Arnd Bergmann | d63a9b2 | 2009-12-26 11:22:57 -0800 | [diff] [blame] | 1 | /* |
| 2 | * iplink_vlan.c VLAN device support |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Authors: Patrick McHardy <kaber@trash.net> |
| 10 | * Arnd Bergmann <arnd@arndb.de> |
| 11 | */ |
| 12 | |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <string.h> |
| 16 | #include <sys/socket.h> |
| 17 | #include <linux/if_link.h> |
| 18 | |
| 19 | #include "rt_names.h" |
| 20 | #include "utils.h" |
| 21 | #include "ip_common.h" |
| 22 | |
| 23 | static void explain(void) |
| 24 | { |
| 25 | fprintf(stderr, |
Sridhar Samudrala | f0612d5 | 2011-03-16 17:01:58 -0700 | [diff] [blame] | 26 | "Usage: ... macvlan mode { private | vepa | bridge | passthru }\n" |
Arnd Bergmann | d63a9b2 | 2009-12-26 11:22:57 -0800 | [diff] [blame] | 27 | ); |
| 28 | } |
| 29 | |
| 30 | static int mode_arg(void) |
| 31 | { |
| 32 | fprintf(stderr, "Error: argument of \"mode\" must be \"private\", " |
Sridhar Samudrala | f0612d5 | 2011-03-16 17:01:58 -0700 | [diff] [blame] | 33 | "\"vepa\", \"bridge\" or \"passthru\" \n"); |
Arnd Bergmann | d63a9b2 | 2009-12-26 11:22:57 -0800 | [diff] [blame] | 34 | return -1; |
| 35 | } |
| 36 | |
| 37 | static int macvlan_parse_opt(struct link_util *lu, int argc, char **argv, |
| 38 | struct nlmsghdr *n) |
| 39 | { |
| 40 | while (argc > 0) { |
| 41 | if (matches(*argv, "mode") == 0) { |
| 42 | __u32 mode = 0; |
| 43 | NEXT_ARG(); |
| 44 | |
| 45 | if (strcmp(*argv, "private") == 0) |
| 46 | mode = MACVLAN_MODE_PRIVATE; |
| 47 | else if (strcmp(*argv, "vepa") == 0) |
| 48 | mode = MACVLAN_MODE_VEPA; |
| 49 | else if (strcmp(*argv, "bridge") == 0) |
| 50 | mode = MACVLAN_MODE_BRIDGE; |
Sridhar Samudrala | f0612d5 | 2011-03-16 17:01:58 -0700 | [diff] [blame] | 51 | else if (strcmp(*argv, "passthru") == 0) |
| 52 | mode = MACVLAN_MODE_PASSTHRU; |
Arnd Bergmann | d63a9b2 | 2009-12-26 11:22:57 -0800 | [diff] [blame] | 53 | else |
| 54 | return mode_arg(); |
| 55 | |
| 56 | addattr32(n, 1024, IFLA_MACVLAN_MODE, mode); |
| 57 | } else if (matches(*argv, "help") == 0) { |
| 58 | explain(); |
| 59 | return -1; |
| 60 | } else { |
| 61 | fprintf(stderr, "macvlan: what is \"%s\"?\n", *argv); |
| 62 | explain(); |
| 63 | return -1; |
| 64 | } |
| 65 | argc--, argv++; |
| 66 | } |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | static void macvlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) |
| 72 | { |
| 73 | __u32 mode; |
| 74 | |
| 75 | if (!tb) |
| 76 | return; |
| 77 | |
| 78 | if (!tb[IFLA_MACVLAN_MODE] || |
| 79 | RTA_PAYLOAD(tb[IFLA_MACVLAN_MODE]) < sizeof(__u32)) |
| 80 | return; |
| 81 | |
| 82 | mode = *(__u32 *)RTA_DATA(tb[IFLA_VLAN_ID]); |
| 83 | fprintf(f, " mode %s ", |
| 84 | mode == MACVLAN_MODE_PRIVATE ? "private" |
| 85 | : mode == MACVLAN_MODE_VEPA ? "vepa" |
| 86 | : mode == MACVLAN_MODE_BRIDGE ? "bridge" |
Sridhar Samudrala | f0612d5 | 2011-03-16 17:01:58 -0700 | [diff] [blame] | 87 | : mode == MACVLAN_MODE_PASSTHRU ? "passthru" |
Arnd Bergmann | d63a9b2 | 2009-12-26 11:22:57 -0800 | [diff] [blame] | 88 | : "unknown"); |
| 89 | } |
| 90 | |
| 91 | struct link_util macvlan_link_util = { |
| 92 | .id = "macvlan", |
| 93 | .maxattr = IFLA_MACVLAN_MAX, |
| 94 | .parse_opt = macvlan_parse_opt, |
| 95 | .print_opt = macvlan_print_opt, |
| 96 | }; |