diff options
| -rw-r--r-- | ofproto/ofproto-dpif.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/ofproto/ofproto-dpif.c b/ofproto/ofproto-dpif.c index ac196eeb6..4bf1ea067 100644 --- a/ofproto/ofproto-dpif.c +++ b/ofproto/ofproto-dpif.c @@ -65,6 +65,10 @@ COVERAGE_DEFINE(facet_unexpected); * flow translation. */ #define MAX_RESUBMIT_RECURSION 16 +/* Number of implemented OpenFlow tables. */ +enum { N_TABLES = 255 }; +BUILD_ASSERT_DECL(N_TABLES >= 1 && N_TABLES <= 255); + struct ofport_dpif; struct ofproto_dpif; @@ -473,7 +477,7 @@ construct(struct ofproto *ofproto_, int *n_tablesp) ofproto->has_bundle_action = false; - *n_tablesp = 255; + *n_tablesp = N_TABLES; return 0; } @@ -2630,6 +2634,10 @@ static struct rule_dpif * rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow, uint8_t table_id) { + if (table_id >= N_TABLES) { + return NULL; + } + return rule_dpif_cast(rule_from_cls_rule( classifier_lookup(&ofproto->up.tables[table_id], flow))); |