From c3ca78e2174413c136d62ebdf8039580fe72b504 Mon Sep 17 00:00:00 2001 From: Steve French Date: Wed, 25 Sep 2019 00:32:13 -0500 Subject: [PATCH] smb3: pass mode bits into create calls We need to populate an ACL (security descriptor open context) on file and directory correct. This patch passes in the mode. Followon patch will build the open context and the security descriptor (from the mode) that goes in the open context. Signed-off-by: Steve French Reviewed-by: Aurelien Aptel --- fs/cifs/cifsglob.h | 6 ++++-- fs/cifs/cifsproto.h | 3 ++- fs/cifs/cifssmb.c | 3 ++- fs/cifs/inode.c | 3 ++- fs/cifs/smb2inode.c | 34 +++++++++++++++++++--------------- fs/cifs/smb2pdu.c | 20 ++++++++++++++++++++ fs/cifs/smb2proto.h | 3 ++- 7 files changed, 51 insertions(+), 21 deletions(-) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 54e2045..2e960e1 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -331,8 +331,9 @@ struct smb_version_operations { umode_t mode, struct cifs_tcon *tcon, const char *full_path, struct cifs_sb_info *cifs_sb); - int (*mkdir)(const unsigned int, struct cifs_tcon *, const char *, - struct cifs_sb_info *); + int (*mkdir)(const unsigned int xid, struct inode *inode, umode_t mode, + struct cifs_tcon *tcon, const char *name, + struct cifs_sb_info *sb); /* set info on created directory */ void (*mkdir_setinfo)(struct inode *, const char *, struct cifs_sb_info *, struct cifs_tcon *, @@ -1209,6 +1210,7 @@ struct cifs_search_info { bool smallBuf:1; /* so we know which buf_release function to call */ }; +#define ACL_NO_MODE -1 struct cifs_open_parms { struct cifs_tcon *tcon; struct cifs_sb_info *cifs_sb; diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 99b1b1e..e53e9f6 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -372,7 +372,8 @@ extern int CIFSSMBUnixSetPathInfo(const unsigned int xid, const struct nls_table *nls_codepage, int remap); -extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon, +extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode, + umode_t mode, struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb); extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb); diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index dbee213..4f554f0 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1078,7 +1078,8 @@ RmDirRetry: } int -CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, +CIFSSMBMkDir(const unsigned int xid, struct inode *inode, umode_t mode, + struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb) { int rc = 0; diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 26cdfbf..3bae2e5 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1622,13 +1622,14 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode) } /* BB add setting the equivalent of mode via CreateX w/ACLs */ - rc = server->ops->mkdir(xid, tcon, full_path, cifs_sb); + rc = server->ops->mkdir(xid, inode, mode, tcon, full_path, cifs_sb); if (rc) { cifs_dbg(FYI, "cifs_mkdir returned 0x%x\n", rc); d_drop(direntry); goto mkdir_out; } + /* TODO: skip this for smb2/smb3 */ rc = cifs_mkdir_qinfo(inode, direntry, mode, full_path, cifs_sb, tcon, xid); mkdir_out: diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c index d2a3fb7..4121ac1 100644 --- a/fs/cifs/smb2inode.c +++ b/fs/cifs/smb2inode.c @@ -51,7 +51,7 @@ static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, struct cifs_sb_info *cifs_sb, const char *full_path, __u32 desired_access, __u32 create_disposition, - __u32 create_options, void *ptr, int command, + __u32 create_options, umode_t mode, void *ptr, int command, struct cifsFileInfo *cfile) { int rc; @@ -103,6 +103,7 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, oparms.create_options |= CREATE_OPEN_BACKUP_INTENT; oparms.fid = &fid; oparms.reconnect = false; + oparms.mode = mode; memset(&open_iov, 0, sizeof(open_iov)); rqst[num_rqst].rq_iov = open_iov; @@ -478,7 +479,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, cifs_get_readable_path(tcon, full_path, &cfile); rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, create_options, - smb2_data, SMB2_OP_QUERY_INFO, cfile); + ACL_NO_MODE, smb2_data, SMB2_OP_QUERY_INFO, cfile); if (rc == -EOPNOTSUPP) { *symlink = true; create_options |= OPEN_REPARSE_POINT; @@ -486,8 +487,8 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, /* Failed on a symbolic link - query a reparse point info */ rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, - create_options, smb2_data, - SMB2_OP_QUERY_INFO, NULL); + create_options, ACL_NO_MODE, + smb2_data, SMB2_OP_QUERY_INFO, NULL); } if (rc) goto out; @@ -499,12 +500,14 @@ out: } int -smb2_mkdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, +smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode, + struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb) { return smb2_compound_op(xid, tcon, cifs_sb, name, FILE_WRITE_ATTRIBUTES, FILE_CREATE, - CREATE_NOT_FILE, NULL, SMB2_OP_MKDIR, NULL); + CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR, + NULL); } void @@ -525,8 +528,8 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name, cifs_get_writable_path(tcon, name, &cfile); tmprc = smb2_compound_op(xid, tcon, cifs_sb, name, FILE_WRITE_ATTRIBUTES, FILE_CREATE, - CREATE_NOT_FILE, &data, SMB2_OP_SET_INFO, - cfile); + CREATE_NOT_FILE, ACL_NO_MODE, + &data, SMB2_OP_SET_INFO, cfile); if (tmprc == 0) cifs_i->cifsAttrs = dosattrs; } @@ -536,7 +539,7 @@ smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb) { return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, - CREATE_NOT_FILE, + CREATE_NOT_FILE, ACL_NO_MODE, NULL, SMB2_OP_RMDIR, NULL); } @@ -546,7 +549,7 @@ smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name, { return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT, - NULL, SMB2_OP_DELETE, NULL); + ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL); } static int @@ -564,7 +567,8 @@ smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon, goto smb2_rename_path; } rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access, - FILE_OPEN, 0, smb2_to_name, command, cfile); + FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name, + command, cfile); smb2_rename_path: kfree(smb2_to_name); return rc; @@ -601,8 +605,8 @@ smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, __le64 eof = cpu_to_le64(size); return smb2_compound_op(xid, tcon, cifs_sb, full_path, - FILE_WRITE_DATA, FILE_OPEN, 0, &eof, - SMB2_OP_SET_EOF, NULL); + FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE, + &eof, SMB2_OP_SET_EOF, NULL); } int @@ -623,8 +627,8 @@ smb2_set_file_info(struct inode *inode, const char *full_path, return PTR_ERR(tlink); rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path, - FILE_WRITE_ATTRIBUTES, FILE_OPEN, 0, buf, - SMB2_OP_SET_INFO, NULL); + FILE_WRITE_ATTRIBUTES, FILE_OPEN, + 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, NULL); cifs_put_tlink(tlink); return rc; } diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index ea08e61..85f9d61 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -751,6 +751,8 @@ add_posix_context(struct kvec *iov, unsigned int *num_iovec, umode_t mode) unsigned int num = *num_iovec; iov[num].iov_base = create_posix_buf(mode); + if (mode == -1) + cifs_dbg(VFS, "illegal mode\n"); /* BB REMOVEME */ if (iov[num].iov_base == NULL) return -ENOMEM; iov[num].iov_len = sizeof(struct create_posix); @@ -2417,6 +2419,7 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock, /* File attributes ignored on open (used in create though) */ req->FileAttributes = cpu_to_le32(file_attributes); req->ShareAccess = FILE_SHARE_ALL_LE; + req->CreateDisposition = cpu_to_le32(oparms->disposition); req->CreateOptions = cpu_to_le32(oparms->create_options & CREATE_OPTIONS_MASK); req->NameOffset = cpu_to_le16(sizeof(struct smb2_create_req)); @@ -2518,6 +2521,23 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock, return rc; } + /* TODO: add handling for the mode on create */ + if (oparms->disposition == FILE_CREATE) + cifs_dbg(VFS, "mode is 0x%x\n", oparms->mode); /* BB REMOVEME */ + + if ((oparms->disposition == FILE_CREATE) && (oparms->mode != -1)) { + if (n_iov > 2) { + struct create_context *ccontext = + (struct create_context *)iov[n_iov-1].iov_base; + ccontext->Next = + cpu_to_le32(iov[n_iov-1].iov_len); + } + + /* rc = add_sd_context(iov, &n_iov, oparms->mode); */ + if (rc) + return rc; + } + if (n_iov > 2) { struct create_context *ccontext = (struct create_context *)iov[n_iov-1].iov_base; diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 67a91b1..da3a6d5 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -84,7 +84,8 @@ extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode, umode_t mode, struct cifs_tcon *tcon, const char *full_path, struct cifs_sb_info *cifs_sb); -extern int smb2_mkdir(const unsigned int xid, struct cifs_tcon *tcon, +extern int smb2_mkdir(const unsigned int xid, struct inode *inode, + umode_t mode, struct cifs_tcon *tcon, const char *name, struct cifs_sb_info *cifs_sb); extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path, struct cifs_sb_info *cifs_sb, -- 2.7.4