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author/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org>2007-04-16 17:55:00 +0000
committer/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org>2007-04-16 17:55:00 +0000
commitad31f852c3454136bdbfeb7f222cb9c175f13c1c (patch)
tree67bbd2dbec77205ccfd2c950b8cbeefe65f2c67e /extensions/libct_proto_udp.c
parent13e6cab49dc2716c3e58eda12eed2fbab24be59b (diff)
initial import of the conntrack daemon to Netfilter SVN
Diffstat (limited to 'extensions/libct_proto_udp.c')
-rw-r--r--extensions/libct_proto_udp.c141
1 files changed, 0 insertions, 141 deletions
diff --git a/extensions/libct_proto_udp.c b/extensions/libct_proto_udp.c
deleted file mode 100644
index 48079e0..0000000
--- a/extensions/libct_proto_udp.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * (C) 2005 by Pablo Neira Ayuso <pablo@eurodev.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-#include <stdio.h>
-#include <getopt.h>
-#include <stdlib.h>
-#include <netinet/in.h> /* For htons */
-#include "conntrack.h"
-#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
-#include <libnetfilter_conntrack/libnetfilter_conntrack_udp.h>
-
-static struct option opts[] = {
- {"orig-port-src", 1, 0, '1'},
- {"orig-port-dst", 1, 0, '2'},
- {"reply-port-src", 1, 0, '3'},
- {"reply-port-dst", 1, 0, '4'},
- {"mask-port-src", 1, 0, '5'},
- {"mask-port-dst", 1, 0, '6'},
- {"tuple-port-src", 1, 0, '7'},
- {"tuple-port-dst", 1, 0, '8'},
- {0, 0, 0, 0}
-};
-
-static void help()
-{
- fprintf(stdout, "--orig-port-src original source port\n");
- fprintf(stdout, "--orig-port-dst original destination port\n");
- fprintf(stdout, "--reply-port-src reply source port\n");
- fprintf(stdout, "--reply-port-dst reply destination port\n");
- fprintf(stdout, "--mask-port-src mask source port\n");
- fprintf(stdout, "--mask-port-dst mask destination port\n");
- fprintf(stdout, "--tuple-port-src expectation tuple src port\n");
- fprintf(stdout, "--tuple-port-src expectation tuple dst port\n");
-}
-
-static int parse_options(char c, char *argv[],
- struct nfct_tuple *orig,
- struct nfct_tuple *reply,
- struct nfct_tuple *exptuple,
- struct nfct_tuple *mask,
- union nfct_protoinfo *proto,
- unsigned int *flags)
-{
- switch(c) {
- case '1':
- if (optarg) {
- orig->l4src.udp.port = htons(atoi(optarg));
- *flags |= UDP_ORIG_SPORT;
- }
- break;
- case '2':
- if (optarg) {
- orig->l4dst.udp.port = htons(atoi(optarg));
- *flags |= UDP_ORIG_DPORT;
- }
- break;
- case '3':
- if (optarg) {
- reply->l4src.udp.port = htons(atoi(optarg));
- *flags |= UDP_REPL_SPORT;
- }
- break;
- case '4':
- if (optarg) {
- reply->l4dst.udp.port = htons(atoi(optarg));
- *flags |= UDP_REPL_DPORT;
- }
- break;
- case '5':
- if (optarg) {
- mask->l4src.udp.port = htons(atoi(optarg));
- *flags |= UDP_MASK_SPORT;
- }
- break;
- case '6':
- if (optarg) {
- mask->l4dst.udp.port = htons(atoi(optarg));
- *flags |= UDP_MASK_DPORT;
- }
- break;
- case '7':
- if (optarg) {
- exptuple->l4src.udp.port = htons(atoi(optarg));
- *flags |= UDP_EXPTUPLE_SPORT;
- }
- break;
- case '8':
- if (optarg) {
- exptuple->l4dst.udp.port = htons(atoi(optarg));
- *flags |= UDP_EXPTUPLE_DPORT;
- }
-
- }
- return 1;
-}
-
-static int final_check(unsigned int flags,
- unsigned int command,
- struct nfct_tuple *orig,
- struct nfct_tuple *reply)
-{
- if ((flags & (UDP_ORIG_SPORT|UDP_ORIG_DPORT))
- && !(flags & (UDP_REPL_SPORT|UDP_REPL_DPORT))) {
- reply->l4src.udp.port = orig->l4dst.udp.port;
- reply->l4dst.udp.port = orig->l4src.udp.port;
- return 1;
- } else if (!(flags & (UDP_ORIG_SPORT|UDP_ORIG_DPORT))
- && (flags & (UDP_REPL_SPORT|UDP_REPL_DPORT))) {
- orig->l4src.udp.port = reply->l4dst.udp.port;
- orig->l4dst.udp.port = reply->l4src.udp.port;
- return 1;
- }
- if ((flags & (UDP_ORIG_SPORT|UDP_ORIG_DPORT))
- && ((flags & (UDP_REPL_SPORT|UDP_REPL_DPORT))))
- return 1;
-
- return 0;
-}
-
-static struct ctproto_handler udp = {
- .name = "udp",
- .protonum = IPPROTO_UDP,
- .parse_opts = parse_options,
- .final_check = final_check,
- .help = help,
- .opts = opts,
- .version = VERSION,
-};
-
-static void __attribute__ ((constructor)) init(void);
-
-static void init(void)
-{
- register_proto(&udp);
-}