LCOV - code coverage report
Current view: top level - source3/torture - test_dbwrap_watch.c (source / functions) Hit Total Coverage
Test: coverage report for master 2b515b7d Lines: 185 253 73.1 %
Date: 2024-02-28 12:06:22 Functions: 8 8 100.0 %

          Line data    Source code
       1             : /*
       2             :    Unix SMB/CIFS implementation.
       3             :    Test dbwrap_watch API
       4             :    Copyright (C) Volker Lendecke 2012
       5             : 
       6             :    This program is free software; you can redistribute it and/or modify
       7             :    it under the terms of the GNU General Public License as published by
       8             :    the Free Software Foundation; either version 3 of the License, or
       9             :    (at your option) any later version.
      10             : 
      11             :    This program is distributed in the hope that it will be useful,
      12             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             :    GNU General Public License for more details.
      15             : 
      16             :    You should have received a copy of the GNU General Public License
      17             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      18             : */
      19             : 
      20             : #include "includes.h"
      21             : #include "torture/proto.h"
      22             : #include "system/filesys.h"
      23             : #include "lib/dbwrap/dbwrap.h"
      24             : #include "lib/dbwrap/dbwrap_open.h"
      25             : #include "lib/dbwrap/dbwrap_watch.h"
      26             : #include "lib/util/util_tdb.h"
      27             : 
      28           5 : static bool test_dbwrap_watch_init(
      29             :         TALLOC_CTX *mem_ctx,
      30             :         const char *dbname,
      31             :         struct tevent_context **pev,
      32             :         struct messaging_context **pmsg,
      33             :         struct db_context **pbackend,
      34             :         struct db_context **pdb)
      35             : {
      36           5 :         struct tevent_context *ev = NULL;
      37           5 :         struct messaging_context *msg = NULL;
      38           5 :         struct db_context *backend = NULL;
      39           5 :         struct db_context *db = NULL;
      40             : 
      41           5 :         ev = samba_tevent_context_init(mem_ctx);
      42           5 :         if (ev == NULL) {
      43           0 :                 fprintf(stderr, "tevent_context_init failed\n");
      44           0 :                 goto fail;
      45             :         }
      46             : 
      47           5 :         msg = messaging_init(ev, ev);
      48           5 :         if (msg == NULL) {
      49           0 :                 fprintf(stderr, "messaging_init failed\n");
      50           0 :                 goto fail;
      51             :         }
      52             : 
      53           5 :         backend = db_open(
      54             :                 msg,
      55             :                 dbname,
      56             :                 0,
      57             :                 TDB_CLEAR_IF_FIRST,
      58             :                 O_CREAT|O_RDWR,
      59             :                 0644,
      60             :                 DBWRAP_LOCK_ORDER_1,
      61             :                 DBWRAP_FLAG_NONE);
      62           5 :         if (backend == NULL) {
      63           0 :                 fprintf(stderr, "db_open failed: %s\n", strerror(errno));
      64           0 :                 goto fail;
      65             :         }
      66             : 
      67             :         {
      68           5 :                 struct db_context *backend_copy = backend;
      69             : 
      70           5 :                 db = db_open_watched(ev, &backend_copy, msg);
      71           5 :                 if (db == NULL) {
      72           0 :                         fprintf(stderr, "db_open_watched failed\n");
      73           0 :                         goto fail;
      74             :                 }
      75             :         }
      76             : 
      77           5 :         if (pev != NULL) {
      78           5 :                 *pev = ev;
      79             :         }
      80           5 :         if (pmsg != NULL) {
      81           5 :                 *pmsg = msg;
      82             :         }
      83           5 :         if (pbackend != NULL) {
      84           5 :                 *pbackend = backend;
      85             :         }
      86           5 :         if (pdb != NULL) {
      87           5 :                 *pdb = db;
      88             :         }
      89           0 :         return true;
      90             : 
      91           0 : fail:
      92           0 :         TALLOC_FREE(backend);
      93           0 :         TALLOC_FREE(msg);
      94           0 :         TALLOC_FREE(ev);
      95           0 :         return false;
      96             : }
      97             : 
      98           1 : bool run_dbwrap_watch1(int dummy)
      99             : {
     100           1 :         struct tevent_context *ev = NULL;
     101           1 :         struct messaging_context *msg = NULL;
     102           1 :         struct db_context *backend = NULL;
     103           1 :         struct db_context *db = NULL;
     104           1 :         const char *keystr = "key";
     105           1 :         TDB_DATA key = string_term_tdb_data(keystr);
     106           1 :         struct db_record *rec = NULL;
     107           1 :         struct tevent_req *req = NULL;
     108           1 :         NTSTATUS status;
     109           1 :         bool ret = false;
     110             : 
     111           1 :         ret = test_dbwrap_watch_init(
     112             :                 talloc_tos(), "test_watch.tdb", &ev, &msg, &backend, &db);
     113           1 :         if (!ret) {
     114           0 :                 goto fail;
     115             :         }
     116             : 
     117           1 :         rec = dbwrap_fetch_locked(db, db, key);
     118           1 :         if (rec == NULL) {
     119           0 :                 fprintf(stderr, "dbwrap_fetch_locked failed\n");
     120           0 :                 goto fail;
     121             :         }
     122           1 :         req = dbwrap_watched_watch_send(talloc_tos(), ev, rec,
     123             :                                         0, /* resume_instance */
     124           1 :                                         (struct server_id){0});
     125           1 :         if (req == NULL) {
     126           0 :                 fprintf(stderr, "dbwrap_record_watch_send failed\n");
     127           0 :                 goto fail;
     128             :         }
     129           1 :         TALLOC_FREE(rec);
     130             : 
     131           1 :         status = dbwrap_store_int32_bystring(db, "different_key", 1);
     132           1 :         if (!NT_STATUS_IS_OK(status)) {
     133           0 :                 fprintf(stderr, "dbwrap_store_int32 failed: %s\n",
     134             :                         nt_errstr(status));
     135           0 :                 goto fail;
     136             :         }
     137             : 
     138           1 :         status = dbwrap_store_int32_bystring(db, keystr, 1);
     139           1 :         if (!NT_STATUS_IS_OK(status)) {
     140           0 :                 fprintf(stderr, "dbwrap_store_int32 failed: %s\n",
     141             :                         nt_errstr(status));
     142           0 :                 goto fail;
     143             :         }
     144             : 
     145           1 :         if (!tevent_req_poll(req, ev)) {
     146           0 :                 fprintf(stderr, "tevent_req_poll failed\n");
     147           0 :                 goto fail;
     148             :         }
     149             : 
     150           1 :         status = dbwrap_watched_watch_recv(req, NULL, NULL, NULL);
     151           1 :         if (!NT_STATUS_IS_OK(status)) {
     152           0 :                 fprintf(stderr, "dbwrap_record_watch_recv failed: %s\n",
     153             :                         nt_errstr(status));
     154           0 :                 goto fail;
     155             :         }
     156             : 
     157           1 :         (void)unlink("test_watch.tdb");
     158           1 :         ret = true;
     159           1 : fail:
     160           1 :         TALLOC_FREE(req);
     161           1 :         TALLOC_FREE(rec);
     162           1 :         TALLOC_FREE(db);
     163           1 :         TALLOC_FREE(msg);
     164           1 :         TALLOC_FREE(ev);
     165           1 :         return ret;
     166             : }
     167             : 
     168             : /*
     169             :  * Make sure dbwrap_parse_record does not return NT_STATUS_OK on
     170             :  * invalid data
     171             :  */
     172             : 
     173           1 : bool run_dbwrap_watch2(int dummy)
     174             : {
     175           1 :         struct tevent_context *ev = NULL;
     176           1 :         struct messaging_context *msg = NULL;
     177           1 :         struct db_context *backend = NULL;
     178           1 :         struct db_context *db = NULL;
     179           1 :         const char *keystr = "key";
     180           1 :         TDB_DATA key = string_term_tdb_data(keystr);
     181           1 :         NTSTATUS status;
     182           1 :         bool ret = false;
     183             : 
     184           1 :         ret = test_dbwrap_watch_init(
     185             :                 talloc_tos(), "test_watch.tdb", &ev, &msg, &backend, &db);
     186           1 :         if (!ret) {
     187           0 :                 goto fail;
     188             :         }
     189             : 
     190             :         /*
     191             :          * Store invalid data (from the dbwrap_watch point of view)
     192             :          * directly into the backend database
     193             :          */
     194           1 :         status = dbwrap_store_uint32_bystring(backend, keystr, UINT32_MAX);
     195           1 :         if (!NT_STATUS_IS_OK(status)) {
     196           0 :                 fprintf(stderr, "dbwrap_store_uint32_bystring failed: %s\n",
     197             :                         nt_errstr(status));
     198           0 :                 goto fail;
     199             :         }
     200             : 
     201           1 :         status = dbwrap_parse_record(db, key, NULL, NULL);
     202           1 :         if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
     203           0 :                 fprintf(stderr, "dbwrap_parse_record returned %s, expected "
     204             :                         "NT_STATUS_NOT_FOUND\n", nt_errstr(status));
     205           0 :                 goto fail;
     206             :         }
     207             : 
     208           1 :         (void)unlink("test_watch.tdb");
     209           1 :         ret = true;
     210           1 : fail:
     211           1 :         TALLOC_FREE(db);
     212           1 :         TALLOC_FREE(msg);
     213           1 :         TALLOC_FREE(ev);
     214           1 :         return ret;
     215             : }
     216             : 
     217             : /*
     218             :  * Test autocleanup of dead watchers
     219             :  */
     220             : 
     221           1 : bool run_dbwrap_watch3(int dummy)
     222             : {
     223           1 :         struct tevent_context *ev = NULL;
     224           1 :         struct messaging_context *msg = NULL;
     225           1 :         struct db_context *backend = NULL;
     226           1 :         struct db_context *db = NULL;
     227           1 :         const char *keystr = "key";
     228           1 :         TDB_DATA key = string_term_tdb_data(keystr);
     229           1 :         NTSTATUS status;
     230           1 :         bool ret = false;
     231           1 :         pid_t child, waited;
     232           1 :         int wstatus, exit_status;
     233             : 
     234           1 :         BlockSignals(true, SIGCHLD);
     235             : 
     236           1 :         child = fork();
     237           2 :         if (child == -1) {
     238           0 :                 fprintf(stderr,
     239             :                         "fork failed: %s\n",
     240           0 :                         strerror(errno));
     241           0 :                 goto fail;
     242             :         }
     243             : 
     244           2 :         ret = test_dbwrap_watch_init(
     245             :                 talloc_tos(), "test_watch.tdb", &ev, &msg, &backend, &db);
     246           2 :         if (!ret) {
     247           0 :                 goto fail;
     248             :         }
     249             : 
     250           2 :         if (child == 0) {
     251           1 :                 struct db_record *rec = dbwrap_fetch_locked(db, db, key);
     252           1 :                 struct tevent_req *req = NULL;
     253             : 
     254           1 :                 if (rec == NULL) {
     255           0 :                         fprintf(stderr, "dbwrap_fetch_locked failed\n");
     256           0 :                         exit(1);
     257             :                 }
     258             : 
     259           2 :                 req = dbwrap_watched_watch_send(
     260           1 :                         db, ev, rec, 0, (struct server_id) { 0 });
     261           1 :                 if (req == NULL) {
     262           0 :                         fprintf(stderr, "dbwrap_watched_watch_send failed\n");
     263           0 :                         exit(2);
     264             :                 }
     265             : 
     266           1 :                 exit(0);
     267             :         }
     268             : 
     269           1 :         waited = waitpid(child, &wstatus, 0);
     270           1 :         if (waited == -1) {
     271           0 :                 fprintf(stderr, "waitpid failed: %s\n", strerror(errno));
     272           0 :                 goto fail;
     273             :         }
     274           1 :         if (!WIFEXITED(wstatus)) {
     275           0 :                 fprintf(stderr, "child did not exit normally\n");
     276           0 :                 goto fail;
     277             :         }
     278             : 
     279           1 :         exit_status = WEXITSTATUS(wstatus);
     280           1 :         if (exit_status != 0) {
     281           0 :                 fprintf(stderr, "exit status is %d\n", exit_status);
     282           0 :                 goto fail;
     283             :         }
     284             : 
     285           1 :         status = dbwrap_store_uint32_bystring(db, keystr, 1);
     286           1 :         if (!NT_STATUS_EQUAL(status, NT_STATUS_OK)) {
     287           0 :                 fprintf(stderr,
     288             :                         "dbwrap_store_uint32 returned %s\n",
     289             :                         nt_errstr(status));
     290           0 :                 goto fail;
     291             :         }
     292             : 
     293           1 :         (void)unlink("test_watch.tdb");
     294           1 :         ret = true;
     295           1 : fail:
     296           1 :         TALLOC_FREE(db);
     297           1 :         TALLOC_FREE(msg);
     298           1 :         TALLOC_FREE(ev);
     299           1 :         return ret;
     300             : }
     301             : 
     302             : /*
     303             :  * Test that we can't add two watchers in the same
     304             :  * fetch_lock/do_locked round
     305             :  */
     306             : 
     307             : struct dbwrap_watch4_state {
     308             :         TALLOC_CTX *mem_ctx;
     309             :         struct tevent_context *ev;
     310             :         struct db_context *db;
     311             :         TDB_DATA key;
     312             : 
     313             :         NTSTATUS status;
     314             : 
     315             :         struct tevent_req *req1;
     316             :         NTSTATUS status1;
     317             : 
     318             :         struct tevent_req *req2;
     319             :         NTSTATUS status2;
     320             : };
     321             : 
     322             : static void dbwrap_watch4_done1(struct tevent_req *subreq);
     323             : static void dbwrap_watch4_done2(struct tevent_req *subreq);
     324             : 
     325           1 : static void dbwrap_watch4_fn(struct db_record *rec,
     326             :                              TDB_DATA value,
     327             :                              void *private_data)
     328             : {
     329           1 :         struct dbwrap_watch4_state *state = private_data;
     330           1 :         bool ok;
     331             : 
     332           2 :         state->req1 = dbwrap_watched_watch_send(
     333           1 :                 state->mem_ctx, state->ev, rec, 0, (struct server_id) { .pid=0 });
     334           1 :         if (state->req1 == NULL) {
     335           0 :                 goto nomem;
     336             :         }
     337           1 :         tevent_req_set_callback(state->req1, dbwrap_watch4_done1, state);
     338           1 :         state->status1 = NT_STATUS_EVENT_PENDING;
     339             : 
     340           1 :         ok = tevent_req_set_endtime(
     341             :                 state->req1, state->ev, timeval_current_ofs(1, 0));
     342           1 :         if (!ok) {
     343           0 :                 goto nomem;
     344             :         }
     345             : 
     346           2 :         state->req2 = dbwrap_watched_watch_send(
     347           1 :                 state->mem_ctx, state->ev, rec, 0, (struct server_id) { .pid=0 });
     348           1 :         if (state->req2 == NULL) {
     349           0 :                 goto nomem;
     350             :         }
     351           1 :         tevent_req_set_callback(state->req2, dbwrap_watch4_done2, state);
     352           1 :         state->status2 = NT_STATUS_EVENT_PENDING;
     353             : 
     354           1 :         ok = tevent_req_set_endtime(
     355             :                 state->req2, state->ev, timeval_current_ofs(1, 0));
     356           1 :         if (!ok) {
     357           0 :                 goto nomem;
     358             :         }
     359             : 
     360           1 :         state->status = NT_STATUS_OK;
     361           1 :         return;
     362             : 
     363           0 :         nomem:
     364           0 :         state->status = NT_STATUS_NO_MEMORY;
     365             : }
     366             : 
     367           1 : static void dbwrap_watch4_done1(struct tevent_req *subreq)
     368             : {
     369           1 :         struct dbwrap_watch4_state *state = tevent_req_callback_data_void(subreq);
     370           1 :         state->status1 = dbwrap_watched_watch_recv(subreq, NULL, NULL, NULL);
     371           1 :         TALLOC_FREE(subreq);
     372           1 :         printf("req1 finished: %s\n", nt_errstr(state->status1));
     373           1 :         state->req1 = NULL;
     374           1 : }
     375             : 
     376           1 : static void dbwrap_watch4_done2(struct tevent_req *subreq)
     377             : {
     378           1 :         struct dbwrap_watch4_state *state = tevent_req_callback_data_void(subreq);
     379           1 :         state->status2 = dbwrap_watched_watch_recv(subreq, NULL, NULL, NULL);
     380           1 :         TALLOC_FREE(subreq);
     381           1 :         printf("req2 finished: %s\n", nt_errstr(state->status2));
     382           1 :         state->req2 = NULL;
     383           1 : }
     384             : 
     385           1 : bool run_dbwrap_watch4(int dummy)
     386             : {
     387           1 :         struct tevent_context *ev = NULL;
     388           1 :         struct messaging_context *msg = NULL;
     389           1 :         struct db_context *backend = NULL;
     390           1 :         struct db_context *db = NULL;
     391           1 :         const char *keystr = "key";
     392           1 :         TDB_DATA key = string_term_tdb_data(keystr);
     393           1 :         struct dbwrap_watch4_state state = { 0 };
     394           1 :         NTSTATUS status;
     395           1 :         bool ret = false;
     396           1 :         bool ok;
     397             : 
     398           1 :         ok = test_dbwrap_watch_init(
     399             :                 talloc_tos(), "test_watch.tdb", &ev, &msg, &backend, &db);
     400           1 :         if (!ok) {
     401           0 :                 goto fail;
     402             :         }
     403             : 
     404           2 :         state = (struct dbwrap_watch4_state) {
     405           1 :                 .mem_ctx = talloc_tos(),
     406             :                 .ev = ev,
     407             :                 .db = db,
     408             :                 .key = key,
     409             :         };
     410             : 
     411           1 :         status = dbwrap_do_locked(db, key, dbwrap_watch4_fn, &state);
     412           1 :         if (!NT_STATUS_IS_OK(status)) {
     413           0 :                 fprintf(stderr,
     414             :                         "dbwrap_do_locked failed: %s\n",
     415             :                         nt_errstr(status));
     416           0 :                 goto fail;
     417             :         }
     418           1 :         if (!NT_STATUS_IS_OK(state.status)) {
     419           0 :                 fprintf(stderr,
     420             :                         "dbwrap_watch4_fn failed: %s\n",
     421             :                         nt_errstr(status));
     422           0 :                 goto fail;
     423             :         }
     424             : 
     425           1 :         status = dbwrap_store(db, key, key, 0);
     426           1 :         if (!NT_STATUS_IS_OK(status)) {
     427           0 :                 fprintf(stderr,
     428             :                         "dbwrap_store failed: %s\n",
     429             :                         nt_errstr(status));
     430           0 :                 goto fail;
     431             :         }
     432             : 
     433           4 :         while (NT_STATUS_EQUAL(state.status1, NT_STATUS_EVENT_PENDING) ||
     434           1 :                NT_STATUS_EQUAL(state.status2, NT_STATUS_EVENT_PENDING)) {
     435           3 :                 int res = tevent_loop_once(ev);
     436           3 :                 if (res != 0) {
     437           0 :                         fprintf(stderr,
     438             :                                 "tevent_loop_once failed: %s\n",
     439           0 :                                 strerror(errno));
     440           0 :                         goto fail;
     441             :                 }
     442             :         }
     443             : 
     444           1 :         if (!NT_STATUS_IS_OK(state.status1)) {
     445           0 :                 fprintf(stderr,
     446             :                         "req1 returned %s\n",
     447             :                         nt_errstr(state.status1));
     448           0 :                 goto fail;
     449             :         }
     450             : 
     451           1 :         if (!NT_STATUS_EQUAL(state.status2, NT_STATUS_REQUEST_NOT_ACCEPTED)) {
     452           0 :                 fprintf(stderr,
     453             :                         "req2 returned %s\n",
     454             :                         nt_errstr(state.status2));
     455           0 :                 goto fail;
     456             :         }
     457             : 
     458           1 :         (void)unlink("test_watch.tdb");
     459           1 :         ret = true;
     460           1 : fail:
     461           1 :         TALLOC_FREE(state.req2);
     462           1 :         TALLOC_FREE(state.req1);
     463           1 :         TALLOC_FREE(db);
     464           1 :         TALLOC_FREE(msg);
     465           1 :         TALLOC_FREE(ev);
     466           1 :         return ret;
     467             : }

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