--- /srv/rebuilderd/tmp/rebuilderdhFzrt6/inputs/userv_1.2.1_armel.deb
+++ /srv/rebuilderd/tmp/rebuilderdhFzrt6/out/userv_1.2.1_armel.deb
├── file list
│ @@ -1,3 +1,3 @@
│ -rw-r--r-- 0 0 0 4 2025-02-04 20:15:48.000000 debian-binary
│ --rw-r--r-- 0 0 0 1732 2025-02-04 20:15:48.000000 control.tar.xz
│ --rw-r--r-- 0 0 0 273280 2025-02-04 20:15:48.000000 data.tar.xz
│ +-rw-r--r-- 0 0 0 1736 2025-02-04 20:15:48.000000 control.tar.xz
│ +-rw-r--r-- 0 0 0 273228 2025-02-04 20:15:48.000000 data.tar.xz
├── control.tar.xz
│ ├── control.tar
│ │ ├── ./md5sums
│ │ │ ├── ./md5sums
│ │ │ │┄ Files differ
├── data.tar.xz
│ ├── data.tar
│ │ ├── file list
│ │ │ @@ -18,25 +18,25 @@
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/
│ │ │ -rw-r--r-- 0 root (0) root (0) 1793 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/README
│ │ │ -rw-r--r-- 0 root (0) root (0) 1911 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/changelog.gz
│ │ │ -rw-r--r-- 0 root (0) root (0) 1448 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/copyright
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/examples/
│ │ │ -rw-r--r-- 0 root (0) root (0) 1664 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/examples/system.default
│ │ │ -rw-r--r-- 0 root (0) root (0) 359 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/examples/system.override
│ │ │ --rw-r--r-- 0 root (0) root (0) 16365 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/overview.pdf.gz
│ │ │ +-rw-r--r-- 0 root (0) root (0) 16357 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/overview.pdf.gz
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/
│ │ │ -rw-r--r-- 0 root (0) root (0) 17996 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-client.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 29055 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-config.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 9646 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-envir.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 4627 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-intro.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 8667 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-ipass.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 12418 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/ch-notes.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 3397 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/footnotes.html
│ │ │ -rw-r--r-- 0 root (0) root (0) 6697 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.html/index.html
│ │ │ --rw-r--r-- 0 root (0) root (0) 185617 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.pdf.gz
│ │ │ +-rw-r--r-- 0 root (0) root (0) 185563 2025-02-04 20:15:48.000000 ./usr/share/doc/userv/spec.pdf.gz
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/lintian/
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/lintian/overrides/
│ │ │ -rw-r--r-- 0 root (0) root (0) 50 2025-02-04 20:15:48.000000 ./usr/share/lintian/overrides/userv
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/man/
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/man/man1/
│ │ │ -rw-r--r-- 0 root (0) root (0) 5002 2025-02-04 20:15:48.000000 ./usr/share/man/man1/userv.1.gz
│ │ │ drwxr-xr-x 0 root (0) root (0) 0 2025-02-04 20:15:48.000000 ./usr/share/man/man8/
│ │ ├── ./usr/share/doc/userv/overview.pdf.gz
│ │ │ ├── overview.pdf
│ │ │ │ ├── dumppdf -at {}
│ │ │ │ │ @@ -73,20 +73,20 @@
│ │ │ │ │
│ │ │ │ │ Length
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2465 2474.6 l
2451.2 2478.8 l
2436.8 2483.6 l
2422.4 2487.8 l
2408 2492.6 l
2393 2497.4 l
2378 2502.8 l
2362.4 2507.6 l
2347.4 2512.4 l
2331.8 2517.2 l
2316.2 2521.4 l
2301.2 2526.2 l
2285.6 2530.4 l
2270.6 2534 l
2255 2538.2 l
2240 2541.2 l
2224.4 2544.8 l
2208.8 2547.2 l
2195 2549.6 l
2180.6 2552 l
2166.2 2553.8 l
2150.6 2555.6 l
2135 2557.4 l
2117.6 2558.6 l
2099 2559.8 l
2079.8 2561 l
2058.8 2562.2 l
2036 2563.4 l
2012 2564.6 l
1986.8 2565.2 l
1960.4 2566.4 l
1932.8 2567 l
1905.2 2567.6 l
1878.2 2568.2 l
1852.4 2568.8 l
1828.4 2568.8 l
1806.8 2569.4 l
1788.2 2569.4 l
1773.8 2570 l
1763.6 2570 l
1756.4 2570 l
1752.8 2570 l
1751 2570 l
S
Q
[ ] 0 d
0 j
2794.4 2455.4 m
2865.8 2435 l
2793.8 2419.4 l
S
q
0 5950 8420 -5950 re
3816.8 2476.4 m
3817.4 2484.2 l
3903.8 2493.8 l
3831.2 2479.4 l
3902 2458.4 l
h
W* n
[ 9 27 ] 27 d
2 j
3821 2480 m
3846.2 2478.8 l
3860.6 2478.2 l
3878 2477.6 l
3896.6 2476.4 l
3916.4 2475.2 l
3936.2 2473.4 l
3954.8 2471.6 l
3972.8 2469.8 l
3989.6 2467.4 l
4004.6 2465 l
4018.4 2462.6 l
4031.6 2459 l
4043.6 2456 l
4055 2451.8 l
4065.8 2447.6 l
4076 2442.2 l
4085.6 2437.4 l
4094.6 2432 l
4103.6 2426 l
4112.6 2419.4 l
4122.2 2412.2 l
4131.2 2404.4 l
4140.8 2395.4 l
4149.8 2385.8 l
4158.8 2375 l
4167.8 2364.2 l
4176.8 2352.2 l
4185.8 2339 l
4194.2 2325.8 l
4202 2311.4 l
4209.8 2297 l
4217.6 2281.4 l
4224.8 2265.8 l
4231.4 2249.6 l
4238 2233.4 l
4244.6 2216 l
4250 2198.6 l
4256 2180 l
4260.2 2165 l
4264.4 2149.4 l
4269.2 2133.2 l
4273.4 2116.4 l
4277.6 2099 l
4281.8 2081 l
4286 2062.4 l
4290.2 2043.2 l
4295 2023.4 l
4299.2 2003.6 l
4304 1983.2 l
4308.8 1962.2 l
4313.6 1941.2 l
4317.8 1920.8 l
4323.2 1899.8 l
4328 1879.4 l
4332.8 1859 l
4337.6 1839.2 l
4343 1820 l
4347.8 1801.4 l
4353.2 1783.4 l
4358 1766 l
4363.4 1749.2 l
4368.8 1733.6 l
4374.2 1718 l
4379.6 1704.2 l
4385 1690.4 l
4391 1677.2 l
4398.2 1663.4 l
4405.4 1650.2 l
4413.2 1637 l
4421 1625 l
4430 1613.6 l
4439 1602.8 l
4448 1592.6 l
4458.2 1583 l
4468.4 1574 l
4479.2 1565.6 l
4490 1557.8 l
4501.4 1550.6 l
4512.8 1544 l
4524.2 1538 l
4535.6 1532.6 l
4547.6 1527.8 l
4559 1523.6 l
4571 1520 l
4582.4 1516.4 l
4593.8 1513.4 l
4605.2 1511 l
4616 1508.6 l
4627.4 1506.8 l
4638.8 1505 l
4650.8 1503.2 l
4663.4 1501.4 l
4676 1500.2 l
4689.2 1499 l
4703.6 1497.8 l
4718.6 1496.6 l
4734.2 1495.4 l
4751.6 1494.8 l
4770.2 1494.2 l
4789.4 1493 l
4809.8 1492.4 l
4831.4 1491.8 l
4852.4 1491.8 l
4872.8 1491.2 l
4892 1490.6 l
4908.8 1490.6 l
4922.6 1490 l
4933.4 1490 l
4940 1490 l
4944.2 1490 l
4946 1490 l
S
Q
3902 2458.4 m
3831.2 2479.4 l
3903.8 2493.8 l
S
q
0 5950 8420 -5950 re
4950.2 1404.2 m
4950.2 1395.8 l
4863.8 1382 l
4935.8 1400 l
4863.8 1418 l
h
W* n
[ 9 27 ] 27 d
2 j
3821 2390 m
3827.6 2390 l
3834.8 2389.4 l
3846.2 2388.8 l
3860.6 2388.2 l
3878 2387.6 l
3896.6 2386.4 l
3916.4 2385.2 l
3936.2 2383.4 l
3954.8 2381.6 l
3972.8 2379.8 l
3989.6 2377.4 l
4004.6 2375 l
4018.4 2372.6 l
4031.6 2369 l
4043.6 2366 l
4055 2361.8 l
4065.8 2357.6 l
4076 2352.2 l
4085.6 2347.4 l
4094.6 2342 l
4103.6 2336 l
4112.6 2329.4 l
4122.2 2322.2 l
4131.2 2314.4 l
4140.8 2305.4 l
4149.8 2295.8 l
4158.8 2285 l
4167.8 2274.2 l
4176.8 2262.2 l
4185.8 2249 l
4194.2 2235.8 l
4202 2221.4 l
4209.8 2207 l
4217.6 2191.4 l
4224.8 2175.8 l
4231.4 2159.6 l
4238 2143.4 l
4244.6 2126 l
4250 2108.6 l
4256 2090 l
4260.2 2075 l
4264.4 2059.4 l
4269.2 2043.2 l
4273.4 2026.4 l
4277.6 2009 l
4281.8 1991 l
4286 1972.4 l
4290.2 1953.2 l
4295 1933.4 l
4299.2 1913.6 l
4304 1893.2 l
4308.8 1872.2 l
4313.6 1851.2 l
4317.8 1830.8 l
4323.2 1809.8 l
4328 1789.4 l
4332.8 1769 l
4337.6 1749.2 l
4343 1730 l
4347.8 1711.4 l
4353.2 1693.4 l
4358 1676 l
4363.4 1659.2 l
4368.8 1643.6 l
4374.2 1628 l
4379.6 1614.2 l
4385 1600.4 l
4391 1587.2 l
4398.2 1573.4 l
4405.4 1560.2 l
4413.2 1547 l
4421 1535 l
4430 1523.6 l
4439 1512.8 l
4448 1502.6 l
4458.2 1493 l
4468.4 1484 l
4479.2 1475.6 l
4490 1467.8 l
4501.4 1460.6 l
4512.8 1454 l
4524.2 1448 l
4535.6 1442.6 l
4547.6 1437.8 l
4559 1433.6 l
4571 1430 l
4582.4 1426.4 l
4593.8 1423.4 l
4605.2 1421 l
4616 1418.6 l
4627.4 1416.8 l
4638.8 1415 l
4650.8 1413.2 l
4663.4 1411.4 l
4676 1410.2 l
4689.2 1409 l
4703.6 1407.8 l
4718.6 1406.6 l
4734.2 1405.4 l
4751.6 1404.8 l
4770.2 1404.2 l
4789.4 1403 l
4809.8 1402.4 l
4831.4 1401.8 l
4852.4 1401.8 l
4872.8 1401.2 l
4892 1400.6 l
4908.8 1400.6 l
4922.6 1400 l
4946 1400 l
S
Q
4863.8 1418 m
4935.8 1400 l
4863.8 1382 l
S
q
0 5950 8420 -5950 re
1746.8 2655.8 m
1746.8 2664.2 l
1833.2 2678 l
1761.2 2660 l
1833.2 2642 l
h
W* n
[ 9 27 ] 27 d
2 j
2876 2525 m
2864.6 2525 l
2855 2525.6 l
2826.2 2525.6 l
2807.6 2526.2 l
2787.2 2526.8 l
2765.6 2527.4 l
2743.4 2528 l
2721.8 2528.6 l
2700.2 2529.8 l
2679.8 2531 l
2660.6 2531.6 l
2642.6 2532.8 l
2625.8 2534 l
2610.2 2535.8 l
2595.2 2537 l
2581.4 2538.8 l
2568.2 2540.6 l
2555.6 2543 l
2543 2544.8 l
2531 2547.2 l
2517.8 2550.2 l
2504.6 2553.8 l
2492 2556.8 l
2478.2 2561 l
2465 2564.6 l
2451.2 2568.8 l
2436.8 2573.6 l
2422.4 2577.8 l
2408 2582.6 l
2393 2587.4 l
2378 2592.8 l
2362.4 2597.6 l
2347.4 2602.4 l
2331.8 2607.2 l
2316.2 2611.4 l
2301.2 2616.2 l
2285.6 2620.4 l
2270.6 2624 l
2255 2628.2 l
2240 2631.2 l
2224.4 2634.8 l
2208.8 2637.2 l
2195 2639.6 l
2180.6 2642 l
2166.2 2643.8 l
2150.6 2645.6 l
2135 2647.4 l
2117.6 2648.6 l
2099 2649.8 l
2079.8 2651 l
2058.8 2652.2 l
2036 2653.4 l
2012 2654.6 l
1986.8 2655.2 l
1960.4 2656.4 l
1932.8 2657 l
1905.2 2657.6 l
1878.2 2658.2 l
1852.4 2658.8 l
1828.4 2658.8 l
1806.8 2659.4 l
1788.2 2659.4 l
1773.8 2660 l
1751 2660 l
S
Q
1833.2 2642 m
1761.2 2660 l
1833.2 2678 l
S
0 g
q
10 0 0 10 0 0 cm BT
/R39533048 16.0002 Tf
1 0 0 1 337.7 389 Tm
(fork/exec)Tj
91.5 TL
(fork/exec)'
/R40078424 19.0002 Tf
-23.1 -58.5 Td
(cat)Tj
9 TL
(cat)'
/R40602664 15 Tf
-99 -13.5 Td
(trusted)Tj
/R40602664 19.0002 Tf
-9 -81 Td
(unrelated processes)Tj
/R40602664 15 Tf
-13.5 63 Td
(untrusted)Tj
-4.5 -18 Td
(invoking user's security boundary)Tj
/R40602664 19.0002 Tf
409.5 63 Td
(TCB)Tj
76.5 TL
(service)'
4.5 -13.5 Td
(user)Tj
/R40602664 15 Tf
4.5 243 Td
(untrusted)Tj
/R40602664 19.0002 Tf
-148.5 40.5 Td
(invoking user)Tj
/R39533048 16.0002 Tf
-36 -202.5 Td
(pipes \(set up by)Tj
9 -13.5 Td
(client+daemon\))Tj
54 80.5199 Td
(fork/exec)Tj
/R41187672 19.9998 Tf
29.8199 42 Td
(Daemon)Tj
207.48 TL
(program)'
0 14.0402 Td
(Service)Tj
-205.74 193.44 Td
(Client)Tj
0.419922 97.9801 Td
(Caller)Tj
/R40602664 15 Tf
243 -54 Td
(trusted)Tj
/R39533048 16.0002 Tf
-135 -37.0199 Td
(socket)Tj
-243 -79.9801 Td
(or passed from caller)Tj
4.5 27 Td
(fds)Tj
13.5 TL
(opened by client)'
/R40602664 15 Tf
292.5 126 Td
(service user's security boundary)Tj
ET
Q
Q
│ │ │ │ │ +q 0.1 0 0 0.1 0 0 cm
/R7 gs
q
0 5950 8420 -5950 re
3330.2 3780.8 m
3321.8 3780.8 l
3308 3867.2 l
3326 3795.2 l
3344 3867.2 l
h
W* n
[ 9 27 ] 27 d
4.5 w
0 G
3326 4145 m
3326 3785 l
S
Q
4.5 w
0 G
3344 3867.2 m
3326 3795.2 l
3308 3867.2 l
S
q
0 5950 8420 -5950 re
4950.2 3474.2 m
4950.2 3465.8 l
4863.8 3452 l
4935.8 3470 l
4863.8 3488 l
h
3792.2 3466.4 m
3792.2 3474.8 l
3878.6 3488.6 l
3806.6 3470.6 l
3878.6 3452.6 l
h
W* n
[ 9 27 ] 27 d
3796.4 3470.6 m
4946 3470 l
S
Q
3878.6 3452.6 m
3806.6 3470.6 l
3878.6 3488.6 l
S
4863.8 3488 m
4935.8 3470 l
4863.8 3452 l
S
q
0 5950 8420 -5950 re
3330.2 2655.8 m
3321.8 2655.8 l
3308 2742.2 l
3326 2670.2 l
3344 2742.2 l
h
W* n
[ 9 27 ] 27 d
3326 3155 m
3326 2660 l
S
Q
3344 2742.2 m
3326 2670.2 l
3308 2742.2 l
S
0 0 0 RG
2921 2255 855 360 re
S
2921 2165 855 360 re
S
q
0 5950 8420 -5950 re
5445.2 1800.8 m
5436.8 1800.8 l
5423 1887.2 l
5441 1815.2 l
5459 1887.2 l
h
W* n
[ 9 27 ] 27 d
0 G
5441 3155 m
5441 1805 l
S
Q
0 G
5459 1887.2 m
5441 1815.2 l
5423 1887.2 l
S
2921 3191 855 559.199 re
S
2921 4169.6 855 560.398 re
S
5006.6 3191 884.398 559.199 re
S
5006.6 1220.6 884.398 560.398 re
S
[ 36 ] 0 d
2 j
1796 2120 m
1797.8 2120 l
1800.8 2120.6 l
1805 2120.6 l
1811 2121.2 l
1818.8 2121.8 l
1828.4 2123 l
1839.8 2123.6 l
1853.6 2124.8 l
1868.6 2126 l
1885.4 2127.2 l
1904 2129 l
1923.8 2130.2 l
1944.2 2131.4 l
1966.4 2132.6 l
1988.6 2133.8 l
2012 2135 l
2036 2135.6 l
2060.6 2136.8 l
2085.8 2136.8 l
2111.6 2137.4 l
2138.6 2137.4 l
2166.2 2137.4 l
2195 2136.8 l
2225 2135.6 l
2255.6 2134.4 l
2288 2132.6 l
2321 2130.2 l
2355.8 2127.2 l
2390.6 2124.2 l
2426 2120 l
2465.6 2114.6 l
2502.8 2109.2 l
2535.8 2103.8 l
2564 2098.4 l
2587.4 2092.4 l
2606 2087.6 l
2619.2 2082.8 l
2628.2 2078 l
2633 2073.8 l
2634.8 2070.2 l
2633.6 2066.6 l
2630.6 2063 l
2625.8 2059.4 l
2621 2056.4 l
2616.2 2052.8 l
2612.6 2049.8 l
2610.8 2046.2 l
2611.4 2042 l
2615.6 2037.8 l
2624 2033.6 l
2637.8 2028.8 l
2657.6 2023.4 l
2684 2018 l
2717 2011.4 l
2757.8 2005.4 l
2805.8 1998.2 l
2860.4 1991.6 l
2921 1985 l
2961.8 1980.8 l
3002.6 1977.2 l
3043.4 1973.6 l
3083.6 1970.6 l
3122 1967.6 l
3158.6 1964.6 l
3192.2 1962.2 l
3224 1959.8 l
3252.8 1957.4 l
3279.2 1955.6 l
3303.2 1953.8 l
3324.2 1952.6 l
3342.8 1950.8 l
3359 1949.6 l
3373.4 1949 l
3386 1947.8 l
3397.4 1947.2 l
3407 1946 l
3415.4 1945.4 l
3423.2 1944.8 l
3431 1944.2 l
3438.8 1943.6 l
3446 1943 l
3454.4 1943 l
3463.4 1942.4 l
3473.6 1941.8 l
3485.6 1941.2 l
3498.8 1941.2 l
3515 1940.6 l
3533 1940 l
3554.6 1940 l
3579.2 1939.4 l
3606.8 1938.8 l
3638.6 1938.8 l
3674 1938.2 l
3714.2 1938.2 l
3758.6 1937.6 l
3807.2 1937.6 l
3860 1937.6 l
3917.6 1937.6 l
3978.8 1938.2 l
4043.6 1938.2 l
4111.4 1939.4 l
4181 1940 l
4238.6 1941.2 l
4296.8 1941.8 l
4354.4 1943 l
4410.8 1944.8 l
4466 1946 l
4519.4 1947.2 l
4571 1949 l
4619.6 1950.2 l
4667 1952 l
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4752.8 1954.4 l
4792.4 1956.2 l
4829 1957.4 l
4863.8 1958.6 l
4896.2 1960.4 l
4926.2 1961.6 l
4954.4 1962.8 l
4980.2 1964 l
5004.8 1965.2 l
5027.6 1966.4 l
5049.2 1967.6 l
5069.6 1968.2 l
5088.8 1969.4 l
5107.4 1970.6 l
5125.4 1971.8 l
5142.8 1972.4 l
5159.6 1973.6 l
5177 1974.8 l
5193.8 1976 l
5211.8 1977.2 l
5229.8 1978.4 l
5248.4 1979.6 l
5267.6 1980.8 l
5288 1982 l
5309.6 1983.2 l
5333 1985 l
5357 1986.2 l
5383.4 1988 l
5411 1989.8 l
5441 1991.6 l
5472.2 1993.4 l
5505.8 1995.8 l
5541.2 1997.6 l
5578.4 2000 l
5618 2003 l
5659.4 2005.4 l
5702 2007.8 l
5746.4 2010.8 l
5792.6 2013.8 l
5838.8 2016.8 l
5886.2 2020.4 l
5933.6 2023.4 l
5980.4 2026.4 l
6026 2030 l
6099.2 2035.4 l
6166.4 2041.4 l
6227.6 2046.2 l
6282.2 2051.6 l
6330.8 2056.4 l
6373.4 2061.2 l
6411.2 2065.4 l
6443.6 2069.6 l
6471.8 2073.8 l
6496.4 2077.4 l
6517.4 2081 l
6535.4 2084.6 l
6550.4 2088.2 l
6563 2091.2 l
6573.8 2094.2 l
6582.8 2097.2 l
6590 2100.2 l
6596 2103.2 l
6600.8 2105.6 l
6603.8 2108 l
6606.8 2110.4 l
6608.6 2112.8 l
6609.8 2114 l
6610.4 2115.8 l
6611 2117 l
6611 2118.2 l
6611 2118.8 l
6611 2119.4 l
6611 2120 l
S
4091 1220 m
4091 1235 l
4091.6 1242.8 l
4091.6 1279.4 l
4092.2 1296.8 l
4092.2 1315.4 l
4092.2 1337 l
4092.2 1359.8 l
4092.8 1385 l
4092.8 1411.4 l
4092.8 1439 l
4092.8 1468.4 l
4092.8 1498.4 l
4092.2 1529.6 l
4092.2 1561.4 l
4091.6 1593.2 l
4091 1626.2 l
4090.4 1659.8 l
4089.8 1693.4 l
4088.6 1727.6 l
4088 1762.4 l
4086.2 1797.2 l
4085 1832.6 l
4083.2 1868.6 l
4080.8 1905.2 l
4078.4 1942.4 l
4076 1980.2 l
4072.4 2018.6 l
4069.4 2057.6 l
4065.2 2097.2 l
4061 2136.8 l
4056.8 2176.4 l
4051.4 2216 l
4046 2255 l
4038.2 2304.8 l
4030.4 2350.4 l
4023.2 2392.4 l
4017.2 2429 l
4011.8 2460.8 l
4007.6 2487.2 l
4005.2 2509.4 l
4003.4 2527.4 l
4003.4 2541.2 l
4004 2552 l
4005.2 2559.8 l
4007.6 2565.8 l
4010 2569.4 l
4013 2571.8 l
4016 2573.6 l
4018.4 2575.4 l
4020.8 2577.2 l
4022 2579 l
4022.6 2582.6 l
4021.4 2587.4 l
4018.4 2594 l
4013.6 2602.4 l
4006.4 2613.2 l
3996.2 2627 l
3983 2642.6 l
3966.8 2661.2 l
3946.4 2681.6 l
3923 2703.8 l
3896 2727.2 l
3866 2750 l
3839 2768 l
3810.8 2785.4 l
3782.6 2800.4 l
3755 2814.2 l
3728 2826.2 l
3702.8 2836.4 l
3678.2 2845.4 l
3655.4 2852 l
3634.4 2857.4 l
3614.6 2861.6 l
3596.6 2864.6 l
3579.8 2866.4 l
3564.2 2867 l
3549.8 2867 l
3536.6 2866.4 l
3523.4 2865.8 l
3510.8 2864 l
3498.2 2862.2 l
3486.2 2861 l
3473.6 2859.2 l
3460.4 2858 l
3446 2856.8 l
3431.6 2856.2 l
3415.4 2856.2 l
3398 2856.8 l
3378.8 2858.6 l
3358.4 2861 l
3335.6 2864.6 l
3311.6 2868.8 l
3285.2 2874.8 l
3257 2881.4 l
3227.6 2889.2 l
3196.4 2898.2 l
3164.6 2908.4 l
3132.8 2918.6 l
3101 2930 l
3062 2944.4 l
3026 2958.2 l
2994.2 2970.8 l
2966 2982.2 l
2941.4 2991.2 l
2921.6 2998.4 l
2904.8 3003.8 l
2891.6 3007.4 l
2881.4 3009.2 l
2873.6 3009.8 l
2867.6 3009.8 l
2863.4 3008.6 l
2859.8 3006.8 l
2857.4 3005 l
2855 3003.2 l
2852.6 3002 l
2849.6 3002 l
2846 3003.2 l
2841.2 3005.6 l
2835.8 3010.4 l
2828 3017 l
2819 3027.2 l
2808.8 3039.8 l
2796.2 3056 l
2783 3075.8 l
2769.2 3099.2 l
2754.8 3125.6 l
2741 3155 l
2730.2 3182.6 l
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2702 3290 l
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q
0 5950 8420 -5950 re
2880.2 2439.2 m
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h
W* n
[ 9 27 ] 27 d
2876 2435 m
2855 2435.6 l
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2012 2564.6 l
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Q
[ ] 0 d
0 j
2794.4 2455.4 m
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S
q
0 5950 8420 -5950 re
3816.8 2476.4 m
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h
W* n
[ 9 27 ] 27 d
2 j
3821 2480 m
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Q
3902 2458.4 m
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S
q
0 5950 8420 -5950 re
4950.2 1404.2 m
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h
W* n
[ 9 27 ] 27 d
2 j
3821 2390 m
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S
Q
4863.8 1418 m
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S
q
0 5950 8420 -5950 re
1746.8 2655.8 m
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1833.2 2642 l
h
W* n
[ 9 27 ] 27 d
2 j
2876 2525 m
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2195 2639.6 l
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2166.2 2643.8 l
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2135 2647.4 l
2117.6 2648.6 l
2099 2649.8 l
2079.8 2651 l
2058.8 2652.2 l
2036 2653.4 l
2012 2654.6 l
1986.8 2655.2 l
1960.4 2656.4 l
1932.8 2657 l
1905.2 2657.6 l
1878.2 2658.2 l
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1751 2660 l
S
Q
1833.2 2642 m
1761.2 2660 l
1833.2 2678 l
S
0 g
q
10 0 0 10 0 0 cm BT
/R40290808 16.0002 Tf
1 0 0 1 337.7 389 Tm
(fork/exec)Tj
91.5 TL
(fork/exec)'
/R40836184 19.0002 Tf
-23.1 -58.5 Td
(cat)Tj
9 TL
(cat)'
/R41360424 15 Tf
-99 -13.5 Td
(trusted)Tj
/R41360424 19.0002 Tf
-9 -81 Td
(unrelated processes)Tj
/R41360424 15 Tf
-13.5 63 Td
(untrusted)Tj
-4.5 -18 Td
(invoking user's security boundary)Tj
/R41360424 19.0002 Tf
409.5 63 Td
(TCB)Tj
76.5 TL
(service)'
4.5 -13.5 Td
(user)Tj
/R41360424 15 Tf
4.5 243 Td
(untrusted)Tj
/R41360424 19.0002 Tf
-148.5 40.5 Td
(invoking user)Tj
/R40290808 16.0002 Tf
-36 -202.5 Td
(pipes \(set up by)Tj
9 -13.5 Td
(client+daemon\))Tj
54 80.5199 Td
(fork/exec)Tj
/R41945432 19.9998 Tf
29.8199 42 Td
(Daemon)Tj
207.48 TL
(program)'
0 14.0402 Td
(Service)Tj
-205.74 193.44 Td
(Client)Tj
0.419922 97.9801 Td
(Caller)Tj
/R41360424 15 Tf
243 -54 Td
(trusted)Tj
/R40290808 16.0002 Tf
-135 -37.0199 Td
(socket)Tj
-243 -79.9801 Td
(or passed from caller)Tj
4.5 27 Td
(fds)Tj
13.5 TL
(opened by client)'
/R41360424 15 Tf
292.5 126 Td
(service user's security boundary)Tj
ET
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Q
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│ │ │ │ │
│ │ │ │ │
│ │ │ │ │
│ │ │ │ │ Type
│ │ │ │ │ XRef
│ │ ├── ./usr/share/doc/userv/spec.pdf.gz
│ │ │ ├── spec.pdf
│ │ │ │ ├── pdftotext {} -
│ │ │ │ │ @@ -34,15 +34,15 @@
│ │ │ │ │ SIGNATURE
│ │ │ │ │
│ │ │ │ │ WRITTEN BY
│ │ │ │ │
│ │ │ │ │ Ian Jackson and
│ │ │ │ │ contributors
│ │ │ │ │
│ │ │ │ │ -February 4, 2025
│ │ │ │ │ +July 29, 2025
│ │ │ │ │
│ │ │ │ │ REVISION HISTORY
│ │ │ │ │ NUMBER
│ │ │ │ │
│ │ │ │ │ DATE
│ │ │ │ │
│ │ │ │ │ DESCRIPTION