projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| 07d46372 YW |
1 | /*** |
| 2 | This file is part of systemd. | |
| 3 | ||
| 4 | Copyright 2017 Yu Watanabe | |
| 5 | ||
| 6 | systemd is free software; you can redistribute it and/or modify it | |
| 7 | under the terms of the GNU Lesser General Public License as published by | |
| 8 | the Free Software Foundation; either version 2.1 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | systemd is distributed in the hope that it will be useful, but | |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | Lesser General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU Lesser General Public License | |
| 17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 18 | ***/ | |
| 19 | ||
| 20 | #include <errno.h> | |
| 21 | ||
| 22 | #include "alloc-util.h" | |
| 23 | #include "extract-word.h" | |
| 24 | #include "securebits.h" | |
| 25 | #include "securebits-util.h" | |
| 26 | #include "string-util.h" | |
| 27 | ||
| 28 | int secure_bits_to_string_alloc(int i, char **s) { | |
| 29 | _cleanup_free_ char *str = NULL; | |
| 30 | size_t len; | |
| 31 | int r; | |
| 32 | ||
| 33 | assert(s); | |
| 34 | ||
| 35 | r = asprintf(&str, "%s%s%s%s%s%s", | |
| 36 | (i & (1 << SECURE_KEEP_CAPS)) ? "keep-caps " : "", | |
| 37 | (i & (1 << SECURE_KEEP_CAPS_LOCKED)) ? "keep-caps-locked " : "", | |
| 38 | (i & (1 << SECURE_NO_SETUID_FIXUP)) ? "no-setuid-fixup " : "", | |
| 39 | (i & (1 << SECURE_NO_SETUID_FIXUP_LOCKED)) ? "no-setuid-fixup-locked " : "", | |
| 40 | (i & (1 << SECURE_NOROOT)) ? "noroot " : "", | |
| 41 | (i & (1 << SECURE_NOROOT_LOCKED)) ? "noroot-locked " : ""); | |
| 42 | if (r < 0) | |
| 43 | return -ENOMEM; | |
| 44 | ||
| 45 | len = strlen(str); | |
| 46 | if (len != 0) | |
| 47 | str[len - 1] = '\0'; | |
| 48 | ||
| 49 | *s = str; | |
| 50 | str = NULL; | |
| 51 | ||
| 52 | return 0; | |
| 53 | } | |
| 54 | ||
| 55 | int secure_bits_from_string(const char *s) { | |
| 56 | int secure_bits = 0; | |
| 57 | const char *p; | |
| 58 | int r; | |
| 59 | ||
| 60 | for (p = s;;) { | |
| 61 | _cleanup_free_ char *word = NULL; | |
| 62 | ||
| 63 | r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); | |
| 64 | if (r == -ENOMEM) | |
| 65 | return r; | |
| 66 | if (r <= 0) | |
| 67 | break; | |
| 68 | ||
| 69 | if (streq(word, "keep-caps")) | |
| 70 | secure_bits |= 1 << SECURE_KEEP_CAPS; | |
| 71 | else if (streq(word, "keep-caps-locked")) | |
| 72 | secure_bits |= 1 << SECURE_KEEP_CAPS_LOCKED; | |
| 73 | else if (streq(word, "no-setuid-fixup")) | |
| 74 | secure_bits |= 1 << SECURE_NO_SETUID_FIXUP; | |
| 75 | else if (streq(word, "no-setuid-fixup-locked")) | |
| 76 | secure_bits |= 1 << SECURE_NO_SETUID_FIXUP_LOCKED; | |
| 77 | else if (streq(word, "noroot")) | |
| 78 | secure_bits |= 1 << SECURE_NOROOT; | |
| 79 | else if (streq(word, "noroot-locked")) | |
| 80 | secure_bits |= 1 << SECURE_NOROOT_LOCKED; | |
| 81 | } | |
| 82 | ||
| 83 | return secure_bits; | |
| 84 | } |