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authorTerry Wilson <twilson@digium.com>2010-06-08 05:29:08 +0000
committerTerry Wilson <twilson@digium.com>2010-06-08 05:29:08 +0000
commit857814f4354fb26255d4d5db6e06e90749e9bad0 (patch)
treeecc27fc0db142ea1cd335a74cd1265f993fecd11 /channels/sip/include/srtp.h
parentebbf166c2d15fd233ee307e760b2a88c46d19f6b (diff)
Add SRTP support for Asterisk
After 5 years in mantis and over a year on reviewboard, SRTP support is finally being comitted. This includes generic CHANNEL dialplan functions that work for getting the status of whether a call has secure media or signaling as defined by the underlying channel technology and for setting whether or not a new channel being bridged to a calling channel should have secure signaling or media. See doc/tex/secure-calls.tex for examples. Original patch by mikma, updated for trunk and revised by me. (closes issue #5413) Reported by: mikma Tested by: twilson, notthematrix, hemanshurpatel Review: https://reviewboard.asterisk.org/r/191/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@268894 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'channels/sip/include/srtp.h')
-rw-r--r--channels/sip/include/srtp.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/channels/sip/include/srtp.h b/channels/sip/include/srtp.h
new file mode 100644
index 000000000..b7a3fc30b
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+++ b/channels/sip/include/srtp.h
@@ -0,0 +1,57 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2006 - 2007, Mikael Magnusson
+ *
+ * Mikael Magnusson <mikma@users.sourceforge.net>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file sip_srtp.h
+ *
+ * \brief SIP Secure RTP (SRTP)
+ *
+ * Specified in RFC 3711
+ *
+ * \author Mikael Magnusson <mikma@users.sourceforge.net>
+ */
+
+#ifndef _SIP_SRTP_H
+#define _SIP_SRTP_H
+
+#include "sdp_crypto.h"
+
+/* SRTP flags */
+#define SRTP_ENCR_OPTIONAL (1 << 1) /* SRTP encryption optional */
+#define SRTP_CRYPTO_ENABLE (1 << 2)
+#define SRTP_CRYPTO_OFFER_OK (1 << 3)
+
+/*! \brief structure for secure RTP audio */
+struct sip_srtp {
+ unsigned int flags;
+ struct sdp_crypto *crypto;
+};
+
+/*!
+ * \brief allocate a sip_srtp structure
+ * \retval a new malloc'd sip_srtp structure on success
+ * \retval NULL on failure
+*/
+struct sip_srtp *sip_srtp_alloc(void);
+
+/*!
+ * \brief free a sip_srtp structure
+ * \param srtp a sip_srtp structure
+*/
+void sip_srtp_destroy(struct sip_srtp *srtp);
+
+#endif /* _SIP_SRTP_H */