From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file
---
kernel/net/ipv6/sysctl_net_ipv6.c | 38 +++++++++++++-------------------------
1 files changed, 13 insertions(+), 25 deletions(-)
diff --git a/kernel/net/ipv6/sysctl_net_ipv6.c b/kernel/net/ipv6/sysctl_net_ipv6.c
index e15cd37..5b60a4b 100644
--- a/kernel/net/ipv6/sysctl_net_ipv6.c
+++ b/kernel/net/ipv6/sysctl_net_ipv6.c
@@ -21,14 +21,13 @@
#include <net/calipso.h>
#endif
-static int zero;
-static int one = 1;
+static int two = 2;
+static int flowlabel_reflect_max = 0x7;
static int auto_flowlabels_min;
static int auto_flowlabels_max = IP6_AUTO_FLOW_LABEL_MAX;
static int proc_rt6_multipath_hash_policy(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp,
- loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
struct net *net;
int ret;
@@ -113,7 +112,9 @@
.data = &init_net.ipv6.sysctl.flowlabel_reflect,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = &flowlabel_reflect_max,
},
{
.procname = "max_dst_opts_number",
@@ -149,8 +150,8 @@
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_rt6_multipath_hash_policy,
- .extra1 = &zero,
- .extra2 = &one,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = &two,
},
{
.procname = "seg6_flowlabel",
@@ -176,7 +177,7 @@
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = &one
+ .extra1 = SYSCTL_ONE
},
#ifdef CONFIG_NETLABEL
{
@@ -202,29 +203,16 @@
struct ctl_table *ipv6_table;
struct ctl_table *ipv6_route_table;
struct ctl_table *ipv6_icmp_table;
- int err;
+ int err, i;
err = -ENOMEM;
ipv6_table = kmemdup(ipv6_table_template, sizeof(ipv6_table_template),
GFP_KERNEL);
if (!ipv6_table)
goto out;
- ipv6_table[0].data = &net->ipv6.sysctl.bindv6only;
- ipv6_table[1].data = &net->ipv6.sysctl.anycast_src_echo_reply;
- ipv6_table[2].data = &net->ipv6.sysctl.flowlabel_consistency;
- ipv6_table[3].data = &net->ipv6.sysctl.auto_flowlabels;
- ipv6_table[4].data = &net->ipv6.sysctl.fwmark_reflect;
- ipv6_table[5].data = &net->ipv6.sysctl.idgen_retries;
- ipv6_table[6].data = &net->ipv6.sysctl.idgen_delay;
- ipv6_table[7].data = &net->ipv6.sysctl.flowlabel_state_ranges;
- ipv6_table[8].data = &net->ipv6.sysctl.ip_nonlocal_bind;
- ipv6_table[9].data = &net->ipv6.sysctl.flowlabel_reflect;
- ipv6_table[10].data = &net->ipv6.sysctl.max_dst_opts_cnt;
- ipv6_table[11].data = &net->ipv6.sysctl.max_hbh_opts_cnt;
- ipv6_table[12].data = &net->ipv6.sysctl.max_dst_opts_len;
- ipv6_table[13].data = &net->ipv6.sysctl.max_hbh_opts_len;
- ipv6_table[14].data = &net->ipv6.sysctl.multipath_hash_policy,
- ipv6_table[15].data = &net->ipv6.sysctl.seg6_flowlabel;
+ /* Update the variables to point into the current struct net */
+ for (i = 0; i < ARRAY_SIZE(ipv6_table_template) - 1; i++)
+ ipv6_table[i].data += (void *)net - (void *)&init_net;
ipv6_route_table = ipv6_route_sysctl_init(net);
if (!ipv6_route_table)
--
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