unsigned int
event_subscribe(unsigned int event_id, ptrEventCallback callback) {
Subscriber *subscriber;
Subscriber *cur_sub;
LOG_DEBUG("Adding new subscriber to event ID %d...", event_id);
subscriber = malloc(sizeof(Subscriber));
if (subscriber == NULL) {
LOG_SEVERE("Could not assign new subscriber for event %d. In " \
"sufficient memory.", event_id);
return;
}
memset(subscriber, '\0', sizeof(Subscriber));
subscriber->id = ++last_subscriber_id;
subscriber->event_id = event_id;
subscriber->callback = malloc(sizeof(ptrEventCallback));
if (subscriber->callback == NULL) {
LOG_SEVERE("Could not assign new subscriber for event %d. In " \
"sufficient memory.", event_id);
free(subscriber);
return;
}
memcpy(subscriber->callback, callback, sizeof(ptrEventCallback));
// add the subscriber to the list
queue_push(event_subscribers, subscriber);
LOG_DEBUG("Subscriber added %d", subscriber->id);
return subscriber->id;
}
/**
* context: {node, link}
* tokens: {node-address, destination-prefix, area}
*/
int cli_net_node_link_ospf_area(SCliContext * pContext, STokens * pTokens)
{
net_node_t * pNode;
ospf_area_t tArea;
int iReturn = CLI_SUCCESS;
net_iface_t * pLink;
pLink = (net_iface_t *) cli_context_get_item_at_top(pContext);
pNode = (net_node_t *) cli_context_get_item_at(pContext, 0);
if (tokens_get_uint_at(pTokens, 2, &tArea)) {
LOG_SEVERE("Error: invalid value for ospf-area (%s)\n",
tokens_get_string_at(pTokens, 2));
return CLI_ERROR_COMMAND_FAILED;
}
//link_get_prefix(pLink, &sDestPrefix);
switch(link_set_ospf_area(pLink, tArea)){
case OSPF_LINK_OK :
break;
case OSPF_LINK_TO_MYSELF_NOT_IN_AREA :
LOG_SEVERE("Warning: ospf area link is changed\n");
break;
case OSPF_SOURCE_NODE_NOT_IN_AREA :
LOG_SEVERE("Error: source node must belong to area\n");
iReturn = CLI_ERROR_COMMAND_FAILED;
break;
case OSPF_DEST_NODE_NOT_IN_AREA :
LOG_SEVERE("Error: destination node must belongs to area\n");
iReturn = CLI_ERROR_COMMAND_FAILED;
break;
case OSPF_DEST_SUBNET_NOT_IN_AREA :
LOG_SEVERE("Error: destination subnet must belongs to area\n");
iReturn = CLI_ERROR_COMMAND_FAILED;
break;
case OSPF_SOURCE_NODE_LINK_MISSING : //never verified because link is found in context
LOG_SEVERE("Error: link is not present\n");
iReturn = CLI_ERROR_COMMAND_FAILED;
break;
default : LOG_SEVERE("Error: unknown reasons\n");
iReturn = CLI_ERROR_COMMAND_FAILED;
}
return iReturn;
}
/**
* context: {subnet}
* tokens: {area}
*/
int cli_net_subnet_ospf_area(SCliContext * pContext, STokens * pTokens)
{
net_subnet_t * pSubnet;
ospf_area_t uArea;
// Get node from context
pSubnet= (net_subnet_t *) cli_context_get_item_at_top(pContext);
// set subnet ospf area
tokens_get_uint_at(pTokens, 1, &uArea);
if (subnet_set_OSPFArea(pSubnet, uArea) != 0) {
LOG_SEVERE("Warning: correctness of ospf are info of links on subnet is not guaranteed!\n");
return CLI_SUCCESS;
}
return CLI_SUCCESS;
}
