Move ovs_ct_add_helper from openvswitch to nf_conntrack_helper and rename as nf_ct_add_helper, so that it can be used in TC act_ct in the next patch.
Signed-off-by: Xin Long <[email protected]> --- include/net/netfilter/nf_conntrack_helper.h | 2 + net/netfilter/nf_conntrack_helper.c | 31 +++++++++++++++ net/openvswitch/conntrack.c | 44 +++------------------ 3 files changed, 38 insertions(+), 39 deletions(-) diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h index 6c32e59fc16f..ad1adbfbeee2 100644 --- a/include/net/netfilter/nf_conntrack_helper.h +++ b/include/net/netfilter/nf_conntrack_helper.h @@ -116,6 +116,8 @@ int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl, gfp_t flags); int nf_ct_helper(struct sk_buff *skb, u16 proto); +int nf_ct_add_helper(struct nf_conn *ct, const char *name, u8 family, + u8 proto, bool nat, struct nf_conntrack_helper **hp); void nf_ct_helper_destroy(struct nf_conn *ct); diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index 83615e479f87..ee22b8a059cd 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -311,6 +311,37 @@ int nf_ct_helper(struct sk_buff *skb, u16 proto) } EXPORT_SYMBOL_GPL(nf_ct_helper); +int nf_ct_add_helper(struct nf_conn *ct, const char *name, u8 family, + u8 proto, bool nat, struct nf_conntrack_helper **hp) +{ + struct nf_conntrack_helper *helper; + struct nf_conn_help *help; + int err; + + helper = nf_conntrack_helper_try_module_get(name, family, proto); + if (!helper) + return -EINVAL; + + help = nf_ct_helper_ext_add(ct, GFP_KERNEL); + if (!help) { + nf_conntrack_helper_put(helper); + return -ENOMEM; + } +#if IS_ENABLED(CONFIG_NF_NAT) + if (nat) { + err = nf_nat_helper_try_module_get(name, family, proto); + if (err) { + nf_conntrack_helper_put(helper); + return err; + } + } +#endif + rcu_assign_pointer(help->helper, helper); + *hp = helper; + return 0; +} +EXPORT_SYMBOL_GPL(nf_ct_add_helper); + /* appropriate ct lock protecting must be taken by caller */ static int unhelp(struct nf_conn *ct, void *me) { diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index 19b5c54615c8..d37011e678c2 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -1291,43 +1291,6 @@ int ovs_ct_clear(struct sk_buff *skb, struct sw_flow_key *key) return 0; } -static int ovs_ct_add_helper(struct ovs_conntrack_info *info, const char *name, - const struct sw_flow_key *key, bool log) -{ - struct nf_conntrack_helper *helper; - struct nf_conn_help *help; - int ret = 0; - - helper = nf_conntrack_helper_try_module_get(name, info->family, - key->ip.proto); - if (!helper) { - OVS_NLERR(log, "Unknown helper \"%s\"", name); - return -EINVAL; - } - - help = nf_ct_helper_ext_add(info->ct, GFP_KERNEL); - if (!help) { - nf_conntrack_helper_put(helper); - return -ENOMEM; - } - -#if IS_ENABLED(CONFIG_NF_NAT) - if (info->nat) { - ret = nf_nat_helper_try_module_get(name, info->family, - key->ip.proto); - if (ret) { - nf_conntrack_helper_put(helper); - OVS_NLERR(log, "Failed to load \"%s\" NAT helper, error: %d", - name, ret); - return ret; - } - } -#endif - rcu_assign_pointer(help->helper, helper); - info->helper = helper; - return ret; -} - #if IS_ENABLED(CONFIG_NF_NAT) static int parse_nat(const struct nlattr *attr, struct ovs_conntrack_info *info, bool log) @@ -1661,9 +1624,12 @@ int ovs_ct_copy_action(struct net *net, const struct nlattr *attr, } if (helper) { - err = ovs_ct_add_helper(&ct_info, helper, key, log); - if (err) + err = nf_ct_add_helper(ct_info.ct, helper, ct_info.family, + key->ip.proto, ct_info.nat, &ct_info.helper); + if (err) { + OVS_NLERR(log, "Failed to add %s helper %d", helper, err); goto err_free_ct; + } } err = ovs_nla_add_action(sfa, OVS_ACTION_ATTR_CT, &ct_info, -- 2.31.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
