Revision 9e2b7fa2df4365e99934901da4fb4af52d81e820 authored by Martin Willi on 06 November 2020, 07:30:30 UTC, committed by Jakub Kicinski on 12 November 2020, 15:47:06 UTC
VRF devices use an optimized direct path on output if a default qdisc
is involved, calling Netfilter hooks directly. This path, however, does
not consider Netfilter rules completing asynchronously, such as with
NFQUEUE. The Netfilter okfn() is called for asynchronously accepted
packets, but the VRF never passes that packet down the stack to send
it out over the slave device. Using the slower redirect path for this
seems not feasible, as we do not know beforehand if a Netfilter hook
has asynchronously completing rules.
Fix the use of asynchronously completing Netfilter rules in OUTPUT and
POSTROUTING by using a special completion function that additionally
calls dst_output() to pass the packet down the stack. Also, slightly
adjust the use of nf_reset_ct() so that is called in the asynchronous
case, too.
Fixes: dcdd43c41e60 ("net: vrf: performance improvements for IPv4")
Fixes: a9ec54d1b0cd ("net: vrf: performance improvements for IPv6")
Signed-off-by: Martin Willi <martin@strongswan.org>
Link: https://lore.kernel.org/r/20201106073030.3974927-1-martin@strongswan.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 52755b6
.gitignore
# SPDX-License-Identifier: GPL-2.0-only
#
# NOTE! Don't add files that are generated in specific
# subdirectories here. Add them in the ".gitignore" file
# in that subdirectory instead.
#
# NOTE! Please use 'git ls-files -i --exclude-standard'
# command after changing this file, to see if there are
# any tracked files which get ignored after the change.
#
# Normal rules (sorted alphabetically)
#
.*
*.a
*.asn1.[ch]
*.bin
*.bz2
*.c.[012]*.*
*.dt.yaml
*.dtb
*.dtb.S
*.dwo
*.elf
*.gcno
*.gz
*.i
*.ko
*.lex.c
*.ll
*.lst
*.lz4
*.lzma
*.lzo
*.mod
*.mod.c
*.o
*.o.*
*.patch
*.s
*.so
*.so.dbg
*.su
*.symtypes
*.tab.[ch]
*.tar
*.xz
*.zst
Module.symvers
modules.builtin
modules.order
#
# Top-level generic files
#
/tags
/TAGS
/linux
/vmlinux
/vmlinux.32
/vmlinux.symvers
/vmlinux-gdb.py
/vmlinuz
/System.map
/Module.markers
/modules.builtin.modinfo
/modules.nsdeps
#
# RPM spec file (make rpm-pkg)
#
/*.spec
#
# Debian directory (make deb-pkg)
#
/debian/
#
# Snap directory (make snap-pkg)
#
/snap/
#
# tar directory (make tar*-pkg)
#
/tar-install/
#
# We don't want to ignore the following even if they are dot-files
#
!.clang-format
!.cocciconfig
!.get_maintainer.ignore
!.gitattributes
!.gitignore
!.mailmap
#
# Generated include files
#
/include/config/
/include/generated/
/include/ksym/
/arch/*/include/generated/
# stgit generated dirs
patches-*
# quilt's files
patches
series
# cscope files
cscope.*
ncscope.*
# gnu global files
GPATH
GRTAGS
GSYMS
GTAGS
# id-utils files
ID
*.orig
*~
\#*#
#
# Leavings from module signing
#
extra_certificates
signing_key.pem
signing_key.priv
signing_key.x509
x509.genkey
# Kconfig presets
/all.config
/alldef.config
/allmod.config
/allno.config
/allrandom.config
/allyes.config
# Kconfig savedefconfig output
/defconfig
# Kdevelop4
*.kdev4
# Clang's compilation database file
/compile_commands.json
# Documentation toolchain
sphinx_*/
Computing file changes ...
