Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 151 insertions, 0 deletions

diff --git a/scripts/selinux/mdp/mdp.c b/scripts/selinux/mdp/mdp.c
new file mode 100644
index 000000000..6d51b74bc
--- /dev/null
+++ b/scripts/selinux/mdp/mdp.c
@@ -0,0 +1,151 @@
+/*
+ *
+ * mdp - make dummy policy
+ *
+ * When pointed at a kernel tree, builds a dummy policy for that kernel
+ * with exactly one type with full rights to itself.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2006
+ *
+ * Authors: Serge E. Hallyn <serue@us.ibm.com>
+ */
+
+
+/* NOTE: we really do want to use the kernel headers here */
+#define __EXPORTED_HEADERS__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+static void usage(char *name)
+{
+	printf("usage: %s [-m] policy_file context_file\n", name);
+	exit(1);
+}
+
+/* Class/perm mapping support */
+struct security_class_mapping {
+	const char *name;
+	const char *perms[sizeof(unsigned) * 8 + 1];
+};
+
+#include "classmap.h"
+#include "initial_sid_to_string.h"
+
+int main(int argc, char *argv[])
+{
+	int i, j, mls = 0;
+	int initial_sid_to_string_len;
+	char **arg, *polout, *ctxout;
+
+	FILE *fout;
+
+	if (argc < 3)
+		usage(argv[0]);
+	arg = argv+1;
+	if (argc==4 && strcmp(argv[1], "-m") == 0) {
+		mls = 1;
+		arg++;
+	}
+	polout = *arg++;
+	ctxout = *arg;
+
+	fout = fopen(polout, "w");
+	if (!fout) {
+		printf("Could not open %s for writing\n", polout);
+		usage(argv[0]);
+	}
+
+	/* print out the classes */
+	for (i = 0; secclass_map[i].name; i++)
+		fprintf(fout, "class %s\n", secclass_map[i].name);
+	fprintf(fout, "\n");
+
+	initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *);
+	/* print out the sids */
+	for (i = 1; i < initial_sid_to_string_len; i++)
+		fprintf(fout, "sid %s\n", initial_sid_to_string[i]);
+	fprintf(fout, "\n");
+
+	/* print out the class permissions */
+	for (i = 0; secclass_map[i].name; i++) {
+		struct security_class_mapping *map = &secclass_map[i];
+		fprintf(fout, "class %s\n", map->name);
+		fprintf(fout, "{\n");
+		for (j = 0; map->perms[j]; j++)
+			fprintf(fout, "\t%s\n", map->perms[j]);
+		fprintf(fout, "}\n\n");
+	}
+	fprintf(fout, "\n");
+
+	/* NOW PRINT OUT MLS STUFF */
+	if (mls) {
+		printf("MLS not yet implemented\n");
+		exit(1);
+	}
+
+	/* types, roles, and allows */
+	fprintf(fout, "type base_t;\n");
+	fprintf(fout, "role base_r;\n");
+	fprintf(fout, "role base_r types { base_t };\n");
+	for (i = 0; secclass_map[i].name; i++)
+		fprintf(fout, "allow base_t base_t:%s *;\n",
+			secclass_map[i].name);
+	fprintf(fout, "user user_u roles { base_r };\n");
+	fprintf(fout, "\n");
+
+	/* default sids */
+	for (i = 1; i < initial_sid_to_string_len; i++)
+		fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]);
+	fprintf(fout, "\n");
+
+	fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr ext4 user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr jffs2 user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_xattr gfs2 user_u:base_r:base_t;\n");
+
+	fprintf(fout, "fs_use_task eventpollfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n");
+
+	fprintf(fout, "fs_use_trans mqueue user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_trans hugetlbfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n");
+	fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n");
+
+	fprintf(fout, "genfscon proc / user_u:base_r:base_t\n");
+
+	fclose(fout);
+
+	fout = fopen(ctxout, "w");
+	if (!fout) {
+		printf("Wrote policy, but cannot open %s for writing\n", ctxout);
+		usage(argv[0]);
+	}
+	fprintf(fout, "/ user_u:base_r:base_t\n");
+	fprintf(fout, "/.* user_u:base_r:base_t\n");
+	fclose(fout);
+
+	return 0;
+}