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simplify syscall consts used for requesting / parsing IPv4 packet info (#3919)

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Marten Seemann 2023-06-26 10:39:47 +02:00 • committed by GitHub
parent 4b0ca320a3
commit d361637419
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4 changed files with 8 additions and 11 deletions
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5
sys_conn_helper_darwin.go
View file

@ -5,9 +5,8 @@ package quic
import "golang.org/x/sys/unix"
const (
msgTypeIPTOS = unix.IP_RECVTOS
ipv4RECVPKTINFO = unix.IP_RECVPKTINFO
msgTypeIPv4PKTINFO = unix.IP_PKTINFO
msgTypeIPTOS = unix.IP_RECVTOS
ipv4PKTINFO = unix.IP_RECVPKTINFO
)
// ReadBatch only returns a single packet on OSX,

5
sys_conn_helper_freebsd.go
View file

@ -5,9 +5,8 @@ package quic
import "golang.org/x/sys/unix"
const (
msgTypeIPTOS = unix.IP_RECVTOS
ipv4RECVPKTINFO = 0x7
msgTypeIPv4PKTINFO = 0x7
msgTypeIPTOS = unix.IP_RECVTOS
ipv4PKTINFO = 0x7
)
const batchSize = 8

5
sys_conn_helper_linux.go
View file

@ -9,9 +9,8 @@ import (
)
const (
msgTypeIPTOS = unix.IP_TOS
ipv4RECVPKTINFO = unix.IP_PKTINFO
msgTypeIPv4PKTINFO = unix.IP_PKTINFO
msgTypeIPTOS = unix.IP_TOS
ipv4PKTINFO = unix.IP_PKTINFO
)
const batchSize = 8 // needs to smaller than MaxUint8 (otherwise the type of oobConn.readPos has to be changed)

4
sys_conn_oob.go
View file

@ -87,7 +87,7 @@ func newConn(c OOBCapablePacketConn, supportsDF bool) (*oobConn, error) {
errECNIPv6 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_RECVTCLASS, 1)
if needsPacketInfo {
errPIIPv4 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, ipv4RECVPKTINFO, 1)
errPIIPv4 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, ipv4PKTINFO, 1)
errPIIPv6 = unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_RECVPKTINFO, 1)
}
}); err != nil {
@ -188,7 +188,7 @@ func (c *oobConn) ReadPacket() (receivedPacket, error) {
switch hdr.Type {
case msgTypeIPTOS:
p.ecn = protocol.ECN(body[0] & ecnMask)
case msgTypeIPv4PKTINFO:
case ipv4PKTINFO:
// struct in_pktinfo {
// unsigned int ipi_ifindex; /* Interface index */
// struct in_addr ipi_spec_dst; /* Local address */