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-rw-r--r--contrib/ipfilter/tools/ipnat.c576
1 files changed, 0 insertions, 576 deletions
diff --git a/contrib/ipfilter/tools/ipnat.c b/contrib/ipfilter/tools/ipnat.c
deleted file mode 100644
index 038df6d..0000000
--- a/contrib/ipfilter/tools/ipnat.c
+++ /dev/null
@@ -1,576 +0,0 @@
-/*
- * Copyright (C) 2001-2006 by Darren Reed.
- *
- * See the IPFILTER.LICENCE file for details on licencing.
- *
- * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com)
- */
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/types.h>
-#if !defined(__SVR4) && !defined(__svr4__)
-#include <strings.h>
-#else
-#include <sys/byteorder.h>
-#endif
-#include <sys/time.h>
-#include <sys/param.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stddef.h>
-#include <sys/file.h>
-#define _KERNEL
-#include <sys/uio.h>
-#undef _KERNEL
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#if defined(sun) && (defined(__svr4__) || defined(__SVR4))
-# include <sys/ioccom.h>
-# include <sys/sysmacros.h>
-#endif
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-#include <net/if.h>
-#if __FreeBSD_version >= 300000
-# include <net/if_var.h>
-#endif
-#include <netdb.h>
-#include <arpa/nameser.h>
-#include <arpa/inet.h>
-#include <resolv.h>
-#include <ctype.h>
-#if defined(linux)
-# include <linux/a.out.h>
-#else
-# include <nlist.h>
-#endif
-#include "ipf.h"
-#include "netinet/ipl.h"
-#include "kmem.h"
-
-#ifdef __hpux
-# define nlist nlist64
-#endif
-
-#if defined(sun) && !SOLARIS2
-# define STRERROR(x) sys_errlist[x]
-extern char *sys_errlist[];
-#else
-# define STRERROR(x) strerror(x)
-#endif
-
-#if !defined(lint)
-static const char sccsid[] ="@(#)ipnat.c 1.9 6/5/96 (C) 1993 Darren Reed";
-static const char rcsid[] = "@(#)$Id: ipnat.c,v 1.24.2.11 2007/09/25 08:27:34 darrenr Exp $";
-#endif
-
-
-#if SOLARIS
-#define bzero(a,b) memset(a,0,b)
-#endif
-int use_inet6 = 0;
-char thishost[MAXHOSTNAMELEN];
-
-extern char *optarg;
-
-void dostats __P((int, natstat_t *, int, int));
-void dotable __P((natstat_t *, int, int));
-void flushtable __P((int, int));
-void usage __P((char *));
-int main __P((int, char*[]));
-void showhostmap __P((natstat_t *nsp));
-void natstat_dead __P((natstat_t *, char *));
-void dostats_live __P((int, natstat_t *, int));
-void showhostmap_dead __P((natstat_t *));
-void showhostmap_live __P((int, natstat_t *));
-void dostats_dead __P((natstat_t *, int));
-void showtqtable_live __P((int));
-
-int opts;
-
-void usage(name)
-char *name;
-{
- fprintf(stderr, "Usage: %s [-CFhlnrRsv] [-f filename]\n", name);
- exit(1);
-}
-
-
-int main(argc, argv)
-int argc;
-char *argv[];
-{
- char *file, *core, *kernel;
- natstat_t ns, *nsp;
- int fd, c, mode;
- ipfobj_t obj;
-
- fd = -1;
- opts = 0;
- nsp = &ns;
- file = NULL;
- core = NULL;
- kernel = NULL;
- mode = O_RDWR;
-
- while ((c = getopt(argc, argv, "CdFf:hlM:N:nrRsv")) != -1)
- switch (c)
- {
- case 'C' :
- opts |= OPT_CLEAR;
- break;
- case 'd' :
- opts |= OPT_DEBUG;
- break;
- case 'f' :
- file = optarg;
- break;
- case 'F' :
- opts |= OPT_FLUSH;
- break;
- case 'h' :
- opts |=OPT_HITS;
- break;
- case 'l' :
- opts |= OPT_LIST;
- mode = O_RDONLY;
- break;
- case 'M' :
- core = optarg;
- break;
- case 'N' :
- kernel = optarg;
- break;
- case 'n' :
- opts |= OPT_DONOTHING;
- mode = O_RDONLY;
- break;
- case 'R' :
- opts |= OPT_NORESOLVE;
- break;
- case 'r' :
- opts |= OPT_REMOVE;
- break;
- case 's' :
- opts |= OPT_STAT;
- mode = O_RDONLY;
- break;
- case 'v' :
- opts |= OPT_VERBOSE;
- break;
- default :
- usage(argv[0]);
- }
-
- initparse();
-
- if ((kernel != NULL) || (core != NULL)) {
- (void) setgid(getgid());
- (void) setuid(getuid());
- }
-
- if (!(opts & OPT_DONOTHING)) {
- if (((fd = open(IPNAT_NAME, mode)) == -1) &&
- ((fd = open(IPNAT_NAME, O_RDONLY)) == -1)) {
- (void) fprintf(stderr, "%s: open: %s\n", IPNAT_NAME,
- STRERROR(errno));
- exit(1);
- }
- }
-
- bzero((char *)&ns, sizeof(ns));
-
- if ((opts & OPT_DONOTHING) == 0) {
- if (checkrev(IPL_NAME) == -1) {
- fprintf(stderr, "User/kernel version check failed\n");
- exit(1);
- }
- }
-
- if (!(opts & OPT_DONOTHING) && (kernel == NULL) && (core == NULL)) {
- bzero((char *)&obj, sizeof(obj));
- obj.ipfo_rev = IPFILTER_VERSION;
- obj.ipfo_type = IPFOBJ_NATSTAT;
- obj.ipfo_size = sizeof(*nsp);
- obj.ipfo_ptr = (void *)nsp;
- if (ioctl(fd, SIOCGNATS, &obj) == -1) {
- perror("ioctl(SIOCGNATS)");
- exit(1);
- }
- (void) setgid(getgid());
- (void) setuid(getuid());
- } else if ((kernel != NULL) || (core != NULL)) {
- if (openkmem(kernel, core) == -1)
- exit(1);
-
- natstat_dead(nsp, kernel);
- if (opts & (OPT_LIST|OPT_STAT))
- dostats(fd, nsp, opts, 0);
- exit(0);
- }
-
- if (opts & (OPT_FLUSH|OPT_CLEAR))
- flushtable(fd, opts);
- if (file) {
- ipnat_parsefile(fd, ipnat_addrule, ioctl, file);
- }
- if (opts & (OPT_LIST|OPT_STAT))
- dostats(fd, nsp, opts, 1);
- return 0;
-}
-
-
-/*
- * Read NAT statistic information in using a symbol table and memory file
- * rather than doing ioctl's.
- */
-void natstat_dead(nsp, kernel)
-natstat_t *nsp;
-char *kernel;
-{
- struct nlist nat_nlist[10] = {
- { "nat_table" }, /* 0 */
- { "nat_list" },
- { "maptable" },
- { "ipf_nattable_sz" },
- { "ipf_natrules_sz" },
- { "ipf_rdrrules_sz" }, /* 5 */
- { "ipf_hostmap_sz" },
- { "nat_instances" },
- { "ap_sess_list" },
- { NULL }
- };
- void *tables[2];
-
- if (nlist(kernel, nat_nlist) == -1) {
- fprintf(stderr, "nlist error\n");
- return;
- }
-
- /*
- * Normally the ioctl copies all of these values into the structure
- * for us, before returning it to userland, so here we must copy each
- * one in individually.
- */
- kmemcpy((char *)&tables, nat_nlist[0].n_value, sizeof(tables));
- nsp->ns_table[0] = tables[0];
- nsp->ns_table[1] = tables[1];
-
- kmemcpy((char *)&nsp->ns_list, nat_nlist[1].n_value,
- sizeof(nsp->ns_list));
- kmemcpy((char *)&nsp->ns_maptable, nat_nlist[2].n_value,
- sizeof(nsp->ns_maptable));
- kmemcpy((char *)&nsp->ns_nattab_sz, nat_nlist[3].n_value,
- sizeof(nsp->ns_nattab_sz));
- kmemcpy((char *)&nsp->ns_rultab_sz, nat_nlist[4].n_value,
- sizeof(nsp->ns_rultab_sz));
- kmemcpy((char *)&nsp->ns_rdrtab_sz, nat_nlist[5].n_value,
- sizeof(nsp->ns_rdrtab_sz));
- kmemcpy((char *)&nsp->ns_hostmap_sz, nat_nlist[6].n_value,
- sizeof(nsp->ns_hostmap_sz));
- kmemcpy((char *)&nsp->ns_instances, nat_nlist[7].n_value,
- sizeof(nsp->ns_instances));
- kmemcpy((char *)&nsp->ns_apslist, nat_nlist[8].n_value,
- sizeof(nsp->ns_apslist));
-}
-
-
-/*
- * Issue an ioctl to flush either the NAT rules table or the active mapping
- * table or both.
- */
-void flushtable(fd, opts)
-int fd, opts;
-{
- int n = 0;
-
- if (opts & OPT_FLUSH) {
- n = 0;
- if (!(opts & OPT_DONOTHING) && ioctl(fd, SIOCIPFFL, &n) == -1)
- perror("ioctl(SIOCFLNAT)");
- else
- printf("%d entries flushed from NAT table\n", n);
- }
-
- if (opts & OPT_CLEAR) {
- n = 1;
- if (!(opts & OPT_DONOTHING) && ioctl(fd, SIOCIPFFL, &n) == -1)
- perror("ioctl(SIOCCNATL)");
- else
- printf("%d entries flushed from NAT list\n", n);
- }
-}
-
-
-/*
- * Display NAT statistics.
- */
-void dostats_dead(nsp, opts)
-natstat_t *nsp;
-int opts;
-{
- nat_t *np, nat;
- ipnat_t ipn;
-
- printf("List of active MAP/Redirect filters:\n");
- while (nsp->ns_list) {
- if (kmemcpy((char *)&ipn, (long)nsp->ns_list,
- sizeof(ipn))) {
- perror("kmemcpy");
- break;
- }
- if (opts & OPT_HITS)
- printf("%lu ", ipn.in_hits);
- printnat(&ipn, opts & (OPT_DEBUG|OPT_VERBOSE));
- nsp->ns_list = ipn.in_next;
- }
-
- printf("\nList of active sessions:\n");
-
- for (np = nsp->ns_instances; np; np = nat.nat_next) {
- if (kmemcpy((char *)&nat, (long)np, sizeof(nat)))
- break;
- printactivenat(&nat, opts, 0, nsp->ns_ticks);
- if (nat.nat_aps)
- printaps(nat.nat_aps, opts);
- }
-
- if (opts & OPT_VERBOSE)
- showhostmap_dead(nsp);
-}
-
-
-void dostats(fd, nsp, opts, alive)
-natstat_t *nsp;
-int fd, opts, alive;
-{
- /*
- * Show statistics ?
- */
- if (opts & OPT_STAT) {
- printf("mapped\tin\t%lu\tout\t%lu\n",
- nsp->ns_mapped[0], nsp->ns_mapped[1]);
- printf("added\t%lu\texpired\t%lu\n",
- nsp->ns_added, nsp->ns_expire);
- printf("no memory\t%lu\tbad nat\t%lu\n",
- nsp->ns_memfail, nsp->ns_badnat);
- printf("inuse\t%lu\norphans\t%u\nrules\t%lu\n",
- nsp->ns_inuse, nsp->ns_orphans, nsp->ns_rules);
- printf("wilds\t%u\n", nsp->ns_wilds);
- dotable(nsp, fd, alive);
- if (opts & OPT_VERBOSE)
- printf("table %p list %p\n",
- nsp->ns_table, nsp->ns_list);
- if (alive)
- showtqtable_live(fd);
- }
-
- if (opts & OPT_LIST) {
- if (alive)
- dostats_live(fd, nsp, opts);
- else
- dostats_dead(nsp, opts);
- }
-}
-
-
-void dotable(nsp, fd, alive)
-natstat_t *nsp;
-int fd, alive;
-{
- int sz, i, used, totallen, maxlen, minlen;
- ipftable_t table;
- u_long *buckets;
- ipfobj_t obj;
-
- sz = sizeof(*buckets) * nsp->ns_nattab_sz;
- buckets = (u_long *)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_NATIN;
- table.ita_table = buckets;
-
- if (alive) {
- if (ioctl(fd, SIOCGTABL, &obj) != 0) {
- free(buckets);
- return;
- }
- } else {
- if (kmemcpy((char *)buckets, (u_long)nsp->ns_nattab_sz, sz)) {
- free(buckets);
- return;
- }
- }
-
- totallen = 0;
- maxlen = 0;
- minlen = nsp->ns_inuse;
- used = 0;
-
- for (i = 0; i < nsp->ns_nattab_sz; i++) {
- if (buckets[i] > maxlen)
- maxlen = buckets[i];
- if (buckets[i] < minlen)
- minlen = buckets[i];
- if (buckets[i] != 0)
- used++;
- totallen += buckets[i];
- }
-
- printf("hash efficiency\t%2.2f%%\n",
- totallen ? ((float)used / totallen) * 100.0 : 0.0);
- printf("bucket usage\t%2.2f%%\n",
- ((float)used / nsp->ns_nattab_sz) * 100.0);
- printf("minimal length\t%d\n", minlen);
- printf("maximal length\t%d\n", maxlen);
- printf("average length\t%.3f\n", used ? (float)totallen / used : 0.0);
-}
-
-
-/*
- * Display NAT statistics.
- */
-void dostats_live(fd, nsp, opts)
-natstat_t *nsp;
-int fd, opts;
-{
- ipfgeniter_t iter;
- ipfobj_t obj;
- ipnat_t ipn;
- nat_t nat;
-
- bzero((char *)&obj, sizeof(obj));
- obj.ipfo_rev = IPFILTER_VERSION;
- obj.ipfo_type = IPFOBJ_GENITER;
- obj.ipfo_size = sizeof(iter);
- obj.ipfo_ptr = &iter;
-
- iter.igi_type = IPFGENITER_IPNAT;
- iter.igi_nitems = 1;
- iter.igi_data = &ipn;
-
- /*
- * Show list of NAT rules and NAT sessions ?
- */
- printf("List of active MAP/Redirect filters:\n");
- while (nsp->ns_list) {
- if (ioctl(fd, SIOCGENITER, &obj) == -1)
- break;
- if (opts & OPT_HITS)
- printf("%lu ", ipn.in_hits);
- printnat(&ipn, opts & (OPT_DEBUG|OPT_VERBOSE));
- nsp->ns_list = ipn.in_next;
- }
-
- printf("\nList of active sessions:\n");
-
- iter.igi_type = IPFGENITER_NAT;
- iter.igi_nitems = 1;
- iter.igi_data = &nat;
-
- while (nsp->ns_instances != NULL) {
- if (ioctl(fd, SIOCGENITER, &obj) == -1)
- break;
- printactivenat(&nat, opts, 1, nsp->ns_ticks);
- if (nat.nat_aps)
- printaps(nat.nat_aps, opts);
- nsp->ns_instances = nat.nat_next;
- }
-
- if (opts & OPT_VERBOSE)
- showhostmap_live(fd, nsp);
-}
-
-
-/*
- * Display the active host mapping table.
- */
-void showhostmap_dead(nsp)
-natstat_t *nsp;
-{
- hostmap_t hm, *hmp, **maptable;
- u_int hv;
-
- printf("\nList of active host mappings:\n");
-
- maptable = (hostmap_t **)malloc(sizeof(hostmap_t *) *
- nsp->ns_hostmap_sz);
- if (kmemcpy((char *)maptable, (u_long)nsp->ns_maptable,
- sizeof(hostmap_t *) * nsp->ns_hostmap_sz)) {
- perror("kmemcpy (maptable)");
- return;
- }
-
- for (hv = 0; hv < nsp->ns_hostmap_sz; hv++) {
- hmp = maptable[hv];
-
- while (hmp) {
- if (kmemcpy((char *)&hm, (u_long)hmp, sizeof(hm))) {
- perror("kmemcpy (hostmap)");
- return;
- }
-
- printhostmap(&hm, hv);
- hmp = hm.hm_next;
- }
- }
- free(maptable);
-}
-
-
-/*
- * Display the active host mapping table.
- */
-void showhostmap_live(fd, nsp)
-int fd;
-natstat_t *nsp;
-{
- ipfgeniter_t iter;
- hostmap_t hm;
- ipfobj_t obj;
-
- bzero((char *)&obj, sizeof(obj));
- obj.ipfo_rev = IPFILTER_VERSION;
- obj.ipfo_type = IPFOBJ_GENITER;
- obj.ipfo_size = sizeof(iter);
- obj.ipfo_ptr = &iter;
-
- iter.igi_type = IPFGENITER_HOSTMAP;
- iter.igi_nitems = 1;
- iter.igi_data = &hm;
-
- printf("\nList of active host mappings:\n");
-
- while (nsp->ns_maplist != NULL) {
- if (ioctl(fd, SIOCGENITER, &obj) == -1)
- break;
- printhostmap(&hm, 0);
- nsp->ns_maplist = hm.hm_next;
- }
-}
-
-
-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);
- }
-}
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