From d6e2f2a4c892e4d131ab4fa5d212546c47dd3c40 Mon Sep 17 00:00:00 2001 From: Steve French Date: Tue, 15 Nov 2005 16:43:39 -0800 Subject: [CIFS] Recognize properly symlinks and char/blk devices (not just FIFOs) created by SFU (part 1 of 2). Signed-off-by: Steve French --- fs/cifs/inode.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 64 insertions(+), 10 deletions(-) (limited to 'fs/cifs/inode.c') diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 941b247fceb..ba9eae56d01 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -97,9 +97,9 @@ int cifs_get_inode_info_unix(struct inode **pinode, inode = *pinode; cifsInfo = CIFS_I(inode); - cFYI(1, (" Old time %ld ", cifsInfo->time)); + cFYI(1, ("Old time %ld ", cifsInfo->time)); cifsInfo->time = jiffies; - cFYI(1, (" New time %ld ", cifsInfo->time)); + cFYI(1, ("New time %ld ", cifsInfo->time)); /* this is ok to set on every inode revalidate */ atomic_set(&cifsInfo->inUse,1); @@ -195,6 +195,55 @@ int cifs_get_inode_info_unix(struct inode **pinode, return rc; } +static int decode_sfu_inode(struct inode * inode, __u64 size, + const unsigned char *path, + struct cifs_sb_info *cifs_sb, int xid) +{ + int rc; + int oplock = FALSE; + __u16 netfid; + struct cifsTconInfo *pTcon = cifs_sb->tcon; + char buf[8]; + unsigned int bytes_read; + char * pbuf; + + pbuf = buf; + + if(size == 0) { + inode->i_mode |= S_IFIFO; + return 0; + } else if (size < 8) { + return -EINVAL; /* EOPNOTSUPP? */ + } + + rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ, + CREATE_NOT_DIR, &netfid, &oplock, NULL, + cifs_sb->local_nls, + cifs_sb->mnt_cifs_flags & + CIFS_MOUNT_MAP_SPECIAL_CHR); + if (rc==0) { + /* Read header */ + rc = CIFSSMBRead(xid, pTcon, + netfid, + 8 /* length */, 0 /* offset */, + &bytes_read, &pbuf); + if((rc == 0) && (bytes_read == 8)) { + /* if memcmp(IntxCHR\000, pbuf, 8) + else if memcmp(IntxBLK\000, pbuf, 8) + else if memcmp(IntxLNK\001, pbuf, 8) */ + } + + CIFSSMBClose(xid, pTcon, netfid); + + + /* inode->i_rdev = MKDEV(le64_to_cpu(DevMajor), + le64_to_cpu(DevMinor) & MINORMASK);*/ +/* inode->i_mode |= S_IFBLK; */ + } + return rc; + +} + int cifs_get_inode_info(struct inode **pinode, const unsigned char *search_path, FILE_ALL_INFO *pfindData, struct super_block *sb, int xid) @@ -207,7 +256,7 @@ int cifs_get_inode_info(struct inode **pinode, char *buf = NULL; pTcon = cifs_sb->tcon; - cFYI(1,("Getting info on %s ", search_path)); + cFYI(1,("Getting info on %s", search_path)); if ((pfindData == NULL) && (*pinode != NULL)) { if (CIFS_I(*pinode)->clientCanCacheRead) { @@ -345,10 +394,15 @@ int cifs_get_inode_info(struct inode **pinode, (pfindData->EndOfFile == 0)) { inode->i_mode = cifs_sb->mnt_file_mode; inode->i_mode |= S_IFIFO; -/* BB Finish for SFU style symlinks and devies */ -/* } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && - (cifsInfo->cifsAttrs & ATTR_SYSTEM) && ) */ - +/* BB Finish for SFU style symlinks and devices */ + } else if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) && + (cifsInfo->cifsAttrs & ATTR_SYSTEM)) { + if (decode_sfu_inode(inode, + le64_to_cpu(pfindData->EndOfFile), + search_path, + cifs_sb, xid)) { + cFYI(1,("Unrecognized sfu inode type")); + } } else { inode->i_mode |= S_IFREG; /* treat the dos attribute of read-only as read-only @@ -382,7 +436,7 @@ int cifs_get_inode_info(struct inode **pinode, } if (S_ISREG(inode->i_mode)) { - cFYI(1, (" File inode ")); + cFYI(1, ("File inode")); inode->i_op = &cifs_file_inode_ops; if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL) @@ -400,11 +454,11 @@ int cifs_get_inode_info(struct inode **pinode, 4096 + MAX_CIFS_HDR_SIZE) inode->i_data.a_ops->readpages = NULL; } else if (S_ISDIR(inode->i_mode)) { - cFYI(1, (" Directory inode ")); + cFYI(1, ("Directory inode")); inode->i_op = &cifs_dir_inode_ops; inode->i_fop = &cifs_dir_ops; } else if (S_ISLNK(inode->i_mode)) { - cFYI(1, (" Symbolic Link inode ")); + cFYI(1, ("Symbolic Link inode")); inode->i_op = &cifs_symlink_inode_ops; } else { init_special_inode(inode, inode->i_mode, -- cgit v1.2.3-18-g5258