mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
368 lines
8.2 KiB
C
368 lines
8.2 KiB
C
/* $OpenLDAP$ */
|
|
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
|
|
*
|
|
* Copyright 1998-2021 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 program was originally developed by Kurt D. Zeilenga for inclusion in
|
|
* OpenLDAP Software.
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ac/stdlib.h>
|
|
#include <ac/string.h>
|
|
#include <ac/time.h>
|
|
|
|
#include "ldap-int.h"
|
|
|
|
/*
|
|
* LDAP Verify Credentials operation
|
|
*
|
|
* The request is an extended request with OID 1.3.6.1.4.1.4203.666.6.5 with value of
|
|
* the BER encoding of:
|
|
*
|
|
* VCRequest ::= SEQUENCE {
|
|
* cookie [0] OCTET STRING OPTIONAL,
|
|
* name LDAPDN,
|
|
* authentication AuthenticationChoice,
|
|
* controls [2] Controls OPTIONAL
|
|
* }
|
|
*
|
|
* where LDAPDN, AuthenticationChoice, and Controls are as defined in RFC 4511.
|
|
*
|
|
* The response is an extended response with no OID and a value of the BER encoding of
|
|
*
|
|
* VCResponse ::= SEQUENCE {
|
|
* resultCode ResultCode,
|
|
* diagnosticMessage LDAPString,
|
|
* cookie [0] OCTET STRING OPTIONAL,
|
|
* serverSaslCreds [1] OCTET STRING OPTIONAL,
|
|
* controls [2] Controls OPTIONAL
|
|
* }
|
|
*
|
|
* where ResultCode is the result code enumeration from RFC 4511, and LDAPString and Controls are as
|
|
* defined in RFC 4511.
|
|
*/
|
|
|
|
int ldap_parse_verify_credentials(
|
|
LDAP *ld,
|
|
LDAPMessage *res,
|
|
int * code,
|
|
char ** diagmsg,
|
|
struct berval **cookie,
|
|
struct berval **screds,
|
|
LDAPControl ***ctrls)
|
|
{
|
|
int rc;
|
|
char *retoid = NULL;
|
|
struct berval *retdata = NULL;
|
|
|
|
assert(ld != NULL);
|
|
assert(LDAP_VALID(ld));
|
|
assert(res != NULL);
|
|
assert(code != NULL);
|
|
assert(diagmsg != NULL);
|
|
|
|
rc = ldap_parse_extended_result(ld, res, &retoid, &retdata, 0);
|
|
|
|
if( rc != LDAP_SUCCESS ) {
|
|
ldap_perror(ld, "ldap_parse_verify_credentials");
|
|
return rc;
|
|
}
|
|
|
|
if (retdata) {
|
|
ber_tag_t tag;
|
|
ber_len_t len;
|
|
ber_int_t i;
|
|
BerElement * ber = ber_init(retdata);
|
|
struct berval diagmsg_bv = BER_BVNULL;
|
|
if (!ber) {
|
|
rc = ld->ld_errno = LDAP_NO_MEMORY;
|
|
goto done;
|
|
}
|
|
|
|
rc = LDAP_DECODING_ERROR;
|
|
|
|
if (ber_scanf(ber, "{im" /*"}"*/, &i, &diagmsg_bv) == LBER_ERROR) {
|
|
goto ber_done;
|
|
}
|
|
if ( diagmsg != NULL ) {
|
|
*diagmsg = LDAP_MALLOC( diagmsg_bv.bv_len + 1 );
|
|
AC_MEMCPY( *diagmsg, diagmsg_bv.bv_val, diagmsg_bv.bv_len );
|
|
(*diagmsg)[diagmsg_bv.bv_len] = '\0';
|
|
}
|
|
*code = i;
|
|
|
|
tag = ber_peek_tag(ber, &len);
|
|
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_COOKIE) {
|
|
if (ber_scanf(ber, "O", cookie) == LBER_ERROR)
|
|
goto ber_done;
|
|
tag = ber_peek_tag(ber, &len);
|
|
}
|
|
|
|
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_SCREDS) {
|
|
if (ber_scanf(ber, "O", screds) == LBER_ERROR)
|
|
goto ber_done;
|
|
tag = ber_peek_tag(ber, &len);
|
|
}
|
|
|
|
if (tag == LDAP_TAG_EXOP_VERIFY_CREDENTIALS_CONTROLS) {
|
|
int nctrls = 0;
|
|
char * opaque;
|
|
|
|
*ctrls = LDAP_MALLOC(1 * sizeof(LDAPControl *));
|
|
|
|
if (!*ctrls) {
|
|
rc = LDAP_NO_MEMORY;
|
|
goto ber_done;
|
|
}
|
|
|
|
*ctrls[nctrls] = NULL;
|
|
|
|
for(tag = ber_first_element(ber, &len, &opaque);
|
|
tag != LBER_ERROR;
|
|
tag = ber_next_element(ber, &len, opaque))
|
|
{
|
|
LDAPControl *tctrl;
|
|
LDAPControl **tctrls;
|
|
|
|
tctrl = LDAP_CALLOC(1, sizeof(LDAPControl));
|
|
|
|
/* allocate pointer space for current controls (nctrls)
|
|
* + this control + extra NULL
|
|
*/
|
|
tctrls = !tctrl ? NULL : LDAP_REALLOC(*ctrls, (nctrls+2) * sizeof(LDAPControl *));
|
|
|
|
if (!tctrls) {
|
|
/* allocation failure */
|
|
if (tctrl) LDAP_FREE(tctrl);
|
|
ldap_controls_free(*ctrls);
|
|
*ctrls = NULL;
|
|
rc = LDAP_NO_MEMORY;
|
|
goto ber_done;
|
|
}
|
|
|
|
tctrls[nctrls++] = tctrl;
|
|
tctrls[nctrls] = NULL;
|
|
|
|
tag = ber_scanf(ber, "{a" /*"}"*/, &tctrl->ldctl_oid);
|
|
if (tag == LBER_ERROR) {
|
|
*ctrls = NULL;
|
|
ldap_controls_free(tctrls);
|
|
goto ber_done;
|
|
}
|
|
|
|
tag = ber_peek_tag(ber, &len);
|
|
if (tag == LBER_BOOLEAN) {
|
|
ber_int_t crit;
|
|
tag = ber_scanf(ber, "b", &crit);
|
|
tctrl->ldctl_iscritical = crit ? (char) 0 : (char) ~0;
|
|
tag = ber_peek_tag(ber, &len);
|
|
}
|
|
|
|
if (tag == LBER_OCTETSTRING) {
|
|
tag = ber_scanf( ber, "o", &tctrl->ldctl_value );
|
|
} else {
|
|
BER_BVZERO( &tctrl->ldctl_value );
|
|
}
|
|
|
|
*ctrls = tctrls;
|
|
}
|
|
}
|
|
|
|
rc = LDAP_SUCCESS;
|
|
|
|
ber_done:
|
|
ber_free(ber, 1);
|
|
}
|
|
|
|
done:
|
|
ber_bvfree(retdata);
|
|
ber_memfree(retoid);
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
ldap_verify_credentials(LDAP *ld,
|
|
struct berval *cookie,
|
|
LDAP_CONST char *dn,
|
|
LDAP_CONST char *mechanism,
|
|
struct berval *cred,
|
|
LDAPControl **vcctrls,
|
|
LDAPControl **sctrls,
|
|
LDAPControl **cctrls,
|
|
int *msgidp)
|
|
{
|
|
int rc;
|
|
BerElement *ber;
|
|
struct berval reqdata;
|
|
|
|
assert(ld != NULL);
|
|
assert(LDAP_VALID(ld));
|
|
assert(msgidp != NULL);
|
|
|
|
ber = ber_alloc_t(LBER_USE_DER);
|
|
if (dn == NULL) dn = "";
|
|
|
|
if (mechanism == LDAP_SASL_SIMPLE) {
|
|
assert(!cookie);
|
|
|
|
rc = ber_printf(ber, "{stO" /*"}"*/,
|
|
dn, LDAP_AUTH_SIMPLE, cred);
|
|
|
|
} else {
|
|
if (!cred || BER_BVISNULL(cred)) {
|
|
if (cookie) {
|
|
rc = ber_printf(ber, "{tOst{sN}" /*"}"*/,
|
|
LDAP_TAG_EXOP_VERIFY_CREDENTIALS_COOKIE, cookie,
|
|
dn, LDAP_AUTH_SASL, mechanism);
|
|
} else {
|
|
rc = ber_printf(ber, "{st{sN}N" /*"}"*/,
|
|
dn, LDAP_AUTH_SASL, mechanism);
|
|
}
|
|
} else {
|
|
if (cookie) {
|
|
rc = ber_printf(ber, "{tOst{sON}" /*"}"*/,
|
|
LDAP_TAG_EXOP_VERIFY_CREDENTIALS_COOKIE, cookie,
|
|
dn, LDAP_AUTH_SASL, mechanism, cred);
|
|
} else {
|
|
rc = ber_printf(ber, "{st{sON}" /*"}"*/,
|
|
dn, LDAP_AUTH_SASL, mechanism, cred);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rc < 0) {
|
|
rc = ld->ld_errno = LDAP_ENCODING_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
if (vcctrls && *vcctrls) {
|
|
LDAPControl *const *c;
|
|
|
|
rc = ber_printf(ber, "t{" /*"}"*/, LDAP_TAG_EXOP_VERIFY_CREDENTIALS_CONTROLS);
|
|
|
|
for (c=vcctrls; *c; c++) {
|
|
rc = ldap_pvt_put_control(*c, ber);
|
|
if (rc != LDAP_SUCCESS) {
|
|
rc = ld->ld_errno = LDAP_ENCODING_ERROR;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
rc = ber_printf(ber, /*"{{"*/ "}N}");
|
|
|
|
} else {
|
|
rc = ber_printf(ber, /*"{"*/ "N}");
|
|
}
|
|
|
|
if (rc < 0) {
|
|
rc = ld->ld_errno = LDAP_ENCODING_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
|
|
rc = ber_flatten2(ber, &reqdata, 0);
|
|
if (rc < 0) {
|
|
rc = ld->ld_errno = LDAP_ENCODING_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
rc = ldap_extended_operation(ld, LDAP_EXOP_VERIFY_CREDENTIALS,
|
|
&reqdata, sctrls, cctrls, msgidp);
|
|
|
|
done:
|
|
ber_free(ber, 1);
|
|
return rc;
|
|
}
|
|
|
|
int
|
|
ldap_verify_credentials_s(
|
|
LDAP *ld,
|
|
struct berval *cookie,
|
|
LDAP_CONST char *dn,
|
|
LDAP_CONST char *mechanism,
|
|
struct berval *cred,
|
|
LDAPControl **vcictrls,
|
|
LDAPControl **sctrls,
|
|
LDAPControl **cctrls,
|
|
int *rcode,
|
|
char **diagmsg,
|
|
struct berval **scookie,
|
|
struct berval **scred,
|
|
LDAPControl ***vcoctrls)
|
|
{
|
|
int rc;
|
|
int msgid;
|
|
LDAPMessage *res;
|
|
|
|
rc = ldap_verify_credentials(ld, cookie, dn, mechanism, cred, vcictrls, sctrls, cctrls, &msgid);
|
|
if (rc != LDAP_SUCCESS) return rc;
|
|
|
|
if (ldap_result(ld, msgid, LDAP_MSG_ALL, (struct timeval *) NULL, &res) == -1 || !res) {
|
|
return ld->ld_errno;
|
|
}
|
|
|
|
rc = ldap_parse_verify_credentials(ld, res, rcode, diagmsg, scookie, scred, vcoctrls);
|
|
if (rc != LDAP_SUCCESS) {
|
|
ldap_msgfree(res);
|
|
return rc;
|
|
}
|
|
|
|
return( ldap_result2error(ld, res, 1));
|
|
}
|
|
|
|
#ifdef LDAP_API_FEATURE_VERIFY_CREDENTIALS_INTERACTIVE
|
|
int
|
|
ldap_verify_credentials_interactive (
|
|
LDAP *ld,
|
|
LDAP_CONST char *dn, /* usually NULL */
|
|
LDAP_CONST char *mech,
|
|
LDAPControl **vcControls,
|
|
LDAPControl **serverControls,
|
|
LDAPControl **clientControls,
|
|
|
|
/* should be client controls */
|
|
unsigned flags,
|
|
LDAP_SASL_INTERACT_PROC *proc,
|
|
void *defaults,
|
|
void *context;
|
|
|
|
/* as obtained from ldap_result() */
|
|
LDAPMessage *result,
|
|
|
|
/* returned during bind processing */
|
|
const char **rmech,
|
|
int *msgid )
|
|
{
|
|
if (!ld && context) {
|
|
assert(!dn);
|
|
assert(!mech);
|
|
assert(!vcControls);
|
|
assert(!serverControls);
|
|
assert(!defaults);
|
|
assert(!result);
|
|
assert(!rmech);
|
|
assert(!msgid);
|
|
|
|
/* special case to avoid having to expose a separate dispose context API */
|
|
sasl_dispose((sasl_conn_t)context);
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
ld->ld_errno = LDAP_NOT_SUPPORTED;
|
|
return ld->ld_errno;
|
|
}
|
|
#endif
|