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netfilter: flowtable: add nf_flow_offload_tuple() helper

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Consolidate code to configure the flow_cls_offload structure into one
helper function.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2020-01-13 19:02:14 +01:00
parent 28b3a4270c
commit ae29045018
1 changed files with 24 additions and 23 deletions
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47
net/netfilter/nf_flow_table_offload.c
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@ -592,23 +592,25 @@ static void nf_flow_offload_init(struct flow_cls_offload *cls_flow,
cls_flow->cookie = (unsigned long)tuple;
}
static int flow_offload_tuple_add(struct flow_offload_work *offload,
struct nf_flow_rule *flow_rule,
enum flow_offload_tuple_dir dir)
static int nf_flow_offload_tuple(struct nf_flowtable *flowtable,
struct flow_offload *flow,
struct nf_flow_rule *flow_rule,
enum flow_offload_tuple_dir dir,
int priority, int cmd,
struct list_head *block_cb_list)
{
struct nf_flowtable *flowtable = offload->flowtable;
struct flow_cls_offload cls_flow = {};
struct flow_block_cb *block_cb;
struct netlink_ext_ack extack;
__be16 proto = ETH_P_ALL;
int err, i = 0;
nf_flow_offload_init(&cls_flow, proto, offload->priority,
FLOW_CLS_REPLACE,
&offload->flow->tuplehash[dir].tuple, &extack);
cls_flow.rule = flow_rule->rule;
nf_flow_offload_init(&cls_flow, proto, priority, cmd,
&flow->tuplehash[dir].tuple, &extack);
if (cmd == FLOW_CLS_REPLACE)
cls_flow.rule = flow_rule->rule;
list_for_each_entry(block_cb, &flowtable->flow_block.cb_list, list) {
list_for_each_entry(block_cb, block_cb_list, list) {
err = block_cb->cb(TC_SETUP_CLSFLOWER, &cls_flow,
block_cb->cb_priv);
if (err < 0)
@ -620,23 +622,22 @@ static int flow_offload_tuple_add(struct flow_offload_work *offload,
return i;
}
static int flow_offload_tuple_add(struct flow_offload_work *offload,
struct nf_flow_rule *flow_rule,
enum flow_offload_tuple_dir dir)
{
return nf_flow_offload_tuple(offload->flowtable, offload->flow,
flow_rule, dir, offload->priority,
FLOW_CLS_REPLACE,
&offload->flowtable->flow_block.cb_list);
}
static void flow_offload_tuple_del(struct flow_offload_work *offload,
enum flow_offload_tuple_dir dir)
{
struct nf_flowtable *flowtable = offload->flowtable;
struct flow_cls_offload cls_flow = {};
struct flow_block_cb *block_cb;
struct netlink_ext_ack extack;
__be16 proto = ETH_P_ALL;
nf_flow_offload_init(&cls_flow, proto, offload->priority,
FLOW_CLS_DESTROY,
&offload->flow->tuplehash[dir].tuple, &extack);
list_for_each_entry(block_cb, &flowtable->flow_block.cb_list, list)
block_cb->cb(TC_SETUP_CLSFLOWER, &cls_flow, block_cb->cb_priv);
set_bit(NF_FLOW_HW_DEAD, &offload->flow->flags);
nf_flow_offload_tuple(offload->flowtable, offload->flow, NULL, dir,
offload->priority, FLOW_CLS_DESTROY,
&offload->flowtable->flow_block.cb_list);
}
static int flow_offload_rule_add(struct flow_offload_work *offload,