original files of m241
This commit is contained in:
neelimap
@@ -0,0 +1,464 @@
|
||||
/* iprohc_udp_ip.h - ROHC UDP IP profile head file */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2009 Wind River Systems, Inc.
|
||||
*
|
||||
* The right to copy, distribute or otherwise make use of this software
|
||||
* may be licensed only pursuant to the terms of an applicable Wind River
|
||||
* license agreement. No license to Wind River intellectual property rights
|
||||
* is granted herein. All rights not licensed by Wind River are reserved
|
||||
* by Wind River.
|
||||
*/
|
||||
|
||||
/*
|
||||
modification history
|
||||
--------------------
|
||||
01b,12apr10,ggz Resolve 64bit compiler warnings
|
||||
01a,01dec09,ggz Created
|
||||
*/
|
||||
|
||||
#ifndef IPROHC_UDP_IP_H
|
||||
#define IPROHC_UDP_IP_H
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* INCLUDE FILES
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
#include <ipcom_tags.h>
|
||||
#include <ipcom_type.h>
|
||||
#include <ipcom_list.h>
|
||||
|
||||
|
||||
#include "iprohc_config.h"
|
||||
#include "iprohc_constant.h"
|
||||
#include "iprohc_ip.h"
|
||||
#include "iprohc_coding_util.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* DEFINES
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
#define IPROHC_ENABLE_REENTRANT
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_FMT_UDP_DYNAMIC
|
||||
*===========================================================================
|
||||
* Fomat dynamic chain in a IR/IR-DYN packet
|
||||
*
|
||||
*
|
||||
* UDP header dynamic part
|
||||
* +---+---+---+---+---+---+---+---+
|
||||
* / UDP checksum / 2 octets
|
||||
* +---+---+---+---+---+---+---+---+
|
||||
*/
|
||||
#define IPROHC_FMT_UDP_DYNAMC(udp_context, pointer, has_dynamic, pkt) \
|
||||
{ \
|
||||
pointer -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pointer], &udp_context->checksum, 2); \
|
||||
/* UDP length field is eliminated */ \
|
||||
has_dynamic = IP_TRUE; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_FMT_UDP_STATIC
|
||||
*===========================================================================
|
||||
* Fomat dynamic chain in a IR/IR-DYN packet
|
||||
*
|
||||
* UDP header static part
|
||||
* +---+---+---+---+---+---+---+---+
|
||||
* / UDP source port / 2 octets
|
||||
* +---+---+---+---+---+---+---+---+
|
||||
* / UDP destination port / 2 octets
|
||||
* +---+---+---+---+---+---+---+---+
|
||||
*/
|
||||
#define IPROHC_FMT_UDP_STATIC(udp_context, pointer, pkt) \
|
||||
{ \
|
||||
pointer -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pointer], &udp_context->dst_port, 2); \
|
||||
pointer -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pointer], &udp_context->src_port, 2); \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_UDP_UPDATE_CONTEXT
|
||||
*===========================================================================
|
||||
* Update the UDP context
|
||||
*
|
||||
* Should hdr(UDP Checksum) be nonzero when context(UDP Checksum) is zero,
|
||||
* the header cannot be compressed. It must be sent uncompressed or the context
|
||||
* reinitialized using an IR packet.
|
||||
*/
|
||||
#define IPROHC_UDP_UPDATE_CONTEXT(c_context, udp_context, udp_header, pkt) \
|
||||
{ \
|
||||
Ip_u16 prev_checksum; \
|
||||
prev_checksum = udp_context->checksum; \
|
||||
udp_context->length = udp_header.length; \
|
||||
udp_context->checksum = udp_header.checksum; \
|
||||
udp_context->payload = pkt->tlstart + 8; \
|
||||
\
|
||||
/* Is there checksum usage switch */ \
|
||||
if (((prev_checksum == 0) && (udp_context->checksum != 0)) || \
|
||||
((prev_checksum != 0) && (udp_context->checksum == 0))) \
|
||||
{ \
|
||||
/* Update the state of the context to IR */ \
|
||||
c_context->state = ROHC_COMP_STATE_IR; \
|
||||
c_context->num_ir = 0; \
|
||||
c_context->pkt_type = ROHC_PKT_IR; \
|
||||
} \
|
||||
\
|
||||
if(udp_context->checksum != 0) \
|
||||
udp_context->use_checksum = IP_TRUE; \
|
||||
else \
|
||||
udp_context->use_checksum = IP_FALSE; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_UDP_INIT_CONTEXT
|
||||
*===========================================================================
|
||||
* Set the UDP context
|
||||
*/
|
||||
#define IPROHC_UDP_INIT_CONTEXT(udp_context, udp_header, pkt) \
|
||||
{ \
|
||||
udp_context->src_port = udp_header.src_port; \
|
||||
udp_context->dst_port = udp_header.dst_port; \
|
||||
udp_context->length = udp_header.length; \
|
||||
udp_context->checksum = udp_header.checksum; \
|
||||
udp_context->payload = pkt->tlstart + 8; \
|
||||
\
|
||||
if(udp_context->checksum != 0) \
|
||||
udp_context->use_checksum = IP_TRUE; \
|
||||
else \
|
||||
udp_context->use_checksum = IP_FALSE; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_GET_UDP_STATIC
|
||||
*===========================================================================
|
||||
* GET UDP static header part in a IR packet
|
||||
*/
|
||||
#define IPROHC_GET_UDP_STATIC(udp_context, pointer, pkt) \
|
||||
{ \
|
||||
ipcom_memcpy(&udp_context->src_port, &pkt->data[pointer], 2); \
|
||||
pointer += 2; \
|
||||
ipcom_memcpy(&udp_context->dst_port, &pkt->data[pointer], 2); \
|
||||
pointer += 2; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_GET_UDP_DYNAMIC
|
||||
*===========================================================================
|
||||
* Get UDP dynamic chain in a IR/IP-DYN packet and set the checksum usage
|
||||
* control
|
||||
*/
|
||||
#define IPROHC_GET_UDP_DYNAMIC(udp_context, pointer, pkt) \
|
||||
{ \
|
||||
ipcom_memcpy(&udp_context->checksum, &pkt->data[pointer], 2); \
|
||||
pointer += 2; \
|
||||
if(udp_context->checksum != 0) \
|
||||
udp_context->use_checksum = IP_TRUE; \
|
||||
else \
|
||||
udp_context->use_checksum = IP_FALSE; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_UPD_UDP_DYNAMIC1
|
||||
*===========================================================================
|
||||
* Get UDP dynamic chain in a genral packet
|
||||
*
|
||||
* Checksum controll field can not be updated by general packets.
|
||||
* Only IR packets can update it. Used for general packets.
|
||||
*/
|
||||
#define IPROHC_UPD_UDP_DYNAMIC1(udp_context, pointer, pkt, udp_chksum) \
|
||||
{ \
|
||||
if (udp_context->use_checksum == IP_TRUE) \
|
||||
{ \
|
||||
ipcom_memcpy(&udp_context->checksum, &pkt->data[pointer], 2); \
|
||||
pointer += 2; \
|
||||
} \
|
||||
else udp_context->checksum = 0; \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_UPD_UDP_STATIC
|
||||
*===========================================================================
|
||||
* Update UDP static header
|
||||
*/
|
||||
#define IPROHC_UPD_UDP_STATIC(udp_context, pointer, pkt) \
|
||||
{ \
|
||||
IPROHC_GET_UDP_STATIC(udp_context, pointer, pkt) \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_UPD_UDP_DYNAMIC
|
||||
*===========================================================================
|
||||
* Update UDP dynamic header
|
||||
*/
|
||||
#define IPROHC_UPD_UDP_DYNAMIC(udp_context, pointer, pkt) \
|
||||
{ \
|
||||
IPROHC_GET_UDP_DYNAMIC(udp_context, pointer, pkt) \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_GET_UDP_LENGTH
|
||||
*===========================================================================
|
||||
* Calculate UDP length. Used with IR, IR-DYN packets.
|
||||
*/
|
||||
#define IPROHC_GET_UDP_LENGTH(udp_context, pkt) \
|
||||
{ \
|
||||
udp_context->length = (Ip_u16)(pkt->end - udp_context->payload + 8); \
|
||||
udp_context->length = ipcom_htons(udp_context->length); \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* IPROHC_RECONSTRUCT_UDP
|
||||
*===========================================================================
|
||||
* Reconstruct the packet from UDP context
|
||||
*/
|
||||
#define IPROHC_RECONSTRUCT_UDP(udp_context, pkt) \
|
||||
{ \
|
||||
Ip_u16 data_tmp = 0; \
|
||||
pkt->ipstart -= 2; \
|
||||
if(udp_context->use_checksum == IP_TRUE) \
|
||||
ipcom_memcpy(&pkt->data[pkt->ipstart], &udp_context->checksum, 2); \
|
||||
else \
|
||||
{ \
|
||||
ipcom_memcpy(&pkt->data[pkt->ipstart], &data_tmp, 2); \
|
||||
} \
|
||||
pkt->ipstart -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pkt->ipstart], &udp_context->length, 2); \
|
||||
pkt->ipstart -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pkt->ipstart], &udp_context->dst_port, 2); \
|
||||
pkt->ipstart -= 2; \
|
||||
ipcom_memcpy(&pkt->data[pkt->ipstart], &udp_context->src_port, 2); \
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* Public TYPES
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* LOCAL TYPES
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
typedef struct udp_header_struct
|
||||
{
|
||||
/* Source port */
|
||||
Ip_u16 src_port;
|
||||
|
||||
/* Destination port */
|
||||
Ip_u16 dst_port;
|
||||
|
||||
/* UDP length */
|
||||
Ip_u16 length;
|
||||
|
||||
/* UDP length */
|
||||
Ip_u16 checksum;
|
||||
}udp_header;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* Iprohc_c_udp_context_struct
|
||||
*===========================================================================
|
||||
* ROHC compression UDP profile specific context structure
|
||||
*/
|
||||
typedef struct Iprohc_c_udp_context_struct
|
||||
{
|
||||
/* Source port */
|
||||
Ip_u16 src_port;
|
||||
|
||||
/* Destination port */
|
||||
Ip_u16 dst_port;
|
||||
|
||||
/* UDP length */
|
||||
Ip_u16 length;
|
||||
|
||||
/* UDP checksum */
|
||||
Ip_u16 checksum;
|
||||
|
||||
/* TRUE if checksum is used */
|
||||
Ip_bool use_checksum;
|
||||
|
||||
/* Pointer to UDP payload */
|
||||
int payload;
|
||||
|
||||
/* Statistic information */
|
||||
Ip_u32 udp_pkt_count;
|
||||
}
|
||||
Iprohc_c_udp_context;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* Iprohc_d_udp_context_struct
|
||||
*===========================================================================
|
||||
* ROHC decompression UDP profile specific context structure
|
||||
*/
|
||||
typedef struct Iprohc_d_udp_context_struct
|
||||
{
|
||||
|
||||
/* Source port */
|
||||
Ip_u16 src_port;
|
||||
|
||||
/* Destination port */
|
||||
Ip_u16 dst_port;
|
||||
|
||||
/* UDP length */
|
||||
Ip_u16 length;
|
||||
|
||||
/* UDP checksum */
|
||||
Ip_u16 checksum;
|
||||
|
||||
/* TRUE if checksum is used */
|
||||
Ip_bool use_checksum;
|
||||
|
||||
/* Pointer to UDP payload */
|
||||
int payload;
|
||||
|
||||
/* Statistic information */
|
||||
Ip_u32 udp_pkt_count;
|
||||
}
|
||||
Iprohc_d_udp_context;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* Iprohc_c_udp_ip_context_struct
|
||||
*===========================================================================
|
||||
* ROHC compression UDP_IP profile specific context structure
|
||||
*/
|
||||
typedef struct Iprohc_c_udp_ip_context_struct
|
||||
{
|
||||
/* IPvX specific context */
|
||||
Iprohc_c_ip_context *ip_context;
|
||||
/* UDP sepecific context */
|
||||
Iprohc_c_udp_context *udp_context;
|
||||
}
|
||||
Iprohc_c_udp_ip_context;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
*===========================================================================
|
||||
* Iprohc_d_udp_ip_context_struct
|
||||
*===========================================================================
|
||||
* ROHC decompression UDP_IP profile specific context structure
|
||||
*/
|
||||
|
||||
typedef struct Iprohc_d_udp_ip_context_struct
|
||||
{
|
||||
/* IPvX specific context */
|
||||
Iprohc_d_ip_context *ip_context;
|
||||
/* UDP sepecific context */
|
||||
Iprohc_d_udp_context *udp_context;
|
||||
}
|
||||
Iprohc_d_udp_ip_context;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* GLOBAL FUNCTIONS
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
/* Profile registration/deregistration functions */
|
||||
IP_PUBLIC Ip_err iprohc_profile_udp_ip_register(void);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_deregister(void);
|
||||
|
||||
/* Profile specific compression functions */
|
||||
IP_PUBLIC Ip_err
|
||||
iprohc_udp_ip_c_find_context(Iprohc_compressor *comp, Ipcom_pkt *pkt,
|
||||
Iprohc_c_context **c_context);
|
||||
IP_PUBLIC Iprohc_c_context *
|
||||
iprohc_udp_ip_c_create_context(Iprohc_compressor *comp,
|
||||
Ipcom_pkt *pkt);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_c_del_context(Iprohc_c_context *context);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_c_process_feedback(Iprohc_c_context *context,
|
||||
Ip_u8 *feedback, Ip_u8 size);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_c_compress(Iprohc_c_context *context,
|
||||
Ipcom_pkt *pkt);
|
||||
IP_PUBLIC void iprohc_udp_ip_c_print_context(Iprohc_c_context *context);
|
||||
|
||||
/* Profile specific decompression functions */
|
||||
IP_PUBLIC Iprohc_d_context *
|
||||
iprohc_udp_ip_d_find_context(Iprohc_decompressor *decomp, Ipcom_pkt *pkt);
|
||||
IP_PUBLIC Iprohc_d_context *
|
||||
iprohc_udp_ip_d_create_context(Iprohc_decompressor *decomp,
|
||||
Ipcom_pkt *pkt);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_d_del_context(Iprohc_d_context *context);
|
||||
IP_PUBLIC void iprohc_udp_ip_d_print_context(Iprohc_d_context *context);
|
||||
IP_PUBLIC Ip_err iprohc_udp_ip_d_decompress(Iprohc_d_context *context,
|
||||
Ipcom_pkt *pkt);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
#endif /* #ifndef IPROHC_UDP_IP_H */
|
||||
|
||||
|
||||
|
||||
/*
|
||||
****************************************************************************
|
||||
* END OF FILE
|
||||
****************************************************************************
|
||||
*/
|
||||
|
||||
Reference in New Issue
Block a user