---

yaml
---
r: 22206
b: refs/heads/master
c: e55d912
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 04e2661e9c00386412b64612549cf24c8baef67c
+refs/heads/master: e55d912f5b75723159348a7fc7692f869a86636a

trunk/include/linux/sysctl.h

@@ -211,6 +211,7 @@ enum
 	NET_SCTP=17,
 	NET_LLC=18,
 	NET_NETFILTER=19,
+	NET_DCCP=20,
 };
 
 /* /proc/sys/kernel/random */
@@ -571,6 +572,21 @@ enum {
 	__NET_NEIGH_MAX
 };
 
+/* /proc/sys/net/dccp */
+enum {
+	NET_DCCP_DEFAULT=1,
+};
+
+/* /proc/sys/net/dccp/default */
+enum {
+	NET_DCCP_DEFAULT_SEQ_WINDOW  = 1,
+	NET_DCCP_DEFAULT_RX_CCID     = 2,
+	NET_DCCP_DEFAULT_TX_CCID     = 3,
+	NET_DCCP_DEFAULT_ACK_RATIO   = 4,
+	NET_DCCP_DEFAULT_SEND_ACKVEC = 5,
+	NET_DCCP_DEFAULT_SEND_NDP    = 6,
+};
+
 /* /proc/sys/net/ipx */
 enum {
 	NET_IPX_PPROP_BROADCASTING=1,

trunk/net/dccp/Makefile

@@ -11,6 +11,8 @@ dccp-$(CONFIG_IP_DCCP_ACKVEC) += ackvec.o
 
 obj-$(CONFIG_INET_DCCP_DIAG) += dccp_diag.o
 
+dccp-$(CONFIG_SYSCTL) += sysctl.o
+
 dccp_diag-y := diag.o
 
 obj-y += ccids/

trunk/net/dccp/dccp.h

@@ -433,4 +433,18 @@ static inline void timeval_sub_usecs(struct timeval *tv,
 	}
 }
 
+#ifdef CONFIG_SYSCTL
+extern int dccp_sysctl_init(void);
+extern void dccp_sysctl_exit(void);
+#else
+static inline int dccp_sysctl_init(void)
+{
+	return 0;
+}
+
+static inline void dccp_sysctl_exit(void)
+{
+}
+#endif
+
 #endif /* _DCCP_H */

trunk/net/dccp/options.c

@@ -23,19 +23,21 @@
 #include "dccp.h"
 #include "feat.h"
 
-/* stores the default values for new connection. may be changed with sysctl */
-static const struct dccp_options dccpo_default_values = {
-	.dccpo_sequence_window	  = DCCPF_INITIAL_SEQUENCE_WINDOW,
-	.dccpo_rx_ccid		  = DCCPF_INITIAL_CCID,
-	.dccpo_tx_ccid		  = DCCPF_INITIAL_CCID,
-	.dccpo_ack_ratio	  = DCCPF_INITIAL_ACK_RATIO,
-	.dccpo_send_ack_vector	  = DCCPF_INITIAL_SEND_ACK_VECTOR,
-	.dccpo_send_ndp_count	  = DCCPF_INITIAL_SEND_NDP_COUNT,
-};
+int dccp_feat_default_sequence_window = DCCPF_INITIAL_SEQUENCE_WINDOW;
+int dccp_feat_default_rx_ccid	      = DCCPF_INITIAL_CCID;
+int dccp_feat_default_tx_ccid	      = DCCPF_INITIAL_CCID;
+int dccp_feat_default_ack_ratio	      = DCCPF_INITIAL_ACK_RATIO;
+int dccp_feat_default_send_ack_vector = DCCPF_INITIAL_SEND_ACK_VECTOR;
+int dccp_feat_default_send_ndp_count  = DCCPF_INITIAL_SEND_NDP_COUNT;
 
 void dccp_options_init(struct dccp_options *dccpo)
 {
-	memcpy(dccpo, &dccpo_default_values, sizeof(*dccpo));
+	dccpo->dccpo_sequence_window = dccp_feat_default_sequence_window;
+	dccpo->dccpo_rx_ccid	     = dccp_feat_default_rx_ccid;
+	dccpo->dccpo_tx_ccid	     = dccp_feat_default_tx_ccid;
+	dccpo->dccpo_ack_ratio	     = dccp_feat_default_ack_ratio;
+	dccpo->dccpo_send_ack_vector = dccp_feat_default_send_ack_vector;
+	dccpo->dccpo_send_ndp_count  = dccp_feat_default_send_ndp_count;
 }
 
 static u32 dccp_decode_value_var(const unsigned char *bf, const u8 len)

trunk/net/dccp/proto.c

@@ -934,11 +934,17 @@ static int __init dccp_init(void)
 	if (rc)
 		goto out_unregister_protosw;
 
-	rc = dccp_ctl_sock_init();
+	rc = dccp_sysctl_init();
 	if (rc)
 		goto out_ackvec_exit;
+
+	rc = dccp_ctl_sock_init();
+	if (rc)
+		goto out_sysctl_exit;
 out:
 	return rc;
+out_sysctl_exit:
+	dccp_sysctl_exit();
 out_ackvec_exit:
 	dccp_ackvec_exit();
 out_unregister_protosw:
@@ -983,6 +989,7 @@ static void __exit dccp_fini(void)
 	kmem_cache_destroy(dccp_hashinfo.bind_bucket_cachep);
 	proto_unregister(&dccp_prot);
 	dccp_ackvec_exit();
+	dccp_sysctl_exit();
 }
 
 module_init(dccp_init);

trunk/net/dccp/sysctl.c

@@ -0,0 +1,124 @@
+/*
+ *  net/dccp/sysctl.c
+ *
+ *  An implementation of the DCCP protocol
+ *  Arnaldo Carvalho de Melo <acme@mandriva.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License v2
+ *	as published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+
+#ifndef CONFIG_SYSCTL
+#error This file should not be compiled without CONFIG_SYSCTL defined
+#endif
+
+extern int dccp_feat_default_sequence_window;
+extern int dccp_feat_default_rx_ccid;
+extern int dccp_feat_default_tx_ccid;
+extern int dccp_feat_default_ack_ratio;
+extern int dccp_feat_default_send_ack_vector;
+extern int dccp_feat_default_send_ndp_count;
+
+static struct ctl_table dccp_default_table[] = {
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_SEQ_WINDOW,
+		.procname	= "seq_window",
+		.data		= &dccp_feat_default_sequence_window,
+		.maxlen		= sizeof(dccp_feat_default_sequence_window),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_RX_CCID,
+		.procname	= "rx_ccid",
+		.data		= &dccp_feat_default_rx_ccid,
+		.maxlen		= sizeof(dccp_feat_default_rx_ccid),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_TX_CCID,
+		.procname	= "tx_ccid",
+		.data		= &dccp_feat_default_tx_ccid,
+		.maxlen		= sizeof(dccp_feat_default_tx_ccid),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_ACK_RATIO,
+		.procname	= "ack_ratio",
+		.data		= &dccp_feat_default_ack_ratio,
+		.maxlen		= sizeof(dccp_feat_default_ack_ratio),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_SEND_ACKVEC,
+		.procname	= "send_ackvec",
+		.data		= &dccp_feat_default_send_ack_vector,
+		.maxlen		= sizeof(dccp_feat_default_send_ack_vector),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.ctl_name	= NET_DCCP_DEFAULT_SEND_NDP,
+		.procname	= "send_ndp",
+		.data		= &dccp_feat_default_send_ndp_count,
+		.maxlen		= sizeof(dccp_feat_default_send_ndp_count),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{ .ctl_name = 0, }
+};
+
+static struct ctl_table dccp_table[] = {
+	{
+		.ctl_name	= NET_DCCP_DEFAULT,
+		.procname	= "default",
+		.mode		= 0555,
+		.child		= dccp_default_table,
+	},
+	{ .ctl_name = 0, },
+};
+
+static struct ctl_table dccp_dir_table[] = {
+	{
+		.ctl_name	= NET_DCCP,
+		.procname	= "dccp",
+		.mode		= 0555,
+		.child		= dccp_table,
+	},
+	{ .ctl_name = 0, },
+};
+
+static struct ctl_table dccp_root_table[] = {
+	{
+		.ctl_name	= CTL_NET,
+		.procname	= "net",
+		.mode		= 0555,
+		.child		= dccp_dir_table,
+	},
+	{ .ctl_name = 0, },
+};
+
+static struct ctl_table_header *dccp_table_header;
+
+int __init dccp_sysctl_init(void)
+{
+	dccp_table_header = register_sysctl_table(dccp_root_table, 1);
+
+	return dccp_table_header != NULL ? 0 : -ENOMEM;
+}
+
+void dccp_sysctl_exit(void)
+{
+	if (dccp_table_header != NULL) {
+		unregister_sysctl_table(dccp_table_header);
+		dccp_table_header = NULL;
+	}
+}