/*-

 * 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/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.

   */

}

Unexecuted instantiation: user_socket.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_bsd_addr.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_callout.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_crc32.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_input.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_output.c:sctp_userspace_rtalloc

sctp_pcb.c:sctp_userspace_rtalloc

Line

Count

Source

836

62.7k

{

837

62.7k

  if (ro->ro_rt != NULL) {

838

0

    ro->ro_rt->rt_refcnt++;

839

0

    return;

840

0

  }

841

842

62.7k

  ro->ro_rt = (sctp_rtentry_t *) malloc(sizeof(sctp_rtentry_t));

843

62.7k

  if (ro->ro_rt == NULL)

844

0

    return;

845

846

  /* initialize */

847

62.7k

  memset(ro->ro_rt, 0, sizeof(sctp_rtentry_t));

848

62.7k

  ro->ro_rt->rt_refcnt = 1;

849

850

  /* set MTU */

851

  /* TODO set this based on the ro->ro_dst, looking up MTU with routing socket */

852

#if 0

853

  if (userspace_rawroute == -1) {

854

    userspace_rawroute = socket(AF_ROUTE, SOCK_RAW, 0);

855

    if (userspace_rawroute == -1)

856

      return;

857

  }

858

#endif

859

62.7k

  ro->ro_rt->rt_rmx.rmx_mtu = 1500; /* FIXME temporary solution */

860

861

  /* TODO enable the ability to obtain interface index of route for

862

   *  SCTP_GET_IF_INDEX_FROM_ROUTE macro.

863

   */

864

62.7k

}

Unexecuted instantiation: sctp_peeloff.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_timer.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_userspace.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_usrreq.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctputil.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp6_usrreq.c:sctp_userspace_rtalloc

Unexecuted instantiation: user_environment.c:sctp_userspace_rtalloc

Unexecuted instantiation: user_mbuf.c:sctp_userspace_rtalloc

Unexecuted instantiation: user_recv_thread.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_asconf.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_auth.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_cc_functions.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_indata.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_ss_functions.c:sctp_userspace_rtalloc

Unexecuted instantiation: sctp_sysctl.c:sctp_userspace_rtalloc

#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);

}

Unexecuted instantiation: user_socket.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_bsd_addr.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_callout.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_crc32.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_input.c:sctp_userspace_rtfree

sctp_output.c:sctp_userspace_rtfree

Line

Count

Source

869

591

{

870

591

  if(rt == NULL) {

871

0

    return;

872

0

  }

873

591

  if(--rt->rt_refcnt > 0) {

874

0

    return;

875

0

  }

876

591

  free(rt);

877

591

}

sctp_pcb.c:sctp_userspace_rtfree

Line

Count

Source

869

59.7k

{

870

59.7k

  if(rt == NULL) {

871

0

    return;

872

0

  }

873

59.7k

  if(--rt->rt_refcnt > 0) {

874

0

    return;

875

0

  }

876

59.7k

  free(rt);

877

59.7k

}

Unexecuted instantiation: sctp_peeloff.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_timer.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_userspace.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_usrreq.c:sctp_userspace_rtfree

sctputil.c:sctp_userspace_rtfree

Line

Count

Source

869

2.45k

{

870

2.45k

  if(rt == NULL) {

871

0

    return;

872

0

  }

873

2.45k

  if(--rt->rt_refcnt > 0) {

874

0

    return;

875

0

  }

876

2.45k

  free(rt);

877

2.45k

}

Unexecuted instantiation: sctp6_usrreq.c:sctp_userspace_rtfree

Unexecuted instantiation: user_environment.c:sctp_userspace_rtfree

Unexecuted instantiation: user_mbuf.c:sctp_userspace_rtfree

Unexecuted instantiation: user_recv_thread.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_asconf.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_auth.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_cc_functions.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_indata.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_ss_functions.c:sctp_userspace_rtfree

Unexecuted instantiation: sctp_sysctl.c:sctp_userspace_rtfree

#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

#define SCTP_SB_INCR(sb, incr)      \

{           \

  atomic_add_int(&(sb)->sb_cc, incr); \

}

#define SCTP_SB_DECR(sb, decr)          \

{               \

  SCTP_SAVE_ATOMIC_DECREMENT(&(sb)->sb_cc, (int)(decr)); \

}

/* 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);