Allow a ports to be designated as uplink. Multiple ports may be designated as uplinks and they will be kept in a list.
Signed-off-by: Vlad Yasevich <[email protected]> --- include/uapi/linux/if_link.h | 1 + net/bridge/br_netlink.c | 2 ++ net/bridge/br_private.h | 1 + net/bridge/br_sysfs_if.c | 2 ++ 4 files changed, 6 insertions(+), 0 deletions(-) diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index c4edfe1..b9444e9 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -220,6 +220,7 @@ enum { IFLA_BRPORT_GUARD, /* bpdu guard */ IFLA_BRPORT_PROTECT, /* root port protection */ IFLA_BRPORT_FAST_LEAVE, /* multicast fast leave */ + IFLA_BRPORT_UPLINK, /* uplink port */ __IFLA_BRPORT_MAX }; #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1) diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 27aa3ee..e08a50e 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -283,6 +283,7 @@ static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = { [IFLA_BRPORT_MODE] = { .type = NLA_U8 }, [IFLA_BRPORT_GUARD] = { .type = NLA_U8 }, [IFLA_BRPORT_PROTECT] = { .type = NLA_U8 }, + [IFLA_BRPORT_UPLINK] = { .type = NLA_U8 }, }; /* Change the state of the port and notify spanning tree */ @@ -329,6 +330,7 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[]) br_set_port_flag(p, tb, IFLA_BRPORT_MODE, BR_HAIRPIN_MODE); br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD); br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE); + br_set_port_flag(p, tb, IFLA_BRPORT_UPLINK, BR_UPLINK); if (tb[IFLA_BRPORT_COST]) { err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST])); diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 4a0fa29..44ae584 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -156,6 +156,7 @@ struct net_bridge_port #define BR_BPDU_GUARD 0x00000002 #define BR_ROOT_BLOCK 0x00000004 #define BR_MULTICAST_FAST_LEAVE 0x00000008 +#define BR_UPLINK 0x00000010 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING u32 multicast_startup_queries_sent; diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c index a1ef1b6..1f28cd4 100644 --- a/net/bridge/br_sysfs_if.c +++ b/net/bridge/br_sysfs_if.c @@ -158,6 +158,7 @@ static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush); BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE); BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD); BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK); +BRPORT_ATTR_FLAG(uplink, BR_UPLINK); #ifdef CONFIG_BRIDGE_IGMP_SNOOPING static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) @@ -195,6 +196,7 @@ static const struct brport_attribute *brport_attrs[] = { &brport_attr_hairpin_mode, &brport_attr_bpdu_guard, &brport_attr_root_block, + &brport_attr_uplink, #ifdef CONFIG_BRIDGE_IGMP_SNOOPING &brport_attr_multicast_router, &brport_attr_multicast_fast_leave, -- 1.7.7.6
