/* $NetBSD: ipfstat.c,v 1.6 2018/02/04 08:19:42 mrg Exp $ */
/*
* Copyright (C) 2012 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*/
#ifdef __FreeBSD__
# ifndef __FreeBSD_cc_version
# include <osreldate.h>
# else
# if __FreeBSD_cc_version < 430000
# include <osreldate.h>
# endif
# endif
#endif
#include <sys/ioctl.h>
#include <ctype.h>
#include <fcntl.h>
#ifdef linux
# include <linux/a.out.h>
#else
# include <nlist.h>
#endif
#include <ctype.h>
#if defined(sun) && (defined(__svr4__) || defined(__SVR4))
# include <stddef.h>
#endif
#include "ipf.h"
#include "netinet/ipl.h"
#if defined(STATETOP)
# if defined(_BSDI_VERSION)
# undef STATETOP
# endif
# if defined(__FreeBSD__) && \
(!defined(__FreeBSD_version) || (__FreeBSD_version < 430000))
# undef STATETOP
# endif
# if defined(__NetBSD_Version__) && (__NetBSD_Version__ < 105000000)
# undef STATETOP
# endif
# if defined(sun)
# if defined(__svr4__) || defined(__SVR4)
# include <sys/select.h>
# else
# undef STATETOP /* NOT supported on SunOS4 */
# endif
# endif
#endif
#if defined(STATETOP) && !defined(linux)
# include <netinet/ip_var.h>
# include <netinet/tcp_fsm.h>
#endif
#ifdef STATETOP
# include <ctype.h>
# include <signal.h>
# include <time.h>
# if SOLARIS || defined(__NetBSD__) || defined(_BSDI_VERSION) || \
defined(__sgi)
# ifdef ERR
# undef ERR
# endif
# include <curses.h>
# else /* SOLARIS */
# include <ncurses.h>
# endif /* SOLARIS */
#endif /* STATETOP */
#include "kmem.h"
#if defined(__NetBSD__) || (__OpenBSD__)
# include <paths.h>
#endif
#if !defined(lint)
static __attribute__((__used__)) const char sccsid[] = "@(#)fils.c 1.21 4/20/96 (C) 1993-2000 Darren Reed";
static __attribute__((__used__)) const char rcsid[] = "@(#)Id: ipfstat.c,v 1.1.1.2 2012/07/22 13:44:55 darrenr";
#endif
#ifdef __hpux
# define nlist nlist64
#endif
extern char *optarg;
extern int optind;
extern int opterr;
#define PRINTF (void)printf
#define FPRINTF (void)fprintf
static char *filters[4] = { "ipfilter(in)", "ipfilter(out)",
"ipacct(in)", "ipacct(out)" };
static int state_logging = -1;
static wordtab_t *state_fields = NULL;
int nohdrfields = 0;
int opts = 0;
int use_inet6 = 0;
int live_kernel = 1;
int state_fd = -1;
int ipf_fd = -1;
int auth_fd = -1;
int nat_fd = -1;
frgroup_t *grtop = NULL;
frgroup_t *grtail = NULL;
char *blockreasons[FRB_MAX_VALUE + 1] = {
"packet blocked",
"log rule failure",
"pps rate exceeded",
"jumbogram",
"makefrip failed",
"cannot add state",
"IP ID update failed",
"log-or-block failed",
"decapsulate failure",
"cannot create new auth entry",
"packet queued for auth",
"buffer coalesce failure",
"buffer pullup failure",
"auth feedback",
"bad fragment",
"IPv4 NAT failure",
"IPv6 NAT failure"
};
#ifdef STATETOP
#define STSTRSIZE 80
#define STGROWSIZE 16
#define HOSTNMLEN 40
#define STSORT_PR 0
#define STSORT_PKTS 1
#define STSORT_BYTES 2
#define STSORT_TTL 3
#define STSORT_SRCIP 4
#define STSORT_SRCPT 5
#define STSORT_DSTIP 6
#define STSORT_DSTPT 7
#define STSORT_MAX STSORT_DSTPT
#define STSORT_DEFAULT STSORT_BYTES
typedef struct statetop {
i6addr_t st_src;
i6addr_t st_dst;
u_short st_sport;
u_short st_dport;
u_char st_p;
u_char st_v;
u_char st_state[2];
U_QUAD_T st_pkts;
U_QUAD_T st_bytes;
u_long st_age;
} statetop_t;
#endif
int main __P((int, char *[]));
static int fetchfrag __P((int, int, ipfr_t *));
static void showstats __P((friostat_t *, u_32_t));
static void showfrstates __P((ipfrstat_t *, u_long));
static void showlist __P((friostat_t *));
static void showstatestats __P((ips_stat_t *));
static void showipstates __P((ips_stat_t *, int *));
static void showauthstates __P((ipf_authstat_t *));
static void showtqtable_live __P((int));
static void showgroups __P((friostat_t *));
static void usage __P((char *));
static int state_matcharray __P((ipstate_t *, int *));
static int printlivelist __P((friostat_t *, int, int, frentry_t *,
char *, char *));
static void printdeadlist __P((friostat_t *, int, int, frentry_t *,
char *, char *));
static void printside __P((char *, ipf_statistics_t *));
static void parse_ipportstr __P((const char *, i6addr_t *, int *));
static void ipfstate_live __P((char *, friostat_t **, ips_stat_t **,
ipfrstat_t **, ipf_authstat_t **, u_32_t *));
static void ipfstate_dead __P((char *, friostat_t **, ips_stat_t **,
ipfrstat_t **, ipf_authstat_t **, u_32_t *));
static ipstate_t *fetchstate __P((ipstate_t *, ipstate_t *));
#ifdef STATETOP
static void topipstates __P((i6addr_t, i6addr_t, int, int, int,
int, int, int, int *));
static void sig_break __P((int));
static void sig_resize __P((int));
static char *getip __P((int, i6addr_t *));
static char *ttl_to_string __P((long));
static int sort_p __P((const void *, const void *));
static int sort_pkts __P((const void *, const void *));
static int sort_bytes __P((const void *, const void *));
static int sort_ttl __P((const void *, const void *));
static int sort_srcip __P((const void *, const void *));
static int sort_srcpt __P((const void *, const void *));
static int sort_dstip __P((const void *, const void *));
static int sort_dstpt __P((const void *, const void *));
#endif
static void usage(name)
char *name;
{
#ifdef USE_INET6
fprintf(stderr, "Usage: %s [-6aAdfghIilnoRsv]\n", name);
#else
fprintf(stderr, "Usage: %s [-aAdfghIilnoRsv]\n", name);
#endif
fprintf(stderr, " %s [-M corefile] [-N symbol-list]\n", name);
#ifdef USE_INET6
fprintf(stderr, " %s -t [-6C] ", name);
#else
fprintf(stderr, " %s -t [-C] ", name);
#endif
fprintf(stderr, "[-D destination address] [-P protocol] [-S source address] [-T refresh time]\n");
exit(1);
}
int main(argc,argv)
int argc;
char *argv[];
{
ipf_authstat_t frauthst;
ipf_authstat_t *frauthstp = &frauthst;
friostat_t fio;
friostat_t *fiop = &fio;
ips_stat_t ipsst;
ips_stat_t *ipsstp = &ipsst;
ipfrstat_t ifrst;
ipfrstat_t *ifrstp = &ifrst;
char *options;
char *kern = NULL;
char *memf = NULL;
int c;
int myoptind;
int *filter = NULL;
int protocol = -1; /* -1 = wild card for any protocol */
int refreshtime = 1; /* default update time */
int sport = -1; /* -1 = wild card for any source port */
int dport = -1; /* -1 = wild card for any dest port */
int topclosed = 0; /* do not show closed tcp sessions */
i6addr_t saddr, daddr;
u_32_t frf;
#ifdef USE_INET6
options = "6aACdfghIilnostvD:m:M:N:O:P:RS:T:";
#else
options = "aACdfghIilnostvD:m:M:N:O:P:RS:T:";
#endif
saddr.in4.s_addr = INADDR_ANY; /* default any v4 source addr */
daddr.in4.s_addr = INADDR_ANY; /* default any v4 dest addr */
#ifdef USE_INET6
saddr.in6 = in6addr_any; /* default any v6 source addr */
daddr.in6 = in6addr_any; /* default any v6 dest addr */
#endif
/* Don't warn about invalid flags when we run getopt for the 1st time */
opterr = 0;
/*
* Parse these two arguments now lest there be any buffer overflows
* in the parsing of the rest.
*/
myoptind = optind;
while ((c = getopt(argc, argv, options)) != -1) {
switch (c)
{
case 'M' :
memf = optarg;
live_kernel = 0;
break;
case 'N' :
kern = optarg;
live_kernel = 0;
break;
}
}
optind = myoptind;
if (live_kernel == 1) {
if ((state_fd = open(IPSTATE_NAME, O_RDONLY)) == -1) {
perror("open(IPSTATE_NAME)");
exit(-1);
}
if ((auth_fd = open(IPAUTH_NAME, O_RDONLY)) == -1) {
perror("open(IPAUTH_NAME)");
exit(-1);
}
if ((nat_fd = open(IPNAT_NAME, O_RDONLY)) == -1) {
perror("open(IPAUTH_NAME)");
exit(-1);
}
if ((ipf_fd = open(IPL_NAME, O_RDONLY)) == -1) {
fprintf(stderr, "open(%s)", IPL_NAME);
perror("");
exit(-1);
}
}
if (kern != NULL || memf != NULL) {
(void)setgid(getgid());
(void)setuid(getuid());
}
if (live_kernel == 1) {
(void) checkrev(IPL_NAME);
} else {
if (openkmem(kern, memf) == -1)
exit(-1);
}
(void)setgid(getgid());
(void)setuid(getuid());
opterr = 1;
while ((c = getopt(argc, argv, options)) != -1)
{
switch (c)
{
#ifdef USE_INET6
case '6' :
use_inet6 = 1;
break;
#endif
case 'a' :
opts |= OPT_ACCNT|OPT_SHOWLIST;
break;
case 'A' :
opts |= OPT_AUTHSTATS;
break;
case 'C' :
topclosed = 1;
break;
case 'd' :
opts |= OPT_DEBUG;
break;
case 'D' :
parse_ipportstr(optarg, &daddr, &dport);
break;
case 'f' :
opts |= OPT_FRSTATES;
break;
case 'g' :
opts |= OPT_GROUPS;
break;
case 'h' :
opts |= OPT_HITS;
break;
case 'i' :
opts |= OPT_INQUE|OPT_SHOWLIST;
break;
case 'I' :
opts |= OPT_INACTIVE;
break;
case 'l' :
opts |= OPT_SHOWLIST;
break;
case 'm' :
filter = parseipfexpr(optarg, NULL);
if (filter == NULL) {
fprintf(stderr, "Error parseing '%s'\n",
optarg);
exit(1);
}
break;
case 'M' :
break;
case 'N' :
break;
case 'n' :
opts |= OPT_SHOWLINENO;
break;
case 'o' :
opts |= OPT_OUTQUE|OPT_SHOWLIST;
break;
case 'O' :
state_fields = parsefields(statefields, optarg);
break;
case 'P' :
protocol = getproto(optarg);
if (protocol == -1) {
fprintf(stderr, "%s: Invalid protocol: %s\n",
argv[0], optarg);
exit(-2);
}
break;
case 'R' :
opts |= OPT_NORESOLVE;
break;
case 's' :
opts |= OPT_IPSTATES;
break;
case 'S' :
parse_ipportstr(optarg, &saddr, &sport);
break;
case 't' :
#ifdef STATETOP
opts |= OPT_STATETOP;
break;
#else
fprintf(stderr,
"%s: state top facility not compiled in\n",
argv[0]);
exit(-2);
#endif
case 'T' :
if (!sscanf(optarg, "%d", &refreshtime) ||
(refreshtime <= 0)) {
fprintf(stderr,
"%s: Invalid refreshtime < 1 : %s\n",
argv[0], optarg);
exit(-2);
}
break;
case 'v' :
opts |= OPT_VERBOSE;
break;
default :
usage(argv[0]);
break;
}
}
if (live_kernel == 1) {
bzero((char *)&fio, sizeof(fio));
bzero((char *)&ipsst, sizeof(ipsst));
bzero((char *)&ifrst, sizeof(ifrst));
ipfstate_live(IPL_NAME, &fiop, &ipsstp, &ifrstp,
&frauthstp, &frf);
} else {
ipfstate_dead(kern, &fiop, &ipsstp, &ifrstp, &frauthstp, &frf);
}
if (opts & OPT_IPSTATES) {
showipstates(ipsstp, filter);
} else if (opts & OPT_SHOWLIST) {
showlist(fiop);
if ((opts & OPT_OUTQUE) && (opts & OPT_INQUE)){
opts &= ~OPT_OUTQUE;
showlist(fiop);
}
} else if (opts & OPT_FRSTATES)
showfrstates(ifrstp, fiop->f_ticks);
#ifdef STATETOP
else if (opts & OPT_STATETOP)
topipstates(saddr, daddr, sport, dport, protocol,
use_inet6 ? 6 : 4, refreshtime, topclosed, filter);
#endif
else if (opts & OPT_AUTHSTATS)
showauthstates(frauthstp);
else if (opts & OPT_GROUPS)
showgroups(fiop);
else
showstats(fiop, frf);
return 0;
}
/*
* Fill in the stats structures from the live kernel, using a combination
* of ioctl's and copying directly from kernel memory.
*/
static void ipfstate_live(device, fiopp, ipsstpp, ifrstpp, frauthstpp, frfp)
char *device;
friostat_t **fiopp;
ips_stat_t **ipsstpp;
ipfrstat_t **ifrstpp;
ipf_authstat_t **frauthstpp;
u_32_t *frfp;
{
ipfobj_t ipfo;
if (checkrev(device) == -1) {
fprintf(stderr, "User/kernel version check failed\n");
exit(1);
}
if ((opts & OPT_AUTHSTATS) == 0) {
bzero((caddr_t)&ipfo, sizeof(ipfo));
ipfo.ipfo_rev = IPFILTER_VERSION;
ipfo.ipfo_type = IPFOBJ_IPFSTAT;
ipfo.ipfo_size = sizeof(friostat_t);
ipfo.ipfo_ptr = (void *)*fiopp;
if (ioctl(ipf_fd, SIOCGETFS, &ipfo) == -1) {
ipferror(ipf_fd, "ioctl(ipf:SIOCGETFS)");
exit(-1);
}
if (ioctl(ipf_fd, SIOCGETFF, frfp) == -1)
ipferror(ipf_fd, "ioctl(SIOCGETFF)");
}
if ((opts & OPT_IPSTATES) != 0) {
bzero((caddr_t)&ipfo, sizeof(ipfo));
ipfo.ipfo_rev = IPFILTER_VERSION;
ipfo.ipfo_type = IPFOBJ_STATESTAT;
ipfo.ipfo_size = sizeof(ips_stat_t);
ipfo.ipfo_ptr = (void *)*ipsstpp;
if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
ipferror(state_fd, "ioctl(state:SIOCGETFS)");
exit(-1);
}
if (ioctl(state_fd, SIOCGETLG, &state_logging) == -1) {
ipferror(state_fd, "ioctl(state:SIOCGETLG)");
exit(-1);
}
}
if ((opts & OPT_FRSTATES) != 0) {
bzero((caddr_t)&ipfo, sizeof(ipfo));
ipfo.ipfo_rev = IPFILTER_VERSION;
ipfo.ipfo_type = IPFOBJ_FRAGSTAT;
ipfo.ipfo_size = sizeof(ipfrstat_t);
ipfo.ipfo_ptr = (void *)*ifrstpp;
if (ioctl(ipf_fd, SIOCGFRST, &ipfo) == -1) {
ipferror(ipf_fd, "ioctl(SIOCGFRST)");
exit(-1);
}
}
if (opts & OPT_DEBUG)
PRINTF("opts %#x name %s\n", opts, device);
if ((opts & OPT_AUTHSTATS) != 0) {
bzero((caddr_t)&ipfo, sizeof(ipfo));
ipfo.ipfo_rev = IPFILTER_VERSION;
ipfo.ipfo_type = IPFOBJ_AUTHSTAT;
ipfo.ipfo_size = sizeof(ipf_authstat_t);
ipfo.ipfo_ptr = (void *)*frauthstpp;
if (ioctl(auth_fd, SIOCATHST, &ipfo) == -1) {
ipferror(auth_fd, "ioctl(SIOCATHST)");
exit(-1);
}
}
}
/*
* Build up the stats structures from data held in the "core" memory.
* This is mainly useful when looking at data in crash dumps and ioctl's
* just won't work any more.
*/
static void ipfstate_dead(kernel, fiopp, ipsstpp, ifrstpp, frauthstpp, frfp)
char *kernel;
friostat_t **fiopp;
ips_stat_t **ipsstpp;
ipfrstat_t **ifrstpp;
ipf_authstat_t **frauthstpp;
u_32_t *frfp;
{
static ipf_authstat_t frauthst, *frauthstp;
static ipftq_t ipstcptab[IPF_TCP_NSTATES];
static ips_stat_t ipsst, *ipsstp;
static ipfrstat_t ifrst, *ifrstp;
static friostat_t fio, *fiop;
int temp;
void *rules[2][2];
struct nlist deadlist[44] = {
{ "ipf_auth_stats", 0, 0, 0, 0 }, /* 0 */
{ "fae_list", 0, 0, 0, 0 },
{ "ipauth", 0, 0, 0, 0 },
{ "ipf_auth_list", 0, 0, 0, 0 },
{ "ipf_auth_start", 0, 0, 0, 0 },
{ "ipf_auth_end", 0, 0, 0, 0 }, /* 5 */
{ "ipf_auth_next", 0, 0, 0, 0 },
{ "ipf_auth", 0, 0, 0, 0 },
{ "ipf_auth_used", 0, 0, 0, 0 },
{ "ipf_auth_size", 0, 0, 0, 0 },
{ "ipf_auth_defaultage", 0, 0, 0, 0 }, /* 10 */
{ "ipf_auth_pkts", 0, 0, 0, 0 },
{ "ipf_auth_lock", 0, 0, 0, 0 },
{ "frstats", 0, 0, 0, 0 },
{ "ips_stats", 0, 0, 0, 0 },
{ "ips_num", 0, 0, 0, 0 }, /* 15 */
{ "ips_wild", 0, 0, 0, 0 },
{ "ips_list", 0, 0, 0, 0 },
{ "ips_table", 0, 0, 0, 0 },
{ "ipf_state_max", 0, 0, 0, 0 },
{ "ipf_state_size", 0, 0, 0, 0 }, /* 20 */
{ "ipf_state_doflush", 0, 0, 0, 0 },
{ "ipf_state_lock", 0, 0, 0, 0 },
{ "ipfr_heads", 0, 0, 0, 0 },
{ "ipfr_nattab", 0, 0, 0, 0 },
{ "ipfr_stats", 0, 0, 0, 0 }, /* 25 */
{ "ipfr_inuse", 0, 0, 0, 0 },
{ "ipf_ipfrttl", 0, 0, 0, 0 },
{ "ipf_frag_lock", 0, 0, 0, 0 },
{ "ipfr_timer_id", 0, 0, 0, 0 },
{ "ipf_nat_lock", 0, 0, 0, 0 }, /* 30 */
{ "ipf_rules", 0, 0, 0, 0 },
{ "ipf_acct", 0, 0, 0, 0 },
{ "ipl_frouteok", 0, 0, 0, 0 },
{ "ipf_running", 0, 0, 0, 0 },
{ "ipf_groups", 0, 0, 0, 0 }, /* 35 */
{ "ipf_active", 0, 0, 0, 0 },
{ "ipf_pass", 0, 0, 0, 0 },
{ "ipf_flags", 0, 0, 0, 0 },
{ "ipf_state_logging", 0, 0, 0, 0 },
{ "ips_tqtqb", 0, 0, 0, 0 }, /* 40 */
{ NULL, 0, 0, 0, 0 }
};
frauthstp = &frauthst;
ipsstp = &ipsst;
ifrstp = &ifrst;
fiop = &fio;
*frfp = 0;
*fiopp = fiop;
*ipsstpp = ipsstp;
*ifrstpp = ifrstp;
*frauthstpp = frauthstp;
bzero((char *)fiop, sizeof(*fiop));
bzero((char *)ipsstp, sizeof(*ipsstp));
bzero((char *)ifrstp, sizeof(*ifrstp));
bzero((char *)frauthstp, sizeof(*frauthstp));
if (nlist(kernel, deadlist) == -1) {
fprintf(stderr, "nlist error\n");
return;
}
/*
* This is for SIOCGETFF.
*/
kmemcpy((char *)frfp, (u_long)deadlist[40].n_value, sizeof(*frfp));
/*
* f_locks is a combination of the lock variable from each part of
* ipfilter (state, auth, nat, fragments).
*/
kmemcpy((char *)fiop, (u_long)deadlist[13].n_value, sizeof(*fiop));
kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[22].n_value,
sizeof(fiop->f_locks[0]));
kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[30].n_value,
sizeof(fiop->f_locks[1]));
kmemcpy((char *)&fiop->f_locks[2], (u_long)deadlist[28].n_value,
sizeof(fiop->f_locks[2]));
kmemcpy((char *)&fiop->f_locks[3], (u_long)deadlist[12].n_value,
sizeof(fiop->f_locks[3]));
/*
* Get pointers to each list of rules (active, inactive, in, out)
*/
kmemcpy((char *)&rules, (u_long)deadlist[31].n_value, sizeof(rules));
fiop->f_fin[0] = rules[0][0];
fiop->f_fin[1] = rules[0][1];
fiop->f_fout[0] = rules[1][0];
fiop->f_fout[1] = rules[1][1];
/*
* Now get accounting rules pointers.
*/
kmemcpy((char *)&rules, (u_long)deadlist[33].n_value, sizeof(rules));
fiop->f_acctin[0] = rules[0][0];
fiop->f_acctin[1] = rules[0][1];
fiop->f_acctout[0] = rules[1][0];
fiop->f_acctout[1] = rules[1][1];
/*
* A collection of "global" variables used inside the kernel which
* are all collected in friostat_t via ioctl.
*/
kmemcpy((char *)&fiop->f_froute, (u_long)deadlist[33].n_value,
sizeof(fiop->f_froute));
kmemcpy((char *)&fiop->f_running, (u_long)deadlist[34].n_value,
sizeof(fiop->f_running));
kmemcpy((char *)&fiop->f_groups, (u_long)deadlist[35].n_value,
sizeof(fiop->f_groups));
kmemcpy((char *)&fiop->f_active, (u_long)deadlist[36].n_value,
sizeof(fiop->f_active));
kmemcpy((char *)&fiop->f_defpass, (u_long)deadlist[37].n_value,
sizeof(fiop->f_defpass));
/*
* Build up the state information stats structure.
*/
kmemcpy((char *)ipsstp, (u_long)deadlist[14].n_value, sizeof(*ipsstp));
kmemcpy((char *)&temp, (u_long)deadlist[15].n_value, sizeof(temp));
kmemcpy((char *)ipstcptab, (u_long)deadlist[40].n_value,
sizeof(ipstcptab));
ipsstp->iss_active = temp;
ipsstp->iss_table = (void *)deadlist[18].n_value;
ipsstp->iss_list = (void *)deadlist[17].n_value;
ipsstp->iss_tcptab = ipstcptab;
/*
* Build up the authentiation information stats structure.
*/
kmemcpy((char *)frauthstp, (u_long)deadlist[0].n_value,
sizeof(*frauthstp));
frauthstp->fas_faelist = (void *)deadlist[1].n_value;
/*
* Build up the fragment information stats structure.
*/
kmemcpy((char *)ifrstp, (u_long)deadlist[25].n_value,
sizeof(*ifrstp));
ifrstp->ifs_table = (void *)deadlist[23].n_value;
ifrstp->ifs_nattab = (void *)deadlist[24].n_value;
kmemcpy((char *)&ifrstp->ifs_inuse, (u_long)deadlist[26].n_value,
sizeof(ifrstp->ifs_inuse));
/*
* Get logging on/off switches
*/
kmemcpy((char *)&state_logging, (u_long)deadlist[41].n_value,
sizeof(state_logging));
}
static void printside(side, frs)
char *side;
ipf_statistics_t *frs;
{
int i;
PRINTF("%lu\t%s bad packets\n", frs->fr_bad, side);
#ifdef USE_INET6
PRINTF("%lu\t%s IPv6 packets\n", frs->fr_ipv6, side);
#endif
PRINTF("%lu\t%s packets blocked\n", frs->fr_block, side);
PRINTF("%lu\t%s packets passed\n", frs->fr_pass, side);
PRINTF("%lu\t%s packets not matched\n", frs->fr_nom, side);
PRINTF("%lu\t%s packets counted\n", frs->fr_acct, side);
PRINTF("%lu\t%s packets short\n", frs->fr_short, side);
PRINTF("%lu\t%s packets logged and blocked\n", frs->fr_bpkl, side);
PRINTF("%lu\t%s packets logged and passed\n", frs->fr_ppkl, side);
PRINTF("%lu\t%s fragment state kept\n", frs->fr_nfr, side);
PRINTF("%lu\t%s fragment state lost\n", frs->fr_bnfr, side);
PRINTF("%lu\t%s packet state kept\n", frs->fr_ads, side);
PRINTF("%lu\t%s packet state lost\n", frs->fr_bads, side);
PRINTF("%lu\t%s invalid source\n", frs->fr_v4_badsrc, side);
PRINTF("%lu\t%s cache hits\n", frs->fr_chit, side);
PRINTF("%lu\t%s cache misses\n", frs->fr_cmiss, side);
PRINTF("%lu\t%s bad coalesces\n", frs->fr_badcoalesces, side);
PRINTF("%lu\t%s pullups succeeded\n", frs->fr_pull[0], side);
PRINTF("%lu\t%s pullups failed\n", frs->fr_pull[1], side);
PRINTF("%lu\t%s TCP checksum failures\n", frs->fr_tcpbad, side);
for (i = 0; i <= FRB_MAX_VALUE; i++)
PRINTF("%lu\t%s block reason %s\n",
frs->fr_blocked[i], side, blockreasons[i]);
}
/*
* Display the kernel stats for packets blocked and passed and other
* associated running totals which are kept.
*/
static void showstats(fp, frf)
struct friostat *fp;
u_32_t frf;
{
printside("input", &fp->f_st[0]);
printside("output", &fp->f_st[1]);
PRINTF("%lu\tpackets logged\n", fp->f_log_ok);
PRINTF("%lu\tlog failures\n", fp->f_log_fail);
PRINTF("%lu\tred-black no memory\n", fp->f_rb_no_mem);
PRINTF("%lu\tred-black node maximum\n", fp->f_rb_node_max);
PRINTF("%lu\tICMP replies sent\n", fp->f_st[0].fr_ret);
PRINTF("%lu\tTCP RSTs sent\n", fp->f_st[1].fr_ret);
PRINTF("%lu\tfastroute successes\n", fp->f_froute[0]);
PRINTF("%lu\tfastroute failures\n", fp->f_froute[1]);
PRINTF("%u\tIPF Ticks\n", fp->f_ticks);
PRINTF("%x\tPacket log flags set:\n", frf);
if (frf & FF_LOGPASS)
PRINTF("\tpackets passed through filter\n");
if (frf & FF_LOGBLOCK)
PRINTF("\tpackets blocked by filter\n");
if (frf & FF_LOGNOMATCH)
PRINTF("\tpackets not matched by filter\n");
if (!frf)
PRINTF("\tnone\n");
}
/*
* Print out a list of rules from the kernel, starting at the one passed.
*/
static int
printlivelist(fiop, out, set, fp, group, comment)
struct friostat *fiop;
int out, set;
frentry_t *fp;
char *group, *comment;
{
struct frentry fb;
ipfruleiter_t rule;
frentry_t zero;
ipfobj_t obj;
void *buf;
size_t bufsiz;
int rules;
int num;
rules = 0;
rule.iri_inout = out;
rule.iri_active = set;
rule.iri_rule = &fb;
rule.iri_nrules = 1;
if (group != NULL)
strncpy(rule.iri_group, group, FR_GROUPLEN);
else
rule.iri_group[0] = '\0';
bzero((char *)&zero, sizeof(zero));
bzero((char *)&obj, sizeof(obj));
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_type = IPFOBJ_IPFITER;
obj.ipfo_size = sizeof(rule);
obj.ipfo_ptr = &rule;
/*
* The API does not know how much we need for filter data. Assume
* 10K is large enough. XXX: The code silently fails elsewhere on
* allocation, we do the same here.
*/
if ((buf = malloc(bufsiz = sizeof(*fp) + 10240)) == NULL)
return 0;
while (rule.iri_rule != NULL) {
memset(buf, 0xff, bufsiz);
fp = buf;
rule.iri_rule = fp;
if (ioctl(ipf_fd, SIOCIPFITER, &obj) == -1) {
ipferror(ipf_fd, "ioctl(SIOCIPFITER)");
num = IPFGENITER_IPF;
(void) ioctl(ipf_fd,SIOCIPFDELTOK, &num);
return rules;
}
if (bcmp(fp, &zero, sizeof(zero)) == 0)
break;
if (rule.iri_rule == NULL)
break;
#ifdef USE_INET6
if (use_inet6 != 0) {
if (fp->fr_family != 0 && fp->fr_family != AF_INET6)
continue;
} else
#endif
{
if (fp->fr_family != 0 && fp->fr_family != AF_INET)
continue;
}
if (fp->fr_data != NULL) {
fp->fr_data = calloc(1, fp->fr_dsize);
if (fp->fr_data != NULL) {
memcpy(fp->fr_data, (char *)fp + fp->fr_size,
fp->fr_dsize);
}
}
rules++;
if (opts & (OPT_HITS|OPT_DEBUG))
#ifdef USE_QUAD_T
PRINTF("%llu ", (unsigned long long) fp->fr_hits);
#else
PRINTF("%lu ", fp->fr_hits);
#endif
if (opts & (OPT_ACCNT|OPT_DEBUG))
#ifdef USE_QUAD_T
PRINTF("%llu ", (unsigned long long) fp->fr_bytes);
#else
PRINTF("%lu ", fp->fr_bytes);
#endif
if (opts & OPT_SHOWLINENO)
PRINTF("@%d ", rules);
if (fp->fr_die != 0)
fp->fr_die -= fiop->f_ticks;
printfr(fp, ioctl);
if (opts & OPT_DEBUG) {
binprint(fp, fp->fr_size);
if (fp->fr_data != NULL && fp->fr_dsize > 0)
binprint(fp->fr_data, fp->fr_dsize);
}
if (fp->fr_type == FR_T_CALLFUNC) {
rules += printlivelist(fiop, out, set, fp->fr_data,
group, "# callfunc: ");
}
}
num = IPFGENITER_IPF;
(void) ioctl(ipf_fd,SIOCIPFDELTOK, &num);
return rules;
}
static void printdeadlist(fiop, out, set, fp, group, comment)
friostat_t *fiop;
int out, set;
frentry_t *fp;
char *group, *comment;
{
frgroup_t *grtop, *grtail, *g;
struct frentry fb;
char *data;
u_32_t type;
int n;
fb.fr_next = fp;
n = 0;
grtop = NULL;
grtail = NULL;
for (n = 1; fp; fp = fb.fr_next, n++) {
if (kmemcpy((char *)&fb, (u_long)fb.fr_next,
fb.fr_size) == -1) {
perror("kmemcpy");
return;
}
fp = &fb;
if (use_inet6 != 0) {
if (fp->fr_family != 0 && fp->fr_family != 6)
continue;
} else {
if (fp->fr_family != 0 && fp->fr_family != 4)
continue;
}
data = NULL;
type = fb.fr_type & ~FR_T_BUILTIN;
if (type == FR_T_IPF || type == FR_T_BPFOPC) {
if (fb.fr_dsize) {
data = malloc(fb.fr_dsize);
if (kmemcpy(data, (u_long)fb.fr_data,
fb.fr_dsize) == -1) {
perror("kmemcpy");
return;
}
fb.fr_data = data;
}
}
if (opts & OPT_HITS)
#ifdef USE_QUAD_T
PRINTF("%llu ", (unsigned long long) fb.fr_hits);
#else
PRINTF("%lu ", fb.fr_hits);
#endif
if (opts & OPT_ACCNT)
#ifdef USE_QUAD_T
PRINTF("%llu ", (unsigned long long) fb.fr_bytes);
#else
PRINTF("%lu ", fb.fr_bytes);
#endif
if (opts & OPT_SHOWLINENO)
PRINTF("@%d ", n);
printfr(fp, ioctl);
if (opts & OPT_DEBUG) {
binprint(fp, fp->fr_size);
if (fb.fr_data != NULL && fb.fr_dsize > 0)
binprint(fb.fr_data, fb.fr_dsize);
}
if (data != NULL)
free(data);
if (fb.fr_grhead != -1) {
g = calloc(1, sizeof(*g));
if (g != NULL) {
strncpy(g->fg_name, fb.fr_names + fb.fr_grhead,
FR_GROUPLEN);
if (grtop == NULL) {
grtop = g;
grtail = g;
} else {
grtail->fg_next = g;
grtail = g;
}
}
}
if (type == FR_T_CALLFUNC) {
printdeadlist(fiop, out, set, fb.fr_data, group,
"# callfunc: ");
}
}
while ((g = grtop) != NULL) {
printdeadlist(fiop, out, set, NULL, g->fg_name, comment);
grtop = g->fg_next;
free(g);
}
}
/*
* print out all of the asked for rule sets, using the stats struct as
* the base from which to get the pointers.
*/
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) {
if (opts & OPT_OUTQUE) {
i = F_ACOUT;
fp = (struct frentry *)fiop->f_acctout[set];
} else if (opts & OPT_INQUE) {
i = F_ACIN;
fp = (struct frentry *)fiop->f_acctin[set];
} else {
FPRINTF(stderr, "No -i or -o given with -a\n");
return;
}
} else {
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_DEBUG)
FPRINTF(stderr, "showlist:opts %#x i %d\n", opts, i);
if (opts & OPT_DEBUG)
PRINTF("fp %p set %d\n", fp, set);
if (live_kernel == 1) {
int printed;
printed = printlivelist(fiop, i, set, fp, NULL, NULL);
if (printed == 0) {
FPRINTF(stderr, "# empty list for %s%s\n",
(opts & OPT_INACTIVE) ? "inactive " : "",
filters[i]);
}
} else {
if (!fp) {
FPRINTF(stderr, "# empty list for %s%s\n",
(opts & OPT_INACTIVE) ? "inactive " : "",
filters[i]);
} else {
printdeadlist(fiop, i, set, fp, NULL, NULL);
}
}
}
/*
* Display ipfilter stateful filtering information
*/
static void showipstates(ipsp, filter)
ips_stat_t *ipsp;
int *filter;
{
ipstate_t *is;
int i;
/*
* If a list of states hasn't been asked for, only print out stats
*/
if (!(opts & OPT_SHOWLIST)) {
showstatestats(ipsp);
return;
}
if ((state_fields != NULL) && (nohdrfields == 0)) {
for (i = 0; state_fields[i].w_value != 0; i++) {
printfieldhdr(statefields, state_fields + i);
if (state_fields[i + 1].w_value != 0)
printf("\t");
}
printf("\n");
}
/*
* Print out all the state information currently held in the kernel.
*/
for (is = ipsp->iss_list; is != NULL; ) {
ipstate_t ips;
is = fetchstate(is, &ips);
if (is == NULL)
break;
is = ips.is_next;
if ((filter != NULL) &&
(state_matcharray(&ips, filter) == 0)) {
continue;
}
if (state_fields != NULL) {
for (i = 0; state_fields[i].w_value != 0; i++) {
printstatefield(&ips, state_fields[i].w_value);
if (state_fields[i + 1].w_value != 0)
printf("\t");
}
printf("\n");
} else {
printstate(&ips, opts, ipsp->iss_ticks);
}
}
}
static void showstatestats(ipsp)
ips_stat_t *ipsp;
{
int minlen, maxlen, totallen;
ipftable_t table;
u_int *buckets;
ipfobj_t obj;
int i, sz;
/*
* If a list of states hasn't been asked for, only print out stats
*/
sz = sizeof(*buckets) * ipsp->iss_state_size;
buckets = (u_int *)malloc(sz);
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_type = IPFOBJ_GTABLE;
obj.ipfo_size = sizeof(table);
obj.ipfo_ptr = &table;
table.ita_type = IPFTABLE_BUCKETS;
table.ita_table = buckets;
if (live_kernel == 1) {
if (ioctl(state_fd, SIOCGTABL, &obj) != 0) {
free(buckets);
return;
}
} else {
if (kmemcpy((char *)buckets,
(u_long)ipsp->iss_bucketlen, sz)) {
free(buckets);
return;
}
}
PRINTF("%u\tactive state table entries\n",ipsp->iss_active);
PRINTF("%lu\tadd bad\n", ipsp->iss_add_bad);
PRINTF("%lu\tadd duplicate\n", ipsp->iss_add_dup);
PRINTF("%lu\tadd locked\n", ipsp->iss_add_locked);
PRINTF("%lu\tadd oow\n", ipsp->iss_add_oow);
PRINTF("%lu\tbucket full\n", ipsp->iss_bucket_full);
PRINTF("%lu\tcheck bad\n", ipsp->iss_check_bad);
PRINTF("%lu\tcheck miss\n", ipsp->iss_check_miss);
PRINTF("%lu\tcheck nattag\n", ipsp->iss_check_nattag);
PRINTF("%lu\tclone nomem\n", ipsp->iss_clone_nomem);
PRINTF("%lu\tcheck notag\n", ipsp->iss_check_notag);
PRINTF("%lu\tcheck success\n", ipsp->iss_hits);
PRINTF("%lu\tcloned\n", ipsp->iss_cloned);
PRINTF("%lu\texpired\n", ipsp->iss_expire);
PRINTF("%lu\tflush all\n", ipsp->iss_flush_all);
PRINTF("%lu\tflush closing\n", ipsp->iss_flush_closing);
PRINTF("%lu\tflush queue\n", ipsp->iss_flush_queue);
PRINTF("%lu\tflush state\n", ipsp->iss_flush_state);
PRINTF("%lu\tflush timeout\n", ipsp->iss_flush_timeout);
PRINTF("%u\thash buckets in use\n", ipsp->iss_inuse);
PRINTF("%lu\tICMP bad\n", ipsp->iss_icmp_bad);
PRINTF("%lu\tICMP banned\n", ipsp->iss_icmp_banned);
PRINTF("%lu\tICMP errors\n", ipsp->iss_icmp_icmperr);
PRINTF("%lu\tICMP head block\n", ipsp->iss_icmp_headblock);
PRINTF("%lu\tICMP hits\n", ipsp->iss_icmp_hits);
PRINTF("%lu\tICMP not query\n", ipsp->iss_icmp_notquery);
PRINTF("%lu\tICMP short\n", ipsp->iss_icmp_short);
PRINTF("%lu\tICMP too many\n", ipsp->iss_icmp_toomany);
PRINTF("%lu\tICMPv6 errors\n", ipsp->iss_icmp6_icmperr);
PRINTF("%lu\tICMPv6 miss\n", ipsp->iss_icmp6_miss);
PRINTF("%lu\tICMPv6 not info\n", ipsp->iss_icmp6_notinfo);
PRINTF("%lu\tICMPv6 not query\n", ipsp->iss_icmp6_notquery);
PRINTF("%lu\tlog fail\n", ipsp->iss_log_fail);
PRINTF("%lu\tlog ok\n", ipsp->iss_log_ok);
PRINTF("%lu\tlookup interface mismatch\n", ipsp->iss_lookup_badifp);
PRINTF("%lu\tlookup mask mismatch\n", ipsp->iss_miss_mask);
PRINTF("%lu\tlookup port mismatch\n", ipsp->iss_lookup_badport);
PRINTF("%lu\tlookup miss\n", ipsp->iss_lookup_miss);
PRINTF("%lu\tmaximum rule references\n", ipsp->iss_max_ref);
PRINTF("%lu\tmaximum hosts per rule\n", ipsp->iss_max_track);
PRINTF("%lu\tno memory\n", ipsp->iss_nomem);
PRINTF("%lu\tout of window\n", ipsp->iss_oow);
PRINTF("%lu\torphans\n", ipsp->iss_orphan);
PRINTF("%lu\tscan block\n", ipsp->iss_scan_block);
PRINTF("%lu\tstate table maximum reached\n", ipsp->iss_max);
PRINTF("%lu\tTCP closing\n", ipsp->iss_tcp_closing);
PRINTF("%lu\tTCP OOW\n", ipsp->iss_tcp_oow);
PRINTF("%lu\tTCP RST add\n", ipsp->iss_tcp_rstadd);
PRINTF("%lu\tTCP too small\n", ipsp->iss_tcp_toosmall);
PRINTF("%lu\tTCP bad options\n", ipsp->iss_tcp_badopt);
PRINTF("%lu\tTCP removed\n", ipsp->iss_fin);
PRINTF("%lu\tTCP FSM\n", ipsp->iss_tcp_fsm);
PRINTF("%lu\tTCP strict\n", ipsp->iss_tcp_strict);
PRINTF("%lu\tTCP wild\n", ipsp->iss_wild);
PRINTF("%lu\tMicrosoft Windows SACK\n", ipsp->iss_winsack);
PRINTF("State logging %sabled\n", state_logging ? "en" : "dis");
PRINTF("IP states added:\n");
for (i = 0; i < 256; i++) {
if (ipsp->iss_proto[i] != 0) {
struct protoent *proto;
proto = getprotobynumber(i);
PRINTF("%lu", ipsp->iss_proto[i]);
if (proto != NULL)
PRINTF("\t%s\n", proto->p_name);
else
PRINTF("\t%d\n", i);
}
}
PRINTF("\nState table bucket statistics:\n");
PRINTF("%u\tin use\n", ipsp->iss_inuse);
minlen = ipsp->iss_max;
totallen = 0;
maxlen = 0;
for (i = 0; i < ipsp->iss_state_size; i++) {
if (buckets[i] > maxlen)
maxlen = buckets[i];
if (buckets[i] < minlen)
minlen = buckets[i];
totallen += buckets[i];
}
PRINTF("%d\thash efficiency\n",
totallen ? ipsp->iss_inuse * 100 / totallen : 0);
PRINTF("%2.2f%%\tbucket usage\n%u\tminimal length\n",
((float)ipsp->iss_inuse / ipsp->iss_state_size) * 100.0,
minlen);
PRINTF("%u\tmaximal length\n%.3f\taverage length\n",
maxlen,
ipsp->iss_inuse ? (float) totallen/ ipsp->iss_inuse :
0.0);
#define ENTRIES_PER_LINE 5
if (opts & OPT_VERBOSE) {
PRINTF("\nCurrent bucket sizes :\n");
for (i = 0; i < ipsp->iss_state_size; i++) {
if ((i % ENTRIES_PER_LINE) == 0)
PRINTF("\t");
PRINTF("%4d -> %4u", i, buckets[i]);
if ((i % ENTRIES_PER_LINE) ==
(ENTRIES_PER_LINE - 1))
PRINTF("\n");
else
PRINTF(" ");
}
PRINTF("\n");
}
PRINTF("\n");
free(buckets);
if (live_kernel == 1) {
showtqtable_live(state_fd);
} else {
printtqtable(ipsp->iss_tcptab);
}
}
#ifdef STATETOP
static int handle_resize = 0, handle_break = 0;
static void topipstates(saddr, daddr, sport, dport, protocol, ver,
refreshtime, topclosed, filter)
i6addr_t saddr;
i6addr_t daddr;
int sport;
int dport;
int protocol;
int ver;
int refreshtime;
int topclosed;
int *filter;
{
char str1[STSTRSIZE], str2[STSTRSIZE], str3[STSTRSIZE], str4[STSTRSIZE];
int maxtsentries = 0, reverse = 0, sorting = STSORT_DEFAULT;
int i, j, winy, tsentry, maxx, maxy, redraw = 0, ret = 0;
int len, srclen, dstlen, forward = 1, c = 0;
ips_stat_t ipsst, *ipsstp = &ipsst;
int token_type = IPFGENITER_STATE;
statetop_t *tstable = NULL, *tp;
const char *errstr = "";
ipstate_t ips;
ipfobj_t ipfo;
struct timeval selecttimeout;
char hostnm[HOSTNMLEN];
struct protoent *proto;
fd_set readfd;
time_t t;
/* install signal handlers */
signal(SIGINT, sig_break);
signal(SIGQUIT, sig_break);
signal(SIGTERM, sig_break);
signal(SIGWINCH, sig_resize);
/* init ncurses stuff */
initscr();
cbreak();
noecho();
curs_set(0);
timeout(0);
getmaxyx(stdscr, maxy, maxx);
/* init hostname */
gethostname(hostnm, sizeof(hostnm) - 1);
hostnm[sizeof(hostnm) - 1] = '\0';
/* init ipfobj_t stuff */
bzero((caddr_t)&ipfo, sizeof(ipfo));
ipfo.ipfo_rev = IPFILTER_VERSION;
ipfo.ipfo_type = IPFOBJ_STATESTAT;
ipfo.ipfo_size = sizeof(*ipsstp);
ipfo.ipfo_ptr = (void *)ipsstp;
/* repeat until user aborts */
while ( 1 ) {
/* get state table */
bzero((char *)&ipsst, sizeof(ipsst));
if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
errstr = "ioctl(SIOCGETFS)";
ret = -1;
goto out;
}
/* clear the history */
tsentry = -1;
/* reset max str len */
srclen = dstlen = 0;
/* read the state table and store in tstable */
for (; ipsstp->iss_list; ipsstp->iss_list = ips.is_next) {
ipsstp->iss_list = fetchstate(ipsstp->iss_list, &ips);
if (ipsstp->iss_list == NULL)
break;
if (ips.is_v != ver)
continue;
if ((filter != NULL) &&
(state_matcharray(&ips, filter) == 0))
continue;
/* check v4 src/dest addresses */
if (ips.is_v == 4) {
if ((saddr.in4.s_addr != INADDR_ANY &&
saddr.in4.s_addr != ips.is_saddr) ||
(daddr.in4.s_addr != INADDR_ANY &&
daddr.in4.s_addr != ips.is_daddr))
continue;
}
#ifdef USE_INET6
/* check v6 src/dest addresses */
if (ips.is_v == 6) {
if ((IP6_NEQ(&saddr, &in6addr_any) &&
IP6_NEQ(&saddr, &ips.is_src)) ||
(IP6_NEQ(&daddr, &in6addr_any) &&
IP6_NEQ(&daddr, &ips.is_dst)))
continue;
}
#endif
/* check protocol */
if (protocol > 0 && protocol != ips.is_p)
continue;
/* check ports if protocol is TCP or UDP */
if (((ips.is_p == IPPROTO_TCP) ||
(ips.is_p == IPPROTO_UDP)) &&
(((sport > 0) && (htons(sport) != ips.is_sport)) ||
((dport > 0) && (htons(dport) != ips.is_dport))))
continue;
/* show closed TCP sessions ? */
if ((topclosed == 0) && (ips.is_p == IPPROTO_TCP) &&
(ips.is_state[0] >= IPF_TCPS_LAST_ACK) &&
(ips.is_state[1] >= IPF_TCPS_LAST_ACK))
continue;
/*
* if necessary make room for this state
* entry
*/
tsentry++;
if (!maxtsentries || tsentry == maxtsentries) {
maxtsentries += STGROWSIZE;
tstable = realloc(tstable,
maxtsentries * sizeof(statetop_t));
if (tstable == NULL) {
perror("realloc");
exit(-1);
}
}
/* get max src/dest address string length */
len = strlen(getip(ips.is_v, &ips.is_src));
if (srclen < len)
srclen = len;
len = strlen(getip(ips.is_v, &ips.is_dst));
if (dstlen < len)
dstlen = len;
/* 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_v = ips.is_v;
tp->st_state[0] = ips.is_state[0];
tp->st_state[1] = ips.is_state[1];
if (forward) {
tp->st_pkts = ips.is_pkts[0]+ips.is_pkts[1];
tp->st_bytes = ips.is_bytes[0]+ips.is_bytes[1];
} else {
tp->st_pkts = ips.is_pkts[2]+ips.is_pkts[3];
tp->st_bytes = ips.is_bytes[2]+ips.is_bytes[3];
}
tp->st_age = ips.is_die - ipsstp->iss_ticks;
if ((ips.is_p == IPPROTO_TCP) ||
(ips.is_p == IPPROTO_UDP)) {
tp->st_sport = ips.is_sport;
tp->st_dport = ips.is_dport;
}
}
(void) ioctl(state_fd, SIOCIPFDELTOK, &token_type);
/* 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;
case STSORT_SRCIP:
qsort(tstable, tsentry + 1,
sizeof(statetop_t), sort_srcip);
break;
case STSORT_SRCPT:
qsort(tstable, tsentry +1,
sizeof(statetop_t), sort_srcpt);
break;
case STSORT_DSTIP:
qsort(tstable, tsentry + 1,
sizeof(statetop_t), sort_dstip);
break;
case STSORT_DSTPT:
qsort(tstable, tsentry + 1,
sizeof(statetop_t), sort_dstpt);
break;
default:
break;
}
}
/* handle window resizes */
if (handle_resize) {
endwin();
initscr();
cbreak();
noecho();
curs_set(0);
timeout(0);
getmaxyx(stdscr, maxy, maxx);
redraw = 1;
handle_resize = 0;
}
/* stop program? */
if (handle_break)
break;
/* print title */
erase();
attron(A_BOLD);
winy = 0;
move(winy,0);
sprintf(str1, "%s - %s - state top", hostnm, 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(winy, 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", getip(ver, &saddr), sport);
else
sprintf(str1, "%s", getip(ver, &saddr));
if (dport >= 0)
sprintf(str2, "%s,%d", getip(ver, &daddr), dport);
else
sprintf(str2, "%s", getip(ver, &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;
case STSORT_SRCIP:
sprintf(str4, "src ip");
break;
case STSORT_SRCPT:
sprintf(str4, "src port");
break;
case STSORT_DSTIP:
sprintf(str4, "dest ip");
break;
case STSORT_DSTPT:
sprintf(str4, "dest port");
break;
default:
sprintf(str4, "unknown");
break;
}
if (reverse)
strcat(str4, " (reverse)");
winy += 2;
move(winy,0);
printw("Src: %s, Dest: %s, Proto: %s, Sorted by: %s\n\n",
str1, str2, str3, str4);
/*
* For an IPv4 IP address we need at most 15 characters,
* 4 tuples of 3 digits, separated by 3 dots. Enforce this
* length, so the colums do not change positions based
* on the size of the IP address. This length makes the
* output fit in a 80 column terminal.
* We are lacking a good solution for IPv6 addresses (that
* can be longer that 15 characters), so we do not enforce
* a maximum on the IP field size.
*/
if (srclen < 15)
srclen = 15;
if (dstlen < 15)
dstlen = 15;
/* print column description */
winy += 2;
move(winy,0);
attron(A_BOLD);
printw("%-*s %-*s %3s %4s %7s %9s %9s\n",
srclen + 6, "Source IP", dstlen + 6, "Destination IP",
"ST", "PR", "#pkts", "#bytes", "ttl");
attroff(A_BOLD);
/* print all the entries */
tp = tstable;
if (reverse)
tp += tsentry;
if (tsentry > maxy - 6)
tsentry = maxy - 6;
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",
getip(tp->st_v, &tp->st_src),
ntohs(tp->st_sport));
sprintf(str2, "%s,%hu",
getip(tp->st_v, &tp->st_dst),
ntohs(tp->st_dport));
} else {
sprintf(str1, "%s", getip(tp->st_v,
&tp->st_src));
sprintf(str2, "%s", getip(tp->st_v,
&tp->st_dst));
}
winy++;
move(winy, 0);
printw("%-*s %-*s", srclen + 6, str1, dstlen + 6, str2);
/* print state */
sprintf(str1, "%X/%X", tp->st_state[0],
tp->st_state[1]);
printw(" %3s", str1);
/* print protocol */
proto = getprotobynumber(tp->st_p);
if (proto) {
strncpy(str1, proto->p_name, 4);
str1[4] = '\0';
} else {
sprintf(str1, "%d", tp->st_p);
}
/* just print icmp for IPv6-ICMP */
if (tp->st_p == IPPROTO_ICMPV6)
strcpy(str1, "icmp");
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);
if (refresh() == ERR)
break;
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)) {
c = wgetch(stdscr);
if (c == ERR)
continue;
if (ISALPHA(c) && ISUPPER(c))
c = TOLOWER(c);
if (c == 'l') {
redraw = 1;
} else if (c == 'q') {
break;
} else if (c == 'r') {
reverse = !reverse;
} else if (c == 'b') {
forward = 0;
} else if (c == 'f') {
forward = 1;
} else if (c == 's') {
if (++sorting > STSORT_MAX)
sorting = 0;
}
}
} /* while */
out:
printw("\n");
curs_set(1);
/* nocbreak(); XXX - endwin() should make this redundant */
endwin();
free(tstable);
if (ret != 0)
perror(errstr);
}
#endif
/*
* Show fragment cache information that's held in the kernel.
*/
static void showfrstates(ifsp, ticks)
ipfrstat_t *ifsp;
u_long ticks;
{
struct ipfr *ipfrtab[IPFT_SIZE], ifr;
int i;
/*
* print out the numeric statistics
*/
PRINTF("IP fragment states:\n%lu\tnew\n%lu\texpired\n%lu\thits\n",
ifsp->ifs_new, ifsp->ifs_expire, ifsp->ifs_hits);
PRINTF("%lu\tretrans\n%lu\ttoo short\n",
ifsp->ifs_retrans0, ifsp->ifs_short);
PRINTF("%lu\tno memory\n%lu\talready exist\n",
ifsp->ifs_nomem, ifsp->ifs_exists);
PRINTF("%lu\tinuse\n", ifsp->ifs_inuse);
PRINTF("\n");
if (live_kernel == 0) {
if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_table,
sizeof(ipfrtab)))
return;
}
/*
* Print out the contents (if any) of the fragment cache table.
*/
if (live_kernel == 1) {
do {
if (fetchfrag(ipf_fd, IPFGENITER_FRAG, &ifr) != 0)
break;
if (ifr.ipfr_ifp == NULL)
break;
ifr.ipfr_ttl -= ticks;
printfraginfo("", &ifr);
} while (ifr.ipfr_next != NULL);
} else {
for (i = 0; i < IPFT_SIZE; i++)
while (ipfrtab[i] != NULL) {
if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
sizeof(ifr)) == -1)
break;
printfraginfo("", &ifr);
ipfrtab[i] = ifr.ipfr_next;
}
}
/*
* Print out the contents (if any) of the NAT fragment cache table.
*/
if (live_kernel == 0) {
if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_nattab,
sizeof(ipfrtab)))
return;
}
if (live_kernel == 1) {
do {
if (fetchfrag(nat_fd, IPFGENITER_NATFRAG, &ifr) != 0)
break;
if (ifr.ipfr_ifp == NULL)
break;
ifr.ipfr_ttl -= ticks;
printfraginfo("NAT: ", &ifr);
} while (ifr.ipfr_next != NULL);
} else {
for (i = 0; i < IPFT_SIZE; i++)
while (ipfrtab[i] != NULL) {
if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
sizeof(ifr)) == -1)
break;
printfraginfo("NAT: ", &ifr);
ipfrtab[i] = ifr.ipfr_next;
}
}
}
/*
* Show stats on how auth within IPFilter has been used
*/
static void showauthstates(asp)
ipf_authstat_t *asp;
{
frauthent_t *frap, fra;
ipfgeniter_t auth;
ipfobj_t obj;
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_type = IPFOBJ_GENITER;
obj.ipfo_size = sizeof(auth);
obj.ipfo_ptr = &auth;
auth.igi_type = IPFGENITER_AUTH;
auth.igi_nitems = 1;
auth.igi_data = &fra;
#ifdef USE_QUAD_T
printf("Authorisation hits: %llu\tmisses %llu\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 (live_kernel == 1) {
if (ioctl(auth_fd, SIOCGENITER, &obj))
break;
} else {
if (kmemcpy((char *)&fra, (u_long)frap,
sizeof(fra)) == -1)
break;
}
printf("age %ld\t", fra.fae_age);
printfr(&fra.fae_fr, ioctl);
frap = fra.fae_next;
}
}
/*
* Display groups used for each of filter rules, accounting rules and
* authentication, separately.
*/
static void showgroups(fiop)
struct friostat *fiop;
{
static char *gnames[3] = { "Filter", "Accounting", "Authentication" };
static int gnums[3] = { IPL_LOGIPF, IPL_LOGCOUNT, IPL_LOGAUTH };
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[gnums[i]][on]; fp != NULL;
fp = grp.fg_next)
if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
break;
else
printf("%s\n", grp.fg_name);
printf("%s groups (inactive):\n", gnames[i]);
for (fp = fiop->f_groups[gnums[i]][off]; fp != NULL;
fp = grp.fg_next)
if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
break;
else
printf("%s\n", grp.fg_name);
}
}
static void parse_ipportstr(argument, ip, port)
const char *argument;
i6addr_t *ip;
int *port;
{
char *s, *comma;
int ok = 0;
/* make working copy of argument, Theoretically you must be able
* to write to optarg, but that seems very ugly to me....
*/
s = strdup(argument);
if (s == NULL)
return;
/* get port */
if ((comma = strchr(s, ',')) != NULL) {
if (!strcasecmp(comma + 1, "any")) {
*port = -1;
} else if (!sscanf(comma + 1, "%d", port) ||
(*port < 0) || (*port > 65535)) {
fprintf(stderr, "Invalid port specification in %s\n",
argument);
free(s);
exit(-2);
}
*comma = '\0';
}
/* get ip address */
if (!strcasecmp(s, "any")) {
ip->in4.s_addr = INADDR_ANY;
ok = 1;
#ifdef USE_INET6
ip->in6 = in6addr_any;
} else if (use_inet6 && inet_pton(AF_INET6, s, &ip->in6)) {
ok = 1;
#endif
} else if (inet_aton(s, &ip->in4))
ok = 1;
if (ok == 0) {
fprintf(stderr, "Invalid IP address: %s\n", s);
free(s);
exit(-2);
}
/* free allocated memory */
free(s);
}
#ifdef STATETOP
static void sig_resize(s)
int s;
{
handle_resize = 1;
}
static void sig_break(s)
int s;
{
handle_break = 1;
}
static char *getip(v, addr)
int v;
i6addr_t *addr;
{
#ifdef USE_INET6
static char hostbuf[MAXHOSTNAMELEN+1];
#endif
if (v == 4)
return inet_ntoa(addr->in4);
#ifdef USE_INET6
(void) inet_ntop(AF_INET6, &addr->in6, hostbuf, sizeof(hostbuf) - 1);
hostbuf[MAXHOSTNAMELEN] = '\0';
return hostbuf;
#else
return "IPv6";
#endif
}
static char *ttl_to_string(ttl)
long int ttl;
{
static char ttlbuf[STSTRSIZE];
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;
}
static int sort_srcip(a, b)
const void *a;
const void *b;
{
register const statetop_t *ap = a;
register const statetop_t *bp = b;
#ifdef USE_INET6
if (use_inet6) {
if (IP6_EQ(&ap->st_src, &bp->st_src))
return 0;
else if (IP6_GT(&ap->st_src, &bp->st_src))
return 1;
} else
#endif
{
if (ntohl(ap->st_src.in4.s_addr) ==
ntohl(bp->st_src.in4.s_addr))
return 0;
else if (ntohl(ap->st_src.in4.s_addr) >
ntohl(bp->st_src.in4.s_addr))
return 1;
}
return -1;
}
static int sort_srcpt(a, b)
const void *a;
const void *b;
{
register const statetop_t *ap = a;
register const statetop_t *bp = b;
if (htons(ap->st_sport) == htons(bp->st_sport))
return 0;
else if (htons(ap->st_sport) > htons(bp->st_sport))
return 1;
return -1;
}
static int sort_dstip(a, b)
const void *a;
const void *b;
{
register const statetop_t *ap = a;
register const statetop_t *bp = b;
#ifdef USE_INET6
if (use_inet6) {
if (IP6_EQ(&ap->st_dst, &bp->st_dst))
return 0;
else if (IP6_GT(&ap->st_dst, &bp->st_dst))
return 1;
} else
#endif
{
if (ntohl(ap->st_dst.in4.s_addr) ==
ntohl(bp->st_dst.in4.s_addr))
return 0;
else if (ntohl(ap->st_dst.in4.s_addr) >
ntohl(bp->st_dst.in4.s_addr))
return 1;
}
return -1;
}
static int sort_dstpt(a, b)
const void *a;
const void *b;
{
register const statetop_t *ap = a;
register const statetop_t *bp = b;
if (htons(ap->st_dport) == htons(bp->st_dport))
return 0;
else if (htons(ap->st_dport) > htons(bp->st_dport))
return 1;
return -1;
}
#endif
ipstate_t *fetchstate(src, dst)
ipstate_t *src, *dst;
{
if (live_kernel == 1) {
ipfgeniter_t state;
ipfobj_t obj;
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_type = IPFOBJ_GENITER;
obj.ipfo_size = sizeof(state);
obj.ipfo_ptr = &state;
state.igi_type = IPFGENITER_STATE;
state.igi_nitems = 1;
state.igi_data = dst;
if (ioctl(state_fd, SIOCGENITER, &obj) != 0)
return NULL;
if (dst->is_next == NULL) {
int n = IPFGENITER_STATE;
(void) ioctl(ipf_fd,SIOCIPFDELTOK, &n);
}
} else {
if (kmemcpy((char *)dst, (u_long)src, sizeof(*dst)))
return NULL;
}
return dst;
}
static int fetchfrag(fd, type, frp)
int fd, type;
ipfr_t *frp;
{
ipfgeniter_t frag;
ipfobj_t obj;
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_type = IPFOBJ_GENITER;
obj.ipfo_size = sizeof(frag);
obj.ipfo_ptr = &frag;
frag.igi_type = type;
frag.igi_nitems = 1;
frag.igi_data = frp;
if (ioctl(fd, SIOCGENITER, &obj))
return EFAULT;
return 0;
}
static int state_matcharray(stp, array)
ipstate_t *stp;
int *array;
{
int i, n, *x, rv, p;
ipfexp_t *e;
rv = 0;
for (n = array[0], x = array + 1; n > 0; x += e->ipfe_size) {
e = (ipfexp_t *)x;
if (e->ipfe_cmd == IPF_EXP_END)
break;
n -= e->ipfe_size;
rv = 0;
/*
* The upper 16 bits currently store the protocol value.
* This is currently used with TCP and UDP port compares and
* allows "tcp.port = 80" without requiring an explicit
" "ip.pr = tcp" first.
*/
p = e->ipfe_cmd >> 16;
if ((p != 0) && (p != stp->is_p))
break;
switch (e->ipfe_cmd)
{
case IPF_EXP_IP_PR :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_p == e->ipfe_arg0[i]);
}
break;
case IPF_EXP_IP_SRCADDR :
if (stp->is_v != 4)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= ((stp->is_saddr &
e->ipfe_arg0[i * 2 + 1]) ==
e->ipfe_arg0[i * 2]);
}
break;
case IPF_EXP_IP_DSTADDR :
if (stp->is_v != 4)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= ((stp->is_daddr &
e->ipfe_arg0[i * 2 + 1]) ==
e->ipfe_arg0[i * 2]);
}
break;
case IPF_EXP_IP_ADDR :
if (stp->is_v != 4)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= ((stp->is_saddr &
e->ipfe_arg0[i * 2 + 1]) ==
e->ipfe_arg0[i * 2]) ||
((stp->is_daddr &
e->ipfe_arg0[i * 2 + 1]) ==
e->ipfe_arg0[i * 2]);
}
break;
#ifdef USE_INET6
case IPF_EXP_IP6_SRCADDR :
if (stp->is_v != 6)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= IP6_MASKEQ(&stp->is_src,
&e->ipfe_arg0[i * 8 + 4],
&e->ipfe_arg0[i * 8]);
}
break;
case IPF_EXP_IP6_DSTADDR :
if (stp->is_v != 6)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= IP6_MASKEQ(&stp->is_dst,
&e->ipfe_arg0[i * 8 + 4],
&e->ipfe_arg0[i * 8]);
}
break;
case IPF_EXP_IP6_ADDR :
if (stp->is_v != 6)
break;
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= IP6_MASKEQ(&stp->is_src,
&e->ipfe_arg0[i * 8 + 4],
&e->ipfe_arg0[i * 8]) ||
IP6_MASKEQ(&stp->is_dst,
&e->ipfe_arg0[i * 8 + 4],
&e->ipfe_arg0[i * 8]);
}
break;
#endif
case IPF_EXP_UDP_PORT :
case IPF_EXP_TCP_PORT :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_sport == e->ipfe_arg0[i]) ||
(stp->is_dport == e->ipfe_arg0[i]);
}
break;
case IPF_EXP_UDP_SPORT :
case IPF_EXP_TCP_SPORT :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_sport == e->ipfe_arg0[i]);
}
break;
case IPF_EXP_UDP_DPORT :
case IPF_EXP_TCP_DPORT :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_dport == e->ipfe_arg0[i]);
}
break;
case IPF_EXP_IDLE_GT :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_die < e->ipfe_arg0[i]);
}
break;
case IPF_EXP_TCP_STATE :
for (i = 0; !rv && i < e->ipfe_narg; i++) {
rv |= (stp->is_state[0] == e->ipfe_arg0[i]) ||
(stp->is_state[1] == e->ipfe_arg0[i]);
}
break;
}
rv ^= e->ipfe_not;
if (rv == 0)
break;
}
return rv;
}
static void showtqtable_live(fd)
int fd;
{
ipftq_t table[IPF_TCP_NSTATES];
ipfobj_t obj;
bzero((char *)&obj, sizeof(obj));
obj.ipfo_rev = IPFILTER_VERSION;
obj.ipfo_size = sizeof(table);
obj.ipfo_ptr = (void *)table;
obj.ipfo_type = IPFOBJ_STATETQTAB;
if (ioctl(fd, SIOCGTQTAB, &obj) == 0) {
printtqtable(table);
}
}