diff options
Diffstat (limited to 'pkg/abi/linux')
| -rw-r--r-- | pkg/abi/linux/netfilter.go | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/pkg/abi/linux/netfilter.go b/pkg/abi/linux/netfilter.go index 7363185b7..bbc4df74c 100644 --- a/pkg/abi/linux/netfilter.go +++ b/pkg/abi/linux/netfilter.go @@ -370,11 +370,12 @@ type XTTCP struct { // Option specifies that a particular TCP option must be set. Option uint8 - // FlagMask masks the FlagCompare byte when comparing to the TCP flag - // fields. + // FlagMask masks TCP flags when comparing to the FlagCompare byte. It allows + // for specification of which flags are important to the matcher. FlagMask uint8 - // FlagCompare is binary and-ed with the TCP flag fields. + // FlagCompare, in combination with FlagMask, is used to match only packets + // that have certain flags set. FlagCompare uint8 // InverseFlags flips the meaning of certain fields. See the |