X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fsaslauthz.c;h=2b59052bd3aeaee3246235a1e2add3f3b885fa00;hb=49fac602e138e36ee43e3e58c753e743d6e99e22;hp=e7dfe22320aef71f4c914ca3290a57aafce85a12;hpb=f49fd8a98e6849f74e50a01165f4214b065b9b00;p=openldap diff --git a/servers/slapd/saslauthz.c b/servers/slapd/saslauthz.c index e7dfe22320..2b59052bd3 100644 --- a/servers/slapd/saslauthz.c +++ b/servers/slapd/saslauthz.c @@ -1,409 +1,602 @@ -/* - * Copyright (c) 2000, Mark Adamson, Carnegie Mellon. All rights reserved. - * This software is not subject to any license of Carnegie Mellon University. +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software . * - * Redistribution and use in source and binary forms are permitted without - * restriction or fee of any kind as long as this notice is preserved. + * Copyright 1998-2004 The OpenLDAP Foundation. + * Portions Copyright 2000 Mark Adamson, Carnegie Mellon. + * All rights reserved. * - * The name "Carnegie Mellon" must not be used to endorse or promote - * products derived from this software without prior written permission. + * 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 + * . */ #include "portable.h" -#include #include -#include "slap.h" -#include "proto-slap.h" - +#include #include -#ifdef HAVE_CYRUS_SASL +#include "slap.h" + #include -#include + #include -#endif +#define SASLREGEX_REPLACE 10 +#define LDAP_X_SCOPE_EXACT ((ber_int_t) 0x0010) +#define LDAP_X_SCOPE_REGEX ((ber_int_t) 0x0020) +#define LDAP_X_SCOPE_CHILDREN ((ber_int_t) 0x0030) +#define LDAP_X_SCOPE_SUBTREE ((ber_int_t) 0x0040) +#define LDAP_X_SCOPE_ONELEVEL ((ber_int_t) 0x0050) +/* + * IDs in DNauthzid form can now have a type specifier, that + * influences how they are used in related operations. + * + * syntax: dn[.{exact|regex}]: + * + * dn.exact: the value must pass normalization and is used + * in exact DN match. + * dn.regex: the value is treated as a regular expression + * in matching DN values in saslAuthz{To|From} + * attributes. + * dn: for backwards compatibility reasons, the value + * is treated as a regular expression, and thus + * it is not normalized nor validated; it is used + * in exact or regex comparisons based on the + * context. + * + * IDs in DNauthzid form can now have a type specifier, that + * influences how they are used in related operations. + * + * syntax: u[.mech[/realm]]: + * + * where mech is a SIMPLE, AUTHZ, or a SASL mechanism name + * and realm is mechanism specific realm (separate to those + * which are representable as part of the principal). + */ +typedef struct sasl_regexp { + char *sr_match; /* regexp match pattern */ + char *sr_replace; /* regexp replace pattern */ + regex_t sr_workspace; /* workspace for regexp engine */ + int sr_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */ +} SaslRegexp_t; -/* URI format: ldap:///[?[][?[][?[]]]] */ +static int nSaslRegexp = 0; +static SaslRegexp_t *SaslRegexp = NULL; -int slap_parseURI( char *uri, char **searchbase, int *scope, Filter **filter ) +/* What SASL proxy authorization policies are allowed? */ +#define SASL_AUTHZ_NONE 0x00 +#define SASL_AUTHZ_FROM 0x01 +#define SASL_AUTHZ_TO 0x02 +#define SASL_AUTHZ_AND 0x10 + +static int authz_policy = SASL_AUTHZ_NONE; + +int slap_sasl_setpolicy( const char *arg ) { - char *start, *end; + int rc = LDAP_SUCCESS; + + if ( strcasecmp( arg, "none" ) == 0 ) { + authz_policy = SASL_AUTHZ_NONE; + } else if ( strcasecmp( arg, "from" ) == 0 ) { + authz_policy = SASL_AUTHZ_FROM; + } else if ( strcasecmp( arg, "to" ) == 0 ) { + authz_policy = SASL_AUTHZ_TO; + } else if ( strcasecmp( arg, "both" ) == 0 || strcasecmp( arg, "any" ) == 0 ) { + authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO; + } else if ( strcasecmp( arg, "all" ) == 0 ) { + authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO | SASL_AUTHZ_AND; + } else { + rc = LDAP_OTHER; + } + return rc; +} + +int slap_parse_user( struct berval *id, struct berval *user, + struct berval *realm, struct berval *mech ) +{ + char u; + + assert( id ); + assert( id->bv_val ); + assert( user ); + assert( realm ); + assert( mech ); + + u = id->bv_val[ 0 ]; + + if ( u != 'u' && u != 'U' ) { + /* called with something other than u: */ + return LDAP_PROTOCOL_ERROR; + } + + /* uauthzid form: + * u[.mech[/realm]]:user + */ + + user->bv_val = strchr( id->bv_val, ':' ); + if ( user->bv_val == NULL ) { + return LDAP_PROTOCOL_ERROR; + } + user->bv_val[ 0 ] = '\0'; + user->bv_val++; + user->bv_len = id->bv_len - ( user->bv_val - id->bv_val ); + + mech->bv_val = strchr( id->bv_val, '.' ); + if ( mech->bv_val != NULL ) { + mech->bv_val[ 0 ] = '\0'; + mech->bv_val++; + + realm->bv_val = strchr( mech->bv_val, '/' ); + + if ( realm->bv_val ) { + realm->bv_val[ 0 ] = '\0'; + realm->bv_val++; + mech->bv_len = realm->bv_val - mech->bv_val - 1; + realm->bv_len = user->bv_val - realm->bv_val - 1; + } else { + mech->bv_len = user->bv_val - mech->bv_val - 1; + } + + } else { + realm->bv_val = NULL; + } + + if ( id->bv_val[ 1 ] != '\0' ) { + return LDAP_PROTOCOL_ERROR; + } + + if ( mech->bv_val != NULL ) { + assert( mech->bv_val == id->bv_val + 2 ); + + AC_MEMCPY( mech->bv_val - 2, mech->bv_val, mech->bv_len + 1 ); + mech->bv_val -= 2; + } + + if ( realm->bv_val ) { + assert( realm->bv_val >= id->bv_val + 2 ); + + AC_MEMCPY( realm->bv_val - 2, realm->bv_val, realm->bv_len + 1 ); + realm->bv_val -= 2; + } + + /* leave "u:" before user */ + user->bv_val -= 2; + user->bv_len += 2; + user->bv_val[ 0 ] = u; + user->bv_val[ 1 ] = ':'; + return LDAP_SUCCESS; +} - assert( uri != NULL ); - *searchbase = NULL; +static int slap_parseURI( Operation *op, struct berval *uri, + struct berval *base, struct berval *nbase, + int *scope, Filter **filter, struct berval *fstr ) +{ + struct berval bv; + int rc; + LDAPURLDesc *ludp; + + assert( uri != NULL && uri->bv_val != NULL ); + base->bv_val = NULL; + base->bv_len = 0; + nbase->bv_val = NULL; + nbase->bv_len = 0; + fstr->bv_val = NULL; + fstr->bv_len = 0; *scope = -1; *filter = NULL; #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_parseURI: parsing %s\n", uri )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_parseURI: parsing %s\n", uri->bv_val, 0, 0 ); #else - Debug( LDAP_DEBUG_TRACE, "slap_parseURI: parsing %s\n", uri, 0, 0 ); + Debug( LDAP_DEBUG_TRACE, + "slap_parseURI: parsing %s\n", uri->bv_val, 0, 0 ); #endif + rc = LDAP_PROTOCOL_ERROR; + if ( !strncasecmp( uri->bv_val, "dn", sizeof( "dn" ) - 1 ) ) { + bv.bv_val = uri->bv_val + sizeof( "dn" ) - 1; - /* If it does not look like a URI, assume it is a DN */ - if( !strncasecmp( uri, "dn:", 3 ) ) { - uri += 3; - uri += strspn( uri, " " ); - *searchbase = ch_strdup( uri ); - dn_normalize( *searchbase ); - *scope = LDAP_SCOPE_BASE; - return( LDAP_SUCCESS ); - } - if( strncasecmp( uri, "ldap://", 7 ) ) { - *searchbase = ch_strdup( uri ); - dn_normalize( *searchbase ); - *scope = LDAP_SCOPE_BASE; - return( LDAP_SUCCESS ); - } + if ( bv.bv_val[ 0 ] == '.' ) { + bv.bv_val++; - end = strchr( uri + 7, '/' ); - if ( end == NULL ) - return( LDAP_PROTOCOL_ERROR ); + if ( !strncasecmp( bv.bv_val, "exact:", sizeof( "exact:" ) - 1 ) ) { + bv.bv_val += sizeof( "exact:" ) - 1; + *scope = LDAP_X_SCOPE_EXACT; - /* could check the hostname here */ + } else if ( !strncasecmp( bv.bv_val, "regex:", sizeof( "regex:" ) - 1 ) ) { + bv.bv_val += sizeof( "regex:" ) - 1; + *scope = LDAP_X_SCOPE_REGEX; - /* Grab the searchbase */ - start = end+1; - end = strchr( start, '?' ); - if( end == NULL ) { - *searchbase = ch_strdup( start ); - dn_normalize( *searchbase ); - return( LDAP_SUCCESS ); - } - *end = '\0'; - *searchbase = ch_strdup( start ); - *end = '?'; - dn_normalize( *searchbase ); + } else if ( !strncasecmp( bv.bv_val, "children:", sizeof( "chldren:" ) - 1 ) ) { + bv.bv_val += sizeof( "children:" ) - 1; + *scope = LDAP_X_SCOPE_CHILDREN; - /* Skip the attrs */ - start = end+1; - end = strchr( start, '?' ); - if( end == NULL ) { - return( LDAP_SUCCESS ); - } + } else if ( !strncasecmp( bv.bv_val, "subtree:", sizeof( "subtree:" ) - 1 ) ) { + bv.bv_val += sizeof( "subtree:" ) - 1; + *scope = LDAP_X_SCOPE_SUBTREE; - /* Grab the scope */ - start = end+1; - if( !strncasecmp( start, "base?", 5 )) { - *scope = LDAP_SCOPE_BASE; - start += 5; - } - else if( !strncasecmp( start, "one?", 4 )) { - *scope = LDAP_SCOPE_ONELEVEL; - start += 4; - } - else if( !strncasecmp( start, "sub?", 3 )) { - *scope = LDAP_SCOPE_SUBTREE; - start += 4; - } - else { - ch_free( *searchbase ); - *searchbase = NULL; - return( LDAP_PROTOCOL_ERROR ); - } + } else if ( !strncasecmp( bv.bv_val, "onelevel:", sizeof( "onelevel:" ) - 1 ) ) { + bv.bv_val += sizeof( "onelevel:" ) - 1; + *scope = LDAP_X_SCOPE_ONELEVEL; - /* Grab the filter */ - *filter = str2filter( start ); + } else { + return LDAP_PROTOCOL_ERROR; + } + } else { + if ( bv.bv_val[ 0 ] != ':' ) { + return LDAP_PROTOCOL_ERROR; + } + *scope = LDAP_X_SCOPE_EXACT; + bv.bv_val++; + } - return( LDAP_SUCCESS ); -} + bv.bv_val += strspn( bv.bv_val, " " ); + /* jump here in case no type specification was present + * and uir was not an URI... HEADS-UP: assuming EXACT */ +is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val); + + switch ( *scope ) { + case LDAP_X_SCOPE_EXACT: + case LDAP_X_SCOPE_CHILDREN: + case LDAP_X_SCOPE_SUBTREE: + case LDAP_X_SCOPE_ONELEVEL: + rc = dnNormalize( 0, NULL, NULL, &bv, nbase, op->o_tmpmemctx ); + if( rc != LDAP_SUCCESS ) { + *scope = -1; + } + break; + case LDAP_X_SCOPE_REGEX: + ber_dupbv_x( nbase, &bv, op->o_tmpmemctx ); + rc = LDAP_SUCCESS; + break; + default: + *scope = -1; + break; + } + return rc; + + } else if ( ( uri->bv_val[ 0 ] == 'u' || uri->bv_val[ 0 ] == 'U' ) + && ( uri->bv_val[ 1 ] == ':' + || uri->bv_val[ 1 ] == '/' + || uri->bv_val[ 1 ] == '.' ) ) + { + Connection c = *op->o_conn; + char buf[ SLAP_LDAPDN_MAXLEN ]; + struct berval id, + user = BER_BVNULL, + realm = BER_BVNULL, + mech = BER_BVNULL; + + if ( sizeof( buf ) <= uri->bv_len ) { + return LDAP_INVALID_SYNTAX; + } + id.bv_len = uri->bv_len; + id.bv_val = buf; + strncpy( buf, uri->bv_val, sizeof( buf ) ); -int slap_sasl_regexp_config( const char *match, const char *replace ) -{ -#ifdef HAVE_CYRUS_SASL - const char *c; - int rc, n; - SaslRegexp_t *reg; + rc = slap_parse_user( &id, &user, &realm, &mech ); + if ( rc != LDAP_SUCCESS ) { + return rc; + } - SaslRegexp = (SaslRegexp_t *) ch_realloc( (char *) SaslRegexp, - (nSaslRegexp + 1) * sizeof(SaslRegexp_t) ); - reg = &( SaslRegexp[nSaslRegexp] ); - reg->match = ch_strdup( match ); - reg->replace = ch_strdup( replace ); - dn_normalize( reg->match ); - dn_normalize( reg->replace ); + if ( mech.bv_val ) { + c.c_sasl_bind_mech = mech; + } else { + c.c_sasl_bind_mech.bv_val = "AUTHZ"; + c.c_sasl_bind_mech.bv_len = sizeof( "AUTHZ" ) - 1; + } + + rc = slap_sasl_getdn( &c, op, user.bv_val, user.bv_len, + realm.bv_val, nbase, SLAP_GETDN_AUTHZID ); - /* Precompile matching pattern */ - rc = regcomp( ®->workspace, reg->match, REG_EXTENDED|REG_ICASE ); - if ( rc ) { -#ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ERR, - "slap_sasl_regexp_config: \"%s\" could not be compiled.\n" - reg->match )); -#else - Debug( LDAP_DEBUG_ANY, - "SASL match pattern %s could not be compiled by regexp engine\n", - reg->match, 0, 0 ); -#endif + if ( rc == LDAP_SUCCESS ) { + *scope = LDAP_X_SCOPE_EXACT; + } - return( LDAP_OPERATIONS_ERROR ); + return rc; + } + + rc = ldap_url_parse( uri->bv_val, &ludp ); + if ( rc == LDAP_URL_ERR_BADSCHEME ) { + /* last chance: assume it's a(n exact) DN ... */ + bv.bv_val = uri->bv_val; + *scope = LDAP_X_SCOPE_EXACT; + goto is_dn; } + if ( rc != LDAP_URL_SUCCESS ) { + return LDAP_PROTOCOL_ERROR; + } + + if (( ludp->lud_host && *ludp->lud_host ) + || ludp->lud_attrs || ludp->lud_exts ) + { + /* host part must be empty */ + /* attrs and extensions parts must be empty */ + rc = LDAP_PROTOCOL_ERROR; + goto done; + } + + /* Grab the scope */ + *scope = ludp->lud_scope; + + /* Grab the filter */ + if ( ludp->lud_filter ) { + *filter = str2filter_x( op, ludp->lud_filter ); + if ( *filter == NULL ) { + rc = LDAP_PROTOCOL_ERROR; + goto done; + } + ber_str2bv( ludp->lud_filter, 0, 0, fstr ); + } + + /* Grab the searchbase */ + ber_str2bv( ludp->lud_dn, 0, 0, base ); + rc = dnNormalize( 0, NULL, NULL, base, nbase, op->o_tmpmemctx ); + +done: + if( rc != LDAP_SUCCESS ) { + if( *filter ) filter_free_x( op, *filter ); + base->bv_val = NULL; + base->bv_len = 0; + fstr->bv_val = NULL; + fstr->bv_len = 0; + } else { + /* Don't free these, return them to caller */ + ludp->lud_filter = NULL; + ludp->lud_dn = NULL; + } + + ldap_free_urldesc( ludp ); + return( rc ); +} + +static int slap_sasl_rx_off(char *rep, int *off) +{ + const char *c; + int n; + /* Precompile replace pattern. Find the $ placeholders */ - reg->offset[0] = -2; + off[0] = -2; n = 1; - for ( c = reg->replace; *c; c++ ) { - if ( *c == '\\' ) { + for ( c = rep; *c; c++ ) { + if ( *c == '\\' && c[1] ) { c++; continue; } if ( *c == '$' ) { if ( n == SASLREGEX_REPLACE ) { #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ERR, - "slap_sasl_regexp_config: \"%s\" has too many $n placeholders (max %d)\n", - reg->replace, SASLREGEX_REPLACE )); + LDAP_LOG( TRANSPORT, ERR, + "slap_sasl_rx_off: \"%s\" has too many $n " + "placeholders (max %d)\n", rep, SASLREGEX_REPLACE, 0 ); #else Debug( LDAP_DEBUG_ANY, - "SASL replace pattern %s has too many $n placeholders (max %d)\n", - reg->replace, SASLREGEX_REPLACE, 0 ); + "SASL replace pattern %s has too many $n " + "placeholders (max %d)\n", + rep, SASLREGEX_REPLACE, 0 ); #endif - return( LDAP_OPERATIONS_ERROR ); + return( LDAP_OTHER ); } - reg->offset[n] = c - reg->replace; + off[n] = c - rep; n++; } } /* Final placeholder, after the last $n */ - reg->offset[n] = c - reg->replace; + off[n] = c - rep; n++; - reg->offset[n] = -1; - - nSaslRegexp++; -#endif + off[n] = -1; return( LDAP_SUCCESS ); } - - - - -#ifdef HAVE_CYRUS_SASL - - - -/* Take the passed in SASL name and attempt to convert it into an - LDAP URI to find the matching LDAP entry, using the pattern matching - strings given in the saslregexp config file directive(s) */ -static -char *slap_sasl_regexp( char *saslname ) +int slap_sasl_regexp_config( const char *match, const char *replace ) { - char *uri=NULL; - int i, n, len, insert; + int rc; SaslRegexp_t *reg; + SaslRegexp = (SaslRegexp_t *) ch_realloc( (char *) SaslRegexp, + (nSaslRegexp + 1) * sizeof(SaslRegexp_t) ); + + reg = &SaslRegexp[nSaslRegexp]; + + reg->sr_match = ch_strdup( match ); + reg->sr_replace = ch_strdup( replace ); + /* Precompile matching pattern */ + rc = regcomp( ®->sr_workspace, reg->sr_match, REG_EXTENDED|REG_ICASE ); + if ( rc ) { #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_regexp: converting SASL name %s\n", saslname )); + LDAP_LOG( TRANSPORT, ERR, + "slap_sasl_regexp_config: \"%s\" could not be compiled.\n", + reg->sr_match, 0, 0 ); #else - Debug( LDAP_DEBUG_TRACE, "slap_sasl_regexp: converting SASL name %s\n", - saslname, 0, 0 ); + Debug( LDAP_DEBUG_ANY, + "SASL match pattern %s could not be compiled by regexp engine\n", + reg->sr_match, 0, 0 ); #endif - if (( saslname == NULL ) || ( nSaslRegexp == 0 )) - return( NULL ); - - /* Match the normalized SASL name to the saslregexp patterns */ - for( reg = SaslRegexp,i=0; iworkspace, saslname, SASLREGEX_REPLACE, - reg->strings, 0) == 0 ) - break; + return( LDAP_OTHER ); } - if( i >= nSaslRegexp ) - return( NULL ); + rc = slap_sasl_rx_off( reg->sr_replace, reg->sr_offset ); + if ( rc != LDAP_SUCCESS ) return rc; - /* - * The match pattern may have been of the form "a(b.*)c(d.*)e" and the - * replace pattern of the form "x$1y$2z". The returned string needs - * to replace the $1,$2 with the strings that matched (b.*) and (d.*) - */ + nSaslRegexp++; + return( LDAP_SUCCESS ); +} +/* Perform replacement on regexp matches */ +static void slap_sasl_rx_exp( + const char *rep, + const int *off, + regmatch_t *str, + const char *saslname, + struct berval *out, + void *ctx ) +{ + int i, n, len, insert; + /* Get the total length of the final URI */ n=1; len = 0; - while( reg->offset[n] >= 0 ) { + while( off[n] >= 0 ) { /* Len of next section from replacement string (x,y,z above) */ - len += reg->offset[n] - reg->offset[n-1] - 2; - if( reg->offset[n+1] < 0) + len += off[n] - off[n-1] - 2; + if( off[n+1] < 0) break; /* Len of string from saslname that matched next $i (b,d above) */ - i = reg->replace[ reg->offset[n] + 1 ] - '0'; - len += reg->strings[i].rm_eo - reg->strings[i].rm_so; + i = rep[ off[n] + 1 ] - '0'; + len += str[i].rm_eo - str[i].rm_so; n++; } - uri = ch_malloc( len + 1 ); + out->bv_val = sl_malloc( len + 1, ctx ); + out->bv_len = len; /* Fill in URI with replace string, replacing $i as we go */ n=1; insert = 0; - while( reg->offset[n] >= 0) { + while( off[n] >= 0) { /* Paste in next section from replacement string (x,y,z above) */ - len = reg->offset[n] - reg->offset[n-1] - 2; - strncpy( uri+insert, reg->replace + reg->offset[n-1] + 2, len); + len = off[n] - off[n-1] - 2; + strncpy( out->bv_val+insert, rep + off[n-1] + 2, len); insert += len; - if( reg->offset[n+1] < 0) + if( off[n+1] < 0) break; /* Paste in string from saslname that matched next $i (b,d above) */ - i = reg->replace[ reg->offset[n] + 1 ] - '0'; - len = reg->strings[i].rm_eo - reg->strings[i].rm_so; - strncpy( uri+insert, saslname + reg->strings[i].rm_so, len ); + i = rep[ off[n] + 1 ] - '0'; + len = str[i].rm_eo - str[i].rm_so; + strncpy( out->bv_val+insert, saslname + str[i].rm_so, len ); insert += len; n++; } - uri[insert] = '\0'; -#ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_regexp: converted SASL name to %s\n", uri )); -#else - Debug( LDAP_DEBUG_TRACE, - "slap_sasl_regexp: converted SASL name to %s\n", uri, 0, 0 ); -#endif - - return( uri ); + out->bv_val[insert] = '\0'; } +/* Take the passed in SASL name and attempt to convert it into an + LDAP URI to find the matching LDAP entry, using the pattern matching + strings given in the saslregexp config file directive(s) */ - - - -/* - * Given a SASL name (e.g. "UID=name,cn=REALM,cn=MECH,cn=AUTHZID") - * return the LDAP DN to which it matches. The SASL regexp rules in the config - * file turn the SASL name into an LDAP URI. If the URI is just a DN (or a - * search with scope=base), just return the URI (or its searchbase). Otherwise - * an internal search must be done, and if that search returns exactly one - * entry, return the DN of that one entry. - */ - -char *slap_sasl2dn( char *saslname ) +static int slap_sasl_regexp( struct berval *in, struct berval *out, + int flags, void *ctx ) { - char *uri=NULL, *searchbase=NULL, *DN=NULL; - int rc, scope; - Backend *be; - Filter *filter=NULL; - Connection *conn=NULL; - LDAP *client=NULL; - LDAPMessage *res=NULL, *msg; + char *saslname = in->bv_val; + SaslRegexp_t *reg; + regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */ + int i; + memset( out, 0, sizeof( *out ) ); #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl2dn: converting SASL name %s to DN.\n", saslname )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_regexp: converting SASL name %s\n", saslname, 0, 0 ); #else - Debug( LDAP_DEBUG_TRACE, - "==>slap_sasl2dn: Converting SASL name %s to a DN\n", saslname, 0,0 ); + Debug( LDAP_DEBUG_TRACE, "slap_sasl_regexp: converting SASL name %s\n", + saslname, 0, 0 ); #endif + if (( saslname == NULL ) || ( nSaslRegexp == 0 )) { + return( 0 ); + } - /* Convert the SASL name into an LDAP URI */ - uri = slap_sasl_regexp( saslname ); - if( uri == NULL ) - goto FINISHED; - - rc = slap_parseURI( uri, &searchbase, &scope, &filter ); - if( rc ) - goto FINISHED; - - /* Massive shortcut: search scope == base */ - if( scope == LDAP_SCOPE_BASE ) { - DN = ch_strdup( searchbase ); - goto FINISHED; + /* Match the normalized SASL name to the saslregexp patterns */ + for( reg = SaslRegexp,i=0; isr_workspace, saslname, SASLREGEX_REPLACE, + sr_strings, 0) == 0 ) + break; } - /* Must do an internal search */ + if( i >= nSaslRegexp ) return( 0 ); + + /* + * The match pattern may have been of the form "a(b.*)c(d.*)e" and the + * replace pattern of the form "x$1y$2z". The returned string needs + * to replace the $1,$2 with the strings that matched (b.*) and (d.*) + */ + slap_sasl_rx_exp( reg->sr_replace, reg->sr_offset, + sr_strings, saslname, out, ctx ); #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1, - "slap_sasl2dn: performing internal search (base=%s, scope=%s)\n", - searchbase, scope )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_regexp: converted SASL name to %s\n", + out->bv_len ? out->bv_val : "", 0, 0 ); #else Debug( LDAP_DEBUG_TRACE, - "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n", - searchbase, scope, 0 ); + "slap_sasl_regexp: converted SASL name to %s\n", + out->bv_len ? out->bv_val : "", 0, 0 ); #endif + return( 1 ); +} - be = select_backend( searchbase, 0 ); - if(( be == NULL ) || ( be->be_search == NULL)) - goto FINISHED; - searchbase = suffix_alias( be, searchbase ); - - rc = connection_internal_open( &conn, &client, saslname ); - if( rc != LDAP_SUCCESS ) - goto FINISHED; - - (*be->be_search)( be, conn, conn->c_ops, /*base=*/NULL, searchbase, - scope, /*deref=*/1, /*sizelimit=*/1, /*time=*/0, filter, /*fstr=*/NULL, - /*attrs=*/NULL, /*attrsonly=*/0 ); +/* This callback actually does some work...*/ +static int sasl_sc_sasl2dn( Operation *o, SlapReply *rs ) +{ + struct berval *ndn = o->o_callback->sc_private; + if (rs->sr_type != REP_SEARCH) return 0; - /* Read the client side of the internal search */ - rc = ldap_result( client, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res ); - if( rc == -1 ) - goto FINISHED; + /* We only want to be called once */ + if( ndn->bv_val ) { + o->o_tmpfree(ndn->bv_val, o->o_tmpmemctx); + ndn->bv_val = NULL; + ndn->bv_len = 0; - /* Make sure exactly one entry was returned */ - rc = ldap_count_entries( client, res ); #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1, - "slap_sasl2dn: search DN returned %d entries\n", rc )); + LDAP_LOG( TRANSPORT, DETAIL1, + "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 ); #else - Debug( LDAP_DEBUG_TRACE, - "slap_sasl2dn: search DN returned %d entries\n", rc,0,0 ); + Debug( LDAP_DEBUG_TRACE, + "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 ); #endif + return -1; + } - if( rc != 1 ) - goto FINISHED; + ber_dupbv_x(ndn, &rs->sr_entry->e_nname, o->o_tmpmemctx); + return 0; +} - msg = ldap_first_entry( client, res ); - DN = ldap_get_dn( client, msg ); -FINISHED: - if( searchbase ) ch_free( searchbase ); - if( filter ) filter_free( filter ); - if( uri ) ch_free( uri ); - if( conn ) connection_internal_close( conn ); - if( res ) ldap_msgfree( res ); - if( client ) ldap_unbind( client ); - if( DN ) dn_normalize( DN ); -#ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl2dn: Converted SASL name to %s\n", DN ? DN : "" )); -#else - Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n", - DN ? DN : "", 0, 0 ); -#endif - - return( DN ); -} +typedef struct smatch_info { + struct berval *dn; + int match; +} smatch_info; +static int sasl_sc_smatch( Operation *o, SlapReply *rs ) +{ + smatch_info *sm = o->o_callback->sc_private; + if (rs->sr_type != REP_SEARCH) return 0; + if (dn_match(sm->dn, &rs->sr_entry->e_nname)) { + sm->match = 1; + return -1; /* short-circuit the search */ + } + return 1; +} /* * Map a SASL regexp rule to a DN. If the rule is just a DN or a scope=base @@ -415,105 +608,169 @@ FINISHED: */ static -int slap_sasl_match( char *rule, char *assertDN, char *authc ) +int slap_sasl_match( Operation *opx, struct berval *rule, + struct berval *assertDN, struct berval *authc ) { - char *searchbase=NULL, *dn=NULL; - int rc, scope; - Backend *be; - Filter *filter=NULL; - Connection *conn=NULL; - LDAP *client=NULL; - LDAPMessage *res=NULL, *msg; + int rc; regex_t reg; - + smatch_info sm; + slap_callback cb = { NULL, sasl_sc_smatch, NULL, NULL }; + Operation op = {0}; + SlapReply rs = {REP_RESULT}; #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_match: comparing DN %s to rule %s\n", assertDN, rule ); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_match: comparing DN %s to rule %s\n", + assertDN->bv_val, rule->bv_val,0 ); #else Debug( LDAP_DEBUG_TRACE, - "===>slap_sasl_match: comparing DN %s to rule %s\n", assertDN, rule, 0 ); + "===>slap_sasl_match: comparing DN %s to rule %s\n", + assertDN->bv_val, rule->bv_val, 0 ); #endif + rc = slap_parseURI( opx, rule, &op.o_req_dn, + &op.o_req_ndn, &op.oq_search.rs_scope, &op.oq_search.rs_filter, + &op.ors_filterstr ); + if( rc != LDAP_SUCCESS ) goto CONCLUDED; - rc = slap_parseURI( rule, &searchbase, &scope, &filter ); - if( rc != LDAP_SUCCESS ) + switch ( op.oq_search.rs_scope ) { + case LDAP_X_SCOPE_EXACT: +exact_match: + if ( dn_match( &op.o_req_ndn, assertDN ) ) { + rc = LDAP_SUCCESS; + } else { + rc = LDAP_INAPPROPRIATE_AUTH; + } + goto CONCLUDED; + + case LDAP_X_SCOPE_CHILDREN: + case LDAP_X_SCOPE_SUBTREE: + case LDAP_X_SCOPE_ONELEVEL: + { + int d = assertDN->bv_len - op.o_req_ndn.bv_len; + + rc = LDAP_INAPPROPRIATE_AUTH; + + if ( d == 0 && op.oq_search.rs_scope == LDAP_X_SCOPE_SUBTREE ) { + goto exact_match; + + } else if ( d > 0 ) { + struct berval bv; + + bv.bv_len = op.o_req_ndn.bv_len; + bv.bv_val = assertDN->bv_val + d; + + if ( bv.bv_val[ -1 ] == ',' && dn_match( &op.o_req_ndn, &bv ) ) { + switch ( op.oq_search.rs_scope ) { + case LDAP_X_SCOPE_SUBTREE: + case LDAP_X_SCOPE_CHILDREN: + rc = LDAP_SUCCESS; + break; + + case LDAP_X_SCOPE_ONELEVEL: + { + struct berval pdn; + + dnParent( assertDN, &pdn ); + /* the common portion of the DN + * already matches, so only check + * if parent DN of assertedDN + * is all the pattern */ + if ( pdn.bv_len == op.o_req_ndn.bv_len ) { + rc = LDAP_SUCCESS; + } + break; + } + default: + /* at present, impossible */ + assert( 0 ); + } + } + } goto CONCLUDED; + } - /* Massive shortcut: search scope == base */ - if( scope == LDAP_SCOPE_BASE ) { - dn_normalize( searchbase ); - rc = regcomp(®, searchbase, REG_EXTENDED|REG_ICASE|REG_NOSUB); + case LDAP_X_SCOPE_REGEX: + rc = regcomp(®, op.o_req_ndn.bv_val, + REG_EXTENDED|REG_ICASE|REG_NOSUB); if ( rc == 0 ) { - rc = regexec(®, assertDN, 0, NULL, 0); + rc = regexec(®, assertDN->bv_val, 0, NULL, 0); regfree( ® ); } - if ( rc == 0 ) + if ( rc == 0 ) { rc = LDAP_SUCCESS; - else + } else { rc = LDAP_INAPPROPRIATE_AUTH; + } goto CONCLUDED; + + default: + break; } /* Must run an internal search. */ + if ( op.oq_search.rs_filter == NULL ) { + rc = LDAP_FILTER_ERROR; + goto CONCLUDED; + } #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1, - "slap_sasl_match: performing internal search (base=%s, scope=%d)\n", - searchbase, scope )); + LDAP_LOG( TRANSPORT, DETAIL1, + "slap_sasl_match: performing internal search (base=%s, scope=%d)\n", + op.o_req_ndn.bv_val, op.oq_search.rs_scope, 0 ); #else Debug( LDAP_DEBUG_TRACE, "slap_sasl_match: performing internal search (base=%s, scope=%d)\n", - searchbase, scope, 0 ); + op.o_req_ndn.bv_val, op.oq_search.rs_scope, 0 ); #endif - - be = select_backend( searchbase, 0 ); - if(( be == NULL ) || ( be->be_search == NULL)) { + op.o_bd = select_backend( &op.o_req_ndn, 0, 1 ); + if(( op.o_bd == NULL ) || ( op.o_bd->be_search == NULL)) { rc = LDAP_INAPPROPRIATE_AUTH; goto CONCLUDED; } - searchbase = suffix_alias( be, searchbase ); - - /* Make an internal connection on which to run the search */ - rc = connection_internal_open( &conn, &client, authc ); - if( rc != LDAP_SUCCESS ) - goto CONCLUDED; - - (*be->be_search)( be, conn, conn->c_ops, /*base=*/NULL, searchbase, - scope, /*deref=*/1, /*sizelimit=*/0, /*time=*/0, filter, /*fstr=*/NULL, - /*attrs=*/NULL, /*attrsonly=*/0 ); + sm.dn = assertDN; + sm.match = 0; + cb.sc_private = &sm; + + op.o_tag = LDAP_REQ_SEARCH; + op.o_protocol = LDAP_VERSION3; + op.o_ndn = *authc; + op.o_callback = &cb; + op.o_time = slap_get_time(); + op.o_do_not_cache = 1; + op.o_is_auth_check = 1; + op.o_threadctx = opx->o_threadctx; + op.o_tmpmemctx = opx->o_tmpmemctx; + op.o_tmpmfuncs = opx->o_tmpmfuncs; +#ifdef LDAP_SLAPI + op.o_pb = opx->o_pb; +#endif + op.o_conn = opx->o_conn; + op.o_connid = opx->o_connid; + op.o_req_dn = op.o_req_ndn; + op.oq_search.rs_slimit = 1; + op.oq_search.rs_tlimit = SLAP_NO_LIMIT; + op.o_sync_slog_size = -1; - /* On the client side of the internal search, read the results. Check - if the assertDN matches any of the DN's returned by the search */ - rc = ldap_result( client, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res ); - if( rc == -1 ) - goto CONCLUDED; + op.o_bd->be_search( &op, &rs ); - for( msg=ldap_first_entry( client, res ); - msg; - msg=ldap_next_entry( client, msg ) ) { - dn = ldap_get_dn( client, msg ); - dn_normalize( dn ); - rc = strcmp( dn, assertDN ); - ch_free( dn ); - if( rc == 0 ) { - rc = LDAP_SUCCESS; - goto CONCLUDED; - } + if (sm.match) { + rc = LDAP_SUCCESS; + } else { + rc = LDAP_INAPPROPRIATE_AUTH; } - rc = LDAP_INAPPROPRIATE_AUTH; CONCLUDED: - if( searchbase ) ch_free( searchbase ); - if( filter ) filter_free( filter ); - if( conn ) connection_internal_close( conn ); - if( res ) ldap_msgfree( res ); - if( client ) ldap_unbind( client ); + if( op.o_req_dn.bv_val && op.o_req_dn.bv_val != op.o_req_ndn.bv_val ) ch_free( op.o_req_dn.bv_val ); + if( op.o_req_ndn.bv_val ) sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx ); + if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter ); + if( op.ors_filterstr.bv_val ) ch_free( op.ors_filterstr.bv_val ); + #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_match: comparison returned %d\n", rc )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_match: comparison returned %d\n", rc, 0, 0 ); #else Debug( LDAP_DEBUG_TRACE, "<===slap_sasl_match: comparison returned %d\n", rc, 0, 0); @@ -523,84 +780,206 @@ CONCLUDED: } - - - /* * This function answers the question, "Can this ID authorize to that ID?", * based on authorization rules. The rules are stored in the *searchDN, in the * attribute named by *attr. If any of those rules map to the *assertDN, the * authorization is approved. * - * DN's passed in should have a dn: prefix + * The DNs should not have the dn: prefix */ - static int -slap_sasl_check_authz(char *searchDN, char *assertDN, char *attr, char *authc) +slap_sasl_check_authz( Operation *op, + struct berval *searchDN, + struct berval *assertDN, + AttributeDescription *ad, + struct berval *authc ) { - const char *errmsg; int i, rc; - struct berval **vals=NULL; - AttributeDescription *ad=NULL; - + BerVarray vals=NULL; #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_check_authz: does %s match %s rule in %s?\n", - assertDN, attr, searchDN )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_check_authz: does %s match %s rule in %s?\n", + assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val); #else Debug( LDAP_DEBUG_TRACE, "==>slap_sasl_check_authz: does %s match %s rule in %s?\n", - assertDN, attr, searchDN); + assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val); #endif - rc = slap_str2ad( attr, &ad, &errmsg ); - if( rc != LDAP_SUCCESS ) - goto COMPLETE; - - rc = backend_attribute( NULL, NULL, NULL, NULL, searchDN+3, ad, &vals ); - if( rc != LDAP_SUCCESS ) - goto COMPLETE; + rc = backend_attribute( op, NULL, + searchDN, ad, &vals ); + if( rc != LDAP_SUCCESS ) goto COMPLETE; /* Check if the *assertDN matches any **vals */ - for( i=0; vals[i] != NULL; i++ ) { - rc = slap_sasl_match( vals[i]->bv_val, assertDN+3, authc ); - if ( rc == LDAP_SUCCESS ) - goto COMPLETE; + if( vals != NULL ) { + for( i=0; vals[i].bv_val != NULL; i++ ) { + rc = slap_sasl_match( op, &vals[i], assertDN, authc ); + if ( rc == LDAP_SUCCESS ) goto COMPLETE; + } } rc = LDAP_INAPPROPRIATE_AUTH; COMPLETE: - if( vals ) ber_bvecfree( vals ); - if( ad ) ad_free( ad, 1 ); + if( vals ) ber_bvarray_free_x( vals, op->o_tmpmemctx ); #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_check_authz: %s check returning %s\n", attr, rc )); + LDAP_LOG( TRANSPORT, RESULTS, + "slap_sasl_check_authz: %s check returning %s\n", + ad->ad_cname.bv_val, rc, 0 ); #else Debug( LDAP_DEBUG_TRACE, - "<==slap_sasl_check_authz: %s check returning %d\n", attr, rc, 0); + "<==slap_sasl_check_authz: %s check returning %d\n", + ad->ad_cname.bv_val, rc, 0); #endif return( rc ); } +/* + * Given a SASL name (e.g. "UID=name,cn=REALM,cn=MECH,cn=AUTH") + * return the LDAP DN to which it matches. The SASL regexp rules in the config + * file turn the SASL name into an LDAP URI. If the URI is just a DN (or a + * search with scope=base), just return the URI (or its searchbase). Otherwise + * an internal search must be done, and if that search returns exactly one + * entry, return the DN of that one entry. + */ +void slap_sasl2dn( Operation *opx, + struct berval *saslname, struct berval *sasldn, int flags ) +{ + int rc; + slap_callback cb = { NULL, sasl_sc_sasl2dn, NULL, NULL }; + Operation op = {0}; + SlapReply rs = {REP_RESULT}; + struct berval regout = BER_BVNULL; + +#ifdef NEW_LOGGING + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl2dn: converting SASL name %s to DN.\n", + saslname->bv_val, 0, 0 ); +#else + Debug( LDAP_DEBUG_TRACE, "==>slap_sasl2dn: " + "converting SASL name %s to a DN\n", + saslname->bv_val, 0,0 ); +#endif + sasldn->bv_val = NULL; + sasldn->bv_len = 0; + cb.sc_private = sasldn; -#endif /* HAVE_CYRUS_SASL */ + /* Convert the SASL name into a minimal URI */ + if( !slap_sasl_regexp( saslname, ®out, flags, opx->o_tmpmemctx ) ) { + goto FINISHED; + } + rc = slap_parseURI( opx, ®out, &op.o_req_dn, + &op.o_req_ndn, &op.oq_search.rs_scope, &op.oq_search.rs_filter, + &op.ors_filterstr ); + if( regout.bv_val ) sl_free( regout.bv_val, opx->o_tmpmemctx ); + if( rc != LDAP_SUCCESS ) { + goto FINISHED; + } + /* Must do an internal search */ + op.o_bd = select_backend( &op.o_req_ndn, 0, 1 ); + + switch ( op.oq_search.rs_scope ) { + case LDAP_X_SCOPE_EXACT: + *sasldn = op.o_req_ndn; + op.o_req_ndn.bv_len = 0; + op.o_req_ndn.bv_val = NULL; + /* intentionally continue to next case */ + + case LDAP_X_SCOPE_REGEX: + case LDAP_X_SCOPE_SUBTREE: + case LDAP_X_SCOPE_CHILDREN: + case LDAP_X_SCOPE_ONELEVEL: + /* correctly parsed, but illegal */ + goto FINISHED; + case LDAP_SCOPE_BASE: + case LDAP_SCOPE_ONELEVEL: + case LDAP_SCOPE_SUBTREE: +#ifdef LDAP_SCOPE_SUBORDINATE + case LDAP_SCOPE_SUBORDINATE: +#endif + /* do a search */ + break; + + default: + /* catch unhandled cases (there shouldn't be) */ + assert( 0 ); + } + +#ifdef NEW_LOGGING + LDAP_LOG( TRANSPORT, DETAIL1, + "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n", + op.o_req_ndn.bv_val, op.oq_search.rs_scope, 0 ); +#else + Debug( LDAP_DEBUG_TRACE, + "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n", + op.o_req_ndn.bv_val, op.oq_search.rs_scope, 0 ); +#endif + + if(( op.o_bd == NULL ) || ( op.o_bd->be_search == NULL)) { + goto FINISHED; + } + + op.o_conn = opx->o_conn; + op.o_connid = opx->o_connid; + op.o_tag = LDAP_REQ_SEARCH; + op.o_protocol = LDAP_VERSION3; + op.o_ndn = opx->o_conn->c_ndn; + op.o_callback = &cb; + op.o_time = slap_get_time(); + op.o_do_not_cache = 1; + op.o_is_auth_check = 1; + op.o_threadctx = opx->o_threadctx; + op.o_tmpmemctx = opx->o_tmpmemctx; + op.o_tmpmfuncs = opx->o_tmpmfuncs; +#ifdef LDAP_SLAPI + op.o_pb = opx->o_pb; +#endif + op.oq_search.rs_deref = LDAP_DEREF_NEVER; + op.oq_search.rs_slimit = 1; + op.oq_search.rs_tlimit = SLAP_NO_LIMIT; + op.oq_search.rs_attrsonly = 1; + op.o_req_dn = op.o_req_ndn; + + op.o_bd->be_search( &op, &rs ); + +FINISHED: + if( sasldn->bv_len ) { + opx->o_conn->c_authz_backend = op.o_bd; + } + if( op.o_req_dn.bv_len ) ch_free( op.o_req_dn.bv_val ); + if( op.o_req_ndn.bv_len ) sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx ); + if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter ); + if( op.ors_filterstr.bv_len ) ch_free( op.ors_filterstr.bv_val ); + +#ifdef NEW_LOGGING + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl2dn: Converted SASL name to %s\n", + sasldn->bv_len ? sasldn->bv_val : "", 0, 0 ); +#else + Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n", + sasldn->bv_len ? sasldn->bv_val : "", 0, 0 ); +#endif + + return; +} /* Check if a bind can SASL authorize to another identity. - Accepts authorization DN's with "dn:" prefix */ + * The DNs should not have the dn: prefix + */ -int slap_sasl_authorized( char *authcDN, char *authzDN ) +int slap_sasl_authorized( Operation *op, + struct berval *authcDN, struct berval *authzDN ) { - int rc; + int rc = LDAP_INAPPROPRIATE_AUTH; -#ifdef HAVE_CYRUS_SASL /* User binding as anonymous */ if ( authzDN == NULL ) { rc = LDAP_SUCCESS; @@ -608,41 +987,56 @@ int slap_sasl_authorized( char *authcDN, char *authzDN ) } #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_authorized: can %s become %s?\n", authcDN, authzDN )); + LDAP_LOG( TRANSPORT, ENTRY, + "slap_sasl_authorized: can %s become %s?\n", + authcDN->bv_val, authzDN->bv_val, 0 ); #else Debug( LDAP_DEBUG_TRACE, - "==>slap_sasl_authorized: can %s become %s?\n", authcDN, authzDN, 0 ); + "==>slap_sasl_authorized: can %s become %s?\n", + authcDN->bv_val, authzDN->bv_val, 0 ); #endif - /* If person is authorizing to self, succeed */ - if ( !strcmp( authcDN, authzDN ) ) { + if ( dn_match( authcDN, authzDN ) ) { rc = LDAP_SUCCESS; goto DONE; } - /* Check source rules */ - rc = slap_sasl_check_authz( authcDN, authzDN, SASL_AUTHZ_SOURCE_ATTR, - authcDN ); - if( rc == LDAP_SUCCESS ) + /* Allow the manager to authorize as any DN. */ + if( op->o_conn->c_authz_backend && + be_isroot_dn( op->o_conn->c_authz_backend, authcDN )) + { + rc = LDAP_SUCCESS; goto DONE; + } + + /* Check source rules */ + if( authz_policy & SASL_AUTHZ_TO ) { + rc = slap_sasl_check_authz( op, authcDN, authzDN, + slap_schema.si_ad_saslAuthzTo, authcDN ); + if( rc == LDAP_SUCCESS && !(authz_policy & SASL_AUTHZ_AND) ) { + goto DONE; + } + } /* Check destination rules */ - rc = slap_sasl_check_authz( authzDN, authcDN, SASL_AUTHZ_DEST_ATTR, - authcDN ); - if( rc == LDAP_SUCCESS ) - goto DONE; + if( authz_policy & SASL_AUTHZ_FROM ) { + rc = slap_sasl_check_authz( op, authzDN, authcDN, + slap_schema.si_ad_saslAuthzFrom, authcDN ); + if( rc == LDAP_SUCCESS ) { + goto DONE; + } + } -#endif rc = LDAP_INAPPROPRIATE_AUTH; DONE: + #ifdef NEW_LOGGING - LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY, - "slap_sasl_authorized: return %s\n", rc )); + LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_authorized: return %d\n", rc,0,0 ); #else - Debug( LDAP_DEBUG_TRACE, "<== slap_sasl_authorized: return %d\n",rc,0,0 ); + Debug( LDAP_DEBUG_TRACE, + "<== slap_sasl_authorized: return %d\n", rc, 0, 0 ); #endif return( rc );