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 | /*
* Implement cfg80211 ("iw") support.
*
* Copyright (C) 2009 M&N Solutions GmbH, 61191 Rosbach, Germany
* Holger Schurig <hs4233@mail.mn-solutions.de>
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/hardirq.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include <asm/unaligned.h>
#include "decl.h"
#include "cfg.h"
#include "cmd.h"
#include "mesh.h"
#define CHAN2G(_channel, _freq, _flags) { \
.band = IEEE80211_BAND_2GHZ, \
.center_freq = (_freq), \
.hw_value = (_channel), \
.flags = (_flags), \
.max_antenna_gain = 0, \
.max_power = 30, \
}
static struct ieee80211_channel lbs_2ghz_channels[] = {
CHAN2G(1, 2412, 0),
CHAN2G(2, 2417, 0),
CHAN2G(3, 2422, 0),
CHAN2G(4, 2427, 0),
CHAN2G(5, 2432, 0),
CHAN2G(6, 2437, 0),
CHAN2G(7, 2442, 0),
CHAN2G(8, 2447, 0),
CHAN2G(9, 2452, 0),
CHAN2G(10, 2457, 0),
CHAN2G(11, 2462, 0),
CHAN2G(12, 2467, 0),
CHAN2G(13, 2472, 0),
CHAN2G(14, 2484, 0),
};
#define RATETAB_ENT(_rate, _hw_value, _flags) { \
.bitrate = (_rate), \
.hw_value = (_hw_value), \
.flags = (_flags), \
}
/* Table 6 in section 3.2.1.1 */
static struct ieee80211_rate lbs_rates[] = {
RATETAB_ENT(10, 0, 0),
RATETAB_ENT(20, 1, 0),
RATETAB_ENT(55, 2, 0),
RATETAB_ENT(110, 3, 0),
RATETAB_ENT(60, 9, 0),
RATETAB_ENT(90, 6, 0),
RATETAB_ENT(120, 7, 0),
RATETAB_ENT(180, 8, 0),
RATETAB_ENT(240, 9, 0),
RATETAB_ENT(360, 10, 0),
RATETAB_ENT(480, 11, 0),
RATETAB_ENT(540, 12, 0),
};
static struct ieee80211_supported_band lbs_band_2ghz = {
.channels = lbs_2ghz_channels,
.n_channels = ARRAY_SIZE(lbs_2ghz_channels),
.bitrates = lbs_rates,
.n_bitrates = ARRAY_SIZE(lbs_rates),
};
static const u32 cipher_suites[] = {
WLAN_CIPHER_SUITE_WEP40,
WLAN_CIPHER_SUITE_WEP104,
WLAN_CIPHER_SUITE_TKIP,
WLAN_CIPHER_SUITE_CCMP,
};
/* Time to stay on the channel */
#define LBS_DWELL_PASSIVE 100
#define LBS_DWELL_ACTIVE 40
/***************************************************************************
* Misc utility functions
*
* TLVs are Marvell specific. They are very similar to IEs, they have the
* same structure: type, length, data*. The only difference: for IEs, the
* type and length are u8, but for TLVs they're __le16.
*/
/*
* Convert NL80211's auth_type to the one from Libertas, see chapter 5.9.1
* in the firmware spec
*/
static int lbs_auth_to_authtype(enum nl80211_auth_type auth_type)
{
int ret = -ENOTSUPP;
switch (auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
case NL80211_AUTHTYPE_SHARED_KEY:
ret = auth_type;
break;
case NL80211_AUTHTYPE_AUTOMATIC:
ret = NL80211_AUTHTYPE_OPEN_SYSTEM;
break;
case NL80211_AUTHTYPE_NETWORK_EAP:
ret = 0x80;
break;
default:
/* silence compiler */
break;
}
return ret;
}
/*
* Various firmware commands need the list of supported rates, but with
* the hight-bit set for basic rates
*/
static int lbs_add_rates(u8 *rates)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
u8 rate = lbs_rates[i].bitrate / 5;
if (rate == 0x02 || rate == 0x04 ||
rate == 0x0b || rate == 0x16)
rate |= 0x80;
rates[i] = rate;
}
return ARRAY_SIZE(lbs_rates);
}
/***************************************************************************
* TLV utility functions
*
* TLVs are Marvell specific. They are very similar to IEs, they have the
* same structure: type, length, data*. The only difference: for IEs, the
* type and length are u8, but for TLVs they're __le16.
*/
/*
* Add ssid TLV
*/
#define LBS_MAX_SSID_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ IEEE80211_MAX_SSID_LEN)
static int lbs_add_ssid_tlv(u8 *tlv, const u8 *ssid, int ssid_len)
{
struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv;
/*
* TLV-ID SSID 00 00
* length 06 00
* ssid 4d 4e 54 45 53 54
*/
ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID);
ssid_tlv->header.len = cpu_to_le16(ssid_len);
memcpy(ssid_tlv->ssid, ssid, ssid_len);
return sizeof(ssid_tlv->header) + ssid_len;
}
/*
* Add channel list TLV (section 8.4.2)
*
* Actual channel data comes from priv->wdev->wiphy->channels.
*/
#define LBS_MAX_CHANNEL_LIST_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ (LBS_SCAN_BEFORE_NAP * sizeof(struct chanscanparamset)))
static int lbs_add_channel_list_tlv(struct lbs_private *priv, u8 *tlv,
int last_channel, int active_scan)
{
int chanscanparamsize = sizeof(struct chanscanparamset) *
(last_channel - priv->scan_channel);
struct mrvl_ie_header *header = (void *) tlv;
/*
* TLV-ID CHANLIST 01 01
* length 0e 00
* channel 00 01 00 00 00 64 00
* radio type 00
* channel 01
* scan type 00
* min scan time 00 00
* max scan time 64 00
* channel 2 00 02 00 00 00 64 00
*
*/
header->type = cpu_to_le16(TLV_TYPE_CHANLIST);
header->len = cpu_to_le16(chanscanparamsize);
tlv += sizeof(struct mrvl_ie_header);
/* lbs_deb_scan("scan: channels %d to %d\n", priv->scan_channel,
last_channel); */
memset(tlv, 0, chanscanparamsize);
while (priv->scan_channel < last_channel) {
struct chanscanparamset *param = (void *) tlv;
param->radiotype = CMD_SCAN_RADIO_TYPE_BG;
param->channumber =
priv->scan_req->channels[priv->scan_channel]->hw_value;
if (active_scan) {
param->maxscantime = cpu_to_le16(LBS_DWELL_ACTIVE);
} else {
param->chanscanmode.passivescan = 1;
param->maxscantime = cpu_to_le16(LBS_DWELL_PASSIVE);
}
tlv += sizeof(struct chanscanparamset);
priv->scan_channel++;
}
return sizeof(struct mrvl_ie_header) + chanscanparamsize;
}
/*
* Add rates TLV
*
* The rates are in lbs_bg_rates[], but for the 802.11b
* rates the high bit is set. We add this TLV only because
* there's a firmware which otherwise doesn't report all
* APs in range.
*/
#define LBS_MAX_RATES_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ (ARRAY_SIZE(lbs_rates)))
/* Adds a TLV with all rates the hardware supports */
static int lbs_add_supported_rates_tlv(u8 *tlv)
{
size_t i;
struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
/*
* TLV-ID RATES 01 00
* length 0e 00
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c
*/
rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
tlv += sizeof(rate_tlv->header);
i = lbs_add_rates(tlv);
tlv += i;
rate_tlv->header.len = cpu_to_le16(i);
return sizeof(rate_tlv->header) + i;
}
/* Add common rates from a TLV and return the new end of the TLV */
static u8 *
add_ie_rates(u8 *tlv, const u8 *ie, int *nrates)
{
int hw, ap, ap_max = ie[1];
u8 hw_rate;
/* Advance past IE header */
ie += 2;
lbs_deb_hex(LBS_DEB_ASSOC, "AP IE Rates", (u8 *) ie, ap_max);
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
hw_rate = lbs_rates[hw].bitrate / 5;
for (ap = 0; ap < ap_max; ap++) {
if (hw_rate == (ie[ap] & 0x7f)) {
*tlv++ = ie[ap];
*nrates = *nrates + 1;
}
}
}
return tlv;
}
/*
* Adds a TLV with all rates the hardware *and* BSS supports.
*/
static int lbs_add_common_rates_tlv(u8 *tlv, struct cfg80211_bss *bss)
{
struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv;
const u8 *rates_eid, *ext_rates_eid;
int n = 0;
rcu_read_lock();
rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
ext_rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);
/*
* 01 00 TLV_TYPE_RATES
* 04 00 len
* 82 84 8b 96 rates
*/
rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES);
tlv += sizeof(rate_tlv->header);
/* Add basic rates */
if (rates_eid) {
tlv = add_ie_rates(tlv, rates_eid, &n);
/* Add extended rates, if any */
if (ext_rates_eid)
tlv = add_ie_rates(tlv, ext_rates_eid, &n);
} else {
lbs_deb_assoc("assoc: bss had no basic rate IE\n");
/* Fallback: add basic 802.11b rates */
*tlv++ = 0x82;
*tlv++ = 0x84;
*tlv++ = 0x8b;
*tlv++ = 0x96;
n = 4;
}
rcu_read_unlock();
rate_tlv->header.len = cpu_to_le16(n);
return sizeof(rate_tlv->header) + n;
}
/*
* Add auth type TLV.
*
* This is only needed for newer firmware (V9 and up).
*/
#define LBS_MAX_AUTH_TYPE_TLV_SIZE \
sizeof(struct mrvl_ie_auth_type)
static int lbs_add_auth_type_tlv(u8 *tlv, enum nl80211_auth_type auth_type)
{
struct mrvl_ie_auth_type *auth = (void *) tlv;
/*
* 1f 01 TLV_TYPE_AUTH_TYPE
* 01 00 len
* 01 auth type
*/
auth->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
auth->header.len = cpu_to_le16(sizeof(*auth)-sizeof(auth->header));
auth->auth = cpu_to_le16(lbs_auth_to_authtype(auth_type));
return sizeof(*auth);
}
/*
* Add channel (phy ds) TLV
*/
#define LBS_MAX_CHANNEL_TLV_SIZE \
sizeof(struct mrvl_ie_header)
static int lbs_add_channel_tlv(u8 *tlv, u8 channel)
{
struct mrvl_ie_ds_param_set *ds = (void *) tlv;
/*
* 03 00 TLV_TYPE_PHY_DS
* 01 00 len
* 06 channel
*/
ds->header.type = cpu_to_le16(TLV_TYPE_PHY_DS);
ds->header.len = cpu_to_le16(sizeof(*ds)-sizeof(ds->header));
ds->channel = channel;
return sizeof(*ds);
}
/*
* Add (empty) CF param TLV of the form:
*/
#define LBS_MAX_CF_PARAM_TLV_SIZE \
sizeof(struct mrvl_ie_header)
static int lbs_add_cf_param_tlv(u8 *tlv)
{
struct mrvl_ie_cf_param_set *cf = (void *)tlv;
/*
* 04 00 TLV_TYPE_CF
* 06 00 len
* 00 cfpcnt
* 00 cfpperiod
* 00 00 cfpmaxduration
* 00 00 cfpdurationremaining
*/
cf->header.type = cpu_to_le16(TLV_TYPE_CF);
cf->header.len = cpu_to_le16(sizeof(*cf)-sizeof(cf->header));
return sizeof(*cf);
}
/*
* Add WPA TLV
*/
#define LBS_MAX_WPA_TLV_SIZE \
(sizeof(struct mrvl_ie_header) \
+ 128 /* TODO: I guessed the size */)
static int lbs_add_wpa_tlv(u8 *tlv, const u8 *ie, u8 ie_len)
{
size_t tlv_len;
/*
* We need just convert an IE to an TLV. IEs use u8 for the header,
* u8 type
* u8 len
* u8[] data
* but TLVs use __le16 instead:
* __le16 type
* __le16 len
* u8[] data
*/
*tlv++ = *ie++;
*tlv++ = 0;
tlv_len = *tlv++ = *ie++;
*tlv++ = 0;
while (tlv_len--)
*tlv++ = *ie++;
/* the TLV is two bytes larger than the IE */
return ie_len + 2;
}
/*
* Set Channel
*/
static int lbs_cfg_set_monitor_channel(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = -ENOTSUPP;
lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
chandef->chan->center_freq,
cfg80211_get_chandef_type(chandef));
if (cfg80211_get_chandef_type(chandef) != NL80211_CHAN_NO_HT)
goto out;
ret = lbs_set_channel(priv, chandef->chan->hw_value);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_cfg_set_mesh_channel(struct wiphy *wiphy,
struct net_device *netdev,
struct ieee80211_channel *channel)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = -ENOTSUPP;
lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d",
netdev_name(netdev), channel->center_freq);
if (netdev != priv->mesh_dev)
goto out;
ret = lbs_mesh_set_channel(priv, channel->hw_value);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* Scanning
*/
/*
* When scanning, the firmware doesn't send a nul packet with the power-safe
* bit to the AP. So we cannot stay away from our current channel too long,
* otherwise we loose data. So take a "nap" while scanning every other
* while.
*/
#define LBS_SCAN_BEFORE_NAP 4
/*
* When the firmware reports back a scan-result, it gives us an "u8 rssi",
* which isn't really an RSSI, as it becomes larger when moving away from
* the AP. Anyway, we need to convert that into mBm.
*/
#define LBS_SCAN_RSSI_TO_MBM(rssi) \
((-(int)rssi + 3)*100)
static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy,
struct cmd_header *resp)
{
struct cfg80211_bss *bss;
struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp;
int bsssize;
const u8 *pos;
const u8 *tsfdesc;
int tsfsize;
int i;
int ret = -EILSEQ;
lbs_deb_enter(LBS_DEB_CFG80211);
bsssize = get_unaligned_le16(&scanresp->bssdescriptsize);
lbs_deb_scan("scan response: %d BSSs (%d bytes); resp size %d bytes\n",
scanresp->nr_sets, bsssize, le16_to_cpu(resp->size));
if (scanresp->nr_sets == 0) {
ret = 0;
goto done;
}
/*
* The general layout of the scan response is described in chapter
* 5.7.1. Basically we have a common part, then any number of BSS
* descriptor sections. Finally we have section with the same number
* of TSFs.
*
* cmd_ds_802_11_scan_rsp
* cmd_header
* pos_size
* nr_sets
* bssdesc 1
* bssid
* rssi
* timestamp
* intvl
* capa
* IEs
* bssdesc 2
* bssdesc n
* MrvlIEtypes_TsfFimestamp_t
* TSF for BSS 1
* TSF for BSS 2
* TSF for BSS n
*/
pos = scanresp->bssdesc_and_tlvbuffer;
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_RSP", scanresp->bssdesc_and_tlvbuffer,
scanresp->bssdescriptsize);
tsfdesc = pos + bsssize;
tsfsize = 4 + 8 * scanresp->nr_sets;
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TSF", (u8 *) tsfdesc, tsfsize);
/* Validity check: we expect a Marvell-Local TLV */
i = get_unaligned_le16(tsfdesc);
tsfdesc += 2;
if (i != TLV_TYPE_TSFTIMESTAMP) {
lbs_deb_scan("scan response: invalid TSF Timestamp %d\n", i);
goto done;
}
/*
* Validity check: the TLV holds TSF values with 8 bytes each, so
* the size in the TLV must match the nr_sets value
*/
i = get_unaligned_le16(tsfdesc);
tsfdesc += 2;
if (i / 8 != scanresp->nr_sets) {
lbs_deb_scan("scan response: invalid number of TSF timestamp "
"sets (expected %d got %d)\n", scanresp->nr_sets,
i / 8);
goto done;
}
for (i = 0; i < scanresp->nr_sets; i++) {
const u8 *bssid;
const u8 *ie;
int left;
int ielen;
int rssi;
u16 intvl;
u16 capa;
int chan_no = -1;
const u8 *ssid = NULL;
u8 ssid_len = 0;
int len = get_unaligned_le16(pos);
pos += 2;
/* BSSID */
bssid = pos;
pos += ETH_ALEN;
/* RSSI */
rssi = *pos++;
/* Packet time stamp */
pos += 8;
/* Beacon interval */
intvl = get_unaligned_le16(pos);
pos += 2;
/* Capabilities */
capa = get_unaligned_le16(pos);
pos += 2;
/* To find out the channel, we must parse the IEs */
ie = pos;
/*
* 6+1+8+2+2: size of BSSID, RSSI, time stamp, beacon
* interval, capabilities
*/
ielen = left = len - (6 + 1 + 8 + 2 + 2);
while (left >= 2) {
u8 id, elen;
id = *pos++;
elen = *pos++;
left -= 2;
if (elen > left) {
lbs_deb_scan("scan response: invalid IE fmt\n");
goto done;
}
if (id == WLAN_EID_DS_PARAMS)
chan_no = *pos;
if (id == WLAN_EID_SSID) {
ssid = pos;
ssid_len = elen;
}
left -= elen;
pos += elen;
}
/* No channel, no luck */
if (chan_no != -1) {
struct wiphy *wiphy = priv->wdev->wiphy;
int freq = ieee80211_channel_to_frequency(chan_no,
IEEE80211_BAND_2GHZ);
struct ieee80211_channel *channel =
ieee80211_get_channel(wiphy, freq);
lbs_deb_scan("scan: %pM, capa %04x, chan %2d, %*pE, %d dBm\n",
bssid, capa, chan_no, ssid_len, ssid,
LBS_SCAN_RSSI_TO_MBM(rssi)/100);
if (channel &&
!(channel->flags & IEEE80211_CHAN_DISABLED)) {
bss = cfg80211_inform_bss(wiphy, channel,
CFG80211_BSS_FTYPE_UNKNOWN,
bssid, get_unaligned_le64(tsfdesc),
capa, intvl, ie, ielen,
LBS_SCAN_RSSI_TO_MBM(rssi),
GFP_KERNEL);
cfg80211_put_bss(wiphy, bss);
}
} else
lbs_deb_scan("scan response: missing BSS channel IE\n");
tsfdesc += 8;
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret);
return ret;
}
/*
* Our scan command contains a TLV, consting of a SSID TLV, a channel list
* TLV and a rates TLV. Determine the maximum size of them:
*/
#define LBS_SCAN_MAX_CMD_SIZE \
(sizeof(struct cmd_ds_802_11_scan) \
+ LBS_MAX_SSID_TLV_SIZE \
+ LBS_MAX_CHANNEL_LIST_TLV_SIZE \
+ LBS_MAX_RATES_TLV_SIZE)
/*
* Assumes priv->scan_req is initialized and valid
* Assumes priv->scan_channel is initialized
*/
static void lbs_scan_worker(struct work_struct *work)
{
struct lbs_private *priv =
container_of(work, struct lbs_private, scan_work.work);
struct cmd_ds_802_11_scan *scan_cmd;
u8 *tlv; /* pointer into our current, growing TLV storage area */
int last_channel;
int running, carrier;
lbs_deb_enter(LBS_DEB_SCAN);
scan_cmd = kzalloc(LBS_SCAN_MAX_CMD_SIZE, GFP_KERNEL);
if (scan_cmd == NULL)
goto out_no_scan_cmd;
/* prepare fixed part of scan command */
scan_cmd->bsstype = CMD_BSS_TYPE_ANY;
/* stop network while we're away from our main channel */
running = !netif_queue_stopped(priv->dev);
carrier = netif_carrier_ok(priv->dev);
if (running)
netif_stop_queue(priv->dev);
if (carrier)
netif_carrier_off(priv->dev);
/* prepare fixed part of scan command */
tlv = scan_cmd->tlvbuffer;
/* add SSID TLV */
if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
tlv += lbs_add_ssid_tlv(tlv,
priv->scan_req->ssids[0].ssid,
priv->scan_req->ssids[0].ssid_len);
/* add channel TLVs */
last_channel = priv->scan_channel + LBS_SCAN_BEFORE_NAP;
if (last_channel > priv->scan_req->n_channels)
last_channel = priv->scan_req->n_channels;
tlv += lbs_add_channel_list_tlv(priv, tlv, last_channel,
priv->scan_req->n_ssids);
/* add rates TLV */
tlv += lbs_add_supported_rates_tlv(tlv);
if (priv->scan_channel < priv->scan_req->n_channels) {
cancel_delayed_work(&priv->scan_work);
if (netif_running(priv->dev))
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(300));
}
/* This is the final data we are about to send */
scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd);
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd,
sizeof(*scan_cmd));
lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer,
tlv - scan_cmd->tlvbuffer);
__lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr,
le16_to_cpu(scan_cmd->hdr.size),
lbs_ret_scan, 0);
if (priv->scan_channel >= priv->scan_req->n_channels) {
/* Mark scan done */
cancel_delayed_work(&priv->scan_work);
lbs_scan_done(priv);
}
/* Restart network */
if (carrier)
netif_carrier_on(priv->dev);
if (running && !priv->tx_pending_len)
netif_wake_queue(priv->dev);
kfree(scan_cmd);
/* Wake up anything waiting on scan completion */
if (priv->scan_req == NULL) {
lbs_deb_scan("scan: waking up waiters\n");
wake_up_all(&priv->scan_q);
}
out_no_scan_cmd:
lbs_deb_leave(LBS_DEB_SCAN);
}
static void _internal_start_scan(struct lbs_private *priv, bool internal,
struct cfg80211_scan_request *request)
{
lbs_deb_enter(LBS_DEB_CFG80211);
lbs_deb_scan("scan: ssids %d, channels %d, ie_len %zd\n",
request->n_ssids, request->n_channels, request->ie_len);
priv->scan_channel = 0;
priv->scan_req = request;
priv->internal_scan = internal;
queue_delayed_work(priv->work_thread, &priv->scan_work,
msecs_to_jiffies(50));
lbs_deb_leave(LBS_DEB_CFG80211);
}
/*
* Clean up priv->scan_req. Should be used to handle the allocation details.
*/
void lbs_scan_done(struct lbs_private *priv)
{
WARN_ON(!priv->scan_req);
if (priv->internal_scan)
kfree(priv->scan_req);
else
cfg80211_scan_done(priv->scan_req, false);
priv->scan_req = NULL;
}
static int lbs_cfg_scan(struct wiphy *wiphy,
struct cfg80211_scan_request *request)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
if (priv->scan_req || delayed_work_pending(&priv->scan_work)) {
/* old scan request not yet processed */
ret = -EAGAIN;
goto out;
}
_internal_start_scan(priv, false, request);
if (priv->surpriseremoved)
ret = -EIO;
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* Events
*/
void lbs_send_disconnect_notification(struct lbs_private *priv,
bool locally_generated)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cfg80211_disconnected(priv->dev, 0, NULL, 0, locally_generated,
GFP_KERNEL);
lbs_deb_leave(LBS_DEB_CFG80211);
}
void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cfg80211_michael_mic_failure(priv->dev,
priv->assoc_bss,
event == MACREG_INT_CODE_MIC_ERR_MULTICAST ?
NL80211_KEYTYPE_GROUP :
NL80211_KEYTYPE_PAIRWISE,
-1,
NULL,
GFP_KERNEL);
lbs_deb_leave(LBS_DEB_CFG80211);
}
/*
* Connect/disconnect
*/
/*
* This removes all WEP keys
*/
static int lbs_remove_wep_keys(struct lbs_private *priv)
{
struct cmd_ds_802_11_set_wep cmd;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
cmd.action = cpu_to_le16(CMD_ACT_REMOVE);
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Set WEP keys
*/
static int lbs_set_wep_keys(struct lbs_private *priv)
{
struct cmd_ds_802_11_set_wep cmd;
int i;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* command 13 00
* size 50 00
* sequence xx xx
* result 00 00
* action 02 00 ACT_ADD
* transmit key 00 00
* type for key 1 01 WEP40
* type for key 2 00
* type for key 3 00
* type for key 4 00
* key 1 39 39 39 39 39 00 00 00
* 00 00 00 00 00 00 00 00
* key 2 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* key 3 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* key 4 00 00 00 00 00 00 00 00
*/
if (priv->wep_key_len[0] || priv->wep_key_len[1] ||
priv->wep_key_len[2] || priv->wep_key_len[3]) {
/* Only set wep keys if we have at least one of them */
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.keyindex = cpu_to_le16(priv->wep_tx_key);
cmd.action = cpu_to_le16(CMD_ACT_ADD);
for (i = 0; i < 4; i++) {
switch (priv->wep_key_len[i]) {
case WLAN_KEY_LEN_WEP40:
cmd.keytype[i] = CMD_TYPE_WEP_40_BIT;
break;
case WLAN_KEY_LEN_WEP104:
cmd.keytype[i] = CMD_TYPE_WEP_104_BIT;
break;
default:
cmd.keytype[i] = 0;
break;
}
memcpy(cmd.keymaterial[i], priv->wep_key[i],
priv->wep_key_len[i]);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_SET_WEP, &cmd);
} else {
/* Otherwise remove all wep keys */
ret = lbs_remove_wep_keys(priv);
}
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Enable/Disable RSN status
*/
static int lbs_enable_rsn(struct lbs_private *priv, int enable)
{
struct cmd_ds_802_11_enable_rsn cmd;
int ret;
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", enable);
/*
* cmd 2f 00
* size 0c 00
* sequence xx xx
* result 00 00
* action 01 00 ACT_SET
* enable 01 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(CMD_ACT_SET);
cmd.enable = cpu_to_le16(enable);
ret = lbs_cmd_with_response(priv, CMD_802_11_ENABLE_RSN, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Set WPA/WPA key material
*/
/*
* like "struct cmd_ds_802_11_key_material", but with cmd_header. Once we
* get rid of WEXT, this should go into host.h
*/
struct cmd_key_material {
struct cmd_header hdr;
__le16 action;
struct MrvlIEtype_keyParamSet param;
} __packed;
static int lbs_set_key_material(struct lbs_private *priv,
int key_type, int key_info,
const u8 *key, u16 key_len)
{
struct cmd_key_material cmd;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* Example for WPA (TKIP):
*
* cmd 5e 00
* size 34 00
* sequence xx xx
* result 00 00
* action 01 00
* TLV type 00 01 key param
* length 00 26
* key type 01 00 TKIP
* key info 06 00 UNICAST | ENABLED
* key len 20 00
* key 32 bytes
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
cmd.action = cpu_to_le16(CMD_ACT_SET);
cmd.param.type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
cmd.param.length = cpu_to_le16(sizeof(cmd.param) - 4);
cmd.param.keytypeid = cpu_to_le16(key_type);
cmd.param.keyinfo = cpu_to_le16(key_info);
cmd.param.keylen = cpu_to_le16(key_len);
if (key && key_len)
memcpy(cmd.param.key, key, key_len);
ret = lbs_cmd_with_response(priv, CMD_802_11_KEY_MATERIAL, &cmd);
lbs_deb_leave(LBS_DEB_CFG80211);
return ret;
}
/*
* Sets the auth type (open, shared, etc) in the firmware. That
* we use CMD_802_11_AUTHENTICATE is misleading, this firmware
* command doesn't send an authentication frame at all, it just
* stores the auth_type.
*/
static int lbs_set_authtype(struct lbs_private *priv,
struct cfg80211_connect_params *sme)
{
struct cmd_ds_802_11_authenticate cmd;
int ret;
lbs_deb_enter_args(LBS_DEB_CFG80211, "%d", sme->auth_type);
/*
* cmd 11 00
* size 19 00
* sequence xx xx
* result 00 00
* BSS id 00 13 19 80 da 30
* auth type 00
* reserved 00 00 00 00 00 00 00 00 00 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
if (sme->bssid)
memcpy(cmd.bssid, sme->bssid, ETH_ALEN);
/* convert auth_type */
ret = lbs_auth_to_authtype(sme->auth_type);
if (ret < 0)
goto done;
cmd.authtype = ret;
ret = lbs_cmd_with_response(priv, CMD_802_11_AUTHENTICATE, &cmd);
done:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* Create association request
*/
#define LBS_ASSOC_MAX_CMD_SIZE \
(sizeof(struct cmd_ds_802_11_associate) \
- 512 /* cmd_ds_802_11_associate.iebuf */ \
+ LBS_MAX_SSID_TLV_SIZE \
+ LBS_MAX_CHANNEL_TLV_SIZE \
+ LBS_MAX_CF_PARAM_TLV_SIZE \
+ LBS_MAX_AUTH_TYPE_TLV_SIZE \
+ LBS_MAX_WPA_TLV_SIZE)
static int lbs_associate(struct lbs_private *priv,
struct cfg80211_bss *bss,
struct cfg80211_connect_params *sme)
{
struct cmd_ds_802_11_associate_response *resp;
struct cmd_ds_802_11_associate *cmd = kzalloc(LBS_ASSOC_MAX_CMD_SIZE,
GFP_KERNEL);
const u8 *ssid_eid;
size_t len, resp_ie_len;
int status;
int ret;
u8 *pos = &(cmd->iebuf[0]);
u8 *tmp;
lbs_deb_enter(LBS_DEB_CFG80211);
if (!cmd) {
ret = -ENOMEM;
goto done;
}
/*
* cmd 50 00
* length 34 00
* sequence xx xx
* result 00 00
* BSS id 00 13 19 80 da 30
* capabilities 11 00
* listen interval 0a 00
* beacon interval 00 00
* DTIM period 00
* TLVs xx (up to 512 bytes)
*/
cmd->hdr.command = cpu_to_le16(CMD_802_11_ASSOCIATE);
/* Fill in static fields */
memcpy(cmd->bssid, bss->bssid, ETH_ALEN);
cmd->listeninterval = cpu_to_le16(MRVDRV_DEFAULT_LISTEN_INTERVAL);
cmd->capability = cpu_to_le16(bss->capability);
/* add SSID TLV */
rcu_read_lock();
ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
if (ssid_eid)
pos += lbs_add_ssid_tlv(pos, ssid_eid + 2, ssid_eid[1]);
else
lbs_deb_assoc("no SSID\n");
rcu_read_unlock();
/* add DS param TLV */
if (bss->channel)
pos += lbs_add_channel_tlv(pos, bss->channel->hw_value);
else
lbs_deb_assoc("no channel\n");
/* add (empty) CF param TLV */
pos += lbs_add_cf_param_tlv(pos);
/* add rates TLV */
tmp = pos + 4; /* skip Marvell IE header */
pos += lbs_add_common_rates_tlv(pos, bss);
lbs_deb_hex(LBS_DEB_ASSOC, "Common Rates", tmp, pos - tmp);
/* add auth type TLV */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) >= 9)
pos += lbs_add_auth_type_tlv(pos, sme->auth_type);
/* add WPA/WPA2 TLV */
if (sme->ie && sme->ie_len)
pos += lbs_add_wpa_tlv(pos, sme->ie, sme->ie_len);
len = (sizeof(*cmd) - sizeof(cmd->iebuf)) +
(u16)(pos - (u8 *) &cmd->iebuf);
cmd->hdr.size = cpu_to_le16(len);
lbs_deb_hex(LBS_DEB_ASSOC, "ASSOC_CMD", (u8 *) cmd,
le16_to_cpu(cmd->hdr.size));
/* store for later use */
memcpy(priv->assoc_bss, bss->bssid, ETH_ALEN);
ret = lbs_cmd_with_response(priv, CMD_802_11_ASSOCIATE, cmd);
if (ret)
goto done;
/* generate connect message to cfg80211 */
resp = (void *) cmd; /* recast for easier field access */
status = le16_to_cpu(resp->statuscode);
/* Older FW versions map the IEEE 802.11 Status Code in the association
* response to the following values returned in resp->statuscode:
*
* IEEE Status Code Marvell Status Code
* 0 -> 0x0000 ASSOC_RESULT_SUCCESS
* 13 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 14 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 15 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* 16 -> 0x0004 ASSOC_RESULT_AUTH_REFUSED
* others -> 0x0003 ASSOC_RESULT_REFUSED
*
* Other response codes:
* 0x0001 -> ASSOC_RESULT_INVALID_PARAMETERS (unused)
* 0x0002 -> ASSOC_RESULT_TIMEOUT (internal timer expired waiting for
* association response from the AP)
*/
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
switch (status) {
case 0:
break;
case 1:
lbs_deb_assoc("invalid association parameters\n");
status = WLAN_STATUS_CAPS_UNSUPPORTED;
break;
case 2:
lbs_deb_assoc("timer expired while waiting for AP\n");
status = WLAN_STATUS_AUTH_TIMEOUT;
break;
case 3:
lbs_deb_assoc("association refused by AP\n");
status = WLAN_STATUS_ASSOC_DENIED_UNSPEC;
break;
case 4:
lbs_deb_assoc("authentication refused by AP\n");
status = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
break;
default:
lbs_deb_assoc("association failure %d\n", status);
/* v5 OLPC firmware does return the AP status code if
* it's not one of the values above. Let that through.
*/
break;
}
}
lbs_deb_assoc("status %d, statuscode 0x%04x, capability 0x%04x, "
"aid 0x%04x\n", status, le16_to_cpu(resp->statuscode),
le16_to_cpu(resp->capability), le16_to_cpu(resp->aid));
resp_ie_len = le16_to_cpu(resp->hdr.size)
- sizeof(resp->hdr)
- 6;
cfg80211_connect_result(priv->dev,
priv->assoc_bss,
sme->ie, sme->ie_len,
resp->iebuf, resp_ie_len,
status,
GFP_KERNEL);
if (status == 0) {
/* TODO: get rid of priv->connect_status */
priv->connect_status = LBS_CONNECTED;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_tx_wake_all_queues(priv->dev);
}
kfree(cmd);
done:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static struct cfg80211_scan_request *
_new_connect_scan_req(struct wiphy *wiphy, struct cfg80211_connect_params *sme)
{
struct cfg80211_scan_request *creq = NULL;
int i, n_channels = ieee80211_get_num_supported_channels(wiphy);
enum ieee80211_band band;
creq = kzalloc(sizeof(*creq) + sizeof(struct cfg80211_ssid) +
n_channels * sizeof(void *),
GFP_ATOMIC);
if (!creq)
return NULL;
/* SSIDs come after channels */
creq->ssids = (void *)&creq->channels[n_channels];
creq->n_channels = n_channels;
creq->n_ssids = 1;
/* Scan all available channels */
i = 0;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
int j;
if (!wiphy->bands[band])
continue;
for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
/* ignore disabled channels */
if (wiphy->bands[band]->channels[j].flags &
IEEE80211_CHAN_DISABLED)
continue;
creq->channels[i] = &wiphy->bands[band]->channels[j];
i++;
}
}
if (i) {
/* Set real number of channels specified in creq->channels[] */
creq->n_channels = i;
/* Scan for the SSID we're going to connect to */
memcpy(creq->ssids[0].ssid, sme->ssid, sme->ssid_len);
creq->ssids[0].ssid_len = sme->ssid_len;
} else {
/* No channels found... */
kfree(creq);
creq = NULL;
}
return creq;
}
static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_connect_params *sme)
{
struct lbs_private *priv = wiphy_priv(wiphy);
struct cfg80211_bss *bss = NULL;
int ret = 0;
u8 preamble = RADIO_PREAMBLE_SHORT;
if (dev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter(LBS_DEB_CFG80211);
if (!sme->bssid) {
struct cfg80211_scan_request *creq;
/*
* Scan for the requested network after waiting for existing
* scans to finish.
*/
lbs_deb_assoc("assoc: waiting for existing scans\n");
wait_event_interruptible_timeout(priv->scan_q,
(priv->scan_req == NULL),
(15 * HZ));
creq = _new_connect_scan_req(wiphy, sme);
if (!creq) {
ret = -EINVAL;
goto done;
}
lbs_deb_assoc("assoc: scanning for compatible AP\n");
_internal_start_scan(priv, true, creq);
lbs_deb_assoc("assoc: waiting for scan to complete\n");
wait_event_interruptible_timeout(priv->scan_q,
(priv->scan_req == NULL),
(15 * HZ));
lbs_deb_assoc("assoc: scanning completed\n");
}
/* Find the BSS we want using available scan results */
bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
sme->ssid, sme->ssid_len, IEEE80211_BSS_TYPE_ESS,
IEEE80211_PRIVACY_ANY);
if (!bss) {
wiphy_err(wiphy, "assoc: bss %pM not in scan results\n",
sme->bssid);
ret = -ENOENT;
goto done;
}
lbs_deb_assoc("trying %pM\n", bss->bssid);
lbs_deb_assoc("cipher 0x%x, key index %d, key len %d\n",
sme->crypto.cipher_group,
sme->key_idx, sme->key_len);
/* As this is a new connection, clear locally stored WEP keys */
priv->wep_tx_key = 0;
memset(priv->wep_key, 0, sizeof(priv->wep_key));
memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len));
/* set/remove WEP keys */
switch (sme->crypto.cipher_group) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
/* Store provided WEP keys in priv-> */
priv->wep_tx_key = sme->key_idx;
priv->wep_key_len[sme->key_idx] = sme->key_len;
memcpy(priv->wep_key[sme->key_idx], sme->key, sme->key_len);
/* Set WEP keys and WEP mode */
lbs_set_wep_keys(priv);
priv->mac_control |= CMD_ACT_MAC_WEP_ENABLE;
lbs_set_mac_control(priv);
/* No RSN mode for WEP */
lbs_enable_rsn(priv, 0);
break;
case 0: /* there's no WLAN_CIPHER_SUITE_NONE definition */
/*
* If we don't have no WEP, no WPA and no WPA2,
* we remove all keys like in the WPA/WPA2 setup,
* we just don't set RSN.
*
* Therefore: fall-through
*/
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
/* Remove WEP keys and WEP mode */
lbs_remove_wep_keys(priv);
priv->mac_control &= ~CMD_ACT_MAC_WEP_ENABLE;
lbs_set_mac_control(priv);
/* clear the WPA/WPA2 keys */
lbs_set_key_material(priv,
KEY_TYPE_ID_WEP, /* doesn't matter */
KEY_INFO_WPA_UNICAST,
NULL, 0);
lbs_set_key_material(priv,
KEY_TYPE_ID_WEP, /* doesn't matter */
KEY_INFO_WPA_MCAST,
NULL, 0);
/* RSN mode for WPA/WPA2 */
lbs_enable_rsn(priv, sme->crypto.cipher_group != 0);
break;
default:
wiphy_err(wiphy, "unsupported cipher group 0x%x\n",
sme->crypto.cipher_group);
ret = -ENOTSUPP;
goto done;
}
ret = lbs_set_authtype(priv, sme);
if (ret == -ENOTSUPP) {
wiphy_err(wiphy, "unsupported authtype 0x%x\n", sme->auth_type);
goto done;
}
lbs_set_radio(priv, preamble, 1);
/* Do the actual association */
ret = lbs_associate(priv, bss, sme);
done:
if (bss)
cfg80211_put_bss(wiphy, bss);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
int lbs_disconnect(struct lbs_private *priv, u16 reason)
{
struct cmd_ds_802_11_deauthenticate cmd;
int ret;
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
/* Mildly ugly to use a locally store my own BSSID ... */
memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
cmd.reasoncode = cpu_to_le16(reason);
ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
if (ret)
return ret;
cfg80211_disconnected(priv->dev,
reason,
NULL, 0, true,
GFP_KERNEL);
priv->connect_status = LBS_DISCONNECTED;
return 0;
}
static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
u16 reason_code)
{
struct lbs_private *priv = wiphy_priv(wiphy);
if (dev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
/* store for lbs_cfg_ret_disconnect() */
priv->disassoc_reason = reason_code;
return lbs_disconnect(priv, reason_code);
}
static int lbs_cfg_set_default_key(struct wiphy *wiphy,
struct net_device *netdev,
u8 key_index, bool unicast,
bool multicast)
{
struct lbs_private *priv = wiphy_priv(wiphy);
if (netdev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter(LBS_DEB_CFG80211);
if (key_index != priv->wep_tx_key) {
lbs_deb_assoc("set_default_key: to %d\n", key_index);
priv->wep_tx_key = key_index;
lbs_set_wep_keys(priv);
}
return 0;
}
static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
u8 idx, bool pairwise, const u8 *mac_addr,
struct key_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
u16 key_info;
u16 key_type;
int ret = 0;
if (netdev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter(LBS_DEB_CFG80211);
lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
params->cipher, mac_addr);
lbs_deb_assoc("add_key: key index %d, key len %d\n",
idx, params->key_len);
if (params->key_len)
lbs_deb_hex(LBS_DEB_CFG80211, "KEY",
params->key, params->key_len);
lbs_deb_assoc("add_key: seq len %d\n", params->seq_len);
if (params->seq_len)
lbs_deb_hex(LBS_DEB_CFG80211, "SEQ",
params->seq, params->seq_len);
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
/* actually compare if something has changed ... */
if ((priv->wep_key_len[idx] != params->key_len) ||
memcmp(priv->wep_key[idx],
params->key, params->key_len) != 0) {
priv->wep_key_len[idx] = params->key_len;
memcpy(priv->wep_key[idx],
params->key, params->key_len);
lbs_set_wep_keys(priv);
}
break;
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
key_info = KEY_INFO_WPA_ENABLED | ((idx == 0)
? KEY_INFO_WPA_UNICAST
: KEY_INFO_WPA_MCAST);
key_type = (params->cipher == WLAN_CIPHER_SUITE_TKIP)
? KEY_TYPE_ID_TKIP
: KEY_TYPE_ID_AES;
lbs_set_key_material(priv,
key_type,
key_info,
params->key, params->key_len);
break;
default:
wiphy_err(wiphy, "unhandled cipher 0x%x\n", params->cipher);
ret = -ENOTSUPP;
break;
}
return ret;
}
static int lbs_cfg_del_key(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index, bool pairwise, const u8 *mac_addr)
{
lbs_deb_enter(LBS_DEB_CFG80211);
lbs_deb_assoc("del_key: key_idx %d, mac_addr %pM\n",
key_index, mac_addr);
#ifdef TODO
struct lbs_private *priv = wiphy_priv(wiphy);
/*
* I think can keep this a NO-OP, because:
* - we clear all keys whenever we do lbs_cfg_connect() anyway
* - neither "iw" nor "wpa_supplicant" won't call this during
* an ongoing connection
* - TODO: but I have to check if this is still true when
* I set the AP to periodic re-keying
* - we've not kzallec() something when we've added a key at
* lbs_cfg_connect() or lbs_cfg_add_key().
*
* This causes lbs_cfg_del_key() only called at disconnect time,
* where we'd just waste time deleting a key that is not going
* to be used anyway.
*/
if (key_index < 3 && priv->wep_key_len[key_index]) {
priv->wep_key_len[key_index] = 0;
lbs_set_wep_keys(priv);
}
#endif
return 0;
}
/*
* Get station
*/
static int lbs_cfg_get_station(struct wiphy *wiphy, struct net_device *dev,
const u8 *mac, struct station_info *sinfo)
{
struct lbs_private *priv = wiphy_priv(wiphy);
s8 signal, noise;
int ret;
size_t i;
lbs_deb_enter(LBS_DEB_CFG80211);
sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES) |
BIT(NL80211_STA_INFO_TX_PACKETS) |
BIT(NL80211_STA_INFO_RX_BYTES) |
BIT(NL80211_STA_INFO_RX_PACKETS);
sinfo->tx_bytes = priv->dev->stats.tx_bytes;
sinfo->tx_packets = priv->dev->stats.tx_packets;
sinfo->rx_bytes = priv->dev->stats.rx_bytes;
sinfo->rx_packets = priv->dev->stats.rx_packets;
/* Get current RSSI */
ret = lbs_get_rssi(priv, &signal, &noise);
if (ret == 0) {
sinfo->signal = signal;
sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
}
/* Convert priv->cur_rate from hw_value to NL80211 value */
for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) {
if (priv->cur_rate == lbs_rates[i].hw_value) {
sinfo->txrate.legacy = lbs_rates[i].bitrate;
sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
break;
}
}
return 0;
}
/*
* Change interface
*/
static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
if (dev == priv->mesh_dev)
return -EOPNOTSUPP;
switch (type) {
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
break;
default:
return -EOPNOTSUPP;
}
lbs_deb_enter(LBS_DEB_CFG80211);
if (priv->iface_running)
ret = lbs_set_iface_type(priv, type);
if (!ret)
priv->wdev->iftype = type;
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* IBSS (Ad-Hoc)
*/
/*
* The firmware needs the following bits masked out of the beacon-derived
* capability field when associating/joining to a BSS:
* 9 (QoS), 11 (APSD), 12 (unused), 14 (unused), 15 (unused)
*/
#define CAPINFO_MASK (~(0xda00))
static void lbs_join_post(struct lbs_private *priv,
struct cfg80211_ibss_params *params,
u8 *bssid, u16 capability)
{
u8 fake_ie[2 + IEEE80211_MAX_SSID_LEN + /* ssid */
2 + 4 + /* basic rates */
2 + 1 + /* DS parameter */
2 + 2 + /* atim */
2 + 8]; /* extended rates */
u8 *fake = fake_ie;
struct cfg80211_bss *bss;
lbs_deb_enter(LBS_DEB_CFG80211);
/*
* For cfg80211_inform_bss, we'll need a fake IE, as we can't get
* the real IE from the firmware. So we fabricate a fake IE based on
* what the firmware actually sends (sniffed with wireshark).
*/
/* Fake SSID IE */
*fake++ = WLAN_EID_SSID;
*fake++ = params->ssid_len;
memcpy(fake, params->ssid, params->ssid_len);
fake += params->ssid_len;
/* Fake supported basic rates IE */
*fake++ = WLAN_EID_SUPP_RATES;
*fake++ = 4;
*fake++ = 0x82;
*fake++ = 0x84;
*fake++ = 0x8b;
*fake++ = 0x96;
/* Fake DS channel IE */
*fake++ = WLAN_EID_DS_PARAMS;
*fake++ = 1;
*fake++ = params->chandef.chan->hw_value;
/* Fake IBSS params IE */
*fake++ = WLAN_EID_IBSS_PARAMS;
*fake++ = 2;
*fake++ = 0; /* ATIM=0 */
*fake++ = 0;
/* Fake extended rates IE, TODO: don't add this for 802.11b only,
* but I don't know how this could be checked */
*fake++ = WLAN_EID_EXT_SUPP_RATES;
*fake++ = 8;
*fake++ = 0x0c;
*fake++ = 0x12;
*fake++ = 0x18;
*fake++ = 0x24;
*fake++ = 0x30;
*fake++ = 0x48;
*fake++ = 0x60;
*fake++ = 0x6c;
lbs_deb_hex(LBS_DEB_CFG80211, "IE", fake_ie, fake - fake_ie);
bss = cfg80211_inform_bss(priv->wdev->wiphy,
params->chandef.chan,
CFG80211_BSS_FTYPE_UNKNOWN,
bssid,
0,
capability,
params->beacon_interval,
fake_ie, fake - fake_ie,
0, GFP_KERNEL);
cfg80211_put_bss(priv->wdev->wiphy, bss);
memcpy(priv->wdev->ssid, params->ssid, params->ssid_len);
priv->wdev->ssid_len = params->ssid_len;
cfg80211_ibss_joined(priv->dev, bssid, params->chandef.chan,
GFP_KERNEL);
/* TODO: consider doing this at MACREG_INT_CODE_LINK_SENSED time */
priv->connect_status = LBS_CONNECTED;
netif_carrier_on(priv->dev);
if (!priv->tx_pending_len)
netif_wake_queue(priv->dev);
lbs_deb_leave(LBS_DEB_CFG80211);
}
static int lbs_ibss_join_existing(struct lbs_private *priv,
struct cfg80211_ibss_params *params,
struct cfg80211_bss *bss)
{
const u8 *rates_eid;
struct cmd_ds_802_11_ad_hoc_join cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
int ret = 0;
lbs_deb_enter(LBS_DEB_CFG80211);
/* TODO: set preamble based on scan result */
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
/*
* Example CMD_802_11_AD_HOC_JOIN command:
*
* command 2c 00 CMD_802_11_AD_HOC_JOIN
* size 65 00
* sequence xx xx
* result 00 00
* bssid 02 27 27 97 2f 96
* ssid 49 42 53 53 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* type 02 CMD_BSS_TYPE_IBSS
* beacon period 64 00
* dtim period 00
* timestamp 00 00 00 00 00 00 00 00
* localtime 00 00 00 00 00 00 00 00
* IE DS 03
* IE DS len 01
* IE DS channel 01
* reserveed 00 00 00 00
* IE IBSS 06
* IE IBSS len 02
* IE IBSS atim 00 00
* reserved 00 00 00 00
* capability 02 00
* rates 82 84 8b 96 0c 12 18 24 30 48 60 6c 00
* fail timeout ff 00
* probe delay 00 00
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.bss.bssid, bss->bssid, ETH_ALEN);
memcpy(cmd.bss.ssid, params->ssid, params->ssid_len);
cmd.bss.type = CMD_BSS_TYPE_IBSS;
cmd.bss.beaconperiod = cpu_to_le16(params->beacon_interval);
cmd.bss.ds.header.id = WLAN_EID_DS_PARAMS;
cmd.bss.ds.header.len = 1;
cmd.bss.ds.channel = params->chandef.chan->hw_value;
cmd.bss.ibss.header.id = WLAN_EID_IBSS_PARAMS;
cmd.bss.ibss.header.len = 2;
cmd.bss.ibss.atimwindow = 0;
cmd.bss.capability = cpu_to_le16(bss->capability & CAPINFO_MASK);
/* set rates to the intersection of our rates and the rates in the
bss */
rcu_read_lock();
rates_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SUPP_RATES);
if (!rates_eid) {
lbs_add_rates(cmd.bss.rates);
} else {
int hw, i;
u8 rates_max = rates_eid[1];
u8 *rates = cmd.bss.rates;
for (hw = 0; hw < ARRAY_SIZE(lbs_rates); hw++) {
u8 hw_rate = lbs_rates[hw].bitrate / 5;
for (i = 0; i < rates_max; i++) {
if (hw_rate == (rates_eid[i+2] & 0x7f)) {
u8 rate = rates_eid[i+2];
if (rate == 0x02 || rate == 0x04 ||
rate == 0x0b || rate == 0x16)
rate |= 0x80;
*rates++ = rate;
}
}
}
}
rcu_read_unlock();
/* Only v8 and below support setting this */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8) {
cmd.failtimeout = cpu_to_le16(MRVDRV_ASSOCIATION_TIME_OUT);
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
}
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_JOIN, &cmd);
if (ret)
goto out;
/*
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
*
* response 2c 80
* size 09 00
* sequence xx xx
* result 00 00
* reserved 00
*/
lbs_join_post(priv, params, bss->bssid, bss->capability);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_ibss_start_new(struct lbs_private *priv,
struct cfg80211_ibss_params *params)
{
struct cmd_ds_802_11_ad_hoc_start cmd;
struct cmd_ds_802_11_ad_hoc_result *resp =
(struct cmd_ds_802_11_ad_hoc_result *) &cmd;
u8 preamble = RADIO_PREAMBLE_SHORT;
int ret = 0;
u16 capability;
lbs_deb_enter(LBS_DEB_CFG80211);
ret = lbs_set_radio(priv, preamble, 1);
if (ret)
goto out;
/*
* Example CMD_802_11_AD_HOC_START command:
*
* command 2b 00 CMD_802_11_AD_HOC_START
* size b1 00
* sequence xx xx
* result 00 00
* ssid 54 45 53 54 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* 00 00 00 00 00 00 00 00
* bss type 02
* beacon period 64 00
* dtim period 00
* IE IBSS 06
* IE IBSS len 02
* IE IBSS atim 00 00
* reserved 00 00 00 00
* IE DS 03
* IE DS len 01
* IE DS channel 01
* reserved 00 00 00 00
* probe delay 00 00
* capability 02 00
* rates 82 84 8b 96 (basic rates with have bit 7 set)
* 0c 12 18 24 30 48 60 6c
* padding 100 bytes
*/
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
memcpy(cmd.ssid, params->ssid, params->ssid_len);
cmd.bsstype = CMD_BSS_TYPE_IBSS;
cmd.beaconperiod = cpu_to_le16(params->beacon_interval);
cmd.ibss.header.id = WLAN_EID_IBSS_PARAMS;
cmd.ibss.header.len = 2;
cmd.ibss.atimwindow = 0;
cmd.ds.header.id = WLAN_EID_DS_PARAMS;
cmd.ds.header.len = 1;
cmd.ds.channel = params->chandef.chan->hw_value;
/* Only v8 and below support setting probe delay */
if (MRVL_FW_MAJOR_REV(priv->fwrelease) <= 8)
cmd.probedelay = cpu_to_le16(CMD_SCAN_PROBE_DELAY_TIME);
/* TODO: mix in WLAN_CAPABILITY_PRIVACY */
capability = WLAN_CAPABILITY_IBSS;
cmd.capability = cpu_to_le16(capability);
lbs_add_rates(cmd.rates);
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_START, &cmd);
if (ret)
goto out;
/*
* This is a sample response to CMD_802_11_AD_HOC_JOIN:
*
* response 2b 80
* size 14 00
* sequence xx xx
* result 00 00
* reserved 00
* bssid 02 2b 7b 0f 86 0e
*/
lbs_join_post(priv, params, resp->bssid, capability);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params)
{
struct lbs_private *priv = wiphy_priv(wiphy);
int ret = 0;
struct cfg80211_bss *bss;
if (dev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter(LBS_DEB_CFG80211);
if (!params->chandef.chan) {
ret = -ENOTSUPP;
goto out;
}
ret = lbs_set_channel(priv, params->chandef.chan->hw_value);
if (ret)
goto out;
/* Search if someone is beaconing. This assumes that the
* bss list is populated already */
bss = cfg80211_get_bss(wiphy, params->chandef.chan, params->bssid,
params->ssid, params->ssid_len,
IEEE80211_BSS_TYPE_IBSS, IEEE80211_PRIVACY_ANY);
if (bss) {
ret = lbs_ibss_join_existing(priv, params, bss);
cfg80211_put_bss(wiphy, bss);
} else
ret = lbs_ibss_start_new(priv, params);
out:
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
{
struct lbs_private *priv = wiphy_priv(wiphy);
struct cmd_ds_802_11_ad_hoc_stop cmd;
int ret = 0;
if (dev == priv->mesh_dev)
return -EOPNOTSUPP;
lbs_deb_enter(LBS_DEB_CFG80211);
memset(&cmd, 0, sizeof(cmd));
cmd.hdr.size = cpu_to_le16(sizeof(cmd));
ret = lbs_cmd_with_response(priv, CMD_802_11_AD_HOC_STOP, &cmd);
/* TODO: consider doing this at MACREG_INT_CODE_ADHOC_BCN_LOST time */
lbs_mac_event_disconnected(priv, true);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
/*
* Initialization
*/
static struct cfg80211_ops lbs_cfg80211_ops = {
.set_monitor_channel = lbs_cfg_set_monitor_channel,
.libertas_set_mesh_channel = lbs_cfg_set_mesh_channel,
.scan = lbs_cfg_scan,
.connect = lbs_cfg_connect,
.disconnect = lbs_cfg_disconnect,
.add_key = lbs_cfg_add_key,
.del_key = lbs_cfg_del_key,
.set_default_key = lbs_cfg_set_default_key,
.get_station = lbs_cfg_get_station,
.change_virtual_intf = lbs_change_intf,
.join_ibss = lbs_join_ibss,
.leave_ibss = lbs_leave_ibss,
};
/*
* At this time lbs_private *priv doesn't even exist, so we just allocate
* memory and don't initialize the wiphy further. This is postponed until we
* can talk to the firmware and happens at registration time in
* lbs_cfg_wiphy_register().
*/
struct wireless_dev *lbs_cfg_alloc(struct device *dev)
{
int ret = 0;
struct wireless_dev *wdev;
lbs_deb_enter(LBS_DEB_CFG80211);
wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
if (!wdev)
return ERR_PTR(-ENOMEM);
wdev->wiphy = wiphy_new(&lbs_cfg80211_ops, sizeof(struct lbs_private));
if (!wdev->wiphy) {
dev_err(dev, "cannot allocate wiphy\n");
ret = -ENOMEM;
goto err_wiphy_new;
}
lbs_deb_leave(LBS_DEB_CFG80211);
return wdev;
err_wiphy_new:
kfree(wdev);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ERR_PTR(ret);
}
static void lbs_cfg_set_regulatory_hint(struct lbs_private *priv)
{
struct region_code_mapping {
const char *cn;
int code;
};
/* Section 5.17.2 */
static const struct region_code_mapping regmap[] = {
{"US ", 0x10}, /* US FCC */
{"CA ", 0x20}, /* Canada */
{"EU ", 0x30}, /* ETSI */
{"ES ", 0x31}, /* Spain */
{"FR ", 0x32}, /* France */
{"JP ", 0x40}, /* Japan */
};
size_t i;
lbs_deb_enter(LBS_DEB_CFG80211);
for (i = 0; i < ARRAY_SIZE(regmap); i++)
if (regmap[i].code == priv->regioncode) {
regulatory_hint(priv->wdev->wiphy, regmap[i].cn);
break;
}
lbs_deb_leave(LBS_DEB_CFG80211);
}
static void lbs_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct lbs_private *priv = wiphy_priv(wiphy);
lbs_deb_enter_args(LBS_DEB_CFG80211, "cfg80211 regulatory domain "
"callback for domain %c%c\n", request->alpha2[0],
request->alpha2[1]);
memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
if (lbs_iface_active(priv))
lbs_set_11d_domain_info(priv);
lbs_deb_leave(LBS_DEB_CFG80211);
}
/*
* This function get's called after lbs_setup_firmware() determined the
* firmware capabities. So we can setup the wiphy according to our
* hardware/firmware.
*/
int lbs_cfg_register(struct lbs_private *priv)
{
struct wireless_dev *wdev = priv->wdev;
int ret;
lbs_deb_enter(LBS_DEB_CFG80211);
wdev->wiphy->max_scan_ssids = 1;
wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
wdev->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
if (lbs_rtap_supported(priv))
wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
if (lbs_mesh_activated(priv))
wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
/*
* We could check priv->fwcapinfo && FW_CAPINFO_WPA, but I have
* never seen a firmware without WPA
*/
wdev->wiphy->cipher_suites = cipher_suites;
wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
wdev->wiphy->reg_notifier = lbs_reg_notifier;
ret = wiphy_register(wdev->wiphy);
if (ret < 0)
pr_err("cannot register wiphy device\n");
priv->wiphy_registered = true;
ret = register_netdev(priv->dev);
if (ret)
pr_err("cannot register network device\n");
INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
lbs_cfg_set_regulatory_hint(priv);
lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
return ret;
}
void lbs_scan_deinit(struct lbs_private *priv)
{
lbs_deb_enter(LBS_DEB_CFG80211);
cancel_delayed_work_sync(&priv->scan_work);
}
void lbs_cfg_free(struct lbs_private *priv)
{
struct wireless_dev *wdev = priv->wdev;
lbs_deb_enter(LBS_DEB_CFG80211);
if (!wdev)
return;
if (priv->wiphy_registered)
wiphy_unregister(wdev->wiphy);
if (wdev->wiphy)
wiphy_free(wdev->wiphy);
kfree(wdev);
}
|