1 | /* |
2 | * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include <openssl/conf.h> |
12 | #include <openssl/ssl.h> |
13 | #include "ssl_local.h" |
14 | #include "internal/sslconf.h" |
15 | |
16 | /* SSL library configuration module. */ |
17 | |
18 | void SSL_add_ssl_module(void) |
19 | { |
20 | /* Do nothing. This will be added automatically by libcrypto */ |
21 | } |
22 | |
23 | static int ssl_do_config(SSL *s, SSL_CTX *ctx, const char *name, int system) |
24 | { |
25 | SSL_CONF_CTX *cctx = NULL; |
26 | size_t i, idx, cmd_count; |
27 | int rv = 0; |
28 | unsigned int flags; |
29 | const SSL_METHOD *meth; |
30 | const SSL_CONF_CMD *cmds; |
31 | |
32 | if (s == NULL && ctx == NULL) { |
33 | SSLerr(SSL_F_SSL_DO_CONFIG, ERR_R_PASSED_NULL_PARAMETER); |
34 | goto err; |
35 | } |
36 | |
37 | if (name == NULL && system) |
38 | name = "system_default" ; |
39 | if (!conf_ssl_name_find(name, &idx)) { |
40 | if (!system) { |
41 | SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_INVALID_CONFIGURATION_NAME); |
42 | ERR_add_error_data(2, "name=" , name); |
43 | } |
44 | goto err; |
45 | } |
46 | cmds = conf_ssl_get(idx, &name, &cmd_count); |
47 | cctx = SSL_CONF_CTX_new(); |
48 | if (cctx == NULL) |
49 | goto err; |
50 | flags = SSL_CONF_FLAG_FILE; |
51 | if (!system) |
52 | flags |= SSL_CONF_FLAG_CERTIFICATE | SSL_CONF_FLAG_REQUIRE_PRIVATE; |
53 | if (s != NULL) { |
54 | meth = s->method; |
55 | SSL_CONF_CTX_set_ssl(cctx, s); |
56 | } else { |
57 | meth = ctx->method; |
58 | SSL_CONF_CTX_set_ssl_ctx(cctx, ctx); |
59 | } |
60 | if (meth->ssl_accept != ssl_undefined_function) |
61 | flags |= SSL_CONF_FLAG_SERVER; |
62 | if (meth->ssl_connect != ssl_undefined_function) |
63 | flags |= SSL_CONF_FLAG_CLIENT; |
64 | SSL_CONF_CTX_set_flags(cctx, flags); |
65 | for (i = 0; i < cmd_count; i++) { |
66 | char *cmdstr, *arg; |
67 | |
68 | conf_ssl_get_cmd(cmds, i, &cmdstr, &arg); |
69 | rv = SSL_CONF_cmd(cctx, cmdstr, arg); |
70 | if (rv <= 0) { |
71 | if (rv == -2) |
72 | SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_UNKNOWN_COMMAND); |
73 | else |
74 | SSLerr(SSL_F_SSL_DO_CONFIG, SSL_R_BAD_VALUE); |
75 | ERR_add_error_data(6, "section=" , name, ", cmd=" , cmdstr, |
76 | ", arg=" , arg); |
77 | goto err; |
78 | } |
79 | } |
80 | rv = SSL_CONF_CTX_finish(cctx); |
81 | err: |
82 | SSL_CONF_CTX_free(cctx); |
83 | return rv <= 0 ? 0 : 1; |
84 | } |
85 | |
86 | int SSL_config(SSL *s, const char *name) |
87 | { |
88 | return ssl_do_config(s, NULL, name, 0); |
89 | } |
90 | |
91 | int SSL_CTX_config(SSL_CTX *ctx, const char *name) |
92 | { |
93 | return ssl_do_config(NULL, ctx, name, 0); |
94 | } |
95 | |
96 | void ssl_ctx_system_config(SSL_CTX *ctx) |
97 | { |
98 | ssl_do_config(NULL, ctx, NULL, 1); |
99 | } |
100 | |