[PATCH 2/4] wiphy: add driver quirk for disabling multicast rx (and helper)

[James Prestwood <prestwoj@gmail.com>]

This driver quirk and associated helper API lets other modules both
check if multicast RX is supported, and if its been disabled via
the driver quirk setting.
---
 src/wiphy.c | 17 +++++++++++++----
 src/wiphy.h |  1 +
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/wiphy.c b/src/wiphy.c
index ecc345e9..5e958d65 100644
--- a/src/wiphy.c
+++ b/src/wiphy.c
@@ -73,6 +73,7 @@ enum driver_flag {
 	FORCE_PAE = 0x2,
 	POWER_SAVE_DISABLE = 0x4,
 	OWE_DISABLE = 0x8,
+	MULTICAST_RX_DISABLE = 0x10,
 };
 
 struct driver_flag_name {
@@ -101,10 +102,11 @@ static const struct driver_info driver_infos[] = {
 };
 
 static const struct driver_flag_name driver_flag_names[] = {
-	{ "DefaultInterface", DEFAULT_IF },
-	{ "ForcePae",         FORCE_PAE },
-	{ "PowerSaveDisable", POWER_SAVE_DISABLE },
-	{ "OweDisable",       OWE_DISABLE },
+	{ "DefaultInterface",   DEFAULT_IF },
+	{ "ForcePae",           FORCE_PAE },
+	{ "PowerSaveDisable",   POWER_SAVE_DISABLE },
+	{ "OweDisable",         OWE_DISABLE },
+	{ "MulticastRxDisable", MULTICAST_RX_DISABLE }
 };
 
 struct wiphy {
@@ -949,6 +951,13 @@ bool wiphy_supports_cmd_offchannel(const struct wiphy *wiphy)
 	return wiphy->supports_cmd_offchannel;
 }
 
+bool wiphy_supports_multicast_rx(const struct wiphy *wiphy)
+{
+	return wiphy_has_ext_feature(wiphy,
+				NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS) &&
+				!(wiphy->driver_flags & MULTICAST_RX_DISABLE);
+}
+
 const uint8_t *wiphy_get_ht_capabilities(const struct wiphy *wiphy,
 						enum band_freq band,
 						size_t *size)
diff --git a/src/wiphy.h b/src/wiphy.h
index c527c79d..9fcbdcd2 100644
--- a/src/wiphy.h
+++ b/src/wiphy.h
@@ -143,6 +143,7 @@ void wiphy_get_reg_domain_country(struct wiphy *wiphy, char *out);
 bool wiphy_country_is_unknown(struct wiphy *wiphy);
 bool wiphy_supports_uapsd(const struct wiphy *wiphy);
 bool wiphy_supports_cmd_offchannel(const struct wiphy *wiphy);
+bool wiphy_supports_multicast_rx(const struct wiphy *wiphy);
 
 const uint8_t *wiphy_get_ht_capabilities(const struct wiphy *wiphy,
 						enum band_freq band,
-- 
2.34.1