Lines Matching full:skb

18 	int (*xmit)(struct sk_buff *skb);
26 static int sch_frag_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)
31 	if (skb_cow_head(skb, data->l2_len) < 0) {
32 		kfree_skb(skb);
36 	__skb_dst_copy(skb, data->dst);
37 	*qdisc_skb_cb(skb) = data->cb;
38 	skb->inner_protocol = data->inner_protocol;
40 		__vlan_hwaccel_put_tag(skb, data->vlan_proto,
43 		__vlan_hwaccel_clear_tag(skb);
46 	skb_push(skb, data->l2_len);
47 	memcpy(skb->data, &data->l2_data, data->l2_len);
48 	skb_postpush_rcsum(skb, skb->data, data->l2_len);
49 	skb_reset_mac_header(skb);
51 	return data->xmit(skb);
54 static void sch_frag_prepare_frag(struct sk_buff *skb,
55 				  int (*xmit)(struct sk_buff *skb))
57 	unsigned int hlen = skb_network_offset(skb);
61 	data->dst = skb->_skb_refdst;
62 	data->cb = *qdisc_skb_cb(skb);
64 	data->inner_protocol = skb->inner_protocol;
65 	if (skb_vlan_tag_present(skb))
66 		data->vlan_tci = skb_vlan_tag_get(skb) | VLAN_CFI_MASK;
69 	data->vlan_proto = skb->vlan_proto;
71 	memcpy(&data->l2_data, skb->data, hlen);
73 	memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
74 	skb_pull(skb, hlen);
88 static int sch_fragment(struct net *net, struct sk_buff *skb,
89 			u16 mru, int (*xmit)(struct sk_buff *skb))
93 	if (skb_network_offset(skb) > VLAN_ETH_HLEN) {
98 	if (skb_protocol(skb, true) == htons(ETH_P_IP)) {
103 		sch_frag_prepare_frag(skb, xmit);
106 		sch_frag_rt.dst.dev = skb->dev;
108 		orig_dst = skb->_skb_refdst;
109 		skb_dst_set_noref(skb, &sch_frag_rt.dst);
110 		IPCB(skb)->frag_max_size = mru;
112 		ret = ip_do_fragment(net, skb->sk, skb, sch_frag_xmit);
115 	} else if (skb_protocol(skb, true) == htons(ETH_P_IPV6)) {
120 		sch_frag_prepare_frag(skb, xmit);
124 		sch_frag_rt.dst.dev = skb->dev;
126 		orig_dst = skb->_skb_refdst;
127 		skb_dst_set_noref(skb, &sch_frag_rt.dst);
128 		IP6CB(skb)->frag_max_size = mru;
130 		ret = ipv6_stub->ipv6_fragment(net, skb->sk, skb,
136 				     netdev_name(skb->dev),
137 				     ntohs(skb_protocol(skb, true)), mru,
138 				     skb->dev->mtu);
144 	kfree_skb(skb);
148 int sch_frag_xmit_hook(struct sk_buff *skb, int (*xmit)(struct sk_buff *skb))
150 	u16 mru = tc_skb_cb(skb)->mru;
153 	if (mru && skb->len > mru + skb->dev->hard_header_len)
154 		err = sch_fragment(dev_net(skb->dev), skb, mru, xmit);
156 		err = xmit(skb);