X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Frunas.h;h=d3a9523bf17b37a91ec4538b71e7a23e58d9d64d;hp=ac1143eecf84100f3f3444b288a04ba06860bb33;hb=93bed9fe8f48c11b7bb1224db36d82404cea080d;hpb=3446f6068558765c6042778abaa3c43c17859283 diff --git a/src/common/runas.h b/src/common/runas.h index ac1143eec..d3a9523bf 100644 --- a/src/common/runas.h +++ b/src/common/runas.h @@ -19,29 +19,69 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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); - -/* Backward compat. */ -static inline int run_as_recursive_rmdir(const char *path, uid_t uid, gid_t gid) -{ - return run_as_rmdir_recursive(path, uid, gid); -} - LTTNG_HIDDEN -int run_as_create_worker(char *procname); +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); +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);