lib, irmd: Implement flow allocation timeout

Setting the timeouts on flow_alloc and flow_accept will now work. This
makes some changes to the UNIX sockets used for management
communication between the APs, IRMd and IPCPs.

1 files changed, 8 insertions, 6 deletions

diff --git a/src/irmd/ipcp.c b/src/irmd/ipcp.c
index a8263580..eb0c2de0 100644
--- a/src/irmd/ipcp.c
+++ b/src/irmd/ipcp.c
@@ -53,10 +53,12 @@ ipcp_msg_t * send_recv_ipcp_msg(pid_t        api,
        char * sock_path = NULL;
        ssize_t count = 0;
        ipcp_msg_t * recv_msg = NULL;
-
        struct timeval tv = {(SOCKET_TIMEOUT / 1000),
                             (SOCKET_TIMEOUT % 1000) * 1000};
 
+       if (kill(api, 0) < 0)
+               return NULL;
+
        sock_path = ipcp_sock_path(api);
        if (sock_path == NULL)
                return NULL;
@@ -67,10 +69,6 @@ ipcp_msg_t * send_recv_ipcp_msg(pid_t        api,
                return NULL;
        }
 
-       if (setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO,
-                      (void *) &tv, sizeof(tv)))
-               log_warn("Failed to set timeout on socket.");
-
        free(sock_path);
 
        buf.len = ipcp_msg__get_packed_size(msg);
@@ -85,6 +83,10 @@ ipcp_msg_t * send_recv_ipcp_msg(pid_t        api,
                return NULL;
        }
 
+       if (setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO,
+                      (void *) &tv, sizeof(tv)))
+               log_warn("Failed to set timeout on socket.");
+
        pthread_cleanup_push(close_ptr, (void *) &sockfd);
        pthread_cleanup_push((void (*)(void *)) free, (void *) buf.data);
 
@@ -184,7 +186,7 @@ int ipcp_destroy(pid_t api)
         return 0;
 }
 
-int ipcp_bootstrap(pid_t api,
+int ipcp_bootstrap(pid_t              api,
                    dif_config_msg_t * conf)
 {
         ipcp_msg_t msg = IPCP_MSG__INIT;