T8162: Migrate to ipt-NETFLOW fork

Switch to https://github.com/nuclearcat/ipt-netflow as it has up-to-date
kernel support.

Remove outdated patches.

3 files changed, 2 insertions, 216 deletions

diff --git a/scripts/package-build/linux-kernel/package.toml b/scripts/package-build/linux-kernel/package.toml
index ea8a87f2..2c419cb2 100644
--- a/scripts/package-build/linux-kernel/package.toml
+++ b/scripts/package-build/linux-kernel/package.toml
@@ -84,8 +84,8 @@ build_cmd = "build_realtek_r8152"
 
 [[packages]]
 name = "ipt-netflow"
-commit_id = "0eb2092e93"
-scm_url = "https://github.com/aabc/ipt-netflow"
+commit_id = "6135551"
+scm_url = "https://github.com/nuclearcat/ipt-netflow"
 build_cmd = "build_ipt_netflow"
 
 [dependencies]
diff --git a/scripts/package-build/linux-kernel/patches/ipt-netflow/0001-Fix-prandom_u32-_max-get_random_u32-_below.patch b/scripts/package-build/linux-kernel/patches/ipt-netflow/0001-Fix-prandom_u32-_max-get_random_u32-_below.patch
deleted file mode 100644
index a7e8a909..00000000
--- a/scripts/package-build/linux-kernel/patches/ipt-netflow/0001-Fix-prandom_u32-_max-get_random_u32-_below.patch
+++ /dev/null
@@ -1,184 +0,0 @@
-From 4afd69cf67de6f48bf54bce4a248c60b36078fe8 Mon Sep 17 00:00:00 2001
-From: Jaco Kroon <jaco@uls.co.za>
-Date: Mon, 17 Mar 2025 16:43:30 +0200
-Subject: [PATCH 1/2] Fix prandom_u32{,_max} => get_random_u32{,_below}
-
-For backwards compatiblity this gets pretty nasty.  This should work
-fairly well.
-
-Signed-off-by: Jaco Kroon <jaco@uls.co.za>
----
- compat.h       | 33 +++++++++++++++++++++++++--------
- gen_compat_def | 44 ++++++++++++++++++++++++++++++++++++++------
- ipt_NETFLOW.c  |  6 +++---
- 3 files changed, 66 insertions(+), 17 deletions(-)
-
-diff --git a/compat.h b/compat.h
-index 8461c3d..b44f861 100644
---- a/compat.h
-+++ b/compat.h
-@@ -108,17 +108,34 @@ union nf_inet_addr {
- # define time_is_after_jiffies(a) time_before(jiffies, a)
- #endif
- 
--#if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0)
--# if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
--#  define prandom_u32 get_random_int
--# elif LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0)
--#  define prandom_u32 random32
-+#ifndef HAVE_GET_RANDOM_U32
-+# ifdef HAVE_PRANDOM_U32
-+#  ifdef HAVE_PRANDOM_H
-+#   include <linux/prandom.h>
-+#  endif
-+static inline u32 get_random_u32() {
-+	return prandom_u32();
-+}
-+# else
-+#  pragma error Need fallback for get_random_u32
-+# endif
- #endif
--#define prandom_u32_max compat_prandom_u32_max
--static inline u32 prandom_u32_max(u32 ep_ro)
-+
-+#ifndef HAVE_GET_RANDOM_U32_BELOW
-+# ifdef HAVE_PRANDOM_U32_MAX
-+#  ifdef HAVE_PRANDOM_H
-+#   include <linux/prandom.h>
-+#  endif
-+static inline u32 get_random_u32_below(u32 ep_ro)
- {
--	return (u32)(((u64) prandom_u32() * ep_ro) >> 32);
-+	return prandom_u32_max(ep_ro);
- }
-+# else
-+static inline u32 get_random_u32_below(u32 ep_ro)
-+{
-+	return (u32)(((u64) get_random_u32() * ep_ro) >> 32);
-+}
-+# endif
- #endif
- 
- #ifndef min_not_zero
-diff --git a/gen_compat_def b/gen_compat_def
-index a9cb95e..6440d5c 100755
---- a/gen_compat_def
-+++ b/gen_compat_def
-@@ -1,4 +1,4 @@
--#!/bin/bash -efu
-+#!/bin/bash -fu
- # SPDX-License-Identifier: GPL-2.0-only
- #
- # Generate defines based on kernel having some symbols declared.
-@@ -21,7 +21,7 @@ WD=cc-test-build
- mkdir -p $WD
- cd ./$WD || fatal "cannot cd to $WD"
- 
--# args: HAVE_SUMBOL symbol include
-+# args: HAVE_SYMBOL symbol [include] [success] [failure]
- kbuild_test_compile() {
-   local cmd
- 
-@@ -30,14 +30,15 @@ kbuild_test_compile() {
-   cmd="make -s -B -C $KDIR M=$PWD modules"
-   echo "$cmd" > log
-   if $cmd >> log 2>&1; then
--    echo " declared" >&2
--    [ "$2" ] && echo "// $2 is declared ${3:+in <$3>}"
-+    echo " ${4-declared}" >&2
-+    [ "$2" ] && echo "// $2 ${4-is declared}${3:+ in <$3>}"
-     echo "#define HAVE_$1"
-     echo
-+    return 0
-   else
--    echo " undeclared" >&2
-+    echo " ${5-undeclared}" >&2
-     echo "#undef HAVE_$1"
--    echo "// ${2:-symbol} is undeclared${3:+ in <$3>}. Compile:"
-+    echo "// ${2:-symbol} ${5-is undeclared}${3:+ in <$3>}. Compile:"
-     sed  "s/^/\/\/   /" test.c
-     echo "// Output:"
-     sed  "s/^/\/\/   /" log
-@@ -56,6 +57,7 @@ kbuild_test_compile() {
-       echo >&2
-       exit 3
-     fi
-+    return 1
-   fi
- }
- 
-@@ -105,6 +107,22 @@ kbuild_test_member() {
- 	typeof(((struct $structname*)0)->$member) test;
- 	EOF
- }
-+
-+# Test that a header is available/exist
-+kbuild_test_header() {
-+  echo -n "Test header $*" >&2
-+  structname=${1%.*}
-+  member=${1#*.}
-+  def=${1^^}
-+  def=${def##*/}
-+  def=${def//./_}
-+  kbuild_test_compile $def "header $1" "" "exists" "doesn't exist" <<-EOF
-+	#include <linux/module.h>
-+	#include <$1>
-+	MODULE_LICENSE("GPL");
-+	EOF
-+}
-+
- echo "// Autogenerated for $KDIR"
- echo
- 
-@@ -129,6 +147,20 @@ kbuild_test_ref    totalram_pages linux/mm.h
- kbuild_test_member nf_ct_event_notifier.ct_event net/netfilter/nf_conntrack_ecache.h
- # 6.4: 0199849acd07 ("sysctl: remove register_sysctl_paths()")
- kbuild_test_symbol register_sysctl_paths linux/sysctl.h
-+# Do we have get_random_u32_below
-+kbuild_test_symbol get_random_u32_below linux/random.h
-+# Do we have get_random_u32
-+kbuild_test_symbol get_random_u32 linux/random.h
-+
-+# prandom functions moved from random.h to prandom.h recentish.
-+# We use these for fallback for the above only.
-+if kbuild_test_header linux/prandom.h; then
-+  prand_h=linux/prandom.h
-+else
-+  prand_h=linux/random.h
-+fi
-+kbuild_test_symbol prandom_u32 $prand_h
-+kbuild_test_symbol prandom_u32_max $prand_h
- 
- echo "// End of compat_def.h"
- 
-diff --git a/ipt_NETFLOW.c b/ipt_NETFLOW.c
-index eee8074..fefe809 100644
---- a/ipt_NETFLOW.c
-+++ b/ipt_NETFLOW.c
-@@ -4454,7 +4454,7 @@ static int netflow_scan_and_export(const int flush)
- 				val = nf->sampler_count % interval;
- 				break;
- 			case SAMPLER_RANDOM:
--				val = prandom_u32_max(interval);
-+				val = get_random_u32_below(interval);
- 				break;
- 			default: /* SAMPLER_HASH */
- 				val = 0;
-@@ -5709,12 +5709,12 @@ static int __init ipt_netflow_init(void)
- 	}
- 	parse_sampler(sampler);
- #ifdef SAMPLING_HASH
--	hash_seed = prandom_u32();
-+	hash_seed = get_random_u32();
- #endif
- #endif
- 
- #ifdef ENABLE_RANDOM_TEMPLATE_IDS
--	template_ids = FLOWSET_DATA_FIRST | prandom_u32_max(0x00010000);
-+	template_ids = FLOWSET_DATA_FIRST | get_random_u32_below(0x00010000);
- #endif
- 
- #ifdef SNMP_RULES
--- 
-2.50.1
-
diff --git a/scripts/package-build/linux-kernel/patches/ipt-netflow/0002-Fix-lu-llu-where-64bit.patch b/scripts/package-build/linux-kernel/patches/ipt-netflow/0002-Fix-lu-llu-where-64bit.patch
deleted file mode 100644
index f28ab062..00000000
--- a/scripts/package-build/linux-kernel/patches/ipt-netflow/0002-Fix-lu-llu-where-64bit.patch
+++ /dev/null
@@ -1,30 +0,0 @@
-From b2e39db56640ba7d437a5edbd67889425969623e Mon Sep 17 00:00:00 2001
-From: Kyrylo Yatsenko <hedrok@gmail.com>
-Date: Sat, 30 Aug 2025 22:20:02 +0300
-Subject: [PATCH 2/2] Fix lu -> llu where 64bit
-
----
- ipt_NETFLOW.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/ipt_NETFLOW.c b/ipt_NETFLOW.c
-index fefe809..08e9442 100644
---- a/ipt_NETFLOW.c
-+++ b/ipt_NETFLOW.c
-@@ -759,11 +759,11 @@ static int nf_seq_show(struct seq_file *seq, void *v)
- 		    sampler_mode_string(),
- 		    get_sampler_interval());
- 		if (get_sampler_mode() != SAMPLER_HASH)
--			seq_printf(seq, " Flows selected %lu, discarded %lu.",
-+			seq_printf(seq, " Flows selected %llu, discarded %llu.",
- 			    atomic64_read(&flows_selected),
- 			    atomic64_read(&flows_observed) - atomic64_read(&flows_selected));
- 		else
--			seq_printf(seq, " Flows selected %lu.", atomic64_read(&flows_selected));
-+			seq_printf(seq, " Flows selected %llu.", atomic64_read(&flows_selected));
- 		seq_printf(seq, " Pkts selected %llu, discarded %llu.\n",
- 		    t.pkts_selected,
- 		    t.pkts_observed - t.pkts_selected);
--- 
-2.50.1
-