Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Sigma Control API DUT (station/AP) |
Amarnath Hullur Subramanyam | 659a34c | 2017-03-17 00:04:41 -0700 | [diff] [blame] | 3 | * Copyright (c) 2014-2017, Qualcomm Atheros, Inc. |
Ankita Bajaj | 1bde794 | 2018-01-09 19:15:01 +0530 | [diff] [blame] | 4 | * Copyright (c) 2018, The Linux Foundation |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 5 | * All Rights Reserved. |
| 6 | * Licensed under the Clear BSD license. See README for more details. |
| 7 | */ |
| 8 | |
| 9 | #include "sigma_dut.h" |
| 10 | #include <sys/stat.h> |
| 11 | #include "wpa_helpers.h" |
| 12 | |
| 13 | enum driver_type wifi_chip_type = DRIVER_NOT_SET; |
| 14 | enum openwrt_driver_type openwrt_chip_type = OPENWRT_DRIVER_NOT_SET; |
| 15 | |
| 16 | |
| 17 | int file_exists(const char *fname) |
| 18 | { |
| 19 | struct stat s; |
| 20 | return stat(fname, &s) == 0; |
| 21 | } |
| 22 | |
| 23 | |
| 24 | int set_wifi_chip(const char *chip_type) |
| 25 | { |
| 26 | if (!strncmp(chip_type, "WCN", strlen("WCN"))) |
| 27 | wifi_chip_type = DRIVER_WCN; |
| 28 | else if (!strncmp(chip_type, "ATHEROS", strlen("ATHEROS"))) |
| 29 | wifi_chip_type = DRIVER_ATHEROS; |
| 30 | else if (!strncmp(chip_type, "AR6003", strlen("AR6003"))) |
| 31 | wifi_chip_type = DRIVER_AR6003; |
| 32 | else if (strcmp(chip_type, "MAC80211") == 0) |
| 33 | wifi_chip_type = DRIVER_MAC80211; |
| 34 | else if (strcmp(chip_type, "QNXNTO") == 0) |
| 35 | wifi_chip_type = DRIVER_QNXNTO; |
| 36 | else if (strcmp(chip_type, "OPENWRT") == 0) |
| 37 | wifi_chip_type = DRIVER_OPENWRT; |
Sreelakshmi Konamki | b692f10 | 2016-04-26 19:47:00 +0530 | [diff] [blame] | 38 | else if (!strncmp(chip_type, "LINUX-WCN", strlen("LINUX-WCN"))) |
| 39 | wifi_chip_type = DRIVER_LINUX_WCN; |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 40 | else |
| 41 | return -1; |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | |
| 47 | enum driver_type get_driver_type(void) |
| 48 | { |
| 49 | struct stat s; |
| 50 | if (wifi_chip_type == DRIVER_NOT_SET) { |
| 51 | /* Check for 60G driver */ |
| 52 | ssize_t len; |
| 53 | char link[256]; |
| 54 | char buf[256]; |
| 55 | char *ifname = get_station_ifname(); |
| 56 | |
| 57 | snprintf(buf, sizeof(buf), "/sys/class/net/%s/device/driver", |
| 58 | ifname); |
| 59 | len = readlink(buf, link, sizeof(link) - 1); |
| 60 | if (len >= 0) { |
| 61 | link[len] = '\0'; |
| 62 | if (strstr(link, DRIVER_NAME_60G)) |
| 63 | return DRIVER_WIL6210; |
| 64 | } |
| 65 | |
| 66 | if (stat("/sys/module/mac80211", &s) == 0) |
| 67 | return DRIVER_MAC80211; |
| 68 | return DRIVER_ATHEROS; |
| 69 | } |
| 70 | return wifi_chip_type; |
| 71 | } |
| 72 | |
| 73 | |
| 74 | enum openwrt_driver_type get_openwrt_driver_type(void) |
| 75 | { |
| 76 | struct stat s; |
| 77 | |
| 78 | if (openwrt_chip_type == OPENWRT_DRIVER_NOT_SET) { |
priyadharshini gowthaman | 00bbdf1 | 2018-01-29 12:42:00 -0800 | [diff] [blame] | 79 | if (stat("/sys/module/umac", &s) == 0 || |
| 80 | stat("/sys/module/atd", &s) == 0) |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 81 | openwrt_chip_type = OPENWRT_DRIVER_ATHEROS; |
| 82 | } |
| 83 | |
| 84 | return openwrt_chip_type; |
| 85 | } |
| 86 | |
| 87 | |
| 88 | enum sigma_program sigma_program_to_enum(const char *prog) |
| 89 | { |
| 90 | if (prog == NULL) |
| 91 | return PROGRAM_UNKNOWN; |
| 92 | |
| 93 | if (strcasecmp(prog, "TDLS") == 0) |
| 94 | return PROGRAM_TDLS; |
| 95 | if (strcasecmp(prog, "HS2") == 0) |
| 96 | return PROGRAM_HS2; |
| 97 | if (strcasecmp(prog, "HS2_R2") == 0 || |
Jouni Malinen | ba63045 | 2018-06-22 11:49:59 +0300 | [diff] [blame] | 98 | strcasecmp(prog, "HS2-R2") == 0) |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 99 | return PROGRAM_HS2_R2; |
Jouni Malinen | ba63045 | 2018-06-22 11:49:59 +0300 | [diff] [blame] | 100 | if (strcasecmp(prog, "HS2-R3") == 0) |
| 101 | return PROGRAM_HS2_R3; |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 102 | if (strcasecmp(prog, "WFD") == 0) |
| 103 | return PROGRAM_WFD; |
Amarnath Hullur Subramanyam | 659a34c | 2017-03-17 00:04:41 -0700 | [diff] [blame] | 104 | if (strcasecmp(prog, "DisplayR2") == 0) |
| 105 | return PROGRAM_DISPLAYR2; |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 106 | if (strcasecmp(prog, "PMF") == 0) |
| 107 | return PROGRAM_PMF; |
| 108 | if (strcasecmp(prog, "WPS") == 0) |
| 109 | return PROGRAM_WPS; |
| 110 | if (strcasecmp(prog, "11n") == 0) |
| 111 | return PROGRAM_HT; |
| 112 | if (strcasecmp(prog, "VHT") == 0) |
| 113 | return PROGRAM_VHT; |
| 114 | if (strcasecmp(prog, "60GHZ") == 0) |
| 115 | return PROGRAM_60GHZ; |
| 116 | if (strcasecmp(prog, "NAN") == 0) |
| 117 | return PROGRAM_NAN; |
priyadharshini gowthaman | 12dd414 | 2016-06-22 22:47:14 -0700 | [diff] [blame] | 118 | if (strcasecmp(prog, "LOC") == 0) |
| 119 | return PROGRAM_LOC; |
priyadharshini gowthaman | b4e05fc | 2016-10-13 15:02:35 -0700 | [diff] [blame] | 120 | if (strcasecmp(prog, "MBO") == 0) |
| 121 | return PROGRAM_MBO; |
Adil Saeed Musthafa | 33ea287 | 2017-04-10 23:13:24 -0700 | [diff] [blame] | 122 | if (strcasecmp(prog, "IoTLP") == 0) |
| 123 | return PROGRAM_IOTLP; |
Jouni Malinen | 5c3813a | 2017-08-26 13:30:39 +0300 | [diff] [blame] | 124 | if (strcasecmp(prog, "DPP") == 0) |
| 125 | return PROGRAM_DPP; |
Ankita Bajaj | a2cb567 | 2017-10-25 16:08:28 +0530 | [diff] [blame] | 126 | if (strcasecmp(prog, "OCE") == 0) |
| 127 | return PROGRAM_OCE; |
priyadharshini gowthaman | 0e209fc | 2018-01-26 15:15:37 -0800 | [diff] [blame] | 128 | if (strcasecmp(prog, "WPA3") == 0) |
| 129 | return PROGRAM_WPA3; |
Amarnath Hullur Subramanyam | 8f9c868 | 2018-01-30 19:01:51 -0800 | [diff] [blame] | 130 | if (strcasecmp(prog, "HE") == 0) |
| 131 | return PROGRAM_HE; |
Jouni Malinen | cd4e3c3 | 2015-10-29 12:39:56 +0200 | [diff] [blame] | 132 | |
| 133 | return PROGRAM_UNKNOWN; |
| 134 | } |
priyadharshini gowthaman | 72462ef | 2016-06-22 22:47:14 -0700 | [diff] [blame] | 135 | |
| 136 | |
| 137 | static int parse_hex(char c) |
| 138 | { |
| 139 | if (c >= '0' && c <= '9') |
| 140 | return c - '0'; |
| 141 | if (c >= 'a' && c <= 'f') |
| 142 | return c - 'a' + 10; |
| 143 | if (c >= 'A' && c <= 'F') |
| 144 | return c - 'A' + 10; |
| 145 | return -1; |
| 146 | } |
| 147 | |
| 148 | |
| 149 | static int hex_byte(const char *str) |
| 150 | { |
| 151 | int res1, res2; |
| 152 | |
| 153 | res1 = parse_hex(str[0]); |
| 154 | if (res1 < 0) |
| 155 | return -1; |
| 156 | res2 = parse_hex(str[1]); |
| 157 | if (res2 < 0) |
| 158 | return -1; |
| 159 | return (res1 << 4) | res2; |
| 160 | } |
| 161 | |
| 162 | |
Jouni Malinen | 08cf231 | 2017-09-04 13:39:47 +0300 | [diff] [blame] | 163 | int parse_hexstr(const char *hex, unsigned char *buf, size_t buflen) |
| 164 | { |
| 165 | size_t i; |
| 166 | const char *pos = hex; |
| 167 | |
| 168 | for (i = 0; i < buflen; i++) { |
| 169 | int val; |
| 170 | |
| 171 | if (*pos == '\0') |
| 172 | break; |
| 173 | val = hex_byte(pos); |
| 174 | if (val < 0) |
| 175 | return -1; |
| 176 | buf[i] = val; |
| 177 | pos += 2; |
| 178 | } |
| 179 | |
| 180 | return i; |
| 181 | } |
| 182 | |
| 183 | |
priyadharshini gowthaman | 72462ef | 2016-06-22 22:47:14 -0700 | [diff] [blame] | 184 | int parse_mac_address(struct sigma_dut *dut, const char *arg, |
| 185 | unsigned char *addr) |
| 186 | { |
| 187 | int i; |
| 188 | const char *pos = arg; |
| 189 | |
| 190 | if (strlen(arg) != 17) |
| 191 | goto fail; |
| 192 | |
| 193 | for (i = 0; i < ETH_ALEN; i++) { |
| 194 | int val; |
| 195 | |
| 196 | val = hex_byte(pos); |
| 197 | if (val < 0) |
| 198 | goto fail; |
| 199 | addr[i] = val; |
| 200 | if (i + 1 < ETH_ALEN) { |
| 201 | pos += 2; |
| 202 | if (*pos != ':') |
| 203 | goto fail; |
| 204 | pos++; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | return 0; |
| 209 | |
| 210 | fail: |
| 211 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 212 | "Invalid MAC address %s (expected format xx:xx:xx:xx:xx:xx)", |
| 213 | arg); |
| 214 | return -1; |
| 215 | } |
Rakesh Sunki | 7192dc4 | 2017-03-30 14:47:55 -0700 | [diff] [blame] | 216 | |
| 217 | |
Alexei Avshalom Lazar | 093569f | 2018-11-13 14:08:17 +0200 | [diff] [blame] | 218 | int is_60g_sigma_dut(struct sigma_dut *dut) |
Rakesh Sunki | 7192dc4 | 2017-03-30 14:47:55 -0700 | [diff] [blame] | 219 | { |
Alexei Avshalom Lazar | 093569f | 2018-11-13 14:08:17 +0200 | [diff] [blame] | 220 | return dut->program == PROGRAM_60GHZ || |
| 221 | (dut->program == PROGRAM_WPS && |
| 222 | (get_driver_type() == DRIVER_WIL6210)); |
| 223 | } |
| 224 | |
| 225 | |
| 226 | unsigned int channel_to_freq(struct sigma_dut *dut, unsigned int channel) |
| 227 | { |
| 228 | if (is_60g_sigma_dut(dut)) { |
| 229 | if (channel >= 1 && channel <= 4) |
| 230 | return 58320 + 2160 * channel; |
| 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
Rakesh Sunki | 7192dc4 | 2017-03-30 14:47:55 -0700 | [diff] [blame] | 235 | if (channel >= 1 && channel <= 13) |
| 236 | return 2407 + 5 * channel; |
| 237 | if (channel == 14) |
| 238 | return 2484; |
| 239 | if (channel >= 36 && channel <= 165) |
| 240 | return 5000 + 5 * channel; |
| 241 | |
| 242 | return 0; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | unsigned int freq_to_channel(unsigned int freq) |
| 247 | { |
| 248 | if (freq >= 2412 && freq <= 2472) |
| 249 | return (freq - 2407) / 5; |
| 250 | if (freq == 2484) |
| 251 | return 14; |
| 252 | if (freq >= 5180 && freq <= 5825) |
| 253 | return (freq - 5000) / 5; |
Alexei Avshalom Lazar | 093569f | 2018-11-13 14:08:17 +0200 | [diff] [blame] | 254 | if (freq >= 58320 && freq <= 64800) |
| 255 | return (freq - 58320) / 2160; |
Rakesh Sunki | 7192dc4 | 2017-03-30 14:47:55 -0700 | [diff] [blame] | 256 | return 0; |
| 257 | } |
Peng Xu | 769731a | 2017-05-10 17:27:28 -0700 | [diff] [blame] | 258 | |
| 259 | |
Peng Xu | 525965b | 2018-06-26 16:40:14 -0700 | [diff] [blame] | 260 | int is_ipv6_addr(const char *str) |
| 261 | { |
| 262 | struct sockaddr_in6 addr; |
| 263 | |
| 264 | return inet_pton(AF_INET6, str, &(addr.sin6_addr)); |
| 265 | } |
| 266 | |
| 267 | |
Rakesh Sunki | 8f8e74b | 2017-05-16 15:42:12 -0700 | [diff] [blame] | 268 | void convert_mac_addr_to_ipv6_lladdr(u8 *mac_addr, char *ipv6_buf, |
| 269 | size_t buf_len) |
| 270 | { |
| 271 | u8 temp = mac_addr[0] ^ 0x02; |
| 272 | |
| 273 | snprintf(ipv6_buf, buf_len, "fe80::%02x%02x:%02xff:fe%02x:%02x%02x", |
| 274 | temp, mac_addr[1], mac_addr[2], |
| 275 | mac_addr[3], mac_addr[4], mac_addr[5]); |
| 276 | } |
| 277 | |
| 278 | |
Peng Xu | 8863ec7 | 2018-08-06 11:50:37 -0700 | [diff] [blame] | 279 | size_t convert_mac_addr_to_ipv6_linklocal(const u8 *mac_addr, u8 *ipv6) |
| 280 | { |
| 281 | int i; |
| 282 | |
| 283 | ipv6[0] = 0xfe; |
| 284 | ipv6[1] = 0x80; |
| 285 | for (i = 2; i < 8; i++) |
| 286 | ipv6[i] = 0; |
| 287 | ipv6[8] = mac_addr[0] ^ 0x02; |
| 288 | ipv6[9] = mac_addr[1]; |
| 289 | ipv6[10] = mac_addr[2]; |
| 290 | ipv6[11] = 0xff; |
| 291 | ipv6[12] = 0xfe; |
| 292 | ipv6[13] = mac_addr[3]; |
| 293 | ipv6[14] = mac_addr[4]; |
| 294 | ipv6[15] = mac_addr[5]; |
| 295 | |
| 296 | return 16; |
| 297 | } |
| 298 | |
| 299 | |
Peng Xu | 769731a | 2017-05-10 17:27:28 -0700 | [diff] [blame] | 300 | #ifndef ANDROID |
| 301 | |
| 302 | size_t strlcpy(char *dest, const char *src, size_t siz) |
| 303 | { |
| 304 | const char *s = src; |
| 305 | size_t left = siz; |
| 306 | |
| 307 | if (left) { |
| 308 | /* Copy string up to the maximum size of the dest buffer */ |
| 309 | while (--left != 0) { |
| 310 | if ((*dest++ = *s++) == '\0') |
| 311 | break; |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | if (left == 0) { |
| 316 | /* Not enough room for the string; force NUL-termination */ |
| 317 | if (siz != 0) |
| 318 | *dest = '\0'; |
| 319 | while (*s++) |
| 320 | ; /* determine total src string length */ |
| 321 | } |
| 322 | |
| 323 | return s - src - 1; |
| 324 | } |
| 325 | |
| 326 | |
| 327 | size_t strlcat(char *dst, const char *str, size_t size) |
| 328 | { |
| 329 | char *pos; |
| 330 | size_t dstlen, srclen, copy; |
| 331 | |
| 332 | srclen = strlen(str); |
| 333 | for (pos = dst; pos - dst < size && *dst; pos++) |
| 334 | ; |
| 335 | dstlen = pos - dst; |
| 336 | if (*dst) |
| 337 | return dstlen + srclen; |
| 338 | if (dstlen + srclen + 1 > size) |
| 339 | copy = size - dstlen - 1; |
| 340 | else |
| 341 | copy = srclen; |
| 342 | memcpy(pos, str, copy); |
| 343 | pos[copy] = '\0'; |
| 344 | return dstlen + srclen; |
| 345 | } |
| 346 | |
| 347 | #endif /* ANDROID */ |
Ankita Bajaj | 1bde794 | 2018-01-09 19:15:01 +0530 | [diff] [blame] | 348 | |
| 349 | |
| 350 | void hex_dump(struct sigma_dut *dut, u8 *data, size_t len) |
| 351 | { |
| 352 | char buf[1024]; |
| 353 | size_t index; |
| 354 | u8 *ptr; |
| 355 | int pos; |
| 356 | |
| 357 | memset(buf, 0, sizeof(buf)); |
| 358 | ptr = data; |
| 359 | pos = 0; |
| 360 | for (index = 0; index < len; index++) { |
| 361 | pos += snprintf(&(buf[pos]), sizeof(buf) - pos, |
| 362 | "%02x ", *ptr++); |
| 363 | if (pos > 1020) |
| 364 | break; |
| 365 | } |
| 366 | sigma_dut_print(dut, DUT_MSG_INFO, "HEXDUMP len=[%d]", (int) len); |
| 367 | sigma_dut_print(dut, DUT_MSG_INFO, "buf:%s", buf); |
| 368 | } |
Peng Xu | 291d97d | 2018-01-31 16:34:03 -0800 | [diff] [blame] | 369 | |
| 370 | |
| 371 | #ifdef NL80211_SUPPORT |
| 372 | |
| 373 | void * nl80211_cmd(struct sigma_dut *dut, struct nl80211_ctx *ctx, |
| 374 | struct nl_msg *msg, int flags, uint8_t cmd) |
| 375 | { |
| 376 | return genlmsg_put(msg, 0, 0, ctx->netlink_familyid, |
| 377 | 0, flags, cmd, 0); |
| 378 | } |
| 379 | |
| 380 | |
| 381 | static struct nl_msg * |
| 382 | nl80211_ifindex_msg(struct sigma_dut *dut, struct nl80211_ctx *ctx, int ifindex, |
| 383 | int flags, uint8_t cmd) |
| 384 | { |
| 385 | struct nl_msg *msg; |
| 386 | |
| 387 | msg = nlmsg_alloc(); |
| 388 | if (!msg) { |
| 389 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 390 | "Failed to allocate NL message"); |
| 391 | return NULL; |
| 392 | } |
| 393 | |
| 394 | if (!nl80211_cmd(dut, ctx, msg, flags, cmd) || |
| 395 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) { |
| 396 | nlmsg_free(msg); |
| 397 | return NULL; |
| 398 | } |
| 399 | |
| 400 | return msg; |
| 401 | } |
| 402 | |
| 403 | |
| 404 | struct nl_msg * nl80211_drv_msg(struct sigma_dut *dut, struct nl80211_ctx *ctx, |
| 405 | int ifindex, int flags, uint8_t cmd) |
| 406 | { |
| 407 | return nl80211_ifindex_msg(dut, ctx, ifindex, flags, cmd); |
| 408 | } |
| 409 | |
| 410 | |
| 411 | static int ack_handler(struct nl_msg *msg, void *arg) |
| 412 | { |
| 413 | int *err = arg; |
| 414 | *err = 0; |
| 415 | return NL_STOP; |
| 416 | } |
| 417 | |
| 418 | |
| 419 | static int finish_handler(struct nl_msg *msg, void *arg) |
| 420 | { |
| 421 | int *ret = arg; |
| 422 | *ret = 0; |
| 423 | return NL_SKIP; |
| 424 | } |
| 425 | |
| 426 | |
| 427 | static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, |
| 428 | void *arg) |
| 429 | { |
| 430 | int *ret = arg; |
| 431 | *ret = err->error; |
| 432 | return NL_SKIP; |
| 433 | } |
| 434 | |
| 435 | |
| 436 | int send_and_recv_msgs(struct sigma_dut *dut, struct nl80211_ctx *ctx, |
| 437 | struct nl_msg *nlmsg, |
| 438 | int (*valid_handler)(struct nl_msg *, void *), |
| 439 | void *valid_data) |
| 440 | { |
| 441 | struct nl_cb *cb; |
| 442 | int err = -ENOMEM; |
| 443 | |
| 444 | if (!nlmsg) |
| 445 | return -ENOMEM; |
| 446 | |
| 447 | cb = nl_cb_alloc(NL_CB_DEFAULT); |
| 448 | if (!cb) |
| 449 | goto out; |
| 450 | |
| 451 | err = nl_send_auto_complete(ctx->sock, nlmsg); |
| 452 | if (err < 0) { |
| 453 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 454 | "nl80211: failed to send err=%d", err); |
| 455 | goto out; |
| 456 | } |
| 457 | |
| 458 | err = 1; |
| 459 | |
| 460 | nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err); |
| 461 | nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err); |
| 462 | nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err); |
| 463 | |
| 464 | if (valid_handler) |
| 465 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, |
| 466 | valid_handler, valid_data); |
| 467 | |
| 468 | while (err > 0) { |
| 469 | int res = nl_recvmsgs(ctx->sock, cb); |
| 470 | |
| 471 | if (res < 0) { |
| 472 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 473 | "nl80211: %s->nl_recvmsgs failed: res=%d, err=%d", |
| 474 | __func__, res, err); |
| 475 | } |
| 476 | } |
| 477 | out: |
| 478 | nl_cb_put(cb); |
| 479 | if (!valid_handler && valid_data == (void *) -1) { |
| 480 | if (nlmsg) { |
| 481 | struct nlmsghdr *hdr = nlmsg_hdr(nlmsg); |
| 482 | void *data = nlmsg_data(hdr); |
| 483 | int len = hdr->nlmsg_len - NLMSG_HDRLEN; |
| 484 | |
| 485 | memset(data, 0, len); |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | nlmsg_free(nlmsg); |
| 490 | return err; |
| 491 | } |
| 492 | |
| 493 | |
| 494 | struct nl80211_ctx * nl80211_init(struct sigma_dut *dut) |
| 495 | { |
| 496 | struct nl80211_ctx *ctx; |
| 497 | |
| 498 | ctx = calloc(1, sizeof(struct nl80211_ctx)); |
| 499 | if (!ctx) { |
| 500 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 501 | "Failed to alloc nl80211_ctx"); |
| 502 | return NULL; |
| 503 | } |
| 504 | |
| 505 | ctx->sock = nl_socket_alloc(); |
| 506 | if (!ctx->sock) { |
| 507 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 508 | "Failed to create NL socket, err: %s", |
| 509 | strerror(errno)); |
| 510 | goto cleanup; |
| 511 | } |
| 512 | |
| 513 | if (nl_connect(ctx->sock, NETLINK_GENERIC)) { |
| 514 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 515 | "Could not connect socket, err: %s", |
| 516 | strerror(errno)); |
| 517 | goto cleanup; |
| 518 | } |
| 519 | |
| 520 | if (nl_socket_set_buffer_size(ctx->sock, SOCK_BUF_SIZE, 0) < 0) { |
| 521 | sigma_dut_print(dut, DUT_MSG_INFO, |
| 522 | "Could not set nl_socket RX buffer size for sock: %s", |
| 523 | strerror(errno)); |
| 524 | } |
| 525 | |
| 526 | ctx->netlink_familyid = genl_ctrl_resolve(ctx->sock, "nl80211"); |
| 527 | if (ctx->netlink_familyid < 0) { |
| 528 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 529 | "Could not resolve nl80211 family id"); |
| 530 | goto cleanup; |
| 531 | } |
| 532 | |
| 533 | ctx->nlctrl_familyid = genl_ctrl_resolve(ctx->sock, "nlctrl"); |
| 534 | if (ctx->nlctrl_familyid < 0) { |
| 535 | sigma_dut_print(dut, DUT_MSG_ERROR, |
| 536 | "net link family nlctrl is not present: %d err:%s", |
| 537 | ctx->nlctrl_familyid, strerror(errno)); |
| 538 | goto cleanup; |
| 539 | } |
| 540 | |
| 541 | return ctx; |
| 542 | |
| 543 | cleanup: |
| 544 | if (ctx->sock) |
| 545 | nl_socket_free(ctx->sock); |
| 546 | |
| 547 | free(ctx); |
| 548 | return NULL; |
| 549 | } |
| 550 | |
| 551 | |
| 552 | void nl80211_deinit(struct sigma_dut *dut, struct nl80211_ctx *ctx) |
| 553 | { |
| 554 | if (!ctx || !ctx->sock) { |
| 555 | sigma_dut_print(dut, DUT_MSG_ERROR, "%s: ctx/sock is NULL", |
| 556 | __func__); |
| 557 | return; |
| 558 | } |
| 559 | nl_socket_free(ctx->sock); |
| 560 | free(ctx); |
| 561 | } |
| 562 | |
| 563 | #endif /* NL80211_SUPPORT */ |