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target: generic: fix xt_FLOWOFFLOAD patches

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Fixes: #11939, #11943
This commit is contained in:
coolsnowwolf 2024-03-02 23:15:24 +08:00
parent d75705cfc4
commit f903cc8970
3 changed files with 31 additions and 10 deletions
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8
target/linux/generic/hack-5.15/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
View File

@ -98,7 +98,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
--- /dev/null
+++ b/net/netfilter/xt_FLOWOFFLOAD.c
@@ -0,0 +1,698 @@
@@ -0,0 +1,696 @@
+/*
+ * Copyright (C) 2018-2021 Felix Fietkau <nbd@nbd.name>
+ *
@ -622,8 +622,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!flow)
+ goto err_flow_alloc;
+
+ if (flow_offload_route_init(flow, &route) < 0)
+ goto err_flow_add;
+ flow_offload_route_init(flow, &route);
+
+ if (tcph) {
+ ct->proto.tcp.seen[0].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
@ -642,13 +641,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ xt_flowoffload_check_device(table, devs[0]);
+ xt_flowoffload_check_device(table, devs[1]);
+
+ dst_release(route.tuple[!dir].dst);
+
+ return XT_CONTINUE;
+
+err_flow_add:
+ flow_offload_free(flow);
+err_flow_alloc:
+ dst_release(route.tuple[dir].dst);
+ dst_release(route.tuple[!dir].dst);
+err_flow_route:
+ clear_bit(IPS_OFFLOAD_BIT, &ct->status);

9
target/linux/generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch
View File

@ -59,7 +59,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
--- /dev/null
+++ b/net/netfilter/xt_FLOWOFFLOAD.c
@@ -0,0 +1,698 @@
@@ -0,0 +1,697 @@
+/*
+ * Copyright (C) 2018-2021 Felix Fietkau <nbd@nbd.name>
+ *
@ -583,8 +583,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!flow)
+ goto err_flow_alloc;
+
+ if (flow_offload_route_init(flow, &route) < 0)
+ goto err_flow_add;
+ flow_offload_route_init(flow, &route);
+
+ if (tcph) {
+ ct->proto.tcp.seen[0].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
@ -597,19 +596,19 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (!net)
+ write_pnet(&table->ft.net, xt_net(par));
+
+ __set_bit(NF_FLOW_HW_BIDIRECTIONAL, &flow->flags);
+ if (flow_offload_add(&table->ft, flow) < 0)
+ goto err_flow_add;
+
+ xt_flowoffload_check_device(table, devs[0]);
+ xt_flowoffload_check_device(table, devs[1]);
+
+ dst_release(route.tuple[!dir].dst);
+
+ return XT_CONTINUE;
+
+err_flow_add:
+ flow_offload_free(flow);
+err_flow_alloc:
+ dst_release(route.tuple[dir].dst);
+ dst_release(route.tuple[!dir].dst);
+err_flow_route:
+ clear_bit(IPS_OFFLOAD_BIT, &ct->status);

24
target/linux/generic/pending-6.1/704-netfilter-nf_tables-fix-bidirectional-offload-regres.patch Normal file
View File

@ -0,0 +1,24 @@
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 14 Feb 2024 15:24:41 +0100
Subject: [PATCH] netfilter: nf_tables: fix bidirectional offload regression
Commit 8f84780b84d6 ("netfilter: flowtable: allow unidirectional rules")
made unidirectional flow offload possible, while completely ignoring (and
breaking) bidirectional flow offload for nftables.
Add the missing flag that was left out as an exercise for the reader :)
Cc: Vlad Buslov <vladbu@nvidia.com>
Fixes: 8f84780b84d6 ("netfilter: flowtable: allow unidirectional rules")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -357,6 +357,7 @@ static void nft_flow_offload_eval(const
ct->proto.tcp.seen[1].flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
}
+ __set_bit(NF_FLOW_HW_BIDIRECTIONAL, &flow->flags);
ret = flow_offload_add(flowtable, flow);
if (ret < 0)
goto err_flow_add;