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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sctp/sysctl.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
Diffstat (limited to 'net/sctp/sysctl.c')
-rw-r--r--net/sctp/sysctl.c251
1 files changed, 251 insertions, 0 deletions
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
new file mode 100644
index 000000000000..89fa20c73a5c
--- /dev/null
+++ b/net/sctp/sysctl.c
@@ -0,0 +1,251 @@
+/* SCTP kernel reference Implementation
+ * (C) Copyright IBM Corp. 2002, 2004
+ * Copyright (c) 2002 Intel Corp.
+ *
+ * This file is part of the SCTP kernel reference Implementation
+ *
+ * Sysctl related interfaces for SCTP.
+ *
+ * The SCTP reference implementation is free software;
+ * you can redistribute it and/or modify it under the terms of
+ * the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * The SCTP reference implementation is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ *                 ************************
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU CC; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Please send any bug reports or fixes you make to the
+ * email address(es):
+ *    lksctp developers <lksctp-developers@lists.sourceforge.net>
+ *
+ * Or submit a bug report through the following website:
+ *    http://www.sf.net/projects/lksctp
+ *
+ * Written or modified by:
+ *    Mingqin Liu           <liuming@us.ibm.com>
+ *    Jon Grimm             <jgrimm@us.ibm.com>
+ *    Ardelle Fan           <ardelle.fan@intel.com>
+ *    Ryan Layer            <rmlayer@us.ibm.com>
+ *    Sridhar Samudrala     <sri@us.ibm.com>
+ *
+ * Any bugs reported given to us we will try to fix... any fixes shared will
+ * be incorporated into the next SCTP release.
+ */
+
+#include <net/sctp/structs.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 ctl_table sctp_table[] = {
+	{
+		.ctl_name	= NET_SCTP_RTO_INITIAL,
+		.procname	= "rto_initial",
+		.data		= &sctp_rto_initial,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_RTO_MIN,
+		.procname	= "rto_min",
+		.data		= &sctp_rto_min,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_RTO_MAX,
+		.procname	= "rto_max",
+		.data		= &sctp_rto_max,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_VALID_COOKIE_LIFE,
+		.procname	= "valid_cookie_life",
+		.data		= &sctp_valid_cookie_life,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_MAX_BURST,
+		.procname	= "max_burst",
+		.data		= &sctp_max_burst,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_ASSOCIATION_MAX_RETRANS,
+		.procname	= "association_max_retrans",
+		.data		= &sctp_max_retrans_association,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_PATH_MAX_RETRANS,
+		.procname	= "path_max_retrans",
+		.data		= &sctp_max_retrans_path,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_MAX_INIT_RETRANSMITS,
+		.procname	= "max_init_retransmits",
+		.data		= &sctp_max_retrans_init,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_HB_INTERVAL,
+		.procname	= "hb_interval",
+		.data		= &sctp_hb_interval,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_PRESERVE_ENABLE,
+		.procname	= "cookie_preserve_enable",
+		.data		= &sctp_cookie_preserve_enable,
+		.maxlen		= sizeof(long),
+		.mode		= 0644,
+		.proc_handler	= &proc_doulongvec_ms_jiffies_minmax,
+		.strategy	= &sctp_sysctl_jiffies_ms,
+		.extra1         = &rto_timer_min,
+		.extra2         = &rto_timer_max
+	},
+	{
+		.ctl_name	= NET_SCTP_RTO_ALPHA,
+		.procname	= "rto_alpha_exp_divisor",
+		.data		= &sctp_rto_alpha,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_RTO_BETA,
+		.procname	= "rto_beta_exp_divisor",
+		.data		= &sctp_rto_beta,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_ADDIP_ENABLE,
+		.procname	= "addip_enable",
+		.data		= &sctp_addip_enable,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{
+		.ctl_name	= NET_SCTP_PRSCTP_ENABLE,
+		.procname	= "prsctp_enable",
+		.data		= &sctp_prsctp_enable,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table sctp_net_table[] = {
+	{
+		.ctl_name	= NET_SCTP,
+		.procname	= "sctp",
+		.mode		= 0555,
+		.child		= sctp_table
+	},
+	{ .ctl_name = 0 }
+};
+
+static ctl_table sctp_root_table[] = {
+	{
+		.ctl_name	= CTL_NET,
+		.procname	= "net",
+		.mode		= 0555,
+		.child		= sctp_net_table
+	},
+	{ .ctl_name = 0 }
+};
+
+static struct ctl_table_header * sctp_sysctl_header;
+
+/* Sysctl registration.  */
+void sctp_sysctl_register(void)
+{
+	sctp_sysctl_header = register_sysctl_table(sctp_root_table, 0);
+}
+
+/* Sysctl deregistration.  */
+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;
+}