wl12xx: AP-mode high level commands
Add commands to start/stop BSS, add/remove STA and configure encryption
keys. Split the encryption commands "set key" and "set default key" into
AP and STA specific versions.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c
index 3b7b8f0..f9c5ce9 100644
--- a/drivers/net/wireless/wl12xx/cmd.c
+++ b/drivers/net/wireless/wl12xx/cmd.c
@@ -36,6 +36,7 @@
#include "wl12xx_80211.h"
#include "cmd.h"
#include "event.h"
+#include "tx.h"
#define WL1271_CMD_FAST_POLL_COUNT 50
@@ -702,9 +703,9 @@
wl->basic_rate);
}
-int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id)
+int wl1271_cmd_set_sta_default_wep_key(struct wl1271 *wl, u8 id)
{
- struct wl1271_cmd_set_keys *cmd;
+ struct wl1271_cmd_set_sta_keys *cmd;
int ret = 0;
wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
@@ -731,11 +732,42 @@
return ret;
}
-int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
+int wl1271_cmd_set_ap_default_wep_key(struct wl1271 *wl, u8 id)
+{
+ struct wl1271_cmd_set_ap_keys *cmd;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_CMD, "cmd set_ap_default_wep_key %d", id);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ cmd->hlid = WL1271_AP_BROADCAST_HLID;
+ cmd->key_id = id;
+ cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
+ cmd->key_action = cpu_to_le16(KEY_SET_ID);
+ cmd->key_type = KEY_WEP;
+
+ ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_warning("cmd set_ap_default_wep_key failed: %d", ret);
+ goto out;
+ }
+
+out:
+ kfree(cmd);
+
+ return ret;
+}
+
+int wl1271_cmd_set_sta_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
u8 key_size, const u8 *key, const u8 *addr,
u32 tx_seq_32, u16 tx_seq_16)
{
- struct wl1271_cmd_set_keys *cmd;
+ struct wl1271_cmd_set_sta_keys *cmd;
int ret = 0;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
@@ -788,6 +820,67 @@
return ret;
}
+int wl1271_cmd_set_ap_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
+ u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
+ u16 tx_seq_16)
+{
+ struct wl1271_cmd_set_ap_keys *cmd;
+ int ret = 0;
+ u8 lid_type;
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ if (hlid == WL1271_AP_BROADCAST_HLID) {
+ if (key_type == KEY_WEP)
+ lid_type = WEP_DEFAULT_LID_TYPE;
+ else
+ lid_type = BROADCAST_LID_TYPE;
+ } else {
+ lid_type = UNICAST_LID_TYPE;
+ }
+
+ wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
+ " hlid: %d", (int)action, (int)id, (int)lid_type,
+ (int)key_type, (int)hlid);
+
+ cmd->lid_key_type = lid_type;
+ cmd->hlid = hlid;
+ cmd->key_action = cpu_to_le16(action);
+ cmd->key_size = key_size;
+ cmd->key_type = key_type;
+ cmd->key_id = id;
+ cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
+ cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
+
+ if (key_type == KEY_TKIP) {
+ /*
+ * We get the key in the following form:
+ * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
+ * but the target is expecting:
+ * TKIP - RX MIC - TX MIC
+ */
+ memcpy(cmd->key, key, 16);
+ memcpy(cmd->key + 16, key + 24, 8);
+ memcpy(cmd->key + 24, key + 16, 8);
+ } else {
+ memcpy(cmd->key, key, key_size);
+ }
+
+ wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
+
+ ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_warning("could not set ap keys");
+ goto out;
+ }
+
+out:
+ kfree(cmd);
+ return ret;
+}
+
int wl1271_cmd_disconnect(struct wl1271 *wl)
{
struct wl1271_cmd_disconnect *cmd;
@@ -850,3 +943,178 @@
out:
return ret;
}
+
+int wl1271_cmd_start_bss(struct wl1271 *wl)
+{
+ struct wl1271_cmd_bss_start *cmd;
+ struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
+ int ret;
+
+ wl1271_debug(DEBUG_CMD, "cmd start bss");
+
+ /*
+ * FIXME: We currently do not support hidden SSID. The real SSID
+ * should be fetched from mac80211 first.
+ */
+ if (wl->ssid_len == 0) {
+ wl1271_warning("Hidden SSID currently not supported for AP");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(cmd->bssid, bss_conf->bssid, ETH_ALEN);
+
+ cmd->aging_period = WL1271_AP_DEF_INACTIV_SEC;
+ cmd->bss_index = WL1271_AP_BSS_INDEX;
+ cmd->global_hlid = WL1271_AP_GLOBAL_HLID;
+ cmd->broadcast_hlid = WL1271_AP_BROADCAST_HLID;
+ cmd->basic_rate_set = cpu_to_le32(wl->basic_rate_set);
+ cmd->beacon_interval = cpu_to_le16(wl->beacon_int);
+ cmd->dtim_interval = bss_conf->dtim_period;
+ cmd->beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
+ cmd->channel = wl->channel;
+ cmd->ssid_len = wl->ssid_len;
+ cmd->ssid_type = SSID_TYPE_PUBLIC;
+ memcpy(cmd->ssid, wl->ssid, wl->ssid_len);
+
+ switch (wl->band) {
+ case IEEE80211_BAND_2GHZ:
+ cmd->band = RADIO_BAND_2_4GHZ;
+ break;
+ case IEEE80211_BAND_5GHZ:
+ cmd->band = RADIO_BAND_5GHZ;
+ break;
+ default:
+ wl1271_warning("bss start - unknown band: %d", (int)wl->band);
+ cmd->band = RADIO_BAND_2_4GHZ;
+ break;
+ }
+
+ ret = wl1271_cmd_send(wl, CMD_BSS_START, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to initiate cmd start bss");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
+
+int wl1271_cmd_stop_bss(struct wl1271 *wl)
+{
+ struct wl1271_cmd_bss_start *cmd;
+ int ret;
+
+ wl1271_debug(DEBUG_CMD, "cmd stop bss");
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ cmd->bss_index = WL1271_AP_BSS_INDEX;
+
+ ret = wl1271_cmd_send(wl, CMD_BSS_STOP, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to initiate cmd stop bss");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
+
+int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid)
+{
+ struct wl1271_cmd_add_sta *cmd;
+ int ret;
+
+ wl1271_debug(DEBUG_CMD, "cmd add sta %d", (int)hlid);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* currently we don't support UAPSD */
+ cmd->sp_len = 0;
+
+ memcpy(cmd->addr, sta->addr, ETH_ALEN);
+ cmd->bss_index = WL1271_AP_BSS_INDEX;
+ cmd->aid = sta->aid;
+ cmd->hlid = hlid;
+
+ /*
+ * FIXME: Does STA support QOS? We need to propagate this info from
+ * hostapd. Currently not that important since this is only used for
+ * sending the correct flavor of null-data packet in response to a
+ * trigger.
+ */
+ cmd->wmm = 0;
+
+ cmd->supported_rates = cpu_to_le32(wl1271_tx_enabled_rates_get(wl,
+ sta->supp_rates[wl->band]));
+
+ wl1271_debug(DEBUG_CMD, "new sta rates: 0x%x", cmd->supported_rates);
+
+ ret = wl1271_cmd_send(wl, CMD_ADD_STA, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to initiate cmd add sta");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
+
+int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid)
+{
+ struct wl1271_cmd_remove_sta *cmd;
+ int ret;
+
+ wl1271_debug(DEBUG_CMD, "cmd remove sta %d", (int)hlid);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ cmd->hlid = hlid;
+ /* We never send a deauth, mac80211 is in charge of this */
+ cmd->reason_opcode = 0;
+ cmd->send_deauth_flag = 0;
+
+ ret = wl1271_cmd_send(wl, CMD_REMOVE_STA, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to initiate cmd remove sta");
+ goto out_free;
+ }
+
+ ret = wl1271_cmd_wait_for_event(wl, STA_REMOVE_COMPLETE_EVENT_ID);
+ if (ret < 0)
+ wl1271_error("cmd remove sta event completion error");
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
diff --git a/drivers/net/wireless/wl12xx/cmd.h b/drivers/net/wireless/wl12xx/cmd.h
index 2a1d9db..072bf3c 100644
--- a/drivers/net/wireless/wl12xx/cmd.h
+++ b/drivers/net/wireless/wl12xx/cmd.h
@@ -54,12 +54,20 @@
int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, __be32 ip_addr);
int wl1271_build_qos_null_data(struct wl1271 *wl);
int wl1271_cmd_build_klv_null_data(struct wl1271 *wl);
-int wl1271_cmd_set_default_wep_key(struct wl1271 *wl, u8 id);
-int wl1271_cmd_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
- u8 key_size, const u8 *key, const u8 *addr,
- u32 tx_seq_32, u16 tx_seq_16);
+int wl1271_cmd_set_sta_default_wep_key(struct wl1271 *wl, u8 id);
+int wl1271_cmd_set_ap_default_wep_key(struct wl1271 *wl, u8 id);
+int wl1271_cmd_set_sta_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
+ u8 key_size, const u8 *key, const u8 *addr,
+ u32 tx_seq_32, u16 tx_seq_16);
+int wl1271_cmd_set_ap_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
+ u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
+ u16 tx_seq_16);
int wl1271_cmd_disconnect(struct wl1271 *wl);
int wl1271_cmd_set_sta_state(struct wl1271 *wl);
+int wl1271_cmd_start_bss(struct wl1271 *wl);
+int wl1271_cmd_stop_bss(struct wl1271 *wl);
+int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid);
+int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid);
enum wl1271_commands {
CMD_INTERROGATE = 1, /*use this to read information elements*/
@@ -98,6 +106,12 @@
CMD_STOP_PERIODIC_SCAN = 51,
CMD_SET_STA_STATE = 52,
+ /* AP mode commands */
+ CMD_BSS_START = 60,
+ CMD_BSS_STOP = 61,
+ CMD_ADD_STA = 62,
+ CMD_REMOVE_STA = 63,
+
NUM_COMMANDS,
MAX_COMMAND_ID = 0xFFFF,
};
@@ -289,7 +303,7 @@
/* FIXME: Add description for key-types */
-struct wl1271_cmd_set_keys {
+struct wl1271_cmd_set_sta_keys {
struct wl1271_cmd_header header;
/* Ignored for default WEP key */
@@ -318,6 +332,57 @@
__le32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
} __packed;
+enum wl1271_cmd_lid_key_type {
+ UNICAST_LID_TYPE = 0,
+ BROADCAST_LID_TYPE = 1,
+ WEP_DEFAULT_LID_TYPE = 2
+};
+
+struct wl1271_cmd_set_ap_keys {
+ struct wl1271_cmd_header header;
+
+ /*
+ * Indicates whether the HLID is a unicast key set
+ * or broadcast key set. A special value 0xFF is
+ * used to indicate that the HLID is on WEP-default
+ * (multi-hlids). of type wl1271_cmd_lid_key_type.
+ */
+ u8 hlid;
+
+ /*
+ * In WEP-default network (hlid == 0xFF) used to
+ * indicate which network STA/IBSS/AP role should be
+ * changed
+ */
+ u8 lid_key_type;
+
+ /*
+ * Key ID - For TKIP and AES key types, this field
+ * indicates the value that should be inserted into
+ * the KeyID field of frames transmitted using this
+ * key entry. For broadcast keys the index use as a
+ * marker for TX/RX key.
+ * For WEP default network (HLID=0xFF), this field
+ * indicates the ID of the key to add or remove.
+ */
+ u8 key_id;
+ u8 reserved_1;
+
+ /* key_action_e */
+ __le16 key_action;
+
+ /* key size in bytes */
+ u8 key_size;
+
+ /* key_type_e */
+ u8 key_type;
+
+ /* This field holds the security key data to add to the STA table */
+ u8 key[MAX_KEY_SIZE];
+ __le16 ac_seq_num16[NUM_ACCESS_CATEGORIES_COPY];
+ __le32 ac_seq_num32[NUM_ACCESS_CATEGORIES_COPY];
+} __packed;
+
struct wl1271_cmd_test_header {
u8 id;
u8 padding[3];
@@ -412,4 +477,68 @@
u8 padding[3];
} __packed;
+enum wl1271_ssid_type {
+ SSID_TYPE_PUBLIC = 0,
+ SSID_TYPE_HIDDEN = 1
+};
+
+struct wl1271_cmd_bss_start {
+ struct wl1271_cmd_header header;
+
+ /* wl1271_ssid_type */
+ u8 ssid_type;
+ u8 ssid_len;
+ u8 ssid[IW_ESSID_MAX_SIZE];
+ u8 padding_1[2];
+
+ /* Basic rate set */
+ __le32 basic_rate_set;
+ /* Aging period in seconds*/
+ __le16 aging_period;
+
+ /*
+ * This field specifies the time between target beacon
+ * transmission times (TBTTs), in time units (TUs).
+ * Valid values are 1 to 1024.
+ */
+ __le16 beacon_interval;
+ u8 bssid[ETH_ALEN];
+ u8 bss_index;
+ /* Radio band */
+ u8 band;
+ u8 channel;
+ /* The host link id for the AP's global queue */
+ u8 global_hlid;
+ /* The host link id for the AP's broadcast queue */
+ u8 broadcast_hlid;
+ /* DTIM count */
+ u8 dtim_interval;
+ /* Beacon expiry time in ms */
+ u8 beacon_expiry;
+ u8 padding_2[3];
+} __packed;
+
+struct wl1271_cmd_add_sta {
+ struct wl1271_cmd_header header;
+
+ u8 addr[ETH_ALEN];
+ u8 hlid;
+ u8 aid;
+ u8 psd_type[NUM_ACCESS_CATEGORIES_COPY];
+ __le32 supported_rates;
+ u8 bss_index;
+ u8 sp_len;
+ u8 wmm;
+ u8 padding1;
+} __packed;
+
+struct wl1271_cmd_remove_sta {
+ struct wl1271_cmd_header header;
+
+ u8 hlid;
+ u8 reason_opcode;
+ u8 send_deauth_flag;
+ u8 padding1;
+} __packed;
+
#endif /* __WL1271_CMD_H__ */
diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c
index f468d71..799c369 100644
--- a/drivers/net/wireless/wl12xx/init.c
+++ b/drivers/net/wireless/wl12xx/init.c
@@ -41,7 +41,7 @@
return ret;
}
- ret = wl1271_cmd_set_default_wep_key(wl, wl->default_key);
+ ret = wl1271_cmd_set_sta_default_wep_key(wl, wl->default_key);
if (ret < 0) {
wl1271_warning("couldn't set default key");
return ret;
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index b40568e..9785b4c 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -1712,7 +1712,7 @@
switch (cmd) {
case SET_KEY:
- ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE,
+ ret = wl1271_cmd_set_sta_key(wl, KEY_ADD_OR_REPLACE,
key_conf->keyidx, key_type,
key_conf->keylen, key_conf->key,
addr, tx_seq_32, tx_seq_16);
@@ -1723,7 +1723,7 @@
/* the default WEP key needs to be configured at least once */
if (key_type == KEY_WEP) {
- ret = wl1271_cmd_set_default_wep_key(wl,
+ ret = wl1271_cmd_set_sta_default_wep_key(wl,
wl->default_key);
if (ret < 0)
goto out_sleep;
@@ -1738,7 +1738,7 @@
if (!is_broadcast_ether_addr(addr))
break;
- ret = wl1271_cmd_set_key(wl, KEY_REMOVE,
+ ret = wl1271_cmd_set_sta_key(wl, KEY_REMOVE,
key_conf->keyidx, key_type,
key_conf->keylen, key_conf->key,
addr, 0, 0);
diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c
index 0cf210d..442a7bd 100644
--- a/drivers/net/wireless/wl12xx/tx.c
+++ b/drivers/net/wireless/wl12xx/tx.c
@@ -170,7 +170,7 @@
/* FIXME: do we have to do this if we're not using WEP? */
if (unlikely(wl->default_key != idx)) {
- ret = wl1271_cmd_set_default_wep_key(wl, idx);
+ ret = wl1271_cmd_set_sta_default_wep_key(wl, idx);
if (ret < 0)
return ret;
wl->default_key = idx;
diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h
index c3c30b3..340153f 100644
--- a/drivers/net/wireless/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/wl12xx/wl12xx.h
@@ -129,6 +129,14 @@
#define WL1271_DEFAULT_BEACON_INT 100
#define WL1271_DEFAULT_DTIM_PERIOD 1
+#define WL1271_AP_GLOBAL_HLID 0
+#define WL1271_AP_BROADCAST_HLID 1
+#define WL1271_AP_STA_HLID_START 2
+
+#define WL1271_AP_BSS_INDEX 0
+#define WL1271_AP_DEF_INACTIV_SEC 300
+#define WL1271_AP_DEF_BEACON_EXP 20
+
#define ACX_TX_DESCRIPTORS 32
#define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)