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Fix up non-grub iso9660 filesystem, plus correct a thinko where the sense of the existing hfs/ext2 probe functions was inverted

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by default.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>


git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@796 f158a5a8-5612-0410-a976-696ce0be7e32
This commit is contained in:
Mark Cave-Ayland
2010-06-23 20:41:34 +00:00
committed by Mark Cave-Ayland
parent c6a9039103
commit 0dddb61de8
8 changed files with 37 additions and 9 deletions
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9
fs/iso9660/iso9660_fs.c
View File

@@ -152,6 +152,15 @@ static const fs_ops_t iso9660_ops = {
.get_fstype = get_fstype,
};
int
fs_iso9660_probe( int fd, llong offs )
{
if (iso9660_probe(fd, offs))
return 0;
return -1;
}
int fs_iso9660_open(int fd, fs_ops_t *fs)
{
iso9660_VOLUME *volume;

16
fs/iso9660/iso9660_mount.c
View File

@@ -189,6 +189,22 @@ int iso9660_umount(iso9660_VOLUME* volume)
return 0;
}
int iso9660_probe(int fd, llong offset)
{
struct iso_primary_descriptor ipd;
seek_io(fd, 16 * ISOFS_BLOCK_SIZE + offset);
read_io(fd, &ipd, sizeof (ipd));
if ((ipd.type[0] != ISO_VD_PRIMARY) ||
(strncmp(ipd.id, ISO_STANDARD_ID, sizeof (ipd.id)) != 0) ||
(ipd.version[0] != 1)) {
return 0;
}
return -1;
}
struct iso_directory_record *iso9660_get_root_node(iso9660_VOLUME* volume)
{
return (struct iso_directory_record *)volume->descriptor->root_directory_record;

1
fs/iso9660/libiso9660.h
View File

@@ -14,6 +14,7 @@
extern iso9660_VOLUME* iso9660_mount(int fd);
extern int iso9660_umount(iso9660_VOLUME *volume);
extern int iso9660_probe(int fd, llong offs);
extern iso9660_DIR* iso9660_opendir(iso9660_VOLUME *, const char *name);
extern iso9660_FILE* iso9660_open(iso9660_VOLUME *, const char *pathname);
extern int iso9660_closedir(iso9660_DIR *dir);