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-rw-r--r--net/sctp/sysctl.c296
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diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
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+/* SCTP kernel implementation
+ * (C) Copyright IBM Corp. 2002, 2004
+ * Copyright (c) 2002 Intel Corp.
+ *
+ * This file is part of the SCTP kernel implementation
+ *
+ * Sysctl related interfaces for SCTP.
+ *
+ * This SCTP 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.
+ *
+ * This SCTP 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 <net/sctp/sctp.h>
+#include <linux/sysctl.h>
+
+static int zero = 0;
+static int one = 1;
+static int timer_max = 86400000; /* ms in one day */
+static int int_max = INT_MAX;
+static int sack_timer_min = 1;
+static int sack_timer_max = 500;
+static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */
+static int rwnd_scale_max = 16;
+static unsigned long max_autoclose_min = 0;
+static unsigned long max_autoclose_max =
+ (MAX_SCHEDULE_TIMEOUT / HZ > UINT_MAX)
+ ? UINT_MAX : MAX_SCHEDULE_TIMEOUT / HZ;
+
+extern long sysctl_sctp_mem[3];
+extern int sysctl_sctp_rmem[3];
+extern int sysctl_sctp_wmem[3];
+
+static ctl_table sctp_table[] = {
+ {
+ .procname = "rto_initial",
+ .data = &sctp_rto_initial,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &timer_max
+ },
+ {
+ .procname = "rto_min",
+ .data = &sctp_rto_min,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &timer_max
+ },
+ {
+ .procname = "rto_max",
+ .data = &sctp_rto_max,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &timer_max
+ },
+ {
+ .procname = "valid_cookie_life",
+ .data = &sctp_valid_cookie_life,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &timer_max
+ },
+ {
+ .procname = "max_burst",
+ .data = &sctp_max_burst,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &int_max
+ },
+ {
+ .procname = "association_max_retrans",
+ .data = &sctp_max_retrans_association,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &int_max
+ },
+ {
+ .procname = "sndbuf_policy",
+ .data = &sctp_sndbuf_policy,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "rcvbuf_policy",
+ .data = &sctp_rcvbuf_policy,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "path_max_retrans",
+ .data = &sctp_max_retrans_path,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &int_max
+ },
+ {
+ .procname = "max_init_retransmits",
+ .data = &sctp_max_retrans_init,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &int_max
+ },
+ {
+ .procname = "hb_interval",
+ .data = &sctp_hb_interval,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &timer_max
+ },
+ {
+ .procname = "cookie_preserve_enable",
+ .data = &sctp_cookie_preserve_enable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "rto_alpha_exp_divisor",
+ .data = &sctp_rto_alpha,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "rto_beta_exp_divisor",
+ .data = &sctp_rto_beta,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "addip_enable",
+ .data = &sctp_addip_enable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "default_auto_asconf",
+ .data = &sctp_default_auto_asconf,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "prsctp_enable",
+ .data = &sctp_prsctp_enable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sack_timeout",
+ .data = &sctp_sack_timeout,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &sack_timer_min,
+ .extra2 = &sack_timer_max,
+ },
+ {
+ .procname = "sctp_mem",
+ .data = &sysctl_sctp_mem,
+ .maxlen = sizeof(sysctl_sctp_mem),
+ .mode = 0644,
+ .proc_handler = proc_doulongvec_minmax
+ },
+ {
+ .procname = "sctp_rmem",
+ .data = &sysctl_sctp_rmem,
+ .maxlen = sizeof(sysctl_sctp_rmem),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sctp_wmem",
+ .data = &sysctl_sctp_wmem,
+ .maxlen = sizeof(sysctl_sctp_wmem),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "auth_enable",
+ .data = &sctp_auth_enable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "addip_noauth_enable",
+ .data = &sctp_addip_noauth,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "addr_scope_policy",
+ .data = &sctp_scope_policy,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &addr_scope_max,
+ },
+ {
+ .procname = "rwnd_update_shift",
+ .data = &sctp_rwnd_upd_shift,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_minmax,
+ .extra1 = &one,
+ .extra2 = &rwnd_scale_max,
+ },
+ {
+ .procname = "max_autoclose",
+ .data = &sctp_max_autoclose,
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = &proc_doulongvec_minmax,
+ .extra1 = &max_autoclose_min,
+ .extra2 = &max_autoclose_max,
+ },
+
+ { /* sentinel */ }
+};
+
+static struct ctl_path sctp_path[] = {
+ { .procname = "net", },
+ { .procname = "sctp", },
+ { }
+};
+
+static struct ctl_table_header * sctp_sysctl_header;
+
+/* Sysctl registration. */
+void sctp_sysctl_register(void)
+{
+ sctp_sysctl_header = register_sysctl_paths(sctp_path, sctp_table);
+}
+
+/* Sysctl deregistration. */
+void sctp_sysctl_unregister(void)
+{
+ unregister_sysctl_table(sctp_sysctl_header);
+}
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