So here is a mystery for people who enjoy such mysterious things.
drivers/staging/rt2860/sta_ioctl.c +1020 rt_ioctl_giwscan(219)
1011 if (CAP_IS_PRIVACY_ON
1012 (pAdapter->ScanTab.BssEntry[i].CapabilityInfo))
1013 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
1014 else
1015 iwe.u.data.flags = IW_ENCODE_DISABLED;
1016
1017 __smatch_value("iwe.u.data.flags");
1018 previous_ev = current_ev;
1019 current_ev =
1020 iwe_stream_add_point(info, current_ev, end_buf, &iwe,
1021 (char *)pAdapter->
1022 SharedKey[BSS0][(iwe.u.data.
1023 flags &
1024 IW_ENCODE_INDEX) -
1025 1].Key);
That last bit is easier to read if it's on one line.
SharedKey[BSS0][(iwe.u.data.flags & IW_ENCODE_INDEX) - 1].Key);
iwe.u.data.flags is either 0x0400 or 0x8000. IW_ENCODE_INDEX is 0xff, so
after we mask off the lower bits we get 0x00 and then we subtract 1 we get
an array offset of -1.
I doubt that's what we want, but what _do_ we want here?
regards,
dan carpenter
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