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netfilter: conntrack: use shared sysctl constants

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Use shared sysctl variables for zero and one constants, as in commit
eec4844fae ("proc/sysctl: add shared variables for range check")

Fixes: 8f14c99c7e ("netfilter: conntrack: limit sysctl setting for boolean options")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Matteo Croce 2019-07-23 03:23:03 +02:00 committed by Pablo Neira Ayuso
parent 8c0bb78738
commit e84fb4b366
1 changed files with 16 additions and 18 deletions
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34
net/netfilter/nf_conntrack_standalone.c
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@ -511,8 +511,6 @@ static void nf_conntrack_standalone_fini_proc(struct net *net)
/* Log invalid packets of a given protocol */
static int log_invalid_proto_min __read_mostly;
static int log_invalid_proto_max __read_mostly = 255;
static int zero;
static int one = 1;
/* size the user *wants to set */
static unsigned int nf_conntrack_htable_size_user __read_mostly;
@ -629,8 +627,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
[NF_SYSCTL_CT_LOG_INVALID] = {
.procname = "nf_conntrack_log_invalid",
@ -654,8 +652,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
[NF_SYSCTL_CT_HELPER] = {
.procname = "nf_conntrack_helper",
@ -663,8 +661,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
#ifdef CONFIG_NF_CONNTRACK_EVENTS
[NF_SYSCTL_CT_EVENTS] = {
@ -673,8 +671,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
#endif
#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
@ -684,8 +682,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
#endif
[NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC] = {
@ -759,16 +757,16 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
[NF_SYSCTL_CT_PROTO_TCP_LIBERAL] = {
.procname = "nf_conntrack_tcp_be_liberal",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
[NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS] = {
.procname = "nf_conntrack_tcp_max_retrans",
@ -904,8 +902,8 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
#endif
#ifdef CONFIG_NF_CT_PROTO_GRE