diff options
author | Daniel Golle <daniel@makrotopia.org> | 2022-03-21 01:16:48 +0000 |
---|---|---|
committer | Daniel Golle <daniel@makrotopia.org> | 2022-03-21 13:11:56 +0000 |
commit | 786bf7fdaca4c75e7eba6e9aa3a8b5775fd21186 (patch) | |
tree | 926fecb2b1f6ce1e42ba7ef4c7aab8e68dfd214c /target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch | |
parent | 9470160c350d15f765c33d6c1db15d6c4709a64c (diff) | |
download | upstream-786bf7fdaca4c75e7eba6e9aa3a8b5775fd21186.tar.gz upstream-786bf7fdaca4c75e7eba6e9aa3a8b5775fd21186.tar.bz2 upstream-786bf7fdaca4c75e7eba6e9aa3a8b5775fd21186.zip |
kernel: delete Linux 5.4 config and patches
As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)
Diffstat (limited to 'target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch')
-rw-r--r-- | target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch b/target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch deleted file mode 100644 index 2d3fe01a75..0000000000 --- a/target/linux/generic/hack-5.4/645-netfilter-connmark-introduce-set-dscpmark.patch +++ /dev/null @@ -1,212 +0,0 @@ -From eda40b8c8c82e0f2789d6bc8bf63846dce2e8f32 Mon Sep 17 00:00:00 2001 -From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> -Date: Sat, 23 Mar 2019 09:29:49 +0000 -Subject: [PATCH] netfilter: connmark: introduce set-dscpmark - -set-dscpmark is a method of storing the DSCP of an ip packet into -conntrack mark. In combination with a suitable tc filter action -(act_ctinfo) DSCP values are able to be stored in the mark on egress and -restored on ingress across links that otherwise alter or bleach DSCP. - -This is useful for qdiscs such as CAKE which are able to shape according -to policies based on DSCP. - -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. - -x_tables CONNMARK set-dscpmark target solves the problem of storing the -DSCP to the conntrack mark in a way suitable for the new act_ctinfo tc -action to restore. - -The set-dscpmark option accepts 2 parameters, a 32bit 'dscpmask' and a -32bit 'statemask'. The dscp mask must be 6 contiguous bits and -represents the area where the DSCP will be stored in the connmark. The -state mask is a minimum 1 bit length mask that must not overlap with the -dscpmask. It represents a flag which is set when the DSCP has been -stored in the conntrack mark. 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 state -mask of zero disables the setting of a status bit/s. - -example syntax with a suitably modified iptables user space application: - -iptables -A QOS_MARK_eth0 -t mangle -j CONNMARK --set-dscpmark 0xfc000000/0x01000000 - -Would store the DSCP in the top 6 bits of the 32bit mark field, and use -the LSB of the top byte as the 'DSCP has been stored' marker. - -|----0xFC----conntrack mark----000000---| -| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0| -| DSCP | unused | flag |unused | -|-----------------------0x01---000000---| - ^ ^ - | | - ---| Conditional flag - | set this when dscp -|-ip diffserv-| stored in mark -| 6 bits | -|-------------| - -an identically configured tc action to restore looks like: - -tc filter show dev eth0 ingress -filter parent ffff: protocol all pref 10 u32 chain 0 -filter parent ffff: protocol all pref 10 u32 chain 0 fh 800: ht divisor 1 -filter parent ffff: protocol all pref 10 u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1: not_in_hw - match 00000000/00000000 at 0 - action order 1: ctinfo zone 0 pipe - index 2 ref 1 bind 1 dscp 0xfc000000/0x1000000 - - action order 2: mirred (Egress Redirect to device ifb4eth0) stolen - index 1 ref 1 bind 1 - -|----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 | -|-------------| - -Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> ---- - include/uapi/linux/netfilter/xt_connmark.h | 10 ++++ - net/netfilter/xt_connmark.c | 55 ++++++++++++++++++---- - 2 files changed, 57 insertions(+), 8 deletions(-) - ---- a/include/uapi/linux/netfilter/xt_connmark.h -+++ b/include/uapi/linux/netfilter/xt_connmark.h -@@ -20,6 +20,11 @@ enum { - }; - - enum { -+ XT_CONNMARK_VALUE = (1 << 0), -+ XT_CONNMARK_DSCP = (1 << 1) -+}; -+ -+enum { - D_SHIFT_LEFT = 0, - D_SHIFT_RIGHT, - }; -@@ -34,6 +39,11 @@ struct xt_connmark_tginfo2 { - __u8 shift_dir, shift_bits, mode; - }; - -+struct xt_connmark_tginfo3 { -+ __u32 ctmark, ctmask, nfmask; -+ __u8 shift_dir, shift_bits, mode, func; -+}; -+ - struct xt_connmark_mtinfo1 { - __u32 mark, mask; - __u8 invert; ---- a/net/netfilter/xt_connmark.c -+++ b/net/netfilter/xt_connmark.c -@@ -24,12 +24,13 @@ MODULE_ALIAS("ipt_connmark"); - MODULE_ALIAS("ip6t_connmark"); - - static unsigned int --connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo2 *info) -+connmark_tg_shift(struct sk_buff *skb, const struct xt_connmark_tginfo3 *info) - { - enum ip_conntrack_info ctinfo; - u_int32_t new_targetmark; - struct nf_conn *ct; - u_int32_t newmark; -+ u_int8_t dscp; - - ct = nf_ct_get(skb, &ctinfo); - if (ct == NULL) -@@ -37,12 +38,24 @@ connmark_tg_shift(struct sk_buff *skb, c - - switch (info->mode) { - case XT_CONNMARK_SET: -- newmark = (ct->mark & ~info->ctmask) ^ info->ctmark; -- if (info->shift_dir == D_SHIFT_RIGHT) -- newmark >>= info->shift_bits; -- else -- newmark <<= info->shift_bits; -+ newmark = ct->mark; -+ if (info->func & XT_CONNMARK_VALUE) { -+ newmark = (newmark & ~info->ctmask) ^ info->ctmark; -+ if (info->shift_dir == D_SHIFT_RIGHT) -+ newmark >>= info->shift_bits; -+ else -+ newmark <<= info->shift_bits; -+ } else if (info->func & XT_CONNMARK_DSCP) { -+ if (skb->protocol == htons(ETH_P_IP)) -+ dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2; -+ else if (skb->protocol == htons(ETH_P_IPV6)) -+ dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2; -+ else /* protocol doesn't have diffserv */ -+ break; - -+ newmark = (newmark & ~info->ctmark) | -+ (info->ctmask | (dscp << info->shift_bits)); -+ } - if (ct->mark != newmark) { - ct->mark = newmark; - nf_conntrack_event_cache(IPCT_MARK, ct); -@@ -81,20 +94,36 @@ static unsigned int - connmark_tg(struct sk_buff *skb, const struct xt_action_param *par) - { - const struct xt_connmark_tginfo1 *info = par->targinfo; -- const struct xt_connmark_tginfo2 info2 = { -+ const struct xt_connmark_tginfo3 info3 = { - .ctmark = info->ctmark, - .ctmask = info->ctmask, - .nfmask = info->nfmask, - .mode = info->mode, -+ .func = XT_CONNMARK_VALUE - }; - -- return connmark_tg_shift(skb, &info2); -+ return connmark_tg_shift(skb, &info3); - } - - static unsigned int - connmark_tg_v2(struct sk_buff *skb, const struct xt_action_param *par) - { - const struct xt_connmark_tginfo2 *info = par->targinfo; -+ const struct xt_connmark_tginfo3 info3 = { -+ .ctmark = info->ctmark, -+ .ctmask = info->ctmask, -+ .nfmask = info->nfmask, -+ .mode = info->mode, -+ .func = XT_CONNMARK_VALUE -+ }; -+ -+ return connmark_tg_shift(skb, &info3); -+} -+ -+static unsigned int -+connmark_tg_v3(struct sk_buff *skb, const struct xt_action_param *par) -+{ -+ const struct xt_connmark_tginfo3 *info = par->targinfo; - - return connmark_tg_shift(skb, info); - } -@@ -165,6 +194,16 @@ static struct xt_target connmark_tg_reg[ - .targetsize = sizeof(struct xt_connmark_tginfo2), - .destroy = connmark_tg_destroy, - .me = THIS_MODULE, -+ }, -+ { -+ .name = "CONNMARK", -+ .revision = 3, -+ .family = NFPROTO_UNSPEC, -+ .checkentry = connmark_tg_check, -+ .target = connmark_tg_v3, -+ .targetsize = sizeof(struct xt_connmark_tginfo3), -+ .destroy = connmark_tg_destroy, -+ .me = THIS_MODULE, - } - }; - |