Commit Graph

141 Commits (e320435a6a5858e7b80c296c5f5e35d8d4c845b6)

Author SHA1 Message Date
Pawel Dembicki aff965a415 generic: backport Wistron Neweb D19Q1 patches
Backport patches which adds suport for the Wistron Neweb D19Q1 3G/4G modem,
used in D-Link DWR-960.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
2020-04-08 13:57:50 +01:00
Rafał Miłecki ec8e8e2ef0 kernel: backport out-of-memory fix for non-Ethernet devices
Doing up & down on non-Ethernet devices (e.g. monitor mode interface)
was consuming memory.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2020-03-11 08:40:45 +01:00
Rafał Miłecki 5cc0493c2b kernel: backport mtd partition address fix sent upstream
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2020-03-09 11:49:42 +01:00
Kevin Darbyshire-Bryant daa218a288 kernel: act_ctinfo: really fix backport this time
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-01-24 14:35:31 +00:00
Kevin Darbyshire-Bryant 943cc81b0f kernel: act_ctinfo: fixup build error on 4.14
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-01-24 13:39:19 +00:00
Koen Vandeputte 76254cb75e kernel: bump 4.14 to 4.14.167
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2020-01-24 13:14:33 +01:00
Kevin Darbyshire-Bryant 7a57e82f28 kernel: act_ctinfo: backport memory leak fix
[ Upstream commit 09d4f10a5e78d76a53e3e584f1e6a701b6d24108 ]

Implement a cleanup method to properly free ci->params

BUG: memory leak
unreferenced object 0xffff88811746e2c0 (size 64):
 comm "syz-executor617", pid 7106, jiffies 4294943055 (age 14.250s)
 hex dump (first 32 bytes):
   00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   c0 34 60 84 ff ff ff ff 00 00 00 00 00 00 00 00  .4`.............
 backtrace:
   [<0000000015aa236f>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
   [<0000000015aa236f>] slab_post_alloc_hook mm/slab.h:586 [inline]
   [<0000000015aa236f>] slab_alloc mm/slab.c:3320 [inline]
   [<0000000015aa236f>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3549
   [<000000002c946bd1>] kmalloc include/linux/slab.h:556 [inline]
   [<000000002c946bd1>] kzalloc include/linux/slab.h:670 [inline]
   [<000000002c946bd1>] tcf_ctinfo_init+0x21a/0x530 net/sched/act_ctinfo.c:236
   [<0000000086952cca>] tcf_action_init_1+0x400/0x5b0 net/sched/act_api.c:944
   [<000000005ab29bf8>] tcf_action_init+0x135/0x1c0 net/sched/act_api.c:1000
   [<00000000392f56f9>] tcf_action_add+0x9a/0x200 net/sched/act_api.c:1410
   [<0000000088f3c5dd>] tc_ctl_action+0x14d/0x1bb net/sched/act_api.c:1465
   [<000000006b39d986>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
   [<00000000fd6ecace>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
   [<0000000047493d02>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
   [<00000000bdcf8286>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
   [<00000000bdcf8286>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
   [<00000000fc5b92d9>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917
   [<00000000da84d076>] sock_sendmsg_nosec net/socket.c:639 [inline]
   [<00000000da84d076>] sock_sendmsg+0x54/0x70 net/socket.c:659
   [<0000000042fb2eee>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330
   [<000000008f23f67e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384
   [<00000000d838e4f6>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417
   [<00000000289a9cb1>] __do_sys_sendmsg net/socket.c:2426 [inline]
   [<00000000289a9cb1>] __se_sys_sendmsg net/socket.c:2424 [inline]
   [<00000000289a9cb1>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424

Fixes: 24ec483cec98 ("net: sched: Introduce act_ctinfo action")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2020-01-24 11:25:26 +00:00
Koen Vandeputte 2b4654f74f kernel: bump 4.14 to 4.14.165
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2020-01-20 13:41:49 +01:00
Koen Vandeputte b5480de4d1 kernel: bump 4.14 to 4.14.164
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2020-01-20 13:41:49 +01:00
Hauke Mehrtens 1bb90a28e4 kernel: bump 4.14 to 4.14.162
Refreshed all patches.

Compile-tested on: ramips
Runtime-tested on: ramips

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2020-01-05 00:43:33 +01:00
Hauke Mehrtens 25b422a041 kernel: bump 4.14 to 4.14.160
Refreshed all patches.

Compile-tested on: ipq40xx, apm821xx
Runtime-tested on: ipq40xx

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-12-24 17:45:54 +01:00
Koen Vandeputte d395583d69 kernel: bump 4.14 to 4.14.158
Refreshed all patches.

Altered patches:
- 400-mtd-add-rootfs-split-support.patch

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-12-10 09:50:42 +01:00
Kevin Darbyshire-Bryant 89b8dd62ce kernel: act_ctinfo: fix updated backport on 4.14
It turns out my 4.14 testing had a rather large flaw in it and the
'extack' mechanism isn't quite ready.  Remove the extack stuff from this
backport.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-12-04 12:06:26 +00:00
Kevin Darbyshire-Bryant 1d608a10a0 kernel: act_ctinfo: update backport
Since the original backports from kernel 5.3 a few things have been
tweaked by kernel bumps & other upstream changes.  Update the backport
to reflect upstream as closely as possible and remove the bitrot.

Functions remain the same, error reporting improved.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-12-03 21:41:35 +00:00
Koen Vandeputte 414b7c107a kernel: bump 4.14 to 4.14.156
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-11-29 09:59:49 +01:00
Yousong Zhou b3779e920e kernel: nf_conntrack_rtcache: fix WARNING on rmmod
Fixes b7c58a1ee ("kernel: nf_conntrack_rtcache: fix cleanup on netns
delete and rmmod")

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2019-11-23 18:07:14 +00:00
Yousong Zhou 1c5df850a0 kernel: nf_conntrack_rtcache: fix WARNING on forward path
Fixes b7c58a1ee ("kernel: nf_conntrack_rtcache: fix cleanup on netns
delete and rmmod")

Resolves FS#2624

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2019-11-23 17:28:32 +00:00
Yousong Zhou b7c58a1eeb kernel: nf_conntrack_rtcache: fix cleanup on netns delete and rmmod
Fixes FS#1472, FS#2353, FS#2426

Fixes: b3f95490 ("kernel: generic: Add kernel 4.14 support")
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-11-23 10:47:51 +00:00
Koen Vandeputte d6aea46a50 kernel: bump 4.14 to 4.14.154
Refreshed all patches.

Altered patches:
- 902-debloat_proc.patch
- 040-dmaengine-qcom-bam-Process-multiple-pending-descript.patch
- 807-usb-support-layerscape.patch
- 809-flexcan-support-layerscape.patch
- 816-pcie-support-layerscape.patch

Remove upstreamed:
- 150-MIPS-bmips-mark-exception-vectors-as-char-arrays.patch
- 303-spi-nor-enable-4B-opcodes-for-mx66l51235l.patch

New symbols:
X86_INTEL_MPX
X86_INTEL_MEMORY_PROTECTION_KEYS
X86_INTEL_TSX_MODE_OFF
X86_INTEL_TSX_MODE_ON
X86_INTEL_TSX_MODE_AUTO
SGL_ALLOC

Compile-tested on: cns3xxx, x86_64
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-11-19 14:59:03 +01:00
Martin Schiller edbadec843 kernel: fix LED netdev trigger on interface rename
This fixes the netdev LED trigger for interfaces, which are renamed
during initialization (e.g. ppp interfaces).

Fixes: FS#2193
Fixes: FS#2239
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
2019-11-07 00:10:18 +01:00
Koen Vandeputte 0787b7247f kernel: bump 4.14 to 4.14.150
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-10-30 11:16:25 +01:00
Koen Vandeputte 1cfe412dd2 kernel: bump 4.14 to 4.14.149
Refreshed all patches.

Altered patches:
- 820-sec-support-layerscape.patch

Compile-tested on: cns3xxx, layerscape
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-10-15 16:11:28 +02:00
Koen Vandeputte 4648533ca4 kernel: bump 4.14 to 4.14.148
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-10-08 15:51:06 +02:00
Felix Fietkau c8933ce533 kernel: fix issues with output routing in flow offload
Replace an old cleanup patch that never made it upstream with the proper
upstream fix. This patch was incompatible with the recent changes that
affected the way that the flow tuple dst entry was used.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-09-25 20:11:20 +02:00
Felix Fietkau 442ecce761 kernel: port 4.19 xt_FLOWOFFLOAD changes to 4.14
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-09-25 18:16:39 +02:00
Koen Vandeputte 6a4f4246fb kernel: bump 4.14 to 4.14.143
Refreshed all patches.

Remove upstreamed:
- 390-v5.3-net-sched-fix-action-ipt-crash.patch

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-09-13 16:40:29 +02:00
Cong Wang 7735cce0c5 kernel: net_sched: fix a NULL pointer deref in ipt action
The net pointer in struct xt_tgdtor_param is not explicitly
initialized therefore is still NULL when dereferencing it.
So we have to find a way to pass the correct net pointer to
ipt_destroy_target().

The best way I find is just saving the net pointer inside the per
netns struct tcf_idrinfo, which could make this patch smaller.

Fixes: 0c66dc1ea3f0 ("netfilter: conntrack: register hooks in netns when needed by ruleset")
Reported-and-tested-by: Tony Ambardar <itugrok@xxxxxxxxx>
Cc: Jamal Hadi Salim <jhs@xxxxxxxxxxxx>
Cc: Jiri Pirko <jiri@xxxxxxxxxxx>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>

[Backport for kernel v4.19 and v4.14]
[Bug Link: https://bugzilla.kernel.org/show_bug.cgi?id=204681]
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2019-09-01 18:38:04 +02:00
Koen Vandeputte b5407887bc kernel: bump 4.14 to 4.14.140
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-08-28 13:08:20 +02:00
Koen Vandeputte 873a8c5078 kernel: bump 4.14 to 4.14.138
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-08-14 18:23:08 +02:00
Koen Vandeputte f5acf56483 kernel: bump 4.14 to 4.14.137
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-08-09 18:30:29 +02:00
Koen Vandeputte 96f1d4b02b kernel: bump 4.14 to 4.14.136
Refreshed all patches.

Altered patches:
- 306-v4.16-netfilter-remove-saveroute-indirection-in-struct-nf_.patch

Remove upstreamed:
- 100-powerpc-4xx-uic-clear-pending-interrupt-after-irq-ty.patch
- 088-0002-i2c-qup-fixed-releasing-dma-without-flush-operation.patch
- 500-arm64-dts-marvell-Fix-A37xx-UART0-register-size.patch

Fixes:
- CVE-2019-13648
- CVE-2019-10207

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-08-06 11:52:47 +02:00
Koen Vandeputte 1d45ed1477 kernel: bump 4.14 to 4.14.134
Refreshed all patches.

Remove upstreamed:
- 049-v4.20-mips-remove-superfluous-check-for-linux.patch
- 303-MIPS-Fix-bounds-check-virt_addr_valid.patch

Fixes:
- CVE-2019-3846
- CVE-2019-3900

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-07-31 16:51:46 +02:00
Fredrik Olofsson 7d96c301d6 kernel: cherry pick patch removing __linux__ check
This is already included in newer upstream. Needed to build BPF programs
using the MIPS kernel include files.

Without this patch, clang fails with "#error Use a Linux compiler or
give up." in sgidefs.h when building BPF programs.

Signed-off-by: Fredrik Olofsson <fredrik.olofsson@anyfinetworks.com>
2019-07-10 16:56:16 +02:00
Koen Vandeputte 0051fff171 kernel: bump 4.14 to 4.14.132
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-07-09 17:03:10 +02:00
Koen Vandeputte 4589f23943 kernel: bump 4.14 to 4.14.129
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-24 16:36:30 +02:00
Kevin Darbyshire-Bryant 5273fb6b21 kernel: update act_ctinfo
Follow upstream changes - header file changes
no executable  difference at all

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-20 21:12:24 +01:00
Koen Vandeputte 6592dddd15 kernel: bump 4.14 to 4.14.128
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-20 15:48:48 +02:00
Koen Vandeputte 1e3487b359 kernel: bump 4.14 to 4.14.127
Refreshed all patches.

Fixes:

- CVE-2019-11479
- CVE-2019-11478
- CVE-2019-11477

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-18 14:47:53 +02:00
Rafał Miłecki 4d11c4c378 kernel: backport 4.18 patch adding DMI_PRODUCT_SKU
It's needed for applying some hardware quirks. This fixes:
drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c:60:20: error: 'DMI_PRODUCT_SKU' undeclared here (not in a function); did you mean 'DMI_PRODUCT_UUID'?
    DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),

Fixes: 8888cb725d ("mac80211: brcm: backport remaining brcmfmac 5.2 patches")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-06-17 06:53:07 +02:00
Koen Vandeputte a7e68927d0 kernel: bump 4.14 to 4.14.125 (FS#2305 FS#2297)
Refreshed all patches.

This bump contains upstream commits which seem to avoid (not properly fix)
the errors as seen in FS#2305 and FS#2297

Altered patches:
- 403-net-mvneta-convert-to-phylink.patch
- 410-sfp-hack-allow-marvell-10G-phy-support-to-use-SFP.patch

Compile-tested on: ar71xx, cns3xxx, imx6, mvebu, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-12 15:04:09 +02:00
Kevin Darbyshire-Bryant b8a72dfd28 kernel: backport act_ctinfo
ctinfo is a new tc filter action module.  It is designed to restore
information contained in firewall conntrack marks to other packet fields
and is typically used on packet ingress paths.  At present it has two
independent sub-functions or operating modes, DSCP restoration mode &
skb mark restoration mode.

The DSCP restore mode:

This mode copies DSCP values that have been placed in the firewall
conntrack mark back into the IPv4/v6 diffserv fields of relevant
packets.

The DSCP restoration is intended for use and has been found useful for
restoring ingress classifications based on egress classifications across
links that bleach or otherwise change DSCP, typically home ISP Internet
links.  Restoring DSCP on ingress on the WAN link allows qdiscs such as
but by no means limited to CAKE to shape inbound packets according to
policies that are easier to set & mark on egress.

Ingress classification is traditionally a challenging task since
iptables rules haven't yet run and tc filter/eBPF programs are pre-NAT
lookups, hence are unable to see internal IPv4 addresses as used on the
typical home masquerading gateway.  Thus marking the connection in some
manner on egress for later restoration of classification on ingress is
easier to implement.

Parameters related to DSCP restore mode:

dscpmask - a 32 bit mask of 6 contiguous bits and indicate bits of the
conntrack mark field contain the DSCP value to be restored.

statemask - a 32 bit mask of (usually) 1 bit length, outside the area
specified by dscpmask.  This represents a conditional operation flag
whereby the DSCP is only restored if the flag is set.  This is useful to
implement a 'one shot' iptables based classification where the
'complicated' iptables rules are only run once to classify the
connection on initial (egress) packet and subsequent packets are all
marked/restored with the same DSCP.  A mask of zero disables the
conditional behaviour ie. the conntrack mark DSCP bits are always
restored to the ip diffserv field (assuming the conntrack entry is found
& the skb is an ipv4/ipv6 type)

e.g. dscpmask 0xfc000000 statemask 0x01000000

|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP       | unused | flag  |unused   |
|-----------------------0x01---000000---|
      |                   |
      |                   |
      ---|             Conditional flag
         v             only restore if set
|-ip diffserv-|
| 6 bits      |
|-------------|

The skb mark restore mode (cpmark):

This mode copies the firewall conntrack mark to the skb's mark field.
It is completely the functional equivalent of the existing act_connmark
action with the additional feature of being able to apply a mask to the
restored value.

Parameters related to skb mark restore mode:

mask - a 32 bit mask applied to the firewall conntrack mark to mask out
bits unwanted for restoration.  This can be useful where the conntrack
mark is being used for different purposes by different applications.  If
not specified and by default the whole mark field is copied (i.e.
default mask of 0xffffffff)

e.g. mask 0x00ffffff to mask out the top 8 bits being used by the
aforementioned DSCP restore mode.

|----0x00----conntrack mark----ffffff---|
| Bits 31-24 |                          |
| DSCP & flag|      some value here     |
|---------------------------------------|
			|
			|
			v
|------------skb mark-------------------|
|            |                          |
|  zeroed    |                          |
|---------------------------------------|

Overall parameters:

zone - conntrack zone

control - action related control (reclassify | pipe | drop | continue |
ok | goto chain <CHAIN_INDEX>)

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make suitable adjustments for backporting to 4.14 & 4.19
and add to SCHED_MODULES_FILTER

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 15:41:07 +01:00
Kevin Darbyshire-Bryant 24e09bac48 Revert "kernel: backport act_ctinfo"
This reverts commit 7c50182e0c.

Produces build error:
Package kmod-sched is missing dependencies for the following libraries:
nf_conntrack.ko

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 10:45:15 +01:00
Kevin Darbyshire-Bryant 7c50182e0c kernel: backport act_ctinfo
ctinfo is a new tc filter action module.  It is designed to restore
information contained in firewall conntrack marks to other packet fields
and is typically used on packet ingress paths.  At present it has two
independent sub-functions or operating modes, DSCP restoration mode &
skb mark restoration mode.

The DSCP restore mode:

This mode copies DSCP values that have been placed in the firewall
conntrack mark back into the IPv4/v6 diffserv fields of relevant
packets.

The DSCP restoration is intended for use and has been found useful for
restoring ingress classifications based on egress classifications across
links that bleach or otherwise change DSCP, typically home ISP Internet
links.  Restoring DSCP on ingress on the WAN link allows qdiscs such as
but by no means limited to CAKE to shape inbound packets according to
policies that are easier to set & mark on egress.

Ingress classification is traditionally a challenging task since
iptables rules haven't yet run and tc filter/eBPF programs are pre-NAT
lookups, hence are unable to see internal IPv4 addresses as used on the
typical home masquerading gateway.  Thus marking the connection in some
manner on egress for later restoration of classification on ingress is
easier to implement.

Parameters related to DSCP restore mode:

dscpmask - a 32 bit mask of 6 contiguous bits and indicate bits of the
conntrack mark field contain the DSCP value to be restored.

statemask - a 32 bit mask of (usually) 1 bit length, outside the area
specified by dscpmask.  This represents a conditional operation flag
whereby the DSCP is only restored if the flag is set.  This is useful to
implement a 'one shot' iptables based classification where the
'complicated' iptables rules are only run once to classify the
connection on initial (egress) packet and subsequent packets are all
marked/restored with the same DSCP.  A mask of zero disables the
conditional behaviour ie. the conntrack mark DSCP bits are always
restored to the ip diffserv field (assuming the conntrack entry is found
& the skb is an ipv4/ipv6 type)

e.g. dscpmask 0xfc000000 statemask 0x01000000

|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP       | unused | flag  |unused   |
|-----------------------0x01---000000---|
      |                   |
      |                   |
      ---|             Conditional flag
         v             only restore if set
|-ip diffserv-|
| 6 bits      |
|-------------|

The skb mark restore mode (cpmark):

This mode copies the firewall conntrack mark to the skb's mark field.
It is completely the functional equivalent of the existing act_connmark
action with the additional feature of being able to apply a mask to the
restored value.

Parameters related to skb mark restore mode:

mask - a 32 bit mask applied to the firewall conntrack mark to mask out
bits unwanted for restoration.  This can be useful where the conntrack
mark is being used for different purposes by different applications.  If
not specified and by default the whole mark field is copied (i.e.
default mask of 0xffffffff)

e.g. mask 0x00ffffff to mask out the top 8 bits being used by the
aforementioned DSCP restore mode.

|----0x00----conntrack mark----ffffff---|
| Bits 31-24 |                          |
| DSCP & flag|      some value here     |
|---------------------------------------|
			|
			|
			v
|------------skb mark-------------------|
|            |                          |
|  zeroed    |                          |
|---------------------------------------|

Overall parameters:

zone - conntrack zone

control - action related control (reclassify | pipe | drop | continue |
ok | goto chain <CHAIN_INDEX>)

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make suitable adjustments for backporting to 4.14 & 4.19

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 09:41:26 +01:00
Koen Vandeputte f442b306f9 kernel: bump 4.14 to 4.14.120
Refreshed all patches.

Remove upstreamed:
- 103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch
- 060-fix-oxnas-rps-dt-match.patch

Altered patches:
- 0067-generic-Mangle-bootloader-s-kernel-arguments.patch
- 006-mvebu-Mangle-bootloader-s-kernel-arguments.patch
- 996-generic-Mangle-bootloader-s-kernel-arguments.patch

Compile-tested on: ar71xx, cns3xxx, imx6, mvebu, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-21 09:45:15 +02:00
Koen Vandeputte 09050b6fe2 kernel: bump 4.14 to 4.14.118
Refreshed all patches.

Remove upstreamed:
- 060-v5.1-serial-ar933x_uart-Fix-build-failure-with-disabled-c.patch

Altered:
- 143-gpio-fix-device-tree-gpio-hogs-on-dual-role-gpio-pin.patch

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-13 19:17:41 +02:00
Koen Vandeputte b765f4be40 kernel: bump 4.14 to 4.14.114
Refreshed all patches.

Altered patches:
- 150-bridge_allow_receiption_on_disabled_port.patch
- 201-extra_optimization.patch

Remove upstreamed:
- 022-0006-crypto-crypto4xx-properly-set-IV-after-de-and-encryp.patch

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-02 12:59:26 +02:00
Daniel Golle b6acb7b718 kernel: move and replace accepted patch
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2019-04-11 19:21:55 +02:00
Koen Vandeputte 5387bc9cbb kernel: bump 4.14 to 4.14.111
Refreshed all patches.

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-04-08 14:53:39 +02:00
Koen Vandeputte 5eac37624f kernel: bump 4.14 to 4.14.110
Refreshed all patches.

Compile-tested on: ar71xx, cns3xxx, imx6, x86_64
Runtime-tested on: ar71xx, cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-04-08 12:07:28 +02:00
Rafał Miłecki ebed4b6dd0 kernel: backport upstream ubifs default compression selection fix
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-04-04 11:19:33 +02:00