net/ceph/auth.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/ceph/ceph_debug.h>
   3
   4 #include <linux/module.h>
   5 #include <linux/err.h>
   6 #include <linux/slab.h>
   7
   8 #include <linux/ceph/types.h>
   9 #include <linux/ceph/decode.h>
  10 #include <linux/ceph/libceph.h>
  11 #include <linux/ceph/messenger.h>
  12 #include "auth_none.h"
  13 #include "auth_x.h"
  14
  15
  16 /*
  17  * get protocol handler
  18  */
  19 static u32 supported_protocols[] = {
  20         CEPH_AUTH_NONE,
  21         CEPH_AUTH_CEPHX
  22 };
  23
  24 static int init_protocol(struct ceph_auth_client *ac, int proto)
  25 {
  26         dout("%s proto %d\n", __func__, proto);
  27
  28         switch (proto) {
  29         case CEPH_AUTH_NONE:
  30                 return ceph_auth_none_init(ac);
  31         case CEPH_AUTH_CEPHX:
  32                 return ceph_x_init(ac);
  33         default:
  34                 pr_err("bad auth protocol %d\n", proto);
  35                 return -EINVAL;
  36         }
  37 }
  38
  39 static void set_global_id(struct ceph_auth_client *ac, u64 global_id)
  40 {
  41         dout("%s global_id %llu\n", __func__, global_id);
  42
  43         if (!global_id)
  44                 pr_err("got zero global_id\n");
  45
  46         if (ac->global_id && global_id != ac->global_id)
  47                 pr_err("global_id changed from %llu to %llu\n", ac->global_id,
  48                        global_id);
  49
  50         ac->global_id = global_id;
  51 }
  52
  53 /*
  54  * setup, teardown.
  55  */
  56 struct ceph_auth_client *ceph_auth_init(const char *name,
  57                                         const struct ceph_crypto_key *key,
  58                                         const int *con_modes)
  59 {
  60         struct ceph_auth_client *ac;
  61         int ret;
  62
  63         ret = -ENOMEM;
  64         ac = kzalloc(sizeof(*ac), GFP_NOFS);
  65         if (!ac)
  66                 goto out;
  67
  68         mutex_init(&ac->mutex);
  69         ac->negotiating = true;
  70         if (name)
  71                 ac->name = name;
  72         else
  73                 ac->name = CEPH_AUTH_NAME_DEFAULT;
  74         ac->key = key;
  75         ac->preferred_mode = con_modes[0];
  76         ac->fallback_mode = con_modes[1];
  77
  78         dout("%s name '%s' preferred_mode %d fallback_mode %d\n", __func__,
  79              ac->name, ac->preferred_mode, ac->fallback_mode);
  80         return ac;
  81
  82 out:
  83         return ERR_PTR(ret);
  84 }
  85
  86 void ceph_auth_destroy(struct ceph_auth_client *ac)
  87 {
  88         dout("auth_destroy %p\n", ac);
  89         if (ac->ops)
  90                 ac->ops->destroy(ac);
  91         kfree(ac);
  92 }
  93
  94 /*
  95  * Reset occurs when reconnecting to the monitor.
  96  */
  97 void ceph_auth_reset(struct ceph_auth_client *ac)
  98 {
  99         mutex_lock(&ac->mutex);
 100         dout("auth_reset %p\n", ac);
 101         if (ac->ops && !ac->negotiating)
 102                 ac->ops->reset(ac);
 103         ac->negotiating = true;
 104         mutex_unlock(&ac->mutex);
 105 }
 106
 107 /*
 108  * EntityName, not to be confused with entity_name_t
 109  */
 110 int ceph_auth_entity_name_encode(const char *name, void **p, void *end)
 111 {
 112         int len = strlen(name);
 113
 114         if (*p + 2*sizeof(u32) + len > end)
 115                 return -ERANGE;
 116         ceph_encode_32(p, CEPH_ENTITY_TYPE_CLIENT);
 117         ceph_encode_32(p, len);
 118         ceph_encode_copy(p, name, len);
 119         return 0;
 120 }
 121
 122 /*
 123  * Initiate protocol negotiation with monitor.  Include entity name
 124  * and list supported protocols.
 125  */
 126 int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len)
 127 {
 128         struct ceph_mon_request_header *monhdr = buf;
 129         void *p = monhdr + 1, *end = buf + len, *lenp;
 130         int i, num;
 131         int ret;
 132
 133         mutex_lock(&ac->mutex);
 134         dout("auth_build_hello\n");
 135         monhdr->have_version = 0;
 136         monhdr->session_mon = cpu_to_le16(-1);
 137         monhdr->session_mon_tid = 0;
 138
 139         ceph_encode_32(&p, CEPH_AUTH_UNKNOWN);  /* no protocol, yet */
 140
 141         lenp = p;
 142         p += sizeof(u32);
 143
 144         ceph_decode_need(&p, end, 1 + sizeof(u32), bad);
 145         ceph_encode_8(&p, 1);
 146         num = ARRAY_SIZE(supported_protocols);
 147         ceph_encode_32(&p, num);
 148         ceph_decode_need(&p, end, num * sizeof(u32), bad);
 149         for (i = 0; i < num; i++)
 150                 ceph_encode_32(&p, supported_protocols[i]);
 151
 152         ret = ceph_auth_entity_name_encode(ac->name, &p, end);
 153         if (ret < 0)
 154                 goto out;
 155         ceph_decode_need(&p, end, sizeof(u64), bad);
 156         ceph_encode_64(&p, ac->global_id);
 157
 158         ceph_encode_32(&lenp, p - lenp - sizeof(u32));
 159         ret = p - buf;
 160 out:
 161         mutex_unlock(&ac->mutex);
 162         return ret;
 163
 164 bad:
 165         ret = -ERANGE;
 166         goto out;
 167 }
 168
 169 static int build_request(struct ceph_auth_client *ac, bool add_header,
 170                          void *buf, int buf_len)
 171 {
 172         void *end = buf + buf_len;
 173         void *p;
 174         int ret;
 175
 176         p = buf;
 177         if (add_header) {
 178                 /* struct ceph_mon_request_header + protocol */
 179                 ceph_encode_64_safe(&p, end, 0, e_range);
 180                 ceph_encode_16_safe(&p, end, -1, e_range);
 181                 ceph_encode_64_safe(&p, end, 0, e_range);
 182                 ceph_encode_32_safe(&p, end, ac->protocol, e_range);
 183         }
 184
 185         ceph_encode_need(&p, end, sizeof(u32), e_range);
 186         ret = ac->ops->build_request(ac, p + sizeof(u32), end);
 187         if (ret < 0) {
 188                 pr_err("auth protocol '%s' building request failed: %d\n",
 189                        ceph_auth_proto_name(ac->protocol), ret);
 190                 return ret;
 191         }
 192         dout(" built request %d bytes\n", ret);
 193         ceph_encode_32(&p, ret);
 194         return p + ret - buf;
 195
 196 e_range:
 197         return -ERANGE;
 198 }
 199
 200 /*
 201  * Handle auth message from monitor.
 202  */
 203 int ceph_handle_auth_reply(struct ceph_auth_client *ac,
 204                            void *buf, size_t len,
 205                            void *reply_buf, size_t reply_len)
 206 {
 207         void *p = buf;
 208         void *end = buf + len;
 209         int protocol;
 210         s32 result;
 211         u64 global_id;
 212         void *payload, *payload_end;
 213         int payload_len;
 214         char *result_msg;
 215         int result_msg_len;
 216         int ret = -EINVAL;
 217
 218         mutex_lock(&ac->mutex);
 219         dout("handle_auth_reply %p %p\n", p, end);
 220         ceph_decode_need(&p, end, sizeof(u32) * 3 + sizeof(u64), bad);
 221         protocol = ceph_decode_32(&p);
 222         result = ceph_decode_32(&p);
 223         global_id = ceph_decode_64(&p);
 224         payload_len = ceph_decode_32(&p);
 225         payload = p;
 226         p += payload_len;
 227         ceph_decode_need(&p, end, sizeof(u32), bad);
 228         result_msg_len = ceph_decode_32(&p);
 229         result_msg = p;
 230         p += result_msg_len;
 231         if (p != end)
 232                 goto bad;
 233
 234         dout(" result %d '%.*s' gid %llu len %d\n", result, result_msg_len,
 235              result_msg, global_id, payload_len);
 236
 237         payload_end = payload + payload_len;
 238
 239         if (ac->negotiating) {
 240                 /* server does not support our protocols? */
 241                 if (!protocol && result < 0) {
 242                         ret = result;
 243                         goto out;
 244                 }
 245                 /* set up (new) protocol handler? */
 246                 if (ac->protocol && ac->protocol != protocol) {
 247                         ac->ops->destroy(ac);
 248                         ac->protocol = 0;
 249                         ac->ops = NULL;
 250                 }
 251                 if (ac->protocol != protocol) {
 252                         ret = init_protocol(ac, protocol);
 253                         if (ret) {
 254                                 pr_err("auth protocol '%s' init failed: %d\n",
 255                                        ceph_auth_proto_name(protocol), ret);
 256                                 goto out;
 257                         }
 258                 }
 259
 260                 ac->negotiating = false;
 261         }
 262
 263         ret = ac->ops->handle_reply(ac, result, payload, payload_end,
 264                                     NULL, NULL, NULL, NULL);
 265         if (ret == -EAGAIN) {
 266                 ret = build_request(ac, true, reply_buf, reply_len);
 267                 goto out;
 268         } else if (ret) {
 269                 pr_err("auth protocol '%s' mauth authentication failed: %d\n",
 270                        ceph_auth_proto_name(ac->protocol), result);
 271                 goto out;
 272         }
 273
 274         set_global_id(ac, global_id);
 275
 276 out:
 277         mutex_unlock(&ac->mutex);
 278         return ret;
 279
 280 bad:
 281         pr_err("failed to decode auth msg\n");
 282         ret = -EINVAL;
 283         goto out;
 284 }
 285
 286 int ceph_build_auth(struct ceph_auth_client *ac,
 287                     void *msg_buf, size_t msg_len)
 288 {
 289         int ret = 0;
 290
 291         mutex_lock(&ac->mutex);
 292         if (ac->ops->should_authenticate(ac))
 293                 ret = build_request(ac, true, msg_buf, msg_len);
 294         mutex_unlock(&ac->mutex);
 295         return ret;
 296 }
 297
 298 int ceph_auth_is_authenticated(struct ceph_auth_client *ac)
 299 {
 300         int ret = 0;
 301
 302         mutex_lock(&ac->mutex);
 303         if (ac->ops)
 304                 ret = ac->ops->is_authenticated(ac);
 305         mutex_unlock(&ac->mutex);
 306         return ret;
 307 }
 308 EXPORT_SYMBOL(ceph_auth_is_authenticated);
 309
 310 int __ceph_auth_get_authorizer(struct ceph_auth_client *ac,
 311                                struct ceph_auth_handshake *auth,
 312                                int peer_type, bool force_new,
 313                                int *proto, int *pref_mode, int *fallb_mode)
 314 {
 315         int ret;
 316
 317         mutex_lock(&ac->mutex);
 318         if (force_new && auth->authorizer) {
 319                 ceph_auth_destroy_authorizer(auth->authorizer);
 320                 auth->authorizer = NULL;
 321         }
 322         if (!auth->authorizer)
 323                 ret = ac->ops->create_authorizer(ac, peer_type, auth);
 324         else if (ac->ops->update_authorizer)
 325                 ret = ac->ops->update_authorizer(ac, peer_type, auth);
 326         else
 327                 ret = 0;
 328         if (ret)
 329                 goto out;
 330
 331         *proto = ac->protocol;
 332         if (pref_mode && fallb_mode) {
 333                 *pref_mode = ac->preferred_mode;
 334                 *fallb_mode = ac->fallback_mode;
 335         }
 336
 337 out:
 338         mutex_unlock(&ac->mutex);
 339         return ret;
 340 }
 341 EXPORT_SYMBOL(__ceph_auth_get_authorizer);
 342
 343 void ceph_auth_destroy_authorizer(struct ceph_authorizer *a)
 344 {
 345         a->destroy(a);
 346 }
 347 EXPORT_SYMBOL(ceph_auth_destroy_authorizer);
 348
 349 int ceph_auth_add_authorizer_challenge(struct ceph_auth_client *ac,
 350                                        struct ceph_authorizer *a,
 351                                        void *challenge_buf,
 352                                        int challenge_buf_len)
 353 {
 354         int ret = 0;
 355
 356         mutex_lock(&ac->mutex);
 357         if (ac->ops && ac->ops->add_authorizer_challenge)
 358                 ret = ac->ops->add_authorizer_challenge(ac, a, challenge_buf,
 359                                                         challenge_buf_len);
 360         mutex_unlock(&ac->mutex);
 361         return ret;
 362 }
 363 EXPORT_SYMBOL(ceph_auth_add_authorizer_challenge);
 364
 365 int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
 366                                       struct ceph_authorizer *a,
 367                                       void *reply, int reply_len,
 368                                       u8 *session_key, int *session_key_len,
 369                                       u8 *con_secret, int *con_secret_len)
 370 {
 371         int ret = 0;
 372
 373         mutex_lock(&ac->mutex);
 374         if (ac->ops && ac->ops->verify_authorizer_reply)
 375                 ret = ac->ops->verify_authorizer_reply(ac, a,
 376                         reply, reply_len, session_key, session_key_len,
 377                         con_secret, con_secret_len);
 378         mutex_unlock(&ac->mutex);
 379         return ret;
 380 }
 381 EXPORT_SYMBOL(ceph_auth_verify_authorizer_reply);
 382
 383 void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, int peer_type)
 384 {
 385         mutex_lock(&ac->mutex);
 386         if (ac->ops && ac->ops->invalidate_authorizer)
 387                 ac->ops->invalidate_authorizer(ac, peer_type);
 388         mutex_unlock(&ac->mutex);
 389 }
 390 EXPORT_SYMBOL(ceph_auth_invalidate_authorizer);
 391
 392 /*
 393  * msgr2 authentication
 394  */
 395
 396 static bool contains(const int *arr, int cnt, int val)
 397 {
 398         int i;
 399
 400         for (i = 0; i < cnt; i++) {
 401                 if (arr[i] == val)
 402                         return true;
 403         }
 404
 405         return false;
 406 }
 407
 408 static int encode_con_modes(void **p, void *end, int pref_mode, int fallb_mode)
 409 {
 410         WARN_ON(pref_mode == CEPH_CON_MODE_UNKNOWN);
 411         if (fallb_mode != CEPH_CON_MODE_UNKNOWN) {
 412                 ceph_encode_32_safe(p, end, 2, e_range);
 413                 ceph_encode_32_safe(p, end, pref_mode, e_range);
 414                 ceph_encode_32_safe(p, end, fallb_mode, e_range);
 415         } else {
 416                 ceph_encode_32_safe(p, end, 1, e_range);
 417                 ceph_encode_32_safe(p, end, pref_mode, e_range);
 418         }
 419
 420         return 0;
 421
 422 e_range:
 423         return -ERANGE;
 424 }
 425
 426 /*
 427  * Similar to ceph_auth_build_hello().
 428  */
 429 int ceph_auth_get_request(struct ceph_auth_client *ac, void *buf, int buf_len)
 430 {
 431         int proto = ac->key ? CEPH_AUTH_CEPHX : CEPH_AUTH_NONE;
 432         void *end = buf + buf_len;
 433         void *lenp;
 434         void *p;
 435         int ret;
 436
 437         mutex_lock(&ac->mutex);
 438         if (ac->protocol == CEPH_AUTH_UNKNOWN) {
 439                 ret = init_protocol(ac, proto);
 440                 if (ret) {
 441                         pr_err("auth protocol '%s' init failed: %d\n",
 442                                ceph_auth_proto_name(proto), ret);
 443                         goto out;
 444                 }
 445         } else {
 446                 WARN_ON(ac->protocol != proto);
 447                 ac->ops->reset(ac);
 448         }
 449
 450         p = buf;
 451         ceph_encode_32_safe(&p, end, ac->protocol, e_range);
 452         ret = encode_con_modes(&p, end, ac->preferred_mode, ac->fallback_mode);
 453         if (ret)
 454                 goto out;
 455
 456         lenp = p;
 457         p += 4;  /* space for len */
 458
 459         ceph_encode_8_safe(&p, end, CEPH_AUTH_MODE_MON, e_range);
 460         ret = ceph_auth_entity_name_encode(ac->name, &p, end);
 461         if (ret)
 462                 goto out;
 463
 464         ceph_encode_64_safe(&p, end, ac->global_id, e_range);
 465         ceph_encode_32(&lenp, p - lenp - 4);
 466         ret = p - buf;
 467
 468 out:
 469         mutex_unlock(&ac->mutex);
 470         return ret;
 471
 472 e_range:
 473         ret = -ERANGE;
 474         goto out;
 475 }
 476
 477 int ceph_auth_handle_reply_more(struct ceph_auth_client *ac, void *reply,
 478                                 int reply_len, void *buf, int buf_len)
 479 {
 480         int ret;
 481
 482         mutex_lock(&ac->mutex);
 483         ret = ac->ops->handle_reply(ac, 0, reply, reply + reply_len,
 484                                     NULL, NULL, NULL, NULL);
 485         if (ret == -EAGAIN)
 486                 ret = build_request(ac, false, buf, buf_len);
 487         else
 488                 WARN_ON(ret >= 0);
 489         mutex_unlock(&ac->mutex);
 490         return ret;
 491 }
 492
 493 int ceph_auth_handle_reply_done(struct ceph_auth_client *ac,
 494                                 u64 global_id, void *reply, int reply_len,
 495                                 u8 *session_key, int *session_key_len,
 496                                 u8 *con_secret, int *con_secret_len)
 497 {
 498         int ret;
 499
 500         mutex_lock(&ac->mutex);
 501         ret = ac->ops->handle_reply(ac, 0, reply, reply + reply_len,
 502                                     session_key, session_key_len,
 503                                     con_secret, con_secret_len);
 504         if (!ret)
 505                 set_global_id(ac, global_id);
 506         mutex_unlock(&ac->mutex);
 507         return ret;
 508 }
 509
 510 bool ceph_auth_handle_bad_method(struct ceph_auth_client *ac,
 511                                  int used_proto, int result,
 512                                  const int *allowed_protos, int proto_cnt,
 513                                  const int *allowed_modes, int mode_cnt)
 514 {
 515         mutex_lock(&ac->mutex);
 516         WARN_ON(used_proto != ac->protocol);
 517
 518         if (result == -EOPNOTSUPP) {
 519                 if (!contains(allowed_protos, proto_cnt, ac->protocol)) {
 520                         pr_err("auth protocol '%s' not allowed\n",
 521                                ceph_auth_proto_name(ac->protocol));
 522                         goto not_allowed;
 523                 }
 524                 if (!contains(allowed_modes, mode_cnt, ac->preferred_mode) &&
 525                     (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN ||
 526                      !contains(allowed_modes, mode_cnt, ac->fallback_mode))) {
 527                         pr_err("preferred mode '%s' not allowed\n",
 528                                ceph_con_mode_name(ac->preferred_mode));
 529                         if (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN)
 530                                 pr_err("no fallback mode\n");
 531                         else
 532                                 pr_err("fallback mode '%s' not allowed\n",
 533                                        ceph_con_mode_name(ac->fallback_mode));
 534                         goto not_allowed;
 535                 }
 536         }
 537
 538         WARN_ON(result == -EOPNOTSUPP || result >= 0);
 539         pr_err("auth protocol '%s' msgr authentication failed: %d\n",
 540                ceph_auth_proto_name(ac->protocol), result);
 541
 542         mutex_unlock(&ac->mutex);
 543         return true;
 544
 545 not_allowed:
 546         mutex_unlock(&ac->mutex);
 547         return false;
 548 }
 549
 550 int ceph_auth_get_authorizer(struct ceph_auth_client *ac,
 551                              struct ceph_auth_handshake *auth,
 552                              int peer_type, void *buf, int *buf_len)
 553 {
 554         void *end = buf + *buf_len;
 555         int pref_mode, fallb_mode;
 556         int proto;
 557         void *p;
 558         int ret;
 559
 560         ret = __ceph_auth_get_authorizer(ac, auth, peer_type, true, &proto,
 561                                          &pref_mode, &fallb_mode);
 562         if (ret)
 563                 return ret;
 564
 565         p = buf;
 566         ceph_encode_32_safe(&p, end, proto, e_range);
 567         ret = encode_con_modes(&p, end, pref_mode, fallb_mode);
 568         if (ret)
 569                 return ret;
 570
 571         ceph_encode_32_safe(&p, end, auth->authorizer_buf_len, e_range);
 572         *buf_len = p - buf;
 573         return 0;
 574
 575 e_range:
 576         return -ERANGE;
 577 }
 578 EXPORT_SYMBOL(ceph_auth_get_authorizer);
 579
 580 int ceph_auth_handle_svc_reply_more(struct ceph_auth_client *ac,
 581                                     struct ceph_auth_handshake *auth,
 582                                     void *reply, int reply_len,
 583                                     void *buf, int *buf_len)
 584 {
 585         void *end = buf + *buf_len;
 586         void *p;
 587         int ret;
 588
 589         ret = ceph_auth_add_authorizer_challenge(ac, auth->authorizer,
 590                                                  reply, reply_len);
 591         if (ret)
 592                 return ret;
 593
 594         p = buf;
 595         ceph_encode_32_safe(&p, end, auth->authorizer_buf_len, e_range);
 596         *buf_len = p - buf;
 597         return 0;
 598
 599 e_range:
 600         return -ERANGE;
 601 }
 602 EXPORT_SYMBOL(ceph_auth_handle_svc_reply_more);
 603
 604 int ceph_auth_handle_svc_reply_done(struct ceph_auth_client *ac,
 605                                     struct ceph_auth_handshake *auth,
 606                                     void *reply, int reply_len,
 607                                     u8 *session_key, int *session_key_len,
 608                                     u8 *con_secret, int *con_secret_len)
 609 {
 610         return ceph_auth_verify_authorizer_reply(ac, auth->authorizer,
 611                 reply, reply_len, session_key, session_key_len,
 612                 con_secret, con_secret_len);
 613 }
 614 EXPORT_SYMBOL(ceph_auth_handle_svc_reply_done);
 615
 616 bool ceph_auth_handle_bad_authorizer(struct ceph_auth_client *ac,
 617                                      int peer_type, int used_proto, int result,
 618                                      const int *allowed_protos, int proto_cnt,
 619                                      const int *allowed_modes, int mode_cnt)
 620 {
 621         mutex_lock(&ac->mutex);
 622         WARN_ON(used_proto != ac->protocol);
 623
 624         if (result == -EOPNOTSUPP) {
 625                 if (!contains(allowed_protos, proto_cnt, ac->protocol)) {
 626                         pr_err("auth protocol '%s' not allowed by %s\n",
 627                                ceph_auth_proto_name(ac->protocol),
 628                                ceph_entity_type_name(peer_type));
 629                         goto not_allowed;
 630                 }
 631                 if (!contains(allowed_modes, mode_cnt, ac->preferred_mode) &&
 632                     (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN ||
 633                      !contains(allowed_modes, mode_cnt, ac->fallback_mode))) {
 634                         pr_err("preferred mode '%s' not allowed by %s\n",
 635                                ceph_con_mode_name(ac->preferred_mode),
 636                                ceph_entity_type_name(peer_type));
 637                         if (ac->fallback_mode == CEPH_CON_MODE_UNKNOWN)
 638                                 pr_err("no fallback mode\n");
 639                         else
 640                                 pr_err("fallback mode '%s' not allowed by %s\n",
 641                                        ceph_con_mode_name(ac->fallback_mode),
 642                                        ceph_entity_type_name(peer_type));
 643                         goto not_allowed;
 644                 }
 645         }
 646
 647         WARN_ON(result == -EOPNOTSUPP || result >= 0);
 648         pr_err("auth protocol '%s' authorization to %s failed: %d\n",
 649                ceph_auth_proto_name(ac->protocol),
 650                ceph_entity_type_name(peer_type), result);
 651
 652         if (ac->ops->invalidate_authorizer)
 653                 ac->ops->invalidate_authorizer(ac, peer_type);
 654
 655         mutex_unlock(&ac->mutex);
 656         return true;
 657
 658 not_allowed:
 659         mutex_unlock(&ac->mutex);
 660         return false;
 661 }
 662 EXPORT_SYMBOL(ceph_auth_handle_bad_authorizer);