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station: set evict_nocarrier sysfs option during roaming

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If the kernel supports evict_nocarrier set this during the roam
to prevent packet delays post roam.
This commit is contained in:
James Prestwood 2021-11-03 15:15:01 -07:00 committed by Denis Kenzior
parent 25936b1365
commit 873924a027
1 changed files with 26 additions and 3 deletions
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29
src/station.c
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@ -57,12 +57,15 @@
#include "src/anqputil.h"
#include "src/diagnostic.h"
#include "src/frame-xchg.h"
#include "src/sysfs.h"
static struct l_queue *station_list;
static uint32_t netdev_watch;
static uint32_t mfp_setting;
static uint32_t roam_retry_interval;
static bool anqp_disabled;
static bool supports_arp_evict_nocarrier;
static bool supports_ndisc_evict_nocarrier;
static struct watchlist event_watches;
struct station {
@ -1384,6 +1387,19 @@ static const char *station_state_to_string(enum station_state state)
return "invalid";
}
static void station_set_evict_nocarrier(struct station *station, bool value)
{
char *v = value ? "1" : "0";
if (supports_arp_evict_nocarrier)
sysfs_write_ipv4_setting(netdev_get_name(station->netdev),
"arp_evict_nocarrier", v);
if (supports_ndisc_evict_nocarrier)
sysfs_write_ipv6_setting(netdev_get_name(station->netdev),
"ndisc_evict_nocarrier", v);
}
static void station_enter_state(struct station *station,
enum station_state state)
{
@ -1429,9 +1445,6 @@ static void station_enter_state(struct station *station,
network_get_path(station->connected_network),
IWD_NETWORK_INTERFACE, "Connected");
periodic_scan_stop(station);
break;
case STATION_STATE_DISCONNECTED:
periodic_scan_stop(station);
break;
case STATION_STATE_CONNECTED:
@ -1439,11 +1452,16 @@ static void station_enter_state(struct station *station,
netdev_get_path(station->netdev),
IWD_STATION_DIAGNOSTIC_INTERFACE,
station);
/* Fall through */
case STATION_STATE_DISCONNECTED:
periodic_scan_stop(station);
station_set_evict_nocarrier(station, true);
break;
case STATION_STATE_DISCONNECTING:
break;
case STATION_STATE_ROAMING:
station_set_evict_nocarrier(station, false);
break;
}
@ -4457,6 +4475,11 @@ static int station_init(void)
if (!netconfig_enabled())
l_info("station: Network configuration is disabled.");
supports_arp_evict_nocarrier = sysfs_supports_ipv4_setting("all",
"arp_evict_nocarrier");
supports_ndisc_evict_nocarrier = sysfs_supports_ipv6_setting("all",
"ndisc_evict_nocarrier");
watchlist_init(&event_watches, NULL);
return 0;