From fa42f2118746f35ae6883ef5b0d4758863282fc9 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Sun, 3 Dec 2017 21:27:03 +0100 Subject: src: flow offload support This patch allows us to refer to existing flowtables: # nft add rule x x flow offload @m Packets matching this rule create an entry in the flow table 'm', hence, follow up packets that get to the flowtable at ingress bypass the classic forwarding path. Signed-off-by: Pablo Neira Ayuso --- include/ct.h | 2 ++ include/statement.h | 9 +++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/ct.h b/include/ct.h index ec5d55d8..2c3392d3 100644 --- a/include/ct.h +++ b/include/ct.h @@ -29,6 +29,8 @@ extern struct expr *ct_expr_alloc(const struct location *loc, extern void ct_expr_update_type(struct proto_ctx *ctx, struct expr *expr); extern struct stmt *notrack_stmt_alloc(const struct location *loc); +extern struct stmt *flow_offload_stmt_alloc(const struct location *loc, + const char *table_name); extern const struct datatype ct_dir_type; extern const struct datatype ct_state_type; diff --git a/include/statement.h b/include/statement.h index 379d99e4..27c73567 100644 --- a/include/statement.h +++ b/include/statement.h @@ -10,6 +10,12 @@ extern struct stmt *expr_stmt_alloc(const struct location *loc, extern struct stmt *verdict_stmt_alloc(const struct location *loc, struct expr *expr); +struct flow_stmt { + const char *table_name; +}; + +struct stmt *flow_stmt_alloc(const struct location *loc, const char *name); + struct objref_stmt { uint32_t type; struct expr *expr; @@ -231,6 +237,7 @@ extern struct stmt *xt_stmt_alloc(const struct location *loc); * @STMT_NOTRACK: notrack statement * @STMT_OBJREF: stateful object reference statement * @STMT_EXTHDR: extension header statement + * @STMT_FLOW_OFFLOAD: flow offload statement */ enum stmt_types { STMT_INVALID, @@ -256,6 +263,7 @@ enum stmt_types { STMT_NOTRACK, STMT_OBJREF, STMT_EXTHDR, + STMT_FLOW_OFFLOAD, }; /** @@ -316,6 +324,7 @@ struct stmt { struct fwd_stmt fwd; struct xt_stmt xt; struct objref_stmt objref; + struct flow_stmt flow; }; }; -- cgit v1.2.3