1 /*
2 * src/lib/cls.c CLI Classifier Helpers
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation version 2.1
7 * of the License.
8 *
9 * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
10 */
11
12 /**
13 * @ingroup cli
14 * @defgroup cli_cls Classifiers
15 * @{
16 */
17
18 #include <netlink/cli/utils.h>
19 #include <netlink/cli/cls.h>
20 #include <netlink/route/cls/ematch.h>
21
nl_cli_cls_alloc(void)22 struct rtnl_cls *nl_cli_cls_alloc(void)
23 {
24 struct rtnl_cls *cls;
25
26 if (!(cls = rtnl_cls_alloc()))
27 nl_cli_fatal(ENOMEM, "Unable to allocate classifier object");
28
29 return cls;
30 }
31
nl_cli_cls_alloc_cache(struct nl_sock * sock,int ifindex,uint32_t parent)32 struct nl_cache *nl_cli_cls_alloc_cache(struct nl_sock *sock, int ifindex,
33 uint32_t parent)
34 {
35 struct nl_cache *cache;
36 int err;
37
38 if ((err = rtnl_cls_alloc_cache(sock, ifindex, parent, &cache)) < 0)
39 nl_cli_fatal(err, "Unable to allocate classifier cache: %s",
40 nl_geterror(err));
41
42 return cache;
43 }
44
nl_cli_cls_parse_proto(struct rtnl_cls * cls,char * arg)45 void nl_cli_cls_parse_proto(struct rtnl_cls *cls, char *arg)
46 {
47 int proto;
48
49 if ((proto = nl_str2ether_proto(arg)) < 0)
50 nl_cli_fatal(proto, "Unknown protocol \"%s\".", arg);
51
52 rtnl_cls_set_protocol(cls, proto);
53 }
54
nl_cli_cls_parse_ematch(struct rtnl_cls * cls,char * arg)55 struct rtnl_ematch_tree *nl_cli_cls_parse_ematch(struct rtnl_cls *cls, char *arg)
56 {
57 struct rtnl_ematch_tree *tree;
58 char *errstr = NULL;
59 int err;
60
61 if ((err = rtnl_ematch_parse_expr(arg, &errstr, &tree)) < 0)
62 nl_cli_fatal(err, "Unable to parse ematch expression: %s",
63 errstr);
64
65 if (errstr)
66 free(errstr);
67
68 return tree;
69 }
70
71 /** @} */
72