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-rw-r--r--fs/nfsd/export.c2
-rw-r--r--fs/nfsd/nfs4state.c32
-rw-r--r--fs/nfsd/nfsfh.c27
-rw-r--r--fs/nfsd/vfs.c14
4 files changed, 41 insertions, 34 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 3eec30000f3..01bc68c628a 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -126,7 +126,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
if (*ep)
goto out;
dprintk("found fsidtype %d\n", fsidtype);
- if (fsidtype > 2)
+ if (key_len(fsidtype)==0) /* invalid type */
goto out;
if ((len=qword_get(&mesg, buf, PAGE_SIZE)) <= 0)
goto out;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 7c7d01672d3..9daa0b9feb8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1237,8 +1237,15 @@ find_file(struct inode *ino)
return NULL;
}
-#define TEST_ACCESS(x) ((x > 0 || x < 4)?1:0)
-#define TEST_DENY(x) ((x >= 0 || x < 5)?1:0)
+static int access_valid(u32 x)
+{
+ return (x > 0 && x < 4);
+}
+
+static int deny_valid(u32 x)
+{
+ return (x >= 0 && x < 5);
+}
static void
set_access(unsigned int *access, unsigned long bmap) {
@@ -1745,7 +1752,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
int status;
status = nfserr_inval;
- if (!TEST_ACCESS(open->op_share_access) || !TEST_DENY(open->op_share_deny))
+ if (!access_valid(open->op_share_access)
+ || !deny_valid(open->op_share_deny))
goto out;
/*
* Lookup file; if found, lookup stateid and check open request,
@@ -1782,10 +1790,10 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
} else {
/* Stateid was not found, this is a new OPEN */
int flags = 0;
+ if (open->op_share_access & NFS4_SHARE_ACCESS_READ)
+ flags |= MAY_READ;
if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
- flags = MAY_WRITE;
- else
- flags = MAY_READ;
+ flags |= MAY_WRITE;
status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
if (status)
goto out;
@@ -2070,16 +2078,12 @@ nfs4_preprocess_stateid_op(struct svc_fh *current_fh, stateid_t *stateid, int fl
if (!stateid->si_fileid) { /* delegation stateid */
if(!(dp = find_delegation_stateid(ino, stateid))) {
dprintk("NFSD: delegation stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
stidp = &dp->dl_stateid;
} else { /* open or lock stateid */
if (!(stp = find_stateid(stateid, flags))) {
dprintk("NFSD: open or lock stateid not found\n");
- if (nfs4_in_grace())
- status = nfserr_grace;
goto out;
}
if ((flags & CHECK_FH) && nfs4_check_fh(current_fh, stp))
@@ -2252,8 +2256,9 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfs
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if ((status = fh_verify(rqstp, current_fh, S_IFREG, 0)))
- goto out;
+ status = fh_verify(rqstp, current_fh, S_IFREG, 0);
+ if (status)
+ return status;
nfs4_lock_state();
@@ -2320,7 +2325,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct n
(int)current_fh->fh_dentry->d_name.len,
current_fh->fh_dentry->d_name.name);
- if (!TEST_ACCESS(od->od_share_access) || !TEST_DENY(od->od_share_deny))
+ if (!access_valid(od->od_share_access)
+ || !deny_valid(od->od_share_deny))
return nfserr_inval;
nfs4_lock_state();
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3f2ec2e6d06..ecc439d2565 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -187,13 +187,6 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
goto out;
}
- /* Set user creds for this exportpoint */
- error = nfsd_setuser(rqstp, exp);
- if (error) {
- error = nfserrno(error);
- goto out;
- }
-
/*
* Look up the dentry using the NFS file handle.
*/
@@ -251,6 +244,14 @@ fh_verify(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, int access)
}
cache_get(&exp->h);
+ /* Set user creds for this exportpoint; necessary even in the "just
+ * checking" case because this may be a filehandle that was created by
+ * fh_compose, and that is about to be used in another nfsv4 compound
+ * operation */
+ error = nfserrno(nfsd_setuser(rqstp, exp));
+ if (error)
+ goto out;
+
error = nfsd_mode_check(rqstp, dentry->d_inode->i_mode, type);
if (error)
goto out;
@@ -312,8 +313,8 @@ int
fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, struct svc_fh *ref_fh)
{
/* ref_fh is a reference file handle.
- * if it is non-null, then we should compose a filehandle which is
- * of the same version, where possible.
+ * if it is non-null and for the same filesystem, then we should compose
+ * a filehandle which is of the same version, where possible.
* Currently, that means that if ref_fh->fh_handle.fh_version == 0xca
* Then create a 32byte filehandle using nfs_fhbase_old
*
@@ -332,7 +333,7 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry, st
parent->d_name.name, dentry->d_name.name,
(inode ? inode->i_ino : 0));
- if (ref_fh) {
+ if (ref_fh && ref_fh->fh_export == exp) {
ref_fh_version = ref_fh->fh_handle.fh_version;
if (ref_fh_version == 0xca)
ref_fh_fsid_type = 0;
@@ -461,7 +462,7 @@ fh_update(struct svc_fh *fhp)
} else {
int size;
if (fhp->fh_handle.fh_fileid_type != 0)
- goto out_uptodate;
+ goto out;
datap = fhp->fh_handle.fh_auth+
fhp->fh_handle.fh_size/4 -1;
size = (fhp->fh_maxsize - fhp->fh_handle.fh_size)/4;
@@ -481,10 +482,6 @@ out_negative:
printk(KERN_ERR "fh_update: %s/%s still negative!\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
goto out;
-out_uptodate:
- printk(KERN_ERR "fh_update: %s/%s already up-to-date!\n",
- dentry->d_parent->d_name.name, dentry->d_name.name);
- goto out;
}
/*
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index da3ec74d8a4..c9e3b5a8fe0 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -672,7 +672,10 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
goto out_nfserr;
if (access & MAY_WRITE) {
- flags = O_WRONLY|O_LARGEFILE;
+ if (access & MAY_READ)
+ flags = O_RDWR|O_LARGEFILE;
+ else
+ flags = O_WRONLY|O_LARGEFILE;
DQUOT_INIT(inode);
}
@@ -833,7 +836,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
if (ra && ra->p_set)
file->f_ra = ra->p_ra;
- if (file->f_op->sendfile) {
+ if (file->f_op->sendfile && rqstp->rq_sendfile_ok) {
svc_pushback_unused_pages(rqstp);
err = file->f_op->sendfile(file, &offset, *count,
nfsd_read_actor, rqstp);
@@ -1516,14 +1519,15 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
err = nfserrno(err);
}
- fh_unlock(ffhp);
dput(dnew);
+out_unlock:
+ fh_unlock(ffhp);
out:
return err;
out_nfserr:
err = nfserrno(err);
- goto out;
+ goto out_unlock;
}
/*
@@ -1552,7 +1556,7 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
tdir = tdentry->d_inode;
err = (rqstp->rq_vers == 2) ? nfserr_acces : nfserr_xdev;
- if (fdir->i_sb != tdir->i_sb)
+ if (ffhp->fh_export != tfhp->fh_export)
goto out;
err = nfserr_perm;
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-01 20:20:09 +0000