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[linux] Set a default MAC address for tap devices

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Avoid the need to always specify a local MAC address on the command
line by setting a default hardware MAC address (using the same default
address as for slirp devices).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2023-07-05 15:24:32 +01:00
parent 59d065c9ac
commit f3036fc213
1 changed files with 5 additions and 0 deletions
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5
src/drivers/linux/tap.c
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@@ -56,6 +56,10 @@ struct tap_nic {
int fd; int fd;
}; };
/** Default MAC address */
static const uint8_t tap_default_mac[ETH_ALEN] =
{ 0x52, 0x54, 0x00, 0x12, 0x34, 0x56 };
/** Open the TAP device */ /** Open the TAP device */
static int tap_open(struct net_device * netdev) static int tap_open(struct net_device * netdev)
{ {
@@ -202,6 +206,7 @@ static int tap_probe(struct linux_device *device, struct linux_device_request *r
nic = netdev->priv; nic = netdev->priv;
linux_set_drvdata(device, netdev); linux_set_drvdata(device, netdev);
netdev->dev = &device->dev; netdev->dev = &device->dev;
memcpy ( netdev->hw_addr, tap_default_mac, ETH_ALEN );
memset(nic, 0, sizeof(*nic)); memset(nic, 0, sizeof(*nic));
/* Look for the mandatory if setting */ /* Look for the mandatory if setting */