1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/*
* Copyright (C) 2009 coresystems GmbH
* written by Patrick Georgi <patrick.georgi@coresystems.de>
* Copyright (C) 2012 Google, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#ifndef __CBFSTOOL_COMMON_H
#define __CBFSTOOL_COMMON_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <assert.h>
/* Endianess */
#include "swab.h"
#ifndef __APPLE__
#define ntohl(x) (is_big_endian() ? (uint32_t)(x) : swab32(x))
#define htonl(x) (is_big_endian() ? (uint32_t)(x) : swab32(x))
#endif
#define ntohll(x) (is_big_endian() ? (uint64_t)(x) : swab64(x))
#define htonll(x) (is_big_endian() ? (uint64_t)(x) : swab64(x))
int is_big_endian(void);
/* Message output */
extern int verbose;
#define ERROR(...) { fprintf(stderr, "E: " __VA_ARGS__); }
#define WARN(...) { fprintf(stderr, "W: " __VA_ARGS__); }
#define LOG(...) { fprintf(stderr, __VA_ARGS__); }
#define INFO(...) { if (verbose > 0) fprintf(stderr, "INFO: " __VA_ARGS__); }
#define DEBUG(...) { if (verbose > 1) fprintf(stderr, "DEBUG: " __VA_ARGS__); }
/* Helpers */
#define ARRAY_SIZE(a) (int)(sizeof(a) / sizeof((a)[0]))
#define ALIGN(val, by) (((val) + (by)-1)&~((by)-1))
#define MAX(x, y) ((x) > (y) ? (x) : (y))
#define MIN(x, y) ((x) < (y) ? (x) : (y))
#define IS_TOP_ALIGNED_ADDRESS(x) ((uint32_t)(x) > 0x80000000)
#define unused __attribute__((unused))
static inline uint32_t align_up(uint32_t value, uint32_t align)
{
if (value % align)
value += align - (value % align);
return value;
}
/* Buffer and file I/O */
struct buffer {
char *name;
char *data;
size_t offset;
size_t size;
};
static inline void *buffer_get(const struct buffer *b)
{
return b->data;
}
static inline size_t buffer_size(const struct buffer *b)
{
return b->size;
}
/*
* Shrink a buffer toward the beginning of its previous space.
* Afterward, buffer_delete() remains the means of cleaning it up. */
static inline void buffer_set_size(struct buffer *b, size_t size)
{
b->size = size;
}
/* Initialize a buffer with the given constraints. */
static inline void buffer_init(struct buffer *b, char *name, void *data,
size_t size)
{
b->name = name;
b->data = data;
b->size = size;
}
/* Splice a buffer into another buffer. Note that it's up to the caller to
* bounds check the offset and size. The resulting buffer is backed by the same
* storage as the original, so although it is valid to buffer_delete() either
* one of them, doing so releases both simultaneously. */
static inline void buffer_splice(struct buffer *dest, const struct buffer *src,
size_t offset, size_t size)
{
dest->name = src->name;
dest->data = src->data + offset;
dest->offset = src->offset + offset;
dest->size = size;
}
/*
* Shallow copy a buffer. To clean up the resources, buffer_delete()
* either one, but not both. */
static inline void buffer_clone(struct buffer *dest, const struct buffer *src)
{
buffer_splice(dest, src, 0, src->size);
}
/*
* Shrink a buffer toward the end of its previous space.
* Afterward, buffer_delete() remains the means of cleaning it up. */
static inline void buffer_seek(struct buffer *b, size_t size)
{
b->offset += size;
b->size -= size;
b->data += size;
}
/* Returns whether the buffer begins with the specified magic bytes. */
static inline bool buffer_check_magic(const struct buffer *b, const char *magic,
size_t magic_len)
{
assert(magic);
return b && b->size >= magic_len &&
memcmp(b->data, magic, magic_len) == 0;
}
/* Creates an empty memory buffer with given size.
* Returns 0 on success, otherwise non-zero. */
int buffer_create(struct buffer *buffer, size_t size, const char *name);
/* Loads a file into memory buffer. Returns 0 on success, otherwise non-zero. */
int buffer_from_file(struct buffer *buffer, const char *filename);
/* Writes memory buffer content into file.
* Returns 0 on success, otherwise non-zero. */
int buffer_write_file(struct buffer *buffer, const char *filename);
/* Destroys a memory buffer. */
void buffer_delete(struct buffer *buffer);
const char *arch_to_string(uint32_t a);
uint32_t string_to_arch(const char *arch_string);
typedef int (*comp_func_ptr) (char *, int, char *, int *);
enum comp_algo { CBFS_COMPRESS_NONE = 0, CBFS_COMPRESS_LZMA = 1 };
comp_func_ptr compression_function(enum comp_algo algo);
uint64_t intfiletype(const char *name);
/* cbfs-mkpayload.c */
int parse_elf_to_payload(const struct buffer *input, struct buffer *output,
enum comp_algo algo);
int parse_fv_to_payload(const struct buffer *input, struct buffer *output,
enum comp_algo algo);
int parse_bzImage_to_payload(const struct buffer *input,
struct buffer *output, const char *initrd,
char *cmdline, enum comp_algo algo);
int parse_flat_binary_to_payload(const struct buffer *input,
struct buffer *output,
uint32_t loadaddress,
uint32_t entrypoint,
enum comp_algo algo);
/* cbfs-mkstage.c */
int parse_elf_to_stage(const struct buffer *input, struct buffer *output,
enum comp_algo algo, uint32_t *location,
const char *ignore_section);
void print_supported_filetypes(void);
/* lzma/lzma.c */
int do_lzma_compress(char *in, int in_len, char *out, int *out_len);
int do_lzma_uncompress(char *dst, int dst_len, char *src, int src_len);
/* xdr.c */
struct xdr {
uint8_t (*get8)(struct buffer *input);
uint16_t (*get16)(struct buffer *input);
uint32_t (*get32)(struct buffer *input);
uint64_t (*get64)(struct buffer *input);
void (*put8)(struct buffer *input, uint8_t val);
void (*put16)(struct buffer *input, uint16_t val);
void (*put32)(struct buffer *input, uint32_t val);
void (*put64)(struct buffer *input, uint64_t val);
};
extern struct xdr xdr_le, xdr_be;
size_t bgets(struct buffer *input, void *output, size_t len);
size_t bputs(struct buffer *b, const void *data, size_t len);
#endif
|
