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authordimitri staessens <dimitri.staessens@ugent.be>2017-02-23 00:24:08 +0100
committerdimitri staessens <dimitri.staessens@ugent.be>2017-02-23 00:24:08 +0100
commit3c43bb7b6f56f709a2098955726fdc8d4baa75f4 (patch)
tree850aee07707ef019e717a660ee3a334c7da4469b /src
parent406cf2d7a347222ef0526d1db0d3cb191c287656 (diff)
downloadouroboros-3c43bb7b6f56f709a2098955726fdc8d4baa75f4.tar.gz
ouroboros-3c43bb7b6f56f709a2098955726fdc8d4baa75f4.zip
irmd: Check IPCP name when creating an IPCP
Diffstat (limited to 'src')
-rw-r--r--src/irmd/main.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/src/irmd/main.c b/src/irmd/main.c
index d49193d3..f6328979 100644
--- a/src/irmd/main.c
+++ b/src/irmd/main.c
@@ -181,6 +181,19 @@ static struct ipcp_entry * get_ipcp_entry_by_api(pid_t api)
return NULL;
}
+static struct ipcp_entry * get_ipcp_entry_by_name(const char * name)
+{
+ struct list_head * p = NULL;
+
+ list_for_each(p, &irmd->ipcps) {
+ struct ipcp_entry * e = list_entry(p, struct ipcp_entry, next);
+ if (strcmp(name, e->name))
+ return e;
+ }
+
+ return NULL;
+}
+
/* Check if the name exists anywhere in a DIF. */
static pid_t get_ipcp_by_dst_name(char * dst_name)
{
@@ -228,9 +241,10 @@ static pid_t get_ipcp_by_dst_name(char * dst_name)
static pid_t create_ipcp(char * name,
enum ipcp_type ipcp_type)
{
- struct pid_el * api = NULL;
- struct ipcp_entry * tmp = NULL;
- struct list_head * p = NULL;
+ struct pid_el * api = NULL;
+ struct ipcp_entry * tmp = NULL;
+ struct list_head * p = NULL;
+ struct ipcp_entry * entry = NULL;
api = malloc(sizeof(*api));
if (api == NULL)
@@ -245,6 +259,14 @@ static pid_t create_ipcp(char * name,
pthread_rwlock_wrlock(&irmd->reg_lock);
+ entry = get_ipcp_entry_by_name(name);
+ if (entry != NULL) {
+ pthread_rwlock_unlock(&irmd->reg_lock);
+ pthread_rwlock_unlock(&irmd->state_lock);
+ log_err("IPCP by that name already exists.");
+ return -1;
+ }
+
api->pid = ipcp_create(name, ipcp_type);
if (api->pid == -1) {
pthread_rwlock_unlock(&irmd->reg_lock);