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path: root/src/plugins/linux-cp/lcp_cli.c
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2022-09-19linux-cp: fix some CLI error messagesMatthew Smith1-79/+71
Type: fix If unrecognized input was provided to the commands which add or delete a pair, the error message was being created incorrectly and only displayed something like "unknown input `'". Provide the correct argument to format_unformat_error so that the actual unrecognized input is printed. There also was no error or useful information printed if only the base command were provided without any additional arguments. This should print a warning about what required data was missing. Reorganize code to handle this and to make sure that memory gets freed appropriately. Change-Id: If454714f50cf41b3b56cfadfbf017f1d160e13a4 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2022-03-25linux-cp: handle ipv4 routes when link goes downAlexander Chernavin1-0/+49
Type: improvement Currently, when the link goes down on an interface, routes that resolve through that interface and created with Nexthop API are removed by the kernel. However, IPv4 routes remain in the FIB because the kernel doesn't send any notifications about that. And for the plugin working with user-space applications that create routes in the kernel using Nexthop API there should be a mechanism to synchronize the FIB and the kernel in this case. With this change, add two new startup configuration options to the plugin to be able to control what should happen with static and dynamic routes managed by the plugin on link down: - del-static-on-link-down (disabled by default, delete routes created with the linux-cp static FIB source on link down), - del-dynamic-on-link-down (disabled by default, delete routes created with the linux-cp dynamic FIB source on link down). Then, monitor link state changes on interfaces for which a linux-cp pair exists. If the link goes down on one of the interfaces, process routes that resolve through that interface according to the new configurations. Signed-off-by: Alexander Chernavin <achernavin@netgate.com> Change-Id: I0fbaeeca3f3d1fcd22e8eebb08a0a4a3d0dfe5b8
2022-01-11linux-cp: Add VPP->Linux synchronizationPim van Pelt1-0/+62
Part 1 -- notes in https://ipng.ch/s/articles/2021/08/13/vpp-2.html Add the ability for VPP to copy out (sync) its state from the dataplane to Linux Interface Pairs, when they exist. Gated by a configuration flag (linux-cp { lcp-sync }), and by a CLI option to toggle on/off, synchronize the following events: - Interface state changes - Interface MTU changes - Interface IPv4/IPv6 address add/deletion In VPP, subints can have any link state and MTU, orthogonal to their phy. In Linux, setting admin-down on a phy forces its children to be down as well. Also, in Linux, MTU of children must not exceed that of the phy. Add a state synchronizer which walks over phy+subints to ensure Linux and VPP end up in the same consistent state. Part 2 -- notes in https://ipng.ch/s/articles/2021/08/15/vpp-3.html Add the ability for VPP to autocreate sub-interfaces of existing Linux Interface pairs. Gated by a configuration flag (linux-cp { lcp-auto-subint }), and by a CLI option to toggle on/off, synchronize the following event: - Sub-interface creation (dot1q, dot1ad, QinQ and QinAD) A few other changes: - Add two functions into netlink.[ch] to delete ip4 and ip6 addresses. - Remove a spurious logline (printing MTU) in netlink.c. - Resolve a TODO around vnet_sw_interface_supports_addressing() Type: improvement Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I34fc070e80af4013be58d7a8cbf64296cc760e4e Signed-off-by: Pim van Pelt <pim@ipng.nl>
2021-05-25linux-cp: A V2 variant of pair create API that returns the hostNeale Ranns1-1/+1
interface created Type: improvement Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I31a83cd50513078895078bae3ae11372d351ddcd
2021-02-17linux-cp: fix coverity defectMatthew Smith1-0/+6
Type: fix If no host interface name is passed to the CLI command which creates an interface pair, NULL gets passed to lcp_itf_pair_create() and a seg fault occurs. Check whether a host interface name was provided and fail gracefully if none was given. Change-Id: I82886f4c2ee710e206c751c34a74399112e9062c Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2021-02-04linux-cp: Linux Interface Mirroring for Control Plane IntegrationNeale Ranns1-0/+236
Type: feature please see FEATURE.yaml for details. Signed-off-by: Neale Ranns <nranns@cisco.com> Signed-off-by: Matthew Smith <mgsmith@netgate.com> Signed-off-by: Jon Loeliger <jdl@netgate.com> Signed-off-by: Pim van Pelt <pim@ipng.nl> Change-Id: I04a45c15c0838906aa787e06660fa29f39f755fa