Alexandre Lision | ddd731e | 2014-01-31 11:50:08 -0500 | [diff] [blame] | 1 | // Copyright (C) 2010 David Sugar, Tycho Softworks. |
| 2 | // |
| 3 | // This file is part of GNU uCommon C++. |
| 4 | // |
| 5 | // GNU uCommon C++ is free software: you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU Lesser General Public License as published |
| 7 | // by the Free Software Foundation, either version 3 of the License, or |
| 8 | // (at your option) any later version. |
| 9 | // |
| 10 | // GNU uCommon C++ is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU Lesser General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU Lesser General Public License |
| 16 | // along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | #include "local.h" |
| 19 | |
| 20 | extern "C" { |
| 21 | static void secure_shutdown(void) |
| 22 | { |
| 23 | gnutls_global_deinit(); |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | gnutls_priority_t context::priority_cache; |
| 28 | |
| 29 | bool secure::fips(void) |
| 30 | { |
| 31 | return false; |
| 32 | } |
| 33 | |
| 34 | bool secure::init(void) |
| 35 | { |
| 36 | static bool initialized = false; |
| 37 | |
| 38 | if(!initialized) { |
| 39 | Thread::init(); |
| 40 | Socket::init(); |
| 41 | |
| 42 | gnutls_global_init(); |
| 43 | gnutls_priority_init (&context::priority_cache, "NORMAL", NULL); |
| 44 | atexit(secure_shutdown); |
| 45 | initialized = true; |
| 46 | } |
| 47 | return true; |
| 48 | } |
| 49 | |
| 50 | secure::server_t secure::server(const char *certfile, const char *ca) |
| 51 | { |
| 52 | context *ctx = new context; |
| 53 | |
| 54 | if(!ctx) |
| 55 | return NULL; |
| 56 | |
| 57 | ctx->error = secure::OK; |
| 58 | ctx->connect = GNUTLS_SERVER; |
| 59 | ctx->xtype = GNUTLS_CRD_CERTIFICATE; |
| 60 | ctx->xcred = NULL; |
| 61 | ctx->dh = NULL; |
| 62 | gnutls_certificate_allocate_credentials(&ctx->xcred); |
| 63 | |
| 64 | gnutls_certificate_set_x509_key_file(ctx->xcred, certfile, certfile, GNUTLS_X509_FMT_PEM); |
| 65 | |
| 66 | if(!ca) |
| 67 | return ctx; |
| 68 | |
| 69 | if(eq(ca, "*")) |
| 70 | ca = oscerts(); |
| 71 | |
| 72 | gnutls_certificate_set_x509_trust_file (ctx->xcred, ca, GNUTLS_X509_FMT_PEM); |
| 73 | |
| 74 | return ctx; |
| 75 | } |
| 76 | |
| 77 | secure::client_t secure::client(const char *ca) |
| 78 | { |
| 79 | context *ctx = new context; |
| 80 | |
| 81 | if(!ctx) |
| 82 | return NULL; |
| 83 | |
| 84 | ctx->error = secure::OK; |
| 85 | ctx->connect = GNUTLS_CLIENT; |
| 86 | ctx->xtype = GNUTLS_CRD_CERTIFICATE; |
| 87 | ctx->xcred = NULL; |
| 88 | ctx->dh = NULL; |
| 89 | gnutls_certificate_allocate_credentials(&ctx->xcred); |
| 90 | |
| 91 | if(!ca) |
| 92 | return ctx; |
| 93 | |
| 94 | if(eq(ca, "*")) |
| 95 | ca = oscerts(); |
| 96 | |
| 97 | gnutls_certificate_set_x509_trust_file (ctx->xcred, ca, GNUTLS_X509_FMT_PEM); |
| 98 | |
| 99 | return ctx; |
| 100 | } |
| 101 | |
| 102 | context::~context() |
| 103 | { |
| 104 | if(dh) |
| 105 | gnutls_dh_params_deinit(dh); |
| 106 | |
| 107 | if(!xcred) |
| 108 | return; |
| 109 | |
| 110 | switch(xtype) { |
| 111 | case GNUTLS_CRD_ANON: |
| 112 | gnutls_anon_free_client_credentials((gnutls_anon_client_credentials_t)xcred); |
| 113 | break; |
| 114 | case GNUTLS_CRD_CERTIFICATE: |
| 115 | gnutls_certificate_free_credentials(xcred); |
| 116 | break; |
| 117 | default: |
| 118 | break; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | secure::~secure() |
| 123 | { |
| 124 | } |
| 125 | |
| 126 | gnutls_session_t context::session(context *ctx) |
| 127 | { |
| 128 | SSL ssl = NULL; |
| 129 | if(ctx && ctx->xcred && ctx->err() == secure::OK) { |
| 130 | gnutls_init(&ssl, ctx->connect); |
| 131 | switch(ctx->connect) { |
| 132 | case GNUTLS_CLIENT: |
| 133 | gnutls_priority_set_direct(ssl, "PERFORMANCE", NULL); |
| 134 | break; |
| 135 | case GNUTLS_SERVER: |
| 136 | gnutls_priority_set(ssl, context::priority_cache); |
| 137 | gnutls_certificate_server_set_request(ssl, GNUTLS_CERT_REQUEST); |
| 138 | gnutls_session_enable_compatibility_mode(ssl); |
| 139 | default: |
| 140 | break; |
| 141 | } |
| 142 | gnutls_credentials_set(ssl, ctx->xtype, ctx->xcred); |
| 143 | } |
| 144 | return ssl; |
| 145 | } |
| 146 | |
| 147 | |