struct sock有一个struct sock_common成员,因为struct inet_timewait_sock也要用到它,所以把它单独归到一个结构体中,其定义如下: struct sock_common { unsignedshort skc_family; volatile unsignedchar skc_state; unsignedchar skc_reuse; int skc_bound_dev_if; struct hlist_node skc_node; struct hlist_no...
struct sock有一个struct sock_common成员,因为struct inet_timewait_sock也要用到它,所以把它单独归到一个结构体中,其定义如下: struct sock_common { unsigned short skc_family; volatile unsigned char skc_state; unsigned char skc_reuse; int skc_bound_dev_if; struct hlist_node skc_node; struct hlis...
struct sock有一个struct sock_common成员,因为struct inet_timewait_sock也要用到它,所以把它单独归到一个结构体中,其定义如下: C代码 struct sock_common { unsigned short skc_family; volatile unsigned char skc_state; unsigned char skc_reuse; int skc_bound_dev_if; struct hlist_node skc_node; stru...
struct sock有一个struct sock_common成员,因为struct inet_timewait_sock也要用到它,所以把它单独归到一个结构体中,其定义如下: struct sock_common { unsigned short skc_family; volatile unsigned char skc_state; unsigned char skc_reuse; int skc_bound_dev_if; struct hlist_node skc_node; struct hlis...
struct sock有一个struct sock_common成员,因为struct inet_timewait_sock也要用到它,所以把它单独归到一个结构体中,其定义如下: C代码 1.struct sock_common { 2.unsignedshortskc_family; 3.volatile unsignedcharskc_state; 4.unsignedcharskc_reuse; 5.intskc_bound_dev_if; 6.struct hlist_node skc_nod...
int sockfd;struct sockaddr_in my_addr;sockfd=socket(AF_INET, SOCK_STREAM,0);my_addr.sin_family=AF_INET;/* 主机字节序 */ my_addr.sin_port=htons(MYPORT);/* short, 网络字节序 */ my_addr.sin_addr.s_addr=inet_addr("192.168.0.1");bzero(&(my_addr.sin_zero),8);/* zero the rest...
编写服务器程序时,在Linux中需要调用Listen系统调用,如下所示,Listen系统调用的主要功能就是根据传入的backlog参数创建连接队列,并将套接字的状态迁移至LISTEN状态,最后将监听sock注册到TCP全局的监听套接字哈希表。 intlisten(intsockfd,intbacklog); Listen系统调用-函数执行流程 ...
int sock_fd; struct sockaddr_in my_addr; sock_fd = socket(AF_INET, SOCK_STREAM, 0); my_addr.sin_family = AF_INET; // my_addr.sin_port = htons(MyPort); // my_addr.sin_addr.s_addr = inet_addr("127.0.0.1"); bzero(&(my_addr.sin_zero), 8); // zero the rest of the ...
structsock_common __sk_common; /* skip some codes */ intsk_rcvbuf; /* skip some codes */ intsk_sndbuf; structsk_buff_head sk_receive_queue; structsk_buff_head sk_write_queue; }; 其中,sk_rcvbuf和sk_sendbuf分别是接收和发送缓存的字节数。
sk = bpf_sk_fullsock(sk); if(!sk) return-1; active = (int*)bpf_per_cpu_ptr(&bpf_prog_active, bpf_get_smp_processor_id); if(active) active_res = *active; sk_state_res = bpf_kfunc_call_test3((struct sock *)sk)->__sk_common.skc_state; ...