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Merge pull request #4355 from majek:marek/swallow-SO_RCVBUFFORCE-error 

PiperOrigin-RevId: 335714100
This commit is contained in:
gVisor bot 2020-10-06 14:02:07 -07:00
parent 1336af78d5 6f5114446a
commit b761330ca7
1 changed files with 11 additions and 2 deletions
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13
runsc/sandbox/network.go
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@ -309,11 +309,20 @@ func createSocket(iface net.Interface, ifaceLink netlink.Link, enableGSO bool) (
const bufSize = 4 << 20 // 4MB.
if err := syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_RCVBUFFORCE, bufSize); err != nil {
return nil, fmt.Errorf("failed to increase socket rcv buffer to %d: %v", bufSize, err)
syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_RCVBUF, bufSize)
sz, _ := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_RCVBUF)
if sz < bufSize {
log.Warningf("Failed to increase rcv buffer to %d on SOCK_RAW on %s. Current buffer %d: %v", bufSize, iface.Name, sz, err)
}
}
if err := syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_SNDBUFFORCE, bufSize); err != nil {
return nil, fmt.Errorf("failed to increase socket snd buffer to %d: %v", bufSize, err)
syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_SNDBUF, bufSize)
sz, _ := syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_SNDBUF)
if sz < bufSize {
log.Warningf("Failed to increase snd buffer to %d on SOCK_RAW on %s. Curent buffer %d: %v", bufSize, iface.Name, sz, err)
}
}
return &socketEntry{deviceFile, gsoMaxSize}, nil