/* map.c - ldap backend mapping routines */
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- */
-/* This is an altered version */
-/*
- * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
- *
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- *
- * 1. The author is not responsible for the consequences of use of this
- * software, no matter how awful, even if they arise from flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- * explicit claim or by omission. Since few users ever read sources,
- * credits should appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- * misrepresented as being the original software. Since few users
- * ever read sources, credits should appear in the documentation.
- *
- * 4. This notice may not be removed or altered.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
+ * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * Portions Copyright 2000-2003 Pierangelo Masarati.
+ * All rights reserved.
*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
*
- * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
- *
- * This software is being modified by Pierangelo Masarati.
- * The previously reported conditions apply to the modified code as well.
- * Changes in the original code are highlighted where required.
- * Credits for the original code go to the author, Howard Chu.
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
*/
#include "portable.h"
#include "slap.h"
#include "back-ldap.h"
+#undef ldap_debug /* silence a warning in ldap-int.h */
+#include "../../../libraries/libldap/ldap-int.h"
+
int
mapping_cmp ( const void *c1, const void *c2 )
{
*m = mapping;
}
-void
-ldap_back_map ( struct ldapmap *map, struct berval *s, struct berval *bv,
+int
+ldap_back_mapping ( struct ldapmap *map, struct berval *s, struct ldapmapping **m,
int remap )
{
Avlnode *tree;
- struct ldapmapping *mapping, fmapping;
+ struct ldapmapping fmapping;
+
+ assert( m );
- if (remap == BACKLDAP_REMAP)
+ if ( remap == BACKLDAP_REMAP ) {
tree = map->remap;
- else
+ } else {
tree = map->map;
+ }
- bv->bv_len = 0;
- bv->bv_val = NULL;
fmapping.src = *s;
- mapping = (struct ldapmapping *)avl_find( tree, (caddr_t)&fmapping, mapping_cmp );
- if (mapping != NULL) {
- if ( mapping->dst.bv_val )
- *bv = mapping->dst;
- return;
+ *m = (struct ldapmapping *)avl_find( tree, (caddr_t)&fmapping, mapping_cmp );
+ if ( *m == NULL ) {
+ return map->drop_missing;
}
- if (!map->drop_missing)
- *bv = *s;
-
- return;
+ return 0;
}
-char *
-ldap_back_map_filter(
- struct ldapmap *at_map,
- struct ldapmap *oc_map,
- struct berval *f,
- int remap
-)
+void
+ldap_back_map ( struct ldapmap *map, struct berval *s, struct berval *bv,
+ int remap )
{
- char *nf, *p, *q, *s, c;
- int len, extra, plen, in_quote;
- struct berval m, tmp;
-
- if (f == NULL)
- return(NULL);
-
- len = f->bv_len;
- extra = len;
- len *= 2;
- nf = ch_malloc( len + 1 );
- if (nf == NULL)
- return(NULL);
-
- /* this loop assumes the filter ends with one
- * of the delimiter chars -- probably ')'.
- */
-
- s = nf;
- q = NULL;
- in_quote = 0;
- for (p = f->bv_val; (c = *p); p++) {
- if (c == '"') {
- in_quote = !in_quote;
- if (q != NULL) {
- plen = p - q;
- AC_MEMCPY(s, q, plen);
- s += plen;
- q = NULL;
- }
- *s++ = c;
- } else if (in_quote) {
- /* ignore everything in quotes --
- * what about attrs in DNs?
- */
- *s++ = c;
- } else if (c != '(' && c != ')'
- && c != '=' && c != '>' && c != '<'
- && c != '|' && c != '&')
- {
- if (q == NULL)
- q = p;
- } else {
- if (q != NULL) {
- *p = 0;
- tmp.bv_len = p - q;
- tmp.bv_val = q;
- ldap_back_map(at_map, &tmp, &m, remap);
- if (m.bv_val == NULL || m.bv_val[0] == '\0') {
- ldap_back_map(oc_map, &tmp, &m, remap);
- if (m.bv_val == NULL || m.bv_val[0] == '\0') {
- m = tmp;
- }
- }
- extra += p - q;
- plen = m.bv_len;
- extra -= plen;
- if (extra < 0) {
- char *tmpnf;
- while (extra < 0) {
- extra += len;
- len *= 2;
- }
- s -= (long)nf;
- tmpnf = ch_realloc(nf, len + 1);
- if (tmpnf == NULL) {
- ch_free(nf);
- return(NULL);
- }
- nf = tmpnf;
- s += (long)nf;
- }
- AC_MEMCPY(s, m.bv_val, plen);
- s += plen;
- *p = c;
- q = NULL;
- }
- *s++ = c;
+ struct ldapmapping *mapping;
+
+ BER_BVZERO( bv );
+ ( void )ldap_back_mapping( map, s, &mapping, remap );
+ if ( mapping != NULL ) {
+ if ( !BER_BVISNULL( &mapping->dst ) ) {
+ *bv = mapping->dst;
}
+ return;
+ }
+
+ if ( !map->drop_missing ) {
+ *bv = *s;
}
- *s = 0;
- return(nf);
}
-char **
+int
ldap_back_map_attrs(
struct ldapmap *at_map,
AttributeName *an,
- int remap
+ int remap,
+ char ***mapped_attrs
)
{
int i, j;
char **na;
struct berval mapped;
- if (an == NULL)
- return(NULL);
+ if (an == NULL) {
+ *mapped_attrs = NULL;
+ return LDAP_SUCCESS;
+ }
for (i = 0; an[i].an_name.bv_val; i++) {
/* */
}
na = (char **)ch_calloc( i + 1, sizeof(char *) );
- if (na == NULL)
- return(NULL);
+ if (na == NULL) {
+ *mapped_attrs = NULL;
+ return LDAP_NO_MEMORY;
+ }
for (i = j = 0; an[i].an_name.bv_val; i++) {
ldap_back_map(at_map, &an[i].an_name, &mapped, remap);
na[j++] = LDAP_NO_ATTRS;
na[j] = NULL;
- return(na);
+ *mapped_attrs = na;
+ return LDAP_SUCCESS;
+}
+
+int
+map_attr_value(
+ dncookie *dc,
+ AttributeDescription *ad,
+ struct berval *mapped_attr,
+ struct berval *value,
+ struct berval *mapped_value,
+ int remap )
+{
+ struct berval vtmp;
+ int freeval = 0;
+
+ ldap_back_map( &dc->rwmap->rwm_at, &ad->ad_cname, mapped_attr, remap );
+ if ( mapped_attr->bv_val == NULL || mapped_attr->bv_val[0] == '\0') {
+ /*
+ * FIXME: are we sure we need to search oc_map if at_map fails?
+ */
+ ldap_back_map( &dc->rwmap->rwm_oc, &ad->ad_cname, mapped_attr, remap );
+ if ( mapped_attr->bv_val == NULL || mapped_attr->bv_val[0] == '\0' ) {
+ *mapped_attr = ad->ad_cname;
+ }
+ }
+
+ if ( value == NULL ) {
+ return LDAP_SUCCESS;
+ }
+
+ if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
+ {
+ dncookie fdc = *dc;
+
+#ifdef ENABLE_REWRITE
+ fdc.ctx = "searchFilterAttrDN";
+#endif
+
+ switch ( ldap_back_dn_massage( &fdc, value, &vtmp ) ) {
+ case LDAP_SUCCESS:
+ if ( vtmp.bv_val != value->bv_val ) {
+ freeval = 1;
+ }
+ break;
+
+ case LDAP_UNWILLING_TO_PERFORM:
+ case LDAP_OTHER:
+ return LDAP_OTHER;
+ }
+
+ } else if ( ad == slap_schema.si_ad_objectClass || ad == slap_schema.si_ad_structuralObjectClass ) {
+ ldap_back_map( &dc->rwmap->rwm_oc, value, &vtmp, remap );
+ if ( vtmp.bv_val == NULL || vtmp.bv_val[0] == '\0' ) {
+ vtmp = *value;
+ }
+
+ } else {
+ vtmp = *value;
+ }
+
+ filter_escape_value( &vtmp, mapped_value );
+
+ if ( freeval ) {
+ ber_memfree( vtmp.bv_val );
+ }
+
+ return LDAP_SUCCESS;
+}
+
+static int
+ldap_int_back_filter_map_rewrite(
+ dncookie *dc,
+ Filter *f,
+ struct berval *fstr,
+ int remap )
+{
+ int i, rc;
+ Filter *p;
+ struct berval atmp;
+ struct berval vtmp;
+ ber_len_t len;
+
+ if ( f == NULL ) {
+ ber_str2bv( "(?=error)", sizeof("(?=error)")-1, 1, fstr );
+ return LDAP_OTHER;
+ }
+
+ switch ( f->f_choice ) {
+ case LDAP_FILTER_EQUALITY:
+ rc = map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(=)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
+ atmp.bv_val, vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ break;
+
+ case LDAP_FILTER_GE:
+ rc = map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(>=)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
+ atmp.bv_val, vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ break;
+
+ case LDAP_FILTER_LE:
+ rc = map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(<=)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
+ atmp.bv_val, vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ break;
+
+ case LDAP_FILTER_APPROX:
+ rc = map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(~=)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
+ atmp.bv_val, vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ break;
+
+ case LDAP_FILTER_SUBSTRINGS:
+ rc = map_attr_value( dc, f->f_sub_desc, &atmp,
+ NULL, NULL, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ /* cannot be a DN ... */
+
+ fstr->bv_len = atmp.bv_len + ( sizeof("(=*)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 128 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
+ atmp.bv_val );
+
+ if ( f->f_sub_initial.bv_val != NULL ) {
+ len = fstr->bv_len;
+
+ filter_escape_value( &f->f_sub_initial, &vtmp );
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
+
+ snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
+ /* "(attr=" */ "%s*)",
+ vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ }
+
+ if ( f->f_sub_any != NULL ) {
+ for ( i = 0; f->f_sub_any[i].bv_val != NULL; i++ ) {
+ len = fstr->bv_len;
+ filter_escape_value( &f->f_sub_any[i], &vtmp );
+
+ fstr->bv_len += vtmp.bv_len + 1;
+ fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
+
+ snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
+ /* "(attr=[init]*[any*]" */ "%s*)",
+ vtmp.bv_val );
+ ber_memfree( vtmp.bv_val );
+ }
+ }
+
+ if ( f->f_sub_final.bv_val != NULL ) {
+ len = fstr->bv_len;
+
+ filter_escape_value( &f->f_sub_final, &vtmp );
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
+
+ snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
+ /* "(attr=[init*][any*]" */ "%s)",
+ vtmp.bv_val );
+
+ ber_memfree( vtmp.bv_val );
+ }
+
+ break;
+
+ case LDAP_FILTER_PRESENT:
+ rc = map_attr_value( dc, f->f_desc, &atmp,
+ NULL, NULL, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ fstr->bv_len = atmp.bv_len + ( sizeof("(=*)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
+ atmp.bv_val );
+ break;
+
+ case LDAP_FILTER_AND:
+ case LDAP_FILTER_OR:
+ case LDAP_FILTER_NOT:
+ fstr->bv_len = sizeof("(%)") - 1;
+ fstr->bv_val = malloc( fstr->bv_len + 128 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
+ f->f_choice == LDAP_FILTER_AND ? '&' :
+ f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
+
+ for ( p = f->f_list; p != NULL; p = p->f_next ) {
+ len = fstr->bv_len;
+
+ rc = ldap_int_back_filter_map_rewrite( dc, p, &vtmp, remap );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
+
+ snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2,
+ /*"("*/ "%s)", vtmp.bv_val );
+
+ ch_free( vtmp.bv_val );
+ }
+
+ break;
+
+ case LDAP_FILTER_EXT: {
+ if ( f->f_mr_desc ) {
+ rc = map_attr_value( dc, f->f_mr_desc, &atmp,
+ &f->f_mr_value, &vtmp, remap );
+ if ( rc ) {
+ return rc;
+ }
+
+ } else {
+ atmp.bv_len = 0;
+ atmp.bv_val = "";
+
+ filter_escape_value( &f->f_mr_value, &vtmp );
+ }
+
+
+ fstr->bv_len = atmp.bv_len +
+ ( f->f_mr_dnattrs ? sizeof(":dn")-1 : 0 ) +
+ ( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len+1 : 0 ) +
+ vtmp.bv_len + ( sizeof("(:=)") - 1 );
+ fstr->bv_val = malloc( fstr->bv_len + 1 );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
+ atmp.bv_val,
+ f->f_mr_dnattrs ? ":dn" : "",
+ f->f_mr_rule_text.bv_len ? ":" : "",
+ f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_val : "",
+ vtmp.bv_val );
+ ber_memfree( vtmp.bv_val );
+ } break;
+
+ case SLAPD_FILTER_COMPUTED: {
+ struct berval bv;
+
+ switch ( f->f_result ) {
+ default:
+ ber_str2bv( "(?=error)", sizeof("(?=error)") - 1,
+ 1, fstr );
+ return LDAP_COMPARE_FALSE;
+
+ case LDAP_COMPARE_FALSE:
+ case SLAPD_COMPARE_UNDEFINED:
+ BER_BVSTR( &bv, "(!(objectClass=*))" );
+ break;
+
+ case LDAP_COMPARE_TRUE:
+ BER_BVSTR( &bv, "(objectClass=*)" );
+ break;
+ }
+
+ ber_dupbv( fstr, &bv );
+ } return LDAP_SUCCESS;
+
+ default:
+ ber_str2bv( "(?=unknown)", sizeof("(?=unknown)")-1, 1, fstr );
+ return LDAP_COMPARE_FALSE;
+ }
+
+ return LDAP_SUCCESS;
+}
+
+int
+ldap_back_filter_map_rewrite(
+ dncookie *dc,
+ Filter *f,
+ struct berval *fstr,
+ int remap )
+{
+ int rc;
+ dncookie fdc;
+ struct berval ftmp;
+
+ rc = ldap_int_back_filter_map_rewrite( dc, f, fstr, remap );
+
+#ifdef ENABLE_REWRITE
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ fdc = *dc;
+ ftmp = *fstr;
+
+ fdc.ctx = "searchFilter";
+
+ switch ( rewrite_session( fdc.rwmap->rwm_rw, fdc.ctx,
+ ( ftmp.bv_len ? ftmp.bv_val : "" ),
+ fdc.conn, &fstr->bv_val )) {
+ case REWRITE_REGEXEC_OK:
+ if ( fstr->bv_val != NULL ) {
+ fstr->bv_len = strlen( fstr->bv_val );
+ free( ftmp.bv_val );
+ } else {
+ *fstr = ftmp;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG( BACK_LDAP, DETAIL1,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ dc->ctx,
+ BER_BVISNULL( &ftmp ) ? "" : ftmp.bv_val,
+ BER_BVISNULL( fstr ) ? "" : fstr->bv_val );
+#else /* !NEW_LOGGING */
+ Debug( LDAP_DEBUG_ARGS,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ dc->ctx,
+ BER_BVISNULL( &ftmp ) ? "" : ftmp.bv_val,
+ BER_BVISNULL( fstr ) ? "" : fstr->bv_val );
+#endif /* !NEW_LOGGING */
+ rc = LDAP_SUCCESS;
+ break;
+
+ case REWRITE_REGEXEC_UNWILLING:
+ if ( fdc.rs ) {
+ fdc.rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
+ fdc.rs->sr_text = "Operation not allowed";
+ }
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ break;
+
+ case REWRITE_REGEXEC_ERR:
+ if ( fdc.rs ) {
+ fdc.rs->sr_err = LDAP_OTHER;
+ fdc.rs->sr_text = "Rewrite error";
+ }
+ rc = LDAP_OTHER;
+ break;
+ }
+
+#endif /* ENABLE_REWRITE */
+ return rc;
+}
+
+/*
+ * I don't like this much, but we need two different
+ * functions because different heap managers may be
+ * in use in back-ldap/meta to reduce the amount of
+ * calls to malloc routines, and some of the free()
+ * routines may be macros with args
+ */
+int
+ldap_dnattr_rewrite(
+ dncookie *dc,
+ BerVarray a_vals
+)
+{
+ struct berval bv;
+ int i, last;
+
+ assert( a_vals != NULL );
+
+ for ( last = 0; a_vals[last].bv_val != NULL; last++ );
+ last--;
+
+ for ( i = 0; a_vals[i].bv_val != NULL; i++ ) {
+ switch ( ldap_back_dn_massage( dc, &a_vals[i], &bv ) ) {
+ case LDAP_UNWILLING_TO_PERFORM:
+ /*
+ * FIXME: need to check if it may be considered
+ * legal to trim values when adding/modifying;
+ * it should be when searching (e.g. ACLs).
+ */
+ ch_free( a_vals[i].bv_val );
+ if (last > i ) {
+ a_vals[i] = a_vals[last];
+ }
+ a_vals[last].bv_len = 0;
+ a_vals[last].bv_val = NULL;
+ last--;
+ break;
+
+ default:
+ /* leave attr untouched if massage failed */
+ if ( bv.bv_val && bv.bv_val != a_vals[i].bv_val ) {
+ ch_free( a_vals[i].bv_val );
+ a_vals[i] = bv;
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int
+ldap_dnattr_result_rewrite(
+ dncookie *dc,
+ BerVarray a_vals
+)
+{
+ struct berval bv;
+ int i, last;
+
+ assert( a_vals != NULL );
+
+ for ( last = 0; a_vals[last].bv_val; last++ );
+ last--;
+
+ for ( i = 0; a_vals[i].bv_val; i++ ) {
+ switch ( ldap_back_dn_massage( dc, &a_vals[i], &bv ) ) {
+ case LDAP_UNWILLING_TO_PERFORM:
+ /*
+ * FIXME: need to check if it may be considered
+ * legal to trim values when adding/modifying;
+ * it should be when searching (e.g. ACLs).
+ */
+ LBER_FREE( a_vals[i].bv_val );
+ if ( last > i ) {
+ a_vals[i] = a_vals[last];
+ }
+ a_vals[last].bv_val = NULL;
+ a_vals[last].bv_len = 0;
+ last--;
+ break;
+
+ default:
+ /* leave attr untouched if massage failed */
+ if ( bv.bv_val && a_vals[i].bv_val != bv.bv_val ) {
+ LBER_FREE( a_vals[i].bv_val );
+ a_vals[i] = bv;
+ }
+ break;
+ }
+ }
+
+ return 0;
}
projects / openldap / blobdiff