diff options
Diffstat (limited to 'sys/netinet/libalias/alias_local.h')
| -rw-r--r-- | sys/netinet/libalias/alias_local.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/netinet/libalias/alias_local.h b/sys/netinet/libalias/alias_local.h index 63f6288..4dc2e0a 100644 --- a/sys/netinet/libalias/alias_local.h +++ b/sys/netinet/libalias/alias_local.h @@ -178,9 +178,18 @@ struct libalias { /* Prototypes */ -/* General utilities */ +/* + * We do not calculate TCP checksums when libalias is a kernel + * module, since it has no idea about checksum offloading. + * If TCP data has changed, then we just set checksum to zero, + * and caller must recalculate it himself. + * In case if libalias will edit UDP data, the same approach + * should be used. + */ +#ifndef _KERNEL u_short IpChecksum(struct ip *_pip); u_short TcpChecksum(struct ip *_pip); +#endif void DifferentialChecksum(u_short * _cksum, void * _new, void * _old, int _n); |
