> On 1 Oct 2022, at 17:35, Shawn Webb <[email protected]> wrote:
>
> On Sat, Oct 01, 2022 at 02:19:03PM +0000, Alexander V. Chernikov wrote:
>> The branch main has been updated by melifaro:
>>
>> URL:
>> https://cgit.FreeBSD.org/src/commit/?id=7e5bf68495cc0a8c9793a338a8a02009a7f6dbb6
>>
>> commit 7e5bf68495cc0a8c9793a338a8a02009a7f6dbb6
>> Author: Alexander V. Chernikov <[email protected]>
>> AuthorDate: 2022-01-20 21:39:21 +0000
>> Commit: Alexander V. Chernikov <[email protected]>
>> CommitDate: 2022-10-01 14:15:35 +0000
>>
>> netlink: add netlink support
>>
>> Netlinks is a communication protocol currently used in Linux kernel to
>> modify,
>> read and subscribe for nearly all networking state. Interfaces,
>> addresses, routes,
>> firewall, fibs, vnets, etc are controlled via netlink.
>> It is async, TLV-based protocol, providing 1-1 and 1-many communications.
>>
>> The current implementation supports the subset of NETLINK_ROUTE
>> family. To be more specific, the following is supported:
>> * Dumps:
>> - routes
>> - nexthops / nexthop groups
>> - interfaces
>> - interface addresses
>> - neighbors (arp/ndp)
>> * Notifications:
>> - interface arrival/departure
>> - interface address arrival/departure
>> - route addition/deletion
>> * Modifications:
>> - adding/deleting routes
>> - adding/deleting nexthops/nexthops groups
>> - adding/deleting neghbors
>> - adding/deleting interfaces (basic support only)
>> * Rtsock interaction
>> - route events are bridged both ways
>>
>> The implementation also supports the NETLINK_GENERIC family framework.
>>
>> Implementation notes:
>> Netlink is implemented via loadable/unloadable kernel module,
>> not touching many kernel parts.
>> Each netlink socket uses dedicated taskqueue to support async operations
>> that can sleep, such as interface creation. All message processing is
>> performed within these taskqueues.
>>
>> Compatibility:
>> Most of the Netlink data models specified above maps to FreeBSD concepts
>> nicely. Unmodified ip(8) binary correctly works with
>> interfaces, addresses, routes, nexthops and nexthop groups. Some
>> software such as net/bird require header-only modifications to compile
>> and work with FreeBSD netlink.
>>
>> Reviewed by: imp
>> Differential Revision: https://reviews.freebsd.org/D36002
>> MFC after: 2 months
>> ---
>> etc/mtree/BSD.include.dist | 4 +
>> sys/modules/Makefile | 1 +
>> sys/modules/netlink/Makefile | 17 +
>> sys/net/route.c | 11 +
>> sys/net/route/route_ctl.h | 7 +
>> sys/net/rtsock.c | 42 ++
>> sys/netlink/netlink.h | 257 +++++++++
>> sys/netlink/netlink_ctl.h | 102 ++++
>> sys/netlink/netlink_debug.h | 82 +++
>> sys/netlink/netlink_domain.c | 689 +++++++++++++++++++++++
>> sys/netlink/netlink_generic.c | 472 ++++++++++++++++
>> sys/netlink/netlink_generic.h | 112 ++++
>> sys/netlink/netlink_io.c | 528 ++++++++++++++++++
>> sys/netlink/netlink_linux.h | 54 ++
>> sys/netlink/netlink_message_parser.c | 472 ++++++++++++++++
>> sys/netlink/netlink_message_parser.h | 270 +++++++++
>> sys/netlink/netlink_message_writer.c | 686 +++++++++++++++++++++++
>> sys/netlink/netlink_message_writer.h | 250 +++++++++
>> sys/netlink/netlink_module.c | 228 ++++++++
>> sys/netlink/netlink_route.c | 135 +++++
>> sys/netlink/netlink_route.h | 43 ++
>> sys/netlink/netlink_var.h | 142 +++++
>> sys/netlink/route/common.h | 213 ++++++++
>> sys/netlink/route/iface.c | 857 +++++++++++++++++++++++++++++
>> sys/netlink/route/iface_drivers.c | 165 ++++++
>> sys/netlink/route/ifaddrs.h | 90 +++
>> sys/netlink/route/interface.h | 245 +++++++++
>> sys/netlink/route/neigh.c | 571 +++++++++++++++++++
>> sys/netlink/route/neigh.h | 105 ++++
>> sys/netlink/route/nexthop.c | 1000
>> ++++++++++++++++++++++++++++++++++
>> sys/netlink/route/nexthop.h | 102 ++++
>> sys/netlink/route/route.c | 972 +++++++++++++++++++++++++++++++++
>> sys/netlink/route/route.h | 366 +++++++++++++
>> sys/netlink/route/route_var.h | 101 ++++
>> 34 files changed, 9391 insertions(+)
>>
>
> Hey Alexander,
>
> This commit broke buildworld:
Should be fixed by 11ca01e9aa47 (currently building to see if that’s the last
one)
>
> ===> tests/atf_python/sys/net (includes)
> ===> etc (includes)
> make[3]: warning: /etc: Permission denied.
> ===> etc/termcap (includes)
> ===> etc/sendmail (includes)
> 53.93 real 36.66 user 11.99 sys
> cd /usr/src; time env MACHINE_ARCH=amd64 MACHINE=amd64 CPUTYPE= CC="cc
> -target x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" CXX="c++ -target
> x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" CPP="cpp -target
> x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" AS="as" AR="ar" LD="ld"
> LLVM_LINK="" NM=nm OBJCOPY="objcopy" RANLIB=ranlib STRINGS= SIZE="size"
> STRIPBIN="strip" INSTALL="install -U"
> PATH=/usr/obj/usr/src/amd64.amd64/tmp/bin:/usr/obj/usr/src/amd64.amd64/tmp/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/libexec::/sbin:/bin:/usr/sbin:/usr/bin
> SYSROOT=/usr/obj/usr/src/amd64.amd64/tmp make -f Makefile.inc1
> BWPHASE=includes DESTDIR=/usr/obj/usr/src/amd64.amd64/tmp test-includes
> cd /usr/src/tools/build/test-includes; MACHINE_ARCH=amd64 MACHINE=amd64
> CPUTYPE= CC="cc -target x86_64-unknown-freebsd14.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -target x86_64-unknown-freebsd14.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" CXX="c++ -target
> x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -target
> x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" CPP="cpp -target
> x86_64-unknown-freebsd14.0 --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -target x86_64-unknown-freebsd14.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin" AS="as" AR="ar" LD="ld"
> LLVM_LINK="" NM=nm OBJCOPY="objcopy" RANLIB=ranlib STRINGS= SIZE="size"
> STRIPBIN="strip" INSTALL="install -U"
> PATH=/usr/obj/usr/src/amd64.amd64/tmp/bin:/usr/obj/usr/src/amd64.amd64/tmp/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/libexec::/usr/obj/usr/src/amd64.amd64/tmp/bin:/usr/obj/usr/src/amd64.amd64/tmp/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/sbin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/bin:/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/libexec::/sbin:/bin:/usr/sbin:/usr/bin
> SYSROOT=/usr/obj/usr/src/amd64.amd64/tmp make
> DESTDIR=/usr/obj/usr/src/amd64.amd64/tmp test-includes
> cc -target x86_64-unknown-freebsd14.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -target x86_64-unknown-freebsd14.0
> --sysroot=/usr/obj/usr/src/amd64.amd64/tmp
> -B/usr/obj/usr/src/amd64.amd64/tmp/usr/bin -O2 -pipe -fno-common
> -DHARDENEDBSD -g -gz=zlib -mretpoline -flto -MD
> -MF.depend.netlink_netlink.o -MTnetlink_netlink.o -std=gnu99
> -Wno-format-zero-length -fstack-protector-strong -Wsystem-headers -Werror
> -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes
> -Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual
> -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter -Wcast-align
> -Wchar-subscripts -Wnested-externs -Wold-style-definition -Wno-pointer-sign
> -Wmissing-variable-declarations -Wthread-safety -Wno-empty-body
> -Wno-string-plus-int -Wno-unused-const-variable
> -Wno-error=unused-but-set-variable -Qunused-arguments -c
> netlink_netlink.c -o netlink_netlink.o
> netlink_netlink.c:1:10: fatal error: 'netlink/netlink.h' file not found
> #include <netlink/netlink.h>
> ^~~~~~~~~~~~~~~~~~~
> 1 error generated.
> *** Error code 1
>
> Stop.
> make[3]: stopped in /usr/src/tools/build/test-includes
> *** Error code 1
>
> Stop.
> make[2]: stopped in /usr/src
>
> Thanks,
>
> --
> Shawn Webb
> Cofounder / Security Engineer
> HardenedBSD
>
> https://git.hardenedbsd.org/hardenedbsd/pubkeys/-/raw/master/Shawn_Webb/03A4CBEBB82EA5A67D9F3853FF2E67A277F8E1FA.pub.asc
