uint16_t out_port;
struct ofpbuf *buffer;
struct ofp_flow_mod *ofm;
+ struct ofp_match match;
- /* Parse and send. */
- ofm = make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer);
- str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, NULL,
- &out_port, &priority, NULL, NULL);
+ /* Parse and send. str_to_flow() will expand and reallocate the data in
+ * 'buffer', so we can't keep pointers to across the str_to_flow() call. */
+ make_openflow(sizeof *ofm, OFPT_FLOW_MOD, &buffer);
+ str_to_flow(argc > 2 ? argv[2] : "", &match, buffer,
+ NULL, &out_port, &priority, NULL, NULL);
+ ofm = buffer->data;
+ ofm->match = match;
if (s->strict) {
ofm->command = htons(OFPFC_DELETE_STRICT);
} else {