102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
#include "wtp.h"
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#include "capwap_dfa.h"
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#include "wtp_dfa.h"
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static int wtp_join_prefered_ac()
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{
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if (g_wtp.acdiscoveryrequest ||
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g_wtp.acpreferedarray->count == 0)
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/* goto discovery */
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return -1;
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while (g_wtp.acpreferedselected < g_wtp.acpreferedarray->count)
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{
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union sockaddr_capwap localaddr;
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struct addr_capwap *peeraddr;
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/* Found in configuration file the AC address */
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peeraddr = capwap_array_get_item_pointer(g_wtp.acpreferedarray,
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g_wtp.acpreferedselected);
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/* Next AC */
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g_wtp.acpreferedselected++;
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/* restart and connect the control Socket */
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capwap_close_sockets(&g_wtp.net);
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if (capwap_bind_sockets(&g_wtp.net) < 0) {
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capwap_logging_fatal("Cannot bind control address");
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return -1;
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}
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if(!peeraddr->resolved) {
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if (capwap_address_from_string(peeraddr->fqdn, &peeraddr->sockaddr)) {
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if (!CAPWAP_GET_NETWORK_PORT(&peeraddr->sockaddr)) {
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CAPWAP_SET_NETWORK_PORT(&peeraddr->sockaddr, CAPWAP_CONTROL_PORT);
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}
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peeraddr->resolved = 1;
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} else {
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capwap_logging_info("%s:%d Could not resolve application.acprefered.host %s", __FILE__, __LINE__, peeraddr->fqdn);
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}
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}
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if (capwap_connect_socket(&g_wtp.net, &peeraddr->sockaddr) < 0) {
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capwap_logging_fatal("Cannot bind control address");
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capwap_close_sockets(&g_wtp.net);
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return -1;
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}
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/* Retrieve local address */
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if (capwap_getsockname(&g_wtp.net, &localaddr) < 0) {
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capwap_logging_fatal("Cannot get local endpoint address");
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capwap_close_sockets(&g_wtp.net);
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return -1;
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}
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/* */
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capwap_crypt_setconnection(&g_wtp.dtls, g_wtp.net.socket, &localaddr, &peeraddr->sockaddr);
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/* */
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if (!g_wtp.enabledtls) {
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wtp_send_join(); /* Bypass DTLS connection */
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} else {
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wtp_start_dtlssetup(); /* Create DTLS connection */
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}
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return 0;
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}
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return -1;
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}
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/* */
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void wtp_dfa_state_idle(void) {
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long discoveryinterval;
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/* Remove teardown */
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g_wtp.teardown = 0;
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capwap_timeout_unsetall(g_wtp.timeout);
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if (wtp_join_prefered_ac() == 0)
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return;
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if (g_wtp.net.socket < 0)
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if (capwap_bind_sockets(&g_wtp.net) < 0) {
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capwap_logging_fatal("Cannot bind control address");
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exit(-1);
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}
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/* Discovery AC */
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g_wtp.acpreferedselected = 0;
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/* Set discovery interval */
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g_wtp.discoverycount = 0;
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discoveryinterval = capwap_get_rand(g_wtp.discoveryinterval - WTP_MIN_DISCOVERY_INTERVAL) + WTP_MIN_DISCOVERY_INTERVAL;
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/* Change state */
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wtp_dfa_change_state(CAPWAP_DISCOVERY_STATE);
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/* Wait before send Discovery Request */
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capwap_timeout_set(g_wtp.timeout, g_wtp.idtimercontrol, discoveryinterval, wtp_dfa_state_discovery_timeout, NULL, NULL);
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}
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