| 1 | #ifndef _RUNAS_H |
| 2 | #define _RUNAS_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> |
| 6 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 7 | * |
| 8 | * SPDX-License-Identifier: GPL-2.0-only |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include <stdint.h> |
| 13 | #include <sys/types.h> |
| 14 | #include <unistd.h> |
| 15 | |
| 16 | #include <common/macros.h> |
| 17 | #include <common/sessiond-comm/sessiond-comm.h> |
| 18 | |
| 19 | #ifdef __cplusplus |
| 20 | extern "C" { |
| 21 | #endif |
| 22 | |
| 23 | /* |
| 24 | * The run-as process is launched by forking without an exec*() call. This means |
| 25 | * that any resource allocated before the run-as worker is launched should be |
| 26 | * cleaned-up after the fork(). This callback allows the user to perform this |
| 27 | * clean-up. |
| 28 | * |
| 29 | * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE |
| 30 | * environment variable is set as the clean-up is not needed (and may not be |
| 31 | * expected). |
| 32 | * |
| 33 | * A negative return value will cause the run-as process to exit with a non-zero |
| 34 | * value. |
| 35 | */ |
| 36 | typedef int (*post_fork_cleanup_cb)(void *user_data); |
| 37 | |
| 38 | int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid); |
| 39 | int run_as_mkdirat_recursive(int dirfd, const char *path, mode_t mode, |
| 40 | uid_t uid, gid_t gid); |
| 41 | int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid); |
| 42 | int run_as_mkdirat(int dirfd, const char *path, mode_t mode, |
| 43 | uid_t uid, gid_t gid); |
| 44 | int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid); |
| 45 | int run_as_openat(int dirfd, const char *filename, int flags, mode_t mode, |
| 46 | uid_t uid, gid_t gid); |
| 47 | int run_as_unlink(const char *path, uid_t uid, gid_t gid); |
| 48 | int run_as_unlinkat(int dirfd, const char *filename, uid_t uid, gid_t gid); |
| 49 | int run_as_rmdir(const char *path, uid_t uid, gid_t gid); |
| 50 | int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid, int flags); |
| 51 | int run_as_rmdirat(int dirfd, const char *path, uid_t uid, gid_t gid); |
| 52 | int run_as_rmdirat_recursive(int dirfd, const char *path, uid_t uid, gid_t gid, int flags); |
| 53 | int run_as_rename(const char *old_name, const char *new_name, uid_t uid, gid_t gid); |
| 54 | int run_as_renameat(int old_dirfd, const char *old_name, |
| 55 | int new_dirfd, const char *new_name, uid_t uid, gid_t gid); |
| 56 | int run_as_extract_elf_symbol_offset(int fd, const char* function, |
| 57 | uid_t uid, gid_t gid, uint64_t *offset); |
| 58 | int run_as_extract_sdt_probe_offsets(int fd, const char *provider_name, |
| 59 | const char* probe_name, uid_t uid, gid_t gid, |
| 60 | uint64_t **offsets, uint32_t *num_offset); |
| 61 | int run_as_generate_filter_bytecode(const char *filter_expression, |
| 62 | const struct lttng_credentials *creds, |
| 63 | struct lttng_bytecode **bytecode); |
| 64 | int run_as_create_worker(const char *procname, |
| 65 | post_fork_cleanup_cb clean_up_func, void *clean_up_user_data); |
| 66 | void run_as_destroy_worker(void); |
| 67 | |
| 68 | #ifdef __cplusplus |
| 69 | } |
| 70 | #endif |
| 71 | |
| 72 | #endif /* _RUNAS_H */ |