diff options
| author | Michael Brown | 2017-09-06 11:49:22 +0200 |
|---|---|---|
| committer | Michael Brown | 2017-09-06 11:52:30 +0200 |
| commit | 8047baf7c66601f4e3aa14a3dcb60f3679f03a79 (patch) | |
| tree | 209095577913c40c9e716d15aab6baacb47d2488 /src/net | |
| parent | [peerdist] Gather and report peer statistics during download (diff) | |
| download | ipxe-8047baf7c66601f4e3aa14a3dcb60f3679f03a79.tar.gz ipxe-8047baf7c66601f4e3aa14a3dcb60f3679f03a79.tar.xz ipxe-8047baf7c66601f4e3aa14a3dcb60f3679f03a79.zip | |
[netdevice] Add "hwaddr" setting
Expose the underlying hardware address as a setting. For IPoIB
devices, this provides scripts with access to the Infiniband GUID.
Requested-by: Allen, Benjamin S. <bsallen@alcf.anl.gov>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/netdev_settings.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/src/net/netdev_settings.c b/src/net/netdev_settings.c index c54288d4..cc2e1035 100644 --- a/src/net/netdev_settings.c +++ b/src/net/netdev_settings.c @@ -45,6 +45,11 @@ const struct setting mac_setting __setting ( SETTING_NETDEV, mac ) = { .description = "MAC address", .type = &setting_type_hex, }; +const struct setting hwaddr_setting __setting ( SETTING_NETDEV, hwaddr ) = { + .name = "hwaddr", + .description = "Hardware address", + .type = &setting_type_hex, +}; const struct setting bustype_setting __setting ( SETTING_NETDEV, bustype ) = { .name = "bustype", .description = "Bus type", @@ -78,7 +83,7 @@ const struct setting mtu_setting __setting ( SETTING_NETDEV, mtu ) = { }; /** - * Store MAC address setting + * Store link-layer address setting * * @v netdev Network device * @v data Setting data, or NULL to clear setting @@ -103,7 +108,7 @@ static int netdev_store_mac ( struct net_device *netdev, } /** - * Fetch MAC address setting + * Fetch link-layer address setting * * @v netdev Network device * @v data Buffer to fill with setting data @@ -112,11 +117,30 @@ static int netdev_store_mac ( struct net_device *netdev, */ static int netdev_fetch_mac ( struct net_device *netdev, void *data, size_t len ) { + size_t max_len = netdev->ll_protocol->ll_addr_len; - if ( len > netdev->ll_protocol->ll_addr_len ) - len = netdev->ll_protocol->ll_addr_len; + if ( len > max_len ) + len = max_len; memcpy ( data, netdev->ll_addr, len ); - return netdev->ll_protocol->ll_addr_len; + return max_len; +} + +/** + * Fetch hardware address setting + * + * @v netdev Network device + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int netdev_fetch_hwaddr ( struct net_device *netdev, void *data, + size_t len ) { + size_t max_len = netdev->ll_protocol->hw_addr_len; + + if ( len > max_len ) + len = max_len; + memcpy ( data, netdev->hw_addr, len ); + return max_len; } /** @@ -253,6 +277,7 @@ struct netdev_setting_operation { /** Network device settings */ static struct netdev_setting_operation netdev_setting_operations[] = { { &mac_setting, netdev_store_mac, netdev_fetch_mac }, + { &hwaddr_setting, NULL, netdev_fetch_hwaddr }, { &bustype_setting, NULL, netdev_fetch_bustype }, { &busloc_setting, NULL, netdev_fetch_busloc }, { &busid_setting, NULL, netdev_fetch_busid }, |