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- Add md_provsize field to metadata, which will help with

Browse Source 
shared-last-sector problem.
  After this change, even if there is more than one provider with the same
  last sector, the proper one will be chosen based on its size.
  It still doesn't fix the 'c' partition problem (when da0s1 can be confused
  with da0s1c) and situation when 'a' partition starts at offset 0
  (then da0s1a can be confused with da0s1 and da0s1c). One can use '-h'
  option there, when creating device or avoid sharing last sector.
  Actually, when providers share the same last sector and their size is equal,
  they provide exactly the same data, so the name (da0s1, da0s1a, da0s1c)
  isn't important at all.
- Provide backward compatibility.
- Update copyright's year.

MFC after:	1 week
This commit is contained in:
Pawel Jakub Dawidek 2005-02-27 23:07:47 +00:00
parent 8045ce213d
commit e68909854c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=142727
18 changed files with 212 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sbin/geom/class/concat/geom_concat.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -180,6 +180,13 @@ concat_label(struct gctl_req *req)
name += strlen(_PATH_DEV);
strlcpy(md.md_provider, name, sizeof(md.md_provider));
}
md.md_provsize = g_get_mediasize(name);
if (md.md_provsize == 0) {
fprintf(stderr, "Can't get mediasize of %s: %s.\n",
name, strerror(errno));
gctl_error(req, "Not fully done.");
continue;
}
concat_metadata_encode(&md, sector);
error = g_metadata_store(name, sector, sizeof(sector));
if (error != 0) {

8
sbin/geom/class/label/geom_label.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -149,6 +149,12 @@ label_label(struct gctl_req *req)
return;
}
strlcpy(md.md_label, label, sizeof(md.md_label));
md.md_provsize = g_get_mediasize(name);
if (md.md_provsize == 0) {
gctl_error(req, "Can't get mediasize of %s: %s.", name,
strerror(errno));
return;
}
/*
* Ok, store metadata.

4
sbin/geom/class/mirror/geom_mirror.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -268,6 +268,8 @@ mirror_label(struct gctl_req *req)
md.md_did = arc4random();
md.md_priority = i - 1;
md.md_provsize = g_get_mediasize(str);
assert(md.md_provsize != 0);
if (!*hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {

10
sbin/geom/class/raid3/geom_raid3.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -265,14 +265,16 @@ raid3_label(struct gctl_req *req)
snprintf(param, sizeof(param), "arg%u", i);
str = gctl_get_asciiparam(req, param);
msize = g_get_mediasize(str) - g_get_sectorsize(str);
if (mediasize < msize) {
msize = g_get_mediasize(str);
ssize = g_get_sectorsize(str);
if (mediasize < msize - ssize) {
fprintf(stderr,
"warning: %s: only %jd bytes from %jd bytes used.\n",
str, (intmax_t)mediasize, (intmax_t)msize);
str, (intmax_t)mediasize, (intmax_t)(msize - ssize));
}
md.md_no = i - 1;
md.md_provsize = msize;
if (!*hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {

10
sbin/geom/class/shsec/geom_shsec.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -181,14 +181,16 @@ shsec_label(struct gctl_req *req)
snprintf(param, sizeof(param), "arg%u", i);
name = gctl_get_asciiparam(req, param);
msize = g_get_mediasize(name) - g_get_sectorsize(name);
if (compsize < msize) {
msize = g_get_mediasize(name);
ssize = g_get_sectorsize(name);
if (compsize < msize - ssize) {
fprintf(stderr,
"warning: %s: only %jd bytes from %jd bytes used.\n",
name, (intmax_t)compsize, (intmax_t)msize);
name, (intmax_t)compsize, (intmax_t)(msize - ssize));
}
md.md_no = i - 1;
md.md_provsize = msize;
if (!*hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {

10
sbin/geom/class/stripe/geom_stripe.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -210,14 +210,16 @@ stripe_label(struct gctl_req *req)
snprintf(param, sizeof(param), "arg%u", i);
name = gctl_get_asciiparam(req, param);
msize = g_get_mediasize(name) - g_get_sectorsize(name);
if (compsize < msize) {
msize = g_get_mediasize(name);
ssize = g_get_sectorsize(name);
if (compsize < msize - ssize) {
fprintf(stderr,
"warning: %s: only %jd bytes from %jd bytes used.\n",
name, (intmax_t)compsize, (intmax_t)msize);
name, (intmax_t)compsize, (intmax_t)(msize - ssize));
}
md.md_no = i - 1;
md.md_provsize = msize;
if (!*hardcode)
bzero(md.md_provider, sizeof(md.md_provider));
else {

11
sys/geom/concat/g_concat.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -570,13 +570,18 @@ g_concat_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
}
/*
* Backward compatibility:
* There was no md_provider field in earlier versions of metadata.
*/
/* There was no md_provider field in earlier versions of metadata. */
if (md.md_version < 3)
bzero(md.md_provider, sizeof(md.md_provider));
/* There was no md_provsize field in earlier versions of metadata. */
if (md.md_version < 4)
md.md_provsize = pp->mediasize;
if (md.md_provider[0] != '\0' && strcmp(md.md_provider, pp->name) != 0)
return (NULL);
if (md.md_provsize != pp->mediasize)
return (NULL);
/*
* Let's check if device already exists.
@ -661,6 +666,8 @@ g_concat_ctl_create(struct gctl_req *req, struct g_class *mp)
md.md_no = 0;
md.md_all = *nargs - 1;
bzero(md.md_provider, sizeof(md.md_provider));
/* This field is not important here. */
md.md_provsize = 0;
/* Check all providers are valid */
for (no = 1; no < *nargs; no++) {

8
sys/geom/concat/g_concat.h
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -39,8 +39,9 @@
* 1 - Initial version number.
* 2 - Added 'stop' command to gconcat(8).
* 3 - Added md_provider field to metadata and '-h' option to gconcat(8).
* 4 - Added md_provsize field to metadata.
*/
#define G_CONCAT_VERSION 3
#define G_CONCAT_VERSION 4
#ifdef _KERNEL
#define G_CONCAT_TYPE_MANUAL 0
@ -93,6 +94,7 @@ struct g_concat_metadata {
uint16_t md_no; /* Disk number. */
uint16_t md_all; /* Number of all disks. */
char md_provider[16]; /* Hardcoded provider. */
uint64_t md_provsize; /* Provider's size. */
};
static __inline void
concat_metadata_encode(const struct g_concat_metadata *md, u_char *data)
@ -105,6 +107,7 @@ concat_metadata_encode(const struct g_concat_metadata *md, u_char *data)
le16enc(data + 40, md->md_no);
le16enc(data + 42, md->md_all);
bcopy(md->md_provider, data + 44, sizeof(md->md_provider));
le64enc(data + 60, md->md_provsize);
}
static __inline void
concat_metadata_decode(const u_char *data, struct g_concat_metadata *md)
@ -117,5 +120,6 @@ concat_metadata_decode(const u_char *data, struct g_concat_metadata *md)
md->md_no = le16dec(data + 40);
md->md_all = le16dec(data + 42);
bcopy(data + 44, md->md_provider, sizeof(md->md_provider));
md->md_provsize = le64dec(data + 60);
}
#endif /* _G_CONCAT_H_ */

16
sys/geom/label/g_label.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -238,6 +238,20 @@ g_label_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
pp->name);
break;
}
/*
* Backward compatibility:
*/
/*
* There was no md_provsize field in earlier versions of
* metadata.
*/
if (md.md_version < 2)
md.md_provsize = pp->mediasize;
if (md.md_provsize != pp->mediasize)
break;
g_label_create(NULL, mp, pp, md.md_label, G_LABEL_DIR,
pp->mediasize - pp->sectorsize);
} while (0);

12
sys/geom/label/g_label.h
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -34,7 +34,12 @@
#define G_LABEL_CLASS_NAME "LABEL"
#define G_LABEL_MAGIC "GEOM::LABEL"
#define G_LABEL_VERSION 1
/*
* Version history:
* 1 - Initial version number.
* 2 - Added md_provsize field to metadata.
*/
#define G_LABEL_VERSION 2
#define G_LABEL_DIR "label"
#ifdef _KERNEL
@ -68,6 +73,7 @@ struct g_label_metadata {
char md_magic[16]; /* Magic value. */
uint32_t md_version; /* Version number. */
char md_label[16]; /* Label. */
uint64_t md_provsize; /* Provider's size. */
};
static __inline void
label_metadata_encode(const struct g_label_metadata *md, u_char *data)
@ -76,6 +82,7 @@ label_metadata_encode(const struct g_label_metadata *md, u_char *data)
bcopy(md->md_magic, data, sizeof(md->md_magic));
le32enc(data + 16, md->md_version);
bcopy(md->md_label, data + 20, sizeof(md->md_label));
le64enc(data + 36, md->md_provsize);
}
static __inline void
label_metadata_decode(const u_char *data, struct g_label_metadata *md)
@ -84,5 +91,6 @@ label_metadata_decode(const u_char *data, struct g_label_metadata *md)
bcopy(data, md->md_magic, sizeof(md->md_magic));
md->md_version = le32dec(data + 16);
bcopy(data + 20, md->md_label, sizeof(md->md_label));
md->md_provsize = le64dec(data + 36);
}
#endif /* _G_LABEL_H_ */

4
sys/geom/mirror/g_mirror.c
View File

@ -669,6 +669,7 @@ g_mirror_fill_metadata(struct g_mirror_softc *sc, struct g_mirror_disk *disk,
md->md_syncid = 0;
md->md_dflags = 0;
md->md_sync_offset = 0;
md->md_provsize = 0;
} else {
md->md_did = disk->d_id;
md->md_priority = disk->d_priority;
@ -683,6 +684,7 @@ g_mirror_fill_metadata(struct g_mirror_softc *sc, struct g_mirror_disk *disk,
disk->d_consumer->provider->name,
sizeof(md->md_provider));
}
md->md_provsize = disk->d_consumer->provider->mediasize;
}
}
@ -2646,6 +2648,8 @@ g_mirror_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
if (md.md_provider[0] != '\0' && strcmp(md.md_provider, pp->name) != 0)
return (NULL);
if (md.md_provsize != 0 && md.md_provsize != pp->mediasize)
return (NULL);
if ((md.md_dflags & G_MIRROR_DISK_FLAG_INACTIVE) != 0) {
G_MIRROR_DEBUG(0,
"Device %s: provider %s marked as inactive, skipping.",

47
sys/geom/mirror/g_mirror.h
View File

@ -40,8 +40,9 @@
* 0 - Initial version number.
* 1 - Added 'prefer' balance algorithm.
* 2 - Added md_genid field to metadata.
* 3 - Added md_provsize field to metadata.
*/
#define G_MIRROR_VERSION 2
#define G_MIRROR_VERSION 3
#define G_MIRROR_BALANCE_NONE 0
#define G_MIRROR_BALANCE_ROUND_ROBIN 1
@ -226,6 +227,7 @@ struct g_mirror_metadata {
uint64_t md_mflags; /* Additional mirror flags. */
uint64_t md_dflags; /* Additional disk flags. */
char md_provider[16]; /* Hardcoded provider. */
uint64_t md_provsize; /* Provider's size. */
u_char md_hash[16]; /* MD5 hash. */
};
static __inline void
@ -250,10 +252,11 @@ mirror_metadata_encode(struct g_mirror_metadata *md, u_char *data)
le64enc(data + 79, md->md_mflags);
le64enc(data + 87, md->md_dflags);
bcopy(md->md_provider, data + 95, 16);
le64enc(data + 111, md->md_provsize);
MD5Init(&ctx);
MD5Update(&ctx, data, 111);
MD5Update(&ctx, data, 119);
MD5Final(md->md_hash, &ctx);
bcopy(md->md_hash, data + 111, 16);
bcopy(md->md_hash, data + 119, 16);
}
static __inline int
mirror_metadata_decode_v0v1(const u_char *data, struct g_mirror_metadata *md)
@ -283,6 +286,7 @@ mirror_metadata_decode_v0v1(const u_char *data, struct g_mirror_metadata *md)
/* New fields. */
md->md_genid = 0;
md->md_provsize = 0;
return (0);
}
@ -312,6 +316,39 @@ mirror_metadata_decode_v2(const u_char *data, struct g_mirror_metadata *md)
MD5Final(md->md_hash, &ctx);
if (bcmp(md->md_hash, data + 111, 16) != 0)
return (EINVAL);
/* New fields. */
md->md_provsize = 0;
return (0);
}
static __inline int
mirror_metadata_decode_v3(const u_char *data, struct g_mirror_metadata *md)
{
MD5_CTX ctx;
bcopy(data + 20, md->md_name, 16);
md->md_mid = le32dec(data + 36);
md->md_did = le32dec(data + 40);
md->md_all = *(data + 44);
md->md_genid = le32dec(data + 45);
md->md_syncid = le32dec(data + 49);
md->md_priority = *(data + 53);
md->md_slice = le32dec(data + 54);
md->md_balance = *(data + 58);
md->md_mediasize = le64dec(data + 59);
md->md_sectorsize = le32dec(data + 67);
md->md_sync_offset = le64dec(data + 71);
md->md_mflags = le64dec(data + 79);
md->md_dflags = le64dec(data + 87);
bcopy(data + 95, md->md_provider, 16);
md->md_provsize = le64dec(data + 111);
bcopy(data + 119, md->md_hash, 16);
MD5Init(&ctx);
MD5Update(&ctx, data, 119);
MD5Final(md->md_hash, &ctx);
if (bcmp(md->md_hash, data + 119, 16) != 0)
return (EINVAL);
return (0);
}
static __inline int
@ -329,6 +366,9 @@ mirror_metadata_decode(const u_char *data, struct g_mirror_metadata *md)
case 2:
error = mirror_metadata_decode_v2(data, md);
break;
case 3:
error = mirror_metadata_decode_v3(data, md);
break;
default:
error = EINVAL;
break;
@ -417,6 +457,7 @@ mirror_metadata_dump(const struct g_mirror_metadata *md)
}
printf("\n");
printf("hcprovider: %s\n", md->md_provider);
printf(" provsize: %ju\n", (uintmax_t)md->md_provsize);
bzero(hash, sizeof(hash));
for (i = 0; i < 16; i++) {
hash[i * 2] = hex[md->md_hash[i] >> 4];

20
sys/geom/raid3/g_raid3.c
View File

@ -673,6 +673,7 @@ void
g_raid3_fill_metadata(struct g_raid3_disk *disk, struct g_raid3_metadata *md)
{
struct g_raid3_softc *sc;
struct g_provider *pp;
sc = disk->d_softc;
strlcpy(md->md_magic, G_RAID3_MAGIC, sizeof(md->md_magic));
@ -691,13 +692,18 @@ g_raid3_fill_metadata(struct g_raid3_disk *disk, struct g_raid3_metadata *md)
md->md_sync_offset = disk->d_sync.ds_offset_done;
else
md->md_sync_offset = 0;
if ((disk->d_flags & G_RAID3_DISK_FLAG_HARDCODED) != 0 &&
disk->d_consumer != NULL && disk->d_consumer->provider != NULL) {
strlcpy(md->md_provider, disk->d_consumer->provider->name,
sizeof(md->md_provider));
} else {
if (disk->d_consumer != NULL && disk->d_consumer->provider != NULL)
pp = disk->d_consumer->provider;
else
pp = NULL;
if ((disk->d_flags & G_RAID3_DISK_FLAG_HARDCODED) != 0 && pp != NULL)
strlcpy(md->md_provider, pp->name, sizeof(md->md_provider));
else
bzero(md->md_provider, sizeof(md->md_provider));
}
if (pp != NULL)
md->md_provsize = pp->mediasize;
else
md->md_provsize = 0;
}
void
@ -2886,6 +2892,8 @@ g_raid3_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
if (md.md_provider[0] != '\0' && strcmp(md.md_provider, pp->name) != 0)
return (NULL);
if (md.md_provsize != 0 && md.md_provsize != pp->mediasize)
return (NULL);
if (g_raid3_debug >= 2)
raid3_metadata_dump(&md);

48
sys/geom/raid3/g_raid3.h
View File

@ -41,8 +41,9 @@
* 1 - Added 'round-robin reading' algorithm.
* 2 - Added 'verify reading' algorithm.
* 3 - Added md_genid field to metadata.
* 4 - Added md_provsize field to metadata.
*/
#define G_RAID3_VERSION 3
#define G_RAID3_VERSION 4
#define G_RAID3_DISK_FLAG_DIRTY 0x0000000000000001ULL
#define G_RAID3_DISK_FLAG_SYNCHRONIZING 0x0000000000000002ULL
@ -235,6 +236,7 @@ struct g_raid3_metadata {
uint64_t md_mflags; /* Additional device flags. */
uint64_t md_dflags; /* Additional disk flags. */
char md_provider[16]; /* Hardcoded provider. */
uint64_t md_provsize; /* Provider's size. */
u_char md_hash[16]; /* MD5 hash. */
};
static __inline void
@ -256,10 +258,11 @@ raid3_metadata_encode(struct g_raid3_metadata *md, u_char *data)
le64enc(data + 72, md->md_mflags);
le64enc(data + 80, md->md_dflags);
bcopy(md->md_provider, data + 88, 16);
le64enc(data + 104, md->md_provsize);
MD5Init(&ctx);
MD5Update(&ctx, data, 104);
MD5Update(&ctx, data, 112);
MD5Final(md->md_hash, &ctx);
bcopy(md->md_hash, data + 104, 16);
bcopy(md->md_hash, data + 112, 16);
}
static __inline int
raid3_metadata_decode_v0v1v2(const u_char *data, struct g_raid3_metadata *md)
@ -283,6 +286,11 @@ raid3_metadata_decode_v0v1v2(const u_char *data, struct g_raid3_metadata *md)
MD5Final(md->md_hash, &ctx);
if (bcmp(md->md_hash, data + 100, 16) != 0)
return (EINVAL);
/* New fields. */
md->md_genid = 0;
md->md_provsize = 0;
return (0);
}
static __inline int
@ -308,6 +316,36 @@ raid3_metadata_decode_v3(const u_char *data, struct g_raid3_metadata *md)
MD5Final(md->md_hash, &ctx);
if (bcmp(md->md_hash, data + 104, 16) != 0)
return (EINVAL);
/* New fields. */
md->md_provsize = 0;
return (0);
}
static __inline int
raid3_metadata_decode_v4(const u_char *data, struct g_raid3_metadata *md)
{
MD5_CTX ctx;
bcopy(data + 20, md->md_name, 16);
md->md_id = le32dec(data + 36);
md->md_no = le16dec(data + 40);
md->md_all = le16dec(data + 42);
md->md_genid = le32dec(data + 44);
md->md_syncid = le32dec(data + 48);
md->md_mediasize = le64dec(data + 52);
md->md_sectorsize = le32dec(data + 60);
md->md_sync_offset = le64dec(data + 64);
md->md_mflags = le64dec(data + 72);
md->md_dflags = le64dec(data + 80);
bcopy(data + 88, md->md_provider, 16);
md->md_provsize = le64dec(data + 104);
bcopy(data + 112, md->md_hash, 16);
MD5Init(&ctx);
MD5Update(&ctx, data, 112);
MD5Final(md->md_hash, &ctx);
if (bcmp(md->md_hash, data + 112, 16) != 0)
return (EINVAL);
return (0);
}
static __inline int
@ -326,6 +364,9 @@ raid3_metadata_decode(const u_char *data, struct g_raid3_metadata *md)
case 3:
error = raid3_metadata_decode_v3(data, md);
break;
case 4:
error = raid3_metadata_decode_v4(data, md);
break;
default:
error = EINVAL;
break;
@ -376,6 +417,7 @@ raid3_metadata_dump(const struct g_raid3_metadata *md)
}
printf("\n");
printf("hcprovider: %s\n", md->md_provider);
printf(" provsize: %ju\n", (uintmax_t)md->md_provsize);
bzero(hash, sizeof(hash));
for (i = 0; i < 16; i++) {
hash[i * 2] = hex[md->md_hash[i] >> 4];

9
sys/geom/shsec/g_shsec.c
View File

@ -660,8 +660,17 @@ g_shsec_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
pp->name);
return (NULL);
}
/*
* Backward compatibility:
*/
/* There was no md_provsize field in earlier versions of metadata. */
if (md.md_version < 1)
md.md_provsize = pp->mediasize;
if (md.md_provider[0] != '\0' && strcmp(md.md_provider, pp->name) != 0)
return (NULL);
if (md.md_provsize != pp->mediasize)
return (NULL);
/*
* Let's check if device already exists.

6
sys/geom/shsec/g_shsec.h
View File

@ -37,8 +37,9 @@
/*
* Version history:
* 0 - Initial version number.
* 1 - Added md_provsize field to metadata.
*/
#define G_SHSEC_VERSION 0
#define G_SHSEC_VERSION 1
#ifdef _KERNEL
#define G_SHSEC_BFLAG_FIRST 0x1
@ -85,6 +86,7 @@ struct g_shsec_metadata {
uint16_t md_no; /* Disk number. */
uint16_t md_all; /* Number of all disks. */
char md_provider[16]; /* Hardcoded provider. */
uint64_t md_provsize; /* Provider's size. */
};
static __inline void
shsec_metadata_encode(const struct g_shsec_metadata *md, u_char *data)
@ -97,6 +99,7 @@ shsec_metadata_encode(const struct g_shsec_metadata *md, u_char *data)
le16enc(data + 40, md->md_no);
le16enc(data + 42, md->md_all);
bcopy(md->md_provider, data + 44, sizeof(md->md_provider));
le64enc(data + 60, md->md_provsize);
}
static __inline void
shsec_metadata_decode(const u_char *data, struct g_shsec_metadata *md)
@ -109,5 +112,6 @@ shsec_metadata_decode(const u_char *data, struct g_shsec_metadata *md)
md->md_no = le16dec(data + 40);
md->md_all = le16dec(data + 42);
bcopy(data + 44, md->md_provider, sizeof(md->md_provider));
md->md_provsize = le64dec(data + 60);
}
#endif /* _G_SHSEC_H_ */

11
sys/geom/stripe/g_stripe.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -901,13 +901,18 @@ g_stripe_taste(struct g_class *mp, struct g_provider *pp, int flags __unused)
}
/*
* Backward compatibility:
* There was no md_provider field in earlier versions of metadata.
*/
/* There was no md_provider field in earlier versions of metadata. */
if (md.md_version < 2)
bzero(md.md_provider, sizeof(md.md_provider));
/* There was no md_provsize field in earlier versions of metadata. */
if (md.md_version < 3)
md.md_provsize = pp->mediasize;
if (md.md_provider[0] != '\0' && strcmp(md.md_provider, pp->name) != 0)
return (NULL);
if (md.md_provsize != pp->mediasize)
return (NULL);
/*
* Let's check if device already exists.
@ -999,6 +1004,8 @@ g_stripe_ctl_create(struct gctl_req *req, struct g_class *mp)
}
md.md_stripesize = *stripesize;
bzero(md.md_provider, sizeof(md.md_provider));
/* This field is not important here. */
md.md_provsize = 0;
/* Check all providers are valid */
for (no = 1; no < *nargs; no++) {

8
sys/geom/stripe/g_stripe.h
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -39,8 +39,9 @@
* 0 - Initial version number.
* 1 - Added 'stop' command for gstripe(8).
* 2 - Added md_provider field to metadata and '-h' option for gstripe(8).
* 3 - Added md_provsize field to metadata.
*/
#define G_STRIPE_VERSION 2
#define G_STRIPE_VERSION 3
#ifdef _KERNEL
#define G_STRIPE_TYPE_MANUAL 0
@ -88,6 +89,7 @@ struct g_stripe_metadata {
uint16_t md_all; /* Number of all disks. */
uint32_t md_stripesize; /* Stripe size. */
char md_provider[16]; /* Hardcoded provider. */
uint64_t md_provsize; /* Provider's size. */
};
static __inline void
stripe_metadata_encode(const struct g_stripe_metadata *md, u_char *data)
@ -101,6 +103,7 @@ stripe_metadata_encode(const struct g_stripe_metadata *md, u_char *data)
le16enc(data + 42, md->md_all);
le32enc(data + 44, md->md_stripesize);
bcopy(md->md_provider, data + 48, sizeof(md->md_provider));
le64enc(data + 64, md->md_provsize);
}
static __inline void
stripe_metadata_decode(const u_char *data, struct g_stripe_metadata *md)
@ -114,6 +117,7 @@ stripe_metadata_decode(const u_char *data, struct g_stripe_metadata *md)
md->md_all = le16dec(data + 42);
md->md_stripesize = le32dec(data + 44);
bcopy(data + 48, md->md_provider, sizeof(md->md_provider));
md->md_provsize = le64dec(data + 64);
}
#ifndef BITCOUNT