1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #ifndef _NGX_EVENT_OPENSSL_H_INCLUDED_
8 #define _NGX_EVENT_OPENSSL_H_INCLUDED_
9
10
11 #include <ngx_config.h>
12 #include <ngx_core.h>
13
14 #include <openssl/ssl.h>
15 #include <openssl/err.h>
16
17 #if OPENSSL_VERSION_NUMBER >= 0x00907000
18 #include <openssl/conf.h>
19 #include <openssl/engine.h>
20 #define NGX_SSL_ENGINE 1
21 #endif
22
23 #define NGX_SSL_NAME "OpenSSL"
24
25
26 #define ngx_ssl_session_t SSL_SESSION
27 #define ngx_ssl_conn_t SSL
28
29
30 typedef struct {
31 SSL_CTX *ctx;
32 ngx_log_t *log;
33 } ngx_ssl_t;
34
35
36 typedef struct {
37 ngx_ssl_conn_t *connection;
38
39 ngx_int_t last;
40 ngx_buf_t *buf;
41
42 ngx_connection_handler_pt handler;
43
44 ngx_event_handler_pt saved_read_handler;
45 ngx_event_handler_pt saved_write_handler;
46
47 unsigned handshaked:1;
48 unsigned buffer:1;
49 unsigned no_wait_shutdown:1;
50 unsigned no_send_shutdown:1;
51 } ngx_ssl_connection_t;
52
53
54 #define NGX_SSL_DFLT_BUILTIN_SCACHE -2
55 #define NGX_SSL_NO_BUILTIN_SCACHE -3
56 #define NGX_SSL_NO_SCACHE -4
57
58
59 #define NGX_SSL_MAX_SESSION_SIZE 4096
60
61 typedef struct ngx_ssl_sess_id_s ngx_ssl_sess_id_t;
62
63 struct ngx_ssl_sess_id_s {
64 ngx_rbtree_node_t node;
65 u_char *id;
66 size_t len;
67 u_char *session;
68 ngx_queue_t queue;
69 time_t expire;
70 #if (NGX_PTR_SIZE == 8)
71 void *stub;
72 u_char sess_id[32];
73 #endif
74 };
75
76
77 typedef struct {
78 ngx_rbtree_t session_rbtree;
79 ngx_rbtree_node_t sentinel;
80 ngx_queue_t expire_queue;
81 } ngx_ssl_session_cache_t;
82
83
84
85 #define NGX_SSL_SSLv2 2
86 #define NGX_SSL_SSLv3 4
87 #define NGX_SSL_TLSv1 8
88
89
90 #define NGX_SSL_BUFFER 1
91 #define NGX_SSL_CLIENT 2
92
93 #define NGX_SSL_BUFSIZE 16384
94
95
96 ngx_int_t ngx_ssl_init(ngx_log_t *log);
97 ngx_int_t ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data);
98 ngx_int_t ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl,
99 ngx_str_t *cert, ngx_str_t *key);
100 ngx_int_t ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl,
101 ngx_str_t *cert, ngx_int_t depth);
102 ngx_int_t ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl);
103 ngx_int_t ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
104 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout);
105 ngx_int_t ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c,
106 ngx_uint_t flags);
107
108 ngx_int_t ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session);
109 #define ngx_ssl_get_session(c) SSL_get1_session(c->ssl->connection)
110 #define ngx_ssl_free_session SSL_SESSION_free
111 #define ngx_ssl_get_connection(ssl_conn) \
112 SSL_get_ex_data(ssl_conn, ngx_ssl_connection_index)
113 #define ngx_ssl_get_server_conf(ssl_ctx) \
114 SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_server_conf_index)
115
116
117 ngx_int_t ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool,
118 ngx_str_t *s);
119 ngx_int_t ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool,
120 ngx_str_t *s);
121 ngx_int_t ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool,
122 ngx_str_t *s);
123 ngx_int_t ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool,
124 ngx_str_t *s);
125 ngx_int_t ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool,
126 ngx_str_t *s);
127
128
129 ngx_int_t ngx_ssl_handshake(ngx_connection_t *c);
130 ssize_t ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size);
131 ssize_t ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size);
132 ssize_t ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl);
133 ngx_chain_t *ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in,
134 off_t limit);
135 void ngx_ssl_free_buffer(ngx_connection_t *c);
136 ngx_int_t ngx_ssl_shutdown(ngx_connection_t *c);
137 void ngx_cdecl ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
138 char *fmt, ...);
139 void ngx_ssl_cleanup_ctx(void *data);
140
141
142 extern int ngx_ssl_connection_index;
143 extern int ngx_ssl_server_conf_index;
144 extern int ngx_ssl_session_cache_index;
145
146
147 #endif /* _NGX_EVENT_OPENSSL_H_INCLUDED_ */
148
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