| 1 | /* |
| 2 | * uhttpd - Tiny single-threaded httpd - TLS helper |
| 3 | * |
| 4 | * Copyright (C) 2010 Jo-Philipp Wich <xm@subsignal.org> |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | #include "uhttpd.h" |
| 20 | #include "uhttpd-tls.h" |
| 21 | #include "uhttpd-utils.h" |
| 22 | |
| 23 | |
| 24 | SSL_CTX * uh_tls_ctx_init() |
| 25 | { |
| 26 | SSL_CTX *c = NULL; |
| 27 | SSL_load_error_strings(); |
| 28 | SSL_library_init(); |
| 29 | |
| 30 | if( (c = SSL_CTX_new(TLSv1_server_method())) != NULL ) |
| 31 | SSL_CTX_set_verify(c, SSL_VERIFY_NONE, NULL); |
| 32 | |
| 33 | return c; |
| 34 | } |
| 35 | |
| 36 | int uh_tls_ctx_cert(SSL_CTX *c, const char *file) |
| 37 | { |
| 38 | int rv; |
| 39 | |
| 40 | if( (rv = SSL_CTX_use_certificate_file(c, file, SSL_FILETYPE_PEM)) < 1 ) |
| 41 | rv = SSL_CTX_use_certificate_file(c, file, SSL_FILETYPE_ASN1); |
| 42 | |
| 43 | return rv; |
| 44 | } |
| 45 | |
| 46 | int uh_tls_ctx_key(SSL_CTX *c, const char *file) |
| 47 | { |
| 48 | int rv; |
| 49 | |
| 50 | if( (rv = SSL_CTX_use_PrivateKey_file(c, file, SSL_FILETYPE_PEM)) < 1 ) |
| 51 | rv = SSL_CTX_use_PrivateKey_file(c, file, SSL_FILETYPE_ASN1); |
| 52 | |
| 53 | return rv; |
| 54 | } |
| 55 | |
| 56 | void uh_tls_ctx_free(struct listener *l) |
| 57 | { |
| 58 | SSL_CTX_free(l->tls); |
| 59 | } |
| 60 | |
| 61 | |
| 62 | void uh_tls_client_accept(struct client *c) |
| 63 | { |
| 64 | if( c->server && c->server->tls ) |
| 65 | { |
| 66 | c->tls = SSL_new(c->server->tls); |
| 67 | SSL_set_fd(c->tls, c->socket); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | int uh_tls_client_recv(struct client *c, void *buf, int len) |
| 72 | { |
| 73 | int rv = SSL_read(c->tls, buf, len); |
| 74 | return (rv > 0) ? rv : -1; |
| 75 | } |
| 76 | |
| 77 | int uh_tls_client_send(struct client *c, void *buf, int len) |
| 78 | { |
| 79 | int rv = SSL_write(c->tls, buf, len); |
| 80 | return (rv > 0) ? rv : -1; |
| 81 | } |
| 82 | |
| 83 | void uh_tls_client_close(struct client *c) |
| 84 | { |
| 85 | if( c->tls ) |
| 86 | { |
| 87 | SSL_shutdown(c->tls); |
| 88 | SSL_free(c->tls); |
| 89 | |
| 90 | c->tls = NULL; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | |
| 95 | |
