]>
Commit | Line | Data |
---|---|---|
5c302d51 PM |
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 | */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <string.h> | |
15 | #include <linux/if_vlan.h> | |
16 | ||
17 | #include "rt_names.h" | |
18 | #include "utils.h" | |
19 | #include "ip_common.h" | |
20 | ||
561e650e | 21 | static void print_explain(FILE *f) |
5c302d51 | 22 | { |
561e650e | 23 | fprintf(f, |
8b471354 | 24 | "Usage: ... vlan id VLANID\n" |
8589eb4e MC |
25 | " [ protocol VLANPROTO ]\n" |
26 | " [ reorder_hdr { on | off } ]\n" | |
27 | " [ gvrp { on | off } ]\n" | |
28 | " [ mvrp { on | off } ]\n" | |
29 | " [ loose_binding { on | off } ]\n" | |
30 | " [ bridge_binding { on | off } ]\n" | |
31 | " [ ingress-qos-map QOS-MAP ]\n" | |
32 | " [ egress-qos-map QOS-MAP ]\n" | |
5c302d51 PM |
33 | "\n" |
34 | "VLANID := 0-4095\n" | |
6754e1d9 | 35 | "VLANPROTO: [ 802.1Q | 802.1ad ]\n" |
5c302d51 PM |
36 | "QOS-MAP := [ QOS-MAP ] QOS-MAPPING\n" |
37 | "QOS-MAPPING := FROM:TO\n" | |
38 | ); | |
39 | } | |
40 | ||
561e650e | 41 | static void explain(void) |
42 | { | |
43 | print_explain(stderr); | |
44 | } | |
45 | ||
14645ec2 | 46 | static int on_off(const char *msg, const char *arg) |
5c302d51 | 47 | { |
14645ec2 | 48 | fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\", not \"%s\"\n", msg, arg); |
5c302d51 PM |
49 | return -1; |
50 | } | |
51 | ||
52 | static int vlan_parse_qos_map(int *argcp, char ***argvp, struct nlmsghdr *n, | |
53 | int attrtype) | |
54 | { | |
55 | int argc = *argcp; | |
56 | char **argv = *argvp; | |
57 | struct ifla_vlan_qos_mapping m; | |
58 | struct rtattr *tail; | |
59 | ||
c14f9d92 | 60 | tail = addattr_nest(n, 1024, attrtype); |
5c302d51 PM |
61 | |
62 | while (argc > 0) { | |
63 | char *colon = strchr(*argv, ':'); | |
64 | ||
65 | if (!colon) | |
66 | break; | |
67 | *colon = '\0'; | |
68 | ||
69 | if (get_u32(&m.from, *argv, 0)) | |
70 | return 1; | |
71 | if (get_u32(&m.to, colon + 1, 0)) | |
72 | return 1; | |
73 | argc--, argv++; | |
74 | ||
75 | addattr_l(n, 1024, IFLA_VLAN_QOS_MAPPING, &m, sizeof(m)); | |
76 | } | |
77 | ||
c14f9d92 | 78 | addattr_nest_end(n, tail); |
5c302d51 PM |
79 | |
80 | *argcp = argc; | |
81 | *argvp = argv; | |
82 | return 0; | |
83 | } | |
84 | ||
85 | static int vlan_parse_opt(struct link_util *lu, int argc, char **argv, | |
86 | struct nlmsghdr *n) | |
87 | { | |
88 | struct ifla_vlan_flags flags = { 0 }; | |
8fd8f6ed | 89 | __u16 id, proto; |
5c302d51 PM |
90 | |
91 | while (argc > 0) { | |
8fd8f6ed PM |
92 | if (matches(*argv, "protocol") == 0) { |
93 | NEXT_ARG(); | |
94 | if (ll_proto_a2n(&proto, *argv)) | |
95 | invarg("protocol is invalid", *argv); | |
96 | addattr_l(n, 1024, IFLA_VLAN_PROTOCOL, &proto, 2); | |
97 | } else if (matches(*argv, "id") == 0) { | |
5c302d51 PM |
98 | NEXT_ARG(); |
99 | if (get_u16(&id, *argv, 0)) | |
100 | invarg("id is invalid", *argv); | |
101 | addattr_l(n, 1024, IFLA_VLAN_ID, &id, 2); | |
102 | } else if (matches(*argv, "reorder_hdr") == 0) { | |
103 | NEXT_ARG(); | |
104 | flags.mask |= VLAN_FLAG_REORDER_HDR; | |
105 | if (strcmp(*argv, "on") == 0) | |
106 | flags.flags |= VLAN_FLAG_REORDER_HDR; | |
107 | else if (strcmp(*argv, "off") == 0) | |
108 | flags.flags &= ~VLAN_FLAG_REORDER_HDR; | |
109 | else | |
14645ec2 | 110 | return on_off("reorder_hdr", *argv); |
47420640 PM |
111 | } else if (matches(*argv, "gvrp") == 0) { |
112 | NEXT_ARG(); | |
113 | flags.mask |= VLAN_FLAG_GVRP; | |
114 | if (strcmp(*argv, "on") == 0) | |
115 | flags.flags |= VLAN_FLAG_GVRP; | |
116 | else if (strcmp(*argv, "off") == 0) | |
117 | flags.flags &= ~VLAN_FLAG_GVRP; | |
118 | else | |
14645ec2 | 119 | return on_off("gvrp", *argv); |
4e9a6860 DW |
120 | } else if (matches(*argv, "mvrp") == 0) { |
121 | NEXT_ARG(); | |
122 | flags.mask |= VLAN_FLAG_MVRP; | |
123 | if (strcmp(*argv, "on") == 0) | |
124 | flags.flags |= VLAN_FLAG_MVRP; | |
125 | else if (strcmp(*argv, "off") == 0) | |
126 | flags.flags &= ~VLAN_FLAG_MVRP; | |
127 | else | |
128 | return on_off("mvrp", *argv); | |
2180b6b5 PM |
129 | } else if (matches(*argv, "loose_binding") == 0) { |
130 | NEXT_ARG(); | |
131 | flags.mask |= VLAN_FLAG_LOOSE_BINDING; | |
132 | if (strcmp(*argv, "on") == 0) | |
133 | flags.flags |= VLAN_FLAG_LOOSE_BINDING; | |
134 | else if (strcmp(*argv, "off") == 0) | |
135 | flags.flags &= ~VLAN_FLAG_LOOSE_BINDING; | |
136 | else | |
14645ec2 | 137 | return on_off("loose_binding", *argv); |
3f2e457a MM |
138 | } else if (matches(*argv, "bridge_binding") == 0) { |
139 | NEXT_ARG(); | |
140 | flags.mask |= VLAN_FLAG_BRIDGE_BINDING; | |
141 | if (strcmp(*argv, "on") == 0) | |
142 | flags.flags |= VLAN_FLAG_BRIDGE_BINDING; | |
143 | else if (strcmp(*argv, "off") == 0) | |
144 | flags.flags &= ~VLAN_FLAG_BRIDGE_BINDING; | |
145 | else | |
146 | return on_off("bridge_binding", *argv); | |
5c302d51 PM |
147 | } else if (matches(*argv, "ingress-qos-map") == 0) { |
148 | NEXT_ARG(); | |
149 | if (vlan_parse_qos_map(&argc, &argv, n, | |
150 | IFLA_VLAN_INGRESS_QOS)) | |
151 | invarg("invalid ingress-qos-map", *argv); | |
152 | continue; | |
153 | } else if (matches(*argv, "egress-qos-map") == 0) { | |
154 | NEXT_ARG(); | |
155 | if (vlan_parse_qos_map(&argc, &argv, n, | |
156 | IFLA_VLAN_EGRESS_QOS)) | |
157 | invarg("invalid egress-qos-map", *argv); | |
158 | continue; | |
159 | } else if (matches(*argv, "help") == 0) { | |
160 | explain(); | |
161 | return -1; | |
162 | } else { | |
14645ec2 | 163 | fprintf(stderr, "vlan: unknown command \"%s\"?\n", *argv); |
5c302d51 PM |
164 | explain(); |
165 | return -1; | |
166 | } | |
167 | argc--, argv++; | |
168 | } | |
169 | ||
170 | if (flags.mask) | |
171 | addattr_l(n, 1024, IFLA_VLAN_FLAGS, &flags, sizeof(flags)); | |
172 | ||
173 | return 0; | |
174 | } | |
175 | ||
43bc20ae JF |
176 | static void vlan_print_map(FILE *f, |
177 | const char *name_json, | |
178 | const char *name_fp, | |
179 | struct rtattr *attr) | |
5c302d51 PM |
180 | { |
181 | struct ifla_vlan_qos_mapping *m; | |
182 | struct rtattr *i; | |
183 | int rem; | |
184 | ||
43bc20ae JF |
185 | open_json_array(PRINT_JSON, name_json); |
186 | print_string(PRINT_FP, NULL, "\n %s { ", name_fp); | |
5c302d51 PM |
187 | |
188 | rem = RTA_PAYLOAD(attr); | |
189 | for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) { | |
190 | m = RTA_DATA(i); | |
43bc20ae JF |
191 | |
192 | if (is_json_context()) { | |
193 | open_json_object(NULL); | |
194 | print_uint(PRINT_JSON, "from", NULL, m->from); | |
195 | print_uint(PRINT_JSON, "to", NULL, m->to); | |
196 | close_json_object(); | |
197 | } else { | |
198 | fprintf(f, "%u:%u ", m->from, m->to); | |
199 | } | |
5c302d51 | 200 | } |
43bc20ae JF |
201 | |
202 | close_json_array(PRINT_JSON, NULL); | |
203 | print_string(PRINT_FP, NULL, "%s ", "}"); | |
5c302d51 PM |
204 | } |
205 | ||
206 | static void vlan_print_flags(FILE *fp, __u32 flags) | |
207 | { | |
43bc20ae JF |
208 | open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<"); |
209 | #define _PF(f) if (flags & VLAN_FLAG_##f) { \ | |
210 | flags &= ~VLAN_FLAG_##f; \ | |
211 | print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); \ | |
212 | } | |
5c302d51 | 213 | _PF(REORDER_HDR); |
47420640 | 214 | _PF(GVRP); |
4e9a6860 | 215 | _PF(MVRP); |
2180b6b5 | 216 | _PF(LOOSE_BINDING); |
3f2e457a | 217 | _PF(BRIDGE_BINDING); |
5c302d51 PM |
218 | #undef _PF |
219 | if (flags) | |
43bc20ae JF |
220 | print_hex(PRINT_ANY, NULL, "%x", flags); |
221 | close_json_array(PRINT_ANY, "> "); | |
5c302d51 PM |
222 | } |
223 | ||
224 | static void vlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
225 | { | |
226 | struct ifla_vlan_flags *flags; | |
56f5daac | 227 | |
8fd8f6ed PM |
228 | SPRINT_BUF(b1); |
229 | ||
5c302d51 PM |
230 | if (!tb) |
231 | return; | |
232 | ||
8fd8f6ed PM |
233 | if (tb[IFLA_VLAN_PROTOCOL] && |
234 | RTA_PAYLOAD(tb[IFLA_VLAN_PROTOCOL]) < sizeof(__u16)) | |
235 | return; | |
5c302d51 PM |
236 | if (!tb[IFLA_VLAN_ID] || |
237 | RTA_PAYLOAD(tb[IFLA_VLAN_ID]) < sizeof(__u16)) | |
238 | return; | |
239 | ||
8fd8f6ed | 240 | if (tb[IFLA_VLAN_PROTOCOL]) |
43bc20ae JF |
241 | print_string(PRINT_ANY, |
242 | "protocol", | |
243 | "protocol %s ", | |
244 | ll_proto_n2a( | |
245 | rta_getattr_u16(tb[IFLA_VLAN_PROTOCOL]), | |
8fd8f6ed PM |
246 | b1, sizeof(b1))); |
247 | else | |
43bc20ae | 248 | print_string(PRINT_ANY, "protocol", "protocol %s ", "802.1q"); |
8fd8f6ed | 249 | |
43bc20ae JF |
250 | print_uint(PRINT_ANY, |
251 | "id", | |
252 | "id %u ", | |
253 | rta_getattr_u16(tb[IFLA_VLAN_ID])); | |
5c302d51 PM |
254 | |
255 | if (tb[IFLA_VLAN_FLAGS]) { | |
256 | if (RTA_PAYLOAD(tb[IFLA_VLAN_FLAGS]) < sizeof(*flags)) | |
257 | return; | |
258 | flags = RTA_DATA(tb[IFLA_VLAN_FLAGS]); | |
259 | vlan_print_flags(f, flags->flags); | |
260 | } | |
261 | if (tb[IFLA_VLAN_INGRESS_QOS]) | |
43bc20ae JF |
262 | vlan_print_map(f, |
263 | "ingress_qos", | |
264 | "ingress-qos-map", | |
265 | tb[IFLA_VLAN_INGRESS_QOS]); | |
5c302d51 | 266 | if (tb[IFLA_VLAN_EGRESS_QOS]) |
43bc20ae JF |
267 | vlan_print_map(f, |
268 | "egress_qos", | |
269 | "egress-qos-map", | |
270 | tb[IFLA_VLAN_EGRESS_QOS]); | |
5c302d51 PM |
271 | } |
272 | ||
561e650e | 273 | static void vlan_print_help(struct link_util *lu, int argc, char **argv, |
43bc20ae | 274 | FILE *f) |
561e650e | 275 | { |
276 | print_explain(f); | |
277 | } | |
278 | ||
5c302d51 PM |
279 | struct link_util vlan_link_util = { |
280 | .id = "vlan", | |
281 | .maxattr = IFLA_VLAN_MAX, | |
282 | .parse_opt = vlan_parse_opt, | |
283 | .print_opt = vlan_print_opt, | |
561e650e | 284 | .print_help = vlan_print_help, |
5c302d51 | 285 | }; |