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1da177e4 LT |
1 | /* |
2 | * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem. | |
3 | * | |
4 | * $Id: sysctl_net_ipv4.c,v 1.50 2001/10/20 00:00:11 davem Exp $ | |
5 | * | |
6 | * Begun April 1, 1996, Mike Shaver. | |
7 | * Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS] | |
8 | */ | |
9 | ||
10 | #include <linux/mm.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/sysctl.h> | |
13 | #include <linux/config.h> | |
14 | #include <net/snmp.h> | |
15 | #include <net/ip.h> | |
16 | #include <net/route.h> | |
17 | #include <net/tcp.h> | |
18 | ||
19 | /* From af_inet.c */ | |
20 | extern int sysctl_ip_nonlocal_bind; | |
21 | ||
22 | /* From icmp.c */ | |
23 | extern int sysctl_icmp_echo_ignore_all; | |
24 | extern int sysctl_icmp_echo_ignore_broadcasts; | |
25 | extern int sysctl_icmp_ignore_bogus_error_responses; | |
26 | ||
27 | /* From ip_fragment.c */ | |
28 | extern int sysctl_ipfrag_low_thresh; | |
29 | extern int sysctl_ipfrag_high_thresh; | |
30 | extern int sysctl_ipfrag_time; | |
31 | extern int sysctl_ipfrag_secret_interval; | |
32 | ||
33 | /* From ip_output.c */ | |
34 | extern int sysctl_ip_dynaddr; | |
35 | ||
36 | /* From icmp.c */ | |
37 | extern int sysctl_icmp_ratelimit; | |
38 | extern int sysctl_icmp_ratemask; | |
39 | ||
40 | /* From igmp.c */ | |
41 | extern int sysctl_igmp_max_memberships; | |
42 | extern int sysctl_igmp_max_msf; | |
43 | ||
44 | /* From inetpeer.c */ | |
45 | extern int inet_peer_threshold; | |
46 | extern int inet_peer_minttl; | |
47 | extern int inet_peer_maxttl; | |
48 | extern int inet_peer_gc_mintime; | |
49 | extern int inet_peer_gc_maxtime; | |
50 | ||
51 | #ifdef CONFIG_SYSCTL | |
52 | static int tcp_retr1_max = 255; | |
53 | static int ip_local_port_range_min[] = { 1, 1 }; | |
54 | static int ip_local_port_range_max[] = { 65535, 65535 }; | |
55 | #endif | |
56 | ||
57 | struct ipv4_config ipv4_config; | |
58 | ||
59 | extern ctl_table ipv4_route_table[]; | |
60 | ||
61 | #ifdef CONFIG_SYSCTL | |
62 | ||
63 | static | |
64 | int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp, | |
65 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
66 | { | |
67 | int val = ipv4_devconf.forwarding; | |
68 | int ret; | |
69 | ||
70 | ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); | |
71 | ||
72 | if (write && ipv4_devconf.forwarding != val) | |
73 | inet_forward_change(); | |
74 | ||
75 | return ret; | |
76 | } | |
77 | ||
78 | static int ipv4_sysctl_forward_strategy(ctl_table *table, | |
79 | int __user *name, int nlen, | |
80 | void __user *oldval, size_t __user *oldlenp, | |
81 | void __user *newval, size_t newlen, | |
82 | void **context) | |
83 | { | |
84 | int *valp = table->data; | |
85 | int new; | |
86 | ||
87 | if (!newval || !newlen) | |
88 | return 0; | |
89 | ||
90 | if (newlen != sizeof(int)) | |
91 | return -EINVAL; | |
92 | ||
93 | if (get_user(new, (int __user *)newval)) | |
94 | return -EFAULT; | |
95 | ||
96 | if (new == *valp) | |
97 | return 0; | |
98 | ||
99 | if (oldval && oldlenp) { | |
100 | size_t len; | |
101 | ||
102 | if (get_user(len, oldlenp)) | |
103 | return -EFAULT; | |
104 | ||
105 | if (len) { | |
106 | if (len > table->maxlen) | |
107 | len = table->maxlen; | |
108 | if (copy_to_user(oldval, valp, len)) | |
109 | return -EFAULT; | |
110 | if (put_user(len, oldlenp)) | |
111 | return -EFAULT; | |
112 | } | |
113 | } | |
114 | ||
115 | *valp = new; | |
116 | inet_forward_change(); | |
117 | return 1; | |
118 | } | |
119 | ||
120 | ctl_table ipv4_table[] = { | |
121 | { | |
122 | .ctl_name = NET_IPV4_TCP_TIMESTAMPS, | |
123 | .procname = "tcp_timestamps", | |
124 | .data = &sysctl_tcp_timestamps, | |
125 | .maxlen = sizeof(int), | |
126 | .mode = 0644, | |
127 | .proc_handler = &proc_dointvec | |
128 | }, | |
129 | { | |
130 | .ctl_name = NET_IPV4_TCP_WINDOW_SCALING, | |
131 | .procname = "tcp_window_scaling", | |
132 | .data = &sysctl_tcp_window_scaling, | |
133 | .maxlen = sizeof(int), | |
134 | .mode = 0644, | |
135 | .proc_handler = &proc_dointvec | |
136 | }, | |
137 | { | |
138 | .ctl_name = NET_IPV4_TCP_SACK, | |
139 | .procname = "tcp_sack", | |
140 | .data = &sysctl_tcp_sack, | |
141 | .maxlen = sizeof(int), | |
142 | .mode = 0644, | |
143 | .proc_handler = &proc_dointvec | |
144 | }, | |
145 | { | |
146 | .ctl_name = NET_IPV4_TCP_RETRANS_COLLAPSE, | |
147 | .procname = "tcp_retrans_collapse", | |
148 | .data = &sysctl_tcp_retrans_collapse, | |
149 | .maxlen = sizeof(int), | |
150 | .mode = 0644, | |
151 | .proc_handler = &proc_dointvec | |
152 | }, | |
153 | { | |
154 | .ctl_name = NET_IPV4_FORWARD, | |
155 | .procname = "ip_forward", | |
156 | .data = &ipv4_devconf.forwarding, | |
157 | .maxlen = sizeof(int), | |
158 | .mode = 0644, | |
159 | .proc_handler = &ipv4_sysctl_forward, | |
160 | .strategy = &ipv4_sysctl_forward_strategy | |
161 | }, | |
162 | { | |
163 | .ctl_name = NET_IPV4_DEFAULT_TTL, | |
164 | .procname = "ip_default_ttl", | |
165 | .data = &sysctl_ip_default_ttl, | |
166 | .maxlen = sizeof(int), | |
167 | .mode = 0644, | |
168 | .proc_handler = &ipv4_doint_and_flush, | |
169 | .strategy = &ipv4_doint_and_flush_strategy, | |
170 | }, | |
171 | { | |
172 | .ctl_name = NET_IPV4_AUTOCONFIG, | |
173 | .procname = "ip_autoconfig", | |
174 | .data = &ipv4_config.autoconfig, | |
175 | .maxlen = sizeof(int), | |
176 | .mode = 0644, | |
177 | .proc_handler = &proc_dointvec | |
178 | }, | |
179 | { | |
180 | .ctl_name = NET_IPV4_NO_PMTU_DISC, | |
181 | .procname = "ip_no_pmtu_disc", | |
182 | .data = &ipv4_config.no_pmtu_disc, | |
183 | .maxlen = sizeof(int), | |
184 | .mode = 0644, | |
185 | .proc_handler = &proc_dointvec | |
186 | }, | |
187 | { | |
188 | .ctl_name = NET_IPV4_NONLOCAL_BIND, | |
189 | .procname = "ip_nonlocal_bind", | |
190 | .data = &sysctl_ip_nonlocal_bind, | |
191 | .maxlen = sizeof(int), | |
192 | .mode = 0644, | |
193 | .proc_handler = &proc_dointvec | |
194 | }, | |
195 | { | |
196 | .ctl_name = NET_IPV4_TCP_SYN_RETRIES, | |
197 | .procname = "tcp_syn_retries", | |
198 | .data = &sysctl_tcp_syn_retries, | |
199 | .maxlen = sizeof(int), | |
200 | .mode = 0644, | |
201 | .proc_handler = &proc_dointvec | |
202 | }, | |
203 | { | |
204 | .ctl_name = NET_TCP_SYNACK_RETRIES, | |
205 | .procname = "tcp_synack_retries", | |
206 | .data = &sysctl_tcp_synack_retries, | |
207 | .maxlen = sizeof(int), | |
208 | .mode = 0644, | |
209 | .proc_handler = &proc_dointvec | |
210 | }, | |
211 | { | |
212 | .ctl_name = NET_TCP_MAX_ORPHANS, | |
213 | .procname = "tcp_max_orphans", | |
214 | .data = &sysctl_tcp_max_orphans, | |
215 | .maxlen = sizeof(int), | |
216 | .mode = 0644, | |
217 | .proc_handler = &proc_dointvec | |
218 | }, | |
219 | { | |
220 | .ctl_name = NET_TCP_MAX_TW_BUCKETS, | |
221 | .procname = "tcp_max_tw_buckets", | |
222 | .data = &sysctl_tcp_max_tw_buckets, | |
223 | .maxlen = sizeof(int), | |
224 | .mode = 0644, | |
225 | .proc_handler = &proc_dointvec | |
226 | }, | |
227 | { | |
228 | .ctl_name = NET_IPV4_IPFRAG_HIGH_THRESH, | |
229 | .procname = "ipfrag_high_thresh", | |
230 | .data = &sysctl_ipfrag_high_thresh, | |
231 | .maxlen = sizeof(int), | |
232 | .mode = 0644, | |
233 | .proc_handler = &proc_dointvec | |
234 | }, | |
235 | { | |
236 | .ctl_name = NET_IPV4_IPFRAG_LOW_THRESH, | |
237 | .procname = "ipfrag_low_thresh", | |
238 | .data = &sysctl_ipfrag_low_thresh, | |
239 | .maxlen = sizeof(int), | |
240 | .mode = 0644, | |
241 | .proc_handler = &proc_dointvec | |
242 | }, | |
243 | { | |
244 | .ctl_name = NET_IPV4_DYNADDR, | |
245 | .procname = "ip_dynaddr", | |
246 | .data = &sysctl_ip_dynaddr, | |
247 | .maxlen = sizeof(int), | |
248 | .mode = 0644, | |
249 | .proc_handler = &proc_dointvec | |
250 | }, | |
251 | { | |
252 | .ctl_name = NET_IPV4_IPFRAG_TIME, | |
253 | .procname = "ipfrag_time", | |
254 | .data = &sysctl_ipfrag_time, | |
255 | .maxlen = sizeof(int), | |
256 | .mode = 0644, | |
257 | .proc_handler = &proc_dointvec_jiffies, | |
258 | .strategy = &sysctl_jiffies | |
259 | }, | |
260 | { | |
261 | .ctl_name = NET_IPV4_TCP_KEEPALIVE_TIME, | |
262 | .procname = "tcp_keepalive_time", | |
263 | .data = &sysctl_tcp_keepalive_time, | |
264 | .maxlen = sizeof(int), | |
265 | .mode = 0644, | |
266 | .proc_handler = &proc_dointvec_jiffies, | |
267 | .strategy = &sysctl_jiffies | |
268 | }, | |
269 | { | |
270 | .ctl_name = NET_IPV4_TCP_KEEPALIVE_PROBES, | |
271 | .procname = "tcp_keepalive_probes", | |
272 | .data = &sysctl_tcp_keepalive_probes, | |
273 | .maxlen = sizeof(int), | |
274 | .mode = 0644, | |
275 | .proc_handler = &proc_dointvec | |
276 | }, | |
277 | { | |
278 | .ctl_name = NET_IPV4_TCP_KEEPALIVE_INTVL, | |
279 | .procname = "tcp_keepalive_intvl", | |
280 | .data = &sysctl_tcp_keepalive_intvl, | |
281 | .maxlen = sizeof(int), | |
282 | .mode = 0644, | |
283 | .proc_handler = &proc_dointvec_jiffies, | |
284 | .strategy = &sysctl_jiffies | |
285 | }, | |
286 | { | |
287 | .ctl_name = NET_IPV4_TCP_RETRIES1, | |
288 | .procname = "tcp_retries1", | |
289 | .data = &sysctl_tcp_retries1, | |
290 | .maxlen = sizeof(int), | |
291 | .mode = 0644, | |
292 | .proc_handler = &proc_dointvec_minmax, | |
293 | .strategy = &sysctl_intvec, | |
294 | .extra2 = &tcp_retr1_max | |
295 | }, | |
296 | { | |
297 | .ctl_name = NET_IPV4_TCP_RETRIES2, | |
298 | .procname = "tcp_retries2", | |
299 | .data = &sysctl_tcp_retries2, | |
300 | .maxlen = sizeof(int), | |
301 | .mode = 0644, | |
302 | .proc_handler = &proc_dointvec | |
303 | }, | |
304 | { | |
305 | .ctl_name = NET_IPV4_TCP_FIN_TIMEOUT, | |
306 | .procname = "tcp_fin_timeout", | |
307 | .data = &sysctl_tcp_fin_timeout, | |
308 | .maxlen = sizeof(int), | |
309 | .mode = 0644, | |
310 | .proc_handler = &proc_dointvec_jiffies, | |
311 | .strategy = &sysctl_jiffies | |
312 | }, | |
313 | #ifdef CONFIG_SYN_COOKIES | |
314 | { | |
315 | .ctl_name = NET_TCP_SYNCOOKIES, | |
316 | .procname = "tcp_syncookies", | |
317 | .data = &sysctl_tcp_syncookies, | |
318 | .maxlen = sizeof(int), | |
319 | .mode = 0644, | |
320 | .proc_handler = &proc_dointvec | |
321 | }, | |
322 | #endif | |
323 | { | |
324 | .ctl_name = NET_TCP_TW_RECYCLE, | |
325 | .procname = "tcp_tw_recycle", | |
326 | .data = &sysctl_tcp_tw_recycle, | |
327 | .maxlen = sizeof(int), | |
328 | .mode = 0644, | |
329 | .proc_handler = &proc_dointvec | |
330 | }, | |
331 | { | |
332 | .ctl_name = NET_TCP_ABORT_ON_OVERFLOW, | |
333 | .procname = "tcp_abort_on_overflow", | |
334 | .data = &sysctl_tcp_abort_on_overflow, | |
335 | .maxlen = sizeof(int), | |
336 | .mode = 0644, | |
337 | .proc_handler = &proc_dointvec | |
338 | }, | |
339 | { | |
340 | .ctl_name = NET_TCP_STDURG, | |
341 | .procname = "tcp_stdurg", | |
342 | .data = &sysctl_tcp_stdurg, | |
343 | .maxlen = sizeof(int), | |
344 | .mode = 0644, | |
345 | .proc_handler = &proc_dointvec | |
346 | }, | |
347 | { | |
348 | .ctl_name = NET_TCP_RFC1337, | |
349 | .procname = "tcp_rfc1337", | |
350 | .data = &sysctl_tcp_rfc1337, | |
351 | .maxlen = sizeof(int), | |
352 | .mode = 0644, | |
353 | .proc_handler = &proc_dointvec | |
354 | }, | |
355 | { | |
356 | .ctl_name = NET_TCP_MAX_SYN_BACKLOG, | |
357 | .procname = "tcp_max_syn_backlog", | |
358 | .data = &sysctl_max_syn_backlog, | |
359 | .maxlen = sizeof(int), | |
360 | .mode = 0644, | |
361 | .proc_handler = &proc_dointvec | |
362 | }, | |
363 | { | |
364 | .ctl_name = NET_IPV4_LOCAL_PORT_RANGE, | |
365 | .procname = "ip_local_port_range", | |
366 | .data = &sysctl_local_port_range, | |
367 | .maxlen = sizeof(sysctl_local_port_range), | |
368 | .mode = 0644, | |
369 | .proc_handler = &proc_dointvec_minmax, | |
370 | .strategy = &sysctl_intvec, | |
371 | .extra1 = ip_local_port_range_min, | |
372 | .extra2 = ip_local_port_range_max | |
373 | }, | |
374 | { | |
375 | .ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_ALL, | |
376 | .procname = "icmp_echo_ignore_all", | |
377 | .data = &sysctl_icmp_echo_ignore_all, | |
378 | .maxlen = sizeof(int), | |
379 | .mode = 0644, | |
380 | .proc_handler = &proc_dointvec | |
381 | }, | |
382 | { | |
383 | .ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, | |
384 | .procname = "icmp_echo_ignore_broadcasts", | |
385 | .data = &sysctl_icmp_echo_ignore_broadcasts, | |
386 | .maxlen = sizeof(int), | |
387 | .mode = 0644, | |
388 | .proc_handler = &proc_dointvec | |
389 | }, | |
390 | { | |
391 | .ctl_name = NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, | |
392 | .procname = "icmp_ignore_bogus_error_responses", | |
393 | .data = &sysctl_icmp_ignore_bogus_error_responses, | |
394 | .maxlen = sizeof(int), | |
395 | .mode = 0644, | |
396 | .proc_handler = &proc_dointvec | |
397 | }, | |
398 | { | |
399 | .ctl_name = NET_IPV4_ROUTE, | |
400 | .procname = "route", | |
401 | .maxlen = 0, | |
402 | .mode = 0555, | |
403 | .child = ipv4_route_table | |
404 | }, | |
405 | #ifdef CONFIG_IP_MULTICAST | |
406 | { | |
407 | .ctl_name = NET_IPV4_IGMP_MAX_MEMBERSHIPS, | |
408 | .procname = "igmp_max_memberships", | |
409 | .data = &sysctl_igmp_max_memberships, | |
410 | .maxlen = sizeof(int), | |
411 | .mode = 0644, | |
412 | .proc_handler = &proc_dointvec | |
413 | }, | |
414 | ||
415 | #endif | |
416 | { | |
417 | .ctl_name = NET_IPV4_IGMP_MAX_MSF, | |
418 | .procname = "igmp_max_msf", | |
419 | .data = &sysctl_igmp_max_msf, | |
420 | .maxlen = sizeof(int), | |
421 | .mode = 0644, | |
422 | .proc_handler = &proc_dointvec | |
423 | }, | |
424 | { | |
425 | .ctl_name = NET_IPV4_INET_PEER_THRESHOLD, | |
426 | .procname = "inet_peer_threshold", | |
427 | .data = &inet_peer_threshold, | |
428 | .maxlen = sizeof(int), | |
429 | .mode = 0644, | |
430 | .proc_handler = &proc_dointvec | |
431 | }, | |
432 | { | |
433 | .ctl_name = NET_IPV4_INET_PEER_MINTTL, | |
434 | .procname = "inet_peer_minttl", | |
435 | .data = &inet_peer_minttl, | |
436 | .maxlen = sizeof(int), | |
437 | .mode = 0644, | |
438 | .proc_handler = &proc_dointvec_jiffies, | |
439 | .strategy = &sysctl_jiffies | |
440 | }, | |
441 | { | |
442 | .ctl_name = NET_IPV4_INET_PEER_MAXTTL, | |
443 | .procname = "inet_peer_maxttl", | |
444 | .data = &inet_peer_maxttl, | |
445 | .maxlen = sizeof(int), | |
446 | .mode = 0644, | |
447 | .proc_handler = &proc_dointvec_jiffies, | |
448 | .strategy = &sysctl_jiffies | |
449 | }, | |
450 | { | |
451 | .ctl_name = NET_IPV4_INET_PEER_GC_MINTIME, | |
452 | .procname = "inet_peer_gc_mintime", | |
453 | .data = &inet_peer_gc_mintime, | |
454 | .maxlen = sizeof(int), | |
455 | .mode = 0644, | |
456 | .proc_handler = &proc_dointvec_jiffies, | |
457 | .strategy = &sysctl_jiffies | |
458 | }, | |
459 | { | |
460 | .ctl_name = NET_IPV4_INET_PEER_GC_MAXTIME, | |
461 | .procname = "inet_peer_gc_maxtime", | |
462 | .data = &inet_peer_gc_maxtime, | |
463 | .maxlen = sizeof(int), | |
464 | .mode = 0644, | |
465 | .proc_handler = &proc_dointvec_jiffies, | |
466 | .strategy = &sysctl_jiffies | |
467 | }, | |
468 | { | |
469 | .ctl_name = NET_TCP_ORPHAN_RETRIES, | |
470 | .procname = "tcp_orphan_retries", | |
471 | .data = &sysctl_tcp_orphan_retries, | |
472 | .maxlen = sizeof(int), | |
473 | .mode = 0644, | |
474 | .proc_handler = &proc_dointvec | |
475 | }, | |
476 | { | |
477 | .ctl_name = NET_TCP_FACK, | |
478 | .procname = "tcp_fack", | |
479 | .data = &sysctl_tcp_fack, | |
480 | .maxlen = sizeof(int), | |
481 | .mode = 0644, | |
482 | .proc_handler = &proc_dointvec | |
483 | }, | |
484 | { | |
485 | .ctl_name = NET_TCP_REORDERING, | |
486 | .procname = "tcp_reordering", | |
487 | .data = &sysctl_tcp_reordering, | |
488 | .maxlen = sizeof(int), | |
489 | .mode = 0644, | |
490 | .proc_handler = &proc_dointvec | |
491 | }, | |
492 | { | |
493 | .ctl_name = NET_TCP_ECN, | |
494 | .procname = "tcp_ecn", | |
495 | .data = &sysctl_tcp_ecn, | |
496 | .maxlen = sizeof(int), | |
497 | .mode = 0644, | |
498 | .proc_handler = &proc_dointvec | |
499 | }, | |
500 | { | |
501 | .ctl_name = NET_TCP_DSACK, | |
502 | .procname = "tcp_dsack", | |
503 | .data = &sysctl_tcp_dsack, | |
504 | .maxlen = sizeof(int), | |
505 | .mode = 0644, | |
506 | .proc_handler = &proc_dointvec | |
507 | }, | |
508 | { | |
509 | .ctl_name = NET_TCP_MEM, | |
510 | .procname = "tcp_mem", | |
511 | .data = &sysctl_tcp_mem, | |
512 | .maxlen = sizeof(sysctl_tcp_mem), | |
513 | .mode = 0644, | |
514 | .proc_handler = &proc_dointvec | |
515 | }, | |
516 | { | |
517 | .ctl_name = NET_TCP_WMEM, | |
518 | .procname = "tcp_wmem", | |
519 | .data = &sysctl_tcp_wmem, | |
520 | .maxlen = sizeof(sysctl_tcp_wmem), | |
521 | .mode = 0644, | |
522 | .proc_handler = &proc_dointvec | |
523 | }, | |
524 | { | |
525 | .ctl_name = NET_TCP_RMEM, | |
526 | .procname = "tcp_rmem", | |
527 | .data = &sysctl_tcp_rmem, | |
528 | .maxlen = sizeof(sysctl_tcp_rmem), | |
529 | .mode = 0644, | |
530 | .proc_handler = &proc_dointvec | |
531 | }, | |
532 | { | |
533 | .ctl_name = NET_TCP_APP_WIN, | |
534 | .procname = "tcp_app_win", | |
535 | .data = &sysctl_tcp_app_win, | |
536 | .maxlen = sizeof(int), | |
537 | .mode = 0644, | |
538 | .proc_handler = &proc_dointvec | |
539 | }, | |
540 | { | |
541 | .ctl_name = NET_TCP_ADV_WIN_SCALE, | |
542 | .procname = "tcp_adv_win_scale", | |
543 | .data = &sysctl_tcp_adv_win_scale, | |
544 | .maxlen = sizeof(int), | |
545 | .mode = 0644, | |
546 | .proc_handler = &proc_dointvec | |
547 | }, | |
548 | { | |
549 | .ctl_name = NET_IPV4_ICMP_RATELIMIT, | |
550 | .procname = "icmp_ratelimit", | |
551 | .data = &sysctl_icmp_ratelimit, | |
552 | .maxlen = sizeof(int), | |
553 | .mode = 0644, | |
554 | .proc_handler = &proc_dointvec | |
555 | }, | |
556 | { | |
557 | .ctl_name = NET_IPV4_ICMP_RATEMASK, | |
558 | .procname = "icmp_ratemask", | |
559 | .data = &sysctl_icmp_ratemask, | |
560 | .maxlen = sizeof(int), | |
561 | .mode = 0644, | |
562 | .proc_handler = &proc_dointvec | |
563 | }, | |
564 | { | |
565 | .ctl_name = NET_TCP_TW_REUSE, | |
566 | .procname = "tcp_tw_reuse", | |
567 | .data = &sysctl_tcp_tw_reuse, | |
568 | .maxlen = sizeof(int), | |
569 | .mode = 0644, | |
570 | .proc_handler = &proc_dointvec | |
571 | }, | |
572 | { | |
573 | .ctl_name = NET_TCP_FRTO, | |
574 | .procname = "tcp_frto", | |
575 | .data = &sysctl_tcp_frto, | |
576 | .maxlen = sizeof(int), | |
577 | .mode = 0644, | |
578 | .proc_handler = &proc_dointvec | |
579 | }, | |
580 | { | |
581 | .ctl_name = NET_TCP_LOW_LATENCY, | |
582 | .procname = "tcp_low_latency", | |
583 | .data = &sysctl_tcp_low_latency, | |
584 | .maxlen = sizeof(int), | |
585 | .mode = 0644, | |
586 | .proc_handler = &proc_dointvec | |
587 | }, | |
588 | { | |
589 | .ctl_name = NET_IPV4_IPFRAG_SECRET_INTERVAL, | |
590 | .procname = "ipfrag_secret_interval", | |
591 | .data = &sysctl_ipfrag_secret_interval, | |
592 | .maxlen = sizeof(int), | |
593 | .mode = 0644, | |
594 | .proc_handler = &proc_dointvec_jiffies, | |
595 | .strategy = &sysctl_jiffies | |
596 | }, | |
597 | { | |
598 | .ctl_name = NET_TCP_NO_METRICS_SAVE, | |
599 | .procname = "tcp_no_metrics_save", | |
600 | .data = &sysctl_tcp_nometrics_save, | |
601 | .maxlen = sizeof(int), | |
602 | .mode = 0644, | |
603 | .proc_handler = &proc_dointvec, | |
604 | }, | |
605 | { | |
606 | .ctl_name = NET_TCP_WESTWOOD, | |
607 | .procname = "tcp_westwood", | |
608 | .data = &sysctl_tcp_westwood, | |
609 | .maxlen = sizeof(int), | |
610 | .mode = 0644, | |
611 | .proc_handler = &proc_dointvec, | |
612 | }, | |
613 | { | |
614 | .ctl_name = NET_TCP_VEGAS, | |
615 | .procname = "tcp_vegas_cong_avoid", | |
616 | .data = &sysctl_tcp_vegas_cong_avoid, | |
617 | .maxlen = sizeof(int), | |
618 | .mode = 0644, | |
619 | .proc_handler = &proc_dointvec, | |
620 | }, | |
621 | { | |
622 | .ctl_name = NET_TCP_VEGAS_ALPHA, | |
623 | .procname = "tcp_vegas_alpha", | |
624 | .data = &sysctl_tcp_vegas_alpha, | |
625 | .maxlen = sizeof(int), | |
626 | .mode = 0644, | |
627 | .proc_handler = &proc_dointvec, | |
628 | }, | |
629 | { | |
630 | .ctl_name = NET_TCP_VEGAS_BETA, | |
631 | .procname = "tcp_vegas_beta", | |
632 | .data = &sysctl_tcp_vegas_beta, | |
633 | .maxlen = sizeof(int), | |
634 | .mode = 0644, | |
635 | .proc_handler = &proc_dointvec, | |
636 | }, | |
637 | { | |
638 | .ctl_name = NET_TCP_VEGAS_GAMMA, | |
639 | .procname = "tcp_vegas_gamma", | |
640 | .data = &sysctl_tcp_vegas_gamma, | |
641 | .maxlen = sizeof(int), | |
642 | .mode = 0644, | |
643 | .proc_handler = &proc_dointvec, | |
644 | }, | |
645 | { | |
646 | .ctl_name = NET_TCP_BIC, | |
647 | .procname = "tcp_bic", | |
648 | .data = &sysctl_tcp_bic, | |
649 | .maxlen = sizeof(int), | |
650 | .mode = 0644, | |
651 | .proc_handler = &proc_dointvec, | |
652 | }, | |
653 | { | |
654 | .ctl_name = NET_TCP_BIC_FAST_CONVERGENCE, | |
655 | .procname = "tcp_bic_fast_convergence", | |
656 | .data = &sysctl_tcp_bic_fast_convergence, | |
657 | .maxlen = sizeof(int), | |
658 | .mode = 0644, | |
659 | .proc_handler = &proc_dointvec, | |
660 | }, | |
661 | { | |
662 | .ctl_name = NET_TCP_BIC_LOW_WINDOW, | |
663 | .procname = "tcp_bic_low_window", | |
664 | .data = &sysctl_tcp_bic_low_window, | |
665 | .maxlen = sizeof(int), | |
666 | .mode = 0644, | |
667 | .proc_handler = &proc_dointvec, | |
668 | }, | |
669 | { | |
670 | .ctl_name = NET_TCP_MODERATE_RCVBUF, | |
671 | .procname = "tcp_moderate_rcvbuf", | |
672 | .data = &sysctl_tcp_moderate_rcvbuf, | |
673 | .maxlen = sizeof(int), | |
674 | .mode = 0644, | |
675 | .proc_handler = &proc_dointvec, | |
676 | }, | |
677 | { | |
678 | .ctl_name = NET_TCP_TSO_WIN_DIVISOR, | |
679 | .procname = "tcp_tso_win_divisor", | |
680 | .data = &sysctl_tcp_tso_win_divisor, | |
681 | .maxlen = sizeof(int), | |
682 | .mode = 0644, | |
683 | .proc_handler = &proc_dointvec, | |
684 | }, | |
685 | { | |
686 | .ctl_name = NET_TCP_BIC_BETA, | |
687 | .procname = "tcp_bic_beta", | |
688 | .data = &sysctl_tcp_bic_beta, | |
689 | .maxlen = sizeof(int), | |
690 | .mode = 0644, | |
691 | .proc_handler = &proc_dointvec, | |
692 | }, | |
693 | { .ctl_name = 0 } | |
694 | }; | |
695 | ||
696 | #endif /* CONFIG_SYSCTL */ | |
697 | ||
698 | EXPORT_SYMBOL(ipv4_config); |