/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2006 The OpenLDAP Foundation.
+ * Copyright 1998-2010 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
return -1;
}
-/*
- * SASL encryption support for LBER Sockbufs
- */
-
-struct sb_sasl_data {
- sasl_conn_t *sasl_context;
- unsigned *sasl_maxbuf;
- Sockbuf_Buf sec_buf_in;
- Sockbuf_Buf buf_in;
- Sockbuf_Buf buf_out;
-};
-
-static int
-sb_sasl_setup( Sockbuf_IO_Desc *sbiod, void *arg )
+static void
+sb_sasl_cyrus_init(
+ struct sb_sasl_generic_data *p,
+ ber_len_t *min_send,
+ ber_len_t *max_send,
+ ber_len_t *max_recv)
{
- struct sb_sasl_data *p;
-
- assert( sbiod != NULL );
-
- p = LBER_MALLOC( sizeof( *p ) );
- if ( p == NULL )
- return -1;
- p->sasl_context = (sasl_conn_t *)arg;
- ber_pvt_sb_buf_init( &p->sec_buf_in );
- ber_pvt_sb_buf_init( &p->buf_in );
- ber_pvt_sb_buf_init( &p->buf_out );
- if ( ber_pvt_sb_grow_buffer( &p->sec_buf_in, SASL_MIN_BUFF_SIZE ) < 0 ) {
- LBER_FREE( p );
- errno = ENOMEM;
- return -1;
- }
- sasl_getprop( p->sasl_context, SASL_MAXOUTBUF,
- (SASL_CONST void **) &p->sasl_maxbuf );
-
- sbiod->sbiod_pvt = p;
-
- return 0;
-}
+ sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
+ ber_len_t maxbuf;
-static int
-sb_sasl_remove( Sockbuf_IO_Desc *sbiod )
-{
- struct sb_sasl_data *p;
+ sasl_getprop( sasl_context, SASL_MAXOUTBUF,
+ (SASL_CONST void **)(char *) &maxbuf );
- assert( sbiod != NULL );
-
- p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
-#if SASL_VERSION_MAJOR >= 2
- /*
- * SASLv2 encode/decode buffers are managed by
- * libsasl2. Ensure they are not freed by liblber.
- */
- p->buf_in.buf_base = NULL;
- p->buf_out.buf_base = NULL;
-#endif
- ber_pvt_sb_buf_destroy( &p->sec_buf_in );
- ber_pvt_sb_buf_destroy( &p->buf_in );
- ber_pvt_sb_buf_destroy( &p->buf_out );
- LBER_FREE( p );
- sbiod->sbiod_pvt = NULL;
- return 0;
+ *min_send = SASL_MIN_BUFF_SIZE;
+ *max_send = maxbuf;
+ *max_recv = SASL_MAX_BUFF_SIZE;
}
-static ber_len_t
-sb_sasl_pkt_length( const unsigned char *buf, int debuglevel )
+static ber_int_t
+sb_sasl_cyrus_encode(
+ struct sb_sasl_generic_data *p,
+ unsigned char *buf,
+ ber_len_t len,
+ Sockbuf_Buf *dst)
{
- ber_len_t size;
+ sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
+ ber_int_t ret;
+ unsigned tmpsize = dst->buf_size;
- assert( buf != NULL );
+ ret = sasl_encode( sasl_context, (char *)buf, len,
+ (SASL_CONST char **)&dst->buf_base,
+ &tmpsize );
- size = buf[0] << 24
- | buf[1] << 16
- | buf[2] << 8
- | buf[3];
+ dst->buf_size = tmpsize;
+ dst->buf_end = dst->buf_size;
- if ( size > SASL_MAX_BUFF_SIZE ) {
- /* somebody is trying to mess me up. */
- ber_log_printf( LDAP_DEBUG_ANY, debuglevel,
- "sb_sasl_pkt_length: received illegal packet length "
- "of %lu bytes\n", (unsigned long)size );
- size = 16; /* this should lead to an error. */
+ if ( ret != SASL_OK ) {
+ ber_log_printf( LDAP_DEBUG_ANY, p->sbiod->sbiod_sb->sb_debug,
+ "sb_sasl_cyrus_encode: failed to encode packet: %s\n",
+ sasl_errstring( ret, NULL, NULL ) );
+ return -1;
}
- return size + 4; /* include the size !!! */
-}
-
-/* Drop a processed packet from the input buffer */
-static void
-sb_sasl_drop_packet ( Sockbuf_Buf *sec_buf_in, int debuglevel )
-{
- ber_slen_t len;
-
- len = sec_buf_in->buf_ptr - sec_buf_in->buf_end;
- if ( len > 0 )
- AC_MEMCPY( sec_buf_in->buf_base, sec_buf_in->buf_base +
- sec_buf_in->buf_end, len );
-
- if ( len >= 4 ) {
- sec_buf_in->buf_end = sb_sasl_pkt_length(
- (unsigned char *) sec_buf_in->buf_base, debuglevel);
- }
- else {
- sec_buf_in->buf_end = 0;
- }
- sec_buf_in->buf_ptr = len;
+ return 0;
}
-static ber_slen_t
-sb_sasl_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
+static ber_int_t
+sb_sasl_cyrus_decode(
+ struct sb_sasl_generic_data *p,
+ const Sockbuf_Buf *src,
+ Sockbuf_Buf *dst)
{
- struct sb_sasl_data *p;
- ber_slen_t ret, bufptr;
-
- assert( sbiod != NULL );
- assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
+ sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
+ ber_int_t ret;
+ unsigned tmpsize = dst->buf_size;
- p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
+ ret = sasl_decode( sasl_context,
+ src->buf_base, src->buf_end,
+ (SASL_CONST char **)&dst->buf_base,
+ (unsigned *)&tmpsize );
- /* Are there anything left in the buffer? */
- ret = ber_pvt_sb_copy_out( &p->buf_in, buf, len );
- bufptr = ret;
- len -= ret;
- if ( len == 0 )
- return bufptr;
-
-#if SASL_VERSION_MAJOR >= 2
- ber_pvt_sb_buf_init( &p->buf_in );
-#else
- ber_pvt_sb_buf_destroy( &p->buf_in );
-#endif
-
- /* Read the length of the packet */
- while ( p->sec_buf_in.buf_ptr < 4 ) {
- ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
- p->sec_buf_in.buf_ptr,
- 4 - p->sec_buf_in.buf_ptr );
-#ifdef EINTR
- if ( ( ret < 0 ) && ( errno == EINTR ) )
- continue;
-#endif
- if ( ret <= 0 )
- return bufptr ? bufptr : ret;
-
- p->sec_buf_in.buf_ptr += ret;
- }
-
- /* The new packet always starts at p->sec_buf_in.buf_base */
- ret = sb_sasl_pkt_length( (unsigned char *) p->sec_buf_in.buf_base,
- sbiod->sbiod_sb->sb_debug );
-
- /* Grow the packet buffer if neccessary */
- if ( ( p->sec_buf_in.buf_size < (ber_len_t) ret ) &&
- ber_pvt_sb_grow_buffer( &p->sec_buf_in, ret ) < 0 )
- {
- errno = ENOMEM;
- return -1;
- }
- p->sec_buf_in.buf_end = ret;
-
- /* Did we read the whole encrypted packet? */
- while ( p->sec_buf_in.buf_ptr < p->sec_buf_in.buf_end ) {
- /* No, we have got only a part of it */
- ret = p->sec_buf_in.buf_end - p->sec_buf_in.buf_ptr;
-
- ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
- p->sec_buf_in.buf_ptr, ret );
-#ifdef EINTR
- if ( ( ret < 0 ) && ( errno == EINTR ) )
- continue;
-#endif
- if ( ret <= 0 )
- return bufptr ? bufptr : ret;
-
- p->sec_buf_in.buf_ptr += ret;
- }
-
- /* Decode the packet */
- {
- unsigned tmpsize = p->buf_in.buf_end;
- ret = sasl_decode( p->sasl_context, p->sec_buf_in.buf_base,
- p->sec_buf_in.buf_end,
- (SASL_CONST char **)&p->buf_in.buf_base,
- (unsigned *)&tmpsize );
- p->buf_in.buf_end = tmpsize;
- }
-
- /* Drop the packet from the input buffer */
- sb_sasl_drop_packet( &p->sec_buf_in, sbiod->sbiod_sb->sb_debug );
+ dst->buf_size = tmpsize;
+ dst->buf_end = dst->buf_size;
if ( ret != SASL_OK ) {
- ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
- "sb_sasl_read: failed to decode packet: %s\n",
- sasl_errstring( ret, NULL, NULL ) );
- errno = EIO;
+ ber_log_printf( LDAP_DEBUG_ANY, p->sbiod->sbiod_sb->sb_debug,
+ "sb_sasl_cyrus_decode: failed to decode packet: %s\n",
+ sasl_errstring( ret, NULL, NULL ) );
return -1;
}
-
- p->buf_in.buf_size = p->buf_in.buf_end;
-
- bufptr += ber_pvt_sb_copy_out( &p->buf_in, (char*) buf + bufptr, len );
- return bufptr;
+ return 0;
}
-static ber_slen_t
-sb_sasl_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
+static void
+sb_sasl_cyrus_reset_buf(
+ struct sb_sasl_generic_data *p,
+ Sockbuf_Buf *buf)
{
- struct sb_sasl_data *p;
- int ret;
-
- assert( sbiod != NULL );
- assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
-
- p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
-
- /* Are there anything left in the buffer? */
- if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
- ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
- if ( ret < 0 ) return ret;
-
- /* Still have something left?? */
- if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
- errno = EAGAIN;
- return -1;
- }
- }
-
- /* now encode the next packet. */
#if SASL_VERSION_MAJOR >= 2
- ber_pvt_sb_buf_init( &p->buf_out );
+ ber_pvt_sb_buf_init( buf );
#else
- ber_pvt_sb_buf_destroy( &p->buf_out );
+ ber_pvt_sb_buf_destroy( buf );
#endif
- if ( len > *p->sasl_maxbuf - 100 ) {
- len = *p->sasl_maxbuf - 100; /* For safety margin */
- }
-
- {
- unsigned tmpsize = p->buf_out.buf_size;
- ret = sasl_encode( p->sasl_context, buf, len,
- (SASL_CONST char **)&p->buf_out.buf_base,
- &tmpsize );
- p->buf_out.buf_size = tmpsize;
- }
-
- if ( ret != SASL_OK ) {
- ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
- "sb_sasl_write: failed to encode packet: %s\n",
- sasl_errstring( ret, NULL, NULL ) );
- errno = EIO;
- return -1;
- }
- p->buf_out.buf_end = p->buf_out.buf_size;
-
- ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
-
- /* return number of bytes encoded, not written, to ensure
- * no byte is encoded twice (even if only sent once).
- */
- return len;
}
-static int
-sb_sasl_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
+static void
+sb_sasl_cyrus_fini(
+ struct sb_sasl_generic_data *p)
{
- struct sb_sasl_data *p;
-
- p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
-
- if ( opt == LBER_SB_OPT_DATA_READY ) {
- if ( p->buf_in.buf_ptr != p->buf_in.buf_end ) return 1;
- }
-
- return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
+#if SASL_VERSION_MAJOR >= 2
+ /*
+ * SASLv2 encode/decode buffers are managed by
+ * libsasl2. Ensure they are not freed by liblber.
+ */
+ p->buf_in.buf_base = NULL;
+ p->buf_out.buf_base = NULL;
+#endif
}
-Sockbuf_IO ldap_pvt_sockbuf_io_sasl = {
- sb_sasl_setup, /* sbi_setup */
- sb_sasl_remove, /* sbi_remove */
- sb_sasl_ctrl, /* sbi_ctrl */
- sb_sasl_read, /* sbi_read */
- sb_sasl_write, /* sbi_write */
- NULL /* sbi_close */
-};
+static const struct sb_sasl_generic_ops sb_sasl_cyrus_ops = {
+ sb_sasl_cyrus_init,
+ sb_sasl_cyrus_encode,
+ sb_sasl_cyrus_decode,
+ sb_sasl_cyrus_reset_buf,
+ sb_sasl_cyrus_fini
+ };
int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
{
- Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_install\n",
- 0, 0, 0 );
-
- /* don't install the stuff unless security has been negotiated */
+ struct sb_sasl_generic_install install_arg;
- if ( !ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO,
- &ldap_pvt_sockbuf_io_sasl ) )
- {
-#ifdef LDAP_DEBUG
- ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
- LBER_SBIOD_LEVEL_APPLICATION, (void *)"sasl_" );
-#endif
- ber_sockbuf_add_io( sb, &ldap_pvt_sockbuf_io_sasl,
- LBER_SBIOD_LEVEL_APPLICATION, ctx_arg );
- }
+ install_arg.ops = &sb_sasl_cyrus_ops;
+ install_arg.ops_private = ctx_arg;
- return LDAP_SUCCESS;
+ return ldap_pvt_sasl_generic_install( sb, &install_arg );
}
void ldap_pvt_sasl_remove( Sockbuf *sb )
{
- ber_sockbuf_remove_io( sb, &ldap_pvt_sockbuf_io_sasl,
- LBER_SBIOD_LEVEL_APPLICATION );
-#ifdef LDAP_DEBUG
- ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
- LBER_SBIOD_LEVEL_APPLICATION );
-#endif
+ ldap_pvt_sasl_generic_remove( sb );
}
static int
}
{
- char *saslhost = ldap_host_connected_to( ld->ld_defconn->lconn_sb,
+ char *saslhost;
+ int nocanon = (int)LDAP_BOOL_GET( &ld->ld_options,
+ LDAP_BOOL_SASL_NOCANON );
+
+ /* If we don't need to canonicalize just use the host
+ * from the LDAP URI.
+ */
+ if ( nocanon )
+ saslhost = ld->ld_defconn->lconn_server->lud_host;
+ else
+ saslhost = ldap_host_connected_to( ld->ld_defconn->lconn_sb,
"localhost" );
rc = ldap_int_sasl_open( ld, ld->ld_defconn, saslhost );
- LDAP_FREE( saslhost );
+ if ( !nocanon )
+ LDAP_FREE( saslhost );
}
if ( rc != LDAP_SUCCESS ) return rc;
ctx = ld->ld_defconn->lconn_sasl_authctx;
+#ifdef HAVE_TLS
/* Check for TLS */
ssl = ldap_pvt_tls_sb_ctx( ld->ld_defconn->lconn_sb );
if ( ssl ) {
(void) ldap_int_sasl_external( ld, ld->ld_defconn, authid.bv_val, fac );
LDAP_FREE( authid.bv_val );
}
+#endif
#if !defined(_WIN32)
/* Check for local */
{
char authid[sizeof("gidNumber=4294967295+uidNumber=4294967295,"
"cn=peercred,cn=external,cn=auth")];
- sprintf( authid, "gidNumber=%d+uidNumber=%d,"
+ sprintf( authid, "gidNumber=%u+uidNumber=%u,"
"cn=peercred,cn=external,cn=auth",
- (int) getegid(), (int) geteuid() );
+ getegid(), geteuid() );
(void) ldap_int_sasl_external( ld, ld->ld_defconn, authid,
LDAP_PVT_SASL_LOCAL_SSF );
}
/* and server provided us with data? */
Debug( LDAP_DEBUG_TRACE,
"ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
- rc, saslrc, scred ? scred->bv_len : -1 );
+ rc, saslrc, scred ? (long) scred->bv_len : -1L );
ber_bvfree( scred );
scred = NULL;
}
if( flags != LDAP_SASL_QUIET ) {
saslrc = sasl_getprop( ctx, SASL_USERNAME,
- (SASL_CONST void **) &data );
+ (SASL_CONST void **)(char *) &data );
if( saslrc == SASL_OK && data && *data ) {
fprintf( stderr, "SASL username: %s\n", data );
}
#endif
}
- saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **) &ssf );
+ saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **)(char *) &ssf );
if( saslrc == SASL_OK ) {
if( flags != LDAP_SASL_QUIET ) {
fprintf( stderr, "SASL SSF: %lu\n",
sasl_conn_t *ctx;
#if SASL_VERSION_MAJOR < 2
sasl_external_properties_t extprops;
+#else
+ sasl_ssf_t sasl_ssf = ssf;
#endif
ctx = conn->lconn_sasl_authctx;
}
#if SASL_VERSION_MAJOR >= 2
- sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
+ sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &sasl_ssf );
if ( sc == SASL_OK )
sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
#else
const char *in,
sasl_security_properties_t *secprops )
{
- int i, j, l;
+ unsigned i, j, l;
char **props;
unsigned sflags = 0;
int got_sflags = 0;
int
ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
{
+ if ( option == LDAP_OPT_X_SASL_MECHLIST ) {
+ if ( ldap_int_sasl_init() )
+ return -1;
+ *(char ***)arg = (char **)sasl_global_listmech();
+ return 0;
+ }
+
if ( ld == NULL )
return -1;
}
sc = sasl_getprop( ctx, SASL_SSF,
- (SASL_CONST void **) &ssf );
+ (SASL_CONST void **)(char *) &ssf );
if ( sc != SASL_OK ) {
return -1;
case LDAP_OPT_X_SASL_MAXBUFSIZE:
*(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
break;
+ case LDAP_OPT_X_SASL_NOCANON:
+ *(int *)arg = (int) LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
+ break;
+
+ case LDAP_OPT_X_SASL_USERNAME: {
+ int sc;
+ char *username;
+ sasl_conn_t *ctx;
+
+ if( ld->ld_defconn == NULL ) {
+ return -1;
+ }
+
+ ctx = ld->ld_defconn->lconn_sasl_authctx;
+
+ if ( ctx == NULL ) {
+ return -1;
+ }
+
+ sc = sasl_getprop( ctx, SASL_USERNAME,
+ (SASL_CONST void **)(char **) &username );
+
+ if ( sc != SASL_OK ) {
+ return -1;
+ }
+
+ *(char **)arg = username ? LDAP_STRDUP( username ) : NULL;
+ } break;
case LDAP_OPT_X_SASL_SECPROPS:
/* this option is write only */
return -1;
+#ifdef SASL_GSS_CREDS
+ case LDAP_OPT_X_SASL_GSS_CREDS: {
+ sasl_conn_t *ctx;
+ int sc;
+
+ if ( ld->ld_defconn == NULL )
+ return -1;
+
+ ctx = ld->ld_defconn->lconn_sasl_authctx;
+ if ( ctx == NULL )
+ return -1;
+
+ sc = sasl_getprop( ctx, SASL_GSS_CREDS, arg );
+ if ( sc != SASL_OK )
+ return -1;
+ }
+ break;
+#endif
+
default:
return -1;
}
int
ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
{
- if ( ld == NULL || arg == NULL )
+ if ( ld == NULL )
+ return -1;
+
+ if ( arg == NULL && option != LDAP_OPT_X_SASL_NOCANON )
return -1;
switch ( option ) {
case LDAP_OPT_X_SASL_SSF:
+ case LDAP_OPT_X_SASL_USERNAME:
/* This option is read-only */
return -1;
int sc;
#if SASL_VERSION_MAJOR < 2
sasl_external_properties_t extprops;
+#else
+ sasl_ssf_t sasl_ssf;
#endif
sasl_conn_t *ctx;
}
#if SASL_VERSION_MAJOR >= 2
- sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, arg);
+ sasl_ssf = * (ber_len_t *)arg;
+ sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &sasl_ssf);
#else
memset(&extprops, 0L, sizeof(extprops));
case LDAP_OPT_X_SASL_MAXBUFSIZE:
ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
break;
+ case LDAP_OPT_X_SASL_NOCANON:
+ if ( arg == LDAP_OPT_OFF ) {
+ LDAP_BOOL_CLR(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
+ } else {
+ LDAP_BOOL_SET(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
+ }
+ break;
case LDAP_OPT_X_SASL_SECPROPS: {
int sc;
return sc == LDAP_SUCCESS ? 0 : -1;
}
+#ifdef SASL_GSS_CREDS
+ case LDAP_OPT_X_SASL_GSS_CREDS: {
+ sasl_conn_t *ctx;
+ int sc;
+
+ if ( ld->ld_defconn == NULL )
+ return -1;
+
+ ctx = ld->ld_defconn->lconn_sasl_authctx;
+ if ( ctx == NULL )
+ return -1;
+
+ sc = sasl_setprop( ctx, SASL_GSS_CREDS, arg );
+ if ( sc != SASL_OK )
+ return -1;
+ }
+ break;
+#endif
+
default:
return -1;
}
{
ldap_pvt_thread_mutex_t *mutex;
- mutex = (ldap_pvt_thread_mutex_t *) LDAP_MALLOC(
+ mutex = (ldap_pvt_thread_mutex_t *) LDAP_CALLOC( 1,
sizeof(ldap_pvt_thread_mutex_t) );
if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
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