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Diffstat (limited to 'net/sctp/sysctl.c')
-rw-r--r--net/sctp/sysctl.c140
1 files changed, 63 insertions, 77 deletions
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index dc6f3ff32358..633cd178654b 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -45,9 +45,10 @@
#include <net/sctp/sctp.h>
#include <linux/sysctl.h>
-static ctl_handler sctp_sysctl_jiffies_ms;
-static long rto_timer_min = 1;
-static long rto_timer_max = 86400000; /* One day */
+static int zero = 0;
+static int one = 1;
+static int timer_max = 86400000; /* ms in one day */
+static int int_max = INT_MAX;
static long sack_timer_min = 1;
static long sack_timer_max = 500;
@@ -56,45 +57,45 @@ static ctl_table sctp_table[] = {
.ctl_name = NET_SCTP_RTO_INITIAL,
.procname = "rto_initial",
.data = &sctp_rto_initial,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
- .extra1 = &rto_timer_min,
- .extra2 = &rto_timer_max
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &timer_max
},
{
.ctl_name = NET_SCTP_RTO_MIN,
.procname = "rto_min",
.data = &sctp_rto_min,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
- .extra1 = &rto_timer_min,
- .extra2 = &rto_timer_max
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &timer_max
},
{
.ctl_name = NET_SCTP_RTO_MAX,
.procname = "rto_max",
.data = &sctp_rto_max,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
- .extra1 = &rto_timer_min,
- .extra2 = &rto_timer_max
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &timer_max
},
{
.ctl_name = NET_SCTP_VALID_COOKIE_LIFE,
.procname = "valid_cookie_life",
.data = &sctp_valid_cookie_life,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
- .extra1 = &rto_timer_min,
- .extra2 = &rto_timer_max
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &timer_max
},
{
.ctl_name = NET_SCTP_MAX_BURST,
@@ -102,7 +103,10 @@ static ctl_table sctp_table[] = {
.data = &sctp_max_burst,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &zero,
+ .extra2 = &int_max
},
{
.ctl_name = NET_SCTP_ASSOCIATION_MAX_RETRANS,
@@ -110,7 +114,10 @@ static ctl_table sctp_table[] = {
.data = &sctp_max_retrans_association,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &int_max
},
{
.ctl_name = NET_SCTP_SNDBUF_POLICY,
@@ -118,7 +125,8 @@ static ctl_table sctp_table[] = {
.data = &sctp_sndbuf_policy,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_RCVBUF_POLICY,
@@ -126,7 +134,8 @@ static ctl_table sctp_table[] = {
.data = &sctp_rcvbuf_policy,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_PATH_MAX_RETRANS,
@@ -134,7 +143,10 @@ static ctl_table sctp_table[] = {
.data = &sctp_max_retrans_path,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &int_max
},
{
.ctl_name = NET_SCTP_MAX_INIT_RETRANSMITS,
@@ -142,18 +154,21 @@ static ctl_table sctp_table[] = {
.data = &sctp_max_retrans_init,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &int_max
},
{
.ctl_name = NET_SCTP_HB_INTERVAL,
.procname = "hb_interval",
.data = &sctp_hb_interval,
- .maxlen = sizeof(long),
+ .maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
- .extra1 = &rto_timer_min,
- .extra2 = &rto_timer_max
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
+ .extra1 = &one,
+ .extra2 = &timer_max
},
{
.ctl_name = NET_SCTP_PRESERVE_ENABLE,
@@ -161,23 +176,26 @@ static ctl_table sctp_table[] = {
.data = &sctp_cookie_preserve_enable,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_RTO_ALPHA,
.procname = "rto_alpha_exp_divisor",
.data = &sctp_rto_alpha,
.maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
+ .mode = 0444,
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_RTO_BETA,
.procname = "rto_beta_exp_divisor",
.data = &sctp_rto_beta,
.maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
+ .mode = 0444,
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_ADDIP_ENABLE,
@@ -185,7 +203,8 @@ static ctl_table sctp_table[] = {
.data = &sctp_addip_enable,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_PRSCTP_ENABLE,
@@ -193,7 +212,8 @@ static ctl_table sctp_table[] = {
.data = &sctp_prsctp_enable,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec
+ .proc_handler = &proc_dointvec,
+ .strategy = &sysctl_intvec
},
{
.ctl_name = NET_SCTP_SACK_TIMEOUT,
@@ -201,8 +221,8 @@ static ctl_table sctp_table[] = {
.data = &sctp_sack_timeout,
.maxlen = sizeof(long),
.mode = 0644,
- .proc_handler = &proc_doulongvec_ms_jiffies_minmax,
- .strategy = &sctp_sysctl_jiffies_ms,
+ .proc_handler = &proc_dointvec_minmax,
+ .strategy = &sysctl_intvec,
.extra1 = &sack_timer_min,
.extra2 = &sack_timer_max,
},
@@ -242,37 +262,3 @@ void sctp_sysctl_unregister(void)
{
unregister_sysctl_table(sctp_sysctl_header);
}
-
-/* Strategy function to convert jiffies to milliseconds. */
-static int sctp_sysctl_jiffies_ms(ctl_table *table, int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen, void **context) {
-
- if (oldval) {
- size_t olen;
-
- if (oldlenp) {
- if (get_user(olen, oldlenp))
- return -EFAULT;
-
- if (olen != sizeof (int))
- return -EINVAL;
- }
- if (put_user((*(int *)(table->data) * 1000) / HZ,
- (int __user *)oldval) ||
- (oldlenp && put_user(sizeof (int), oldlenp)))
- return -EFAULT;
- }
- if (newval && newlen) {
- int new;
-
- if (newlen != sizeof (int))
- return -EINVAL;
-
- if (get_user(new, (int __user *)newval))
- return -EFAULT;
-
- *(int *)(table->data) = (new * HZ) / 1000;
- }
- return 1;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 04:04:45 +0000