TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-10-10 00:51:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

net/packet: support full IPv6 decoding.

Browse Source 
The packet filter still rejects all IPv6, but decodes enough from v6
packets to do something smarter in a followup.

name              time/op
Decode/tcp4-8     28.8ns ± 2%
Decode/tcp6-8     20.6ns ± 1%
Decode/udp4-8     28.2ns ± 1%
Decode/udp6-8     20.0ns ± 6%
Decode/icmp4-8    21.7ns ± 2%
Decode/icmp6-8    14.1ns ± 2%
Decode/unknown-8  9.43ns ± 2%

Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson
2020-11-10 01:00:35 -08:00
committed by Dave Anderson
parent 89894c6930
commit 55b1221db2
11 changed files with 463 additions and 193 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/packet/udp4.go
View File

@@ -14,7 +14,7 @@ type UDP4Header struct {
const (
udpHeaderLength = 8
// udpTotalHeaderLength is the length of all headers in a UDP packet.
udpTotalHeaderLength = ipHeaderLength + udpHeaderLength
udpTotalHeaderLength = ip4HeaderLength + udpHeaderLength
)
func (UDP4Header) Len() int {