/* $OpenLDAP$ */
/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
-#include <ac/stdlib.h>
#include <stdio.h>
+#include <ac/stdlib.h>
+#include <ac/string.h>
#include <lber.h>
#include <ldap_log.h>
#ifdef HAVE_CYRUS_SASL
#include <limits.h>
+
+#ifdef HAVE_SASL_SASL_H
+#include <sasl/sasl.h>
+#else
#include <sasl.h>
+#endif
+
+#if SASL_VERSION_MAJOR >= 2
+#include <lutil.h>
+#include <sasl/saslplug.h>
+#define SASL_CONST const
+#else
+#define SASL_CONST
+#endif
#include <ldap_pvt.h>
#include <lutil.h>
#endif
+/* Flags for telling slap_sasl_getdn() what type of identity is being passed */
+#define FLAG_GETDN_AUTHCID 2
+#define FLAG_GETDN_AUTHZID 4
static sasl_security_properties_t sasl_secprops;
}
switch (priority) {
+#if SASL_VERSION_MAJOR >= 2
+ case SASL_LOG_NONE:
+ level = LDAP_DEBUG_NONE;
+ label = "None";
+ break;
+ case SASL_LOG_ERR:
+ level = LDAP_DEBUG_ANY;
+ label = "Error";
+ break;
+ case SASL_LOG_FAIL:
+ level = LDAP_DEBUG_ANY;
+ label = "Failure";
+ break;
+ case SASL_LOG_WARN:
+ level = LDAP_DEBUG_TRACE;
+ label = "Warning";
+ break;
+ case SASL_LOG_NOTE:
+ level = LDAP_DEBUG_TRACE;
+ label = "Notice";
+ break;
+ case SASL_LOG_DEBUG:
+ level = LDAP_DEBUG_TRACE;
+ label = "Debug";
+ break;
+ case SASL_LOG_TRACE:
+ level = LDAP_DEBUG_TRACE;
+ label = "Trace";
+ break;
+ case SASL_LOG_PASS:
+ level = LDAP_DEBUG_TRACE;
+ label = "Password Trace";
+ break;
+#else
case SASL_LOG_ERR:
level = LDAP_DEBUG_ANY;
label = "Error";
level = LDAP_DEBUG_TRACE;
label = "Info";
break;
+#endif
default:
return SASL_BADPARAM;
}
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "SASL [conn=%d] %s: %s\n",
+ "SASL [conn=%ld] %s: %s\n",
conn ? conn->c_connid : -1,
label, message ));
#else
- Debug( level, "SASL [conn=%d] %s: %s\n",
+ Debug( level, "SASL [conn=%ld] %s: %s\n",
conn ? conn->c_connid: -1,
label, message );
#endif
/* Take any sort of identity string and return a DN with the "dn:" prefix. The
- string returned in *dnptr is in its own allocated memory, and must be free'd
+ string returned in *dn is in its own allocated memory, and must be free'd
by the calling process.
-Mark Adamson, Carnegie Mellon
+
+ The "dn:" prefix is no longer used anywhere inside slapd. It is only used
+ on strings passed in directly from SASL.
+ -Howard Chu, Symas Corp.
*/
-int slap_sasl_getdn( Connection *conn, char *id, char **dnptr, int flags )
+#define SET_DN 1
+#define SET_U 2
+
+static struct berval ext_bv = { sizeof("EXTERNAL")-1, "EXTERNAL" };
+
+int slap_sasl_getdn( Connection *conn, char *id, int len,
+ char *user_realm, struct berval *dn, int flags )
{
- char *c=NULL, *c1, *dn=NULL;
- int rc, len;
+ char *c1;
+ int rc, is_dn = 0, do_norm = 1;
sasl_conn_t *ctx;
-
+ struct berval dn2;
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
id?(*id?id:"<empty>"):"NULL",0,0 );
#endif
+ dn->bv_val = NULL;
+ dn->bv_len = 0;
+
+ if ( id ) {
+ if ( len == 0 ) len = strlen( id );
- /* Blatantly anonymous ID */
- len = strlen( "anonymous" );
- if( id && !strncasecmp( id, "anonymous", len) &&
- ( id[len] == '\0' || id[len] == '@' ) ) {
- *dnptr = NULL;
- return( LDAP_SUCCESS );
+ /* Blatantly anonymous ID */
+ if ( len == sizeof("anonymous") - 1 &&
+ !strcasecmp( id, "anonymous" ) ) {
+ return( LDAP_SUCCESS );
+ }
+ } else {
+ len = 0;
}
+
ctx = conn->c_sasl_context;
- len = strlen( id );
- /* An authcID needs to be converted to authzID form */
+ /* An authcID needs to be converted to authzID form. Set the
+ * values directly into *dn; they will be normalized later. (and
+ * normalizing always makes a new copy.) An ID from a TLS certificate
+ * is already normalized, so copy it and skip normalization.
+ */
if( flags & FLAG_GETDN_AUTHCID ) {
- if( sasl_external_x509dn_convert && conn->c_sasl_bind_mech
- && ( strcasecmp( "EXTERNAL", conn->c_sasl_bind_mech ) == 0 )
- && len && id[0] == '/' /* && id[len-1]== '/' */)
+#ifdef HAVE_TLS
+ if( conn->c_is_tls && conn->c_sasl_bind_mech.bv_len == ext_bv.bv_len
+ && ( strcasecmp( ext_bv.bv_val, conn->c_sasl_bind_mech.bv_val ) == 0 ) ) {
+ /* X.509 DN is already normalized */
+ do_norm = 0;
+ is_dn = SET_DN;
+ ber_str2bv( id, len, 1, dn );
+
+ } else
+#endif
{
- /* check SASL external for X.509 style DN and */
- /* convert to dn:<dn> form */
- char *tmpdn = ldap_dcedn2dn( id );
- len = strlen( tmpdn );
-
- dn = ch_malloc( len+4 );
- dn[0] = 'd';
- dn[1] = 'n';
- dn[2] = ':';
- memmove( &dn[3], tmpdn, len+1 );
- len += 3;
-
- } else {
/* convert to u:<username> form */
- dn = ch_malloc( len+3 );
- dn[0] = 'u';
- dn[1] = ':';
- memmove( &dn[2], id, len+1 );
- len += 2;
+ is_dn = SET_U;
+ dn->bv_val = id;
+ dn->bv_len = len;
+ }
+ }
+ if( !is_dn ) {
+ if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
+ is_dn = SET_U;
+ dn->bv_val = id+2;
+ dn->bv_len = len-2;
+ } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
+ is_dn = SET_DN;
+ dn->bv_val = id+3;
+ dn->bv_len = len-3;
}
- } else {
- dn = ch_strdup( id );
}
- /* An authzID must be properly prefixed */
- if( flags & FLAG_GETDN_AUTHZID
- && strncasecmp( dn, "u:", 2 )
- && strncasecmp( dn, "dn:", 3 ) )
- {
- ch_free( dn );
- *dnptr = NULL;
+ /* No other possibilities from here */
+ if( !is_dn ) {
+ dn->bv_val = NULL;
+ dn->bv_len = 0;
return( LDAP_INAPPROPRIATE_AUTH );
}
/* Username strings */
- if( !strncasecmp( dn, "u:", 2 ) ) {
- int len1 = strlen( ",cn=auth" );
- len += strlen( "dn:uid=" ) + len1;
+ if( is_dn == SET_U ) {
+ char *p, *realm;
+ len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
+
+ /* username may have embedded realm name */
+ if( realm = strchr( dn->bv_val, '@') ) {
+ *realm++ = '\0';
+ len += sizeof(",cn=")-2;
+ } else if( user_realm && *user_realm ) {
+ len += strlen( user_realm ) + sizeof(",cn=")-1;
+ }
+
+ if( conn->c_sasl_bind_mech.bv_len ) {
+ len += conn->c_sasl_bind_mech.bv_len + sizeof(",cn=")-1;
+ }
+
+ /* Build the new dn */
+ c1 = dn->bv_val;
+ dn->bv_val = ch_malloc( len+1 );
+ p = slap_strcopy( dn->bv_val, "uid=" );
+ p = slap_strncopy( p, c1, dn->bv_len );
+
+ if( realm ) {
+ int rlen = dn->bv_len - ( realm - c1 );
+ p = slap_strcopy( p, ",cn=" );
+ p = slap_strncopy( p, realm, rlen );
+ realm[-1] = '@';
+ } else if( user_realm && *user_realm ) {
+ p = slap_strcopy( p, ",cn=" );
+ p = slap_strcopy( p, user_realm );
+ }
+
+ if( conn->c_sasl_bind_mech.bv_len ) {
+ p = slap_strcopy( p, ",cn=" );
+ p = slap_strcopy( p, conn->c_sasl_bind_mech.bv_val );
+ }
+ p = slap_strcopy( p, ",cn=auth" );
+ dn->bv_len = p - dn->bv_val;
- /* Figure out how much data we have for the dn */
- rc = sasl_getprop( ctx, SASL_REALM, (void **)&c );
- if( rc != SASL_OK && rc != SASL_NOTDONE ) {
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_getdn: getprop(REALM) failed.\n" ));
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val ));
#else
- Debug(LDAP_DEBUG_TRACE,
- "getdn: getprop(REALM) failed!\n", 0,0,0);
+ Debug( LDAP_DEBUG_TRACE, "getdn: u:id converted to %s\n", dn->bv_val,0,0 );
#endif
+ }
+
+ /* All strings are in DN form now. Normalize if needed. */
+ if ( do_norm ) {
+ rc = dnNormalize2( NULL, dn, &dn2 );
+
+ /* User DNs were constructed above and must be freed now */
+ if ( is_dn == SET_U )
+ ch_free( dn->bv_val );
- ch_free( dn );
- *dnptr = NULL;
- return( LDAP_OPERATIONS_ERROR );
+ if ( rc != LDAP_SUCCESS ) {
+ dn->bv_val = NULL;
+ dn->bv_len = 0;
+ return rc;
}
+ *dn = dn2;
+ }
- if( c && *c ) {
- len += strlen( c ) + strlen(",cn=" );
+ /* Run thru regexp */
+ slap_sasl2dn( conn, dn, &dn2 );
+ if( dn2.bv_val ) {
+ ch_free( dn->bv_val );
+ *dn = dn2;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
+ dn->bv_val, 0, 0 );
+#endif
+ }
+
+ return( LDAP_SUCCESS );
+}
+
+#if SASL_VERSION_MAJOR >= 2
+static const char *slap_propnames[] = { "*authcDN", "*authzDN", NULL };
+
+static void
+slap_auxprop_lookup(
+ void *glob_context,
+ sasl_server_params_t *sparams,
+ unsigned flags,
+ const char *user,
+ unsigned ulen)
+{
+ int rc, i, last;
+ struct berval dn;
+ const struct propval *list;
+ BerVarray vals, bv;
+ AttributeDescription *ad;
+ const char *text;
+
+ list = sparams->utils->prop_get( sparams->propctx );
+
+ /* Find our DN first */
+ for( i = 0, last = 0; list[i].name; i++ ) {
+ if ( list[i].name[0] == '*' ) {
+ if ( (flags & SASL_AUXPROP_AUTHZID) &&
+ !strcmp( list[i].name, slap_propnames[1] ) ) {
+ if ( list[i].values && list[i].values[0] )
+ AC_MEMCPY( &dn, list[i].values[0], sizeof( dn ) );
+ if ( !last ) last = i;
+ break;
+ }
+ if ( !strcmp( list[i].name, slap_propnames[0] ) ) {
+ if ( !last ) last = i;
+ if ( list[i].values && list[i].values[0] ) {
+ AC_MEMCPY( &dn, list[i].values[0], sizeof( dn ) );
+ if ( !(flags & SASL_AUXPROP_AUTHZID) )
+ break;
+ }
+ }
}
+ }
+
+ /* Now fetch the rest */
+ for( i = 0; i < last; i++ ) {
+ const char *name = list[i].name;
- if( conn->c_sasl_bind_mech ) {
- len += strlen( conn->c_sasl_bind_mech ) + strlen( ",cn=" );
+ if ( name[0] == '*' ) {
+ if ( flags & SASL_AUXPROP_AUTHZID ) continue;
+ name++;
+ } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
+ continue;
+
+ if ( list[i].values ) {
+ if ( !(flags & SASL_AUXPROP_OVERRIDE) ) continue;
+ sparams->utils->prop_erase( sparams->propctx, list[i].name );
+ }
+ ad = NULL;
+ rc = slap_str2ad( name, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
+ "slap_auxprop: str2ad(%s): %s\n", name, text ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "slap_auxprop: str2ad(%s): %s\n", name, text, 0 );
+#endif
+ rc = slap_str2undef_ad( name, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) continue;
+ }
+ rc = backend_attribute( NULL,NULL,NULL,NULL, &dn, ad, &vals );
+ if ( rc != LDAP_SUCCESS ) continue;
+ for ( bv = vals; bv->bv_val; bv++ ) {
+ sparams->utils->prop_set( sparams->propctx, list[i].name,
+ bv->bv_val, bv->bv_len );
}
+ ber_bvarray_free( vals );
+ }
+}
- /* Build the new dn */
- c1 = dn;
- dn = ch_malloc( len );
- len = sprintf( dn, "dn:uid=%s", c1+2 );
- ch_free( c1 );
+static sasl_auxprop_plug_t slap_auxprop_plugin = {
+ 0, /* Features */
+ 0, /* spare */
+ NULL, /* glob_context */
+ NULL, /* auxprop_free */
+ slap_auxprop_lookup,
+ "slapd", /* name */
+ NULL /* spare */
+};
+
+static int
+slap_auxprop_init(
+ const sasl_utils_t *utils,
+ int max_version,
+ int *out_version,
+ sasl_auxprop_plug_t **plug,
+ const char *plugname)
+{
+ if ( !out_version | !plug ) return SASL_BADPARAM;
+
+ if ( max_version < SASL_AUXPROP_PLUG_VERSION ) return SASL_BADVERS;
+
+ *out_version = SASL_AUXPROP_PLUG_VERSION;
+ *plug = &slap_auxprop_plugin;
+ return SASL_OK;
+}
+
+static int
+slap_sasl_checkpass(
+ sasl_conn_t *sconn,
+ void *context,
+ const char *username,
+ const char *pass,
+ unsigned passlen,
+ struct propctx *propctx)
+{
+ Connection *conn = (Connection *)context;
+ struct berval dn, cred;
+ int rc;
+ BerVarray vals, bv;
+
+ cred.bv_val = (char *)pass;
+ cred.bv_len = passlen;
+
+ /* SASL will fallback to its own mechanisms if we don't
+ * find an answer here.
+ */
- if( c ) {
- len += sprintf( dn+len, ",cn=%s", c );
+ rc = slap_sasl_getdn( conn, (char *)username, 0, NULL, &dn,
+ FLAG_GETDN_AUTHCID );
+ if ( rc != LDAP_SUCCESS ) {
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOUSER;
+ }
+
+ if ( dn.bv_len == 0 ) {
+ sasl_seterror( sconn, 0,
+ "No password is associated with the Root DSE" );
+ if ( dn.bv_val != NULL ) {
+ ch_free( dn.bv_val );
}
- if( conn->c_sasl_bind_mech ) {
- len += sprintf( dn+len, ",cn=%s", conn->c_sasl_bind_mech );
+ return SASL_NOUSER;
+ }
+
+ rc = backend_attribute( NULL, NULL, NULL, NULL, &dn,
+ slap_schema.si_ad_userPassword, &vals);
+ if ( rc != LDAP_SUCCESS ) {
+ ch_free( dn.bv_val );
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOVERIFY;
+ }
+
+ rc = SASL_NOVERIFY;
+
+ if ( vals != NULL ) {
+ for ( bv = vals; bv->bv_val != NULL; bv++ ) {
+ if ( !lutil_passwd( bv, &cred, NULL ) ) {
+ rc = SASL_OK;
+ break;
+ }
}
- strcpy( dn+len, ",cn=auth" );
- len += len1;
+ ber_bvarray_free( vals );
+ }
+
+ if ( rc != SASL_OK ) {
+ sasl_seterror( sconn, 0,
+ ldap_err2string( LDAP_INVALID_CREDENTIALS ) );
+ }
+
+ ch_free( dn.bv_val );
+
+ return rc;
+}
+
+/* Convert a SASL authcid or authzid into a DN. Store the DN in an
+ * auxiliary property, so that we can refer to it in sasl_authorize
+ * without interfering with anything else. Also, the SASL username
+ * buffer is constrained to 256 characters, and our DNs could be
+ * much longer (totally arbitrary length)...
+ */
+static int
+slap_sasl_canonicalize(
+ sasl_conn_t *sconn,
+ void *context,
+ const char *in,
+ unsigned inlen,
+ unsigned flags,
+ const char *user_realm,
+ char *out,
+ unsigned out_max,
+ unsigned *out_len)
+{
+ Connection *conn = (Connection *)context;
+ struct propctx *props = sasl_auxprop_getctx( sconn );
+ struct propval auxvals[3];
+ struct berval dn;
+ int rc, which;
+ const char *names[2];
+
+ *out_len = 0;
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_getdn: u:id converted to %s.\n", dn ));
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
+ in ? in : "<empty>" ));
#else
- Debug( LDAP_DEBUG_TRACE, "getdn: u:id converted to %s\n", dn,0,0 );
+ Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: "
+ "%s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
+ in ? in : "<empty>" );
#endif
+
+ /* If name is too big, just truncate. We don't care, we're
+ * using DNs, not the usernames.
+ */
+ if ( inlen > out_max )
+ inlen = out_max-1;
+
+ /* See if we need to add request, can only do it once */
+ prop_getnames( props, slap_propnames, auxvals );
+ if ( !auxvals[0].name )
+ prop_request( props, slap_propnames );
+
+ if ( flags & SASL_CU_AUTHID )
+ which = 0;
+ else
+ which = 1;
+
+ /* Already been here? */
+ if ( auxvals[which].values )
+ goto done;
+
+ if ( flags == SASL_CU_AUTHZID ) {
+ /* If we got unqualified authzid's, they probably came from SASL
+ * itself just passing the authcid to us. Look inside the oparams
+ * structure to see if that's true. (HACK: the out_len pointer is
+ * the address of a member of a sasl_out_params_t structure...)
+ */
+ sasl_out_params_t dummy;
+ int offset = (void *)&dummy.ulen - (void *)&dummy.authid;
+ char **authid = (void *)out_len - offset;
+ if ( *authid && !strcmp( in, *authid ) )
+ goto done;
}
- /* DN strings that are a cn=auth identity to run through regexp */
- if( !strncasecmp( dn, "dn:", 3) && ( ( flags & FLAG_GETDN_FINAL ) == 0 ) ) {
- c1 = slap_sasl2dn( dn + 3 );
- if( c1 ) {
- ch_free( dn );
- dn = c1;
- /* Reaffix the dn: prefix if it was removed */
- if( strncasecmp( dn, "dn:", 3) ) {
- c1 = dn;
- dn = ch_malloc( strlen( c1 ) + 4 );
- sprintf( dn, "dn:%s", c1 );
- ch_free( c1 );
- }
+ rc = slap_sasl_getdn( conn, (char *)in, inlen, (char *)user_realm, &dn,
+ (flags & SASL_CU_AUTHID) ? FLAG_GETDN_AUTHCID : FLAG_GETDN_AUTHZID );
+ if ( rc != LDAP_SUCCESS ) {
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOAUTHZ;
+ }
+
+ names[0] = slap_propnames[which];
+ names[1] = NULL;
+ prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
+
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_getdn: dn:id converted to %s.\n", dn ));
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ names[0]+1, dn.bv_val ));
#else
- Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n", dn,0,0 );
+ Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: "
+ "%s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ names[0]+1, dn.bv_val );
#endif
- }
+done: AC_MEMCPY( out, in, inlen );
+ out[inlen] = '\0';
+
+ *out_len = inlen;
+
+ return SASL_OK;
+}
+
+static int
+slap_sasl_authorize(
+ sasl_conn_t *sconn,
+ void *context,
+ char *requested_user,
+ unsigned rlen,
+ char *auth_identity,
+ unsigned alen,
+ const char *def_realm,
+ unsigned urlen,
+ struct propctx *props)
+{
+ Connection *conn = (Connection *)context;
+ struct propval auxvals[3];
+ struct berval authcDN, authzDN;
+ int rc;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
+ conn ? conn->c_connid : -1, auth_identity, requested_user));
+#else
+ Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
+ "authcid=\"%s\" authzid=\"%s\"\n",
+ conn ? conn->c_connid : -1, auth_identity, requested_user );
+#endif
+ if ( conn->c_sasl_dn.bv_val ) {
+ ch_free( conn->c_sasl_dn.bv_val );
+ conn->c_sasl_dn.bv_val = NULL;
+ conn->c_sasl_dn.bv_len = 0;
}
- if( ( flags & FLAG_GETDN_FINAL ) == 0 ) {
- dn_normalize( dn+3 );
+ prop_getnames( props, slap_propnames, auxvals );
+
+ AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
+
+ /* Nothing to do if no authzID was given */
+ if ( !auxvals[1].name || !auxvals[1].values ) {
+ conn->c_sasl_dn = authcDN;
+ return SASL_OK;
}
+
+ AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
- *dnptr = dn;
- return( LDAP_SUCCESS );
-}
+ rc = slap_sasl_authorized( &authcDN, &authzDN );
+ ch_free( authcDN.bv_val );
+ if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
+ "slap_sasl_authorize: conn %ld authorization disallowed (%d)\n",
+ (long)(conn ? conn->c_connid : -1), rc ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization disallowed (%d)\n",
+ (long) (conn ? conn->c_connid : -1), rc, 0 );
+#endif
+ sasl_seterror( sconn, 0, "not authorized" );
+ ch_free( authzDN.bv_val );
+ return SASL_NOAUTHZ;
+ }
+ conn->c_sasl_dn = authzDN;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authorization allowed\n",
+ (long)(conn ? conn->c_connid : -1 ) ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization allowed\n",
+ (long) (conn ? conn->c_connid : -1), 0, 0 );
+#endif
+ return SASL_OK;
+}
+#else
static int
slap_sasl_authorize(
void *context,
- const char *authcid,
- const char *authzid,
+ char *authcid,
+ char *authzid,
const char **user,
const char **errstr)
{
- char *authcDN, *authzDN;
+ struct berval authcDN, authzDN;
int rc;
Connection *conn = context;
+ char *realm;
*user = NULL;
+ if ( conn->c_sasl_dn.bv_val ) {
+ ch_free( conn->c_sasl_dn.bv_val );
+ conn->c_sasl_dn.bv_val = NULL;
+ conn->c_sasl_dn.bv_len = 0;
+ }
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sas_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
+ "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
conn ? conn->c_connid : -1,
authcid ? authcid : "<empty>",
authzid ? authzid : "<empty>" ));
authzid ? authzid : "<empty>" );
#endif
+ /* Figure out how much data we have for the dn */
+ rc = sasl_getprop( conn->c_sasl_context, SASL_REALM, (void **)&realm );
+ if( rc != SASL_OK && rc != SASL_NOTDONE ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_authorize: getprop(REALM) failed.\n" ));
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "authorize: getprop(REALM) failed!\n", 0,0,0);
+#endif
+ *errstr = "Could not extract realm";
+ return SASL_NOAUTHZ;
+ }
/* Convert the identities to DN's. If no authzid was given, client will
be bound as the DN matching their username */
- rc = slap_sasl_getdn( conn, (char *)authcid, &authcDN, FLAG_GETDN_AUTHCID );
+ rc = slap_sasl_getdn( conn, (char *)authcid, 0, realm, &authcDN, FLAG_GETDN_AUTHCID );
if( rc != LDAP_SUCCESS ) {
*errstr = ldap_err2string( rc );
return SASL_NOAUTHZ;
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
"slap_sasl_authorize: conn %d Using authcDN=%s\n",
- conn ? conn->c_connid : -1, authcDN ));
+ conn ? conn->c_connid : -1, authcDN.bv_val ));
#else
Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
- "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN,0 );
+ "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
#endif
- *user = authcDN;
+ conn->c_sasl_dn = authcDN;
*errstr = NULL;
return SASL_OK;
}
- rc = slap_sasl_getdn( conn, (char *)authzid, &authzDN, FLAG_GETDN_AUTHZID );
+ rc = slap_sasl_getdn( conn, (char *)authzid, 0, realm, &authzDN, FLAG_GETDN_AUTHZID );
if( rc != LDAP_SUCCESS ) {
- ch_free( authcDN );
+ ch_free( authcDN.bv_val );
*errstr = ldap_err2string( rc );
return SASL_NOAUTHZ;
}
- rc = slap_sasl_authorized( authcDN, authzDN );
+ rc = slap_sasl_authorized( &authcDN, &authzDN );
+ ch_free( authcDN.bv_val );
if( rc ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
#endif
*errstr = "not authorized";
- ch_free( authcDN );
- ch_free( authzDN );
+ ch_free( authzDN.bv_val );
return SASL_NOAUTHZ;
}
(long) (conn ? conn->c_connid : -1), 0, 0 );
#endif
-
- ch_free( authcDN );
- *user = authzDN;
+ conn->c_sasl_dn = authzDN;
*errstr = NULL;
return SASL_OK;
}
-
+#endif /* SASL_VERSION_MAJOR >= 2 */
static int
slap_sasl_err2ldap( int saslerr )
ldap_pvt_sasl_mutex_unlock,
ldap_pvt_sasl_mutex_dispose );
+#if SASL_VERSION_MAJOR >= 2
+ sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
+#endif
/* should provide callbacks for logging */
/* server name should be configurable */
rc = sasl_server_init( server_callbacks, "slapd" );
/* default security properties */
memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
- sasl_secprops.max_ssf = INT_MAX;
- sasl_secprops.maxbufsize = 65536;
- sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
+ sasl_secprops.max_ssf = INT_MAX;
+ sasl_secprops.maxbufsize = 65536;
+ sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
#endif
return 0;
#ifdef HAVE_CYRUS_SASL
sasl_done();
#endif
+ free( global_host );
+ global_host = NULL;
+
return 0;
}
int slap_sasl_open( Connection *conn )
{
- int sc = LDAP_SUCCESS;
+ int cb, sc = LDAP_SUCCESS;
+#if SASL_VERSION_MAJOR >= 2
+ char *ipremoteport = NULL, *iplocalport = NULL;
+#endif
#ifdef HAVE_CYRUS_SASL
sasl_conn_t *ctx = NULL;
conn->c_sasl_layers = 0;
session_callbacks =
+#if SASL_VERSION_MAJOR >= 2
+ ch_calloc( 5, sizeof(sasl_callback_t));
+#else
ch_calloc( 3, sizeof(sasl_callback_t));
+#endif
conn->c_sasl_extra = session_callbacks;
- session_callbacks[0].id = SASL_CB_LOG;
- session_callbacks[0].proc = &slap_sasl_log;
- session_callbacks[0].context = conn;
+ session_callbacks[cb=0].id = SASL_CB_LOG;
+ session_callbacks[cb].proc = &slap_sasl_log;
+ session_callbacks[cb++].context = conn;
+
+ session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
+ session_callbacks[cb].proc = &slap_sasl_authorize;
+ session_callbacks[cb++].context = conn;
+
+#if SASL_VERSION_MAJOR >= 2
+ session_callbacks[cb].id = SASL_CB_CANON_USER;
+ session_callbacks[cb].proc = &slap_sasl_canonicalize;
+ session_callbacks[cb++].context = conn;
- session_callbacks[1].id = SASL_CB_PROXY_POLICY;
- session_callbacks[1].proc = &slap_sasl_authorize;
- session_callbacks[1].context = conn;
+ /* XXXX: this should be conditional */
+ session_callbacks[cb].id = SASL_CB_SERVER_USERDB_CHECKPASS;
+ session_callbacks[cb].proc = &slap_sasl_checkpass;
+ session_callbacks[cb++].context = conn;
+#endif
- session_callbacks[2].id = SASL_CB_LIST_END;
- session_callbacks[2].proc = NULL;
- session_callbacks[2].context = NULL;
+ session_callbacks[cb].id = SASL_CB_LIST_END;
+ session_callbacks[cb].proc = NULL;
+ session_callbacks[cb++].context = NULL;
if( global_host == NULL ) {
global_host = ldap_pvt_get_fqdn( NULL );
}
/* create new SASL context */
+#if SASL_VERSION_MAJOR >= 2
+ if ( conn->c_sock_name.bv_len != 0 &&
+ strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
+ char *p;
+
+ iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
+ /* Convert IPv6 addresses to address;port syntax. */
+ p = strrchr( iplocalport, ' ' );
+ /* Convert IPv4 addresses to address;port syntax. */
+ if ( p == NULL ) p = strchr( iplocalport, ':' );
+ if ( p != NULL ) {
+ *p = ';';
+ }
+ }
+ if ( conn->c_peer_name.bv_len != 0 &&
+ strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
+ char *p;
+
+ ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
+ /* Convert IPv6 addresses to address;port syntax. */
+ p = strrchr( ipremoteport, ' ' );
+ /* Convert IPv4 addresses to address;port syntax. */
+ if ( p == NULL ) p = strchr( ipremoteport, ':' );
+ if ( p != NULL ) {
+ *p = ';';
+ }
+ }
+ sc = sasl_server_new( "ldap", global_host, global_realm,
+ iplocalport, ipremoteport, session_callbacks, 0, &ctx );
+ if ( iplocalport != NULL ) {
+ ch_free( iplocalport );
+ }
+ if ( ipremoteport != NULL ) {
+ ch_free( ipremoteport );
+ }
+#else
sc = sasl_server_new( "ldap", global_host, global_realm,
session_callbacks, SASL_SECURITY_LAYER, &ctx );
+#endif
if( sc != SASL_OK ) {
#ifdef NEW_LOGGING
slap_ssf_t ssf,
const char *auth_id )
{
-#ifdef HAVE_CYRUS_SASL
+#if SASL_VERSION_MAJOR >= 2
+ int sc;
+ sasl_conn_t *ctx = conn->c_sasl_context;
+
+ if ( ctx == NULL ) {
+ return LDAP_UNAVAILABLE;
+ }
+
+ sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
+
+ if ( sc != SASL_OK ) {
+ return LDAP_OTHER;
+ }
+
+ sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, auth_id );
+
+ if ( sc != SASL_OK ) {
+ return LDAP_OTHER;
+ }
+
+#elif defined(HAVE_CYRUS_SASL)
int sc;
sasl_conn_t *ctx = conn->c_sasl_context;
sasl_external_properties_t extprops;
if( ctx != NULL ) {
int sc;
- char *mechstr;
+ SASL_CONST char *mechstr;
sc = sasl_listmech( ctx,
NULL, NULL, ",", NULL,
if( sc != SASL_OK ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
+ "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
#else
Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
sc, 0, 0 );
mechs = str2charray( mechstr, "," );
+#if SASL_VERSION_MAJOR < 2
ch_free( mechstr );
+#endif
}
#endif
int slap_sasl_bind(
Connection *conn,
Operation *op,
- const char *dn,
- const char *ndn,
+ struct berval *dn,
+ struct berval *ndn,
struct berval *cred,
- char **edn,
- slap_ssf_t *ssfp )
+ struct berval *edn,
+ slap_ssf_t *ssfp )
{
int rc = 1;
sasl_conn_t *ctx = conn->c_sasl_context;
struct berval response;
unsigned reslen = 0;
- const char *errstr;
+ const char *errstr = NULL;
int sc;
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%d\n",
- conn->c_connid, dn,
- conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech,
- cred ? cred->bv_len : 0 ));
+ "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%ld\n",
+ conn->c_connid,
+ dn->bv_len ? dn->bv_val : "",
+ conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech.bv_val,
+ cred ? cred->bv_len : 0 ));
#else
Debug(LDAP_DEBUG_ARGS,
- "==> sasl_bind: dn=\"%s\" mech=%s datalen=%d\n", dn,
- conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech,
- cred ? cred->bv_len : 0 );
+ "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
+ dn->bv_len ? dn->bv_val : "",
+ conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech.bv_val,
+ cred ? cred->bv_len : 0 );
#endif
return rc;
}
+#if SASL_VERSION_MAJOR >= 2
+#define START( ctx, mech, cred, clen, resp, rlen, err ) \
+ sasl_server_start( ctx, mech, cred, clen, resp, rlen )
+#define STEP( ctx, cred, clen, resp, rlen, err ) \
+ sasl_server_step( ctx, cred, clen, resp, rlen )
+#else
+#define START( ctx, mech, cred, clen, resp, rlen, err ) \
+ sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
+#define STEP( ctx, cred, clen, resp, rlen, err ) \
+ sasl_server_step( ctx, cred, clen, resp, rlen, err )
+#endif
+
if ( !conn->c_sasl_bind_in_progress ) {
- sc = sasl_server_start( ctx,
- conn->c_sasl_bind_mech,
+ sc = START( ctx,
+ conn->c_sasl_bind_mech.bv_val,
cred->bv_len ? cred->bv_val : "",
cred->bv_len,
- (char **)&response.bv_val, &reslen, &errstr );
+ (SASL_CONST char **)&response.bv_val, &reslen, &errstr );
} else {
- sc = sasl_server_step( ctx,
+ sc = STEP( ctx,
cred->bv_val, cred->bv_len,
- (char **)&response.bv_val, &reslen, &errstr );
+ (SASL_CONST char **)&response.bv_val, &reslen, &errstr );
}
response.bv_len = reslen;
if ( sc == SASL_OK ) {
- char *username = NULL;
-
- sc = sasl_getprop( ctx,
- SASL_USERNAME, (void **)&username );
-
- if ( sc != SASL_OK ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
-#else
- Debug(LDAP_DEBUG_TRACE,
- "slap_sasl_bind: getprop(USERNAME) failed!\n",
- 0, 0, 0);
-#endif
+ sasl_ssf_t *ssf = NULL;
+ *edn = conn->c_sasl_dn;
+ conn->c_sasl_dn.bv_val = NULL;
+ conn->c_sasl_dn.bv_len = 0;
- send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
- NULL, "no SASL username", NULL, NULL );
+ rc = LDAP_SUCCESS;
- } else {
- rc = slap_sasl_getdn( conn, username, edn, FLAG_GETDN_FINAL );
+ (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
+ *ssfp = ssf ? *ssf : 0;
- if( rc == LDAP_SUCCESS ) {
- int i;
- sasl_ssf_t *ssf = NULL;
- (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
- *ssfp = ssf ? *ssf : 0;
-
- if( *ssfp ) {
- ldap_pvt_thread_mutex_lock( &conn->c_mutex );
- conn->c_sasl_layers++;
- ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
- }
-
- /* Store the authorization DN as a subjectDN */
- if ( *edn ) {
- i = 2;
- do {
- i++;
- (*edn)[i-3] = (*edn)[i];
- } while( (*edn)[i] );
- }
-
- send_ldap_sasl( conn, op, rc,
- NULL, NULL, NULL, NULL,
- response.bv_len ? &response : NULL );
-
- } else {
- send_ldap_result( conn, op, rc,
- NULL, errstr, NULL, NULL );
- }
+ if( *ssfp ) {
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ conn->c_sasl_layers++;
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
}
+ send_ldap_sasl( conn, op, rc,
+ NULL, NULL, NULL, NULL,
+ response.bv_len ? &response : NULL );
+
} else if ( sc == SASL_CONTINUE ) {
send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
NULL, NULL, NULL, NULL, &response );
} else {
+#if SASL_VERSION_MAJOR >= 2
+ errstr = sasl_errdetail( ctx );
+#endif
send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
NULL, errstr, NULL, NULL );
}
+#if SASL_VERSION_MAJOR < 2
+ if( response.bv_len ) {
+ ch_free( response.bv_val );
+ }
+#endif
+
#ifdef NEW_LOGGING
LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_bind: rc=%d\n", rc ));
+ "slap_sasl_bind: rc=%d\n", rc ));
#else
Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rc, 0, 0);
#endif
return "SASL not supported";
#endif
}
+
+#ifdef HAVE_CYRUS_SASL
+int
+slap_sasl_setpass(
+ Connection *conn,
+ Operation *op,
+ const char *reqoid,
+ struct berval *reqdata,
+ char **rspoid,
+ struct berval **rspdata,
+ LDAPControl *** rspctrls,
+ const char **text )
+{
+ int rc;
+ struct berval id = { 0, NULL }; /* needs to come from connection */
+ struct berval new = { 0, NULL };
+ struct berval old = { 0, NULL };
+
+ assert( reqoid != NULL );
+ assert( strcmp( LDAP_EXOP_MODIFY_PASSWD, reqoid ) == 0 );
+
+ rc = sasl_getprop( conn->c_sasl_context, SASL_USERNAME,
+ (SASL_CONST void **)&id.bv_val );
+
+ if( rc != SASL_OK ) {
+ *text = "unable to retrieve SASL username";
+ rc = LDAP_OTHER;
+ goto done;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+ "slap_sasl_setpass: \"%s\"\n",
+ id.bv_val ? id.bv_val : "" ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "==> ldbm_back_exop_passwd: \"%s\"\n",
+ id.bv_val ? id.bv_val : "", 0, 0 );
+#endif
+
+ rc = slap_passwd_parse( reqdata,
+ NULL, &old, &new, text );
+
+ if( rc != LDAP_SUCCESS ) {
+ goto done;
+ }
+
+ if( new.bv_len == 0 ) {
+ slap_passwd_generate(&new);
+
+ if( new.bv_len == 0 ) {
+ *text = "password generation failed.";
+ rc = LDAP_OTHER;
+ goto done;
+ }
+
+ *rspdata = slap_passwd_return( &new );
+ }
+
+#if SASL_VERSION_MAJOR < 2
+ rc = sasl_setpass( conn->c_sasl_context,
+ id.bv_val, new.bv_val, new.bv_len, 0, text );
+#else
+ rc = sasl_setpass( conn->c_sasl_context, id.bv_val,
+ old.bv_val, old.bv_len, new.bv_val, new.bv_len, 0 );
+ if( rc != SASL_OK ) {
+ *text = sasl_errdetail( conn->c_sasl_context );
+ }
+#endif
+ switch(rc) {
+ case SASL_OK:
+ rc = LDAP_SUCCESS;
+ break;
+
+ case SASL_NOCHANGE:
+ case SASL_NOMECH:
+ case SASL_DISABLED:
+ case SASL_PWLOCK:
+ case SASL_FAIL:
+ case SASL_BADPARAM:
+ default:
+ rc = LDAP_OTHER;
+ }
+
+done:
+ return rc;
+}
+#endif