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1 | /* |
2 | * Copyright (c) 2015-2016 Red Hat, Inc. | |
3 | * | |
4 | * All rights reserved. | |
5 | * | |
6 | * Author: Jan Friesse (jfriesse@redhat.com) | |
7 | * | |
8 | * This software licensed under BSD license, the text of which follows: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or without | |
11 | * modification, are permitted provided that the following conditions are met: | |
12 | * | |
13 | * - Redistributions of source code must retain the above copyright notice, | |
14 | * this list of conditions and the following disclaimer. | |
15 | * - Redistributions in binary form must reproduce the above copyright notice, | |
16 | * this list of conditions and the following disclaimer in the documentation | |
17 | * and/or other materials provided with the distribution. | |
18 | * - Neither the name of the Red Hat, Inc. nor the names of its | |
19 | * contributors may be used to endorse or promote products derived from this | |
20 | * software without specific prior written permission. | |
21 | * | |
22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
32 | * THE POSSIBILITY OF SUCH DAMAGE. | |
33 | */ | |
34 | ||
35 | #include <sys/types.h> | |
36 | ||
37 | #include <pk11func.h> | |
38 | #include "qnetd-instance.h" | |
39 | #include "qnetd-client.h" | |
40 | #include "qnetd-algorithm.h" | |
41 | #include "qnetd-log-debug.h" | |
42 | #include "qnetd-dpd-timer.h" | |
43 | #include "qnetd-poll-array-user-data.h" | |
44 | #include "qnetd-client-algo-timer.h" | |
45 | ||
46 | int | |
47 | qnetd_instance_init(struct qnetd_instance *instance, | |
48 | enum tlv_tls_supported tls_supported, int tls_client_cert_required, size_t max_clients, | |
49 | const struct qnetd_advanced_settings *advanced_settings) | |
50 | { | |
51 | ||
52 | memset(instance, 0, sizeof(*instance)); | |
53 | ||
54 | instance->advanced_settings = advanced_settings; | |
55 | ||
56 | pr_poll_array_init(&instance->poll_array, sizeof(struct qnetd_poll_array_user_data)); | |
57 | qnetd_client_list_init(&instance->clients); | |
58 | qnetd_cluster_list_init(&instance->clusters); | |
59 | ||
60 | instance->tls_supported = tls_supported; | |
61 | instance->tls_client_cert_required = tls_client_cert_required; | |
62 | ||
63 | instance->max_clients = max_clients; | |
64 | ||
65 | timer_list_init(&instance->main_timer_list); | |
66 | ||
67 | if (qnetd_dpd_timer_init(instance) != 0) { | |
68 | return (0); | |
69 | } | |
70 | ||
71 | return (0); | |
72 | } | |
73 | ||
74 | int | |
75 | qnetd_instance_destroy(struct qnetd_instance *instance) | |
76 | { | |
77 | struct qnetd_client *client; | |
78 | struct qnetd_client *client_next; | |
79 | ||
80 | qnetd_dpd_timer_destroy(instance); | |
81 | ||
82 | client = TAILQ_FIRST(&instance->clients); | |
83 | while (client != NULL) { | |
84 | client_next = TAILQ_NEXT(client, entries); | |
85 | ||
86 | qnetd_instance_client_disconnect(instance, client, 1); | |
87 | ||
88 | client = client_next; | |
89 | } | |
90 | ||
91 | pr_poll_array_destroy(&instance->poll_array); | |
92 | qnetd_cluster_list_free(&instance->clusters); | |
93 | qnetd_client_list_free(&instance->clients); | |
94 | timer_list_free(&instance->main_timer_list); | |
95 | ||
96 | return (0); | |
97 | } | |
98 | ||
99 | void | |
100 | qnetd_instance_client_disconnect(struct qnetd_instance *instance, struct qnetd_client *client, | |
101 | int server_going_down) | |
102 | { | |
103 | ||
104 | qnetd_log_debug_client_disconnect(client, server_going_down); | |
105 | ||
106 | if (client->init_received) { | |
107 | qnetd_algorithm_client_disconnect(client, server_going_down); | |
108 | } | |
109 | ||
110 | PR_Close(client->socket); | |
111 | if (client->cluster != NULL) { | |
112 | qnetd_cluster_list_del_client(&instance->clusters, client->cluster, client); | |
113 | } | |
114 | qnetd_client_algo_timer_abort(client); | |
115 | qnetd_client_list_del(&instance->clients, client); | |
116 | } | |
117 | ||
118 | int | |
119 | qnetd_instance_init_certs(struct qnetd_instance *instance) | |
120 | { | |
121 | ||
122 | instance->server.cert = PK11_FindCertFromNickname( | |
123 | instance->advanced_settings->cert_nickname, NULL); | |
124 | if (instance->server.cert == NULL) { | |
125 | return (-1); | |
126 | } | |
127 | ||
128 | instance->server.private_key = PK11_FindKeyByAnyCert(instance->server.cert, NULL); | |
129 | if (instance->server.private_key == NULL) { | |
130 | return (-1); | |
131 | } | |
132 | ||
133 | return (0); | |
134 | } |