[openwrt/openwrt] hostapd: let netifd set bridge port attributes for snooping

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch openwrt-21.02:
https://git.openwrt.org/4a53adbd43698249b434050757f3506c65dee41b

commit 4a53adbd43698249b434050757f3506c65dee41b
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Sep 1 19:12:27 2021 +0200

    hostapd: let netifd set bridge port attributes for snooping
    
    Avoids race conditions on bridge member add/remove
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
    (cherry-picked from commit 17d19a7d4398789ae8da3daf8e0db167d58b0782)
---
 .../services/hostapd/patches/740-snoop_iface.patch | 31 +++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/package/network/services/hostapd/patches/740-snoop_iface.patch b/package/network/services/hostapd/patches/740-snoop_iface.patch
index 722d1e713a..8d928f8505 100644
--- a/package/network/services/hostapd/patches/740-snoop_iface.patch
+++ b/package/network/services/hostapd/patches/740-snoop_iface.patch
@@ -10,7 +10,36 @@
  
 --- a/src/ap/x_snoop.c
 +++ b/src/ap/x_snoop.c
-@@ -71,8 +71,12 @@ x_snoop_get_l2_packet(struct hostapd_dat
+@@ -31,14 +31,16 @@ int x_snoop_init(struct hostapd_data *ha
+ 		return -1;
+ 	}
+ 
+-	if (hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_HAIRPIN_MODE,
++	if (!conf->snoop_iface[0] &&
++	    hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_HAIRPIN_MODE,
+ 					 1)) {
+ 		wpa_printf(MSG_DEBUG,
+ 			   "x_snoop: Failed to enable hairpin_mode on the bridge port");
+ 		return -1;
+ 	}
+ 
+-	if (hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_PROXYARP, 1)) {
++	if (!conf->snoop_iface[0] &&
++	    hostapd_drv_br_port_set_attr(hapd, DRV_BR_PORT_ATTR_PROXYARP, 1)) {
+ 		wpa_printf(MSG_DEBUG,
+ 			   "x_snoop: Failed to enable proxyarp on the bridge port");
+ 		return -1;
+@@ -52,7 +54,8 @@ int x_snoop_init(struct hostapd_data *ha
+ 	}
+ 
+ #ifdef CONFIG_IPV6
+-	if (hostapd_drv_br_set_net_param(hapd, DRV_BR_MULTICAST_SNOOPING, 1)) {
++	if (!conf->snoop_iface[0] &&
++	    hostapd_drv_br_set_net_param(hapd, DRV_BR_MULTICAST_SNOOPING, 1)) {
+ 		wpa_printf(MSG_DEBUG,
+ 			   "x_snoop: Failed to enable multicast snooping on the bridge");
+ 		return -1;
+@@ -71,8 +74,12 @@ x_snoop_get_l2_packet(struct hostapd_dat
  {
  	struct hostapd_bss_config *conf = hapd->conf;
  	struct l2_packet_data *l2;