* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include <stdint.h>
+#include <sys/types.h>
#include <unistd.h>
-#include <pthread.h>
-int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
-int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
-int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
+#include <common/macros.h>
/*
- * We need to lock pthread exit, which deadlocks __nptl_setxid in the
- * clone.
+ * The run-as process is launched by forking without an exec*() call. This means
+ * that any resource allocated before the run-as worker is launched should be
+ * cleaned-up after the fork(). This callback allows the user to perform this
+ * clean-up.
+ *
+ * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE
+ * environment variable is set as the clean-up is not needed (and may not be
+ * expected).
+ *
+ * A negative return value will cause the run-as process to exit with a non-zero
+ * value.
*/
-extern pthread_mutex_t lttng_libc_state_lock;
+typedef int (*post_fork_cleanup_cb)(void *user_data);
+
+LTTNG_HIDDEN
+int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_mkdirat_recursive(int dirfd, const char *path, mode_t mode,
+ uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_mkdirat(int dirfd, const char *path, mode_t mode,
+ uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_openat(int dirfd, const char *filename, int flags, mode_t mode,
+ uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_unlink(const char *path, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_unlinkat(int dirfd, const char *filename, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_rmdir(const char *path, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid, int flags);
+LTTNG_HIDDEN
+int run_as_rmdirat(int dirfd, const char *path, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_rmdirat_recursive(int dirfd, const char *path, uid_t uid, gid_t gid, int flags);
+LTTNG_HIDDEN
+int run_as_rename(const char *old, const char *new, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_renameat(int old_dirfd, const char *old,
+ int new_dirfd, const char *new, uid_t uid, gid_t gid);
+LTTNG_HIDDEN
+int run_as_extract_elf_symbol_offset(int fd, const char* function,
+ uid_t uid, gid_t gid, uint64_t *offset);
+LTTNG_HIDDEN
+int run_as_extract_sdt_probe_offsets(int fd, const char *provider_name,
+ const char* probe_name, uid_t uid, gid_t gid,
+ uint64_t **offsets, uint32_t *num_offset);
+LTTNG_HIDDEN
+int run_as_create_worker(const char *procname,
+ post_fork_cleanup_cb clean_up_func, void *clean_up_user_data);
+LTTNG_HIDDEN
+void run_as_destroy_worker(void);
#endif /* _RUNAS_H */