ROHC compression/decompression library: rohc_decomp_detect

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00001 /*
00002  * Copyright 2011,2012,2013 Didier Barvaux
00003  * Copyright 2007,2009,2010,2013 Viveris Technologies
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Lesser General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2.1 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public
00016  * License along with this library; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 /**
00021  * @file   rohc_decomp_detect_packet.h
00022  * @brief  Functions related to packet detection
00023  * @author Didier Barvaux <didier.barvaux@toulouse.viveris.com>
00024  * @author Didier Barvaux <didier@barvaux.org>
00025  */
00026 
00027 #ifndef ROHC_DECOMP_DETECT_PACKET_H
00028 #define ROHC_DECOMP_DETECT_PACKET_H
00029 
00030 #include "dllexport.h"
00031 
00032 #include <stddef.h>
00033 #include <stdint.h>
00034 #ifdef __KERNEL__
00035 #       include <linux/types.h>
00036 #else
00037 #       include <stdbool.h>
00038 #endif
00039 
00040 
00041 /*
00042  * Function prototypes.
00043  */
00044 
00045 /* ROHC segment */
00046 bool ROHC_EXPORT rohc_decomp_packet_is_segment(const uint8_t *const data)
00047         __attribute__((warn_unused_result, nonnull(1), pure));
00048 bool ROHC_EXPORT rohc_decomp_packet_is_padding(const uint8_t *const data)
00049         __attribute__((warn_unused_result, nonnull(1), pure));
00050 
00051 /* IR packet */
00052 bool ROHC_EXPORT rohc_decomp_packet_is_ir(const uint8_t *const data,
00053                                           const size_t len)
00054         __attribute__((warn_unused_result, nonnull(1), pure));
00055 
00056 /* IR-DYN packet */
00057 bool ROHC_EXPORT rohc_decomp_packet_is_irdyn(const uint8_t *const data,
00058                                              const size_t len)
00059         __attribute__((warn_unused_result, nonnull(1), pure));
00060 
00061 /* UO-0 packet */
00062 bool ROHC_EXPORT rohc_decomp_packet_is_uo0(const uint8_t *const data,
00063                                            const size_t len)
00064         __attribute__((warn_unused_result, nonnull(1), pure));
00065 
00066 /* UO-1* packets */
00067 bool ROHC_EXPORT rohc_decomp_packet_is_uo1(const uint8_t *const data,
00068                                            const size_t len)
00069         __attribute__((warn_unused_result, nonnull(1), pure));
00070 bool ROHC_EXPORT rohc_decomp_packet_is_uo1_ts(const uint8_t *const data,
00071                                               const size_t len)
00072         __attribute__((warn_unused_result, nonnull(1), pure));
00073 
00074 /* UOR-2* packets */
00075 bool ROHC_EXPORT rohc_decomp_packet_is_uor2(const uint8_t *const data,
00076                                             const size_t len)
00077         __attribute__((warn_unused_result, nonnull(1), pure));
00078 bool ROHC_EXPORT rohc_decomp_packet_is_uor2_ts(const uint8_t *const data,
00079                                                const size_t data_len,
00080                                                const size_t large_cid_len)
00081         __attribute__((warn_unused_result, nonnull(1), pure));
00082 
00083 #endif
00084