1 /* tls_m.c - Handle tls/ssl using Mozilla NSS. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2008-2012 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* ACKNOWLEDGEMENTS: Initial version written by Howard Chu.
17 * Additional support by Rich Megginson.
24 #include "ldap_config.h"
28 #if defined( HAVE_FCNTL_H )
32 #include <ac/stdlib.h>
34 #include <ac/socket.h>
35 #include <ac/string.h>
38 #include <ac/unistd.h>
40 #include <ac/dirent.h>
45 #define READ_PASSWORD_FROM_STDIN
46 #define READ_PASSWORD_FROM_FILE
48 #ifdef READ_PASSWORD_FROM_STDIN
49 #include <termios.h> /* for echo on/off */
52 #include <nspr/nspr.h>
53 #include <nspr/private/pprio.h>
56 #include <nss/sslerr.h>
57 #include <nss/sslproto.h>
58 #include <nss/pk11pub.h>
59 #include <nss/secerr.h>
60 #include <nss/keyhi.h>
61 #include <nss/secmod.h>
64 #undef NSS_VERSION_INT
65 #define NSS_VERSION_INT ((NSS_VMAJOR << 24) | (NSS_VMINOR << 16) | \
66 (NSS_VPATCH << 8) | NSS_VBUILD)
68 /* NSS 3.12.5 and later have NSS_InitContext */
69 #if NSS_VERSION_INT >= 0x030c0500
70 #define HAVE_NSS_INITCONTEXT 1
73 /* NSS 3.12.9 and later have SECMOD_RestartModules */
74 #if NSS_VERSION_INT >= 0x030c0900
75 #define HAVE_SECMOD_RESTARTMODULES 1
78 /* InitContext does not currently work in server mode */
79 /* #define INITCONTEXT_HACK 1 */
81 typedef struct tlsm_ctx {
84 int tc_unique; /* unique number associated with this ctx */
85 PRBool tc_verify_cert;
86 CERTCertDBHandle *tc_certdb;
87 PK11SlotInfo *tc_certdb_slot;
88 CERTCertificate *tc_certificate;
89 SECKEYPrivateKey *tc_private_key;
91 struct ldaptls *tc_config;
94 PRCallOnceType tc_callonce;
96 #ifdef HAVE_NSS_INITCONTEXT
97 NSSInitContext *tc_initctx; /* the NSS context */
99 PK11GenericObject **tc_pem_objs; /* array of objects to free */
100 int tc_n_pem_objs; /* number of objects */
101 PRBool tc_warn_only; /* only warn of errors in validation */
102 #ifdef LDAP_R_COMPILE
103 ldap_pvt_thread_mutex_t tc_refmutex;
107 typedef PRFileDesc tlsm_session;
109 static int tlsm_ctx_count;
110 #define TLSM_CERTDB_DESC_FMT "ldap(%d)"
112 static PRDescIdentity tlsm_layer_id;
114 static const PRIOMethods tlsm_PR_methods;
116 #define CERTDB_NONE NULL
117 #define PREFIX_NONE NULL
119 #define PEM_LIBRARY "nsspem"
120 #define PEM_MODULE "PEM"
121 /* hash files for use with cacertdir have this file name suffix */
122 #define PEM_CA_HASH_FILE_SUFFIX ".0"
123 #define PEM_CA_HASH_FILE_SUFFIX_LEN 2
125 static SECMODModule *pem_module;
127 #define DEFAULT_TOKEN_NAME "default"
128 #define TLSM_PEM_SLOT_CACERTS "PEM Token #0"
129 #define TLSM_PEM_SLOT_CERTS "PEM Token #1"
131 #define PK11_SETATTRS(x,id,v,l) (x).type = (id); \
132 (x).pValue=(v); (x).ulValueLen = (l);
134 /* forward declaration */
135 static int tlsm_init( void );
137 #ifdef LDAP_R_COMPILE
139 /* it doesn't seem guaranteed that a client will call
140 tlsm_thr_init in a non-threaded context - so we have
141 to wrap the mutex creation in a prcallonce
143 static ldap_pvt_thread_mutex_t tlsm_ctx_count_mutex;
144 static ldap_pvt_thread_mutex_t tlsm_init_mutex;
145 static ldap_pvt_thread_mutex_t tlsm_pem_mutex;
146 static PRCallOnceType tlsm_init_mutex_callonce = {0,0};
148 static PRStatus PR_CALLBACK
149 tlsm_thr_init_callonce( void )
151 if ( ldap_pvt_thread_mutex_init( &tlsm_ctx_count_mutex ) ) {
152 Debug( LDAP_DEBUG_ANY,
153 "TLS: could not create mutex for context counter: %d\n", errno, 0, 0 );
157 if ( ldap_pvt_thread_mutex_init( &tlsm_init_mutex ) ) {
158 Debug( LDAP_DEBUG_ANY,
159 "TLS: could not create mutex for moznss initialization: %d\n", errno, 0, 0 );
163 if ( ldap_pvt_thread_mutex_init( &tlsm_pem_mutex ) ) {
164 Debug( LDAP_DEBUG_ANY,
165 "TLS: could not create mutex for PEM module: %d\n", errno, 0, 0 );
173 tlsm_thr_init( void )
175 ( void )PR_CallOnce( &tlsm_init_mutex_callonce, tlsm_thr_init_callonce );
178 #endif /* LDAP_R_COMPILE */
181 tlsm_dump_cipher_info(PRFileDesc *fd)
185 for (ii = 0; ii < SSL_NumImplementedCiphers; ++ii) {
186 PRInt32 cipher = (PRInt32)SSL_ImplementedCiphers[ii];
187 PRBool enabled = PR_FALSE;
189 SSLCipherSuiteInfo info;
192 SSL_CipherPrefGet(fd, cipher, &enabled);
194 SSL_CipherPrefGetDefault(cipher, &enabled);
196 SSL_CipherPolicyGet(cipher, &policy);
197 SSL_GetCipherSuiteInfo(cipher, &info, (PRUintn)sizeof(info));
198 Debug( LDAP_DEBUG_TRACE,
199 "TLS: cipher: %d - %s, enabled: %d, ",
200 info.cipherSuite, info.cipherSuiteName, enabled );
201 Debug( LDAP_DEBUG_TRACE,
202 "policy: %d\n", policy, 0, 0 );
208 /* Cipher definitions */
210 char *ossl_name; /* The OpenSSL cipher name */
211 int num; /* The cipher id */
212 int attr; /* cipher attributes: algorithms, etc */
213 int version; /* protocol version valid for this cipher */
214 int bits; /* bits of strength */
215 int alg_bits; /* bits of the algorithm */
216 int strength; /* LOW, MEDIUM, HIGH */
217 int enabled; /* Enabled by default? */
220 /* cipher attributes */
221 #define SSL_kRSA 0x00000001L
222 #define SSL_aRSA 0x00000002L
223 #define SSL_aDSS 0x00000004L
224 #define SSL_DSS SSL_aDSS
225 #define SSL_eNULL 0x00000008L
226 #define SSL_DES 0x00000010L
227 #define SSL_3DES 0x00000020L
228 #define SSL_RC4 0x00000040L
229 #define SSL_RC2 0x00000080L
230 #define SSL_AES 0x00000100L
231 #define SSL_MD5 0x00000200L
232 #define SSL_SHA1 0x00000400L
233 #define SSL_SHA SSL_SHA1
234 #define SSL_RSA (SSL_kRSA|SSL_aRSA)
236 /* cipher strength */
237 #define SSL_NULL 0x00000001L
238 #define SSL_EXPORT40 0x00000002L
239 #define SSL_EXPORT56 0x00000004L
240 #define SSL_LOW 0x00000008L
241 #define SSL_MEDIUM 0x00000010L
242 #define SSL_HIGH 0x00000020L
244 #define SSL2 0x00000001L
245 #define SSL3 0x00000002L
246 /* OpenSSL treats SSL3 and TLSv1 the same */
249 /* Cipher translation */
250 static cipher_properties ciphers_def[] = {
252 {"DES-CBC3-MD5", SSL_EN_DES_192_EDE3_CBC_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5, SSL2, 168, 168, SSL_HIGH, SSL_ALLOWED},
253 {"RC2-CBC-MD5", SSL_EN_RC2_128_CBC_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5, SSL2, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
254 {"RC4-MD5", SSL_EN_RC4_128_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL2, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
255 {"DES-CBC-MD5", SSL_EN_DES_64_CBC_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5, SSL2, 56, 56, SSL_LOW, SSL_ALLOWED},
256 {"EXP-RC2-CBC-MD5", SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5, SSL2, 40, 128, SSL_EXPORT40, SSL_ALLOWED},
257 {"EXP-RC4-MD5", SSL_EN_RC4_128_EXPORT40_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL2, 40, 128, SSL_EXPORT40, SSL_ALLOWED},
260 {"RC4-MD5", SSL_RSA_WITH_RC4_128_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL3, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
261 {"RC4-SHA", SSL_RSA_WITH_RC4_128_SHA, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_SHA1, SSL3, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
262 {"DES-CBC3-SHA", SSL_RSA_WITH_3DES_EDE_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_SHA1, SSL3, 168, 168, SSL_HIGH, SSL_ALLOWED},
263 {"DES-CBC-SHA", SSL_RSA_WITH_DES_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1, SSL3, 56, 56, SSL_LOW, SSL_ALLOWED},
264 {"EXP-RC4-MD5", SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL3, 40, 128, SSL_EXPORT40, SSL_ALLOWED},
265 {"EXP-RC2-CBC-MD5", SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5, SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5, SSL3, 0, 0, SSL_EXPORT40, SSL_ALLOWED},
266 {"NULL-MD5", SSL_RSA_WITH_NULL_MD5, SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5, SSL3, 0, 0, SSL_NULL, SSL_NOT_ALLOWED},
267 {"NULL-SHA", SSL_RSA_WITH_NULL_SHA, SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_SHA1, SSL3, 0, 0, SSL_NULL, SSL_NOT_ALLOWED},
270 {"EXP1024-DES-CBC-SHA", TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA, TLS1, 56, 56, SSL_EXPORT56, SSL_ALLOWED},
271 {"EXP1024-RC4-SHA", TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_SHA, TLS1, 56, 56, SSL_EXPORT56, SSL_ALLOWED},
272 {"AES128-SHA", TLS_RSA_WITH_AES_128_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_AES|SSL_SHA, TLS1, 128, 128, SSL_HIGH, SSL_ALLOWED},
273 {"AES256-SHA", TLS_RSA_WITH_AES_256_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_AES|SSL_SHA, TLS1, 256, 256, SSL_HIGH, SSL_ALLOWED},
276 #define ciphernum (sizeof(ciphers_def)/sizeof(cipher_properties))
278 /* given err which is the current errno, calls PR_SetError with
279 the corresponding NSPR error code */
281 tlsm_map_error(int err)
287 prError = PR_NO_ACCESS_RIGHTS_ERROR;
290 prError = PR_ADDRESS_IN_USE_ERROR;
293 prError = PR_ADDRESS_NOT_AVAILABLE_ERROR;
296 prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
299 prError = PR_WOULD_BLOCK_ERROR;
302 * On QNX and Neutrino, EALREADY is defined as EBUSY.
304 #if EALREADY != EBUSY
306 prError = PR_ALREADY_INITIATED_ERROR;
310 prError = PR_BAD_DESCRIPTOR_ERROR;
314 prError = PR_IO_ERROR;
318 prError = PR_FILESYSTEM_MOUNTED_ERROR;
321 prError = PR_CONNECT_ABORTED_ERROR;
324 prError = PR_CONNECT_REFUSED_ERROR;
327 prError = PR_CONNECT_RESET_ERROR;
330 prError = PR_DEADLOCK_ERROR;
334 prError = PR_DIRECTORY_CORRUPTED_ERROR;
339 prError = PR_NO_DEVICE_SPACE_ERROR;
343 prError = PR_FILE_EXISTS_ERROR;
346 prError = PR_ACCESS_FAULT_ERROR;
349 prError = PR_FILE_TOO_BIG_ERROR;
352 prError = PR_HOST_UNREACHABLE_ERROR;
355 prError = PR_IN_PROGRESS_ERROR;
358 prError = PR_PENDING_INTERRUPT_ERROR;
361 prError = PR_INVALID_ARGUMENT_ERROR;
364 prError = PR_IO_ERROR;
367 prError = PR_IS_CONNECTED_ERROR;
370 prError = PR_IS_DIRECTORY_ERROR;
373 prError = PR_LOOP_ERROR;
376 prError = PR_PROC_DESC_TABLE_FULL_ERROR;
379 prError = PR_MAX_DIRECTORY_ENTRIES_ERROR;
382 prError = PR_INVALID_ARGUMENT_ERROR;
386 prError = PR_REMOTE_FILE_ERROR;
390 prError = PR_NAME_TOO_LONG_ERROR;
393 prError = PR_NETWORK_UNREACHABLE_ERROR;
396 prError = PR_SYS_DESC_TABLE_FULL_ERROR;
399 * On SCO OpenServer 5, ENOBUFS is defined as ENOSR.
401 #if defined(ENOBUFS) && (ENOBUFS != ENOSR)
403 prError = PR_INSUFFICIENT_RESOURCES_ERROR;
407 prError = PR_FILE_NOT_FOUND_ERROR;
410 prError = PR_FILE_NOT_FOUND_ERROR;
413 prError = PR_FILE_IS_LOCKED_ERROR;
417 prError = PR_REMOTE_FILE_ERROR;
421 prError = PR_OUT_OF_MEMORY_ERROR;
424 prError = PR_INVALID_ARGUMENT_ERROR;
427 prError = PR_NO_DEVICE_SPACE_ERROR;
431 prError = PR_INSUFFICIENT_RESOURCES_ERROR;
435 prError = PR_NOT_CONNECTED_ERROR;
438 prError = PR_NOT_DIRECTORY_ERROR;
441 prError = PR_NOT_SOCKET_ERROR;
444 prError = PR_FILE_NOT_FOUND_ERROR;
447 prError = PR_NOT_TCP_SOCKET_ERROR;
451 prError = PR_BUFFER_OVERFLOW_ERROR;
455 prError = PR_NO_ACCESS_RIGHTS_ERROR;
458 prError = PR_CONNECT_RESET_ERROR;
462 prError = PR_IO_ERROR;
465 case EPROTONOSUPPORT:
466 prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR;
469 prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
472 prError = PR_INVALID_METHOD_ERROR;
475 prError = PR_READ_ONLY_FILESYSTEM_ERROR;
478 prError = PR_INVALID_METHOD_ERROR;
481 prError = PR_IO_TIMEOUT_ERROR;
483 #if EWOULDBLOCK != EAGAIN
485 prError = PR_WOULD_BLOCK_ERROR;
489 prError = PR_NOT_SAME_DEVICE_ERROR;
492 prError = PR_UNKNOWN_ERROR;
495 PR_SetError( prError, err );
499 * cipher_list is an integer array with the following values:
500 * -1: never enable this cipher
505 nss_parse_ciphers(const char *cipherstr, int cipher_list[ciphernum])
514 /* All disabled to start */
515 for (i=0; i<ciphernum; i++)
518 ciphertip = strdup(cipherstr);
519 cipher = ciphers = ciphertip;
521 while (ciphers && (strlen(ciphers))) {
522 while ((*cipher) && (isspace(*cipher)))
527 case '+': /* Add something */
531 case '-': /* Subtract something */
535 case '!': /* Disable something */
544 if ((ciphers = strchr(cipher, ':'))) {
548 /* Do the easy one first */
549 if (!strcmp(cipher, "ALL")) {
550 for (i=0; i<ciphernum; i++) {
551 if (!(ciphers_def[i].attr & SSL_eNULL))
552 cipher_list[i] = action;
554 } else if (!strcmp(cipher, "COMPLEMENTOFALL")) {
555 for (i=0; i<ciphernum; i++) {
556 if ((ciphers_def[i].attr & SSL_eNULL))
557 cipher_list[i] = action;
559 } else if (!strcmp(cipher, "DEFAULT")) {
560 for (i=0; i<ciphernum; i++) {
561 cipher_list[i] = ciphers_def[i].enabled == SSL_ALLOWED ? 1 : 0;
570 while (c && (strlen(c))) {
572 if ((c = strchr(cipher, '+'))) {
576 if (!strcmp(cipher, "RSA")) {
578 } else if ((!strcmp(cipher, "NULL")) || (!strcmp(cipher, "eNULL"))) {
580 } else if (!strcmp(cipher, "AES")) {
582 } else if (!strcmp(cipher, "3DES")) {
584 } else if (!strcmp(cipher, "DES")) {
586 } else if (!strcmp(cipher, "RC4")) {
588 } else if (!strcmp(cipher, "RC2")) {
590 } else if (!strcmp(cipher, "MD5")) {
592 } else if ((!strcmp(cipher, "SHA")) || (!strcmp(cipher, "SHA1"))) {
594 } else if (!strcmp(cipher, "SSLv2")) {
596 } else if (!strcmp(cipher, "SSLv3")) {
598 } else if (!strcmp(cipher, "TLSv1")) {
600 } else if (!strcmp(cipher, "HIGH")) {
601 strength |= SSL_HIGH;
602 } else if (!strcmp(cipher, "MEDIUM")) {
603 strength |= SSL_MEDIUM;
604 } else if (!strcmp(cipher, "LOW")) {
606 } else if ((!strcmp(cipher, "EXPORT")) || (!strcmp(cipher, "EXP"))) {
607 strength |= SSL_EXPORT40|SSL_EXPORT56;
608 } else if (!strcmp(cipher, "EXPORT40")) {
609 strength |= SSL_EXPORT40;
610 } else if (!strcmp(cipher, "EXPORT56")) {
611 strength |= SSL_EXPORT56;
619 /* If we have a mask, apply it. If not then perhaps they provided
620 * a specific cipher to enable.
622 if (mask || strength || protocol) {
623 for (i=0; i<ciphernum; i++) {
624 if (((ciphers_def[i].attr & mask) ||
625 (ciphers_def[i].strength & strength) ||
626 (ciphers_def[i].version & protocol)) &&
627 (cipher_list[i] != -1)) {
628 /* Enable the NULL ciphers only if explicity
630 if (ciphers_def[i].attr & SSL_eNULL) {
631 if (mask & SSL_eNULL)
632 cipher_list[i] = action;
634 cipher_list[i] = action;
638 for (i=0; i<ciphernum; i++) {
639 if (!strcmp(ciphers_def[i].ossl_name, cipher) &&
640 cipher_list[i] != -1)
641 cipher_list[i] = action;
650 /* See if any ciphers were enabled */
652 for (i=0; i<ciphernum; i++) {
653 if (cipher_list[i] == 1)
663 tlsm_parse_ciphers(tlsm_ctx *ctx, const char *str)
665 int cipher_state[ciphernum];
671 rv = nss_parse_ciphers(str, cipher_state);
674 /* First disable everything */
675 for (i = 0; i < SSL_NumImplementedCiphers; i++)
676 SSL_CipherPrefSet(ctx->tc_model, SSL_ImplementedCiphers[i], SSL_NOT_ALLOWED);
678 /* Now enable what was requested */
679 for (i=0; i<ciphernum; i++) {
680 SSLCipherSuiteInfo suite;
683 if (SSL_GetCipherSuiteInfo(ciphers_def[i].num, &suite, sizeof suite)
685 enabled = cipher_state[i] < 0 ? 0 : cipher_state[i];
686 if (enabled == SSL_ALLOWED) {
687 if (PK11_IsFIPS() && !suite.isFIPS)
688 enabled = SSL_NOT_ALLOWED;
690 SSL_CipherPrefSet(ctx->tc_model, ciphers_def[i].num, enabled);
695 return rv == 1 ? 0 : -1;
699 tlsm_bad_cert_handler(void *arg, PRFileDesc *ssl)
701 SECStatus success = SECSuccess;
703 tlsm_ctx *ctx = (tlsm_ctx *)arg;
709 err = PORT_GetError();
712 case SEC_ERROR_UNTRUSTED_ISSUER:
713 case SEC_ERROR_UNKNOWN_ISSUER:
714 case SEC_ERROR_EXPIRED_CERTIFICATE:
715 case SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE:
716 if (ctx->tc_verify_cert) {
717 success = SECFailure;
720 /* we bypass NSS's hostname checks and do our own */
721 case SSL_ERROR_BAD_CERT_DOMAIN:
724 success = SECFailure;
732 tlsm_dump_security_status(PRFileDesc *fd)
734 char * cp; /* bulk cipher name */
735 char * ip; /* cert issuer DN */
736 char * sp; /* cert subject DN */
737 int op; /* High, Low, Off */
738 int kp0; /* total key bits */
739 int kp1; /* secret key bits */
740 SSL3Statistics * ssl3stats = SSL_GetStatistics();
742 SSL_SecurityStatus( fd, &op, &cp, &kp0, &kp1, &ip, &sp );
743 Debug( LDAP_DEBUG_TRACE,
744 "TLS certificate verification: subject: %s, issuer: %s, cipher: %s, ",
745 sp ? sp : "-unknown-", ip ? ip : "-unknown-", cp ? cp : "-unknown-" );
749 Debug( LDAP_DEBUG_TRACE,
750 "security level: %s, secret key bits: %d, total key bits: %d, ",
751 ((op == SSL_SECURITY_STATUS_ON_HIGH) ? "high" :
752 ((op == SSL_SECURITY_STATUS_ON_LOW) ? "low" : "off")),
755 Debug( LDAP_DEBUG_TRACE,
756 "cache hits: %ld, cache misses: %ld, cache not reusable: %ld\n",
757 ssl3stats->hch_sid_cache_hits, ssl3stats->hch_sid_cache_misses,
758 ssl3stats->hch_sid_cache_not_ok );
764 tlsm_handshake_complete_cb( PRFileDesc *fd, void *client_data )
766 tlsm_dump_security_status( fd );
769 #ifdef READ_PASSWORD_FROM_FILE
771 tlsm_get_pin_from_file(const char *token_name, tlsm_ctx *ctx)
774 char *contents = NULL;
777 char *candidate = NULL;
778 PRFileInfo file_info;
779 PRFileDesc *pwd_fileptr = PR_Open( ctx->tc_pin_file, PR_RDONLY, 00400 );
781 /* open the password file */
782 if ( !pwd_fileptr ) {
783 PRErrorCode errcode = PR_GetError();
784 Debug( LDAP_DEBUG_ANY,
785 "TLS: could not open security pin file %s - error %d:%s.\n",
786 ctx->tc_pin_file, errcode,
787 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
791 /* get the file size */
792 if ( PR_SUCCESS != PR_GetFileInfo( ctx->tc_pin_file, &file_info ) ) {
793 PRErrorCode errcode = PR_GetError();
794 Debug( LDAP_DEBUG_ANY,
795 "TLS: could not get file info from pin file %s - error %d:%s.\n",
796 ctx->tc_pin_file, errcode,
797 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
801 /* create a buffer to hold the file contents */
802 if ( !( contents = PR_CALLOC( file_info.size + 1 ) ) ) {
803 PRErrorCode errcode = PR_GetError();
804 Debug( LDAP_DEBUG_ANY,
805 "TLS: could not alloc a buffer for contents of pin file %s - error %d:%s.\n",
806 ctx->tc_pin_file, errcode,
807 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
811 /* read file into the buffer */
812 if( PR_Read( pwd_fileptr, contents, file_info.size ) <= 0 ) {
813 PRErrorCode errcode = PR_GetError();
814 Debug( LDAP_DEBUG_ANY,
815 "TLS: could not read the file contents from pin file %s - error %d:%s.\n",
816 ctx->tc_pin_file, errcode,
817 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
821 /* format is [tokenname:]password EOL [tokenname:]password EOL ... */
822 /* if you want to use a password containing a colon character, use
823 the special tokenname "default" */
824 for ( line = PL_strtok_r( contents, "\r\n", &lasts ); line;
825 line = PL_strtok_r( NULL, "\r\n", &lasts ) ) {
829 continue; /* skip blank lines */
831 colon = PL_strchr( line, ':' );
833 if ( *(colon + 1) && token_name &&
834 !PL_strncmp( token_name, line, colon-line ) ) {
835 candidate = colon + 1; /* found a definite match */
837 } else if ( !PL_strncmp( DEFAULT_TOKEN_NAME, line, colon-line ) ) {
838 candidate = colon + 1; /* found possible match */
840 } else { /* no token name */
846 PR_Close( pwd_fileptr );
849 pwdstr = PL_strdup( candidate );
851 PL_strfree( contents );
855 #endif /* READ_PASSWORD_FROM_FILE */
857 #ifdef READ_PASSWORD_FROM_STDIN
859 * Turn the echoing off on a tty.
864 if ( isatty( fd ) ) {
866 tcgetattr( fd, &tio );
867 tio.c_lflag &= ~ECHO;
868 tcsetattr( fd, TCSAFLUSH, &tio );
873 * Turn the echoing on on a tty.
878 if ( isatty( fd ) ) {
880 tcgetattr( fd, &tio );
882 tcsetattr( fd, TCSAFLUSH, &tio );
883 tcsetattr( fd, TCSAFLUSH, &tio );
886 #endif /* READ_PASSWORD_FROM_STDIN */
889 * This does the actual work of reading the pin/password/pass phrase
892 tlsm_get_pin(PK11SlotInfo *slot, PRBool retry, tlsm_ctx *ctx)
894 char *token_name = NULL;
897 token_name = PK11_GetTokenName( slot );
898 #ifdef READ_PASSWORD_FROM_FILE
899 /* Try to get the passwords from the password file if it exists.
900 * THIS IS UNSAFE and is provided for convenience only. Without this
901 * capability the server would have to be started in foreground mode
902 * if using an encrypted key.
904 if ( ctx->tc_pin_file ) {
905 pwdstr = tlsm_get_pin_from_file( token_name, ctx );
907 #endif /* RETRIEVE_PASSWORD_FROM_FILE */
908 #ifdef READ_PASSWORD_FROM_STDIN
910 int infd = PR_FileDesc2NativeHandle( PR_STDIN );
911 int isTTY = isatty( infd );
912 unsigned char phrase[200];
913 /* Prompt for password */
916 "Please enter pin, password, or pass phrase for security token '%s': ",
917 token_name ? token_name : DEFAULT_TOKEN_NAME );
920 fgets( (char*)phrase, sizeof(phrase), stdin );
922 fprintf( stdout, "\n" );
925 /* stomp on newline */
926 phrase[strlen((char*)phrase)-1] = 0;
928 pwdstr = PL_strdup( (char*)phrase );
931 #endif /* READ_PASSWORD_FROM_STDIN */
936 * PKCS11 devices (including the internal softokn cert/key database)
937 * may be protected by a pin or password or even pass phrase
938 * MozNSS needs a way for the user to provide that
941 tlsm_pin_prompt(PK11SlotInfo *slot, PRBool retry, void *arg)
943 tlsm_ctx *ctx = (tlsm_ctx *)arg;
945 return tlsm_get_pin( slot, retry, ctx );
949 tlsm_ctx_subject_name(tlsm_ctx *ctx)
951 if (!ctx || !ctx->tc_certificate)
954 return ctx->tc_certificate->subjectName;
958 tlsm_get_basic_constraint_extension( CERTCertificate *cert,
959 CERTBasicConstraints *cbcval )
961 SECItem encodedVal = { 0, NULL };
964 rc = CERT_FindCertExtension( cert, SEC_OID_X509_BASIC_CONSTRAINTS,
966 if ( rc != SECSuccess ) {
970 rc = CERT_DecodeBasicConstraintValue( cbcval, &encodedVal );
972 /* free the raw extension data */
973 PORT_Free( encodedVal.data );
979 tlsm_cert_is_self_issued( CERTCertificate *cert )
981 /* A cert is self-issued if its subject and issuer are equal and
982 * both are of non-zero length.
984 PRBool is_self_issued = cert &&
985 (PRBool)SECITEM_ItemsAreEqual( &cert->derIssuer,
986 &cert->derSubject ) &&
987 cert->derSubject.len > 0;
988 return is_self_issued;
992 tlsm_verify_cert(CERTCertDBHandle *handle, CERTCertificate *cert, void *pinarg,
993 PRBool checksig, SECCertificateUsage certUsage, int errorToIgnore )
995 CERTVerifyLog verifylog;
996 SECStatus ret = SECSuccess;
998 int debug_level = LDAP_DEBUG_ANY;
1000 if ( errorToIgnore == -1 ) {
1001 debug_level = LDAP_DEBUG_TRACE;
1004 /* the log captures information about every cert in the chain, so we can tell
1005 which cert caused the problem and what the problem was */
1006 memset( &verifylog, 0, sizeof( verifylog ) );
1007 verifylog.arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE );
1008 if ( verifylog.arena == NULL ) {
1009 Debug( LDAP_DEBUG_ANY,
1010 "TLS certificate verification: Out of memory for certificate verification logger\n",
1014 ret = CERT_VerifyCertificate( handle, cert, checksig, certUsage, PR_Now(), pinarg, &verifylog,
1016 if ( ( name = cert->subjectName ) == NULL ) {
1017 name = cert->nickname;
1019 if ( verifylog.head == NULL ) {
1020 /* it is possible for CERT_VerifyCertificate return with an error with no logging */
1021 if ( ret != SECSuccess ) {
1022 PRErrorCode errcode = PR_GetError();
1024 "TLS: certificate [%s] is not valid - error %d:%s.\n",
1025 name ? name : "(unknown)",
1026 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1030 CERTVerifyLogNode *node;
1032 ret = SECSuccess; /* reset */
1033 node = verifylog.head;
1035 if ( ( name = node->cert->subjectName ) == NULL ) {
1036 name = node->cert->nickname;
1038 if ( node->error ) {
1039 /* NSS does not like CA certs that have the basic constraints extension
1040 with the CA flag set to FALSE - openssl doesn't check if the cert
1042 if ( ( node->error == SEC_ERROR_CA_CERT_INVALID ) &&
1043 tlsm_cert_is_self_issued( node->cert ) ) {
1045 PRErrorCode orig_error = PR_GetError();
1046 PRInt32 orig_oserror = PR_GetOSError();
1048 CERTBasicConstraints basicConstraint;
1049 SECStatus rv = tlsm_get_basic_constraint_extension( node->cert, &basicConstraint );
1050 if ( ( rv == SECSuccess ) && ( basicConstraint.isCA == PR_FALSE ) ) {
1051 Debug( LDAP_DEBUG_TRACE,
1052 "TLS: certificate [%s] is not correct because it is a CA cert and the "
1053 "BasicConstraint CA flag is set to FALSE - allowing for now, but "
1054 "please fix your certs if possible\n", name, 0, 0 );
1055 } else { /* does not have basicconstraint, or some other error */
1058 "TLS: certificate [%s] is not valid - CA cert is not valid\n",
1062 PR_SetError(orig_error, orig_oserror);
1064 } else if ( errorToIgnore && ( node->error == errorToIgnore ) ) {
1066 "TLS: Warning: ignoring error for certificate [%s] - error %ld:%s.\n",
1067 name, node->error, PR_ErrorToString( node->error, PR_LANGUAGE_I_DEFAULT ) );
1071 "TLS: certificate [%s] is not valid - error %ld:%s.\n",
1072 name, node->error, PR_ErrorToString( node->error, PR_LANGUAGE_I_DEFAULT ) );
1075 CERT_DestroyCertificate( node->cert );
1080 PORT_FreeArena( verifylog.arena, PR_FALSE );
1082 if ( ret == SECSuccess ) {
1083 Debug( LDAP_DEBUG_TRACE,
1084 "TLS: certificate [%s] is valid\n", name, 0, 0 );
1085 } else if ( errorToIgnore == -1 ) {
1093 tlsm_auth_cert_handler(void *arg, PRFileDesc *fd,
1094 PRBool checksig, PRBool isServer)
1096 SECCertificateUsage certUsage = isServer ? certificateUsageSSLClient : certificateUsageSSLServer;
1097 SECStatus ret = SECSuccess;
1098 CERTCertificate *peercert = SSL_PeerCertificate( fd );
1099 int errorToIgnore = 0;
1100 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1102 if (ctx && ctx->tc_warn_only )
1105 ret = tlsm_verify_cert( ctx->tc_certdb, peercert,
1106 SSL_RevealPinArg( fd ),
1107 checksig, certUsage, errorToIgnore );
1108 CERT_DestroyCertificate( peercert );
1114 tlsm_authenticate_to_slot( tlsm_ctx *ctx, PK11SlotInfo *slot )
1118 if ( SECSuccess != PK11_Authenticate( slot, PR_FALSE, ctx ) ) {
1119 char *token_name = PK11_GetTokenName( slot );
1120 PRErrorCode errcode = PR_GetError();
1121 Debug( LDAP_DEBUG_ANY,
1122 "TLS: could not authenticate to the security token %s - error %d:%s.\n",
1123 token_name ? token_name : DEFAULT_TOKEN_NAME, errcode,
1124 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1126 rc = 0; /* success */
1133 tlsm_nss_shutdown_cb( void *appData, void *nssData )
1135 SECStatus rc = SECSuccess;
1137 SSL_ShutdownServerSessionIDCache();
1140 SECMOD_UnloadUserModule( pem_module );
1141 SECMOD_DestroyModule( pem_module );
1147 static PRCallOnceType tlsm_register_shutdown_callonce = {0,0};
1148 static PRStatus PR_CALLBACK
1149 tlsm_register_nss_shutdown_cb( void )
1151 if ( SECSuccess == NSS_RegisterShutdown( tlsm_nss_shutdown_cb,
1159 tlsm_register_nss_shutdown( void )
1161 return PR_CallOnce( &tlsm_register_shutdown_callonce,
1162 tlsm_register_nss_shutdown_cb );
1166 tlsm_init_pem_module( void )
1169 char *fullname = NULL;
1170 char *configstring = NULL;
1176 /* not loaded - load it */
1177 /* get the system dependent library name */
1178 fullname = PR_GetLibraryName( NULL, PEM_LIBRARY );
1179 /* Load our PKCS#11 module */
1180 configstring = PR_smprintf( "library=%s name=" PEM_MODULE " parameters=\"\"", fullname );
1181 PL_strfree( fullname );
1183 pem_module = SECMOD_LoadUserModule( configstring, NULL, PR_FALSE );
1184 PR_smprintf_free( configstring );
1186 if ( !pem_module || !pem_module->loaded ) {
1188 SECMOD_DestroyModule( pem_module );
1198 tlsm_add_pem_obj( tlsm_ctx *ctx, PK11GenericObject *obj )
1200 int idx = ctx->tc_n_pem_objs;
1201 ctx->tc_n_pem_objs++;
1202 ctx->tc_pem_objs = (PK11GenericObject **)
1203 PORT_Realloc( ctx->tc_pem_objs, ctx->tc_n_pem_objs * sizeof( PK11GenericObject * ) );
1204 ctx->tc_pem_objs[idx] = obj;
1208 tlsm_free_pem_objs( tlsm_ctx *ctx )
1210 /* free in reverse order of allocation */
1211 while ( ctx->tc_n_pem_objs-- ) {
1212 PK11_DestroyGenericObject( ctx->tc_pem_objs[ctx->tc_n_pem_objs] );
1213 ctx->tc_pem_objs[ctx->tc_n_pem_objs] = NULL;
1215 PORT_Free(ctx->tc_pem_objs);
1216 ctx->tc_pem_objs = NULL;
1217 ctx->tc_n_pem_objs = 0;
1221 tlsm_add_cert_from_file( tlsm_ctx *ctx, const char *filename, PRBool isca )
1224 PK11GenericObject *cert;
1225 CK_ATTRIBUTE attrs[4];
1226 CK_BBOOL cktrue = CK_TRUE;
1227 CK_BBOOL ckfalse = CK_FALSE;
1228 CK_OBJECT_CLASS objClass = CKO_CERTIFICATE;
1232 SECItem certDER = { 0, NULL, 0 };
1234 memset( &fi, 0, sizeof(fi) );
1235 status = PR_GetFileInfo( filename, &fi );
1236 if ( PR_SUCCESS != status) {
1237 PRErrorCode errcode = PR_GetError();
1238 Debug( LDAP_DEBUG_ANY,
1239 "TLS: could not read certificate file %s - error %d:%s.\n",
1241 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1245 if ( fi.type != PR_FILE_FILE ) {
1246 PR_SetError(PR_IS_DIRECTORY_ERROR, 0);
1247 Debug( LDAP_DEBUG_ANY,
1248 "TLS: error: the certificate file %s is not a file.\n",
1253 slotname = isca ? TLSM_PEM_SLOT_CACERTS : TLSM_PEM_SLOT_CERTS;
1254 slot = PK11_FindSlotByName( slotname );
1257 PRErrorCode errcode = PR_GetError();
1258 Debug( LDAP_DEBUG_ANY,
1259 "TLS: could not find the slot for the certificate '%s' - error %d:%s.\n",
1260 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1264 PK11_SETATTRS( attrs[0], CKA_CLASS, &objClass, sizeof(objClass) );
1265 PK11_SETATTRS( attrs[1], CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) );
1266 PK11_SETATTRS( attrs[2], CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 );
1267 PK11_SETATTRS( attrs[3], CKA_TRUST, isca ? &cktrue : &ckfalse, sizeof(CK_BBOOL) );
1269 cert = PK11_CreateGenericObject( slot, attrs, 4, PR_FALSE /* isPerm */ );
1272 PRErrorCode errcode = PR_GetError();
1273 Debug( LDAP_DEBUG_ANY,
1274 "TLS: could not add the certificate '%s' - error %d:%s.\n",
1275 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1276 PK11_FreeSlot( slot );
1280 /* if not CA, we store the certificate in ctx->tc_certificate */
1282 if ( PK11_ReadRawAttribute( PK11_TypeGeneric, cert, CKA_VALUE, &certDER ) != SECSuccess ) {
1283 PRErrorCode errcode = PR_GetError();
1284 Debug( LDAP_DEBUG_ANY,
1285 "TLS: could not get DER of the '%s' certificate - error %d:%s.\n",
1286 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1287 PK11_DestroyGenericObject( cert );
1288 PK11_FreeSlot( slot );
1292 ctx->tc_certificate = PK11_FindCertFromDERCertItem( slot, &certDER, NULL );
1293 SECITEM_FreeItem( &certDER, PR_FALSE );
1295 if ( !ctx->tc_certificate ) {
1296 PRErrorCode errcode = PR_GetError();
1297 Debug( LDAP_DEBUG_ANY,
1298 "TLS: could not get certificate '%s' using DER - error %d:%s.\n",
1299 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1300 PK11_DestroyGenericObject( cert );
1301 PK11_FreeSlot( slot );
1306 tlsm_add_pem_obj( ctx, cert );
1308 PK11_FreeSlot( slot );
1314 tlsm_ctx_load_private_key(tlsm_ctx *ctx)
1316 if (!ctx->tc_certificate)
1319 if (ctx->tc_private_key)
1322 void *pin_arg = SSL_RevealPinArg(ctx->tc_model);
1324 ctx->tc_private_key = PK11_FindKeyByAnyCert(ctx->tc_certificate, pin_arg);
1325 if (!ctx->tc_private_key) {
1326 PRErrorCode errcode = PR_GetError();
1327 Debug(LDAP_DEBUG_ANY,
1328 "TLS: cannot find private key for certificate '%s' (error %d: %s)",
1329 tlsm_ctx_subject_name(ctx), errcode,
1330 PR_ErrorToString(errcode, PR_LANGUAGE_I_DEFAULT));
1338 tlsm_add_key_from_file( tlsm_ctx *ctx, const char *filename )
1340 PK11SlotInfo * slot = NULL;
1341 PK11GenericObject *key;
1342 CK_ATTRIBUTE attrs[3];
1343 CK_BBOOL cktrue = CK_TRUE;
1344 CK_OBJECT_CLASS objClass = CKO_PRIVATE_KEY;
1349 memset( &fi, 0, sizeof(fi) );
1350 status = PR_GetFileInfo( filename, &fi );
1351 if ( PR_SUCCESS != status) {
1352 PRErrorCode errcode = PR_GetError();
1353 Debug( LDAP_DEBUG_ANY,
1354 "TLS: could not read key file %s - error %d:%s.\n",
1356 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1360 if ( fi.type != PR_FILE_FILE ) {
1361 PR_SetError(PR_IS_DIRECTORY_ERROR, 0);
1362 Debug( LDAP_DEBUG_ANY,
1363 "TLS: error: the key file %s is not a file.\n",
1368 slot = PK11_FindSlotByName( TLSM_PEM_SLOT_CERTS );
1371 PRErrorCode errcode = PR_GetError();
1372 Debug( LDAP_DEBUG_ANY,
1373 "TLS: could not find the slot for the private key '%s' - error %d:%s.\n",
1374 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1378 PK11_SETATTRS( attrs[0], CKA_CLASS, &objClass, sizeof(objClass) );
1379 PK11_SETATTRS( attrs[1], CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) );
1380 PK11_SETATTRS( attrs[2], CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 );
1382 key = PK11_CreateGenericObject( slot, attrs, 3, PR_FALSE /* isPerm */ );
1385 PRErrorCode errcode = PR_GetError();
1386 Debug( LDAP_DEBUG_ANY,
1387 "TLS: could not add the private key '%s' - error %d:%s.\n",
1388 filename, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1391 tlsm_add_pem_obj( ctx, key );
1394 /* When adding an encrypted key the PKCS#11 will be set as removed */
1395 /* This will force the token to be seen as re-inserted */
1396 SECMOD_WaitForAnyTokenEvent( pem_module, 0, 0 );
1397 PK11_IsPresent( slot );
1400 PK11_FreeSlot( slot );
1406 tlsm_init_ca_certs( tlsm_ctx *ctx, const char *cacertfile, const char *cacertdir )
1408 PRBool isca = PR_TRUE;
1409 PRStatus status = PR_SUCCESS;
1410 PRErrorCode errcode = PR_SUCCESS;
1412 if ( !cacertfile && !cacertdir ) {
1413 /* no checking - not good, but allowed */
1418 int rc = tlsm_add_cert_from_file( ctx, cacertfile, isca );
1420 errcode = PR_GetError();
1421 Debug( LDAP_DEBUG_ANY,
1422 "TLS: %s is not a valid CA certificate file - error %d:%s.\n",
1423 cacertfile, errcode,
1424 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1425 /* failure with cacertfile is a hard failure even if cacertdir is
1426 also specified and contains valid CA cert files */
1427 status = PR_FAILURE;
1429 Debug( LDAP_DEBUG_TRACE,
1430 "TLS: loaded CA certificate file %s.\n",
1435 /* if cacertfile above failed, we will return failure, even
1436 if there is a valid CA cert in cacertdir - but we still
1437 process cacertdir in case the user has enabled trace level
1438 debugging so they can see the processing for cacertdir too */
1439 /* any cacertdir failures are "soft" failures - if the user specifies
1440 no cert checking, then we allow the tls/ssl to continue, no matter
1441 what was specified for cacertdir, or the contents of the directory
1442 - this is different behavior than that of cacertfile */
1447 PRStatus fistatus = PR_FAILURE;
1449 memset( &fi, 0, sizeof(fi) );
1450 fistatus = PR_GetFileInfo( cacertdir, &fi );
1451 if ( PR_SUCCESS != fistatus) {
1452 errcode = PR_GetError();
1453 Debug( LDAP_DEBUG_ANY,
1454 "TLS: could not get info about the CA certificate directory %s - error %d:%s.\n",
1456 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1460 if ( fi.type != PR_FILE_DIRECTORY ) {
1461 Debug( LDAP_DEBUG_ANY,
1462 "TLS: error: the CA certificate directory %s is not a directory.\n",
1467 dir = PR_OpenDir( cacertdir );
1468 if ( NULL == dir ) {
1469 errcode = PR_GetError();
1470 Debug( LDAP_DEBUG_ANY,
1471 "TLS: could not open the CA certificate directory %s - error %d:%s.\n",
1473 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1478 entry = PR_ReadDir( dir, PR_SKIP_BOTH | PR_SKIP_HIDDEN );
1479 if ( ( NULL != entry ) && ( NULL != entry->name ) ) {
1480 char *fullpath = NULL;
1483 ptr = PL_strrstr( entry->name, PEM_CA_HASH_FILE_SUFFIX );
1484 if ( ( ptr == NULL ) || ( *(ptr + PEM_CA_HASH_FILE_SUFFIX_LEN) != '\0' ) ) {
1485 Debug( LDAP_DEBUG_TRACE,
1486 "TLS: file %s does not end in [%s] - does not appear to be a CA certificate "
1487 "directory file with a properly hashed file name - skipping.\n",
1488 entry->name, PEM_CA_HASH_FILE_SUFFIX, 0 );
1491 fullpath = PR_smprintf( "%s/%s", cacertdir, entry->name );
1492 if ( !tlsm_add_cert_from_file( ctx, fullpath, isca ) ) {
1493 Debug( LDAP_DEBUG_TRACE,
1494 "TLS: loaded CA certificate file %s from CA certificate directory %s.\n",
1495 fullpath, cacertdir, 0 );
1497 errcode = PR_GetError();
1498 Debug( LDAP_DEBUG_TRACE,
1499 "TLS: %s is not a valid CA certificate file - error %d:%s.\n",
1501 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1503 PR_smprintf_free( fullpath );
1505 } while ( NULL != entry );
1509 if ( status != PR_SUCCESS ) {
1517 * NSS supports having multiple cert/key databases in the same
1518 * directory, each one having a unique string prefix e.g.
1519 * slapd-01-cert8.db - the prefix here is "slapd-01-"
1520 * this function examines the given certdir - if it looks like
1521 * /path/to/directory/prefix it will return the
1522 * /path/to/directory part in realcertdir, and the prefix in prefix
1525 tlsm_get_certdb_prefix( const char *certdir, char **realcertdir, char **prefix )
1527 char sep = PR_GetDirectorySeparator();
1529 struct PRFileInfo prfi;
1532 *realcertdir = (char *)certdir; /* default is the one passed in */
1534 /* if certdir is not given, just return */
1539 prc = PR_GetFileInfo( certdir, &prfi );
1540 /* if certdir exists (file or directory) then it cannot specify a prefix */
1541 if ( prc == PR_SUCCESS ) {
1545 /* if certdir was given, and there is a '/' in certdir, see if there
1546 is anything after the last '/' - if so, assume it is the prefix */
1547 if ( ( ( ptr = strrchr( certdir, sep ) ) ) && *(ptr+1) ) {
1548 *realcertdir = PL_strndup( certdir, ptr-certdir );
1549 *prefix = PL_strdup( ptr+1 );
1556 * Currently mutiple MozNSS contexts share one certificate storage. When the
1557 * certdb is being opened, only new certificates are added to the storage.
1558 * When different databases are used, conflicting nicknames make the
1559 * certificate lookup by the nickname impossible. In addition a token
1560 * description might be prepended in certain conditions.
1562 * In order to make the certificate lookup by nickname possible, we explicitly
1563 * open each database using SECMOD_OpenUserDB and assign it the token
1564 * description. The token description is generated using ctx->tc_unique value,
1565 * which is unique for each context.
1567 static PK11SlotInfo *
1568 tlsm_init_open_certdb(tlsm_ctx *ctx, const char *dbdir, const char *prefix)
1570 PK11SlotInfo *slot = NULL;
1571 char *token_desc = NULL;
1572 char *config = NULL;
1574 token_desc = PR_smprintf(TLSM_CERTDB_DESC_FMT, ctx->tc_unique);
1575 config = PR_smprintf("configDir='%s' tokenDescription='%s' certPrefix='%s' keyPrefix='%s' flags=readOnly",
1576 dbdir, token_desc, prefix, prefix);
1577 Debug(LDAP_DEBUG_TRACE, "TLS: certdb config: %s\n", config, 0, 0);
1579 slot = SECMOD_OpenUserDB(config);
1581 PRErrorCode errcode = PR_GetError();
1582 Debug(LDAP_DEBUG_TRACE, "TLS: cannot open certdb '%s', error %d:%s\n", dbdir, errcode,
1583 PR_ErrorToString(errcode, PR_LANGUAGE_I_DEFAULT));
1587 PR_smprintf_free(token_desc);
1589 PR_smprintf_free(config);
1595 * This is the part of the init we defer until we get the
1596 * actual security configuration information. This is
1597 * only called once, protected by a PRCallOnce
1598 * NOTE: This must be done before the first call to SSL_ImportFD,
1599 * especially the setting of the policy
1600 * NOTE: This must be called after fork()
1603 tlsm_deferred_init( void *arg )
1605 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1606 struct ldaptls *lt = ctx->tc_config;
1607 const char *securitydirs[3];
1610 PRErrorCode errcode = 1;
1611 #ifdef HAVE_NSS_INITCONTEXT
1612 NSSInitParameters initParams;
1613 NSSInitContext *initctx = NULL;
1614 PK11SlotInfo *certdb_slot = NULL;
1619 #ifdef HAVE_SECMOD_RESTARTMODULES
1620 /* NSS enforces the pkcs11 requirement that modules should be unloaded after
1621 a fork() - since there is no portable way to determine if NSS has been
1622 already initialized in a parent process, we just call SECMOD_RestartModules
1623 with force == FALSE - if the module has been unloaded due to a fork, it will
1624 be reloaded, otherwise, it is a no-op */
1625 if ( SECFailure == ( rc = SECMOD_RestartModules(PR_FALSE /* do not force */) ) ) {
1626 errcode = PORT_GetError();
1627 if ( errcode != SEC_ERROR_NOT_INITIALIZED ) {
1628 Debug( LDAP_DEBUG_TRACE,
1629 "TLS: could not restart the security modules: %d:%s\n",
1630 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1637 #ifdef HAVE_NSS_INITCONTEXT
1638 memset( &initParams, 0, sizeof( initParams ) );
1639 initParams.length = sizeof( initParams );
1640 #endif /* HAVE_NSS_INITCONTEXT */
1642 #ifdef LDAP_R_COMPILE
1643 if ( PR_CallOnce( &tlsm_init_mutex_callonce, tlsm_thr_init_callonce ) ) {
1646 #endif /* LDAP_R_COMPILE */
1648 #ifndef HAVE_NSS_INITCONTEXT
1649 if ( !NSS_IsInitialized() ) {
1650 #endif /* HAVE_NSS_INITCONTEXT */
1652 MOZNSS_DIR will override everything else - you can
1653 always set MOZNSS_DIR to force the use of this
1655 If using MOZNSS, specify the location of the moznss db dir
1656 in the cacertdir directive of the OpenLDAP configuration.
1657 DEFAULT_MOZNSS_DIR will only be used if the code cannot
1658 find a security dir to use based on the current
1662 securitydirs[nn++] = PR_GetEnv( "MOZNSS_DIR" );
1663 securitydirs[nn++] = lt->lt_cacertdir;
1664 securitydirs[nn++] = PR_GetEnv( "DEFAULT_MOZNSS_DIR" );
1665 for ( ii = 0; !done && ( ii < nn ); ++ii ) {
1666 char *realcertdir = NULL;
1667 const char *defprefix = "";
1668 char *prefix = (char *)defprefix;
1669 const char *securitydir = securitydirs[ii];
1670 if ( NULL == securitydir ) {
1674 tlsm_get_certdb_prefix( securitydir, &realcertdir, &prefix );
1675 LDAP_MUTEX_LOCK( &tlsm_init_mutex );
1677 /* initialize only moddb; certdb will be initialized explicitly */
1678 #ifdef HAVE_NSS_INITCONTEXT
1679 #ifdef INITCONTEXT_HACK
1680 if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
1681 rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
1683 initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
1684 &initParams, NSS_INIT_READONLY|NSS_INIT_NOCERTDB );
1687 initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
1688 &initParams, NSS_INIT_READONLY|NSS_INIT_NOCERTDB );
1692 if (initctx != NULL) {
1693 certdb_slot = tlsm_init_open_certdb(ctx, realcertdir, prefix);
1696 ctx->tc_initctx = initctx;
1697 ctx->tc_certdb_slot = certdb_slot;
1699 NSS_ShutdownContext(initctx);
1704 rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
1707 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
1709 if ( rc != SECSuccess ) {
1710 errcode = PORT_GetError();
1711 if ( securitydirs[ii] != lt->lt_cacertdir) {
1712 Debug( LDAP_DEBUG_TRACE,
1713 "TLS: could not initialize moznss using security dir %s prefix %s - error %d.\n",
1714 realcertdir, prefix, errcode );
1718 Debug( LDAP_DEBUG_TRACE, "TLS: using moznss security dir %s prefix %s.\n",
1719 realcertdir, prefix, 0 );
1723 if ( realcertdir != securitydir ) {
1724 PL_strfree( realcertdir );
1726 if ( prefix != defprefix ) {
1727 PL_strfree( prefix );
1731 if ( errcode ) { /* no moznss db found, or not using moznss db */
1732 LDAP_MUTEX_LOCK( &tlsm_init_mutex );
1733 #ifdef HAVE_NSS_INITCONTEXT
1734 int flags = NSS_INIT_READONLY|NSS_INIT_NOCERTDB|NSS_INIT_NOMODDB;
1735 #ifdef INITCONTEXT_HACK
1736 if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
1737 rc = NSS_NoDB_Init( NULL );
1739 initctx = NSS_InitContext( CERTDB_NONE, PREFIX_NONE, PREFIX_NONE, SECMOD_DB,
1740 &initParams, flags );
1741 rc = (initctx == NULL) ? SECFailure : SECSuccess;
1744 initctx = NSS_InitContext( CERTDB_NONE, PREFIX_NONE, PREFIX_NONE, SECMOD_DB,
1745 &initParams, flags );
1747 ctx->tc_initctx = initctx;
1754 rc = NSS_NoDB_Init( NULL );
1756 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
1757 if ( rc != SECSuccess ) {
1758 errcode = PORT_GetError();
1759 Debug( LDAP_DEBUG_ANY,
1760 "TLS: could not initialize moznss - error %d:%s.\n",
1761 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1766 if ( errcode || lt->lt_cacertfile ) {
1767 /* initialize the PEM module */
1768 LDAP_MUTEX_LOCK( &tlsm_init_mutex );
1769 if ( tlsm_init_pem_module() ) {
1770 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
1771 int pem_errcode = PORT_GetError();
1772 Debug( LDAP_DEBUG_ANY,
1773 "TLS: could not initialize moznss PEM module - error %d:%s.\n",
1774 pem_errcode, PR_ErrorToString( pem_errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1776 if ( errcode ) /* PEM is required */
1779 } else if ( !errcode ) {
1780 tlsm_init_ca_certs( ctx, lt->lt_cacertfile, NULL );
1782 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
1786 if ( tlsm_init_ca_certs( ctx, lt->lt_cacertfile, lt->lt_cacertdir ) ) {
1787 /* if we tried to use lt->lt_cacertdir as an NSS key/cert db, errcode
1788 will be a value other than 1 - print an error message so that the
1789 user will know that failed too */
1790 if ( ( errcode != 1 ) && ( lt->lt_cacertdir ) ) {
1791 char *realcertdir = NULL;
1792 char *prefix = NULL;
1793 tlsm_get_certdb_prefix( lt->lt_cacertdir, &realcertdir, &prefix );
1794 Debug( LDAP_DEBUG_TRACE,
1795 "TLS: could not initialize moznss using security dir %s prefix %s - error %d.\n",
1796 realcertdir, prefix ? prefix : "", errcode );
1797 if ( realcertdir != lt->lt_cacertdir ) {
1798 PL_strfree( realcertdir );
1800 PL_strfree( prefix );
1805 ctx->tc_using_pem = PR_TRUE;
1808 NSS_SetDomesticPolicy();
1810 PK11_SetPasswordFunc( tlsm_pin_prompt );
1812 /* register cleanup function */
1813 if ( tlsm_register_nss_shutdown() ) {
1814 errcode = PORT_GetError();
1815 Debug( LDAP_DEBUG_ANY,
1816 "TLS: could not register NSS shutdown function: %d:%s\n",
1817 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1821 if ( ctx->tc_is_server ) {
1822 LDAP_MUTEX_LOCK( &tlsm_init_mutex );
1823 /* 0 means use the defaults here */
1824 SSL_ConfigServerSessionIDCache( 0, 0, 0, NULL );
1825 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
1828 #ifndef HAVE_NSS_INITCONTEXT
1830 #endif /* HAVE_NSS_INITCONTEXT */
1836 * Find and verify the certificate.
1837 * The key is loaded and stored in ctx->tc_private_key
1840 tlsm_find_and_verify_cert_key(tlsm_ctx *ctx)
1842 SECCertificateUsage certUsage;
1848 if (tlsm_ctx_load_private_key(ctx))
1851 pin_arg = SSL_RevealPinArg(ctx->tc_model);
1852 certUsage = ctx->tc_is_server ? certificateUsageSSLServer : certificateUsageSSLClient;
1853 checkSig = ctx->tc_verify_cert ? PR_TRUE : PR_FALSE;
1854 if ( ctx->tc_warn_only )
1857 errorToIgnore = SEC_ERROR_UNKNOWN_ISSUER; /* may not have a CA cert */
1859 status = tlsm_verify_cert( ctx->tc_certdb, ctx->tc_certificate, pin_arg,
1860 checkSig, certUsage, errorToIgnore );
1862 return status == SECSuccess ? 0 : -1;
1866 tlsm_get_client_auth_data( void *arg, PRFileDesc *fd,
1867 CERTDistNames *caNames, CERTCertificate **pRetCert,
1868 SECKEYPrivateKey **pRetKey )
1870 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1873 *pRetCert = CERT_DupCertificate(ctx->tc_certificate);
1876 *pRetKey = SECKEY_CopyPrivateKey(ctx->tc_private_key);
1882 * ctx must have a tc_model that is valid
1885 tlsm_clientauth_init( tlsm_ctx *ctx )
1887 SECStatus status = SECFailure;
1891 saveval = ctx->tc_warn_only;
1892 ctx->tc_warn_only = PR_TRUE;
1893 rc = tlsm_find_and_verify_cert_key(ctx);
1894 ctx->tc_warn_only = saveval;
1896 Debug( LDAP_DEBUG_ANY,
1897 "TLS: error: unable to set up client certificate authentication for "
1898 "certificate named %s\n", tlsm_ctx_subject_name(ctx), 0, 0 );
1902 status = SSL_GetClientAuthDataHook( ctx->tc_model,
1903 tlsm_get_client_auth_data,
1906 return ( status == SECSuccess ? 0 : -1 );
1910 * Tear down the TLS subsystem. Should only be called once.
1913 tlsm_destroy( void )
1915 #ifdef LDAP_R_COMPILE
1916 ldap_pvt_thread_mutex_destroy( &tlsm_ctx_count_mutex );
1917 ldap_pvt_thread_mutex_destroy( &tlsm_init_mutex );
1918 ldap_pvt_thread_mutex_destroy( &tlsm_pem_mutex );
1922 static struct ldaptls *
1923 tlsm_copy_config ( const struct ldaptls *config )
1925 struct ldaptls *copy;
1929 copy = LDAP_MALLOC(sizeof(*copy));
1933 memset(copy, 0, sizeof(*copy));
1935 if (config->lt_certfile)
1936 copy->lt_certfile = LDAP_STRDUP(config->lt_certfile);
1937 if (config->lt_keyfile)
1938 copy->lt_keyfile = LDAP_STRDUP(config->lt_keyfile);
1939 if (config->lt_dhfile)
1940 copy->lt_dhfile = LDAP_STRDUP(config->lt_dhfile);
1941 if (config->lt_cacertfile)
1942 copy->lt_cacertfile = LDAP_STRDUP(config->lt_cacertfile);
1943 if (config->lt_cacertdir)
1944 copy->lt_cacertdir = LDAP_STRDUP(config->lt_cacertdir);
1945 if (config->lt_ciphersuite)
1946 copy->lt_ciphersuite = LDAP_STRDUP(config->lt_ciphersuite);
1947 if (config->lt_crlfile)
1948 copy->lt_crlfile = LDAP_STRDUP(config->lt_crlfile);
1949 if (config->lt_randfile)
1950 copy->lt_randfile = LDAP_STRDUP(config->lt_randfile);
1952 copy->lt_protocol_min = config->lt_protocol_min;
1958 tlsm_free_config ( struct ldaptls *config )
1962 if (config->lt_certfile)
1963 LDAP_FREE(config->lt_certfile);
1964 if (config->lt_keyfile)
1965 LDAP_FREE(config->lt_keyfile);
1966 if (config->lt_dhfile)
1967 LDAP_FREE(config->lt_dhfile);
1968 if (config->lt_cacertfile)
1969 LDAP_FREE(config->lt_cacertfile);
1970 if (config->lt_cacertdir)
1971 LDAP_FREE(config->lt_cacertdir);
1972 if (config->lt_ciphersuite)
1973 LDAP_FREE(config->lt_ciphersuite);
1974 if (config->lt_crlfile)
1975 LDAP_FREE(config->lt_crlfile);
1976 if (config->lt_randfile)
1977 LDAP_FREE(config->lt_randfile);
1983 tlsm_ctx_new ( struct ldapoptions *lo )
1987 ctx = LDAP_MALLOC( sizeof (*ctx) );
1990 #ifdef LDAP_R_COMPILE
1991 ldap_pvt_thread_mutex_init( &ctx->tc_refmutex );
1993 LDAP_MUTEX_LOCK( &tlsm_ctx_count_mutex );
1994 ctx->tc_unique = tlsm_ctx_count++;
1995 LDAP_MUTEX_UNLOCK( &tlsm_ctx_count_mutex );
1996 ctx->tc_config = NULL; /* populated later by tlsm_ctx_init */
1997 ctx->tc_certdb = NULL;
1998 ctx->tc_certdb_slot = NULL;
1999 ctx->tc_certificate = NULL;
2000 ctx->tc_private_key = NULL;
2001 ctx->tc_pin_file = NULL;
2002 ctx->tc_model = NULL;
2003 memset(&ctx->tc_callonce, 0, sizeof(ctx->tc_callonce));
2004 ctx->tc_require_cert = lo->ldo_tls_require_cert;
2005 ctx->tc_verify_cert = PR_FALSE;
2006 ctx->tc_using_pem = PR_FALSE;
2007 #ifdef HAVE_NSS_INITCONTEXT
2008 ctx->tc_initctx = NULL;
2009 #endif /* HAVE_NSS_INITCONTEXT */
2010 ctx->tc_pem_objs = NULL;
2011 ctx->tc_n_pem_objs = 0;
2012 ctx->tc_warn_only = PR_FALSE;
2014 return (tls_ctx *)ctx;
2018 tlsm_ctx_ref( tls_ctx *ctx )
2020 tlsm_ctx *c = (tlsm_ctx *)ctx;
2021 LDAP_MUTEX_LOCK( &c->tc_refmutex );
2023 LDAP_MUTEX_UNLOCK( &c->tc_refmutex );
2027 tlsm_ctx_free ( tls_ctx *ctx )
2029 tlsm_ctx *c = (tlsm_ctx *)ctx;
2034 LDAP_MUTEX_LOCK( &c->tc_refmutex );
2035 refcount = --c->tc_refcnt;
2036 LDAP_MUTEX_UNLOCK( &c->tc_refmutex );
2040 PR_Close( c->tc_model );
2041 if (c->tc_certificate)
2042 CERT_DestroyCertificate(c->tc_certificate);
2043 if (c->tc_private_key)
2044 SECKEY_DestroyPrivateKey(c->tc_private_key);
2045 c->tc_certdb = NULL; /* if not the default, may have to clean up */
2046 if ( c->tc_certdb_slot ) {
2047 if ( SECMOD_CloseUserDB( c->tc_certdb_slot ) ) {
2048 PRErrorCode errcode = PR_GetError();
2049 Debug( LDAP_DEBUG_ANY,
2050 "TLS: could not close certdb slot - error %d:%s.\n",
2051 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
2054 PL_strfree( c->tc_pin_file );
2055 c->tc_pin_file = NULL;
2056 tlsm_free_pem_objs( c );
2057 #ifdef HAVE_NSS_INITCONTEXT
2058 if ( c->tc_initctx ) {
2059 LDAP_MUTEX_LOCK( &tlsm_init_mutex );
2060 if ( NSS_ShutdownContext( c->tc_initctx ) ) {
2061 PRErrorCode errcode = PR_GetError();
2062 Debug( LDAP_DEBUG_ANY,
2063 "TLS: could not shutdown NSS - error %d:%s.\n",
2064 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
2066 LDAP_MUTEX_UNLOCK( &tlsm_init_mutex );
2068 c->tc_initctx = NULL;
2069 #endif /* HAVE_NSS_INITCONTEXT */
2070 #ifdef LDAP_R_COMPILE
2071 ldap_pvt_thread_mutex_destroy( &c->tc_refmutex );
2075 tlsm_free_config( c->tc_config );
2081 * initialize a new TLS context
2084 tlsm_ctx_init( struct ldapoptions *lo, struct ldaptls *lt, int is_server )
2086 tlsm_ctx *ctx = (tlsm_ctx *)lo->ldo_tls_ctx;
2087 ctx->tc_config = tlsm_copy_config(lt);
2088 ctx->tc_is_server = is_server;
2094 tlsm_deferred_ctx_init( void *arg )
2096 tlsm_ctx *ctx = (tlsm_ctx *)arg;
2097 PRBool sslv2 = PR_FALSE;
2098 PRBool sslv3 = PR_TRUE;
2099 PRBool tlsv1 = PR_TRUE;
2100 PRBool request_cert = PR_FALSE;
2101 PRInt32 require_cert = PR_FALSE;
2105 if ( tlsm_deferred_init( ctx ) ) {
2106 Debug( LDAP_DEBUG_ANY,
2107 "TLS: could not perform TLS system initialization.\n",
2112 ctx->tc_certdb = CERT_GetDefaultCertDB(); /* If there is ever a per-context db, change this */
2114 fd = PR_CreateIOLayerStub( tlsm_layer_id, &tlsm_PR_methods );
2116 ctx->tc_model = SSL_ImportFD( NULL, fd );
2119 if ( !ctx->tc_model ) {
2120 PRErrorCode err = PR_GetError();
2121 Debug( LDAP_DEBUG_ANY,
2122 "TLS: could perform TLS socket I/O layer initialization - error %d:%s.\n",
2123 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2131 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_SECURITY, PR_TRUE ) ) {
2132 Debug( LDAP_DEBUG_ANY,
2133 "TLS: could not set secure mode on.\n",
2138 lt = ctx->tc_config;
2140 /* default is sslv3 and tlsv1 */
2141 if ( lt->lt_protocol_min ) {
2142 if ( lt->lt_protocol_min > LDAP_OPT_X_TLS_PROTOCOL_SSL3 ) {
2144 } else if ( lt->lt_protocol_min <= LDAP_OPT_X_TLS_PROTOCOL_SSL2 ) {
2146 Debug( LDAP_DEBUG_ANY,
2147 "TLS: warning: minimum TLS protocol level set to "
2148 "include SSLv2 - SSLv2 is insecure - do not use\n", 0, 0, 0 );
2151 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_SSL2, sslv2 ) ) {
2152 Debug( LDAP_DEBUG_ANY,
2153 "TLS: could not set SSLv2 mode on.\n",
2157 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_SSL3, sslv3 ) ) {
2158 Debug( LDAP_DEBUG_ANY,
2159 "TLS: could not set SSLv3 mode on.\n",
2163 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_TLS, tlsv1 ) ) {
2164 Debug( LDAP_DEBUG_ANY,
2165 "TLS: could not set TLSv1 mode on.\n",
2170 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_HANDSHAKE_AS_CLIENT, !ctx->tc_is_server ) ) {
2171 Debug( LDAP_DEBUG_ANY,
2172 "TLS: could not set handshake as client.\n",
2176 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_HANDSHAKE_AS_SERVER, ctx->tc_is_server ) ) {
2177 Debug( LDAP_DEBUG_ANY,
2178 "TLS: could not set handshake as server.\n",
2183 if ( lt->lt_ciphersuite ) {
2184 if ( tlsm_parse_ciphers( ctx, lt->lt_ciphersuite ) ) {
2185 Debug( LDAP_DEBUG_ANY,
2186 "TLS: could not set cipher list %s.\n",
2187 lt->lt_ciphersuite, 0, 0 );
2190 } else if ( tlsm_parse_ciphers( ctx, "DEFAULT" ) ) {
2191 Debug( LDAP_DEBUG_ANY,
2192 "TLS: could not set cipher list DEFAULT.\n",
2197 if ( !ctx->tc_require_cert ) {
2198 ctx->tc_verify_cert = PR_FALSE;
2199 } else if ( !ctx->tc_is_server ) {
2200 request_cert = PR_TRUE;
2201 require_cert = SSL_REQUIRE_NO_ERROR;
2202 if ( ctx->tc_require_cert == LDAP_OPT_X_TLS_DEMAND ||
2203 ctx->tc_require_cert == LDAP_OPT_X_TLS_HARD ) {
2204 require_cert = SSL_REQUIRE_ALWAYS;
2206 if ( ctx->tc_require_cert != LDAP_OPT_X_TLS_ALLOW )
2207 ctx->tc_verify_cert = PR_TRUE;
2208 } else { /* server */
2209 /* server does not request certs by default */
2210 /* if allow - client may send cert, server will ignore if errors */
2211 /* if try - client may send cert, server will error if bad cert */
2212 /* if hard or demand - client must send cert, server will error if bad cert */
2213 request_cert = PR_TRUE;
2214 require_cert = SSL_REQUIRE_NO_ERROR;
2215 if ( ctx->tc_require_cert == LDAP_OPT_X_TLS_DEMAND ||
2216 ctx->tc_require_cert == LDAP_OPT_X_TLS_HARD ) {
2217 require_cert = SSL_REQUIRE_ALWAYS;
2219 if ( ctx->tc_require_cert != LDAP_OPT_X_TLS_ALLOW ) {
2220 ctx->tc_verify_cert = PR_TRUE;
2222 ctx->tc_warn_only = PR_TRUE;
2226 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_REQUEST_CERTIFICATE, request_cert ) ) {
2227 Debug( LDAP_DEBUG_ANY,
2228 "TLS: could not set request certificate mode.\n",
2233 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_REQUIRE_CERTIFICATE, require_cert ) ) {
2234 Debug( LDAP_DEBUG_ANY,
2235 "TLS: could not set require certificate mode.\n",
2240 /* set up our cert and key, if any */
2241 if ( lt->lt_certfile ) {
2242 /* if using the PEM module, load the PEM file specified by lt_certfile */
2243 /* otherwise, assume this is the name of a cert already in the db */
2244 if ( ctx->tc_using_pem ) {
2245 /* this sets ctx->tc_certificate to the correct value */
2246 int rc = tlsm_add_cert_from_file( ctx, lt->lt_certfile, PR_FALSE );
2253 if (ctx->tc_certdb_slot) {
2254 tmp_certname = PR_smprintf(TLSM_CERTDB_DESC_FMT ":%s", ctx->tc_unique, lt->lt_certfile);
2256 tmp_certname = PR_smprintf("%s", lt->lt_certfile);
2259 ctx->tc_certificate = PK11_FindCertFromNickname(tmp_certname, SSL_RevealPinArg(ctx->tc_model));
2260 PR_smprintf_free(tmp_certname);
2262 if (!ctx->tc_certificate) {
2263 PRErrorCode errcode = PR_GetError();
2264 Debug( LDAP_DEBUG_ANY,
2265 "TLS: error: the certificate '%s' could not be found in the database - error %d:%s.\n",
2266 lt->lt_certfile, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
2272 if ( lt->lt_keyfile ) {
2273 /* if using the PEM module, load the PEM file specified by lt_keyfile */
2274 /* otherwise, assume this is the pininfo for the key */
2275 if ( ctx->tc_using_pem ) {
2276 int rc = tlsm_add_key_from_file( ctx, lt->lt_keyfile );
2281 PL_strfree( ctx->tc_pin_file );
2282 ctx->tc_pin_file = PL_strdup( lt->lt_keyfile );
2286 /* Set up callbacks for use by clients */
2287 if ( !ctx->tc_is_server ) {
2288 if ( SSL_OptionSet( ctx->tc_model, SSL_NO_CACHE, PR_TRUE ) != SECSuccess ) {
2289 PRErrorCode err = PR_GetError();
2290 Debug( LDAP_DEBUG_ANY,
2291 "TLS: error: could not set nocache option for moznss - error %d:%s\n",
2292 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2296 if ( SSL_BadCertHook( ctx->tc_model, tlsm_bad_cert_handler, ctx ) != SECSuccess ) {
2297 PRErrorCode err = PR_GetError();
2298 Debug( LDAP_DEBUG_ANY,
2299 "TLS: error: could not set bad cert handler for moznss - error %d:%s\n",
2300 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2305 since a cert has been specified, assume the client wants to do cert auth
2307 if ( ctx->tc_certificate ) {
2308 if ( tlsm_authenticate_to_slot( ctx, ctx->tc_certificate->slot ) ) {
2309 Debug( LDAP_DEBUG_ANY,
2310 "TLS: error: unable to authenticate to the security device for certificate '%s'\n",
2311 tlsm_ctx_subject_name(ctx), 0, 0 );
2314 if ( tlsm_clientauth_init( ctx ) ) {
2315 Debug( LDAP_DEBUG_ANY,
2316 "TLS: error: unable to set up client certificate authentication using '%s'\n",
2317 tlsm_ctx_subject_name(ctx), 0, 0 );
2321 } else { /* set up secure server */
2325 /* must have a certificate for the server to use */
2326 if ( !ctx->tc_certificate ) {
2327 Debug( LDAP_DEBUG_ANY,
2328 "TLS: error: no server certificate: must specify a certificate for the server to use\n",
2333 /* authenticate to the server's token - this will do nothing
2334 if the key/cert db is not password protected */
2335 if ( tlsm_authenticate_to_slot( ctx, ctx->tc_certificate->slot ) ) {
2336 Debug( LDAP_DEBUG_ANY,
2337 "TLS: error: unable to authenticate to the security device for certificate '%s'\n",
2338 tlsm_ctx_subject_name(ctx), 0, 0 );
2342 if (tlsm_find_and_verify_cert_key(ctx)) {
2343 Debug( LDAP_DEBUG_ANY,
2344 "TLS: error: unable to find and verify server's cert and key for certificate %s\n",
2345 tlsm_ctx_subject_name(ctx), 0, 0 );
2349 /* configure the socket to be a secure server socket */
2350 certKEA = NSS_FindCertKEAType( ctx->tc_certificate );
2351 status = SSL_ConfigSecureServer( ctx->tc_model, ctx->tc_certificate, ctx->tc_private_key, certKEA );
2353 if ( SECSuccess != status ) {
2354 PRErrorCode err = PR_GetError();
2355 Debug( LDAP_DEBUG_ANY,
2356 "TLS: error: unable to configure secure server using certificate '%s' - error %d:%s\n",
2357 tlsm_ctx_subject_name(ctx), err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) );
2362 /* Callback for authenticating certificate */
2363 if ( SSL_AuthCertificateHook( ctx->tc_model, tlsm_auth_cert_handler,
2364 ctx ) != SECSuccess ) {
2365 PRErrorCode err = PR_GetError();
2366 Debug( LDAP_DEBUG_ANY,
2367 "TLS: error: could not set auth cert handler for moznss - error %d:%s\n",
2368 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2372 if ( SSL_HandshakeCallback( ctx->tc_model, tlsm_handshake_complete_cb, ctx ) ) {
2373 PRErrorCode err = PR_GetError();
2374 Debug( LDAP_DEBUG_ANY,
2375 "TLS: error: could not set handshake callback for moznss - error %d:%s\n",
2376 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2380 tlsm_free_config( ctx->tc_config );
2381 ctx->tc_config = NULL;
2387 tlsm_session *session;
2388 Sockbuf_IO_Desc *sbiod;
2389 /* there seems to be no portable way to determine if the
2390 sockbuf sd has been set to nonblocking mode - the
2391 call to ber_pvt_socket_set_nonblock() takes place
2392 before the tls socket is set up, so we cannot
2393 intercept that call either.
2394 On systems where fcntl is available, we can just
2395 F_GETFL and test for O_NONBLOCK. On other systems,
2396 we will just see if the IO op returns EAGAIN or EWOULDBLOCK,
2397 and just set this flag */
2400 * NSS tries hard to be backwards compatible with SSLv2 clients, or
2401 * clients that send an SSLv2 client hello. This message is not
2402 * tagged in any way, so NSS has no way to know if the incoming
2403 * message is a valid SSLv2 client hello or just some bogus data
2404 * (or cleartext LDAP). We store the first byte read from the
2405 * client here. The most common case will be a client sending
2406 * LDAP data instead of SSL encrypted LDAP data. This can happen,
2407 * for example, if using ldapsearch -Z - if the starttls fails,
2408 * the client will fallback to plain cleartext LDAP. So if we
2409 * see that the firstbyte is a valid LDAP tag, we can be
2410 * pretty sure this is happening.
2414 * NSS doesn't return SSL_ERROR_WANT_READ, SSL_ERROR_WANT_WRITE, etc.
2415 * when it is blocked, so we have to set a flag in the wrapped send
2416 * and recv calls that tells us what operation NSS was last blocked
2420 #define TLSM_WRITE 2
2424 static struct tls_data *
2425 tlsm_get_pvt_tls_data( PRFileDesc *fd )
2434 myfd = PR_GetIdentitiesLayer( fd, tlsm_layer_id );
2440 p = (struct tls_data *)myfd->secret;
2446 tlsm_is_non_ssl_message( PRFileDesc *fd, ber_tag_t *thebyte )
2451 *thebyte = LBER_DEFAULT;
2454 p = tlsm_get_pvt_tls_data( fd );
2455 if ( p == NULL || p->sbiod == NULL ) {
2459 if ( p->firsttag == LBER_SEQUENCE ) {
2461 *thebyte = p->firsttag;
2469 static tls_session *
2470 tlsm_session_new ( tls_ctx * ctx, int is_server )
2472 tlsm_ctx *c = (tlsm_ctx *)ctx;
2473 tlsm_session *session;
2478 c->tc_is_server = is_server;
2479 status = PR_CallOnceWithArg( &c->tc_callonce, tlsm_deferred_ctx_init, c );
2480 if ( PR_SUCCESS != status ) {
2481 PRErrorCode err = PR_GetError();
2482 Debug( LDAP_DEBUG_ANY,
2483 "TLS: error: could not initialize moznss security context - error %d:%s\n",
2484 err, PR_ErrorToString(err, PR_LANGUAGE_I_DEFAULT), NULL );
2488 fd = PR_CreateIOLayerStub( tlsm_layer_id, &tlsm_PR_methods );
2493 session = SSL_ImportFD( c->tc_model, fd );
2499 rc = SSL_ResetHandshake( session, is_server );
2501 PRErrorCode err = PR_GetError();
2502 Debug( LDAP_DEBUG_TRACE,
2503 "TLS: error: new session - reset handshake failure %d - error %d:%s\n",
2505 err ? PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) : "unknown" );
2507 PR_Close( session );
2511 return (tls_session *)session;
2515 tlsm_session_accept_or_connect( tls_session *session, int is_accept )
2517 tlsm_session *s = (tlsm_session *)session;
2519 const char *op = is_accept ? "accept" : "connect";
2522 LDAP_MUTEX_LOCK( &tlsm_pem_mutex );
2524 rc = SSL_ForceHandshake( s );
2526 LDAP_MUTEX_UNLOCK( &tlsm_pem_mutex );
2529 PRErrorCode err = PR_GetError();
2531 if ( err == PR_WOULD_BLOCK_ERROR ) {
2532 ber_tag_t thetag = LBER_DEFAULT;
2533 /* see if we are blocked because of a bogus packet */
2534 if ( tlsm_is_non_ssl_message( s, &thetag ) ) { /* see if we received a non-SSL message */
2535 Debug( LDAP_DEBUG_ANY,
2536 "TLS: error: %s - error - received non-SSL message [0x%x]\n",
2537 op, (unsigned int)thetag, 0 );
2538 /* reset error to something more descriptive */
2539 PR_SetError( SSL_ERROR_RX_MALFORMED_HELLO_REQUEST, EPROTO );
2542 Debug( LDAP_DEBUG_ANY,
2543 "TLS: error: %s - force handshake failure: errno %d - moznss error %d\n",
2551 tlsm_session_accept( tls_session *session )
2553 return tlsm_session_accept_or_connect( session, 1 );
2557 tlsm_session_connect( LDAP *ld, tls_session *session )
2559 return tlsm_session_accept_or_connect( session, 0 );
2563 tlsm_session_upflags( Sockbuf *sb, tls_session *session, int rc )
2565 int prerror = PR_GetError();
2567 if ( ( prerror == PR_PENDING_INTERRUPT_ERROR ) || ( prerror == PR_WOULD_BLOCK_ERROR ) ) {
2568 tlsm_session *s = (tlsm_session *)session;
2569 struct tls_data *p = tlsm_get_pvt_tls_data( s );
2571 if ( p && ( p->io_flag == TLSM_READ ) ) {
2572 sb->sb_trans_needs_read = 1;
2574 } else if ( p && ( p->io_flag == TLSM_WRITE ) ) {
2575 sb->sb_trans_needs_write = 1;
2584 tlsm_session_errmsg( tls_session *sess, int rc, char *buf, size_t len )
2587 int prerror = PR_GetError();
2589 i = PR_GetErrorTextLength();
2591 char *msg = LDAP_MALLOC( i+1 );
2592 PR_GetErrorText( msg );
2593 memcpy( buf, msg, len );
2596 PR_GetErrorText( buf );
2597 } else if ( prerror ) {
2598 i = PR_snprintf( buf, len, "TLS error %d:%s",
2599 prerror, PR_ErrorToString( prerror, PR_LANGUAGE_I_DEFAULT ) );
2602 return ( i > 0 ) ? buf : NULL;
2606 tlsm_session_my_dn( tls_session *session, struct berval *der_dn )
2608 tlsm_session *s = (tlsm_session *)session;
2609 CERTCertificate *cert;
2611 cert = SSL_LocalCertificate( s );
2612 if (!cert) return LDAP_INVALID_CREDENTIALS;
2614 der_dn->bv_val = (char *)cert->derSubject.data;
2615 der_dn->bv_len = cert->derSubject.len;
2616 CERT_DestroyCertificate( cert );
2621 tlsm_session_peer_dn( tls_session *session, struct berval *der_dn )
2623 tlsm_session *s = (tlsm_session *)session;
2624 CERTCertificate *cert;
2626 cert = SSL_PeerCertificate( s );
2627 if (!cert) return LDAP_INVALID_CREDENTIALS;
2629 der_dn->bv_val = (char *)cert->derSubject.data;
2630 der_dn->bv_len = cert->derSubject.len;
2631 CERT_DestroyCertificate( cert );
2635 /* what kind of hostname were we given? */
2641 tlsm_session_chkhost( LDAP *ld, tls_session *session, const char *name_in )
2643 tlsm_session *s = (tlsm_session *)session;
2644 CERTCertificate *cert;
2645 const char *name, *domain = NULL, *ptr;
2646 int ret, ntype = IS_DNS, nlen, dlen;
2647 #ifdef LDAP_PF_INET6
2648 struct in6_addr addr;
2650 struct in_addr addr;
2655 if( ldap_int_hostname &&
2656 ( !name_in || !strcasecmp( name_in, "localhost" ) ) )
2658 name = ldap_int_hostname;
2662 nlen = strlen( name );
2664 cert = SSL_PeerCertificate( s );
2666 Debug( LDAP_DEBUG_ANY,
2667 "TLS: unable to get peer certificate.\n",
2669 /* if this was a fatal condition, things would have
2670 * aborted long before now.
2672 return LDAP_SUCCESS;
2675 #ifdef LDAP_PF_INET6
2676 if (inet_pton(AF_INET6, name, &addr)) {
2680 if ((ptr = strrchr(name, '.')) && isdigit((unsigned char)ptr[1])) {
2681 if (inet_aton(name, (struct in_addr *)&addr)) ntype = IS_IP4;
2683 if (ntype == IS_DNS ) {
2684 domain = strchr( name, '.' );
2686 dlen = nlen - ( domain - name );
2689 ret = LDAP_LOCAL_ERROR;
2691 rv = CERT_FindCertExtension( cert, SEC_OID_X509_SUBJECT_ALT_NAME,
2693 if ( rv == SECSuccess && altname.data ) {
2695 CERTGeneralName *names, *cur;
2697 arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
2699 ret = LDAP_NO_MEMORY;
2703 names = cur = CERT_DecodeAltNameExtension(arena, &altname);
2712 if ( !cur->name.other.len ) continue;
2714 host = (char *)cur->name.other.data;
2715 hlen = cur->name.other.len;
2717 if ( cur->type == certDNSName ) {
2718 if ( ntype != IS_DNS ) continue;
2720 /* is this an exact match? */
2721 if ( nlen == hlen && !strncasecmp( name, host, nlen )) {
2726 /* is this a wildcard match? */
2727 if ( domain && host[0] == '*' && host[1] == '.' &&
2728 dlen == hlen-1 && !strncasecmp( domain, host+1, dlen )) {
2732 } else if ( cur->type == certIPAddress ) {
2733 if ( ntype == IS_DNS ) continue;
2735 #ifdef LDAP_PF_INET6
2736 if (ntype == IS_IP6 && hlen != sizeof(struct in6_addr)) {
2740 if (ntype == IS_IP4 && hlen != sizeof(struct in_addr)) {
2743 if (!memcmp(host, &addr, hlen)) {
2748 } while (( cur = CERT_GetNextGeneralName( cur )) != names );
2750 PORT_FreeArena( arena, PR_FALSE );
2751 SECITEM_FreeItem( &altname, PR_FALSE );
2753 /* no altnames matched, try the CN */
2754 if ( ret != LDAP_SUCCESS ) {
2755 /* find the last CN */
2756 CERTRDN *rdn, **rdns;
2757 CERTAVA *lastava = NULL;
2761 rdns = cert->subject.rdns;
2762 while ( rdns && ( rdn = *rdns++ )) {
2763 CERTAVA *ava, **avas = rdn->avas;
2764 while ( avas && ( ava = *avas++ )) {
2765 if ( CERT_GetAVATag( ava ) == SEC_OID_AVA_COMMON_NAME )
2770 SECItem *av = CERT_DecodeAVAValue( &lastava->value );
2772 if ( av->len == nlen && !strncasecmp( name, (char *)av->data, nlen )) {
2774 } else if ( av->data[0] == '*' && av->data[1] == '.' &&
2775 domain && dlen == av->len - 1 && !strncasecmp( domain,
2776 (char *)(av->data+1), dlen )) {
2780 if ( len >= sizeof(buf) )
2781 len = sizeof(buf)-1;
2782 memcpy( buf, av->data, len );
2785 SECITEM_FreeItem( av, PR_TRUE );
2788 if ( ret != LDAP_SUCCESS ) {
2789 Debug( LDAP_DEBUG_ANY, "TLS: hostname (%s) does not match "
2790 "common name in certificate (%s).\n",
2792 ret = LDAP_CONNECT_ERROR;
2793 if ( ld->ld_error ) {
2794 LDAP_FREE( ld->ld_error );
2796 ld->ld_error = LDAP_STRDUP(
2797 _("TLS: hostname does not match CN in peer certificate"));
2802 CERT_DestroyCertificate( cert );
2807 tlsm_session_strength( tls_session *session )
2809 tlsm_session *s = (tlsm_session *)session;
2812 rc = SSL_SecurityStatus( s, NULL, NULL, NULL, &keySize,
2814 return rc ? 0 : keySize;
2818 * TLS support for LBER Sockbufs
2821 static PRStatus PR_CALLBACK
2822 tlsm_PR_Close(PRFileDesc *fd)
2824 int rc = PR_SUCCESS;
2826 /* we don't need to actually close anything here, just
2827 pop our io layer off the stack */
2828 fd->secret = NULL; /* must have been freed before calling PR_Close */
2830 fd = PR_PopIOLayer( fd, tlsm_layer_id );
2831 /* if we are not the last layer, pass the close along */
2836 rc = fd->methods->close( fd );
2839 /* we are the last layer - just call our dtor */
2846 static PRStatus PR_CALLBACK
2847 tlsm_PR_Shutdown(PRFileDesc *fd, PRShutdownHow how)
2849 int rc = PR_SUCCESS;
2852 rc = PR_Shutdown( fd->lower, how );
2858 static int PR_CALLBACK
2859 tlsm_PR_Recv(PRFileDesc *fd, void *buf, PRInt32 len, PRIntn flags,
2860 PRIntervalTime timeout)
2865 if ( buf == NULL || len <= 0 ) return 0;
2867 p = tlsm_get_pvt_tls_data( fd );
2869 if ( p == NULL || p->sbiod == NULL ) {
2873 rc = LBER_SBIOD_READ_NEXT( p->sbiod, buf, len );
2875 tlsm_map_error( errno );
2876 if ( errno == EAGAIN || errno == EWOULDBLOCK ) {
2877 p->nonblock = PR_TRUE; /* fd is using non-blocking io */
2878 } else if ( errno ) { /* real error */
2879 Debug( LDAP_DEBUG_TRACE,
2880 "TLS: error: tlsm_PR_Recv returned %d - error %d:%s\n",
2881 rc, errno, STRERROR(errno) );
2883 } else if ( ( rc > 0 ) && ( len > 0 ) && ( p->firsttag == LBER_DEFAULT ) ) {
2884 p->firsttag = (ber_tag_t)*((char *)buf);
2886 p->io_flag = TLSM_READ;
2891 static int PR_CALLBACK
2892 tlsm_PR_Send(PRFileDesc *fd, const void *buf, PRInt32 len, PRIntn flags,
2893 PRIntervalTime timeout)
2898 if ( buf == NULL || len <= 0 ) return 0;
2900 p = tlsm_get_pvt_tls_data( fd );
2902 if ( p == NULL || p->sbiod == NULL ) {
2906 rc = LBER_SBIOD_WRITE_NEXT( p->sbiod, (char *)buf, len );
2908 tlsm_map_error( errno );
2909 if ( errno == EAGAIN || errno == EWOULDBLOCK ) {
2910 p->nonblock = PR_TRUE;
2911 } else if ( errno ) { /* real error */
2912 Debug( LDAP_DEBUG_TRACE,
2913 "TLS: error: tlsm_PR_Send returned %d - error %d:%s\n",
2914 rc, errno, STRERROR(errno) );
2917 p->io_flag = TLSM_WRITE;
2922 static int PR_CALLBACK
2923 tlsm_PR_Read(PRFileDesc *fd, void *buf, PRInt32 len)
2925 return tlsm_PR_Recv( fd, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
2928 static int PR_CALLBACK
2929 tlsm_PR_Write(PRFileDesc *fd, const void *buf, PRInt32 len)
2931 return tlsm_PR_Send( fd, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
2934 static PRStatus PR_CALLBACK
2935 tlsm_PR_GetPeerName(PRFileDesc *fd, PRNetAddr *addr)
2940 p = tlsm_get_pvt_tls_data( fd );
2942 if ( p == NULL || p->sbiod == NULL ) {
2945 len = sizeof(PRNetAddr);
2946 return getpeername( p->sbiod->sbiod_sb->sb_fd, (struct sockaddr *)addr, &len );
2949 static PRStatus PR_CALLBACK
2950 tlsm_PR_GetSocketOption(PRFileDesc *fd, PRSocketOptionData *data)
2953 p = tlsm_get_pvt_tls_data( fd );
2955 if ( p == NULL || data == NULL ) {
2959 /* only the nonblocking option is supported at this time
2960 MozNSS SSL code needs it */
2961 if ( data->option != PR_SockOpt_Nonblocking ) {
2962 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2966 int flags = fcntl( p->sbiod->sbiod_sb->sb_fd, F_GETFL );
2967 data->value.non_blocking = (flags & O_NONBLOCK) ? PR_TRUE : PR_FALSE;
2969 data->value.non_blocking = p->nonblock;
2974 static PRStatus PR_CALLBACK
2977 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2981 static PRFileDesc * PR_CALLBACK
2984 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2988 static PRInt16 PR_CALLBACK
2991 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2995 static PRInt32 PR_CALLBACK
2998 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
3002 static PRInt64 PR_CALLBACK
3007 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
3012 static const PRIOMethods tlsm_PR_methods = {
3014 tlsm_PR_Close, /* close */
3015 tlsm_PR_Read, /* read */
3016 tlsm_PR_Write, /* write */
3017 tlsm_PR_i32_unimp, /* available */
3018 tlsm_PR_i64_unimp, /* available64 */
3019 tlsm_PR_prs_unimp, /* fsync */
3020 tlsm_PR_i32_unimp, /* seek */
3021 tlsm_PR_i64_unimp, /* seek64 */
3022 tlsm_PR_prs_unimp, /* fileInfo */
3023 tlsm_PR_prs_unimp, /* fileInfo64 */
3024 tlsm_PR_i32_unimp, /* writev */
3025 tlsm_PR_prs_unimp, /* connect */
3026 tlsm_PR_pfd_unimp, /* accept */
3027 tlsm_PR_prs_unimp, /* bind */
3028 tlsm_PR_prs_unimp, /* listen */
3029 (PRShutdownFN)tlsm_PR_Shutdown, /* shutdown */
3030 tlsm_PR_Recv, /* recv */
3031 tlsm_PR_Send, /* send */
3032 tlsm_PR_i32_unimp, /* recvfrom */
3033 tlsm_PR_i32_unimp, /* sendto */
3034 (PRPollFN)tlsm_PR_i16_unimp, /* poll */
3035 tlsm_PR_i32_unimp, /* acceptread */
3036 tlsm_PR_i32_unimp, /* transmitfile */
3037 tlsm_PR_prs_unimp, /* getsockname */
3038 tlsm_PR_GetPeerName, /* getpeername */
3039 tlsm_PR_i32_unimp, /* getsockopt OBSOLETE */
3040 tlsm_PR_i32_unimp, /* setsockopt OBSOLETE */
3041 tlsm_PR_GetSocketOption, /* getsocketoption */
3042 tlsm_PR_i32_unimp, /* setsocketoption */
3043 tlsm_PR_i32_unimp, /* Send a (partial) file with header/trailer*/
3044 (PRConnectcontinueFN)tlsm_PR_prs_unimp, /* connectcontinue */
3045 tlsm_PR_i32_unimp, /* reserved for future use */
3046 tlsm_PR_i32_unimp, /* reserved for future use */
3047 tlsm_PR_i32_unimp, /* reserved for future use */
3048 tlsm_PR_i32_unimp /* reserved for future use */
3052 * Initialize TLS subsystem. Should be called only once.
3053 * See tlsm_deferred_init for the bulk of the init process
3058 char *nofork = PR_GetEnv( "NSS_STRICT_NOFORK" );
3062 tlsm_layer_id = PR_GetUniqueIdentity( "OpenLDAP" );
3065 * There are some applications that acquire a crypto context in the parent process
3066 * and expect that crypto context to work after a fork(). This does not work
3067 * with NSS using strict PKCS11 compliance mode. We set this environment
3068 * variable here to tell the software encryption module/token to allow crypto
3069 * contexts to persist across a fork(). However, if you are using some other
3070 * module or encryption device that supports and expects full PKCS11 semantics,
3071 * the only recourse is to rewrite the application with atfork() handlers to save
3072 * the crypto context in the parent and restore (and SECMOD_RestartModules) the
3073 * context in the child.
3076 /* will leak one time */
3077 char *noforkenvvar = PL_strdup( "NSS_STRICT_NOFORK=DISABLED" );
3078 PR_SetEnv( noforkenvvar );
3085 tlsm_sb_setup( Sockbuf_IO_Desc *sbiod, void *arg )
3088 tlsm_session *session = arg;
3091 assert( sbiod != NULL );
3093 p = LBER_MALLOC( sizeof( *p ) );
3098 fd = PR_GetIdentitiesLayer( session, tlsm_layer_id );
3104 fd->secret = (PRFilePrivate *)p;
3105 p->session = session;
3107 p->firsttag = LBER_DEFAULT;
3108 sbiod->sbiod_pvt = p;
3113 tlsm_sb_remove( Sockbuf_IO_Desc *sbiod )
3117 assert( sbiod != NULL );
3118 assert( sbiod->sbiod_pvt != NULL );
3120 p = (struct tls_data *)sbiod->sbiod_pvt;
3121 PR_Close( p->session );
3122 LBER_FREE( sbiod->sbiod_pvt );
3123 sbiod->sbiod_pvt = NULL;
3128 tlsm_sb_close( Sockbuf_IO_Desc *sbiod )
3132 assert( sbiod != NULL );
3133 assert( sbiod->sbiod_pvt != NULL );
3135 p = (struct tls_data *)sbiod->sbiod_pvt;
3136 PR_Shutdown( p->session, PR_SHUTDOWN_BOTH );
3141 tlsm_sb_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
3145 assert( sbiod != NULL );
3146 assert( sbiod->sbiod_pvt != NULL );
3148 p = (struct tls_data *)sbiod->sbiod_pvt;
3150 if ( opt == LBER_SB_OPT_GET_SSL ) {
3151 *((tlsm_session **)arg) = p->session;
3154 } else if ( opt == LBER_SB_OPT_DATA_READY ) {
3155 if ( p && ( SSL_DataPending( p->session ) > 0 ) ) {
3161 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
3165 tlsm_sb_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
3171 assert( sbiod != NULL );
3172 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
3174 p = (struct tls_data *)sbiod->sbiod_pvt;
3176 ret = PR_Recv( p->session, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
3178 err = PR_GetError();
3179 if ( err == PR_PENDING_INTERRUPT_ERROR || err == PR_WOULD_BLOCK_ERROR ) {
3180 sbiod->sbiod_sb->sb_trans_needs_read = 1;
3181 sock_errset(EWOULDBLOCK);
3184 sbiod->sbiod_sb->sb_trans_needs_read = 0;
3190 tlsm_sb_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
3196 assert( sbiod != NULL );
3197 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
3199 p = (struct tls_data *)sbiod->sbiod_pvt;
3201 ret = PR_Send( p->session, (char *)buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
3203 err = PR_GetError();
3204 if ( err == PR_PENDING_INTERRUPT_ERROR || err == PR_WOULD_BLOCK_ERROR ) {
3205 sbiod->sbiod_sb->sb_trans_needs_write = 1;
3206 sock_errset(EWOULDBLOCK);
3210 sbiod->sbiod_sb->sb_trans_needs_write = 0;
3215 static Sockbuf_IO tlsm_sbio =
3217 tlsm_sb_setup, /* sbi_setup */
3218 tlsm_sb_remove, /* sbi_remove */
3219 tlsm_sb_ctrl, /* sbi_ctrl */
3220 tlsm_sb_read, /* sbi_read */
3221 tlsm_sb_write, /* sbi_write */
3222 tlsm_sb_close /* sbi_close */
3225 tls_impl ldap_int_tls_impl = {
3237 tlsm_session_connect,
3238 tlsm_session_accept,
3239 tlsm_session_upflags,
3240 tlsm_session_errmsg,
3242 tlsm_session_peer_dn,
3243 tlsm_session_chkhost,
3244 tlsm_session_strength,
3248 #ifdef LDAP_R_COMPILE
3257 #endif /* HAVE_MOZNSS */