[0e678a]: openssl / secure.cpp  Maximize  Restore  History

Download this file

350 lines (279 with data), 7.9 kB

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
// Copyright (C) 2010 David Sugar, Tycho Softworks.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU uCommon C++ is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#include "local.h"
#ifdef HAVE_OPENSSL_FIPS_H
#include <openssl/fips.h>
#endif
static mutex_t *private_locks = NULL;
static const char *certid = "generic";
extern "C" {
static void ssl_lock(int mode, int n, const char *file, int line)
{
if((mode & 0x03) == CRYPTO_LOCK)
private_locks[n].acquire();
else if((mode & 0x03) == CRYPTO_UNLOCK)
private_locks[n].release();
}
static unsigned long ssl_self(void)
{
#ifdef _MSWINDOWS_
return GetCurrentThreadId();
#else
return (long)Thread::self();
#endif
}
}
bool secure::fips(const char *progname)
{
#ifdef HAVE_OPENSSL_FIPS_H
// must always be first init function called...
if(private_locks)
return false;
if(!FIPS_mode_set(1))
return false;
return init(progname);
#else
return false;
#endif
}
bool secure::init(const char *progname)
{
if(private_locks)
return true;
Thread::init();
if(progname) {
certid = progname;
Socket::init(progname);
}
else
Socket::init();
SSL_library_init();
SSL_load_error_strings();
ERR_load_BIO_strings();
OpenSSL_add_all_algorithms();
OpenSSL_add_all_digests();
if(CRYPTO_get_id_callback() != NULL)
return false;
private_locks = new Mutex[CRYPTO_num_locks()];
CRYPTO_set_id_callback(ssl_self);
CRYPTO_set_locking_callback(ssl_lock);
return true;
}
String secure::path(path_t id)
{
switch(id) {
case SYSTEM_CERTIFICATES:
return str(SSL_CERTS);
case SYSTEM_KEYS:
return str(SSL_PRIVATE);
}
return str("");
}
#if defined(_MSWINDOWS_)
static void cexport(HCERTSTORE ca, FILE *fp)
{
PCCERT_CONTEXT cert = NULL;
const uint8_t *cp;
char buf[80];
while ((cert = CertEnumCertificatesInStore(ca, cert)) != NULL) {
fprintf(fp, "-----BEGIN CERTIFICATE-----\n");
size_t total = cert->cbCertEncoded;
size_t count;
cp = (const uint8_t *)cert->pbCertEncoded;
while(total) {
count = String::b64encode(buf, cp, total, 64);
if(count)
fprintf(fp, "%s\n", buf);
total -= count;
cp += count;
}
fprintf(fp, "-----END CERTIFICATE-----\n");
}
}
int secure::oscerts(const char *pathname)
{
bool caset;
string_t target = shell::path(shell::USER_CONFIG) + pathname;
FILE *fp = fopen(*target, "wt");
if(!fp)
return ENOSYS;
HCERTSTORE ca = CertOpenSystemStoreA(NULL, "ROOT");
if(ca) {
caset = true;
cexport(ca, fp);
CertCloseStore(ca, 0);
}
ca = CertOpenSystemStoreA(NULL, "CA");
if(ca) {
caset = true;
cexport(ca, fp);
CertCloseStore(ca, 0);
}
fclose(fp);
if(!caset) {
fsys::remove(*target);
return ENOSYS;
}
return 0;
}
#else
int secure::oscerts(const char *pathname)
{
string_t source = path(SYSTEM_CERTIFICATES) + "/ca-certificates.crt";
string_t target = shell::path(shell::USER_CONFIG) + pathname;
if(!*source || !*target)
return ENOSYS;
return fsys::copy(*source, *target);
}
#endif
void secure::cipher(secure *scontext, const char *ciphers)
{
context *ctx = (context *)scontext;
if(!ctx)
return;
SSL_CTX_set_cipher_list(ctx->ctx, ciphers);
}
secure::client_t secure::client(const char *ca)
{
char certfile[256];
context *ctx = new(context);
secure::init();
if(!ctx)
return NULL;
ctx->error = secure::OK;
ctx->ctx = SSL_CTX_new(SSLv23_client_method());
if(!ctx->ctx) {
ctx->error = secure::INVALID;
return ctx;
}
if(!ca)
return ctx;
if(eq(ca, "*"))
ca = SSL_CERTS;
else if(*ca != '/') {
snprintf(certfile, sizeof(certfile), "%s/%s.pem", SSL_CERTS, ca);
ca = certfile;
}
if(!SSL_CTX_load_verify_locations(ctx->ctx, ca, 0)) {
ctx->error = secure::INVALID_AUTHORITY;
return ctx;
}
return ctx;
}
secure::server_t secure::server(const char *ca)
{
context *ctx = new(context);
if(!ctx)
return NULL;
secure::init();
ctx->error = secure::OK;
ctx->ctx = SSL_CTX_new(SSLv23_server_method());
if(!ctx->ctx) {
ctx->error = secure::INVALID;
return ctx;
}
char certfile[256];
snprintf(certfile, sizeof(certfile), "%s/%s.pem", SSL_CERTS, certid);
if(!SSL_CTX_use_certificate_chain_file(ctx->ctx, certfile)) {
ctx->error = secure::MISSING_CERTIFICATE;
return ctx;
}
snprintf(certfile, sizeof(certfile), "%s/%s.pem", SSL_PRIVATE, certid);
if(!SSL_CTX_use_PrivateKey_file(ctx->ctx, certfile, SSL_FILETYPE_PEM)) {
ctx->error = secure::MISSING_PRIVATEKEY;
return ctx;
}
if(!SSL_CTX_check_private_key(ctx->ctx)) {
ctx->error = secure::INVALID_CERTIFICATE;
return ctx;
}
if(!ca)
return ctx;
if(eq(ca, "*"))
ca = SSL_CERTS;
else if(*ca != '/') {
snprintf(certfile, sizeof(certfile), "%s/%s.pem", SSL_CERTS, ca);
ca = certfile;
}
if(!SSL_CTX_load_verify_locations(ctx->ctx, ca, 0)) {
ctx->error = secure::INVALID_AUTHORITY;
return ctx;
}
return ctx;
}
secure::error_t secure::verify(session_t session, const char *peername)
{
SSL *ssl = (SSL *)session;
char peer_cn[256];
if(SSL_get_verify_result(ssl) != X509_V_OK)
return secure::INVALID_CERTIFICATE;
if(!peername)
return secure::OK;
X509 *peer = SSL_get_peer_certificate(ssl);
if(!peer)
return secure::INVALID_PEERNAME;
X509_NAME_get_text_by_NID(
X509_get_subject_name(peer),
NID_commonName, peer_cn, sizeof(peer_cn));
if(!case_eq(peer_cn, peername))
return secure::INVALID_PEERNAME;
return secure::OK;
}
secure::~secure()
{
}
context::~context()
{
if(ctx)
SSL_CTX_free(ctx);
}
void secure::uuid(char *str)
{
static unsigned char buf[16];
static Timer::tick_t prior = 0l;
static unsigned short seq;
Timer::tick_t current = Timer::ticks();
Mutex::protect(&buf);
// get our (random) node identifier...
if(!prior)
Random::fill(buf + 10, 6);
if(current == prior)
++seq;
else
Random::fill((unsigned char *)&seq, sizeof(seq));
buf[8] = (unsigned char)((seq >> 8) & 0xff);
buf[9] = (unsigned char)(seq & 0xff);
buf[3] = (unsigned char)(current & 0xff);
buf[2] = (unsigned char)((current >> 8) & 0xff);
buf[1] = (unsigned char)((current >> 16) & 0xff);
buf[0] = (unsigned char)((current >> 24) & 0xff);
buf[5] = (unsigned char)((current >> 32) & 0xff);
buf[4] = (unsigned char)((current >> 40) & 0xff);
buf[7] = (unsigned char)((current >> 48) & 0xff);
buf[6] = (unsigned char)((current >> 56) & 0xff);
buf[6] &= 0x0f;
buf[6] |= 0x10;
buf[8] |= 0x80;
String::hexdump(buf, str, "4-2-2-2-6");
Mutex::release(&buf);
}
String secure::uuid(void)
{
char buf[38];
uuid(buf);
return String(buf);
}

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:





No, thanks