libnl  3.6.0
rule.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
4  */
5 
6 /**
7  * @ingroup cli
8  * @defgroup cli_rule Routing Rules
9  *
10  * @{
11  */
12 
13 #include <netlink/cli/utils.h>
14 #include <netlink/cli/rule.h>
15 
16 struct rtnl_rule *nl_cli_rule_alloc(void)
17 {
18  struct rtnl_rule *rule;
19 
20  rule = rtnl_rule_alloc();
21  if (!rule)
22  nl_cli_fatal(ENOMEM, "Unable to allocate rule object");
23 
24  return rule;
25 }
26 
27 struct nl_cache *nl_cli_rule_alloc_cache(struct nl_sock *sk)
28 {
29  struct nl_cache *cache;
30  int err;
31 
32  if ((err = rtnl_rule_alloc_cache(sk, AF_UNSPEC, &cache)) < 0)
33  nl_cli_fatal(err, "Unable to allocate routing rule cache: %s\n",
34  nl_geterror(err));
35 
36  nl_cache_mngt_provide(cache);
37 
38  return cache;
39 }
40 
41 void nl_cli_rule_parse_family(struct rtnl_rule *rule, char *arg)
42 {
43  int family;
44 
45  if ((family = nl_str2af(arg)) != AF_UNSPEC)
46  rtnl_rule_set_family(rule, family);
47 }
48 
49 /** @} */
void nl_cache_mngt_provide(struct nl_cache *cache)
Provide a cache for global use.
Definition: cache_mngt.c:326
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition: utils.c:71
int rtnl_rule_alloc_cache(struct nl_sock *sock, int family, struct nl_cache **result)
Build a rule cache including all rules currently configured in the kernel.
Definition: rule.c:399