Enable SCTP target in libjingle.gyp. SCTP was already existed in Chrome third_party for a while but never used. Libjingle is trying use it for DataChannels.

Review URL: https://chromiumcodereview.appspot.com/16196007 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@205864 0039d316-1c4b-4281-b951-d872f2087c98
author: mallinath@chromium.org <mallinath@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> 2013-06-12 17:57:40 +0000
committer: mallinath@chromium.org <mallinath@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> 2013-06-12 17:57:40 +0000
commit: bbba883a09900e829f9d36e401d0a7212b9e33b7 (patch)
tree: bcd866716815c3ab2db10c7184742594c3e18cdd
parent: 4999217fea54c8c95ed56f9c8997113960884ddd (diff)
download: chromium_src-bbba883a09900e829f9d36e401d0a7212b9e33b7.zip
chromium_src-bbba883a09900e829f9d36e401d0a7212b9e33b7.tar.gz
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12 files changed, 2185 insertions, 28 deletions
diff --git a/third_party/libjingle/libjingle.gyp b/third_party/libjingle/libjingle.gyp
index 2a1bb27..a770d29 100644
--- a/third_party/libjingle/libjingle.gyp
+++ b/third_party/libjingle/libjingle.gyp
@@ -22,7 +22,6 @@
       'HAVE_SRTP',
       'HAVE_WEBRTC_VIDEO',
       'HAVE_WEBRTC_VOICE',
-      'HAVE_YUV',
       'JSONCPP_RELATIVE_PATH',
       'LOGGING_INSIDE_LIBJINGLE',
       'NO_MAIN_THREAD_WRAPPING',
@@ -45,6 +44,7 @@
       '../../testing/gtest/include',
       '../../third_party',
       '../../third_party/libyuv/include',
+      '../../third_party/usrsctp',
       '../../third_party/webrtc',
     ],
     'dependencies': [
@@ -768,6 +768,17 @@
                 'overrides/allocator_shim/allocator_stub.h',
               ],
             }],
+            # TODO(mallinath) - Enable SCTP for Android and iOS platforms.
+            ['OS!="android" and OS!="ios"', {
+              # TODO(mallinath) - Add HAVE_SCTP flag.
+              'sources': [
+                '<(libjingle_source)/talk/media/sctp/sctpdataengine.cc',
+                '<(libjingle_source)/talk/media/sctp/sctpdataengine.h',
+              ],
+              'dependencies': [
+                '<(DEPTH)/third_party/usrsctp/usrsctp.gyp:usrsctplib',
+              ],
+            }],
             ['enabled_libjingle_device_manager==1', {
               'sources!': [
                 '<(libjingle_source)/talk/media/devices/dummydevicemanager.cc',
diff --git a/third_party/usrsctp/OWNERS b/third_party/usrsctp/OWNERS
new file mode 100644
index 0000000..8d7c574
--- /dev/null
+++ b/third_party/usrsctp/OWNERS
@@ -0,0 +1,2 @@
+mallinath@chromium.org
+ronghuawu@chromium.org
diff --git a/third_party/usrsctp/README.chromium b/third_party/usrsctp/README.chromium
index 9dc2298..087a03fc 100644
--- a/third_party/usrsctp/README.chromium
+++ b/third_party/usrsctp/README.chromium
@@ -8,7 +8,19 @@ License File: LICENSE
 Security Critical: yes
 
 Description:
-The libjingle/webrtc uses usrsctp as the reliability layer for data channels.
+The usrsctplib provides implementation of SCTP protocol which fully supports RFC 2960
+as well as updates and enhancements from the following Internet Drafts:
+   draft-ietf-tsvwg-sctpcsum-05.txt
+   draft-ietf-tsvwg-sctpimpguide-05.txt
+   draft-ietf-tsvwg-sctpsocket-04.txt
+   draft-ietf-tsvwg-addip-sctp-05.txt
+   draft-stewart-prsctp-00.txt
+   draft-stewart-tsvwg-sctpipv6-00.txt
+   draft-iyengar-sctp-cacc-00.txt
 
 Local Modifications:
-None.
-\ No newline at end of file
+usrsctplib provides its own SHA1 implementations as part of the library. Since chrome
+already has the support of both NSS and OPENSSL which already has the implementation
+of SHA1, Chromium will not include the SHA1 from usrsctplib.
+Overrides folder has the necessary changes to strip existing SHA1 implementation in
+usrsctplib and use OPENSSL or NSS implementation based on the platform type.
diff --git a/third_party/usrsctp/localchanges.patch b/third_party/usrsctp/localchanges.patch
new file mode 100644
index 0000000..b784a42
--- /dev/null
+++ b/third_party/usrsctp/localchanges.patch
@@ -0,0 +1,289 @@
+diff -NcrB usrsctplib/netinet/sctp_auth.h overrides/usrsctplib/netinet/sctp_auth.h
+*** usrsctplib/netinet/sctp_auth.h	2013-06-10 17:41:59.323347517 -0700
+--- overrides/usrsctplib/netinet/sctp_auth.h	2013-06-10 17:44:55.584797436 -0700
+***************
+*** 38,43 ****
+--- 38,44 ----
+  #ifndef _NETINET_SCTP_AUTH_H_
+  #define _NETINET_SCTP_AUTH_H_
+  
++ #include <netinet/sctp_sha1.h>
+  
+  /* digest lengths */
+  #define SCTP_AUTH_DIGEST_LEN_SHA1	20
+diff -NcrB usrsctplib/netinet/sctp_nss_sha1.c overrides/usrsctplib/netinet/sctp_nss_sha1.c
+*** usrsctplib/netinet/sctp_nss_sha1.c	1969-12-31 16:00:00.000000000 -0800
+--- overrides/usrsctplib/netinet/sctp_nss_sha1.c	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 0 ****
+--- 1,61 ----
++ /*-
++  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
++  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
++  * Copyright (c) 2008-2012, by Michael Tuexen. 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.
++  */
++ 
++ #ifdef __FreeBSD__
++ #include <sys/cdefs.h>
++ __FBSDID("$FreeBSD$");
++ #endif
++ 
++ #ifdef SCTP_USE_NSS_SHA1
++ #include <netinet/sctp_nss_sha1.h>
++ 
++ void
++ SCTP_NSS_SHA1_Init(struct sha1_context *ctx)
++ {
++ 	ctx->pk11_ctx = PK11_CreateDigestContext(SEC_OID_SHA1);
++ 	PK11_DigestBegin(ctx->pk11_ctx);
++ }
++ 
++ void
++ SCTP_NSS_SHA1_Update(struct sha1_context *ctx, const unsigned char *ptr, int siz)
++ {
++ 	PK11_DigestOp(ctx->pk11_ctx, ptr, siz);
++ }
++ 
++ void
++ SCTP_NSS_SHA1_Final(unsigned char *digest, struct sha1_context *ctx)
++ {
++ 	unsigned int output_len = 0;
++ 	PK11_DigestFinal(ctx->pk11_ctx, digest, &output_len, sizeof(digest));
++ 	PK11_DestroyContext(ctx->pk11_ctx, PR_TRUE);
++ }
++ #endif
+diff -NcrB usrsctplib/netinet/sctp_nss_sha1.h overrides/usrsctplib/netinet/sctp_nss_sha1.h
+*** usrsctplib/netinet/sctp_nss_sha1.h	1969-12-31 16:00:00.000000000 -0800
+--- overrides/usrsctplib/netinet/sctp_nss_sha1.h	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 0 ****
+--- 1,64 ----
++ /*-
++  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
++  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
++  * Copyright (c) 2008-2012, by Michael Tuexen. 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.
++  */
++ 
++ #ifdef __FreeBSD__
++ #include <sys/cdefs.h>
++ __FBSDID("$FreeBSD$");
++ #endif
++ 
++ #ifndef __SCTP_NSS_SHA1_h__
++ #define __SCTP_NSS_SHA1_h__
++ 
++ #ifdef __Userspace_os_Darwin
++ #define __APPLE__
++ #endif
++ 
++ #include <sys/types.h>
++ #include <pk11pub.h>
++ 
++ #ifdef __Userspace_os_Darwin
++ #undef __APPLE__
++ #endif
++ 
++ struct sha1_context {
++ 	struct PK11Context *pk11_ctx;
++ };   // Opaque structure.
++ 
++ typedef struct sha1_context SHA1_CTX;
++ 
++ #if defined(_KERNEL) || defined(__Userspace__)
++ #define SHA1_Init SCTP_NSS_SHA1_Init
++ #define SHA1_Update SCTP_NSS_SHA1_Update
++ #define SHA1_Final SCTP_NSS_SHA1_Final
++ 
++ #endif				/* _KERNEL */
++ #endif
+diff -NcrB usrsctplib/netinet/sctp_openssl_sha1.h overrides/usrsctplib/netinet/sctp_openssl_sha1.h
+*** usrsctplib/netinet/sctp_openssl_sha1.h	1969-12-31 16:00:00.000000000 -0800
+--- overrides/usrsctplib/netinet/sctp_openssl_sha1.h	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 0 ****
+--- 1,48 ----
++ /*-
++  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
++  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
++  * Copyright (c) 2008-2012, by Michael Tuexen. 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.
++  */
++ 
++ #ifdef __FreeBSD__
++ #include <sys/cdefs.h>
++ __FBSDID("$FreeBSD$");
++ #endif
++ 
++ #ifndef __SCTP_OPENSSL_SHA1_h__
++ #define __SCTP_OPENSSL_SHA1_h__
++ 
++ #include <openssl/md5.h>
++ #include <openssl/sha.h>
++ /* libssl-dev calls this SHA_CTX, but it's refered to as SHA1_CTX within the
++  *  SCTP stack code so here we typedef (or macro?) to equate the two.
++  */
++ typedef SHA_CTX SHA1_CTX;
++ 
++ #endif
+diff -NcrB usrsctplib/netinet/sctp_os.h overrides/usrsctplib/netinet/sctp_os.h
+*** usrsctplib/netinet/sctp_os.h	2013-06-10 17:42:10.643440747 -0700
+--- overrides/usrsctplib/netinet/sctp_os.h	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 73,79 ****
+  #endif
+  
+  #if defined(__APPLE__)
+! #include <netinet/sctp_os_macosx.h>
+  #endif
+  
+  #if defined(__Panda__)
+--- 73,80 ----
+  #endif
+  
+  #if defined(__APPLE__)
+! #undef __APPLE__
+! // #include <netinet/sctp_os_macosx.h>
+  #endif
+  
+  #if defined(__Panda__)
+diff -NcrB usrsctplib/netinet/sctp_os_userspace.h overrides/usrsctplib/netinet/sctp_os_userspace.h
+*** usrsctplib/netinet/sctp_os_userspace.h	2013-06-10 17:42:23.763548800 -0700
+--- overrides/usrsctplib/netinet/sctp_os_userspace.h	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 992,1000 ****
+  #define SCTP_READ_RANDOM(buf, len)	read_random(buf, len)
+  
+  
+- #ifdef USE_SCTP_SHA1
+  #include <netinet/sctp_sha1.h>
+- #else
+  #if 0 /*this was old _KERNEL code... */
+  #include <crypto/sha1.h>
+  /* map standard crypto API names */
+--- 992,998 ----
+***************
+*** 1002,1008 ****
+  #define SHA1_Update	SHA1Update
+  #define SHA1_Final(x,y)	SHA1Final((caddr_t)x, y)
+  #endif
+- #endif
+  
+  #if defined(HAVE_SHA2)
+  #include <crypto/sha2/sha2.h>
+--- 1000,1005 ----
+diff -NcrB usrsctplib/netinet/sctp_sha1.h overrides/usrsctplib/netinet/sctp_sha1.h
+*** usrsctplib/netinet/sctp_sha1.h	2013-06-10 17:42:32.483620614 -0700
+--- overrides/usrsctplib/netinet/sctp_sha1.h	2013-06-10 17:41:29.603102743 -0700
+***************
+*** 36,46 ****
+  #endif
+  
+  
+! #ifndef __SCTP_SLA1_h__
+! #define __SCTP_SLA1_h__
+  
+  #include <sys/types.h>
+! 
+  struct sha1_context {
+  	unsigned int A;
+  	unsigned int B;
+--- 36,50 ----
+  #endif
+  
+  
+! #ifndef __SCTP_SHA1_h__
+! #define __SCTP_SHA1_h__
+  
+  #include <sys/types.h>
+! #ifdef SCTP_USE_NSS_SHA1
+! #include <netinet/sctp_nss_sha1.h>
+! #elif SCTP_USE_OPENSSL_SHA1
+! #include <netinet/sctp_openssl_sha1.h>
+! #else  // USE_SCTP_SHA1
+  struct sha1_context {
+  	unsigned int A;
+  	unsigned int B;
+***************
+*** 96,98 ****
+--- 100,103 ----
+  
+  #endif				/* _KERNEL */
+  #endif
++ #endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_auth.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_auth.h
new file mode 100644
index 0000000..9438bb1
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_auth.h
@@ -0,0 +1,223 @@
+/*-
+ * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_auth.h 235828 2012-05-23 11:26:28Z tuexen $");
+#endif
+
+#ifndef _NETINET_SCTP_AUTH_H_
+#define _NETINET_SCTP_AUTH_H_
+
+#include <netinet/sctp_sha1.h>
+
+/* digest lengths */
+#define SCTP_AUTH_DIGEST_LEN_SHA1	20
+#define SCTP_AUTH_DIGEST_LEN_SHA224	28
+#define SCTP_AUTH_DIGEST_LEN_SHA256	32
+#define SCTP_AUTH_DIGEST_LEN_SHA384	48
+#define SCTP_AUTH_DIGEST_LEN_SHA512	64
+#define SCTP_AUTH_DIGEST_LEN_MAX	64
+
+/* random sizes */
+#define SCTP_AUTH_RANDOM_SIZE_DEFAULT	32
+#define SCTP_AUTH_RANDOM_SIZE_REQUIRED	32
+#define SCTP_AUTH_RANDOM_SIZE_MAX	256
+
+/* union of all supported HMAC algorithm contexts */
+typedef union sctp_hash_context {
+	SHA1_CTX sha1;
+#ifdef HAVE_SHA2
+	SHA256_CTX sha256;
+	SHA384_CTX sha384;
+	SHA512_CTX sha512;
+#endif
+} sctp_hash_context_t;
+
+typedef struct sctp_key {
+	uint32_t keylen;
+	uint8_t key[];
+} sctp_key_t;
+
+typedef struct sctp_shared_key {
+	LIST_ENTRY(sctp_shared_key) next;
+	sctp_key_t *key;	/* key text */
+	uint32_t refcount;	/* reference count */
+	uint16_t keyid;		/* shared key ID */
+	uint8_t deactivated;	/* key is deactivated */
+} sctp_sharedkey_t;
+
+LIST_HEAD(sctp_keyhead, sctp_shared_key);
+
+/* authentication chunks list */
+typedef struct sctp_auth_chklist {
+	uint8_t chunks[256];
+	uint8_t num_chunks;
+} sctp_auth_chklist_t;
+
+/* hmac algos supported list */
+typedef struct sctp_hmaclist {
+	uint16_t max_algo;	/* max algorithms allocated */
+	uint16_t num_algo;	/* num algorithms used */
+	uint16_t hmac[];
+} sctp_hmaclist_t;
+
+/* authentication info */
+typedef struct sctp_authinformation {
+	sctp_key_t *random;	/* local random key (concatenated) */
+	uint32_t random_len;	/* local random number length for param */
+	sctp_key_t *peer_random;/* peer's random key (concatenated) */
+	sctp_key_t *assoc_key;	/* cached concatenated send key */
+	sctp_key_t *recv_key;	/* cached concatenated recv key */
+	uint16_t active_keyid;	/* active send keyid */
+	uint16_t assoc_keyid;	/* current send keyid (cached) */
+	uint16_t recv_keyid;	/* last recv keyid (cached) */
+} sctp_authinfo_t;
+
+
+
+/*
+ * Macros
+ */
+#define sctp_auth_is_required_chunk(chunk, list) ((list == NULL) ? (0) : (list->chunks[chunk] != 0))
+
+/*
+ * function prototypes
+ */
+
+/* socket option api functions */
+extern sctp_auth_chklist_t *sctp_alloc_chunklist(void);
+extern void sctp_free_chunklist(sctp_auth_chklist_t *chklist);
+extern void sctp_clear_chunklist(sctp_auth_chklist_t *chklist);
+extern sctp_auth_chklist_t *sctp_copy_chunklist(sctp_auth_chklist_t *chklist);
+extern int sctp_auth_add_chunk(uint8_t chunk, sctp_auth_chklist_t *list);
+extern int sctp_auth_delete_chunk(uint8_t chunk, sctp_auth_chklist_t *list);
+extern size_t sctp_auth_get_chklist_size(const sctp_auth_chklist_t *list);
+extern void sctp_auth_set_default_chunks(sctp_auth_chklist_t *list);
+extern int sctp_serialize_auth_chunks(const sctp_auth_chklist_t *list,
+    uint8_t *ptr);
+extern int sctp_pack_auth_chunks(const sctp_auth_chklist_t *list,
+    uint8_t *ptr);
+extern int sctp_unpack_auth_chunks(const uint8_t *ptr, uint8_t num_chunks,
+    sctp_auth_chklist_t *list);
+
+/* key handling */
+extern sctp_key_t *sctp_alloc_key(uint32_t keylen);
+extern void sctp_free_key(sctp_key_t *key);
+extern void sctp_print_key(sctp_key_t *key, const char *str);
+extern void sctp_show_key(sctp_key_t *key, const char *str);
+extern sctp_key_t *sctp_generate_random_key(uint32_t keylen);
+extern sctp_key_t *sctp_set_key(uint8_t *key, uint32_t keylen);
+extern sctp_key_t *sctp_compute_hashkey(sctp_key_t *key1, sctp_key_t *key2,
+    sctp_key_t *shared);
+
+/* shared key handling */
+extern sctp_sharedkey_t *sctp_alloc_sharedkey(void);
+extern void sctp_free_sharedkey(sctp_sharedkey_t *skey);
+extern sctp_sharedkey_t *sctp_find_sharedkey(struct sctp_keyhead *shared_keys,
+    uint16_t key_id);
+extern int sctp_insert_sharedkey(struct sctp_keyhead *shared_keys,
+    sctp_sharedkey_t *new_skey);
+extern int sctp_copy_skeylist(const struct sctp_keyhead *src,
+    struct sctp_keyhead *dest);
+/* ref counts on shared keys, by key id */
+extern void sctp_auth_key_acquire(struct sctp_tcb *stcb, uint16_t keyid);
+extern void sctp_auth_key_release(struct sctp_tcb *stcb, uint16_t keyid,
+    int so_locked);
+
+
+/* hmac list handling */
+extern sctp_hmaclist_t *sctp_alloc_hmaclist(uint8_t num_hmacs);
+extern void sctp_free_hmaclist(sctp_hmaclist_t *list);
+extern int sctp_auth_add_hmacid(sctp_hmaclist_t *list, uint16_t hmac_id);
+extern sctp_hmaclist_t *sctp_copy_hmaclist(sctp_hmaclist_t *list);
+extern sctp_hmaclist_t *sctp_default_supported_hmaclist(void);
+extern uint16_t sctp_negotiate_hmacid(sctp_hmaclist_t *peer,
+    sctp_hmaclist_t *local);
+extern int sctp_serialize_hmaclist(sctp_hmaclist_t *list, uint8_t *ptr);
+extern int sctp_verify_hmac_param(struct sctp_auth_hmac_algo *hmacs,
+    uint32_t num_hmacs);
+
+extern sctp_authinfo_t *sctp_alloc_authinfo(void);
+extern void sctp_free_authinfo(sctp_authinfo_t *authinfo);
+
+/* keyed-HMAC functions */
+extern uint32_t sctp_get_auth_chunk_len(uint16_t hmac_algo);
+extern uint32_t sctp_get_hmac_digest_len(uint16_t hmac_algo);
+extern uint32_t sctp_hmac(uint16_t hmac_algo, uint8_t *key, uint32_t keylen,
+    uint8_t *text, uint32_t textlen, uint8_t *digest);
+extern int sctp_verify_hmac(uint16_t hmac_algo, uint8_t *key, uint32_t keylen,
+    uint8_t *text, uint32_t textlen, uint8_t *digest, uint32_t digestlen);
+extern uint32_t sctp_compute_hmac(uint16_t hmac_algo, sctp_key_t *key,
+    uint8_t *text, uint32_t textlen, uint8_t *digest);
+extern int sctp_auth_is_supported_hmac(sctp_hmaclist_t *list, uint16_t id);
+
+/* mbuf versions */
+extern uint32_t sctp_hmac_m(uint16_t hmac_algo, uint8_t *key, uint32_t keylen,
+    struct mbuf *m, uint32_t m_offset, uint8_t *digest, uint32_t trailer);
+extern uint32_t sctp_compute_hmac_m(uint16_t hmac_algo, sctp_key_t *key,
+    struct mbuf *m, uint32_t m_offset, uint8_t *digest);
+
+/*
+ * authentication routines
+ */
+extern void sctp_clear_cachedkeys(struct sctp_tcb *stcb, uint16_t keyid);
+extern void sctp_clear_cachedkeys_ep(struct sctp_inpcb *inp, uint16_t keyid);
+extern int sctp_delete_sharedkey(struct sctp_tcb *stcb, uint16_t keyid);
+extern int sctp_delete_sharedkey_ep(struct sctp_inpcb *inp, uint16_t keyid);
+extern int sctp_auth_setactivekey(struct sctp_tcb *stcb, uint16_t keyid);
+extern int sctp_auth_setactivekey_ep(struct sctp_inpcb *inp, uint16_t keyid);
+extern int sctp_deact_sharedkey(struct sctp_tcb *stcb, uint16_t keyid);
+extern int sctp_deact_sharedkey_ep(struct sctp_inpcb *inp, uint16_t keyid);
+
+extern void sctp_auth_get_cookie_params(struct sctp_tcb *stcb, struct mbuf *m,
+    uint32_t offset, uint32_t length);
+extern void sctp_fill_hmac_digest_m(struct mbuf *m, uint32_t auth_offset,
+    struct sctp_auth_chunk *auth, struct sctp_tcb *stcb, uint16_t key_id);
+extern struct mbuf *sctp_add_auth_chunk(struct mbuf *m, struct mbuf **m_end,
+    struct sctp_auth_chunk **auth_ret, uint32_t *offset,
+    struct sctp_tcb *stcb, uint8_t chunk);
+extern int sctp_handle_auth(struct sctp_tcb *stcb, struct sctp_auth_chunk *ch,
+    struct mbuf *m, uint32_t offset);
+extern void sctp_notify_authentication(struct sctp_tcb *stcb,
+    uint32_t indication, uint16_t keyid, uint16_t alt_keyid, int so_locked);
+extern int sctp_validate_init_auth_params(struct mbuf *m, int offset,
+    int limit);
+extern void sctp_initialize_auth_params(struct sctp_inpcb *inp,
+    struct sctp_tcb *stcb);
+
+/* test functions */
+#ifdef SCTP_HMAC_TEST
+extern void sctp_test_hmac_sha1(void);
+extern void sctp_test_authkey(void);
+#endif
+#endif /* __SCTP_AUTH_H__ */
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.c b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.c
new file mode 100644
index 0000000..2274f8c
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.c
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#endif
+
+#ifdef SCTP_USE_NSS_SHA1
+#include <netinet/sctp_nss_sha1.h>
+
+void
+SCTP_NSS_SHA1_Init(struct sha1_context *ctx)
+{
+	ctx->pk11_ctx = PK11_CreateDigestContext(SEC_OID_SHA1);
+	PK11_DigestBegin(ctx->pk11_ctx);
+}
+
+void
+SCTP_NSS_SHA1_Update(struct sha1_context *ctx, const unsigned char *ptr, int siz)
+{
+	PK11_DigestOp(ctx->pk11_ctx, ptr, siz);
+}
+
+void
+SCTP_NSS_SHA1_Final(unsigned char *digest, struct sha1_context *ctx)
+{
+	unsigned int output_len = 0;
+	PK11_DigestFinal(ctx->pk11_ctx, digest, &output_len, sizeof(digest));
+	PK11_DestroyContext(ctx->pk11_ctx, PR_TRUE);
+}
+#endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.h
new file mode 100644
index 0000000..85e721d
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_nss_sha1.h
@@ -0,0 +1,64 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#endif
+
+#ifndef __SCTP_NSS_SHA1_h__
+#define __SCTP_NSS_SHA1_h__
+
+#ifdef __Userspace_os_Darwin
+#define __APPLE__
+#endif
+
+#include <sys/types.h>
+#include <pk11pub.h>
+
+#ifdef __Userspace_os_Darwin
+#undef __APPLE__
+#endif
+
+struct sha1_context {
+	struct PK11Context *pk11_ctx;
+};   // Opaque structure.
+
+typedef struct sha1_context SHA1_CTX;
+
+#if defined(_KERNEL) || defined(__Userspace__)
+#define SHA1_Init SCTP_NSS_SHA1_Init
+#define SHA1_Update SCTP_NSS_SHA1_Update
+#define SHA1_Final SCTP_NSS_SHA1_Final
+
+#endif				/* _KERNEL */
+#endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h
new file mode 100644
index 0000000..66e6e82
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#endif
+
+#ifndef __SCTP_OPENSSL_SHA1_h__
+#define __SCTP_OPENSSL_SHA1_h__
+
+#include <openssl/md5.h>
+#include <openssl/sha.h>
+/* libssl-dev calls this SHA_CTX, but it's refered to as SHA1_CTX within the
+ *  SCTP stack code so here we typedef (or macro?) to equate the two.
+ */
+typedef SHA_CTX SHA1_CTX;
+
+#endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os.h
new file mode 100644
index 0000000..a315f72
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os.h
@@ -0,0 +1,95 @@
+/*-
+ * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: head/sys/netinet/sctp_os.h 235828 2012-05-23 11:26:28Z tuexen $");
+#endif
+
+#ifndef _NETINET_SCTP_OS_H_
+#define _NETINET_SCTP_OS_H_
+
+/*
+ * General kernel memory allocation:
+ *  SCTP_MALLOC(element, type, size, name)
+ *  SCTP_FREE(element)
+ * Kernel memory allocation for "soname"- memory must be zeroed.
+ *  SCTP_MALLOC_SONAME(name, type, size)
+ *  SCTP_FREE_SONAME(name)
+ */
+
+/*
+ * Zone(pool) allocation routines: MUST be defined for each OS.
+ *  zone = zone/pool pointer.
+ *  name = string name of the zone/pool.
+ *  size = size of each zone/pool element.
+ *  number = number of elements in zone/pool.
+ *  type = structure type to allocate
+ *
+ * sctp_zone_t
+ * SCTP_ZONE_INIT(zone, name, size, number)
+ * SCTP_ZONE_GET(zone, type)
+ * SCTP_ZONE_FREE(zone, element)
+ * SCTP_ZONE_DESTROY(zone)
+ */
+
+#if defined(__FreeBSD__)
+#include <netinet/sctp_os_bsd.h>
+#else
+#define MODULE_GLOBAL(_B) (_B)
+#endif
+
+#if defined(__Userspace__)
+#include <netinet/sctp_os_userspace.h>
+#endif
+
+#if defined(__APPLE__)
+#undef __APPLE__
+// #include <netinet/sctp_os_macosx.h>
+#endif
+
+#if defined(__Panda__)
+#include <ip/sctp/sctp_os_iox.h>
+#endif
+
+#if defined(__Windows__)
+#include <netinet/sctp_os_windows.h>
+#endif
+
+/* All os's must implement this address gatherer. If
+ * no VRF's exist, then vrf 0 is the only one and all
+ * addresses and ifn's live here.
+ */
+#define SCTP_DEFAULT_VRF 0
+void sctp_init_vrf_list(int vrfid);
+
+#endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os_userspace.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os_userspace.h
new file mode 100644
index 0000000..7e977f7
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_os_userspace.h
@@ -0,0 +1,1164 @@
+/*-
+ * 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(__Userspace_os_Windows)
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <ws2ipdef.h>
+#include <ws2def.h>
+#include <iphlpapi.h>
+#include <Mswsock.h>
+#include <Windows.h>
+#include "user_environment.h"
+typedef CRITICAL_SECTION userland_mutex_t;
+#if WINVER < 0x0600
+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;
+#define InitializeConditionVariable(cond) InitializeXPConditionVariable(cond)
+#define DeleteConditionVariable(cond) DeleteXPConditionVariable(cond)
+#define SleepConditionVariableCS(cond, mtx, time) SleepXPConditionVariable(cond, mtx)
+#define WakeAllConditionVariable(cond) WakeAllXPConditionVariable(cond)
+#else
+#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
+#define uint64_t   unsigned __int64
+#define u_long     unsigned __int64
+#define u_int      unsigned __int32
+#define uint32_t   unsigned __int32
+#define u_int32_t  unsigned __int32
+#define int32_t	   __int32
+#define int16_t	   __int16
+#define uint16_t   unsigned __int16
+#define u_int16_t  unsigned __int16
+#define uint8_t    unsigned __int8
+#define u_int8_t   unsigned __int8
+#define int8_t     __int8
+#define u_char     unsigned char
+#define n_short    unsigned __int16
+#define u_short    unsigned __int16
+#define ssize_t    __int64
+#define size_t     __int32
+#define in_addr_t  unsigned __int32
+#define in_port_t  unsigned __int16
+#define n_time     unsigned __int32
+#define sa_family_t unsigned __int8
+#define IFNAMSIZ   64
+#define __func__	__FUNCTION__
+
+#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 getifaddrs(interfaces)  (int)Win_getifaddrs(interfaces)
+#define if_nametoindex(x) (int)win_if_nametoindex(x)
+
+#define bzero(buf, len) memset(buf, 0, len)
+#define bcopy(srcKey, dstKey, len) memcpy(dstKey, srcKey, len)
+#define snprintf(data, size, format, name) _snprintf_s(data, size, _TRUNCATE, format, name)
+#define inline __inline
+#define __inline__ __inline
+#define random() rand()
+#define srandom(s) srand(s)
+#define	MSG_EOR		0x8		/* data completes record */
+#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking */
+
+#ifdef CMSG_DATA
+#undef CMSG_DATA
+#endif
+#define CMSG_DATA(x) WSA_CMSG_DATA(x)
+#define CMSG_ALIGN(x) WSA_CMSGDATA_ALIGN(x)
+#if WINVER < 0x0600
+#define CMSG_FIRSTHDR(x) WSA_CMSG_FIRSTHDR(x)
+#define CMSG_NXTHDR(x, y) WSA_CMSG_NXTHDR(x, y)
+#define CMSG_SPACE(x) WSA_CMSG_SPACE(x)
+#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 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)
+
+#define BIG_ENDIAN 1
+#define LITTLE_ENDIAN 0
+#ifdef WORDS_BIGENDIAN
+#define BYTE_ORDER BIG_ENDIAN
+#else
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
+
+struct iovec {
+	ULONG len;
+	CHAR FAR *buf;
+};
+
+#define iov_base buf
+#define iov_len	len
+
+struct ifa_msghdr {
+	unsigned __int16 ifam_msglen;
+	unsigned char    ifam_version;
+	unsigned char    ifam_type;
+	__int32          ifam_addrs;
+	__int32          ifam_flags;
+	unsigned __int16 ifam_index;
+	__int32          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;
+};
+
+struct ifreq {
+	char    ifr_name[16];
+	union {
+		struct sockaddr ifru_addr;
+		struct sockaddr ifru_dstaddr;
+		struct sockaddr ifru_broadaddr;
+		short  ifru_flags;
+		int ifru_metric;
+		int ifru_mtu;
+		int ifru_phys;
+		int ifru_media;
+		int    ifru_intval;
+		char*  ifru_data;
+		struct ifdevmtu ifru_devmtu;
+		struct ifkpi  ifru_kpi;
+		unsigned __int32 ifru_wake_flags;
+	} ifr_ifru;
+#define ifr_addr        ifr_ifru.ifru_addr
+#define ifr_dstaddr     ifr_ifru.ifru_dstaddr
+#define ifr_broadaddr   ifr_ifru.ifru_broadaddr
+#define ifr_flags       ifr_ifru.ifru_flags[0]
+#define ifr_prevflags   ifr_ifru.ifru_flags[1]
+#define ifr_metric      ifr_ifru.ifru_metric
+#define ifr_mtu         ifr_ifru.ifru_mtu
+#define ifr_phys        ifr_ifru.ifru_phys
+#define ifr_media       ifr_ifru.ifru_media
+#define ifr_data        ifr_ifru.ifru_data
+#define ifr_devmtu      ifr_ifru.ifru_devmtu
+#define ifr_intval      ifr_ifru.ifru_intval
+#define ifr_kpi         ifr_ifru.ifru_kpi
+#define ifr_wake_flags  ifr_ifru.ifru_wake_flags
+};
+
+/*#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 {
+	unsigned __int16 uh_sport;
+	unsigned __int16 uh_dport;
+	unsigned __int16 uh_ulen;
+	unsigned __int16 uh_sum;
+};
+
+#else /* !defined(Userspace_os_Windows) */
+#include <sys/cdefs.h> /* needed? added from old __FreeBSD__ */
+#include <sys/socket.h>
+#if defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD)
+#include <pthread.h>
+#endif
+typedef pthread_mutex_t userland_mutex_t;
+typedef pthread_cond_t userland_cond_t;
+typedef pthread_t userland_thread_t;
+#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(__Userspace_os_FreeBSD)
+struct mtx {int dummy;};
+struct selinfo {int dummy;};
+struct sx {int dummy;};
+#endif
+
+#include <stdio.h>
+#include <string.h>
+/* #include <sys/param.h>  in FreeBSD defines MSIZE */
+/* #include <sys/ktr.h> */
+/* #include <sys/systm.h> */
+#if defined(__Userspace_os_Windows)
+#include <user_queue.h>
+#else
+#include <sys/queue.h>
+#endif
+/* #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 <sys/jail.h> */
+/* #include <sys/sysctl.h> */
+#include <user_atomic.h>
+#include <user_environment.h>
+#include <user_malloc.h>
+#include <user_mbuf.h>
+#include "user_socketvar.h" /* MALLOC_DECLARE's M_PCB. Replacement for sys/socketvar.h */
+/* #include <sys/uio.h> */
+/* #include <sys/lock.h> */
+#if defined(__FreeBSD__) && __FreeBSD_version > 602000
+#include <sys/rwlock.h>
+#endif
+/* #include <sys/kthread.h> */
+#if defined(__FreeBSD__) && __FreeBSD_version > 602000
+#include <sys/priv.h>
+#endif
+/* #include <sys/random.h> */
+/* #include <sys/limits.h> */
+/* #include <machine/cpu.h> */
+
+#if defined(__Userspace_os_Darwin)
+/* was a 0 byte file.  needed for structs if_data(64) and net_event_data */
+#include <net/if_var.h>
+#endif
+#if defined(__Userspace_os_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(__Userspace_os_Windows)
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.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(__Userspace_os_Windows)
+#include <ifaddrs.h>
+
+/* for ioctl */
+#include <sys/ioctl.h>
+
+/* for close, etc. */
+#include <unistd.h>
+#endif
+
+/* lots of errno's used and needed in userspace */
+
+/* for offsetof */
+#include <stddef.h>
+
+#if defined(SCTP_PROCESS_LEVEL_LOCKS) && !defined(__Userspace_os_Windows)
+/* 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(__Userspace_os_FreeBSD)
+#include <sys/domain.h>
+#endif
+#ifdef IPSEC
+#include <netipsec/ipsec6.h>
+#endif
+#if !defined(__Userspace_os_Windows)
+#include <netinet/ip6.h>
+#include <netinet/icmp6.h>
+#endif
+#if defined(__Userspace_os_Linux) || defined(__Userspace_os_Darwin) || defined(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD) ||defined(__Userspace_os_Windows)
+#include "user_ip6_var.h"
+#else
+#include <netinet6/ip6_var.h>
+#endif
+#if defined(__Userspace_os_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
+
+#if __FreeBSD_version >= 700000
+#include <netinet/ip_options.h>
+#endif
+
+#define SCTP_PRINTF(...)                                  \
+	if (SCTP_BASE_VAR(debug_printf)) {                \
+		SCTP_BASE_VAR(debug_printf)(__VA_ARGS__); \
+	}
+
+#if defined(__FreeBSD__)
+#ifndef in6pcb
+#define in6pcb		inpcb
+#endif
+#endif
+/* 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(__Userspace_os_Darwin)
+#define USER_ADDR_NULL	(NULL)		/* FIX ME: temp */
+#endif
+
+#if defined(SCTP_DEBUG)
+#include <netinet/sctp_constants.h>
+#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(__Userspace_os_Windows)
+#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
+
+/* global struct ifaddrs used in sctp_init_ifns_for_vrf getifaddrs call
+ *  but references to fields are needed to persist as the vrf is queried.
+ *  getifaddrs allocates memory that needs to be freed with a freeifaddrs
+ *  call; this global is used to call freeifaddrs upon in sctp_pcb_finish
+ */
+extern struct ifaddrs *g_interfaces;
+
+
+/*
+ * __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
+
+#define sctp_get_tick_count() (ticks)
+
+/* The packed define for 64 bit platforms */
+#if !defined(__Userspace_os_Windows)
+#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); \
+                                  }
+
+/* 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) 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);
+	rt = NULL;
+}
+#define rtfree(arg1) sctp_userspace_rtfree(arg1)
+
+
+/*************************/
+/*      MTU              */
+/*************************/
+int sctp_userspace_get_mtu_from_ifn(uint32_t if_index, int af);
+
+#define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) sctp_userspace_get_mtu_from_ifn(ifn_index, af)
+
+#define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
+
+#define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn)  sctp_userspace_get_mtu_from_ifn(if_nametoindex(((struct ifaddrs *) (sctp_ifn))->ifa_name), AF_INET)
+
+#define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
+                                              if (rt != NULL) \
+                                                 rt->rt_rmx.rmx_mtu = mtu; \
+                                           } while(0)
+
+/* (de-)register interface event notifications */
+#define SCTP_REGISTER_INTERFACE(ifhandle, af)
+#define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
+
+
+/*************************/
+/* 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)
+/* UDP __Userspace__ - dummy definition */
+#define SCTP_ENABLE_UDP_CSUM(m) m=m
+/* BSD definition */
+/* #define SCTP_ENABLE_UDP_CSUM(m) do { \ */
+/*                                         m->m_pkthdr.csum_flags = CSUM_UDP; \ */
+/*                                         m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \ */
+/*                                 } while (0) */
+
+#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 /* As done for __Windows__ */
+#define IPv6_HOP_LIMIT 128
+
+/* is the endpoint v6only? */
+#define SCTP_IPV6_V6ONLY(inp)	(((struct inpcb *)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)
+/* 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
+
+/* Future zero copy wakeup/send  function */
+#define SCTP_ZERO_COPY_EVENT(inp, so)
+/* This is re-pulse ourselves for sendbuf */
+#define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
+
+
+/*
+ * SCTP AUTH
+ */
+/* USE_SCTP_SHA1 is defined if you need sctp_sha1.[ch].  SHA1_* functions are defined
+ *  there.  On Linux, they are also defined in libcrypto.a once you install
+ *  the libssl-dev package (on Ubuntu, at least).
+ */
+/* #define USE_SCTP_SHA1 */
+
+/* #define HAVE_SHA2 sha2.h exists on Linux? */
+
+
+#define SCTP_READ_RANDOM(buf, len)	read_random(buf, len)
+
+
+#include <netinet/sctp_sha1.h>
+#if 0 /*this was old _KERNEL code... */
+#include <crypto/sha1.h>
+/* map standard crypto API names */
+#define SHA1_Init	SHA1Init
+#define SHA1_Update	SHA1Update
+#define SHA1_Final(x,y)	SHA1Final((caddr_t)x, y)
+#endif
+
+#if defined(HAVE_SHA2)
+#include <crypto/sha2/sha2.h>
+#endif
+#if 0
+/*  going to have to port so generic across OS's... */
+#if 1 /* openssl header files on FreeBSD 6.3 on Emulab and libssl-dev for Ubuntu */
+#include <openssl/md5.h>
+#include <openssl/sha.h>
+/* libssl-dev calls this SHA_CTX, but it's refered to as SHA1_CTX within the
+ *  SCTP stack code so here we typedef (or macro?) to equate the two.
+ */
+typedef SHA_CTX SHA1_CTX;
+
+#else /* only _KERNEL? */
+
+#include <sys/md5.h>
+/* map standard crypto API names */
+#define MD5_Init	MD5Init
+#define MD5_Update	MD5Update
+#define MD5_Final	MD5Final
+#endif
+#endif
+
+
+/* start OOTB only stuff */
+
+
+/* TODO IFT_LOOP is in net/if_types.h on Linux */
+#define IFT_LOOP 0x18
+
+/* sctp_pcb.h */
+/* typedef int SHA1_CTX; */
+/* typedef int MD5_CTX; */
+#ifdef HAVE_SHA2
+typedef int SHA256_CTX;
+typedef int SHA384_CTX;
+typedef int SHA512_CTX;
+#endif
+
+#if defined(__Userspace_os_Windows)
+#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;
+#endif
+	uint8_t sconn_family;
+	uint16_t sconn_port;
+	void *sconn_addr;
+};
+
+/*
+ * 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, stcb, vrf_id) sctp_userspace_ip_output(&result, o_pak, ro, stcb, 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, stcb, vrf_id) sctp_userspace_ip6_output(&result, o_pak, ro, stcb, 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 in6pcb *)(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(__Userspace_os_FreeBSD) || defined(__Userspace_os_OpenBSD)
+/* stolen from /usr/include/sys/socket.h */
+#define CMSG_ALIGN(n)   _ALIGN(n)
+#elif defined(__Userspace_os_Darwin)
+#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__ , __FUNCTION__); \
+		} 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(__Userspace_os_Linux)
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar)             \
+         for ((var) = ((head)->tqh_first);                     \
+              (var) && ((tvar) = TAILQ_NEXT((var), field), 1); \
+              (var) = (tvar))
+
+#define LIST_FOREACH_SAFE(var, head, field, tvar)              \
+         for ((var) = ((head)->lh_first);                      \
+              (var) && ((tvar) = LIST_NEXT((var), field), 1);  \
+              (var) = (tvar))
+#endif
+#endif
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_sha1.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_sha1.h
new file mode 100644
index 0000000..4000e41
--- /dev/null
+++ b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_sha1.h
@@ -0,0 +1,103 @@
+/*-
+ * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
+ * Copyright (c) 2008-2012, by Michael Tuexen. 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.
+ */
+
+#ifdef __FreeBSD__
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#endif
+
+
+#ifndef __SCTP_SHA1_h__
+#define __SCTP_SHA1_h__
+
+#include <sys/types.h>
+#ifdef SCTP_USE_NSS_SHA1
+#include <netinet/sctp_nss_sha1.h>
+#elif SCTP_USE_OPENSSL_SHA1
+#include <netinet/sctp_openssl_sha1.h>
+#else  // USE_SCTP_SHA1
+struct sha1_context {
+	unsigned int A;
+	unsigned int B;
+	unsigned int C;
+	unsigned int D;
+	unsigned int E;
+	unsigned int H0;
+	unsigned int H1;
+	unsigned int H2;
+	unsigned int H3;
+	unsigned int H4;
+	unsigned int words[80];
+	unsigned int TEMP;
+	/* block I am collecting to process */
+	char sha_block[64];
+	/* collected so far */
+	int how_many_in_block;
+	unsigned int running_total;
+};
+typedef struct sha1_context SHA1_CTX;
+
+#define F1(B,C,D) (((B & C) | ((~B) & D)))	/* 0  <= t <= 19 */
+#define F2(B,C,D) (B ^ C ^ D)	/* 20 <= t <= 39 */
+#define F3(B,C,D) ((B & C) | (B & D) | (C & D))	/* 40 <= t <= 59 */
+#define F4(B,C,D) (B ^ C ^ D)	/* 600 <= t <= 79 */
+
+/* circular shift */
+#define CSHIFT(A,B) ((B << A) | (B >> (32-A)))
+
+#define K1 0x5a827999		/* 0  <= t <= 19 */
+#define K2 0x6ed9eba1		/* 20 <= t <= 39 */
+#define K3 0x8f1bbcdc		/* 40 <= t <= 59 */
+#define K4 0xca62c1d6		/* 60 <= t <= 79 */
+
+#define H0INIT 0x67452301
+#define H1INIT 0xefcdab89
+#define H2INIT 0x98badcfe
+#define H3INIT 0x10325476
+#define H4INIT 0xc3d2e1f0
+
+
+#if (defined(__APPLE__) && defined(KERNEL))
+#ifndef _KERNEL
+#define _KERNEL
+#endif
+#endif
+
+#if defined(_KERNEL) || defined(__Userspace__)
+
+void SHA1_Init(struct sha1_context *);
+void SHA1_Update(struct sha1_context *, const unsigned char *, int);
+void SHA1_Final(unsigned char *, struct sha1_context *);
+
+#endif				/* _KERNEL */
+#endif
+#endif
diff --git a/third_party/usrsctp/usrsctp.gyp b/third_party/usrsctp/usrsctp.gyp
index af82e0d..9285e21 100644
--- a/third_party/usrsctp/usrsctp.gyp
+++ b/third_party/usrsctp/usrsctp.gyp
@@ -2,65 +2,148 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
-  'targets': [
-    {
-      'target_name': 'usrsctplib',
-      'type': 'static_library',
-      'direct_dependent_settings': {
-        'include_dirs': [
-          '.',
-        ],
-        'defines': [
-          'INET',
-          'SCTP_PROCESS_LEVEL_LOCKS',
-          'SCTP_SIMPLE_ALLOCATOR',
-          'STDC_HEADERS',
-          'USE_SCTP_SHA1',
-          '__Userspace__',
-          # 'SCTP_DEBUG', # Uncomment for SCTP debugging.
-        ],
-      },
+  'variables': {
+    'libsctp_target_type%': 'static_library',
+  },
+  'target_defaults': {
+    'defines': [
+      'INET',
+      'SCTP_PROCESS_LEVEL_LOCKS',
+      'SCTP_SIMPLE_ALLOCATOR',
+      '__Userspace__',
+      # 'SCTP_DEBUG', # Uncomment for SCTP debugging.
+    ],
+    'include_dirs': [
+      'overrides/usrsctplib',
+      'overrides/usrsctplib/netinet',
+      'usrsctplib/',
+      'usrsctplib/netinet',
+      'usrsctplib/netinet6',
+    ],
+    'direct_dependent_settings': {
       'include_dirs': [
+        'overrides/usrsctplib',
+        'overrides/usrsctplib/netinet',
         'usrsctplib/',
         'usrsctplib/netinet',
         'usrsctplib/netinet6',
       ],
+    },
+    'conditions': [
+      ['use_openssl==1', {
+        'defines': [
+          'SCTP_USE_OPENSSL_SHA1',
+        ],
+        'dependencies': [
+          '../../third_party/openssl/openssl.gyp:openssl',
+        ],
+      },
+      {  # else use_openssl==0, use NSS.
+        'defines' : [
+          'SCTP_USE_NSS_SHA1',
+        ],
+        'conditions': [
+          ['os_posix == 1 and OS != "mac" and OS != "ios" and OS != "android"', {
+            'dependencies': [
+              '<(DEPTH)/build/linux/system.gyp:ssl',
+            ],
+          }],
+          ['OS == "mac" or OS == "ios" or OS == "win"', {
+            'dependencies': [
+              '<(DEPTH)/third_party/nss/nss.gyp:nspr',
+              '<(DEPTH)/third_party/nss/nss.gyp:nss',
+            ],
+          }],
+        ],
+      }],
+    ],
+  },
+  'targets': [
+    {
+      'target_name': 'usrsctplib',
+      'type': 'static_library',
       'sources': [
+        'overrides/usrsctplib/netinet/sctp_auth.h',
+        'overrides/usrsctplib/netinet/sctp_os.h',
+        'overrides/usrsctplib/netinet/sctp_os_userspace.h',
+        'overrides/usrsctplib/netinet/sctp_nss_sha1.c',
+        'overrides/usrsctplib/netinet/sctp_nss_sha1.h',
+
+        'usrsctplib/usrsctp.h',
+        'usrsctplib/user_atomic.h',
         'usrsctplib/user_environment.c',
+        'usrsctplib/user_environment.h',
+        'usrsctplib/user_inpcb.h',
+        'usrsctplib/user_ip6_var.h',
+        'usrsctplib/user_ip_icmp.h',
         'usrsctplib/user_mbuf.c',
+        'usrsctplib/user_mbuf.h',
+        'usrsctplib/user_queue.h',
         'usrsctplib/user_recv_thread.c',
+        'usrsctplib/user_recv_thread.h',
+        'usrsctplib/user_route.h',
         'usrsctplib/user_sctp_timer_iterate.c',
         'usrsctplib/user_socket.c',
+        'usrsctplib/user_socketvar.h',
+        'usrsctplib/user_uma.h',
         'usrsctplib/netinet/sctp_asconf.c',
+        'usrsctplib/netinet/sctp_asconf.h',
         'usrsctplib/netinet/sctp_auth.c',
         'usrsctplib/netinet/sctp_bsd_addr.c',
+        'usrsctplib/netinet/sctp_bsd_addr.h',
         'usrsctplib/netinet/sctp_callout.c',
+        'usrsctplib/netinet/sctp_callout.h',
         'usrsctplib/netinet/sctp_cc_functions.c',
+        'usrsctplib/netinet/sctp_constants.h',
         'usrsctplib/netinet/sctp_crc32.c',
+        'usrsctplib/netinet/sctp_crc32.h',
+        'usrsctplib/netinet/sctp_hashdriver.h',
         'usrsctplib/netinet/sctp_hashdriver.c',
+        'usrsctplib/netinet/sctp_header.h',
         'usrsctplib/netinet/sctp_indata.c',
+        'usrsctplib/netinet/sctp_indata.h',
         'usrsctplib/netinet/sctp_input.c',
+        'usrsctplib/netinet/sctp_input.h',
+        'usrsctplib/netinet/sctp_lock_userspace.h',
         'usrsctplib/netinet/sctp_output.c',
+        'usrsctplib/netinet/sctp_output.h',
         'usrsctplib/netinet/sctp_pcb.c',
+        'usrsctplib/netinet/sctp_pcb.h',
         'usrsctplib/netinet/sctp_peeloff.c',
-        'usrsctplib/netinet/sctp_sha1.c',
+        'usrsctplib/netinet/sctp_peeloff.h',
         'usrsctplib/netinet/sctp_ss_functions.c',
+        'usrsctplib/netinet/sctp_structs.h',
         'usrsctplib/netinet/sctp_sysctl.c',
-        'usrsctplib/netinet/sctp_userspace.c',
+        'usrsctplib/netinet/sctp_sysctl.h',
         'usrsctplib/netinet/sctp_timer.c',
+        'usrsctplib/netinet/sctp_timer.h',
+        'usrsctplib/netinet/sctp_uio.h',
+        'usrsctplib/netinet/sctp_userspace.c',
         'usrsctplib/netinet/sctp_usrreq.c',
         'usrsctplib/netinet/sctputil.c',
+        'usrsctplib/netinet/sctputil.h',
+        'usrsctplib/netinet/sctp_var.h',
         'usrsctplib/netinet6/sctp6_usrreq.c',
+        'usrsctplib/netinet6/sctp6_var.h',
       ],  # sources
       'conditions': [
+        ['use_openssl==1', {
+          'sources!': [
+            'overrides/usrsctplib/netinet/sctp_nss_sha1.c',
+            'overrides/usrsctplib/netinet/sctp_nss_sha1.h',
+          ],
+          'sources': [
+            'overrides/usrsctplib/netinet/sctp_openssl_sha1.h',
+          ],
+        }],
         ['OS=="linux"', {
           'defines': [
             'HAVE_INET_ADDR',
             'HAVE_SOCKET',
             '__Userspace_os_Linux',
           ],
-          'ccflags!': [ '-Werror', '-Wall' ],
-          'ccflags': [ '-w' ],
+          'cflags!': [ '-Werror', '-Wall' ],
+          'cflags': [ '-w' ],
         }],
         ['OS=="mac"', {
           'defines': [
@@ -77,7 +160,7 @@
           # TODO(ldixon): explore why gyp cflags here does not get picked up.
           'xcode_settings': {
             'OTHER_CFLAGS!': [ '-Werror', '-Wall' ],
-            'OTHER_CFLAGS': [ '-U__APPLE__', '-w' ],
+            'OTHER_CFLAGS': [ '-w' ],
           },
         }],
         ['OS=="win"', {
@@ -85,8 +168,10 @@
             'INET6',
             '__Userspace_os_Windows',
           ],
-          'ccflags!': [ '/W3', '/WX' ],
-          'ccflags': [ '/w' ],
+          'cflags!': [ '/W3', '/WX' ],
+          'cflags': [ '/w' ],
+          # TODO(ldixon) : Remove this disable.
+          'msvs_disabled_warnings': [ 4700, 4013, 4018, 4133, 4267 ],
         }, {  # OS != "win",
           'defines': [
             'NON_WINDOWS_DEFINE',
author	mallinath@chromium.org <mallinath@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>	2013-06-12 17:57:40 +0000
committer	mallinath@chromium.org <mallinath@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>	2013-06-12 17:57:40 +0000
commit	bbba883a09900e829f9d36e401d0a7212b9e33b7 (patch)
tree	bcd866716815c3ab2db10c7184742594c3e18cdd
parent	4999217fea54c8c95ed56f9c8997113960884ddd (diff)
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