mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-12-23 02:01:55 +00:00
072821e55e
Current implementation handles flowspec prefix length and offset only in bytes, but RFC 8956 (Dissemination of Flow Specification Rules for IPv6) Section 3.1 [1] and example in Section 3.8.2 [2] states the pattern should begin right after offset *bits*. For example, pattern "::1:1234:5678:9800:0/60-104" is currently serialized as "02 68 3c 01 12 34 56 78 98", but it should shift its pattern 4 more bits to the left: "02 68 3c 11 23 45 67 89 80". This patch implements shifting left/right for IPv6 type and use it to correct the behaviour. Test data are replaced with the correct ones. Minor changes and test vectors done by committer. [1]: https://www.rfc-editor.org/rfc/rfc8956.html#section-3.1 [2]: https://www.rfc-editor.org/rfc/rfc8956.html#section-3.8.2
739 lines
21 KiB
C
739 lines
21 KiB
C
/*
|
|
* BIRD Library -- Flow specification (RFC 5575) Tests
|
|
*
|
|
* (c) 2016 CZ.NIC z.s.p.o.
|
|
*
|
|
* Can be freely distributed and used under the terms of the GNU GPL.
|
|
*/
|
|
|
|
#include "test/birdtest.h"
|
|
#include "lib/flowspec.h"
|
|
|
|
#define NET_ADDR_FLOW4_(prefix,pxlen,nlri) \
|
|
({ \
|
|
uint _len = sizeof(nlri); \
|
|
net_addr_flow4 *_n = tmp_alloc(sizeof(net_addr_flow4) + _len); \
|
|
*_n = NET_ADDR_FLOW4(prefix, pxlen, _len); \
|
|
memcpy(_n->data, &(nlri), _len); \
|
|
if (_n->data[0] == 0) _n->data[0] = _len - 1; \
|
|
_n; \
|
|
})
|
|
|
|
#define NET_ADDR_FLOW4_NLRI(...) \
|
|
({ \
|
|
const byte _nlri[] = { __VA_ARGS__ }; \
|
|
NET_ADDR_FLOW4_(flow_read_ip4_part(_nlri + 1), _nlri[2], _nlri); \
|
|
})
|
|
|
|
#define NET_ADDR_FLOW6_(prefix,pxlen,nlri) \
|
|
({ \
|
|
uint _len = sizeof(nlri); \
|
|
net_addr_flow6 *_n = tmp_alloc(sizeof(net_addr_flow6) + _len); \
|
|
*_n = NET_ADDR_FLOW6(prefix, pxlen, _len); \
|
|
memcpy(_n->data, &(nlri), _len); \
|
|
if (_n->data[0] == 0) _n->data[0] = _len - 1; \
|
|
_n; \
|
|
})
|
|
|
|
#define NET_ADDR_FLOW6_NLRI(...) \
|
|
({ \
|
|
const byte _nlri[] = { __VA_ARGS__ }; \
|
|
NET_ADDR_FLOW6_(flow_read_ip6_part(_nlri + 1), _nlri[2], _nlri); \
|
|
})
|
|
|
|
static int
|
|
t_read_length(void)
|
|
{
|
|
byte data[] = { 0xcc, 0xcc, 0xcc };
|
|
|
|
for (uint expect = 0; expect < 0xf0; expect++)
|
|
{
|
|
*data = expect;
|
|
uint get = flow_read_length(data);
|
|
bt_assert_msg(get == expect, "Testing get length 0x%02x (get 0x%02x)", expect, get);
|
|
}
|
|
|
|
for (uint expect = 0; expect <= 0xfff; expect++)
|
|
{
|
|
put_u16(data, expect | 0xf000);
|
|
uint get = flow_read_length(data);
|
|
bt_assert_msg(get == expect, "Testing get length 0x%03x (get 0x%03x)", expect, get);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_write_length(void)
|
|
{
|
|
byte data[] = { 0xcc, 0xcc, 0xcc };
|
|
|
|
for (uint expect = 0; expect <= 0xfff; expect++)
|
|
{
|
|
uint offset = flow_write_length(data, expect);
|
|
|
|
uint set = (expect < 0xf0) ? *data : (get_u16(data) & 0x0fff);
|
|
bt_assert_msg(set == expect, "Testing set length 0x%03x (set 0x%03x)", expect, set);
|
|
bt_assert(offset == (expect < 0xf0 ? 1 : 2));
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_first_part(void)
|
|
{
|
|
net_addr_flow4 *f = NET_ADDR_FLOW4_(IP4_NONE, 0, ((byte[]) { 0x00, 0x00, 0xab }));
|
|
|
|
const byte *under240 = &f->data[1];
|
|
const byte *above240 = &f->data[2];
|
|
|
|
/* Case 0x00 0x00 */
|
|
f->data[0] = 0x00;
|
|
bt_assert(flow4_first_part(f) == NULL);
|
|
|
|
/* Case 0x01 0x00 */
|
|
f->data[0] = 0x01;
|
|
bt_assert(flow4_first_part(f) == under240);
|
|
|
|
/* Case 0xef 0x00 */
|
|
f->data[0] = 0xef;
|
|
bt_assert(flow4_first_part(f) == under240);
|
|
|
|
/* Case 0xf0 0x00 */
|
|
f->data[0] = 0xf0;
|
|
bt_assert(flow4_first_part(f) == NULL);
|
|
|
|
/* Case 0xf0 0x01 */
|
|
f->data[1] = 0x01;
|
|
bt_assert(flow4_first_part(f) == above240);
|
|
|
|
/* Case 0xff 0xff */
|
|
f->data[0] = 0xff;
|
|
f->data[1] = 0xff;
|
|
bt_assert(flow4_first_part(f) == above240);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_iterators4(void)
|
|
{
|
|
const net_addr_flow4 *f = NET_ADDR_FLOW4_NLRI(
|
|
25, /* Length */
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_SRC_PREFIX, 32, 10, 11, 12, 13,
|
|
FLOW_TYPE_IP_PROTOCOL, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_TCP_FLAGS, 0x80, 0x55,
|
|
);
|
|
|
|
const byte *start = f->data;
|
|
const byte *p1_dst_pfx = &f->data[1];
|
|
const byte *p2_src_pfx = &f->data[6];
|
|
const byte *p3_ip_proto = &f->data[12];
|
|
const byte *p4_port = &f->data[15];
|
|
const byte *p5_tcp_flags = &f->data[23];
|
|
const byte *end = &f->data[25];
|
|
|
|
bt_assert(flow_read_length(f->data) == (end-start));
|
|
bt_assert(flow4_first_part(f) == p1_dst_pfx);
|
|
|
|
bt_assert(flow4_next_part(p1_dst_pfx, end) == p2_src_pfx);
|
|
bt_assert(flow4_next_part(p2_src_pfx, end) == p3_ip_proto);
|
|
bt_assert(flow4_next_part(p3_ip_proto, end) == p4_port);
|
|
bt_assert(flow4_next_part(p4_port, end) == p5_tcp_flags);
|
|
bt_assert(flow4_next_part(p5_tcp_flags, end) == NULL);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_iterators6(void)
|
|
{
|
|
const net_addr_flow6 *f = NET_ADDR_FLOW6_NLRI(
|
|
26, /* Length */
|
|
FLOW_TYPE_DST_PREFIX, 0x68, 0x40, 0x12, 0x34, 0x56, 0x78, 0x9a,
|
|
FLOW_TYPE_SRC_PREFIX, 0x08, 0x0, 0xc0,
|
|
FLOW_TYPE_NEXT_HEADER, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_LABEL, 0x80, 0x55,
|
|
);
|
|
|
|
const byte *start = f->data;
|
|
const byte *p1_dst_pfx = &f->data[1];
|
|
const byte *p2_src_pfx = &f->data[9];
|
|
const byte *p3_next_header = &f->data[13];
|
|
const byte *p4_port = &f->data[16];
|
|
const byte *p5_label = &f->data[24];
|
|
const byte *end = &f->data[26];
|
|
|
|
bt_assert(flow_read_length(f->data) == (end-start));
|
|
bt_assert(flow6_first_part(f) == p1_dst_pfx);
|
|
|
|
bt_assert(flow6_next_part(p1_dst_pfx, end) == p2_src_pfx);
|
|
bt_assert(flow6_next_part(p2_src_pfx, end) == p3_next_header);
|
|
bt_assert(flow6_next_part(p3_next_header, end) == p4_port);
|
|
bt_assert(flow6_next_part(p4_port, end) == p5_label);
|
|
bt_assert(flow6_next_part(p5_label, end) == NULL);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_accessors4(void)
|
|
{
|
|
const net_addr_flow4 *f = NET_ADDR_FLOW4_NLRI(
|
|
25, /* Length */
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_SRC_PREFIX, 32, 10, 11, 12, 13,
|
|
FLOW_TYPE_IP_PROTOCOL, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_TCP_FLAGS, 0x80, 0x55,
|
|
);
|
|
|
|
const byte *p1_dst_px = &f->data[1];
|
|
const ip4_addr p1_dst_addr = ip4_build(5,6,7,0);
|
|
|
|
const byte *p2_src_px = &f->data[6];
|
|
const ip4_addr p2_src_addr = ip4_build(10,11,12,13);
|
|
|
|
bt_assert(ip4_equal(flow_read_ip4_part(p1_dst_px), p1_dst_addr));
|
|
bt_assert(ip4_equal(flow_read_ip4_part(p2_src_px), p2_src_addr));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_accessors6(void)
|
|
{
|
|
const net_addr_flow6 *f = NET_ADDR_FLOW6_NLRI(
|
|
26, /* Length */
|
|
FLOW_TYPE_DST_PREFIX, 0x68, 0x40, 0x12, 0x34, 0x56, 0x78, 0x9a,
|
|
FLOW_TYPE_SRC_PREFIX, 0x08, 0x0, 0xc0,
|
|
FLOW_TYPE_NEXT_HEADER, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_LABEL, 0x80, 0x55,
|
|
);
|
|
|
|
const byte *p1_dst_px = &f->data[1];
|
|
const ip6_addr p1_dst_addr = ip6_build(0,0,0x12345678,0x9a000000);
|
|
|
|
const byte *p2_src_px = &f->data[9];
|
|
const ip6_addr p2_src_addr = ip6_build(0xc0000000, 0, 0, 0);
|
|
|
|
bt_assert(ip6_equal(flow_read_ip6_part(p1_dst_px), p1_dst_addr));
|
|
bt_assert(ip6_equal(flow_read_ip6_part(p2_src_px), p2_src_addr));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_validation4(void)
|
|
{
|
|
enum flow_validated_state res;
|
|
|
|
byte nlri1[] = {
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_SRC_PREFIX, 32, 10, 11, 12, 13,
|
|
FLOW_TYPE_IP_PROTOCOL, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_TCP_FLAGS, 0x80, 0x55,
|
|
};
|
|
|
|
/* Empty NLRI */
|
|
res = flow4_validate(nlri1, 0);
|
|
bt_assert(res == FLOW_ST_VALID);
|
|
|
|
/* Valid / Not Complete testing */
|
|
uint valid_sizes[] = {5, 11, 14, 22, 25, 0};
|
|
uint valid_idx = 0;
|
|
for (uint size = 1; size <= sizeof(nlri1); size++)
|
|
{
|
|
res = flow4_validate(nlri1, size);
|
|
bt_debug("size %u, result: %s\n", size, flow_validated_state_str(res));
|
|
if (size == valid_sizes[valid_idx])
|
|
{
|
|
valid_idx++;
|
|
bt_assert(res == FLOW_ST_VALID);
|
|
}
|
|
else
|
|
{
|
|
bt_assert(res == FLOW_ST_NOT_COMPLETE);
|
|
}
|
|
}
|
|
|
|
/* Misc err tests */
|
|
|
|
struct tset {
|
|
enum flow_validated_state expect;
|
|
char *description;
|
|
u16 size;
|
|
byte *nlri;
|
|
};
|
|
|
|
#define TS(type, msg, data) ((struct tset) {type, msg, sizeof(data), (data)})
|
|
struct tset tset[] = {
|
|
TS(
|
|
FLOW_ST_EXCEED_MAX_PREFIX_LENGTH,
|
|
"33-length IPv4 prefix",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 33, 5, 6, 7, 8, 9
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_BAD_TYPE_ORDER,
|
|
"Bad flowspec component type order",
|
|
((byte []) {
|
|
FLOW_TYPE_SRC_PREFIX, 32, 10, 11, 12, 13,
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_BAD_TYPE_ORDER,
|
|
"Doubled destination prefix component",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_AND_BIT_SHOULD_BE_UNSET,
|
|
"The first numeric operator has set the AND bit",
|
|
((byte []) {
|
|
FLOW_TYPE_PORT, 0x43, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_ZERO_BIT_SHOULD_BE_UNSED,
|
|
"Set zero bit in operand to one",
|
|
((byte []) {
|
|
FLOW_TYPE_IP_PROTOCOL, 0x89, 0x06,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_UNKNOWN_COMPONENT,
|
|
"Unknown component of type number 13",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_TCP_FLAGS, 0x80, 0x55,
|
|
13 /*something new*/, 0x80, 0x55,
|
|
})
|
|
),
|
|
};
|
|
#undef TS
|
|
|
|
for (uint tcase = 0; tcase < ARRAY_SIZE(tset); tcase++)
|
|
{
|
|
res = flow4_validate(tset[tcase].nlri, tset[tcase].size);
|
|
bt_assert_msg(res == tset[tcase].expect, "Assertion (%s == %s) %s", flow_validated_state_str(res), flow_validated_state_str(tset[tcase].expect), tset[tcase].description);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_validation6(void)
|
|
{
|
|
enum flow_validated_state res;
|
|
|
|
byte nlri1[] = {
|
|
FLOW_TYPE_DST_PREFIX, 103, 61, 0x01, 0x12, 0x34, 0x56, 0x78, 0x98,
|
|
FLOW_TYPE_SRC_PREFIX, 8, 0, 0xc0,
|
|
FLOW_TYPE_NEXT_HEADER, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_LABEL, 0x80, 0x55,
|
|
};
|
|
|
|
/* Isn't included destination prefix */
|
|
res = flow6_validate(nlri1, 0);
|
|
bt_assert(res == FLOW_ST_VALID);
|
|
|
|
/* Valid / Not Complete testing */
|
|
uint valid_sizes[] = {0, 9, 13, 16, 24, 27, 0};
|
|
uint valid_idx = 0;
|
|
for (uint size = 0; size <= sizeof(nlri1); size++)
|
|
{
|
|
res = flow6_validate(nlri1, size);
|
|
bt_debug("size %u, result: %s\n", size, flow_validated_state_str(res));
|
|
if (size == valid_sizes[valid_idx])
|
|
{
|
|
valid_idx++;
|
|
bt_assert(res == FLOW_ST_VALID);
|
|
}
|
|
else
|
|
{
|
|
bt_assert(res == FLOW_ST_NOT_COMPLETE);
|
|
}
|
|
}
|
|
|
|
/* Misc err tests */
|
|
|
|
struct tset {
|
|
enum flow_validated_state expect;
|
|
char *description;
|
|
u16 size;
|
|
byte *nlri;
|
|
};
|
|
|
|
#define TS(type, msg, data) ((struct tset) {type, msg, sizeof(data), (data)})
|
|
struct tset tset[] = {
|
|
TS(
|
|
FLOW_ST_EXCEED_MAX_PREFIX_LENGTH,
|
|
"129-length IPv6 prefix",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 129, 64, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0x12
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_EXCEED_MAX_PREFIX_OFFSET,
|
|
"Prefix offset is higher than prefix length",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 48, 64, 0x40, 0x12, 0x34
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_BAD_TYPE_ORDER,
|
|
"Bad flowspec component type order",
|
|
((byte []) {
|
|
FLOW_TYPE_NEXT_HEADER, 0x81, 0x06,
|
|
FLOW_TYPE_SRC_PREFIX, 8, 0, 0xc0,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_BAD_TYPE_ORDER,
|
|
"Doubled destination prefix component",
|
|
((byte []) {
|
|
FLOW_TYPE_DST_PREFIX, 103, 61, 0x01, 0x12, 0x34, 0x56, 0x78, 0x98,
|
|
FLOW_TYPE_DST_PREFIX, 103, 61, 0x01, 0x12, 0x34, 0x56, 0x78, 0x98,
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_AND_BIT_SHOULD_BE_UNSET,
|
|
"The first numeric operator has set the AND bit",
|
|
((byte []) {
|
|
FLOW_TYPE_PORT, 0x43, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_ZERO_BIT_SHOULD_BE_UNSED,
|
|
"Set zero bit in operand to one",
|
|
((byte []) {
|
|
FLOW_TYPE_NEXT_HEADER, 0x89, 0x06
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_VALID,
|
|
"Component of type number 13 (Label) is well-known in IPv6",
|
|
((byte []) {
|
|
FLOW_TYPE_LABEL, 0x80, 0x55
|
|
})
|
|
),
|
|
TS(
|
|
FLOW_ST_UNKNOWN_COMPONENT,
|
|
"Unknown component of type number 14",
|
|
((byte []) {
|
|
FLOW_TYPE_LABEL, 0x80, 0x55,
|
|
14 /*something new*/, 0x80, 0x55,
|
|
})
|
|
)
|
|
};
|
|
#undef TS
|
|
|
|
for (uint tcase = 0; tcase < ARRAY_SIZE(tset); tcase++)
|
|
{
|
|
res = flow6_validate(tset[tcase].nlri, tset[tcase].size);
|
|
bt_assert_msg(res == tset[tcase].expect, "Assertion (%s == %s) %s", flow_validated_state_str(res), flow_validated_state_str(tset[tcase].expect), tset[tcase].description);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Builder tests
|
|
*/
|
|
|
|
static int
|
|
t_builder4(void)
|
|
{
|
|
struct flow_builder *fb = flow_builder_init(&root_pool);
|
|
|
|
/* Expectation */
|
|
|
|
const net_addr_flow4 *expect = NET_ADDR_FLOW4_NLRI(
|
|
0,
|
|
FLOW_TYPE_DST_PREFIX, 24, 5, 6, 7,
|
|
FLOW_TYPE_SRC_PREFIX, 32, 10, 11, 12, 13,
|
|
FLOW_TYPE_IP_PROTOCOL, 0x80, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_TCP_FLAGS, 0x80, 0x55,
|
|
);
|
|
|
|
/* Normal order */
|
|
|
|
net_addr_ip4 n1;
|
|
net_fill_ip4((net_addr *) &n1, ip4_build(5,6,7,0), 24);
|
|
flow_builder_set_type(fb, FLOW_TYPE_DST_PREFIX);
|
|
flow_builder4_add_pfx(fb, &n1);
|
|
|
|
net_addr_ip4 n2;
|
|
net_fill_ip4((net_addr *) &n2, ip4_build(10,11,12,13), 32);
|
|
flow_builder_set_type(fb, FLOW_TYPE_SRC_PREFIX);
|
|
flow_builder4_add_pfx(fb, &n2);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_IP_PROTOCOL);
|
|
flow_builder_add_op_val(fb, 0, 0x06);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_PORT);
|
|
flow_builder_add_op_val(fb, 0x03, 0x89);
|
|
flow_builder_add_op_val(fb, 0x45, 0x8b);
|
|
flow_builder_add_op_val(fb, 0x01, 0x1f90);
|
|
|
|
/* Try put a component twice time */
|
|
flow_builder_set_type(fb, FLOW_TYPE_IP_PROTOCOL);
|
|
flow_builder_add_op_val(fb, 0, 0x06);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_TCP_FLAGS);
|
|
flow_builder_add_op_val(fb, 0, 0x55);
|
|
|
|
net_addr_flow4 *res = flow_builder4_finalize(fb, tmp_linpool);
|
|
|
|
bt_assert(memcmp(res, expect, expect->length) == 0);
|
|
|
|
/* Reverse order */
|
|
|
|
flow_builder_clear(fb);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_TCP_FLAGS);
|
|
flow_builder_add_op_val(fb, 0, 0x55);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_PORT);
|
|
flow_builder_add_op_val(fb, 0x03, 0x89);
|
|
flow_builder_add_op_val(fb, 0x45, 0x8b);
|
|
flow_builder_add_op_val(fb, 0x01, 0x1f90);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_IP_PROTOCOL);
|
|
flow_builder_add_op_val(fb, 0, 0x06);
|
|
|
|
net_fill_ip4((net_addr *) &n2, ip4_build(10,11,12,13), 32);
|
|
flow_builder_set_type(fb, FLOW_TYPE_SRC_PREFIX);
|
|
flow_builder4_add_pfx(fb, &n2);
|
|
|
|
net_fill_ip4((net_addr *) &n1, ip4_build(5,6,7,0), 24);
|
|
flow_builder_set_type(fb, FLOW_TYPE_DST_PREFIX);
|
|
flow_builder4_add_pfx(fb, &n1);
|
|
|
|
bt_assert(memcmp(res, expect, expect->length) == 0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_builder6(void)
|
|
{
|
|
net_addr_ip6 ip;
|
|
|
|
struct flow_builder *fb = flow_builder_init(&root_pool);
|
|
fb->ipv6 = 1;
|
|
|
|
/* Expectation */
|
|
|
|
const net_addr_flow6 *expect = NET_ADDR_FLOW6_NLRI(
|
|
0,
|
|
FLOW_TYPE_DST_PREFIX, 103, 61, 0x22, 0x46, 0x8a, 0xcf, 0x13, 0x00,
|
|
FLOW_TYPE_SRC_PREFIX, 8, 0, 0xc0,
|
|
FLOW_TYPE_NEXT_HEADER, 0x80, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
FLOW_TYPE_LABEL, 0x80, 0x55,
|
|
);
|
|
|
|
/* Normal order */
|
|
|
|
net_fill_ip6((net_addr *) &ip, ip6_build(0, 1, 0x12345678, 0x98000000), 103);
|
|
flow_builder_set_type(fb, FLOW_TYPE_DST_PREFIX);
|
|
flow_builder6_add_pfx(fb, &ip, 61);
|
|
|
|
/* Try put a component twice time */
|
|
net_fill_ip6((net_addr *) &ip, ip6_build(0, 1, 0x12345678, 0x98000000), 103);
|
|
flow_builder_set_type(fb, FLOW_TYPE_DST_PREFIX);
|
|
bt_assert(flow_builder6_add_pfx(fb, &ip, 61) == 0);
|
|
|
|
net_fill_ip6((net_addr *) &ip, ip6_build(0xc0000000,0,0,0), 8);
|
|
flow_builder_set_type(fb, FLOW_TYPE_SRC_PREFIX);
|
|
flow_builder6_add_pfx(fb, &ip, 0);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_NEXT_HEADER);
|
|
flow_builder_add_op_val(fb, 0, 0x06);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_PORT);
|
|
flow_builder_add_op_val(fb, 0x03, 0x89);
|
|
flow_builder_add_op_val(fb, 0x45, 0x8b);
|
|
flow_builder_add_op_val(fb, 0x01, 0x1f90);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_LABEL);
|
|
flow_builder_add_op_val(fb, 0, 0x55);
|
|
|
|
net_addr_flow6 *res = flow_builder6_finalize(fb, tmp_linpool);
|
|
bt_assert(memcmp(res, expect, expect->length) == 0);
|
|
|
|
/* Reverse order */
|
|
|
|
flow_builder_clear(fb);
|
|
fb->ipv6 = 1;
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_LABEL);
|
|
flow_builder_add_op_val(fb, 0, 0x55);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_PORT);
|
|
flow_builder_add_op_val(fb, 0x03, 0x89);
|
|
flow_builder_add_op_val(fb, 0x45, 0x8b);
|
|
flow_builder_add_op_val(fb, 0x01, 0x1f90);
|
|
|
|
flow_builder_set_type(fb, FLOW_TYPE_NEXT_HEADER);
|
|
flow_builder_add_op_val(fb, 0, 0x06);
|
|
|
|
net_fill_ip6((net_addr *) &ip, ip6_build(0xc0000000,0,0,0), 8);
|
|
flow_builder_set_type(fb, FLOW_TYPE_SRC_PREFIX);
|
|
flow_builder6_add_pfx(fb, &ip, 0);
|
|
|
|
net_fill_ip6((net_addr *) &ip, ip6_build(0, 1, 0x12345678, 0x98000000), 103);
|
|
flow_builder_set_type(fb, FLOW_TYPE_DST_PREFIX);
|
|
flow_builder6_add_pfx(fb, &ip, 61);
|
|
|
|
res = flow_builder6_finalize(fb, tmp_linpool);
|
|
bt_assert(memcmp(res, expect, expect->length) == 0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_formatting4(void)
|
|
{
|
|
const net_addr_flow4 *input[4];
|
|
const char *expect[4];
|
|
|
|
expect[0] = "flow4 { dst 10.0.0.0/8; proto 23; dport > 24 && < 30 || 40..50,60..70,80 && >= 90; sport > 24 && < 30 || 40,50,60..70,80; icmp type 80; icmp code 90; tcp flags 0x3/0x3 && 0x0/0xc; length 0..65535; dscp 63; fragment dont_fragment || !is_fragment; }";
|
|
input[0] = NET_ADDR_FLOW4_NLRI(
|
|
0,
|
|
FLOW_TYPE_DST_PREFIX, 0x08, 10,
|
|
FLOW_TYPE_IP_PROTOCOL, 0x81, 23,
|
|
FLOW_TYPE_DST_PORT, 0x02, 24, 0x44, 30, 0x03, 40, 0x45, 50, 0x03, 60, 0x45, 70, 0x01, 80, 0xc3, 90,
|
|
FLOW_TYPE_SRC_PORT, 0x02, 24, 0x44, 0x1e, 0x01, 0x28, 0x01, 0x32, 0x03, 0x3c, 0x45, 0x46, 0x81, 0x50,
|
|
FLOW_TYPE_ICMP_TYPE, 0x81, 0x50,
|
|
FLOW_TYPE_ICMP_CODE, 0x81, 0x5a,
|
|
FLOW_TYPE_TCP_FLAGS, 0x01, 0x03, 0xc2, 0x0c,
|
|
FLOW_TYPE_PACKET_LENGTH, 0x03, 0, 0xd5, 0xff, 0xff,
|
|
FLOW_TYPE_DSCP, 0x81, 63,
|
|
FLOW_TYPE_FRAGMENT, 0x01, 0x01, 0x82, 0x02,
|
|
);
|
|
|
|
/* RFC 8955 4.3.1 Example 1 */
|
|
expect[1] = "flow4 { dst 192.0.2.0/24; proto 6; port 25; }";
|
|
input[1] = NET_ADDR_FLOW4_NLRI(
|
|
0x0b,
|
|
0x01, 0x18, 0xc0, 0x00, 0x02,
|
|
0x03, 0x81, 0x06,
|
|
0x04, 0x81, 0x19,
|
|
);
|
|
|
|
/* RFC 8955 4.3.2 Example 2 */
|
|
expect[2] = "flow4 { dst 192.0.2.0/24; src 203.0.113.0/24; port 137..139,8080; }";
|
|
input[2] = NET_ADDR_FLOW4_NLRI(
|
|
0x12,
|
|
0x01, 0x18, 0xc0, 0x00, 0x02,
|
|
0x02, 0x18, 0xcb, 0x00, 0x71,
|
|
0x04, 0x03, 0x89, 0x45, 0x8b, 0x91, 0x1f, 0x90,
|
|
);
|
|
|
|
/* RFC 8955 4.3.3 Example 3 */
|
|
expect[3] = "flow4 { dst 192.0.2.1/32; fragment !0x0/0x5; }";
|
|
input[3] = NET_ADDR_FLOW4_NLRI(
|
|
0x09,
|
|
0x01, 0x20, 0xc0, 0x00, 0x02, 0x01,
|
|
0x0c, 0x80, 0x05,
|
|
);
|
|
|
|
/* Run the tests */
|
|
for (uint i = 0; i < ARRAY_SIZE(input); i++)
|
|
{
|
|
char buf[1024];
|
|
uint len = flow4_net_format(buf, sizeof(buf), input[i]);
|
|
bt_debug(" expect: '%s',\n output: '%s'\n", expect[i], buf);
|
|
bt_assert(!strcmp(buf, expect[i]));
|
|
bt_assert(len == strlen(expect[i]));
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
t_formatting6(void)
|
|
{
|
|
const net_addr_flow6 *input[3];
|
|
const char *expect[3];
|
|
|
|
// (ip6_build(0, 1, 0x12345678, 0x98000000), 103, nlri0);
|
|
expect[0] = "flow6 { dst ::1:1234:5678:9800:0/103 offset 61; src c000::/8; next header 6; port 20..40,273; label < 500000; }";
|
|
input[0] = NET_ADDR_FLOW6_NLRI(
|
|
0,
|
|
FLOW_TYPE_DST_PREFIX, 103, 61, 0x22, 0x46, 0x8a, 0xcf, 0x13, 0x00,
|
|
FLOW_TYPE_SRC_PREFIX, 8, 0, 0xc0,
|
|
FLOW_TYPE_NEXT_HEADER, 0x81, 0x06,
|
|
FLOW_TYPE_PORT, 0x03, 20, 0x45, 40, 0x91, 0x01, 0x11,
|
|
FLOW_TYPE_LABEL, 0xa4, 0x00, 0x07, 0xa1, 0x20,
|
|
);
|
|
|
|
/* RFC 8956 3.8.1 Example 1 */
|
|
expect[1] = "flow6 { dst 2001:db8::/32; src ::1234:5678:9a00:0/104 offset 64; next header 6; }";
|
|
input[1] = NET_ADDR_FLOW6_(ip6_build(0x20010db8, 0, 0, 0), 32, ((const byte[]) {
|
|
0x12,
|
|
0x01, 0x20, 0x00, 0x20, 0x01, 0x0d, 0xb8,
|
|
0x02, 0x68, 0x40, 0x12, 0x34, 0x56, 0x78, 0x9a,
|
|
0x03, 0x81, 0x06,
|
|
}));
|
|
|
|
/* RFC 8956 3.8.2 Example 2 */
|
|
expect[2] = "flow6 { dst 2001:db8::/32; src ::1234:5678:9a00:0/104 offset 65; }";
|
|
input[2] = NET_ADDR_FLOW6_(ip6_build(0x20010db8, 0, 0, 0), 32, ((const byte[]) {
|
|
0x0f,
|
|
0x01, 0x20, 0x00, 0x20, 0x01, 0x0d, 0xb8,
|
|
0x02, 0x68, 0x41, 0x24, 0x68, 0xac, 0xf1, 0x34,
|
|
}));
|
|
|
|
/* Run the tests */
|
|
for (uint i = 0; i < ARRAY_SIZE(input); i++)
|
|
{
|
|
char buf[1024];
|
|
uint len = flow6_net_format(buf, sizeof(buf), input[i]);
|
|
bt_debug(" expect: '%s',\n output: '%s'\n", expect[i], buf);
|
|
bt_assert(!strcmp(buf, expect[i]));
|
|
bt_assert(len == strlen(expect[i]));
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
bt_init(argc, argv);
|
|
|
|
bt_test_suite(t_read_length, "Testing get NLRI length");
|
|
bt_test_suite(t_write_length, "Testing set NLRI length");
|
|
bt_test_suite(t_first_part, "Searching first part in net_addr_flow");
|
|
bt_test_suite(t_iterators4, "Testing iterators (IPv4)");
|
|
bt_test_suite(t_iterators6, "Testing iterators (IPv6)");
|
|
bt_test_suite(t_accessors4, "Testing accessors (IPv4)");
|
|
bt_test_suite(t_accessors6, "Testing accessors (IPv6)");
|
|
bt_test_suite(t_validation4, "Testing validation (IPv4)");
|
|
bt_test_suite(t_validation6, "Testing validation (IPv6)");
|
|
bt_test_suite(t_builder4, "Inserting components into existing Flow Specification (IPv4)");
|
|
bt_test_suite(t_builder6, "Inserting components into existing Flow Specification (IPv6)");
|
|
bt_test_suite(t_formatting4, "Formatting Flow Specification (IPv4) into text representation");
|
|
bt_test_suite(t_formatting6, "Formatting Flow Specification (IPv6) into text representation");
|
|
|
|
return bt_exit_value();
|
|
}
|