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
|
#include <common.h>
#include <amlogic/storage_if.h>
#include <amlogic/instaboot.h>
#include <partition_table.h>
#ifndef PAGE_SIZE
#define PAGE_SIZE 4096
#endif
struct instaboot_header {
char reserved[PAGE_SIZE - 10 -
sizeof(struct new_utsname) - sizeof(u32)];
struct new_utsname uts;
u32 version_code;
char sig[10];
} __attribute__((packed));
static struct instaboot_header ib_header;
int has_instaboot_part(void)
{
struct partitions *part_table = NULL;
int i, name_len, ret = 0;
int part_num = get_partitions_table(&part_table);
name_len = strlen("instaboot");
for (i = 0; i < part_num; i++) {
if (!strncmp(part_table[i].name, "instaboot", name_len)) {
ret = 1;
break;
}
}
return ret;
}
int get_instaboot_header(struct instaboot_info* ib_info)
{
int rc = 0;
u64 partSz = 0;
if (!has_instaboot_part())
return -1;
rc = store_get_partititon_size((unsigned char*)"instaboot", &partSz);
if (rc || !partSz) {
//printf("can not get instaboot part size\n");
return -1;
}
rc = store_read_ops((unsigned char*)"instaboot",
(unsigned char*)&ib_header, 0, PAGE_SIZE);
if (rc) {
printf("read instaboo header error\n");
return -1;
}
if (!strncmp(ib_header.sig, INSTABOOT_SIG, strlen(INSTABOOT_SIG))) {
memcpy(&ib_info->uts, &ib_header.uts, sizeof(struct new_utsname));
ib_info->version_code = ib_header.version_code;
} else {
printf("signature: %s\n", ib_header.sig);
return -1;
}
return 0;
}
|
