函数名称:skb_dst - returns skb dst_entry*@skb: buffer* Returns skb dst_entry, regardless of reference taken or not. 函数原型:static inline struct dst_entry *skb_dst(const struct sk_buff *skb) 返回类型:struct dst_entry 参数: 类型参数名称 const struct sk_buff * skb 925...
iph->id= htons(inet->id++); iph->ttl= ip_select_ttl(inet, &rt->u.dst); iph->protocol= sk->sk_protocol; /* IPPROTO_UDP in this case */ iph->saddr= rt->rt_src; iph->daddr= rt->rt_dst; ip_send_check(iph); skb->priority= sk->sk_priority; skb->dst= dst_clone(&rt-...
} mac; struct dst_entry *dst; struct sec_path *sp; char cb[40]; unsigned intlen, data_len, mac_len, csum; __u32 priority; __u8 local_df:1, cloned:1, ip_summed:2, nohdr:1, nfctinfo:3; __u8 pkt_type:3, fclone:2; __be16 protocol; void (*destructor)(struct sk_buff *...
(OK) 第五章 传输层(tcp)到网络层(ip)--基于Linux3.10 - dst_neigh_output() - neigh_resolve_output() 真正的离开了IP层 ;queue_xmit(skb, &inet->cork.fl); } icsk_af_ops->queue_xmit的两个参数,structsk_buff*skb已经在第二章叙述... bethefirsttwo membersofinet_sock */ struct sock sk...
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iph->daddr = rt->rt_dst; ip_send_check(iph); skb->priority = sk->sk_priority; skb->dst = dst_clone(&rt->u.dst); This is what a new SKB looks like after we push the IPv4 header to the front of the SKB. Just as above for UDP, skb_push() decrements 'skb->data' and ...
When we try to transmit an skb with md_dst attached through wireguard we hit a null pointer dereference in wg_xmit() due to the use of dst_mtu() which calls into dst_blackhole_mtu() which in turn tries to dereference dst->dev. Since wireguard doesn't use md_dsts we should use skb...
{unsignedchar*raw;}mac;structdst_entry*dst;structsec_path*sp;charcb[40];unsignedintlen,data_len,mac_len,csum;__u32 priority;__u8 local_df:1,cloned:1,ip_summed:2,nohdr:1,nfctinfo:3;__u8 pkt_type:3,fclone:2;__be16 protocol;void(*destructor)(structsk_buff*skb);/* These ...
return skb_dst(skb)->input(skb); } }}} This crash could not be reproduced again when the patch 050-backport_netfilter_rtcache.patch was removed. -- Ticket URL: <https://dev.openwrt.org/ticket/22283> OpenWrt <http://openwrt.org> ...
> !(skb_dst(skb)->dev->features & NETIF_F_SCTP_CRC))) { > sctph->dest = cp->dport; > - if (!skb_is_gso(skb) || !skb_is_gso_sctp(skb)) > + if (!skb_is_gso(skb)) > sctp_nat_csum(skb, sctph, sctphoff);