diff options
Diffstat (limited to 'sys/geom/label/g_label_ntfs.c')
| -rw-r--r-- | sys/geom/label/g_label_ntfs.c | 79 |
1 files changed, 65 insertions, 14 deletions
diff --git a/sys/geom/label/g_label_ntfs.c b/sys/geom/label/g_label_ntfs.c index 1ee3f79..1ed4a07 100644 --- a/sys/geom/label/g_label_ntfs.c +++ b/sys/geom/label/g_label_ntfs.c @@ -32,21 +32,72 @@ __FBSDID("$FreeBSD$"); #include <sys/kernel.h> #include <sys/malloc.h> -#include <fs/ntfs/ntfs.h> - #include <geom/geom.h> #include <geom/label/g_label.h> +#define NTFS_A_VOLUMENAME 0x60 +#define NTFS_FILEMAGIC ((uint32_t)(0x454C4946)) +#define NTFS_VOLUMEINO 3 + #define G_LABEL_NTFS_DIR "ntfs" +struct ntfs_attr { + uint32_t a_type; + uint32_t reclen; + uint8_t a_flag; + uint8_t a_namelen; + uint8_t a_nameoff; + uint8_t reserved1; + uint8_t a_compression; + uint8_t reserved2; + uint16_t a_index; + uint16_t a_datalen; + uint16_t reserved3; + uint16_t a_dataoff; + uint16_t a_indexed; +} __packed; + +struct ntfs_filerec { + uint32_t fr_hdrmagic; + uint16_t fr_hdrfoff; + uint16_t fr_hdrfnum; + uint8_t reserved[8]; + uint16_t fr_seqnum; + uint16_t fr_nlink; + uint16_t fr_attroff; + uint16_t fr_flags; + uint32_t fr_size; + uint32_t fr_allocated; + uint64_t fr_mainrec; + uint16_t fr_attrnum; +} __packed; + +struct ntfs_bootfile { + uint8_t reserved1[3]; + uint8_t bf_sysid[8]; + uint16_t bf_bps; + uint8_t bf_spc; + uint8_t reserved2[7]; + uint8_t bf_media; + uint8_t reserved3[2]; + uint16_t bf_spt; + uint16_t bf_heads; + uint8_t reserver4[12]; + uint64_t bf_spv; + uint64_t bf_mftcn; + uint64_t bf_mftmirrcn; + uint8_t bf_mftrecsz; + uint32_t bf_ibsz; + uint32_t bf_volsn; +} __packed; static void g_label_ntfs_taste(struct g_consumer *cp, char *label, size_t size) { struct g_provider *pp; - struct bootfile *bf; - struct filerec *fr; - struct attr *atr; + struct ntfs_bootfile *bf; + struct ntfs_filerec *fr; + struct ntfs_attr *atr; off_t voloff; char *filerecp, *ap; char mftrecsz, vnchar; @@ -58,7 +109,7 @@ g_label_ntfs_taste(struct g_consumer *cp, char *label, size_t size) pp = cp->provider; filerecp = NULL; - bf = (struct bootfile *)g_read_data(cp, 0, pp->sectorsize, NULL); + bf = (struct ntfs_bootfile *)g_read_data(cp, 0, pp->sectorsize, NULL); if (bf == NULL || strncmp(bf->bf_sysid, "NTFS ", 8) != 0) goto done; @@ -75,16 +126,16 @@ g_label_ntfs_taste(struct g_consumer *cp, char *label, size_t size) filerecp = g_read_data(cp, voloff, recsize, NULL); if (filerecp == NULL) goto done; - fr = (struct filerec *)filerecp; + fr = (struct ntfs_filerec *)filerecp; - if (fr->fr_fixup.fh_magic != NTFS_FILEMAGIC) + if (fr->fr_hdrmagic != NTFS_FILEMAGIC) goto done; for (ap = filerecp + fr->fr_attroff; - atr = (struct attr *)ap, atr->a_hdr.a_type != -1; - ap += atr->a_hdr.reclen) { - if (atr->a_hdr.a_type == NTFS_A_VOLUMENAME) { - if(atr->a_r.a_datalen >= size *2){ + atr = (struct ntfs_attr *)ap, atr->a_type != -1; + ap += atr->reclen) { + if (atr->a_type == NTFS_A_VOLUMENAME) { + if(atr->a_datalen >= size *2){ label[0] = 0; goto done; } @@ -92,8 +143,8 @@ g_label_ntfs_taste(struct g_consumer *cp, char *label, size_t size) *UNICODE to ASCII. * Should we need to use iconv(9)? */ - for (j = 0; j < atr->a_r.a_datalen; j++) { - vnchar = *(ap + atr->a_r.a_dataoff + j); + for (j = 0; j < atr->a_datalen; j++) { + vnchar = *(ap + atr->a_dataoff + j); if (j & 1) { if (vnchar) { label[0] = 0; |
