projects / mirror_iproute2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3f0a7b4c SS |
1 | /* |
| 2 | * iplink_macvtap.c macvtap 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 | ||
| 10 | #include <stdio.h> | |
| 11 | #include <stdlib.h> | |
| 12 | #include <string.h> | |
| 13 | #include <sys/socket.h> | |
| 14 | #include <linux/if_link.h> | |
| 15 | ||
| 16 | #include "rt_names.h" | |
| 17 | #include "utils.h" | |
| 18 | #include "ip_common.h" | |
| 19 | ||
| 20 | static void explain(void) | |
| 21 | { | |
| 22 | fprintf(stderr, | |
| f0612d56 | 23 | "Usage: ... macvtap mode { private | vepa | bridge | passthru }\n" |
| 3f0a7b4c SS |
24 | ); |
| 25 | } | |
| 26 | ||
| 27 | static int mode_arg(void) | |
| 28 | { | |
| 29 | fprintf(stderr, "Error: argument of \"mode\" must be \"private\", " | |
| f0612d56 | 30 | "\"vepa\", \"bridge\" or \"passthru\" \n"); |
| 3f0a7b4c SS |
31 | return -1; |
| 32 | } | |
| 33 | ||
| 34 | static int macvtap_parse_opt(struct link_util *lu, int argc, char **argv, | |
| 35 | struct nlmsghdr *n) | |
| 36 | { | |
| 37 | while (argc > 0) { | |
| 38 | if (matches(*argv, "mode") == 0) { | |
| 39 | __u32 mode = 0; | |
| 40 | NEXT_ARG(); | |
| 41 | ||
| 42 | if (strcmp(*argv, "private") == 0) | |
| 43 | mode = MACVLAN_MODE_PRIVATE; | |
| 44 | else if (strcmp(*argv, "vepa") == 0) | |
| 45 | mode = MACVLAN_MODE_VEPA; | |
| 46 | else if (strcmp(*argv, "bridge") == 0) | |
| 47 | mode = MACVLAN_MODE_BRIDGE; | |
| f0612d56 SS |
48 | else if (strcmp(*argv, "passthru") == 0) |
| 49 | mode = MACVLAN_MODE_PASSTHRU; | |
| 3f0a7b4c SS |
50 | else |
| 51 | return mode_arg(); | |
| 52 | ||
| 53 | addattr32(n, 1024, IFLA_MACVLAN_MODE, mode); | |
| 54 | } else if (matches(*argv, "help") == 0) { | |
| 55 | explain(); | |
| 56 | return -1; | |
| 57 | } else { | |
| 58 | fprintf(stderr, "macvtap: what is \"%s\"?\n", *argv); | |
| 59 | explain(); | |
| 60 | return -1; | |
| 61 | } | |
| 62 | argc--, argv++; | |
| 63 | } | |
| 64 | ||
| 65 | return 0; | |
| 66 | } | |
| 67 | ||
| 68 | static void macvtap_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
| 69 | { | |
| 70 | __u32 mode; | |
| 71 | ||
| 72 | if (!tb) | |
| 73 | return; | |
| 74 | ||
| 75 | if (!tb[IFLA_MACVLAN_MODE] || | |
| 76 | RTA_PAYLOAD(tb[IFLA_MACVLAN_MODE]) < sizeof(__u32)) | |
| 77 | return; | |
| 78 | ||
| ff24746c | 79 | mode = rta_getattr_u32(tb[IFLA_VLAN_ID]); |
| 3f0a7b4c SS |
80 | fprintf(f, " mode %s ", |
| 81 | mode == MACVLAN_MODE_PRIVATE ? "private" | |
| 82 | : mode == MACVLAN_MODE_VEPA ? "vepa" | |
| 83 | : mode == MACVLAN_MODE_BRIDGE ? "bridge" | |
| f0612d56 | 84 | : mode == MACVLAN_MODE_PASSTHRU ? "passthru" |
| 3f0a7b4c SS |
85 | : "unknown"); |
| 86 | } | |
| 87 | ||
| 88 | struct link_util macvtap_link_util = { | |
| 89 | .id = "macvtap", | |
| 90 | .maxattr = IFLA_MACVLAN_MAX, | |
| 91 | .parse_opt = macvtap_parse_opt, | |
| 92 | .print_opt = macvtap_print_opt, | |
| 93 | }; |