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v811_spc009/device/linaro/poplar/wifi/wifi_hal/cpp_bindings.cpp

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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Portions copyright (C) 2017 Broadcom Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <linux/rtnetlink.h>
#include <netpacket/packet.h>
#include <linux/filter.h>
#include <linux/errqueue.h>
#include <linux/pkt_sched.h>
#include <netlink/object-api.h>
#include <netlink/netlink.h>
#include <netlink/socket.h>
#include <netlink/handlers.h>
#include <ctype.h>
#include "wifi_hal.h"
#include "common.h"
#include "cpp_bindings.h"
void appendFmt(char *buf, int &offset, const char *fmt, ...)
{
va_list params;
va_start(params, fmt);
offset += vsprintf(buf + offset, fmt, params);
va_end(params);
}
#define C2S(x) case x: return #x;
static const char *cmdToString(int cmd)
{
switch (cmd) {
C2S(NL80211_CMD_UNSPEC)
C2S(NL80211_CMD_GET_WIPHY)
C2S(NL80211_CMD_SET_WIPHY)
C2S(NL80211_CMD_NEW_WIPHY)
C2S(NL80211_CMD_DEL_WIPHY)
C2S(NL80211_CMD_GET_INTERFACE)
C2S(NL80211_CMD_SET_INTERFACE)
C2S(NL80211_CMD_NEW_INTERFACE)
C2S(NL80211_CMD_DEL_INTERFACE)
C2S(NL80211_CMD_GET_KEY)
C2S(NL80211_CMD_SET_KEY)
C2S(NL80211_CMD_NEW_KEY)
C2S(NL80211_CMD_DEL_KEY)
C2S(NL80211_CMD_GET_BEACON)
C2S(NL80211_CMD_SET_BEACON)
C2S(NL80211_CMD_START_AP)
C2S(NL80211_CMD_STOP_AP)
C2S(NL80211_CMD_GET_STATION)
C2S(NL80211_CMD_SET_STATION)
C2S(NL80211_CMD_NEW_STATION)
C2S(NL80211_CMD_DEL_STATION)
C2S(NL80211_CMD_GET_MPATH)
C2S(NL80211_CMD_SET_MPATH)
C2S(NL80211_CMD_NEW_MPATH)
C2S(NL80211_CMD_DEL_MPATH)
C2S(NL80211_CMD_SET_BSS)
C2S(NL80211_CMD_SET_REG)
C2S(NL80211_CMD_REQ_SET_REG)
C2S(NL80211_CMD_GET_MESH_CONFIG)
C2S(NL80211_CMD_SET_MESH_CONFIG)
C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
C2S(NL80211_CMD_GET_REG)
C2S(NL80211_CMD_GET_SCAN)
C2S(NL80211_CMD_TRIGGER_SCAN)
C2S(NL80211_CMD_NEW_SCAN_RESULTS)
C2S(NL80211_CMD_SCAN_ABORTED)
C2S(NL80211_CMD_REG_CHANGE)
C2S(NL80211_CMD_AUTHENTICATE)
C2S(NL80211_CMD_ASSOCIATE)
C2S(NL80211_CMD_DEAUTHENTICATE)
C2S(NL80211_CMD_DISASSOCIATE)
C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
C2S(NL80211_CMD_REG_BEACON_HINT)
C2S(NL80211_CMD_JOIN_IBSS)
C2S(NL80211_CMD_LEAVE_IBSS)
C2S(NL80211_CMD_TESTMODE)
C2S(NL80211_CMD_CONNECT)
C2S(NL80211_CMD_ROAM)
C2S(NL80211_CMD_DISCONNECT)
C2S(NL80211_CMD_SET_WIPHY_NETNS)
C2S(NL80211_CMD_GET_SURVEY)
C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
C2S(NL80211_CMD_SET_PMKSA)
C2S(NL80211_CMD_DEL_PMKSA)
C2S(NL80211_CMD_FLUSH_PMKSA)
C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
C2S(NL80211_CMD_REGISTER_FRAME)
C2S(NL80211_CMD_FRAME)
C2S(NL80211_CMD_FRAME_TX_STATUS)
C2S(NL80211_CMD_SET_POWER_SAVE)
C2S(NL80211_CMD_GET_POWER_SAVE)
C2S(NL80211_CMD_SET_CQM)
C2S(NL80211_CMD_NOTIFY_CQM)
C2S(NL80211_CMD_SET_CHANNEL)
C2S(NL80211_CMD_SET_WDS_PEER)
C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
C2S(NL80211_CMD_JOIN_MESH)
C2S(NL80211_CMD_LEAVE_MESH)
C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
C2S(NL80211_CMD_GET_WOWLAN)
C2S(NL80211_CMD_SET_WOWLAN)
C2S(NL80211_CMD_START_SCHED_SCAN)
C2S(NL80211_CMD_STOP_SCHED_SCAN)
C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
C2S(NL80211_CMD_PMKSA_CANDIDATE)
C2S(NL80211_CMD_TDLS_OPER)
C2S(NL80211_CMD_TDLS_MGMT)
C2S(NL80211_CMD_UNEXPECTED_FRAME)
C2S(NL80211_CMD_PROBE_CLIENT)
C2S(NL80211_CMD_REGISTER_BEACONS)
C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
C2S(NL80211_CMD_SET_NOACK_MAP)
C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
C2S(NL80211_CMD_START_P2P_DEVICE)
C2S(NL80211_CMD_STOP_P2P_DEVICE)
C2S(NL80211_CMD_CONN_FAILED)
C2S(NL80211_CMD_SET_MCAST_RATE)
C2S(NL80211_CMD_SET_MAC_ACL)
C2S(NL80211_CMD_RADAR_DETECT)
C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
C2S(NL80211_CMD_UPDATE_FT_IES)
C2S(NL80211_CMD_FT_EVENT)
C2S(NL80211_CMD_CRIT_PROTOCOL_START)
C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
C2S(NL80211_CMD_GET_COALESCE)
C2S(NL80211_CMD_SET_COALESCE)
C2S(NL80211_CMD_CHANNEL_SWITCH)
C2S(NL80211_CMD_VENDOR)
C2S(NL80211_CMD_SET_QOS_MAP)
default:
return "NL80211_CMD_UNKNOWN";
}
}
const char *attributeToString(int attribute)
{
switch (attribute) {
C2S(NL80211_ATTR_UNSPEC)
C2S(NL80211_ATTR_WIPHY)
C2S(NL80211_ATTR_WIPHY_NAME)
C2S(NL80211_ATTR_IFINDEX)
C2S(NL80211_ATTR_IFNAME)
C2S(NL80211_ATTR_IFTYPE)
C2S(NL80211_ATTR_MAC)
C2S(NL80211_ATTR_KEY_DATA)
C2S(NL80211_ATTR_KEY_IDX)
C2S(NL80211_ATTR_KEY_CIPHER)
C2S(NL80211_ATTR_KEY_SEQ)
C2S(NL80211_ATTR_KEY_DEFAULT)
C2S(NL80211_ATTR_BEACON_INTERVAL)
C2S(NL80211_ATTR_DTIM_PERIOD)
C2S(NL80211_ATTR_BEACON_HEAD)
C2S(NL80211_ATTR_BEACON_TAIL)
C2S(NL80211_ATTR_STA_AID)
C2S(NL80211_ATTR_STA_FLAGS)
C2S(NL80211_ATTR_STA_LISTEN_INTERVAL)
C2S(NL80211_ATTR_STA_SUPPORTED_RATES)
C2S(NL80211_ATTR_STA_VLAN)
C2S(NL80211_ATTR_STA_INFO)
C2S(NL80211_ATTR_WIPHY_BANDS)
C2S(NL80211_ATTR_MNTR_FLAGS)
C2S(NL80211_ATTR_MESH_ID)
C2S(NL80211_ATTR_STA_PLINK_ACTION)
C2S(NL80211_ATTR_MPATH_NEXT_HOP)
C2S(NL80211_ATTR_MPATH_INFO)
C2S(NL80211_ATTR_BSS_CTS_PROT)
C2S(NL80211_ATTR_BSS_SHORT_PREAMBLE)
C2S(NL80211_ATTR_BSS_SHORT_SLOT_TIME)
C2S(NL80211_ATTR_HT_CAPABILITY)
C2S(NL80211_ATTR_SUPPORTED_IFTYPES)
C2S(NL80211_ATTR_REG_ALPHA2)
C2S(NL80211_ATTR_REG_RULES)
C2S(NL80211_ATTR_MESH_CONFIG)
C2S(NL80211_ATTR_BSS_BASIC_RATES)
C2S(NL80211_ATTR_WIPHY_TXQ_PARAMS)
C2S(NL80211_ATTR_WIPHY_FREQ)
C2S(NL80211_ATTR_WIPHY_CHANNEL_TYPE)
C2S(NL80211_ATTR_KEY_DEFAULT_MGMT)
C2S(NL80211_ATTR_MGMT_SUBTYPE)
C2S(NL80211_ATTR_IE)
C2S(NL80211_ATTR_MAX_NUM_SCAN_SSIDS)
C2S(NL80211_ATTR_SCAN_FREQUENCIES)
C2S(NL80211_ATTR_SCAN_SSIDS)
C2S(NL80211_ATTR_GENERATION) /* replaces old SCAN_GENERATION */
C2S(NL80211_ATTR_BSS)
C2S(NL80211_ATTR_REG_INITIATOR)
C2S(NL80211_ATTR_REG_TYPE)
C2S(NL80211_ATTR_SUPPORTED_COMMANDS)
C2S(NL80211_ATTR_FRAME)
C2S(NL80211_ATTR_SSID)
C2S(NL80211_ATTR_AUTH_TYPE)
C2S(NL80211_ATTR_REASON_CODE)
C2S(NL80211_ATTR_KEY_TYPE)
C2S(NL80211_ATTR_MAX_SCAN_IE_LEN)
C2S(NL80211_ATTR_CIPHER_SUITES)
C2S(NL80211_ATTR_FREQ_BEFORE)
C2S(NL80211_ATTR_FREQ_AFTER)
C2S(NL80211_ATTR_FREQ_FIXED)
C2S(NL80211_ATTR_WIPHY_RETRY_SHORT)
C2S(NL80211_ATTR_WIPHY_RETRY_LONG)
C2S(NL80211_ATTR_WIPHY_FRAG_THRESHOLD)
C2S(NL80211_ATTR_WIPHY_RTS_THRESHOLD)
C2S(NL80211_ATTR_TIMED_OUT)
C2S(NL80211_ATTR_USE_MFP)
C2S(NL80211_ATTR_STA_FLAGS2)
C2S(NL80211_ATTR_CONTROL_PORT)
C2S(NL80211_ATTR_TESTDATA)
C2S(NL80211_ATTR_PRIVACY)
C2S(NL80211_ATTR_DISCONNECTED_BY_AP)
C2S(NL80211_ATTR_STATUS_CODE)
C2S(NL80211_ATTR_CIPHER_SUITES_PAIRWISE)
C2S(NL80211_ATTR_CIPHER_SUITE_GROUP)
C2S(NL80211_ATTR_WPA_VERSIONS)
C2S(NL80211_ATTR_AKM_SUITES)
C2S(NL80211_ATTR_REQ_IE)
C2S(NL80211_ATTR_RESP_IE)
C2S(NL80211_ATTR_PREV_BSSID)
C2S(NL80211_ATTR_KEY)
C2S(NL80211_ATTR_KEYS)
C2S(NL80211_ATTR_PID)
C2S(NL80211_ATTR_4ADDR)
C2S(NL80211_ATTR_SURVEY_INFO)
C2S(NL80211_ATTR_PMKID)
C2S(NL80211_ATTR_MAX_NUM_PMKIDS)
C2S(NL80211_ATTR_DURATION)
C2S(NL80211_ATTR_COOKIE)
C2S(NL80211_ATTR_WIPHY_COVERAGE_CLASS)
C2S(NL80211_ATTR_TX_RATES)
C2S(NL80211_ATTR_FRAME_MATCH)
C2S(NL80211_ATTR_ACK)
C2S(NL80211_ATTR_PS_STATE)
C2S(NL80211_ATTR_CQM)
C2S(NL80211_ATTR_LOCAL_STATE_CHANGE)
C2S(NL80211_ATTR_AP_ISOLATE)
C2S(NL80211_ATTR_WIPHY_TX_POWER_SETTING)
C2S(NL80211_ATTR_WIPHY_TX_POWER_LEVEL)
C2S(NL80211_ATTR_TX_FRAME_TYPES)
C2S(NL80211_ATTR_RX_FRAME_TYPES)
C2S(NL80211_ATTR_FRAME_TYPE)
C2S(NL80211_ATTR_CONTROL_PORT_ETHERTYPE)
C2S(NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)
C2S(NL80211_ATTR_SUPPORT_IBSS_RSN)
C2S(NL80211_ATTR_WIPHY_ANTENNA_TX)
C2S(NL80211_ATTR_WIPHY_ANTENNA_RX)
C2S(NL80211_ATTR_MCAST_RATE)
C2S(NL80211_ATTR_OFFCHANNEL_TX_OK)
C2S(NL80211_ATTR_BSS_HT_OPMODE)
C2S(NL80211_ATTR_KEY_DEFAULT_TYPES)
C2S(NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION)
C2S(NL80211_ATTR_MESH_SETUP)
C2S(NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX)
C2S(NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX)
C2S(NL80211_ATTR_SUPPORT_MESH_AUTH)
C2S(NL80211_ATTR_STA_PLINK_STATE)
C2S(NL80211_ATTR_WOWLAN_TRIGGERS)
C2S(NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED)
C2S(NL80211_ATTR_SCHED_SCAN_INTERVAL)
C2S(NL80211_ATTR_INTERFACE_COMBINATIONS)
C2S(NL80211_ATTR_SOFTWARE_IFTYPES)
C2S(NL80211_ATTR_REKEY_DATA)
C2S(NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS)
C2S(NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN)
C2S(NL80211_ATTR_SCAN_SUPP_RATES)
C2S(NL80211_ATTR_HIDDEN_SSID)
C2S(NL80211_ATTR_IE_PROBE_RESP)
C2S(NL80211_ATTR_IE_ASSOC_RESP)
C2S(NL80211_ATTR_STA_WME)
C2S(NL80211_ATTR_SUPPORT_AP_UAPSD)
C2S(NL80211_ATTR_ROAM_SUPPORT)
C2S(NL80211_ATTR_SCHED_SCAN_MATCH)
C2S(NL80211_ATTR_MAX_MATCH_SETS)
C2S(NL80211_ATTR_PMKSA_CANDIDATE)
C2S(NL80211_ATTR_TX_NO_CCK_RATE)
C2S(NL80211_ATTR_TDLS_ACTION)
C2S(NL80211_ATTR_TDLS_DIALOG_TOKEN)
C2S(NL80211_ATTR_TDLS_OPERATION)
C2S(NL80211_ATTR_TDLS_SUPPORT)
C2S(NL80211_ATTR_TDLS_EXTERNAL_SETUP)
C2S(NL80211_ATTR_DEVICE_AP_SME)
C2S(NL80211_ATTR_DONT_WAIT_FOR_ACK)
C2S(NL80211_ATTR_FEATURE_FLAGS)
C2S(NL80211_ATTR_PROBE_RESP_OFFLOAD)
C2S(NL80211_ATTR_PROBE_RESP)
C2S(NL80211_ATTR_DFS_REGION)
C2S(NL80211_ATTR_DISABLE_HT)
C2S(NL80211_ATTR_HT_CAPABILITY_MASK)
C2S(NL80211_ATTR_NOACK_MAP)
C2S(NL80211_ATTR_INACTIVITY_TIMEOUT)
C2S(NL80211_ATTR_RX_SIGNAL_DBM)
C2S(NL80211_ATTR_BG_SCAN_PERIOD)
C2S(NL80211_ATTR_WDEV)
C2S(NL80211_ATTR_USER_REG_HINT_TYPE)
C2S(NL80211_ATTR_CONN_FAILED_REASON)
C2S(NL80211_ATTR_SAE_DATA)
C2S(NL80211_ATTR_VHT_CAPABILITY)
C2S(NL80211_ATTR_SCAN_FLAGS)
C2S(NL80211_ATTR_CHANNEL_WIDTH)
C2S(NL80211_ATTR_CENTER_FREQ1)
C2S(NL80211_ATTR_CENTER_FREQ2)
C2S(NL80211_ATTR_P2P_CTWINDOW)
C2S(NL80211_ATTR_P2P_OPPPS)
C2S(NL80211_ATTR_LOCAL_MESH_POWER_MODE)
C2S(NL80211_ATTR_ACL_POLICY)
C2S(NL80211_ATTR_MAC_ADDRS)
C2S(NL80211_ATTR_MAC_ACL_MAX)
C2S(NL80211_ATTR_RADAR_EVENT)
C2S(NL80211_ATTR_EXT_CAPA)
C2S(NL80211_ATTR_EXT_CAPA_MASK)
C2S(NL80211_ATTR_STA_CAPABILITY)
C2S(NL80211_ATTR_STA_EXT_CAPABILITY)
C2S(NL80211_ATTR_PROTOCOL_FEATURES)
C2S(NL80211_ATTR_SPLIT_WIPHY_DUMP)
C2S(NL80211_ATTR_DISABLE_VHT)
C2S(NL80211_ATTR_VHT_CAPABILITY_MASK)
C2S(NL80211_ATTR_MDID)
C2S(NL80211_ATTR_IE_RIC)
C2S(NL80211_ATTR_CRIT_PROT_ID)
C2S(NL80211_ATTR_MAX_CRIT_PROT_DURATION)
C2S(NL80211_ATTR_PEER_AID)
C2S(NL80211_ATTR_COALESCE_RULE)
C2S(NL80211_ATTR_CH_SWITCH_COUNT)
C2S(NL80211_ATTR_CH_SWITCH_BLOCK_TX)
C2S(NL80211_ATTR_CSA_IES)
C2S(NL80211_ATTR_CSA_C_OFF_BEACON)
C2S(NL80211_ATTR_CSA_C_OFF_PRESP)
C2S(NL80211_ATTR_RXMGMT_FLAGS)
C2S(NL80211_ATTR_STA_SUPPORTED_CHANNELS)
C2S(NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES)
C2S(NL80211_ATTR_HANDLE_DFS)
C2S(NL80211_ATTR_SUPPORT_5_MHZ)
C2S(NL80211_ATTR_SUPPORT_10_MHZ)
C2S(NL80211_ATTR_OPMODE_NOTIF)
C2S(NL80211_ATTR_VENDOR_ID)
C2S(NL80211_ATTR_VENDOR_SUBCMD)
C2S(NL80211_ATTR_VENDOR_DATA)
C2S(NL80211_ATTR_VENDOR_EVENTS)
C2S(NL80211_ATTR_QOS_MAP)
default:
return "NL80211_ATTR_UNKNOWN";
}
}
void WifiEvent::log() {
parse();
byte *data = (byte *)genlmsg_attrdata(mHeader, 0);
int len = genlmsg_attrlen(mHeader, 0);
ALOGD("cmd = %s, len = %d", get_cmdString(), len);
ALOGD("vendor_id = %04x, vendor_subcmd = %d", get_vendor_id(), get_vendor_subcmd());
for (int i = 0; i < len; i += 16) {
char line[81];
int linelen = min(16, len - i);
int offset = 0;
appendFmt(line, offset, "%02x", data[i]);
for (int j = 1; j < linelen; j++) {
appendFmt(line, offset, " %02x", data[i+j]);
}
for (int j = linelen; j < 16; j++) {
appendFmt(line, offset, " ");
}
line[23] = '-';
appendFmt(line, offset, " ");
for (int j = 0; j < linelen; j++) {
if (isprint(data[i+j])) {
appendFmt(line, offset, "%c", data[i+j]);
} else {
appendFmt(line, offset, "-");
}
}
ALOGD("%s", line);
}
for (unsigned i = 0; i < NL80211_ATTR_MAX_INTERNAL; i++) {
if (mAttributes[i] != NULL) {
ALOGD("found attribute %s", attributeToString(i));
}
}
ALOGD("-- End of message --");
}
const char *WifiEvent::get_cmdString() {
return cmdToString(get_cmd());
}
int WifiEvent::parse() {
if (mHeader != NULL) {
return WIFI_SUCCESS;
}
mHeader = (genlmsghdr *)nlmsg_data(nlmsg_hdr(mMsg));
int result = nla_parse(mAttributes, NL80211_ATTR_MAX_INTERNAL, genlmsg_attrdata(mHeader, 0),
genlmsg_attrlen(mHeader, 0), NULL);
// ALOGD("event len = %d", nlmsg_hdr(mMsg)->nlmsg_len);
return result;
}
int WifiRequest::create(int family, uint8_t cmd, int flags, int hdrlen) {
destroy();
mMsg = nlmsg_alloc();
if (mMsg != NULL) {
genlmsg_put(mMsg, /* pid = */ 0, /* seq = */ 0, family,
hdrlen, flags, cmd, /* version = */ 0);
return WIFI_SUCCESS;
} else {
return WIFI_ERROR_OUT_OF_MEMORY;
}
}
int WifiRequest::create(uint32_t id, int subcmd) {
int res = create(NL80211_CMD_VENDOR);
if (res < 0) {
return res;
}
res = put_u32(NL80211_ATTR_VENDOR_ID, id);
if (res < 0) {
return res;
}
res = put_u32(NL80211_ATTR_VENDOR_SUBCMD, subcmd);
if (res < 0) {
return res;
}
if (mIface != -1) {
res = set_iface_id(mIface);
}
return res;
}
static int no_seq_check(struct nl_msg *msg, void *arg)
{
return NL_OK;
}
int WifiCommand::requestResponse() {
int err = create(); /* create the message */
if (err < 0) {
return err;
}
return requestResponse(mMsg);
}
int WifiCommand::requestResponse(WifiRequest& request) {
int err = 0;
struct nl_cb *cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!cb)
goto out;
err = nl_send_auto_complete(mInfo->cmd_sock, request.getMessage()); /* send message */
if (err < 0)
goto out;
err = 1;
nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, response_handler, this);
while (err > 0) { /* wait for reply */
int res = nl_recvmsgs(mInfo->cmd_sock, cb);
if (res) {
ALOGE("nl80211: %s->nl_recvmsgs failed: %d", __func__, res);
}
}
out:
nl_cb_put(cb);
return err;
}
int WifiCommand::requestEvent(int cmd) {
ALOGD("requesting event %d", cmd);
int res = wifi_register_handler(wifiHandle(), cmd, event_handler, this);
if (res < 0) {
return res;
}
res = create(); /* create the message */
if (res < 0)
goto out;
ALOGD("waiting for response %d", cmd);
res = nl_send_auto_complete(mInfo->cmd_sock, mMsg.getMessage()); /* send message */
if (res < 0)
goto out;
ALOGD("waiting for event %d", cmd);
res = mCondition.wait();
if (res < 0)
goto out;
out:
wifi_unregister_handler(wifiHandle(), cmd);
return res;
}
int WifiCommand::requestVendorEvent(uint32_t id, int subcmd) {
int res = wifi_register_vendor_handler(wifiHandle(), id, subcmd, event_handler, this);
if (res < 0) {
return res;
}
res = create(); /* create the message */
if (res < 0)
goto out;
res = nl_send_auto_complete(mInfo->cmd_sock, mMsg.getMessage()); /* send message */
if (res < 0)
goto out;
res = mCondition.wait();
if (res < 0)
goto out;
out:
wifi_unregister_vendor_handler(wifiHandle(), id, subcmd);
return res;
}
/* Event handlers */
int WifiCommand::response_handler(struct nl_msg *msg, void *arg) {
// ALOGD("response_handler called");
WifiCommand *cmd = (WifiCommand *)arg;
WifiEvent reply(msg);
int res = reply.parse();
if (res < 0) {
ALOGE("Failed to parse reply message = %d", res);
return NL_SKIP;
} else {
// reply.log();
return cmd->handleResponse(reply);
}
}
int WifiCommand::event_handler(struct nl_msg *msg, void *arg) {
WifiCommand *cmd = (WifiCommand *)arg;
WifiEvent event(msg);
int res = event.parse();
if (res < 0) {
ALOGE("Failed to parse event = %d", res);
res = NL_SKIP;
} else {
res = cmd->handleEvent(event);
}
cmd->mCondition.signal();
return res;
}
/* Other event handlers */
int WifiCommand::valid_handler(struct nl_msg *msg, void *arg) {
// ALOGD("valid_handler called");
int *err = (int *)arg;
*err = 0;
return NL_SKIP;
}
int WifiCommand::ack_handler(struct nl_msg *msg, void *arg) {
// ALOGD("ack_handler called");
int *err = (int *)arg;
*err = 0;
return NL_STOP;
}
int WifiCommand::finish_handler(struct nl_msg *msg, void *arg) {
// ALOGD("finish_handler called");
int *ret = (int *)arg;
*ret = 0;
return NL_SKIP;
}
int WifiCommand::error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg) {
int *ret = (int *)arg;
*ret = err->error;
// ALOGD("error_handler received : %d", err->error);
return NL_SKIP;
}
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