+/*
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
/*
* Copyright (c) 2000, Mark Adamson, Carnegie Mellon. All rights reserved.
* This software is not subject to any license of Carnegie Mellon University.
#include "slap.h"
-#ifdef HAVE_CYRUS_SASL
#include <limits.h>
-#include <sasl.h>
+
#include <ldap_pvt.h>
-#endif
+
+#define SASLREGEX_REPLACE 10
+
+typedef struct sasl_regexp {
+ char *sr_match; /* regexp match pattern */
+ char *sr_replace; /* regexp replace pattern */
+ regex_t sr_workspace; /* workspace for regexp engine */
+ regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
+ int sr_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
+} SaslRegexp_t;
+
+static int nSaslRegexp = 0;
+static SaslRegexp_t *SaslRegexp = NULL;
+
+/* What SASL proxy authorization policies are allowed? */
+#define SASL_AUTHZ_NONE 0
+#define SASL_AUTHZ_FROM 1
+#define SASL_AUTHZ_TO 2
+
+static int authz_policy = SASL_AUTHZ_NONE;
+
+int slap_sasl_setpolicy( const char *arg )
+{
+ 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 ) {
+ authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO;
+ } else {
+ rc = LDAP_OTHER;
+ }
+ return rc;
+}
/* URI format: ldap://<host>/<base>[?[<attrs>][?[<scope>][?[<filter>]]]] */
-static int slap_parseURI( char *uri,
+static int slap_parseURI( Operation *op, struct berval *uri,
struct berval *searchbase, int *scope, Filter **filter )
{
- char *start, *end;
struct berval bv;
int rc;
+ LDAPURLDesc *ludp;
-
- assert( uri != NULL );
+ assert( uri != NULL && uri->bv_val != NULL );
searchbase->bv_val = NULL;
searchbase->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
/* If it does not look like a URI, assume it is a DN */
- if( !strncasecmp( uri, "dn:", sizeof("dn:")-1 ) ) {
- uri += sizeof("dn:")-1;
- uri += strspn( uri, " " );
- bv.bv_val = uri;
- /* FIXME: if dnNormalize actually uses input bv_len we
- * will have to make this right.
- */
-is_dn: bv.bv_len = 1;
- rc = dnNormalize2( NULL, &bv, searchbase );
- if (rc == LDAP_SUCCESS) {
+ if( !strncasecmp( uri->bv_val, "dn:", sizeof("dn:")-1 ) ) {
+ bv.bv_val = uri->bv_val + sizeof("dn:")-1;
+ bv.bv_val += strspn( bv.bv_val, " " );
+
+is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
+
+ rc = dnNormalize2( NULL, &bv, searchbase, op->o_tmpmemctx );
+ if( rc == LDAP_SUCCESS ) {
*scope = LDAP_SCOPE_BASE;
}
return( rc );
}
- /* FIXME: should use ldap_url_parse() */
- if( strncasecmp( uri, "ldap://", sizeof("ldap://")-1 ) ) {
- bv.bv_val = uri;
+ rc = ldap_url_parse( uri->bv_val, &ludp );
+ if ( rc == LDAP_URL_ERR_BADSCHEME ) {
+ bv.bv_val = uri->bv_val;
goto is_dn;
}
- end = strchr( uri + (sizeof("ldap://")-1), '/' );
- if ( end == NULL )
- return( LDAP_PROTOCOL_ERROR );
-
- /* could check the hostname here */
-
- /* Grab the searchbase */
- start = end+1;
- end = strchr( start, '?' );
- bv.bv_val = start;
- if( end == NULL ) {
- bv.bv_len = 1;
- return dnNormalize2( NULL, &bv, searchbase );
+ if ( rc != LDAP_URL_SUCCESS ) {
+ return LDAP_PROTOCOL_ERROR;
}
- *end = '\0';
- bv.bv_len = end - start;
- rc = dnNormalize2( NULL, &bv, searchbase );
- *end = '?';
- if (rc != LDAP_SUCCESS)
- return( rc );
- /* Skip the attrs */
- start = end+1;
- end = strchr( start, '?' );
- if( end == NULL ) {
- return( LDAP_SUCCESS );
+ if (( ludp->lud_host && *ludp->lud_host )
+ || ludp->lud_attrs || ludp->lud_exts )
+ {
+ /* host part should be empty */
+ /* attrs and extensions parts should be empty */
+ return LDAP_PROTOCOL_ERROR;
}
/* Grab the scope */
- start = end+1;
- if( !strncasecmp( start, "base?", sizeof("base?")-1 )) {
- *scope = LDAP_SCOPE_BASE;
- start += sizeof("base?")-1;
- }
- else if( !strncasecmp( start, "one?", sizeof("one?")-1 )) {
- *scope = LDAP_SCOPE_ONELEVEL;
- start += sizeof("one?")-1;
- }
- else if( !strncasecmp( start, "sub?", sizeof("sub?")-1 )) {
- *scope = LDAP_SCOPE_SUBTREE;
- start += sizeof("sub?")-1;
- }
- else {
- free( searchbase->bv_val );
- searchbase->bv_val = NULL;
- return( LDAP_PROTOCOL_ERROR );
- }
+ *scope = ludp->lud_scope;
/* Grab the filter */
- *filter = str2filter( start );
+ if ( ludp->lud_filter ) {
+ *filter = str2filter_x( op, ludp->lud_filter );
+ if ( *filter == NULL ) {
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+ }
+ }
- return( LDAP_SUCCESS );
-}
+ /* Grab the searchbase */
+ bv.bv_val = ludp->lud_dn;
+ bv.bv_len = strlen( bv.bv_val );
+ rc = dnNormalize2( NULL, &bv, searchbase, op->o_tmpmemctx );
+done:
+ if( rc != LDAP_SUCCESS ) {
+ if( *filter ) filter_free_x( op, *filter );
+ }
-int slap_sasl_regexp_config( const char *match, const char *replace )
+ ldap_free_urldesc( ludp );
+ return( rc );
+}
+
+static int slap_sasl_rx_off(char *rep, int *off)
{
-#ifdef HAVE_CYRUS_SASL
const char *c;
- int rc, n;
- SaslRegexp_t *reg;
-
- 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 );
-
- /* 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
-
- return( LDAP_OPERATIONS_ERROR );
- }
+ int n;
/* Precompile replace pattern. Find the $<n> placeholders */
- reg->offset[0] = -2;
+ off[0] = -2;
n = 1;
- for ( c = reg->replace; *c; c++ ) {
- if ( *c == '\\' ) {
+ for ( c = rep; *c; c++ ) {
+ if ( *c == '\\' && c[1] ) {
c++;
continue;
}
if ( *c == '$' ) {
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; i<nSaslRegexp; i++,reg++ ) {
- if ( regexec( ®->workspace, 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 );
-}
-
-/* Two empty callback functions to avoid sending results */
-static void sasl_sc_r( Connection *conn, Operation *o, ber_tag_t tag,
- ber_int_t msgid, ber_int_t err, const char *matched,
- const char *text, BVarray ref, const char *resoid,
- struct berval *resdata, struct berval *sasldata, LDAPControl **c)
-{
+ out->bv_val[insert] = '\0';
}
-static void sasl_sc_s( Connection *conn, Operation *o, ber_int_t err,
- const char *matched, const char *text, BVarray refs, LDAPControl **c,
- int nentries)
-{
-}
+/* 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) */
-/* This callback actually does some work...*/
-static int sasl_sc_sasl2dn( BackendDB *be, Connection *conn, Operation *o,
- Entry *e, AttributeName *an, int ao, LDAPControl **c)
+static int slap_sasl_regexp( struct berval *in, struct berval *out, void *ctx )
{
- struct berval *ndn = o->o_callback->sc_private;
-
- /* We only want to be called once */
- if (ndn->bv_val) {
- free(ndn->bv_val);
- ndn->bv_val = NULL;
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
- "slap_sasl2dn: search DN returned more than 1 entry\n" ));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "slap_sasl2dn: search DN returned more than 1 entry\n", 0,0,0 );
-#endif
- return -1;
- } else {
- ber_dupbv(ndn, &e->e_nname);
- return 0;
- }
-}
-
-/*
- * 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.
- */
+ char *saslname = in->bv_val;
+ SaslRegexp_t *reg;
+ int i;
-char *slap_sasl2dn( char *saslname )
-{
- char *uri=NULL;
- struct berval searchbase = {0, NULL};
- struct berval dn = {0, NULL};
- int rc, scope;
- Backend *be;
- Filter *filter=NULL;
- slap_callback cb = {sasl_sc_r, sasl_sc_s, sasl_sc_sasl2dn, &dn};
- Operation op = {0};
+ 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
- /* 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;
+ if (( saslname == NULL ) || ( nSaslRegexp == 0 )) {
+ return( 0 );
}
- /* Massive shortcut: search scope == base */
- if( scope == LDAP_SCOPE_BASE ) {
- dn = searchbase;
- searchbase.bv_len = 0;
- searchbase.bv_val = NULL;
- goto FINISHED;
+ /* Match the normalized SASL name to the saslregexp patterns */
+ for( reg = SaslRegexp,i=0; i<nSaslRegexp; i++,reg++ ) {
+ if ( regexec( ®->sr_workspace, saslname, SASLREGEX_REPLACE,
+ reg->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,
+ reg->sr_strings, saslname, out, ctx );
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
- "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, 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.bv_val, scope, 0 );
+ "slap_sasl_regexp: converted SASL name to %s\n",
+ out->bv_len ? out->bv_val : "", 0, 0 );
#endif
- be = select_backend( &searchbase, 0, 1 );
- if(( be == NULL ) || ( be->be_search == NULL))
- goto FINISHED;
- suffix_alias( be, &searchbase );
+ return( 1 );
+}
- ldap_pvt_thread_mutex_init( &op.o_abandonmutex );
- op.o_tag = LDAP_REQ_SEARCH;
- op.o_protocol = LDAP_VERSION3;
- op.o_ndn.bv_val = saslname;
- op.o_ndn.bv_len = strlen(saslname);
- op.o_callback = &cb;
- op.o_time = slap_get_time();
+/* This callback actually does some work...*/
+static int sasl_sc_sasl2dn( Operation *o, SlapReply *rs )
+{
+ struct berval *ndn = o->o_callback->sc_private;
- (*be->be_search)( be, /*conn*/NULL, &op, /*base*/NULL, &searchbase,
- scope, /*deref=*/1, /*sizelimit=*/1, /*time=*/0, filter, /*fstr=*/NULL,
- /*attrs=*/NULL, /*attrsonly=*/0 );
-
- ldap_pvt_thread_mutex_destroy( &op.o_abandonmutex );
+ if (rs->sr_type != REP_SEARCH) return 0;
-FINISHED:
- if( searchbase.bv_len ) ch_free( searchbase.bv_val );
- if( filter ) filter_free( filter );
- if( uri ) ch_free( uri );
+ /* We only want to be called once */
+ if( ndn->bv_val ) {
+ o->o_tmpfree(ndn->bv_val, o->o_tmpmemctx);
+ ndn->bv_val = NULL;
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl2dn: Converted SASL name to %s\n",
- dn.bv_len ? dn.bv_val : "<nothing>" ));
+ LDAP_LOG( TRANSPORT, DETAIL1,
+ "slap_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
#else
- Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n",
- dn.bv_len ? dn.bv_val : "<nothing>", 0, 0 );
+ Debug( LDAP_DEBUG_TRACE,
+ "slap_sasl2dn: search DN returned more than 1 entry\n", 0,0,0 );
#endif
+ return -1;
+ }
- return( dn.bv_val );
+ ber_dupbv_x(ndn, &rs->sr_entry->e_nname, o->o_tmpmemctx);
+ return 0;
}
+
typedef struct smatch_info {
struct berval *dn;
int match;
} smatch_info;
-static int sasl_sc_smatch( BackendDB *be, Connection *conn, Operation *o,
- Entry *e, AttributeName *an, int ao, LDAPControl **c)
+static int sasl_sc_smatch( Operation *o, SlapReply *rs )
{
smatch_info *sm = o->o_callback->sc_private;
- if (dn_match(sm->dn, &e->e_nname)) {
+ 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 */
- } else {
- return 1;
}
+
+ return 1;
}
/*
*/
static
-int slap_sasl_match( char *rule, struct berval *assertDN, char *authc )
+int slap_sasl_match(Operation *opx, struct berval *rule, struct berval *assertDN, struct berval *authc )
{
- struct berval searchbase = {0, NULL};
- int rc, scope;
- Backend *be;
- Filter *filter=NULL;
+ int rc;
regex_t reg;
smatch_info sm;
- slap_callback cb = {sasl_sc_r, sasl_sc_s, sasl_sc_smatch, &sm};
+ slap_callback cb = { sasl_sc_smatch };
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( rule, &searchbase, &scope, &filter );
- if( rc != LDAP_SUCCESS )
- goto CONCLUDED;
+ rc = slap_parseURI( opx, rule, &op.o_req_ndn, &op.oq_search.rs_scope, &op.oq_search.rs_filter );
+ if( rc != LDAP_SUCCESS ) goto CONCLUDED;
/* Massive shortcut: search scope == base */
- if( scope == LDAP_SCOPE_BASE ) {
- rc = regcomp(®, searchbase.bv_val,
+ if( op.oq_search.rs_scope == LDAP_SCOPE_BASE ) {
+ rc = regcomp(®, op.o_req_ndn.bv_val,
REG_EXTENDED|REG_ICASE|REG_NOSUB);
if ( rc == 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;
}
/* Must run an internal search. */
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
+ LDAP_LOG( TRANSPORT, DETAIL1,
"slap_sasl_match: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, scope ));
+ 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.bv_val, scope, 0 );
+ op.o_req_ndn.bv_val, op.oq_search.rs_scope, 0 );
#endif
- be = select_backend( &searchbase, 0, 1 );
- 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;
}
- suffix_alias( be, &searchbase );
sm.dn = assertDN;
sm.match = 0;
+ cb.sc_private = &sm;
- ldap_pvt_thread_mutex_init( &op.o_abandonmutex );
op.o_tag = LDAP_REQ_SEARCH;
op.o_protocol = LDAP_VERSION3;
- op.o_ndn.bv_val = authc;
- op.o_ndn.bv_len = strlen(authc);
+ 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;
+ op.o_conn = opx->o_conn;
+ op.o_connid = opx->o_connid;
- (*be->be_search)( be, /*conn=*/NULL, &op, /*base=*/NULL, &searchbase,
- scope, /*deref=*/1, /*sizelimit=*/0, /*time=*/0, filter, /*fstr=*/NULL,
- /*attrs=*/NULL, /*attrsonly=*/0 );
+ op.o_bd->be_search( &op, &rs );
- if (sm.match)
+ if (sm.match) {
rc = LDAP_SUCCESS;
- else
+ } else {
rc = LDAP_INAPPROPRIATE_AUTH;
+ }
CONCLUDED:
- if( searchbase.bv_len ) ch_free( searchbase.bv_val );
- if( filter ) filter_free( filter );
+ 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 );
+
#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);
* 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, struct berval *attr, char *authc)
+slap_sasl_check_authz( Connection *conn,
+ struct berval *searchDN,
+ struct berval *assertDN,
+ AttributeDescription *ad,
+ struct berval *authc )
{
- const char *errmsg;
int i, rc;
- BVarray vals=NULL;
- AttributeDescription *ad=NULL;
- struct berval bv;
+ 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_bv2ad( attr, &ad, &errmsg );
- if( rc != LDAP_SUCCESS )
- goto COMPLETE;
-
- bv.bv_val = searchDN+3;
- bv.bv_len = strlen(bv.bv_val);
- rc = backend_attribute( NULL, NULL, NULL, NULL, &bv, ad, &vals );
- if( rc != LDAP_SUCCESS )
- goto COMPLETE;
+ rc = backend_attribute( conn->c_sasl_bindop, NULL,
+ searchDN, ad, &vals );
+ if( rc != LDAP_SUCCESS ) goto COMPLETE;
- bv.bv_val = assertDN+3;
- bv.bv_len = strlen(bv.bv_val);
/* Check if the *assertDN matches any **vals */
for( i=0; vals[i].bv_val != NULL; i++ ) {
- rc = slap_sasl_match( vals[i].bv_val, &bv, authc );
- if ( rc == LDAP_SUCCESS )
- goto COMPLETE;
+ rc = slap_sasl_match( conn->c_sasl_bindop, &vals[i], assertDN, authc );
+ if ( rc == LDAP_SUCCESS ) goto COMPLETE;
}
rc = LDAP_INAPPROPRIATE_AUTH;
COMPLETE:
- if( vals ) bvarray_free( vals );
+ if( vals ) ber_bvarray_free( vals );
#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 );
}
-#endif /* HAVE_CYRUS_SASL */
+/*
+ * 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 rc;
+ slap_callback cb = { sasl_sc_sasl2dn };
+ Operation op = {0};
+ SlapReply rs = {REP_RESULT};
+ struct berval regout = { 0, NULL };
-/* Check if a bind can SASL authorize to another identity.
- Accepts authorization DN's with "dn:" prefix */
+#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;
+
+ /* Convert the SASL name into a minimal URI */
+ if( !slap_sasl_regexp( saslname, ®out, opx->o_tmpmemctx ) ) {
+ goto FINISHED;
+ }
+
+ rc = slap_parseURI( opx, ®out, &op.o_req_ndn, &op.oq_search.rs_scope, &op.oq_search.rs_filter );
+ 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 );
+
+ /* Massive shortcut: search scope == base */
+ if( op.oq_search.rs_scope == LDAP_SCOPE_BASE ) {
+ *sasldn = op.o_req_ndn;
+ op.o_req_ndn.bv_len = 0;
+ op.o_req_ndn.bv_val = NULL;
+ goto FINISHED;
+ }
+
+#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;
+ }
-static struct berval sasl_authz_src = {
- sizeof(SASL_AUTHZ_SOURCE_ATTR)-1, SASL_AUTHZ_SOURCE_ATTR };
+ 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;
+ op.oq_search.rs_deref = LDAP_DEREF_NEVER;
+ op.oq_search.rs_slimit = 1;
+ op.oq_search.rs_attrsonly = 1;
+
+ 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_ndn.bv_len ) ch_free( op.o_req_ndn.bv_val );
+ if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter );
-static struct berval sasl_authz_dst = {
- sizeof(SASL_AUTHZ_DEST_ATTR)-1, SASL_AUTHZ_DEST_ATTR };
+#ifdef NEW_LOGGING
+ LDAP_LOG( TRANSPORT, ENTRY,
+ "slap_sasl2dn: Converted SASL name to %s\n",
+ sasldn->bv_len ? sasldn->bv_val : "<nothing>", 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n",
+ sasldn->bv_len ? sasldn->bv_val : "<nothing>", 0, 0 );
+#endif
-int slap_sasl_authorized( char *authcDN, char *authzDN )
+ return;
+}
+
+
+/* Check if a bind can SASL authorize to another identity.
+ * The DNs should not have the dn: prefix
+ */
+
+int slap_sasl_authorized( Connection *conn,
+ struct berval *authcDN, struct berval *authzDN )
{
int rc = LDAP_INAPPROPRIATE_AUTH;
-#ifdef HAVE_CYRUS_SASL
/* User binding as anonymous */
if ( authzDN == NULL ) {
rc = LDAP_SUCCESS;
}
#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_src,
- authcDN );
- if( rc == LDAP_SUCCESS ) {
+ /* Allow the manager to authorize as any DN. */
+ if( conn->c_authz_backend && be_isroot( conn->c_authz_backend, authcDN )) {
+ rc = LDAP_SUCCESS;
goto DONE;
}
+ /* Check source rules */
+ if( authz_policy & SASL_AUTHZ_TO ) {
+ rc = slap_sasl_check_authz( conn, authcDN, authzDN,
+ slap_schema.si_ad_saslAuthzTo, authcDN );
+ if( rc == LDAP_SUCCESS ) {
+ goto DONE;
+ }
+ }
+
/* Check destination rules */
- rc = slap_sasl_check_authz( authzDN, authcDN, &sasl_authz_dst,
- authcDN );
- if( rc == LDAP_SUCCESS ) {
- goto DONE;
+ if( authz_policy & SASL_AUTHZ_FROM ) {
+ rc = slap_sasl_check_authz( conn, authzDN, authcDN,
+ slap_schema.si_ad_saslAuthzFrom, authcDN );
+ if( rc == LDAP_SUCCESS ) {
+ goto DONE;
+ }
}
rc = LDAP_INAPPROPRIATE_AUTH;
DONE:
-#endif
#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_authorized: return %d\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 );
projects / openldap / blobdiff