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Use SMB_QUERY_FS_SIZE_INFO request to populate statfs structure.

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When server doesn't support this request, try to use SMB_INFO_ALLOCATION.
And use SMB_COM_QUERY_INFORMATION_DISK request as fallback.

MFC after:	2 weeks
This commit is contained in:
Andrey V. Elsukov 2014-04-15 09:10:01 +00:00
parent c31159ae1b
commit 14b2dc3952
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=264494
3 changed files with 64 additions and 18 deletions
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63
sys/fs/smbfs/smbfs_smb.c
View File

@ -135,8 +135,49 @@ smbfs_smb_lock(struct smbnode *np, int op, caddr_t id,
return smbfs_smb_lockandx(np, op, (uintptr_t)id, start, end, scred);
}
int
smbfs_smb_statfs2(struct smb_share *ssp, struct statfs *sbp,
static int
smbfs_query_info_fs(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
struct smb_t2rq *t2p;
struct mbchain *mbp;
struct mdchain *mdp;
uint32_t bsize, bpu;
int64_t units, funits;
int error;
error = smb_t2_alloc(SSTOCP(ssp), SMB_TRANS2_QUERY_FS_INFORMATION,
scred, &t2p);
if (error)
return (error);
mbp = &t2p->t2_tparam;
mb_init(mbp);
mb_put_uint16le(mbp, SMB_QUERY_FS_SIZE_INFO);
t2p->t2_maxpcount = 2;
t2p->t2_maxdcount = sizeof(int64_t) * 2 + sizeof(uint32_t) * 2;
error = smb_t2_request(t2p);
if (error) {
smb_t2_done(t2p);
return (error);
}
mdp = &t2p->t2_rdata;
md_get_int64le(mdp, &units);
md_get_int64le(mdp, &funits);
md_get_uint32le(mdp, &bpu);
md_get_uint32le(mdp, &bsize);
sbp->f_bsize = bpu * bsize; /* fundamental filesystem block size */
sbp->f_blocks= (uint64_t)units; /* total data blocks in filesystem */
sbp->f_bfree = (uint64_t)funits;/* free blocks in fs */
sbp->f_bavail= (uint64_t)funits;/* free blocks avail to non-superuser */
sbp->f_files = 0xffff; /* total file nodes in filesystem */
sbp->f_ffree = 0xffff; /* free file nodes in fs */
smb_t2_done(t2p);
return (0);
}
static int
smbfs_query_info_alloc(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
struct smb_t2rq *t2p;
@ -176,8 +217,8 @@ smbfs_smb_statfs2(struct smb_share *ssp, struct statfs *sbp,
return 0;
}
int
smbfs_smb_statfs(struct smb_share *ssp, struct statfs *sbp,
static int
smbfs_query_info_disk(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
struct smb_rq *rqp;
@ -213,6 +254,20 @@ smbfs_smb_statfs(struct smb_share *ssp, struct statfs *sbp,
return 0;
}
int
smbfs_smb_statfs(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred)
{
if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0) {
if (smbfs_query_info_fs(ssp, sbp, scred) == 0)
return (0);
if (smbfs_query_info_alloc(ssp, sbp, scred) == 0)
return (0);
}
return (smbfs_query_info_disk(ssp, sbp, scred));
}
static int
smbfs_smb_seteof(struct smbnode *np, int64_t newsize, struct smb_cred *scred)
{

2
sys/fs/smbfs/smbfs_subr.h
View File

@ -126,8 +126,6 @@ struct smbfs_fctx {
*/
int smbfs_smb_lock(struct smbnode *np, int op, caddr_t id,
off_t start, off_t end, struct smb_cred *scred);
int smbfs_smb_statfs2(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred);
int smbfs_smb_statfs(struct smb_share *ssp, struct statfs *sbp,
struct smb_cred *scred);
int smbfs_smb_setfsize(struct smbnode *np, int newsize, struct smb_cred *scred);

17
sys/fs/smbfs/smbfs_vfsops.c
View File

@ -390,7 +390,7 @@ smbfs_statfs(struct mount *mp, struct statfs *sbp)
struct smbnode *np = smp->sm_root;
struct smb_share *ssp = smp->sm_share;
struct smb_cred *scred;
int error = 0;
int error;
if (np == NULL) {
vfs_mount_error(mp, "np == NULL");
@ -400,16 +400,9 @@ smbfs_statfs(struct mount *mp, struct statfs *sbp)
sbp->f_iosize = SSTOVC(ssp)->vc_txmax; /* optimal transfer block size */
scred = smbfs_malloc_scred();
smb_makescred(scred, td, td->td_ucred);
if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
error = smbfs_smb_statfs2(ssp, sbp, scred);
else
error = smbfs_smb_statfs(ssp, sbp, scred);
if (error) {
smbfs_free_scred(scred);
return error;
}
sbp->f_flags = 0; /* copy of mount exported flags */
error = smbfs_smb_statfs(ssp, sbp, scred);
if (error == 0)
sbp->f_flags = 0; /* copy of mount exported flags */
smbfs_free_scred(scred);
return 0;
return (error);
}