openldap/openldap-tls-no-reuse-of-tls_session.patch
2013-03-06 23:09:06 +01:00

93 lines
3.0 KiB
Diff

TLS: do not reuse tls_session if hostname check fails
If multiple servers are specified, the connection to the first one succeeds, and the hostname verification fails,
*tls_session is not dropped, but reused when connecting to the second server.
This is a problem with Mozilla NSS backend because another handshake cannot be performed on the same file descriptor.
From this reason, hostname checking was moved into ldap_int_tls_connect() before connection error handling.
Author: Jan Vcelak <jvcelak@redhat.com>
Upstream ITS: #7373
Resolves: #852476
diff --git a/libraries/libldap/tls2.c b/libraries/libldap/tls2.c
index 10b993b..a3cd590 100644
--- a/libraries/libldap/tls2.c
+++ b/libraries/libldap/tls2.c
@@ -320,7 +320,7 @@ update_flags( Sockbuf *sb, tls_session * ssl, int rc )
*/
static int
-ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
+ldap_int_tls_connect( LDAP *ld, LDAPConn *conn, const char *host )
{
Sockbuf *sb = conn->lconn_sb;
int err;
@@ -365,6 +365,10 @@ ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
errno = WSAGetLastError();
#endif
+ if ( err == 0 ) {
+ err = ldap_pvt_tls_check_hostname( ld, ssl, host );
+ }
+
if ( err < 0 )
{
char buf[256], *msg;
@@ -495,7 +499,15 @@ ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
{
tls_session *session = s;
- return tls_imp->ti_session_chkhost( ld, session, name_in );
+ if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER &&
+ ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW) {
+ ld->ld_errno = tls_imp->ti_session_chkhost( ld, session, name_in );
+ if (ld->ld_errno != LDAP_SUCCESS) {
+ return ld->ld_errno;
+ }
+ }
+
+ return LDAP_SUCCESS;
}
int
@@ -857,7 +869,7 @@ ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
#endif /* LDAP_USE_NON_BLOCKING_TLS */
ld->ld_errno = LDAP_SUCCESS;
- ret = ldap_int_tls_connect( ld, conn );
+ ret = ldap_int_tls_connect( ld, conn, host );
#ifdef LDAP_USE_NON_BLOCKING_TLS
while ( ret > 0 ) { /* this should only happen for non-blocking io */
@@ -878,7 +890,7 @@ ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
} else {
/* ldap_int_poll called ldap_pvt_ndelay_off */
ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_SET_NONBLOCK, sb );
- ret = ldap_int_tls_connect( ld, conn );
+ ret = ldap_int_tls_connect( ld, conn, host );
if ( ret > 0 ) { /* need to call tls_connect once more */
struct timeval curr_time_tv, delta_tv;
@@ -935,20 +947,6 @@ ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
return (ld->ld_errno);
}
- ssl = ldap_pvt_tls_sb_ctx( sb );
- assert( ssl != NULL );
-
- /*
- * compare host with name(s) in certificate
- */
- if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER &&
- ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW) {
- ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
- if (ld->ld_errno != LDAP_SUCCESS) {
- return ld->ld_errno;
- }
- }
-
return LDAP_SUCCESS;
}