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Commit e4e5e2b0 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: properly validate/translate IW_AUTH_MFP values 



Make sure nobody passes in bogus values, and translate the values
(although it isn't necessary).

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent a4727801

net/mac80211/wext.c

+15 −3
Original line number Diff line number Diff line
@@ -982,9 +982,21 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev, 
			break;

		}

		if (sdata->vif.type == NL80211_IFTYPE_STATION ||

		    sdata->vif.type == NL80211_IFTYPE_ADHOC)

			sdata->u.sta.mfp = data->value;

		else

		    sdata->vif.type == NL80211_IFTYPE_ADHOC) {

			switch (data->value) {

			case IW_AUTH_MFP_DISABLED:

				sdata->u.sta.mfp = IEEE80211_MFP_DISABLED;

				break;

			case IW_AUTH_MFP_OPTIONAL:

				sdata->u.sta.mfp = IEEE80211_MFP_OPTIONAL;

				break;

			case IW_AUTH_MFP_REQUIRED:

				sdata->u.sta.mfp = IEEE80211_MFP_REQUIRED;

				break;

			default:

				ret = -EINVAL;

			}

		} else

			ret = -EOPNOTSUPP;

		break;

	default: