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netfilter: nf_tables_offload: add nft_flow_cls_offload_setup()

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Add helper function to set up the flow_cls_offload object.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2019-10-16 14:29:59 +02:00
parent b58288804a
commit c5d275276f
1 changed files with 24 additions and 13 deletions
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37
net/netfilter/nf_tables_offload.c
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@ -155,30 +155,41 @@ int nft_chain_offload_priority(struct nft_base_chain *basechain)
return 0; return 0;
} }
static void nft_flow_cls_offload_setup(struct flow_cls_offload *cls_flow,
const struct nft_base_chain *basechain,
const struct nft_rule *rule,
const struct nft_flow_rule *flow,
enum flow_cls_command command)
{
struct netlink_ext_ack extack;
__be16 proto = ETH_P_ALL;
memset(cls_flow, 0, sizeof(*cls_flow));
if (flow)
proto = flow->proto;
nft_flow_offload_common_init(&cls_flow->common, proto,
basechain->ops.priority, &extack);
cls_flow->command = command;
cls_flow->cookie = (unsigned long) rule;
if (flow)
cls_flow->rule = flow->rule;
}
static int nft_flow_offload_rule(struct nft_chain *chain, static int nft_flow_offload_rule(struct nft_chain *chain,
struct nft_rule *rule, struct nft_rule *rule,
struct nft_flow_rule *flow, struct nft_flow_rule *flow,
enum flow_cls_command command) enum flow_cls_command command)
{ {
struct flow_cls_offload cls_flow = {}; struct flow_cls_offload cls_flow;
struct nft_base_chain *basechain; struct nft_base_chain *basechain;
struct netlink_ext_ack extack;
__be16 proto = ETH_P_ALL;
if (!nft_is_base_chain(chain)) if (!nft_is_base_chain(chain))
return -EOPNOTSUPP; return -EOPNOTSUPP;
basechain = nft_base_chain(chain); basechain = nft_base_chain(chain);
nft_flow_cls_offload_setup(&cls_flow, basechain, rule, flow, command);
if (flow)
proto = flow->proto;
nft_flow_offload_common_init(&cls_flow.common, proto,
basechain->ops.priority, &extack);
cls_flow.command = command;
cls_flow.cookie = (unsigned long) rule;
if (flow)
cls_flow.rule = flow->rule;
return nft_setup_cb_call(TC_SETUP_CLSFLOWER, &cls_flow, return nft_setup_cb_call(TC_SETUP_CLSFLOWER, &cls_flow,
&basechain->flow_block.cb_list); &basechain->flow_block.cb_list);