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Fix handling scoped IPv6 addresses in IPSec code
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Authored by ae on Apr 16 2015, 5:44 PM.
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Details

Summary
  • in ipsec_encap() embed scope zone ids into link-local addresses in the new IPv6 header, this helps ip6_output() disambiguate the scope;
  • teach key_ismyaddr6() use in6_localip(). in6_localip() is less strict than key_sockaddrcmp(). It doesn't compare all fileds of struct sockaddr_in6, but it is faster and it should be safe, because all SA's data was checked for correctness. Also, since IPv6 link-local addresses in the V_in6_ifaddrhead are stored in kernel-internal form, embed scope zone id from SA into the address before calling in6_localip().
  • in ipsec_common_input() take scope zone id embedded in the address and use it to initialize sin6_scope_id, then use this sockaddr structure to lookup SA. We keep addresses in the SADB without embedded scope zone id.
Test Plan

I used these two configuration for tests:
Host1:

#!/sbin/setkey -f

flush;
spdflush;

# Host configuration:
#  ifconfig wlan0 inet 10.9.8.3/24 
#  ifconfig wlan0 inet 10.9.9.3/24 alias
#  ifconfig wlan0 inet 10.9.10.3/24 alias
#  ifconfig wlan0 inet 10.9.11.3/24 alias
#  ifconfig wlan0 inet 10.9.12.3/24 alias
#  ifconfig wlan0 inet 10.9.13.3/24 alias
#  ifconfig wlan0 inet 10.9.14.3/24 alias
#  ifconfig wlan0 inet6 fe80::3/64
#  ifconfig wlan0 inet6 fe80::1:3/64
#  ifconfig wlan0 inet6 fe80::11:3/64
#  ifconfig wlan0 inet6 fc00::3/64
#  ifconfig wlan0 inet6 fc00:10::3/64
#  ifconfig wlan0 inet6 fc00:11::3/64
#  ifconfig wlan0 inet6 fc00:12::3/64
#  ifconfig wlan0 inet6 fc00:13::3/64
#  ifconfig gif1 create inet 192.168.0.3/24 192.168.0.11 tunnel 10.9.9.3 10.9.9.11 up
#  ifconfig gif1 inet6 fc00:1::3/64
#  ifconfig gif1 inet6 fe80::1:3/64
#  ifconfig gif2 create inet 172.16.0.3/24 172.16.0.11
#  ifconfig gif2 inet6 tunnel fe80::1:3%wlan0 fe80::1:11%wlan0
#  ifconfig gif2 inet6 fc00:2::3/64
#  ifconfig gif3 create inet 192.168.1.3/24 192.168.1.11 tunnel 10.9.14.3 10.9.14.11 up
#  ifconfig gif3 inet6 fc00:14::3/64
#

spdadd -6 ::/0 ::/0 icmp6 135,0 -P out none;
spdadd -6 ::/0 ::/0 icmp6 136,0 -P out none;

# Test 1: IPv4 + transport mode
# 10.9.8.3 <- transport mode IPSec -> 10.9.8.11
#
# ping -c1 -S 10.9.8.3 10.9.8.11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d55: IP 10.9.8.3 > 10.9.8.11: ICMP echo request, id 62307, seq 0, length 64
# SPI 0x00003d55: IP 10.9.8.3 > 10.9.8.11: ICMP echo request, id 62307, seq 0, length 64
# SPI 0x00005fb5: IP 10.9.8.11 > 10.9.8.3: ICMP echo reply, id 62307, seq 0, length 64
#
# tcpdump -ni wlan0 esp
# IP 10.9.8.3 > 10.9.8.11: ESP(spi=0x00003d55,seq=0xd3), length 104
# IP 10.9.8.11 > 10.9.8.3: ESP(spi=0x00005fb5,seq=0x207), length 104

spdadd 10.9.8.3 10.9.8.11 any -P out ipsec esp/transport//default;
spdadd 10.9.8.11 10.9.8.3 any -P in ipsec esp/transport//default;
add 10.9.8.3 10.9.8.11 esp 15701 -m transport -E rijndael-cbc "1111111111111111" ;
add 10.9.8.11 10.9.8.3 esp 24501 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 2: IPv4 + gif + transport mode
# 192.168.0.3 <- transport mode IPSec -> 192.168.0.11
#
# ping -c1 -S 192.168.0.3 192.168.0.11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d56: IP 192.168.0.3 > 192.168.0.11: ICMP echo request, id 63331, seq 0, length 64
# SPI 0x00003d56: IP 192.168.0.3 > 192.168.0.11: ICMP echo request, id 63331, seq 0, length 64
# SPI 0x00005fb6: IP 192.168.0.11 > 192.168.0.3: ICMP echo reply, id 63331, seq 0, length 64
#
# tcpdump -ni wlan0
# IP 10.9.9.3 > 10.9.9.11: IP 192.168.0.3 > 192.168.0.11: ESP(spi=0x00003d56,seq=0x6), length 104 (ipip-proto-4)
# IP 10.9.9.11 > 10.9.9.3: IP 192.168.0.11 > 192.168.0.3: ESP(spi=0x00005fb6,seq=0x7), length 104 (ipip-proto-4)

spdadd 192.168.0.3 192.168.0.11 any -P out ipsec esp/transport//default;
spdadd 192.168.0.11 192.168.0.3 any -P in ipsec esp/transport//default;
add 192.168.0.3 192.168.0.11 esp 15702 -m transport -E rijndael-cbc "1111111111111111" ;
add 192.168.0.11 192.168.0.3 esp 24502 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 3: IPv6 + transport mode
# fc00::3 <- transport mode IPSec -> fc00::11
#
# ping6 -c1 fc00::11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d57: IP6 fc00::3 > fc00::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d57: IP6 fc00::3 > fc00::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fb7: IP6 fc00::11 > fc00::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0 esp
# IP6 fc00::3 > fc00::11: ESP(spi=0x00003d57,seq=0x1), length 56
# IP6 fc00::11 > fc00::3: ESP(spi=0x00005fb7,seq=0x2), length 56

spdadd -6 fc00::3 fc00::11 any -P out ipsec esp/transport//default;
spdadd -6 fc00::11 fc00::3 any -P in ipsec esp/transport//default;
add -6 fc00::3 fc00::11 esp 15703 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fc00::11 fc00::3 esp 24503 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 4: IPv6 LLA + transport mode
# fe80::3%wlan0 <- transport mode IPSec -> fe80::11%wlan0
#
# ping6 -c1 fe80::11%wlan0
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d58: IP6 fe80:5::3 > fe80:5::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d58: IP6 fe80:5::3 > fe80:5::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fb8: IP6 fe80:5::11 > fe80:5::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0 esp
# IP6 fe80::3 > fe80::11: ESP(spi=0x00003d58,seq=0x2), length 56
# IP6 fe80::11 > fe80::3: ESP(spi=0x00005fb8,seq=0x1b), length 56

spdadd -6 fe80::3%wlan0 fe80::11%wlan0 any -P out ipsec esp/transport//default;
spdadd -6 fe80::11%wlan0 fe80::3%wlan0 any -P in ipsec esp/transport//default;
add -6 fe80::3%wlan0 fe80::11%wlan0 esp 15704 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fe80::11%wlan0 fe80::3%wlan0 esp 24504 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 5: IPv6 LLA + gif + transport mode
# fe80::1:3%gif1 <- transport mode IPSec -> fe80::1:11%gif1
#
# ping6 -c1 fe80::1:11%gif1
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d59: IP6 fe80:7::1:3 > fe80:7::1:11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d59: IP6 fe80:7::1:3 > fe80:7::1:11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fb9: IP6 fe80:7::1:11 > fe80:7::1:3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0
# IP 10.9.9.3 > 10.9.9.11: IP6 fe80::1:3 > fe80::1:11: ESP(spi=0x00003d59,seq=0x3), length 56
# IP 10.9.9.11 > 10.9.9.3: IP6 fe80::1:11 > fe80::1:3: ESP(spi=0x00005fb9,seq=0x4), length 56

spdadd -6 fe80::1:3%gif1 fe80::1:11%gif1 any -P out ipsec esp/transport//default;
spdadd -6 fe80::1:11%gif1 fe80::1:3%gif1 any -P in ipsec esp/transport//default;
add -6 fe80::1:3%gif1 fe80::1:11%gif1 esp 15705 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fe80::1:11%gif1 fe80::1:3%gif1 esp 24505 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 6: IPv6 + gif + transport mode
# fc00:1::3 <- transport mode IPSec -> fc00:1::11
#
# ping6 -c1 fc00:1::11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d5a: IP6 fc00:1::3 > fc00:1::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d5a: IP6 fc00:1::3 > fc00:1::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fba: IP6 fc00:1::11 > fc00:1::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0
# IP 10.9.9.3 > 10.9.9.11: IP6 fc00:1::3 > fc00:1::11: ESP(spi=0x00003d5a,seq=0x1), length 56
# IP 10.9.9.11 > 10.9.9.3: IP6 fc00:1::11 > fc00:1::3: ESP(spi=0x00005fba,seq=0x2), length 56

spdadd -6 fc00:1::3 fc00:1::11 any -P out ipsec esp/transport//default;
spdadd -6 fc00:1::11 fc00:1::3 any -P in ipsec esp/transport//default;
add -6 fc00:1::3 fc00:1::11 esp 15706 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fc00:1::11 fc00:1::3 esp 24506 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 7: IPv4 tunnel mode 10.9.11.3 <-> 10.9.11.11
# 10.9.10.3 <- tunnel mode IPSec -> 10.9.10.11
# fc00:10::3 <-                  -> fc00:10::11
#
# ping -c1 -S 10.9.10.3 10.9.10.11
# ping6 -c1 fc00:10::11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d5b: IP 10.9.10.3 > 10.9.10.11: ICMP echo request, id 7780, seq 0, length 64
# SPI 0x00003d5b: IP 10.9.11.3 > 10.9.11.11: IP 10.9.10.3 > 10.9.10.11: ICMP echo request, id 7780, seq 0, length 64 (ipip-proto-4)
# SPI 0x00005fbb: IP 10.9.11.11 > 10.9.11.3: IP 10.9.10.11 > 10.9.10.3: ICMP echo reply, id 7780, seq 0, length 64 (ipip-proto-4)
# SPI 0x00003d5b: IP6 fc00:10::3 > fc00:10::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d5b: IP 10.9.11.3 > 10.9.11.11: IP6 fc00:10::3 > fc00:10::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fbb: IP 10.9.11.11 > 10.9.11.3: IP6 fc00:10::11 > fc00:10::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0 esp
# IP 10.9.11.3 > 10.9.11.11: ESP(spi=0x00003d5b,seq=0x1), length 120
# IP 10.9.11.11 > 10.9.11.3: ESP(spi=0x00005fbb,seq=0x3), length 120
# IP 10.9.11.3 > 10.9.11.11: ESP(spi=0x00003d5b,seq=0x2), length 88
# IP 10.9.11.11 > 10.9.11.3: ESP(spi=0x00005fbb,seq=0x4), length 88

spdadd 10.9.10.3 10.9.10.11 any -P out ipsec esp/tunnel/10.9.11.3-10.9.11.11/default;
spdadd 10.9.10.11 10.9.10.3 any -P in ipsec esp/tunnel/10.9.11.11-10.9.11.3/default;
spdadd -6 fc00:10::3 fc00:10::11 any -P out ipsec esp/tunnel/10.9.11.3-10.9.11.11/default;
spdadd -6 fc00:10::11 fc00:10::3 any -P in ipsec esp/tunnel/10.9.11.11-10.9.11.3/default;
add 10.9.11.3 10.9.11.11 esp 15707 -m tunnel -E rijndael-cbc "1111111111111111" ;
add 10.9.11.11 10.9.11.3 esp 24507 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 8: IPv6 tunnel mode fc00:11::3 <-> fc00:11::11
# 10.9.12.3 <- tunnel mode IPSec -> 10.9.12.11
# fc00:12::3 <-                  -> fc00:12::11
#
# ping -c1 -S 10.9.12.3 10.9.12.11
# ping6 -c1 fc00:12::11
# tcpdump -ni enc0
# Expected result:
# SPI 0x00003d5c: IP 10.9.12.3 > 10.9.12.11: ICMP echo request, id 8548, seq 0, length 64
# SPI 0x00003d5c: IP6 fc00:11::3 > fc00:11::11: IP 10.9.12.3 > 10.9.12.11: ICMP echo request, id 8548, seq 0, length 64
# SPI 0x00005fbc: IP6 fc00:11::11 > fc00:11::3: IP 10.9.12.11 > 10.9.12.3: ICMP echo reply, id 8548, seq 0, length 64
# SPI 0x00003d5c: IP6 fc00:12::3 > fc00:12::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d5c: IP6 fc00:11::3 > fc00:11::11: IP6 fc00:12::3 > fc00:12::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fbc: IP6 fc00:11::11 > fc00:11::3: IP6 fc00:12::11 > fc00:12::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0 esp
# IP6 fc00:11::3 > fc00:11::11: ESP(spi=0x00003d5c,seq=0x1), length 120
# IP6 fc00:11::11 > fc00:11::3: ESP(spi=0x00005fbc,seq=0x3), length 120
# IP6 fc00:11::3 > fc00:11::11: ESP(spi=0x00003d5c,seq=0x2), length 88
# IP6 fc00:11::11 > fc00:11::3: ESP(spi=0x00005fbc,seq=0x4), length 88

spdadd 10.9.12.3 10.9.12.11 any -P out ipsec esp/tunnel/fc00:11::3-fc00:11::11/default;
spdadd 10.9.12.11 10.9.12.3 any -P in ipsec esp/tunnel/fc00:11::11-fc00:11::3/default;
spdadd -6 fc00:12::3 fc00:12::11 any -P out ipsec esp/tunnel/fc00:11::3-fc00:11::11/default;
spdadd -6 fc00:12::11 fc00:12::3 any -P in ipsec esp/tunnel/fc00:11::11-fc00:11::3/default;
add -6 fc00:11::3 fc00:11::11 esp 15708 -m tunnel -E rijndael-cbc "1111111111111111" ;
add -6 fc00:11::11 fc00:11::3 esp 24508 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 9: IPv6 tunnel mode + LLA fe80::11:3 <-> fe80::11:11
# 10.9.13.3 <- tunnel mode IPSec -> 10.9.13.11
# fc00:13::3 <-                  -> fc00:13::11
#
# ping -c1 -S 10.9.13.3 10.9.13.11
# ping6 -c1 fc00:13::11
# tcpdump -ni enc0
# SPI 0x00003d5d: IP 10.9.13.3 > 10.9.13.11: ICMP echo request, id 12388, seq 0, length 64
# SPI 0x00003d5d: IP6 fe80:5::11:3 > fe80:5::11:11: IP 10.9.13.3 > 10.9.13.11: ICMP echo request, id 12388, seq 0, length 64
# SPI 0x00005fbd: IP6 fe80:5::11:11 > fe80:5::11:3: IP 10.9.13.11 > 10.9.13.3: ICMP echo reply, id 12388, seq 0, length 64
# SPI 0x00003d5d: IP6 fc00:13::3 > fc00:13::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d5d: IP6 fe80:5::11:3 > fe80:5::11:11: IP6 fc00:13::3 > fc00:13::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fbd: IP6 fe80:5::11:11 > fe80:5::11:3: IP6 fc00:13::11 > fc00:13::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0 esp
# IP6 fe80::11:3 > fe80::11:11: ESP(spi=0x00003d5d,seq=0x1), length 120
# IP6 fe80::11:11 > fe80::11:3: ESP(spi=0x00005fbd,seq=0x3), length 120
# IP6 fe80::11:3 > fe80::11:11: ESP(spi=0x00003d5d,seq=0x2), length 88
# IP6 fe80::11:11 > fe80::11:3: ESP(spi=0x00005fbd,seq=0x4), length 88

spdadd 10.9.13.3 10.9.13.11 any -P out ipsec esp/tunnel/fe80::11:3%wlan0-fe80::11:11%wlan0/default;
spdadd 10.9.13.11 10.9.13.3 any -P in ipsec esp/tunnel/fe80::11:11%wlan0-fe80::11:3%wlan0/default;
spdadd -6 fc00:13::3 fc00:13::11 any -P out ipsec esp/tunnel/fe80::11:3%wlan0-fe80::11:11%wlan0/default;
spdadd -6 fc00:13::11 fc00:13::3 any -P in ipsec esp/tunnel/fe80::11:11%wlan0-fe80::11:3%wlan0/default;
add -6 fe80::11:3%wlan0 fe80::11:11%wlan0 esp 15709 -m tunnel -E rijndael-cbc "1111111111111111" ;
add -6 fe80::11:11%wlan0 fe80::11:3%wlan0 esp 24509 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 10: IPv4 tunnel mode + gif 10.9.14.3 <-> 10.9.14.11
# 10.9.14.3 <- tunnel mode IPSec -> 10.9.14.11 
# 192.168.1.3 <-                 -> 192.168.1.11
# fc00:14::3 <-                  -> fc00:14::11
#
# ping -c1 -S 10.9.14.3 10.9.14.11
# ping -c1 -S 192.168.1.3 192.168.1.11
# ping6 -c1 fc00:14::11
# tcpdump -ni enc0
# SPI 0x00003d5e: IP 10.9.14.3 > 10.9.14.11: ICMP echo request, id 13668, seq 0, length 64
# SPI 0x00003d5e: IP 10.9.14.3 > 10.9.14.11: IP 10.9.14.3 > 10.9.14.11: ICMP echo request, id 13668, seq 0, length 64 (ipip-proto-4)
# SPI 0x00005fbe: IP 10.9.14.11 > 10.9.14.3: IP 10.9.14.11 > 10.9.14.3: ICMP echo reply, id 13668, seq 0, length 64 (ipip-proto-4)
# SPI 0x00003d5e: IP 192.168.1.3 > 192.168.1.11: ICMP echo request, id 14692, seq 0, length 64
# SPI 0x00003d5e: IP 10.9.14.3 > 10.9.14.11: IP 192.168.1.3 > 192.168.1.11: ICMP echo request, id 14692, seq 0, length 64 (ipip-proto-4)
# SPI 0x00005fbe: IP 10.9.14.11 > 10.9.14.3: IP 192.168.1.11 > 192.168.1.3: ICMP echo reply, id 14692, seq 0, length 64 (ipip-proto-4)
# SPI 0x00003d5e: IP6 fc00:14::3 > fc00:14::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00003d5e: IP 10.9.14.3 > 10.9.14.11: IP6 fc00:14::3 > fc00:14::11: ICMP6, echo request, seq 0, length 16
# SPI 0x00005fbe: IP 10.9.14.11 > 10.9.14.3: IP6 fc00:14::11 > fc00:14::3: ICMP6, echo reply, seq 0, length 16
#
# tcpdump -ni wlan0
# IP 10.9.14.3 > 10.9.14.11: ESP(spi=0x00003d5e,seq=0x1), length 120
# IP 10.9.14.11 > 10.9.14.3: ESP(spi=0x00005fbe,seq=0x4), length 120
# IP 10.9.14.3 > 10.9.14.11: ESP(spi=0x00003d5e,seq=0x2), length 120
# IP 10.9.14.11 > 10.9.14.3: ESP(spi=0x00005fbe,seq=0x5), length 120
# IP 10.9.14.3 > 10.9.14.11: ESP(spi=0x00003d5e,seq=0x3), length 88
# IP 10.9.14.11 > 10.9.14.3: ESP(spi=0x00005fbe,seq=0x6), length 88

spdadd 10.9.14.3 10.9.14.11 any -P out ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd 10.9.14.11 10.9.14.3 any -P in ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
spdadd 192.168.1.3 192.168.1.11 any -P out ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd 192.168.1.11 192.168.1.3 any -P in ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
spdadd -6 fc00:14::3 fc00:14::11 any -P out ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd -6 fc00:14::11 fc00:14::3 any -P in ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
add 10.9.14.3 10.9.14.11 esp 15710 -m tunnel -E rijndael-cbc "1111111111111111" ;
add 10.9.14.11 10.9.14.3 esp 24510 -m tunnel -E rijndael-cbc "1111111111111111" ;

Host2:

#!/sbin/setkey -f

flush;
spdflush;

# Host configuration:
#  ifconfig em0 inet 10.9.8.11/24 
#  ifconfig em0 inet 10.9.9.11 alias
#  ifconfig em0 inet 10.9.10.11 alias
#  ifconfig em0 inet 10.9.11.11 alias
#  ifconfig em0 inet 10.9.12.11 alias
#  ifconfig em0 inet 10.9.13.11 alias
#  ifconfig em0 inet 10.9.14.11 alias
#  ifconfig em0 inet6 fe80::11/64
#  ifconfig em0 inet6 fe80::1:11/64
#  ifconfig em0 inet6 fe80::11:11/64
#  ifconfig em0 inet6 fc00::11/64
#  ifconfig em0 inet6 fc00:10::11/64
#  ifconfig em0 inet6 fc00:11::11/64
#  ifconfig em0 inet6 fc00:12::11/64
#  ifconfig em0 inet6 fc00:13::11/64
#  ifconfig gif1 create inet 192.168.0.11/24 192.168.0.3 tunnel 10.9.9.11 10.9.9.3 up
#  ifconfig gif1 inet6 fc00:1::11/64
#  ifconfig gif1 inet6 fe80::1:11/64
#  ifconfig gif2 create inet 172.16.0.11/24 172.16.0.3
#  ifconfig gif2 inet6 tunnel fe80::1:11%em0 fe80::1:3%em0
#  ifconfig gif2 inet6 fc00:2::11/64
#  ifconfig gif3 create inet 192.168.1.11/24 192.168.1.3 tunnel 10.9.14.11 10.9.14.3 up
#  ifconfig gif3 inet6 fc00:14::11/64
#

spdadd -6 ::/0 ::/0 icmp6 135,0 -P out none;
spdadd -6 ::/0 ::/0 icmp6 136,0 -P out none;

# Test 1: IPv4 + transport mode
# 10.9.8.3 <- transport mode IPSec -> 10.9.8.11

spdadd 10.9.8.3 10.9.8.11 any -P in ipsec esp/transport//default;
spdadd 10.9.8.11 10.9.8.3 any -P out ipsec esp/transport//default;
add 10.9.8.3 10.9.8.11 esp 15701 -m transport -E rijndael-cbc "1111111111111111" ;
add 10.9.8.11 10.9.8.3 esp 24501 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 2: IPv4 + gif + transport mode
# 192.168.0.3 <- transport mode IPSec -> 192.168.0.11

spdadd 192.168.0.3 192.168.0.11 any -P in ipsec esp/transport//default;
spdadd 192.168.0.11 192.168.0.3 any -P out ipsec esp/transport//default;
add 192.168.0.3 192.168.0.11 esp 15702 -m transport -E rijndael-cbc "1111111111111111" ;
add 192.168.0.11 192.168.0.3 esp 24502 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 3: IPv6 + transport mode
# fc00::3 <- transport mode IPSec -> fc00::11

spdadd -6 fc00::3 fc00::11 any -P in ipsec esp/transport//default;
spdadd -6 fc00::11 fc00::3 any -P out ipsec esp/transport//default;
add -6 fc00::3 fc00::11 esp 15703 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fc00::11 fc00::3 esp 24503 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 4: IPv6 LLA + transport mode
# fe80::3%em0 <- transport mode IPSec -> fe80::11%em0

spdadd -6 fe80::3%em0 fe80::11%em0 any -P in ipsec esp/transport//default;
spdadd -6 fe80::11%em0 fe80::3%em0 any -P out ipsec esp/transport//default;
add -6 fe80::3%em0 fe80::11%em0 esp 15704 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fe80::11%em0 fe80::3%em0 esp 24504 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 5: IPv6 LLA + gif + transport mode
# fe80::1:3%gif1 <- transport mode IPSec -> fe80::1:11%gif1

spdadd -6 fe80::1:3%gif1 fe80::1:11%gif1 any -P in ipsec esp/transport//default;
spdadd -6 fe80::1:11%gif1 fe80::1:3%gif1 any -P out ipsec esp/transport//default;
add -6 fe80::1:3%gif1 fe80::1:11%gif1 esp 15705 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fe80::1:11%gif1 fe80::1:3%gif1 esp 24505 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 6: IPv6 + gif + transport mode
# fc00:1::3 <- transport mode IPSec -> fc00:1::11

spdadd -6 fc00:1::3 fc00:1::11 any -P in ipsec esp/transport//default;
spdadd -6 fc00:1::11 fc00:1::3 any -P out ipsec esp/transport//default;
add -6 fc00:1::3 fc00:1::11 esp 15706 -m transport -E rijndael-cbc "1111111111111111" ;
add -6 fc00:1::11 fc00:1::3 esp 24506 -m transport -E rijndael-cbc "1111111111111111" ;

# Test 7: IPv4 tunnel mode 10.9.11.3 <-> 10.9.11.11
# 10.9.10.3 <- tunnel mode IPSec -> 10.9.10.11
# fc00:10::3 <-                  -> fc00:10::11

spdadd 10.9.10.3 10.9.10.11 any -P in ipsec esp/tunnel/10.9.11.3-10.9.11.11/default;
spdadd 10.9.10.11 10.9.10.3 any -P out ipsec esp/tunnel/10.9.11.11-10.9.11.3/default;
spdadd -6 fc00:10::3 fc00:10::11 any -P in ipsec esp/tunnel/10.9.11.3-10.9.11.11/default;
spdadd -6 fc00:10::11 fc00:10::3 any -P out ipsec esp/tunnel/10.9.11.11-10.9.11.3/default;
add 10.9.11.3 10.9.11.11 esp 15707 -m tunnel -E rijndael-cbc "1111111111111111" ;
add 10.9.11.11 10.9.11.3 esp 24507 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 8: IPv6 tunnel mode fc00:11::3 <-> fc00:11::11
# 10.9.12.3 <- tunnel mode IPSec -> 10.9.12.11
# fc00:12::3 <-                  -> fc00:12::11

spdadd 10.9.12.3 10.9.12.11 any -P in ipsec esp/tunnel/fc00:11::3-fc00:11::11/default;
spdadd 10.9.12.11 10.9.12.3 any -P out ipsec esp/tunnel/fc00:11::11-fc00:11::3/default;
spdadd -6 fc00:12::3 fc00:12::11 any -P in ipsec esp/tunnel/fc00:11::3-fc00:11::11/default;
spdadd -6 fc00:12::11 fc00:12::3 any -P out ipsec esp/tunnel/fc00:11::11-fc00:11::3/default;
add -6 fc00:11::3 fc00:11::11 esp 15708 -m tunnel -E rijndael-cbc "1111111111111111" ;
add -6 fc00:11::11 fc00:11::3 esp 24508 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 9: IPv6 tunnel mode + LLA fe80::11:3 <-> fe80::11:11
# 10.9.13.3 <- tunnel mode IPSec -> 10.9.13.11
# fc00:13::3 <-                  -> fc00:13::11

spdadd 10.9.13.3 10.9.13.11 any -P in ipsec esp/tunnel/fe80::11:3%em0-fe80::11:11%em0/default;
spdadd 10.9.13.11 10.9.13.3 any -P out ipsec esp/tunnel/fe80::11:11%em0-fe80::11:3%em0/default;
spdadd -6 fc00:13::3 fc00:13::11 any -P in ipsec esp/tunnel/fe80::11:3%em0-fe80::11:11%em0/default;
spdadd -6 fc00:13::11 fc00:13::3 any -P out ipsec esp/tunnel/fe80::11:11%em0-fe80::11:3%em0/default;
add -6 fe80::11:3%em0 fe80::11:11%em0 esp 15709 -m tunnel -E rijndael-cbc "1111111111111111" ;
add -6 fe80::11:11%em0 fe80::11:3%em0 esp 24509 -m tunnel -E rijndael-cbc "1111111111111111" ;

# Test 10: IPv4 tunnel mode + gif 10.9.14.3 <-> 10.9.14.11
# 10.9.14.3 <- tunnel mode IPSec -> 10.9.14.11 
# 192.168.1.3 <-                 -> 192.168.1.11
# fc00:14::3 <-                  -> fc00:14::11

spdadd 10.9.14.3 10.9.14.11 any -P in ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd 10.9.14.11 10.9.14.3 any -P out ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
spdadd 192.168.1.3 192.168.1.11 any -P in ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd 192.168.1.11 192.168.1.3 any -P out ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
spdadd -6 fc00:14::3 fc00:14::11 any -P in ipsec esp/tunnel/10.9.14.3-10.9.14.11/default;
spdadd -6 fc00:14::11 fc00:14::3 any -P out ipsec esp/tunnel/10.9.14.11-10.9.14.3/default;
add 10.9.14.3 10.9.14.11 esp 15710 -m tunnel -E rijndael-cbc "1111111111111111" ;
add 10.9.14.11 10.9.14.3 esp 24510 -m tunnel -E rijndael-cbc "1111111111111111" ;

Diff Detail

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rS FreeBSD src repository - subversion
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Event Timeline

ae retitled this revision from to Fix handling scoped IPv6 addresses in IPSec code.
ae updated this object.
ae edited the test plan for this revision. (Show Details)
ae added a reviewer: network.
ae edited the test plan for this revision. (Show Details)

All my tests successfully passed with patches from D2303,D2304,D2306.

gnn added a reviewer: gnn.
This revision is now accepted and ready to land.Apr 18 2015, 4:20 PM
ae updated this revision to Diff 4898.

Closed by commit rS281693 (authored by @ae).