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Drain all pending events from the driver when we get an

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RTM_IFINFO message, in case some were posted before ndis_events
was run. This keeps us in sync with wpa_supplicant.
This commit is contained in:
Bill Paul 2005-10-12 00:57:31 +00:00
parent b0d089b7f3
commit 3108872113
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=151246
1 changed files with 32 additions and 18 deletions
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50
usr.sbin/wpa/ndis_events/ndis_events.c
View File

@ -92,7 +92,7 @@ struct ndis_evt {
};
static int find_ifname(int, char *);
static void announce_event(char *, int, struct sockaddr_in *);
static int announce_event(char *, int, struct sockaddr_in *);
static void usage(char *);
static void
@ -104,7 +104,7 @@ dbgmsg(const char *fmt, ...)
if (debug)
vwarnx(fmt, ap);
else
vsyslog(LOG_INFO, fmt, ap);
vsyslog(LOG_ERR, fmt, ap);
va_end(ap);
return;
@ -163,7 +163,7 @@ find_ifname(idx, name)
return(ENOENT);
}
static void
static int
announce_event(ifname, sock, dst)
char *ifname;
int sock;
@ -178,8 +178,10 @@ announce_event(ifname, sock, dst)
s = socket(PF_INET, SOCK_DGRAM, 0);
if (s < 0)
return;
if (s < 0) {
dbgmsg("socket creation failed");
return(EINVAL);
}
bzero((char *)&ifr, sizeof(ifr));
e = (struct ndis_evt *)indication;
@ -190,23 +192,31 @@ announce_event(ifname, sock, dst)
if (ioctl(s, SIOCGPRIVATE_0, &ifr) < 0) {
close(s);
dbgmsg("failed to read event info from %s: %d", ifname, errno);
return;
if (errno == ENOENT)
dbgmsg("drained all events from %s", ifname, errno);
else
dbgmsg("failed to read event info from %s: %d",
ifname, errno);
return(ENOENT);
}
if (e->ne_sts == NDIS_STATUS_MEDIA_CONNECT) {
type = EVENT_CONNECT;
if (verbose)
dbgmsg("Received a connect event for %s", ifname);
if (!all_events)
return;
if (!all_events) {
close(s);
return(0);
}
}
if (e->ne_sts == NDIS_STATUS_MEDIA_DISCONNECT) {
type = EVENT_DISCONNECT;
if (verbose)
dbgmsg("Received a disconnect event for %s", ifname);
if (!all_events)
return;
if (!all_events) {
close(s);
return(0);
}
}
if (e->ne_sts == NDIS_STATUS_MEDIA_SPECIFIC_INDICATION) {
type = EVENT_MEDIA_SPECIFIC;
@ -221,8 +231,10 @@ announce_event(ifname, sock, dst)
pos = buf + sizeof(_type);
len = snprintf(pos + 1, end - pos - 1, "%s", ifname);
if (len < 0)
return;
if (len < 0) {
close(s);
return(ENOSPC);
}
if (len > 255)
len = 255;
*pos = (unsigned char) len;
@ -231,7 +243,8 @@ announce_event(ifname, sock, dst)
if (e->ne_len > 255 || 1 + e->ne_len > end - pos) {
dbgmsg("Not enough room for send_event data (%d)\n",
e->ne_len);
return;
close(s);
return(ENOSPC);
}
*pos++ = (unsigned char) e->ne_len;
memcpy(pos, (indication) + sizeof(struct ndis_evt), e->ne_len);
@ -242,7 +255,7 @@ announce_event(ifname, sock, dst)
sizeof(struct sockaddr_in));
close(s);
return;
return(0);
}
static void
@ -324,9 +337,10 @@ main(argc, argv)
ifm = (struct if_msghdr *)msg;
if (find_ifname(ifm->ifm_index, ifname))
continue;
if (strstr(ifname, "ndis"))
announce_event(ifname, s, &sin);
else {
if (strstr(ifname, "ndis")) {
while(announce_event(ifname, s, &sin) == 0)
;
} else {
if (verbose)
dbgmsg("Skipping ifinfo message from %s",
ifname);