tests/net/mpls/t_ldp_regen.sh

   1 # $NetBSD: t_ldp_regen.sh,v 1.6 2015/05/13 12:01:24 martin Exp $
   2 #
   3 # Copyright (c) 2013 The NetBSD Foundation, Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 # IP/MPLS & LDP label reallocation test
  29 # Create 4 routers connected like this: R1--R2--R3--R4--
  30 # The goal is to push packets from R1 to the R4 shmif1 (the right one) interface
  31 # Enable MPLS forwarding on R2
  32 # Disable IP forwarding and enable MPLS forwarding on R3
  33 # Start ldpd and wait for adjancencies to come up
  34 # Add an alias on shmif1 on R4 for which we already have a route on R3
  35 # Now: * R4 should install label IMPLNULL for that prefix
  36 #      * R3 should realloc the target label from IMPLNULL to something else
  37
  38
  39 RUMP_SERVER1=unix://./r1
  40 RUMP_SERVER2=unix://./r2
  41 RUMP_SERVER3=unix://./r3
  42 RUMP_SERVER4=unix://./r4
  43
  44 RUMP_LIBS="-lrumpnet -lrumpnet_net -lrumpnet_netmpls -lrumpnet_netinet -lrumpnet_netinet6 -lrumpnet_shmif"
  45 LDP_FLAGS=""
  46
  47 atf_test_case ldp_regen cleanup
  48 ldp_regen_head() {
  49
  50         atf_set "descr" "IP/MPLS and LDP label regeneration test"
  51         atf_set "require.progs" "rump_server"
  52         atf_set "use.fs" "true"
  53 }
  54
  55 newaddr_and_ping() {
  56
  57         # Add new address on R4
  58         RUMP_SERVER=${RUMP_SERVER4} atf_check -s exit:0 \
  59                 rump.ifconfig shmif1 10.0.5.1/24 alias
  60         RUMP_SERVER=${RUMP_SERVER4} atf_check -s exit:0 \
  61                 rump.ifconfig -w 60
  62
  63         # Now ldpd on R5 should take notice of the new route and announce it
  64         # to R4's ldpd. ldpd on R4 should verify that the next hop
  65         # corresponds to its routing table and change its tag entry
  66         RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
  67                 rump.ping -n -o -w 5 10.0.5.1
  68 }
  69
  70 create_servers() {
  71
  72         # allows us to run as normal user
  73         ulimit -r 400
  74
  75         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER1}
  76         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER2}
  77         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER3}
  78         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER4}
  79
  80         # LDP HIJACK
  81         export RUMPHIJACK=path=/rump,socket=all,sysctl=yes
  82         export LD_PRELOAD=/usr/lib/librumphijack.so
  83
  84         # Setup first server
  85         export RUMP_SERVER=${RUMP_SERVER1}
  86         atf_check -s exit:0 rump.ifconfig shmif0 create
  87         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1
  88         atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.1/24
  89         atf_check -s exit:0 rump.ifconfig mpls0 create up
  90         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
  91         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.1.2
  92         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.1.2
  93         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
  94
  95         # Setup second server
  96         export RUMP_SERVER=${RUMP_SERVER2}
  97         atf_check -s exit:0 rump.ifconfig shmif0 create
  98         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1
  99         atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.2/24
 100         atf_check -s exit:0 rump.ifconfig shmif1 create
 101         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom2
 102         atf_check -s exit:0 rump.ifconfig shmif1 10.0.2.1/24
 103         atf_check -s exit:0 rump.ifconfig mpls0 create up
 104         atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1
 105         atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1
 106         # This one should still do ip forwarding because it announces IMPLNULL
 107         # for the 10.0.1.0/24 subnet
 108         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.2.2
 109         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.2.2
 110         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 111
 112         # Setup third server
 113         export RUMP_SERVER=${RUMP_SERVER3}
 114         atf_check -s exit:0 rump.ifconfig shmif0 create
 115         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom2
 116         atf_check -s exit:0 rump.ifconfig shmif0 10.0.2.2/24
 117         atf_check -s exit:0 rump.ifconfig shmif1 create
 118         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom3
 119         atf_check -s exit:0 rump.ifconfig shmif1 10.0.3.1/24
 120         atf_check -s exit:0 rump.ifconfig mpls0 create up
 121         atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1
 122         atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1
 123         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
 124         atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.2.1
 125         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.3.2
 126         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.3.2
 127         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 128
 129         # Setup fourth server
 130         export RUMP_SERVER=${RUMP_SERVER4}
 131         atf_check -s exit:0 rump.ifconfig shmif0 create
 132         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom3
 133         atf_check -s exit:0 rump.ifconfig shmif0 10.0.3.2/24
 134         atf_check -s exit:0 rump.ifconfig shmif1 create
 135         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom4
 136         atf_check -s exit:0 rump.ifconfig shmif1 10.0.4.1/24
 137         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
 138         atf_check -s exit:0 rump.ifconfig mpls0 create up
 139         atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.3.1
 140         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 141
 142         unset RUMP_SERVER
 143         unset LD_PRELOAD
 144         unset RUMPHIJACK
 145 }
 146
 147 wait_ldp_ok() {
 148
 149         RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
 150                 rump.ifconfig -w 60
 151         RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
 152                 rump.ping -o -w 60 10.0.4.1
 153 }
 154
 155 docleanup() {
 156
 157         RUMP_SERVER=${RUMP_SERVER1} rump.halt
 158         RUMP_SERVER=${RUMP_SERVER2} rump.halt
 159         RUMP_SERVER=${RUMP_SERVER3} rump.halt
 160         RUMP_SERVER=${RUMP_SERVER4} rump.halt
 161 }
 162
 163 ldp_regen_body() {
 164
 165         if sysctl machdep.cpu_brand 2>/dev/null | grep QEMU >/dev/null 2>&1
 166         then
 167             atf_skip "unreliable under qemu, skip until PR kern/43997 fixed"
 168         fi
 169         create_servers
 170         wait_ldp_ok
 171         newaddr_and_ping
 172 }
 173
 174 ldp_regen_cleanup() {
 175
 176         docleanup
 177 }
 178
 179 atf_init_test_cases() {
 180
 181         atf_add_test_case ldp_regen
 182 }