Move SSL3_BUFFER set up and release code into ssl3_buffer.c

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

4 files changed, 121 insertions, 122 deletions

diff --git a/ssl/record/ssl3_buffer.c b/ssl/record/ssl3_buffer.c
index e5abbd652b..65dcd8a292 100644
--- a/ssl/record/ssl3_buffer.c
+++ b/ssl/record/ssl3_buffer.c
@@ -125,3 +125,119 @@ void SSL3_BUFFER_release(SSL3_BUFFER *b)
         OPENSSL_free(b->buf);
     b->buf = NULL;
 }
+
+int ssl3_setup_read_buffer(SSL *s)
+{
+    unsigned char *p;
+    size_t len, align = 0, headerlen;
+    SSL3_BUFFER *b;
+    
+    b = RECORD_LAYER_get_rbuf(&s->rlayer);
+
+    if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+        headerlen = DTLS1_RT_HEADER_LENGTH;
+    else
+        headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+    align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
+#endif
+
+    if (b->buf == NULL) {
+        len = SSL3_RT_MAX_PLAIN_LENGTH
+            + SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
+        if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) {
+            s->s3->init_extra = 1;
+            len += SSL3_RT_MAX_EXTRA;
+        }
+#ifndef OPENSSL_NO_COMP
+        if (ssl_allow_compression(s))
+            len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+        if ((p = OPENSSL_malloc(len)) == NULL)
+            goto err;
+        b->buf = p;
+        b->len = len;
+    }
+
+    s->packet = &(b->buf[0]);
+    return 1;
+
+ err:
+    SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER, ERR_R_MALLOC_FAILURE);
+    return 0;
+}
+
+int ssl3_setup_write_buffer(SSL *s)
+{
+    unsigned char *p;
+    size_t len, align = 0, headerlen;
+    SSL3_BUFFER *wb;
+
+    wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+
+    if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+        headerlen = DTLS1_RT_HEADER_LENGTH + 1;
+    else
+        headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+    align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
+#endif
+
+    if (wb->buf == NULL) {
+        len = s->max_send_fragment
+            + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
+#ifndef OPENSSL_NO_COMP
+        if (ssl_allow_compression(s))
+            len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+        if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+            len += headerlen + align + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
+
+        if ((p = OPENSSL_malloc(len)) == NULL)
+            goto err;
+        wb->buf = p;
+        wb->len = len;
+    }
+
+    return 1;
+
+ err:
+    SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER, ERR_R_MALLOC_FAILURE);
+    return 0;
+}
+
+int ssl3_setup_buffers(SSL *s)
+{
+    if (!ssl3_setup_read_buffer(s))
+        return 0;
+    if (!ssl3_setup_write_buffer(s))
+        return 0;
+    return 1;
+}
+
+int ssl3_release_write_buffer(SSL *s)
+{
+    SSL3_BUFFER *wb;
+
+    wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+
+    if (wb->buf != NULL) {
+        OPENSSL_free(wb->buf);
+        wb->buf = NULL;
+    }
+    return 1;
+}
+
+int ssl3_release_read_buffer(SSL *s)
+{
+    SSL3_BUFFER *b;
+
+    b = RECORD_LAYER_get_rbuf(&s->rlayer);
+    if (b->buf != NULL) {
+        OPENSSL_free(b->buf);
+        b->buf = NULL;
+    }
+    return 1;
+}
diff --git a/ssl/record/ssl3_buffer.h b/ssl/record/ssl3_buffer.h
index 0eb5d0020d..4668f4507a 100644
--- a/ssl/record/ssl3_buffer.h
+++ b/ssl/record/ssl3_buffer.h
@@ -129,4 +129,8 @@ typedef struct ssl3_buffer_st {
 
 void SSL3_BUFFER_set_data(SSL3_BUFFER *b, unsigned char *d, int n);
 void SSL3_BUFFER_release(SSL3_BUFFER *b);
-
+__owur int ssl3_setup_buffers(SSL *s);
+__owur int ssl3_setup_read_buffer(SSL *s);
+__owur int ssl3_setup_write_buffer(SSL *s);
+int ssl3_release_read_buffer(SSL *s);
+int ssl3_release_write_buffer(SSL *s);
diff --git a/ssl/s3_both.c b/ssl/s3_both.c
index d67be913c2..c8f5727019 100644
--- a/ssl/s3_both.c
+++ b/ssl/s3_both.c
@@ -573,122 +573,6 @@ int ssl_verify_alarm_type(long type)
     return (al);
 }
 
-int ssl3_setup_read_buffer(SSL *s)
-{
-    unsigned char *p;
-    size_t len, align = 0, headerlen;
-    SSL3_BUFFER *b;
-    
-    b = RECORD_LAYER_get_rbuf(&s->rlayer);
-
-    if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
-        headerlen = DTLS1_RT_HEADER_LENGTH;
-    else
-        headerlen = SSL3_RT_HEADER_LENGTH;
-
-#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
-    align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
-#endif
-
-    if (b->buf == NULL) {
-        len = SSL3_RT_MAX_PLAIN_LENGTH
-            + SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
-        if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) {
-            s->s3->init_extra = 1;
-            len += SSL3_RT_MAX_EXTRA;
-        }
-#ifndef OPENSSL_NO_COMP
-        if (ssl_allow_compression(s))
-            len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
-#endif
-        if ((p = OPENSSL_malloc(len)) == NULL)
-            goto err;
-        b->buf = p;
-        b->len = len;
-    }
-
-    s->packet = &(b->buf[0]);
-    return 1;
-
- err:
-    SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER, ERR_R_MALLOC_FAILURE);
-    return 0;
-}
-
-int ssl3_setup_write_buffer(SSL *s)
-{
-    unsigned char *p;
-    size_t len, align = 0, headerlen;
-    SSL3_BUFFER *wb;
-
-    wb = RECORD_LAYER_get_wbuf(&s->rlayer);
-
-    if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
-        headerlen = DTLS1_RT_HEADER_LENGTH + 1;
-    else
-        headerlen = SSL3_RT_HEADER_LENGTH;
-
-#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
-    align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
-#endif
-
-    if (wb->buf == NULL) {
-        len = s->max_send_fragment
-            + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
-#ifndef OPENSSL_NO_COMP
-        if (ssl_allow_compression(s))
-            len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
-#endif
-        if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
-            len += headerlen + align + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
-
-        if ((p = OPENSSL_malloc(len)) == NULL)
-            goto err;
-        wb->buf = p;
-        wb->len = len;
-    }
-
-    return 1;
-
- err:
-    SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER, ERR_R_MALLOC_FAILURE);
-    return 0;
-}
-
-int ssl3_setup_buffers(SSL *s)
-{
-    if (!ssl3_setup_read_buffer(s))
-        return 0;
-    if (!ssl3_setup_write_buffer(s))
-        return 0;
-    return 1;
-}
-
-int ssl3_release_write_buffer(SSL *s)
-{
-    SSL3_BUFFER *wb;
-
-    wb = RECORD_LAYER_get_wbuf(&s->rlayer);
-
-    if (wb->buf != NULL) {
-        OPENSSL_free(wb->buf);
-        wb->buf = NULL;
-    }
-    return 1;
-}
-
-int ssl3_release_read_buffer(SSL *s)
-{
-    SSL3_BUFFER *b;
-
-    b = RECORD_LAYER_get_rbuf(&s->rlayer);
-    if (b->buf != NULL) {
-        OPENSSL_free(b->buf);
-        b->buf = NULL;
-    }
-    return 1;
-}
-
 int ssl_allow_compression(SSL *s)
 {
     if (s->options & SSL_OP_NO_COMPRESSION)
diff --git a/ssl/ssl_locl.h b/ssl/ssl_locl.h
index 04261906ec..9a366554be 100644
--- a/ssl/ssl_locl.h
+++ b/ssl/ssl_locl.h
@@ -2101,11 +2101,6 @@ void ssl3_free_digest_list(SSL *s);
 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
 __owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
                                STACK_OF(SSL_CIPHER) *srvr);
-__owur int ssl3_setup_buffers(SSL *s);
-__owur int ssl3_setup_read_buffer(SSL *s);
-__owur int ssl3_setup_write_buffer(SSL *s);
-int ssl3_release_read_buffer(SSL *s);
-int ssl3_release_write_buffer(SSL *s);
 __owur int ssl3_digest_cached_records(SSL *s);
 __owur int ssl3_new(SSL *s);
 void ssl3_free(SSL *s);