The use of p2p_stop_find to detect p2p support
is not a trusted approach, due to p2p_stop_find currently
implemented in wpa_supplicant does not check p2p
availability, as p2p_find does, for instance. Therefore,
capabilitiy modes property, retrieved on interface added
signal, is a proper way to define if a wifi device has
p2p support.
---
gsupplicant/gsupplicant.h | 1 +
gsupplicant/supplicant.c | 35 +++
2 files changed, 12 insertions(+), 24 deletions(-)
diff --git a/gsupplicant/gsupplicant.h b/gsupplicant/gsupplicant.h
index 387a3aa..344459b 100644
--- a/gsupplicant/gsupplicant.h
+++ b/gsupplicant/gsupplicant.h
@@ -49,6 +49,7 @@ extern C {
#define G_SUPPLICANT_CAPABILITY_MODE_INFRA (1 0)
#define G_SUPPLICANT_CAPABILITY_MODE_IBSS (1 1)
#define G_SUPPLICANT_CAPABILITY_MODE_AP(1 2)
+#define G_SUPPLICANT_CAPABILITY_MODE_P2P (1 3)
#define G_SUPPLICANT_KEYMGMT_NONE (1 0)
#define G_SUPPLICANT_KEYMGMT_IEEE8021X (1 1)
diff --git a/gsupplicant/supplicant.c b/gsupplicant/supplicant.c
index 1886a40..6337650 100644
--- a/gsupplicant/supplicant.c
+++ b/gsupplicant/supplicant.c
@@ -131,6 +131,7 @@ static struct strvalmap mode_capa_map[] = {
{ infrastructure, G_SUPPLICANT_CAPABILITY_MODE_INFRA },
{ ad-hoc, G_SUPPLICANT_CAPABILITY_MODE_IBSS },
{ ap, G_SUPPLICANT_CAPABILITY_MODE_AP },
+ { p2p,G_SUPPLICANT_CAPABILITY_MODE_P2P},
{ }
};
@@ -2039,25 +2040,6 @@ static GSupplicantInterface *interface_alloc(const char
*path)
return interface;
}
-static void interface_p2p_stop_find(const char *error,
- DBusMessageIter *iter, void *user_data)
-{
- GSupplicantInterface *interface = user_data;
-
- if (error) {
- if (!g_strcmp0(error,
- org.freedesktop.DBus.Error.UnknownMethod)) {
- SUPPLICANT_DBG(wpa_supplicant does not support P2P);
- } else {
- SUPPLICANT_DBG(interface %s does not support P2P,
- interface-ifname);
- }
- } else
- interface-p2p_support = true;
-
- callback_p2p_support(interface);
-}
-
static void interface_added(DBusMessageIter *iter, void *user_data)
{
GSupplicantInterface *interface;
@@ -2080,22 +2062,27 @@ static void interface_added(DBusMessageIter *iter, void
*user_data)
if (!interface)
return;
- supplicant_dbus_method_call(path,
- SUPPLICANT_INTERFACE .Interface.P2PDevice, StopFind,
- NULL, interface_p2p_stop_find, interface, interface);
-
dbus_message_iter_next(iter);
if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_INVALID) {
supplicant_dbus_property_foreach(iter, interface_property,
interface);
interface_property(NULL, NULL, interface);
- return;
+ goto p2p_detection;
}
supplicant_dbus_property_get_all(path,
SUPPLICANT_INTERFACE .Interface,
interface_property, interface,
interface);
+
+p2p_detection:
+
+ if (interface-mode_capa G_SUPPLICANT_CAPABILITY_MODE_P2P) {
+ interface-p2p_support = true;
+ callback_p2p_support(interface);
+ }
+
+ return;
}
static void interface_removed(DBusMessageIter *iter, void *user_data)
--
1.9.1
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