Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1147 insertions, 0 deletions

diff --git a/netwerk/sctp/src/netinet/sctp_os_userspace.h b/netwerk/sctp/src/netinet/sctp_os_userspace.h
new file mode 100644
index 0000000000..05f655aa94
--- /dev/null
+++ b/netwerk/sctp/src/netinet/sctp_os_userspace.h
@@ -0,0 +1,1147 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2011, by Michael Tuexen. All rights reserved.
+ * Copyright (c) 2008-2011, by Brad Penoff. 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.
+ */
+
+#ifndef __sctp_os_userspace_h__
+#define __sctp_os_userspace_h__
+/*
+ * Userspace includes
+ * All the opt_xxx.h files are placed in the kernel build directory.
+ * We will place them in userspace stack build directory.
+ */
+
+#include <errno.h>
+
+#if defined(_WIN32)
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <iphlpapi.h>
+#include <mswsock.h>
+#include <windows.h>
+#include "user_environment.h"
+typedef CRITICAL_SECTION userland_mutex_t;
+#if WINVER < 0x0600
+typedef CRITICAL_SECTION userland_rwlock_t;
+enum {
+	C_SIGNAL = 0,
+	C_BROADCAST = 1,
+	C_MAX_EVENTS = 2
+};
+typedef struct
+{
+	u_int waiters_count;
+	CRITICAL_SECTION waiters_count_lock;
+	HANDLE events_[C_MAX_EVENTS];
+} userland_cond_t;
+void InitializeXPConditionVariable(userland_cond_t *);
+void DeleteXPConditionVariable(userland_cond_t *);
+int SleepXPConditionVariable(userland_cond_t *, userland_mutex_t *);
+void WakeAllXPConditionVariable(userland_cond_t *);
+#define InitializeConditionVariable(cond) InitializeXPConditionVariable(cond)
+#define DeleteConditionVariable(cond) DeleteXPConditionVariable(cond)
+#define SleepConditionVariableCS(cond, mtx, time) SleepXPConditionVariable(cond, mtx)
+#define WakeAllConditionVariable(cond) WakeAllXPConditionVariable(cond)
+#else
+typedef SRWLOCK userland_rwlock_t;
+#define DeleteConditionVariable(cond)
+typedef CONDITION_VARIABLE userland_cond_t;
+#endif
+typedef HANDLE userland_thread_t;
+#define ADDRESS_FAMILY	unsigned __int8
+#define IPVERSION  4
+#define MAXTTL     255
+/* VS2010 comes with stdint.h */
+#if !defined(_MSC_VER) || (_MSC_VER >= 1600)
+#include <stdint.h>
+#else
+typedef unsigned __int64 uint64_t;
+typedef unsigned __int32 uint32_t;
+typedef __int32          int32_t;
+typedef unsigned __int16 uint16_t;
+typedef __int16          int16_t;
+typedef unsigned __int8  uint8_t;
+typedef __int8           int8_t;
+#endif
+#ifndef _SIZE_T_DEFINED
+#typedef __int32         size_t;
+#endif
+typedef unsigned __int32 u_int;
+typedef unsigned char    u_char;
+typedef unsigned __int16 u_short;
+typedef unsigned __int8  sa_family_t;
+#ifndef _SSIZE_T_DEFINED
+typedef __int64          ssize_t;
+#endif
+#if !defined(__MINGW32__)
+#define __func__	__FUNCTION__
+#endif
+#ifndef EWOULDBLOCK
+#define EWOULDBLOCK             WSAEWOULDBLOCK
+#endif
+#ifndef EINPROGRESS
+#define EINPROGRESS             WSAEINPROGRESS
+#endif
+#ifndef EALREADY
+#define EALREADY                WSAEALREADY
+#endif
+#ifndef ENOTSOCK
+#define ENOTSOCK                WSAENOTSOCK
+#endif
+#ifndef EDESTADDRREQ
+#define EDESTADDRREQ            WSAEDESTADDRREQ
+#endif
+#ifndef EMSGSIZE
+#define EMSGSIZE                WSAEMSGSIZE
+#endif
+#ifndef EPROTOTYPE
+#define EPROTOTYPE              WSAEPROTOTYPE
+#endif
+#ifndef ENOPROTOOPT
+#define ENOPROTOOPT             WSAENOPROTOOPT
+#endif
+#ifndef EPROTONOSUPPORT
+#define EPROTONOSUPPORT         WSAEPROTONOSUPPORT
+#endif
+#ifndef ESOCKTNOSUPPORT
+#define ESOCKTNOSUPPORT         WSAESOCKTNOSUPPORT
+#endif
+#ifndef EOPNOTSUPP
+#define EOPNOTSUPP              WSAEOPNOTSUPP
+#endif
+#ifndef ENOTSUP
+#define ENOTSUP                 WSAEOPNOTSUPP
+#endif
+#ifndef EPFNOSUPPORT
+#define EPFNOSUPPORT            WSAEPFNOSUPPORT
+#endif
+#ifndef EAFNOSUPPORT
+#define EAFNOSUPPORT            WSAEAFNOSUPPORT
+#endif
+#ifndef EADDRINUSE
+#define EADDRINUSE              WSAEADDRINUSE
+#endif
+#ifndef EADDRNOTAVAIL
+#define EADDRNOTAVAIL           WSAEADDRNOTAVAIL
+#endif
+#ifndef ENETDOWN
+#define ENETDOWN                WSAENETDOWN
+#endif
+#ifndef ENETUNREACH
+#define ENETUNREACH             WSAENETUNREACH
+#endif
+#ifndef ENETRESET
+#define ENETRESET               WSAENETRESET
+#endif
+#ifndef ECONNABORTED
+#define ECONNABORTED            WSAECONNABORTED
+#endif
+#ifndef ECONNRESET
+#define ECONNRESET              WSAECONNRESET
+#endif
+#ifndef ENOBUFS
+#define ENOBUFS                 WSAENOBUFS
+#endif
+#ifndef EISCONN
+#define EISCONN                 WSAEISCONN
+#endif
+#ifndef ENOTCONN
+#define ENOTCONN                WSAENOTCONN
+#endif
+#ifndef ESHUTDOWN
+#define ESHUTDOWN               WSAESHUTDOWN
+#endif
+#ifndef ETOOMANYREFS
+#define ETOOMANYREFS            WSAETOOMANYREFS
+#endif
+#ifndef ETIMEDOUT
+#define ETIMEDOUT               WSAETIMEDOUT
+#endif
+#ifndef ECONNREFUSED
+#define ECONNREFUSED            WSAECONNREFUSED
+#endif
+#ifndef ELOOP
+#define ELOOP                   WSAELOOP
+#endif
+#ifndef EHOSTDOWN
+#define EHOSTDOWN               WSAEHOSTDOWN
+#endif
+#ifndef EHOSTUNREACH
+#define EHOSTUNREACH            WSAEHOSTUNREACH
+#endif
+#ifndef EPROCLIM
+#define EPROCLIM                WSAEPROCLIM
+#endif
+#ifndef EUSERS
+#define EUSERS                  WSAEUSERS
+#endif
+#ifndef EDQUOT
+#define EDQUOT                  WSAEDQUOT
+#endif
+#ifndef ESTALE
+#define ESTALE                  WSAESTALE
+#endif
+#ifndef EREMOTE
+#define EREMOTE                 WSAEREMOTE
+#endif
+
+typedef char* caddr_t;
+
+#define bzero(buf, len) memset(buf, 0, len)
+#define bcopy(srcKey, dstKey, len) memcpy(dstKey, srcKey, len)
+
+#if defined(_MSC_VER) && (_MSC_VER < 1900) && !defined(__MINGW32__)
+#define SCTP_SNPRINTF(data, size, format, ...) 					\
+	if (_snprintf_s(data, size, _TRUNCATE, format, __VA_ARGS__) < 0) {	\
+		data[0] = '\0';							\
+	}
+#else
+#define SCTP_SNPRINTF(data, ...)						\
+	if (snprintf(data, __VA_ARGS__) < 0 ) {					\
+		data[0] = '\0';							\
+	}
+#endif
+
+#define inline __inline
+#define __inline__ __inline
+#define	MSG_EOR		0x8		/* data completes record */
+#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking */
+
+#ifdef CMSG_DATA
+#undef CMSG_DATA
+#endif
+/*
+ * The following definitions should apply iff WINVER < 0x0600
+ * but that check doesn't work in all cases. So be more pedantic...
+ */
+#define CMSG_DATA(x) WSA_CMSG_DATA(x)
+#define CMSG_ALIGN(x) WSA_CMSGDATA_ALIGN(x)
+#ifndef CMSG_FIRSTHDR
+#define CMSG_FIRSTHDR(x) WSA_CMSG_FIRSTHDR(x)
+#endif
+#ifndef CMSG_NXTHDR
+#define CMSG_NXTHDR(x, y) WSA_CMSG_NXTHDR(x, y)
+#endif
+#ifndef CMSG_SPACE
+#define CMSG_SPACE(x) WSA_CMSG_SPACE(x)
+#endif
+#ifndef CMSG_LEN
+#define CMSG_LEN(x) WSA_CMSG_LEN(x)
+#endif
+
+/****  from sctp_os_windows.h ***************/
+#define SCTP_IFN_IS_IFT_LOOP(ifn)	((ifn)->ifn_type == IFT_LOOP)
+#define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifa && (ro)->ro_rt->rt_ifa->ifa_ifp && (ro)->ro_rt->rt_ifa->ifa_ifp->if_type == IFT_LOOP)
+
+/*
+ * Access to IFN's to help with src-addr-selection
+ */
+/* This could return VOID if the index works but for BSD we provide both. */
+#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) \
+	((ro)->ro_rt != NULL ? (ro)->ro_rt->rt_ifp : NULL)
+#define SCTP_ROUTE_HAS_VALID_IFN(ro) \
+	((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
+/******************************************/
+
+#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles...  TODO use routing socket to determine */
+
+#define BIG_ENDIAN 1
+#define LITTLE_ENDIAN 0
+#ifdef WORDS_BIGENDIAN
+#define BYTE_ORDER BIG_ENDIAN
+#else
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
+
+#else /* !defined(Userspace_os_Windows) */
+#include <sys/socket.h>
+
+#if defined(__EMSCRIPTEN__) && !defined(__EMSCRIPTEN_PTHREADS__)
+#error "Unsupported build configuration."
+#endif
+
+#include <pthread.h>
+
+typedef pthread_mutex_t userland_mutex_t;
+typedef pthread_rwlock_t userland_rwlock_t;
+typedef pthread_cond_t userland_cond_t;
+typedef pthread_t userland_thread_t;
+#endif
+
+#if defined(_WIN32) || defined(__native_client__)
+
+#define IFNAMSIZ 64
+
+#define random() rand()
+#define srandom(s) srand(s)
+
+#define timeradd(tvp, uvp, vvp)   \
+	do {                          \
+	    (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;  \
+		(vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;  \
+		if ((vvp)->tv_usec >= 1000000) {                   \
+		    (vvp)->tv_sec++;                        \
+			(vvp)->tv_usec -= 1000000;             \
+		}                         \
+	} while (0)
+
+#define timersub(tvp, uvp, vvp)   \
+	do {                          \
+	    (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;  \
+		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;  \
+		if ((vvp)->tv_usec < 0) {                   \
+		    (vvp)->tv_sec--;                        \
+			(vvp)->tv_usec += 1000000;             \
+		}                       \
+	} while (0)
+
+/*#include <packon.h>
+#pragma pack(push, 1)*/
+struct ip {
+	u_char    ip_hl:4, ip_v:4;
+	u_char    ip_tos;
+	u_short   ip_len;
+	u_short   ip_id;
+	u_short   ip_off;
+#define IP_RP 0x8000
+#define IP_DF 0x4000
+#define IP_MF 0x2000
+#define IP_OFFMASK 0x1fff
+	u_char    ip_ttl;
+	u_char    ip_p;
+	u_short   ip_sum;
+	struct in_addr ip_src, ip_dst;
+};
+
+struct ifaddrs {
+	struct ifaddrs  *ifa_next;
+	char		*ifa_name;
+	unsigned int		 ifa_flags;
+	struct sockaddr	*ifa_addr;
+	struct sockaddr	*ifa_netmask;
+	struct sockaddr	*ifa_dstaddr;
+	void		*ifa_data;
+};
+
+struct udphdr {
+	uint16_t uh_sport;
+	uint16_t uh_dport;
+	uint16_t uh_ulen;
+	uint16_t uh_sum;
+};
+
+struct iovec {
+	size_t len;
+	char *buf;
+};
+
+#define iov_base buf
+#define iov_len	len
+
+struct ifa_msghdr {
+	uint16_t         ifam_msglen;
+	unsigned char    ifam_version;
+	unsigned char    ifam_type;
+	uint32_t         ifam_addrs;
+	uint32_t         ifam_flags;
+	uint16_t         ifam_index;
+	uint32_t         ifam_metric;
+};
+
+struct ifdevmtu {
+	int ifdm_current;
+	int ifdm_min;
+	int ifdm_max;
+};
+
+struct ifkpi {
+	unsigned int  ifk_module_id;
+	unsigned int  ifk_type;
+	union {
+		void *ifk_ptr;
+		int ifk_value;
+	} ifk_data;
+};
+#endif
+
+#if defined(_WIN32)
+int Win_getifaddrs(struct ifaddrs**);
+#define getifaddrs(interfaces)  (int)Win_getifaddrs(interfaces)
+int win_if_nametoindex(const char *);
+#define if_nametoindex(x) win_if_nametoindex(x)
+#endif
+
+#define mtx_lock(arg1)
+#define mtx_unlock(arg1)
+#define mtx_assert(arg1,arg2)
+#define MA_OWNED 7 /* sys/mutex.h typically on FreeBSD */
+#if !defined(__FreeBSD__)
+struct mtx {int dummy;};
+#if !defined(__NetBSD__)
+struct selinfo {int dummy;};
+#endif
+struct sx {int dummy;};
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+/* #include <sys/param.h>  in FreeBSD defines MSIZE */
+/* #include <sys/ktr.h> */
+/* #include <sys/systm.h> */
+#if defined(HAVE_SYS_QUEUE_H)
+#include <sys/queue.h>
+#else
+#include <user_queue.h>
+#endif
+#include <user_malloc.h>
+/* #include <sys/kernel.h> */
+/* #include <sys/sysctl.h> */
+/* #include <sys/protosw.h> */
+/* on FreeBSD, this results in a redefintion of SOCK(BUF)_(UN)LOCK and
+ *  uknown type of struct mtx for sb_mtx in struct sockbuf */
+#include "user_socketvar.h" /* MALLOC_DECLARE's M_PCB. Replacement for sys/socketvar.h */
+/* #include <sys/jail.h> */
+/* #include <sys/sysctl.h> */
+#include <user_environment.h>
+#include <user_atomic.h>
+#include <user_mbuf.h>
+/* #include <sys/uio.h> */
+/* #include <sys/lock.h> */
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <sys/rwlock.h>
+#endif
+/* #include <sys/kthread.h> */
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <sys/priv.h>
+#endif
+/* #include <sys/random.h> */
+#include <limits.h>
+/* #include <machine/cpu.h> */
+
+#if defined(__APPLE__)
+/* was a 0 byte file.  needed for structs if_data(64) and net_event_data */
+#include <net/if_var.h>
+#endif
+#if defined(__FreeBSD__)
+#include <net/if_types.h>
+/* #include <net/if_var.h> was a 0 byte file.  causes struct mtx redefinition */
+#endif
+/* OOTB only - dummy route used at the moment. should we port route to
+ *  userspace as well? */
+/* on FreeBSD, this results in a redefintion of struct route */
+/* #include <net/route.h> */
+#if !defined(_WIN32) && !defined(__native_client__)
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#endif
+#if defined(HAVE_NETINET_IP_ICMP_H)
+#include <netinet/ip_icmp.h>
+#else
+#include <user_ip_icmp.h>
+#endif
+/* #include <netinet/in_pcb.h> ported to userspace */
+#include <user_inpcb.h>
+
+/* for getifaddrs */
+#include <sys/types.h>
+#if !defined(_WIN32)
+#if defined(INET) || defined(INET6)
+#include <ifaddrs.h>
+#endif
+
+/* for ioctl */
+#include <sys/ioctl.h>
+
+/* for close, etc. */
+#include <unistd.h>
+/* for gettimeofday */
+#include <sys/time.h>
+#endif
+
+/* lots of errno's used and needed in userspace */
+
+/* for offsetof */
+#include <stddef.h>
+
+#if defined(SCTP_PROCESS_LEVEL_LOCKS) && !defined(_WIN32)
+/* for pthread_mutex_lock, pthread_mutex_unlock, etc. */
+#include <pthread.h>
+#endif
+
+#ifdef IPSEC
+#include <netipsec/ipsec.h>
+#include <netipsec/key.h>
+#endif				/* IPSEC */
+
+#ifdef INET6
+#if defined(__FreeBSD__)
+#include <sys/domain.h>
+#endif
+#ifdef IPSEC
+#include <netipsec/ipsec6.h>
+#endif
+#if !defined(_WIN32)
+#include <netinet/ip6.h>
+#endif
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__linux__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(_WIN32) || defined(__EMSCRIPTEN__)
+#include "user_ip6_var.h"
+#else
+#include <netinet6/ip6_var.h>
+#endif
+#if defined(__FreeBSD__)
+#include <netinet6/in6_pcb.h>
+#include <netinet6/ip6protosw.h>
+/* #include <netinet6/nd6.h> was a 0 byte file */
+#include <netinet6/scope6_var.h>
+#endif
+#endif /* INET6 */
+
+#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
+#include <sys/file.h>
+#include <sys/filedesc.h>
+#endif
+
+#include "netinet/sctp_sha1.h"
+
+#if defined(__FreeBSD__) && !defined(__Userspace__)
+#include <netinet/ip_options.h>
+#endif
+
+#define SCTP_PRINTF(...)                                  \
+	if (SCTP_BASE_VAR(debug_printf)) {                \
+		SCTP_BASE_VAR(debug_printf)(__VA_ARGS__); \
+	}
+
+/* Declare all the malloc names for all the various mallocs */
+MALLOC_DECLARE(SCTP_M_MAP);
+MALLOC_DECLARE(SCTP_M_STRMI);
+MALLOC_DECLARE(SCTP_M_STRMO);
+MALLOC_DECLARE(SCTP_M_ASC_ADDR);
+MALLOC_DECLARE(SCTP_M_ASC_IT);
+MALLOC_DECLARE(SCTP_M_AUTH_CL);
+MALLOC_DECLARE(SCTP_M_AUTH_KY);
+MALLOC_DECLARE(SCTP_M_AUTH_HL);
+MALLOC_DECLARE(SCTP_M_AUTH_IF);
+MALLOC_DECLARE(SCTP_M_STRESET);
+MALLOC_DECLARE(SCTP_M_CMSG);
+MALLOC_DECLARE(SCTP_M_COPYAL);
+MALLOC_DECLARE(SCTP_M_VRF);
+MALLOC_DECLARE(SCTP_M_IFA);
+MALLOC_DECLARE(SCTP_M_IFN);
+MALLOC_DECLARE(SCTP_M_TIMW);
+MALLOC_DECLARE(SCTP_M_MVRF);
+MALLOC_DECLARE(SCTP_M_ITER);
+MALLOC_DECLARE(SCTP_M_SOCKOPT);
+
+#if defined(SCTP_LOCAL_TRACE_BUF)
+
+#define SCTP_GET_CYCLECOUNT get_cyclecount()
+#define SCTP_CTR6 sctp_log_trace
+
+#else
+#define SCTP_CTR6 CTR6
+#endif
+
+/* Empty ktr statement for _Userspace__ (similar to what is done for mac) */
+#define	CTR6(m, d, p1, p2, p3, p4, p5, p6)
+
+
+
+#define SCTP_BASE_INFO(__m) system_base_info.sctppcbinfo.__m
+#define SCTP_BASE_STATS system_base_info.sctpstat
+#define SCTP_BASE_STAT(__m)     system_base_info.sctpstat.__m
+#define SCTP_BASE_SYSCTL(__m) system_base_info.sctpsysctl.__m
+#define SCTP_BASE_VAR(__m) system_base_info.__m
+
+/*
+ *
+ */
+#if !defined(__APPLE__)
+#define USER_ADDR_NULL	(NULL)		/* FIX ME: temp */
+#endif
+
+#include <netinet/sctp_constants.h>
+#if defined(SCTP_DEBUG)
+#define SCTPDBG(level, ...)					\
+{								\
+	do {							\
+		if (SCTP_BASE_SYSCTL(sctp_debug_on) & level) {	\
+			SCTP_PRINTF(__VA_ARGS__);		\
+		}						\
+	} while (0);						\
+}
+#define SCTPDBG_ADDR(level, addr)				\
+{								\
+	do {							\
+		if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) {	\
+		    sctp_print_address(addr);			\
+		}						\
+	} while (0);						\
+}
+#else
+#define SCTPDBG(level, ...)
+#define SCTPDBG_ADDR(level, addr)
+#endif
+
+#ifdef SCTP_LTRACE_CHUNKS
+#define SCTP_LTRACE_CHK(a, b, c, d) if(sctp_logging_level & SCTP_LTRACE_CHUNK_ENABLE) CTR6(KTR_SUBSYS, "SCTP:%d[%d]:%x-%x-%x-%x", SCTP_LOG_CHUNK_PROC, 0, a, b, c, d)
+#else
+#define SCTP_LTRACE_CHK(a, b, c, d)
+#endif
+
+#ifdef SCTP_LTRACE_ERRORS
+#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
+	if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
+		SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
+		            (void *)m, (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
+#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
+	if (sctp_logging_level & SCTP_LTRACE_ERROR_ENABLE) \
+		SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
+		            (void *)inp, (void *)stcb, (void *)net, file, __LINE__, err);
+#else
+#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
+#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
+#endif
+
+
+/*
+ * Local address and interface list handling
+ */
+#define SCTP_MAX_VRF_ID		0
+#define SCTP_SIZE_OF_VRF_HASH	3
+#define SCTP_IFNAMSIZ		IFNAMSIZ
+#define SCTP_DEFAULT_VRFID	0
+#define SCTP_VRF_ADDR_HASH_SIZE	16
+#define SCTP_VRF_IFN_HASH_SIZE	3
+#define	SCTP_INIT_VRF_TABLEID(vrf)
+
+#if !defined(_WIN32)
+#define SCTP_IFN_IS_IFT_LOOP(ifn) (strncmp((ifn)->ifn_name, "lo", 2) == 0)
+/* BSD definition */
+/* #define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifa && (ro)->ro_rt->rt_ifa->ifa_ifp && (ro)->ro_rt->rt_ifa->ifa_ifp->if_type == IFT_LOOP) */
+/* only used in IPv6 scenario, which isn't supported yet */
+#define SCTP_ROUTE_IS_REAL_LOOP(ro) 0
+
+/*
+ * Access to IFN's to help with src-addr-selection
+ */
+/* This could return VOID if the index works but for BSD we provide both. */
+#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
+#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) 1 /* compiles...  TODO use routing socket to determine */
+#define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
+#endif
+
+/*
+ * general memory allocation
+ */
+#define SCTP_MALLOC(var, type, size, name)				\
+	do {								\
+		MALLOC(var, type, size, name, M_NOWAIT);		\
+	} while (0)
+
+#define SCTP_FREE(var, type)	FREE(var, type)
+
+#define SCTP_MALLOC_SONAME(var, type, size)				\
+	do {								\
+		MALLOC(var, type, size, M_SONAME, (M_WAITOK | M_ZERO));	\
+	} while (0)
+
+#define SCTP_FREE_SONAME(var)	FREE(var, M_SONAME)
+
+#define SCTP_PROCESS_STRUCT struct proc *
+
+/*
+ * zone allocation functions
+ */
+
+
+#if defined(SCTP_SIMPLE_ALLOCATOR)
+/*typedef size_t sctp_zone_t;*/
+#define SCTP_ZONE_INIT(zone, name, size, number) { \
+	zone = size; \
+}
+
+/* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
+#define SCTP_ZONE_GET(zone, type)  \
+        (type *)malloc(zone);
+
+
+/* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
+#define SCTP_ZONE_FREE(zone, element) { \
+	free(element);  \
+}
+
+#define SCTP_ZONE_DESTROY(zone)
+#else
+/*__Userspace__
+  Compiling & linking notes: Needs libumem, which has been placed in ./user_lib
+  All userspace header files are in ./user_include. Makefile will need the
+  following.
+  CFLAGS = -I./ -Wall
+  LDFLAGS = -L./user_lib -R./user_lib -lumem
+*/
+#include "user_include/umem.h"
+
+/* __Userspace__ SCTP_ZONE_INIT: initialize the zone */
+/*
+  __Userspace__
+  No equivalent function to uma_zone_set_max added yet. (See SCTP_ZONE_INIT in sctp_os_bsd.h
+  for reference). It may not be required as mentioned in
+  http://nixdoc.net/man-pages/FreeBSD/uma_zalloc.9.html that
+  max limits may not enforced on systems with more than one CPU.
+*/
+#define SCTP_ZONE_INIT(zone, name, size, number) { \
+	zone = umem_cache_create(name, size, 0, NULL, NULL, NULL, NULL, NULL, 0); \
+  }
+
+/* __Userspace__ SCTP_ZONE_GET: allocate element from the zone */
+#define SCTP_ZONE_GET(zone, type) \
+        (type *)umem_cache_alloc(zone, UMEM_DEFAULT);
+
+
+/* __Userspace__ SCTP_ZONE_FREE: free element from the zone */
+#define SCTP_ZONE_FREE(zone, element) \
+	umem_cache_free(zone, element);
+
+
+/* __Userspace__ SCTP_ZONE_DESTROY: destroy the zone */
+#define SCTP_ZONE_DESTROY(zone) \
+	umem_cache_destroy(zone);
+#endif
+
+/*
+ * __Userspace__ Defining sctp_hashinit_flags() and sctp_hashdestroy() for userland.
+ */
+void *sctp_hashinit_flags(int elements, struct malloc_type *type,
+                    u_long *hashmask, int flags);
+void
+sctp_hashdestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask);
+
+void
+sctp_hashfreedestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask);
+
+
+#define HASH_NOWAIT 0x00000001
+#define HASH_WAITOK 0x00000002
+
+/* M_PCB is MALLOC_DECLARE'd in sys/socketvar.h */
+#define SCTP_HASH_INIT(size, hashmark) sctp_hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
+
+#define SCTP_HASH_FREE(table, hashmark) sctp_hashdestroy(table, M_PCB, hashmark)
+
+#define SCTP_HASH_FREE_DESTROY(table, hashmark)  sctp_hashfreedestroy(table, M_PCB, hashmark)
+#define SCTP_M_COPYM	m_copym
+
+/*
+ * timers
+ */
+/* __Userspace__
+ * user_sctp_callout.h has typedef struct sctp_callout sctp_os_timer_t;
+ * which is used in the timer related functions such as
+ * SCTP_OS_TIMER_INIT etc.
+*/
+#include <netinet/sctp_callout.h>
+
+/* __Userspace__ Creating a receive thread */
+#include <user_recv_thread.h>
+
+/*__Userspace__ defining KTR_SUBSYS 1 as done in sctp_os_macosx.h */
+#define KTR_SUBSYS 1
+
+/* The packed define for 64 bit platforms */
+#if !defined(_WIN32)
+#define SCTP_PACKED __attribute__((packed))
+#define SCTP_UNUSED __attribute__((unused))
+#else
+#define SCTP_PACKED
+#define SCTP_UNUSED
+#endif
+
+/*
+ * Functions
+ */
+/* Mbuf manipulation and access macros  */
+#define SCTP_BUF_LEN(m) (m->m_len)
+#define SCTP_BUF_NEXT(m) (m->m_next)
+#define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
+#define SCTP_BUF_RESV_UF(m, size) m->m_data += size
+#define SCTP_BUF_AT(m, size) m->m_data + size
+#define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
+#define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
+#define SCTP_BUF_TYPE(m) (m->m_type)
+#define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
+#define SCTP_BUF_PREPEND	M_PREPEND
+
+#define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
+                                     MH_ALIGN(m, len); \
+                                  } else if ((m->m_flags & M_EXT) == 0) { \
+                                     M_ALIGN(m, len); \
+                                  }
+
+#if !defined(_WIN32)
+#define SCTP_SNPRINTF(data, ...)						\
+	if (snprintf(data, __VA_ARGS__) < 0) {					\
+		data[0] = '\0';							\
+	}
+#endif
+
+/* We make it so if you have up to 4 threads
+ * writting based on the default size of
+ * the packet log 65 k, that would be
+ * 4 16k packets before we would hit
+ * a problem.
+ */
+#define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
+
+
+/*
+ * routes, output, etc.
+ */
+
+typedef struct sctp_route	sctp_route_t;
+typedef struct sctp_rtentry	sctp_rtentry_t;
+
+static inline void sctp_userspace_rtalloc(sctp_route_t *ro)
+{
+	if (ro->ro_rt != NULL) {
+		ro->ro_rt->rt_refcnt++;
+		return;
+	}
+
+	ro->ro_rt = (sctp_rtentry_t *) malloc(sizeof(sctp_rtentry_t));
+	if (ro->ro_rt == NULL)
+		return;
+
+	/* initialize */
+	memset(ro->ro_rt, 0, sizeof(sctp_rtentry_t));
+	ro->ro_rt->rt_refcnt = 1;
+
+	/* set MTU */
+	/* TODO set this based on the ro->ro_dst, looking up MTU with routing socket */
+#if 0
+	if (userspace_rawroute == -1) {
+		userspace_rawroute = socket(AF_ROUTE, SOCK_RAW, 0);
+		if (userspace_rawroute == -1)
+			return;
+	}
+#endif
+	ro->ro_rt->rt_rmx.rmx_mtu = 1500; /* FIXME temporary solution */
+
+	/* TODO enable the ability to obtain interface index of route for
+	 *  SCTP_GET_IF_INDEX_FROM_ROUTE macro.
+	 */
+}
+#define SCTP_RTALLOC(ro, vrf_id, fibnum) sctp_userspace_rtalloc((sctp_route_t *)ro)
+
+/* dummy rtfree needed once user_route.h is included */
+static inline void sctp_userspace_rtfree(sctp_rtentry_t *rt)
+{
+	if(rt == NULL) {
+		return;
+	}
+	if(--rt->rt_refcnt > 0) {
+		return;
+	}
+	free(rt);
+}
+#define rtfree(arg1) sctp_userspace_rtfree(arg1)
+
+
+/*************************/
+/*      MTU              */
+/*************************/
+int sctp_userspace_get_mtu_from_ifn(uint32_t if_index);
+
+#define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index) sctp_userspace_get_mtu_from_ifn(ifn_index)
+
+#define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
+
+#define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
+                                              if (rt != NULL) \
+                                                 rt->rt_rmx.rmx_mtu = mtu; \
+                                           } while(0)
+
+
+/*************************/
+/* These are for logging */
+/*************************/
+/* return the base ext data pointer */
+#define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
+ /* return the refcnt of the data pointer */
+#define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
+/* return any buffer related flags, this is
+ * used beyond logging for apple only.
+ */
+#define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
+
+/* For BSD this just accesses the M_PKTHDR length
+ * so it operates on an mbuf with hdr flag. Other
+ * O/S's may have seperate packet header and mbuf
+ * chain pointers.. thus the macro.
+ */
+#define SCTP_HEADER_TO_CHAIN(m) (m)
+#define SCTP_DETACH_HEADER_FROM_CHAIN(m)
+#define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
+#define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
+#define SCTP_RELEASE_HEADER(m)
+#define SCTP_RELEASE_PKT(m)	sctp_m_freem(m)
+
+#define SCTP_GET_PKT_VRFID(m, vrf_id)  ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
+
+
+
+/* Attach the chain of data into the sendable packet. */
+#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
+                                                  pak = m; \
+                                                  pak->m_pkthdr.len = packet_length; \
+                          } while(0)
+
+/* Other m_pkthdr type things */
+/* FIXME need real definitions */
+#define SCTP_IS_IT_BROADCAST(dst, m) 0
+/* OOTB only #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)  BSD def */
+#define SCTP_IS_IT_LOOPBACK(m) 0
+/* OOTB ONLY #define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))  BSD def */
+
+
+/* This converts any input packet header
+ * into the chain of data holders, for BSD
+ * its a NOP.
+ */
+
+/* get the v6 hop limit */
+#define SCTP_GET_HLIM(inp, ro) 128
+#define IPv6_HOP_LIMIT 128
+
+/* is the endpoint v6only? */
+#define SCTP_IPV6_V6ONLY(sctp_inpcb)	((sctp_inpcb)->ip_inp.inp.inp_flags & IN6P_IPV6_V6ONLY)
+/* is the socket non-blocking? */
+#define SCTP_SO_IS_NBIO(so)	((so)->so_state & SS_NBIO)
+#define SCTP_SET_SO_NBIO(so)	((so)->so_state |= SS_NBIO)
+#define SCTP_CLEAR_SO_NBIO(so)	((so)->so_state &= ~SS_NBIO)
+/* get the socket type */
+#define SCTP_SO_TYPE(so)	((so)->so_type)
+
+/* reserve sb space for a socket */
+#define SCTP_SORESERVE(so, send, recv)	soreserve(so, send, recv)
+
+/* wakeup a socket */
+#define SCTP_SOWAKEUP(so)	wakeup(&(so)->so_timeo, so)
+/* number of bytes ready to read */
+#define SCTP_SBAVAIL(sb)	(sb)->sb_cc
+/* clear the socket buffer state */
+#define SCTP_SB_CLEAR(sb)	\
+	(sb).sb_cc = 0;		\
+	(sb).sb_mb = NULL;	\
+	(sb).sb_mbcnt = 0;
+
+#define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
+#define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
+
+#define SCTP_READ_RANDOM(buf, len)	read_random(buf, len)
+
+#define SCTP_SHA1_CTX		struct sctp_sha1_context
+#define SCTP_SHA1_INIT		sctp_sha1_init
+#define SCTP_SHA1_UPDATE	sctp_sha1_update
+#define SCTP_SHA1_FINAL(x,y)	sctp_sha1_final((unsigned char *)x, y)
+
+/* start OOTB only stuff */
+/* TODO IFT_LOOP is in net/if_types.h on Linux */
+#define IFT_LOOP 0x18
+
+/* sctp_pcb.h */
+
+#if defined(_WIN32)
+#define SHUT_RD 1
+#define SHUT_WR 2
+#define SHUT_RDWR 3
+#endif
+#define PRU_FLUSH_RD SHUT_RD
+#define PRU_FLUSH_WR SHUT_WR
+#define PRU_FLUSH_RDWR SHUT_RDWR
+
+/* netinet/ip_var.h defintions are behind an if defined for _KERNEL on FreeBSD */
+#define	IP_RAWOUTPUT		0x2
+
+
+/* end OOTB only stuff */
+
+#define AF_CONN 123
+struct sockaddr_conn {
+#ifdef HAVE_SCONN_LEN
+	uint8_t sconn_len;
+	uint8_t sconn_family;
+#else
+	uint16_t sconn_family;
+#endif
+	uint16_t sconn_port;
+	void *sconn_addr;
+};
+
+typedef void *(*start_routine_t)(void *);
+
+extern int
+sctp_userspace_thread_create(userland_thread_t *thread, start_routine_t start_routine);
+
+void
+sctp_userspace_set_threadname(const char *name);
+
+/*
+ * SCTP protocol specific mbuf flags.
+ */
+#define	M_NOTIFICATION		M_PROTO5	/* SCTP notification */
+
+/*
+ * IP output routines
+ */
+
+/* Defining SCTP_IP_ID macro.
+   In netinet/ip_output.c, we have u_short ip_id;
+   In netinet/ip_var.h, we have extern u_short	ip_id; (enclosed within _KERNEL_)
+   See static __inline uint16_t ip_newid(void) in netinet/ip_var.h
+ */
+#define SCTP_IP_ID(inp) (ip_id)
+
+/* need sctphdr to get port in SCTP_IP_OUTPUT. sctphdr defined in sctp.h  */
+#include <netinet/sctp.h>
+extern void sctp_userspace_ip_output(int *result, struct mbuf *o_pak,
+                                     sctp_route_t *ro, void *stcb,
+                                     uint32_t vrf_id);
+
+#define SCTP_IP_OUTPUT(result, o_pak, ro, inp, vrf_id) sctp_userspace_ip_output(&result, o_pak, ro, inp, vrf_id);
+
+#if defined(INET6)
+extern void sctp_userspace_ip6_output(int *result, struct mbuf *o_pak,
+                                      struct route_in6 *ro, void *stcb,
+                                      uint32_t vrf_id);
+#define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, inp, vrf_id) sctp_userspace_ip6_output(&result, o_pak, ro, inp, vrf_id);
+#endif
+
+
+
+#if 0
+#define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
+{ \
+	if (stcb && stcb->sctp_ep) \
+		result = ip6_output(o_pak, \
+				    ((struct inpcb *)(stcb->sctp_ep))->in6p_outputopts, \
+				    (ro), 0, 0, ifp, NULL); \
+	else \
+		result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
+}
+#endif
+
+struct mbuf *
+sctp_get_mbuf_for_msg(unsigned int space_needed, int want_header, int how, int allonebuf, int type);
+
+
+/* with the current included files, this is defined in Linux but
+ *  in FreeBSD, it is behind a _KERNEL in sys/socket.h ...
+ */
+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__native_client__)
+/* stolen from /usr/include/sys/socket.h */
+#define CMSG_ALIGN(n)   _ALIGN(n)
+#elif defined(__NetBSD__)
+#define CMSG_ALIGN(n)   (((n) + __ALIGNBYTES) & ~__ALIGNBYTES)
+#elif defined(__APPLE__)
+#if !defined(__DARWIN_ALIGNBYTES)
+#define	__DARWIN_ALIGNBYTES	(sizeof(__darwin_size_t) - 1)
+#endif
+
+#if !defined(__DARWIN_ALIGN)
+#define	__DARWIN_ALIGN(p)	((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES) &~ __DARWIN_ALIGNBYTES)
+#endif
+
+#if !defined(__DARWIN_ALIGNBYTES32)
+#define __DARWIN_ALIGNBYTES32     (sizeof(__uint32_t) - 1)
+#endif
+
+#if !defined(__DARWIN_ALIGN32)
+#define __DARWIN_ALIGN32(p)       ((__darwin_size_t)((char *)(uintptr_t)(p) + __DARWIN_ALIGNBYTES32) &~ __DARWIN_ALIGNBYTES32)
+#endif
+#define CMSG_ALIGN(n)   __DARWIN_ALIGN32(n)
+#endif
+#define I_AM_HERE \
+                do { \
+			SCTP_PRINTF("%s:%d at %s\n", __FILE__, __LINE__ , __func__); \
+		} while (0)
+
+#ifndef timevalsub
+#define timevalsub(tp1, tp2)                       \
+	do {                                       \
+		(tp1)->tv_sec -= (tp2)->tv_sec;    \
+		(tp1)->tv_usec -= (tp2)->tv_usec;  \
+		if ((tp1)->tv_usec < 0) {          \
+			(tp1)->tv_sec--;           \
+			(tp1)->tv_usec += 1000000; \
+		}                                  \
+	} while (0)
+#endif
+
+#if defined(__linux__)
+#if !defined(TAILQ_FOREACH_SAFE)
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar)             \
+         for ((var) = ((head)->tqh_first);                     \
+              (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+              (var) = (tvar))
+#endif
+#if !defined(LIST_FOREACH_SAFE)
+#define LIST_FOREACH_SAFE(var, head, field, tvar)              \
+         for ((var) = ((head)->lh_first);                      \
+              (var) && ((tvar) = LIST_NEXT((var), field), 1);  \
+              (var) = (tvar))
+#endif
+#endif
+#if defined(__DragonFly__)
+#define TAILQ_FOREACH_SAFE TAILQ_FOREACH_MUTABLE
+#define LIST_FOREACH_SAFE LIST_FOREACH_MUTABLE
+#endif
+
+#if defined(__native_client__)
+#define	timercmp(tvp, uvp, cmp)						\
+	(((tvp)->tv_sec == (uvp)->tv_sec) ?				\
+	    ((tvp)->tv_usec cmp (uvp)->tv_usec) :			\
+	    ((tvp)->tv_sec cmp (uvp)->tv_sec))
+#endif
+
+#define SCTP_IS_LISTENING(inp) ((inp->sctp_flags & SCTP_PCB_FLAGS_ACCEPTING) != 0)
+
+#if defined(__APPLE__) || defined(__DragonFly__) || defined(__linux__) || defined(__native_client__) || defined(__NetBSD__) || defined(_WIN32) || defined(__Fuchsia__) || defined(__EMSCRIPTEN__)
+int
+timingsafe_bcmp(const void *, const void *, size_t);
+#endif
+
+#endif