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