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1 /*
2  * nl-list-caches.c	List registered cache types
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) 2003-2009 Thomas Graf <tgraf@suug.ch>
10  */
11 
12 #include <netlink-private/netlink.h>
13 #include <netlink/cli/utils.h>
14 
print_usage(void)15 static void print_usage(void)
16 {
17 	fprintf(stderr, "Usage: nl-list-caches\n");
18 	exit(1);
19 }
20 
id_attr_list(struct nl_object_ops * ops,char * buf,size_t len)21 static char *id_attr_list(struct nl_object_ops *ops, char *buf, size_t len)
22 {
23 	if (ops->oo_attrs2str != NULL)
24 		return ops->oo_attrs2str(ops->oo_id_attrs, buf, len);
25 	else {
26 		memset(buf, 0, len);
27 		return buf;
28 	}
29 }
30 
print(struct nl_cache_ops * ops,void * arg)31 static void print(struct nl_cache_ops *ops, void *arg)
32 {
33 	char buf[64];
34 
35 	printf("%s:\n" \
36 	       "    hdrsize: %d bytes\n" \
37 	       "    protocol: %s\n" \
38 	       "    request-update: %s\n" \
39 	       "    msg-parser: %s\n",
40 	       ops->co_name, ops->co_hdrsize,
41 	       nl_nlfamily2str(ops->co_protocol, buf, sizeof(buf)),
42 	       ops->co_request_update ? "yes" : "no",
43 	       ops->co_msg_parser ? "yes" : "no");
44 
45 	if (ops->co_obj_ops) {
46 		struct nl_object_ops *obj_ops = ops->co_obj_ops;
47 		const char *dump_names[NL_DUMP_MAX+1] = {
48 			"brief",
49 			"detailed",
50 			"stats",
51 		};
52 		int i;
53 
54 		printf("    cacheable object:\n" \
55 		       "        name: %s:\n" \
56 		       "        size: %zu bytes\n" \
57 		       "        constructor: %s\n" \
58 		       "        free-data: %s\n" \
59 		       "        clone: %s\n" \
60 		       "        compare: %s\n" \
61 		       "        id attributes: %s\n" \
62 		       "        dump: ",
63 		       obj_ops->oo_name, obj_ops->oo_size,
64 		       obj_ops->oo_constructor ? "yes" : "no",
65 		       obj_ops->oo_free_data ? "yes" : "no",
66 		       obj_ops->oo_clone ? "yes" : "no",
67 		       obj_ops->oo_compare ? "yes" : "no",
68 		       id_attr_list(obj_ops, buf, sizeof(buf)));
69 
70 		for (i = 0; i <= NL_DUMP_MAX; i++)
71 			if (obj_ops->oo_dump[i])
72 				printf("%s%s",
73 				i == 0 ? "" : ", ",
74 				dump_names[i]);
75 
76 		printf("\n");
77 	}
78 
79 	if (ops->co_genl) {
80 		struct genl_ops *genl_ops = ops->co_genl;
81 
82 		printf("    genl:\n" \
83 		       "        name: %s\n" \
84 		       "        user-hdr: %d\n" \
85 		       "        id: %d\n",
86 		       genl_ops->o_name, genl_ops->o_hdrsize, genl_ops->o_id);
87 
88 		if (genl_ops->o_ncmds) {
89 			int i;
90 
91 			printf("        cmds:\n");
92 
93 			for (i = 0; i < genl_ops->o_ncmds; i++) {
94 				struct genl_cmd *cmd = &genl_ops->o_cmds[i];
95 
96 				printf("            %s:\n"
97 				       "                id: %d\n" \
98 				       "                maxattr: %d\n" \
99 				       "                msg-parser: %s\n" \
100 				       "                attr-policy: %s\n",
101 				       cmd->c_name, cmd->c_id, cmd->c_maxattr,
102 				       cmd->c_msg_parser ? "yes" : "no",
103 				       cmd->c_attr_policy ? "yes" : "no");
104 			}
105 		}
106 	}
107 }
108 
main(int argc,char * argv[])109 int main(int argc, char *argv[])
110 {
111 	if (argc > 1 && !strcasecmp(argv[1], "-h"))
112 		print_usage();
113 
114 	nl_cache_ops_foreach(print, NULL);
115 
116 	return 0;
117 }
118