Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / dccp / sysctl.c

diff --git a/kernel/net/dccp/sysctl.c b/kernel/net/dccp/sysctl.c
new file mode 100644 (file)
index 0000000..53731e4
--- /dev/null
+++ b/kernel/net/dccp/sysctl.c
@@ -0,0 +1,118 @@
+/*
+ *  net/dccp/sysctl.c
+ *
+ *  An implementation of the DCCP protocol
+ *  Arnaldo Carvalho de Melo <acme@mandriva.com>
+ *
+ *     This program is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License v2
+ *     as published by the Free Software Foundation.
+ */
+
+#include <linux/mm.h>
+#include <linux/sysctl.h>
+#include "dccp.h"
+#include "feat.h"
+
+#ifndef CONFIG_SYSCTL
+#error This file should not be compiled without CONFIG_SYSCTL defined
+#endif
+
+/* Boundary values */
+static int             zero     = 0,
+                       one      = 1,
+                       u8_max   = 0xFF;
+static unsigned long   seqw_min = DCCPF_SEQ_WMIN,
+                       seqw_max = 0xFFFFFFFF;          /* maximum on 32 bit */
+
+static struct ctl_table dccp_default_table[] = {
+       {
+               .procname       = "seq_window",
+               .data           = &sysctl_dccp_sequence_window,
+               .maxlen         = sizeof(sysctl_dccp_sequence_window),
+               .mode           = 0644,
+               .proc_handler   = proc_doulongvec_minmax,
+               .extra1         = &seqw_min,            /* RFC 4340, 7.5.2 */
+               .extra2         = &seqw_max,
+       },
+       {
+               .procname       = "rx_ccid",
+               .data           = &sysctl_dccp_rx_ccid,
+               .maxlen         = sizeof(sysctl_dccp_rx_ccid),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &u8_max,              /* RFC 4340, 10. */
+       },
+       {
+               .procname       = "tx_ccid",
+               .data           = &sysctl_dccp_tx_ccid,
+               .maxlen         = sizeof(sysctl_dccp_tx_ccid),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &u8_max,              /* RFC 4340, 10. */
+       },
+       {
+               .procname       = "request_retries",
+               .data           = &sysctl_dccp_request_retries,
+               .maxlen         = sizeof(sysctl_dccp_request_retries),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &one,
+               .extra2         = &u8_max,
+       },
+       {
+               .procname       = "retries1",
+               .data           = &sysctl_dccp_retries1,
+               .maxlen         = sizeof(sysctl_dccp_retries1),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &u8_max,
+       },
+       {
+               .procname       = "retries2",
+               .data           = &sysctl_dccp_retries2,
+               .maxlen         = sizeof(sysctl_dccp_retries2),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+               .extra2         = &u8_max,
+       },
+       {
+               .procname       = "tx_qlen",
+               .data           = &sysctl_dccp_tx_qlen,
+               .maxlen         = sizeof(sysctl_dccp_tx_qlen),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &zero,
+       },
+       {
+               .procname       = "sync_ratelimit",
+               .data           = &sysctl_dccp_sync_ratelimit,
+               .maxlen         = sizeof(sysctl_dccp_sync_ratelimit),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec_ms_jiffies,
+       },
+
+       { }
+};
+
+static struct ctl_table_header *dccp_table_header;
+
+int __init dccp_sysctl_init(void)
+{
+       dccp_table_header = register_net_sysctl(&init_net, "net/dccp/default",
+                       dccp_default_table);
+
+       return dccp_table_header != NULL ? 0 : -ENOMEM;
+}
+
+void dccp_sysctl_exit(void)
+{
+       if (dccp_table_header != NULL) {
+               unregister_net_sysctl_table(dccp_table_header);
+               dccp_table_header = NULL;
+       }
+}