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https://git.openldap.org/openldap/openldap.git
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178 lines
4.3 KiB
C
178 lines
4.3 KiB
C
/* bind.c - ldap backend bind function */
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/* $OpenLDAP$ */
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/*
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* Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
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*
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* Permission is granted to anyone to use this software for any purpose
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* on any computer system, and to alter it and redistribute it, subject
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* to the following restrictions:
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*
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* 1. The author is not responsible for the consequences of use of this
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* software, no matter how awful, even if they arise from flaws in it.
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*
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* 2. The origin of this software must not be misrepresented, either by
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* explicit claim or by omission. Since few users ever read sources,
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* credits should appear in the documentation.
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*
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* 3. Altered versions must be plainly marked as such, and must not be
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* misrepresented as being the original software. Since few users
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* ever read sources, credits should appear in the documentation.
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*
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* 4. This notice may not be removed or altered.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include "slap.h"
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#include "back-ldap.h"
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int
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ldap_back_bind(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *dn,
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const char *ndn,
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int method,
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struct berval *cred,
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char **edn
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)
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{
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struct ldapinfo *li = (struct ldapinfo *) be->be_private;
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struct ldapconn *lc;
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*edn = NULL;
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lc = ldap_back_getconn(li, conn, op);
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if (!lc)
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return( -1 );
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if (ldap_bind_s(lc->ld, dn, cred->bv_val, method) != LDAP_SUCCESS)
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return( ldap_back_op_result(lc, op) );
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lc->bound = 1;
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return( 0 );
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}
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struct ldapconn *
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ldap_back_getconn(struct ldapinfo *li, Connection *conn, Operation *op)
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{
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struct ldapconn *lc;
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LDAP *ld;
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ldap_pvt_thread_mutex_lock( &li->conn_mutex );
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for (lc = li->lcs; lc; lc=lc->next)
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if (lc->conn == conn)
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break;
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ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
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/* Looks like we didn't get a bind. Open a new session... */
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if (!lc) {
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int vers = conn->c_protocol;
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int err = ldap_initialize(&ld, li->url);
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if (err != LDAP_SUCCESS) {
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err = ldap_back_map_result(err);
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send_ldap_result( conn, op, err,
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NULL, "ldap_init failed", NULL, NULL );
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return( NULL );
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}
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/* Set LDAP version. This will always succeed: If the client
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* bound with a particular version, then so can we.
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*/
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ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION, &vers);
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lc = (struct ldapconn *)ch_malloc(sizeof(struct ldapconn));
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lc->conn = conn;
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lc->ld = ld;
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lc->bound = 0;
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ldap_pvt_thread_mutex_lock( &li->conn_mutex );
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lc->next = li->lcs;
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li->lcs = lc;
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ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
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}
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return( lc );
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}
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void
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ldap_back_dobind(struct ldapconn *lc, Operation *op)
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{
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if (lc->bound)
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return;
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if (ldap_bind_s(lc->ld, lc->conn->c_cdn, NULL, LDAP_AUTH_SIMPLE) !=
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LDAP_SUCCESS)
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ldap_back_op_result(lc, op);
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else
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lc->bound = 1;
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}
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/* Map API errors to protocol errors... */
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int
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ldap_back_map_result(int err)
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{
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switch(err)
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{
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case LDAP_SERVER_DOWN:
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return LDAP_UNAVAILABLE;
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case LDAP_LOCAL_ERROR:
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return LDAP_OPERATIONS_ERROR;
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case LDAP_ENCODING_ERROR:
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case LDAP_DECODING_ERROR:
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return LDAP_PROTOCOL_ERROR;
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case LDAP_TIMEOUT:
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return LDAP_UNAVAILABLE;
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case LDAP_AUTH_UNKNOWN:
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return LDAP_AUTH_METHOD_NOT_SUPPORTED;
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case LDAP_FILTER_ERROR:
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return LDAP_OPERATIONS_ERROR;
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case LDAP_USER_CANCELLED:
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return LDAP_OPERATIONS_ERROR;
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case LDAP_PARAM_ERROR:
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return LDAP_PROTOCOL_ERROR;
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case LDAP_NO_MEMORY:
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return LDAP_OPERATIONS_ERROR;
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case LDAP_CONNECT_ERROR:
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return LDAP_UNAVAILABLE;
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case LDAP_NOT_SUPPORTED:
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return LDAP_UNWILLING_TO_PERFORM;
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case LDAP_CONTROL_NOT_FOUND:
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return LDAP_PROTOCOL_ERROR;
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case LDAP_NO_RESULTS_RETURNED:
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return LDAP_NO_SUCH_OBJECT;
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case LDAP_MORE_RESULTS_TO_RETURN:
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return LDAP_OTHER;
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case LDAP_CLIENT_LOOP:
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case LDAP_REFERRAL_LIMIT_EXCEEDED:
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return LDAP_LOOP_DETECT;
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default:
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if LDAP_API_ERROR(err)
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return LDAP_OTHER;
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else
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return err;
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}
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}
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int
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ldap_back_op_result(struct ldapconn *lc, Operation *op)
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{
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int err;
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char *msg;
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char *match;
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ldap_get_option(lc->ld, LDAP_OPT_ERROR_NUMBER, &err);
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ldap_get_option(lc->ld, LDAP_OPT_ERROR_STRING, &msg);
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ldap_get_option(lc->ld, LDAP_OPT_MATCHED_DN, &match);
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err = ldap_back_map_result(err);
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send_ldap_result( lc->conn, op, err, match, msg, NULL, NULL );
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free(match);
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free(msg);
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return( (err==LDAP_SUCCESS) ? 0 : -1 );
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}
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