add the 'ead' package (emergency access daemon), which can provide remote access to your device, even if the ip and firewall settings are broken

SVN-Revision: 13738

1 files changed, 138 insertions, 0 deletions

diff --git a/package/ead/src/tinysrp/t_server.h b/package/ead/src/tinysrp/t_server.h
new file mode 100644
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+++ b/package/ead/src/tinysrp/t_server.h
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+/*
+ * Copyright (c) 1997-1999  The Stanford SRP Authentication Project
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
+ * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * In addition, the following conditions apply:
+ *
+ * 1. Any software that incorporates the SRP authentication technology
+ *    must display the following acknowlegment:
+ *    "This product uses the 'Secure Remote Password' cryptographic
+ *     authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)."
+ *
+ * 2. Any software that incorporates all or part of the SRP distribution
+ *    itself must also display the following acknowledgment:
+ *    "This product includes software developed by Tom Wu and Eugene
+ *     Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)."
+ *
+ * 3. Redistributions in source or binary form must retain an intact copy
+ *    of this copyright notice and list of conditions.
+ */
+
+#ifndef T_SERVER_H
+#define T_SERVER_H
+
+#include "t_sha.h"
+
+#if     !defined(P)
+#ifdef  __STDC__
+#define P(x)    x
+#else
+#define P(x)    ()
+#endif
+#endif
+
+#ifndef _DLLDECL
+#define _DLLDECL
+
+#ifdef MSVC15   /* MSVC1.5 support for 16 bit apps */
+#define _MSVC15EXPORT _export
+#define _MSVC20EXPORT
+#define _DLLAPI _export _pascal
+#define _TYPE(a) a _MSVC15EXPORT
+#define DLLEXPORT 1
+
+#elif MSVC20
+#define _MSVC15EXPORT
+#define _MSVC20EXPORT _declspec(dllexport)
+#define _DLLAPI
+#define _TYPE(a) _MSVC20EXPORT a
+#define DLLEXPORT 1
+
+#else                   /* Default, non-dll.  Use this for Unix or DOS */
+#define _MSVC15DEXPORT
+#define _MSVC20EXPORT
+#define _DLLAPI
+#define _TYPE(a) a
+#endif
+#endif
+
+#define BLEN 32
+
+struct t_server {
+  int index;
+  struct t_num n;
+  struct t_num g;
+  struct t_num v;
+  struct t_num s;
+
+  struct t_num b;
+  struct t_num B;
+
+  SHA1_CTX oldhash, hash, oldckhash, ckhash;
+
+  unsigned char session_key[SESSION_KEY_LEN];
+  unsigned char session_response[RESPONSE_LEN];
+
+  unsigned char nbuf[MAXPARAMLEN], gbuf[MAXPARAMLEN], vbuf[MAXPARAMLEN];
+  unsigned char saltbuf[MAXSALTLEN], bbuf[BLEN], Bbuf[MAXPARAMLEN];
+};
+
+/*
+ * SRP server-side negotiation
+ *
+ * This code negotiates the server side of an SRP exchange.
+ * "t_serveropen" accepts a username (sent by the client), a pointer
+ *   to an open password file, and a pointer to an open configuration
+ *   file.  The server should then call...
+ * "t_servergenexp" will generate a random 256-bit exponent and
+ *   raise g (from the configuration file) to that power, returning
+ *   the result.  This result should be sent to the client as y(p).
+ * "t_servergetkey" accepts the exponential w(p), which should be
+ *   sent by the client, and computes the 256-bit session key.
+ *   This data should be saved before the session is closed.
+ * "t_serverresponse" computes the session key proof as SHA(w(p), K).
+ * "t_serverclose" closes the session and frees its memory.
+ *
+ * Note that authentication is not performed per se; it is up
+ * to either/both sides of the protocol to now verify securely
+ * that their session keys agree in order to establish authenticity.
+ * One possible way is through "oracle hashing"; one side sends
+ * r, the other replies with H(r,K), where H() is a hash function.
+ *
+ * t_serverresponse and t_serververify now implement a version of
+ * the session-key verification described above.
+ */
+_TYPE( struct t_server * )
+  t_serveropen P((const char *));
+_TYPE( struct t_server * )
+  t_serveropenfromfiles P((const char *, struct t_pw *, struct t_conf *));
+_TYPE( struct t_server * )
+  t_serveropenraw P((struct t_pwent *, struct t_confent *));
+_TYPE( struct t_num * ) t_servergenexp P((struct t_server *));
+_TYPE( unsigned char * ) t_servergetkey P((struct t_server *, struct t_num *));
+_TYPE( int ) t_serververify P((struct t_server *, unsigned char *));
+_TYPE( unsigned char * ) t_serverresponse P((struct t_server *));
+_TYPE( void ) t_serverclose P((struct t_server *));
+
+#endif