X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Faclparse.c;h=0032846346699260a925059317b70088e9a86f91;hb=b1b8d9d651d285f88a98d41db43924ea83399e27;hp=b7b0d9507ab8b5684e577cb2e860fbf4995a504f;hpb=ab64c237f7c6c838fa4be2203619c060ae80426a;p=openldap

diff --git a/servers/slapd/aclparse.c b/servers/slapd/aclparse.c
index b7b0d9507a..0032846346 100644
--- a/servers/slapd/aclparse.c
+++ b/servers/slapd/aclparse.c
@@ -1,4 +1,9 @@
-/* acl.c - routines to parse and check acl's */
+/* aclparse.c - routines to parse and check acl's */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 #include "portable.h"
 
@@ -11,18 +16,22 @@
 #include <ac/unistd.h>
 
 #include "slap.h"
+#include "lber_pvt.h"
+#include "lutil.h"
 
 static void		split(char *line, int splitchar, char **left, char **right);
-static void		acl_append(struct acl **l, struct acl *a);
-static void		access_append(struct access **l, struct access *a);
-static void		acl_usage(void);
+static void		access_append(Access **l, Access *a);
+static void		acl_usage(void) LDAP_GCCATTR((noreturn));
+
+static void		acl_regex_normalized_dn(const char *src, struct berval *pat);
+
 #ifdef LDAP_DEBUG
-static void		print_acl(struct acl *a);
-static void		print_access(struct access *b);
+static void		print_acl(Backend *be, AccessControl *a);
+static void		print_access(Access *b);
 #endif
 
-static int
-regtest(char *fname, int lineno, char *pat) {
+static void
+regtest(const char *fname, int lineno, char *pat) {
 	int e;
 	regex_t re;
 
@@ -60,7 +69,7 @@ regtest(char *fname, int lineno, char *pat) {
 	if ( size >= (sizeof(buf)-1) ) {
 		fprintf( stderr,
 			"%s: line %d: regular expression \"%s\" too large\n",
-			fname, lineno, pat, 0 );
+			fname, lineno, pat );
 		acl_usage();
 	}
 
@@ -71,25 +80,26 @@ regtest(char *fname, int lineno, char *pat) {
 			"%s: line %d: regular expression \"%s\" bad because of %s\n",
 			fname, lineno, pat, error );
 		acl_usage();
-		return(0);
 	}
 	regfree(&re);
-	return(1);
 }
 
 void
 parse_acl(
     Backend	*be,
-    char	*fname,
+    const char	*fname,
     int		lineno,
     int		argc,
     char	**argv
 )
 {
 	int		i;
-	char		*left, *right;
-	struct acl	*a;
-	struct access	*b;
+	char		*left, *right, *style;
+	struct berval	bv;
+	AccessControl	*a;
+	Access	*b;
+	int rc;
+	const char *text;
 
 	a = NULL;
 	for ( i = 1; i < argc; i++ ) {
@@ -101,7 +111,7 @@ parse_acl(
 				    fname, lineno );
 				acl_usage();
 			}
-			a = (struct acl *) ch_calloc( 1, sizeof(struct acl) );
+			a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
 			for ( ++i; i < argc; i++ ) {
 				if ( strcasecmp( argv[i], "by" ) == 0 ) {
 					i--;
@@ -109,58 +119,105 @@ parse_acl(
 				}
 
 				if ( strcasecmp( argv[i], "*" ) == 0 ) {
-					int e;
-					if ((e = regcomp( &a->acl_dnre, ".*",
-						REG_EXTENDED|REG_ICASE)))
+					if( a->acl_dn_pat.bv_len ||
+						( a->acl_dn_style != ACL_STYLE_REGEX ) )
 					{
-						char buf[512];
-						regerror(e, &a->acl_dnre, buf, sizeof(buf));
 						fprintf( stderr,
-							"%s: line %d: regular expression \"%s\" bad because of %s\n",
-							fname, lineno, right, buf );
+							"%s: line %d: dn pattern"
+							" already specified in to clause.\n",
+							fname, lineno );
 						acl_usage();
 					}
-					a->acl_dnpat = ch_strdup( ".*" );
+
+					a->acl_dn_pat.bv_val = ch_strdup( "*" );
+					a->acl_dn_pat.bv_len = 1;
 					continue;
 				}
 
 				split( argv[i], '=', &left, &right );
-				if ( right == NULL || *right == '\0' ) {
+				split( left, '.', &left, &style );
+
+				if ( right == NULL ) {
 					fprintf( stderr,
-	"%s: line %d: missing \"=\" in (or value after) \"%s\" in to clause\n",
+	"%s: line %d: missing \"=\" in \"%s\" in to clause\n",
 					    fname, lineno, left );
 					acl_usage();
 				}
 
+				if ( strcasecmp( left, "dn" ) == 0 ) {
+					if( a->acl_dn_pat.bv_len != 0 ||
+						( a->acl_dn_style != ACL_STYLE_REGEX ) )
+					{
+						fprintf( stderr,
+							"%s: line %d: dn pattern"
+							" already specified in to clause.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( style == NULL || *style == '\0'
+						|| strcasecmp( style, "regex" ) == 0 )
+					{
+						a->acl_dn_style = ACL_STYLE_REGEX;
+
+						if ( *right == '\0' ) {
+							/* empty regex should match empty DN */
+							a->acl_dn_style = ACL_STYLE_BASE;
+							ber_str2bv( right, 0, 1, &a->acl_dn_pat );
+
+						} else if ( strcmp(right, "*") == 0 
+							|| strcmp(right, ".*") == 0 
+							|| strcmp(right, ".*$") == 0 
+							|| strcmp(right, "^.*") == 0 
+							|| strcmp(right, "^.*$") == 0
+							|| strcmp(right, ".*$$") == 0 
+							|| strcmp(right, "^.*$$") == 0 )
+						{
+							a->acl_dn_pat.bv_val = ch_strdup( "*" );
+							a->acl_dn_pat.bv_len = sizeof("*")-1;
+
+						} else {
+							acl_regex_normalized_dn( right, &a->acl_dn_pat );
+						}
+					} else if ( strcasecmp( style, "base" ) == 0 ) {
+						a->acl_dn_style = ACL_STYLE_BASE;
+						ber_str2bv( right, 0, 1, &a->acl_dn_pat );
+					} else if ( strcasecmp( style, "one" ) == 0 ) {
+						a->acl_dn_style = ACL_STYLE_ONE;
+						ber_str2bv( right, 0, 1, &a->acl_dn_pat );
+					} else if ( strcasecmp( style, "subtree" ) == 0 || strcasecmp( style, "sub" ) == 0 ) {
+						a->acl_dn_style = ACL_STYLE_SUBTREE;
+						ber_str2bv( right, 0, 1, &a->acl_dn_pat );
+					} else if ( strcasecmp( style, "children" ) == 0 ) {
+						a->acl_dn_style = ACL_STYLE_CHILDREN;
+						ber_str2bv( right, 0, 1, &a->acl_dn_pat );
+					} else {
+						fprintf( stderr,
+	"%s: line %d: unknown dn style \"%s\" in to clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					continue;
+				}
+
 				if ( strcasecmp( left, "filter" ) == 0 ) {
-					if ( (a->acl_filter = str2filter(
-					    right )) == NULL ) {
+					if ( (a->acl_filter = str2filter( right )) == NULL ) {
 						fprintf( stderr,
 				"%s: line %d: bad filter \"%s\" in to clause\n",
 						    fname, lineno, right );
 						acl_usage();
 					}
-				} else if ( strcasecmp( left, "dn" ) == 0 ) {
-					int e;
-					if ((e = regcomp(&a->acl_dnre, right,
-						REG_EXTENDED|REG_ICASE))) {
-						char buf[512];
-						regerror(e, &a->acl_dnre, buf, sizeof(buf));
+
+				} else if ( strncasecmp( left, "attr", 4 ) == 0 ) {
+					a->acl_attrs = str2anlist( a->acl_attrs,
+						right, "," );
+					if ( a->acl_attrs == NULL ) {
 						fprintf( stderr,
-				"%s: line %d: regular expression \"%s\" bad because of %s\n",
-							fname, lineno, right, buf );
+				"%s: line %d: unknown attr \"%s\" in to clause\n",
+						    fname, lineno, right );
 						acl_usage();
-
-					} else {
-						a->acl_dnpat = dn_upcase(ch_strdup( right ));
 					}
-				} else if ( strncasecmp( left, "attr", 4 )
-				    == 0 ) {
-					char	**alist;
-
-					alist = str2charray( right, "," );
-					charray_merge( &a->acl_attrs, alist );
-					charray_free( alist );
 				} else {
 					fprintf( stderr,
 						"%s: line %d: expecting <what> got \"%s\"\n",
@@ -169,6 +226,42 @@ parse_acl(
 				}
 			}
 
+			if ( a->acl_dn_pat.bv_len != 0 &&
+				strcmp(a->acl_dn_pat.bv_val, "*") == 0 )
+			{
+				free( a->acl_dn_pat.bv_val );
+				a->acl_dn_pat.bv_val = NULL;
+				a->acl_dn_pat.bv_len = 0;
+			}
+			
+			if( a->acl_dn_pat.bv_len != 0 ||
+				( a->acl_dn_style != ACL_STYLE_REGEX ) )
+			{
+				if ( a->acl_dn_style != ACL_STYLE_REGEX ) {
+					struct berval bv;
+					rc = dnNormalize2( NULL, &a->acl_dn_pat, &bv, NULL);
+					if ( rc != LDAP_SUCCESS ) {
+						fprintf( stderr,
+							"%s: line %d: bad DN \"%s\"\n",
+							fname, lineno, a->acl_dn_pat.bv_val );
+						acl_usage();
+					}
+					free( a->acl_dn_pat.bv_val );
+					a->acl_dn_pat = bv;
+				} else {
+					int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
+						REG_EXTENDED | REG_ICASE );
+					if ( e ) {
+						char buf[512];
+						regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
+						fprintf( stderr, "%s: line %d: "
+							"regular expression \"%s\" bad because of %s\n",
+							fname, lineno, right, buf );
+						acl_usage();
+					}
+				}
+			}
+
 		/* by clause - select who has what access to entries */
 		} else if ( strcasecmp( argv[i], "by" ) == 0 ) {
 			if ( a == NULL ) {
@@ -177,11 +270,14 @@ parse_acl(
 				    fname, lineno );
 				acl_usage();
 			}
+
 			/*
 			 * by clause consists of <who> and <access>
 			 */
 
-			b = (struct access *) ch_calloc( 1, sizeof(struct access) );
+			b = (Access *) ch_calloc( 1, sizeof(Access) );
+
+			ACL_INVALIDATE( b->a_access_mask );
 
 			if ( ++i == argc ) {
 				fprintf( stderr,
@@ -191,283 +287,1360 @@ parse_acl(
 			}
 
 			/* get <who> */
-			split( argv[i], '=', &left, &right );
-			if ( strcasecmp( argv[i], "*" ) == 0 ) {
-				b->a_dnpat = ch_strdup( ".*" );
-			} else if ( strcasecmp( argv[i], "self" ) == 0 ) {
-				b->a_dnpat = ch_strdup( "self" );
-			} else if ( strcasecmp( left, "dn" ) == 0 ) {
-				regtest(fname, lineno, right);
-				b->a_dnpat = dn_upcase( ch_strdup( right ) );
-			} else if ( strcasecmp( left, "dnattr" ) == 0 ) {
-				b->a_dnattr = ch_strdup( right );
-
-#ifdef SLAPD_ACLGROUPS
-			} else if ( strcasecmp( left, "group" ) == 0 ) {
-                                char *name = NULL;
-                                char *value = NULL;
-				regtest(fname, lineno, right);
-
-                                /* format of string is "group/objectClassValue/groupAttrName"
-                                 */
-                                if ((value = strchr(right, '/')) != NULL) {
-                                        *value++ = '\0';
-                                        if (value && *value && (name = strchr(value, '/')) != NULL) 
-                                            *name++ = '\0';
-                                }
-
-				b->a_group = dn_upcase(ch_strdup( right ));
-
-                                if (value && *value) {
-                                        b->a_objectclassvalue = ch_strdup(value);
-                                        *--value = '/';
-                                }
-                                else
-                                        b->a_objectclassvalue = ch_strdup("groupOfNames");
-
-                                if (name && *name) {
-                                        b->a_groupattrname = ch_strdup(name);
-                                        *--name = '/';
-                                }
-                                else
-                                        b->a_groupattrname = ch_strdup("member");
-
-
-
-#endif /* SLAPD_ACLGROUPS */
-			} else if ( strcasecmp( left, "domain" ) == 0 ) {
-				char	*s;
-				regtest(fname, lineno, right);
-				b->a_domainpat = ch_strdup( right );
-
-				/* normalize the domain */
-				for ( s = b->a_domainpat; *s; s++ ) {
-					*s = TOLOWER( (unsigned char) *s );
+			for ( ; i < argc; i++ ) {
+				slap_style_t sty = ACL_STYLE_REGEX;
+				char *style_modifier = NULL;
+				int expand = 0;
+
+				split( argv[i], '=', &left, &right );
+				split( left, '.', &left, &style );
+				if ( style ) {
+					split( style, ',', &style, &style_modifier);
+				}
+				if ( style == NULL || *style == '\0'
+					|| strcasecmp( style, "regex" ) == 0 )
+				{
+					sty = ACL_STYLE_REGEX;
+				} else if ( strcasecmp( style, "exact" ) == 0 ) {
+					sty = ACL_STYLE_EXACT;
+				} else if ( strcasecmp( style, "base" ) == 0 ) {
+					sty = ACL_STYLE_BASE;
+				} else if ( strcasecmp( style, "one" ) == 0 ) {
+					sty = ACL_STYLE_ONE;
+				} else if ( strcasecmp( style, "subtree" ) == 0 || strcasecmp( style, "sub" ) == 0 ) {
+					sty = ACL_STYLE_SUBTREE;
+				} else if ( strcasecmp( style, "children" ) == 0 ) {
+					sty = ACL_STYLE_CHILDREN;
+				} else {
+					fprintf( stderr,
+						"%s: line %d: unknown style \"%s\" in by clause\n",
+					    fname, lineno, style );
+					acl_usage();
 				}
-			} else if ( strcasecmp( left, "addr" ) == 0 ) {
-				regtest(fname, lineno, right);
-				b->a_addrpat = ch_strdup( right );
-			} else {
-				fprintf( stderr,
-				    "%s: line %d: expecting <who> got \"%s\"\n",
-				    fname, lineno, left );
-				acl_usage();
-			}
 
-			if ( ++i == argc ) {
-				fprintf( stderr,
-			    "%s: line %d: premature eol: expecting <access>\n",
-				    fname, lineno );
-				acl_usage();
-			}
+				if ( style_modifier && strcasecmp( style_modifier, "expand" ) == 0 ) {
+					expand = 1;
+				}
 
-			/* get <access> */
-			split( argv[i], '=', &left, &right );
-			if ( (b->a_access = str2access( left )) == -1 ) {
-				fprintf( stderr,
-			    "%s: line %d: expecting <access> got \"%s\"\n",
-				    fname, lineno, left );
-				acl_usage();
-			}
-			access_append( &a->acl_access, b );
+				if ( strcasecmp( argv[i], "*" ) == 0 ) {
+					bv.bv_val = ch_strdup( "*" );
+					bv.bv_len = 1;
 
-		} else {
-			fprintf( stderr,
-		    "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
-			    fname, lineno, argv[i] );
-			acl_usage();
-		}
-	}
+				} else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
+					ber_str2bv("anonymous",
+						sizeof("anonymous")-1,
+						1, &bv);
 
-	/* if we have no real access clause, complain and do nothing */
-	if ( a == NULL ) {
-			fprintf( stderr,
-				"%s: line %d: warning: no access clause(s) specified in access line\n",
-			    fname, lineno );
+				} else if ( strcasecmp( argv[i], "self" ) == 0 ) {
+					ber_str2bv("self",
+						sizeof("self")-1,
+						1, &bv);
 
-	} else {
+				} else if ( strcasecmp( argv[i], "users" ) == 0 ) {
+					ber_str2bv("users",
+						sizeof("users")-1,
+						1, &bv);
 
-#ifdef LDAP_DEBUG
-                if (ldap_debug & LDAP_DEBUG_ACL)
-                    print_acl(a);
-#endif
-	
-		if ( a->acl_access == NULL ) {
-			fprintf( stderr,
-		    	"%s: line %d: warning: no by clause(s) specified in access line\n",
-			    fname, lineno );
-		}
+				} else if ( strcasecmp( left, "dn" ) == 0 ) {
+					if ( sty == ACL_STYLE_REGEX ) {
+						b->a_dn_style = ACL_STYLE_REGEX;
+						if( right == NULL ) {
+							/* no '=' */
+							ber_str2bv("users",
+								sizeof("users")-1,
+								1, &bv);
+						} else if (*right == '\0' ) {
+							/* dn="" */
+							ber_str2bv("anonymous",
+								sizeof("anonymous")-1,
+								1, &bv);
+						} else if ( strcmp( right, "*" ) == 0 ) {
+							/* dn=* */
+							/* any or users?  users for now */
+							ber_str2bv("users",
+								sizeof("users")-1,
+								1, &bv);
+						} else if ( strcmp( right, ".+" ) == 0
+							|| strcmp( right, "^.+" ) == 0
+							|| strcmp( right, ".+$" ) == 0
+							|| strcmp( right, "^.+$" ) == 0
+							|| strcmp( right, ".+$$" ) == 0
+							|| strcmp( right, "^.+$$" ) == 0 )
+						{
+							ber_str2bv("users",
+								sizeof("users")-1,
+								1, &bv);
+						} else if ( strcmp( right, ".*" ) == 0
+							|| strcmp( right, "^.*" ) == 0
+							|| strcmp( right, ".*$" ) == 0
+							|| strcmp( right, "^.*$" ) == 0
+							|| strcmp( right, ".*$$" ) == 0
+							|| strcmp( right, "^.*$$" ) == 0 )
+						{
+							ber_str2bv("*",
+								sizeof("*")-1,
+								1, &bv);
 
-		if ( be != NULL ) {
-			acl_append( &be->be_acl, a );
-		} else {
-			acl_append( &global_acl, a );
-		}
-	}
-}
+						} else {
+							acl_regex_normalized_dn( right, &bv );
+							if ( !ber_bvccmp( &bv, '*' ) ) {
+								regtest(fname, lineno, bv.bv_val);
+							}
+						}
+					} else if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+						    fname, lineno, left );
+						acl_usage();
 
-char *
-access2str( int access )
-{
-	static char	buf[12];
+					} else {
+						ber_str2bv( right, 0, 1, &bv );
+					}
 
-	if ( access & ACL_SELF ) {
-		strcpy( buf, "self" );
-	} else {
-		buf[0] = '\0';
-	}
-
-	if ( access & ACL_NONE ) {
-		strcat( buf, "none" );
-	} else if ( access & ACL_COMPARE ) {
-		strcat( buf, "compare" );
-	} else if ( access & ACL_SEARCH ) {
-		strcat( buf, "search" );
-	} else if ( access & ACL_READ ) {
-		strcat( buf, "read" );
-	} else if ( access & ACL_WRITE ) {
-		strcat( buf, "write" );
-	} else {
-		strcat( buf, "unknown" );
-	}
+				} else {
+					bv.bv_val = NULL;
+				}
 
-	return( buf );
-}
+				if( bv.bv_val != NULL ) {
+					if( b->a_dn_pat.bv_len != 0 ) {
+						fprintf( stderr,
+						    "%s: line %d: dn pattern already specified.\n",
+						    fname, lineno );
+						acl_usage();
+					}
 
-int
-str2access( char *str )
-{
-	int	access;
+					if ( sty != ACL_STYLE_REGEX && expand == 0 ) {
+						rc = dnNormalize2(NULL, &bv, &b->a_dn_pat, NULL);
+						if ( rc != LDAP_SUCCESS ) {
+							fprintf( stderr,
+								"%s: line %d: bad DN \"%s\"\n",
+								fname, lineno, bv.bv_val );
+							acl_usage();
+						}
+						free(bv.bv_val);
+					} else {
+						b->a_dn_pat = bv;
+					}
+					b->a_dn_style = sty;
+					b->a_dn_expand = expand;
+					continue;
+				}
 
-	access = 0;
-	if ( strncasecmp( str, "self", 4 ) == 0 ) {
-		access |= ACL_SELF;
-		str += 4;
-	}
+				if ( strcasecmp( left, "dnattr" ) == 0 ) {
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
 
-	if ( strcasecmp( str, "none" ) == 0 ) {
-		access |= ACL_NONE;
-	} else if ( strcasecmp( str, "compare" ) == 0 ) {
-		access |= ACL_COMPARE;
-	} else if ( strcasecmp( str, "search" ) == 0 ) {
-		access |= ACL_SEARCH;
-	} else if ( strcasecmp( str, "read" ) == 0 ) {
-		access |= ACL_READ;
-	} else if ( strcasecmp( str, "write" ) == 0 ) {
-		access |= ACL_WRITE;
-	} else {
-		access = -1;
-	}
+					if( b->a_dn_at != NULL ) {
+						fprintf( stderr,
+							"%s: line %d: dnattr already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
 
-	return( access );
-}
+					rc = slap_str2ad( right, &b->a_dn_at, &text );
 
-static void
-acl_usage( void )
-{
-	fprintf( stderr, "\n<access clause> ::= access to <what> [ by <who> <access> ]+ \n" );
-	fprintf( stderr, "<what> ::= * | [dn=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n" );
-	fprintf( stderr, "<attrlist> ::= <attr> | <attr> , <attrlist>\n" );
-	fprintf( stderr, "<attr> ::= <attrname> | entry | children\n" );
-	fprintf( stderr, "<who> ::= * | self | dn=<regex> | addr=<regex> |\n\tdomain=<regex> | dnattr=<dnattrname>\n" );
-	fprintf( stderr, "<access> ::= [self]{none | compare | search | read | write }\n" );
-	exit( 1 );
-}
+					if( rc != LDAP_SUCCESS ) {
+						fprintf( stderr,
+							"%s: line %d: dnattr \"%s\": %s\n",
+							fname, lineno, right, text );
+						acl_usage();
+					}
 
-static void
-split(
-    char	*line,
-    int		splitchar,
-    char	**left,
-    char	**right
-)
-{
-	*left = line;
-	if ( (*right = strchr( line, splitchar )) != NULL ) {
-		*((*right)++) = '\0';
-	}
-}
 
-static void
-access_append( struct access **l, struct access *a )
-{
-	for ( ; *l != NULL; l = &(*l)->a_next )
-		;	/* NULL */
+					if( !is_at_syntax( b->a_dn_at->ad_type,
+						SLAPD_DN_SYNTAX ) &&
+						!is_at_syntax( b->a_dn_at->ad_type,
+						SLAPD_NAMEUID_SYNTAX ))
+					{
+						fprintf( stderr,
+							"%s: line %d: dnattr \"%s\": "
+							"inappropriate syntax: %s\n",
+							fname, lineno, right,
+							b->a_dn_at->ad_type->sat_syntax_oid );
+						acl_usage();
+					}
 
-	*l = a;
-}
+					if( b->a_dn_at->ad_type->sat_equality == NULL )
+					{
+						fprintf( stderr,
+							"%s: line %d: dnattr \"%s\": "
+							"inappropriate matching (no EQUALITY)\n",
+							fname, lineno, right );
+						acl_usage();
+					}
 
-static void
-acl_append( struct acl **l, struct acl *a )
-{
-	for ( ; *l != NULL; l = &(*l)->acl_next )
-		;	/* NULL */
+					continue;
+				}
 
-	*l = a;
-}
+				if ( strncasecmp( left, "group", sizeof("group")-1 ) == 0 ) {
+					char *name = NULL;
+					char *value = NULL;
 
-#ifdef LDAP_DEBUG
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
 
-static void
-print_access( struct access *b )
-{
-	fprintf( stderr, "\tby" );
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
 
-	if ( b->a_dnpat != NULL ) {
-		fprintf( stderr, " dn=%s", b->a_dnpat );
-	} else if ( b->a_addrpat != NULL ) {
-		fprintf( stderr, " addr=%s", b->a_addrpat );
-	} else if ( b->a_domainpat != NULL ) {
-		fprintf( stderr, " domain=%s", b->a_domainpat );
-	} else if ( b->a_dnattr != NULL ) {
-		fprintf( stderr, " dnattr=%s", b->a_dnattr );
-	}
-#ifdef SLAPD_ACLGROUPS
-        else if ( b->a_group != NULL ) {
-                fprintf( stderr, " group: %s", b->a_group );
-                if ( b->a_objectclassvalue )
-                        fprintf( stderr, " objectClassValue: %s", b->a_objectclassvalue );
-                if ( b->a_groupattrname )
-                        fprintf( stderr, " groupAttrName: %s", b->a_groupattrname );
-        }
-#endif
-	fprintf( stderr, "\n" );
-}
+					if( b->a_group_pat.bv_len ) {
+						fprintf( stderr,
+							"%s: line %d: group pattern already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
 
-static void
-print_acl( struct acl *a )
-{
-	int		i;
-	struct access	*b;
+					/* format of string is "group/objectClassValue/groupAttrName" */
+					if ((value = strchr(left, '/')) != NULL) {
+						*value++ = '\0';
+						if (*value
+							&& (name = strchr(value, '/')) != NULL)
+						{
+							*name++ = '\0';
+						}
+					}
 
-	if ( a == NULL ) {
-		fprintf( stderr, "NULL\n" );
-	}
-	fprintf( stderr, "ACL: access to" );
-	if ( a->acl_filter != NULL ) {
-		fprintf(  stderr," filter=" );
-		filter_print( a->acl_filter );
-	}
-	if ( a->acl_dnpat != NULL ) {
-		fprintf( stderr, " dn=" );
-		fprintf( stderr, a->acl_dnpat );
-	}
-	if ( a->acl_attrs != NULL ) {
-		int	first = 1;
+					b->a_group_style = sty;
+					if (sty == ACL_STYLE_REGEX) {
+						acl_regex_normalized_dn( right, &bv );
+						if ( !ber_bvccmp( &bv, '*' ) ) {
+							regtest(fname, lineno, bv.bv_val);
+						}
+						b->a_group_pat = bv;
+					} else {
+						ber_str2bv( right, 0, 0, &bv );
+						rc = dnNormalize2( NULL, &bv, &b->a_group_pat, NULL );
+						if ( rc != LDAP_SUCCESS ) {
+							fprintf( stderr,
+								"%s: line %d: bad DN \"%s\"\n",
+								fname, lineno, right );
+							acl_usage();
+						}
+					}
+
+					if (value && *value) {
+						b->a_group_oc = oc_find( value );
+						*--value = '/';
+
+						if( b->a_group_oc == NULL ) {
+							fprintf( stderr,
+								"%s: line %d: group objectclass "
+								"\"%s\" unknown\n",
+								fname, lineno, value );
+							acl_usage();
+						}
+					} else {
+						b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
+
+						if( b->a_group_oc == NULL ) {
+							fprintf( stderr,
+								"%s: line %d: group default objectclass "
+								"\"%s\" unknown\n",
+								fname, lineno, SLAPD_GROUP_CLASS );
+							acl_usage();
+						}
+					}
+
+					if( is_object_subclass( slap_schema.si_oc_referral,
+						b->a_group_oc ))
+					{
+						fprintf( stderr,
+							"%s: line %d: group objectclass \"%s\" "
+							"is subclass of referral\n",
+							fname, lineno, value );
+						acl_usage();
+					}
+
+					if( is_object_subclass( slap_schema.si_oc_alias,
+						b->a_group_oc ))
+					{
+						fprintf( stderr,
+							"%s: line %d: group objectclass \"%s\" "
+							"is subclass of alias\n",
+							fname, lineno, value );
+						acl_usage();
+					}
+
+					if (name && *name) {
+						rc = slap_str2ad( name, &b->a_group_at, &text );
+
+						if( rc != LDAP_SUCCESS ) {
+							fprintf( stderr,
+								"%s: line %d: group \"%s\": %s\n",
+								fname, lineno, right, text );
+							acl_usage();
+						}
+						*--name = '/';
+					} else {
+						rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
+
+						if( rc != LDAP_SUCCESS ) {
+							fprintf( stderr,
+								"%s: line %d: group \"%s\": %s\n",
+								fname, lineno, SLAPD_GROUP_ATTR, text );
+							acl_usage();
+						}
+					}
+
+					if( !is_at_syntax( b->a_group_at->ad_type,
+						SLAPD_DN_SYNTAX ) &&
+					    !is_at_syntax( b->a_group_at->ad_type,
+						SLAPD_NAMEUID_SYNTAX ) )
+					{
+						fprintf( stderr,
+							"%s: line %d: group \"%s\": inappropriate syntax: %s\n",
+							fname, lineno, right,
+							b->a_group_at->ad_type->sat_syntax_oid );
+						acl_usage();
+					}
+
+
+					{
+						int rc;
+						struct berval vals[2];
+
+						vals[0].bv_val = b->a_group_oc->soc_oid;
+						vals[0].bv_len = strlen(vals[0].bv_val);
+						vals[1].bv_val = NULL;
+
+
+						rc = oc_check_allowed( b->a_group_at->ad_type, vals, NULL );
+
+						if( rc != 0 ) {
+							fprintf( stderr,
+								"%s: line %d: group: \"%s\" not allowed by \"%s\"\n",
+								fname, lineno,
+								b->a_group_at->ad_cname.bv_val,
+								b->a_group_oc->soc_oid );
+							acl_usage();
+						}
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "peername" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
+
+					if( b->a_peername_pat.bv_len ) {
+						fprintf( stderr,
+							"%s: line %d: peername pattern already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_peername_style = sty;
+					if (sty == ACL_STYLE_REGEX) {
+						acl_regex_normalized_dn( right, &bv );
+						if ( !ber_bvccmp( &bv, '*' ) ) {
+							regtest(fname, lineno, bv.bv_val);
+						}
+						b->a_peername_pat = bv;
+					} else {
+						ber_str2bv( right, 0, 1, &b->a_peername_pat );
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "sockname" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
+
+					if( b->a_sockname_pat.bv_len ) {
+						fprintf( stderr,
+							"%s: line %d: sockname pattern already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_sockname_style = sty;
+					if (sty == ACL_STYLE_REGEX) {
+						acl_regex_normalized_dn( right, &bv );
+						if ( !ber_bvccmp( &bv, '*' ) ) {
+							regtest(fname, lineno, bv.bv_val);
+						}
+						b->a_sockname_pat = bv;
+					} else {
+						ber_str2bv( right, 0, 1, &b->a_sockname_pat );
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "domain" ) == 0 ) {
+					switch ( sty ) {
+					case ACL_STYLE_REGEX:
+					case ACL_STYLE_BASE:
+					case ACL_STYLE_SUBTREE:
+						break;
+
+					default:
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
+
+					if( b->a_domain_pat.bv_len ) {
+						fprintf( stderr,
+							"%s: line %d: domain pattern already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_domain_style = sty;
+					b->a_domain_expand = expand;
+					if (sty == ACL_STYLE_REGEX) {
+						acl_regex_normalized_dn( right, &bv );
+						if ( !ber_bvccmp( &bv, '*' ) ) {
+							regtest(fname, lineno, bv.bv_val);
+						}
+						b->a_domain_pat = bv;
+					} else {
+						ber_str2bv( right, 0, 1, &b->a_domain_pat );
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "sockurl" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if ( right == NULL || right[ 0 ] == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: missing \"=\" in (or value after) \"%s\" in by clause\n",
+							fname, lineno, left );
+						acl_usage();
+					}
+
+					if( b->a_sockurl_pat.bv_len ) {
+						fprintf( stderr,
+							"%s: line %d: sockurl pattern already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_sockurl_style = sty;
+					if (sty == ACL_STYLE_REGEX) {
+						acl_regex_normalized_dn( right, &bv );
+						if ( !ber_bvccmp( &bv, '*' ) ) {
+							regtest(fname, lineno, bv.bv_val);
+						}
+						b->a_sockurl_pat = bv;
+					} else {
+						ber_str2bv( right, 0, 1, &b->a_sockurl_pat );
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "set" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_set_pat.bv_len != 0 ) {
+						fprintf( stderr,
+							"%s: line %d: set attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: no set is defined\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_set_style = sty;
+					ber_str2bv( right, 0, 1, &b->a_set_pat );
+
+					continue;
+				}
+
+#ifdef SLAPD_ACI_ENABLED
+				if ( strcasecmp( left, "aci" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_aci_at != NULL ) {
+						fprintf( stderr,
+							"%s: line %d: aci attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right != NULL && *right != '\0' ) {
+						rc = slap_str2ad( right, &b->a_aci_at, &text );
+
+						if( rc != LDAP_SUCCESS ) {
+							fprintf( stderr,
+								"%s: line %d: aci \"%s\": %s\n",
+								fname, lineno, right, text );
+							acl_usage();
+						}
+
+					} else {
+						b->a_aci_at = slap_schema.si_ad_aci;
+					}
+
+					if( !is_at_syntax( b->a_aci_at->ad_type,
+						SLAPD_ACI_SYNTAX) )
+					{
+						fprintf( stderr,
+							"%s: line %d: aci \"%s\": inappropriate syntax: %s\n",
+							fname, lineno, right,
+							b->a_aci_at->ad_type->sat_syntax_oid );
+						acl_usage();
+					}
+
+					continue;
+				}
+#endif /* SLAPD_ACI_ENABLED */
+
+				if ( strcasecmp( left, "ssf" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_authz.sai_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: ssf attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: no ssf is defined\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_authz.sai_ssf = atoi( right );
+
+					if( !b->a_authz.sai_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: invalid ssf value (%s)\n",
+							fname, lineno, right );
+						acl_usage();
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_authz.sai_transport_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: transport_ssf attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: no transport_ssf is defined\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_authz.sai_transport_ssf = atoi( right );
+
+					if( !b->a_authz.sai_transport_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: invalid transport_ssf value (%s)\n",
+							fname, lineno, right );
+						acl_usage();
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_authz.sai_tls_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: tls_ssf attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: no tls_ssf is defined\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_authz.sai_tls_ssf = atoi( right );
+
+					if( !b->a_authz.sai_tls_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: invalid tls_ssf value (%s)\n",
+							fname, lineno, right );
+						acl_usage();
+					}
+					continue;
+				}
+
+				if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
+					if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
+						fprintf( stderr,
+							"%s: line %d: inappropriate style \"%s\" in by clause\n",
+						    fname, lineno, style );
+						acl_usage();
+					}
+
+					if( b->a_authz.sai_sasl_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: sasl_ssf attribute already specified.\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					if ( right == NULL || *right == '\0' ) {
+						fprintf( stderr,
+							"%s: line %d: no sasl_ssf is defined\n",
+							fname, lineno );
+						acl_usage();
+					}
+
+					b->a_authz.sai_sasl_ssf = atoi( right );
+
+					if( !b->a_authz.sai_sasl_ssf ) {
+						fprintf( stderr,
+							"%s: line %d: invalid sasl_ssf value (%s)\n",
+							fname, lineno, right );
+						acl_usage();
+					}
+					continue;
+				}
+
+				if( right != NULL ) {
+					/* unsplit */
+					right[-1] = '=';
+				}
+				break;
+			}
+
+			if( i == argc || ( strcasecmp( left, "stop" ) == 0 )) { 
+				/* out of arguments or plain stop */
+
+				ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
+				b->a_type = ACL_STOP;
+
+				access_append( &a->acl_access, b );
+				continue;
+			}
+
+			if( strcasecmp( left, "continue" ) == 0 ) {
+				/* plain continue */
+
+				ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
+				b->a_type = ACL_CONTINUE;
+
+				access_append( &a->acl_access, b );
+				continue;
+			}
+
+			if( strcasecmp( left, "break" ) == 0 ) {
+				/* plain continue */
+
+				ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
+				b->a_type = ACL_BREAK;
+
+				access_append( &a->acl_access, b );
+				continue;
+			}
+
+			if ( strcasecmp( left, "by" ) == 0 ) {
+				/* we've gone too far */
+				--i;
+				ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
+				b->a_type = ACL_STOP;
+
+				access_append( &a->acl_access, b );
+				continue;
+			}
+
+			/* get <access> */
+			if( strncasecmp( left, "self", 4 ) == 0 ) {
+				b->a_dn_self = 1;
+				ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
+
+			} else {
+				ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
+			}
+
+			if( ACL_IS_INVALID( b->a_access_mask ) ) {
+				fprintf( stderr,
+					"%s: line %d: expecting <access> got \"%s\"\n",
+					fname, lineno, left );
+				acl_usage();
+			}
+
+			b->a_type = ACL_STOP;
+
+			if( ++i == argc ) {
+				/* out of arguments or plain stop */
+				access_append( &a->acl_access, b );
+				continue;
+			}
+
+			if( strcasecmp( argv[i], "continue" ) == 0 ) {
+				/* plain continue */
+				b->a_type = ACL_CONTINUE;
+
+			} else if( strcasecmp( argv[i], "break" ) == 0 ) {
+				/* plain continue */
+				b->a_type = ACL_BREAK;
+
+			} else if ( strcasecmp( argv[i], "stop" ) != 0 ) {
+				/* gone to far */
+				i--;
+			}
+
+			access_append( &a->acl_access, b );
+
+		} else {
+			fprintf( stderr,
+		    "%s: line %d: expecting \"to\" or \"by\" got \"%s\"\n",
+			    fname, lineno, argv[i] );
+			acl_usage();
+		}
+	}
+
+	/* if we have no real access clause, complain and do nothing */
+	if ( a == NULL ) {
+			fprintf( stderr,
+				"%s: line %d: warning: no access clause(s) specified in access line\n",
+			    fname, lineno );
+
+	} else {
+#ifdef LDAP_DEBUG
+		if (ldap_debug & LDAP_DEBUG_ACL)
+			print_acl(be, a);
+#endif
+	
+		if ( a->acl_access == NULL ) {
+			fprintf( stderr,
+		    	"%s: line %d: warning: no by clause(s) specified in access line\n",
+			    fname, lineno );
+		}
+
+		if ( be != NULL ) {
+			acl_append( &be->be_acl, a );
+		} else {
+			acl_append( &global_acl, a );
+		}
+	}
+}
+
+char *
+accessmask2str( slap_mask_t mask, char *buf )
+{
+	int none=1;
+	char *ptr = buf;
+
+	assert( buf != NULL );
+
+	if ( ACL_IS_INVALID( mask ) ) {
+		return "invalid";
+	}
+
+	buf[0] = '\0';
+
+	if ( ACL_IS_LEVEL( mask ) ) {
+		if ( ACL_LVL_IS_NONE(mask) ) {
+			ptr = lutil_strcopy( ptr, "none" );
+
+		} else if ( ACL_LVL_IS_AUTH(mask) ) {
+			ptr = lutil_strcopy( ptr, "auth" );
+
+		} else if ( ACL_LVL_IS_COMPARE(mask) ) {
+			ptr = lutil_strcopy( ptr, "compare" );
+
+		} else if ( ACL_LVL_IS_SEARCH(mask) ) {
+			ptr = lutil_strcopy( ptr, "search" );
+
+		} else if ( ACL_LVL_IS_READ(mask) ) {
+			ptr = lutil_strcopy( ptr, "read" );
+
+		} else if ( ACL_LVL_IS_WRITE(mask) ) {
+			ptr = lutil_strcopy( ptr, "write" );
+		} else {
+			ptr = lutil_strcopy( ptr, "unknown" );
+		}
+		
+		*ptr++ = '(';
+	}
+
+	if( ACL_IS_ADDITIVE( mask ) ) {
+		*ptr++ = '+';
+
+	} else if( ACL_IS_SUBTRACTIVE( mask ) ) {
+		*ptr++ = '-';
+
+	} else {
+		*ptr++ = '=';
+	}
+
+	if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
+		none = 0;
+		*ptr++ = 'w';
+	} 
+
+	if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
+		none = 0;
+		*ptr++ = 'r';
+	} 
+
+	if ( ACL_PRIV_ISSET(mask, ACL_PRIV_SEARCH) ) {
+		none = 0;
+		*ptr++ = 's';
+	} 
+
+	if ( ACL_PRIV_ISSET(mask, ACL_PRIV_COMPARE) ) {
+		none = 0;
+		*ptr++ = 'c';
+	} 
+
+	if ( ACL_PRIV_ISSET(mask, ACL_PRIV_AUTH) ) {
+		none = 0;
+		*ptr++ = 'x';
+	} 
+
+	if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
+		none = 0;
+		*ptr++ = 'n';
+	} 
+
+	if ( none ) {
+		*ptr++ = '0';
+	}
+
+	if ( ACL_IS_LEVEL( mask ) ) {
+		*ptr++ = ')';
+	}
+
+	*ptr = '\0';
+
+	return buf;
+}
+
+slap_mask_t
+str2accessmask( const char *str )
+{
+	slap_mask_t	mask;
+
+	if( !ASCII_ALPHA(str[0]) ) {
+		int i;
+
+		if ( str[0] == '=' ) {
+			ACL_INIT(mask);
+
+		} else if( str[0] == '+' ) {
+			ACL_PRIV_ASSIGN(mask, ACL_PRIV_ADDITIVE);
+
+		} else if( str[0] == '-' ) {
+			ACL_PRIV_ASSIGN(mask, ACL_PRIV_SUBSTRACTIVE);
+
+		} else {
+			ACL_INVALIDATE(mask);
+			return mask;
+		}
+
+		for( i=1; str[i] != '\0'; i++ ) {
+			if( TOLOWER((unsigned char) str[i]) == 'w' ) {
+				ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
+
+			} else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
+				ACL_PRIV_SET(mask, ACL_PRIV_READ);
+
+			} else if( TOLOWER((unsigned char) str[i]) == 's' ) {
+				ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
+
+			} else if( TOLOWER((unsigned char) str[i]) == 'c' ) {
+				ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
+
+			} else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
+				ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
+
+			} else if( str[i] != '0' ) {
+				ACL_INVALIDATE(mask);
+				return mask;
+			}
+		}
+
+		return mask;
+	}
+
+	if ( strcasecmp( str, "none" ) == 0 ) {
+		ACL_LVL_ASSIGN_NONE(mask);
+
+	} else if ( strcasecmp( str, "auth" ) == 0 ) {
+		ACL_LVL_ASSIGN_AUTH(mask);
+
+	} else if ( strcasecmp( str, "compare" ) == 0 ) {
+		ACL_LVL_ASSIGN_COMPARE(mask);
+
+	} else if ( strcasecmp( str, "search" ) == 0 ) {
+		ACL_LVL_ASSIGN_SEARCH(mask);
+
+	} else if ( strcasecmp( str, "read" ) == 0 ) {
+		ACL_LVL_ASSIGN_READ(mask);
+
+	} else if ( strcasecmp( str, "write" ) == 0 ) {
+		ACL_LVL_ASSIGN_WRITE(mask);
+
+	} else {
+		ACL_INVALIDATE( mask );
+	}
+
+	return mask;
+}
+
+static void
+acl_usage( void )
+{
+	fprintf( stderr, "\n"
+		"<access clause> ::= access to <what> "
+				"[ by <who> <access> [ <control> ] ]+ \n"
+		"<what> ::= * | [dn[.<dnstyle>]=<regex>] [filter=<ldapfilter>] [attrs=<attrlist>]\n"
+		"<attrlist> ::= <attr> | <attr> , <attrlist>\n"
+		"<attr> ::= <attrname> | entry | children\n"
+		"<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<regex> ]\n"
+			"\t[dnattr=<attrname>]\n"
+			"\t[group[/<objectclass>[/<attrname>]][.<style>]=<regex>]\n"
+			"\t[peername[.<style>]=<regex>] [sockname[.<style>]=<regex>]\n"
+			"\t[domain[.<style>]=<regex>] [sockurl[.<style>]=<regex>]\n"
+#ifdef SLAPD_ACI_ENABLED
+			"\t[aci=<attrname>]\n"
+#endif
+			"\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
+		"<dnstyle> ::= regex | base | exact (alias of base) | one | subtree | children\n"
+		"<style> ::= regex | base | exact (alias of base)\n"
+		"<groupflags> ::= R\n"
+		"<access> ::= [self]{<level>|<priv>}\n"
+		"<level> ::= none | auth | compare | search | read | write\n"
+		"<priv> ::= {=|+|-}{w|r|s|c|x}+\n"
+		"<control> ::= [ stop | continue | break ]\n"
+		);
+	exit( EXIT_FAILURE );
+}
+
+/*
+ * Set pattern to a "normalized" DN from src.
+ * At present it simply eats the (optional) space after 
+ * a RDN separator (,)
+ * Eventually will evolve in a more complete normalization
+ */
+static void
+acl_regex_normalized_dn(
+	const char *src,
+	struct berval *pattern
+)
+{
+	char *str, *p;
+	ber_len_t len;
+
+	str = ch_strdup( src );
+	len = strlen( src );
+
+	for ( p = str; p && p[ 0 ]; p++ ) {
+		/* escape */
+		if ( p[ 0 ] == '\\' && p[ 1 ] ) {
+			/* 
+			 * if escaping a hex pair we should
+			 * increment p twice; however, in that 
+			 * case the second hex number does 
+			 * no harm
+			 */
+			p++;
+		}
+
+		if ( p[ 0 ] == ',' ) {
+			if ( p[ 1 ] == ' ' ) {
+				char *q;
+			
+				/*
+				 * too much space should be 
+				 * an error if we are pedantic
+				 */
+				for ( q = &p[ 2 ]; q[ 0 ] == ' '; q++ ) {
+					/* DO NOTHING */ ;
+				}
+				AC_MEMCPY( p+1, q, len-(q-str)+1);
+			}
+		}
+	}
+	pattern->bv_val = str;
+	pattern->bv_len = p-str;
+
+	return;
+}
+
+static void
+split(
+    char	*line,
+    int		splitchar,
+    char	**left,
+    char	**right
+)
+{
+	*left = line;
+	if ( (*right = strchr( line, splitchar )) != NULL ) {
+		*((*right)++) = '\0';
+	}
+}
+
+static void
+access_append( Access **l, Access *a )
+{
+	for ( ; *l != NULL; l = &(*l)->a_next )
+		;	/* NULL */
+
+	*l = a;
+}
+
+void
+acl_append( AccessControl **l, AccessControl *a )
+{
+	for ( ; *l != NULL; l = &(*l)->acl_next )
+		;	/* NULL */
+
+	*l = a;
+}
+
+static void
+access_free( Access *a )
+{
+	if ( a->a_dn_pat.bv_val )
+		free ( a->a_dn_pat.bv_val );
+	if ( a->a_peername_pat.bv_val )
+		free ( a->a_peername_pat.bv_val );
+	if ( a->a_sockname_pat.bv_val )
+		free ( a->a_sockname_pat.bv_val );
+	if ( a->a_domain_pat.bv_val )
+		free ( a->a_domain_pat.bv_val );
+	if ( a->a_sockurl_pat.bv_val )
+		free ( a->a_sockurl_pat.bv_val );
+	if ( a->a_set_pat.bv_len )
+		free ( a->a_set_pat.bv_val );
+	if ( a->a_group_pat.bv_len )
+		free ( a->a_group_pat.bv_val );
+	free( a );
+}
+
+void
+acl_free( AccessControl *a )
+{
+	Access *n;
+	AttributeName *an;
+
+	if ( a->acl_filter )
+		filter_free( a->acl_filter );
+	if ( a->acl_dn_pat.bv_len )
+		free ( a->acl_dn_pat.bv_val );
+	if ( a->acl_attrs ) {
+		for ( an = a->acl_attrs; an->an_name.bv_val; an++ ) {
+			free( an->an_name.bv_val );
+		}
+		free( a->acl_attrs );
+	}
+	for (; a->acl_access; a->acl_access = n) {
+		n = a->acl_access->a_next;
+		access_free( a->acl_access );
+	}
+	free( a );
+}
+
+/* Because backend_startup uses acl_append to tack on the global_acl to
+ * the end of each backend's acl, we cannot just take one argument and
+ * merrily free our way to the end of the list. backend_destroy calls us
+ * with the be_acl in arg1, and global_acl in arg2 to give us a stopping
+ * point. config_destroy calls us with global_acl in arg1 and NULL in
+ * arg2, so we then proceed to polish off the global_acl.
+ */
+void
+acl_destroy( AccessControl *a, AccessControl *end )
+{
+	AccessControl *n;
+
+	for (; a && a!= end; a=n) {
+		n = a->acl_next;
+		acl_free( a );
+	}
+}
+
+char *
+access2str( slap_access_t access )
+{
+	if ( access == ACL_NONE ) {
+		return "none";
+
+	} else if ( access == ACL_AUTH ) {
+		return "auth";
+
+	} else if ( access == ACL_COMPARE ) {
+		return "compare";
+
+	} else if ( access == ACL_SEARCH ) {
+		return "search";
+
+	} else if ( access == ACL_READ ) {
+		return "read";
+
+	} else if ( access == ACL_WRITE ) {
+		return "write";
+	}
+
+	return "unknown";
+}
+
+slap_access_t
+str2access( const char *str )
+{
+	if ( strcasecmp( str, "none" ) == 0 ) {
+		return ACL_NONE;
+
+	} else if ( strcasecmp( str, "auth" ) == 0 ) {
+		return ACL_AUTH;
+
+	} else if ( strcasecmp( str, "compare" ) == 0 ) {
+		return ACL_COMPARE;
+
+	} else if ( strcasecmp( str, "search" ) == 0 ) {
+		return ACL_SEARCH;
+
+	} else if ( strcasecmp( str, "read" ) == 0 ) {
+		return ACL_READ;
+
+	} else if ( strcasecmp( str, "write" ) == 0 ) {
+		return ACL_WRITE;
+	}
+
+	return( ACL_INVALID_ACCESS );
+}
+
+#ifdef LDAP_DEBUG
+
+static char *style_strings[5] = {
+			"regex",
+			"base",
+			"one",
+			"subtree",
+			"children"
+		};
+
+
+static void
+print_access( Access *b )
+{
+	char maskbuf[ACCESSMASK_MAXLEN];
+
+	fprintf( stderr, "\tby" );
+
+	if ( b->a_dn_pat.bv_len != 0 ) {
+		if( strcmp(b->a_dn_pat.bv_val, "*") == 0
+			|| strcmp(b->a_dn_pat.bv_val, "users") == 0 
+			|| strcmp(b->a_dn_pat.bv_val, "anonymous") == 0 
+			|| strcmp(b->a_dn_pat.bv_val, "self") == 0 )
+		{
+			fprintf( stderr, " %s", b->a_dn_pat.bv_val );
+
+		} else {
+			fprintf( stderr, " dn.%s=%s",
+				style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
+		}
+	}
+
+	if ( b->a_dn_at != NULL ) {
+		fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
+	}
+
+	if ( b->a_group_pat.bv_len ) {
+		fprintf( stderr, " group=%s", b->a_group_pat.bv_val );
+
+		if ( b->a_group_oc ) {
+			fprintf( stderr, " objectClass: %s",
+				b->a_group_oc->soc_oclass.oc_oid );
+
+			if ( b->a_group_at ) {
+				fprintf( stderr, " attributeType: %s", b->a_group_at->ad_cname.bv_val );
+			}
+		}
+    }
+
+	if ( b->a_peername_pat.bv_len != 0 ) {
+		fprintf( stderr, " peername=%s", b->a_peername_pat.bv_val );
+	}
+
+	if ( b->a_sockname_pat.bv_len != 0 ) {
+		fprintf( stderr, " sockname=%s", b->a_sockname_pat.bv_val );
+	}
+
+	if ( b->a_domain_pat.bv_len != 0 ) {
+		fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
+	}
+
+	if ( b->a_sockurl_pat.bv_len != 0 ) {
+		fprintf( stderr, " sockurl=%s", b->a_sockurl_pat.bv_val );
+	}
+
+#ifdef SLAPD_ACI_ENABLED
+	if ( b->a_aci_at != NULL ) {
+		fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
+	}
+#endif
+
+	/* Security Strength Factors */
+	if ( b->a_authz.sai_ssf ) {
+		fprintf( stderr, " ssf=%u",
+			b->a_authz.sai_ssf );
+	}
+	if ( b->a_authz.sai_transport_ssf ) {
+		fprintf( stderr, " transport_ssf=%u",
+			b->a_authz.sai_transport_ssf );
+	}
+	if ( b->a_authz.sai_tls_ssf ) {
+		fprintf( stderr, " tls_ssf=%u",
+			b->a_authz.sai_tls_ssf );
+	}
+	if ( b->a_authz.sai_sasl_ssf ) {
+		fprintf( stderr, " sasl_ssf=%u",
+			b->a_authz.sai_sasl_ssf );
+	}
+
+	fprintf( stderr, " %s%s",
+		b->a_dn_self ? "self" : "",
+		accessmask2str( b->a_access_mask, maskbuf ) );
+
+	if( b->a_type == ACL_BREAK ) {
+		fprintf( stderr, " break" );
+
+	} else if( b->a_type == ACL_CONTINUE ) {
+		fprintf( stderr, " continue" );
+
+	} else if( b->a_type != ACL_STOP ) {
+		fprintf( stderr, " unknown-control" );
+	}
+
+	fprintf( stderr, "\n" );
+}
+
+
+static void
+print_acl( Backend *be, AccessControl *a )
+{
+	int		to = 0;
+	Access	*b;
+
+	fprintf( stderr, "%s ACL: access to",
+		be == NULL ? "Global" : "Backend" );
+
+	if ( a->acl_dn_pat.bv_len != 0 ) {
+		to++;
+		fprintf( stderr, " dn.%s=%s\n",
+			style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
+	}
+
+	if ( a->acl_filter != NULL ) {
+		struct berval bv = { 0, NULL };
+		to++;
+		filter2bv( a->acl_filter, &bv );
+		fprintf( stderr, " filter=%s\n", bv.bv_val );
+		ch_free( bv.bv_val );
+	}
+
+	if ( a->acl_attrs != NULL ) {
+		int	first = 1;
+		AttributeName *an;
+		to++;
+
+		fprintf( stderr, " attrs=" );
+		for ( an = a->acl_attrs; an && an->an_name.bv_val; an++ ) {
+			if ( ! first ) {
+				fprintf( stderr, "," );
+			}
+			fputs( an->an_name.bv_val, stderr );
+			first = 0;
+		}
+		fprintf(  stderr, "\n" );
+	}
+
+	if( !to ) {
+		fprintf( stderr, " *\n" );
+	}
+
+	for ( b = a->acl_access; b != NULL; b = b->a_next ) {
+		print_access( b );
+	}
 
-		fprintf( stderr, "\n attrs=" );
-		for ( i = 0; a->acl_attrs[i] != NULL; i++ ) {
-			if ( ! first ) {
-				fprintf( stderr, "," );
-			}
-			fprintf( stderr, a->acl_attrs[i] );
-			first = 0;
-		}
-	}
-	fprintf( stderr, "\n" );
-	for ( b = a->acl_access; b != NULL; b = b->a_next ) {
-		print_access( b );
-	}
 	fprintf( stderr, "\n" );
 }