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windows socket ipv6 SOCK_RAW

bind处一直报错WSAEADDRNOTAVAIL10049，不知道为什么？

WSAEADDRNOTAVAIL
10049

Cannot assign requested address.: The requested address is not valid in its context. This normally results from an attempt to bind to an address that is not valid for the local computer. This can also result from connect, sendto, WSAConnect, WSAJoinLeaf, or WSASendTo when the remote address or port is not valid for a remote computer (for example, address or port 0).

win10, vs2015

 1 #include <stdio.h>
 2 #include <winsock2.h>
 3 #include <ws2ipdef.h>
 4 
 5 #pragma comment(lib, "ws2_32.lib")
 6 
 7 #define BUF_SIZE 30
 8 
 9 int main()
10 {
11     int iResult = 0;
12     WSADATA wsaData;
13     SOCKET sock;
14     char message[BUF_SIZE];
15     int strlen;
16     int addrsize;
17 
18     SOCKADDR_IN6 addrto, addrfrom;
19 
20     iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
21 
22     sock = socket(AF_INET6, SOCK_RAW, 89);    /*需要管理员权限*/
23     if (sock == INVALID_SOCKET)
24         printf("sock err = %d
", WSAGetLastError());
25 
26     addrto.sin6_family = AF_INET6;
27     addrto.sin6_addr.u.Byte[0] = 0xfc; 
28     addrto.sin6_addr.u.Byte[1] = 0x00;
29     addrto.sin6_addr.u.Byte[2] = 0x00;
30     addrto.sin6_addr.u.Byte[3] = 0x00;
31     addrto.sin6_addr.u.Byte[4] = 0x00;
32     addrto.sin6_addr.u.Byte[5] = 0x00;
33     addrto.sin6_addr.u.Byte[6] = 0x0d;
34     addrto.sin6_addr.u.Byte[7] = 0x41;
35     addrto.sin6_addr.u.Byte[8] = 0x00;
36     addrto.sin6_addr.u.Byte[9] = 0x00;
37     addrto.sin6_addr.u.Byte[10] = 0x00;
38     addrto.sin6_addr.u.Byte[11] = 0x00;
39     addrto.sin6_addr.u.Byte[12] = 0x0d;
40     addrto.sin6_addr.u.Byte[13] = 0x41;
41     addrto.sin6_addr.u.Byte[14] = 0x00;
42     addrto.sin6_addr.u.Byte[15] = 0x02;
43     addrto.sin6_port = 89;
44 
45     iResult = bind(sock, (SOCKADDR *)&addrto, sizeof(SOCKADDR_IN6));
46     if (iResult == SOCKET_ERROR)
47         printf("bind err = %d
", WSAGetLastError());
48 
49     while (1)
50     {
51         addrsize = sizeof(addrfrom);
52         strlen = recvfrom(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrfrom, &addrsize);
53     }
54 
55 }

View Code

IPv4版本，需要保证本地连接已接通

 1 #define _WINSOCK_DEPRECATED_NO_WARNINGS
 2 #include <stdio.h>
 3 #include <winsock2.h>
 4 #include <ws2ipdef.h>
 5 #include <ws2tcpip.h>
 6 
 7 #pragma comment(lib, "ws2_32.lib")
 8 
 9 #define BUF_SIZE 30
10 #define _WINSOCK_DEPRECATED_NO_WARNINGS
11 
12 int main()
13 {
14     int iResult = 0;
15     WSADATA wsaData;
16     SOCKET sock;
17     char message[BUF_SIZE] = "send...";
18     int strlen;
19     int addrsize;
20 
21     SOCKADDR_IN addrto, addrfrom;
22 
23     iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
24 
25     sock = socket(AF_INET, SOCK_RAW, 89);    /*需要管理员权限*/
26     if (sock == INVALID_SOCKET)
27         printf("sock err = %d
", WSAGetLastError());
28 
29     addrfrom.sin_family = AF_INET;
30     addrfrom.sin_addr.S_un.S_addr = inet_addr("192.168.0.4");
31     addrfrom.sin_port = 89;
32 
33     addrto.sin_family = AF_INET;
34     addrto.sin_addr.S_un.S_addr = inet_addr("192.168.0.5");
35     addrto.sin_port = 89;
36 
37     iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom));
38     if (iResult == SOCKET_ERROR)
39         printf("bind err = %d
", WSAGetLastError());
40 
41     while (1)
42     {
43         addrsize = sizeof(addrto);
44         strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize);
45     }
46 
47 }

View Code

IPv6版本，2000::2可以通，addrfrom.sin6_scope_id = 0;地址范围设置是必须的，若为unicast地址可以设置为0。需要赋值，不然内存默认可能为cc。

 1 #define _WINSOCK_DEPRECATED_NO_WARNINGS
 2 #include <stdio.h>
 3 #include <winsock2.h>
 4 #include <ws2ipdef.h>
 5 #include <ws2tcpip.h>
 6 #include <wsipv6ok.h>
 7 
 8 #pragma comment(lib, "ws2_32.lib")
 9 
10 #define BUF_SIZE 30
11 #define _WINSOCK_DEPRECATED_NO_WARNINGS
12 
13 int main()
14 {
15     int iResult = 0;
16     WSADATA wsaData;
17     SOCKET sock;
18     char message[BUF_SIZE] = "send...";
19     int strlen;
20     int addrsize;
21     SOCKADDR_IN6 addrto, addrfrom;
22 
23     iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
24 
25     sock = socket(AF_INET6, SOCK_RAW, 89);    /*需要管理员权限*/
26     if (sock == INVALID_SOCKET)
27         printf("sock err = %d
", WSAGetLastError());
28 
29     addrfrom.sin6_family = AF_INET6;
30     iResult = inet_pton(AF_INET6, "2000::2", addrfrom.sin6_addr.u.Byte);
31     addrfrom.sin6_port = htons(89);
32     addrfrom.sin6_scope_id = 0;
33 
34     addrto.sin6_family = AF_INET6;
35     iResult = inet_pton(AF_INET6, "2000::1", addrto.sin6_addr.u.Byte);
36     addrto.sin6_port = htons(89);
37     addrto.sin6_scope_id = 0;
38 
39     iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom));
40     if (iResult == SOCKET_ERROR)
41         printf("bind err = %d
", WSAGetLastError());
42 
43     while (1)
44     {
45         addrsize = sizeof(addrto);
46         strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize);
47         printf("sendto err = %d
", WSAGetLastError());
48     }
49 
50 }

View Code

IPv6通，主要是scope_id

 1 #define _WINSOCK_DEPRECATED_NO_WARNINGS
 2 #include <stdio.h>
 3 #include <winsock2.h>
 4 #include <ws2ipdef.h>
 5 #include <ws2tcpip.h>
 6 #include <wsipv6ok.h>
 7 
 8 #pragma comment(lib, "ws2_32.lib")
 9 
10 #define BUF_SIZE 30
11 #define _WINSOCK_DEPRECATED_NO_WARNINGS
12 
13 int main()
14 {
15     int iResult = 0;
16     WSADATA wsaData;
17     SOCKET sock;
18     char message[BUF_SIZE] = "send...";
19     int strlen;
20     int addrsize;
21     SOCKADDR_IN6 addrto, addrfrom;
22 
23     iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
24 
25     sock = socket(AF_INET6, SOCK_RAW, 89);    /*需要管理员权限*/
26     if (sock == INVALID_SOCKET)
27         printf("sock err = %d
", WSAGetLastError());
28 
29     addrfrom.sin6_family = AF_INET6;
30     iResult = inet_pton(AF_INET6, "fc00::d41:0:0:d41:2", addrfrom.sin6_addr.u.Byte);
31     addrfrom.sin6_port = htons(89);
32     addrfrom.sin6_scope_id = 0;
33 
34     addrto.sin6_family = AF_INET6;
35     iResult = inet_pton(AF_INET6, "fc00::d41:0:0:d41:1", addrto.sin6_addr.u.Byte);
36     addrto.sin6_port = htons(89);
37     addrto.sin6_scope_id = 0;
38 
39     iResult = bind(sock, (SOCKADDR *)&addrfrom, sizeof(addrfrom));
40     if (iResult == SOCKET_ERROR)
41         printf("bind err = %d
", WSAGetLastError());
42 
43     while (1)
44     {
45         addrsize = sizeof(addrto);
46         strlen = sendto(sock, message, BUF_SIZE, 0, (SOCKADDR*)&addrto, addrsize);
47         printf("sendto err = %d
", WSAGetLastError());
48     }
49 
50 }

View Code

windows10，vs2015，控制台C程序，使用socket TCP作为服务器，接收，接收数据。

一开始wireshark上都能看到SYN包了，但就是一直阻塞在accept上，原因是防火墙屏蔽了2020端口，把防火墙关闭之后就可以了。

 1 #define _WINSOCK_DEPRECATED_NO_WARNINGS
 2 #include <stdio.h>
 3 #include <winsock2.h>
 4 #include <ws2ipdef.h>
 5 #include <ws2tcpip.h>
 6 #include <wsipv6ok.h>
 7 
 8 #pragma comment(lib, "ws2_32.lib")
 9 
10 #define BUF_SIZE 4096
11 #define _WINSOCK_DEPRECATED_NO_WARNINGS
12 
13 int main()
14 {
15     int iResult = 0;
16     WSADATA wsaData;
17     SOCKET sock;
18     char message[BUF_SIZE] = "send...";
19     int strlen;
20     int addrsize;
21     SOCKADDR_IN6 addrBOARD, addrPC;
22 
23     iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
24 
25     sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);    /*需要管理员权限*/
26     if (sock == INVALID_SOCKET)
27         printf("sock err = %d
", WSAGetLastError());
28 
29     addrPC.sin6_family = AF_INET6;
30     iResult = inet_pton(AF_INET6, "fc00:0:0:d401::1", addrPC.sin6_addr.u.Byte);
31     addrPC.sin6_port = htons(2020);
32     addrPC.sin6_scope_id = 0;
33 
34     iResult = bind(sock, (SOCKADDR *)&addrPC, sizeof(addrPC));
35     if (iResult == SOCKET_ERROR)
36         printf("bind err = %d
", WSAGetLastError());
37 
38     iResult = listen(sock, 5);
39     if (iResult == SOCKET_ERROR)
40         printf("listen err = %d
", WSAGetLastError());
41 
42     while (1)
43     {
44         SOCKET sockConnection;
45         
46         addrsize = sizeof(addrBOARD);
47         sockConnection = accept(sock, (SOCKADDR *)&addrBOARD, &addrsize);
48         if (sockConnection == INVALID_SOCKET)
49             printf("sock accept err = %d
", WSAGetLastError());
50 
51         recv(sockConnection, message, BUF_SIZE, 0);
52         
53     }
54 
55 }

View Code

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原文地址：https://www.cnblogs.com/yanhc/p/10306304.html