LCOV - code coverage report
Current view: top level - lib/nvmf - auth.c (source / functions) Hit Total Coverage
Test: ut_cov_unit.info Lines: 0 498 0.0 %
Date: 2024-07-11 04:57:23 Functions: 0 29 0.0 %

          Line data    Source code
       1             : /* SPDX-License-Identifier: BSD-3-Clause
       2             :  * Copyright (c) 2024 Intel Corporation
       3             :  */
       4             : 
       5             : #include "spdk/nvme.h"
       6             : #include "spdk/json.h"
       7             : #include "spdk/log.h"
       8             : #include "spdk/stdinc.h"
       9             : #include "spdk/string.h"
      10             : #include "spdk/thread.h"
      11             : #include "spdk/util.h"
      12             : #include "spdk_internal/nvme.h"
      13             : 
      14             : #include <openssl/rand.h>
      15             : 
      16             : #include "nvmf_internal.h"
      17             : 
      18             : #define NVMF_AUTH_DEFAULT_KATO_US (120ull * 1000 * 1000)
      19             : #define NVMF_AUTH_DIGEST_MAX_SIZE 64
      20             : #define NVMF_AUTH_DH_KEY_MAX_SIZE 1024
      21             : 
      22             : #define AUTH_ERRLOG(q, fmt, ...) \
      23             :         SPDK_ERRLOG("[%s:%s:%u] " fmt, (q)->ctrlr->subsys->subnqn, (q)->ctrlr->hostnqn, \
      24             :                     (q)->qid, ## __VA_ARGS__)
      25             : #define AUTH_DEBUGLOG(q, fmt, ...) \
      26             :         SPDK_DEBUGLOG(nvmf_auth, "[%s:%s:%u] " fmt, \
      27             :                       (q)->ctrlr->subsys->subnqn, (q)->ctrlr->hostnqn, (q)->qid, ## __VA_ARGS__)
      28             : #define AUTH_LOGDUMP(msg, buf, len) \
      29             :         SPDK_LOGDUMP(nvmf_auth, msg, buf, len)
      30             : 
      31             : enum nvmf_qpair_auth_state {
      32             :         NVMF_QPAIR_AUTH_NEGOTIATE,
      33             :         NVMF_QPAIR_AUTH_CHALLENGE,
      34             :         NVMF_QPAIR_AUTH_REPLY,
      35             :         NVMF_QPAIR_AUTH_SUCCESS1,
      36             :         NVMF_QPAIR_AUTH_SUCCESS2,
      37             :         NVMF_QPAIR_AUTH_FAILURE1,
      38             :         NVMF_QPAIR_AUTH_COMPLETED,
      39             :         NVMF_QPAIR_AUTH_ERROR,
      40             : };
      41             : 
      42             : struct spdk_nvmf_qpair_auth {
      43             :         enum nvmf_qpair_auth_state      state;
      44             :         struct spdk_poller              *poller;
      45             :         int                             fail_reason;
      46             :         uint16_t                        tid;
      47             :         int                             digest;
      48             :         int                             dhgroup;
      49             :         uint8_t                         cval[NVMF_AUTH_DIGEST_MAX_SIZE];
      50             :         uint32_t                        seqnum;
      51             :         struct spdk_nvme_dhchap_dhkey   *dhkey;
      52             :         bool                            cvalid;
      53             : };
      54             : 
      55             : struct nvmf_auth_common_header {
      56             :         uint8_t         auth_type;
      57             :         uint8_t         auth_id;
      58             :         uint8_t         reserved0[2];
      59             :         uint16_t        t_id;
      60             : };
      61             : 
      62             : static void
      63           0 : nvmf_auth_request_complete(struct spdk_nvmf_request *req, int sct, int sc, int dnr)
      64             : {
      65           0 :         struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
      66             : 
      67           0 :         response->status.sct = sct;
      68           0 :         response->status.sc = sc;
      69           0 :         response->status.dnr = dnr;
      70             : 
      71           0 :         spdk_nvmf_request_complete(req);
      72           0 : }
      73             : 
      74             : static const char *
      75           0 : nvmf_auth_get_state_name(enum nvmf_qpair_auth_state state)
      76             : {
      77             :         static const char *state_names[] = {
      78             :                 [NVMF_QPAIR_AUTH_NEGOTIATE] = "negotiate",
      79             :                 [NVMF_QPAIR_AUTH_CHALLENGE] = "challenge",
      80             :                 [NVMF_QPAIR_AUTH_REPLY] = "reply",
      81             :                 [NVMF_QPAIR_AUTH_SUCCESS1] = "success1",
      82             :                 [NVMF_QPAIR_AUTH_SUCCESS2] = "success2",
      83             :                 [NVMF_QPAIR_AUTH_FAILURE1] = "failure1",
      84             :                 [NVMF_QPAIR_AUTH_COMPLETED] = "completed",
      85             :                 [NVMF_QPAIR_AUTH_ERROR] = "error",
      86             :         };
      87             : 
      88           0 :         return state_names[state];
      89             : }
      90             : 
      91             : static void
      92           0 : nvmf_auth_set_state(struct spdk_nvmf_qpair *qpair, enum nvmf_qpair_auth_state state)
      93             : {
      94           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
      95             : 
      96           0 :         if (auth->state == state) {
      97           0 :                 return;
      98             :         }
      99             : 
     100           0 :         AUTH_DEBUGLOG(qpair, "auth state: %s\n", nvmf_auth_get_state_name(state));
     101           0 :         auth->state = state;
     102             : }
     103             : 
     104             : static void
     105           0 : nvmf_auth_disconnect_qpair(struct spdk_nvmf_qpair *qpair)
     106             : {
     107           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_ERROR);
     108           0 :         spdk_nvmf_qpair_disconnect(qpair);
     109           0 : }
     110             : 
     111             : static void
     112           0 : nvmf_auth_request_fail1(struct spdk_nvmf_request *req, int reason)
     113             : {
     114           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     115           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     116             : 
     117           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_FAILURE1);
     118           0 :         auth->fail_reason = reason;
     119             : 
     120             :         /* The command itself is completed successfully, but a subsequent AUTHENTICATION_RECV
     121             :          * command will be completed with an AUTH_failure1 message
     122             :          */
     123           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     124           0 : }
     125             : 
     126             : static bool
     127           0 : nvmf_auth_digest_allowed(struct spdk_nvmf_qpair *qpair, uint8_t digest)
     128             : {
     129           0 :         struct spdk_nvmf_tgt *tgt = qpair->group->tgt;
     130             : 
     131           0 :         return tgt->dhchap_digests & SPDK_BIT(digest);
     132             : }
     133             : 
     134             : static bool
     135           0 : nvmf_auth_dhgroup_allowed(struct spdk_nvmf_qpair *qpair, uint8_t dhgroup)
     136             : {
     137           0 :         struct spdk_nvmf_tgt *tgt = qpair->group->tgt;
     138             : 
     139           0 :         return tgt->dhchap_dhgroups & SPDK_BIT(dhgroup);
     140             : }
     141             : 
     142             : static int
     143           0 : nvmf_auth_timeout_poller(void *ctx)
     144             : {
     145           0 :         struct spdk_nvmf_qpair *qpair = ctx;
     146           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     147             : 
     148           0 :         AUTH_ERRLOG(qpair, "authentication timed out\n");
     149             : 
     150           0 :         spdk_poller_unregister(&auth->poller);
     151           0 :         nvmf_auth_disconnect_qpair(qpair);
     152             : 
     153           0 :         return SPDK_POLLER_BUSY;
     154             : }
     155             : 
     156             : static int
     157           0 : nvmf_auth_rearm_poller(struct spdk_nvmf_qpair *qpair)
     158             : {
     159           0 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     160           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     161             :         uint64_t timeout;
     162             : 
     163           0 :         timeout = ctrlr->feat.keep_alive_timer.bits.kato > 0 ?
     164           0 :                   ctrlr->feat.keep_alive_timer.bits.kato * 1000 :
     165             :                   NVMF_AUTH_DEFAULT_KATO_US;
     166             : 
     167           0 :         spdk_poller_unregister(&auth->poller);
     168           0 :         auth->poller = SPDK_POLLER_REGISTER(nvmf_auth_timeout_poller, qpair, timeout);
     169           0 :         if (auth->poller == NULL) {
     170           0 :                 return -ENOMEM;
     171             :         }
     172             : 
     173           0 :         return 0;
     174             : }
     175             : 
     176             : static void
     177           0 : nvmf_auth_qpair_cleanup(struct spdk_nvmf_qpair_auth *auth)
     178             : {
     179           0 :         spdk_poller_unregister(&auth->poller);
     180           0 :         spdk_nvme_dhchap_dhkey_free(&auth->dhkey);
     181           0 : }
     182             : 
     183             : static int
     184           0 : nvmf_auth_check_command(struct spdk_nvmf_request *req, uint8_t secp,
     185             :                         uint8_t spsp0, uint8_t spsp1, uint32_t len)
     186             : {
     187           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     188             : 
     189           0 :         if (secp != SPDK_NVMF_AUTH_SECP_NVME) {
     190           0 :                 AUTH_ERRLOG(qpair, "invalid secp=%u\n", secp);
     191           0 :                 return -EINVAL;
     192             :         }
     193           0 :         if (spsp0 != 1 || spsp1 != 1) {
     194           0 :                 AUTH_ERRLOG(qpair, "invalid spsp0=%u, spsp1=%u\n", spsp0, spsp1);
     195           0 :                 return -EINVAL;
     196             :         }
     197           0 :         if (len != req->length) {
     198           0 :                 AUTH_ERRLOG(qpair, "invalid length: %"PRIu32" != %"PRIu32"\n", len, req->length);
     199           0 :                 return -EINVAL;
     200             :         }
     201             : 
     202           0 :         return 0;
     203             : }
     204             : 
     205             : static void *
     206           0 : nvmf_auth_get_message(struct spdk_nvmf_request *req, size_t size)
     207             : {
     208           0 :         if (req->length > 0 && req->iovcnt == 1 && req->iov[0].iov_len >= size) {
     209           0 :                 return req->iov[0].iov_base;
     210             :         }
     211             : 
     212           0 :         return NULL;
     213             : }
     214             : 
     215             : static void
     216           0 : nvmf_auth_negotiate_exec(struct spdk_nvmf_request *req, struct spdk_nvmf_auth_negotiate *msg)
     217             : {
     218           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     219           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     220           0 :         struct spdk_nvmf_auth_descriptor *desc = NULL;
     221             :         /* These arrays are sorted from the strongest hash/dhgroup to the weakest, so the strongest
     222             :          * hash/dhgroup pair supported by the host is always selected
     223             :          */
     224           0 :         enum spdk_nvmf_dhchap_hash digests[] = {
     225             :                 SPDK_NVMF_DHCHAP_HASH_SHA512,
     226             :                 SPDK_NVMF_DHCHAP_HASH_SHA384,
     227             :                 SPDK_NVMF_DHCHAP_HASH_SHA256
     228             :         };
     229           0 :         enum spdk_nvmf_dhchap_dhgroup dhgroups[] = {
     230             :                 SPDK_NVMF_DHCHAP_DHGROUP_8192,
     231             :                 SPDK_NVMF_DHCHAP_DHGROUP_6144,
     232             :                 SPDK_NVMF_DHCHAP_DHGROUP_4096,
     233             :                 SPDK_NVMF_DHCHAP_DHGROUP_3072,
     234             :                 SPDK_NVMF_DHCHAP_DHGROUP_2048,
     235             :                 SPDK_NVMF_DHCHAP_DHGROUP_NULL,
     236             :         };
     237           0 :         int digest = -1, dhgroup = -1;
     238             :         size_t i, j;
     239             : 
     240           0 :         if (auth->state != NVMF_QPAIR_AUTH_NEGOTIATE) {
     241           0 :                 AUTH_ERRLOG(qpair, "invalid state: %s\n", nvmf_auth_get_state_name(auth->state));
     242           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     243           0 :                 return;
     244             :         }
     245             : 
     246           0 :         auth->tid = msg->t_id;
     247           0 :         if (req->length < sizeof(*msg) || req->length != sizeof(*msg) + msg->napd * sizeof(*desc)) {
     248           0 :                 AUTH_ERRLOG(qpair, "invalid message length: %"PRIu32"\n", req->length);
     249           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     250           0 :                 return;
     251             :         }
     252             : 
     253           0 :         if (msg->sc_c != SPDK_NVMF_AUTH_SCC_DISABLED) {
     254           0 :                 AUTH_ERRLOG(qpair, "scc mismatch\n");
     255           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_SCC_MISMATCH);
     256           0 :                 return;
     257             :         }
     258             : 
     259           0 :         for (i = 0; i < msg->napd; ++i) {
     260           0 :                 if (msg->descriptors[i].auth_id == SPDK_NVMF_AUTH_TYPE_DHCHAP) {
     261           0 :                         desc = &msg->descriptors[i];
     262           0 :                         break;
     263             :                 }
     264             :         }
     265           0 :         if (desc == NULL) {
     266           0 :                 AUTH_ERRLOG(qpair, "no usable protocol found\n");
     267           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_PROTOCOL_UNUSABLE);
     268           0 :                 return;
     269             :         }
     270           0 :         if (desc->halen > SPDK_COUNTOF(desc->hash_id_list) ||
     271           0 :             desc->dhlen > SPDK_COUNTOF(desc->dhg_id_list)) {
     272           0 :                 AUTH_ERRLOG(qpair, "invalid halen=%u, dhlen=%u\n", desc->halen, desc->dhlen);
     273           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     274           0 :                 return;
     275             :         }
     276             : 
     277           0 :         for (i = 0; i < SPDK_COUNTOF(digests); ++i) {
     278           0 :                 if (!nvmf_auth_digest_allowed(qpair, digests[i])) {
     279           0 :                         continue;
     280             :                 }
     281           0 :                 for (j = 0; j < desc->halen; ++j) {
     282           0 :                         if (digests[i] == desc->hash_id_list[j]) {
     283           0 :                                 AUTH_DEBUGLOG(qpair, "selected digest: %s\n",
     284             :                                               spdk_nvme_dhchap_get_digest_name(digests[i]));
     285           0 :                                 digest = digests[i];
     286           0 :                                 break;
     287             :                         }
     288             :                 }
     289           0 :                 if (digest >= 0) {
     290           0 :                         break;
     291             :                 }
     292             :         }
     293           0 :         if (digest < 0) {
     294           0 :                 AUTH_ERRLOG(qpair, "no usable digests found\n");
     295           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_HASH_UNUSABLE);
     296           0 :                 return;
     297             :         }
     298             : 
     299           0 :         for (i = 0; i < SPDK_COUNTOF(dhgroups); ++i) {
     300           0 :                 if (!nvmf_auth_dhgroup_allowed(qpair, dhgroups[i])) {
     301           0 :                         continue;
     302             :                 }
     303           0 :                 for (j = 0; j < desc->dhlen; ++j) {
     304           0 :                         if (dhgroups[i] == desc->dhg_id_list[j]) {
     305           0 :                                 AUTH_DEBUGLOG(qpair, "selected dhgroup: %s\n",
     306             :                                               spdk_nvme_dhchap_get_dhgroup_name(dhgroups[i]));
     307           0 :                                 dhgroup = dhgroups[i];
     308           0 :                                 break;
     309             :                         }
     310             :                 }
     311           0 :                 if (dhgroup >= 0) {
     312           0 :                         break;
     313             :                 }
     314             :         }
     315           0 :         if (dhgroup < 0) {
     316           0 :                 AUTH_ERRLOG(qpair, "no usable dhgroups found\n");
     317           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_DHGROUP_UNUSABLE);
     318           0 :                 return;
     319             :         }
     320             : 
     321           0 :         if (nvmf_auth_rearm_poller(qpair)) {
     322           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     323             :                                            SPDK_NVME_SC_INTERNAL_DEVICE_ERROR, 1);
     324           0 :                 nvmf_auth_disconnect_qpair(qpair);
     325           0 :                 return;
     326             :         }
     327             : 
     328           0 :         auth->digest = digest;
     329           0 :         auth->dhgroup = dhgroup;
     330           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_CHALLENGE);
     331           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     332             : }
     333             : 
     334             : static void
     335           0 : nvmf_auth_reply_exec(struct spdk_nvmf_request *req, struct spdk_nvmf_dhchap_reply *msg)
     336             : {
     337           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     338           0 :         struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
     339           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     340           0 :         uint8_t response[NVMF_AUTH_DIGEST_MAX_SIZE];
     341           0 :         uint8_t dhsec[NVMF_AUTH_DH_KEY_MAX_SIZE];
     342           0 :         struct spdk_key *key = NULL, *ckey = NULL;
     343           0 :         size_t dhseclen = 0;
     344             :         uint8_t hl;
     345             :         int rc;
     346             : 
     347           0 :         if (auth->state != NVMF_QPAIR_AUTH_REPLY) {
     348           0 :                 AUTH_ERRLOG(qpair, "invalid state=%s\n", nvmf_auth_get_state_name(auth->state));
     349           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     350           0 :                 goto out;
     351             :         }
     352           0 :         if (req->length < sizeof(*msg)) {
     353           0 :                 AUTH_ERRLOG(qpair, "invalid message length=%"PRIu32"\n", req->length);
     354           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     355           0 :                 goto out;
     356             :         }
     357             : 
     358           0 :         hl = spdk_nvme_dhchap_get_digest_length(auth->digest);
     359           0 :         if (hl == 0 || msg->hl != hl) {
     360           0 :                 AUTH_ERRLOG(qpair, "hash length mismatch: %u != %u\n", msg->hl, hl);
     361           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     362           0 :                 goto out;
     363             :         }
     364           0 :         if (req->length != sizeof(*msg) + 2 * hl + msg->dhvlen) {
     365           0 :                 AUTH_ERRLOG(qpair, "invalid message length: %"PRIu32" != %zu\n",
     366             :                             req->length, sizeof(*msg) + 2 * hl);
     367           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     368           0 :                 goto out;
     369             :         }
     370           0 :         if (msg->t_id != auth->tid) {
     371           0 :                 AUTH_ERRLOG(qpair, "transaction id mismatch: %u != %u\n", msg->t_id, auth->tid);
     372           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     373           0 :                 goto out;
     374             :         }
     375           0 :         if (msg->cvalid != 0 && msg->cvalid != 1) {
     376           0 :                 AUTH_ERRLOG(qpair, "unexpected cvalid=%d\n", msg->cvalid);
     377           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     378           0 :                 goto out;
     379             :         }
     380           0 :         if (msg->cvalid && msg->seqnum == 0) {
     381           0 :                 AUTH_ERRLOG(qpair, "unexpected seqnum=0 with cvalid=1\n");
     382           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     383           0 :                 goto out;
     384             :         }
     385             : 
     386           0 :         key = nvmf_subsystem_get_dhchap_key(ctrlr->subsys, ctrlr->hostnqn, NVMF_AUTH_KEY_HOST);
     387           0 :         if (key == NULL) {
     388           0 :                 AUTH_ERRLOG(qpair, "couldn't get DH-HMAC-CHAP key\n");
     389           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     390           0 :                 goto out;
     391             :         }
     392             : 
     393           0 :         if (auth->dhgroup != SPDK_NVMF_DHCHAP_DHGROUP_NULL) {
     394           0 :                 AUTH_LOGDUMP("host pubkey:", &msg->rval[2 * hl], msg->dhvlen);
     395           0 :                 dhseclen = sizeof(dhsec);
     396           0 :                 rc = spdk_nvme_dhchap_dhkey_derive_secret(auth->dhkey, &msg->rval[2 * hl],
     397           0 :                                 msg->dhvlen, dhsec, &dhseclen);
     398           0 :                 if (rc != 0) {
     399           0 :                         AUTH_ERRLOG(qpair, "couldn't derive DH secret\n");
     400           0 :                         nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     401           0 :                         goto out;
     402             :                 }
     403             : 
     404           0 :                 AUTH_LOGDUMP("dh secret:", dhsec, dhseclen);
     405             :         }
     406             : 
     407           0 :         assert(hl <= sizeof(response) && hl <= sizeof(auth->cval));
     408           0 :         rc = spdk_nvme_dhchap_calculate(key, (enum spdk_nvmf_dhchap_hash)auth->digest,
     409           0 :                                         "HostHost", auth->seqnum, auth->tid, 0,
     410           0 :                                         ctrlr->hostnqn, ctrlr->subsys->subnqn,
     411           0 :                                         dhseclen > 0 ? dhsec : NULL, dhseclen,
     412           0 :                                         auth->cval, response);
     413           0 :         if (rc != 0) {
     414           0 :                 AUTH_ERRLOG(qpair, "failed to calculate challenge response: %s\n",
     415             :                             spdk_strerror(-rc));
     416           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     417           0 :                 goto out;
     418             :         }
     419             : 
     420           0 :         if (memcmp(msg->rval, response, hl) != 0) {
     421           0 :                 AUTH_ERRLOG(qpair, "challenge response mismatch\n");
     422           0 :                 AUTH_LOGDUMP("response:", msg->rval, hl);
     423           0 :                 AUTH_LOGDUMP("expected:", response, hl);
     424           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     425           0 :                 goto out;
     426             :         }
     427             : 
     428           0 :         if (msg->cvalid) {
     429           0 :                 ckey = nvmf_subsystem_get_dhchap_key(ctrlr->subsys, ctrlr->hostnqn,
     430             :                                                      NVMF_AUTH_KEY_CTRLR);
     431           0 :                 if (ckey == NULL) {
     432           0 :                         AUTH_ERRLOG(qpair, "missing DH-HMAC-CHAP ctrlr key\n");
     433           0 :                         nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     434           0 :                         goto out;
     435             :                 }
     436           0 :                 rc = spdk_nvme_dhchap_calculate(ckey, (enum spdk_nvmf_dhchap_hash)auth->digest,
     437           0 :                                                 "Controller", msg->seqnum, auth->tid, 0,
     438           0 :                                                 ctrlr->subsys->subnqn, ctrlr->hostnqn,
     439           0 :                                                 dhseclen > 0 ? dhsec : NULL, dhseclen,
     440           0 :                                                 &msg->rval[hl], auth->cval);
     441           0 :                 if (rc != 0) {
     442           0 :                         AUTH_ERRLOG(qpair, "failed to calculate ctrlr challenge response: %s\n",
     443             :                                     spdk_strerror(-rc));
     444           0 :                         nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_FAILED);
     445           0 :                         goto out;
     446             :                 }
     447           0 :                 auth->cvalid = true;
     448             :         }
     449             : 
     450           0 :         if (nvmf_auth_rearm_poller(qpair)) {
     451           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     452             :                                            SPDK_NVME_SC_INTERNAL_DEVICE_ERROR, 1);
     453           0 :                 nvmf_auth_disconnect_qpair(qpair);
     454           0 :                 goto out;
     455             :         }
     456             : 
     457           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_SUCCESS1);
     458           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     459           0 : out:
     460           0 :         spdk_keyring_put_key(ckey);
     461           0 :         spdk_keyring_put_key(key);
     462           0 : }
     463             : 
     464             : static void
     465           0 : nvmf_auth_success2_exec(struct spdk_nvmf_request *req, struct spdk_nvmf_dhchap_success2 *msg)
     466             : {
     467           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     468           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     469             : 
     470           0 :         if (auth->state != NVMF_QPAIR_AUTH_SUCCESS2) {
     471           0 :                 AUTH_ERRLOG(qpair, "invalid state=%s\n", nvmf_auth_get_state_name(auth->state));
     472           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     473           0 :                 return;
     474             :         }
     475           0 :         if (req->length != sizeof(*msg)) {
     476           0 :                 AUTH_ERRLOG(qpair, "invalid message length=%"PRIu32"\n", req->length);
     477           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     478           0 :                 return;
     479             :         }
     480           0 :         if (msg->t_id != auth->tid) {
     481           0 :                 AUTH_ERRLOG(qpair, "transaction id mismatch: %u != %u\n", msg->t_id, auth->tid);
     482           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     483           0 :                 return;
     484             :         }
     485             : 
     486           0 :         AUTH_DEBUGLOG(qpair, "controller authentication successful\n");
     487           0 :         nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_ENABLED);
     488           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_COMPLETED);
     489           0 :         nvmf_auth_qpair_cleanup(auth);
     490           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     491             : }
     492             : 
     493             : static void
     494           0 : nvmf_auth_failure2_exec(struct spdk_nvmf_request *req, struct spdk_nvmf_auth_failure *msg)
     495             : {
     496           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     497           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     498             : 
     499             :         /* AUTH_failure2 is only expected when we're waiting for the success2 message */
     500           0 :         if (auth->state != NVMF_QPAIR_AUTH_SUCCESS2) {
     501           0 :                 AUTH_ERRLOG(qpair, "invalid state=%s\n", nvmf_auth_get_state_name(auth->state));
     502           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     503           0 :                 return;
     504             :         }
     505           0 :         if (req->length != sizeof(*msg)) {
     506           0 :                 AUTH_ERRLOG(qpair, "invalid message length=%"PRIu32"\n", req->length);
     507           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     508           0 :                 return;
     509             :         }
     510           0 :         if (msg->t_id != auth->tid) {
     511           0 :                 AUTH_ERRLOG(qpair, "transaction id mismatch: %u != %u\n", msg->t_id, auth->tid);
     512           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     513           0 :                 return;
     514             :         }
     515             : 
     516           0 :         AUTH_ERRLOG(qpair, "ctrlr authentication failed: rc=%d, rce=%d\n", msg->rc, msg->rce);
     517           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_ERROR);
     518           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     519             : }
     520             : 
     521             : static void
     522           0 : nvmf_auth_send_exec(struct spdk_nvmf_request *req)
     523             : {
     524           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     525           0 :         struct spdk_nvmf_fabric_auth_send_cmd *cmd = &req->cmd->auth_send_cmd;
     526             :         struct nvmf_auth_common_header *header;
     527             :         int rc;
     528             : 
     529           0 :         rc = nvmf_auth_check_command(req, cmd->secp, cmd->spsp0, cmd->spsp1, cmd->tl);
     530           0 :         if (rc != 0) {
     531           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     532             :                                            SPDK_NVME_SC_INVALID_FIELD, 1);
     533           0 :                 return;
     534             :         }
     535             : 
     536           0 :         header = nvmf_auth_get_message(req, sizeof(*header));
     537           0 :         if (header == NULL) {
     538           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PAYLOAD);
     539           0 :                 return;
     540             :         }
     541             : 
     542           0 :         switch (header->auth_type) {
     543           0 :         case SPDK_NVMF_AUTH_TYPE_COMMON_MESSAGE:
     544           0 :                 switch (header->auth_id) {
     545           0 :                 case SPDK_NVMF_AUTH_ID_NEGOTIATE:
     546           0 :                         nvmf_auth_negotiate_exec(req, (void *)header);
     547           0 :                         break;
     548           0 :                 case SPDK_NVMF_AUTH_ID_FAILURE2:
     549           0 :                         nvmf_auth_failure2_exec(req, (void *)header);
     550           0 :                         break;
     551           0 :                 default:
     552           0 :                         AUTH_ERRLOG(qpair, "unexpected auth_id=%u\n", header->auth_id);
     553           0 :                         nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     554           0 :                         break;
     555             :                 }
     556           0 :                 break;
     557           0 :         case SPDK_NVMF_AUTH_TYPE_DHCHAP:
     558           0 :                 switch (header->auth_id) {
     559           0 :                 case SPDK_NVMF_AUTH_ID_DHCHAP_REPLY:
     560           0 :                         nvmf_auth_reply_exec(req, (void *)header);
     561           0 :                         break;
     562           0 :                 case SPDK_NVMF_AUTH_ID_DHCHAP_SUCCESS2:
     563           0 :                         nvmf_auth_success2_exec(req, (void *)header);
     564           0 :                         break;
     565           0 :                 default:
     566           0 :                         AUTH_ERRLOG(qpair, "unexpected auth_id=%u\n", header->auth_id);
     567           0 :                         nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     568           0 :                         break;
     569             :                 }
     570           0 :                 break;
     571           0 :         default:
     572           0 :                 AUTH_ERRLOG(qpair, "unexpected auth_type=%u\n", header->auth_type);
     573           0 :                 nvmf_auth_request_fail1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     574           0 :                 break;
     575             :         }
     576             : }
     577             : 
     578             : static void
     579           0 : nvmf_auth_recv_complete(struct spdk_nvmf_request *req, uint32_t length)
     580             : {
     581           0 :         assert(req->cmd->nvmf_cmd.fctype == SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV);
     582           0 :         req->length = length;
     583           0 :         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC, SPDK_NVME_SC_SUCCESS, 0);
     584           0 : }
     585             : 
     586             : static void
     587           0 : nvmf_auth_recv_failure1(struct spdk_nvmf_request *req, int fail_reason)
     588             : {
     589           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     590           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     591             :         struct spdk_nvmf_auth_failure *failure;
     592             : 
     593           0 :         failure = nvmf_auth_get_message(req, sizeof(*failure));
     594           0 :         if (failure == NULL) {
     595           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     596             :                                            SPDK_NVME_SC_INVALID_FIELD, 1);
     597           0 :                 nvmf_auth_disconnect_qpair(qpair);
     598           0 :                 return;
     599             :         }
     600             : 
     601           0 :         failure->auth_type = SPDK_NVMF_AUTH_TYPE_COMMON_MESSAGE;
     602           0 :         failure->auth_id = SPDK_NVMF_AUTH_ID_FAILURE1;
     603           0 :         failure->t_id = auth->tid;
     604           0 :         failure->rc = SPDK_NVMF_AUTH_FAILURE;
     605           0 :         failure->rce = fail_reason;
     606             : 
     607           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_FAILURE1);
     608           0 :         nvmf_auth_recv_complete(req, sizeof(*failure));
     609           0 :         nvmf_auth_disconnect_qpair(qpair);
     610             : }
     611             : 
     612             : static int
     613           0 : nvmf_auth_get_seqnum(struct spdk_nvmf_qpair *qpair)
     614             : {
     615           0 :         struct spdk_nvmf_subsystem *subsys = qpair->ctrlr->subsys;
     616           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     617             :         int rc;
     618             : 
     619           0 :         pthread_mutex_lock(&subsys->mutex);
     620           0 :         if (subsys->auth_seqnum == 0) {
     621           0 :                 rc = RAND_bytes((void *)&subsys->auth_seqnum, sizeof(subsys->auth_seqnum));
     622           0 :                 if (rc != 1) {
     623           0 :                         pthread_mutex_unlock(&subsys->mutex);
     624           0 :                         return -EIO;
     625             :                 }
     626             :         }
     627           0 :         if (++subsys->auth_seqnum == 0) {
     628           0 :                 subsys->auth_seqnum = 1;
     629             : 
     630             :         }
     631           0 :         auth->seqnum = subsys->auth_seqnum;
     632           0 :         pthread_mutex_unlock(&subsys->mutex);
     633             : 
     634           0 :         return 0;
     635             : }
     636             : 
     637             : static int
     638           0 : nvmf_auth_recv_challenge(struct spdk_nvmf_request *req)
     639             : {
     640           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     641           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     642             :         struct spdk_nvmf_dhchap_challenge *challenge;
     643           0 :         uint8_t hl, dhv[NVMF_AUTH_DH_KEY_MAX_SIZE];
     644           0 :         size_t dhvlen = 0;
     645             :         int rc;
     646             : 
     647           0 :         hl = spdk_nvme_dhchap_get_digest_length(auth->digest);
     648           0 :         assert(hl > 0 && hl <= sizeof(auth->cval));
     649             : 
     650           0 :         if (auth->dhgroup != SPDK_NVMF_DHCHAP_DHGROUP_NULL) {
     651           0 :                 auth->dhkey = spdk_nvme_dhchap_generate_dhkey(auth->dhgroup);
     652           0 :                 if (auth->dhkey == NULL) {
     653           0 :                         AUTH_ERRLOG(qpair, "failed to generate DH key\n");
     654           0 :                         return SPDK_NVMF_AUTH_FAILED;
     655             :                 }
     656             : 
     657           0 :                 dhvlen = sizeof(dhv);
     658           0 :                 rc = spdk_nvme_dhchap_dhkey_get_pubkey(auth->dhkey, dhv, &dhvlen);
     659           0 :                 if (rc != 0) {
     660           0 :                         AUTH_ERRLOG(qpair, "failed to get DH public key\n");
     661           0 :                         return SPDK_NVMF_AUTH_FAILED;
     662             :                 }
     663             : 
     664           0 :                 AUTH_LOGDUMP("ctrlr pubkey:", dhv, dhvlen);
     665             :         }
     666             : 
     667           0 :         challenge = nvmf_auth_get_message(req, sizeof(*challenge) + hl + dhvlen);
     668           0 :         if (challenge == NULL) {
     669           0 :                 AUTH_ERRLOG(qpair, "invalid message length: %"PRIu32"\n", req->length);
     670           0 :                 return SPDK_NVMF_AUTH_INCORRECT_PAYLOAD;
     671             :         }
     672           0 :         rc = nvmf_auth_get_seqnum(qpair);
     673           0 :         if (rc != 0) {
     674           0 :                 return SPDK_NVMF_AUTH_FAILED;
     675             :         }
     676           0 :         rc = RAND_bytes(auth->cval, hl);
     677           0 :         if (rc != 1) {
     678           0 :                 return SPDK_NVMF_AUTH_FAILED;
     679             :         }
     680           0 :         if (nvmf_auth_rearm_poller(qpair)) {
     681           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     682             :                                            SPDK_NVME_SC_INTERNAL_DEVICE_ERROR, 1);
     683           0 :                 nvmf_auth_disconnect_qpair(qpair);
     684           0 :                 return 0;
     685             :         }
     686             : 
     687           0 :         memcpy(challenge->cval, auth->cval, hl);
     688           0 :         memcpy(&challenge->cval[hl], dhv, dhvlen);
     689           0 :         challenge->auth_type = SPDK_NVMF_AUTH_TYPE_DHCHAP;
     690           0 :         challenge->auth_id = SPDK_NVMF_AUTH_ID_DHCHAP_CHALLENGE;
     691           0 :         challenge->t_id = auth->tid;
     692           0 :         challenge->hl = hl;
     693           0 :         challenge->hash_id = (uint8_t)auth->digest;
     694           0 :         challenge->dhg_id = (uint8_t)auth->dhgroup;
     695           0 :         challenge->dhvlen = dhvlen;
     696           0 :         challenge->seqnum = auth->seqnum;
     697             : 
     698           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_REPLY);
     699           0 :         nvmf_auth_recv_complete(req, sizeof(*challenge) + hl + dhvlen);
     700             : 
     701           0 :         return 0;
     702             : }
     703             : 
     704             : static int
     705           0 : nvmf_auth_recv_success1(struct spdk_nvmf_request *req)
     706             : {
     707           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     708           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     709             :         struct spdk_nvmf_dhchap_success1 *success;
     710             :         uint8_t hl;
     711             : 
     712           0 :         hl = spdk_nvme_dhchap_get_digest_length(auth->digest);
     713           0 :         success = nvmf_auth_get_message(req, sizeof(*success) + auth->cvalid * hl);
     714           0 :         if (success == NULL) {
     715           0 :                 AUTH_ERRLOG(qpair, "invalid message length: %"PRIu32"\n", req->length);
     716           0 :                 return SPDK_NVMF_AUTH_INCORRECT_PAYLOAD;
     717             :         }
     718             : 
     719           0 :         AUTH_DEBUGLOG(qpair, "host authentication successful\n");
     720           0 :         success->auth_type = SPDK_NVMF_AUTH_TYPE_DHCHAP;
     721           0 :         success->auth_id = SPDK_NVMF_AUTH_ID_DHCHAP_SUCCESS1;
     722           0 :         success->t_id = auth->tid;
     723             :         /* Kernel initiator always expects hl to be set, regardless of rvalid */
     724           0 :         success->hl = hl;
     725           0 :         success->rvalid = 0;
     726             : 
     727           0 :         if (!auth->cvalid) {
     728             :                 /* Host didn't request to authenticate us, we're done */
     729           0 :                 nvmf_qpair_set_state(qpair, SPDK_NVMF_QPAIR_ENABLED);
     730           0 :                 nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_COMPLETED);
     731           0 :                 nvmf_auth_qpair_cleanup(auth);
     732             :         } else {
     733           0 :                 if (nvmf_auth_rearm_poller(qpair)) {
     734           0 :                         nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     735             :                                                    SPDK_NVME_SC_INTERNAL_DEVICE_ERROR, 1);
     736           0 :                         nvmf_auth_disconnect_qpair(qpair);
     737           0 :                         return 0;
     738             :                 }
     739           0 :                 AUTH_DEBUGLOG(qpair, "cvalid=1, starting controller authentication\n");
     740           0 :                 nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_SUCCESS2);
     741           0 :                 memcpy(success->rval, auth->cval, hl);
     742           0 :                 success->rvalid = 1;
     743             :         }
     744             : 
     745           0 :         nvmf_auth_recv_complete(req, sizeof(*success) + auth->cvalid * hl);
     746           0 :         return 0;
     747             : }
     748             : 
     749             : static void
     750           0 : nvmf_auth_recv_exec(struct spdk_nvmf_request *req)
     751             : {
     752           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     753           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     754           0 :         struct spdk_nvmf_fabric_auth_recv_cmd *cmd = &req->cmd->auth_recv_cmd;
     755             :         int rc;
     756             : 
     757           0 :         rc = nvmf_auth_check_command(req, cmd->secp, cmd->spsp0, cmd->spsp1, cmd->al);
     758           0 :         if (rc != 0) {
     759           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     760             :                                            SPDK_NVME_SC_INVALID_FIELD, 1);
     761           0 :                 return;
     762             :         }
     763             : 
     764           0 :         spdk_iov_memset(req->iov, req->iovcnt, 0);
     765           0 :         switch (auth->state) {
     766           0 :         case NVMF_QPAIR_AUTH_CHALLENGE:
     767           0 :                 rc = nvmf_auth_recv_challenge(req);
     768           0 :                 if (rc != 0) {
     769           0 :                         nvmf_auth_recv_failure1(req, rc);
     770             :                 }
     771           0 :                 break;
     772           0 :         case NVMF_QPAIR_AUTH_SUCCESS1:
     773           0 :                 rc = nvmf_auth_recv_success1(req);
     774           0 :                 if (rc != 0) {
     775           0 :                         nvmf_auth_recv_failure1(req, rc);
     776             :                 }
     777           0 :                 break;
     778           0 :         case NVMF_QPAIR_AUTH_FAILURE1:
     779           0 :                 nvmf_auth_recv_failure1(req, auth->fail_reason);
     780           0 :                 break;
     781           0 :         default:
     782           0 :                 nvmf_auth_recv_failure1(req, SPDK_NVMF_AUTH_INCORRECT_PROTOCOL_MESSAGE);
     783           0 :                 break;
     784             :         }
     785             : }
     786             : 
     787             : int
     788           0 : nvmf_auth_request_exec(struct spdk_nvmf_request *req)
     789             : {
     790           0 :         struct spdk_nvmf_qpair *qpair = req->qpair;
     791           0 :         union nvmf_h2c_msg *cmd = req->cmd;
     792             : 
     793             :         /* We don't support reauthentication */
     794           0 :         if (qpair->state != SPDK_NVMF_QPAIR_AUTHENTICATING) {
     795           0 :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     796             :                                            SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR, 0);
     797           0 :                 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     798             :         }
     799             : 
     800           0 :         assert(cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC);
     801           0 :         switch (cmd->nvmf_cmd.fctype) {
     802           0 :         case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_SEND:
     803           0 :                 nvmf_auth_send_exec(req);
     804           0 :                 break;
     805           0 :         case SPDK_NVMF_FABRIC_COMMAND_AUTHENTICATION_RECV:
     806           0 :                 nvmf_auth_recv_exec(req);
     807           0 :                 break;
     808           0 :         default:
     809           0 :                 assert(0 && "invalid fctype");
     810             :                 nvmf_auth_request_complete(req, SPDK_NVME_SCT_GENERIC,
     811             :                                            SPDK_NVME_SC_INTERNAL_DEVICE_ERROR, 0);
     812             :                 break;
     813             :         }
     814             : 
     815           0 :         return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
     816             : }
     817             : 
     818             : int
     819           0 : nvmf_qpair_auth_init(struct spdk_nvmf_qpair *qpair)
     820             : {
     821             :         struct spdk_nvmf_qpair_auth *auth;
     822             :         int rc;
     823             : 
     824           0 :         assert(qpair->auth == NULL);
     825           0 :         auth = calloc(1, sizeof(*qpair->auth));
     826           0 :         if (auth == NULL) {
     827           0 :                 return -ENOMEM;
     828             :         }
     829             : 
     830           0 :         auth->digest = -1;
     831           0 :         qpair->auth = auth;
     832           0 :         nvmf_auth_set_state(qpair, NVMF_QPAIR_AUTH_NEGOTIATE);
     833             : 
     834           0 :         rc = nvmf_auth_rearm_poller(qpair);
     835           0 :         if (rc != 0) {
     836           0 :                 AUTH_ERRLOG(qpair, "failed to arm timeout poller: %s\n", spdk_strerror(-rc));
     837           0 :                 nvmf_qpair_auth_destroy(qpair);
     838           0 :                 return rc;
     839             :         }
     840             : 
     841           0 :         return 0;
     842             : }
     843             : 
     844             : void
     845           0 : nvmf_qpair_auth_destroy(struct spdk_nvmf_qpair *qpair)
     846             : {
     847           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     848             : 
     849           0 :         if (auth != NULL) {
     850           0 :                 nvmf_auth_qpair_cleanup(auth);
     851           0 :                 free(qpair->auth);
     852           0 :                 qpair->auth = NULL;
     853             :         }
     854           0 : }
     855             : 
     856             : void
     857           0 : nvmf_qpair_auth_dump(struct spdk_nvmf_qpair *qpair, struct spdk_json_write_ctx *w)
     858             : {
     859           0 :         struct spdk_nvmf_qpair_auth *auth = qpair->auth;
     860             :         const char *digest, *dhgroup;
     861             : 
     862           0 :         if (auth == NULL) {
     863           0 :                 return;
     864             :         }
     865             : 
     866           0 :         spdk_json_write_named_object_begin(w, "auth");
     867           0 :         spdk_json_write_named_string(w, "state", nvmf_auth_get_state_name(auth->state));
     868           0 :         digest = spdk_nvme_dhchap_get_digest_name(auth->digest);
     869           0 :         spdk_json_write_named_string(w, "digest", digest ? digest : "unknown");
     870           0 :         dhgroup = spdk_nvme_dhchap_get_dhgroup_name(auth->dhgroup);
     871           0 :         spdk_json_write_named_string(w, "dhgroup", dhgroup ? dhgroup : "unknown");
     872           0 :         spdk_json_write_object_end(w);
     873             : }
     874             : 
     875             : bool
     876           0 : nvmf_auth_is_supported(void)
     877             : {
     878           0 :         return true;
     879             : }
     880           0 : SPDK_LOG_REGISTER_COMPONENT(nvmf_auth)

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