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bridge: Add learning and flood support 

Add ability to control learning and flood flags on bridge
ports.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
This commit is contained in:
Vlad Yasevich 2014-05-21 09:53:43 -04:00 committed by Stephen Hemminger
parent 3ff10e82c1
commit f0f4ab600b
2 changed files with 34 additions and 0 deletions
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22
bridge/link.c
View File

@ -185,6 +185,12 @@ int print_linkinfo(const struct sockaddr_nl *who,
if (prtb[IFLA_BRPORT_FAST_LEAVE]) if (prtb[IFLA_BRPORT_FAST_LEAVE])
print_onoff(fp, "fastleave", print_onoff(fp, "fastleave",
rta_getattr_u8(prtb[IFLA_BRPORT_FAST_LEAVE])); rta_getattr_u8(prtb[IFLA_BRPORT_FAST_LEAVE]));
if (prtb[IFLA_BRPORT_LEARNING])
print_onoff(fp, "learning",
rta_getattr_u8(prtb[IFLA_BRPORT_LEARNING]));
if (prtb[IFLA_BRPORT_UNICAST_FLOOD])
print_onoff(fp, "flood",
rta_getattr_u8(prtb[IFLA_BRPORT_UNICAST_FLOOD]));
} }
} else } else
print_portstate(fp, rta_getattr_u8(tb[IFLA_PROTINFO])); print_portstate(fp, rta_getattr_u8(tb[IFLA_PROTINFO]));
@ -214,6 +220,8 @@ static void usage(void)
fprintf(stderr, " [ hairpin {on | off} ] \n"); fprintf(stderr, " [ hairpin {on | off} ] \n");
fprintf(stderr, " [ fastleave {on | off} ]\n"); fprintf(stderr, " [ fastleave {on | off} ]\n");
fprintf(stderr, " [ root_block {on | off} ]\n"); fprintf(stderr, " [ root_block {on | off} ]\n");
fprintf(stderr, " [ learning {on | off} ]\n");
fprintf(stderr, " [ flood {on | off} ]\n");
fprintf(stderr, " [ hwmode {vepa | veb} ]\n"); fprintf(stderr, " [ hwmode {vepa | veb} ]\n");
fprintf(stderr, " bridge link show [dev DEV]\n"); fprintf(stderr, " bridge link show [dev DEV]\n");
exit(-1); exit(-1);
@ -243,6 +251,8 @@ static int brlink_modify(int argc, char **argv)
char buf[512]; char buf[512];
} req; } req;
char *d = NULL; char *d = NULL;
__s8 learning = -1;
__s8 flood = -1;
__s8 hairpin = -1; __s8 hairpin = -1;
__s8 bpdu_guard = -1; __s8 bpdu_guard = -1;
__s8 fast_leave = -1; __s8 fast_leave = -1;
@ -281,6 +291,14 @@ static int brlink_modify(int argc, char **argv)
NEXT_ARG(); NEXT_ARG();
if (!on_off("root_block", &root_block, *argv)) if (!on_off("root_block", &root_block, *argv))
exit(-1); exit(-1);
} else if (strcmp(*argv, "learning") == 0) {
NEXT_ARG();
if (!on_off("learning", &learning, *argv))
exit(-1);
} else if (strcmp(*argv, "flood") == 0) {
NEXT_ARG();
if (!on_off("flood", &flood, *argv))
exit(-1);
} else if (strcmp(*argv, "cost") == 0) { } else if (strcmp(*argv, "cost") == 0) {
NEXT_ARG(); NEXT_ARG();
cost = atoi(*argv); cost = atoi(*argv);
@ -335,6 +353,10 @@ static int brlink_modify(int argc, char **argv)
fast_leave); fast_leave);
if (root_block >= 0) if (root_block >= 0)
addattr8(&req.n, sizeof(req), IFLA_BRPORT_PROTECT, root_block); addattr8(&req.n, sizeof(req), IFLA_BRPORT_PROTECT, root_block);
if (flood >= 0)
addattr8(&req.n, sizeof(req), IFLA_BRPORT_UNICAST_FLOOD, flood);
if (learning >= 0)
addattr8(&req.n, sizeof(req), IFLA_BRPORT_LEARNING, learning);
if (cost > 0) if (cost > 0)
addattr32(&req.n, sizeof(req), IFLA_BRPORT_COST, cost); addattr32(&req.n, sizeof(req), IFLA_BRPORT_COST, cost);

12
man/man8/bridge.8
View File

@ -36,6 +36,8 @@ bridge \- show / manipulate bridge addresses and devices
.BR hairpin " { " on " | " off " } ] [ " .BR hairpin " { " on " | " off " } ] [ "
.BR fastleave " { " on " | " off " } ] [ " .BR fastleave " { " on " | " off " } ] [ "
.BR root_block " { " on " | " off " } ] [ " .BR root_block " { " on " | " off " } ] [ "
.BR learning " { " on " | " off " } ] [ "
.BR flood " { " on " | " off " } ] [ "
.BR hwmode " { " vepa " | " veb " } ] " .BR hwmode " { " vepa " | " veb " } ] "
.ti -8 .ti -8
@ -233,6 +235,16 @@ enabled on the bridge. By default the flag is off.
Controls whether a given port is allowed to become root port or not. Only used Controls whether a given port is allowed to become root port or not. Only used
when STP is enabled on the bridge. By default the flag is off. when STP is enabled on the bridge. By default the flag is off.
.TP
.BR "learning on " or " learning off "
Controls whether a given port will learn MAC addresses from received traffic or
not. If learning if off, the bridge will end up flooding any traffic for which
it has no FDB entry. By default this flag is on.
.TP
.BR "flooding on " or " flooding off "
Controls whether a given port will flood unicast traffic for which there is no FDB entry. By default this flag is on.
.TP .TP
.BI hwmode .BI hwmode
Some network interface cards support HW bridge functionality and they may be Some network interface cards support HW bridge functionality and they may be