vb@1476
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1 |
#include "pEp_internal.h"
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#include "sync_fsm.h"
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// state machine for DeviceState
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DeviceState_state fsm_DeviceState(
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PEP_SESSION session,
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DeviceState_state state,
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DeviceState_event event,
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Identity partner,
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void *extra,
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time_t *timeout
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)
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{
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int cond_result;
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PEP_STATUS status = PEP_STATUS_OK;
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switch (state) {
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case InitState:
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{
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*timeout = 0;
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switch (event) {
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case Init:
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{
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cond_result = storedGroupKeys(session);
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if (cond_result < 0)
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return cond_result;
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if (cond_result) {
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return Grouped;
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}
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return Sole;
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}
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default:
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return (DeviceState_state) invalid_event;
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}
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break;
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}
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case Sole:
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{
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*timeout = 0;
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switch (event) {
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case Init: break;
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case KeyGen:
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{
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status = sendBeacon(session, state, NULL, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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break;
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}
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case CannotDecrypt:
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{
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status = sendBeacon(session, state, NULL, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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break;
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}
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case Beacon:
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{
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status = sendHandshakeRequest(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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break;
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}
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case HandshakeRequest:
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{
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status = sendHandshakeRequest(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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session->sync_state_payload = identity_dup(partner);
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return HandshakingSole;
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}
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default:
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return (DeviceState_state) invalid_event;
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}
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break;
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}
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case HandshakingSole:
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{
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Identity expected = (Identity)session->sync_state_payload;
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*timeout = 600;
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switch (event) {
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case Init:
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{
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cond_result = keyElectionWon(session, partner);
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if (cond_result < 0)
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return cond_result;
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if (cond_result) {
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status = notifyInitFormGroup(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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}
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else {
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status = notifyInitAddOurDevice(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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}
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break;
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}
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case HandshakeRejected:
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{
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status = rejectHandshake(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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if(session->sync_state_payload){
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free_identity((Identity)session->sync_state_payload);
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session->sync_state_payload = NULL;
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}
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return Sole;
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}
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case HandshakeAccepted:
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{
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status = acceptHandshake(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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cond_result = keyElectionWon(session, partner);
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if (cond_result < 0)
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return cond_result;
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if (cond_result) {
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status = sendGroupKeys(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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status = notifyAcceptedGroupCreated(session, state, partner, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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if(session->sync_state_payload){
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free_identity((Identity)session->sync_state_payload);
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session->sync_state_payload = NULL;
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}
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return Grouped;
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}
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if(session->sync_state_payload){
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free_identity((Identity)session->sync_state_payload);
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session->sync_state_payload = NULL;
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}
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session->sync_state_payload = identity_dup(partner);
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return WaitForGroupKeysSole;
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}
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case Cancel:
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{
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if(session->sync_state_payload){
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free_identity((Identity)session->sync_state_payload);
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session->sync_state_payload = NULL;
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}
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return Sole;
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}
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case Timeout:
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{
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status = notifyTimeout(session, state, expected, NULL);
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if (status == PEP_OUT_OF_MEMORY)
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return (int) invalid_out_of_memory;
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if (status != PEP_STATUS_OK)
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return (int) invalid_action;
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if(session->sync_state_payload){
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free_identity((Identity)session->sync_state_payload);
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session->sync_state_payload = NULL;
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176 |
}
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return Sole;
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}
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default:
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return (DeviceState_state) invalid_event;
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181 |
}
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break;
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}
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case WaitForGroupKeysSole:
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185 |
{
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Identity expected = (Identity)session->sync_state_payload;
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187 |
*timeout = 600;
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188 |
switch (event) {
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189 |
case Init: break;
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190 |
case GroupKeys:
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191 |
{
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edouard@1467
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192 |
status = storeGroupKeys(session, state, partner, extra /*keys*/);
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193 |
if (status == PEP_OUT_OF_MEMORY)
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194 |
return (int) invalid_out_of_memory;
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195 |
if (status != PEP_STATUS_OK)
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196 |
return (int) invalid_action;
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edouard@1477
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197 |
status = notifyAcceptedDeviceAdded(session, state, partner, NULL);
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198 |
if (status == PEP_OUT_OF_MEMORY)
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199 |
return (int) invalid_out_of_memory;
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200 |
if (status != PEP_STATUS_OK)
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201 |
return (int) invalid_action;
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202 |
if(session->sync_state_payload){
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203 |
free_identity((Identity)session->sync_state_payload);
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204 |
session->sync_state_payload = NULL;
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205 |
}
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edouard@1467
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206 |
return Grouped;
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207 |
}
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edouard@1467
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208 |
case Timeout:
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edouard@1467
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209 |
{
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edouard@1477
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210 |
status = notifyTimeout(session, state, expected, NULL);
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211 |
if (status == PEP_OUT_OF_MEMORY)
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edouard@1467
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212 |
return (int) invalid_out_of_memory;
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edouard@1467
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213 |
if (status != PEP_STATUS_OK)
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edouard@1467
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214 |
return (int) invalid_action;
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edouard@1467
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215 |
if(session->sync_state_payload){
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edouard@1467
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216 |
free_identity((Identity)session->sync_state_payload);
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edouard@1467
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217 |
session->sync_state_payload = NULL;
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edouard@1467
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218 |
}
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edouard@1467
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219 |
return Sole;
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edouard@1467
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220 |
}
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edouard@1467
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221 |
default:
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edouard@1467
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222 |
return (DeviceState_state) invalid_event;
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edouard@1467
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223 |
}
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edouard@1467
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224 |
break;
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edouard@1467
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225 |
}
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edouard@1467
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226 |
case Grouped:
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edouard@1467
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227 |
{
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edouard@1467
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228 |
*timeout = 0;
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edouard@1467
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229 |
switch (event) {
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edouard@1467
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230 |
case Init:
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edouard@1467
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231 |
{
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edouard@1467
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232 |
status = enterGroup(session, state, NULL, NULL);
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edouard@1467
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233 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
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234 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
235 |
if (status != PEP_STATUS_OK)
|
edouard@1467
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236 |
return (int) invalid_action;
|
edouard@1467
|
237 |
break;
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edouard@1467
|
238 |
}
|
edouard@1467
|
239 |
case KeyGen:
|
edouard@1467
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240 |
{
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edouard@1467
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241 |
status = sendGroupUpdate(session, state, NULL, NULL);
|
edouard@1467
|
242 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
243 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
244 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
245 |
return (int) invalid_action;
|
edouard@1467
|
246 |
break;
|
edouard@1467
|
247 |
}
|
edouard@1467
|
248 |
case CannotDecrypt:
|
edouard@1467
|
249 |
{
|
edouard@1467
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250 |
status = sendUpdateRequest(session, state, NULL, NULL);
|
edouard@1467
|
251 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
252 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
253 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
254 |
return (int) invalid_action;
|
edouard@1467
|
255 |
break;
|
edouard@1467
|
256 |
}
|
edouard@1467
|
257 |
case UpdateRequest:
|
edouard@1467
|
258 |
{
|
edouard@1467
|
259 |
status = sendGroupUpdate(session, state, NULL, NULL);
|
edouard@1467
|
260 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
261 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
262 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
263 |
return (int) invalid_action;
|
edouard@1467
|
264 |
break;
|
edouard@1467
|
265 |
}
|
edouard@1467
|
266 |
case Beacon:
|
edouard@1467
|
267 |
{
|
edouard@1467
|
268 |
status = sendHandshakeRequest(session, state, partner, NULL);
|
edouard@1467
|
269 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
270 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
271 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
272 |
return (int) invalid_action;
|
edouard@1467
|
273 |
break;
|
edouard@1467
|
274 |
}
|
edouard@1467
|
275 |
case HandshakeRequest:
|
edouard@1467
|
276 |
{
|
edouard@1467
|
277 |
status = sendHandshakeRequest(session, state, partner, NULL);
|
edouard@1467
|
278 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
279 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
280 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
281 |
return (int) invalid_action;
|
edouard@1467
|
282 |
session->sync_state_payload = identity_dup(partner);
|
edouard@1467
|
283 |
return HandshakingGrouped;
|
edouard@1467
|
284 |
}
|
edouard@1467
|
285 |
case GroupUpdate:
|
edouard@1467
|
286 |
{
|
edouard@1467
|
287 |
status = storeGroupKeys(session, state, partner, extra /*keys*/);
|
edouard@1467
|
288 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
289 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
290 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
291 |
return (int) invalid_action;
|
edouard@1467
|
292 |
break;
|
edouard@1467
|
293 |
}
|
edouard@1467
|
294 |
default:
|
edouard@1467
|
295 |
return (DeviceState_state) invalid_event;
|
edouard@1467
|
296 |
}
|
edouard@1467
|
297 |
break;
|
edouard@1467
|
298 |
}
|
edouard@1467
|
299 |
case HandshakingGrouped:
|
edouard@1467
|
300 |
{
|
edouard@1467
|
301 |
Identity expected = (Identity)session->sync_state_payload;
|
edouard@1467
|
302 |
*timeout = 600;
|
edouard@1467
|
303 |
switch (event) {
|
edouard@1467
|
304 |
case Init:
|
edouard@1467
|
305 |
{
|
edouard@1477
|
306 |
status = notifyInitAddOurDevice(session, state, partner, NULL);
|
edouard@1467
|
307 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
308 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
309 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
310 |
return (int) invalid_action;
|
edouard@1467
|
311 |
break;
|
edouard@1467
|
312 |
}
|
edouard@1467
|
313 |
case HandshakeRejected:
|
edouard@1467
|
314 |
{
|
edouard@1467
|
315 |
status = rejectHandshake(session, state, partner, NULL);
|
edouard@1467
|
316 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
317 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
318 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
319 |
return (int) invalid_action;
|
edouard@1467
|
320 |
if(session->sync_state_payload){
|
edouard@1467
|
321 |
free_identity((Identity)session->sync_state_payload);
|
edouard@1467
|
322 |
session->sync_state_payload = NULL;
|
edouard@1467
|
323 |
}
|
edouard@1467
|
324 |
return Grouped;
|
edouard@1467
|
325 |
}
|
edouard@1467
|
326 |
case HandshakeAccepted:
|
edouard@1467
|
327 |
{
|
edouard@1467
|
328 |
status = acceptHandshake(session, state, partner, NULL);
|
edouard@1467
|
329 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
330 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
331 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
332 |
return (int) invalid_action;
|
edouard@1467
|
333 |
status = sendGroupKeys(session, state, partner, NULL);
|
edouard@1467
|
334 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
335 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
336 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
337 |
return (int) invalid_action;
|
edouard@1467
|
338 |
if(session->sync_state_payload){
|
edouard@1467
|
339 |
free_identity((Identity)session->sync_state_payload);
|
edouard@1467
|
340 |
session->sync_state_payload = NULL;
|
edouard@1467
|
341 |
}
|
edouard@1467
|
342 |
return Grouped;
|
edouard@1467
|
343 |
}
|
edouard@1467
|
344 |
case Timeout:
|
edouard@1467
|
345 |
{
|
edouard@1477
|
346 |
status = notifyTimeout(session, state, expected, NULL);
|
edouard@1467
|
347 |
if (status == PEP_OUT_OF_MEMORY)
|
edouard@1467
|
348 |
return (int) invalid_out_of_memory;
|
edouard@1467
|
349 |
if (status != PEP_STATUS_OK)
|
edouard@1467
|
350 |
return (int) invalid_action;
|
edouard@1467
|
351 |
if(session->sync_state_payload){
|
edouard@1467
|
352 |
free_identity((Identity)session->sync_state_payload);
|
edouard@1467
|
353 |
session->sync_state_payload = NULL;
|
edouard@1467
|
354 |
}
|
edouard@1467
|
355 |
return Grouped;
|
edouard@1467
|
356 |
}
|
edouard@1467
|
357 |
default:
|
edouard@1467
|
358 |
return (DeviceState_state) invalid_event;
|
edouard@1467
|
359 |
}
|
edouard@1467
|
360 |
break;
|
edouard@1467
|
361 |
}
|
edouard@1467
|
362 |
default:
|
edouard@1467
|
363 |
return (DeviceState_state) invalid_state;
|
edouard@1467
|
364 |
}
|
edouard@1467
|
365 |
|
edouard@1467
|
366 |
return state;
|
edouard@1467
|
367 |
}
|
edouard@1467
|
368 |
|