pppd.8: Document netmask option

[ppp.git] / pppd / pppcrypt.c

diff --git a/pppd/pppcrypt.c b/pppd/pppcrypt.c
deleted file mode 100644 (file)
index 1c4ce3b..0000000
--- a/pppd/pppcrypt.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1
- *
- * Extracted from chap_ms.c by James Carlson.
- *
- * Copyright (c) 1995 Eric Rosenquist, Strata Software Limited.
- * http://www.strataware.com/
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Eric Rosenquist.  The name of the author may not be used to
- * endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include <errno.h>
-#include "pppd.h"
-#include "pppcrypt.h"
-
-static u_char
-Get7Bits(input, startBit)
-u_char *input;
-int startBit;
-{
-       unsigned int word;
-
-       word  = (unsigned)input[startBit / 8] << 8;
-       word |= (unsigned)input[startBit / 8 + 1];
-
-       word >>= 15 - (startBit % 8 + 7);
-
-       return word & 0xFE;
-}
-
-static void
-MakeKey(key, des_key)
-u_char *key;           /* IN  56 bit DES key missing parity bits */
-u_char *des_key;       /* OUT 64 bit DES key with parity bits added */
-{
-       des_key[0] = Get7Bits(key,  0);
-       des_key[1] = Get7Bits(key,  7);
-       des_key[2] = Get7Bits(key, 14);
-       des_key[3] = Get7Bits(key, 21);
-       des_key[4] = Get7Bits(key, 28);
-       des_key[5] = Get7Bits(key, 35);
-       des_key[6] = Get7Bits(key, 42);
-       des_key[7] = Get7Bits(key, 49);
-
-#ifndef USE_CRYPT
-       des_set_odd_parity((des_cblock *)des_key);
-#endif
-}
-
-#ifdef USE_CRYPT
-/*
- * in == 8-byte string (expanded version of the 56-bit key)
- * out == 64-byte string where each byte is either 1 or 0
- * Note that the low-order "bit" is always ignored by by setkey()
- */
-static void
-Expand(in, out)
-u_char *in;
-u_char *out;
-{
-        int j, c;
-        int i;
-
-        for (i = 0; i < 64; in++){
-               c = *in;
-                for (j = 7; j >= 0; j--)
-                        *out++ = (c >> j) & 01;
-                i += 8;
-        }
-}
-
-/* The inverse of Expand
- */
-static void
-Collapse(in, out)
-u_char *in;
-u_char *out;
-{
-        int j;
-        int i;
-       unsigned int c;
-
-       for (i = 0; i < 64; i += 8, out++) {
-           c = 0;
-           for (j = 7; j >= 0; j--, in++)
-               c |= *in << j;
-           *out = c & 0xff;
-       }
-}
-
-bool
-DesSetkey(key)
-u_char *key;
-{
-       u_char des_key[8];
-       u_char crypt_key[66];
-
-       MakeKey(key, des_key);
-       Expand(des_key, crypt_key);
-       errno = 0;
-       setkey((const char *)crypt_key);
-       if (errno != 0)
-               return (0);
-       return (1);
-}
-
-bool
-DesEncrypt(clear, cipher)
-u_char *clear; /* IN  8 octets */
-u_char *cipher;        /* OUT 8 octets */
-{
-       u_char des_input[66];
-
-       Expand(clear, des_input);
-       errno = 0;
-       encrypt((char *)des_input, 0);
-       if (errno != 0)
-               return (0);
-       Collapse(des_input, cipher);
-       return (1);
-}
-
-bool
-DesDecrypt(cipher, clear)
-u_char *cipher;        /* IN  8 octets */
-u_char *clear; /* OUT 8 octets */
-{
-       u_char des_input[66];
-
-       Expand(cipher, des_input);
-       errno = 0;
-       encrypt((char *)des_input, 1);
-       if (errno != 0)
-               return (0);
-       Collapse(des_input, clear);
-       return (1);
-}
-
-#else /* USE_CRYPT */
-static des_key_schedule        key_schedule;
-
-bool
-DesSetkey(key)
-u_char *key;
-{
-       des_cblock des_key;
-       MakeKey(key, des_key);
-       des_set_key(&des_key, key_schedule);
-       return (1);
-}
-
-bool
-DesEncrypt(clear, key, cipher)
-u_char *clear; /* IN  8 octets */
-u_char *cipher;        /* OUT 8 octets */
-{
-       des_ecb_encrypt((des_cblock *)clear, (des_cblock *)cipher,
-           key_schedule, 1);
-       return (1);
-}
-
-bool
-DesDecrypt(cipher, clear)
-u_char *cipher;        /* IN  8 octets */
-u_char *clear; /* OUT 8 octets */
-{
-       des_ecb_encrypt((des_cblock *)cipher, (des_cblock *)clear,
-           key_schedule, 0);
-       return (1);
-}
-
-#endif /* USE_CRYPT */