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git.proxmox.com Git - mirror_iproute2.git/blob - bridge/mdb.c
2 * Get mdb table with netlink
9 #include <sys/socket.h>
11 #include <netinet/in.h>
12 #include <linux/if_bridge.h>
13 #include <linux/if_ether.h>
15 #include <arpa/inet.h>
17 #include "libnetlink.h"
18 #include "br_common.h"
24 ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg))))
27 static unsigned int filter_index
;
29 static void usage(void)
31 fprintf(stderr
, "Usage: bridge mdb { add | del } dev DEV port PORT grp GROUP [permanent | temp]\n");
32 fprintf(stderr
, " bridge mdb {show} [ dev DEV ]\n");
36 static void br_print_router_ports(FILE *f
, struct rtattr
*attr
)
38 uint32_t *port_ifindex
;
42 rem
= RTA_PAYLOAD(attr
);
43 for (i
= RTA_DATA(attr
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
)) {
44 port_ifindex
= RTA_DATA(i
);
45 fprintf(f
, "%s ", ll_index_to_name(*port_ifindex
));
51 static void print_mdb_entry(FILE *f
, int ifindex
, struct br_mdb_entry
*e
)
55 if (e
->addr
.proto
== htons(ETH_P_IP
))
56 fprintf(f
, "dev %s port %s grp %s %s\n", ll_index_to_name(ifindex
),
57 ll_index_to_name(e
->ifindex
),
58 inet_ntop(AF_INET
, &e
->addr
.u
.ip4
, abuf
, sizeof(abuf
)),
59 (e
->state
& MDB_PERMANENT
) ? "permanent" : "temp");
61 fprintf(f
, "dev %s port %s grp %s %s\n", ll_index_to_name(ifindex
),
62 ll_index_to_name(e
->ifindex
),
63 inet_ntop(AF_INET6
, &e
->addr
.u
.ip6
, abuf
, sizeof(abuf
)),
64 (e
->state
& MDB_PERMANENT
) ? "permanent" : "temp");
67 static void br_print_mdb_entry(FILE *f
, int ifindex
, struct rtattr
*attr
)
71 struct br_mdb_entry
*e
;
73 rem
= RTA_PAYLOAD(attr
);
74 for (i
= RTA_DATA(attr
); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
)) {
76 print_mdb_entry(f
, ifindex
, e
);
80 int print_mdb(const struct sockaddr_nl
*who
, struct nlmsghdr
*n
, void *arg
)
83 struct br_port_msg
*r
= NLMSG_DATA(n
);
84 int len
= n
->nlmsg_len
;
85 struct rtattr
* tb
[MDBA_MAX
+1];
87 if (n
->nlmsg_type
!= RTM_GETMDB
&& n
->nlmsg_type
!= RTM_NEWMDB
&& n
->nlmsg_type
!= RTM_DELMDB
) {
88 fprintf(stderr
, "Not RTM_GETMDB, RTM_NEWMDB or RTM_DELMDB: %08x %08x %08x\n",
89 n
->nlmsg_len
, n
->nlmsg_type
, n
->nlmsg_flags
);
94 len
-= NLMSG_LENGTH(sizeof(*r
));
96 fprintf(stderr
, "BUG: wrong nlmsg len %d\n", len
);
100 if (filter_index
&& filter_index
!= r
->ifindex
)
103 parse_rtattr(tb
, MDBA_MAX
, MDBA_RTA(r
), n
->nlmsg_len
- NLMSG_LENGTH(sizeof(*r
)));
107 int rem
= RTA_PAYLOAD(tb
[MDBA_MDB
]);
109 for (i
= RTA_DATA(tb
[MDBA_MDB
]); RTA_OK(i
, rem
); i
= RTA_NEXT(i
, rem
))
110 br_print_mdb_entry(fp
, r
->ifindex
, i
);
113 if (tb
[MDBA_ROUTER
]) {
115 fprintf(fp
, "router ports on %s: ", ll_index_to_name(r
->ifindex
));
116 br_print_router_ports(fp
, tb
[MDBA_ROUTER
]);
123 static int mdb_show(int argc
, char **argv
)
125 char *filter_dev
= NULL
;
128 if (strcmp(*argv
, "dev") == 0) {
131 duparg("dev", *argv
);
138 filter_index
= if_nametoindex(filter_dev
);
139 if (filter_index
== 0) {
140 fprintf(stderr
, "Cannot find device \"%s\"\n",
146 if (rtnl_wilddump_request(&rth
, PF_BRIDGE
, RTM_GETMDB
) < 0) {
147 perror("Cannot send dump request");
151 if (rtnl_dump_filter(&rth
, print_mdb
, stdout
) < 0) {
152 fprintf(stderr
, "Dump terminated\n");
159 static int mdb_modify(int cmd
, int flags
, int argc
, char **argv
)
163 struct br_port_msg bpm
;
166 struct br_mdb_entry entry
;
167 char *d
= NULL
, *p
= NULL
, *grp
= NULL
;
169 memset(&req
, 0, sizeof(req
));
170 memset(&entry
, 0, sizeof(entry
));
172 req
.n
.nlmsg_len
= NLMSG_LENGTH(sizeof(struct br_port_msg
));
173 req
.n
.nlmsg_flags
= NLM_F_REQUEST
|flags
;
174 req
.n
.nlmsg_type
= cmd
;
175 req
.bpm
.family
= PF_BRIDGE
;
178 if (strcmp(*argv
, "dev") == 0) {
181 } else if (strcmp(*argv
, "grp") == 0) {
184 } else if (strcmp(*argv
, "port") == 0) {
187 } else if (strcmp(*argv
, "permanent") == 0) {
188 if (cmd
== RTM_NEWMDB
)
189 entry
.state
|= MDB_PERMANENT
;
190 } else if (strcmp(*argv
, "temp") == 0) {
193 if (matches(*argv
, "help") == 0)
199 if (d
== NULL
|| grp
== NULL
|| p
== NULL
) {
200 fprintf(stderr
, "Device, group address and port name are required arguments.\n");
204 req
.bpm
.ifindex
= ll_name_to_index(d
);
205 if (req
.bpm
.ifindex
== 0) {
206 fprintf(stderr
, "Cannot find device \"%s\"\n", d
);
210 entry
.ifindex
= ll_name_to_index(p
);
211 if (entry
.ifindex
== 0) {
212 fprintf(stderr
, "Cannot find device \"%s\"\n", p
);
216 if (!inet_pton(AF_INET
, grp
, &entry
.addr
.u
.ip4
)) {
217 if (!inet_pton(AF_INET6
, grp
, &entry
.addr
.u
.ip6
)) {
218 fprintf(stderr
, "Invalid address \"%s\"\n", grp
);
221 entry
.addr
.proto
= htons(ETH_P_IPV6
);
223 entry
.addr
.proto
= htons(ETH_P_IP
);
225 addattr_l(&req
.n
, sizeof(req
), MDBA_SET_ENTRY
, &entry
, sizeof(entry
));
227 if (rtnl_talk(&rth
, &req
.n
, NULL
, 0) < 0)
233 int do_mdb(int argc
, char **argv
)
238 if (matches(*argv
, "add") == 0)
239 return mdb_modify(RTM_NEWMDB
, NLM_F_CREATE
|NLM_F_EXCL
, argc
-1, argv
+1);
240 if (matches(*argv
, "delete") == 0)
241 return mdb_modify(RTM_DELMDB
, 0, argc
-1, argv
+1);
243 if (matches(*argv
, "show") == 0 ||
244 matches(*argv
, "lst") == 0 ||
245 matches(*argv
, "list") == 0)
246 return mdb_show(argc
-1, argv
+1);
247 if (matches(*argv
, "help") == 0)
250 return mdb_show(0, NULL
);
252 fprintf(stderr
, "Command \"%s\" is unknown, try \"bridge mdb help\".\n", *argv
);