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The capwap data channel migrated from userspace to kernalspace

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This commit is contained in:
vemax78
2014-09-10 21:58:23 +02:00
parent 71006a9121
commit 8d9985fdea
104 changed files with 6967 additions and 4840 deletions
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156
src/wtp/wtp.c
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@ -62,7 +62,6 @@ static int wtp_init(void) {
g_wtp.mactype.type = CAPWAP_LOCALMAC;
g_wtp.mactunnel.mode = CAPWAP_WTP_LOCAL_BRIDGING;
g_wtp.tunneldataframe = WTP_TUNNEL_DATA_FRAME_KERNELMODE;
/* DTLS */
g_wtp.validdtlsdatapolicy = CAPWAP_ACDESC_CLEAR_DATA_CHANNEL_ENABLED;
@ -76,8 +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(struct sockaddr_storage), 0, 0);
g_wtp.acpreferedarray = capwap_array_create(sizeof(struct sockaddr_storage), 0, 0);
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.acdiscoveryresponse = capwap_array_create(sizeof(struct wtp_discovery_response), 0, 1);
/* Radios */
@ -135,48 +134,22 @@ static void wtp_destroy(void) {
wtp_radio_free();
}
/* Save AC address */
static int wtp_add_acaddress(struct sockaddr_storage* source, struct capwap_array* array) {
ASSERT(source != NULL);
ASSERT(array != NULL);
if ((g_wtp.net.sock_family == AF_UNSPEC) || (g_wtp.net.sock_family == source->ss_family)) {
struct sockaddr_storage* destaddr = (struct sockaddr_storage*)capwap_array_get_item_pointer(array, array->count);
/* Save address, if request, mapping IPv4 to IPv6 */
if ((g_wtp.net.sock_family == AF_UNSPEC) && (source->ss_family == AF_INET) && !(g_wtp.net.bind_ctrl_flags & CAPWAP_IPV6ONLY_FLAG)) {
if (!capwap_ipv4_mapped_ipv6(source, destaddr)) {
memcpy(destaddr, source, sizeof(struct sockaddr_storage));
}
} else {
memcpy(destaddr, source, sizeof(struct sockaddr_storage));
}
return 1;
}
return 0;
}
/* */
static int wtp_add_default_acaddress() {
struct sockaddr_storage address;
struct sockaddr_in* addressv4 = (struct sockaddr_in*)&address;
/*struct sockaddr_in6* addressv6 = (struct sockaddr_in6*)&address;*/
static void wtp_add_default_acaddress() {
union sockaddr_capwap address;
/* Broadcast IPv4 */
addressv4->sin_family = AF_INET;
addressv4->sin_addr.s_addr = INADDR_BROADCAST;
addressv4->sin_port = htons(CAPWAP_CONTROL_PORT);
wtp_add_acaddress(&address, g_wtp.acdiscoveryarray);
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));
/* Multicast IPv4 */
/* TODO */
/* Multicast IPv6 */
/* TODO */
return ((g_wtp.acdiscoveryarray->count > 0) ? 1 : 0);
}
/* Help */
@ -514,8 +487,6 @@ static int wtp_parsing_radio_configuration(config_setting_t* configElement, stru
static int wtp_parsing_configuration_1_0(config_t* config) {
int i;
int configBool;
int configIPv4;
int configIPv6;
LIBCONFIG_LOOKUP_INT_ARG configInt;
const char* configString;
config_setting_t* configSetting;
@ -651,19 +622,6 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
g_wtp.mactunnel.mode |= CAPWAP_WTP_LOCAL_BRIDGING;
}
}
if (config_lookup_string(config, "application.tunnelmode.dataframe", &configString) == CONFIG_TRUE) {
if (!strcmp(configString, "none")) {
g_wtp.tunneldataframe = WTP_TUNNEL_DATA_FRAME_NONE;
} else if (!strcmp(configString, "kernelmode")) {
g_wtp.tunneldataframe = WTP_TUNNEL_DATA_FRAME_KERNELMODE;
} else if (!strcmp(configString, "usermode")) {
g_wtp.tunneldataframe = WTP_TUNNEL_DATA_FRAME_USERMODE;
} else {
capwap_logging_error("Invalid configuration file, unknown application.tunnelmode.dataframe value");
return 0;
}
}
}
/* Set mactype of WTP */
@ -1094,7 +1052,7 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
return 0;
}
strcpy(g_wtp.net.bind_interface, configString);
strcpy(g_wtp.net.bindiface, configString);
}
/* Set mtu of WTP */
@ -1107,16 +1065,6 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
}
}
/* Set network port of WTP */
if (config_lookup_int(config, "application.network.port", &configInt) == CONFIG_TRUE) {
if ((configInt > 0) && (configInt < 65535)) {
g_wtp.net.bind_sock_ctrl_port = (unsigned short)configInt;
} else {
capwap_logging_error("Invalid configuration file, invalid application.network.port value");
return 0;
}
}
/* Set transport of WTP */
if (config_lookup_string(config, "application.network.transport", &configString) == CONFIG_TRUE) {
if (!strcmp(configString, "udp")) {
@ -1129,35 +1077,6 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
}
}
/* Set ipv4 & ipv6 of WTP */
if (config_lookup_bool(config, "application.network.ipv4", &configIPv4) != CONFIG_TRUE) {
configIPv4 = 1;
}
if (config_lookup_bool(config, "application.network.ipv6", &configIPv6) != CONFIG_TRUE) {
configIPv6 = 1;
}
if (configIPv4 && configIPv6) {
g_wtp.net.sock_family = AF_UNSPEC;
} else if (!configIPv4 && !configIPv6) {
capwap_logging_error("Invalid configuration file, request enable application.network.ipv4 or application.network.ipv6");
return 0;
} else {
g_wtp.net.sock_family = (configIPv4 ? AF_INET : AF_INET6);
}
/* Set ip dual stack of WTP */
if (config_lookup_bool(config, "application.network.ipdualstack", &configBool) == CONFIG_TRUE) {
if (!configBool) {
g_wtp.net.bind_ctrl_flags |= CAPWAP_IPV6ONLY_FLAG;
g_wtp.net.bind_data_flags |= CAPWAP_IPV6ONLY_FLAG;
} else {
g_wtp.net.bind_ctrl_flags &= ~CAPWAP_IPV6ONLY_FLAG;
g_wtp.net.bind_data_flags &= ~CAPWAP_IPV6ONLY_FLAG;
}
}
/* Set search discovery of WTP */
if (config_lookup_bool(config, "application.acdiscovery.search", &configBool) == CONFIG_TRUE) {
g_wtp.acdiscoveryrequest = (configBool ? 1 : 0);
@ -1167,19 +1086,19 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
configSetting = config_lookup(config, "application.acdiscovery.host");
if (configSetting != NULL) {
int count = config_setting_length(configSetting);
for (i = 0; i < count; i++) {
const char* address = config_setting_get_string_elem(configSetting, i);
if (address != NULL) {
struct sockaddr_storage acaddr;
union sockaddr_capwap acaddr;
/* Parsing address */
if (capwap_address_from_string(address, &acaddr)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr)) {
CAPWAP_SET_NETWORK_PORT(&acaddr, CAPWAP_CONTROL_PORT);
}
wtp_add_acaddress(&acaddr, g_wtp.acdiscoveryarray);
memcpy(capwap_array_get_item_pointer(g_wtp.acdiscoveryarray, g_wtp.acdiscoveryarray->count), &acaddr, sizeof(union sockaddr_capwap));
g_wtp.discoverytype.type = CAPWAP_DISCOVERYTYPE_TYPE_STATIC;
} else {
capwap_logging_error("Invalid configuration file, invalid application.acdiscovery.host value");
@ -1193,19 +1112,19 @@ static int wtp_parsing_configuration_1_0(config_t* config) {
configSetting = config_lookup(config, "application.acprefered.host");
if (configSetting != NULL) {
int count = config_setting_length(configSetting);
for (i = 0; i < count; i++) {
const char* address = config_setting_get_string_elem(configSetting, i);
if (address != NULL) {
struct sockaddr_storage acaddr;
union sockaddr_capwap acaddr;
/* Parsing address */
if (capwap_address_from_string(address, &acaddr)) {
if (!CAPWAP_GET_NETWORK_PORT(&acaddr)) {
CAPWAP_SET_NETWORK_PORT(&acaddr, CAPWAP_CONTROL_PORT);
}
wtp_add_acaddress(&acaddr, g_wtp.acpreferedarray);
memcpy(capwap_array_get_item_pointer(g_wtp.acpreferedarray, g_wtp.acpreferedarray->count), &acaddr, sizeof(union sockaddr_capwap));
} else {
capwap_logging_error("Invalid configuration file, invalid application.acprefered.host value");
return 0;
@ -1294,17 +1213,25 @@ static int wtp_load_configuration(int argc, char **argv) {
/* Init WTP */
static int wtp_configure(void) {
/* If not set try IPv6 */
if (g_wtp.net.localaddr.ss.ss_family == AF_UNSPEC) {
g_wtp.net.localaddr.ss.ss_family = AF_INET6;
}
/* If request add default acdiscovery */
if (!g_wtp.acdiscoveryarray->count) {
if (!wtp_add_default_acaddress()) {
capwap_logging_debug("Unable add default AC discovery");
return WTP_ERROR_NETWORK;
}
wtp_add_default_acaddress();
}
/* Bind to any address */
if (!capwap_bind_sockets(&g_wtp.net)) {
capwap_logging_fatal("Cannot bind address");
/* Bind control address */
if (capwap_bind_sockets(&g_wtp.net)) {
capwap_logging_fatal("Cannot bind control address");
return WTP_ERROR_NETWORK;
}
/* Bind data address */
if (wtp_kmod_bind(g_wtp.net.localaddr.ss.ss_family)) {
capwap_logging_fatal("Cannot bind data address");
return WTP_ERROR_NETWORK;
}
@ -1396,11 +1323,8 @@ int main(int argc, char** argv) {
wtp_wait_radio_ready();
/* Connect WTP with kernel module */
value = wtp_kmod_init();
if (!value || !g_wtp.kmodrequest) {
if (wtp_kmod_isconnected()) {
capwap_logging_info("SmartCAPWAP kernel module connected");
}
if (!wtp_kmod_init()) {
capwap_logging_info("SmartCAPWAP kernel module connected");
/* */
capwap_logging_info("Startup WTP");
@ -1411,7 +1335,7 @@ int main(int argc, char** argv) {
/* Running WTP */
result = wtp_dfa_running();
/* Close socket */
/* Close sockets */
capwap_close_sockets(&g_wtp.net);
}