}if(type == ICMPV6_PKT_TOOBIG) {structdst_entry*dst=NULL;if(!ip6_sk_accept_pmtu(sk))gotoout;if(sock_owned_by_user(sk))gotoout;if((1<< sk->sk_state) & (DCCPF_LISTEN | DCCPF_CLOSED))gotoout; dst = inet6_csk_update_pmtu(sk, ntohl(info));if(!dst)gotoout;if(inet_csk(sk...
inet_csk(sk)->icsk_accept_queue.fastopenq.max_qlen) { fastopen_queue_tune(sk, backlog); tcp_fastopen_init_key_once(true); } err = inet_csk_listen_start(sk, backlog); if (err) goto out; } sk->sk_max_ack_backlog = backlog; err = 0; out: release_sock(sk); return err;...
当我们希望一个套接口能够接收到一个主机上所有网卡上收到的某个端口的数据的报文的时候,我们一般给bind传递的地址是 /* Address to accept any incoming messages. */ #define INADDR_ANY ((unsigned long int) 0x00000000) 这样就有一个问题,当某一个网卡真的受到了一个报文的时候,它将会怎么进行地址的匹配...
reqsk_queue_removed(&inet_csk(sk)->icsk_accept_queue, req); reqsk_put(req); } return unlinked; } EXPORT_SYMBOL(inet_csk_reqsk_queue_drop);void inet_csk_reqsk_queue_drop_and_put(struct sock *sk, struct request_sock *req)
&foc, TCP_SYNACK_FASTOPEN); /* Add the child socket directly into the accept queue */ inet_csk_reqsk_queue_add(sk, req, fastopen_sk); if (!inet_csk_reqsk_queue_add(sk, req, fastopen_sk)) { reqsk_fastopen_remove(fastopen_sk, req, false); bh_unlock_sock(fastope...
1. 前言 2. 流程图 2.1 Tcp/Ip 协议层 2.2 代码内部分层结构 3. inet_init源码分析 staticint__initinet_init(void) { structinet_protosw*q; structlist_head*r; intrc=-EINVAL; BUILD_BUG_ON(sizeof(structinet_skb_parm)>FIELD_SIZEOF(structsk_buff,cb)); ...
staticstruct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb){conststructdccp_hdr*dh=dccp_hdr(skb);conststructiphdr*iph=ip_hdr(skb);structsock*nsk;structrequest_sock**prev;/* Find possible connection requests. */structrequest_sock*req=inet_csk_search_req(sk, &prev,dh->dcc...
inet_csk(sk)->icsk_accept_queue.fastopenq.max_qlen) { fastopen_queue_tune(sk, backlog); tcp_fastopen_init_key_once(sock_net(sk)); } err = inet_csk_listen_start(sk); if (err) return err; tcp_call_bpf(sk, BPF_SOCK_OPS_TCP_LISTEN_CB, 0, NULL); } return 0; } /* * ...
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inet_csk(sk)->icsk_accept_queue.fastopenq.max_qlen) { fastopen_queue_tune(sk, backlog); tcp_fastopen_init_key_once(sock_net(sk)); } err = inet_csk_listen_start(sk, backlog); if (err) goto out; tcp_call_bpf(sk, BPF_SOCK_OPS_TCP_LISTEN_CB, 0, NULL); } err = 0; out...