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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       = "send_ackvec",
  45                 .data           = &sysctl_dccp_feat_send_ack_vector,
  46                 .maxlen         = sizeof(sysctl_dccp_feat_send_ack_vector),
  47                 .mode           = 0644,
  48                 .proc_handler   = proc_dointvec,
  49         },
  50         {
  51                 .procname       = "send_ndp",
  52                 .data           = &sysctl_dccp_feat_send_ndp_count,
  53                 .maxlen         = sizeof(sysctl_dccp_feat_send_ndp_count),
  54                 .mode           = 0644,
  55                 .proc_handler   = proc_dointvec,
  56         },
  57         {
  58                 .procname       = "request_retries",
  59                 .data           = &sysctl_dccp_request_retries,
  60                 .maxlen         = sizeof(sysctl_dccp_request_retries),
  61                 .mode           = 0644,
  62                 .proc_handler   = proc_dointvec,
  63         },
  64         {
  65                 .procname       = "retries1",
  66                 .data           = &sysctl_dccp_retries1,
  67                 .maxlen         = sizeof(sysctl_dccp_retries1),
  68                 .mode           = 0644,
  69                 .proc_handler   = proc_dointvec,
  70         },
  71         {
  72                 .procname       = "retries2",
  73                 .data           = &sysctl_dccp_retries2,
  74                 .maxlen         = sizeof(sysctl_dccp_retries2),
  75                 .mode           = 0644,
  76                 .proc_handler   = proc_dointvec,
  77         },
  78         {
  79                 .procname       = "tx_qlen",
  80                 .data           = &sysctl_dccp_tx_qlen,
  81                 .maxlen         = sizeof(sysctl_dccp_tx_qlen),
  82                 .mode           = 0644,
  83                 .proc_handler   = proc_dointvec,
  84         },
  85         {
  86                 .procname       = "sync_ratelimit",
  87                 .data           = &sysctl_dccp_sync_ratelimit,
  88                 .maxlen         = sizeof(sysctl_dccp_sync_ratelimit),
  89                 .mode           = 0644,
  90                 .proc_handler   = proc_dointvec_ms_jiffies,
  91         },
  92
  93         { .ctl_name = 0, }
  94 };
  95
  96 static struct ctl_path dccp_path[] = {
  97         { .procname = "net", .ctl_name = CTL_NET, },
  98         { .procname = "dccp", .ctl_name = NET_DCCP, },
  99         { .procname = "default", .ctl_name = NET_DCCP_DEFAULT, },
 100         { }
 101 };
 102
 103 static struct ctl_table_header *dccp_table_header;
 104
 105 int __init dccp_sysctl_init(void)
 106 {
 107         dccp_table_header = register_sysctl_paths(dccp_path,
 108                         dccp_default_table);
 109
 110         return dccp_table_header != NULL ? 0 : -ENOMEM;
 111 }
 112
 113 void dccp_sysctl_exit(void)
 114 {
 115         if (dccp_table_header != NULL) {
 116                 unregister_sysctl_table(dccp_table_header);
 117                 dccp_table_header = NULL;
 118         }
 119 }