*
*/
-#include "common/buffer-view.h"
-#include "common/compat/socket.h"
-#include "common/dynamic-array.h"
-#include "common/dynamic-buffer.h"
-#include "common/fd-handle.h"
-#include "common/payload-view.h"
-#include "common/payload.h"
-#include "common/sessiond-comm/sessiond-comm.h"
+#include "common/buffer-view.hpp"
+#include "common/compat/socket.hpp"
+#include "common/dynamic-array.hpp"
+#include "common/dynamic-buffer.hpp"
+#include "common/fd-handle.hpp"
+#include "common/payload-view.hpp"
+#include "common/payload.hpp"
+#include "common/sessiond-comm/sessiond-comm.hpp"
#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 <lttng/userspace-probe-internal.h>
+#include <common/compat/getenv.hpp>
+#include <common/tracker.hpp>
+#include <common/unix.hpp>
+#include <common/utils.hpp>
+#include <lttng/error-query-internal.hpp>
+#include <lttng/event-internal.hpp>
+#include <lttng/session-descriptor-internal.hpp>
+#include <lttng/session-internal.hpp>
+#include <lttng/userspace-probe-internal.hpp>
#include <pthread.h>
#include <signal.h>
#include <stddef.h>
#include <sys/stat.h>
#include <unistd.h>
-#include "agent-thread.h"
-#include "clear.h"
-#include "client.h"
-#include "cmd.h"
-#include "health-sessiond.h"
-#include "kernel.h"
-#include "lttng-sessiond.h"
-#include "manage-consumer.h"
-#include "save.h"
-#include "testpoint.h"
-#include "utils.h"
-
-static bool is_root;
-
-static struct thread_state {
+#include "agent-thread.hpp"
+#include "clear.hpp"
+#include "client.hpp"
+#include "cmd.hpp"
+#include "health-sessiond.hpp"
+#include "kernel.hpp"
+#include "lttng-sessiond.hpp"
+#include "manage-consumer.hpp"
+#include "save.hpp"
+#include "testpoint.hpp"
+#include "utils.hpp"
+
+namespace {
+bool is_root;
+
+struct thread_state {
sem_t ready;
bool running;
int client_sock;
} thread_state;
+} /* namespace */
static void set_thread_status(bool running)
{
tmp = "";
}
tmplen = strlen(the_config.consumerd64_lib_dir.value) + 1 /* : */ + strlen(tmp);
- tmpnew = (char *) zmalloc(tmplen + 1 /* \0 */);
+ tmpnew = zmalloc<char>(tmplen + 1 /* \0 */);
if (!tmpnew) {
ret = -ENOMEM;
goto error;
tmp = "";
}
tmplen = strlen(the_config.consumerd32_lib_dir.value) + 1 /* : */ + strlen(tmp);
- tmpnew = (char *) zmalloc(tmplen + 1 /* \0 */);
+ tmpnew = zmalloc<char>(tmplen + 1 /* \0 */);
if (!tmpnew) {
ret = -ENOMEM;
goto error;
/*
* Count number of session permitted by uid/gid.
*/
-static unsigned int lttng_sessions_count(uid_t uid, gid_t gid)
+static unsigned int lttng_sessions_count(uid_t uid,
+ gid_t gid __attribute__((unused)))
{
unsigned int i = 0;
struct ltt_session *session;
ssize_t sock_recv_len;
enum lttng_error_code ret_code;
struct lttng_payload event_payload;
+ struct lttng_event *local_event = NULL;
+ char *local_filter_expression = NULL;
+ struct lttng_bytecode *local_bytecode = NULL;
+ struct lttng_event_exclusion *local_exclusion = NULL;
lttng_payload_init(&event_payload);
if (cmd_ctx->lsm.cmd_type == LTTNG_ENABLE_EVENT) {
/* Deserialize event. */
{
+ ssize_t len;
struct lttng_payload_view event_view =
lttng_payload_view_from_payload(
&event_payload, 0, -1);
- if (lttng_event_create_from_payload(&event_view, out_event,
- out_exclusion, out_filter_expression,
- out_bytecode) != event_len) {
- ERR("Invalid event received as part of command payload");
+ len = lttng_event_create_from_payload(&event_view, &local_event,
+ &local_exclusion, &local_filter_expression,
+ &local_bytecode);
+
+ if (len < 0) {
+ ERR("Failed to create an event from the received buffer");
+ ret_code = LTTNG_ERR_INVALID_PROTOCOL;
+ goto end;
+ }
+
+ if (len != event_len) {
+ ERR("Userspace probe location from the received buffer is not the advertised length: header length = %zu" PRIu32 ", payload length = %zd", event_len, len);
ret_code = LTTNG_ERR_INVALID_PROTOCOL;
goto end;
}
}
+ *out_event = local_event;
+ *out_exclusion = local_exclusion;
+ *out_filter_expression = local_filter_expression;
+ *out_bytecode = local_bytecode;
+ local_event = NULL;
+ local_exclusion = NULL;
+ local_filter_expression = NULL;
+ local_bytecode = NULL;
+
ret_code = LTTNG_OK;
end:
lttng_payload_reset(&event_payload);
+ lttng_event_destroy(local_event);
+ free(local_filter_expression);
+ free(local_bytecode);
+ free(local_exclusion);
return ret_code;
}
ssize_t sock_recv_len;
enum lttng_error_code ret_code;
struct lttng_payload event_context_payload;
+ struct lttng_event_context *context = NULL;
lttng_payload_init(&event_context_payload);
/* Deserialize event. */
{
+ ssize_t len;
struct lttng_payload_view event_context_view =
lttng_payload_view_from_payload(
&event_context_payload, 0, -1);
- if (lttng_event_context_create_from_payload(
- &event_context_view, out_event_context) !=
- event_context_len) {
- ERR("Invalid event context received as part of command payload");
+ len = lttng_event_context_create_from_payload(
+ &event_context_view, &context);
+
+ if (len < 0) {
+ ERR("Failed to create a event context from the received buffer");
+ ret_code = LTTNG_ERR_INVALID_PROTOCOL;
+ goto end;
+ }
+
+ if (len != event_context_len) {
+ ERR("Event context from the received buffer is not the advertised length: expected length = %zu, payload length = %zd", event_context_len, len);
ret_code = LTTNG_ERR_INVALID_PROTOCOL;
goto end;
}
}
+ *out_event_context = context;
+ context = NULL;
ret_code = LTTNG_OK;
end:
+ lttng_event_context_destroy(context);
lttng_payload_reset(&event_context_payload);
return ret_code;
}
switch (cmd_ctx->lsm.cmd_type) {
case LTTNG_ADD_CONTEXT:
{
- struct lttng_event_context *event_context;
+ struct lttng_event_context *event_context = NULL;
const enum lttng_error_code ret_code =
receive_lttng_event_context(
cmd_ctx, *sock, sock_error, &event_context);
}
case LTTNG_LIST_TRACEPOINT_FIELDS:
{
- struct lttng_event_field *fields;
- ssize_t nb_fields;
+ enum lttng_error_code ret_code;
+ size_t original_payload_size;
+ size_t payload_size;
+ const size_t command_header_size = sizeof(struct lttcomm_list_command_header);
+
+ 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;
session_lock_list();
- nb_fields = cmd_list_tracepoint_fields(cmd_ctx->lsm.domain.type,
- &fields);
+ ret_code = cmd_list_tracepoint_fields(
+ cmd_ctx->lsm.domain.type, &cmd_ctx->reply_payload);
session_unlock_list();
- if (nb_fields < 0) {
- /* Return value is a negative lttng_error_code. */
- ret = -nb_fields;
+ if (ret_code != LTTNG_OK) {
+ ret = (int) ret_code;
goto error;
}
- /*
- * Setup lttng message with payload size set to the event list size in
- * bytes and then copy list into the llm payload.
- */
- ret = setup_lttng_msg_no_cmd_header(cmd_ctx, fields,
- sizeof(struct lttng_event_field) * nb_fields);
- free(fields);
-
- if (ret < 0) {
- goto setup_error;
- }
+ payload_size = cmd_ctx->reply_payload.buffer.size -
+ command_header_size - original_payload_size;
+ update_lttng_msg(cmd_ctx, command_header_size, payload_size);
ret = LTTNG_OK;
break;
goto error;
}
- uris = (lttng_uri *) zmalloc(len);
+ uris = calloc<lttng_uri>(nb_uri);
if (uris == NULL) {
ret = LTTNG_ERR_FATAL;
goto error;
case LTTNG_LIST_SESSIONS:
{
unsigned int nr_sessions;
- lttng_session *sessions_payload;
- size_t payload_len;
+ lttng_session *sessions_payload = nullptr;
+ size_t payload_len = 0;
session_lock_list();
nr_sessions = lttng_sessions_count(
LTTNG_SOCK_GET_UID_CRED(&cmd_ctx->creds),
LTTNG_SOCK_GET_GID_CRED(&cmd_ctx->creds));
- payload_len = (sizeof(struct lttng_session) * nr_sessions) +
- (sizeof(struct lttng_session_extended) * nr_sessions);
- sessions_payload = (lttng_session *) zmalloc(payload_len);
+ if (nr_sessions > 0) {
+ payload_len = (sizeof(struct lttng_session) *
+ nr_sessions) +
+ (sizeof(struct lttng_session_extended) *
+ nr_sessions);
+ sessions_payload = zmalloc<lttng_session>(payload_len);
+ if (!sessions_payload) {
+ session_unlock_list();
+ ret = -ENOMEM;
+ goto setup_error;
+ }
- if (!sessions_payload) {
- session_unlock_list();
- ret = -ENOMEM;
- goto setup_error;
+ cmd_list_lttng_sessions(sessions_payload, nr_sessions,
+ LTTNG_SOCK_GET_UID_CRED(&cmd_ctx->creds),
+ LTTNG_SOCK_GET_GID_CRED(&cmd_ctx->creds));
}
- cmd_list_lttng_sessions(sessions_payload, nr_sessions,
- LTTNG_SOCK_GET_UID_CRED(&cmd_ctx->creds),
- LTTNG_SOCK_GET_GID_CRED(&cmd_ctx->creds));
session_unlock_list();
- ret = setup_lttng_msg_no_cmd_header(cmd_ctx, sessions_payload,
- payload_len);
+ ret = setup_lttng_msg_no_cmd_header(
+ cmd_ctx, sessions_payload, payload_len);
free(sessions_payload);
if (ret < 0) {
{
lttng_snapshot_output output = cmd_ctx->lsm.u.snapshot_record.output;
ret = cmd_snapshot_record(cmd_ctx->session,
- &output,
- cmd_ctx->lsm.u.snapshot_record.wait);
+ &output, 0); // RFC: set to zero since it's ignored by cmd_snapshot_record
break;
}
case LTTNG_CREATE_SESSION_EXT:
static int create_client_sock(void)
{
int ret, client_sock;
- const mode_t old_umask = umask(0);
/* Create client tool unix socket */
client_sock = lttcomm_create_unix_sock(
DBG("Created client socket (fd = %i)", client_sock);
ret = client_sock;
end:
- umask(old_umask);
return ret;
}
lttng_pipe_destroy(quit_pipe);
}
-static void thread_init_cleanup(void *data)
+static void thread_init_cleanup(void *data __attribute__((unused)))
{
set_thread_status(false);
}
projects / lttng-tools.git / blobdiff