diff options
Diffstat (limited to 'src/payload.c')
| -rw-r--r-- | src/payload.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/payload.c b/src/payload.c index abd5339c..3576400b 100644 --- a/src/payload.c +++ b/src/payload.c @@ -529,6 +529,18 @@ static bool payload_may_dependency_kill(struct payload_dep_ctx *ctx, dep->left->payload.desc == &proto_ip6) && expr->payload.base == PROTO_BASE_TRANSPORT_HDR) return false; + /* Do not kill + * ether type vlan and vlan type ip and ip protocol icmp + * into + * ip protocol icmp + * as this lacks ether type vlan. + * More generally speaking, do not kill protocol type + * for stacked protocols if we only have protcol type matches. + */ + if (dep->left->etype == EXPR_PAYLOAD && dep->op == OP_EQ && + expr->flags & EXPR_F_PROTOCOL && + expr->payload.base == dep->left->payload.base) + return false; break; } |