src/drivers/driver_macsec_qca.c

   1 /*
   2  * Wired Ethernet driver interface for QCA MACsec driver
   3  * Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2004, Gunter Burchardt <tira@isx.de>
   5  * Copyright (c) 2013-2014, Qualcomm Atheros, Inc.
   6  *
   7  * This software may be distributed under the terms of the BSD license.
   8  * See README for more details.
   9  */
  10
  11 #include "includes.h"
  12 #include <sys/ioctl.h>
  13 #include <net/if.h>
  14 #include <inttypes.h>
  15 #ifdef __linux__
  16 #include <netpacket/packet.h>
  17 #include <net/if_arp.h>
  18 #include <net/if.h>
  19 #endif /* __linux__ */
  20 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
  21 #include <net/if_dl.h>
  22 #include <net/if_media.h>
  23 #endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) */
  24 #ifdef __sun__
  25 #include <sys/sockio.h>
  26 #endif /* __sun__ */
  27
  28 #include "utils/common.h"
  29 #include "utils/eloop.h"
  30 #include "common/defs.h"
  31 #include "common/ieee802_1x_defs.h"
  32 #include "pae/ieee802_1x_kay.h"
  33 #include "driver.h"
  34
  35 #include "nss_macsec_secy.h"
  36 #include "nss_macsec_secy_rx.h"
  37 #include "nss_macsec_secy_tx.h"
  38
  39 #define MAXSC 16
  40
  41 /* TCI field definition */
  42 #define TCI_ES                0x40
  43 #define TCI_SC                0x20
  44 #define TCI_SCB               0x10
  45 #define TCI_E                 0x08
  46 #define TCI_C                 0x04
  47
  48 #ifdef _MSC_VER
  49 #pragma pack(push, 1)
  50 #endif /* _MSC_VER */
  51
  52 #ifdef _MSC_VER
  53 #pragma pack(pop)
  54 #endif /* _MSC_VER */
  55
  56 static const u8 pae_group_addr[ETH_ALEN] =
  57 { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
  58
  59 struct macsec_qca_data {
  60         char ifname[IFNAMSIZ + 1];
  61         u32 secy_id;
  62         void *ctx;
  63
  64         int sock; /* raw packet socket for driver access */
  65         int pf_sock;
  66         int membership, multi, iff_allmulti, iff_up;
  67
  68         /* shadow */
  69         Boolean always_include_sci;
  70         Boolean use_es;
  71         Boolean use_scb;
  72         Boolean protect_frames;
  73         Boolean replay_protect;
  74         u32 replay_window;
  75 };
  76
  77
  78 static int macsec_qca_multicast_membership(int sock, int ifindex,
  79                                            const u8 *addr, int add)
  80 {
  81 #ifdef __linux__
  82         struct packet_mreq mreq;
  83
  84         if (sock < 0)
  85                 return -1;
  86
  87         os_memset(&mreq, 0, sizeof(mreq));
  88         mreq.mr_ifindex = ifindex;
  89         mreq.mr_type = PACKET_MR_MULTICAST;
  90         mreq.mr_alen = ETH_ALEN;
  91         os_memcpy(mreq.mr_address, addr, ETH_ALEN);
  92
  93         if (setsockopt(sock, SOL_PACKET,
  94                        add ? PACKET_ADD_MEMBERSHIP : PACKET_DROP_MEMBERSHIP,
  95                        &mreq, sizeof(mreq)) < 0) {
  96                 wpa_printf(MSG_ERROR, "setsockopt: %s", strerror(errno));
  97                 return -1;
  98         }
  99         return 0;
 100 #else /* __linux__ */
 101         return -1;
 102 #endif /* __linux__ */
 103 }
 104
 105
 106 static int macsec_qca_get_ssid(void *priv, u8 *ssid)
 107 {
 108         ssid[0] = 0;
 109         return 0;
 110 }
 111
 112
 113 static int macsec_qca_get_bssid(void *priv, u8 *bssid)
 114 {
 115         /* Report PAE group address as the "BSSID" for macsec connection. */
 116         os_memcpy(bssid, pae_group_addr, ETH_ALEN);
 117         return 0;
 118 }
 119
 120
 121 static int macsec_qca_get_capa(void *priv, struct wpa_driver_capa *capa)
 122 {
 123         os_memset(capa, 0, sizeof(*capa));
 124         capa->flags = WPA_DRIVER_FLAGS_WIRED;
 125         return 0;
 126 }
 127
 128
 129 static int macsec_qca_get_ifflags(const char *ifname, int *flags)
 130 {
 131         struct ifreq ifr;
 132         int s;
 133
 134         s = socket(PF_INET, SOCK_DGRAM, 0);
 135         if (s < 0) {
 136                 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
 137                 return -1;
 138         }
 139
 140         os_memset(&ifr, 0, sizeof(ifr));
 141         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 142         if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
 143                 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
 144                            strerror(errno));
 145                 close(s);
 146                 return -1;
 147         }
 148         close(s);
 149         *flags = ifr.ifr_flags & 0xffff;
 150         return 0;
 151 }
 152
 153
 154 static int macsec_qca_set_ifflags(const char *ifname, int flags)
 155 {
 156         struct ifreq ifr;
 157         int s;
 158
 159         s = socket(PF_INET, SOCK_DGRAM, 0);
 160         if (s < 0) {
 161                 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
 162                 return -1;
 163         }
 164
 165         os_memset(&ifr, 0, sizeof(ifr));
 166         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 167         ifr.ifr_flags = flags & 0xffff;
 168         if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
 169                 wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
 170                            strerror(errno));
 171                 close(s);
 172                 return -1;
 173         }
 174         close(s);
 175         return 0;
 176 }
 177
 178
 179 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
 180 static int macsec_qca_get_ifstatus(const char *ifname, int *status)
 181 {
 182         struct ifmediareq ifmr;
 183         int s;
 184
 185         s = socket(PF_INET, SOCK_DGRAM, 0);
 186         if (s < 0) {
 187                 wpa_print(MSG_ERROR, "socket: %s", strerror(errno));
 188                 return -1;
 189         }
 190
 191         os_memset(&ifmr, 0, sizeof(ifmr));
 192         os_strlcpy(ifmr.ifm_name, ifname, IFNAMSIZ);
 193         if (ioctl(s, SIOCGIFMEDIA, (caddr_t) &ifmr) < 0) {
 194                 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFMEDIA]: %s",
 195                            strerror(errno));
 196                 close(s);
 197                 return -1;
 198         }
 199         close(s);
 200         *status = (ifmr.ifm_status & (IFM_ACTIVE | IFM_AVALID)) ==
 201                 (IFM_ACTIVE | IFM_AVALID);
 202
 203         return 0;
 204 }
 205 #endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
 206
 207
 208 static int macsec_qca_multi(const char *ifname, const u8 *addr, int add)
 209 {
 210         struct ifreq ifr;
 211         int s;
 212
 213 #ifdef __sun__
 214         return -1;
 215 #endif /* __sun__ */
 216
 217         s = socket(PF_INET, SOCK_DGRAM, 0);
 218         if (s < 0) {
 219                 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
 220                 return -1;
 221         }
 222
 223         os_memset(&ifr, 0, sizeof(ifr));
 224         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 225 #ifdef __linux__
 226         ifr.ifr_hwaddr.sa_family = AF_UNSPEC;
 227         os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
 228 #endif /* __linux__ */
 229 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
 230         {
 231                 struct sockaddr_dl *dlp;
 232                 dlp = (struct sockaddr_dl *) &ifr.ifr_addr;
 233                 dlp->sdl_len = sizeof(struct sockaddr_dl);
 234                 dlp->sdl_family = AF_LINK;
 235                 dlp->sdl_index = 0;
 236                 dlp->sdl_nlen = 0;
 237                 dlp->sdl_alen = ETH_ALEN;
 238                 dlp->sdl_slen = 0;
 239                 os_memcpy(LLADDR(dlp), addr, ETH_ALEN);
 240         }
 241 #endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
 242 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
 243         {
 244                 struct sockaddr *sap;
 245                 sap = (struct sockaddr *) &ifr.ifr_addr;
 246                 sap->sa_len = sizeof(struct sockaddr);
 247                 sap->sa_family = AF_UNSPEC;
 248                 os_memcpy(sap->sa_data, addr, ETH_ALEN);
 249         }
 250 #endif /* defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__) */
 251
 252         if (ioctl(s, add ? SIOCADDMULTI : SIOCDELMULTI, (caddr_t) &ifr) < 0) {
 253                 wpa_printf(MSG_ERROR, "ioctl[SIOC{ADD/DEL}MULTI]: %s",
 254                            strerror(errno));
 255                 close(s);
 256                 return -1;
 257         }
 258         close(s);
 259         return 0;
 260 }
 261
 262
 263 static void __macsec_drv_init(struct macsec_qca_data *drv)
 264 {
 265         int ret = 0;
 266         fal_rx_ctl_filt_t rx_ctl_filt;
 267         fal_tx_ctl_filt_t tx_ctl_filt;
 268
 269         wpa_printf(MSG_INFO, "%s: secy_id=%d", __func__, drv->secy_id);
 270
 271         /* Enable Secy and Let EAPoL bypass */
 272         ret = nss_macsec_secy_en_set(drv->secy_id, TRUE);
 273         if (ret)
 274                 wpa_printf(MSG_ERROR, "nss_macsec_secy_en_set: FAIL");
 275
 276         ret = nss_macsec_secy_sc_sa_mapping_mode_set(drv->secy_id,
 277                                                      FAL_SC_SA_MAP_1_4);
 278         if (ret)
 279                 wpa_printf(MSG_ERROR,
 280                            "nss_macsec_secy_sc_sa_mapping_mode_set: FAIL");
 281
 282         os_memset(&rx_ctl_filt, 0, sizeof(rx_ctl_filt));
 283         rx_ctl_filt.bypass = 1;
 284         rx_ctl_filt.match_type = IG_CTL_COMPARE_ETHER_TYPE;
 285         rx_ctl_filt.match_mask = 0xffff;
 286         rx_ctl_filt.ether_type_da_range = 0x888e;
 287         ret = nss_macsec_secy_rx_ctl_filt_set(drv->secy_id, 0, &rx_ctl_filt);
 288         if (ret)
 289                 wpa_printf(MSG_ERROR, "nss_macsec_secy_rx_ctl_filt_set: FAIL");
 290
 291         os_memset(&tx_ctl_filt, 0, sizeof(tx_ctl_filt));
 292         tx_ctl_filt.bypass = 1;
 293         tx_ctl_filt.match_type = EG_CTL_COMPARE_ETHER_TYPE;
 294         tx_ctl_filt.match_mask = 0xffff;
 295         tx_ctl_filt.ether_type_da_range = 0x888e;
 296         ret = nss_macsec_secy_tx_ctl_filt_set(drv->secy_id, 0, &tx_ctl_filt);
 297         if (ret)
 298                 wpa_printf(MSG_ERROR, "nss_macsec_secy_tx_ctl_filt_set: FAIL");
 299 }
 300
 301
 302 static void __macsec_drv_deinit(struct macsec_qca_data *drv)
 303 {
 304         nss_macsec_secy_en_set(drv->secy_id, FALSE);
 305         nss_macsec_secy_rx_sc_del_all(drv->secy_id);
 306         nss_macsec_secy_tx_sc_del_all(drv->secy_id);
 307 }
 308
 309
 310 static void * macsec_qca_init(void *ctx, const char *ifname)
 311 {
 312         struct macsec_qca_data *drv;
 313         int flags;
 314
 315         drv = os_zalloc(sizeof(*drv));
 316         if (drv == NULL)
 317                 return NULL;
 318         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
 319         drv->ctx = ctx;
 320
 321         /* Board specific settings */
 322         if (os_memcmp("eth2", drv->ifname, 4) == 0)
 323                 drv->secy_id = 1;
 324         else if (os_memcmp("eth3", drv->ifname, 4) == 0)
 325                 drv->secy_id = 2;
 326         else
 327                 drv->secy_id = -1;
 328
 329 #ifdef __linux__
 330         drv->pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
 331         if (drv->pf_sock < 0)
 332                 wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno));
 333 #else /* __linux__ */
 334         drv->pf_sock = -1;
 335 #endif /* __linux__ */
 336
 337         if (macsec_qca_get_ifflags(ifname, &flags) == 0 &&
 338             !(flags & IFF_UP) &&
 339             macsec_qca_set_ifflags(ifname, flags | IFF_UP) == 0) {
 340                 drv->iff_up = 1;
 341         }
 342
 343         if (macsec_qca_multicast_membership(drv->pf_sock,
 344                                             if_nametoindex(drv->ifname),
 345                                             pae_group_addr, 1) == 0) {
 346                 wpa_printf(MSG_DEBUG,
 347                            "%s: Added multicast membership with packet socket",
 348                            __func__);
 349                 drv->membership = 1;
 350         } else if (macsec_qca_multi(ifname, pae_group_addr, 1) == 0) {
 351                 wpa_printf(MSG_DEBUG,
 352                            "%s: Added multicast membership with SIOCADDMULTI",
 353                            __func__);
 354                 drv->multi = 1;
 355         } else if (macsec_qca_get_ifflags(ifname, &flags) < 0) {
 356                 wpa_printf(MSG_INFO, "%s: Could not get interface flags",
 357                            __func__);
 358                 os_free(drv);
 359                 return NULL;
 360         } else if (flags & IFF_ALLMULTI) {
 361                 wpa_printf(MSG_DEBUG,
 362                            "%s: Interface is already configured for multicast",
 363                            __func__);
 364         } else if (macsec_qca_set_ifflags(ifname, flags | IFF_ALLMULTI) < 0) {
 365                 wpa_printf(MSG_INFO, "%s: Failed to enable allmulti",
 366                            __func__);
 367                 os_free(drv);
 368                 return NULL;
 369         } else {
 370                 wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode", __func__);
 371                 drv->iff_allmulti = 1;
 372         }
 373 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
 374         {
 375                 int status;
 376                 wpa_printf(MSG_DEBUG, "%s: waiting for link to become active",
 377                            __func__);
 378                 while (macsec_qca_get_ifstatus(ifname, &status) == 0 &&
 379                        status == 0)
 380                         sleep(1);
 381         }
 382 #endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
 383
 384         return drv;
 385 }
 386
 387
 388 static void macsec_qca_deinit(void *priv)
 389 {
 390         struct macsec_qca_data *drv = priv;
 391         int flags;
 392
 393         if (drv->membership &&
 394             macsec_qca_multicast_membership(drv->pf_sock,
 395                                             if_nametoindex(drv->ifname),
 396                                             pae_group_addr, 0) < 0) {
 397                 wpa_printf(MSG_DEBUG,
 398                            "%s: Failed to remove PAE multicast group (PACKET)",
 399                            __func__);
 400         }
 401
 402         if (drv->multi &&
 403             macsec_qca_multi(drv->ifname, pae_group_addr, 0) < 0) {
 404                 wpa_printf(MSG_DEBUG,
 405                            "%s: Failed to remove PAE multicast group (SIOCDELMULTI)",
 406                            __func__);
 407         }
 408
 409         if (drv->iff_allmulti &&
 410             (macsec_qca_get_ifflags(drv->ifname, &flags) < 0 ||
 411              macsec_qca_set_ifflags(drv->ifname, flags & ~IFF_ALLMULTI) < 0)) {
 412                 wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode",
 413                            __func__);
 414         }
 415
 416         if (drv->iff_up &&
 417             macsec_qca_get_ifflags(drv->ifname, &flags) == 0 &&
 418             (flags & IFF_UP) &&
 419             macsec_qca_set_ifflags(drv->ifname, flags & ~IFF_UP) < 0) {
 420                 wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down",
 421                            __func__);
 422         }
 423
 424         if (drv->pf_sock != -1)
 425                 close(drv->pf_sock);
 426
 427         os_free(drv);
 428 }
 429
 430
 431 static int macsec_qca_macsec_init(void *priv, struct macsec_init_params *params)
 432 {
 433         struct macsec_qca_data *drv = priv;
 434
 435         drv->always_include_sci = params->always_include_sci;
 436         drv->use_es = params->use_es;
 437         drv->use_scb = params->use_scb;
 438
 439         wpa_printf(MSG_DEBUG, "%s: es=%d, scb=%d, sci=%d",
 440                    __func__, drv->use_es, drv->use_scb,
 441                    drv->always_include_sci);
 442
 443         __macsec_drv_init(drv);
 444
 445         return 0;
 446 }
 447
 448
 449 static int macsec_qca_macsec_deinit(void *priv)
 450 {
 451         struct macsec_qca_data *drv = priv;
 452
 453         wpa_printf(MSG_DEBUG, "%s", __func__);
 454
 455         __macsec_drv_deinit(drv);
 456
 457         return 0;
 458 }
 459
 460
 461 static int macsec_qca_enable_protect_frames(void *priv, Boolean enabled)
 462 {
 463         struct macsec_qca_data *drv = priv;
 464         int ret = 0;
 465
 466         wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 467
 468         drv->protect_frames = enabled;
 469
 470         return ret;
 471 }
 472
 473
 474 static int macsec_qca_set_replay_protect(void *priv, Boolean enabled,
 475                                          unsigned int window)
 476 {
 477         struct macsec_qca_data *drv = priv;
 478         int ret = 0;
 479
 480         wpa_printf(MSG_DEBUG, "%s: enabled=%d, win=%u",
 481                    __func__, enabled, window);
 482
 483         drv->replay_protect = enabled;
 484         drv->replay_window = window;
 485
 486         return ret;
 487 }
 488
 489
 490 static int macsec_qca_set_current_cipher_suite(void *priv, u64 cs)
 491 {
 492         if (cs != CS_ID_GCM_AES_128) {
 493                 wpa_printf(MSG_ERROR,
 494                            "%s: NOT supported CipherSuite: %016" PRIx64,
 495                            __func__, cs);
 496                 return -1;
 497         }
 498
 499         /* Support default Cipher Suite 0080020001000001 (GCM-AES-128) */
 500         wpa_printf(MSG_DEBUG, "%s: default support aes-gcm-128", __func__);
 501
 502         return 0;
 503 }
 504
 505
 506 static int macsec_qca_enable_controlled_port(void *priv, Boolean enabled)
 507 {
 508         struct macsec_qca_data *drv = priv;
 509         int ret = 0;
 510
 511         wpa_printf(MSG_DEBUG, "%s: enable=%d", __func__, enabled);
 512
 513         ret += nss_macsec_secy_controlled_port_en_set(drv->secy_id, enabled);
 514
 515         return ret;
 516 }
 517
 518
 519 static int macsec_qca_get_receive_lowest_pn(void *priv, struct receive_sa *sa)
 520 {
 521         struct macsec_qca_data *drv = priv;
 522         int ret = 0;
 523         u32 next_pn = 0;
 524         bool enabled = FALSE;
 525         u32 win;
 526         u32 channel = sa->sc->channel;
 527
 528         ret += nss_macsec_secy_rx_sa_next_pn_get(drv->secy_id, channel, sa->an,
 529                                                  &next_pn);
 530         ret += nss_macsec_secy_rx_sc_replay_protect_get(drv->secy_id, channel,
 531                                                         &enabled);
 532         ret += nss_macsec_secy_rx_sc_anti_replay_window_get(drv->secy_id,
 533                                                             channel, &win);
 534
 535         if (enabled)
 536                 sa->lowest_pn = (next_pn > win) ? (next_pn - win) : 1;
 537         else
 538                 sa->lowest_pn = next_pn;
 539
 540         wpa_printf(MSG_DEBUG, "%s: lpn=0x%x", __func__, sa->lowest_pn);
 541
 542         return ret;
 543 }
 544
 545
 546 static int macsec_qca_get_transmit_next_pn(void *priv, struct transmit_sa *sa)
 547 {
 548         struct macsec_qca_data *drv = priv;
 549         int ret = 0;
 550         u32 channel = sa->sc->channel;
 551
 552         ret += nss_macsec_secy_tx_sa_next_pn_get(drv->secy_id, channel, sa->an,
 553                                                  &sa->next_pn);
 554
 555         wpa_printf(MSG_DEBUG, "%s: npn=0x%x", __func__, sa->next_pn);
 556
 557         return ret;
 558 }
 559
 560
 561 int macsec_qca_set_transmit_next_pn(void *priv, struct transmit_sa *sa)
 562 {
 563         struct macsec_qca_data *drv = priv;
 564         int ret = 0;
 565         u32 channel = sa->sc->channel;
 566
 567
 568         ret += nss_macsec_secy_tx_sa_next_pn_set(drv->secy_id, channel, sa->an,
 569                                                  sa->next_pn);
 570
 571         wpa_printf(MSG_INFO, "%s: npn=0x%x", __func__, sa->next_pn);
 572
 573         return ret;
 574 }
 575
 576
 577 static int macsec_qca_get_available_receive_sc(void *priv, u32 *channel)
 578 {
 579         struct macsec_qca_data *drv = priv;
 580         int ret = 0;
 581         u32 sc_ch = 0;
 582         bool in_use = FALSE;
 583
 584         for (sc_ch = 0; sc_ch < MAXSC; sc_ch++) {
 585                 ret = nss_macsec_secy_rx_sc_in_used_get(drv->secy_id, sc_ch,
 586                                                         &in_use);
 587                 if (ret)
 588                         continue;
 589
 590                 if (!in_use) {
 591                         *channel = sc_ch;
 592                         wpa_printf(MSG_DEBUG, "%s: channel=%d",
 593                                    __func__, *channel);
 594                         return 0;
 595                 }
 596         }
 597
 598         wpa_printf(MSG_DEBUG, "%s: no available channel", __func__);
 599
 600         return -1;
 601 }
 602
 603
 604 static int macsec_qca_create_receive_sc(void *priv, u32 channel,
 605                                         const u8 *sci_addr, u16 sci_port,
 606                                         unsigned int conf_offset,
 607                                         int validation)
 608 {
 609         struct macsec_qca_data *drv = priv;
 610         int ret = 0;
 611         fal_rx_prc_lut_t entry;
 612         fal_rx_sc_validate_frame_e vf;
 613         enum validate_frames validate_frames = validation;
 614
 615         wpa_printf(MSG_DEBUG, "%s: channel=%d", __func__, channel);
 616
 617         /* rx prc lut */
 618         os_memset(&entry, 0, sizeof(entry));
 619
 620         os_memcpy(entry.sci, sci_addr, ETH_ALEN);
 621         entry.sci[6] = (sci_port >> 8) & 0xf;
 622         entry.sci[7] = sci_port & 0xf;
 623         entry.sci_mask = 0xf;
 624
 625         entry.valid = 1;
 626         entry.channel = channel;
 627         entry.action = FAL_RX_PRC_ACTION_PROCESS;
 628         entry.offset = conf_offset;
 629
 630         /* rx validate frame  */
 631         if (validate_frames == Strict)
 632                 vf = FAL_RX_SC_VALIDATE_FRAME_STRICT;
 633         else if (validate_frames == Checked)
 634                 vf = FAL_RX_SC_VALIDATE_FRAME_CHECK;
 635         else
 636                 vf = FAL_RX_SC_VALIDATE_FRAME_DISABLED;
 637
 638         ret += nss_macsec_secy_rx_prc_lut_set(drv->secy_id, channel, &entry);
 639         ret += nss_macsec_secy_rx_sc_create(drv->secy_id, channel);
 640         ret += nss_macsec_secy_rx_sc_validate_frame_set(drv->secy_id, channel,
 641                                                         vf);
 642         ret += nss_macsec_secy_rx_sc_replay_protect_set(drv->secy_id, channel,
 643                                                         drv->replay_protect);
 644         ret += nss_macsec_secy_rx_sc_anti_replay_window_set(drv->secy_id,
 645                                                             channel,
 646                                                             drv->replay_window);
 647
 648         return ret;
 649 }
 650
 651
 652 static int macsec_qca_delete_receive_sc(void *priv, u32 channel)
 653 {
 654         struct macsec_qca_data *drv = priv;
 655         int ret = 0;
 656         fal_rx_prc_lut_t entry;
 657
 658         wpa_printf(MSG_DEBUG, "%s: channel=%d", __func__, channel);
 659
 660         /* rx prc lut */
 661         os_memset(&entry, 0, sizeof(entry));
 662
 663         ret += nss_macsec_secy_rx_sc_del(drv->secy_id, channel);
 664         ret += nss_macsec_secy_rx_prc_lut_set(drv->secy_id, channel, &entry);
 665
 666         return ret;
 667 }
 668
 669
 670 static int macsec_qca_create_receive_sa(void *priv, u32 channel, u8 an,
 671                                         u32 lowest_pn, const u8 *sak)
 672 {
 673         struct macsec_qca_data *drv = priv;
 674         int ret = 0;
 675         fal_rx_sak_t rx_sak;
 676         int i = 0;
 677
 678         wpa_printf(MSG_DEBUG, "%s, channel=%d, an=%d, lpn=0x%x",
 679                    __func__, channel, an, lowest_pn);
 680
 681         os_memset(&rx_sak, 0, sizeof(rx_sak));
 682         for (i = 0; i < 16; i++)
 683                 rx_sak.sak[i] = sak[15 - i];
 684
 685         ret += nss_macsec_secy_rx_sa_create(drv->secy_id, channel, an);
 686         ret += nss_macsec_secy_rx_sak_set(drv->secy_id, channel, an, &rx_sak);
 687
 688         return ret;
 689 }
 690
 691
 692 static int macsec_qca_enable_receive_sa(void *priv, u32 channel, u8 an)
 693 {
 694         struct macsec_qca_data *drv = priv;
 695         int ret = 0;
 696
 697         wpa_printf(MSG_DEBUG, "%s: channel=%d, an=%d", __func__, channel, an);
 698
 699         ret += nss_macsec_secy_rx_sa_en_set(drv->secy_id, channel, an, TRUE);
 700
 701         return ret;
 702 }
 703
 704
 705 static int macsec_qca_disable_receive_sa(void *priv, u32 channel, u8 an)
 706 {
 707         struct macsec_qca_data *drv = priv;
 708         int ret = 0;
 709
 710         wpa_printf(MSG_DEBUG, "%s: channel=%d, an=%d", __func__, channel, an);
 711
 712         ret += nss_macsec_secy_rx_sa_en_set(drv->secy_id, channel, an, FALSE);
 713
 714         return ret;
 715 }
 716
 717
 718 static int macsec_qca_get_available_transmit_sc(void *priv, u32 *channel)
 719 {
 720         struct macsec_qca_data *drv = priv;
 721         int ret = 0;
 722         u32 sc_ch = 0;
 723         bool in_use = FALSE;
 724
 725         for (sc_ch = 0; sc_ch < MAXSC; sc_ch++) {
 726                 ret = nss_macsec_secy_tx_sc_in_used_get(drv->secy_id, sc_ch,
 727                                                         &in_use);
 728                 if (ret)
 729                         continue;
 730
 731                 if (!in_use) {
 732                         *channel = sc_ch;
 733                         wpa_printf(MSG_DEBUG, "%s: channel=%d",
 734                                    __func__, *channel);
 735                         return 0;
 736                 }
 737         }
 738
 739         wpa_printf(MSG_DEBUG, "%s: no avaiable channel", __func__);
 740
 741         return -1;
 742 }
 743
 744
 745 static int macsec_qca_create_transmit_sc(void *priv, u32 channel,
 746                                          const u8 *sci_addr, u16 sci_port,
 747                                          unsigned int conf_offset)
 748 {
 749         struct macsec_qca_data *drv = priv;
 750         int ret = 0;
 751         fal_tx_class_lut_t entry;
 752         u8 psci[ETH_ALEN + 2];
 753
 754         wpa_printf(MSG_DEBUG, "%s: channel=%d", __func__, channel);
 755
 756         /* class lut */
 757         os_memset(&entry, 0, sizeof(entry));
 758
 759         entry.valid = 1;
 760         entry.action = FAL_TX_CLASS_ACTION_FORWARD;
 761         entry.channel = channel;
 762
 763         os_memcpy(psci, sci_addr, ETH_ALEN);
 764         psci[6] = (sci_port >> 8) & 0xf;
 765         psci[7] = sci_port & 0xf;
 766
 767         ret += nss_macsec_secy_tx_class_lut_set(drv->secy_id, channel, &entry);
 768         ret += nss_macsec_secy_tx_sc_create(drv->secy_id, channel, psci, 8);
 769         ret += nss_macsec_secy_tx_sc_protect_set(drv->secy_id, channel,
 770                                                  drv->protect_frames);
 771         ret += nss_macsec_secy_tx_sc_confidentiality_offset_set(drv->secy_id,
 772                                                                 channel,
 773                                                                 conf_offset);
 774
 775         return ret;
 776 }
 777
 778
 779 static int macsec_qca_delete_transmit_sc(void *priv, u32 channel)
 780 {
 781         struct macsec_qca_data *drv = priv;
 782         int ret = 0;
 783         fal_tx_class_lut_t entry;
 784
 785         wpa_printf(MSG_DEBUG, "%s: channel=%d", __func__, channel);
 786
 787         /* class lut */
 788         os_memset(&entry, 0, sizeof(entry));
 789
 790         ret += nss_macsec_secy_tx_class_lut_set(drv->secy_id, channel, &entry);
 791         ret += nss_macsec_secy_tx_sc_del(drv->secy_id, channel);
 792
 793         return ret;
 794 }
 795
 796
 797 static int macsec_qca_create_transmit_sa(void *priv, struct transmit_sa *sa)
 798 {
 799         struct macsec_qca_data *drv = priv;
 800         int ret = 0;
 801         u8 tci = 0;
 802         fal_tx_sak_t tx_sak;
 803         int i;
 804         u32 channel = sa->sc->channel;
 805
 806         wpa_printf(MSG_DEBUG,
 807                    "%s: channel=%d, an=%d, next_pn=0x%x, confidentiality=%d",
 808                    __func__, channel, sa->an, sa->next_pn, sa->confidentiality);
 809
 810         if (drv->always_include_sci)
 811                 tci |= TCI_SC;
 812         else if (drv->use_es)
 813                 tci |= TCI_ES;
 814         else if (drv->use_scb)
 815                 tci |= TCI_SCB;
 816
 817         if (sa->confidentiality)
 818                 tci |= TCI_E | TCI_C;
 819
 820         os_memset(&tx_sak, 0, sizeof(tx_sak));
 821         for (i = 0; i < 16; i++)
 822                 tx_sak.sak[i] = sa->pkey->key[15 - i];
 823
 824         ret += nss_macsec_secy_tx_sa_next_pn_set(drv->secy_id, channel, sa->an,
 825                                                  sa->next_pn);
 826         ret += nss_macsec_secy_tx_sak_set(drv->secy_id, channel, sa->an,
 827                                           &tx_sak);
 828         ret += nss_macsec_secy_tx_sc_tci_7_2_set(drv->secy_id, channel,
 829                                                  (tci >> 2));
 830         ret += nss_macsec_secy_tx_sc_an_set(drv->secy_id, channel, sa->an);
 831
 832         return ret;
 833 }
 834
 835
 836 static int macsec_qca_enable_transmit_sa(void *priv, struct transmit_sa *sa)
 837 {
 838         struct macsec_qca_data *drv = priv;
 839         int ret = 0;
 840         u32 channel = sa->sc->channel;
 841
 842
 843         wpa_printf(MSG_DEBUG, "%s: channel=%d, an=%d", __func__, channel,
 844                    sa->an);
 845
 846         ret += nss_macsec_secy_tx_sa_en_set(drv->secy_id, channel, sa->an,
 847                                             TRUE);
 848
 849         return ret;
 850 }
 851
 852
 853 static int macsec_qca_disable_transmit_sa(void *priv, struct transmit_sa *sa)
 854 {
 855         struct macsec_qca_data *drv = priv;
 856         int ret = 0;
 857         u32 channel = sa->sc->channel;
 858
 859         wpa_printf(MSG_DEBUG, "%s: channel=%d, an=%d", __func__, channel,
 860                    sa->an);
 861
 862         ret += nss_macsec_secy_tx_sa_en_set(drv->secy_id, channel, sa->an,
 863                                             FALSE);
 864
 865         return ret;
 866 }
 867
 868
 869 const struct wpa_driver_ops wpa_driver_macsec_qca_ops = {
 870         .name = "macsec_qca",
 871         .desc = "QCA MACsec Ethernet driver",
 872         .get_ssid = macsec_qca_get_ssid,
 873         .get_bssid = macsec_qca_get_bssid,
 874         .get_capa = macsec_qca_get_capa,
 875         .init = macsec_qca_init,
 876         .deinit = macsec_qca_deinit,
 877
 878         .macsec_init = macsec_qca_macsec_init,
 879         .macsec_deinit = macsec_qca_macsec_deinit,
 880         .enable_protect_frames = macsec_qca_enable_protect_frames,
 881         .set_replay_protect = macsec_qca_set_replay_protect,
 882         .set_current_cipher_suite = macsec_qca_set_current_cipher_suite,
 883         .enable_controlled_port = macsec_qca_enable_controlled_port,
 884         .get_receive_lowest_pn = macsec_qca_get_receive_lowest_pn,
 885         .get_transmit_next_pn = macsec_qca_get_transmit_next_pn,
 886         .set_transmit_next_pn = macsec_qca_set_transmit_next_pn,
 887         .get_available_receive_sc = macsec_qca_get_available_receive_sc,
 888         .create_receive_sc = macsec_qca_create_receive_sc,
 889         .delete_receive_sc = macsec_qca_delete_receive_sc,
 890         .create_receive_sa = macsec_qca_create_receive_sa,
 891         .enable_receive_sa = macsec_qca_enable_receive_sa,
 892         .disable_receive_sa = macsec_qca_disable_receive_sa,
 893         .get_available_transmit_sc = macsec_qca_get_available_transmit_sc,
 894         .create_transmit_sc = macsec_qca_create_transmit_sc,
 895         .delete_transmit_sc = macsec_qca_delete_transmit_sc,
 896         .create_transmit_sa = macsec_qca_create_transmit_sa,
 897         .enable_transmit_sa = macsec_qca_enable_transmit_sa,
 898         .disable_transmit_sa = macsec_qca_disable_transmit_sa,
 899 };