kernel-5.4: backport fd16931a2f51 for chacha neon

Without this patch, the chacha block counter is not incremented on neon
rounds, resulting in incorrect calculations and corrupt packets.

This also switches to using `--no-numbered --zero-commit` so that future
diffs are smaller.

Reported-by: Hans Geiblinger <cybrnook2002@yahoo.com>
Reviewed-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: David Bauer <mail@david-bauer.net>
Cc: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/target/linux/generic/backport-5.4/080-wireguard-0086-wireguard-selftests-tie-socket-waiting-to-target-pid.patch b/target/linux/generic/backport-5.4/080-wireguard-0086-wireguard-selftests-tie-socket-waiting-to-target-pid.patch
new file mode 100644
index 0000000000..4530f0f49a
--- /dev/null
+++ b/target/linux/generic/backport-5.4/080-wireguard-0086-wireguard-selftests-tie-socket-waiting-to-target-pid.patch
@@ -0,0 +1,77 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jason A. Donenfeld" <Jason@zx2c4.com>
+Date: Tue, 4 Feb 2020 22:17:29 +0100
+Subject: [PATCH] wireguard: selftests: tie socket waiting to target pid
+
+commit 88f404a9b1d75388225b1c67b6dd327cb2182777 upstream.
+
+Without this, we wind up proceeding too early sometimes when the
+previous process has just used the same listening port. So, we tie the
+listening socket query to the specific pid we're interested in.
+
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
+---
+ tools/testing/selftests/wireguard/netns.sh | 17 ++++++++---------
+ 1 file changed, 8 insertions(+), 9 deletions(-)
+
+--- a/tools/testing/selftests/wireguard/netns.sh
++++ b/tools/testing/selftests/wireguard/netns.sh
+@@ -38,9 +38,8 @@ ip0() { pretty 0 "ip $*"; ip -n $netns0
+ ip1() { pretty 1 "ip $*"; ip -n $netns1 "$@"; }
+ ip2() { pretty 2 "ip $*"; ip -n $netns2 "$@"; }
+ sleep() { read -t "$1" -N 1 || true; }
+-waitiperf() { pretty "${1//*-}" "wait for iperf:5201"; while [[ $(ss -N "$1" -tlp 'sport = 5201') != *iperf3* ]]; do sleep 0.1; done; }
+-waitncatudp() { pretty "${1//*-}" "wait for udp:1111"; while [[ $(ss -N "$1" -ulp 'sport = 1111') != *ncat* ]]; do sleep 0.1; done; }
+-waitncattcp() { pretty "${1//*-}" "wait for tcp:1111"; while [[ $(ss -N "$1" -tlp 'sport = 1111') != *ncat* ]]; do sleep 0.1; done; }
++waitiperf() { pretty "${1//*-}" "wait for iperf:5201 pid $2"; while [[ $(ss -N "$1" -tlpH 'sport = 5201') != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; }
++waitncatudp() { pretty "${1//*-}" "wait for udp:1111 pid $2"; while [[ $(ss -N "$1" -ulpH 'sport = 1111') != *\"ncat\",pid=$2,fd=* ]]; do sleep 0.1; done; }
+ waitiface() { pretty "${1//*-}" "wait for $2 to come up"; ip netns exec "$1" bash -c "while [[ \$(< \"/sys/class/net/$2/operstate\") != up ]]; do read -t .1 -N 0 || true; done;"; }
+ 
+ cleanup() {
+@@ -119,22 +118,22 @@ tests() {
+ 
+ 	# TCP over IPv4
+ 	n2 iperf3 -s -1 -B 192.168.241.2 &
+-	waitiperf $netns2
++	waitiperf $netns2 $!
+ 	n1 iperf3 -Z -t 3 -c 192.168.241.2
+ 
+ 	# TCP over IPv6
+ 	n1 iperf3 -s -1 -B fd00::1 &
+-	waitiperf $netns1
++	waitiperf $netns1 $!
+ 	n2 iperf3 -Z -t 3 -c fd00::1
+ 
+ 	# UDP over IPv4
+ 	n1 iperf3 -s -1 -B 192.168.241.1 &
+-	waitiperf $netns1
++	waitiperf $netns1 $!
+ 	n2 iperf3 -Z -t 3 -b 0 -u -c 192.168.241.1
+ 
+ 	# UDP over IPv6
+ 	n2 iperf3 -s -1 -B fd00::2 &
+-	waitiperf $netns2
++	waitiperf $netns2 $!
+ 	n1 iperf3 -Z -t 3 -b 0 -u -c fd00::2
+ }
+ 
+@@ -207,7 +206,7 @@ n1 ping -W 1 -c 1 192.168.241.2
+ n1 wg set wg0 peer "$pub2" allowed-ips 192.168.241.0/24
+ exec 4< <(n1 ncat -l -u -p 1111)
+ ncat_pid=$!
+-waitncatudp $netns1
++waitncatudp $netns1 $ncat_pid
+ n2 ncat -u 192.168.241.1 1111 <<<"X"
+ read -r -N 1 -t 1 out <&4 && [[ $out == "X" ]]
+ kill $ncat_pid
+@@ -216,7 +215,7 @@ n1 wg set wg0 peer "$more_specific_key"
+ n2 wg set wg0 listen-port 9997
+ exec 4< <(n1 ncat -l -u -p 1111)
+ ncat_pid=$!
+-waitncatudp $netns1
++waitncatudp $netns1 $ncat_pid
+ n2 ncat -u 192.168.241.1 1111 <<<"X"
+ ! read -r -N 1 -t 1 out <&4 || false
+ kill $ncat_pid