Mirrors/m1n1
2
0
Fork 0
mirror of https://github.com/AsahiLinux/m1n1 synced 2024-11-29 01:40:18 +00:00
Code Issues Projects Releases Packages Wiki Activity

payload: Consider an IMG4 blob as the end of payloads

Browse source 
When loading m1n1.bin, SEPFW follows m1n1 and thus will show up at
the payload offset if there are no payloads.

Fixes: #158
Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2022-02-01 15:50:02 +09:00
parent 88874936c6
commit fbc15bd77c
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/payload.c
View file

@ -20,6 +20,7 @@ static const u8 xz_magic[] = {0xfd, '7', 'z', 'X', 'Z', 0x00};
static const u8 fdt_magic[] = {0xd0, 0x0d, 0xfe, 0xed};
static const u8 kernel_magic[] = {'A', 'R', 'M', 0x64}; // at 0x38
static const u8 cpio_magic[] = {'0', '7', '0', '7', '0'}; // '1' or '2' next
static const u8 img4_magic[] = {0x16, 0x04, 'I', 'M', 'G', '4'}; // IA5String 'IMG4'
static const u8 empty[] = {0, 0, 0, 0};
static char expect_compatible[256];
@ -192,7 +193,8 @@ static void *load_one_payload(void *start, size_t size)
return load_kernel(p, size);
} else if (check_var(&p)) {
return p;
} else if (!memcmp(p, empty, sizeof empty)) {
} else if (!memcmp(p, empty, sizeof empty) ||
!memcmp(p + 0x05, img4_magic, sizeof img4_magic)) { // SEPFW after m1n1
printf("No more payloads at %p\n", p);
return NULL;
} else {