+/*
+ * kernctl_syscall_mask - Get syscall mask associated to a channel file
+ * descriptor.
+ *
+ * The parameter @syscall_mask should initially be either NULL or point
+ * to memory allocated with malloc(3) or realloc(3). When the function
+ * returns, it will point to a memory area of the size required for the
+ * bitmask (using realloc(3) to resize the memory).
+ *
+ * It returns 0 if OK, -1 on error. In all cases (error and OK),
+ * @syscall_mask should be freed by the caller with free(3).
+ */
+int kernctl_syscall_mask(int fd, char **syscall_mask,
+ uint32_t *nr_bits);
+
+/* Process ID tracking can be applied to session file descriptor. */
+int kernctl_track_pid(int fd, int pid);
+int kernctl_untrack_pid(int fd, int pid);
+int kernctl_list_tracker_pids(int fd);
+
+int kernctl_track_id(int fd, enum lttng_process_attr process_attr, int id);
+int kernctl_untrack_id(int fd, enum lttng_process_attr process_attr, int id);
+int kernctl_list_tracker_ids(int fd, enum lttng_process_attr process_attr);
+
+int kernctl_session_regenerate_metadata(int fd);
+int kernctl_session_regenerate_statedump(int fd);
+int kernctl_session_set_name(int fd, const char *name);
+int kernctl_session_set_creation_time(int fd, time_t time);