* @return GNUNET_YES at success
*/
static int
-getRadiotapHeader ( struct Radiotap_Send *header)
+getRadiotapHeader (struct Radiotap_Send *header)
{
- header->rate = 255;
- header->tx_power = 0;
- header->antenna = 0;
+ header->rate = 255;
+ header->tx_power = 0;
+ header->antenna = 0;
return GNUNET_YES;
}
* @return GNUNET_YES if there was no error
*/
static int
-getWlanHeader (struct ieee80211_frame *Header,
- const char *to_mac_addr, const char *mac,
- unsigned int size)
+getWlanHeader (struct ieee80211_frame *Header, const char *to_mac_addr,
+ const char *mac, unsigned int size)
{
uint16_t *tmp16;
const int rate = 11000000;
Header->i_fc[0] = IEEE80211_FC0_TYPE_DATA;
Header->i_fc[1] = 0x00;
memcpy (&Header->i_addr3, &mac_bssid, sizeof (mac_bssid));
- memcpy (&Header->i_addr2, mac,
- sizeof (mac_bssid));
+ memcpy (&Header->i_addr2, mac, sizeof (mac_bssid));
memcpy (&Header->i_addr1, to_mac_addr, sizeof (mac_bssid));
tmp16 = (uint16_t *) Header->i_dur;
return GNUNET_YES;
}
-int main(int argc, char *argv[]){
+int
+main (int argc, char *argv[])
+{
char msg_buf[WLAN_MTU];
- struct GNUNET_MessageHeader *msg;
- struct ieee80211_frame *wlan_header;
- struct Radiotap_Send *radiotap;
-
- unsigned int temp[6];
- char inmac[6];
- char outmac[6];
- int pos;
- long long count;
- double bytes_per_s;
- time_t start;
- time_t akt;
- int i;
-
- if (4 != argc) {
- fprintf(
- stderr,
- "This program must be started with the interface and the targets and source mac as argument.\nThis program was compiled at ----- %s ----\n",
- __TIMESTAMP__);
- fprintf(stderr, "Usage: interface-name mac-target mac-source\n" "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
- return 1;
- }
- if (6 !=
- sscanf(argv[3], "%x-%x-%x-%x-%x-%x", &temp[0],&temp[1],&temp[2],&temp[3],&temp[4],&temp[5]))
- {
- fprintf(stderr, "Usage: interface-name mac-target mac-source\n" "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
- return 1;
- }
- if (6 !=
- sscanf(argv[2], "%x-%x-%x-%x-%x-%x", &temp[0],&temp[1],&temp[2],&temp[3],&temp[4],&temp[5]))
- {
- fprintf(stderr, "Usage: interface-name mac-target mac-source\n" "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
- return 1;
- }
- for (i = 0; i < 6; i++)
- {
- inmac[i] = temp[i];
- }
- for (i = 0; i < 6; i++)
- {
- outmac[i] = temp[i];
- }
-
-
- pid_t pid;
- int commpipe[2]; /* This holds the fd for the input & output of the pipe */
-
- /* Setup communication pipeline first */
- if(pipe(commpipe)){
- fprintf(stderr,"Pipe error!\n");
- exit(1);
- }
-
- /* Attempt to fork and check for errors */
- if( (pid=fork()) == -1){
- fprintf(stderr,"Fork error. Exiting.\n"); /* something went wrong */
- exit(1);
- }
-
- if(pid){
- /* A positive (non-negative) PID indicates the parent process */
- close(commpipe[0]); /* Close unused side of pipe (in side) */
- setvbuf(stdout,(char*)NULL,_IONBF,0); /* Set non-buffered output on stdout */
-
-
- msg = (struct GNUNET_MessageHeader*) msg_buf;
- msg->type = htons (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA);
- msg->size = htons (WLAN_MTU);
- radiotap = (struct Radiotap_Send *) &msg[1];
- wlan_header = (struct ieee80211_frame *) &radiotap[1];
- pos = 0;
-
- getRadiotapHeader(radiotap);
- getWlanHeader(wlan_header, outmac, inmac, WLAN_MTU - sizeof(struct GNUNET_MessageHeader));
-
- start = time(NULL);
- count = 0;
- while (1){
- pos += write(commpipe[1], msg, WLAN_MTU - pos);
- if (pos % WLAN_MTU == 0){
- pos = 0;
- count ++;
-
- if (count % 1000 == 0){
- akt = time(NULL);
- bytes_per_s = count * WLAN_MTU / (akt - start);
- bytes_per_s /= 1024;
- printf("send %f kbytes/s\n", bytes_per_s);
- }
- }
-
- }
- }
- else{
- /* A zero PID indicates that this is the child process */
- (void) close(0);
- if (-1 == dup2(commpipe[0],0)) /* Replace stdin with the in side of the pipe */
- fprintf (stderr,
- "dup2 failed: %s\n",
- strerror (errno));
- (void) close(commpipe[1]); /* Close unused side of pipe (out side) */
- /* Replace the child fork with a new process */
- if (execl("gnunet-transport-wlan-helper","gnunet-transport-wlan-helper", argv[1], NULL) == -1)
- {
- fprintf(stderr,"Could not start gnunet-transport-wlan-helper!");
- _exit(1);
- }
- }
- return 0;
+ struct GNUNET_MessageHeader *msg;
+ struct ieee80211_frame *wlan_header;
+ struct Radiotap_Send *radiotap;
+
+ unsigned int temp[6];
+ char inmac[6];
+ char outmac[6];
+ int pos;
+ long long count;
+ double bytes_per_s;
+ time_t start;
+ time_t akt;
+ int i;
+
+ if (4 != argc)
+ {
+ fprintf (stderr,
+ "This program must be started with the interface and the targets and source mac as argument.\nThis program was compiled at ----- %s ----\n",
+ __TIMESTAMP__);
+ fprintf (stderr,
+ "Usage: interface-name mac-target mac-source\n"
+ "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
+ return 1;
+ }
+ if (6 !=
+ sscanf (argv[3], "%x-%x-%x-%x-%x-%x", &temp[0], &temp[1], &temp[2],
+ &temp[3], &temp[4], &temp[5]))
+ {
+ fprintf (stderr,
+ "Usage: interface-name mac-target mac-source\n"
+ "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
+ return 1;
+ }
+ if (6 !=
+ sscanf (argv[2], "%x-%x-%x-%x-%x-%x", &temp[0], &temp[1], &temp[2],
+ &temp[3], &temp[4], &temp[5]))
+ {
+ fprintf (stderr,
+ "Usage: interface-name mac-target mac-source\n"
+ "e.g. mon0 11-22-33-44-55-66 12-34-56-78-90-ab\n");
+ return 1;
+ }
+ for (i = 0; i < 6; i++)
+ {
+ inmac[i] = temp[i];
+ }
+ for (i = 0; i < 6; i++)
+ {
+ outmac[i] = temp[i];
+ }
+
+
+ pid_t pid;
+ int commpipe[2]; /* This holds the fd for the input & output of the pipe */
+
+ /* Setup communication pipeline first */
+ if (pipe (commpipe))
+ {
+ fprintf (stderr, "Pipe error!\n");
+ exit (1);
+ }
+
+ /* Attempt to fork and check for errors */
+ if ((pid = fork ()) == -1)
+ {
+ fprintf (stderr, "Fork error. Exiting.\n"); /* something went wrong */
+ exit (1);
+ }
+
+ if (pid)
+ {
+ /* A positive (non-negative) PID indicates the parent process */
+ close (commpipe[0]); /* Close unused side of pipe (in side) */
+ setvbuf (stdout, (char *) NULL, _IONBF, 0); /* Set non-buffered output on stdout */
+
+
+ msg = (struct GNUNET_MessageHeader *) msg_buf;
+ msg->type = htons (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA);
+ msg->size = htons (WLAN_MTU);
+ radiotap = (struct Radiotap_Send *) &msg[1];
+ wlan_header = (struct ieee80211_frame *) &radiotap[1];
+ pos = 0;
+
+ getRadiotapHeader (radiotap);
+ getWlanHeader (wlan_header, outmac, inmac,
+ WLAN_MTU - sizeof (struct GNUNET_MessageHeader));
+
+ start = time (NULL);
+ count = 0;
+ while (1)
+ {
+ pos += write (commpipe[1], msg, WLAN_MTU - pos);
+ if (pos % WLAN_MTU == 0)
+ {
+ pos = 0;
+ count++;
+
+ if (count % 1000 == 0)
+ {
+ akt = time (NULL);
+ bytes_per_s = count * WLAN_MTU / (akt - start);
+ bytes_per_s /= 1024;
+ printf ("send %f kbytes/s\n", bytes_per_s);
+ }
+ }
+
+ }
+ }
+ else
+ {
+ /* A zero PID indicates that this is the child process */
+ (void) close (0);
+ if (-1 == dup2 (commpipe[0], 0)) /* Replace stdin with the in side of the pipe */
+ fprintf (stderr, "dup2 failed: %s\n", strerror (errno));
+ (void) close (commpipe[1]); /* Close unused side of pipe (out side) */
+ /* Replace the child fork with a new process */
+ if (execl
+ ("gnunet-transport-wlan-helper", "gnunet-transport-wlan-helper",
+ argv[1], NULL) == -1)
+ {
+ fprintf (stderr, "Could not start gnunet-transport-wlan-helper!");
+ _exit (1);
+ }
+ }
+ return 0;
}
projects / oweals / gnunet.git / blobdiff