1 /* tls_m.c - Handle tls/ssl using Mozilla NSS. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2008-2011 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 PRBool tc_verify_cert;
85 CERTCertDBHandle *tc_certdb;
88 struct ldaptls *tc_config;
91 PRCallOnceType tc_callonce;
93 char *tc_slotname; /* if using pem */
94 #ifdef HAVE_NSS_INITCONTEXT
95 NSSInitContext *tc_initctx; /* the NSS context */
97 PK11GenericObject **tc_pem_objs; /* array of objects to free */
98 int tc_n_pem_objs; /* number of objects */
100 ldap_pvt_thread_mutex_t tc_refmutex;
104 typedef PRFileDesc tlsm_session;
106 static PRDescIdentity tlsm_layer_id;
108 static const PRIOMethods tlsm_PR_methods;
110 #define PEM_LIBRARY "nsspem"
111 #define PEM_MODULE "PEM"
112 /* hash files for use with cacertdir have this file name suffix */
113 #define PEM_CA_HASH_FILE_SUFFIX ".0"
114 #define PEM_CA_HASH_FILE_SUFFIX_LEN 2
116 static SECMODModule *pem_module;
118 #define DEFAULT_TOKEN_NAME "default"
119 /* sprintf format used to create token name */
120 #define TLSM_PEM_TOKEN_FMT "PEM Token #%ld"
122 static int tlsm_slot_count;
124 #define PK11_SETATTRS(x,id,v,l) (x)->type = (id); \
125 (x)->pValue=(v); (x)->ulValueLen = (l);
127 /* forward declaration */
128 static int tlsm_init( void );
130 #ifdef LDAP_R_COMPILE
133 tlsm_thr_init( void )
137 #endif /* LDAP_R_COMPILE */
140 tlsm_dump_cipher_info(PRFileDesc *fd)
144 for (ii = 0; ii < SSL_NumImplementedCiphers; ++ii) {
145 PRInt32 cipher = (PRInt32)SSL_ImplementedCiphers[ii];
146 PRBool enabled = PR_FALSE;
148 SSLCipherSuiteInfo info;
151 SSL_CipherPrefGet(fd, cipher, &enabled);
153 SSL_CipherPrefGetDefault(cipher, &enabled);
155 SSL_CipherPolicyGet(cipher, &policy);
156 SSL_GetCipherSuiteInfo(cipher, &info, (PRUintn)sizeof(info));
157 Debug( LDAP_DEBUG_TRACE,
158 "TLS: cipher: %d - %s, enabled: %d, ",
159 info.cipherSuite, info.cipherSuiteName, enabled );
160 Debug( LDAP_DEBUG_TRACE,
161 "policy: %d\n", policy, 0, 0 );
167 /* Cipher definitions */
169 char *ossl_name; /* The OpenSSL cipher name */
170 int num; /* The cipher id */
171 int attr; /* cipher attributes: algorithms, etc */
172 int version; /* protocol version valid for this cipher */
173 int bits; /* bits of strength */
174 int alg_bits; /* bits of the algorithm */
175 int strength; /* LOW, MEDIUM, HIGH */
176 int enabled; /* Enabled by default? */
179 /* cipher attributes */
180 #define SSL_kRSA 0x00000001L
181 #define SSL_aRSA 0x00000002L
182 #define SSL_aDSS 0x00000004L
183 #define SSL_DSS SSL_aDSS
184 #define SSL_eNULL 0x00000008L
185 #define SSL_DES 0x00000010L
186 #define SSL_3DES 0x00000020L
187 #define SSL_RC4 0x00000040L
188 #define SSL_RC2 0x00000080L
189 #define SSL_AES 0x00000100L
190 #define SSL_MD5 0x00000200L
191 #define SSL_SHA1 0x00000400L
192 #define SSL_SHA SSL_SHA1
193 #define SSL_RSA (SSL_kRSA|SSL_aRSA)
195 /* cipher strength */
196 #define SSL_NULL 0x00000001L
197 #define SSL_EXPORT40 0x00000002L
198 #define SSL_EXPORT56 0x00000004L
199 #define SSL_LOW 0x00000008L
200 #define SSL_MEDIUM 0x00000010L
201 #define SSL_HIGH 0x00000020L
203 #define SSL2 0x00000001L
204 #define SSL3 0x00000002L
205 /* OpenSSL treats SSL3 and TLSv1 the same */
208 /* Cipher translation */
209 static cipher_properties ciphers_def[] = {
211 {"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},
212 {"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},
213 {"RC4-MD5", SSL_EN_RC4_128_WITH_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL2, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
214 {"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},
215 {"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},
216 {"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},
219 {"RC4-MD5", SSL_RSA_WITH_RC4_128_MD5, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5, SSL3, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
220 {"RC4-SHA", SSL_RSA_WITH_RC4_128_SHA, SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_SHA1, SSL3, 128, 128, SSL_MEDIUM, SSL_ALLOWED},
221 {"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},
222 {"DES-CBC-SHA", SSL_RSA_WITH_DES_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1, SSL3, 56, 56, SSL_LOW, SSL_ALLOWED},
223 {"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},
224 {"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},
225 {"NULL-MD5", SSL_RSA_WITH_NULL_MD5, SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5, SSL3, 0, 0, SSL_NULL, SSL_NOT_ALLOWED},
226 {"NULL-SHA", SSL_RSA_WITH_NULL_SHA, SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_SHA1, SSL3, 0, 0, SSL_NULL, SSL_NOT_ALLOWED},
229 {"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},
230 {"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},
231 {"AES128-SHA", TLS_RSA_WITH_AES_128_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_AES|SSL_SHA, TLS1, 128, 128, SSL_HIGH, SSL_ALLOWED},
232 {"AES256-SHA", TLS_RSA_WITH_AES_256_CBC_SHA, SSL_kRSA|SSL_aRSA|SSL_AES|SSL_SHA, TLS1, 256, 256, SSL_HIGH, SSL_ALLOWED},
235 #define ciphernum (sizeof(ciphers_def)/sizeof(cipher_properties))
237 /* given err which is the current errno, calls PR_SetError with
238 the corresponding NSPR error code */
240 tlsm_map_error(int err)
246 prError = PR_NO_ACCESS_RIGHTS_ERROR;
249 prError = PR_ADDRESS_IN_USE_ERROR;
252 prError = PR_ADDRESS_NOT_AVAILABLE_ERROR;
255 prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
258 prError = PR_WOULD_BLOCK_ERROR;
261 * On QNX and Neutrino, EALREADY is defined as EBUSY.
263 #if EALREADY != EBUSY
265 prError = PR_ALREADY_INITIATED_ERROR;
269 prError = PR_BAD_DESCRIPTOR_ERROR;
273 prError = PR_IO_ERROR;
277 prError = PR_FILESYSTEM_MOUNTED_ERROR;
280 prError = PR_CONNECT_ABORTED_ERROR;
283 prError = PR_CONNECT_REFUSED_ERROR;
286 prError = PR_CONNECT_RESET_ERROR;
289 prError = PR_DEADLOCK_ERROR;
293 prError = PR_DIRECTORY_CORRUPTED_ERROR;
298 prError = PR_NO_DEVICE_SPACE_ERROR;
302 prError = PR_FILE_EXISTS_ERROR;
305 prError = PR_ACCESS_FAULT_ERROR;
308 prError = PR_FILE_TOO_BIG_ERROR;
311 prError = PR_HOST_UNREACHABLE_ERROR;
314 prError = PR_IN_PROGRESS_ERROR;
317 prError = PR_PENDING_INTERRUPT_ERROR;
320 prError = PR_INVALID_ARGUMENT_ERROR;
323 prError = PR_IO_ERROR;
326 prError = PR_IS_CONNECTED_ERROR;
329 prError = PR_IS_DIRECTORY_ERROR;
332 prError = PR_LOOP_ERROR;
335 prError = PR_PROC_DESC_TABLE_FULL_ERROR;
338 prError = PR_MAX_DIRECTORY_ENTRIES_ERROR;
341 prError = PR_INVALID_ARGUMENT_ERROR;
345 prError = PR_REMOTE_FILE_ERROR;
349 prError = PR_NAME_TOO_LONG_ERROR;
352 prError = PR_NETWORK_UNREACHABLE_ERROR;
355 prError = PR_SYS_DESC_TABLE_FULL_ERROR;
358 * On SCO OpenServer 5, ENOBUFS is defined as ENOSR.
360 #if defined(ENOBUFS) && (ENOBUFS != ENOSR)
362 prError = PR_INSUFFICIENT_RESOURCES_ERROR;
366 prError = PR_FILE_NOT_FOUND_ERROR;
369 prError = PR_FILE_NOT_FOUND_ERROR;
372 prError = PR_FILE_IS_LOCKED_ERROR;
376 prError = PR_REMOTE_FILE_ERROR;
380 prError = PR_OUT_OF_MEMORY_ERROR;
383 prError = PR_INVALID_ARGUMENT_ERROR;
386 prError = PR_NO_DEVICE_SPACE_ERROR;
390 prError = PR_INSUFFICIENT_RESOURCES_ERROR;
394 prError = PR_NOT_CONNECTED_ERROR;
397 prError = PR_NOT_DIRECTORY_ERROR;
400 prError = PR_NOT_SOCKET_ERROR;
403 prError = PR_FILE_NOT_FOUND_ERROR;
406 prError = PR_NOT_TCP_SOCKET_ERROR;
410 prError = PR_BUFFER_OVERFLOW_ERROR;
414 prError = PR_NO_ACCESS_RIGHTS_ERROR;
417 prError = PR_CONNECT_RESET_ERROR;
421 prError = PR_IO_ERROR;
424 case EPROTONOSUPPORT:
425 prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR;
428 prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
431 prError = PR_INVALID_METHOD_ERROR;
434 prError = PR_READ_ONLY_FILESYSTEM_ERROR;
437 prError = PR_INVALID_METHOD_ERROR;
440 prError = PR_IO_TIMEOUT_ERROR;
442 #if EWOULDBLOCK != EAGAIN
444 prError = PR_WOULD_BLOCK_ERROR;
448 prError = PR_NOT_SAME_DEVICE_ERROR;
451 prError = PR_UNKNOWN_ERROR;
454 PR_SetError( prError, err );
458 * cipher_list is an integer array with the following values:
459 * -1: never enable this cipher
464 nss_parse_ciphers(const char *cipherstr, int cipher_list[ciphernum])
473 /* All disabled to start */
474 for (i=0; i<ciphernum; i++)
477 ciphertip = strdup(cipherstr);
478 cipher = ciphers = ciphertip;
480 while (ciphers && (strlen(ciphers))) {
481 while ((*cipher) && (isspace(*cipher)))
486 case '+': /* Add something */
490 case '-': /* Subtract something */
494 case '!': /* Disable something */
503 if ((ciphers = strchr(cipher, ':'))) {
507 /* Do the easy one first */
508 if (!strcmp(cipher, "ALL")) {
509 for (i=0; i<ciphernum; i++) {
510 if (!(ciphers_def[i].attr & SSL_eNULL))
511 cipher_list[i] = action;
513 } else if (!strcmp(cipher, "COMPLEMENTOFALL")) {
514 for (i=0; i<ciphernum; i++) {
515 if ((ciphers_def[i].attr & SSL_eNULL))
516 cipher_list[i] = action;
518 } else if (!strcmp(cipher, "DEFAULT")) {
519 for (i=0; i<ciphernum; i++) {
520 cipher_list[i] = ciphers_def[i].enabled == SSL_ALLOWED ? 1 : 0;
529 while (c && (strlen(c))) {
531 if ((c = strchr(cipher, '+'))) {
535 if (!strcmp(cipher, "RSA")) {
537 } else if ((!strcmp(cipher, "NULL")) || (!strcmp(cipher, "eNULL"))) {
539 } else if (!strcmp(cipher, "AES")) {
541 } else if (!strcmp(cipher, "3DES")) {
543 } else if (!strcmp(cipher, "DES")) {
545 } else if (!strcmp(cipher, "RC4")) {
547 } else if (!strcmp(cipher, "RC2")) {
549 } else if (!strcmp(cipher, "MD5")) {
551 } else if ((!strcmp(cipher, "SHA")) || (!strcmp(cipher, "SHA1"))) {
553 } else if (!strcmp(cipher, "SSLv2")) {
555 } else if (!strcmp(cipher, "SSLv3")) {
557 } else if (!strcmp(cipher, "TLSv1")) {
559 } else if (!strcmp(cipher, "HIGH")) {
560 strength |= SSL_HIGH;
561 } else if (!strcmp(cipher, "MEDIUM")) {
562 strength |= SSL_MEDIUM;
563 } else if (!strcmp(cipher, "LOW")) {
565 } else if ((!strcmp(cipher, "EXPORT")) || (!strcmp(cipher, "EXP"))) {
566 strength |= SSL_EXPORT40|SSL_EXPORT56;
567 } else if (!strcmp(cipher, "EXPORT40")) {
568 strength |= SSL_EXPORT40;
569 } else if (!strcmp(cipher, "EXPORT56")) {
570 strength |= SSL_EXPORT56;
578 /* If we have a mask, apply it. If not then perhaps they provided
579 * a specific cipher to enable.
581 if (mask || strength || protocol) {
582 for (i=0; i<ciphernum; i++) {
583 if (((ciphers_def[i].attr & mask) ||
584 (ciphers_def[i].strength & strength) ||
585 (ciphers_def[i].version & protocol)) &&
586 (cipher_list[i] != -1)) {
587 /* Enable the NULL ciphers only if explicity
589 if (ciphers_def[i].attr & SSL_eNULL) {
590 if (mask & SSL_eNULL)
591 cipher_list[i] = action;
593 cipher_list[i] = action;
597 for (i=0; i<ciphernum; i++) {
598 if (!strcmp(ciphers_def[i].ossl_name, cipher) &&
599 cipher_list[1] != -1)
600 cipher_list[i] = action;
609 /* See if any ciphers were enabled */
611 for (i=0; i<ciphernum; i++) {
612 if (cipher_list[i] == 1)
622 tlsm_parse_ciphers(tlsm_ctx *ctx, const char *str)
624 int cipher_state[ciphernum];
630 rv = nss_parse_ciphers(str, cipher_state);
633 /* First disable everything */
634 for (i = 0; i < SSL_NumImplementedCiphers; i++)
635 SSL_CipherPrefSet(ctx->tc_model, SSL_ImplementedCiphers[i], SSL_NOT_ALLOWED);
637 /* Now enable what was requested */
638 for (i=0; i<ciphernum; i++) {
639 SSLCipherSuiteInfo suite;
642 if (SSL_GetCipherSuiteInfo(ciphers_def[i].num, &suite, sizeof suite)
644 enabled = cipher_state[i] < 0 ? 0 : cipher_state[i];
645 if (enabled == SSL_ALLOWED) {
646 if (PK11_IsFIPS() && !suite.isFIPS)
647 enabled = SSL_NOT_ALLOWED;
649 SSL_CipherPrefSet(ctx->tc_model, ciphers_def[i].num, enabled);
654 return rv == 1 ? 0 : -1;
658 tlsm_bad_cert_handler(void *arg, PRFileDesc *ssl)
660 SECStatus success = SECSuccess;
662 tlsm_ctx *ctx = (tlsm_ctx *)arg;
668 err = PORT_GetError();
671 case SEC_ERROR_UNTRUSTED_ISSUER:
672 case SEC_ERROR_UNKNOWN_ISSUER:
673 case SEC_ERROR_EXPIRED_CERTIFICATE:
674 if (ctx->tc_verify_cert) {
675 success = SECFailure;
678 /* we bypass NSS's hostname checks and do our own */
679 case SSL_ERROR_BAD_CERT_DOMAIN:
682 success = SECFailure;
690 tlsm_dump_security_status(PRFileDesc *fd)
692 char * cp; /* bulk cipher name */
693 char * ip; /* cert issuer DN */
694 char * sp; /* cert subject DN */
695 int op; /* High, Low, Off */
696 int kp0; /* total key bits */
697 int kp1; /* secret key bits */
698 SSL3Statistics * ssl3stats = SSL_GetStatistics();
700 SSL_SecurityStatus( fd, &op, &cp, &kp0, &kp1, &ip, &sp );
701 Debug( LDAP_DEBUG_TRACE,
702 "TLS certificate verification: subject: %s, issuer: %s, cipher: %s, ",
703 sp ? sp : "-unknown-", ip ? ip : "-unknown-", cp ? cp : "-unknown-" );
707 Debug( LDAP_DEBUG_TRACE,
708 "security level: %s, secret key bits: %d, total key bits: %d, ",
709 ((op == SSL_SECURITY_STATUS_ON_HIGH) ? "high" :
710 ((op == SSL_SECURITY_STATUS_ON_LOW) ? "low" : "off")),
713 Debug( LDAP_DEBUG_TRACE,
714 "cache hits: %ld, cache misses: %ld, cache not reusable: %ld\n",
715 ssl3stats->hch_sid_cache_hits, ssl3stats->hch_sid_cache_misses,
716 ssl3stats->hch_sid_cache_not_ok );
722 tlsm_handshake_complete_cb( PRFileDesc *fd, void *client_data )
724 tlsm_dump_security_status( fd );
727 #ifdef READ_PASSWORD_FROM_FILE
729 tlsm_get_pin_from_file(const char *token_name, tlsm_ctx *ctx)
732 char *contents = NULL;
735 char *candidate = NULL;
736 PRFileInfo file_info;
737 PRFileDesc *pwd_fileptr = PR_Open( ctx->tc_pin_file, PR_RDONLY, 00400 );
739 /* open the password file */
740 if ( !pwd_fileptr ) {
741 PRErrorCode errcode = PR_GetError();
742 Debug( LDAP_DEBUG_ANY,
743 "TLS: could not open security pin file %s - error %d:%s.\n",
744 ctx->tc_pin_file, errcode,
745 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
749 /* get the file size */
750 if ( PR_SUCCESS != PR_GetFileInfo( ctx->tc_pin_file, &file_info ) ) {
751 PRErrorCode errcode = PR_GetError();
752 Debug( LDAP_DEBUG_ANY,
753 "TLS: could not get file info from pin file %s - error %d:%s.\n",
754 ctx->tc_pin_file, errcode,
755 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
759 /* create a buffer to hold the file contents */
760 if ( !( contents = PR_MALLOC( file_info.size + 1 ) ) ) {
761 PRErrorCode errcode = PR_GetError();
762 Debug( LDAP_DEBUG_ANY,
763 "TLS: could not alloc a buffer for contents of pin file %s - error %d:%s.\n",
764 ctx->tc_pin_file, errcode,
765 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
769 /* read file into the buffer */
770 if( PR_Read( pwd_fileptr, contents, file_info.size ) <= 0 ) {
771 PRErrorCode errcode = PR_GetError();
772 Debug( LDAP_DEBUG_ANY,
773 "TLS: could not read the file contents from pin file %s - error %d:%s.\n",
774 ctx->tc_pin_file, errcode,
775 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
779 /* format is [tokenname:]password EOL [tokenname:]password EOL ... */
780 /* if you want to use a password containing a colon character, use
781 the special tokenname "default" */
782 for ( line = PL_strtok_r( contents, "\r\n", &lasts ); line;
783 line = PL_strtok_r( NULL, "\r\n", &lasts ) ) {
787 continue; /* skip blank lines */
789 colon = PL_strchr( line, ':' );
791 if ( *(colon + 1) && token_name &&
792 !PL_strncmp( token_name, line, colon-line ) ) {
793 candidate = colon + 1; /* found a definite match */
795 } else if ( !PL_strncmp( DEFAULT_TOKEN_NAME, line, colon-line ) ) {
796 candidate = colon + 1; /* found possible match */
798 } else { /* no token name */
804 PR_Close( pwd_fileptr );
807 pwdstr = PL_strdup( candidate );
809 PL_strfree( contents );
813 #endif /* READ_PASSWORD_FROM_FILE */
815 #ifdef READ_PASSWORD_FROM_STDIN
817 * Turn the echoing off on a tty.
822 if ( isatty( fd ) ) {
824 tcgetattr( fd, &tio );
825 tio.c_lflag &= ~ECHO;
826 tcsetattr( fd, TCSAFLUSH, &tio );
831 * Turn the echoing on on a tty.
836 if ( isatty( fd ) ) {
838 tcgetattr( fd, &tio );
840 tcsetattr( fd, TCSAFLUSH, &tio );
841 tcsetattr( fd, TCSAFLUSH, &tio );
844 #endif /* READ_PASSWORD_FROM_STDIN */
847 * This does the actual work of reading the pin/password/pass phrase
850 tlsm_get_pin(PK11SlotInfo *slot, PRBool retry, tlsm_ctx *ctx)
852 char *token_name = NULL;
855 token_name = PK11_GetTokenName( slot );
856 #ifdef READ_PASSWORD_FROM_FILE
857 /* Try to get the passwords from the password file if it exists.
858 * THIS IS UNSAFE and is provided for convenience only. Without this
859 * capability the server would have to be started in foreground mode
860 * if using an encrypted key.
862 if ( ctx->tc_pin_file ) {
863 pwdstr = tlsm_get_pin_from_file( token_name, ctx );
865 #endif /* RETRIEVE_PASSWORD_FROM_FILE */
866 #ifdef READ_PASSWORD_FROM_STDIN
868 int infd = PR_FileDesc2NativeHandle( PR_STDIN );
869 int isTTY = isatty( infd );
870 unsigned char phrase[200];
871 /* Prompt for password */
874 "Please enter pin, password, or pass phrase for security token '%s': ",
875 token_name ? token_name : DEFAULT_TOKEN_NAME );
878 fgets( (char*)phrase, sizeof(phrase), stdin );
880 fprintf( stdout, "\n" );
883 /* stomp on newline */
884 phrase[strlen((char*)phrase)-1] = 0;
886 pwdstr = PL_strdup( (char*)phrase );
889 #endif /* READ_PASSWORD_FROM_STDIN */
894 * PKCS11 devices (including the internal softokn cert/key database)
895 * may be protected by a pin or password or even pass phrase
896 * MozNSS needs a way for the user to provide that
899 tlsm_pin_prompt(PK11SlotInfo *slot, PRBool retry, void *arg)
901 tlsm_ctx *ctx = (tlsm_ctx *)arg;
903 return tlsm_get_pin( slot, retry, ctx );
907 tlsm_get_basic_constraint_extension( CERTCertificate *cert,
908 CERTBasicConstraints *cbcval )
910 SECItem encodedVal = { 0, NULL };
913 rc = CERT_FindCertExtension( cert, SEC_OID_X509_BASIC_CONSTRAINTS,
915 if ( rc != SECSuccess ) {
919 rc = CERT_DecodeBasicConstraintValue( cbcval, &encodedVal );
921 /* free the raw extension data */
922 PORT_Free( encodedVal.data );
928 tlsm_cert_is_self_issued( CERTCertificate *cert )
930 /* A cert is self-issued if its subject and issuer are equal and
931 * both are of non-zero length.
933 PRBool is_self_issued = cert &&
934 (PRBool)SECITEM_ItemsAreEqual( &cert->derIssuer,
935 &cert->derSubject ) &&
936 cert->derSubject.len > 0;
937 return is_self_issued;
941 tlsm_verify_cert(CERTCertDBHandle *handle, CERTCertificate *cert, void *pinarg,
942 PRBool checksig, SECCertificateUsage certUsage, int errorToIgnore )
944 CERTVerifyLog verifylog;
945 SECStatus ret = SECSuccess;
948 /* the log captures information about every cert in the chain, so we can tell
949 which cert caused the problem and what the problem was */
950 memset( &verifylog, 0, sizeof( verifylog ) );
951 verifylog.arena = PORT_NewArena( DER_DEFAULT_CHUNKSIZE );
952 if ( verifylog.arena == NULL ) {
953 Debug( LDAP_DEBUG_ANY,
954 "TLS certificate verification: Out of memory for certificate verification logger\n",
958 ret = CERT_VerifyCertificate( handle, cert, checksig, certUsage, PR_Now(), pinarg, &verifylog,
960 if ( ( name = cert->subjectName ) == NULL ) {
961 name = cert->nickname;
963 if ( verifylog.head == NULL ) {
964 /* it is possible for CERT_VerifyCertificate return with an error with no logging */
965 if ( ret != SECSuccess ) {
966 PRErrorCode errcode = PR_GetError();
967 Debug( LDAP_DEBUG_ANY,
968 "TLS: certificate [%s] is not valid - error %d:%s.\n",
969 name ? name : "(unknown)",
970 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
974 CERTVerifyLogNode *node;
976 ret = SECSuccess; /* reset */
977 node = verifylog.head;
979 if ( ( name = node->cert->subjectName ) == NULL ) {
980 name = node->cert->nickname;
983 /* NSS does not like CA certs that have the basic constraints extension
984 with the CA flag set to FALSE - openssl doesn't check if the cert
986 if ( ( node->error == SEC_ERROR_CA_CERT_INVALID ) &&
987 tlsm_cert_is_self_issued( node->cert ) ) {
988 CERTBasicConstraints basicConstraint;
989 SECStatus rv = tlsm_get_basic_constraint_extension( node->cert, &basicConstraint );
990 if ( ( rv == SECSuccess ) && ( basicConstraint.isCA == PR_FALSE ) ) {
991 Debug( LDAP_DEBUG_TRACE,
992 "TLS: certificate [%s] is not correct because it is a CA cert and the "
993 "BasicConstraint CA flag is set to FALSE - allowing for now, but "
994 "please fix your certs if possible\n", name, 0, 0 );
995 } else { /* does not have basicconstraint, or some other error */
997 Debug( LDAP_DEBUG_ANY,
998 "TLS: certificate [%s] is not valid - CA cert is not valid\n",
1001 } else if ( errorToIgnore && ( node->error == errorToIgnore ) ) {
1002 Debug( LDAP_DEBUG_ANY,
1003 "TLS: Warning: ignoring error for certificate [%s] - error %ld:%s.\n",
1004 name, node->error, PR_ErrorToString( node->error, PR_LANGUAGE_I_DEFAULT ) );
1007 Debug( LDAP_DEBUG_ANY,
1008 "TLS: certificate [%s] is not valid - error %ld:%s.\n",
1009 name, node->error, PR_ErrorToString( node->error, PR_LANGUAGE_I_DEFAULT ) );
1012 CERT_DestroyCertificate( node->cert );
1017 PORT_FreeArena( verifylog.arena, PR_FALSE );
1019 if ( ret == SECSuccess ) {
1020 Debug( LDAP_DEBUG_TRACE,
1021 "TLS: certificate [%s] is valid\n", name, 0, 0 );
1028 tlsm_auth_cert_handler(void *arg, PRFileDesc *fd,
1029 PRBool checksig, PRBool isServer)
1031 SECCertificateUsage certUsage = isServer ? certificateUsageSSLClient : certificateUsageSSLServer;
1032 SECStatus ret = SECSuccess;
1034 ret = tlsm_verify_cert( (CERTCertDBHandle *)arg, SSL_PeerCertificate( fd ),
1035 SSL_RevealPinArg( fd ),
1036 checksig, certUsage, 0 );
1042 tlsm_authenticate_to_slot( tlsm_ctx *ctx, PK11SlotInfo *slot )
1046 if ( SECSuccess != PK11_Authenticate( slot, PR_FALSE, ctx ) ) {
1047 char *token_name = PK11_GetTokenName( slot );
1048 PRErrorCode errcode = PR_GetError();
1049 Debug( LDAP_DEBUG_ANY,
1050 "TLS: could not authenticate to the security token %s - error %d:%s.\n",
1051 token_name ? token_name : DEFAULT_TOKEN_NAME, errcode,
1052 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1054 rc = 0; /* success */
1061 tlsm_nss_shutdown_cb( void *appData, void *nssData )
1063 SECStatus rc = SECSuccess;
1065 SSL_ShutdownServerSessionIDCache();
1066 SSL_ClearSessionCache();
1069 SECMOD_UnloadUserModule( pem_module );
1070 SECMOD_DestroyModule( pem_module );
1077 tlsm_init_pem_module( void )
1080 char *fullname = NULL;
1081 char *configstring = NULL;
1087 /* not loaded - load it */
1088 /* get the system dependent library name */
1089 fullname = PR_GetLibraryName( NULL, PEM_LIBRARY );
1090 /* Load our PKCS#11 module */
1091 configstring = PR_smprintf( "library=%s name=" PEM_MODULE " parameters=\"\"", fullname );
1092 PL_strfree( fullname );
1094 pem_module = SECMOD_LoadUserModule( configstring, NULL, PR_FALSE );
1095 PR_smprintf_free( configstring );
1097 if ( !pem_module || !pem_module->loaded ) {
1099 SECMOD_DestroyModule( pem_module );
1109 tlsm_add_pem_obj( tlsm_ctx *ctx, PK11GenericObject *obj )
1111 int idx = ctx->tc_n_pem_objs;
1112 ctx->tc_n_pem_objs++;
1113 ctx->tc_pem_objs = (PK11GenericObject **)
1114 PORT_Realloc( ctx->tc_pem_objs, ctx->tc_n_pem_objs * sizeof( PK11GenericObject * ) );
1115 ctx->tc_pem_objs[idx] = obj;
1119 tlsm_free_pem_objs( tlsm_ctx *ctx )
1121 /* free in reverse order of allocation */
1122 while ( ctx->tc_n_pem_objs-- ) {
1123 PK11_DestroyGenericObject( ctx->tc_pem_objs[ctx->tc_n_pem_objs] );
1124 ctx->tc_pem_objs[ctx->tc_n_pem_objs] = NULL;
1126 PORT_Free(ctx->tc_pem_objs);
1127 ctx->tc_pem_objs = NULL;
1128 ctx->tc_n_pem_objs = 0;
1132 tlsm_add_cert_from_file( tlsm_ctx *ctx, const char *filename, PRBool isca, PRBool istrusted )
1135 PK11SlotInfo *slot = NULL;
1136 PK11GenericObject *rv;
1137 CK_ATTRIBUTE *attrs;
1138 CK_ATTRIBUTE theTemplate[20];
1139 CK_BBOOL cktrue = CK_TRUE;
1140 CK_BBOOL ckfalse = CK_FALSE;
1141 CK_OBJECT_CLASS objClass = CKO_CERTIFICATE;
1142 char tmpslotname[64];
1143 char *slotname = NULL;
1144 const char *ptr = NULL;
1145 char sep = PR_GetDirectorySeparator();
1149 memset( &fi, 0, sizeof(fi) );
1150 status = PR_GetFileInfo( filename, &fi );
1151 if ( PR_SUCCESS != status) {
1152 PRErrorCode errcode = PR_GetError();
1153 Debug( LDAP_DEBUG_ANY,
1154 "TLS: could not read certificate file %s - error %d:%s.\n",
1156 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1160 if ( fi.type != PR_FILE_FILE ) {
1161 PR_SetError(PR_IS_DIRECTORY_ERROR, 0);
1162 Debug( LDAP_DEBUG_ANY,
1163 "TLS: error: the certificate file %s is not a file.\n",
1168 attrs = theTemplate;
1171 slotID = 0; /* CA and trust objects use slot 0 */
1172 PR_snprintf( tmpslotname, sizeof(tmpslotname), TLSM_PEM_TOKEN_FMT, slotID );
1173 slotname = tmpslotname;
1174 istrusted = PR_TRUE;
1176 if ( ctx->tc_slotname == NULL ) { /* need new slot */
1180 slotID = ++tlsm_slot_count;
1182 ctx->tc_slotname = PR_smprintf( TLSM_PEM_TOKEN_FMT, slotID );
1184 slotname = ctx->tc_slotname;
1186 if ( ( ptr = PL_strrchr( filename, sep ) ) ) {
1187 PL_strfree( ctx->tc_certname );
1190 /* pemnss conflates trusted certs with CA certs - since there can
1191 be more than one CA cert in a file (e.g. ca-bundle.crt) pemnss
1192 numbers each trusted cert - in the case of a server cert, there will be
1193 only one, so it will be number 0 */
1194 ctx->tc_certname = PR_smprintf( "%s:%s - 0", slotname, ptr );
1196 ctx->tc_certname = PR_smprintf( "%s:%s", slotname, ptr );
1201 slot = PK11_FindSlotByName( slotname );
1204 PRErrorCode errcode = PR_GetError();
1205 Debug( LDAP_DEBUG_ANY,
1206 "TLS: could not find the slot for certificate %s - error %d:%s.\n",
1207 ctx->tc_certname, errcode,
1208 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1212 PK11_SETATTRS( attrs, CKA_CLASS, &objClass, sizeof(objClass) ); attrs++;
1213 PK11_SETATTRS( attrs, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) ); attrs++;
1214 PK11_SETATTRS( attrs, CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 ); attrs++;
1216 PK11_SETATTRS( attrs, CKA_TRUST, &cktrue, sizeof(CK_BBOOL) ); attrs++;
1218 PK11_SETATTRS( attrs, CKA_TRUST, &ckfalse, sizeof(CK_BBOOL) ); attrs++;
1220 /* This loads the certificate in our PEM module into the appropriate
1223 rv = PK11_CreateGenericObject( slot, theTemplate, 4, PR_FALSE /* isPerm */ );
1225 PK11_FreeSlot( slot );
1228 PRErrorCode errcode = PR_GetError();
1229 Debug( LDAP_DEBUG_ANY,
1230 "TLS: could not add the certificate %s - error %d:%s.\n",
1231 ctx->tc_certname, errcode,
1232 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1236 tlsm_add_pem_obj( ctx, rv );
1242 tlsm_add_key_from_file( tlsm_ctx *ctx, const char *filename )
1245 PK11SlotInfo * slot = NULL;
1246 PK11GenericObject *rv;
1247 CK_ATTRIBUTE *attrs;
1248 CK_ATTRIBUTE theTemplate[20];
1249 CK_BBOOL cktrue = CK_TRUE;
1250 CK_OBJECT_CLASS objClass = CKO_PRIVATE_KEY;
1255 memset( &fi, 0, sizeof(fi) );
1256 status = PR_GetFileInfo( filename, &fi );
1257 if ( PR_SUCCESS != status) {
1258 PRErrorCode errcode = PR_GetError();
1259 Debug( LDAP_DEBUG_ANY,
1260 "TLS: could not read key file %s - error %d:%s.\n",
1262 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1266 if ( fi.type != PR_FILE_FILE ) {
1267 PR_SetError(PR_IS_DIRECTORY_ERROR, 0);
1268 Debug( LDAP_DEBUG_ANY,
1269 "TLS: error: the key file %s is not a file.\n",
1274 attrs = theTemplate;
1276 if ( ctx->tc_slotname == NULL ) { /* need new slot */
1277 slotID = ++tlsm_slot_count;
1278 ctx->tc_slotname = PR_smprintf( TLSM_PEM_TOKEN_FMT, slotID );
1280 slot = PK11_FindSlotByName( ctx->tc_slotname );
1283 PRErrorCode errcode = PR_GetError();
1284 Debug( LDAP_DEBUG_ANY,
1285 "TLS: could not find the slot %s for the private key - error %d:%s.\n",
1286 ctx->tc_slotname, errcode,
1287 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1291 PK11_SETATTRS( attrs, CKA_CLASS, &objClass, sizeof(objClass) ); attrs++;
1292 PK11_SETATTRS( attrs, CKA_TOKEN, &cktrue, sizeof(CK_BBOOL) ); attrs++;
1293 PK11_SETATTRS( attrs, CKA_LABEL, (unsigned char *)filename, strlen(filename)+1 ); attrs++;
1294 rv = PK11_CreateGenericObject( slot, theTemplate, 3, PR_FALSE /* isPerm */ );
1297 PRErrorCode errcode = PR_GetError();
1298 Debug( LDAP_DEBUG_ANY,
1299 "TLS: could not add the certificate %s - error %d:%s.\n",
1300 ctx->tc_certname, errcode,
1301 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1304 /* When adding an encrypted key the PKCS#11 will be set as removed */
1305 /* This will force the token to be seen as re-inserted */
1306 SECMOD_WaitForAnyTokenEvent( pem_module, 0, 0 );
1307 PK11_IsPresent( slot );
1311 PK11_FreeSlot( slot );
1314 tlsm_add_pem_obj( ctx, rv );
1320 tlsm_init_ca_certs( tlsm_ctx *ctx, const char *cacertfile, const char *cacertdir )
1322 PRBool isca = PR_TRUE;
1323 PRStatus status = PR_SUCCESS;
1324 PRErrorCode errcode = PR_SUCCESS;
1326 if ( !cacertfile && !cacertdir ) {
1327 /* no checking - not good, but allowed */
1332 int rc = tlsm_add_cert_from_file( ctx, cacertfile, isca, PR_TRUE );
1334 errcode = PR_GetError();
1335 Debug( LDAP_DEBUG_ANY,
1336 "TLS: %s is not a valid CA certificate file - error %d:%s.\n",
1337 cacertfile, errcode,
1338 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1339 /* failure with cacertfile is a hard failure even if cacertdir is
1340 also specified and contains valid CA cert files */
1341 status = PR_FAILURE;
1343 Debug( LDAP_DEBUG_TRACE,
1344 "TLS: loaded CA certificate file %s.\n",
1349 /* if cacertfile above failed, we will return failure, even
1350 if there is a valid CA cert in cacertdir - but we still
1351 process cacertdir in case the user has enabled trace level
1352 debugging so they can see the processing for cacertdir too */
1353 /* any cacertdir failures are "soft" failures - if the user specifies
1354 no cert checking, then we allow the tls/ssl to continue, no matter
1355 what was specified for cacertdir, or the contents of the directory
1356 - this is different behavior than that of cacertfile */
1361 PRStatus fistatus = PR_FAILURE;
1363 memset( &fi, 0, sizeof(fi) );
1364 fistatus = PR_GetFileInfo( cacertdir, &fi );
1365 if ( PR_SUCCESS != fistatus) {
1366 errcode = PR_GetError();
1367 Debug( LDAP_DEBUG_ANY,
1368 "TLS: could not get info about the CA certificate directory %s - error %d:%s.\n",
1370 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1374 if ( fi.type != PR_FILE_DIRECTORY ) {
1375 Debug( LDAP_DEBUG_ANY,
1376 "TLS: error: the CA certificate directory %s is not a directory.\n",
1381 dir = PR_OpenDir( cacertdir );
1382 if ( NULL == dir ) {
1383 errcode = PR_GetError();
1384 Debug( LDAP_DEBUG_ANY,
1385 "TLS: could not open the CA certificate directory %s - error %d:%s.\n",
1387 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1392 entry = PR_ReadDir( dir, PR_SKIP_BOTH | PR_SKIP_HIDDEN );
1393 if ( ( NULL != entry ) && ( NULL != entry->name ) ) {
1394 char *fullpath = NULL;
1397 ptr = PL_strrstr( entry->name, PEM_CA_HASH_FILE_SUFFIX );
1398 if ( ( ptr == NULL ) || ( *(ptr + PEM_CA_HASH_FILE_SUFFIX_LEN) != '\0' ) ) {
1399 Debug( LDAP_DEBUG_TRACE,
1400 "TLS: file %s does not end in [%s] - does not appear to be a CA certificate "
1401 "directory file with a properly hashed file name - skipping.\n",
1402 entry->name, PEM_CA_HASH_FILE_SUFFIX, 0 );
1405 fullpath = PR_smprintf( "%s/%s", cacertdir, entry->name );
1406 if ( !tlsm_add_cert_from_file( ctx, fullpath, isca, PR_TRUE ) ) {
1407 Debug( LDAP_DEBUG_TRACE,
1408 "TLS: loaded CA certificate file %s from CA certificate directory %s.\n",
1409 fullpath, cacertdir, 0 );
1411 errcode = PR_GetError();
1412 Debug( LDAP_DEBUG_TRACE,
1413 "TLS: %s is not a valid CA certificate file - error %d:%s.\n",
1415 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1417 PR_smprintf_free( fullpath );
1419 } while ( NULL != entry );
1423 if ( status != PR_SUCCESS ) {
1431 * NSS supports having multiple cert/key databases in the same
1432 * directory, each one having a unique string prefix e.g.
1433 * slapd-01-cert8.db - the prefix here is "slapd-01-"
1434 * this function examines the given certdir - if it looks like
1435 * /path/to/directory/prefix it will return the
1436 * /path/to/directory part in realcertdir, and the prefix in prefix
1439 tlsm_get_certdb_prefix( const char *certdir, char **realcertdir, char **prefix )
1441 char sep = PR_GetDirectorySeparator();
1443 struct PRFileInfo prfi;
1446 *realcertdir = (char *)certdir; /* default is the one passed in */
1448 /* if certdir is not given, just return */
1453 prc = PR_GetFileInfo( certdir, &prfi );
1454 /* if certdir exists (file or directory) then it cannot specify a prefix */
1455 if ( prc == PR_SUCCESS ) {
1459 /* if certdir was given, and there is a '/' in certdir, see if there
1460 is anything after the last '/' - if so, assume it is the prefix */
1461 if ( ( ( ptr = strrchr( certdir, sep ) ) ) && *(ptr+1) ) {
1462 *realcertdir = PL_strndup( certdir, ptr-certdir );
1463 *prefix = PL_strdup( ptr+1 );
1470 * This is the part of the init we defer until we get the
1471 * actual security configuration information. This is
1472 * only called once, protected by a PRCallOnce
1473 * NOTE: This must be done before the first call to SSL_ImportFD,
1474 * especially the setting of the policy
1475 * NOTE: This must be called after fork()
1478 tlsm_deferred_init( void *arg )
1480 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1481 struct ldaptls *lt = ctx->tc_config;
1482 const char *securitydirs[3];
1485 PRErrorCode errcode = 1;
1486 #ifdef HAVE_NSS_INITCONTEXT
1487 NSSInitParameters initParams;
1488 NSSInitContext *initctx = NULL;
1493 #ifdef HAVE_SECMOD_RESTARTMODULES
1494 /* NSS enforces the pkcs11 requirement that modules should be unloaded after
1495 a fork() - since there is no portable way to determine if NSS has been
1496 already initialized in a parent process, we just call SECMOD_RestartModules
1497 with force == FALSE - if the module has been unloaded due to a fork, it will
1498 be reloaded, otherwise, it is a no-op */
1499 if ( SECFailure == ( rc = SECMOD_RestartModules(PR_FALSE /* do not force */) ) ) {
1500 errcode = PORT_GetError();
1501 if ( errcode != SEC_ERROR_NOT_INITIALIZED ) {
1502 Debug( LDAP_DEBUG_TRACE,
1503 "TLS: could not restart the security modules: %d:%s\n",
1504 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1511 #ifdef HAVE_NSS_INITCONTEXT
1512 memset( &initParams, 0, sizeof( initParams ) );
1513 initParams.length = sizeof( initParams );
1514 #endif /* HAVE_NSS_INITCONTEXT */
1516 #ifndef HAVE_NSS_INITCONTEXT
1517 if ( !NSS_IsInitialized() ) {
1518 #endif /* HAVE_NSS_INITCONTEXT */
1520 MOZNSS_DIR will override everything else - you can
1521 always set MOZNSS_DIR to force the use of this
1523 If using MOZNSS, specify the location of the moznss db dir
1524 in the cacertdir directive of the OpenLDAP configuration.
1525 DEFAULT_MOZNSS_DIR will only be used if the code cannot
1526 find a security dir to use based on the current
1530 securitydirs[nn++] = PR_GetEnv( "MOZNSS_DIR" );
1531 securitydirs[nn++] = lt->lt_cacertdir;
1532 securitydirs[nn++] = PR_GetEnv( "DEFAULT_MOZNSS_DIR" );
1533 for ( ii = 0; !done && ( ii < nn ); ++ii ) {
1534 char *realcertdir = NULL;
1535 const char *defprefix = "";
1536 char *prefix = (char *)defprefix;
1537 const char *securitydir = securitydirs[ii];
1538 if ( NULL == securitydir ) {
1542 tlsm_get_certdb_prefix( securitydir, &realcertdir, &prefix );
1543 #ifdef HAVE_NSS_INITCONTEXT
1544 #ifdef INITCONTEXT_HACK
1545 if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
1546 rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
1548 initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
1549 &initParams, NSS_INIT_READONLY );
1550 rc = (initctx == NULL) ? SECFailure : SECSuccess;
1553 initctx = NSS_InitContext( realcertdir, prefix, prefix, SECMOD_DB,
1554 &initParams, NSS_INIT_READONLY );
1555 rc = (initctx == NULL) ? SECFailure : SECSuccess;
1558 rc = NSS_Initialize( realcertdir, prefix, prefix, SECMOD_DB, NSS_INIT_READONLY );
1561 if ( rc != SECSuccess ) {
1562 errcode = PORT_GetError();
1563 if ( securitydirs[ii] != lt->lt_cacertdir) {
1564 Debug( LDAP_DEBUG_TRACE,
1565 "TLS: could not initialize moznss using security dir %s prefix %s - error %d.\n",
1566 realcertdir, prefix, errcode );
1570 Debug( LDAP_DEBUG_TRACE, "TLS: using moznss security dir %s prefix %s.\n",
1571 realcertdir, prefix, 0 );
1575 if ( realcertdir != securitydir ) {
1576 PL_strfree( realcertdir );
1578 if ( prefix != defprefix ) {
1579 PL_strfree( prefix );
1583 if ( errcode ) { /* no moznss db found, or not using moznss db */
1584 #ifdef HAVE_NSS_INITCONTEXT
1585 int flags = NSS_INIT_READONLY|NSS_INIT_NOCERTDB|NSS_INIT_NOMODDB;
1586 #ifdef INITCONTEXT_HACK
1587 if ( !NSS_IsInitialized() && ctx->tc_is_server ) {
1588 rc = NSS_NoDB_Init( NULL );
1590 initctx = NSS_InitContext( "", "", "", SECMOD_DB,
1591 &initParams, flags );
1592 rc = (initctx == NULL) ? SECFailure : SECSuccess;
1595 initctx = NSS_InitContext( "", "", "", SECMOD_DB,
1596 &initParams, flags );
1597 rc = (initctx == NULL) ? SECFailure : SECSuccess;
1600 rc = NSS_NoDB_Init( NULL );
1602 if ( rc != SECSuccess ) {
1603 errcode = PORT_GetError();
1604 Debug( LDAP_DEBUG_ANY,
1605 "TLS: could not initialize moznss - error %d:%s.\n",
1606 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1610 #ifdef HAVE_NSS_INITCONTEXT
1611 ctx->tc_initctx = initctx;
1614 /* initialize the PEM module */
1615 if ( tlsm_init_pem_module() ) {
1616 errcode = PORT_GetError();
1617 Debug( LDAP_DEBUG_ANY,
1618 "TLS: could not initialize moznss PEM module - error %d:%s.\n",
1619 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), 0 );
1623 if ( tlsm_init_ca_certs( ctx, lt->lt_cacertfile, lt->lt_cacertdir ) ) {
1624 /* if we tried to use lt->lt_cacertdir as an NSS key/cert db, errcode
1625 will be a value other than 1 - print an error message so that the
1626 user will know that failed too */
1627 if ( ( errcode != 1 ) && ( lt->lt_cacertdir ) ) {
1628 char *realcertdir = NULL;
1629 char *prefix = NULL;
1630 tlsm_get_certdb_prefix( lt->lt_cacertdir, &realcertdir, &prefix );
1631 Debug( LDAP_DEBUG_TRACE,
1632 "TLS: could not initialize moznss using security dir %s prefix %s - error %d.\n",
1633 realcertdir, prefix ? prefix : "", errcode );
1634 if ( realcertdir != lt->lt_cacertdir ) {
1635 PL_strfree( realcertdir );
1637 PL_strfree( prefix );
1642 ctx->tc_using_pem = PR_TRUE;
1645 #ifdef HAVE_NSS_INITCONTEXT
1646 if ( !ctx->tc_initctx ) {
1647 ctx->tc_initctx = initctx;
1651 NSS_SetDomesticPolicy();
1653 PK11_SetPasswordFunc( tlsm_pin_prompt );
1655 /* register cleanup function */
1656 /* delete the old one, if any */
1657 NSS_UnregisterShutdown( tlsm_nss_shutdown_cb, NULL );
1658 NSS_RegisterShutdown( tlsm_nss_shutdown_cb, NULL );
1660 #ifndef HAVE_NSS_INITCONTEXT
1662 #endif /* HAVE_NSS_INITCONTEXT */
1668 tlsm_authenticate( tlsm_ctx *ctx, const char *certname, const char *pininfo )
1670 const char *colon = NULL;
1671 char *token_name = NULL;
1672 PK11SlotInfo *slot = NULL;
1675 if ( !certname || !*certname ) {
1679 if ( ( colon = PL_strchr( certname, ':' ) ) ) {
1680 token_name = PL_strndup( certname, colon-certname );
1684 slot = PK11_FindSlotByName( token_name );
1686 slot = PK11_GetInternalKeySlot();
1690 PRErrorCode errcode = PR_GetError();
1691 Debug( LDAP_DEBUG_ANY,
1692 "TLS: could not find the slot for security token %s - error %d:%s.\n",
1693 token_name ? token_name : DEFAULT_TOKEN_NAME, errcode,
1694 PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1698 rc = tlsm_authenticate_to_slot( ctx, slot );
1701 PL_strfree( token_name );
1703 PK11_FreeSlot( slot );
1710 * Find and verify the certificate.
1711 * Either fd is given, in which case the cert will be taken from it via SSL_PeerCertificate
1712 * or certname is given, and it will be searched for by name
1715 tlsm_find_and_verify_cert_key(tlsm_ctx *ctx, PRFileDesc *fd, const char *certname, int isServer, CERTCertificate **pRetCert, SECKEYPrivateKey **pRetKey)
1717 CERTCertificate *cert = NULL;
1719 void *pin_arg = NULL;
1720 SECKEYPrivateKey *key = NULL;
1722 pin_arg = SSL_RevealPinArg( fd );
1724 cert = PK11_FindCertFromNickname( certname, pin_arg );
1726 PRErrorCode errcode = PR_GetError();
1727 Debug( LDAP_DEBUG_ANY,
1728 "TLS: error: the certificate %s could not be found in the database - error %d:%s\n",
1729 certname, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1733 /* we are verifying the peer cert
1734 we also need to swap the isServer meaning */
1735 cert = SSL_PeerCertificate( fd );
1737 PRErrorCode errcode = PR_GetError();
1738 Debug( LDAP_DEBUG_ANY,
1739 "TLS: error: could not get the certificate from the peer connection - error %d:%s\n",
1740 errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ), NULL );
1743 isServer = !isServer; /* verify the peer's cert instead */
1746 if ( ctx->tc_slotname ) {
1747 PK11SlotInfo *slot = PK11_FindSlotByName( ctx->tc_slotname );
1748 key = PK11_FindPrivateKeyFromCert( slot, cert, NULL );
1749 PK11_FreeSlot( slot );
1751 key = PK11_FindKeyByAnyCert( cert, pin_arg );
1755 SECCertificateUsage certUsage;
1756 PRBool checkSig = PR_TRUE;
1760 *pRetKey = key; /* caller will deal with this */
1762 SECKEY_DestroyPrivateKey( key );
1765 certUsage = certificateUsageSSLServer;
1767 certUsage = certificateUsageSSLClient;
1769 if ( ctx->tc_verify_cert ) {
1772 checkSig = PR_FALSE;
1774 /* may not have a CA cert - ok - ignore SEC_ERROR_UNKNOWN_ISSUER */
1775 status = tlsm_verify_cert( ctx->tc_certdb, cert, pin_arg,
1776 checkSig, certUsage, SEC_ERROR_UNKNOWN_ISSUER );
1777 if ( status == SECSuccess ) {
1781 PRErrorCode errcode = PR_GetError();
1782 Debug( LDAP_DEBUG_ANY,
1783 "TLS: error: could not find the private key for certificate %s - error %d:%s\n",
1784 certname, errcode, PR_ErrorToString( errcode, PR_LANGUAGE_I_DEFAULT ) );
1788 *pRetCert = cert; /* caller will deal with this */
1790 CERT_DestroyCertificate( cert );
1797 tlsm_get_client_auth_data( void *arg, PRFileDesc *fd,
1798 CERTDistNames *caNames, CERTCertificate **pRetCert,
1799 SECKEYPrivateKey **pRetKey )
1801 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1804 /* don't need caNames - this function will call CERT_VerifyCertificateNow
1805 which will verify the cert against the known CAs */
1806 rc = tlsm_find_and_verify_cert_key( ctx, fd, ctx->tc_certname, 0, pRetCert, pRetKey );
1808 Debug( LDAP_DEBUG_ANY,
1809 "TLS: error: unable to perform client certificate authentication for "
1810 "certificate named %s\n", ctx->tc_certname, 0, 0 );
1818 * ctx must have a tc_model that is valid
1819 * certname is in the form [<tokenname>:]<certnickname>
1820 * where <tokenname> is the name of the PKCS11 token
1821 * and <certnickname> is the nickname of the cert/key in
1825 tlsm_clientauth_init( tlsm_ctx *ctx )
1827 SECStatus status = SECFailure;
1830 rc = tlsm_find_and_verify_cert_key( ctx, ctx->tc_model, ctx->tc_certname, 0, NULL, NULL );
1832 Debug( LDAP_DEBUG_ANY,
1833 "TLS: error: unable to set up client certificate authentication for "
1834 "certificate named %s\n", ctx->tc_certname, 0, 0 );
1838 status = SSL_GetClientAuthDataHook( ctx->tc_model,
1839 tlsm_get_client_auth_data,
1842 return ( status == SECSuccess ? 0 : -1 );
1846 * Tear down the TLS subsystem. Should only be called once.
1849 tlsm_destroy( void )
1854 tlsm_ctx_new ( struct ldapoptions *lo )
1858 ctx = LDAP_MALLOC( sizeof (*ctx) );
1861 #ifdef LDAP_R_COMPILE
1862 ldap_pvt_thread_mutex_init( &ctx->tc_refmutex );
1864 ctx->tc_config = &lo->ldo_tls_info; /* pointer into lo structure - must have global scope and must not go away before we can do real init */
1865 ctx->tc_certdb = NULL;
1866 ctx->tc_certname = NULL;
1867 ctx->tc_pin_file = NULL;
1868 ctx->tc_model = NULL;
1869 memset(&ctx->tc_callonce, 0, sizeof(ctx->tc_callonce));
1870 ctx->tc_require_cert = lo->ldo_tls_require_cert;
1871 ctx->tc_verify_cert = PR_FALSE;
1872 ctx->tc_using_pem = PR_FALSE;
1873 ctx->tc_slotname = NULL;
1874 #ifdef HAVE_NSS_INITCONTEXT
1875 ctx->tc_initctx = NULL;
1876 #endif /* HAVE_NSS_INITCONTEXT */
1877 ctx->tc_pem_objs = NULL;
1878 ctx->tc_n_pem_objs = 0;
1880 return (tls_ctx *)ctx;
1884 tlsm_ctx_ref( tls_ctx *ctx )
1886 tlsm_ctx *c = (tlsm_ctx *)ctx;
1887 LDAP_MUTEX_LOCK( &c->tc_refmutex );
1889 LDAP_MUTEX_UNLOCK( &c->tc_refmutex );
1893 tlsm_ctx_free ( tls_ctx *ctx )
1895 tlsm_ctx *c = (tlsm_ctx *)ctx;
1900 LDAP_MUTEX_LOCK( &c->tc_refmutex );
1901 refcount = --c->tc_refcnt;
1902 LDAP_MUTEX_UNLOCK( &c->tc_refmutex );
1906 PR_Close( c->tc_model );
1907 c->tc_certdb = NULL; /* if not the default, may have to clean up */
1908 PL_strfree( c->tc_certname );
1909 c->tc_certname = NULL;
1910 PL_strfree( c->tc_pin_file );
1911 c->tc_pin_file = NULL;
1912 PL_strfree( c->tc_slotname );
1913 tlsm_free_pem_objs( c );
1914 #ifdef HAVE_NSS_INITCONTEXT
1916 NSS_ShutdownContext( c->tc_initctx );
1917 c->tc_initctx = NULL;
1918 #endif /* HAVE_NSS_INITCONTEXT */
1919 #ifdef LDAP_R_COMPILE
1920 ldap_pvt_thread_mutex_destroy( &c->tc_refmutex );
1926 * initialize a new TLS context
1929 tlsm_ctx_init( struct ldapoptions *lo, struct ldaptls *lt, int is_server )
1931 tlsm_ctx *ctx = (tlsm_ctx *)lo->ldo_tls_ctx;
1932 ctx->tc_is_server = is_server;
1938 tlsm_deferred_ctx_init( void *arg )
1940 tlsm_ctx *ctx = (tlsm_ctx *)arg;
1941 PRBool sslv2 = PR_FALSE;
1942 PRBool sslv3 = PR_TRUE;
1943 PRBool tlsv1 = PR_TRUE;
1944 PRBool request_cert = PR_FALSE;
1945 PRInt32 require_cert = PR_FALSE;
1949 if ( tlsm_deferred_init( ctx ) ) {
1950 Debug( LDAP_DEBUG_ANY,
1951 "TLS: could perform TLS system initialization.\n",
1956 ctx->tc_certdb = CERT_GetDefaultCertDB(); /* If there is ever a per-context db, change this */
1958 fd = PR_CreateIOLayerStub( tlsm_layer_id, &tlsm_PR_methods );
1960 ctx->tc_model = SSL_ImportFD( NULL, fd );
1963 if ( !ctx->tc_model ) {
1964 PRErrorCode err = PR_GetError();
1965 Debug( LDAP_DEBUG_ANY,
1966 "TLS: could perform TLS socket I/O layer initialization - error %d:%s.\n",
1967 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
1975 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_SECURITY, PR_TRUE ) ) {
1976 Debug( LDAP_DEBUG_ANY,
1977 "TLS: could not set secure mode on.\n",
1982 lt = ctx->tc_config;
1984 /* default is sslv3 and tlsv1 */
1985 if ( lt->lt_protocol_min ) {
1986 if ( lt->lt_protocol_min > LDAP_OPT_X_TLS_PROTOCOL_SSL3 ) {
1988 } else if ( lt->lt_protocol_min <= LDAP_OPT_X_TLS_PROTOCOL_SSL2 ) {
1990 Debug( LDAP_DEBUG_ANY,
1991 "TLS: warning: minimum TLS protocol level set to "
1992 "include SSLv2 - SSLv2 is insecure - do not use\n", 0, 0, 0 );
1995 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_SSL2, sslv2 ) ) {
1996 Debug( LDAP_DEBUG_ANY,
1997 "TLS: could not set SSLv2 mode on.\n",
2001 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_SSL3, sslv3 ) ) {
2002 Debug( LDAP_DEBUG_ANY,
2003 "TLS: could not set SSLv3 mode on.\n",
2007 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_ENABLE_TLS, tlsv1 ) ) {
2008 Debug( LDAP_DEBUG_ANY,
2009 "TLS: could not set TLSv1 mode on.\n",
2014 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_HANDSHAKE_AS_CLIENT, !ctx->tc_is_server ) ) {
2015 Debug( LDAP_DEBUG_ANY,
2016 "TLS: could not set handshake as client.\n",
2020 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_HANDSHAKE_AS_SERVER, ctx->tc_is_server ) ) {
2021 Debug( LDAP_DEBUG_ANY,
2022 "TLS: could not set handshake as server.\n",
2027 if ( lt->lt_ciphersuite &&
2028 tlsm_parse_ciphers( ctx, lt->lt_ciphersuite )) {
2029 Debug( LDAP_DEBUG_ANY,
2030 "TLS: could not set cipher list %s.\n",
2031 lt->lt_ciphersuite, 0, 0 );
2033 } else if ( tlsm_parse_ciphers( ctx, "DEFAULT" ) ) {
2034 Debug( LDAP_DEBUG_ANY,
2035 "TLS: could not set cipher list DEFAULT.\n",
2040 if ( ctx->tc_require_cert ) {
2041 request_cert = PR_TRUE;
2042 require_cert = SSL_REQUIRE_NO_ERROR;
2043 if ( ctx->tc_require_cert == LDAP_OPT_X_TLS_DEMAND ||
2044 ctx->tc_require_cert == LDAP_OPT_X_TLS_HARD ) {
2045 require_cert = SSL_REQUIRE_ALWAYS;
2047 if ( ctx->tc_require_cert != LDAP_OPT_X_TLS_ALLOW )
2048 ctx->tc_verify_cert = PR_TRUE;
2050 ctx->tc_verify_cert = PR_FALSE;
2053 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_REQUEST_CERTIFICATE, request_cert ) ) {
2054 Debug( LDAP_DEBUG_ANY,
2055 "TLS: could not set request certificate mode.\n",
2060 if ( SECSuccess != SSL_OptionSet( ctx->tc_model, SSL_REQUIRE_CERTIFICATE, require_cert ) ) {
2061 Debug( LDAP_DEBUG_ANY,
2062 "TLS: could not set require certificate mode.\n",
2067 /* set up our cert and key, if any */
2068 if ( lt->lt_certfile ) {
2069 /* if using the PEM module, load the PEM file specified by lt_certfile */
2070 /* otherwise, assume this is the name of a cert already in the db */
2071 if ( ctx->tc_using_pem ) {
2072 /* this sets ctx->tc_certname to the correct value */
2073 int rc = tlsm_add_cert_from_file( ctx, lt->lt_certfile, PR_FALSE, PR_TRUE );
2078 PL_strfree( ctx->tc_certname );
2079 ctx->tc_certname = PL_strdup( lt->lt_certfile );
2083 if ( lt->lt_keyfile ) {
2084 /* if using the PEM module, load the PEM file specified by lt_keyfile */
2085 /* otherwise, assume this is the pininfo for the key */
2086 if ( ctx->tc_using_pem ) {
2087 /* this sets ctx->tc_certname to the correct value */
2088 int rc = tlsm_add_key_from_file( ctx, lt->lt_keyfile );
2093 PL_strfree( ctx->tc_pin_file );
2094 ctx->tc_pin_file = PL_strdup( lt->lt_keyfile );
2098 /* Set up callbacks for use by clients */
2099 if ( !ctx->tc_is_server ) {
2100 if ( SSL_OptionSet( ctx->tc_model, SSL_NO_CACHE, PR_TRUE ) != SECSuccess ) {
2101 PRErrorCode err = PR_GetError();
2102 Debug( LDAP_DEBUG_ANY,
2103 "TLS: error: could not set nocache option for moznss - error %d:%s\n",
2104 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2108 if ( SSL_BadCertHook( ctx->tc_model, tlsm_bad_cert_handler, ctx ) != SECSuccess ) {
2109 PRErrorCode err = PR_GetError();
2110 Debug( LDAP_DEBUG_ANY,
2111 "TLS: error: could not set bad cert handler for moznss - error %d:%s\n",
2112 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2117 since a cert has been specified, assume the client wants to do cert auth
2119 if ( ctx->tc_certname ) {
2120 if ( tlsm_authenticate( ctx, ctx->tc_certname, ctx->tc_pin_file ) ) {
2121 Debug( LDAP_DEBUG_ANY,
2122 "TLS: error: unable to authenticate to the security device for certificate %s\n",
2123 ctx->tc_certname, 0, 0 );
2126 if ( tlsm_clientauth_init( ctx ) ) {
2127 Debug( LDAP_DEBUG_ANY,
2128 "TLS: error: unable to set up client certificate authentication using %s\n",
2129 ctx->tc_certname, 0, 0 );
2133 } else { /* set up secure server */
2135 CERTCertificate *serverCert;
2136 SECKEYPrivateKey *serverKey;
2139 /* must have a certificate for the server to use */
2140 if ( !ctx->tc_certname ) {
2141 Debug( LDAP_DEBUG_ANY,
2142 "TLS: error: no server certificate: must specify a certificate for the server to use\n",
2147 /* authenticate to the server's token - this will do nothing
2148 if the key/cert db is not password protected */
2149 if ( tlsm_authenticate( ctx, ctx->tc_certname, ctx->tc_pin_file ) ) {
2150 Debug( LDAP_DEBUG_ANY,
2151 "TLS: error: unable to authenticate to the security device for certificate %s\n",
2152 ctx->tc_certname, 0, 0 );
2156 /* get the server's key and cert */
2157 if ( tlsm_find_and_verify_cert_key( ctx, ctx->tc_model, ctx->tc_certname, ctx->tc_is_server,
2158 &serverCert, &serverKey ) ) {
2159 Debug( LDAP_DEBUG_ANY,
2160 "TLS: error: unable to find and verify server's cert and key for certificate %s\n",
2161 ctx->tc_certname, 0, 0 );
2165 certKEA = NSS_FindCertKEAType( serverCert );
2166 /* configure the socket to be a secure server socket */
2167 status = SSL_ConfigSecureServer( ctx->tc_model, serverCert, serverKey, certKEA );
2168 /* SSL_ConfigSecureServer copies these */
2169 CERT_DestroyCertificate( serverCert );
2170 SECKEY_DestroyPrivateKey( serverKey );
2172 if ( SECSuccess != status ) {
2173 PRErrorCode err = PR_GetError();
2174 Debug( LDAP_DEBUG_ANY,
2175 "TLS: error: unable to configure secure server using certificate %s - error %d:%s\n",
2176 ctx->tc_certname, err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) );
2181 /* Callback for authenticating certificate */
2182 if ( SSL_AuthCertificateHook( ctx->tc_model, tlsm_auth_cert_handler,
2183 ctx->tc_certdb ) != SECSuccess ) {
2184 PRErrorCode err = PR_GetError();
2185 Debug( LDAP_DEBUG_ANY,
2186 "TLS: error: could not set auth cert handler for moznss - error %d:%s\n",
2187 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2191 if ( SSL_HandshakeCallback( ctx->tc_model, tlsm_handshake_complete_cb, ctx ) ) {
2192 PRErrorCode err = PR_GetError();
2193 Debug( LDAP_DEBUG_ANY,
2194 "TLS: error: could not set handshake callback for moznss - error %d:%s\n",
2195 err, PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ), NULL );
2203 tlsm_session *session;
2204 Sockbuf_IO_Desc *sbiod;
2205 /* there seems to be no portable way to determine if the
2206 sockbuf sd has been set to nonblocking mode - the
2207 call to ber_pvt_socket_set_nonblock() takes place
2208 before the tls socket is set up, so we cannot
2209 intercept that call either.
2210 On systems where fcntl is available, we can just
2211 F_GETFL and test for O_NONBLOCK. On other systems,
2212 we will just see if the IO op returns EAGAIN or EWOULDBLOCK,
2213 and just set this flag */
2216 * NSS tries hard to be backwards compatible with SSLv2 clients, or
2217 * clients that send an SSLv2 client hello. This message is not
2218 * tagged in any way, so NSS has no way to know if the incoming
2219 * message is a valid SSLv2 client hello or just some bogus data
2220 * (or cleartext LDAP). We store the first byte read from the
2221 * client here. The most common case will be a client sending
2222 * LDAP data instead of SSL encrypted LDAP data. This can happen,
2223 * for example, if using ldapsearch -Z - if the starttls fails,
2224 * the client will fallback to plain cleartext LDAP. So if we
2225 * see that the firstbyte is a valid LDAP tag, we can be
2226 * pretty sure this is happening.
2230 * NSS doesn't return SSL_ERROR_WANT_READ, SSL_ERROR_WANT_WRITE, etc.
2231 * when it is blocked, so we have to set a flag in the wrapped send
2232 * and recv calls that tells us what operation NSS was last blocked
2236 #define TLSM_WRITE 2
2240 static struct tls_data *
2241 tlsm_get_pvt_tls_data( PRFileDesc *fd )
2250 myfd = PR_GetIdentitiesLayer( fd, tlsm_layer_id );
2256 p = (struct tls_data *)myfd->secret;
2262 tlsm_is_non_ssl_message( PRFileDesc *fd, ber_tag_t *thebyte )
2267 *thebyte = LBER_DEFAULT;
2270 p = tlsm_get_pvt_tls_data( fd );
2271 if ( p == NULL || p->sbiod == NULL ) {
2275 if ( p->firsttag == LBER_SEQUENCE ) {
2277 *thebyte = p->firsttag;
2285 static tls_session *
2286 tlsm_session_new ( tls_ctx * ctx, int is_server )
2288 tlsm_ctx *c = (tlsm_ctx *)ctx;
2289 tlsm_session *session;
2294 c->tc_is_server = is_server;
2295 status = PR_CallOnceWithArg( &c->tc_callonce, tlsm_deferred_ctx_init, c );
2296 if ( PR_SUCCESS != status ) {
2297 PRErrorCode err = PR_GetError();
2298 Debug( LDAP_DEBUG_ANY,
2299 "TLS: error: could not initialize moznss security context - error %d:%s\n",
2300 err, PR_ErrorToString(err, PR_LANGUAGE_I_DEFAULT), NULL );
2304 fd = PR_CreateIOLayerStub( tlsm_layer_id, &tlsm_PR_methods );
2309 session = SSL_ImportFD( c->tc_model, fd );
2316 /* 0 means use the defaults here */
2317 SSL_ConfigServerSessionIDCache( 0, 0, 0, NULL );
2320 rc = SSL_ResetHandshake( session, is_server );
2322 PRErrorCode err = PR_GetError();
2323 Debug( LDAP_DEBUG_TRACE,
2324 "TLS: error: new session - reset handshake failure %d - error %d:%s\n",
2326 err ? PR_ErrorToString( err, PR_LANGUAGE_I_DEFAULT ) : "unknown" );
2328 PR_Close( session );
2332 return (tls_session *)session;
2336 tlsm_session_accept_or_connect( tls_session *session, int is_accept )
2338 tlsm_session *s = (tlsm_session *)session;
2339 int rc = SSL_ForceHandshake( s );
2340 const char *op = is_accept ? "accept" : "connect";
2343 PRErrorCode err = PR_GetError();
2345 if ( err == PR_WOULD_BLOCK_ERROR ) {
2346 ber_tag_t thetag = LBER_DEFAULT;
2347 /* see if we are blocked because of a bogus packet */
2348 if ( tlsm_is_non_ssl_message( s, &thetag ) ) { /* see if we received a non-SSL message */
2349 Debug( LDAP_DEBUG_ANY,
2350 "TLS: error: %s - error - received non-SSL message [0x%x]\n",
2351 op, (unsigned int)thetag, 0 );
2352 /* reset error to something more descriptive */
2353 PR_SetError( SSL_ERROR_RX_MALFORMED_HELLO_REQUEST, EPROTO );
2356 Debug( LDAP_DEBUG_ANY,
2357 "TLS: error: %s - force handshake failure: errno %d - moznss error %d\n",
2365 tlsm_session_accept( tls_session *session )
2367 return tlsm_session_accept_or_connect( session, 1 );
2371 tlsm_session_connect( LDAP *ld, tls_session *session )
2373 return tlsm_session_accept_or_connect( session, 0 );
2377 tlsm_session_upflags( Sockbuf *sb, tls_session *session, int rc )
2379 int prerror = PR_GetError();
2381 if ( ( prerror == PR_PENDING_INTERRUPT_ERROR ) || ( prerror == PR_WOULD_BLOCK_ERROR ) ) {
2382 tlsm_session *s = (tlsm_session *)session;
2383 struct tls_data *p = tlsm_get_pvt_tls_data( s );
2385 if ( p && ( p->io_flag == TLSM_READ ) ) {
2386 sb->sb_trans_needs_read = 1;
2388 } else if ( p && ( p->io_flag == TLSM_WRITE ) ) {
2389 sb->sb_trans_needs_write = 1;
2398 tlsm_session_errmsg( tls_session *sess, int rc, char *buf, size_t len )
2401 int prerror = PR_GetError();
2403 i = PR_GetErrorTextLength();
2405 char *msg = LDAP_MALLOC( i+1 );
2406 PR_GetErrorText( msg );
2407 memcpy( buf, msg, len );
2410 PR_GetErrorText( buf );
2411 } else if ( prerror ) {
2412 i = PR_snprintf( buf, len, "TLS error %d:%s",
2413 prerror, PR_ErrorToString( prerror, PR_LANGUAGE_I_DEFAULT ) );
2416 return ( i > 0 ) ? buf : NULL;
2420 tlsm_session_my_dn( tls_session *session, struct berval *der_dn )
2422 tlsm_session *s = (tlsm_session *)session;
2423 CERTCertificate *cert;
2425 cert = SSL_LocalCertificate( s );
2426 if (!cert) return LDAP_INVALID_CREDENTIALS;
2428 der_dn->bv_val = (char *)cert->derSubject.data;
2429 der_dn->bv_len = cert->derSubject.len;
2430 CERT_DestroyCertificate( cert );
2435 tlsm_session_peer_dn( tls_session *session, struct berval *der_dn )
2437 tlsm_session *s = (tlsm_session *)session;
2438 CERTCertificate *cert;
2440 cert = SSL_PeerCertificate( s );
2441 if (!cert) return LDAP_INVALID_CREDENTIALS;
2443 der_dn->bv_val = (char *)cert->derSubject.data;
2444 der_dn->bv_len = cert->derSubject.len;
2445 CERT_DestroyCertificate( cert );
2449 /* what kind of hostname were we given? */
2455 tlsm_session_chkhost( LDAP *ld, tls_session *session, const char *name_in )
2457 tlsm_session *s = (tlsm_session *)session;
2458 CERTCertificate *cert;
2459 const char *name, *domain = NULL, *ptr;
2460 int ret, ntype = IS_DNS, nlen, dlen;
2461 #ifdef LDAP_PF_INET6
2462 struct in6_addr addr;
2464 struct in_addr addr;
2469 if( ldap_int_hostname &&
2470 ( !name_in || !strcasecmp( name_in, "localhost" ) ) )
2472 name = ldap_int_hostname;
2476 nlen = strlen( name );
2478 cert = SSL_PeerCertificate( s );
2480 Debug( LDAP_DEBUG_ANY,
2481 "TLS: unable to get peer certificate.\n",
2483 /* if this was a fatal condition, things would have
2484 * aborted long before now.
2486 return LDAP_SUCCESS;
2489 #ifdef LDAP_PF_INET6
2490 if (name[0] == '[' && strchr(name, ']')) {
2491 char *n2 = ldap_strdup(name+1);
2492 *strchr(n2, ']') = 0;
2493 if (inet_pton(AF_INET6, n2, &addr))
2498 if ((ptr = strrchr(name, '.')) && isdigit((unsigned char)ptr[1])) {
2499 if (inet_aton(name, (struct in_addr *)&addr)) ntype = IS_IP4;
2501 if (ntype == IS_DNS ) {
2502 domain = strchr( name, '.' );
2504 dlen = nlen - ( domain - name );
2507 ret = LDAP_LOCAL_ERROR;
2509 rv = CERT_FindCertExtension( cert, SEC_OID_X509_SUBJECT_ALT_NAME,
2511 if ( rv == SECSuccess && altname.data ) {
2513 CERTGeneralName *names, *cur;
2515 arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
2517 ret = LDAP_NO_MEMORY;
2521 names = cur = CERT_DecodeAltNameExtension(arena, &altname);
2530 if ( !cur->name.other.len ) continue;
2532 host = (char *)cur->name.other.data;
2533 hlen = cur->name.other.len;
2535 if ( cur->type == certDNSName ) {
2536 if ( ntype != IS_DNS ) continue;
2538 /* is this an exact match? */
2539 if ( nlen == hlen && !strncasecmp( name, host, nlen )) {
2544 /* is this a wildcard match? */
2545 if ( domain && host[0] == '*' && host[1] == '.' &&
2546 dlen == hlen-1 && !strncasecmp( domain, host+1, dlen )) {
2550 } else if ( cur->type == certIPAddress ) {
2551 if ( ntype == IS_DNS ) continue;
2553 #ifdef LDAP_PF_INET6
2554 if (ntype == IS_IP6 && hlen != sizeof(struct in6_addr)) {
2558 if (ntype == IS_IP4 && hlen != sizeof(struct in_addr)) {
2561 if (!memcmp(host, &addr, hlen)) {
2566 } while (( cur = CERT_GetNextGeneralName( cur )) != names );
2568 PORT_FreeArena( arena, PR_FALSE );
2569 SECITEM_FreeItem( &altname, PR_FALSE );
2571 /* no altnames matched, try the CN */
2572 if ( ret != LDAP_SUCCESS ) {
2573 /* find the last CN */
2574 CERTRDN *rdn, **rdns;
2575 CERTAVA *lastava = NULL;
2579 rdns = cert->subject.rdns;
2580 while ( rdns && ( rdn = *rdns++ )) {
2581 CERTAVA *ava, **avas = rdn->avas;
2582 while ( avas && ( ava = *avas++ )) {
2583 if ( CERT_GetAVATag( ava ) == SEC_OID_AVA_COMMON_NAME )
2588 SECItem *av = CERT_DecodeAVAValue( &lastava->value );
2590 if ( av->len == nlen && !strncasecmp( name, (char *)av->data, nlen )) {
2592 } else if ( av->data[0] == '*' && av->data[1] == '.' &&
2593 domain && dlen == av->len - 1 && !strncasecmp( name,
2594 (char *)(av->data+1), dlen )) {
2598 if ( len >= sizeof(buf) )
2599 len = sizeof(buf)-1;
2600 memcpy( buf, av->data, len );
2603 SECITEM_FreeItem( av, PR_TRUE );
2606 if ( ret != LDAP_SUCCESS ) {
2607 Debug( LDAP_DEBUG_ANY, "TLS: hostname (%s) does not match "
2608 "common name in certificate (%s).\n",
2610 ret = LDAP_CONNECT_ERROR;
2611 if ( ld->ld_error ) {
2612 LDAP_FREE( ld->ld_error );
2614 ld->ld_error = LDAP_STRDUP(
2615 _("TLS: hostname does not match CN in peer certificate"));
2620 CERT_DestroyCertificate( cert );
2625 tlsm_session_strength( tls_session *session )
2627 tlsm_session *s = (tlsm_session *)session;
2630 rc = SSL_SecurityStatus( s, NULL, NULL, NULL, &keySize,
2632 return rc ? 0 : keySize;
2636 * TLS support for LBER Sockbufs
2639 static PRStatus PR_CALLBACK
2640 tlsm_PR_Close(PRFileDesc *fd)
2642 int rc = PR_SUCCESS;
2644 /* we don't need to actually close anything here, just
2645 pop our io layer off the stack */
2646 fd->secret = NULL; /* must have been freed before calling PR_Close */
2648 fd = PR_PopIOLayer( fd, tlsm_layer_id );
2649 /* if we are not the last layer, pass the close along */
2654 rc = fd->methods->close( fd );
2657 /* we are the last layer - just call our dtor */
2664 static PRStatus PR_CALLBACK
2665 tlsm_PR_Shutdown(PRFileDesc *fd, PRShutdownHow how)
2667 int rc = PR_SUCCESS;
2670 rc = PR_Shutdown( fd->lower, how );
2676 static int PR_CALLBACK
2677 tlsm_PR_Recv(PRFileDesc *fd, void *buf, PRInt32 len, PRIntn flags,
2678 PRIntervalTime timeout)
2683 if ( buf == NULL || len <= 0 ) return 0;
2685 p = tlsm_get_pvt_tls_data( fd );
2687 if ( p == NULL || p->sbiod == NULL ) {
2691 rc = LBER_SBIOD_READ_NEXT( p->sbiod, buf, len );
2693 tlsm_map_error( errno );
2694 if ( errno == EAGAIN || errno == EWOULDBLOCK ) {
2695 p->nonblock = PR_TRUE; /* fd is using non-blocking io */
2696 } else if ( errno ) { /* real error */
2697 Debug( LDAP_DEBUG_TRACE,
2698 "TLS: error: tlsm_PR_Recv returned %d - error %d:%s\n",
2699 rc, errno, STRERROR(errno) );
2701 } else if ( ( rc > 0 ) && ( len > 0 ) && ( p->firsttag == LBER_DEFAULT ) ) {
2702 p->firsttag = (ber_tag_t)*((char *)buf);
2704 p->io_flag = TLSM_READ;
2709 static int PR_CALLBACK
2710 tlsm_PR_Send(PRFileDesc *fd, const void *buf, PRInt32 len, PRIntn flags,
2711 PRIntervalTime timeout)
2716 if ( buf == NULL || len <= 0 ) return 0;
2718 p = tlsm_get_pvt_tls_data( fd );
2720 if ( p == NULL || p->sbiod == NULL ) {
2724 rc = LBER_SBIOD_WRITE_NEXT( p->sbiod, (char *)buf, len );
2726 tlsm_map_error( errno );
2727 if ( errno == EAGAIN || errno == EWOULDBLOCK ) {
2728 p->nonblock = PR_TRUE;
2729 } else if ( errno ) { /* real error */
2730 Debug( LDAP_DEBUG_TRACE,
2731 "TLS: error: tlsm_PR_Send returned %d - error %d:%s\n",
2732 rc, errno, STRERROR(errno) );
2735 p->io_flag = TLSM_WRITE;
2740 static int PR_CALLBACK
2741 tlsm_PR_Read(PRFileDesc *fd, void *buf, PRInt32 len)
2743 return tlsm_PR_Recv( fd, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
2746 static int PR_CALLBACK
2747 tlsm_PR_Write(PRFileDesc *fd, const void *buf, PRInt32 len)
2749 return tlsm_PR_Send( fd, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
2752 static PRStatus PR_CALLBACK
2753 tlsm_PR_GetPeerName(PRFileDesc *fd, PRNetAddr *addr)
2758 p = tlsm_get_pvt_tls_data( fd );
2760 if ( p == NULL || p->sbiod == NULL ) {
2763 len = sizeof(PRNetAddr);
2764 return getpeername( p->sbiod->sbiod_sb->sb_fd, (struct sockaddr *)addr, &len );
2767 static PRStatus PR_CALLBACK
2768 tlsm_PR_GetSocketOption(PRFileDesc *fd, PRSocketOptionData *data)
2771 p = tlsm_get_pvt_tls_data( fd );
2773 if ( p == NULL || data == NULL ) {
2777 /* only the nonblocking option is supported at this time
2778 MozNSS SSL code needs it */
2779 if ( data->option != PR_SockOpt_Nonblocking ) {
2780 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2784 int flags = fcntl( p->sbiod->sbiod_sb->sb_fd, F_GETFL );
2785 data->value.non_blocking = (flags & O_NONBLOCK) ? PR_TRUE : PR_FALSE;
2787 data->value.non_blocking = p->nonblock;
2792 static PRStatus PR_CALLBACK
2795 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2799 static PRFileDesc * PR_CALLBACK
2802 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2806 static PRInt16 PR_CALLBACK
2809 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2813 static PRInt32 PR_CALLBACK
2816 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2820 static PRInt64 PR_CALLBACK
2825 PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
2830 static const PRIOMethods tlsm_PR_methods = {
2832 tlsm_PR_Close, /* close */
2833 tlsm_PR_Read, /* read */
2834 tlsm_PR_Write, /* write */
2835 tlsm_PR_i32_unimp, /* available */
2836 tlsm_PR_i64_unimp, /* available64 */
2837 tlsm_PR_prs_unimp, /* fsync */
2838 tlsm_PR_i32_unimp, /* seek */
2839 tlsm_PR_i64_unimp, /* seek64 */
2840 tlsm_PR_prs_unimp, /* fileInfo */
2841 tlsm_PR_prs_unimp, /* fileInfo64 */
2842 tlsm_PR_i32_unimp, /* writev */
2843 tlsm_PR_prs_unimp, /* connect */
2844 tlsm_PR_pfd_unimp, /* accept */
2845 tlsm_PR_prs_unimp, /* bind */
2846 tlsm_PR_prs_unimp, /* listen */
2847 (PRShutdownFN)tlsm_PR_Shutdown, /* shutdown */
2848 tlsm_PR_Recv, /* recv */
2849 tlsm_PR_Send, /* send */
2850 tlsm_PR_i32_unimp, /* recvfrom */
2851 tlsm_PR_i32_unimp, /* sendto */
2852 (PRPollFN)tlsm_PR_i16_unimp, /* poll */
2853 tlsm_PR_i32_unimp, /* acceptread */
2854 tlsm_PR_i32_unimp, /* transmitfile */
2855 tlsm_PR_prs_unimp, /* getsockname */
2856 tlsm_PR_GetPeerName, /* getpeername */
2857 tlsm_PR_i32_unimp, /* getsockopt OBSOLETE */
2858 tlsm_PR_i32_unimp, /* setsockopt OBSOLETE */
2859 tlsm_PR_GetSocketOption, /* getsocketoption */
2860 tlsm_PR_i32_unimp, /* setsocketoption */
2861 tlsm_PR_i32_unimp, /* Send a (partial) file with header/trailer*/
2862 (PRConnectcontinueFN)tlsm_PR_prs_unimp, /* connectcontinue */
2863 tlsm_PR_i32_unimp, /* reserved for future use */
2864 tlsm_PR_i32_unimp, /* reserved for future use */
2865 tlsm_PR_i32_unimp, /* reserved for future use */
2866 tlsm_PR_i32_unimp /* reserved for future use */
2870 * Initialize TLS subsystem. Should be called only once.
2871 * See tlsm_deferred_init for the bulk of the init process
2876 char *nofork = PR_GetEnv( "NSS_STRICT_NOFORK" );
2880 tlsm_layer_id = PR_GetUniqueIdentity( "OpenLDAP" );
2883 * There are some applications that acquire a crypto context in the parent process
2884 * and expect that crypto context to work after a fork(). This does not work
2885 * with NSS using strict PKCS11 compliance mode. We set this environment
2886 * variable here to tell the software encryption module/token to allow crypto
2887 * contexts to persist across a fork(). However, if you are using some other
2888 * module or encryption device that supports and expects full PKCS11 semantics,
2889 * the only recourse is to rewrite the application with atfork() handlers to save
2890 * the crypto context in the parent and restore (and SECMOD_RestartModules) the
2891 * context in the child.
2894 PR_SetEnv( "NSS_STRICT_NOFORK=DISABLED" );
2901 tlsm_sb_setup( Sockbuf_IO_Desc *sbiod, void *arg )
2904 tlsm_session *session = arg;
2907 assert( sbiod != NULL );
2909 p = LBER_MALLOC( sizeof( *p ) );
2914 fd = PR_GetIdentitiesLayer( session, tlsm_layer_id );
2920 fd->secret = (PRFilePrivate *)p;
2921 p->session = session;
2923 p->firsttag = LBER_DEFAULT;
2924 sbiod->sbiod_pvt = p;
2929 tlsm_sb_remove( Sockbuf_IO_Desc *sbiod )
2933 assert( sbiod != NULL );
2934 assert( sbiod->sbiod_pvt != NULL );
2936 p = (struct tls_data *)sbiod->sbiod_pvt;
2937 PR_Close( p->session );
2938 LBER_FREE( sbiod->sbiod_pvt );
2939 sbiod->sbiod_pvt = NULL;
2944 tlsm_sb_close( Sockbuf_IO_Desc *sbiod )
2948 assert( sbiod != NULL );
2949 assert( sbiod->sbiod_pvt != NULL );
2951 p = (struct tls_data *)sbiod->sbiod_pvt;
2952 PR_Shutdown( p->session, PR_SHUTDOWN_BOTH );
2957 tlsm_sb_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
2961 assert( sbiod != NULL );
2962 assert( sbiod->sbiod_pvt != NULL );
2964 p = (struct tls_data *)sbiod->sbiod_pvt;
2966 if ( opt == LBER_SB_OPT_GET_SSL ) {
2967 *((tlsm_session **)arg) = p->session;
2970 } else if ( opt == LBER_SB_OPT_DATA_READY ) {
2971 if ( p && ( SSL_DataPending( p->session ) > 0 ) ) {
2977 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
2981 tlsm_sb_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
2987 assert( sbiod != NULL );
2988 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
2990 p = (struct tls_data *)sbiod->sbiod_pvt;
2992 ret = PR_Recv( p->session, buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
2994 err = PR_GetError();
2995 if ( err == PR_PENDING_INTERRUPT_ERROR || err == PR_WOULD_BLOCK_ERROR ) {
2996 sbiod->sbiod_sb->sb_trans_needs_read = 1;
2997 sock_errset(EWOULDBLOCK);
3000 sbiod->sbiod_sb->sb_trans_needs_read = 0;
3006 tlsm_sb_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
3012 assert( sbiod != NULL );
3013 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
3015 p = (struct tls_data *)sbiod->sbiod_pvt;
3017 ret = PR_Send( p->session, (char *)buf, len, 0, PR_INTERVAL_NO_TIMEOUT );
3019 err = PR_GetError();
3020 if ( err == PR_PENDING_INTERRUPT_ERROR || err == PR_WOULD_BLOCK_ERROR ) {
3021 sbiod->sbiod_sb->sb_trans_needs_write = 1;
3022 sock_errset(EWOULDBLOCK);
3026 sbiod->sbiod_sb->sb_trans_needs_write = 0;
3031 static Sockbuf_IO tlsm_sbio =
3033 tlsm_sb_setup, /* sbi_setup */
3034 tlsm_sb_remove, /* sbi_remove */
3035 tlsm_sb_ctrl, /* sbi_ctrl */
3036 tlsm_sb_read, /* sbi_read */
3037 tlsm_sb_write, /* sbi_write */
3038 tlsm_sb_close /* sbi_close */
3041 tls_impl ldap_int_tls_impl = {
3053 tlsm_session_connect,
3054 tlsm_session_accept,
3055 tlsm_session_upflags,
3056 tlsm_session_errmsg,
3058 tlsm_session_peer_dn,
3059 tlsm_session_chkhost,
3060 tlsm_session_strength,
3064 #ifdef LDAP_R_COMPILE
3073 #endif /* HAVE_MOZNSS */