Annotation of libelwix/inc/elwix/apack.h, revision 1.1.2.5
1.1.2.1 misho 1: #ifndef __APACK_H
2: #define __APACK_H
3:
4:
1.1.2.2 misho 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)
1.1.2.3 misho 18: #define RPACK_LEN(x) (assert((x)), (x)->r_len)
19: #define RPACK_REWIND(x) (assert((x)), (x)->r_next = (x)->r_buf)
20:
1.1.2.4 misho 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:
1.1.2.3 misho 26: #define EXTRACT_LE_8(x) (assert((x)), *(x))
27: #define EXTRACT_LE_16(x) (assert((x)), (u_int16_t) ( \
28: (uint16_t) *((const uint8_t *) (x) + 1) << 8 | \
29: (uint16_t) *((const uint8_t *) (x) + 0) \
30: ))
31: #define EXTRACT_LE_24(x) (assert((x)), (u_int32_t) ( \
32: (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \
33: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
34: (uint32_t) *((const uint8_t *) (x) + 0) \
35: ))
36: #define EXTRACT_LE_32(x) (assert((x)), (u_int32_t) ( \
37: (uint32_t) *((const uint8_t *) (x) + 3) << 24 | \
38: (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \
39: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
40: (uint32_t) *((const uint8_t *) (x) + 0) \
41: ))
42: #define EXTRACT_LE_64(x) (assert((x)), (u_int64_t) ( \
43: (uint64_t) *((const uint8_t *) (x) + 7) << 56 | \
44: (uint64_t) *((const uint8_t *) (x) + 6) << 48 | \
45: (uint64_t) *((const uint8_t *) (x) + 5) << 40 | \
46: (uint64_t) *((const uint8_t *) (x) + 4) << 32 | \
47: (uint64_t) *((const uint8_t *) (x) + 3) << 24 | \
48: (uint64_t) *((const uint8_t *) (x) + 2) << 16 | \
49: (uint64_t) *((const uint8_t *) (x) + 1) << 8 | \
50: (uint64_t) *((const uint8_t *) (x) + 0) \
51: ))
52:
53: #define EXTRACT_BE_8(x) (assert((x)), *(x))
54: #define EXTRACT_BE_16(x) (assert((x)), (u_int16_t) ( \
55: (uint16_t) *((const uint8_t *) (x) + 0) << 8 | \
56: (uint16_t) *((const uint8_t *) (x) + 1) \
57: ))
58: #define EXTRACT_BE_24(x) (assert((x)), (u_int32_t) ( \
59: (uint32_t) *((const uint8_t *) (x) + 0) << 16 | \
60: (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \
61: (uint32_t) *((const uint8_t *) (x) + 2) \
62: ))
63: #define EXTRACT_BE_32(x) (assert((x)), (u_int32_t) ( \
64: (uint32_t) *((const uint8_t *) (x) + 0) << 24 | \
65: (uint32_t) *((const uint8_t *) (x) + 1) << 16 | \
66: (uint32_t) *((const uint8_t *) (x) + 2) << 8 | \
67: (uint32_t) *((const uint8_t *) (x) + 3) \
68: ))
69: #define EXTRACT_BE_64(x) (assert((x)), (u_int64_t) ( \
70: (uint64_t) *((const uint8_t *) (x) + 0) << 56 | \
71: (uint64_t) *((const uint8_t *) (x) + 1) << 48 | \
72: (uint64_t) *((const uint8_t *) (x) + 2) << 40 | \
73: (uint64_t) *((const uint8_t *) (x) + 3) << 32 | \
74: (uint64_t) *((const uint8_t *) (x) + 4) << 24 | \
75: (uint64_t) *((const uint8_t *) (x) + 5) << 16 | \
76: (uint64_t) *((const uint8_t *) (x) + 6) << 8 | \
77: (uint64_t) *((const uint8_t *) (x) + 7) \
78: ))
1.1.2.2 misho 79:
80:
81: /*
82: * rpack_align_and_reserve() - Align & reserve space
83: *
84: * @rp = raw buffer
85: * @siz = need size
86: * return: NULL error or not enough space, !=NULL next position
87: */
88: uint8_t *rpack_align_and_reserve(rpack_t * __restrict rp, size_t siz);
89:
90: /*
91: * rpack_create() - Allocate & init raw packet structure
92: *
93: * @buf = buffer
94: * @buflen = length of buffer
95: * return: NULL error or !=NULL raw packet, should be freed by rpack_destroy()
96: */
97: rpack_t *rpack_create(void * __restrict buf, size_t buflen);
98: /*
99: * rpack_destroy() - Release & free raw packet structure
100: *
101: * @rp = raw packet
102: * return: none
103: */
104: void rpack_destroy(rpack_t ** __restrict rp);
105:
106: /*
107: * rpack_uint8() - Pack/Unpack 8bit value
108: *
109: * @rp = raw buffer
110: * @n = set value if !=NULL
111: * return: -1 error or get value
112: */
113: uint8_t rpack_uint8(rpack_t * __restrict rp, uint8_t * __restrict n);
1.1.2.3 misho 114: /*
115: * rpack_uint16() - Pack/Unpack 16bit value
116: *
117: * @rp = raw buffer
118: * @n = set value if !=NULL
119: * return: -1 error or get value
120: */
121: uint16_t rpack_uint16(rpack_t * __restrict rp, uint16_t * __restrict n);
1.1.2.5 ! misho 122: /*
! 123: * rpack_uint24() - Pack/Unpack 24bit value
! 124: *
! 125: * @rp = raw buffer
! 126: * @n = set value if !=NULL
! 127: * return: -1 error or get value
! 128: */
! 129: uint32_t rpack_uint24(rpack_t * __restrict rp, uint32_t * __restrict n);
! 130: /*
! 131: * rpack_uint32() - Pack/Unpack 32bit value
! 132: *
! 133: * @rp = raw buffer
! 134: * @n = set value if !=NULL
! 135: * return: -1 error or get value
! 136: */
! 137: uint32_t rpack_uint32(rpack_t * __restrict rp, uint32_t * __restrict n);
! 138: /*
! 139: * rpack_uint48() - Pack/Unpack 48bit value
! 140: *
! 141: * @rp = raw buffer
! 142: * @n = set value if !=NULL
! 143: * return: -1 error or get value
! 144: */
! 145: uint64_t rpack_uint48(rpack_t * __restrict rp, uint64_t * __restrict n);
! 146: /*
! 147: * rpack_uint64() - Pack/Unpack 64bit value
! 148: *
! 149: * @rp = raw buffer
! 150: * @n = set value if !=NULL
! 151: * return: -1 error or get value
! 152: */
! 153: uint64_t rpack_uint64(rpack_t * __restrict rp, uint64_t * __restrict n);
1.1.2.2 misho 154:
1.1.2.1 misho 155:
156: #endif
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