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pf tests: ensure that traceroutes using ICMP work

Browse source 
PR:		280701
MFC after:	1 week
Sponsored by:	Rubicon Communications, LLC ("Netgate")
This commit is contained in:
Kristof Provost 2024-08-12 12:14:43 +02:00
parent 2da98eef1f
commit 34063cb714
2 changed files with 130 additions and 0 deletions
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65
tests/sys/netpfil/pf/icmp.sh
View file

@ -71,7 +71,72 @@ cve_2019_5598_cleanup()
pft_cleanup
}
atf_test_case "ttl_exceeded" "cleanup"
ttl_exceeded_head()
{
atf_set descr 'Test that we correctly translate TTL exceeded back'
atf_set require.user root
}
ttl_exceeded_body()
{
pft_init
epair_srv=$(vnet_mkepair)
epair_int=$(vnet_mkepair)
epair_cl=$(vnet_mkepair)
vnet_mkjail srv ${epair_srv}a
jexec srv ifconfig ${epair_srv}a 192.0.2.1/24 up
jexec srv route add default 192.0.2.2
vnet_mkjail int ${epair_srv}b ${epair_int}a
jexec int sysctl net.inet.ip.forwarding=1
jexec int ifconfig ${epair_srv}b 192.0.2.2/24 up
jexec int ifconfig ${epair_int}a 203.0.113.2/24 up
vnet_mkjail nat ${epair_int}b ${epair_cl}b
jexec nat ifconfig ${epair_int}b 203.0.113.1/24 up
jexec nat ifconfig ${epair_cl}b 198.51.100.2/24 up
jexec nat sysctl net.inet.ip.forwarding=1
jexec nat route add default 203.0.113.2
vnet_mkjail cl ${epair_cl}a
jexec cl ifconfig ${epair_cl}a 198.51.100.1/24 up
jexec cl route add default 198.51.100.2
jexec nat pfctl -e
pft_set_rules nat \
"nat on ${epair_int}b from 198.51.100.0/24 -> (${epair_int}b)" \
"pass"
# Sanity checks
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 198.51.100.2
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 203.0.113.1
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 203.0.113.2
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 192.0.2.1
echo "UDP"
atf_check -s exit:0 -e ignore -o match:".*203.0.113.2.*" \
jexec cl traceroute 192.0.2.1
jexec nat pfctl -Fs
echo "ICMP"
atf_check -s exit:0 -e ignore -o match:".*203.0.113.2.*" \
jexec cl traceroute -I 192.0.2.1
}
ttl_exceeded_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "cve_2019_5598"
atf_add_test_case "ttl_exceeded"
}

65
tests/sys/netpfil/pf/icmp6.sh
View file

@ -83,7 +83,72 @@ zero_id_cleanup()
pft_cleanup
}
atf_test_case "ttl_exceeded" "cleanup"
ttl_exceeded_head()
{
atf_set descr 'Test that we correctly translate TTL exceeded back'
atf_set require.user root
}
ttl_exceeded_body()
{
pft_init
epair_srv=$(vnet_mkepair)
epair_int=$(vnet_mkepair)
epair_cl=$(vnet_mkepair)
vnet_mkjail srv ${epair_srv}a
jexec srv ifconfig ${epair_srv}a inet6 2001:db8:1::1/64 no_dad up
jexec srv route add -6 default 2001:db8:1::2
vnet_mkjail int ${epair_srv}b ${epair_int}a
jexec int sysctl net.inet6.ip6.forwarding=1
jexec int ifconfig ${epair_srv}b inet6 2001:db8:1::2/64 no_dad up
jexec int ifconfig ${epair_int}a inet6 2001:db8:2::2/64 no_dad up
vnet_mkjail nat ${epair_int}b ${epair_cl}b
jexec nat ifconfig ${epair_int}b inet6 2001:db8:2::1 no_dad up
jexec nat ifconfig ${epair_cl}b inet6 2001:db8:3::2/64 no_dad up
jexec nat sysctl net.inet6.ip6.forwarding=1
jexec nat route add -6 default 2001:db8:2::2
vnet_mkjail cl ${epair_cl}a
jexec cl ifconfig ${epair_cl}a inet6 2001:db8:3::1/64 no_dad up
jexec cl route add -6 default 2001:db8:3::2
jexec nat pfctl -e
pft_set_rules nat \
"nat on ${epair_int}b from 2001:db8:3::/64 -> (${epair_int}b:0)" \
"pass"
# Sanity checks
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 2001:db8:3::2
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 2001:db8:2::1
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 2001:db8:2::2
atf_check -s exit:0 -o ignore \
jexec cl ping -c 1 2001:db8:1::1
echo "UDP"
atf_check -s exit:0 -e ignore -o match:".*2001:db8:2::2.*" \
jexec cl traceroute6 2001:db8:1::1
jexec nat pfctl -Fs
echo "ICMP"
atf_check -s exit:0 -e ignore -o match:".*2001:db8:2::2.*" \
jexec cl traceroute6 -I 2001:db8:1::1
}
ttl_exceeded_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "zero_id"
atf_add_test_case "ttl_exceeded"
}