decomp_list_ipv6.c File Reference

ROHC list decompression of IPv6 extension headers. More...

#include "schemes/decomp_list_ipv6.h"
#include "rohc_traces_internal.h"
#include <string.h>

Include dependency graph for decomp_list_ipv6.c:

Functions
static bool	check_ip6_item (const struct list_decomp *const decomp, const size_t index_table)
	Check if the item is correct in IPv6 table. More...
static int	get_ip6_ext_size (const uint8_t *data, const size_t data_len)
	Get the size (in bytes) of the extension. More...
static bool	cmp_ipv6_ext (const struct rohc_list_item *const item, const uint8_t ext_type, const uint8_t *const ext_data, const size_t ext_len)
	Compare two IPv6 items. More...
static bool	create_ip6_item (const uint8_t *const data, const size_t length, const size_t index_table, struct list_decomp *const decomp)
	Create an IPv6 item extension list. More...
static size_t	rohc_build_ip6_extension (const struct list_decomp *const decomp, const uint8_t ip_nh_type, uint8_t *const dest)
	Build an extension list in IPv6 header. More...
void	rohc_decomp_list_ipv6_init (struct list_decomp *const decomp, rohc_trace_callback2_t trace_cb, void *const trace_cb_priv, const int profile_id)
	Init one context for decompressing lists of IPv6 extension headers. More...

Detailed Description

ROHC list decompression of IPv6 extension headers.

Author

Didier Barvaux didie.nosp@m.r@ba.nosp@m.rvaux.nosp@m..org

Function Documentation

check_ip6_item()

static bool check_ip6_item ( const struct list_decomp *const  decomp, const size_t  index_table  )

static

Check if the item is correct in IPv6 table.

Parameters

decomp	The list decompressor
index_table	The index of the item to check the presence

Returns

true if item is found, false if not

cmp_ipv6_ext()

static bool cmp_ipv6_ext ( const struct rohc_list_item *const  item, const uint8_t  ext_type, const uint8_t *const  ext_data, const size_t  ext_len  )

static

Compare two IPv6 items.

Parameters

item	The IPv6 item to compare
ext_type	The IPv6 Next Header type
ext_data	The IPv6 extension context
ext_len	The length (in bytes) of the IPv6 extension context

Returns

true if the two items are equal, false if they are different

create_ip6_item()

static bool create_ip6_item ( const uint8_t *const  data, const size_t  length, const size_t  index_table, struct list_decomp *const  decomp  )

static

Create an IPv6 item extension list.

Parameters

data	The data in the item
length	The length of the item
index_table	The index of the item in based table
decomp	The list decompressor

Returns

true in case of success, false otherwise

get_ip6_ext_size()

static int get_ip6_ext_size ( const uint8_t *  data, const size_t  data_len  )

static

Get the size (in bytes) of the extension.

Parameters

data	The extension data
data_len	The length (in bytes) of the extension data

Returns

The size of the extension in case of success, -1 otherwise

rohc_build_ip6_extension()

static size_t rohc_build_ip6_extension ( const struct list_decomp *const  decomp, const uint8_t  ip_nh_type, uint8_t *const  dest  )

static

Build an extension list in IPv6 header.

Parameters

decomp	The list decompressor
ip_nh_type	The Next Header value of the base IPv6 header
dest	The buffer to store the IPv6 header

Returns

The size of the list

rohc_decomp_list_ipv6_init()

void rohc_decomp_list_ipv6_init	(	struct list_decomp *const	decomp,
		rohc_trace_callback2_t	trace_cb,
		void *const	trace_cb_priv,
		const int	profile_id
	)

Init one context for decompressing lists of IPv6 extension headers.

Parameters

decomp	The context to create
trace_cb	The function to call for printing traces
trace_cb_priv	An optional private context, may be NULL
profile_id	The ID of the associated decompression profile