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|
/*
* Copyright (C) 2007 Sun Microsystems, Inc.
*
* This file is part of Quagga.
*
* Quagga is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* Quagga is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "qobj.h"
#include "vty.h"
#include "stream.h"
#include "privs.h"
#include "memory.h"
#include "queue.h"
#include "filter.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_open.h"
#include "bgpd/bgp_debug.h"
#include "bgpd/bgp_packet.h"
#define VT100_RESET "\x1b[0m"
#define VT100_RED "\x1b[31m"
#define VT100_GREEN "\x1b[32m"
#define VT100_YELLOW "\x1b[33m"
#define CAPABILITY 0
#define DYNCAP 1
#define OPT_PARAM 2
/* need these to link in libbgp */
struct zebra_privs_t *bgpd_privs = NULL;
struct thread_master *master = NULL;
static int failed = 0;
static int tty = 0;
/* test segments to parse and validate, and use for other tests */
static struct test_segment {
const char *name;
const char *desc;
const u_char data[1024];
int len;
#define SHOULD_PARSE 0
#define SHOULD_ERR -1
int parses; /* whether it should parse or not */
as_t peek_for; /* what peek_for_as4_capability should say */
/* AFI/SAFI validation */
int validate_afi;
afi_t afi;
safi_t safi;
#define VALID_AFI 1
#define INVALID_AFI 0
int afi_valid;
} test_segments[] = {
/* 0 */
{
"caphdr",
"capability header, and no more",
{CAPABILITY_CODE_REFRESH, 0x0},
2,
SHOULD_PARSE,
},
/* 1 */
{
"nodata",
"header, no data but length says there is",
{0x1, 0xa},
2,
SHOULD_ERR,
},
/* 2 */
{
"padded",
"valid, with padding",
{CAPABILITY_CODE_REFRESH, 0x2, 0x0, 0x0},
4,
SHOULD_PARSE,
},
/* 3 */
{
"minsize",
"violates minsize requirement",
{CAPABILITY_CODE_ORF, 0x2, 0x0, 0x0},
4,
SHOULD_ERR,
},
{NULL, NULL, {0}, 0, 0},
};
static struct test_segment mp_segments[] = {
{
"MP4",
"MP IP/Uni",
{0x1, 0x4, 0x0, 0x1, 0x0, 0x1},
6,
SHOULD_PARSE,
0,
1,
AFI_IP,
SAFI_UNICAST,
VALID_AFI,
},
{
"MPv6",
"MP IPv6/Uni",
{0x1, 0x4, 0x0, 0x2, 0x0, 0x1},
6,
SHOULD_PARSE,
0,
1,
AFI_IP6,
SAFI_UNICAST,
VALID_AFI,
},
/* 5 */
{
"MP2",
"MP IP/Multicast",
{CAPABILITY_CODE_MP, 0x4, 0x0, 0x1, 0x0, 0x2},
6,
SHOULD_PARSE,
0,
1,
AFI_IP,
SAFI_MULTICAST,
VALID_AFI,
},
/* 6 */
{
"MP3",
"MP IP6/MPLS-labeled VPN",
{CAPABILITY_CODE_MP, 0x4, 0x0, 0x2, 0x0, 0x80},
6,
SHOULD_PARSE,
0,
1,
AFI_IP6,
IANA_SAFI_MPLS_VPN,
VALID_AFI,
},
/* 7 */
{
"MP5",
"MP IP6/MPLS-VPN",
{CAPABILITY_CODE_MP, 0x4, 0x0, 0x2, 0x0, 0x4},
6,
SHOULD_PARSE,
0,
1,
AFI_IP6,
IANA_SAFI_MPLS_VPN,
VALID_AFI,
},
/* 8 */
{
"MP6",
"MP IP4/MPLS-labeled VPN",
{CAPABILITY_CODE_MP, 0x4, 0x0, 0x1, 0x0, 0x80},
6,
SHOULD_PARSE,
0,
1,
AFI_IP,
IANA_SAFI_MPLS_VPN,
VALID_AFI,
},
/* 10 */
{
"MP8",
"MP unknown AFI/SAFI",
{CAPABILITY_CODE_MP, 0x4, 0x0, 0xa, 0x0, 0x81},
6,
SHOULD_PARSE,
0,
1,
0xa,
0x81,
INVALID_AFI, /* parses, but unknown */
},
/* 11 */
{
"MP-short",
"MP IP4/Unicast, length too short (< minimum)",
{CAPABILITY_CODE_MP, 0x2, 0x0, 0x1, 0x0, 0x1},
6,
SHOULD_ERR,
},
/* 12 */
{
"MP-overflow",
"MP IP4/Unicast, length too long",
{CAPABILITY_CODE_MP, 0x6, 0x0, 0x1, 0x0, 0x1},
6,
SHOULD_ERR,
0,
1,
AFI_IP,
SAFI_UNICAST,
VALID_AFI,
},
{NULL, NULL, {0}, 0, 0}};
static struct test_segment misc_segments[] =
{
/* 13 */
{
"ORF",
"ORF, simple, single entry, single tuple",
{/* hdr */ CAPABILITY_CODE_ORF, 0x7,
/* mpc */ 0x0, 0x1, 0x0, 0x1,
/* num */ 0x1,
/* tuples */ 0x40, 0x3},
9,
SHOULD_PARSE,
},
/* 14 */
{
"ORF-many",
"ORF, multi entry/tuple",
{
/* hdr */ CAPABILITY_CODE_ORF,
0x21,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
ORF_MODE_BOTH,
0x80,
ORF_MODE_RECEIVE,
0x80,
ORF_MODE_SEND,
/* mpc */ 0x0,
0x2,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
ORF_MODE_BOTH,
0x80,
ORF_MODE_RECEIVE,
0x80,
ORF_MODE_SEND,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
ORF_MODE_RECEIVE,
0x80,
ORF_MODE_SEND,
0x80,
ORF_MODE_BOTH,
},
35,
SHOULD_PARSE,
},
/* 15 */
{
"ORFlo",
"ORF, multi entry/tuple, hdr length too short",
{
/* hdr */ CAPABILITY_CODE_ORF,
0x15,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
},
35,
SHOULD_ERR, /* It should error on invalid
Route-Refresh.. */
},
/* 16 */
{"ORFlu",
"ORF, multi entry/tuple, length too long",
{
/* hdr */ 0x3,
0x22,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
},
35,
SHOULD_ERR},
/* 17 */
{
"ORFnu",
"ORF, multi entry/tuple, entry number too long",
{
/* hdr */ 0x3,
0x21,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x1,
/* num */ 0x4,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
},
35,
SHOULD_PARSE, /* parses, but last few tuples should be
gibberish */
},
/* 18 */
{
"ORFno",
"ORF, multi entry/tuple, entry number too short",
{
/* hdr */ 0x3,
0x21,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x1,
/* num */ 0x1,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
},
35,
SHOULD_PARSE, /* Parses, but should get gibberish
afi/safis */
},
/* 17 */
{
"ORFpad",
"ORF, multi entry/tuple, padded to align",
{
/* hdr */ 0x3,
0x22,
/* mpc */ 0x0,
0x1,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x1,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
/* mpc */ 0x0,
0x2,
0x0,
0x2,
/* num */ 0x3,
/* tuples */ 0x40,
0x3,
0x80,
0x1,
0x80,
0x2,
0x00,
},
36,
SHOULD_PARSE,
},
/* 19 */
{
"AS4",
"AS4 capability",
{0x41, 0x4, 0xab, 0xcd, 0xef,
0x12}, /* AS: 2882400018 */
6,
SHOULD_PARSE,
2882400018,
},
{
"AS4",
"AS4 capability: short",
{0x41, 0x4, 0xab, 0xcd, 0xef}, /* AS: 2882400018 */
5,
SHOULD_ERR,
},
{
"AS4",
"AS4 capability: long",
{0x41, 0x4, 0xab, 0xcd, 0xef, 0x12, 0x12},
7,
SHOULD_ERR,
2882400018,
},
{
"GR",
"GR capability",
{
/* hdr */ CAPABILITY_CODE_RESTART, 0xe,
/* R-bit, time */ 0xf1, 0x12,
/* afi */ 0x0, 0x1,
/* safi */ 0x1,
/* flags */ 0xf,
/* afi */ 0x0, 0x2,
/* safi */ 0x1,
/* flags */ 0x0,
/* afi */ 0x0, 0x2,
/* safi */ 0x2,
/* flags */ 0x1,
},
16,
SHOULD_PARSE,
},
{
"GR-short",
"GR capability, but header length too short",
{
/* hdr */ 0x40, 0xa,
/* R-bit, time */ 0xf1, 0x12,
/* afi */ 0x0, 0x1,
/* safi */ 0x1,
/* flags */ 0xf,
/* afi */ 0x0, 0x2,
/* safi */ 0x1,
/* flags */ 0x0,
/* afi */ 0x0, 0x2,
/* safi */ 0x2,
/* flags */ 0x1,
},
15 /* array is 16 though */,
SHOULD_ERR,
},
{
"GR-long",
"GR capability, but header length too long",
{
/* hdr */ 0x40, 0xf,
/* R-bit, time */ 0xf1, 0x12,
/* afi */ 0x0, 0x1,
/* safi */ 0x1,
/* flags */ 0xf,
/* afi */ 0x0, 0x2,
/* safi */ 0x1,
/* flags */ 0x0,
/* afi */ 0x0, 0x2,
/* safi */ 0x2,
/* flags */ 0x01,
},
16,
SHOULD_ERR,
},
{
"GR-trunc",
"GR capability, but truncated",
{
/* hdr */ 0x40, 0xf,
/* R-bit, time */ 0xf1, 0x12,
/* afi */ 0x0, 0x1,
/* safi */ 0x1,
/* flags */ 0xf,
/* afi */ 0x0, 0x2,
/* safi */ 0x1,
/* flags */ 0x0,
/* afi */ 0x0, 0x2,
/* safi */ 0x2,
/* flags */ 0x1,
},
15,
SHOULD_ERR,
},
{
"GR-empty",
"GR capability, but empty.",
{
/* hdr */ 0x40, 0x0,
},
2,
SHOULD_ERR,
},
{
"MP-empty",
"MP capability, but empty.",
{
/* hdr */ 0x1, 0x0,
},
2,
SHOULD_ERR,
},
{
"ORF-empty",
"ORF capability, but empty.",
{
/* hdr */ 0x3, 0x0,
},
2,
SHOULD_ERR,
},
{
"AS4-empty",
"AS4 capability, but empty.",
{
/* hdr */ 0x41, 0x0,
},
2,
SHOULD_ERR,
},
{
"dyn-empty",
"Dynamic capability, but empty.",
{
/* hdr */ 0x42, 0x0,
},
2,
SHOULD_PARSE,
},
{
"dyn-old",
"Dynamic capability (deprecated version)",
{CAPABILITY_CODE_DYNAMIC, 0x0},
2,
SHOULD_PARSE,
},
{NULL, NULL, {0}, 0, 0}};
/* DYNAMIC message */
struct test_segment dynamic_cap_msgs[] = {
{
"DynCap",
"Dynamic Capability Message, IP/Multicast",
{0x0, 0x1, 0x4, 0x0, 0x1, 0x0, 0x2},
7,
SHOULD_PARSE, /* horrible alignment, just as with ORF */
},
{
"DynCapLong",
"Dynamic Capability Message, IP/Multicast, truncated",
{0x0, 0x1, 0x4, 0x0, 0x1, 0x0, 0x2},
5,
SHOULD_ERR,
},
{
"DynCapPadded",
"Dynamic Capability Message, IP/Multicast, padded",
{0x0, 0x1, 0x4, 0x0, 0x1, 0x0, 0x2, 0x0},
8,
SHOULD_ERR, /* No way to tell padding from data.. */
},
{
"DynCapMPCpadded",
"Dynamic Capability Message, IP/Multicast, cap data padded",
{0x0, 0x1, 0x5, 0x0, 0x1, 0x0, 0x2, 0x0},
8,
SHOULD_PARSE, /* You can though add padding to the capability
data */
},
{
"DynCapMPCoverflow",
"Dynamic Capability Message, IP/Multicast, cap data != length",
{0x0, 0x1, 0x3, 0x0, 0x1, 0x0, 0x2, 0x0},
8,
SHOULD_ERR,
},
{NULL, NULL, {0}, 0, 0}};
/* Entire Optional-Parameters block */
struct test_segment opt_params[] = {
{
"Cap-singlets",
"One capability per Optional-Param",
{
0x02, 0x06, 0x01, 0x04,
0x00, 0x01, 0x00, 0x01, /* MP IPv4/Uni */
0x02, 0x06, 0x01, 0x04,
0x00, 0x02, 0x00, 0x01, /* MP IPv6/Uni */
0x02, 0x02, 0x80, 0x00, /* RR (old) */
0x02, 0x02, 0x02, 0x00, /* RR */
},
24,
SHOULD_PARSE,
},
{
"Cap-series",
"Series of capability, one Optional-Param",
{
0x02, 0x10, 0x01, 0x04, 0x00, 0x01, 0x00,
0x01, /* MP IPv4/Uni */
0x01, 0x04, 0x00, 0x02, 0x00, 0x01, /* MP IPv6/Uni */
0x80, 0x00, /* RR (old) */
0x02, 0x00, /* RR */
},
18,
SHOULD_PARSE,
},
{
"AS4more",
"AS4 capability after other caps (singlets)",
{
0x02, 0x06, 0x01, 0x04,
0x00, 0x01, 0x00, 0x01, /* MP IPv4/Uni */
0x02, 0x06, 0x01, 0x04,
0x00, 0x02, 0x00, 0x01, /* MP IPv6/Uni */
0x02, 0x02, 0x80, 0x00, /* RR (old) */
0x02, 0x02, 0x02, 0x00, /* RR */
0x02, 0x06, 0x41, 0x04,
0x00, 0x03, 0x00, 0x06 /* AS4: 1996614 */
},
32,
SHOULD_PARSE,
196614,
},
{
"AS4series",
"AS4 capability, in series of capabilities",
{
0x02, 0x16, 0x01, 0x04, 0x00, 0x01,
0x00, 0x01, /* MP IPv4/Uni */
0x01, 0x04, 0x00, 0x02, 0x00, 0x01, /* MP IPv6/Uni */
0x80, 0x00, /* RR (old) */
0x02, 0x00, /* RR */
0x41, 0x04, 0x00, 0x03, 0x00, 0x06 /* AS4: 1996614 */
},
24,
SHOULD_PARSE,
196614,
},
{
"AS4real",
"AS4 capability, in series of capabilities",
{
0x02, 0x06, 0x01, 0x04,
0x00, 0x01, 0x00, 0x01, /* MP IPv4/uni */
0x02, 0x06, 0x01, 0x04,
0x00, 0x02, 0x00, 0x01, /* MP IPv6/uni */
0x02, 0x02, 0x80, 0x00, /* RR old */
0x02, 0x02, 0x02, 0x00, /* RR */
0x02, 0x06, 0x41, 0x04,
0x00, 0x03, 0x00, 0x06, /* AS4 */
},
32,
SHOULD_PARSE,
196614,
},
{
"AS4real2",
"AS4 capability, in series of capabilities",
{
0x02, 0x06, 0x01, 0x04, 0x00, 0x01, 0x00, 0x01, 0x02,
0x06, 0x01, 0x04, 0x00, 0x02, 0x00, 0x01, 0x02, 0x02,
0x80, 0x00, 0x02, 0x02, 0x02, 0x00, 0x02, 0x06, 0x41,
0x04, 0x00, 0x00, 0xfc, 0x03, 0x02, 0x09, 0x82, 0x07,
0x00, 0x01, 0x00, 0x01, 0x01, 0x80, 0x03, 0x02, 0x09,
0x03, 0x07, 0x00, 0x01, 0x00, 0x01, 0x01, 0x40, 0x03,
0x02, 0x02, 0x42, 0x00,
},
58,
SHOULD_PARSE,
64515,
},
{NULL, NULL, {0}, 0, 0}};
/* basic parsing test */
static void parse_test(struct peer *peer, struct test_segment *t, int type)
{
int ret;
int capability = 0;
as_t as4 = 0;
int oldfailed = failed;
int len = t->len;
#define RANDOM_FUZZ 35
stream_reset(peer->curr);
stream_put(peer->curr, NULL, RANDOM_FUZZ);
stream_set_getp(peer->curr, RANDOM_FUZZ);
switch (type) {
case CAPABILITY:
stream_putc(peer->curr, BGP_OPEN_OPT_CAP);
stream_putc(peer->curr, t->len);
break;
case DYNCAP:
/* for (i = 0; i < BGP_MARKER_SIZE; i++)
stream_putc (peer->, 0xff);
stream_putw (s, 0);
stream_putc (s, BGP_MSG_CAPABILITY);*/
break;
}
stream_write(peer->curr, t->data, t->len);
printf("%s: %s\n", t->name, t->desc);
switch (type) {
case CAPABILITY:
len += 2; /* to cover the OPT-Param header */
case OPT_PARAM:
printf("len: %u\n", len);
/* peek_for_as4 wants getp at capibility*/
as4 = peek_for_as4_capability(peer, len);
printf("peek_for_as4: as4 is %u\n", as4);
/* and it should leave getp as it found it */
assert(stream_get_getp(peer->curr) == RANDOM_FUZZ);
ret = bgp_open_option_parse(peer, len, &capability);
break;
case DYNCAP:
ret = bgp_capability_receive(peer, t->len);
break;
default:
printf("unknown type %u\n", type);
exit(1);
}
if (ret != BGP_Stop && t->validate_afi) {
afi_t afi;
safi_t safi;
/* Convert AFI, SAFI to internal values, check. */
if (bgp_map_afi_safi_iana2int(afi_int2iana(t->afi), t->safi,
&afi, &safi)) {
if (t->afi_valid == VALID_AFI)
failed++;
}
printf("MP: %u(%u)/%u(%u): recv %u, nego %u\n", t->afi, afi,
t->safi, safi, peer->afc_recv[afi][safi],
peer->afc_nego[afi][safi]);
if (t->afi_valid == VALID_AFI) {
if (!peer->afc_recv[afi][safi])
failed++;
if (!peer->afc_nego[afi][safi])
failed++;
}
}
if (as4 != t->peek_for) {
printf("as4 %u != %u\n", as4, t->peek_for);
failed++;
}
/*
* Some of the functions used return BGP_Stop on error and some return
* -1. If we have -1, keep it; if we have BGP_Stop, transform it to the
* correct pass/fail code
*/
if (ret != -1)
ret = (ret == BGP_Stop) ? -1 : 0;
printf("parsed?: %s\n", ret ? "no" : "yes");
if (ret != t->parses) {
printf("t->parses: %d\nret: %d\n", t->parses, ret);
failed++;
}
if (tty)
printf("%s",
(failed > oldfailed) ? VT100_RED "failed!" VT100_RESET
: VT100_GREEN "OK" VT100_RESET);
else
printf("%s", (failed > oldfailed) ? "failed!" : "OK");
if (failed)
printf(" (%u)", failed);
printf("\n\n");
}
static struct bgp *bgp;
static as_t asn = 100;
int main(void)
{
struct peer *peer;
int i, j;
conf_bgp_debug_neighbor_events = -1UL;
conf_bgp_debug_packet = -1UL;
conf_bgp_debug_as4 = -1UL;
term_bgp_debug_neighbor_events = -1UL;
term_bgp_debug_packet = -1UL;
term_bgp_debug_as4 = -1UL;
qobj_init();
master = thread_master_create(NULL);
bgp_master_init(master);
vrf_init(NULL, NULL, NULL, NULL);
bgp_option_set(BGP_OPT_NO_LISTEN);
if (fileno(stdout) >= 0)
tty = isatty(fileno(stdout));
if (bgp_get(&bgp, &asn, NULL, BGP_INSTANCE_TYPE_DEFAULT))
return -1;
peer = peer_create_accept(bgp);
peer->host = (char *)"foo";
for (i = AFI_IP; i < AFI_MAX; i++)
for (j = SAFI_UNICAST; j < SAFI_MAX; j++) {
peer->afc[i][j] = 1;
peer->afc_adv[i][j] = 1;
}
peer->curr = stream_new(BGP_MAX_PACKET_SIZE);
i = 0;
while (mp_segments[i].name)
parse_test(peer, &mp_segments[i++], CAPABILITY);
/* These tests assume mp_segments tests set at least
* one of the afc_nego's
*/
i = 0;
while (test_segments[i].name)
parse_test(peer, &test_segments[i++], CAPABILITY);
i = 0;
while (misc_segments[i].name)
parse_test(peer, &misc_segments[i++], CAPABILITY);
i = 0;
while (opt_params[i].name)
parse_test(peer, &opt_params[i++], OPT_PARAM);
SET_FLAG(peer->cap, PEER_CAP_DYNAMIC_ADV);
peer->status = Established;
i = 0;
while (dynamic_cap_msgs[i].name)
parse_test(peer, &dynamic_cap_msgs[i++], DYNCAP);
printf("failures: %d\n", failed);
return failed;
}
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