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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 (C) 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
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 | |
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 | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <netinet/ether.h> | |
23 | #include <net/if.h> | |
24 | ||
25 | #include "link-config.h" | |
26 | ||
27 | #include "utf8.h" | |
a12fa420 | 28 | #include "util.h" |
5fde13d7 TG |
29 | #include "conf-parser.h" |
30 | ||
31 | static const char* const mac_policy_table[] = { | |
32 | [MACPOLICY_PERSISTENT] = "persistent", | |
33 | [MACPOLICY_RANDOM] = "random" | |
34 | }; | |
35 | ||
36 | DEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy); | |
37 | DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy"); | |
38 | ||
39 | static const char* const name_policy_table[] = { | |
40 | [NAMEPOLICY_ONBOARD] = "onboard", | |
41 | [NAMEPOLICY_SLOT] = "slot", | |
42 | [NAMEPOLICY_PATH] = "path", | |
43 | [NAMEPOLICY_MAC] = "mac" | |
44 | }; | |
45 | ||
46 | DEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy); | |
47 | DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, _NAMEPOLICY_INVALID, "Failed to parse interface name policy"); | |
48 | ||
49 | int config_parse_ifname(const char *unit, | |
50 | const char *filename, | |
51 | unsigned line, | |
52 | const char *section, | |
53 | const char *lvalue, | |
54 | int ltype, | |
55 | const char *rvalue, | |
56 | void *data, | |
57 | void *userdata) { | |
58 | ||
59 | char **s = data; | |
60 | char *n; | |
61 | ||
62 | assert(filename); | |
63 | assert(lvalue); | |
64 | assert(rvalue); | |
65 | assert(data); | |
66 | ||
67 | n = strdup(rvalue); | |
68 | if (!n) | |
69 | return log_oom(); | |
70 | ||
71 | if (!ascii_is_valid(n) || strlen(n) >= IFNAMSIZ) { | |
72 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
73 | "Interface name is not ASCII clean or is too long, ignoring assignment: %s", rvalue); | |
74 | free(n); | |
75 | return 0; | |
76 | } | |
77 | ||
78 | free(*s); | |
79 | if (*n) | |
80 | *s = n; | |
81 | else { | |
82 | free(n); | |
83 | *s = NULL; | |
84 | } | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | int config_parse_hwaddr(const char *unit, | |
90 | const char *filename, | |
91 | unsigned line, | |
92 | const char *section, | |
93 | const char *lvalue, | |
94 | int ltype, | |
95 | const char *rvalue, | |
96 | void *data, | |
97 | void *userdata) { | |
98 | struct ether_addr **hwaddr = data; | |
99 | struct ether_addr *n; | |
100 | int r; | |
101 | ||
102 | assert(filename); | |
103 | assert(lvalue); | |
104 | assert(rvalue); | |
105 | assert(data); | |
106 | ||
a12fa420 | 107 | n = new0(struct ether_addr, 1); |
5fde13d7 TG |
108 | if (!n) |
109 | return log_oom(); | |
110 | ||
111 | r = sscanf(rvalue, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", | |
112 | &n->ether_addr_octet[0], | |
113 | &n->ether_addr_octet[1], | |
114 | &n->ether_addr_octet[2], | |
115 | &n->ether_addr_octet[3], | |
116 | &n->ether_addr_octet[4], | |
117 | &n->ether_addr_octet[5]); | |
118 | if (r != 6) { | |
119 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
120 | "Not a valid MAC address, ignoring assignment: %s", rvalue); | |
121 | free(n); | |
122 | return 0; | |
123 | } | |
124 | ||
125 | free(*hwaddr); | |
126 | *hwaddr = n; | |
127 | ||
128 | return 0; | |
129 | } |