2 * iplink_bridge_slave.c Bridge slave device support
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.
9 * Authors: Jiri Pirko <jiri@resnulli.us>
13 #include <sys/socket.h>
14 #include <netinet/in.h>
15 #include <linux/if_link.h>
16 #include <linux/if_bridge.h>
20 #include "ip_common.h"
22 static void print_explain(FILE *f
)
25 "Usage: ... bridge_slave [ fdb_flush ]\n"
27 " [ priority PRIO ]\n"
29 " [ guard {on | off} ]\n"
30 " [ hairpin {on | off} ]\n"
31 " [ fastleave {on | off} ]\n"
32 " [ root_block {on | off} ]\n"
33 " [ learning {on | off} ]\n"
34 " [ flood {on | off} ]\n"
35 " [ proxy_arp {on | off} ]\n"
36 " [ proxy_arp_wifi {on | off} ]\n"
37 " [ mcast_router MULTICAST_ROUTER ]\n"
38 " [ mcast_fast_leave {on | off} ]\n"
39 " [ mcast_flood {on | off} ]\n"
40 " [ group_fwd_mask MASK ]\n"
41 " [ neigh_suppress {on | off} ]\n"
42 " [ vlan_tunnel {on | off} ]\n"
43 " [ isolated {on | off} ]\n"
47 static void explain(void)
49 print_explain(stderr
);
52 static const char *port_states
[] = {
53 [BR_STATE_DISABLED
] = "disabled",
54 [BR_STATE_LISTENING
] = "listening",
55 [BR_STATE_LEARNING
] = "learning",
56 [BR_STATE_FORWARDING
] = "forwarding",
57 [BR_STATE_BLOCKING
] = "blocking",
60 static const char *fwd_mask_tbl
[16] = {
66 static void print_portstate(FILE *f
, __u8 state
)
68 if (state
<= BR_STATE_BLOCKING
)
69 print_string(PRINT_ANY
,
74 print_int(PRINT_ANY
, "state_index", "state (%d) ", state
);
77 static void _print_onoff(FILE *f
, char *json_flag
, char *flag
, __u8 val
)
79 if (is_json_context())
80 print_bool(PRINT_JSON
, flag
, NULL
, val
);
82 fprintf(f
, "%s %s ", flag
, val
? "on" : "off");
85 static void _print_timer(FILE *f
, const char *attr
, struct rtattr
*timer
)
89 __jiffies_to_tv(&tv
, rta_getattr_u64(timer
));
90 if (is_json_context()) {
91 json_writer_t
*jw
= get_json_writer();
94 jsonw_printf(jw
, "%i.%.2i",
95 (int)tv
.tv_sec
, (int)tv
.tv_usec
/ 10000);
97 fprintf(f
, "%s %4i.%.2i ", attr
, (int)tv
.tv_sec
,
98 (int)tv
.tv_usec
/ 10000);
102 static void _bitmask2str(__u16 bitmask
, char *dst
, size_t dst_size
,
107 for (i
= 0, len
= 0; bitmask
; i
++, bitmask
>>= 1) {
110 len
+= snprintf(dst
+ len
, dst_size
- len
, "%s,",
113 len
+= snprintf(dst
+ len
, dst_size
- len
, "0x%x,",
119 snprintf(dst
, dst_size
, "0x0");
124 static void bridge_slave_print_opt(struct link_util
*lu
, FILE *f
,
130 if (tb
[IFLA_BRPORT_STATE
])
131 print_portstate(f
, rta_getattr_u8(tb
[IFLA_BRPORT_STATE
]));
133 if (tb
[IFLA_BRPORT_PRIORITY
])
137 rta_getattr_u16(tb
[IFLA_BRPORT_PRIORITY
]));
139 if (tb
[IFLA_BRPORT_COST
])
143 rta_getattr_u32(tb
[IFLA_BRPORT_COST
]));
145 if (tb
[IFLA_BRPORT_MODE
])
146 _print_onoff(f
, "mode", "hairpin",
147 rta_getattr_u8(tb
[IFLA_BRPORT_MODE
]));
149 if (tb
[IFLA_BRPORT_GUARD
])
150 _print_onoff(f
, "guard", "guard",
151 rta_getattr_u8(tb
[IFLA_BRPORT_GUARD
]));
153 if (tb
[IFLA_BRPORT_PROTECT
])
154 _print_onoff(f
, "protect", "root_block",
155 rta_getattr_u8(tb
[IFLA_BRPORT_PROTECT
]));
157 if (tb
[IFLA_BRPORT_FAST_LEAVE
])
158 _print_onoff(f
, "fast_leave", "fastleave",
159 rta_getattr_u8(tb
[IFLA_BRPORT_FAST_LEAVE
]));
161 if (tb
[IFLA_BRPORT_LEARNING
])
162 _print_onoff(f
, "learning", "learning",
163 rta_getattr_u8(tb
[IFLA_BRPORT_LEARNING
]));
165 if (tb
[IFLA_BRPORT_UNICAST_FLOOD
])
166 _print_onoff(f
, "unicast_flood", "flood",
167 rta_getattr_u8(tb
[IFLA_BRPORT_UNICAST_FLOOD
]));
169 if (tb
[IFLA_BRPORT_ID
])
170 print_0xhex(PRINT_ANY
, "id", "port_id 0x%x ",
171 rta_getattr_u16(tb
[IFLA_BRPORT_ID
]));
173 if (tb
[IFLA_BRPORT_NO
])
174 print_0xhex(PRINT_ANY
, "no", "port_no 0x%x ",
175 rta_getattr_u16(tb
[IFLA_BRPORT_NO
]));
177 if (tb
[IFLA_BRPORT_DESIGNATED_PORT
])
178 print_uint(PRINT_ANY
,
180 "designated_port %u ",
181 rta_getattr_u16(tb
[IFLA_BRPORT_DESIGNATED_PORT
]));
183 if (tb
[IFLA_BRPORT_DESIGNATED_COST
])
184 print_uint(PRINT_ANY
,
186 "designated_cost %u ",
187 rta_getattr_u16(tb
[IFLA_BRPORT_DESIGNATED_COST
]));
189 if (tb
[IFLA_BRPORT_BRIDGE_ID
]) {
192 br_dump_bridge_id(RTA_DATA(tb
[IFLA_BRPORT_BRIDGE_ID
]),
193 bridge_id
, sizeof(bridge_id
));
194 print_string(PRINT_ANY
,
196 "designated_bridge %s ",
200 if (tb
[IFLA_BRPORT_ROOT_ID
]) {
203 br_dump_bridge_id(RTA_DATA(tb
[IFLA_BRPORT_ROOT_ID
]),
204 root_id
, sizeof(root_id
));
205 print_string(PRINT_ANY
,
207 "designated_root %s ", root_id
);
210 if (tb
[IFLA_BRPORT_HOLD_TIMER
])
211 _print_timer(f
, "hold_timer", tb
[IFLA_BRPORT_HOLD_TIMER
]);
213 if (tb
[IFLA_BRPORT_MESSAGE_AGE_TIMER
])
214 _print_timer(f
, "message_age_timer",
215 tb
[IFLA_BRPORT_MESSAGE_AGE_TIMER
]);
217 if (tb
[IFLA_BRPORT_FORWARD_DELAY_TIMER
])
218 _print_timer(f
, "forward_delay_timer",
219 tb
[IFLA_BRPORT_FORWARD_DELAY_TIMER
]);
221 if (tb
[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK
])
222 print_uint(PRINT_ANY
,
223 "topology_change_ack",
224 "topology_change_ack %u ",
225 rta_getattr_u8(tb
[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK
]));
227 if (tb
[IFLA_BRPORT_CONFIG_PENDING
])
228 print_uint(PRINT_ANY
,
230 "config_pending %u ",
231 rta_getattr_u8(tb
[IFLA_BRPORT_CONFIG_PENDING
]));
233 if (tb
[IFLA_BRPORT_PROXYARP
])
234 _print_onoff(f
, "proxyarp", "proxy_arp",
235 rta_getattr_u8(tb
[IFLA_BRPORT_PROXYARP
]));
237 if (tb
[IFLA_BRPORT_PROXYARP_WIFI
])
238 _print_onoff(f
, "proxyarp_wifi", "proxy_arp_wifi",
239 rta_getattr_u8(tb
[IFLA_BRPORT_PROXYARP_WIFI
]));
241 if (tb
[IFLA_BRPORT_MULTICAST_ROUTER
])
242 print_uint(PRINT_ANY
,
245 rta_getattr_u8(tb
[IFLA_BRPORT_MULTICAST_ROUTER
]));
247 if (tb
[IFLA_BRPORT_FAST_LEAVE
])
248 // not printing any json here because
249 // we already printed fast_leave before
250 print_string(PRINT_FP
,
252 "mcast_fast_leave %s ",
253 rta_getattr_u8(tb
[IFLA_BRPORT_FAST_LEAVE
]) ? "on" : "off");
255 if (tb
[IFLA_BRPORT_MCAST_FLOOD
])
256 _print_onoff(f
, "mcast_flood", "mcast_flood",
257 rta_getattr_u8(tb
[IFLA_BRPORT_MCAST_FLOOD
]));
259 if (tb
[IFLA_BRPORT_NEIGH_SUPPRESS
])
260 _print_onoff(f
, "neigh_suppress", "neigh_suppress",
261 rta_getattr_u8(tb
[IFLA_BRPORT_NEIGH_SUPPRESS
]));
263 if (tb
[IFLA_BRPORT_GROUP_FWD_MASK
]) {
267 fwd_mask
= rta_getattr_u16(tb
[IFLA_BRPORT_GROUP_FWD_MASK
]);
268 print_0xhex(PRINT_ANY
, "group_fwd_mask",
269 "group_fwd_mask 0x%x ", fwd_mask
);
270 _bitmask2str(fwd_mask
, convbuf
, sizeof(convbuf
), fwd_mask_tbl
);
271 print_string(PRINT_ANY
, "group_fwd_mask_str",
272 "group_fwd_mask_str %s ", convbuf
);
275 if (tb
[IFLA_BRPORT_VLAN_TUNNEL
])
276 _print_onoff(f
, "vlan_tunnel", "vlan_tunnel",
277 rta_getattr_u8(tb
[IFLA_BRPORT_VLAN_TUNNEL
]));
279 if (tb
[IFLA_BRPORT_ISOLATED
])
280 _print_onoff(f
, "isolated", "isolated",
281 rta_getattr_u8(tb
[IFLA_BRPORT_ISOLATED
]));
284 static void bridge_slave_parse_on_off(char *arg_name
, char *arg_val
,
285 struct nlmsghdr
*n
, int type
)
289 if (strcmp(arg_val
, "on") == 0)
291 else if (strcmp(arg_val
, "off") == 0)
294 invarg("should be \"on\" or \"off\"", arg_name
);
296 addattr8(n
, 1024, type
, val
);
299 static int bridge_slave_parse_opt(struct link_util
*lu
, int argc
, char **argv
,
307 if (matches(*argv
, "fdb_flush") == 0) {
308 addattr(n
, 1024, IFLA_BRPORT_FLUSH
);
309 } else if (matches(*argv
, "state") == 0) {
311 if (get_u8(&state
, *argv
, 0))
312 invarg("state is invalid", *argv
);
313 addattr8(n
, 1024, IFLA_BRPORT_STATE
, state
);
314 } else if (matches(*argv
, "priority") == 0) {
316 if (get_u16(&priority
, *argv
, 0))
317 invarg("priority is invalid", *argv
);
318 addattr16(n
, 1024, IFLA_BRPORT_PRIORITY
, priority
);
319 } else if (matches(*argv
, "cost") == 0) {
321 if (get_u32(&cost
, *argv
, 0))
322 invarg("cost is invalid", *argv
);
323 addattr32(n
, 1024, IFLA_BRPORT_COST
, cost
);
324 } else if (matches(*argv
, "hairpin") == 0) {
326 bridge_slave_parse_on_off("hairpin", *argv
, n
,
328 } else if (matches(*argv
, "guard") == 0) {
330 bridge_slave_parse_on_off("guard", *argv
, n
,
332 } else if (matches(*argv
, "root_block") == 0) {
334 bridge_slave_parse_on_off("root_block", *argv
, n
,
335 IFLA_BRPORT_PROTECT
);
336 } else if (matches(*argv
, "fastleave") == 0) {
338 bridge_slave_parse_on_off("fastleave", *argv
, n
,
339 IFLA_BRPORT_FAST_LEAVE
);
340 } else if (matches(*argv
, "learning") == 0) {
342 bridge_slave_parse_on_off("learning", *argv
, n
,
343 IFLA_BRPORT_LEARNING
);
344 } else if (matches(*argv
, "flood") == 0) {
346 bridge_slave_parse_on_off("flood", *argv
, n
,
347 IFLA_BRPORT_UNICAST_FLOOD
);
348 } else if (matches(*argv
, "mcast_flood") == 0) {
350 bridge_slave_parse_on_off("mcast_flood", *argv
, n
,
351 IFLA_BRPORT_MCAST_FLOOD
);
352 } else if (matches(*argv
, "proxy_arp") == 0) {
354 bridge_slave_parse_on_off("proxy_arp", *argv
, n
,
355 IFLA_BRPORT_PROXYARP
);
356 } else if (matches(*argv
, "proxy_arp_wifi") == 0) {
358 bridge_slave_parse_on_off("proxy_arp_wifi", *argv
, n
,
359 IFLA_BRPORT_PROXYARP_WIFI
);
360 } else if (matches(*argv
, "mcast_router") == 0) {
364 if (get_u8(&mcast_router
, *argv
, 0))
365 invarg("invalid mcast_router", *argv
);
366 addattr8(n
, 1024, IFLA_BRPORT_MULTICAST_ROUTER
,
368 } else if (matches(*argv
, "mcast_fast_leave") == 0) {
370 bridge_slave_parse_on_off("mcast_fast_leave", *argv
, n
,
371 IFLA_BRPORT_FAST_LEAVE
);
372 } else if (matches(*argv
, "neigh_suppress") == 0) {
374 bridge_slave_parse_on_off("neigh_suppress", *argv
, n
,
375 IFLA_BRPORT_NEIGH_SUPPRESS
);
376 } else if (matches(*argv
, "group_fwd_mask") == 0) {
380 if (get_u16(&mask
, *argv
, 0))
381 invarg("invalid group_fwd_mask", *argv
);
382 addattr16(n
, 1024, IFLA_BRPORT_GROUP_FWD_MASK
, mask
);
383 } else if (matches(*argv
, "vlan_tunnel") == 0) {
385 bridge_slave_parse_on_off("vlan_tunnel", *argv
, n
,
386 IFLA_BRPORT_VLAN_TUNNEL
);
387 } else if (matches(*argv
, "isolated") == 0) {
389 bridge_slave_parse_on_off("isolated", *argv
, n
,
390 IFLA_BRPORT_ISOLATED
);
391 } else if (matches(*argv
, "help") == 0) {
395 fprintf(stderr
, "bridge_slave: unknown option \"%s\"?\n",
406 static void bridge_slave_print_help(struct link_util
*lu
, int argc
, char **argv
,
412 struct link_util bridge_slave_link_util
= {
413 .id
= "bridge_slave",
414 .maxattr
= IFLA_BRPORT_MAX
,
415 .print_opt
= bridge_slave_print_opt
,
416 .parse_opt
= bridge_slave_parse_opt
,
417 .print_help
= bridge_slave_print_help
,
418 .parse_ifla_xstats
= bridge_parse_xstats
,
419 .print_ifla_xstats
= bridge_print_xstats
,