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conf: Don't fail if the template interface doesn't have a MAC address

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...simply resort to using locally-administered address (LAA) as
host-side source, instead.

Pick 02:00:00:00:00:00, to make it clear that we don't actually care
about that address, and also to match the 00 (Administratively
Assigned Identifier) quadrant of SLAP (RFC 8948).

Otherwise, pasta refuses to start if the template is a tun or
Wireguard interface.

Link: https://bugs.passt.top/show_bug.cgi?id=49
Link: https://github.com/containers/podman/issues/22320
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio
2024-04-11 23:23:04 +02:00
parent eca8baa028
commit 27f1c762b1
2 changed files with 9 additions and 4 deletions
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1
util.h
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@@ -91,6 +91,7 @@
#define PORT_IS_EPHEMERAL(port) ((port) >= PORT_EPHEMERAL_MIN)
#define MAC_ZERO ((uint8_t [ETH_ALEN]){ 0 })
#define MAC_LAA ((uint8_t [ETH_ALEN]){ BIT(1), 0, 0, 0, 0, 0 })
#define MAC_IS_ZERO(addr) (!memcmp((addr), MAC_ZERO, ETH_ALEN))
#ifndef __bswap_constant_16