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nl80211: Add a separate driver capability for control port RX

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This is needed since the initial implementation of the control port
mechanism in the kernel mixed in RSN pre-authentication ethertype
unconditionally (and IMHO, incorrectly) into the control port.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2020-04-19 12:30:55 +03:00
parent bb9e3935dd
commit 932546ac28
4 changed files with 10 additions and 2 deletions
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4
src/drivers/driver.h
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@ -1838,7 +1838,7 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_FTM_RESPONDER 0x0100000000000000ULL #define WPA_DRIVER_FLAGS_FTM_RESPONDER 0x0100000000000000ULL
/** Driver support 4-way handshake offload for WPA-Personal */ /** Driver support 4-way handshake offload for WPA-Personal */
#define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK 0x0200000000000000ULL #define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK 0x0200000000000000ULL
/** Driver supports a separate control port for EAPOL frames */ /** Driver supports a separate control port TX for EAPOL frames */
#define WPA_DRIVER_FLAGS_CONTROL_PORT 0x0400000000000000ULL #define WPA_DRIVER_FLAGS_CONTROL_PORT 0x0400000000000000ULL
/** Driver supports VLAN offload */ /** Driver supports VLAN offload */
#define WPA_DRIVER_FLAGS_VLAN_OFFLOAD 0x0800000000000000ULL #define WPA_DRIVER_FLAGS_VLAN_OFFLOAD 0x0800000000000000ULL
@ -1852,6 +1852,8 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_EXTENDED_KEY_ID 0x8000000000000000ULL #define WPA_DRIVER_FLAGS_EXTENDED_KEY_ID 0x8000000000000000ULL
u64 flags; u64 flags;
/** Driver supports a separate control port RX for EAPOL frames */
#define WPA_DRIVER_FLAGS2_CONTROL_PORT_RX 0x0000000000000001ULL
u64 flags2; u64 flags2;
#define FULL_AP_CLIENT_STATE_SUPP(drv_flags) \ #define FULL_AP_CLIENT_STATE_SUPP(drv_flags) \

1
src/drivers/driver_common.c
View file

@ -327,6 +327,7 @@ const char * driver_flag2_to_string(u64 flag2)
{ {
#define DF2S(x) case WPA_DRIVER_FLAGS2_ ## x: return #x #define DF2S(x) case WPA_DRIVER_FLAGS2_ ## x: return #x
switch (flag2) { switch (flag2) {
DF2S(CONTROL_PORT_RX);
} }
return "UNKNOWN"; return "UNKNOWN";
#undef DF2S #undef DF2S

4
src/drivers/driver_nl80211.c
View file

@ -8124,8 +8124,10 @@ static int nl80211_set_param(void *priv, const char *param)
drv->test_use_roc_tx = 1; drv->test_use_roc_tx = 1;
} }
if (os_strstr(param, "control_port=0")) if (os_strstr(param, "control_port=0")) {
drv->capa.flags &= ~WPA_DRIVER_FLAGS_CONTROL_PORT; drv->capa.flags &= ~WPA_DRIVER_FLAGS_CONTROL_PORT;
drv->capa.flags2 &= ~WPA_DRIVER_FLAGS2_CONTROL_PORT_RX;
}
if (os_strstr(param, "full_ap_client_state=0")) if (os_strstr(param, "full_ap_client_state=0"))
drv->capa.flags &= ~WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE; drv->capa.flags &= ~WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE;

3
src/drivers/driver_nl80211_capa.c
View file

@ -441,6 +441,9 @@ static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
if (ext_feature_isset(ext_features, len, if (ext_feature_isset(ext_features, len,
NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211)) NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
capa->flags |= WPA_DRIVER_FLAGS_CONTROL_PORT; capa->flags |= WPA_DRIVER_FLAGS_CONTROL_PORT;
if (ext_feature_isset(ext_features, len,
NL80211_EXT_FEATURE_CONTROL_PORT_NO_PREAUTH))
capa->flags2 |= WPA_DRIVER_FLAGS2_CONTROL_PORT_RX;
if (ext_feature_isset(ext_features, len, if (ext_feature_isset(ext_features, len,
NL80211_EXT_FEATURE_VLAN_OFFLOAD)) NL80211_EXT_FEATURE_VLAN_OFFLOAD))