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
|
#!/bin/sh
#-
# Copyright 2004-2007 Colin Percival
# All rights reserved
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted providing that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# $FreeBSD$
#### Usage function -- called from command-line handling code.
# Usage instructions. Options not listed:
# --debug -- don't filter output from utilities
# --no-stats -- don't show progress statistics while fetching files
usage () {
cat <<EOF
usage: `basename $0` [options] command ... [path]
Options:
-b basedir -- Operate on a system mounted at basedir
(default: /)
-d workdir -- Store working files in workdir
(default: /var/db/freebsd-update/)
-f conffile -- Read configuration options from conffile
(default: /etc/freebsd-update.conf)
-k KEY -- Trust an RSA key with SHA256 hash of KEY
-r release -- Target for upgrade (e.g., 6.2-RELEASE)
-s server -- Server from which to fetch updates
(default: update.FreeBSD.org)
-t address -- Mail output of cron command, if any, to address
(default: root)
Commands:
fetch -- Fetch updates from server
cron -- Sleep rand(3600) seconds, fetch updates, and send an
email if updates were found
upgrade -- Fetch upgrades to FreeBSD version specified via -r option
install -- Install downloaded updates or upgrades
rollback -- Uninstall most recently installed updates
EOF
exit 0
}
#### Configuration processing functions
#-
# Configuration options are set in the following order of priority:
# 1. Command line options
# 2. Configuration file options
# 3. Default options
# In addition, certain options (e.g., IgnorePaths) can be specified multiple
# times and (as long as these are all in the same place, e.g., inside the
# configuration file) they will accumulate. Finally, because the path to the
# configuration file can be specified at the command line, the entire command
# line must be processed before we start reading the configuration file.
#
# Sound like a mess? It is. Here's how we handle this:
# 1. Initialize CONFFILE and all the options to "".
# 2. Process the command line. Throw an error if a non-accumulating option
# is specified twice.
# 3. If CONFFILE is "", set CONFFILE to /etc/freebsd-update.conf .
# 4. For all the configuration options X, set X_saved to X.
# 5. Initialize all the options to "".
# 6. Read CONFFILE line by line, parsing options.
# 7. For each configuration option X, set X to X_saved iff X_saved is not "".
# 8. Repeat steps 4-7, except setting options to their default values at (6).
CONFIGOPTIONS="KEYPRINT WORKDIR SERVERNAME MAILTO ALLOWADD ALLOWDELETE
KEEPMODIFIEDMETADATA COMPONENTS IGNOREPATHS UPDATEIFUNMODIFIED
BASEDIR VERBOSELEVEL TARGETRELEASE STRICTCOMPONENTS MERGECHANGES"
# Set all the configuration options to "".
nullconfig () {
for X in ${CONFIGOPTIONS}; do
eval ${X}=""
done
}
# For each configuration option X, set X_saved to X.
saveconfig () {
for X in ${CONFIGOPTIONS}; do
eval ${X}_saved=\$${X}
done
}
# For each configuration option X, set X to X_saved if X_saved is not "".
mergeconfig () {
for X in ${CONFIGOPTIONS}; do
eval _=\$${X}_saved
if ! [ -z "${_}" ]; then
eval ${X}=\$${X}_saved
fi
done
}
# Set the trusted keyprint.
config_KeyPrint () {
if [ -z ${KEYPRINT} ]; then
KEYPRINT=$1
else
return 1
fi
}
# Set the working directory.
config_WorkDir () {
if [ -z ${WORKDIR} ]; then
WORKDIR=$1
else
return 1
fi
}
# Set the name of the server (pool) from which to fetch updates
config_ServerName () {
if [ -z ${SERVERNAME} ]; then
SERVERNAME=$1
else
return 1
fi
}
# Set the address to which 'cron' output will be mailed.
config_MailTo () {
if [ -z ${MAILTO} ]; then
MAILTO=$1
else
return 1
fi
}
# Set whether FreeBSD Update is allowed to add files (or directories, or
# symlinks) which did not previously exist.
config_AllowAdd () {
if [ -z ${ALLOWADD} ]; then
case $1 in
[Yy][Ee][Ss])
ALLOWADD=yes
;;
[Nn][Oo])
ALLOWADD=no
;;
*)
return 1
;;
esac
else
return 1
fi
}
# Set whether FreeBSD Update is allowed to remove files/directories/symlinks.
config_AllowDelete () {
if [ -z ${ALLOWDELETE} ]; then
case $1 in
[Yy][Ee][Ss])
ALLOWDELETE=yes
;;
[Nn][Oo])
ALLOWDELETE=no
;;
*)
return 1
;;
esac
else
return 1
fi
}
# Set whether FreeBSD Update should keep existing inode ownership,
# permissions, and flags, in the event that they have been modified locally
# after the release.
config_KeepModifiedMetadata () {
if [ -z ${KEEPMODIFIEDMETADATA} ]; then
case $1 in
[Yy][Ee][Ss])
KEEPMODIFIEDMETADATA=yes
;;
[Nn][Oo])
KEEPMODIFIEDMETADATA=no
;;
*)
return 1
;;
esac
else
return 1
fi
}
# Add to the list of components which should be kept updated.
config_Components () {
for C in $@; do
COMPONENTS="${COMPONENTS} ${C}"
done
}
# Add to the list of paths under which updates will be ignored.
config_IgnorePaths () {
for C in $@; do
IGNOREPATHS="${IGNOREPATHS} ${C}"
done
}
# Add to the list of paths within which updates will be performed only if the
# file on disk has not been modified locally.
config_UpdateIfUnmodified () {
for C in $@; do
UPDATEIFUNMODIFIED="${UPDATEIFUNMODIFIED} ${C}"
done
}
# Add to the list of paths within which updates to text files will be merged
# instead of overwritten.
config_MergeChanges () {
for C in $@; do
MERGECHANGES="${MERGECHANGES} ${C}"
done
}
# Work on a FreeBSD installation mounted under $1
config_BaseDir () {
if [ -z ${BASEDIR} ]; then
BASEDIR=$1
else
return 1
fi
}
# When fetching upgrades, should we assume the user wants exactly the
# components listed in COMPONENTS, rather than trying to guess based on
# what's currently installed?
config_StrictComponents () {
if [ -z ${STRICTCOMPONENTS} ]; then
case $1 in
[Yy][Ee][Ss])
STRICTCOMPONENTS=yes
;;
[Nn][Oo])
STRICTCOMPONENTS=no
;;
*)
return 1
;;
esac
else
return 1
fi
}
# Upgrade to FreeBSD $1
config_TargetRelease () {
if [ -z ${TARGETRELEASE} ]; then
TARGETRELEASE=$1
else
return 1
fi
}
# Define what happens to output of utilities
config_VerboseLevel () {
if [ -z ${VERBOSELEVEL} ]; then
case $1 in
[Dd][Ee][Bb][Uu][Gg])
VERBOSELEVEL=debug
;;
[Nn][Oo][Ss][Tt][Aa][Tt][Ss])
VERBOSELEVEL=nostats
;;
[Ss][Tt][Aa][Tt][Ss])
VERBOSELEVEL=stats
;;
*)
return 1
;;
esac
else
return 1
fi
}
# Handle one line of configuration
configline () {
if [ $# -eq 0 ]; then
return
fi
OPT=$1
shift
config_${OPT} $@
}
#### Parameter handling functions.
# Initialize parameters to null, just in case they're
# set in the environment.
init_params () {
# Configration settings
nullconfig
# No configuration file set yet
CONFFILE=""
# No commands specified yet
COMMANDS=""
}
# Parse the command line
parse_cmdline () {
while [ $# -gt 0 ]; do
case "$1" in
# Location of configuration file
-f)
if [ $# -eq 1 ]; then usage; fi
if [ ! -z "${CONFFILE}" ]; then usage; fi
shift; CONFFILE="$1"
;;
# Configuration file equivalents
-b)
if [ $# -eq 1 ]; then usage; fi; shift
config_BaseDir $1 || usage
;;
-d)
if [ $# -eq 1 ]; then usage; fi; shift
config_WorkDir $1 || usage
;;
-k)
if [ $# -eq 1 ]; then usage; fi; shift
config_KeyPrint $1 || usage
;;
-s)
if [ $# -eq 1 ]; then usage; fi; shift
config_ServerName $1 || usage
;;
-r)
if [ $# -eq 1 ]; then usage; fi; shift
config_TargetRelease $1 || usage
;;
-t)
if [ $# -eq 1 ]; then usage; fi; shift
config_MailTo $1 || usage
;;
-v)
if [ $# -eq 1 ]; then usage; fi; shift
config_VerboseLevel $1 || usage
;;
# Aliases for "-v debug" and "-v nostats"
--debug)
config_VerboseLevel debug || usage
;;
--no-stats)
config_VerboseLevel nostats || usage
;;
# Commands
cron | fetch | upgrade | install | rollback)
COMMANDS="${COMMANDS} $1"
;;
# Anything else is an error
*)
usage
;;
esac
shift
done
# Make sure we have at least one command
if [ -z "${COMMANDS}" ]; then
usage
fi
}
# Parse the configuration file
parse_conffile () {
# If a configuration file was specified on the command line, check
# that it exists and is readable.
if [ ! -z "${CONFFILE}" ] && [ ! -r "${CONFFILE}" ]; then
echo -n "File does not exist "
echo -n "or is not readable: "
echo ${CONFFILE}
exit 1
fi
# If a configuration file was not specified on the command line,
# use the default configuration file path. If that default does
# not exist, give up looking for any configuration.
if [ -z "${CONFFILE}" ]; then
CONFFILE="/etc/freebsd-update.conf"
if [ ! -r "${CONFFILE}" ]; then
return
fi
fi
# Save the configuration options specified on the command line, and
# clear all the options in preparation for reading the config file.
saveconfig
nullconfig
# Read the configuration file. Anything after the first '#' is
# ignored, and any blank lines are ignored.
L=0
while read LINE; do
L=$(($L + 1))
LINEX=`echo "${LINE}" | cut -f 1 -d '#'`
if ! configline ${LINEX}; then
echo "Error processing configuration file, line $L:"
echo "==> ${LINE}"
exit 1
fi
done < ${CONFFILE}
# Merge the settings read from the configuration file with those
# provided at the command line.
mergeconfig
}
# Provide some default parameters
default_params () {
# Save any parameters already configured, and clear the slate
saveconfig
nullconfig
# Default configurations
config_WorkDir /var/db/freebsd-update
config_MailTo root
config_AllowAdd yes
config_AllowDelete yes
config_KeepModifiedMetadata yes
config_BaseDir /
config_VerboseLevel stats
config_StrictComponents no
# Merge these defaults into the earlier-configured settings
mergeconfig
}
# Set utility output filtering options, based on ${VERBOSELEVEL}
fetch_setup_verboselevel () {
case ${VERBOSELEVEL} in
debug)
QUIETREDIR="/dev/stderr"
QUIETFLAG=" "
STATSREDIR="/dev/stderr"
DDSTATS=".."
XARGST="-t"
NDEBUG=" "
;;
nostats)
QUIETREDIR=""
QUIETFLAG=""
STATSREDIR="/dev/null"
DDSTATS=".."
XARGST=""
NDEBUG=""
;;
stats)
QUIETREDIR="/dev/null"
QUIETFLAG="-q"
STATSREDIR="/dev/stdout"
DDSTATS=""
XARGST=""
NDEBUG="-n"
;;
esac
}
# Perform sanity checks and set some final parameters
# in preparation for fetching files. Figure out which
# set of updates should be downloaded: If the user is
# running *-p[0-9]+, strip off the last part; if the
# user is running -SECURITY, call it -RELEASE. Chdir
# into the working directory.
fetch_check_params () {
export HTTP_USER_AGENT="freebsd-update (${COMMAND}, `uname -r`)"
_SERVERNAME_z=\
"SERVERNAME must be given via command line or configuration file."
_KEYPRINT_z="Key must be given via -k option or configuration file."
_KEYPRINT_bad="Invalid key fingerprint: "
_WORKDIR_bad="Directory does not exist or is not writable: "
if [ -z "${SERVERNAME}" ]; then
echo -n "`basename $0`: "
echo "${_SERVERNAME_z}"
exit 1
fi
if [ -z "${KEYPRINT}" ]; then
echo -n "`basename $0`: "
echo "${_KEYPRINT_z}"
exit 1
fi
if ! echo "${KEYPRINT}" | grep -qE "^[0-9a-f]{64}$"; then
echo -n "`basename $0`: "
echo -n "${_KEYPRINT_bad}"
echo ${KEYPRINT}
exit 1
fi
if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
echo -n "`basename $0`: "
echo -n "${_WORKDIR_bad}"
echo ${WORKDIR}
exit 1
fi
cd ${WORKDIR} || exit 1
# Generate release number. The s/SECURITY/RELEASE/ bit exists
# to provide an upgrade path for FreeBSD Update 1.x users, since
# the kernels provided by FreeBSD Update 1.x are always labelled
# as X.Y-SECURITY.
RELNUM=`uname -r |
sed -E 's,-p[0-9]+,,' |
sed -E 's,-SECURITY,-RELEASE,'`
ARCH=`uname -m`
FETCHDIR=${RELNUM}/${ARCH}
PATCHDIR=${RELNUM}/${ARCH}/bp
# Figure out what directory contains the running kernel
BOOTFILE=`sysctl -n kern.bootfile`
KERNELDIR=${BOOTFILE%/kernel}
if ! [ -d ${KERNELDIR} ]; then
echo "Cannot identify running kernel"
exit 1
fi
# Figure out what kernel configuration is running. We start with
# the output of `uname -i`, and then make the following adjustments:
# 1. Replace "SMP-GENERIC" with "SMP". Why the SMP kernel config
# file says "ident SMP-GENERIC", I don't know...
# 2. If the kernel claims to be GENERIC _and_ ${ARCH} is "amd64"
# _and_ `sysctl kern.version` contains a line which ends "/SMP", then
# we're running an SMP kernel. This mis-identification is a bug
# which was fixed in 6.2-STABLE.
KERNCONF=`uname -i`
if [ ${KERNCONF} = "SMP-GENERIC" ]; then
KERNCONF=SMP
fi
if [ ${KERNCONF} = "GENERIC" ] && [ ${ARCH} = "amd64" ]; then
if sysctl kern.version | grep -qE '/SMP$'; then
KERNCONF=SMP
fi
fi
# Define some paths
BSPATCH=/usr/bin/bspatch
SHA256=/sbin/sha256
PHTTPGET=/usr/libexec/phttpget
# Set up variables relating to VERBOSELEVEL
fetch_setup_verboselevel
# Construct a unique name from ${BASEDIR}
BDHASH=`echo ${BASEDIR} | sha256 -q`
}
# Perform sanity checks etc. before fetching upgrades.
upgrade_check_params () {
fetch_check_params
# Unless set otherwise, we're upgrading to the same kernel config.
NKERNCONF=${KERNCONF}
# We need TARGETRELEASE set
_TARGETRELEASE_z="Release target must be specified via -r option."
if [ -z "${TARGETRELEASE}" ]; then
echo -n "`basename $0`: "
echo "${_TARGETRELEASE_z}"
exit 1
fi
# The target release should be != the current release.
if [ "${TARGETRELEASE}" = "${RELNUM}" ]; then
echo -n "`basename $0`: "
echo "Cannot upgrade from ${RELNUM} to itself"
exit 1
fi
# Turning off AllowAdd or AllowDelete is a bad idea for upgrades.
if [ "${ALLOWADD}" = "no" ]; then
echo -n "`basename $0`: "
echo -n "WARNING: \"AllowAdd no\" is a bad idea "
echo "when upgrading between releases."
echo
fi
if [ "${ALLOWDELETE}" = "no" ]; then
echo -n "`basename $0`: "
echo -n "WARNING: \"AllowDelete no\" is a bad idea "
echo "when upgrading between releases."
echo
fi
# Set EDITOR to /usr/bin/vi if it isn't already set
: ${EDITOR:='/usr/bin/vi'}
}
# Perform sanity checks and set some final parameters in
# preparation for installing updates.
install_check_params () {
# Check that we are root. All sorts of things won't work otherwise.
if [ `id -u` != 0 ]; then
echo "You must be root to run this."
exit 1
fi
# Check that securelevel <= 0. Otherwise we can't update schg files.
if [ `sysctl -n kern.securelevel` -gt 0 ]; then
echo "Updates cannot be installed when the system securelevel"
echo "is greater than zero."
exit 1
fi
# Check that we have a working directory
_WORKDIR_bad="Directory does not exist or is not writable: "
if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
echo -n "`basename $0`: "
echo -n "${_WORKDIR_bad}"
echo ${WORKDIR}
exit 1
fi
cd ${WORKDIR} || exit 1
# Construct a unique name from ${BASEDIR}
BDHASH=`echo ${BASEDIR} | sha256 -q`
# Check that we have updates ready to install
if ! [ -L ${BDHASH}-install ]; then
echo "No updates are available to install."
echo "Run '$0 fetch' first."
exit 1
fi
if ! [ -f ${BDHASH}-install/INDEX-OLD ] ||
! [ -f ${BDHASH}-install/INDEX-NEW ]; then
echo "Update manifest is corrupt -- this should never happen."
echo "Re-run '$0 fetch'."
exit 1
fi
}
# Perform sanity checks and set some final parameters in
# preparation for UNinstalling updates.
rollback_check_params () {
# Check that we are root. All sorts of things won't work otherwise.
if [ `id -u` != 0 ]; then
echo "You must be root to run this."
exit 1
fi
# Check that we have a working directory
_WORKDIR_bad="Directory does not exist or is not writable: "
if ! [ -d "${WORKDIR}" -a -w "${WORKDIR}" ]; then
echo -n "`basename $0`: "
echo -n "${_WORKDIR_bad}"
echo ${WORKDIR}
exit 1
fi
cd ${WORKDIR} || exit 1
# Construct a unique name from ${BASEDIR}
BDHASH=`echo ${BASEDIR} | sha256 -q`
# Check that we have updates ready to rollback
if ! [ -L ${BDHASH}-rollback ]; then
echo "No rollback directory found."
exit 1
fi
if ! [ -f ${BDHASH}-rollback/INDEX-OLD ] ||
! [ -f ${BDHASH}-rollback/INDEX-NEW ]; then
echo "Update manifest is corrupt -- this should never happen."
exit 1
fi
}
#### Core functionality -- the actual work gets done here
# Use an SRV query to pick a server. If the SRV query doesn't provide
# a useful answer, use the server name specified by the user.
# Put another way... look up _http._tcp.${SERVERNAME} and pick a server
# from that; or if no servers are returned, use ${SERVERNAME}.
# This allows a user to specify "portsnap.freebsd.org" (in which case
# portsnap will select one of the mirrors) or "portsnap5.tld.freebsd.org"
# (in which case portsnap will use that particular server, since there
# won't be an SRV entry for that name).
#
# We ignore the Port field, since we are always going to use port 80.
# Fetch the mirror list, but do not pick a mirror yet. Returns 1 if
# no mirrors are available for any reason.
fetch_pick_server_init () {
: > serverlist_tried
# Check that host(1) exists (i.e., that the system wasn't built with the
# WITHOUT_BIND set) and don't try to find a mirror if it doesn't exist.
if ! which -s host; then
: > serverlist_full
return 1
fi
echo -n "Looking up ${SERVERNAME} mirrors... "
# Issue the SRV query and pull out the Priority, Weight, and Target fields.
# BIND 9 prints "$name has SRV record ..." while BIND 8 prints
# "$name server selection ..."; we allow either format.
MLIST="_http._tcp.${SERVERNAME}"
host -t srv "${MLIST}" |
sed -nE "s/${MLIST} (has SRV record|server selection) //p" |
cut -f 1,2,4 -d ' ' |
sed -e 's/\.$//' |
sort > serverlist_full
# If no records, give up -- we'll just use the server name we were given.
if [ `wc -l < serverlist_full` -eq 0 ]; then
echo "none found."
return 1
fi
# Report how many mirrors we found.
echo `wc -l < serverlist_full` "mirrors found."
# Generate a random seed for use in picking mirrors. If HTTP_PROXY
# is set, this will be used to generate the seed; otherwise, the seed
# will be random.
if [ -n "${HTTP_PROXY}${http_proxy}" ]; then
RANDVALUE=`sha256 -qs "${HTTP_PROXY}${http_proxy}" |
tr -d 'a-f' |
cut -c 1-9`
else
RANDVALUE=`jot -r 1 0 999999999`
fi
}
# Pick a mirror. Returns 1 if we have run out of mirrors to try.
fetch_pick_server () {
# Generate a list of not-yet-tried mirrors
sort serverlist_tried |
comm -23 serverlist_full - > serverlist
# Have we run out of mirrors?
if [ `wc -l < serverlist` -eq 0 ]; then
echo "No mirrors remaining, giving up."
return 1
fi
# Find the highest priority level (lowest numeric value).
SRV_PRIORITY=`cut -f 1 -d ' ' serverlist | sort -n | head -1`
# Add up the weights of the response lines at that priority level.
SRV_WSUM=0;
while read X; do
case "$X" in
${SRV_PRIORITY}\ *)
SRV_W=`echo $X | cut -f 2 -d ' '`
SRV_WSUM=$(($SRV_WSUM + $SRV_W))
;;
esac
done < serverlist
# If all the weights are 0, pretend that they are all 1 instead.
if [ ${SRV_WSUM} -eq 0 ]; then
SRV_WSUM=`grep -E "^${SRV_PRIORITY} " serverlist | wc -l`
SRV_W_ADD=1
else
SRV_W_ADD=0
fi
# Pick a value between 0 and the sum of the weights - 1
SRV_RND=`expr ${RANDVALUE} % ${SRV_WSUM}`
# Read through the list of mirrors and set SERVERNAME. Write the line
# corresponding to the mirror we selected into serverlist_tried so that
# we won't try it again.
while read X; do
case "$X" in
${SRV_PRIORITY}\ *)
SRV_W=`echo $X | cut -f 2 -d ' '`
SRV_W=$(($SRV_W + $SRV_W_ADD))
if [ $SRV_RND -lt $SRV_W ]; then
SERVERNAME=`echo $X | cut -f 3 -d ' '`
echo "$X" >> serverlist_tried
break
else
SRV_RND=$(($SRV_RND - $SRV_W))
fi
;;
esac
done < serverlist
}
# Take a list of ${oldhash}|${newhash} and output a list of needed patches,
# i.e., those for which we have ${oldhash} and don't have ${newhash}.
fetch_make_patchlist () {
grep -vE "^([0-9a-f]{64})\|\1$" |
tr '|' ' ' |
while read X Y; do
if [ -f "files/${Y}.gz" ] ||
[ ! -f "files/${X}.gz" ]; then
continue
fi
echo "${X}|${Y}"
done | uniq
}
# Print user-friendly progress statistics
fetch_progress () {
LNC=0
while read x; do
LNC=$(($LNC + 1))
if [ $(($LNC % 10)) = 0 ]; then
echo -n $LNC
elif [ $(($LNC % 2)) = 0 ]; then
echo -n .
fi
done
echo -n " "
}
# Function for asking the user if everything is ok
continuep () {
while read -p "Does this look reasonable (y/n)? " CONTINUE; do
case "${CONTINUE}" in
y*)
return 0
;;
n*)
return 1
;;
esac
done
}
# Initialize the working directory
workdir_init () {
mkdir -p files
touch tINDEX.present
}
# Check that we have a public key with an appropriate hash, or
# fetch the key if it doesn't exist. Returns 1 if the key has
# not yet been fetched.
fetch_key () {
if [ -r pub.ssl ] && [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then
return 0
fi
echo -n "Fetching public key from ${SERVERNAME}... "
rm -f pub.ssl
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/pub.ssl \
2>${QUIETREDIR} || true
if ! [ -r pub.ssl ]; then
echo "failed."
return 1
fi
if ! [ `${SHA256} -q pub.ssl` = ${KEYPRINT} ]; then
echo "key has incorrect hash."
rm -f pub.ssl
return 1
fi
echo "done."
}
# Fetch metadata signature, aka "tag".
fetch_tag () {
echo -n "Fetching metadata signature "
echo ${NDEBUG} "for ${RELNUM} from ${SERVERNAME}... "
rm -f latest.ssl
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/latest.ssl \
2>${QUIETREDIR} || true
if ! [ -r latest.ssl ]; then
echo "failed."
return 1
fi
openssl rsautl -pubin -inkey pub.ssl -verify \
< latest.ssl > tag.new 2>${QUIETREDIR} || true
rm latest.ssl
if ! [ `wc -l < tag.new` = 1 ] ||
! grep -qE \
"^freebsd-update\|${ARCH}\|${RELNUM}\|[0-9]+\|[0-9a-f]{64}\|[0-9]{10}" \
tag.new; then
echo "invalid signature."
return 1
fi
echo "done."
RELPATCHNUM=`cut -f 4 -d '|' < tag.new`
TINDEXHASH=`cut -f 5 -d '|' < tag.new`
EOLTIME=`cut -f 6 -d '|' < tag.new`
}
# Sanity-check the patch number in a tag, to make sure that we're not
# going to "update" backwards and to prevent replay attacks.
fetch_tagsanity () {
# Check that we're not going to move from -pX to -pY with Y < X.
RELPX=`uname -r | sed -E 's,.*-,,'`
if echo ${RELPX} | grep -qE '^p[0-9]+$'; then
RELPX=`echo ${RELPX} | cut -c 2-`
else
RELPX=0
fi
if [ "${RELPATCHNUM}" -lt "${RELPX}" ]; then
echo
echo -n "Files on mirror (${RELNUM}-p${RELPATCHNUM})"
echo " appear older than what"
echo "we are currently running (`uname -r`)!"
echo "Cowardly refusing to proceed any further."
return 1
fi
# If "tag" exists and corresponds to ${RELNUM}, make sure that
# it contains a patch number <= RELPATCHNUM, in order to protect
# against rollback (replay) attacks.
if [ -f tag ] &&
grep -qE \
"^freebsd-update\|${ARCH}\|${RELNUM}\|[0-9]+\|[0-9a-f]{64}\|[0-9]{10}" \
tag; then
LASTRELPATCHNUM=`cut -f 4 -d '|' < tag`
if [ "${RELPATCHNUM}" -lt "${LASTRELPATCHNUM}" ]; then
echo
echo -n "Files on mirror (${RELNUM}-p${RELPATCHNUM})"
echo " are older than the"
echo -n "most recently seen updates"
echo " (${RELNUM}-p${LASTRELPATCHNUM})."
echo "Cowardly refusing to proceed any further."
return 1
fi
fi
}
# Fetch metadata index file
fetch_metadata_index () {
echo ${NDEBUG} "Fetching metadata index... "
rm -f ${TINDEXHASH}
fetch ${QUIETFLAG} http://${SERVERNAME}/${FETCHDIR}/t/${TINDEXHASH}
2>${QUIETREDIR}
if ! [ -f ${TINDEXHASH} ]; then
echo "failed."
return 1
fi
if [ `${SHA256} -q ${TINDEXHASH}` != ${TINDEXHASH} ]; then
echo "update metadata index corrupt."
return 1
fi
echo "done."
}
# Print an error message about signed metadata being bogus.
fetch_metadata_bogus () {
echo
echo "The update metadata$1 is correctly signed, but"
echo "failed an integrity check."
echo "Cowardly refusing to proceed any further."
return 1
}
# Construct tINDEX.new by merging the lines named in $1 from ${TINDEXHASH}
# with the lines not named in $@ from tINDEX.present (if that file exists).
fetch_metadata_index_merge () {
for METAFILE in $@; do
if [ `grep -E "^${METAFILE}\|" ${TINDEXHASH} | wc -l` \
-ne 1 ]; then
fetch_metadata_bogus " index"
return 1
fi
grep -E "${METAFILE}\|" ${TINDEXHASH}
done |
sort > tINDEX.wanted
if [ -f tINDEX.present ]; then
join -t '|' -v 2 tINDEX.wanted tINDEX.present |
sort -m - tINDEX.wanted > tINDEX.new
rm tINDEX.wanted
else
mv tINDEX.wanted tINDEX.new
fi
}
# Sanity check all the lines of tINDEX.new. Even if more metadata lines
# are added by future versions of the server, this won't cause problems,
# since the only lines which appear in tINDEX.new are the ones which we
# specifically grepped out of ${TINDEXHASH}.
fetch_metadata_index_sanity () {
if grep -qvE '^[0-9A-Z.-]+\|[0-9a-f]{64}$' tINDEX.new; then
fetch_metadata_bogus " index"
return 1
fi
}
# Sanity check the metadata file $1.
fetch_metadata_sanity () {
# Some aliases to save space later: ${P} is a character which can
# appear in a path; ${M} is the four numeric metadata fields; and
# ${H} is a sha256 hash.
P="[-+./:=_[[:alnum:]]"
M="[0-9]+\|[0-9]+\|[0-9]+\|[0-9]+"
H="[0-9a-f]{64}"
# Check that the first four fields make sense.
if gunzip -c < files/$1.gz |
grep -qvE "^[a-z]+\|[0-9a-z]+\|${P}+\|[fdL-]\|"; then
fetch_metadata_bogus ""
return 1
fi
# Remove the first three fields.
gunzip -c < files/$1.gz |
cut -f 4- -d '|' > sanitycheck.tmp
# Sanity check entries with type 'f'
if grep -E '^f' sanitycheck.tmp |
grep -qvE "^f\|${M}\|${H}\|${P}*\$"; then
fetch_metadata_bogus ""
return 1
fi
# Sanity check entries with type 'd'
if grep -E '^d' sanitycheck.tmp |
grep -qvE "^d\|${M}\|\|\$"; then
fetch_metadata_bogus ""
return 1
fi
# Sanity check entries with type 'L'
if grep -E '^L' sanitycheck.tmp |
grep -qvE "^L\|${M}\|${P}*\|\$"; then
fetch_metadata_bogus ""
return 1
fi
# Sanity check entries with type '-'
if grep -E '^-' sanitycheck.tmp |
grep -qvE "^-\|\|\|\|\|\|"; then
fetch_metadata_bogus ""
return 1
fi
# Clean up
rm sanitycheck.tmp
}
# Fetch the metadata index and metadata files listed in $@,
# taking advantage of metadata patches where possible.
fetch_metadata () {
fetch_metadata_index || return 1
fetch_metadata_index_merge $@ || return 1
fetch_metadata_index_sanity || return 1
# Generate a list of wanted metadata patches
join -t '|' -o 1.2,2.2 tINDEX.present tINDEX.new |
fetch_make_patchlist > patchlist
if [ -s patchlist ]; then
# Attempt to fetch metadata patches
echo -n "Fetching `wc -l < patchlist | tr -d ' '` "
echo ${NDEBUG} "metadata patches.${DDSTATS}"
tr '|' '-' < patchlist |
lam -s "${FETCHDIR}/tp/" - -s ".gz" |
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
2>${STATSREDIR} | fetch_progress
echo "done."
# Attempt to apply metadata patches
echo -n "Applying metadata patches... "
tr '|' ' ' < patchlist |
while read X Y; do
if [ ! -f "${X}-${Y}.gz" ]; then continue; fi
gunzip -c < ${X}-${Y}.gz > diff
gunzip -c < files/${X}.gz > diff-OLD
# Figure out which lines are being added and removed
grep -E '^-' diff |
cut -c 2- |
while read PREFIX; do
look "${PREFIX}" diff-OLD
done |
sort > diff-rm
grep -E '^\+' diff |
cut -c 2- > diff-add
# Generate the new file
comm -23 diff-OLD diff-rm |
sort - diff-add > diff-NEW
if [ `${SHA256} -q diff-NEW` = ${Y} ]; then
mv diff-NEW files/${Y}
gzip -n files/${Y}
else
mv diff-NEW ${Y}.bad
fi
rm -f ${X}-${Y}.gz diff
rm -f diff-OLD diff-NEW diff-add diff-rm
done 2>${QUIETREDIR}
echo "done."
fi
# Update metadata without patches
cut -f 2 -d '|' < tINDEX.new |
while read Y; do
if [ ! -f "files/${Y}.gz" ]; then
echo ${Y};
fi
done |
sort -u > filelist
if [ -s filelist ]; then
echo -n "Fetching `wc -l < filelist | tr -d ' '` "
echo ${NDEBUG} "metadata files... "
lam -s "${FETCHDIR}/m/" - -s ".gz" < filelist |
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
2>${QUIETREDIR}
while read Y; do
if ! [ -f ${Y}.gz ]; then
echo "failed."
return 1
fi
if [ `gunzip -c < ${Y}.gz |
${SHA256} -q` = ${Y} ]; then
mv ${Y}.gz files/${Y}.gz
else
echo "metadata is corrupt."
return 1
fi
done < filelist
echo "done."
fi
# Sanity-check the metadata files.
cut -f 2 -d '|' tINDEX.new > filelist
while read X; do
fetch_metadata_sanity ${X} || return 1
done < filelist
# Remove files which are no longer needed
cut -f 2 -d '|' tINDEX.present |
sort > oldfiles
cut -f 2 -d '|' tINDEX.new |
sort |
comm -13 - oldfiles |
lam -s "files/" - -s ".gz" |
xargs rm -f
rm patchlist filelist oldfiles
rm ${TINDEXHASH}
# We're done!
mv tINDEX.new tINDEX.present
mv tag.new tag
return 0
}
# Extract a subset of a downloaded metadata file containing only the parts
# which are listed in COMPONENTS.
fetch_filter_metadata_components () {
METAHASH=`look "$1|" tINDEX.present | cut -f 2 -d '|'`
gunzip -c < files/${METAHASH}.gz > $1.all
# Fish out the lines belonging to components we care about.
for C in ${COMPONENTS}; do
look "`echo ${C} | tr '/' '|'`|" $1.all
done > $1
# Remove temporary file.
rm $1.all
}
# Generate a filtered version of the metadata file $1 from the downloaded
# file, by fishing out the lines corresponding to components we're trying
# to keep updated, and then removing lines corresponding to paths we want
# to ignore.
fetch_filter_metadata () {
# Fish out the lines belonging to components we care about.
fetch_filter_metadata_components $1
# Canonicalize directory names by removing any trailing / in
# order to avoid listing directories multiple times if they
# belong to multiple components. Turning "/" into "" doesn't
# matter, since we add a leading "/" when we use paths later.
cut -f 3- -d '|' $1 |
sed -e 's,/|d|,|d|,' |
sort -u > $1.tmp
# Figure out which lines to ignore and remove them.
for X in ${IGNOREPATHS}; do
grep -E "^${X}" $1.tmp
done |
sort -u |
comm -13 - $1.tmp > $1
# Remove temporary files.
rm $1.tmp
}
# Filter the metadata file $1 by adding lines with "/boot/$2"
# replaced by ${KERNELDIR} (which is `sysctl -n kern.bootfile` minus the
# trailing "/kernel"); and if "/boot/$2" does not exist, remove
# the original lines which start with that.
# Put another way: Deal with the fact that the FOO kernel is sometimes
# installed in /boot/FOO/ and is sometimes installed elsewhere.
fetch_filter_kernel_names () {
grep ^/boot/$2 $1 |
sed -e "s,/boot/$2,${KERNELDIR},g" |
sort - $1 > $1.tmp
mv $1.tmp $1
if ! [ -d /boot/$2 ]; then
grep -v ^/boot/$2 $1 > $1.tmp
mv $1.tmp $1
fi
}
# For all paths appearing in $1 or $3, inspect the system
# and generate $2 describing what is currently installed.
fetch_inspect_system () {
# No errors yet...
rm -f .err
# Tell the user why his disk is suddenly making lots of noise
echo -n "Inspecting system... "
# Generate list of files to inspect
cat $1 $3 |
cut -f 1 -d '|' |
sort -u > filelist
# Examine each file and output lines of the form
# /path/to/file|type|device-inum|user|group|perm|flags|value
# sorted by device and inode number.
while read F; do
# If the symlink/file/directory does not exist, record this.
if ! [ -e ${BASEDIR}/${F} ]; then
echo "${F}|-||||||"
continue
fi
if ! [ -r ${BASEDIR}/${F} ]; then
echo "Cannot read file: ${BASEDIR}/${F}" \
>/dev/stderr
touch .err
return 1
fi
# Otherwise, output an index line.
if [ -L ${BASEDIR}/${F} ]; then
echo -n "${F}|L|"
stat -n -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
readlink ${BASEDIR}/${F};
elif [ -f ${BASEDIR}/${F} ]; then
echo -n "${F}|f|"
stat -n -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
sha256 -q ${BASEDIR}/${F};
elif [ -d ${BASEDIR}/${F} ]; then
echo -n "${F}|d|"
stat -f '%d-%i|%u|%g|%Mp%Lp|%Of|' ${BASEDIR}/${F};
else
echo "Unknown file type: ${BASEDIR}/${F}" \
>/dev/stderr
touch .err
return 1
fi
done < filelist |
sort -k 3,3 -t '|' > $2.tmp
rm filelist
# Check if an error occured during system inspection
if [ -f .err ]; then
return 1
fi
# Convert to the form
# /path/to/file|type|user|group|perm|flags|value|hlink
# by resolving identical device and inode numbers into hard links.
cut -f 1,3 -d '|' $2.tmp |
sort -k 1,1 -t '|' |
sort -s -u -k 2,2 -t '|' |
join -1 2 -2 3 -t '|' - $2.tmp |
awk -F \| -v OFS=\| \
'{
if (($2 == $3) || ($4 == "-"))
print $3,$4,$5,$6,$7,$8,$9,""
else
print $3,$4,$5,$6,$7,$8,$9,$2
}' |
sort > $2
rm $2.tmp
# We're finished looking around
echo "done."
}
# For any paths matching ${MERGECHANGES}, compare $1 and $2 and find any
# files which differ; generate $3 containing these paths and the old hashes.
fetch_filter_mergechanges () {
# Pull out the paths and hashes of the files matching ${MERGECHANGES}.
for F in $1 $2; do
for X in ${MERGECHANGES}; do
grep -E "^${X}" ${F}
done |
cut -f 1,2,7 -d '|' |
sort > ${F}-values
done
# Any line in $2-values which doesn't appear in $1-values and is a
# file means that we should list the path in $3.
comm -13 $1-values $2-values |
fgrep '|f|' |
cut -f 1 -d '|' > $2-paths
# For each path, pull out one (and only one!) entry from $1-values.
# Note that we cannot distinguish which "old" version the user made
# changes to; but hopefully any changes which occur due to security
# updates will exist in both the "new" version and the version which
# the user has installed, so the merging will still work.
while read X; do
look "${X}|" $1-values |
head -1
done < $2-paths > $3
# Clean up
rm $1-values $2-values $2-paths
}
# For any paths matching ${UPDATEIFUNMODIFIED}, remove lines from $[123]
# which correspond to lines in $2 with hashes not matching $1 or $3, unless
# the paths are listed in $4. For entries in $2 marked "not present"
# (aka. type -), remove lines from $[123] unless there is a corresponding
# entry in $1.
fetch_filter_unmodified_notpresent () {
# Figure out which lines of $1 and $3 correspond to bits which
# should only be updated if they haven't changed, and fish out
# the (path, type, value) tuples.
# NOTE: We don't consider a file to be "modified" if it matches
# the hash from $3.
for X in ${UPDATEIFUNMODIFIED}; do
grep -E "^${X}" $1
grep -E "^${X}" $3
done |
cut -f 1,2,7 -d '|' |
sort > $1-values
# Do the same for $2.
for X in ${UPDATEIFUNMODIFIED}; do
grep -E "^${X}" $2
done |
cut -f 1,2,7 -d '|' |
sort > $2-values
# Any entry in $2-values which is not in $1-values corresponds to
# a path which we need to remove from $1, $2, and $3, unless it
# that path appears in $4.
comm -13 $1-values $2-values |
sort -t '|' -k 1,1 > mlines.tmp
cut -f 1 -d '|' $4 |
sort |
join -v 2 -t '|' - mlines.tmp |
sort > mlines
rm $1-values $2-values mlines.tmp
# Any lines in $2 which are not in $1 AND are "not present" lines
# also belong in mlines.
comm -13 $1 $2 |
cut -f 1,2,7 -d '|' |
fgrep '|-|' >> mlines
# Remove lines from $1, $2, and $3
for X in $1 $2 $3; do
sort -t '|' -k 1,1 ${X} > ${X}.tmp
cut -f 1 -d '|' < mlines |
sort |
join -v 2 -t '|' - ${X}.tmp |
sort > ${X}
rm ${X}.tmp
done
# Store a list of the modified files, for future reference
fgrep -v '|-|' mlines |
cut -f 1 -d '|' > modifiedfiles
rm mlines
}
# For each entry in $1 of type -, remove any corresponding
# entry from $2 if ${ALLOWADD} != "yes". Remove all entries
# of type - from $1.
fetch_filter_allowadd () {
cut -f 1,2 -d '|' < $1 |
fgrep '|-' |
cut -f 1 -d '|' > filesnotpresent
if [ ${ALLOWADD} != "yes" ]; then
sort < $2 |
join -v 1 -t '|' - filesnotpresent |
sort > $2.tmp
mv $2.tmp $2
fi
sort < $1 |
join -v 1 -t '|' - filesnotpresent |
sort > $1.tmp
mv $1.tmp $1
rm filesnotpresent
}
# If ${ALLOWDELETE} != "yes", then remove any entries from $1
# which don't correspond to entries in $2.
fetch_filter_allowdelete () {
# Produce a lists ${PATH}|${TYPE}
for X in $1 $2; do
cut -f 1-2 -d '|' < ${X} |
sort -u > ${X}.nodes
done
# Figure out which lines need to be removed from $1.
if [ ${ALLOWDELETE} != "yes" ]; then
comm -23 $1.nodes $2.nodes > $1.badnodes
else
: > $1.badnodes
fi
# Remove the relevant lines from $1
while read X; do
look "${X}|" $1
done < $1.badnodes |
comm -13 - $1 > $1.tmp
mv $1.tmp $1
rm $1.badnodes $1.nodes $2.nodes
}
# If ${KEEPMODIFIEDMETADATA} == "yes", then for each entry in $2
# with metadata not matching any entry in $1, replace the corresponding
# line of $3 with one having the same metadata as the entry in $2.
fetch_filter_modified_metadata () {
# Fish out the metadata from $1 and $2
for X in $1 $2; do
cut -f 1-6 -d '|' < ${X} > ${X}.metadata
done
# Find the metadata we need to keep
if [ ${KEEPMODIFIEDMETADATA} = "yes" ]; then
comm -13 $1.metadata $2.metadata > keepmeta
else
: > keepmeta
fi
# Extract the lines which we need to remove from $3, and
# construct the lines which we need to add to $3.
: > $3.remove
: > $3.add
while read LINE; do
NODE=`echo "${LINE}" | cut -f 1-2 -d '|'`
look "${NODE}|" $3 >> $3.remove
look "${NODE}|" $3 |
cut -f 7- -d '|' |
lam -s "${LINE}|" - >> $3.add
done < keepmeta
# Remove the specified lines and add the new lines.
sort $3.remove |
comm -13 - $3 |
sort -u - $3.add > $3.tmp
mv $3.tmp $3
rm keepmeta $1.metadata $2.metadata $3.add $3.remove
}
# Remove lines from $1 and $2 which are identical;
# no need to update a file if it isn't changing.
fetch_filter_uptodate () {
comm -23 $1 $2 > $1.tmp
comm -13 $1 $2 > $2.tmp
mv $1.tmp $1
mv $2.tmp $2
}
# Fetch any "clean" old versions of files we need for merging changes.
fetch_files_premerge () {
# We only need to do anything if $1 is non-empty.
if [ -s $1 ]; then
# Tell the user what we're doing
echo -n "Fetching files from ${OLDRELNUM} for merging... "
# List of files wanted
fgrep '|f|' < $1 |
cut -f 3 -d '|' |
sort -u > files.wanted
# Only fetch the files we don't already have
while read Y; do
if [ ! -f "files/${Y}.gz" ]; then
echo ${Y};
fi
done < files.wanted > filelist
# Actually fetch them
lam -s "${OLDFETCHDIR}/f/" - -s ".gz" < filelist |
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
2>${QUIETREDIR}
# Make sure we got them all, and move them into /files/
while read Y; do
if ! [ -f ${Y}.gz ]; then
echo "failed."
return 1
fi
if [ `gunzip -c < ${Y}.gz |
${SHA256} -q` = ${Y} ]; then
mv ${Y}.gz files/${Y}.gz
else
echo "${Y} has incorrect hash."
return 1
fi
done < filelist
echo "done."
# Clean up
rm filelist files.wanted
fi
}
# Prepare to fetch files: Generate a list of the files we need,
# copy the unmodified files we have into /files/, and generate
# a list of patches to download.
fetch_files_prepare () {
# Tell the user why his disk is suddenly making lots of noise
echo -n "Preparing to download files... "
# Reduce indices to ${PATH}|${HASH} pairs
for X in $1 $2 $3; do
cut -f 1,2,7 -d '|' < ${X} |
fgrep '|f|' |
cut -f 1,3 -d '|' |
sort > ${X}.hashes
done
# List of files wanted
cut -f 2 -d '|' < $3.hashes |
sort -u |
while read HASH; do
if ! [ -f files/${HASH}.gz ]; then
echo ${HASH}
fi
done > files.wanted
# Generate a list of unmodified files
comm -12 $1.hashes $2.hashes |
sort -k 1,1 -t '|' > unmodified.files
# Copy all files into /files/. We only need the unmodified files
# for use in patching; but we'll want all of them if the user asks
# to rollback the updates later.
while read LINE; do
F=`echo "${LINE}" | cut -f 1 -d '|'`
HASH=`echo "${LINE}" | cut -f 2 -d '|'`
# Skip files we already have.
if [ -f files/${HASH}.gz ]; then
continue
fi
# Make sure the file hasn't changed.
cp "${BASEDIR}/${F}" tmpfile
if [ `sha256 -q tmpfile` != ${HASH} ]; then
echo
echo "File changed while FreeBSD Update running: ${F}"
return 1
fi
# Place the file into storage.
gzip -c < tmpfile > files/${HASH}.gz
rm tmpfile
done < $2.hashes
# Produce a list of patches to download
sort -k 1,1 -t '|' $3.hashes |
join -t '|' -o 2.2,1.2 - unmodified.files |
fetch_make_patchlist > patchlist
# Garbage collect
rm unmodified.files $1.hashes $2.hashes $3.hashes
# We don't need the list of possible old files any more.
rm $1
# We're finished making noise
echo "done."
}
# Fetch files.
fetch_files () {
# Attempt to fetch patches
if [ -s patchlist ]; then
echo -n "Fetching `wc -l < patchlist | tr -d ' '` "
echo ${NDEBUG} "patches.${DDSTATS}"
tr '|' '-' < patchlist |
lam -s "${PATCHDIR}/" - |
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
2>${STATSREDIR} | fetch_progress
echo "done."
# Attempt to apply patches
echo -n "Applying patches... "
tr '|' ' ' < patchlist |
while read X Y; do
if [ ! -f "${X}-${Y}" ]; then continue; fi
gunzip -c < files/${X}.gz > OLD
bspatch OLD NEW ${X}-${Y}
if [ `${SHA256} -q NEW` = ${Y} ]; then
mv NEW files/${Y}
gzip -n files/${Y}
fi
rm -f diff OLD NEW ${X}-${Y}
done 2>${QUIETREDIR}
echo "done."
fi
# Download files which couldn't be generate via patching
while read Y; do
if [ ! -f "files/${Y}.gz" ]; then
echo ${Y};
fi
done < files.wanted > filelist
if [ -s filelist ]; then
echo -n "Fetching `wc -l < filelist | tr -d ' '` "
echo ${NDEBUG} "files... "
lam -s "${FETCHDIR}/f/" - -s ".gz" < filelist |
xargs ${XARGST} ${PHTTPGET} ${SERVERNAME} \
2>${QUIETREDIR}
while read Y; do
if ! [ -f ${Y}.gz ]; then
echo "failed."
return 1
fi
if [ `gunzip -c < ${Y}.gz |
${SHA256} -q` = ${Y} ]; then
mv ${Y}.gz files/${Y}.gz
else
echo "${Y} has incorrect hash."
return 1
fi
done < filelist
echo "done."
fi
# Clean up
rm files.wanted filelist patchlist
}
# Create and populate install manifest directory; and report what updates
# are available.
fetch_create_manifest () {
# If we have an existing install manifest, nuke it.
if [ -L "${BDHASH}-install" ]; then
rm -r ${BDHASH}-install/
rm ${BDHASH}-install
fi
# Report to the user if any updates were avoided due to local changes
if [ -s modifiedfiles ]; then
echo
echo -n "The following files are affected by updates, "
echo "but no changes have"
echo -n "been downloaded because the files have been "
echo "modified locally:"
cat modifiedfiles
fi | more
rm modifiedfiles
# If no files will be updated, tell the user and exit
if ! [ -s INDEX-PRESENT ] &&
! [ -s INDEX-NEW ]; then
rm INDEX-PRESENT INDEX-NEW
echo
echo -n "No updates needed to update system to "
echo "${RELNUM}-p${RELPATCHNUM}."
return
fi
# Divide files into (a) removed files, (b) added files, and
# (c) updated files.
cut -f 1 -d '|' < INDEX-PRESENT |
sort > INDEX-PRESENT.flist
cut -f 1 -d '|' < INDEX-NEW |
sort > INDEX-NEW.flist
comm -23 INDEX-PRESENT.flist INDEX-NEW.flist > files.removed
comm -13 INDEX-PRESENT.flist INDEX-NEW.flist > files.added
comm -12 INDEX-PRESENT.flist INDEX-NEW.flist > files.updated
rm INDEX-PRESENT.flist INDEX-NEW.flist
# Report removed files, if any
if [ -s files.removed ]; then
echo
echo -n "The following files will be removed "
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
cat files.removed
fi | more
rm files.removed
# Report added files, if any
if [ -s files.added ]; then
echo
echo -n "The following files will be added "
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
cat files.added
fi | more
rm files.added
# Report updated files, if any
if [ -s files.updated ]; then
echo
echo -n "The following files will be updated "
echo "as part of updating to ${RELNUM}-p${RELPATCHNUM}:"
cat files.updated
fi | more
rm files.updated
# Create a directory for the install manifest.
MDIR=`mktemp -d install.XXXXXX` || return 1
# Populate it
mv INDEX-PRESENT ${MDIR}/INDEX-OLD
mv INDEX-NEW ${MDIR}/INDEX-NEW
# Link it into place
ln -s ${MDIR} ${BDHASH}-install
}
# Warn about any upcoming EoL
fetch_warn_eol () {
# What's the current time?
NOWTIME=`date "+%s"`
# When did we last warn about the EoL date?
if [ -f lasteolwarn ]; then
LASTWARN=`cat lasteolwarn`
else
LASTWARN=`expr ${NOWTIME} - 63072000`
fi
# If the EoL time is past, warn.
if [ ${EOLTIME} -lt ${NOWTIME} ]; then
echo
cat <<-EOF
WARNING: `uname -sr` HAS PASSED ITS END-OF-LIFE DATE.
Any security issues discovered after `date -r ${EOLTIME}`
will not have been corrected.
EOF
return 1
fi
# Figure out how long it has been since we last warned about the
# upcoming EoL, and how much longer we have left.
SINCEWARN=`expr ${NOWTIME} - ${LASTWARN}`
TIMELEFT=`expr ${EOLTIME} - ${NOWTIME}`
# Don't warn if the EoL is more than 3 months away
if [ ${TIMELEFT} -gt 7884000 ]; then
return 0
fi
# Don't warn if the time remaining is more than 3 times the time
# since the last warning.
if [ ${TIMELEFT} -gt `expr ${SINCEWARN} \* 3` ]; then
return 0
fi
# Figure out what time units to use.
if [ ${TIMELEFT} -lt 604800 ]; then
UNIT="day"
SIZE=86400
elif [ ${TIMELEFT} -lt 2678400 ]; then
UNIT="week"
SIZE=604800
else
UNIT="month"
SIZE=2678400
fi
# Compute the right number of units
NUM=`expr ${TIMELEFT} / ${SIZE}`
if [ ${NUM} != 1 ]; then
UNIT="${UNIT}s"
fi
# Print the warning
echo
cat <<-EOF
WARNING: `uname -sr` is approaching its End-of-Life date.
It is strongly recommended that you upgrade to a newer
release within the next ${NUM} ${UNIT}.
EOF
# Update the stored time of last warning
echo ${NOWTIME} > lasteolwarn
}
# Do the actual work involved in "fetch" / "cron".
fetch_run () {
workdir_init || return 1
# Prepare the mirror list.
fetch_pick_server_init && fetch_pick_server
# Try to fetch the public key until we run out of servers.
while ! fetch_key; do
fetch_pick_server || return 1
done
# Try to fetch the metadata index signature ("tag") until we run
# out of available servers; and sanity check the downloaded tag.
while ! fetch_tag; do
fetch_pick_server || return 1
done
fetch_tagsanity || return 1
# Fetch the latest INDEX-NEW and INDEX-OLD files.
fetch_metadata INDEX-NEW INDEX-OLD || return 1
# Generate filtered INDEX-NEW and INDEX-OLD files containing only
# the lines which (a) belong to components we care about, and (b)
# don't correspond to paths we're explicitly ignoring.
fetch_filter_metadata INDEX-NEW || return 1
fetch_filter_metadata INDEX-OLD || return 1
# Translate /boot/${KERNCONF} into ${KERNELDIR}
fetch_filter_kernel_names INDEX-NEW ${KERNCONF}
fetch_filter_kernel_names INDEX-OLD ${KERNCONF}
# For all paths appearing in INDEX-OLD or INDEX-NEW, inspect the
# system and generate an INDEX-PRESENT file.
fetch_inspect_system INDEX-OLD INDEX-PRESENT INDEX-NEW || return 1
# Based on ${UPDATEIFUNMODIFIED}, remove lines from INDEX-* which
# correspond to lines in INDEX-PRESENT with hashes not appearing
# in INDEX-OLD or INDEX-NEW. Also remove lines where the entry in
# INDEX-PRESENT has type - and there isn't a corresponding entry in
# INDEX-OLD with type -.
fetch_filter_unmodified_notpresent \
INDEX-OLD INDEX-PRESENT INDEX-NEW /dev/null
# For each entry in INDEX-PRESENT of type -, remove any corresponding
# entry from INDEX-NEW if ${ALLOWADD} != "yes". Remove all entries
# of type - from INDEX-PRESENT.
fetch_filter_allowadd INDEX-PRESENT INDEX-NEW
# If ${ALLOWDELETE} != "yes", then remove any entries from
# INDEX-PRESENT which don't correspond to entries in INDEX-NEW.
fetch_filter_allowdelete INDEX-PRESENT INDEX-NEW
# If ${KEEPMODIFIEDMETADATA} == "yes", then for each entry in
# INDEX-PRESENT with metadata not matching any entry in INDEX-OLD,
# replace the corresponding line of INDEX-NEW with one having the
# same metadata as the entry in INDEX-PRESENT.
fetch_filter_modified_metadata INDEX-OLD INDEX-PRESENT INDEX-NEW
# Remove lines from INDEX-PRESENT and INDEX-NEW which are identical;
# no need to update a file if it isn't changing.
fetch_filter_uptodate INDEX-PRESENT INDEX-NEW
# Prepare to fetch files: Generate a list of the files we need,
# copy the unmodified files we have into /files/, and generate
# a list of patches to download.
fetch_files_prepare INDEX-OLD INDEX-PRESENT INDEX-NEW || return 1
# Fetch files.
fetch_files || return 1
# Create and populate install manifest directory; and report what
# updates are available.
fetch_create_manifest || return 1
# Warn about any upcoming EoL
fetch_warn_eol || return 1
}
# If StrictComponents is not "yes", generate a new components list
# with only the components which appear to be installed.
upgrade_guess_components () {
if [ "${STRICTCOMPONENTS}" = "no" ]; then
# Generate filtered INDEX-ALL with only the components listed
# in COMPONENTS.
fetch_filter_metadata_components $1 || return 1
# Tell the user why his disk is suddenly making lots of noise
echo -n "Inspecting system... "
# Look at the files on disk, and assume that a component is
# supposed to be present if it is more than half-present.
cut -f 1-3 -d '|' < INDEX-ALL |
tr '|' ' ' |
while read C S F; do
if [ -e ${BASEDIR}/${F} ]; then
echo "+ ${C}|${S}"
fi
echo "= ${C}|${S}"
done |
sort |
uniq -c |
sed -E 's,^ +,,' > compfreq
grep ' = ' compfreq |
cut -f 1,3 -d ' ' |
sort -k 2,2 -t ' ' > compfreq.total
grep ' + ' compfreq |
cut -f 1,3 -d ' ' |
sort -k 2,2 -t ' ' > compfreq.present
join -t ' ' -1 2 -2 2 compfreq.present compfreq.total |
while read S P T; do
if [ ${P} -gt `expr ${T} / 2` ]; then
echo ${S}
fi
done > comp.present
cut -f 2 -d ' ' < compfreq.total > comp.total
rm INDEX-ALL compfreq compfreq.total compfreq.present
# We're done making noise.
echo "done."
# Sometimes the kernel isn't installed where INDEX-ALL
# thinks that it should be: In particular, it is often in
# /boot/kernel instead of /boot/GENERIC or /boot/SMP. To
# deal with this, if "kernel|X" is listed in comp.total
# (i.e., is a component which would be upgraded if it is
# found to be present) we will add it to comp.present.
# If "kernel|<anything>" is in comp.total but "kernel|X" is
# not, we print a warning -- the user is running a kernel
# which isn't part of the release.
KCOMP=`echo ${KERNCONF} | tr 'A-Z' 'a-z'`
grep -E "^kernel\|${KCOMP}\$" comp.total >> comp.present
if grep -qE "^kernel\|" comp.total &&
! grep -qE "^kernel\|${KCOMP}\$" comp.total; then
cat <<-EOF
WARNING: This system is running a "${KCOMP}" kernel, which is not a
kernel configuration distributed as part of FreeBSD ${RELNUM}.
This kernel will not be updated: you MUST update the kernel manually
before running "$0 install".
EOF
fi
# Re-sort the list of installed components and generate
# the list of non-installed components.
sort -u < comp.present > comp.present.tmp
mv comp.present.tmp comp.present
comm -13 comp.present comp.total > comp.absent
# Ask the user to confirm that what we have is correct. To
# reduce user confusion, translate "X|Y" back to "X/Y" (as
# subcomponents must be listed in the configuration file).
echo
echo -n "The following components of FreeBSD "
echo "seem to be installed:"
tr '|' '/' < comp.present |
fmt -72
echo
echo -n "The following components of FreeBSD "
echo "do not seem to be installed:"
tr '|' '/' < comp.absent |
fmt -72
echo
continuep || return 1
echo
# Suck the generated list of components into ${COMPONENTS}.
# Note that comp.present.tmp is used due to issues with
# pipelines and setting variables.
COMPONENTS=""
tr '|' '/' < comp.present > comp.present.tmp
while read C; do
COMPONENTS="${COMPONENTS} ${C}"
done < comp.present.tmp
# Delete temporary files
rm comp.present comp.present.tmp comp.absent comp.total
fi
}
# If StrictComponents is not "yes", COMPONENTS contains an entry
# corresponding to the currently running kernel, and said kernel
# does not exist in the new release, add "kernel/generic" to the
# list of components.
upgrade_guess_new_kernel () {
if [ "${STRICTCOMPONENTS}" = "no" ]; then
# Grab the unfiltered metadata file.
METAHASH=`look "$1|" tINDEX.present | cut -f 2 -d '|'`
gunzip -c < files/${METAHASH}.gz > $1.all
# If "kernel/${KCOMP}" is in ${COMPONENTS} and that component
# isn't in $1.all, we need to add kernel/generic.
for C in ${COMPONENTS}; do
if [ ${C} = "kernel/${KCOMP}" ] &&
! grep -qE "^kernel\|${KCOMP}\|" $1.all; then
COMPONENTS="${COMPONENTS} kernel/generic"
NKERNCONF="GENERIC"
cat <<-EOF
WARNING: This system is running a "${KCOMP}" kernel, which is not a
kernel configuration distributed as part of FreeBSD ${RELNUM}.
As part of upgrading to FreeBSD ${RELNUM}, this kernel will be
replaced with a "generic" kernel.
EOF
continuep || return 1
fi
done
# Don't need this any more...
rm $1.all
fi
}
# Convert INDEX-OLD (last release) and INDEX-ALL (new release) into
# INDEX-OLD and INDEX-NEW files (in the sense of normal upgrades).
upgrade_oldall_to_oldnew () {
# For each ${F}|... which appears in INDEX-ALL but does not appear
# in INDEX-OLD, add ${F}|-|||||| to INDEX-OLD.
cut -f 1 -d '|' < $1 |
sort -u > $1.paths
cut -f 1 -d '|' < $2 |
sort -u |
comm -13 $1.paths - |
lam - -s "|-||||||" |
sort - $1 > $1.tmp
mv $1.tmp $1
# Remove lines from INDEX-OLD which also appear in INDEX-ALL
comm -23 $1 $2 > $1.tmp
mv $1.tmp $1
# Remove lines from INDEX-ALL which have a file name not appearing
# anywhere in INDEX-OLD (since these must be files which haven't
# changed -- if they were new, there would be an entry of type "-").
cut -f 1 -d '|' < $1 |
sort -u > $1.paths
sort -k 1,1 -t '|' < $2 |
join -t '|' - $1.paths |
sort > $2.tmp
rm $1.paths
mv $2.tmp $2
# Rename INDEX-ALL to INDEX-NEW.
mv $2 $3
}
# From the list of "old" files in $1, merge changes in $2 with those in $3,
# and update $3 to reflect the hashes of merged files.
upgrade_merge () {
# We only need to do anything if $1 is non-empty.
if [ -s $1 ]; then
cut -f 1 -d '|' $1 |
sort > $1-paths
# Create staging area for merging files
rm -rf merge/
while read F; do
D=`dirname ${F}`
mkdir -p merge/old/${D}
mkdir -p merge/${OLDRELNUM}/${D}
mkdir -p merge/${RELNUM}/${D}
mkdir -p merge/new/${D}
done < $1-paths
# Copy in files
while read F; do
# Currently installed file
V=`look "${F}|" $2 | cut -f 7 -d '|'`
gunzip < files/${V}.gz > merge/old/${F}
# Old release
if look "${F}|" $1 | fgrep -q "|f|"; then
V=`look "${F}|" $1 | cut -f 3 -d '|'`
gunzip < files/${V}.gz \
> merge/${OLDRELNUM}/${F}
fi
# New release
if look "${F}|" $3 | cut -f 1,2,7 -d '|' |
fgrep -q "|f|"; then
V=`look "${F}|" $3 | cut -f 7 -d '|'`
gunzip < files/${V}.gz \
> merge/${RELNUM}/${F}
fi
done < $1-paths
# Attempt to automatically merge changes
echo -n "Attempting to automatically merge "
echo -n "changes in files..."
: > failed.merges
while read F; do
# If the file doesn't exist in the new release,
# the result of "merging changes" is having the file
# not exist.
if ! [ -f merge/${RELNUM}/${F} ]; then
continue
fi
# If the file didn't exist in the old release, we're
# going to throw away the existing file and hope that
# the version from the new release is what we want.
if ! [ -f merge/${OLDRELNUM}/${F} ]; then
cp merge/${RELNUM}/${F} merge/new/${F}
continue
fi
# Some files need special treatment.
case ${F} in
/etc/spwd.db | /etc/pwd.db | /etc/login.conf.db)
# Don't merge these -- we're rebuild them
# after updates are installed.
cp merge/old/${F} merge/new/${F}
;;
*)
if ! merge -p -L "current version" \
-L "${OLDRELNUM}" -L "${RELNUM}" \
merge/old/${F} \
merge/${OLDRELNUM}/${F} \
merge/${RELNUM}/${F} \
> merge/new/${F} 2>/dev/null; then
echo ${F} >> failed.merges
fi
;;
esac
done < $1-paths
echo " done."
# Ask the user to handle any files which didn't merge.
while read F; do
cat <<-EOF
The following file could not be merged automatically: ${F}
Press Enter to edit this file in ${EDITOR} and resolve the conflicts
manually...
EOF
read dummy </dev/tty
${EDITOR} `pwd`/merge/new/${F} < /dev/tty
done < failed.merges
rm failed.merges
# Ask the user to confirm that he likes how the result
# of merging files.
while read F; do
# Skip files which haven't changed.
if [ -f merge/new/${F} ] &&
cmp -s merge/old/${F} merge/new/${F}; then
continue
fi
# Warn about files which are ceasing to exist.
if ! [ -f merge/new/${F} ]; then
cat <<-EOF
The following file will be removed, as it no longer exists in
FreeBSD ${RELNUM}: ${F}
EOF
continuep < /dev/tty || return 1
continue
fi
# Print changes for the user's approval.
cat <<-EOF
The following changes, which occurred between FreeBSD ${OLDRELNUM} and
FreeBSD ${RELNUM} have been merged into ${F}:
EOF
diff -U 5 -L "current version" -L "new version" \
merge/old/${F} merge/new/${F} || true
continuep < /dev/tty || return 1
done < $1-paths
# Store merged files.
while read F; do
V=`${SHA256} -q merge/new/${F}`
if [ -f merge/new/${F} ]; then
gzip -c < merge/new/${F} > files/${V}.gz
echo "${F}|${V}"
fi
done < $1-paths > newhashes
# Pull lines out from $3 which need to be updated to
# reflect merged files.
while read F; do
look "${F}|" $3
done < $1-paths > $3-oldlines
# Update lines to reflect merged files
join -t '|' -o 1.1,1.2,1.3,1.4,1.5,1.6,2.2,1.8 \
$3-oldlines newhashes > $3-newlines
# Remove old lines from $3 and add new lines.
sort $3-oldlines |
comm -13 - $3 |
sort - $3-newlines > $3.tmp
mv $3.tmp $3
# Clean up
rm $1-paths newhashes $3-oldlines $3-newlines
rm -rf merge/
fi
# We're done with merging files.
rm $1
}
# Do the work involved in fetching upgrades to a new release
upgrade_run () {
workdir_init || return 1
# Prepare the mirror list.
fetch_pick_server_init && fetch_pick_server
# Try to fetch the public key until we run out of servers.
while ! fetch_key; do
fetch_pick_server || return 1
done
# Try to fetch the metadata index signature ("tag") until we run
# out of available servers; and sanity check the downloaded tag.
while ! fetch_tag; do
fetch_pick_server || return 1
done
fetch_tagsanity || return 1
# Fetch the INDEX-OLD and INDEX-ALL.
fetch_metadata INDEX-OLD INDEX-ALL || return 1
# If StrictComponents is not "yes", generate a new components list
# with only the components which appear to be installed.
upgrade_guess_components INDEX-ALL || return 1
# Generate filtered INDEX-OLD and INDEX-ALL files containing only
# the components we want and without anything marked as "Ignore".
fetch_filter_metadata INDEX-OLD || return 1
fetch_filter_metadata INDEX-ALL || return 1
# Merge the INDEX-OLD and INDEX-ALL files into INDEX-OLD.
sort INDEX-OLD INDEX-ALL > INDEX-OLD.tmp
mv INDEX-OLD.tmp INDEX-OLD
rm INDEX-ALL
# Adjust variables for fetching files from the new release.
OLDRELNUM=${RELNUM}
RELNUM=${TARGETRELEASE}
OLDFETCHDIR=${FETCHDIR}
FETCHDIR=${RELNUM}/${ARCH}
# Try to fetch the NEW metadata index signature ("tag") until we run
# out of available servers; and sanity check the downloaded tag.
while ! fetch_tag; do
fetch_pick_server || return 1
done
# Fetch the new INDEX-ALL.
fetch_metadata INDEX-ALL || return 1
# If StrictComponents is not "yes", COMPONENTS contains an entry
# corresponding to the currently running kernel, and said kernel
# does not exist in the new release, add "kernel/generic" to the
# list of components.
upgrade_guess_new_kernel INDEX-ALL || return 1
# Filter INDEX-ALL to contain only the components we want and without
# anything marked as "Ignore".
fetch_filter_metadata INDEX-ALL || return 1
# Convert INDEX-OLD (last release) and INDEX-ALL (new release) into
# INDEX-OLD and INDEX-NEW files (in the sense of normal upgrades).
upgrade_oldall_to_oldnew INDEX-OLD INDEX-ALL INDEX-NEW
# Translate /boot/${KERNCONF} or /boot/${NKERNCONF} into ${KERNELDIR}
fetch_filter_kernel_names INDEX-NEW ${NKERNCONF}
fetch_filter_kernel_names INDEX-OLD ${KERNCONF}
# For all paths appearing in INDEX-OLD or INDEX-NEW, inspect the
# system and generate an INDEX-PRESENT file.
fetch_inspect_system INDEX-OLD INDEX-PRESENT INDEX-NEW || return 1
# Based on ${MERGECHANGES}, generate a file tomerge-old with the
# paths and hashes of old versions of files to merge.
fetch_filter_mergechanges INDEX-OLD INDEX-PRESENT tomerge-old
# Based on ${UPDATEIFUNMODIFIED}, remove lines from INDEX-* which
# correspond to lines in INDEX-PRESENT with hashes not appearing
# in INDEX-OLD or INDEX-NEW. Also remove lines where the entry in
# INDEX-PRESENT has type - and there isn't a corresponding entry in
# INDEX-OLD with type -.
fetch_filter_unmodified_notpresent \
INDEX-OLD INDEX-PRESENT INDEX-NEW tomerge-old
# For each entry in INDEX-PRESENT of type -, remove any corresponding
# entry from INDEX-NEW if ${ALLOWADD} != "yes". Remove all entries
# of type - from INDEX-PRESENT.
fetch_filter_allowadd INDEX-PRESENT INDEX-NEW
# If ${ALLOWDELETE} != "yes", then remove any entries from
# INDEX-PRESENT which don't correspond to entries in INDEX-NEW.
fetch_filter_allowdelete INDEX-PRESENT INDEX-NEW
# If ${KEEPMODIFIEDMETADATA} == "yes", then for each entry in
# INDEX-PRESENT with metadata not matching any entry in INDEX-OLD,
# replace the corresponding line of INDEX-NEW with one having the
# same metadata as the entry in INDEX-PRESENT.
fetch_filter_modified_metadata INDEX-OLD INDEX-PRESENT INDEX-NEW
# Remove lines from INDEX-PRESENT and INDEX-NEW which are identical;
# no need to update a file if it isn't changing.
fetch_filter_uptodate INDEX-PRESENT INDEX-NEW
# Fetch "clean" files from the old release for merging changes.
fetch_files_premerge tomerge-old
# Prepare to fetch files: Generate a list of the files we need,
# copy the unmodified files we have into /files/, and generate
# a list of patches to download.
fetch_files_prepare INDEX-OLD INDEX-PRESENT INDEX-NEW || return 1
# Fetch patches from to-${RELNUM}/${ARCH}/bp/
PATCHDIR=to-${RELNUM}/${ARCH}/bp
fetch_files || return 1
# Merge configuration file changes.
upgrade_merge tomerge-old INDEX-PRESENT INDEX-NEW || return 1
# Create and populate install manifest directory; and report what
# updates are available.
fetch_create_manifest || return 1
# Leave a note behind to tell the "install" command that the kernel
# needs to be installed before the world.
touch ${BDHASH}-install/kernelfirst
}
# Make sure that all the file hashes mentioned in $@ have corresponding
# gzipped files stored in /files/.
install_verify () {
# Generate a list of hashes
cat $@ |
cut -f 2,7 -d '|' |
grep -E '^f' |
cut -f 2 -d '|' |
sort -u > filelist
# Make sure all the hashes exist
while read HASH; do
if ! [ -f files/${HASH}.gz ]; then
echo -n "Update files missing -- "
echo "this should never happen."
echo "Re-run '$0 fetch'."
return 1
fi
done < filelist
# Clean up
rm filelist
}
# Remove the system immutable flag from files
install_unschg () {
# Generate file list
cat $@ |
cut -f 1 -d '|' > filelist
# Remove flags
while read F; do
if ! [ -e ${BASEDIR}/${F} ]; then
continue
fi
chflags noschg ${BASEDIR}/${F} || return 1
done < filelist
# Clean up
rm filelist
}
# Install new files
install_from_index () {
# First pass: Do everything apart from setting file flags. We
# can't set flags yet, because schg inhibits hard linking.
sort -k 1,1 -t '|' $1 |
tr '|' ' ' |
while read FPATH TYPE OWNER GROUP PERM FLAGS HASH LINK; do
case ${TYPE} in
d)
# Create a directory
install -d -o ${OWNER} -g ${GROUP} \
-m ${PERM} ${BASEDIR}/${FPATH}
;;
f)
if [ -z "${LINK}" ]; then
# Create a file, without setting flags.
gunzip < files/${HASH}.gz > ${HASH}
install -S -o ${OWNER} -g ${GROUP} \
-m ${PERM} ${HASH} ${BASEDIR}/${FPATH}
rm ${HASH}
else
# Create a hard link.
ln -f ${BASEDIR}/${LINK} ${BASEDIR}/${FPATH}
fi
;;
L)
# Create a symlink
ln -sfh ${HASH} ${BASEDIR}/${FPATH}
;;
esac
done
# Perform a second pass, adding file flags.
tr '|' ' ' < $1 |
while read FPATH TYPE OWNER GROUP PERM FLAGS HASH LINK; do
if [ ${TYPE} = "f" ] &&
! [ ${FLAGS} = "0" ]; then
chflags ${FLAGS} ${BASEDIR}/${FPATH}
fi
done
}
# Remove files which we want to delete
install_delete () {
# Generate list of new files
cut -f 1 -d '|' < $2 |
sort > newfiles
# Generate subindex of old files we want to nuke
sort -k 1,1 -t '|' $1 |
join -t '|' -v 1 - newfiles |
sort -r -k 1,1 -t '|' |
cut -f 1,2 -d '|' |
tr '|' ' ' > killfiles
# Remove the offending bits
while read FPATH TYPE; do
case ${TYPE} in
d)
rmdir ${BASEDIR}/${FPATH}
;;
f)
rm ${BASEDIR}/${FPATH}
;;
L)
rm ${BASEDIR}/${FPATH}
;;
esac
done < killfiles
# Clean up
rm newfiles killfiles
}
# Install new files, delete old files, and update linker.hints
install_files () {
# If we haven't already dealt with the kernel, deal with it.
if ! [ -f $1/kerneldone ]; then
grep -E '^/boot/' $1/INDEX-OLD > INDEX-OLD
grep -E '^/boot/' $1/INDEX-NEW > INDEX-NEW
# Install new files
install_from_index INDEX-NEW || return 1
# Remove files which need to be deleted
install_delete INDEX-OLD INDEX-NEW || return 1
# Update linker.hints if necessary
if [ -s INDEX-OLD -o -s INDEX-NEW ]; then
kldxref -R /boot/ 2>/dev/null
fi
# We've finished updating the kernel.
touch $1/kerneldone
# Do we need to ask for a reboot now?
if [ -f $1/kernelfirst ] &&
[ -s INDEX-OLD -o -s INDEX-NEW ]; then
cat <<-EOF
Kernel updates have been installed. Please reboot and run
"$0 install" again to finish installing updates.
EOF
exit 0
fi
fi
# If we haven't already dealt with the world, deal with it.
if ! [ -f $1/worlddone ]; then
# Install new shared libraries next
grep -vE '^/boot/' $1/INDEX-NEW |
grep -E '/lib/.*\.so\.[0-9]+' > INDEX-NEW
install_from_index INDEX-NEW || return 1
# Deal with everything else
grep -vE '^/boot/' $1/INDEX-OLD |
grep -vE '/lib/.*\.so\.[0-9]+' > INDEX-OLD
grep -vE '^/boot/' $1/INDEX-NEW |
grep -vE '/lib/.*\.so\.[0-9]+' > INDEX-NEW
install_from_index INDEX-NEW || return 1
install_delete INDEX-OLD INDEX-NEW || return 1
# Rebuild /etc/spwd.db and /etc/pwd.db if necessary.
if [ /etc/master.passwd -nt /etc/spwd.db ] ||
[ /etc/master.passwd -nt /etc/pwd.db ]; then
pwd_mkdb /etc/master.passwd
fi
# Rebuild /etc/login.conf.db if necessary.
if [ /etc/login.conf -nt /etc/login.conf.db ]; then
cap_mkdb /etc/login.conf
fi
# We've finished installing the world and deleting old files
# which are not shared libraries.
touch $1/worlddone
# Do we need to ask the user to portupgrade now?
grep -vE '^/boot/' $1/INDEX-NEW |
grep -E '/lib/.*\.so\.[0-9]+' |
cut -f 1 -d '|' |
sort > newfiles
if grep -vE '^/boot/' $1/INDEX-OLD |
grep -E '/lib/.*\.so\.[0-9]+' |
cut -f 1 -d '|' |
sort |
join -v 1 - newfiles |
grep -q .; then
cat <<-EOF
Completing this upgrade requires removing old shared object files.
Please rebuild all installed 3rd party software (e.g., programs
installed from the ports tree) and then run "$0 install"
again to finish installing updates.
EOF
rm newfiles
exit 0
fi
rm newfiles
fi
# Remove old shared libraries
grep -vE '^/boot/' $1/INDEX-NEW |
grep -E '/lib/.*\.so\.[0-9]+' > INDEX-NEW
grep -vE '^/boot/' $1/INDEX-OLD |
grep -E '/lib/.*\.so\.[0-9]+' > INDEX-OLD
install_delete INDEX-OLD INDEX-NEW || return 1
# Remove temporary files
rm INDEX-OLD INDEX-NEW
}
# Rearrange bits to allow the installed updates to be rolled back
install_setup_rollback () {
# Remove the "reboot after installing kernel", "kernel updated", and
# "finished installing the world" flags if present -- they are
# irrelevant when rolling back updates.
if [ -f ${BDHASH}-install/kernelfirst ]; then
rm ${BDHASH}-install/kernelfirst
rm ${BDHASH}-install/kerneldone
fi
if [ -f ${BDHASH}-install/worlddone ]; then
rm ${BDHASH}-install/worlddone
fi
if [ -L ${BDHASH}-rollback ]; then
mv ${BDHASH}-rollback ${BDHASH}-install/rollback
fi
mv ${BDHASH}-install ${BDHASH}-rollback
}
# Actually install updates
install_run () {
echo -n "Installing updates..."
# Make sure we have all the files we should have
install_verify ${BDHASH}-install/INDEX-OLD \
${BDHASH}-install/INDEX-NEW || return 1
# Remove system immutable flag from files
install_unschg ${BDHASH}-install/INDEX-OLD \
${BDHASH}-install/INDEX-NEW || return 1
# Install new files, delete old files, and update linker.hints
install_files ${BDHASH}-install || return 1
# Rearrange bits to allow the installed updates to be rolled back
install_setup_rollback
echo " done."
}
# Rearrange bits to allow the previous set of updates to be rolled back next.
rollback_setup_rollback () {
if [ -L ${BDHASH}-rollback/rollback ]; then
mv ${BDHASH}-rollback/rollback rollback-tmp
rm -r ${BDHASH}-rollback/
rm ${BDHASH}-rollback
mv rollback-tmp ${BDHASH}-rollback
else
rm -r ${BDHASH}-rollback/
rm ${BDHASH}-rollback
fi
}
# Install old files, delete new files, and update linker.hints
rollback_files () {
# Install old shared library files which don't have the same path as
# a new shared library file.
grep -vE '^/boot/' $1/INDEX-NEW |
grep -E '/lib/.*\.so\.[0-9]+' |
cut -f 1 -d '|' |
sort > INDEX-NEW.libs.flist
grep -vE '^/boot/' $1/INDEX-OLD |
grep -E '/lib/.*\.so\.[0-9]+' |
sort -k 1,1 -t '|' - |
join -t '|' -v 1 - INDEX-NEW.libs.flist > INDEX-OLD
install_from_index INDEX-OLD || return 1
# Deal with files which are neither kernel nor shared library
grep -vE '^/boot/' $1/INDEX-OLD |
grep -vE '/lib/.*\.so\.[0-9]+' > INDEX-OLD
grep -vE '^/boot/' $1/INDEX-NEW |
grep -vE '/lib/.*\.so\.[0-9]+' > INDEX-NEW
install_from_index INDEX-OLD || return 1
install_delete INDEX-NEW INDEX-OLD || return 1
# Install any old shared library files which we didn't install above.
grep -vE '^/boot/' $1/INDEX-OLD |
grep -E '/lib/.*\.so\.[0-9]+' |
sort -k 1,1 -t '|' - |
join -t '|' - INDEX-NEW.libs.flist > INDEX-OLD
install_from_index INDEX-OLD || return 1
# Delete unneeded shared library files
grep -vE '^/boot/' $1/INDEX-OLD |
grep -E '/lib/.*\.so\.[0-9]+' > INDEX-OLD
grep -vE '^/boot/' $1/INDEX-NEW |
grep -E '/lib/.*\.so\.[0-9]+' > INDEX-NEW
install_delete INDEX-NEW INDEX-OLD || return 1
# Deal with kernel files
grep -E '^/boot/' $1/INDEX-OLD > INDEX-OLD
grep -E '^/boot/' $1/INDEX-NEW > INDEX-NEW
install_from_index INDEX-OLD || return 1
install_delete INDEX-NEW INDEX-OLD || return 1
if [ -s INDEX-OLD -o -s INDEX-NEW ]; then
kldxref -R /boot/ 2>/dev/null
fi
# Remove temporary files
rm INDEX-OLD INDEX-NEW
}
# Actually rollback updates
rollback_run () {
echo -n "Uninstalling updates..."
# If there are updates waiting to be installed, remove them; we
# want the user to re-run 'fetch' after rolling back updates.
if [ -L ${BDHASH}-install ]; then
rm -r ${BDHASH}-install/
rm ${BDHASH}-install
fi
# Make sure we have all the files we should have
install_verify ${BDHASH}-rollback/INDEX-NEW \
${BDHASH}-rollback/INDEX-OLD || return 1
# Remove system immutable flag from files
install_unschg ${BDHASH}-rollback/INDEX-NEW \
${BDHASH}-rollback/INDEX-OLD || return 1
# Install old files, delete new files, and update linker.hints
rollback_files ${BDHASH}-rollback || return 1
# Remove the rollback directory and the symlink pointing to it; and
# rearrange bits to allow the previous set of updates to be rolled
# back next.
rollback_setup_rollback
echo " done."
}
#### Main functions -- call parameter-handling and core functions
# Using the command line, configuration file, and defaults,
# set all the parameters which are needed later.
get_params () {
init_params
parse_cmdline $@
parse_conffile
default_params
}
# Fetch command. Make sure that we're being called
# interactively, then run fetch_check_params and fetch_run
cmd_fetch () {
if [ ! -t 0 ]; then
echo -n "`basename $0` fetch should not "
echo "be run non-interactively."
echo "Run `basename $0` cron instead."
exit 1
fi
fetch_check_params
fetch_run || exit 1
}
# Cron command. Make sure the parameters are sensible; wait
# rand(3600) seconds; then fetch updates. While fetching updates,
# send output to a temporary file; only print that file if the
# fetching failed.
cmd_cron () {
fetch_check_params
sleep `jot -r 1 0 3600`
TMPFILE=`mktemp /tmp/freebsd-update.XXXXXX` || exit 1
if ! fetch_run >> ${TMPFILE} ||
! grep -q "No updates needed" ${TMPFILE} ||
[ ${VERBOSELEVEL} = "debug" ]; then
mail -s "`hostname` security updates" ${MAILTO} < ${TMPFILE}
fi
rm ${TMPFILE}
}
# Fetch files for upgrading to a new release.
cmd_upgrade () {
upgrade_check_params
upgrade_run || exit 1
}
# Install downloaded updates.
cmd_install () {
install_check_params
install_run || exit 1
}
# Rollback most recently installed updates.
cmd_rollback () {
rollback_check_params
rollback_run || exit 1
}
#### Entry point
# Make sure we find utilities from the base system
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:${PATH}
# Set LC_ALL in order to avoid problems with character ranges like [A-Z].
export LC_ALL=C
get_params $@
for COMMAND in ${COMMANDS}; do
cmd_${COMMAND}
done
|