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fix(windows): set MTU for IPv6 too (#3121)

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This can be seen in `Get-NetIPInterface` even if #3120 isn't merged
This commit is contained in:
Reactor Scram
2024-01-04 18:31:17 -06:00
committed by GitHub
parent d8264cf664
commit 720a50bafa
1 changed files with 33 additions and 12 deletions
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45
rust/connlib/tunnel/src/device_channel/tun_windows.rs
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@@ -15,7 +15,7 @@ use windows::Win32::{
IpHelper::{GetIpInterfaceEntry, SetIpInterfaceEntry, MIB_IPINTERFACE_ROW},
Ndis::NET_LUID_LH,
},
Networking::WinSock::AF_INET,
Networking::WinSock::{AF_INET, AF_INET6},
};
// TODO: Double-check that all these get dropped gracefully on disconnect
@@ -221,19 +221,40 @@ fn set_iface_config(luid: wintun::NET_LUID_LH, mtu: u32) -> Result<()> {
Value: unsafe { luid.Value },
};
let mut row = MIB_IPINTERFACE_ROW {
Family: AF_INET,
InterfaceLuid: luid,
..Default::default()
};
// Set MTU for IPv4
{
let mut row = MIB_IPINTERFACE_ROW {
Family: AF_INET,
InterfaceLuid: luid,
..Default::default()
};
unsafe { GetIpInterfaceEntry(&mut row) }?;
unsafe { GetIpInterfaceEntry(&mut row) }?;
row.NlMtu = mtu;
// https://stackoverflow.com/questions/54857292/setipinterfaceentry-returns-error-invalid-parameter
row.SitePrefixLength = 0;
// https://stackoverflow.com/questions/54857292/setipinterfaceentry-returns-error-invalid-parameter
row.SitePrefixLength = 0;
// Ignore error if we can't set everything
unsafe { SetIpInterfaceEntry(&mut row) }?;
// Set MTU for IPv4
row.NlMtu = mtu;
unsafe { SetIpInterfaceEntry(&mut row) }?;
}
// Set MTU for IPv6
{
let mut row = MIB_IPINTERFACE_ROW {
Family: AF_INET6,
InterfaceLuid: luid,
..Default::default()
};
unsafe { GetIpInterfaceEntry(&mut row) }?;
// https://stackoverflow.com/questions/54857292/setipinterfaceentry-returns-error-invalid-parameter
row.SitePrefixLength = 0;
// Set MTU for IPv4
row.NlMtu = mtu;
unsafe { SetIpInterfaceEntry(&mut row) }?;
}
Ok(())
}