AT_BANNER([OVN components])

AT_SETUP([ovn -- lexer])
dnl For lines without =>, input and expected output are identical.
dnl For lines with =>, input precedes => and expected output follows =>.
AT_DATA([test-cases.txt], [dnl
foo bar baz quuxquuxquux _abcd_ a.b.c.d a123_.456
"abc\u0020def" => "abc def"
" => error("Input ends inside quoted string.")dnl "

a/*b*/c => a c
a//b c => a
a/**/b => a b
a/*/b => a error("`/*' without matching `*/'.")
a/*/**/b => a b
a/b => a error("`/' is only valid as part of `//' or `/*'.") b

0 1 12345 18446744073709551615
18446744073709551616 => error("Decimal constants must be less than 2**64.")
9999999999999999999999 => error("Decimal constants must be less than 2**64.")
01 => error("Decimal constants must not have leading zeros.")

0/0
0/1
1/0 => error("Value contains unmasked 1-bits.")
1/1
128/384
1/3
1/ => error("Integer constant expected.")

1/0x123 => error("Value and mask have incompatible formats.")

0x1234
0x01234 => 0x1234
0x0 => 0
0x000 => 0
0xfedcba9876543210
0XFEDCBA9876543210 => 0xfedcba9876543210
0xfedcba9876543210fedcba9876543210
0x0000fedcba9876543210fedcba9876543210 => 0xfedcba9876543210fedcba9876543210
0x => error("Hex digits expected following 0x.")
0X => error("Hex digits expected following 0X.")
0x0/0x0 => 0/0
0x0/0x1 => 0/0x1
0x1/0x0 => error("Value contains unmasked 1-bits.")
0xffff/0x1ffff
0x. => error("Invalid syntax in hexadecimal constant.")

192.168.128.1 1.2.3.4 255.255.255.255 0.0.0.0
256.1.2.3 => error("Invalid numeric constant.")
192.168.0.0/16
192.168.0.0/255.255.0.0 => 192.168.0.0/16
192.168.0.0/255.255.255.0 => 192.168.0.0/24
192.168.0.0/255.255.0.255
192.168.0.0/255.0.0.0 => error("Value contains unmasked 1-bits.")
192.168.0.0/32
192.168.0.0/255.255.255.255 => 192.168.0.0/32

::
::1
ff00::1234 => ff00::1234
2001:db8:85a3::8a2e:370:7334
2001:db8:85a3:0:0:8a2e:370:7334 => 2001:db8:85a3::8a2e:370:7334
2001:0db8:85a3:0000:0000:8a2e:0370:7334 => 2001:db8:85a3::8a2e:370:7334
::ffff:192.0.2.128
::ffff:c000:0280 => ::ffff:192.0.2.128
::1/::1
::1/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff => ::1/128
::1/128
ff00::/8
ff00::/ff00:: => ff00::/8

01:23:45:67:ab:cd
01:23:45:67:AB:CD => 01:23:45:67:ab:cd
fe:dc:ba:98:76:54
FE:DC:ba:98:76:54 => fe:dc:ba:98:76:54
01:00:00:00:00:00/01:00:00:00:00:00
ff:ff:ff:ff:ff:ff/ff:ff:ff:ff:ff:ff
fe:ff:ff:ff:ff:ff/ff:ff:ff:ff:ff:ff
ff:ff:ff:ff:ff:ff/fe:ff:ff:ff:ff:ff => error("Value contains unmasked 1-bits.")
fe:x => error("Invalid numeric constant.")
00:01:02:03:04:x => error("Invalid numeric constant.")

# Test that operators are tokenized as expected, even without white space.
(){}[[]]==!=<<=>>=!&&||..,;=<->-- => ( ) { } [[ ]] == != < <= > >= ! && || .. , ; = <-> --
& => error("`&' is only valid as part of `&&'.")
| => error("`|' is only valid as part of `||'.")
- => error("`-' is only valid as part of `--'.")

^ => error("Invalid character `^' in input.")
])
AT_CAPTURE_FILE([input.txt])
sed 's/ =>.*//' test-cases.txt > input.txt
sed 's/.* => //' test-cases.txt > expout
AT_CHECK([ovstest test-ovn lex < input.txt], [0], [expout])
AT_CLEANUP

AT_SETUP([ovn -- expression parser])
dnl For lines without =>, input and expected output are identical.
dnl For lines with =>, input precedes => and expected output follows =>.
AT_DATA([test-cases.txt], [[
eth.type == 0x800
eth.type==0x800 => eth.type == 0x800
eth.type[0..15] == 0x800 => eth.type == 0x800

vlan.present
vlan.present == 1 => vlan.present
!(vlan.present == 0) => vlan.present
!(vlan.present != 1) => vlan.present
!vlan.present
vlan.present == 0 => !vlan.present
vlan.present != 1 => !vlan.present
!(vlan.present == 1) => !vlan.present
!(vlan.present != 0) => !vlan.present

eth.dst[0]
eth.dst[0] == 1 => eth.dst[0]
eth.dst[0] != 0 => eth.dst[0]
!(eth.dst[0] == 0) => eth.dst[0]
!(eth.dst[0] != 1) => eth.dst[0]

!eth.dst[0]
eth.dst[0] == 0 => !eth.dst[0]
eth.dst[0] != 1 => !eth.dst[0]
!(eth.dst[0] == 1) => !eth.dst[0]
!(eth.dst[0] != 0) => !eth.dst[0]

vlan.tci[12..15] == 0x3
vlan.tci == 0x3000/0xf000 => vlan.tci[12..15] == 0x3
vlan.tci[12..15] != 0x3
vlan.tci != 0x3000/0xf000 => vlan.tci[12..15] != 0x3

!vlan.pcp => vlan.pcp == 0
!(vlan.pcp) => vlan.pcp == 0
vlan.pcp == 0x4
vlan.pcp != 0x4
vlan.pcp > 0x4
vlan.pcp >= 0x4
vlan.pcp < 0x4
vlan.pcp <= 0x4
!(vlan.pcp != 0x4) => vlan.pcp == 0x4
!(vlan.pcp == 0x4) => vlan.pcp != 0x4
!(vlan.pcp <= 0x4) => vlan.pcp > 0x4
!(vlan.pcp < 0x4) => vlan.pcp >= 0x4
!(vlan.pcp >= 0x4) => vlan.pcp < 0x4
!(vlan.pcp > 0x4) => vlan.pcp <= 0x4
0x4 == vlan.pcp => vlan.pcp == 0x4
0x4 != vlan.pcp => vlan.pcp != 0x4
0x4 < vlan.pcp => vlan.pcp > 0x4
0x4 <= vlan.pcp => vlan.pcp >= 0x4
0x4 > vlan.pcp => vlan.pcp < 0x4
0x4 >= vlan.pcp => vlan.pcp <= 0x4
!(0x4 != vlan.pcp) => vlan.pcp == 0x4
!(0x4 == vlan.pcp) => vlan.pcp != 0x4
!(0x4 >= vlan.pcp) => vlan.pcp > 0x4
!(0x4 > vlan.pcp) => vlan.pcp >= 0x4
!(0x4 <= vlan.pcp) => vlan.pcp < 0x4
!(0x4 < vlan.pcp) => vlan.pcp <= 0x4

1 < vlan.pcp < 4 => vlan.pcp > 0x1 && vlan.pcp < 0x4
1 <= vlan.pcp <= 4 => vlan.pcp >= 0x1 && vlan.pcp <= 0x4
1 < vlan.pcp <= 4 => vlan.pcp > 0x1 && vlan.pcp <= 0x4
1 <= vlan.pcp < 4 => vlan.pcp >= 0x1 && vlan.pcp < 0x4
1 <= vlan.pcp <= 4 => vlan.pcp >= 0x1 && vlan.pcp <= 0x4
4 > vlan.pcp > 1 => vlan.pcp < 0x4 && vlan.pcp > 0x1
4 >= vlan.pcp > 1 => vlan.pcp <= 0x4 && vlan.pcp > 0x1
4 > vlan.pcp >= 1 => vlan.pcp < 0x4 && vlan.pcp >= 0x1
4 >= vlan.pcp >= 1 => vlan.pcp <= 0x4 && vlan.pcp >= 0x1
!(1 < vlan.pcp < 4) => vlan.pcp <= 0x1 || vlan.pcp >= 0x4
!(1 <= vlan.pcp <= 4) => vlan.pcp < 0x1 || vlan.pcp > 0x4
!(1 < vlan.pcp <= 4) => vlan.pcp <= 0x1 || vlan.pcp > 0x4
!(1 <= vlan.pcp < 4) => vlan.pcp < 0x1 || vlan.pcp >= 0x4
!(1 <= vlan.pcp <= 4) => vlan.pcp < 0x1 || vlan.pcp > 0x4
!(4 > vlan.pcp > 1) => vlan.pcp >= 0x4 || vlan.pcp <= 0x1
!(4 >= vlan.pcp > 1) => vlan.pcp > 0x4 || vlan.pcp <= 0x1
!(4 > vlan.pcp >= 1) => vlan.pcp >= 0x4 || vlan.pcp < 0x1
!(4 >= vlan.pcp >= 1) => vlan.pcp > 0x4 || vlan.pcp < 0x1

vlan.pcp == {1, 2, 3, 4} => vlan.pcp == 0x1 || vlan.pcp == 0x2 || vlan.pcp == 0x3 || vlan.pcp == 0x4
vlan.pcp == 1 || ((vlan.pcp == 2 || vlan.pcp == 3) || vlan.pcp == 4) => vlan.pcp == 0x1 || vlan.pcp == 0x2 || vlan.pcp == 0x3 || vlan.pcp == 0x4

vlan.pcp != {1, 2, 3, 4} => vlan.pcp != 0x1 && vlan.pcp != 0x2 && vlan.pcp != 0x3 && vlan.pcp != 0x4
vlan.pcp == 1 && ((vlan.pcp == 2 && vlan.pcp == 3) && vlan.pcp == 4) => vlan.pcp == 0x1 && vlan.pcp == 0x2 && vlan.pcp == 0x3 && vlan.pcp == 0x4

vlan.pcp == 1 && !((vlan.pcp == 2 && vlan.pcp == 3) && vlan.pcp == 4) => vlan.pcp == 0x1 && (vlan.pcp != 0x2 || vlan.pcp != 0x3 || vlan.pcp != 0x4)
vlan.pcp == 1 && (!(vlan.pcp == 2 && vlan.pcp == 3) && vlan.pcp == 4) => vlan.pcp == 0x1 && (vlan.pcp != 0x2 || vlan.pcp != 0x3) && vlan.pcp == 0x4
vlan.pcp == 1 && !(!(vlan.pcp == 2 && vlan.pcp == 3) && vlan.pcp == 4) => vlan.pcp == 0x1 && ((vlan.pcp == 0x2 && vlan.pcp == 0x3) || vlan.pcp != 0x4)

ip4.src == {10.0.0.0/8, 192.168.0.0/16, 172.16.20.0/24, 8.8.8.8} => ip4.src[24..31] == 0xa || ip4.src[16..31] == 0xc0a8 || ip4.src[8..31] == 0xac1014 || ip4.src == 0x8080808
ip6.src == ::1 => ip6.src == 0x1

ip4.src == 1.2.3.4 => ip4.src == 0x1020304
ip4.src == ::1.2.3.4/::ffff:ffff => ip4.src == 0x1020304
ip6.src == ::1 => ip6.src == 0x1

1
0
!1 => 0
!0 => 1

inport == "eth0"
!(inport != "eth0") => inport == "eth0"

ip4.src == "eth0" => Integer field ip4.src is not compatible with string constant.
inport == 1 => String field inport is not compatible with integer constant.

ip4.src > {1, 2, 3} => Only == and != operators may be used with value sets.
eth.type > 0x800 => Only == and != operators may be used with nominal field eth.type.
vlan.present > 0 => Only == and != operators may be used with Boolean field vlan.present.

inport != "eth0" => Nominal field inport may only be tested for equality (taking enclosing `!' operators into account).
!(inport == "eth0") => Nominal field inport may only be tested for equality (taking enclosing `!' operators into account).
eth.type != 0x800 => Nominal field eth.type may only be tested for equality (taking enclosing `!' operators into account).
!(eth.type == 0x800) => Nominal field eth.type may only be tested for equality (taking enclosing `!' operators into account).

123 == 123 => Syntax error at `123' expecting field name.

123 == xyzzy => Syntax error at `xyzzy' expecting field name.
xyzzy == 1 => Syntax error at `xyzzy' expecting field name.

inport[1] == 1 => Cannot select subfield of string field inport.

eth.type[] == 1 => Syntax error at `@:>@' expecting small integer.
eth.type[::1] == 1 => Syntax error at `::1' expecting small integer.
eth.type[18446744073709551615] == 1 => Syntax error at `18446744073709551615' expecting small integer.

eth.type[5!] => Syntax error at `!' expecting `@:>@'.

eth.type[5..1] => Invalid bit range 5 to 1.

eth.type[12..16] => Cannot select bits 12 to 16 of 16-bit field eth.type.

eth.type[10] == 1 => Cannot select subfield of nominal field eth.type.

eth.type => Explicit `!= 0' is required for inequality test of multibit field against 0.

!(!(vlan.pcp)) => Explicit `!= 0' is required for inequality test of multibit field against 0.

123 => Syntax error at end of input expecting relational operator.

123 x => Syntax error at `x' expecting relational operator.

{1, "eth0"} => Syntax error at `"eth0"' expecting integer.

eth.type == xyzzy => Syntax error at `xyzzy' expecting constant.

(1 x) => Syntax error at `x' expecting `)'.

!0x800 != eth.type => Missing parentheses around operand of !.

eth.type == 0x800 || eth.type == 0x86dd && ip.proto == 17 => && and || must be parenthesized when used together.

eth.dst == {} => Syntax error at `}' expecting constant.

eth.src > 00:00:00:00:11:11/00:00:00:00:ff:ff => Only == and != operators may be used with masked constants.  Consider using subfields instead (e.g. eth.src[0..15] > 0x1111 in place of eth.src > 00:00:00:00:11:11/00:00:00:00:ff:ff).

ip4.src == ::1 => 128-bit constant is not compatible with 32-bit field ip4.src.

1 == eth.type == 2 => Range expressions must have the form `x < field < y' or `x > field > y', with each `<' optionally replaced by `<=' or `>' by `>=').

eth.dst[40] x => Extra tokens at end of input.
]])
sed 's/ =>.*//' test-cases.txt > input.txt
sed 's/.* => //' test-cases.txt > expout
AT_CHECK([ovstest test-ovn parse-expr < input.txt], [0], [expout])
AT_CLEANUP

AT_SETUP([ovn -- expression annotation])
dnl Input precedes =>, expected output follows =>.
AT_DATA([test-cases.txt], [[
ip4.src == 1.2.3.4 => ip4.src == 0x1020304 && eth.type == 0x800
ip4.src != 1.2.3.4 => ip4.src != 0x1020304 && eth.type == 0x800
ip.proto == 123 => ip.proto == 0x7b && (eth.type == 0x800 || eth.type == 0x86dd)
ip.proto == {123, 234} => (ip.proto == 0x7b && (eth.type == 0x800 || eth.type == 0x86dd)) || (ip.proto == 0xea && (eth.type == 0x800 || eth.type == 0x86dd))
ip4.src == 1.2.3.4 && ip4.dst == 5.6.7.8 => ip4.src == 0x1020304 && eth.type == 0x800 && ip4.dst == 0x5060708 && eth.type == 0x800

ip => eth.type == 0x800 || eth.type == 0x86dd
ip == 1 => eth.type == 0x800 || eth.type == 0x86dd
ip[0] == 1 => eth.type == 0x800 || eth.type == 0x86dd
ip > 0 => Only == and != operators may be used with nominal field ip.
!ip => Nominal predicate ip may only be tested positively, e.g. `ip' or `ip == 1' but not `!ip' or `ip == 0'.
ip == 0 => Nominal predicate ip may only be tested positively, e.g. `ip' or `ip == 1' but not `!ip' or `ip == 0'.

vlan.present => vlan.tci[12]
!vlan.present => !vlan.tci[12]

!vlan.pcp => vlan.tci[13..15] == 0 && vlan.tci[12]
vlan.pcp == 1 && vlan.vid == 2 => vlan.tci[13..15] == 0x1 && vlan.tci[12] && vlan.tci[0..11] == 0x2 && vlan.tci[12]
!reg0 && !reg1 && !reg2 && !reg3 => xreg0[32..63] == 0 && xreg0[0..31] == 0 && xreg1[32..63] == 0 && xreg1[0..31] == 0

ip.first_frag => ip.frag[0] && (eth.type == 0x800 || eth.type == 0x86dd) && (!ip.frag[1] || (eth.type != 0x800 && eth.type != 0x86dd))
!ip.first_frag => !ip.frag[0] || (eth.type != 0x800 && eth.type != 0x86dd) || (ip.frag[1] && (eth.type == 0x800 || eth.type == 0x86dd))
ip.later_frag => ip.frag[1] && (eth.type == 0x800 || eth.type == 0x86dd)

bad_prereq != 0 => Error parsing expression `xyzzy' encountered as prerequisite or predicate of initial expression: Syntax error at `xyzzy' expecting field name.
self_recurse != 0 => Error parsing expression `self_recurse != 0' encountered as prerequisite or predicate of initial expression: Recursive expansion of symbol `self_recurse'.
mutual_recurse_1 != 0 => Error parsing expression `mutual_recurse_2 != 0' encountered as prerequisite or predicate of initial expression: Error parsing expression `mutual_recurse_1 != 0' encountered as prerequisite or predicate of initial expression: Recursive expansion of symbol `mutual_recurse_1'.
mutual_recurse_2 != 0 => Error parsing expression `mutual_recurse_1 != 0' encountered as prerequisite or predicate of initial expression: Error parsing expression `mutual_recurse_2 != 0' encountered as prerequisite or predicate of initial expression: Recursive expansion of symbol `mutual_recurse_2'.
]])
sed 's/ =>.*//' test-cases.txt > input.txt
sed 's/.* => //' test-cases.txt > expout
AT_CHECK([ovstest test-ovn annotate-expr < input.txt], [0], [expout])
AT_CLEANUP

AT_SETUP([ovn -- 1-term expression conversion])
AT_CHECK([ovstest test-ovn exhaustive --operation=convert 1], [0],
  [Tested converting all 1-terminal expressions with 2 numeric vars (each 3 bits) in terms of operators == != < <= > >= and 2 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 2-term expression conversion])
AT_CHECK([ovstest test-ovn exhaustive --operation=convert 2], [0],
  [Tested converting 570 expressions of 2 terminals with 2 numeric vars (each 3 bits) in terms of operators == != < <= > >= and 2 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 3-term expression conversion])
AT_CHECK([ovstest test-ovn exhaustive --operation=convert --bits=2 3], [0],
  [Tested converting 62418 expressions of 3 terminals with 2 numeric vars (each 2 bits) in terms of operators == != < <= > >= and 2 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 3-term numeric expression simplification])
AT_CHECK([ovstest test-ovn exhaustive --operation=simplify --nvars=2 --svars=0 3], [0],
  [Tested simplifying 477138 expressions of 3 terminals with 2 numeric vars (each 3 bits) in terms of operators == != < <= > >=.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term string expression simplification])
AT_CHECK([ovstest test-ovn exhaustive --operation=simplify --nvars=0 --svars=4 4], [0],
  [Tested simplifying 21978 expressions of 4 terminals with 4 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 3-term mixed expression simplification])
AT_CHECK([ovstest test-ovn exhaustive --operation=simplify --nvars=1 --svars=1 3], [0],
  [Tested simplifying 124410 expressions of 3 terminals with 1 numeric vars (each 3 bits) in terms of operators == != < <= > >= and 1 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term numeric expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=3 --svars=0 --bits=1 4], [0],
  [Tested normalizing 1207162 expressions of 4 terminals with 3 numeric vars (each 1 bits) in terms of operators == != < <= > >=.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term string expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=0 --svars=3 --bits=1 4], [0],
  [Tested normalizing 11242 expressions of 4 terminals with 3 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term mixed expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=1 --bits=1 --svars=2 4], [0],
  [Tested normalizing 128282 expressions of 4 terminals with 1 numeric vars (each 1 bits) in terms of operators == != < <= > >= and 2 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 5-term numeric expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=3 --svars=0 --bits=1 --relops='==' 5], [0],
  [Tested normalizing 368550 expressions of 5 terminals with 3 numeric vars (each 1 bits) in terms of operators ==.
])
AT_CLEANUP

AT_SETUP([ovn -- 5-term string expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=0 --svars=3 --bits=1 --relops='==' 5], [0],
  [Tested normalizing 368550 expressions of 5 terminals with 3 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 5-term mixed expression normalization])
AT_CHECK([ovstest test-ovn exhaustive --operation=normalize --nvars=1 --svars=1 --bits=1 --relops='==' 5], [0],
  [Tested normalizing 116550 expressions of 5 terminals with 1 numeric vars (each 1 bits) in terms of operators == and 1 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term numeric expressions to flows])
AT_CHECK([ovstest test-ovn exhaustive --operation=flow --nvars=2 --svars=0 --bits=2 --relops='==' 4], [0],
  [Tested converting to flows 128282 expressions of 4 terminals with 2 numeric vars (each 2 bits) in terms of operators ==.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term string expressions to flows])
AT_CHECK([ovstest test-ovn exhaustive --operation=flow --nvars=0 --svars=4 4], [0],
  [Tested converting to flows 21978 expressions of 4 terminals with 4 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 4-term mixed expressions to flows])
AT_CHECK([ovstest test-ovn exhaustive --operation=flow --nvars=1 --bits=2 --svars=1 --relops='==' 4], [0],
  [Tested converting to flows 37994 expressions of 4 terminals with 1 numeric vars (each 2 bits) in terms of operators == and 1 string vars.
])
AT_CLEANUP

AT_SETUP([ovn -- 3-term numeric expressions to flows])
AT_CHECK([ovstest test-ovn exhaustive --operation=flow --nvars=3 --svars=0 --bits=3 --relops='==' 3], [0],
  [Tested converting to flows 38394 expressions of 3 terminals with 3 numeric vars (each 3 bits) in terms of operators ==.
])
AT_CLEANUP

AT_SETUP([ovn -- converting expressions to flows -- string fields])
expr_to_flow () {
    echo "$1" | ovstest test-ovn expr-to-flows | sort
}
AT_CHECK([expr_to_flow 'inport == "eth0"'], [0], [reg6=0x5
])
AT_CHECK([expr_to_flow 'inport == "eth1"'], [0], [reg6=0x6
])
AT_CHECK([expr_to_flow 'inport == "eth2"'], [0], [(no flows)
])
AT_CHECK([expr_to_flow 'inport == "eth0" && ip'], [0], [dnl
ip,reg6=0x5
ipv6,reg6=0x5
])
AT_CHECK([expr_to_flow 'inport == "eth1" && ip'], [0], [dnl
ip,reg6=0x6
ipv6,reg6=0x6
])
AT_CHECK([expr_to_flow 'inport == "eth2" && ip'], [0], [(no flows)
])
AT_CHECK([expr_to_flow 'inport == {"eth0", "eth1", "eth2", "LOCAL"}'], [0],
[reg6=0x5
reg6=0x6
reg6=0xfffe
])
AT_CHECK([expr_to_flow 'inport == {"eth0", "eth1", "eth2"} && ip'], [0], [dnl
ip,reg6=0x5
ip,reg6=0x6
ipv6,reg6=0x5
ipv6,reg6=0x6
])
AT_CHECK([expr_to_flow 'inport == "eth0" && inport == "eth1"'], [0], [dnl
(no flows)
])
AT_CLEANUP

AT_SETUP([ovn -- action parsing])
dnl Text before => is input, text after => is expected output.
AT_DATA([test-cases.txt], [[
# drop
drop; => actions=drop, prereqs=1
drop; next; => Syntax error at `next' expecting end of input.
next; drop; => Syntax error at `drop' expecting action.

# output
output; => actions=resubmit(,64), prereqs=1

# next
next; => actions=resubmit(,27), prereqs=1
next(0); => actions=resubmit(,16), prereqs=1
next(15); => actions=resubmit(,31), prereqs=1

next(); => Syntax error at `)' expecting small integer.
next(10; => Syntax error at `;' expecting `)'.
next(16); => "next" argument must be in range 0 to 15.

# Loading a constant value.
tcp.dst=80; => actions=set_field:80->tcp_dst, prereqs=ip.proto == 0x6 && (eth.type == 0x800 || eth.type == 0x86dd)
eth.dst[40] = 1; => actions=set_field:01:00:00:00:00:00/01:00:00:00:00:00->eth_dst, prereqs=1
vlan.pcp = 2; => actions=set_field:0x4000/0xe000->vlan_tci, prereqs=vlan.tci[12]
vlan.tci[13..15] = 2; => actions=set_field:0x4000/0xe000->vlan_tci, prereqs=1
inport = ""; => actions=set_field:0->reg6,set_field:0->in_port, prereqs=1
ip.ttl = 4; => actions=set_field:4->nw_ttl, prereqs=eth.type == 0x800 || eth.type == 0x86dd
outport="eth0"; next; outport="LOCAL"; next; => actions=set_field:0x5->reg7,resubmit(,27),set_field:0xfffe->reg7,resubmit(,27), prereqs=1

inport[1] = 1; => Cannot select subfield of string field inport.
ip.proto[1] = 1; => Cannot select subfield of nominal field ip.proto.
eth.dst[40] == 1; => Syntax error at `==' expecting `='.
ip = 1; => Predicate symbol ip used where lvalue required.
ip.proto = 6; => Field ip.proto is not modifiable.
inport = {"a", "b"}; => Assignments require a single value.
inport = {}; => Syntax error at `}' expecting constant.
bad_prereq = 123; => Error parsing expression `xyzzy' encountered as prerequisite or predicate of initial expression: Syntax error at `xyzzy' expecting field name.
self_recurse = 123; => Error parsing expression `self_recurse != 0' encountered as prerequisite or predicate of initial expression: Error parsing expression `self_recurse != 0' encountered as prerequisite or predicate of initial expression: Recursive expansion of symbol `self_recurse'.
vlan.present = 0; => Predicate symbol vlan.present used where lvalue required.

# Moving one field into another.
reg0 = reg1; => actions=move:OXM_OF_PKT_REG0[0..31]->OXM_OF_PKT_REG0[32..63], prereqs=1
vlan.pcp = reg0[0..2]; => actions=move:OXM_OF_PKT_REG0[32..34]->NXM_OF_VLAN_TCI[13..15], prereqs=vlan.tci[12]
reg0[10] = vlan.pcp[1]; => actions=move:NXM_OF_VLAN_TCI[14]->OXM_OF_PKT_REG0[42], prereqs=vlan.tci[12]
outport = inport; => actions=move:NXM_NX_REG6[]->NXM_NX_REG7[], prereqs=1

reg0[0] = vlan.present; => Predicate symbol vlan.present used where lvalue required.
reg0 = reg1[0..10]; => Can't assign 11-bit value to 32-bit destination.
inport = reg0; => Can't assign integer field (reg0) to string field (inport).
inport = big_string; => String fields inport and big_string are incompatible for assignment.
ip.proto = reg0[0..7]; => Field ip.proto is not modifiable.

# Exchanging fields.
reg0 <-> reg1; => actions=push:OXM_OF_PKT_REG0[0..31],push:OXM_OF_PKT_REG0[32..63],pop:OXM_OF_PKT_REG0[0..31],pop:OXM_OF_PKT_REG0[32..63], prereqs=1
vlan.pcp <-> reg0[0..2]; => actions=push:OXM_OF_PKT_REG0[32..34],push:NXM_OF_VLAN_TCI[13..15],pop:OXM_OF_PKT_REG0[32..34],pop:NXM_OF_VLAN_TCI[13..15], prereqs=vlan.tci[12]
reg0[10] <-> vlan.pcp[1]; => actions=push:NXM_OF_VLAN_TCI[14],push:OXM_OF_PKT_REG0[42],pop:NXM_OF_VLAN_TCI[14],pop:OXM_OF_PKT_REG0[42], prereqs=vlan.tci[12]
outport <-> inport; => actions=push:NXM_NX_REG6[],push:NXM_NX_REG7[],pop:NXM_NX_REG6[],pop:NXM_NX_REG7[], prereqs=1

reg0[0] <-> vlan.present; => Predicate symbol vlan.present used where lvalue required.
reg0 <-> reg1[0..10]; => Can't exchange 32-bit field with 11-bit field.
inport <-> reg0; => Can't exchange string field (inport) with integer field (reg0).
inport <-> big_string; => String fields inport and big_string are incompatible for exchange.
ip.proto <-> reg0[0..7]; => Field ip.proto is not modifiable.
reg0[0..7] <-> ip.proto; => Field ip.proto is not modifiable.

# TTL decrement.
ip.ttl--; => actions=dec_ttl, prereqs=ip
ip.ttl => Syntax error at end of input expecting `--'.

# conntrack
ct_next; => actions=ct(table=27,zone=NXM_NX_REG5[0..15]), prereqs=ip
ct_commit; => actions=ct(commit,zone=NXM_NX_REG5[0..15]), prereqs=ip

# Contradictionary prerequisites (allowed but not useful):
ip4.src = ip6.src[0..31]; => actions=move:NXM_NX_IPV6_SRC[0..31]->NXM_OF_IP_SRC[], prereqs=eth.type == 0x800 && eth.type == 0x86dd
ip4.src <-> ip6.src[0..31]; => actions=push:NXM_NX_IPV6_SRC[0..31],push:NXM_OF_IP_SRC[],pop:NXM_NX_IPV6_SRC[0..31],pop:NXM_OF_IP_SRC[], prereqs=eth.type == 0x800 && eth.type == 0x86dd

## Miscellaneous negative tests.
; => Syntax error at `;'.
xyzzy; => Syntax error at `xyzzy' expecting action.
next; 123; => Syntax error at `123'.
next; xyzzy; => Syntax error at `xyzzy' expecting action.
next => Syntax error at end of input expecting ';'.
]])
sed 's/ =>.*//' test-cases.txt > input.txt
sed 's/.* => //' test-cases.txt > expout
AT_CHECK([ovstest test-ovn parse-actions < input.txt], [0], [expout])
AT_CLEANUP

AT_BANNER([OVN end-to-end tests])

# 3 hypervisors, one logical switch, 3 logical ports per hypervisor
AT_SETUP([ovn -- 3 HVs, 1 LS, 3 lports/HV])
AT_KEYWORDS([ovnarp])
AT_SKIP_IF([test $HAVE_PYTHON = no])
ovn_start

# Create hypervisors hv[123].
# Add vif1[123] to hv1, vif2[123] to hv2, vif3[123] to hv3.
# Add all of the vifs to a single logical switch lsw0.
# Turn on port security on all the vifs except vif[123]1.
# Make vif13, vif2[23], vif3[123] destinations for unknown MACs.
# Add some ACLs for Ethertypes 1234, 1235, 1236.
ovn-nbctl lswitch-add lsw0
net_add n1
for i in 1 2 3; do
    sim_add hv$i
    as hv$i
    ovs-vsctl add-br br-phys
    ovn_attach n1 br-phys 192.168.0.$i

    for j in 1 2 3; do
        ovs-vsctl add-port br-int vif$i$j -- set Interface vif$i$j external-ids:iface-id=lp$i$j options:tx_pcap=hv$i/vif$i$j-tx.pcap options:rxq_pcap=hv$i/vif$i$j-rx.pcap ofport-request=$i$j
        ovn-nbctl lport-add lsw0 lp$i$j
        if test $j = 1; then
            ovn-nbctl lport-set-addresses lp$i$j "f0:00:00:00:00:$i$j 192.168.0.$i$j" unknown
        else
            if test $j = 3; then
                ip_addrs="192.168.0.$i$j fe80::ea2a:eaff:fe28:$i$j/64 192.169.0.$i$j"
            else
                ip_addrs="192.168.0.$i$j"
            fi
            ovn-nbctl lport-set-addresses lp$i$j "f0:00:00:00:00:$i$j $ip_addrs"
            ovn-nbctl lport-set-port-security lp$i$j f0:00:00:00:00:$i$j
        fi
    done
done
ovn-nbctl acl-add lsw0 from-lport 1000 'eth.type == 0x1234' drop
ovn-nbctl acl-add lsw0 from-lport 1000 'eth.type == 0x1235 && inport == "lp11"' drop
ovn-nbctl acl-add lsw0 to-lport 1000 'eth.type == 0x1236 && outport == "lp33"' drop

# Pre-populate the hypervisors' ARP tables so that we don't lose any
# packets for ARP resolution (native tunneling doesn't queue packets
# for ARP resolution).
ovn_populate_arp

# Allow some time for ovn-northd and ovn-controller to catch up.
# XXX This should be more systematic.
sleep 1
ovn-sbctl dump-flows -- list multicast_group

echo "------ hv1 dump ------"
as hv1 ovs-vsctl show
as hv1 ovs-ofctl -O OpenFlow13 dump-flows br-int

echo "------ hv2 dump ------"
as hv2 ovs-vsctl show
as hv2 ovs-ofctl -O OpenFlow13 dump-flows br-int

echo "------ hv3 dump ------"
as hv3 ovs-vsctl show
as hv3 ovs-ofctl -O OpenFlow13 dump-flows br-int

# Given the name of a logical port, prints the name of the hypervisor
# on which it is located.
vif_to_hv() {
    echo hv${1%?}
}

# test_packet INPORT DST SRC ETHTYPE OUTPORT...
#
# This shell function causes a packet to be received on INPORT.  The packet's
# content has Ethernet destination DST and source SRC (each exactly 12 hex
# digits) and Ethernet type ETHTYPE (4 hex digits).  The OUTPORTs (zero or
# more) list the VIFs on which the packet should be received.  INPORT and the
# OUTPORTs are specified as lport numbers, e.g. 11 for vif11.
trim_zeros() {
    sed 's/\(00\)\{1,\}$//'
}
for i in 1 2 3; do
    for j in 1 2 3; do
        : > $i$j.expected
    done
done
test_packet() {
    local inport=$1 packet=$2$3$4; shift; shift; shift; shift
    hv=`vif_to_hv $inport`
    vif=vif$inport
    as $hv ovs-appctl netdev-dummy/receive $vif $packet
    for outport; do
        echo $packet | trim_zeros >> $outport.expected
    done
}

# test_arp INPORT SHA SPA TPA [REPLY_HA]
#
# Causes a packet to be received on INPORT.  The packet is an ARP
# request with SHA, SPA, and TPA as specified.  If REPLY_HA is provided, then
# it should be the hardware address of the target to expect to receive in an
# ARP reply; otherwise no reply is expected.
#
# INPORT is an lport number, e.g. 11 for vif11.
# SHA and REPLY_HA are each 12 hex digits.
# SPA and TPA are each 8 hex digits.
test_arp() {
    local inport=$1 sha=$2 spa=$3 tpa=$4 reply_ha=$5
    local request=ffffffffffff${sha}08060001080006040001${sha}${spa}ffffffffffff${tpa}
    hv=`vif_to_hv $inport`
    as $hv ovs-appctl netdev-dummy/receive vif$inport $request

    if test X$reply_ha = X; then
        # Expect to receive the broadcast ARP on the other logical switch ports
        # if no reply is expected.
        local i j
        for i in 1 2 3; do
            for j in 1 2 3; do
                if test $i$j != $inport; then
                    echo $request >> $i$j.expected
                fi
            done
        done
    else
        # Expect to receive the reply, if any.
        local reply=${sha}${reply_ha}08060001080006040002${reply_ha}${tpa}${sha}${spa}
        echo $reply >> $inport.expected
    fi
}

ip_to_hex() {
    printf "%02x%02x%02x%02x" "$@"
}

# Send packets between all pairs of source and destination ports:
#
# 1. Unicast packets are delivered to exactly one lport (except that packets
#    destined to their input ports are dropped).
#
# 2. Broadcast and multicast are delivered to all lports except the input port.
#
# 3. When port security is turned on, the lswitch drops packets from the wrong
#    MAC address.
#
# 4. The lswitch drops all packets with a VLAN tag.
#
# 5. The lswitch drops all packets with a multicast source address.  (This only
#    affects behavior when port security is turned off, since otherwise port
#    security would drop the packet anyway.)
#
# 6. The lswitch delivers packets with an unknown destination to lports with
#    "unknown" among their MAC addresses (and port security disabled).
#
# 7. The lswitch drops unicast packets that violate an ACL.
#
# 8. The lswitch drops multicast and broadcast packets that violate an ACL.
#
# 9. ARP requests to known IPs are responded directly.
#
# 10. No response to ARP requests for unknown IPs.
for is in 1 2 3; do
    for js in 1 2 3; do
        s=$is$js
        bcast=
        unknown=
        bacl2=
        bacl3=
        for id in 1 2 3; do
            for jd in 1 2 3; do
                d=$id$jd

                if test $d != $s; then unicast=$d; else unicast=; fi
                test_packet $s f000000000$d f000000000$s $s$d $unicast     #1

                if test $d != $s && test $js = 1; then
                    impersonate=$d
                else
                    impersonate=
                fi
                test_packet $s f000000000$d f00000000055 55$d $impersonate #3

                if test $d != $s && test $s != 11; then acl2=$d; else acl2=; fi
                if test $d != $s && test $d != 33; then acl3=$d; else acl3=; fi
                test_packet $s f000000000$d f000000000$s 1234        #7, acl1
                test_packet $s f000000000$d f000000000$s 1235 $acl2  #7, acl2
                test_packet $s f000000000$d f000000000$s 1236 $acl3  #7, acl3

                test_packet $s f000000000$d f00000000055 810000091234      #4
                test_packet $s f000000000$d 0100000000$s $s$d              #5

                if test $d != $s && test $jd = 1; then
                    unknown="$unknown $d"
                fi
                bcast="$bcast $unicast"
                bacl2="$bacl2 $acl2"
                bacl3="$bacl3 $acl3"

                sip=`ip_to_hex 192 168 0 $i$j`
                tip=`ip_to_hex 192 168 0 $id$jd`
                tip_unknown=`ip_to_hex 11 11 11 11`
                test_arp $s f000000000$s $sip $tip f000000000$d            #9
                test_arp $s f000000000$s $sip $tip_unknown                 #10

                if test $jd = 3; then
                    # lport[123]3 has an additional ip 192.169.0.[123]3.
                    tip=`ip_to_hex 192 169 0 $id$jd`
                    test_arp $s f000000000$s $sip $tip f000000000$d        #9
                fi
            done
        done

        # Broadcast and multicast.
        test_packet $s ffffffffffff f000000000$s ${s}ff $bcast             #2
        test_packet $s 010000000000 f000000000$s ${s}ff $bcast             #2
        if test $js = 1; then
            bcast_impersonate=$bcast
        else
            bcast_impersonate=
        fi
        test_packet $s 010000000000 f00000000044 44ff $bcast_impersonate   #3

        test_packet $s f0000000ffff f000000000$s ${s}66 $unknown           #6

        test_packet $s ffffffffffff f000000000$s 1234                #8, acl1
        test_packet $s ffffffffffff f000000000$s 1235 $bacl2         #8, acl2
        test_packet $s ffffffffffff f000000000$s 1236 $bacl3         #8, acl3
        test_packet $s 010000000000 f000000000$s 1234                #8, acl1
        test_packet $s 010000000000 f000000000$s 1235 $bacl2         #8, acl2
        test_packet $s 010000000000 f000000000$s 1236 $bacl3         #8, acl3
    done
done

# set address for lp13 with invalid characters.
# lp13 should be configured with only 192.168.0.13.
ovn-nbctl lport-set-addresses lp13 "f0:00:00:00:00:13 192.168.0.13 invalid 192.169.0.13"
sip=`ip_to_hex 192 168 0 11`
tip=`ip_to_hex 192 168 0 13`
test_arp 11 f00000000011  $sip $tip f00000000013

tip=`ip_to_hex 192 169 0 13`
#arp request for 192.169.0.13 should be flooded
test_arp 11 f00000000011  $sip $tip

# Allow some time for packet forwarding.
# XXX This can be improved.
sleep 1

# Now check the packets actually received against the ones expected.
for i in 1 2 3; do
    for j in 1 2 3; do
        file=hv$i/vif$i$j-tx.pcap
        echo $file
        $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i$j.packets
        sort $i$j.expected > expout
        AT_CHECK([sort $i$j.packets], [0], [expout])
        echo
    done
done

# Gracefully terminate daemons
for daemon in ovn-controller ovn-northd ovsdb-server; do
    ovs-appctl -t $daemon exit
done
AT_CLEANUP

# 2 hypervisors, 4 logical ports per HV
# 2 locally attached networks (one flat, one vlan tagged over same device)
# 2 ports per HV on each network
AT_SETUP([ovn -- 2 HVs, 4 lports/HV, localnet ports])
AT_KEYWORDS([ovn-localnet])
AT_SKIP_IF([test $HAVE_PYTHON = no])
ovn_start

# We model each logical port connectivity to a locally attached
# physical network with its own logical switch.  One port is
# for the VIF, and the other port is a special 'localnet' port.

net_add n1
for i in 1 2; do
    sim_add hv$i
    as hv$i
    ovs-vsctl add-br br-phys
    ovs-vsctl set open . external-ids:ovn-bridge-mappings=phys:br-phys
    ovn_attach n1 br-phys 192.168.0.$i

    for j in 1 2 3 4; do
        ovs-vsctl add-port br-int vif$i$j -- \
            set Interface vif$i$j external-ids:iface-id=lp$i$j \
                                  options:tx_pcap=hv$i/vif$i$j-tx.pcap \
                                  options:rxq_pcap=hv$i/vif$i$j-rx.pcap \
                                  ofport-request=$i$j

        lswitch_name=phys-lp$i$j
        lport_name=lp$i$j
        ln_port_name=phys-ln-$i$j

        ovn-nbctl lswitch-add $lswitch_name

        if test $j -le 2; then
            ovn-nbctl lport-add $lswitch_name $ln_port_name
        else
            ovn-nbctl lport-add $lswitch_name $ln_port_name "" 101
        fi
        ovn-nbctl lport-set-addresses $ln_port_name unknown
        ovn-nbctl lport-set-type $ln_port_name localnet
        ovn-nbctl lport-set-options $ln_port_name network_name=phys

        ovn-nbctl lport-add $lswitch_name $lport_name
        ovn-nbctl lport-set-addresses $lport_name f0:00:00:00:00:$i$j
        ovn-nbctl lport-set-port-security $lport_name f0:00:00:00:00:$i$j

        OVS_WAIT_UNTIL([test x`ovn-nbctl lport-get-up $lport_name` = xup])
    done
done

ovn_populate_arp

# XXX This is now the 3rd copy of these functions in this file ...

# Given the name of a logical port, prints the name of the hypervisor
# on which it is located.
vif_to_hv() {
    echo hv${1%?}
}
#
# test_packet INPORT DST SRC ETHTYPE OUTPORT...
#
# This shell function causes a packet to be received on INPORT.  The packet's
# content has Ethernet destination DST and source SRC (each exactly 12 hex
# digits) and Ethernet type ETHTYPE (4 hex digits).  The OUTPORTs (zero or
# more) list the VIFs on which the packet should be received.  INPORT and the
# OUTPORTs are specified as lport numbers, e.g. 11 for vif11.
trim_zeros() {
    sed 's/\(00\)\{1,\}$//'
}
for i in 1 2; do
    for j in 1 2 3 4; do
        : > $i$j.expected
    done
done
test_packet() {
    local inport=$1 src=$2 dst=$3 eth=$4; shift; shift; shift; shift
    local packet=${src}${dst}${eth}
    hv=`vif_to_hv $inport`
    vif=vif$inport
    as $hv ovs-appctl netdev-dummy/receive $vif $packet
    for outport; do
        echo $packet | trim_zeros >> $outport.expected
    done
}

# lp11 and lp21 are on the same network (phys, untagged)
# and on different hypervisors
test_packet 11 f00000000021 f00000000011 1121 21
test_packet 21 f00000000011 f00000000021 2111 11

# lp11 and lp12 are on the same network (phys, untagged)
# and on the same hypervisor
test_packet 11 f00000000012 f00000000011 1112 12
test_packet 12 f00000000011 f00000000012 1211 11

# lp13 and lp23 are on the same network (phys, VLAN 101)
# and on different hypervisors
test_packet 13 f00000000023 f00000000013 1323 23
test_packet 23 f00000000013 f00000000023 2313 13

# lp13 and lp14 are on the same network (phys, VLAN 101)
# and on the same hypervisor
test_packet 13 f00000000014 f00000000013 1314 14
test_packet 14 f00000000013 f00000000014 1413 13

# Ports that should not be able to communicate
test_packet 11 f00000000013 f00000000011 1113
test_packet 11 f00000000023 f00000000011 1123
test_packet 21 f00000000013 f00000000021 2113
test_packet 21 f00000000023 f00000000021 2123
test_packet 13 f00000000011 f00000000013 1311
test_packet 13 f00000000021 f00000000013 1321
test_packet 23 f00000000011 f00000000023 2311
test_packet 23 f00000000021 f00000000023 2321

# Allow some time for packet forwarding.
# XXX This can be improved.
sleep 1

# Dump a bunch of info helpful for debugging if there's a failure.

echo "------ OVN dump ------"
ovn-nbctl show
ovn-sbctl show

echo "------ hv1 dump ------"
as hv1 ovs-vsctl show
as hv1 ovs-ofctl -O OpenFlow13 dump-flows br-int

echo "------ hv2 dump ------"
as hv2 ovs-vsctl show
as hv2 ovs-ofctl -O OpenFlow13 dump-flows br-int

# Now check the packets actually received against the ones expected.
for i in 1 2; do
    for j in 1 2 3 4; do
        file=hv$i/vif$i$j-tx.pcap
        echo $file
        $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i$j.packets
        sort $i$j.expected > expout
        AT_CHECK([sort $i$j.packets], [0], [expout])
        echo
    done
done

# Gracefully terminate daemons
for daemon in ovn-controller ovn-northd ovsdb-server; do
    ovs-appctl -t $daemon exit
done
AT_CLEANUP

AT_SETUP([ovn -- 3 HVs, 1 VIFs/HV, 1 GW, 1 LS])
AT_SKIP_IF([test $HAVE_PYTHON = no])
ovn_start

# Configure the Northbound database
ovn-nbctl lswitch-add lsw0

ovn-nbctl lport-add lsw0 lp1
ovn-nbctl lport-set-addresses lp1 f0:00:00:00:00:01

ovn-nbctl lport-add lsw0 lp2
ovn-nbctl lport-set-addresses lp2 f0:00:00:00:00:02

ovn-nbctl lport-add lsw0 lp-vtep
ovn-nbctl lport-set-type lp-vtep vtep
ovn-nbctl lport-set-options lp-vtep vtep-physical-switch=br-vtep vtep-logical-switch=lsw0
ovn-nbctl lport-set-addresses lp-vtep unknown

net_add n1               # Network to connect hv1, hv2, and vtep
net_add n2               # Network to connect vtep and hv3

# Create hypervisor hv1 connected to n1
sim_add hv1
as hv1
ovs-vsctl add-br br-phys
ovn_attach n1 br-phys 192.168.0.1
ovs-vsctl add-port br-int vif1 -- set Interface vif1 external-ids:iface-id=lp1 options:tx_pcap=hv1/vif1-tx.pcap options:rxq_pcap=hv1/vif1-rx.pcap ofport-request=1

# Create hypervisor hv2 connected to n1
sim_add hv2
as hv2
ovs-vsctl add-br br-phys
ovn_attach n1 br-phys 192.168.0.2
ovs-vsctl add-port br-int vif2 -- set Interface vif2 external-ids:iface-id=lp2 options:tx_pcap=hv2/vif2-tx.pcap options:rxq_pcap=hv2/vif2-rx.pcap ofport-request=1


# Start the vtep emulator with a leg in both networks
sim_add vtep
as vtep

ovsdb-tool create "$ovs_base"/vtep/vtep.db "$abs_top_srcdir"/vtep/vtep.ovsschema || return 1
ovs-appctl -t ovsdb-server ovsdb-server/add-db "$ovs_base"/vtep/vtep.db

ovs-vsctl add-br br-phys
net_attach n1 br-phys

mac=`ovs-vsctl get Interface br-phys mac_in_use | sed s/\"//g`
arp_table="$arp_table $sandbox,br-phys,192.168.0.3,$mac"
ovs-appctl netdev-dummy/ip4addr br-phys 192.168.0.3/24 >/dev/null || return 1
ovs-appctl ovs/route/add 192.168.0.3/24 br-phys >/dev/null || return 1

ovs-vsctl add-br br-vtep
net_attach n2 br-vtep

vtep-ctl add-ps br-vtep
vtep-ctl set Physical_Switch br-vtep tunnel_ips=192.168.0.3
vtep-ctl add-ls lsw0

start_daemon ovs-vtep br-vtep
start_daemon ovn-controller-vtep --vtep-db=unix:"$ovs_base"/vtep/db.sock --ovnsb-db=unix:"$ovs_base"/ovn-sb/ovn-sb.sock

sleep 1

vtep-ctl bind-ls br-vtep br-vtep_n2 0 lsw0

sleep 1

# Add hv3 on the other side of the vtep
sim_add hv3
as hv3
ovs-vsctl add-br br-phys
net_attach n2 br-phys

ovs-vsctl add-port br-phys vif3 -- set Interface vif3 options:tx_pcap=hv3/vif3-tx.pcap options:rxq_pcap=hv3/vif3-rx.pcap ofport-request=1

# Pre-populate the hypervisors' ARP tables so that we don't lose any
# packets for ARP resolution (native tunneling doesn't queue packets
# for ARP resolution).
ovn_populate_arp

# Allow some time for ovn-northd and ovn-controller to catch up.
# XXX This should be more systematic.
sleep 1
ovn-sbctl show

# test_packet INPORT DST SRC ETHTYPE OUTPORT...
#
# This shell function causes a packet to be received on INPORT.  The packet's
# content has Ethernet destination DST and source SRC (each exactly 12 hex
# digits) and Ethernet type ETHTYPE (4 hex digits).  The OUTPORTs (zero or
# more) list the VIFs on which the packet should be received.  INPORT and the
# OUTPORTs are specified as lport numbers, e.g. 1 for vif1.
trim_zeros() {
    sed 's/\(00\)\{1,\}$//'
}
for i in 1 2 3; do
    : > $i.expected
done
test_packet() {
    local inport=$1 packet=$2$3$4; shift; shift; shift; shift
    #hv=hv`echo $inport | sed 's/^\(.\).*/\1/'`
    hv=hv$inport
    vif=vif$inport
    as $hv ovs-appctl netdev-dummy/receive $vif $packet
    for outport; do
        echo $packet | trim_zeros >> $outport.expected
    done
}

# Send packets between all pairs of source and destination ports:
#
# 1. Unicast packets are delivered to exactly one lport (except that packets
#    destined to their input ports are dropped).
#
# 2. Broadcast and multicast are delivered to all lports except the input port.
#
# 3. The lswitch delivers packets with an unknown destination to lports with
#    "unknown" among their MAC addresses (and port security disabled).
for s in 1 2 3; do
    bcast=
    unknown=
    for d in 1 2 3; do
        if test $d != $s; then unicast=$d; else unicast=; fi
        test_packet $s f0000000000$d f0000000000$s 00$s$d $unicast       #1

        # The vtep (vif3) is the only one configured for "unknown"
        if test $d != $s && test $d = 3; then
            unknown="$unknown $d"
        fi
        bcast="$bcast $unicast"
    done

    # Broadcast and multicast.
    # xxx ovn-controller-vtep doesn't handle multicast traffic that is
    # xxx sourced from the gateway properly.
    #test_packet $s ffffffffffff f0000000000$s 0${s}ff $bcast             #2
    #test_packet $s 010000000000 f0000000000$s 0${s}ff $bcast             #2

    test_packet $s f0000000ffff f0000000000$s 0${s}66 $unknown           #3
done

# Allow some time for packet forwarding.
# XXX This can be improved.
sleep 1

# Now check the packets actually received against the ones expected.
for i in 1 2 3; do
    file=hv$i/vif$i-tx.pcap
    echo $file
    $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i.packets
    sort $i.expected > expout
    AT_CHECK([sort $i.packets], [0], [expout])
    echo
done

# Gracefully terminate daemons
for daemon in ovs-vtep ovn-controller-vtep ovn-controller ovn-northd ovsdb-server; do
    ovs-appctl -t $daemon exit
done
AT_CLEANUP

# 3 hypervisors, 3 logical switches with 3 logical ports each, 1 logical router
AT_SETUP([ovn -- 3 HVs, 3 LS, 3 lports/LS, 1 LR])
AT_SKIP_IF([test $HAVE_PYTHON = no])
ovn_start

# Logical network:
#
# Three logical switches ls1, ls2, ls3.
# One logical router lr0 connected to ls[123],
# with nine subnets, three per logical switch:
#
#    lrp11 on ls1 for subnet 192.168.11.0/24
#    lrp12 on ls1 for subnet 192.168.12.0/24
#    lrp13 on ls1 for subnet 192.168.13.0/24
#    ...
#    lrp33 on ls3 for subnet 192.168.33.0/24
#
# 27 VIFs, 9 per LS, 3 per subnet: lp[123][123][123], where the first two
# digits are the subnet and the last digit distinguishes the VIF.
for i in 1 2 3; do
    ovn-nbctl lswitch-add ls$i
    for j in 1 2 3; do
        for k in 1 2 3; do
	    ovn-nbctl \
		-- lport-add ls$i lp$i$j$k \
		-- lport-set-addresses lp$i$j$k "f0:00:00:00:0$i:$j$k 192.168.$i$j.$k"
        done
    done
done

ovn-nbctl create Logical_Router name=lr0
for i in 1 2 3; do
    for j in 1 2 3; do
	lrp_uuid=`ovn-nbctl \
	    -- --id=@lrp create Logical_Router_Port name=lrp$i$j \
	       network=192.168.$i$j.254/24 mac='"00:00:00:00:ff:'$i$j'"' \
	    -- add Logical_Router lr0 ports @lrp \
	    -- lport-add ls$i lrp$i$j-attachment`
	ovn-nbctl \
	    set Logical_Port lrp$i$j-attachment type=router \
                             options:router-port=lrp$i$j \
                             addresses='"00:00:00:00:ff:'$i$j'"'
    done
done

ovn-nbctl set Logical_Port lrp33-attachment \
    addresses='"00:00:00:00:ff:33 192.168.33.254"'

# Physical network:
#
# Three hypervisors hv[123].
# lp?1[123] spread across hv[123]: lp?11 on hv1, lp?12 on hv2, lp?13 on hv3.
# lp?2[123] spread across hv[23]: lp?21 and lp?22 on hv2, lp?23 on hv3.
# lp?3[123] all on hv3.


# Given the name of a logical port, prints the name of the hypervisor
# on which it is located.
vif_to_hv() {
    case $1 in dnl (
        ?11) echo 1 ;; dnl (
        ?12 | ?21 | ?22) echo 2 ;; dnl (
        ?13 | ?23 | ?3?) echo 3 ;;
    esac
}

# Given the name of a logical port, prints the name of its logical router
# port, e.g. "vif_to_lrp 123" yields 12.
vif_to_lrp() {
    echo ${1%?}
}

# Given the name of a logical port, prints the name of its logical
# switch, e.g. "vif_to_ls 123" yields 1.
vif_to_ls() {
    echo ${1%??}
}

net_add n1
for i in 1 2 3; do
    sim_add hv$i
    as hv$i
    ovs-vsctl add-br br-phys
    ovn_attach n1 br-phys 192.168.0.$i
done
for i in 1 2 3; do
    for j in 1 2 3; do
        for k in 1 2 3; do
	    hv=`vif_to_hv $i$j$k`
	    as hv$hv ovs-vsctl \
		-- add-port br-int vif$i$j$k \
		-- set Interface vif$i$j$k \
		       external-ids:iface-id=lp$i$j$k \
		       options:tx_pcap=hv$hv/vif$i$j$k-tx.pcap \
		       options:rxq_pcap=hv$hv/vif$i$j$k-rx.pcap \
		       ofport-request=$i$j$k
        done
    done
done

# Pre-populate the hypervisors' ARP tables so that we don't lose any
# packets for ARP resolution (native tunneling doesn't queue packets
# for ARP resolution).
ovn_populate_arp

# Allow some time for ovn-northd and ovn-controller to catch up.
# XXX This should be more systematic.
sleep 1

# test_ip INPORT SRC_MAC DST_MAC SRC_IP DST_IP OUTPORT...
#
# This shell function causes a packet to be received on INPORT.  The packet's
# content has Ethernet destination DST and source SRC (each exactly 12 hex
# digits) and Ethernet type ETHTYPE (4 hex digits).  The OUTPORTs (zero or
# more) list the VIFs on which the packet should be received.  INPORT and the
# OUTPORTs are specified as lport numbers, e.g. 11 for vif11.
trim_zeros() {
    sed 's/\(00\)\{1,\}$//'
}
for i in 1 2 3; do
    for j in 1 2 3; do
        for k in 1 2 3; do
            : > $i$j$k.expected
	done
    done
done
test_ip() {
    # This packet has bad checksums but logical L3 routing doesn't check.
    local inport=$1 src_mac=$2 dst_mac=$3 src_ip=$4 dst_ip=$5
    local packet=${dst_mac}${src_mac}08004500001c0000000040110000${src_ip}${dst_ip}0035111100080000
    shift; shift; shift; shift; shift
    hv=hv`vif_to_hv $inport`
    as $hv ovs-appctl netdev-dummy/receive vif$inport $packet
    #as $hv ovs-appctl ofproto/trace br-int in_port=$inport $packet
    in_ls=`vif_to_ls $inport`
    in_lrp=`vif_to_lrp $inport`
    for outport; do
	out_ls=`vif_to_ls $outport`
        if test $in_ls = $out_ls; then
            # Ports on the same logical switch receive exactly the same packet.
            echo $packet
        else
            # Routing decrements TTL and updates source and dest MAC
            # (and checksum).
	    out_lrp=`vif_to_lrp $outport`
            echo f00000000${outport}00000000ff${out_lrp}08004500001c00000000"3f1101"00${src_ip}${dst_ip}0035111100080000
        fi | trim_zeros >> $outport.expected
    done
}

as hv1 ovs-vsctl --columns=name,ofport list interface
as hv1 ovn-sbctl dump-flows
as hv1 ovs-ofctl dump-flows br-int

# Send IP packets between all pairs of source and destination ports:
#
# 1. Unicast IP packets are delivered to exactly one lport (except
#    that packets destined to their input ports are dropped).
#
# 2. Broadcast IP packets are delivered to all lports except the input port.
ip_to_hex() {
    printf "%02x%02x%02x%02x" "$@"
}
for is in 1 2 3; do
    for js in 1 2 3; do
	for ks in 1 2 3; do
	    bcast=
	    s=$is$js$ks
	    smac=f00000000$s
	    sip=`ip_to_hex 192 168 $is$js $ks`
	    for id in 1 2 3; do
		for jd in 1 2 3; do
                    for kd in 1 2 3; do
			d=$id$jd$kd
			dip=`ip_to_hex 192 168 $id$jd $kd`
			if test $is = $id; then dmac=f00000000$d; else dmac=00000000ff$is$js; fi
			if test $d != $s; then unicast=$d; else unicast=; fi

			test_ip $s $smac $dmac $sip $dip $unicast #1

			if test $id = $is && test $d != $s; then bcast="$bcast $d"; fi
                    done
		done
	    done
	    test_ip $s $smac ffffffffffff $sip ffffffff $bcast #2
        done
    done
done

# test_arp INPORT SHA SPA TPA [REPLY_HA]
#
# Causes a packet to be received on INPORT.  The packet is an ARP
# request with SHA, SPA, and TPA as specified.  If REPLY_HA is provided, then
# it should be the hardware address of the target to expect to receive in an
# ARP reply; otherwise no reply is expected.
#
# INPORT is an lport number, e.g. 11 for vif11.
# SHA and REPLY_HA are each 12 hex digits.
# SPA and TPA are each 8 hex digits.
test_arp() {
    local inport=$1 sha=$2 spa=$3 tpa=$4 reply_ha=$5
    local request=ffffffffffff${sha}08060001080006040001${sha}${spa}ffffffffffff${tpa}
    hv=hv`vif_to_hv $inport`
    as $hv ovs-appctl netdev-dummy/receive vif$inport $request
    #as $hv ovs-appctl ofproto/trace br-int in_port=$inport $request

    # Expect to receive the broadcast ARP on the other logical switch ports if
    # IP address is not configured to the lswitch patch port.
    local i=`vif_to_ls $inport`
    local j k
    for j in 1 2 3; do
        for k in 1 2 3; do
            # 192.168.33.254 is configured to the lswtich patch port for lrp33,
            # so no ARP flooding expected for it.
            if test $i$j$k != $inport && test $tpa != `ip_to_hex 192 168 33 254`; then
                echo $request >> $i$j$k.expected
            fi
        done
    done

    # Expect to receive the reply, if any.
    if test X$reply_ha != X; then
        lrp=`vif_to_lrp $inport`
        local reply=${sha}00000000ff${lrp}08060001080006040002${reply_ha}${tpa}${sha}${spa}
        echo $reply >> $inport.expected
    fi
}

# Test router replies to ARP requests from all source ports:
#
# 3. Router replies to query for its MAC address from port's own IP address.
#
# 4. Router replies to query for its MAC address from any random IP address
#    in its subnet.
#
# 5. Router replies to query for its MAC address from another subnet.
#
# 6. No reply to query for IP address other than router IP.
for i in 1 2 3; do
    for j in 1 2 3; do
        for k in 1 2 3; do
	    smac=f00000000$i$j$k               # Source MAC
	    sip=`ip_to_hex 192 168 $i$j $k`    # Source IP
	    rip=`ip_to_hex 192 168 $i$j 254`   # Router IP
	    rmac=00000000ff$i$j                # Router MAC
	    otherip=`ip_to_hex 192 168 $i$j 55` # Some other IP in subnet
	    test_arp $i$j$k $smac $sip        $rip        $rmac #3
	    test_arp $i$j$k $smac $otherip    $rip        $rmac #4
	    test_arp $i$j$k $smac 0a123456    $rip        $rmac #5
	    test_arp $i$j$k $smac $sip        $otherip          #6
        done
    done
done
# Allow some time for packet forwarding.
# XXX This can be improved.
sleep 1

# Now check the packets actually received against the ones expected.
for i in 1 2 3; do
    for j in 1 2 3; do
        for k in 1 2 3; do
	    file=hv`vif_to_hv $i$j$k`/vif$i$j$k-tx.pcap
	    echo $file
	    $PYTHON "$top_srcdir/utilities/ovs-pcap.in" $file | trim_zeros > $i$j$k.packets
	    sort $i$j$k.expected > expout
	    AT_CHECK([sort $i$j$k.packets], [0], [expout])
	    echo
        done
    done
done

# Gracefully terminate daemons
for daemon in ovn-controller ovn-northd ovsdb-server; do
    ovs-appctl -t $daemon exit
done
AT_CLEANUP