| Message ID | d7a2bbc1b84729d619f20446b51ab461b788adb6.1675810210.git.lucien.xin@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 1b83bf4489cbc47d88976291cc967a17adb8e118 |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: move more duplicate code of ovs and tc conntrack into nf_conntrack_ovs | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/subject_prefix | success | Link |
| netdev/cover_letter | success | Series has a cover letter |
| netdev/patch_count | success | Link |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/cc_maintainers | success | CCed 7 of 7 maintainers |
| netdev/build_clang | success | Errors and warnings before: 0 this patch: 0 |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/check_selftest | success | No net selftest shell script |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/checkpatch | warning | WARNING: line length of 84 exceeds 80 columns |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
On Tue, Feb 07, 2023 at 05:52:08PM -0500, Xin Long wrote: > This patch has no functional changes and just moves key and ovs_cb update > out of handle_fragments, and skb_clear_hash() and skb->ignore_df change > into handle_fragments(), to make it easier to move the duplicate code > from handle_fragments() into nf_conntrack_ovs later. > > Note that it changes to pass info->family to handle_fragments() instead > of key for the packet type check, as info->family is set according to > key->eth.type in ovs_ct_copy_action() when creating the action. > > Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: Simon Horman <simon.horman@corigine.com>
Xin Long <lucien.xin@gmail.com> writes: > This patch has no functional changes and just moves key and ovs_cb update > out of handle_fragments, and skb_clear_hash() and skb->ignore_df change > into handle_fragments(), to make it easier to move the duplicate code > from handle_fragments() into nf_conntrack_ovs later. > > Note that it changes to pass info->family to handle_fragments() instead > of key for the packet type check, as info->family is set according to > key->eth.type in ovs_ct_copy_action() when creating the action. > > Signed-off-by: Xin Long <lucien.xin@gmail.com> > --- Reviewed-by: Aaron Conole <aconole@redhat.com>
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c index 47a58657b1e4..962e2f70e597 100644 --- a/net/openvswitch/conntrack.c +++ b/net/openvswitch/conntrack.c @@ -437,13 +437,12 @@ static int ovs_ct_set_labels(struct nf_conn *ct, struct sw_flow_key *key, /* Returns 0 on success, -EINPROGRESS if 'skb' is stolen, or other nonzero * value if 'skb' is freed. */ -static int handle_fragments(struct net *net, struct sw_flow_key *key, - u16 zone, struct sk_buff *skb) +static int handle_fragments(struct net *net, struct sk_buff *skb, + u16 zone, u8 family, u8 *proto, u16 *mru) { - struct ovs_skb_cb ovs_cb = *OVS_CB(skb); int err; - if (key->eth.type == htons(ETH_P_IP)) { + if (family == NFPROTO_IPV4) { enum ip_defrag_users user = IP_DEFRAG_CONNTRACK_IN + zone; memset(IPCB(skb), 0, sizeof(struct inet_skb_parm)); @@ -451,9 +450,9 @@ static int handle_fragments(struct net *net, struct sw_flow_key *key, if (err) return err; - ovs_cb.mru = IPCB(skb)->frag_max_size; + *mru = IPCB(skb)->frag_max_size; #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) - } else if (key->eth.type == htons(ETH_P_IPV6)) { + } else if (family == NFPROTO_IPV6) { enum ip6_defrag_users user = IP6_DEFRAG_CONNTRACK_IN + zone; memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm)); @@ -464,22 +463,35 @@ static int handle_fragments(struct net *net, struct sw_flow_key *key, return err; } - key->ip.proto = ipv6_hdr(skb)->nexthdr; - ovs_cb.mru = IP6CB(skb)->frag_max_size; + *proto = ipv6_hdr(skb)->nexthdr; + *mru = IP6CB(skb)->frag_max_size; #endif } else { kfree_skb(skb); return -EPFNOSUPPORT; } + skb_clear_hash(skb); + skb->ignore_df = 1; + + return 0; +} + +static int ovs_ct_handle_fragments(struct net *net, struct sw_flow_key *key, + u16 zone, int family, struct sk_buff *skb) +{ + struct ovs_skb_cb ovs_cb = *OVS_CB(skb); + int err; + + err = handle_fragments(net, skb, zone, family, &key->ip.proto, &ovs_cb.mru); + if (err) + return err; + /* The key extracted from the fragment that completed this datagram * likely didn't have an L4 header, so regenerate it. */ ovs_flow_key_update_l3l4(skb, key); - key->ip.frag = OVS_FRAG_TYPE_NONE; - skb_clear_hash(skb); - skb->ignore_df = 1; *OVS_CB(skb) = ovs_cb; return 0; @@ -1111,7 +1123,8 @@ int ovs_ct_execute(struct net *net, struct sk_buff *skb, } if (key->ip.frag != OVS_FRAG_TYPE_NONE) { - err = handle_fragments(net, key, info->zone.id, skb); + err = ovs_ct_handle_fragments(net, key, info->zone.id, + info->family, skb); if (err) return err; }
This patch has no functional changes and just moves key and ovs_cb update out of handle_fragments, and skb_clear_hash() and skb->ignore_df change into handle_fragments(), to make it easier to move the duplicate code from handle_fragments() into nf_conntrack_ovs later. Note that it changes to pass info->family to handle_fragments() instead of key for the packet type check, as info->family is set according to key->eth.type in ovs_ct_copy_action() when creating the action. Signed-off-by: Xin Long <lucien.xin@gmail.com> --- net/openvswitch/conntrack.c | 37 +++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 12 deletions(-)