6.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Paulo Alcantara pc@manguebit.com
[ Upstream commit 5408990aa662bcfd6ba894734023a023a16e8729 ]
The client was sending an SMB2_CREATE request without setting OPEN_REPARSE_POINT flag thus failing the entire hardlink operation.
Fix this by setting OPEN_REPARSE_POINT in create options for SMB2_CREATE request when the source inode is a repase point.
Signed-off-by: Paulo Alcantara (SUSE) pc@manguebit.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/client/cifsglob.h | 8 +++++--- fs/smb/client/cifsproto.h | 8 +++++--- fs/smb/client/cifssmb.c | 9 +++++---- fs/smb/client/link.c | 4 ++-- fs/smb/client/smb2inode.c | 33 +++++++++++++++++++++------------ fs/smb/client/smb2proto.h | 8 +++++--- 6 files changed, 43 insertions(+), 27 deletions(-)
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 4d07b96038d8..942e6ece56b1 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -405,9 +405,11 @@ struct smb_version_operations { const char *from_name, const char *to_name, struct cifs_sb_info *cifs_sb); /* send create hardlink request */ - int (*create_hardlink)(const unsigned int, struct cifs_tcon *, - const char *, const char *, - struct cifs_sb_info *); + int (*create_hardlink)(const unsigned int xid, + struct cifs_tcon *tcon, + struct dentry *source_dentry, + const char *from_name, const char *to_name, + struct cifs_sb_info *cifs_sb); /* query symlink target */ int (*query_symlink)(const unsigned int xid, struct cifs_tcon *tcon, diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h index 5af921b400d7..9516f5732324 100644 --- a/fs/smb/client/cifsproto.h +++ b/fs/smb/client/cifsproto.h @@ -443,9 +443,11 @@ extern int CIFSSMBRenameOpenFile(const unsigned int xid, struct cifs_tcon *tcon, int netfid, const char *target_name, const struct nls_table *nls_codepage, int remap_special_chars); -extern int CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb); +int CIFSCreateHardLink(const unsigned int xid, + struct cifs_tcon *tcon, + struct dentry *source_dentry, + const char *from_name, const char *to_name, + struct cifs_sb_info *cifs_sb); extern int CIFSUnixCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon, const char *fromName, const char *toName, diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c index 5bdea01919e8..e9e33b0b3ac4 100644 --- a/fs/smb/client/cifssmb.c +++ b/fs/smb/client/cifssmb.c @@ -2530,10 +2530,11 @@ CIFSUnixCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon, return rc; }
-int -CIFSCreateHardLink(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb) +int CIFSCreateHardLink(const unsigned int xid, + struct cifs_tcon *tcon, + struct dentry *source_dentry, + const char *from_name, const char *to_name, + struct cifs_sb_info *cifs_sb) { int rc = 0; NT_RENAME_REQ *pSMB = NULL; diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c index a1da50e66fbb..3ef34218a790 100644 --- a/fs/smb/client/link.c +++ b/fs/smb/client/link.c @@ -510,8 +510,8 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode, rc = -ENOSYS; goto cifs_hl_exit; } - rc = server->ops->create_hardlink(xid, tcon, from_name, to_name, - cifs_sb); + rc = server->ops->create_hardlink(xid, tcon, old_file, + from_name, to_name, cifs_sb); if ((rc == -EIO) || (rc == -EINVAL)) rc = -EOPNOTSUPP; } diff --git a/fs/smb/client/smb2inode.c b/fs/smb/client/smb2inode.c index c3e28673e0cd..6cac0b107a2d 100644 --- a/fs/smb/client/smb2inode.c +++ b/fs/smb/client/smb2inode.c @@ -35,6 +35,18 @@ free_set_inf_compound(struct smb_rqst *rqst) SMB2_close_free(&rqst[2]); }
+static inline __u32 file_create_options(struct dentry *dentry) +{ + struct cifsInodeInfo *ci; + + if (dentry) { + ci = CIFS_I(d_inode(dentry)); + if (ci->cifsAttrs & ATTR_REPARSE) + return OPEN_REPARSE_POINT; + } + return 0; +} + /* * note: If cfile is passed, the reference to it is dropped here. * So make sure that you do not reuse cfile after return from this func. @@ -809,15 +821,9 @@ int smb2_rename_path(const unsigned int xid, const char *from_name, const char *to_name, struct cifs_sb_info *cifs_sb) { - struct cifsInodeInfo *ci; struct cifsFileInfo *cfile; - __u32 co = 0; + __u32 co = file_create_options(source_dentry);
- if (source_dentry) { - ci = CIFS_I(d_inode(source_dentry)); - if (ci->cifsAttrs & ATTR_REPARSE) - co |= OPEN_REPARSE_POINT; - } drop_cached_dir_by_name(xid, tcon, from_name, cifs_sb); cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
@@ -825,13 +831,16 @@ int smb2_rename_path(const unsigned int xid, co, DELETE, SMB2_OP_RENAME, cfile); }
-int -smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb) +int smb2_create_hardlink(const unsigned int xid, + struct cifs_tcon *tcon, + struct dentry *source_dentry, + const char *from_name, const char *to_name, + struct cifs_sb_info *cifs_sb) { + __u32 co = file_create_options(source_dentry); + return smb2_set_path_attr(xid, tcon, from_name, to_name, - cifs_sb, 0, FILE_READ_ATTRIBUTES, + cifs_sb, co, FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK, NULL); }
diff --git a/fs/smb/client/smb2proto.h b/fs/smb/client/smb2proto.h index 7cbf1a76b42d..a8084ce7fcbd 100644 --- a/fs/smb/client/smb2proto.h +++ b/fs/smb/client/smb2proto.h @@ -85,9 +85,11 @@ int smb2_rename_path(const unsigned int xid, struct dentry *source_dentry, const char *from_name, const char *to_name, struct cifs_sb_info *cifs_sb); -extern int smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, - const char *from_name, const char *to_name, - struct cifs_sb_info *cifs_sb); +int smb2_create_hardlink(const unsigned int xid, + struct cifs_tcon *tcon, + struct dentry *source_dentry, + const char *from_name, const char *to_name, + struct cifs_sb_info *cifs_sb); extern int smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, struct cifs_sb_info *cifs_sb, const unsigned char *path, char *pbuf, unsigned int *pbytes_written);