From 486333fcfd5f2cc27736d07dbf10d2cd0b6875e0 Mon Sep 17 00:00:00 2001 From: peter Date: Sun, 13 Jul 1997 14:26:00 +0000 Subject: kill the undead --- usr.sbin/pppd/sys-linux.c | 830 --------------------------------------------- usr.sbin/pppd/sys-str.c | 730 --------------------------------------- usr.sbin/pppd/sys-ultrix.c | 663 ------------------------------------ 3 files changed, 2223 deletions(-) delete mode 100644 usr.sbin/pppd/sys-linux.c delete mode 100644 usr.sbin/pppd/sys-str.c delete mode 100644 usr.sbin/pppd/sys-ultrix.c (limited to 'usr.sbin/pppd') diff --git a/usr.sbin/pppd/sys-linux.c b/usr.sbin/pppd/sys-linux.c deleted file mode 100644 index 306ae4a..0000000 --- a/usr.sbin/pppd/sys-linux.c +++ /dev/null @@ -1,830 +0,0 @@ -/* - * sys-linux.c - System-dependent procedures for setting up - * PPP interfaces on Linux systems - * - * Copyright (c) 1989 Carnegie Mellon University. - * All rights reserved. - * - * Redistribution and use in source and binary forms 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 Carnegie Mellon University. The name of the - * University 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* - * TODO: - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "pppd.h" -#include "ppp.h" -#include "fsm.h" -#include "ipcp.h" - -static int initdisc = -1; /* Initial TTY discipline */ -static int prev_kdebugflag = 0; -extern int kdebugflag; -extern u_long netmask; - -#define MAX_IFS 32 - -/* prototypes */ -void die __ARGS((int)); - -/* - * SET_SA_FAMILY - set the sa_family field of a struct sockaddr, - * if it exists. - */ - -#define SET_SA_FAMILY(addr, family) \ - memset ((char *) &(addr), '\0', sizeof(addr)); \ - addr.sa_family = (family); - -/* - * set_kdebugflag - Define the debugging level for the kernel - */ - -int set_kdebugflag (int requested_level) -{ - if (ioctl(fd, PPPIOCGDEBUG, &prev_kdebugflag) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGDEBUG): %m"); - return (0); - } - - if (prev_kdebugflag != requested_level) { - if (ioctl(fd, PPPIOCSDEBUG, &requested_level) < 0) { - syslog (LOG_ERR, "ioctl(PPPIOCSDEBUG): %m"); - return (0); - } - syslog(LOG_INFO, "set kernel debugging level to %d", requested_level); - } - return (1); -} - -/* - * establish_ppp - Turn the serial port into a ppp interface. - */ - -void establish_ppp (void) -{ - int pppdisc = N_PPP; - int sig = SIGIO; - - if (ioctl(fd, PPPIOCSINPSIG, &sig) == -1) { - syslog(LOG_ERR, "ioctl(PPPIOCSINPSIG): %m"); - die(1); - } - - if (ioctl(fd, TIOCEXCL, 0) < 0) { - syslog (LOG_WARNING, "ioctl(TIOCEXCL): %m"); - } - - if (ioctl(fd, TIOCGETD, &initdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCGETD): %m"); - die (1); - } - - if (ioctl(fd, TIOCSETD, &pppdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - die (1); - } - - if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die (1); - } - - set_kdebugflag (kdebugflag); -} - -/* - * disestablish_ppp - Restore the serial port to normal operation. - * This shouldn't call die() because it's called from die(). - */ - -void disestablish_ppp(void) -{ - int x; - char *s; - - if (initdisc >= 0) { - set_kdebugflag (prev_kdebugflag); - /* - * Check whether the link seems not to be 8-bit clean. - */ - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) == 0) { - s = NULL; - switch (~x & (SC_RCV_B7_0|SC_RCV_B7_1|SC_RCV_EVNP|SC_RCV_ODDP)) { - case SC_RCV_B7_0: - s = "bit 7 set to 1"; - break; - case SC_RCV_B7_1: - s = "bit 7 set to 0"; - break; - case SC_RCV_EVNP: - s = "odd parity"; - break; - case SC_RCV_ODDP: - s = "even parity"; - break; - } - if (s != NULL) { - syslog(LOG_WARNING, "Serial link is not 8-bit clean:"); - syslog(LOG_WARNING, "All received characters had %s", s); - } - } - - if (ioctl(fd, TIOCSETD, &initdisc) < 0) - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - - if (ioctl(fd, TIOCNXCL, 0) < 0) - syslog (LOG_WARNING, "ioctl(TIOCNXCL): %m"); - - initdisc = -1; - } -} - -/* - * output - Output PPP packet. - */ - -void output (int unit, unsigned char *p, int len) -{ - if (unit != 0) - MAINDEBUG((LOG_WARNING, "output: unit != 0!")); - - if (debug) - log_packet(p, len, "sent "); - - if (write(fd, p, len) < 0) { - syslog(LOG_ERR, "write: %m"); - die(1); - } -} - -/* - * read_packet - get a PPP packet from the serial device. - */ - -int read_packet (unsigned char *buf) -{ - int len; - - len = read(fd, buf, MTU + DLLHEADERLEN); - if (len < 0) { - if (errno == EWOULDBLOCK) { -#if 0 - MAINDEBUG((LOG_DEBUG, "read(fd): EWOULDBLOCK")); -#endif - return -1; - } - syslog(LOG_ERR, "read(fd): %m"); - die(1); - } - return len; -} - -/* - * ppp_send_config - configure the transmit characteristics of - * the ppp interface. - */ -void ppp_send_config (int unit,int mtu,u_long asyncmap,int pcomp,int accomp) -{ - u_int x; - struct ifreq ifr; - - MAINDEBUG ((LOG_DEBUG, "send_config: mtu = %d\n", mtu)); - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - ifr.ifr_mtu = mtu; - if (ioctl(s, SIOCSIFMTU, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m"); - quit(); - } - - MAINDEBUG ((LOG_DEBUG, "send_config: asyncmap = %lx\n", asyncmap)); - if (ioctl(fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m"); - quit(); - } - - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - quit(); - } - - x = pcomp ? x | SC_COMP_PROT : x & ~SC_COMP_PROT; - x = accomp ? x | SC_COMP_AC : x & ~SC_COMP_AC; - - MAINDEBUG ((LOG_DEBUG, "send_config: flags = %x\n", x)); - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } -} - -/* - * ppp_set_xaccm - set the extended transmit ACCM for the interface. - */ -void -ppp_set_xaccm(unit, accm) - int unit; - ext_accm accm; -{ - MAINDEBUG ((LOG_DEBUG, "set_xaccm: %08lx %08lx %08lx %08lx\n", - accm[0], accm[1], accm[2], accm[3])); - if (ioctl(fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) - syslog(LOG_WARNING, "ioctl(set extended ACCM): %m"); -} - -/* - * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. - */ -void ppp_recv_config (int unit,int mru,u_long asyncmap,int pcomp,int accomp) -{ - u_int x; - - MAINDEBUG ((LOG_DEBUG, "recv_config: mru = %d\n", mru)); - if (ioctl(fd, PPPIOCSMRU, (caddr_t) &mru) < 0) - syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m"); - - MAINDEBUG ((LOG_DEBUG, "recv_config: asyncmap = %lx\n", asyncmap)); - if (ioctl(fd, PPPIOCRASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCRASYNCMAP): %m"); - quit(); - } - - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - quit(); - } - - x = !accomp? x | SC_REJ_COMP_AC: x &~ SC_REJ_COMP_AC; - MAINDEBUG ((LOG_DEBUG, "recv_config: flags = %x\n", x)); - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } -} - -/* - * sifvjcomp - config tcp header compression - */ - -int sifvjcomp (int u, int vjcomp, int cidcomp, int maxcid) -{ - u_int x; - - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - return 0; - } - - x = vjcomp ? x | SC_COMP_TCP : x &~ SC_COMP_TCP; - x = cidcomp ? x & ~SC_NO_TCP_CCID : x | SC_NO_TCP_CCID; - - if(ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - - if (vjcomp) { - if (ioctl (fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) { - syslog (LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - } - - return 1; -} - -/* - * sifup - Config the interface up and enable IP packets to pass. - */ - -int sifup (int u) -{ - struct ifreq ifr; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - - ifr.ifr_flags |= (IFF_UP | IFF_POINTOPOINT); - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifdown - Config the interface down and disable IP. - */ - -int sifdown (int u) -{ - struct ifreq ifr; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - - ifr.ifr_flags &= ~IFF_UP; - ifr.ifr_flags |= IFF_POINTOPOINT; - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifaddr - Config the interface IP addresses and netmask. - */ - -int sifaddr (int unit, int our_adr, int his_adr, int net_mask) -{ - struct ifreq ifr; - struct rtentry rt; - - SET_SA_FAMILY (ifr.ifr_addr, AF_INET); - SET_SA_FAMILY (ifr.ifr_dstaddr, AF_INET); - SET_SA_FAMILY (ifr.ifr_netmask, AF_INET); - - strncpy (ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); -/* - * Set our IP address - */ - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = our_adr; - if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) { - if (errno != EEXIST) - syslog (LOG_ERR, "ioctl(SIOCAIFADDR): %m"); - else - syslog (LOG_WARNING, "ioctl(SIOCAIFADDR): Address already exists"); - return (0); - } -/* - * Set the gateway address - */ - ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = his_adr; - if (ioctl(s, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) { - syslog (LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m"); - return (0); - } -/* - * Set the netmask - */ - if (net_mask != 0) { - ((struct sockaddr_in *) &ifr.ifr_netmask)->sin_addr.s_addr = net_mask; - if (ioctl(s, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { - syslog (LOG_ERR, "ioctl(SIOCSIFNETMASK): %m"); - return (0); - } - } -/* - * Add the device route - */ - memset (&rt, '\0', sizeof (rt)); - - SET_SA_FAMILY (rt.rt_dst, AF_INET); - SET_SA_FAMILY (rt.rt_gateway, AF_INET); - rt.rt_dev = ifname; /* MJC */ - - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = 0; - ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = his_adr; - rt.rt_flags = RTF_UP | RTF_HOST; - - if (ioctl(s, SIOCADDRT, &rt) < 0) { - syslog (LOG_ERR, "ioctl(SIOCADDRT) device route: %m"); - return (0); - } - return 1; -} - -/* - * cifaddr - Clear the interface IP addresses, and delete routes - * through the interface if possible. - */ - -int cifaddr (int unit, int our_adr, int his_adr) -{ - struct rtentry rt; -/* - * Delete the route through the device - */ - memset (&rt, '\0', sizeof (rt)); - - SET_SA_FAMILY (rt.rt_dst, AF_INET); - SET_SA_FAMILY (rt.rt_gateway, AF_INET); - rt.rt_dev = ifname; /* MJC */ - - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = 0; - ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = his_adr; - rt.rt_flags = RTF_UP | RTF_HOST; - - if (ioctl(s, SIOCDELRT, &rt) < 0) { - syslog (LOG_ERR, "ioctl(SIOCDELRT) device route: %m"); - return (0); - } - return 1; -} - -/* - * path_to_route - determine the path to the proc file system data - */ - -FILE *route_fd = (FILE *) 0; -static char route_buffer [100]; - -static char *path_to_route (void); -static int open_route_table (void); -static void close_route_table (void); -static int read_route_table (struct rtentry *rt); -static int defaultroute_exists (void); - -/* - * path_to_route - find the path to the route tables in the proc file system - */ - -static char *path_to_route (void) -{ - struct mntent *mntent; - FILE *fp; - - fp = fopen (MOUNTED, "r"); - if (fp != 0) { - while ((mntent = getmntent (fp)) != 0) { - if (strcmp (mntent->mnt_type, MNTTYPE_IGNORE) == 0) - continue; - - if (strcmp (mntent->mnt_type, "proc") == 0) { - strncpy (route_buffer, mntent->mnt_dir, - sizeof (route_buffer)-10); - route_buffer [sizeof (route_buffer)-10] = '\0'; - strcat (route_buffer, "/net/route"); - - fclose (fp); - return (route_buffer); - } - } - fclose (fp); - } - syslog (LOG_ERR, "proc file system not mounted"); - return 0; -} - -/* - * open_route_table - open the interface to the route table - */ - -static int open_route_table (void) -{ - char *path; - - if (route_fd != (FILE *) 0) - close_route_table(); - - path = path_to_route(); - if (path == NULL) - return 0; - - route_fd = fopen (path, "r"); - if (route_fd == (FILE *) 0) { - syslog (LOG_ERR, "can not open %s: %m", path); - return 0; - } - - /* read and discard the header line. */ - if (fgets (route_buffer, sizeof (route_buffer), route_fd) == (char *) 0) { - close_route_table(); - return 0; - } - return 1; -} - -/* - * close_route_table - close the interface to the route table - */ - -static void close_route_table (void) -{ - if (route_fd != (FILE *) 0) { - fclose (route_fd); - route_fd = (FILE *) 0; - } -} - -/* - * read_route_table - read the next entry from the route table - */ - -static int read_route_table (struct rtentry *rt) -{ - static char delims[] = " \t\n"; - char *dev_ptr, *ptr, *dst_ptr, *gw_ptr, *flag_ptr; - - if (fgets (route_buffer, sizeof (route_buffer), route_fd) == (char *) 0) - return 0; - - memset (rt, '\0', sizeof (struct rtentry)); - - dev_ptr = strtok (route_buffer, delims); /* interface name */ - dst_ptr = strtok (NULL, delims); /* destination address */ - gw_ptr = strtok (NULL, delims); /* gateway */ - flag_ptr = strtok (NULL, delims); /* flags */ -#if 0 - ptr = strtok (NULL, delims); /* reference count */ - ptr = strtok (NULL, delims); /* useage count */ - ptr = strtok (NULL, delims); /* metric */ - ptr = strtok (NULL, delims); /* mask */ -#endif - - ((struct sockaddr_in *) &rt->rt_dst)->sin_addr.s_addr = - strtoul (dst_ptr, NULL, 16); - - ((struct sockaddr_in *) &rt->rt_gateway)->sin_addr.s_addr = - strtoul (gw_ptr, NULL, 16); - - rt->rt_flags = (short) strtoul (flag_ptr, NULL, 16); - rt->rt_dev = dev_ptr; - - return 1; -} - -/* - * defaultroute_exists - determine if there is a default route - */ - -static int defaultroute_exists (void) -{ - struct rtentry rt; - int result = 0; - - if (!open_route_table()) - return 0; - - while (read_route_table(&rt) != 0) { - if (rt.rt_flags & RTF_UP == 0) - continue; - - if (((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr == 0L) { - syslog (LOG_ERR, - "ppp not replacing existing default route to %s[%s]", - rt.rt_dev, - inet_ntoa (((struct sockaddr_in *) &rt.rt_gateway)-> - sin_addr.s_addr)); - result = 1; - break; - } - } - close_route_table(); - return result; -} - -/* - * sifdefaultroute - assign a default route through the address given. - */ - -int sifdefaultroute (int unit, int gateway) -{ - struct rtentry rt; - - if (defaultroute_exists()) - return 0; - - memset (&rt, '\0', sizeof (rt)); - SET_SA_FAMILY (rt.rt_dst, AF_INET); - SET_SA_FAMILY (rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = gateway; - - rt.rt_flags = RTF_UP | RTF_GATEWAY; - if (ioctl(s, SIOCADDRT, &rt) < 0) { - syslog (LOG_ERR, "default route ioctl(SIOCADDRT): %m"); - return 0; - } - return 1; -} - -/* - * cifdefaultroute - delete a default route through the address given. - */ - -int cifdefaultroute (int unit, int gateway) -{ - struct rtentry rt; - - SET_SA_FAMILY (rt.rt_dst, AF_INET); - SET_SA_FAMILY (rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = gateway; - - rt.rt_flags = RTF_UP | RTF_GATEWAY; - if (ioctl(s, SIOCDELRT, &rt) < 0) { - syslog (LOG_ERR, "default route ioctl(SIOCDELRT): %m"); - return 0; - } - return 1; -} - -/* - * sifproxyarp - Make a proxy ARP entry for the peer. - */ - -int sifproxyarp (int unit, u_long his_adr) -{ - struct arpreq arpreq; - - memset (&arpreq, '\0', sizeof(arpreq)); -/* - * Get the hardware address of an interface on the same subnet - * as our local address. - */ - if (!get_ether_addr(his_adr, &arpreq.arp_ha)) { - syslog(LOG_ERR, "Cannot determine ethernet address for proxy ARP"); - return 0; - } - - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = his_adr; - arpreq.arp_flags = ATF_PERM | ATF_PUBL; - - if (ioctl(s, SIOCSARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSARP): %m"); - return 0; - } - return 1; -} - -/* - * cifproxyarp - Delete the proxy ARP entry for the peer. - */ - -int cifproxyarp (int unit, u_long his_adr) -{ - struct arpreq arpreq; - - memset (&arpreq, '\0', sizeof(arpreq)); - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = his_adr; - if (ioctl(s, SIOCDARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_WARNING, "ioctl(SIOCDARP): %m"); - return 0; - } - return 1; -} - -/* - * get_ether_addr - get the hardware address of an interface on the - * the same subnet as ipaddr. - */ - -int get_ether_addr (u_long ipaddr, struct sockaddr *hwaddr) -{ - struct ifreq *ifr, *ifend, *ifp; - int i; - u_long ina, mask; - struct sockaddr_dl *dla; - struct ifreq ifreq; - struct ifconf ifc; - struct ifreq ifs[MAX_IFS]; - - ifc.ifc_len = sizeof(ifs); - ifc.ifc_req = ifs; - if (ioctl(s, SIOCGIFCONF, &ifc) < 0) { - syslog(LOG_ERR, "ioctl(SIOCGIFCONF): %m"); - return 0; - } - MAINDEBUG ((LOG_DEBUG, "proxy arp: scanning %d interfaces for IP %s", - ifc.ifc_len / sizeof(struct ifreq), ip_ntoa(ipaddr))); -/* - * Scan through looking for an interface with an Internet - * address on the same subnet as `ipaddr'. - */ - ifend = ifs + (ifc.ifc_len / sizeof(struct ifreq)); - for (ifr = ifc.ifc_req; ifr < ifend; ifr++) { - if (ifr->ifr_addr.sa_family == AF_INET) { - ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr; - strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); - MAINDEBUG ((LOG_DEBUG, "proxy arp: examining interface %s", - ifreq.ifr_name)); -/* - * Check that the interface is up, and not point-to-point - * or loopback. - */ - if (ioctl(s, SIOCGIFFLAGS, &ifreq) < 0) - continue; - if ((ifreq.ifr_flags & - (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP|IFF_BROADCAST)) - continue; -/* - * Get its netmask and check that it's on the right subnet. - */ - if (ioctl(s, SIOCGIFNETMASK, &ifreq) < 0) - continue; - mask = ((struct sockaddr_in *) &ifreq.ifr_addr)->sin_addr.s_addr; - MAINDEBUG ((LOG_DEBUG, "proxy arp: interface addr %s mask %lx", - ip_ntoa(ina), ntohl(mask))); - if (((ipaddr ^ ina) & mask) != 0) - continue; - break; - } - } - - if (ifr >= ifend) - return 0; - - syslog(LOG_INFO, "found interface %s for proxy arp", ifreq.ifr_name); -/* - * Now get the hardware address. - */ - if (ioctl (s, SIOCGIFHWADDR, &ifreq) < 0) { - syslog(LOG_ERR, "SIOCGIFHWADDR(%s): %m", ifreq.ifr_name); - return 0; - } - - hwaddr->sa_family = ARPHRD_ETHER; -#ifndef old_ifr_hwaddr - memcpy (&hwaddr->sa_data, &ifreq.ifr_hwaddr, ETH_ALEN); -#else - memcpy (&hwaddr->sa_data, &ifreq.ifr_hwaddr.sa_data, ETH_ALEN); -#endif - - MAINDEBUG ((LOG_DEBUG, - "proxy arp: found hwaddr %02x:%02x:%02x:%02x:%02x:%02x", - (int) ((unsigned char *) &hwaddr->sa_data)[0], - (int) ((unsigned char *) &hwaddr->sa_data)[1], - (int) ((unsigned char *) &hwaddr->sa_data)[2], - (int) ((unsigned char *) &hwaddr->sa_data)[3], - (int) ((unsigned char *) &hwaddr->sa_data)[4], - (int) ((unsigned char *) &hwaddr->sa_data)[5])); - return 1; -} - -/* - * ppp_available - check whether the system has any ppp interfaces - * (in fact we check whether we can do an ioctl on ppp0). - */ - -int ppp_available(void) -{ - int s, ok; - struct ifreq ifr; - - s = socket(AF_INET, SOCK_DGRAM, 0); - if (s < 0) - return 1; /* can't tell - maybe we're not root */ - - strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name)); - ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0; - close(s); - - return ok; -} - -int -logwtmp(line, name, host) - char *line, *name, *host; -{ - struct utmp ut; - - memset (&ut, 0, sizeof (ut)); - (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); - (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); - (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); - (void)time(&ut.ut_time); - - pututline (&ut); /* Write the line to the proper place */ - endutent(); /* Indicate operation is complete */ -} diff --git a/usr.sbin/pppd/sys-str.c b/usr.sbin/pppd/sys-str.c deleted file mode 100644 index c197d4b..0000000 --- a/usr.sbin/pppd/sys-str.c +++ /dev/null @@ -1,730 +0,0 @@ -/* - * sys-str.c - System-dependent procedures for setting up - * PPP interfaces on systems which use the STREAMS ppp interface. - * - * Copyright (c) 1989 Carnegie Mellon University. - * All rights reserved. - * - * Redistribution and use in source and binary forms 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 Carnegie Mellon University. The name of the - * University 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* - * TODO: - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "pppd.h" -#include "ppp.h" -#include - -#ifndef ifr_mtu -#define ifr_mtu ifr_metric -#endif - -#define MAXMODULES 10 /* max number of module names to save */ -static struct modlist { - char modname[FMNAMESZ+1]; -} str_modules[MAXMODULES]; -static int str_module_count = 0; -static int pushed_ppp; - -extern int hungup; /* has the physical layer been disconnected? */ -extern int kdebugflag; - -#define PAI_FLAGS_B7_0 0x100 -#define PAI_FLAGS_B7_1 0x200 -#define PAI_FLAGS_PAR_EVEN 0x400 -#define PAI_FLAGS_PAR_ODD 0x800 -#define PAI_FLAGS_HIBITS 0xF00 - -/* - * ppp_available - check if this kernel supports PPP. - */ -int -ppp_available() -{ - int fd, ret; - - fd = open("/dev/tty", O_RDONLY, 0); - if (fd < 0) - return 1; /* can't find out - assume we have ppp */ - ret = ioctl(fd, I_FIND, "pppasync") >= 0; - close(fd); - return ret; -} - - -/* - * establish_ppp - Turn the serial port into a ppp interface. - */ -void -establish_ppp() -{ - /* go through and save the name of all the modules, then pop em */ - for (;;) { - if (ioctl(fd, I_LOOK, str_modules[str_module_count].modname) < 0 || - ioctl(fd, I_POP, 0) < 0) - break; - MAINDEBUG((LOG_DEBUG, "popped stream module : %s", - str_modules[str_module_count].modname)); - str_module_count++; - } - - /* now push the async/fcs module */ - if (ioctl(fd, I_PUSH, "pppasync") < 0) { - syslog(LOG_ERR, "ioctl(I_PUSH, ppp_async): %m"); - die(1); - } - /* finally, push the ppp_if module that actually handles the */ - /* network interface */ - if (ioctl(fd, I_PUSH, "pppif") < 0) { - syslog(LOG_ERR, "ioctl(I_PUSH, ppp_if): %m"); - die(1); - } - pushed_ppp = 1; - if (ioctl(fd, I_SETSIG, S_INPUT) < 0) { - syslog(LOG_ERR, "ioctl(I_SETSIG, S_INPUT): %m"); - die(1); - } - /* read mode, message non-discard mode */ - if (ioctl(fd, I_SRDOPT, RMSGN) < 0) { - syslog(LOG_ERR, "ioctl(I_SRDOPT, RMSGN): %m"); - die(1); - } - /* Flush any waiting messages, or we'll never get SIGPOLL */ - if (ioctl(fd, I_FLUSH, FLUSHRW) < 0) { - syslog(LOG_ERR, "ioctl(I_FLUSH, FLUSHRW): %m"); - die(1); - } - /* - * Find out which interface we were given. - * (ppp_if handles this ioctl) - */ - if (ioctl(fd, SIOCGETU, &ifunit) < 0) { - syslog(LOG_ERR, "ioctl(SIOCGETU): %m"); - die(1); - } - - /* Set debug flags in driver */ - if (ioctl(fd, SIOCSIFDEBUG, &kdebugflag) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFDEBUG): %m"); - } -} - -/* - * disestablish_ppp - Restore the serial port to normal operation. - * It attempts to reconstruct the stream with the previously popped - * modules. This shouldn't call die() because it's called from die(). - */ -void -disestablish_ppp() -{ - int flags; - char *s; - - if (hungup) { - /* we can't push or pop modules after the stream has hung up */ - str_module_count = 0; - return; - } - - if (pushed_ppp) { - /* - * Check whether the link seems not to be 8-bit clean. - */ - if (ioctl(fd, SIOCGIFDEBUG, (caddr_t) &flags) == 0) { - s = NULL; - switch (~flags & PAI_FLAGS_HIBITS) { - case PAI_FLAGS_B7_0: - s = "bit 7 set to 1"; - break; - case PAI_FLAGS_B7_1: - s = "bit 7 set to 0"; - break; - case PAI_FLAGS_PAR_EVEN: - s = "odd parity"; - break; - case PAI_FLAGS_PAR_ODD: - s = "even parity"; - break; - } - if (s != NULL) { - syslog(LOG_WARNING, "Serial link is not 8-bit clean:"); - syslog(LOG_WARNING, "All received characters had %s", s); - } - } - } - - while (ioctl(fd, I_POP, 0) == 0) /* pop any we pushed */ - ; - pushed_ppp = 0; - - for (; str_module_count > 0; str_module_count--) { - if (ioctl(fd, I_PUSH, str_modules[str_module_count-1].modname)) { - syslog(LOG_WARNING, "str_restore: couldn't push module %s: %m", - str_modules[str_module_count-1].modname); - } else { - MAINDEBUG((LOG_INFO, "str_restore: pushed module %s", - str_modules[str_module_count-1].modname)); - } - } -} - - -/* - * output - Output PPP packet. - */ -void -output(unit, p, len) - int unit; - u_char *p; - int len; -{ - struct strbuf str; - - if (unit != 0) - MAINDEBUG((LOG_WARNING, "output: unit != 0!")); - if (debug) - log_packet(p, len, "sent "); - - str.len = len; - str.buf = (caddr_t) p; - if(putmsg(fd, NULL, &str, 0) < 0) { - syslog(LOG_ERR, "putmsg: %m"); - die(1); - } -} - - -/* - * read_packet - get a PPP packet from the serial device. - */ -int -read_packet(buf) - u_char *buf; -{ - struct strbuf str; - int len, i; - - str.maxlen = MTU+DLLHEADERLEN; - str.buf = (caddr_t) buf; - i = 0; - len = getmsg(fd, NULL, &str, &i); - if (len < 0) { - if (errno == EAGAIN || errno == EWOULDBLOCK) { - return -1; - } - syslog(LOG_ERR, "getmsg(fd) %m"); - die(1); - } - if (len) - MAINDEBUG((LOG_DEBUG, "getmsg returned 0x%x",len)); - - if (str.len < 0) { - MAINDEBUG((LOG_DEBUG, "getmsg short return length %d", str.len)); - return -1; - } - - return str.len; -} - - -/* - * ppp_send_config - configure the transmit characteristics of - * the ppp interface. - */ -void -ppp_send_config(unit, mtu, asyncmap, pcomp, accomp) - int unit, mtu; - u_long asyncmap; - int pcomp, accomp; -{ - char c; - struct ifreq ifr; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - ifr.ifr_mtu = mtu; - if (ioctl(s, SIOCSIFMTU, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m"); - quit(); - } - - if(ioctl(fd, SIOCSIFASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFASYNCMAP): %m"); - quit(); - } - - c = (pcomp? 1: 0); - if(ioctl(fd, SIOCSIFCOMPPROT, &c) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m"); - quit(); - } - - c = (accomp? 1: 0); - if(ioctl(fd, SIOCSIFCOMPAC, &c) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m"); - quit(); - } -} - - -/* - * ppp_set_xaccm - set the extended transmit ACCM for the interface. - */ -void -ppp_set_xaccm(unit, accm) - int unit; - ext_accm accm; -{ - if (ioctl(fd, SIOCSIFXASYNCMAP, accm) < 0 && errno != ENOTTY) - syslog(LOG_WARNING, "ioctl(set extended ACCM): %m"); -} - - -/* - * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. - */ -void -ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) - int unit, mru; - u_long asyncmap; - int pcomp, accomp; -{ - char c; - - if (ioctl(fd, SIOCSIFMRU, &mru) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFMRU): %m"); - } - - if (ioctl(fd, SIOCSIFRASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFRASYNCMAP): %m"); - } - - c = 2 + (pcomp? 1: 0); - if(ioctl(fd, SIOCSIFCOMPPROT, &c) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFCOMPPROT): %m"); - } - - c = 2 + (accomp? 1: 0); - if (ioctl(fd, SIOCSIFCOMPAC, &c) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFCOMPAC): %m"); - } -} - -/* - * sifvjcomp - config tcp header compression - */ -int -sifvjcomp(u, vjcomp, cidcomp, maxcid) - int u, vjcomp, cidcomp, maxcid; -{ - char x; - - x = (vjcomp? 1: 0) + (cidcomp? 0: 2) + (maxcid << 4); - if (ioctl(fd, SIOCSIFVJCOMP, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFVJCOMP): %m"); - return 0; - } - return 1; -} - -/* - * sifup - Config the interface up. - */ -int -sifup(u) - int u; -{ - struct ifreq ifr; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - ifr.ifr_flags |= IFF_UP; - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifdown - Config the interface down. - */ -int -sifdown(u) - int u; -{ - struct ifreq ifr; - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - ifr.ifr_flags &= ~IFF_UP; - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * SET_SA_FAMILY - initialize a struct sockaddr, setting the sa_family field. - */ -#define SET_SA_FAMILY(addr, family) \ - BZERO((char *) &(addr), sizeof(addr)); \ - addr.sa_family = (family); - -/* - * sifaddr - Config the interface IP addresses and netmask. - */ -int -sifaddr(u, o, h, m) - int u; - u_long o, h, m; -{ - int ret; - struct ifreq ifr; - - ret = 1; - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - SET_SA_FAMILY(ifr.ifr_addr, AF_INET); - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o; - if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFADDR): %m"); - ret = 0; - } - ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h; - if (ioctl(s, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m"); - ret = 0; - } - if (m != 0) { - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m; - syslog(LOG_INFO, "Setting interface mask to %s\n", ip_ntoa(m)); - if (ioctl(s, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFNETMASK): %m"); - ret = 0; - } - } - return ret; -} - -/* - * cifaddr - Clear the interface IP addresses, and delete routes - * through the interface if possible. - */ -int -cifaddr(u, o, h) - int u; - u_long o, h; -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = h; - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = o; - rt.rt_flags = RTF_HOST; - if (ioctl(s, SIOCDELRT, (caddr_t) &rt) < 0) { - syslog(LOG_ERR, "ioctl(SIOCDELRT): %m"); - return 0; - } - return 1; -} - -/* - * sifdefaultroute - assign a default route through the address given. - */ -int -sifdefaultroute(u, g) - int u; - u_long g; -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(s, SIOCADDRT, &rt) < 0) { - syslog(LOG_ERR, "default route ioctl(SIOCADDRT): %m"); - return 0; - } - return 1; -} - -/* - * cifdefaultroute - delete a default route through the address given. - */ -int -cifdefaultroute(u, g) - int u; - u_long g; -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(s, SIOCDELRT, &rt) < 0) { - syslog(LOG_ERR, "default route ioctl(SIOCDELRT): %m"); - return 0; - } - return 1; -} - -/* - * sifproxyarp - Make a proxy ARP entry for the peer. - */ -int -sifproxyarp(unit, hisaddr) - int unit; - u_long hisaddr; -{ - struct arpreq arpreq; - - BZERO(&arpreq, sizeof(arpreq)); - - /* - * Get the hardware address of an interface on the same subnet - * as our local address. - */ - if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) { - syslog(LOG_WARNING, "Cannot determine ethernet address for proxy ARP"); - return 0; - } - - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; - arpreq.arp_flags = ATF_PERM | ATF_PUBL; - if (ioctl(s, SIOCSARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSARP): %m"); - return 0; - } - - return 1; -} - -/* - * cifproxyarp - Delete the proxy ARP entry for the peer. - */ -int -cifproxyarp(unit, hisaddr) - int unit; - u_long hisaddr; -{ - struct arpreq arpreq; - - BZERO(&arpreq, sizeof(arpreq)); - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; - if (ioctl(s, SIOCDARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_ERR, "ioctl(SIOCDARP): %m"); - return 0; - } - return 1; -} - -/* - * get_ether_addr - get the hardware address of an interface on the - * the same subnet as ipaddr. Code borrowed from myetheraddr.c - * in the cslip-2.6 distribution, which is subject to the following - * copyright notice (which also applies to logwtmp below): - * - * Copyright (c) 1990, 1992 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: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#include -#include -#include -#include - -/* XXX SunOS 4.1 defines this and 3.5 doesn't... */ -#ifdef _nlist_h -#define SUNOS4 -#endif - -#ifdef SUNOS4 -#include -#endif -#include - -/* Cast a struct sockaddr to a structaddr_in */ -#define SATOSIN(sa) ((struct sockaddr_in *)(sa)) - -/* Determine if "bits" is set in "flag" */ -#define ALLSET(flag, bits) (((flag) & (bits)) == (bits)) - -static struct nlist nl[] = { -#define N_IFNET 0 - { "_ifnet" }, - { 0 } -}; - -static void kread(); - -int -get_ether_addr(ipaddr, hwaddr) - u_long ipaddr; - struct sockaddr *hwaddr; -{ - register kvm_t *kd; - register struct ifnet *ifp; - register struct arpcom *ac; - struct arpcom arpcom; - struct in_addr *inp; -#ifdef SUNOS4 - register struct ifaddr *ifa; - register struct in_ifaddr *in; - union { - struct ifaddr ifa; - struct in_ifaddr in; - } ifaddr; -#endif - u_long addr, mask; - - /* Open kernel memory for reading */ - kd = kvm_open(0, 0, 0, O_RDONLY, NULL); - if (kd == 0) { - syslog(LOG_ERR, "kvm_open: %m"); - return 0; - } - - /* Fetch namelist */ - if (kvm_nlist(kd, nl) != 0) { - syslog(LOG_ERR, "kvm_nlist failed"); - return 0; - } - - ac = &arpcom; - ifp = &arpcom.ac_if; -#ifdef SUNOS4 - ifa = &ifaddr.ifa; - in = &ifaddr.in; -#endif - - if (kvm_read(kd, nl[N_IFNET].n_value, (char *)&addr, sizeof(addr)) - != sizeof(addr)) { - syslog(LOG_ERR, "error reading ifnet addr"); - return 0; - } - for ( ; addr; addr = (u_long)ifp->if_next) { - if (kvm_read(kd, addr, (char *)ac, sizeof(*ac)) != sizeof(*ac)) { - syslog(LOG_ERR, "error reading ifnet"); - return 0; - } - - /* Only look at configured, broadcast interfaces */ - if (!ALLSET(ifp->if_flags, IFF_UP | IFF_BROADCAST)) - continue; -#ifdef SUNOS4 - /* This probably can't happen... */ - if (ifp->if_addrlist == 0) - continue; -#endif - - /* Get interface ip address */ -#ifdef SUNOS4 - if (kvm_read(kd, (u_long)ifp->if_addrlist, (char *)&ifaddr, - sizeof(ifaddr)) != sizeof(ifaddr)) { - syslog(LOG_ERR, "error reading ifaddr"); - return 0; - } - inp = &SATOSIN(&ifa->ifa_addr)->sin_addr; -#else - inp = &SATOSIN(&ifp->if_addr)->sin_addr; -#endif - - /* Check if this interface on the right subnet */ -#ifdef SUNOS4 - mask = in->ia_subnetmask; -#else - mask = ifp->if_subnetmask; -#endif - if ((ipaddr & mask) != (inp->s_addr & mask)) - continue; - - /* Copy out the local ethernet address */ - hwaddr->sa_family = AF_UNSPEC; - BCOPY((caddr_t) &arpcom.ac_enaddr, hwaddr->sa_data, - sizeof(arpcom.ac_enaddr)); - return 1; /* success! */ - } - - /* couldn't find one */ - return 0; -} - -#define WTMPFILE "/usr/adm/wtmp" - -int -logwtmp(line, name, host) - char *line, *name, *host; -{ - int fd; - struct stat buf; - struct utmp ut; - - if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0) - return; - if (!fstat(fd, &buf)) { - (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); - (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); - (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); - (void)time(&ut.ut_time); - if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp)) - (void)ftruncate(fd, buf.st_size); - } - close(fd); -} diff --git a/usr.sbin/pppd/sys-ultrix.c b/usr.sbin/pppd/sys-ultrix.c deleted file mode 100644 index ca8f2a4..0000000 --- a/usr.sbin/pppd/sys-ultrix.c +++ /dev/null @@ -1,663 +0,0 @@ -/* - * sys-ultrix.c - System-dependent procedures for setting up - * PPP interfaces on Ultrix systems. - * - * Copyright (c) 1989 Carnegie Mellon University. - * All rights reserved. - * - * Redistribution and use in source and binary forms 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 Carnegie Mellon University. The name of the - * University 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -static char rcsid[] = "$Id: sys-ultrix.c,v 1.4 1994/05/25 06:30:49 paulus Exp $"; -#endif - -/* - * TODO: - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include - -#include "pppd.h" -#include "ppp.h" - -static int initdisc = -1; /* Initial TTY discipline */ -extern int kdebugflag; - -/* - * establish_ppp - Turn the serial port into a ppp interface. - */ -void -establish_ppp() -{ - int pppdisc = PPPDISC; - int x; - - if (ioctl(fd, TIOCGETD, &initdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCGETD): %m"); - die(1); - } - if (ioctl(fd, TIOCSETD, &pppdisc) < 0) { - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - die(1); - } - - /* - * Find out which interface we were given. - */ - if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m"); - die(1); - } - - /* - * Enable debug in the driver if requested. - */ - if (kdebugflag) { - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_WARNING, "ioctl (PPPIOCGFLAGS): %m"); - } else { - x |= (kdebugflag & 0xFF) * SC_DEBUG; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) - syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m"); - } - } -} - - -/* - * disestablish_ppp - Restore the serial port to normal operation. - * This shouldn't call die() because it's called from die(). - */ -void -disestablish_ppp() -{ - int x; - char *s; - - if (initdisc >= 0) { - /* - * Check whether the link seems not to be 8-bit clean. - */ - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) == 0) { - s = NULL; - switch (~x & (SC_RCV_B7_0|SC_RCV_B7_1|SC_RCV_EVNP|SC_RCV_ODDP)) { - case SC_RCV_B7_0: - s = "bit 7 set to 1"; - break; - case SC_RCV_B7_1: - s = "bit 7 set to 0"; - break; - case SC_RCV_EVNP: - s = "odd parity"; - break; - case SC_RCV_ODDP: - s = "even parity"; - break; - } - if (s != NULL) { - syslog(LOG_WARNING, "Serial link is not 8-bit clean:"); - syslog(LOG_WARNING, "All received characters had %s", s); - } - } - if (ioctl(fd, TIOCSETD, &initdisc) < 0) - syslog(LOG_ERR, "ioctl(TIOCSETD): %m"); - } -} - - -/* - * output - Output PPP packet. - */ -void -output(unit, p, len) - int unit; - u_char *p; - int len; -{ - if (unit != 0) - MAINDEBUG((LOG_WARNING, "output: unit != 0!")); - if (debug) - log_packet(p, len, "sent "); - - if (write(fd, p, len) < 0) { - syslog(LOG_ERR, "write: %m"); - die(1); - } -} - - -/* - * read_packet - get a PPP packet from the serial device. - */ -int -read_packet(buf) - u_char *buf; -{ - int len; - - if ((len = read(fd, buf, MTU + DLLHEADERLEN)) < 0) { - if (errno == EWOULDBLOCK) { - MAINDEBUG((LOG_DEBUG, "read(fd): EWOULDBLOCK")); - return -1; - } - syslog(LOG_ERR, "read(fd): %m"); - die(1); - } - return len; -} - - -/* - * ppp_send_config - configure the transmit characteristics of - * the ppp interface. - */ -void -ppp_send_config(unit, mtu, asyncmap, pcomp, accomp) - int unit, mtu; - u_long asyncmap; - int pcomp, accomp; -{ - u_int x; - struct ifreq ifr; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - ifr.ifr_mtu = mtu; - if (ioctl(s, SIOCSIFMTU, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFMTU): %m"); - quit(); - } - - if (ioctl(fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m"); - quit(); - } - - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - quit(); - } - x = pcomp? x | SC_COMP_PROT: x &~ SC_COMP_PROT; - x = accomp? x | SC_COMP_AC: x &~ SC_COMP_AC; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } -} - - -/* - * ppp_set_xaccm - set the extended transmit ACCM for the interface. - */ -void -ppp_set_xaccm(unit, accm) - int unit; - ext_accm accm; -{ - if (ioctl(fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) - syslog(LOG_WARNING, "ioctl(set extended ACCM): %m"); -} - - -/* - * ppp_recv_config - configure the receive-side characteristics of - * the ppp interface. - */ -void -ppp_recv_config(unit, mru, asyncmap, pcomp, accomp) - int unit, mru; - u_long asyncmap; - int pcomp, accomp; -{ - int x; - - if (ioctl(fd, PPPIOCSMRU, (caddr_t) &mru) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m"); - quit(); - } - if (ioctl(fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m"); - quit(); - } - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - quit(); - } - x = !accomp? x | SC_REJ_COMP_AC: x &~ SC_REJ_COMP_AC; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - quit(); - } -} - -/* - * sifvjcomp - config tcp header compression - */ -int -sifvjcomp(u, vjcomp, cidcomp, maxcid) - int u, vjcomp, cidcomp, maxcid; -{ - u_int x; - - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - return 0; - } - x = vjcomp ? x | SC_COMP_TCP: x &~ SC_COMP_TCP; - x = cidcomp? x & ~SC_NO_TCP_CCID: x | SC_NO_TCP_CCID; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - if (ioctl(fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifup - Config the interface up and enable IP packets to pass. - */ -int -sifup(u) -{ - struct ifreq ifr; - u_int x; - - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - return 0; - } - ifr.ifr_flags |= IFF_UP; - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - return 0; - } - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - return 0; - } - x |= SC_ENABLE_IP; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - return 0; - } - return 1; -} - -/* - * sifdown - Config the interface down and disable IP. - */ -int -sifdown(u) -{ - struct ifreq ifr; - u_int x; - int rv; - - rv = 1; - if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m"); - rv = 0; - } else { - x &= ~SC_ENABLE_IP; - if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) { - syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m"); - rv = 0; - } - } - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m"); - rv = 0; - } else { - ifr.ifr_flags &= ~IFF_UP; - if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m"); - rv = 0; - } - } - return rv; -} - -/* - * SET_SA_FAMILY - set the sa_family field of a struct sockaddr, - * if it exists. - */ -#define SET_SA_FAMILY(addr, family) \ - BZERO((char *) &(addr), sizeof(addr)); \ - addr.sa_family = (family); - -/* - * sifaddr - Config the interface IP addresses and netmask. - */ -int -sifaddr(u, o, h, m) -{ - int ret; - struct ifreq ifr; - - ret = 1; - strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name)); - SET_SA_FAMILY(ifr.ifr_addr, AF_INET); - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = o; - if (ioctl(s, SIOCSIFADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFADDR): %m"); - ret = 0; - } - ((struct sockaddr_in *) &ifr.ifr_dstaddr)->sin_addr.s_addr = h; - if (ioctl(s, SIOCSIFDSTADDR, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFDSTADDR): %m"); - ret = 0; - } - if (m != 0) { - ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr.s_addr = m; - syslog(LOG_INFO, "Setting interface mask to %s\n", ip_ntoa(m)); - if (ioctl(s, SIOCSIFNETMASK, (caddr_t) &ifr) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSIFNETMASK): %m"); - ret = 0; - } - } - return ret; -} - -/* - * cifaddr - Clear the interface IP addresses, and delete routes - * through the interface if possible. - */ -int -cifaddr(u, o, h) -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - ((struct sockaddr_in *) &rt.rt_dst)->sin_addr.s_addr = h; - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = o; - rt.rt_flags = RTF_HOST; - if (ioctl(s, SIOCDELRT, (caddr_t) &rt) < 0) { - syslog(LOG_ERR, "ioctl(SIOCDELRT): %m"); - return 0; - } - return 1; -} - -/* - * sifdefaultroute - assign a default route through the address given. - */ -int -sifdefaultroute(u, g) -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(s, SIOCADDRT, &rt) < 0) { - syslog(LOG_ERR, "default route ioctl(SIOCADDRT): %m"); - return 0; - } - return 1; -} - -/* - * cifdefaultroute - delete a default route through the address given. - */ -int -cifdefaultroute(u, g) -{ - struct rtentry rt; - - SET_SA_FAMILY(rt.rt_dst, AF_INET); - SET_SA_FAMILY(rt.rt_gateway, AF_INET); - ((struct sockaddr_in *) &rt.rt_gateway)->sin_addr.s_addr = g; - rt.rt_flags = RTF_GATEWAY; - if (ioctl(s, SIOCDELRT, &rt) < 0) - syslog(LOG_WARNING, "default route ioctl(SIOCDELRT): %m"); -} - -/* - * sifproxyarp - Make a proxy ARP entry for the peer. - */ -int -sifproxyarp(unit, hisaddr) - int unit; - u_long hisaddr; -{ - struct arpreq arpreq; - - BZERO(&arpreq, sizeof(arpreq)); - - /* - * Get the hardware address of an interface on the same subnet - * as our local address. - */ - if (!get_ether_addr(hisaddr, &arpreq.arp_ha)) { - syslog(LOG_ERR, "Cannot determine ethernet address for proxy ARP"); - return 0; - } - - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; - arpreq.arp_flags = ATF_PERM | ATF_PUBL; - if (ioctl(s, SIOCSARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_ERR, "ioctl(SIOCSARP): %m"); - return 0; - } - - return 1; -} - -/* - * cifproxyarp - Delete the proxy ARP entry for the peer. - */ -int -cifproxyarp(unit, hisaddr) - int unit; - u_long hisaddr; -{ - struct arpreq arpreq; - - BZERO(&arpreq, sizeof(arpreq)); - SET_SA_FAMILY(arpreq.arp_pa, AF_INET); - ((struct sockaddr_in *) &arpreq.arp_pa)->sin_addr.s_addr = hisaddr; - if (ioctl(s, SIOCDARP, (caddr_t)&arpreq) < 0) { - syslog(LOG_WARNING, "ioctl(SIOCDARP): %m"); - return 0; - } - return 1; -} - -/* - * get_ether_addr - get the hardware address of an interface on the - * the same subnet as ipaddr. - */ -#define MAX_IFS 32 - -int -get_ether_addr(ipaddr, hwaddr) - u_long ipaddr; - struct sockaddr *hwaddr; -{ - struct ifreq *ifr, *ifend, *ifp; - u_long ina, mask; - struct sockaddr_dl *dla; - struct ifreq ifreq; - struct ifconf ifc; - struct ifreq ifs[MAX_IFS]; - - ifc.ifc_len = sizeof(ifs); - ifc.ifc_req = ifs; - if (ioctl(s, SIOCGIFCONF, &ifc) < 0) { - syslog(LOG_ERR, "ioctl(SIOCGIFCONF): %m"); - return 0; - } - - /* - * Scan through looking for an interface with an Internet - * address on the same subnet as `ipaddr'. - */ - ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len); - for (ifr = ifc.ifc_req; ifr < ifend; ) { - if (ifr->ifr_addr.sa_family == AF_INET) { - ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr; - strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name)); - /* - * Check that the interface is up, and not point-to-point - * or loopback. - */ - if (ioctl(s, SIOCGIFFLAGS, &ifreq) < 0) - continue; - if ((ifreq.ifr_flags & - (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP)) - != (IFF_UP|IFF_BROADCAST)) - continue; - /* - * Get its netmask and check that it's on the right subnet. - */ - if (ioctl(s, SIOCGIFNETMASK, &ifreq) < 0) - continue; - mask = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr; - if ((ipaddr & mask) != (ina & mask)) - continue; - - break; - } - ifr = (struct ifreq *) ((char *)&ifr->ifr_addr + sizeof(struct sockaddr) -); - } - - if (ifr >= ifend) - return 0; - syslog(LOG_DEBUG, "found interface %s for proxy arp", ifr->ifr_name); - - /* - * Now scan through again looking for a link-level address - * for this interface. - */ - ifp = ifr; - for (ifr = ifc.ifc_req; ifr < ifend; ) { - if (strcmp(ifp->ifr_name, ifr->ifr_name) == 0 - && ifr->ifr_addr.sa_family == AF_DLI) { -/* && ifr->ifr_addr.sa_family == AF_LINK) { Per! Kolla !!! ROHACK */ - /* - * Found the link-level address - copy it out - */ - dla = (struct sockaddr_dl *)&ifr->ifr_addr; - hwaddr->sa_family = AF_UNSPEC; - BCOPY(dla, hwaddr->sa_data, sizeof(hwaddr->sa_data)); - return 1; - } - ifr = (struct ifreq *) ((char *)&ifr->ifr_addr + sizeof(struct sockaddr) -); - } - - return 0; -} - - -/* - * ppp_available - check whether the system has any ppp interfaces - * (in fact we check whether we can do an ioctl on ppp0). - */ - -int -ppp_available() -{ - int s, ok; - struct ifreq ifr; - - if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) - return 1; /* can't tell - maybe we're not root */ - - strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name)); - ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0; - close(s); - - return ok; -} - - -/* - Seems like strdup() is not part of string package in Ultrix. - If I understood the man-page on the sun this should work. - - Robert Olsson -*/ - -char *strdup( in ) char *in; -{ - char* dup; - if(! (dup = (char *) malloc( strlen( in ) +1 ))) return NULL; - (void) strcpy( dup, in ); - return dup; -} - -/* - * This logwtmp() implementation is subject to the following copyright: - * - * Copyright (c) 1988 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms 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 University of California, Berkeley. The name of the - * University 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 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#define WTMPFILE "/usr/adm/wtmp" - -int -logwtmp(line, name, host) - char *line, *name, *host; -{ - int fd; - struct stat buf; - struct utmp ut; - - if ((fd = open(WTMPFILE, O_WRONLY|O_APPEND, 0)) < 0) - return; - if (!fstat(fd, &buf)) { - (void)strncpy(ut.ut_line, line, sizeof(ut.ut_line)); - (void)strncpy(ut.ut_name, name, sizeof(ut.ut_name)); - (void)strncpy(ut.ut_host, host, sizeof(ut.ut_host)); - (void)time(&ut.ut_time); - if (write(fd, (char *)&ut, sizeof(struct utmp)) != sizeof(struct utmp)) - (void)ftruncate(fd, buf.st_size); - } - close(fd); -} -- cgit v1.1