void read_wifi(struct params *p)
{
char buf[4096];
int rc;
struct ieee80211_frame *wh;
rc = sniff(p->rx, buf, sizeof(buf));
if (rc == -1)
err(1, "sniff()");
wh = get_wifi(buf, &rc);
if (!wh)
return;
/* filter my own shit */
if (memcmp(wh->i_addr2, p->mac, 6) == 0) {
/* XXX CTL frames */
if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) !=
IEEE80211_FC0_TYPE_CTL)
return;
}
#if 1
ack(p, wh);
#endif
if (duplicate(p, wh, rc)) {
#if 0
printf("Dup\n");
#endif
return;
}
switch (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
case IEEE80211_FC0_TYPE_MGT:
read_mgt(p, wh, rc);
break;
case IEEE80211_FC0_TYPE_CTL:
read_ctl(p, wh, rc);
break;
case IEEE80211_FC0_TYPE_DATA:
read_data(p, wh, rc);
break;
default:
printf("wtf\n");
abort();
break;
}
}
void read_wifi(struct params *p)
{
static char *buf = 0;
static int buflen = 4096;
struct ieee80211_frame *wh;
int rc;
if (!buf) {
buf = (char*) malloc(buflen);
if (!buf)
err(1, "malloc()");
}
rc = sniff(p->rx, buf, buflen);
if (rc == -1)
err(1, "sniff()");
wh = get_wifi(buf, &rc);
if (!wh)
return;
/* relayed macast */
if (frame_type(wh, IEEE80211_FC0_TYPE_DATA,
IEEE80211_FC0_SUBTYPE_DATA) &&
(wh->i_fc[1] & IEEE80211_FC1_DIR_FROMDS) &&
(memcmp(wh->i_addr2, p->ap, 6) == 0) &&
(memcmp(wh->i_addr1, p->mcast, 5) == 0) &&
(memcmp(p->mac, wh->i_addr3, 6) == 0)) {
got_mcast(p, wh, rc);
return;
}
/* data */
if (frame_type(wh, IEEE80211_FC0_TYPE_DATA,
IEEE80211_FC0_SUBTYPE_DATA)) {
if (!wanted(p, wh, rc))
return;
enque(p, &buf, wh, rc);
if (p->state == S_START)
send_queue(p);
return;
}
}
int main(void) {
Display *dpy;
Window root;
char status[201], net[30], vol[14], cpu[14], mem[14], bat[48];
int netloops = 60;
dpy = XOpenDisplay(NULL);
if(dpy == NULL) {
fprintf(stderr, "ERROR: could not open display\n");
return 1;
}
root = XRootWindow(dpy, DefaultScreen(dpy));
winfo = malloc(sizeof(struct wireless_info));
memset(winfo, 0, sizeof(struct wireless_info));
skfd = iw_sockets_open();
infile = fopen(CPU_F, "r");
fscanf(infile, "cpu %ld %ld %ld %ld", &jif1, &jif2, &jif3, &jif4); fclose(infile);
while(1) {
if(++netloops > 60) {
netloops = 0;
get_wifi(net);
}
get_vol(vol);
get_cpu(cpu);
get_mem(mem);
get_bat(bat);
sprintf(status, "%s %s %s %s %s", net, vol, cpu, mem, bat);
XStoreName(dpy, root, status);
XFlush(dpy);
sleep(INTERVAL);
}
/* NEXT LINES SHOULD NEVER EXECUTE! */
XCloseDisplay(dpy);
iw_sockets_close(skfd);
return 0;
}
