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LU-867 ptlrpc: Resolve section mismatch
[fs/lustre-release.git] / lustre / ptlrpc / sec.c
index bf7db85..3487211 100644 (file)
@@ -287,7 +287,6 @@ struct ptlrpc_cli_ctx *get_my_ctx(struct ptlrpc_sec *sec)
 
 struct ptlrpc_cli_ctx *sptlrpc_cli_ctx_get(struct ptlrpc_cli_ctx *ctx)
 {
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount) > 0);
         cfs_atomic_inc(&ctx->cc_refcount);
         return ctx;
 }
@@ -298,7 +297,7 @@ void sptlrpc_cli_ctx_put(struct ptlrpc_cli_ctx *ctx, int sync)
         struct ptlrpc_sec *sec = ctx->cc_sec;
 
         LASSERT(sec);
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount));
+        LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
         if (!cfs_atomic_dec_and_test(&ctx->cc_refcount))
                 return;
@@ -462,9 +461,9 @@ int sptlrpc_req_ctx_switch(struct ptlrpc_request *req,
                            struct ptlrpc_cli_ctx *newctx)
 {
         struct sptlrpc_flavor   old_flvr;
-        char                   *reqmsg;
+        char                   *reqmsg = NULL; /* to workaround old gcc */
         int                     reqmsg_size;
-        int                     rc;
+        int                     rc = 0;
 
         LASSERT(req->rq_reqmsg);
         LASSERT(req->rq_reqlen);
@@ -482,10 +481,12 @@ int sptlrpc_req_ctx_switch(struct ptlrpc_request *req,
 
         /* save request message */
         reqmsg_size = req->rq_reqlen;
-        OBD_ALLOC(reqmsg, reqmsg_size);
-        if (reqmsg == NULL)
-                return -ENOMEM;
-        memcpy(reqmsg, req->rq_reqmsg, reqmsg_size);
+        if (reqmsg_size != 0) {
+                OBD_ALLOC_LARGE(reqmsg, reqmsg_size);
+                if (reqmsg == NULL)
+                        return -ENOMEM;
+                memcpy(reqmsg, req->rq_reqmsg, reqmsg_size);
+        }
 
         /* release old req/rep buf */
         req->rq_cli_ctx = oldctx;
@@ -498,18 +499,19 @@ int sptlrpc_req_ctx_switch(struct ptlrpc_request *req,
 
         /* alloc new request buffer
          * we don't need to alloc reply buffer here, leave it to the
-         * rest procedure of ptlrpc
-         */
-        rc = sptlrpc_cli_alloc_reqbuf(req, reqmsg_size);
-        if (!rc) {
-                LASSERT(req->rq_reqmsg);
-                memcpy(req->rq_reqmsg, reqmsg, reqmsg_size);
-        } else {
-                CWARN("failed to alloc reqbuf: %d\n", rc);
-                req->rq_flvr = old_flvr;
-        }
+         * rest procedure of ptlrpc */
+        if (reqmsg_size != 0) {
+                rc = sptlrpc_cli_alloc_reqbuf(req, reqmsg_size);
+                if (!rc) {
+                        LASSERT(req->rq_reqmsg);
+                        memcpy(req->rq_reqmsg, reqmsg, reqmsg_size);
+                } else {
+                        CWARN("failed to alloc reqbuf: %d\n", rc);
+                        req->rq_flvr = old_flvr;
+                }
 
-        OBD_FREE(reqmsg, reqmsg_size);
+                OBD_FREE_LARGE(reqmsg, reqmsg_size);
+        }
         return rc;
 }
 
@@ -820,6 +822,7 @@ void sptlrpc_req_set_flavor(struct ptlrpc_request *req, int opcode)
         switch (opcode) {
         case OST_READ:
         case MDS_READPAGE:
+        case MGS_CONFIG_READ:
                 req->rq_bulk_read = 1;
                 break;
         case OST_WRITE:
@@ -1107,7 +1110,7 @@ int sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
 
         early_size = req->rq_nob_received;
         early_bufsz = size_roundup_power2(early_size);
-        OBD_ALLOC(early_buf, early_bufsz);
+        OBD_ALLOC_LARGE(early_buf, early_bufsz);
         if (early_buf == NULL)
                 GOTO(err_req, rc = -ENOMEM);
 
@@ -1171,7 +1174,7 @@ int sptlrpc_cli_unwrap_early_reply(struct ptlrpc_request *req,
 err_ctx:
         sptlrpc_cli_ctx_put(early_req->rq_cli_ctx, 1);
 err_buf:
-        OBD_FREE(early_buf, early_bufsz);
+        OBD_FREE_LARGE(early_buf, early_bufsz);
 err_req:
         OBD_FREE_PTR(early_req);
         RETURN(rc);
@@ -1189,7 +1192,7 @@ void sptlrpc_cli_finish_early_reply(struct ptlrpc_request *early_req)
         LASSERT(early_req->rq_repmsg);
 
         sptlrpc_cli_ctx_put(early_req->rq_cli_ctx, 1);
-        OBD_FREE(early_req->rq_repbuf, early_req->rq_repbuf_len);
+        OBD_FREE_LARGE(early_req->rq_repbuf, early_req->rq_repbuf_len);
         OBD_FREE_PTR(early_req);
 }
 
@@ -1227,8 +1230,8 @@ static void sec_cop_destroy_sec(struct ptlrpc_sec *sec)
 {
         struct ptlrpc_sec_policy *policy = sec->ps_policy;
 
-        LASSERT(cfs_atomic_read(&sec->ps_refcount) == 0);
-        LASSERT(cfs_atomic_read(&sec->ps_nctx) == 0);
+        LASSERT_ATOMIC_ZERO(&sec->ps_refcount);
+        LASSERT_ATOMIC_ZERO(&sec->ps_nctx);
         LASSERT(policy->sp_cops->destroy_sec);
 
         CDEBUG(D_SEC, "%s@%p: being destroied\n", sec->ps_policy->sp_name, sec);
@@ -1245,7 +1248,7 @@ EXPORT_SYMBOL(sptlrpc_sec_destroy);
 
 static void sptlrpc_sec_kill(struct ptlrpc_sec *sec)
 {
-        LASSERT(cfs_atomic_read(&sec->ps_refcount) > 0);
+        LASSERT_ATOMIC_POS(&sec->ps_refcount);
 
         if (sec->ps_policy->sp_cops->kill_sec) {
                 sec->ps_policy->sp_cops->kill_sec(sec);
@@ -1256,10 +1259,8 @@ static void sptlrpc_sec_kill(struct ptlrpc_sec *sec)
 
 struct ptlrpc_sec *sptlrpc_sec_get(struct ptlrpc_sec *sec)
 {
-        if (sec) {
-                LASSERT(cfs_atomic_read(&sec->ps_refcount) > 0);
+        if (sec)
                 cfs_atomic_inc(&sec->ps_refcount);
-        }
 
         return sec;
 }
@@ -1268,11 +1269,9 @@ EXPORT_SYMBOL(sptlrpc_sec_get);
 void sptlrpc_sec_put(struct ptlrpc_sec *sec)
 {
         if (sec) {
-                LASSERT(cfs_atomic_read(&sec->ps_refcount) > 0);
+                LASSERT_ATOMIC_POS(&sec->ps_refcount);
 
                 if (cfs_atomic_dec_and_test(&sec->ps_refcount)) {
-                        LASSERT(cfs_atomic_read(&sec->ps_nctx) == 0);
-
                         sptlrpc_gc_del_sec(sec);
                         sec_cop_destroy_sec(sec);
                 }
@@ -1351,7 +1350,7 @@ static void sptlrpc_import_sec_install(struct obd_import *imp,
 {
         struct ptlrpc_sec *old_sec;
 
-        LASSERT(cfs_atomic_read(&sec->ps_refcount) > 0);
+        LASSERT_ATOMIC_POS(&sec->ps_refcount);
 
         cfs_spin_lock(&imp->imp_lock);
         old_sec = imp->imp_sec;
@@ -1468,12 +1467,12 @@ int sptlrpc_import_sec_adapt(struct obd_import *imp,
                         sptlrpc_import_sec_adapt_inplace(imp, sec, &sf);
                         GOTO(out, rc);
                 }
-        } else {
-                CWARN("import %s->%s netid %x: select flavor %s\n",
-                      imp->imp_obd->obd_name,
-                      obd_uuid2str(&conn->c_remote_uuid),
-                      LNET_NIDNET(conn->c_self),
-                      sptlrpc_flavor2name(&sf, str, sizeof(str)));
+        } else if (sptlrpc_flavor2name_base(sf.sf_rpc) != SPTLRPC_FLVR_NULL) {
+                LCONSOLE_INFO("import %s->%s netid %x: select flavor %s\n",
+                              imp->imp_obd->obd_name,
+                              obd_uuid2str(&conn->c_remote_uuid),
+                              LNET_NIDNET(conn->c_self),
+                              sptlrpc_flavor2name(&sf, str, sizeof(str)));
         }
 
         cfs_mutex_down(&imp->imp_sec_mutex);
@@ -1550,10 +1549,10 @@ int sptlrpc_cli_alloc_reqbuf(struct ptlrpc_request *req, int msgsize)
         int rc;
 
         LASSERT(ctx);
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount));
         LASSERT(ctx->cc_sec);
         LASSERT(ctx->cc_sec->ps_policy);
         LASSERT(req->rq_reqmsg == NULL);
+        LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
         policy = ctx->cc_sec->ps_policy;
         rc = policy->sp_cops->alloc_reqbuf(ctx->cc_sec, req, msgsize);
@@ -1579,9 +1578,9 @@ void sptlrpc_cli_free_reqbuf(struct ptlrpc_request *req)
         struct ptlrpc_sec_policy *policy;
 
         LASSERT(ctx);
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount));
         LASSERT(ctx->cc_sec);
         LASSERT(ctx->cc_sec->ps_policy);
+        LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
         if (req->rq_reqbuf == NULL && req->rq_clrbuf == NULL)
                 return;
@@ -1677,7 +1676,6 @@ int sptlrpc_cli_alloc_repbuf(struct ptlrpc_request *req, int msgsize)
         ENTRY;
 
         LASSERT(ctx);
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount));
         LASSERT(ctx->cc_sec);
         LASSERT(ctx->cc_sec->ps_policy);
 
@@ -1699,9 +1697,9 @@ void sptlrpc_cli_free_repbuf(struct ptlrpc_request *req)
         ENTRY;
 
         LASSERT(ctx);
-        LASSERT(cfs_atomic_read(&ctx->cc_refcount));
         LASSERT(ctx->cc_sec);
         LASSERT(ctx->cc_sec->ps_policy);
+        LASSERT_ATOMIC_POS(&ctx->cc_refcount);
 
         if (req->rq_repbuf == NULL)
                 return;
@@ -1805,12 +1803,14 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 
                 /* if it's gss, we only interested in root ctx init */
                 if (req->rq_auth_gss &&
-                    !(req->rq_ctx_init && (req->rq_auth_usr_root ||
-                                           req->rq_auth_usr_mdt))) {
+                    !(req->rq_ctx_init &&
+                      (req->rq_auth_usr_root || req->rq_auth_usr_mdt ||
+                       req->rq_auth_usr_ost))) {
                         cfs_spin_unlock(&exp->exp_lock);
-                        CDEBUG(D_SEC, "is good but not root(%d:%d:%d:%d)\n",
+                        CDEBUG(D_SEC, "is good but not root(%d:%d:%d:%d:%d)\n",
                                req->rq_auth_gss, req->rq_ctx_init,
-                               req->rq_auth_usr_root, req->rq_auth_usr_mdt);
+                               req->rq_auth_usr_root, req->rq_auth_usr_mdt,
+                               req->rq_auth_usr_ost);
                         return 0;
                 }
 
@@ -1827,7 +1827,8 @@ int sptlrpc_target_export_check(struct obd_export *exp,
                 /* most cases should return here, we only interested in
                  * gss root ctx init */
                 if (!req->rq_auth_gss || !req->rq_ctx_init ||
-                    (!req->rq_auth_usr_root && !req->rq_auth_usr_mdt)) {
+                    (!req->rq_auth_usr_root && !req->rq_auth_usr_mdt &&
+                     !req->rq_auth_usr_ost)) {
                         cfs_spin_unlock(&exp->exp_lock);
                         return 0;
                 }
@@ -1919,11 +1920,12 @@ int sptlrpc_target_export_check(struct obd_export *exp,
 
         cfs_spin_unlock(&exp->exp_lock);
 
-        CWARN("exp %p(%s): req %p (%u|%u|%u|%u|%u) with "
+        CWARN("exp %p(%s): req %p (%u|%u|%u|%u|%u|%u) with "
               "unauthorized flavor %x, expect %x|%x(%+ld)|%x(%+ld)\n",
               exp, exp->exp_obd->obd_name,
               req, req->rq_auth_gss, req->rq_ctx_init, req->rq_ctx_fini,
-              req->rq_auth_usr_root, req->rq_auth_usr_mdt, req->rq_flvr.sf_rpc,
+              req->rq_auth_usr_root, req->rq_auth_usr_mdt, req->rq_auth_usr_ost,
+              req->rq_flvr.sf_rpc,
               exp->exp_flvr.sf_rpc,
               exp->exp_flvr_old[0].sf_rpc,
               exp->exp_flvr_expire[0] ?
@@ -1979,43 +1981,41 @@ EXPORT_SYMBOL(sptlrpc_target_update_exp_flavor);
 
 static int sptlrpc_svc_check_from(struct ptlrpc_request *req, int svc_rc)
 {
-        if (svc_rc == SECSVC_DROP)
-                return SECSVC_DROP;
+        /* peer's claim is unreliable unless gss is being used */
+        if (!req->rq_auth_gss || svc_rc == SECSVC_DROP)
+                return svc_rc;
 
         switch (req->rq_sp_from) {
         case LUSTRE_SP_CLI:
+                if (req->rq_auth_usr_mdt || req->rq_auth_usr_ost) {
+                        DEBUG_REQ(D_ERROR, req, "faked source CLI");
+                        svc_rc = SECSVC_DROP;
+                }
+                break;
         case LUSTRE_SP_MDT:
+                if (!req->rq_auth_usr_mdt) {
+                        DEBUG_REQ(D_ERROR, req, "faked source MDT");
+                        svc_rc = SECSVC_DROP;
+                }
+                break;
         case LUSTRE_SP_OST:
-        case LUSTRE_SP_MGC:
+                if (!req->rq_auth_usr_ost) {
+                        DEBUG_REQ(D_ERROR, req, "faked source OST");
+                        svc_rc = SECSVC_DROP;
+                }
+                break;
         case LUSTRE_SP_MGS:
-        case LUSTRE_SP_ANY:
+        case LUSTRE_SP_MGC:
+                if (!req->rq_auth_usr_root && !req->rq_auth_usr_mdt &&
+                    !req->rq_auth_usr_ost) {
+                        DEBUG_REQ(D_ERROR, req, "faked source MGC/MGS");
+                        svc_rc = SECSVC_DROP;
+                }
                 break;
+        case LUSTRE_SP_ANY:
         default:
                 DEBUG_REQ(D_ERROR, req, "invalid source %u", req->rq_sp_from);
-                return SECSVC_DROP;
-        }
-
-        if (!req->rq_auth_gss)
-                return svc_rc;
-
-        if (unlikely(req->rq_sp_from == LUSTRE_SP_ANY)) {
-                CERROR("not specific part\n");
-                return SECSVC_DROP;
-        }
-
-        /* from MDT, must be authenticated as MDT */
-        if (unlikely(req->rq_sp_from == LUSTRE_SP_MDT &&
-                     !req->rq_auth_usr_mdt)) {
-                DEBUG_REQ(D_ERROR, req, "fake source MDT");
-                return SECSVC_DROP;
-        }
-
-        /* from OST, must be callback to MDT and CLI, the reverse sec
-         * was from mdt/root keytab, so it should be MDT or root FIXME */
-        if (unlikely(req->rq_sp_from == LUSTRE_SP_OST &&
-                     !req->rq_auth_usr_mdt && !req->rq_auth_usr_root)) {
-                DEBUG_REQ(D_ERROR, req, "fake source OST");
-                return SECSVC_DROP;
+                svc_rc = SECSVC_DROP;
         }
 
         return svc_rc;
@@ -2177,11 +2177,8 @@ void sptlrpc_svc_ctx_addref(struct ptlrpc_request *req)
 {
         struct ptlrpc_svc_ctx *ctx = req->rq_svc_ctx;
 
-        if (ctx == NULL)
-                return;
-
-        LASSERT(cfs_atomic_read(&ctx->sc_refcount) > 0);
-        cfs_atomic_inc(&ctx->sc_refcount);
+        if (ctx != NULL)
+                cfs_atomic_inc(&ctx->sc_refcount);
 }
 
 void sptlrpc_svc_ctx_decref(struct ptlrpc_request *req)
@@ -2191,7 +2188,7 @@ void sptlrpc_svc_ctx_decref(struct ptlrpc_request *req)
         if (ctx == NULL)
                 return;
 
-        LASSERT(cfs_atomic_read(&ctx->sc_refcount) > 0);
+        LASSERT_ATOMIC_POS(&ctx->sc_refcount);
         if (cfs_atomic_dec_and_test(&ctx->sc_refcount)) {
                 if (ctx->sc_policy->sp_sops->free_ctx)
                         ctx->sc_policy->sp_sops->free_ctx(ctx);
@@ -2206,7 +2203,7 @@ void sptlrpc_svc_ctx_invalidate(struct ptlrpc_request *req)
         if (ctx == NULL)
                 return;
 
-        LASSERT(cfs_atomic_read(&ctx->sc_refcount) > 0);
+        LASSERT_ATOMIC_POS(&ctx->sc_refcount);
         if (ctx->sc_policy->sp_sops->invalidate_ctx)
                 ctx->sc_policy->sp_sops->invalidate_ctx(ctx);
 }
@@ -2502,7 +2499,7 @@ EXPORT_SYMBOL(sptlrpc_flavor_has_bulk);
  * initialize/finalize                  *
  ****************************************/
 
-int __init sptlrpc_init(void)
+int sptlrpc_init(void)
 {
         int rc;
 
@@ -2548,7 +2545,7 @@ out:
         return rc;
 }
 
-void __exit sptlrpc_fini(void)
+void sptlrpc_fini(void)
 {
         sptlrpc_lproc_fini();
         sptlrpc_plain_fini();