From 1b28f366b8796a9e6d27af74146dbc7836100263 Mon Sep 17 00:00:00 2001 From: Nick Mathewson Date: Thu, 14 Mar 2013 11:19:08 -0400 Subject: Apply ClientDNSRejectInternalAddresses to IPv6 in RESOLVED cells Fixes bug 8475; bugfix on 0.2.0.7-alpha. --- src/or/relay.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'src/or') diff --git a/src/or/relay.c b/src/or/relay.c index a17c333310..e69eade97b 100644 --- a/src/or/relay.c +++ b/src/or/relay.c @@ -969,12 +969,15 @@ connection_edge_process_relay_cell_not_open( 2+answer_len)); else ttl = -1; - if (answer_type == RESOLVED_TYPE_IPV4 && answer_len == 4) { - uint32_t addr = ntohl(get_uint32(cell->payload+RELAY_HEADER_SIZE+2)); - if (get_options()->ClientDNSRejectInternalAddresses && - is_internal_IP(addr, 0)) { + if (answer_type == RESOLVED_TYPE_IPV4 || + answer_type == RESOLVED_TYPE_IPV6) { + tor_addr_t addr; + if (decode_address_from_payload(&addr, cell->payload+RELAY_HEADER_SIZE, + rh->length) && + tor_addr_is_internal(&addr, 0) && + get_options()->ClientDNSRejectInternalAddresses) { log_info(LD_APP,"Got a resolve with answer %s. Rejecting.", - fmt_addr32(addr)); + fmt_addr(&addr)); connection_ap_handshake_socks_resolved(entry_conn, RESOLVED_TYPE_ERROR_TRANSIENT, 0, NULL, 0, TIME_MAX); -- cgit v1.2.3-54-g00ecf