charon-cmd: use a copy of pid in initiate callback

When cancelling a connection that gets established, cmd_connection_t gets
freed before terminate() is called. This results in kill()ing invalid PID.

diff --git a/src/charon-cmd/cmd/cmd_connection.c b/src/charon-cmd/cmd/cmd_connection.c
index 435d94321f926192e98fe3aa56d173cfcc41a7dc..2d995f0cd01c2cb264870e77e128288f0f1adf9f 100644 (file)
--- a/src/charon-cmd/cmd/cmd_connection.c
+++ b/src/charon-cmd/cmd/cmd_connection.c
@@ -115,9 +115,9 @@ struct private_cmd_connection_t {
 /**
  * Shut down application
  */
-static void terminate(private_cmd_connection_t *this)
+static void terminate(pid_t pid)
 {
-       kill(this->pid, SIGUSR1);
+       kill(pid, SIGUSR1);
 }
 
 /**
@@ -329,17 +329,18 @@ static job_requeue_t initiate(private_cmd_connection_t *this)
 {
        peer_cfg_t *peer_cfg;
        child_cfg_t *child_cfg;
+       pid_t pid = this->pid;
 
        if (!this->host)
        {
                DBG1(DBG_CFG, "unable to initiate, missing --host option");
-               terminate(this);
+               terminate(pid);
                return JOB_REQUEUE_NONE;
        }
        if (!this->identity)
        {
                DBG1(DBG_CFG, "unable to initiate, missing --identity option");
-               terminate(this);
+               terminate(pid);
                return JOB_REQUEUE_NONE;
        }
 
@@ -348,7 +349,7 @@ static job_requeue_t initiate(private_cmd_connection_t *this)
        if (!add_auth_cfgs(this, peer_cfg))
        {
                peer_cfg->destroy(peer_cfg);
-               terminate(this);
+               terminate(pid);
                return JOB_REQUEUE_NONE;
        }
 
@@ -358,7 +359,7 @@ static job_requeue_t initiate(private_cmd_connection_t *this)
        if (charon->controller->initiate(charon->controller, peer_cfg, child_cfg,
                                                                         controller_cb_empty, NULL, 0) != SUCCESS)
        {
-               terminate(this);
+               terminate(pid);
        }
        return JOB_REQUEUE_NONE;
 }