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| author | Zeling Feng <zeling@google.com> | 2021-08-19 13:12:50 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-08-19 13:15:40 -0700 |
| commit | 50ed6b2e0994225b9bffa63b57a42da2d05e02b9 (patch) | |
| tree | b023743da3d581c22e62bb3b224aab249a451e6b /pkg/tcpip/stack | |
| parent | a4ae5fed32c09d5c09b4d540b9d5faa8fcd5dda1 (diff) | |
Use a hash function to generate tcp timestamp offset
Also fix an option parsing error in checker.TCPTimestampChecker while I am here.
PiperOrigin-RevId: 391828329
Diffstat (limited to 'pkg/tcpip/stack')
| -rw-r--r-- | pkg/tcpip/stack/stack.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/tcpip/stack/stack.go b/pkg/tcpip/stack/stack.go index e0c5e5e28..8e5c6edbf 100644 --- a/pkg/tcpip/stack/stack.go +++ b/pkg/tcpip/stack/stack.go @@ -160,6 +160,10 @@ type Stack struct { // This is required to prevent potential ACK loops. // Setting this to 0 will disable all rate limiting. tcpInvalidRateLimit time.Duration + + // tsOffsetSecret is the secret key for generating timestamp offsets + // initialized at stack startup. + tsOffsetSecret uint32 } // UniqueID is an abstract generator of unique identifiers. @@ -383,6 +387,7 @@ func New(opts Options) *Stack { Max: DefaultMaxBufferSize, }, tcpInvalidRateLimit: defaultTCPInvalidRateLimit, + tsOffsetSecret: randomGenerator.Uint32(), } // Add specified network protocols. |