src/vsl_util.h

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/*
 * Copyright 2006, Internet2
 * Legal conditions are in file LICENSE
 * (MD5 = c434f2e53b8089d8b4d0172c7ce07360).
 */

/**
 * @file   vsl_util.h
 * @author Nikolaus Rath
 * @brief  Utility functions for the security layer (header)
 *
 **/

#ifndef VSL_UTIL_H
#define VSL_UTIL_H

#include "vsl_api.h"
#include <stdarg.h>
#include <stdbool.h>

//! Random device
#define RANDDEV  "/dev/urandom"


/* Prototypes */
int gen_key        (unsigned char* key);
void init_keys_c   (vsl_sock* sock, const unsigned char* key);
void init_keys_s   (vsl_sock* sock, const unsigned char* key);
void sha256        (const unsigned char* s1, int l1,
                    const unsigned char* s2, int l2, unsigned char *hash);
void md5           (const unsigned char* s1, int l1,
                    const unsigned char* s2, int l2, unsigned char *hash);
bool is_blocking   (vsl_sock* socket);
void set_blocking  (vsl_sock* socket, bool mode);
unsigned char* write_objs   (size_t* total, ...);
unsigned char* read_objs    (unsigned char* src, size_t max, ...);
inline uint64_t ntohll    (uint64_t val);
inline uint64_t htonll    (uint64_t val);
void aes_ctr (unsigned char* ctr,
              const unsigned char* key,
              unsigned char* buf,
              const size_t len);

inline void ctr_inc (unsigned char* ctr);
inline void xor16 (unsigned char* b1, unsigned char* b2);

typedef ssize_t (*transmit_fn)(vfer_fd, void*, size_t);
int transfer ( vsl_sock *sock, transmit_fn fn,
               unsigned char* buf, size_t min, size_t len);





#endif

/*
 * Local Variables:
 * compile-command: "cd ..; make tests file_xfer"
 * compilation-search-path: ("..")
 * End:
 */

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