1#!/bin/sh 2 3ntest=1 4 5check_bind() { 6 local host idtype name proto port udpflag 7 8 host="127.0.0.1" 9 timeout=1 10 11 idtype=${1} 12 name=${2} 13 proto=${3} 14 port=${4} 15 16 [ "${proto}" = "udp" ] && udpflag="-u" 17 18 out=$( 19 case "${idtype}" in 20 uid|gid) 21 ( echo -n | su -m ${name} -c "nc ${udpflag} -l -w ${timeout} $host $port" 2>&1 ) & 22 ;; 23 jail) 24 kill $$ 25 ;; 26 *) 27 kill $$ 28 esac 29 sleep 0.3 30 echo | nc ${udpflag} -w ${timeout} $host $port >/dev/null 2>&1 31 wait 32 ) 33 case "${out}" in 34 "nc: Permission denied"*|"nc: Operation not permitted"*) 35 echo fl 36 ;; 37 "") 38 echo ok 39 ;; 40 *) 41 echo ${out} 42 ;; 43 esac 44} 45 46bind_test() { 47 local expect_without_rule expect_with_rule idtype name proto port 48 49 expect_without_rule=${1} 50 expect_with_rule=${2} 51 idtype=${3} 52 name=${4} 53 proto=${5} 54 port=${6} 55 56 sysctl security.mac.portacl.rules= >/dev/null 57 out=$(check_bind ${idtype} ${name} ${proto} ${port}) 58 if [ "${out}" = "${expect_without_rule}" ]; then 59 echo "ok ${ntest}" 60 elif [ "${out}" = "ok" -o "${out}" = "fl" ]; then 61 echo "not ok ${ntest} # '${out}' != '${expect_without_rule}'" 62 else 63 echo "not ok ${ntest} # unexpected output: '${out}'" 64 fi 65 : $(( ntest += 1 )) 66 67 if [ "${idtype}" = "uid" ]; then 68 idstr=$(id -u ${name}) 69 elif [ "${idtype}" = "gid" ]; then 70 idstr=$(id -g ${name}) 71 else 72 idstr=${name} 73 fi 74 sysctl security.mac.portacl.rules=${idtype}:${idstr}:${proto}:${port} >/dev/null 75 out=$(check_bind ${idtype} ${name} ${proto} ${port}) 76 if [ "${out}" = "${expect_with_rule}" ]; then 77 echo "ok ${ntest}" 78 elif [ "${out}" = "ok" -o "${out}" = "fl" ]; then 79 echo "not ok ${ntest} # '${out}' != '${expect_with_rule}'" 80 else 81 echo "not ok ${ntest} # unexpected output: '${out}'" 82 fi 83 : $(( ntest += 1 )) 84 85 sysctl security.mac.portacl.rules= >/dev/null 86} 87 88portacl_enabled=$(sysctl -n security.mac.portacl.enabled) 89reserved_high=$(sysctl -n net.inet.ip.portrange.reservedhigh) 90suser_exempt=$(sysctl -n security.mac.portacl.suser_exempt) 91port_high=$(sysctl -n security.mac.portacl.port_high) 92 93restore_settings() { 94 sysctl -n net.inet.ip.portrange.reservedhigh=${reserved_high} >/dev/null 95 sysctl -n security.mac.portacl.suser_exempt=${suser_exempt} >/dev/null 96 sysctl -n security.mac.portacl.port_high=${port_high} >/dev/null 97 sysctl -n security.mac.portacl.enabled=${portacl_enabled} >/dev/null 98} 99