The generic decompression context for RFC3095-based profiles. More...
#include <rohc_decomp_rfc3095.h>
Collaboration diagram for rohc_decomp_rfc3095_ctxt:
Data Fields | |
| struct rohc_decomp_rfc3095_changes * | outer_ip_changes |
| Information about the outer IP header. More... | |
| struct rohc_decomp_rfc3095_changes * | inner_ip_changes |
| Information about the inner IP header. More... | |
| rohc_lsb_shift_t | sn_lsb_p |
| struct rohc_lsb_decode * | sn_lsb_ctxt |
| The LSB decoding context for the Sequence Number (SN) More... | |
| struct ip_id_offset_decode * | outer_ip_id_offset_ctxt |
| The IP-ID of the outer IP header. More... | |
| struct ip_id_offset_decode * | inner_ip_id_offset_ctxt |
| The IP-ID of the inner IP header. More... | |
| struct list_decomp | list_decomp1 |
| The list decompressor of the outer IP header. More... | |
| struct list_decomp | list_decomp2 |
| The list decompressor of the inner IP header. More... | |
| int | multiple_ip |
| Whether the decompressed packet contains a 2nd IP header. More... | |
| unsigned short | next_header_proto |
| The IP protocol ID of the protocol the context is able to decompress. More... | |
| unsigned int | next_header_len |
| The length of the next header. More... | |
| int(* | parse_static_next_hdr )(const struct rohc_decomp_ctxt *const context, const uint8_t *packet, size_t length, struct rohc_extr_bits *const bits) |
| The handler used to parse the static part of the next header in the ROHC packet. More... | |
| int(* | parse_dyn_next_hdr )(const struct rohc_decomp_ctxt *const context, const uint8_t *packet, const size_t length, struct rohc_extr_bits *const bits) |
| The handler used to parse the dynamic part of the next header in the ROHC packet. More... | |
| int(* | parse_ext3 )(const struct rohc_decomp_ctxt *const context, const uint8_t *const rohc_data, const size_t rohc_data_len, const rohc_packet_t packet_type, struct rohc_extr_bits *const bits) |
| The handler used to parse the extension 3 of the UO* ROHC packet. More... | |
| int(* | parse_uo_remainder )(const struct rohc_decomp_ctxt *const context, const uint8_t *packet, unsigned int length, struct rohc_extr_bits *const bits) |
| The handler used to parse the tail of the UO* ROHC packet. More... | |
| bool(* | decode_values_from_bits )(const struct rohc_decomp_ctxt *context, const struct rohc_extr_bits *const bits, struct rohc_decoded_values *const decoded) |
| int(* | build_next_header )(const struct rohc_decomp_ctxt *const context, const struct rohc_decoded_values *const decoded, uint8_t *const dest, const unsigned int payload_len) |
| uint8_t(* | compute_crc_static )(const uint8_t *const ip, const uint8_t *const ip2, const uint8_t *const next_header, const rohc_crc_type_t crc_type, const uint8_t init_val, const uint8_t *const crc_table) |
| The handler used to compute the CRC-STATIC value. More... | |
| uint8_t(* | compute_crc_dynamic )(const uint8_t *const ip, const uint8_t *const ip2, const uint8_t *const next_header, const rohc_crc_type_t crc_type, const uint8_t init_val, const uint8_t *const crc_table) |
| The handler used to compute the CRC-DYNAMIC value. More... | |
| void(* | update_context )(struct rohc_decomp_ctxt *const context, const struct rohc_decoded_values *const decoded) |
| void * | specific |
| Profile-specific data. More... | |
Detailed Description
The generic decompression context for RFC3095-based profiles.
The object defines the generic context that manages IP(/nextheader) and IP/IP(/nextheader) packets. nextheader is managed by the profile-specific part of the context.
Field Documentation
| int(* rohc_decomp_rfc3095_ctxt::build_next_header) (const struct rohc_decomp_ctxt *const context, const struct rohc_decoded_values *const decoded, uint8_t *const dest, const unsigned int payload_len) |
The handler used to build the uncompressed next header
| uint8_t(* rohc_decomp_rfc3095_ctxt::compute_crc_dynamic) (const uint8_t *const ip, const uint8_t *const ip2, const uint8_t *const next_header, const rohc_crc_type_t crc_type, const uint8_t init_val, const uint8_t *const crc_table) |
The handler used to compute the CRC-DYNAMIC value.
| uint8_t(* rohc_decomp_rfc3095_ctxt::compute_crc_static) (const uint8_t *const ip, const uint8_t *const ip2, const uint8_t *const next_header, const rohc_crc_type_t crc_type, const uint8_t init_val, const uint8_t *const crc_table) |
The handler used to compute the CRC-STATIC value.
| bool(* rohc_decomp_rfc3095_ctxt::decode_values_from_bits) (const struct rohc_decomp_ctxt *context, const struct rohc_extr_bits *const bits, struct rohc_decoded_values *const decoded) |
The handler used to decode extracted for next header
| struct rohc_decomp_rfc3095_changes* rohc_decomp_rfc3095_ctxt::inner_ip_changes |
Information about the inner IP header.
| struct ip_id_offset_decode* rohc_decomp_rfc3095_ctxt::inner_ip_id_offset_ctxt |
The IP-ID of the inner IP header.
| struct list_decomp rohc_decomp_rfc3095_ctxt::list_decomp1 |
The list decompressor of the outer IP header.
| struct list_decomp rohc_decomp_rfc3095_ctxt::list_decomp2 |
The list decompressor of the inner IP header.
| int rohc_decomp_rfc3095_ctxt::multiple_ip |
Whether the decompressed packet contains a 2nd IP header.
| unsigned int rohc_decomp_rfc3095_ctxt::next_header_len |
The length of the next header.
| unsigned short rohc_decomp_rfc3095_ctxt::next_header_proto |
The IP protocol ID of the protocol the context is able to decompress.
| struct rohc_decomp_rfc3095_changes* rohc_decomp_rfc3095_ctxt::outer_ip_changes |
Information about the outer IP header.
| struct ip_id_offset_decode* rohc_decomp_rfc3095_ctxt::outer_ip_id_offset_ctxt |
The IP-ID of the outer IP header.
| int(* rohc_decomp_rfc3095_ctxt::parse_dyn_next_hdr) (const struct rohc_decomp_ctxt *const context, const uint8_t *packet, const size_t length, struct rohc_extr_bits *const bits) |
The handler used to parse the dynamic part of the next header in the ROHC packet.
| int(* rohc_decomp_rfc3095_ctxt::parse_ext3) (const struct rohc_decomp_ctxt *const context, const uint8_t *const rohc_data, const size_t rohc_data_len, const rohc_packet_t packet_type, struct rohc_extr_bits *const bits) |
The handler used to parse the extension 3 of the UO* ROHC packet.
- Parameters
-
context The decompression context rohc_data The ROHC data to parse rohc_data_len The length of the ROHC data to parse packet_type The type of ROHC packet to parse bits IN: the bits already found in base header OUT: the bits found in the extension header 3
- Returns
- The data length read from the ROHC packet, -2 in case packet must be reparsed, -1 in case of error
| int(* rohc_decomp_rfc3095_ctxt::parse_static_next_hdr) (const struct rohc_decomp_ctxt *const context, const uint8_t *packet, size_t length, struct rohc_extr_bits *const bits) |
The handler used to parse the static part of the next header in the ROHC packet.
| int(* rohc_decomp_rfc3095_ctxt::parse_uo_remainder) (const struct rohc_decomp_ctxt *const context, const uint8_t *packet, unsigned int length, struct rohc_extr_bits *const bits) |
The handler used to parse the tail of the UO* ROHC packet.
| struct rohc_lsb_decode* rohc_decomp_rfc3095_ctxt::sn_lsb_ctxt |
The LSB decoding context for the Sequence Number (SN)
| rohc_lsb_shift_t rohc_decomp_rfc3095_ctxt::sn_lsb_p |
The LSB shift parameter for the Sequence Number (SN)
| void* rohc_decomp_rfc3095_ctxt::specific |
Profile-specific data.
| void(* rohc_decomp_rfc3095_ctxt::update_context) (struct rohc_decomp_ctxt *const context, const struct rohc_decoded_values *const decoded) |
The handler used to update context with decoded next header fields
The documentation for this struct was generated from the following file:
