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267fabd2 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2016 Lennart Poettering | |
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 "vlan-util.h" | |
21 | #include "parse-util.h" | |
22 | #include "conf-parser.h" | |
23 | ||
24 | int parse_vlanid(const char *p, uint16_t *ret) { | |
25 | uint16_t id; | |
26 | int r; | |
27 | ||
28 | r = safe_atou16(p, &id); | |
29 | if (r < 0) | |
30 | return r; | |
31 | if (!vlanid_is_valid(id)) | |
32 | return -ERANGE; | |
33 | ||
34 | *ret = id; | |
35 | return 0; | |
36 | } | |
37 | ||
38 | int config_parse_vlanid( | |
39 | const char *unit, | |
40 | const char *filename, | |
41 | unsigned line, | |
42 | const char *section, | |
43 | unsigned section_line, | |
44 | const char *lvalue, | |
45 | int ltype, | |
46 | const char *rvalue, | |
47 | void *data, | |
48 | void *userdata) { | |
49 | ||
50 | uint16_t *id = data; | |
51 | int r; | |
52 | ||
53 | assert(filename); | |
54 | assert(lvalue); | |
55 | assert(rvalue); | |
56 | assert(data); | |
57 | ||
58 | r = parse_vlanid(rvalue, id); | |
59 | if (r == -ERANGE) { | |
60 | log_syntax(unit, LOG_ERR, filename, line, r, "VLAN identifier outside of valid range 0…4094, ignoring: %s", rvalue); | |
61 | return 0; | |
62 | } | |
63 | if (r < 0) { | |
64 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VLAN identifier value, ignoring: %s", rvalue); | |
65 | return 0; | |
66 | } | |
67 | ||
68 | return 0; | |
69 | } |