1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <netdb.h>
#include "../../net/lib/ksft.h"
int main(int argc, char *argv[])
{
struct sockaddr_storage address;
struct addrinfo *result;
struct addrinfo hints;
unsigned int napi_id;
socklen_t addr_len;
socklen_t optlen;
char buf[1024];
int opt = 1;
int family;
int server;
int client;
int ret;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
ret = getaddrinfo(argv[1], argv[2], &hints, &result);
if (ret != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ret));
return 1;
}
family = result->ai_family;
addr_len = result->ai_addrlen;
server = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (server < 0) {
perror("socket creation failed");
freeaddrinfo(result);
if (errno == EAFNOSUPPORT)
return -1;
return 1;
}
if (setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) {
perror("setsockopt");
freeaddrinfo(result);
return 1;
}
memcpy(&address, result->ai_addr, result->ai_addrlen);
freeaddrinfo(result);
if (bind(server, (struct sockaddr *)&address, addr_len) < 0) {
perror("bind failed");
return 1;
}
if (listen(server, 1) < 0) {
perror("listen");
return 1;
}
ksft_ready();
client = accept(server, NULL, 0);
if (client < 0) {
perror("accept");
return 1;
}
optlen = sizeof(napi_id);
ret = getsockopt(client, SOL_SOCKET, SO_INCOMING_NAPI_ID, &napi_id,
&optlen);
if (ret != 0) {
perror("getsockopt");
return 1;
}
read(client, buf, 1024);
ksft_wait();
if (napi_id == 0) {
fprintf(stderr, "napi ID is 0\n");
return 1;
}
close(client);
close(server);
return 0;
}
|
