This patch adds a new mode of operation to macvlan, called "source". It allows one to set a list of allowed mac address, which is used to match against source mac address from received frames on underlying interface. This enables creating mac based VLAN associations, instead of standard port or tag based. The feature is useful to deploy 802.1x mac based behavior, where drivers of underlying interfaces doesn't allows that. Configuration is done through the netlink interface using e.g.: ip link add link eth0 name macvlan0 type macvlan mode source ip link add link eth0 name macvlan1 type macvlan mode source ip link set link dev macvlan0 type macvlan macaddr add 00:11:11:11:11:11 ip link set link dev macvlan0 type macvlan macaddr add 00:22:22:22:22:22 ip link set link dev macvlan0 type macvlan macaddr add 00:33:33:33:33:33 ip link set link dev macvlan1 type macvlan macaddr add 00:33:33:33:33:33 ip link set link dev macvlan1 type macvlan macaddr add 00:44:44:44:44:44 This allows clients with MAC addresses 00:11:11:11:11:11, 00:22:22:22:22:22 to be part of only VLAN associated with macvlan0 interface. Clients with MAC addresses 00:44:44:44:44:44 with only VLAN associated with macvlan1 interface. And client with MAC address 00:33:33:33:33:33 to be associated with both VLANs. Based on work of Stefan Gula <steweg@gmail.com> v8: last version of Stefan Gula for Kernel 3.2.1 v9: rework onto linux-next 2014-03-12 by Michael Braun add MACADDR_SET command, enable to configure mac for source mode while creating interface v10: - reduce indention level - rename source_list to source_entry - use aligned 64bit ether address - use hash_64 instead of addr[5] v11: - rebase for 3.14 / linux-next 20.04.2014 v12 - rebase for linux-next 2014-09-25
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| @@ -303,6 +303,10 @@ enum { · 302 unmodified lines | ||
| 303 | 303 | IFLA_MACVLAN_UNSPEC, |
| 304 | 304 | IFLA_MACVLAN_MODE, |
| 305 | 305 | IFLA_MACVLAN_FLAGS, |
| 306 | + IFLA_MACVLAN_MACADDR_MODE, | |
| 307 | + IFLA_MACVLAN_MACADDR, | |
| 308 | + IFLA_MACVLAN_MACADDR_DATA, | |
| 309 | + IFLA_MACVLAN_MACADDR_COUNT, | |
| 306 | 310 | __IFLA_MACVLAN_MAX, |
| 307 | 311 | }; |
| 308 | 312 | |
| @@ -313,6 +317,14 @@ enum macvlan_mode { · 4 unmodified lines | ||
| 313 | 317 | MACVLAN_MODE_VEPA = 2, /* talk to other ports through ext bridge */ |
| 314 | 318 | MACVLAN_MODE_BRIDGE = 4, /* talk to bridge ports directly */ |
| 315 | 319 | MACVLAN_MODE_PASSTHRU = 8,/* take over the underlying device */ |
| 320 | + MACVLAN_MODE_SOURCE = 16,/* use source MAC address list to assign */ | |
| 321 | +}; | |
| 322 | + | |
| 323 | +enum macvlan_macaddr_mode { | |
| 324 | + MACVLAN_MACADDR_ADD, | |
| 325 | + MACVLAN_MACADDR_DEL, | |
| 326 | + MACVLAN_MACADDR_FLUSH, | |
| 327 | + MACVLAN_MACADDR_SET, | |
| 316 | 328 | }; |
| 317 | 329 | |
| 318 | 330 | #define MACVLAN_FLAG_NOPROMISC 1 |