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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/linux/netfilter/nf_conntrack_h323_asn1.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/linux/netfilter/nf_conntrack_h323_asn1.h')
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1 files changed, 98 insertions, 0 deletions
diff --git a/kernel/include/linux/netfilter/nf_conntrack_h323_asn1.h b/kernel/include/linux/netfilter/nf_conntrack_h323_asn1.h
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+/****************************************************************************
+ * ip_conntrack_h323_asn1.h - BER and PER decoding library for H.323
+ * conntrack/NAT module.
+ *
+ * Copyright (c) 2006 by Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ *
+ * This library is based on H.225 version 4, H.235 version 2 and H.245
+ * version 7. It is extremely optimized to decode only the absolutely
+ * necessary objects in a signal for Linux kernel NAT module use, so don't
+ * expect it to be a full ASN.1 library.
+ *
+ * Features:
+ *
+ * 1. Small. The total size of code plus data is less than 20 KB (IA32).
+ * 2. Fast. Decoding Netmeeting's Setup signal 1 million times on a PIII 866
+ * takes only 3.9 seconds.
+ * 3. No memory allocation. It uses a static object. No need to initialize or
+ * cleanup.
+ * 4. Thread safe.
+ * 5. Support embedded architectures that has no misaligned memory access
+ * support.
+ *
+ * Limitations:
+ *
+ * 1. At most 30 faststart entries. Actually this is limited by ethernet's MTU.
+ * If a Setup signal contains more than 30 faststart, the packet size will
+ * very likely exceed the MTU size, then the TPKT will be fragmented. I
+ * don't know how to handle this in a Netfilter module. Anybody can help?
+ * Although I think 30 is enough for most of the cases.
+ * 2. IPv4 addresses only.
+ *
+ ****************************************************************************/
+
+#ifndef _NF_CONNTRACK_HELPER_H323_ASN1_H_
+#define _NF_CONNTRACK_HELPER_H323_ASN1_H_
+
+/*****************************************************************************
+ * H.323 Types
+ ****************************************************************************/
+#include <linux/netfilter/nf_conntrack_h323_types.h>
+
+typedef struct {
+ enum {
+ Q931_NationalEscape = 0x00,
+ Q931_Alerting = 0x01,
+ Q931_CallProceeding = 0x02,
+ Q931_Connect = 0x07,
+ Q931_ConnectAck = 0x0F,
+ Q931_Progress = 0x03,
+ Q931_Setup = 0x05,
+ Q931_SetupAck = 0x0D,
+ Q931_Resume = 0x26,
+ Q931_ResumeAck = 0x2E,
+ Q931_ResumeReject = 0x22,
+ Q931_Suspend = 0x25,
+ Q931_SuspendAck = 0x2D,
+ Q931_SuspendReject = 0x21,
+ Q931_UserInformation = 0x20,
+ Q931_Disconnect = 0x45,
+ Q931_Release = 0x4D,
+ Q931_ReleaseComplete = 0x5A,
+ Q931_Restart = 0x46,
+ Q931_RestartAck = 0x4E,
+ Q931_Segment = 0x60,
+ Q931_CongestionCtrl = 0x79,
+ Q931_Information = 0x7B,
+ Q931_Notify = 0x6E,
+ Q931_Status = 0x7D,
+ Q931_StatusEnquiry = 0x75,
+ Q931_Facility = 0x62
+ } MessageType;
+ H323_UserInformation UUIE;
+} Q931;
+
+/*****************************************************************************
+ * Decode Functions Return Codes
+ ****************************************************************************/
+
+#define H323_ERROR_NONE 0 /* Decoded successfully */
+#define H323_ERROR_STOP 1 /* Decoding stopped, not really an error */
+#define H323_ERROR_BOUND -1
+#define H323_ERROR_RANGE -2
+
+
+/*****************************************************************************
+ * Decode Functions
+ ****************************************************************************/
+
+int DecodeRasMessage(unsigned char *buf, size_t sz, RasMessage * ras);
+int DecodeQ931(unsigned char *buf, size_t sz, Q931 * q931);
+int DecodeMultimediaSystemControlMessage(unsigned char *buf, size_t sz,
+ MultimediaSystemControlMessage *
+ mscm);
+
+#endif