Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 | /*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2007, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************
Module Name:
wpa.c
Abstract:
Revision History:
Who When What
-------- ---------- ----------------------------------------------
Jan Lee 03-07-22 Initial
Paul Lin 03-11-28 Modify for supplicant
*/
#include "../rt_config.h"
// WPA OUI
UCHAR OUI_WPA_NONE_AKM[4] = {0x00, 0x50, 0xF2, 0x00};
UCHAR OUI_WPA_VERSION[4] = {0x00, 0x50, 0xF2, 0x01};
UCHAR OUI_WPA_WEP40[4] = {0x00, 0x50, 0xF2, 0x01};
UCHAR OUI_WPA_TKIP[4] = {0x00, 0x50, 0xF2, 0x02};
UCHAR OUI_WPA_CCMP[4] = {0x00, 0x50, 0xF2, 0x04};
UCHAR OUI_WPA_WEP104[4] = {0x00, 0x50, 0xF2, 0x05};
UCHAR OUI_WPA_8021X_AKM[4] = {0x00, 0x50, 0xF2, 0x01};
UCHAR OUI_WPA_PSK_AKM[4] = {0x00, 0x50, 0xF2, 0x02};
// WPA2 OUI
UCHAR OUI_WPA2_WEP40[4] = {0x00, 0x0F, 0xAC, 0x01};
UCHAR OUI_WPA2_TKIP[4] = {0x00, 0x0F, 0xAC, 0x02};
UCHAR OUI_WPA2_CCMP[4] = {0x00, 0x0F, 0xAC, 0x04};
UCHAR OUI_WPA2_8021X_AKM[4] = {0x00, 0x0F, 0xAC, 0x01};
UCHAR OUI_WPA2_PSK_AKM[4] = {0x00, 0x0F, 0xAC, 0x02};
UCHAR OUI_WPA2_WEP104[4] = {0x00, 0x0F, 0xAC, 0x05};
static VOID ConstructEapolKeyData(
IN PMAC_TABLE_ENTRY pEntry,
IN UCHAR GroupKeyWepStatus,
IN UCHAR keyDescVer,
IN UCHAR MsgType,
IN UCHAR DefaultKeyIdx,
IN UCHAR *GTK,
IN UCHAR *RSNIE,
IN UCHAR RSNIE_LEN,
OUT PEAPOL_PACKET pMsg);
static VOID CalculateMIC(
IN UCHAR KeyDescVer,
IN UCHAR *PTK,
OUT PEAPOL_PACKET pMsg);
static VOID WpaEAPPacketAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem);
static VOID WpaEAPOLASFAlertAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem);
static VOID WpaEAPOLLogoffAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem);
static VOID WpaEAPOLStartAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem);
static VOID WpaEAPOLKeyAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem);
/*
==========================================================================
Description:
association state machine init, including state transition and timer init
Parameters:
S - pointer to the association state machine
==========================================================================
*/
VOID WpaStateMachineInit(
IN PRTMP_ADAPTER pAd,
IN STATE_MACHINE *S,
OUT STATE_MACHINE_FUNC Trans[])
{
StateMachineInit(S, (STATE_MACHINE_FUNC *)Trans, MAX_WPA_PTK_STATE, MAX_WPA_MSG, (STATE_MACHINE_FUNC)Drop, WPA_PTK, WPA_MACHINE_BASE);
StateMachineSetAction(S, WPA_PTK, MT2_EAPPacket, (STATE_MACHINE_FUNC)WpaEAPPacketAction);
StateMachineSetAction(S, WPA_PTK, MT2_EAPOLStart, (STATE_MACHINE_FUNC)WpaEAPOLStartAction);
StateMachineSetAction(S, WPA_PTK, MT2_EAPOLLogoff, (STATE_MACHINE_FUNC)WpaEAPOLLogoffAction);
StateMachineSetAction(S, WPA_PTK, MT2_EAPOLKey, (STATE_MACHINE_FUNC)WpaEAPOLKeyAction);
StateMachineSetAction(S, WPA_PTK, MT2_EAPOLASFAlert, (STATE_MACHINE_FUNC)WpaEAPOLASFAlertAction);
}
/*
==========================================================================
Description:
this is state machine function.
When receiving EAP packets which is for 802.1x authentication use.
Not use in PSK case
Return:
==========================================================================
*/
VOID WpaEAPPacketAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
}
VOID WpaEAPOLASFAlertAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
}
VOID WpaEAPOLLogoffAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
}
/*
==========================================================================
Description:
Start 4-way HS when rcv EAPOL_START which may create by our driver in assoc.c
Return:
==========================================================================
*/
VOID WpaEAPOLStartAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
MAC_TABLE_ENTRY *pEntry;
PHEADER_802_11 pHeader;
DBGPRINT(RT_DEBUG_TRACE, ("WpaEAPOLStartAction ===> \n"));
pHeader = (PHEADER_802_11)Elem->Msg;
//For normaol PSK, we enqueue an EAPOL-Start command to trigger the process.
if (Elem->MsgLen == 6)
pEntry = MacTableLookup(pAd, Elem->Msg);
else
{
pEntry = MacTableLookup(pAd, pHeader->Addr2);
}
if (pEntry)
{
DBGPRINT(RT_DEBUG_TRACE, (" PortSecured(%d), WpaState(%d), AuthMode(%d), PMKID_CacheIdx(%d) \n", pEntry->PortSecured, pEntry->WpaState, pEntry->AuthMode, pEntry->PMKID_CacheIdx));
if ((pEntry->PortSecured == WPA_802_1X_PORT_NOT_SECURED)
&& (pEntry->WpaState < AS_PTKSTART)
&& ((pEntry->AuthMode == Ndis802_11AuthModeWPAPSK) || (pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK) || ((pEntry->AuthMode == Ndis802_11AuthModeWPA2) && (pEntry->PMKID_CacheIdx != ENTRY_NOT_FOUND))))
{
pEntry->PrivacyFilter = Ndis802_11PrivFilter8021xWEP;
pEntry->WpaState = AS_INITPSK;
pEntry->PortSecured = WPA_802_1X_PORT_NOT_SECURED;
NdisZeroMemory(pEntry->R_Counter, sizeof(pEntry->R_Counter));
pEntry->ReTryCounter = PEER_MSG1_RETRY_TIMER_CTR;
WPAStart4WayHS(pAd, pEntry, PEER_MSG1_RETRY_EXEC_INTV);
}
}
}
/*
==========================================================================
Description:
This is state machine function.
When receiving EAPOL packets which is for 802.1x key management.
Use both in WPA, and WPAPSK case.
In this function, further dispatch to different functions according to the received packet. 3 categories are :
1. normal 4-way pairwisekey and 2-way groupkey handshake
2. MIC error (Countermeasures attack) report packet from STA.
3. Request for pairwise/group key update from STA
Return:
==========================================================================
*/
VOID WpaEAPOLKeyAction(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
MAC_TABLE_ENTRY *pEntry;
PHEADER_802_11 pHeader;
PEAPOL_PACKET pEapol_packet;
KEY_INFO peerKeyInfo;
DBGPRINT(RT_DEBUG_TRACE, ("WpaEAPOLKeyAction ===>\n"));
pHeader = (PHEADER_802_11)Elem->Msg;
pEapol_packet = (PEAPOL_PACKET)&Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
NdisZeroMemory((PUCHAR)&peerKeyInfo, sizeof(peerKeyInfo));
NdisMoveMemory((PUCHAR)&peerKeyInfo, (PUCHAR)&pEapol_packet->KeyDesc.KeyInfo, sizeof(KEY_INFO));
hex_dump("Received Eapol frame", (unsigned char *)pEapol_packet, (Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H));
*((USHORT *)&peerKeyInfo) = cpu2le16(*((USHORT *)&peerKeyInfo));
do
{
pEntry = MacTableLookup(pAd, pHeader->Addr2);
if (!pEntry || ((!pEntry->ValidAsCLI) && (!pEntry->ValidAsApCli)))
break;
if (pEntry->AuthMode < Ndis802_11AuthModeWPA)
break;
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPoL-Key frame from STA %02X-%02X-%02X-%02X-%02X-%02X\n", PRINT_MAC(pEntry->Addr)));
if (((pEapol_packet->ProVer != EAPOL_VER) && (pEapol_packet->ProVer != EAPOL_VER2)) ||
((pEapol_packet->KeyDesc.Type != WPA1_KEY_DESC) && (pEapol_packet->KeyDesc.Type != WPA2_KEY_DESC)))
{
DBGPRINT(RT_DEBUG_ERROR, ("Key descripter does not match with WPA rule\n"));
break;
}
// The value 1 shall be used for all EAPOL-Key frames to and from a STA when
// neither the group nor pairwise ciphers are CCMP for Key Descriptor 1.
if ((pEntry->WepStatus == Ndis802_11Encryption2Enabled) && (peerKeyInfo.KeyDescVer != DESC_TYPE_TKIP))
{
DBGPRINT(RT_DEBUG_ERROR, ("Key descripter version not match(TKIP) \n"));
break;
}
// The value 2 shall be used for all EAPOL-Key frames to and from a STA when
// either the pairwise or the group cipher is AES-CCMP for Key Descriptor 2.
else if ((pEntry->WepStatus == Ndis802_11Encryption3Enabled) && (peerKeyInfo.KeyDescVer != DESC_TYPE_AES))
{
DBGPRINT(RT_DEBUG_ERROR, ("Key descripter version not match(AES) \n"));
break;
}
// Check if this STA is in class 3 state and the WPA state is started
if ((pEntry->Sst == SST_ASSOC) && (pEntry->WpaState >= AS_INITPSK))
{
// Check the Key Ack (bit 7) of the Key Information to determine the Authenticator
// or not.
// An EAPOL-Key frame that is sent by the Supplicant in response to an EAPOL-
// Key frame from the Authenticator must not have the Ack bit set.
if (peerKeyInfo.KeyAck == 1)
{
// The frame is snet by Authenticator.
// So the Supplicant side shall handle this.
if ((peerKeyInfo.Secure == 0) && (peerKeyInfo.Request == 0) &&
(peerKeyInfo.Error == 0) && (peerKeyInfo.KeyType == PAIRWISEKEY))
{
// Process 1. the message 1 of 4-way HS in WPA or WPA2
// EAPOL-Key(0,0,1,0,P,0,0,ANonce,0,DataKD_M1)
// 2. the message 3 of 4-way HS in WPA
// EAPOL-Key(0,1,1,1,P,0,KeyRSC,ANonce,MIC,DataKD_M3)
if (peerKeyInfo.KeyMic == 0)
PeerPairMsg1Action(pAd, pEntry, Elem);
else
PeerPairMsg3Action(pAd, pEntry, Elem);
}
else if ((peerKeyInfo.Secure == 1) &&
(peerKeyInfo.KeyMic == 1) &&
(peerKeyInfo.Request == 0) &&
(peerKeyInfo.Error == 0))
{
// Process 1. the message 3 of 4-way HS in WPA2
// EAPOL-Key(1,1,1,1,P,0,KeyRSC,ANonce,MIC,DataKD_M3)
// 2. the message 1 of group KS in WPA or WPA2
// EAPOL-Key(1,1,1,0,G,0,Key RSC,0, MIC,GTK[N])
if (peerKeyInfo.KeyType == PAIRWISEKEY)
PeerPairMsg3Action(pAd, pEntry, Elem);
else
PeerGroupMsg1Action(pAd, pEntry, Elem);
}
}
else
{
// The frame is snet by Supplicant.
// So the Authenticator side shall handle this.
if ((peerKeyInfo.Request == 0) &&
(peerKeyInfo.Error == 0) &&
(peerKeyInfo.KeyMic == 1))
{
if (peerKeyInfo.Secure == 0 && peerKeyInfo.KeyType == PAIRWISEKEY)
{
// EAPOL-Key(0,1,0,0,P,0,0,SNonce,MIC,Data)
// Process 1. message 2 of 4-way HS in WPA or WPA2
// 2. message 4 of 4-way HS in WPA
if (CONV_ARRARY_TO_UINT16(pEapol_packet->KeyDesc.KeyDataLen) == 0)
{
PeerPairMsg4Action(pAd, pEntry, Elem);
}
else
{
PeerPairMsg2Action(pAd, pEntry, Elem);
}
}
else if (peerKeyInfo.Secure == 1 && peerKeyInfo.KeyType == PAIRWISEKEY)
{
// EAPOL-Key(1,1,0,0,P,0,0,0,MIC,0)
// Process message 4 of 4-way HS in WPA2
PeerPairMsg4Action(pAd, pEntry, Elem);
}
else if (peerKeyInfo.Secure == 1 && peerKeyInfo.KeyType == GROUPKEY)
{
// EAPOL-Key(1,1,0,0,G,0,0,0,MIC,0)
// Process message 2 of Group key HS in WPA or WPA2
PeerGroupMsg2Action(pAd, pEntry, &Elem->Msg[LENGTH_802_11], (Elem->MsgLen - LENGTH_802_11));
}
}
}
}
}while(FALSE);
}
/*
========================================================================
Routine Description:
Copy frame from waiting queue into relative ring buffer and set
appropriate ASIC register to kick hardware encryption before really
sent out to air.
Arguments:
pAd Pointer to our adapter
PNDIS_PACKET Pointer to outgoing Ndis frame
NumberOfFrag Number of fragment required
Return Value:
None
Note:
========================================================================
*/
VOID RTMPToWirelessSta(
IN PRTMP_ADAPTER pAd,
IN PMAC_TABLE_ENTRY pEntry,
IN PUCHAR pHeader802_3,
IN UINT HdrLen,
IN PUCHAR pData,
IN UINT DataLen,
IN BOOLEAN bClearFrame)
{
PNDIS_PACKET pPacket;
NDIS_STATUS Status;
if ((!pEntry) || ((!pEntry->ValidAsCLI) && (!pEntry->ValidAsApCli)))
return;
do {
// build a NDIS packet
Status = RTMPAllocateNdisPacket(pAd, &pPacket, pHeader802_3, HdrLen, pData, DataLen);
if (Status != NDIS_STATUS_SUCCESS)
break;
if (bClearFrame)
RTMP_SET_PACKET_CLEAR_EAP_FRAME(pPacket, 1);
else
RTMP_SET_PACKET_CLEAR_EAP_FRAME(pPacket, 0);
{
RTMP_SET_PACKET_SOURCE(pPacket, PKTSRC_NDIS);
RTMP_SET_PACKET_NET_DEVICE_MBSSID(pPacket, MAIN_MBSSID); // set a default value
if(pEntry->apidx != 0)
RTMP_SET_PACKET_NET_DEVICE_MBSSID(pPacket, pEntry->apidx);
RTMP_SET_PACKET_WCID(pPacket, (UCHAR)pEntry->Aid);
RTMP_SET_PACKET_MOREDATA(pPacket, FALSE);
}
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
// send out the packet
Status = STASendPacket(pAd, pPacket);
if (Status == NDIS_STATUS_SUCCESS)
{
UCHAR Index;
// Dequeue one frame from TxSwQueue0..3 queue and process it
// There are three place calling dequeue for TX ring.
// 1. Here, right after queueing the frame.
// 2. At the end of TxRingTxDone service routine.
// 3. Upon NDIS call RTMPSendPackets
if((!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS)) &&
(!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RESET_IN_PROGRESS)))
{
for(Index = 0; Index < 5; Index ++)
if(pAd->TxSwQueue[Index].Number > 0)
RTMPDeQueuePacket(pAd, FALSE, Index, MAX_TX_PROCESS);
}
}
}
#endif // CONFIG_STA_SUPPORT //
} while (FALSE);
}
/*
==========================================================================
Description:
This is a function to initilize 4-way handshake
Return:
==========================================================================
*/
VOID WPAStart4WayHS(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN ULONG TimeInterval)
{
UCHAR Header802_3[14];
EAPOL_PACKET EAPOLPKT;
PUINT8 pBssid = NULL;
UCHAR group_cipher = Ndis802_11WEPDisabled;
DBGPRINT(RT_DEBUG_TRACE, ("===> WPAStart4WayHS\n"));
if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_RESET_IN_PROGRESS | fRTMP_ADAPTER_HALT_IN_PROGRESS))
{
DBGPRINT(RT_DEBUG_ERROR, ("[ERROR]WPAStart4WayHS : The interface is closed...\n"));
return;
}
if (pBssid == NULL)
{
DBGPRINT(RT_DEBUG_ERROR, ("[ERROR]WPAStart4WayHS : No corresponding Authenticator.\n"));
return;
}
// Check the status
if ((pEntry->WpaState > AS_PTKSTART) || (pEntry->WpaState < AS_INITPMK))
{
DBGPRINT(RT_DEBUG_ERROR, ("[ERROR]WPAStart4WayHS : Not expect calling\n"));
return;
}
// Increment replay counter by 1
ADD_ONE_To_64BIT_VAR(pEntry->R_Counter);
// Randomly generate ANonce
GenRandom(pAd, (UCHAR *)pBssid, pEntry->ANonce);
// Construct EAPoL message - Pairwise Msg 1
// EAPOL-Key(0,0,1,0,P,0,0,ANonce,0,DataKD_M1)
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_PAIR_MSG_1,
0, // Default key index
pEntry->ANonce,
NULL, // TxRSC
NULL, // GTK
NULL, // RSNIE
0, // RSNIE length
&EAPOLPKT);
// Make outgoing frame
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pBssid, EAPOL);
RTMPToWirelessSta(pAd, pEntry, Header802_3,
LENGTH_802_3, (PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4,
(pEntry->PortSecured == WPA_802_1X_PORT_SECURED) ? FALSE : TRUE);
// Trigger Retry Timer
RTMPModTimer(&pEntry->RetryTimer, TimeInterval);
// Update State
pEntry->WpaState = AS_PTKSTART;
DBGPRINT(RT_DEBUG_TRACE, ("<=== WPAStart4WayHS: send Msg1 of 4-way \n"));
}
/*
========================================================================
Routine Description:
Process Pairwise key Msg-1 of 4-way handshaking and send Msg-2
Arguments:
pAd Pointer to our adapter
Elem Message body
Return Value:
None
Note:
========================================================================
*/
VOID PeerPairMsg1Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN MLME_QUEUE_ELEM *Elem)
{
UCHAR PTK[80];
UCHAR Header802_3[14];
PEAPOL_PACKET pMsg1;
UINT MsgLen;
EAPOL_PACKET EAPOLPKT;
PUINT8 pCurrentAddr = NULL;
PUINT8 pmk_ptr = NULL;
UCHAR group_cipher = Ndis802_11WEPDisabled;
PUINT8 rsnie_ptr = NULL;
UCHAR rsnie_len = 0;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerPairMsg1Action \n"));
if ((!pEntry) || ((!pEntry->ValidAsCLI) && (!pEntry->ValidAsApCli)))
return;
if (Elem->MsgLen < (LENGTH_802_11 + LENGTH_802_1_H + LENGTH_EAPOL_H + sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE - 2))
return;
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
pCurrentAddr = pAd->CurrentAddress;
pmk_ptr = pAd->StaCfg.PMK;
group_cipher = pAd->StaCfg.GroupCipher;
rsnie_ptr = pAd->StaCfg.RSN_IE;
rsnie_len = pAd->StaCfg.RSNIE_Len;
}
#endif // CONFIG_STA_SUPPORT //
// Store the received frame
pMsg1 = (PEAPOL_PACKET) &Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
MsgLen = Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H;
// Sanity Check peer Pairwise message 1 - Replay Counter
if (PeerWpaMessageSanity(pAd, pMsg1, MsgLen, EAPOL_PAIR_MSG_1, pEntry) == FALSE)
return;
// Store Replay counter, it will use to verify message 3 and construct message 2
NdisMoveMemory(pEntry->R_Counter, pMsg1->KeyDesc.ReplayCounter, LEN_KEY_DESC_REPLAY);
// Store ANonce
NdisMoveMemory(pEntry->ANonce, pMsg1->KeyDesc.KeyNonce, LEN_KEY_DESC_NONCE);
// Generate random SNonce
GenRandom(pAd, (UCHAR *)pCurrentAddr, pEntry->SNonce);
{
// Calculate PTK(ANonce, SNonce)
WpaDerivePTK(pAd,
pmk_ptr,
pEntry->ANonce,
pEntry->Addr,
pEntry->SNonce,
pCurrentAddr,
PTK,
LEN_PTK);
// Save key to PTK entry
NdisMoveMemory(pEntry->PTK, PTK, LEN_PTK);
}
// Update WpaState
pEntry->WpaState = AS_PTKINIT_NEGOTIATING;
// Construct EAPoL message - Pairwise Msg 2
// EAPOL-Key(0,1,0,0,P,0,0,SNonce,MIC,DataKD_M2)
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_PAIR_MSG_2,
0, // DefaultKeyIdx
pEntry->SNonce,
NULL, // TxRsc
NULL, // GTK
(UCHAR *)rsnie_ptr,
rsnie_len,
&EAPOLPKT);
// Make outgoing frame
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pCurrentAddr, EAPOL);
RTMPToWirelessSta(pAd, pEntry,
Header802_3, sizeof(Header802_3), (PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4, TRUE);
DBGPRINT(RT_DEBUG_TRACE, ("<=== PeerPairMsg1Action: send Msg2 of 4-way \n"));
}
/*
==========================================================================
Description:
When receiving the second packet of 4-way pairwisekey handshake.
Return:
==========================================================================
*/
VOID PeerPairMsg2Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN MLME_QUEUE_ELEM *Elem)
{
UCHAR PTK[80];
BOOLEAN Cancelled;
PHEADER_802_11 pHeader;
EAPOL_PACKET EAPOLPKT;
PEAPOL_PACKET pMsg2;
UINT MsgLen;
UCHAR Header802_3[LENGTH_802_3];
UCHAR TxTsc[6];
PUINT8 pBssid = NULL;
PUINT8 pmk_ptr = NULL;
PUINT8 gtk_ptr = NULL;
UCHAR default_key = 0;
UCHAR group_cipher = Ndis802_11WEPDisabled;
PUINT8 rsnie_ptr = NULL;
UCHAR rsnie_len = 0;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerPairMsg2Action \n"));
if ((!pEntry) || (!pEntry->ValidAsCLI))
return;
if (Elem->MsgLen < (LENGTH_802_11 + LENGTH_802_1_H + LENGTH_EAPOL_H + sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE - 2))
return;
// check Entry in valid State
if (pEntry->WpaState < AS_PTKSTART)
return;
// pointer to 802.11 header
pHeader = (PHEADER_802_11)Elem->Msg;
// skip 802.11_header(24-byte) and LLC_header(8)
pMsg2 = (PEAPOL_PACKET)&Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
MsgLen = Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H;
// Store SNonce
NdisMoveMemory(pEntry->SNonce, pMsg2->KeyDesc.KeyNonce, LEN_KEY_DESC_NONCE);
{
// Derive PTK
WpaDerivePTK(pAd,
(UCHAR *)pmk_ptr,
pEntry->ANonce, // ANONCE
(UCHAR *)pBssid,
pEntry->SNonce, // SNONCE
pEntry->Addr,
PTK,
LEN_PTK);
NdisMoveMemory(pEntry->PTK, PTK, LEN_PTK);
}
// Sanity Check peer Pairwise message 2 - Replay Counter, MIC, RSNIE
if (PeerWpaMessageSanity(pAd, pMsg2, MsgLen, EAPOL_PAIR_MSG_2, pEntry) == FALSE)
return;
do
{
// delete retry timer
RTMPCancelTimer(&pEntry->RetryTimer, &Cancelled);
// Change state
pEntry->WpaState = AS_PTKINIT_NEGOTIATING;
// Increment replay counter by 1
ADD_ONE_To_64BIT_VAR(pEntry->R_Counter);
// Construct EAPoL message - Pairwise Msg 3
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_PAIR_MSG_3,
default_key,
pEntry->ANonce,
TxTsc,
(UCHAR *)gtk_ptr,
(UCHAR *)rsnie_ptr,
rsnie_len,
&EAPOLPKT);
// Make outgoing frame
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pBssid, EAPOL);
RTMPToWirelessSta(pAd, pEntry, Header802_3, LENGTH_802_3,
(PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4,
(pEntry->PortSecured == WPA_802_1X_PORT_SECURED) ? FALSE : TRUE);
pEntry->ReTryCounter = PEER_MSG3_RETRY_TIMER_CTR;
RTMPSetTimer(&pEntry->RetryTimer, PEER_MSG3_RETRY_EXEC_INTV);
// Update State
pEntry->WpaState = AS_PTKINIT_NEGOTIATING;
}while(FALSE);
DBGPRINT(RT_DEBUG_TRACE, ("<=== PeerPairMsg2Action: send Msg3 of 4-way \n"));
}
/*
========================================================================
Routine Description:
Process Pairwise key Msg 3 of 4-way handshaking and send Msg 4
Arguments:
pAd Pointer to our adapter
Elem Message body
Return Value:
None
Note:
========================================================================
*/
VOID PeerPairMsg3Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN MLME_QUEUE_ELEM *Elem)
{
PHEADER_802_11 pHeader;
UCHAR Header802_3[14];
EAPOL_PACKET EAPOLPKT;
PEAPOL_PACKET pMsg3;
UINT MsgLen;
PUINT8 pCurrentAddr = NULL;
UCHAR group_cipher = Ndis802_11WEPDisabled;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerPairMsg3Action \n"));
if ((!pEntry) || ((!pEntry->ValidAsCLI) && (!pEntry->ValidAsApCli)))
return;
if (Elem->MsgLen < (LENGTH_802_11 + LENGTH_802_1_H + LENGTH_EAPOL_H + sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE - 2))
return;
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
pCurrentAddr = pAd->CurrentAddress;
group_cipher = pAd->StaCfg.GroupCipher;
}
#endif // CONFIG_STA_SUPPORT //
// Record 802.11 header & the received EAPOL packet Msg3
pHeader = (PHEADER_802_11) Elem->Msg;
pMsg3 = (PEAPOL_PACKET) &Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
MsgLen = Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H;
// Sanity Check peer Pairwise message 3 - Replay Counter, MIC, RSNIE
if (PeerWpaMessageSanity(pAd, pMsg3, MsgLen, EAPOL_PAIR_MSG_3, pEntry) == FALSE)
return;
// Save Replay counter, it will use construct message 4
NdisMoveMemory(pEntry->R_Counter, pMsg3->KeyDesc.ReplayCounter, LEN_KEY_DESC_REPLAY);
// Double check ANonce
if (!NdisEqualMemory(pEntry->ANonce, pMsg3->KeyDesc.KeyNonce, LEN_KEY_DESC_NONCE))
{
return;
}
// Construct EAPoL message - Pairwise Msg 4
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_PAIR_MSG_4,
0, // group key index not used in message 4
NULL, // Nonce not used in message 4
NULL, // TxRSC not used in message 4
NULL, // GTK not used in message 4
NULL, // RSN IE not used in message 4
0,
&EAPOLPKT);
// Update WpaState
pEntry->WpaState = AS_PTKINITDONE;
// Update pairwise key
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
PCIPHER_KEY pSharedKey;
pSharedKey = &pAd->SharedKey[BSS0][0];
NdisMoveMemory(pAd->StaCfg.PTK, pEntry->PTK, LEN_PTK);
// Prepare pair-wise key information into shared key table
NdisZeroMemory(pSharedKey, sizeof(CIPHER_KEY));
pSharedKey->KeyLen = LEN_TKIP_EK;
NdisMoveMemory(pSharedKey->Key, &pAd->StaCfg.PTK[32], LEN_TKIP_EK);
NdisMoveMemory(pSharedKey->RxMic, &pAd->StaCfg.PTK[48], LEN_TKIP_RXMICK);
NdisMoveMemory(pSharedKey->TxMic, &pAd->StaCfg.PTK[48+LEN_TKIP_RXMICK], LEN_TKIP_TXMICK);
// Decide its ChiperAlg
if (pAd->StaCfg.PairCipher == Ndis802_11Encryption2Enabled)
pSharedKey->CipherAlg = CIPHER_TKIP;
else if (pAd->StaCfg.PairCipher == Ndis802_11Encryption3Enabled)
pSharedKey->CipherAlg = CIPHER_AES;
else
pSharedKey->CipherAlg = CIPHER_NONE;
// Update these related information to MAC_TABLE_ENTRY
pEntry = &pAd->MacTab.Content[BSSID_WCID];
NdisMoveMemory(pEntry->PairwiseKey.Key, &pAd->StaCfg.PTK[32], LEN_TKIP_EK);
NdisMoveMemory(pEntry->PairwiseKey.RxMic, &pAd->StaCfg.PTK[48], LEN_TKIP_RXMICK);
NdisMoveMemory(pEntry->PairwiseKey.TxMic, &pAd->StaCfg.PTK[48+LEN_TKIP_RXMICK], LEN_TKIP_TXMICK);
pEntry->PairwiseKey.CipherAlg = pSharedKey->CipherAlg;
// Update pairwise key information to ASIC Shared Key Table
AsicAddSharedKeyEntry(pAd,
BSS0,
0,
pSharedKey->CipherAlg,
pSharedKey->Key,
pSharedKey->TxMic,
pSharedKey->RxMic);
// Update ASIC WCID attribute table and IVEIV table
RTMPAddWcidAttributeEntry(pAd,
BSS0,
0,
pSharedKey->CipherAlg,
pEntry);
}
#endif // CONFIG_STA_SUPPORT //
// open 802.1x port control and privacy filter
if (pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK ||
pEntry->AuthMode == Ndis802_11AuthModeWPA2)
{
pEntry->PortSecured = WPA_802_1X_PORT_SECURED;
pEntry->PrivacyFilter = Ndis802_11PrivFilterAcceptAll;
#ifdef CONFIG_STA_SUPPORT
STA_PORT_SECURED(pAd);
// Indicate Connected for GUI
pAd->IndicateMediaState = NdisMediaStateConnected;
#endif // CONFIG_STA_SUPPORT //
DBGPRINT(RT_DEBUG_TRACE, ("PeerPairMsg3Action: AuthMode(%s) PairwiseCipher(%s) GroupCipher(%s) \n",
GetAuthMode(pEntry->AuthMode),
GetEncryptType(pEntry->WepStatus),
GetEncryptType(group_cipher)));
}
else
{
}
// Init 802.3 header and send out
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pCurrentAddr, EAPOL);
RTMPToWirelessSta(pAd, pEntry,
Header802_3, sizeof(Header802_3),
(PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4, TRUE);
DBGPRINT(RT_DEBUG_TRACE, ("<=== PeerPairMsg3Action: send Msg4 of 4-way \n"));
}
/*
==========================================================================
Description:
When receiving the last packet of 4-way pairwisekey handshake.
Initilize 2-way groupkey handshake following.
Return:
==========================================================================
*/
VOID PeerPairMsg4Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN MLME_QUEUE_ELEM *Elem)
{
PEAPOL_PACKET pMsg4;
PHEADER_802_11 pHeader;
UINT MsgLen;
BOOLEAN Cancelled;
UCHAR group_cipher = Ndis802_11WEPDisabled;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerPairMsg4Action\n"));
do
{
if ((!pEntry) || (!pEntry->ValidAsCLI))
break;
if (Elem->MsgLen < (LENGTH_802_11 + LENGTH_802_1_H + LENGTH_EAPOL_H + sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE - 2 ) )
break;
if (pEntry->WpaState < AS_PTKINIT_NEGOTIATING)
break;
// pointer to 802.11 header
pHeader = (PHEADER_802_11)Elem->Msg;
// skip 802.11_header(24-byte) and LLC_header(8)
pMsg4 = (PEAPOL_PACKET)&Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
MsgLen = Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H;
// Sanity Check peer Pairwise message 4 - Replay Counter, MIC
if (PeerWpaMessageSanity(pAd, pMsg4, MsgLen, EAPOL_PAIR_MSG_4, pEntry) == FALSE)
break;
// 3. uses the MLME.SETKEYS.request to configure PTK into MAC
NdisZeroMemory(&pEntry->PairwiseKey, sizeof(CIPHER_KEY));
// reset IVEIV in Asic
AsicUpdateWCIDIVEIV(pAd, pEntry->Aid, 1, 0);
pEntry->PairwiseKey.KeyLen = LEN_TKIP_EK;
NdisMoveMemory(pEntry->PairwiseKey.Key, &pEntry->PTK[32], LEN_TKIP_EK);
NdisMoveMemory(pEntry->PairwiseKey.RxMic, &pEntry->PTK[TKIP_AP_RXMICK_OFFSET], LEN_TKIP_RXMICK);
NdisMoveMemory(pEntry->PairwiseKey.TxMic, &pEntry->PTK[TKIP_AP_TXMICK_OFFSET], LEN_TKIP_TXMICK);
// Set pairwise key to Asic
{
pEntry->PairwiseKey.CipherAlg = CIPHER_NONE;
if (pEntry->WepStatus == Ndis802_11Encryption2Enabled)
pEntry->PairwiseKey.CipherAlg = CIPHER_TKIP;
else if (pEntry->WepStatus == Ndis802_11Encryption3Enabled)
pEntry->PairwiseKey.CipherAlg = CIPHER_AES;
// Add Pair-wise key to Asic
AsicAddPairwiseKeyEntry(
pAd,
pEntry->Addr,
(UCHAR)pEntry->Aid,
&pEntry->PairwiseKey);
// update WCID attribute table and IVEIV table for this entry
RTMPAddWcidAttributeEntry(
pAd,
pEntry->apidx,
0,
pEntry->PairwiseKey.CipherAlg,
pEntry);
}
// 4. upgrade state
pEntry->PrivacyFilter = Ndis802_11PrivFilterAcceptAll;
pEntry->WpaState = AS_PTKINITDONE;
pEntry->PortSecured = WPA_802_1X_PORT_SECURED;
if (pEntry->AuthMode == Ndis802_11AuthModeWPA2 ||
pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK)
{
pEntry->GTKState = REKEY_ESTABLISHED;
RTMPCancelTimer(&pEntry->RetryTimer, &Cancelled);
// send wireless event - for set key done WPA2
if (pAd->CommonCfg.bWirelessEvent)
RTMPSendWirelessEvent(pAd, IW_SET_KEY_DONE_WPA2_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
DBGPRINT(RT_DEBUG_OFF, ("AP SETKEYS DONE - WPA2, AuthMode(%d)=%s, WepStatus(%d)=%s, GroupWepStatus(%d)=%s\n\n",
pEntry->AuthMode, GetAuthMode(pEntry->AuthMode),
pEntry->WepStatus, GetEncryptType(pEntry->WepStatus),
group_cipher,
GetEncryptType(group_cipher)));
}
else
{
// 5. init Group 2-way handshake if necessary.
WPAStart2WayGroupHS(pAd, pEntry);
pEntry->ReTryCounter = GROUP_MSG1_RETRY_TIMER_CTR;
RTMPModTimer(&pEntry->RetryTimer, PEER_MSG3_RETRY_EXEC_INTV);
}
}while(FALSE);
}
/*
==========================================================================
Description:
This is a function to send the first packet of 2-way groupkey handshake
Return:
==========================================================================
*/
VOID WPAStart2WayGroupHS(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry)
{
UCHAR Header802_3[14];
UCHAR TxTsc[6];
EAPOL_PACKET EAPOLPKT;
UCHAR group_cipher = Ndis802_11WEPDisabled;
UCHAR default_key = 0;
PUINT8 gnonce_ptr = NULL;
PUINT8 gtk_ptr = NULL;
PUINT8 pBssid = NULL;
DBGPRINT(RT_DEBUG_TRACE, ("===> WPAStart2WayGroupHS\n"));
if ((!pEntry) || (!pEntry->ValidAsCLI))
return;
do
{
// Increment replay counter by 1
ADD_ONE_To_64BIT_VAR(pEntry->R_Counter);
// Construct EAPoL message - Group Msg 1
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_GROUP_MSG_1,
default_key,
(UCHAR *)gnonce_ptr,
TxTsc,
(UCHAR *)gtk_ptr,
NULL,
0,
&EAPOLPKT);
// Make outgoing frame
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pBssid, EAPOL);
RTMPToWirelessSta(pAd, pEntry,
Header802_3, LENGTH_802_3,
(PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4, FALSE);
}while (FALSE);
DBGPRINT(RT_DEBUG_TRACE, ("<=== WPAStart2WayGroupHS : send out Group Message 1 \n"));
return;
}
/*
========================================================================
Routine Description:
Process Group key 2-way handshaking
Arguments:
pAd Pointer to our adapter
Elem Message body
Return Value:
None
Note:
========================================================================
*/
VOID PeerGroupMsg1Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN MLME_QUEUE_ELEM *Elem)
{
UCHAR Header802_3[14];
EAPOL_PACKET EAPOLPKT;
PEAPOL_PACKET pGroup;
UINT MsgLen;
BOOLEAN Cancelled;
UCHAR default_key = 0;
UCHAR group_cipher = Ndis802_11WEPDisabled;
PUINT8 pCurrentAddr = NULL;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerGroupMsg1Action \n"));
if ((!pEntry) || ((!pEntry->ValidAsCLI) && (!pEntry->ValidAsApCli)))
return;
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
pCurrentAddr = pAd->CurrentAddress;
group_cipher = pAd->StaCfg.GroupCipher;
default_key = pAd->StaCfg.DefaultKeyId;
}
#endif // CONFIG_STA_SUPPORT //
// Process Group Message 1 frame. skip 802.11 header(24) & LLC_SNAP header(8)
pGroup = (PEAPOL_PACKET) &Elem->Msg[LENGTH_802_11 + LENGTH_802_1_H];
MsgLen = Elem->MsgLen - LENGTH_802_11 - LENGTH_802_1_H;
// Sanity Check peer group message 1 - Replay Counter, MIC, RSNIE
if (PeerWpaMessageSanity(pAd, pGroup, MsgLen, EAPOL_GROUP_MSG_1, pEntry) == FALSE)
return;
// delete retry timer
RTMPCancelTimer(&pEntry->RetryTimer, &Cancelled);
// Save Replay counter, it will use to construct message 2
NdisMoveMemory(pEntry->R_Counter, pGroup->KeyDesc.ReplayCounter, LEN_KEY_DESC_REPLAY);
// Construct EAPoL message - Group Msg 2
NdisZeroMemory(&EAPOLPKT, sizeof(EAPOL_PACKET));
ConstructEapolMsg(pEntry,
group_cipher,
EAPOL_GROUP_MSG_2,
default_key,
NULL, // Nonce not used
NULL, // TxRSC not used
NULL, // GTK not used
NULL, // RSN IE not used
0,
&EAPOLPKT);
// open 802.1x port control and privacy filter
pEntry->PortSecured = WPA_802_1X_PORT_SECURED;
pEntry->PrivacyFilter = Ndis802_11PrivFilterAcceptAll;
#ifdef CONFIG_STA_SUPPORT
STA_PORT_SECURED(pAd);
// Indicate Connected for GUI
pAd->IndicateMediaState = NdisMediaStateConnected;
#endif // CONFIG_STA_SUPPORT //
DBGPRINT(RT_DEBUG_TRACE, ("PeerGroupMsg1Action: AuthMode(%s) PairwiseCipher(%s) GroupCipher(%s) \n",
GetAuthMode(pEntry->AuthMode),
GetEncryptType(pEntry->WepStatus),
GetEncryptType(group_cipher)));
// init header and Fill Packet and send Msg 2 to authenticator
MAKE_802_3_HEADER(Header802_3, pEntry->Addr, pCurrentAddr, EAPOL);
RTMPToWirelessSta(pAd, pEntry,
Header802_3, sizeof(Header802_3),
(PUCHAR)&EAPOLPKT,
CONV_ARRARY_TO_UINT16(EAPOLPKT.Body_Len) + 4, FALSE);
DBGPRINT(RT_DEBUG_TRACE, ("<=== PeerGroupMsg1Action: sned group message 2\n"));
}
/*
==========================================================================
Description:
When receiving the last packet of 2-way groupkey handshake.
Return:
==========================================================================
*/
VOID PeerGroupMsg2Action(
IN PRTMP_ADAPTER pAd,
IN MAC_TABLE_ENTRY *pEntry,
IN VOID *Msg,
IN UINT MsgLen)
{
UINT Len;
PUCHAR pData;
BOOLEAN Cancelled;
PEAPOL_PACKET pMsg2;
UCHAR group_cipher = Ndis802_11WEPDisabled;
DBGPRINT(RT_DEBUG_TRACE, ("===> PeerGroupMsg2Action \n"));
do
{
if ((!pEntry) || (!pEntry->ValidAsCLI))
break;
if (MsgLen < (LENGTH_802_1_H + LENGTH_EAPOL_H + sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE - 2))
break;
if (pEntry->WpaState != AS_PTKINITDONE)
break;
pData = (PUCHAR)Msg;
pMsg2 = (PEAPOL_PACKET) (pData + LENGTH_802_1_H);
Len = MsgLen - LENGTH_802_1_H;
// Sanity Check peer group message 2 - Replay Counter, MIC
if (PeerWpaMessageSanity(pAd, pMsg2, Len, EAPOL_GROUP_MSG_2, pEntry) == FALSE)
break;
// 3. upgrade state
RTMPCancelTimer(&pEntry->RetryTimer, &Cancelled);
pEntry->GTKState = REKEY_ESTABLISHED;
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2) || (pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK))
{
// send wireless event - for set key done WPA2
if (pAd->CommonCfg.bWirelessEvent)
RTMPSendWirelessEvent(pAd, IW_SET_KEY_DONE_WPA2_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
DBGPRINT(RT_DEBUG_OFF, ("AP SETKEYS DONE - WPA2, AuthMode(%d)=%s, WepStatus(%d)=%s, GroupWepStatus(%d)=%s\n\n",
pEntry->AuthMode, GetAuthMode(pEntry->AuthMode),
pEntry->WepStatus, GetEncryptType(pEntry->WepStatus),
group_cipher, GetEncryptType(group_cipher)));
}
else
{
// send wireless event - for set key done WPA
if (pAd->CommonCfg.bWirelessEvent)
RTMPSendWirelessEvent(pAd, IW_SET_KEY_DONE_WPA1_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
DBGPRINT(RT_DEBUG_OFF, ("AP SETKEYS DONE - WPA1, AuthMode(%d)=%s, WepStatus(%d)=%s, GroupWepStatus(%d)=%s\n\n",
pEntry->AuthMode, GetAuthMode(pEntry->AuthMode),
pEntry->WepStatus, GetEncryptType(pEntry->WepStatus),
group_cipher, GetEncryptType(group_cipher)));
}
}while(FALSE);
}
/*
========================================================================
Routine Description:
Classify WPA EAP message type
Arguments:
EAPType Value of EAP message type
MsgType Internal Message definition for MLME state machine
Return Value:
TRUE Found appropriate message type
FALSE No appropriate message type
IRQL = DISPATCH_LEVEL
Note:
All these constants are defined in wpa.h
For supplicant, there is only EAPOL Key message avaliable
========================================================================
*/
BOOLEAN WpaMsgTypeSubst(
IN UCHAR EAPType,
OUT INT *MsgType)
{
switch (EAPType)
{
case EAPPacket:
*MsgType = MT2_EAPPacket;
break;
case EAPOLStart:
*MsgType = MT2_EAPOLStart;
break;
case EAPOLLogoff:
*MsgType = MT2_EAPOLLogoff;
break;
case EAPOLKey:
*MsgType = MT2_EAPOLKey;
break;
case EAPOLASFAlert:
*MsgType = MT2_EAPOLASFAlert;
break;
default:
return FALSE;
}
return TRUE;
}
/*
========================================================================
Routine Description:
The pseudo-random function(PRF) that hashes various inputs to
derive a pseudo-random value. To add liveness to the pseudo-random
value, a nonce should be one of the inputs.
It is used to generate PTK, GTK or some specific random value.
Arguments:
UCHAR *key, - the key material for HMAC_SHA1 use
INT key_len - the length of key
UCHAR *prefix - a prefix label
INT prefix_len - the length of the label
UCHAR *data - a specific data with variable length
INT data_len - the length of a specific data
INT len - the output lenght
Return Value:
UCHAR *output - the calculated result
Note:
802.11i-2004 Annex H.3
========================================================================
*/
VOID PRF(
IN UCHAR *key,
IN INT key_len,
IN UCHAR *prefix,
IN INT prefix_len,
IN UCHAR *data,
IN INT data_len,
OUT UCHAR *output,
IN INT len)
{
INT i;
UCHAR *input;
INT currentindex = 0;
INT total_len;
// Allocate memory for input
os_alloc_mem(NULL, (PUCHAR *)&input, 1024);
if (input == NULL)
{
DBGPRINT(RT_DEBUG_ERROR, ("!!!PRF: no memory!!!\n"));
return;
}
// Generate concatenation input
NdisMoveMemory(input, prefix, prefix_len);
// Concatenate a single octet containing 0
input[prefix_len] = 0;
// Concatenate specific data
NdisMoveMemory(&input[prefix_len + 1], data, data_len);
total_len = prefix_len + 1 + data_len;
// Concatenate a single octet containing 0
// This octet shall be update later
input[total_len] = 0;
total_len++;
// Iterate to calculate the result by hmac-sha-1
// Then concatenate to last result
for (i = 0; i < (len + 19) / 20; i++)
{
HMAC_SHA1(key, key_len, input, total_len, &output[currentindex], SHA1_DIGEST_SIZE);
currentindex += 20;
// update the last octet
input[total_len - 1]++;
}
os_free_mem(NULL, input);
}
/*
* F(P, S, c, i) = U1 xor U2 xor ... Uc
* U1 = PRF(P, S || Int(i))
* U2 = PRF(P, U1)
* Uc = PRF(P, Uc-1)
*/
static void F(char *password, unsigned char *ssid, int ssidlength, int iterations, int count, unsigned char *output)
{
unsigned char digest[36], digest1[SHA1_DIGEST_SIZE];
int i, j;
/* U1 = PRF(P, S || int(i)) */
memcpy(digest, ssid, ssidlength);
digest[ssidlength] = (unsigned char)((count>>24) & 0xff);
digest[ssidlength+1] = (unsigned char)((count>>16) & 0xff);
digest[ssidlength+2] = (unsigned char)((count>>8) & 0xff);
digest[ssidlength+3] = (unsigned char)(count & 0xff);
HMAC_SHA1((unsigned char*) password, (int) strlen(password), digest, ssidlength+4, digest1, SHA1_DIGEST_SIZE); // for WPA update
/* output = U1 */
memcpy(output, digest1, SHA1_DIGEST_SIZE);
for (i = 1; i < iterations; i++)
{
/* Un = PRF(P, Un-1) */
HMAC_SHA1((unsigned char*) password, (int) strlen(password), digest1, SHA1_DIGEST_SIZE, digest, SHA1_DIGEST_SIZE); // for WPA update
memcpy(digest1, digest, SHA1_DIGEST_SIZE);
/* output = output xor Un */
for (j = 0; j < SHA1_DIGEST_SIZE; j++)
{
output[j] ^= digest[j];
}
}
}
/*
* password - ascii string up to 63 characters in length
* ssid - octet string up to 32 octets
* ssidlength - length of ssid in octets
* output must be 40 octets in length and outputs 256 bits of key
*/
int PasswordHash(PSTRING password, PUCHAR ssid, INT ssidlength, PUCHAR output)
{
if ((strlen(password) > 63) || (ssidlength > 32))
return 0;
F(password, ssid, ssidlength, 4096, 1, output);
F(password, ssid, ssidlength, 4096, 2, &output[SHA1_DIGEST_SIZE]);
return 1;
}
/*
========================================================================
Routine Description:
It utilizes PRF-384 or PRF-512 to derive session-specific keys from a PMK.
It shall be called by 4-way handshake processing.
Arguments:
pAd - pointer to our pAdapter context
PMK - pointer to PMK
ANonce - pointer to ANonce
AA - pointer to Authenticator Address
SNonce - pointer to SNonce
SA - pointer to Supplicant Address
len - indicate the length of PTK (octet)
Return Value:
Output pointer to the PTK
Note:
Refer to IEEE 802.11i-2004 8.5.1.2
========================================================================
*/
VOID WpaDerivePTK(
IN PRTMP_ADAPTER pAd,
IN UCHAR *PMK,
IN UCHAR *ANonce,
IN UCHAR *AA,
IN UCHAR *SNonce,
IN UCHAR *SA,
OUT UCHAR *output,
IN UINT len)
{
UCHAR concatenation[76];
UINT CurrPos = 0;
UCHAR temp[32];
UCHAR Prefix[] = {'P', 'a', 'i', 'r', 'w', 'i', 's', 'e', ' ', 'k', 'e', 'y', ' ',
'e', 'x', 'p', 'a', 'n', 's', 'i', 'o', 'n'};
// initiate the concatenation input
NdisZeroMemory(temp, sizeof(temp));
NdisZeroMemory(concatenation, 76);
// Get smaller address
if (RTMPCompareMemory(SA, AA, 6) == 1)
NdisMoveMemory(concatenation, AA, 6);
else
NdisMoveMemory(concatenation, SA, 6);
CurrPos += 6;
// Get larger address
if (RTMPCompareMemory(SA, AA, 6) == 1)
NdisMoveMemory(&concatenation[CurrPos], SA, 6);
else
NdisMoveMemory(&concatenation[CurrPos], AA, 6);
// store the larger mac address for backward compatible of
// ralink proprietary STA-key issue
NdisMoveMemory(temp, &concatenation[CurrPos], MAC_ADDR_LEN);
CurrPos += 6;
// Get smaller Nonce
if (RTMPCompareMemory(ANonce, SNonce, 32) == 0)
NdisMoveMemory(&concatenation[CurrPos], temp, 32); // patch for ralink proprietary STA-key issue
else if (RTMPCompareMemory(ANonce, SNonce, 32) == 1)
NdisMoveMemory(&concatenation[CurrPos], SNonce, 32);
else
NdisMoveMemory(&concatenation[CurrPos], ANonce, 32);
CurrPos += 32;
// Get larger Nonce
if (RTMPCompareMemory(ANonce, SNonce, 32) == 0)
NdisMoveMemory(&concatenation[CurrPos], temp, 32); // patch for ralink proprietary STA-key issue
else if (RTMPCompareMemory(ANonce, SNonce, 32) == 1)
NdisMoveMemory(&concatenation[CurrPos], ANonce, 32);
else
NdisMoveMemory(&concatenation[CurrPos], SNonce, 32);
CurrPos += 32;
hex_dump("concatenation=", concatenation, 76);
// Use PRF to generate PTK
PRF(PMK, LEN_MASTER_KEY, Prefix, 22, concatenation, 76, output, len);
}
/*
========================================================================
Routine Description:
Generate random number by software.
Arguments:
pAd - pointer to our pAdapter context
macAddr - pointer to local MAC address
Return Value:
Note:
802.1ii-2004 Annex H.5
========================================================================
*/
VOID GenRandom(
IN PRTMP_ADAPTER pAd,
IN UCHAR *macAddr,
OUT UCHAR *random)
{
INT i, curr;
UCHAR local[80], KeyCounter[32];
UCHAR result[80];
ULONG CurrentTime;
UCHAR prefix[] = {'I', 'n', 'i', 't', ' ', 'C', 'o', 'u', 'n', 't', 'e', 'r'};
// Zero the related information
NdisZeroMemory(result, 80);
NdisZeroMemory(local, 80);
NdisZeroMemory(KeyCounter, 32);
for (i = 0; i < 32; i++)
{
// copy the local MAC address
COPY_MAC_ADDR(local, macAddr);
curr = MAC_ADDR_LEN;
// concatenate the current time
NdisGetSystemUpTime(&CurrentTime);
NdisMoveMemory(&local[curr], &CurrentTime, sizeof(CurrentTime));
curr += sizeof(CurrentTime);
// concatenate the last result
NdisMoveMemory(&local[curr], result, 32);
curr += 32;
// concatenate a variable
NdisMoveMemory(&local[curr], &i, 2);
curr += 2;
// calculate the result
PRF(KeyCounter, 32, prefix,12, local, curr, result, 32);
}
NdisMoveMemory(random, result, 32);
}
/*
========================================================================
Routine Description:
Build cipher suite in RSN-IE.
It only shall be called by RTMPMakeRSNIE.
Arguments:
pAd - pointer to our pAdapter context
ElementID - indicate the WPA1 or WPA2
WepStatus - indicate the encryption type
bMixCipher - a boolean to indicate the pairwise cipher and group
cipher are the same or not
Return Value:
Note:
========================================================================
*/
static VOID RTMPMakeRsnIeCipher(
IN PRTMP_ADAPTER pAd,
IN UCHAR ElementID,
IN UINT WepStatus,
IN BOOLEAN bMixCipher,
IN UCHAR FlexibleCipher,
OUT PUCHAR pRsnIe,
OUT UCHAR *rsn_len)
{
UCHAR PairwiseCnt;
*rsn_len = 0;
// decide WPA2 or WPA1
if (ElementID == Wpa2Ie)
{
RSNIE2 *pRsnie_cipher = (RSNIE2*)pRsnIe;
// Assign the verson as 1
pRsnie_cipher->version = 1;
switch (WepStatus)
{
// TKIP mode
case Ndis802_11Encryption2Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
pRsnie_cipher->ucount = 1;
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_TKIP, 4);
*rsn_len = sizeof(RSNIE2);
break;
// AES mode
case Ndis802_11Encryption3Enabled:
if (bMixCipher)
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
else
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_CCMP, 4);
pRsnie_cipher->ucount = 1;
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_CCMP, 4);
*rsn_len = sizeof(RSNIE2);
break;
// TKIP-AES mix mode
case Ndis802_11Encryption4Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_TKIP, 4);
PairwiseCnt = 1;
// Insert WPA2 TKIP as the first pairwise cipher
if (MIX_CIPHER_WPA2_TKIP_ON(FlexibleCipher))
{
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_TKIP, 4);
// Insert WPA2 AES as the secondary pairwise cipher
if (MIX_CIPHER_WPA2_AES_ON(FlexibleCipher))
{
NdisMoveMemory(pRsnie_cipher->ucast[0].oui + 4, OUI_WPA2_CCMP, 4);
PairwiseCnt = 2;
}
}
else
{
// Insert WPA2 AES as the first pairwise cipher
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA2_CCMP, 4);
}
pRsnie_cipher->ucount = PairwiseCnt;
*rsn_len = sizeof(RSNIE2) + (4 * (PairwiseCnt - 1));
break;
}
#ifdef CONFIG_STA_SUPPORT
if ((pAd->OpMode == OPMODE_STA) &&
(pAd->StaCfg.GroupCipher != Ndis802_11Encryption2Enabled) &&
(pAd->StaCfg.GroupCipher != Ndis802_11Encryption3Enabled))
{
UINT GroupCipher = pAd->StaCfg.GroupCipher;
switch(GroupCipher)
{
case Ndis802_11GroupWEP40Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_WEP40, 4);
break;
case Ndis802_11GroupWEP104Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA2_WEP104, 4);
break;
}
}
#endif // CONFIG_STA_SUPPORT //
// swap for big-endian platform
pRsnie_cipher->version = cpu2le16(pRsnie_cipher->version);
pRsnie_cipher->ucount = cpu2le16(pRsnie_cipher->ucount);
}
else
{
RSNIE *pRsnie_cipher = (RSNIE*)pRsnIe;
// Assign OUI and version
NdisMoveMemory(pRsnie_cipher->oui, OUI_WPA_VERSION, 4);
pRsnie_cipher->version = 1;
switch (WepStatus)
{
// TKIP mode
case Ndis802_11Encryption2Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
pRsnie_cipher->ucount = 1;
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_TKIP, 4);
*rsn_len = sizeof(RSNIE);
break;
// AES mode
case Ndis802_11Encryption3Enabled:
if (bMixCipher)
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
else
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_CCMP, 4);
pRsnie_cipher->ucount = 1;
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_CCMP, 4);
*rsn_len = sizeof(RSNIE);
break;
// TKIP-AES mix mode
case Ndis802_11Encryption4Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_TKIP, 4);
PairwiseCnt = 1;
// Insert WPA TKIP as the first pairwise cipher
if (MIX_CIPHER_WPA_TKIP_ON(FlexibleCipher))
{
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_TKIP, 4);
// Insert WPA AES as the secondary pairwise cipher
if (MIX_CIPHER_WPA_AES_ON(FlexibleCipher))
{
NdisMoveMemory(pRsnie_cipher->ucast[0].oui + 4, OUI_WPA_CCMP, 4);
PairwiseCnt = 2;
}
}
else
{
// Insert WPA AES as the first pairwise cipher
NdisMoveMemory(pRsnie_cipher->ucast[0].oui, OUI_WPA_CCMP, 4);
}
pRsnie_cipher->ucount = PairwiseCnt;
*rsn_len = sizeof(RSNIE) + (4 * (PairwiseCnt - 1));
break;
}
#ifdef CONFIG_STA_SUPPORT
if ((pAd->OpMode == OPMODE_STA) &&
(pAd->StaCfg.GroupCipher != Ndis802_11Encryption2Enabled) &&
(pAd->StaCfg.GroupCipher != Ndis802_11Encryption3Enabled))
{
UINT GroupCipher = pAd->StaCfg.GroupCipher;
switch(GroupCipher)
{
case Ndis802_11GroupWEP40Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_WEP40, 4);
break;
case Ndis802_11GroupWEP104Enabled:
NdisMoveMemory(pRsnie_cipher->mcast, OUI_WPA_WEP104, 4);
break;
}
}
#endif // CONFIG_STA_SUPPORT //
// swap for big-endian platform
pRsnie_cipher->version = cpu2le16(pRsnie_cipher->version);
pRsnie_cipher->ucount = cpu2le16(pRsnie_cipher->ucount);
}
}
/*
========================================================================
Routine Description:
Build AKM suite in RSN-IE.
It only shall be called by RTMPMakeRSNIE.
Arguments:
pAd - pointer to our pAdapter context
ElementID - indicate the WPA1 or WPA2
AuthMode - indicate the authentication mode
apidx - indicate the interface index
Return Value:
Note:
========================================================================
*/
static VOID RTMPMakeRsnIeAKM(
IN PRTMP_ADAPTER pAd,
IN UCHAR ElementID,
IN UINT AuthMode,
IN UCHAR apidx,
OUT PUCHAR pRsnIe,
OUT UCHAR *rsn_len)
{
RSNIE_AUTH *pRsnie_auth;
UCHAR AkmCnt = 1; // default as 1
pRsnie_auth = (RSNIE_AUTH*)(pRsnIe + (*rsn_len));
// decide WPA2 or WPA1
if (ElementID == Wpa2Ie)
{
switch (AuthMode)
{
case Ndis802_11AuthModeWPA2:
case Ndis802_11AuthModeWPA1WPA2:
NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA2_8021X_AKM, 4);
break;
case Ndis802_11AuthModeWPA2PSK:
case Ndis802_11AuthModeWPA1PSKWPA2PSK:
NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA2_PSK_AKM, 4);
break;
default:
AkmCnt = 0;
break;
}
}
else
{
switch (AuthMode)
{
case Ndis802_11AuthModeWPA:
case Ndis802_11AuthModeWPA1WPA2:
NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_8021X_AKM, 4);
break;
case Ndis802_11AuthModeWPAPSK:
case Ndis802_11AuthModeWPA1PSKWPA2PSK:
NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_PSK_AKM, 4);
break;
case Ndis802_11AuthModeWPANone:
NdisMoveMemory(pRsnie_auth->auth[0].oui, OUI_WPA_NONE_AKM, 4);
break;
default:
AkmCnt = 0;
break;
}
}
pRsnie_auth->acount = AkmCnt;
pRsnie_auth->acount = cpu2le16(pRsnie_auth->acount);
// update current RSNIE length
(*rsn_len) += (sizeof(RSNIE_AUTH) + (4 * (AkmCnt - 1)));
}
/*
========================================================================
Routine Description:
Build capability in RSN-IE.
It only shall be called by RTMPMakeRSNIE.
Arguments:
pAd - pointer to our pAdapter context
ElementID - indicate the WPA1 or WPA2
apidx - indicate the interface index
Return Value:
Note:
========================================================================
*/
static VOID RTMPMakeRsnIeCap(
IN PRTMP_ADAPTER pAd,
IN UCHAR ElementID,
IN UCHAR apidx,
OUT PUCHAR pRsnIe,
OUT UCHAR *rsn_len)
{
RSN_CAPABILITIES *pRSN_Cap;
// it could be ignored in WPA1 mode
if (ElementID == WpaIe)
return;
pRSN_Cap = (RSN_CAPABILITIES*)(pRsnIe + (*rsn_len));
pRSN_Cap->word = cpu2le16(pRSN_Cap->word);
(*rsn_len) += sizeof(RSN_CAPABILITIES); // update current RSNIE length
}
/*
========================================================================
Routine Description:
Build RSN IE context. It is not included element-ID and length.
Arguments:
pAd - pointer to our pAdapter context
AuthMode - indicate the authentication mode
WepStatus - indicate the encryption type
apidx - indicate the interface index
Return Value:
Note:
========================================================================
*/
VOID RTMPMakeRSNIE(
IN PRTMP_ADAPTER pAd,
IN UINT AuthMode,
IN UINT WepStatus,
IN UCHAR apidx)
{
PUCHAR pRsnIe = NULL; // primary RSNIE
UCHAR *rsnielen_cur_p = 0; // the length of the primary RSNIE
UCHAR *rsnielen_ex_cur_p = 0; // the length of the secondary RSNIE
UCHAR PrimaryRsnie;
BOOLEAN bMixCipher = FALSE; // indicate the pairwise and group cipher are different
UCHAR p_offset;
WPA_MIX_PAIR_CIPHER FlexibleCipher = WPA_TKIPAES_WPA2_TKIPAES; // it provide the more flexible cipher combination in WPA-WPA2 and TKIPAES mode
rsnielen_cur_p = NULL;
rsnielen_ex_cur_p = NULL;
{
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
#ifdef WPA_SUPPLICANT_SUPPORT
if (pAd->StaCfg.WpaSupplicantUP != WPA_SUPPLICANT_DISABLE)
{
if (AuthMode < Ndis802_11AuthModeWPA)
return;
}
else
#endif // WPA_SUPPLICANT_SUPPORT //
{
// Support WPAPSK or WPA2PSK in STA-Infra mode
// Support WPANone in STA-Adhoc mode
if ((AuthMode != Ndis802_11AuthModeWPAPSK) &&
(AuthMode != Ndis802_11AuthModeWPA2PSK) &&
(AuthMode != Ndis802_11AuthModeWPANone)
)
return;
}
DBGPRINT(RT_DEBUG_TRACE,("==> RTMPMakeRSNIE(STA)\n"));
// Zero RSNIE context
pAd->StaCfg.RSNIE_Len = 0;
NdisZeroMemory(pAd->StaCfg.RSN_IE, MAX_LEN_OF_RSNIE);
// Pointer to RSNIE
rsnielen_cur_p = &pAd->StaCfg.RSNIE_Len;
pRsnIe = pAd->StaCfg.RSN_IE;
bMixCipher = pAd->StaCfg.bMixCipher;
}
#endif // CONFIG_STA_SUPPORT //
}
// indicate primary RSNIE as WPA or WPA2
if ((AuthMode == Ndis802_11AuthModeWPA) ||
(AuthMode == Ndis802_11AuthModeWPAPSK) ||
(AuthMode == Ndis802_11AuthModeWPANone) ||
(AuthMode == Ndis802_11AuthModeWPA1WPA2) ||
(AuthMode == Ndis802_11AuthModeWPA1PSKWPA2PSK))
PrimaryRsnie = WpaIe;
else
PrimaryRsnie = Wpa2Ie;
{
// Build the primary RSNIE
// 1. insert cipher suite
RTMPMakeRsnIeCipher(pAd, PrimaryRsnie, WepStatus, bMixCipher, FlexibleCipher, pRsnIe, &p_offset);
// 2. insert AKM
RTMPMakeRsnIeAKM(pAd, PrimaryRsnie, AuthMode, apidx, pRsnIe, &p_offset);
// 3. insert capability
RTMPMakeRsnIeCap(pAd, PrimaryRsnie, apidx, pRsnIe, &p_offset);
}
// 4. update the RSNIE length
*rsnielen_cur_p = p_offset;
hex_dump("The primary RSNIE", pRsnIe, (*rsnielen_cur_p));
}
/*
==========================================================================
Description:
Check whether the received frame is EAP frame.
Arguments:
pAd - pointer to our pAdapter context
pEntry - pointer to active entry
pData - the received frame
DataByteCount - the received frame's length
FromWhichBSSID - indicate the interface index
Return:
TRUE - This frame is EAP frame
FALSE - otherwise
==========================================================================
*/
BOOLEAN RTMPCheckWPAframe(
IN PRTMP_ADAPTER pAd,
IN PMAC_TABLE_ENTRY pEntry,
IN PUCHAR pData,
IN ULONG DataByteCount,
IN UCHAR FromWhichBSSID)
{
ULONG Body_len;
BOOLEAN Cancelled;
if(DataByteCount < (LENGTH_802_1_H + LENGTH_EAPOL_H))
return FALSE;
// Skip LLC header
if (NdisEqualMemory(SNAP_802_1H, pData, 6) ||
// Cisco 1200 AP may send packet with SNAP_BRIDGE_TUNNEL
NdisEqualMemory(SNAP_BRIDGE_TUNNEL, pData, 6))
{
pData += 6;
}
// Skip 2-bytes EAPoL type
if (NdisEqualMemory(EAPOL, pData, 2))
// if (*(UINT16 *)EAPOL == *(UINT16 *)pData)
{
pData += 2;
}
else
return FALSE;
switch (*(pData+1))
{
case EAPPacket:
Body_len = (*(pData+2)<<8) | (*(pData+3));
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAP-Packet frame, TYPE = 0, Length = %ld\n", Body_len));
break;
case EAPOLStart:
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOL-Start frame, TYPE = 1 \n"));
if (pEntry->EnqueueEapolStartTimerRunning != EAPOL_START_DISABLE)
{
DBGPRINT(RT_DEBUG_TRACE, ("Cancel the EnqueueEapolStartTimerRunning \n"));
RTMPCancelTimer(&pEntry->EnqueueStartForPSKTimer, &Cancelled);
pEntry->EnqueueEapolStartTimerRunning = EAPOL_START_DISABLE;
}
break;
case EAPOLLogoff:
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOLLogoff frame, TYPE = 2 \n"));
break;
case EAPOLKey:
Body_len = (*(pData+2)<<8) | (*(pData+3));
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOL-Key frame, TYPE = 3, Length = %ld\n", Body_len));
break;
case EAPOLASFAlert:
DBGPRINT(RT_DEBUG_TRACE, ("Receive EAPOLASFAlert frame, TYPE = 4 \n"));
break;
default:
return FALSE;
}
return TRUE;
}
/*
==========================================================================
Description:
Report the EAP message type
Arguments:
msg - EAPOL_PAIR_MSG_1
EAPOL_PAIR_MSG_2
EAPOL_PAIR_MSG_3
EAPOL_PAIR_MSG_4
EAPOL_GROUP_MSG_1
EAPOL_GROUP_MSG_2
Return:
message type string
==========================================================================
*/
PSTRING GetEapolMsgType(CHAR msg)
{
if(msg == EAPOL_PAIR_MSG_1)
return "Pairwise Message 1";
else if(msg == EAPOL_PAIR_MSG_2)
return "Pairwise Message 2";
else if(msg == EAPOL_PAIR_MSG_3)
return "Pairwise Message 3";
else if(msg == EAPOL_PAIR_MSG_4)
return "Pairwise Message 4";
else if(msg == EAPOL_GROUP_MSG_1)
return "Group Message 1";
else if(msg == EAPOL_GROUP_MSG_2)
return "Group Message 2";
else
return "Invalid Message";
}
/*
========================================================================
Routine Description:
Check Sanity RSN IE of EAPoL message
Arguments:
Return Value:
========================================================================
*/
BOOLEAN RTMPCheckRSNIE(
IN PRTMP_ADAPTER pAd,
IN PUCHAR pData,
IN UCHAR DataLen,
IN MAC_TABLE_ENTRY *pEntry,
OUT UCHAR *Offset)
{
PUCHAR pVIE;
UCHAR len;
PEID_STRUCT pEid;
BOOLEAN result = FALSE;
pVIE = pData;
len = DataLen;
*Offset = 0;
while (len > sizeof(RSNIE2))
{
pEid = (PEID_STRUCT) pVIE;
// WPA RSN IE
if ((pEid->Eid == IE_WPA) && (NdisEqualMemory(pEid->Octet, WPA_OUI, 4)))
{
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA || pEntry->AuthMode == Ndis802_11AuthModeWPAPSK) &&
(NdisEqualMemory(pVIE, pEntry->RSN_IE, pEntry->RSNIE_Len)) &&
(pEntry->RSNIE_Len == (pEid->Len + 2)))
{
result = TRUE;
}
*Offset += (pEid->Len + 2);
}
// WPA2 RSN IE
else if ((pEid->Eid == IE_RSN) && (NdisEqualMemory(pEid->Octet + 2, RSN_OUI, 3)))
{
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2 || pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK) &&
(pEid->Eid == pEntry->RSN_IE[0]) &&
((pEid->Len + 2) >= pEntry->RSNIE_Len) &&
(NdisEqualMemory(pEid->Octet, &pEntry->RSN_IE[2], pEntry->RSNIE_Len - 2)))
{
result = TRUE;
}
*Offset += (pEid->Len + 2);
}
else
{
break;
}
pVIE += (pEid->Len + 2);
len -= (pEid->Len + 2);
}
return result;
}
/*
========================================================================
Routine Description:
Parse KEYDATA field. KEYDATA[] May contain 2 RSN IE and optionally GTK.
GTK is encaptulated in KDE format at p.83 802.11i D10
Arguments:
Return Value:
Note:
802.11i D10
========================================================================
*/
BOOLEAN RTMPParseEapolKeyData(
IN PRTMP_ADAPTER pAd,
IN PUCHAR pKeyData,
IN UCHAR KeyDataLen,
IN UCHAR GroupKeyIndex,
IN UCHAR MsgType,
IN BOOLEAN bWPA2,
IN MAC_TABLE_ENTRY *pEntry)
{
PKDE_ENCAP pKDE = NULL;
PUCHAR pMyKeyData = pKeyData;
UCHAR KeyDataLength = KeyDataLen;
UCHAR GTKLEN = 0;
UCHAR DefaultIdx = 0;
UCHAR skip_offset;
// Verify The RSN IE contained in pairewise_msg_2 && pairewise_msg_3 and skip it
if (MsgType == EAPOL_PAIR_MSG_2 || MsgType == EAPOL_PAIR_MSG_3)
{
// Check RSN IE whether it is WPA2/WPA2PSK
if (!RTMPCheckRSNIE(pAd, pKeyData, KeyDataLen, pEntry, &skip_offset))
{
// send wireless event - for RSN IE different
if (pAd->CommonCfg.bWirelessEvent)
RTMPSendWirelessEvent(pAd, IW_RSNIE_DIFF_EVENT_FLAG, pEntry->Addr, pEntry->apidx, 0);
DBGPRINT(RT_DEBUG_ERROR, ("RSN_IE Different in msg %d of 4-way handshake!\n", MsgType));
hex_dump("Receive RSN_IE ", pKeyData, KeyDataLen);
hex_dump("Desired RSN_IE ", pEntry->RSN_IE, pEntry->RSNIE_Len);
return FALSE;
}
else
{
if (bWPA2 && MsgType == EAPOL_PAIR_MSG_3)
{
WpaShowAllsuite(pMyKeyData, skip_offset);
// skip RSN IE
pMyKeyData += skip_offset;
KeyDataLength -= skip_offset;
DBGPRINT(RT_DEBUG_TRACE, ("RTMPParseEapolKeyData ==> WPA2/WPA2PSK RSN IE matched in Msg 3, Length(%d) \n", skip_offset));
}
else
return TRUE;
}
}
DBGPRINT(RT_DEBUG_TRACE,("RTMPParseEapolKeyData ==> KeyDataLength %d without RSN_IE \n", KeyDataLength));
//hex_dump("remain data", pMyKeyData, KeyDataLength);
// Parse EKD format in pairwise_msg_3_WPA2 && group_msg_1_WPA2
if (bWPA2 && (MsgType == EAPOL_PAIR_MSG_3 || MsgType == EAPOL_GROUP_MSG_1))
{
if (KeyDataLength >= 8) // KDE format exclude GTK length
{
pKDE = (PKDE_ENCAP) pMyKeyData;
DefaultIdx = pKDE->GTKEncap.Kid;
// Sanity check - KED length
if (KeyDataLength < (pKDE->Len + 2))
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR: The len from KDE is too short \n"));
return FALSE;
}
// Get GTK length - refer to IEEE 802.11i-2004 p.82
GTKLEN = pKDE->Len -6;
if (GTKLEN < LEN_AES_KEY)
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR: GTK Key length is too short (%d) \n", GTKLEN));
return FALSE;
}
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR: KDE format length is too short \n"));
return FALSE;
}
DBGPRINT(RT_DEBUG_TRACE, ("GTK in KDE format ,DefaultKeyID=%d, KeyLen=%d \n", DefaultIdx, GTKLEN));
// skip it
pMyKeyData += 8;
KeyDataLength -= 8;
}
else if (!bWPA2 && MsgType == EAPOL_GROUP_MSG_1)
{
DefaultIdx = GroupKeyIndex;
DBGPRINT(RT_DEBUG_TRACE, ("GTK DefaultKeyID=%d \n", DefaultIdx));
}
// Sanity check - shared key index must be 1 ~ 3
if (DefaultIdx < 1 || DefaultIdx > 3)
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR: GTK Key index(%d) is invalid in %s %s \n", DefaultIdx, ((bWPA2) ? "WPA2" : "WPA"), GetEapolMsgType(MsgType)));
return FALSE;
}
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
{
PCIPHER_KEY pSharedKey;
// set key material, TxMic and RxMic
NdisMoveMemory(pAd->StaCfg.GTK, pMyKeyData, 32);
pAd->StaCfg.DefaultKeyId = DefaultIdx;
pSharedKey = &pAd->SharedKey[BSS0][pAd->StaCfg.DefaultKeyId];
// Prepare pair-wise key information into shared key table
NdisZeroMemory(pSharedKey, sizeof(CIPHER_KEY));
pSharedKey->KeyLen = LEN_TKIP_EK;
NdisMoveMemory(pSharedKey->Key, pAd->StaCfg.GTK, LEN_TKIP_EK);
NdisMoveMemory(pSharedKey->RxMic, &pAd->StaCfg.GTK[16], LEN_TKIP_RXMICK);
NdisMoveMemory(pSharedKey->TxMic, &pAd->StaCfg.GTK[24], LEN_TKIP_TXMICK);
// Update Shared Key CipherAlg
pSharedKey->CipherAlg = CIPHER_NONE;
if (pAd->StaCfg.GroupCipher == Ndis802_11Encryption2Enabled)
pSharedKey->CipherAlg = CIPHER_TKIP;
else if (pAd->StaCfg.GroupCipher == Ndis802_11Encryption3Enabled)
pSharedKey->CipherAlg = CIPHER_AES;
else if (pAd->StaCfg.GroupCipher == Ndis802_11GroupWEP40Enabled)
pSharedKey->CipherAlg = CIPHER_WEP64;
else if (pAd->StaCfg.GroupCipher == Ndis802_11GroupWEP104Enabled)
pSharedKey->CipherAlg = CIPHER_WEP128;
// Update group key information to ASIC Shared Key Table
AsicAddSharedKeyEntry(pAd,
BSS0,
pAd->StaCfg.DefaultKeyId,
pSharedKey->CipherAlg,
pSharedKey->Key,
pSharedKey->TxMic,
pSharedKey->RxMic);
// Update ASIC WCID attribute table and IVEIV table
RTMPAddWcidAttributeEntry(pAd,
BSS0,
pAd->StaCfg.DefaultKeyId,
pSharedKey->CipherAlg,
NULL);
}
#endif // CONFIG_STA_SUPPORT //
return TRUE;
}
/*
========================================================================
Routine Description:
Construct EAPoL message for WPA handshaking
Its format is below,
+--------------------+
| Protocol Version | 1 octet
+--------------------+
| Protocol Type | 1 octet
+--------------------+
| Body Length | 2 octets
+--------------------+
| Descriptor Type | 1 octet
+--------------------+
| Key Information | 2 octets
+--------------------+
| Key Length | 1 octet
+--------------------+
| Key Repaly Counter | 8 octets
+--------------------+
| Key Nonce | 32 octets
+--------------------+
| Key IV | 16 octets
+--------------------+
| Key RSC | 8 octets
+--------------------+
| Key ID or Reserved | 8 octets
+--------------------+
| Key MIC | 16 octets
+--------------------+
| Key Data Length | 2 octets
+--------------------+
| Key Data | n octets
+--------------------+
Arguments:
pAd Pointer to our adapter
Return Value:
None
Note:
========================================================================
*/
VOID ConstructEapolMsg(
IN PMAC_TABLE_ENTRY pEntry,
IN UCHAR GroupKeyWepStatus,
IN UCHAR MsgType,
IN UCHAR DefaultKeyIdx,
IN UCHAR *KeyNonce,
IN UCHAR *TxRSC,
IN UCHAR *GTK,
IN UCHAR *RSNIE,
IN UCHAR RSNIE_Len,
OUT PEAPOL_PACKET pMsg)
{
BOOLEAN bWPA2 = FALSE;
UCHAR KeyDescVer;
// Choose WPA2 or not
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2) ||
(pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK))
bWPA2 = TRUE;
// Init Packet and Fill header
pMsg->ProVer = EAPOL_VER;
pMsg->ProType = EAPOLKey;
// Default 95 bytes, the EAPoL-Key descriptor exclude Key-data field
SET_UINT16_TO_ARRARY(pMsg->Body_Len, LEN_EAPOL_KEY_MSG);
// Fill in EAPoL descriptor
if (bWPA2)
pMsg->KeyDesc.Type = WPA2_KEY_DESC;
else
pMsg->KeyDesc.Type = WPA1_KEY_DESC;
// Key Descriptor Version (bits 0-2) specifies the key descriptor version type
{
// Fill in Key information, refer to IEEE Std 802.11i-2004 page 78
// When either the pairwise or the group cipher is AES, the DESC_TYPE_AES(2) shall be used.
KeyDescVer = (((pEntry->WepStatus == Ndis802_11Encryption3Enabled) ||
(GroupKeyWepStatus == Ndis802_11Encryption3Enabled)) ? (DESC_TYPE_AES) : (DESC_TYPE_TKIP));
}
pMsg->KeyDesc.KeyInfo.KeyDescVer = KeyDescVer;
// Specify Key Type as Group(0) or Pairwise(1)
if (MsgType >= EAPOL_GROUP_MSG_1)
pMsg->KeyDesc.KeyInfo.KeyType = GROUPKEY;
else
pMsg->KeyDesc.KeyInfo.KeyType = PAIRWISEKEY;
// Specify Key Index, only group_msg1_WPA1
if (!bWPA2 && (MsgType >= EAPOL_GROUP_MSG_1))
pMsg->KeyDesc.KeyInfo.KeyIndex = DefaultKeyIdx;
if (MsgType == EAPOL_PAIR_MSG_3)
pMsg->KeyDesc.KeyInfo.Install = 1;
if ((MsgType == EAPOL_PAIR_MSG_1) || (MsgType == EAPOL_PAIR_MSG_3) || (MsgType == EAPOL_GROUP_MSG_1))
pMsg->KeyDesc.KeyInfo.KeyAck = 1;
if (MsgType != EAPOL_PAIR_MSG_1)
pMsg->KeyDesc.KeyInfo.KeyMic = 1;
if ((bWPA2 && (MsgType >= EAPOL_PAIR_MSG_3)) ||
(!bWPA2 && (MsgType >= EAPOL_GROUP_MSG_1)))
{
pMsg->KeyDesc.KeyInfo.Secure = 1;
}
if (bWPA2 && ((MsgType == EAPOL_PAIR_MSG_3) ||
(MsgType == EAPOL_GROUP_MSG_1)))
{
pMsg->KeyDesc.KeyInfo.EKD_DL = 1;
}
// key Information element has done.
*(USHORT *)(&pMsg->KeyDesc.KeyInfo) = cpu2le16(*(USHORT *)(&pMsg->KeyDesc.KeyInfo));
// Fill in Key Length
{
if (MsgType >= EAPOL_GROUP_MSG_1)
{
// the length of group key cipher
pMsg->KeyDesc.KeyLength[1] = ((GroupKeyWepStatus == Ndis802_11Encryption2Enabled) ? TKIP_GTK_LENGTH : LEN_AES_KEY);
}
else
{
// the length of pairwise key cipher
pMsg->KeyDesc.KeyLength[1] = ((pEntry->WepStatus == Ndis802_11Encryption2Enabled) ? LEN_TKIP_KEY : LEN_AES_KEY);
}
}
// Fill in replay counter
NdisMoveMemory(pMsg->KeyDesc.ReplayCounter, pEntry->R_Counter, LEN_KEY_DESC_REPLAY);
// Fill Key Nonce field
// ANonce : pairwise_msg1 & pairwise_msg3
// SNonce : pairwise_msg2
// GNonce : group_msg1_wpa1
if ((MsgType <= EAPOL_PAIR_MSG_3) || ((!bWPA2 && (MsgType == EAPOL_GROUP_MSG_1))))
NdisMoveMemory(pMsg->KeyDesc.KeyNonce, KeyNonce, LEN_KEY_DESC_NONCE);
// Fill key IV - WPA2 as 0, WPA1 as random
if (!bWPA2 && (MsgType == EAPOL_GROUP_MSG_1))
{
// Suggest IV be random number plus some number,
NdisMoveMemory(pMsg->KeyDesc.KeyIv, &KeyNonce[16], LEN_KEY_DESC_IV);
pMsg->KeyDesc.KeyIv[15] += 2;
}
// Fill Key RSC field
// It contains the RSC for the GTK being installed.
if ((MsgType == EAPOL_PAIR_MSG_3 && bWPA2) || (MsgType == EAPOL_GROUP_MSG_1))
{
NdisMoveMemory(pMsg->KeyDesc.KeyRsc, TxRSC, 6);
}
// Clear Key MIC field for MIC calculation later
NdisZeroMemory(pMsg->KeyDesc.KeyMic, LEN_KEY_DESC_MIC);
ConstructEapolKeyData(pEntry,
GroupKeyWepStatus,
KeyDescVer,
MsgType,
DefaultKeyIdx,
GTK,
RSNIE,
RSNIE_Len,
pMsg);
// Calculate MIC and fill in KeyMic Field except Pairwise Msg 1.
if (MsgType != EAPOL_PAIR_MSG_1)
{
CalculateMIC(KeyDescVer, pEntry->PTK, pMsg);
}
DBGPRINT(RT_DEBUG_TRACE, ("===> ConstructEapolMsg for %s %s\n", ((bWPA2) ? "WPA2" : "WPA"), GetEapolMsgType(MsgType)));
DBGPRINT(RT_DEBUG_TRACE, (" Body length = %d \n", CONV_ARRARY_TO_UINT16(pMsg->Body_Len)));
DBGPRINT(RT_DEBUG_TRACE, (" Key length = %d \n", CONV_ARRARY_TO_UINT16(pMsg->KeyDesc.KeyLength)));
}
/*
========================================================================
Routine Description:
Construct the Key Data field of EAPoL message
Arguments:
pAd Pointer to our adapter
Elem Message body
Return Value:
None
Note:
========================================================================
*/
VOID ConstructEapolKeyData(
IN PMAC_TABLE_ENTRY pEntry,
IN UCHAR GroupKeyWepStatus,
IN UCHAR keyDescVer,
IN UCHAR MsgType,
IN UCHAR DefaultKeyIdx,
IN UCHAR *GTK,
IN UCHAR *RSNIE,
IN UCHAR RSNIE_LEN,
OUT PEAPOL_PACKET pMsg)
{
UCHAR *mpool, *Key_Data, *Rc4GTK;
UCHAR ekey[(LEN_KEY_DESC_IV+LEN_EAP_EK)];
ULONG data_offset;
BOOLEAN bWPA2Capable = FALSE;
PRTMP_ADAPTER pAd = pEntry->pAd;
BOOLEAN GTK_Included = FALSE;
// Choose WPA2 or not
if ((pEntry->AuthMode == Ndis802_11AuthModeWPA2) ||
(pEntry->AuthMode == Ndis802_11AuthModeWPA2PSK))
bWPA2Capable = TRUE;
if (MsgType == EAPOL_PAIR_MSG_1 ||
MsgType == EAPOL_PAIR_MSG_4 ||
MsgType == EAPOL_GROUP_MSG_2)
return;
// allocate memory pool
os_alloc_mem(NULL, (PUCHAR *)&mpool, 1500);
if (mpool == NULL)
return;
/* Rc4GTK Len = 512 */
Rc4GTK = (UCHAR *) ROUND_UP(mpool, 4);
/* Key_Data Len = 512 */
Key_Data = (UCHAR *) ROUND_UP(Rc4GTK + 512, 4);
NdisZeroMemory(Key_Data, 512);
SET_UINT16_TO_ARRARY(pMsg->KeyDesc.KeyDataLen, 0);
data_offset = 0;
// Encapsulate RSNIE in pairwise_msg2 & pairwise_msg3
if (RSNIE_LEN && ((MsgType == EAPOL_PAIR_MSG_2) || (MsgType == EAPOL_PAIR_MSG_3)))
{
PUINT8 pmkid_ptr = NULL;
UINT8 pmkid_len = 0;
RTMPInsertRSNIE(&Key_Data[data_offset],
(PULONG)&data_offset,
RSNIE,
RSNIE_LEN,
pmkid_ptr,
pmkid_len);
}
// Encapsulate KDE format in pairwise_msg3_WPA2 & group_msg1_WPA2
if (bWPA2Capable && ((MsgType == EAPOL_PAIR_MSG_3) || (MsgType == EAPOL_GROUP_MSG_1)))
{
// Key Data Encapsulation (KDE) format - 802.11i-2004 Figure-43w and Table-20h
Key_Data[data_offset + 0] = 0xDD;
if (GroupKeyWepStatus == Ndis802_11Encryption3Enabled)
{
Key_Data[data_offset + 1] = 0x16;// 4+2+16(OUI+DataType+DataField)
}
else
{
Key_Data[data_offset + 1] = 0x26;// 4+2+32(OUI+DataType+DataField)
}
Key_Data[data_offset + 2] = 0x00;
Key_Data[data_offset + 3] = 0x0F;
Key_Data[data_offset + 4] = 0xAC;
Key_Data[data_offset + 5] = 0x01;
// GTK KDE format - 802.11i-2004 Figure-43x
Key_Data[data_offset + 6] = (DefaultKeyIdx & 0x03);
Key_Data[data_offset + 7] = 0x00; // Reserved Byte
data_offset += 8;
}
// Encapsulate GTK
// Only for pairwise_msg3_WPA2 and group_msg1
if ((MsgType == EAPOL_PAIR_MSG_3 && bWPA2Capable) || (MsgType == EAPOL_GROUP_MSG_1))
{
// Fill in GTK
if (GroupKeyWepStatus == Ndis802_11Encryption3Enabled)
{
NdisMoveMemory(&Key_Data[data_offset], GTK, LEN_AES_KEY);
data_offset += LEN_AES_KEY;
}
else
{
NdisMoveMemory(&Key_Data[data_offset], GTK, TKIP_GTK_LENGTH);
data_offset += TKIP_GTK_LENGTH;
}
GTK_Included = TRUE;
}
// This whole key-data field shall be encrypted if a GTK is included.
// Encrypt the data material in key data field with KEK
if (GTK_Included)
{
//hex_dump("GTK_Included", Key_Data, data_offset);
if (
(keyDescVer == DESC_TYPE_AES))
{
UCHAR remainder = 0;
UCHAR pad_len = 0;
// Key Descriptor Version 2 or 3: AES key wrap, defined in IETF RFC 3394,
// shall be used to encrypt the Key Data field using the KEK field from
// the derived PTK.
// If the Key Data field uses the NIST AES key wrap, then the Key Data field
// shall be padded before encrypting if the key data length is less than 16
// octets or if it is not a multiple of 8. The padding consists of appending
// a single octet 0xdd followed by zero or more 0x00 octets.
if ((remainder = data_offset & 0x07) != 0)
{
INT i;
pad_len = (8 - remainder);
Key_Data[data_offset] = 0xDD;
for (i = 1; i < pad_len; i++)
Key_Data[data_offset + i] = 0;
data_offset += pad_len;
}
AES_GTK_KEY_WRAP(&pEntry->PTK[16], Key_Data, data_offset, Rc4GTK);
// AES wrap function will grow 8 bytes in length
data_offset += 8;
}
else
{
/* Key Descriptor Version 1: ARC4 is used to encrypt the Key Data field
using the KEK field from the derived PTK. */
// PREPARE Encrypted "Key DATA" field. (Encrypt GTK with RC4, usinf PTK[16]->[31] as Key, IV-field as IV)
// put TxTsc in Key RSC field
pAd->PrivateInfo.FCSCRC32 = PPPINITFCS32; //Init crc32.
// ekey is the contanetion of IV-field, and PTK[16]->PTK[31]
NdisMoveMemory(ekey, pMsg->KeyDesc.KeyIv, LEN_KEY_DESC_IV);
NdisMoveMemory(&ekey[LEN_KEY_DESC_IV], &pEntry->PTK[16], LEN_EAP_EK);
ARCFOUR_INIT(&pAd->PrivateInfo.WEPCONTEXT, ekey, sizeof(ekey)); //INIT SBOX, KEYLEN+3(IV)
pAd->PrivateInfo.FCSCRC32 = RTMP_CALC_FCS32(pAd->PrivateInfo.FCSCRC32, Key_Data, data_offset);
WPAARCFOUR_ENCRYPT(&pAd->PrivateInfo.WEPCONTEXT, Rc4GTK, Key_Data, data_offset);
}
NdisMoveMemory(pMsg->KeyDesc.KeyData, Rc4GTK, data_offset);
}
else
{
NdisMoveMemory(pMsg->KeyDesc.KeyData, Key_Data, data_offset);
}
// Update key data length field and total body length
SET_UINT16_TO_ARRARY(pMsg->KeyDesc.KeyDataLen, data_offset);
INC_UINT16_TO_ARRARY(pMsg->Body_Len, data_offset);
os_free_mem(NULL, mpool);
}
/*
========================================================================
Routine Description:
Calcaulate MIC. It is used during 4-ways handsharking.
Arguments:
pAd - pointer to our pAdapter context
PeerWepStatus - indicate the encryption type
Return Value:
Note:
========================================================================
*/
static VOID CalculateMIC(
IN UCHAR KeyDescVer,
IN UCHAR *PTK,
OUT PEAPOL_PACKET pMsg)
{
UCHAR *OutBuffer;
ULONG FrameLen = 0;
UCHAR mic[LEN_KEY_DESC_MIC];
UCHAR digest[80];
// allocate memory for MIC calculation
os_alloc_mem(NULL, (PUCHAR *)&OutBuffer, 512);
if (OutBuffer == NULL)
{
DBGPRINT(RT_DEBUG_ERROR, ("!!!CalculateMIC: no memory!!!\n"));
return;
}
// make a frame for calculating MIC.
MakeOutgoingFrame(OutBuffer, &FrameLen,
CONV_ARRARY_TO_UINT16(pMsg->Body_Len) + 4, pMsg,
END_OF_ARGS);
NdisZeroMemory(mic, sizeof(mic));
// Calculate MIC
if (KeyDescVer == DESC_TYPE_AES)
{
HMAC_SHA1(PTK, LEN_EAP_MICK, OutBuffer, FrameLen, digest, SHA1_DIGEST_SIZE);
NdisMoveMemory(mic, digest, LEN_KEY_DESC_MIC);
}
else
{
HMAC_MD5(PTK, LEN_EAP_MICK, OutBuffer, FrameLen, mic, MD5_DIGEST_SIZE);
}
// store the calculated MIC
NdisMoveMemory(pMsg->KeyDesc.KeyMic, mic, LEN_KEY_DESC_MIC);
os_free_mem(NULL, OutBuffer);
}
/*
========================================================================
Routine Description:
Some received frames can't decrypt by Asic, so decrypt them by software.
Arguments:
pAd - pointer to our pAdapter context
PeerWepStatus - indicate the encryption type
Return Value:
NDIS_STATUS_SUCCESS - decryption successful
NDIS_STATUS_FAILURE - decryption failure
========================================================================
*/
NDIS_STATUS RTMPSoftDecryptBroadCastData(
IN PRTMP_ADAPTER pAd,
IN RX_BLK *pRxBlk,
IN NDIS_802_11_ENCRYPTION_STATUS GroupCipher,
IN PCIPHER_KEY pShard_key)
{
PRXWI_STRUC pRxWI = pRxBlk->pRxWI;
// handle WEP decryption
if (GroupCipher == Ndis802_11Encryption1Enabled)
{
if (RTMPSoftDecryptWEP(pAd, pRxBlk->pData, pRxWI->MPDUtotalByteCount, pShard_key))
{
//Minus IV[4] & ICV[4]
pRxWI->MPDUtotalByteCount -= 8;
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR : Software decrypt WEP data fails.\n"));
// give up this frame
return NDIS_STATUS_FAILURE;
}
}
// handle TKIP decryption
else if (GroupCipher == Ndis802_11Encryption2Enabled)
{
if (RTMPSoftDecryptTKIP(pAd, pRxBlk->pData, pRxWI->MPDUtotalByteCount, 0, pShard_key))
{
//Minus 8 bytes MIC, 8 bytes IV/EIV, 4 bytes ICV
pRxWI->MPDUtotalByteCount -= 20;
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR : RTMPSoftDecryptTKIP Failed\n"));
// give up this frame
return NDIS_STATUS_FAILURE;
}
}
// handle AES decryption
else if (GroupCipher == Ndis802_11Encryption3Enabled)
{
if (RTMPSoftDecryptAES(pAd, pRxBlk->pData, pRxWI->MPDUtotalByteCount , pShard_key))
{
//8 bytes MIC, 8 bytes IV/EIV (CCMP Header)
pRxWI->MPDUtotalByteCount -= 16;
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("ERROR : RTMPSoftDecryptAES Failed\n"));
// give up this frame
return NDIS_STATUS_FAILURE;
}
}
else
{
// give up this frame
return NDIS_STATUS_FAILURE;
}
return NDIS_STATUS_SUCCESS;
}
PUINT8 GetSuiteFromRSNIE(
IN PUINT8 rsnie,
IN UINT rsnie_len,
IN UINT8 type,
OUT UINT8 *count)
{
PEID_STRUCT pEid;
INT len;
PUINT8 pBuf;
INT offset = 0;
PRSNIE_AUTH pAkm;
UINT16 acount;
BOOLEAN isWPA2 = FALSE;
pEid = (PEID_STRUCT)rsnie;
len = rsnie_len - 2; // exclude IE and length
pBuf = (PUINT8)&pEid->Octet[0];
// set default value
*count = 0;
// Check length
if ((len <= 0) || (pEid->Len != len))
{
DBGPRINT_ERR(("%s : The length is invalid\n", __FUNCTION__));
return NULL;
}
// Check WPA or WPA2
if (pEid->Eid == IE_WPA)
{
PRSNIE pRsnie = (PRSNIE)pBuf;
UINT16 ucount;
if (len < sizeof(RSNIE))
{
DBGPRINT_ERR(("%s : The length is too short for WPA\n", __FUNCTION__));
return NULL;
}
// Get the count of pairwise cipher
ucount = cpu2le16(pRsnie->ucount);
if (ucount > 2)
{
DBGPRINT_ERR(("%s : The count(%d) of pairwise cipher is invlaid\n",
__FUNCTION__, ucount));
return NULL;
}
// Get the group cipher
if (type == GROUP_SUITE)
{
*count = 1;
return pRsnie->mcast;
}
// Get the pairwise cipher suite
else if (type == PAIRWISE_SUITE)
{
DBGPRINT(RT_DEBUG_TRACE, ("%s : The count of pairwise cipher is %d\n",
__FUNCTION__, ucount));
*count = ucount;
return pRsnie->ucast[0].oui;
}
offset = sizeof(RSNIE) + (4 * (ucount - 1));
}
else if (pEid->Eid == IE_RSN)
{
PRSNIE2 pRsnie = (PRSNIE2)pBuf;
UINT16 ucount;
isWPA2 = TRUE;
if (len < sizeof(RSNIE2))
{
DBGPRINT_ERR(("%s : The length is too short for WPA2\n", __FUNCTION__));
return NULL;
}
// Get the count of pairwise cipher
ucount = cpu2le16(pRsnie->ucount);
if (ucount > 2)
{
DBGPRINT_ERR(("%s : The count(%d) of pairwise cipher is invlaid\n",
__FUNCTION__, ucount));
return NULL;
}
// Get the group cipher
if (type == GROUP_SUITE)
{
*count = 1;
return pRsnie->mcast;
}
// Get the pairwise cipher suite
else if (type == PAIRWISE_SUITE)
{
DBGPRINT(RT_DEBUG_TRACE, ("%s : The count of pairwise cipher is %d\n",
__FUNCTION__, ucount));
*count = ucount;
return pRsnie->ucast[0].oui;
}
offset = sizeof(RSNIE2) + (4 * (ucount - 1));
}
else
{
DBGPRINT_ERR(("%s : Unknown IE (%d)\n", __FUNCTION__, pEid->Eid));
return NULL;
}
// skip group cipher and pairwise cipher suite
pBuf += offset;
len -= offset;
if (len < sizeof(RSNIE_AUTH))
{
DBGPRINT_ERR(("%s : The length of RSNIE is too short\n", __FUNCTION__));
return NULL;
}
// pointer to AKM count
pAkm = (PRSNIE_AUTH)pBuf;
// Get the count of pairwise cipher
acount = cpu2le16(pAkm->acount);
if (acount > 2)
{
DBGPRINT_ERR(("%s : The count(%d) of AKM is invlaid\n",
__FUNCTION__, acount));
return NULL;
}
// Get the AKM suite
if (type == AKM_SUITE)
{
DBGPRINT(RT_DEBUG_TRACE, ("%s : The count of AKM is %d\n",
__FUNCTION__, acount));
*count = acount;
return pAkm->auth[0].oui;
}
offset = sizeof(RSNIE_AUTH) + (4 * (acount - 1));
pBuf += offset;
len -= offset;
// The remaining length must larger than (RSN-Capability(2) + PMKID-Count(2) + PMKID(16~))
if (len >= (sizeof(RSN_CAPABILITIES) + 2 + LEN_PMKID))
{
// Skip RSN capability and PMKID-Count
pBuf += (sizeof(RSN_CAPABILITIES) + 2);
len -= (sizeof(RSN_CAPABILITIES) + 2);
// Get PMKID
if (type == PMKID_LIST)
{
*count = 1;
return pBuf;
}
}
else
{
DBGPRINT_ERR(("%s : it can't get any more information beyond AKM \n", __FUNCTION__));
return NULL;
}
*count = 0;
//DBGPRINT_ERR(("%s : The type(%d) doesn't support \n", __FUNCTION__, type));
return NULL;
}
VOID WpaShowAllsuite(
IN PUINT8 rsnie,
IN UINT rsnie_len)
{
PUINT8 pSuite = NULL;
UINT8 count;
hex_dump("RSNIE", rsnie, rsnie_len);
// group cipher
if ((pSuite = GetSuiteFromRSNIE(rsnie, rsnie_len, GROUP_SUITE, &count)) != NULL)
{
hex_dump("group cipher", pSuite, 4*count);
}
// pairwise cipher
if ((pSuite = GetSuiteFromRSNIE(rsnie, rsnie_len, PAIRWISE_SUITE, &count)) != NULL)
{
hex_dump("pairwise cipher", pSuite, 4*count);
}
// AKM
if ((pSuite = GetSuiteFromRSNIE(rsnie, rsnie_len, AKM_SUITE, &count)) != NULL)
{
hex_dump("AKM suite", pSuite, 4*count);
}
// PMKID
if ((pSuite = GetSuiteFromRSNIE(rsnie, rsnie_len, PMKID_LIST, &count)) != NULL)
{
hex_dump("PMKID", pSuite, LEN_PMKID);
}
}
VOID RTMPInsertRSNIE(
IN PUCHAR pFrameBuf,
OUT PULONG pFrameLen,
IN PUINT8 rsnie_ptr,
IN UINT8 rsnie_len,
IN PUINT8 pmkid_ptr,
IN UINT8 pmkid_len)
{
PUCHAR pTmpBuf;
ULONG TempLen = 0;
UINT8 extra_len = 0;
UINT16 pmk_count = 0;
UCHAR ie_num;
UINT8 total_len = 0;
UCHAR WPA2_OUI[3]={0x00,0x0F,0xAC};
pTmpBuf = pFrameBuf;
/* PMKID-List Must larger than 0 and the multiple of 16. */
if (pmkid_len > 0 && ((pmkid_len & 0x0f) == 0))
{
extra_len = sizeof(UINT16) + pmkid_len;
pmk_count = (pmkid_len >> 4);
pmk_count = cpu2le16(pmk_count);
}
else
{
DBGPRINT(RT_DEBUG_WARN, ("%s : The length is PMKID-List is invalid (%d), so don't insert it.\n",
__FUNCTION__, pmkid_len));
}
if (rsnie_len != 0)
{
ie_num = IE_WPA;
total_len = rsnie_len;
if (NdisEqualMemory(rsnie_ptr + 2, WPA2_OUI, sizeof(WPA2_OUI)))
{
ie_num = IE_RSN;
total_len += extra_len;
}
/* construct RSNIE body */
MakeOutgoingFrame(pTmpBuf, &TempLen,
1, &ie_num,
1, &total_len,
rsnie_len, rsnie_ptr,
END_OF_ARGS);
pTmpBuf += TempLen;
*pFrameLen = *pFrameLen + TempLen;
if (ie_num == IE_RSN)
{
/* Insert PMKID-List field */
if (extra_len > 0)
{
MakeOutgoingFrame(pTmpBuf, &TempLen,
2, &pmk_count,
pmkid_len, pmkid_ptr,
END_OF_ARGS);
pTmpBuf += TempLen;
*pFrameLen = *pFrameLen + TempLen;
}
}
}
return;
}
|