f7e1bb951d
There are three ways in which IP addresses will want to be copied
from VPP into the companion Linux devices:
1) set interface ip address ... adds an IPv4 or IPv6 address
- this is handled by lcp_itf_ip[46]_add_del_interface_addr() which
is a callback installed in lcp_itf_pair_init()
2) set interface ip address del ... removes them
- also handled by lcp_itf_ip[46]_add_del_interface_addr() but
curiously there is no upstream vnet_netlink_del_ip[46]_addr() so
I wrote them inline here - I will try to get them upstreamed, as
they appear to be obvious companions in vnet/device/netlink.h
3) Upon LIP creation, it could be that there are L3 addresses already
on the VPP interface. If so, set them with lcp_itf_set_interface_addr()
This means that now, at any time a new LIP is created, its state from
VPP is fully copied over (MTU, Link state, IPv4/IPv6 addresses)!
At runtime, new addresses can be set/removed as well.
63 lines
1.4 KiB
CMake
63 lines
1.4 KiB
CMake
# Copyright (c) 2020 Cisco and/or its affiliates.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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vpp_find_path(LIBNL3_INCLUDE_DIR NAMES libnl3/netlink/route/link/vlan.h)
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if (NOT LIBNL3_INCLUDE_DIR)
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message(WARNING "-- libnl3 headers not found - lcpng plugin disabled")
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return()
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endif()
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vpp_plugin_find_library(lcpng LIBNL3_LIB libnl-3.so)
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vpp_plugin_find_library(lcpng LIBNL3_ROUTE_LIB libnl-route-3.so.200)
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include_directories(${LIBNL3_INCLUDE_DIR}/libnl3)
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include_directories(${LIBMNL_INCLUDE_DIR})
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add_vpp_library(lcpng
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SOURCES
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lcpng_interface.c
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lcpng_adj.c
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lcpng_if_sync.c
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lcpng.c
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LINK_LIBRARIES
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${LIBNL3_LIB}
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${LIBNL3_ROUTE_LIB}
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INSTALL_HEADERS
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lcpng_interface.h
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lcpng.h
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)
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add_vpp_plugin(lcpng_if
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SOURCES
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lcpng_if_api.c
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lcpng_if_cli.c
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lcpng_if_node.c
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API_FILES
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lcpng_if.api
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LINK_LIBRARIES
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lcpng
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)
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add_vpp_plugin(lcpng_unittest
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SOURCES
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test/lcpng_unittest.c
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LINK_LIBRARIES
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lcpng
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)
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