src: add dl_proto_ctx()

Add dl_proto_ctx() to access protocol context (struct proto_ctx and
struct payload_dep_ctx) from the delinearize path.

This patch comes in preparation for supporting outer and inner
protocol context.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/xt.c b/src/xt.c
index 9bfd8a2f..2405d3c3 100644
--- a/src/xt.c
+++ b/src/xt.c
@@ -267,10 +267,12 @@ static bool is_watcher(uint32_t family, struct stmt *stmt)
 void stmt_xt_postprocess(struct rule_pp_ctx *rctx, struct stmt *stmt,
 			 struct rule *rule)
 {
-	if (is_watcher(rctx->pctx.family, stmt))
+	struct dl_proto_ctx *dl = dl_proto_ctx(rctx);
+
+	if (is_watcher(dl->pctx.family, stmt))
 		stmt->xt.type = NFT_XT_WATCHER;
 
-	stmt->xt.proto = xt_proto(&rctx->pctx);
+	stmt->xt.proto = xt_proto(&dl->pctx);
 }
 
 static int nft_xt_compatible_revision(const char *name, uint8_t rev, int opt)