windows: add iphlpapi routing functions

NotifyRouteChange2 registers to be notified for changes to IP route
entries. Call GetIpForwardEntry2 on received row to retrieve complete
information.

GetIpForwardTable2 retrieves the full routing table.
FreeMibTable frees the buffer allocated by the functions that return
tables of network interfaces, addresses, and routes.

Change-Id: I9fba75f1f728661e45dc3092e35eb9099b0570dd
Reviewed-on: https://go-review.googlesource.com/c/sys/+/695195
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Quim Muntal <quimmuntal@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
database64128
2025-10-21 11:10:28 -07:00
committed by Quim Muntal
parent 28c5bda5d4
commit ea436ef09d
3 changed files with 128 additions and 0 deletions
+15
View File
@@ -892,8 +892,12 @@ const socket_error = uintptr(^uint32(0))
//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
//sys getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx
//sys GetIfEntry2Ex(level uint32, row *MibIfRow2) (errcode error) = iphlpapi.GetIfEntry2Ex
//sys GetIpForwardEntry2(row *MibIpForwardRow2) (errcode error) = iphlpapi.GetIpForwardEntry2
//sys GetIpForwardTable2(family uint16, table **MibIpForwardTable2) (errcode error) = iphlpapi.GetIpForwardTable2
//sys GetUnicastIpAddressEntry(row *MibUnicastIpAddressRow) (errcode error) = iphlpapi.GetUnicastIpAddressEntry
//sys FreeMibTable(memory unsafe.Pointer) = iphlpapi.FreeMibTable
//sys NotifyIpInterfaceChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyIpInterfaceChange
//sys NotifyRouteChange2(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyRouteChange2
//sys NotifyUnicastIpAddressChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyUnicastIpAddressChange
//sys CancelMibChangeNotify2(notificationHandle Handle) (errcode error) = iphlpapi.CancelMibChangeNotify2
@@ -916,6 +920,17 @@ type RawSockaddrInet6 struct {
Scope_id uint32
}
// RawSockaddrInet is a union that contains an IPv4, an IPv6 address, or an address family. See
// https://learn.microsoft.com/en-us/windows/win32/api/ws2ipdef/ns-ws2ipdef-sockaddr_inet.
//
// A [*RawSockaddrInet] may be converted to a [*RawSockaddrInet4] or [*RawSockaddrInet6] using
// unsafe, depending on the address family.
type RawSockaddrInet struct {
Family uint16
Port uint16
Data [6]uint32
}
type RawSockaddr struct {
Family uint16
Data [14]int8