2 * ssl manipulation functions
3 * By Paolo Abeni <paolo.abeni@email.com>
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 #include "packet-ssl-utils.h"
38 #include <epan/emem.h>
39 #include <epan/strutil.h>
40 #include <wiretap/file_util.h>
46 const value_string ssl_20_msg_types[] = {
47 { SSL2_HND_ERROR, "Error" },
48 { SSL2_HND_CLIENT_HELLO, "Client Hello" },
49 { SSL2_HND_CLIENT_MASTER_KEY, "Client Master Key" },
50 { SSL2_HND_CLIENT_FINISHED, "Client Finished" },
51 { SSL2_HND_SERVER_HELLO, "Server Hello" },
52 { SSL2_HND_SERVER_VERIFY, "Server Verify" },
53 { SSL2_HND_SERVER_FINISHED, "Server Finished" },
54 { SSL2_HND_REQUEST_CERTIFICATE, "Request Certificate" },
55 { SSL2_HND_CLIENT_CERTIFICATE, "Client Certificate" },
59 const value_string ssl_20_cipher_suites[] = {
60 { 0x010080, "SSL2_RC4_128_WITH_MD5" },
61 { 0x020080, "SSL2_RC4_128_EXPORT40_WITH_MD5" },
62 { 0x030080, "SSL2_RC2_CBC_128_CBC_WITH_MD5" },
63 { 0x040080, "SSL2_RC2_CBC_128_CBC_WITH_MD5" },
64 { 0x050080, "SSL2_IDEA_128_CBC_WITH_MD5" },
65 { 0x060040, "SSL2_DES_64_CBC_WITH_MD5" },
66 { 0x0700c0, "SSL2_DES_192_EDE3_CBC_WITH_MD5" },
67 { 0x080080, "SSL2_RC4_64_WITH_MD5" },
68 { 0x000000, "TLS_NULL_WITH_NULL_NULL" },
69 { 0x000001, "TLS_RSA_WITH_NULL_MD5" },
70 { 0x000002, "TLS_RSA_WITH_NULL_SHA" },
71 { 0x000003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" },
72 { 0x000004, "TLS_RSA_WITH_RC4_128_MD5" },
73 { 0x000005, "TLS_RSA_WITH_RC4_128_SHA" },
74 { 0x000006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" },
75 { 0x000007, "TLS_RSA_WITH_IDEA_CBC_SHA" },
76 { 0x000008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" },
77 { 0x000009, "TLS_RSA_WITH_DES_CBC_SHA" },
78 { 0x00000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" },
79 { 0x00000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" },
80 { 0x00000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" },
81 { 0x00000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" },
82 { 0x00000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" },
83 { 0x00000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" },
84 { 0x000010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" },
85 { 0x000011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" },
86 { 0x000012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" },
87 { 0x000013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" },
88 { 0x000014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" },
89 { 0x000015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" },
90 { 0x000016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" },
91 { 0x000017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" },
92 { 0x000018, "TLS_DH_anon_WITH_RC4_128_MD5" },
93 { 0x000019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" },
94 { 0x00001a, "TLS_DH_anon_WITH_DES_CBC_SHA" },
95 { 0x00001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" },
96 { 0x00001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" },
97 { 0x00001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" },
98 { 0x00001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" },
99 { 0x00002f, "TLS_RSA_WITH_AES_128_CBC_SHA" },
100 { 0x000030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" },
101 { 0x000031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" },
102 { 0x000032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" },
103 { 0x000033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" },
104 { 0x000034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" },
105 { 0x000035, "TLS_RSA_WITH_AES_256_CBC_SHA" },
106 { 0x000036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" },
107 { 0x000037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" },
108 { 0x000038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" },
109 { 0x000039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" },
110 { 0x00003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" },
111 { 0x000041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" },
112 { 0x000042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" },
113 { 0x000043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" },
114 { 0x000044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" },
115 { 0x000045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" },
116 { 0x000046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" },
117 { 0x000047, "TLS_ECDH_ECDSA_WITH_NULL_SHA" },
118 { 0x000048, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" },
119 { 0x000049, "TLS_ECDH_ECDSA_WITH_DES_CBC_SHA" },
120 { 0x00004A, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" },
121 { 0x00004B, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" },
122 { 0x00004C, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" },
123 { 0x000060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" },
124 { 0x000061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" },
125 { 0x000062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" },
126 { 0x000063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" },
127 { 0x000064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" },
128 { 0x000065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" },
129 { 0x000066, "TLS_DHE_DSS_WITH_RC4_128_SHA" },
130 { 0x000084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" },
131 { 0x000085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" },
132 { 0x000086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" },
133 { 0x000087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" },
134 { 0x000088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" },
135 { 0x000089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" },
136 /* these from http://www.mozilla.org/projects/
137 security/pki/nss/ssl/fips-ssl-ciphersuites.html */
138 { 0x00fefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
139 { 0x00feff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
140 { 0x00ffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
141 { 0x00ffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
142 /* Microsoft's old PCT protocol. These are from Eric Rescorla's
143 book "SSL and TLS" */
144 { 0x8f8001, "PCT_SSL_COMPAT | PCT_VERSION_1" },
145 { 0x800003, "PCT_SSL_CERT_TYPE | PCT1_CERT_X509_CHAIN" },
146 { 0x800001, "PCT_SSL_CERT_TYPE | PCT1_CERT_X509" },
147 { 0x810001, "PCT_SSL_HASH_TYPE | PCT1_HASH_MD5" },
148 { 0x810003, "PCT_SSL_HASH_TYPE | PCT1_HASH_SHA" },
149 { 0x820001, "PCT_SSL_EXCH_TYPE | PCT1_EXCH_RSA_PKCS1" },
150 { 0x830004, "PCT_SSL_CIPHER_TYPE_1ST_HALF | PCT1_CIPHER_RC4" },
151 { 0x848040, "PCT_SSL_CIPHER_TYPE_2ND_HALF | PCT1_ENC_BITS_128 | PCT1_MAC_BITS_128" },
152 { 0x842840, "PCT_SSL_CIPHER_TYPE_2ND_HALF | PCT1_ENC_BITS_40 | PCT1_MAC_BITS_128" },
153 /* note that ciphersuites of {0x00????} are TLS cipher suites in
154 * a sslv2 client hello message; the ???? above is the two-byte
155 * tls cipher suite id
160 const value_string ssl_20_certificate_type[] = {
162 { 0x01, "X.509 Certificate" },
166 const value_string ssl_31_content_type[] = {
167 { 20, "Change Cipher Spec" },
170 { 23, "Application Data" },
174 const value_string ssl_versions[] = {
175 { 0xfeff, "DTLS 1.0" },
176 { 0x0100, "DTLS 1.0 (OpenSSL pre 0.9.8f)" },
177 { 0x0302, "TLS 1.1" },
178 { 0x0301, "TLS 1.0" },
179 { 0x0300, "SSL 3.0" },
180 { 0x0002, "SSL 2.0" },
185 /* XXX - would be used if we dissected the body of a Change Cipher Spec
187 const value_string ssl_31_change_cipher_spec[] = {
188 { 1, "Change Cipher Spec" },
193 const value_string ssl_31_alert_level[] = {
199 const value_string ssl_31_alert_description[] = {
200 { 0, "Close Notify" },
201 { 10, "Unexpected Message" },
202 { 20, "Bad Record MAC" },
203 { 21, "Decryption Failed" },
204 { 22, "Record Overflow" },
205 { 30, "Decompression Failure" },
206 { 40, "Handshake Failure" },
207 { 42, "Bad Certificate" },
208 { 43, "Unsupported Certificate" },
209 { 44, "Certificate Revoked" },
210 { 45, "Certificate Expired" },
211 { 46, "Certificate Unknown" },
212 { 47, "Illegal Parameter" },
213 { 48, "Unknown CA" },
214 { 49, "Access Denied" },
215 { 50, "Decode Error" },
216 { 51, "Decrypt Error" },
217 { 60, "Export Restriction" },
218 { 70, "Protocol Version" },
219 { 71, "Insufficient Security" },
220 { 80, "Internal Error" },
221 { 90, "User Canceled" },
222 { 100, "No Renegotiation" },
226 const value_string ssl_31_handshake_type[] = {
227 { SSL_HND_HELLO_REQUEST, "Hello Request" },
228 { SSL_HND_CLIENT_HELLO, "Client Hello" },
229 { SSL_HND_SERVER_HELLO, "Server Hello" },
230 { SSL_HND_HELLO_VERIFY_REQUEST, "Hello Verify Request"},
231 { SSL_HND_CERTIFICATE, "Certificate" },
232 { SSL_HND_SERVER_KEY_EXCHG, "Server Key Exchange" },
233 { SSL_HND_CERT_REQUEST, "Certificate Request" },
234 { SSL_HND_SVR_HELLO_DONE, "Server Hello Done" },
235 { SSL_HND_CERT_VERIFY, "Certificate Verify" },
236 { SSL_HND_CLIENT_KEY_EXCHG, "Client Key Exchange" },
237 { SSL_HND_FINISHED, "Finished" },
241 const value_string ssl_31_compression_method[] = {
249 /* XXX - would be used if we dissected a Signature, as would be
250 seen in a server key exchange or certificate verify message. */
251 const value_string ssl_31_key_exchange_algorithm[] = {
253 { 1, "Diffie Hellman" },
257 const value_string ssl_31_signature_algorithm[] = {
265 const value_string ssl_31_client_certificate_type[] = {
268 { 3, "RSA Fixed DH" },
269 { 4, "DSS Fixed DH" },
274 /* XXX - would be used if we dissected exchange keys, as would be
275 seen in a client key exchange message. */
276 const value_string ssl_31_public_value_encoding[] = {
283 const value_string ssl_31_ciphersuite[] = {
284 /* RFC 2246, RFC 4346 */
285 { 0x0000, "TLS_NULL_WITH_NULL_NULL" },
286 { 0x0001, "TLS_RSA_WITH_NULL_MD5" },
287 { 0x0002, "TLS_RSA_WITH_NULL_SHA" },
288 { 0x0003, "TLS_RSA_EXPORT_WITH_RC4_40_MD5" },
289 { 0x0004, "TLS_RSA_WITH_RC4_128_MD5" },
290 { 0x0005, "TLS_RSA_WITH_RC4_128_SHA" },
291 { 0x0006, "TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5" },
292 { 0x0007, "TLS_RSA_WITH_IDEA_CBC_SHA" },
293 { 0x0008, "TLS_RSA_EXPORT_WITH_DES40_CBC_SHA" },
294 { 0x0009, "TLS_RSA_WITH_DES_CBC_SHA" },
295 { 0x000a, "TLS_RSA_WITH_3DES_EDE_CBC_SHA" },
296 { 0x000b, "TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA" },
297 { 0x000c, "TLS_DH_DSS_WITH_DES_CBC_SHA" },
298 { 0x000d, "TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA" },
299 { 0x000e, "TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA" },
300 { 0x000f, "TLS_DH_RSA_WITH_DES_CBC_SHA" },
301 { 0x0010, "TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA" },
302 { 0x0011, "TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA" },
303 { 0x0012, "TLS_DHE_DSS_WITH_DES_CBC_SHA" },
304 { 0x0013, "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA" },
305 { 0x0014, "TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA" },
306 { 0x0015, "TLS_DHE_RSA_WITH_DES_CBC_SHA" },
307 { 0x0016, "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA" },
308 { 0x0017, "TLS_DH_anon_EXPORT_WITH_RC4_40_MD5" },
309 { 0x0018, "TLS_DH_anon_WITH_RC4_128_MD5" },
310 { 0x0019, "TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA" },
311 { 0x001a, "TLS_DH_anon_WITH_DES_CBC_SHA" },
312 { 0x001b, "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA" },
314 { 0x001c, "SSL_FORTEZZA_KEA_WITH_NULL_SHA" },
315 { 0x001d, "SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA" },
316 #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
317 to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
318 of the ietf-tls list */
319 { 0x001e, "SSL_FORTEZZA_KEA_WITH_RC4_128_SHA" },
323 { 0x001E, "TLS_KRB5_WITH_DES_CBC_SHA" },
324 { 0x001F, "TLS_KRB5_WITH_3DES_EDE_CBC_SHA" },
325 { 0x0020, "TLS_KRB5_WITH_RC4_128_SHA" },
326 { 0x0021, "TLS_KRB5_WITH_IDEA_CBC_SHA" },
327 { 0x0022, "TLS_KRB5_WITH_DES_CBC_MD5" },
328 { 0x0023, "TLS_KRB5_WITH_3DES_EDE_CBC_MD5" },
329 { 0x0024, "TLS_KRB5_WITH_RC4_128_MD5" },
330 { 0x0025, "TLS_KRB5_WITH_IDEA_CBC_MD5" },
331 { 0x0026, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA" },
332 { 0x0027, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA" },
333 { 0x0028, "TLS_KRB5_EXPORT_WITH_RC4_40_SHA" },
334 { 0x0029, "TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5" },
335 { 0x002A, "TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5" },
336 { 0x002B, "TLS_KRB5_EXPORT_WITH_RC4_40_MD5" },
339 { 0x002C, "TLS_PSK_WITH_NULL_SHA" },
340 { 0x002D, "TLS_DHE_PSK_WITH_NULL_SHA" },
341 { 0x002E, "TLS_RSA_PSK_WITH_NULL_SHA" },
344 { 0x002F, "TLS_RSA_WITH_AES_128_CBC_SHA" },
345 { 0x0030, "TLS_DH_DSS_WITH_AES_128_CBC_SHA" },
346 { 0x0031, "TLS_DH_RSA_WITH_AES_128_CBC_SHA" },
347 { 0x0032, "TLS_DHE_DSS_WITH_AES_128_CBC_SHA" },
348 { 0x0033, "TLS_DHE_RSA_WITH_AES_128_CBC_SHA" },
349 { 0x0034, "TLS_DH_anon_WITH_AES_128_CBC_SHA" },
350 { 0x0035, "TLS_RSA_WITH_AES_256_CBC_SHA" },
351 { 0x0036, "TLS_DH_DSS_WITH_AES_256_CBC_SHA" },
352 { 0x0037, "TLS_DH_RSA_WITH_AES_256_CBC_SHA" },
353 { 0x0038, "TLS_DHE_DSS_WITH_AES_256_CBC_SHA" },
354 { 0x0039, "TLS_DHE_RSA_WITH_AES_256_CBC_SHA" },
355 { 0x003A, "TLS_DH_anon_WITH_AES_256_CBC_SHA" },
358 { 0x0060, "TLS_RSA_EXPORT1024_WITH_RC4_56_MD5" },
359 { 0x0061, "TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5" },
361 /* draft-ietf-tls-56-bit-ciphersuites-01.txt */
362 { 0x0062, "TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA" },
363 { 0x0063, "TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA" },
364 { 0x0064, "TLS_RSA_EXPORT1024_WITH_RC4_56_SHA" },
365 { 0x0065, "TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA" },
366 { 0x0066, "TLS_DHE_DSS_WITH_RC4_128_SHA" },
369 { 0x0041, "TLS_RSA_WITH_CAMELLIA_128_CBC_SHA" },
370 { 0x0042, "TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA" },
371 { 0x0043, "TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA" },
372 { 0x0044, "TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA" },
373 { 0x0045, "TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA" },
374 { 0x0046, "TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA" },
375 { 0x0084, "TLS_RSA_WITH_CAMELLIA_256_CBC_SHA" },
376 { 0x0085, "TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA" },
377 { 0x0086, "TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA" },
378 { 0x0087, "TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA" },
379 { 0x0088, "TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA" },
380 { 0x0089, "TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA" },
383 { 0x008A, "TLS_PSK_WITH_RC4_128_SHA" },
384 { 0x008B, "TLS_PSK_WITH_3DES_EDE_CBC_SHA" },
385 { 0x008C, "TLS_PSK_WITH_AES_128_CBC_SHA" },
386 { 0x008D, "TLS_PSK_WITH_AES_256_CBC_SHA" },
387 { 0x008E, "TLS_DHE_PSK_WITH_RC4_128_SHA" },
388 { 0x008F, "TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA" },
389 { 0x0090, "TLS_DHE_PSK_WITH_AES_128_CBC_SHA" },
390 { 0x0091, "TLS_DHE_PSK_WITH_AES_256_CBC_SHA" },
391 { 0x0092, "TLS_RSA_PSK_WITH_RC4_128_SHA" },
392 { 0x0093, "TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA" },
393 { 0x0094, "TLS_RSA_PSK_WITH_AES_128_CBC_SHA" },
394 { 0x0095, "TLS_RSA_PSK_WITH_AES_256_CBC_SHA" },
397 { 0x0096, "TLS_RSA_WITH_SEED_CBC_SHA" },
398 { 0x0097, "TLS_DH_DSS_WITH_SEED_CBC_SHA" },
399 { 0x0098, "TLS_DH_RSA_WITH_SEED_CBC_SHA" },
400 { 0x0099, "TLS_DHE_DSS_WITH_SEED_CBC_SHA" },
401 { 0x009A, "TLS_DHE_RSA_WITH_SEED_CBC_SHA" },
402 { 0x009B, "TLS_DH_anon_WITH_SEED_CBC_SHA" },
405 { 0xc001, "TLS_ECDH_ECDSA_WITH_NULL_SHA" },
406 { 0xc002, "TLS_ECDH_ECDSA_WITH_RC4_128_SHA" },
407 { 0xc003, "TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA" },
408 { 0xc004, "TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA" },
409 { 0xc005, "TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA" },
410 { 0xc006, "TLS_ECDHE_ECDSA_WITH_NULL_SHA" },
411 { 0xc007, "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA" },
412 { 0xc008, "TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA" },
413 { 0xc009, "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA" },
414 { 0xc00a, "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA" },
415 { 0xc00b, "TLS_ECDH_RSA_WITH_NULL_SHA" },
416 { 0xc00c, "TLS_ECDH_RSA_WITH_RC4_128_SHA" },
417 { 0xc00d, "TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA" },
418 { 0xc00e, "TLS_ECDH_RSA_WITH_AES_128_CBC_SHA" },
419 { 0xc00f, "TLS_ECDH_RSA_WITH_AES_256_CBC_SHA" },
420 { 0xc010, "TLS_ECDHE_RSA_WITH_NULL_SHA" },
421 { 0xc011, "TLS_ECDHE_RSA_WITH_RC4_128_SHA" },
422 { 0xc012, "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA" },
423 { 0xc013, "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA" },
424 { 0xc014, "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA" },
425 { 0xc015, "TLS_ECDH_anon_WITH_NULL_SHA" },
426 { 0xc016, "TLS_ECDH_anon_WITH_RC4_128_SHA" },
427 { 0xc017, "TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA" },
428 { 0xc018, "TLS_ECDH_anon_WITH_AES_128_CBC_SHA" },
429 { 0xc019, "TLS_ECDH_anon_WITH_AES_256_CBC_SHA" },
431 /* draft-ietf-tls-srp-14.txt */
432 { 0xC01A, "TLS_SRP_SHA_WITH_3DES_EDE_CBC_SHA" },
433 { 0xC01B, "TLS_SRP_SHA_RSA_WITH_3DES_EDE_CBC_SHA" },
434 { 0xC01C, "TLS_SRP_SHA_DSS_WITH_3DES_EDE_CBC_SHA" },
435 { 0xC01D, "TLS_SRP_SHA_WITH_AES_128_CBC_SHA" },
436 { 0xC01E, "TLS_SRP_SHA_RSA_WITH_AES_128_CBC_SHA" },
437 { 0xC01F, "TLS_SRP_SHA_DSS_WITH_AES_128_CBC_SHA" },
438 { 0xC020, "TLS_SRP_SHA_WITH_AES_256_CBC_SHA" },
439 { 0xC021, "TLS_SRP_SHA_RSA_WITH_AES_256_CBC_SHA" },
440 { 0xC022, "TLS_SRP_SHA_DSS_WITH_AES_256_CBC_SHA" },
442 /* these from http://www.mozilla.org/projects/
443 security/pki/nss/ssl/fips-ssl-ciphersuites.html */
444 { 0xfefe, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
445 { 0xfeff, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
446 { 0xffe0, "SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA" },
447 { 0xffe1, "SSL_RSA_FIPS_WITH_DES_CBC_SHA"},
448 /* note that ciphersuites 0xff00 - 0xffff are private */
452 const value_string pct_msg_types[] = {
453 { PCT_MSG_CLIENT_HELLO, "Client Hello" },
454 { PCT_MSG_SERVER_HELLO, "Server Hello" },
455 { PCT_MSG_CLIENT_MASTER_KEY, "Client Master Key" },
456 { PCT_MSG_SERVER_VERIFY, "Server Verify" },
457 { PCT_MSG_ERROR, "Error" },
461 const value_string pct_cipher_type[] = {
462 { PCT_CIPHER_DES, "DES" },
463 { PCT_CIPHER_IDEA, "IDEA" },
464 { PCT_CIPHER_RC2, "RC2" },
465 { PCT_CIPHER_RC4, "RC4" },
466 { PCT_CIPHER_DES_112, "DES 112 bit" },
467 { PCT_CIPHER_DES_168, "DES 168 bit" },
471 const value_string pct_hash_type[] = {
472 { PCT_HASH_MD5, "MD5" },
473 { PCT_HASH_MD5_TRUNC_64, "MD5_TRUNC_64"},
474 { PCT_HASH_SHA, "SHA"},
475 { PCT_HASH_SHA_TRUNC_80, "SHA_TRUNC_80"},
476 { PCT_HASH_DES_DM, "DES_DM"},
480 const value_string pct_cert_type[] = {
481 { PCT_CERT_NONE, "None" },
482 { PCT_CERT_X509, "X.509" },
483 { PCT_CERT_PKCS7, "PKCS #7" },
486 const value_string pct_sig_type[] = {
487 { PCT_SIG_NONE, "None" },
488 { PCT_SIG_RSA_MD5, "MD5" },
489 { PCT_SIG_RSA_SHA, "RSA SHA" },
490 { PCT_SIG_DSA_SHA, "DSA SHA" },
494 const value_string pct_exch_type[] = {
495 { PCT_EXCH_RSA_PKCS1, "RSA PKCS#1" },
496 { PCT_EXCH_RSA_PKCS1_TOKEN_DES, "RSA PKCS#1 Token DES" },
497 { PCT_EXCH_RSA_PKCS1_TOKEN_DES3, "RSA PKCS#1 Token 3DES" },
498 { PCT_EXCH_RSA_PKCS1_TOKEN_RC2, "RSA PKCS#1 Token RC-2" },
499 { PCT_EXCH_RSA_PKCS1_TOKEN_RC4, "RSA PKCS#1 Token RC-4" },
500 { PCT_EXCH_DH_PKCS3, "DH PKCS#3" },
501 { PCT_EXCH_DH_PKCS3_TOKEN_DES, "DH PKCS#3 Token DES" },
502 { PCT_EXCH_DH_PKCS3_TOKEN_DES3, "DH PKCS#3 Token 3DES" },
503 { PCT_EXCH_FORTEZZA_TOKEN, "Fortezza" },
507 const value_string pct_error_code[] = {
508 { PCT_ERR_BAD_CERTIFICATE, "PCT_ERR_BAD_CERTIFICATE" },
509 { PCT_ERR_CLIENT_AUTH_FAILED, "PCT_ERR_CLIENT_AUTH_FAILE" },
510 { PCT_ERR_ILLEGAL_MESSAGE, "PCT_ERR_ILLEGAL_MESSAGE" },
511 { PCT_ERR_INTEGRITY_CHECK_FAILED, "PCT_ERR_INTEGRITY_CHECK_FAILED" },
512 { PCT_ERR_SERVER_AUTH_FAILED, "PCT_ERR_SERVER_AUTH_FAILED" },
513 { PCT_ERR_SPECS_MISMATCH, "PCT_ERR_SPECS_MISMATCH" },
518 const value_string tls_hello_extension_types[] = {
519 { 0, "server_name" },
520 { 1, "max_fragment_length" },
521 { 2, "client_certificate_url" },
522 { 3, "trusted_ca_keys" },
523 { 4, "truncated_hmac" },
524 { 5, "status_request" },
525 { 6, "user_mapping" },
529 { 10, "elliptic_curves" },
530 { 11, "ec_point_formats" },
531 { 35, "SessionTicket TLS" },
536 /* we keep this internal to packet-ssl-utils, as there should be
537 no need to access it any other way.
539 This also allows us to hide the dependency on zlib.
541 struct _SslDecompress {
549 ssl_data_alloc(StringInfo* str, guint len)
551 str->data = g_malloc(len);
559 ssl_data_set(StringInfo* str, const guchar* data, guint len)
561 memcpy(str->data, data, len);
565 #ifdef HAVE_LIBGNUTLS
567 static gint ver_major, ver_minor, ver_patch;
569 /* hmac abstraction layer */
570 #define SSL_HMAC gcry_md_hd_t
573 ssl_hmac_init(SSL_HMAC* md, const void * key, gint len, gint algo)
575 gcry_md_open(md,algo, GCRY_MD_FLAG_HMAC);
576 gcry_md_setkey (*(md), key, len);
579 ssl_hmac_update(SSL_HMAC* md, const void* data, gint len)
581 gcry_md_write(*(md), data, len);
584 ssl_hmac_final(SSL_HMAC* md, guchar* data, guint* datalen)
588 algo = gcry_md_get_algo (*(md));
589 len = gcry_md_get_algo_dlen(algo);
590 memcpy(data, gcry_md_read(*(md), algo), len);
594 ssl_hmac_cleanup(SSL_HMAC* md)
596 gcry_md_close(*(md));
599 /* memory digest abstraction layer*/
600 #define SSL_MD gcry_md_hd_t
603 ssl_md_init(SSL_MD* md, gint algo)
605 gcry_md_open(md,algo, 0);
608 ssl_md_update(SSL_MD* md, guchar* data, gint len)
610 gcry_md_write(*(md), data, len);
613 ssl_md_final(SSL_MD* md, guchar* data, guint* datalen)
617 algo = gcry_md_get_algo (*(md));
618 len = gcry_md_get_algo_dlen (algo);
619 memcpy(data, gcry_md_read(*(md), algo), len);
623 ssl_md_cleanup(SSL_MD* md)
625 gcry_md_close(*(md));
628 /* md5 /sha abstraction layer */
629 #define SSL_SHA_CTX gcry_md_hd_t
630 #define SSL_MD5_CTX gcry_md_hd_t
633 ssl_sha_init(SSL_SHA_CTX* md)
635 gcry_md_open(md,GCRY_MD_SHA1, 0);
638 ssl_sha_update(SSL_SHA_CTX* md, guchar* data, gint len)
640 gcry_md_write(*(md), data, len);
643 ssl_sha_final(guchar* buf, SSL_SHA_CTX* md)
645 memcpy(buf, gcry_md_read(*(md), GCRY_MD_SHA1),
646 gcry_md_get_algo_dlen(GCRY_MD_SHA1));
649 ssl_sha_cleanup(SSL_SHA_CTX* md)
651 gcry_md_close(*(md));
655 ssl_md5_init(SSL_MD5_CTX* md)
657 return gcry_md_open(md,GCRY_MD_MD5, 0);
660 ssl_md5_update(SSL_MD5_CTX* md, guchar* data, gint len)
662 gcry_md_write(*(md), data, len);
665 ssl_md5_final(guchar* buf, SSL_MD5_CTX* md)
667 memcpy(buf, gcry_md_read(*(md), GCRY_MD_MD5),
668 gcry_md_get_algo_dlen(GCRY_MD_MD5));
671 ssl_md5_cleanup(SSL_MD5_CTX* md)
673 gcry_md_close(*(md));
677 ssl_cipher_setiv(SSL_CIPHER_CTX *cipher, guchar* iv, gint iv_len)
684 c=(gcry_cipher_hd_t)*cipher;
686 ssl_debug_printf("--------------------------------------------------------------------");
687 /*for(ivp=c->iv,i=0; i < iv_len; i++ )
689 ssl_debug_printf("%d ",ivp[i]);
693 ssl_debug_printf("--------------------------------------------------------------------");
694 ret = gcry_cipher_setiv(*(cipher), iv, iv_len);
695 /*for(ivp=c->iv,i=0; i < iv_len; i++ )
697 ssl_debug_printf("%d ",ivp[i]);
701 ssl_debug_printf("--------------------------------------------------------------------");
704 /* stream cipher abstraction layer*/
706 ssl_cipher_init(gcry_cipher_hd_t *cipher, gint algo, guchar* sk,
707 guchar* iv, gint mode)
709 gint gcry_modes[]={GCRY_CIPHER_MODE_STREAM,GCRY_CIPHER_MODE_CBC};
711 err = gcry_cipher_open(cipher, algo, gcry_modes[mode], 0);
714 err = gcry_cipher_setkey(*(cipher), sk, gcry_cipher_get_algo_keylen (algo));
717 err = gcry_cipher_setiv(*(cipher), iv, gcry_cipher_get_algo_blklen (algo));
723 ssl_cipher_decrypt(gcry_cipher_hd_t *cipher, guchar * out, gint outl,
724 const guchar * in, gint inl)
726 return gcry_cipher_decrypt ( *(cipher), out, outl, in, inl);
729 ssl_get_digest_by_name(const gchar*name)
731 return gcry_md_map_name(name);
734 ssl_get_cipher_by_name(const gchar* name)
736 return gcry_cipher_map_name(name);
740 ssl_cipher_cleanup(gcry_cipher_hd_t *cipher)
742 gcry_cipher_close(*cipher);
746 /* private key abstraction layer */
748 ssl_get_key_len(SSL_PRIVATE_KEY* pk) {return gcry_pk_get_nbits (pk); }
751 _gcry_rsa_decrypt (int algo, gcry_mpi_t *result, gcry_mpi_t *data,
752 gcry_mpi_t *skey, gint flags);
754 #define PUBKEY_FLAG_NO_BLINDING (1 << 0)
756 /* decrypt data with private key. Store decrypted data directly into input
759 ssl_private_decrypt(guint len, guchar* encr_data, SSL_PRIVATE_KEY* pk)
763 gcry_sexp_t s_data, s_plain;
766 guchar* decr_data_ptr;
771 /* build up a mpi rappresentation for encrypted data */
772 rc = gcry_mpi_scan(&encr_mpi, GCRYMPI_FMT_USG,encr_data, encr_len, &encr_len);
774 ssl_debug_printf("pcry_private_decrypt: can't convert encr_data to mpi (size %d):%s\n",
775 len, gcry_strerror(rc));
780 /* put the data into a simple list */
781 rc = gcry_sexp_build(&s_data, NULL, "(enc-val(rsa(a%m)))", encr_mpi);
783 ssl_debug_printf("pcry_private_decrypt: can't build encr_sexp:%s \n",
788 /* pass it to libgcrypt */
789 rc = gcry_pk_decrypt(&s_plain, s_data, pk);
790 gcry_sexp_release(s_data);
793 ssl_debug_printf("pcry_private_decrypt: can't decrypt key:%s\n",
798 /* convert plain text sexp to mpi format */
799 text = gcry_sexp_nth_mpi(s_plain, 0, 0);
801 /* compute size requested for plaintext buffer */
803 if (gcry_mpi_print(GCRYMPI_FMT_USG, NULL, decr_len, &decr_len, text) != 0) {
804 ssl_debug_printf("pcry_private_decrypt: can't compute decr size:%s\n",
810 /* sanity check on out buffer */
811 if (decr_len > len) {
812 ssl_debug_printf("pcry_private_decrypt: decrypted data is too long ?!? (%zd max %d)\n",
817 /* write plain text to encrypted data buffer */
818 decr_data_ptr = encr_data;
819 if (gcry_mpi_print( GCRYMPI_FMT_USG, decr_data_ptr, decr_len, &decr_len,
821 ssl_debug_printf("pcry_private_decrypt: can't print decr data to mpi (size %zd):%s\n",
822 decr_len, gcry_strerror(rc));
823 g_free(decr_data_ptr);
828 /* strip the padding*/
830 for (i = 1; i < decr_len; i++) {
831 if (decr_data_ptr[i] == 0) {
837 ssl_debug_printf("pcry_private_decrypt: stripping %d bytes, decr_len %zd\n",
839 ssl_print_data("decrypted_unstrip_pre_master", decr_data_ptr, decr_len);
840 g_memmove(decr_data_ptr, &decr_data_ptr[rc], decr_len - rc);
844 gcry_sexp_release(s_plain);
846 rc = _gcry_rsa_decrypt(0, &text, &encr_mpi, pk,0);
847 gcry_mpi_print( GCRYMPI_FMT_USG, 0, 0, &decr_len, text);
849 /* sanity check on out buffer */
850 if (decr_len > len) {
851 ssl_debug_printf("pcry_private_decrypt: decrypted data is too long ?!? (%d max %d)\n",
856 /* write plain text to newly allocated buffer */
857 decr_data_ptr = encr_data;
858 if (gcry_mpi_print( GCRYMPI_FMT_USG, decr_data_ptr, decr_len, &decr_len,
860 ssl_debug_printf("pcry_private_decrypt: can't print decr data to mpi (size %d):%s\n",
861 decr_len, gcry_strerror(rc));
865 /* strip the padding*/
867 for (i = 1; i < decr_len; i++) {
868 if (decr_data_ptr[i] == 0) {
874 ssl_debug_printf("pcry_private_decrypt: stripping %d bytes, decr_len %d\n",
876 ssl_print_data("decrypted_unstrip_pre_master", decr_data_ptr, decr_len);
877 g_memmove(decr_data_ptr, &decr_data_ptr[rc], decr_len - rc);
879 #endif /* SSL_FAST */
880 gcry_mpi_release(text);
884 /* stringinfo interface */
886 ssl_data_realloc(StringInfo* str, guint len)
888 str->data = g_realloc(str->data, len);
896 ssl_data_copy(StringInfo* dst, StringInfo* src)
898 if (dst->data_len < src->data_len) {
899 if (ssl_data_realloc(dst, src->data_len))
902 memcpy(dst->data, src->data, src->data_len);
903 dst->data_len = src->data_len;
907 #define PRF(ssl,secret,usage,rnd1,rnd2,out) ((ssl->version_netorder==SSLV3_VERSION)? \
908 ssl3_prf(secret,usage,rnd1,rnd2,out): \
909 tls_prf(secret,usage,rnd1,rnd2,out))
911 static const gchar *digests[]={
916 static const gchar *ciphers[]={
919 "ARCFOUR", /* gnutls does not support rc4, but this should be 100% compatible*/
927 /* look in openssl/ssl/ssl_lib.c for a complete list of available cipersuite*/
928 static SslCipherSuite cipher_suites[]={
929 {1,KEX_RSA,SIG_RSA,ENC_NULL,0,0,0,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM},
930 {2,KEX_RSA,SIG_RSA,ENC_NULL,0,0,0,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
931 {3,KEX_RSA,SIG_RSA,ENC_RC4,1,128,40,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM},
932 {4,KEX_RSA,SIG_RSA,ENC_RC4,1,128,128,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM},
933 {5,KEX_RSA,SIG_RSA,ENC_RC4,1,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
934 {6,KEX_RSA,SIG_RSA,ENC_RC2,8,128,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
935 {7,KEX_RSA,SIG_RSA,ENC_IDEA,8,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
936 {8,KEX_RSA,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_CBC},
937 {9,KEX_RSA,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC},
938 {10,KEX_RSA,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC},
939 {11,KEX_DH,SIG_DSS,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
940 {12,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
941 {13,KEX_DH,SIG_DSS,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
942 {14,KEX_DH,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
943 {15,KEX_DH,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
944 {16,KEX_DH,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
945 {17,KEX_DH,SIG_DSS,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
946 {18,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
947 {19,KEX_DH,SIG_DSS,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
948 {20,KEX_DH,SIG_RSA,ENC_DES,8,64,40,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
949 {21,KEX_DH,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
950 {22,KEX_DH,SIG_RSA,ENC_3DES,8,192,192,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
951 {23,KEX_DH,SIG_NONE,ENC_RC4,1,128,40,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM},
952 {24,KEX_DH,SIG_NONE,ENC_RC4,1,128,128,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM},
953 {25,KEX_DH,SIG_NONE,ENC_DES,8,64,40,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM},
954 {26,KEX_DH,SIG_NONE,ENC_DES,8,64,64,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM},
955 {27,KEX_DH,SIG_NONE,ENC_3DES,8,192,192,DIG_MD5,16,0, SSL_CIPHER_MODE_STREAM},
956 {47,KEX_RSA,SIG_RSA,ENC_AES,16,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC},
957 {53,KEX_RSA,SIG_RSA,ENC_AES256,16,256,256,DIG_SHA,20,0, SSL_CIPHER_MODE_CBC},
958 {96,KEX_RSA,SIG_RSA,ENC_RC4,1,128,56,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM},
959 {97,KEX_RSA,SIG_RSA,ENC_RC2,1,128,56,DIG_MD5,16,1, SSL_CIPHER_MODE_STREAM},
960 {98,KEX_RSA,SIG_RSA,ENC_DES,8,64,64,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
961 {99,KEX_DH,SIG_DSS,ENC_DES,8,64,64,DIG_SHA,16,1, SSL_CIPHER_MODE_STREAM},
962 {100,KEX_RSA,SIG_RSA,ENC_RC4,1,128,56,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
963 {101,KEX_DH,SIG_DSS,ENC_RC4,1,128,56,DIG_SHA,20,1, SSL_CIPHER_MODE_STREAM},
964 {102,KEX_DH,SIG_DSS,ENC_RC4,1,128,128,DIG_SHA,20,0, SSL_CIPHER_MODE_STREAM},
965 {-1, 0,0,0,0,0,0,0,0,0, 0}
968 #define MAX_BLOCK_SIZE 16
969 #define MAX_KEY_SIZE 32
972 ssl_find_cipher(int num,SslCipherSuite* cs)
976 for(c=cipher_suites;c->number!=-1;c++){
987 tls_hash(StringInfo* secret,
988 StringInfo* seed, gint md, StringInfo* out)
994 guint8 _A[20],tmp[20];
1001 ssl_print_string("tls_hash: hash secret", secret);
1002 ssl_print_string("tls_hash: hash seed", seed);
1007 ssl_hmac_init(&hm,secret->data,secret->data_len,md);
1008 ssl_hmac_update(&hm,A,A_l);
1009 ssl_hmac_final(&hm,_A,&A_l);
1010 ssl_hmac_cleanup(&hm);
1013 ssl_hmac_init(&hm,secret->data,secret->data_len,md);
1014 ssl_hmac_update(&hm,A,A_l);
1015 ssl_hmac_update(&hm,seed->data,seed->data_len);
1016 ssl_hmac_final(&hm,tmp,&tmp_l);
1017 ssl_hmac_cleanup(&hm);
1019 tocpy=MIN(left,tmp_l);
1020 memcpy(ptr,tmp,tocpy);
1025 ssl_print_string("hash out", out);
1030 tls_prf(StringInfo* secret, const gchar *usage,
1031 StringInfo* rnd1, StringInfo* rnd2, StringInfo* out)
1033 StringInfo seed, sha_out, md5_out;
1039 usage_len = strlen(usage);
1041 /* initalize buffer for sha, md5 random seed*/
1042 if (ssl_data_alloc(&sha_out, MAX(out->data_len,20)) < 0)
1044 if (ssl_data_alloc(&md5_out, MAX(out->data_len,16)) < 0)
1046 if (ssl_data_alloc(&seed, usage_len+rnd1->data_len+rnd2->data_len) < 0)
1050 memcpy(ptr,usage,usage_len); ptr+=usage_len;
1051 memcpy(ptr,rnd1->data,rnd1->data_len); ptr+=rnd1->data_len;
1052 memcpy(ptr,rnd2->data,rnd2->data_len); ptr+=rnd2->data_len;
1054 /* initalize buffer for client/server seeds*/
1055 s_l=secret->data_len/2 + secret->data_len%2;
1056 if (ssl_data_alloc(&s1, s_l) < 0)
1058 if (ssl_data_alloc(&s2, s_l) < 0)
1061 memcpy(s1.data,secret->data,s_l);
1062 memcpy(s2.data,secret->data + (secret->data_len - s_l),s_l);
1064 ssl_debug_printf("tls_prf: tls_hash(md5 secret_len %d seed_len %d )\n", s1.data_len, seed.data_len);
1065 if(tls_hash(&s1,&seed,ssl_get_digest_by_name("MD5"),&md5_out) != 0)
1067 ssl_debug_printf("tls_prf: tls_hash(sha)\n");
1068 if(tls_hash(&s2,&seed,ssl_get_digest_by_name("SHA1"),&sha_out) != 0)
1071 for(i=0;i<out->data_len;i++)
1072 out->data[i]=md5_out.data[i] ^ sha_out.data[i];
1075 ssl_print_string("PRF out",out);
1083 g_free(md5_out.data);
1085 g_free(sha_out.data);
1090 ssl3_generate_export_iv(StringInfo* r1,
1091 StringInfo* r2, StringInfo* out)
1097 ssl_md5_update(&md5,r1->data,r1->data_len);
1098 ssl_md5_update(&md5,r2->data,r2->data_len);
1099 ssl_md5_final(tmp,&md5);
1100 ssl_md5_cleanup(&md5);
1102 memcpy(out->data,tmp,out->data_len);
1103 ssl_print_string("export iv", out);
1109 ssl3_prf(StringInfo* secret, const gchar* usage,
1111 StringInfo* r2,StringInfo* out)
1115 StringInfo *rnd1,*rnd2;
1122 for(off=0;off<out->data_len;off+=16){
1127 ssl_debug_printf("ssl3_prf: sha1_hash(%d)\n",i);
1128 /* A, BB, CCC, ... */
1134 ssl_sha_update(&sha,buf,i);
1135 ssl_sha_update(&sha,secret->data,secret->data_len);
1137 if(!strcmp(usage,"client write key") || !strcmp(usage,"server write key")){
1138 ssl_sha_update(&sha,rnd2->data,rnd2->data_len);
1139 ssl_sha_update(&sha,rnd1->data,rnd1->data_len);
1142 ssl_sha_update(&sha,rnd1->data,rnd1->data_len);
1143 ssl_sha_update(&sha,rnd2->data,rnd2->data_len);
1146 ssl_sha_final(buf,&sha);
1147 ssl_sha_cleanup(&sha);
1149 ssl_debug_printf("ssl3_prf: md5_hash(%d) datalen %d\n",i,
1152 ssl_md5_update(&md5,secret->data,secret->data_len);
1153 ssl_md5_update(&md5,buf,20);
1154 ssl_md5_final(outbuf,&md5);
1155 ssl_md5_cleanup(&md5);
1157 tocpy=MIN(out->data_len-off,16);
1158 memcpy(out->data+off,outbuf,tocpy);
1165 ssl_create_flow(void)
1169 flow = se_alloc(sizeof(SslFlow));
1172 flow->multisegment_pdus = se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK, "ssl_multisegment_pdus");
1176 /* memory allocations functions for zlib intialization */
1177 static void* ssl_zalloc(void* opaque _U_, unsigned int no, unsigned int size)
1179 return g_malloc0(no*size);
1181 static void ssl_zfree(void* opaque _U_, void* address)
1186 static SslDecompress*
1187 ssl_create_decompressor(gint compression)
1189 SslDecompress *decomp;
1194 if (compression == 0) return NULL;
1195 ssl_debug_printf("ssl_create_decompressor: compression method %d\n", compression);
1196 decomp = se_alloc(sizeof(SslDecompress));
1197 decomp->compression = compression;
1198 switch (decomp->compression) {
1200 case 1: /* DEFLATE */
1201 decomp->istream.zalloc = ssl_zalloc;
1202 decomp->istream.zfree = ssl_zfree;
1203 decomp->istream.opaque = Z_NULL;
1204 decomp->istream.next_in = Z_NULL;
1205 decomp->istream.next_out = Z_NULL;
1206 decomp->istream.avail_in = 0;
1207 decomp->istream.avail_out = 0;
1208 err = inflateInit_(&decomp->istream, ZLIB_VERSION, sizeof(z_stream));
1210 ssl_debug_printf("ssl_create_decompressor: inflateInit_() failed - %d\n", err);
1216 ssl_debug_printf("ssl_create_decompressor: unsupported compression method %d\n", decomp->compression);
1223 ssl_create_decoder(SslCipherSuite *cipher_suite, gint compression,
1224 guint8 *mk, guint8 *sk, guint8 *iv)
1230 dec = se_alloc0(sizeof(SslDecoder));
1231 /* Find the SSLeay cipher */
1232 if(cipher_suite->enc!=ENC_NULL) {
1233 ssl_debug_printf("ssl_create_decoder CIPHER: %s\n", ciphers[cipher_suite->enc-0x30]);
1234 ciph=ssl_get_cipher_by_name(ciphers[cipher_suite->enc-0x30]);
1237 ssl_debug_printf("ssl_create_decoder can't find cipher %s\n",
1238 ciphers[(cipher_suite->enc-0x30) > 7 ? 7 : (cipher_suite->enc-0x30)]);
1242 /* init mac buffer: mac storage is embedded into decoder struct to save a
1243 memory allocation and waste samo more memory*/
1244 dec->cipher_suite=cipher_suite;
1245 dec->compression = compression;
1246 dec->mac_key.data = dec->_mac_key;
1247 ssl_data_set(&dec->mac_key, mk, cipher_suite->dig_len);
1249 dec->decomp = ssl_create_decompressor(compression);
1250 dec->flow = ssl_create_flow();
1253 ssl_cipher_cleanup(&dec->evp);
1255 if (ssl_cipher_init(&dec->evp,ciph,sk,iv,cipher_suite->mode) < 0) {
1256 ssl_debug_printf("ssl_create_decoder: can't create cipher id:%d mode:%d\n",
1257 ciph, cipher_suite->mode);
1261 ssl_debug_printf("decoder initialized (digest len %d)\n", cipher_suite->dig_len);
1266 ssl_generate_keyring_material(SslDecryptSession*ssl_session)
1268 StringInfo key_block;
1269 guint8 _iv_c[MAX_BLOCK_SIZE],_iv_s[MAX_BLOCK_SIZE];
1270 guint8 _key_c[MAX_KEY_SIZE],_key_s[MAX_KEY_SIZE];
1272 guint8 *ptr,*c_wk,*s_wk,*c_mk,*s_mk,*c_iv = _iv_c,*s_iv = _iv_s;
1274 /* if master_key is not yet generate, create it now*/
1275 if (!(ssl_session->state & SSL_MASTER_SECRET)) {
1276 ssl_debug_printf("ssl_generate_keyring_material:PRF(pre_master_secret)\n");
1277 if (PRF(ssl_session,&ssl_session->pre_master_secret,"master secret",
1278 &ssl_session->client_random,
1279 &ssl_session->server_random, &ssl_session->master_secret)) {
1280 ssl_debug_printf("ssl_generate_keyring_material can't generate master_secret\n");
1283 ssl_print_string("master secret",&ssl_session->master_secret);
1286 /* Compute the key block. First figure out how much data we need*/
1287 needed=ssl_session->cipher_suite.dig_len*2;
1288 needed+=ssl_session->cipher_suite.bits / 4;
1289 if(ssl_session->cipher_suite.block>1)
1290 needed+=ssl_session->cipher_suite.block*2;
1292 key_block.data_len = needed;
1293 key_block.data = g_malloc(needed);
1294 if (!key_block.data) {
1295 ssl_debug_printf("ssl_generate_keyring_material can't allacate key_block\n");
1298 ssl_debug_printf("ssl_generate_keyring_material sess key generation\n");
1299 if (PRF(ssl_session,&ssl_session->master_secret,"key expansion",
1300 &ssl_session->server_random,&ssl_session->client_random,
1302 ssl_debug_printf("ssl_generate_keyring_material can't generate key_block\n");
1305 ssl_print_string("key expansion", &key_block);
1308 c_mk=ptr; ptr+=ssl_session->cipher_suite.dig_len;
1309 s_mk=ptr; ptr+=ssl_session->cipher_suite.dig_len;
1311 c_wk=ptr; ptr+=ssl_session->cipher_suite.eff_bits/8;
1312 s_wk=ptr; ptr+=ssl_session->cipher_suite.eff_bits/8;
1314 if(ssl_session->cipher_suite.block>1){
1315 c_iv=ptr; ptr+=ssl_session->cipher_suite.block;
1316 s_iv=ptr; ptr+=ssl_session->cipher_suite.block;
1319 if(ssl_session->cipher_suite.export){
1320 StringInfo iv_c,iv_s;
1321 StringInfo key_c,key_s;
1324 if(ssl_session->cipher_suite.block>1){
1326 /* We only have room for MAX_BLOCK_SIZE bytes IVs, but that's
1327 all we should need. This is a sanity check */
1328 if(ssl_session->cipher_suite.block>MAX_BLOCK_SIZE) {
1329 ssl_debug_printf("ssl_generate_keyring_material cipher suite block must be at most %d nut is %d\n",
1330 MAX_BLOCK_SIZE, ssl_session->cipher_suite.block);
1335 iv_c.data_len = ssl_session->cipher_suite.block;
1337 iv_s.data_len = ssl_session->cipher_suite.block;
1339 if(ssl_session->version_netorder==SSLV3_VERSION){
1340 ssl_debug_printf("ssl_generate_keyring_material ssl3_generate_export_iv\n");
1341 if (ssl3_generate_export_iv(&ssl_session->client_random,
1342 &ssl_session->server_random,&iv_c)) {
1343 ssl_debug_printf("ssl_generate_keyring_material can't generate sslv3 client iv\n");
1346 ssl_debug_printf("ssl_generate_keyring_material ssl3_generate_export_iv(2)\n");
1347 if (ssl3_generate_export_iv(&ssl_session->server_random,
1348 &ssl_session->client_random,&iv_s)) {
1349 ssl_debug_printf("ssl_generate_keyring_material can't generate sslv3 server iv\n");
1354 guint8 _iv_block[MAX_BLOCK_SIZE * 2];
1355 StringInfo iv_block;
1356 StringInfo key_null;
1359 key_null.data = &_key_null;
1360 key_null.data_len = 0;
1362 iv_block.data = _iv_block;
1363 iv_block.data_len = ssl_session->cipher_suite.block*2;
1365 ssl_debug_printf("ssl_generate_keyring_material prf(iv_block)\n");
1366 if(PRF(ssl_session,&key_null, "IV block",
1367 &ssl_session->client_random,
1368 &ssl_session->server_random,&iv_block)) {
1369 ssl_debug_printf("ssl_generate_keyring_material can't generate tls31 iv block\n");
1373 memcpy(_iv_c,iv_block.data,ssl_session->cipher_suite.block);
1374 memcpy(_iv_s,iv_block.data+ssl_session->cipher_suite.block,
1375 ssl_session->cipher_suite.block);
1382 if (ssl_session->version_netorder==SSLV3_VERSION){
1385 ssl_debug_printf("ssl_generate_keyring_material MD5(client_random)\n");
1388 ssl_md5_update(&md5,c_wk,ssl_session->cipher_suite.eff_bits/8);
1389 ssl_md5_update(&md5,ssl_session->client_random.data,
1390 ssl_session->client_random.data_len);
1391 ssl_md5_update(&md5,ssl_session->server_random.data,
1392 ssl_session->server_random.data_len);
1393 ssl_md5_final(_key_c,&md5);
1394 ssl_md5_cleanup(&md5);
1398 ssl_debug_printf("ssl_generate_keyring_material MD5(server_random)\n");
1399 ssl_md5_update(&md5,s_wk,ssl_session->cipher_suite.eff_bits/8);
1400 ssl_md5_update(&md5,ssl_session->server_random.data,
1401 ssl_session->server_random.data_len);
1402 ssl_md5_update(&md5,ssl_session->client_random.data,
1403 ssl_session->client_random.data_len);
1404 ssl_md5_final(_key_s,&md5);
1405 ssl_md5_cleanup(&md5);
1409 key_c.data = _key_c;
1410 key_c.data_len = sizeof(_key_c);
1411 key_s.data = _key_s;
1412 key_s.data_len = sizeof(_key_s);
1415 k.data_len = ssl_session->cipher_suite.eff_bits/8;
1416 ssl_debug_printf("ssl_generate_keyring_material PRF(key_c)\n");
1417 if (PRF(ssl_session,&k,"client write key",
1418 &ssl_session->client_random,
1419 &ssl_session->server_random, &key_c)) {
1420 ssl_debug_printf("ssl_generate_keyring_material can't generate tll31 server key \n");
1426 k.data_len = ssl_session->cipher_suite.eff_bits/8;
1427 ssl_debug_printf("ssl_generate_keyring_material PRF(key_s)\n");
1428 if(PRF(ssl_session,&k,"server write key",
1429 &ssl_session->client_random,
1430 &ssl_session->server_random, &key_s)) {
1431 ssl_debug_printf("ssl_generate_keyring_material can't generate tll31 client key \n");
1438 /* show key material info */
1439 ssl_print_data("Client MAC key",c_mk,ssl_session->cipher_suite.dig_len);
1440 ssl_print_data("Server MAC key",s_mk,ssl_session->cipher_suite.dig_len);
1441 ssl_print_data("Client Write key",c_wk,ssl_session->cipher_suite.bits/8);
1442 ssl_print_data("Server Write key",s_wk,ssl_session->cipher_suite.bits/8);
1444 if(ssl_session->cipher_suite.block>1) {
1445 ssl_print_data("Client Write IV",c_iv,ssl_session->cipher_suite.block);
1446 ssl_print_data("Server Write IV",s_iv,ssl_session->cipher_suite.block);
1449 ssl_print_data("Client Write IV",c_iv,8);
1450 ssl_print_data("Server Write IV",s_iv,8);
1453 /* create both client and server ciphers*/
1454 ssl_debug_printf("ssl_generate_keyring_material ssl_create_decoder(client)\n");
1455 ssl_session->client_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->compression, c_mk, c_wk, c_iv);
1456 if (!ssl_session->client_new) {
1457 ssl_debug_printf("ssl_generate_keyring_material can't init client decoder\n");
1460 ssl_debug_printf("ssl_generate_keyring_material ssl_create_decoder(server)\n");
1461 ssl_session->server_new = ssl_create_decoder(&ssl_session->cipher_suite, ssl_session->compression, s_mk, s_wk, s_iv);
1462 if (!ssl_session->server_new) {
1463 ssl_debug_printf("ssl_generate_keyring_material can't init client decoder\n");
1467 ssl_debug_printf("ssl_generate_keyring_material: client seq %d, server seq %d\n",
1468 ssl_session->client_new->seq, ssl_session->server_new->seq);
1469 g_free(key_block.data);
1473 g_free(key_block.data);
1478 ssl_change_cipher(SslDecryptSession *ssl_session, gboolean server)
1480 ssl_debug_printf("ssl_change_cipher %s\n", (server)?"SERVER":"CLIENT");
1482 ssl_session->server = ssl_session->server_new;
1483 ssl_session->server_new = NULL;
1485 ssl_session->client = ssl_session->client_new;
1486 ssl_session->client_new = NULL;
1491 ssl_decrypt_pre_master_secret(SslDecryptSession*ssl_session,
1492 StringInfo* entrypted_pre_master, SSL_PRIVATE_KEY *pk)
1496 if(ssl_session->cipher_suite.kex!=KEX_RSA) {
1497 ssl_debug_printf("ssl_decrypt_pre_master_secret key %d diferent from KEX_RSA(%d)\n",
1498 ssl_session->cipher_suite.kex, KEX_RSA);
1502 /* with tls key loading will fail if not rsa type, so no need to check*/
1503 ssl_print_string("pre master encrypted",entrypted_pre_master);
1504 ssl_debug_printf("ssl_decrypt_pre_master_secret:RSA_private_decrypt\n");
1505 i=ssl_private_decrypt(entrypted_pre_master->data_len,
1506 entrypted_pre_master->data, pk);
1509 ssl_debug_printf("ssl_decrypt_pre_master_secret wrong "
1510 "pre_master_secret length (%d, expected %d)\n", i, 48);
1514 /* the decrypted data has been written into the pre_master key buffer */
1515 ssl_session->pre_master_secret.data = entrypted_pre_master->data;
1516 ssl_session->pre_master_secret.data_len=48;
1517 ssl_print_string("pre master secret",&ssl_session->pre_master_secret);
1519 /* Remove the master secret if it was there.
1520 This force keying material regeneration in
1521 case we're renegotiating */
1522 ssl_session->state &= ~(SSL_MASTER_SECRET|SSL_HAVE_SESSION_KEY);
1526 /* convert network byte order 32 byte number to right-aligned host byte order *
1528 static gint fmt_seq(guint32 num, guint8* buf)
1533 netnum=g_htonl(num);
1534 memcpy(buf+4,&netnum,4);
1540 tls_check_mac(SslDecoder*decoder, gint ct, gint ver, guint8* data,
1541 guint32 datalen, guint8* mac)
1548 md=ssl_get_digest_by_name(digests[decoder->cipher_suite->dig-0x40]);
1549 ssl_debug_printf("tls_check_mac mac type:%s md %d\n",
1550 digests[decoder->cipher_suite->dig-0x40], md);
1552 ssl_hmac_init(&hm,decoder->mac_key.data,decoder->mac_key.data_len,md);
1554 /* hash sequence number */
1555 fmt_seq(decoder->seq,buf);
1559 ssl_hmac_update(&hm,buf,8);
1561 /* hash content type */
1563 ssl_hmac_update(&hm,buf,1);
1565 /* hash version,data length and data*/
1566 *((gint16*)buf) = g_htons(ver);
1567 ssl_hmac_update(&hm,buf,2);
1569 *((gint16*)buf) = g_htons(datalen);
1570 ssl_hmac_update(&hm,buf,2);
1571 ssl_hmac_update(&hm,data,datalen);
1573 /* get digest and digest len*/
1574 ssl_hmac_final(&hm,buf,&len);
1575 ssl_print_data("Mac", buf, len);
1576 if(memcmp(mac,buf,len))
1579 ssl_hmac_cleanup(&hm);
1584 ssl3_check_mac(SslDecoder*decoder,int ct,guint8* data,
1585 guint32 datalen, guint8* mac)
1590 guint8 buf[64],dgst[20];
1593 pad_ct=(decoder->cipher_suite->dig==DIG_SHA)?40:48;
1595 /* get cipher used for digest comptuation */
1596 md=ssl_get_digest_by_name(digests[decoder->cipher_suite->dig-0x40]);
1597 ssl_md_init(&mc,md);
1599 /* do hash computation on data && padding */
1600 ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len);
1603 memset(buf,0x36,pad_ct);
1604 ssl_md_update(&mc,buf,pad_ct);
1606 /* hash sequence number */
1607 fmt_seq(decoder->seq,buf);
1609 ssl_md_update(&mc,buf,8);
1611 /* hash content type */
1613 ssl_md_update(&mc,buf,1);
1615 /* hash data length in network byte order and data*/
1616 *((gint16* )buf) = g_htons(datalen);
1617 ssl_md_update(&mc,buf,2);
1618 ssl_md_update(&mc,data,datalen);
1620 /* get partial digest */
1621 ssl_md_final(&mc,dgst,&len);
1622 ssl_md_cleanup(&mc);
1624 ssl_md_init(&mc,md);
1627 ssl_md_update(&mc,decoder->mac_key.data,decoder->mac_key.data_len);
1629 /* hash padding and partial digest*/
1630 memset(buf,0x5c,pad_ct);
1631 ssl_md_update(&mc,buf,pad_ct);
1632 ssl_md_update(&mc,dgst,len);
1634 ssl_md_final(&mc,dgst,&len);
1635 ssl_md_cleanup(&mc);
1637 if(memcmp(mac,dgst,len))
1645 dtls_check_mac(SslDecoder*decoder, gint ct,int ver, guint8* data,
1646 guint32 datalen, guint8* mac)
1653 md=ssl_get_digest_by_name(digests[decoder->cipher_suite->dig-0x40]);
1654 ssl_debug_printf("dtls_check_mac mac type:%s md %d\n",
1655 digests[decoder->cipher_suite->dig-0x40], md);
1657 ssl_hmac_init(&hm,decoder->mac_key.data,decoder->mac_key.data_len,md);
1658 ssl_debug_printf("dtls_check_mac seq: %d epoch: %d\n",decoder->seq,decoder->epoch);
1659 /* hash sequence number */
1660 fmt_seq(decoder->seq,buf);
1661 buf[0]=decoder->epoch>>8;
1662 buf[1]=decoder->epoch;
1664 ssl_hmac_update(&hm,buf,8);
1666 /* hash content type */
1668 ssl_hmac_update(&hm,buf,1);
1670 /* hash version,data length and data */
1671 *((gint16*)buf) = g_htons(ver);
1672 ssl_hmac_update(&hm,buf,2);
1674 *((gint16*)buf) = g_htons(datalen);
1675 ssl_hmac_update(&hm,buf,2);
1676 ssl_hmac_update(&hm,data,datalen);
1677 /* get digest and digest len */
1678 ssl_hmac_final(&hm,buf,&len);
1679 ssl_print_data("Mac", buf, len);
1680 if(memcmp(mac,buf,len))
1683 ssl_hmac_cleanup(&hm);
1690 ssl_decompress_record(SslDecompress* decomp, const guchar* in, guint inl, StringInfo* out_str, guint* outl)
1696 switch (decomp->compression) {
1698 case 1: /* DEFLATE */
1700 if (out_str->data_len < 16384) { /* maximal plain length */
1701 ssl_data_realloc(out_str, 16384);
1703 decomp->istream.next_in = (guchar*)in;
1704 decomp->istream.avail_in = inl;
1705 decomp->istream.next_out = out_str->data;
1706 decomp->istream.avail_out = out_str->data_len;
1708 err = inflate(&decomp->istream, Z_SYNC_FLUSH);
1710 ssl_debug_printf("ssl_decompress_record: inflate() failed - %d\n", err);
1713 *outl = out_str->data_len - decomp->istream.avail_out;
1715 #endif /* HAVE_LIBZ */
1717 ssl_debug_printf("ssl_decompress_record: unsupported compression method %d\n", decomp->compression);
1724 ssl_decrypt_record(SslDecryptSession*ssl,SslDecoder* decoder, gint ct,
1725 const guchar* in, guint inl, StringInfo* comp_str, StringInfo* out_str, guint* outl)
1727 guint pad, worklen, uncomplen;
1730 ssl_debug_printf("ssl_decrypt_record ciphertext len %d\n", inl);
1731 ssl_print_data("Ciphertext",in, inl);
1733 /* ensure we have enough storage space for decrypted data */
1734 if (inl > out_str->data_len)
1736 ssl_debug_printf("ssl_decrypt_record: allocating %d bytes for decrypt data (old len %d)\n",
1737 inl + 32, out_str->data_len);
1738 ssl_data_realloc(out_str, inl + 32);
1742 if ((pad = ssl_cipher_decrypt(&decoder->evp, out_str->data, out_str->data_len, in, inl))!= 0) {
1743 ssl_debug_printf("ssl_decrypt_record failed: ssl_cipher_decrypt: %s %s\n", gcry_strsource (pad),
1744 gcry_strerror (pad));
1748 ssl_print_data("Plaintext", out_str->data, inl);
1751 /* Now strip off the padding*/
1752 if(decoder->cipher_suite->block!=1) {
1753 pad=out_str->data[inl-1];
1755 ssl_debug_printf("ssl_decrypt_record found padding %d final len %d\n",
1760 if (decoder->cipher_suite->dig_len > (gint)worklen)
1762 ssl_debug_printf("ssl_decrypt_record wrong record len/padding outlen %d\n work %d\n",*outl, worklen);
1765 worklen-=decoder->cipher_suite->dig_len;
1766 mac = out_str->data + worklen;
1768 /* if TLS 1.1 we use the transmitted IV and remove it after (to not modify dissector in others parts)*/
1769 if(ssl->version_netorder==TLSV1DOT1_VERSION){
1770 worklen=worklen-decoder->cipher_suite->block;
1771 memcpy(out_str->data,out_str->data+decoder->cipher_suite->block,worklen);
1773 if(ssl->version_netorder==DTLSV1DOT0_VERSION ||
1774 ssl->version_netorder==DTLSV1DOT0_VERSION_NOT){
1775 worklen=worklen-decoder->cipher_suite->block;
1776 memcpy(out_str->data,out_str->data+decoder->cipher_suite->block,worklen);
1778 /* Now check the MAC */
1779 ssl_debug_printf("checking mac (len %d, version %X, ct %d seq %d)\n",
1780 worklen, ssl->version_netorder, ct, decoder->seq);
1781 if(ssl->version_netorder==SSLV3_VERSION){
1782 if(ssl3_check_mac(decoder,ct,out_str->data,worklen,mac) < 0) {
1783 ssl_debug_printf("ssl_decrypt_record: mac failed\n");
1787 else if(ssl->version_netorder==TLSV1_VERSION || ssl->version_netorder==TLSV1DOT1_VERSION){
1788 if(tls_check_mac(decoder,ct,ssl->version_netorder,out_str->data,worklen,mac)< 0) {
1789 ssl_debug_printf("ssl_decrypt_record: mac failed\n");
1793 else if(ssl->version_netorder==DTLSV1DOT0_VERSION ||
1794 ssl->version_netorder==DTLSV1DOT0_VERSION_NOT){
1795 /* follow the openssl dtls errors the rigth test is : dtls_check_mac(decoder,ct,ssl->version_netorder,out,worklen,mac)< 0 */
1796 /* if(dtls_check_mac(decoder,ct,ssl->version_netorder,out_str->data,worklen,mac)< 0) { */
1797 if(tls_check_mac(decoder,ct,TLSV1_VERSION,out_str->data,worklen,mac)< 0) {
1798 ssl_debug_printf("ssl_decrypt_record: mac failed\n");
1802 ssl_debug_printf("ssl_decrypt_record: mac ok\n");
1805 if (decoder->compression > 0) {
1806 ssl_debug_printf("ssl_decrypt_record: compression method %d\n", decoder->compression);
1807 ssl_data_copy(comp_str, out_str);
1808 ssl_print_data("Plaintext compressed", comp_str->data, worklen);
1809 if (!decoder->decomp) {
1810 ssl_debug_printf("decrypt_ssl3_record: no decoder available\n");
1813 if (ssl_decompress_record(decoder->decomp, comp_str->data, worklen, out_str, &uncomplen) < 0) return -1;
1814 ssl_print_data("Plaintext uncompressed", out_str->data, uncomplen);
1822 ssl_get_version(gint* major, gint* minor, gint* patch)
1831 ssl_privkey_to_sexp(struct gnutls_x509_privkey_int* priv_key)
1833 gnutls_datum_t rsa_datum[RSA_PARS]; /* m, e, d, p, q, u */
1835 gcry_sexp_t rsa_priv_key;
1836 gint major, minor, patch;
1840 gcry_mpi_t* rsa_params = g_malloc(sizeof(gcry_mpi_t)*RSA_PARS);
1842 gcry_mpi_t rsa_params[RSA_PARS];
1846 * note: openssl and gnutls use 'p' and 'q' with opposite meaning:
1847 * our 'p' must be equal to 'q' as provided from openssl and viceversa
1850 /* RSA get parameter */
1851 if (gnutls_x509_privkey_export_rsa_raw(priv_key,
1852 &rsa_datum[0], &rsa_datum[1], &rsa_datum[2], &rsa_datum[4], &rsa_datum[3], &rsa_datum[5]) != 0) {
1853 ssl_debug_printf("ssl_load_key: can't export rsa param (is a rsa private key file ?!?)\n");
1860 /* convert each rsa parameter to mpi format*/
1861 for(i=0; i<RSA_PARS; i++) {
1862 if (gcry_mpi_scan(&rsa_params[i], GCRYMPI_FMT_USG, rsa_datum[i].data, rsa_datum[i].size,&tmp_size) != 0) {
1863 ssl_debug_printf("ssl_load_key: can't convert m rsa param to int (size %d)\n", rsa_datum[i].size);
1871 ssl_get_version(&major, &minor, &patch);
1873 /* certain versions of gnutls require swap of rsa params 'p' and 'q' */
1874 if ((major <= 1) && (minor <= 0) && (patch <=13))
1877 ssl_debug_printf("ssl_load_key: swapping p and q parametes\n");
1878 tmp = rsa_params[4];
1879 rsa_params[4] = rsa_params[3];
1880 rsa_params[3] = tmp;
1883 if (gcry_sexp_build( &rsa_priv_key, NULL,
1884 "(private-key(rsa((n%m)(e%m)(d%m)(p%m)(q%m)(u%m))))", rsa_params[0],
1885 rsa_params[1], rsa_params[2], rsa_params[3], rsa_params[4],
1886 rsa_params[5]) != 0) {
1887 ssl_debug_printf("ssl_load_key: can't built rsa private key s-exp\n");
1899 for (i=0; i< 6; i++)
1900 gcry_mpi_release(rsa_params[i]);
1902 return rsa_priv_key;
1908 ssl_load_key(FILE* fp)
1910 /* gnutls make our work much harded, since we have to work internally with
1911 * s-exp formatted data, but PEM loader export only in "gnutls_datum"
1912 * format, and a datum -> s-exp convertion function does not exist.
1914 gnutls_x509_privkey_t priv_key;
1919 Ssl_private_key_t *private_key = g_malloc(sizeof(Ssl_private_key_t));
1920 private_key->x509_cert = 0;
1921 private_key->x509_pkey = 0;
1922 private_key->sexp_pkey = 0;
1924 /* init private key data*/
1925 gnutls_x509_privkey_init(&priv_key);
1927 /* compute file size and load all file contents into a datum buffer*/
1928 if (fseek(fp, 0, SEEK_END) < 0) {
1929 ssl_debug_printf("ssl_load_key: can't fseek file\n");
1930 g_free(private_key);
1933 if ((size = ftell(fp)) < 0) {
1934 ssl_debug_printf("ssl_load_key: can't ftell file\n");
1935 g_free(private_key);
1938 if (fseek(fp, 0, SEEK_SET) < 0) {
1939 ssl_debug_printf("ssl_load_key: can't refseek file\n");
1940 g_free(private_key);
1943 key.data = g_malloc(size);
1945 bytes = fread(key.data, 1, key.size, fp);
1946 if (bytes < key.size) {
1947 ssl_debug_printf("ssl_load_key: can't read from file %d bytes, got %d\n",
1949 g_free(private_key);
1954 /* import PEM data*/
1955 if (gnutls_x509_privkey_import(priv_key, &key, GNUTLS_X509_FMT_PEM)!=0) {
1956 ssl_debug_printf("ssl_load_key: can't import pem data\n");
1957 g_free(private_key);
1963 private_key->x509_pkey = priv_key;
1964 private_key->sexp_pkey = ssl_privkey_to_sexp(priv_key);
1965 if ( !private_key->sexp_pkey ) {
1966 g_free(private_key);
1972 const char *BAGTYPE(gnutls_pkcs12_bag_type_t x) {
1974 case GNUTLS_BAG_EMPTY: return "Empty";
1975 case GNUTLS_BAG_PKCS8_ENCRYPTED_KEY: return "PKCS#8 Encrypted key";
1976 case GNUTLS_BAG_PKCS8_KEY: return "PKCS#8 Key";
1977 case GNUTLS_BAG_CERTIFICATE: return "Certificate";
1978 case GNUTLS_BAG_CRL: return "CRL";
1979 case GNUTLS_BAG_ENCRYPTED: return "Encrypted";
1980 case GNUTLS_BAG_UNKNOWN: return "Unknown";
1981 default: return "<undefined>";
1986 ssl_load_pkcs12(FILE* fp, const gchar *cert_passwd) {
1991 gnutls_datum_t data;
1992 gnutls_pkcs12_bag_t bag = NULL;
1993 gnutls_pkcs12_bag_type_t bag_type;
1995 static char buf_name[256];
1996 static char buf_email[128];
1997 unsigned char buf_keyid[32];
1999 gnutls_pkcs12_t ssl_p12 = NULL;
2000 gnutls_x509_crt_t ssl_cert = NULL;
2001 gnutls_x509_privkey_t ssl_pkey = NULL;
2003 Ssl_private_key_t *private_key = g_malloc(sizeof(Ssl_private_key_t));
2004 private_key->x509_cert = 0;
2005 private_key->x509_pkey = 0;
2006 private_key->sexp_pkey = 0;
2009 data.data = malloc(rest);
2012 while ((len = fread(p, 1, rest, fp)) > 0) {
2017 data.data = realloc(data.data, data.size + rest);
2018 p = data.data + data.size;
2023 ssl_debug_printf("%d bytes read\n", data.size);
2025 ssl_debug_printf( "Error during certificate reading.\n");
2026 g_free(private_key);
2030 ret = gnutls_pkcs12_init(&ssl_p12);
2032 ssl_debug_printf("gnutls_pkcs12_init(&st_p12) - %s", gnutls_strerror(ret));
2033 g_free(private_key);
2036 ret = gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_DER, 0);
2039 ssl_debug_printf("gnutls_pkcs12_import(ssl_p12, &data, GNUTLS_X509_FMT_DER, 0) - %s\n", gnutls_strerror(ret));
2040 g_free(private_key);
2044 ssl_debug_printf( "PKCS#12 imported\n");
2046 for (i=0; ret==0; i++) {
2048 if (bag) { gnutls_pkcs12_bag_deinit(bag); bag = NULL; }
2050 ret = gnutls_pkcs12_bag_init(&bag);
2051 if (ret < 0) continue;
2053 ret = gnutls_pkcs12_get_bag(ssl_p12, i, bag);
2054 if (ret < 0) continue;
2056 for (j=0; ret==0 && j<gnutls_pkcs12_bag_get_count(bag); j++) {
2058 bag_type = gnutls_pkcs12_bag_get_type(bag, j);
2059 if (bag_type < 0) continue;
2060 ssl_debug_printf( "Bag %d/%d: %s\n", i, j, BAGTYPE(bag_type));
2061 if (bag_type == GNUTLS_BAG_ENCRYPTED) {
2062 ret = gnutls_pkcs12_bag_decrypt(bag, cert_passwd);
2064 bag_type = gnutls_pkcs12_bag_get_type(bag, j);
2065 if (bag_type < 0) continue;
2066 ssl_debug_printf( "Bag %d/%d decrypted: %s\n", i, j, BAGTYPE(bag_type));
2071 ret = gnutls_pkcs12_bag_get_data(bag, j, &data);
2072 if (ret < 0) continue;
2076 case GNUTLS_BAG_CERTIFICATE:
2078 ret = gnutls_x509_crt_init(&ssl_cert);
2080 ssl_debug_printf( "gnutls_x509_crt_init(&ssl_cert) - %s\n", gnutls_strerror(ret));
2081 g_free(private_key);
2085 ret = gnutls_x509_crt_import(ssl_cert, &data, GNUTLS_X509_FMT_DER);
2087 ssl_debug_printf( "gnutls_x509_crt_import(ssl_cert, &data, GNUTLS_X509_FMT_DER) - %s\n", gnutls_strerror(ret));
2088 g_free(private_key);
2092 buf_len = sizeof(buf_name);
2093 ret = gnutls_x509_crt_get_dn_by_oid(ssl_cert, GNUTLS_OID_X520_COMMON_NAME, 0, 0, buf_name, &buf_len);
2094 if (ret < 0) { strcpy(buf_name, "<ERROR>"); }
2095 buf_len = sizeof(buf_email);
2096 ret = gnutls_x509_crt_get_dn_by_oid(ssl_cert, GNUTLS_OID_PKCS9_EMAIL, 0, 0, buf_email, &buf_len);
2097 if (ret < 0) { strcpy(buf_email, "<ERROR>"); }
2099 buf_len = sizeof(buf_keyid);
2100 ret = gnutls_x509_crt_get_key_id(ssl_cert, 0, buf_keyid, &buf_len);
2101 if (ret < 0) { strcpy(buf_keyid, "<ERROR>"); }
2103 private_key->x509_cert = ssl_cert;
2104 ssl_debug_printf( "Certificate imported: %s <%s>, KeyID %s\n", buf_name, buf_email, bytes_to_str(buf_keyid, buf_len));
2107 case GNUTLS_BAG_PKCS8_KEY:
2108 case GNUTLS_BAG_PKCS8_ENCRYPTED_KEY:
2110 ret = gnutls_x509_privkey_init(&ssl_pkey);
2112 ssl_debug_printf( "gnutls_x509_privkey_init(&ssl_pkey) - %s\n", gnutls_strerror(ret));
2113 g_free(private_key);
2116 ret = gnutls_x509_privkey_import_pkcs8(ssl_pkey, &data, GNUTLS_X509_FMT_DER, cert_passwd,
2117 (bag_type==GNUTLS_BAG_PKCS8_KEY) ? GNUTLS_PKCS_PLAIN : 0);
2119 ssl_debug_printf( "Can not decrypt private key - %s\n", gnutls_strerror(ret));
2120 g_free(private_key);
2124 buf_len = sizeof(buf_keyid);
2125 ret = gnutls_x509_privkey_get_key_id(ssl_pkey, 0, buf_keyid, &buf_len);
2127 ssl_debug_printf( "gnutls_x509_privkey_get_key_id(ssl_pkey, 0, buf_keyid, &buf_len) - %s\n", gnutls_strerror(ret));
2130 ssl_debug_printf( "Private key imported: KeyID %s\n", bytes_to_str(buf_keyid, buf_len));
2132 private_key->x509_pkey = ssl_pkey;
2133 private_key->sexp_pkey = ssl_privkey_to_sexp(ssl_pkey);
2134 if ( !private_key->sexp_pkey ) {
2135 g_free(private_key);
2149 void ssl_free_key(Ssl_private_key_t* key)
2153 for (i=0; i< 6; i++)
2154 gcry_mpi_release(key->sexp_pkey[i]);
2156 gcry_sexp_release(key->sexp_pkey);
2159 if (!key->x509_cert)
2160 gnutls_x509_crt_deinit (key->x509_cert);
2162 if (!key->x509_pkey)
2163 gnutls_x509_privkey_deinit(key->x509_pkey);
2165 g_free((Ssl_private_key_t*)key);
2171 const gchar* str = gnutls_check_version(NULL);
2173 /* get library version */
2174 /* old relase of gnutls does not define the appropriate macros, so get
2175 * them from the string*/
2176 ssl_debug_printf("gnutls version: %s\n", str);
2177 sscanf(str, "%d.%d.%d", &ver_major, &ver_minor, &ver_patch);
2180 #else /* HAVE_LIBGNUTLS */
2181 /* no libgnutl: dummy operation to keep interface consistent*/
2188 ssl_load_key(FILE* fp)
2190 ssl_debug_printf("ssl_load_key: impossible without glutls. fp %p\n",fp);
2195 ssl_load_pkcs12(FILE* fp, const gchar *cert_passwd) {
2196 ssl_debug_printf("ssl_load_pkcs12: impossible without glutls. fp %p\n",fp);
2201 ssl_free_key(Ssl_private_key_t* key _U_)
2206 ssl_find_cipher(int num,SslCipherSuite* cs)
2208 ssl_debug_printf("ssl_find_cipher: dummy without glutls. num %d cs %p\n",
2213 ssl_generate_keyring_material(SslDecryptSession*ssl)
2215 ssl_debug_printf("ssl_generate_keyring_material: impossible without glutls. ssl %p\n",
2220 ssl_change_cipher(SslDecryptSession *ssl_session, gboolean server)
2222 ssl_debug_printf("ssl_change_cipher %s: makes no sence without gnutls. ssl %p\n", (server)?"SERVER":"CLIENT", ssl_session);
2226 ssl_decrypt_pre_master_secret(SslDecryptSession* ssl_session,
2227 StringInfo* entrypted_pre_master, SSL_PRIVATE_KEY *pk)
2229 ssl_debug_printf("ssl_decrypt_pre_master_secret: impossible without glutls."
2230 " ssl %p entrypted_pre_master %p pk %p\n", ssl_session,
2231 entrypted_pre_master, pk);
2236 ssl_decrypt_record(SslDecryptSession*ssl, SslDecoder* decoder, gint ct,
2237 const guchar* in, guint inl, StringInfo* comp_str _U_, StringInfo* out, guint* outl)
2239 ssl_debug_printf("ssl_decrypt_record: impossible without gnutls. ssl %p"
2240 "decoder %p ct %d, in %p inl %d out %p outl %p\n", ssl, decoder, ct,
2241 in, inl, out, outl);
2246 ssl_cipher_setiv(SSL_CIPHER_CTX *cipher _U_, guchar* iv _U_, gint iv_len _U_)
2248 ssl_debug_printf("ssl_cipher_setiv: impossible without glutls.\n");
2252 #endif /* HAVE_LIBGNUTLS */
2254 /* get ssl data for this session. if no ssl data is found allocate a new one*/
2256 ssl_session_init(SslDecryptSession* ssl_session)
2258 ssl_debug_printf("ssl_session_init: initializing ptr %p size %lu\n",
2259 ssl_session, (gulong)sizeof(SslDecryptSession));
2261 ssl_session->master_secret.data = ssl_session->_master_secret;
2262 ssl_session->session_id.data = ssl_session->_session_id;
2263 ssl_session->client_random.data = ssl_session->_client_random;
2264 ssl_session->server_random.data = ssl_session->_server_random;
2265 ssl_session->master_secret.data_len = 48;
2266 ssl_session->server_data_for_iv.data = 0;
2267 ssl_session->server_data_for_iv.data = ssl_session->_server_data_for_iv;
2268 ssl_session->client_data_for_iv.data = 0;
2269 ssl_session->client_data_for_iv.data = ssl_session->_client_data_for_iv;
2270 ssl_session->app_data_segment.data=NULL;
2271 ssl_session->app_data_segment.data_len=0;
2274 /* Hash Functions for TLS/DTLS sessions table and private keys table*/
2276 ssl_equal (gconstpointer v, gconstpointer v2)
2278 const StringInfo *val1;
2279 const StringInfo *val2;
2280 val1 = (const StringInfo *)v;
2281 val2 = (const StringInfo *)v2;
2283 if (val1->data_len == val2->data_len &&
2284 !memcmp(val1->data, val2->data, val2->data_len)) {
2291 ssl_hash (gconstpointer v)
2294 const StringInfo* id;
2297 id = (const StringInfo*) v;
2298 cur = (const guint*) id->data;
2300 for (l=4; (l<id->data_len); l+=4, cur++)
2301 hash = hash ^ (*cur);
2307 ssl_private_key_equal (gconstpointer v, gconstpointer v2)
2309 const SslService *val1;
2310 const SslService *val2;
2311 val1 = (const SslService *)v;
2312 val2 = (const SslService *)v2;
2314 if ((val1->port == val2->port) &&
2315 ! CMP_ADDRESS(&val1->addr, &val2->addr)) {
2322 ssl_private_key_hash (gconstpointer v)
2324 const SslService *key;
2325 guint l, hash, len ;
2327 key = (const SslService *)v;
2329 len = key->addr.len;
2330 cur = (const guint*) key->addr.data;
2332 for (l=4; (l<len); l+=4, cur++)
2333 hash = hash ^ (*cur);
2338 /* private key table entries have a scope 'larger' then packet capture,
2339 * so we can't relay on se_alloc** function */
2341 ssl_private_key_free(gpointer id, gpointer key, gpointer dummy _U_)
2344 ssl_free_key((Ssl_private_key_t*) key);
2347 /* handling of association between tls/dtls ports and clear text protocol */
2349 ssl_association_add(GTree* associations, dissector_handle_t handle, guint port, const gchar *protocol, gboolean tcp, gboolean from_key_list)
2352 SslAssociation* assoc;
2353 assoc = g_malloc(sizeof(SslAssociation));
2356 assoc->ssl_port = port;
2357 assoc->info=g_malloc(strlen(protocol)+1);
2358 strcpy(assoc->info, protocol);
2359 assoc->handle = find_dissector(protocol);
2360 assoc->from_key_list = from_key_list;
2362 ssl_debug_printf("association_add %s port %d protocol %s handle %p\n",
2363 (assoc->tcp)?"TCP":"UDP", port, protocol, assoc->handle);
2366 if (!assoc->handle) {
2367 ssl_debug_printf("association_add could not find handle for protocol '%s', try to find 'data' dissector\n", protocol);
2368 assoc->handle = find_dissector("data");
2372 fprintf(stderr, "association_add() could not find handle for protocol:%s\n",protocol);
2375 dissector_add("tcp.port", port, handle);
2377 dissector_add("udp.port", port, handle);
2378 g_tree_insert(associations, assoc, assoc);
2383 ssl_association_remove(GTree* associations, SslAssociation *assoc)
2385 ssl_debug_printf("ssl_association_remove removing %s %u - %s handle %p\n",
2386 (assoc->tcp)?"TCP":"UDP", assoc->ssl_port, assoc->info, assoc->handle);
2388 dissector_delete((assoc->tcp)?"tcp.port":"udp.port", assoc->ssl_port, assoc->handle);
2390 g_tree_remove(associations, assoc);
2395 ssl_association_cmp(gconstpointer a, gconstpointer b)
2397 const SslAssociation *assoc_a=a, *assoc_b=b;
2398 if (assoc_a->tcp != assoc_b->tcp) return (assoc_a->tcp)?1:-1;
2399 return assoc_a->ssl_port - assoc_b->ssl_port;
2403 ssl_association_find(GTree * associations, guint port, gboolean tcp)
2405 register SslAssociation* ret;
2406 SslAssociation assoc_tmp;
2408 assoc_tmp.tcp = tcp;
2409 assoc_tmp.ssl_port = port;
2410 ret = g_tree_lookup(associations, &assoc_tmp);
2412 ssl_debug_printf("association_find: %s port %d found %p\n", (tcp)?"TCP":"UDP", port, ret);
2417 ssl_assoc_from_key_list(gpointer key _U_, gpointer data, gpointer user_data)
2419 if (((SslAssociation*)data)->from_key_list)
2420 ep_stack_push((ep_stack_t)user_data, data);
2425 ssl_packet_from_server(GTree* associations, guint port, gboolean tcp)
2428 ret = ssl_association_find(associations, port, tcp) != 0;
2430 ssl_debug_printf("packet_from_server: is from server - %s\n", (ret)?"TRUE":"FALSE");
2434 /* add to packet data a newly allocated tvb with the specified real data*/
2436 ssl_add_record_info(gint proto, packet_info *pinfo, guchar* data, gint data_len, gint record_id)
2441 real_data = se_alloc(data_len);
2442 rec = se_alloc(sizeof(SslRecordInfo));
2443 pi = p_get_proto_data(pinfo->fd, proto);
2447 pi = se_alloc0(sizeof(SslPacketInfo));
2448 p_add_proto_data(pinfo->fd, proto,pi);
2451 rec->id = record_id;
2452 rec->tvb = tvb_new_real_data(real_data, data_len, data_len);
2453 memcpy(real_data, data, data_len);
2455 /* head insertion */
2456 rec->next= pi->handshake_data;
2457 pi->handshake_data = rec;
2461 /* search in packet data the tvbuff associated to the specified id */
2463 ssl_get_record_info(int proto, packet_info *pinfo, gint record_id)
2467 pi = p_get_proto_data(pinfo->fd, proto);
2472 for (rec = pi->handshake_data; rec; rec = rec->next)
2473 if (rec->id == record_id)
2480 ssl_add_data_info(gint proto, packet_info *pinfo, guchar* data, gint data_len, gint key, SslFlow *flow)
2482 SslDataInfo *rec, **prec;
2485 pi = p_get_proto_data(pinfo->fd, proto);
2488 pi = se_alloc0(sizeof(SslPacketInfo));
2489 p_add_proto_data(pinfo->fd, proto,pi);
2492 rec = se_alloc(sizeof(SslDataInfo)+data_len);
2494 rec->plain_data.data = (guchar*)(rec + 1);
2495 memcpy(rec->plain_data.data, data, data_len);
2496 rec->plain_data.data_len = data_len;
2497 rec->seq = flow->byte_seq;
2498 rec->nxtseq = flow->byte_seq + data_len;
2502 flow->byte_seq += data_len;
2505 prec = &pi->appl_data;
2506 while (*prec) prec = &(*prec)->next;
2509 ssl_debug_printf("ssl_add_data_info: new data inserted data_len = %d, seq = %u, nxtseq = %u\n",
2510 rec->plain_data.data_len, rec->seq, rec->nxtseq);
2514 ssl_get_data_info(int proto, packet_info *pinfo, gint key)
2518 pi = p_get_proto_data(pinfo->fd, proto);
2520 if (!pi) return NULL;
2522 rec = pi->appl_data;
2524 if (rec->key == key) return rec;
2531 /* initialize/reset per capture state data (ssl sessions cache) */
2533 ssl_common_init(GHashTable **session_hash, StringInfo *decrypted_data, StringInfo *compressed_data)
2536 g_hash_table_destroy(*session_hash);
2537 *session_hash = g_hash_table_new(ssl_hash, ssl_equal);
2539 if (decrypted_data->data)
2540 g_free(decrypted_data->data);
2541 ssl_data_alloc(decrypted_data, 32);
2543 if (compressed_data->data)
2544 g_free(compressed_data->data);
2545 ssl_data_alloc(compressed_data, 32);
2548 /* parse ssl related preferences (private keys and ports association strings) */
2550 ssl_parse_key_list(const gchar * keys_list, GHashTable *key_hash, GTree* associations, dissector_handle_t handle, gboolean tcp)
2556 SslService* service;
2557 Ssl_private_key_t * private_key, *tmp_private_key;
2560 start = strdup(keys_list);
2562 ssl_debug_printf("ssl_init keys string:\n%s\n", start);
2564 int read_index, write_index;
2565 gchar* addr, *port, *protocol, *filename, *cert_passwd;
2568 /* split ip/file couple with ';' separator*/
2569 end = strpbrk(start, ";\n\r");
2575 /* skip comments (in file) */
2576 if (addr[0] == '#') continue;
2578 /* for each entry split ip, port, protocol, filename with ',' separator */
2579 ssl_debug_printf("ssl_init found host entry %s\n", addr);
2580 port = strchr(addr, ',');
2583 ssl_debug_printf("ssl_init entry malformed can't find port in '%s'\n", addr);
2589 protocol = strchr(port,',');
2592 ssl_debug_printf("ssl_init entry malformed can't find protocol in %s\n", port);
2598 filename = strchr(protocol,',');
2601 ssl_debug_printf("ssl_init entry malformed can't find filename in %s\n", protocol);
2607 cert_passwd = strchr(filename,',');
2614 /* convert ip and port string to network rappresentation*/
2615 service = g_malloc(sizeof(SslService) + 4);
2616 service->addr.type = AT_IPv4;
2617 service->addr.len = 4;
2618 service->addr.data = ip = ((guchar*)service) + sizeof(SslService);
2620 //remove all spaces in addr
2624 while(addr[read_index]) {
2625 if (addr[read_index] != ' ') {
2626 addr[write_index] = addr[read_index];
2631 addr[write_index] = 0;
2633 if ( !strcmp("any", addr) || !strcmp("ANY", addr) ) {
2639 sscanf(addr, "%hhu.%hhu.%hhu.%hhu", &ip[0], &ip[1], &ip[2], &ip[3]);
2642 service->port = atoi(port);
2643 ssl_debug_printf("ssl_init addr '%hhu.%hhu.%hhu.%hhu' port '%d' filename '%s' password(only for p12 file) '%s'\n",
2644 ip[0], ip[1], ip[2], ip[3], service->port, filename, cert_passwd);
2646 /* try to load pen or p12 file*/
2647 fp = eth_fopen(filename, "rb");
2649 fprintf(stderr, "can't open file %s \n",filename);
2654 private_key = ssl_load_key(fp);
2658 private_key = ssl_load_pkcs12(fp,cert_passwd);
2662 fprintf(stderr,"can't load private key from %s\n",
2669 ssl_debug_printf("ssl_init private key file %s successfully loaded\n",filename);
2671 //if item exists, remove first
2672 if( tmp_private_key = g_hash_table_lookup(key_hash, service) ) {
2673 g_hash_table_remove(key_hash, service);
2674 ssl_free_key(tmp_private_key);
2676 g_hash_table_insert(key_hash, service, private_key);
2678 ssl_association_add(associations, handle, atoi(port), protocol, tcp, TRUE);
2680 } while (end != NULL);
2684 /* store master secret into session data cache */
2686 ssl_save_session(SslDecryptSession* ssl, GHashTable *session_hash)
2688 /* allocate stringinfo chunks for session id and master secret data*/
2689 StringInfo* session_id;
2690 StringInfo* master_secret;
2691 session_id = se_alloc0(sizeof(StringInfo) + ssl->session_id.data_len);
2692 master_secret = se_alloc0(48 + sizeof(StringInfo));
2694 master_secret->data = ((guchar*)master_secret+sizeof(StringInfo));
2695 session_id->data = ((guchar*)session_id+sizeof(StringInfo));
2697 ssl_data_set(session_id, ssl->session_id.data, ssl->session_id.data_len);
2698 ssl_data_set(master_secret, ssl->master_secret.data, ssl->master_secret.data_len);
2699 g_hash_table_insert(session_hash, session_id, master_secret);
2700 ssl_print_string("ssl_save_session stored session id", session_id);
2701 ssl_print_string("ssl_save_session stored master secret", master_secret);
2705 ssl_restore_session(SslDecryptSession* ssl, GHashTable *session_hash)
2708 ms = g_hash_table_lookup(session_hash, &ssl->session_id);
2711 ssl_debug_printf("ssl_restore_session can't find stored session\n");
2714 ssl_data_set(&ssl->master_secret, ms->data, ms->data_len);
2715 ssl->state |= SSL_MASTER_SECRET;
2716 ssl_debug_printf("ssl_restore_session master key retrived\n");
2720 ssl_is_valid_content_type(guint8 type)
2722 if (type >= 0x14 && type <= 0x17)
2730 #ifdef SSL_DECRYPT_DEBUG
2732 static FILE* ssl_debug_file=NULL;
2735 ssl_set_debug(char* name)
2737 static gint debug_file_must_be_closed;
2739 debug_file_must_be_closed = 0;
2740 use_stderr = name?(strcmp(name, SSL_DEBUG_USE_STDERR) == 0):0;
2742 if (debug_file_must_be_closed)
2743 fclose(ssl_debug_file);
2745 ssl_debug_file = stderr;
2746 else if (!name || (strcmp(name, "") ==0))
2747 ssl_debug_file = NULL;
2749 ssl_debug_file = eth_fopen(name, "w");
2750 if (!use_stderr && ssl_debug_file)
2751 debug_file_must_be_closed = 1;
2755 ssl_debug_flush(void)
2758 fflush(ssl_debug_file);
2762 ssl_debug_printf(const gchar* fmt, ...)
2768 if (!ssl_debug_file)
2772 ret += vfprintf(ssl_debug_file, fmt, ap);
2777 ssl_print_text_data(const gchar* name, const guchar* data, gint len)
2780 if (!ssl_debug_file)
2782 fprintf(ssl_debug_file,"%s: ",name);
2783 for (i=0; i< len; i++) {
2784 fprintf(ssl_debug_file,"%c",data[i]);
2786 fprintf(ssl_debug_file,"\n");
2790 ssl_print_data(const gchar* name, const guchar* data, gint len)
2793 if (!ssl_debug_file)
2795 fprintf(ssl_debug_file,"%s[%d]:\n",name, len);
2796 for (i=0; i< len; i++) {
2797 if ((i>0) && (i%16 == 0))
2798 fprintf(ssl_debug_file,"\n");
2799 fprintf(ssl_debug_file,"%.2x ",data[i]&255);
2801 fprintf(ssl_debug_file,"\n");
2805 ssl_print_string(const gchar* name, const StringInfo* data)
2807 ssl_print_data(name, data->data, data->data_len);
2809 #endif /* SSL_DECRYPT_DEBUG */