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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 "feat.h"
  15
  16 #ifndef CONFIG_SYSCTL
  17 #error This file should not be compiled without CONFIG_SYSCTL defined
  18 #endif
  19
  20 static struct ctl_table dccp_default_table[] = {
  21         {
  22                 .ctl_name       = NET_DCCP_DEFAULT_SEQ_WINDOW,
  23                 .procname       = "seq_window",
  24                 .data           = &dccp_feat_default_sequence_window,
  25                 .maxlen         = sizeof(dccp_feat_default_sequence_window),
  26                 .mode           = 0644,
  27                 .proc_handler   = proc_dointvec,
  28         },
  29         {
  30                 .ctl_name       = NET_DCCP_DEFAULT_RX_CCID,
  31                 .procname       = "rx_ccid",
  32                 .data           = &dccp_feat_default_rx_ccid,
  33                 .maxlen         = sizeof(dccp_feat_default_rx_ccid),
  34                 .mode           = 0644,
  35                 .proc_handler   = proc_dointvec,
  36         },
  37         {
  38                 .ctl_name       = NET_DCCP_DEFAULT_TX_CCID,
  39                 .procname       = "tx_ccid",
  40                 .data           = &dccp_feat_default_tx_ccid,
  41                 .maxlen         = sizeof(dccp_feat_default_tx_ccid),
  42                 .mode           = 0644,
  43                 .proc_handler   = proc_dointvec,
  44         },
  45         {
  46                 .ctl_name       = NET_DCCP_DEFAULT_ACK_RATIO,
  47                 .procname       = "ack_ratio",
  48                 .data           = &dccp_feat_default_ack_ratio,
  49                 .maxlen         = sizeof(dccp_feat_default_ack_ratio),
  50                 .mode           = 0644,
  51                 .proc_handler   = proc_dointvec,
  52         },
  53         {
  54                 .ctl_name       = NET_DCCP_DEFAULT_SEND_ACKVEC,
  55                 .procname       = "send_ackvec",
  56                 .data           = &dccp_feat_default_send_ack_vector,
  57                 .maxlen         = sizeof(dccp_feat_default_send_ack_vector),
  58                 .mode           = 0644,
  59                 .proc_handler   = proc_dointvec,
  60         },
  61         {
  62                 .ctl_name       = NET_DCCP_DEFAULT_SEND_NDP,
  63                 .procname       = "send_ndp",
  64                 .data           = &dccp_feat_default_send_ndp_count,
  65                 .maxlen         = sizeof(dccp_feat_default_send_ndp_count),
  66                 .mode           = 0644,
  67                 .proc_handler   = proc_dointvec,
  68         },
  69         { .ctl_name = 0, }
  70 };
  71
  72 static struct ctl_table dccp_table[] = {
  73         {
  74                 .ctl_name       = NET_DCCP_DEFAULT,
  75                 .procname       = "default",
  76                 .mode           = 0555,
  77                 .child          = dccp_default_table,
  78         },
  79         { .ctl_name = 0, },
  80 };
  81
  82 static struct ctl_table dccp_dir_table[] = {
  83         {
  84                 .ctl_name       = NET_DCCP,
  85                 .procname       = "dccp",
  86                 .mode           = 0555,
  87                 .child          = dccp_table,
  88         },
  89         { .ctl_name = 0, },
  90 };
  91
  92 static struct ctl_table dccp_root_table[] = {
  93         {
  94                 .ctl_name       = CTL_NET,
  95                 .procname       = "net",
  96                 .mode           = 0555,
  97                 .child          = dccp_dir_table,
  98         },
  99         { .ctl_name = 0, },
 100 };
 101
 102 static struct ctl_table_header *dccp_table_header;
 103
 104 int __init dccp_sysctl_init(void)
 105 {
 106         dccp_table_header = register_sysctl_table(dccp_root_table, 1);
 107
 108         return dccp_table_header != NULL ? 0 : -ENOMEM;
 109 }
 110
 111 void dccp_sysctl_exit(void)
 112 {
 113         if (dccp_table_header != NULL) {
 114                 unregister_sysctl_table(dccp_table_header);
 115                 dccp_table_header = NULL;
 116         }
 117 }