Mercurial > dropbear
annotate test/test_aslr.py @ 1870:0dcc5b0d93fa
Make re-exec work with "dropbearmulti dropbear"
The re-exec needs to know to use the dropbearmulti binary instead.
Add a test for this case.
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Tue, 01 Feb 2022 22:18:23 +0800 |
| parents | d940f8007a45 |
| children | 1c9215154d4a |
| rev | line source |
|---|---|
| 1861 | 1 from pathlib import Path |
| 2 import sys | |
| 3 | |
| 4 from test_dropbear import * | |
| 5 | |
| 6 def test_reexec(request, dropbear): | |
| 7 """ | |
| 8 Tests that two consecutive connections have different address layouts. | |
| 9 This indicates that re-exec makes ASLR work | |
| 10 """ | |
| 1863 | 11 map_script = (Path(request.node.fspath).parent / "parent_dropbear_map.py").resolve() |
| 12 # run within the same venv, for python deps | |
| 13 activate = own_venv_command() | |
| 14 cmd = f"{activate}; {map_script}" | |
| 15 print(cmd) | |
| 1861 | 16 r = dbclient(request, cmd, capture_output=True, text=True) |
| 17 map1 = r.stdout.rstrip() | |
| 18 print(r.stderr, file=sys.stderr) | |
| 19 r.check_returncode() | |
| 20 | |
| 21 r = dbclient(request, cmd, capture_output=True, text=True) | |
| 22 map2 = r.stdout.rstrip() | |
| 23 print(r.stderr, file=sys.stderr) | |
| 24 r.check_returncode() | |
| 25 | |
| 26 print(map1) | |
| 27 print(map2) | |
| 28 # expect something like | |
| 29 # "563174d59000-563174d5d000 r--p 00000000 00:29 4242372 /home/matt/src/dropbear/build/dropbear" | |
|
1865
d940f8007a45
Fix testing with dropbearmulti
Matt Johnston <matt@ucc.asn.au>
parents:
1863
diff
changeset
|
30 assert map1.endswith('/dropbear') or map1.endswith('/dropbearmulti') |
| 1861 | 31 assert ' r--p ' in map1 |
| 32 a1 = map1.split()[0] | |
| 33 a2 = map2.split()[0] | |
| 34 print(a1) | |
| 35 print(a2) | |
| 36 # relocation addresses should differ | |
| 37 assert a1 != a2 | |
| 38 |