#       $NetBSD: t_simplehook.sh,v 1.1 2021/09/30 02:00:20 yamaguchi Exp $
#
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DEBUG=${DEBUG:-false}
SOCK=unix://commsock
HIJACKING="env LD_PRELOAD=/usr/lib/librumphijack.so \
   RUMPHIJACK=path=/rump,socket=all:nolocal,sysctl=yes"

atf_sysctl_rd()
{
       local sysctl_key=$1
       local expected=$2

       atf_check -s exit:0 -o match:"$expected" \
           rump.sysctl -n $sysctl_key
}

atf_sysctl_wr()
{
       local sysctl_key=$1
       local value=$2

       atf_check -s exit:0 -o ignore rump.sysctl -w $sysctl_key=$value
}

atf_sysctl_wait()
{
       local sysctl_key=$1
       local expected=$2
       local n=10
       local i
       local v

       for i in $(seq $n); do
               v=$(rump.sysctl -n $sysctl_key)
               if [ x"$v" = x"$expected" ]; then
                       return
               fi
               sleep 0.5
       done

       atf_fail "Couldn't get the value for $n seconds."
}

atf_test_case simplehook_basic cleanup
simplehook_basic_head()
{

       atf_set "descr" "tests for basically functions of simplehook"
       atf_set "require.progs" "rump_server"
}


simplehook_basic_body()
{
       local key_hklist="kern.simplehook_tester.hook_list"
       local key_hk0="kern.simplehook_tester.hook0"
       local key_hk1="kern.simplehook_tester.hook1"

       rump_server -lrumpkern_simplehook_tester $SOCK

       export RUMP_SERVER=$SOCK

       $DEBUG && rump.sysctl -e kern.simplehook_tester
       atf_check -s exit:0 -o ignore rump.sysctl -e kern.simplehook_tester

       # create and destroy
       atf_sysctl_rd ${key_hklist}.created '0'
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hklist}.created '0'
       $DEBUG && rump.sysctl -e kern.simplehook_tester

       # establish one hook
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk0}.count '0'
       atf_sysctl_wr ${key_hklist}.dohooks '1'
       atf_sysctl_wr ${key_hklist}.dohooks '0'
       atf_sysctl_rd ${key_hk0}.count '1'
       atf_sysctl_wr ${key_hk0}.established '0'
       atf_sysctl_wr ${key_hklist}.created '0'

       # establish two hooks
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk1}.established '1'
       atf_sysctl_wr ${key_hk0}.count '0'
       atf_sysctl_wr ${key_hk1}.count '0'

       atf_sysctl_wr ${key_hklist}.dohooks '1'
       atf_sysctl_wr ${key_hklist}.dohooks '0'
       atf_sysctl_rd ${key_hk0}.count '1'
       atf_sysctl_rd ${key_hk1}.count '1'

       atf_sysctl_wr ${key_hk0}.established '0'
       atf_sysctl_wr ${key_hk1}.established '0'
       atf_sysctl_wr ${key_hklist}.created '0'
}

simplehook_basic_cleanup()
{
       export RUMP_SERVER=$SOCK

       $DEBUG && rump.sysctl -e kern.simplehook_tester
       $DEBUG && $HIJACKING dmesg
       rump.halt
}

atf_test_case simplehook_disestablish cleanup
simplehook_disestablish_head()
{

       atf_set "descr" "tests for disestablish of simplehook"
       atf_set "require.progs" "rump_server"
}

simplehook_disestablish_body()
{
       local key_hklist="kern.simplehook_tester.hook_list"
       local key_hk0="kern.simplehook_tester.hook0"
       local key_hk1="kern.simplehook_tester.hook1"

       rump_server -lrumpkern_simplehook_tester $SOCK

       export RUMP_SERVER=$SOCK

       $DEBUG && rump.sysctl -e kern.simplehook_tester
       atf_check -s exit:0 -o ignore rump.sysctl -e kern.simplehook_tester

       #
       # disestablish on the running hook
       #
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk0}.disestablish_in_hook '1'
       atf_sysctl_wr ${key_hklist}.dohooks '1'
       atf_sysctl_wr ${key_hklist}.dohooks '0'

       # already disestablished
       atf_sysctl_rd ${key_hk0}.established '0'
       atf_sysctl_wr ${key_hk0}.disestablish_in_hook '0'

       atf_sysctl_wr ${key_hklist}.created '0'

       #
       # disestablish called hook while doing other hook
       #
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk1}.established '1'

       atf_sysctl_wr ${key_hk0}.count '0'
       atf_sysctl_wr ${key_hk1}.count '0'
       atf_sysctl_wr ${key_hk0}.stopping '1'

       # calls hook1 -> hook0
       atf_sysctl_wr ${key_hklist}.dohooks '1'

       # stop in hook0
       atf_sysctl_wait ${key_hk0}.stopped '1'

       atf_sysctl_rd ${key_hk1}.count '1'
       atf_sysctl_wr ${key_hk1}.established '0'

       # wakeup hook0
       atf_sysctl_wr ${key_hk0}.stopping '0'
       atf_sysctl_wr ${key_hklist}.dohooks '0'

       atf_sysctl_wr ${key_hk0}.established '0'
       atf_sysctl_wr ${key_hklist}.created '0'

       #
       # disestablish a hook in running hook list
       #
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk1}.established '1'

       atf_sysctl_wr ${key_hk0}.count '0'
       atf_sysctl_wr ${key_hk1}.count '0'
       atf_sysctl_wr ${key_hk1}.stopping '1'

       # calls hook1 -> hook0
       atf_sysctl_wr ${key_hklist}.dohooks '1'

       # stop in hook1
       atf_sysctl_wait ${key_hk1}.stopped '1'

       atf_sysctl_wr ${key_hk0}.established '0'

       # wakeup hook1
       atf_sysctl_wr ${key_hk1}.stopping '0'
       atf_sysctl_wr ${key_hklist}.dohooks '0'

       # hook0 is not called
       atf_sysctl_rd ${key_hk0}.count '0'

       atf_sysctl_wr ${key_hk1}.established '0'
       atf_sysctl_wr ${key_hklist}.created '0'

       #
       # disestablish the running hook
       #
       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk0}.established '1'
       atf_sysctl_wr ${key_hk0}.stopping '1'

       atf_sysctl_wr ${key_hklist}.dohooks '1'

       atf_sysctl_wait ${key_hk0}.stopped '1'
       atf_sysctl_wr ${key_hk0}.established '0'

       atf_sysctl_wr ${key_hklist}.dohooks '0'
       atf_sysctl_wr ${key_hklist}.created '0'
}

simplehook_disestablish_cleanup()
{
       export RUMP_SERVER=$SOCK

       $DEBUG && rump.sysctl -e kern.simplehook_tester
       $DEBUG && $HIJACKING dmesg
       rump.halt
}

atf_test_case simplehook_nolock cleanup
simplehook_nolock_head()
{

       atf_set "descr" "tests for hook that does not use lock in it"
       atf_set "require.progs" "rump_server"
}

simplehook_nolock_body()
{
       local key_hklist="kern.simplehook_tester.hook_list"
       local key_hk="kern.simplehook_tester.nbhook"

       rump_server -lrumpkern_simplehook_tester $SOCK

       export RUMP_SERVER=$SOCK
       $DEBUG && rump.sysctl -e kern.simplehook_tester
       atf_check -s exit:0 -o ignore rump.sysctl -e kern.simplehook_tester

       atf_sysctl_wr ${key_hklist}.created '1'
       atf_sysctl_wr ${key_hk}.established '1'

       atf_sysctl_wr ${key_hklist}.dohooks '1'
       atf_sysctl_wr ${key_hk}.established '0'
       atf_sysctl_wr ${key_hklist}.dohooks '0'

       atf_sysctl_wr ${key_hklist}.created '0'
}

simplehook_nolock_cleanup()
{
       export RUMP_SERVER=$SOCK

       $DEBUG && rump.sysctl -e kern.simplehook_tester
       $DEBUG && $HIJACKING dmesg
       rump.halt
}

atf_init_test_cases()
{

       atf_add_test_case simplehook_basic
       atf_add_test_case simplehook_disestablish
       atf_add_test_case simplehook_nolock
}

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