diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sctp/sysctl.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'net/sctp/sysctl.c')
-rw-r--r-- | net/sctp/sysctl.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c new file mode 100644 index 000000000000..89fa20c73a5c --- /dev/null +++ b/net/sctp/sysctl.c | |||
@@ -0,0 +1,251 @@ | |||
1 | /* SCTP kernel reference Implementation | ||
2 | * (C) Copyright IBM Corp. 2002, 2004 | ||
3 | * Copyright (c) 2002 Intel Corp. | ||
4 | * | ||
5 | * This file is part of the SCTP kernel reference Implementation | ||
6 | * | ||
7 | * Sysctl related interfaces for SCTP. | ||
8 | * | ||
9 | * The SCTP reference implementation is free software; | ||
10 | * you can redistribute it and/or modify it under the terms of | ||
11 | * the GNU General Public License as published by | ||
12 | * the Free Software Foundation; either version 2, or (at your option) | ||
13 | * any later version. | ||
14 | * | ||
15 | * The SCTP reference implementation is distributed in the hope that it | ||
16 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied | ||
17 | * ************************ | ||
18 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
19 | * See the GNU General Public License for more details. | ||
20 | * | ||
21 | * You should have received a copy of the GNU General Public License | ||
22 | * along with GNU CC; see the file COPYING. If not, write to | ||
23 | * the Free Software Foundation, 59 Temple Place - Suite 330, | ||
24 | * Boston, MA 02111-1307, USA. | ||
25 | * | ||
26 | * Please send any bug reports or fixes you make to the | ||
27 | * email address(es): | ||
28 | * lksctp developers <lksctp-developers@lists.sourceforge.net> | ||
29 | * | ||
30 | * Or submit a bug report through the following website: | ||
31 | * http://www.sf.net/projects/lksctp | ||
32 | * | ||
33 | * Written or modified by: | ||
34 | * Mingqin Liu <liuming@us.ibm.com> | ||
35 | * Jon Grimm <jgrimm@us.ibm.com> | ||
36 | * Ardelle Fan <ardelle.fan@intel.com> | ||
37 | * Ryan Layer <rmlayer@us.ibm.com> | ||
38 | * Sridhar Samudrala <sri@us.ibm.com> | ||
39 | * | ||
40 | * Any bugs reported given to us we will try to fix... any fixes shared will | ||
41 | * be incorporated into the next SCTP release. | ||
42 | */ | ||
43 | |||
44 | #include <net/sctp/structs.h> | ||
45 | #include <linux/sysctl.h> | ||
46 | |||
47 | static ctl_handler sctp_sysctl_jiffies_ms; | ||
48 | static long rto_timer_min = 1; | ||
49 | static long rto_timer_max = 86400000; /* One day */ | ||
50 | |||
51 | static ctl_table sctp_table[] = { | ||
52 | { | ||
53 | .ctl_name = NET_SCTP_RTO_INITIAL, | ||
54 | .procname = "rto_initial", | ||
55 | .data = &sctp_rto_initial, | ||
56 | .maxlen = sizeof(long), | ||
57 | .mode = 0644, | ||
58 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
59 | .strategy = &sctp_sysctl_jiffies_ms, | ||
60 | .extra1 = &rto_timer_min, | ||
61 | .extra2 = &rto_timer_max | ||
62 | }, | ||
63 | { | ||
64 | .ctl_name = NET_SCTP_RTO_MIN, | ||
65 | .procname = "rto_min", | ||
66 | .data = &sctp_rto_min, | ||
67 | .maxlen = sizeof(long), | ||
68 | .mode = 0644, | ||
69 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
70 | .strategy = &sctp_sysctl_jiffies_ms, | ||
71 | .extra1 = &rto_timer_min, | ||
72 | .extra2 = &rto_timer_max | ||
73 | }, | ||
74 | { | ||
75 | .ctl_name = NET_SCTP_RTO_MAX, | ||
76 | .procname = "rto_max", | ||
77 | .data = &sctp_rto_max, | ||
78 | .maxlen = sizeof(long), | ||
79 | .mode = 0644, | ||
80 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
81 | .strategy = &sctp_sysctl_jiffies_ms, | ||
82 | .extra1 = &rto_timer_min, | ||
83 | .extra2 = &rto_timer_max | ||
84 | }, | ||
85 | { | ||
86 | .ctl_name = NET_SCTP_VALID_COOKIE_LIFE, | ||
87 | .procname = "valid_cookie_life", | ||
88 | .data = &sctp_valid_cookie_life, | ||
89 | .maxlen = sizeof(long), | ||
90 | .mode = 0644, | ||
91 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
92 | .strategy = &sctp_sysctl_jiffies_ms, | ||
93 | .extra1 = &rto_timer_min, | ||
94 | .extra2 = &rto_timer_max | ||
95 | }, | ||
96 | { | ||
97 | .ctl_name = NET_SCTP_MAX_BURST, | ||
98 | .procname = "max_burst", | ||
99 | .data = &sctp_max_burst, | ||
100 | .maxlen = sizeof(int), | ||
101 | .mode = 0644, | ||
102 | .proc_handler = &proc_dointvec | ||
103 | }, | ||
104 | { | ||
105 | .ctl_name = NET_SCTP_ASSOCIATION_MAX_RETRANS, | ||
106 | .procname = "association_max_retrans", | ||
107 | .data = &sctp_max_retrans_association, | ||
108 | .maxlen = sizeof(int), | ||
109 | .mode = 0644, | ||
110 | .proc_handler = &proc_dointvec | ||
111 | }, | ||
112 | { | ||
113 | .ctl_name = NET_SCTP_PATH_MAX_RETRANS, | ||
114 | .procname = "path_max_retrans", | ||
115 | .data = &sctp_max_retrans_path, | ||
116 | .maxlen = sizeof(int), | ||
117 | .mode = 0644, | ||
118 | .proc_handler = &proc_dointvec | ||
119 | }, | ||
120 | { | ||
121 | .ctl_name = NET_SCTP_MAX_INIT_RETRANSMITS, | ||
122 | .procname = "max_init_retransmits", | ||
123 | .data = &sctp_max_retrans_init, | ||
124 | .maxlen = sizeof(int), | ||
125 | .mode = 0644, | ||
126 | .proc_handler = &proc_dointvec | ||
127 | }, | ||
128 | { | ||
129 | .ctl_name = NET_SCTP_HB_INTERVAL, | ||
130 | .procname = "hb_interval", | ||
131 | .data = &sctp_hb_interval, | ||
132 | .maxlen = sizeof(long), | ||
133 | .mode = 0644, | ||
134 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
135 | .strategy = &sctp_sysctl_jiffies_ms, | ||
136 | .extra1 = &rto_timer_min, | ||
137 | .extra2 = &rto_timer_max | ||
138 | }, | ||
139 | { | ||
140 | .ctl_name = NET_SCTP_PRESERVE_ENABLE, | ||
141 | .procname = "cookie_preserve_enable", | ||
142 | .data = &sctp_cookie_preserve_enable, | ||
143 | .maxlen = sizeof(long), | ||
144 | .mode = 0644, | ||
145 | .proc_handler = &proc_doulongvec_ms_jiffies_minmax, | ||
146 | .strategy = &sctp_sysctl_jiffies_ms, | ||
147 | .extra1 = &rto_timer_min, | ||
148 | .extra2 = &rto_timer_max | ||
149 | }, | ||
150 | { | ||
151 | .ctl_name = NET_SCTP_RTO_ALPHA, | ||
152 | .procname = "rto_alpha_exp_divisor", | ||
153 | .data = &sctp_rto_alpha, | ||
154 | .maxlen = sizeof(int), | ||
155 | .mode = 0644, | ||
156 | .proc_handler = &proc_dointvec | ||
157 | }, | ||
158 | { | ||
159 | .ctl_name = NET_SCTP_RTO_BETA, | ||
160 | .procname = "rto_beta_exp_divisor", | ||
161 | .data = &sctp_rto_beta, | ||
162 | .maxlen = sizeof(int), | ||
163 | .mode = 0644, | ||
164 | .proc_handler = &proc_dointvec | ||
165 | }, | ||
166 | { | ||
167 | .ctl_name = NET_SCTP_ADDIP_ENABLE, | ||
168 | .procname = "addip_enable", | ||
169 | .data = &sctp_addip_enable, | ||
170 | .maxlen = sizeof(int), | ||
171 | .mode = 0644, | ||
172 | .proc_handler = &proc_dointvec | ||
173 | }, | ||
174 | { | ||
175 | .ctl_name = NET_SCTP_PRSCTP_ENABLE, | ||
176 | .procname = "prsctp_enable", | ||
177 | .data = &sctp_prsctp_enable, | ||
178 | .maxlen = sizeof(int), | ||
179 | .mode = 0644, | ||
180 | .proc_handler = &proc_dointvec | ||
181 | }, | ||
182 | { .ctl_name = 0 } | ||
183 | }; | ||
184 | |||
185 | static ctl_table sctp_net_table[] = { | ||
186 | { | ||
187 | .ctl_name = NET_SCTP, | ||
188 | .procname = "sctp", | ||
189 | .mode = 0555, | ||
190 | .child = sctp_table | ||
191 | }, | ||
192 | { .ctl_name = 0 } | ||
193 | }; | ||
194 | |||
195 | static ctl_table sctp_root_table[] = { | ||
196 | { | ||
197 | .ctl_name = CTL_NET, | ||
198 | .procname = "net", | ||
199 | .mode = 0555, | ||
200 | .child = sctp_net_table | ||
201 | }, | ||
202 | { .ctl_name = 0 } | ||
203 | }; | ||
204 | |||
205 | static struct ctl_table_header * sctp_sysctl_header; | ||
206 | |||
207 | /* Sysctl registration. */ | ||
208 | void sctp_sysctl_register(void) | ||
209 | { | ||
210 | sctp_sysctl_header = register_sysctl_table(sctp_root_table, 0); | ||
211 | } | ||
212 | |||
213 | /* Sysctl deregistration. */ | ||
214 | void sctp_sysctl_unregister(void) | ||
215 | { | ||
216 | unregister_sysctl_table(sctp_sysctl_header); | ||
217 | } | ||
218 | |||
219 | /* Strategy function to convert jiffies to milliseconds. */ | ||
220 | static int sctp_sysctl_jiffies_ms(ctl_table *table, int __user *name, int nlen, | ||
221 | void __user *oldval, size_t __user *oldlenp, | ||
222 | void __user *newval, size_t newlen, void **context) { | ||
223 | |||
224 | if (oldval) { | ||
225 | size_t olen; | ||
226 | |||
227 | if (oldlenp) { | ||
228 | if (get_user(olen, oldlenp)) | ||
229 | return -EFAULT; | ||
230 | |||
231 | if (olen != sizeof (int)) | ||
232 | return -EINVAL; | ||
233 | } | ||
234 | if (put_user((*(int *)(table->data) * 1000) / HZ, | ||
235 | (int __user *)oldval) || | ||
236 | (oldlenp && put_user(sizeof (int), oldlenp))) | ||
237 | return -EFAULT; | ||
238 | } | ||
239 | if (newval && newlen) { | ||
240 | int new; | ||
241 | |||
242 | if (newlen != sizeof (int)) | ||
243 | return -EINVAL; | ||
244 | |||
245 | if (get_user(new, (int __user *)newval)) | ||
246 | return -EFAULT; | ||
247 | |||
248 | *(int *)(table->data) = (new * HZ) / 1000; | ||
249 | } | ||
250 | return 1; | ||
251 | } | ||