5 * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
6 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * SPDX-License-Identifier: GPL-2.0-only
13 #include <sys/types.h>
16 #include <common/macros.h>
17 #include <common/sessiond-comm/sessiond-comm.h>
20 * The run-as process is launched by forking without an exec*() call. This means
21 * that any resource allocated before the run-as worker is launched should be
22 * cleaned-up after the fork(). This callback allows the user to perform this
25 * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE
26 * environment variable is set as the clean-up is not needed (and may not be
29 * A negative return value will cause the run-as process to exit with a non-zero
32 typedef int (*post_fork_cleanup_cb
)(void *user_data
);
35 int run_as_mkdir_recursive(const char *path
, mode_t mode
, uid_t uid
, gid_t gid
);
37 int run_as_mkdirat_recursive(int dirfd
, const char *path
, mode_t mode
,
38 uid_t uid
, gid_t gid
);
40 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
);
45 int run_as_open(const char *path
, int flags
, mode_t mode
, uid_t uid
, gid_t gid
);
47 int run_as_openat(int dirfd
, const char *filename
, int flags
, mode_t mode
,
48 uid_t uid
, gid_t gid
);
50 int run_as_unlink(const char *path
, uid_t uid
, gid_t gid
);
52 int run_as_unlinkat(int dirfd
, const char *filename
, uid_t uid
, gid_t gid
);
54 int run_as_rmdir(const char *path
, uid_t uid
, gid_t gid
);
56 int run_as_rmdir_recursive(const char *path
, uid_t uid
, gid_t gid
, int flags
);
58 int run_as_rmdirat(int dirfd
, const char *path
, uid_t uid
, gid_t gid
);
60 int run_as_rmdirat_recursive(int dirfd
, const char *path
, uid_t uid
, gid_t gid
, int flags
);
62 int run_as_rename(const char *old
, const char *new, uid_t uid
, gid_t gid
);
64 int run_as_renameat(int old_dirfd
, const char *old
,
65 int new_dirfd
, const char *new, uid_t uid
, gid_t gid
);
67 int run_as_extract_elf_symbol_offset(int fd
, const char* function
,
68 uid_t uid
, gid_t gid
, uint64_t *offset
);
70 int run_as_extract_sdt_probe_offsets(int fd
, const char *provider_name
,
71 const char* probe_name
, uid_t uid
, gid_t gid
,
72 uint64_t **offsets
, uint32_t *num_offset
);
74 int run_as_generate_filter_bytecode(const char *filter_expression
,
75 const struct lttng_credentials
*creds
,
76 struct lttng_filter_bytecode
**bytecode
);
78 int run_as_create_worker(const char *procname
,
79 post_fork_cleanup_cb clean_up_func
, void *clean_up_user_data
);
81 void run_as_destroy_worker(void);