Commit | Line | Data |
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e55d912f ACM |
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 | ||
e55d912f ACM |
12 | #include <linux/mm.h> |
13 | #include <linux/sysctl.h> | |
2e2e9e92 | 14 | #include "dccp.h" |
2a0109a7 | 15 | #include "feat.h" |
e55d912f ACM |
16 | |
17 | #ifndef CONFIG_SYSCTL | |
18 | #error This file should not be compiled without CONFIG_SYSCTL defined | |
19 | #endif | |
20 | ||
883ca833 GR |
21 | /* Boundary values */ |
22 | static int zero = 0, | |
8ba7e7bf | 23 | one = 1, |
883ca833 | 24 | u8_max = 0xFF; |
bfbb2346 GR |
25 | static unsigned long seqw_min = DCCPF_SEQ_WMIN, |
26 | seqw_max = 0xFFFFFFFF; /* maximum on 32 bit */ | |
883ca833 | 27 | |
e55d912f ACM |
28 | static struct ctl_table dccp_default_table[] = { |
29 | { | |
e55d912f | 30 | .procname = "seq_window", |
883ca833 GR |
31 | .data = &sysctl_dccp_sequence_window, |
32 | .maxlen = sizeof(sysctl_dccp_sequence_window), | |
e55d912f | 33 | .mode = 0644, |
883ca833 GR |
34 | .proc_handler = proc_doulongvec_minmax, |
35 | .extra1 = &seqw_min, /* RFC 4340, 7.5.2 */ | |
bfbb2346 | 36 | .extra2 = &seqw_max, |
e55d912f ACM |
37 | }, |
38 | { | |
e55d912f | 39 | .procname = "rx_ccid", |
883ca833 GR |
40 | .data = &sysctl_dccp_rx_ccid, |
41 | .maxlen = sizeof(sysctl_dccp_rx_ccid), | |
e55d912f | 42 | .mode = 0644, |
883ca833 GR |
43 | .proc_handler = proc_dointvec_minmax, |
44 | .extra1 = &zero, | |
45 | .extra2 = &u8_max, /* RFC 4340, 10. */ | |
e55d912f ACM |
46 | }, |
47 | { | |
e55d912f | 48 | .procname = "tx_ccid", |
883ca833 GR |
49 | .data = &sysctl_dccp_tx_ccid, |
50 | .maxlen = sizeof(sysctl_dccp_tx_ccid), | |
e55d912f | 51 | .mode = 0644, |
883ca833 GR |
52 | .proc_handler = proc_dointvec_minmax, |
53 | .extra1 = &zero, | |
54 | .extra2 = &u8_max, /* RFC 4340, 10. */ | |
e55d912f | 55 | }, |
2e2e9e92 | 56 | { |
2e2e9e92 GR |
57 | .procname = "request_retries", |
58 | .data = &sysctl_dccp_request_retries, | |
59 | .maxlen = sizeof(sysctl_dccp_request_retries), | |
60 | .mode = 0644, | |
883ca833 | 61 | .proc_handler = proc_dointvec_minmax, |
8ba7e7bf | 62 | .extra1 = &one, |
883ca833 | 63 | .extra2 = &u8_max, |
2e2e9e92 GR |
64 | }, |
65 | { | |
2e2e9e92 GR |
66 | .procname = "retries1", |
67 | .data = &sysctl_dccp_retries1, | |
68 | .maxlen = sizeof(sysctl_dccp_retries1), | |
69 | .mode = 0644, | |
883ca833 GR |
70 | .proc_handler = proc_dointvec_minmax, |
71 | .extra1 = &zero, | |
72 | .extra2 = &u8_max, | |
2e2e9e92 GR |
73 | }, |
74 | { | |
2e2e9e92 GR |
75 | .procname = "retries2", |
76 | .data = &sysctl_dccp_retries2, | |
77 | .maxlen = sizeof(sysctl_dccp_retries2), | |
78 | .mode = 0644, | |
883ca833 GR |
79 | .proc_handler = proc_dointvec_minmax, |
80 | .extra1 = &zero, | |
81 | .extra2 = &u8_max, | |
2e2e9e92 | 82 | }, |
82e3ab9d | 83 | { |
82e3ab9d IM |
84 | .procname = "tx_qlen", |
85 | .data = &sysctl_dccp_tx_qlen, | |
86 | .maxlen = sizeof(sysctl_dccp_tx_qlen), | |
87 | .mode = 0644, | |
883ca833 GR |
88 | .proc_handler = proc_dointvec_minmax, |
89 | .extra1 = &zero, | |
82e3ab9d | 90 | }, |
a94f0f97 GR |
91 | { |
92 | .procname = "sync_ratelimit", | |
93 | .data = &sysctl_dccp_sync_ratelimit, | |
94 | .maxlen = sizeof(sysctl_dccp_sync_ratelimit), | |
95 | .mode = 0644, | |
96 | .proc_handler = proc_dointvec_ms_jiffies, | |
97 | }, | |
82e3ab9d | 98 | |
f8572d8f | 99 | { } |
e55d912f ACM |
100 | }; |
101 | ||
e55d912f ACM |
102 | static struct ctl_table_header *dccp_table_header; |
103 | ||
104 | int __init dccp_sysctl_init(void) | |
105 | { | |
ec8f23ce | 106 | dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default", |
b5ccd792 | 107 | dccp_default_table); |
e55d912f ACM |
108 | |
109 | return dccp_table_header != NULL ? 0 : -ENOMEM; | |
110 | } | |
111 | ||
112 | void dccp_sysctl_exit(void) | |
113 | { | |
114 | if (dccp_table_header != NULL) { | |
5dd3df10 | 115 | unregister_net_sysctl_table(dccp_table_header); |
e55d912f ACM |
116 | dccp_table_header = NULL; |
117 | } | |
118 | } |