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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
84e51726 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2014 Kay Sievers, Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU Lesser General Public License as published by | |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
b5efdb8a | 21 | #include "alloc-util.h" |
84e51726 | 22 | #include "timesyncd-server.h" |
874ff7bf LP |
23 | |
24 | int server_address_new( | |
25 | ServerName *n, | |
26 | ServerAddress **ret, | |
27 | const union sockaddr_union *sockaddr, | |
28 | socklen_t socklen) { | |
29 | ||
30 | ServerAddress *a, *tail; | |
31 | ||
32 | assert(n); | |
33 | assert(sockaddr); | |
34 | assert(socklen >= offsetof(struct sockaddr, sa_data)); | |
35 | assert(socklen <= sizeof(union sockaddr_union)); | |
36 | ||
37 | a = new0(ServerAddress, 1); | |
38 | if (!a) | |
39 | return -ENOMEM; | |
40 | ||
41 | memcpy(&a->sockaddr, sockaddr, socklen); | |
42 | a->socklen = socklen; | |
43 | ||
44 | LIST_FIND_TAIL(addresses, n->addresses, tail); | |
45 | LIST_INSERT_AFTER(addresses, n->addresses, tail, a); | |
46 | a->name = n; | |
47 | ||
48 | if (ret) | |
49 | *ret = a; | |
50 | ||
51 | return 0; | |
52 | } | |
53 | ||
54 | ServerAddress* server_address_free(ServerAddress *a) { | |
55 | if (!a) | |
56 | return NULL; | |
57 | ||
58 | if (a->name) { | |
59 | LIST_REMOVE(addresses, a->name->addresses, a); | |
60 | ||
61 | if (a->name->manager && a->name->manager->current_server_address == a) | |
62 | manager_set_server_address(a->name->manager, NULL); | |
63 | } | |
64 | ||
6b430fdb | 65 | return mfree(a); |
874ff7bf LP |
66 | } |
67 | ||
68 | int server_name_new( | |
69 | Manager *m, | |
70 | ServerName **ret, | |
71 | ServerType type, | |
72 | const char *string) { | |
73 | ||
74 | ServerName *n, *tail; | |
75 | ||
76 | assert(m); | |
77 | assert(string); | |
78 | ||
79 | n = new0(ServerName, 1); | |
80 | if (!n) | |
81 | return -ENOMEM; | |
82 | ||
83 | n->type = type; | |
84 | n->string = strdup(string); | |
85 | if (!n->string) { | |
86 | free(n); | |
87 | return -ENOMEM; | |
88 | } | |
89 | ||
90 | if (type == SERVER_SYSTEM) { | |
91 | LIST_FIND_TAIL(names, m->system_servers, tail); | |
92 | LIST_INSERT_AFTER(names, m->system_servers, tail, n); | |
93 | } else if (type == SERVER_LINK) { | |
94 | LIST_FIND_TAIL(names, m->link_servers, tail); | |
95 | LIST_INSERT_AFTER(names, m->link_servers, tail, n); | |
96 | } else if (type == SERVER_FALLBACK) { | |
97 | LIST_FIND_TAIL(names, m->fallback_servers, tail); | |
98 | LIST_INSERT_AFTER(names, m->fallback_servers, tail, n); | |
99 | } else | |
100 | assert_not_reached("Unknown server type"); | |
101 | ||
102 | n->manager = m; | |
103 | ||
104 | if (type != SERVER_FALLBACK && | |
105 | m->current_server_name && | |
106 | m->current_server_name->type == SERVER_FALLBACK) | |
107 | manager_set_server_name(m, NULL); | |
108 | ||
109 | log_debug("Added new server %s.", string); | |
110 | ||
111 | if (ret) | |
112 | *ret = n; | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | ServerName *server_name_free(ServerName *n) { | |
118 | if (!n) | |
119 | return NULL; | |
120 | ||
121 | server_name_flush_addresses(n); | |
122 | ||
123 | if (n->manager) { | |
124 | if (n->type == SERVER_SYSTEM) | |
125 | LIST_REMOVE(names, n->manager->system_servers, n); | |
126 | else if (n->type == SERVER_LINK) | |
127 | LIST_REMOVE(names, n->manager->link_servers, n); | |
128 | else if (n->type == SERVER_FALLBACK) | |
129 | LIST_REMOVE(names, n->manager->fallback_servers, n); | |
130 | else | |
131 | assert_not_reached("Unknown server type"); | |
132 | ||
133 | if (n->manager->current_server_name == n) | |
134 | manager_set_server_name(n->manager, NULL); | |
135 | } | |
136 | ||
137 | log_debug("Removed server %s.", n->string); | |
138 | ||
139 | free(n->string); | |
6b430fdb | 140 | return mfree(n); |
874ff7bf LP |
141 | } |
142 | ||
143 | void server_name_flush_addresses(ServerName *n) { | |
144 | assert(n); | |
145 | ||
146 | while (n->addresses) | |
147 | server_address_free(n->addresses); | |
148 | } |