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   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
  12 #include <linux/mm.h>
  13 #include <linux/sysctl.h>
  14 #include "dccp.h"
  15 #include "feat.h"
  16
  17 #ifndef CONFIG_SYSCTL
  18 #error This file should not be compiled without CONFIG_SYSCTL defined
  19 #endif
  20
  21 static struct ctl_table dccp_default_table[] = {
  22         {
  23                 .procname       = "seq_window",
  24                 .data           = &sysctl_dccp_feat_sequence_window,
  25                 .maxlen         = sizeof(sysctl_dccp_feat_sequence_window),
  26                 .mode           = 0644,
  27                 .proc_handler   = proc_dointvec,
  28         },
  29         {
  30                 .procname       = "rx_ccid",
  31                 .data           = &sysctl_dccp_feat_rx_ccid,
  32                 .maxlen         = sizeof(sysctl_dccp_feat_rx_ccid),
  33                 .mode           = 0644,
  34                 .proc_handler   = proc_dointvec,
  35         },
  36         {
  37                 .procname       = "tx_ccid",
  38                 .data           = &sysctl_dccp_feat_tx_ccid,
  39                 .maxlen         = sizeof(sysctl_dccp_feat_tx_ccid),
  40                 .mode           = 0644,
  41                 .proc_handler   = proc_dointvec,
  42         },
  43         {
  44                 .procname       = "ack_ratio",
  45                 .data           = &sysctl_dccp_feat_ack_ratio,
  46                 .maxlen         = sizeof(sysctl_dccp_feat_ack_ratio),
  47                 .mode           = 0644,
  48                 .proc_handler   = proc_dointvec,
  49         },
  50         {
  51                 .procname       = "send_ackvec",
  52                 .data           = &sysctl_dccp_feat_send_ack_vector,
  53                 .maxlen         = sizeof(sysctl_dccp_feat_send_ack_vector),
  54                 .mode           = 0644,
  55                 .proc_handler   = proc_dointvec,
  56         },
  57         {
  58                 .procname       = "send_ndp",
  59                 .data           = &sysctl_dccp_feat_send_ndp_count,
  60                 .maxlen         = sizeof(sysctl_dccp_feat_send_ndp_count),
  61                 .mode           = 0644,
  62                 .proc_handler   = proc_dointvec,
  63         },
  64         {
  65                 .procname       = "request_retries",
  66                 .data           = &sysctl_dccp_request_retries,
  67                 .maxlen         = sizeof(sysctl_dccp_request_retries),
  68                 .mode           = 0644,
  69                 .proc_handler   = proc_dointvec,
  70         },
  71         {
  72                 .procname       = "retries1",
  73                 .data           = &sysctl_dccp_retries1,
  74                 .maxlen         = sizeof(sysctl_dccp_retries1),
  75                 .mode           = 0644,
  76                 .proc_handler   = proc_dointvec,
  77         },
  78         {
  79                 .procname       = "retries2",
  80                 .data           = &sysctl_dccp_retries2,
  81                 .maxlen         = sizeof(sysctl_dccp_retries2),
  82                 .mode           = 0644,
  83                 .proc_handler   = proc_dointvec,
  84         },
  85         {
  86                 .procname       = "tx_qlen",
  87                 .data           = &sysctl_dccp_tx_qlen,
  88                 .maxlen         = sizeof(sysctl_dccp_tx_qlen),
  89                 .mode           = 0644,
  90                 .proc_handler   = proc_dointvec,
  91         },
  92         {
  93                 .procname       = "sync_ratelimit",
  94                 .data           = &sysctl_dccp_sync_ratelimit,
  95                 .maxlen         = sizeof(sysctl_dccp_sync_ratelimit),
  96                 .mode           = 0644,
  97                 .proc_handler   = proc_dointvec_ms_jiffies,
  98         },
  99
 100         { .ctl_name = 0, }
 101 };
 102
 103 static struct ctl_table dccp_table[] = {
 104         {
 105                 .ctl_name       = NET_DCCP_DEFAULT,
 106                 .procname       = "default",
 107                 .mode           = 0555,
 108                 .child          = dccp_default_table,
 109         },
 110         { .ctl_name = 0, },
 111 };
 112
 113 static struct ctl_table dccp_dir_table[] = {
 114         {
 115                 .ctl_name       = NET_DCCP,
 116                 .procname       = "dccp",
 117                 .mode           = 0555,
 118                 .child          = dccp_table,
 119         },
 120         { .ctl_name = 0, },
 121 };
 122
 123 static struct ctl_table dccp_root_table[] = {
 124         {
 125                 .ctl_name       = CTL_NET,
 126                 .procname       = "net",
 127                 .mode           = 0555,
 128                 .child          = dccp_dir_table,
 129         },
 130         { .ctl_name = 0, },
 131 };
 132
 133 static struct ctl_table_header *dccp_table_header;
 134
 135 int __init dccp_sysctl_init(void)
 136 {
 137         dccp_table_header = register_sysctl_table(dccp_root_table);
 138
 139         return dccp_table_header != NULL ? 0 : -ENOMEM;
 140 }
 141
 142 void dccp_sysctl_exit(void)
 143 {
 144         if (dccp_table_header != NULL) {
 145                 unregister_sysctl_table(dccp_table_header);
 146                 dccp_table_header = NULL;
 147         }
 148 }