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authorFlorian Westphal <fw@strlen.de>2017-05-18 13:30:54 +0200
committerFlorian Westphal <fw@strlen.de>2017-05-18 18:32:08 +0200
commit8d8cfe5ad6ca460a5262fb15fdbef3601058c784 (patch)
treeb52dd6b952ede16f6dbda1341dd60e388637091d /src
parent1e6ae0e42bdc161d178277c336886e18c259caf5 (diff)
payload: split ll proto dependency into helper
will be re-used in folloup patch for icmp/icmpv6 depenency handling. Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'src')
-rw-r--r--src/payload.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/src/payload.c b/src/payload.c
index 55128fee..31e5a024 100644
--- a/src/payload.c
+++ b/src/payload.c
@@ -224,21 +224,28 @@ static int payload_add_dependency(struct eval_ctx *ctx,
}
static const struct proto_desc *
+payload_get_get_ll_hdr(const struct eval_ctx *ctx)
+{
+ switch (ctx->pctx.family) {
+ case NFPROTO_INET:
+ return &proto_inet;
+ case NFPROTO_BRIDGE:
+ return &proto_eth;
+ case NFPROTO_NETDEV:
+ return &proto_netdev;
+ default:
+ break;
+ }
+
+ return NULL;
+}
+
+static const struct proto_desc *
payload_gen_special_dependency(struct eval_ctx *ctx, const struct expr *expr)
{
switch (expr->payload.base) {
case PROTO_BASE_LL_HDR:
- switch (ctx->pctx.family) {
- case NFPROTO_INET:
- return &proto_inet;
- case NFPROTO_BRIDGE:
- return &proto_eth;
- case NFPROTO_NETDEV:
- return &proto_netdev;
- default:
- break;
- }
- break;
+ return payload_get_get_ll_hdr(ctx);
case PROTO_BASE_TRANSPORT_HDR:
if (expr->payload.desc == &proto_icmp)
return &proto_ip;