1 // (C) Copyright 2015 Intel Corporation
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining a copy
4 // of this software and associated documentation files (the "Software"), to deal
5 // in the Software without restriction, including without limitation the rights
6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 // copies of the Software, and to permit persons to whom the Software is
8 // furnished to do so, subject to the following conditions:
9 //
10 // The above copyright notice and this permission notice shall be included in
11 // all copies or substantial portions of the Software.
12 //
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 // THE SOFTWARE.
20 #include <stdio.h>
21 #include <sys/socket.h>
22 #include <sys/types.h>
23 #include <errno.h>
24 #include <netinet/in.h>
25 #include <unistd.h>
26 #include <netdb.h>
27 #include <string.h>
28 #include <sys/xattr.h>
29
main(int argc,char * argv[])30 int main(int argc, char* argv[])
31 {
32
33 int sock;
34 char message[255] = "hello";
35 struct sockaddr_in server_addr;
36 char* label_in;
37 char* label_out;
38 char* attr_out = "security.SMACK64IPOUT";
39 char* attr_in = "security.SMACK64IPIN";
40 char out[256];
41 int port;
42
43 struct timeval timeout;
44 timeout.tv_sec = 15;
45 timeout.tv_usec = 0;
46
47 struct hostent* host = gethostbyname("localhost");
48
49 if (argc != 4)
50 {
51 perror("Client: Arguments missing, please provide socket labels");
52 return 2;
53 }
54
55 port = atoi(argv[1]);
56 label_in = argv[2];
57 label_out = argv[3];
58
59 if((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
60 {
61 perror("Client: Socket failure");
62 return 2;
63 }
64
65
66 if(fsetxattr(sock, attr_out, label_out, strlen(label_out), 0) < 0)
67 {
68 perror("Client: Unable to set attribute SMACK64IPOUT");
69 return 2;
70 }
71
72 if(fsetxattr(sock, attr_in, label_in, strlen(label_in), 0) < 0)
73 {
74 perror("Client: Unable to set attribute SMACK64IPIN");
75 return 2;
76 }
77
78 server_addr.sin_family = AF_INET;
79 server_addr.sin_port = htons(port);
80 bcopy((char*) host->h_addr, (char*) &server_addr.sin_addr.s_addr,host->h_length);
81 bzero(&(server_addr.sin_zero),8);
82
83 if(setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout)) < 0)
84 {
85 perror("Client: Set timeout failed\n");
86 return 2;
87 }
88
89 if (connect(sock, (struct sockaddr *)&server_addr,sizeof(struct sockaddr)) == -1)
90 {
91 perror("Client: Connection failure");
92 close(sock);
93 return 1;
94 }
95
96
97 if(write(sock, message, strlen(message)) < 0)
98 {
99 perror("Client: Error sending data\n");
100 close(sock);
101 return 1;
102 }
103 close(sock);
104 return 0;
105 }
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