1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
|
/* Copyright (C) 2013, 2015, Alexey Botchkov and SkySQL Ab
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
#define PLUGIN_VERSION 0x104
#define PLUGIN_STR_VERSION "1.4.7"
#define _my_thread_var loc_thread_var
#include <my_config.h>
#include <assert.h>
#ifndef _WIN32
#include <syslog.h>
#else
#define syslog(PRIORITY, FORMAT, INFO, MESSAGE_LEN, MESSAGE) do {}while(0)
static void closelog() {}
#define openlog(IDENT, LOG_NOWAIT, LOG_USER) do {}while(0)
/* priorities */
#define LOG_EMERG 0 /* system is unusable */
#define LOG_ALERT 1 /* action must be taken immediately */
#define LOG_CRIT 2 /* critical conditions */
#define LOG_ERR 3 /* error conditions */
#define LOG_WARNING 4 /* warning conditions */
#define LOG_NOTICE 5 /* normal but significant condition */
#define LOG_INFO 6 /* informational */
#define LOG_DEBUG 7 /* debug-level messages */
#define LOG_MAKEPRI(fac, pri) (((fac) << 3) | (pri))
/* facility codes */
#define LOG_KERN (0<<3) /* kernel messages */
#define LOG_USER (1<<3) /* random user-level messages */
#define LOG_MAIL (2<<3) /* mail system */
#define LOG_DAEMON (3<<3) /* system daemons */
#define LOG_AUTH (4<<3) /* security/authorization messages */
#define LOG_SYSLOG (5<<3) /* messages generated internally by syslogd */
#define LOG_LPR (6<<3) /* line printer subsystem */
#define LOG_NEWS (7<<3) /* network news subsystem */
#define LOG_UUCP (8<<3) /* UUCP subsystem */
#define LOG_CRON (9<<3) /* clock daemon */
#define LOG_AUTHPRIV (10<<3) /* security/authorization messages (private) */
#define LOG_FTP (11<<3) /* ftp daemon */
#define LOG_LOCAL0 (16<<3) /* reserved for local use */
#define LOG_LOCAL1 (17<<3) /* reserved for local use */
#define LOG_LOCAL2 (18<<3) /* reserved for local use */
#define LOG_LOCAL3 (19<<3) /* reserved for local use */
#define LOG_LOCAL4 (20<<3) /* reserved for local use */
#define LOG_LOCAL5 (21<<3) /* reserved for local use */
#define LOG_LOCAL6 (22<<3) /* reserved for local use */
#define LOG_LOCAL7 (23<<3) /* reserved for local use */
#endif /*!_WIN32*/
/*
Defines that can be used to reshape the pluging:
#define MARIADB_ONLY
#define USE_MARIA_PLUGIN_INTERFACE
*/
#if !defined(MYSQL_DYNAMIC_PLUGIN) && !defined(MARIADB_ONLY)
#include <typelib.h>
#define MARIADB_ONLY
#endif /*MYSQL_PLUGIN_DYNAMIC*/
#ifndef MARIADB_ONLY
#define MYSQL_SERVICE_LOGGER_INCLUDED
#endif /*MARIADB_ONLY*/
#include <my_global.h>
#include <my_base.h>
#include <typelib.h>
#include <mysql/plugin.h>
#include <mysql/plugin_audit.h>
#include <string.h>
#ifndef RTLD_DEFAULT
#define RTLD_DEFAULT NULL
#endif
#ifndef MARIADB_ONLY
#undef MYSQL_SERVICE_LOGGER_INCLUDED
#undef MYSQL_DYNAMIC_PLUGIN
#define FLOGGER_NO_PSI
/* How to access the pthread_mutex in mysql_mutex_t */
#ifdef SAFE_MUTEX
#define mysql_mutex_real_mutex(A) &(A)->m_mutex.mutex
#else
#define mysql_mutex_real_mutex(A) &(A)->m_mutex
#endif
#define flogger_mutex_init(A,B,C) do{}while(0)
#define flogger_mutex_destroy(A) do{}while(0)
#define flogger_mutex_lock(A) do{}while(0)
#define flogger_mutex_unlock(A) do{}while(0)
static char **int_mysql_data_home;
static char *default_home= (char *)".";
#define mysql_data_home (*int_mysql_data_home)
#define FLOGGER_SKIP_INCLUDES
#define my_open(A, B, C) loc_open(A, B)
#define my_close(A, B) loc_close(A)
#define my_rename(A, B, C) loc_rename(A, B)
#define my_tell(A, B) loc_tell(A)
#define my_write(A, B, C, D) loc_write(A, B, C)
#define my_malloc(A, B) malloc(A)
#define my_free(A) free(A)
#ifdef my_errno
#undef my_errno
#endif
static int loc_file_errno;
#define my_errno loc_file_errno
#ifdef my_vsnprintf
#undef my_vsnprintf
#endif
#define my_vsnprintf vsnprintf
#define logger_open loc_logger_open
#define logger_close loc_logger_close
#define logger_write loc_logger_write
#define logger_rotate loc_logger_rotate
#define logger_init_mutexts loc_logger_init_mutexts
static size_t loc_write(File Filedes, const uchar *Buffer, size_t Count)
{
size_t writtenbytes;
#ifdef _WIN32
writtenbytes= (size_t)_write(Filedes, Buffer, (unsigned int)Count);
#else
writtenbytes= write(Filedes, Buffer, Count);
#endif
return writtenbytes;
}
static File loc_open(const char *FileName, int Flags)
/* Path-name of file */
/* Read | write .. */
/* Special flags */
{
File fd;
#ifdef _WIN32
HANDLE h;
/*
We could just use _open() here. but prefer to open in unix-similar way
just like my_open() does it on Windows.
This gives atomic multiprocess-safe appends, and possibility to rename
or even delete file while it is open, and CRT lacks this features.
*/
assert(Flags == (O_APPEND | O_CREAT | O_WRONLY));
h= CreateFile(FileName, FILE_APPEND_DATA,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, NULL,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE)
{
fd= -1;
my_osmaperr(GetLastError());
}
else
{
fd= _open_osfhandle((intptr)h, O_WRONLY|O_BINARY);
}
#else
fd= open(FileName, Flags, my_umask);
#endif
my_errno= errno;
return fd;
}
static int loc_close(File fd)
{
int err;
#ifndef _WIN32
do
{
err= close(fd);
} while (err == -1 && errno == EINTR);
#else
err= close(fd);
#endif
my_errno=errno;
return err;
}
static int loc_rename(const char *from, const char *to)
{
int error = 0;
#if defined(__WIN__)
if (!MoveFileEx(from, to, MOVEFILE_COPY_ALLOWED |
MOVEFILE_REPLACE_EXISTING))
{
my_osmaperr(GetLastError());
#elif defined(HAVE_RENAME)
if (rename(from,to))
{
#else
if (link(from, to) || unlink(from))
{
#endif
my_errno=errno;
error = -1;
}
return error;
}
static my_off_t loc_tell(File fd)
{
os_off_t pos= IF_WIN(_telli64(fd),lseek(fd, 0, SEEK_CUR));
if (pos == (os_off_t) -1)
{
my_errno= errno;
}
return (my_off_t) pos;
}
#ifdef HAVE_PSI_INTERFACE
#undef HAVE_PSI_INTERFACE
#include <mysql/service_logger.h>
#include "../../mysys/file_logger.c"
#define HAVE_PSI_INTERFACE
#else
#include <mysql/service_logger.h>
#include "../../mysys/file_logger.c"
#endif
#endif /*!MARIADB_ONLY*/
#undef flogger_mutex_init
#undef flogger_mutex_destroy
#undef flogger_mutex_lock
#undef flogger_mutex_unlock
#define flogger_mutex_init(A,B,C) pthread_mutex_init(mysql_mutex_real_mutex(B), C)
#define flogger_mutex_destroy(A) pthread_mutex_destroy(mysql_mutex_real_mutex(A))
#define flogger_mutex_lock(A) pthread_mutex_lock(mysql_mutex_real_mutex(A))
#define flogger_mutex_unlock(A) pthread_mutex_unlock(mysql_mutex_real_mutex(A))
#ifndef DBUG_OFF
#define PLUGIN_DEBUG_VERSION "-debug"
#else
#define PLUGIN_DEBUG_VERSION ""
#endif /*DBUG_OFF*/
/*
Disable __attribute__() on non-gcc compilers.
*/
#if !defined(__attribute__) && !defined(__GNUC__)
#define __attribute__(A)
#endif
#ifdef _WIN32
#define localtime_r(a, b) localtime_s(b, a)
#endif /*WIN32*/
extern char server_version[];
static const char *serv_ver= NULL;
static int started_mysql= 0;
static int mysql_57_started= 0;
static int debug_server_started= 0;
static int use_event_data_for_disconnect= 0;
static int started_mariadb= 0;
static int maria_55_started= 0;
static int maria_above_5= 0;
static char *incl_users, *excl_users,
*file_path, *syslog_info;
static char path_buffer[FN_REFLEN];
static unsigned int mode, mode_readonly= 0;
static ulong output_type;
static ulong syslog_facility, syslog_priority;
static ulonglong events; /* mask for events to log */
static unsigned long long file_rotate_size;
static unsigned int rotations;
static my_bool rotate= TRUE;
static char logging;
static volatile int internal_stop_logging= 0;
static char incl_user_buffer[1024];
static char excl_user_buffer[1024];
static char *big_buffer= NULL;
static size_t big_buffer_alloced= 0;
static unsigned int query_log_limit= 0;
static char servhost[256];
static uint servhost_len;
static char *syslog_ident;
static char syslog_ident_buffer[128]= "mysql-server_auditing";
struct connection_info
{
int header;
unsigned long thread_id;
unsigned long long query_id;
char db[256];
int db_length;
char user[64];
int user_length;
char host[64];
int host_length;
char ip[64];
int ip_length;
const char *query;
int query_length;
char query_buffer[1024];
time_t query_time;
int log_always;
};
#define DEFAULT_FILENAME_LEN 16
static char default_file_name[DEFAULT_FILENAME_LEN+1]= "server_audit.log";
static void update_file_path(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_file_rotate_size(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_file_rotations(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_incl_users(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static int check_incl_users(MYSQL_THD thd, struct st_mysql_sys_var *var, void *save,
struct st_mysql_value *value);
static int check_excl_users(MYSQL_THD thd, struct st_mysql_sys_var *var, void *save,
struct st_mysql_value *value);
static void update_excl_users(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_output_type(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_syslog_facility(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_syslog_priority(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_mode(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_logging(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void update_syslog_ident(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static void rotate_log(MYSQL_THD thd, struct st_mysql_sys_var *var,
void *var_ptr, const void *save);
static MYSQL_SYSVAR_STR(incl_users, incl_users, PLUGIN_VAR_RQCMDARG,
"Comma separated list of users to monitor.",
check_incl_users, update_incl_users, NULL);
static MYSQL_SYSVAR_STR(excl_users, excl_users, PLUGIN_VAR_RQCMDARG,
"Comma separated list of users to exclude from auditing.",
check_excl_users, update_excl_users, NULL);
/* bits in the event filter. */
#define EVENT_CONNECT 1
#define EVENT_QUERY_ALL 2
#define EVENT_QUERY 122
#define EVENT_TABLE 4
#define EVENT_QUERY_DDL 8
#define EVENT_QUERY_DML 16
#define EVENT_QUERY_DCL 32
#define EVENT_QUERY_DML_NO_SELECT 64
static const char *event_names[]=
{
"CONNECT", "QUERY", "TABLE", "QUERY_DDL", "QUERY_DML", "QUERY_DCL",
"QUERY_DML_NO_SELECT", NULL
};
static TYPELIB events_typelib=
{
array_elements(event_names) - 1, "", event_names, NULL
};
static MYSQL_SYSVAR_SET(events, events, PLUGIN_VAR_RQCMDARG,
"Specifies the set of events to monitor. Can be CONNECT, QUERY, TABLE,"
" QUERY_DDL, QUERY_DML, QUERY_DML_NO_SELECT, QUERY_DCL.",
NULL, NULL, 0, &events_typelib);
#define OUTPUT_SYSLOG 0
#define OUTPUT_FILE 1
#define OUTPUT_NO 0xFFFF
static const char *output_type_names[]= { "syslog", "file", 0 };
static TYPELIB output_typelib=
{
array_elements(output_type_names) - 1, "output_typelib",
output_type_names, NULL
};
static MYSQL_SYSVAR_ENUM(output_type, output_type, PLUGIN_VAR_RQCMDARG,
"Desired output type. Possible values - 'syslog', 'file'"
" or 'null' as no output.", 0, update_output_type, OUTPUT_FILE,
&output_typelib);
static MYSQL_SYSVAR_STR(file_path, file_path, PLUGIN_VAR_RQCMDARG,
"Path to the log file.", NULL, update_file_path, default_file_name);
static MYSQL_SYSVAR_ULONGLONG(file_rotate_size, file_rotate_size,
PLUGIN_VAR_RQCMDARG, "Maximum size of the log to start the rotation.",
NULL, update_file_rotate_size,
1000000, 100, ((long long) 0x7FFFFFFFFFFFFFFFLL), 1);
static MYSQL_SYSVAR_UINT(file_rotations, rotations,
PLUGIN_VAR_RQCMDARG, "Number of rotations before log is removed.",
NULL, update_file_rotations, 9, 0, 999, 1);
static MYSQL_SYSVAR_BOOL(file_rotate_now, rotate, PLUGIN_VAR_OPCMDARG,
"Force log rotation now.", NULL, rotate_log, FALSE);
static MYSQL_SYSVAR_BOOL(logging, logging,
PLUGIN_VAR_OPCMDARG, "Turn on/off the logging.", NULL,
update_logging, 0);
static MYSQL_SYSVAR_UINT(mode, mode,
PLUGIN_VAR_OPCMDARG, "Auditing mode.", NULL, update_mode, 0, 0, 1, 1);
static MYSQL_SYSVAR_STR(syslog_ident, syslog_ident, PLUGIN_VAR_RQCMDARG,
"The SYSLOG identifier - the beginning of each SYSLOG record.",
NULL, update_syslog_ident, syslog_ident_buffer);
static MYSQL_SYSVAR_STR(syslog_info, syslog_info,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
"The <info> string to be added to the SYSLOG record.", NULL, NULL, "");
static MYSQL_SYSVAR_UINT(query_log_limit, query_log_limit,
PLUGIN_VAR_OPCMDARG, "Limit on the length of the query string in a record.",
NULL, NULL, 1024, 0, 0x7FFFFFFF, 1);
char locinfo_ini_value[sizeof(struct connection_info)+4];
static MYSQL_THDVAR_STR(loc_info,
PLUGIN_VAR_NOSYSVAR | PLUGIN_VAR_NOCMDOPT | PLUGIN_VAR_MEMALLOC,
"Internal info", NULL, NULL, locinfo_ini_value);
static const char *syslog_facility_names[]=
{
"LOG_USER", "LOG_MAIL", "LOG_DAEMON", "LOG_AUTH",
"LOG_SYSLOG", "LOG_LPR", "LOG_NEWS", "LOG_UUCP",
"LOG_CRON",
#ifdef LOG_AUTHPRIV
"LOG_AUTHPRIV",
#endif
#ifdef LOG_FTP
"LOG_FTP",
#endif
"LOG_LOCAL0", "LOG_LOCAL1", "LOG_LOCAL2", "LOG_LOCAL3",
"LOG_LOCAL4", "LOG_LOCAL5", "LOG_LOCAL6", "LOG_LOCAL7",
0
};
#ifndef _WIN32
static unsigned int syslog_facility_codes[]=
{
LOG_USER, LOG_MAIL, LOG_DAEMON, LOG_AUTH,
LOG_SYSLOG, LOG_LPR, LOG_NEWS, LOG_UUCP,
LOG_CRON,
#ifdef LOG_AUTHPRIV
LOG_AUTHPRIV,
#endif
#ifdef LOG_FTP
LOG_FTP,
#endif
LOG_LOCAL0, LOG_LOCAL1, LOG_LOCAL2, LOG_LOCAL3,
LOG_LOCAL4, LOG_LOCAL5, LOG_LOCAL6, LOG_LOCAL7,
};
#endif
static TYPELIB syslog_facility_typelib=
{
array_elements(syslog_facility_names) - 1, "syslog_facility_typelib",
syslog_facility_names, NULL
};
static MYSQL_SYSVAR_ENUM(syslog_facility, syslog_facility, PLUGIN_VAR_RQCMDARG,
"The 'facility' parameter of the SYSLOG record."
" The default is LOG_USER.", 0, update_syslog_facility, 0/*LOG_USER*/,
&syslog_facility_typelib);
static const char *syslog_priority_names[]=
{
"LOG_EMERG", "LOG_ALERT", "LOG_CRIT", "LOG_ERR",
"LOG_WARNING", "LOG_NOTICE", "LOG_INFO", "LOG_DEBUG",
0
};
#ifndef _WIN32
static unsigned int syslog_priority_codes[]=
{
LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR,
LOG_WARNING, LOG_NOTICE, LOG_INFO, LOG_DEBUG,
};
#endif
static TYPELIB syslog_priority_typelib=
{
array_elements(syslog_priority_names) - 1, "syslog_priority_typelib",
syslog_priority_names, NULL
};
static MYSQL_SYSVAR_ENUM(syslog_priority, syslog_priority, PLUGIN_VAR_RQCMDARG,
"The 'priority' parameter of the SYSLOG record."
" The default is LOG_INFO.", 0, update_syslog_priority, 6/*LOG_INFO*/,
&syslog_priority_typelib);
static struct st_mysql_sys_var* vars[] = {
MYSQL_SYSVAR(incl_users),
MYSQL_SYSVAR(excl_users),
MYSQL_SYSVAR(events),
MYSQL_SYSVAR(output_type),
MYSQL_SYSVAR(file_path),
MYSQL_SYSVAR(file_rotate_size),
MYSQL_SYSVAR(file_rotations),
MYSQL_SYSVAR(file_rotate_now),
MYSQL_SYSVAR(logging),
MYSQL_SYSVAR(mode),
MYSQL_SYSVAR(syslog_info),
MYSQL_SYSVAR(syslog_ident),
MYSQL_SYSVAR(syslog_facility),
MYSQL_SYSVAR(syslog_priority),
MYSQL_SYSVAR(query_log_limit),
MYSQL_SYSVAR(loc_info),
NULL
};
/* Status variables for SHOW STATUS */
static int is_active= 0;
static long log_write_failures= 0;
static char current_log_buf[FN_REFLEN]= "";
static char last_error_buf[512]= "";
extern void *mysql_v4_descriptor;
static struct st_mysql_show_var audit_status[]=
{
{"server_audit_active", (char *)&is_active, SHOW_BOOL},
{"server_audit_current_log", current_log_buf, SHOW_CHAR},
{"server_audit_writes_failed", (char *)&log_write_failures, SHOW_LONG},
{"server_audit_last_error", last_error_buf, SHOW_CHAR},
{0,0,0}
};
#if defined(HAVE_PSI_INTERFACE) && !defined(FLOGGER_NO_PSI)
/* These belong to the service initialization */
static PSI_mutex_key key_LOCK_operations;
static PSI_mutex_key key_LOCK_atomic;
static PSI_mutex_key key_LOCK_bigbuffer;
static PSI_mutex_info mutex_key_list[]=
{
{ &key_LOCK_operations, "SERVER_AUDIT_plugin::lock_operations",
PSI_FLAG_GLOBAL},
{ &key_LOCK_atomic, "SERVER_AUDIT_plugin::lock_atomic",
PSI_FLAG_GLOBAL},
{ &key_LOCK_bigbuffer, "SERVER_AUDIT_plugin::lock_bigbuffer",
PSI_FLAG_GLOBAL}
};
#endif
static mysql_mutex_t lock_operations;
static mysql_mutex_t lock_atomic;
static mysql_mutex_t lock_bigbuffer;
/* The Percona server and partly MySQL don't support */
/* launching client errors in the 'update_variable' methods. */
/* So the client errors just disabled for them. */
/* The possible solution is to implement the 'check_variable'*/
/* methods there properly, but at the moment i'm not sure it */
/* worths doing. */
#define CLIENT_ERROR if (!started_mysql) my_printf_error
#define ADD_ATOMIC(x, a) \
do { \
flogger_mutex_lock(&lock_atomic); \
x+= a; \
flogger_mutex_unlock(&lock_atomic); \
} while (0)
static uchar *getkey_user(const char *entry, size_t *length,
my_bool nu __attribute__((unused)) )
{
const char *e= entry;
while (*e && *e != ' ' && *e != ',')
++e;
*length= e - entry;
return (uchar *) entry;
}
static void blank_user(char *user)
{
for (; *user && *user != ','; user++)
*user= ' ';
}
static void remove_user(char *user)
{
char *start_user= user;
while (*user != ',')
{
if (*user == 0)
{
*start_user= 0;
return;
}
user++;
}
user++;
while (*user == ' ')
user++;
do {
*(start_user++)= *user;
} while (*(user++));
}
static void remove_blanks(char *user)
{
char *user_orig= user;
char *user_to= user;
char *start_tok;
int blank_name;
while (*user != 0)
{
start_tok= user;
blank_name= 1;
while (*user !=0 && *user != ',')
{
if (*user != ' ')
blank_name= 0;
user++;
}
if (!blank_name)
{
while (start_tok <= user)
*(user_to++)= *(start_tok++);
}
if (*user == ',')
user++;
}
if (user_to > user_orig && user_to[-1] == ',')
user_to--;
*user_to= 0;
}
struct user_name
{
size_t name_len;
char *name;
};
struct user_coll
{
int n_users;
struct user_name *users;
int n_alloced;
};
static void coll_init(struct user_coll *c)
{
c->n_users= 0;
c->users= 0;
c->n_alloced= 0;
}
static void coll_free(struct user_coll *c)
{
if (c->users)
{
free(c->users);
coll_init(c);
}
}
static int cmp_users(const void *ia, const void *ib)
{
const struct user_name *a= (const struct user_name *) ia;
const struct user_name *b= (const struct user_name *) ib;
int dl= (int)(a->name_len - b->name_len);
if (dl != 0)
return dl;
return strncmp(a->name, b->name, a->name_len);
}
static char *coll_search(struct user_coll *c, const char *n, size_t len)
{
struct user_name un;
struct user_name *found;
un.name_len= len;
un.name= (char *) n;
found= (struct user_name*) bsearch(&un, c->users, c->n_users,
sizeof(c->users[0]), cmp_users);
return found ? found->name : 0;
}
static int coll_insert(struct user_coll *c, char *n, size_t len)
{
if (c->n_users >= c->n_alloced)
{
c->n_alloced+= 128;
if (c->users == NULL)
c->users= malloc(c->n_alloced * sizeof(c->users[0]));
else
c->users= realloc(c->users, c->n_alloced * sizeof(c->users[0]));
if (c->users == NULL)
return 1;
}
c->users[c->n_users].name= n;
c->users[c->n_users].name_len= len;
c->n_users++;
return 0;
}
static void coll_sort(struct user_coll *c)
{
qsort(c->users, c->n_users, sizeof(c->users[0]), cmp_users);
}
static int user_coll_fill(struct user_coll *c, char *users,
struct user_coll *cmp_c, int take_over_cmp)
{
char *orig_users= users;
char *cmp_user= 0;
size_t cmp_length;
int refill_cmp_coll= 0;
c->n_users= 0;
while (*users)
{
while (*users == ' ')
users++;
if (!*users)
return 0;
(void) getkey_user(users, &cmp_length, FALSE);
if (cmp_c)
{
cmp_user= coll_search(cmp_c, users, cmp_length);
if (cmp_user && take_over_cmp)
{
ADD_ATOMIC(internal_stop_logging, 1);
CLIENT_ERROR(1, "User '%.*s' was removed from the"
" server_audit_excl_users.",
MYF(ME_JUST_WARNING), (int) cmp_length, users);
ADD_ATOMIC(internal_stop_logging, -1);
blank_user(cmp_user);
refill_cmp_coll= 1;
}
else if (cmp_user)
{
ADD_ATOMIC(internal_stop_logging, 1);
CLIENT_ERROR(1, "User '%.*s' is in the server_audit_incl_users, "
"so wasn't added.", MYF(ME_JUST_WARNING), (int) cmp_length, users);
ADD_ATOMIC(internal_stop_logging, -1);
remove_user(users);
continue;
}
}
if (coll_insert(c, users, cmp_length))
return 1;
while (*users && *users != ',')
users++;
if (!*users)
break;
users++;
}
if (refill_cmp_coll)
{
remove_blanks(excl_users);
return user_coll_fill(cmp_c, excl_users, 0, 0);
}
if (users > orig_users && users[-1] == ',')
users[-1]= 0;
coll_sort(c);
return 0;
}
enum sa_keywords
{
SQLCOM_NOTHING=0,
SQLCOM_DDL,
SQLCOM_DML,
SQLCOM_GRANT,
SQLCOM_CREATE_USER,
SQLCOM_CHANGE_MASTER,
SQLCOM_CREATE_SERVER,
SQLCOM_SET_OPTION,
SQLCOM_ALTER_SERVER,
SQLCOM_TRUNCATE,
SQLCOM_QUERY_ADMIN,
SQLCOM_DCL,
};
struct sa_keyword
{
int length;
const char *wd;
struct sa_keyword *next;
enum sa_keywords type;
};
struct sa_keyword xml_word= {3, "XML", 0, SQLCOM_NOTHING};
struct sa_keyword user_word= {4, "USER", 0, SQLCOM_NOTHING};
struct sa_keyword data_word= {4, "DATA", 0, SQLCOM_NOTHING};
struct sa_keyword server_word= {6, "SERVER", 0, SQLCOM_NOTHING};
struct sa_keyword master_word= {6, "MASTER", 0, SQLCOM_NOTHING};
struct sa_keyword password_word= {8, "PASSWORD", 0, SQLCOM_NOTHING};
struct sa_keyword function_word= {8, "FUNCTION", 0, SQLCOM_NOTHING};
struct sa_keyword statement_word= {9, "STATEMENT", 0, SQLCOM_NOTHING};
struct sa_keyword procedure_word= {9, "PROCEDURE", 0, SQLCOM_NOTHING};
struct sa_keyword keywords_to_skip[]=
{
{3, "SET", &statement_word, SQLCOM_QUERY_ADMIN},
{0, NULL, 0, SQLCOM_DDL}
};
struct sa_keyword not_ddl_keywords[]=
{
{4, "DROP", &function_word, SQLCOM_QUERY_ADMIN},
{4, "DROP", &procedure_word, SQLCOM_QUERY_ADMIN},
{4, "DROP", &user_word, SQLCOM_DCL},
{6, "CREATE", &user_word, SQLCOM_DCL},
{6, "CREATE", &function_word, SQLCOM_QUERY_ADMIN},
{6, "CREATE", &procedure_word, SQLCOM_QUERY_ADMIN},
{6, "RENAME", &user_word, SQLCOM_DCL},
{0, NULL, 0, SQLCOM_DDL}
};
struct sa_keyword ddl_keywords[]=
{
{4, "DROP", 0, SQLCOM_DDL},
{5, "ALTER", 0, SQLCOM_DDL},
{6, "CREATE", 0, SQLCOM_DDL},
{6, "RENAME", 0, SQLCOM_DDL},
{8, "TRUNCATE", 0, SQLCOM_DDL},
{0, NULL, 0, SQLCOM_DDL}
};
struct sa_keyword dml_keywords[]=
{
{2, "DO", 0, SQLCOM_DML},
{4, "CALL", 0, SQLCOM_DML},
{4, "LOAD", &data_word, SQLCOM_DML},
{4, "LOAD", &xml_word, SQLCOM_DML},
{6, "DELETE", 0, SQLCOM_DML},
{6, "INSERT", 0, SQLCOM_DML},
{6, "SELECT", 0, SQLCOM_DML},
{6, "UPDATE", 0, SQLCOM_DML},
{7, "HANDLER", 0, SQLCOM_DML},
{7, "REPLACE", 0, SQLCOM_DML},
{0, NULL, 0, SQLCOM_DML}
};
struct sa_keyword dml_no_select_keywords[]=
{
{2, "DO", 0, SQLCOM_DML},
{4, "CALL", 0, SQLCOM_DML},
{4, "LOAD", &data_word, SQLCOM_DML},
{4, "LOAD", &xml_word, SQLCOM_DML},
{6, "DELETE", 0, SQLCOM_DML},
{6, "INSERT", 0, SQLCOM_DML},
{6, "UPDATE", 0, SQLCOM_DML},
{7, "HANDLER", 0, SQLCOM_DML},
{7, "REPLACE", 0, SQLCOM_DML},
{0, NULL, 0, SQLCOM_DML}
};
struct sa_keyword dcl_keywords[]=
{
{6, "CREATE", &user_word, SQLCOM_DCL},
{4, "DROP", &user_word, SQLCOM_DCL},
{6, "RENAME", &user_word, SQLCOM_DCL},
{5, "GRANT", 0, SQLCOM_DCL},
{6, "REVOKE", 0, SQLCOM_DCL},
{3, "SET", &password_word, SQLCOM_DCL},
{0, NULL, 0, SQLCOM_DDL}
};
struct sa_keyword passwd_keywords[]=
{
{3, "SET", &password_word, SQLCOM_SET_OPTION},
{5, "ALTER", &server_word, SQLCOM_ALTER_SERVER},
{5, "GRANT", 0, SQLCOM_GRANT},
{6, "CREATE", &user_word, SQLCOM_CREATE_USER},
{6, "CREATE", &server_word, SQLCOM_CREATE_SERVER},
{6, "CHANGE", &master_word, SQLCOM_CHANGE_MASTER},
{0, NULL, 0, SQLCOM_NOTHING}
};
#define MAX_KEYWORD 9
static void error_header()
{
struct tm tm_time;
time_t curtime;
(void) time(&curtime);
(void) localtime_r(&curtime, &tm_time);
(void) fprintf(stderr,"%02d%02d%02d %2d:%02d:%02d server_audit: ",
tm_time.tm_year % 100, tm_time.tm_mon + 1,
tm_time.tm_mday, tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec);
}
static LOGGER_HANDLE *logfile;
static struct user_coll incl_user_coll, excl_user_coll;
static unsigned long long query_counter= 1;
static struct connection_info *get_loc_info(MYSQL_THD thd)
{
return (struct connection_info *) THDVAR(thd, loc_info);
}
static int ci_needs_setup(const struct connection_info *ci)
{
return ci->header != 0;
}
static void get_str_n(char *dest, int *dest_len, size_t dest_size,
const char *src, size_t src_len)
{
if (src_len >= dest_size)
src_len= dest_size - 1;
memcpy(dest, src, src_len);
dest[src_len]= 0;
*dest_len= (int)src_len;
}
static int get_user_host(const char *uh_line, unsigned int uh_len,
char *buffer, size_t buf_len,
size_t *user_len, size_t *host_len, size_t *ip_len)
{
const char *buf_end= buffer + buf_len - 1;
const char *buf_start;
const char *uh_end= uh_line + uh_len;
while (uh_line < uh_end && *uh_line != '[')
++uh_line;
if (uh_line == uh_end)
return 1;
++uh_line;
buf_start= buffer;
while (uh_line < uh_end && *uh_line != ']')
{
if (buffer == buf_end)
return 1;
*(buffer++)= *(uh_line++);
}
if (uh_line == uh_end)
return 1;
*user_len= buffer - buf_start;
*(buffer++)= 0;
while (uh_line < uh_end && *uh_line != '@')
++uh_line;
if (uh_line == uh_end || *(++uh_line) == 0)
return 1;
++uh_line;
buf_start= buffer;
while (uh_line < uh_end && *uh_line != ' ' && *uh_line != '[')
{
if (buffer == buf_end)
break;
*(buffer++)= *(uh_line++);
}
*host_len= buffer - buf_start;
*(buffer++)= 0;
while (uh_line < uh_end && *uh_line != '[')
++uh_line;
buf_start= buffer;
if (*uh_line == '[')
{
++uh_line;
while (uh_line < uh_end && *uh_line != ']')
*(buffer++)= *(uh_line++);
}
*ip_len= buffer - buf_start;
return 0;
}
#if defined(__WIN__) && !defined(S_ISDIR)
#define S_ISDIR(x) ((x) & _S_IFDIR)
#endif /*__WIN__ && !S_ISDIR*/
static int start_logging()
{
last_error_buf[0]= 0;
log_write_failures= 0;
if (output_type == OUTPUT_FILE)
{
char alt_path_buffer[FN_REFLEN+1+DEFAULT_FILENAME_LEN];
struct stat *f_stat= (struct stat *)alt_path_buffer;
const char *alt_fname= file_path;
while (*alt_fname == ' ')
alt_fname++;
if (*alt_fname == 0)
{
/* Empty string means the default file name. */
alt_fname= default_file_name;
}
else
{
/* See if the directory exists with the name of file_path. */
/* Log file name should be [file_path]/server_audit.log then. */
if (stat(file_path, (struct stat *)alt_path_buffer) == 0 &&
S_ISDIR(f_stat->st_mode))
{
size_t p_len= strlen(file_path);
memcpy(alt_path_buffer, file_path, p_len);
if (alt_path_buffer[p_len-1] != FN_LIBCHAR)
{
alt_path_buffer[p_len]= FN_LIBCHAR;
p_len++;
}
memcpy(alt_path_buffer+p_len, default_file_name, DEFAULT_FILENAME_LEN);
alt_path_buffer[p_len+DEFAULT_FILENAME_LEN]= 0;
alt_fname= alt_path_buffer;
}
}
logfile= logger_open(alt_fname, file_rotate_size, rotations);
if (logfile == NULL)
{
error_header();
fprintf(stderr, "Could not create file '%s'.\n",
alt_fname);
logging= 0;
my_snprintf(last_error_buf, sizeof(last_error_buf),
"Could not create file '%s'.", alt_fname);
is_active= 0;
CLIENT_ERROR(1, "SERVER AUDIT plugin can't create file '%s'.",
MYF(ME_JUST_WARNING), alt_fname);
return 1;
}
error_header();
fprintf(stderr, "logging started to the file %s.\n", alt_fname);
strncpy(current_log_buf, alt_fname, sizeof(current_log_buf)-1);
current_log_buf[sizeof(current_log_buf)-1]= 0;
}
else if (output_type == OUTPUT_SYSLOG)
{
openlog(syslog_ident, LOG_NOWAIT, syslog_facility_codes[syslog_facility]);
error_header();
fprintf(stderr, "logging started to the syslog.\n");
strncpy(current_log_buf, "[SYSLOG]", sizeof(current_log_buf)-1);
compile_time_assert(sizeof current_log_buf > sizeof "[SYSLOG]");
}
is_active= 1;
return 0;
}
static int stop_logging()
{
last_error_buf[0]= 0;
if (output_type == OUTPUT_FILE && logfile)
{
logger_close(logfile);
logfile= NULL;
}
else if (output_type == OUTPUT_SYSLOG)
{
closelog();
}
error_header();
fprintf(stderr, "logging was stopped.\n");
is_active= 0;
return 0;
}
static void setup_connection_simple(struct connection_info *ci)
{
ci->db_length= 0;
ci->user_length= 0;
ci->host_length= 0;
ci->ip_length= 0;
ci->query_length= 0;
ci->header= 0;
}
static void setup_connection_connect(struct connection_info *cn,
const struct mysql_event_connection *event)
{
cn->query_id= 0;
cn->query_length= 0;
cn->log_always= 0;
cn->thread_id= event->thread_id;
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
get_str_n(cn->user, &cn->user_length, sizeof(cn->db),
event->user, event->user_length);
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
event->host, event->host_length);
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
event->ip, event->ip_length);
cn->header= 0;
}
#define SAFE_STRLEN(s) (s ? strlen(s) : 0)
static char empty_str[1]= { 0 };
static int is_space(char c)
{
return c == ' ' || c == '\r' || c == '\n' || c == '\t';
}
#define SKIP_SPACES(str) \
do { \
while (is_space(*str)) \
++str; \
} while(0)
#define ESC_MAP_SIZE 0x60
static const char esc_map[ESC_MAP_SIZE]=
{
0, 0, 0, 0, 0, 0, 0, 0, 'b', 't', 'n', 0, 'f', 'r', 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, '\'', 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '\\', 0, 0, 0
};
static char escaped_char(char c)
{
return ((unsigned char ) c) >= ESC_MAP_SIZE ? 0 : esc_map[(unsigned char) c];
}
static void setup_connection_initdb(struct connection_info *cn,
const struct mysql_event_general *event)
{
size_t user_len, host_len, ip_len;
char uh_buffer[512];
cn->thread_id= event->general_thread_id;
cn->query_id= 0;
cn->query_length= 0;
cn->log_always= 0;
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->general_query, event->general_query_length);
if (get_user_host(event->general_user, event->general_user_length,
uh_buffer, sizeof(uh_buffer),
&user_len, &host_len, &ip_len))
{
/* The user@host line is incorrect. */
cn->user_length= 0;
cn->host_length= 0;
cn->ip_length= 0;
}
else
{
get_str_n(cn->user, &cn->user_length, sizeof(cn->user),
uh_buffer, user_len);
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
uh_buffer+user_len+1, host_len);
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
uh_buffer+user_len+1+host_len+1, ip_len);
}
cn->header= 0;
}
static void setup_connection_table(struct connection_info *cn,
const struct mysql_event_table *event)
{
cn->thread_id= event->thread_id;
cn->query_id= query_counter++;
cn->log_always= 0;
cn->query_length= 0;
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
get_str_n(cn->user, &cn->user_length, sizeof(cn->db),
event->user, SAFE_STRLEN(event->user));
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
event->host, SAFE_STRLEN(event->host));
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
event->ip, SAFE_STRLEN(event->ip));
cn->header= 0;
}
static void setup_connection_query(struct connection_info *cn,
const struct mysql_event_general *event)
{
size_t user_len, host_len, ip_len;
char uh_buffer[512];
cn->thread_id= event->general_thread_id;
cn->query_id= query_counter++;
cn->log_always= 0;
cn->query_length= 0;
get_str_n(cn->db, &cn->db_length, sizeof(cn->db), "", 0);
if (get_user_host(event->general_user, event->general_user_length,
uh_buffer, sizeof(uh_buffer),
&user_len, &host_len, &ip_len))
{
/* The user@host line is incorrect. */
cn->user_length= 0;
cn->host_length= 0;
cn->ip_length= 0;
}
else
{
get_str_n(cn->user, &cn->user_length, sizeof(cn->user),
uh_buffer, user_len);
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
uh_buffer+user_len+1, host_len);
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
uh_buffer+user_len+1+host_len+1, ip_len);
}
cn->header= 0;
}
static void change_connection(struct connection_info *cn,
const struct mysql_event_connection *event)
{
get_str_n(cn->user, &cn->user_length, sizeof(cn->user),
event->user, event->user_length);
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
event->ip, event->ip_length);
}
static int write_log(const char *message, size_t len, int take_lock)
{
int result= 0;
if (take_lock)
flogger_mutex_lock(&lock_operations);
if (output_type == OUTPUT_FILE)
{
if (logfile &&
(is_active= (logger_write(logfile, message, len) == (int) len)))
goto exit;
++log_write_failures;
result= 1;
}
else if (output_type == OUTPUT_SYSLOG)
{
syslog(syslog_facility_codes[syslog_facility] |
syslog_priority_codes[syslog_priority],
"%s %.*s", syslog_info, (int) len, message);
}
exit:
if (take_lock)
flogger_mutex_unlock(&lock_operations);
return result;
}
static size_t log_header(char *message, size_t message_len,
time_t *ts,
const char *serverhost, unsigned int serverhost_len,
const char *username, unsigned int username_len,
const char *host, unsigned int host_len,
const char *userip, unsigned int userip_len,
unsigned int connection_id, long long query_id,
const char *operation)
{
struct tm tm_time;
if (host_len == 0 && userip_len != 0)
{
host_len= userip_len;
host= userip;
}
if (output_type == OUTPUT_SYSLOG)
return my_snprintf(message, message_len,
"%.*s,%.*s,%.*s,%d,%lld,%s",
serverhost_len, serverhost,
username_len, username,
host_len, host,
connection_id, query_id, operation);
(void) localtime_r(ts, &tm_time);
return my_snprintf(message, message_len,
"%04d%02d%02d %02d:%02d:%02d,%.*s,%.*s,%.*s,%d,%lld,%s",
tm_time.tm_year+1900, tm_time.tm_mon+1, tm_time.tm_mday,
tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec,
serverhost_len, serverhost,
username_len, username,
host_len, host,
connection_id, query_id, operation);
}
static int log_connection(const struct connection_info *cn,
const struct mysql_event_connection *event,
const char *type)
{
time_t ctime;
size_t csize;
char message[1024];
(void) time(&ctime);
csize= log_header(message, sizeof(message)-1, &ctime,
servhost, servhost_len,
cn->user, cn->user_length,
cn->host, cn->host_length,
cn->ip, cn->ip_length,
event->thread_id, 0, type);
csize+= my_snprintf(message+csize, sizeof(message) - 1 - csize,
",%.*s,,%d", cn->db_length, cn->db, event->status);
message[csize]= '\n';
return write_log(message, csize + 1, 1);
}
static int log_connection_event(const struct mysql_event_connection *event,
const char *type)
{
time_t ctime;
size_t csize;
char message[1024];
(void) time(&ctime);
csize= log_header(message, sizeof(message)-1, &ctime,
servhost, servhost_len,
event->user, event->user_length,
event->host, event->host_length,
event->ip, event->ip_length,
event->thread_id, 0, type);
csize+= my_snprintf(message+csize, sizeof(message) - 1 - csize,
",%.*s,,%d", event->database.length, event->database.str, event->status);
message[csize]= '\n';
return write_log(message, csize + 1, 1);
}
static size_t escape_string(const char *str, unsigned int len,
char *result, size_t result_len)
{
const char *res_start= result;
const char *res_end= result + result_len - 2;
while (len)
{
char esc_c;
if (result >= res_end)
break;
if ((esc_c= escaped_char(*str)))
{
if (result+1 >= res_end)
break;
*(result++)= '\\';
*(result++)= esc_c;
}
else if (is_space(*str))
*(result++)= ' ';
else
*(result++)= *str;
str++;
len--;
}
*result= 0;
return result - res_start;
}
static size_t escape_string_hide_passwords(const char *str, unsigned int len,
char *result, size_t result_len,
const char *word1, size_t word1_len,
const char *word2, size_t word2_len,
int next_text_string)
{
const char *res_start= result;
const char *res_end= result + result_len - 2;
size_t d_len;
char b_char;
while (len)
{
if (len > word1_len + 1 && strncasecmp(str, word1, word1_len) == 0)
{
const char *next_s= str + word1_len;
size_t c;
if (next_text_string)
{
while (*next_s && *next_s != '\'' && *next_s != '"')
++next_s;
}
else
{
if (word2)
{
SKIP_SPACES(next_s);
if (len < (next_s - str) + word2_len + 1 ||
strncasecmp(next_s, word2, word2_len) != 0)
goto no_password;
next_s+= word2_len;
}
while (*next_s && *next_s != '\'' && *next_s != '"')
++next_s;
}
d_len= next_s - str;
if (result + d_len + 5 > res_end)
break;
for (c=0; c<d_len; c++)
result[c]= is_space(str[c]) ? ' ' : str[c];
if (*next_s)
{
memmove(result + d_len, "*****", 5);
result+= d_len + 5;
b_char= *(next_s++);
}
else
result+= d_len;
while (*next_s)
{
if (*next_s == b_char)
{
++next_s;
break;
}
if (*next_s == '\\')
{
if (next_s[1])
next_s++;
}
next_s++;
}
len-= (uint)(next_s - str);
str= next_s;
continue;
}
no_password:
if (result >= res_end)
break;
if ((b_char= escaped_char(*str)))
{
if (result+1 >= res_end)
break;
*(result++)= '\\';
*(result++)= b_char;
}
else if (is_space(*str))
*(result++)= ' ';
else
*(result++)= *str;
str++;
len--;
}
*result= 0;
return result - res_start;
}
static int do_log_user(const char *name, int take_lock)
{
size_t len;
int result;
if (!name)
return 0;
len= strlen(name);
if (take_lock)
flogger_mutex_lock(&lock_operations);
if (incl_user_coll.n_users)
result= coll_search(&incl_user_coll, name, len) != 0;
else if (excl_user_coll.n_users)
result= coll_search(&excl_user_coll, name, len) == 0;
else
result= 1;
if (take_lock)
flogger_mutex_unlock(&lock_operations);
return result;
}
static int get_next_word(const char *query, char *word)
{
int len= 0;
char c;
while ((c= query[len]))
{
if (c >= 'a' && c <= 'z')
word[len]= 'A' + (c-'a');
else if (c >= 'A' && c <= 'Z')
word[len]= c;
else
break;
if (len++ == MAX_KEYWORD)
return 0;
}
word[len]= 0;
return len;
}
static int filter_query_type(const char *query, struct sa_keyword *kwd)
{
int qwe_in_list;
char fword[MAX_KEYWORD + 1], nword[MAX_KEYWORD + 1];
int len, nlen= 0;
const struct sa_keyword *l_keywords;
while (*query && (is_space(*query) || *query == '(' || *query == '/'))
{
/* comment handling */
if (*query == '/' && query[1] == '*')
{
if (query[2] == '!')
{
query+= 3;
while (*query >= '0' && *query <= '9')
query++;
continue;
}
query+= 2;
while (*query)
{
if (*query=='*' && query[1] == '/')
{
query+= 2;
break;
}
query++;
}
continue;
}
query++;
}
qwe_in_list= 0;
if (!(len= get_next_word(query, fword)))
goto not_in_list;
query+= len+1;
l_keywords= kwd;
while (l_keywords->length)
{
if (l_keywords->length == len && strncmp(l_keywords->wd, fword, len) == 0)
{
if (l_keywords->next)
{
if (nlen == 0)
{
while (*query && is_space(*query))
query++;
nlen= get_next_word(query, nword);
}
if (l_keywords->next->length != nlen ||
strncmp(l_keywords->next->wd, nword, nlen) != 0)
goto do_loop;
}
qwe_in_list= l_keywords->type;
break;
};
do_loop:
l_keywords++;
}
not_in_list:
return qwe_in_list;
}
static int log_statement_ex(const struct connection_info *cn,
time_t ev_time, unsigned long thd_id,
const char *query, unsigned int query_len,
int error_code, const char *type, int take_lock)
{
size_t csize;
char message_loc[1024];
char *message= message_loc;
size_t message_size= sizeof(message_loc);
char *uh_buffer;
size_t uh_buffer_size;
const char *db;
unsigned int db_length;
long long query_id;
int result;
if ((db= cn->db))
db_length= cn->db_length;
else
{
db= "";
db_length= 0;
}
if (!(query_id= cn->query_id))
query_id= query_counter++;
if (query == 0)
{
/* Can happen after the error in mysqld_prepare_stmt() */
query= cn->query;
query_len= cn->query_length;
if (query == 0 || query_len == 0)
return 0;
}
if (query && !(events & EVENT_QUERY_ALL) &&
(events & EVENT_QUERY && !cn->log_always))
{
const char *orig_query= query;
if (filter_query_type(query, keywords_to_skip))
{
char fword[MAX_KEYWORD + 1];
int len;
do
{
len= get_next_word(query, fword);
query+= len ? len : 1;
if (len == 3 && strncmp(fword, "FOR", 3) == 0)
break;
} while (*query);
if (*query == 0)
return 0;
}
if (events & EVENT_QUERY_DDL)
{
if (!filter_query_type(query, not_ddl_keywords) &&
filter_query_type(query, ddl_keywords))
goto do_log_query;
}
if (events & EVENT_QUERY_DML)
{
if (filter_query_type(query, dml_keywords))
goto do_log_query;
}
if (events & EVENT_QUERY_DML_NO_SELECT)
{
if (filter_query_type(query, dml_no_select_keywords))
goto do_log_query;
}
if (events & EVENT_QUERY_DCL)
{
if (filter_query_type(query, dcl_keywords))
goto do_log_query;
}
return 0;
do_log_query:
query= orig_query;
}
csize= log_header(message, message_size-1, &ev_time,
servhost, servhost_len,
cn->user, cn->user_length,cn->host, cn->host_length,
cn->ip, cn->ip_length, thd_id, query_id, type);
csize+= my_snprintf(message+csize, message_size - 1 - csize,
",%.*s,\'", db_length, db);
if (query_log_limit > 0 && query_len > query_log_limit)
query_len= query_log_limit;
if (query_len > (message_size - csize)/2)
{
flogger_mutex_lock(&lock_bigbuffer);
if (big_buffer_alloced < (query_len * 2 + csize))
{
big_buffer_alloced= (query_len * 2 + csize + 4095) & ~4095L;
big_buffer= realloc(big_buffer, big_buffer_alloced);
if (big_buffer == NULL)
{
big_buffer_alloced= 0;
return 0;
}
}
memcpy(big_buffer, message, csize);
message= big_buffer;
message_size= big_buffer_alloced;
}
uh_buffer= message + csize;
uh_buffer_size= message_size - csize;
if (query_log_limit > 0 && uh_buffer_size > query_log_limit+2)
uh_buffer_size= query_log_limit+2;
switch (filter_query_type(query, passwd_keywords))
{
case SQLCOM_GRANT:
case SQLCOM_CREATE_USER:
csize+= escape_string_hide_passwords(query, query_len,
uh_buffer, uh_buffer_size,
"IDENTIFIED", 10, "BY", 2, 0);
break;
case SQLCOM_CHANGE_MASTER:
csize+= escape_string_hide_passwords(query, query_len,
uh_buffer, uh_buffer_size,
"MASTER_PASSWORD", 15, "=", 1, 0);
break;
case SQLCOM_CREATE_SERVER:
case SQLCOM_ALTER_SERVER:
csize+= escape_string_hide_passwords(query, query_len,
uh_buffer, uh_buffer_size,
"PASSWORD", 8, NULL, 0, 0);
break;
case SQLCOM_SET_OPTION:
csize+= escape_string_hide_passwords(query, query_len,
uh_buffer, uh_buffer_size,
"=", 1, NULL, 0, 1);
break;
default:
csize+= escape_string(query, query_len,
uh_buffer, uh_buffer_size);
break;
}
csize+= my_snprintf(message+csize, message_size - 1 - csize,
"\',%d", error_code);
message[csize]= '\n';
result= write_log(message, csize + 1, take_lock);
if (message == big_buffer)
flogger_mutex_unlock(&lock_bigbuffer);
return result;
}
static int log_statement(const struct connection_info *cn,
const struct mysql_event_general *event,
const char *type)
{
return log_statement_ex(cn, event->general_time, event->general_thread_id,
event->general_query, event->general_query_length,
event->general_error_code, type, 1);
}
static int log_table(const struct connection_info *cn,
const struct mysql_event_table *event, const char *type)
{
size_t csize;
char message[1024];
time_t ctime;
(void) time(&ctime);
csize= log_header(message, sizeof(message)-1, &ctime,
servhost, servhost_len,
event->user, (unsigned int)SAFE_STRLEN(event->user),
event->host, (unsigned int)SAFE_STRLEN(event->host),
event->ip, (unsigned int)SAFE_STRLEN(event->ip),
event->thread_id, cn->query_id, type);
csize+= my_snprintf(message+csize, sizeof(message) - 1 - csize,
",%.*s,%.*s,",event->database.length, event->database.str,
event->table.length, event->table.str);
message[csize]= '\n';
return write_log(message, csize + 1, 1);
}
static int log_rename(const struct connection_info *cn,
const struct mysql_event_table *event)
{
size_t csize;
char message[1024];
time_t ctime;
(void) time(&ctime);
csize= log_header(message, sizeof(message)-1, &ctime,
servhost, servhost_len,
event->user, (unsigned int)SAFE_STRLEN(event->user),
event->host, (unsigned int)SAFE_STRLEN(event->host),
event->ip, (unsigned int)SAFE_STRLEN(event->ip),
event->thread_id, cn->query_id, "RENAME");
csize+= my_snprintf(message+csize, sizeof(message) - 1 - csize,
",%.*s,%.*s|%.*s.%.*s,",event->database.length, event->database.str,
event->table.length, event->table.str,
event->new_database.length, event->new_database.str,
event->new_table.length, event->new_table.str);
message[csize]= '\n';
return write_log(message, csize + 1, 1);
}
static int event_query_command(const struct mysql_event_general *event)
{
return (event->general_command_length == 5 &&
strncmp(event->general_command, "Query", 5) == 0) ||
(event->general_command_length == 7 &&
(strncmp(event->general_command, "Execute", 7) == 0 ||
(event->general_error_code != 0 &&
strncmp(event->general_command, "Prepare", 7) == 0)));
}
static void update_general_user(struct connection_info *cn,
const struct mysql_event_general *event)
{
char uh_buffer[768];
size_t user_len, host_len, ip_len;
if (cn->user_length == 0 && cn->host_length == 0 && cn->ip_length == 0 &&
get_user_host(event->general_user, event->general_user_length,
uh_buffer, sizeof(uh_buffer),
&user_len, &host_len, &ip_len) == 0)
{
get_str_n(cn->user, &cn->user_length, sizeof(cn->user),
uh_buffer, user_len);
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
uh_buffer+user_len+1, host_len);
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
uh_buffer+user_len+1+host_len+1, ip_len);
}
}
static struct connection_info ci_disconnect_buffer;
#define AA_FREE_CONNECTION 1
#define AA_CHANGE_USER 2
static void update_connection_info(struct connection_info *cn,
unsigned int event_class, const void *ev, int *after_action)
{
*after_action= 0;
switch (event_class) {
case MYSQL_AUDIT_GENERAL_CLASS:
{
const struct mysql_event_general *event =
(const struct mysql_event_general *) ev;
switch (event->event_subclass) {
case MYSQL_AUDIT_GENERAL_LOG:
{
int init_db_command= event->general_command_length == 7 &&
strncmp(event->general_command, "Init DB", 7) == 0;
if (!ci_needs_setup(cn))
{
if (init_db_command)
{
/* Change DB */
if (mysql_57_started)
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
else
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->general_query, event->general_query_length);
}
cn->query_id= mode ? query_counter++ : event->query_id;
cn->query= event->general_query;
cn->query_length= event->general_query_length;
cn->query_time= (time_t) event->general_time;
update_general_user(cn, event);
}
else if (init_db_command)
setup_connection_initdb(cn, event);
else if (event_query_command(event))
setup_connection_query(cn, event);
else
setup_connection_simple(cn);
break;
}
case MYSQL_AUDIT_GENERAL_STATUS:
if (event_query_command(event))
{
if (ci_needs_setup(cn))
setup_connection_query(cn, event);
if (mode == 0 && cn->db_length == 0 && event->database.length > 0)
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
if (event->general_error_code == 0)
{
/* We need to check if it's the USE command to change the DB */
int use_command= event->general_query_length > 4 &&
strncasecmp(event->general_query, "use ", 4) == 0;
if (use_command)
{
/* Change DB */
if (mode)
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->general_query + 4, event->general_query_length - 4);
else
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
}
}
update_general_user(cn, event);
}
break;
case MYSQL_AUDIT_GENERAL_ERROR:
/*
We need this because the MariaDB returns NULL query field for the
MYSQL_AUDIT_GENERAL_STATUS in the mysqld_stmt_prepare.
As a result we get empty QUERY field for errors.
*/
if (ci_needs_setup(cn))
setup_connection_query(cn, event);
cn->query_id= mode ? query_counter++ : event->query_id;
get_str_n(cn->query_buffer, &cn->query_length, sizeof(cn->query_buffer),
event->general_query, event->general_query_length);
cn->query= cn->query_buffer;
cn->query_time= (time_t) event->general_time;
break;
default:;
}
break;
}
case MYSQL_AUDIT_TABLE_CLASS:
{
const struct mysql_event_table *event =
(const struct mysql_event_table *) ev;
if (ci_needs_setup(cn))
setup_connection_table(cn, event);
if (cn->user_length == 0 && cn->host_length == 0 && cn->ip_length == 0)
{
get_str_n(cn->user, &cn->user_length, sizeof(cn->user),
event->user, SAFE_STRLEN(event->user));
get_str_n(cn->host, &cn->host_length, sizeof(cn->host),
event->host, SAFE_STRLEN(event->host));
get_str_n(cn->ip, &cn->ip_length, sizeof(cn->ip),
event->ip, SAFE_STRLEN(event->ip));
}
if (cn->db_length == 0 && event->database.length != 0)
get_str_n(cn->db, &cn->db_length, sizeof(cn->db),
event->database.str, event->database.length);
if (mode == 0)
cn->query_id= event->query_id;
break;
}
case MYSQL_AUDIT_CONNECTION_CLASS:
{
const struct mysql_event_connection *event =
(const struct mysql_event_connection *) ev;
switch (event->event_subclass)
{
case MYSQL_AUDIT_CONNECTION_CONNECT:
setup_connection_connect(cn, event);
break;
case MYSQL_AUDIT_CONNECTION_CHANGE_USER:
*after_action= AA_CHANGE_USER;
break;
default:;
}
break;
}
default:
break;
}
}
struct connection_info cn_error_buffer;
#define FILTER(MASK) (events == 0 || (events & MASK))
void auditing(MYSQL_THD thd, unsigned int event_class, const void *ev)
{
struct connection_info *cn= 0;
int after_action= 0;
/* That one is important as this function can be called with */
/* &lock_operations locked when the server logs an error reported */
/* by this plugin. */
if (!thd || internal_stop_logging)
return;
if (maria_55_started && debug_server_started &&
event_class == MYSQL_AUDIT_GENERAL_CLASS)
{
/*
There's a bug in MariaDB 5.5 that prevents using thread local
variables in some cases.
The 'select * from notexisting_table;' query produces such case.
So just use the static buffer in this case.
*/
const struct mysql_event_general *event =
(const struct mysql_event_general *) ev;
if (event->event_subclass == MYSQL_AUDIT_GENERAL_ERROR ||
(event->event_subclass == MYSQL_AUDIT_GENERAL_STATUS &&
event->general_query_length == 0 &&
cn_error_buffer.query_id == event->query_id))
{
cn= &cn_error_buffer;
cn->header= 1;
}
else
cn= get_loc_info(thd);
}
else
{
cn= get_loc_info(thd);
}
update_connection_info(cn, event_class, ev, &after_action);
if (!logging)
{
if (cn)
cn->log_always= 0;
goto exit_func;
}
if (event_class == MYSQL_AUDIT_GENERAL_CLASS && FILTER(EVENT_QUERY) &&
cn && (cn->log_always || do_log_user(cn->user, 1)))
{
const struct mysql_event_general *event =
(const struct mysql_event_general *) ev;
/*
Only one subclass is logged.
*/
if (event->event_subclass == MYSQL_AUDIT_GENERAL_STATUS &&
event_query_command(event))
{
log_statement(cn, event, "QUERY");
cn->query_length= 0; /* So the log_current_query() won't log this again. */
cn->log_always= 0;
}
}
else if (event_class == MYSQL_AUDIT_TABLE_CLASS && FILTER(EVENT_TABLE) && cn)
{
const struct mysql_event_table *event =
(const struct mysql_event_table *) ev;
if (do_log_user(event->user, 1))
{
switch (event->event_subclass)
{
case MYSQL_AUDIT_TABLE_LOCK:
log_table(cn, event, event->read_only ? "READ" : "WRITE");
break;
case MYSQL_AUDIT_TABLE_CREATE:
log_table(cn, event, "CREATE");
break;
case MYSQL_AUDIT_TABLE_DROP:
log_table(cn, event, "DROP");
break;
case MYSQL_AUDIT_TABLE_RENAME:
log_rename(cn, event);
break;
case MYSQL_AUDIT_TABLE_ALTER:
log_table(cn, event, "ALTER");
break;
default:
break;
}
}
}
else if (event_class == MYSQL_AUDIT_CONNECTION_CLASS &&
FILTER(EVENT_CONNECT) && cn)
{
const struct mysql_event_connection *event =
(const struct mysql_event_connection *) ev;
switch (event->event_subclass)
{
case MYSQL_AUDIT_CONNECTION_CONNECT:
log_connection(cn, event, event->status ? "FAILED_CONNECT": "CONNECT");
break;
case MYSQL_AUDIT_CONNECTION_DISCONNECT:
if (use_event_data_for_disconnect)
log_connection_event(event, "DISCONNECT");
else
log_connection(&ci_disconnect_buffer, event, "DISCONNECT");
break;
case MYSQL_AUDIT_CONNECTION_CHANGE_USER:
log_connection(cn, event, "CHANGEUSER");
break;
default:;
}
}
exit_func:
/*
This must work always, whether logging is ON or not.
*/
if (after_action)
{
switch (after_action) {
case AA_CHANGE_USER:
{
const struct mysql_event_connection *event =
(const struct mysql_event_connection *) ev;
change_connection(cn, event);
break;
}
default:
break;
}
}
}
struct mysql_event_general_v8
{
unsigned int event_class;
unsigned int event_subclass;
int general_error_code;
unsigned long general_thread_id;
const char *general_user;
unsigned int general_user_length;
const char *general_command;
unsigned int general_command_length;
const char *general_query;
unsigned int general_query_length;
struct charset_info_st *general_charset;
unsigned long long general_time;
unsigned long long general_rows;
};
static void auditing_v8(MYSQL_THD thd, struct mysql_event_general_v8 *ev_v8)
{
#ifdef __linux__
#ifdef DBUG_OFF
#ifdef __x86_64__
static const int cmd_off= 4200;
static const int db_off= 120;
static const int db_len_off= 128;
#else
static const int cmd_off= 2668;
static const int db_off= 60;
static const int db_len_off= 64;
#endif /*x86_64*/
#else
#ifdef __x86_64__
static const int cmd_off= 4432;
static const int db_off= 120;
static const int db_len_off= 128;
#else
static const int cmd_off= 2808;
static const int db_off= 64;
static const int db_len_off= 68;
#endif /*x86_64*/
#endif /*DBUG_OFF*/
#endif /* __linux__ */
struct mysql_event_general event;
if (ev_v8->event_class != MYSQL_AUDIT_GENERAL_CLASS)
return;
event.event_subclass= ev_v8->event_subclass;
event.general_error_code= ev_v8->general_error_code;
event.general_thread_id= ev_v8->general_thread_id;
event.general_user= ev_v8->general_user;
event.general_user_length= ev_v8->general_user_length;
event.general_command= ev_v8->general_command;
event.general_command_length= ev_v8->general_command_length;
event.general_query= ev_v8->general_query;
event.general_query_length= ev_v8->general_query_length;
event.general_charset= ev_v8->general_charset;
event.general_time= ev_v8->general_time;
event.general_rows= ev_v8->general_rows;
event.database.str= 0;
event.database.length= 0;
if (event.general_query_length > 0)
{
event.event_subclass= MYSQL_AUDIT_GENERAL_STATUS;
event.general_command= "Query";
event.general_command_length= 5;
#ifdef __linux__
event.database.str= *(char **) (((char *) thd) + db_off);
event.database.length= *(size_t *) (((char *) thd) + db_len_off);
#endif /*__linux*/
}
#ifdef __linux__
else if (*((int *) (((char *)thd) + cmd_off)) == 2)
{
event.event_subclass= MYSQL_AUDIT_GENERAL_LOG;
event.general_command= "Init DB";
event.general_command_length= 7;
event.general_query= *(char **) (((char *) thd) + db_off);
event.general_query_length= *(size_t *) (((char *) thd) + db_len_off);
}
#endif /*__linux*/
auditing(thd, ev_v8->event_class, &event);
}
static void auditing_v13(MYSQL_THD thd, unsigned int *ev_v0)
{
struct mysql_event_general event= *(const struct mysql_event_general *) (ev_v0+1);
if (event.general_query_length > 0)
{
event.event_subclass= MYSQL_AUDIT_GENERAL_STATUS;
event.general_command= "Query";
event.general_command_length= 5;
}
auditing(thd, ev_v0[0], &event);
}
int get_db_mysql57(MYSQL_THD thd, char **name, int *len)
{
int db_off;
int db_len_off;
if (debug_server_started)
{
#ifdef __x86_64__
db_off= 608;
db_len_off= 616;
#else
db_off= 0;
db_len_off= 0;
#endif /*x86_64*/
}
else
{
#ifdef __x86_64__
db_off= 536;
db_len_off= 544;
#else
db_off= 0;
db_len_off= 0;
#endif /*x86_64*/
}
#ifdef __linux__
*name= *(char **) (((char *) thd) + db_off);
*len= *((int *) (((char*) thd) + db_len_off));
if (*name && (*name)[*len] != 0)
return 1;
return 0;
#else
return 1;
#endif
}
/*
As it's just too difficult to #include "sql_class.h",
let's just copy the necessary part of the system_variables
structure here.
*/
typedef struct loc_system_variables
{
ulong dynamic_variables_version;
char* dynamic_variables_ptr;
uint dynamic_variables_head; /* largest valid variable offset */
uint dynamic_variables_size; /* how many bytes are in use */
ulonglong max_heap_table_size;
ulonglong tmp_table_size;
ulonglong long_query_time;
ulonglong optimizer_switch;
ulonglong sql_mode; ///< which non-standard SQL behaviour should be enabled
ulonglong option_bits; ///< OPTION_xxx constants, e.g. OPTION_PROFILING
ulonglong join_buff_space_limit;
ulonglong log_slow_filter;
ulonglong log_slow_verbosity;
ulonglong bulk_insert_buff_size;
ulonglong join_buff_size;
ulonglong sortbuff_size;
ulonglong group_concat_max_len;
ha_rows select_limit;
ha_rows max_join_size;
ha_rows expensive_subquery_limit;
ulong auto_increment_increment, auto_increment_offset;
ulong lock_wait_timeout;
ulong join_cache_level;
ulong max_allowed_packet;
ulong max_error_count;
ulong max_length_for_sort_data;
ulong max_sort_length;
ulong max_tmp_tables;
ulong max_insert_delayed_threads;
ulong min_examined_row_limit;
ulong multi_range_count;
ulong net_buffer_length;
ulong net_interactive_timeout;
ulong net_read_timeout;
ulong net_retry_count;
ulong net_wait_timeout;
ulong net_write_timeout;
ulong optimizer_prune_level;
ulong optimizer_search_depth;
ulong preload_buff_size;
ulong profiling_history_size;
ulong read_buff_size;
ulong read_rnd_buff_size;
ulong mrr_buff_size;
ulong div_precincrement;
/* Total size of all buffers used by the subselect_rowid_merge_engine. */
ulong rowid_merge_buff_size;
ulong max_sp_recursion_depth;
ulong default_week_format;
ulong max_seeks_for_key;
ulong range_alloc_block_size;
ulong query_alloc_block_size;
ulong query_prealloc_size;
ulong trans_alloc_block_size;
ulong trans_prealloc_size;
ulong log_warnings;
/* Flags for slow log filtering */
ulong log_slow_rate_limit;
ulong binlog_format; ///< binlog format for this thd (see enum_binlog_format)
ulong progress_report_time;
my_bool binlog_annotate_row_events;
my_bool binlog_direct_non_trans_update;
my_bool sql_log_bin;
ulong completion_type;
ulong query_cache_type;
} LOC_SV;
static int init_done= 0;
static int server_audit_init(void *p __attribute__((unused)))
{
if (!serv_ver)
{
#ifdef _WIN32
serv_ver= (const char *) GetProcAddress(0, "server_version");
#else
serv_ver= server_version;
#endif /*_WIN32*/
}
if (!mysql_57_started)
{
const void *my_hash_init_ptr= dlsym(RTLD_DEFAULT, "_my_hash_init");
if (!my_hash_init_ptr)
{
maria_above_5= 1;
my_hash_init_ptr= dlsym(RTLD_DEFAULT, "my_hash_init2");
}
if (!my_hash_init_ptr)
return 1;
}
if(!(int_mysql_data_home= dlsym(RTLD_DEFAULT, "mysql_data_home")))
{
if(!(int_mysql_data_home= dlsym(RTLD_DEFAULT, "?mysql_data_home@@3PADA")))
int_mysql_data_home= &default_home;
}
if (!serv_ver)
return 1;
if (!started_mysql)
{
if (!maria_above_5 && serv_ver[4]=='3' && serv_ver[5]<'3')
{
mode= 1;
mode_readonly= 1;
}
}
if (gethostname(servhost, sizeof(servhost)))
strcpy(servhost, "unknown");
servhost_len= (uint)strlen(servhost);
logger_init_mutexes();
#if defined(HAVE_PSI_INTERFACE) && !defined(FLOGGER_NO_PSI)
if (PSI_server)
PSI_server->register_mutex("server_audit", mutex_key_list, 1);
#endif
flogger_mutex_init(key_LOCK_operations, &lock_operations, MY_MUTEX_INIT_FAST);
flogger_mutex_init(key_LOCK_operations, &lock_atomic, MY_MUTEX_INIT_FAST);
flogger_mutex_init(key_LOCK_operations, &lock_bigbuffer, MY_MUTEX_INIT_FAST);
coll_init(&incl_user_coll);
coll_init(&excl_user_coll);
if (incl_users)
{
if (excl_users)
{
incl_users= excl_users= NULL;
error_header();
fprintf(stderr, "INCL_DML_USERS and EXCL_DML_USERS specified"
" simultaneously - both set to empty\n");
}
update_incl_users(NULL, NULL, NULL, &incl_users);
}
else if (excl_users)
{
update_excl_users(NULL, NULL, NULL, &excl_users);
}
error_header();
fprintf(stderr, "MariaDB Audit Plugin version %s%s STARTED.\n",
PLUGIN_STR_VERSION, PLUGIN_DEBUG_VERSION);
/* The Query Cache shadows TABLE events if the result is taken from it */
/* so we warn users if both Query Cashe and TABLE events enabled. */
if (!started_mysql && FILTER(EVENT_TABLE))
{
ulonglong *qc_size= (ulonglong *) dlsym(RTLD_DEFAULT, "query_cache_size");
if (qc_size == NULL || *qc_size != 0)
{
struct loc_system_variables *g_sys_var=
(struct loc_system_variables *) dlsym(RTLD_DEFAULT,
"global_system_variables");
if (g_sys_var && g_sys_var->query_cache_type != 0)
{
error_header();
fprintf(stderr, "Query cache is enabled with the TABLE events."
" Some table reads can be veiled.");
}
}
}
ci_disconnect_buffer.header= 10;
ci_disconnect_buffer.thread_id= 0;
ci_disconnect_buffer.query_id= 0;
ci_disconnect_buffer.db_length= 0;
ci_disconnect_buffer.user_length= 0;
ci_disconnect_buffer.host_length= 0;
ci_disconnect_buffer.ip_length= 0;
ci_disconnect_buffer.query= empty_str;
ci_disconnect_buffer.query_length= 0;
if (logging)
start_logging();
init_done= 1;
return 0;
}
static int server_audit_init_mysql(void *p)
{
started_mysql= 1;
mode= 1;
mode_readonly= 1;
return server_audit_init(p);
}
static int server_audit_deinit(void *p __attribute__((unused)))
{
if (!init_done)
return 0;
init_done= 0;
coll_free(&incl_user_coll);
coll_free(&excl_user_coll);
if (output_type == OUTPUT_FILE && logfile)
logger_close(logfile);
else if (output_type == OUTPUT_SYSLOG)
closelog();
(void) free(big_buffer);
flogger_mutex_destroy(&lock_operations);
flogger_mutex_destroy(&lock_atomic);
flogger_mutex_destroy(&lock_bigbuffer);
error_header();
fprintf(stderr, "STOPPED\n");
return 0;
}
static void rotate_log(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)),
const void *save __attribute__((unused)))
{
if (output_type == OUTPUT_FILE && logfile && *(my_bool*) save)
(void) logger_rotate(logfile);
}
static struct st_mysql_audit mysql_descriptor =
{
MYSQL_AUDIT_INTERFACE_VERSION,
NULL,
auditing,
{ MYSQL_AUDIT_GENERAL_CLASSMASK | MYSQL_AUDIT_CONNECTION_CLASSMASK }
};
mysql_declare_plugin(server_audit)
{
MYSQL_AUDIT_PLUGIN,
&mysql_descriptor,
"SERVER_AUDIT",
" Alexey Botchkov (MariaDB Corporation)",
"Audit the server activity",
PLUGIN_LICENSE_GPL,
server_audit_init_mysql,
server_audit_deinit,
PLUGIN_VERSION,
audit_status,
vars,
NULL,
0
}
mysql_declare_plugin_end;
static struct st_mysql_audit maria_descriptor =
{
MYSQL_AUDIT_INTERFACE_VERSION,
NULL,
auditing,
{ MYSQL_AUDIT_GENERAL_CLASSMASK |
MYSQL_AUDIT_TABLE_CLASSMASK |
MYSQL_AUDIT_CONNECTION_CLASSMASK }
};
maria_declare_plugin(server_audit)
{
MYSQL_AUDIT_PLUGIN,
&maria_descriptor,
"SERVER_AUDIT",
"Alexey Botchkov (MariaDB Corporation)",
"Audit the server activity",
PLUGIN_LICENSE_GPL,
server_audit_init,
server_audit_deinit,
PLUGIN_VERSION,
audit_status,
vars,
PLUGIN_STR_VERSION,
MariaDB_PLUGIN_MATURITY_STABLE
}
maria_declare_plugin_end;
static void mark_always_logged(MYSQL_THD thd)
{
struct connection_info *cn;
if (thd && (cn= get_loc_info(thd)))
cn->log_always= 1;
}
static void log_current_query(MYSQL_THD thd)
{
struct connection_info *cn;
if (!thd)
return;
cn= get_loc_info(thd);
if (!ci_needs_setup(cn) && cn->query_length)
{
cn->log_always= 1;
log_statement_ex(cn, cn->query_time, thd_get_thread_id(thd),
cn->query, cn->query_length, 0, "QUERY", 0);
cn->log_always= 0;
}
}
static void update_file_path(MYSQL_THD thd,
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
char *new_name= (*(char **) save) ? *(char **) save : empty_str;
ADD_ATOMIC(internal_stop_logging, 1);
error_header();
fprintf(stderr, "Log file name was changed to '%s'.\n", new_name);
if (!maria_55_started || !debug_server_started)
flogger_mutex_lock(&lock_operations);
if (logging)
log_current_query(thd);
if (logging && output_type == OUTPUT_FILE)
{
char *sav_path= file_path;
file_path= new_name;
stop_logging();
if (start_logging())
{
file_path= sav_path;
error_header();
fprintf(stderr, "Reverting log filename back to '%s'.\n", file_path);
logging= (start_logging() == 0);
if (!logging)
{
error_header();
fprintf(stderr, "Logging was disabled..\n");
CLIENT_ERROR(1, "Logging was disabled.", MYF(ME_JUST_WARNING));
}
goto exit_func;
}
}
strncpy(path_buffer, new_name, sizeof(path_buffer)-1);
path_buffer[sizeof(path_buffer)-1]= 0;
file_path= path_buffer;
exit_func:
if (!maria_55_started || !debug_server_started)
flogger_mutex_unlock(&lock_operations);
ADD_ATOMIC(internal_stop_logging, -1);
}
static void update_file_rotations(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
rotations= *(unsigned int *) save;
error_header();
fprintf(stderr, "Log file rotations was changed to '%d'.\n", rotations);
if (!logging || output_type != OUTPUT_FILE)
return;
flogger_mutex_lock(&lock_operations);
logfile->rotations= rotations;
flogger_mutex_unlock(&lock_operations);
}
static void update_file_rotate_size(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
file_rotate_size= *(unsigned long long *) save;
error_header();
fprintf(stderr, "Log file rotate size was changed to '%lld'.\n",
file_rotate_size);
if (!logging || output_type != OUTPUT_FILE)
return;
flogger_mutex_lock(&lock_operations);
logfile->size_limit= file_rotate_size;
flogger_mutex_unlock(&lock_operations);
}
static int check_users(void *save, struct st_mysql_value *value,
size_t s, const char *name)
{
const char *users;
int len= 0;
users= value->val_str(value, NULL, &len);
if ((size_t) len > s)
{
error_header();
fprintf(stderr,
"server_audit_%s_users value can't be longer than %zu characters.\n",
name, s);
return 1;
}
*((const char**)save)= users;
return 0;
}
static int check_incl_users(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *save, struct st_mysql_value *value)
{
return check_users(save, value, sizeof(incl_user_buffer), "incl");
}
static int check_excl_users(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *save, struct st_mysql_value *value)
{
return check_users(save, value, sizeof(excl_user_buffer), "excl");
}
static void update_incl_users(MYSQL_THD thd,
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
char *new_users= (*(char **) save) ? *(char **) save : empty_str;
size_t new_len= strlen(new_users) + 1;
if (!maria_55_started || !debug_server_started)
flogger_mutex_lock(&lock_operations);
mark_always_logged(thd);
if (new_len > sizeof(incl_user_buffer))
new_len= sizeof(incl_user_buffer);
memcpy(incl_user_buffer, new_users, new_len - 1);
incl_user_buffer[new_len - 1]= 0;
incl_users= incl_user_buffer;
user_coll_fill(&incl_user_coll, incl_users, &excl_user_coll, 1);
error_header();
fprintf(stderr, "server_audit_incl_users set to '%s'.\n", incl_users);
if (!maria_55_started || !debug_server_started)
flogger_mutex_unlock(&lock_operations);
}
static void update_excl_users(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
char *new_users= (*(char **) save) ? *(char **) save : empty_str;
size_t new_len= strlen(new_users) + 1;
if (!maria_55_started || !debug_server_started)
flogger_mutex_lock(&lock_operations);
mark_always_logged(thd);
if (new_len > sizeof(excl_user_buffer))
new_len= sizeof(excl_user_buffer);
memcpy(excl_user_buffer, new_users, new_len - 1);
excl_user_buffer[new_len - 1]= 0;
excl_users= excl_user_buffer;
user_coll_fill(&excl_user_coll, excl_users, &incl_user_coll, 0);
error_header();
fprintf(stderr, "server_audit_excl_users set to '%s'.\n", excl_users);
if (!maria_55_started || !debug_server_started)
flogger_mutex_unlock(&lock_operations);
}
static void update_output_type(MYSQL_THD thd,
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
ulong new_output_type= *((ulong *) save);
if (output_type == new_output_type)
return;
ADD_ATOMIC(internal_stop_logging, 1);
flogger_mutex_lock(&lock_operations);
if (logging)
{
log_current_query(thd);
stop_logging();
}
output_type= new_output_type;
error_header();
fprintf(stderr, "Output was redirected to '%s'\n",
output_type_names[output_type]);
if (logging)
start_logging();
flogger_mutex_unlock(&lock_operations);
ADD_ATOMIC(internal_stop_logging, -1);
}
static void update_syslog_facility(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
ulong new_facility= *((ulong *) save);
if (syslog_facility == new_facility)
return;
mark_always_logged(thd);
error_header();
fprintf(stderr, "SysLog facility was changed from '%s' to '%s'.\n",
syslog_facility_names[syslog_facility],
syslog_facility_names[new_facility]);
syslog_facility= new_facility;
}
static void update_syslog_priority(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
ulong new_priority= *((ulong *) save);
if (syslog_priority == new_priority)
return;
flogger_mutex_lock(&lock_operations);
mark_always_logged(thd);
flogger_mutex_unlock(&lock_operations);
error_header();
fprintf(stderr, "SysLog priority was changed from '%s' to '%s'.\n",
syslog_priority_names[syslog_priority],
syslog_priority_names[new_priority]);
syslog_priority= new_priority;
}
static void update_logging(MYSQL_THD thd,
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
char new_logging= *(char *) save;
if (new_logging == logging)
return;
ADD_ATOMIC(internal_stop_logging, 1);
if (!maria_55_started || !debug_server_started)
flogger_mutex_lock(&lock_operations);
if ((logging= new_logging))
{
start_logging();
if (!logging)
{
CLIENT_ERROR(1, "Logging was disabled.", MYF(ME_JUST_WARNING));
}
mark_always_logged(thd);
}
else
{
log_current_query(thd);
stop_logging();
}
if (!maria_55_started || !debug_server_started)
flogger_mutex_unlock(&lock_operations);
ADD_ATOMIC(internal_stop_logging, -1);
}
static void update_mode(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
unsigned int new_mode= *(unsigned int *) save;
if (mode_readonly || new_mode == mode)
return;
ADD_ATOMIC(internal_stop_logging, 1);
if (!maria_55_started || !debug_server_started)
flogger_mutex_lock(&lock_operations);
mark_always_logged(thd);
error_header();
fprintf(stderr, "Logging mode was changed from %d to %d.\n", mode, new_mode);
mode= new_mode;
if (!maria_55_started || !debug_server_started)
flogger_mutex_unlock(&lock_operations);
ADD_ATOMIC(internal_stop_logging, -1);
}
static void update_syslog_ident(MYSQL_THD thd __attribute__((unused)),
struct st_mysql_sys_var *var __attribute__((unused)),
void *var_ptr __attribute__((unused)), const void *save)
{
char *new_ident= (*(char **) save) ? *(char **) save : empty_str;
strncpy(syslog_ident_buffer, new_ident, sizeof(syslog_ident_buffer)-1);
syslog_ident_buffer[sizeof(syslog_ident_buffer)-1]= 0;
syslog_ident= syslog_ident_buffer;
error_header();
fprintf(stderr, "SYSYLOG ident was changed to '%s'\n", syslog_ident);
flogger_mutex_lock(&lock_operations);
mark_always_logged(thd);
if (logging && output_type == OUTPUT_SYSLOG)
{
stop_logging();
start_logging();
}
flogger_mutex_unlock(&lock_operations);
}
struct st_my_thread_var *loc_thread_var(void)
{
return 0;
}
#ifdef _WIN32
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
if (fdwReason != DLL_PROCESS_ATTACH)
return 1;
serv_ver= (const char *) GetProcAddress(0, "server_version");
#else
void __attribute__ ((constructor)) audit_plugin_so_init(void)
{
serv_ver= server_version;
#endif /*_WIN32*/
if (!serv_ver)
goto exit;
started_mariadb= strstr(serv_ver, "MariaDB") != 0;
debug_server_started= strstr(serv_ver, "debug") != 0;
if (started_mariadb)
{
if (serv_ver[0] == '1')
use_event_data_for_disconnect= 1;
else
maria_55_started= 1;
}
else
{
/* Started MySQL. */
if (serv_ver[0] == '5' && serv_ver[2] == '5')
{
int sc= serv_ver[4] - '0';
if (serv_ver[5] >= '0' && serv_ver[5] <= '9')
sc= sc * 10 + serv_ver[5] - '0';
if (sc <= 10)
{
mysql_descriptor.interface_version= 0x0200;
mysql_descriptor.event_notify= (void *) auditing_v8;
}
else if (sc < 14)
{
mysql_descriptor.interface_version= 0x0200;
mysql_descriptor.event_notify= (void *) auditing_v13;
}
}
else if (serv_ver[0] == '5' && serv_ver[2] == '6')
{
int sc= serv_ver[4] - '0';
if (serv_ver[5] >= '0' && serv_ver[5] <= '9')
sc= sc * 10 + serv_ver[5] - '0';
if (sc >= 24)
use_event_data_for_disconnect= 1;
}
else if ((serv_ver[0] == '5' && serv_ver[2] == '7') ||
(serv_ver[0] == '8' && serv_ver[2] == '0'))
{
mysql_57_started= 1;
_mysql_plugin_declarations_[0].info= mysql_v4_descriptor;
use_event_data_for_disconnect= 1;
}
MYSQL_SYSVAR_NAME(loc_info).flags= PLUGIN_VAR_STR | PLUGIN_VAR_THDLOCAL |
PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC;
}
memset(locinfo_ini_value, 'O', sizeof(locinfo_ini_value)-1);
locinfo_ini_value[sizeof(locinfo_ini_value)-1]= 0;
exit:
#ifdef _WIN32
return 1;
#else
return;
#endif
}
|