2 # SPDX-License-Identifier: BSD-2-Clause
4 # Copyright (c) 2024 Igor Ostapenko <pm@igoro.pro>
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7 # modification, are permitted provided that the following conditions
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28 # Even being is_exclusive="true" this test does not expect a host to spawn
29 # other jails during the test execution.
31 atf_test_case "max_cur" "cleanup"
34 atf_set descr 'Test maximum and current number of child jails'
35 atf_set require.user root
39 origin_max=$(sysctl -n security.jail.children.max)
40 origin_cur=$(sysctl -n security.jail.children.cur)
42 # Magic numbers reasoning:
44 # - the test creates three jails: childfree, maxallowed, maxallowed.family
46 # - maxallowed.family wants to set children.max=4
47 # - it means that its parent (maxallowed) should have at least children.max=5
48 # - it makes the origin (parent of maxallowed) provide children.max=6 minimum
50 test $origin_cur -le $origin_max || atf_fail "Abnormal cur=$origin_cur > max=$origin_max."
51 test $((origin_max - origin_cur)) -ge 3 || atf_skip "Not enough child jails are allowed for the test."
52 test $origin_max -ge 6 || atf_skip "Not high enough children.max limit for the test."
54 jail -c name=childfree persist
55 atf_check_equal "$((origin_cur + 1))" "$(sysctl -n security.jail.children.cur)"
56 atf_check_equal "0" "$(jexec childfree sysctl -n security.jail.children.max)"
57 atf_check_equal "0" "$(jexec childfree sysctl -n security.jail.children.cur)"
59 jail -c name=maxallowed children.max=$((origin_max - 1)) persist
60 atf_check_equal "$((origin_cur + 2))" "$(sysctl -n security.jail.children.cur)"
61 atf_check_equal "$((origin_max - 1))" "$(jexec maxallowed sysctl -n security.jail.children.max)"
62 atf_check_equal "0" "$(jexec maxallowed sysctl -n security.jail.children.cur)"
64 jexec maxallowed jail -c name=family children.max=4 persist
65 atf_check_equal "$((origin_cur + 3))" "$(sysctl -n security.jail.children.cur)"
66 atf_check_equal "1" "$(jexec maxallowed sysctl -n security.jail.children.cur)"
67 atf_check_equal "4" "$(jexec maxallowed.family sysctl -n security.jail.children.max)"
68 atf_check_equal "0" "$(jexec maxallowed.family sysctl -n security.jail.children.cur)"
79 atf_add_test_case "max_cur"