1 /*
2 * libwebsockets - small server side websockets and web server implementation
3 *
4 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 #ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
26 #define _WINSOCK_DEPRECATED_NO_WARNINGS
27 #endif
28 #include "private-lib-core.h"
29
30 int
lws_plat_drop_app_privileges(struct lws_context * context,int actually_set)31 lws_plat_drop_app_privileges(struct lws_context *context, int actually_set)
32 {
33 return 0;
34 }
35
36 int
lws_plat_context_early_init(void)37 lws_plat_context_early_init(void)
38 {
39 WORD wVersionRequested;
40 WSADATA wsaData;
41 int err;
42
43 /* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */
44 wVersionRequested = MAKEWORD(2, 2);
45
46 err = WSAStartup(wVersionRequested, &wsaData);
47 if (!err)
48 return 0;
49 /*
50 * Tell the user that we could not find a usable
51 * Winsock DLL
52 */
53 lwsl_err("WSAStartup failed with error: %d\n", err);
54
55 return 1;
56 }
57
58 #if defined(LWS_WITH_PLUGINS)
59 static int
protocol_plugin_cb(struct lws_plugin * pin,void * each_user)60 protocol_plugin_cb(struct lws_plugin *pin, void *each_user)
61 {
62 struct lws_context *context = (struct lws_context *)each_user;
63 const lws_plugin_protocol_t *plpr =
64 (const lws_plugin_protocol_t *)pin->hdr;
65
66 context->plugin_protocol_count += plpr->count_protocols;
67 context->plugin_extension_count += plpr->count_extensions;
68
69 return 0;
70 }
71 #endif
72
73 int
lws_plat_init(struct lws_context * context,const struct lws_context_creation_info * info)74 lws_plat_init(struct lws_context *context,
75 const struct lws_context_creation_info *info)
76 {
77 struct lws_context_per_thread *pt = &context->pt[0];
78 int i, n = context->count_threads;
79
80 #if defined(LWS_WITH_MBEDTLS)
81 {
82 int n;
83
84 /* initialize platform random through mbedtls */
85 mbedtls_entropy_init(&context->mec);
86 mbedtls_ctr_drbg_init(&context->mcdc);
87
88 n = mbedtls_ctr_drbg_seed(&context->mcdc, mbedtls_entropy_func,
89 &context->mec, NULL, 0);
90 if (n)
91 lwsl_err("%s: mbedtls_ctr_drbg_seed() returned 0x%x\n",
92 __func__, n);
93 #if 0
94 else {
95 uint8_t rtest[16];
96 lwsl_notice("%s: started drbg\n", __func__);
97 if (mbedtls_ctr_drbg_random(&context->mcdc, rtest,
98 sizeof(rtest)))
99 lwsl_err("%s: get random failed\n", __func__);
100 else
101 lwsl_hexdump_notice(rtest, sizeof(rtest));
102 }
103 #endif
104 }
105 #endif
106
107 for (i = 0; i < FD_HASHTABLE_MODULUS; i++) {
108 context->fd_hashtable[i].wsi =
109 lws_zalloc(sizeof(struct lws*) * context->max_fds,
110 "win hashtable");
111
112 if (!context->fd_hashtable[i].wsi)
113 return -1;
114 }
115
116 while (n--) {
117 pt->fds_count = 0;
118
119 pt++;
120 }
121
122 context->fd_random = 0;
123
124 #if defined(LWS_WITH_PLUGINS)
125 if (info->plugin_dirs)
126 lws_plat_plugins_init(&context->plugin_list, info->plugin_dirs,
127 "lws_protocol_plugin",
128 protocol_plugin_cb, context);
129 #endif
130
131 return 0;
132 }
133
134 void
lws_plat_context_early_destroy(struct lws_context * context)135 lws_plat_context_early_destroy(struct lws_context *context)
136 {
137
138 }
139
140 void
lws_plat_context_late_destroy(struct lws_context * context)141 lws_plat_context_late_destroy(struct lws_context *context)
142 {
143 int n;
144
145 #ifdef LWS_WITH_PLUGINS
146 if (context->plugin_list)
147 lws_plugins_destroy(&context->plugin_list, NULL, NULL);
148 #endif
149
150 for (n = 0; n < FD_HASHTABLE_MODULUS; n++) {
151 if (context->fd_hashtable[n].wsi)
152 lws_free(context->fd_hashtable[n].wsi);
153 }
154
155 WSACleanup();
156 }
157