1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* net/dccp/sysctl.c
*
* An implementation of the DCCP protocol
* Arnaldo Carvalho de Melo <acme@mandriva.com>
*/
#include <linux/mm.h>
#include <linux/sysctl.h>
#include "dccp.h"
#include "feat.h"
#ifndef CONFIG_SYSCTL
#error This file should not be compiled without CONFIG_SYSCTL defined
#endif
/* Boundary values */
static int zero = 0,
one = 1,
u8_max = 0xFF;
static unsigned long seqw_min = DCCPF_SEQ_WMIN,
seqw_max = 0xFFFFFFFF; /* maximum on 32 bit */
static struct ctl_table dccp_default_table[] = {
{
.procname = "seq_window",
.data = &sysctl_dccp_sequence_window,
.maxlen = sizeof(sysctl_dccp_sequence_window),
.mode = 0644,
.proc_handler = proc_doulongvec_minmax,
.extra1 = &seqw_min, /* RFC 4340, 7.5.2 */
.extra2 = &seqw_max,
},
{
.procname = "rx_ccid",
.data = &sysctl_dccp_rx_ccid,
.maxlen = sizeof(sysctl_dccp_rx_ccid),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &u8_max, /* RFC 4340, 10. */
},
{
.procname = "tx_ccid",
.data = &sysctl_dccp_tx_ccid,
.maxlen = sizeof(sysctl_dccp_tx_ccid),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &u8_max, /* RFC 4340, 10. */
},
{
.procname = "request_retries",
.data = &sysctl_dccp_request_retries,
.maxlen = sizeof(sysctl_dccp_request_retries),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &one,
.extra2 = &u8_max,
},
{
.procname = "retries1",
.data = &sysctl_dccp_retries1,
.maxlen = sizeof(sysctl_dccp_retries1),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &u8_max,
},
{
.procname = "retries2",
.data = &sysctl_dccp_retries2,
.maxlen = sizeof(sysctl_dccp_retries2),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &u8_max,
},
{
.procname = "tx_qlen",
.data = &sysctl_dccp_tx_qlen,
.maxlen = sizeof(sysctl_dccp_tx_qlen),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
},
{
.procname = "sync_ratelimit",
.data = &sysctl_dccp_sync_ratelimit,
.maxlen = sizeof(sysctl_dccp_sync_ratelimit),
.mode = 0644,
.proc_handler = proc_dointvec_ms_jiffies,
},
{ }
};
static struct ctl_table_header *dccp_table_header;
int __init dccp_sysctl_init(void)
{
dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default",
dccp_default_table);
return dccp_table_header != NULL ? 0 : -ENOMEM;
}
void dccp_sysctl_exit(void)
{
if (dccp_table_header != NULL) {
unregister_net_sysctl_table(dccp_table_header);
dccp_table_header = NULL;
}
}
|
