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Diffstat (limited to 'src/transport/gnunet-transport-wlan-sender.c')
-rw-r--r--src/transport/gnunet-transport-wlan-sender.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/src/transport/gnunet-transport-wlan-sender.c b/src/transport/gnunet-transport-wlan-sender.c
deleted file mode 100644
index 5256ec7be..000000000
--- a/src/transport/gnunet-transport-wlan-sender.c
+++ /dev/null
@@ -1,251 +0,0 @@
1/*
2 This file is part of GNUnet
3 Copyright (C) 2011 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21/**
22 * @file transport/gnunet-transport-wlan-sender.c
23 * @brief program to send via WLAN as much as possible (to test physical/theoretical throughput)
24 * @author David Brodski
25 */
26#include "platform.h"
27#include "plugin_transport_wlan.h"
28#include "gnunet_protocols.h"
29
30#define WLAN_MTU 1500
31
32/**
33 * LLC fields for better compatibility
34 */
35#define WLAN_LLC_DSAP_FIELD 0x1f
36#define WLAN_LLC_SSAP_FIELD 0x1f
37
38#define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */
39
40#define IEEE80211_FC0_VERSION_MASK 0x03
41#define IEEE80211_FC0_VERSION_SHIFT 0
42#define IEEE80211_FC0_VERSION_0 0x00
43#define IEEE80211_FC0_TYPE_MASK 0x0c
44#define IEEE80211_FC0_TYPE_SHIFT 2
45#define IEEE80211_FC0_TYPE_MGT 0x00
46#define IEEE80211_FC0_TYPE_CTL 0x04
47#define IEEE80211_FC0_TYPE_DATA 0x08
48
49
50/**
51 * function to fill the radiotap header
52 * @param header pointer to the radiotap header
53 * @param size total message size
54 * @return GNUNET_YES at success
55 */
56static int
57getRadiotapHeader (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *header,
58 uint16_t size)
59{
60 header->header.size = htons (size);
61 header->header.type = htons (GNUNET_MESSAGE_TYPE_WLAN_DATA_TO_HELPER);
62 header->rate = 255;
63 header->tx_power = 0;
64 header->antenna = 0;
65 return GNUNET_YES;
66}
67
68
69/**
70 * function to generate the wlan hardware header for one packet
71 * @param Header address to write the header to
72 * @param to_mac_addr pointer to the address of the recipient
73 * @param mac pointer to the mac address to send from (normally overwritten over by helper)
74 * @param size size of the whole packet, needed to calculate the time to send the packet
75 * @return GNUNET_YES if there was no error
76 */
77static int
78getWlanHeader (struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame *Header,
79 const struct GNUNET_TRANSPORT_WLAN_MacAddress *to_mac_addr,
80 const struct GNUNET_TRANSPORT_WLAN_MacAddress *mac,
81 unsigned int size)
82{
83 const int rate = 11000000;
84
85 Header->frame_control = htons (IEEE80211_FC0_TYPE_DATA);
86 Header->addr3 = mac_bssid_gnunet;
87 Header->addr2 = *mac;
88 Header->addr1 = *to_mac_addr;
89 Header->duration = GNUNET_htole16 ((size * 1000000) / rate + 290);
90 Header->llc[0] = WLAN_LLC_DSAP_FIELD;
91 Header->llc[1] = WLAN_LLC_SSAP_FIELD;
92 Header->llc[2] = 0; // FIXME
93 Header->llc[3] = 0; // FIXME
94 return GNUNET_YES;
95}
96
97
98int
99main (int argc, char *argv[])
100{
101 char msg_buf[WLAN_MTU];
102 struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *radiotap;
103 unsigned int temp[6];
104 struct GNUNET_TRANSPORT_WLAN_MacAddress inmac;
105 struct GNUNET_TRANSPORT_WLAN_MacAddress outmac;
106 struct GNUNET_TRANSPORT_WLAN_HelperControlMessage hcm;
107 unsigned long long count;
108 double bytes_per_s;
109 time_t start;
110 time_t akt;
111 int i;
112 ssize_t ret;
113 pid_t pid;
114 int commpipe[2]; /* This holds the fd for the input & output of the pipe */
115 int macpipe[2]; /* This holds the fd for the input & output of the pipe */
116
117 if (4 != argc)
118 {
119 fprintf (
120 stderr,
121 "This program must be started with the interface and the targets and source mac as argument.\n");
122 fprintf (stderr,
123 "Usage: interface-name mac-DST mac-SRC\n"
124 "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
125 return 1;
126 }
127 if (6 != sscanf (argv[2],
128 "%x-%x-%x-%x-%x-%x",
129 &temp[0],
130 &temp[1],
131 &temp[2],
132 &temp[3],
133 &temp[4],
134 &temp[5]))
135 {
136 fprintf (stderr,
137 "Usage: interface-name mac-DST mac-SRC\n"
138 "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
139 return 1;
140 }
141 for (i = 0; i < 6; i++)
142 outmac.mac[i] = temp[i];
143 if (6 != sscanf (argv[3],
144 "%x-%x-%x-%x-%x-%x",
145 &temp[0],
146 &temp[1],
147 &temp[2],
148 &temp[3],
149 &temp[4],
150 &temp[5]))
151 {
152 fprintf (stderr,
153 "Usage: interface-name mac-DST mac-SRC\n"
154 "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
155 return 1;
156 }
157 for (i = 0; i < 6; i++)
158 inmac.mac[i] = temp[i];
159
160
161 /* Setup communication pipeline first */
162 if (pipe (commpipe))
163 {
164 fprintf (stderr, "Failed to create pipe: %s\n", strerror (errno));
165 exit (1);
166 }
167 if (pipe (macpipe))
168 {
169 fprintf (stderr, "Failed to create pipe: %s\n", strerror (errno));
170 exit (1);
171 }
172
173 /* Attempt to fork and check for errors */
174 if ((pid = fork ()) == -1)
175 {
176 fprintf (stderr, "Failed to fork: %s\n", strerror (errno));
177 exit (1);
178 }
179 memset (msg_buf, 0x42, sizeof(msg_buf));
180 if (pid)
181 {
182 /* A positive (non-negative) PID indicates the parent process */
183 if (0 != close (commpipe[0])) /* Close unused side of pipe (in side) */
184 fprintf (stderr, "Failed to close fd: %s\n", strerror (errno));
185 setvbuf (stdout,
186 (char *) NULL,
187 _IONBF,
188 0); /* Set non-buffered output on stdout */
189
190 if (0 != close (macpipe[1]))
191 fprintf (stderr, "Failed to close fd: %s\n", strerror (errno));
192 if (sizeof(hcm) != read (macpipe[0], &hcm, sizeof(hcm)))
193 fprintf (stderr, "Failed to read hcm...\n");
194 fprintf (stderr,
195 "Got MAC %.2X:%.2X:%.2X:%.2X:%.2X:%.2X\n",
196 hcm.mac.mac[0],
197 hcm.mac.mac[1],
198 hcm.mac.mac[2],
199 hcm.mac.mac[3],
200 hcm.mac.mac[4],
201 hcm.mac.mac[5]);
202 radiotap = (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *) msg_buf;
203 getRadiotapHeader (radiotap, WLAN_MTU);
204 getWlanHeader (&radiotap->frame, &outmac, &inmac, WLAN_MTU);
205 start = time (NULL);
206 count = 0;
207 while (1)
208 {
209 ret = write (commpipe[1], msg_buf, WLAN_MTU);
210 if (0 > ret)
211 {
212 fprintf (stderr, "write failed: %s\n", strerror (errno));
213 break;
214 }
215 count += ret;
216 akt = time (NULL);
217 if (akt - start > 30)
218 {
219 bytes_per_s = count / (akt - start);
220 bytes_per_s /= 1024;
221 printf ("send %f kbytes/s\n", bytes_per_s);
222 start = akt;
223 count = 0;
224 }
225 }
226 }
227 else
228 {
229 /* A zero PID indicates that this is the child process */
230 (void) close (0);
231 (void) close (1);
232 if (-1 ==
233 dup2 (commpipe[0], 0)) /* Replace stdin with the in side of the pipe */
234 fprintf (stderr, "dup2 failed: %s\n", strerror (errno));
235 if (-1 ==
236 dup2 (macpipe[1], 1)) /* Replace stdout with the out side of the pipe */
237 fprintf (stderr, "dup2 failed: %s\n", strerror (errno));
238 (void) close (commpipe[1]); /* Close unused side of pipe (out side) */
239 (void) close (macpipe[0]); /* Close unused side of pipe (in side) */
240 /* Replace the child fork with a new process */
241 if (execlp ("gnunet-helper-transport-wlan",
242 "gnunet-helper-transport-wlan",
243 argv[1],
244 NULL) == -1)
245 {
246 fprintf (stderr, "Could not start gnunet-helper-transport-wlan!");
247 _exit (1);
248 }
249 }
250 return 0;
251}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-30 10:53:49 +0000