refs #5025 Fixed issue where the verification tool incorrectly decompresses old nodes.

git-svn-id: file:///svn/toku/tokudb@45679 c7de825b-a66e-492c-adef-691d508d4ae1

ft/ft-internal.h

@@ -524,6 +524,11 @@ int toku_deserialize_bp_from_disk(FTNODE node, FTNODE_DISK_DATA ndd, int childnu
 int toku_deserialize_bp_from_compressed(FTNODE node, int childnum, DESCRIPTOR desc, ft_compare_func cmp);
 int toku_deserialize_ftnode_from (int fd, BLOCKNUM off, u_int32_t /*fullhash*/, FTNODE *ftnode, FTNODE_DISK_DATA* ndd, struct ftnode_fetch_extra* bfe);
 
+// <CER> For verifying old, non-upgraded nodes (versions 13 and 14).
+int
+decompress_from_raw_block_into_rbuf(u_int8_t *raw_block, size_t raw_block_size, struct rbuf *rb, BLOCKNUM blocknum);
+// 
+    
 //////////////// <CER> TODO: Move these function declarations
 int
 deserialize_ft_from_fd_into_rbuf(int fd,

ft/ft_node-serialize.c

@@ -2749,7 +2749,7 @@ deserialize_rollback_log_from_rbuf_versioned (u_int32_t version, BLOCKNUM blockn
     return r;
 }
 
-static int
+int
 decompress_from_raw_block_into_rbuf(u_int8_t *raw_block, size_t raw_block_size, struct rbuf *rb, BLOCKNUM blocknum) {
     toku_trace("decompress");
     int r = 0;

ft/ftverify.c

@@ -239,7 +239,16 @@ check_block(BLOCKNUM blocknum, int64_t UU(blocksize), int64_t UU(address), void
     // of the nodes on disk does indeed change in the future.
     if (version < FT_FIRST_LAYOUT_VERSION_WITH_BASEMENT_NODES)
     {
-        r = check_old_node(node, &rb, version);
+        struct rbuf nrb;
+        // Use old decompression method for legacy nodes.
+        r = decompress_from_raw_block_into_rbuf(rb.buf, rb.size, &nrb, blocknum);
+        if (r != 0) {
+            failure++;
+            goto cleanup;
+        }
+        
+        // Check the end-to-end checksum.
+        r = check_old_node(node, &nrb, version);
         if (r != 0) {
             failure++;
         }