1 files changed, 104 insertions, 0 deletions
diff --git a/security/nss/lib/util/secplcy.h b/security/nss/lib/util/secplcy.h
new file mode 100644
index 000000000..6a85e03f1
--- /dev/null
+++ b/security/nss/lib/util/secplcy.h
@@ -0,0 +1,104 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __secplcy_h__
+#define __secplcy_h__
+
+#include "utilrename.h"
+
+#include "prtypes.h"
+
+/*
+** Cipher policy enforcement. This code isn't very pretty, but it accomplishes
+** the purpose of obscuring policy information from potential fortifiers. :-)
+**
+** The following routines are generic and intended for anywhere where cipher
+** policy enforcement is to be done, e.g. SSL and PKCS7&12.
+*/
+
+#define SEC_CIPHER_NOT_ALLOWED 0
+#define SEC_CIPHER_ALLOWED 1
+#define SEC_CIPHER_RESTRICTED 2 /* cipher is allowed in limited cases \
+                                   e.g. step-up */
+
+/* The length of the header string for each cipher table.
+   (It's the same regardless of whether we're using md5 strings or not.) */
+#define SEC_POLICY_HEADER_LENGTH 48
+
+/* If we're testing policy stuff, we may want to use the plaintext version */
+#define SEC_POLICY_USE_MD5_STRINGS 1
+
+#define SEC_POLICY_THIS_IS_THE \
+    "\x2a\x3a\x51\xbf\x2f\x71\xb7\x73\xaa\xca\x6b\x57\x70\xcd\xc8\x9f"
+#define SEC_POLICY_STRING_FOR_THE \
+    "\x97\x15\xe2\x70\xd2\x8a\xde\xa9\xe7\xa7\x6a\xe2\x83\xe5\xb1\xf6"
+#define SEC_POLICY_SSL_TAIL \
+    "\x70\x16\x25\xc0\x2a\xb2\x4a\xca\xb6\x67\xb1\x89\x20\xdf\x87\xca"
+#define SEC_POLICY_SMIME_TAIL \
+    "\xdf\xd4\xe7\x2a\xeb\xc4\x1b\xb5\xd8\xe5\xe0\x2a\x16\x9f\xc4\xb9"
+#define SEC_POLICY_PKCS12_TAIL \
+    "\x1c\xf8\xa4\x85\x4a\xc6\x8a\xfe\xe6\xca\x03\x72\x50\x1c\xe2\xc8"
+
+#if defined(SEC_POLICY_USE_MD5_STRINGS)
+
+/* We're not testing.
+   Use md5 checksums of the strings. */
+
+#define SEC_POLICY_SSL_HEADER \
+    SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SSL_TAIL
+
+#define SEC_POLICY_SMIME_HEADER \
+    SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SMIME_TAIL
+
+#define SEC_POLICY_PKCS12_HEADER \
+    SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_PKCS12_TAIL
+
+#else
+
+/* We're testing.
+   Use plaintext versions of the strings, for testing purposes. */
+#define SEC_POLICY_SSL_HEADER \
+    "This is the string for the SSL policy table.    "
+#define SEC_POLICY_SMIME_HEADER \
+    "This is the string for the PKCS7 policy table.  "
+#define SEC_POLICY_PKCS12_HEADER \
+    "This is the string for the PKCS12 policy table. "
+
+#endif
+
+/* Local cipher tables have to have these members at the top. */
+typedef struct _sec_cp_struct {
+    char policy_string[SEC_POLICY_HEADER_LENGTH];
+    long unused; /* placeholder for max keybits in pkcs12 struct */
+    char num_ciphers;
+    char begin_ciphers;
+    /* cipher policy settings follow. each is a char. */
+} secCPStruct;
+
+struct SECCipherFindStr {
+    /* (policy) and (ciphers) are opaque to the outside world */
+    void *policy;
+    void *ciphers;
+    long index;
+    PRBool onlyAllowed;
+};
+
+typedef struct SECCipherFindStr SECCipherFind;
+
+SEC_BEGIN_PROTOS
+
+SECCipherFind *sec_CipherFindInit(PRBool onlyAllowed,
+                                  secCPStruct *policy,
+                                  long *ciphers);
+
+long sec_CipherFindNext(SECCipherFind *find);
+
+char sec_IsCipherAllowed(long cipher, secCPStruct *policies,
+                         long *ciphers);
+
+void sec_CipherFindEnd(SECCipherFind *find);
+
+SEC_END_PROTOS
+
+#endif /* __SECPLCY_H__ */