Add the optional keyword "vid" to bridge mdb show so the user can request filtering by a specific vlan id. Currently the filtering is implemented only in user-space. The argument name has been chosen to match the add/del one - "vid".
Example: $ bridge mdb show vid 200 dev br0 port eth2 grp 239.0.0.1 permanent vid 200 Signed-off-by: Nikolay Aleksandrov <[email protected]> --- bridge/mdb.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/bridge/mdb.c b/bridge/mdb.c index 842536ec003c..6c904f8e6ae8 100644 --- a/bridge/mdb.c +++ b/bridge/mdb.c @@ -24,12 +24,12 @@ ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct br_port_msg)))) #endif -static unsigned int filter_index; +static unsigned int filter_index, filter_vlan; static void usage(void) { fprintf(stderr, "Usage: bridge mdb { add | del } dev DEV port PORT grp GROUP [permanent | temp] [vid VID]\n"); - fprintf(stderr, " bridge mdb {show} [ dev DEV ]\n"); + fprintf(stderr, " bridge mdb {show} [ dev DEV ] [ vid VID ]\n"); exit(-1); } @@ -92,6 +92,8 @@ static void print_mdb_entry(FILE *f, int ifindex, struct br_mdb_entry *e, const void *src; int af; + if (filter_vlan && e->vid != filter_vlan) + return; af = e->addr.proto == htons(ETH_P_IP) ? AF_INET : AF_INET6; src = af == AF_INET ? (const void *)&e->addr.u.ip4 : (const void *)&e->addr.u.ip6; @@ -195,6 +197,11 @@ static int mdb_show(int argc, char **argv) if (filter_dev) duparg("dev", *argv); filter_dev = *argv; + } else if (strcmp(*argv, "vid") == 0) { + NEXT_ARG(); + if (filter_vlan) + duparg("vid", *argv); + filter_vlan = atoi(*argv); } argc--; argv++; } -- 2.4.3
