Make SSL_alloc_buffers() and SSL_free_buffers() work again

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19472)

1 files changed, 12 insertions, 0 deletions

diff --git a/ssl/record/recordmethod.h b/ssl/record/recordmethod.h
index 3bbca66fed..70e6e4d26a 100644
--- a/ssl/record/recordmethod.h
+++ b/ssl/record/recordmethod.h
@@ -320,6 +320,18 @@ struct ossl_record_method_st {
      * Increment the record sequence number
      */
     int (*increment_sequence_ctr)(OSSL_RECORD_LAYER *rl);
+
+    /*
+     * Allocate read or write buffers. Does nothing if already allocated.
+     * Assumes default buffer length and 1 pipeline.
+     */
+    int (*alloc_buffers)(OSSL_RECORD_LAYER *rl);
+
+    /*
+     * Free read or write buffers. Fails if there is pending read or write
+     * data. Buffers are automatically reallocated on next read/write.
+     */
+    int (*free_buffers)(OSSL_RECORD_LAYER *rl);
 };