diff options
Diffstat (limited to 'usr.sbin/rtadvd')
26 files changed, 0 insertions, 8403 deletions
diff --git a/usr.sbin/rtadvd/Makefile b/usr.sbin/rtadvd/Makefile deleted file mode 100644 index 5d627e5..0000000 --- a/usr.sbin/rtadvd/Makefile +++ /dev/null @@ -1,26 +0,0 @@ -# Copyright (c) 1996 WIDE Project. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modifications, are permitted provided that the above copyright notice -# and this paragraph are duplicated in all such forms and that any -# documentation, advertising materials, and other materials related to -# such distribution and use acknowledge that the software was developed -# by the WIDE Project, Japan. The name of the Project may not be used to -# endorse or promote products derived from this software without -# specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS'' -# AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT -# LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE. -# -# $FreeBSD$ - -PROG= rtadvd -MAN= rtadvd.conf.5 rtadvd.8 -SRCS= rtadvd.c rrenum.c advcap.c if.c config.c timer.c timer_subr.c \ - control.c control_server.c - -LIBADD= util - -WARNS?= 1 - -.include <bsd.prog.mk> diff --git a/usr.sbin/rtadvd/Makefile.depend b/usr.sbin/rtadvd/Makefile.depend deleted file mode 100644 index 7de116d..0000000 --- a/usr.sbin/rtadvd/Makefile.depend +++ /dev/null @@ -1,20 +0,0 @@ -# $FreeBSD$ -# Autogenerated - do NOT edit! - -DIRDEPS = \ - gnu/lib/csu \ - gnu/lib/libgcc \ - include \ - include/arpa \ - include/xlocale \ - lib/${CSU_DIR} \ - lib/libc \ - lib/libcompiler_rt \ - lib/libutil \ - - -.include <dirdeps.mk> - -.if ${DEP_RELDIR} == ${_DEP_RELDIR} -# local dependencies - needed for -jN in clean tree -.endif diff --git a/usr.sbin/rtadvd/advcap.c b/usr.sbin/rtadvd/advcap.c deleted file mode 100644 index 542e066..0000000 --- a/usr.sbin/rtadvd/advcap.c +++ /dev/null @@ -1,436 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: advcap.c,v 1.11 2003/05/19 09:46:50 keiichi Exp $ */ - -/* - * Copyright (c) 1983 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * remcap - routines for dealing with the remote host data base - * - * derived from termcap - */ -#include <sys/types.h> -#include <sys/uio.h> -#include <unistd.h> -#include <fcntl.h> -#include <ctype.h> -#include <stdlib.h> -#include <stdio.h> -#include <syslog.h> -#include <errno.h> -#include <string.h> -#include "pathnames.h" - -#ifndef BUFSIZ -#define BUFSIZ 1024 -#endif -#define MAXHOP 32 /* max number of tc= indirections */ - -#define tgetent agetent -#define tnchktc anchktc -#define tnamatch anamatch -#define tgetnum agetnum -#define tgetflag agetflag -#define tgetstr agetstr - -#if 0 -#define V_TERMCAP "REMOTE" -#define V_TERM "HOST" -#endif - -/* - * termcap - routines for dealing with the terminal capability data base - * - * BUG: Should use a "last" pointer in tbuf, so that searching - * for capabilities alphabetically would not be a n**2/2 - * process when large numbers of capabilities are given. - * Note: If we add a last pointer now we will screw up the - * tc capability. We really should compile termcap. - * - * Essentially all the work here is scanning and decoding escapes - * in string capabilities. We don't use stdio because the editor - * doesn't, and because living w/o it is not hard. - */ - -static char *tbuf; -static int hopcount; /* detect infinite loops in termcap, init 0 */ - -extern const char *conffile; - -int tgetent(char *, char *); -int getent(char *, char *, const char *); -int tnchktc(void); -int tnamatch(char *); -static char *tskip(char *); -int64_t tgetnum(char *); -int tgetflag(char *); -char *tgetstr(char *, char **); -static char *tdecode(char *, char **); - -/* - * Get an entry for terminal name in buffer bp, - * from the termcap file. Parse is very rudimentary; - * we just notice escaped newlines. - */ -int -tgetent(char *bp, char *name) -{ - return (getent(bp, name, conffile)); -} - -int -getent(char *bp, char *name, const char *cfile) -{ - int c; - int i = 0, cnt = 0; - char ibuf[BUFSIZ]; - char *cp; - int tf; - - tbuf = bp; - tf = 0; - /* - * TERMCAP can have one of two things in it. It can be the - * name of a file to use instead of /etc/termcap. In this - * case it better start with a "/". Or it can be an entry to - * use so we don't have to read the file. In this case it - * has to already have the newlines crunched out. - */ - if (cfile && *cfile) - tf = open(cfile, O_RDONLY); - - if (tf < 0) { - syslog(LOG_INFO, - "<%s> open: %s", __func__, strerror(errno)); - return (-2); - } - for (;;) { - cp = bp; - for (;;) { - if (i == cnt) { - cnt = read(tf, ibuf, BUFSIZ); - if (cnt <= 0) { - close(tf); - return (0); - } - i = 0; - } - c = ibuf[i++]; - if (c == '\n') { - if (cp > bp && cp[-1] == '\\') { - cp--; - continue; - } - break; - } - if (cp >= bp + BUFSIZ - 1) { - write(STDERR_FILENO, "Remcap entry too long\n", - 22); - break; - } else - *cp++ = c; - } - *cp = 0; - - /* - * The real work for the match. - */ - if (tnamatch(name)) { - close(tf); - return (tnchktc()); - } - } -} - -/* - * tnchktc: check the last entry, see if it's tc=xxx. If so, - * recursively find xxx and append that entry (minus the names) - * to take the place of the tc=xxx entry. This allows termcap - * entries to say "like an HP2621 but doesn't turn on the labels". - * Note that this works because of the left to right scan. - */ -int -tnchktc(void) -{ - char *p, *q; - char tcname[16]; /* name of similar terminal */ - char tcbuf[BUFSIZ]; - char *holdtbuf = tbuf; - int l; - - p = tbuf + strlen(tbuf) - 2; /* before the last colon */ - while (*--p != ':') - if (p < tbuf) { - write(STDERR_FILENO, "Bad remcap entry\n", 18); - return (0); - } - p++; - /* p now points to beginning of last field */ - if (p[0] != 't' || p[1] != 'c') - return (1); - strlcpy(tcname, p + 3, sizeof tcname); - q = tcname; - while (*q && *q != ':') - q++; - *q = 0; - if (++hopcount > MAXHOP) { - write(STDERR_FILENO, "Infinite tc= loop\n", 18); - return (0); - } - if (getent(tcbuf, tcname, conffile) != 1) { - return (0); - } - for (q = tcbuf; *q++ != ':'; ) - ; - l = p - holdtbuf + strlen(q); - if (l > BUFSIZ) { - write(STDERR_FILENO, "Remcap entry too long\n", 23); - q[BUFSIZ - (p-holdtbuf)] = 0; - } - strcpy(p, q); - tbuf = holdtbuf; - return (1); -} - -/* - * Tnamatch deals with name matching. The first field of the termcap - * entry is a sequence of names separated by |'s, so we compare - * against each such name. The normal : terminator after the last - * name (before the first field) stops us. - */ -int -tnamatch(char *np) -{ - char *Np, *Bp; - - Bp = tbuf; - if (*Bp == '#') - return (0); - for (;;) { - for (Np = np; *Np && *Bp == *Np; Bp++, Np++) - continue; - if (*Np == 0 && (*Bp == '|' || *Bp == ':' || *Bp == 0)) - return (1); - while (*Bp && *Bp != ':' && *Bp != '|') - Bp++; - if (*Bp == 0 || *Bp == ':') - return (0); - Bp++; - } -} - -/* - * Skip to the next field. Notice that this is very dumb, not - * knowing about \: escapes or any such. If necessary, :'s can be put - * into the termcap file in octal. - */ -static char * -tskip(char *bp) -{ - int dquote; - - dquote = 0; - while (*bp) { - switch (*bp) { - case ':': - if (!dquote) - goto breakbreak; - else - bp++; - break; - case '\\': - bp++; - if (isdigit(*bp)) { - while (isdigit(*bp++)) - ; - } else - bp++; - case '"': - dquote = (dquote ? 1 : 0); - bp++; - break; - default: - bp++; - break; - } - } -breakbreak: - if (*bp == ':') - bp++; - return (bp); -} - -/* - * Return the (numeric) option id. - * Numeric options look like - * li#80 - * i.e. the option string is separated from the numeric value by - * a # character. If the option is not found we return -1. - * Note that we handle octal numbers beginning with 0. - */ -int64_t -tgetnum(char *id) -{ - int64_t i; - int base; - char *bp = tbuf; - - for (;;) { - bp = tskip(bp); - if (*bp == 0) - return (-1); - if (strncmp(bp, id, strlen(id)) != 0) - continue; - bp += strlen(id); - if (*bp == '@') - return (-1); - if (*bp != '#') - continue; - bp++; - base = 10; - if (*bp == '0') - base = 8; - i = 0; - while (isdigit(*bp)) - i *= base, i += *bp++ - '0'; - return (i); - } -} - -/* - * Handle a flag option. - * Flag options are given "naked", i.e. followed by a : or the end - * of the buffer. Return 1 if we find the option, or 0 if it is - * not given. - */ -int -tgetflag(char *id) -{ - char *bp = tbuf; - - for (;;) { - bp = tskip(bp); - if (!*bp) - return (0); - if (strncmp(bp, id, strlen(id)) == 0) { - bp += strlen(id); - if (!*bp || *bp == ':') - return (1); - else if (*bp == '@') - return (0); - } - } -} - -/* - * Get a string valued option. - * These are given as - * cl=^Z - * Much decoding is done on the strings, and the strings are - * placed in area, which is a ref parameter which is updated. - * No checking on area overflow. - */ -char * -tgetstr(char *id, char **area) -{ - char *bp = tbuf; - - for (;;) { - bp = tskip(bp); - if (!*bp) - return (0); - if (strncmp(bp, id, strlen(id)) != 0) - continue; - bp += strlen(id); - if (*bp == '@') - return (0); - if (*bp != '=') - continue; - bp++; - return (tdecode(bp, area)); - } -} - -/* - * Tdecode does the grung work to decode the - * string capability escapes. - */ -static char * -tdecode(char *str, char **area) -{ - char *cp; - int c; - const char *dp; - int i; - char term; - - term = ':'; - cp = *area; -again: - if (*str == '"') { - term = '"'; - str++; - } - while ((c = *str++) && c != term) { - switch (c) { - - case '^': - c = *str++ & 037; - break; - - case '\\': - dp = "E\033^^\\\\::n\nr\rt\tb\bf\f\"\""; - c = *str++; -nextc: - if (*dp++ == c) { - c = *dp++; - break; - } - dp++; - if (*dp) - goto nextc; - if (isdigit(c)) { - c -= '0', i = 2; - do - c <<= 3, c |= *str++ - '0'; - while (--i && isdigit(*str)); - } - break; - } - *cp++ = c; - } - if (c == term && term != ':') { - term = ':'; - goto again; - } - *cp++ = 0; - str = *area; - *area = cp; - return (str); -} diff --git a/usr.sbin/rtadvd/advcap.h b/usr.sbin/rtadvd/advcap.h deleted file mode 100644 index 3cc124a..0000000 --- a/usr.sbin/rtadvd/advcap.h +++ /dev/null @@ -1,46 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: advcap.h,v 1.5 2003/06/09 05:40:54 t-momose Exp $ */ - -/* - * Copyright (C) 1994,1995 by Andrey A. Chernov, Moscow, Russia. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* Based on Id: termcap.h,v 1.8 1996/09/10 12:42:10 peter Exp */ - -#ifndef _ADVCAP_H_ -#define _ADVCAP_H_ - -#include <sys/cdefs.h> - -__BEGIN_DECLS - -extern int agetent(char *, const char *); -extern int agetflag(const char *); -extern int64_t agetnum(const char *); -extern char *agetstr(const char *, char **); - -__END_DECLS - -#endif /* _ADVCAP_H_ */ diff --git a/usr.sbin/rtadvd/config.c b/usr.sbin/rtadvd/config.c deleted file mode 100644 index db16e33..0000000 --- a/usr.sbin/rtadvd/config.c +++ /dev/null @@ -1,1541 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: config.c,v 1.84 2003/08/05 12:34:23 itojun Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/param.h> -#include <sys/ioctl.h> -#include <sys/socket.h> - -#include <net/if.h> -#include <net/route.h> -#include <net/if_dl.h> - -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/ip6.h> -#include <netinet6/ip6_var.h> -#include <netinet/icmp6.h> -#include <netinet6/nd6.h> - -#include <arpa/inet.h> - -#include <stdio.h> -#include <syslog.h> -#include <errno.h> -#include <inttypes.h> -#include <netdb.h> -#include <string.h> -#include <search.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> -#include <ifaddrs.h> - -#include "rtadvd.h" -#include "advcap.h" -#include "timer.h" -#include "if.h" -#include "config.h" - -/* label of tcapcode + number + domain name + zero octet */ -static char entbuf[10 + 3 + NI_MAXHOST + 1]; -static char oentbuf[10 + 3 + NI_MAXHOST + 1]; -static char abuf[DNAME_LABELENC_MAXLEN]; - -static time_t prefix_timo = (60 * 120); /* 2 hours. - * XXX: should be configurable. */ - -static struct rtadvd_timer *prefix_timeout(void *); -static void makeentry(char *, size_t, int, const char *); -static ssize_t dname_labelenc(char *, const char *); - -/* Encode domain name label encoding in RFC 1035 Section 3.1 */ -static ssize_t -dname_labelenc(char *dst, const char *src) -{ - char *dst_origin; - char *p; - size_t len; - - dst_origin = dst; - len = strlen(src); - - if (len + len / 64 + 1 + 1 > DNAME_LABELENC_MAXLEN) - return (-1); - /* Length fields per 63 octets + '\0' (<= DNAME_LABELENC_MAXLEN) */ - memset(dst, 0, len + len / 64 + 1 + 1); - - syslog(LOG_DEBUG, "<%s> labelenc = %s", __func__, src); - while (src && (len = strlen(src)) != 0) { - /* Put a length field with 63 octet limitation first. */ - p = strchr(src, '.'); - if (p == NULL) - *dst = len = MIN(63, len); - else - *dst = len = MIN(63, p - src); - if (dst + 1 + len < dst_origin + DNAME_LABELENC_MAXLEN) - dst++; - else - return (-1); - /* Copy 63 octets at most. */ - memcpy(dst, src, len); - dst += len; - if (p == NULL) /* the last label */ - break; - src = p + 1; - } - /* Always need a 0-length label at the tail. */ - *dst++ = '\0'; - - syslog(LOG_DEBUG, "<%s> labellen = %td", __func__, dst - dst_origin); - return (dst - dst_origin); -} - -#define MUSTHAVE(var, cap) \ - do { \ - int64_t t; \ - if ((t = agetnum(cap)) < 0) { \ - fprintf(stderr, "rtadvd: need %s for interface %s\n", \ - cap, intface); \ - exit(1); \ - } \ - var = t; \ - } while (0) - -#define MAYHAVE(var, cap, def) \ - do { \ - if ((var = agetnum(cap)) < 0) \ - var = def; \ - } while (0) - -int -loadconfig_index(int idx) -{ - char ifname[IFNAMSIZ]; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (if_indextoname(idx, ifname) != NULL) - return (loadconfig_ifname(ifname)); - else - return (1); -} - -int -loadconfig_ifname(char *ifname) -{ - struct ifinfo *ifi; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - update_ifinfo(&ifilist, UPDATE_IFINFO_ALL); - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - /* NULL means all IFs will be processed. */ - if (ifname != NULL && - strcmp(ifi->ifi_ifname, ifname) != 0) - continue; - - if (!ifi->ifi_persist) { - syslog(LOG_INFO, - "<%s> %s is not a target interface. " - "Ignored at this moment.", __func__, - ifi->ifi_ifname); - continue; - - } - if (ifi->ifi_ifindex == 0) { - syslog(LOG_ERR, - "<%s> %s not found. " - "Ignored at this moment.", __func__, - ifi->ifi_ifname); - continue; - } - if (getconfig(ifi) == NULL) { - syslog(LOG_ERR, - "<%s> invalid configuration for %s. " - "Ignored at this moment.", __func__, - ifi->ifi_ifname); - continue; - } - } - return (0); -} - -int -rm_ifinfo_index(int idx) -{ - struct ifinfo *ifi; - - ifi = if_indextoifinfo(idx); - if (ifi == NULL) { - syslog(LOG_ERR, "<%s>: ifinfo not found (idx=%d)", - __func__, idx); - return (-1); - } - - return (rm_ifinfo(ifi)); -} - -int -rm_ifinfo(struct ifinfo *ifi) -{ - int error; - - syslog(LOG_DEBUG, "<%s> enter (%s).", __func__, ifi->ifi_ifname); - switch (ifi->ifi_state) { - case IFI_STATE_UNCONFIGURED: - return (0); - break; - default: - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - syslog(LOG_DEBUG, - "<%s> ifname=%s marked as UNCONFIGURED.", - __func__, ifi->ifi_ifname); - - /* XXX: No MC leaving here because index is disappeared */ - - /* Inactivate timer */ - rtadvd_remove_timer(ifi->ifi_ra_timer); - ifi->ifi_ra_timer = NULL; - break; - } - - /* clean up ifi */ - if (!ifi->ifi_persist) { - TAILQ_REMOVE(&ifilist, ifi, ifi_next); - syslog(LOG_DEBUG, "<%s>: ifinfo (idx=%d) removed.", - __func__, ifi->ifi_ifindex); - } else { - /* recreate an empty entry */ - update_persist_ifinfo(&ifilist, ifi->ifi_ifname); - syslog(LOG_DEBUG, "<%s>: ifname=%s is persistent.", - __func__, ifi->ifi_ifname); - } - - /* clean up rai if any */ - switch (ifi->ifi_state) { - case IFI_STATE_CONFIGURED: - if (ifi->ifi_rainfo != NULL) { - error = rm_rainfo(ifi->ifi_rainfo); - if (error) - return (error); - ifi->ifi_rainfo = NULL; - } - break; - case IFI_STATE_TRANSITIVE: - if (ifi->ifi_rainfo == ifi->ifi_rainfo_trans) { - if (ifi->ifi_rainfo != NULL) { - error = rm_rainfo(ifi->ifi_rainfo); - if (error) - return (error); - ifi->ifi_rainfo = NULL; - ifi->ifi_rainfo_trans = NULL; - } - } else { - if (ifi->ifi_rainfo != NULL) { - error = rm_rainfo(ifi->ifi_rainfo); - if (error) - return (error); - ifi->ifi_rainfo = NULL; - } - if (ifi->ifi_rainfo_trans != NULL) { - error = rm_rainfo(ifi->ifi_rainfo_trans); - if (error) - return (error); - ifi->ifi_rainfo_trans = NULL; - } - } - } - - syslog(LOG_DEBUG, "<%s> leave (%s).", __func__, ifi->ifi_ifname); - if (!ifi->ifi_persist) - free(ifi); - return (0); -} - -int -rm_rainfo(struct rainfo *rai) -{ - struct prefix *pfx; - struct soliciter *sol; - struct rdnss *rdn; - struct rdnss_addr *rdna; - struct dnssl *dns; - struct rtinfo *rti; - - syslog(LOG_DEBUG, "<%s>: enter", __func__); - - TAILQ_REMOVE(&railist, rai, rai_next); - if (rai->rai_ifinfo != NULL) - syslog(LOG_DEBUG, "<%s>: rainfo (idx=%d) removed.", - __func__, rai->rai_ifinfo->ifi_ifindex); - - if (rai->rai_ra_data != NULL) - free(rai->rai_ra_data); - - while ((pfx = TAILQ_FIRST(&rai->rai_prefix)) != NULL) - delete_prefix(pfx); - while ((sol = TAILQ_FIRST(&rai->rai_soliciter)) != NULL) { - TAILQ_REMOVE(&rai->rai_soliciter, sol, sol_next); - free(sol); - } - while ((rdn = TAILQ_FIRST(&rai->rai_rdnss)) != NULL) { - TAILQ_REMOVE(&rai->rai_rdnss, rdn, rd_next); - while ((rdna = TAILQ_FIRST(&rdn->rd_list)) != NULL) { - TAILQ_REMOVE(&rdn->rd_list, rdna, ra_next); - free(rdna); - } - free(rdn); - } - while ((dns = TAILQ_FIRST(&rai->rai_dnssl)) != NULL) { - TAILQ_REMOVE(&rai->rai_dnssl, dns, dn_next); - free(dns); - } - while ((rti = TAILQ_FIRST(&rai->rai_route)) != NULL) { - TAILQ_REMOVE(&rai->rai_route, rti, rti_next); - free(rti); - } - free(rai); - syslog(LOG_DEBUG, "<%s>: leave", __func__); - - return (0); -} - -struct ifinfo * -getconfig(struct ifinfo *ifi) -{ - int stat, i; - int error; - char tbuf[BUFSIZ]; - struct rainfo *rai; - struct rainfo *rai_old; - int32_t val; - int64_t val64; - char buf[BUFSIZ]; - char *bp = buf; - char *addr, *flagstr; - - if (ifi == NULL) /* if does not exist */ - return (NULL); - - if (ifi->ifi_state == IFI_STATE_TRANSITIVE && - ifi->ifi_rainfo == NULL) { - syslog(LOG_INFO, "<%s> %s is shutting down. Skipped.", - __func__, ifi->ifi_ifname); - return (NULL); - } - - if ((stat = agetent(tbuf, ifi->ifi_ifname)) <= 0) { - memset(tbuf, 0, sizeof(tbuf)); - syslog(LOG_INFO, - "<%s> %s isn't defined in the configuration file" - " or the configuration file doesn't exist." - " Treat it as default", - __func__, ifi->ifi_ifname); - } - - ELM_MALLOC(rai, exit(1)); - TAILQ_INIT(&rai->rai_prefix); - TAILQ_INIT(&rai->rai_route); - TAILQ_INIT(&rai->rai_rdnss); - TAILQ_INIT(&rai->rai_dnssl); - TAILQ_INIT(&rai->rai_soliciter); - rai->rai_ifinfo = ifi; - - /* gather on-link prefixes from the network interfaces. */ - if (agetflag("noifprefix")) - rai->rai_advifprefix = 0; - else - rai->rai_advifprefix = 1; - - /* get interface information */ - if (agetflag("nolladdr")) - rai->rai_advlinkopt = 0; - else - rai->rai_advlinkopt = 1; - if (rai->rai_advlinkopt) { - if (ifi->ifi_sdl.sdl_type == 0) { - syslog(LOG_ERR, - "<%s> can't get information of %s", - __func__, ifi->ifi_ifname); - goto getconfig_free_rai; - } - } - - /* - * set router configuration variables. - */ - MAYHAVE(val, "maxinterval", DEF_MAXRTRADVINTERVAL); - if (val < MIN_MAXINTERVAL || val > MAX_MAXINTERVAL) { - syslog(LOG_ERR, - "<%s> maxinterval (%" PRIu32 ") on %s is invalid " - "(must be between %u and %u)", __func__, val, - ifi->ifi_ifname, MIN_MAXINTERVAL, MAX_MAXINTERVAL); - goto getconfig_free_rai; - } - rai->rai_maxinterval = (uint16_t)val; - - MAYHAVE(val, "mininterval", rai->rai_maxinterval/3); - if ((uint16_t)val < MIN_MININTERVAL || - (uint16_t)val > (rai->rai_maxinterval * 3) / 4) { - syslog(LOG_ERR, - "<%s> mininterval (%" PRIu32 ") on %s is invalid " - "(must be between %d and %d)", - __func__, val, ifi->ifi_ifname, MIN_MININTERVAL, - (rai->rai_maxinterval * 3) / 4); - goto getconfig_free_rai; - } - rai->rai_mininterval = (uint16_t)val; - - MAYHAVE(val, "chlim", DEF_ADVCURHOPLIMIT); - rai->rai_hoplimit = val & 0xff; - - if ((flagstr = (char *)agetstr("raflags", &bp))) { - val = 0; - if (strchr(flagstr, 'm')) - val |= ND_RA_FLAG_MANAGED; - if (strchr(flagstr, 'o')) - val |= ND_RA_FLAG_OTHER; - if (strchr(flagstr, 'h')) - val |= ND_RA_FLAG_RTPREF_HIGH; - if (strchr(flagstr, 'l')) { - if ((val & ND_RA_FLAG_RTPREF_HIGH)) { - syslog(LOG_ERR, "<%s> the \'h\' and \'l\'" - " router flags are exclusive", __func__); - goto getconfig_free_rai; - } - val |= ND_RA_FLAG_RTPREF_LOW; - } - } else - MAYHAVE(val, "raflags", 0); - - rai->rai_managedflg = val & ND_RA_FLAG_MANAGED; - rai->rai_otherflg = val & ND_RA_FLAG_OTHER; -#ifndef ND_RA_FLAG_RTPREF_MASK -#define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */ -#define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */ -#endif - rai->rai_rtpref = val & ND_RA_FLAG_RTPREF_MASK; - if (rai->rai_rtpref == ND_RA_FLAG_RTPREF_RSV) { - syslog(LOG_ERR, "<%s> invalid router preference (%02x) on %s", - __func__, rai->rai_rtpref, ifi->ifi_ifname); - goto getconfig_free_rai; - } - - MAYHAVE(val, "rltime", rai->rai_maxinterval * 3); - if ((uint16_t)val && ((uint16_t)val < rai->rai_maxinterval || - (uint16_t)val > MAXROUTERLIFETIME)) { - syslog(LOG_ERR, - "<%s> router lifetime (%" PRIu32 ") on %s is invalid " - "(must be 0 or between %d and %d)", - __func__, val, ifi->ifi_ifname, rai->rai_maxinterval, - MAXROUTERLIFETIME); - goto getconfig_free_rai; - } - rai->rai_lifetime = val & 0xffff; - - MAYHAVE(val, "rtime", DEF_ADVREACHABLETIME); - if (val < 0 || val > MAXREACHABLETIME) { - syslog(LOG_ERR, - "<%s> reachable time (%" PRIu32 ") on %s is invalid " - "(must be no greater than %d)", - __func__, val, ifi->ifi_ifname, MAXREACHABLETIME); - goto getconfig_free_rai; - } - rai->rai_reachabletime = (uint32_t)val; - - MAYHAVE(val64, "retrans", DEF_ADVRETRANSTIMER); - if (val64 < 0 || val64 > 0xffffffff) { - syslog(LOG_ERR, "<%s> retrans time (%" PRIu64 ") on %s out of range", - __func__, val64, ifi->ifi_ifname); - goto getconfig_free_rai; - } - rai->rai_retranstimer = (uint32_t)val64; - - if (agetnum("hapref") != -1 || agetnum("hatime") != -1) { - syslog(LOG_ERR, - "<%s> mobile-ip6 configuration not supported", - __func__); - goto getconfig_free_rai; - } - /* prefix information */ - - /* - * This is an implementation specific parameter to consider - * link propagation delays and poorly synchronized clocks when - * checking consistency of advertised lifetimes. - */ - MAYHAVE(val, "clockskew", 0); - rai->rai_clockskew = val; - - rai->rai_pfxs = 0; - for (i = -1; i < MAXPREFIX; i++) { - struct prefix *pfx; - - makeentry(entbuf, sizeof(entbuf), i, "addr"); - addr = (char *)agetstr(entbuf, &bp); - if (addr == NULL) - continue; - - /* allocate memory to store prefix information */ - ELM_MALLOC(pfx, exit(1)); - pfx->pfx_rainfo = rai; - pfx->pfx_origin = PREFIX_FROM_CONFIG; - - if (inet_pton(AF_INET6, addr, &pfx->pfx_prefix) != 1) { - syslog(LOG_ERR, - "<%s> inet_pton failed for %s", - __func__, addr); - goto getconfig_free_pfx; - } - if (IN6_IS_ADDR_MULTICAST(&pfx->pfx_prefix)) { - syslog(LOG_ERR, - "<%s> multicast prefix (%s) must " - "not be advertised on %s", - __func__, addr, ifi->ifi_ifname); - goto getconfig_free_pfx; - } - if (IN6_IS_ADDR_LINKLOCAL(&pfx->pfx_prefix)) - syslog(LOG_NOTICE, - "<%s> link-local prefix (%s) will be" - " advertised on %s", - __func__, addr, ifi->ifi_ifname); - - makeentry(entbuf, sizeof(entbuf), i, "prefixlen"); - MAYHAVE(val, entbuf, 64); - if (val < 0 || val > 128) { - syslog(LOG_ERR, "<%s> prefixlen (%" PRIu32 ") for %s " - "on %s out of range", - __func__, val, addr, ifi->ifi_ifname); - goto getconfig_free_pfx; - } - pfx->pfx_prefixlen = (int)val; - - makeentry(entbuf, sizeof(entbuf), i, "pinfoflags"); - if ((flagstr = (char *)agetstr(entbuf, &bp))) { - val = 0; - if (strchr(flagstr, 'l')) - val |= ND_OPT_PI_FLAG_ONLINK; - if (strchr(flagstr, 'a')) - val |= ND_OPT_PI_FLAG_AUTO; - } else { - MAYHAVE(val, entbuf, - (ND_OPT_PI_FLAG_ONLINK|ND_OPT_PI_FLAG_AUTO)); - } - pfx->pfx_onlinkflg = val & ND_OPT_PI_FLAG_ONLINK; - pfx->pfx_autoconfflg = val & ND_OPT_PI_FLAG_AUTO; - - makeentry(entbuf, sizeof(entbuf), i, "vltime"); - MAYHAVE(val64, entbuf, DEF_ADVVALIDLIFETIME); - if (val64 < 0 || val64 > 0xffffffff) { - syslog(LOG_ERR, "<%s> vltime (%" PRIu64 ") for " - "%s/%d on %s is out of range", - __func__, val64, - addr, pfx->pfx_prefixlen, ifi->ifi_ifname); - goto getconfig_free_pfx; - } - pfx->pfx_validlifetime = (uint32_t)val64; - - makeentry(entbuf, sizeof(entbuf), i, "vltimedecr"); - if (agetflag(entbuf)) { - struct timespec now; - - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - pfx->pfx_vltimeexpire = - now.tv_sec + pfx->pfx_validlifetime; - } - - makeentry(entbuf, sizeof(entbuf), i, "pltime"); - MAYHAVE(val64, entbuf, DEF_ADVPREFERREDLIFETIME); - if (val64 < 0 || val64 > 0xffffffff) { - syslog(LOG_ERR, - "<%s> pltime (%" PRIu64 ") for %s/%d on %s " - "is out of range", - __func__, val64, - addr, pfx->pfx_prefixlen, ifi->ifi_ifname); - goto getconfig_free_pfx; - } - pfx->pfx_preflifetime = (uint32_t)val64; - - makeentry(entbuf, sizeof(entbuf), i, "pltimedecr"); - if (agetflag(entbuf)) { - struct timespec now; - - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - pfx->pfx_pltimeexpire = - now.tv_sec + pfx->pfx_preflifetime; - } - /* link into chain */ - TAILQ_INSERT_TAIL(&rai->rai_prefix, pfx, pfx_next); - rai->rai_pfxs++; - continue; -getconfig_free_pfx: - free(pfx); - } - if (rai->rai_advifprefix && rai->rai_pfxs == 0) - get_prefix(rai); - - MAYHAVE(val64, "mtu", 0); - if (val < 0 || val64 > 0xffffffff) { - syslog(LOG_ERR, - "<%s> mtu (%" PRIu64 ") on %s out of range", - __func__, val64, ifi->ifi_ifname); - goto getconfig_free_rai; - } - rai->rai_linkmtu = (uint32_t)val64; - if (rai->rai_linkmtu == 0) { - char *mtustr; - - if ((mtustr = (char *)agetstr("mtu", &bp)) && - strcmp(mtustr, "auto") == 0) - rai->rai_linkmtu = ifi->ifi_phymtu; - } - else if (rai->rai_linkmtu < IPV6_MMTU || - rai->rai_linkmtu > ifi->ifi_phymtu) { - syslog(LOG_ERR, - "<%s> advertised link mtu (%" PRIu32 ") on %s is invalid (must " - "be between least MTU (%d) and physical link MTU (%d)", - __func__, rai->rai_linkmtu, ifi->ifi_ifname, - IPV6_MMTU, ifi->ifi_phymtu); - goto getconfig_free_rai; - } - -#ifdef SIOCSIFINFO_IN6 - { - struct in6_ndireq ndi; - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "<%s> socket: %s", __func__, - strerror(errno)); - exit(1); - } - memset(&ndi, 0, sizeof(ndi)); - strlcpy(ndi.ifname, ifi->ifi_ifname, sizeof(ndi.ifname)); - if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&ndi) < 0) - syslog(LOG_INFO, "<%s> ioctl:SIOCGIFINFO_IN6 at %s: %s", - __func__, ifi->ifi_ifname, strerror(errno)); - - /* reflect the RA info to the host variables in kernel */ - ndi.ndi.chlim = rai->rai_hoplimit; - ndi.ndi.retrans = rai->rai_retranstimer; - ndi.ndi.basereachable = rai->rai_reachabletime; - if (ioctl(s, SIOCSIFINFO_IN6, (caddr_t)&ndi) < 0) - syslog(LOG_INFO, "<%s> ioctl:SIOCSIFINFO_IN6 at %s: %s", - __func__, ifi->ifi_ifname, strerror(errno)); - - close(s); - } -#endif - - /* route information */ - rai->rai_routes = 0; - for (i = -1; i < MAXROUTE; i++) { - struct rtinfo *rti; - - makeentry(entbuf, sizeof(entbuf), i, "rtprefix"); - addr = (char *)agetstr(entbuf, &bp); - if (addr == NULL) { - makeentry(oentbuf, sizeof(oentbuf), i, "rtrprefix"); - addr = (char *)agetstr(oentbuf, &bp); - if (addr) - fprintf(stderr, "%s was obsoleted. Use %s.\n", - oentbuf, entbuf); - } - if (addr == NULL) - continue; - - /* allocate memory to store prefix information */ - ELM_MALLOC(rti, exit(1)); - - if (inet_pton(AF_INET6, addr, &rti->rti_prefix) != 1) { - syslog(LOG_ERR, "<%s> inet_pton failed for %s", - __func__, addr); - goto getconfig_free_rti; - } -#if 0 - /* - * XXX: currently there's no restriction in route information - * prefix according to - * draft-ietf-ipngwg-router-selection-00.txt. - * However, I think the similar restriction be necessary. - */ - MAYHAVE(val64, entbuf, DEF_ADVVALIDLIFETIME); - if (IN6_IS_ADDR_MULTICAST(&rti->prefix)) { - syslog(LOG_ERR, - "<%s> multicast route (%s) must " - "not be advertised on %s", - __func__, addr, ifi->ifi_ifname); - goto getconfig_free_rti; - } - if (IN6_IS_ADDR_LINKLOCAL(&rti->prefix)) { - syslog(LOG_NOTICE, - "<%s> link-local route (%s) will " - "be advertised on %s", - __func__, addr, ifi->ifi_ifname); - goto getconfig_free_rti; - } -#endif - - makeentry(entbuf, sizeof(entbuf), i, "rtplen"); - /* XXX: 256 is a magic number for compatibility check. */ - MAYHAVE(val, entbuf, 256); - if (val == 256) { - makeentry(oentbuf, sizeof(oentbuf), i, "rtrplen"); - MAYHAVE(val, oentbuf, 256); - if (val != 256) - fprintf(stderr, "%s was obsoleted. Use %s.\n", - oentbuf, entbuf); - else - val = 64; - } - if (val < 0 || val > 128) { - syslog(LOG_ERR, "<%s> prefixlen (%" PRIu32 ") for %s on %s " - "out of range", - __func__, val, addr, ifi->ifi_ifname); - goto getconfig_free_rti; - } - rti->rti_prefixlen = (int)val; - - makeentry(entbuf, sizeof(entbuf), i, "rtflags"); - if ((flagstr = (char *)agetstr(entbuf, &bp))) { - val = 0; - if (strchr(flagstr, 'h')) - val |= ND_RA_FLAG_RTPREF_HIGH; - if (strchr(flagstr, 'l')) { - if ((val & ND_RA_FLAG_RTPREF_HIGH)) { - syslog(LOG_ERR, - "<%s> the \'h\' and \'l\' route" - " preferences are exclusive", - __func__); - goto getconfig_free_rti; - } - val |= ND_RA_FLAG_RTPREF_LOW; - } - } else - MAYHAVE(val, entbuf, 256); /* XXX */ - if (val == 256) { - makeentry(oentbuf, sizeof(oentbuf), i, "rtrflags"); - MAYHAVE(val, oentbuf, 256); - if (val != 256) { - fprintf(stderr, "%s was obsoleted. Use %s.\n", - oentbuf, entbuf); - } else - val = 0; - } - rti->rti_rtpref = val & ND_RA_FLAG_RTPREF_MASK; - if (rti->rti_rtpref == ND_RA_FLAG_RTPREF_RSV) { - syslog(LOG_ERR, "<%s> invalid route preference (%02x) " - "for %s/%d on %s", - __func__, rti->rti_rtpref, addr, - rti->rti_prefixlen, ifi->ifi_ifname); - goto getconfig_free_rti; - } - - /* - * Since the spec does not a default value, we should make - * this entry mandatory. However, FreeBSD 4.4 has shipped - * with this field being optional, we use the router lifetime - * as an ad-hoc default value with a warning message. - */ - makeentry(entbuf, sizeof(entbuf), i, "rtltime"); - MAYHAVE(val64, entbuf, -1); - if (val64 == -1) { - makeentry(oentbuf, sizeof(oentbuf), i, "rtrltime"); - MAYHAVE(val64, oentbuf, -1); - if (val64 != -1) - fprintf(stderr, "%s was obsoleted. Use %s.\n", - oentbuf, entbuf); - else { - fprintf(stderr, "%s should be specified " - "for interface %s.\n", entbuf, - ifi->ifi_ifname); - val64 = rai->rai_lifetime; - } - } - if (val64 < 0 || val64 > 0xffffffff) { - syslog(LOG_ERR, "<%s> route lifetime (%" PRIu64 ") for " - "%s/%d on %s out of range", __func__, - val64, addr, rti->rti_prefixlen, - ifi->ifi_ifname); - goto getconfig_free_rti; - } - rti->rti_ltime = (uint32_t)val64; - - /* link into chain */ - TAILQ_INSERT_TAIL(&rai->rai_route, rti, rti_next); - rai->rai_routes++; - continue; -getconfig_free_rti: - free(rti); - } - - /* DNS server and DNS search list information */ - for (i = -1; i < MAXRDNSSENT ; i++) { - struct rdnss *rdn; - struct rdnss_addr *rdna; - char *ap; - int c; - - makeentry(entbuf, sizeof(entbuf), i, "rdnss"); - addr = (char *)agetstr(entbuf, &bp); - if (addr == NULL) - continue; - ELM_MALLOC(rdn, exit(1)); - - TAILQ_INIT(&rdn->rd_list); - - for (ap = addr; ap - addr < (ssize_t)strlen(addr); ap += c+1) { - c = strcspn(ap, ","); - strncpy(abuf, ap, c); - abuf[c] = '\0'; - ELM_MALLOC(rdna, goto getconfig_free_rdn); - if (inet_pton(AF_INET6, abuf, &rdna->ra_dns) != 1) { - syslog(LOG_ERR, "<%s> inet_pton failed for %s", - __func__, abuf); - free(rdna); - goto getconfig_free_rdn; - } - TAILQ_INSERT_TAIL(&rdn->rd_list, rdna, ra_next); - } - - makeentry(entbuf, sizeof(entbuf), i, "rdnssltime"); - MAYHAVE(val, entbuf, (rai->rai_maxinterval * 3 / 2)); - if ((uint16_t)val < rai->rai_maxinterval || - (uint16_t)val > rai->rai_maxinterval * 2) { - syslog(LOG_ERR, "%s (%" PRIu16 ") on %s is invalid " - "(must be between %d and %d)", - entbuf, val, ifi->ifi_ifname, rai->rai_maxinterval, - rai->rai_maxinterval * 2); - goto getconfig_free_rdn; - } - rdn->rd_ltime = val; - - /* link into chain */ - TAILQ_INSERT_TAIL(&rai->rai_rdnss, rdn, rd_next); - continue; -getconfig_free_rdn: - while ((rdna = TAILQ_FIRST(&rdn->rd_list)) != NULL) { - TAILQ_REMOVE(&rdn->rd_list, rdna, ra_next); - free(rdna); - } - free(rdn); - } - - for (i = -1; i < MAXDNSSLENT ; i++) { - struct dnssl *dns; - struct dnssl_addr *dnsa; - char *ap; - int c; - - makeentry(entbuf, sizeof(entbuf), i, "dnssl"); - addr = (char *)agetstr(entbuf, &bp); - if (addr == NULL) - continue; - - ELM_MALLOC(dns, exit(1)); - - TAILQ_INIT(&dns->dn_list); - - for (ap = addr; ap - addr < (ssize_t)strlen(addr); ap += c+1) { - c = strcspn(ap, ","); - strncpy(abuf, ap, c); - abuf[c] = '\0'; - ELM_MALLOC(dnsa, goto getconfig_free_dns); - dnsa->da_len = dname_labelenc(dnsa->da_dom, abuf); - if (dnsa->da_len < 0) { - syslog(LOG_ERR, "Invalid dnssl entry: %s", - abuf); - goto getconfig_free_dns; - } - syslog(LOG_DEBUG, "<%s>: dnsa->da_len = %d", __func__, - dnsa->da_len); - TAILQ_INSERT_TAIL(&dns->dn_list, dnsa, da_next); - } - - makeentry(entbuf, sizeof(entbuf), i, "dnsslltime"); - MAYHAVE(val, entbuf, (rai->rai_maxinterval * 3 / 2)); - if ((uint16_t)val < rai->rai_maxinterval || - (uint16_t)val > rai->rai_maxinterval * 2) { - syslog(LOG_ERR, "%s (%" PRIu16 ") on %s is invalid " - "(must be between %d and %d)", - entbuf, val, ifi->ifi_ifname, rai->rai_maxinterval, - rai->rai_maxinterval * 2); - goto getconfig_free_dns; - } - dns->dn_ltime = val; - - /* link into chain */ - TAILQ_INSERT_TAIL(&rai->rai_dnssl, dns, dn_next); - continue; -getconfig_free_dns: - while ((dnsa = TAILQ_FIRST(&dns->dn_list)) != NULL) { - TAILQ_REMOVE(&dns->dn_list, dnsa, da_next); - free(dnsa); - } - free(dns); - } - /* construct the sending packet */ - make_packet(rai); - - /* - * If an entry with the same ifindex exists, remove it first. - * Before the removal, RDNSS and DNSSL options with - * zero-lifetime will be sent. - */ - switch (ifi->ifi_state) { - case IFI_STATE_UNCONFIGURED: - /* UNCONFIGURED -> TRANSITIVE */ - - error = sock_mc_join(&sock, ifi->ifi_ifindex); - if (error) - exit(1); - - ifi->ifi_state = IFI_STATE_TRANSITIVE; - ifi->ifi_burstcount = MAX_INITIAL_RTR_ADVERTISEMENTS; - ifi->ifi_burstinterval = MAX_INITIAL_RTR_ADVERT_INTERVAL; - - /* The same two rai mean initial burst */ - ifi->ifi_rainfo = rai; - ifi->ifi_rainfo_trans = rai; - TAILQ_INSERT_TAIL(&railist, rai, rai_next); - - if (ifi->ifi_ra_timer == NULL) - ifi->ifi_ra_timer = rtadvd_add_timer(ra_timeout, - ra_timer_update, ifi, ifi); - ra_timer_update(ifi, &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - - syslog(LOG_DEBUG, - "<%s> ifname=%s marked as TRANSITIVE (initial burst).", - __func__, ifi->ifi_ifname); - break; - case IFI_STATE_CONFIGURED: - /* CONFIGURED -> TRANSITIVE */ - rai_old = ifi->ifi_rainfo; - if (rai_old == NULL) { - syslog(LOG_ERR, - "<%s> ifi_rainfo is NULL" - " in IFI_STATE_CONFIGURED.", __func__); - ifi = NULL; - break; - } else { - struct rdnss *rdn; - struct dnssl *dns; - - rai_old->rai_lifetime = 0; - TAILQ_FOREACH(rdn, &rai_old->rai_rdnss, rd_next) - rdn->rd_ltime = 0; - TAILQ_FOREACH(dns, &rai_old->rai_dnssl, dn_next) - dns->dn_ltime = 0; - - ifi->ifi_rainfo_trans = rai_old; - ifi->ifi_state = IFI_STATE_TRANSITIVE; - ifi->ifi_burstcount = MAX_FINAL_RTR_ADVERTISEMENTS; - ifi->ifi_burstinterval = MIN_DELAY_BETWEEN_RAS; - - ra_timer_update(ifi, &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - - syslog(LOG_DEBUG, - "<%s> ifname=%s marked as TRANSITIVE" - " (transitional burst)", - __func__, ifi->ifi_ifname); - } - ifi->ifi_rainfo = rai; - TAILQ_INSERT_TAIL(&railist, rai, rai_next); - break; - case IFI_STATE_TRANSITIVE: - if (ifi->ifi_rainfo != NULL) { - if (ifi->ifi_rainfo == ifi->ifi_rainfo_trans) { - /* Reinitialize initial burst */ - rm_rainfo(ifi->ifi_rainfo); - ifi->ifi_rainfo = rai; - ifi->ifi_rainfo_trans = rai; - ifi->ifi_burstcount = - MAX_INITIAL_RTR_ADVERTISEMENTS; - ifi->ifi_burstinterval = - MAX_INITIAL_RTR_ADVERT_INTERVAL; - } else { - /* Replace ifi_rainfo with the new one */ - rm_rainfo(ifi->ifi_rainfo); - ifi->ifi_rainfo = rai; - } - TAILQ_INSERT_TAIL(&railist, rai, rai_next); - - ra_timer_update(ifi, &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - } else { - /* XXX: NOTREACHED. Being shut down. */ - syslog(LOG_ERR, - "<%s> %s is shutting down. Skipped.", - __func__, ifi->ifi_ifname); - rm_rainfo(rai); - - return (NULL); - } - break; - } - - return (ifi); - -getconfig_free_rai: - free(rai); - return (NULL); -} - -void -get_prefix(struct rainfo *rai) -{ - struct ifaddrs *ifap, *ifa; - struct prefix *pfx; - struct in6_addr *a; - struct ifinfo *ifi; - char *p, *ep, *m, *lim; - char ntopbuf[INET6_ADDRSTRLEN]; - - if (getifaddrs(&ifap) < 0) { - syslog(LOG_ERR, - "<%s> can't get interface addresses", - __func__); - exit(1); - } - ifi = rai->rai_ifinfo; - - for (ifa = ifap; ifa; ifa = ifa->ifa_next) { - int plen; - - if (strcmp(ifa->ifa_name, ifi->ifi_ifname) != 0) - continue; - if (ifa->ifa_addr->sa_family != AF_INET6) - continue; - a = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr; - if (IN6_IS_ADDR_LINKLOCAL(a)) - continue; - - /* get prefix length */ - m = (char *)&((struct sockaddr_in6 *)ifa->ifa_netmask)->sin6_addr; - lim = (char *)(ifa->ifa_netmask) + ifa->ifa_netmask->sa_len; - plen = prefixlen(m, lim); - if (plen <= 0 || plen > 128) { - syslog(LOG_ERR, "<%s> failed to get prefixlen " - "or prefix is invalid", - __func__); - exit(1); - } - if (plen == 128) /* XXX */ - continue; - if (find_prefix(rai, a, plen)) { - /* ignore a duplicated prefix. */ - continue; - } - - /* allocate memory to store prefix info. */ - ELM_MALLOC(pfx, exit(1)); - - /* set prefix, sweep bits outside of prefixlen */ - pfx->pfx_prefixlen = plen; - memcpy(&pfx->pfx_prefix, a, sizeof(*a)); - p = (char *)&pfx->pfx_prefix; - ep = (char *)(&pfx->pfx_prefix + 1); - while (m < lim && p < ep) - *p++ &= *m++; - while (p < ep) - *p++ = 0x00; - if (!inet_ntop(AF_INET6, &pfx->pfx_prefix, ntopbuf, - sizeof(ntopbuf))) { - syslog(LOG_ERR, "<%s> inet_ntop failed", __func__); - exit(1); - } - syslog(LOG_DEBUG, - "<%s> add %s/%d to prefix list on %s", - __func__, ntopbuf, pfx->pfx_prefixlen, ifi->ifi_ifname); - - /* set other fields with protocol defaults */ - pfx->pfx_validlifetime = DEF_ADVVALIDLIFETIME; - pfx->pfx_preflifetime = DEF_ADVPREFERREDLIFETIME; - pfx->pfx_onlinkflg = 1; - pfx->pfx_autoconfflg = 1; - pfx->pfx_origin = PREFIX_FROM_KERNEL; - pfx->pfx_rainfo = rai; - - /* link into chain */ - TAILQ_INSERT_TAIL(&rai->rai_prefix, pfx, pfx_next); - - /* counter increment */ - rai->rai_pfxs++; - } - - freeifaddrs(ifap); -} - -static void -makeentry(char *buf, size_t len, int id, const char *string) -{ - - if (id < 0) - strlcpy(buf, string, len); - else - snprintf(buf, len, "%s%d", string, id); -} - -/* - * Add a prefix to the list of specified interface and reconstruct - * the outgoing packet. - * The prefix must not be in the list. - * XXX: other parameters of the prefix (e.g. lifetime) should be - * able to be specified. - */ -static void -add_prefix(struct rainfo *rai, struct in6_prefixreq *ipr) -{ - struct prefix *pfx; - struct ifinfo *ifi; - char ntopbuf[INET6_ADDRSTRLEN]; - - ifi = rai->rai_ifinfo; - ELM_MALLOC(pfx, return); - pfx->pfx_prefix = ipr->ipr_prefix.sin6_addr; - pfx->pfx_prefixlen = ipr->ipr_plen; - pfx->pfx_validlifetime = ipr->ipr_vltime; - pfx->pfx_preflifetime = ipr->ipr_pltime; - pfx->pfx_onlinkflg = ipr->ipr_raf_onlink; - pfx->pfx_autoconfflg = ipr->ipr_raf_auto; - pfx->pfx_origin = PREFIX_FROM_DYNAMIC; - pfx->pfx_rainfo = rai; - - TAILQ_INSERT_TAIL(&rai->rai_prefix, pfx, pfx_next); - - syslog(LOG_DEBUG, "<%s> new prefix %s/%d was added on %s", - __func__, - inet_ntop(AF_INET6, &ipr->ipr_prefix.sin6_addr, ntopbuf, - sizeof(ntopbuf)), ipr->ipr_plen, ifi->ifi_ifname); - - rai->rai_pfxs++; -} - -/* - * Delete a prefix to the list of specified interface and reconstruct - * the outgoing packet. - * The prefix must be in the list. - */ -void -delete_prefix(struct prefix *pfx) -{ - struct rainfo *rai; - struct ifinfo *ifi; - char ntopbuf[INET6_ADDRSTRLEN]; - - rai = pfx->pfx_rainfo; - ifi = rai->rai_ifinfo; - TAILQ_REMOVE(&rai->rai_prefix, pfx, pfx_next); - syslog(LOG_DEBUG, "<%s> prefix %s/%d was deleted on %s", - __func__, - inet_ntop(AF_INET6, &pfx->pfx_prefix, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_prefixlen, ifi->ifi_ifname); - if (pfx->pfx_timer) - rtadvd_remove_timer(pfx->pfx_timer); - free(pfx); - - rai->rai_pfxs--; -} - -void -invalidate_prefix(struct prefix *pfx) -{ - struct timespec timo; - struct rainfo *rai; - struct ifinfo *ifi; - char ntopbuf[INET6_ADDRSTRLEN]; - - rai = pfx->pfx_rainfo; - ifi = rai->rai_ifinfo; - if (pfx->pfx_timer) { /* sanity check */ - syslog(LOG_ERR, - "<%s> assumption failure: timer already exists", - __func__); - exit(1); - } - - syslog(LOG_DEBUG, "<%s> prefix %s/%d was invalidated on %s, " - "will expire in %ld seconds", __func__, - inet_ntop(AF_INET6, &pfx->pfx_prefix, ntopbuf, sizeof(ntopbuf)), - pfx->pfx_prefixlen, ifi->ifi_ifname, (long)prefix_timo); - - /* set the expiration timer */ - pfx->pfx_timer = rtadvd_add_timer(prefix_timeout, NULL, pfx, NULL); - if (pfx->pfx_timer == NULL) { - syslog(LOG_ERR, "<%s> failed to add a timer for a prefix. " - "remove the prefix", __func__); - delete_prefix(pfx); - } - timo.tv_sec = prefix_timo; - timo.tv_nsec = 0; - rtadvd_set_timer(&timo, pfx->pfx_timer); -} - -static struct rtadvd_timer * -prefix_timeout(void *arg) -{ - - delete_prefix((struct prefix *)arg); - - return (NULL); -} - -void -update_prefix(struct prefix *pfx) -{ - struct rainfo *rai; - struct ifinfo *ifi; - char ntopbuf[INET6_ADDRSTRLEN]; - - rai = pfx->pfx_rainfo; - ifi = rai->rai_ifinfo; - if (pfx->pfx_timer == NULL) { /* sanity check */ - syslog(LOG_ERR, - "<%s> assumption failure: timer does not exist", - __func__); - exit(1); - } - - syslog(LOG_DEBUG, "<%s> prefix %s/%d was re-enabled on %s", - __func__, inet_ntop(AF_INET6, &pfx->pfx_prefix, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_prefixlen, ifi->ifi_ifname); - - /* stop the expiration timer */ - rtadvd_remove_timer(pfx->pfx_timer); - pfx->pfx_timer = NULL; -} - -/* - * Try to get an in6_prefixreq contents for a prefix which matches - * ipr->ipr_prefix and ipr->ipr_plen and belongs to - * the interface whose name is ipr->ipr_name[]. - */ -static int -init_prefix(struct in6_prefixreq *ipr) -{ -#if 0 - int s; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "<%s> socket: %s", __func__, - strerror(errno)); - exit(1); - } - - if (ioctl(s, SIOCGIFPREFIX_IN6, (caddr_t)ipr) < 0) { - syslog(LOG_INFO, "<%s> ioctl:SIOCGIFPREFIX %s", __func__, - strerror(errno)); - - ipr->ipr_vltime = DEF_ADVVALIDLIFETIME; - ipr->ipr_pltime = DEF_ADVPREFERREDLIFETIME; - ipr->ipr_raf_onlink = 1; - ipr->ipr_raf_auto = 1; - /* omit other field initialization */ - } - else if (ipr->ipr_origin < PR_ORIG_RR) { - char ntopbuf[INET6_ADDRSTRLEN]; - - syslog(LOG_WARNING, "<%s> Added prefix(%s)'s origin %d is" - "lower than PR_ORIG_RR(router renumbering)." - "This should not happen if I am router", __func__, - inet_ntop(AF_INET6, &ipr->ipr_prefix.sin6_addr, ntopbuf, - sizeof(ntopbuf)), ipr->ipr_origin); - close(s); - return (1); - } - - close(s); - return (0); -#else - ipr->ipr_vltime = DEF_ADVVALIDLIFETIME; - ipr->ipr_pltime = DEF_ADVPREFERREDLIFETIME; - ipr->ipr_raf_onlink = 1; - ipr->ipr_raf_auto = 1; - return (0); -#endif -} - -void -make_prefix(struct rainfo *rai, int ifindex, struct in6_addr *addr, int plen) -{ - struct in6_prefixreq ipr; - - memset(&ipr, 0, sizeof(ipr)); - if (if_indextoname(ifindex, ipr.ipr_name) == NULL) { - syslog(LOG_ERR, "<%s> Prefix added interface No.%d doesn't " - "exist. This should not happen! %s", __func__, - ifindex, strerror(errno)); - exit(1); - } - ipr.ipr_prefix.sin6_len = sizeof(ipr.ipr_prefix); - ipr.ipr_prefix.sin6_family = AF_INET6; - ipr.ipr_prefix.sin6_addr = *addr; - ipr.ipr_plen = plen; - - if (init_prefix(&ipr)) - return; /* init failed by some error */ - add_prefix(rai, &ipr); -} - -void -make_packet(struct rainfo *rai) -{ - size_t packlen, lladdroptlen = 0; - char *buf; - struct nd_router_advert *ra; - struct nd_opt_prefix_info *ndopt_pi; - struct nd_opt_mtu *ndopt_mtu; - struct nd_opt_route_info *ndopt_rti; - struct rtinfo *rti; - struct nd_opt_rdnss *ndopt_rdnss; - struct rdnss *rdn; - struct nd_opt_dnssl *ndopt_dnssl; - struct dnssl *dns; - size_t len; - struct prefix *pfx; - struct ifinfo *ifi; - - ifi = rai->rai_ifinfo; - /* calculate total length */ - packlen = sizeof(struct nd_router_advert); - if (rai->rai_advlinkopt) { - if ((lladdroptlen = lladdropt_length(&ifi->ifi_sdl)) == 0) { - syslog(LOG_INFO, - "<%s> link-layer address option has" - " null length on %s. Treat as not included.", - __func__, ifi->ifi_ifname); - rai->rai_advlinkopt = 0; - } - packlen += lladdroptlen; - } - if (rai->rai_pfxs) - packlen += sizeof(struct nd_opt_prefix_info) * rai->rai_pfxs; - if (rai->rai_linkmtu) - packlen += sizeof(struct nd_opt_mtu); - - TAILQ_FOREACH(rti, &rai->rai_route, rti_next) - packlen += sizeof(struct nd_opt_route_info) + - ((rti->rti_prefixlen + 0x3f) >> 6) * 8; - - TAILQ_FOREACH(rdn, &rai->rai_rdnss, rd_next) { - struct rdnss_addr *rdna; - - packlen += sizeof(struct nd_opt_rdnss); - TAILQ_FOREACH(rdna, &rdn->rd_list, ra_next) - packlen += sizeof(rdna->ra_dns); - } - TAILQ_FOREACH(dns, &rai->rai_dnssl, dn_next) { - struct dnssl_addr *dnsa; - - packlen += sizeof(struct nd_opt_dnssl); - len = 0; - TAILQ_FOREACH(dnsa, &dns->dn_list, da_next) - len += dnsa->da_len; - - /* A zero octet and 8 octet boundary */ - len++; - len += (len % 8) ? 8 - len % 8 : 0; - - packlen += len; - } - /* allocate memory for the packet */ - if ((buf = malloc(packlen)) == NULL) { - syslog(LOG_ERR, - "<%s> can't get enough memory for an RA packet", - __func__); - exit(1); - } - memset(buf, 0, packlen); - if (rai->rai_ra_data) /* Free old data if any. */ - free(rai->rai_ra_data); - rai->rai_ra_data = buf; - /* XXX: what if packlen > 576? */ - rai->rai_ra_datalen = packlen; - - /* - * construct the packet - */ - ra = (struct nd_router_advert *)buf; - ra->nd_ra_type = ND_ROUTER_ADVERT; - ra->nd_ra_code = 0; - ra->nd_ra_cksum = 0; - ra->nd_ra_curhoplimit = (uint8_t)(0xff & rai->rai_hoplimit); - ra->nd_ra_flags_reserved = 0; /* just in case */ - /* - * XXX: the router preference field, which is a 2-bit field, should be - * initialized before other fields. - */ - ra->nd_ra_flags_reserved = 0xff & rai->rai_rtpref; - ra->nd_ra_flags_reserved |= - rai->rai_managedflg ? ND_RA_FLAG_MANAGED : 0; - ra->nd_ra_flags_reserved |= - rai->rai_otherflg ? ND_RA_FLAG_OTHER : 0; - ra->nd_ra_router_lifetime = htons(rai->rai_lifetime); - ra->nd_ra_reachable = htonl(rai->rai_reachabletime); - ra->nd_ra_retransmit = htonl(rai->rai_retranstimer); - buf += sizeof(*ra); - - if (rai->rai_advlinkopt) { - lladdropt_fill(&ifi->ifi_sdl, (struct nd_opt_hdr *)buf); - buf += lladdroptlen; - } - - if (rai->rai_linkmtu) { - ndopt_mtu = (struct nd_opt_mtu *)buf; - ndopt_mtu->nd_opt_mtu_type = ND_OPT_MTU; - ndopt_mtu->nd_opt_mtu_len = 1; - ndopt_mtu->nd_opt_mtu_reserved = 0; - ndopt_mtu->nd_opt_mtu_mtu = htonl(rai->rai_linkmtu); - buf += sizeof(struct nd_opt_mtu); - } - - TAILQ_FOREACH(pfx, &rai->rai_prefix, pfx_next) { - uint32_t vltime, pltime; - struct timespec now; - - ndopt_pi = (struct nd_opt_prefix_info *)buf; - ndopt_pi->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION; - ndopt_pi->nd_opt_pi_len = 4; - ndopt_pi->nd_opt_pi_prefix_len = pfx->pfx_prefixlen; - ndopt_pi->nd_opt_pi_flags_reserved = 0; - if (pfx->pfx_onlinkflg) - ndopt_pi->nd_opt_pi_flags_reserved |= - ND_OPT_PI_FLAG_ONLINK; - if (pfx->pfx_autoconfflg) - ndopt_pi->nd_opt_pi_flags_reserved |= - ND_OPT_PI_FLAG_AUTO; - if (pfx->pfx_timer) - vltime = 0; - else { - if (pfx->pfx_vltimeexpire || pfx->pfx_pltimeexpire) - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - if (pfx->pfx_vltimeexpire == 0) - vltime = pfx->pfx_validlifetime; - else - vltime = ((time_t)pfx->pfx_vltimeexpire > now.tv_sec) ? - pfx->pfx_vltimeexpire - now.tv_sec : 0; - } - if (pfx->pfx_timer) - pltime = 0; - else { - if (pfx->pfx_pltimeexpire == 0) - pltime = pfx->pfx_preflifetime; - else - pltime = ((time_t)pfx->pfx_pltimeexpire > now.tv_sec) ? - pfx->pfx_pltimeexpire - now.tv_sec : 0; - } - if (vltime < pltime) { - /* - * this can happen if vltime is decrement but pltime - * is not. - */ - pltime = vltime; - } - ndopt_pi->nd_opt_pi_valid_time = htonl(vltime); - ndopt_pi->nd_opt_pi_preferred_time = htonl(pltime); - ndopt_pi->nd_opt_pi_reserved2 = 0; - ndopt_pi->nd_opt_pi_prefix = pfx->pfx_prefix; - - buf += sizeof(struct nd_opt_prefix_info); - } - - TAILQ_FOREACH(rti, &rai->rai_route, rti_next) { - uint8_t psize = (rti->rti_prefixlen + 0x3f) >> 6; - - ndopt_rti = (struct nd_opt_route_info *)buf; - ndopt_rti->nd_opt_rti_type = ND_OPT_ROUTE_INFO; - ndopt_rti->nd_opt_rti_len = 1 + psize; - ndopt_rti->nd_opt_rti_prefixlen = rti->rti_prefixlen; - ndopt_rti->nd_opt_rti_flags = 0xff & rti->rti_rtpref; - ndopt_rti->nd_opt_rti_lifetime = htonl(rti->rti_ltime); - memcpy(ndopt_rti + 1, &rti->rti_prefix, psize * 8); - buf += sizeof(struct nd_opt_route_info) + psize * 8; - } - - TAILQ_FOREACH(rdn, &rai->rai_rdnss, rd_next) { - struct rdnss_addr *rdna; - - ndopt_rdnss = (struct nd_opt_rdnss *)buf; - ndopt_rdnss->nd_opt_rdnss_type = ND_OPT_RDNSS; - ndopt_rdnss->nd_opt_rdnss_len = 0; - ndopt_rdnss->nd_opt_rdnss_reserved = 0; - ndopt_rdnss->nd_opt_rdnss_lifetime = htonl(rdn->rd_ltime); - buf += sizeof(struct nd_opt_rdnss); - - TAILQ_FOREACH(rdna, &rdn->rd_list, ra_next) { - memcpy(buf, &rdna->ra_dns, sizeof(rdna->ra_dns)); - buf += sizeof(rdna->ra_dns); - } - /* Length field should be in 8 octets */ - ndopt_rdnss->nd_opt_rdnss_len = (buf - (char *)ndopt_rdnss) / 8; - - syslog(LOG_DEBUG, "<%s>: nd_opt_dnss_len = %d", __func__, - ndopt_rdnss->nd_opt_rdnss_len); - } - - TAILQ_FOREACH(dns, &rai->rai_dnssl, dn_next) { - struct dnssl_addr *dnsa; - - ndopt_dnssl = (struct nd_opt_dnssl *)buf; - ndopt_dnssl->nd_opt_dnssl_type = ND_OPT_DNSSL; - ndopt_dnssl->nd_opt_dnssl_len = 0; - ndopt_dnssl->nd_opt_dnssl_reserved = 0; - ndopt_dnssl->nd_opt_dnssl_lifetime = htonl(dns->dn_ltime); - buf += sizeof(*ndopt_dnssl); - - TAILQ_FOREACH(dnsa, &dns->dn_list, da_next) { - memcpy(buf, dnsa->da_dom, dnsa->da_len); - buf += dnsa->da_len; - } - - /* A zero octet after encoded DNS server list. */ - *buf++ = '\0'; - - /* Padding to next 8 octets boundary */ - len = buf - (char *)ndopt_dnssl; - len += (len % 8) ? 8 - len % 8 : 0; - buf = (char *)ndopt_dnssl + len; - - /* Length field must be in 8 octets */ - ndopt_dnssl->nd_opt_dnssl_len = len / 8; - - syslog(LOG_DEBUG, "<%s>: nd_opt_dnssl_len = %d", __func__, - ndopt_dnssl->nd_opt_dnssl_len); - } - return; -} diff --git a/usr.sbin/rtadvd/config.h b/usr.sbin/rtadvd/config.h deleted file mode 100644 index 219390b..0000000 --- a/usr.sbin/rtadvd/config.h +++ /dev/null @@ -1,53 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: config.h,v 1.8 2003/06/17 08:26:22 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -extern struct ifinfo *getconfig(struct ifinfo *); -extern int rm_ifinfo(struct ifinfo *); -extern int rm_ifinfo_index(int); -extern int rm_rainfo(struct rainfo *); -extern int loadconfig_ifname(char *); -extern int loadconfig_index(int); -extern void delete_prefix(struct prefix *); -extern void invalidate_prefix(struct prefix *); -extern void update_prefix(struct prefix *); -extern void make_prefix(struct rainfo *, int, struct in6_addr *, int); -extern void make_packet(struct rainfo *); -extern void get_prefix(struct rainfo *); - -/* - * it is highly unlikely to have 100 prefix information options, - * so it should be okay to limit it - */ -#define MAXPREFIX 100 -#define MAXROUTE 100 -#define MAXRDNSSENT 100 -#define MAXDNSSLENT 100 diff --git a/usr.sbin/rtadvd/control.c b/usr.sbin/rtadvd/control.c deleted file mode 100644 index fc6d536..0000000 --- a/usr.sbin/rtadvd/control.c +++ /dev/null @@ -1,492 +0,0 @@ -/*- - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -#include <sys/queue.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/un.h> -#include <sys/uio.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <netinet/in.h> -#include <netinet/icmp6.h> -#include <fcntl.h> -#include <errno.h> -#include <netdb.h> -#include <unistd.h> -#include <poll.h> -#include <signal.h> -#include <string.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <syslog.h> - -#include "rtadvd.h" -#include "if.h" -#include "pathnames.h" -#include "control.h" - -#define CM_RECV_TIMEOUT 30 - -int -cm_recv(int fd, char *buf) -{ - ssize_t n; - struct ctrl_msg_hdr *cm; - char *msg; - struct pollfd pfds[1]; - int i; - - syslog(LOG_DEBUG, "<%s> enter, fd=%d", __func__, fd); - - memset(buf, 0, CM_MSG_MAXLEN); - cm = (struct ctrl_msg_hdr *)buf; - msg = (char *)buf + sizeof(*cm); - - pfds[0].fd = fd; - pfds[0].events = POLLIN; - - for (;;) { - i = poll(pfds, sizeof(pfds)/sizeof(pfds[0]), - CM_RECV_TIMEOUT); - - if (i == 0) - continue; - - if (i < 0) { - syslog(LOG_ERR, "<%s> poll error: %s", - __func__, strerror(errno)); - continue; - } - - if (pfds[0].revents & POLLIN) { - n = read(fd, cm, sizeof(*cm)); - if (n < 0 && errno == EAGAIN) { - syslog(LOG_DEBUG, - "<%s> waiting...", __func__); - continue; - } - break; - } - } - - if (n != (ssize_t)sizeof(*cm)) { - syslog(LOG_WARNING, - "<%s> received a too small message.", __func__); - goto cm_recv_err; - } - if (cm->cm_len > CM_MSG_MAXLEN) { - syslog(LOG_WARNING, - "<%s> received a too large message.", __func__); - goto cm_recv_err; - } - if (cm->cm_version != CM_VERSION) { - syslog(LOG_WARNING, - "<%s> version mismatch", __func__); - goto cm_recv_err; - } - if (cm->cm_type >= CM_TYPE_MAX) { - syslog(LOG_WARNING, - "<%s> invalid msg type.", __func__); - goto cm_recv_err; - } - - syslog(LOG_DEBUG, - "<%s> ctrl msg received: type=%d", __func__, - cm->cm_type); - - if (cm->cm_len > sizeof(*cm)) { - size_t msglen = cm->cm_len - sizeof(*cm); - - syslog(LOG_DEBUG, - "<%s> ctrl msg has payload (len=%zu)", __func__, - msglen); - - for (;;) { - i = poll(pfds, sizeof(pfds)/sizeof(pfds[0]), - CM_RECV_TIMEOUT); - - if (i == 0) - continue; - - if (i < 0) { - syslog(LOG_ERR, "<%s> poll error: %s", - __func__, strerror(errno)); - continue; - } - - if (pfds[0].revents & POLLIN) { - n = read(fd, msg, msglen); - if (n < 0 && errno == EAGAIN) { - syslog(LOG_DEBUG, - "<%s> waiting...", __func__); - continue; - } - } - break; - } - if (n != (ssize_t)msglen) { - syslog(LOG_WARNING, - "<%s> payload size mismatch.", __func__); - goto cm_recv_err; - } - buf[CM_MSG_MAXLEN - 1] = '\0'; - } - - return (0); - -cm_recv_err: - close(fd); - return (-1); -} - -int -cm_send(int fd, char *buf) -{ - struct iovec iov[2]; - int iovcnt; - ssize_t len; - ssize_t iov_len_total; - struct ctrl_msg_hdr *cm; - char *msg; - - cm = (struct ctrl_msg_hdr *)buf; - msg = (char *)buf + sizeof(*cm); - - iovcnt = 1; - iov[0].iov_base = cm; - iov[0].iov_len = sizeof(*cm); - iov_len_total = iov[0].iov_len; - if (cm->cm_len > sizeof(*cm)) { - iovcnt++; - iov[1].iov_base = msg; - iov[1].iov_len = cm->cm_len - iov[0].iov_len; - iov_len_total += iov[1].iov_len; - } - - syslog(LOG_DEBUG, - "<%s> ctrl msg send: type=%d, count=%d, total_len=%zd", __func__, - cm->cm_type, iovcnt, iov_len_total); - - len = writev(fd, iov, iovcnt); - syslog(LOG_DEBUG, - "<%s> ctrl msg send: length=%zd", __func__, len); - - if (len == -1) { - syslog(LOG_DEBUG, - "<%s> write failed: (%d)%s", __func__, errno, - strerror(errno)); - close(fd); - return (-1); - } - - syslog(LOG_DEBUG, - "<%s> write length = %zd (actual)", __func__, len); - syslog(LOG_DEBUG, - "<%s> write length = %zd (expected)", __func__, iov_len_total); - - if (len != iov_len_total) { - close(fd); - return (-1); - } - - return (0); -} - -int -csock_accept(struct sockinfo *s) -{ - struct sockaddr_un sun; - int flags; - int fd; - - sun.sun_len = sizeof(sun); - if ((fd = accept(s->si_fd, (struct sockaddr *)&sun, - (socklen_t *)&sun.sun_len)) == -1) { - if (errno != EWOULDBLOCK && errno != EINTR) - syslog(LOG_WARNING, "<%s> accept ", __func__); - syslog(LOG_WARNING, "<%s> Xaccept: %s", __func__, strerror(errno)); - return (-1); - } - if ((flags = fcntl(fd, F_GETFL, 0)) == -1) { - syslog(LOG_WARNING, "<%s> fcntl F_GETFL", __func__); - close(s->si_fd); - return (-1); - } - if ((flags = fcntl(fd, F_SETFL, flags | O_NONBLOCK)) == -1) { - syslog(LOG_WARNING, "<%s> fcntl F_SETFL", __func__); - return (-1); - } - syslog(LOG_DEBUG, "<%s> accept connfd=%d, listenfd=%d", __func__, - fd, s->si_fd); - - return (fd); -} - -int -csock_close(struct sockinfo *s) -{ - close(s->si_fd); - unlink(s->si_name); - syslog(LOG_DEBUG, "<%s> remove %s", __func__, s->si_name); - return (0); -} - -int -csock_listen(struct sockinfo *s) -{ - if (s->si_fd == -1) { - syslog(LOG_ERR, "<%s> listen failed", __func__); - return (-1); - } - if (listen(s->si_fd, SOCK_BACKLOG) == -1) { - syslog(LOG_ERR, "<%s> listen failed", __func__); - return (-1); - } - - return (0); -} - -int -csock_open(struct sockinfo *s, mode_t mode) -{ - int flags; - struct sockaddr_un sun; - mode_t old_umask; - - if (s == NULL) { - syslog(LOG_ERR, "<%s> internal error.", __func__); - exit(1); - } - if (s->si_name == NULL) - s->si_name = _PATH_CTRL_SOCK; - - if ((s->si_fd = socket(PF_UNIX, SOCK_STREAM, 0)) == -1) { - syslog(LOG_ERR, - "<%s> cannot open control socket", __func__); - return (-1); - } - memset(&sun, 0, sizeof(sun)); - sun.sun_family = AF_UNIX; - sun.sun_len = sizeof(sun); - strlcpy(sun.sun_path, s->si_name, sizeof(sun.sun_path)); - - if (unlink(s->si_name) == -1) - if (errno != ENOENT) { - syslog(LOG_ERR, - "<%s> unlink %s", __func__, s->si_name); - close(s->si_fd); - return (-1); - } - old_umask = umask(S_IXUSR|S_IXGRP|S_IXOTH); - if (bind(s->si_fd, (struct sockaddr *)&sun, sizeof(sun)) == -1) { - syslog(LOG_ERR, - "<%s> bind failed: %s", __func__, s->si_name); - close(s->si_fd); - umask(old_umask); - return (-1); - } - umask(old_umask); - if (chmod(s->si_name, mode) == -1) { - syslog(LOG_ERR, - "<%s> chmod failed: %s", __func__, s->si_name); - goto csock_open_err; - } - if ((flags = fcntl(s->si_fd, F_GETFL, 0)) == -1) { - syslog(LOG_ERR, - "<%s> fcntl F_GETFL failed: %s", __func__, s->si_name); - goto csock_open_err; - } - if ((flags = fcntl(s->si_fd, F_SETFL, flags | O_NONBLOCK)) == -1) { - syslog(LOG_ERR, - "<%s> fcntl F_SETFL failed: %s", __func__, s->si_name); - goto csock_open_err; - } - - return (s->si_fd); - -csock_open_err: - close(s->si_fd); - unlink(s->si_name); - return (-1); -} - -struct ctrl_msg_pl * -cm_bin2pl(char *str, struct ctrl_msg_pl *cp) -{ - size_t len; - size_t *lenp; - char *p; - - memset(cp, 0, sizeof(*cp)); - - p = str; - - lenp = (size_t *)p; - len = *lenp++; - p = (char *)lenp; - syslog(LOG_DEBUG, "<%s> len(ifname) = %zu", __func__, len); - if (len > 0) { - cp->cp_ifname = malloc(len + 1); - if (cp->cp_ifname == NULL) { - syslog(LOG_ERR, "<%s> malloc", __func__); - exit(1); - } - memcpy(cp->cp_ifname, p, len); - cp->cp_ifname[len] = '\0'; - p += len; - } - - lenp = (size_t *)p; - len = *lenp++; - p = (char *)lenp; - syslog(LOG_DEBUG, "<%s> len(key) = %zu", __func__, len); - if (len > 0) { - cp->cp_key = malloc(len + 1); - if (cp->cp_key == NULL) { - syslog(LOG_ERR, "<%s> malloc", __func__); - exit(1); - } - memcpy(cp->cp_key, p, len); - cp->cp_key[len] = '\0'; - p += len; - } - - lenp = (size_t *)p; - len = *lenp++; - p = (char *)lenp; - syslog(LOG_DEBUG, "<%s> len(val) = %zu", __func__, len); - if (len > 0) { - cp->cp_val = malloc(len + 1); - if (cp->cp_val == NULL) { - syslog(LOG_ERR, "<%s> malloc", __func__); - exit(1); - } - memcpy(cp->cp_val, p, len); - cp->cp_val[len] = '\0'; - cp->cp_val_len = len; - } else - cp->cp_val_len = 0; - - return (cp); -} - -size_t -cm_pl2bin(char *str, struct ctrl_msg_pl *cp) -{ - size_t len; - size_t *lenp; - char *p; - struct ctrl_msg_hdr *cm; - - len = sizeof(size_t); - if (cp->cp_ifname != NULL) - len += strlen(cp->cp_ifname); - len += sizeof(size_t); - if (cp->cp_key != NULL) - len += strlen(cp->cp_key); - len += sizeof(size_t); - if (cp->cp_val != NULL && cp->cp_val_len > 0) - len += cp->cp_val_len; - - if (len > CM_MSG_MAXLEN - sizeof(*cm)) { - syslog(LOG_DEBUG, "<%s> msg too long (len=%zu)", - __func__, len); - return (0); - } - syslog(LOG_DEBUG, "<%s> msglen=%zu", __func__, len); - memset(str, 0, len); - p = str; - lenp = (size_t *)p; - - if (cp->cp_ifname != NULL) { - *lenp++ = strlen(cp->cp_ifname); - p = (char *)lenp; - memcpy(p, cp->cp_ifname, strlen(cp->cp_ifname)); - p += strlen(cp->cp_ifname); - } else { - *lenp++ = '\0'; - p = (char *)lenp; - } - - lenp = (size_t *)p; - if (cp->cp_key != NULL) { - *lenp++ = strlen(cp->cp_key); - p = (char *)lenp; - memcpy(p, cp->cp_key, strlen(cp->cp_key)); - p += strlen(cp->cp_key); - } else { - *lenp++ = '\0'; - p = (char *)lenp; - } - - lenp = (size_t *)p; - if (cp->cp_val != NULL && cp->cp_val_len > 0) { - *lenp++ = cp->cp_val_len; - p = (char *)lenp; - memcpy(p, cp->cp_val, cp->cp_val_len); - p += cp->cp_val_len; - } else { - *lenp++ = '\0'; - p = (char *)lenp; - } - - return (len); -} - -size_t -cm_str2bin(char *bin, void *str, size_t len) -{ - struct ctrl_msg_hdr *cm; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (len > CM_MSG_MAXLEN - sizeof(*cm)) { - syslog(LOG_DEBUG, "<%s> msg too long (len=%zu)", - __func__, len); - return (0); - } - syslog(LOG_DEBUG, "<%s> msglen=%zu", __func__, len); - memcpy(bin, (char *)str, len); - - return (len); -} - -void * -cm_bin2str(char *bin, void *str, size_t len) -{ - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - memcpy((char *)str, bin, len); - - return (str); -} diff --git a/usr.sbin/rtadvd/control.h b/usr.sbin/rtadvd/control.h deleted file mode 100644 index 2168302..0000000 --- a/usr.sbin/rtadvd/control.h +++ /dev/null @@ -1,74 +0,0 @@ -/*- - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -#define SOCK_BACKLOG 5 - -#define CM_MSG_MAXLEN 8192 -#define CM_VERSION 1 -#define CM_VERSION_STR "1.0" - -#define CM_TYPE_EOM 0 -#define CM_TYPE_ACK 1 -#define CM_TYPE_ERR 2 -#define CM_TYPE_NUL 3 -#define CM_TYPE_REQ_SET_PROP 4 -#define CM_TYPE_REQ_GET_PROP 5 -#define CM_TYPE_MAX 6 - -#define CM_STATE_EOM 0 -#define CM_STATE_INIT 1 -#define CM_STATE_MSG_DISPATCH 2 -#define CM_STATE_MSG_RECV 3 -#define CM_STATE_ACK_WAIT 4 - -struct ctrl_msg_hdr { - int cm_version; - size_t cm_len; - int cm_type; -}; - -struct ctrl_msg_pl { - char *cp_ifname; - char *cp_key; - - size_t cp_val_len; - char *cp_val; -}; - -int csock_open(struct sockinfo *, mode_t); -int csock_close(struct sockinfo *); -int csock_listen(struct sockinfo *); -int csock_accept(struct sockinfo *); -int cm_send(int, char *); -int cm_recv(int, char *); - -size_t cm_pl2bin(char *, struct ctrl_msg_pl *); -struct ctrl_msg_pl *cm_bin2pl(char *, struct ctrl_msg_pl *); -size_t cm_str2bin(char *, void *, size_t); -void *cm_bin2str(char *, void *, size_t); diff --git a/usr.sbin/rtadvd/control_client.c b/usr.sbin/rtadvd/control_client.c deleted file mode 100644 index ca5cb68..0000000 --- a/usr.sbin/rtadvd/control_client.c +++ /dev/null @@ -1,133 +0,0 @@ -/*- - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -#include <sys/queue.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/un.h> -#include <sys/uio.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <netinet/in.h> -#include <netinet/icmp6.h> -#include <fcntl.h> -#include <errno.h> -#include <netdb.h> -#include <unistd.h> -#include <signal.h> -#include <string.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <syslog.h> - -#include "pathnames.h" -#include "rtadvd.h" -#include "if.h" -#include "control.h" -#include "control_client.h" - -int -cm_handler_client(int fd, int state, char *buf_orig) -{ - char buf[CM_MSG_MAXLEN]; - struct ctrl_msg_hdr *cm; - struct ctrl_msg_hdr *cm_orig; - int error; - char *msg; - char *msg_orig; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - memset(buf, 0, sizeof(buf)); - cm = (struct ctrl_msg_hdr *)buf; - cm_orig = (struct ctrl_msg_hdr *)buf_orig; - msg = (char *)buf + sizeof(*cm); - msg_orig = (char *)buf_orig + sizeof(*cm_orig); - - if (cm_orig->cm_len > CM_MSG_MAXLEN) { - syslog(LOG_DEBUG, "<%s> msg too long", __func__); - close(fd); - return (-1); - } - cm->cm_type = cm_orig->cm_type; - if (cm_orig->cm_len > sizeof(*cm_orig)) { - memcpy(msg, msg_orig, cm_orig->cm_len - sizeof(*cm)); - cm->cm_len = cm_orig->cm_len; - } - while (state != CM_STATE_EOM) { - syslog(LOG_DEBUG, "<%s> state = %d", __func__, state); - - switch (state) { - case CM_STATE_INIT: - state = CM_STATE_EOM; - break; - case CM_STATE_MSG_DISPATCH: - cm->cm_version = CM_VERSION; - error = cm_send(fd, buf); - if (error) { - syslog(LOG_WARNING, - "<%s> cm_send()", __func__); - return (-1); - } - state = CM_STATE_ACK_WAIT; - break; - case CM_STATE_ACK_WAIT: - error = cm_recv(fd, buf); - if (error) { - syslog(LOG_ERR, - "<%s> cm_recv()", __func__); - close(fd); - return (-1); - } - switch (cm->cm_type) { - case CM_TYPE_ACK: - syslog(LOG_DEBUG, - "<%s> CM_TYPE_ACK", __func__); - break; - case CM_TYPE_ERR: - syslog(LOG_DEBUG, - "<%s> CM_TYPE_ERR", __func__); - close(fd); - return (-1); - default: - syslog(LOG_DEBUG, - "<%s> unknown status", __func__); - close(fd); - return (-1); - } - memcpy(buf_orig, buf, cm->cm_len); - state = CM_STATE_EOM; - break; - } - } - close(fd); - return (0); -} diff --git a/usr.sbin/rtadvd/control_client.h b/usr.sbin/rtadvd/control_client.h deleted file mode 100644 index 2f50f17..0000000 --- a/usr.sbin/rtadvd/control_client.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -int cm_handler_client(int, int, char *); diff --git a/usr.sbin/rtadvd/control_server.c b/usr.sbin/rtadvd/control_server.c deleted file mode 100644 index 76ca541..0000000 --- a/usr.sbin/rtadvd/control_server.c +++ /dev/null @@ -1,752 +0,0 @@ -/*- - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -#include <sys/queue.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/un.h> -#include <sys/uio.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <netinet/in.h> -#include <netinet/icmp6.h> -#include <fcntl.h> -#include <errno.h> -#include <netdb.h> -#include <unistd.h> -#include <signal.h> -#include <string.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <syslog.h> - -#include "pathnames.h" -#include "rtadvd.h" -#include "if.h" -#include "config.h" -#include "control.h" -#include "control_server.h" -#include "timer.h" - -static char *do_reload_ifname; -static int do_reload; -static int do_shutdown; - -void set_do_reload(int sig __unused) { do_reload = 1; } -void set_do_reload_ifname(char *ifname){ do_reload_ifname = ifname; } -void set_do_shutdown(int sig __unused) { do_shutdown = 1; } -void reset_do_reload(void) { do_reload = 0; do_reload_ifname = NULL; } -void reset_do_shutdown(void) { do_shutdown = 0; } -int is_do_reload(void) { return (do_reload); } -int is_do_shutdown(void) { return (do_shutdown); } -char *reload_ifname(void) { return (do_reload_ifname); } - -#define DEF_PL_HANDLER(key) { #key, cm_getprop_##key } - -static int cm_getprop_echo(struct ctrl_msg_pl *); -static int cm_getprop_version(struct ctrl_msg_pl *); -static int cm_getprop_ifilist(struct ctrl_msg_pl *); -static int cm_getprop_ifi(struct ctrl_msg_pl *); -static int cm_getprop_ifi_ra_timer(struct ctrl_msg_pl *); -static int cm_getprop_rai(struct ctrl_msg_pl *); -static int cm_getprop_pfx(struct ctrl_msg_pl *); -static int cm_getprop_rdnss(struct ctrl_msg_pl *); -static int cm_getprop_dnssl(struct ctrl_msg_pl *); -static int cm_getprop_rti(struct ctrl_msg_pl *); - -static int cm_setprop_reload(struct ctrl_msg_pl *); -static int cm_setprop_enable(struct ctrl_msg_pl *); -static int cm_setprop_disable(struct ctrl_msg_pl *); - -static struct dispatch_table { - const char *dt_comm; - int (*dt_act)(struct ctrl_msg_pl *cp); -} getprop_dtable[] = { - { "", cm_getprop_echo }, - DEF_PL_HANDLER(echo), - DEF_PL_HANDLER(version), - DEF_PL_HANDLER(ifilist), - DEF_PL_HANDLER(ifi), - DEF_PL_HANDLER(ifi_ra_timer), - DEF_PL_HANDLER(rai), - DEF_PL_HANDLER(rti), - DEF_PL_HANDLER(pfx), - DEF_PL_HANDLER(rdnss), - DEF_PL_HANDLER(dnssl), -}; - -static int -cm_getprop_echo(struct ctrl_msg_pl *cp) -{ - - syslog(LOG_DEBUG, "<%s> enter", __func__); - cp->cp_val = strdup(""); - cp->cp_val_len = strlen(cp->cp_val) + 1; - - return (0); -} - -static int -cm_getprop_version(struct ctrl_msg_pl *cp) -{ - - syslog(LOG_DEBUG, "<%s> enter", __func__); - cp->cp_val = strdup(CM_VERSION_STR); - cp->cp_val_len = strlen(cp->cp_val) + 1; - - return (0); -} - -static int -cm_getprop_ifilist(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - len = 0; - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - len += strlen(ifi->ifi_ifname) + 1; - } - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - p = malloc(len); - if (p == NULL) - exit(1); - memset(p, 0, len); - cp->cp_val = p; - - if (len > 0) - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - syslog(LOG_DEBUG, "<%s> add ifname=%s(%d)", - __func__, ifi->ifi_ifname, ifi->ifi_ifindex); - strcpy(p, ifi->ifi_ifname); - p += strlen(ifi->ifi_ifname) + 1; - } - cp->cp_val_len = p - cp->cp_val; - - return (0); -} - -static int -cm_getprop_ifi(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - - p = malloc(sizeof(*ifi)); - if (p == NULL) - exit(1); - len = cm_str2bin(p, ifi, sizeof(*ifi)); - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - if (len == 0) - return (1); - - cp->cp_val = p; - cp->cp_val_len = len; - - return (0); -} - -static int -cm_getprop_rai(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if ((rai = ifi->ifi_rainfo) == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - - p = malloc(sizeof(*rai)); - if (p == NULL) - exit(1); - len = cm_str2bin(p, rai, sizeof(*rai)); - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - if (len == 0) - return (1); - - cp->cp_val = p; - cp->cp_val_len = len; - - return (0); -} - -static int -cm_getprop_ifi_ra_timer(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct rtadvd_timer *rtimer; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if ((rai = ifi->ifi_rainfo) == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - if ((rtimer = ifi->ifi_ra_timer) == NULL) { - syslog(LOG_ERR, "<%s> %s has no ifi_ra_timer", __func__, - cp->cp_ifname); - return (1); - } - p = malloc(sizeof(*rtimer)); - if (p == NULL) - exit(1); - len = cm_str2bin(p, rtimer, sizeof(*rtimer)); - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - if (len == 0) - return (1); - - cp->cp_val = p; - cp->cp_val_len = len; - - return (0); -} - -static int -cm_getprop_rti(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct rtinfo *rti; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - len = 0; - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if (ifi->ifi_rainfo == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - rai = ifi->ifi_rainfo; - TAILQ_FOREACH(rti, &rai->rai_route, rti_next) { - len += sizeof(*rti); - } - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - p = malloc(len); - if (p == NULL) - exit(1); - memset(p, 0, len); - cp->cp_val = p; - - if (len > 0) - TAILQ_FOREACH(rti, &rai->rai_route, rti_next) { - memcpy(p, rti, sizeof(*rti)); - p += sizeof(*rti); - } - cp->cp_val_len = p - cp->cp_val; - - return (0); -} - -static int -cm_getprop_pfx(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct prefix *pfx; - char *p; - size_t len; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - len = 0; - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if (ifi->ifi_rainfo == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - rai = ifi->ifi_rainfo; - TAILQ_FOREACH(pfx, &rai->rai_prefix, pfx_next) { - len += sizeof(*pfx); - } - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - p = malloc(len); - if (p == NULL) - exit(1); - memset(p, 0, len); - cp->cp_val = p; - - if (len > 0) - TAILQ_FOREACH(pfx, &rai->rai_prefix, pfx_next) { - memcpy(p, pfx, sizeof(*pfx)); - p += sizeof(*pfx); - } - cp->cp_val_len = p - cp->cp_val; - - return (0); -} - -static int -cm_getprop_rdnss(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct rdnss *rdn; - struct rdnss_addr *rda; - char *p; - size_t len; - uint16_t *rdn_cnt; - uint16_t *rda_cnt; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - len = 0; - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if (ifi->ifi_rainfo == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - rai = ifi->ifi_rainfo; - - len = sizeof(*rdn_cnt); - TAILQ_FOREACH(rdn, &rai->rai_rdnss, rd_next) { - len += sizeof(*rdn); - len += sizeof(*rda_cnt); - TAILQ_FOREACH(rda, &rdn->rd_list, ra_next) { - len += sizeof(*rda); - } - } - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - p = malloc(len); - if (p == NULL) - exit(1); - memset(p, 0, len); - cp->cp_val = p; - - rdn_cnt = (uint16_t *)p; - p += sizeof(*rdn_cnt); - TAILQ_FOREACH(rdn, &rai->rai_rdnss, rd_next) { - *rdn_cnt += 1; - memcpy(p, rdn, sizeof(*rdn)); - p += sizeof(*rdn); - - rda_cnt = (uint16_t *)p; - p += sizeof(*rda_cnt); - TAILQ_FOREACH(rda, &rdn->rd_list, ra_next) { - *rda_cnt += 1; - memcpy(p, rda, sizeof(*rda)); - p += sizeof(*rda); - } - } - syslog(LOG_DEBUG, "<%s> rdn_cnt = %d", __func__, *rdn_cnt); - cp->cp_val_len = p - cp->cp_val; - - return (0); -} - -static int -cm_getprop_dnssl(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct dnssl *dns; - struct dnssl_addr *dna; - char *p; - size_t len; - uint16_t *dns_cnt; - uint16_t *dna_cnt; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - len = 0; - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - if (ifi->ifi_rainfo == NULL) { - syslog(LOG_ERR, "<%s> %s has no rainfo", __func__, - cp->cp_ifname); - return (1); - } - rai = ifi->ifi_rainfo; - - len = sizeof(*dns_cnt); - TAILQ_FOREACH(dns, &rai->rai_dnssl, dn_next) { - len += sizeof(*dns); - len += sizeof(*dna_cnt); - TAILQ_FOREACH(dna, &dns->dn_list, da_next) { - len += sizeof(*dna); - } - } - - syslog(LOG_DEBUG, "<%s> len = %zu", __func__, len); - - p = malloc(len); - if (p == NULL) - exit(1); - memset(p, 0, len); - cp->cp_val = p; - - dns_cnt = (uint16_t *)cp->cp_val; - p += sizeof(*dns_cnt); - TAILQ_FOREACH(dns, &rai->rai_dnssl, dn_next) { - (*dns_cnt)++; - memcpy(p, dns, sizeof(*dns)); - p += sizeof(*dns); - - dna_cnt = (uint16_t *)p; - p += sizeof(*dna_cnt); - TAILQ_FOREACH(dna, &dns->dn_list, da_next) { - (*dna_cnt)++; - memcpy(p, dna, sizeof(*dna)); - p += sizeof(*dna); - } - } - cp->cp_val_len = p - cp->cp_val; - - return (0); -} - -int -cm_getprop(struct ctrl_msg_pl *cp) -{ - size_t i; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (cp == NULL) - return (1); - - for (i = 0; - i < sizeof(getprop_dtable) / sizeof(getprop_dtable[0]); - i++) { - if (strcmp(cp->cp_key, getprop_dtable[i].dt_comm) == 0) - return (getprop_dtable[i].dt_act(cp)); - } - return (1); -} - -int -cm_setprop(struct ctrl_msg_pl *cp) -{ - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (cp == NULL || cp->cp_key == NULL) - return (1); - - if (strncmp(cp->cp_key, "reload", sizeof("reload")) == 0) - cm_setprop_reload(cp); - else if (strncmp(cp->cp_key, "shutdown", sizeof("shutdown")) == 0) - set_do_shutdown(0); - else if (strncmp(cp->cp_key, "enable", sizeof("enable")) == 0) - cm_setprop_enable(cp); - else if (strncmp(cp->cp_key, "disable", sizeof("disable")) == 0) - cm_setprop_disable(cp); - else if (strncmp(cp->cp_key, "echo", 8) == 0) - ; /* do nothing */ - else - return (1); - - return (0); -} - -static int -cm_setprop_reload(struct ctrl_msg_pl *cp) -{ - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - set_do_reload_ifname(cp->cp_ifname); - set_do_reload(1); - - return (0); -} - -static int -cm_setprop_enable(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - - ifi->ifi_persist = 1; - set_do_reload_ifname(ifi->ifi_ifname); - set_do_reload(0); - - return (0); -} - -static int -cm_setprop_disable(struct ctrl_msg_pl *cp) -{ - struct ifinfo *ifi; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (strcmp(cp->cp_ifname, ifi->ifi_ifname) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> %s not found", __func__, - cp->cp_ifname); - return (1); - } - - if (ifi->ifi_persist == 1) { - ifi->ifi_persist = 0; - rm_ifinfo(ifi); - - /* MC leaving needed here */ - sock_mc_leave(&sock, ifi->ifi_ifindex); - - set_do_reload_ifname(ifi->ifi_ifname); - set_do_reload(0); - } - - return (0); -} - -int -cm_handler_server(int fd) -{ - int state; - char *msg; - struct ctrl_msg_hdr *cm; - struct ctrl_msg_pl cp; - char buf[CM_MSG_MAXLEN]; - char pbuf[CM_MSG_MAXLEN]; - int error; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - memset(buf, 0, sizeof(buf)); - memset(pbuf, 0, sizeof(pbuf)); - cm = (struct ctrl_msg_hdr *)buf; - msg = (char *)buf + sizeof(*cm); - - state = CM_STATE_INIT; - while (state != CM_STATE_EOM) { - syslog(LOG_DEBUG, "<%s> state = %d", __func__, state); - - switch (state) { - case CM_STATE_INIT: - state = CM_STATE_MSG_RECV; - break; - case CM_STATE_MSG_DISPATCH: - cm->cm_version = CM_VERSION; - error = cm_send(fd, buf); - if (error) - syslog(LOG_WARNING, - "<%s> cm_send()", __func__); - state = CM_STATE_EOM; - break; - case CM_STATE_ACK_WAIT: - error = cm_recv(fd, buf); - if (error) { - syslog(LOG_ERR, - "<%s> cm_recv()", __func__); - close(fd); - return (-1); - } - - switch (cm->cm_type) { - case CM_TYPE_ACK: - break; - case CM_TYPE_ERR: - syslog(LOG_DEBUG, - "<%s> CM_TYPE_ERR", __func__); - close(fd); - return (-1); - default: - syslog(LOG_DEBUG, - "<%s> unknown status", __func__); - close(fd); - return (-1); - } - state = CM_STATE_EOM; - break; - case CM_STATE_MSG_RECV: - error = cm_recv(fd, buf); - - if (error) { - syslog(LOG_ERR, - "<%s> cm_recv()", __func__); - close(fd); - return (-1); - } - memset(&cp, 0, sizeof(cp)); - - syslog(LOG_DEBUG, - "<%s> cm->cm_type = %d", __func__, cm->cm_type); - syslog(LOG_DEBUG, - "<%s> cm->cm_len = %zu", __func__, cm->cm_len); - - switch (cm->cm_type) { - case CM_TYPE_EOM: - state = CM_STATE_EOM; - case CM_TYPE_NUL: - cm->cm_type = CM_TYPE_ACK; - cm->cm_len = sizeof(*cm); - break; - case CM_TYPE_REQ_GET_PROP: - cm_bin2pl(msg, &cp); - error = cm_getprop(&cp); - if (error) { - cm->cm_type = CM_TYPE_ERR; - cm->cm_len = sizeof(*cm); - } else { - cm->cm_type = CM_TYPE_ACK; - cm->cm_len = sizeof(*cm); - cm->cm_len += cm_pl2bin(msg, &cp); - } - if (cp.cp_val != NULL) - free(cp.cp_val); - break; - case CM_TYPE_REQ_SET_PROP: - cm_bin2pl(msg, &cp); - error = cm_setprop(&cp); - if (error) { - cm->cm_type = CM_TYPE_ERR; - cm->cm_len = sizeof(*cm); - } else { - cm->cm_type = CM_TYPE_ACK; - cm->cm_len = sizeof(*cm); - } - break; - default: - cm->cm_type = CM_TYPE_ERR; - cm->cm_len = sizeof(*cm); - } - - switch (cm->cm_type) { - case CM_TYPE_ERR: - case CM_TYPE_ACK: - state = CM_STATE_MSG_DISPATCH; - break; - } - } - } - syslog(LOG_DEBUG, "<%s> leave", __func__); - - return (0); -} diff --git a/usr.sbin/rtadvd/control_server.h b/usr.sbin/rtadvd/control_server.h deleted file mode 100644 index 76fe9cd..0000000 --- a/usr.sbin/rtadvd/control_server.h +++ /dev/null @@ -1,42 +0,0 @@ -/*- - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR - * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ - * - */ - -int cm_getprop(struct ctrl_msg_pl *); -int cm_setprop(struct ctrl_msg_pl *); - -int cm_handler_server(int); - -void set_do_reload(int); -void set_do_reload_ifname(char *); -void set_do_shutdown(int); -void reset_do_reload(void); -void reset_do_shutdown(void); -int is_do_reload(void); -char *reload_ifname(void); -int is_do_shutdown(void); diff --git a/usr.sbin/rtadvd/if.c b/usr.sbin/rtadvd/if.c deleted file mode 100644 index dc6ac8e..0000000 --- a/usr.sbin/rtadvd/if.c +++ /dev/null @@ -1,748 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: if.c,v 1.17 2001/01/21 15:27:30 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/sysctl.h> -#include <sys/ioctl.h> -#include <net/if.h> -#include <net/if_dl.h> -#include <net/if_types.h> -#include <net/ethernet.h> -#include <net/route.h> -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/ip6.h> -#include <netinet/icmp6.h> -#include <netinet6/nd6.h> -#include <unistd.h> -#include <errno.h> -#include <netdb.h> -#include <stdlib.h> -#include <string.h> -#include <syslog.h> - -#include "pathnames.h" -#include "rtadvd.h" -#include "if.h" - -#define ROUNDUP(a, size) \ - (((a) & ((size)-1)) ? (1 + ((a) | ((size)-1))) : (a)) - -#define NEXT_SA(ap) \ - (ap) = (struct sockaddr *)((caddr_t)(ap) + \ - ((ap)->sa_len ? ROUNDUP((ap)->sa_len, sizeof(u_long)) : \ - sizeof(u_long))) - -struct sockaddr_in6 sin6_linklocal_allnodes = { - .sin6_len = sizeof(sin6_linklocal_allnodes), - .sin6_family = AF_INET6, - .sin6_addr = IN6ADDR_LINKLOCAL_ALLNODES_INIT, -}; - -struct sockaddr_in6 sin6_linklocal_allrouters = { - .sin6_len = sizeof(sin6_linklocal_allrouters), - .sin6_family = AF_INET6, - .sin6_addr = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT, -}; - -struct sockaddr_in6 sin6_sitelocal_allrouters = { - .sin6_len = sizeof(sin6_sitelocal_allrouters), - .sin6_family = AF_INET6, - .sin6_addr = IN6ADDR_SITELOCAL_ALLROUTERS_INIT, -}; - -struct sockinfo sock = { .si_fd = -1, .si_name = NULL }; -struct sockinfo rtsock = { .si_fd = -1, .si_name = NULL }; -struct sockinfo ctrlsock = { .si_fd = -1, .si_name = _PATH_CTRL_SOCK }; - -char *mcastif; - -static void get_rtaddrs(int, struct sockaddr *, - struct sockaddr **); -static struct if_msghdr *get_next_msghdr(struct if_msghdr *, - struct if_msghdr *); - -static void -get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info) -{ - int i; - - for (i = 0; i < RTAX_MAX; i++) { - if (addrs & (1 << i)) { - rti_info[i] = sa; - NEXT_SA(sa); - } - else - rti_info[i] = NULL; - } -} - -#define ROUNDUP8(a) (1 + (((a) - 1) | 7)) -int -lladdropt_length(struct sockaddr_dl *sdl) -{ - switch (sdl->sdl_type) { - case IFT_ETHER: - return (ROUNDUP8(ETHER_ADDR_LEN + 2)); - default: - return (0); - } -} - -void -lladdropt_fill(struct sockaddr_dl *sdl, struct nd_opt_hdr *ndopt) -{ - char *addr; - - ndopt->nd_opt_type = ND_OPT_SOURCE_LINKADDR; /* fixed */ - - switch (sdl->sdl_type) { - case IFT_ETHER: - ndopt->nd_opt_len = (ROUNDUP8(ETHER_ADDR_LEN + 2)) >> 3; - addr = (char *)(ndopt + 1); - memcpy(addr, LLADDR(sdl), ETHER_ADDR_LEN); - break; - default: - syslog(LOG_ERR, "<%s> unsupported link type(%d)", - __func__, sdl->sdl_type); - exit(1); - } - - return; -} - -int -rtbuf_len(void) -{ - size_t len; - int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET6, NET_RT_DUMP, 0}; - - if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) - return (-1); - - return (len); -} - -#define FILTER_MATCH(type, filter) ((0x1 << type) & filter) -#define SIN6(s) ((struct sockaddr_in6 *)(s)) -#define SDL(s) ((struct sockaddr_dl *)(s)) -char * -get_next_msg(char *buf, char *lim, int ifindex, size_t *lenp, int filter) -{ - struct rt_msghdr *rtm; - struct ifa_msghdr *ifam; - struct sockaddr *sa, *dst, *gw, *ifa, *rti_info[RTAX_MAX]; - - *lenp = 0; - for (rtm = (struct rt_msghdr *)buf; - rtm < (struct rt_msghdr *)lim; - rtm = (struct rt_msghdr *)(((char *)rtm) + rtm->rtm_msglen)) { - /* just for safety */ - if (!rtm->rtm_msglen) { - syslog(LOG_WARNING, "<%s> rtm_msglen is 0 " - "(buf=%p lim=%p rtm=%p)", __func__, - buf, lim, rtm); - break; - } - if (((struct rt_msghdr *)buf)->rtm_version != RTM_VERSION) { - syslog(LOG_WARNING, - "<%s> routing message version mismatch " - "(buf=%p lim=%p rtm=%p)", __func__, - buf, lim, rtm); - continue; - } - - if (FILTER_MATCH(rtm->rtm_type, filter) == 0) - continue; - - switch (rtm->rtm_type) { - case RTM_GET: - case RTM_ADD: - case RTM_DELETE: - /* address related checks */ - sa = (struct sockaddr *)(rtm + 1); - get_rtaddrs(rtm->rtm_addrs, sa, rti_info); - if ((dst = rti_info[RTAX_DST]) == NULL || - dst->sa_family != AF_INET6) - continue; - - if (IN6_IS_ADDR_LINKLOCAL(&SIN6(dst)->sin6_addr) || - IN6_IS_ADDR_MULTICAST(&SIN6(dst)->sin6_addr)) - continue; - - if ((gw = rti_info[RTAX_GATEWAY]) == NULL || - gw->sa_family != AF_LINK) - continue; - if (ifindex && SDL(gw)->sdl_index != ifindex) - continue; - - if (rti_info[RTAX_NETMASK] == NULL) - continue; - - /* found */ - *lenp = rtm->rtm_msglen; - return (char *)rtm; - /* NOTREACHED */ - case RTM_NEWADDR: - case RTM_DELADDR: - ifam = (struct ifa_msghdr *)rtm; - - /* address related checks */ - sa = (struct sockaddr *)(ifam + 1); - get_rtaddrs(ifam->ifam_addrs, sa, rti_info); - if ((ifa = rti_info[RTAX_IFA]) == NULL || - (ifa->sa_family != AF_INET && - ifa->sa_family != AF_INET6)) - continue; - - if (ifa->sa_family == AF_INET6 && - (IN6_IS_ADDR_LINKLOCAL(&SIN6(ifa)->sin6_addr) || - IN6_IS_ADDR_MULTICAST(&SIN6(ifa)->sin6_addr))) - continue; - - if (ifindex && ifam->ifam_index != ifindex) - continue; - - /* found */ - *lenp = ifam->ifam_msglen; - return (char *)rtm; - /* NOTREACHED */ - case RTM_IFINFO: - case RTM_IFANNOUNCE: - /* found */ - *lenp = rtm->rtm_msglen; - return (char *)rtm; - /* NOTREACHED */ - } - } - - return ((char *)rtm); -} -#undef FILTER_MATCH - -struct in6_addr * -get_addr(char *buf) -{ - struct rt_msghdr *rtm = (struct rt_msghdr *)buf; - struct sockaddr *sa, *rti_info[RTAX_MAX]; - - sa = (struct sockaddr *)(rtm + 1); - get_rtaddrs(rtm->rtm_addrs, sa, rti_info); - - return (&SIN6(rti_info[RTAX_DST])->sin6_addr); -} - -int -get_rtm_ifindex(char *buf) -{ - struct rt_msghdr *rtm = (struct rt_msghdr *)buf; - struct sockaddr *sa, *rti_info[RTAX_MAX]; - - sa = (struct sockaddr *)(rtm + 1); - get_rtaddrs(rtm->rtm_addrs, sa, rti_info); - - return (((struct sockaddr_dl *)rti_info[RTAX_GATEWAY])->sdl_index); -} - -int -get_prefixlen(char *buf) -{ - struct rt_msghdr *rtm = (struct rt_msghdr *)buf; - struct sockaddr *sa, *rti_info[RTAX_MAX]; - char *p, *lim; - - sa = (struct sockaddr *)(rtm + 1); - get_rtaddrs(rtm->rtm_addrs, sa, rti_info); - sa = rti_info[RTAX_NETMASK]; - - p = (char *)(&SIN6(sa)->sin6_addr); - lim = (char *)sa + sa->sa_len; - return prefixlen(p, lim); -} - -int -prefixlen(unsigned char *p, unsigned char *lim) -{ - int masklen; - - for (masklen = 0; p < lim; p++) { - switch (*p) { - case 0xff: - masklen += 8; - break; - case 0xfe: - masklen += 7; - break; - case 0xfc: - masklen += 6; - break; - case 0xf8: - masklen += 5; - break; - case 0xf0: - masklen += 4; - break; - case 0xe0: - masklen += 3; - break; - case 0xc0: - masklen += 2; - break; - case 0x80: - masklen += 1; - break; - case 0x00: - break; - default: - return (-1); - } - } - - return (masklen); -} - -struct ifinfo * -update_persist_ifinfo(struct ifilist_head_t *ifi_head, const char *ifname) -{ - struct ifinfo *ifi; - int ifindex; - - ifi = NULL; - ifindex = if_nametoindex(ifname); - TAILQ_FOREACH(ifi, ifi_head, ifi_next) { - if (ifindex != 0) { - if (ifindex == ifi->ifi_ifindex) - break; - } else { - if (strncmp(ifname, ifi->ifi_ifname, - sizeof(ifi->ifi_ifname)) == 0) - break; - } - } - - if (ifi == NULL) { - /* A new ifinfo element is needed. */ - syslog(LOG_DEBUG, "<%s> new entry: %s", __func__, - ifname); - - ELM_MALLOC(ifi, exit(1)); - ifi->ifi_ifindex = 0; - strlcpy(ifi->ifi_ifname, ifname, sizeof(ifi->ifi_ifname)); - ifi->ifi_rainfo = NULL; - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - TAILQ_INSERT_TAIL(ifi_head, ifi, ifi_next); - } - - ifi->ifi_persist = 1; - - syslog(LOG_DEBUG, "<%s> %s is marked PERSIST", __func__, - ifi->ifi_ifname); - syslog(LOG_DEBUG, "<%s> %s is state = %d", __func__, - ifi->ifi_ifname, ifi->ifi_state); - return (ifi); -} - -int -update_ifinfo_nd_flags(struct ifinfo *ifi) -{ - struct in6_ndireq nd; - int s; - int error; - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, - "<%s> socket() failed.", __func__); - return (1); - } - /* ND flags */ - memset(&nd, 0, sizeof(nd)); - strlcpy(nd.ifname, ifi->ifi_ifname, - sizeof(nd.ifname)); - error = ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd); - if (error) { - close(s); - if (errno != EPFNOSUPPORT) - syslog(LOG_ERR, "<%s> ioctl() failed.", __func__); - return (1); - } - ifi->ifi_nd_flags = nd.ndi.flags; - close(s); - - return (0); -} - -struct ifinfo * -update_ifinfo(struct ifilist_head_t *ifi_head, int ifindex) -{ - struct if_msghdr *ifm; - struct ifinfo *ifi = NULL; - struct sockaddr *sa; - struct sockaddr *rti_info[RTAX_MAX]; - char *msg; - size_t len; - char *lim; - int mib[] = { CTL_NET, PF_ROUTE, 0, AF_INET6, NET_RT_IFLIST, 0 }; - int error; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), NULL, &len, NULL, 0) < - 0) { - syslog(LOG_ERR, - "<%s> sysctl: NET_RT_IFLIST size get failed", __func__); - exit(1); - } - if ((msg = malloc(len)) == NULL) { - syslog(LOG_ERR, "<%s> malloc failed", __func__); - exit(1); - } - if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), msg, &len, NULL, 0) < - 0) { - syslog(LOG_ERR, - "<%s> sysctl: NET_RT_IFLIST get failed", __func__); - exit(1); - } - - lim = msg + len; - for (ifm = (struct if_msghdr *)msg; - ifm != NULL && ifm < (struct if_msghdr *)lim; - ifm = get_next_msghdr(ifm,(struct if_msghdr *)lim)) { - int ifi_new; - - syslog(LOG_DEBUG, "<%s> ifm = %p, lim = %p, diff = %zu", - __func__, ifm, lim, (char *)lim - (char *)ifm); - - if (ifm->ifm_version != RTM_VERSION) { - syslog(LOG_ERR, - "<%s> ifm_vesrion mismatch", __func__); - exit(1); - } - if (ifm->ifm_msglen == 0) { - syslog(LOG_WARNING, - "<%s> ifm_msglen is 0", __func__); - free(msg); - return (NULL); - } - - ifi_new = 0; - if (ifm->ifm_type == RTM_IFINFO) { - struct ifreq ifr; - int s; - char ifname[IFNAMSIZ]; - - syslog(LOG_DEBUG, "<%s> RTM_IFINFO found. " - "ifm_index = %d, ifindex = %d", - __func__, ifm->ifm_index, ifindex); - - /* when ifindex is specified */ - if (ifindex != UPDATE_IFINFO_ALL && - ifindex != ifm->ifm_index) - continue; - - /* lookup an entry with the same ifindex */ - TAILQ_FOREACH(ifi, ifi_head, ifi_next) { - if (ifm->ifm_index == ifi->ifi_ifindex) - break; - if_indextoname(ifm->ifm_index, ifname); - if (strncmp(ifname, ifi->ifi_ifname, - sizeof(ifname)) == 0) - break; - } - if (ifi == NULL) { - syslog(LOG_DEBUG, - "<%s> new entry for idx=%d", - __func__, ifm->ifm_index); - ELM_MALLOC(ifi, exit(1)); - ifi->ifi_rainfo = NULL; - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - ifi->ifi_persist = 0; - ifi_new = 1; - } - /* ifindex */ - ifi->ifi_ifindex = ifm->ifm_index; - - /* ifname */ - if_indextoname(ifm->ifm_index, ifi->ifi_ifname); - if (ifi->ifi_ifname == NULL) { - syslog(LOG_WARNING, - "<%s> ifname not found (idx=%d)", - __func__, ifm->ifm_index); - if (ifi_new) - free(ifi); - continue; - } - - if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, - "<%s> socket() failed.", __func__); - if (ifi_new) - free(ifi); - continue; - } - - /* MTU */ - ifi->ifi_phymtu = ifm->ifm_data.ifi_mtu; - if (ifi->ifi_phymtu == 0) { - memset(&ifr, 0, sizeof(ifr)); - ifr.ifr_addr.sa_family = AF_INET6; - strlcpy(ifr.ifr_name, ifi->ifi_ifname, - sizeof(ifr.ifr_name)); - error = ioctl(s, SIOCGIFMTU, (caddr_t)&ifr); - if (error) { - close(s); - syslog(LOG_ERR, - "<%s> ioctl() failed.", - __func__); - if (ifi_new) - free(ifi); - continue; - } - ifi->ifi_phymtu = ifr.ifr_mtu; - if (ifi->ifi_phymtu == 0) { - syslog(LOG_WARNING, - "<%s> no interface mtu info" - " on %s. %d will be used.", - __func__, ifi->ifi_ifname, - IPV6_MMTU); - ifi->ifi_phymtu = IPV6_MMTU; - } - } - close(s); - - /* ND flags */ - error = update_ifinfo_nd_flags(ifi); - if (error) { - if (ifi_new) - free(ifi); - continue; - } - - /* SDL */ - sa = (struct sockaddr *)(ifm + 1); - get_rtaddrs(ifm->ifm_addrs, sa, rti_info); - if ((sa = rti_info[RTAX_IFP]) != NULL) { - if (sa->sa_family == AF_LINK) { - memcpy(&ifi->ifi_sdl, - (struct sockaddr_dl *)sa, - sizeof(ifi->ifi_sdl)); - } - } else - memset(&ifi->ifi_sdl, 0, - sizeof(ifi->ifi_sdl)); - - /* flags */ - ifi->ifi_flags = ifm->ifm_flags; - - /* type */ - ifi->ifi_type = ifm->ifm_type; - } else { - syslog(LOG_ERR, - "out of sync parsing NET_RT_IFLIST\n" - "expected %d, got %d\n msglen = %d\n", - RTM_IFINFO, ifm->ifm_type, ifm->ifm_msglen); - exit(1); - } - - if (ifi_new) { - syslog(LOG_DEBUG, - "<%s> adding %s(idx=%d) to ifilist", - __func__, ifi->ifi_ifname, ifi->ifi_ifindex); - TAILQ_INSERT_TAIL(ifi_head, ifi, ifi_next); - } - } - free(msg); - - if (mcastif != NULL) { - error = sock_mc_rr_update(&sock, mcastif); - if (error) - exit(1); - } - - return (ifi); -} - -static struct if_msghdr * -get_next_msghdr(struct if_msghdr *ifm, struct if_msghdr *lim) -{ - struct ifa_msghdr *ifam; - - for (ifam = (struct ifa_msghdr *)((char *)ifm + ifm->ifm_msglen); - ifam < (struct ifa_msghdr *)lim; - ifam = (struct ifa_msghdr *)((char *)ifam + ifam->ifam_msglen)) { - if (!ifam->ifam_msglen) { - syslog(LOG_WARNING, - "<%s> ifa_msglen is 0", __func__); - return (NULL); - } - if (ifam->ifam_type != RTM_NEWADDR) - break; - } - - return ((struct if_msghdr *)ifam); -} - -int -getinet6sysctl(int code) -{ - int mib[] = { CTL_NET, PF_INET6, IPPROTO_IPV6, 0 }; - int value; - size_t size; - - mib[3] = code; - size = sizeof(value); - if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &value, &size, NULL, 0) - < 0) { - syslog(LOG_ERR, "<%s>: failed to get ip6 sysctl(%d): %s", - __func__, code, - strerror(errno)); - return (-1); - } - else - return (value); -} - - -int -sock_mc_join(struct sockinfo *s, int ifindex) -{ - struct ipv6_mreq mreq; - char ifname[IFNAMSIZ]; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (ifindex == 0) - return (1); - - /* - * join all routers multicast address on each advertising - * interface. - */ - memset(&mreq, 0, sizeof(mreq)); - /* XXX */ - memcpy(&mreq.ipv6mr_multiaddr.s6_addr, - &sin6_linklocal_allrouters.sin6_addr, - sizeof(mreq.ipv6mr_multiaddr.s6_addr)); - - mreq.ipv6mr_interface = ifindex; - if (setsockopt(s->si_fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, - sizeof(mreq)) < 0) { - syslog(LOG_ERR, - "<%s> IPV6_JOIN_GROUP(link) on %s: %s", - __func__, if_indextoname(ifindex, ifname), - strerror(errno)); - return (1); - } - syslog(LOG_DEBUG, - "<%s> %s: join link-local all-routers MC group", - __func__, if_indextoname(ifindex, ifname)); - - return (0); -} - -int -sock_mc_leave(struct sockinfo *s, int ifindex) -{ - struct ipv6_mreq mreq; - char ifname[IFNAMSIZ]; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (ifindex == 0) - return (1); - - /* - * join all routers multicast address on each advertising - * interface. - */ - - memset(&mreq, 0, sizeof(mreq)); - /* XXX */ - memcpy(&mreq.ipv6mr_multiaddr.s6_addr, - &sin6_linklocal_allrouters.sin6_addr, - sizeof(mreq.ipv6mr_multiaddr.s6_addr)); - - mreq.ipv6mr_interface = ifindex; - if (setsockopt(s->si_fd, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq, - sizeof(mreq)) < 0) { - syslog(LOG_ERR, - "<%s> IPV6_JOIN_LEAVE(link) on %s: %s", - __func__, if_indextoname(ifindex, ifname), - strerror(errno)); - return (1); - } - syslog(LOG_DEBUG, - "<%s> %s: leave link-local all-routers MC group", - __func__, if_indextoname(ifindex, ifname)); - - return (0); -} - -int -sock_mc_rr_update(struct sockinfo *s, char *mif) -{ - struct ipv6_mreq mreq; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (mif == NULL) - return (1); - /* - * When attending router renumbering, join all-routers site-local - * multicast group. - */ - /* XXX */ - memcpy(&mreq.ipv6mr_multiaddr.s6_addr, - &sin6_sitelocal_allrouters.sin6_addr, - sizeof(mreq.ipv6mr_multiaddr.s6_addr)); - if ((mreq.ipv6mr_interface = if_nametoindex(mif)) == 0) { - syslog(LOG_ERR, - "<%s> invalid interface: %s", - __func__, mif); - return (1); - } - - if (setsockopt(s->si_fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, - &mreq, sizeof(mreq)) < 0) { - syslog(LOG_ERR, - "<%s> IPV6_JOIN_GROUP(site) on %s: %s", - __func__, mif, strerror(errno)); - return (1); - } - - syslog(LOG_DEBUG, - "<%s> %s: join site-local all-routers MC group", - __func__, mif); - - return (0); -} diff --git a/usr.sbin/rtadvd/if.h b/usr.sbin/rtadvd/if.h deleted file mode 100644 index 6efdd56..0000000 --- a/usr.sbin/rtadvd/if.h +++ /dev/null @@ -1,61 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: if.h,v 1.10 2003/02/24 11:29:10 ono Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#define UPDATE_IFINFO_ALL 0 - -struct sockinfo { - int si_fd; - const char *si_name; -}; - -extern struct sockinfo sock; -extern struct sockinfo rtsock; -extern struct sockinfo ctrlsock; - -int lladdropt_length(struct sockaddr_dl *); -void lladdropt_fill(struct sockaddr_dl *, struct nd_opt_hdr *); -int rtbuf_len(void); -char *get_next_msg(char *, char *, int, size_t *, int); -struct in6_addr *get_addr(char *); -int get_rtm_ifindex(char *); -int get_prefixlen(char *); -int prefixlen(unsigned char *, unsigned char *); - -struct ifinfo *update_ifinfo(struct ifilist_head_t *, int); -int update_ifinfo_nd_flags(struct ifinfo *); -struct ifinfo *update_persist_ifinfo(struct ifilist_head_t *, - const char *); - -int sock_mc_join(struct sockinfo *, int); -int sock_mc_leave(struct sockinfo *, int); -int sock_mc_rr_update(struct sockinfo *, char *); -int getinet6sysctl(int); diff --git a/usr.sbin/rtadvd/pathnames.h b/usr.sbin/rtadvd/pathnames.h deleted file mode 100644 index 248ee19..0000000 --- a/usr.sbin/rtadvd/pathnames.h +++ /dev/null @@ -1,6 +0,0 @@ -/* $KAME: pathnames.h,v 1.2 2000/05/16 13:34:13 itojun Exp $ */ -/* $FreeBSD$ */ - -#define _PATH_RTADVDCONF "/etc/rtadvd.conf" -#define _PATH_RTADVDPID "/var/run/rtadvd.pid" -#define _PATH_CTRL_SOCK "/var/run/rtadvd.sock" diff --git a/usr.sbin/rtadvd/rrenum.c b/usr.sbin/rtadvd/rrenum.c deleted file mode 100644 index eede4b6..0000000 --- a/usr.sbin/rtadvd/rrenum.c +++ /dev/null @@ -1,502 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: rrenum.c,v 1.12 2002/06/10 19:59:47 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#include <sys/types.h> -#include <sys/param.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/sysctl.h> - -#include <net/if.h> -#include <net/if_dl.h> -#include <net/route.h> -#include <netinet/in.h> -#include <netinet/in_var.h> -#include <netinet/icmp6.h> - -#include <arpa/inet.h> - -#include <errno.h> -#include <netdb.h> -#include <string.h> -#include <stdlib.h> -#include <time.h> -#include <syslog.h> -#include "rtadvd.h" -#include "rrenum.h" -#include "if.h" - -#define RR_ISSET_SEGNUM(segnum_bits, segnum) \ - ((((segnum_bits)[(segnum) >> 5]) & (1 << ((segnum) & 31))) != 0) -#define RR_SET_SEGNUM(segnum_bits, segnum) \ - (((segnum_bits)[(segnum) >> 5]) |= (1 << ((segnum) & 31))) - -struct rr_operation { - u_long rro_seqnum; - u_long rro_segnum_bits[8]; -}; - -static struct rr_operation rro; -static int rr_rcvifindex; -static int rrcmd2pco[RPM_PCO_MAX] = { - 0, - SIOCAIFPREFIX_IN6, - SIOCCIFPREFIX_IN6, - SIOCSGIFPREFIX_IN6 -}; -static int s = -1; - -/* - * Check validity of a Prefix Control Operation(PCO). - * return 0 on success, 1 on failure. - */ -static int -rr_pco_check(int len, struct rr_pco_match *rpm) -{ - struct rr_pco_use *rpu, *rpulim; - int checklen; - - /* rpm->rpm_len must be (4N * 3) as router-renum-05.txt */ - if ((rpm->rpm_len - 3) < 0 || /* must be at least 3 */ - (rpm->rpm_len - 3) & 0x3) { /* must be multiple of 4 */ - syslog(LOG_WARNING, "<%s> rpm_len %d is not 4N * 3", - __func__, rpm->rpm_len); - return (1); - } - /* rpm->rpm_code must be valid value */ - switch (rpm->rpm_code) { - case RPM_PCO_ADD: - case RPM_PCO_CHANGE: - case RPM_PCO_SETGLOBAL: - break; - default: - syslog(LOG_WARNING, "<%s> unknown rpm_code %d", __func__, - rpm->rpm_code); - return (1); - } - /* rpm->rpm_matchlen must be 0 to 128 inclusive */ - if (rpm->rpm_matchlen > 128) { - syslog(LOG_WARNING, "<%s> rpm_matchlen %d is over 128", - __func__, rpm->rpm_matchlen); - return (1); - } - - /* - * rpu->rpu_uselen, rpu->rpu_keeplen, and sum of them must be - * between 0 and 128 inclusive - */ - for (rpu = (struct rr_pco_use *)(rpm + 1), - rpulim = (struct rr_pco_use *)((char *)rpm + len); - rpu < rpulim; - rpu += 1) { - checklen = rpu->rpu_uselen; - checklen += rpu->rpu_keeplen; - /* - * omit these check, because either of rpu_uselen - * and rpu_keeplen is unsigned char - * (128 > rpu_uselen > 0) - * (128 > rpu_keeplen > 0) - * (rpu_uselen + rpu_keeplen > 0) - */ - if (checklen > 128) { - syslog(LOG_WARNING, "<%s> sum of rpu_uselen %d and" - " rpu_keeplen %d is %d(over 128)", - __func__, rpu->rpu_uselen, rpu->rpu_keeplen, - rpu->rpu_uselen + rpu->rpu_keeplen); - return (1); - } - } - return (0); -} - -static void -do_use_prefix(int len, struct rr_pco_match *rpm, - struct in6_rrenumreq *irr, int ifindex) -{ - struct rr_pco_use *rpu, *rpulim; - struct rainfo *rai; - struct ifinfo *ifi; - struct prefix *pfx; - - rpu = (struct rr_pco_use *)(rpm + 1); - rpulim = (struct rr_pco_use *)((char *)rpm + len); - - if (rpu == rpulim) { /* no use prefix */ - if (rpm->rpm_code == RPM_PCO_ADD) - return; - - irr->irr_u_uselen = 0; - irr->irr_u_keeplen = 0; - irr->irr_raf_mask_onlink = 0; - irr->irr_raf_mask_auto = 0; - irr->irr_vltime = 0; - irr->irr_pltime = 0; - memset(&irr->irr_flags, 0, sizeof(irr->irr_flags)); - irr->irr_useprefix.sin6_len = 0; /* let it mean, no addition */ - irr->irr_useprefix.sin6_family = 0; - irr->irr_useprefix.sin6_addr = in6addr_any; - if (ioctl(s, rrcmd2pco[rpm->rpm_code], (caddr_t)irr) < 0 && - errno != EADDRNOTAVAIL) - syslog(LOG_ERR, "<%s> ioctl: %s", __func__, - strerror(errno)); - return; - } - - for (rpu = (struct rr_pco_use *)(rpm + 1), - rpulim = (struct rr_pco_use *)((char *)rpm + len); - rpu < rpulim; - rpu += 1) { - /* init in6_rrenumreq fields */ - irr->irr_u_uselen = rpu->rpu_uselen; - irr->irr_u_keeplen = rpu->rpu_keeplen; - irr->irr_raf_mask_onlink = - !!(rpu->rpu_ramask & ICMP6_RR_PCOUSE_RAFLAGS_ONLINK); - irr->irr_raf_mask_auto = - !!(rpu->rpu_ramask & ICMP6_RR_PCOUSE_RAFLAGS_AUTO); - irr->irr_vltime = ntohl(rpu->rpu_vltime); - irr->irr_pltime = ntohl(rpu->rpu_pltime); - irr->irr_raf_onlink = - (rpu->rpu_raflags & ICMP6_RR_PCOUSE_RAFLAGS_ONLINK) == 0 ? - 0 : 1; - irr->irr_raf_auto = - (rpu->rpu_raflags & ICMP6_RR_PCOUSE_RAFLAGS_AUTO) == 0 ? - 0 : 1; - irr->irr_rrf_decrvalid = - (rpu->rpu_flags & ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME) == 0 ? - 0 : 1; - irr->irr_rrf_decrprefd = - (rpu->rpu_flags & ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME) == 0 ? - 0 : 1; - irr->irr_useprefix.sin6_len = sizeof(irr->irr_useprefix); - irr->irr_useprefix.sin6_family = AF_INET6; - irr->irr_useprefix.sin6_addr = rpu->rpu_prefix; - - if (ioctl(s, rrcmd2pco[rpm->rpm_code], (caddr_t)irr) < 0 && - errno != EADDRNOTAVAIL) - syslog(LOG_ERR, "<%s> ioctl: %s", __func__, - strerror(errno)); - - /* very adhoc: should be rewritten */ - if (rpm->rpm_code == RPM_PCO_CHANGE && - IN6_ARE_ADDR_EQUAL(&rpm->rpm_prefix, &rpu->rpu_prefix) && - rpm->rpm_matchlen == rpu->rpu_uselen && - rpu->rpu_uselen == rpu->rpu_keeplen) { - ifi = if_indextoifinfo(ifindex); - if (ifi == NULL || ifi->ifi_rainfo == NULL) - continue; /* non-advertising IF */ - rai = ifi->ifi_rainfo; - - TAILQ_FOREACH(pfx, &rai->rai_prefix, pfx_next) { - struct timespec now; - - if (prefix_match(&pfx->pfx_prefix, - pfx->pfx_prefixlen, &rpm->rpm_prefix, - rpm->rpm_matchlen)) { - /* change parameters */ - pfx->pfx_validlifetime = - ntohl(rpu->rpu_vltime); - pfx->pfx_preflifetime = - ntohl(rpu->rpu_pltime); - if (irr->irr_rrf_decrvalid) { - clock_gettime(CLOCK_MONOTONIC_FAST, - &now); - pfx->pfx_vltimeexpire = - now.tv_sec + - pfx->pfx_validlifetime; - } else - pfx->pfx_vltimeexpire = 0; - if (irr->irr_rrf_decrprefd) { - clock_gettime(CLOCK_MONOTONIC_FAST, - &now); - pfx->pfx_pltimeexpire = - now.tv_sec + - pfx->pfx_preflifetime; - } else - pfx->pfx_pltimeexpire = 0; - } - } - } - } -} - -/* - * process a Prefix Control Operation(PCO). - * return 0 on success, 1 on failure - */ -static int -do_pco(struct icmp6_router_renum *rr, int len, struct rr_pco_match *rpm) -{ - int ifindex = 0; - struct in6_rrenumreq irr; - struct ifinfo *ifi; - - if ((rr_pco_check(len, rpm) != 0)) - return (1); - - if (s == -1 && (s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "<%s> socket: %s", __func__, - strerror(errno)); - exit(1); - } - - memset(&irr, 0, sizeof(irr)); - irr.irr_origin = PR_ORIG_RR; - irr.irr_m_len = rpm->rpm_matchlen; - irr.irr_m_minlen = rpm->rpm_minlen; - irr.irr_m_maxlen = rpm->rpm_maxlen; - irr.irr_matchprefix.sin6_len = sizeof(irr.irr_matchprefix); - irr.irr_matchprefix.sin6_family = AF_INET6; - irr.irr_matchprefix.sin6_addr = rpm->rpm_prefix; - - while (if_indextoname(++ifindex, irr.irr_name)) { - ifi = if_indextoifinfo(ifindex); - if (ifi == NULL) { - syslog(LOG_ERR, "<%s> ifindex not found.", - __func__); - return (1); - } - /* - * if ICMP6_RR_FLAGS_FORCEAPPLY(A flag) is 0 and - * IFF_UP is off, the interface is not applied - */ - if ((rr->rr_flags & ICMP6_RR_FLAGS_FORCEAPPLY) == 0 && - (ifi->ifi_flags & IFF_UP) == 0) - continue; - /* TODO: interface scope check */ - do_use_prefix(len, rpm, &irr, ifindex); - } - if (errno == ENXIO) - return (0); - else if (errno) { - syslog(LOG_ERR, "<%s> if_indextoname: %s", __func__, - strerror(errno)); - return (1); - } - return (0); -} - -/* - * call do_pco() for each Prefix Control Operations(PCOs) in a received - * Router Renumbering Command packet. - * return 0 on success, 1 on failure - */ -static int -do_rr(int len, struct icmp6_router_renum *rr) -{ - struct rr_pco_match *rpm; - char *cp, *lim; - - lim = (char *)rr + len; - cp = (char *)(rr + 1); - len -= sizeof(struct icmp6_router_renum); - - update_ifinfo(&ifilist, UPDATE_IFINFO_ALL); - - while (cp < lim) { - int rpmlen; - - rpm = (struct rr_pco_match *)cp; - if ((size_t)len < sizeof(struct rr_pco_match)) { - tooshort: - syslog(LOG_ERR, "<%s> pkt too short. left len = %d. " - "garbage at end of pkt?", __func__, len); - return (1); - } - rpmlen = rpm->rpm_len << 3; - if (len < rpmlen) - goto tooshort; - - if (do_pco(rr, rpmlen, rpm)) { - syslog(LOG_WARNING, "<%s> invalid PCO", __func__); - goto next; - } - - next: - cp += rpmlen; - len -= rpmlen; - } - - return (0); -} - -/* - * check validity of a router renumbering command packet - * return 0 on success, 1 on failure - */ -static int -rr_command_check(int len, struct icmp6_router_renum *rr, struct in6_addr *from, - struct in6_addr *dst) -{ - u_char ntopbuf[INET6_ADDRSTRLEN]; - - /* omit rr minimal length check. hope kernel have done it. */ - /* rr_command length check */ - if ((size_t)len < (sizeof(struct icmp6_router_renum) + - sizeof(struct rr_pco_match))) { - syslog(LOG_ERR, "<%s> rr_command len %d is too short", - __func__, len); - return (1); - } - - /* destination check. only for multicast. omit unicast check. */ - if (IN6_IS_ADDR_MULTICAST(dst) && !IN6_IS_ADDR_MC_LINKLOCAL(dst) && - !IN6_IS_ADDR_MC_SITELOCAL(dst)) { - syslog(LOG_ERR, "<%s> dst mcast addr %s is illegal", - __func__, - inet_ntop(AF_INET6, dst, ntopbuf, sizeof(ntopbuf))); - return (1); - } - - /* seqnum and segnum check */ - if (rro.rro_seqnum > rr->rr_seqnum) { - syslog(LOG_WARNING, - "<%s> rcvd old seqnum %d from %s", - __func__, (u_int32_t)ntohl(rr->rr_seqnum), - inet_ntop(AF_INET6, from, ntopbuf, sizeof(ntopbuf))); - return (1); - } - if (rro.rro_seqnum == rr->rr_seqnum && - (rr->rr_flags & ICMP6_RR_FLAGS_TEST) == 0 && - RR_ISSET_SEGNUM(rro.rro_segnum_bits, rr->rr_segnum)) { - if ((rr->rr_flags & ICMP6_RR_FLAGS_REQRESULT) != 0) - syslog(LOG_WARNING, - "<%s> rcvd duped segnum %d from %s", - __func__, rr->rr_segnum, inet_ntop(AF_INET6, from, - ntopbuf, sizeof(ntopbuf))); - return (0); - } - - /* update seqnum */ - if (rro.rro_seqnum != rr->rr_seqnum) { - /* then must be "<" */ - - /* init rro_segnum_bits */ - memset(rro.rro_segnum_bits, 0, - sizeof(rro.rro_segnum_bits)); - } - rro.rro_seqnum = rr->rr_seqnum; - - return (0); -} - -static void -rr_command_input(int len, struct icmp6_router_renum *rr, - struct in6_addr *from, struct in6_addr *dst) -{ - /* rr_command validity check */ - if (rr_command_check(len, rr, from, dst)) - goto failed; - if ((rr->rr_flags & (ICMP6_RR_FLAGS_TEST|ICMP6_RR_FLAGS_REQRESULT)) == - ICMP6_RR_FLAGS_TEST) - return; - - /* do router renumbering */ - if (do_rr(len, rr)) - goto failed; - - /* update segnum */ - RR_SET_SEGNUM(rro.rro_segnum_bits, rr->rr_segnum); - - return; - - failed: - syslog(LOG_ERR, "<%s> received RR was invalid", __func__); - return; -} - -void -rr_input(int len, struct icmp6_router_renum *rr, struct in6_pktinfo *pi, - struct sockaddr_in6 *from, struct in6_addr *dst) -{ - u_char ntopbuf[2][INET6_ADDRSTRLEN], ifnamebuf[IFNAMSIZ]; - - syslog(LOG_DEBUG, - "<%s> RR received from %s to %s on %s", - __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf[0] ,sizeof(ntopbuf[0])), - inet_ntop(AF_INET6, &dst, ntopbuf[1], sizeof(ntopbuf[1])), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - - /* packet validation based on Section 4.1 of RFC2894 */ - if ((size_t)len < sizeof(struct icmp6_router_renum)) { - syslog(LOG_NOTICE, - "<%s>: RR short message (size %d) from %s to %s on %s", - __func__, len, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf[0], - sizeof(ntopbuf[0])), - inet_ntop(AF_INET6, &dst, ntopbuf[1], sizeof(ntopbuf[1])), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - - /* - * If the IPv6 destination address is neither an All Routers multicast - * address [AARCH] nor one of the receiving router's unicast addresses, - * the message MUST be discarded and SHOULD be logged to network - * management. - * We rely on the kernel input routine for unicast addresses, and thus - * check multicast destinations only. - */ - if (IN6_IS_ADDR_MULTICAST(&pi->ipi6_addr) && !IN6_ARE_ADDR_EQUAL( - &sin6_sitelocal_allrouters.sin6_addr, &pi->ipi6_addr)) { - syslog(LOG_NOTICE, - "<%s>: RR message with invalid destination (%s) " - "from %s on %s", - __func__, - inet_ntop(AF_INET6, &dst, ntopbuf[0], sizeof(ntopbuf[0])), - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf[1], - sizeof(ntopbuf[1])), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - - rr_rcvifindex = pi->ipi6_ifindex; - - switch (rr->rr_code) { - case ICMP6_ROUTER_RENUMBERING_COMMAND: - rr_command_input(len, rr, &from->sin6_addr, dst); - /* TODO: send reply msg */ - break; - case ICMP6_ROUTER_RENUMBERING_RESULT: - /* RESULT will be processed by rrenumd */ - break; - case ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET: - /* TODO: sequence number reset */ - break; - default: - syslog(LOG_ERR, "<%s> received unknown code %d", - __func__, rr->rr_code); - break; - - } - - return; -} diff --git a/usr.sbin/rtadvd/rrenum.h b/usr.sbin/rtadvd/rrenum.h deleted file mode 100644 index 2b20d59..0000000 --- a/usr.sbin/rtadvd/rrenum.h +++ /dev/null @@ -1,34 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: rrenum.h,v 1.3 2001/01/21 15:37:14 itojun Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -void rr_input(int, struct icmp6_router_renum *, struct in6_pktinfo *, - struct sockaddr_in6 *, struct in6_addr *); diff --git a/usr.sbin/rtadvd/rtadvd.8 b/usr.sbin/rtadvd/rtadvd.8 deleted file mode 100644 index fcb46fe..0000000 --- a/usr.sbin/rtadvd/rtadvd.8 +++ /dev/null @@ -1,242 +0,0 @@ -.\" $KAME: rtadvd.8,v 1.24 2002/05/31 16:16:08 jinmei Exp $ -.\" -.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of the project nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $FreeBSD$ -.\" -.Dd February 25, 2013 -.Dt RTADVD 8 -.Os -.Sh NAME -.Nm rtadvd -.Nd router advertisement daemon -.Sh SYNOPSIS -.Nm -.Op Fl dDfRs -.Op Fl c Ar configfile -.Op Fl C Ar ctlsock -.Op Fl M Ar ifname -.Op Fl p Ar pidfile -.Op Ar interface ... -.Sh DESCRIPTION -.Nm -sends router advertisement packets to the specified -.Ar interfaces . -If no interfaces are specified, -.Nm -will still run, but will not advertise any routes until interfaces are -added using -.Xr rtadvctl 8 . -.Pp -The program will daemonize itself on invocation. -It will then send router advertisement packets periodically, as well -as in response to router solicitation messages sent by end hosts. -.Pp -Router advertisements can be configured on a per-interface basis, as -described in -.Xr rtadvd.conf 5 . -.Pp -If there is no configuration file entry for an interface, -or if the configuration file does not exist altogether, -.Nm -sets all the parameters to their default values. -In particular, -.Nm -reads all the interface routes from the routing table and advertises -them as on-link prefixes. -.Pp -.Nm -also watches the routing table. -If an interface direct route is -added on an advertising interface and no static prefixes are -specified by the configuration file, -.Nm -adds the corresponding prefix to its advertising list. -.Pp -Similarly, when an interface direct route is deleted, -.Nm -will start advertising the prefixes with zero valid and preferred -lifetimes to help the receiving hosts switch to a new prefix when -renumbering. -Note, however, that the zero valid lifetime cannot invalidate the -autoconfigured addresses at a receiving host immediately. -According to the specification, the host will retain the address -for a certain period, which will typically be two hours. -The zero lifetimes rather intend to make the address deprecated, -indicating that a new non-deprecated address should be used as the -source address of a new connection. -This behavior will last for two hours. -Then -.Nm -will completely remove the prefix from the advertising list, -and succeeding advertisements will not contain the prefix information. -.Pp -Moreover, if the status of an advertising interface changes, -.Nm -will start or stop sending router advertisements according -to the latest status. -.Pp -The -.Fl s -option may be used to disable this behavior; -.Nm -will not watch the routing table and the whole functionality described -above will be suppressed. -.Pp -Basically, hosts MUST NOT send Router Advertisement messages at any -time (RFC 4861, Section 6.2.3). -However, it would sometimes be useful to allow hosts to advertise some -parameters such as prefix information and link MTU. -Thus, -.Nm -can be invoked if router lifetime is explicitly set zero on every -advertising interface. -.Pp -The command line options are: -.Bl -tag -width indent -.\" -.It Fl c -Specify an alternate location, -.Ar configfile , -for the configuration file. -By default, -.Pa /etc/rtadvd.conf -is used. -.It Fl C -Specify an alternate location for the control socket used by -.Xr rtadvctl 8 . -The default is -.Pa /var/run/rtadvd.sock . -.It Fl d -Print debugging information. -.It Fl D -Even more debugging information is printed. -.It Fl f -Foreground mode (useful when debugging). -Log messages will be dumped to stderr when this option is specified. -.It Fl M -Specify an interface to join the all-routers site-local multicast group. -By default, -.Nm -tries to join the first advertising interface appearing on the command -line. -This option has meaning only with the -.Fl R -option, which enables routing renumbering protocol support. -.It Fl p -Specify an alternative file in which to store the process ID. -The default is -.Pa /var/run/rtadvd.pid . -.It Fl R -Accept router renumbering requests. -If you enable it, certain IPsec setup is suggested for security reasons. -This option is currently disabled, and is ignored by -.Nm -with a warning message. -.It Fl s -Do not add or delete prefixes dynamically. -Only statically configured prefixes, if any, will be advertised. -.El -.Pp -Use -.Dv SIGHUP -to reload the configuration file -.Pa /etc/rtadvd.conf . -If an invalid parameter is found in the configuration file upon the reload, -the entry will be ignored and the old configuration will be used. -When parameters in an existing entry are updated, -.Nm -will send Router Advertisement messages with the old configuration but -zero router lifetime to the interface first, and then start to send a new -message. -.Pp -Use -.Dv SIGTERM -to kill -.Nm -gracefully. -In this case, -.Nm -will transmit router advertisement with router lifetime 0 -to all the interfaces -.Pq in accordance with RFC 4861 6.2.5 . -.Sh FILES -.Bl -tag -width Pa -compact -.It Pa /etc/rtadvd.conf -The default configuration file. -.It Pa /var/run/rtadvd.pid -The default process ID file. -.El -.Sh EXIT STATUS -.Ex -std -.Sh SEE ALSO -.Xr rtadvd.conf 5 , -.Xr rtadvctl 8 , -.Xr rtsol 8 -.Rs -.%A Thomas Narten -.%A Erik Nordmark -.%A W. A. Simpson -.%A Hesham Soliman -.%T Neighbor Discovery for IP version 6 (IPv6) -.%R RFC 4861 -.Re -.Rs -.%A Thomas Narten -.%A Erik Nordmark -.%A W. A. Simpson -.%T Neighbor Discovery for IP version 6 (IPv6) -.%R RFC 2461 (obsoleted by RFC 4861) -.Re -.Rs -.%A Richard Draves -.%T Default Router Preferences and More-Specific Routes -.%R draft-ietf-ipngwg-router-selection-xx.txt -.Re -.Rs -.%A J. Jeong -.%A S. Park -.%A L. Beloeil -.%A S. Madanapalli -.%T IPv6 Router Advertisement Options for DNS Configuration -.%R RFC 6106 -.Re -.Sh HISTORY -The -.Nm -command first appeared in the WIDE Hydrangea IPv6 protocol stack kit. -.Sh BUGS -There used to be some text that recommended users not to let -.Nm -advertise Router Advertisement messages on an upstream link to avoid -undesirable -.Xr icmp6 4 -redirect messages. -However, based on the later discussion in the IETF ipng working group, -all routers should rather advertise the messages regardless of -the network topology, in order to ensure reachability. diff --git a/usr.sbin/rtadvd/rtadvd.c b/usr.sbin/rtadvd/rtadvd.c deleted file mode 100644 index 9976c78..0000000 --- a/usr.sbin/rtadvd/rtadvd.c +++ /dev/null @@ -1,1914 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: rtadvd.c,v 1.82 2003/08/05 12:34:23 itojun Exp $ */ - -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/param.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/uio.h> -#include <sys/queue.h> -#include <sys/stat.h> -#include <sys/sysctl.h> - -#include <net/if.h> -#include <net/if_types.h> -#include <net/if_media.h> -#include <net/if_dl.h> -#include <net/route.h> -#include <netinet/in.h> -#include <netinet/ip6.h> -#include <netinet6/ip6_var.h> -#include <netinet/icmp6.h> - -#include <arpa/inet.h> - -#include <netinet/in_var.h> -#include <netinet6/nd6.h> - -#include <time.h> -#include <unistd.h> -#include <stdio.h> -#include <err.h> -#include <errno.h> -#include <inttypes.h> -#include <libutil.h> -#include <netdb.h> -#include <signal.h> -#include <string.h> -#include <stdlib.h> -#include <syslog.h> -#include <poll.h> - -#include "pathnames.h" -#include "rtadvd.h" -#include "if.h" -#include "rrenum.h" -#include "advcap.h" -#include "timer_subr.h" -#include "timer.h" -#include "config.h" -#include "control.h" -#include "control_server.h" - -#define RTADV_TYPE2BITMASK(type) (0x1 << type) - -struct msghdr rcvmhdr; -static char *rcvcmsgbuf; -static size_t rcvcmsgbuflen; -static char *sndcmsgbuf = NULL; -static size_t sndcmsgbuflen; -struct msghdr sndmhdr; -struct iovec rcviov[2]; -struct iovec sndiov[2]; -struct sockaddr_in6 rcvfrom; -static const char *pidfilename = _PATH_RTADVDPID; -const char *conffile = _PATH_RTADVDCONF; -static struct pidfh *pfh; -static int dflag, sflag; -static int wait_shutdown; - -#define PFD_RAWSOCK 0 -#define PFD_RTSOCK 1 -#define PFD_CSOCK 2 -#define PFD_MAX 3 - -struct railist_head_t railist = - TAILQ_HEAD_INITIALIZER(railist); -struct ifilist_head_t ifilist = - TAILQ_HEAD_INITIALIZER(ifilist); - -struct nd_optlist { - TAILQ_ENTRY(nd_optlist) nol_next; - struct nd_opt_hdr *nol_opt; -}; -union nd_opt { - struct nd_opt_hdr *opt_array[9]; - struct { - struct nd_opt_hdr *zero; - struct nd_opt_hdr *src_lladdr; - struct nd_opt_hdr *tgt_lladdr; - struct nd_opt_prefix_info *pi; - struct nd_opt_rd_hdr *rh; - struct nd_opt_mtu *mtu; - TAILQ_HEAD(, nd_optlist) opt_list; - } nd_opt_each; -}; -#define opt_src_lladdr nd_opt_each.src_lladdr -#define opt_tgt_lladdr nd_opt_each.tgt_lladdr -#define opt_pi nd_opt_each.pi -#define opt_rh nd_opt_each.rh -#define opt_mtu nd_opt_each.mtu -#define opt_list nd_opt_each.opt_list - -#define NDOPT_FLAG_SRCLINKADDR (1 << 0) -#define NDOPT_FLAG_TGTLINKADDR (1 << 1) -#define NDOPT_FLAG_PREFIXINFO (1 << 2) -#define NDOPT_FLAG_RDHDR (1 << 3) -#define NDOPT_FLAG_MTU (1 << 4) -#define NDOPT_FLAG_RDNSS (1 << 5) -#define NDOPT_FLAG_DNSSL (1 << 6) - -static uint32_t ndopt_flags[] = { - [ND_OPT_SOURCE_LINKADDR] = NDOPT_FLAG_SRCLINKADDR, - [ND_OPT_TARGET_LINKADDR] = NDOPT_FLAG_TGTLINKADDR, - [ND_OPT_PREFIX_INFORMATION] = NDOPT_FLAG_PREFIXINFO, - [ND_OPT_REDIRECTED_HEADER] = NDOPT_FLAG_RDHDR, - [ND_OPT_MTU] = NDOPT_FLAG_MTU, - [ND_OPT_RDNSS] = NDOPT_FLAG_RDNSS, - [ND_OPT_DNSSL] = NDOPT_FLAG_DNSSL, -}; - -static void rtadvd_shutdown(void); -static void sock_open(struct sockinfo *); -static void rtsock_open(struct sockinfo *); -static void rtadvd_input(struct sockinfo *); -static void rs_input(int, struct nd_router_solicit *, - struct in6_pktinfo *, struct sockaddr_in6 *); -static void ra_input(int, struct nd_router_advert *, - struct in6_pktinfo *, struct sockaddr_in6 *); -static int prefix_check(struct nd_opt_prefix_info *, struct rainfo *, - struct sockaddr_in6 *); -static int nd6_options(struct nd_opt_hdr *, int, - union nd_opt *, uint32_t); -static void free_ndopts(union nd_opt *); -static void rtmsg_input(struct sockinfo *); -static void set_short_delay(struct ifinfo *); -static int check_accept_rtadv(int); - -static void -usage(void) -{ - - fprintf(stderr, "usage: rtadvd [-dDfRs] " - "[-c configfile] [-C ctlsock] [-M ifname] [-p pidfile]\n"); - exit(1); -} - -int -main(int argc, char *argv[]) -{ - struct pollfd set[PFD_MAX]; - struct timespec *timeout; - int i, ch; - int fflag = 0, logopt; - int error; - pid_t pid, otherpid; - - /* get command line options and arguments */ - while ((ch = getopt(argc, argv, "c:C:dDfhM:p:Rs")) != -1) { - switch (ch) { - case 'c': - conffile = optarg; - break; - case 'C': - ctrlsock.si_name = optarg; - break; - case 'd': - dflag++; - break; - case 'D': - dflag += 3; - break; - case 'f': - fflag = 1; - break; - case 'M': - mcastif = optarg; - break; - case 'R': - fprintf(stderr, "rtadvd: " - "the -R option is currently ignored.\n"); - /* accept_rr = 1; */ - /* run anyway... */ - break; - case 's': - sflag = 1; - break; - case 'p': - pidfilename = optarg; - break; - default: - usage(); - } - } - argc -= optind; - argv += optind; - - logopt = LOG_NDELAY | LOG_PID; - if (fflag) - logopt |= LOG_PERROR; - openlog("rtadvd", logopt, LOG_DAEMON); - - /* set log level */ - if (dflag > 2) - (void)setlogmask(LOG_UPTO(LOG_DEBUG)); - else if (dflag > 1) - (void)setlogmask(LOG_UPTO(LOG_INFO)); - else if (dflag > 0) - (void)setlogmask(LOG_UPTO(LOG_NOTICE)); - else - (void)setlogmask(LOG_UPTO(LOG_ERR)); - - /* timer initialization */ - rtadvd_timer_init(); - - pfh = pidfile_open(pidfilename, 0600, &otherpid); - if (pfh == NULL) { - if (errno == EEXIST) - errx(1, "%s already running, pid: %d", - getprogname(), otherpid); - syslog(LOG_ERR, - "failed to open the pid file %s, run anyway.", - pidfilename); - } - if (!fflag) - daemon(1, 0); - - sock_open(&sock); - - update_ifinfo(&ifilist, UPDATE_IFINFO_ALL); - for (i = 0; i < argc; i++) - update_persist_ifinfo(&ifilist, argv[i]); - - csock_open(&ctrlsock, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH); - if (ctrlsock.si_fd == -1) { - syslog(LOG_ERR, "cannot open control socket: %s", - strerror(errno)); - exit(1); - } - - /* record the current PID */ - pid = getpid(); - pidfile_write(pfh); - - set[PFD_RAWSOCK].fd = sock.si_fd; - set[PFD_RAWSOCK].events = POLLIN; - if (sflag == 0) { - rtsock_open(&rtsock); - set[PFD_RTSOCK].fd = rtsock.si_fd; - set[PFD_RTSOCK].events = POLLIN; - } else - set[PFD_RTSOCK].fd = -1; - set[PFD_CSOCK].fd = ctrlsock.si_fd; - set[PFD_CSOCK].events = POLLIN; - signal(SIGTERM, set_do_shutdown); - signal(SIGINT, set_do_shutdown); - signal(SIGHUP, set_do_reload); - - error = csock_listen(&ctrlsock); - if (error) { - syslog(LOG_ERR, "cannot listen control socket: %s", - strerror(errno)); - exit(1); - } - - /* load configuration file */ - set_do_reload(0); - - while (1) { - if (is_do_shutdown()) - rtadvd_shutdown(); - - if (is_do_reload()) { - loadconfig_ifname(reload_ifname()); - if (reload_ifname() == NULL) - syslog(LOG_INFO, - "configuration file reloaded."); - else - syslog(LOG_INFO, - "configuration file for %s reloaded.", - reload_ifname()); - reset_do_reload(); - } - - /* timeout handler update for active interfaces */ - rtadvd_update_timeout_handler(); - - /* timer expiration check and reset the timer */ - timeout = rtadvd_check_timer(); - - if (timeout != NULL) { - syslog(LOG_DEBUG, - "<%s> set timer to %ld:%ld. waiting for " - "inputs or timeout", __func__, - (long int)timeout->tv_sec, - (long int)timeout->tv_nsec / 1000); - } else { - syslog(LOG_DEBUG, - "<%s> there's no timer. waiting for inputs", - __func__); - } - if ((i = poll(set, sizeof(set)/sizeof(set[0]), - timeout ? (timeout->tv_sec * 1000 + - timeout->tv_nsec / 1000 / 1000) : INFTIM)) < 0) { - - /* EINTR would occur if a signal was delivered */ - if (errno != EINTR) - syslog(LOG_ERR, "poll() failed: %s", - strerror(errno)); - continue; - } - if (i == 0) /* timeout */ - continue; - if (rtsock.si_fd != -1 && set[PFD_RTSOCK].revents & POLLIN) - rtmsg_input(&rtsock); - - if (set[PFD_RAWSOCK].revents & POLLIN) - rtadvd_input(&sock); - - if (set[PFD_CSOCK].revents & POLLIN) { - int fd; - - fd = csock_accept(&ctrlsock); - if (fd == -1) - syslog(LOG_ERR, - "cannot accept() control socket: %s", - strerror(errno)); - else { - cm_handler_server(fd); - close(fd); - } - } - } - exit(0); /* NOTREACHED */ -} - -static void -rtadvd_shutdown(void) -{ - struct ifinfo *ifi; - struct rainfo *rai; - struct rdnss *rdn; - struct dnssl *dns; - - if (wait_shutdown) { - syslog(LOG_INFO, - "waiting expiration of the all RA timers."); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - /* - * Ignore !IFF_UP interfaces in waiting for shutdown. - */ - if (!(ifi->ifi_flags & IFF_UP) && - ifi->ifi_ra_timer != NULL) { - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - rtadvd_remove_timer(ifi->ifi_ra_timer); - ifi->ifi_ra_timer = NULL; - syslog(LOG_DEBUG, "<%s> %s(idx=%d) is down. " - "Timer removed and marked as UNCONFIGURED.", - __func__, ifi->ifi_ifname, - ifi->ifi_ifindex); - } - } - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (ifi->ifi_ra_timer != NULL) - break; - } - if (ifi == NULL) { - syslog(LOG_NOTICE, "gracefully terminated."); - exit(0); - } - - sleep(1); - return; - } - - syslog(LOG_DEBUG, "<%s> cease to be an advertising router", - __func__); - - wait_shutdown = 1; - - TAILQ_FOREACH(rai, &railist, rai_next) { - rai->rai_lifetime = 0; - TAILQ_FOREACH(rdn, &rai->rai_rdnss, rd_next) - rdn->rd_ltime = 0; - TAILQ_FOREACH(dns, &rai->rai_dnssl, dn_next) - dns->dn_ltime = 0; - } - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (!ifi->ifi_persist) - continue; - if (ifi->ifi_state == IFI_STATE_UNCONFIGURED) - continue; - if (ifi->ifi_ra_timer == NULL) - continue; - if (ifi->ifi_ra_lastsent.tv_sec == 0 && - ifi->ifi_ra_lastsent.tv_nsec == 0 && - ifi->ifi_ra_timer != NULL) { - /* - * When RA configured but never sent, - * ignore the IF immediately. - */ - rtadvd_remove_timer(ifi->ifi_ra_timer); - ifi->ifi_ra_timer = NULL; - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - continue; - } - - ifi->ifi_state = IFI_STATE_TRANSITIVE; - - /* Mark as the shut-down state. */ - ifi->ifi_rainfo_trans = ifi->ifi_rainfo; - ifi->ifi_rainfo = NULL; - - ifi->ifi_burstcount = MAX_FINAL_RTR_ADVERTISEMENTS; - ifi->ifi_burstinterval = MIN_DELAY_BETWEEN_RAS; - - ra_timer_update(ifi, &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - } - syslog(LOG_NOTICE, "final RA transmission started."); - - pidfile_remove(pfh); - csock_close(&ctrlsock); -} - -static void -rtmsg_input(struct sockinfo *s) -{ - int n, type, ifindex = 0, plen; - size_t len; - char msg[2048], *next, *lim; - char ifname[IFNAMSIZ]; - struct if_announcemsghdr *ifan; - struct rt_msghdr *rtm; - struct prefix *pfx; - struct rainfo *rai; - struct in6_addr *addr; - struct ifinfo *ifi; - char addrbuf[INET6_ADDRSTRLEN]; - int prefixchange = 0; - - if (s == NULL) { - syslog(LOG_ERR, "<%s> internal error", __func__); - exit(1); - } - n = read(s->si_fd, msg, sizeof(msg)); - rtm = (struct rt_msghdr *)msg; - syslog(LOG_DEBUG, "<%s> received a routing message " - "(type = %d, len = %d)", __func__, rtm->rtm_type, n); - - if (n > rtm->rtm_msglen) { - /* - * This usually won't happen for messages received on - * a routing socket. - */ - syslog(LOG_DEBUG, - "<%s> received data length is larger than " - "1st routing message len. multiple messages? " - "read %d bytes, but 1st msg len = %d", - __func__, n, rtm->rtm_msglen); -#if 0 - /* adjust length */ - n = rtm->rtm_msglen; -#endif - } - - lim = msg + n; - for (next = msg; next < lim; next += len) { - int oldifflags; - - next = get_next_msg(next, lim, 0, &len, - RTADV_TYPE2BITMASK(RTM_ADD) | - RTADV_TYPE2BITMASK(RTM_DELETE) | - RTADV_TYPE2BITMASK(RTM_NEWADDR) | - RTADV_TYPE2BITMASK(RTM_DELADDR) | - RTADV_TYPE2BITMASK(RTM_IFINFO) | - RTADV_TYPE2BITMASK(RTM_IFANNOUNCE)); - if (len == 0) - break; - type = ((struct rt_msghdr *)next)->rtm_type; - switch (type) { - case RTM_ADD: - case RTM_DELETE: - ifindex = get_rtm_ifindex(next); - break; - case RTM_NEWADDR: - case RTM_DELADDR: - ifindex = (int)((struct ifa_msghdr *)next)->ifam_index; - break; - case RTM_IFINFO: - ifindex = (int)((struct if_msghdr *)next)->ifm_index; - break; - case RTM_IFANNOUNCE: - ifan = (struct if_announcemsghdr *)next; - switch (ifan->ifan_what) { - case IFAN_ARRIVAL: - case IFAN_DEPARTURE: - break; - default: - syslog(LOG_DEBUG, - "<%s:%d> unknown ifan msg (ifan_what=%d)", - __func__, __LINE__, ifan->ifan_what); - continue; - } - - syslog(LOG_DEBUG, "<%s>: if_announcemsg (idx=%d:%d)", - __func__, ifan->ifan_index, ifan->ifan_what); - switch (ifan->ifan_what) { - case IFAN_ARRIVAL: - syslog(LOG_NOTICE, - "interface added (idx=%d)", - ifan->ifan_index); - update_ifinfo(&ifilist, ifan->ifan_index); - loadconfig_index(ifan->ifan_index); - break; - case IFAN_DEPARTURE: - syslog(LOG_NOTICE, - "interface removed (idx=%d)", - ifan->ifan_index); - rm_ifinfo_index(ifan->ifan_index); - - /* Clear ifi_ifindex */ - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (ifi->ifi_ifindex - == ifan->ifan_index) { - ifi->ifi_ifindex = 0; - break; - } - } - update_ifinfo(&ifilist, ifan->ifan_index); - break; - } - continue; - default: - /* should not reach here */ - syslog(LOG_DEBUG, - "<%s:%d> unknown rtmsg %d on %s", - __func__, __LINE__, type, - if_indextoname(ifindex, ifname)); - continue; - } - ifi = if_indextoifinfo(ifindex); - if (ifi == NULL) { - syslog(LOG_DEBUG, - "<%s> ifinfo not found for idx=%d. Why?", - __func__, ifindex); - continue; - } - rai = ifi->ifi_rainfo; - if (rai == NULL) { - syslog(LOG_DEBUG, - "<%s> route changed on " - "non advertising interface(%s)", - __func__, ifi->ifi_ifname); - continue; - } - - oldifflags = ifi->ifi_flags; - /* init ifflags because it may have changed */ - update_ifinfo(&ifilist, ifindex); - - switch (type) { - case RTM_ADD: - if (sflag) - break; /* we aren't interested in prefixes */ - - addr = get_addr(msg); - plen = get_prefixlen(msg); - /* sanity check for plen */ - /* as RFC2373, prefixlen is at least 4 */ - if (plen < 4 || plen > 127) { - syslog(LOG_INFO, "<%s> new interface route's" - "plen %d is invalid for a prefix", - __func__, plen); - break; - } - pfx = find_prefix(rai, addr, plen); - if (pfx) { - if (pfx->pfx_timer) { - /* - * If the prefix has been invalidated, - * make it available again. - */ - update_prefix(pfx); - prefixchange = 1; - } else - syslog(LOG_DEBUG, - "<%s> new prefix(%s/%d) " - "added on %s, " - "but it was already in list", - __func__, - inet_ntop(AF_INET6, addr, - (char *)addrbuf, - sizeof(addrbuf)), - plen, ifi->ifi_ifname); - break; - } - make_prefix(rai, ifindex, addr, plen); - prefixchange = 1; - break; - case RTM_DELETE: - if (sflag) - break; - - addr = get_addr(msg); - plen = get_prefixlen(msg); - /* sanity check for plen */ - /* as RFC2373, prefixlen is at least 4 */ - if (plen < 4 || plen > 127) { - syslog(LOG_INFO, - "<%s> deleted interface route's " - "plen %d is invalid for a prefix", - __func__, plen); - break; - } - pfx = find_prefix(rai, addr, plen); - if (pfx == NULL) { - syslog(LOG_DEBUG, - "<%s> prefix(%s/%d) was deleted on %s, " - "but it was not in list", - __func__, inet_ntop(AF_INET6, addr, - (char *)addrbuf, sizeof(addrbuf)), - plen, ifi->ifi_ifname); - break; - } - invalidate_prefix(pfx); - prefixchange = 1; - break; - case RTM_NEWADDR: - case RTM_DELADDR: - case RTM_IFINFO: - break; - default: - /* should not reach here */ - syslog(LOG_DEBUG, - "<%s:%d> unknown rtmsg %d on %s", - __func__, __LINE__, type, - if_indextoname(ifindex, ifname)); - return; - } - - /* check if an interface flag is changed */ - if ((oldifflags & IFF_UP) && /* UP to DOWN */ - !(ifi->ifi_flags & IFF_UP)) { - syslog(LOG_NOTICE, - "<interface %s becomes down. stop timer.", - ifi->ifi_ifname); - rtadvd_remove_timer(ifi->ifi_ra_timer); - ifi->ifi_ra_timer = NULL; - } else if (!(oldifflags & IFF_UP) && /* DOWN to UP */ - (ifi->ifi_flags & IFF_UP)) { - syslog(LOG_NOTICE, - "interface %s becomes up. restart timer.", - ifi->ifi_ifname); - - ifi->ifi_state = IFI_STATE_TRANSITIVE; - ifi->ifi_burstcount = - MAX_INITIAL_RTR_ADVERTISEMENTS; - ifi->ifi_burstinterval = - MAX_INITIAL_RTR_ADVERT_INTERVAL; - - ifi->ifi_ra_timer = rtadvd_add_timer(ra_timeout, - ra_timer_update, ifi, ifi); - ra_timer_update(ifi, &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - } else if (prefixchange && - (ifi->ifi_flags & IFF_UP)) { - /* - * An advertised prefix has been added or invalidated. - * Will notice the change in a short delay. - */ - set_short_delay(ifi); - } - } - - return; -} - -void -rtadvd_input(struct sockinfo *s) -{ - ssize_t i; - int *hlimp = NULL; -#ifdef OLDRAWSOCKET - struct ip6_hdr *ip; -#endif - struct icmp6_hdr *icp; - int ifindex = 0; - struct cmsghdr *cm; - struct in6_pktinfo *pi = NULL; - char ntopbuf[INET6_ADDRSTRLEN], ifnamebuf[IFNAMSIZ]; - struct in6_addr dst = in6addr_any; - struct ifinfo *ifi; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (s == NULL) { - syslog(LOG_ERR, "<%s> internal error", __func__); - exit(1); - } - /* - * Get message. We reset msg_controllen since the field could - * be modified if we had received a message before setting - * receive options. - */ - rcvmhdr.msg_controllen = rcvcmsgbuflen; - if ((i = recvmsg(s->si_fd, &rcvmhdr, 0)) < 0) - return; - - /* extract optional information via Advanced API */ - for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(&rcvmhdr); - cm; - cm = (struct cmsghdr *)CMSG_NXTHDR(&rcvmhdr, cm)) { - if (cm->cmsg_level == IPPROTO_IPV6 && - cm->cmsg_type == IPV6_PKTINFO && - cm->cmsg_len == CMSG_LEN(sizeof(struct in6_pktinfo))) { - pi = (struct in6_pktinfo *)(CMSG_DATA(cm)); - ifindex = pi->ipi6_ifindex; - dst = pi->ipi6_addr; - } - if (cm->cmsg_level == IPPROTO_IPV6 && - cm->cmsg_type == IPV6_HOPLIMIT && - cm->cmsg_len == CMSG_LEN(sizeof(int))) - hlimp = (int *)CMSG_DATA(cm); - } - if (ifindex == 0) { - syslog(LOG_ERR, "failed to get receiving interface"); - return; - } - if (hlimp == NULL) { - syslog(LOG_ERR, "failed to get receiving hop limit"); - return; - } - - /* - * If we happen to receive data on an interface which is now gone - * or down, just discard the data. - */ - ifi = if_indextoifinfo(pi->ipi6_ifindex); - if (ifi == NULL || !(ifi->ifi_flags & IFF_UP)) { - syslog(LOG_INFO, - "<%s> received data on a disabled interface (%s)", - __func__, - (ifi == NULL) ? "[gone]" : ifi->ifi_ifname); - return; - } - -#ifdef OLDRAWSOCKET - if ((size_t)i < sizeof(struct ip6_hdr) + sizeof(struct icmp6_hdr)) { - syslog(LOG_ERR, - "packet size(%d) is too short", i); - return; - } - - ip = (struct ip6_hdr *)rcvmhdr.msg_iov[0].iov_base; - icp = (struct icmp6_hdr *)(ip + 1); /* XXX: ext. hdr? */ -#else - if ((size_t)i < sizeof(struct icmp6_hdr)) { - syslog(LOG_ERR, "packet size(%zd) is too short", i); - return; - } - - icp = (struct icmp6_hdr *)rcvmhdr.msg_iov[0].iov_base; -#endif - - switch (icp->icmp6_type) { - case ND_ROUTER_SOLICIT: - /* - * Message verification - RFC 4861 6.1.1 - * XXX: these checks must be done in the kernel as well, - * but we can't completely rely on them. - */ - if (*hlimp != 255) { - syslog(LOG_NOTICE, - "RS with invalid hop limit(%d) " - "received from %s on %s", - *hlimp, - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - if (icp->icmp6_code) { - syslog(LOG_NOTICE, - "RS with invalid ICMP6 code(%d) " - "received from %s on %s", - icp->icmp6_code, - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - if ((size_t)i < sizeof(struct nd_router_solicit)) { - syslog(LOG_NOTICE, - "RS from %s on %s does not have enough " - "length (len = %zd)", - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf), i); - return; - } - rs_input(i, (struct nd_router_solicit *)icp, pi, &rcvfrom); - break; - case ND_ROUTER_ADVERT: - /* - * Message verification - RFC 4861 6.1.2 - * XXX: there's the same dilemma as above... - */ - if (!IN6_IS_ADDR_LINKLOCAL(&rcvfrom.sin6_addr)) { - syslog(LOG_NOTICE, - "RA with non-linklocal source address " - "received from %s on %s", - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, - ntopbuf, sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - if (*hlimp != 255) { - syslog(LOG_NOTICE, - "RA with invalid hop limit(%d) " - "received from %s on %s", - *hlimp, - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - if (icp->icmp6_code) { - syslog(LOG_NOTICE, - "RA with invalid ICMP6 code(%d) " - "received from %s on %s", - icp->icmp6_code, - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - if ((size_t)i < sizeof(struct nd_router_advert)) { - syslog(LOG_NOTICE, - "RA from %s on %s does not have enough " - "length (len = %zd)", - inet_ntop(AF_INET6, &rcvfrom.sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf), i); - return; - } - ra_input(i, (struct nd_router_advert *)icp, pi, &rcvfrom); - break; - case ICMP6_ROUTER_RENUMBERING: - if (mcastif == NULL) { - syslog(LOG_ERR, "received a router renumbering " - "message, but not allowed to be accepted"); - break; - } - rr_input(i, (struct icmp6_router_renum *)icp, pi, &rcvfrom, - &dst); - break; - default: - /* - * Note that this case is POSSIBLE, especially just - * after invocation of the daemon. This is because we - * could receive message after opening the socket and - * before setting ICMP6 type filter(see sock_open()). - */ - syslog(LOG_ERR, "invalid icmp type(%d)", icp->icmp6_type); - return; - } - - return; -} - -static void -rs_input(int len, struct nd_router_solicit *rs, - struct in6_pktinfo *pi, struct sockaddr_in6 *from) -{ - char ntopbuf[INET6_ADDRSTRLEN]; - char ifnamebuf[IFNAMSIZ]; - union nd_opt ndopts; - struct rainfo *rai; - struct ifinfo *ifi; - struct soliciter *sol; - - syslog(LOG_DEBUG, - "<%s> RS received from %s on %s", - __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - - /* ND option check */ - memset(&ndopts, 0, sizeof(ndopts)); - TAILQ_INIT(&ndopts.opt_list); - if (nd6_options((struct nd_opt_hdr *)(rs + 1), - len - sizeof(struct nd_router_solicit), - &ndopts, NDOPT_FLAG_SRCLINKADDR)) { - syslog(LOG_INFO, - "<%s> ND option check failed for an RS from %s on %s", - __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - return; - } - - /* - * If the IP source address is the unspecified address, there - * must be no source link-layer address option in the message. - * (RFC 4861 6.1.1) - */ - if (IN6_IS_ADDR_UNSPECIFIED(&from->sin6_addr) && - ndopts.opt_src_lladdr) { - syslog(LOG_INFO, - "<%s> RS from unspecified src on %s has a link-layer" - " address option", - __func__, if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - goto done; - } - - ifi = if_indextoifinfo(pi->ipi6_ifindex); - if (ifi == NULL) { - syslog(LOG_INFO, - "<%s> if (idx=%d) not found. Why?", - __func__, pi->ipi6_ifindex); - goto done; - } - rai = ifi->ifi_rainfo; - if (rai == NULL) { - syslog(LOG_INFO, - "<%s> RS received on non advertising interface(%s)", - __func__, - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - goto done; - } - - rai->rai_ifinfo->ifi_rsinput++; - - /* - * Decide whether to send RA according to the rate-limit - * consideration. - */ - - /* record sockaddr waiting for RA, if possible */ - sol = (struct soliciter *)malloc(sizeof(*sol)); - if (sol) { - sol->sol_addr = *from; - /* XXX RFC 2553 need clarification on flowinfo */ - sol->sol_addr.sin6_flowinfo = 0; - TAILQ_INSERT_TAIL(&rai->rai_soliciter, sol, sol_next); - } - - /* - * If there is already a waiting RS packet, don't - * update the timer. - */ - if (ifi->ifi_rs_waitcount++) - goto done; - - set_short_delay(ifi); - - done: - free_ndopts(&ndopts); - return; -} - -static void -set_short_delay(struct ifinfo *ifi) -{ - long delay; /* must not be greater than 1000000 */ - struct timespec interval, now, min_delay, tm_tmp, *rest; - - if (ifi->ifi_ra_timer == NULL) - return; - /* - * Compute a random delay. If the computed value - * corresponds to a time later than the time the next - * multicast RA is scheduled to be sent, ignore the random - * delay and send the advertisement at the - * already-scheduled time. RFC 4861 6.2.6 - */ - delay = arc4random_uniform(MAX_RA_DELAY_TIME); - interval.tv_sec = 0; - interval.tv_nsec = delay * 1000; - rest = rtadvd_timer_rest(ifi->ifi_ra_timer); - if (TS_CMP(rest, &interval, <)) { - syslog(LOG_DEBUG, "<%s> random delay is larger than " - "the rest of the current timer", __func__); - interval = *rest; - } - - /* - * If we sent a multicast Router Advertisement within - * the last MIN_DELAY_BETWEEN_RAS seconds, schedule - * the advertisement to be sent at a time corresponding to - * MIN_DELAY_BETWEEN_RAS plus the random value after the - * previous advertisement was sent. - */ - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - TS_SUB(&now, &ifi->ifi_ra_lastsent, &tm_tmp); - min_delay.tv_sec = MIN_DELAY_BETWEEN_RAS; - min_delay.tv_nsec = 0; - if (TS_CMP(&tm_tmp, &min_delay, <)) { - TS_SUB(&min_delay, &tm_tmp, &min_delay); - TS_ADD(&min_delay, &interval, &interval); - } - rtadvd_set_timer(&interval, ifi->ifi_ra_timer); -} - -static int -check_accept_rtadv(int idx) -{ - struct ifinfo *ifi; - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (ifi->ifi_ifindex == idx) - break; - } - if (ifi == NULL) { - syslog(LOG_DEBUG, - "<%s> if (idx=%d) not found. Why?", - __func__, idx); - return (0); - } -#if (__FreeBSD_version < 900000) - /* - * RA_RECV: !ip6.forwarding && ip6.accept_rtadv - * RA_SEND: ip6.forwarding - */ - return ((getinet6sysctl(IPV6CTL_FORWARDING) == 0) && - (getinet6sysctl(IPV6CTL_ACCEPT_RTADV) == 1)); -#else - /* - * RA_RECV: ND6_IFF_ACCEPT_RTADV - * RA_SEND: ip6.forwarding - */ - if (update_ifinfo_nd_flags(ifi) != 0) { - syslog(LOG_ERR, "cannot get nd6 flags (idx=%d)", idx); - return (0); - } - - return (ifi->ifi_nd_flags & ND6_IFF_ACCEPT_RTADV); -#endif -} - -static void -ra_input(int len, struct nd_router_advert *nra, - struct in6_pktinfo *pi, struct sockaddr_in6 *from) -{ - struct rainfo *rai; - struct ifinfo *ifi; - char ntopbuf[INET6_ADDRSTRLEN]; - char ifnamebuf[IFNAMSIZ]; - union nd_opt ndopts; - const char *on_off[] = {"OFF", "ON"}; - uint32_t reachabletime, retranstimer, mtu; - int inconsistent = 0; - int error; - - syslog(LOG_DEBUG, "<%s> RA received from %s on %s", __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, sizeof(ntopbuf)), - if_indextoname(pi->ipi6_ifindex, ifnamebuf)); - - /* ND option check */ - memset(&ndopts, 0, sizeof(ndopts)); - TAILQ_INIT(&ndopts.opt_list); - error = nd6_options((struct nd_opt_hdr *)(nra + 1), - len - sizeof(struct nd_router_advert), &ndopts, - NDOPT_FLAG_SRCLINKADDR | NDOPT_FLAG_PREFIXINFO | NDOPT_FLAG_MTU | - NDOPT_FLAG_RDNSS | NDOPT_FLAG_DNSSL); - if (error) { - syslog(LOG_INFO, - "<%s> ND option check failed for an RA from %s on %s", - __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), if_indextoname(pi->ipi6_ifindex, - ifnamebuf)); - return; - } - - /* - * RA consistency check according to RFC 4861 6.2.7 - */ - ifi = if_indextoifinfo(pi->ipi6_ifindex); - if (ifi->ifi_rainfo == NULL) { - syslog(LOG_INFO, - "<%s> received RA from %s on non-advertising" - " interface(%s)", - __func__, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), if_indextoname(pi->ipi6_ifindex, - ifnamebuf)); - goto done; - } - rai = ifi->ifi_rainfo; - ifi->ifi_rainput++; - syslog(LOG_DEBUG, "<%s> ifi->ifi_rainput = %" PRIu64, __func__, - ifi->ifi_rainput); - - /* Cur Hop Limit value */ - if (nra->nd_ra_curhoplimit && rai->rai_hoplimit && - nra->nd_ra_curhoplimit != rai->rai_hoplimit) { - syslog(LOG_NOTICE, - "CurHopLimit inconsistent on %s:" - " %d from %s, %d from us", - ifi->ifi_ifname, nra->nd_ra_curhoplimit, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), rai->rai_hoplimit); - inconsistent++; - } - /* M flag */ - if ((nra->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED) != - rai->rai_managedflg) { - syslog(LOG_NOTICE, - "M flag inconsistent on %s:" - " %s from %s, %s from us", - ifi->ifi_ifname, on_off[!rai->rai_managedflg], - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), on_off[rai->rai_managedflg]); - inconsistent++; - } - /* O flag */ - if ((nra->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) != - rai->rai_otherflg) { - syslog(LOG_NOTICE, - "O flag inconsistent on %s:" - " %s from %s, %s from us", - ifi->ifi_ifname, on_off[!rai->rai_otherflg], - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), on_off[rai->rai_otherflg]); - inconsistent++; - } - /* Reachable Time */ - reachabletime = ntohl(nra->nd_ra_reachable); - if (reachabletime && rai->rai_reachabletime && - reachabletime != rai->rai_reachabletime) { - syslog(LOG_NOTICE, - "ReachableTime inconsistent on %s:" - " %d from %s, %d from us", - ifi->ifi_ifname, reachabletime, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), rai->rai_reachabletime); - inconsistent++; - } - /* Retrans Timer */ - retranstimer = ntohl(nra->nd_ra_retransmit); - if (retranstimer && rai->rai_retranstimer && - retranstimer != rai->rai_retranstimer) { - syslog(LOG_NOTICE, - "RetranceTimer inconsistent on %s:" - " %d from %s, %d from us", - ifi->ifi_ifname, retranstimer, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), rai->rai_retranstimer); - inconsistent++; - } - /* Values in the MTU options */ - if (ndopts.opt_mtu) { - mtu = ntohl(ndopts.opt_mtu->nd_opt_mtu_mtu); - if (mtu && rai->rai_linkmtu && mtu != rai->rai_linkmtu) { - syslog(LOG_NOTICE, - "MTU option value inconsistent on %s:" - " %d from %s, %d from us", - ifi->ifi_ifname, mtu, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), rai->rai_linkmtu); - inconsistent++; - } - } - /* Preferred and Valid Lifetimes for prefixes */ - { - struct nd_optlist *nol; - - if (ndopts.opt_pi) - if (prefix_check(ndopts.opt_pi, rai, from)) - inconsistent++; - - TAILQ_FOREACH(nol, &ndopts.opt_list, nol_next) - if (prefix_check((struct nd_opt_prefix_info *)nol->nol_opt, - rai, from)) - inconsistent++; - } - - if (inconsistent) - ifi->ifi_rainconsistent++; - - done: - free_ndopts(&ndopts); - return; -} - -static uint32_t -udiff(uint32_t u, uint32_t v) -{ - return (u >= v ? u - v : v - u); -} - -/* return a non-zero value if the received prefix is inconsistent with ours */ -static int -prefix_check(struct nd_opt_prefix_info *pinfo, - struct rainfo *rai, struct sockaddr_in6 *from) -{ - struct ifinfo *ifi; - uint32_t preferred_time, valid_time; - struct prefix *pfx; - int inconsistent = 0; - char ntopbuf[INET6_ADDRSTRLEN]; - char prefixbuf[INET6_ADDRSTRLEN]; - struct timespec now; - -#if 0 /* impossible */ - if (pinfo->nd_opt_pi_type != ND_OPT_PREFIX_INFORMATION) - return (0); -#endif - ifi = rai->rai_ifinfo; - /* - * log if the adveritsed prefix has link-local scope(sanity check?) - */ - if (IN6_IS_ADDR_LINKLOCAL(&pinfo->nd_opt_pi_prefix)) - syslog(LOG_INFO, - "<%s> link-local prefix %s/%d is advertised " - "from %s on %s", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), ifi->ifi_ifname); - - if ((pfx = find_prefix(rai, &pinfo->nd_opt_pi_prefix, - pinfo->nd_opt_pi_prefix_len)) == NULL) { - syslog(LOG_INFO, - "<%s> prefix %s/%d from %s on %s is not in our list", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), ifi->ifi_ifname); - return (0); - } - - preferred_time = ntohl(pinfo->nd_opt_pi_preferred_time); - if (pfx->pfx_pltimeexpire) { - /* - * The lifetime is decremented in real time, so we should - * compare the expiration time. - * (RFC 2461 Section 6.2.7.) - * XXX: can we really expect that all routers on the link - * have synchronized clocks? - */ - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - preferred_time += now.tv_sec; - - if (!pfx->pfx_timer && rai->rai_clockskew && - udiff(preferred_time, pfx->pfx_pltimeexpire) > rai->rai_clockskew) { - syslog(LOG_INFO, - "<%s> preferred lifetime for %s/%d" - " (decr. in real time) inconsistent on %s:" - " %" PRIu32 " from %s, %" PRIu32 " from us", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - ifi->ifi_ifname, preferred_time, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_pltimeexpire); - inconsistent++; - } - } else if (!pfx->pfx_timer && preferred_time != pfx->pfx_preflifetime) - syslog(LOG_INFO, - "<%s> preferred lifetime for %s/%d" - " inconsistent on %s:" - " %d from %s, %d from us", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - ifi->ifi_ifname, preferred_time, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_preflifetime); - - valid_time = ntohl(pinfo->nd_opt_pi_valid_time); - if (pfx->pfx_vltimeexpire) { - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - valid_time += now.tv_sec; - - if (!pfx->pfx_timer && rai->rai_clockskew && - udiff(valid_time, pfx->pfx_vltimeexpire) > rai->rai_clockskew) { - syslog(LOG_INFO, - "<%s> valid lifetime for %s/%d" - " (decr. in real time) inconsistent on %s:" - " %d from %s, %" PRIu32 " from us", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - ifi->ifi_ifname, preferred_time, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_vltimeexpire); - inconsistent++; - } - } else if (!pfx->pfx_timer && valid_time != pfx->pfx_validlifetime) { - syslog(LOG_INFO, - "<%s> valid lifetime for %s/%d" - " inconsistent on %s:" - " %d from %s, %d from us", - __func__, - inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix, prefixbuf, - sizeof(prefixbuf)), - pinfo->nd_opt_pi_prefix_len, - ifi->ifi_ifname, valid_time, - inet_ntop(AF_INET6, &from->sin6_addr, ntopbuf, - sizeof(ntopbuf)), pfx->pfx_validlifetime); - inconsistent++; - } - - return (inconsistent); -} - -struct prefix * -find_prefix(struct rainfo *rai, struct in6_addr *prefix, int plen) -{ - struct prefix *pfx; - int bytelen, bitlen; - char bitmask; - - TAILQ_FOREACH(pfx, &rai->rai_prefix, pfx_next) { - if (plen != pfx->pfx_prefixlen) - continue; - - bytelen = plen / 8; - bitlen = plen % 8; - bitmask = 0xff << (8 - bitlen); - - if (memcmp((void *)prefix, (void *)&pfx->pfx_prefix, bytelen)) - continue; - - if (bitlen == 0 || - ((prefix->s6_addr[bytelen] & bitmask) == - (pfx->pfx_prefix.s6_addr[bytelen] & bitmask))) { - return (pfx); - } - } - - return (NULL); -} - -/* check if p0/plen0 matches p1/plen1; return 1 if matches, otherwise 0. */ -int -prefix_match(struct in6_addr *p0, int plen0, - struct in6_addr *p1, int plen1) -{ - int bytelen, bitlen; - char bitmask; - - if (plen0 < plen1) - return (0); - - bytelen = plen1 / 8; - bitlen = plen1 % 8; - bitmask = 0xff << (8 - bitlen); - - if (memcmp((void *)p0, (void *)p1, bytelen)) - return (0); - - if (bitlen == 0 || - ((p0->s6_addr[bytelen] & bitmask) == - (p1->s6_addr[bytelen] & bitmask))) { - return (1); - } - - return (0); -} - -static int -nd6_options(struct nd_opt_hdr *hdr, int limit, - union nd_opt *ndopts, uint32_t optflags) -{ - int optlen = 0; - - for (; limit > 0; limit -= optlen) { - if ((size_t)limit < sizeof(struct nd_opt_hdr)) { - syslog(LOG_INFO, "<%s> short option header", __func__); - goto bad; - } - - hdr = (struct nd_opt_hdr *)((caddr_t)hdr + optlen); - if (hdr->nd_opt_len == 0) { - syslog(LOG_INFO, - "<%s> bad ND option length(0) (type = %d)", - __func__, hdr->nd_opt_type); - goto bad; - } - optlen = hdr->nd_opt_len << 3; - if (optlen > limit) { - syslog(LOG_INFO, "<%s> short option", __func__); - goto bad; - } - - if (hdr->nd_opt_type > ND_OPT_MTU && - hdr->nd_opt_type != ND_OPT_RDNSS && - hdr->nd_opt_type != ND_OPT_DNSSL) { - syslog(LOG_INFO, "<%s> unknown ND option(type %d)", - __func__, hdr->nd_opt_type); - continue; - } - - if ((ndopt_flags[hdr->nd_opt_type] & optflags) == 0) { - syslog(LOG_INFO, "<%s> unexpected ND option(type %d)", - __func__, hdr->nd_opt_type); - continue; - } - - /* - * Option length check. Do it here for all fixed-length - * options. - */ - switch (hdr->nd_opt_type) { - case ND_OPT_MTU: - if (optlen == sizeof(struct nd_opt_mtu)) - break; - goto skip; - case ND_OPT_RDNSS: - if (optlen >= 24 && - (optlen - sizeof(struct nd_opt_rdnss)) % 16 == 0) - break; - goto skip; - case ND_OPT_DNSSL: - if (optlen >= 16 && - (optlen - sizeof(struct nd_opt_dnssl)) % 8 == 0) - break; - goto skip; - case ND_OPT_PREFIX_INFORMATION: - if (optlen == sizeof(struct nd_opt_prefix_info)) - break; -skip: - syslog(LOG_INFO, "<%s> invalid option length", - __func__); - continue; - } - - switch (hdr->nd_opt_type) { - case ND_OPT_TARGET_LINKADDR: - case ND_OPT_REDIRECTED_HEADER: - case ND_OPT_RDNSS: - case ND_OPT_DNSSL: - break; /* we don't care about these options */ - case ND_OPT_SOURCE_LINKADDR: - case ND_OPT_MTU: - if (ndopts->opt_array[hdr->nd_opt_type]) { - syslog(LOG_INFO, - "<%s> duplicated ND option (type = %d)", - __func__, hdr->nd_opt_type); - } - ndopts->opt_array[hdr->nd_opt_type] = hdr; - break; - case ND_OPT_PREFIX_INFORMATION: - { - struct nd_optlist *nol; - - if (ndopts->opt_pi == 0) { - ndopts->opt_pi = - (struct nd_opt_prefix_info *)hdr; - continue; - } - nol = malloc(sizeof(*nol)); - if (nol == NULL) { - syslog(LOG_ERR, "<%s> can't allocate memory", - __func__); - goto bad; - } - nol->nol_opt = hdr; - TAILQ_INSERT_TAIL(&(ndopts->opt_list), nol, nol_next); - - break; - } - default: /* impossible */ - break; - } - } - - return (0); - - bad: - free_ndopts(ndopts); - - return (-1); -} - -static void -free_ndopts(union nd_opt *ndopts) -{ - struct nd_optlist *nol; - - while ((nol = TAILQ_FIRST(&ndopts->opt_list)) != NULL) { - TAILQ_REMOVE(&ndopts->opt_list, nol, nol_next); - free(nol); - } -} - -void -sock_open(struct sockinfo *s) -{ - struct icmp6_filter filt; - int on; - /* XXX: should be max MTU attached to the node */ - static char answer[1500]; - - syslog(LOG_DEBUG, "<%s> enter", __func__); - - if (s == NULL) { - syslog(LOG_ERR, "<%s> internal error", __func__); - exit(1); - } - rcvcmsgbuflen = CMSG_SPACE(sizeof(struct in6_pktinfo)) + - CMSG_SPACE(sizeof(int)); - rcvcmsgbuf = (char *)malloc(rcvcmsgbuflen); - if (rcvcmsgbuf == NULL) { - syslog(LOG_ERR, "<%s> not enough core", __func__); - exit(1); - } - - sndcmsgbuflen = CMSG_SPACE(sizeof(struct in6_pktinfo)) + - CMSG_SPACE(sizeof(int)); - sndcmsgbuf = (char *)malloc(sndcmsgbuflen); - if (sndcmsgbuf == NULL) { - syslog(LOG_ERR, "<%s> not enough core", __func__); - exit(1); - } - - if ((s->si_fd = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6)) < 0) { - syslog(LOG_ERR, "<%s> socket: %s", __func__, strerror(errno)); - exit(1); - } - /* specify to tell receiving interface */ - on = 1; - if (setsockopt(s->si_fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, - sizeof(on)) < 0) { - syslog(LOG_ERR, "<%s> IPV6_RECVPKTINFO: %s", __func__, - strerror(errno)); - exit(1); - } - on = 1; - /* specify to tell value of hoplimit field of received IP6 hdr */ - if (setsockopt(s->si_fd, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &on, - sizeof(on)) < 0) { - syslog(LOG_ERR, "<%s> IPV6_RECVHOPLIMIT: %s", __func__, - strerror(errno)); - exit(1); - } - ICMP6_FILTER_SETBLOCKALL(&filt); - ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filt); - ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filt); - if (mcastif != NULL) - ICMP6_FILTER_SETPASS(ICMP6_ROUTER_RENUMBERING, &filt); - - if (setsockopt(s->si_fd, IPPROTO_ICMPV6, ICMP6_FILTER, &filt, - sizeof(filt)) < 0) { - syslog(LOG_ERR, "<%s> IICMP6_FILTER: %s", - __func__, strerror(errno)); - exit(1); - } - - /* initialize msghdr for receiving packets */ - rcviov[0].iov_base = (caddr_t)answer; - rcviov[0].iov_len = sizeof(answer); - rcvmhdr.msg_name = (caddr_t)&rcvfrom; - rcvmhdr.msg_namelen = sizeof(rcvfrom); - rcvmhdr.msg_iov = rcviov; - rcvmhdr.msg_iovlen = 1; - rcvmhdr.msg_control = (caddr_t) rcvcmsgbuf; - rcvmhdr.msg_controllen = rcvcmsgbuflen; - - /* initialize msghdr for sending packets */ - sndmhdr.msg_namelen = sizeof(struct sockaddr_in6); - sndmhdr.msg_iov = sndiov; - sndmhdr.msg_iovlen = 1; - sndmhdr.msg_control = (caddr_t)sndcmsgbuf; - sndmhdr.msg_controllen = sndcmsgbuflen; - - return; -} - -/* open a routing socket to watch the routing table */ -static void -rtsock_open(struct sockinfo *s) -{ - if (s == NULL) { - syslog(LOG_ERR, "<%s> internal error", __func__); - exit(1); - } - if ((s->si_fd = socket(PF_ROUTE, SOCK_RAW, 0)) < 0) { - syslog(LOG_ERR, - "<%s> socket: %s", __func__, strerror(errno)); - exit(1); - } -} - -struct ifinfo * -if_indextoifinfo(int idx) -{ - struct ifinfo *ifi; - char *name, name0[IFNAMSIZ]; - - /* Check if the interface has a valid name or not. */ - if (if_indextoname(idx, name0) == NULL) - return (NULL); - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - if (ifi->ifi_ifindex == idx) - return (ifi); - } - - if (ifi != NULL) - syslog(LOG_DEBUG, "<%s> ifi found (idx=%d)", - __func__, idx); - else - syslog(LOG_DEBUG, "<%s> ifi not found (idx=%d)", - __func__, idx); - - return (NULL); /* search failed */ -} - -void -ra_output(struct ifinfo *ifi) -{ - int i; - struct cmsghdr *cm; - struct in6_pktinfo *pi; - struct soliciter *sol; - struct rainfo *rai; - - switch (ifi->ifi_state) { - case IFI_STATE_CONFIGURED: - rai = ifi->ifi_rainfo; - break; - case IFI_STATE_TRANSITIVE: - rai = ifi->ifi_rainfo_trans; - break; - case IFI_STATE_UNCONFIGURED: - syslog(LOG_DEBUG, "<%s> %s is unconfigured. " - "Skip sending RAs.", - __func__, ifi->ifi_ifname); - return; - default: - rai = NULL; - } - if (rai == NULL) { - syslog(LOG_DEBUG, "<%s> rainfo is NULL on %s." - "Skip sending RAs.", - __func__, ifi->ifi_ifname); - return; - } - if (!(ifi->ifi_flags & IFF_UP)) { - syslog(LOG_DEBUG, "<%s> %s is not up. " - "Skip sending RAs.", - __func__, ifi->ifi_ifname); - return; - } - /* - * Check lifetime, ACCEPT_RTADV flag, and ip6.forwarding. - * - * (lifetime == 0) = output - * (lifetime != 0 && (check_accept_rtadv()) = no output - * - * Basically, hosts MUST NOT send Router Advertisement - * messages at any time (RFC 4861, Section 6.2.3). However, it - * would sometimes be useful to allow hosts to advertise some - * parameters such as prefix information and link MTU. Thus, - * we allow hosts to invoke rtadvd only when router lifetime - * (on every advertising interface) is explicitly set - * zero. (see also the above section) - */ - syslog(LOG_DEBUG, - "<%s> check lifetime=%d, ACCEPT_RTADV=%d, ip6.forwarding=%d " - "on %s", __func__, - rai->rai_lifetime, - check_accept_rtadv(ifi->ifi_ifindex), - getinet6sysctl(IPV6CTL_FORWARDING), - ifi->ifi_ifname); - - if (rai->rai_lifetime != 0) { - if (getinet6sysctl(IPV6CTL_FORWARDING) == 0) { - syslog(LOG_ERR, - "non-zero lifetime RA " - "but net.inet6.ip6.forwarding=0. " - "Ignored."); - return; - } - if (check_accept_rtadv(ifi->ifi_ifindex)) { - syslog(LOG_ERR, - "non-zero lifetime RA " - "on RA receiving interface %s." - " Ignored.", ifi->ifi_ifname); - return; - } - } - - make_packet(rai); /* XXX: inefficient */ - - sndmhdr.msg_name = (caddr_t)&sin6_linklocal_allnodes; - sndmhdr.msg_iov[0].iov_base = (caddr_t)rai->rai_ra_data; - sndmhdr.msg_iov[0].iov_len = rai->rai_ra_datalen; - - cm = CMSG_FIRSTHDR(&sndmhdr); - /* specify the outgoing interface */ - cm->cmsg_level = IPPROTO_IPV6; - cm->cmsg_type = IPV6_PKTINFO; - cm->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); - pi = (struct in6_pktinfo *)CMSG_DATA(cm); - memset(&pi->ipi6_addr, 0, sizeof(pi->ipi6_addr)); /*XXX*/ - pi->ipi6_ifindex = ifi->ifi_ifindex; - - /* specify the hop limit of the packet */ - { - int hoplimit = 255; - - cm = CMSG_NXTHDR(&sndmhdr, cm); - cm->cmsg_level = IPPROTO_IPV6; - cm->cmsg_type = IPV6_HOPLIMIT; - cm->cmsg_len = CMSG_LEN(sizeof(int)); - memcpy(CMSG_DATA(cm), &hoplimit, sizeof(int)); - } - - syslog(LOG_DEBUG, - "<%s> send RA on %s, # of RS waitings = %d", - __func__, ifi->ifi_ifname, ifi->ifi_rs_waitcount); - - i = sendmsg(sock.si_fd, &sndmhdr, 0); - - if (i < 0 || (size_t)i != rai->rai_ra_datalen) { - if (i < 0) { - syslog(LOG_ERR, "<%s> sendmsg on %s: %s", - __func__, ifi->ifi_ifname, - strerror(errno)); - } - } - - /* - * unicast advertisements - * XXX commented out. reason: though spec does not forbit it, unicast - * advert does not really help - */ - while ((sol = TAILQ_FIRST(&rai->rai_soliciter)) != NULL) { - TAILQ_REMOVE(&rai->rai_soliciter, sol, sol_next); - free(sol); - } - - /* update timestamp */ - clock_gettime(CLOCK_MONOTONIC_FAST, &ifi->ifi_ra_lastsent); - - /* update counter */ - ifi->ifi_rs_waitcount = 0; - ifi->ifi_raoutput++; - - switch (ifi->ifi_state) { - case IFI_STATE_CONFIGURED: - if (ifi->ifi_burstcount > 0) - ifi->ifi_burstcount--; - break; - case IFI_STATE_TRANSITIVE: - ifi->ifi_burstcount--; - if (ifi->ifi_burstcount == 0) { - if (ifi->ifi_rainfo == ifi->ifi_rainfo_trans) { - /* Initial burst finished. */ - if (ifi->ifi_rainfo_trans != NULL) - ifi->ifi_rainfo_trans = NULL; - } - - /* Remove burst RA information */ - if (ifi->ifi_rainfo_trans != NULL) { - rm_rainfo(ifi->ifi_rainfo_trans); - ifi->ifi_rainfo_trans = NULL; - } - - if (ifi->ifi_rainfo != NULL) { - /* - * TRANSITIVE -> CONFIGURED - * - * After initial burst or transition from - * one configuration to another, - * ifi_rainfo always points to the next RA - * information. - */ - ifi->ifi_state = IFI_STATE_CONFIGURED; - syslog(LOG_DEBUG, - "<%s> ifname=%s marked as " - "CONFIGURED.", __func__, - ifi->ifi_ifname); - } else { - /* - * TRANSITIVE -> UNCONFIGURED - * - * If ifi_rainfo points to NULL, this - * interface is shutting down. - * - */ - int error; - - ifi->ifi_state = IFI_STATE_UNCONFIGURED; - syslog(LOG_DEBUG, - "<%s> ifname=%s marked as " - "UNCONFIGURED.", __func__, - ifi->ifi_ifname); - error = sock_mc_leave(&sock, - ifi->ifi_ifindex); - if (error) - exit(1); - } - } - break; - } -} - -/* process RA timer */ -struct rtadvd_timer * -ra_timeout(void *arg) -{ - struct ifinfo *ifi; - - ifi = (struct ifinfo *)arg; - syslog(LOG_DEBUG, "<%s> RA timer on %s is expired", - __func__, ifi->ifi_ifname); - - ra_output(ifi); - - return (ifi->ifi_ra_timer); -} - -/* update RA timer */ -void -ra_timer_update(void *arg, struct timespec *tm) -{ - uint16_t interval; - struct rainfo *rai; - struct ifinfo *ifi; - - ifi = (struct ifinfo *)arg; - rai = ifi->ifi_rainfo; - interval = 0; - - switch (ifi->ifi_state) { - case IFI_STATE_UNCONFIGURED: - return; - break; - case IFI_STATE_CONFIGURED: - /* - * Whenever a multicast advertisement is sent from - * an interface, the timer is reset to a - * uniformly-distributed random value between the - * interface's configured MinRtrAdvInterval and - * MaxRtrAdvInterval (RFC4861 6.2.4). - */ - interval = rai->rai_mininterval; - interval += arc4random_uniform(rai->rai_maxinterval - - rai->rai_mininterval); - break; - case IFI_STATE_TRANSITIVE: - /* - * For the first few advertisements (up to - * MAX_INITIAL_RTR_ADVERTISEMENTS), if the randomly chosen - * interval is greater than - * MAX_INITIAL_RTR_ADVERT_INTERVAL, the timer SHOULD be - * set to MAX_INITIAL_RTR_ADVERT_INTERVAL instead. (RFC - * 4861 6.2.4) - * - * In such cases, the router SHOULD transmit one or more - * (but not more than MAX_FINAL_RTR_ADVERTISEMENTS) final - * multicast Router Advertisements on the interface with a - * Router Lifetime field of zero. (RFC 4861 6.2.5) - */ - interval = ifi->ifi_burstinterval; - break; - } - - tm->tv_sec = interval; - tm->tv_nsec = 0; - - syslog(LOG_DEBUG, - "<%s> RA timer on %s is set to %ld:%ld", - __func__, ifi->ifi_ifname, - (long int)tm->tv_sec, (long int)tm->tv_nsec / 1000); - - return; -} diff --git a/usr.sbin/rtadvd/rtadvd.conf b/usr.sbin/rtadvd/rtadvd.conf deleted file mode 100644 index 1e42c75..0000000 --- a/usr.sbin/rtadvd/rtadvd.conf +++ /dev/null @@ -1,22 +0,0 @@ -# $FreeBSD$ -# $KAME: rtadvd.conf,v 1.13 2003/06/25 03:45:21 itojun Exp $ -# -# Note: All of the following parameters have default values defined -# in specifications, and hence you usually do not have to set them -# by hand unless you need special non-default values. -# -# You even do not need to create the configuration file. rtadvd -# would usually work well without a configuration file. -# See also: rtadvd(8) - -# per-interface definitions. -# Mainly IPv6 prefixes are configured in this part. However, rtadvd -# automatically learns appropriate prefixes from the kernel's routing -# table, and advertises the prefixes, so you don't have to configure -# this part, either. -# If you don't want the automatic advertisement, (uncomment and) configure -# this part by hand, and then invoke rtadvd with the -s option. - -#ef0:\ -# :addr="2001:db8:ffff:1000::":prefixlen#64:\ -# :rdnss="2001:db8:ffff:1000::1":dnssl="example.com": diff --git a/usr.sbin/rtadvd/rtadvd.conf.5 b/usr.sbin/rtadvd/rtadvd.conf.5 deleted file mode 100644 index d4a0c02..0000000 --- a/usr.sbin/rtadvd/rtadvd.conf.5 +++ /dev/null @@ -1,530 +0,0 @@ -.\" $KAME: rtadvd.conf.5,v 1.50 2005/01/14 05:30:59 jinmei Exp $ -.\" -.\" Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of the project nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $FreeBSD$ -.\" -.Dd June 4, 2011 -.Dt RTADVD.CONF 5 -.Os -.Sh NAME -.Nm rtadvd.conf -.Nd config file for router advertisement daemon -.Sh DESCRIPTION -This file describes how the router advertisement packets must be constructed -for each of the interfaces. -.Pp -As described in -.Xr rtadvd 8 , -you do not have to set this configuration file up at all, -unless you need some special configurations. -You may even omit the file as a whole. -In such cases, the -.Nm rtadvd -daemon will automatically configure itself using default values -specified in the specification. -.Pp -It obeys the famous -.Xr termcap 5 -file format. -Each line in the file describes a network interface. -Fields are separated by a colon -.Pq Sq \&: , -and each field contains one capability description. -Lines may be concatenated by the -.Sq \e -character. -The comment marker is the -.Sq \&# -character. -.Sh CAPABILITIES -Capabilities describe the value to be filled into ICMPv6 router -advertisement messages and to control -.Xr rtadvd 8 -behavior. -Therefore, you are encouraged to read IETF neighbor discovery documents -if you would like to modify the sample configuration file. -.Pp -Note that almost all items have default values. -If you omit an item, the default value of the item will be used. -.Pp -There are two items which control the interval of sending router advertisements. -These items can be omitted, then -.Nm rtadvd -will use the default values. -.Bl -tag -width indent -.It Cm \&maxinterval -(num) The maximum time allowed between sending unsolicited -multicast router advertisements -.Pq unit: seconds . -The default value is 600. -Its value must be no less than 4 seconds -and no greater than 1800 seconds. -.It Cm \&mininterval -(num) The minimum time allowed between sending unsolicited multicast -router advertisements -.Pq unit: seconds . -The default value is the one third of value of -.Cm maxinterval . -Its value must be no less than 3 seconds and no greater than .75 * -the value of -.Cm maxinterval . -.El -.Pp -The following items are for ICMPv6 router advertisement message -header. -These items can be omitted, then -.Nm rtadvd -will use the default values. -.Bl -tag -width indent -.It Cm \&chlim -(num) The value for Cur Hop Limit field. -The default value is 64. -.It Cm \&raflags -(str or num) A 8-bit flags field in router advertisement message header. -This field can be specified either as a case-sensitive string or as an -integer. -A string consists of characters each of which corresponds to a -particular flag bit(s). -An integer should be the logical OR of all enabled bits. -Bit 7 -.Po -.Li 'm' or 0x80 -.Pc -means Managed address configuration flag bit, -and Bit 6 -.Po -.Li 'o' or 0x40 -.Pc -means Other stateful configuration flag bit. -Bit 4 -.Po -.Li 0x10 -.Pc -and Bit 3 -.Po -.Li 0x08 -.Pc -are used to encode router preference. -Bits 01 -.Po -or 'h' -.Pc -means high, 00 means medium, and 11 -.Po -or 'l' -.Pc -means low. -Bits 10 is reserved, and must not be specified. -There is no character to specify the medium preference explicitly. -The default value of the entire flag is 0 -.Po -or a null string, -.Pc -which means no additional -configuration methods, and the medium router preference. -.It Cm \&rltime -(num) Router lifetime field -.Pq unit: seconds . -The value must be either zero or between -the value of -.Cm maxinterval -and 9000. -When -.Nm rtadvd -runs on a host, this value must explicitly set 0 on all the -advertising interfaces as described in -.Xr rtadvd 8 . -The default value is 1800. -.It Cm \&rtime -(num) Reachable time field -.Pq unit: milliseconds . -The default value is 0, which means unspecified by this router. -.It Cm \&retrans -(num) Retrans Timer field -.Pq unit: milliseconds . -The default value is 0, which means unspecified by this router. -.El -.Pp -The following items are for ICMPv6 prefix information option, -which will be attached to router advertisement header. -These items can be omitted, then -.Nm rtadvd -will automatically get appropriate prefixes from the kernel's routing table, -and advertise the prefixes with the default parameters. -Keywords other than -.Cm clockskew -and -.Cm noifprefix -can be augmented with a number, like -.Dq Li prefix2 , -to specify multiple prefixes. -.Bl -tag -width indent -.It Cm \&noifprefix -(bool) Specifies no prefix on the network interfaces will be advertised. -By default -.Nm rtadvd -automatically gathers on-link prefixes from all of the network interfaces -and advertise them. -The -.Cm noifprefix -disables that behavior. -If this is specified and no -.Cm addr -keyword is specified, no prefix information option will be included in the -message. -.It Cm \&clockskew -(num) Time skew to adjust link propagation delays and clock skews -between routers on the link -.Pq unit: seconds . -This value is used in consistency check for locally-configured and -advertised prefix lifetimes, and has its meaning when the local router -configures a prefix on the link with a lifetime that decrements in -real time. -If the value is 0, it means the consistency check will be skipped -for such prefixes. -The default value is 0. -.It Cm \&prefixlen -(num) Prefix length field. -The default value is 64. -.It Cm \&pinfoflags -(str or num) A 8-bit flags field in prefix information option. -This field can be specified either as a case-sensitive string or as an -integer. -A string consists of characters each of which corresponds to a -particular flag bit(s). -An integer should be the logical OR of all enabled bits. -Bit 7 -.Po -.Li 'l' or 0x80 -.Pc -means On-link flag bit, -and Bit 6 -.Po -.Li 'a' or 0x40 -.Pc -means Autonomous address-configuration flag bit. -The default value is "la" or 0xc0, i.e., both bits are set. -.It Cm \&addr -(str) The address filled into Prefix field. -Since -.Dq \&: -is used for -.Xr termcap 5 -file format as well as IPv6 numeric address, the field MUST be quoted by -doublequote character. -.It Cm \&vltime -(num) Valid lifetime field -.Pq unit: seconds . -The default value is 2592000 (30 days). -.It Cm \&vltimedecr -(bool) This item means the advertised valid lifetime will decrement -in real time, which is disabled by default. -.It Cm \&pltime -(num) Preferred lifetime field -.Pq unit: seconds . -The default value is 604800 (7 days). -.It Cm \&pltimedecr -(bool) This item means the advertised preferred lifetime will decrement -in real time, which is disabled by default. -.El -.Pp -The following item is for ICMPv6 MTU option, -which will be attached to router advertisement header. -This item can be omitted, then -.Nm rtadvd -will use the default value. -.Bl -tag -width indent -.It Cm \&mtu -(num or str) MTU (maximum transmission unit) field. -If 0 is specified, it means that the option will not be included. -The default value is 0. -If the special string -.Dq auto -is specified for this item, MTU option will be included and its value -will be set to the interface MTU automatically. -.El -.Pp -The following item controls ICMPv6 source link-layer address option, -which will be attached to router advertisement header. -As noted above, you can just omit the item, then -.Nm rtadvd -will use the default value. -.Bl -tag -width indent -.It Cm \&nolladdr -(bool) By default -.Po -if -.Cm \&nolladdr -is not specified -.Pc , -.Xr rtadvd 8 -will try to get link-layer address for the interface from the kernel, -and attach that in source link-layer address option. -If this capability exists, -.Xr rtadvd 8 -will not attach source link-layer address option to -router advertisement packets. -.El -.Pp -The following item controls ICMPv6 home agent information option, -which was defined with mobile IPv6 support. -It will be attached to router advertisement header just like other options do. -.Bl -tag -width indent -.It Cm \&hapref -(num) Specifies home agent preference. -If set to non-zero, -.Cm \&hatime -must be present as well. -.It Cm \&hatime -(num) Specifies home agent lifetime. -.El -.Pp -When mobile IPv6 support is turned on for -.Xr rtadvd 8 , -advertisement interval option will be attached to router advertisement -packet, by configuring -.Cm \&maxinterval -explicitly. -.Pp -The following items are for ICMPv6 route information option, -which will be attached to router advertisement header. -These items are optional. -Each items can be augmented with number, like -.Dq Li rtplen2 , -to specify multiple routes. -.Bl -tag -width indent -.It Cm \&rtprefix -(str) The prefix filled into the Prefix field of route information option. -Since -.Dq \&: -is used for -.Xr termcap 5 -file format as well as IPv6 numeric address, the field MUST be quoted by -doublequote character. -.It Cm \&rtplen -(num) Prefix length field in route information option. -The default value is 64. -.It Cm \&rtflags -(str or num) A 8-bit flags field in route information option. -Currently only the preference values are defined. -The notation is same as that of the raflags field. -Bit 4 -.Po -.Li 0x10 -.Pc -and -Bit 3 -.Po -.Li 0x08 -.Pc -are used to encode the route preference for the route. -The default value is 0x00, i.e., medium preference. -.It Cm \&rtltime -(num) route lifetime field in route information option. -.Pq unit: seconds . -Since the specification does not define the default value of this -item, the value for this item should be specified by hand. -However, -.Nm rtadvd -allows this item to be unspecified, and uses the router lifetime -as the default value in such a case, just for compatibility with an -old version of the program. -.El -.Pp -In the above list, each keyword beginning with -.Dq Li rt -could be replaced with the one beginning with -.Dq Li rtr -for backward compatibility reason. -For example, -.Cm rtrplen -is accepted instead of -.Cm rtplen . -However, keywords that start with -.Dq Li rtr -have basically been obsoleted, and should not be used any more. -.Pp -The following items are for ICMPv6 Recursive DNS Server Option and -DNS Search List Option -.Pq RFC 6106 , -which will be attached to router advertisement header. -These items are optional. -.Bl -tag -width indent -.It Cm \&rdnss -(str) The IPv6 address of one or more recursive DNS servers. -The argument must be inside double quotes. -Multiple DNS servers can be specified in a comma-separated string. -If different lifetimes are needed for different servers, -separate entries can be given by using -.Cm rdnss , -.Cm rdnss0 , -.Cm rdnss1 , -.Cm rdnss2 ... -options with corresponding -.Cm rdnssltime , -.Cm rdnssltime0 , -.Cm rdnssltime1 , -.Cm rdnssltime2 ... -entries. -Note that the maximum number of servers depends on the receiver side. -See also -.Xr resolver 5 -manual page for resolver implementation in -.Fx . -.It Cm \&rdnssltime -The lifetime of the -.Cm rdnss -DNS server entries. -The default value is 3/2 of the interval time. -.It Cm \&dnssl -(str) One or more domain names in a comma-separated string. -These domain names will be used when making DNS queries on a -non-fully-qualified domain name. -If different lifetimes are needed for different domains, separate entries -can be given by using -.Cm dnssl , -.Cm dnssl0 , -.Cm dnssl1 , -.Cm dnssl2 ... -options with corresponding -.Cm dnsslltime , -.Cm dnsslltime0 , -.Cm dnsslltime1 , -.Cm dnsslltime2 ... -entries. -Note that the maximum number of names depends on the receiver side. -See also -.Xr resolver 5 -manual page for resolver implementation in -.Fx . -.It Cm \&dnsslltime -The lifetime of the -.Cm dnssl -DNS search list entries. -The default value is 3/2 of the interval time. -.El -.Pp -You can also refer one line from another by using -.Cm tc -capability. -See -.Xr termcap 5 -for details on the capability. -.Sh EXAMPLES -As presented above, all of the advertised parameters have default values -defined in specifications, and hence you usually do not have to set them -by hand, unless you need special non-default values. -It can cause interoperability problem if you use an ill-configured -parameter. -.Pp -To override a configuration parameter, you can specify the parameter alone. -With the following configuration, -.Xr rtadvd 8 -overrides the router lifetime parameter for the -.Li ne0 -interface. -.Bd -literal -offset indent -ne0:\\ - :rltime#0: -.Ed -.Pp -The following example manually configures prefixes advertised from the -.Li ef0 -interface. -The configuration must be used with the -.Fl s -option to -.Xr rtadvd 8 . -.Bd -literal -offset indent -ef0:\\ - :addr="2001:db8:ffff:1000::":prefixlen#64: -.Ed -.Pp -The following example configures the -.Li wlan0 -interface and adds two DNS servers and a DNS domain search options -using the default option lifetime values. -.Bd -literal -offset indent -wlan0:\\ - :addr="2001:db8:ffff:1000::":prefixlen#64:\\ - :rdnss="2001:db8:ffff::10,2001:db8:ffff::2:43":\\ - :dnssl="example.com": -.Ed -.Pp -The following example presents the default values in an explicit manner. -The configuration is provided just for reference purposes; -YOU DO NOT NEED TO HAVE IT AT ALL. -.Bd -literal -offset indent -default:\\ - :chlim#64:raflags#0:rltime#1800:rtime#0:retrans#0:\\ - :pinfoflags="la":vltime#2592000:pltime#604800:mtu#0: -ef0:\\ - :addr="2001:db8:ffff:1000::":prefixlen#64:tc=default: -.Ed -.Sh SEE ALSO -.Xr resolver 5 , -.Xr termcap 5 , -.Xr rtadvd 8 , -.Xr rtsol 8 -.Rs -.%A Thomas Narten -.%A Erik Nordmark -.%A W. A. Simpson -.%A Hesham Soliman -.%T Neighbor Discovery for IP version 6 (IPv6) -.%R RFC 4861 -.Re -.Rs -.%A Thomas Narten -.%A Erik Nordmark -.%A W. A. Simpson -.%T Neighbor Discovery for IP version 6 (IPv6) -.%R RFC 2461 (obsoleted by RFC 4861) -.Re -.Rs -.%A Richard Draves -.%T Default Router Preferences and More-Specific Routes -.%R draft-ietf-ipngwg-router-selection-xx.txt -.Re -.Rs -.%A J. Jeong -.%A S. Park -.%A L. Beloeil -.%A S. Madanapalli -.%T IPv6 Router Advertisement Options for DNS Configuration -.%R RFC 6106 -.Re -.Sh HISTORY -The -.Xr rtadvd 8 -and the configuration file -.Nm -first appeared in WIDE Hydrangea IPv6 protocol stack kit. -.\" .Sh BUGS -.\" (to be written) diff --git a/usr.sbin/rtadvd/rtadvd.h b/usr.sbin/rtadvd/rtadvd.h deleted file mode 100644 index e7ed87f..0000000 --- a/usr.sbin/rtadvd/rtadvd.h +++ /dev/null @@ -1,298 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: rtadvd.h,v 1.26 2003/08/05 12:34:23 itojun Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#define ELM_MALLOC(p,error_action) \ - do { \ - p = malloc(sizeof(*p)); \ - if (p == NULL) { \ - syslog(LOG_ERR, "<%s> malloc failed: %s", \ - __func__, strerror(errno)); \ - error_action; \ - } \ - memset(p, 0, sizeof(*p)); \ - } while(0) - -#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ - {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}} - -#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ - {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} - -#define IN6ADDR_SITELOCAL_ALLROUTERS_INIT \ - {{{ 0xff, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}} - -extern struct sockaddr_in6 sin6_linklocal_allnodes; -extern struct sockaddr_in6 sin6_linklocal_allrouters; -extern struct sockaddr_in6 sin6_sitelocal_allrouters; - -/* - * RFC 3542 API deprecates IPV6_PKTINFO in favor of - * IPV6_RECVPKTINFO - */ -#ifndef IPV6_RECVPKTINFO -#ifdef IPV6_PKTINFO -#define IPV6_RECVPKTINFO IPV6_PKTINFO -#endif -#endif - -/* - * RFC 3542 API deprecates IPV6_HOPLIMIT in favor of - * IPV6_RECVHOPLIMIT - */ -#ifndef IPV6_RECVHOPLIMIT -#ifdef IPV6_HOPLIMIT -#define IPV6_RECVHOPLIMIT IPV6_HOPLIMIT -#endif -#endif - -/* protocol constants and default values */ -#define DEF_MAXRTRADVINTERVAL 600 -#define DEF_ADVLINKMTU 0 -#define DEF_ADVREACHABLETIME 0 -#define DEF_ADVRETRANSTIMER 0 -#define DEF_ADVCURHOPLIMIT 64 -#define DEF_ADVVALIDLIFETIME 2592000 -#define DEF_ADVPREFERREDLIFETIME 604800 - -#define MAXROUTERLIFETIME 9000 -#define MIN_MAXINTERVAL 4 -#define MAX_MAXINTERVAL 1800 -#define MIN_MININTERVAL 3 -#define MAXREACHABLETIME 3600000 - -#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 -#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 -#define MAX_FINAL_RTR_ADVERTISEMENTS 3 -#define MIN_DELAY_BETWEEN_RAS 3 -#define MAX_RA_DELAY_TIME 500000 /* usec */ - -#define PREFIX_FROM_KERNEL 1 -#define PREFIX_FROM_CONFIG 2 -#define PREFIX_FROM_DYNAMIC 3 - -struct prefix { - TAILQ_ENTRY(prefix) pfx_next; - - struct rainfo *pfx_rainfo; /* back pointer to the interface */ - /* - * Expiration timer. This is used when a prefix derived from - * the kernel is deleted. - */ - struct rtadvd_timer *pfx_timer; - - uint32_t pfx_validlifetime; /* AdvValidLifetime */ - uint32_t pfx_vltimeexpire; /* Expiration of vltime */ - uint32_t pfx_preflifetime; /* AdvPreferredLifetime */ - uint32_t pfx_pltimeexpire; /* Expiration of pltime */ - int pfx_onlinkflg; /* bool: AdvOnLinkFlag */ - int pfx_autoconfflg; /* bool: AdvAutonomousFlag */ - int pfx_prefixlen; - int pfx_origin; /* From kernel or config */ - - struct in6_addr pfx_prefix; -}; - -struct rtinfo { - TAILQ_ENTRY(rtinfo) rti_next; - - uint32_t rti_ltime; /* route lifetime */ - int rti_rtpref; /* route preference */ - int rti_prefixlen; - struct in6_addr rti_prefix; -}; - -struct rdnss_addr { - TAILQ_ENTRY(rdnss_addr) ra_next; - - struct in6_addr ra_dns; /* DNS server entry */ -}; - -struct rdnss { - TAILQ_ENTRY(rdnss) rd_next; - - TAILQ_HEAD(, rdnss_addr) rd_list; /* list of DNS servers */ - uint32_t rd_ltime; /* number of seconds valid */ -}; - -/* - * The maximum length of a domain name in a DNS search list is calculated - * by a domain name + length fields per 63 octets + a zero octet at - * the tail and adding 8 octet boundary padding. - */ -#define _DNAME_LABELENC_MAXLEN \ - (NI_MAXHOST + (NI_MAXHOST / 64 + 1) + 1) - -#define DNAME_LABELENC_MAXLEN \ - (_DNAME_LABELENC_MAXLEN + 8 - _DNAME_LABELENC_MAXLEN % 8) - -struct dnssl_addr { - TAILQ_ENTRY(dnssl_addr) da_next; - - int da_len; /* length of entry */ - char da_dom[DNAME_LABELENC_MAXLEN]; /* search domain name entry */ -}; - -struct dnssl { - TAILQ_ENTRY(dnssl) dn_next; - - TAILQ_HEAD(, dnssl_addr) dn_list; /* list of search domains */ - uint32_t dn_ltime; /* number of seconds valid */ -}; - -struct soliciter { - TAILQ_ENTRY(soliciter) sol_next; - - struct sockaddr_in6 sol_addr; -}; - -struct rainfo { - /* pointer for list */ - TAILQ_ENTRY(rainfo) rai_next; - - /* interface information */ - struct ifinfo *rai_ifinfo; - - int rai_advlinkopt; /* bool: whether include link-layer addr opt */ - int rai_advifprefix; /* bool: gather IF prefixes? */ - - /* Router configuration variables */ - uint16_t rai_lifetime; /* AdvDefaultLifetime */ - uint16_t rai_maxinterval; /* MaxRtrAdvInterval */ - uint16_t rai_mininterval; /* MinRtrAdvInterval */ - int rai_managedflg; /* AdvManagedFlag */ - int rai_otherflg; /* AdvOtherConfigFlag */ - - int rai_rtpref; /* router preference */ - uint32_t rai_linkmtu; /* AdvLinkMTU */ - uint32_t rai_reachabletime; /* AdvReachableTime */ - uint32_t rai_retranstimer; /* AdvRetransTimer */ - uint8_t rai_hoplimit; /* AdvCurHopLimit */ - - TAILQ_HEAD(, prefix) rai_prefix;/* AdvPrefixList(link head) */ - int rai_pfxs; /* number of prefixes */ - - uint16_t rai_clockskew; /* used for consisitency check of lifetimes */ - - TAILQ_HEAD(, rdnss) rai_rdnss; /* DNS server list */ - TAILQ_HEAD(, dnssl) rai_dnssl; /* search domain list */ - TAILQ_HEAD(, rtinfo) rai_route; /* route information option (link head) */ - int rai_routes; /* number of route information options */ - /* actual RA packet data and its length */ - size_t rai_ra_datalen; - char *rai_ra_data; - - /* info about soliciter */ - TAILQ_HEAD(, soliciter) rai_soliciter; /* recent solication source */ -}; - -/* RA information list */ -extern TAILQ_HEAD(railist_head_t, rainfo) railist; - -/* - * ifi_state: - * - * (INIT) - * | - * | update_ifinfo() - * | update_persist_ifinfo() - * v - * UNCONFIGURED - * | ^ - * loadconfig()| |rm_ifinfo(), ra_output() - * (MC join)| |(MC leave) - * | | - * | | - * v | - * TRANSITIVE - * | ^ - * ra_output()| |getconfig() - * | | - * | | - * | | - * v | - * CONFIGURED - * - * - */ -#define IFI_STATE_UNCONFIGURED 0 -#define IFI_STATE_CONFIGURED 1 -#define IFI_STATE_TRANSITIVE 2 - -struct ifinfo { - TAILQ_ENTRY(ifinfo) ifi_next; - - uint16_t ifi_state; - uint16_t ifi_persist; - uint16_t ifi_ifindex; - char ifi_ifname[IFNAMSIZ]; - uint8_t ifi_type; - uint16_t ifi_flags; - uint32_t ifi_nd_flags; - uint32_t ifi_phymtu; - struct sockaddr_dl ifi_sdl; - - struct rainfo *ifi_rainfo; - struct rainfo *ifi_rainfo_trans; - uint16_t ifi_burstcount; - uint32_t ifi_burstinterval; - struct rtadvd_timer *ifi_ra_timer; - /* timestamp when the latest RA was sent */ - struct timespec ifi_ra_lastsent; - uint16_t ifi_rs_waitcount; - - /* statistics */ - uint64_t ifi_raoutput; /* # of RAs sent */ - uint64_t ifi_rainput; /* # of RAs received */ - uint64_t ifi_rainconsistent; /* # of inconsistent recv'd RAs */ - uint64_t ifi_rsinput; /* # of RSs received */ -}; - -/* Interface list */ -extern TAILQ_HEAD(ifilist_head_t, ifinfo) ifilist; - -extern char *mcastif; - -struct rtadvd_timer *ra_timeout(void *); -void ra_timer_update(void *, struct timespec *); -void ra_output(struct ifinfo *); - -int prefix_match(struct in6_addr *, int, - struct in6_addr *, int); -struct ifinfo *if_indextoifinfo(int); -struct prefix *find_prefix(struct rainfo *, - struct in6_addr *, int); -void rtadvd_set_reload(int); -void rtadvd_set_shutdown(int); diff --git a/usr.sbin/rtadvd/timer.c b/usr.sbin/rtadvd/timer.c deleted file mode 100644 index 452add4..0000000 --- a/usr.sbin/rtadvd/timer.c +++ /dev/null @@ -1,199 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: timer.c,v 1.9 2002/06/10 19:59:47 itojun Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * Copyright (C) 2011 Hiroki Sato <hrs@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/queue.h> -#include <sys/socket.h> - -#include <net/if.h> -#include <net/if_dl.h> -#include <netinet/in.h> - -#include <unistd.h> -#include <syslog.h> -#include <stdlib.h> -#include <string.h> -#include <search.h> -#include <time.h> -#include <netdb.h> - -#include "rtadvd.h" -#include "timer_subr.h" -#include "timer.h" - -struct rtadvd_timer_head_t ra_timer = - TAILQ_HEAD_INITIALIZER(ra_timer); -static struct timespec tm_limit; -static struct timespec tm_max; - -void -rtadvd_timer_init(void) -{ - /* Generate maximum time in timespec. */ - tm_limit.tv_sec = (-1) & ~((time_t)1 << ((sizeof(tm_max.tv_sec) * 8) - 1)); - tm_limit.tv_nsec = (-1) & ~((long)1 << ((sizeof(tm_max.tv_nsec) * 8) - 1)); - tm_max = tm_limit; - TAILQ_INIT(&ra_timer); -} - -void -rtadvd_update_timeout_handler(void) -{ - struct ifinfo *ifi; - - TAILQ_FOREACH(ifi, &ifilist, ifi_next) { - switch (ifi->ifi_state) { - case IFI_STATE_CONFIGURED: - case IFI_STATE_TRANSITIVE: - if (ifi->ifi_ra_timer != NULL) - continue; - - syslog(LOG_DEBUG, "<%s> add timer for %s (idx=%d)", - __func__, ifi->ifi_ifname, ifi->ifi_ifindex); - ifi->ifi_ra_timer = rtadvd_add_timer(ra_timeout, - ra_timer_update, ifi, ifi); - ra_timer_update((void *)ifi, - &ifi->ifi_ra_timer->rat_tm); - rtadvd_set_timer(&ifi->ifi_ra_timer->rat_tm, - ifi->ifi_ra_timer); - break; - case IFI_STATE_UNCONFIGURED: - if (ifi->ifi_ra_timer == NULL) - continue; - - syslog(LOG_DEBUG, - "<%s> remove timer for %s (idx=%d)", __func__, - ifi->ifi_ifname, ifi->ifi_ifindex); - rtadvd_remove_timer(ifi->ifi_ra_timer); - ifi->ifi_ra_timer = NULL; - break; - } - } - - return; -} - -struct rtadvd_timer * -rtadvd_add_timer(struct rtadvd_timer *(*timeout)(void *), - void (*update)(void *, struct timespec *), - void *timeodata, void *updatedata) -{ - struct rtadvd_timer *rat; - - if (timeout == NULL) { - syslog(LOG_ERR, - "<%s> timeout function unspecified", __func__); - exit(1); - } - - rat = malloc(sizeof(*rat)); - if (rat == NULL) { - syslog(LOG_ERR, - "<%s> can't allocate memory", __func__); - exit(1); - } - memset(rat, 0, sizeof(*rat)); - - rat->rat_expire = timeout; - rat->rat_update = update; - rat->rat_expire_data = timeodata; - rat->rat_update_data = updatedata; - rat->rat_tm = tm_max; - - /* link into chain */ - TAILQ_INSERT_TAIL(&ra_timer, rat, rat_next); - - return (rat); -} - -void -rtadvd_remove_timer(struct rtadvd_timer *rat) -{ - - if (rat == NULL) - return; - - TAILQ_REMOVE(&ra_timer, rat, rat_next); - free(rat); -} - -/* - * Check expiration for each timer. If a timer expires, - * call the expire function for the timer and update the timer. - * Return the next interval for select() call. - */ -struct timespec * -rtadvd_check_timer(void) -{ - static struct timespec returnval; - struct timespec now; - struct rtadvd_timer *rat; - - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - tm_max = tm_limit; - TAILQ_FOREACH(rat, &ra_timer, rat_next) { - if (TS_CMP(&rat->rat_tm, &now, <=)) { - if (((*rat->rat_expire)(rat->rat_expire_data) == NULL)) - continue; /* the timer was removed */ - if (rat->rat_update) - (*rat->rat_update)(rat->rat_update_data, &rat->rat_tm); - TS_ADD(&rat->rat_tm, &now, &rat->rat_tm); - } - if (TS_CMP(&rat->rat_tm, &tm_max, <)) - tm_max = rat->rat_tm; - } - if (TS_CMP(&tm_max, &tm_limit, ==)) { - /* no need to timeout */ - return (NULL); - } else if (TS_CMP(&tm_max, &now, <)) { - /* this may occur when the interval is too small */ - returnval.tv_sec = returnval.tv_nsec = 0; - } else - TS_SUB(&tm_max, &now, &returnval); - return (&returnval); -} - -void -rtadvd_set_timer(struct timespec *tm, struct rtadvd_timer *rat) -{ - struct timespec now; - - /* reset the timer */ - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - TS_ADD(&now, tm, &rat->rat_tm); - - /* update the next expiration time */ - if (TS_CMP(&rat->rat_tm, &tm_max, <)) - tm_max = rat->rat_tm; - - return; -} diff --git a/usr.sbin/rtadvd/timer.h b/usr.sbin/rtadvd/timer.h deleted file mode 100644 index 4498aaf..0000000 --- a/usr.sbin/rtadvd/timer.h +++ /dev/null @@ -1,52 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: timer.h,v 1.5 2002/05/31 13:30:38 jinmei Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -extern TAILQ_HEAD(rtadvd_timer_head_t, rtadvd_timer) ra_timer; -struct rtadvd_timer { - TAILQ_ENTRY(rtadvd_timer) rat_next; - - struct rainfo *rat_rai; - struct timespec rat_tm; - struct rtadvd_timer *(*rat_expire)(void *); - void *rat_expire_data; - void (*rat_update)(void *, struct timespec *); - void *rat_update_data; -}; - -void rtadvd_timer_init(void); -void rtadvd_update_timeout_handler(void); -struct rtadvd_timer *rtadvd_add_timer(struct rtadvd_timer *(*)(void *), - void (*)(void *, struct timespec *), void *, void *); -void rtadvd_set_timer(struct timespec *, - struct rtadvd_timer *); -void rtadvd_remove_timer(struct rtadvd_timer *); -struct timespec *rtadvd_check_timer(void); diff --git a/usr.sbin/rtadvd/timer_subr.c b/usr.sbin/rtadvd/timer_subr.c deleted file mode 100644 index 0ddf0a4..0000000 --- a/usr.sbin/rtadvd/timer_subr.c +++ /dev/null @@ -1,91 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: timer.c,v 1.9 2002/06/10 19:59:47 itojun Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/queue.h> -#include <sys/socket.h> -#include <syslog.h> -#include <stdio.h> -#include <inttypes.h> -#include <time.h> - -#include "timer.h" -#include "timer_subr.h" - -struct timespec * -rtadvd_timer_rest(struct rtadvd_timer *rat) -{ - static struct timespec returnval, now; - - clock_gettime(CLOCK_MONOTONIC_FAST, &now); - if (TS_CMP(&rat->rat_tm, &now, <=)) { - syslog(LOG_DEBUG, - "<%s> a timer must be expired, but not yet", - __func__); - returnval.tv_sec = returnval.tv_nsec = 0; - } - else - TS_SUB(&rat->rat_tm, &now, &returnval); - - return (&returnval); -} - -char * -sec2str(uint32_t s, char *buf) -{ - uint32_t day; - uint32_t hour; - uint32_t min; - uint32_t sec; - char *p; - - min = s / 60; - sec = s % 60; - - hour = min / 60; - min = min % 60; - - day = hour / 24; - hour = hour % 24; - - p = buf; - if (day > 0) - p += sprintf(p, "%" PRIu32 "d", day); - if (hour > 0) - p += sprintf(p, "%" PRIu32 "h", hour); - if (min > 0) - p += sprintf(p, "%" PRIu32 "m", min); - - if ((p == buf) || (sec > 0 && p > buf)) - sprintf(p, "%" PRIu32 "s", sec); - - return (buf); -} diff --git a/usr.sbin/rtadvd/timer_subr.h b/usr.sbin/rtadvd/timer_subr.h deleted file mode 100644 index 32e1bb1..0000000 --- a/usr.sbin/rtadvd/timer_subr.h +++ /dev/null @@ -1,59 +0,0 @@ -/* $FreeBSD$ */ -/* $KAME: timer.h,v 1.5 2002/05/31 13:30:38 jinmei Exp $ */ - -/* - * Copyright (C) 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#define SSBUFLEN 1024 - -#define TS_CMP(tsp, usp, cmp) \ - (((tsp)->tv_sec == (usp)->tv_sec) ? \ - ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ - ((tsp)->tv_sec cmp (usp)->tv_sec)) -#define TS_ADD(tsp, usp, vsp) \ - do { \ - (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ - (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ - if ((vsp)->tv_nsec >= 1000000000L) { \ - (vsp)->tv_sec++; \ - (vsp)->tv_nsec -= 1000000000L; \ - } \ - } while (0) -#define TS_SUB(tsp, usp, vsp) \ - do { \ - (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ - (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ - if ((vsp)->tv_nsec < 0) { \ - (vsp)->tv_sec--; \ - (vsp)->tv_nsec += 1000000000L; \ - } \ - } while (0) - -struct timespec *rtadvd_timer_rest(struct rtadvd_timer *); -char *sec2str(uint32_t, char *buf); |
