xl2tpd/SOURCES/xl2tpd-1.3.14-md5-fips.patch

diff -Naur xl2tpd-1.3.14-orig/aaa.c xl2tpd-1.3.14/aaa.c
--- xl2tpd-1.3.14-orig/aaa.c	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/aaa.c	2019-09-24 20:51:39.478952494 -0400
@@ -21,6 +21,8 @@
 #include <errno.h>
 #include "l2tp.h"
 
+#include <openssl/md5.h>
+
 extern void bufferDump (char *, int);
 
 /* FIXME: Accounting? */
@@ -273,11 +275,11 @@
 #endif
 
     memset (chal->response, 0, MD_SIG_SIZE);
-    MD5Init (&chal->md5);
-    MD5Update (&chal->md5, &chal->ss, 1);
-    MD5Update (&chal->md5, chal->secret, strlen ((char *)chal->secret));
-    MD5Update (&chal->md5, chal->challenge, chal->chal_len);
-    MD5Final (chal->response, &chal->md5);
+    MD5_Init (&chal->md5);
+    MD5_Update (&chal->md5, &chal->ss, 1);
+    MD5_Update (&chal->md5, chal->secret, strlen ((char *)chal->secret));
+    MD5_Update (&chal->md5, chal->challenge, chal->chal_len);
+    MD5_Final (chal->response, &chal->md5);
 #ifdef DEBUG_AUTH
     l2tp_log (LOG_DEBUG, "response is %X%X%X%X to '%s' and %X%X%X%X, %d\n",
          *((int *) &chal->response[0]),
@@ -392,12 +394,12 @@
     buf->len += length;
     /* Back to the beginning of real data, including the original length AVP */
 
-    MD5Init (&t->chal_them.md5);
-    MD5Update (&t->chal_them.md5, (void *) &attr, 2);
-    MD5Update (&t->chal_them.md5, t->chal_them.secret,
+    MD5_Init (&t->chal_them.md5);
+    MD5_Update (&t->chal_them.md5, (void *) &attr, 2);
+    MD5_Update (&t->chal_them.md5, t->chal_them.secret,
                strlen ((char *)t->chal_them.secret));
-    MD5Update (&t->chal_them.md5, t->chal_them.vector, VECTOR_SIZE);
-    MD5Final (digest, &t->chal_them.md5);
+    MD5_Update (&t->chal_them.md5, t->chal_them.vector, VECTOR_SIZE);
+    MD5_Final (digest, &t->chal_them.md5);
 
     /* Though not a "MUST" in the spec, our subformat length is always a multiple of 16 */
     ptr = ((unsigned char *) new_hdr) + sizeof (struct avp_hdr);
@@ -421,11 +423,11 @@
 #endif
         if (ptr < end)
         {
-            MD5Init (&t->chal_them.md5);
-            MD5Update (&t->chal_them.md5, t->chal_them.secret,
+            MD5_Init (&t->chal_them.md5);
+            MD5_Update (&t->chal_them.md5, t->chal_them.secret,
                        strlen ((char *)t->chal_them.secret));
-            MD5Update (&t->chal_them.md5, previous_segment, MD_SIG_SIZE);
-            MD5Final (digest, &t->chal_them.md5);
+            MD5_Update (&t->chal_them.md5, previous_segment, MD_SIG_SIZE);
+            MD5_Final (digest, &t->chal_them.md5);
         }
         previous_segment = ptr;
     }
@@ -458,12 +460,12 @@
        that it will be padded to a 16 byte boundary, so we
        have to be more careful than when encrypting */
     attr = ntohs (old_hdr->attr);
-    MD5Init (&t->chal_us.md5);
-    MD5Update (&t->chal_us.md5, (void *) &attr, 2);
-    MD5Update (&t->chal_us.md5, t->chal_us.secret,
+    MD5_Init (&t->chal_us.md5);
+    MD5_Update (&t->chal_us.md5, (void *) &attr, 2);
+    MD5_Update (&t->chal_us.md5, t->chal_us.secret,
                strlen ((char *)t->chal_us.secret));
-    MD5Update (&t->chal_us.md5, t->chal_us.vector, t->chal_us.vector_len);
-    MD5Final (digest, &t->chal_us.md5);
+    MD5_Update (&t->chal_us.md5, t->chal_us.vector, t->chal_us.vector_len);
+    MD5_Final (digest, &t->chal_us.md5);
 #ifdef DEBUG_HIDDEN
     l2tp_log (LOG_DEBUG, "attribute is %d and challenge is: ", attr);
     print_challenge (&t->chal_us);
@@ -474,11 +476,11 @@
     {
         if (cnt >= MD_SIG_SIZE)
         {
-            MD5Init (&t->chal_us.md5);
-            MD5Update (&t->chal_us.md5, t->chal_us.secret,
+            MD5_Init (&t->chal_us.md5);
+            MD5_Update (&t->chal_us.md5, t->chal_us.secret,
                        strlen ((char *)t->chal_us.secret));
-            MD5Update (&t->chal_us.md5, saved_segment, MD_SIG_SIZE);
-            MD5Final (digest, &t->chal_us.md5);
+            MD5_Update (&t->chal_us.md5, saved_segment, MD_SIG_SIZE);
+            MD5_Final (digest, &t->chal_us.md5);
             cnt = 0;
         }
         /* at the beginning of each segment, we save the current segment (16 octets or less) of cipher 
diff -Naur xl2tpd-1.3.14-orig/aaa.h xl2tpd-1.3.14/aaa.h
--- xl2tpd-1.3.14-orig/aaa.h	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/aaa.h	2019-09-24 20:52:14.179531612 -0400
@@ -15,7 +15,7 @@
 
 #ifndef _AAA_H
 #define _AAA_H
-#include "md5.h"
+#include <openssl/md5.h>
 
 #define ADDR_HASH_SIZE 256
 #define MD_SIG_SIZE 16
@@ -34,7 +34,7 @@
 
 struct challenge
 {
-    struct MD5Context md5;
+    MD5_CTX md5;
     unsigned char ss;           /* State we're sending in */
     unsigned char secret[MAXSTRLEN];    /* The shared secret */
     unsigned char *challenge;       /* The original challenge */
diff -Naur xl2tpd-1.3.14-orig/Makefile xl2tpd-1.3.14/Makefile
--- xl2tpd-1.3.14-orig/Makefile	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/Makefile	2019-09-24 20:53:02.420020643 -0400
@@ -101,8 +101,8 @@
 IPFLAGS?= -DIP_ALLOCATION
 
 CFLAGS+= $(DFLAGS) -Os -Wall -Wextra -DSANITY $(OSFLAGS) $(IPFLAGS)
-HDRS=l2tp.h avp.h misc.h control.h call.h scheduler.h file.h aaa.h md5.h
-OBJS=xl2tpd.o pty.o misc.o control.o avp.o call.o network.o avpsend.o scheduler.o file.o aaa.o md5.o
+HDRS=l2tp.h avp.h misc.h control.h call.h scheduler.h file.h aaa.h
+OBJS=xl2tpd.o pty.o misc.o control.o avp.o call.o network.o avpsend.o scheduler.o file.o aaa.o
 SRCS=${OBJS:.o=.c} ${HDRS}
 CONTROL_SRCS=xl2tpd-control.c
 #LIBS= $(OSLIBS) # -lefence # efence for malloc checking
@@ -121,7 +121,7 @@
 	rm -f $(OBJS) $(EXEC) pfc.o pfc $(CONTROL_EXEC)
 
 $(EXEC): $(OBJS) $(HDRS)
-	$(CC) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS)
+	$(CC) $(LDFLAGS) -o $@ $(OBJS) -lcrypto $(LDLIBS)
 
 $(CONTROL_EXEC): $(CONTROL_SRCS)
 	$(CC) $(CFLAGS) $(LDFLAGS) $(CONTROL_SRCS) -o $@
diff -Naur xl2tpd-1.3.14-orig/md5.c xl2tpd-1.3.14/md5.c
--- xl2tpd-1.3.14-orig/md5.c	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/md5.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,274 +0,0 @@
-#ifdef FREEBSD
-# include <machine/endian.h>
-#elif defined(OPENBSD) || defined(NETBSD)
-# define __BSD_VISIBLE 0
-# include <machine/endian.h>
-#elif defined(LINUX)
-# include <endian.h>
-#elif defined(SOLARIS)
-# include <sys/isa_defs.h>
-#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define HIGHFIRST 1
-#endif
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest.  This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- */
-#include <string.h>             /* for memcpy() */
-#include "md5.h"
-
-#ifndef HIGHFIRST
-#define byteReverse(buf, len)   /* Nothing */
-#else
-void byteReverse (unsigned char *buf, unsigned longs);
-
-#ifndef ASM_MD5
-/*
- * Note: this code is harmless on little-endian machines.
- */
-void byteReverse (unsigned char *buf, unsigned longs)
-{
-    uint32 t;
-    do
-    {
-        t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
-            ((unsigned) buf[1] << 8 | buf[0]);
-        *(uint32 *) buf = t;
-        buf += 4;
-    }
-    while (--longs);
-}
-#endif
-#endif
-
-/*
- * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
- * initialization constants.
- */
-void MD5Init (struct MD5Context *ctx)
-{
-    ctx->buf[0] = 0x67452301;
-    ctx->buf[1] = 0xefcdab89;
-    ctx->buf[2] = 0x98badcfe;
-    ctx->buf[3] = 0x10325476;
-
-    ctx->bits[0] = 0;
-    ctx->bits[1] = 0;
-}
-
-/*
- * Update context to reflect the concatenation of another buffer full
- * of bytes.
- */
-void MD5Update (struct MD5Context *ctx, unsigned char const *buf,
-                unsigned len)
-{
-    uint32 t;
-
-    /* Update bitcount */
-
-    t = ctx->bits[0];
-    if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)
-        ctx->bits[1]++;         /* Carry from low to high */
-    ctx->bits[1] += len >> 29;
-
-    t = (t >> 3) & 0x3f;        /* Bytes already in shsInfo->data */
-
-    /* Handle any leading odd-sized chunks */
-
-    if (t)
-    {
-        unsigned char *p = (unsigned char *) ctx->in + t;
-
-        t = 64 - t;
-        if (len < t)
-        {
-            memcpy (p, buf, len);
-            return;
-        }
-        memcpy (p, buf, t);
-        byteReverse (ctx->in, 16);
-        MD5Transform (ctx->buf, (uint32 *) ctx->in);
-        buf += t;
-        len -= t;
-    }
-    /* Process data in 64-byte chunks */
-
-    while (len >= 64)
-    {
-        memcpy (ctx->in, buf, 64);
-        byteReverse (ctx->in, 16);
-        MD5Transform (ctx->buf, (uint32 *) ctx->in);
-        buf += 64;
-        len -= 64;
-    }
-
-    /* Handle any remaining bytes of data. */
-
-    memcpy (ctx->in, buf, len);
-}
-
-/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern 
- * 1 0* (64-bit count of bits processed, MSB-first)
- */
-void MD5Final (unsigned char digest[16], struct MD5Context *ctx)
-{
-    unsigned count;
-    unsigned char *p;
-
-    /* Compute number of bytes mod 64 */
-    count = (ctx->bits[0] >> 3) & 0x3F;
-
-    /* Set the first char of padding to 0x80.  This is safe since there is
-       always at least one byte free */
-    p = ctx->in + count;
-    *p++ = 0x80;
-
-    /* Bytes of padding needed to make 64 bytes */
-    count = 64 - 1 - count;
-
-    /* Pad out to 56 mod 64 */
-    if (count < 8)
-    {
-        /* Two lots of padding:  Pad the first block to 64 bytes */
-        memset (p, 0, count);
-        byteReverse (ctx->in, 16);
-        MD5Transform (ctx->buf, (uint32 *) ctx->in);
-
-        /* Now fill the next block with 56 bytes */
-        memset (ctx->in, 0, 56);
-    }
-    else
-    {
-        /* Pad block to 56 bytes */
-        memset (p, 0, count - 8);
-    }
-    byteReverse (ctx->in, 14);
-
-    /* Append length in bits and transform */
-    memcpy(ctx->in + 14 * sizeof(uint32), ctx->bits, sizeof(ctx->bits));
-
-    MD5Transform (ctx->buf, (uint32 *) ctx->in);
-    byteReverse ((unsigned char *) ctx->buf, 4);
-    memcpy (digest, ctx->buf, 16);
-    memset (ctx, 0, sizeof (*ctx));      /* In case it's sensitive */
-}
-
-#ifndef ASM_MD5
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/* This is the central step in the MD5 algorithm. */
-#define MD5STEP(f, w, x, y, z, data, s) \
-	( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data.  MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-void MD5Transform (uint32 buf[4], uint32 const in[16])
-{
-    register uint32 a, b, c, d;
-
-    a = buf[0];
-    b = buf[1];
-    c = buf[2];
-    d = buf[3];
-
-    MD5STEP (F1, a, b, c, d, in[0] + 0xd76aa478, 7);
-    MD5STEP (F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
-    MD5STEP (F1, c, d, a, b, in[2] + 0x242070db, 17);
-    MD5STEP (F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
-    MD5STEP (F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
-    MD5STEP (F1, d, a, b, c, in[5] + 0x4787c62a, 12);
-    MD5STEP (F1, c, d, a, b, in[6] + 0xa8304613, 17);
-    MD5STEP (F1, b, c, d, a, in[7] + 0xfd469501, 22);
-    MD5STEP (F1, a, b, c, d, in[8] + 0x698098d8, 7);
-    MD5STEP (F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
-    MD5STEP (F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
-    MD5STEP (F1, b, c, d, a, in[11] + 0x895cd7be, 22);
-    MD5STEP (F1, a, b, c, d, in[12] + 0x6b901122, 7);
-    MD5STEP (F1, d, a, b, c, in[13] + 0xfd987193, 12);
-    MD5STEP (F1, c, d, a, b, in[14] + 0xa679438e, 17);
-    MD5STEP (F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
-    MD5STEP (F2, a, b, c, d, in[1] + 0xf61e2562, 5);
-    MD5STEP (F2, d, a, b, c, in[6] + 0xc040b340, 9);
-    MD5STEP (F2, c, d, a, b, in[11] + 0x265e5a51, 14);
-    MD5STEP (F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
-    MD5STEP (F2, a, b, c, d, in[5] + 0xd62f105d, 5);
-    MD5STEP (F2, d, a, b, c, in[10] + 0x02441453, 9);
-    MD5STEP (F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
-    MD5STEP (F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
-    MD5STEP (F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
-    MD5STEP (F2, d, a, b, c, in[14] + 0xc33707d6, 9);
-    MD5STEP (F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
-    MD5STEP (F2, b, c, d, a, in[8] + 0x455a14ed, 20);
-    MD5STEP (F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
-    MD5STEP (F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
-    MD5STEP (F2, c, d, a, b, in[7] + 0x676f02d9, 14);
-    MD5STEP (F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
-    MD5STEP (F3, a, b, c, d, in[5] + 0xfffa3942, 4);
-    MD5STEP (F3, d, a, b, c, in[8] + 0x8771f681, 11);
-    MD5STEP (F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
-    MD5STEP (F3, b, c, d, a, in[14] + 0xfde5380c, 23);
-    MD5STEP (F3, a, b, c, d, in[1] + 0xa4beea44, 4);
-    MD5STEP (F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
-    MD5STEP (F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
-    MD5STEP (F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
-    MD5STEP (F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
-    MD5STEP (F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
-    MD5STEP (F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
-    MD5STEP (F3, b, c, d, a, in[6] + 0x04881d05, 23);
-    MD5STEP (F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
-    MD5STEP (F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
-    MD5STEP (F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
-    MD5STEP (F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
-    MD5STEP (F4, a, b, c, d, in[0] + 0xf4292244, 6);
-    MD5STEP (F4, d, a, b, c, in[7] + 0x432aff97, 10);
-    MD5STEP (F4, c, d, a, b, in[14] + 0xab9423a7, 15);
-    MD5STEP (F4, b, c, d, a, in[5] + 0xfc93a039, 21);
-    MD5STEP (F4, a, b, c, d, in[12] + 0x655b59c3, 6);
-    MD5STEP (F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
-    MD5STEP (F4, c, d, a, b, in[10] + 0xffeff47d, 15);
-    MD5STEP (F4, b, c, d, a, in[1] + 0x85845dd1, 21);
-    MD5STEP (F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
-    MD5STEP (F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
-    MD5STEP (F4, c, d, a, b, in[6] + 0xa3014314, 15);
-    MD5STEP (F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
-    MD5STEP (F4, a, b, c, d, in[4] + 0xf7537e82, 6);
-    MD5STEP (F4, d, a, b, c, in[11] + 0xbd3af235, 10);
-    MD5STEP (F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
-    MD5STEP (F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
-    buf[0] += a;
-    buf[1] += b;
-    buf[2] += c;
-    buf[3] += d;
-}
-
-#endif
diff -Naur xl2tpd-1.3.14-orig/md5.h xl2tpd-1.3.14/md5.h
--- xl2tpd-1.3.14-orig/md5.h	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/md5.h	1969-12-31 19:00:00.000000000 -0500
@@ -1,29 +0,0 @@
-#ifndef MD5_H
-#define MD5_H
-
-#ifdef __alpha
-typedef unsigned int uint32;
-#else
-#include <stdint.h>
-typedef uint32_t uint32;
-#endif
-
-struct MD5Context
-{
-    uint32 buf[4];
-    uint32 bits[2];
-    unsigned char in[64];
-};
-
-void MD5Init (struct MD5Context *context);
-void MD5Update (struct MD5Context *context, unsigned char const *buf,
-                unsigned len);
-void MD5Final (unsigned char digest[16], struct MD5Context *context);
-void MD5Transform (uint32 buf[4], uint32 const in[16]);
-
-/*
- * This is needed to make RSAREF happy on some MS-DOS compilers.
- */
-typedef struct MD5Context MD5_CTX;
-
-#endif /* !MD5_H */
diff -Naur xl2tpd-1.3.14-orig/xl2tpd.c xl2tpd-1.3.14/xl2tpd.c
--- xl2tpd-1.3.14-orig/xl2tpd.c	2019-04-17 12:23:39.000000000 -0400
+++ xl2tpd-1.3.14/xl2tpd.c	2019-09-24 20:53:50.969512827 -0400
@@ -1643,7 +1643,11 @@
 
 
 static void usage(void) {
-    printf("\nxl2tpd version:  %s\n", SERVER_VERSION);
+    printf("\nxl2tpd version:  %s\n"
+"This product includes software developed by the OpenSSL Project for use\n"
+"in the OpenSSL Toolkit. (http://www.openssl.org/)\n"
+, SERVER_VERSION);
+
     printf("Usage: xl2tpd [-c <config file>] [-s <secret file>] [-p <pid file>]\n"
             "              [-C <control file>] [-D] [-l] [-q <tos decimal value for control>]\n"
             "              [-v, --version]\n");