diff options
| author | yongari <yongari@FreeBSD.org> | 2014-05-16 05:05:53 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2014-05-16 05:05:53 +0000 |
| commit | 9c37e888605a9aae80118829cfbba1c1c5793a36 (patch) | |
| tree | de8fff4db0adfa9f28128a9a1f4832f113cb7613 /sys | |
| parent | 979d09322879c661433d370b8f8f44881d70ea2f (diff) | |
| download | FreeBSD-src-9c37e888605a9aae80118829cfbba1c1c5793a36.zip FreeBSD-src-9c37e888605a9aae80118829cfbba1c1c5793a36.tar.gz | |
MFC r265942:
Fix checksum computation. Previously it didn't include carry.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/netinet/ip_input.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 26b9dfa..dea8bee 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -1085,8 +1085,9 @@ found: * (and not in for{} loop), though it implies we are not going to * reassemble more than 64k fragments. */ - m->m_pkthdr.csum_data = - (m->m_pkthdr.csum_data & 0xffff) + (m->m_pkthdr.csum_data >> 16); + while (m->m_pkthdr.csum_data & 0xffff0000) + m->m_pkthdr.csum_data = (m->m_pkthdr.csum_data & 0xffff) + + (m->m_pkthdr.csum_data >> 16); #ifdef MAC mac_ipq_reassemble(fp, m); mac_ipq_destroy(fp); |
