diff options
Diffstat (limited to 'servers/slapd/back-meta/suffixmassage.c')
| -rw-r--r-- | servers/slapd/back-meta/suffixmassage.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/servers/slapd/back-meta/suffixmassage.c b/servers/slapd/back-meta/suffixmassage.c new file mode 100644 index 0000000..b7bb4ab --- /dev/null +++ b/servers/slapd/back-meta/suffixmassage.c @@ -0,0 +1,193 @@ +/* suffixmassage.c - massages ldap backend dns */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2003-2021 The OpenLDAP Foundation. + * 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. + * + * 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. + */ +/* This is an altered version */ + +/* + * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com> + * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it> + * + * Module back-ldap, originally developed by Howard Chu + * + * has been modified by Pierangelo Masarati. The original copyright + * notice has been maintained. + * + * 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. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/string.h> +#include <ac/socket.h> + +#include "slap.h" +#include "../back-ldap/back-ldap.h" +#include "back-meta.h" + +#ifdef ENABLE_REWRITE +int +ldap_back_dn_massage( + dncookie *dc, + struct berval *dn, + struct berval *res ) +{ + int rc = 0; + static char *dmy = ""; + + switch ( rewrite_session( dc->target->mt_rwmap.rwm_rw, dc->ctx, + ( dn->bv_val ? dn->bv_val : dmy ), + dc->conn, &res->bv_val ) ) + { + case REWRITE_REGEXEC_OK: + if ( res->bv_val != NULL ) { + res->bv_len = strlen( res->bv_val ); + } else { + *res = *dn; + } + Debug( LDAP_DEBUG_ARGS, + "[rw] %s: \"%s\" -> \"%s\"\n", + dc->ctx, + BER_BVISNULL( dn ) ? "" : dn->bv_val, + BER_BVISNULL( res ) ? "" : res->bv_val ); + rc = LDAP_SUCCESS; + break; + + case REWRITE_REGEXEC_UNWILLING: + if ( dc->rs ) { + dc->rs->sr_err = LDAP_UNWILLING_TO_PERFORM; + dc->rs->sr_text = "Operation not allowed"; + } + rc = LDAP_UNWILLING_TO_PERFORM; + break; + + case REWRITE_REGEXEC_ERR: + if ( dc->rs ) { + dc->rs->sr_err = LDAP_OTHER; + dc->rs->sr_text = "Rewrite error"; + } + rc = LDAP_OTHER; + break; + } + + if ( res->bv_val == dmy ) { + BER_BVZERO( res ); + } + + return rc; +} + +#else +/* + * ldap_back_dn_massage + * + * Aliases the suffix; based on suffix_alias (servers/slapd/suffixalias.c). + */ +int +ldap_back_dn_massage( + dncookie *dc, + struct berval *odn, + struct berval *res +) +{ + int i, src, dst; + struct berval pretty = {0,NULL}, *dn = odn; + + assert( res != NULL ); + + if ( dn == NULL ) { + res->bv_val = NULL; + res->bv_len = 0; + return 0; + } + if ( dc->target->mt_rwmap.rwm_suffix_massage == NULL ) { + *res = *dn; + return 0; + } + + if ( dc->tofrom ) { + src = 0 + dc->normalized; + dst = 2 + dc->normalized; + } else { + src = 2 + dc->normalized; + dst = 0 + dc->normalized; + /* DN from remote server may be in arbitrary form. + * Pretty it so we can parse reliably. + */ + dnPretty( NULL, dn, &pretty, NULL ); + if (pretty.bv_val) dn = &pretty; + } + + for ( i = 0; + dc->target->mt_rwmap.rwm_suffix_massage[i].bv_val != NULL; + i += 4 ) { + int aliasLength = dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_len; + int diff = dn->bv_len - aliasLength; + + if ( diff < 0 ) { + /* alias is longer than dn */ + continue; + } else if ( diff > 0 && ( !DN_SEPARATOR(dn->bv_val[diff-1]))) { + /* boundary is not at a DN separator */ + continue; + /* At a DN Separator */ + } + + if ( !strcmp( dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_val, &dn->bv_val[diff] ) ) { + res->bv_len = diff + dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_len; + res->bv_val = ch_malloc( res->bv_len + 1 ); + strncpy( res->bv_val, dn->bv_val, diff ); + strcpy( &res->bv_val[diff], dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_val ); + Debug( LDAP_DEBUG_ARGS, + "ldap_back_dn_massage:" + " converted \"%s\" to \"%s\"\n", + BER_BVISNULL( dn ) ? "" : dn->bv_val, + BER_BVISNULL( res ) ? "" : res->bv_val, 0 ); + break; + } + } + if (pretty.bv_val) { + ch_free(pretty.bv_val); + dn = odn; + } + /* Nothing matched, just return the original DN */ + if (res->bv_val == NULL) { + *res = *dn; + } + + return 0; +} +#endif /* !ENABLE_REWRITE */ |