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1 from pathlib import Path |
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2 import sys |
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3 |
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4 from test_dropbear import * |
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5 |
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6 def test_reexec(request, dropbear): |
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7 """ |
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8 Tests that two consecutive connections have different address layouts. |
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9 This indicates that re-exec makes ASLR work |
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10 """ |
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11 cmd = (Path(request.node.fspath).parent / "parent_dropbear_map.py").resolve() |
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12 r = dbclient(request, cmd, capture_output=True, text=True) |
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13 map1 = r.stdout.rstrip() |
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14 print(r.stderr, file=sys.stderr) |
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15 r.check_returncode() |
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16 |
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17 r = dbclient(request, cmd, capture_output=True, text=True) |
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18 map2 = r.stdout.rstrip() |
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19 print(r.stderr, file=sys.stderr) |
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20 r.check_returncode() |
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21 |
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22 print(map1) |
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23 print(map2) |
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24 # expect something like |
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25 # "563174d59000-563174d5d000 r--p 00000000 00:29 4242372 /home/matt/src/dropbear/build/dropbear" |
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26 assert map1.endswith('/dropbear') |
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27 assert ' r--p ' in map1 |
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28 a1 = map1.split()[0] |
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29 a2 = map2.split()[0] |
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30 print(a1) |
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31 print(a2) |
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32 # relocation addresses should differ |
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33 assert a1 != a2 |
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34 |
