Annotation of libelwix/inc/elwix/apack.h, revision 1.2
1.2 ! misho 1: #ifndef __APACK_H
! 2: #define __APACK_H
! 3:
! 4:
! 5: typedef struct tagRawPacket {
! 6: size_t r_len;
! 7: uint8_t *r_buf;
! 8: uint8_t *r_next;
! 9: } rpack_t;
! 10:
! 11: #define RPACK_FREE(x) (assert((x)), memset((x), 0, sizeof(rpack_t)))
! 12: #define RPACK_INIT(x, b, l) do { assert((x)); RPACK_FREE(x); \
! 13: (x)->r_buf = (b); \
! 14: (x)->r_len = (l); \
! 15: (x)->r_next = (x)->r_buf; \
! 16: } while (0)
! 17: #define RPACK_SANITY(x) ((x) && (x)->r_buf && (x)->r_next && (x)->r_next >= (x)->r_buf)
! 18: #define RPACK_LEN(x) (assert((x)), (x)->r_len)
! 19: #define RPACK_REWIND(x) (assert((x)), (x)->r_next = (x)->r_buf)
! 20:
! 21: #define RPACK_SET_16(x, n) do { assert((x)); \
! 22: *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \
! 23: *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \
! 24: } while (0)
! 25: #define RPACK_SET_24(x, n) do { assert((x)); \
! 26: *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \
! 27: *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \
! 28: *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \
! 29: } while (0)
! 30: #define RPACK_SET_32(x, n) do { assert((x)); \
! 31: *((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \
! 32: *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \
! 33: *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \
! 34: *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \
! 35: } while (0)
! 36: #define RPACK_SET_64(x, n) do { assert((x)); \
! 37: *((uint8_t *) (x) + 7) = *((const uint8_t *) (n) + 7); \
! 38: *((uint8_t *) (x) + 6) = *((const uint8_t *) (n) + 6); \
! 39: *((uint8_t *) (x) + 5) = *((const uint8_t *) (n) + 5); \
! 40: *((uint8_t *) (x) + 4) = *((const uint8_t *) (n) + 4); \
! 41: *((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \
! 42: *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \
! 43: *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \
! 44: *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \
! 45: } while (0)
! 46:
! 47: #define EXTRACT_LE_8(x) (assert((x)), *(x))
! 48: #define EXTRACT_LE_16(x) (assert((x)), (u_int16_t) ( \
! 49: (uint16_t) *((const uint8_t *) (x) + 1) << 8 | \
! 50: (uint16_t) *((const uint8_t *) (x) + 0) \
! 51: ))
! 52: #define EXTRACT_LE_24(x) (assert((x)), (u_int32_t) ( \
! 53: (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \
! 54: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
! 55: (uint32_t) *((const uint8_t *) (x) + 0) \
! 56: ))
! 57: #define EXTRACT_LE_32(x) (assert((x)), (u_int32_t) ( \
! 58: (uint32_t) *((const uint8_t *) (x) + 3) << 24 | \
! 59: (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \
! 60: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
! 61: (uint32_t) *((const uint8_t *) (x) + 0) \
! 62: ))
! 63: #define EXTRACT_LE_64(x) (assert((x)), (u_int64_t) ( \
! 64: (uint64_t) *((const uint8_t *) (x) + 7) << 56 | \
! 65: (uint64_t) *((const uint8_t *) (x) + 6) << 48 | \
! 66: (uint64_t) *((const uint8_t *) (x) + 5) << 40 | \
! 67: (uint64_t) *((const uint8_t *) (x) + 4) << 32 | \
! 68: (uint64_t) *((const uint8_t *) (x) + 3) << 24 | \
! 69: (uint64_t) *((const uint8_t *) (x) + 2) << 16 | \
! 70: (uint64_t) *((const uint8_t *) (x) + 1) << 8 | \
! 71: (uint64_t) *((const uint8_t *) (x) + 0) \
! 72: ))
! 73:
! 74: #define EXTRACT_BE_8(x) (assert((x)), *(x))
! 75: #define EXTRACT_BE_16(x) (assert((x)), (u_int16_t) ( \
! 76: (uint16_t) *((const uint8_t *) (x) + 0) << 8 | \
! 77: (uint16_t) *((const uint8_t *) (x) + 1) \
! 78: ))
! 79: #define EXTRACT_BE_24(x) (assert((x)), (u_int32_t) ( \
! 80: (uint32_t) *((const uint8_t *) (x) + 0) << 16 | \
! 81: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
! 82: (uint32_t) *((const uint8_t *) (x) + 2) \
! 83: ))
! 84: #define EXTRACT_BE_32(x) (assert((x)), (u_int32_t) ( \
! 85: (uint32_t) *((const uint8_t *) (x) + 0) << 24 | \
! 86: (uint32_t) *((const uint8_t *) (x) + 1) << 16 | \
! 87: (uint32_t) *((const uint8_t *) (x) + 2) << 8 | \
! 88: (uint32_t) *((const uint8_t *) (x) + 3) \
! 89: ))
! 90: #define EXTRACT_BE_64(x) (assert((x)), (u_int64_t) ( \
! 91: (uint64_t) *((const uint8_t *) (x) + 0) << 56 | \
! 92: (uint64_t) *((const uint8_t *) (x) + 1) << 48 | \
! 93: (uint64_t) *((const uint8_t *) (x) + 2) << 40 | \
! 94: (uint64_t) *((const uint8_t *) (x) + 3) << 32 | \
! 95: (uint64_t) *((const uint8_t *) (x) + 4) << 24 | \
! 96: (uint64_t) *((const uint8_t *) (x) + 5) << 16 | \
! 97: (uint64_t) *((const uint8_t *) (x) + 6) << 8 | \
! 98: (uint64_t) *((const uint8_t *) (x) + 7) \
! 99: ))
! 100:
! 101:
! 102: /*
! 103: * rpack_align_and_reserve() - Align & reserve space
! 104: *
! 105: * @rp = raw buffer
! 106: * @siz = need size
! 107: * return: NULL error or not enough space, !=NULL next position
! 108: */
! 109: uint8_t *rpack_align_and_reserve(rpack_t * __restrict rp, size_t siz);
! 110:
! 111: /*
! 112: * rpack_create() - Allocate & init raw packet structure
! 113: *
! 114: * @buf = buffer
! 115: * @buflen = length of buffer
! 116: * return: NULL error or !=NULL raw packet, should be freed by rpack_destroy()
! 117: */
! 118: rpack_t *rpack_create(void * __restrict buf, size_t buflen);
! 119: /*
! 120: * rpack_destroy() - Release & free raw packet structure
! 121: *
! 122: * @rp = raw packet
! 123: * return: none
! 124: */
! 125: void rpack_destroy(rpack_t ** __restrict rp);
! 126:
! 127: /*
! 128: * rpack_uint8() - Pack/Unpack 8bit value
! 129: *
! 130: * @rp = raw buffer
! 131: * @n = set value if !=NULL
! 132: * return: -1 error or get value
! 133: */
! 134: uint8_t rpack_uint8(rpack_t * __restrict rp, uint8_t * __restrict n);
! 135: /*
! 136: * rpack_uint16() - Pack/Unpack 16bit value
! 137: *
! 138: * @rp = raw buffer
! 139: * @n = set value if !=NULL
! 140: * return: -1 error or get value
! 141: */
! 142: uint16_t rpack_uint16(rpack_t * __restrict rp, uint16_t * __restrict n);
! 143: /*
! 144: * rpack_uint24() - Pack/Unpack 24bit value
! 145: *
! 146: * @rp = raw buffer
! 147: * @n = set value if !=NULL
! 148: * return: -1 error or get value
! 149: */
! 150: uint32_t rpack_uint24(rpack_t * __restrict rp, uint32_t * __restrict n);
! 151: /*
! 152: * rpack_uint32() - Pack/Unpack 32bit value
! 153: *
! 154: * @rp = raw buffer
! 155: * @n = set value if !=NULL
! 156: * return: -1 error or get value
! 157: */
! 158: uint32_t rpack_uint32(rpack_t * __restrict rp, uint32_t * __restrict n);
! 159: /*
! 160: * rpack_uint64() - Pack/Unpack 64bit value
! 161: *
! 162: * @rp = raw buffer
! 163: * @n = set value if !=NULL
! 164: * return: -1 error or get value
! 165: */
! 166: uint64_t rpack_uint64(rpack_t * __restrict rp, uint64_t * __restrict n);
! 167:
! 168:
! 169: #endif
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