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[CIFS] CIFS support for named pipes (part 1)

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This allows cifs to mount to ipc shares (IPC$)
which will allow user space applications to
layer over authenticated cifs connections
(useful for Wine and others that would want
to put DCE/RPC over CIFS or run CIFS named
pipes)

Acked-by: Rob Shearman <rob@codeweavers.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French
2007-09-28 22:28:55 +00:00
parent 407f61a2b4
commit 7f8ed420f8
5 changed files with 37 additions and 8 deletions
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22
fs/cifs/inode.c
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@ -115,7 +115,7 @@ int cifs_get_inode_info_unix(struct inode **pinode,
inode->i_mode = le64_to_cpu(findData.Permissions);
/* since we set the inode type below we need to mask off
to avoid strange results if bits set above */
inode->i_mode &= ~S_IFMT;
inode->i_mode &= ~S_IFMT;
if (type == UNIX_FILE) {
inode->i_mode |= S_IFREG;
} else if (type == UNIX_SYMLINK) {
@ -575,19 +575,33 @@ int cifs_get_inode_info(struct inode **pinode,
return rc;
}
static const struct inode_operations cifs_ipc_inode_ops = {
.lookup = cifs_lookup,
};
/* gets root inode */
void cifs_read_inode(struct inode *inode)
{
int xid;
int xid, rc;
struct cifs_sb_info *cifs_sb;
cifs_sb = CIFS_SB(inode->i_sb);
xid = GetXid();
if (cifs_sb->tcon->unix_ext)
cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
else
cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid);
rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid);
if (rc && cifs_sb->tcon->ipc) {
cFYI(1, ("ipc connection - fake read inode"));
inode->i_mode |= S_IFDIR;
inode->i_nlink = 2;
inode->i_op = &cifs_ipc_inode_ops;
inode->i_fop = &simple_dir_operations;
inode->i_uid = cifs_sb->mnt_uid;
inode->i_gid = cifs_sb->mnt_gid;
}
/* can not call macro FreeXid here since in a void func */
_FreeXid(xid);
}