diff options
Diffstat (limited to 'contrib/ipfilter/tools/ipnat.c')
| -rw-r--r-- | contrib/ipfilter/tools/ipnat.c | 65 |
1 files changed, 62 insertions, 3 deletions
diff --git a/contrib/ipfilter/tools/ipnat.c b/contrib/ipfilter/tools/ipnat.c index 83eb5be..038df6d 100644 --- a/contrib/ipfilter/tools/ipnat.c +++ b/contrib/ipfilter/tools/ipnat.c @@ -65,7 +65,7 @@ extern char *sys_errlist[]; #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 1.24.2.6 2007/05/11 11:16:55 darrenr Exp $"; +static const char rcsid[] = "@(#)$Id: ipnat.c,v 1.24.2.11 2007/09/25 08:27:34 darrenr Exp $"; #endif @@ -78,6 +78,7 @@ 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*[])); @@ -357,9 +358,10 @@ int fd, opts, alive; 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\nrules\t%lu\n", - nsp->ns_inuse, nsp->ns_rules); + 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); @@ -376,6 +378,63 @@ int fd, opts, alive; } +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. */ |
