1 /* 2 * src/nl-route-get.c Get Route Attributes 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 (at) suug.ch> 10 */ 11 12 #include <netlink/cli/utils.h> 13 #include <netlink/cli/route.h> 14 #include <netlink/cli/link.h> 15 16 static void print_usage(void) 17 { 18 printf("Usage: nl-route-get <addr>\n"); 19 exit(1); 20 } 21 22 static void parse_cb(struct nl_object *obj, void *arg) 23 { 24 //struct rtnl_route *route = (struct rtnl_route *) obj; 25 struct nl_dump_params params = { 26 .dp_fd = stdout, 27 .dp_type = NL_DUMP_DETAILS, 28 }; 29 30 nl_object_dump(obj, ¶ms); 31 } 32 33 static int cb(struct nl_msg *msg, void *arg) 34 { 35 int err; 36 37 if ((err = nl_msg_parse(msg, &parse_cb, NULL)) < 0) 38 nl_cli_fatal(err, "Unable to parse object: %s", nl_geterror(err)); 39 40 return 0; 41 } 42 43 int main(int argc, char *argv[]) 44 { 45 struct nl_sock *sock; 46 struct nl_cache *link_cache, *route_cache; 47 struct nl_addr *dst; 48 int err = 1; 49 50 if (argc < 2 || !strcmp(argv[1], "-h")) 51 print_usage(); 52 53 sock = nl_cli_alloc_socket(); 54 nl_cli_connect(sock, NETLINK_ROUTE); 55 link_cache = nl_cli_link_alloc_cache(sock); 56 route_cache = nl_cli_route_alloc_cache(sock, 0); 57 58 dst = nl_cli_addr_parse(argv[1], AF_INET); 59 60 { 61 struct nl_msg *m; 62 struct rtmsg rmsg = { 63 .rtm_family = nl_addr_get_family(dst), 64 .rtm_dst_len = nl_addr_get_prefixlen(dst), 65 }; 66 67 m = nlmsg_alloc_simple(RTM_GETROUTE, 0); 68 if (!m) 69 nl_cli_fatal(ENOMEM, "out of memory"); 70 if (nlmsg_append(m, &rmsg, sizeof(rmsg), NLMSG_ALIGNTO) < 0) 71 nl_cli_fatal(ENOMEM, "out of memory"); 72 if (nla_put_addr(m, RTA_DST, dst) < 0) 73 nl_cli_fatal(ENOMEM, "out of memory"); 74 75 err = nl_send_auto_complete(sock, m); 76 nlmsg_free(m); 77 if (err < 0) 78 nl_cli_fatal(err, "%s", nl_geterror(err)); 79 80 nl_socket_modify_cb(sock, NL_CB_VALID, NL_CB_CUSTOM, cb, NULL); 81 82 if (nl_recvmsgs_default(sock) < 0) 83 nl_cli_fatal(err, "%s", nl_geterror(err)); 84 } 85 86 //nl_cache_dump(route_cache, ¶ms); 87 88 return 0; 89 } 90
