- Sysctl's move to seperate file

- moved away from ifn/ifa access to sctp_ifa/sctp_ifn
  built and managed by the add-ip code.
- cleaned up add-ip code to use the iterator
- made iterator be a thread, which enables auto-asconf now.
- rewrote and cleaned up source address selection (also
  made it use new structures).
- Fixed a couple of memory leaks.
- DACK now settable as to how many packets to delay as
  well as time.
- connectx() to latest socket API, new associd arg.
- Fixed issue with revoking and loosing potential to
  send when we inflate the flight size. We now inflate
  the cwnd too and deflate it later when the revoked
  chunk is sent or acked.
- Got rid of some temp debug code
- src addr selection moved to a common file (sctp_output.c)
- Support for simple VRF's (we have support for multi-vfr
  via compile switch that is scrubbed from BSD but we won't
  need multi-vrf until we first get VRF :-D)
- Rest of mib work for address information now done
- Limit number of addresses in INIT/INIT-ACK to
  a #def (30).

Reviewed by:	gnn

1 files changed, 581 insertions, 0 deletions

diff --git a/sys/netinet/sctp_sysctl.h b/sys/netinet/sctp_sysctl.h
new file mode 100644
index 0000000..fcd03fe
--- /dev/null
+++ b/sys/netinet/sctp_sysctl.h
@@ -0,0 +1,581 @@
+/*-
+ * Copyright (c) 2007, Cisco Systems, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * a) Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ *
+ * b) Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the distribution.
+ *
+ * c) Neither the name of Cisco Systems, Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#ifndef __sctp_sysctl_h__
+#define __sctp_sysctl_h__
+
+#include <netinet/sctp_os.h>
+#include <netinet/sctp_constants.h>
+
+/*
+ * limits for the sysctl variables
+ */
+/* maxdgram: Maximum outgoing SCTP buffer size */
+#define SCTPCTL_MAXDGRAM		1
+#define SCTPCTL_MAXDGRAM_DESC		"Maximum outgoing SCTP buffer size"
+#define SCTPCTL_MAXDGRAM_MIN		0
+#define SCTPCTL_MAXDGRAM_MAX		0xFFFFFFFF
+#define SCTPCTL_MAXDGRAM_DEFAULT	262144	/* 256k */
+
+/* recvspace: Maximum incoming SCTP buffer size */
+#define SCTPCTL_RECVSPACE		2
+#define SCTPCTL_RECVSPACE_DESC		"Maximum incoming SCTP buffer size"
+#define SCTPCTL_RECVSPACE_MIN		0
+#define SCTPCTL_RECVSPACE_MAX		0xFFFFFFFF
+#define SCTPCTL_RECVSPACE_DEFAULT	262144	/* 256k */
+
+/* autoasconf: Enable SCTP Auto-ASCONF */
+#define SCTPCTL_AUTOASCONF		3
+#define SCTPCTL_AUTOASCONF_DESC		"Enable SCTP Auto-ASCONF"
+#define SCTPCTL_AUTOASCONF_MIN		0
+#define SCTPCTL_AUTOASCONF_MAX		1
+#define SCTPCTL_AUTOASCONF_DEFAULT	SCTP_DEFAULT_AUTO_ASCONF
+
+/* ecn_enable: Enable SCTP ECN */
+#define SCTPCTL_ECN_ENABLE		4
+#define SCTPCTL_ECN_ENABLE_DESC		"Enable SCTP ECN"
+#define SCTPCTL_ECN_ENABLE_MIN		0
+#define SCTPCTL_ECN_ENABLE_MAX		1
+#define SCTPCTL_ECN_ENABLE_DEFAULT	1
+
+/* ecn_nonce: Enable SCTP ECN Nonce */
+#define SCTPCTL_ECN_NONCE		5
+#define SCTPCTL_ECN_NONCE_DESC		"Enable SCTP ECN Nonce"
+#define SCTPCTL_ECN_NONCE_MIN		0
+#define SCTPCTL_ECN_NONCE_MAX		1
+#define SCTPCTL_ECN_NONCE_DEFAULT	0
+
+/* strict_sacks: Enable SCTP Strict SACK checking */
+#define SCTPCTL_STRICT_SACKS		6
+#define SCTPCTL_STRICT_SACKS_DESC	"Enable SCTP Strict SACK checking"
+#define SCTPCTL_STRICT_SACKS_MIN	0
+#define SCTPCTL_STRICT_SACKS_MAX	1
+#define SCTPCTL_STRICT_SACKS_DEFAULT	0
+
+/* loopback_nocsum: Enable NO Csum on packets sent on loopback */
+#define SCTPCTL_LOOPBACK_NOCSUM		7
+#define SCTPCTL_LOOPBACK_NOCSUM_DESC	"Enable NO Csum on packets sent on loopback"
+#define SCTPCTL_LOOPBACK_NOCSUM_MIN	0
+#define SCTPCTL_LOOPBACK_NOCSUM_MAX	1
+#define SCTPCTL_LOOPBACK_NOCSUM_DEFAULT	1
+
+/* strict_init: Enable strict INIT/INIT-ACK singleton enforcement */
+#define SCTPCTL_STRICT_INIT		8
+#define SCTPCTL_STRICT_INIT_DESC	"Enable strict INIT/INIT-ACK singleton enforcement"
+#define SCTPCTL_STRICT_INIT_MIN		0
+#define SCTPCTL_STRICT_INIT_MAX		1
+#define SCTPCTL_STRICT_INIT_DEFAULT	1
+
+/* peer_chkoh: Amount to debit peers rwnd per chunk sent */
+#define SCTPCTL_PEER_CHKOH		9
+#define SCTPCTL_PEER_CHKOH_DESC		"Amount to debit peers rwnd per chunk sent"
+#define SCTPCTL_PEER_CHKOH_MIN		0
+#define SCTPCTL_PEER_CHKOH_MAX		0xFFFFFFFF
+#define SCTPCTL_PEER_CHKOH_DEFAULT	0	/* sizeof struct mbuf */
+
+/* maxburst: Default max burst for sctp endpoints */
+#define SCTPCTL_MAXBURST		10
+#define SCTPCTL_MAXBURST_DESC		"Default max burst for sctp endpoints"
+#define SCTPCTL_MAXBURST_MIN		1
+#define SCTPCTL_MAXBURST_MAX		0xFFFFFFFF
+#define SCTPCTL_MAXBURST_DEFAULT	SCTP_DEF_MAX_BURST
+
+/* maxchunks: Default max chunks on queue per asoc */
+#define SCTPCTL_MAXCHUNKS		11
+#define SCTPCTL_MAXCHUNKS_DESC		"Default max chunks on queue per asoc"
+#define SCTPCTL_MAXCHUNKS_MIN		0
+#define SCTPCTL_MAXCHUNKS_MAX		0xFFFFFFFF
+#define SCTPCTL_MAXCHUNKS_DEFAULT	SCTP_ASOC_MAX_CHUNKS_ON_QUEUE
+
+/* tcbhashsize: Tuneable for Hash table sizes */
+#define SCTPCTL_TCBHASHSIZE		12
+#define SCTPCTL_TCBHASHSIZE_DESC	"Tunable for TCB hash table sizes"
+#define SCTPCTL_TCBHASHSIZE_MIN		1
+#define SCTPCTL_TCBHASHSIZE_MAX		0xFFFFFFFF
+#define SCTPCTL_TCBHASHSIZE_DEFAULT	SCTP_TCBHASHSIZE
+
+/* pcbhashsize: Tuneable for PCB Hash table sizes */
+#define SCTPCTL_PCBHASHSIZE		13
+#define SCTPCTL_PCBHASHSIZE_DESC	"Tunable for PCB hash table sizes"
+#define SCTPCTL_PCBHASHSIZE_MIN		1
+#define SCTPCTL_PCBHASHSIZE_MAX		0xFFFFFFFF
+#define SCTPCTL_PCBHASHSIZE_DEFAULT	SCTP_PCBHASHSIZE
+
+/* min_split_point: Minimum size when splitting a chunk */
+#define SCTPCTL_MIN_SPLIT_POINT		14
+#define SCTPCTL_MIN_SPLIT_POINT_DESC	"Minimum size when splitting a chunk"
+#define SCTPCTL_MIN_SPLIT_POINT_MIN	0
+#define SCTPCTL_MIN_SPLIT_POINT_MAX	0xFFFFFFFF
+#define SCTPCTL_MIN_SPLIT_POINT_DEFAULT	SCTP_DEFAULT_SPLIT_POINT_MIN
+
+/* chunkscale: Tuneable for Scaling of number of chunks and messages */
+#define SCTPCTL_CHUNKSCALE		15
+#define SCTPCTL_CHUNKSCALE_DESC		"Tuneable for Scaling of number of chunks and messages"
+#define SCTPCTL_CHUNKSCALE_MIN		1
+#define SCTPCTL_CHUNKSCALE_MAX		0xFFFFFFFF
+#define SCTPCTL_CHUNKSCALE_DEFAULT	SCTP_CHUNKQUEUE_SCALE
+
+/* delayed_sack_time: Default delayed SACK timer in msec */
+#define SCTPCTL_DELAYED_SACK_TIME	16
+#define SCTPCTL_DELAYED_SACK_TIME_DESC	"Default delayed SACK timer in msec"
+#define SCTPCTL_DELAYED_SACK_TIME_MIN	0
+#define SCTPCTL_DELAYED_SACK_TIME_MAX	0xFFFFFFFF
+#define SCTPCTL_DELAYED_SACK_TIME_DEFAULT	SCTP_RECV_MSEC
+
+/* sack_freq: Default SACK frequency */
+#define SCTPCTL_SACK_FREQ		17
+#define SCTPCTL_SACK_FREQ_DESC		"Default SACK frequency"
+#define SCTPCTL_SACK_FREQ_MIN		0
+#define SCTPCTL_SACK_FREQ_MAX		0xFFFFFFFF
+#define SCTPCTL_SACK_FREQ_DEFAULT	SCTP_DEFAULT_SACK_FREQ
+
+/* sys_resource: Max number of cached resources in the system */
+#define SCTPCTL_SYS_RESOURCE		18
+#define SCTPCTL_SYS_RESOURCE_DESC	"Max number of cached resources in the system"
+#define SCTPCTL_SYS_RESOURCE_MIN	0
+#define SCTPCTL_SYS_RESOURCE_MAX	0xFFFFFFFF
+#define SCTPCTL_SYS_RESOURCE_DEFAULT	SCTP_DEF_SYSTEM_RESC_LIMIT
+
+/* asoc_resource: Max number of cached resources in an asoc */
+#define SCTPCTL_ASOC_RESOURCE		19
+#define SCTPCTL_ASOC_RESOURCE_DESC	"Max number of cached resources in an asoc"
+#define SCTPCTL_ASOC_RESOURCE_MIN	0
+#define SCTPCTL_ASOC_RESOURCE_MAX	0xFFFFFFFF
+#define SCTPCTL_ASOC_RESOURCE_DEFAULT	SCTP_DEF_ASOC_RESC_LIMIT
+
+/* heartbeat_interval: Default heartbeat interval in msec */
+#define SCTPCTL_HEARTBEAT_INTERVAL	20
+#define SCTPCTL_HEARTBEAT_INTERVAL_DESC	"Default heartbeat interval in msec"
+#define SCTPCTL_HEARTBEAT_INTERVAL_MIN	0
+#define SCTPCTL_HEARTBEAT_INTERVAL_MAX	0xFFFFFFFF
+#define SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT	SCTP_HB_DEFAULT_MSEC
+
+/* pmtu_raise_time: Default PMTU raise timer in sec */
+#define SCTPCTL_PMTU_RAISE_TIME		21
+#define SCTPCTL_PMTU_RAISE_TIME_DESC	"Default PMTU raise timer in sec"
+#define SCTPCTL_PMTU_RAISE_TIME_MIN	0
+#define SCTPCTL_PMTU_RAISE_TIME_MAX	0xFFFFFFFF
+#define SCTPCTL_PMTU_RAISE_TIME_DEFAULT	SCTP_DEF_PMTU_RAISE_SEC
+
+/* shutdown_guard_time: Default shutdown guard timer in sec */
+#define SCTPCTL_SHUTDOWN_GUARD_TIME		22
+#define SCTPCTL_SHUTDOWN_GUARD_TIME_DESC	"Default shutdown guard timer in sec"
+#define SCTPCTL_SHUTDOWN_GUARD_TIME_MIN		0
+#define SCTPCTL_SHUTDOWN_GUARD_TIME_MAX		0xFFFFFFFF
+#define SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT	SCTP_DEF_MAX_SHUTDOWN_SEC
+
+/* secret_lifetime: Default secret lifetime in sec */
+#define SCTPCTL_SECRET_LIFETIME		23
+#define SCTPCTL_SECRET_LIFETIME_DESC	"Default secret lifetime in sec"
+#define SCTPCTL_SECRET_LIFETIME_MIN	0
+#define SCTPCTL_SECRET_LIFETIME_MAX	0xFFFFFFFF
+#define SCTPCTL_SECRET_LIFETIME_DEFAULT	SCTP_DEFAULT_SECRET_LIFE_SEC
+
+/* rto_max: Default maximum retransmission timeout in msec */
+#define SCTPCTL_RTO_MAX			24
+#define SCTPCTL_RTO_MAX_DESC		"Default maximum retransmission timeout in msec"
+#define SCTPCTL_RTO_MAX_MIN		0
+#define SCTPCTL_RTO_MAX_MAX		0xFFFFFFFF
+#define SCTPCTL_RTO_MAX_DEFAULT		SCTP_RTO_UPPER_BOUND
+
+/* rto_min: Default minimum retransmission timeout in msec */
+#define SCTPCTL_RTO_MIN			25
+#define SCTPCTL_RTO_MIN_DESC		"Default minimum retransmission timeout in msec"
+#define SCTPCTL_RTO_MIN_MIN		0
+#define SCTPCTL_RTO_MIN_MAX		0xFFFFFFFF
+#define SCTPCTL_RTO_MIN_DEFAULT		SCTP_RTO_LOWER_BOUND
+
+/* rto_initial: Default initial retransmission timeout in msec */
+#define SCTPCTL_RTO_INITIAL		26
+#define SCTPCTL_RTO_INITIAL_DESC	"Default initial retransmission timeout in msec"
+#define SCTPCTL_RTO_INITIAL_MIN		0
+#define SCTPCTL_RTO_INITIAL_MAX		0xFFFFFFFF
+#define SCTPCTL_RTO_INITIAL_DEFAULT	SCTP_RTO_INITIAL
+
+/* init_rto_max: Default maximum retransmission timeout during association setup in msec */
+#define SCTPCTL_INIT_RTO_MAX		27
+#define SCTPCTL_INIT_RTO_MAX_DESC	"Default maximum retransmission timeout during association setup in msec"
+#define SCTPCTL_INIT_RTO_MAX_MIN	0
+#define SCTPCTL_INIT_RTO_MAX_MAX	0xFFFFFFFF
+#define SCTPCTL_INIT_RTO_MAX_DEFAULT	SCTP_RTO_UPPER_BOUND
+
+/* valid_cookie_life: Default cookie lifetime in sec */
+#define SCTPCTL_VALID_COOKIE_LIFE	28
+#define SCTPCTL_VALID_COOKIE_LIFE_DESC	"Default cookie lifetime in sec"
+#define SCTPCTL_VALID_COOKIE_LIFE_MIN	0
+#define SCTPCTL_VALID_COOKIE_LIFE_MAX	0xFFFFFFFF
+#define SCTPCTL_VALID_COOKIE_LIFE_DEFAULT	SCTP_DEFAULT_COOKIE_LIFE
+
+/* init_rtx_max: Default maximum number of retransmission for INIT chunks */
+#define SCTPCTL_INIT_RTX_MAX		29
+#define SCTPCTL_INIT_RTX_MAX_DESC	"Default maximum number of retransmission for INIT chunks"
+#define SCTPCTL_INIT_RTX_MAX_MIN	0
+#define SCTPCTL_INIT_RTX_MAX_MAX	0xFFFFFFFF
+#define SCTPCTL_INIT_RTX_MAX_DEFAULT	SCTP_DEF_MAX_INIT
+
+/* assoc_rtx_max: Default maximum number of retransmissions per association */
+#define SCTPCTL_ASSOC_RTX_MAX		30
+#define SCTPCTL_ASSOC_RTX_MAX_DESC	"Default maximum number of retransmissions per association"
+#define SCTPCTL_ASSOC_RTX_MAX_MIN	0
+#define SCTPCTL_ASSOC_RTX_MAX_MAX	0xFFFFFFFF
+#define SCTPCTL_ASSOC_RTX_MAX_DEFAULT	SCTP_DEF_MAX_SEND
+
+/* path_rtx_max: Default maximum of retransmissions per path */
+#define SCTPCTL_PATH_RTX_MAX		31
+#define SCTPCTL_PATH_RTX_MAX_DESC	"Default maximum of retransmissions per path"
+#define SCTPCTL_PATH_RTX_MAX_MIN	0
+#define SCTPCTL_PATH_RTX_MAX_MAX	0xFFFFFFFF
+#define SCTPCTL_PATH_RTX_MAX_DEFAULT	SCTP_DEF_MAX_PATH_RTX
+
+/* add_more_on_output: When space wise is it worthwhile to try to add more to a socket send buffer */
+#define SCTPCTL_ADD_MORE_ON_OUTPUT	32
+#define SCTPCTL_ADD_MORE_ON_OUTPUT_DESC	"When space wise is it worthwhile to try to add more to a socket send buffer"
+#define SCTPCTL_ADD_MORE_ON_OUTPUT_MIN	0
+#define SCTPCTL_ADD_MORE_ON_OUTPUT_MAX	0xFFFFFFFF
+#define SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT SCTP_DEFAULT_ADD_MORE
+
+/* outgoing_streams: Default number of outgoing streams */
+#define SCTPCTL_OUTGOING_STREAMS	33
+#define SCTPCTL_OUTGOING_STREAMS_DESC	"Default number of outgoing streams"
+#define SCTPCTL_OUTGOING_STREAMS_MIN	1
+#define SCTPCTL_OUTGOING_STREAMS_MAX	65535
+#define SCTPCTL_OUTGOING_STREAMS_DEFAULT SCTP_OSTREAM_INITIAL
+
+/* cmt_on_off: CMT on/off flag */
+#define SCTPCTL_CMT_ON_OFF		34
+#define SCTPCTL_CMT_ON_OFF_DESC		"CMT on/off flag"
+#define SCTPCTL_CMT_ON_OFF_MIN		0
+#define SCTPCTL_CMT_ON_OFF_MAX		1
+#define SCTPCTL_CMT_ON_OFF_DEFAULT	0
+
+/* cwnd_maxburst: Use a CWND adjusting maxburst */
+#define SCTPCTL_CWND_MAXBURST		35
+#define SCTPCTL_CWND_MAXBURST_DESC	"Use a CWND adjusting maxburst"
+#define SCTPCTL_CWND_MAXBURST_MIN	0
+#define SCTPCTL_CWND_MAXBURST_MAX	1
+#define SCTPCTL_CWND_MAXBURST_DEFAULT	1
+
+/* early_fast_retran: Early Fast Retransmit with timer */
+#define SCTPCTL_EARLY_FAST_RETRAN	36
+#define SCTPCTL_EARLY_FAST_RETRAN_DESC	"Early Fast Retransmit with timer"
+#define SCTPCTL_EARLY_FAST_RETRAN_MIN	0
+#define SCTPCTL_EARLY_FAST_RETRAN_MAX	0xFFFFFFFF
+#define SCTPCTL_EARLY_FAST_RETRAN_DEFAULT	0
+
+/* use_rttvar_congctrl: Use Congestion Control via rtt variation */
+#define SCTPCTL_USE_RTTVAR_CONGCTRL		37
+#define SCTPCTL_USE_RTTVAR_CONGCTRL_DESC	"Use Congestion Control via rtt variation"
+#define SCTPCTL_USE_RTTVAR_CONGCTRL_MIN		0
+#define SCTPCTL_USE_RTTVAR_CONGCTRL_MAX		1
+#define SCTPCTL_USE_RTTVAR_CONGCTRL_DEFAULT	0	/* UNUSED?? */
+
+/* deadlock_detect: SMP Deadlock detection on/off */
+#define SCTPCTL_DEADLOCK_DETECT		38
+#define SCTPCTL_DEADLOCK_DETECT_DESC	"SMP Deadlock detection on/off"
+#define SCTPCTL_DEADLOCK_DETECT_MIN	0
+#define SCTPCTL_DEADLOCK_DETECT_MAX	1
+#define SCTPCTL_DEADLOCK_DETECT_DEFAULT	0
+
+/* early_fast_retran_msec: Early Fast Retransmit minimum timer value */
+#define SCTPCTL_EARLY_FAST_RETRAN_MSEC		39
+#define SCTPCTL_EARLY_FAST_RETRAN_MSEC_DESC	"Early Fast Retransmit minimum timer value"
+#define SCTPCTL_EARLY_FAST_RETRAN_MSEC_MIN	0
+#define SCTPCTL_EARLY_FAST_RETRAN_MSEC_MAX	0xFFFFFFFF
+#define SCTPCTL_EARLY_FAST_RETRAN_MSEC_DEFAULT	SCTP_MINFR_MSEC_TIMER
+
+/* asconf_auth_nochk: Disable SCTP ASCONF AUTH requirement */
+#define SCTPCTL_ASCONF_AUTH_NOCHK	40
+#define SCTPCTL_ASCONF_AUTH_NOCHK_DESC	"Disable SCTP ASCONF AUTH requirement"
+#define SCTPCTL_ASCONF_AUTH_NOCHK_MIN	0
+#define SCTPCTL_ASCONF_AUTH_NOCHK_MAX	1
+#define SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT	0
+
+/* auth_disable: Disable SCTP AUTH function */
+#define SCTPCTL_AUTH_DISABLE		41
+#define SCTPCTL_AUTH_DISABLE_DESC	"Disable SCTP AUTH function"
+#define SCTPCTL_AUTH_DISABLE_MIN	0
+#define SCTPCTL_AUTH_DISABLE_MAX	1
+#define SCTPCTL_AUTH_DISABLE_DEFAULT	0
+
+/* nat_friendly: SCTP NAT friendly operation */
+#define SCTPCTL_NAT_FRIENDLY		42
+#define SCTPCTL_NAT_FRIENDLY_DESC	"SCTP NAT friendly operation"
+#define SCTPCTL_NAT_FRIENDLY_MIN	0
+#define SCTPCTL_NAT_FRIENDLY_MAX	1
+#define SCTPCTL_NAT_FRIENDLY_DEFAULT	1
+
+/* abc_l_var: SCTP ABC max increase per SACK (L) */
+#define SCTPCTL_ABC_L_VAR		43
+#define SCTPCTL_ABC_L_VAR_DESC		"SCTP ABC max increase per SACK (L)"
+#define SCTPCTL_ABC_L_VAR_MIN		0
+#define SCTPCTL_ABC_L_VAR_MAX		0xFFFFFFFF
+#define SCTPCTL_ABC_L_VAR_DEFAULT	1
+
+/* max_chained_mbufs: Default max number of small mbufs on a chain */
+#define SCTPCTL_MAX_CHAINED_MBUFS	44
+#define SCTPCTL_MAX_CHAINED_MBUFS_DESC	"Default max number of small mbufs on a chain"
+#define SCTPCTL_MAX_CHAINED_MBUFS_MIN	0
+#define SCTPCTL_MAX_CHAINED_MBUFS_MAX	0xFFFFFFFF
+#define SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT	SCTP_DEFAULT_MBUFS_IN_CHAIN
+
+/* cmt_use_dac: CMT DAC on/off flag */
+#define SCTPCTL_CMT_USE_DAC		45
+#define SCTPCTL_CMT_USE_DAC_DESC	"CMT DAC on/off flag"
+#define SCTPCTL_CMT_USE_DAC_MIN		0
+#define SCTPCTL_CMT_USE_DAC_MAX		1
+#define SCTPCTL_CMT_USE_DAC_DEFAULT    	0
+
+/* do_sctp_drain: Should SCTP respond to the drain calls */
+#define SCTPCTL_DO_SCTP_DRAIN		46
+#define SCTPCTL_DO_SCTP_DRAIN_DESC	"Should SCTP respond to the drain calls"
+#define SCTPCTL_DO_SCTP_DRAIN_MIN	0
+#define SCTPCTL_DO_SCTP_DRAIN_MAX	1
+#define SCTPCTL_DO_SCTP_DRAIN_DEFAULT	1
+
+/* hb_max_burst: Confirmation Heartbeat max burst? */
+#define SCTPCTL_HB_MAX_BURST		47
+#define SCTPCTL_HB_MAX_BURST_DESC	"Confirmation Heartbeat max burst?"
+#define SCTPCTL_HB_MAX_BURST_MIN	1
+#define SCTPCTL_HB_MAX_BURST_MAX	0xFFFFFFFF
+#define SCTPCTL_HB_MAX_BURST_DEFAULT	SCTP_DEF_MAX_BURST
+
+/* abort_at_limit: When one-2-one hits qlimit abort */
+#define SCTPCTL_ABORT_AT_LIMIT		48
+#define SCTPCTL_ABORT_AT_LIMIT_DESC	"When one-2-one hits qlimit abort"
+#define SCTPCTL_ABORT_AT_LIMIT_MIN	0
+#define SCTPCTL_ABORT_AT_LIMIT_MAX	1
+#define SCTPCTL_ABORT_AT_LIMIT_DEFAULT	0
+
+/* strict_data_order: Enforce strict data ordering, abort if control inside data */
+#define SCTPCTL_STRICT_DATA_ORDER	49
+#define SCTPCTL_STRICT_DATA_ORDER_DESC	"Enforce strict data ordering, abort if control inside data"
+#define SCTPCTL_STRICT_DATA_ORDER_MIN	0
+#define SCTPCTL_STRICT_DATA_ORDER_MAX	1
+#define SCTPCTL_STRICT_DATA_ORDER_DEFAULT	0
+
+/* debug: Configure debug output */
+#define SCTPCTL_DEBUG		50
+#define SCTPCTL_DEBUG_DESC	"Configure debug output"
+#define SCTPCTL_DEBUG_MIN	0
+#define SCTPCTL_DEBUG_MAX	0xFFFFFFFF
+#define SCTPCTL_DEBUG_DEFAULT	0
+
+#ifdef SCTP_DEBUG
+#define SCTPCTL_MAXID		    50
+#else
+#define SCTPCTL_MAXID		    49
+#endif
+
+/*
+ * Names for SCTP sysctl objects variables.
+ * Must match the OIDs above.
+ */
+#ifdef SCTP_DEBUG
+#define SCTPCTL_NAMES { \
+	{ 0, 0 }, \
+	{ "sendspace", CTLTYPE_INT }, \
+	{ "recvspace", CTLTYPE_INT }, \
+	{ "autoasconf", CTLTYPE_INT }, \
+	{ "ecn_enable", CTLTYPE_INT }, \
+	{ "ecn_nonce", CTLTYPE_INT }, \
+	{ "strict_sack", CTLTYPE_INT }, \
+	{ "looback_nocsum", CTLTYPE_INT }, \
+	{ "strict_init", CTLTYPE_INT }, \
+	{ "peer_chkoh", CTLTYPE_INT }, \
+	{ "maxburst", CTLTYPE_INT }, \
+	{ "maxchunks", CTLTYPE_INT }, \
+	{ "delayed_sack_time", CTLTYPE_INT }, \
+	{ "sack_freq", CTLTYPE_INT }, \
+	{ "heartbeat_interval", CTLTYPE_INT }, \
+	{ "pmtu_raise_time", CTLTYPE_INT }, \
+	{ "shutdown_guard_time", CTLTYPE_INT }, \
+	{ "secret_lifetime", CTLTYPE_INT }, \
+	{ "rto_max", CTLTYPE_INT }, \
+	{ "rto_min", CTLTYPE_INT }, \
+	{ "rto_initial", CTLTYPE_INT }, \
+	{ "init_rto_max", CTLTYPE_INT }, \
+	{ "valid_cookie_life", CTLTYPE_INT }, \
+	{ "init_rtx_max", CTLTYPE_INT }, \
+	{ "assoc_rtx_max", CTLTYPE_INT }, \
+	{ "path_rtx_max", CTLTYPE_INT }, \
+	{ "outgoing_streams", CTLTYPE_INT }, \
+	{ "cmt_on_off", CTLTYPE_INT }, \
+	{ "cwnd_maxburst", CTLTYPE_INT }, \
+	{ "early_fast_retran", CTLTYPE_INT }, \
+	{ "use_rttvar_congctrl", CTLTYPE_INT }, \
+	{ "deadlock_detect", CTLTYPE_INT }, \
+	{ "early_fast_retran_msec", CTLTYPE_INT }, \
+	{ "asconf_auth_nochk", CTLTYPE_INT }, \
+	{ "auth_disable", CTLTYPE_INT }, \
+	{ "nat_friendly", CTLTYPE_INT }, \
+	{ "abc_l_var", CTLTYPE_INT }, \
+	{ "max_mbuf_chain", CTLTYPE_INT }, \
+	{ "cmt_use_dac", CTLTYPE_INT }, \
+	{ "do_sctp_drain", CTLTYPE_INT }, \
+	{ "warm_crc_table", CTLTYPE_INT }, \
+	{ "abort_at_limit", CTLTYPE_INT }, \
+	{ "strict_data_order", CTLTYPE_INT }, \
+	{ "tcbhashsize", CTLTYPE_INT }, \
+	{ "pcbhashsize", CTLTYPE_INT }, \
+	{ "chunkscale", CTLTYPE_INT }, \
+	{ "min_split_point", CTLTYPE_INT }, \
+	{ "add_more_on_output", CTLTYPE_INT }, \
+	{ "sys_resource", CTLTYPE_INT }, \
+	{ "asoc_resource", CTLTYPE_INT }, \
+	{ "debug", CTLTYPE_INT }, \
+}
+#else
+#define SCTPCTL_NAMES { \
+	{ 0, 0 }, \
+	{ "sendspace", CTLTYPE_INT }, \
+	{ "recvspace", CTLTYPE_INT }, \
+	{ "autoasconf", CTLTYPE_INT }, \
+	{ "ecn_enable", CTLTYPE_INT }, \
+	{ "ecn_nonce", CTLTYPE_INT }, \
+	{ "strict_sack", CTLTYPE_INT }, \
+	{ "looback_nocsum", CTLTYPE_INT }, \
+	{ "strict_init", CTLTYPE_INT }, \
+	{ "peer_chkoh", CTLTYPE_INT }, \
+	{ "maxburst", CTLTYPE_INT }, \
+	{ "maxchunks", CTLTYPE_INT }, \
+	{ "delayed_sack_time", CTLTYPE_INT }, \
+	{ "sack_freq", CTLTYPE_INT }, \
+	{ "heartbeat_interval", CTLTYPE_INT }, \
+	{ "pmtu_raise_time", CTLTYPE_INT }, \
+	{ "shutdown_guard_time", CTLTYPE_INT }, \
+	{ "secret_lifetime", CTLTYPE_INT }, \
+	{ "rto_max", CTLTYPE_INT }, \
+	{ "rto_min", CTLTYPE_INT }, \
+	{ "rto_initial", CTLTYPE_INT }, \
+	{ "init_rto_max", CTLTYPE_INT }, \
+	{ "valid_cookie_life", CTLTYPE_INT }, \
+	{ "init_rtx_max", CTLTYPE_INT }, \
+	{ "assoc_rtx_max", CTLTYPE_INT }, \
+	{ "path_rtx_max", CTLTYPE_INT }, \
+	{ "outgoing_streams", CTLTYPE_INT }, \
+	{ "cmt_on_off", CTLTYPE_INT }, \
+	{ "cwnd_maxburst", CTLTYPE_INT }, \
+	{ "early_fast_retran", CTLTYPE_INT }, \
+	{ "use_rttvar_congctrl", CTLTYPE_INT }, \
+	{ "deadlock_detect", CTLTYPE_INT }, \
+	{ "early_fast_retran_msec", CTLTYPE_INT }, \
+	{ "asconf_auth_nochk", CTLTYPE_INT }, \
+	{ "auth_disable", CTLTYPE_INT }, \
+	{ "nat_friendly", CTLTYPE_INT }, \
+	{ "abc_l_var", CTLTYPE_INT }, \
+	{ "max_mbuf_chain", CTLTYPE_INT }, \
+	{ "cmt_use_dac", CTLTYPE_INT }, \
+	{ "do_sctp_drain", CTLTYPE_INT }, \
+	{ "warm_crc_table", CTLTYPE_INT }, \
+	{ "abort_at_limit", CTLTYPE_INT }, \
+	{ "strict_data_order", CTLTYPE_INT }, \
+	{ "tcbhashsize", CTLTYPE_INT }, \
+	{ "pcbhashsize", CTLTYPE_INT }, \
+	{ "chunkscale", CTLTYPE_INT }, \
+	{ "min_split_point", CTLTYPE_INT }, \
+	{ "add_more_on_output", CTLTYPE_INT }, \
+	{ "sys_resource", CTLTYPE_INT }, \
+	{ "asoc_resource", CTLTYPE_INT }, \
+}
+#endif
+
+
+#if defined(_KERNEL)
+
+/*
+ * variable definitions
+ */
+extern uint32_t sctp_sendspace;
+extern uint32_t sctp_recvspace;
+extern uint32_t sctp_auto_asconf;
+extern uint32_t sctp_ecn_enable;
+extern uint32_t sctp_ecn_nonce;
+extern uint32_t sctp_strict_sacks;
+extern uint32_t sctp_no_csum_on_loopback;
+extern uint32_t sctp_strict_init;
+extern uint32_t sctp_peer_chunk_oh;
+extern uint32_t sctp_max_burst_default;
+extern uint32_t sctp_max_chunks_on_queue;
+extern uint32_t sctp_hashtblsize;
+extern uint32_t sctp_pcbtblsize;
+extern uint32_t sctp_min_split_point;
+extern uint32_t sctp_chunkscale;
+extern uint32_t sctp_delayed_sack_time_default;
+extern uint32_t sctp_sack_freq_default;
+extern uint32_t sctp_system_free_resc_limit;
+extern uint32_t sctp_asoc_free_resc_limit;
+extern uint32_t sctp_heartbeat_interval_default;
+extern uint32_t sctp_pmtu_raise_time_default;
+extern uint32_t sctp_shutdown_guard_time_default;
+extern uint32_t sctp_secret_lifetime_default;
+extern uint32_t sctp_rto_max_default;
+extern uint32_t sctp_rto_min_default;
+extern uint32_t sctp_rto_initial_default;
+extern uint32_t sctp_init_rto_max_default;
+extern uint32_t sctp_valid_cookie_life_default;
+extern uint32_t sctp_init_rtx_max_default;
+extern uint32_t sctp_assoc_rtx_max_default;
+extern uint32_t sctp_path_rtx_max_default;
+extern uint32_t sctp_add_more_threshold;
+extern uint32_t sctp_nr_outgoing_streams_default;
+extern uint32_t sctp_cmt_on_off;
+extern uint32_t sctp_use_cwnd_based_maxburst;
+extern uint32_t sctp_early_fr;
+extern uint32_t sctp_use_rttvar_cc;
+extern uint32_t sctp_says_check_for_deadlock;
+extern uint32_t sctp_early_fr_msec;
+extern uint32_t sctp_asconf_auth_nochk;
+extern uint32_t sctp_auth_disable;
+extern uint32_t sctp_nat_friendly;
+extern uint32_t sctp_L2_abc_variable;
+extern uint32_t sctp_mbuf_threshold_count;
+extern uint32_t sctp_cmt_use_dac;
+extern uint32_t sctp_do_drain;
+extern uint32_t sctp_hb_maxburst;
+extern uint32_t sctp_abort_if_one_2_one_hits_limit;
+extern uint32_t sctp_strict_data_order;
+
+#if defined(SCTP_DEBUG)
+extern uint32_t sctp_debug_on;
+
+#endif
+
+extern struct sctpstat sctpstat;
+
+
+#ifdef SYSCTL_DECL
+SYSCTL_DECL(_net_inet_sctp);
+#endif
+
+#endif				/* _KERNEL */
+#endif				/* __sctp_sysctl_h__ */