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/config.h>
  13 #include <linux/mm.h>
  14 #include <linux/sysctl.h>
  15
  16 #ifndef CONFIG_SYSCTL
  17 #error This file should not be compiled without CONFIG_SYSCTL defined
  18 #endif
  19
  20 extern int dccp_feat_default_sequence_window;
  21 extern int dccp_feat_default_rx_ccid;
  22 extern int dccp_feat_default_tx_ccid;
  23 extern int dccp_feat_default_ack_ratio;
  24 extern int dccp_feat_default_send_ack_vector;
  25 extern int dccp_feat_default_send_ndp_count;
  26
  27 static struct ctl_table dccp_default_table[] = {
  28         {
  29                 .ctl_name       = NET_DCCP_DEFAULT_SEQ_WINDOW,
  30                 .procname       = "seq_window",
  31                 .data           = &dccp_feat_default_sequence_window,
  32                 .maxlen         = sizeof(dccp_feat_default_sequence_window),
  33                 .mode           = 0644,
  34                 .proc_handler   = proc_dointvec,
  35         },
  36         {
  37                 .ctl_name       = NET_DCCP_DEFAULT_RX_CCID,
  38                 .procname       = "rx_ccid",
  39                 .data           = &dccp_feat_default_rx_ccid,
  40                 .maxlen         = sizeof(dccp_feat_default_rx_ccid),
  41                 .mode           = 0644,
  42                 .proc_handler   = proc_dointvec,
  43         },
  44         {
  45                 .ctl_name       = NET_DCCP_DEFAULT_TX_CCID,
  46                 .procname       = "tx_ccid",
  47                 .data           = &dccp_feat_default_tx_ccid,
  48                 .maxlen         = sizeof(dccp_feat_default_tx_ccid),
  49                 .mode           = 0644,
  50                 .proc_handler   = proc_dointvec,
  51         },
  52         {
  53                 .ctl_name       = NET_DCCP_DEFAULT_ACK_RATIO,
  54                 .procname       = "ack_ratio",
  55                 .data           = &dccp_feat_default_ack_ratio,
  56                 .maxlen         = sizeof(dccp_feat_default_ack_ratio),
  57                 .mode           = 0644,
  58                 .proc_handler   = proc_dointvec,
  59         },
  60         {
  61                 .ctl_name       = NET_DCCP_DEFAULT_SEND_ACKVEC,
  62                 .procname       = "send_ackvec",
  63                 .data           = &dccp_feat_default_send_ack_vector,
  64                 .maxlen         = sizeof(dccp_feat_default_send_ack_vector),
  65                 .mode           = 0644,
  66                 .proc_handler   = proc_dointvec,
  67         },
  68         {
  69                 .ctl_name       = NET_DCCP_DEFAULT_SEND_NDP,
  70                 .procname       = "send_ndp",
  71                 .data           = &dccp_feat_default_send_ndp_count,
  72                 .maxlen         = sizeof(dccp_feat_default_send_ndp_count),
  73                 .mode           = 0644,
  74                 .proc_handler   = proc_dointvec,
  75         },
  76         { .ctl_name = 0, }
  77 };
  78
  79 static struct ctl_table dccp_table[] = {
  80         {
  81                 .ctl_name       = NET_DCCP_DEFAULT,
  82                 .procname       = "default",
  83                 .mode           = 0555,
  84                 .child          = dccp_default_table,
  85         },
  86         { .ctl_name = 0, },
  87 };
  88
  89 static struct ctl_table dccp_dir_table[] = {
  90         {
  91                 .ctl_name       = NET_DCCP,
  92                 .procname       = "dccp",
  93                 .mode           = 0555,
  94                 .child          = dccp_table,
  95         },
  96         { .ctl_name = 0, },
  97 };
  98
  99 static struct ctl_table dccp_root_table[] = {
 100         {
 101                 .ctl_name       = CTL_NET,
 102                 .procname       = "net",
 103                 .mode           = 0555,
 104                 .child          = dccp_dir_table,
 105         },
 106         { .ctl_name = 0, },
 107 };
 108
 109 static struct ctl_table_header *dccp_table_header;
 110
 111 int __init dccp_sysctl_init(void)
 112 {
 113         dccp_table_header = register_sysctl_table(dccp_root_table, 1);
 114
 115         return dccp_table_header != NULL ? 0 : -ENOMEM;
 116 }
 117
 118 void dccp_sysctl_exit(void)
 119 {
 120         if (dccp_table_header != NULL) {
 121                 unregister_sysctl_table(dccp_table_header);
 122                 dccp_table_header = NULL;
 123         }
 124 }