diff options
| author | Bhasker Hariharan <bhaskerh@google.com> | 2019-07-12 13:34:06 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-07-12 13:35:17 -0700 |
| commit | 6116473b2ffdea90a4a97196e265c6d93e53ce00 (patch) | |
| tree | 74bd41319077af4042bd95cb9a7019869f0fe3a6 /pkg/tcpip/header/ipv4.go | |
| parent | 8f11e257c9fbbde4ea2232f54313812a4c4a1fe9 (diff) | |
Stub out support for TCP_MAXSEG.
Adds support to set/get the TCP_MAXSEG value but does not
really change the segment sizes emitted by netstack or
alter the MSS advertised by the endpoint. This is currently
being added only to unblock iperf3 on gVisor. Plumbing
this correctly requires a bit more work which will come
in separate CLs.
PiperOrigin-RevId: 257859112
Diffstat (limited to 'pkg/tcpip/header/ipv4.go')
| -rw-r--r-- | pkg/tcpip/header/ipv4.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/tcpip/header/ipv4.go b/pkg/tcpip/header/ipv4.go index 7da4c4845..7b8034de4 100644 --- a/pkg/tcpip/header/ipv4.go +++ b/pkg/tcpip/header/ipv4.go @@ -85,6 +85,10 @@ const ( // units, the header cannot exceed 15*4 = 60 bytes. IPv4MaximumHeaderSize = 60 + // MinIPFragmentPayloadSize is the minimum number of payload bytes that + // the first fragment must carry when an IPv4 packet is fragmented. + MinIPFragmentPayloadSize = 8 + // IPv4AddressSize is the size, in bytes, of an IPv4 address. IPv4AddressSize = 4 |