version 1.1, 2013/06/28 08:39:41
|
version 1.2, 2013/06/30 22:10:27
|
Line 0
|
Line 1
|
|
#ifndef __APACK_H |
|
#define __APACK_H |
|
|
|
|
|
typedef struct tagRawPacket { |
|
size_t r_len; |
|
uint8_t *r_buf; |
|
uint8_t *r_next; |
|
} rpack_t; |
|
|
|
#define RPACK_FREE(x) (assert((x)), memset((x), 0, sizeof(rpack_t))) |
|
#define RPACK_INIT(x, b, l) do { assert((x)); RPACK_FREE(x); \ |
|
(x)->r_buf = (b); \ |
|
(x)->r_len = (l); \ |
|
(x)->r_next = (x)->r_buf; \ |
|
} while (0) |
|
#define RPACK_SANITY(x) ((x) && (x)->r_buf && (x)->r_next && (x)->r_next >= (x)->r_buf) |
|
#define RPACK_LEN(x) (assert((x)), (x)->r_len) |
|
#define RPACK_REWIND(x) (assert((x)), (x)->r_next = (x)->r_buf) |
|
|
|
#define RPACK_SET_16(x, n) do { assert((x)); \ |
|
*((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ |
|
*((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ |
|
} while (0) |
|
#define RPACK_SET_24(x, n) do { assert((x)); \ |
|
*((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ |
|
*((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ |
|
*((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ |
|
} while (0) |
|
#define RPACK_SET_32(x, n) do { assert((x)); \ |
|
*((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \ |
|
*((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ |
|
*((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ |
|
*((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ |
|
} while (0) |
|
#define RPACK_SET_64(x, n) do { assert((x)); \ |
|
*((uint8_t *) (x) + 7) = *((const uint8_t *) (n) + 7); \ |
|
*((uint8_t *) (x) + 6) = *((const uint8_t *) (n) + 6); \ |
|
*((uint8_t *) (x) + 5) = *((const uint8_t *) (n) + 5); \ |
|
*((uint8_t *) (x) + 4) = *((const uint8_t *) (n) + 4); \ |
|
*((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \ |
|
*((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ |
|
*((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ |
|
*((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ |
|
} while (0) |
|
|
|
#define EXTRACT_LE_8(x) (assert((x)), *(x)) |
|
#define EXTRACT_LE_16(x) (assert((x)), (u_int16_t) ( \ |
|
(uint16_t) *((const uint8_t *) (x) + 1) << 8 | \ |
|
(uint16_t) *((const uint8_t *) (x) + 0) \ |
|
)) |
|
#define EXTRACT_LE_24(x) (assert((x)), (u_int32_t) ( \ |
|
(uint32_t) *((const uint8_t *) (x) + 2) << 16 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 0) \ |
|
)) |
|
#define EXTRACT_LE_32(x) (assert((x)), (u_int32_t) ( \ |
|
(uint32_t) *((const uint8_t *) (x) + 3) << 24 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 2) << 16 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 0) \ |
|
)) |
|
#define EXTRACT_LE_64(x) (assert((x)), (u_int64_t) ( \ |
|
(uint64_t) *((const uint8_t *) (x) + 7) << 56 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 6) << 48 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 5) << 40 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 4) << 32 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 3) << 24 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 2) << 16 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 1) << 8 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 0) \ |
|
)) |
|
|
|
#define EXTRACT_BE_8(x) (assert((x)), *(x)) |
|
#define EXTRACT_BE_16(x) (assert((x)), (u_int16_t) ( \ |
|
(uint16_t) *((const uint8_t *) (x) + 0) << 8 | \ |
|
(uint16_t) *((const uint8_t *) (x) + 1) \ |
|
)) |
|
#define EXTRACT_BE_24(x) (assert((x)), (u_int32_t) ( \ |
|
(uint32_t) *((const uint8_t *) (x) + 0) << 16 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 2) \ |
|
)) |
|
#define EXTRACT_BE_32(x) (assert((x)), (u_int32_t) ( \ |
|
(uint32_t) *((const uint8_t *) (x) + 0) << 24 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 1) << 16 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 2) << 8 | \ |
|
(uint32_t) *((const uint8_t *) (x) + 3) \ |
|
)) |
|
#define EXTRACT_BE_64(x) (assert((x)), (u_int64_t) ( \ |
|
(uint64_t) *((const uint8_t *) (x) + 0) << 56 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 1) << 48 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 2) << 40 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 3) << 32 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 4) << 24 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 5) << 16 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 6) << 8 | \ |
|
(uint64_t) *((const uint8_t *) (x) + 7) \ |
|
)) |
|
|
|
|
|
/* |
|
* rpack_align_and_reserve() - Align & reserve space |
|
* |
|
* @rp = raw buffer |
|
* @siz = need size |
|
* return: NULL error or not enough space, !=NULL next position |
|
*/ |
|
uint8_t *rpack_align_and_reserve(rpack_t * __restrict rp, size_t siz); |
|
|
|
/* |
|
* rpack_create() - Allocate & init raw packet structure |
|
* |
|
* @buf = buffer |
|
* @buflen = length of buffer |
|
* return: NULL error or !=NULL raw packet, should be freed by rpack_destroy() |
|
*/ |
|
rpack_t *rpack_create(void * __restrict buf, size_t buflen); |
|
/* |
|
* rpack_destroy() - Release & free raw packet structure |
|
* |
|
* @rp = raw packet |
|
* return: none |
|
*/ |
|
void rpack_destroy(rpack_t ** __restrict rp); |
|
|
|
/* |
|
* rpack_uint8() - Pack/Unpack 8bit value |
|
* |
|
* @rp = raw buffer |
|
* @n = set value if !=NULL |
|
* return: -1 error or get value |
|
*/ |
|
uint8_t rpack_uint8(rpack_t * __restrict rp, uint8_t * __restrict n); |
|
/* |
|
* rpack_uint16() - Pack/Unpack 16bit value |
|
* |
|
* @rp = raw buffer |
|
* @n = set value if !=NULL |
|
* return: -1 error or get value |
|
*/ |
|
uint16_t rpack_uint16(rpack_t * __restrict rp, uint16_t * __restrict n); |
|
/* |
|
* rpack_uint24() - Pack/Unpack 24bit value |
|
* |
|
* @rp = raw buffer |
|
* @n = set value if !=NULL |
|
* return: -1 error or get value |
|
*/ |
|
uint32_t rpack_uint24(rpack_t * __restrict rp, uint32_t * __restrict n); |
|
/* |
|
* rpack_uint32() - Pack/Unpack 32bit value |
|
* |
|
* @rp = raw buffer |
|
* @n = set value if !=NULL |
|
* return: -1 error or get value |
|
*/ |
|
uint32_t rpack_uint32(rpack_t * __restrict rp, uint32_t * __restrict n); |
|
/* |
|
* rpack_uint64() - Pack/Unpack 64bit value |
|
* |
|
* @rp = raw buffer |
|
* @n = set value if !=NULL |
|
* return: -1 error or get value |
|
*/ |
|
uint64_t rpack_uint64(rpack_t * __restrict rp, uint64_t * __restrict n); |
|
|
|
|
|
#endif |