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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-08-25 08:35:53 +0200
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-08-25 08:35:53 +0200
commit5b74bb43d36624c4cfb81d5b37833ea241061b26 (patch)
tree5f8beaf7290fc4d5b65c1acc27f7bc75e7ed6b55 /src/irmd/main.c
parent103325209373f0aec818efd775f91243eb912a33 (diff)
parent7147313663c738c87ef98b8a9f965c7f6dc185a0 (diff)
downloadouroboros-5b74bb43d36624c4cfb81d5b37833ea241061b26.tar.gz
ouroboros-5b74bb43d36624c4cfb81d5b37833ea241061b26.zip
Merged in dstaesse/ouroboros/be-irmd-fix (pull request #222)
Fix locks
Diffstat (limited to 'src/irmd/main.c')
-rw-r--r--src/irmd/main.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/src/irmd/main.c b/src/irmd/main.c
index 8ac645df..5f793afd 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -425,7 +425,7 @@ static int enroll_ipcp(pid_t api,
return -1;
}
- pthread_rwlock_rdlock(&irmd->reg_lock);
+ pthread_rwlock_wrlock(&irmd->reg_lock);
entry = get_ipcp_entry_by_api(api);
if (entry == NULL) {
@@ -435,6 +435,13 @@ static int enroll_ipcp(pid_t api,
return -1;
}
+ if (entry->dif_name != NULL) {
+ pthread_rwlock_unlock(&irmd->reg_lock);
+ pthread_rwlock_unlock(&irmd->state_lock);
+ LOG_ERR("IPCP in wrong state");
+ return -1;
+ }
+
entry->dif_name = strdup(dif_name);
if (entry->dif_name == NULL) {
pthread_rwlock_unlock(&irmd->reg_lock);
@@ -443,7 +450,12 @@ static int enroll_ipcp(pid_t api,
return -1;
}
+ pthread_rwlock_unlock(&irmd->reg_lock);
+ pthread_rwlock_unlock(&irmd->state_lock);
+
if (ipcp_enroll(api, dif_name)) {
+ pthread_rwlock_rdlock(&irmd->state_lock);
+ pthread_rwlock_wrlock(&irmd->reg_lock);
free(entry->dif_name);
entry->dif_name = NULL;
pthread_rwlock_unlock(&irmd->reg_lock);
@@ -452,11 +464,8 @@ static int enroll_ipcp(pid_t api,
return -1;
}
- pthread_rwlock_unlock(&irmd->reg_lock);
- pthread_rwlock_unlock(&irmd->state_lock);
-
LOG_INFO("Enrolled IPCP %d in DIF %s.",
- entry->api, dif_name);
+ api, dif_name);
return 0;
}