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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* -*- linux-c -*-
* sysctl_net_core.c: sysctl interface to net core subsystem.
*
* Begun April 1, 1996, Mike Shaver.
* Added /proc/sys/net/core directory entry (empty =) ). [MS]
*/
#include <linux/mm.h>
#include <linux/sysctl.h>
#include <linux/config.h>
#include <linux/module.h>
#ifdef CONFIG_SYSCTL
extern int netdev_max_backlog;
extern int weight_p;
extern int no_cong_thresh;
extern int no_cong;
extern int lo_cong;
extern int mod_cong;
extern int netdev_fastroute;
extern int net_msg_cost;
extern int net_msg_burst;
extern __u32 sysctl_wmem_max;
extern __u32 sysctl_rmem_max;
extern __u32 sysctl_wmem_default;
extern __u32 sysctl_rmem_default;
extern int sysctl_core_destroy_delay;
extern int sysctl_optmem_max;
extern int sysctl_somaxconn;
#ifdef CONFIG_NET_DIVERT
extern char sysctl_divert_version[];
#endif /* CONFIG_NET_DIVERT */
/*
* This strdup() is used for creating copies of network
* device names to be handed over to sysctl.
*/
char *net_sysctl_strdup(const char *s)
{
char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
if (rv)
strcpy(rv, s);
return rv;
}
ctl_table core_table[] = {
#ifdef CONFIG_NET
{
.ctl_name = NET_CORE_WMEM_MAX,
.procname = "wmem_max",
.data = &sysctl_wmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_MAX,
.procname = "rmem_max",
.data = &sysctl_rmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_WMEM_DEFAULT,
.procname = "wmem_default",
.data = &sysctl_wmem_default,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_RMEM_DEFAULT,
.procname = "rmem_default",
.data = &sysctl_rmem_default,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_DEV_WEIGHT,
.procname = "dev_weight",
.data = &weight_p,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MAX_BACKLOG,
.procname = "netdev_max_backlog",
.data = &netdev_max_backlog,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_NO_CONG_THRESH,
.procname = "no_cong_thresh",
.data = &no_cong_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_NO_CONG,
.procname = "no_cong",
.data = &no_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_LO_CONG,
.procname = "lo_cong",
.data = &lo_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MOD_CONG,
.procname = "mod_cong",
.data = &mod_cong,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{
.ctl_name = NET_CORE_MSG_COST,
.procname = "message_cost",
.data = &net_msg_cost,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
.strategy = &sysctl_jiffies,
},
{
.ctl_name = NET_CORE_MSG_BURST,
.procname = "message_burst",
.data = &net_msg_burst,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_CORE_OPTMEM_MAX,
.procname = "optmem_max",
.data = &sysctl_optmem_max,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
#ifdef CONFIG_NET_DIVERT
{
.ctl_name = NET_CORE_DIVERT_VERSION,
.procname = "divert_version",
.data = (void *)sysctl_divert_version,
.maxlen = 32,
.mode = 0444,
.proc_handler = &proc_dostring
},
#endif /* CONFIG_NET_DIVERT */
#endif /* CONFIG_NET */
{
.ctl_name = NET_CORE_SOMAXCONN,
.procname = "somaxconn",
.data = &sysctl_somaxconn,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
},
{ .ctl_name = 0 }
};
EXPORT_SYMBOL(net_sysctl_strdup);
#endif
|