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util/winutil: ensure domain controller address is used when retrieving remote profile information

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We cannot directly pass a flat domain name into NetUserGetInfo; we must
resolve the address of a domain controller first.

This PR implements the appropriate resolution mechanisms to do that, and
also exposes a couple of new utility APIs for future needs.

Fixes #12627

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
This commit is contained in:
Aaron Klotz
2024-06-26 12:08:38 -06:00
parent 0323dd01b2
commit 5f177090e3
5 changed files with 226 additions and 4 deletions
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19
util/winutil/zsyscall_windows.go
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@@ -42,12 +42,15 @@ func errnoErr(e syscall.Errno) error {
var (
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
modnetapi32 = windows.NewLazySystemDLL("netapi32.dll")
modrstrtmgr = windows.NewLazySystemDLL("rstrtmgr.dll")
moduserenv = windows.NewLazySystemDLL("userenv.dll")
procQueryServiceConfig2W = modadvapi32.NewProc("QueryServiceConfig2W")
procGetApplicationRestartSettings = modkernel32.NewProc("GetApplicationRestartSettings")
procRegisterApplicationRestart = modkernel32.NewProc("RegisterApplicationRestart")
procDsGetDcNameW = modnetapi32.NewProc("DsGetDcNameW")
procNetValidateName = modnetapi32.NewProc("NetValidateName")
procRmEndSession = modrstrtmgr.NewProc("RmEndSession")
procRmGetList = modrstrtmgr.NewProc("RmGetList")
procRmJoinSession = modrstrtmgr.NewProc("RmJoinSession")
@@ -78,6 +81,22 @@ func registerApplicationRestart(cmdLineExclExeName *uint16, flags uint32) (ret w
return
}
func dsGetDcName(computerName *uint16, domainName *uint16, domainGuid *windows.GUID, siteName *uint16, flags dsGetDcNameFlag, dcInfo **_DOMAIN_CONTROLLER_INFO) (ret error) {
r0, _, _ := syscall.Syscall6(procDsGetDcNameW.Addr(), 6, uintptr(unsafe.Pointer(computerName)), uintptr(unsafe.Pointer(domainName)), uintptr(unsafe.Pointer(domainGuid)), uintptr(unsafe.Pointer(siteName)), uintptr(flags), uintptr(unsafe.Pointer(dcInfo)))
if r0 != 0 {
ret = syscall.Errno(r0)
}
return
}
func netValidateName(server *uint16, name *uint16, account *uint16, password *uint16, nameType _NETSETUP_NAME_TYPE) (ret error) {
r0, _, _ := syscall.Syscall6(procNetValidateName.Addr(), 5, uintptr(unsafe.Pointer(server)), uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(account)), uintptr(unsafe.Pointer(password)), uintptr(nameType), 0)
if r0 != 0 {
ret = syscall.Errno(r0)
}
return
}
func rmEndSession(session _RMHANDLE) (ret error) {
r0, _, _ := syscall.Syscall(procRmEndSession.Addr(), 1, uintptr(session), 0, 0)
if r0 != 0 {