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If there is no DNS available on system start the capwap-wtp will stop while evaluating the configuration. I fixed that by checking if the address was yet translated on every address access. If not a DNS request is started before continuing.

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This commit is contained in:
Moritz Rosenthal
2016-03-24 07:09:29 +01:00
parent 1d95a62061
commit 7b9f515bd7
4 changed files with 90 additions and 36 deletions
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53
src/wtp/wtp.c
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@ -75,8 +75,8 @@ static int wtp_init(void) {
/* AC information */
g_wtp.discoverytype.type = CAPWAP_DISCOVERYTYPE_TYPE_UNKNOWN;
g_wtp.acdiscoveryrequest = 1;
g_wtp.acdiscoveryarray = capwap_array_create(sizeof(union sockaddr_capwap), 0, 0);
g_wtp.acpreferedarray = capwap_array_create(sizeof(union sockaddr_capwap), 0, 0);
g_wtp.acdiscoveryarray = capwap_array_create(sizeof(struct addr_capwap), 0, 0);
g_wtp.acpreferedarray = capwap_array_create(sizeof(struct addr_capwap), 0, 0);
g_wtp.acdiscoveryresponse = capwap_array_create(sizeof(struct wtp_discovery_response), 0, 1);
/* Radios */
@ -136,14 +136,15 @@ static void wtp_destroy(void) {
/* */
static void wtp_add_default_acaddress() {
union sockaddr_capwap address;
struct addr_capwap address;
/* Broadcast IPv4 */
memset(&address, 0, sizeof(union sockaddr_capwap));
address.sin.sin_family = AF_INET;
address.sin.sin_addr.s_addr = INADDR_BROADCAST;
address.sin.sin_port = htons(CAPWAP_CONTROL_PORT);
memcpy(capwap_array_get_item_pointer(g_wtp.acdiscoveryarray, g_wtp.acdiscoveryarray->count), &address, sizeof(union sockaddr_capwap));
memset(&address, 0, sizeof(struct addr_capwap));
address.resolved = 1;
address.socket.sin.sin_family = AF_INET;
address.socket.sin.sin_addr.s_addr = INADDR_BROADCAST;
address.socket.sin.sin_port = htons(CAPWAP_CONTROL_PORT);
memcpy(capwap_array_get_item_pointer(g_wtp.acdiscoveryarray, g_wtp.acdiscoveryarray->count), &address, sizeof(struct addr_capwap));
/* Multicast IPv4 */
/* TODO */
@ -1068,20 +1069,22 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
for (i = 0; i < count; i++) {
const char* address = config_setting_get_string_elem(configSetting, i);
if (address != NULL) {
union sockaddr_capwap acaddr;
struct addr_capwap acaddr;
memset(&acaddr, 0, sizeof(struct addr_capwap));
strncpy(acaddr.fqdn, address, CAPWAP_MAX_FQDN_SIZE-1);
acaddr.resolved = 0;
/* Parsing address */
if (capwap_address_from_string(address, &acaddr)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr)) {
CAPWAP_SET_NETWORK_PORT(&acaddr, CAPWAP_CONTROL_PORT);
if (capwap_address_from_string(address, &acaddr.socket)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr.socket)) {
CAPWAP_SET_NETWORK_PORT(&acaddr.socket, CAPWAP_CONTROL_PORT);
}
memcpy(capwap_array_get_item_pointer(g_wtp.acdiscoveryarray, g_wtp.acdiscoveryarray->count), &acaddr, sizeof(union sockaddr_capwap));
acaddr.resolved = 1;
g_wtp.discoverytype.type = CAPWAP_DISCOVERYTYPE_TYPE_STATIC;
} else {
capwap_logging_error("Invalid configuration file, invalid application.acdiscovery.host value");
return 0;
capwap_logging_info("%s:%d Could not resolve application.acdiscovery.host %s", __FILE__, __LINE__, address);
}
memcpy(capwap_array_get_item_pointer(g_wtp.acdiscoveryarray, g_wtp.acdiscoveryarray->count), &acaddr, sizeof(struct addr_capwap));
}
}
}
@ -1094,19 +1097,21 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
for (i = 0; i < count; i++) {
const char* address = config_setting_get_string_elem(configSetting, i);
if (address != NULL) {
union sockaddr_capwap acaddr;
struct addr_capwap acaddr;
memset(&acaddr, 0, sizeof(struct addr_capwap));
strncpy(acaddr.fqdn, address, CAPWAP_MAX_FQDN_SIZE-1);
acaddr.resolved = 0;
/* Parsing address */
if (capwap_address_from_string(address, &acaddr)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr)) {
CAPWAP_SET_NETWORK_PORT(&acaddr, CAPWAP_CONTROL_PORT);
if (capwap_address_from_string(address, &acaddr.socket)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr.socket)) {
CAPWAP_SET_NETWORK_PORT(&acaddr.socket, CAPWAP_CONTROL_PORT);
}
memcpy(capwap_array_get_item_pointer(g_wtp.acpreferedarray, g_wtp.acpreferedarray->count), &acaddr, sizeof(union sockaddr_capwap));
acaddr.resolved = 1;
} else {
capwap_logging_error("Invalid configuration file, invalid application.acprefered.host value");
return 0;
capwap_logging_info("%s:%d Could not resolve application.acprefered.host %s", __FILE__, __LINE__, acaddr.fqdn);
}
memcpy(capwap_array_get_item_pointer(g_wtp.acpreferedarray, g_wtp.acpreferedarray->count), &acaddr, sizeof(struct addr_capwap));
}
}
}