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wifi_nan_data_path.cpp
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wifi_nan_data_path.cpp
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#include <stdint.h>
#include <stddef.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 "sync.h"
#include <utils/Log.h>
#include "wifi_hal.h"
#include "common.h"
#include "cpp_bindings.h"
#include "nan_data.h"
#include "nan_common.h"
nlattr *NanDataCommand::newNlVendorMsg(int subcmd, WifiRequest &request) {
int result = request.create(GOOGLE_OUI, subcmd);
if (result != WIFI_SUCCESS) {
ALOGE("newNlVendorMsg:Failed to create WifiRequest (%d)", result);
return NULL;
}
nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA);
if (!data) {
ALOGE("newNlVendorMsg: request.attr_start fail");
return NULL;
}
return data;
}
int NanDataCommand::dataInterfaceCreateDelete(u16 id, char *ifaceName, int subcmd, WifiRequest &request) {
int result;
nlattr *data = newNlVendorMsg(subcmd, request);
if (!data)
return WIFI_ERROR_OUT_OF_MEMORY;
result = request.put_u8(NAN_REQ_ATTR_DATA_INTERFACE_NAME_LEN, strlen(ifaceName));
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ifaceName_len");
result = request.put(NAN_REQ_ATTR_DATA_INTERFACE_NAME, ifaceName, strlen(ifaceName));
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ifaceName");
CHECK_CONFIG_PUT_16_RETURN_FAIL(1, id, NAN_REQ_ATTR_HAL_TRANSACTION_ID, request, result, "dataInterfacecreateDelete:Failed to put transaction id");
request.attr_end(data);
return WIFI_SUCCESS;
}
int NanDataCommand::dataRequestInitiate(u16 id, NanDataPathInitiatorRequest* msg, WifiRequest &request) {
int result;
nlattr *data = newNlVendorMsg(SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_REQUEST_INITIATOR, request);
if (!data)
return WIFI_ERROR_OUT_OF_MEMORY;
result = request.put_u32(NAN_REQ_ATTR_REQ_INSTANCE_ID, msg->requestor_instance_id);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put req_instance_id");
result = request.put_u8(NAN_REQ_ATTR_CHAN_REQ_TYPE, msg->channel_request_type);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put channel_request_type");
result = request.put_u32(NAN_REQ_ATTR_CHAN, msg->channel);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put channel");
result = request.put(NAN_REQ_ATTR_MAC_ADDR_VAL, msg->peer_disc_mac_addr, NAN_MAC_ADDR_LEN);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put peer_disc_mac_addr");
result = request.put_u8(NAN_REQ_ATTR_DATA_INTERFACE_NAME_LEN, IFNAMSIZ+1);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ifaceName_len");
result = request.put(NAN_REQ_ATTR_DATA_INTERFACE_NAME, msg->ndp_iface, IFNAMSIZ+1);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_iface");
result = request.put_u8(NAN_REQ_ATTR_SDEA_PARAM_SECURITY_CFG, msg->ndp_cfg.security_cfg);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put security_cfg");
result = request.put_u8(NAN_REQ_ATTR_SDEA_PARAM_QOS_CFG, msg->ndp_cfg.qos_cfg);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put qos_cfg");
if(msg->app_info.ndp_app_info_len){
result = request.put_u16(NAN_REQ_ATTR_APP_INFO_LEN, msg->app_info.ndp_app_info_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_app_info_len");
result = request.put(NAN_REQ_ATTR_APP_INFO, msg->app_info.ndp_app_info, msg->app_info.ndp_app_info_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_app_info");
}
if (msg->service_name_len) {
result = request.put_u32(NAN_REQ_ATTR_SERVICE_NAME_LEN, msg->service_name_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put service_name_len");
result = request.put(NAN_REQ_ATTR_SERVICE_NAME, msg->service_name, msg->service_name_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put req_instance_id");
}
result = putSecurityInfo(msg->cipher_type, &msg->key_info, 0, NULL, &request);
CHECK_CONFIG_PUT_16_RETURN_FAIL(1, id, NAN_REQ_ATTR_HAL_TRANSACTION_ID, request, result, "dataRequestInitiate:Failed to put transaction id");
request.attr_end(data);
return result;
}
int NanDataCommand::dataIndicationResponse(u16 id, NanDataPathIndicationResponse* msg, WifiRequest &request) {
int result;
nlattr *data = newNlVendorMsg(SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INDICATION_RESPONSE, request);
if (!data)
return WIFI_ERROR_OUT_OF_MEMORY;
result = request.put_u32(NAN_REQ_ATTR_NDP_INSTANCE_ID, msg->ndp_instance_id);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_instance_id");
result = request.put_u8(NAN_REQ_ATTR_DATA_INTERFACE_NAME_LEN, IFNAMSIZ+1);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ifaceName_len");
result = request.put(NAN_REQ_ATTR_DATA_INTERFACE_NAME, msg->ndp_iface, IFNAMSIZ+1);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_iface");
result = request.put_u8(NAN_REQ_ATTR_SDEA_PARAM_SECURITY_CFG, msg->ndp_cfg.security_cfg);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put security_cfg");
result = request.put_u8(NAN_REQ_ATTR_SDEA_PARAM_QOS_CFG, msg->ndp_cfg.qos_cfg);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put qos_cfg");
if(msg->app_info.ndp_app_info_len){
result = request.put_u16(NAN_REQ_ATTR_APP_INFO_LEN, msg->app_info.ndp_app_info_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_app_info_len");
result = request.put(NAN_REQ_ATTR_APP_INFO, msg->app_info.ndp_app_info, msg->app_info.ndp_app_info_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_app_info");
}
result = request.put_u8(NAN_REQ_ATTR_NDP_RESPONSE_CODE, msg->rsp_code);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put rsp_code");
if (msg->service_name_len) {
result = request.put_u32(NAN_REQ_ATTR_SERVICE_NAME_LEN, msg->service_name_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put service_name_len");
result = request.put(NAN_REQ_ATTR_SERVICE_NAME, msg->service_name, msg->service_name_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put req_instance_id");
}
result = putSecurityInfo(msg->cipher_type, &msg->key_info, 0, NULL, &request);
CHECK_CONFIG_PUT_16_RETURN_FAIL(1, id, NAN_REQ_ATTR_HAL_TRANSACTION_ID, request, result, "dataIndicationResponse:Failed to put transaction id");
request.attr_end(data);
return result;
}
int NanDataCommand::dataEnd(u16 id, NanDataPathEndRequest* msg, WifiRequest &request) {
int result, i;
nlattr *data = newNlVendorMsg(SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_END, request);
if (!data)
return WIFI_ERROR_UNKNOWN;
for(i=0; i<msg->num_ndp_instances; i++) {
result = request.put_u32(NAN_REQ_ATTR_NDP_INSTANCE_ID, msg->ndp_instance_id[i]);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "Failed to put ndp_instance_id");
}
CHECK_CONFIG_PUT_16_RETURN_FAIL(1, id, NAN_REQ_ATTR_HAL_TRANSACTION_ID, request, result, "dataEnd:Failed to put transaction id");
request.attr_end(data);
return result;
}
void NanDataCommand::dataInterfaceCreated(char *ifaceName) {
int i;
for(i=0; i<SLSI_NAN_MAX_NDP; i++)
if (m_ifaceName[i][0] == 0) {
strncpy(ifaceName, m_ifaceName[i], IFNAMSIZ);
m_data_iface_count++;
return;
}
}
void NanDataCommand::dataInterfaceDeleted(char *ifaceName) {
int i;
for(i=0; i<SLSI_NAN_MAX_NDP; i++)
if (strncmp(m_ifaceName[i], ifaceName, IFNAMSIZ)== 0) {
memset(m_ifaceName[i], 0, IFNAMSIZ);
m_data_iface_count--;
return;
}
}
void NanDataCommand::dataRequestInitiateSuccess(NanDataPathInitiatorRequest *msg) {
int i;
for(i=0; i<SLSI_NAN_MAX_NDP; i++)
if(m_ndp_instance_id[i] == 0) {
m_ndp_instance_id[i] = msg->requestor_instance_id;
m_ndp_count++;
return;
}
}
void NanDataCommand::dataIndicationResponseSuccess(NanDataPathIndicationResponse *msg) {
int i;
for(i=0; i<SLSI_NAN_MAX_NDP; i++)
if(m_ndp_instance_id[i] == 0) {
m_ndp_instance_id[i] = msg->ndp_instance_id;
m_ndp_count++;
return;
}
}
void NanDataCommand::dataEndSuccess(NanDataPathEndRequest *msg) {
int i, j;
for(i=0; i<msg->num_ndp_instances; i++)
for(j=0; j<SLSI_NAN_MAX_NDP; j++)
if(m_ndp_instance_id[j] == msg->ndp_instance_id[i]) {
m_ndp_instance_id[j] = 0;
m_ndp_count--;
}
}
void NanDataCommand::processNdpChannelInfo(nlattr *nl_data, NanChannelInfo &channel_info) {
for(nl_iterator nl_itr(nl_data); nl_itr.has_next(); nl_itr.next()) {
switch(nl_itr.get_type()) {
case NAN_EVT_ATTR_CHANNEL:
channel_info.channel = nl_itr.get_u32();
break;
case NAN_EVT_ATTR_CHANNEL_BW:
channel_info.bandwidth = nl_itr.get_u32();
break;
case NAN_EVT_ATTR_CHANNEL_NSS:
channel_info.nss = nl_itr.get_u32();
break;
}
}
}
int NanDataCommand::processNdpReqEvent(WifiEvent &event, NanCallbackHandler &callbackEventHandler) {
NanDataPathRequestInd ind;
memset(&ind,0,sizeof(NanDataPathRequestInd));
nlattr *vendor_data = event.get_attribute(NL80211_ATTR_VENDOR_DATA);
for(nl_iterator nl_itr(vendor_data); nl_itr.has_next(); nl_itr.next()) {
switch(nl_itr.get_type()) {
case NAN_EVT_ATTR_SERVICE_INSTANCE_ID:
ind.service_instance_id = nl_itr.get_u16();
break;
case NAN_EVT_ATTR_MATCH_ADDR:
memcpy(ind.peer_disc_mac_addr, nl_itr.get_data(), ETHER_ADDR_LEN);
break;
case NAN_EVT_ATTR_NDP_INSTANCE_ID:
ind.ndp_instance_id = nl_itr.get_u32();
break;
case NAN_EVT_ATTR_SDEA_PARAM_SECURITY_CONFIG:
ind.ndp_cfg.security_cfg = (NanDataPathSecurityCfgStatus)nl_itr.get_u32();
break;
case NAN_EVT_ATTR_SDEA_PARAM_QOS_CFG:
ind.ndp_cfg.qos_cfg = (NanDataPathQosCfg)nl_itr.get_u32();
break;
case NAN_EVT_ATTR_APP_INFO_LEN:
ind.app_info.ndp_app_info_len = nl_itr.get_u16();
break;
case NAN_EVT_ATTR_APP_INFO:
memcpy(ind.app_info.ndp_app_info, nl_itr.get_data(), ind.app_info.ndp_app_info_len);
break;
}
}
if(callbackEventHandler.EventDataRequest)
callbackEventHandler.EventDataRequest(&ind);
return NL_OK;
}
int NanDataCommand::processNdpCfmEvent(WifiEvent &event, NanCallbackHandler &callbackEventHandler) {
NanDataPathConfirmInd ind;
memset(&ind,0,sizeof(NanDataPathConfirmInd));
nlattr *vendor_data = event.get_attribute(NL80211_ATTR_VENDOR_DATA);
for(nl_iterator nl_itr(vendor_data); nl_itr.has_next(); nl_itr.next()) {
switch(nl_itr.get_type()) {
case NAN_EVT_ATTR_NDP_INSTANCE_ID:
ind.ndp_instance_id = nl_itr.get_u32();
break;
case NAN_EVT_ATTR_MATCH_ADDR:
memcpy(ind.peer_ndi_mac_addr, nl_itr.get_data(), ETHER_ADDR_LEN);
break;
case NAN_EVT_ATTR_APP_INFO_LEN:
ind.app_info.ndp_app_info_len = nl_itr.get_u16();
break;
case NAN_EVT_ATTR_APP_INFO:
memcpy(ind.app_info.ndp_app_info, nl_itr.get_data(), ind.app_info.ndp_app_info_len);
break;
case NAN_EVT_ATTR_NDP_RSP_CODE:
ind.rsp_code = (NanDataPathResponseCode)nl_itr.get_u32();
break;
case NAN_EVT_ATTR_STATUS_CODE:
ind.reason_code = (NanStatusType)nl_itr.get_u32();
break;
case NAN_EVT_ATTR_CHANNEL_INFO:
if (ind.num_channels < NAN_MAX_CHANNEL_INFO_SUPPORTED)
processNdpChannelInfo(nl_itr.get(), ind.channel_info[ind.num_channels++]);
break;
}
}
if(callbackEventHandler.EventDataConfirm)
callbackEventHandler.EventDataConfirm(&ind);
return NL_OK;
}
int NanDataCommand::processNdpEndEvent(WifiEvent &event, NanCallbackHandler &callbackEventHandler) {
NanDataPathEndInd ind;
memset(&ind,0,sizeof(NanDataPathEndInd));
nlattr *vendor_data = event.get_attribute(NL80211_ATTR_VENDOR_DATA);
for(nl_iterator nl_itr(vendor_data); nl_itr.has_next(); nl_itr.next()) {
if (nl_itr.get_type() == NAN_EVT_ATTR_NDP_INSTANCE_ID) {
ind.ndp_instance_id[ind.num_ndp_instances++] = nl_itr.get_u32();
}
}
if(callbackEventHandler.EventDataEnd)
callbackEventHandler.EventDataEnd(&ind);
return NL_OK;
}
NanDataCommand::NanDataCommand() {
memset(m_ndp_instance_id, 0, sizeof(m_ndp_instance_id));
memset(m_ifaceName, 0, sizeof(m_ifaceName));
m_ndp_count = 0;
m_data_iface_count = 0;
m_max_ndp_sessions = 0;
}
int NanDataCommand::getDataPathNLMsg(u16 id, void *data, int subcmd, WifiRequest &request) {
switch (subcmd) {
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_CREATE:
return dataInterfaceCreateDelete(id, (char *)data, subcmd, request);
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_DELETE:
return dataInterfaceCreateDelete(id, (char *)data, subcmd, request);
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_REQUEST_INITIATOR:
return dataRequestInitiate(id, (NanDataPathInitiatorRequest *)data, request);
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INDICATION_RESPONSE:
return dataIndicationResponse(id, (NanDataPathIndicationResponse *)data, request);
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_END:
return dataEnd(id, (NanDataPathEndRequest *)data, request);
default:
ALOGE("unknown subcmd :0x%x", subcmd);
}
return WIFI_ERROR_UNKNOWN;
}
void NanDataCommand::requestSuccess(u16 id, void *data, int subcmd) {
switch (subcmd) {
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_CREATE:
dataInterfaceCreated((char *)data);
break;
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_DELETE:
dataInterfaceDeleted((char *)data);
break;
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_REQUEST_INITIATOR:
dataRequestInitiateSuccess((NanDataPathInitiatorRequest *)data);
break;
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INDICATION_RESPONSE:
dataIndicationResponseSuccess((NanDataPathIndicationResponse *)data);
break;
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_END:
dataEndSuccess((NanDataPathEndRequest *)data);
break;
}
}
int NanDataCommand::handleEvent(WifiEvent &event, NanCallbackHandler &callbackEventHandler) {
int subcmd = event.get_vendor_subcmd();
switch (subcmd) {
case SLSI_NAN_EVENT_NDP_REQ:
return processNdpReqEvent(event, callbackEventHandler);
case SLSI_NAN_EVENT_NDP_CFM:
return processNdpCfmEvent(event, callbackEventHandler);
case SLSI_NAN_EVENT_NDP_END:
return processNdpEndEvent(event, callbackEventHandler);
default:
return NL_OK;
}
}
void NanDataCommand::setMaxNdpSessions(int max_ndp) {
m_max_ndp_sessions = max_ndp > SLSI_NAN_MAX_NDP ? SLSI_NAN_MAX_NDP : max_ndp;
}
int NanDataCommand::putSecurityInfo(u32 cipher, NanSecurityKeyInfo *key_info, u32 scid_len, u8 *scid, WifiRequest *request)
{
int result;
result = request->put_u32(NAN_REQ_ATTR_CIPHER_TYPE, cipher);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put cipher_type");
result = request->put_u32(NAN_REQ_ATTR_SECURITY_KEY_TYPE, key_info->key_type);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put cipher_type");
if (key_info->key_type == NAN_SECURITY_KEY_INPUT_PMK) {
result = request->put_u32(NAN_REQ_ATTR_SECURITY_PMK_LEN, key_info->body.pmk_info.pmk_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put key_info->body.pmk_info.pmk_len");
result = request->put(NAN_REQ_ATTR_SECURITY_PMK, key_info->body.pmk_info.pmk, key_info->body.pmk_info.pmk_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put key_info->body.pmk_info.pmk");
} else {
result = request->put_u32(NAN_REQ_ATTR_SECURITY_PASSPHRASE_LEN, key_info->body.passphrase_info.passphrase_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put key_info->body.passphrase_info.passphrase_len");
result = request->put(NAN_REQ_ATTR_SECURITY_PASSPHRASE, key_info->body.passphrase_info.passphrase,
key_info->body.passphrase_info.passphrase_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put key_info->body.passphrase_info.passphrase");
}
result = request->put_u32(NAN_REQ_ATTR_SCID_LEN, scid_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put scid_len");
if (scid_len) {
result = request->put(NAN_REQ_ATTR_SCID, scid, scid_len);
CHECK_WIFI_STATUS_RETURN_FAIL(result, "enable:Failed to put scid");
}
return result;
}
const u8 *NanDataCommand::getCmdName(int cmd){
switch(cmd) {
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_CREATE:
return (const u8 *)"SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_CREATE";
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_DELETE:
return (const u8 *)"SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INTERFACE_DELETE";
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_REQUEST_INITIATOR:
return (const u8 *)"SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_REQUEST_INITIATOR";
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INDICATION_RESPONSE:
return (const u8 *)"SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_INDICATION_RESPONSE";
case SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_END:
return (const u8 *)"SLSI_NL80211_VENDOR_SUBCMD_NAN_DATA_END";
default:
return (const u8 *)"UNKNOWN CMD";
}
return (const u8 *)"UNKNOWN CMD";
}