Move s->s3->wbuf to s->rlayer->wbuf

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

ssl/record/rec_layer.h

@@ -121,10 +121,12 @@ typedef struct record_layer_st {
     int read_ahead;
     /* read IO goes into here */
     SSL3_BUFFER rbuf;
+    /* write IO goes into here */
+    SSL3_BUFFER wbuf;
 } RECORD_LAYER;
 
 #define RECORD_LAYER_set_ssl(rl, s)             ((rl)->s = (s))
 #define RECORD_LAYER_set_read_ahead(rl, ra)     ((rl)->read_ahead = (ra))
 #define RECORD_LAYER_get_read_ahead(rl)         ((rl)->read_ahead)
 #define RECORD_LAYER_get_rbuf(rl)               (&(rl)->rbuf)
-#define RECORD_LAYER_get_wbuf(rl)               (&(rl)->s->s3->wbuf)
+#define RECORD_LAYER_get_wbuf(rl)               (&(rl)->wbuf)

ssl/s3_lib.c

@@ -3131,8 +3131,6 @@ void ssl3_free(SSL *s)
         return;
 
     ssl3_cleanup_key_block(s);
-    if (SSL3_BUFFER_is_initialised(RECORD_LAYER_get_wbuf(&s->rlayer)))
-        ssl3_release_write_buffer(s);
     if (s->s3->rrec.comp != NULL)
         OPENSSL_free(s->s3->rrec.comp);
 #ifndef OPENSSL_NO_DH
@@ -3162,8 +3160,6 @@ void ssl3_free(SSL *s)
 
 void ssl3_clear(SSL *s)
 {
-    unsigned char *wp;
-    size_t wlen;
     int init_extra;
 
     ssl3_cleanup_key_block(s);
@@ -3188,8 +3184,6 @@ void ssl3_clear(SSL *s)
 # endif                         /* !OPENSSL_NO_EC */
 #endif                          /* !OPENSSL_NO_TLSEXT */
 
-    wp = SSL3_BUFFER_get_buf(RECORD_LAYER_get_wbuf(&s->rlayer));
-    wlen = SSL3_BUFFER_get_len(RECORD_LAYER_get_wbuf(&s->rlayer));
     init_extra = s->s3->init_extra;
     BIO_free(s->s3->handshake_buffer);
     s->s3->handshake_buffer = NULL;
@@ -3203,8 +3197,6 @@ void ssl3_clear(SSL *s)
     }
 #endif
     memset(s->s3, 0, sizeof *s->s3);
-    SSL3_BUFFER_set_buf(RECORD_LAYER_get_wbuf(&s->rlayer), wp);
-    SSL3_BUFFER_set_len(RECORD_LAYER_get_wbuf(&s->rlayer), wlen);
     s->s3->init_extra = init_extra;
 
     ssl_free_wbio_buffer(s);

ssl/ssl_lib.c

@@ -189,8 +189,8 @@ SSL3_ENC_METHOD ssl3_undef_enc_method = {
 
 int SSL_clear(SSL *s)
 {
-    unsigned char *rp;
-    size_t rlen;
+    unsigned char *rp, *wp;
+    size_t rlen, wlen;
     int read_ahead;
 
     if (s->method == NULL) {
@@ -248,9 +248,13 @@ int SSL_clear(SSL *s)
     read_ahead = RECORD_LAYER_get_read_ahead(&s->rlayer);
     rp = SSL3_BUFFER_get_buf(RECORD_LAYER_get_rbuf(&s->rlayer));
     rlen = SSL3_BUFFER_get_len(RECORD_LAYER_get_rbuf(&s->rlayer));
+    wp = SSL3_BUFFER_get_buf(RECORD_LAYER_get_wbuf(&s->rlayer));
+    wlen = SSL3_BUFFER_get_len(RECORD_LAYER_get_wbuf(&s->rlayer));
     memset(&s->rlayer, 0, sizeof s->rlayer);
     SSL3_BUFFER_set_buf(RECORD_LAYER_get_rbuf(&s->rlayer), rp);
     SSL3_BUFFER_set_len(RECORD_LAYER_get_rbuf(&s->rlayer), rlen);
+    SSL3_BUFFER_set_buf(RECORD_LAYER_get_wbuf(&s->rlayer), wp);
+    SSL3_BUFFER_set_len(RECORD_LAYER_get_wbuf(&s->rlayer), wlen);
 
     /* Do I need to do this? As far as I can tell read_ahead did not
      * previously get reset by SSL_clear...so I'll keep it that way..but is
@@ -619,6 +623,8 @@ void SSL_free(SSL *s)
 
     if (SSL3_BUFFER_is_initialised(RECORD_LAYER_get_rbuf(&s->rlayer)))
         ssl3_release_read_buffer(s);
+    if (SSL3_BUFFER_is_initialised(RECORD_LAYER_get_wbuf(&s->rlayer)))
+        ssl3_release_write_buffer(s);
 
     if (s->ctx)
         SSL_CTX_free(s->ctx);

ssl/ssl_locl.h

@@ -1281,7 +1281,6 @@ typedef struct ssl3_state_st {
     int empty_fragment_done;
     /* The value of 'extra' when the buffers were initialized */
     int init_extra;
-    SSL3_BUFFER wbuf;           /* write IO goes into here */
     SSL3_RECORD rrec;           /* each decoded record goes in here */
     SSL3_RECORD wrec;           /* goes out from here */
     /*