tests/net/mpls/t_ldp_regen.sh

   1 # $NetBSD: t_ldp_regen.sh,v 1.2 2013/07/27 14:36:39 kefren 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_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=${RUMP_SERVER4} atf_check -s exit:0 \
  59                 rump.ifconfig shmif1 10.0.5.1/24 alias
  60
  61         # Now ldpd on R5 should take notice of the new route and announce it
  62         # to R4's ldpd. ldpd on R4 should verify that the next hop
  63         # corresponds to its routing table and change its tag entry
  64         RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
  65                 rump.ping -n -o -w 5 10.0.5.1
  66 }
  67
  68 create_servers() {
  69
  70         # allows us to run as normal user
  71         ulimit -r 400
  72
  73         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER1}
  74         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER2}
  75         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER3}
  76         atf_check -s exit:0 rump_server ${RUMP_LIBS} ${RUMP_SERVER4}
  77
  78         # LDP HIJACK
  79         export RUMPHIJACK=path=/rump,socket=all,sysctl=yes
  80         export LD_PRELOAD=/usr/lib/librumphijack.so
  81
  82         # Setup first server
  83         export RUMP_SERVER=${RUMP_SERVER1}
  84         atf_check -s exit:0 rump.ifconfig shmif0 create
  85         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1
  86         atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.1/24
  87         atf_check -s exit:0 rump.ifconfig mpls0 create up
  88         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
  89         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.1.2
  90         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.1.2
  91         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
  92
  93         # Setup second server
  94         export RUMP_SERVER=${RUMP_SERVER2}
  95         atf_check -s exit:0 rump.ifconfig shmif0 create
  96         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom1
  97         atf_check -s exit:0 rump.ifconfig shmif0 10.0.1.2/24
  98         atf_check -s exit:0 rump.ifconfig shmif1 create
  99         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom2
 100         atf_check -s exit:0 rump.ifconfig shmif1 10.0.2.1/24
 101         atf_check -s exit:0 rump.ifconfig mpls0 create up
 102         atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1
 103         atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1
 104         # This one should still do ip forwarding because it announces IMPLNULL
 105         # for the 10.0.1.0/24 subnet
 106         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.2.2
 107         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.2.2
 108         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 109
 110         # Setup third server
 111         export RUMP_SERVER=${RUMP_SERVER3}
 112         atf_check -s exit:0 rump.ifconfig shmif0 create
 113         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom2
 114         atf_check -s exit:0 rump.ifconfig shmif0 10.0.2.2/24
 115         atf_check -s exit:0 rump.ifconfig shmif1 create
 116         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom3
 117         atf_check -s exit:0 rump.ifconfig shmif1 10.0.3.1/24
 118         atf_check -s exit:0 rump.ifconfig mpls0 create up
 119         atf_check -s exit:0 rump.sysctl -q -w net.mpls.accept=1
 120         atf_check -s exit:0 rump.sysctl -q -w net.mpls.forwarding=1
 121         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
 122         atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.2.1
 123         atf_check -s exit:0 rump.route -q add 10.0.4.0/24 10.0.3.2
 124         atf_check -s exit:0 rump.route -q add 10.0.5.0/24 10.0.3.2
 125         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 126
 127         # Setup fourth server
 128         export RUMP_SERVER=${RUMP_SERVER4}
 129         atf_check -s exit:0 rump.ifconfig shmif0 create
 130         atf_check -s exit:0 rump.ifconfig shmif0 linkstr ./shdom3
 131         atf_check -s exit:0 rump.ifconfig shmif0 10.0.3.2/24
 132         atf_check -s exit:0 rump.ifconfig shmif1 create
 133         atf_check -s exit:0 rump.ifconfig shmif1 linkstr ./shdom4
 134         atf_check -s exit:0 rump.ifconfig shmif1 10.0.4.1/24
 135         atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=0
 136         atf_check -s exit:0 rump.ifconfig mpls0 create up
 137         atf_check -s exit:0 rump.route -q add 10.0.1.0/24 10.0.3.1
 138         atf_check -s exit:0 /usr/sbin/ldpd ${LDP_FLAGS}
 139
 140         unset RUMP_SERVER
 141         unset LD_PRELOAD
 142         unset RUMPHIJACK
 143 }
 144
 145 wait_ldp_ok() {
 146
 147         RUMP_SERVER=${RUMP_SERVER1} atf_check -s exit:0 -o ignore -e ignore \
 148                 rump.ping -o -w 60 10.0.4.1
 149 }
 150
 151 docleanup() {
 152
 153         RUMP_SERVER=${RUMP_SERVER1} rump.halt
 154         RUMP_SERVER=${RUMP_SERVER2} rump.halt
 155         RUMP_SERVER=${RUMP_SERVER3} rump.halt
 156         RUMP_SERVER=${RUMP_SERVER4} rump.halt
 157 }
 158
 159 ldp_regen_body() {
 160
 161         create_servers
 162         wait_ldp_ok
 163         newaddr_and_ping
 164 }
 165
 166 ldp_regen_cleanup() {
 167
 168         docleanup
 169 }
 170
 171 atf_init_test_cases() {
 172
 173         atf_add_test_case ldp_regen
 174 }