static uint32_t ac_dfa_state_join_create_response(struct ac_session_t* session, struct capwap_parsed_packet* packet, struct ac_soap_response* response, struct capwap_packet_txmng* txmngpacket) { int i; int j; int length; struct json_object* jsonroot; struct json_object* jsonelement; struct capwap_list* controllist; struct capwap_list_item* item; unsigned short binding = GET_WBID_HEADER(packet->rxmngpacket->header); /* Receive SOAP response with JSON result { WTPRadioInformation: [ <IEEE 802.11 BINDING> IEEE80211WTPRadioInformation: { RadioID: [int], Mode: [int] } ] ACIPv4List: [ { ACIPAddress: [string] } ], ACIPv6List: [ { ACIPAddress: [string] } ] <IEEE 802.11 BINDING> WTPRadio: [ { RadioID: [int], IEEE80211WTPRadioInformation: { Mode: [int] } } ] } */ /* Add message elements response, every local value can be overwrite from backend server */ jsonroot = ac_soapclient_parse_json_response(response); if (!jsonroot) { return CAPWAP_RESULTCODE_FAILURE; } /* AC Descriptor */ ac_update_statistics(); capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACDESCRIPTION, &g_ac.descriptor); /* AC Name */ capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACNAME, &g_ac.acname); /* WTP Radio Information */ if (binding == CAPWAP_WIRELESS_BINDING_IEEE80211) { struct ac_json_ieee80211_wtpradio wtpradio; struct capwap_array* wtpradioinformation = (struct capwap_array*)capwap_get_message_element_data(packet, CAPWAP_ELEMENT_80211_WTPRADIOINFORMATION); /* */ ac_json_ieee80211_init(&wtpradio); /* */ jsonelement = compat_json_object_object_get(jsonroot, IEEE80211_BINDING_JSON_ROOT); if (jsonelement) { ac_json_ieee80211_parsingjson(&wtpradio, jsonelement); } /* Copy WTP Radio Information if not present into SOAP response */ for (i = 0; i < wtpradioinformation->count; i++) { ac_json_ieee80211_addmessageelement(&wtpradio, CAPWAP_ELEMENT_80211_WTPRADIOINFORMATION, *(struct capwap_80211_wtpradioinformation_element**)capwap_array_get_item_pointer(wtpradioinformation, i), 0); } /* */ ac_json_ieee80211_buildpacket(&wtpradio, txmngpacket); /* Free resource */ ac_json_ieee80211_free(&wtpradio); } /* ECN Support */ capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ECNSUPPORT, &session->dfa.ecn); /* Get information from any local address */ controllist = capwap_list_create(); ac_get_control_information(controllist); /* CAPWAP Control IP Address */ for (item = controllist->first; item != NULL; item = item->next) { struct ac_session_control* sessioncontrol = (struct ac_session_control*)item->item; if (sessioncontrol->localaddress.ss.ss_family == AF_INET) { struct capwap_controlipv4_element element; memcpy(&element.address, &((struct sockaddr_in*)&sessioncontrol->localaddress)->sin_addr, sizeof(struct in_addr)); element.wtpcount = sessioncontrol->count; capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_CONTROLIPV4, &element); } else if (sessioncontrol->localaddress.ss.ss_family == AF_INET6) { struct capwap_controlipv6_element element; memcpy(&element.address, &((struct sockaddr_in6*)&sessioncontrol->localaddress)->sin6_addr, sizeof(struct in6_addr)); element.wtpcount = sessioncontrol->count; capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_CONTROLIPV6, &element); } } capwap_list_free(controllist); /* CAPWAP Local IP Address */ if (session->dtls.localaddr.ss.ss_family == AF_INET) { struct capwap_localipv4_element addr; memcpy(&addr.address, &session->dtls.localaddr.sin.sin_addr, sizeof(struct in_addr)); capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_LOCALIPV4, &addr); } else if (session->dtls.localaddr.ss.ss_family == AF_INET6) { struct capwap_localipv6_element addr; memcpy(&addr.address, &session->dtls.localaddr.sin6.sin6_addr, sizeof(struct in6_addr)); capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_LOCALIPV6, &addr); } /* ACIPv4List */ jsonelement = NULL; if (jsonroot) { jsonelement = compat_json_object_object_get(jsonroot, "ACIPv4List"); if (jsonelement && (json_object_get_type(jsonelement) == json_type_array)) { length = json_object_array_length(jsonelement); } else { jsonelement = NULL; } } if (jsonelement) { struct capwap_acipv4list_element* responseacipv4list; responseacipv4list = (struct capwap_acipv4list_element*)capwap_alloc(sizeof(struct capwap_acipv4list_element)); responseacipv4list->addresses = capwap_array_create(sizeof(struct in_addr), 0, 0); for (j = 0; j < length; j++) { struct json_object* jsonvalue = json_object_array_get_idx(jsonelement, j); if (jsonvalue && (json_object_get_type(jsonvalue) == json_type_object)) { struct json_object* jsonitem; /* ACIPAddress */ jsonitem = compat_json_object_object_get(jsonvalue, "ACIPAddress"); if (jsonitem && (json_object_get_type(jsonitem) == json_type_string)) { const char* value = json_object_get_string(jsonitem); if (value) { union sockaddr_capwap address; if (capwap_address_from_string(value, &address)) { /* Accept only IPv4 address */ if (address.ss.ss_family == AF_INET) { struct in_addr* responseaddress_in = (struct in_addr*)capwap_array_get_item_pointer(responseacipv4list->addresses, responseacipv4list->addresses->count); memcpy(responseaddress_in, &address.sin.sin_addr, sizeof(struct in_addr)); } } } } } } if (responseacipv4list->addresses->count > 0) { capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACIPV4LIST, responseacipv4list); } capwap_array_free(responseacipv4list->addresses); capwap_free(responseacipv4list); } else if (session->dfa.acipv4list.addresses->count > 0) { capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACIPV4LIST, &session->dfa.acipv4list); } /* ACIPv6List */ jsonelement = NULL; if (jsonroot) { jsonelement = compat_json_object_object_get(jsonroot, "ACIPv6List"); if (jsonelement && (json_object_get_type(jsonelement) == json_type_array)) { length = json_object_array_length(jsonelement); } else { jsonelement = NULL; } } if (jsonelement) { int j; struct capwap_acipv6list_element* responseacipv6list; responseacipv6list = (struct capwap_acipv6list_element*)capwap_alloc(sizeof(struct capwap_acipv6list_element)); responseacipv6list->addresses = capwap_array_create(sizeof(struct in6_addr), 0, 0); for (j = 0; j < length; j++) { struct json_object* jsonvalue = json_object_array_get_idx(jsonelement, j); if (jsonvalue && (json_object_get_type(jsonvalue) == json_type_object)) { struct json_object* jsonitem; /* ACIPAddress */ jsonitem = compat_json_object_object_get(jsonvalue, "ACIPAddress"); if (jsonitem && (json_object_get_type(jsonitem) == json_type_string)) { const char* value = json_object_get_string(jsonitem); if (value) { union sockaddr_capwap address; if (capwap_address_from_string(value, &address)) { /* Accept only IPv6 address */ if (address.ss.ss_family == AF_INET6) { struct in6_addr* responseaddress_in6 = (struct in6_addr*)capwap_array_get_item_pointer(responseacipv6list->addresses, responseacipv6list->addresses->count); memcpy(responseaddress_in6, &address.sin6.sin6_addr, sizeof(struct in6_addr)); } } } } } } if (responseacipv6list->addresses->count > 0) { capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACIPV6LIST, responseacipv6list); } capwap_array_free(responseacipv6list->addresses); capwap_free(responseacipv6list); } else if (session->dfa.acipv6list.addresses->count > 0) { capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_ACIPV6LIST, &session->dfa.acipv6list); } /* CAPWAP Transport Protocol */ capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_TRANSPORT, &session->dfa.transport); /* CAPWAP_ELEMENT_IMAGEIDENTIFIER */ /* TODO */ /* CAPWAP_ELEMENT_MAXIMUMLENGTH */ /* TODO */ /* CAPWAP_ELEMENT_VENDORPAYLOAD */ /* TODO */ if (jsonroot) { json_object_put(jsonroot); } return CAPWAP_RESULTCODE_SUCCESS; }
static int wtp_join_prefered_ac() { if (g_wtp.acdiscoveryrequest || g_wtp.acpreferedarray->count == 0) /* goto discovery */ return -1; while (g_wtp.acpreferedselected < g_wtp.acpreferedarray->count) { union sockaddr_capwap localaddr; struct addr_capwap *peeraddr; /* Found in configuration file the AC address */ peeraddr = capwap_array_get_item_pointer(g_wtp.acpreferedarray, g_wtp.acpreferedselected); /* Next AC */ g_wtp.acpreferedselected++; /* restart and connect the control Socket */ wtp_socket_io_stop(); capwap_close_sockets(&g_wtp.net); if (capwap_bind_sockets(&g_wtp.net) < 0) { log_printf(LOG_EMERG, "Cannot bind control address"); return -1; } wtp_socket_io_start(); if(!peeraddr->resolved) { if (capwap_address_from_string(peeraddr->fqdn, &peeraddr->sockaddr)) { if (!CAPWAP_GET_NETWORK_PORT(&peeraddr->sockaddr)) { CAPWAP_SET_NETWORK_PORT(&peeraddr->sockaddr, CAPWAP_CONTROL_PORT); } peeraddr->resolved = 1; } else { log_printf(LOG_INFO, "%s:%d Could not resolve application.acprefered.host %s", __FILE__, __LINE__, peeraddr->fqdn); } } if (capwap_connect_socket(&g_wtp.net, &peeraddr->sockaddr) < 0) { log_printf(LOG_EMERG, "Cannot bind control address"); wtp_socket_io_stop(); capwap_close_sockets(&g_wtp.net); return -1; } /* Retrieve local address */ if (capwap_getsockname(&g_wtp.net, &localaddr) < 0) { log_printf(LOG_EMERG, "Cannot get local endpoint address"); wtp_socket_io_stop(); capwap_close_sockets(&g_wtp.net); return -1; } /* */ capwap_crypt_setconnection(&g_wtp.dtls, g_wtp.net.socket, &localaddr, &peeraddr->sockaddr); /* */ if (!g_wtp.enabledtls) { wtp_dfa_change_state(CAPWAP_JOIN_STATE); /* Bypass DTLS connection */ } else wtp_start_dtlssetup(); /* Create DTLS connection */ return 0; } return -1; }