]>
git.proxmox.com Git - mirror_iproute2.git/blob - bridge/fdb.c
2 * Get/set/delete fdb table with netlink
4 * TODO: merge/replace this with ip neighbour
6 * Authors: Stephen Hemminger <shemminger@vyatta.com>
15 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <linux/if_bridge.h>
20 #include <linux/if_ether.h>
21 #include <linux/neighbour.h>
25 #include "libnetlink.h"
26 #include "br_common.h"
30 static unsigned int filter_index
;
32 static void usage(void)
34 fprintf(stderr
, "Usage: bridge fdb { add | append | del | replace ADDR dev DEV\n"
35 " [ self ] [ master ] [ use ] [ router ]\n"
36 " [ local | temp ] [ dst IPADDR ] [ vlan VID ]\n"
37 " [ port PORT] [ vni VNI ] [via DEV]\n");
38 fprintf(stderr
, " bridge fdb {show} [ br BRDEV ] [ brport DEV ]\n");
42 static const char *state_n2a(unsigned s
)
46 if (s
& NUD_PERMANENT
)
55 if (s
& NUD_REACHABLE
)
58 sprintf(buf
, "state=%#x", s
);
62 int print_fdb(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
65 struct ndmsg
*r
= NLMSG_DATA(n
);
66 int len
= n
->nlmsg_len
;
67 struct rtattr
* tb
[NDA_MAX
+1];
69 if (n
->nlmsg_type
!= RTM_NEWNEIGH
&& n
->nlmsg_type
!= RTM_DELNEIGH
) {
70 fprintf(stderr
, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
71 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
76 len
-= NLMSG_LENGTH(sizeof(*r
));
78 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
82 if (r
->ndm_family
!= AF_BRIDGE
)
85 if (filter_index
&& filter_index
!= r
->ndm_ifindex
)
88 parse_rtattr(tb
, NDA_MAX
, NDA_RTA(r
),
89 n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
91 if (n
->nlmsg_type
== RTM_DELNEIGH
)
92 fprintf(fp
, "Deleted ");
97 ll_addr_n2a(RTA_DATA(tb
[NDA_LLADDR
]),
98 RTA_PAYLOAD(tb
[NDA_LLADDR
]),
99 ll_index_to_type(r
->ndm_ifindex
),
103 if (!filter_index
&& r
->ndm_ifindex
)
104 fprintf(fp
, "dev %s ", ll_index_to_name(r
->ndm_ifindex
));
108 int family
= AF_INET
;
110 if (RTA_PAYLOAD(tb
[NDA_DST
]) == sizeof(struct in6_addr
))
113 fprintf(fp
, "dst %s ",
115 RTA_PAYLOAD(tb
[NDA_DST
]),
116 RTA_DATA(tb
[NDA_DST
]),
117 abuf
, sizeof(abuf
)));
121 __u16 vid
= rta_getattr_u16(tb
[NDA_VLAN
]);
122 fprintf(fp
, "vlan %hu ", vid
);
126 fprintf(fp
, "port %d ", ntohs(rta_getattr_u16(tb
[NDA_PORT
])));
128 fprintf(fp
, "vni %d ", rta_getattr_u32(tb
[NDA_VNI
]));
129 if (tb
[NDA_IFINDEX
]) {
130 unsigned int ifindex
= rta_getattr_u32(tb
[NDA_IFINDEX
]);
133 char ifname
[IF_NAMESIZE
];
135 if (!tb
[NDA_LINK_NETNSID
] &&
136 if_indextoname(ifindex
, ifname
))
137 fprintf(fp
, "via %s ", ifname
);
139 fprintf(fp
, "via ifindex %u ", ifindex
);
142 if (tb
[NDA_LINK_NETNSID
])
143 fprintf(fp
, "link-netnsid %d ",
144 rta_getattr_u32(tb
[NDA_LINK_NETNSID
]));
146 if (show_stats
&& tb
[NDA_CACHEINFO
]) {
147 struct nda_cacheinfo
*ci
= RTA_DATA(tb
[NDA_CACHEINFO
]);
148 int hz
= get_user_hz();
150 fprintf(fp
, "used %d/%d ", ci
->ndm_used
/hz
,
153 if (r
->ndm_flags
& NTF_SELF
)
154 fprintf(fp
, "self ");
156 fprintf(fp
, "master %s ",
157 ll_index_to_name(rta_getattr_u32(tb
[NDA_MASTER
])));
158 else if (r
->ndm_flags
& NTF_MASTER
)
159 fprintf(fp
, "master ");
160 if (r
->ndm_flags
& NTF_ROUTER
)
161 fprintf(fp
, "router ");
162 if (r
->ndm_flags
& NTF_EXT_LEARNED
)
163 fprintf(fp
, "offload ");
165 fprintf(fp
, "%s\n", state_n2a(r
->ndm_state
));
171 static int fdb_show(int argc
, char **argv
)
175 struct ifinfomsg ifm
;
179 char *filter_dev
= NULL
;
181 int msg_size
= sizeof(struct ifinfomsg
);
183 memset(&req
, 0, sizeof(req
));
184 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct ifinfomsg
));
185 req
.ifm
.ifi_family
= PF_BRIDGE
;
188 if ((strcmp(*argv
, "brport") == 0) || strcmp(*argv
, "dev") == 0) {
191 } else if (strcmp(*argv
, "br") == 0) {
195 if (matches(*argv
, "help") == 0)
202 int br_ifindex
= ll_name_to_index(br
);
203 if (br_ifindex
== 0) {
204 fprintf(stderr
, "Cannot find bridge device \"%s\"\n", br
);
207 addattr32(&req
.n
, sizeof(req
), IFLA_MASTER
, br_ifindex
);
208 msg_size
+= RTA_LENGTH(4);
211 /*we'll keep around filter_dev for older kernels */
213 filter_index
= if_nametoindex(filter_dev
);
214 if (filter_index
== 0) {
215 fprintf(stderr
, "Cannot find device \"%s\"\n",
219 req
.ifm
.ifi_index
= filter_index
;
222 if (rtnl_dump_request(&rth
, RTM_GETNEIGH
, &req
.ifm
, msg_size
) < 0) {
223 perror("Cannot send dump request");
227 if (rtnl_dump_filter(&rth
, print_fdb
, stdout
) < 0) {
228 fprintf(stderr
, "Dump terminated\n");
235 static int fdb_modify(int cmd
, int flags
, int argc
, char **argv
)
247 unsigned long port
= 0;
248 unsigned long vni
= ~0;
249 unsigned int via
= 0;
253 memset(&req
, 0, sizeof(req
));
255 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct ndmsg
));
256 req
.n
.nlmsg_flags
= NLM_F_REQUEST
|flags
;
257 req
.n
.nlmsg_type
= cmd
;
258 req
.ndm
.ndm_family
= PF_BRIDGE
;
259 req
.ndm
.ndm_state
= NUD_NOARP
;
262 if (strcmp(*argv
, "dev") == 0) {
265 } else if (strcmp(*argv
, "dst") == 0) {
268 duparg2("dst", *argv
);
269 get_addr(&dst
, *argv
, preferred_family
);
271 } else if (strcmp(*argv
, "port") == 0) {
274 port
= strtoul(*argv
, &endptr
, 0);
275 if (endptr
&& *endptr
) {
278 pse
= getservbyname(*argv
, "udp");
280 invarg("invalid port\n", *argv
);
281 port
= ntohs(pse
->s_port
);
282 } else if (port
> 0xffff)
283 invarg("invalid port\n", *argv
);
284 } else if (strcmp(*argv
, "vni") == 0) {
286 vni
= strtoul(*argv
, &endptr
, 0);
287 if ((endptr
&& *endptr
) ||
288 (vni
>> 24) || vni
== ULONG_MAX
)
289 invarg("invalid VNI\n", *argv
);
290 } else if (strcmp(*argv
, "via") == 0) {
292 via
= if_nametoindex(*argv
);
294 invarg("invalid device\n", *argv
);
295 } else if (strcmp(*argv
, "self") == 0) {
296 req
.ndm
.ndm_flags
|= NTF_SELF
;
297 } else if (matches(*argv
, "master") == 0) {
298 req
.ndm
.ndm_flags
|= NTF_MASTER
;
299 } else if (matches(*argv
, "router") == 0) {
300 req
.ndm
.ndm_flags
|= NTF_ROUTER
;
301 } else if (matches(*argv
, "local") == 0||
302 matches(*argv
, "permanent") == 0) {
303 req
.ndm
.ndm_state
|= NUD_PERMANENT
;
304 } else if (matches(*argv
, "temp") == 0) {
305 req
.ndm
.ndm_state
|= NUD_REACHABLE
;
306 } else if (matches(*argv
, "vlan") == 0) {
308 duparg2("vlan", *argv
);
311 } else if (matches(*argv
, "use") == 0) {
312 req
.ndm
.ndm_flags
|= NTF_USE
;
314 if (strcmp(*argv
, "to") == 0) {
317 if (matches(*argv
, "help") == 0)
320 duparg2("to", *argv
);
326 if (d
== NULL
|| addr
== NULL
) {
327 fprintf(stderr
, "Device and address are required arguments.\n");
332 if (!(req
.ndm
.ndm_flags
&(NTF_SELF
|NTF_MASTER
)))
333 req
.ndm
.ndm_flags
|= NTF_SELF
;
335 /* Assume permanent */
336 if (!(req
.ndm
.ndm_state
&(NUD_PERMANENT
|NUD_REACHABLE
)))
337 req
.ndm
.ndm_state
|= NUD_PERMANENT
;
339 if (sscanf(addr
, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
340 abuf
, abuf
+1, abuf
+2,
341 abuf
+3, abuf
+4, abuf
+5) != 6) {
342 fprintf(stderr
, "Invalid mac address %s\n", addr
);
346 addattr_l(&req
.n
, sizeof(req
), NDA_LLADDR
, abuf
, ETH_ALEN
);
348 addattr_l(&req
.n
, sizeof(req
), NDA_DST
, &dst
.data
, dst
.bytelen
);
351 addattr16(&req
.n
, sizeof(req
), NDA_VLAN
, vid
);
354 unsigned short dport
;
356 dport
= htons((unsigned short)port
);
357 addattr16(&req
.n
, sizeof(req
), NDA_PORT
, dport
);
360 addattr32(&req
.n
, sizeof(req
), NDA_VNI
, vni
);
362 addattr32(&req
.n
, sizeof(req
), NDA_IFINDEX
, via
);
364 req
.ndm
.ndm_ifindex
= ll_name_to_index(d
);
365 if (req
.ndm
.ndm_ifindex
== 0) {
366 fprintf(stderr
, "Cannot find device \"%s\"\n", d
);
370 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
376 int do_fdb(int argc
, char **argv
)
381 if (matches(*argv
, "add") == 0)
382 return fdb_modify(RTM_NEWNEIGH
, NLM_F_CREATE
|NLM_F_EXCL
, argc
-1, argv
+1);
383 if (matches(*argv
, "append") == 0)
384 return fdb_modify(RTM_NEWNEIGH
, NLM_F_CREATE
|NLM_F_APPEND
, argc
-1, argv
+1);
385 if (matches(*argv
, "replace") == 0)
386 return fdb_modify(RTM_NEWNEIGH
, NLM_F_CREATE
|NLM_F_REPLACE
, argc
-1, argv
+1);
387 if (matches(*argv
, "delete") == 0)
388 return fdb_modify(RTM_DELNEIGH
, 0, argc
-1, argv
+1);
389 if (matches(*argv
, "show") == 0 ||
390 matches(*argv
, "lst") == 0 ||
391 matches(*argv
, "list") == 0)
392 return fdb_show(argc
-1, argv
+1);
393 if (matches(*argv
, "help") == 0)
396 return fdb_show(0, NULL
);
398 fprintf(stderr
, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv
);