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cifs: Use smb 2 - 3 and cifsacl mount options setacl function
Added set acl function. Very similar to set cifs acl function for smb1. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
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dac953401c
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366ed846df
1 changed files with 60 additions and 3 deletions
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@ -1370,6 +1370,63 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
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return pntsd;
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}
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#ifdef CONFIG_CIFS_ACL
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static int
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set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
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struct inode *inode, const char *path, int aclflag)
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{
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u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
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unsigned int xid;
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int rc, access_flags = 0;
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struct cifs_tcon *tcon;
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struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
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struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
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struct cifs_fid fid;
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struct cifs_open_parms oparms;
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__le16 *utf16_path;
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cifs_dbg(FYI, "set smb3 acl for path %s\n", path);
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if (IS_ERR(tlink))
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return PTR_ERR(tlink);
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tcon = tlink_tcon(tlink);
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xid = get_xid();
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if (backup_cred(cifs_sb))
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oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
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else
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oparms.create_options = 0;
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if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP)
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access_flags = WRITE_OWNER;
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else
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access_flags = WRITE_DAC;
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utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
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if (!utf16_path)
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return -ENOMEM;
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oparms.tcon = tcon;
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oparms.desired_access = access_flags;
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oparms.disposition = FILE_OPEN;
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oparms.path = path;
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oparms.fid = &fid;
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oparms.reconnect = false;
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rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
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kfree(utf16_path);
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if (!rc) {
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rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
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fid.volatile_fid, pnntsd, acllen, aclflag);
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SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
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}
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cifs_put_tlink(tlink);
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free_xid(xid);
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return rc;
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}
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#endif /* CIFS_ACL */
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/* Retrieve an ACL from the server */
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static struct cifs_ntsd *
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get_smb2_acl(struct cifs_sb_info *cifs_sb,
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@ -2498,7 +2555,7 @@ struct smb_version_operations smb20_operations = {
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#ifdef CONFIG_CIFS_ACL
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.get_acl = get_smb2_acl,
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.get_acl_by_fid = get_smb2_acl_by_fid,
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/* .set_acl = set_smb3_acl, */
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.set_acl = set_smb2_acl,
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#endif /* CIFS_ACL */
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};
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@ -2587,7 +2644,7 @@ struct smb_version_operations smb21_operations = {
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#ifdef CONFIG_CIFS_ACL
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.get_acl = get_smb2_acl,
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.get_acl_by_fid = get_smb2_acl_by_fid,
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/* .set_acl = set_smb3_acl, */
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.set_acl = set_smb2_acl,
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#endif /* CIFS_ACL */
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};
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@ -2686,7 +2743,7 @@ struct smb_version_operations smb30_operations = {
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#ifdef CONFIG_CIFS_ACL
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.get_acl = get_smb2_acl,
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.get_acl_by_fid = get_smb2_acl_by_fid,
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/* .set_acl = set_smb3_acl, */
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.set_acl = set_smb2_acl,
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#endif /* CIFS_ACL */
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};
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