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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
#include <stdio.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <curses.h>
#define MSGLENGTH 1024
#define PORT 7979
#define CACERT "./private/ca.crt"
#define SVRCERTF "./certs/server.crt"
#define SVRKEYF "./private/server.key"
#define ADDRESS “127.0.0.1”
int main ()
{
int sock;
SSL_METHOD *meth;
SSL_CTX *ctx;
SSL *ssl;
SSL_library_init();
OpenSSL_add_ssl_algorithms ();
SSL_load_error_strings ();
meth = (SSL_METHOD *) TLSv1_server_method ();
ctx = SSL_CTX_new (meth);
if (NULL == ctx)
exit (1);
SSL_CTX_set_verify (ctx, SSL_VERIFY_PEER, NULL);
SSL_CTX_load_verify_locations (ctx, CACERT, NULL);
if (0 == SSL_CTX_use_certificate_file (ctx, SVRCERTF, SSL_FILETYPE_PEM))
{
ERR_print_errors_fp (stderr);
exit (1);
}
if (0 == SSL_CTX_use_PrivateKey_file (ctx, SVRKEYF, SSL_FILETYPE_PEM))
{
ERR_print_errors_fp (stderr);
exit (1);
}
if (!SSL_CTX_check_private_key (ctx))
{
printf ("Private key does not match the certificate public key\n");
exit (1);
}
SSL_CTX_set_cipher_list (ctx, "RC4-MD5");
SSL_CTX_set_mode (ctx, SSL_MODE_AUTO_RETRY);
printf ("Begin tcp socket...\n");
sock = socket (AF_INET, SOCK_STREAM, 0);
if (sock == -1)
{
printf ("SOCKET error! \n");
return 0;
}
struct sockaddr_in addr;
memset (&addr, '\0', sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = htons (PORT);
addr.sin_addr.s_addr = inet_addr(ADDRESS);
int nResult = bind (sock, (struct sockaddr *) &addr, sizeof (addr));
if (nResult == -1)
{
printf ("bind socket error\n");
return 0;
}
printf ("server start successfully,port:%d\nwaiting for connections\n",
PORT);
struct sockaddr_in sa_cli;
int err = listen (sock, 5);
if (-1 == err)
exit (1);
int client_len = sizeof (sa_cli);
int ss = accept (sock, (struct sockaddr *) &sa_cli, &client_len);
if (ss == -1)
{
exit (1);
}
close (sock);
printf ("Connection from %d, port %d\n", sa_cli.sin_addr.s_addr,
sa_cli.sin_port);
ssl = SSL_new (ctx);
if (NULL == ssl)
exit (1);
if (0 == SSL_set_fd (ssl, ss))
{
printf ("Attach to Line fail!\n");
exit (1);
}
int k = SSL_accept (ssl);
if (0 == k)
{
printf ("%d/n", k);
printf ("SSL connect fail!\n");
exit (1);
}
X509 *client_cert;
client_cert = SSL_get_peer_certificate (ssl);
printf ("find a customer to try to connect\n");
if (client_cert != NULL)
{
printf ("Client certificate:\n");
char *str =
X509_NAME_oneline (X509_get_subject_name (client_cert), 0, 0);
if (NULL == str)
{
printf ("auth error!\n");
exit (1);
}
printf ("subject: %s\n", str);
str = X509_NAME_oneline (X509_get_issuer_name (client_cert), 0, 0);
if (NULL == str)
{
printf ("certificate name is null\n");
exit (1);
}
printf ("issuer: %s\n", str);
printf ("connect successfully\n");
X509_free (client_cert);
OPENSSL_free (str);
}
else
{
printf ("can not find the customer's certificate\n");
exit (1);
}
char buf[MSGLENGTH];
SSL_write (ssl, "Server is connect to you!\n",
strlen ("Server is connect to you!\n"));
printf ("Listen to the client: \n");
while (1)
{
err = SSL_read (ssl, buf, sizeof (buf));
buf[err] = '\0';
printf ("%s\n", buf);
}
SSL_shutdown (ssl);
SSL_free (ssl);
SSL_CTX_free (ctx);
getch ();
return 0;
}
|
