X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Frunas.h;h=06e41cd019b73071424af8ab815f7eebd54869e0;hp=c8c485c1f22357d8ee6eb6c7fdd78b3ce5b1b683;hb=2463b7879c00298daa79744cdaae82ac061a4ed8;hpb=10a8a2237343699e3923d87e24dbf2d7fe225377 diff --git a/src/common/runas.h b/src/common/runas.h index c8c485c1f..06e41cd01 100644 --- a/src/common/runas.h +++ b/src/common/runas.h @@ -2,28 +2,83 @@ #define _RUNAS_H /* - * Copyright (C) 2011 - David Goulet - * Mathieu Desnoyers + * Copyright (C) 2011 David Goulet + * Copyright (C) 2011 Mathieu Desnoyers * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; only verion 2 - * of the License. + * SPDX-License-Identifier: GPL-2.0-only * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include +#include #include +#include +#include + +/* + * 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. + */ +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_generate_filter_bytecode(const char *filter_expression, + uid_t uid, + gid_t gid, + struct lttng_bytecode **bytecode); +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 */