]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/saslauthz.c
Added ppolicy_hide_lockout keyword
[openldap] / servers / slapd / saslauthz.c
index 1c0ca2efab7de1dc3a3560c1705bee9fc8dd85dc..50d9d297ddbd8c87c15cb4b06a169ef3be9d1cc4 100644 (file)
@@ -1,7 +1,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2003 The OpenLDAP Foundation.
+ * Copyright 1998-2004 The OpenLDAP Foundation.
  * Portions Copyright 2000 Mark Adamson, Carnegie Mellon.
  * All rights reserved.
  *
 #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 DN form can now have a type specifier, that influences
- * how they are used in related operations.
+ * IDs in DNauthzid form can now have a type specifier, that
+ * influences how they are used in related operations.
  *
- * syntax:
- *
- * dn[.{exact|regex}]:<val>
+ * syntax: dn[.{exact|regex}]:<val>
  *
  * dn.exact:   the value must pass normalization and is used 
  *             in exact DN match.
  *             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]]:<val>
+ * 
+ * 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 */
+  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;
 
 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
+#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;
 
@@ -81,14 +90,93 @@ int slap_sasl_setpolicy( const char *arg )
                authz_policy = SASL_AUTHZ_FROM;
        } else if ( strcasecmp( arg, "to" ) == 0 ) {
                authz_policy = SASL_AUTHZ_TO;
-       } else if ( strcasecmp( arg, "both" ) == 0 ) {
+       } 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;
+}
+
 static int slap_parseURI( Operation *op, struct berval *uri,
        struct berval *base, struct berval *nbase,
        int *scope, Filter **filter, struct berval *fstr )
@@ -115,8 +203,8 @@ static int slap_parseURI( Operation *op, struct berval *uri,
                "slap_parseURI: parsing %s\n", uri->bv_val, 0, 0 );
 #endif
 
+       rc = LDAP_PROTOCOL_ERROR;
        if ( !strncasecmp( uri->bv_val, "dn", sizeof( "dn" ) - 1 ) ) {
-               rc = LDAP_PROTOCOL_ERROR;
                bv.bv_val = uri->bv_val + sizeof( "dn" ) - 1;
 
                if ( bv.bv_val[ 0 ] == '.' ) {
@@ -138,6 +226,10 @@ static int slap_parseURI( Operation *op, struct berval *uri,
                                bv.bv_val += sizeof( "subtree" ) - 1;
                                *scope = LDAP_X_SCOPE_SUBTREE;
 
+                       } else if ( !strncasecmp( bv.bv_val, "onelevel:", sizeof( "onelevel:" ) - 1 ) ) {
+                               bv.bv_val += sizeof( "onelevel" ) - 1;
+                               *scope = LDAP_X_SCOPE_ONELEVEL;
+
                        } else {
                                return LDAP_PROTOCOL_ERROR;
                        }
@@ -157,6 +249,7 @@ is_dn:              bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
                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;
@@ -173,11 +266,48 @@ is_dn:            bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
                        break;
                }
 
-               return( rc );
+               return rc;
 
-       } else if ( !strncasecmp( uri->bv_val, "u:", sizeof( "u:" ) - 1 ) ) {
-               /* FIXME: I'll handle this later ... */
-               return LDAP_PROTOCOL_ERROR;
+       } 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 = { 0, NULL },
+                               realm = { 0, NULL },
+                               mech = { 0, NULL };
+
+               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 ) );
+
+               rc = slap_parse_user( &id, &user, &realm, &mech );
+               if ( rc != LDAP_SUCCESS ) {
+                       return rc;
+               }
+
+               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 );
+
+               if ( rc == LDAP_SUCCESS ) {
+                       *scope = LDAP_X_SCOPE_EXACT;
+               }
+
+               return rc;
        }
                
        rc = ldap_url_parse( uri->bv_val, &ludp );
@@ -368,7 +498,8 @@ static void slap_sasl_rx_exp(
    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, void *ctx )
+static int slap_sasl_regexp( struct berval *in, struct berval *out,
+               int flags, void *ctx )
 {
        char *saslname = in->bv_val;
        SaslRegexp_t *reg;
@@ -433,10 +564,10 @@ static int sasl_sc_sasl2dn( Operation *o, SlapReply *rs )
 
 #ifdef NEW_LOGGING
                LDAP_LOG( TRANSPORT, DETAIL1,
-                       "slap_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
+                       "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
 #else
                Debug( LDAP_DEBUG_TRACE,
-                       "slap_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
+                       "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
 #endif
                return -1;
        }
@@ -514,6 +645,7 @@ exact_match:
 
        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;
 
@@ -523,10 +655,35 @@ exact_match:
                        goto exact_match;
 
                } else if ( d > 0 ) {
-                       struct berval bv = { op.o_req_ndn.bv_len, assertDN->bv_val + d };
+                       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 ) ) {
-                               rc = LDAP_SUCCESS;
+                               switch ( op.oq_search.rs_scope ) {
+                               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;
@@ -685,7 +842,7 @@ COMPLETE:
  * entry, return the DN of that one entry.
  */
 void slap_sasl2dn( Operation *opx,
-       struct berval *saslname, struct berval *sasldn )
+       struct berval *saslname, struct berval *sasldn, int flags )
 {
        int rc;
        slap_callback cb = { NULL, sasl_sc_sasl2dn, NULL, NULL };
@@ -708,7 +865,7 @@ void slap_sasl2dn( Operation *opx,
        cb.sc_private = sasldn;
 
        /* Convert the SASL name into a minimal URI */
-       if( !slap_sasl_regexp( saslname, &regout, opx->o_tmpmemctx ) ) {
+       if( !slap_sasl_regexp( saslname, &regout, flags, opx->o_tmpmemctx ) ) {
                goto FINISHED;
        }
 
@@ -735,11 +892,15 @@ void slap_sasl2dn( Operation *opx,
        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_ONELEVEL:
        case LDAP_SCOPE_SUBTREE:
+#ifdef LDAP_SCOPE_SUBORDINATE
+       case LDAP_SCOPE_SUBORDINATE:
+#endif
                /* do a search */
                break;
 
@@ -847,7 +1008,7 @@ int slap_sasl_authorized( Operation *op,
        if( authz_policy & SASL_AUTHZ_TO ) {
                rc = slap_sasl_check_authz( op, authcDN, authzDN,
                        slap_schema.si_ad_saslAuthzTo, authcDN );
-               if( rc == LDAP_SUCCESS ) {
+               if( rc == LDAP_SUCCESS && !(authz_policy & SASL_AUTHZ_AND) ) {
                        goto DONE;
                }
        }