diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-01 18:52:45 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-01 18:52:45 (GMT) |
commit | 0f44bc36ba1cddbd34371110c4ef8f0800c8d465 (patch) | |
tree | ce5f664e91af8bc0988830acdacbba5080d9c5f3 /fs/cifs/inode.c | |
parent | efc518eb318c4d776933c23e7b82c2e5402b62de (diff) | |
parent | a9a315d41407cd1079eb815f4adae897cc08b0d2 (diff) | |
download | linux-0f44bc36ba1cddbd34371110c4ef8f0800c8d465.tar.xz |
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"A set of cifs fixes (mostly for symlinks, and SMB2 xattrs) and
cleanups"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix check for regular file in couldbe_mf_symlink()
[CIFS] Fix SMB2 mounts so they don't try to set or get xattrs via cifs
CIFS: Cleanup cifs open codepath
CIFS: Remove extra indentation in cifs_sfu_type
CIFS: Cleanup cifs_mknod
CIFS: Cleanup CIFSSMBOpen
cifs: Add support for follow_link on dfs shares under posix extensions
cifs: move unix extension call to cifs_query_symlink()
cifs: Re-order M-F Symlink code
cifs: Add create MFSymlinks to protocol ops struct
cifs: use protocol specific call for query_mf_symlink()
cifs: Rename MF symlink function names
cifs: Rename and cleanup open_query_close_cifs_symlink()
cifs: Fix memory leak in cifs_hardlink()
Diffstat (limited to 'fs/cifs/inode.c')
-rw-r--r-- | fs/cifs/inode.c | 178 |
1 files changed, 101 insertions, 77 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 49719b8..9cb9679 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -383,10 +383,10 @@ int cifs_get_inode_info_unix(struct inode **pinode, /* check for Minshall+French symlinks */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) { - int tmprc = CIFSCheckMFSymlink(xid, tcon, cifs_sb, &fattr, - full_path); + int tmprc = check_mf_symlink(xid, tcon, cifs_sb, &fattr, + full_path); if (tmprc) - cifs_dbg(FYI, "CIFSCheckMFSymlink: %d\n", tmprc); + cifs_dbg(FYI, "check_mf_symlink: %d\n", tmprc); } if (*pinode == NULL) { @@ -404,18 +404,20 @@ int cifs_get_inode_info_unix(struct inode **pinode, } static int -cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, +cifs_sfu_type(struct cifs_fattr *fattr, const char *path, struct cifs_sb_info *cifs_sb, unsigned int xid) { int rc; int oplock = 0; - __u16 netfid; struct tcon_link *tlink; struct cifs_tcon *tcon; + struct cifs_fid fid; + struct cifs_open_parms oparms; struct cifs_io_parms io_parms; char buf[24]; unsigned int bytes_read; char *pbuf; + int buf_type = CIFS_NO_BUFFER; pbuf = buf; @@ -436,62 +438,69 @@ cifs_sfu_type(struct cifs_fattr *fattr, const unsigned char *path, return PTR_ERR(tlink); tcon = tlink_tcon(tlink); - rc = CIFSSMBOpen(xid, tcon, 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) { - int buf_type = CIFS_NO_BUFFER; - /* Read header */ - io_parms.netfid = netfid; - io_parms.pid = current->tgid; - io_parms.tcon = tcon; - io_parms.offset = 0; - io_parms.length = 24; - rc = CIFSSMBRead(xid, &io_parms, &bytes_read, &pbuf, - &buf_type); - if ((rc == 0) && (bytes_read >= 8)) { - if (memcmp("IntxBLK", pbuf, 8) == 0) { - cifs_dbg(FYI, "Block device\n"); - fattr->cf_mode |= S_IFBLK; - fattr->cf_dtype = DT_BLK; - if (bytes_read == 24) { - /* we have enough to decode dev num */ - __u64 mjr; /* major */ - __u64 mnr; /* minor */ - mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); - mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); - fattr->cf_rdev = MKDEV(mjr, mnr); - } - } else if (memcmp("IntxCHR", pbuf, 8) == 0) { - cifs_dbg(FYI, "Char device\n"); - fattr->cf_mode |= S_IFCHR; - fattr->cf_dtype = DT_CHR; - if (bytes_read == 24) { - /* we have enough to decode dev num */ - __u64 mjr; /* major */ - __u64 mnr; /* minor */ - mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); - mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); - fattr->cf_rdev = MKDEV(mjr, mnr); - } - } else if (memcmp("IntxLNK", pbuf, 7) == 0) { - cifs_dbg(FYI, "Symlink\n"); - fattr->cf_mode |= S_IFLNK; - fattr->cf_dtype = DT_LNK; - } else { - fattr->cf_mode |= S_IFREG; /* file? */ - fattr->cf_dtype = DT_REG; - rc = -EOPNOTSUPP; + oparms.tcon = tcon; + oparms.cifs_sb = cifs_sb; + oparms.desired_access = GENERIC_READ; + oparms.create_options = CREATE_NOT_DIR; + oparms.disposition = FILE_OPEN; + oparms.path = path; + oparms.fid = &fid; + oparms.reconnect = false; + + rc = CIFS_open(xid, &oparms, &oplock, NULL); + if (rc) { + cifs_put_tlink(tlink); + return rc; + } + + /* Read header */ + io_parms.netfid = fid.netfid; + io_parms.pid = current->tgid; + io_parms.tcon = tcon; + io_parms.offset = 0; + io_parms.length = 24; + + rc = CIFSSMBRead(xid, &io_parms, &bytes_read, &pbuf, &buf_type); + if ((rc == 0) && (bytes_read >= 8)) { + if (memcmp("IntxBLK", pbuf, 8) == 0) { + cifs_dbg(FYI, "Block device\n"); + fattr->cf_mode |= S_IFBLK; + fattr->cf_dtype = DT_BLK; + if (bytes_read == 24) { + /* we have enough to decode dev num */ + __u64 mjr; /* major */ + __u64 mnr; /* minor */ + mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); + mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); + fattr->cf_rdev = MKDEV(mjr, mnr); } + } else if (memcmp("IntxCHR", pbuf, 8) == 0) { + cifs_dbg(FYI, "Char device\n"); + fattr->cf_mode |= S_IFCHR; + fattr->cf_dtype = DT_CHR; + if (bytes_read == 24) { + /* we have enough to decode dev num */ + __u64 mjr; /* major */ + __u64 mnr; /* minor */ + mjr = le64_to_cpu(*(__le64 *)(pbuf+8)); + mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); + fattr->cf_rdev = MKDEV(mjr, mnr); + } + } else if (memcmp("IntxLNK", pbuf, 7) == 0) { + cifs_dbg(FYI, "Symlink\n"); + fattr->cf_mode |= S_IFLNK; + fattr->cf_dtype = DT_LNK; } else { - fattr->cf_mode |= S_IFREG; /* then it is a file */ + fattr->cf_mode |= S_IFREG; /* file? */ fattr->cf_dtype = DT_REG; - rc = -EOPNOTSUPP; /* or some unknown SFU type */ + rc = -EOPNOTSUPP; } - CIFSSMBClose(xid, tcon, netfid); + } else { + fattr->cf_mode |= S_IFREG; /* then it is a file */ + fattr->cf_dtype = DT_REG; + rc = -EOPNOTSUPP; /* or some unknown SFU type */ } + CIFSSMBClose(xid, tcon, fid.netfid); cifs_put_tlink(tlink); return rc; } @@ -800,10 +809,10 @@ cifs_get_inode_info(struct inode **inode, const char *full_path, /* check for Minshall+French symlinks */ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) { - tmprc = CIFSCheckMFSymlink(xid, tcon, cifs_sb, &fattr, - full_path); + tmprc = check_mf_symlink(xid, tcon, cifs_sb, &fattr, + full_path); if (tmprc) - cifs_dbg(FYI, "CIFSCheckMFSymlink: %d\n", tmprc); + cifs_dbg(FYI, "check_mf_symlink: %d\n", tmprc); } if (!*inode) { @@ -1032,7 +1041,8 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, { int oplock = 0; int rc; - __u16 netfid; + struct cifs_fid fid; + struct cifs_open_parms oparms; struct inode *inode = dentry->d_inode; struct cifsInodeInfo *cifsInode = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); @@ -1055,10 +1065,16 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, goto out; } - rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN, - DELETE|FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR, - &netfid, &oplock, NULL, cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); + oparms.tcon = tcon; + oparms.cifs_sb = cifs_sb; + oparms.desired_access = DELETE | FILE_WRITE_ATTRIBUTES; + oparms.create_options = CREATE_NOT_DIR; + oparms.disposition = FILE_OPEN; + oparms.path = full_path; + oparms.fid = &fid; + oparms.reconnect = false; + + rc = CIFS_open(xid, &oparms, &oplock, NULL); if (rc != 0) goto out; @@ -1079,7 +1095,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, goto out_close; } info_buf->Attributes = cpu_to_le32(dosattr); - rc = CIFSSMBSetFileInfo(xid, tcon, info_buf, netfid, + rc = CIFSSMBSetFileInfo(xid, tcon, info_buf, fid.netfid, current->tgid); /* although we would like to mark the file hidden if that fails we will still try to rename it */ @@ -1090,7 +1106,8 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, } /* rename the file */ - rc = CIFSSMBRenameOpenFile(xid, tcon, netfid, NULL, cifs_sb->local_nls, + rc = CIFSSMBRenameOpenFile(xid, tcon, fid.netfid, NULL, + cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (rc != 0) { @@ -1100,7 +1117,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, /* try to set DELETE_ON_CLOSE */ if (!cifsInode->delete_pending) { - rc = CIFSSMBSetFileDisposition(xid, tcon, true, netfid, + rc = CIFSSMBSetFileDisposition(xid, tcon, true, fid.netfid, current->tgid); /* * some samba versions return -ENOENT when we try to set the @@ -1120,7 +1137,7 @@ cifs_rename_pending_delete(const char *full_path, struct dentry *dentry, } out_close: - CIFSSMBClose(xid, tcon, netfid); + CIFSSMBClose(xid, tcon, fid.netfid); out: kfree(info_buf); cifs_put_tlink(tlink); @@ -1132,13 +1149,13 @@ out: * them anyway. */ undo_rename: - CIFSSMBRenameOpenFile(xid, tcon, netfid, dentry->d_name.name, + CIFSSMBRenameOpenFile(xid, tcon, fid.netfid, dentry->d_name.name, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); undo_setattr: if (dosattr != origattr) { info_buf->Attributes = cpu_to_le32(origattr); - if (!CIFSSMBSetFileInfo(xid, tcon, info_buf, netfid, + if (!CIFSSMBSetFileInfo(xid, tcon, info_buf, fid.netfid, current->tgid)) cifsInode->cifsAttrs = origattr; } @@ -1549,7 +1566,8 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry, struct tcon_link *tlink; struct cifs_tcon *tcon; struct TCP_Server_Info *server; - __u16 srcfid; + struct cifs_fid fid; + struct cifs_open_parms oparms; int oplock, rc; tlink = cifs_sb_tlink(cifs_sb); @@ -1576,17 +1594,23 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry, if (to_dentry->d_parent != from_dentry->d_parent) goto do_rename_exit; + oparms.tcon = tcon; + oparms.cifs_sb = cifs_sb; /* open the file to be renamed -- we need DELETE perms */ - rc = CIFSSMBOpen(xid, tcon, from_path, FILE_OPEN, DELETE, - CREATE_NOT_DIR, &srcfid, &oplock, NULL, - cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); + oparms.desired_access = DELETE; + oparms.create_options = CREATE_NOT_DIR; + oparms.disposition = FILE_OPEN; + oparms.path = from_path; + oparms.fid = &fid; + oparms.reconnect = false; + + rc = CIFS_open(xid, &oparms, &oplock, NULL); if (rc == 0) { - rc = CIFSSMBRenameOpenFile(xid, tcon, srcfid, + rc = CIFSSMBRenameOpenFile(xid, tcon, fid.netfid, (const char *) to_dentry->d_name.name, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); - CIFSSMBClose(xid, tcon, srcfid); + CIFSSMBClose(xid, tcon, fid.netfid); } do_rename_exit: cifs_put_tlink(tlink); |