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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /libraries/libldap/tls2.c
parentInitial commit. (diff)
downloadopenldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz
openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libraries/libldap/tls2.c')
-rw-r--r--libraries/libldap/tls2.c1675
1 files changed, 1675 insertions, 0 deletions
diff --git a/libraries/libldap/tls2.c b/libraries/libldap/tls2.c
new file mode 100644
index 0000000..4a5d42b
--- /dev/null
+++ b/libraries/libldap/tls2.c
@@ -0,0 +1,1675 @@
+/* tls.c - Handle tls/ssl. */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS: restructured by Howard Chu.
+ */
+
+#include "portable.h"
+#include "ldap_config.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/errno.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/ctype.h>
+#include <ac/time.h>
+#include <ac/unistd.h>
+#include <ac/param.h>
+#include <ac/dirent.h>
+
+#include "ldap-int.h"
+
+#ifdef HAVE_TLS
+
+#include "ldap-tls.h"
+
+static tls_impl *tls_imp = &ldap_int_tls_impl;
+#define HAS_TLS( sb ) ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO, \
+ (void *)tls_imp->ti_sbio )
+
+#endif /* HAVE_TLS */
+
+/* RFC2459 minimum required set of supported attribute types
+ * in a certificate DN
+ */
+typedef struct oid_name {
+ struct berval oid;
+ struct berval name;
+} oid_name;
+
+static oid_name oids[] = {
+ { BER_BVC("2.5.4.3"), BER_BVC("cn") },
+ { BER_BVC("2.5.4.4"), BER_BVC("sn") },
+ { BER_BVC("2.5.4.6"), BER_BVC("c") },
+ { BER_BVC("2.5.4.7"), BER_BVC("l") },
+ { BER_BVC("2.5.4.8"), BER_BVC("st") },
+ { BER_BVC("2.5.4.10"), BER_BVC("o") },
+ { BER_BVC("2.5.4.11"), BER_BVC("ou") },
+ { BER_BVC("2.5.4.12"), BER_BVC("title") },
+ { BER_BVC("2.5.4.41"), BER_BVC("name") },
+ { BER_BVC("2.5.4.42"), BER_BVC("givenName") },
+ { BER_BVC("2.5.4.43"), BER_BVC("initials") },
+ { BER_BVC("2.5.4.44"), BER_BVC("generationQualifier") },
+ { BER_BVC("2.5.4.46"), BER_BVC("dnQualifier") },
+ { BER_BVC("1.2.840.113549.1.9.1"), BER_BVC("email") },
+ { BER_BVC("0.9.2342.19200300.100.1.25"), BER_BVC("dc") },
+ { BER_BVNULL, BER_BVNULL }
+};
+
+#ifdef HAVE_TLS
+
+LDAP_F(int) ldap_pvt_tls_check_hostname LDAP_P(( LDAP *ld, void *s, const char *name_in ));
+LDAP_F(int) ldap_pvt_tls_get_peercert LDAP_P(( void *s, struct berval *der ));
+
+void
+ldap_pvt_tls_ctx_free ( void *c )
+{
+ if ( !c ) return;
+ tls_imp->ti_ctx_free( c );
+}
+
+static void
+tls_ctx_ref( tls_ctx *ctx )
+{
+ if ( !ctx ) return;
+
+ tls_imp->ti_ctx_ref( ctx );
+}
+
+#ifdef LDAP_R_COMPILE
+/*
+ * an extra mutex for the default ctx.
+ */
+static ldap_pvt_thread_mutex_t tls_def_ctx_mutex;
+#endif
+
+void
+ldap_int_tls_destroy( struct ldapoptions *lo )
+{
+ if ( lo->ldo_tls_ctx ) {
+ ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
+ lo->ldo_tls_ctx = NULL;
+ }
+
+ if ( lo->ldo_tls_certfile ) {
+ LDAP_FREE( lo->ldo_tls_certfile );
+ lo->ldo_tls_certfile = NULL;
+ }
+ if ( lo->ldo_tls_keyfile ) {
+ LDAP_FREE( lo->ldo_tls_keyfile );
+ lo->ldo_tls_keyfile = NULL;
+ }
+ if ( lo->ldo_tls_dhfile ) {
+ LDAP_FREE( lo->ldo_tls_dhfile );
+ lo->ldo_tls_dhfile = NULL;
+ }
+ if ( lo->ldo_tls_ecname ) {
+ LDAP_FREE( lo->ldo_tls_ecname );
+ lo->ldo_tls_ecname = NULL;
+ }
+ if ( lo->ldo_tls_cacertfile ) {
+ LDAP_FREE( lo->ldo_tls_cacertfile );
+ lo->ldo_tls_cacertfile = NULL;
+ }
+ if ( lo->ldo_tls_cacertdir ) {
+ LDAP_FREE( lo->ldo_tls_cacertdir );
+ lo->ldo_tls_cacertdir = NULL;
+ }
+ if ( lo->ldo_tls_ciphersuite ) {
+ LDAP_FREE( lo->ldo_tls_ciphersuite );
+ lo->ldo_tls_ciphersuite = NULL;
+ }
+ if ( lo->ldo_tls_crlfile ) {
+ LDAP_FREE( lo->ldo_tls_crlfile );
+ lo->ldo_tls_crlfile = NULL;
+ }
+ /* tls_pin_hashalg and tls_pin share the same buffer */
+ if ( lo->ldo_tls_pin_hashalg ) {
+ LDAP_FREE( lo->ldo_tls_pin_hashalg );
+ lo->ldo_tls_pin_hashalg = NULL;
+ } else {
+ LDAP_FREE( lo->ldo_tls_pin.bv_val );
+ }
+ BER_BVZERO( &lo->ldo_tls_pin );
+}
+
+/*
+ * Tear down the TLS subsystem. Should only be called once.
+ */
+void
+ldap_pvt_tls_destroy( void )
+{
+ struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
+
+ ldap_int_tls_destroy( lo );
+
+ tls_imp->ti_tls_destroy();
+}
+
+/*
+ * Initialize a particular TLS implementation.
+ * Called once per implementation.
+ */
+static int
+tls_init(tls_impl *impl, int do_threads )
+{
+ static int tls_initialized = 0;
+
+ if ( !tls_initialized++ ) {
+#ifdef LDAP_R_COMPILE
+ ldap_pvt_thread_mutex_init( &tls_def_ctx_mutex );
+#endif
+ }
+
+ if ( impl->ti_inited++ ) return 0;
+
+ if ( do_threads ) {
+#ifdef LDAP_R_COMPILE
+ impl->ti_thr_init();
+#endif
+ }
+
+ return impl->ti_tls_init();
+}
+
+/*
+ * Initialize TLS subsystem. Called once per implementation.
+ */
+int
+ldap_pvt_tls_init( int do_threads )
+{
+ return tls_init( tls_imp, do_threads );
+}
+
+/*
+ * initialize a new TLS context
+ */
+static int
+ldap_int_tls_init_ctx( struct ldapoptions *lo, int is_server )
+{
+ int rc = 0;
+ tls_impl *ti = tls_imp;
+ struct ldaptls lts = lo->ldo_tls_info;
+
+ if ( lo->ldo_tls_ctx )
+ return 0;
+
+ tls_init( ti, 0 );
+
+ if ( is_server && !lts.lt_certfile && !lts.lt_keyfile &&
+ !lts.lt_cacertfile && !lts.lt_cacertdir &&
+ !lts.lt_cacert.bv_val && !lts.lt_cert.bv_val &&
+ !lts.lt_key.bv_val ) {
+ /* minimum configuration not provided */
+ return LDAP_NOT_SUPPORTED;
+ }
+
+#ifdef HAVE_EBCDIC
+ /* This ASCII/EBCDIC handling is a real pain! */
+ if ( lts.lt_ciphersuite ) {
+ lts.lt_ciphersuite = LDAP_STRDUP( lts.lt_ciphersuite );
+ __atoe( lts.lt_ciphersuite );
+ }
+ if ( lts.lt_cacertfile ) {
+ lts.lt_cacertfile = LDAP_STRDUP( lts.lt_cacertfile );
+ __atoe( lts.lt_cacertfile );
+ }
+ if ( lts.lt_certfile ) {
+ lts.lt_certfile = LDAP_STRDUP( lts.lt_certfile );
+ __atoe( lts.lt_certfile );
+ }
+ if ( lts.lt_keyfile ) {
+ lts.lt_keyfile = LDAP_STRDUP( lts.lt_keyfile );
+ __atoe( lts.lt_keyfile );
+ }
+ if ( lts.lt_crlfile ) {
+ lts.lt_crlfile = LDAP_STRDUP( lts.lt_crlfile );
+ __atoe( lts.lt_crlfile );
+ }
+ if ( lts.lt_cacertdir ) {
+ lts.lt_cacertdir = LDAP_STRDUP( lts.lt_cacertdir );
+ __atoe( lts.lt_cacertdir );
+ }
+ if ( lts.lt_dhfile ) {
+ lts.lt_dhfile = LDAP_STRDUP( lts.lt_dhfile );
+ __atoe( lts.lt_dhfile );
+ }
+ if ( lts.lt_ecname ) {
+ lts.lt_ecname = LDAP_STRDUP( lts.lt_ecname );
+ __atoe( lts.lt_ecname );
+ }
+#endif
+ lo->ldo_tls_ctx = ti->ti_ctx_new( lo );
+ if ( lo->ldo_tls_ctx == NULL ) {
+ Debug0( LDAP_DEBUG_ANY,
+ "TLS: could not allocate default ctx.\n" );
+ rc = -1;
+ goto error_exit;
+ }
+
+ rc = ti->ti_ctx_init( lo, &lts, is_server );
+
+error_exit:
+ if ( rc < 0 && lo->ldo_tls_ctx != NULL ) {
+ ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
+ lo->ldo_tls_ctx = NULL;
+ }
+#ifdef HAVE_EBCDIC
+ LDAP_FREE( lts.lt_ciphersuite );
+ LDAP_FREE( lts.lt_cacertfile );
+ LDAP_FREE( lts.lt_certfile );
+ LDAP_FREE( lts.lt_keyfile );
+ LDAP_FREE( lts.lt_crlfile );
+ LDAP_FREE( lts.lt_cacertdir );
+ LDAP_FREE( lts.lt_dhfile );
+ LDAP_FREE( lts.lt_ecname );
+#endif
+ return rc;
+}
+
+/*
+ * initialize the default context
+ */
+int
+ldap_pvt_tls_init_def_ctx( int is_server )
+{
+ struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
+ int rc;
+ LDAP_MUTEX_LOCK( &tls_def_ctx_mutex );
+ rc = ldap_int_tls_init_ctx( lo, is_server );
+ LDAP_MUTEX_UNLOCK( &tls_def_ctx_mutex );
+ return rc;
+}
+
+static tls_session *
+alloc_handle( void *ctx_arg, int is_server )
+{
+ tls_ctx *ctx;
+ tls_session *ssl;
+
+ if ( ctx_arg ) {
+ ctx = ctx_arg;
+ } else {
+ struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
+ if ( ldap_pvt_tls_init_def_ctx( is_server ) < 0 ) return NULL;
+ ctx = lo->ldo_tls_ctx;
+ }
+
+ ssl = tls_imp->ti_session_new( ctx, is_server );
+ if ( ssl == NULL ) {
+ Debug0( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n" );
+ return NULL;
+ }
+ return ssl;
+}
+
+static int
+update_flags( Sockbuf *sb, tls_session * ssl, int rc )
+{
+ sb->sb_trans_needs_read = 0;
+ sb->sb_trans_needs_write = 0;
+
+ return tls_imp->ti_session_upflags( sb, ssl, rc );
+}
+
+/*
+ * Call this to do a TLS connect on a sockbuf. ctx_arg can be
+ * a SSL_CTX * or NULL, in which case the default ctx is used.
+ *
+ * Return value:
+ *
+ * 0 - Success. Connection is ready for communication.
+ * <0 - Error. Can't create a TLS stream.
+ * >0 - Partial success.
+ * Do a select (using information from lber_pvt_sb_needs_{read,write}
+ * and call again.
+ */
+
+static int
+ldap_int_tls_connect( LDAP *ld, LDAPConn *conn, const char *host )
+{
+ Sockbuf *sb = conn->lconn_sb;
+ int err;
+ tls_session *ssl = NULL;
+ const char *sni = host;
+
+ if ( HAS_TLS( sb )) {
+ ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
+ } else {
+ struct ldapoptions *lo;
+ tls_ctx *ctx;
+
+ ctx = ld->ld_options.ldo_tls_ctx;
+
+ ssl = alloc_handle( ctx, 0 );
+
+ if ( ssl == NULL ) return -1;
+
+#ifdef LDAP_DEBUG
+ ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
+ LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
+#endif
+ ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
+ LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
+
+ lo = LDAP_INT_GLOBAL_OPT();
+ if( ctx == NULL ) {
+ ctx = lo->ldo_tls_ctx;
+ ld->ld_options.ldo_tls_ctx = ctx;
+ tls_ctx_ref( ctx );
+ }
+ if ( ld->ld_options.ldo_tls_connect_cb )
+ ld->ld_options.ldo_tls_connect_cb( ld, ssl, ctx,
+ ld->ld_options.ldo_tls_connect_arg );
+ if ( lo && lo->ldo_tls_connect_cb && lo->ldo_tls_connect_cb !=
+ ld->ld_options.ldo_tls_connect_cb )
+ lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
+ }
+
+ /* pass hostname for SNI, but only if it's an actual name
+ * and not a numeric address
+ */
+ {
+ int numeric = 1;
+ unsigned char *c;
+ for ( c = (unsigned char *)sni; *c; c++ ) {
+ if ( *c == ':' ) /* IPv6 address */
+ break;
+ if ( *c == '.' )
+ continue;
+ if ( !isdigit( *c )) {
+ numeric = 0;
+ break;
+ }
+ }
+ if ( numeric )
+ sni = NULL;
+ }
+ err = tls_imp->ti_session_connect( ld, ssl, sni );
+
+#ifdef HAVE_WINSOCK
+ errno = WSAGetLastError();
+#endif
+
+ if ( err == 0 ) {
+ err = ldap_pvt_tls_check_hostname( ld, ssl, host );
+ }
+
+ if ( err < 0 )
+ {
+ char buf[256], *msg;
+ if ( update_flags( sb, ssl, err )) {
+ return 1;
+ }
+
+ msg = tls_imp->ti_session_errmsg( ssl, err, buf, sizeof(buf) );
+ if ( msg ) {
+ if ( ld->ld_error ) {
+ LDAP_FREE( ld->ld_error );
+ }
+ ld->ld_error = LDAP_STRDUP( msg );
+#ifdef HAVE_EBCDIC
+ if ( ld->ld_error ) __etoa(ld->ld_error);
+#endif
+ }
+
+ Debug1( LDAP_DEBUG_ANY,"TLS: can't connect: %s.\n",
+ ld->ld_error ? ld->ld_error : "" );
+
+ ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
+ LBER_SBIOD_LEVEL_TRANSPORT );
+#ifdef LDAP_DEBUG
+ ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
+ LBER_SBIOD_LEVEL_TRANSPORT );
+#endif
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+ldap_pvt_tls_connect( LDAP *ld, Sockbuf *sb, const char *host )
+{
+ LDAPConn conn = { .lconn_sb = sb };
+ return ldap_int_tls_connect( ld, &conn, host );
+}
+
+/*
+ * Call this to do a TLS accept on a sockbuf.
+ * Everything else is the same as with tls_connect.
+ */
+int
+ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg )
+{
+ int err;
+ tls_session *ssl = NULL;
+
+ if ( HAS_TLS( sb )) {
+ ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
+ } else {
+ ssl = alloc_handle( ctx_arg, 1 );
+ if ( ssl == NULL ) return -1;
+
+#ifdef LDAP_DEBUG
+ ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
+ LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
+#endif
+ ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
+ LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
+ }
+
+ err = tls_imp->ti_session_accept( ssl );
+
+#ifdef HAVE_WINSOCK
+ errno = WSAGetLastError();
+#endif
+
+ if ( err < 0 )
+ {
+ if ( update_flags( sb, ssl, err )) return 1;
+
+ if ( DebugTest( LDAP_DEBUG_ANY ) ) {
+ char buf[256], *msg;
+ msg = tls_imp->ti_session_errmsg( ssl, err, buf, sizeof(buf) );
+ Debug1( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n",
+ msg ? msg : "(unknown)" );
+ }
+
+ ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
+ LBER_SBIOD_LEVEL_TRANSPORT );
+#ifdef LDAP_DEBUG
+ ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
+ LBER_SBIOD_LEVEL_TRANSPORT );
+#endif
+ return -1;
+ }
+ return 0;
+}
+
+int
+ldap_pvt_tls_inplace ( Sockbuf *sb )
+{
+ return HAS_TLS( sb ) ? 1 : 0;
+}
+
+int
+ldap_tls_inplace( LDAP *ld )
+{
+ Sockbuf *sb = NULL;
+
+ if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) {
+ sb = ld->ld_defconn->lconn_sb;
+
+ } else if ( ld->ld_sb ) {
+ sb = ld->ld_sb;
+
+ } else {
+ return 0;
+ }
+
+ return ldap_pvt_tls_inplace( sb );
+}
+
+int
+ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn,
+ LDAPDN_rewrite_dummy *func, unsigned flags )
+{
+ tls_session *session = s;
+ struct berval bvdn;
+ int rc;
+
+ rc = tls_imp->ti_session_peer_dn( session, &bvdn );
+ if ( rc ) return rc;
+
+ rc = ldap_X509dn2bv( &bvdn, dn,
+ (LDAPDN_rewrite_func *)func, flags);
+ return rc;
+}
+
+int
+ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
+{
+ tls_session *session = s;
+
+ if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER &&
+ ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW) {
+ ld->ld_errno = tls_imp->ti_session_chkhost( ld, session, name_in );
+ if (ld->ld_errno != LDAP_SUCCESS) {
+ return ld->ld_errno;
+ }
+ }
+
+ /*
+ * If instructed to do pinning, do it now
+ */
+ if ( !BER_BVISNULL( &ld->ld_options.ldo_tls_pin ) ) {
+ ld->ld_errno = tls_imp->ti_session_pinning( ld, s,
+ ld->ld_options.ldo_tls_pin_hashalg,
+ &ld->ld_options.ldo_tls_pin );
+ if (ld->ld_errno != LDAP_SUCCESS) {
+ return ld->ld_errno;
+ }
+ }
+
+ return LDAP_SUCCESS;
+}
+
+int
+ldap_pvt_tls_config( LDAP *ld, int option, const char *arg )
+{
+ int i;
+
+ switch( option ) {
+ case LDAP_OPT_X_TLS_CACERTFILE:
+ case LDAP_OPT_X_TLS_CACERTDIR:
+ case LDAP_OPT_X_TLS_CERTFILE:
+ case LDAP_OPT_X_TLS_KEYFILE:
+ case LDAP_OPT_X_TLS_RANDOM_FILE:
+ case LDAP_OPT_X_TLS_CIPHER_SUITE:
+ case LDAP_OPT_X_TLS_DHFILE:
+ case LDAP_OPT_X_TLS_PEERKEY_HASH:
+ case LDAP_OPT_X_TLS_ECNAME:
+ case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
+ return ldap_pvt_tls_set_option( ld, option, (void *) arg );
+
+ case LDAP_OPT_X_TLS_REQUIRE_CERT:
+ case LDAP_OPT_X_TLS_REQUIRE_SAN:
+ case LDAP_OPT_X_TLS:
+ i = -1;
+ if ( strcasecmp( arg, "never" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_NEVER ;
+
+ } else if ( strcasecmp( arg, "demand" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_DEMAND ;
+
+ } else if ( strcasecmp( arg, "allow" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_ALLOW ;
+
+ } else if ( strcasecmp( arg, "try" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_TRY ;
+
+ } else if ( ( strcasecmp( arg, "hard" ) == 0 ) ||
+ ( strcasecmp( arg, "on" ) == 0 ) ||
+ ( strcasecmp( arg, "yes" ) == 0) ||
+ ( strcasecmp( arg, "true" ) == 0 ) )
+ {
+ i = LDAP_OPT_X_TLS_HARD ;
+ }
+
+ if (i >= 0) {
+ return ldap_pvt_tls_set_option( ld, option, &i );
+ }
+ return -1;
+ case LDAP_OPT_X_TLS_PROTOCOL_MAX:
+ case LDAP_OPT_X_TLS_PROTOCOL_MIN: {
+ char *next;
+ long l;
+ l = strtol( arg, &next, 10 );
+ if ( l < 0 || l > 0xff || next == arg ||
+ ( *next != '\0' && *next != '.' ) )
+ return -1;
+ i = l << 8;
+ if (*next == '.') {
+ arg = next + 1;
+ l = strtol( arg, &next, 10 );
+ if ( l < 0 || l > 0xff || next == arg || *next != '\0' )
+ return -1;
+ i += l;
+ }
+ return ldap_pvt_tls_set_option( ld, option, &i );
+ }
+#ifdef HAVE_OPENSSL
+ case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
+ i = -1;
+ if ( strcasecmp( arg, "none" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_CRL_NONE ;
+ } else if ( strcasecmp( arg, "peer" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_CRL_PEER ;
+ } else if ( strcasecmp( arg, "all" ) == 0 ) {
+ i = LDAP_OPT_X_TLS_CRL_ALL ;
+ }
+ if (i >= 0) {
+ return ldap_pvt_tls_set_option( ld, option, &i );
+ }
+ return -1;
+#endif
+ }
+ return -1;
+}
+
+int
+ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
+{
+ struct ldapoptions *lo;
+
+ if( option == LDAP_OPT_X_TLS_PACKAGE ) {
+ *(char **)arg = LDAP_STRDUP( tls_imp->ti_name );
+ return 0;
+ }
+
+ if( ld != NULL ) {
+ assert( LDAP_VALID( ld ) );
+
+ if( !LDAP_VALID( ld ) ) {
+ return LDAP_OPT_ERROR;
+ }
+
+ lo = &ld->ld_options;
+
+ } else {
+ /* Get pointer to global option structure */
+ lo = LDAP_INT_GLOBAL_OPT();
+ if ( lo == NULL ) {
+ return LDAP_NO_MEMORY;
+ }
+ }
+
+ switch( option ) {
+ case LDAP_OPT_X_TLS:
+ *(int *)arg = lo->ldo_tls_mode;
+ break;
+ case LDAP_OPT_X_TLS_CTX:
+ *(void **)arg = lo->ldo_tls_ctx;
+ if ( lo->ldo_tls_ctx ) {
+ tls_ctx_ref( lo->ldo_tls_ctx );
+ }
+ break;
+ case LDAP_OPT_X_TLS_CACERTFILE:
+ *(char **)arg = lo->ldo_tls_cacertfile ?
+ LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_CACERTDIR:
+ *(char **)arg = lo->ldo_tls_cacertdir ?
+ LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_CERTFILE:
+ *(char **)arg = lo->ldo_tls_certfile ?
+ LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_KEYFILE:
+ *(char **)arg = lo->ldo_tls_keyfile ?
+ LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_DHFILE:
+ *(char **)arg = lo->ldo_tls_dhfile ?
+ LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_ECNAME:
+ *(char **)arg = lo->ldo_tls_ecname ?
+ LDAP_STRDUP( lo->ldo_tls_ecname ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
+ *(char **)arg = lo->ldo_tls_crlfile ?
+ LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_REQUIRE_CERT:
+ *(int *)arg = lo->ldo_tls_require_cert;
+ break;
+ case LDAP_OPT_X_TLS_REQUIRE_SAN:
+ *(int *)arg = lo->ldo_tls_require_san;
+ break;
+#ifdef HAVE_OPENSSL
+ case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
+ *(int *)arg = lo->ldo_tls_crlcheck;
+ break;
+#endif
+ case LDAP_OPT_X_TLS_CIPHER_SUITE:
+ *(char **)arg = lo->ldo_tls_ciphersuite ?
+ LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_PROTOCOL_MIN:
+ *(int *)arg = lo->ldo_tls_protocol_min;
+ break;
+ case LDAP_OPT_X_TLS_PROTOCOL_MAX:
+ *(int *)arg = lo->ldo_tls_protocol_max;
+ break;
+ case LDAP_OPT_X_TLS_RANDOM_FILE:
+ *(char **)arg = lo->ldo_tls_randfile ?
+ LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_SSL_CTX: {
+ void *retval = 0;
+ if ( ld != NULL ) {
+ LDAPConn *conn = ld->ld_defconn;
+ if ( conn != NULL ) {
+ Sockbuf *sb = conn->lconn_sb;
+ retval = ldap_pvt_tls_sb_ctx( sb );
+ }
+ }
+ *(void **)arg = retval;
+ break;
+ }
+ case LDAP_OPT_X_TLS_CONNECT_CB:
+ *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
+ break;
+ case LDAP_OPT_X_TLS_CONNECT_ARG:
+ *(void **)arg = lo->ldo_tls_connect_arg;
+ break;
+ case LDAP_OPT_X_TLS_VERSION: {
+ void *sess = NULL;
+ const char *retval = NULL;
+ if ( ld != NULL ) {
+ LDAPConn *conn = ld->ld_defconn;
+ if ( conn != NULL ) {
+ Sockbuf *sb = conn->lconn_sb;
+ sess = ldap_pvt_tls_sb_ctx( sb );
+ if ( sess != NULL )
+ retval = ldap_pvt_tls_get_version( sess );
+ }
+ }
+ *(char **)arg = retval ? LDAP_STRDUP( retval ) : NULL;
+ break;
+ }
+ case LDAP_OPT_X_TLS_CIPHER: {
+ void *sess = NULL;
+ const char *retval = NULL;
+ if ( ld != NULL ) {
+ LDAPConn *conn = ld->ld_defconn;
+ if ( conn != NULL ) {
+ Sockbuf *sb = conn->lconn_sb;
+ sess = ldap_pvt_tls_sb_ctx( sb );
+ if ( sess != NULL )
+ retval = ldap_pvt_tls_get_cipher( sess );
+ }
+ }
+ *(char **)arg = retval ? LDAP_STRDUP( retval ) : NULL;
+ break;
+ }
+ case LDAP_OPT_X_TLS_PEERCERT: {
+ void *sess = NULL;
+ struct berval *bv = arg;
+ bv->bv_len = 0;
+ bv->bv_val = NULL;
+ if ( ld != NULL ) {
+ LDAPConn *conn = ld->ld_defconn;
+ if ( conn != NULL ) {
+ Sockbuf *sb = conn->lconn_sb;
+ sess = ldap_pvt_tls_sb_ctx( sb );
+ if ( sess != NULL )
+ return ldap_pvt_tls_get_peercert( sess, bv );
+ }
+ }
+ break;
+ }
+ case LDAP_OPT_X_TLS_CACERT: {
+ struct berval *bv = arg;
+ if ( lo->ldo_tls_cacert.bv_val ) {
+ ber_dupbv( bv, &lo->ldo_tls_cacert );
+ } else {
+ BER_BVZERO( bv );
+ }
+ break;
+ }
+ case LDAP_OPT_X_TLS_CERT: {
+ struct berval *bv = arg;
+ if ( lo->ldo_tls_cert.bv_val ) {
+ ber_dupbv( bv, &lo->ldo_tls_cert );
+ } else {
+ BER_BVZERO( bv );
+ }
+ break;
+ }
+ case LDAP_OPT_X_TLS_KEY: {
+ struct berval *bv = arg;
+ if ( lo->ldo_tls_key.bv_val ) {
+ ber_dupbv( bv, &lo->ldo_tls_key );
+ } else {
+ BER_BVZERO( bv );
+ }
+ break;
+ }
+
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+int
+ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
+{
+ struct ldapoptions *lo;
+
+ if( ld != NULL ) {
+ assert( LDAP_VALID( ld ) );
+
+ if( !LDAP_VALID( ld ) ) {
+ return LDAP_OPT_ERROR;
+ }
+
+ lo = &ld->ld_options;
+
+ } else {
+ /* Get pointer to global option structure */
+ lo = LDAP_INT_GLOBAL_OPT();
+ if ( lo == NULL ) {
+ return LDAP_NO_MEMORY;
+ }
+ }
+
+ switch( option ) {
+ case LDAP_OPT_X_TLS:
+ if ( !arg ) return -1;
+
+ switch( *(int *) arg ) {
+ case LDAP_OPT_X_TLS_NEVER:
+ case LDAP_OPT_X_TLS_DEMAND:
+ case LDAP_OPT_X_TLS_ALLOW:
+ case LDAP_OPT_X_TLS_TRY:
+ case LDAP_OPT_X_TLS_HARD:
+ if (lo != NULL) {
+ lo->ldo_tls_mode = *(int *)arg;
+ }
+
+ return 0;
+ }
+ return -1;
+
+ case LDAP_OPT_X_TLS_CTX:
+ if ( lo->ldo_tls_ctx )
+ ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
+ lo->ldo_tls_ctx = arg;
+ tls_ctx_ref( lo->ldo_tls_ctx );
+ return 0;
+ case LDAP_OPT_X_TLS_CONNECT_CB:
+ lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
+ return 0;
+ case LDAP_OPT_X_TLS_CONNECT_ARG:
+ lo->ldo_tls_connect_arg = arg;
+ return 0;
+ case LDAP_OPT_X_TLS_CACERTFILE:
+ if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
+ lo->ldo_tls_cacertfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_CACERTDIR:
+ if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
+ lo->ldo_tls_cacertdir = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_CERTFILE:
+ if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
+ lo->ldo_tls_certfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_KEYFILE:
+ if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
+ lo->ldo_tls_keyfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_DHFILE:
+ if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
+ lo->ldo_tls_dhfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_ECNAME:
+ if ( lo->ldo_tls_ecname ) LDAP_FREE( lo->ldo_tls_ecname );
+ lo->ldo_tls_ecname = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
+ if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
+ lo->ldo_tls_crlfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+ case LDAP_OPT_X_TLS_REQUIRE_CERT:
+ if ( !arg ) return -1;
+ switch( *(int *) arg ) {
+ case LDAP_OPT_X_TLS_NEVER:
+ case LDAP_OPT_X_TLS_DEMAND:
+ case LDAP_OPT_X_TLS_ALLOW:
+ case LDAP_OPT_X_TLS_TRY:
+ case LDAP_OPT_X_TLS_HARD:
+ lo->ldo_tls_require_cert = * (int *) arg;
+ return 0;
+ }
+ return -1;
+ case LDAP_OPT_X_TLS_REQUIRE_SAN:
+ if ( !arg ) return -1;
+ switch( *(int *) arg ) {
+ case LDAP_OPT_X_TLS_NEVER:
+ case LDAP_OPT_X_TLS_DEMAND:
+ case LDAP_OPT_X_TLS_ALLOW:
+ case LDAP_OPT_X_TLS_TRY:
+ case LDAP_OPT_X_TLS_HARD:
+ lo->ldo_tls_require_san = * (int *) arg;
+ return 0;
+ }
+ return -1;
+#ifdef HAVE_OPENSSL
+ case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
+ if ( !arg ) return -1;
+ switch( *(int *) arg ) {
+ case LDAP_OPT_X_TLS_CRL_NONE:
+ case LDAP_OPT_X_TLS_CRL_PEER:
+ case LDAP_OPT_X_TLS_CRL_ALL:
+ lo->ldo_tls_crlcheck = * (int *) arg;
+ return 0;
+ }
+ return -1;
+#endif
+ case LDAP_OPT_X_TLS_CIPHER_SUITE:
+ if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
+ lo->ldo_tls_ciphersuite = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ return 0;
+
+ case LDAP_OPT_X_TLS_PROTOCOL_MIN:
+ if ( !arg ) return -1;
+ lo->ldo_tls_protocol_min = *(int *)arg;
+ return 0;
+ case LDAP_OPT_X_TLS_PROTOCOL_MAX:
+ if ( !arg ) return -1;
+ lo->ldo_tls_protocol_max = *(int *)arg;
+ return 0;
+ case LDAP_OPT_X_TLS_RANDOM_FILE:
+ if ( ld != NULL )
+ return -1;
+ if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile );
+ lo->ldo_tls_randfile = (arg && *(char *)arg) ? LDAP_STRDUP( (char *) arg ) : NULL;
+ break;
+ case LDAP_OPT_X_TLS_NEWCTX:
+ if ( !arg ) return -1;
+ if ( lo->ldo_tls_ctx )
+ ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
+ lo->ldo_tls_ctx = NULL;
+ return ldap_int_tls_init_ctx( lo, *(int *)arg );
+ case LDAP_OPT_X_TLS_CACERT:
+ if ( lo->ldo_tls_cacert.bv_val )
+ LDAP_FREE( lo->ldo_tls_cacert.bv_val );
+ if ( arg ) {
+ lo->ldo_tls_cacert.bv_len = ((struct berval *)arg)->bv_len;
+ lo->ldo_tls_cacert.bv_val = LDAP_MALLOC( lo->ldo_tls_cacert.bv_len );
+ if ( !lo->ldo_tls_cacert.bv_val )
+ return -1;
+ AC_MEMCPY( lo->ldo_tls_cacert.bv_val, ((struct berval *)arg)->bv_val, lo->ldo_tls_cacert.bv_len );
+ } else {
+ BER_BVZERO( &lo->ldo_tls_cacert );
+ }
+ break;
+ case LDAP_OPT_X_TLS_CERT:
+ if ( lo->ldo_tls_cert.bv_val )
+ LDAP_FREE( lo->ldo_tls_cert.bv_val );
+ if ( arg ) {
+ lo->ldo_tls_cert.bv_len = ((struct berval *)arg)->bv_len;
+ lo->ldo_tls_cert.bv_val = LDAP_MALLOC( lo->ldo_tls_cert.bv_len );
+ if ( !lo->ldo_tls_cert.bv_val )
+ return -1;
+ AC_MEMCPY( lo->ldo_tls_cert.bv_val, ((struct berval *)arg)->bv_val, lo->ldo_tls_cert.bv_len );
+ } else {
+ BER_BVZERO( &lo->ldo_tls_cert );
+ }
+ break;
+ case LDAP_OPT_X_TLS_KEY:
+ if ( lo->ldo_tls_key.bv_val )
+ LDAP_FREE( lo->ldo_tls_key.bv_val );
+ if ( arg ) {
+ lo->ldo_tls_key.bv_len = ((struct berval *)arg)->bv_len;
+ lo->ldo_tls_key.bv_val = LDAP_MALLOC( lo->ldo_tls_key.bv_len );
+ if ( !lo->ldo_tls_key.bv_val )
+ return -1;
+ AC_MEMCPY( lo->ldo_tls_key.bv_val, ((struct berval *)arg)->bv_val, lo->ldo_tls_key.bv_len );
+ } else {
+ BER_BVZERO( &lo->ldo_tls_key );
+ }
+ break;
+ case LDAP_OPT_X_TLS_PEERKEY_HASH: {
+ /* arg = "[hashalg:]pubkey_hash" */
+ struct berval bv;
+ char *p, *pin = arg;
+ int rc = LDAP_SUCCESS;
+
+ if ( !tls_imp->ti_session_pinning ) return -1;
+
+ if ( !pin || !*pin ) {
+ if ( lo->ldo_tls_pin_hashalg ) {
+ LDAP_FREE( lo->ldo_tls_pin_hashalg );
+ } else if ( lo->ldo_tls_pin.bv_val ) {
+ LDAP_FREE( lo->ldo_tls_pin.bv_val );
+ }
+ lo->ldo_tls_pin_hashalg = NULL;
+ BER_BVZERO( &lo->ldo_tls_pin );
+ return rc;
+ }
+
+ pin = LDAP_STRDUP( pin );
+ p = strchr( pin, ':' );
+
+ /* pubkey (its hash) goes in bv, alg in p */
+ if ( p ) {
+ *p = '\0';
+ bv.bv_val = p+1;
+ p = pin;
+ } else {
+ bv.bv_val = pin;
+ }
+
+ bv.bv_len = strlen(bv.bv_val);
+ if ( ldap_int_decode_b64_inplace( &bv ) ) {
+ LDAP_FREE( pin );
+ return -1;
+ }
+
+ if ( ld != NULL ) {
+ LDAPConn *conn = ld->ld_defconn;
+ if ( conn != NULL ) {
+ Sockbuf *sb = conn->lconn_sb;
+ void *sess = ldap_pvt_tls_sb_ctx( sb );
+ if ( sess != NULL ) {
+ rc = tls_imp->ti_session_pinning( ld, sess, p, &bv );
+ }
+ }
+ }
+
+ if ( rc == LDAP_SUCCESS ) {
+ if ( lo->ldo_tls_pin_hashalg ) {
+ LDAP_FREE( lo->ldo_tls_pin_hashalg );
+ } else if ( lo->ldo_tls_pin.bv_val ) {
+ LDAP_FREE( lo->ldo_tls_pin.bv_val );
+ }
+ lo->ldo_tls_pin_hashalg = p;
+ lo->ldo_tls_pin = bv;
+ } else {
+ LDAP_FREE( pin );
+ }
+
+ return rc;
+ }
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+int
+ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
+{
+ Sockbuf *sb;
+ char *host;
+ void *ssl;
+ int ret, async;
+ struct timeval start_time_tv, tv, tv0;
+ ber_socket_t sd = AC_SOCKET_ERROR;
+
+ if ( !conn )
+ return LDAP_PARAM_ERROR;
+
+ sb = conn->lconn_sb;
+ if( srv ) {
+ host = srv->lud_host;
+ } else {
+ host = conn->lconn_server->lud_host;
+ }
+
+ /* avoid NULL host */
+ if( host == NULL ) {
+ host = "localhost";
+ }
+
+ (void) tls_init( tls_imp, 0 );
+
+ /*
+ * Use non-blocking io during SSL Handshake when a timeout is configured
+ */
+ async = LDAP_BOOL_GET( &ld->ld_options, LDAP_BOOL_CONNECT_ASYNC );
+ if ( ld->ld_options.ldo_tm_net.tv_sec >= 0 ) {
+ if ( !async ) {
+ /* if async, this has already been set */
+ ber_sockbuf_ctrl( sb, LBER_SB_OPT_SET_NONBLOCK, (void*)1 );
+ }
+ ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd );
+ tv = ld->ld_options.ldo_tm_net;
+ tv0 = tv;
+#ifdef HAVE_GETTIMEOFDAY
+ gettimeofday( &start_time_tv, NULL );
+#else /* ! HAVE_GETTIMEOFDAY */
+ time( &start_time_tv.tv_sec );
+ start_time_tv.tv_usec = 0;
+#endif /* ! HAVE_GETTIMEOFDAY */
+ }
+
+ ld->ld_errno = LDAP_SUCCESS;
+ ret = ldap_int_tls_connect( ld, conn, host );
+
+ /* this mainly only happens for non-blocking io
+ * but can also happen when the handshake is too
+ * big for a single network message.
+ */
+ while ( ret > 0 ) {
+ if ( async ) {
+ struct timeval curr_time_tv, delta_tv;
+ int wr=0;
+
+ if ( sb->sb_trans_needs_read ) {
+ wr=0;
+ } else if ( sb->sb_trans_needs_write ) {
+ wr=1;
+ }
+ Debug1( LDAP_DEBUG_TRACE, "ldap_int_tls_start: ldap_int_tls_connect needs %s\n",
+ wr ? "write": "read" );
+
+ /* This is mostly copied from result.c:wait4msg(), should
+ * probably be moved into a separate function */
+#ifdef HAVE_GETTIMEOFDAY
+ gettimeofday( &curr_time_tv, NULL );
+#else /* ! HAVE_GETTIMEOFDAY */
+ time( &curr_time_tv.tv_sec );
+ curr_time_tv.tv_usec = 0;
+#endif /* ! HAVE_GETTIMEOFDAY */
+
+ /* delta = curr - start */
+ delta_tv.tv_sec = curr_time_tv.tv_sec - start_time_tv.tv_sec;
+ delta_tv.tv_usec = curr_time_tv.tv_usec - start_time_tv.tv_usec;
+ if ( delta_tv.tv_usec < 0 ) {
+ delta_tv.tv_sec--;
+ delta_tv.tv_usec += 1000000;
+ }
+
+ /* tv0 < delta ? */
+ if ( ( tv0.tv_sec < delta_tv.tv_sec ) ||
+ ( ( tv0.tv_sec == delta_tv.tv_sec ) &&
+ ( tv0.tv_usec < delta_tv.tv_usec ) ) )
+ {
+ ret = -1;
+ ld->ld_errno = LDAP_TIMEOUT;
+ break;
+ }
+ /* timeout -= delta_time */
+ tv0.tv_sec -= delta_tv.tv_sec;
+ tv0.tv_usec -= delta_tv.tv_usec;
+ if ( tv0.tv_usec < 0 ) {
+ tv0.tv_sec--;
+ tv0.tv_usec += 1000000;
+ }
+ start_time_tv.tv_sec = curr_time_tv.tv_sec;
+ start_time_tv.tv_usec = curr_time_tv.tv_usec;
+ tv = tv0;
+ Debug3( LDAP_DEBUG_TRACE, "ldap_int_tls_start: ld %p %ld s %ld us to go\n",
+ (void *)ld, (long) tv.tv_sec, (long) tv.tv_usec );
+ ret = ldap_int_poll( ld, sd, &tv, wr);
+ if ( ret < 0 ) {
+ ld->ld_errno = LDAP_TIMEOUT;
+ break;
+ }
+ }
+ ret = ldap_int_tls_connect( ld, conn, host );
+ }
+
+ if ( ret < 0 ) {
+ if ( ld->ld_errno == LDAP_SUCCESS )
+ ld->ld_errno = LDAP_CONNECT_ERROR;
+ return (ld->ld_errno);
+ }
+
+ return LDAP_SUCCESS;
+}
+
+void *
+ldap_pvt_tls_sb_ctx( Sockbuf *sb )
+{
+ void *p = NULL;
+
+ ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
+ return p;
+}
+
+int
+ldap_pvt_tls_get_strength( void *s )
+{
+ tls_session *session = s;
+
+ return tls_imp->ti_session_strength( session );
+}
+
+int
+ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
+{
+ tls_session *session = s;
+ struct berval der_dn;
+ int rc;
+
+ rc = tls_imp->ti_session_my_dn( session, &der_dn );
+ if ( rc == LDAP_SUCCESS )
+ rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
+ return rc;
+}
+
+int
+ldap_pvt_tls_get_unique( void *s, struct berval *buf, int is_server )
+{
+ tls_session *session = s;
+ return tls_imp->ti_session_unique( session, buf, is_server );
+}
+
+int
+ldap_pvt_tls_get_endpoint( void *s, struct berval *buf, int is_server )
+{
+ tls_session *session = s;
+ return tls_imp->ti_session_endpoint( session, buf, is_server );
+}
+
+const char *
+ldap_pvt_tls_get_version( void *s )
+{
+ tls_session *session = s;
+ return tls_imp->ti_session_version( session );
+}
+
+const char *
+ldap_pvt_tls_get_cipher( void *s )
+{
+ tls_session *session = s;
+ return tls_imp->ti_session_cipher( session );
+}
+
+int
+ldap_pvt_tls_get_peercert( void *s, struct berval *der )
+{
+ tls_session *session = s;
+ return tls_imp->ti_session_peercert( session, der );
+}
+#endif /* HAVE_TLS */
+
+int
+ldap_start_tls( LDAP *ld,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls,
+ int *msgidp )
+{
+ return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
+ NULL, serverctrls, clientctrls, msgidp );
+}
+
+int
+ldap_install_tls( LDAP *ld )
+{
+#ifndef HAVE_TLS
+ return LDAP_NOT_SUPPORTED;
+#else
+ if ( ldap_tls_inplace( ld ) ) {
+ return LDAP_LOCAL_ERROR;
+ }
+
+ return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
+#endif
+}
+
+int
+ldap_start_tls_s ( LDAP *ld,
+ LDAPControl **serverctrls,
+ LDAPControl **clientctrls )
+{
+#ifndef HAVE_TLS
+ return LDAP_NOT_SUPPORTED;
+#else
+ int rc;
+ char *rspoid = NULL;
+ struct berval *rspdata = NULL;
+
+ /* XXYYZ: this initiates operation only on default connection! */
+
+ if ( ldap_tls_inplace( ld ) ) {
+ return LDAP_LOCAL_ERROR;
+ }
+
+ rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
+ NULL, serverctrls, clientctrls, &rspoid, &rspdata );
+
+ if ( rspoid != NULL ) {
+ LDAP_FREE(rspoid);
+ }
+
+ if ( rspdata != NULL ) {
+ ber_bvfree( rspdata );
+ }
+
+ if ( rc == LDAP_SUCCESS ) {
+ rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
+ }
+
+ return rc;
+#endif
+}
+
+/* These tags probably all belong in lber.h, but they're
+ * not normally encountered when processing LDAP, so maybe
+ * they belong somewhere else instead.
+ */
+
+#define LBER_TAG_OID ((ber_tag_t) 0x06UL)
+
+/* Tags for string types used in a DirectoryString.
+ *
+ * Note that IA5string is not one of the defined choices for
+ * DirectoryString in X.520, but it gets used for email AVAs.
+ */
+#define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
+#define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
+#define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
+#define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
+#define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
+#define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
+
+static oid_name *
+find_oid( struct berval *oid )
+{
+ int i;
+
+ for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
+ if ( oids[i].oid.bv_len != oid->bv_len ) continue;
+ if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
+ return &oids[i];
+ }
+ return NULL;
+}
+
+/* Converts BER Bitstring value to LDAP BitString value (RFC4517)
+ *
+ * berValue : IN
+ * rfc4517Value: OUT
+ *
+ * berValue and ldapValue should not be NULL
+ */
+
+#define BITS_PER_BYTE 8
+#define SQUOTE_LENGTH 1
+#define B_CHAR_LENGTH 1
+#define STR_OVERHEAD (2*SQUOTE_LENGTH + B_CHAR_LENGTH)
+
+static int
+der_to_ldap_BitString (struct berval *berValue,
+ struct berval *ldapValue)
+{
+ ber_len_t bitPadding=0;
+ ber_len_t bits, maxBits;
+ char *tmpStr;
+ unsigned char byte;
+ ber_len_t bitLength;
+ ber_len_t valLen;
+ unsigned char* valPtr;
+
+ ldapValue->bv_len=0;
+ ldapValue->bv_val=NULL;
+
+ /* Gets padding and points to binary data */
+ valLen=berValue->bv_len;
+ valPtr=(unsigned char*)berValue->bv_val;
+ if (valLen) {
+ bitPadding=(ber_len_t)(valPtr[0]);
+ valLen--;
+ valPtr++;
+ }
+ /* If Block is non DER encoding fixes to DER encoding */
+ if (bitPadding >= BITS_PER_BYTE) {
+ if (valLen*BITS_PER_BYTE > bitPadding ) {
+ valLen-=(bitPadding/BITS_PER_BYTE);
+ bitPadding%=BITS_PER_BYTE;
+ } else {
+ valLen=0;
+ bitPadding=0;
+ }
+ }
+ /* Just in case bad encoding */
+ if (valLen*BITS_PER_BYTE < bitPadding ) {
+ bitPadding=0;
+ valLen=0;
+ }
+
+ /* Gets buffer to hold RFC4517 Bit String format */
+ bitLength=valLen*BITS_PER_BYTE-bitPadding;
+ tmpStr=LDAP_MALLOC(bitLength + STR_OVERHEAD + 1);
+
+ if (!tmpStr)
+ return LDAP_NO_MEMORY;
+
+ ldapValue->bv_val=tmpStr;
+ ldapValue->bv_len=bitLength + STR_OVERHEAD;
+
+ /* Formatting in '*binary-digit'B format */
+ maxBits=BITS_PER_BYTE;
+ *tmpStr++ ='\'';
+ while(valLen) {
+ byte=*valPtr;
+ if (valLen==1)
+ maxBits-=bitPadding;
+ for (bits=0; bits<maxBits; bits++) {
+ if (0x80 & byte)
+ *tmpStr='1';
+ else
+ *tmpStr='0';
+ tmpStr++;
+ byte<<=1;
+ }
+ valPtr++;
+ valLen--;
+ }
+ *tmpStr++ ='\'';
+ *tmpStr++ ='B';
+ *tmpStr=0;
+
+ return LDAP_SUCCESS;
+}
+
+/* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
+ * x509_name must be raw DER. If func is non-NULL, the
+ * constructed DN will use numeric OIDs to identify attributeTypes,
+ * and the func() will be invoked to rewrite the DN with the given
+ * flags.
+ *
+ * Otherwise the DN will use shortNames from a hardcoded table.
+ */
+int
+ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
+ unsigned flags )
+{
+ LDAPDN newDN;
+ LDAPRDN newRDN;
+ LDAPAVA *newAVA, *baseAVA;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
+ char oids[8192], *oidptr = oids, *oidbuf = NULL;
+ void *ptrs[2048];
+ char *dn_end, *rdn_end;
+ int i, navas, nrdns, rc = LDAP_SUCCESS;
+ size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
+ int csize;
+ ber_tag_t tag;
+ ber_len_t len;
+ oid_name *oidname;
+
+ struct berval Oid, Val, oid2, *in = x509_name;
+
+ assert( bv != NULL );
+
+ bv->bv_len = 0;
+ bv->bv_val = NULL;
+
+ navas = 0;
+ nrdns = 0;
+
+ /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
+ * An AVA is a SEQUENCE of attr and value.
+ * Count the number of AVAs and RDNs
+ */
+ ber_init2( ber, in, LBER_USE_DER );
+ tag = ber_peek_tag( ber, &len );
+ if ( tag != LBER_SEQUENCE )
+ return LDAP_DECODING_ERROR;
+
+ for ( tag = ber_first_element( ber, &len, &dn_end );
+ tag == LBER_SET;
+ tag = ber_next_element( ber, &len, dn_end )) {
+ nrdns++;
+ for ( tag = ber_first_element( ber, &len, &rdn_end );
+ tag == LBER_SEQUENCE;
+ tag = ber_next_element( ber, &len, rdn_end )) {
+ if ( rdn_end > dn_end )
+ return LDAP_DECODING_ERROR;
+ tag = ber_skip_tag( ber, &len );
+ ber_skip_data( ber, len );
+ navas++;
+ }
+ }
+
+ /* Rewind and prepare to extract */
+ ber_rewind( ber );
+ tag = ber_first_element( ber, &len, &dn_end );
+ if ( tag != LBER_SET )
+ return LDAP_DECODING_ERROR;
+
+ /* Allocate the DN/RDN/AVA stuff as a single block */
+ dnsize = sizeof(LDAPRDN) * (nrdns+1);
+ dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
+ dnsize += sizeof(LDAPAVA) * navas;
+ if (dnsize > sizeof(ptrs)) {
+ newDN = (LDAPDN)LDAP_MALLOC( dnsize );
+ if ( newDN == NULL )
+ return LDAP_NO_MEMORY;
+ } else {
+ newDN = (LDAPDN)(char *)ptrs;
+ }
+
+ newDN[nrdns] = NULL;
+ newRDN = (LDAPRDN)(newDN + nrdns+1);
+ newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
+ baseAVA = newAVA;
+
+ for ( i = nrdns - 1; i >= 0; i-- ) {
+ newDN[i] = newRDN;
+
+ for ( tag = ber_first_element( ber, &len, &rdn_end );
+ tag == LBER_SEQUENCE;
+ tag = ber_next_element( ber, &len, rdn_end )) {
+
+ *newRDN++ = newAVA;
+ tag = ber_skip_tag( ber, &len );
+ tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
+ if ( tag != LBER_TAG_OID ) {
+ rc = LDAP_DECODING_ERROR;
+ goto nomem;
+ }
+
+ oid2.bv_val = oidptr;
+ oid2.bv_len = oidrem;
+ if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
+ rc = LDAP_DECODING_ERROR;
+ goto nomem;
+ }
+ oidname = find_oid( &oid2 );
+ if ( !oidname ) {
+ newAVA->la_attr = oid2;
+ oidptr += oid2.bv_len + 1;
+ oidrem -= oid2.bv_len + 1;
+
+ /* Running out of OID buffer space? */
+ if (oidrem < 128) {
+ if ( oidsize == 0 ) {
+ oidsize = sizeof(oids) * 2;
+ oidrem = oidsize;
+ oidbuf = LDAP_MALLOC( oidsize );
+ if ( oidbuf == NULL ) goto nomem;
+ oidptr = oidbuf;
+ } else {
+ char *old = oidbuf;
+ oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
+ if ( oidbuf == NULL ) goto nomem;
+ /* Buffer moved! Fix AVA pointers */
+ if ( old != oidbuf ) {
+ LDAPAVA *a;
+ long dif = oidbuf - old;
+
+ for (a=baseAVA; a<=newAVA; a++){
+ if (a->la_attr.bv_val >= old &&
+ a->la_attr.bv_val <= (old + oidsize))
+ a->la_attr.bv_val += dif;
+ }
+ }
+ oidptr = oidbuf + oidsize - oidrem;
+ oidrem += oidsize;
+ oidsize *= 2;
+ }
+ }
+ } else {
+ if ( func ) {
+ newAVA->la_attr = oidname->oid;
+ } else {
+ newAVA->la_attr = oidname->name;
+ }
+ }
+ newAVA->la_private = NULL;
+ newAVA->la_flags = LDAP_AVA_STRING;
+ tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
+ switch(tag) {
+ case LBER_TAG_UNIVERSAL:
+ /* This uses 32-bit ISO 10646-1 */
+ csize = 4; goto to_utf8;
+ case LBER_TAG_BMP:
+ /* This uses 16-bit ISO 10646-1 */
+ csize = 2; goto to_utf8;
+ case LBER_TAG_TELETEX:
+ /* This uses 8-bit, assume ISO 8859-1 */
+ csize = 1;
+to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
+ newAVA->la_flags |= LDAP_AVA_NONPRINTABLE;
+allocd:
+ newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
+ if (rc != LDAP_SUCCESS) goto nomem;
+ break;
+ case LBER_TAG_UTF8:
+ newAVA->la_flags |= LDAP_AVA_NONPRINTABLE;
+ /* This is already in UTF-8 encoding */
+ case LBER_TAG_IA5:
+ case LBER_TAG_PRINTABLE:
+ /* These are always 7-bit strings */
+ newAVA->la_value = Val;
+ break;
+ case LBER_BITSTRING:
+ /* X.690 bitString value converted to RFC4517 Bit String */
+ rc = der_to_ldap_BitString( &Val, &newAVA->la_value );
+ goto allocd;
+ case LBER_DEFAULT:
+ /* decode error */
+ rc = LDAP_DECODING_ERROR;
+ goto nomem;
+ default:
+ /* Not a string type at all */
+ newAVA->la_flags = 0;
+ newAVA->la_value = Val;
+ break;
+ }
+ newAVA++;
+ }
+ *newRDN++ = NULL;
+ tag = ber_next_element( ber, &len, dn_end );
+ }
+
+ if ( func ) {
+ rc = func( newDN, flags, NULL );
+ if ( rc != LDAP_SUCCESS )
+ goto nomem;
+ }
+
+ rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
+
+nomem:
+ for (;baseAVA < newAVA; baseAVA++) {
+ if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
+ LDAP_FREE( baseAVA->la_attr.bv_val );
+ if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
+ LDAP_FREE( baseAVA->la_value.bv_val );
+ }
+
+ if ( oidsize != 0 )
+ LDAP_FREE( oidbuf );
+ if ( newDN != (LDAPDN)(char *) ptrs )
+ LDAP_FREE( newDN );
+ return rc;
+}
+