4  * Copyright (C) 2007-2008 Tresys Technology, LLC
6  *  This library is free software; you can redistribute it and/or
11  *  This library is distributed in the hope that it will be useful,
18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
21 #include "test-downgrade.h"
34 #define POLICY_BIN_HI	"policies/test-downgrade/policy.hi"
35 #define POLICY_BIN_LO	"policies/test-downgrade/policy.lo"
53 		return -1;  in downgrade_test_init()
100  * Tests the backward compatibility of MLS and Non-MLS binary policy versions.
106 		        "\nError during downgrade testing of Non-MLS policy\n");  in test_downgrade()
117  * Input: 0 for Non-MLS policy and 1 for MLS policy downgrade testing
122  *              A binary policy is read into the policydb structure, the
123  *              policy version is decreased by a specific amount, written
124  *              back out and then read back in again.  The process is
125  *              repeated until the minimum policy version is reached.
132 	/* Reset policydb for re-use */  in do_downgrade_test()
138 		fprintf(stderr, "error reading %spolicy binary\n", mls ? "mls " : "");  in do_downgrade_test()
139 		CU_FAIL("Unable to read the binary policy");  in do_downgrade_test()
140 		return -1;  in do_downgrade_test()
146 	for (hi = policydb.policyvers; hi >= POLICYDB_VERSION_MIN; hi--) {  in do_downgrade_test()
151 		for (lo = hi - 1; lo >= POLICYDB_VERSION_MIN; lo--) {  in do_downgrade_test()
156 			/* Write out modified binary policy */  in do_downgrade_test()
159 				 * Error from MLS to pre-MLS is expected due  in do_downgrade_test()
160 				 * to MLS re-implementation in version 19.  in do_downgrade_test()
165 …fprintf(stderr, "error writing %spolicy binary, version %d (downgraded from %d)\n", mls ? "mls " :…  in do_downgrade_test()
166 				CU_FAIL("Failed to write downgraded binary policy");  in do_downgrade_test()
167 					return -1;  in do_downgrade_test()
174 				return -1;  in do_downgrade_test()
177 …fprintf(stderr, "error reading %spolicy binary, version %d (downgraded from %d)\n", mls ? "mls " :…  in do_downgrade_test()
178 				CU_FAIL("Unable to read downgraded binary policy");  in do_downgrade_test()
179 				return -1;  in do_downgrade_test()
193  * Input: char * which is the path to the file containing the binary policy
195  * Output: Returns 0 upon success.  Upon failure, -1 is returned.
196  *	   Possible failures are, filename with given path does not exist,
200  * Description:  Get a filename, open file and read binary policy into policydb
203 int read_binary_policy(const char *path, policydb_t *p)  in read_binary_policy()  argument
209 	/* Open the binary policy file */  in read_binary_policy()
210 	if ((in_fp = fopen(path, "rb")) == NULL) {  in read_binary_policy()
211 		fprintf(stderr, "Unable to open %s: %s\n", path,  in read_binary_policy()
213 		return -1;  in read_binary_policy()
216 	/* Read in the binary policy.  */  in read_binary_policy()
229  * Input: char * which is the path to the file containing the binary policy
231  * Output: Returns 0 upon success.  Upon failure, -1 is returned.
232  *	   Possible failures are, filename with given path does not exist,
236  * Description:  open file and write the binary policy from policydb structure.
238 int write_binary_policy(const char *path, policydb_t *p)  in write_binary_policy()  argument
249 		return -1;  in write_binary_policy()
253 	/* Open the binary policy file for writing */  in write_binary_policy()
254 	if ((out_fp = fopen(path, "w" )) == NULL) {  in write_binary_policy()
255 		fprintf(stderr, "Unable to open %s: %s\n", path,  in write_binary_policy()
258 		return -1;  in write_binary_policy()
261 	/* Write the binary policy */  in write_binary_policy()