Date: Sun, 22 Apr 2007 06:18:33 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 118564 for review Message-ID: <200704220618.l3M6IX9Y033953@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=118564 Change 118564 by sam@sam_ebb on 2007/04/22 06:18:23 give IEEE80211_VERIFY_LENGTH and action parameter so it can be do something other than return on failure; will be used for 11n support Affected files ... .. //depot/projects/wifi/sys/net80211/ieee80211_input.c#101 edit Differences ... ==== //depot/projects/wifi/sys/net80211/ieee80211_input.c#101 (text+ko) ==== @@ -1347,7 +1347,7 @@ } \ } while (0) -#define IEEE80211_VERIFY_LENGTH(_len, _minlen) do { \ +#define IEEE80211_VERIFY_LENGTH(_len, _minlen, _action) do { \ if ((_len) < (_minlen)) { \ IEEE80211_DISCARD(ic, IEEE80211_MSG_ELEMID, \ wh, ieee80211_mgt_subtype_name[subtype >> \ @@ -1355,7 +1355,7 @@ "ie too short, got %d, expected %d", \ (_len), (_minlen)); \ ic->ic_stats.is_rx_elem_toosmall++; \ - return; \ + _action; \ } \ } while (0) @@ -2027,7 +2027,7 @@ * [tlv] WPA or RSN * [tlv] Atheros capabilities */ - IEEE80211_VERIFY_LENGTH(efrm - frm, 12); + IEEE80211_VERIFY_LENGTH(efrm - frm, 12, return); memset(&scan, 0, sizeof(scan)); scan.tstamp = frm; frm += 8; scan.bintval = le16toh(*(u_int16_t *)frm); frm += 2; @@ -2036,7 +2036,7 @@ scan.chan = scan.bchan; while (efrm - frm > 1) { - IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); switch (*frm) { case IEEE80211_ELEMID_SSID: scan.ssid = frm; @@ -2327,7 +2327,7 @@ */ ssid = rates = xrates = ath = NULL; while (efrm - frm > 1) { - IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); switch (*frm) { case IEEE80211_ELEMID_SSID: ssid = frm; @@ -2413,7 +2413,7 @@ * [2] status * [tlv*] challenge */ - IEEE80211_VERIFY_LENGTH(efrm - frm, 6); + IEEE80211_VERIFY_LENGTH(efrm - frm, 6, return); algo = le16toh(*(u_int16_t *)frm); seq = le16toh(*(u_int16_t *)(frm + 2)); status = le16toh(*(u_int16_t *)(frm + 4)); @@ -2499,7 +2499,7 @@ * [tlv] WPA or RSN * [tlv] Atheros capabilities */ - IEEE80211_VERIFY_LENGTH(efrm - frm, (reassoc ? 10 : 4)); + IEEE80211_VERIFY_LENGTH(efrm - frm, (reassoc ? 10 : 4), return); if (!IEEE80211_ADDR_EQ(wh->i_addr3, ic->ic_bss->ni_bssid)) { IEEE80211_DISCARD(ic, IEEE80211_MSG_ANY, wh, ieee80211_mgt_subtype_name[subtype >> @@ -2514,7 +2514,7 @@ frm += 6; /* ignore current AP info */ ssid = rates = xrates = wpa = rsn = wme = ath = NULL; while (efrm - frm > 1) { - IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); switch (*frm) { case IEEE80211_ELEMID_SSID: ssid = frm; @@ -2749,7 +2749,7 @@ * [tlv] extended supported rates * [tlv] WME */ - IEEE80211_VERIFY_LENGTH(efrm - frm, 6); + IEEE80211_VERIFY_LENGTH(efrm - frm, 6, return); ni = ic->ic_bss; capinfo = le16toh(*(u_int16_t *)frm); frm += 2; @@ -2770,7 +2770,7 @@ rates = xrates = wme = NULL; while (efrm - frm > 1) { - IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, frm[1] + 2, return); switch (*frm) { case IEEE80211_ELEMID_RATES: rates = frm; @@ -2870,7 +2870,7 @@ * deauth frame format * [2] reason */ - IEEE80211_VERIFY_LENGTH(efrm - frm, 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, 2, return); reason = le16toh(*(u_int16_t *)frm); ic->ic_stats.is_rx_deauth++; IEEE80211_NODE_STAT(ni, rx_deauth); @@ -2912,7 +2912,7 @@ * disassoc frame format * [2] reason */ - IEEE80211_VERIFY_LENGTH(efrm - frm, 2); + IEEE80211_VERIFY_LENGTH(efrm - frm, 2, return); reason = le16toh(*(u_int16_t *)frm); ic->ic_stats.is_rx_disassoc++; IEEE80211_NODE_STAT(ni, rx_disassoc);
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