Fix: leak of sessiond configuration on launch of run-as worker
[lttng-tools.git] / src / common / runas.h
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1#ifndef _RUNAS_H
2#define _RUNAS_H
3
4/*
5 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
6 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
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8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License, version 2 only,
10 * as published by the Free Software Foundation.
60b6c79c 11 *
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12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
60b6c79c 16 *
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17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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20 */
21
0ef03255 22#include <stdint.h>
3446f606 23#include <sys/types.h>
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24#include <unistd.h>
25
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26/*
27 * The run-as process is launched by forking without an exec*() call. This means
28 * that any resource allocated before the run-as worker is launched should be
29 * cleaned-up after the fork(). This callback allows the user to perform this
30 * clean-up.
31 *
32 * Note that the callback will _not_ be invoked if the LTTNG_DEBUG_NOCLONE
33 * environment variable is set as the clean-up is not needed (and may not be
34 * expected).
35 *
36 * A negative return value will cause the run-as process to exit with a non-zero
37 * value.
38 */
39typedef int (*post_fork_cleanup_cb)(void *user_data);
40
c18250f2 41LTTNG_HIDDEN
e11d277b 42int run_as_mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 43LTTNG_HIDDEN
e11d277b 44int run_as_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid);
c18250f2 45LTTNG_HIDDEN
e11d277b 46int run_as_open(const char *path, int flags, mode_t mode, uid_t uid, gid_t gid);
c18250f2 47LTTNG_HIDDEN
4628484a 48int run_as_unlink(const char *path, uid_t uid, gid_t gid);
c18250f2 49LTTNG_HIDDEN
7567352f 50int run_as_rmdir_recursive(const char *path, uid_t uid, gid_t gid);
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51LTTNG_HIDDEN
52int run_as_extract_elf_symbol_offset(int fd, const char* function,
53 uid_t uid, gid_t gid, uint64_t *offset);
c18250f2 54LTTNG_HIDDEN
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55int run_as_extract_sdt_probe_offsets(int fd, const char *provider_name,
56 const char* probe_name, uid_t uid, gid_t gid,
57 uint64_t **offsets, uint32_t *num_offset);
58LTTNG_HIDDEN
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59int run_as_create_worker(const char *procname,
60 post_fork_cleanup_cb clean_up_func, void *clean_up_user_data);
c18250f2 61LTTNG_HIDDEN
7567352f 62void run_as_destroy_worker(void);
9ef70f87 63
60b6c79c 64#endif /* _RUNAS_H */
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