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Diffstat (limited to 'pkg/tcpip/transport/tcp/endpoint.go')
| -rw-r--r-- | pkg/tcpip/transport/tcp/endpoint.go | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go index 7d18e3612..5656890f6 100644 --- a/pkg/tcpip/transport/tcp/endpoint.go +++ b/pkg/tcpip/transport/tcp/endpoint.go @@ -1596,6 +1596,16 @@ func (e *endpoint) maybeEnableSACKPermitted(synOpts *header.TCPSynOptions) { } } +// maxOptionSize return the maximum size of TCP options. +func (e *endpoint) maxOptionSize() (size int) { + var maxSackBlocks [header.TCPMaxSACKBlocks]header.SACKBlock + options := e.makeOptions(maxSackBlocks[:]) + size = len(options) + putOptions(options) + + return size +} + // completeState makes a full copy of the endpoint and returns it. This is used // before invoking the probe. The state returned may not be fully consistent if // there are intervening syscalls when the state is being copied. |