1 /* iplink_vrf.c VRF device support 2 * 3 * This program is free software; you can redistribute it and/or 4 * modify it under the terms of the GNU General Public License 5 * as published by the Free Software Foundation; either version 6 * 2 of the License, or (at your option) any later version. 7 * 8 * Authors: Shrijeet Mukherjee <shm (at) cumulusnetworks.com> 9 */ 10 11 #include <stdio.h> 12 #include <stdlib.h> 13 #include <string.h> 14 #include <sys/socket.h> 15 #include <linux/if_link.h> 16 17 #include "rt_names.h" 18 #include "utils.h" 19 #include "ip_common.h" 20 21 static void vrf_explain(FILE *f) 22 { 23 fprintf(f, "Usage: ... vrf table TABLEID \n"); 24 } 25 26 static void explain(void) 27 { 28 vrf_explain(stderr); 29 } 30 31 static int vrf_parse_opt(struct link_util *lu, int argc, char **argv, 32 struct nlmsghdr *n) 33 { 34 while (argc > 0) { 35 if (matches(*argv, "table") == 0) { 36 __u32 table; 37 38 NEXT_ARG(); 39 40 if (rtnl_rttable_a2n(&table, *argv)) 41 invarg("invalid table ID\n", *argv); 42 addattr32(n, 1024, IFLA_VRF_TABLE, table); 43 } else if (matches(*argv, "help") == 0) { 44 explain(); 45 return -1; 46 } else { 47 fprintf(stderr, "vrf: unknown option \"%s\"?\n", 48 *argv); 49 explain(); 50 return -1; 51 } 52 argc--, argv++; 53 } 54 55 return 0; 56 } 57 58 static void vrf_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) 59 { 60 if (!tb) 61 return; 62 63 if (tb[IFLA_VRF_TABLE]) 64 fprintf(f, "table %u ", rta_getattr_u32(tb[IFLA_VRF_TABLE])); 65 } 66 67 static void vrf_print_help(struct link_util *lu, int argc, char **argv, 68 FILE *f) 69 { 70 vrf_explain(f); 71 } 72 73 struct link_util vrf_link_util = { 74 .id = "vrf", 75 .maxattr = IFLA_VRF_MAX, 76 .parse_opt = vrf_parse_opt, 77 .print_opt = vrf_print_opt, 78 .print_help = vrf_print_help, 79 }; 80
