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fiasco: When generating fiasco image append image data part sections

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Nokia's fiasco-gen writes data part section even if there is only one part.
So do the same thing in 0xFFFF.
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Pali Rohár committed 2021-05-02 17:04:27 +02:00
1 parent df8e50a824
commit 1f466936cb
1 file changed
+35 -1
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src/fiasco.c
+35 -1
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@@ -349,6 +349,7 @@ int fiasco_write_to_file(struct fiasco * fiasco, const char * file) {
const char * str; const char * str;
const char * type; const char * type;
struct image_list * image_list; struct image_list * image_list;
struct image_part * image_part;
struct image * image; struct image * image;
unsigned char buf[4096]; unsigned char buf[4096];
@@ -449,7 +450,7 @@ int fiasco_write_to_file(struct fiasco * fiasco, const char * file) {
checksum = 0x00; checksum = 0x00;
/* number of subsections */ /* number of subsections */
length8 = device_count+1; length8 = device_count+2;
if ( image->version ) if ( image->version )
++length8; ++length8;
if ( image->layout ) if ( image->layout )
@@ -515,6 +516,39 @@ int fiasco_write_to_file(struct fiasco * fiasco, const char * file) {
CHECKSUM(checksum, image->layout, length8); CHECKSUM(checksum, image->layout, length8);
} }
if ( image->parts ) {
/* for each image part append subsection */
for ( image_part = image->parts; image_part; image_part = image_part->next ) {
WRITE_OR_FAIL(file, fd, "4", 1); /* 4 - image data part */
CHECKSUM(checksum, "4", 1);
length = 16 + (image_part->name ? strlen(image_part->name) : 0);
length8 = length <= UINT8_MAX ? length : UINT8_MAX;
WRITE_OR_FAIL(file, fd, &length8, 1);
CHECKSUM(checksum, &length8, 1);
WRITE_OR_FAIL(file, fd, "\x00\x00\x00\x00", 4); /* unknown */
CHECKSUM(checksum, "\x00\x00\x00\x00", 4);
size = htonl(image_part->offset);
WRITE_OR_FAIL(file, fd, &size, 4);
CHECKSUM(checksum, &size, 4);
WRITE_OR_FAIL(file, fd, "\x00\x00\x00\x00", 4); /* unknown */
CHECKSUM(checksum, "\x00\x00\x00\x00", 4);
size = htonl(image_part->size);
WRITE_OR_FAIL(file, fd, &size, 4);
CHECKSUM(checksum, &size, 4);
if ( image_part->name ) {
WRITE_OR_FAIL(file, fd, image_part->name, length-16);
CHECKSUM(checksum, image_part->name, length-16);
}
}
} else {
/* append one image data part subsection */;
WRITE_OR_FAIL(file, fd, "4\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14);
CHECKSUM(checksum, "4\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14);
size = htonl(image->size);
WRITE_OR_FAIL(file, fd, &size, 4);
CHECKSUM(checksum, &size, 4);
}
/* checksum of header */ /* checksum of header */
checksum = 0xFF - checksum; checksum = 0xFF - checksum;
WRITE_OR_FAIL(file, fd, &checksum, 1); WRITE_OR_FAIL(file, fd, &checksum, 1);