diff options
Diffstat (limited to 'checksum.c')
| -rw-r--r-- | checksum.c | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -133,7 +133,8 @@ void csum_ip4_header(struct iphdr *ip4h) * @payload: ICMPv4 packet payload * @len: Length of @payload (not including UDP) */ -void csum_udp4(struct udphdr *udp4hr, in_addr_t saddr, in_addr_t daddr, +void csum_udp4(struct udphdr *udp4hr, + struct in_addr saddr, struct in_addr daddr, const void *payload, size_t len) { /* UDP checksums are optional, so don't bother */ @@ -142,8 +143,8 @@ void csum_udp4(struct udphdr *udp4hr, in_addr_t saddr, in_addr_t daddr, if (UDP4_REAL_CHECKSUMS) { /* UNTESTED: if we did want real UDPv4 checksums, this * is roughly what we'd need */ - uint32_t psum = csum_fold(htonl(saddr)) - + csum_fold(htonl(daddr)) + uint32_t psum = csum_fold(saddr.s_addr) + + csum_fold(daddr.s_addr) + htons(len + sizeof(*udp4hr)) + htons(IPPROTO_UDP); /* Add in partial checksum for the UDP header alone */ |