/* acl.c - routines to parse and check acl's */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#include "portable.h"
#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#ifdef sunos5
-#include "regexpr.h"
-#else
-#include "regex.h"
-#endif
+
+#include <ac/regex.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+
#include "slap.h"
+#include "sets.h"
+#include "lber_pvt.h"
+
+#define ACL_BUF_SIZE 1024 /* use most appropriate size */
-extern Attribute *attr_find();
-extern char *re_comp();
-extern struct acl *global_acl;
-extern int global_default_access;
-extern char *access2str();
-extern char *dn_normalize_case();
-int acl_access_allowed();
-int access_allowed();
-struct acl *acl_get_applicable();
+/*
+ * speed up compares
+ */
+static struct berval
+ aci_bv_entry = BER_BVC("entry"),
+ aci_bv_br_entry = BER_BVC("[entry]"),
+ aci_bv_br_all = BER_BVC("[all]"),
+ aci_bv_access_id = BER_BVC("access-id"),
+ aci_bv_anonymous = BER_BVC("anonymous"),
+ aci_bv_users = BER_BVC("users"),
+ aci_bv_self = BER_BVC("self"),
+ aci_bv_dnattr = BER_BVC("dnattr"),
+ aci_bv_group = BER_BVC("group"),
+ aci_bv_role = BER_BVC("role"),
+ aci_bv_set = BER_BVC("set"),
+ aci_bv_set_ref = BER_BVC("set-ref"),
+ aci_bv_grant = BER_BVC("grant"),
+ aci_bv_deny = BER_BVC("deny"),
+
+ aci_bv_group_class = BER_BVC(SLAPD_GROUP_CLASS),
+ aci_bv_group_attr = BER_BVC(SLAPD_GROUP_ATTR),
+ aci_bv_role_class = BER_BVC(SLAPD_ROLE_CLASS),
+ aci_bv_role_attr = BER_BVC(SLAPD_ROLE_ATTR);
+
+
+static AccessControl * acl_get(
+ AccessControl *ac, int *count,
+ Backend *be, Operation *op,
+ Entry *e,
+ AttributeDescription *desc,
+ int nmatches, regmatch_t *matches );
+
+static slap_control_t acl_mask(
+ AccessControl *ac, slap_mask_t *mask,
+ Backend *be, Connection *conn, Operation *op,
+ Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
+ regmatch_t *matches,
+ int count,
+ AccessControlState *state );
+
+#ifdef SLAPD_ACI_ENABLED
+static int aci_mask(
+ Backend *be,
+ Connection *conn,
+ Operation *op,
+ Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
+ struct berval *aci,
+ regmatch_t *matches,
+ slap_access_t *grant,
+ slap_access_t *deny );
+#endif
+
+static int regex_matches(
+ struct berval *pat, char *str, char *buf, regmatch_t *matches);
+static void string_expand(
+ struct berval *newbuf, struct berval *pattern,
+ char *match, regmatch_t *matches);
-static int regex_matches();
+typedef struct AciSetCookie {
+ Backend *be;
+ Entry *e;
+ Connection *conn;
+ Operation *op;
+} AciSetCookie;
-extern pthread_mutex_t regex_mutex;
+SLAP_SET_GATHER aci_set_gather;
+static int aci_match_set ( struct berval *subj, Backend *be,
+ Entry *e, Connection *conn, Operation *op, int setref );
/*
- * access_allowed - check whether dn is allowed the requested access
+ * access_allowed - check whether op->o_ndn is allowed the requested access
* to entry e, attribute attr, value val. if val is null, access to
- * the whole attribute is assumed (all values). this routine finds
- * the applicable acl and calls acl_access_allowed() to make the
- * decision.
+ * the whole attribute is assumed (all values).
*
- * returns 0 access NOT allowed
- * 1 access allowed
+ * This routine loops through all access controls and calls
+ * acl_mask() on each applicable access control.
+ * The loop exits when a definitive answer is reached or
+ * or no more controls remain.
+ *
+ * returns:
+ * 0 access denied
+ * 1 access granted
*/
int
Connection *conn,
Operation *op,
Entry *e,
- char *attr,
+ AttributeDescription *desc,
struct berval *val,
- char *dn,
- int access
-)
+ slap_access_t access,
+ AccessControlState *state )
{
- int rc;
- struct acl *a;
+ int ret = 1;
+ int count;
+ AccessControl *a;
+#ifdef LDAP_DEBUG
+ char accessmaskbuf[ACCESSMASK_MAXLEN];
+#endif
+ slap_mask_t mask;
+ slap_control_t control;
+ const char *attr;
+ regmatch_t matches[MAXREMATCHES];
- if ( be == NULL ) {
- return( 0 );
+ assert( e != NULL );
+ assert( desc != NULL );
+ assert( access > ACL_NONE );
+
+ attr = desc->ad_cname.bv_val;
+
+ assert( attr != NULL );
+
+ if( state && state->as_recorded ) {
+ if( state->as_recorded & ACL_STATE_RECORDED_NV &&
+ val == NULL )
+ {
+ return state->as_result;
+
+ } else if ( state->as_recorded & ACL_STATE_RECORDED_VD &&
+ val != NULL && state->as_vd_acl == NULL )
+ {
+ return state->as_result;
+ }
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
+ "access_allowed: conn %lu %s access to \"%s\" \"%s\" requested\n",
+ conn ? conn->c_connid : -1, access2str( access ), e->e_dn, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: %s access to \"%s\" \"%s\" requested\n",
+ access2str( access ), e->e_dn, attr );
+#endif
+
+ if ( op == NULL ) {
+ /* no-op call */
+ goto done;
+ }
+
+ if ( be == NULL ) be = &backends[0];
+ assert( be != NULL );
+
+ /* grant database root access */
+ if ( be != NULL && be_isroot( be, &op->o_ndn ) ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_INFO,
+ "access_allowed: conn %lu root access granted\n",
+ conn->c_connid));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= root access granted\n",
+ 0, 0, 0 );
+#endif
+ goto done;
+ }
+
+ /*
+ * no-user-modification operational attributes are ignored
+ * by ACL_WRITE checking as any found here are not provided
+ * by the user
+ */
+ if ( access >= ACL_WRITE && is_at_no_user_mod( desc->ad_type )
+ && desc != slap_schema.si_ad_entry
+ && desc != slap_schema.si_ad_children )
+ {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu NoUserMod Operational attribute: %s access granted\n",
+ conn->c_connid, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:"
+ " %s access granted\n",
+ attr, 0, 0 );
+#endif
+ goto done;
+ }
+
+ /* use backend default access if no backend acls */
+ if( be != NULL && be->be_acl == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu backend default %s access %s to \"%s\"\n",
+ conn->c_connid, access2str( access ),
+ be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: backend default %s access %s to \"%s\"\n",
+ access2str( access ),
+ be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn.bv_val );
+#endif
+ ret = be->be_dfltaccess >= access;
+ goto done;
+
+#ifdef notdef
+ /* be is always non-NULL */
+ /* use global default access if no global acls */
+ } else if ( be == NULL && global_acl == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu global default %s access %s to \"%s\"\n",
+ conn->c_connid, access2str( access ),
+ global_default_access >= access ? "granted" : "denied", op->o_dn.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: global default %s access %s to \"%s\"\n",
+ access2str( access ),
+ global_default_access >= access ? "granted" : "denied", op->o_dn.bv_val );
+#endif
+ ret = global_default_access >= access;
+ goto done;
+#endif
+ }
+
+ ret = 0;
+ control = ACL_BREAK;
+
+ if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )) {
+ assert( state->as_vd_acl != NULL );
+
+ a = state->as_vd_acl;
+ mask = state->as_vd_acl_mask;
+ count = state->as_vd_acl_count;
+ AC_MEMCPY( matches, state->as_vd_acl_matches,
+ sizeof(matches) );
+ goto vd_access;
+
+ } else {
+ a = NULL;
+ ACL_INIT(mask);
+ count = 0;
+ memset(matches, '\0', sizeof(matches));
+ }
+
+ while((a = acl_get( a, &count, be, op, e, desc,
+ MAXREMATCHES, matches )) != NULL)
+ {
+ int i;
+
+ for (i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu match[%d]: %d %d ",
+ conn->c_connid, i,
+ (int)matches[i].rm_so, (int)matches[i].rm_eo ));
+#else
+ Debug( LDAP_DEBUG_ACL, "=> match[%d]: %d %d ", i,
+ (int)matches[i].rm_so, (int)matches[i].rm_eo );
+#endif
+ if( matches[i].rm_so <= matches[0].rm_eo ) {
+ int n;
+ for ( n = matches[i].rm_so; n < matches[i].rm_eo; n++) {
+ Debug( LDAP_DEBUG_ACL, "%c", e->e_ndn[n], 0, 0 );
+ }
+ }
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_ARGS, "\n" ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
+#endif
+ }
+
+vd_access:
+ control = acl_mask( a, &mask, be, conn, op,
+ e, desc, val, matches, count, state );
+
+ if ( control != ACL_BREAK ) {
+ break;
+ }
+
+ memset(matches, '\0', sizeof(matches));
+ }
+
+ if ( ACL_IS_INVALID( mask ) ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu \"%s\" (%s) invalid!\n",
+ conn->c_connid, e->e_dn, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: \"%s\" (%s) invalid!\n",
+ e->e_dn, attr, 0 );
+#endif
+ ACL_INIT(mask);
+
+ } else if ( control == ACL_BREAK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "access_allowed: conn %lu no more rules\n",
+ conn->c_connid ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: no more rules\n", 0, 0, 0);
+#endif
+
+ goto done;
}
- a = acl_get_applicable( be, op, e, attr );
- rc = acl_access_allowed( a, be, conn, e, val, op, access );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
+ "access_allowed: conn %lu %s access %s by %s\n",
+ conn->c_connid,
+ access2str( access ),
+ ACL_GRANT( mask, access ) ? "granted" : "denied",
+ accessmask2str( mask, accessmaskbuf ) ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: %s access %s by %s\n",
+ access2str( access ),
+ ACL_GRANT(mask, access) ? "granted" : "denied",
+ accessmask2str( mask, accessmaskbuf ) );
+#endif
+
+ ret = ACL_GRANT(mask, access);
- return( rc );
+done:
+ if( state != NULL ) {
+ state->as_recorded |= ACL_STATE_RECORDED;
+ state->as_result = ret;
+ }
+ return ret;
}
/*
- * acl_get_applicable - return the acl applicable to entry e, attribute
+ * acl_get - return the acl applicable to entry e, attribute
* attr. the acl returned is suitable for use in subsequent calls to
* acl_access_allowed().
*/
-struct acl *
-acl_get_applicable(
+static AccessControl *
+acl_get(
+ AccessControl *a,
+ int *count,
Backend *be,
- Operation *op,
+ Operation *op,
Entry *e,
- char *attr
-)
+ AttributeDescription *desc,
+ int nmatch,
+ regmatch_t *matches )
{
- int i;
- struct acl *a;
- char *edn;
+ const char *attr;
+ int dnlen, patlen;
- Debug( LDAP_DEBUG_ACL, "=> acl_get: entry (%s) attr (%s)\n", e->e_dn,
- attr, 0 );
+ assert( e != NULL );
+ assert( count != NULL );
+ assert( desc != NULL );
- if ( be_isroot( be, op->o_dn ) ) {
- Debug( LDAP_DEBUG_ACL,
- "<= acl_get: no acl applicable to database root\n", 0, 0,
- 0 );
- return( NULL );
- }
+ attr = desc->ad_cname.bv_val;
- /* check for a backend-specific acl that matches the entry */
- for ( i = 1, a = be->be_acl; a != NULL; a = a->acl_next, i++ ) {
- if ( a->acl_dnpat != NULL ) {
- edn = dn_normalize_case( strdup( e->e_dn ) );
- if ( ! regex_matches( a->acl_dnpat, edn ) ) {
- free( edn );
- continue;
- }
- free( edn );
- }
- if ( a->acl_filter != NULL ) {
- if ( test_filter( NULL, NULL, NULL, e, a->acl_filter )
- != 0 ) {
- continue;
- }
- }
- if ( attr == NULL || a->acl_attrs == NULL ||
- charray_inlist( a->acl_attrs, attr ) ) {
- Debug( LDAP_DEBUG_ACL, "<= acl_get: backend acl #%d\n",
- i, e->e_dn, attr );
- return( a );
+ assert( attr != NULL );
+
+ if( a == NULL ) {
+ if( be == NULL ) {
+ a = global_acl;
+ } else {
+ a = be->be_acl;
}
+
+ assert( a != NULL );
+
+ } else {
+ a = a->acl_next;
}
- /* check for a global acl that matches the entry */
- for ( i = 1, a = global_acl; a != NULL; a = a->acl_next, i++ ) {
- if ( a->acl_dnpat != NULL ) {
- edn = dn_normalize_case( strdup( e->e_dn ) );
- if ( ! regex_matches( a->acl_dnpat, edn ) ) {
- free( edn );
- continue;
+ dnlen = e->e_nname.bv_len;
+
+ for ( ; a != NULL; a = a->acl_next ) {
+ (*count) ++;
+
+ if (a->acl_dn_pat.bv_len != 0) {
+ if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_get: dnpat [%d] %s nsub: %d\n",
+ *count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub ));
+#else
+ Debug( LDAP_DEBUG_ACL, "=> dnpat: [%d] %s nsub: %d\n",
+ *count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub );
+#endif
+ if (regexec(&a->acl_dn_re, e->e_ndn, nmatch, matches, 0))
+ continue;
+
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_get: dn [%d] %s\n",
+ *count, a->acl_dn_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "=> dn: [%d] %s\n",
+ *count, a->acl_dn_pat.bv_val, 0 );
+#endif
+ patlen = a->acl_dn_pat.bv_len;
+ if ( dnlen < patlen )
+ continue;
+
+ if ( a->acl_dn_style == ACL_STYLE_BASE ) {
+ /* base dn -- entire object DN must match */
+ if ( dnlen != patlen )
+ continue;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
+ int rdnlen = -1;
+
+ if ( dnlen <= patlen )
+ continue;
+
+ if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
+ continue;
+
+ rdnlen = dn_rdnlen( NULL, &e->e_nname );
+ if ( rdnlen != dnlen - patlen - 1 )
+ continue;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
+ if ( dnlen > patlen && !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
+ continue;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
+ if ( dnlen <= patlen )
+ continue;
+ if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
+ continue;
+ }
+
+ if ( strcmp( a->acl_dn_pat.bv_val, e->e_ndn + dnlen - patlen ) != 0 )
+ continue;
}
- free( edn );
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_get: [%d] matched\n",
+ *count ));
+#else
+ Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] matched\n",
+ *count, 0, 0 );
+#endif
}
+
if ( a->acl_filter != NULL ) {
- if ( test_filter( NULL, NULL, NULL, e, a->acl_filter )
- != 0 ) {
+ ber_int_t rc = test_filter( NULL, NULL, NULL, e, a->acl_filter );
+ if ( rc != LDAP_COMPARE_TRUE ) {
continue;
}
}
- if ( attr == NULL || a->acl_attrs == NULL || charray_inlist(
- a->acl_attrs, attr ) ) {
- Debug( LDAP_DEBUG_ACL, "<= acl_get: global acl #%d\n",
- i, e->e_dn, attr );
- return( a );
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_get: [%d] check attr %s\n",
+ *count, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n",
+ *count, attr, 0);
+#endif
+ if ( attr == NULL || a->acl_attrs == NULL ||
+ ad_inlist( desc, a->acl_attrs ) )
+ {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_get: [%d] acl %s attr: %s\n",
+ *count, e->e_dn, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= acl_get: [%d] acl %s attr: %s\n",
+ *count, e->e_dn, attr );
+#endif
+ return a;
}
+ matches[0].rm_so = matches[0].rm_eo = -1;
}
- Debug( LDAP_DEBUG_ACL, "<= acl_get: no match\n", 0, 0, 0 );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
+ "acl_get: done.\n" ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= acl_get: done.\n", 0, 0, 0 );
+#endif
return( NULL );
}
/*
- * acl_access_allowed - check whether the given acl allows dn the
+ * Record value-dependent access control state
+ */
+#define ACL_RECORD_VALUE_STATE do { \
+ if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \
+ state->as_recorded |= ACL_STATE_RECORDED_VD; \
+ state->as_vd_acl = a; \
+ AC_MEMCPY( state->as_vd_acl_matches, matches, \
+ sizeof( state->as_vd_acl_matches )) ; \
+ state->as_vd_acl_count = count; \
+ state->as_vd_access = b; \
+ state->as_vd_access_count = i; \
+ } \
+ } while( 0 )
+
+/*
+ * acl_mask - modifies mask based upon the given acl and the
* requested access to entry e, attribute attr, value val. if val
* is null, access to the whole attribute is assumed (all values).
*
* 1 access allowed
*/
-int
-acl_access_allowed(
- struct acl *a,
+static slap_control_t
+acl_mask(
+ AccessControl *a,
+ slap_mask_t *mask,
Backend *be,
- Connection *conn,
+ Connection *conn,
+ Operation *op,
Entry *e,
+ AttributeDescription *desc,
struct berval *val,
- Operation *op,
- int access
-)
+ regmatch_t *matches,
+ int count,
+ AccessControlState *state )
{
- int i;
- char *edn, *odn;
- struct access *b;
- Attribute *at;
- struct berval bv;
- int default_access;
-
- Debug( LDAP_DEBUG_ACL, "=> acl: %s access to value \"%s\" by \"%s\"\n",
- access2str( access ), val ? val->bv_val : "any", op->o_dn ?
- op->o_dn : "" );
-
- if ( be_isroot( be, op->o_dn ) ) {
- Debug( LDAP_DEBUG_ACL, "<= acl: granted to database root\n",
- 0, 0, 0 );
- return( 1 );
- }
+ int i, odnlen, patlen;
+ Access *b;
+#ifdef LDAP_DEBUG
+ char accessmaskbuf[ACCESSMASK_MAXLEN];
+#endif
+ const char *attr;
- default_access = be->be_dfltaccess ? be->be_dfltaccess :
- global_default_access;
- if ( a == NULL ) {
- Debug( LDAP_DEBUG_ACL,
- "<= acl: %s by default (no matching to)\n",
- default_access >= access ? "granted" : "denied", 0, 0 );
- return( default_access >= access );
- }
+ assert( a != NULL );
+ assert( mask != NULL );
+ assert( desc != NULL );
+
+ attr = desc->ad_cname.bv_val;
+
+ assert( attr != NULL );
- odn = NULL;
- if ( op->o_dn != NULL ) {
- odn = dn_normalize_case( strdup( op->o_dn ) );
- bv.bv_val = odn;
- bv.bv_len = strlen( odn );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
+ "acl_mask: conn %lu access to entry \"%s\", attr \"%s\" requested\n",
+ conn->c_connid, e->e_dn, attr ));
+
+ LDAP_LOG(( "acl", LDAP_LEVEL_ARGS,
+ " to %s by \"%s\", (%s) \n",
+ val ? "value" : "all values",
+ op->o_ndn.bv_val ? op->o_ndn.bv_val : "",
+ accessmask2str( *mask, accessmaskbuf ) ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> acl_mask: access to entry \"%s\", attr \"%s\" requested\n",
+ e->e_dn, attr, 0 );
+
+ Debug( LDAP_DEBUG_ACL,
+ "=> acl_mask: to %s by \"%s\", (%s) \n",
+ val ? "value" : "all values",
+ op->o_ndn.bv_val ? op->o_ndn.bv_val : "",
+ accessmask2str( *mask, accessmaskbuf ) );
+#endif
+
+ if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
+ && state->as_vd_acl == a )
+ {
+ b = state->as_vd_access;
+ i = state->as_vd_access_count;
+
+ } else {
+ b = a->acl_access;
+ i = 1;
}
- for ( i = 1, b = a->acl_access; b != NULL; b = b->a_next, i++ ) {
- if ( b->a_dnpat != NULL ) {
+
+ for ( ; b != NULL; b = b->a_next, i++ ) {
+ slap_mask_t oldmask, modmask;
+
+ ACL_INVALIDATE( modmask );
+
+ /* AND <who> clauses */
+ if ( b->a_dn_pat.bv_len != 0 ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_dn_pat: %s\n",
+ conn->c_connid, b->a_dn_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_dn_pat: %s\n",
+ b->a_dn_pat.bv_val, 0, 0);
+#endif
/*
* if access applies to the entry itself, and the
* user is bound as somebody in the same namespace as
* the entry, OR the given dn matches the dn pattern
*/
- if ( strcasecmp( b->a_dnpat, "self" ) == 0 && op->o_dn
- != NULL && *(op->o_dn) && e->e_dn != NULL ) {
- edn = dn_normalize_case( strdup( e->e_dn ) );
- if ( strcasecmp( edn, op->o_dn ) == 0 ) {
- free( edn );
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d access %s\n",
- i, (b->a_access & ~ACL_SELF) >=
- access ? "granted" : "denied", 0 );
-
- return( (b->a_access & ~ACL_SELF)
- >= access );
+ if ( ber_bvcmp( &b->a_dn_pat, &aci_bv_anonymous ) == 0 ) {
+ if ( op->o_ndn.bv_len != 0 ) {
+ continue;
}
- free( edn );
- } else {
- if ( regex_matches( b->a_dnpat, odn ) ) {
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d access %s\n",
- i, (b->a_access & ~ACL_SELF) >= access ?
- "granted" : "denied", 0 );
-
- return( (b->a_access & ~ACL_SELF)
- >= access );
+
+ } else if ( ber_bvcmp( &b->a_dn_pat, &aci_bv_users ) == 0 ) {
+ if ( op->o_ndn.bv_len == 0 ) {
+ continue;
}
- }
- }
- if ( b->a_addrpat != NULL ) {
- if ( regex_matches( b->a_addrpat, conn->c_addr ) ) {
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d access %s\n",
- i, (b->a_access & ~ACL_SELF) >= access ?
- "granted" : "denied", 0 );
- return( (b->a_access & ~ACL_SELF) >= access );
- }
- }
- if ( b->a_domainpat != NULL ) {
- if ( regex_matches( b->a_domainpat, conn->c_domain ) ) {
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d access %s\n",
- i, (b->a_access & ~ACL_SELF) >= access ?
- "granted" : "denied", 0 );
+ } else if ( ber_bvcmp( &b->a_dn_pat, &aci_bv_self ) == 0 ) {
+ if ( op->o_ndn.bv_len == 0 ) {
+ continue;
+ }
+
+ if ( e->e_dn == NULL || !dn_match( &e->e_nname, &op->o_ndn ) ) {
+ continue;
+ }
- return( (b->a_access & ~ACL_SELF) >= access );
- }
- }
- if ( b->a_dnattr != NULL && op->o_dn != NULL ) {
- /* see if asker is listed in dnattr */
- if ( (at = attr_find( e->e_attrs, b->a_dnattr ))
- != NULL && value_find( at->a_vals, &bv,
- at->a_syntax, 3 ) == 0 )
- {
- if ( (b->a_access & ACL_SELF) && (val == NULL
- || value_cmp( &bv, val, at->a_syntax,
- 2 )) ) {
+ } else if ( b->a_dn_style == ACL_STYLE_REGEX ) {
+ if ( !ber_bvccmp( &b->a_dn_pat, '*' ) ) {
+ int ret = regex_matches( &b->a_dn_pat,
+ op->o_ndn.bv_val, e->e_ndn, matches );
+
+ if( ret == 0 ) {
+ continue;
+ }
+ }
+
+ } else {
+ struct berval pat;
+ int got_match = 0;
+
+ if ( e->e_dn == NULL )
continue;
+
+ if ( b->a_dn_expand ) {
+ struct berval bv;
+ char buf[ACL_BUF_SIZE];
+
+ bv.bv_len = sizeof( buf ) - 1;
+ bv.bv_val = buf;
+
+ string_expand(&bv, &b->a_dn_pat,
+ e->e_ndn, matches);
+ if ( dnNormalize2(NULL, &bv, &pat) != LDAP_SUCCESS ) {
+ /* did not expand to a valid dn */
+ continue;
+ }
+ } else {
+ pat = b->a_dn_pat;
}
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d access %s\n",
- i, (b->a_access & ~ACL_SELF) >= access ?
- "granted" : "denied", 0 );
+ patlen = pat.bv_len;
+ odnlen = op->o_ndn.bv_len;
+ if ( odnlen < patlen ) {
+ goto dn_match_cleanup;
- return( (b->a_access & ~ACL_SELF) >= access );
- }
+ }
- /* asker not listed in dnattr - check for self access */
- if ( ! (b->a_access & ACL_SELF) || val == NULL ||
- value_cmp( &bv, val, at->a_syntax, 2 ) != 0 ) {
- continue;
- }
+ if ( b->a_dn_style == ACL_STYLE_BASE ) {
+ /* base dn -- entire object DN must match */
+ if ( odnlen != patlen ) {
+ goto dn_match_cleanup;
+ }
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL,
- "<= acl: matched by clause #%d (self) access %s\n",
- i, (b->a_access & ~ACL_SELF) >= access ? "granted"
- : "denied", 0 );
+ } else if ( b->a_dn_style == ACL_STYLE_ONE ) {
+ int rdnlen = -1;
- return( (b->a_access & ~ACL_SELF) >= access );
- }
- }
+ if ( odnlen <= patlen ) {
+ goto dn_match_cleanup;
+ }
- if ( odn ) free( odn );
- Debug( LDAP_DEBUG_ACL, "<= acl: %s by default (no matching by)\n",
- default_access >= access ? "granted" : "denied", 0, 0 );
+ if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+ goto dn_match_cleanup;
+ }
- return( default_access >= access );
-}
+ rdnlen = dn_rdnlen( NULL, &op->o_ndn );
+ if ( rdnlen != odnlen - patlen - 1 ) {
+ goto dn_match_cleanup;
+ }
-/*
- * acl_check_mods - check access control on the given entry to see if
- * it allows the given modifications by the user associated with op.
- * returns LDAP_SUCCESS mods allowed ok
- * anything else mods not allowed - return is an error
- * code indicating the problem
- */
+ } else if ( b->a_dn_style == ACL_STYLE_SUBTREE ) {
+ if ( odnlen > patlen && !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+ goto dn_match_cleanup;
+ }
-int
-acl_check_mods(
- Backend *be,
- Connection *conn,
- Operation *op,
- Entry *e,
- LDAPMod *mods
-)
-{
- int i;
- struct acl *a;
+ } else if ( b->a_dn_style == ACL_STYLE_CHILDREN ) {
+ if ( odnlen <= patlen ) {
+ goto dn_match_cleanup;
+ }
- for ( ; mods != NULL; mods = mods->mod_next ) {
- if ( strcasecmp( mods->mod_type, "modifiersname" ) == 0 ||
- strcasecmp( mods->mod_type, "modifytimestamp" ) == 0 ) {
- continue;
- }
+ if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+ goto dn_match_cleanup;
+ }
+ }
- a = acl_get_applicable( be, op, e, mods->mod_type );
+ got_match = !strcmp( pat.bv_val, op->o_ndn.bv_val + odnlen - patlen );
- switch ( mods->mod_op & ~LDAP_MOD_BVALUES ) {
- case LDAP_MOD_REPLACE:
- case LDAP_MOD_ADD:
- if ( mods->mod_bvalues == NULL ) {
- break;
- }
- for ( i = 0; mods->mod_bvalues[i] != NULL; i++ ) {
- if ( ! acl_access_allowed( a, be, conn, e,
- mods->mod_bvalues[i], op, ACL_WRITE ) ) {
- return( LDAP_INSUFFICIENT_ACCESS );
+dn_match_cleanup:;
+ if ( pat.bv_val != b->a_dn_pat.bv_val ) {
+ free( pat.bv_val );
}
- }
- break;
- case LDAP_MOD_DELETE:
- if ( mods->mod_bvalues == NULL ) {
- if ( ! acl_access_allowed( a, be, conn, e,
- NULL, op, ACL_WRITE ) ) {
- return( LDAP_INSUFFICIENT_ACCESS );
+ if ( !got_match ) {
+ continue;
}
- break;
}
- for ( i = 0; mods->mod_bvalues[i] != NULL; i++ ) {
- if ( ! acl_access_allowed( a, be, conn, e,
- mods->mod_bvalues[i], op, ACL_WRITE ) ) {
- return( LDAP_INSUFFICIENT_ACCESS );
+ }
+
+ if ( b->a_sockurl_pat.bv_len ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_sockurl_pat: %s\n",
+ conn->c_connid, b->a_sockurl_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_sockurl_pat: %s\n",
+ b->a_sockurl_pat.bv_val, 0, 0 );
+#endif
+
+ if ( !ber_bvccmp( &b->a_sockurl_pat, '*' ) ) {
+ if ( b->a_sockurl_style == ACL_STYLE_REGEX) {
+ if (!regex_matches( &b->a_sockurl_pat, conn->c_listener_url.bv_val,
+ e->e_ndn, matches ) )
+ {
+ continue;
+ }
+ } else {
+ if ( ber_bvstrcasecmp( &b->a_sockurl_pat, &conn->c_listener_url ) != 0 )
+ continue;
}
}
- break;
}
- }
- return( LDAP_SUCCESS );
-}
+ if ( b->a_domain_pat.bv_len ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_domain_pat: %s\n",
+ conn->c_connid, b->a_domain_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_domain_pat: %s\n",
+ b->a_domain_pat.bv_val, 0, 0 );
+#endif
+ if ( !ber_bvccmp( &b->a_domain_pat, '*' ) ) {
+ if ( b->a_domain_style == ACL_STYLE_REGEX) {
+ if (!regex_matches( &b->a_domain_pat, conn->c_peer_domain.bv_val,
+ e->e_ndn, matches ) )
+ {
+ continue;
+ }
+ } else {
+ char buf[ACL_BUF_SIZE];
-#ifdef sunos5
+ struct berval cmp = conn->c_peer_domain;
+ struct berval pat = b->a_domain_pat;
-static int
-regex_matches( char *pat, char *str )
-{
- char *e;
- int rc;
+ if ( b->a_domain_expand ) {
+ struct berval bv;
- if ( (e = compile( pat, NULL, NULL )) == NULL ) {
- Debug( LDAP_DEBUG_ANY,
- "compile( \"%s\", \"%s\") failed\n", pat, str, 0 );
- return( 0 );
- }
- rc = step( str ? str : "", e );
- free( e );
+ bv.bv_len = sizeof(buf);
+ bv.bv_val = buf;
- return( rc );
-}
+ string_expand(&bv, &b->a_domain_pat, e->e_ndn, matches);
+ pat = bv;
+ }
-#else /* sunos5 */
+ if ( b->a_domain_style == ACL_STYLE_SUBTREE ) {
+ int offset = cmp.bv_len - pat.bv_len;
+ if ( offset < 0 ) {
+ continue;
+ }
-static int
-regex_matches( char *pat, char *str )
-{
- char *e;
- int rc;
+ if ( offset == 1 || ( offset > 1 && cmp.bv_val[ offset - 1 ] != '.' ) ) {
+ continue;
+ }
- pthread_mutex_lock( ®ex_mutex );
- if ( (e = re_comp( pat )) != NULL ) {
- Debug( LDAP_DEBUG_ANY,
- "re_comp( \"%s\", \"%s\") failed because (%s)\n", pat, str,
- e );
- pthread_mutex_unlock( ®ex_mutex );
- return( 0 );
- }
- rc = re_exec( str ? str : "" );
- pthread_mutex_unlock( ®ex_mutex );
+ /* trim the domain */
+ cmp.bv_val = &cmp.bv_val[ offset ];
+ cmp.bv_len -= offset;
+ }
+
+ if ( ber_bvstrcasecmp( &pat, &cmp ) != 0 ) {
+ continue;
+ }
+ }
+ }
+ }
+
+ if ( b->a_peername_pat.bv_len ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_perrname_path: %s\n",
+ conn->c_connid, b->a_peername_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_peername_path: %s\n",
+ b->a_peername_pat.bv_val, 0, 0 );
+#endif
+ if ( !ber_bvccmp( &b->a_peername_pat, '*' ) ) {
+ if ( b->a_peername_style == ACL_STYLE_REGEX) {
+ if (!regex_matches( &b->a_peername_pat, conn->c_peer_name.bv_val,
+ e->e_ndn, matches ) )
+ {
+ continue;
+ }
+ } else {
+ if ( ber_bvstrcasecmp( &b->a_peername_pat, &conn->c_peer_name ) != 0 )
+ continue;
+ }
+ }
+ }
+
+ if ( b->a_sockname_pat.bv_len ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_sockname_path: %s\n",
+ conn->c_connid, b->a_sockname_pat.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_sockname_path: %s\n",
+ b->a_sockname_pat.bv_val, 0, 0 );
+#endif
+ if ( !ber_bvccmp( &b->a_sockname_pat, '*' ) ) {
+ if ( b->a_sockname_style == ACL_STYLE_REGEX) {
+ if (!regex_matches( &b->a_sockname_pat, conn->c_sock_name.bv_val,
+ e->e_ndn, matches ) )
+ {
+ continue;
+ }
+ } else {
+ if ( ber_bvstrcasecmp( &b->a_sockname_pat, &conn->c_sock_name ) != 0 )
+ continue;
+ }
+ }
+ }
+
+ if ( b->a_dn_at != NULL ) {
+ Attribute *at;
+ struct berval bv;
+ int rc, match = 0;
+ const char *text;
+ const char *attr = b->a_dn_at->ad_cname.bv_val;
- return( rc == 1 );
+ assert( attr != NULL );
+
+ if ( op->o_ndn.bv_len == 0 ) {
+ continue;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_dn_pat: %s\n",
+ conn->c_connid, attr ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_dn_at: %s\n",
+ attr, 0, 0);
+#endif
+ bv = op->o_ndn;
+
+ /* see if asker is listed in dnattr */
+ for( at = attrs_find( e->e_attrs, b->a_dn_at );
+ at != NULL;
+ at = attrs_find( at->a_next, b->a_dn_at ) )
+ {
+ if( value_find( b->a_dn_at, at->a_vals, &bv ) == 0 ) {
+ /* found it */
+ match = 1;
+ break;
+ }
+ }
+
+ if( match ) {
+ /* have a dnattr match. if this is a self clause then
+ * the target must also match the op dn.
+ */
+ if ( b->a_dn_self ) {
+ /* check if the target is an attribute. */
+ if ( val == NULL )
+ continue;
+ /* target is attribute, check if the attribute value
+ * is the op dn.
+ */
+ rc = value_match( &match, b->a_dn_at,
+ b->a_dn_at->ad_type->sat_equality, 0,
+ val, &bv, &text );
+ /* on match error or no match, fail the ACL clause */
+ if (rc != LDAP_SUCCESS || match != 0 )
+ continue;
+ }
+ } else {
+ /* no dnattr match, check if this is a self clause */
+ if ( ! b->a_dn_self )
+ continue;
+
+ ACL_RECORD_VALUE_STATE;
+
+ /* this is a self clause, check if the target is an
+ * attribute.
+ */
+ if ( val == NULL )
+ continue;
+
+ /* target is attribute, check if the attribute value
+ * is the op dn.
+ */
+ rc = value_match( &match, b->a_dn_at,
+ b->a_dn_at->ad_type->sat_equality, 0,
+ val, &bv, &text );
+
+ /* on match error or no match, fail the ACL clause */
+ if (rc != LDAP_SUCCESS || match != 0 )
+ continue;
+ }
+ }
+
+ if ( b->a_group_pat.bv_len ) {
+ char buf[ACL_BUF_SIZE];
+ struct berval bv;
+ struct berval ndn = { 0, NULL };
+ int rc;
+
+ if ( op->o_ndn.bv_len == 0 ) {
+ continue;
+ }
+
+ bv.bv_len = sizeof(buf) - 1;
+ bv.bv_val = buf;
+
+ /* b->a_group is an unexpanded entry name, expanded it should be an
+ * entry with objectclass group* and we test to see if odn is one of
+ * the values in the attribute group
+ */
+ /* see if asker is listed in dnattr */
+ if ( b->a_group_style == ACL_STYLE_REGEX ) {
+ string_expand(&bv, &b->a_group_pat, e->e_ndn, matches);
+ if ( dnNormalize2(NULL, &bv, &ndn) != LDAP_SUCCESS ) {
+ /* did not expand to a valid dn */
+ continue;
+ }
+ bv = ndn;
+ } else {
+ bv = b->a_group_pat;
+ }
+
+ rc = backend_group(be, conn, op, e, &bv, &op->o_ndn,
+ b->a_group_oc, b->a_group_at);
+ if ( ndn.bv_val )
+ free( ndn.bv_val );
+ if ( rc != 0 ) {
+ continue;
+ }
+ }
+
+ if ( b->a_set_pat.bv_len != 0 ) {
+ if (aci_match_set( &b->a_set_pat, be, e, conn, op, 0 ) == 0) {
+ continue;
+ }
+ }
+
+ if ( b->a_authz.sai_ssf ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_authz.sai_ssf: ACL %u > OP %u\n",
+ conn->c_connid, b->a_authz.sai_ssf, op->o_ssf ));
+#else
+ Debug( LDAP_DEBUG_ACL, "<= check a_authz.sai_ssf: ACL %u > OP %u\n",
+ b->a_authz.sai_ssf, op->o_ssf, 0 );
+#endif
+ if ( b->a_authz.sai_ssf > op->o_ssf ) {
+ continue;
+ }
+ }
+
+ if ( b->a_authz.sai_transport_ssf ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_authz.sai_transport_ssf: ACL %u > OP %u\n",
+ conn->c_connid, b->a_authz.sai_transport_ssf, op->o_transport_ssf ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= check a_authz.sai_transport_ssf: ACL %u > OP %u\n",
+ b->a_authz.sai_transport_ssf, op->o_transport_ssf, 0 );
+#endif
+ if ( b->a_authz.sai_transport_ssf > op->o_transport_ssf ) {
+ continue;
+ }
+ }
+
+ if ( b->a_authz.sai_tls_ssf ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_authz.sai_tls_ssf: ACL %u > OP %u\n",
+ conn->c_connid, b->a_authz.sai_tls_ssf, op->o_tls_ssf ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= check a_authz.sai_tls_ssf: ACL %u > OP %u\n",
+ b->a_authz.sai_tls_ssf, op->o_tls_ssf, 0 );
+#endif
+ if ( b->a_authz.sai_tls_ssf > op->o_tls_ssf ) {
+ continue;
+ }
+ }
+
+ if ( b->a_authz.sai_sasl_ssf ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu check a_authz.sai_sasl_ssf: ACL %u > OP %u\n",
+ conn->c_connid, b->a_authz.sai_sasl_ssf, op->o_sasl_ssf ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= check a_authz.sai_sasl_ssf: ACL %u > OP %u\n",
+ b->a_authz.sai_sasl_ssf, op->o_sasl_ssf, 0 );
+#endif
+ if ( b->a_authz.sai_sasl_ssf > op->o_sasl_ssf ) {
+ continue;
+ }
+ }
+
+#ifdef SLAPD_ACI_ENABLED
+ if ( b->a_aci_at != NULL ) {
+ Attribute *at;
+ slap_access_t grant, deny, tgrant, tdeny;
+
+ /* this case works different from the others above.
+ * since aci's themselves give permissions, we need
+ * to first check b->a_access_mask, the ACL's access level.
+ */
+
+ if ( e->e_nname.bv_len == 0 ) {
+ /* no ACIs in the root DSE */
+ continue;
+ }
+
+ /* first check if the right being requested
+ * is allowed by the ACL clause.
+ */
+ if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) {
+ continue;
+ }
+
+ /* get the aci attribute */
+ at = attr_find( e->e_attrs, b->a_aci_at );
+ if ( at == NULL ) {
+ continue;
+ }
+
+ ACL_RECORD_VALUE_STATE;
+
+ /* start out with nothing granted, nothing denied */
+ ACL_INIT(tgrant);
+ ACL_INIT(tdeny);
+
+ /* the aci is an multi-valued attribute. The
+ * rights are determined by OR'ing the individual
+ * rights given by the acis.
+ */
+ for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) {
+ if (aci_mask( be, conn, op,
+ e, desc, val, &at->a_vals[i],
+ matches, &grant, &deny ) != 0)
+ {
+ tgrant |= grant;
+ tdeny |= deny;
+ }
+ }
+
+ /* remove anything that the ACL clause does not allow */
+ tgrant &= b->a_access_mask & ACL_PRIV_MASK;
+ tdeny &= ACL_PRIV_MASK;
+
+ /* see if we have anything to contribute */
+ if( ACL_IS_INVALID(tgrant) && ACL_IS_INVALID(tdeny) ) {
+ continue;
+ }
+
+ /* this could be improved by changing acl_mask so that it can deal with
+ * by clauses that return grant/deny pairs. Right now, it does either
+ * additive or subtractive rights, but not both at the same time. So,
+ * we need to combine the grant/deny pair into a single rights mask in
+ * a smart way: if either grant or deny is "empty", then we use the
+ * opposite as is, otherwise we remove any denied rights from the grant
+ * rights mask and construct an additive mask.
+ */
+ if (ACL_IS_INVALID(tdeny)) {
+ modmask = tgrant | ACL_PRIV_ADDITIVE;
+
+ } else if (ACL_IS_INVALID(tgrant)) {
+ modmask = tdeny | ACL_PRIV_SUBSTRACTIVE;
+
+ } else {
+ modmask = (tgrant & ~tdeny) | ACL_PRIV_ADDITIVE;
+ }
+
+ } else
+#endif
+ {
+ modmask = b->a_access_mask;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_RESULTS,
+ "acl_mask: conn %lu [%d] applying %s (%s)\n",
+ conn->c_connid, i, accessmask2str( modmask, accessmaskbuf),
+ b->a_type == ACL_CONTINUE ? "continue" : b->a_type == ACL_BREAK
+ ? "break" : "stop" ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= acl_mask: [%d] applying %s (%s)\n",
+ i, accessmask2str( modmask, accessmaskbuf ),
+ b->a_type == ACL_CONTINUE
+ ? "continue"
+ : b->a_type == ACL_BREAK
+ ? "break"
+ : "stop" );
+#endif
+ /* save old mask */
+ oldmask = *mask;
+
+ if( ACL_IS_ADDITIVE(modmask) ) {
+ /* add privs */
+ ACL_PRIV_SET( *mask, modmask );
+
+ /* cleanup */
+ ACL_PRIV_CLR( *mask, ~ACL_PRIV_MASK );
+
+ } else if( ACL_IS_SUBTRACTIVE(modmask) ) {
+ /* substract privs */
+ ACL_PRIV_CLR( *mask, modmask );
+
+ /* cleanup */
+ ACL_PRIV_CLR( *mask, ~ACL_PRIV_MASK );
+
+ } else {
+ /* assign privs */
+ *mask = modmask;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "acl_mask: conn %lu [%d] mask: %s\n",
+ conn->c_connid, i, accessmask2str( *mask, accessmaskbuf) ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= acl_mask: [%d] mask: %s\n",
+ i, accessmask2str(*mask, accessmaskbuf), 0 );
+#endif
+
+ if( b->a_type == ACL_CONTINUE ) {
+ continue;
+
+ } else if ( b->a_type == ACL_BREAK ) {
+ return ACL_BREAK;
+
+ } else {
+ return ACL_STOP;
+ }
+ }
+
+ /* implicit "by * none" clause */
+ ACL_INIT(*mask);
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_RESULTS,
+ "acl_mask: conn %lu no more <who> clauses, returning %d (stop)\n",
+ conn->c_connid, accessmask2str( *mask, accessmaskbuf) ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= acl_mask: no more <who> clauses, returning %s (stop)\n",
+ accessmask2str(*mask, accessmaskbuf), 0, 0 );
+#endif
+ return ACL_STOP;
+}
+
+/*
+ * acl_check_modlist - check access control on the given entry to see if
+ * it allows the given modifications by the user associated with op.
+ * returns 1 if mods allowed ok
+ * 0 mods not allowed
+ */
+
+int
+acl_check_modlist(
+ Backend *be,
+ Connection *conn,
+ Operation *op,
+ Entry *e,
+ Modifications *mlist
+)
+{
+ struct berval *bv;
+
+ assert( be != NULL );
+
+ /* short circuit root database access */
+ if ( be_isroot( be, &op->o_ndn ) ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
+ "acl_check_modlist: conn %lu access granted to root user\n",
+ conn->c_connid ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "<= acl_access_allowed: granted to database root\n",
+ 0, 0, 0 );
+#endif
+ return 1;
+ }
+
+ /* use backend default access if no backend acls */
+ if( be != NULL && be->be_acl == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "acl_check_modlist: conn %lu backend default %s access %s to \"%s\"\n",
+ conn->c_connid, access2str( ACL_WRITE ),
+ be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: backend default %s access %s to \"%s\"\n",
+ access2str( ACL_WRITE ),
+ be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val );
+#endif
+ return be->be_dfltaccess >= ACL_WRITE;
+
+#ifdef notdef
+ /* be is always non-NULL */
+ /* use global default access if no global acls */
+ } else if ( be == NULL && global_acl == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "acl_check_modlist: conn %lu global default %s access %s to \"%s\"\n",
+ conn->c_connid, access2str( ACL_WRITE ),
+ global_default_access >= ACL_WRITE ? "granted" : "denied", op->o_dn ));
+#else
+ Debug( LDAP_DEBUG_ACL,
+ "=> access_allowed: global default %s access %s to \"%s\"\n",
+ access2str( ACL_WRITE ),
+ global_default_access >= ACL_WRITE ? "granted" : "denied", op->o_dn );
+#endif
+ return global_default_access >= ACL_WRITE;
+#endif
+ }
+
+ for ( ; mlist != NULL; mlist = mlist->sml_next ) {
+ static AccessControlState state_init = ACL_STATE_INIT;
+ AccessControlState state;
+
+ /*
+ * no-user-modification operational attributes are ignored
+ * by ACL_WRITE checking as any found here are not provided
+ * by the user
+ */
+ if ( is_at_no_user_mod( mlist->sml_desc->ad_type ) ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "acl_check_modlist: conn %lu no-user-mod %s: modify access granted\n",
+ conn->c_connid, mlist->sml_desc->ad_cname.bv_val ));
+#else
+ Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:"
+ " modify access granted\n",
+ mlist->sml_desc->ad_cname.bv_val, 0, 0 );
+#endif
+ continue;
+ }
+
+ state = state_init;
+
+ switch ( mlist->sml_op ) {
+ case LDAP_MOD_REPLACE:
+ /*
+ * We must check both permission to delete the whole
+ * attribute and permission to add the specific attributes.
+ * This prevents abuse from selfwriters.
+ */
+ if ( ! access_allowed( be, conn, op, e,
+ mlist->sml_desc, NULL, ACL_WRITE, &state ) )
+ {
+ return( 0 );
+ }
+
+ if ( mlist->sml_bvalues == NULL ) break;
+
+ /* fall thru to check value to add */
+
+ case LDAP_MOD_ADD:
+ assert( mlist->sml_bvalues != NULL );
+
+ for ( bv = mlist->sml_bvalues; bv->bv_val != NULL; bv++ ) {
+ if ( ! access_allowed( be, conn, op, e,
+ mlist->sml_desc, bv, ACL_WRITE, &state ) )
+ {
+ return( 0 );
+ }
+ }
+ break;
+
+ case LDAP_MOD_DELETE:
+ if ( mlist->sml_bvalues == NULL ) {
+ if ( ! access_allowed( be, conn, op, e,
+ mlist->sml_desc, NULL, ACL_WRITE, NULL ) )
+ {
+ return( 0 );
+ }
+ break;
+ }
+ for ( bv = mlist->sml_bvalues; bv->bv_val != NULL; bv++ ) {
+ if ( ! access_allowed( be, conn, op, e,
+ mlist->sml_desc, bv, ACL_WRITE, &state ) )
+ {
+ return( 0 );
+ }
+ }
+ break;
+
+ case SLAP_MOD_SOFTADD:
+ /* allow adding attribute via modrdn thru */
+ break;
+
+ default:
+ assert( 0 );
+ return( 0 );
+ }
+ }
+
+ return( 1 );
+}
+
+static int
+aci_get_part(
+ struct berval *list,
+ int ix,
+ char sep,
+ struct berval *bv )
+{
+ int len;
+ char *p;
+
+ if (bv) {
+ bv->bv_len = 0;
+ bv->bv_val = NULL;
+ }
+ len = list->bv_len;
+ p = list->bv_val;
+ while (len >= 0 && --ix >= 0) {
+ while (--len >= 0 && *p++ != sep) ;
+ }
+ while (len >= 0 && *p == ' ') {
+ len--;
+ p++;
+ }
+ if (len < 0)
+ return(-1);
+
+ if (!bv)
+ return(0);
+
+ bv->bv_val = p;
+ while (--len >= 0 && *p != sep) {
+ bv->bv_len++;
+ p++;
+ }
+ while (bv->bv_len > 0 && *--p == ' ')
+ bv->bv_len--;
+ return(bv->bv_len);
+}
+
+BerVarray
+aci_set_gather (void *cookie, struct berval *name, struct berval *attr)
+{
+ AciSetCookie *cp = cookie;
+ BerVarray bvals = NULL;
+ struct berval ndn;
+
+ /* this routine needs to return the bervals instead of
+ * plain strings, since syntax is not known. It should
+ * also return the syntax or some "comparison cookie".
+ */
+
+ if (dnNormalize2(NULL, name, &ndn) == LDAP_SUCCESS) {
+ const char *text;
+ AttributeDescription *desc = NULL;
+ if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) {
+ backend_attribute(cp->be, NULL, NULL,
+ cp->e, &ndn, desc, &bvals);
+ }
+ free(ndn.bv_val);
+ }
+ return(bvals);
+}
+
+static int
+aci_match_set (
+ struct berval *subj,
+ Backend *be,
+ Entry *e,
+ Connection *conn,
+ Operation *op,
+ int setref
+)
+{
+ struct berval set = { 0, NULL };
+ int rc = 0;
+ AciSetCookie cookie;
+
+ if (setref == 0) {
+ ber_dupbv( &set, subj );
+ } else {
+ struct berval subjdn, ndn = { 0, NULL };
+ struct berval setat;
+ BerVarray bvals;
+ const char *text;
+ AttributeDescription *desc = NULL;
+
+ /* format of string is "entry/setAttrName" */
+ if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
+ return(0);
+ }
+
+ if ( aci_get_part(subj, 1, '/', &setat) < 0 ) {
+ setat.bv_val = SLAPD_ACI_SET_ATTR;
+ setat.bv_len = sizeof(SLAPD_ACI_SET_ATTR)-1;
+ }
+
+ if ( setat.bv_val != NULL ) {
+ /*
+ * NOTE: dnNormalize2 honors the ber_len field
+ * as the length of the dn to be normalized
+ */
+ if ( dnNormalize2(NULL, &subjdn, &ndn) == LDAP_SUCCESS
+ && slap_bv2ad(&setat, &desc, &text) == LDAP_SUCCESS )
+ {
+ backend_attribute(be, NULL, NULL, e,
+ &ndn, desc, &bvals);
+ if ( bvals != NULL ) {
+ if ( bvals[0].bv_val != NULL ) {
+ int i;
+ set = bvals[0];
+ bvals[0].bv_val = NULL;
+ for (i=1;bvals[i].bv_val;i++);
+ bvals[0].bv_val = bvals[i-1].bv_val;
+ bvals[i-1].bv_val = NULL;
+ }
+ ber_bvarray_free(bvals);
+ }
+ }
+ if (ndn.bv_val)
+ free(ndn.bv_val);
+ }
+ }
+
+ if (set.bv_val != NULL) {
+ cookie.be = be;
+ cookie.e = e;
+ cookie.conn = conn;
+ cookie.op = op;
+ rc = (slap_set_filter(aci_set_gather, &cookie, &set,
+ &op->o_ndn, &e->e_nname, NULL) > 0);
+ ch_free(set.bv_val);
+ }
+ return(rc);
+}
+
+#ifdef SLAPD_ACI_ENABLED
+static int
+aci_list_map_rights(
+ struct berval *list )
+{
+ struct berval bv;
+ slap_access_t mask;
+ int i;
+
+ ACL_INIT(mask);
+ for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
+ if (bv.bv_len <= 0)
+ continue;
+ switch (*bv.bv_val) {
+ case 'c':
+ ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
+ break;
+ case 's':
+ /* **** NOTE: draft-ietf-ldapext-aci-model-0.3.txt defines
+ * the right 's' to mean "set", but in the examples states
+ * that the right 's' means "search". The latter definition
+ * is used here.
+ */
+ ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
+ break;
+ case 'r':
+ ACL_PRIV_SET(mask, ACL_PRIV_READ);
+ break;
+ case 'w':
+ ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
+ break;
+ case 'x':
+ /* **** NOTE: draft-ietf-ldapext-aci-model-0.3.txt does not
+ * define any equivalent to the AUTH right, so I've just used
+ * 'x' for now.
+ */
+ ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
+ break;
+ default:
+ break;
+ }
+
+ }
+ return(mask);
+}
+
+static int
+aci_list_has_attr(
+ struct berval *list,
+ const struct berval *attr,
+ struct berval *val )
+{
+ struct berval bv, left, right;
+ int i;
+
+ for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
+ if (aci_get_part(&bv, 0, '=', &left) < 0
+ || aci_get_part(&bv, 1, '=', &right) < 0)
+ {
+ if (ber_bvstrcasecmp(attr, &bv) == 0)
+ return(1);
+ } else if (val == NULL) {
+ if (ber_bvstrcasecmp(attr, &left) == 0)
+ return(1);
+ } else {
+ if (ber_bvstrcasecmp(attr, &left) == 0) {
+ /* this is experimental code that implements a
+ * simple (prefix) match of the attribute value.
+ * the ACI draft does not provide for aci's that
+ * apply to specific values, but it would be
+ * nice to have. If the <attr> part of an aci's
+ * rights list is of the form <attr>=<value>,
+ * that means the aci applies only to attrs with
+ * the given value. Furthermore, if the attr is
+ * of the form <attr>=<value>*, then <value> is
+ * treated as a prefix, and the aci applies to
+ * any value with that prefix.
+ *
+ * Ideally, this would allow r.e. matches.
+ */
+ if (aci_get_part(&right, 0, '*', &left) < 0
+ || right.bv_len <= left.bv_len)
+ {
+ if (ber_bvstrcasecmp(val, &right) == 0)
+ return(1);
+ } else if (val->bv_len >= left.bv_len) {
+ if (strncasecmp( val->bv_val, left.bv_val, left.bv_len ) == 0)
+ return(1);
+ }
+ }
+ }
+ }
+ return(0);
+}
+
+static slap_access_t
+aci_list_get_attr_rights(
+ struct berval *list,
+ const struct berval *attr,
+ struct berval *val )
+{
+ struct berval bv;
+ slap_access_t mask;
+ int i;
+
+ /* loop through each rights/attr pair, skip first part (action) */
+ ACL_INIT(mask);
+ for (i = 1; aci_get_part(list, i + 1, ';', &bv) >= 0; i += 2) {
+ if (aci_list_has_attr(&bv, attr, val) == 0)
+ continue;
+ if (aci_get_part(list, i, ';', &bv) < 0)
+ continue;
+ mask |= aci_list_map_rights(&bv);
+ }
+ return(mask);
+}
+
+static int
+aci_list_get_rights(
+ struct berval *list,
+ const struct berval *attr,
+ struct berval *val,
+ slap_access_t *grant,
+ slap_access_t *deny )
+{
+ struct berval perm, actn;
+ slap_access_t *mask;
+ int i, found;
+
+ if (attr == NULL || attr->bv_len == 0
+ || ber_bvstrcasecmp( attr, &aci_bv_entry ) == 0) {
+ attr = &aci_bv_br_entry;
+ }
+
+ found = 0;
+ ACL_INIT(*grant);
+ ACL_INIT(*deny);
+ /* loop through each permissions clause */
+ for (i = 0; aci_get_part(list, i, '$', &perm) >= 0; i++) {
+ if (aci_get_part(&perm, 0, ';', &actn) < 0)
+ continue;
+ if (ber_bvstrcasecmp( &aci_bv_grant, &actn ) == 0) {
+ mask = grant;
+ } else if (ber_bvstrcasecmp( &aci_bv_deny, &actn ) == 0) {
+ mask = deny;
+ } else {
+ continue;
+ }
+
+ found = 1;
+ *mask |= aci_list_get_attr_rights(&perm, attr, val);
+ *mask |= aci_list_get_attr_rights(&perm, &aci_bv_br_all, NULL);
+ }
+ return(found);
+}
+
+static int
+aci_group_member (
+ struct berval *subj,
+ struct berval *defgrpoc,
+ struct berval *defgrpat,
+ Backend *be,
+ Entry *e,
+ Connection *conn,
+ Operation *op,
+ regmatch_t *matches
+)
+{
+ struct berval subjdn;
+ struct berval grpoc;
+ struct berval grpat;
+ ObjectClass *grp_oc = NULL;
+ AttributeDescription *grp_ad = NULL;
+ const char *text;
+ int rc;
+
+ /* format of string is "group/objectClassValue/groupAttrName" */
+ if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
+ return(0);
+ }
+
+ if (aci_get_part(subj, 1, '/', &grpoc) < 0) {
+ grpoc = *defgrpoc;
+ }
+
+ if (aci_get_part(subj, 2, '/', &grpat) < 0) {
+ grpat = *defgrpat;
+ }
+
+ rc = slap_bv2ad( &grpat, &grp_ad, &text );
+ if( rc != LDAP_SUCCESS ) {
+ rc = 0;
+ goto done;
+ }
+ rc = 0;
+
+ grp_oc = oc_bvfind( &grpoc );
+
+ if (grp_oc != NULL && grp_ad != NULL ) {
+ char buf[ACL_BUF_SIZE];
+ struct berval bv, ndn;
+ bv.bv_len = sizeof( buf );
+ bv.bv_val = (char *)&buf;
+ string_expand(&bv, &subjdn, e->e_ndn, matches);
+ if ( dnNormalize2(NULL, &bv, &ndn) == LDAP_SUCCESS ) {
+ rc = (backend_group(be, conn, op, e, &ndn, &op->o_ndn, grp_oc, grp_ad) == 0);
+ free( ndn.bv_val );
+ }
+ }
+
+done:
+ return(rc);
+}
+
+static int
+aci_mask(
+ Backend *be,
+ Connection *conn,
+ Operation *op,
+ Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
+ struct berval *aci,
+ regmatch_t *matches,
+ slap_access_t *grant,
+ slap_access_t *deny
+)
+{
+ struct berval bv, perms, sdn;
+ int rc;
+
+
+ assert( desc->ad_cname.bv_val != NULL );
+
+ /* parse an aci of the form:
+ oid#scope#action;rights;attr;rights;attr$action;rights;attr;rights;attr#dnType#subjectDN
+
+ See draft-ietf-ldapext-aci-model-04.txt section 9.1 for
+ a full description of the format for this attribute.
+
+ For now, this routine only supports scope=entry.
+ */
+
+ /* check that the aci has all 5 components */
+ if (aci_get_part(aci, 4, '#', NULL) < 0)
+ return(0);
+
+ /* check that the aci family is supported */
+ if (aci_get_part(aci, 0, '#', &bv) < 0)
+ return(0);
+
+ /* check that the scope is "entry" */
+ if (aci_get_part(aci, 1, '#', &bv) < 0
+ || ber_bvstrcasecmp( &aci_bv_entry, &bv ) != 0)
+ {
+ return(0);
+ }
+
+ /* get the list of permissions clauses, bail if empty */
+ if (aci_get_part(aci, 2, '#', &perms) <= 0)
+ return(0);
+
+ /* check if any permissions allow desired access */
+ if (aci_list_get_rights(&perms, &desc->ad_cname, val, grant, deny) == 0)
+ return(0);
+
+ /* see if we have a DN match */
+ if (aci_get_part(aci, 3, '#', &bv) < 0)
+ return(0);
+
+ if (aci_get_part(aci, 4, '#', &sdn) < 0)
+ return(0);
+
+ if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) {
+ struct berval ndn;
+ rc = 1;
+ if ( dnNormalize2(NULL, &sdn, &ndn) == LDAP_SUCCESS ) {
+ if (!dn_match( &op->o_ndn, &ndn))
+ rc = 0;
+ free(ndn.bv_val);
+ }
+ return (rc);
+
+ } else if (ber_bvstrcasecmp( &aci_bv_self, &bv ) == 0) {
+ if (dn_match(&op->o_ndn, &e->e_nname))
+ return(1);
+
+ } else if (ber_bvstrcasecmp( &aci_bv_dnattr, &bv ) == 0) {
+ Attribute *at;
+ AttributeDescription *ad = NULL;
+ const char *text;
+
+ rc = slap_bv2ad( &sdn, &ad, &text );
+
+ if( rc != LDAP_SUCCESS ) {
+ return 0;
+ }
+
+ rc = 0;
+
+ bv = op->o_ndn;
+
+ for(at = attrs_find( e->e_attrs, ad );
+ at != NULL;
+ at = attrs_find( at->a_next, ad ) )
+ {
+ if (value_find( ad, at->a_vals, &bv) == 0 ) {
+ rc = 1;
+ break;
+ }
+ }
+
+ return rc;
+
+
+ } else if (ber_bvstrcasecmp( &aci_bv_group, &bv ) == 0) {
+ if (aci_group_member(&sdn, &aci_bv_group_class, &aci_bv_group_attr, be, e, conn, op, matches))
+ return(1);
+
+ } else if (ber_bvstrcasecmp( &aci_bv_role, &bv ) == 0) {
+ if (aci_group_member(&sdn, &aci_bv_role_class, &aci_bv_role_attr, be, e, conn, op, matches))
+ return(1);
+
+ } else if (ber_bvstrcasecmp( &aci_bv_set, &bv ) == 0) {
+ if (aci_match_set(&sdn, be, e, conn, op, 0))
+ return(1);
+
+ } else if (ber_bvstrcasecmp( &aci_bv_set_ref, &bv ) == 0) {
+ if (aci_match_set(&sdn, be, e, conn, op, 1))
+ return(1);
+
+ }
+
+ return(0);
+}
+
+#endif /* SLAPD_ACI_ENABLED */
+
+static void
+string_expand(
+ struct berval *bv,
+ struct berval *pat,
+ char *match,
+ regmatch_t *matches)
+{
+ ber_len_t size;
+ char *sp;
+ char *dp;
+ int flag;
+
+ size = 0;
+ bv->bv_val[0] = '\0';
+ bv->bv_len--; /* leave space for lone $ */
+
+ flag = 0;
+ for ( dp = bv->bv_val, sp = pat->bv_val; size < bv->bv_len &&
+ sp < pat->bv_val + pat->bv_len ; sp++) {
+ /* did we previously see a $ */
+ if ( flag ) {
+ if ( flag == 1 && *sp == '$' ) {
+ *dp++ = '$';
+ size++;
+ flag = 0;
+
+ } else if ( flag == 1 && *sp == '{') {
+ flag = 2;
+
+ } else if ( *sp >= '0' && *sp <= '9' ) {
+ int n;
+ int i;
+ int l;
+
+ n = *sp - '0';
+
+ if ( flag == 2 ) {
+ for ( sp++; *sp != '\0' && *sp != /* { */ '}'; sp++ ) {
+ if ( *sp >= '0' && *sp <= '9' ) {
+ n = 10*n + ( *sp - '0' );
+ }
+ }
+
+ if ( *sp != /* { */ '}' ) {
+ /* error */
+ }
+ }
+
+ if ( n >= MAXREMATCHES ) {
+
+ }
+
+ *dp = '\0';
+ i = matches[n].rm_so;
+ l = matches[n].rm_eo;
+ for ( ; size < bv->bv_len && i < l; size++, i++ ) {
+ *dp++ = match[i];
+ }
+ *dp = '\0';
+
+ flag = 0;
+ }
+ } else {
+ if (*sp == '$') {
+ flag = 1;
+ } else {
+ *dp++ = *sp;
+ size++;
+ }
+ }
+ }
+
+ if ( flag ) {
+ /* must have ended with a single $ */
+ *dp++ = '$';
+ size++;
+ }
+
+ *dp = '\0';
+ bv->bv_len = size;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "string_expand: pattern = %.*s\n", (int)pat->bv_len, pat->bv_val ));
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
+ "string_expand: expanded = %s\n", bv->bv_val ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern: %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
+ Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
+#endif
+}
+
+static int
+regex_matches(
+ struct berval *pat, /* pattern to expand and match against */
+ char *str, /* string to match against pattern */
+ char *buf, /* buffer with $N expansion variables */
+ regmatch_t *matches /* offsets in buffer for $N expansion variables */
+)
+{
+ regex_t re;
+ char newbuf[512];
+ struct berval bv;
+ int rc;
+
+ bv.bv_len = sizeof(newbuf);
+ bv.bv_val = newbuf;
+
+ if(str == NULL) str = "";
+
+ string_expand(&bv, pat, buf, matches);
+ if (( rc = regcomp(&re, newbuf, REG_EXTENDED|REG_ICASE))) {
+ char error[512];
+ regerror(rc, &re, error, sizeof(error));
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_ERR,
+ "regex_matches: compile( \"%s\", \"%s\") failed %s\n",
+ pat->bv_val, str, error ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "compile( \"%s\", \"%s\") failed %s\n",
+ pat->bv_val, str, error );
+#endif
+ return( 0 );
+ }
+
+ rc = regexec(&re, str, 0, NULL, 0);
+ regfree( &re );
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL2,
+ "regex_matches: string: %s\n", str ));
+ LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL2,
+ "regex_matches: rc: %d %s\n",
+ rc, rc ? "matches" : "no matches" ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "=> regex_matches: string: %s\n", str, 0, 0 );
+ Debug( LDAP_DEBUG_TRACE,
+ "=> regex_matches: rc: %d %s\n",
+ rc, !rc ? "matches" : "no matches", 0 );
+#endif
+ return( !rc );
}
-#endif /* sunos5 */
projects / openldap / blobdiff