src/nl-list-caches.c

   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
  15 static void print_usage(void)
  16 {
  17         fprintf(stderr, "Usage: nl-list-caches\n");
  18         exit(1);
  19 }
  20
  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
  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
 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 }