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hostapd: fix a race condition on adding AP mode wds sta interfaces

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Both hostapd and netifd attempt to add a VLAN device to a bridge.
Depending on which one wins the race, bridge vlan settings might be incomplete,
or hostapd might run into an error and refuse to service the client.
Fix this by preventing hostapd from adding interfaces to the bridge and
instead rely entirely on netifd handling this properly

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit da4be02fcd)
(cherry-picked from commit 63c01ad025)
This commit is contained in:
Felix Fietkau 2021-10-20 21:13:10 +02:00
parent d9373c5922
commit 9b660c63ad
3 changed files with 26 additions and 4 deletions
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2
package/network/services/hostapd/files/hostapd.sh
View File

@ -729,7 +729,7 @@ hostapd_set_bss_options() {
}
append bss_conf "ssid=$ssid" "$N"
[ -n "$network_bridge" ] && append bss_conf "bridge=$network_bridge" "$N"
[ -n "$network_bridge" ] && append bss_conf "bridge=$network_bridge${N}wds_bridge=" "$N"
[ -n "$network_ifname" ] && append bss_conf "snoop_iface=$network_ifname" "$N"
[ -n "$iapp_interface" ] && {
local ifname

22
package/network/services/hostapd/patches/711-wds_bridge_force.patch Normal file
View File

@ -0,0 +1,22 @@
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2357,6 +2357,8 @@ static int hostapd_config_fill(struct ho
sizeof(conf->bss[0]->iface));
} else if (os_strcmp(buf, "bridge") == 0) {
os_strlcpy(bss->bridge, pos, sizeof(bss->bridge));
+ if (!bss->wds_bridge[0])
+ os_strlcpy(bss->wds_bridge, pos, sizeof(bss->wds_bridge));
} else if (os_strcmp(buf, "vlan_bridge") == 0) {
os_strlcpy(bss->vlan_bridge, pos, sizeof(bss->vlan_bridge));
} else if (os_strcmp(buf, "wds_bridge") == 0) {
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -340,8 +340,6 @@ int hostapd_set_wds_sta(struct hostapd_d
return -1;
if (hapd->conf->wds_bridge[0])
bridge = hapd->conf->wds_bridge;
- else if (hapd->conf->bridge[0])
- bridge = hapd->conf->bridge;
return hapd->driver->set_wds_sta(hapd->drv_priv, addr, aid, val,
bridge, ifname_wds);
}

6
package/network/services/hostapd/patches/740-snoop_iface.patch
View File

@ -55,10 +55,10 @@
"x_snoop: Failed to initialize L2 packet processing %s",
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2357,6 +2357,8 @@ static int hostapd_config_fill(struct ho
sizeof(conf->bss[0]->iface));
} else if (os_strcmp(buf, "bridge") == 0) {
@@ -2359,6 +2359,8 @@ static int hostapd_config_fill(struct ho
os_strlcpy(bss->bridge, pos, sizeof(bss->bridge));
if (!bss->wds_bridge[0])
os_strlcpy(bss->wds_bridge, pos, sizeof(bss->wds_bridge));
+ } else if (os_strcmp(buf, "snoop_iface") == 0) {
+ os_strlcpy(bss->snoop_iface, pos, sizeof(bss->snoop_iface));
} else if (os_strcmp(buf, "vlan_bridge") == 0) {