1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * _ __ ___ ___ __| | ___ ___| | mod_ssl
19 * | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
20 * | | | | | | (_) | (_| | \__ \__ \ |
21 * |_| |_| |_|\___/ \__,_|___|___/___/_|
26 /* ``The difference between a computer
27 industry job and open-source software
28 hacking is about 30 hours a week.''
29 -- Ralf S. Engelschall */
30 #include "ssl_private.h"
32 /* _________________________________________________________________
35 ** _________________________________________________________________
39 const char *cpPattern;
40 const char *cpAnnotation;
41 } ssl_log_annotate[] = {
42 { "*envelope*bad*decrypt*", "wrong pass phrase!?" },
43 { "*CLIENT_HELLO*unknown*protocol*", "speaking not SSL to HTTPS port!?" },
44 { "*CLIENT_HELLO*http*request*", "speaking HTTP to HTTPS port!?" },
45 { "*SSL3_READ_BYTES:sslv3*alert*bad*certificate*", "Subject CN in certificate not server name or identical to CA!?" },
46 { "*self signed certificate in certificate chain*", "Client certificate signed by CA not known to server?" },
47 { "*peer did not return a certificate*", "No CAs known to server for verification?" },
48 { "*no shared cipher*", "Too restrictive SSLCipherSuite or using DSA server certificate?" },
49 { "*no start line*", "Bad file contents or format - or even just a forgotten SSLCertificateKeyFile?" },
50 { "*bad password read*", "You entered an incorrect pass phrase!?" },
51 { "*bad mac decode*", "Browser still remembered details of a re-created server certificate?" },
55 static const char *ssl_log_annotation(const char *error)
59 while (ssl_log_annotate[i].cpPattern != NULL
60 && ap_strcmp_match(error, ssl_log_annotate[i].cpPattern) != 0)
63 return ssl_log_annotate[i].cpAnnotation;
69 * This is used for fatal errors and here
70 * it is common module practice to really
71 * exit from the complete program.
77 * Prints the SSL library error information.
79 void ssl_log_ssl_error(const char *file, int line, int level, server_rec *s)
85 while ((e = ERR_peek_error_line_data(NULL, NULL, &data, &flags))) {
86 const char *annotation;
89 if (!(flags & ERR_TXT_STRING)) {
93 ERR_error_string_n(e, err, sizeof err);
94 annotation = ssl_log_annotation(err);
96 ap_log_error(file, line, APLOG_MODULE_INDEX, level, 0, s,
97 "SSL Library Error: %s%s%s%s%s%s",
101 data ? " (" : "", data ? data : "", data ? ")" : "",
103 annotation ? " -- " : "",
104 annotation ? annotation : "");
106 /* Pop the error off the stack: */
111 static void ssl_log_cert_error(const char *file, int line, int level,
112 apr_status_t rv, const server_rec *s,
113 const conn_rec *c, const request_rec *r,
114 apr_pool_t *p, X509 *cert, const char *format,
117 char buf[HUGE_STRING_LEN];
121 apr_vsnprintf(buf, sizeof buf, format, ap);
123 msglen = strlen(buf);
126 BIO *bio = BIO_new(BIO_s_mem());
130 * Limit the maximum length of the subject and issuer DN strings
131 * in the log message. 300 characters should always be sufficient
132 * for holding both the timestamp, module name, pid etc. stuff
133 * at the beginning of the line and the trailing information about
134 * serial, notbefore and notafter.
136 int maxdnlen = (HUGE_STRING_LEN - msglen - 300) / 2;
138 BIO_puts(bio, " [subject: ");
139 name = SSL_X509_NAME_to_string(p, X509_get_subject_name(cert),
141 if (!strIsEmpty(name)) {
144 BIO_puts(bio, "-empty-");
147 BIO_puts(bio, " / issuer: ");
148 name = SSL_X509_NAME_to_string(p, X509_get_issuer_name(cert),
150 if (!strIsEmpty(name)) {
153 BIO_puts(bio, "-empty-");
156 BIO_puts(bio, " / serial: ");
157 if (i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert)) == -1)
158 BIO_puts(bio, "(ERROR)");
160 BIO_puts(bio, " / notbefore: ");
161 ASN1_TIME_print(bio, X509_get_notBefore(cert));
163 BIO_puts(bio, " / notafter: ");
164 ASN1_TIME_print(bio, X509_get_notAfter(cert));
168 n = BIO_read(bio, buf + msglen, sizeof buf - msglen - 1);
170 buf[msglen + n] = '\0';
176 apr_snprintf(buf + msglen, sizeof buf - msglen,
177 " [certificate: -not available-]");
181 ap_log_rerror(file, line, APLOG_MODULE_INDEX, level, rv, r, "%s", buf);
184 ap_log_cerror(file, line, APLOG_MODULE_INDEX, level, rv, c, "%s", buf);
187 ap_log_error(file, line, APLOG_MODULE_INDEX, level, rv, s, "%s", buf);
193 * Wrappers for ap_log_error/ap_log_cerror/ap_log_rerror which log additional
194 * details of the X509 cert. For ssl_log_xerror, a pool needs to be passed in
195 * as well (for temporary allocation of the cert's subject/issuer name strings,
196 * in the other cases we use the connection and request pool, respectively).
198 void ssl_log_xerror(const char *file, int line, int level, apr_status_t rv,
199 apr_pool_t *ptemp, server_rec *s, X509 *cert,
200 const char *fmt, ...)
202 if (APLOG_IS_LEVEL(s,level)) {
205 ssl_log_cert_error(file, line, level, rv, s, NULL, NULL, ptemp,
211 void ssl_log_cxerror(const char *file, int line, int level, apr_status_t rv,
212 conn_rec *c, X509 *cert, const char *fmt, ...)
214 if (APLOG_IS_LEVEL(mySrvFromConn(c),level)) {
217 ssl_log_cert_error(file, line, level, rv, NULL, c, NULL, c->pool,
223 void ssl_log_rxerror(const char *file, int line, int level, apr_status_t rv,
224 request_rec *r, X509 *cert, const char *fmt, ...)
226 if (APLOG_R_IS_LEVEL(r,level)) {
229 ssl_log_cert_error(file, line, level, rv, NULL, NULL, r, r->pool,