[PATCH 1/3] P2P: allow persistent group join retry limit to be configured via D-Bus
Matthew Wang
matthewmwang at chromium.org
Thu Dec 15 20:50:52 PST 2022
From: Matthew Wang <matthewmwang at google.com>
Android and ChromeOS use this to limit retries for auto GO join
operation.
---
wpa_supplicant/ctrl_iface.c | 2 +-
wpa_supplicant/dbus/dbus_new_handlers_p2p.c | 8 ++++-
wpa_supplicant/events.c | 3 ++
wpa_supplicant/p2p_supplicant.c | 34 ++++++++++++++++-----
wpa_supplicant/p2p_supplicant.h | 3 +-
wpa_supplicant/scan.c | 1 +
wpa_supplicant/wpa_supplicant_i.h | 1 +
7 files changed, 42 insertions(+), 10 deletions(-)
diff --git a/wpa_supplicant/ctrl_iface.c b/wpa_supplicant/ctrl_iface.c
index d34d4a777..b69651fa5 100644
--- a/wpa_supplicant/ctrl_iface.c
+++ b/wpa_supplicant/ctrl_iface.c
@@ -7128,7 +7128,7 @@ static int p2p_ctrl_group_add_persistent(struct wpa_supplicant *wpa_s,
return wpas_p2p_group_add_persistent(wpa_s, ssid, 0, freq,
vht_center_freq2, 0, ht40, vht,
vht_chwidth, he, edmg,
- NULL, 0, 0, allow_6ghz);
+ NULL, 0, 0, allow_6ghz, 0);
}
diff --git a/wpa_supplicant/dbus/dbus_new_handlers_p2p.c b/wpa_supplicant/dbus/dbus_new_handlers_p2p.c
index de79178f4..ac73c5fba 100644
--- a/wpa_supplicant/dbus/dbus_new_handlers_p2p.c
+++ b/wpa_supplicant/dbus/dbus_new_handlers_p2p.c
@@ -355,6 +355,7 @@ DBusMessage * wpas_dbus_handler_p2p_group_add(DBusMessage *message,
char *pg_object_path = NULL;
int persistent_group = 0;
int freq = 0;
+ int retry_limit = 0;
char *iface = NULL;
unsigned int group_id = 0;
struct wpa_ssid *ssid;
@@ -376,6 +377,11 @@ DBusMessage * wpas_dbus_handler_p2p_group_add(DBusMessage *message,
freq = entry.int32_value;
if (freq <= 0)
goto inv_args_clear;
+ } else if (os_strcmp(entry.key, "retry_limit") == 0 &&
+ entry.type == DBUS_TYPE_INT32) {
+ timeout = entry.int32_value;
+ if (timeout <= 0)
+ goto inv_args_clear;
} else if (os_strcmp(entry.key, "persistent_group_object") ==
0 &&
entry.type == DBUS_TYPE_OBJECT_PATH)
@@ -426,7 +432,7 @@ DBusMessage * wpas_dbus_handler_p2p_group_add(DBusMessage *message,
if (wpas_p2p_group_add_persistent(wpa_s, ssid, 0, freq, 0, 0, 0,
0, 0, 0, 0, NULL, 0, 0,
- false)) {
+ false, retry_limit)) {
reply = wpas_dbus_error_unknown_error(
message,
"Failed to reinvoke a persistent group");
diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index e55dbce5a..e9208ad33 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -2424,6 +2424,9 @@ static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
if (res == 1)
return 0;
+ if (wpas_p2p_retry_limit_exceeded(wpa_s)) {
+ return 0;
+ }
if (wpa_s->p2p_in_provisioning ||
wpa_s->show_group_started ||
wpa_s->p2p_in_invitation) {
diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index 4ef354b69..9f0d2faa3 100644
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -1013,6 +1013,7 @@ static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
}
wpa_s->p2p_in_invitation = 0;
+ wpa_s->p2p_retry_limit = 0;
eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
@@ -1407,6 +1408,7 @@ static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
wpa_s->p2p_in_provisioning = 0;
}
wpa_s->p2p_in_invitation = 0;
+ wpa_s->p2p_retry_limit = 0;
wpa_s->group_formation_reported = 1;
if (!success) {
@@ -2423,6 +2425,21 @@ void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
}
+bool wpas_p2p_retry_limit_exceeded(struct wpa_supplicant *wpa_s)
+{
+ if (!wpa_s->p2p_in_invitation || !wpa_s->p2p_retry_limit ||
+ wpa_s->p2p_in_invitation <= wpa_s->p2p_retry_limit) {
+ return false;
+ }
+ wpa_printf(MSG_DEBUG, "P2P: Group join retry limit exceeded");
+ eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
+ wpa_s->p2pdev, NULL);
+ eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
+ wpa_s->p2pdev, NULL);
+ return true;
+}
+
+
static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
{
struct wpa_supplicant *wpa_s = ctx;
@@ -3282,7 +3299,7 @@ static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
wpa_s->conf->p2p_go_he,
wpa_s->conf->p2p_go_edmg, NULL,
go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
- 1, is_p2p_allow_6ghz(wpa_s->global->p2p));
+ 1, is_p2p_allow_6ghz(wpa_s->global->p2p), 0);
} else if (bssid) {
wpa_s->user_initiated_pd = 0;
wpa_msg_global(wpa_s, MSG_INFO,
@@ -3512,7 +3529,7 @@ static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
ssid->mode == WPAS_MODE_P2P_GO ?
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
0, 1,
- is_p2p_allow_6ghz(wpa_s->global->p2p));
+ is_p2p_allow_6ghz(wpa_s->global->p2p), 0);
}
@@ -4598,7 +4615,7 @@ static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
persistent_go->mode ==
WPAS_MODE_P2P_GO ?
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
- 0, 0, false);
+ 0, 0, false, 0);
} else if (response_done) {
wpas_p2p_group_add(wpa_s, 1, freq,
0, 0, 0, 0, 0, 0, false);
@@ -4721,7 +4738,7 @@ static int wpas_prov_disc_resp_cb(void *ctx)
NULL,
persistent_go->mode == WPAS_MODE_P2P_GO ?
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0,
- is_p2p_allow_6ghz(wpa_s->global->p2p));
+ is_p2p_allow_6ghz(wpa_s->global->p2p), 0);
} else {
wpas_p2p_group_add(wpa_s, 1, freq, 0, 0, 0, 0, 0, 0,
is_p2p_allow_6ghz(wpa_s->global->p2p));
@@ -6894,7 +6911,7 @@ int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
struct wpa_ssid *params, int addr_allocated,
- int freq, int force_scan)
+ int freq, int force_scan, int retry_limit)
{
struct wpa_ssid *ssid;
int other_iface_found = 0;
@@ -6939,6 +6956,7 @@ static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
wpa_s->show_group_started = 1;
wpa_s->p2p_in_invitation = 1;
+ wpa_s->p2p_retry_limit = retry_limit;
wpa_s->p2p_invite_go_freq = freq;
wpa_s->p2p_go_group_formation_completed = 0;
wpa_s->global->p2p_group_formation = wpa_s;
@@ -6982,7 +7000,7 @@ int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
int edmg,
const struct p2p_channels *channels,
int connection_timeout, int force_scan,
- bool allow_6ghz)
+ bool allow_6ghz, int retry_limit)
{
struct p2p_go_neg_results params;
int go = 0, freq;
@@ -7050,7 +7068,7 @@ int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
}
return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
- force_scan);
+ force_scan, retry_limit);
} else {
return -1;
}
@@ -7806,6 +7824,7 @@ void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
wpa_s->global->p2p_group_formation = NULL;
wpa_s->p2p_in_provisioning = 0;
wpa_s->p2p_in_invitation = 0;
+ wpa_s->p2p_retry_limit = 0;
}
os_memset(go_dev_addr, 0, ETH_ALEN);
@@ -8639,6 +8658,7 @@ void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
wpa_s->global->p2p_group_formation = NULL;
wpa_s->p2p_in_provisioning = 0;
wpa_s->p2p_in_invitation = 0;
+ wpa_s->p2p_retry_limit = 0;
}
wpa_s->global->p2p_go_wait_client.sec = 0;
if (addr == NULL)
diff --git a/wpa_supplicant/p2p_supplicant.h b/wpa_supplicant/p2p_supplicant.h
index 70f59dcfd..11cc9c390 100644
--- a/wpa_supplicant/p2p_supplicant.h
+++ b/wpa_supplicant/p2p_supplicant.h
@@ -52,7 +52,7 @@ int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
int max_oper_chwidth, int he, int edmg,
const struct p2p_channels *channels,
int connection_timeout, int force_scan,
- bool allow_6ghz);
+ bool allow_6ghz, int retry_limit);
struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid);
enum wpas_p2p_prov_disc_use {
@@ -209,6 +209,7 @@ void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s);
int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s);
int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s);
void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s);
+bool wpas_p2p_retry_limit_exceeded(struct wpa_supplicant *wpa_s);
void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s);
void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s);
void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s);
diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
index 968906733..fc37c6b9a 100644
--- a/wpa_supplicant/scan.c
+++ b/wpa_supplicant/scan.c
@@ -467,6 +467,7 @@ static void wpa_supplicant_optimize_freqs(
*/
wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Clear p2p_in_invitation");
wpa_s->p2p_in_invitation = 0;
+ wpa_s->p2p_retry_limit = 0;
}
}
#endif /* CONFIG_P2P */
diff --git a/wpa_supplicant/wpa_supplicant_i.h b/wpa_supplicant/wpa_supplicant_i.h
index d92686139..984790067 100644
--- a/wpa_supplicant/wpa_supplicant_i.h
+++ b/wpa_supplicant/wpa_supplicant_i.h
@@ -1052,6 +1052,7 @@ struct wpa_supplicant {
int p2p_sd_over_ctrl_iface;
int p2p_in_provisioning;
int p2p_in_invitation;
+ int p2p_retry_limit;
int p2p_invite_go_freq;
int pending_invite_ssid_id;
int show_group_started;
--
2.39.0.314.g84b9a713c41-goog
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