Move bitmap and next_bitmap from s->d1 to s->rlayer.d.

Create dtls_bitmap.h and dtls_bitmap.c

Reviewed-by: Richard Levitte <levitte@openssl.org>

6 files changed, 351 insertions, 121 deletions

diff --git a/ssl/Makefile b/ssl/Makefile
index a2fb87dbfd..ae644bc6c4 100644
--- a/ssl/Makefile
+++ b/ssl/Makefile
@@ -31,7 +31,7 @@ LIBSRC=	\
 	ssl_ciph.c ssl_stat.c ssl_rsa.c \
 	ssl_asn1.c ssl_txt.c ssl_algs.c ssl_conf.c \
 	bio_ssl.c ssl_err.c kssl.c t1_reneg.c tls_srp.c t1_trce.c ssl_utst.c \
-	record/ssl3_buffer.c record/ssl3_record.c
+	record/ssl3_buffer.c record/ssl3_record.c record/dtls1_bitmap.c
 LIBOBJ= \
 	s3_meth.o  s3_srvr.o  s3_clnt.o  s3_lib.o  s3_enc.o record/s3_pkt.o s3_both.o s3_cbc.o \
 	s3_msg.o \
@@ -43,7 +43,7 @@ LIBOBJ= \
 	ssl_ciph.o ssl_stat.o ssl_rsa.o \
 	ssl_asn1.o ssl_txt.o ssl_algs.o ssl_conf.o \
 	bio_ssl.o ssl_err.o kssl.o t1_reneg.o tls_srp.o t1_trce.o ssl_utst.o \
-	record/ssl3_buffer.o record/ssl3_record.o
+	record/ssl3_buffer.o record/ssl3_record.o record/dtls1_bitmap.o
 
 SRC= $(LIBSRC)
 
diff --git a/ssl/record/d1_pkt.c b/ssl/record/d1_pkt.c
index 2550b1dc7d..a9947ffbf5 100644
--- a/ssl/record/d1_pkt.c
+++ b/ssl/record/d1_pkt.c
@@ -151,65 +151,6 @@ void DTLS_RECORD_LAYER_clear(RECORD_LAYER *rl)
     memset(d, 0, sizeof *d);
 }
 
-/* mod 128 saturating subtract of two 64-bit values in big-endian order */
-static int satsub64be(const unsigned char *v1, const unsigned char *v2)
-{
-    int ret, sat, brw, i;
-
-    if (sizeof(long) == 8)
-        do {
-            const union {
-                long one;
-                char little;
-            } is_endian = {
-                1
-            };
-            long l;
-
-            if (is_endian.little)
-                break;
-            /* not reached on little-endians */
-            /*
-             * following test is redundant, because input is always aligned,
-             * but I take no chances...
-             */
-            if (((size_t)v1 | (size_t)v2) & 0x7)
-                break;
-
-            l = *((long *)v1);
-            l -= *((long *)v2);
-            if (l > 128)
-                return 128;
-            else if (l < -128)
-                return -128;
-            else
-                return (int)l;
-        } while (0);
-
-    ret = (int)v1[7] - (int)v2[7];
-    sat = 0;
-    brw = ret >> 8;             /* brw is either 0 or -1 */
-    if (ret & 0x80) {
-        for (i = 6; i >= 0; i--) {
-            brw += (int)v1[i] - (int)v2[i];
-            sat |= ~brw;
-            brw >>= 8;
-        }
-    } else {
-        for (i = 6; i >= 0; i--) {
-            brw += (int)v1[i] - (int)v2[i];
-            sat |= brw;
-            brw >>= 8;
-        }
-    }
-    brw <<= 8;                  /* brw is either 0 or -256 */
-
-    if (sat & 0xff)
-        return brw | 0x80;
-    else
-        return brw + (ret & 0xFF);
-}
-
 static int have_handshake_fragment(SSL *s, int type, unsigned char *buf,
                                    int len, int peek);
 
@@ -1252,48 +1193,6 @@ int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
     return -1;
 }
 
-int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap)
-{
-    int cmp;
-    unsigned int shift;
-    const unsigned char *seq = s->rlayer.read_sequence;
-
-    cmp = satsub64be(seq, bitmap->max_seq_num);
-    if (cmp > 0) {
-        SSL3_RECORD_set_seq_num(&s->rlayer.rrec, seq);
-        return 1;               /* this record in new */
-    }
-    shift = -cmp;
-    if (shift >= sizeof(bitmap->map) * 8)
-        return 0;               /* stale, outside the window */
-    else if (bitmap->map & (1UL << shift))
-        return 0;               /* record previously received */
-
-    SSL3_RECORD_set_seq_num(&s->rlayer.rrec, seq);
-    return 1;
-}
-
-void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap)
-{
-    int cmp;
-    unsigned int shift;
-    const unsigned char *seq = s->rlayer.read_sequence;
-
-    cmp = satsub64be(seq, bitmap->max_seq_num);
-    if (cmp > 0) {
-        shift = cmp;
-        if (shift < sizeof(bitmap->map) * 8)
-            bitmap->map <<= shift, bitmap->map |= 1UL;
-        else
-            bitmap->map = 1UL;
-        memcpy(bitmap->max_seq_num, seq, 8);
-    } else {
-        shift = -cmp;
-        if (shift < sizeof(bitmap->map) * 8)
-            bitmap->map |= 1UL << shift;
-    }
-}
-
 DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
                                       unsigned int *is_next_epoch)
 {
@@ -1302,13 +1201,13 @@ DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
 
     /* In current epoch, accept HM, CCS, DATA, & ALERT */
     if (rr->epoch == s->rlayer.d->r_epoch)
-        return &s->d1->bitmap;
+        return &s->rlayer.d->bitmap;
 
     /* Only HM and ALERT messages can be from the next epoch */
     else if (rr->epoch == (unsigned long)(s->rlayer.d->r_epoch + 1) &&
             (rr->type == SSL3_RT_HANDSHAKE || rr->type == SSL3_RT_ALERT)) {
         *is_next_epoch = 1;
-        return &s->d1->next_bitmap;
+        return &s->rlayer.d->next_bitmap;
     }
 
     return NULL;
@@ -1322,8 +1221,8 @@ void dtls1_reset_seq_numbers(SSL *s, int rw)
     if (rw & SSL3_CC_READ) {
         seq = s->rlayer.read_sequence;
         s->rlayer.d->r_epoch++;
-        memcpy(&(s->d1->bitmap), &(s->d1->next_bitmap), sizeof(DTLS1_BITMAP));
-        memset(&(s->d1->next_bitmap), 0x00, sizeof(DTLS1_BITMAP));
+        memcpy(&(s->rlayer.d->bitmap), &(s->rlayer.d->next_bitmap), sizeof(DTLS1_BITMAP));
+        memset(&(s->rlayer.d->next_bitmap), 0x00, sizeof(DTLS1_BITMAP));
     } else {
         seq = s->rlayer.write_sequence;
         memcpy(s->d1->last_write_sequence, seq,
diff --git a/ssl/record/dtls1_bitmap.c b/ssl/record/dtls1_bitmap.c
new file mode 100644
index 0000000000..174ba4990c
--- /dev/null
+++ b/ssl/record/dtls1_bitmap.c
@@ -0,0 +1,217 @@
+/* ssl/record/dtls1_bitmap.c */
+/*
+ * DTLS implementation written by Nagendra Modadugu
+ * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include "../ssl_locl.h"
+
+/* mod 128 saturating subtract of two 64-bit values in big-endian order */
+static int satsub64be(const unsigned char *v1, const unsigned char *v2)
+{
+    int ret, sat, brw, i;
+
+    if (sizeof(long) == 8)
+        do {
+            const union {
+                long one;
+                char little;
+            } is_endian = {
+                1
+            };
+            long l;
+
+            if (is_endian.little)
+                break;
+            /* not reached on little-endians */
+            /*
+             * following test is redundant, because input is always aligned,
+             * but I take no chances...
+             */
+            if (((size_t)v1 | (size_t)v2) & 0x7)
+                break;
+
+            l = *((long *)v1);
+            l -= *((long *)v2);
+            if (l > 128)
+                return 128;
+            else if (l < -128)
+                return -128;
+            else
+                return (int)l;
+        } while (0);
+
+    ret = (int)v1[7] - (int)v2[7];
+    sat = 0;
+    brw = ret >> 8;             /* brw is either 0 or -1 */
+    if (ret & 0x80) {
+        for (i = 6; i >= 0; i--) {
+            brw += (int)v1[i] - (int)v2[i];
+            sat |= ~brw;
+            brw >>= 8;
+        }
+    } else {
+        for (i = 6; i >= 0; i--) {
+            brw += (int)v1[i] - (int)v2[i];
+            sat |= brw;
+            brw >>= 8;
+        }
+    }
+    brw <<= 8;                  /* brw is either 0 or -256 */
+
+    if (sat & 0xff)
+        return brw | 0x80;
+    else
+        return brw + (ret & 0xFF);
+}
+
+int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap)
+{
+    int cmp;
+    unsigned int shift;
+    const unsigned char *seq = s->rlayer.read_sequence;
+
+    cmp = satsub64be(seq, bitmap->max_seq_num);
+    if (cmp > 0) {
+        SSL3_RECORD_set_seq_num(RECORD_LAYER_get_rrec(&s->rlayer), seq);
+        return 1;               /* this record in new */
+    }
+    shift = -cmp;
+    if (shift >= sizeof(bitmap->map) * 8)
+        return 0;               /* stale, outside the window */
+    else if (bitmap->map & (1UL << shift))
+        return 0;               /* record previously received */
+
+    SSL3_RECORD_set_seq_num(RECORD_LAYER_get_rrec(&s->rlayer), seq);
+    return 1;
+}
+
+void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap)
+{
+    int cmp;
+    unsigned int shift;
+    const unsigned char *seq = RECORD_LAYER_get_read_sequence(&s->rlayer);
+
+    cmp = satsub64be(seq, bitmap->max_seq_num);
+    if (cmp > 0) {
+        shift = cmp;
+        if (shift < sizeof(bitmap->map) * 8)
+            bitmap->map <<= shift, bitmap->map |= 1UL;
+        else
+            bitmap->map = 1UL;
+        memcpy(bitmap->max_seq_num, seq, 8);
+    } else {
+        shift = -cmp;
+        if (shift < sizeof(bitmap->map) * 8)
+            bitmap->map |= 1UL << shift;
+    }
+}
diff --git a/ssl/record/dtls1_bitmap.h b/ssl/record/dtls1_bitmap.h
new file mode 100644
index 0000000000..f90970928a
--- /dev/null
+++ b/ssl/record/dtls1_bitmap.h
@@ -0,0 +1,122 @@
+/* ssl/record/dtls1_bitmap.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+
+typedef struct dtls1_bitmap_st {
+    unsigned long map;          /* track 32 packets on 32-bit systems and 64
+                                 * - on 64-bit systems */
+                                 
+    unsigned char max_seq_num[8]; /* max record number seen so far, 64-bit
+                                   * value in big-endian encoding */
+} DTLS1_BITMAP;
+
+int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
+void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
diff --git a/ssl/record/rec_layer.h b/ssl/record/rec_layer.h
index 00abf24f8f..4830318c65 100644
--- a/ssl/record/rec_layer.h
+++ b/ssl/record/rec_layer.h
@@ -119,14 +119,6 @@
  *                                                                           *
  *****************************************************************************/
 
-typedef struct dtls1_bitmap_st {
-    unsigned long map;          /* track 32 packets on 32-bit systems and 64
-                                 * - on 64-bit systems */
-    unsigned char max_seq_num[8]; /* max record number seen so far, 64-bit
-                                   * value in big-endian encoding */
-} DTLS1_BITMAP;
-
-
 typedef struct record_pqueue_st {
     unsigned short epoch;
     pqueue q;
@@ -150,6 +142,11 @@ typedef struct dtls_record_layer_st {
      */
     unsigned short r_epoch;
     unsigned short w_epoch;
+
+    /* records being received in the current epoch */
+    DTLS1_BITMAP bitmap;
+    /* renegotiation starts a new set of sequence numbers */
+    DTLS1_BITMAP next_bitmap;
 } DTLS_RECORD_LAYER;
 
 typedef struct record_layer_st {
@@ -267,8 +264,6 @@ void dtls1_reset_seq_numbers(SSL *s, int rw);
 __owur int ssl3_read_n(SSL *s, int n, int max, int extend);
 __owur int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
                        unsigned int len);
-int dtls1_record_replay_check(SSL *s, DTLS1_BITMAP *bitmap);
-void dtls1_record_bitmap_update(SSL *s, DTLS1_BITMAP *bitmap);
 DTLS1_BITMAP *dtls1_get_bitmap(SSL *s, SSL3_RECORD *rr,
                                       unsigned int *is_next_epoch);
 int dtls1_process_buffered_records(SSL *s);
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index 2368a09fe4..0b267faf96 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -165,6 +165,7 @@
 # include <openssl/ssl.h>
 # include <openssl/symhacks.h>
 
+#include "record/dtls1_bitmap.h"
 #include "record/ssl3_buffer.h"
 #include "record/ssl3_record.h"
 #include "record/rec_layer.h"
@@ -1404,10 +1405,6 @@ typedef struct dtls1_state_st {
     unsigned char rcvd_cookie[DTLS1_COOKIE_LENGTH];
     unsigned int cookie_len;
 
-    /* records being received in the current epoch */
-    DTLS1_BITMAP bitmap;
-    /* renegotiation starts a new set of sequence numbers */
-    DTLS1_BITMAP next_bitmap;
     /* handshake message numbers */
     unsigned short handshake_write_seq;
     unsigned short next_handshake_write_seq;