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fc2f9534 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
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 | ||
fc2f9534 | 20 | #include "conf-parser.h" |
fc2f9534 | 21 | #include "networkd-util.h" |
6bedfcbb | 22 | #include "parse-util.h" |
8b43440b | 23 | #include "string-table.h" |
07630cea LP |
24 | #include "string-util.h" |
25 | #include "util.h" | |
fc2f9534 LP |
26 | |
27 | const char *address_family_boolean_to_string(AddressFamilyBoolean b) { | |
28 | if (b == ADDRESS_FAMILY_YES || | |
29 | b == ADDRESS_FAMILY_NO) | |
30 | return yes_no(b == ADDRESS_FAMILY_YES); | |
31 | ||
32 | if (b == ADDRESS_FAMILY_IPV4) | |
33 | return "ipv4"; | |
34 | if (b == ADDRESS_FAMILY_IPV6) | |
35 | return "ipv6"; | |
36 | ||
37 | return NULL; | |
38 | } | |
39 | ||
40 | AddressFamilyBoolean address_family_boolean_from_string(const char *s) { | |
41 | int r; | |
42 | ||
43 | /* Make this a true superset of a boolean */ | |
44 | ||
45 | r = parse_boolean(s); | |
46 | if (r > 0) | |
47 | return ADDRESS_FAMILY_YES; | |
48 | if (r == 0) | |
49 | return ADDRESS_FAMILY_NO; | |
50 | ||
51 | if (streq(s, "ipv4")) | |
52 | return ADDRESS_FAMILY_IPV4; | |
53 | if (streq(s, "ipv6")) | |
54 | return ADDRESS_FAMILY_IPV6; | |
55 | ||
56 | return _ADDRESS_FAMILY_BOOLEAN_INVALID; | |
57 | } | |
58 | ||
59 | DEFINE_CONFIG_PARSE_ENUM(config_parse_address_family_boolean, address_family_boolean, AddressFamilyBoolean, "Failed to parse option"); | |
60 | ||
61 | int config_parse_address_family_boolean_with_kernel( | |
62 | const char* unit, | |
63 | const char *filename, | |
64 | unsigned line, | |
65 | const char *section, | |
66 | unsigned section_line, | |
67 | const char *lvalue, | |
68 | int ltype, | |
69 | const char *rvalue, | |
70 | void *data, | |
71 | void *userdata) { | |
72 | ||
73 | AddressFamilyBoolean *fwd = data, s; | |
74 | ||
75 | assert(filename); | |
76 | assert(lvalue); | |
77 | assert(rvalue); | |
78 | assert(data); | |
79 | ||
765afd5c LP |
80 | /* This function is mostly obsolete now. It simply redirects |
81 | * "kernel" to "no". In older networkd versions we used to | |
82 | * distuingish IPForward=off from IPForward=kernel, where the | |
83 | * former would explicitly turn off forwarding while the | |
84 | * latter would simply not touch the setting. But that logic | |
85 | * is gone, hence silently accept the old setting, but turn it | |
86 | * to "no". */ | |
87 | ||
fc2f9534 LP |
88 | s = address_family_boolean_from_string(rvalue); |
89 | if (s < 0) { | |
90 | if (streq(rvalue, "kernel")) | |
765afd5c | 91 | s = ADDRESS_FAMILY_NO; |
fc2f9534 | 92 | else { |
85e070c2 | 93 | log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IPForward= option, ignoring: %s", rvalue); |
fc2f9534 LP |
94 | return 0; |
95 | } | |
96 | } | |
97 | ||
98 | *fwd = s; | |
99 | ||
100 | return 0; | |
101 | } |