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Improve memory administration for tx/rx packet manager

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This commit is contained in:
vemax78
2013-05-27 21:33:23 +02:00
parent 9157cc278b
commit 6c55b4d71f
126 changed files with 5383 additions and 7894 deletions
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355
src/ac/ac_dfa_run.c
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@ -4,185 +4,148 @@
#include "ac_session.h"
/* */
static int receive_echo_request(struct ac_session_t* session, struct capwap_build_packet* buildpacket, struct capwap_packet* packet) {
unsigned long i;
unsigned short binding;
static int receive_echo_request(struct ac_session_t* session, struct capwap_parsed_packet* packet) {
struct capwap_header_data capwapheader;
struct capwap_packet_txmng* txmngpacket;
ASSERT(session != NULL);
ASSERT(buildpacket != NULL);
ASSERT(packet != NULL);
/* */
binding = GET_WBID_HEADER(&buildpacket->header);
if (ac_valid_binding(binding) && IS_SEQUENCE_SMALLER(session->remoteseqnumber, buildpacket->ctrlmsg.seq)) {
struct capwap_element_echo_request echorequest;
/* Echo request info*/
capwap_init_element_echo_request(&echorequest, binding);
/* Parsing elements list */
if (capwap_parsing_element_echo_request(&echorequest, buildpacket->elementslist->first)) {
struct capwap_build_packet* responsepacket;
/* Create response */
capwap_header_init(&capwapheader, CAPWAP_RADIOID_NONE, GET_WBID_HEADER(packet->rxmngpacket->header));
txmngpacket = capwap_packet_txmng_create_ctrl_message(&capwapheader, CAPWAP_ECHO_RESPONSE, packet->rxmngpacket->ctrlmsg.seq, session->mtu);
/* Create response */
responsepacket = capwap_tx_packet_create(CAPWAP_RADIOID_NONE, binding);
responsepacket->isctrlmsg = 1;
/* Add message element */
/* CAPWAP_CREATE_VENDORSPECIFICPAYLOAD_ELEMENT */ /* TODO */
/* Prepare echo response */
capwap_build_packet_set_control_message_type(responsepacket, CAPWAP_ECHO_RESPONSE, buildpacket->ctrlmsg.seq);
/* CAPWAP_CREATE_VENDORSPECIFICPAYLOAD_ELEMENT */ /* TODO */
/* Echo response complete, get fragment packets */
ac_free_reference_last_response(session);
capwap_packet_txmng_get_fragment_packets(txmngpacket, session->responsefragmentpacket, session->fragmentid);
if (session->responsefragmentpacket->count > 1) {
session->fragmentid++;
}
if (!capwap_build_packet_validate(responsepacket, NULL)) {
int result;
/* Free old reference for this request */
ac_free_reference_last_response(session);
/* Free packets manager */
capwap_packet_txmng_free(txmngpacket);
/* Send echo response to WTP */
result = capwap_fragment_build_packet(responsepacket, session->responsefragmentpacket, session->mtu, session->fragmentid);
if (result >= 0) {
if (result == 1) {
session->fragmentid++;
}
/* Save remote sequence number */
session->remoteseqnumber = packet->rxmngpacket->ctrlmsg.seq;
capwap_get_packet_digest(packet->rxmngpacket, packet->connection, session->lastrecvpackethash);
/* Save remote sequence number */
session->remoteseqnumber = buildpacket->ctrlmsg.seq;
capwap_get_packet_digest((void*)packet->header, packet->packetsize, session->lastrecvpackethash);
/* Send */
for (i = 0; i < session->responsefragmentpacket->count; i++) {
struct capwap_packet* txpacket = (struct capwap_packet*)capwap_array_get_item_pointer(session->responsefragmentpacket, i);
ASSERT(txpacket != NULL);
if (!capwap_crypt_sendto(&session->ctrldtls, session->ctrlsocket.socket[session->ctrlsocket.type], txpacket->header, txpacket->packetsize, &session->acctrladdress, &session->wtpctrladdress)) {
/* Response is already created and saved. When receive a re-request, DFA autoresponse */
capwap_logging_debug("Warning: error to send echo response packet");
break;
}
}
}
}
/* Free memory */
capwap_build_packet_free(responsepacket);
}
/* Free */
capwap_free_element_echo_request(&echorequest, binding);
/* Send Configure response to WTP */
if (!capwap_crypt_sendto_fragmentpacket(&session->ctrldtls, session->ctrlsocket.socket[session->ctrlsocket.type], session->responsefragmentpacket, &session->acctrladdress, &session->wtpctrladdress)) {
/* Response is already created and saved. When receive a re-request, DFA autoresponse */
capwap_logging_debug("Warning: error to send echo response packet");
}
return 0;
}
/* */
int ac_dfa_state_run(struct ac_session_t* session, struct capwap_packet* packet) {
static int ac_send_data_keepalive(struct ac_session_t* session, struct capwap_parsed_packet* packet) {
struct capwap_list* txfragpacket;
struct capwap_header_data capwapheader;
struct capwap_packet_txmng* txmngpacket;
int result = -1;
/* Build packet */
capwap_header_init(&capwapheader, CAPWAP_RADIOID_NONE, GET_WBID_HEADER(packet->rxmngpacket->header));
capwap_header_set_keepalive_flag(&capwapheader, 1);
txmngpacket = capwap_packet_txmng_create_data_message(&capwapheader, session->mtu);
/* Add message element */
capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_SESSIONID, &session->sessionid);
/* Data keepalive complete, get fragment packets into local list */
txfragpacket = capwap_list_create();
capwap_packet_txmng_get_fragment_packets(txmngpacket, txfragpacket, 0);
if (txfragpacket->count == 1) {
/* Send Data keepalive to WTP */
if (capwap_crypt_sendto_fragmentpacket(&session->datadtls, session->datasocket.socket[session->datasocket.type], txfragpacket, &session->acdataaddress, &session->wtpdataaddress)) {
result = 0;
} else {
capwap_logging_debug("Warning: error to send data channel keepalive packet");
}
} else {
capwap_logging_debug("Warning: error to send data channel keepalive packet, fragment packet");
}
/* Free packets manager */
capwap_list_free(txfragpacket);
capwap_packet_txmng_free(txmngpacket);
return result;
}
/* */
int ac_dfa_state_run(struct ac_session_t* session, struct capwap_parsed_packet* packet) {
int status = AC_DFA_ACCEPT_PACKET;
ASSERT(session != NULL);
if (packet) {
struct capwap_build_packet* buildpacket;
buildpacket = capwap_rx_packet_create((void*)packet->header, packet->packetsize, packet->socket.isctrlsocket);
if (buildpacket) {
if (!capwap_build_packet_validate(buildpacket, NULL)) {
if (packet->socket.isctrlsocket) {
unsigned long typemsg = ntohl(buildpacket->ctrlmsg.type);
if (capwap_is_request_type(typemsg) || ((session->localseqnumber - 1) == buildpacket->ctrlmsg.seq)) {
switch (typemsg) {
case CAPWAP_CONFIGURATION_UPDATE_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_CHANGE_STATE_EVENT_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_ECHO_REQUEST: {
if (!receive_echo_request(session, buildpacket, packet)) {
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
} else {
ac_dfa_change_state(session, CAPWAP_RUN_TO_DTLS_TEARDOWN_STATE);
status = AC_DFA_NO_PACKET;
}
break;
}
case CAPWAP_CLEAR_CONFIGURATION_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_WTP_EVENT_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_DATA_TRANSFER_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_DATA_TRANSFER_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
}
}
} else {
if (IS_FLAG_K_HEADER(&buildpacket->header)) {
struct capwap_sessionid_element sessionid;
if (capwap_get_sessionid_from_keepalive(buildpacket, &sessionid)) {
if (!memcmp(&sessionid, &session->sessionid, sizeof(struct capwap_sessionid_element))) {
int result;
capwap_fragment_packet_array* txfragpacket;
/* Receive data packet keepalive, response with same packet */
txfragpacket = capwap_array_create(sizeof(struct capwap_packet), 0);
result = capwap_fragment_build_packet(buildpacket, txfragpacket, CAPWAP_DONT_FRAGMENT, 0);
if (!result) {
struct capwap_packet* txpacket;
ASSERT(txfragpacket->count == 1);
txpacket = (struct capwap_packet*)capwap_array_get_item_pointer(txfragpacket, 0);
ASSERT(txpacket != NULL);
if (!capwap_crypt_sendto(&session->datadtls, session->datasocket.socket[session->datasocket.type], txpacket->header, txpacket->packetsize, &session->acdataaddress, &session->wtpdataaddress)) {
capwap_logging_debug("Warning: error to send data channel keepalive packet");
result = -1;
}
}
/* */
capwap_fragment_free(txfragpacket);
capwap_array_free(txfragpacket);
if (result) {
ac_dfa_change_state(session, CAPWAP_RUN_TO_DTLS_TEARDOWN_STATE);
status = AC_DFA_NO_PACKET;
}
}
}
} else {
if (packet->rxmngpacket->isctrlpacket) {
if (capwap_is_request_type(packet->rxmngpacket->ctrlmsg.type) || ((session->localseqnumber - 1) == packet->rxmngpacket->ctrlmsg.seq)) {
switch (packet->rxmngpacket->ctrlmsg.type) {
case CAPWAP_CONFIGURATION_UPDATE_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_CHANGE_STATE_EVENT_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_ECHO_REQUEST: {
if (!receive_echo_request(session, packet)) {
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
} else {
ac_dfa_change_state(session, CAPWAP_RUN_TO_DTLS_TEARDOWN_STATE);
status = AC_DFA_NO_PACKET;
}
break;
}
case CAPWAP_CLEAR_CONFIGURATION_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_WTP_EVENT_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_DATA_TRANSFER_REQUEST: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
case CAPWAP_DATA_TRANSFER_RESPONSE: {
/* TODO */
capwap_set_timeout(AC_MAX_ECHO_INTERVAL, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
break;
}
}
}
/* Free */
capwap_build_packet_free(buildpacket);
} else {
if (IS_FLAG_K_HEADER(packet->rxmngpacket->header)) {
if (!memcmp(packet->messageelements.sessionid, &session->sessionid, sizeof(struct capwap_sessionid_element))) {
if (ac_send_data_keepalive(session, packet)) {
ac_dfa_change_state(session, CAPWAP_RUN_TO_DTLS_TEARDOWN_STATE);
status = AC_DFA_NO_PACKET;
}
}
} else {
/* TODO */
}
}
} else {
ac_dfa_change_state(session, CAPWAP_RUN_TO_DTLS_TEARDOWN_STATE);
@ -193,71 +156,49 @@ int ac_dfa_state_run(struct ac_session_t* session, struct capwap_packet* packet)
}
/* */
int ac_dfa_state_run_to_reset(struct ac_session_t* session, struct capwap_packet* packet) {
int ac_dfa_state_run_to_reset(struct ac_session_t* session, struct capwap_parsed_packet* packet) {
int status = AC_DFA_NO_PACKET;
struct capwap_build_packet* buildpacket;
struct capwap_header_data capwapheader;
struct capwap_packet_txmng* txmngpacket;
ASSERT(session != NULL);
ASSERT(packet == NULL);
/* Build packet */
buildpacket = capwap_tx_packet_create(CAPWAP_RADIOID_NONE, session->binding);
buildpacket->isctrlmsg = 1;
/* Prepare reset request */
capwap_build_packet_set_control_message_type(buildpacket, CAPWAP_RESET_REQUEST, session->localseqnumber++);
capwap_build_packet_add_message_element(buildpacket, CAPWAP_CREATE_IMAGEIDENTIFIER_ELEMENT(&session->startupimage));
capwap_header_init(&capwapheader, CAPWAP_RADIOID_NONE, session->binding);
txmngpacket = capwap_packet_txmng_create_ctrl_message(&capwapheader, CAPWAP_RESET_REQUEST, session->localseqnumber++, session->mtu);
/* Add message element */
capwap_packet_txmng_add_message_element(txmngpacket, CAPWAP_ELEMENT_IMAGEIDENTIFIER, &session->startupimage);
/* CAPWAP_CREATE_VENDORSPECIFICPAYLOAD_ELEMENT */ /* TODO */
if (!capwap_build_packet_validate(buildpacket, NULL)) {
int i;
int result;
/* Free old reference for this request */
ac_free_reference_last_request(session);
/* Send reset request to WTP */
result = capwap_fragment_build_packet(buildpacket, session->requestfragmentpacket, session->mtu, session->fragmentid);
if (result >= 0) {
if (result == 1) {
session->fragmentid++;
}
/* Send */
for (i = 0; i < session->requestfragmentpacket->count; i++) {
struct capwap_packet* txpacket = (struct capwap_packet*)capwap_array_get_item_pointer(session->requestfragmentpacket, i);
ASSERT(txpacket != NULL);
if (!capwap_crypt_sendto(&session->ctrldtls, session->ctrlsocket.socket[session->ctrlsocket.type], txpacket->header, txpacket->packetsize, &session->acctrladdress, &session->wtpctrladdress)) {
capwap_logging_debug("Warning: error to send reset request packet");
result = -1;
break;
}
}
}
if (result == -1) {
/* Error to send packets */
ac_free_reference_last_request(session);
ac_dfa_change_state(session, CAPWAP_RESET_TO_DTLS_TEARDOWN_STATE);
} else {
session->dfa.rfcRetransmitCount = 0;
capwap_killall_timeout(&session->timeout);
capwap_set_timeout(session->dfa.rfcRetransmitInterval, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
ac_dfa_change_state(session, CAPWAP_RESET_STATE);
status = AC_DFA_ACCEPT_PACKET;
}
/* Reset request complete, get fragment packets */
ac_free_reference_last_request(session);
capwap_packet_txmng_get_fragment_packets(txmngpacket, session->requestfragmentpacket, session->fragmentid);
if (session->requestfragmentpacket->count > 1) {
session->fragmentid++;
}
/* Free packets manager */
capwap_packet_txmng_free(txmngpacket);
/* Send Configure response to WTP */
if (capwap_crypt_sendto_fragmentpacket(&session->ctrldtls, session->ctrlsocket.socket[session->ctrlsocket.type], session->requestfragmentpacket, &session->acctrladdress, &session->wtpctrladdress)) {
session->dfa.rfcRetransmitCount = 0;
capwap_killall_timeout(&session->timeout);
capwap_set_timeout(session->dfa.rfcRetransmitInterval, &session->timeout, CAPWAP_TIMER_CONTROL_CONNECTION);
ac_dfa_change_state(session, CAPWAP_RESET_STATE);
status = AC_DFA_ACCEPT_PACKET;
} else {
capwap_logging_debug("Warning: error to send reset request packet");
ac_free_reference_last_request(session);
ac_dfa_change_state(session, CAPWAP_RESET_TO_DTLS_TEARDOWN_STATE);
}
/* Free memory */
capwap_build_packet_free(buildpacket);
return status;
}
/* */
int ac_dfa_state_run_to_dtlsteardown(struct ac_session_t* session, struct capwap_packet* packet) {
int ac_dfa_state_run_to_dtlsteardown(struct ac_session_t* session, struct capwap_parsed_packet* packet) {
return ac_session_teardown_connection(session);
}