+/*
+Copyright (c) 2013 Eugene Crosser
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must
+ not claim that you wrote the original software. If you use this
+ software in a product, an acknowledgment in the product documentation
+ would be appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must
+ not be misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
#ifndef _AUTHOBJ_H
#define _AUTHOBJ_H
-int make_authobj(const char *id, const char *pass, const char *nonce,
- const unsigned char *secret, const int secsize,
- const unsigned char *payload, const int paysize,
- unsigned char *buffer, int *bufsize);
-int parse_authobj(const unsigned char *hmacdata, const int hmacdatasize,
- const unsigned char *buffer, const int bufsize,
- unsigned char *secret, int *secsize,
- unsigned char *payload, int *paysize);
+#define AUTHCHUNKSIZE 20
+
+struct _auth_chunk {
+ const char *err;
+ unsigned char data[AUTHCHUNKSIZE];
+};
+
+struct _auth_obj {
+ unsigned char *buffer; /* to be free()'d if not NULL */
+ const char *err; /* non-NULL if failed */
+ unsigned char *data;
+ size_t datasize;
+ unsigned char *payload;
+ size_t paylsize;
+};
+
+/* Construct new or repack old authobj, return payload */
+struct _auth_obj authobj(const char *userid, const char *password,
+ const char *oldnonce, const char *newnonce,
+ const unsigned char *secret, const size_t secsize,
+ const unsigned char *payload, const size_t paysize,
+ const unsigned char *ablob, const size_t blobsize,
+ struct _auth_chunk (*fetch_key)(const unsigned char *chal,
+ const size_t csize));
#endif