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"
43 static void explain(void)
45 print_explain(stderr
);
48 static const char *port_states
[] = {
49 [BR_STATE_DISABLED
] = "disabled",
50 [BR_STATE_LISTENING
] = "listening",
51 [BR_STATE_LEARNING
] = "learning",
52 [BR_STATE_FORWARDING
] = "forwarding",
53 [BR_STATE_BLOCKING
] = "blocking",
56 static void print_portstate(FILE *f
, __u8 state
)
58 if (state
<= BR_STATE_BLOCKING
)
59 print_string(PRINT_ANY
,
64 print_int(PRINT_ANY
, "state_index", "state (%d) ", state
);
67 static void _print_onoff(FILE *f
, char *json_flag
, char *flag
, __u8 val
)
69 if (is_json_context())
70 print_bool(PRINT_JSON
, flag
, NULL
, val
);
72 fprintf(f
, "%s %s ", flag
, val
? "on" : "off");
75 static void _print_hex(FILE *f
,
76 const char *json_attr
,
80 if (is_json_context()) {
83 snprintf(b1
, sizeof(b1
), "0x%x", val
);
84 print_string(PRINT_JSON
, json_attr
, NULL
, b1
);
86 fprintf(f
, "%s 0x%x ", attr
, val
);
90 static void _print_timer(FILE *f
, const char *attr
, struct rtattr
*timer
)
94 __jiffies_to_tv(&tv
, rta_getattr_u64(timer
));
95 if (is_json_context()) {
96 json_writer_t
*jw
= get_json_writer();
99 jsonw_printf(jw
, "%i.%.2i",
100 (int)tv
.tv_sec
, (int)tv
.tv_usec
/ 10000);
102 fprintf(f
, "%s %4i.%.2i ", attr
, (int)tv
.tv_sec
,
103 (int)tv
.tv_usec
/ 10000);
107 static void bridge_slave_print_opt(struct link_util
*lu
, FILE *f
,
113 if (tb
[IFLA_BRPORT_STATE
])
114 print_portstate(f
, rta_getattr_u8(tb
[IFLA_BRPORT_STATE
]));
116 if (tb
[IFLA_BRPORT_PRIORITY
])
120 rta_getattr_u16(tb
[IFLA_BRPORT_PRIORITY
]));
122 if (tb
[IFLA_BRPORT_COST
])
126 rta_getattr_u32(tb
[IFLA_BRPORT_COST
]));
128 if (tb
[IFLA_BRPORT_MODE
])
129 _print_onoff(f
, "mode", "hairpin",
130 rta_getattr_u8(tb
[IFLA_BRPORT_MODE
]));
132 if (tb
[IFLA_BRPORT_GUARD
])
133 _print_onoff(f
, "guard", "guard",
134 rta_getattr_u8(tb
[IFLA_BRPORT_GUARD
]));
136 if (tb
[IFLA_BRPORT_PROTECT
])
137 _print_onoff(f
, "protect", "root_block",
138 rta_getattr_u8(tb
[IFLA_BRPORT_PROTECT
]));
140 if (tb
[IFLA_BRPORT_FAST_LEAVE
])
141 _print_onoff(f
, "fast_leave", "fastleave",
142 rta_getattr_u8(tb
[IFLA_BRPORT_FAST_LEAVE
]));
144 if (tb
[IFLA_BRPORT_LEARNING
])
145 _print_onoff(f
, "learning", "learning",
146 rta_getattr_u8(tb
[IFLA_BRPORT_LEARNING
]));
148 if (tb
[IFLA_BRPORT_UNICAST_FLOOD
])
149 _print_onoff(f
, "unicast_flood", "flood",
150 rta_getattr_u8(tb
[IFLA_BRPORT_UNICAST_FLOOD
]));
152 if (tb
[IFLA_BRPORT_ID
])
153 _print_hex(f
, "id", "port_id",
154 rta_getattr_u16(tb
[IFLA_BRPORT_ID
]));
156 if (tb
[IFLA_BRPORT_NO
])
157 _print_hex(f
, "no", "port_no",
158 rta_getattr_u16(tb
[IFLA_BRPORT_NO
]));
160 if (tb
[IFLA_BRPORT_DESIGNATED_PORT
])
161 print_uint(PRINT_ANY
,
163 "designated_port %u ",
164 rta_getattr_u16(tb
[IFLA_BRPORT_DESIGNATED_PORT
]));
166 if (tb
[IFLA_BRPORT_DESIGNATED_COST
])
167 print_uint(PRINT_ANY
,
169 "designated_cost %u ",
170 rta_getattr_u16(tb
[IFLA_BRPORT_DESIGNATED_COST
]));
172 if (tb
[IFLA_BRPORT_BRIDGE_ID
]) {
175 br_dump_bridge_id(RTA_DATA(tb
[IFLA_BRPORT_BRIDGE_ID
]),
176 bridge_id
, sizeof(bridge_id
));
177 print_string(PRINT_ANY
,
179 "designated_bridge %s ",
183 if (tb
[IFLA_BRPORT_ROOT_ID
]) {
186 br_dump_bridge_id(RTA_DATA(tb
[IFLA_BRPORT_ROOT_ID
]),
187 root_id
, sizeof(root_id
));
188 print_string(PRINT_ANY
,
190 "designated_root %s ", root_id
);
193 if (tb
[IFLA_BRPORT_HOLD_TIMER
])
194 _print_timer(f
, "hold_timer", tb
[IFLA_BRPORT_HOLD_TIMER
]);
196 if (tb
[IFLA_BRPORT_MESSAGE_AGE_TIMER
])
197 _print_timer(f
, "message_age_timer",
198 tb
[IFLA_BRPORT_MESSAGE_AGE_TIMER
]);
200 if (tb
[IFLA_BRPORT_FORWARD_DELAY_TIMER
])
201 _print_timer(f
, "forward_delay_timer",
202 tb
[IFLA_BRPORT_FORWARD_DELAY_TIMER
]);
204 if (tb
[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK
])
205 print_uint(PRINT_ANY
,
206 "topology_change_ack",
207 "topology_change_ack %u ",
208 rta_getattr_u8(tb
[IFLA_BRPORT_TOPOLOGY_CHANGE_ACK
]));
210 if (tb
[IFLA_BRPORT_CONFIG_PENDING
])
211 print_uint(PRINT_ANY
,
213 "config_pending %u ",
214 rta_getattr_u8(tb
[IFLA_BRPORT_CONFIG_PENDING
]));
216 if (tb
[IFLA_BRPORT_PROXYARP
])
217 _print_onoff(f
, "proxyarp", "proxy_arp",
218 rta_getattr_u8(tb
[IFLA_BRPORT_PROXYARP
]));
220 if (tb
[IFLA_BRPORT_PROXYARP_WIFI
])
221 _print_onoff(f
, "proxyarp_wifi", "proxy_arp_wifi",
222 rta_getattr_u8(tb
[IFLA_BRPORT_PROXYARP_WIFI
]));
224 if (tb
[IFLA_BRPORT_MULTICAST_ROUTER
])
225 print_uint(PRINT_ANY
,
228 rta_getattr_u8(tb
[IFLA_BRPORT_MULTICAST_ROUTER
]));
230 if (tb
[IFLA_BRPORT_FAST_LEAVE
])
231 // not printing any json here because
232 // we already printed fast_leave before
233 print_string(PRINT_FP
,
235 "mcast_fast_leave %s ",
236 rta_getattr_u8(tb
[IFLA_BRPORT_FAST_LEAVE
]) ? "on" : "off");
238 if (tb
[IFLA_BRPORT_MCAST_FLOOD
])
239 _print_onoff(f
, "mcast_flood", "mcast_flood",
240 rta_getattr_u8(tb
[IFLA_BRPORT_MCAST_FLOOD
]));
243 static void bridge_slave_parse_on_off(char *arg_name
, char *arg_val
,
244 struct nlmsghdr
*n
, int type
)
248 if (strcmp(arg_val
, "on") == 0)
250 else if (strcmp(arg_val
, "off") == 0)
253 invarg("should be \"on\" or \"off\"", arg_name
);
255 addattr8(n
, 1024, type
, val
);
258 static int bridge_slave_parse_opt(struct link_util
*lu
, int argc
, char **argv
,
266 if (matches(*argv
, "fdb_flush") == 0) {
267 addattr(n
, 1024, IFLA_BRPORT_FLUSH
);
268 } else if (matches(*argv
, "state") == 0) {
270 if (get_u8(&state
, *argv
, 0))
271 invarg("state is invalid", *argv
);
272 addattr8(n
, 1024, IFLA_BRPORT_STATE
, state
);
273 } else if (matches(*argv
, "priority") == 0) {
275 if (get_u16(&priority
, *argv
, 0))
276 invarg("priority is invalid", *argv
);
277 addattr16(n
, 1024, IFLA_BRPORT_PRIORITY
, priority
);
278 } else if (matches(*argv
, "cost") == 0) {
280 if (get_u32(&cost
, *argv
, 0))
281 invarg("cost is invalid", *argv
);
282 addattr32(n
, 1024, IFLA_BRPORT_COST
, cost
);
283 } else if (matches(*argv
, "hairpin") == 0) {
285 bridge_slave_parse_on_off("hairpin", *argv
, n
,
287 } else if (matches(*argv
, "guard") == 0) {
289 bridge_slave_parse_on_off("guard", *argv
, n
,
291 } else if (matches(*argv
, "root_block") == 0) {
293 bridge_slave_parse_on_off("root_block", *argv
, n
,
294 IFLA_BRPORT_PROTECT
);
295 } else if (matches(*argv
, "fastleave") == 0) {
297 bridge_slave_parse_on_off("fastleave", *argv
, n
,
298 IFLA_BRPORT_FAST_LEAVE
);
299 } else if (matches(*argv
, "learning") == 0) {
301 bridge_slave_parse_on_off("learning", *argv
, n
,
302 IFLA_BRPORT_LEARNING
);
303 } else if (matches(*argv
, "flood") == 0) {
305 bridge_slave_parse_on_off("flood", *argv
, n
,
306 IFLA_BRPORT_UNICAST_FLOOD
);
307 } else if (matches(*argv
, "mcast_flood") == 0) {
309 bridge_slave_parse_on_off("mcast_flood", *argv
, n
,
310 IFLA_BRPORT_MCAST_FLOOD
);
311 } else if (matches(*argv
, "proxy_arp") == 0) {
313 bridge_slave_parse_on_off("proxy_arp", *argv
, n
,
314 IFLA_BRPORT_PROXYARP
);
315 } else if (matches(*argv
, "proxy_arp_wifi") == 0) {
317 bridge_slave_parse_on_off("proxy_arp_wifi", *argv
, n
,
318 IFLA_BRPORT_PROXYARP_WIFI
);
319 } else if (matches(*argv
, "mcast_router") == 0) {
323 if (get_u8(&mcast_router
, *argv
, 0))
324 invarg("invalid mcast_router", *argv
);
325 addattr8(n
, 1024, IFLA_BRPORT_MULTICAST_ROUTER
,
327 } else if (matches(*argv
, "mcast_fast_leave") == 0) {
329 bridge_slave_parse_on_off("mcast_fast_leave", *argv
, n
,
330 IFLA_BRPORT_FAST_LEAVE
);
331 } else if (matches(*argv
, "help") == 0) {
335 fprintf(stderr
, "bridge_slave: unknown option \"%s\"?\n",
346 static void bridge_slave_print_help(struct link_util
*lu
, int argc
, char **argv
,
352 struct link_util bridge_slave_link_util
= {
353 .id
= "bridge_slave",
354 .maxattr
= IFLA_BRPORT_MAX
,
355 .print_opt
= bridge_slave_print_opt
,
356 .parse_opt
= bridge_slave_parse_opt
,
357 .print_help
= bridge_slave_print_help
,
358 .parse_ifla_xstats
= bridge_parse_xstats
,
359 .print_ifla_xstats
= bridge_print_xstats
,