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 [ state STATE ] [ priority PRIO ] [cost COST ]\n"
26 " [ guard {on | off} ]\n"
27 " [ hairpin {on | off} ] \n"
28 " [ fastleave {on | off} ]\n"
29 " [ root_block {on | off} ]\n"
30 " [ learning {on | off} ]\n"
31 " [ flood {on | off} ]\n"
35 static void explain(void)
37 print_explain(stderr
);
40 static const char *port_states
[] = {
41 [BR_STATE_DISABLED
] = "disabled",
42 [BR_STATE_LISTENING
] = "listening",
43 [BR_STATE_LEARNING
] = "learning",
44 [BR_STATE_FORWARDING
] = "forwarding",
45 [BR_STATE_BLOCKING
] = "blocking",
48 static void print_portstate(FILE *f
, __u8 state
)
50 if (state
<= BR_STATE_BLOCKING
)
51 fprintf(f
, "state %s ", port_states
[state
]);
53 fprintf(f
, "state (%d) ", state
);
56 static void print_onoff(FILE *f
, char *flag
, __u8 val
)
58 fprintf(f
, "%s %s ", flag
, val
? "on" : "off");
61 static void bridge_slave_print_opt(struct link_util
*lu
, FILE *f
,
67 if (tb
[IFLA_BRPORT_STATE
])
68 print_portstate(f
, rta_getattr_u8(tb
[IFLA_BRPORT_STATE
]));
70 if (tb
[IFLA_BRPORT_PRIORITY
])
71 fprintf(f
, "priority %d ",
72 rta_getattr_u16(tb
[IFLA_BRPORT_PRIORITY
]));
74 if (tb
[IFLA_BRPORT_COST
])
75 fprintf(f
, "cost %d ",
76 rta_getattr_u32(tb
[IFLA_BRPORT_COST
]));
78 if (tb
[IFLA_BRPORT_MODE
])
79 print_onoff(f
, "hairpin",
80 rta_getattr_u8(tb
[IFLA_BRPORT_MODE
]));
82 if (tb
[IFLA_BRPORT_GUARD
])
83 print_onoff(f
, "guard",
84 rta_getattr_u8(tb
[IFLA_BRPORT_GUARD
]));
86 if (tb
[IFLA_BRPORT_PROTECT
])
87 print_onoff(f
, "root_block",
88 rta_getattr_u8(tb
[IFLA_BRPORT_PROTECT
]));
90 if (tb
[IFLA_BRPORT_FAST_LEAVE
])
91 print_onoff(f
, "fastleave",
92 rta_getattr_u8(tb
[IFLA_BRPORT_FAST_LEAVE
]));
94 if (tb
[IFLA_BRPORT_LEARNING
])
95 print_onoff(f
, "learning",
96 rta_getattr_u8(tb
[IFLA_BRPORT_LEARNING
]));
98 if (tb
[IFLA_BRPORT_UNICAST_FLOOD
])
99 print_onoff(f
, "flood",
100 rta_getattr_u8(tb
[IFLA_BRPORT_UNICAST_FLOOD
]));
103 static void bridge_slave_parse_on_off(char *arg_name
, char *arg_val
,
104 struct nlmsghdr
*n
, int type
)
108 if (strcmp(arg_val
, "on") == 0)
110 else if (strcmp(arg_val
, "off") == 0)
113 invarg("should be \"on\" or \"off\"", arg_name
);
115 addattr8(n
, 1024, type
, val
);
118 static int bridge_slave_parse_opt(struct link_util
*lu
, int argc
, char **argv
,
126 if (matches(*argv
, "state") == 0) {
128 if (get_u8(&state
, *argv
, 0))
129 invarg("state is invalid", *argv
);
130 addattr8(n
, 1024, IFLA_BRPORT_STATE
, state
);
131 } else if (matches(*argv
, "priority") == 0) {
133 if (get_u16(&priority
, *argv
, 0))
134 invarg("priority is invalid", *argv
);
135 addattr16(n
, 1024, IFLA_BRPORT_PRIORITY
, priority
);
136 } else if (matches(*argv
, "cost") == 0) {
138 if (get_u32(&cost
, *argv
, 0))
139 invarg("cost is invalid", *argv
);
140 addattr32(n
, 1024, IFLA_BRPORT_COST
, cost
);
141 } else if (matches(*argv
, "hairpin") == 0) {
143 bridge_slave_parse_on_off("hairpin", *argv
, n
,
145 } else if (matches(*argv
, "guard") == 0) {
147 bridge_slave_parse_on_off("guard", *argv
, n
,
149 } else if (matches(*argv
, "root_block") == 0) {
151 bridge_slave_parse_on_off("root_block", *argv
, n
,
152 IFLA_BRPORT_PROTECT
);
153 } else if (matches(*argv
, "fastleave") == 0) {
155 bridge_slave_parse_on_off("fastleave", *argv
, n
,
156 IFLA_BRPORT_FAST_LEAVE
);
157 } else if (matches(*argv
, "learning") == 0) {
159 bridge_slave_parse_on_off("learning", *argv
, n
,
160 IFLA_BRPORT_LEARNING
);
161 } else if (matches(*argv
, "flood") == 0) {
163 bridge_slave_parse_on_off("flood", *argv
, n
,
164 IFLA_BRPORT_UNICAST_FLOOD
);
165 } else if (matches(*argv
, "help") == 0) {
169 fprintf(stderr
, "bridge_slave: unknown option \"%s\"?\n",
180 static void bridge_slave_print_help(struct link_util
*lu
, int argc
, char **argv
,
186 struct link_util bridge_slave_link_util
= {
188 .maxattr
= IFLA_BRPORT_MAX
,
189 .print_opt
= bridge_slave_print_opt
,
190 .parse_opt
= bridge_slave_parse_opt
,
191 .print_help
= bridge_slave_print_help
,