oh, thank you so much!!!
On Tue, Feb 11, 2014 at 4:19 PM, John de la Garza <[email protected]> wrote: > On Tue, Feb 11, 2014 at 03:03:42PM -0500, Guibin(Bill) Tian wrote: > > Hi, > > I am looking for the code in linux kernel that verifies the checksum of > TCP > > header and IP header for inbound packet. The packet supposes to be > dropped > > if the checksum doesn't match. > > Here is some code that checks the TCP checksum. > > /* > * Calculate(/check) TCP checksum > */ > static inline __sum16 tcp_v4_check(int len, __be32 saddr, > __be32 daddr, __wsum base) > { > return csum_tcpudp_magic(saddr,daddr,len,IPPROTO_TCP,base); > } > > from: include/net/tcp.h > > > also, try searching for csum_error in net/ipv4/tcp_ipv4.c >
_______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
