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authormlelstv <mlelstv@NetBSD.org>2022-04-24 06:48:15 +0000
committermlelstv <mlelstv@NetBSD.org>2022-04-24 06:48:15 +0000
commita17aed3befa70ff13d8e8d3ef4340fcecdcd445a (patch)
treed6ce678d885587967b940269faa2d7ef9543ffac /sys/lib/libsa
parent1640aad2b8e4339f34784a4bc14e52fb6a068cb4 (diff)
Ask driver about sector size to support reading superblocks from fixed
byte offsets.
Diffstat (limited to 'sys/lib/libsa')
-rw-r--r--sys/lib/libsa/ext2fs.c10
-rw-r--r--sys/lib/libsa/minixfs3.c10
-rw-r--r--sys/lib/libsa/saioctl.h4
-rw-r--r--sys/lib/libsa/ufs.c14
4 files changed, 30 insertions, 8 deletions
diff --git a/sys/lib/libsa/ext2fs.c b/sys/lib/libsa/ext2fs.c
index b810947fdaf..007c732dfac 100644
--- a/sys/lib/libsa/ext2fs.c
+++ b/sys/lib/libsa/ext2fs.c
@@ -1,4 +1,4 @@
-/* $NetBSD: ext2fs.c,v 1.30 2022/04/19 09:25:38 skrll Exp $ */
+/* $NetBSD: ext2fs.c,v 1.31 2022/04/24 06:48:15 mlelstv Exp $ */
/*
* Copyright (c) 1997 Manuel Bouyer.
@@ -415,9 +415,15 @@ read_sblock(struct open_file *f, struct m_ext2fs *fs)
struct ext2fs ext2fs;
size_t buf_size;
int rc;
+ u_int secsize;
+
+ secsize = 0;
+ rc = DEV_IOCTL(f->f_dev)(f, SAIOSECSIZE, &secsize);
+ if (rc != 0 || secsize == 0)
+ secsize = DEV_BSIZE;
rc = DEV_STRATEGY(f->f_dev)(f->f_devdata, F_READ,
- SBOFF / DEV_BSIZE, SBSIZE, sbbuf, &buf_size);
+ SBOFF / secsize, SBSIZE, sbbuf, &buf_size);
if (rc)
return rc;
diff --git a/sys/lib/libsa/minixfs3.c b/sys/lib/libsa/minixfs3.c
index e1622c2e623..9903f12d4fd 100644
--- a/sys/lib/libsa/minixfs3.c
+++ b/sys/lib/libsa/minixfs3.c
@@ -1,4 +1,4 @@
-/* $NetBSD: minixfs3.c,v 1.9 2022/04/19 09:25:38 skrll Exp $ */
+/* $NetBSD: minixfs3.c,v 1.10 2022/04/24 06:48:15 mlelstv Exp $ */
/*-
* Copyright (c) 2012
@@ -449,6 +449,7 @@ read_sblock(struct open_file *f, struct mfs_sblock *fs)
static uint8_t sbbuf[MINBSIZE];
size_t buf_size;
int rc;
+ u_int secsize;
/* We must read amount multiple of sector size, hence we can't
* read SBSIZE and read MINBSIZE.
@@ -456,8 +457,13 @@ read_sblock(struct open_file *f, struct mfs_sblock *fs)
if (SBSIZE > MINBSIZE)
return EINVAL;
+ secsize = 0;
+ rc = DEV_IOCTL(f->f_dev)(f, SAIOSECSIZE, &secsize);
+ if (rc != 0 || secsize == 0)
+ secsize = DEV_BSIZE;
+
rc = DEV_STRATEGY(f->f_dev)(f->f_devdata, F_READ,
- SUPER_BLOCK_OFF / DEV_BSIZE, MINBSIZE, sbbuf, &buf_size);
+ SUPER_BLOCK_OFF / secsize, MINBSIZE, sbbuf, &buf_size);
if (rc)
return rc;
diff --git a/sys/lib/libsa/saioctl.h b/sys/lib/libsa/saioctl.h
index 8b0198a6a3c..9b0fa68b1b7 100644
--- a/sys/lib/libsa/saioctl.h
+++ b/sys/lib/libsa/saioctl.h
@@ -1,4 +1,4 @@
-/* $NetBSD: saioctl.h,v 1.4 2005/12/11 12:24:46 christos Exp $ */
+/* $NetBSD: saioctl.h,v 1.5 2022/04/24 06:48:15 mlelstv Exp $ */
/*-
* Copyright (c) 1993
@@ -46,3 +46,5 @@
#define SAIOSSDEV (('d'<<8)|12) /* is device skip sector type? */
#define SAIODEBUG (('d'<<8)|13) /* enable/disable debugging */
#define SAIOGBADINFO (('d'<<8)|14) /* get bad-sector table */
+
+#define SAIOSECSIZE (('d'<<8)|15) /* get sector size */
diff --git a/sys/lib/libsa/ufs.c b/sys/lib/libsa/ufs.c
index df0e5a7b475..8a8a328a96a 100644
--- a/sys/lib/libsa/ufs.c
+++ b/sys/lib/libsa/ufs.c
@@ -1,4 +1,4 @@
-/* $NetBSD: ufs.c,v 1.81 2022/04/19 09:25:38 skrll Exp $ */
+/* $NetBSD: ufs.c,v 1.82 2022/04/24 06:48:15 mlelstv Exp $ */
/*-
* Copyright (c) 1993
@@ -594,13 +594,21 @@ ffs_find_superblock(struct open_file *f, FS *fs)
struct file *fp = (struct file *)f->f_fsdata;
int rc;
size_t buf_size;
+ u_int secsize;
#ifdef LIBSA_FFSv2
static daddr_t sblock_try[] = SBLOCKSEARCH;
int i;
+#endif
+
+ secsize = 0;
+ rc = DEV_IOCTL(f->f_dev)(f, SAIOSECSIZE, &secsize);
+ if (rc != 0 || secsize == 0)
+ secsize = DEV_BSIZE;
+#ifdef LIBSA_FFSv2
for (i = 0; sblock_try[i] != -1; i++) {
rc = DEV_STRATEGY(f->f_dev)(f->f_devdata, F_READ,
- sblock_try[i] / DEV_BSIZE, SBLOCKSIZE, fs, &buf_size);
+ sblock_try[i] / secsize, SBLOCKSIZE, fs, &buf_size);
if (rc)
return rc;
if (buf_size != SBLOCKSIZE)
@@ -615,7 +623,7 @@ ffs_find_superblock(struct open_file *f, FS *fs)
return EINVAL;
#else /* LIBSA_FFSv2 */
rc = DEV_STRATEGY(f->f_dev)(f->f_devdata, F_READ,
- SBLOCKOFFSET / DEV_BSIZE, SBLOCKSIZE, fs, &buf_size);
+ SBLOCKOFFSET / secsize, SBLOCKSIZE, fs, &buf_size);
if (rc)
return rc;
if (buf_size != SBLOCKSIZE)