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- reimplemented proper IKE SA deletion using a seperate state,

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should conform now to IKEv2
This commit is contained in:
Martin Willi
2006-05-23 08:01:49 +00:00
parent 4acc8989ce
commit 4a5bba25e2
23 changed files with 1273 additions and 1017 deletions
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src/charon/sa/ike_sa_manager.c
+56 -41
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@@ -137,7 +137,7 @@ struct private_ike_sa_manager_t {
/**
* @brief Get next spi.
*
* We give out SPIs incremental starting at 1.
* We give out SPIs from a pseudo random source
*
* @param this the ike_sa_manager
* @return the next spi
@@ -232,7 +232,8 @@ static status_t get_entry_by_id(private_ike_sa_manager_t *this, ike_sa_id_t *ike
if ((current->ike_sa_id->get_initiator_spi(current->ike_sa_id) == ike_sa_id->get_initiator_spi(ike_sa_id))
&& (ike_sa_id->is_initiator(ike_sa_id) == current->ike_sa_id->is_initiator(current->ike_sa_id)))
{
this->logger->log(this->logger,CONTROL | LEVEL2,"Found entry by initiator spi %d",ike_sa_id->get_initiator_spi(ike_sa_id));
this->logger->log(this->logger, CONTROL|LEVEL2, "Found entry by initiator spi %d",
ike_sa_id->get_initiator_spi(ike_sa_id));
*entry = current;
status = SUCCESS;
break;
@@ -243,7 +244,8 @@ static status_t get_entry_by_id(private_ike_sa_manager_t *this, ike_sa_id_t *ike
if ((current->ike_sa_id->get_initiator_spi(current->ike_sa_id) == ike_sa_id->get_initiator_spi(ike_sa_id))
&& (ike_sa_id->is_initiator(ike_sa_id) == current->ike_sa_id->is_initiator(current->ike_sa_id)))
{
this->logger->log(this->logger,CONTROL | LEVEL2,"Found entry by initiator spi %d",ike_sa_id->get_initiator_spi(ike_sa_id));
this->logger->log(this->logger, CONTROL|LEVEL2, "Found entry by initiator spi %d",
ike_sa_id->get_initiator_spi(ike_sa_id));
*entry = current;
status = SUCCESS;
break;
@@ -251,7 +253,7 @@ static status_t get_entry_by_id(private_ike_sa_manager_t *this, ike_sa_id_t *ike
}
if (current->ike_sa_id->equals(current->ike_sa_id, ike_sa_id))
{
this->logger->log(this->logger,CONTROL | LEVEL2,"Found entry by full ID");
this->logger->log(this->logger, CONTROL|LEVEL2, "Found entry by full ID");
*entry = current;
status = SUCCESS;
break;
@@ -283,7 +285,7 @@ static status_t get_entry_by_sa(private_ike_sa_manager_t *this, ike_sa_t *ike_sa
/* only pointers are compared */
if (current->ike_sa == ike_sa)
{
this->logger->log(this->logger,CONTROL | LEVEL2,"Found entry by pointer");
this->logger->log(this->logger, CONTROL|LEVEL2, "Found entry by pointer");
*entry = current;
status = SUCCESS;
break;
@@ -305,7 +307,7 @@ static status_t delete_entry(private_ike_sa_manager_t *this, ike_sa_entry_t *ent
iterator = list->create_iterator(list, TRUE);
status = NOT_FOUND;
status = NOT_FOUND;
while (iterator->has_next(iterator))
{
@@ -313,7 +315,7 @@ static status_t delete_entry(private_ike_sa_manager_t *this, ike_sa_entry_t *ent
iterator->current(iterator, (void**)&current);
if (current == entry)
{
this->logger->log(this->logger,CONTROL | LEVEL2,"Found entry by pointer. Going to delete it.");
this->logger->log(this->logger, CONTROL|LEVEL2, "Found entry by pointer. Going to delete it.");
iterator->remove(iterator);
entry->destroy(entry);
status = SUCCESS;
@@ -360,7 +362,7 @@ static void create_and_checkout(private_ike_sa_manager_t *this,ike_sa_t **ike_sa
this->ike_sa_list->insert_last(this->ike_sa_list, new_ike_sa_entry);
/* check ike_sa out */
this->logger->log(this->logger,CONTROL | LEVEL1 ,"New IKE_SA created and added to list of known IKE_SA's");
this->logger->log(this->logger, CONTROL|LEVEL1, "New IKE_SA created and added to list of known IKE_SA's");
new_ike_sa_entry->checked_out = TRUE;
*ike_sa = new_ike_sa_entry->ike_sa;
@@ -397,7 +399,7 @@ static status_t checkout(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id,
/* can we give this ike_sa out to new requesters?*/
if (entry->driveout_new_threads)
{
this->logger->log(this->logger,CONTROL|LEVEL1,"Drive out new thread for existing IKE_SA");
this->logger->log(this->logger, CONTROL|LEVEL1, "Drive out new thread for existing IKE_SA");
/* no we can't */
retval = NOT_FOUND;
}
@@ -420,12 +422,12 @@ static status_t checkout(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id,
{
/* we must signal here, others are interested that we leave */
pthread_cond_signal(&(entry->condvar));
this->logger->log(this->logger,CONTROL|LEVEL1,"Drive out waiting thread for existing IKE_SA");
this->logger->log(this->logger, CONTROL|LEVEL1, "Drive out waiting thread for existing IKE_SA");
retval = NOT_FOUND;
}
else
{
this->logger->log(this->logger,CONTROL|LEVEL2,"IKE SA successfully checked out");
this->logger->log(this->logger, CONTROL|LEVEL2, "IKE SA successfully checked out");
/* ok, this IKE_SA is finally ours */
entry->checked_out = TRUE;
*ike_sa = entry->ike_sa;
@@ -436,7 +438,7 @@ static status_t checkout(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id,
}
else
{
this->logger->log(this->logger,ERROR | LEVEL1,"IKE SA not stored in known IKE_SA list");
this->logger->log(this->logger, ERROR|LEVEL1, "IKE SA not stored in known IKE_SA list");
/* looks like there is no such IKE_SA, better luck next time... */
/* DON'T use return, we must unlock the mutex! */
retval = NOT_FOUND;
@@ -467,7 +469,7 @@ static status_t checkout(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id,
this->ike_sa_list->insert_last(this->ike_sa_list, new_ike_sa_entry);
/* check ike_sa out */
this->logger->log(this->logger,CONTROL | LEVEL1 ,"IKE_SA added to list of known IKE_SA's");
this->logger->log(this->logger, CONTROL|LEVEL1 ,"IKE_SA added to list of known IKE_SA's");
new_ike_sa_entry->checked_out = TRUE;
*ike_sa = new_ike_sa_entry->ike_sa;
@@ -476,7 +478,7 @@ static status_t checkout(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id,
else
{
/* responder set, initiator not: here is something seriously wrong! */
this->logger->log(this->logger,ERROR | LEVEL1, "Invalid IKE_SA SPI's");
this->logger->log(this->logger, ERROR|LEVEL1, "Invalid IKE_SA SPI's");
/* DON'T use return, we must unlock the mutex! */
retval = INVALID_ARG;
}
@@ -644,13 +646,13 @@ static status_t checkin(private_ike_sa_manager_t *this, ike_sa_t *ike_sa)
entry->ike_sa_id->replace_values(entry->ike_sa_id, ike_sa->get_id(ike_sa));
/* signal waiting threads */
entry->checked_out = FALSE;
this->logger->log(this->logger,CONTROL | LEVEL1,"Checkin of IKE_SA successful.");
this->logger->log(this->logger, CONTROL|LEVEL1, "Checkin of IKE_SA successful.");
pthread_cond_signal(&(entry->condvar));
retval = SUCCESS;
}
else
{
this->logger->log(this->logger,ERROR,"Fatal Error: Tried to checkin nonexisting IKE_SA");
this->logger->log(this->logger, ERROR, "Tried to checkin nonexisting IKE_SA");
/* this SA is no more, this REALLY should not happen */
retval = NOT_FOUND;
}
@@ -660,9 +662,9 @@ static status_t checkin(private_ike_sa_manager_t *this, ike_sa_t *ike_sa)
/**
* Implementation of ike_sa_manager_t.checkin_and_delete.
* Implementation of ike_sa_manager_t.checkin_and_destroy.
*/
static status_t checkin_and_delete(private_ike_sa_manager_t *this, ike_sa_t *ike_sa)
static status_t checkin_and_destroy(private_ike_sa_manager_t *this, ike_sa_t *ike_sa)
{
/* deletion is a bit complex, we must garant that no thread is waiting for
* this SA.
@@ -682,21 +684,21 @@ static status_t checkin_and_delete(private_ike_sa_manager_t *this, ike_sa_t *ike
entry->driveout_waiting_threads = TRUE;
/* wait until all workers have done their work */
while (entry->waiting_threads > 0)
while (entry->waiting_threads)
{
/* let the other threads do some work*/
pthread_cond_signal(&(entry->condvar));
/* let the other threads leave the manager */
pthread_cond_broadcast(&(entry->condvar));
/* and the nice thing, they will wake us again when their work is done */
pthread_cond_wait(&(entry->condvar), &(this->mutex));
}
/* ok, we are alone now, no threads waiting in the entry's condvar */
this->delete_entry(this, entry);
this->logger->log(this->logger,CONTROL | LEVEL1,"Checkin and delete of IKE_SA successful");
this->logger->log(this->logger, CONTROL|LEVEL1, "Checkin and destroy of IKE_SA successful");
retval = SUCCESS;
}
else
{
this->logger->log(this->logger,ERROR,"Fatal Error: Tried to checkin and delete nonexisting IKE_SA");
this->logger->log(this->logger,ERROR, "Tried to checkin and delete nonexisting IKE_SA");
retval = NOT_FOUND;
}
@@ -707,7 +709,7 @@ static status_t checkin_and_delete(private_ike_sa_manager_t *this, ike_sa_t *ike
/**
* Implementation of ike_sa_manager_t.delete.
*/
static status_t delete(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id)
static status_t delete_(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id)
{
/* deletion is a bit complex, we must garant that no thread is waiting for
* this SA.
@@ -721,25 +723,38 @@ static status_t delete(private_ike_sa_manager_t *this, ike_sa_id_t *ike_sa_id)
if (this->get_entry_by_id(this, ike_sa_id, &entry) == SUCCESS)
{
/* mark it, so now new threads can acquire this SA */
entry->driveout_new_threads = TRUE;
/* wait until all workers have done their work */
while (entry->waiting_threads)
/* we try a delete. If it succeeds, our job is done here. The
* other peer will reply, and the IKE SA gets the finally deleted...
*/
if (entry->ike_sa->delete(entry->ike_sa) == SUCCESS)
{
/* wake up all */
pthread_cond_signal(&(entry->condvar));
/* and the nice thing, they will wake us again when their work is done */
pthread_cond_wait(&(entry->condvar), &(this->mutex));
this->logger->log(this->logger, CONTROL|LEVEL1, "Initiated delete for IKE_SA");
}
/* but if the IKE SA is not in a state where the deletion is negotiated with
* the other peer, we can destroy the IKE SA on our own. For this, we must
* be sure that really NO other threads are waiting for this SA...
*/
else
{
/* mark it, so now new threads can acquire this SA */
entry->driveout_new_threads = TRUE;
/* wait until all workers have done their work */
while (entry->waiting_threads)
{
/* wake up all */
pthread_cond_broadcast(&(entry->condvar));
/* and the nice thing, they will wake us again when their work is done */
pthread_cond_wait(&(entry->condvar), &(this->mutex));
}
/* ok, we are alone now, no threads waiting in the entry's condvar */
this->delete_entry(this, entry);
this->logger->log(this->logger, CONTROL|LEVEL1, "Destroyed IKE_SA");
}
/* ok, we are alone now, no threads waiting in the entry's condvar */
this->delete_entry(this, entry);
this->logger->log(this->logger,CONTROL | LEVEL1,"Delete of IKE_SA successful");
retval = SUCCESS;
}
else
{
this->logger->log(this->logger,ERROR,"Fatal Error: Tried to delete nonexisting IKE_SA");
this->logger->log(this->logger,ERROR, "Tried to delete nonexisting IKE_SA");
retval = NOT_FOUND;
}
@@ -782,9 +797,9 @@ static void destroy(private_ike_sa_manager_t *this)
while (entry->waiting_threads)
{
/* wake up all */
pthread_cond_signal(&(entry->condvar));
pthread_cond_broadcast(&(entry->condvar));
/* go sleeping until they are gone */
pthread_cond_wait(&(entry->condvar), &(this->mutex));
pthread_cond_wait(&(entry->condvar), &(this->mutex));
}
}
this->logger->log(this->logger,CONTROL | LEVEL2,"Delete all IKE_SA's");
@@ -821,8 +836,8 @@ ike_sa_manager_t *ike_sa_manager_create()
this->public.get_ike_sa_list_by_name = (linked_list_t*(*)(ike_sa_manager_t*,const char*))get_ike_sa_list_by_name;
this->public.log_status = (void(*)(ike_sa_manager_t*,logger_t*,char*))log_status;
this->public.checkin = (status_t(*)(ike_sa_manager_t*,ike_sa_t*))checkin;
this->public.delete = (status_t(*)(ike_sa_manager_t*,ike_sa_id_t*))delete;
this->public.checkin_and_delete = (status_t(*)(ike_sa_manager_t*,ike_sa_t*))checkin_and_delete;
this->public.delete = (status_t(*)(ike_sa_manager_t*,ike_sa_id_t*))delete_;
this->public.checkin_and_destroy = (status_t(*)(ike_sa_manager_t*,ike_sa_t*))checkin_and_destroy;
/* initialize private functions */
this->get_next_spi = get_next_spi;