David Ahern | 15faa0a | 2015-08-13 14:59:11 -0600 | [diff] [blame] | 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@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 table_arg(void) |
| 32 | { |
| 33 | fprintf(stderr,"Error: argument of \"table\" must be 0-32767 and currently unused\n"); |
| 34 | return -1; |
| 35 | } |
| 36 | |
| 37 | static int vrf_parse_opt(struct link_util *lu, int argc, char **argv, |
| 38 | struct nlmsghdr *n) |
| 39 | { |
| 40 | while (argc > 0) { |
| 41 | if (matches(*argv, "table") == 0) { |
| 42 | __u32 table; |
| 43 | |
| 44 | NEXT_ARG(); |
| 45 | |
| 46 | table = atoi(*argv); |
| 47 | if (table > 32767) |
| 48 | return table_arg(); |
| 49 | addattr32(n, 1024, IFLA_VRF_TABLE, table); |
| 50 | } else if (matches(*argv, "help") == 0) { |
| 51 | explain(); |
| 52 | return -1; |
| 53 | } else { |
| 54 | fprintf(stderr, "vrf: unknown option \"%s\"?\n", |
| 55 | *argv); |
| 56 | explain(); |
| 57 | return -1; |
| 58 | } |
| 59 | argc--, argv++; |
| 60 | } |
| 61 | |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | static void vrf_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
| 66 | { |
| 67 | if (!tb) |
| 68 | return; |
| 69 | |
| 70 | if (tb[IFLA_VRF_TABLE]) |
| 71 | fprintf(f, "table %u ", rta_getattr_u32(tb[IFLA_VRF_TABLE])); |
| 72 | } |
| 73 | |
| 74 | static void vrf_print_help(struct link_util *lu, int argc, char **argv, |
| 75 | FILE *f) |
| 76 | { |
| 77 | vrf_explain(f); |
| 78 | } |
| 79 | |
| 80 | struct link_util vrf_link_util = { |
| 81 | .id = "vrf", |
| 82 | .maxattr = IFLA_VRF_MAX, |
| 83 | .parse_opt = vrf_parse_opt, |
| 84 | .print_opt = vrf_print_opt, |
| 85 | .print_help = vrf_print_help, |
| 86 | }; |