Merge KeystoneQ-ww-20190522

[GitHub/MotorolaMobilityLLC/hardware-samsung_slsi-scsc_wifibt-wifi_hal.git] / roam.cpp

#include <stdint.h>\r
#include <stddef.h>\r
#include <fcntl.h>\r
#include <sys/socket.h>\r
#include <netlink/genl/genl.h>\r
#include <netlink/genl/family.h>\r
#include <netlink/genl/ctrl.h>\r
#include <linux/rtnetlink.h>\r
#include <netpacket/packet.h>\r
#include <linux/filter.h>\r
#include <linux/errqueue.h>\r
\r
#include <linux/pkt_sched.h>\r
#include <netlink/object-api.h>\r
#include <netlink/netlink.h>\r
#include <netlink/socket.h>\r
#include <netlink/handlers.h>\r
\r
#include "sync.h"\r
\r
#define LOG_TAG  "WifiHAL"\r
\r
#include <utils/Log.h>\r
\r
#include "wifi_hal.h"\r
#include "common.h"\r
#include "cpp_bindings.h"\r
\r
#define REQUEST_ID_MAX 1000\r
#define get_requestid() ((arc4random()%REQUEST_ID_MAX) + 1)\r
\r
enum roam_attributes {\r
    SLSI_ATTR_ROAM_CAPABILITY_BLACKLIST_SIZE,\r
    SLSI_ATTR_ROAM_CAPABILITY_WHITELIST_SIZE,\r
    SLSI_ATTR_ROAM_STATE\r
};\r
\r
class BssidBlacklistCommand : public WifiCommand\r
{\r
private:\r
    wifi_bssid_params *mParams;\r
public:\r
    BssidBlacklistCommand(wifi_interface_handle handle, int id,\r
            wifi_bssid_params *params)\r
        : WifiCommand(handle, id), mParams(params)\r
    { }\r
     int createRequest(WifiRequest& request) {\r
        int result = request.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_BSSID_BLACKLIST);\r
        if (result < 0) {\r
            return result;\r
        }\r
\r
        nlattr *data = request.attr_start(NL80211_ATTR_VENDOR_DATA);\r
        result = request.put_u32(GSCAN_ATTRIBUTE_NUM_BSSID, mParams->num_bssid);\r
        if (result < 0) {\r
            return result;\r
        }\r
\r
        for (int i = 0; i < mParams->num_bssid; i++) {\r
            result = request.put_addr(GSCAN_ATTRIBUTE_BLACKLIST_BSSID, mParams->bssids[i]);\r
            if (result < 0) {\r
                return result;\r
            }\r
        }\r
        request.attr_end(data);\r
        return result;\r
    }\r
\r
    int start() {\r
        WifiRequest request(familyId(), ifaceId());\r
        int result = createRequest(request);\r
        if (result < 0) {\r
            return result;\r
        }\r
\r
        result = requestResponse(request);\r
        if (result < 0) {\r
            ALOGE("Failed to execute bssid blacklist request, result = %d", result);\r
            return result;\r
        }\r
\r
        return result;\r
    }\r
\r
\r
    virtual int handleResponse(WifiEvent& reply) {\r
        /* Nothing to do on response! */\r
        return NL_SKIP;\r
    }\r
};\r
\r
wifi_error wifi_set_bssid_blacklist(wifi_request_id id, wifi_interface_handle iface,\r
        wifi_bssid_params params)\r
{\r
    BssidBlacklistCommand *cmd = new BssidBlacklistCommand(iface, id, &params);\r
    wifi_error result = (wifi_error)cmd->start();\r
    //release the reference of command as well\r
    cmd->releaseRef();\r
    return result;\r
}\r
\r
\r
class RoamingCapabilitiesCommand : public WifiCommand\r
{\r
private:\r
    wifi_roaming_capabilities *mCaps;\r
\r
public:\r
    RoamingCapabilitiesCommand(wifi_interface_handle handle, wifi_roaming_capabilities *caps)\r
        : WifiCommand(handle, 0) {\r
        mCaps = caps;\r
    }\r
\r
    virtual int create() {\r
        int ret;\r
\r
        ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_GET_ROAMING_CAPABILITIES);\r
        if (ret < 0) {\r
             ALOGE("Can't create message to send to driver - %d", ret);\r
             return ret;\r
        }\r
        return WIFI_SUCCESS;\r
\r
    }\r
\r
    virtual int handleResponse(WifiEvent& reply) {\r
\r
        if (reply.get_cmd() != NL80211_CMD_VENDOR) {\r
            ALOGD("Ignore reply; cmd = %d", reply.get_cmd());\r
            return NL_SKIP;\r
        }\r
\r
        nlattr *vendor_data = reply.get_attribute(NL80211_ATTR_VENDOR_DATA);\r
        int len = reply.get_vendor_data_len();\r
\r
        if (vendor_data == NULL || len == 0) {\r
            ALOGE("vendor data in GetFeatureSetCommand missing!!");\r
            return NL_SKIP;\r
        }\r
\r
        for (nl_iterator it(vendor_data); it.has_next(); it.next()) {\r
            switch(it.get_type()) {\r
                case SLSI_ATTR_ROAM_CAPABILITY_BLACKLIST_SIZE:\r
                    mCaps->max_blacklist_size = it.get_u32();\r
                    break;\r
                case SLSI_ATTR_ROAM_CAPABILITY_WHITELIST_SIZE:\r
                    mCaps->max_whitelist_size = it.get_u32();\r
                    break;\r
                default :\r
                    break;\r
            }\r
        }\r
        return NL_OK;\r
    }\r
};\r
\r
wifi_error wifi_get_roaming_capabilities(wifi_interface_handle handle,\r
                                         wifi_roaming_capabilities *caps)\r
{\r
    RoamingCapabilitiesCommand cmd(handle, caps);\r
    return (wifi_error) cmd.requestResponse();\r
}\r
\r
class RoamingStateCommand : public WifiCommand\r
{\r
private:\r
    fw_roaming_state_t mRoamingState;\r
\r
public:\r
    RoamingStateCommand(wifi_interface_handle handle, fw_roaming_state_t roaming_state)\r
        : WifiCommand(handle, 0) {\r
        mRoamingState = roaming_state;\r
    }\r
\r
    virtual int create() {\r
        int ret;\r
        ret = mMsg.create(GOOGLE_OUI, SLSI_NL80211_VENDOR_SUBCMD_SET_ROAMING_STATE);\r
        if (ret < 0) {\r
             ALOGE("Can't create message to send to driver - %d", ret);\r
             return ret;\r
        }\r
\r
        nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA);\r
        ret = mMsg.put_u8(SLSI_ATTR_ROAM_STATE, mRoamingState);\r
        if (ret < 0) {\r
            return ret;\r
        }\r
        mMsg.attr_end(data);\r
        return WIFI_SUCCESS;\r
    }\r
};\r
\r
wifi_error wifi_enable_firmware_roaming(wifi_interface_handle handle, fw_roaming_state_t state) {\r
    RoamingStateCommand cmd(handle, state);\r
    wifi_error ret = (wifi_error) cmd.requestResponse();\r
    return ret;\r
}\r
\r
wifi_error wifi_configure_roaming(wifi_interface_handle iface, wifi_roaming_config *roaming_config)\r
{\r
    wifi_error ret;\r
    int requestId;\r
    wifi_bssid_params bssid_params;\r
\r
    if (!roaming_config) {\r
        ALOGE("%s: Invalid Buffer provided. Exit", __FUNCTION__);\r
        return WIFI_ERROR_INVALID_ARGS;\r
   }\r
\r
    /* Generate request id randomly*/\r
   requestId = get_requestid();\r
   bssid_params.num_bssid = roaming_config->num_blacklist_bssid;\r
\r
   memcpy(bssid_params.bssids, roaming_config->blacklist_bssid,\r
           (bssid_params.num_bssid * sizeof(mac_addr)));\r
\r
    ret = wifi_set_bssid_blacklist(requestId, iface, bssid_params);\r
    if (ret != WIFI_SUCCESS) {\r
        ALOGE("%s: Failed to configure blacklist bssids", __FUNCTION__);\r
        return WIFI_ERROR_UNKNOWN;\r
    }\r
\r
    return ret;\r
}\r