SoW-2020-0002: Trace Hit Counters: trigger error reporting integration
[lttng-tools.git] / src / common / runas.h
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1#ifndef _RUNAS_H
2#define _RUNAS_H
3
4/*
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5 * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
6 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
60b6c79c 7 *
ab5be9fa 8 * SPDX-License-Identifier: GPL-2.0-only
60b6c79c 9 *
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10 */
11
0ef03255 12#include <stdint.h>
3446f606 13#include <sys/types.h>
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14#include <unistd.h>
15
2912cead 16#include <common/macros.h>
c73f064a 17#include <common/sessiond-comm/sessiond-comm.h>
2912cead 18
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19/*
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
23 * clean-up.
24 *
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
27 * expected).
28 *
29 * A negative return value will cause the run-as process to exit with a non-zero
30 * value.
31 */
32typedef int (*post_fork_cleanup_cb)(void *user_data);
33
c18250f2 34LTTNG_HIDDEN
e11d277b 35int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 36LTTNG_HIDDEN
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37int run_as_mkdirat_recursive(int dirfd, const char *path, mode_t mode,
38 uid_t uid, gid_t gid);
39LTTNG_HIDDEN
e11d277b 40int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 41LTTNG_HIDDEN
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42int run_as_mkdirat(int dirfd, const char *path, mode_t mode,
43 uid_t uid, gid_t gid);
44LTTNG_HIDDEN
e11d277b 45int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
c18250f2 46LTTNG_HIDDEN
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47int run_as_openat(int dirfd, const char *filename, int flags, mode_t mode,
48 uid_t uid, gid_t gid);
49LTTNG_HIDDEN
4628484a 50int run_as_unlink(const char *path, uid_t uid, gid_t gid);
c18250f2 51LTTNG_HIDDEN
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52int run_as_unlinkat(int dirfd, const char *filename, uid_t uid, gid_t gid);
53LTTNG_HIDDEN
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54int run_as_rmdir(const char *path, uid_t uid, gid_t gid);
55LTTNG_HIDDEN
f75c5439 56int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid, int flags);
241e0a5a 57LTTNG_HIDDEN
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58int run_as_rmdirat(int dirfd, const char *path, uid_t uid, gid_t gid);
59LTTNG_HIDDEN
f75c5439 60int run_as_rmdirat_recursive(int dirfd, const char *path, uid_t uid, gid_t gid, int flags);
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61LTTNG_HIDDEN
62int run_as_rename(const char *old, const char *new, uid_t uid, gid_t gid);
63LTTNG_HIDDEN
64int run_as_renameat(int old_dirfd, const char *old,
65 int new_dirfd, const char *new, uid_t uid, gid_t gid);
66LTTNG_HIDDEN
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67int run_as_extract_elf_symbol_offset(int fd, const char* function,
68 uid_t uid, gid_t gid, uint64_t *offset);
c18250f2 69LTTNG_HIDDEN
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70int 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);
73LTTNG_HIDDEN
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74int run_as_generate_filter_bytecode(const char *filter_expression,
75 uid_t uid,
76 gid_t gid,
2463b787 77 struct lttng_bytecode **bytecode);
c73f064a 78LTTNG_HIDDEN
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79int run_as_create_worker(const char *procname,
80 post_fork_cleanup_cb clean_up_func, void *clean_up_user_data);
c18250f2 81LTTNG_HIDDEN
7567352f 82void run_as_destroy_worker(void);
9ef70f87 83
60b6c79c 84#endif /* _RUNAS_H */
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