Lines Matching refs:skb
139 void *ipvlan_get_L3_hdr(struct ipvl_port *port, struct sk_buff *skb, int *type) in ipvlan_get_L3_hdr() argument
143 switch (skb->protocol) { in ipvlan_get_L3_hdr()
147 if (unlikely(!pskb_may_pull(skb, arp_hdr_len(port->dev)))) in ipvlan_get_L3_hdr()
150 arph = arp_hdr(skb); in ipvlan_get_L3_hdr()
159 if (unlikely(!pskb_may_pull(skb, sizeof(*ip4h)))) in ipvlan_get_L3_hdr()
162 ip4h = ip_hdr(skb); in ipvlan_get_L3_hdr()
163 pktlen = skb_ip_totlen(skb); in ipvlan_get_L3_hdr()
166 if (skb->len < pktlen || pktlen < (ip4h->ihl * 4)) in ipvlan_get_L3_hdr()
177 if (unlikely(!pskb_may_pull(skb, sizeof(*ip6h)))) in ipvlan_get_L3_hdr()
180 ip6h = ipv6_hdr(skb); in ipvlan_get_L3_hdr()
191 if (unlikely(!pskb_may_pull(skb, sizeof(*ip6h) + sizeof(*icmph)))) in ipvlan_get_L3_hdr()
194 ip6h = ipv6_hdr(skb); in ipvlan_get_L3_hdr()
199 if (unlikely(!pskb_may_pull(skb, sizeof(*ip6h) + sizeof(*icmph) in ipvlan_get_L3_hdr()
203 ip6h = ipv6_hdr(skb); in ipvlan_get_L3_hdr()
233 struct sk_buff *skb, *nskb; in ipvlan_process_multicast() local
247 while ((skb = __skb_dequeue(&list)) != NULL) { in ipvlan_process_multicast()
248 struct net_device *dev = skb->dev; in ipvlan_process_multicast()
251 ethh = eth_hdr(skb); in ipvlan_process_multicast()
252 tx_pkt = IPVL_SKB_CB(skb)->tx_pkt; in ipvlan_process_multicast()
262 if (tx_pkt && (ipvlan->dev == skb->dev)) in ipvlan_process_multicast()
269 len = skb->len + ETH_HLEN; in ipvlan_process_multicast()
270 nskb = skb_clone(skb, GFP_ATOMIC); in ipvlan_process_multicast()
288 skb->dev = port->dev; in ipvlan_process_multicast()
289 skb->pkt_type = pkt_type; in ipvlan_process_multicast()
290 dev_queue_xmit(skb); in ipvlan_process_multicast()
293 consume_skb(skb); in ipvlan_process_multicast()
295 kfree_skb(skb); in ipvlan_process_multicast()
302 static void ipvlan_skb_crossing_ns(struct sk_buff *skb, struct net_device *dev) in ipvlan_skb_crossing_ns() argument
307 xnet = !net_eq(dev_net(skb->dev), dev_net(dev)); in ipvlan_skb_crossing_ns()
309 skb_scrub_packet(skb, xnet); in ipvlan_skb_crossing_ns()
311 skb->dev = dev; in ipvlan_skb_crossing_ns()
322 struct sk_buff *skb = *pskb; in ipvlan_rcv_frame() local
324 len = skb->len + ETH_HLEN; in ipvlan_rcv_frame()
330 kfree_skb(skb); in ipvlan_rcv_frame()
334 skb = skb_share_check(skb, GFP_ATOMIC); in ipvlan_rcv_frame()
335 if (!skb) in ipvlan_rcv_frame()
338 *pskb = skb; in ipvlan_rcv_frame()
342 skb->pkt_type = PACKET_HOST; in ipvlan_rcv_frame()
343 if (dev_forward_skb(ipvlan->dev, skb) == NET_RX_SUCCESS) in ipvlan_rcv_frame()
346 skb->dev = dev; in ipvlan_rcv_frame()
417 static noinline_for_stack int ipvlan_process_v4_outbound(struct sk_buff *skb) in ipvlan_process_v4_outbound() argument
419 struct net_device *dev = skb->dev; in ipvlan_process_v4_outbound()
427 .flowi4_mark = skb->mark, in ipvlan_process_v4_outbound()
430 if (!pskb_network_may_pull(skb, sizeof(struct iphdr))) in ipvlan_process_v4_outbound()
433 ip4h = ip_hdr(skb); in ipvlan_process_v4_outbound()
446 skb_dst_set(skb, &rt->dst); in ipvlan_process_v4_outbound()
448 memset(IPCB(skb), 0, sizeof(*IPCB(skb))); in ipvlan_process_v4_outbound()
450 err = ip_local_out(net, NULL, skb); in ipvlan_process_v4_outbound()
458 kfree_skb(skb); in ipvlan_process_v4_outbound()
466 ipvlan_route_v6_outbound(struct net_device *dev, struct sk_buff *skb) in ipvlan_route_v6_outbound() argument
468 const struct ipv6hdr *ip6h = ipv6_hdr(skb); in ipvlan_route_v6_outbound()
475 .flowi6_mark = skb->mark, in ipvlan_route_v6_outbound()
487 skb_dst_set(skb, dst); in ipvlan_route_v6_outbound()
491 static int ipvlan_process_v6_outbound(struct sk_buff *skb) in ipvlan_process_v6_outbound() argument
493 struct net_device *dev = skb->dev; in ipvlan_process_v6_outbound()
496 if (!pskb_network_may_pull(skb, sizeof(struct ipv6hdr))) { in ipvlan_process_v6_outbound()
498 kfree_skb(skb); in ipvlan_process_v6_outbound()
502 err = ipvlan_route_v6_outbound(dev, skb); in ipvlan_process_v6_outbound()
505 kfree_skb(skb); in ipvlan_process_v6_outbound()
509 memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); in ipvlan_process_v6_outbound()
511 err = ip6_local_out(dev_net(dev), NULL, skb); in ipvlan_process_v6_outbound()
519 static int ipvlan_process_v6_outbound(struct sk_buff *skb) in ipvlan_process_v6_outbound() argument
525 static int ipvlan_process_outbound(struct sk_buff *skb) in ipvlan_process_outbound() argument
533 if (skb_mac_header_was_set(skb)) { in ipvlan_process_outbound()
536 struct ethhdr *ethh = eth_hdr(skb); in ipvlan_process_outbound()
541 ntohs(skb->protocol)); in ipvlan_process_outbound()
542 kfree_skb(skb); in ipvlan_process_outbound()
546 skb_pull(skb, sizeof(*ethh)); in ipvlan_process_outbound()
547 skb->mac_header = (typeof(skb->mac_header))~0U; in ipvlan_process_outbound()
548 skb_reset_network_header(skb); in ipvlan_process_outbound()
551 if (skb->protocol == htons(ETH_P_IPV6)) in ipvlan_process_outbound()
552 ret = ipvlan_process_v6_outbound(skb); in ipvlan_process_outbound()
553 else if (skb->protocol == htons(ETH_P_IP)) in ipvlan_process_outbound()
554 ret = ipvlan_process_v4_outbound(skb); in ipvlan_process_outbound()
557 ntohs(skb->protocol)); in ipvlan_process_outbound()
558 kfree_skb(skb); in ipvlan_process_outbound()
565 struct sk_buff *skb, bool tx_pkt) in ipvlan_multicast_enqueue() argument
567 if (skb->protocol == htons(ETH_P_PAUSE)) { in ipvlan_multicast_enqueue()
568 kfree_skb(skb); in ipvlan_multicast_enqueue()
577 IPVL_SKB_CB(skb)->tx_pkt = tx_pkt; in ipvlan_multicast_enqueue()
581 dev_hold(skb->dev); in ipvlan_multicast_enqueue()
582 __skb_queue_tail(&port->backlog, skb); in ipvlan_multicast_enqueue()
587 dev_core_stats_rx_dropped_inc(skb->dev); in ipvlan_multicast_enqueue()
588 kfree_skb(skb); in ipvlan_multicast_enqueue()
592 static int ipvlan_xmit_mode_l3(struct sk_buff *skb, struct net_device *dev) in ipvlan_xmit_mode_l3() argument
599 lyr3h = ipvlan_get_L3_hdr(ipvlan->port, skb, &addr_type); in ipvlan_xmit_mode_l3()
607 consume_skb(skb); in ipvlan_xmit_mode_l3()
610 ipvlan_rcv_frame(addr, &skb, true); in ipvlan_xmit_mode_l3()
615 ipvlan_skb_crossing_ns(skb, ipvlan->phy_dev); in ipvlan_xmit_mode_l3()
616 return ipvlan_process_outbound(skb); in ipvlan_xmit_mode_l3()
619 static int ipvlan_xmit_mode_l2(struct sk_buff *skb, struct net_device *dev) in ipvlan_xmit_mode_l2() argument
622 struct ethhdr *eth = skb_eth_hdr(skb); in ipvlan_xmit_mode_l2()
629 lyr3h = ipvlan_get_L3_hdr(ipvlan->port, skb, &addr_type); in ipvlan_xmit_mode_l2()
634 consume_skb(skb); in ipvlan_xmit_mode_l2()
637 ipvlan_rcv_frame(addr, &skb, true); in ipvlan_xmit_mode_l2()
641 skb = skb_share_check(skb, GFP_ATOMIC); in ipvlan_xmit_mode_l2()
642 if (!skb) in ipvlan_xmit_mode_l2()
650 dev_forward_skb(ipvlan->phy_dev, skb); in ipvlan_xmit_mode_l2()
654 skb_reset_mac_header(skb); in ipvlan_xmit_mode_l2()
655 ipvlan_skb_crossing_ns(skb, NULL); in ipvlan_xmit_mode_l2()
656 ipvlan_multicast_enqueue(ipvlan->port, skb, true); in ipvlan_xmit_mode_l2()
660 skb->dev = ipvlan->phy_dev; in ipvlan_xmit_mode_l2()
661 return dev_queue_xmit(skb); in ipvlan_xmit_mode_l2()
664 int ipvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev) in ipvlan_queue_xmit() argument
672 if (unlikely(!pskb_may_pull(skb, sizeof(struct ethhdr)))) in ipvlan_queue_xmit()
677 return ipvlan_xmit_mode_l2(skb, dev); in ipvlan_queue_xmit()
682 return ipvlan_xmit_mode_l3(skb, dev); in ipvlan_queue_xmit()
688 kfree_skb(skb); in ipvlan_queue_xmit()
692 static bool ipvlan_external_frame(struct sk_buff *skb, struct ipvl_port *port) in ipvlan_external_frame() argument
694 struct ethhdr *eth = eth_hdr(skb); in ipvlan_external_frame()
699 if (ether_addr_equal(eth->h_source, skb->dev->dev_addr)) { in ipvlan_external_frame()
700 lyr3h = ipvlan_get_L3_hdr(port, skb, &addr_type); in ipvlan_external_frame()
718 struct sk_buff *skb = *pskb; in ipvlan_handle_mode_l3() local
721 lyr3h = ipvlan_get_L3_hdr(port, skb, &addr_type); in ipvlan_handle_mode_l3()
736 struct sk_buff *skb = *pskb; in ipvlan_handle_mode_l2() local
737 struct ethhdr *eth = eth_hdr(skb); in ipvlan_handle_mode_l2()
741 if (ipvlan_external_frame(skb, port)) { in ipvlan_handle_mode_l2()
742 struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC); in ipvlan_handle_mode_l2()
765 struct sk_buff *skb = *pskb; in ipvlan_handle_frame() local
766 struct ipvl_port *port = ipvlan_port_get_rcu(skb->dev); in ipvlan_handle_frame()
784 kfree_skb(skb); in ipvlan_handle_frame()