consumerd: pass channel instance to stream creation function
[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
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16#include <common/macros.h>
17
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18/*
19 * The run-as process is launched by forking without an exec*() call. This means
20 * that any resource allocated before the run-as worker is launched should be
21 * cleaned-up after the fork(). This callback allows the user to perform this
22 * clean-up.
23 *
24 * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE
25 * environment variable is set as the clean-up is not needed (and may not be
26 * expected).
27 *
28 * A negative return value will cause the run-as process to exit with a non-zero
29 * value.
30 */
31typedef int (*post_fork_cleanup_cb)(void *user_data);
32
c18250f2 33LTTNG_HIDDEN
e11d277b 34int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 35LTTNG_HIDDEN
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36int run_as_mkdirat_recursive(int dirfd, const char *path, mode_t mode,
37 uid_t uid, gid_t gid);
38LTTNG_HIDDEN
e11d277b 39int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 40LTTNG_HIDDEN
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41int run_as_mkdirat(int dirfd, const char *path, mode_t mode,
42 uid_t uid, gid_t gid);
43LTTNG_HIDDEN
e11d277b 44int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
c18250f2 45LTTNG_HIDDEN
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46int run_as_openat(int dirfd, const char *filename, int flags, mode_t mode,
47 uid_t uid, gid_t gid);
48LTTNG_HIDDEN
4628484a 49int run_as_unlink(const char *path, uid_t uid, gid_t gid);
c18250f2 50LTTNG_HIDDEN
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51int run_as_unlinkat(int dirfd, const char *filename, uid_t uid, gid_t gid);
52LTTNG_HIDDEN
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53int run_as_rmdir(const char *path, uid_t uid, gid_t gid);
54LTTNG_HIDDEN
f75c5439 55int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid, int flags);
241e0a5a 56LTTNG_HIDDEN
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57int run_as_rmdirat(int dirfd, const char *path, uid_t uid, gid_t gid);
58LTTNG_HIDDEN
f75c5439 59int run_as_rmdirat_recursive(int dirfd, const char *path, uid_t uid, gid_t gid, int flags);
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60LTTNG_HIDDEN
61int run_as_rename(const char *old, const char *new, uid_t uid, gid_t gid);
62LTTNG_HIDDEN
63int run_as_renameat(int old_dirfd, const char *old,
64 int new_dirfd, const char *new, uid_t uid, gid_t gid);
65LTTNG_HIDDEN
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66int run_as_extract_elf_symbol_offset(int fd, const char* function,
67 uid_t uid, gid_t gid, uint64_t *offset);
c18250f2 68LTTNG_HIDDEN
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69int run_as_extract_sdt_probe_offsets(int fd, const char *provider_name,
70 const char* probe_name, uid_t uid, gid_t gid,
71 uint64_t **offsets, uint32_t *num_offset);
72LTTNG_HIDDEN
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73int run_as_create_worker(const char *procname,
74 post_fork_cleanup_cb clean_up_func, void *clean_up_user_data);
c18250f2 75LTTNG_HIDDEN
7567352f 76void run_as_destroy_worker(void);
9ef70f87 77
60b6c79c 78#endif /* _RUNAS_H */
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