nterface/library.h

   1 /*
   2   nterface library functions
   3   Copyright (C) 2003-2004 Chris Porter.
   4 */
   5
   6 #ifndef __nterface_library_H
   7 #define __nterface_library_H
   8
   9 #include "../core/error.h"
  10
  11 #include "../lib/sha2.h"
  12
  13 #define RE_OK                  0x00
  14 #define RE_MEM_ERROR           0x01
  15 #define RE_BAD_LINE            0x02
  16 #define RE_REQUEST_REJECTED    0x03
  17 #define RE_SERVICE_NOT_FOUND   0x04
  18 #define RE_CONNECTION_CLOSED   0x05
  19 #define RE_TRANSPORT_NOT_FOUND 0x06
  20 #define RE_COMMAND_NOT_FOUND   0x07
  21 #define RE_WRONG_ARG_COUNT     0x08
  22 #define RE_TOO_MANY_ARGS       0x09
  23 #define RE_SERVICER_NOT_FOUND  0x0A
  24 #define RE_SOCKET_ERROR        0x0B
  25
  26 #define snc(err, f) strncpy(err, f, sizeof(err) - 1)
  27 #define TwentyByteHex(output, buf) snprintf(output, sizeof(output), "%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", buf[0], buf[1],  buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15], buf[16], buf[17], buf[18], buf[19]);
  28 #define SixteenByteHex(output, buf) snprintf(output, sizeof(output), "%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", buf[0], buf[1],  buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15]);
  29 #define ThirtyTwoByteHex(output, buf) snprintf(output, sizeof(output), "%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x", buf[0], buf[1],  buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11], buf[12], buf[13], buf[14], buf[15], buf[16], buf[17], buf[18], buf[19], buf[20], buf[21], buf[22], buf[23], buf[24], buf[25], buf[26], buf[27], buf[28], buf[29], buf[30], buf[31]);
  30
  31 #define MemError() Error("nterface", ERR_FATAL, "Memory allocation error, file: %s line: %d", __FILE__, __LINE__);
  32
  33 #define RANDOM_LOCATION "/dev/urandom"
  34
  35 #define MemCheck(x) \
  36   if(!x) { \
  37     MemError(); \
  38     return; \
  39   }
  40
  41 #define MemCheckR(x, y) \
  42   if(!x) { \
  43     MemError(); \
  44     return y; \
  45   }
  46
  47 int getcopyconfigitemint(char *section, char *key, int def, int *value);
  48 int getcopyconfigitemintpositive(char *section, char *key, int def);
  49 int protected_atoi(char *buf, int *value);
  50 int positive_atoi(char *data);
  51 char *challenge_response(char *challenge, char *password);
  52 char *request_error(int errn);
  53 int get_entropy(unsigned char *data, int bytes);
  54 int generate_nonce(unsigned char *nonce, int nterfacer);
  55 char *int_to_hex(unsigned char *input, char *buf, int len);
  56 int hex_to_int(char *input, unsigned char *buf, int buflen);
  57
  58 typedef struct {
  59   unsigned char prevblock[16];
  60   unsigned char scratch[16];
  61   int nrounds;
  62   unsigned long *rk;
  63 } rijndaelcbc;
  64
  65 typedef struct {
  66   SHA256_CTX outer, inner;
  67 } hmacsha256;
  68
  69 void hmacsha256_final(hmacsha256 *c, unsigned char *digest);
  70 void hmacsha256_update(hmacsha256 *c, unsigned char *message, int messagelen);
  71 void hmacsha256_init(hmacsha256 *c, unsigned char *key, int keylen);
  72 unsigned char *rijndaelcbc_decrypt(rijndaelcbc *c, unsigned char *ctblock);
  73 unsigned char *rijndaelcbc_encrypt(rijndaelcbc *c, unsigned char *ptblock);
  74 void rijndaelcbc_free(rijndaelcbc *c);
  75 rijndaelcbc *rijndaelcbc_init(unsigned char *key, int keybits, unsigned char *iv, int decrypt);
  76
  77 #endif