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| author | Michael Brown | 2013-05-16 16:40:44 +0200 |
|---|---|---|
| committer | Michael Brown | 2013-05-16 16:41:20 +0200 |
| commit | c4bce43c3c4d3c5ebb2d926b58ad16dc9642c19d (patch) | |
| tree | 57b3c941b89894b20d551cd253983ffdab61ae0f /src/net/netdev_settings.c | |
| parent | [netdevice] Add "chip" setting (diff) | |
| download | ipxe-c4bce43c3c4d3c5ebb2d926b58ad16dc9642c19d.tar.gz ipxe-c4bce43c3c4d3c5ebb2d926b58ad16dc9642c19d.tar.xz ipxe-c4bce43c3c4d3c5ebb2d926b58ad16dc9642c19d.zip | |
[netdevice] Reset MAC address when asked to clear the "mac" setting
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net/netdev_settings.c')
| -rw-r--r-- | src/net/netdev_settings.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/net/netdev_settings.c b/src/net/netdev_settings.c index 8f66c553..028a62ca 100644 --- a/src/net/netdev_settings.c +++ b/src/net/netdev_settings.c @@ -61,10 +61,18 @@ struct setting chip_setting __setting ( SETTING_NETDEV ) = { */ static int netdev_store_mac ( struct net_device *netdev, const void *data, size_t len ) { + struct ll_protocol *ll_protocol = netdev->ll_protocol; + + /* Record new MAC address */ + if ( data ) { + if ( len != netdev->ll_protocol->ll_addr_len ) + return -EINVAL; + memcpy ( netdev->ll_addr, data, len ); + } else { + /* Reset MAC address if clearing setting */ + ll_protocol->init_addr ( netdev->hw_addr, netdev->ll_addr ); + } - if ( len != netdev->ll_protocol->ll_addr_len ) - return -EINVAL; - memcpy ( netdev->ll_addr, data, len ); return 0; } |