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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
d7832d2c KS |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
d7832d2c | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
d7832d2c KS |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <assert.h> | |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
25 | #include <errno.h> | |
26 | #include <stdlib.h> | |
27 | #include <stdio.h> | |
28 | #include <ctype.h> | |
d7832d2c KS |
29 | |
30 | #include "macro.h" | |
31 | #include "audit.h" | |
32 | #include "util.h" | |
33 | #include "log.h" | |
a5c32cff | 34 | #include "fileio.h" |
9a3ef988 | 35 | #include "virt.h" |
d7832d2c KS |
36 | |
37 | int audit_session_from_pid(pid_t pid, uint32_t *id) { | |
5b12334d LP |
38 | _cleanup_free_ char *s = NULL; |
39 | const char *p; | |
d7832d2c KS |
40 | uint32_t u; |
41 | int r; | |
42 | ||
43 | assert(id); | |
44 | ||
b68fa010 | 45 | p = procfs_file_alloca(pid, "sessionid"); |
d7832d2c | 46 | |
5b12334d | 47 | r = read_one_line_file(p, &s); |
d7832d2c KS |
48 | if (r < 0) |
49 | return r; | |
50 | ||
51 | r = safe_atou32(s, &u); | |
d7832d2c KS |
52 | if (r < 0) |
53 | return r; | |
54 | ||
55 | if (u == (uint32_t) -1 || u <= 0) | |
5b12334d | 56 | return -ENXIO; |
d7832d2c KS |
57 | |
58 | *id = u; | |
59 | return 0; | |
60 | } | |
61 | ||
62 | int audit_loginuid_from_pid(pid_t pid, uid_t *uid) { | |
5b12334d LP |
63 | _cleanup_free_ char *s = NULL; |
64 | const char *p; | |
d7832d2c KS |
65 | uid_t u; |
66 | int r; | |
67 | ||
68 | assert(uid); | |
69 | ||
b68fa010 | 70 | p = procfs_file_alloca(pid, "loginuid"); |
d7832d2c | 71 | |
5b12334d | 72 | r = read_one_line_file(p, &s); |
d7832d2c KS |
73 | if (r < 0) |
74 | return r; | |
75 | ||
76 | r = parse_uid(s, &u); | |
d7832d2c KS |
77 | if (r < 0) |
78 | return r; | |
79 | ||
80 | if (u == (uid_t) -1) | |
5b12334d | 81 | return -ENXIO; |
d7832d2c KS |
82 | |
83 | *uid = (uid_t) u; | |
84 | return 0; | |
85 | } |