#include "common/buffer-view.h"
#include "common/compat/socket.h"
-#include "common/dynamic-buffer.h"
#include "common/dynamic-array.h"
-#include "common/payload.h"
-#include "common/payload-view.h"
+#include "common/dynamic-buffer.h"
#include "common/fd-handle.h"
-#include "common/sessiond-comm/sessiond-comm.h"
-#include "common/payload.h"
#include "common/payload-view.h"
+#include "common/payload.h"
+#include "common/sessiond-comm/sessiond-comm.h"
#include "lttng/lttng-error.h"
#include "lttng/tracker.h"
#include <common/compat/getenv.h>
#include <common/tracker.h>
#include <common/unix.h>
#include <common/utils.h>
+#include <lttng/error-query-internal.h>
#include <lttng/event-internal.h>
#include <lttng/session-descriptor-internal.h>
#include <lttng/session-internal.h>
#include <sys/stat.h>
#include <unistd.h>
+#include "agent-thread.h"
+#include "clear.h"
#include "client.h"
-#include "lttng-sessiond.h"
#include "cmd.h"
+#include "health-sessiond.h"
#include "kernel.h"
+#include "lttng-sessiond.h"
+#include "manage-consumer.h"
#include "save.h"
-#include "health-sessiond.h"
#include "testpoint.h"
#include "utils.h"
-#include "manage-consumer.h"
-#include "clear.h"
-#include "agent-thread.h"
static bool is_root;
return ret_code;
}
+static enum lttng_error_code receive_lttng_error_query(struct command_ctx *cmd_ctx,
+ int sock,
+ int *sock_error,
+ struct lttng_error_query **_query)
+{
+ int ret;
+ size_t query_len;
+ ssize_t sock_recv_len;
+ enum lttng_error_code ret_code;
+ struct lttng_payload query_payload;
+ struct lttng_error_query *query = NULL;
+
+ lttng_payload_init(&query_payload);
+ query_len = (size_t) cmd_ctx->lsm.u.error_query.length;
+ ret = lttng_dynamic_buffer_set_size(&query_payload.buffer, query_len);
+ if (ret) {
+ ret_code = LTTNG_ERR_NOMEM;
+ goto end;
+ }
+
+ sock_recv_len = lttcomm_recv_unix_sock(
+ sock, query_payload.buffer.data, query_len);
+ if (sock_recv_len < 0 || sock_recv_len != query_len) {
+ ERR("Failed to receive error query in command payload");
+ *sock_error = 1;
+ ret_code = LTTNG_ERR_INVALID_PROTOCOL;
+ goto end;
+ }
+
+ /* Receive fds, if any. */
+ if (cmd_ctx->lsm.fd_count > 0) {
+ sock_recv_len = lttcomm_recv_payload_fds_unix_sock(
+ sock, cmd_ctx->lsm.fd_count, &query_payload);
+ if (sock_recv_len > 0 &&
+ sock_recv_len != cmd_ctx->lsm.fd_count * sizeof(int)) {
+ ERR("Failed to receive all file descriptors for error query in command payload: expected fd count = %u, ret = %d",
+ cmd_ctx->lsm.fd_count, (int) ret);
+ ret_code = LTTNG_ERR_INVALID_PROTOCOL;
+ *sock_error = 1;
+ goto end;
+ } else if (sock_recv_len <= 0) {
+ ERR("Failed to receive file descriptors for error query in command payload: expected fd count = %u, ret = %d",
+ cmd_ctx->lsm.fd_count, (int) ret);
+ ret_code = LTTNG_ERR_FATAL;
+ *sock_error = 1;
+ goto end;
+ }
+ }
+
+ /* Deserialize error query. */
+ {
+ struct lttng_payload_view view =
+ lttng_payload_view_from_payload(
+ &query_payload, 0, -1);
+
+ if (lttng_error_query_create_from_payload(&view, &query) !=
+ query_len) {
+ ERR("Invalid error query received as part of command payload");
+ ret_code = LTTNG_ERR_INVALID_PROTOCOL;
+ goto end;
+ }
+ }
+
+ *_query = query;
+ ret_code = LTTNG_OK;
+
+end:
+ lttng_payload_reset(&query_payload);
+ return ret_code;
+}
+
/*
* Version of setup_lttng_msg() without command header.
*/
case LTTNG_SESSION_LIST_ROTATION_SCHEDULES:
case LTTNG_CLEAR_SESSION:
case LTTNG_LIST_TRIGGERS:
+ case LTTNG_EXECUTE_ERROR_QUERY:
need_domain = false;
break;
default:
switch (cmd_ctx->lsm.cmd_type) {
case LTTNG_REGISTER_TRIGGER:
case LTTNG_UNREGISTER_TRIGGER:
+ case LTTNG_EXECUTE_ERROR_QUERY:
need_consumerd = false;
break;
default:
case LTTNG_ROTATION_GET_INFO:
case LTTNG_REGISTER_TRIGGER:
case LTTNG_LIST_TRIGGERS:
+ case LTTNG_EXECUTE_ERROR_QUERY:
break;
default:
/* Setup lttng message with no payload */
case LTTNG_REGISTER_TRIGGER:
case LTTNG_UNREGISTER_TRIGGER:
case LTTNG_LIST_TRIGGERS:
+ case LTTNG_EXECUTE_ERROR_QUERY:
need_tracing_session = false;
break;
default:
ret = LTTNG_OK;
break;
}
+ case LTTNG_EXECUTE_ERROR_QUERY:
+ {
+ struct lttng_error_query *query;
+ const struct lttng_credentials cmd_creds = {
+ .uid = LTTNG_OPTIONAL_INIT_VALUE(cmd_ctx->creds.uid),
+ .gid = LTTNG_OPTIONAL_INIT_VALUE(cmd_ctx->creds.gid),
+ };
+ struct lttng_error_query_results *results = NULL;
+ size_t original_payload_size;
+ size_t payload_size;
+
+ ret = setup_empty_lttng_msg(cmd_ctx);
+ if (ret) {
+ ret = LTTNG_ERR_NOMEM;
+ goto setup_error;
+ }
+
+ original_payload_size = cmd_ctx->reply_payload.buffer.size;
+
+ ret = receive_lttng_error_query(
+ cmd_ctx, *sock, sock_error, &query);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+ ret = cmd_execute_error_query(&cmd_creds, query, &results,
+ the_notification_thread_handle);
+ lttng_error_query_destroy(query);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+ assert(results);
+ ret = lttng_error_query_results_serialize(
+ results, &cmd_ctx->reply_payload);
+ lttng_error_query_results_destroy(results);
+ if (ret) {
+ ERR("Failed to serialize error query result set in reply to `execute error query` command");
+ ret = LTTNG_ERR_NOMEM;
+ goto error;
+ }
+
+ payload_size = cmd_ctx->reply_payload.buffer.size -
+ original_payload_size;
+
+ update_lttng_msg(cmd_ctx, 0, payload_size);
+
+ ret = LTTNG_OK;
+
+ break;
+ }
default:
ret = LTTNG_ERR_UND;
break;
projects / lttng-tools.git / blobdiff