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-rw-r--r--src/libcharon/sa/ikev2/tasks/child_create.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/libcharon/sa/ikev2/tasks/child_create.c b/src/libcharon/sa/ikev2/tasks/child_create.c
index f0cb24a72..1148eba7d 100644
--- a/src/libcharon/sa/ikev2/tasks/child_create.c
+++ b/src/libcharon/sa/ikev2/tasks/child_create.c
@@ -171,6 +171,11 @@ struct private_child_create_t {
* whether the CHILD_SA rekeys an existing one
*/
bool rekey;
+
+ /**
+ * whether we are retrying with another DH group
+ */
+ bool retry;
};
/**
@@ -725,7 +730,7 @@ METHOD(task_t, build_i, status_t,
message->add_notify(message, FALSE, NO_PROPOSAL_CHOSEN, chunk_empty);
return SUCCESS;
}
- if (this->dh_group == MODP_NONE)
+ if (!this->retry)
{
this->dh_group = this->config->get_dh_group(this->config);
}
@@ -1112,6 +1117,7 @@ METHOD(task_t, process_i, status_t,
DBG1(DBG_IKE, "peer didn't accept DH group %N, "
"it requested %N", diffie_hellman_group_names,
this->dh_group, diffie_hellman_group_names, group);
+ this->retry = TRUE;
this->dh_group = group;
this->public.task.migrate(&this->public.task, this->ike_sa);
enumerator->destroy(enumerator);
@@ -1322,6 +1328,7 @@ child_create_t *child_create_create(ike_sa_t *ike_sa,
.ipcomp = IPCOMP_NONE,
.ipcomp_received = IPCOMP_NONE,
.rekey = rekey,
+ .retry = FALSE,
);
if (config)