if_ath.c (167ecdca8cf95e14128be2cf0e92b39f029fcfe6) if_ath.c (91101a2af3c9382d2866dd6fc7cc9f0443b22785)
1/*-
2 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 1721 unchanged lines hidden (view full) ---

1730 * XXX
1731 * IV must not duplicate during the lifetime of the key.
1732 * But no mechanism to renew keys is defined in IEEE 802.11
1733 * WEP. And IV may be duplicated between other stations
1734 * because of the session key itself is shared.
1735 * So we use pseudo random IV for now, though it is not the
1736 * right way.
1737 */
1/*-
2 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 1721 unchanged lines hidden (view full) ---

1730 * XXX
1731 * IV must not duplicate during the lifetime of the key.
1732 * But no mechanism to renew keys is defined in IEEE 802.11
1733 * WEP. And IV may be duplicated between other stations
1734 * because of the session key itself is shared.
1735 * So we use pseudo random IV for now, though it is not the
1736 * right way.
1737 */
1738 iv = arc4random();
1738 iv = ic->ic_iv;
1739 /*
1740 * Skip 'bad' IVs from Fluhrer/Mantin/Shamir:
1741 * (B, 255, N) with 3 <= B < 8
1742 */
1743 if (iv >= 0x03ff00 && (iv & 0xf8ff00) == 0x00ff00)
1744 iv += 0x000100;
1745 ic->ic_iv = iv + 1;
1739 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) {
1740 ivp[i] = iv;
1741 iv >>= 8;
1742 }
1743 ivp[i] = sc->sc_ic.ic_wep_txkey << 6; /* Key ID and pad */
1744 memcpy(mtod(m0, caddr_t), hdrbuf, sizeof(hdrbuf));
1745 /*
1746 * The ICV length must be included into hdrlen and pktlen.

--- 997 unchanged lines hidden --- 		1746 for (i = 0; i < IEEE80211_WEP_IVLEN; i++) {
1747 ivp[i] = iv;
1748 iv >>= 8;
1749 }
1750 ivp[i] = sc->sc_ic.ic_wep_txkey << 6; /* Key ID and pad */
1751 memcpy(mtod(m0, caddr_t), hdrbuf, sizeof(hdrbuf));
1752 /*
1753 * The ICV length must be included into hdrlen and pktlen.

--- 997 unchanged lines hidden ---