From a0166609f782da91710dea9183d1bf138538db37 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Wed, 24 Jun 2015 21:22:46 +0200 Subject: resolved: packet - ensure there is space for IP+UDP headers Currently we only make sure our links can handle the size of the payload witohut taking the headers into account. --- src/resolve/resolved-dns-packet.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/resolve/resolved-dns-packet.h') diff --git a/src/resolve/resolved-dns-packet.h b/src/resolve/resolved-dns-packet.h index bf998aa84e..6588ed9df5 100644 --- a/src/resolve/resolved-dns-packet.h +++ b/src/resolve/resolved-dns-packet.h @@ -21,6 +21,8 @@ along with systemd; If not, see . ***/ +#include +#include #include "macro.h" #include "sparse-endian.h" @@ -53,6 +55,7 @@ struct DnsPacketHeader { }; #define DNS_PACKET_HEADER_SIZE sizeof(DnsPacketHeader) +#define UDP_PACKET_HEADER_SIZE (sizeof(struct iphdr) + sizeof(struct udphdr)) /* The various DNS protocols deviate in how large a packet can grow, but the TCP transport has a 16bit size field, hence that appears to -- cgit v1.2.3-54-g00ecf