Fix: Memory leaks of allocated URIs

[lttng-tools.git] / src / bin / lttng-sessiond / main.c

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 1c5623bc3282c980840ff06f361244e8ac2f497b..41cdf112687c86fc60af8d832b07684dfc4c49bd 100644 (file)
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1926,6 +1926,15 @@ static int copy_session_consumer(int domain, struct ltt_session *session)
        switch (domain) {
        case LTTNG_DOMAIN_KERNEL:
                DBG3("Copying tracing session consumer output in kernel session");
+               /*
+                * XXX: We should audit the session creation and what this function
+                * does "extra" in order to avoid a destroy since this function is used
+                * in the domain session creation (kernel and ust) only. Same for UST
+                * domain.
+                */
+               if (session->kernel_session->consumer) {
+                       consumer_destroy_output(session->kernel_session->consumer);
+               }
                session->kernel_session->consumer =
                        consumer_copy_output(session->consumer);
                /* Ease our life a bit for the next part */
@@ -1934,6 +1943,9 @@ static int copy_session_consumer(int domain, struct ltt_session *session)
                break;
        case LTTNG_DOMAIN_UST:
                DBG3("Copying tracing session consumer output in UST session");
+               if (session->ust_session->consumer) {
+                       consumer_destroy_output(session->ust_session->consumer);
+               }
                session->ust_session->consumer =
                        consumer_copy_output(session->consumer);
                /* Ease our life a bit for the next part */
@@ -2102,6 +2114,7 @@ static int process_client_msg(struct command_ctx *cmd_ctx, int sock,
        case LTTNG_LIST_DOMAINS:
        case LTTNG_START_TRACE:
        case LTTNG_STOP_TRACE:
+       case LTTNG_DATA_AVAILABLE:
                need_domain = 0;
                break;
        default:
@@ -2540,12 +2553,14 @@ skip_domain:
                        DBG("No URIs received from client... continuing");
                        *sock_error = 1;
                        ret = LTTNG_ERR_SESSION_FAIL;
+                       free(uris);
                        goto error;
                }
 
                ret = cmd_set_consumer_uri(cmd_ctx->lsm->domain.type, cmd_ctx->session,
                                nb_uri, uris);
                if (ret != LTTNG_OK) {
+                       free(uris);
                        goto error;
                }
 
@@ -2566,6 +2581,8 @@ skip_domain:
                        }
                }
 
+               free(uris);
+
                break;
        }
        case LTTNG_START_TRACE:
@@ -2600,12 +2617,14 @@ skip_domain:
                                DBG("No URIs received from client... continuing");
                                *sock_error = 1;
                                ret = LTTNG_ERR_SESSION_FAIL;
+                               free(uris);
                                goto error;
                        }
 
                        if (nb_uri == 1 && uris[0].dtype != LTTNG_DST_PATH) {
                                DBG("Creating session with ONE network URI is a bad call");
                                ret = LTTNG_ERR_SESSION_FAIL;
+                               free(uris);
                                goto error;
                        }
                }
@@ -2613,6 +2632,8 @@ skip_domain:
                ret = cmd_create_session_uri(cmd_ctx->lsm->session.name, uris, nb_uri,
                        &cmd_ctx->creds);
 
+               free(uris);
+
                break;
        }
        case LTTNG_DESTROY_SESSION:
@@ -2788,6 +2809,11 @@ skip_domain:
                                bytecode);
                break;
        }
+       case LTTNG_DATA_AVAILABLE:
+       {
+               ret = cmd_data_available(cmd_ctx->session);
+               break;
+       }
        default:
                ret = LTTNG_ERR_UND;
                break;