]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/saslauthz.c
remove dbenv->lock_put() call from transaction-protected operations
[openldap] / servers / slapd / saslauthz.c
index 55e756b53e59db8906a7fc49ae04d71bf6a7880e..d196a4f084ba1d4c1de2e9278fccc3d43d3dc513 100644 (file)
 #endif
 
 #include <ldap_pvt.h>
-#endif
 
 /* URI format: ldap://<host>/<base>[?[<attrs>][?[<scope>][?[<filter>]]]] */
 
 static int slap_parseURI( struct berval *uri,
-       struct berval *searchbase, int *scope, Filter **filter )
+       struct berval *searchbase, int *scope, Filter **filter,
+       struct berval *fstr )
 {
        struct berval bv;
        int rc;
@@ -46,6 +46,11 @@ static int slap_parseURI( struct berval *uri,
        *scope = -1;
        *filter = NULL;
 
+       if ( fstr ) {
+               fstr->bv_val = NULL;
+               fstr->bv_len = 0;
+       }
+
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
                "slap_parseURI: parsing %s\n", uri->bv_val ));
@@ -86,6 +91,8 @@ is_dn:                bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
                *filter = str2filter( ludp->lud_filter );
                if ( *filter == NULL )
                        rc = LDAP_PROTOCOL_ERROR;
+               else if ( fstr )
+                       ber_str2bv( ludp->lud_filter, 0, 1, fstr );
        }
 
        /* Grab the searchbase */
@@ -100,6 +107,47 @@ is_dn:             bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
        return( rc );
 }
 
+static int slap_sasl_rx_off(char *rep, int *off)
+{
+       const char *c;
+       int n;
+
+       /* Precompile replace pattern. Find the $<n> placeholders */
+       off[0] = -2;
+       n = 1;
+       for ( c = rep;   *c;  c++ ) {
+               if ( *c == '\\' && c[1] ) {
+                       c++;
+                       continue;
+               }
+               if ( *c == '$' ) {
+                       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",
+                                       rep, SASLREGEX_REPLACE ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+                                       "SASL replace pattern %s has too many $n "
+                                               "placeholders (max %d)\n",
+                                       rep, SASLREGEX_REPLACE, 0 );
+#endif
+
+                               return( LDAP_OPERATIONS_ERROR );
+                       }
+                       off[n] = c - rep;
+                       n++;
+               }
+       }
+
+       /* Final placeholder, after the last $n */
+       off[n] = c - rep;
+       n++;
+       off[n] = -1;
+       return( LDAP_SUCCESS );
+}
+#endif /* HAVE_CYRUS_SASL */
 
 int slap_sasl_regexp_config( const char *match, const char *replace )
 {
@@ -108,6 +156,7 @@ int slap_sasl_regexp_config( const char *match, const char *replace )
        int rc, n;
        SaslRegexp_t *reg;
        struct berval bv, nbv;
+       Filter *filter;
 
        SaslRegexp = (SaslRegexp_t *) ch_realloc( (char *) SaslRegexp,
          (nSaslRegexp + 1) * sizeof(SaslRegexp_t) );
@@ -129,20 +178,21 @@ int slap_sasl_regexp_config( const char *match, const char *replace )
        reg->sr_match = nbv.bv_val;
 
        ber_str2bv( replace, 0, 0, &bv );
-       rc = dnNormalize2( NULL, &bv, &nbv );
+       rc = slap_parseURI( &bv, &reg->sr_replace.dn, &reg->sr_replace.scope,
+               &filter, &reg->sr_replace.filter );
+       if ( filter ) filter_free( filter );
        if ( rc ) {
 #ifdef NEW_LOGGING
                LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
-                          "slap_sasl_regexp_config: \"%s\" could not be normalized.\n",
+                          "slap_sasl_regexp_config: \"%s\" could not be parsed.\n",
                           replace ));
 #else
                Debug( LDAP_DEBUG_ANY,
-               "SASL replace pattern %s could not be normalized.\n",
+               "SASL replace pattern %s could not be parsed.\n",
                replace, 0, 0 );
 #endif
                return( rc );
        }
-       reg->sr_replace = nbv.bv_val;
 
        /* Precompile matching pattern */
        rc = regcomp( &reg->sr_workspace, reg->sr_match, REG_EXTENDED|REG_ICASE );
@@ -160,40 +210,14 @@ int slap_sasl_regexp_config( const char *match, const char *replace )
                return( LDAP_OPERATIONS_ERROR );
        }
 
-       /* Precompile replace pattern. Find the $<n> placeholders */
-       reg->sr_offset[0] = -2;
-       n = 1;
-       for ( c = reg->sr_replace;       *c;  c++ ) {
-               if ( *c == '\\' && c[1] ) {
-                       c++;
-                       continue;
-               }
-               if ( *c == '$' ) {
-                       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->sr_replace, SASLREGEX_REPLACE ));
-#else
-                               Debug( LDAP_DEBUG_ANY,
-                                       "SASL replace pattern %s has too many $n "
-                                               "placeholders (max %d)\n",
-                                       reg->sr_replace, SASLREGEX_REPLACE, 0 );
-#endif
+       rc = slap_sasl_rx_off( reg->sr_replace.dn.bv_val, reg->sr_dn_offset );
+       if ( rc != LDAP_SUCCESS ) return rc;
 
-                               return( LDAP_OPERATIONS_ERROR );
-                       }
-                       reg->sr_offset[n] = c - reg->sr_replace;
-                       n++;
-               }
+       if (reg->sr_replace.filter.bv_val ) {
+               rc = slap_sasl_rx_off( reg->sr_replace.filter.bv_val, reg->sr_fi_offset );
+               if ( rc != LDAP_SUCCESS ) return rc;
        }
 
-       /* Final placeholder, after the last $n */
-       reg->sr_offset[n] = c - reg->sr_replace;
-       n++;
-       reg->sr_offset[n] = -1;
-
        nSaslRegexp++;
 #endif
        return( LDAP_SUCCESS );
@@ -202,17 +226,65 @@ int slap_sasl_regexp_config( const char *match, const char *replace )
 
 #ifdef HAVE_CYRUS_SASL
 
+/* Perform replacement on regexp matches */
+static void slap_sasl_rx_exp( char *rep, int *off, regmatch_t *str,
+       char *saslname, struct berval *out )
+{
+       int i, n, len, insert;
+
+       /* Get the total length of the final URI */
+
+       n=1;
+       len = 0;
+       while( off[n] >= 0 ) {
+               /* Len of next section from replacement string (x,y,z above) */
+               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 = rep[ off[n] + 1 ]   - '0';
+               len += str[i].rm_eo - str[i].rm_so;
+               n++;
+       }
+       out->bv_val = ch_malloc( len + 1 );
+       out->bv_len = len;
+
+       /* Fill in URI with replace string, replacing $i as we go */
+       n=1;
+       insert = 0;
+       while( off[n] >= 0) {
+               /* Paste in next section from replacement string (x,y,z above) */
+               len = off[n] - off[n-1] - 2;
+               strncpy( out->bv_val+insert, rep + off[n-1] + 2, len);
+               insert += len;
+               if( off[n+1] < 0)
+                       break;
+
+               /* Paste in string from saslname that matched next $i  (b,d above) */
+               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++;
+       }
+
+       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) */
-static int slap_sasl_regexp( struct berval *in, struct berval *out )
+
+static int slap_sasl_regexp( struct berval *in, SaslUri_t *out )
 {
        char *saslname = in->bv_val;
-       int i, n, len, insert;
+       char *scope[] = { "base", "one", "sub" };
        SaslRegexp_t *reg;
+       int i;
 
-       out->bv_val = NULL;
-       out->bv_len = 0;
+       memset( out, 0, sizeof( *out ) );
 
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
@@ -240,53 +312,25 @@ static int slap_sasl_regexp( struct berval *in, struct berval *out )
         * 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.dn.bv_val, reg->sr_dn_offset,
+               reg->sr_strings, saslname, &out->dn );
 
+       if ( reg->sr_replace.filter.bv_val )
+               slap_sasl_rx_exp( reg->sr_replace.filter.bv_val,
+                       reg->sr_fi_offset, reg->sr_strings, saslname, &out->filter );
+       
+       out->scope = reg->sr_replace.scope;
 
-       /* Get the total length of the final URI */
-
-       n=1;
-       len = 0;
-       while( reg->sr_offset[n] >= 0 ) {
-               /* Len of next section from replacement string (x,y,z above) */
-               len += reg->sr_offset[n] - reg->sr_offset[n-1] - 2;
-               if( reg->sr_offset[n+1] < 0)
-                       break;
-
-               /* Len of string from saslname that matched next $i  (b,d above) */
-               i = reg->sr_replace[ reg->sr_offset[n] + 1 ]    - '0';
-               len += reg->sr_strings[i].rm_eo - reg->sr_strings[i].rm_so;
-               n++;
-       }
-       out->bv_val = ch_malloc( len + 1 );
-       out->bv_len = len;
-
-       /* Fill in URI with replace string, replacing $i as we go */
-       n=1;
-       insert = 0;
-       while( reg->sr_offset[n] >= 0) {
-               /* Paste in next section from replacement string (x,y,z above) */
-               len = reg->sr_offset[n] - reg->sr_offset[n-1] - 2;
-               strncpy( out->bv_val+insert, reg->sr_replace + reg->sr_offset[n-1] + 2, len);
-               insert += len;
-               if( reg->sr_offset[n+1] < 0)
-                       break;
-
-               /* Paste in string from saslname that matched next $i  (b,d above) */
-               i = reg->sr_replace[ reg->sr_offset[n] + 1 ]    - '0';
-               len = reg->sr_strings[i].rm_eo - reg->sr_strings[i].rm_so;
-               strncpy( out->bv_val+insert, saslname + reg->sr_strings[i].rm_so, len );
-               insert += len;
-
-               n++;
-       }
-
-       out->bv_val[insert] = '\0';
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
-               "slap_sasl_regexp: converted SASL name to %s\n", out->bv_val ));
+               "slap_sasl_regexp: converted SASL name to ldap:///%s??%s?%s\n",
+               out->dn.bv_val, scope[out->scope], out->filter.bv_val ?
+               out->filter.bv_val : "" ));
 #else
        Debug( LDAP_DEBUG_TRACE,
-          "slap_sasl_regexp: converted SASL name to %s\n", out->bv_val, 0, 0 );
+          "slap_sasl_regexp: converted SASL name to ldap:///%s??%s?%s\n",
+               out->dn.bv_val, scope[out->scope], out->filter.bv_val ?
+               out->filter.bv_val : "" );
 #endif
 
        return( 1 );
@@ -339,15 +383,14 @@ static int sasl_sc_sasl2dn( BackendDB *be, Connection *conn, Operation *o,
  * entry, return the DN of that one entry.
  */
 
-void slap_sasl2dn( struct berval *saslname, struct berval *dn )
+void slap_sasl2dn( Connection *conn, struct berval *saslname, struct berval *dn )
 {
-       struct berval uri = {0, NULL};
-       struct berval searchbase = {0, NULL};
-       int rc, scope;
+       int rc;
        Backend *be;
        Filter *filter=NULL;
        slap_callback cb = {sasl_sc_r, sasl_sc_s, sasl_sc_sasl2dn, NULL};
        Operation op = {0};
+       SaslUri_t uri;
 
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
@@ -360,44 +403,40 @@ void slap_sasl2dn( struct berval *saslname, struct berval *dn )
        dn->bv_len = 0;
        cb.sc_private = dn;
 
-       /* Convert the SASL name into an LDAP URI */
+       /* Convert the SASL name into a minimal URI */
        if( !slap_sasl_regexp( saslname, &uri ) )
                goto FINISHED;
 
-       rc = slap_parseURI( &uri, &searchbase, &scope, &filter );
-       if( rc ) {
-               goto FINISHED;
-       }
+       if ( uri.filter.bv_val )
+               filter = str2filter( uri.filter.bv_val );
+
+       /* Must do an internal search */
+
+       be = select_backend( &uri.dn, 0, 1 );
+
+       conn->c_authz_backend = be;
 
-       /* FIXME: move this check to after select_backend, and set
-        * the selected backend in conn->c_authz_backend, to allow
-        * passwd_extop to be used on in-directory SASL secrets.
-        *   ... when all of that gets implemented...
-        */
        /* Massive shortcut: search scope == base */
-       if( scope == LDAP_SCOPE_BASE ) {
-               *dn = searchbase;
-               searchbase.bv_len = 0;
-               searchbase.bv_val = NULL;
+       if( uri.scope == LDAP_SCOPE_BASE ) {
+               *dn = uri.dn;
+               uri.dn.bv_len = 0;
+               uri.dn.bv_val = NULL;
                goto FINISHED;
        }
 
-       /* Must do an internal search */
-
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
                   "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
-                  searchbase.bv_val, scope ));
+                  uri.dn.bv_val, uri.scope ));
 #else
        Debug( LDAP_DEBUG_TRACE,
           "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
-          searchbase.bv_val, scope, 0 );
+          uri.dn.bv_val, uri.scope, 0 );
 #endif
 
-       be = select_backend( &searchbase, 0, 1 );
        if(( be == NULL ) || ( be->be_search == NULL))
                goto FINISHED;
-       suffix_alias( be, &searchbase );
+       suffix_alias( be, &uri.dn );
 
        op.o_tag = LDAP_REQ_SEARCH;
        op.o_protocol = LDAP_VERSION3;
@@ -405,14 +444,14 @@ void slap_sasl2dn( struct berval *saslname, struct berval *dn )
        op.o_callback = &cb;
        op.o_time = slap_get_time();
 
-       (*be->be_search)( be, /*conn*/NULL, &op, /*base*/NULL, &searchbase,
-          scope, /*deref=*/1, /*sizelimit=*/1, /*time=*/0, filter, /*fstr=*/NULL,
+       (*be->be_search)( be, /*conn*/NULL, &op, /*base*/NULL, &uri.dn,
+          uri.scope, /*deref=*/1, /*sizelimit=*/1, /*time=*/0, filter, /*fstr=*/NULL,
           /*attrs=*/NULL, /*attrsonly=*/0 );
        
 FINISHED:
-       if( searchbase.bv_len ) ch_free( searchbase.bv_val );
+       if( uri.dn.bv_len ) ch_free( uri.dn.bv_val );
+       if( uri.filter.bv_len ) ch_free( uri.filter.bv_val );
        if( filter ) filter_free( filter );
-       if( uri.bv_val ) ch_free( uri.bv_val );
 
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
@@ -473,7 +512,7 @@ int slap_sasl_match( struct berval *rule, struct berval *assertDN, struct berval
           "===>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 );
+       rc = slap_parseURI( rule, &searchbase, &scope, &filter, NULL );
        if( rc != LDAP_SUCCESS )
                goto CONCLUDED;