xref: /linux/net/dccp/sysctl.c (revision 410e27a49bb98bc7fa3ff5fc05cc313817b9f253)
1 /*
2  *  net/dccp/sysctl.c
3  *
4  *  An implementation of the DCCP protocol
5  *  Arnaldo Carvalho de Melo <acme@mandriva.com>
6  *
7  *	This program is free software; you can redistribute it and/or
8  *	modify it under the terms of the GNU General Public License v2
9  *	as published by the Free Software Foundation.
10  */
11 
12 #include <linux/mm.h>
13 #include <linux/sysctl.h>
14 #include "dccp.h"
15 #include "feat.h"
16 
17 #ifndef CONFIG_SYSCTL
18 #error This file should not be compiled without CONFIG_SYSCTL defined
19 #endif
20 
21 static struct ctl_table dccp_default_table[] = {
22 	{
23 		.procname	= "seq_window",
24 		.data		= &sysctl_dccp_feat_sequence_window,
25 		.maxlen		= sizeof(sysctl_dccp_feat_sequence_window),
26 		.mode		= 0644,
27 		.proc_handler	= proc_dointvec,
28 	},
29 	{
30 		.procname	= "rx_ccid",
31 		.data		= &sysctl_dccp_feat_rx_ccid,
32 		.maxlen		= sizeof(sysctl_dccp_feat_rx_ccid),
33 		.mode		= 0644,
34 		.proc_handler	= proc_dointvec,
35 	},
36 	{
37 		.procname	= "tx_ccid",
38 		.data		= &sysctl_dccp_feat_tx_ccid,
39 		.maxlen		= sizeof(sysctl_dccp_feat_tx_ccid),
40 		.mode		= 0644,
41 		.proc_handler	= proc_dointvec,
42 	},
43 	{
44 		.procname	= "ack_ratio",
45 		.data		= &sysctl_dccp_feat_ack_ratio,
46 		.maxlen		= sizeof(sysctl_dccp_feat_ack_ratio),
47 		.mode		= 0644,
48 		.proc_handler	= proc_dointvec,
49 	},
50 	{
51 		.procname	= "send_ackvec",
52 		.data		= &sysctl_dccp_feat_send_ack_vector,
53 		.maxlen		= sizeof(sysctl_dccp_feat_send_ack_vector),
54 		.mode		= 0644,
55 		.proc_handler	= proc_dointvec,
56 	},
57 	{
58 		.procname	= "send_ndp",
59 		.data		= &sysctl_dccp_feat_send_ndp_count,
60 		.maxlen		= sizeof(sysctl_dccp_feat_send_ndp_count),
61 		.mode		= 0644,
62 		.proc_handler	= proc_dointvec,
63 	},
64 	{
65 		.procname	= "request_retries",
66 		.data		= &sysctl_dccp_request_retries,
67 		.maxlen		= sizeof(sysctl_dccp_request_retries),
68 		.mode		= 0644,
69 		.proc_handler	= proc_dointvec,
70 	},
71 	{
72 		.procname	= "retries1",
73 		.data		= &sysctl_dccp_retries1,
74 		.maxlen		= sizeof(sysctl_dccp_retries1),
75 		.mode		= 0644,
76 		.proc_handler	= proc_dointvec,
77 	},
78 	{
79 		.procname	= "retries2",
80 		.data		= &sysctl_dccp_retries2,
81 		.maxlen		= sizeof(sysctl_dccp_retries2),
82 		.mode		= 0644,
83 		.proc_handler	= proc_dointvec,
84 	},
85 	{
86 		.procname	= "tx_qlen",
87 		.data		= &sysctl_dccp_tx_qlen,
88 		.maxlen		= sizeof(sysctl_dccp_tx_qlen),
89 		.mode		= 0644,
90 		.proc_handler	= proc_dointvec,
91 	},
92 	{
93 		.procname	= "sync_ratelimit",
94 		.data		= &sysctl_dccp_sync_ratelimit,
95 		.maxlen		= sizeof(sysctl_dccp_sync_ratelimit),
96 		.mode		= 0644,
97 		.proc_handler	= proc_dointvec_ms_jiffies,
98 	},
99 
100 	{ .ctl_name = 0, }
101 };
102 
103 static struct ctl_path dccp_path[] = {
104 	{ .procname = "net", .ctl_name = CTL_NET, },
105 	{ .procname = "dccp", .ctl_name = NET_DCCP, },
106 	{ .procname = "default", .ctl_name = NET_DCCP_DEFAULT, },
107 	{ }
108 };
109 
110 static struct ctl_table_header *dccp_table_header;
111 
112 int __init dccp_sysctl_init(void)
113 {
114 	dccp_table_header = register_sysctl_paths(dccp_path,
115 			dccp_default_table);
116 
117 	return dccp_table_header != NULL ? 0 : -ENOMEM;
118 }
119 
120 void dccp_sysctl_exit(void)
121 {
122 	if (dccp_table_header != NULL) {
123 		unregister_sysctl_table(dccp_table_header);
124 		dccp_table_header = NULL;
125 	}
126 }
127