Added functionality into capwap data channel kernel module
This commit is contained in:
vemax78
@ -53,11 +53,26 @@ static struct ac_soap_response* ac_session_action_authorizestation_request(struc
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}
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/* */
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static int ac_session_action_authorizestation_response(struct ac_session_t* session, struct ac_soap_response* response) {
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static int ac_session_action_authorizestation_response(struct ac_session_t* session, struct ac_soap_response* response, struct ac_notify_station_configuration_ieee8011_add_station* notify) {
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int result = -1;
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int ifindex = -1;
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uint16_t vlan = 0;
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struct ac_if_datachannel* datachannel;
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struct ac_wlan* wlan;
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struct json_object* jsonroot;
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struct json_object* jsonsection;
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struct json_object* jsonelement;
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struct capwap_header_data capwapheader;
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struct capwap_packet_txmng* txmngpacket;
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struct capwap_addstation_element addstation;
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struct capwap_80211_station_element station;
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/* Receive SOAP response with JSON result
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{
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DataChannelInterface: {
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Index: [int],
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VLAN: [int/string]
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},
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}
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*/
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@ -67,11 +82,106 @@ static int ac_session_action_authorizestation_response(struct ac_session_t* sess
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return -1;
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}
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/* TODO */
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/* */
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jsonsection = compat_json_object_object_get(jsonroot, "DataChannelInterface");
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if (jsonsection && (json_object_get_type(jsonsection) == json_type_object)) {
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jsonelement = compat_json_object_object_get(jsonsection, "Index");
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if (jsonelement && (json_object_get_type(jsonelement) == json_type_int)) {
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unsigned long index = (unsigned long)json_object_get_int(jsonelement);
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/* Retrieve interface index */
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capwap_rwlock_rdlock(&g_ac.ifdatachannellock);
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datachannel = (struct ac_if_datachannel*)capwap_hash_search(g_ac.ifdatachannel, &index);
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if (datachannel) {
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ifindex = datachannel->ifindex;
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}
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capwap_rwlock_unlock(&g_ac.ifdatachannellock);
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/* Prepare request */
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if (ifindex >= 0) {
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wlan = ac_wlans_get_bssid_with_wlanid(session, notify->radioid, notify->wlanid);
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if (wlan) {
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memset(&addstation, 0, sizeof(struct capwap_addstation_element));
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addstation.radioid = notify->radioid;
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addstation.length = MACADDRESS_EUI48_LENGTH;
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addstation.address = notify->address;
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if (wlan->tunnelmode == CAPWAP_ADD_WLAN_TUNNELMODE_LOCAL) {
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jsonelement = compat_json_object_object_get(jsonsection, "VLAN");
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if (jsonelement && (json_object_get_type(jsonelement) == json_type_string)) {
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const char* wtpvlan = json_object_get_string(jsonelement);
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if (wtpvlan && (strlen(wtpvlan) < CAPWAP_ADDSTATION_VLAN_MAX_LENGTH)) {
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addstation.vlan = (uint8_t*)wtpvlan; /* Free with jsonroot */
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}
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}
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}
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/* */
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memset(&station, 0, sizeof(struct capwap_80211_station_element));
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station.radioid = notify->radioid;
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station.associationid = notify->associationid;
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memcpy(station.address, notify->address, MACADDRESS_EUI48_LENGTH);
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station.capabilities = notify->capabilities;
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station.wlanid = notify->wlanid;
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station.supportedratescount = notify->supportedratescount;
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memcpy(station.supportedrates, notify->supportedrates, station.supportedratescount);
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/* Build packet */
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capwap_header_init(&capwapheader, CAPWAP_RADIOID_NONE, session->binding);
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txmngpacket = capwap_packet_txmng_create_ctrl_message(&capwapheader, CAPWAP_STATION_CONFIGURATION_REQUEST, session->localseqnumber++, session->mtu);
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/* Add message element */
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capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ADDSTATION, &addstation);
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capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_80211_STATION, &station);
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/* CAPWAP_ELEMENT_VENDORPAYLOAD */ /* TODO */
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/* Station Configuration Request complete, get fragment packets */
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capwap_packet_txmng_get_fragment_packets(txmngpacket, session->requestfragmentpacket, session->fragmentid);
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if (session->requestfragmentpacket->count > 1) {
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session->fragmentid++;
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}
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/* Free packets manager */
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capwap_packet_txmng_free(txmngpacket);
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/* Send Station Configuration Request to WTP */
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if (capwap_crypt_sendto_fragmentpacket(&session->dtls, session->requestfragmentpacket)) {
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/* Retrive VLAN */
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if (wlan->tunnelmode != CAPWAP_ADD_WLAN_TUNNELMODE_LOCAL) {
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jsonelement = compat_json_object_object_get(jsonroot, "DataChannelInterface.VLAN");
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if (jsonelement && (json_object_get_type(jsonelement) == json_type_int)) {
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int acvlan = json_object_get_int(jsonelement);
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if ((acvlan > 0) && (acvlan < VLAN_MAX)) {
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vlan = (uint16_t)acvlan;
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}
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}
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}
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/* Authorize station also into kernel module */
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if (!ac_kmod_authorize_station(&session->sessionid, addstation.address, ifindex, notify->radioid, notify->wlanid, vlan)) {
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result = 0;
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session->retransmitcount = 0;
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capwap_timeout_set(session->timeout, session->idtimercontrol, AC_RETRANSMIT_INTERVAL, ac_dfa_retransmition_timeout, session, NULL);
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} else {
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capwap_logging_warning("Unable to authorize station into kernel module data channel");
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ac_free_reference_last_request(session);
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ac_session_teardown(session);
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}
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} else {
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capwap_logging_debug("Warning: error to send Station Configuration Request packet");
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ac_free_reference_last_request(session);
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ac_session_teardown(session);
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}
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}
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}
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}
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}
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/* */
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json_object_put(jsonroot);
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return 0;
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return result;
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}
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/* */
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@ -179,10 +289,6 @@ static int ac_session_action_addwlan(struct ac_session_t* session, struct ac_not
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/* */
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static int ac_session_action_station_configuration_ieee8011_add_station(struct ac_session_t* session, struct ac_notify_station_configuration_ieee8011_add_station* notify) {
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struct capwap_header_data capwapheader;
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struct capwap_packet_txmng* txmngpacket;
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struct capwap_addstation_element addstation;
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struct capwap_80211_station_element station;
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struct ac_soap_response* response;
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ASSERT(session->requestfragmentpacket->count == 0);
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@ -192,57 +298,11 @@ static int ac_session_action_station_configuration_ieee8011_add_station(struct a
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return AC_NO_ERROR;
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}
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/* */
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/* Need authorization of Director */
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response = ac_session_action_authorizestation_request(session, notify->radioid, notify->wlanid, notify->address);
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if (response) {
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if (!ac_session_action_authorizestation_response(session, response)) {
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memset(&addstation, 0, sizeof(struct capwap_addstation_element));
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addstation.radioid = notify->radioid;
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addstation.length = MACADDRESS_EUI48_LENGTH;
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addstation.address = notify->address;
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if (notify->vlan[0]) {
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addstation.vlan = notify->vlan;
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}
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/* */
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memset(&station, 0, sizeof(struct capwap_80211_station_element));
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station.radioid = notify->radioid;
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station.associationid = notify->associationid;
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memcpy(station.address, notify->address, MACADDRESS_EUI48_LENGTH);
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station.capabilities = notify->capabilities;
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station.wlanid = notify->wlanid;
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station.supportedratescount = notify->supportedratescount;
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memcpy(station.supportedrates, notify->supportedrates, station.supportedratescount);
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/* Build packet */
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capwap_header_init(&capwapheader, CAPWAP_RADIOID_NONE, session->binding);
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txmngpacket = capwap_packet_txmng_create_ctrl_message(&capwapheader, CAPWAP_STATION_CONFIGURATION_REQUEST, session->localseqnumber++, session->mtu);
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/* Add message element */
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capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ADDSTATION, &addstation);
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capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_80211_STATION, &station);
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/* CAPWAP_ELEMENT_VENDORPAYLOAD */ /* TODO */
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/* Station Configuration Request complete, get fragment packets */
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capwap_packet_txmng_get_fragment_packets(txmngpacket, session->requestfragmentpacket, session->fragmentid);
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if (session->requestfragmentpacket->count > 1) {
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session->fragmentid++;
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}
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/* Free packets manager */
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capwap_packet_txmng_free(txmngpacket);
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/* Send Station Configuration Request to WTP */
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if (capwap_crypt_sendto_fragmentpacket(&session->dtls, session->requestfragmentpacket)) {
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session->retransmitcount = 0;
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capwap_timeout_set(session->timeout, session->idtimercontrol, AC_RETRANSMIT_INTERVAL, ac_dfa_retransmition_timeout, session, NULL);
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} else {
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capwap_logging_debug("Warning: error to send Station Configuration Request packet");
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ac_free_reference_last_request(session);
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ac_session_teardown(session);
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}
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} else {
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if (ac_session_action_authorizestation_response(session, response, notify)) {
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capwap_logging_info("Station is not authorized");
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/* TODO kickoff station */
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}
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@ -343,7 +403,7 @@ static int ac_session_action_execute(struct ac_session_t* session, struct ac_ses
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}
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#endif
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/* Send keep-alive response */
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ac_kmod_send_keepalive(&session->sockaddrdata.ss);
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//ac_kmod_send_keepalive(&session->sessionid);
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capwap_timeout_set(session->timeout, session->idtimerkeepalivedead, AC_MAX_DATA_KEEPALIVE_INTERVAL, ac_dfa_teardown_timeout, session, NULL);
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/* */
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