0faa565bc4
This library is always sourced in the context where lib.sh has already been sourced as well. Therefore drop the explicit sourcing and expect the client to already have done it. This will simplify moving some of the clients to a different directory. Signed-off-by: Petr Machata <petrm@nvidia.com> Link: https://lore.kernel.org/r/a4da5e9cd42a34cbace917a048ca71081719d6ac.1711464583.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
348 lines
8.3 KiB
Bash
348 lines
8.3 KiB
Bash
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
|
|
# topology. Supports both flat and hierarchical models.
|
|
#
|
|
# Flat Model:
|
|
# Overlay and underlay share the same VRF.
|
|
# SW1 uses default VRF so tunnel has no bound dev.
|
|
# SW2 uses non-default VRF tunnel has a bound dev.
|
|
# +-------------------------+
|
|
# | H1 |
|
|
# | $h1 + |
|
|
# | 192.0.2.1/28 | |
|
|
# +-------------------|-----+
|
|
# |
|
|
# +-------------------|-----+
|
|
# | SW1 | |
|
|
# | $ol1 + |
|
|
# | 192.0.2.2/28 |
|
|
# | |
|
|
# | + g1a (gre) |
|
|
# | loc=192.0.2.65 |
|
|
# | rem=192.0.2.66 --. |
|
|
# | tos=inherit | |
|
|
# | .------------------' |
|
|
# | | |
|
|
# | v |
|
|
# | + $ul1.111 (vlan) |
|
|
# | | 192.0.2.129/28 |
|
|
# | \ |
|
|
# | \_______ |
|
|
# | | |
|
|
# |VRF default + $ul1 |
|
|
# +------------|------------+
|
|
# |
|
|
# +------------|------------+
|
|
# | SW2 + $ul2 |
|
|
# | _______| |
|
|
# | / |
|
|
# | / |
|
|
# | + $ul2.111 (vlan) |
|
|
# | ^ 192.0.2.130/28 |
|
|
# | | |
|
|
# | | |
|
|
# | '------------------. |
|
|
# | + g2a (gre) | |
|
|
# | loc=192.0.2.66 | |
|
|
# | rem=192.0.2.65 --' |
|
|
# | tos=inherit |
|
|
# | |
|
|
# | $ol2 + |
|
|
# | 192.0.2.17/28 | |
|
|
# | VRF v$ol2 | |
|
|
# +-------------------|-----+
|
|
# |
|
|
# +-------------------|-----+
|
|
# | H2 | |
|
|
# | $h2 + |
|
|
# | 192.0.2.18/28 |
|
|
# +-------------------------+
|
|
#
|
|
# Hierarchical model:
|
|
# The tunnel is bound to a device in a different VRF
|
|
#
|
|
# +---------------------------+
|
|
# | H1 |
|
|
# | $h1 + |
|
|
# | 192.0.2.1/28 | |
|
|
# +-------------------|-------+
|
|
# |
|
|
# +-------------------|-------+
|
|
# | SW1 | |
|
|
# | +-----------------|-----+ |
|
|
# | | $ol1 + | |
|
|
# | | 192.0.2.2/28 | |
|
|
# | | | |
|
|
# | | + g1a (gre) | |
|
|
# | | rem=192.0.2.66 | |
|
|
# | | tos=inherit | |
|
|
# | | loc=192.0.2.65 | |
|
|
# | | ^ | |
|
|
# | | VRF v$ol1 | | |
|
|
# | +-----------|-----------+ |
|
|
# | | |
|
|
# | +-----------|-----------+ |
|
|
# | | VRF v$ul1 | | |
|
|
# | | | | |
|
|
# | | | | |
|
|
# | | v | |
|
|
# | | dummy1 + | |
|
|
# | | 192.0.2.65 | |
|
|
# | | .-------' | |
|
|
# | | | | |
|
|
# | | v | |
|
|
# | | + $ul1.111 (vlan) | |
|
|
# | | | 192.0.2.129/28 | |
|
|
# | | \ | |
|
|
# | | \_____ | |
|
|
# | | | | |
|
|
# | | + $ul1 | |
|
|
# | +----------|------------+ |
|
|
# +------------|--------------+
|
|
# |
|
|
# +------------|--------------+
|
|
# | SW2 | |
|
|
# | +----------|------------+ |
|
|
# | | + $ul2 | |
|
|
# | | _____| | |
|
|
# | | / | |
|
|
# | | / | |
|
|
# | | | $ul2.111 (vlan) | |
|
|
# | | + 192.0.2.130/28 | |
|
|
# | | ^ | |
|
|
# | | | | |
|
|
# | | '-------. | |
|
|
# | | dummy2 + | |
|
|
# | | 192.0.2.66 | |
|
|
# | | ^ | |
|
|
# | | | | |
|
|
# | | | | |
|
|
# | | VRF v$ul2 | | |
|
|
# | +-----------|-----------+ |
|
|
# | | |
|
|
# | +-----------|-----------+ |
|
|
# | | VRF v$ol2 | | |
|
|
# | | | | |
|
|
# | | v | |
|
|
# | | g2a (gre)+ | |
|
|
# | | loc=192.0.2.66 | |
|
|
# | | rem=192.0.2.65 | |
|
|
# | | tos=inherit | |
|
|
# | | | |
|
|
# | | $ol2 + | |
|
|
# | | 192.0.2.17/28 | | |
|
|
# | +-----------------|-----+ |
|
|
# +-------------------|-------+
|
|
# |
|
|
# +-------------------|-------+
|
|
# | H2 | |
|
|
# | $h2 + |
|
|
# | 192.0.2.18/28 |
|
|
# +---------------------------+
|
|
|
|
h1_create()
|
|
{
|
|
simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
|
|
ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
|
|
}
|
|
|
|
h1_destroy()
|
|
{
|
|
ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
|
|
simple_if_fini $h1 192.0.2.1/28
|
|
}
|
|
|
|
h2_create()
|
|
{
|
|
simple_if_init $h2 192.0.2.18/28
|
|
ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
|
|
}
|
|
|
|
h2_destroy()
|
|
{
|
|
ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
|
|
simple_if_fini $h2 192.0.2.18/28
|
|
}
|
|
|
|
sw1_flat_create()
|
|
{
|
|
local type=$1; shift
|
|
local ol1=$1; shift
|
|
local ul1=$1; shift
|
|
|
|
ip link set dev $ol1 up
|
|
__addr_add_del $ol1 add "192.0.2.2/28"
|
|
|
|
ip link set dev $ul1 up
|
|
vlan_create $ul1 111 "" 192.0.2.129/28
|
|
|
|
tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit "$@"
|
|
ip link set dev g1a up
|
|
__addr_add_del g1a add "192.0.2.65/32"
|
|
|
|
ip route add 192.0.2.66/32 via 192.0.2.130
|
|
|
|
ip route add 192.0.2.16/28 nexthop dev g1a
|
|
}
|
|
|
|
sw1_flat_destroy()
|
|
{
|
|
local ol1=$1; shift
|
|
local ul1=$1; shift
|
|
|
|
ip route del 192.0.2.16/28
|
|
|
|
ip route del 192.0.2.66/32 via 192.0.2.130
|
|
__simple_if_fini g1a 192.0.2.65/32
|
|
tunnel_destroy g1a
|
|
|
|
vlan_destroy $ul1 111
|
|
__simple_if_fini $ul1
|
|
__simple_if_fini $ol1 192.0.2.2/28
|
|
}
|
|
|
|
sw2_flat_create()
|
|
{
|
|
local type=$1; shift
|
|
local ol2=$1; shift
|
|
local ul2=$1; shift
|
|
|
|
simple_if_init $ol2 192.0.2.17/28
|
|
__simple_if_init $ul2 v$ol2
|
|
vlan_create $ul2 111 v$ol2 192.0.2.130/28
|
|
|
|
tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 \
|
|
"$@"
|
|
__simple_if_init g2a v$ol2 192.0.2.66/32
|
|
|
|
ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
|
|
ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
|
|
}
|
|
|
|
sw2_flat_destroy()
|
|
{
|
|
local ol2=$1; shift
|
|
local ul2=$1; shift
|
|
|
|
ip route del vrf v$ol2 192.0.2.0/28
|
|
|
|
ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
|
|
__simple_if_fini g2a 192.0.2.66/32
|
|
tunnel_destroy g2a
|
|
|
|
vlan_destroy $ul2 111
|
|
__simple_if_fini $ul2
|
|
simple_if_fini $ol2 192.0.2.17/28
|
|
}
|
|
|
|
sw1_hierarchical_create()
|
|
{
|
|
local type=$1; shift
|
|
local ol1=$1; shift
|
|
local ul1=$1; shift
|
|
|
|
simple_if_init $ol1 192.0.2.2/28
|
|
simple_if_init $ul1
|
|
ip link add name dummy1 type dummy
|
|
__simple_if_init dummy1 v$ul1 192.0.2.65/32
|
|
|
|
vlan_create $ul1 111 v$ul1 192.0.2.129/28
|
|
tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit dev dummy1 \
|
|
"$@"
|
|
ip link set dev g1a master v$ol1
|
|
|
|
ip route add vrf v$ul1 192.0.2.66/32 via 192.0.2.130
|
|
ip route add vrf v$ol1 192.0.2.16/28 nexthop dev g1a
|
|
}
|
|
|
|
sw1_hierarchical_destroy()
|
|
{
|
|
local ol1=$1; shift
|
|
local ul1=$1; shift
|
|
|
|
ip route del vrf v$ol1 192.0.2.16/28
|
|
ip route del vrf v$ul1 192.0.2.66/32
|
|
|
|
tunnel_destroy g1a
|
|
vlan_destroy $ul1 111
|
|
|
|
__simple_if_fini dummy1 192.0.2.65/32
|
|
ip link del dev dummy1
|
|
|
|
simple_if_fini $ul1
|
|
simple_if_fini $ol1 192.0.2.2/28
|
|
}
|
|
|
|
sw2_hierarchical_create()
|
|
{
|
|
local type=$1; shift
|
|
local ol2=$1; shift
|
|
local ul2=$1; shift
|
|
|
|
simple_if_init $ol2 192.0.2.17/28
|
|
simple_if_init $ul2
|
|
|
|
ip link add name dummy2 type dummy
|
|
__simple_if_init dummy2 v$ul2 192.0.2.66/32
|
|
|
|
vlan_create $ul2 111 v$ul2 192.0.2.130/28
|
|
tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev dummy2 \
|
|
"$@"
|
|
ip link set dev g2a master v$ol2
|
|
|
|
ip route add vrf v$ul2 192.0.2.65/32 via 192.0.2.129
|
|
ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
|
|
}
|
|
|
|
sw2_hierarchical_destroy()
|
|
{
|
|
local ol2=$1; shift
|
|
local ul2=$1; shift
|
|
|
|
ip route del vrf v$ol2 192.0.2.0/28
|
|
ip route del vrf v$ul2 192.0.2.65/32
|
|
|
|
tunnel_destroy g2a
|
|
vlan_destroy $ul2 111
|
|
|
|
__simple_if_fini dummy2 192.0.2.66/32
|
|
ip link del dev dummy2
|
|
|
|
simple_if_fini $ul2
|
|
simple_if_fini $ol2 192.0.2.17/28
|
|
}
|
|
|
|
topo_mtu_change()
|
|
{
|
|
local mtu=$1
|
|
|
|
ip link set mtu $mtu dev $h1
|
|
ip link set mtu $mtu dev $ol1
|
|
ip link set mtu $mtu dev g1a
|
|
ip link set mtu $mtu dev $ul1
|
|
ip link set mtu $mtu dev $ul1.111
|
|
ip link set mtu $mtu dev $h2
|
|
ip link set mtu $mtu dev $ol2
|
|
ip link set mtu $mtu dev g2a
|
|
ip link set mtu $mtu dev $ul2
|
|
ip link set mtu $mtu dev $ul2.111
|
|
}
|
|
|
|
test_mtu_change()
|
|
{
|
|
local encap=$1; shift
|
|
|
|
RET=0
|
|
|
|
ping_do $h1 192.0.2.18 "-s 1800 -w 3"
|
|
check_fail $? "ping $encap should not pass with size 1800"
|
|
|
|
RET=0
|
|
|
|
topo_mtu_change 2000
|
|
ping_do $h1 192.0.2.18 "-s 1800 -w 3"
|
|
check_err $?
|
|
log_test "ping $encap packet size 1800 after MTU change"
|
|
}
|