1242 lines
29 KiB
C
1242 lines
29 KiB
C
/*
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* Copyright (C) 1993-2000 by Darren Reed.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and due credit is given
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* to the original author and the contributors.
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*/
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#ifdef __FreeBSD__
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# include <osreldate.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#if !defined(__SVR4) && !defined(__svr4__)
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# include <strings.h>
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#endif
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/param.h>
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#include <sys/file.h>
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#if defined(STATETOP) && defined(sun) && !defined(__svr4__) && !defined(__SVR4)
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#include <sys/select.h>
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#endif
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stddef.h>
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#include <nlist.h>
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#ifdef STATETOP
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#include <ctype.h>
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#include <ncurses.h>
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#endif
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <net/if.h>
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#if __FreeBSD_version >= 300000
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# include <net/if_var.h>
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#endif
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#include <netdb.h>
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#include <arpa/nameser.h>
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#include <resolv.h>
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#include <netinet/tcp.h>
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#if defined(STATETOP) && !defined(linux)
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# include <netinet/ip_var.h>
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# include <netinet/tcp_fsm.h>
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#endif
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#include "netinet/ip_compat.h"
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#include "netinet/ip_fil.h"
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#include "ipf.h"
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#include "netinet/ip_proxy.h"
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#include "netinet/ip_nat.h"
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#include "netinet/ip_frag.h"
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#include "netinet/ip_state.h"
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#include "netinet/ip_auth.h"
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#ifdef STATETOP
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#include "netinet/ipl.h"
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#endif
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#include "kmem.h"
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#if defined(__NetBSD__) || (__OpenBSD__)
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# include <paths.h>
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#endif
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#if !defined(lint)
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static const char sccsid[] = "@(#)fils.c 1.21 4/20/96 (C) 1993-2000 Darren Reed";
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static const char rcsid[] = "@(#)$Id: fils.c,v 2.21.2.5 2000/07/20 14:13:30 darrenr Exp $";
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#endif
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extern char *optarg;
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#define PRINTF (void)printf
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#define FPRINTF (void)fprintf
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#define F_IN 0
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#define F_OUT 1
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#define F_AC 2
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static char *filters[4] = { "ipfilter(in)", "ipfilter(out)",
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"ipacct(in)", "ipacct(out)" };
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int opts = 0;
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#ifdef USE_INET6
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int use_inet6 = 0;
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#endif
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#ifdef STATETOP
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#define STSTRSIZE 80
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#define STGROWSIZE 16
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#define STSORT_PR 0
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#define STSORT_PKTS 1
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#define STSORT_BYTES 2
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#define STSORT_TTL 3
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#define STSORT_MAX STSORT_TTL
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#define STSORT_DEFAULT STSORT_BYTES
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typedef struct statetop {
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union i6addr st_src;
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union i6addr st_dst;
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u_short st_sport;
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u_short st_dport;
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u_char st_p;
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u_char st_state[2];
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U_QUAD_T st_pkts;
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U_QUAD_T st_bytes;
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u_long st_age;
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} statetop_t;
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#endif
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extern int main __P((int, char *[]));
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static void showstats __P((int, friostat_t *));
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static void showfrstates __P((int, ipfrstat_t *));
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static void showlist __P((friostat_t *));
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static void showipstates __P((int, ips_stat_t *));
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static void showauthstates __P((int, fr_authstat_t *));
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static void showgroups __P((friostat_t *));
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static void Usage __P((char *));
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static void printlist __P((frentry_t *));
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static char *get_ifname __P((void *));
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static char *hostname __P((int, void *));
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static void parse_ipportstr __P((const char *, struct in_addr *, int *));
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#ifdef STATETOP
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static void topipstates __P((int, struct in_addr, struct in_addr, int, int, int, int, int));
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static char *ttl_to_string __P((long));
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static int sort_p __P((const void *, const void *));
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static int sort_pkts __P((const void *, const void *));
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static int sort_bytes __P((const void *, const void *));
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static int sort_ttl __P((const void *, const void *));
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#endif
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static char *hostname(v, ip)
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int v;
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void *ip;
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{
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#ifdef USE_INET6
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static char hostbuf[MAXHOSTNAMELEN+1];
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#endif
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struct in_addr ipa;
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if (v == 4) {
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ipa.s_addr = *(u_32_t *)ip;
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return inet_ntoa(ipa);
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}
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#ifdef USE_INET6
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(void) inet_ntop(AF_INET6, ip, hostbuf, sizeof(hostbuf) - 1);
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hostbuf[MAXHOSTNAMELEN] = '\0';
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return hostbuf;
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#else
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return "IPv6";
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#endif
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}
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static void Usage(name)
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char *name;
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{
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#ifdef USE_INET6
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fprintf(stderr, "Usage: %s [-6aAfhIinosv] [-d <device>]\n", name);
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#else
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fprintf(stderr, "Usage: %s [-aAfhIinosv] [-d <device>]\n", name);
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#endif
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fprintf(stderr, " %s -t [-S source address] [-D destination address] [-P protocol] [-T refreshtime] [-C] [-d <device>]\n", name);
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exit(1);
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}
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int main(argc,argv)
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int argc;
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char *argv[];
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{
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fr_authstat_t frauthst;
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fr_authstat_t *frauthstp = &frauthst;
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friostat_t fio;
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friostat_t *fiop=&fio;
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ips_stat_t ipsst;
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ips_stat_t *ipsstp = &ipsst;
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ipfrstat_t ifrst;
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ipfrstat_t *ifrstp = &ifrst;
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char *name = NULL, *device = IPL_NAME;
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int c, fd;
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struct protoent *proto;
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int protocol = -1; /* -1 = wild card for any protocol */
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int refreshtime = 1; /* default update time */
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int sport = -1; /* -1 = wild card for any source port */
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int dport = -1; /* -1 = wild card for any dest port */
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int topclosed = 0; /* do not show closed tcp sessions */
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struct in_addr saddr, daddr;
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saddr.s_addr = INADDR_ANY; /* default any source addr */
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daddr.s_addr = INADDR_ANY; /* default any dest addr */
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if (openkmem() == -1)
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exit(-1);
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(void)setuid(getuid());
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(void)setgid(getgid());
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while ((c = getopt(argc, argv, "6aACfghIilnostvd:D:P:S:T:")) != -1)
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{
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switch (c)
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{
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#ifdef USE_INET6
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case '6' :
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use_inet6 = 1;
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break;
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#endif
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case 'a' :
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opts |= OPT_ACCNT|OPT_SHOWLIST;
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break;
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case 'A' :
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device = IPAUTH_NAME;
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opts |= OPT_AUTHSTATS;
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break;
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case 'C' :
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topclosed = 1;
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break;
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case 'd' :
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device = optarg;
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break;
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case 'D' :
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parse_ipportstr(optarg, &daddr, &dport);
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break;
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case 'f' :
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opts |= OPT_FRSTATES;
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break;
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case 'g' :
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opts |= OPT_GROUPS;
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break;
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case 'h' :
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opts |= OPT_HITS;
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break;
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case 'i' :
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opts |= OPT_INQUE|OPT_SHOWLIST;
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break;
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case 'I' :
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opts |= OPT_INACTIVE;
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break;
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case 'l' :
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opts |= OPT_SHOWLIST;
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break;
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case 'n' :
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opts |= OPT_SHOWLINENO;
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break;
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case 'o' :
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opts |= OPT_OUTQUE|OPT_SHOWLIST;
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break;
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case 'P' :
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if ((proto = getprotobyname(optarg)) != NULL) {
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protocol = proto->p_proto;
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} else if (!sscanf(optarg, "%ud", &protocol) ||
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(protocol < 0)) {
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fprintf(stderr, "%s : Invalid protocol: %s\n",
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argv[0], optarg);
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exit(-2);
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}
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break;
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case 's' :
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opts |= OPT_IPSTATES;
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break;
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case 'S' :
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parse_ipportstr(optarg, &saddr, &sport);
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break;
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case 't' :
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#ifdef STATETOP
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opts |= OPT_STATETOP;
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break;
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#else
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fprintf(stderr,
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"%s : state top facility not compiled in\n",
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argv[0]);
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exit(-2);
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#endif
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case 'T' :
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if (!sscanf(optarg, "%d", &refreshtime) ||
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(refreshtime <= 0)) {
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fprintf(stderr,
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"%s : Invalid refreshtime < 1 : %s\n",
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argv[0], optarg);
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exit(-2);
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}
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break;
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case 'v' :
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opts |= OPT_VERBOSE;
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break;
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default :
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Usage(argv[0]);
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break;
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}
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}
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if ((fd = open(device, O_RDONLY)) < 0) {
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perror("open");
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exit(-1);
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}
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bzero((char *)&fio, sizeof(fio));
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bzero((char *)&ipsst, sizeof(ipsst));
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bzero((char *)&ifrst, sizeof(ifrst));
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if (!(opts & OPT_AUTHSTATS) && ioctl(fd, SIOCGETFS, &fiop) == -1) {
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perror("ioctl(ipf:SIOCGETFS)");
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exit(-1);
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}
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if ((opts & OPT_IPSTATES)) {
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int sfd = open(IPL_STATE, O_RDONLY);
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if (sfd == -1) {
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perror("open");
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exit(-1);
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}
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if ((ioctl(sfd, SIOCGETFS, &ipsstp) == -1)) {
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perror("ioctl(state:SIOCGETFS)");
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exit(-1);
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}
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close(sfd);
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}
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if ((opts & OPT_FRSTATES) && (ioctl(fd, SIOCGFRST, &ifrstp) == -1)) {
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perror("ioctl(SIOCGFRST)");
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exit(-1);
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}
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if (opts & OPT_VERBOSE)
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PRINTF("opts %#x name %s\n", opts, name ? name : "<>");
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if ((opts & OPT_AUTHSTATS) &&
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(ioctl(fd, SIOCATHST, &frauthstp) == -1)) {
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perror("ioctl(SIOCATHST)");
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exit(-1);
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}
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if (opts & OPT_IPSTATES) {
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showipstates(fd, ipsstp);
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} else if (opts & OPT_SHOWLIST) {
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showlist(&fio);
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if ((opts & OPT_OUTQUE) && (opts & OPT_INQUE)){
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opts &= ~OPT_OUTQUE;
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showlist(&fio);
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}
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} else {
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if (opts & OPT_FRSTATES)
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showfrstates(fd, ifrstp);
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#ifdef STATETOP
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else if (opts & OPT_STATETOP)
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topipstates(fd, saddr, daddr, sport, dport,
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protocol, refreshtime, topclosed);
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#endif
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else if (opts & OPT_AUTHSTATS)
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showauthstates(fd, frauthstp);
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else if (opts & OPT_GROUPS)
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showgroups(&fio);
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else
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showstats(fd, &fio);
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}
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return 0;
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}
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/*
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* read the kernel stats for packets blocked and passed
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*/
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static void showstats(fd, fp)
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int fd;
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struct friostat *fp;
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{
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u_32_t frf = 0;
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if (ioctl(fd, SIOCGETFF, &frf) == -1)
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perror("ioctl(SIOCGETFF)");
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#if SOLARIS
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PRINTF("dropped packets:\tin %lu\tout %lu\n",
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fp->f_st[0].fr_drop, fp->f_st[1].fr_drop);
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PRINTF("non-data packets:\tin %lu\tout %lu\n",
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fp->f_st[0].fr_notdata, fp->f_st[1].fr_notdata);
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PRINTF("no-data packets:\tin %lu\tout %lu\n",
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fp->f_st[0].fr_nodata, fp->f_st[1].fr_nodata);
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PRINTF("non-ip packets:\t\tin %lu\tout %lu\n",
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fp->f_st[0].fr_notip, fp->f_st[1].fr_notip);
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PRINTF(" bad packets:\t\tin %lu\tout %lu\n",
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fp->f_st[0].fr_bad, fp->f_st[1].fr_bad);
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PRINTF("copied messages:\tin %lu\tout %lu\n",
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fp->f_st[0].fr_copy, fp->f_st[1].fr_copy);
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#endif
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#ifdef USE_INET6
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PRINTF(" IPv6 packets:\t\tin %lu out %lu\n",
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fp->f_st[0].fr_ipv6[0], fp->f_st[0].fr_ipv6[1]);
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#endif
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PRINTF(" input packets:\t\tblocked %lu passed %lu nomatch %lu",
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fp->f_st[0].fr_block, fp->f_st[0].fr_pass,
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fp->f_st[0].fr_nom);
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PRINTF(" counted %lu short %lu\n",
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fp->f_st[0].fr_acct, fp->f_st[0].fr_short);
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PRINTF("output packets:\t\tblocked %lu passed %lu nomatch %lu",
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fp->f_st[1].fr_block, fp->f_st[1].fr_pass,
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fp->f_st[1].fr_nom);
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PRINTF(" counted %lu short %lu\n",
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fp->f_st[1].fr_acct, fp->f_st[1].fr_short);
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PRINTF(" input packets logged:\tblocked %lu passed %lu\n",
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fp->f_st[0].fr_bpkl, fp->f_st[0].fr_ppkl);
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PRINTF("output packets logged:\tblocked %lu passed %lu\n",
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fp->f_st[1].fr_bpkl, fp->f_st[1].fr_ppkl);
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PRINTF(" packets logged:\tinput %lu output %lu\n",
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fp->f_st[0].fr_pkl, fp->f_st[1].fr_pkl);
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PRINTF(" log failures:\t\tinput %lu output %lu\n",
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fp->f_st[0].fr_skip, fp->f_st[1].fr_skip);
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PRINTF("fragment state(in):\tkept %lu\tlost %lu\n",
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fp->f_st[0].fr_nfr, fp->f_st[0].fr_bnfr);
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PRINTF("fragment state(out):\tkept %lu\tlost %lu\n",
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fp->f_st[1].fr_nfr, fp->f_st[1].fr_bnfr);
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PRINTF("packet state(in):\tkept %lu\tlost %lu\n",
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fp->f_st[0].fr_ads, fp->f_st[0].fr_bads);
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PRINTF("packet state(out):\tkept %lu\tlost %lu\n",
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fp->f_st[1].fr_ads, fp->f_st[1].fr_bads);
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PRINTF("ICMP replies:\t%lu\tTCP RSTs sent:\t%lu\n",
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fp->f_st[0].fr_ret, fp->f_st[1].fr_ret);
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PRINTF("Invalid source(in):\t%lu\n", fp->f_st[0].fr_badsrc);
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PRINTF("Result cache hits(in):\t%lu\t(out):\t%lu\n",
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fp->f_st[0].fr_chit, fp->f_st[1].fr_chit);
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PRINTF("IN Pullups succeeded:\t%lu\tfailed:\t%lu\n",
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fp->f_st[0].fr_pull[0], fp->f_st[0].fr_pull[1]);
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PRINTF("OUT Pullups succeeded:\t%lu\tfailed:\t%lu\n",
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fp->f_st[1].fr_pull[0], fp->f_st[1].fr_pull[1]);
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PRINTF("Fastroute successes:\t%lu\tfailures:\t%lu\n",
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fp->f_froute[0], fp->f_froute[1]);
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PRINTF("TCP cksum fails(in):\t%lu\t(out):\t%lu\n",
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fp->f_st[0].fr_tcpbad, fp->f_st[1].fr_tcpbad);
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PRINTF("Packet log flags set: (%#x)\n", frf);
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if (frf & FF_LOGPASS)
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PRINTF("\tpackets passed through filter\n");
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if (frf & FF_LOGBLOCK)
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PRINTF("\tpackets blocked by filter\n");
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if (frf & FF_LOGNOMATCH)
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PRINTF("\tpackets not matched by filter\n");
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if (!frf)
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PRINTF("\tnone\n");
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}
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static void printlist(fp)
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frentry_t *fp;
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{
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struct frentry fb;
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int n;
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for (n = 1; fp; n++) {
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if (kmemcpy((char *)&fb, (u_long)fp, sizeof(fb)) == -1) {
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perror("kmemcpy");
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return;
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}
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fp = &fb;
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if (opts & OPT_OUTQUE)
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fp->fr_flags |= FR_OUTQUE;
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if (opts & (OPT_HITS|OPT_VERBOSE))
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#ifdef USE_QUAD_T
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PRINTF("%qu ", (unsigned long long) fp->fr_hits);
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#else
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PRINTF("%lu ", fp->fr_hits);
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#endif
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if (opts & (OPT_ACCNT|OPT_VERBOSE))
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#ifdef USE_QUAD_T
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PRINTF("%qu ", (unsigned long long) fp->fr_bytes);
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#else
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PRINTF("%lu ", fp->fr_bytes);
|
|
#endif
|
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if (opts & OPT_SHOWLINENO)
|
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PRINTF("@%d ", n);
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printfr(fp);
|
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if (opts & OPT_VERBOSE)
|
|
binprint(fp);
|
|
if (fp->fr_grp)
|
|
printlist(fp->fr_grp);
|
|
fp = fp->fr_next;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* print out filter rule list
|
|
*/
|
|
static void showlist(fiop)
|
|
struct friostat *fiop;
|
|
{
|
|
struct frentry *fp = NULL;
|
|
int i, set;
|
|
|
|
set = fiop->f_active;
|
|
if (opts & OPT_INACTIVE)
|
|
set = 1 - set;
|
|
if (opts & OPT_ACCNT) {
|
|
i = F_AC;
|
|
if (opts & OPT_OUTQUE) {
|
|
fp = (struct frentry *)fiop->f_acctout[set];
|
|
i++;
|
|
} else if (opts & OPT_INQUE)
|
|
fp = (struct frentry *)fiop->f_acctin[set];
|
|
else {
|
|
FPRINTF(stderr, "No -i or -o given with -a\n");
|
|
return;
|
|
}
|
|
} else {
|
|
#ifdef USE_INET6
|
|
if ((use_inet6) && (opts & OPT_OUTQUE)) {
|
|
i = F_OUT;
|
|
fp = (struct frentry *)fiop->f_fout6[set];
|
|
} else if ((use_inet6) && (opts & OPT_INQUE)) {
|
|
i = F_IN;
|
|
fp = (struct frentry *)fiop->f_fin6[set];
|
|
} else
|
|
#endif
|
|
if (opts & OPT_OUTQUE) {
|
|
i = F_OUT;
|
|
fp = (struct frentry *)fiop->f_fout[set];
|
|
} else if (opts & OPT_INQUE) {
|
|
i = F_IN;
|
|
fp = (struct frentry *)fiop->f_fin[set];
|
|
} else
|
|
return;
|
|
}
|
|
if (opts & OPT_VERBOSE)
|
|
FPRINTF(stderr, "showlist:opts %#x i %d\n", opts, i);
|
|
|
|
if (opts & OPT_VERBOSE)
|
|
PRINTF("fp %p set %d\n", fp, set);
|
|
if (!fp) {
|
|
FPRINTF(stderr, "empty list for %s%s\n",
|
|
(opts & OPT_INACTIVE) ? "inactive " : "", filters[i]);
|
|
return;
|
|
}
|
|
printlist(fp);
|
|
}
|
|
|
|
|
|
static void showipstates(fd, ipsp)
|
|
int fd;
|
|
ips_stat_t *ipsp;
|
|
{
|
|
ipstate_t *istab[IPSTATE_SIZE], ips;
|
|
|
|
if (!(opts & OPT_SHOWLIST)) {
|
|
PRINTF("IP states added:\n\t%lu TCP\n\t%lu UDP\n\t%lu ICMP\n",
|
|
ipsp->iss_tcp, ipsp->iss_udp, ipsp->iss_icmp);
|
|
PRINTF("\t%lu hits\n\t%lu misses\n", ipsp->iss_hits,
|
|
ipsp->iss_miss);
|
|
PRINTF("\t%lu maximum\n\t%lu no memory\n\t%lu bkts in use\n",
|
|
ipsp->iss_max, ipsp->iss_nomem, ipsp->iss_inuse);
|
|
PRINTF("\t%lu active\n\t%lu expired\n\t%lu closed\n",
|
|
ipsp->iss_active, ipsp->iss_expire, ipsp->iss_fin);
|
|
return;
|
|
}
|
|
|
|
if (kmemcpy((char *)istab, (u_long)ipsp->iss_table, sizeof(istab)))
|
|
return;
|
|
|
|
while (ipsp->iss_list) {
|
|
if (kmemcpy((char *)&ips, (u_long)ipsp->iss_list, sizeof(ips)))
|
|
break;
|
|
ipsp->iss_list = ips.is_next;
|
|
PRINTF("%s -> ", hostname(ips.is_v, &ips.is_src.in4));
|
|
PRINTF("%s ttl %ld pass %#x pr %d state %d/%d\n",
|
|
hostname(ips.is_v, &ips.is_dst.in4),
|
|
ips.is_age, ips.is_pass, ips.is_p,
|
|
ips.is_state[0], ips.is_state[1]);
|
|
#ifdef USE_QUAD_T
|
|
PRINTF("\tpkts %qu bytes %qu",
|
|
(unsigned long long) ips.is_pkts,
|
|
(unsigned long long) ips.is_bytes);
|
|
#else
|
|
PRINTF("\tpkts %ld bytes %ld", ips.is_pkts, ips.is_bytes);
|
|
#endif
|
|
if (ips.is_p == IPPROTO_TCP)
|
|
#if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
|
|
(__FreeBSD_version >= 220000) || defined(__OpenBSD__)
|
|
PRINTF("\t%hu -> %hu %x:%x %hu:%hu",
|
|
ntohs(ips.is_sport), ntohs(ips.is_dport),
|
|
ips.is_send, ips.is_dend,
|
|
ips.is_maxswin, ips.is_maxdwin);
|
|
#else
|
|
PRINTF("\t%hu -> %hu %x:%x %hu:%hu",
|
|
ntohs(ips.is_sport), ntohs(ips.is_dport),
|
|
ips.is_send, ips.is_dend,
|
|
ips.is_maxswin, ips.is_maxdwin);
|
|
#endif
|
|
else if (ips.is_p == IPPROTO_UDP)
|
|
PRINTF(" %hu -> %hu", ntohs(ips.is_sport),
|
|
ntohs(ips.is_dport));
|
|
else if (ips.is_p == IPPROTO_ICMP
|
|
#ifdef USE_INET6
|
|
|| ips.is_p == IPPROTO_ICMPV6
|
|
#endif
|
|
)
|
|
PRINTF(" %hu %hu %d", ips.is_icmp.ics_id,
|
|
ips.is_icmp.ics_seq, ips.is_icmp.ics_type);
|
|
|
|
PRINTF("\n\t");
|
|
|
|
if (ips.is_pass & FR_PASS) {
|
|
PRINTF("pass");
|
|
} else if (ips.is_pass & FR_BLOCK) {
|
|
PRINTF("block");
|
|
switch (ips.is_pass & FR_RETMASK)
|
|
{
|
|
case FR_RETICMP :
|
|
PRINTF(" return-icmp");
|
|
break;
|
|
case FR_FAKEICMP :
|
|
PRINTF(" return-icmp-as-dest");
|
|
break;
|
|
case FR_RETRST :
|
|
PRINTF(" return-rst");
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
} else if ((ips.is_pass & FR_LOGMASK) == FR_LOG) {
|
|
PRINTF("log");
|
|
if (ips.is_pass & FR_LOGBODY)
|
|
PRINTF(" body");
|
|
if (ips.is_pass & FR_LOGFIRST)
|
|
PRINTF(" first");
|
|
} else if (ips.is_pass & FR_ACCOUNT)
|
|
PRINTF("count");
|
|
|
|
if (ips.is_pass & FR_OUTQUE)
|
|
PRINTF(" out");
|
|
else
|
|
PRINTF(" in");
|
|
|
|
if ((ips.is_pass & FR_LOG) != 0) {
|
|
PRINTF(" log");
|
|
if (ips.is_pass & FR_LOGBODY)
|
|
PRINTF(" body");
|
|
if (ips.is_pass & FR_LOGFIRST)
|
|
PRINTF(" first");
|
|
if (ips.is_pass & FR_LOGORBLOCK)
|
|
PRINTF(" or-block");
|
|
}
|
|
if (ips.is_pass & FR_QUICK)
|
|
PRINTF(" quick");
|
|
if (ips.is_pass & FR_KEEPFRAG)
|
|
PRINTF(" keep frags");
|
|
/* a given; no? */
|
|
if (ips.is_pass & FR_KEEPSTATE)
|
|
PRINTF(" keep state");
|
|
PRINTF("\tIPv%d", ips.is_v);
|
|
PRINTF("\n");
|
|
|
|
PRINTF("\tpkt_flags & %x(%x) = %x,\t",
|
|
ips.is_flags & 0xf, ips.is_flags,
|
|
ips.is_flags >> 4);
|
|
PRINTF("\tpkt_options & %x = %x\n", ips.is_optmsk,
|
|
ips.is_opt);
|
|
PRINTF("\tpkt_security & %x = %x, pkt_auth & %x = %x\n",
|
|
ips.is_secmsk, ips.is_sec, ips.is_authmsk,
|
|
ips.is_auth);
|
|
PRINTF("interfaces: in %s[%p] ",
|
|
get_ifname(ips.is_ifpin), ips.is_ifpin);
|
|
PRINTF("out %s[%p]\n",
|
|
get_ifname(ips.is_ifpout), ips.is_ifpout);
|
|
}
|
|
}
|
|
|
|
#ifdef STATETOP
|
|
static void topipstates(fd, saddr, daddr, sport, dport, protocol,
|
|
refreshtime, topclosed)
|
|
int fd;
|
|
struct in_addr saddr;
|
|
struct in_addr daddr;
|
|
int sport;
|
|
int dport;
|
|
int protocol;
|
|
int refreshtime;
|
|
int topclosed;
|
|
{
|
|
char str1[STSTRSIZE], str2[STSTRSIZE], str3[STSTRSIZE], str4[STSTRSIZE];
|
|
int maxtsentries = 0, reverse = 0, sorting = STSORT_DEFAULT;
|
|
int i, j, sfd, winx, tsentry, maxx, maxy, redraw = 0;
|
|
ipstate_t *istab[IPSTATE_SIZE], ips;
|
|
ips_stat_t ipsst, *ipsstp = &ipsst;
|
|
statetop_t *tstable = NULL, *tp;
|
|
struct timeval selecttimeout;
|
|
struct protoent *proto;
|
|
fd_set readfd;
|
|
char c = '\0';
|
|
time_t t;
|
|
|
|
/* open state device */
|
|
if ((sfd = open(IPL_STATE, O_RDONLY)) == -1) {
|
|
perror("open");
|
|
exit(-1);
|
|
}
|
|
|
|
/* init ncurses stuff */
|
|
initscr();
|
|
cbreak();
|
|
noecho();
|
|
nodelay(stdscr, 1);
|
|
|
|
/* repeat until user aborts */
|
|
while ( 1 ) {
|
|
|
|
/* get state table */
|
|
bzero((char *)&ipsst, sizeof(&ipsst));
|
|
if ((ioctl(sfd, SIOCGETFS, &ipsstp) == -1)) {
|
|
perror("ioctl(SIOCGETFS)");
|
|
exit(-1);
|
|
}
|
|
if (kmemcpy((char *)istab, (u_long)ipsstp->iss_table,
|
|
sizeof(ips)))
|
|
return;
|
|
|
|
/* clear the history */
|
|
tsentry = -1;
|
|
|
|
/* read the state table and store in tstable */
|
|
while (ipsstp->iss_list) {
|
|
if (kmemcpy((char *)&ips, (u_long)ipsstp->iss_list,
|
|
sizeof(ips)))
|
|
break;
|
|
ipsstp->iss_list = ips.is_next;
|
|
|
|
if (((saddr.s_addr == INADDR_ANY) ||
|
|
(saddr.s_addr == ips.is_saddr)) &&
|
|
((daddr.s_addr == INADDR_ANY) ||
|
|
(daddr.s_addr == ips.is_daddr)) &&
|
|
((protocol < 0) || (protocol == ips.is_p)) &&
|
|
(((ips.is_p != IPPROTO_TCP) &&
|
|
(ips.is_p != IPPROTO_UDP)) ||
|
|
(((sport < 0) ||
|
|
(htons(sport) == ips.is_sport)) &&
|
|
((dport < 0) ||
|
|
(htons(dport) == ips.is_dport)))) &&
|
|
(topclosed || (ips.is_p != IPPROTO_TCP) ||
|
|
(ips.is_state[0] < TCPS_CLOSE_WAIT) ||
|
|
(ips.is_state[1] < TCPS_CLOSE_WAIT))) {
|
|
/*
|
|
* if necessary make room for this state
|
|
* entry
|
|
*/
|
|
tsentry++;
|
|
if (!maxtsentries ||
|
|
(tsentry == maxtsentries)) {
|
|
|
|
maxtsentries += STGROWSIZE;
|
|
tstable = realloc(tstable, maxtsentries * sizeof(statetop_t));
|
|
if (!tstable) {
|
|
perror("malloc");
|
|
exit(-1);
|
|
}
|
|
}
|
|
|
|
/* fill structure */
|
|
tp = tstable + tsentry;
|
|
tp->st_src = ips.is_src;
|
|
tp->st_dst = ips.is_dst;
|
|
tp->st_p = ips.is_p;
|
|
tp->st_state[0] = ips.is_state[0];
|
|
tp->st_state[1] = ips.is_state[1];
|
|
tp->st_pkts = ips.is_pkts;
|
|
tp->st_bytes = ips.is_bytes;
|
|
tp->st_age = ips.is_age;
|
|
if ((ips.is_p == IPPROTO_TCP) ||
|
|
(ips.is_p == IPPROTO_UDP)) {
|
|
tp->st_sport = ips.is_sport;
|
|
tp->st_dport = ips.is_dport;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
/* sort the array */
|
|
if (tsentry != -1)
|
|
switch (sorting)
|
|
{
|
|
case STSORT_PR:
|
|
qsort(tstable, tsentry + 1,
|
|
sizeof(statetop_t), sort_p);
|
|
break;
|
|
case STSORT_PKTS:
|
|
qsort(tstable, tsentry + 1,
|
|
sizeof(statetop_t), sort_pkts);
|
|
break;
|
|
case STSORT_BYTES:
|
|
qsort(tstable, tsentry + 1,
|
|
sizeof(statetop_t), sort_bytes);
|
|
break;
|
|
case STSORT_TTL:
|
|
qsort(tstable, tsentry + 1,
|
|
sizeof(statetop_t), sort_ttl);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* print title */
|
|
erase();
|
|
getmaxyx(stdscr, maxy, maxx);
|
|
attron(A_BOLD);
|
|
winx = 0;
|
|
move(winx,0);
|
|
sprintf(str1, "%s - state top", IPL_VERSION);
|
|
for(j = 0 ; j < (maxx - 8 - strlen(str1)) / 2; j++)
|
|
printw(" ");
|
|
printw("%s", str1);
|
|
attroff(A_BOLD);
|
|
|
|
/* just for fun add a clock */
|
|
move(winx, maxx - 8);
|
|
t = time(NULL);
|
|
strftime(str1, 80, "%T", localtime(&t));
|
|
printw("%s\n", str1);
|
|
|
|
/*
|
|
* print the display filters, this is placed in the loop,
|
|
* because someday I might add code for changing these
|
|
* while the programming is running :-)
|
|
*/
|
|
if (sport >= 0)
|
|
sprintf(str1, "%s,%d", inet_ntoa(saddr), sport);
|
|
else
|
|
sprintf(str1, "%s", inet_ntoa(saddr));
|
|
|
|
if (dport >= 0)
|
|
sprintf(str2, "%s,%d", inet_ntoa(daddr), dport);
|
|
else
|
|
sprintf(str2, "%s", inet_ntoa(daddr));
|
|
|
|
if (protocol < 0)
|
|
strcpy(str3, "any");
|
|
else if ((proto = getprotobynumber(protocol)) != NULL)
|
|
sprintf(str3, "%s", proto->p_name);
|
|
else
|
|
sprintf(str3, "%d", protocol);
|
|
|
|
switch (sorting)
|
|
{
|
|
case STSORT_PR:
|
|
sprintf(str4, "proto");
|
|
break;
|
|
case STSORT_PKTS:
|
|
sprintf(str4, "# pkts");
|
|
break;
|
|
case STSORT_BYTES:
|
|
sprintf(str4, "# bytes");
|
|
break;
|
|
case STSORT_TTL:
|
|
sprintf(str4, "ttl");
|
|
break;
|
|
default:
|
|
sprintf(str4, "unknown");
|
|
break;
|
|
}
|
|
|
|
if (reverse)
|
|
strcat(str4, " (reverse)");
|
|
|
|
winx += 2;
|
|
move(winx,0);
|
|
printw("Src = %s Dest = %s Proto = %s Sorted by = %s\n\n",
|
|
str1, str2, str3, str4);
|
|
|
|
/* print column description */
|
|
winx += 2;
|
|
move(winx,0);
|
|
attron(A_BOLD);
|
|
printw("%-21s %-21s %3s %4s %7s %9s %9s\n", "Source IP",
|
|
"Destination IP", "ST", "PR", "#pkts", "#bytes", "ttl");
|
|
attroff(A_BOLD);
|
|
|
|
/* print all the entries */
|
|
tp = tstable;
|
|
if (reverse)
|
|
tp += tsentry;
|
|
|
|
for(i = 0; i <= tsentry; i++) {
|
|
/* print src/dest and port */
|
|
if ((tp->st_p == IPPROTO_TCP) ||
|
|
(tp->st_p == IPPROTO_UDP)) {
|
|
sprintf(str1, "%s,%hu",
|
|
inet_ntoa(tp->st_src.in4),
|
|
ntohs(tp->st_sport));
|
|
sprintf(str2, "%s,%hu",
|
|
inet_ntoa(tp->st_dst.in4),
|
|
ntohs(tp->st_dport));
|
|
} else {
|
|
sprintf(str1, "%s", inet_ntoa(tp->st_src.in4));
|
|
sprintf(str2, "%s", inet_ntoa(tp->st_dst.in4));
|
|
}
|
|
winx++;
|
|
move(winx, 0);
|
|
printw("%-21s %-21s", str1, str2);
|
|
|
|
/* print state */
|
|
sprintf(str1, "%d/%d", tp->st_state[0],
|
|
tp->st_state[1]);
|
|
printw(" %3s", str1);
|
|
|
|
/* print proto */
|
|
proto = getprotobynumber(tp->st_p);
|
|
if (proto) {
|
|
strncpy(str1, proto->p_name, 4);
|
|
str1[4] = '\0';
|
|
} else {
|
|
sprintf(str1, "%d", tp->st_p);
|
|
}
|
|
printw(" %4s", str1);
|
|
/* print #pkt/#bytes */
|
|
#ifdef USE_QUAD_T
|
|
printw(" %7qu %9qu", (unsigned long long) tp->st_pkts,
|
|
(unsigned long long) tp->st_bytes);
|
|
#else
|
|
printw(" %7lu %9lu", tp->st_pkts, tp->st_bytes);
|
|
#endif
|
|
printw(" %9s", ttl_to_string(tp->st_age));
|
|
|
|
if (reverse)
|
|
tp--;
|
|
else
|
|
tp++;
|
|
}
|
|
|
|
/* screen data structure is filled, now update the screen */
|
|
if (redraw)
|
|
clearok(stdscr,1);
|
|
|
|
refresh();
|
|
if (redraw) {
|
|
clearok(stdscr,0);
|
|
redraw = 0;
|
|
}
|
|
|
|
/* wait for key press or a 1 second time out period */
|
|
selecttimeout.tv_sec = refreshtime;
|
|
selecttimeout.tv_usec = 0;
|
|
FD_ZERO(&readfd);
|
|
FD_SET(0, &readfd);
|
|
select(1, &readfd, NULL, NULL, &selecttimeout);
|
|
|
|
/* if key pressed, read all waiting keys */
|
|
if (FD_ISSET(0, &readfd))
|
|
while ((c = wgetch(stdscr)) != ERR) {
|
|
if (tolower(c) == 'l') {
|
|
redraw = 1;
|
|
} else if (tolower(c) == 'q') {
|
|
nocbreak();
|
|
endwin();
|
|
exit(0);
|
|
} else if (tolower(c) == 'r') {
|
|
reverse = !reverse;
|
|
} else if (tolower(c) == 's') {
|
|
sorting++;
|
|
if (sorting > STSORT_MAX)
|
|
sorting = 0;
|
|
}
|
|
}
|
|
} /* while */
|
|
|
|
close(sfd);
|
|
|
|
printw("\n");
|
|
nocbreak();
|
|
endwin();
|
|
}
|
|
#endif
|
|
|
|
static void showfrstates(fd, ifsp)
|
|
int fd;
|
|
ipfrstat_t *ifsp;
|
|
{
|
|
struct ipfr *ipfrtab[IPFT_SIZE], ifr;
|
|
frentry_t fr;
|
|
int i;
|
|
|
|
PRINTF("IP fragment states:\n\t%lu new\n\t%lu expired\n\t%lu hits\n",
|
|
ifsp->ifs_new, ifsp->ifs_expire, ifsp->ifs_hits);
|
|
PRINTF("\t%lu no memory\n\t%lu already exist\n",
|
|
ifsp->ifs_nomem, ifsp->ifs_exists);
|
|
PRINTF("\t%lu inuse\n", ifsp->ifs_inuse);
|
|
if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_table, sizeof(ipfrtab)))
|
|
return;
|
|
for (i = 0; i < IPFT_SIZE; i++)
|
|
while (ipfrtab[i]) {
|
|
if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
|
|
sizeof(ifr)) == -1)
|
|
break;
|
|
PRINTF("%s -> ", hostname(4, &ifr.ipfr_src));
|
|
if (kmemcpy((char *)&fr, (u_long)ifr.ipfr_rule,
|
|
sizeof(fr)) == -1)
|
|
break;
|
|
PRINTF("%s %d %d %d %#02x = %#x\n",
|
|
hostname(4, &ifr.ipfr_dst), ifr.ipfr_id,
|
|
ifr.ipfr_ttl, ifr.ipfr_p, ifr.ipfr_tos,
|
|
fr.fr_flags);
|
|
ipfrtab[i] = ifr.ipfr_next;
|
|
}
|
|
}
|
|
|
|
|
|
static void showauthstates(fd, asp)
|
|
int fd;
|
|
fr_authstat_t *asp;
|
|
{
|
|
frauthent_t *frap, fra;
|
|
|
|
#ifdef USE_QUAD_T
|
|
printf("Authorisation hits: %qu\tmisses %qu\n",
|
|
(unsigned long long) asp->fas_hits,
|
|
(unsigned long long) asp->fas_miss);
|
|
#else
|
|
printf("Authorisation hits: %ld\tmisses %ld\n", asp->fas_hits,
|
|
asp->fas_miss);
|
|
#endif
|
|
printf("nospace %ld\nadded %ld\nsendfail %ld\nsendok %ld\n",
|
|
asp->fas_nospace, asp->fas_added, asp->fas_sendfail,
|
|
asp->fas_sendok);
|
|
printf("queok %ld\nquefail %ld\nexpire %ld\n",
|
|
asp->fas_queok, asp->fas_quefail, asp->fas_expire);
|
|
|
|
frap = asp->fas_faelist;
|
|
while (frap) {
|
|
if (kmemcpy((char *)&fra, (u_long)frap, sizeof(fra)) == -1)
|
|
break;
|
|
|
|
printf("age %ld\t", fra.fae_age);
|
|
printfr(&fra.fae_fr);
|
|
frap = fra.fae_next;
|
|
}
|
|
}
|
|
|
|
|
|
static char *get_ifname(ptr)
|
|
void *ptr;
|
|
{
|
|
#if SOLARIS
|
|
char *ifname;
|
|
ill_t ill;
|
|
|
|
if (ptr == (void *)-1)
|
|
return "!";
|
|
if (ptr == NULL)
|
|
return "-";
|
|
|
|
if (kmemcpy((char *)&ill, (u_long)ptr, sizeof(ill)) == -1)
|
|
return "X";
|
|
ifname = malloc(ill.ill_name_length + 1);
|
|
if (kmemcpy(ifname, (u_long)ill.ill_name,
|
|
ill.ill_name_length) == -1)
|
|
return "X";
|
|
return ifname;
|
|
#else
|
|
# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
|
|
defined(__OpenBSD__)
|
|
#else
|
|
char buf[32];
|
|
int len;
|
|
# endif
|
|
struct ifnet netif;
|
|
|
|
if (ptr == (void *)-1)
|
|
return "!";
|
|
if (ptr == NULL)
|
|
return "-";
|
|
|
|
if (kmemcpy((char *)&netif, (u_long)ptr, sizeof(netif)) == -1)
|
|
return "X";
|
|
# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
|
|
defined(__OpenBSD__)
|
|
return strdup(netif.if_xname);
|
|
# else
|
|
if (kstrncpy(buf, (u_long)netif.if_name, sizeof(buf)) == -1)
|
|
return "X";
|
|
if (netif.if_unit < 10)
|
|
len = 2;
|
|
else if (netif.if_unit < 1000)
|
|
len = 3;
|
|
else if (netif.if_unit < 10000)
|
|
len = 4;
|
|
else
|
|
len = 5;
|
|
buf[sizeof(buf) - len] = '\0';
|
|
sprintf(buf + strlen(buf), "%d", netif.if_unit % 10000);
|
|
return strdup(buf);
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
|
|
static void showgroups(fiop)
|
|
struct friostat *fiop;
|
|
{
|
|
static char *gnames[3] = { "Filter", "Accounting", "Authentication" };
|
|
frgroup_t *fp, grp;
|
|
int on, off, i;
|
|
|
|
on = fiop->f_active;
|
|
off = 1 - on;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
printf("%s groups (active):\n", gnames[i]);
|
|
for (fp = fiop->f_groups[i][on]; fp; fp = grp.fg_next)
|
|
if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
|
|
break;
|
|
else
|
|
printf("%hu\n", grp.fg_num);
|
|
printf("%s groups (inactive):\n", gnames[i]);
|
|
for (fp = fiop->f_groups[i][off]; fp; fp = grp.fg_next)
|
|
if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
|
|
break;
|
|
else
|
|
printf("%hu\n", grp.fg_num);
|
|
}
|
|
}
|
|
|
|
static void parse_ipportstr(argument, ip, port)
|
|
const char *argument;
|
|
struct in_addr *ip;
|
|
int *port;
|
|
{
|
|
|
|
char *s, *comma;
|
|
|
|
/* make working copy of argument, Theoretically you must be able
|
|
* to write to optarg, but that seems very ugly to me....
|
|
*/
|
|
if ((s = malloc(strlen(argument) + 1)) == NULL)
|
|
perror("malloc");
|
|
strcpy(s, argument);
|
|
|
|
/* get port */
|
|
if ((comma = strchr(s, ',')) != NULL) {
|
|
if (!strcasecmp(s, "any")) {
|
|
*port = -1;
|
|
} else if (!sscanf(comma + 1, "%d", port) ||
|
|
(*port < 0) || (*port > 65535)) {
|
|
fprintf(stderr, "Invalid port specfication in %s\n",
|
|
argument);
|
|
exit(-2);
|
|
}
|
|
*comma = '\0';
|
|
}
|
|
|
|
|
|
/* get ip address */
|
|
if (!strcasecmp(s, "any")) {
|
|
ip->s_addr = INADDR_ANY;
|
|
} else if (!inet_aton(s, ip)) {
|
|
fprintf(stderr, "Invalid IP address: %s\n", s);
|
|
exit(-2);
|
|
}
|
|
|
|
/* free allocated memory */
|
|
free(s);
|
|
}
|
|
|
|
|
|
#ifdef STATETOP
|
|
static char ttlbuf[STSTRSIZE];
|
|
|
|
static char *ttl_to_string(ttl)
|
|
long int ttl;
|
|
{
|
|
|
|
int hours, minutes, seconds;
|
|
|
|
/* ttl is in half seconds */
|
|
ttl /= 2;
|
|
|
|
hours = ttl / 3600;
|
|
ttl = ttl % 3600;
|
|
minutes = ttl / 60;
|
|
seconds = ttl % 60;
|
|
|
|
if (hours > 0 )
|
|
sprintf(ttlbuf, "%2d:%02d:%02d", hours, minutes, seconds);
|
|
else
|
|
sprintf(ttlbuf, "%2d:%02d", minutes, seconds);
|
|
return ttlbuf;
|
|
}
|
|
|
|
|
|
static int sort_pkts(a, b)
|
|
const void *a;
|
|
const void *b;
|
|
{
|
|
|
|
register const statetop_t *ap = a;
|
|
register const statetop_t *bp = b;
|
|
|
|
if (ap->st_pkts == bp->st_pkts)
|
|
return 0;
|
|
else if (ap->st_pkts < bp->st_pkts)
|
|
return 1;
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int sort_bytes(a, b)
|
|
const void *a;
|
|
const void *b;
|
|
{
|
|
register const statetop_t *ap = a;
|
|
register const statetop_t *bp = b;
|
|
|
|
if (ap->st_bytes == bp->st_bytes)
|
|
return 0;
|
|
else if (ap->st_bytes < bp->st_bytes)
|
|
return 1;
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int sort_p(a, b)
|
|
const void *a;
|
|
const void *b;
|
|
{
|
|
register const statetop_t *ap = a;
|
|
register const statetop_t *bp = b;
|
|
|
|
if (ap->st_p == bp->st_p)
|
|
return 0;
|
|
else if (ap->st_p < bp->st_p)
|
|
return 1;
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int sort_ttl(a, b)
|
|
const void *a;
|
|
const void *b;
|
|
{
|
|
register const statetop_t *ap = a;
|
|
register const statetop_t *bp = b;
|
|
|
|
if (ap->st_age == bp->st_age)
|
|
return 0;
|
|
else if (ap->st_age < bp->st_age)
|
|
return 1;
|
|
return -1;
|
|
}
|
|
#endif
|