コード例 #1
0
static int
cifs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
	struct super_block *sb = dentry->d_sb;
	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
	int rc = -EOPNOTSUPP;
	int xid;

	xid = GetXid();

	buf->f_type = CIFS_MAGIC_NUMBER;

	/*
	 * PATH_MAX may be too long - it would presumably be total path,
	 * but note that some servers (includinng Samba 3) have a shorter
	 * maximum path.
	 *
	 * Instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO.
	 */
	buf->f_namelen = PATH_MAX;
	buf->f_files = 0;	/* undefined */
	buf->f_ffree = 0;	/* unlimited */

	/*
	 * We could add a second check for a QFS Unix capability bit
	 */
	if ((tcon->ses->capabilities & CAP_UNIX) &&
	    (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
		rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);

	/*
	 * Only need to call the old QFSInfo if failed on newer one,
	 * e.g. by OS/2.
	 **/
	if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
		rc = CIFSSMBQFSInfo(xid, tcon, buf);

	/*
	 * Some old Windows servers also do not support level 103, retry with
	 * older level one if old server failed the previous call or we
	 * bypassed it because we detected that this was an older LANMAN sess
	 */
	if (rc)
		rc = SMBOldQFSInfo(xid, tcon, buf);

	FreeXid(xid);
	return 0;
}
コード例 #2
0
ファイル: cifsfs.c プロジェクト: foxsat-hdr/linux-kernel
static int
cifs_statfs(struct super_block *sb, struct kstatfs *buf)
{
	int xid; 
	int rc = -EOPNOTSUPP;
	struct cifs_sb_info *cifs_sb;
	struct cifsTconInfo *pTcon;

	xid = GetXid();

	cifs_sb = CIFS_SB(sb);
	pTcon = cifs_sb->tcon;

	buf->f_type = CIFS_MAGIC_NUMBER;

	/* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */
	buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would 
				      presumably be total path, but note
				      that some servers (includinng Samba 3)
				      have a shorter maximum path */
	buf->f_files = 0;	/* undefined */
	buf->f_ffree = 0;	/* unlimited */

#ifdef CONFIG_CIFS_EXPERIMENTAL
/* BB we could add a second check for a QFS Unix capability bit */
/* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */
    if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS &
			le64_to_cpu(pTcon->fsUnixInfo.Capability)))
	    rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);

    /* Only need to call the old QFSInfo if failed
    on newer one */
    if(rc)
#endif /* CIFS_EXPERIMENTAL */
	rc = CIFSSMBQFSInfo(xid, pTcon, buf);

	/*     
	   int f_type;
	   __fsid_t f_fsid;
	   int f_namelen;  */
	/* BB get from info in tcon struct at mount time call to QFSAttrInfo */
	FreeXid(xid);
	return 0;		/* always return success? what if volume is no
				   longer available? */
}
コード例 #3
0
ファイル: cifsfs.c プロジェクト: Dronevery/JetsonTK1-kernel
static int
cifs_statfs(struct super_block *sb, struct kstatfs *buf)
{
	int xid, rc = -EOPNOTSUPP;
	struct cifs_sb_info *cifs_sb;
	struct cifsTconInfo *pTcon;

	xid = GetXid();

	cifs_sb = CIFS_SB(sb);
	pTcon = cifs_sb->tcon;

	buf->f_type = CIFS_MAGIC_NUMBER;

	/* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */
	buf->f_namelen = PATH_MAX;	/* PATH_MAX may be too long - it would presumably
					   be length of total path, note that some servers may be 
					   able to support more than this, but best to be safe
					   since Win2k and others can not handle very long filenames */
	buf->f_files = 0;	/* undefined */
	buf->f_ffree = 0;	/* unlimited */

#ifdef CONFIG_CIFS_EXPERIMENTAL
/* BB we could add a second check for a QFS Unix capability bit */
    if (pTcon->ses->capabilities & CAP_UNIX)
	    rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf, cifs_sb->local_nls);

    /* Only need to call the old QFSInfo if failed
    on newer one */
    if(rc)
#endif /* CIFS_EXPERIMENTAL */
	rc = CIFSSMBQFSInfo(xid, pTcon, buf, cifs_sb->local_nls);

	/*     
	   int f_type;
	   __fsid_t f_fsid;
	   int f_namelen;  */
	/* BB get from info put in tcon struct at mount time with call to QFSAttrInfo */
	FreeXid(xid);
	return 0;		/* always return success? what if volume is no longer available? */
}