Lines Matching refs:skb
36 struct sk_buff *skb; member
123 static struct deferred_action *add_deferred_actions(struct sk_buff *skb, in add_deferred_actions() argument
134 da->skb = skb; in add_deferred_actions()
153 static int clone_execute(struct datapath *dp, struct sk_buff *skb,
159 static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
163 static int push_mpls(struct sk_buff *skb, struct sw_flow_key *key, in push_mpls() argument
168 err = skb_mpls_push(skb, mpls->mpls_lse, mpls->mpls_ethertype, in push_mpls()
169 skb->mac_len, in push_mpls()
178 static int pop_mpls(struct sk_buff *skb, struct sw_flow_key *key, in pop_mpls() argument
183 err = skb_mpls_pop(skb, ethertype, skb->mac_len, in pop_mpls()
192 static int set_mpls(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_mpls() argument
199 stack = mpls_hdr(skb); in set_mpls()
201 err = skb_mpls_update_lse(skb, lse); in set_mpls()
209 static int pop_vlan(struct sk_buff *skb, struct sw_flow_key *key) in pop_vlan() argument
213 err = skb_vlan_pop(skb); in pop_vlan()
214 if (skb_vlan_tag_present(skb)) { in pop_vlan()
223 static int push_vlan(struct sk_buff *skb, struct sw_flow_key *key, in push_vlan() argument
226 if (skb_vlan_tag_present(skb)) { in push_vlan()
232 return skb_vlan_push(skb, vlan->vlan_tpid, in push_vlan()
248 static int set_eth_addr(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_eth_addr() argument
254 err = skb_ensure_writable(skb, ETH_HLEN); in set_eth_addr()
258 skb_postpull_rcsum(skb, eth_hdr(skb), ETH_ALEN * 2); in set_eth_addr()
260 ether_addr_copy_masked(eth_hdr(skb)->h_source, key->eth_src, in set_eth_addr()
262 ether_addr_copy_masked(eth_hdr(skb)->h_dest, key->eth_dst, in set_eth_addr()
265 skb_postpush_rcsum(skb, eth_hdr(skb), ETH_ALEN * 2); in set_eth_addr()
267 ether_addr_copy(flow_key->eth.src, eth_hdr(skb)->h_source); in set_eth_addr()
268 ether_addr_copy(flow_key->eth.dst, eth_hdr(skb)->h_dest); in set_eth_addr()
275 static int pop_eth(struct sk_buff *skb, struct sw_flow_key *key) in pop_eth() argument
277 skb_pull_rcsum(skb, ETH_HLEN); in pop_eth()
278 skb_reset_mac_header(skb); in pop_eth()
279 skb_reset_mac_len(skb); in pop_eth()
287 static int push_eth(struct sk_buff *skb, struct sw_flow_key *key, in push_eth() argument
293 if (skb_cow_head(skb, ETH_HLEN) < 0) in push_eth()
296 skb_push(skb, ETH_HLEN); in push_eth()
297 skb_reset_mac_header(skb); in push_eth()
298 skb_reset_mac_len(skb); in push_eth()
300 hdr = eth_hdr(skb); in push_eth()
303 hdr->h_proto = skb->protocol; in push_eth()
305 skb_postpush_rcsum(skb, hdr, ETH_HLEN); in push_eth()
313 static int push_nsh(struct sk_buff *skb, struct sw_flow_key *key, in push_nsh() argument
318 err = nsh_push(skb, nh); in push_nsh()
328 static int pop_nsh(struct sk_buff *skb, struct sw_flow_key *key) in pop_nsh() argument
332 err = nsh_pop(skb); in pop_nsh()
337 if (skb->protocol == htons(ETH_P_TEB)) in pop_nsh()
345 static void update_ip_l4_checksum(struct sk_buff *skb, struct iphdr *nh, in update_ip_l4_checksum() argument
348 int transport_len = skb->len - skb_transport_offset(skb); in update_ip_l4_checksum()
355 inet_proto_csum_replace4(&tcp_hdr(skb)->check, skb, in update_ip_l4_checksum()
359 struct udphdr *uh = udp_hdr(skb); in update_ip_l4_checksum()
361 if (uh->check || skb->ip_summed == CHECKSUM_PARTIAL) { in update_ip_l4_checksum()
362 inet_proto_csum_replace4(&uh->check, skb, in update_ip_l4_checksum()
371 static void set_ip_addr(struct sk_buff *skb, struct iphdr *nh, in set_ip_addr() argument
374 update_ip_l4_checksum(skb, nh, *addr, new_addr); in set_ip_addr()
376 skb_clear_hash(skb); in set_ip_addr()
380 static void update_ipv6_checksum(struct sk_buff *skb, u8 l4_proto, in update_ipv6_checksum() argument
383 int transport_len = skb->len - skb_transport_offset(skb); in update_ipv6_checksum()
387 inet_proto_csum_replace16(&tcp_hdr(skb)->check, skb, in update_ipv6_checksum()
391 struct udphdr *uh = udp_hdr(skb); in update_ipv6_checksum()
393 if (uh->check || skb->ip_summed == CHECKSUM_PARTIAL) { in update_ipv6_checksum()
394 inet_proto_csum_replace16(&uh->check, skb, in update_ipv6_checksum()
402 inet_proto_csum_replace16(&icmp6_hdr(skb)->icmp6_cksum, in update_ipv6_checksum()
403 skb, addr, new_addr, true); in update_ipv6_checksum()
416 static void set_ipv6_addr(struct sk_buff *skb, u8 l4_proto, in set_ipv6_addr() argument
421 update_ipv6_checksum(skb, l4_proto, addr, new_addr); in set_ipv6_addr()
423 skb_clear_hash(skb); in set_ipv6_addr()
435 static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl, in set_ip_ttl() argument
444 static int set_ipv4(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_ipv4() argument
452 err = skb_ensure_writable(skb, skb_network_offset(skb) + in set_ipv4()
457 nh = ip_hdr(skb); in set_ipv4()
467 set_ip_addr(skb, nh, &nh->saddr, new_addr); in set_ipv4()
475 set_ip_addr(skb, nh, &nh->daddr, new_addr); in set_ipv4()
484 set_ip_ttl(skb, nh, key->ipv4_ttl, mask->ipv4_ttl); in set_ipv4()
496 static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_ipv6() argument
503 err = skb_ensure_writable(skb, skb_network_offset(skb) + in set_ipv6()
508 nh = ipv6_hdr(skb); in set_ipv6()
521 set_ipv6_addr(skb, flow_key->ip.proto, saddr, masked, in set_ipv6()
538 recalc_csum = (ipv6_find_hdr(skb, &offset, in set_ipv6()
543 set_ipv6_addr(skb, flow_key->ip.proto, daddr, masked, in set_ipv6()
567 static int set_nsh(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_nsh() argument
585 if (!pskb_may_pull(skb, skb_network_offset(skb) + NSH_BASE_HDR_LEN)) in set_nsh()
588 nh = nsh_hdr(skb); in set_nsh()
592 err = skb_ensure_writable(skb, skb_network_offset(skb) + in set_nsh()
597 nh = nsh_hdr(skb); in set_nsh()
598 skb_postpull_rcsum(skb, nh, length); in set_nsh()
626 skb_postpush_rcsum(skb, nh, length); in set_nsh()
631 static void set_tp_port(struct sk_buff *skb, __be16 *port, in set_tp_port() argument
634 inet_proto_csum_replace2(check, skb, *port, new_port, false); in set_tp_port()
638 static int set_udp(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_udp() argument
646 err = skb_ensure_writable(skb, skb_transport_offset(skb) + in set_udp()
651 uh = udp_hdr(skb); in set_udp()
656 if (uh->check && skb->ip_summed != CHECKSUM_PARTIAL) { in set_udp()
658 set_tp_port(skb, &uh->source, src, &uh->check); in set_udp()
662 set_tp_port(skb, &uh->dest, dst, &uh->check); in set_udp()
675 skb_clear_hash(skb); in set_udp()
680 static int set_tcp(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_tcp() argument
688 err = skb_ensure_writable(skb, skb_transport_offset(skb) + in set_tcp()
693 th = tcp_hdr(skb); in set_tcp()
696 set_tp_port(skb, &th->source, src, &th->check); in set_tcp()
701 set_tp_port(skb, &th->dest, dst, &th->check); in set_tcp()
704 skb_clear_hash(skb); in set_tcp()
709 static int set_sctp(struct sk_buff *skb, struct sw_flow_key *flow_key, in set_sctp() argument
713 unsigned int sctphoff = skb_transport_offset(skb); in set_sctp()
718 err = skb_ensure_writable(skb, sctphoff + sizeof(struct sctphdr)); in set_sctp()
722 sh = sctp_hdr(skb); in set_sctp()
724 old_correct_csum = sctp_compute_cksum(skb, sctphoff); in set_sctp()
729 new_csum = sctp_compute_cksum(skb, sctphoff); in set_sctp()
734 skb_clear_hash(skb); in set_sctp()
741 static int ovs_vport_output(struct net *net, struct sock *sk, struct sk_buff *skb) in ovs_vport_output() argument
746 if (skb_cow_head(skb, data->l2_len) < 0) { in ovs_vport_output()
747 kfree_skb(skb); in ovs_vport_output()
751 __skb_dst_copy(skb, data->dst); in ovs_vport_output()
752 *OVS_CB(skb) = data->cb; in ovs_vport_output()
753 skb->inner_protocol = data->inner_protocol; in ovs_vport_output()
755 __vlan_hwaccel_put_tag(skb, data->vlan_proto, data->vlan_tci & ~VLAN_CFI_MASK); in ovs_vport_output()
757 __vlan_hwaccel_clear_tag(skb); in ovs_vport_output()
760 skb_push(skb, data->l2_len); in ovs_vport_output()
761 memcpy(skb->data, &data->l2_data, data->l2_len); in ovs_vport_output()
762 skb_postpush_rcsum(skb, skb->data, data->l2_len); in ovs_vport_output()
763 skb_reset_mac_header(skb); in ovs_vport_output()
765 if (eth_p_mpls(skb->protocol)) { in ovs_vport_output()
766 skb->inner_network_header = skb->network_header; in ovs_vport_output()
767 skb_set_network_header(skb, data->network_offset); in ovs_vport_output()
768 skb_reset_mac_len(skb); in ovs_vport_output()
771 ovs_vport_send(vport, skb, data->mac_proto); in ovs_vport_output()
789 static void prepare_frag(struct vport *vport, struct sk_buff *skb, in prepare_frag() argument
792 unsigned int hlen = skb_network_offset(skb); in prepare_frag()
796 data->dst = skb->_skb_refdst; in prepare_frag()
798 data->cb = *OVS_CB(skb); in prepare_frag()
799 data->inner_protocol = skb->inner_protocol; in prepare_frag()
801 if (skb_vlan_tag_present(skb)) in prepare_frag()
802 data->vlan_tci = skb_vlan_tag_get(skb) | VLAN_CFI_MASK; in prepare_frag()
805 data->vlan_proto = skb->vlan_proto; in prepare_frag()
808 memcpy(&data->l2_data, skb->data, hlen); in prepare_frag()
810 memset(IPCB(skb), 0, sizeof(struct inet_skb_parm)); in prepare_frag()
811 skb_pull(skb, hlen); in prepare_frag()
815 struct sk_buff *skb, u16 mru, in ovs_fragment() argument
820 if (eth_p_mpls(skb->protocol)) { in ovs_fragment()
821 orig_network_offset = skb_network_offset(skb); in ovs_fragment()
822 skb->network_header = skb->inner_network_header; in ovs_fragment()
825 if (skb_network_offset(skb) > MAX_L2_LEN) { in ovs_fragment()
834 prepare_frag(vport, skb, orig_network_offset, in ovs_fragment()
840 orig_dst = skb->_skb_refdst; in ovs_fragment()
841 skb_dst_set_noref(skb, &ovs_dst); in ovs_fragment()
842 IPCB(skb)->frag_max_size = mru; in ovs_fragment()
844 ip_do_fragment(net, skb->sk, skb, ovs_vport_output); in ovs_fragment()
854 prepare_frag(vport, skb, orig_network_offset, in ovs_fragment()
861 orig_dst = skb->_skb_refdst; in ovs_fragment()
862 skb_dst_set_noref(skb, &ovs_rt.dst); in ovs_fragment()
863 IP6CB(skb)->frag_max_size = mru; in ovs_fragment()
865 v6ops->fragment(net, skb->sk, skb, ovs_vport_output); in ovs_fragment()
876 kfree_skb(skb); in ovs_fragment()
879 static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port, in do_output() argument
885 u16 mru = OVS_CB(skb)->mru; in do_output()
886 u32 cutlen = OVS_CB(skb)->cutlen; in do_output()
889 if (skb->len - cutlen > ovs_mac_header_len(key)) in do_output()
890 pskb_trim(skb, skb->len - cutlen); in do_output()
892 pskb_trim(skb, ovs_mac_header_len(key)); in do_output()
896 (skb->len <= mru + vport->dev->hard_header_len))) { in do_output()
897 ovs_vport_send(vport, skb, ovs_key_mac_proto(key)); in do_output()
901 ovs_fragment(net, vport, skb, mru, key); in do_output()
903 kfree_skb(skb); in do_output()
906 kfree_skb(skb); in do_output()
910 static int output_userspace(struct datapath *dp, struct sk_buff *skb, in output_userspace() argument
921 upcall.mru = OVS_CB(skb)->mru; in output_userspace()
942 err = dev_fill_metadata_dst(vport->dev, skb); in output_userspace()
944 upcall.egress_tun_info = skb_tunnel_info(skb); in output_userspace()
960 return ovs_dp_upcall(dp, skb, key, &upcall, cutlen); in output_userspace()
967 static int sample(struct datapath *dp, struct sk_buff *skb, in sample() argument
985 consume_skb(skb); in sample()
990 return clone_execute(dp, skb, key, 0, actions, rem, last, in sample()
998 static int clone(struct datapath *dp, struct sk_buff *skb, in clone() argument
1012 return clone_execute(dp, skb, key, 0, actions, rem, last, in clone()
1016 static void execute_hash(struct sk_buff *skb, struct sw_flow_key *key, in execute_hash() argument
1023 hash = skb_get_hash(skb); in execute_hash()
1031 static int execute_set_action(struct sk_buff *skb, in execute_set_action() argument
1039 skb_dst_drop(skb); in execute_set_action()
1041 skb_dst_set(skb, (struct dst_entry *)tun->tun_dst); in execute_set_action()
1051 static int execute_masked_set_action(struct sk_buff *skb, in execute_masked_set_action() argument
1059 OVS_SET_MASKED(skb->priority, nla_get_u32(a), in execute_masked_set_action()
1061 flow_key->phy.priority = skb->priority; in execute_masked_set_action()
1065 OVS_SET_MASKED(skb->mark, nla_get_u32(a), *get_mask(a, u32 *)); in execute_masked_set_action()
1066 flow_key->phy.skb_mark = skb->mark; in execute_masked_set_action()
1075 err = set_eth_addr(skb, flow_key, nla_data(a), in execute_masked_set_action()
1080 err = set_nsh(skb, flow_key, a); in execute_masked_set_action()
1084 err = set_ipv4(skb, flow_key, nla_data(a), in execute_masked_set_action()
1089 err = set_ipv6(skb, flow_key, nla_data(a), in execute_masked_set_action()
1094 err = set_tcp(skb, flow_key, nla_data(a), in execute_masked_set_action()
1099 err = set_udp(skb, flow_key, nla_data(a), in execute_masked_set_action()
1104 err = set_sctp(skb, flow_key, nla_data(a), in execute_masked_set_action()
1109 err = set_mpls(skb, flow_key, nla_data(a), get_mask(a, in execute_masked_set_action()
1126 static int execute_recirc(struct datapath *dp, struct sk_buff *skb, in execute_recirc() argument
1135 err = ovs_flow_key_update(skb, key); in execute_recirc()
1142 return clone_execute(dp, skb, key, recirc_id, NULL, 0, last, true); in execute_recirc()
1145 static int execute_check_pkt_len(struct datapath *dp, struct sk_buff *skb, in execute_check_pkt_len() argument
1160 if (skb->len <= arg->pkt_len) { in execute_check_pkt_len()
1175 return clone_execute(dp, skb, key, 0, nla_data(actions), in execute_check_pkt_len()
1180 static int do_execute_actions(struct datapath *dp, struct sk_buff *skb, in do_execute_actions() argument
1201 do_output(dp, skb, port, key); in do_execute_actions()
1207 clone = skb_clone(skb, GFP_ATOMIC); in do_execute_actions()
1210 OVS_CB(skb)->cutlen = 0; in do_execute_actions()
1217 if (skb->len > trunc->max_len) in do_execute_actions()
1218 OVS_CB(skb)->cutlen = skb->len - trunc->max_len; in do_execute_actions()
1223 output_userspace(dp, skb, key, a, attr, in do_execute_actions()
1224 len, OVS_CB(skb)->cutlen); in do_execute_actions()
1225 OVS_CB(skb)->cutlen = 0; in do_execute_actions()
1229 execute_hash(skb, key, a); in do_execute_actions()
1233 err = push_mpls(skb, key, nla_data(a)); in do_execute_actions()
1237 err = pop_mpls(skb, key, nla_get_be16(a)); in do_execute_actions()
1241 err = push_vlan(skb, key, nla_data(a)); in do_execute_actions()
1245 err = pop_vlan(skb, key); in do_execute_actions()
1251 err = execute_recirc(dp, skb, key, a, last); in do_execute_actions()
1263 err = execute_set_action(skb, key, nla_data(a)); in do_execute_actions()
1268 err = execute_masked_set_action(skb, key, nla_data(a)); in do_execute_actions()
1274 err = sample(dp, skb, key, a, last); in do_execute_actions()
1283 err = ovs_flow_key_update(skb, key); in do_execute_actions()
1288 err = ovs_ct_execute(ovs_dp_get_net(dp), skb, key, in do_execute_actions()
1297 err = ovs_ct_clear(skb, key); in do_execute_actions()
1301 err = push_eth(skb, key, nla_data(a)); in do_execute_actions()
1305 err = pop_eth(skb, key); in do_execute_actions()
1316 err = push_nsh(skb, key, nh); in do_execute_actions()
1321 err = pop_nsh(skb, key); in do_execute_actions()
1325 if (ovs_meter_execute(dp, skb, key, nla_get_u32(a))) { in do_execute_actions()
1326 consume_skb(skb); in do_execute_actions()
1334 err = clone(dp, skb, key, a, last); in do_execute_actions()
1344 err = execute_check_pkt_len(dp, skb, key, a, last); in do_execute_actions()
1353 kfree_skb(skb); in do_execute_actions()
1358 consume_skb(skb); in do_execute_actions()
1368 static int clone_execute(struct datapath *dp, struct sk_buff *skb, in clone_execute() argument
1376 skb = last ? skb : skb_clone(skb, GFP_ATOMIC); in clone_execute()
1377 if (!skb) { in clone_execute()
1397 err = do_execute_actions(dp, skb, clone, in clone_execute()
1404 ovs_dp_process_packet(skb, clone); in clone_execute()
1410 da = add_deferred_actions(skb, key, actions, len); in clone_execute()
1420 kfree_skb(skb); in clone_execute()
1446 struct sk_buff *skb = da->skb; in process_deferred_actions() local
1452 do_execute_actions(dp, skb, key, actions, actions_len); in process_deferred_actions()
1454 ovs_dp_process_packet(skb, key); in process_deferred_actions()
1462 int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb, in ovs_execute_actions() argument
1472 kfree_skb(skb); in ovs_execute_actions()
1477 OVS_CB(skb)->acts_origlen = acts->orig_len; in ovs_execute_actions()
1478 err = do_execute_actions(dp, skb, key, in ovs_execute_actions()