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2020-01-15net: bridge: vlan: add rtm range supportNikolay Aleksandrov2-14/+73
Add a new vlandb nl attribute - BRIDGE_VLANDB_ENTRY_RANGE which causes RTM_NEWVLAN/DELVAN to act on a range. Dumps now automatically compress similar vlans into ranges. This will be also used when per-vlan options are introduced and vlans' options match, they will be put into a single range which is encapsulated in one netlink attribute. We need to run similar checks as br_process_vlan_info() does because these ranges will be used for options setting and they'll be able to skip br_process_vlan_info(). Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15net: bridge: vlan: add del rtm message supportNikolay Aleksandrov1-0/+6
Adding RTM_DELVLAN support similar to RTM_NEWVLAN is simple, just need to map DELVLAN to DELLINK and register the handler. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15net: bridge: vlan: add new rtm message supportNikolay Aleksandrov3-6/+123
Add initial RTM_NEWVLAN support which can only create vlans, operating similar to the current br_afspec(). We will use it later to also change per-vlan options. Old-style (flag-based) vlan ranges are not allowed when using RTM messages, we will introduce vlan ranges later via a new nested attribute which would allow us to have all the information about a range encapsulated into a single nl attribute. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15net: bridge: vlan: add rtm definitions and dump supportNikolay Aleksandrov6-1/+203
This patch adds vlan rtm definitions: - NEWVLAN: to be used for creating vlans, setting options and notifications - DELVLAN: to be used for deleting vlans - GETVLAN: used for dumping vlan information Dumping vlans which can span multiple messages is added now with basic information (vid and flags). We use nlmsg_parse() to validate the header length in order to be able to extend the message with filtering attributes later. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15net: bridge: netlink: add extack error messages when processing vlansNikolay Aleksandrov2-14/+30
Add extack messages on vlan processing errors. We need to move the flags missing check after the "last" check since we may have "last" set but lack a range end flag in the next entry. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15net: bridge: vlan: add helpers to check for vlan id/range validityNikolay Aleksandrov2-10/+34
Add helpers to check if a vlan id or range are valid. The range helper must be called when range start or end are detected. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>