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
348
349
350
351
352
353
354
|
Index: lighttpd-1.4.x/src/network.c
===================================================================
--- lighttpd-1.4.x/src/network.c (revision 2912)
+++ lighttpd-1.4.x/src/network.c (revision 2913)
@@ -112,20 +112,46 @@
config_patch_connection(srv, con, COMP_HTTP_SCHEME);
config_patch_connection(srv, con, COMP_HTTP_HOST);
- if (NULL == con->conf.ssl_ctx) {
- /* ssl_ctx <=> pemfile was set <=> ssl_ctx got patched: so this should never happen */
+ if (NULL == con->conf.ssl_pemfile_x509 || NULL == con->conf.ssl_pemfile_pkey) {
+ /* x509/pkey available <=> pemfile was set <=> pemfile got patched: so this should never happen, unless you nest $SERVER["socket"] */
log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
- "null SSL_CTX for TLS server name", con->tlsext_server_name);
+ "no certificate/private key for TLS server name", con->tlsext_server_name);
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
- /* switch to new SSL_CTX in reaction to a client's server_name extension */
- if (con->conf.ssl_ctx != SSL_set_SSL_CTX(ssl, con->conf.ssl_ctx)) {
- log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
- "failed to set SSL_CTX for TLS server name", con->tlsext_server_name);
+ /* first set certificate! setting private key checks whether certificate matches it */
+ if (!SSL_use_certificate(ssl, con->conf.ssl_pemfile_x509)) {
+ log_error_write(srv, __FILE__, __LINE__, "ssb:s", "SSL:",
+ "failed to set certificate for TLS server name", con->tlsext_server_name,
+ ERR_error_string(ERR_get_error(), NULL));
return SSL_TLSEXT_ERR_ALERT_FATAL;
}
+ if (!SSL_use_PrivateKey(ssl, con->conf.ssl_pemfile_pkey)) {
+ log_error_write(srv, __FILE__, __LINE__, "ssb:s", "SSL:",
+ "failed to set private key for TLS server name", con->tlsext_server_name,
+ ERR_error_string(ERR_get_error(), NULL));
+ return SSL_TLSEXT_ERR_ALERT_FATAL;
+ }
+
+ if (con->conf.ssl_verifyclient) {
+ if (NULL == con->conf.ssl_ca_file_cert_names) {
+ log_error_write(srv, __FILE__, __LINE__, "ssb:s", "SSL:",
+ "can't verify client without ssl.ca-file for TLS server name", con->tlsext_server_name,
+ ERR_error_string(ERR_get_error(), NULL));
+ return SSL_TLSEXT_ERR_ALERT_FATAL;
+ }
+
+ SSL_set_client_CA_list(ssl, SSL_dup_CA_list(con->conf.ssl_ca_file_cert_names));
+ /* forcing verification here is really not that useful - a client could just connect without SNI */
+ SSL_set_verify(
+ ssl,
+ SSL_VERIFY_PEER | (con->conf.ssl_verifyclient_enforce ? SSL_VERIFY_FAIL_IF_NO_PEER_CERT : 0),
+ NULL
+ );
+ SSL_set_verify_depth(ssl, con->conf.ssl_verifyclient_depth);
+ }
+
return SSL_TLSEXT_ERR_OK;
}
#endif
@@ -491,9 +517,100 @@
NETWORK_BACKEND_SOLARIS_SENDFILEV
} network_backend_t;
+#ifdef USE_OPENSSL
+static X509* x509_load_pem_file(server *srv, const char *file) {
+ BIO *in;
+ X509 *x = NULL;
+
+ in = BIO_new(BIO_s_file());
+ if (NULL == in) {
+ log_error_write(srv, __FILE__, __LINE__, "S", "SSL: BIO_new(BIO_s_file()) failed");
+ goto error;
+ }
+
+ if (BIO_read_filename(in,file) <= 0) {
+ log_error_write(srv, __FILE__, __LINE__, "SSS", "SSL: BIO_read_filename('", file,"') failed");
+ goto error;
+ }
+ x = PEM_read_bio_X509(in, NULL, NULL, NULL);
+
+ if (NULL == x) {
+ log_error_write(srv, __FILE__, __LINE__, "SSS", "SSL: couldn't read X509 certificate from '", file,"'");
+ goto error;
+ }
+
+ BIO_free(in);
+ return x;
+
+error:
+ if (NULL != x) X509_free(x);
+ if (NULL != in) BIO_free(in);
+ return NULL;
+}
+
+static EVP_PKEY* evp_pkey_load_pem_file(server *srv, const char *file) {
+ BIO *in;
+ EVP_PKEY *x = NULL;
+
+ in=BIO_new(BIO_s_file());
+ if (NULL == in) {
+ log_error_write(srv, __FILE__, __LINE__, "s", "SSL: BIO_new(BIO_s_file()) failed");
+ goto error;
+ }
+
+ if (BIO_read_filename(in,file) <= 0) {
+ log_error_write(srv, __FILE__, __LINE__, "SSS", "SSL: BIO_read_filename('", file,"') failed");
+ goto error;
+ }
+ x = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL);
+
+ if (NULL == x) {
+ log_error_write(srv, __FILE__, __LINE__, "SSS", "SSL: couldn't read private key from '", file,"'");
+ goto error;
+ }
+
+ BIO_free(in);
+ return x;
+
+error:
+ if (NULL != x) EVP_PKEY_free(x);
+ if (NULL != in) BIO_free(in);
+ return NULL;
+}
+
+static int network_openssl_load_pemfile(server *srv, size_t ndx) {
+ specific_config *s = srv->config_storage[ndx];
+
+#ifdef OPENSSL_NO_TLSEXT
+ {
+ data_config *dc = (data_config *)srv->config_context->data[i];
+ if ((ndx > 0 && (COMP_SERVER_SOCKET != dc->comp || dc->cond != CONFIG_COND_EQ))
+ || !s->ssl_enabled) {
+ log_error_write(srv, __FILE__, __LINE__, "ss", "SSL:",
+ "ssl.pemfile only works in SSL socket binding context as openssl version does not support TLS extensions");
+ return -1;
+ }
+ }
+#endif
+
+ if (NULL == (s->ssl_pemfile_x509 = x509_load_pem_file(srv, s->ssl_pemfile->ptr))) return -1;
+ if (NULL == (s->ssl_pemfile_pkey = evp_pkey_load_pem_file(srv, s->ssl_pemfile->ptr))) return -1;
+
+ if (!X509_check_private_key(s->ssl_pemfile_x509, s->ssl_pemfile_pkey)) {
+ log_error_write(srv, __FILE__, __LINE__, "sssb", "SSL:",
+ "Private key does not match the certificate public key, reason:",
+ ERR_error_string(ERR_get_error(), NULL),
+ s->ssl_pemfile);
+ return -1;
+ }
+
+ return 0;
+}
+#endif
+
int network_init(server *srv) {
buffer *b;
- size_t i;
+ size_t i, j;
network_backend_t backend;
#if OPENSSL_VERSION_NUMBER >= 0x0090800fL
@@ -580,19 +697,8 @@
long ssloptions =
SSL_OP_ALL | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | SSL_OP_NO_COMPRESSION;
- if (buffer_is_empty(s->ssl_pemfile)) continue;
+ if (buffer_is_empty(s->ssl_pemfile) && buffer_is_empty(s->ssl_ca_file)) continue;
-#ifdef OPENSSL_NO_TLSEXT
- {
- data_config *dc = (data_config *)srv->config_context->data[i];
- if (COMP_HTTP_HOST == dc->comp) {
- log_error_write(srv, __FILE__, __LINE__, "ss", "SSL:",
- "can't use ssl.pemfile with $HTTP[\"host\"], openssl version does not support TLS extensions");
- return -1;
- }
- }
-#endif
-
if (srv->ssl_is_init == 0) {
SSL_load_error_strings();
SSL_library_init();
@@ -606,6 +712,29 @@
}
}
+ if (!buffer_is_empty(s->ssl_pemfile)) {
+#ifdef OPENSSL_NO_TLSEXT
+ data_config *dc = (data_config *)srv->config_context->data[i];
+ if (COMP_HTTP_HOST == dc->comp) {
+ log_error_write(srv, __FILE__, __LINE__, "ss", "SSL:",
+ "can't use ssl.pemfile with $HTTP[\"host\"], openssl version does not support TLS extensions");
+ return -1;
+ }
+#endif
+ if (network_openssl_load_pemfile(srv, i)) return -1;
+ }
+
+
+ if (!buffer_is_empty(s->ssl_ca_file)) {
+ s->ssl_ca_file_cert_names = SSL_load_client_CA_file(s->ssl_ca_file->ptr);
+ if (NULL == s->ssl_ca_file_cert_names) {
+ log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
+ ERR_error_string(ERR_get_error(), NULL), s->ssl_ca_file);
+ }
+ }
+
+ if (buffer_is_empty(s->ssl_pemfile) || !s->ssl_enabled) continue;
+
if (NULL == (s->ssl_ctx = SSL_CTX_new(SSLv23_server_method()))) {
log_error_write(srv, __FILE__, __LINE__, "ss", "SSL:",
ERR_error_string(ERR_get_error(), NULL));
@@ -721,45 +850,42 @@
#endif
#endif
- if (!buffer_is_empty(s->ssl_ca_file)) {
- if (1 != SSL_CTX_load_verify_locations(s->ssl_ctx, s->ssl_ca_file->ptr, NULL)) {
- log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
- ERR_error_string(ERR_get_error(), NULL), s->ssl_ca_file);
- return -1;
- }
- if (s->ssl_verifyclient) {
- STACK_OF(X509_NAME) *certs = SSL_load_client_CA_file(s->ssl_ca_file->ptr);
- if (!certs) {
+ /* load all ssl.ca-files specified in the config into each SSL_CTX to be prepared for SNI */
+ for (j = 0; j < srv->config_context->used; j++) {
+ specific_config *s1 = srv->config_storage[j];
+
+ if (!buffer_is_empty(s1->ssl_ca_file)) {
+ if (1 != SSL_CTX_load_verify_locations(s->ssl_ctx, s1->ssl_ca_file->ptr, NULL)) {
log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
- ERR_error_string(ERR_get_error(), NULL), s->ssl_ca_file);
- }
- if (SSL_CTX_set_session_id_context(s->ssl_ctx, (void*) &srv, sizeof(srv)) != 1) {
- log_error_write(srv, __FILE__, __LINE__, "ss", "SSL:",
- ERR_error_string(ERR_get_error(), NULL));
+ ERR_error_string(ERR_get_error(), NULL), s1->ssl_ca_file);
return -1;
}
- SSL_CTX_set_client_CA_list(s->ssl_ctx, certs);
- SSL_CTX_set_verify(
- s->ssl_ctx,
- SSL_VERIFY_PEER | (s->ssl_verifyclient_enforce ? SSL_VERIFY_FAIL_IF_NO_PEER_CERT : 0),
- NULL
+ }
+ }
+
+ if (s->ssl_verifyclient) {
+ if (NULL == s->ssl_ca_file_cert_names) {
+ log_error_write(srv, __FILE__, __LINE__, "s",
+ "SSL: You specified ssl.verifyclient.activate but no ca_file"
);
- SSL_CTX_set_verify_depth(s->ssl_ctx, s->ssl_verifyclient_depth);
+ return -1;
}
- } else if (s->ssl_verifyclient) {
- log_error_write(
- srv, __FILE__, __LINE__, "s",
- "SSL: You specified ssl.verifyclient.activate but no ca_file"
+ SSL_CTX_set_client_CA_list(s->ssl_ctx, SSL_dup_CA_list(s->ssl_ca_file_cert_names));
+ SSL_CTX_set_verify(
+ s->ssl_ctx,
+ SSL_VERIFY_PEER | (s->ssl_verifyclient_enforce ? SSL_VERIFY_FAIL_IF_NO_PEER_CERT : 0),
+ NULL
);
+ SSL_CTX_set_verify_depth(s->ssl_ctx, s->ssl_verifyclient_depth);
}
- if (SSL_CTX_use_certificate_file(s->ssl_ctx, s->ssl_pemfile->ptr, SSL_FILETYPE_PEM) < 0) {
+ if (SSL_CTX_use_certificate(s->ssl_ctx, s->ssl_pemfile_x509) < 0) {
log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
ERR_error_string(ERR_get_error(), NULL), s->ssl_pemfile);
return -1;
}
- if (SSL_CTX_use_PrivateKey_file (s->ssl_ctx, s->ssl_pemfile->ptr, SSL_FILETYPE_PEM) < 0) {
+ if (SSL_CTX_use_PrivateKey(s->ssl_ctx, s->ssl_pemfile_pkey) < 0) {
log_error_write(srv, __FILE__, __LINE__, "ssb", "SSL:",
ERR_error_string(ERR_get_error(), NULL), s->ssl_pemfile);
return -1;
@@ -856,7 +982,6 @@
for (i = 1; i < srv->config_context->used; i++) {
data_config *dc = (data_config *)srv->config_context->data[i];
specific_config *s = srv->config_storage[i];
- size_t j;
/* not our stage */
if (COMP_SERVER_SOCKET != dc->comp) continue;
Index: lighttpd-1.4.x/src/base.h
===================================================================
--- lighttpd-1.4.x/src/base.h (revision 2912)
+++ lighttpd-1.4.x/src/base.h (revision 2913)
@@ -320,7 +320,11 @@
off_t *global_bytes_per_second_cnt_ptr; /* */
#ifdef USE_OPENSSL
- SSL_CTX *ssl_ctx;
+ SSL_CTX *ssl_ctx; /* not patched */
+ /* SNI per host: with COMP_SERVER_SOCKET, COMP_HTTP_SCHEME, COMP_HTTP_HOST */
+ EVP_PKEY *ssl_pemfile_pkey;
+ X509 *ssl_pemfile_x509;
+ STACK_OF(X509_NAME) *ssl_ca_file_cert_names;
#endif
} specific_config;
Index: lighttpd-1.4.x/src/server.c
===================================================================
--- lighttpd-1.4.x/src/server.c (revision 2912)
+++ lighttpd-1.4.x/src/server.c (revision 2913)
@@ -314,6 +314,9 @@
buffer_free(s->ssl_verifyclient_username);
#ifdef USE_OPENSSL
SSL_CTX_free(s->ssl_ctx);
+ EVP_PKEY_free(s->ssl_pemfile_pkey);
+ X509_free(s->ssl_pemfile_x509);
+ if (NULL != s->ssl_ca_file_cert_names) sk_X509_NAME_pop_free(s->ssl_ca_file_cert_names, X509_NAME_free);
#endif
free(s);
}
Index: lighttpd-1.4.x/src/configfile.c
===================================================================
--- lighttpd-1.4.x/src/configfile.c (revision 2912)
+++ lighttpd-1.4.x/src/configfile.c (revision 2913)
@@ -339,9 +339,13 @@
PATCH(ssl_pemfile);
#ifdef USE_OPENSSL
- PATCH(ssl_ctx);
+ PATCH(ssl_pemfile_x509);
+ PATCH(ssl_pemfile_pkey);
#endif
PATCH(ssl_ca_file);
+#ifdef USE_OPENSSL
+ PATCH(ssl_ca_file_cert_names);
+#endif
PATCH(ssl_cipher_list);
PATCH(ssl_dh_file);
PATCH(ssl_ec_curve);
@@ -409,10 +413,14 @@
} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.pemfile"))) {
PATCH(ssl_pemfile);
#ifdef USE_OPENSSL
- PATCH(ssl_ctx);
+ PATCH(ssl_pemfile_x509);
+ PATCH(ssl_pemfile_pkey);
#endif
} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.ca-file"))) {
PATCH(ssl_ca_file);
+#ifdef USE_OPENSSL
+ PATCH(ssl_ca_file_cert_names);
+#endif
} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.honor-cipher-order"))) {
PATCH(ssl_honor_cipher_order);
} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.empty-fragments"))) {
|