net/dccp/sysctl.c

   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
  15 #ifndef CONFIG_SYSCTL
  16 #error This file should not be compiled without CONFIG_SYSCTL defined
  17 #endif
  18
  19 extern int dccp_feat_default_sequence_window;
  20 extern int dccp_feat_default_rx_ccid;
  21 extern int dccp_feat_default_tx_ccid;
  22 extern int dccp_feat_default_ack_ratio;
  23 extern int dccp_feat_default_send_ack_vector;
  24 extern int dccp_feat_default_send_ndp_count;
  25
  26 static struct ctl_table dccp_default_table[] = {
  27         {
  28                 .ctl_name       = NET_DCCP_DEFAULT_SEQ_WINDOW,
  29                 .procname       = "seq_window",
  30                 .data           = &dccp_feat_default_sequence_window,
  31                 .maxlen         = sizeof(dccp_feat_default_sequence_window),
  32                 .mode           = 0644,
  33                 .proc_handler   = proc_dointvec,
  34         },
  35         {
  36                 .ctl_name       = NET_DCCP_DEFAULT_RX_CCID,
  37                 .procname       = "rx_ccid",
  38                 .data           = &dccp_feat_default_rx_ccid,
  39                 .maxlen         = sizeof(dccp_feat_default_rx_ccid),
  40                 .mode           = 0644,
  41                 .proc_handler   = proc_dointvec,
  42         },
  43         {
  44                 .ctl_name       = NET_DCCP_DEFAULT_TX_CCID,
  45                 .procname       = "tx_ccid",
  46                 .data           = &dccp_feat_default_tx_ccid,
  47                 .maxlen         = sizeof(dccp_feat_default_tx_ccid),
  48                 .mode           = 0644,
  49                 .proc_handler   = proc_dointvec,
  50         },
  51         {
  52                 .ctl_name       = NET_DCCP_DEFAULT_ACK_RATIO,
  53                 .procname       = "ack_ratio",
  54                 .data           = &dccp_feat_default_ack_ratio,
  55                 .maxlen         = sizeof(dccp_feat_default_ack_ratio),
  56                 .mode           = 0644,
  57                 .proc_handler   = proc_dointvec,
  58         },
  59         {
  60                 .ctl_name       = NET_DCCP_DEFAULT_SEND_ACKVEC,
  61                 .procname       = "send_ackvec",
  62                 .data           = &dccp_feat_default_send_ack_vector,
  63                 .maxlen         = sizeof(dccp_feat_default_send_ack_vector),
  64                 .mode           = 0644,
  65                 .proc_handler   = proc_dointvec,
  66         },
  67         {
  68                 .ctl_name       = NET_DCCP_DEFAULT_SEND_NDP,
  69                 .procname       = "send_ndp",
  70                 .data           = &dccp_feat_default_send_ndp_count,
  71                 .maxlen         = sizeof(dccp_feat_default_send_ndp_count),
  72                 .mode           = 0644,
  73                 .proc_handler   = proc_dointvec,
  74         },
  75         { .ctl_name = 0, }
  76 };
  77
  78 static struct ctl_table dccp_table[] = {
  79         {
  80                 .ctl_name       = NET_DCCP_DEFAULT,
  81                 .procname       = "default",
  82                 .mode           = 0555,
  83                 .child          = dccp_default_table,
  84         },
  85         { .ctl_name = 0, },
  86 };
  87
  88 static struct ctl_table dccp_dir_table[] = {
  89         {
  90                 .ctl_name       = NET_DCCP,
  91                 .procname       = "dccp",
  92                 .mode           = 0555,
  93                 .child          = dccp_table,
  94         },
  95         { .ctl_name = 0, },
  96 };
  97
  98 static struct ctl_table dccp_root_table[] = {
  99         {
 100                 .ctl_name       = CTL_NET,
 101                 .procname       = "net",
 102                 .mode           = 0555,
 103                 .child          = dccp_dir_table,
 104         },
 105         { .ctl_name = 0, },
 106 };
 107
 108 static struct ctl_table_header *dccp_table_header;
 109
 110 int __init dccp_sysctl_init(void)
 111 {
 112         dccp_table_header = register_sysctl_table(dccp_root_table, 1);
 113
 114         return dccp_table_header != NULL ? 0 : -ENOMEM;
 115 }
 116
 117 void dccp_sysctl_exit(void)
 118 {
 119         if (dccp_table_header != NULL) {
 120                 unregister_sysctl_table(dccp_table_header);
 121                 dccp_table_header = NULL;
 122         }
 123 }