static int
ldap_back_exop_passwd(
Operation *op,
SlapReply *rs,
ldapconn_t **lcp )
{
ldapinfo_t *li = (ldapinfo_t *) op->o_bd->be_private;
ldapconn_t *lc = *lcp;
req_pwdexop_s *qpw = &op->oq_pwdexop;
LDAPMessage *res;
ber_int_t msgid;
int rc, isproxy, freedn = 0;
int do_retry = 1;
char *text = NULL;
struct berval dn = op->o_req_dn,
ndn = op->o_req_ndn;
assert( lc != NULL );
assert( rs->sr_ctrls == NULL );
if ( BER_BVISNULL( &ndn ) && op->ore_reqdata != NULL ) {
/* NOTE: most of this code is mutated
* from slap_passwd_parse();
* But here we only need
* the first berval... */
ber_tag_t tag;
ber_len_t len = -1;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
struct berval tmpid = BER_BVNULL;
if ( op->ore_reqdata->bv_len == 0 ) {
return LDAP_PROTOCOL_ERROR;
}
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, op->ore_reqdata, 0 );
tag = ber_scanf( ber, "{" /*}*/ );
if ( tag == LBER_ERROR ) {
return LDAP_PROTOCOL_ERROR;
}
tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_ID ) {
tag = ber_get_stringbv( ber, &tmpid, LBER_BV_NOTERM );
if ( tag == LBER_ERROR ) {
return LDAP_PROTOCOL_ERROR;
}
}
if ( !BER_BVISEMPTY( &tmpid ) ) {
char idNull = tmpid.bv_val[tmpid.bv_len];
tmpid.bv_val[tmpid.bv_len] = '\0';
rs->sr_err = dnPrettyNormal( NULL, &tmpid, &dn,
&ndn, op->o_tmpmemctx );
tmpid.bv_val[tmpid.bv_len] = idNull;
if ( rs->sr_err != LDAP_SUCCESS ) {
/* should have been successfully parsed earlier! */
return rs->sr_err;
}
freedn = 1;
} else {
dn = op->o_dn;
ndn = op->o_ndn;
}
}
isproxy = ber_bvcmp( &ndn, &op->o_ndn );
Debug( LDAP_DEBUG_ARGS, "==> ldap_back_exop_passwd(\"%s\")%s\n",
dn.bv_val, isproxy ? " (proxy)" : "", 0 );
retry:
rc = ldap_passwd( lc->lc_ld, &dn,
qpw->rs_old.bv_val ? &qpw->rs_old : NULL,
qpw->rs_new.bv_val ? &qpw->rs_new : NULL,
op->o_ctrls, NULL, &msgid );
if ( rc == LDAP_SUCCESS ) {
/* TODO: set timeout? */
/* by now, make sure no timeout is used (ITS#6282) */
struct timeval tv = { -1, 0 };
if ( ldap_result( lc->lc_ld, msgid, LDAP_MSG_ALL, &tv, &res ) == -1 ) {
ldap_get_option( lc->lc_ld, LDAP_OPT_ERROR_NUMBER, &rc );
rs->sr_err = rc;
} else {
/* only touch when activity actually took place... */
if ( li->li_idle_timeout ) {
lc->lc_time = op->o_time;
}
/* sigh. parse twice, because parse_passwd
* doesn't give us the err / match / msg info.
*/
rc = ldap_parse_result( lc->lc_ld, res, &rs->sr_err,
(char **)&rs->sr_matched,
&text,
NULL, &rs->sr_ctrls, 0 );
if ( rc == LDAP_SUCCESS ) {
if ( rs->sr_err == LDAP_SUCCESS ) {
struct berval newpw;
/* this never happens because
* the frontend is generating
* the new password, so when
* the passwd exop is proxied,
* it never delegates password
* generation to the remote server
*/
rc = ldap_parse_passwd( lc->lc_ld, res,
&newpw );
if ( rc == LDAP_SUCCESS &&
!BER_BVISNULL( &newpw ) )
{
rs->sr_type = REP_EXTENDED;
rs->sr_rspdata = slap_passwd_return( &newpw );
free( newpw.bv_val );
}
} else {
rc = rs->sr_err;
}
}
ldap_msgfree( res );
}
}
if ( rc != LDAP_SUCCESS ) {
rs->sr_err = slap_map_api2result( rs );
if ( rs->sr_err == LDAP_UNAVAILABLE && do_retry ) {
do_retry = 0;
if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
goto retry;
}
}
if ( LDAP_BACK_QUARANTINE( li ) ) {
ldap_back_quarantine( op, rs );
}
if ( text ) rs->sr_text = text;
send_ldap_extended( op, rs );
/* otherwise frontend resends result */
rc = rs->sr_err = SLAPD_ABANDON;
} else if ( LDAP_BACK_QUARANTINE( li ) ) {
ldap_back_quarantine( op, rs );
}
ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_EXTENDED ], 1 );
ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
if ( freedn ) {
op->o_tmpfree( dn.bv_val, op->o_tmpmemctx );
op->o_tmpfree( ndn.bv_val, op->o_tmpmemctx );
}
/* these have to be freed anyway... */
if ( rs->sr_matched ) {
free( (char *)rs->sr_matched );
rs->sr_matched = NULL;
}
if ( rs->sr_ctrls ) {
ldap_controls_free( rs->sr_ctrls );
rs->sr_ctrls = NULL;
}
if ( text ) {
free( text );
rs->sr_text = NULL;
}
/* in case, cleanup handler */
if ( lc == NULL ) {
*lcp = NULL;
}
return rc;
}
/* NOTE: The DN in *id is NOT NUL-terminated here. dnNormalize will
* reject it in this condition, the caller must NUL-terminate it.
* FIXME: should dnNormalize still be complaining about that?
*/
int slap_passwd_parse( struct berval *reqdata,
struct berval *id,
struct berval *oldpass,
struct berval *newpass,
const char **text )
{
int rc = LDAP_SUCCESS;
ber_tag_t tag;
ber_len_t len = -1;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
if( reqdata == NULL ) {
return LDAP_SUCCESS;
}
if( reqdata->bv_len == 0 ) {
*text = "empty request data field";
return LDAP_PROTOCOL_ERROR;
}
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
ber_init2( ber, reqdata, 0 );
tag = ber_skip_tag( ber, &len );
if( tag != LBER_SEQUENCE ) {
Debug( LDAP_DEBUG_TRACE,
"slap_passwd_parse: decoding error\n", 0, 0, 0 );
rc = LDAP_PROTOCOL_ERROR;
goto done;
}
tag = ber_peek_tag( ber, &len );
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_ID ) {
if( id == NULL ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID not allowed.\n",
0, 0, 0 );
*text = "user must change own password";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
tag = ber_get_stringbv( ber, id, LBER_BV_NOTERM );
if( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID parse failed.\n",
0, 0, 0 );
goto decoding_error;
}
tag = ber_peek_tag( ber, &len );
}
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_OLD ) {
if( oldpass == NULL ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD not allowed.\n",
0, 0, 0 );
*text = "use bind to verify old password";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
tag = ber_get_stringbv( ber, oldpass, LBER_BV_NOTERM );
if( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD parse failed.\n",
0, 0, 0 );
goto decoding_error;
}
if( oldpass->bv_len == 0 ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD empty.\n",
0, 0, 0 );
*text = "old password value is empty";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
tag = ber_peek_tag( ber, &len );
}
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_NEW ) {
if( newpass == NULL ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: NEW not allowed.\n",
0, 0, 0 );
*text = "user specified passwords disallowed";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
tag = ber_get_stringbv( ber, newpass, LBER_BV_NOTERM );
if( tag == LBER_ERROR ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: NEW parse failed.\n",
0, 0, 0 );
goto decoding_error;
}
if( newpass->bv_len == 0 ) {
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: NEW empty.\n",
0, 0, 0 );
*text = "new password value is empty";
rc = LDAP_UNWILLING_TO_PERFORM;
goto done;
}
tag = ber_peek_tag( ber, &len );
}
if( len != 0 ) {
decoding_error:
Debug( LDAP_DEBUG_TRACE,
"slap_passwd_parse: decoding error, len=%ld\n",
(long) len, 0, 0 );
*text = "data decoding error";
rc = LDAP_PROTOCOL_ERROR;
}
done:
return rc;
}
/* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
* x509_name must be raw DER. If func is non-NULL, the
* constructed DN will use numeric OIDs to identify attributeTypes,
* and the func() will be invoked to rewrite the DN with the given
* flags.
*
* Otherwise the DN will use shortNames from a hardcoded table.
*/
int
ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
unsigned flags )
{
LDAPDN newDN;
LDAPRDN newRDN;
LDAPAVA *newAVA, *baseAVA;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *)&berbuf;
char oids[8192], *oidptr = oids, *oidbuf = NULL;
void *ptrs[2048];
char *dn_end, *rdn_end;
int i, navas, nrdns, rc = LDAP_SUCCESS;
size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
int csize;
ber_tag_t tag;
ber_len_t len;
oid_name *oidname;
struct berval Oid, Val, oid2, *in = x509_name;
assert( bv != NULL );
bv->bv_len = 0;
bv->bv_val = NULL;
navas = 0;
nrdns = 0;
/* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
* An AVA is a SEQUENCE of attr and value.
* Count the number of AVAs and RDNs
*/
ber_init2( ber, in, LBER_USE_DER );
tag = ber_peek_tag( ber, &len );
if ( tag != LBER_SEQUENCE )
return LDAP_DECODING_ERROR;
for ( tag = ber_first_element( ber, &len, &dn_end );
tag == LBER_SET;
tag = ber_next_element( ber, &len, dn_end )) {
nrdns++;
for ( tag = ber_first_element( ber, &len, &rdn_end );
tag == LBER_SEQUENCE;
tag = ber_next_element( ber, &len, rdn_end )) {
tag = ber_skip_tag( ber, &len );
ber_skip_data( ber, len );
navas++;
}
}
/* Allocate the DN/RDN/AVA stuff as a single block */
dnsize = sizeof(LDAPRDN) * (nrdns+1);
dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
dnsize += sizeof(LDAPAVA) * navas;
if (dnsize > sizeof(ptrs)) {
newDN = (LDAPDN)LDAP_MALLOC( dnsize );
if ( newDN == NULL )
return LDAP_NO_MEMORY;
} else {
newDN = (LDAPDN)(char *)ptrs;
}
newDN[nrdns] = NULL;
newRDN = (LDAPRDN)(newDN + nrdns+1);
newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
baseAVA = newAVA;
/* Rewind and start extracting */
ber_rewind( ber );
tag = ber_first_element( ber, &len, &dn_end );
for ( i = nrdns - 1; i >= 0; i-- ) {
newDN[i] = newRDN;
for ( tag = ber_first_element( ber, &len, &rdn_end );
tag == LBER_SEQUENCE;
tag = ber_next_element( ber, &len, rdn_end )) {
*newRDN++ = newAVA;
tag = ber_skip_tag( ber, &len );
tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
if ( tag != LBER_TAG_OID ) {
rc = LDAP_DECODING_ERROR;
goto nomem;
}
oid2.bv_val = oidptr;
oid2.bv_len = oidrem;
if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
rc = LDAP_DECODING_ERROR;
goto nomem;
}
oidname = find_oid( &oid2 );
if ( !oidname ) {
newAVA->la_attr = oid2;
oidptr += oid2.bv_len + 1;
oidrem -= oid2.bv_len + 1;
/* Running out of OID buffer space? */
if (oidrem < 128) {
if ( oidsize == 0 ) {
oidsize = sizeof(oids) * 2;
oidrem = oidsize;
oidbuf = LDAP_MALLOC( oidsize );
if ( oidbuf == NULL ) goto nomem;
oidptr = oidbuf;
} else {
char *old = oidbuf;
oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
if ( oidbuf == NULL ) goto nomem;
/* Buffer moved! Fix AVA pointers */
if ( old != oidbuf ) {
LDAPAVA *a;
long dif = oidbuf - old;
for (a=baseAVA; a<=newAVA; a++){
if (a->la_attr.bv_val >= old &&
a->la_attr.bv_val <= (old + oidsize))
a->la_attr.bv_val += dif;
}
}
oidptr = oidbuf + oidsize - oidrem;
oidrem += oidsize;
oidsize *= 2;
}
}
} else {
if ( func ) {
newAVA->la_attr = oidname->oid;
} else {
newAVA->la_attr = oidname->name;
}
}
newAVA->la_private = NULL;
newAVA->la_flags = LDAP_AVA_STRING;
tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
switch(tag) {
case LBER_TAG_UNIVERSAL:
/* This uses 32-bit ISO 10646-1 */
csize = 4; goto to_utf8;
case LBER_TAG_BMP:
/* This uses 16-bit ISO 10646-1 */
csize = 2; goto to_utf8;
case LBER_TAG_TELETEX:
/* This uses 8-bit, assume ISO 8859-1 */
csize = 1;
to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
newAVA->la_flags |= LDAP_AVA_NONPRINTABLE;
allocd:
newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
if (rc != LDAP_SUCCESS) goto nomem;
break;
case LBER_TAG_UTF8:
newAVA->la_flags |= LDAP_AVA_NONPRINTABLE;
/* This is already in UTF-8 encoding */
case LBER_TAG_IA5:
case LBER_TAG_PRINTABLE:
/* These are always 7-bit strings */
newAVA->la_value = Val;
break;
case LBER_BITSTRING:
/* X.690 bitString value converted to RFC4517 Bit String */
rc = der_to_ldap_BitString( &Val, &newAVA->la_value );
goto allocd;
default:
/* Not a string type at all */
newAVA->la_flags = 0;
newAVA->la_value = Val;
break;
}
newAVA++;
}
*newRDN++ = NULL;
tag = ber_next_element( ber, &len, dn_end );
}
if ( func ) {
rc = func( newDN, flags, NULL );
if ( rc != LDAP_SUCCESS )
goto nomem;
}
rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
nomem:
for (;baseAVA < newAVA; baseAVA++) {
if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
LDAP_FREE( baseAVA->la_attr.bv_val );
if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
LDAP_FREE( baseAVA->la_value.bv_val );
}
if ( oidsize != 0 )
LDAP_FREE( oidbuf );
if ( newDN != (LDAPDN)(char *) ptrs )
LDAP_FREE( newDN );
return rc;
}
