/*
* Connection Manager
*
- * Copyright (C) 2007-2011 Intel Corporation. All rights reserved.
+ * Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
if (new_entry == NULL)
return -EINVAL;
- ret = connman_add_entry(table, new_entry, chain_head->next, builtin);
+ if (builtin == -1)
+ chain_head = chain_head->next;
+
+ ret = connman_add_entry(table, new_entry, chain_head, builtin);
if (ret < 0)
g_free(new_entry);
return 0;
}
+static int connman_iptables_compare_rule(struct connman_iptables *table,
+ struct ipt_ip *ip, char *chain_name,
+ char *target_name, struct xtables_target *xt_t,
+ struct xtables_match *xt_m,
+ struct xtables_rule_match *xt_rm)
+{
+ struct connman_iptables_entry *entry;
+ GList *found;
+
+ found = find_existing_rule(table, ip, chain_name, target_name,
+ xt_t, xt_m, xt_rm);
+ if (found == NULL)
+ return -EINVAL;
+
+ entry = found->data;
+ if (entry == NULL)
+ return -EINVAL;
+
+ return 0;
+}
+
+
static int connman_iptables_change_policy(struct connman_iptables *table,
char *chain_name, char *policy)
{
static struct option connman_iptables_opts[] = {
{.name = "append", .has_arg = 1, .val = 'A'},
+ {.name = "compare", .has_arg = 1, .val = 'C'},
{.name = "delete", .has_arg = 1, .val = 'D'},
{.name = "flush-chain", .has_arg = 1, .val = 'F'},
{.name = "insert", .has_arg = 1, .val = 'I'},
return xt_m;
}
+static int parse_ip_and_mask(const char *str, struct in_addr *ip, struct in_addr *mask)
+{
+ char **tokens;
+ uint32_t prefixlength;
+ uint32_t tmp;
+ int err;
+
+ tokens = g_strsplit(str, "/", 2);
+ if (tokens == NULL)
+ return -1;
+
+ if (!inet_pton(AF_INET, tokens[0], ip)) {
+ err = -1;
+ goto out;
+ }
+
+ if (tokens[1] != NULL) {
+ prefixlength = strtol(tokens[1], NULL, 10);
+ if (prefixlength > 31) {
+ err = -1;
+ goto out;
+ }
+
+ tmp = ~(0xffffffff >> prefixlength);
+ } else {
+ tmp = 0xffffffff;
+ }
+
+ mask->s_addr = htonl(tmp);
+ ip->s_addr = ip->s_addr & mask->s_addr;
+ err = 0;
+out:
+ g_strfreev(tokens);
+
+ return err;
+}
+
int main(int argc, char *argv[])
{
struct connman_iptables *table;
char *table_name, *chain, *new_chain, *match_name, *target_name;
char *delete_chain, *flush_chain, *policy;
int c, in_len, out_len;
- gboolean dump, invert, delete, insert, delete_rule;
- struct in_addr src, dst;
+ gboolean dump, invert, delete, insert, delete_rule, compare_rule;
xtables_init_all(&connman_iptables_globals, NFPROTO_IPV4);
delete = FALSE;
insert = FALSE;
delete_rule = FALSE;
- table_name = chain = new_chain = match_name = target_name = NULL;
+ compare_rule = FALSE;
+ chain = new_chain = match_name = target_name = NULL;
delete_chain = flush_chain = policy = NULL;
memset(&ip, 0, sizeof(struct ipt_ip));
table = NULL;
/* extension's options will generate false-positives errors */
opterr = 0;
- while ((c = getopt_long(argc, argv, "-A:D:F:I:L::N:P:X:d:i:j:m:o:s:t:",
+ while ((c = getopt_long(argc, argv,
+ "-A:C:D:F:I:L::N:P:X:d:i:j:m:o:s:t:",
connman_iptables_globals.opts, NULL)) != -1) {
switch (c) {
case 'A':
- /* It is either -A, -D or -I at once */
+ /* It is either -A, -C, -D or -I at once */
if (chain)
goto out;
chain = optarg;
break;
+ case 'C':
+ /* It is either -A, -C, -D or -I at once */
+ if (chain)
+ goto out;
+
+ chain = optarg;
+ compare_rule = TRUE;
+ break;
+
case 'D':
- /* It is either -A, -D or -I at once */
+ /* It is either -A, -C, -D or -I at once */
if (chain)
goto out;
break;
case 'I':
- /* It is either -A, -D or -I at once */
+ /* It is either -A, -C, -D or -I at once */
if (chain)
goto out;
break;
case 'd':
- if (!inet_pton(AF_INET, optarg, &dst))
+ if (!parse_ip_and_mask(optarg, &ip.dst, &ip.dmsk))
break;
- ip.dst = dst;
- inet_pton(AF_INET, "255.255.255.255", &ip.dmsk);
-
if (invert)
ip.invflags |= IPT_INV_DSTIP;
+
break;
case 'i':
break;
case 's':
- if (!inet_pton(AF_INET, optarg, &src))
+ if (!parse_ip_and_mask(optarg, &ip.src, &ip.smsk))
break;
- ip.src = src;
- inet_pton(AF_INET, "255.255.255.255", &ip.smsk);
-
if (invert)
ip.invflags |= IPT_INV_SRCIP;
goto commit;
}
+ if (compare_rule == TRUE) {
+ int ret;
+
+ ret = connman_iptables_compare_rule(table, &ip,
+ chain, target_name, xt_t, xt_m, xt_rm);
+
+ if (ret == 0)
+ printf("Rule exists.\n");
+ else
+ printf("Rule does not exist.\n");
+
+ goto out;
+ }
+
if (delete_rule == TRUE) {
printf("Deleting %s to %s (match %s)\n", target_name,
chain, match_name);
projects / framework / connectivity / connman.git / blobdiff