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From: Todd Miller <millert@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 110131 for review
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http://perforce.freebsd.org/chv.cgi?CH=110131

Change 110131 by millert@millert_macbook on 2006/11/16 21:33:52

	Implement mpo_file_check_fcntl

Affected files ...

.. //depot/projects/trustedbsd/sedarwin8/policies/sedarwin/sedarwin/sebsd.c#46 edit

Differences ...

==== //depot/projects/trustedbsd/sedarwin8/policies/sedarwin/sedarwin/sebsd.c#46 (text+ko) ====

@@ -3146,6 +3146,35 @@
 }
 
 static int
+sebsd_file_check_fcntl(struct ucred *cred, struct fileglob *fg,
+    struct label *fglabel, int cmd, user_long_t arg)
+{
+	u_int32_t av = 0;
+
+	switch (cmd) {
+	case F_DUPFD:
+	case F_SETLK:
+	case F_SETLKW:
+	case F_GETLK:
+	case F_SETSIZE:
+		/* These are handled by their own entry points */
+		return (0);
+	case F_SETFL:
+		if (arg & O_APPEND)
+			av = FILE__WRITE;
+		break;
+	case F_PREALLOCATE:
+		av = FILE__WRITE;
+		break;
+	default:
+		/* Everything else just checks FD__USE */
+		break;
+	}
+
+	return (file_has_perm(cred, fg, fglabel, av));
+}
+
+static int
 sebsd_file_check_get_offset(struct ucred *cred, struct fileglob *fg,
     struct label *fglabel)
 {
@@ -3517,6 +3546,7 @@
 	.mpo_devfs_label_update = sebsd_devfs_update,
 	.mpo_file_check_change_offset = sebsd_file_check_change_offset,
 	.mpo_file_check_dup = sebsd_file_check_dup,
+	.mpo_file_check_fcntl = sebsd_file_check_fcntl,
 	.mpo_file_check_get_offset = sebsd_file_check_get_offset,
 	.mpo_file_check_inherit = sebsd_file_check_receive,
 	.mpo_file_check_ioctl = sebsd_file_check_ioctl,