Enable SCTP in libjingle.

third_party/usrsctp/overrides/usrsctplib/netinet/sctp_sha1.h

+/*-
+ * 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_SLA1_h__
+#define __SCTP_SLA1_h__
+
+#include <sys/types.h>
+#include <pk11pub.h>
+
+struct sha1_context {
+        struct PK11Context *pk11_ctx;

[juberti, 2013/06/06 15:14:40]

Ryan, will this work on Android? Or do we need to define an OpenSSL variant as
well?

[Ryan Sleevi, 2013/06/06 21:05:19]

usrsctp already has an OpenSSL implementation, hidden behind some #ifdefs -
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/usrsct...

With the right header flipping, you should be able to pull in OpenSSL's version
with minimal changes.

[Mallinath (Gone from Chromium), 2013/06/06 21:27:08]

Didn't we go this route because depending on OpenSSL was bad idea for Chrome.
On 2013/06/06 21:05:19, Ryan Sleevi wrote:

+};   // Opaque structure.
+
+typedef struct sha1_context SHA1_CTX;
+
+#if (defined(__APPLE__) && defined(KERNEL))
+#ifndef _KERNEL
+#define _KERNEL
+#endif
+#endif
+
+#if defined(_KERNEL) || defined(__Userspace__)
+#define SHA1_Init SCTP_SHA1_Init
+#define SHA1_Update SCTP_SHA1_Update
+#define SHA1_Final SCTP_SHA1_Final
+void SCTP_SHA1_Init(struct sha1_context *);
+void SCTP_SHA1_Update(struct sha1_context *, const unsigned char *, int);
+void SCTP_SHA1_Final(unsigned char *, struct sha1_context *);
+
+#endif                          /* _KERNEL */
+#endif