]>
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>
24 #include "libnetlink.h"
25 #include "br_common.h"
31 static void usage(void)
33 fprintf(stderr
, "Usage: bridge fdb { add | del } ADDR dev DEV {self|master} [ temp ]\n"
34 " [ dst IPADDR] [ vlan VID ]\n"
35 " [ port PORT] [ vni VNI ] [via DEV]\n");
36 fprintf(stderr
, " bridge fdb {show} [ dev DEV ]\n");
40 static const char *state_n2a(unsigned s
)
44 if (s
& NUD_PERMANENT
)
53 if (s
& NUD_REACHABLE
)
56 sprintf(buf
, "state=%#x", s
);
60 int print_fdb(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
63 struct ndmsg
*r
= NLMSG_DATA(n
);
64 int len
= n
->nlmsg_len
;
65 struct rtattr
* tb
[NDA_MAX
+1];
67 if (n
->nlmsg_type
!= RTM_NEWNEIGH
&& n
->nlmsg_type
!= RTM_DELNEIGH
) {
68 fprintf(stderr
, "Not RTM_NEWNEIGH: %08x %08x %08x\n",
69 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
74 len
-= NLMSG_LENGTH(sizeof(*r
));
76 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
80 if (r
->ndm_family
!= AF_BRIDGE
)
83 if (filter_index
&& filter_index
!= r
->ndm_ifindex
)
86 parse_rtattr(tb
, NDA_MAX
, NDA_RTA(r
),
87 n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
89 if (n
->nlmsg_type
== RTM_DELNEIGH
)
90 fprintf(fp
, "Deleted ");
95 ll_addr_n2a(RTA_DATA(tb
[NDA_LLADDR
]),
96 RTA_PAYLOAD(tb
[NDA_LLADDR
]),
97 ll_index_to_type(r
->ndm_ifindex
),
101 if (!filter_index
&& r
->ndm_ifindex
)
102 fprintf(fp
, "dev %s ", ll_index_to_name(r
->ndm_ifindex
));
106 fprintf(fp
, "dst %s ",
108 RTA_PAYLOAD(tb
[NDA_DST
]),
109 RTA_DATA(tb
[NDA_DST
]),
110 abuf
, sizeof(abuf
)));
114 __u16 vid
= rta_getattr_u16(tb
[NDA_VLAN
]);
115 fprintf(fp
, "vlan %hu ", vid
);
119 fprintf(fp
, "port %d ", ntohs(rta_getattr_u16(tb
[NDA_PORT
])));
121 fprintf(fp
, "vni %d ", rta_getattr_u32(tb
[NDA_VNI
]));
122 if (tb
[NDA_IFINDEX
]) {
123 unsigned int ifindex
= rta_getattr_u32(tb
[NDA_IFINDEX
]);
126 char ifname
[IF_NAMESIZE
];
128 if (if_indextoname(ifindex
, ifname
))
129 fprintf(fp
, "via %s ", ifname
);
131 fprintf(fp
, "via ifindex %u ", ifindex
);
135 if (show_stats
&& tb
[NDA_CACHEINFO
]) {
136 struct nda_cacheinfo
*ci
= RTA_DATA(tb
[NDA_CACHEINFO
]);
137 int hz
= get_user_hz();
139 fprintf(fp
, " used %d/%d", ci
->ndm_used
/hz
,
142 if (r
->ndm_flags
& NTF_SELF
)
143 fprintf(fp
, "self ");
144 if (r
->ndm_flags
& NTF_MASTER
)
145 fprintf(fp
, "master ");
147 fprintf(fp
, "%s\n", state_n2a(r
->ndm_state
));
151 static int fdb_show(int argc
, char **argv
)
153 char *filter_dev
= NULL
;
156 if (strcmp(*argv
, "dev") == 0) {
159 duparg("dev", *argv
);
166 filter_index
= if_nametoindex(filter_dev
);
167 if (filter_index
== 0) {
168 fprintf(stderr
, "Cannot find device \"%s\"\n",
174 if (rtnl_wilddump_request(&rth
, PF_BRIDGE
, RTM_GETNEIGH
) < 0) {
175 perror("Cannot send dump request");
179 if (rtnl_dump_filter(&rth
, print_fdb
, stdout
) < 0) {
180 fprintf(stderr
, "Dump terminated\n");
187 static int fdb_modify(int cmd
, int flags
, int argc
, char **argv
)
199 unsigned long port
= 0;
200 unsigned long vni
= ~0;
201 unsigned int via
= 0;
205 memset(&req
, 0, sizeof(req
));
207 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct ndmsg
));
208 req
.n
.nlmsg_flags
= NLM_F_REQUEST
|flags
;
209 req
.n
.nlmsg_type
= cmd
;
210 req
.ndm
.ndm_family
= PF_BRIDGE
;
211 req
.ndm
.ndm_state
= NUD_NOARP
;
214 if (strcmp(*argv
, "dev") == 0) {
217 } else if (strcmp(*argv
, "dst") == 0) {
220 duparg2("dst", *argv
);
221 get_addr(&dst
, *argv
, preferred_family
);
223 } else if (strcmp(*argv
, "port") == 0) {
226 port
= strtoul(*argv
, &endptr
, 0);
227 if (endptr
&& *endptr
) {
230 pse
= getservbyname(*argv
, "udp");
232 invarg("invalid port\n", *argv
);
233 port
= ntohs(pse
->s_port
);
234 } else if (port
> 0xffff)
235 invarg("invalid port\n", *argv
);
236 } else if (strcmp(*argv
, "vni") == 0) {
238 vni
= strtoul(*argv
, &endptr
, 0);
239 if ((endptr
&& *endptr
) ||
240 (vni
>> 24) || vni
== ULONG_MAX
)
241 invarg("invalid VNI\n", *argv
);
242 } else if (strcmp(*argv
, "via") == 0) {
244 via
= if_nametoindex(*argv
);
246 invarg("invalid device\n", *argv
);
247 } else if (strcmp(*argv
, "self") == 0) {
248 req
.ndm
.ndm_flags
|= NTF_SELF
;
249 } else if (matches(*argv
, "master") == 0) {
250 req
.ndm
.ndm_flags
|= NTF_MASTER
;
251 } else if (matches(*argv
, "local") == 0||
252 matches(*argv
, "permanent") == 0) {
253 req
.ndm
.ndm_state
|= NUD_PERMANENT
;
254 } else if (matches(*argv
, "temp") == 0) {
255 req
.ndm
.ndm_state
|= NUD_REACHABLE
;
256 } else if (matches(*argv
, "vlan") == 0) {
258 duparg2("vlan", *argv
);
262 if (strcmp(*argv
, "to") == 0) {
265 if (matches(*argv
, "help") == 0)
268 duparg2("to", *argv
);
274 if (d
== NULL
|| addr
== NULL
) {
275 fprintf(stderr
, "Device and address are required arguments.\n");
280 if (!(req
.ndm
.ndm_flags
&(NTF_SELF
|NTF_MASTER
)))
281 req
.ndm
.ndm_flags
|= NTF_SELF
;
283 /* Assume permanent */
284 if (!(req
.ndm
.ndm_state
&(NUD_PERMANENT
|NUD_REACHABLE
)))
285 req
.ndm
.ndm_state
|= NUD_PERMANENT
;
287 if (sscanf(addr
, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
288 abuf
, abuf
+1, abuf
+2,
289 abuf
+3, abuf
+4, abuf
+5) != 6) {
290 fprintf(stderr
, "Invalid mac address %s\n", addr
);
294 addattr_l(&req
.n
, sizeof(req
), NDA_LLADDR
, abuf
, ETH_ALEN
);
296 addattr_l(&req
.n
, sizeof(req
), NDA_DST
, &dst
.data
, dst
.bytelen
);
299 addattr16(&req
.n
, sizeof(req
), NDA_VLAN
, vid
);
302 unsigned short dport
;
304 dport
= htons((unsigned short)port
);
305 addattr16(&req
.n
, sizeof(req
), NDA_PORT
, dport
);
308 addattr32(&req
.n
, sizeof(req
), NDA_VNI
, vni
);
310 addattr32(&req
.n
, sizeof(req
), NDA_IFINDEX
, via
);
312 req
.ndm
.ndm_ifindex
= ll_name_to_index(d
);
313 if (req
.ndm
.ndm_ifindex
== 0) {
314 fprintf(stderr
, "Cannot find device \"%s\"\n", d
);
318 if (rtnl_talk(&rth
, &req
.n
, 0, 0, NULL
) < 0)
324 int do_fdb(int argc
, char **argv
)
329 if (matches(*argv
, "add") == 0)
330 return fdb_modify(RTM_NEWNEIGH
, NLM_F_CREATE
|NLM_F_EXCL
, argc
-1, argv
+1);
331 if (matches(*argv
, "append") == 0)
332 return fdb_modify(RTM_NEWNEIGH
, NLM_F_CREATE
|NLM_F_APPEND
, argc
-1, argv
+1);
333 if (matches(*argv
, "delete") == 0)
334 return fdb_modify(RTM_DELNEIGH
, 0, argc
-1, argv
+1);
335 if (matches(*argv
, "show") == 0 ||
336 matches(*argv
, "lst") == 0 ||
337 matches(*argv
, "list") == 0)
338 return fdb_show(argc
-1, argv
+1);
339 if (matches(*argv
, "help") == 0)
342 return fdb_show(0, NULL
);
344 fprintf(stderr
, "Command \"%s\" is unknown, try \"bridge fdb help\".\n", *argv
);