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|
#!/bin/bash
#
# Copyright (C) 2023 Masatake YAMATO <yamato@redhat.com>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="PING and PINGv6 sockets"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_skip_nonroot
. "$TS_SELF"/lsfd-functions.bash
ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_check_prog "id"
ts_check_native_byteorder
ts_cd "$TS_OUTDIR"
PID=
FD=3
EXPR=(
'(TYPE == "PING") and (FD == 3)'
'(TYPE == "PINGv6") and (FD == 3)'
)
FACTORY=(
ping
ping6
)
TYPE=(
'PING'
'PINGv6'
)
COLNS=(
INET
INET6
)
ID=9999
range_check()
{
local v=$1
local min=$2
local max=$3
[[ $min -le $v && $v -le $max ]]
return $?
}
ping_group_range_check()
{
local g
local group_min group_max
if ! read group_min group_max < /proc/sys/net/ipv4/ping_group_range; then
# We can say nothing. Just allow to go ahead.
return 0
fi
if [[ -z "$group_min" || -z "$group_max" ]]; then
# We can say nothing. Just allow to go ahead.
return 0
fi
for g in $(id -G); do
if range_check "$g" "$group_min" "$group_max"; then
return 0
fi
done
return 1
}
ERRMSG=
for i in 0 1; do
ERRMSG=$("$TS_HELPER_MKFDS" -c -q "${FACTORY[$i]}" 3 id=$ID 2>&1)
ERR="$?"
if [[ "$ERR" == "$EACCES" ]]; then
case "$ERRMSG" in
*bind*)
MSG="making ${TYPE[$i]} socket with specifying id is not allowed (blocked by SELinux?)"
;;
*socket*)
if ! ping_group_range_check; then
MSG="the group(s) ($(id -G)) of the process is not in the expected range"
MSG+=" [$(cat /proc/sys/net/ipv4/ping_group_range)])"
else
MSG="$ERRMSG"
fi
;;
*)
MSG="$ERRMSG"
;;
esac
ts_skip "${MSG}"
elif [[ "$ERR" != 0 ]]; then
ts_skip "making ${TYPE[$i]} socket is failed ($ERR: $ERRMSG)"
fi
done
for i in 0 1; do
ts_init_subtest "${FACTORY[$i]}"
{
coproc MKFDS { "$TS_HELPER_MKFDS" "${FACTORY[$i]}" $FD id=$ID; }
if read -r -u "${MKFDS[0]}" PID; then
${TS_CMD_LSFD} -n \
-o ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,${COLNS[$i]}.LADDR,${COLNS[$i]}.RADDR,PING.ID \
-p "${PID}" -Q "${EXPR[$i]}"
echo "ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,${COLNS[$i]}.LADDR,${COLNS[$i]}.RADDR,PING.ID": $?
echo DONE >&"${MKFDS[1]}"
fi
wait "${MKFDS_PID}"
coproc MKFDS { "$TS_HELPER_MKFDS" "${FACTORY[$i]}" $FD id=$ID connect=0; }
if read -r -u "${MKFDS[0]}" PID; then
${TS_CMD_LSFD} -n \
-o ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,${COLNS[$i]}.LADDR,${COLNS[$i]}.RADDR,PING.ID \
-p "${PID}" -Q "${EXPR[$i]}"
echo "ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,${COLNS[$i]}.LADDR,${COLNS[$i]}.RADDR,PING.ID": $?
echo DONE >&"${MKFDS[1]}"
fi
} > "$TS_OUTPUT" 2>&1
wait "${MKFDS_PID}"
ts_finalize_subtest
done
ts_finalize
|
