1 #!/bin/sh 2 # Copyright (c) International Business Machines Corp., 2006 3 # Copyright (c) 2015-2017 Oracle and/or its affiliates. All Rights Reserved. 4 # Copyright (c) 2017 Petr Vorel <pvorel (at] suse.cz> 5 # 6 # This program is free software; you can redistribute it and/or 7 # modify it under the terms of the GNU General Public License as 8 # published by the Free Software Foundation; either version 2 of 9 # the License, or (at your option) any later version. 10 # 11 # This program is distributed in the hope that it would be useful, 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 # GNU General Public License for more details. 15 # 16 # You should have received a copy of the GNU General Public License 17 # along with this program. If not, see <http://www.gnu.org/licenses/>. 18 # 19 # Author: Petr Vorel <pvorel (at] suse.cz> 20 # Author: Alexey Kodanev <alexey.kodanev (at] oracle.com> 21 # 22 # Library for all network/stress/ tests. 23 # NOTE: More information about network variables can be found 24 # in test_net.sh and testcases/network/stress/README. 25 26 export TCID="${TCID:-$(basename $0)}" 27 28 . test_net.sh 29 30 ipver=${TST_IPV6:-4} 31 32 # Netmask of for the tested network 33 IPV4_NETMASK="255.255.255.0" 34 IPV4_NETMASK_NUM=24 35 36 # Multicast address and it's prefix 37 MCAST_IPV4_ADDR_PREFIX="224.10" 38 MCAST_IPV4_ADDR="${MCAST_IPV4_ADDR_PREFIX}.10.1" 39 MCAST_IPV6_ADDR_PREFIX="ff0e::1111" 40 MCAST_IPV6_ADDR="${MCAST_IPV6_ADDR_PREFIX}:1" 41 42 # Setup for tests using netstress. 43 netstress_setup() 44 { 45 tst_require_root 46 tst_check_cmds ip pgrep pkill 47 trap "tst_brkm TBROK 'test interrupted'" INT 48 } 49 50 # Cleanup for tests using netstress. 51 netstress_cleanup() 52 { 53 # Stop the background TCP traffic 54 pkill -13 -x netstress 55 tst_rhost_run -c "pkill -13 -x netstress" 56 } 57 58 # restore_ipaddr [TYPE] [LINK] [LOCAL_IFACE] [REMOTE_IFACE] 59 # TYPE: { lhost | rhost }; Default value is 'lhost'. 60 # LINK: link number starting from 0. Default value is '0'. 61 # LOCAL_IFACE: local iface name. 62 # REMOTE_IFACE: local iface name. 63 restore_ipaddr() 64 { 65 local type="${1:-lhost}" 66 local link_num="${2:-0}" 67 local iface_loc=${3:-$(tst_iface lhost $link_num)} 68 local iface_rmt=${4:-$(tst_iface rhost $link_num)} 69 70 tst_restore_ipaddr $type $link_num || return $? 71 [ $type = "lhost" ] && tst_wait_ipv6_dad $iface_loc $iface_rmt 72 } 73 74 # Check connectivity with tst_ping. 75 # check_connectivity SRC_IFACE DST_ADDR [CNT] 76 # SRC_IFACE: source interface name. 77 # DST_ADDR: destination IPv4 or IPv6 address. 78 # CNT: loop step. 79 check_connectivity() 80 { 81 local src_iface="${1}" 82 local dst_addr="${2}" 83 local cnt="${3:-}" 84 local cnt_msg 85 86 [ -n "$cnt" ] && cnt_msg=" (step $cnt)" 87 88 tst_resm TINFO "ping through $src_iface iface to ${dst_addr}$cnt_msg" 89 90 tst_ping $src_iface $dst_addr 91 } 92 93 # check_connectivity_interval CNT [RESTORE] [SRC_IFACE] [DST_ADDR] 94 # CNT: loop step. 95 # RESTORE: whether restore ip addr. 96 # SRC_IFACE: source interface name. 97 # DST_ADDR: destination IPv4 or IPv6 address. 98 check_connectivity_interval() 99 { 100 local cnt="$1" 101 local restore="${2:-false}" 102 local src_iface="${3:-$(tst_iface)}" 103 local dst_addr="${4:-$(tst_ipaddr rhost)}" 104 105 [ $CHECK_INTERVAL -eq 0 ] && return 106 107 [ $(($cnt % $CHECK_INTERVAL)) -ne 0 ] && return 108 109 [ "$restore" != "false" ] && restore_ipaddr 110 111 check_connectivity $src_iface $dst_addr $cnt 112 } 113 114 # Run netstress process on both lhost and rhost. 115 # make_background_tcp_traffic [IP] 116 # IP: server IP; Default value is $(tst_ipaddr). 117 make_background_tcp_traffic() 118 { 119 pgrep -x netstress > /dev/null && return 120 121 local ip="${1:-$(tst_ipaddr)}" 122 local port=$(tst_get_unused_port ipv${ipver} stream) 123 124 netstress -R 3 -g $port > /dev/null 2>&1 & 125 tst_rhost_run -b -c "netstress -l -H $ip -g $port" 126 } 127
