list_ipv6.c File Reference

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

#include "decomp/schemes/list_ipv6.h"
#include "rohc_traces_internal.h"
#include <string.h>

Include dependency graph for decomp/schemes/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.
static int	get_ip6_ext_size (const unsigned char *data, const size_t data_len)
	Get the size (in bytes) of the extension.
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.
static bool	create_ip6_item (const unsigned char *const data, const size_t length, const size_t index_table, struct list_decomp *const decomp)
	Create an IPv6 item extension list.
static size_t	rohc_build_ip6_extension (const struct list_decomp *const decomp, const uint8_t ip_nh_type, unsigned char *const dest)
	Build an extension list in IPv6 header.
void	rohc_decomp_list_ipv6_new (struct list_decomp *const decomp, rohc_trace_callback_t trace_cb, rohc_trace_callback2_t trace_cb2, void *const trace_cb_priv, const int profile_id)
	Create one context for decompressing lists of IPv6 extension headers.
void	rohc_decomp_list_ipv6_free (struct list_decomp *const decomp)
	Free one context for decompressing lists of IPv6 extension headers.

---

Detailed Description

ROHC list decompression of IPv6 extension headers.

Author:

Didier Barvaux <didier@barvaux.org>

---

Function Documentation

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

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

static bool create_ip6_item	(	const unsigned char *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

static int get_ip6_ext_size	(	const unsigned char *	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

static size_t rohc_build_ip6_extension	(	const struct list_decomp *const	decomp,
		const uint8_t	ip_nh_type,
		unsigned char *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

void rohc_decomp_list_ipv6_free

(

struct list_decomp *const

decomp

)

Free one context for decompressing lists of IPv6 extension headers.

Parameters:

decomp

The context to destroy

void rohc_decomp_list_ipv6_new	(	struct list_decomp *const	decomp,
		rohc_trace_callback_t	trace_cb,
		rohc_trace_callback2_t	trace_cb2,
		void *const	trace_cb_priv,
		const int	profile_id
	)

Create one context for decompressing lists of IPv6 extension headers.

Parameters:

decomp	The context to create
trace_cb	The old function to call for printing traces
trace_cb2	The new 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