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84e51726 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2014 Kay Sievers, 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 | ||
b5efdb8a | 20 | #include "alloc-util.h" |
84e51726 | 21 | #include "timesyncd-server.h" |
874ff7bf LP |
22 | |
23 | int server_address_new( | |
24 | ServerName *n, | |
25 | ServerAddress **ret, | |
26 | const union sockaddr_union *sockaddr, | |
27 | socklen_t socklen) { | |
28 | ||
29 | ServerAddress *a, *tail; | |
30 | ||
31 | assert(n); | |
32 | assert(sockaddr); | |
33 | assert(socklen >= offsetof(struct sockaddr, sa_data)); | |
34 | assert(socklen <= sizeof(union sockaddr_union)); | |
35 | ||
36 | a = new0(ServerAddress, 1); | |
37 | if (!a) | |
38 | return -ENOMEM; | |
39 | ||
40 | memcpy(&a->sockaddr, sockaddr, socklen); | |
41 | a->socklen = socklen; | |
42 | ||
43 | LIST_FIND_TAIL(addresses, n->addresses, tail); | |
44 | LIST_INSERT_AFTER(addresses, n->addresses, tail, a); | |
45 | a->name = n; | |
46 | ||
47 | if (ret) | |
48 | *ret = a; | |
49 | ||
50 | return 0; | |
51 | } | |
52 | ||
53 | ServerAddress* server_address_free(ServerAddress *a) { | |
54 | if (!a) | |
55 | return NULL; | |
56 | ||
57 | if (a->name) { | |
58 | LIST_REMOVE(addresses, a->name->addresses, a); | |
59 | ||
60 | if (a->name->manager && a->name->manager->current_server_address == a) | |
61 | manager_set_server_address(a->name->manager, NULL); | |
62 | } | |
63 | ||
6b430fdb | 64 | return mfree(a); |
874ff7bf LP |
65 | } |
66 | ||
67 | int server_name_new( | |
68 | Manager *m, | |
69 | ServerName **ret, | |
70 | ServerType type, | |
71 | const char *string) { | |
72 | ||
73 | ServerName *n, *tail; | |
74 | ||
75 | assert(m); | |
76 | assert(string); | |
77 | ||
78 | n = new0(ServerName, 1); | |
79 | if (!n) | |
80 | return -ENOMEM; | |
81 | ||
82 | n->type = type; | |
83 | n->string = strdup(string); | |
84 | if (!n->string) { | |
85 | free(n); | |
86 | return -ENOMEM; | |
87 | } | |
88 | ||
89 | if (type == SERVER_SYSTEM) { | |
90 | LIST_FIND_TAIL(names, m->system_servers, tail); | |
91 | LIST_INSERT_AFTER(names, m->system_servers, tail, n); | |
92 | } else if (type == SERVER_LINK) { | |
93 | LIST_FIND_TAIL(names, m->link_servers, tail); | |
94 | LIST_INSERT_AFTER(names, m->link_servers, tail, n); | |
95 | } else if (type == SERVER_FALLBACK) { | |
96 | LIST_FIND_TAIL(names, m->fallback_servers, tail); | |
97 | LIST_INSERT_AFTER(names, m->fallback_servers, tail, n); | |
98 | } else | |
99 | assert_not_reached("Unknown server type"); | |
100 | ||
101 | n->manager = m; | |
102 | ||
103 | if (type != SERVER_FALLBACK && | |
104 | m->current_server_name && | |
105 | m->current_server_name->type == SERVER_FALLBACK) | |
106 | manager_set_server_name(m, NULL); | |
107 | ||
108 | log_debug("Added new server %s.", string); | |
109 | ||
110 | if (ret) | |
111 | *ret = n; | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
116 | ServerName *server_name_free(ServerName *n) { | |
117 | if (!n) | |
118 | return NULL; | |
119 | ||
120 | server_name_flush_addresses(n); | |
121 | ||
122 | if (n->manager) { | |
123 | if (n->type == SERVER_SYSTEM) | |
124 | LIST_REMOVE(names, n->manager->system_servers, n); | |
125 | else if (n->type == SERVER_LINK) | |
126 | LIST_REMOVE(names, n->manager->link_servers, n); | |
127 | else if (n->type == SERVER_FALLBACK) | |
128 | LIST_REMOVE(names, n->manager->fallback_servers, n); | |
129 | else | |
130 | assert_not_reached("Unknown server type"); | |
131 | ||
132 | if (n->manager->current_server_name == n) | |
133 | manager_set_server_name(n->manager, NULL); | |
134 | } | |
135 | ||
136 | log_debug("Removed server %s.", n->string); | |
137 | ||
138 | free(n->string); | |
6b430fdb | 139 | return mfree(n); |
874ff7bf LP |
140 | } |
141 | ||
142 | void server_name_flush_addresses(ServerName *n) { | |
143 | assert(n); | |
144 | ||
145 | while (n->addresses) | |
146 | server_address_free(n->addresses); | |
147 | } |