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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2023-10-18 21:02:52 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2023-10-18 21:02:52 +0200 |
| commit | 177caa7e4419d1b95bbf0423f6be6230c7101504 (patch) | |
| tree | add58988d7b424c14a4011a82aa7008883487cc8 | |
| parent | 42ec952eadc297efadc70b9911d5a59bcd2db4a6 (diff) | |
conn: simplify supportsUDPOffload
This allows a kernel to support UDP_GRO while not supporting
UDP_SEGMENT.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
| -rw-r--r-- | conn/features_linux.go | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/conn/features_linux.go b/conn/features_linux.go index e1fb57f..8959d93 100644 --- a/conn/features_linux.go +++ b/conn/features_linux.go @@ -18,15 +18,9 @@ func supportsUDPOffload(conn *net.UDPConn) (txOffload, rxOffload bool) { } err = rc.Control(func(fd uintptr) { _, errSyscall := unix.GetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_SEGMENT) - if errSyscall != nil { - return - } - txOffload = true + txOffload = errSyscall == nil opt, errSyscall := unix.GetsockoptInt(int(fd), unix.IPPROTO_UDP, unix.UDP_GRO) - if errSyscall != nil { - return - } - rxOffload = opt == 1 + rxOffload = errSyscall == nil && opt == 1 }) if err != nil { return false, false |