diff options
Diffstat (limited to 'contrib/ipfilter/ipft_sn.c')
| -rw-r--r-- | contrib/ipfilter/ipft_sn.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/contrib/ipfilter/ipft_sn.c b/contrib/ipfilter/ipft_sn.c deleted file mode 100644 index 859bf5e..0000000 --- a/contrib/ipfilter/ipft_sn.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * Copyright (C) 1993-2001 by Darren Reed. - * - * See the IPFILTER.LICENCE file for details on licencing. - */ - -/* - * Written to comply with the recent RFC 1761 from Sun. - */ -#if defined(__sgi) && (IRIX > 602) -# include <sys/ptimers.h> -#endif -#include <stdio.h> -#include <string.h> -#if !defined(__SVR4) && !defined(__GNUC__) -#include <strings.h> -#endif -#include <sys/types.h> -#include <stdlib.h> -#include <unistd.h> -#include <stddef.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <sys/param.h> -#include <sys/time.h> -#include <netinet/in.h> -#include <netinet/in_systm.h> -#ifndef linux -#include <netinet/ip_var.h> -#endif -#include <netinet/ip.h> -#include <netinet/tcp.h> -#include <net/if.h> -#include "ip_compat.h" -#include <netinet/tcpip.h> -#include "ipf.h" -#include "snoop.h" -#include "ipt.h" - -#if !defined(lint) -static const char rcsid[] = "@(#)$Id: ipft_sn.c,v 2.2.2.4 2002/12/06 11:40:26 darrenr Exp $"; -#endif - -struct llc { - int lc_sz; /* LLC header length */ - int lc_to; /* LLC Type offset */ - int lc_tl; /* LLC Type length */ -}; - -/* - * While many of these maybe the same, some do have different header formats - * which make this useful. - */ -static struct llc llcs[SDL_MAX+1] = { - { 0, 0, 0 }, /* SDL_8023 */ - { 0, 0, 0 }, /* SDL_8024 */ - { 0, 0, 0 }, /* SDL_8025 */ - { 0, 0, 0 }, /* SDL_8026 */ - { 14, 12, 2 }, /* SDL_ETHER */ - { 0, 0, 0 }, /* SDL_HDLC */ - { 0, 0, 0 }, /* SDL_CHSYNC */ - { 0, 0, 0 }, /* SDL_IBMCC */ - { 0, 0, 0 }, /* SDL_FDDI */ - { 0, 0, 0 }, /* SDL_OTHER */ -}; - -static int snoop_open __P((char *)); -static int snoop_close __P((void)); -static int snoop_readip __P((char *, int, char **, int *)); - -static int sfd = -1, s_type = -1; -static int snoop_read_rec __P((struct snooppkt *)); - -struct ipread snoop = { snoop_open, snoop_close, snoop_readip }; - - -static int snoop_open(fname) -char *fname; -{ - struct snoophdr sh; - int fd; - int s_v; - - if (sfd != -1) - return sfd; - - if (!strcmp(fname, "-")) - fd = 0; - else if ((fd = open(fname, O_RDONLY)) == -1) - return -1; - - if (read(fd, (char *)&sh, sizeof(sh)) != sizeof(sh)) - return -2; - - s_v = (int)ntohl(sh.s_v); - s_type = (int)ntohl(sh.s_type); - - if (s_v != SNOOP_VERSION || - s_type < 0 || s_type > SDL_MAX) { - (void) close(fd); - return -2; - } - - sfd = fd; - printf("opened snoop file %s:\n", fname); - printf("\tid: %8.8s version: %d type: %d\n", sh.s_id, s_v, s_type); - - return fd; -} - - -static int snoop_close() -{ - return close(sfd); -} - - -/* - * read in the header (and validate) which should be the first record - * in a snoop file. - */ -static int snoop_read_rec(rec) -struct snooppkt *rec; -{ - int n, plen, ilen; - - if (read(sfd, (char *)rec, sizeof(*rec)) != sizeof(*rec)) - return -2; - - ilen = (int)ntohl(rec->sp_ilen); - plen = (int)ntohl(rec->sp_plen); - if (ilen > plen || plen < sizeof(*rec)) - return -2; - - plen -= sizeof(*rec); - n = MIN(plen, ilen); - if (!n || n < 0) - return -3; - - return plen; -} - - -#ifdef notyet -/* - * read an entire snoop packet record. only the data part is copied into - * the available buffer, with the number of bytes copied returned. - */ -static int snoop_read(buf, cnt) -char *buf; -int cnt; -{ - struct snooppkt rec; - static char *bufp = NULL; - int i, n; - - if ((i = snoop_read_rec(&rec)) <= 0) - return i; - - if (!bufp) - bufp = malloc(i); - else - bufp = realloc(bufp, i); - - if (read(sfd, bufp, i) != i) - return -2; - - n = MIN(i, cnt); - bcopy(bufp, buf, n); - return n; -} -#endif - - -/* - * return only an IP packet read into buf - */ -static int snoop_readip(buf, cnt, ifn, dir) -char *buf, **ifn; -int cnt, *dir; -{ - static char *bufp = NULL; - struct snooppkt rec; - struct llc *l; - char ty[4], *s; - int i, n; - - do { - if ((i = snoop_read_rec(&rec)) <= 0) - return i; - - if (!bufp) - bufp = malloc(i); - else - bufp = realloc(bufp, i); - s = bufp; - - if (read(sfd, s, i) != i) - return -2; - - l = &llcs[s_type]; - i -= l->lc_to; - s += l->lc_to; - /* - * XXX - bogus assumption here on the part of the time field - * that it won't be greater than 4 bytes and the 1st two will - * have the values 8 and 0 for IP. Should be a table of - * these too somewhere. Really only works for SDL_ETHER. - */ - bcopy(s, ty, l->lc_tl); - } while (ty[0] != 0x8 && ty[1] != 0); - - i -= l->lc_tl; - s += l->lc_tl; - n = MIN(i, cnt); - bcopy(s, buf, n); - - return n; -} |
