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test_peer_attr.c
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test_peer_attr.c
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/*
* BGP Peer Attribute Unit Tests
* Copyright (C) 2018 Pascal Mathis
*
* This program 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 of the License, or (at your option)
* any later version.
*
* This program 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 "memory.h"
#include "plist.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_attr.h"
#include "bgpd/bgp_regex.h"
#include "bgpd/bgp_clist.h"
#include "bgpd/bgp_dump.h"
#include "bgpd/bgp_filter.h"
#include "bgpd/bgp_route.h"
#include "bgpd/bgp_vty.h"
#include "bgpd/bgp_zebra.h"
#include "bgpd/bgp_network.h"
#include "lib/routing_nb.h"
#include "bgpd/bgp_nb.h"
#ifdef ENABLE_BGP_VNC
#include "bgpd/rfapi/rfapi_backend.h"
#endif
#define OUT_SYMBOL_INFO "\u25ba"
#define OUT_SYMBOL_OK "\u2714"
#define OUT_SYMBOL_NOK "\u2716"
#define TEST_ASSERT(T, C) \
do { \
if ((T)->state != TEST_SUCCESS || (C)) \
break; \
(T)->state = TEST_ASSERT_ERROR; \
(T)->error = str_printf("assertion failed: %s (%s:%d)", (#C), \
__FILE__, __LINE__); \
} while (0)
#define TEST_ASSERT_EQ(T, A, B) \
do { \
if ((T)->state != TEST_SUCCESS || ((A) == (B))) \
break; \
(T)->state = TEST_ASSERT_ERROR; \
(T)->error = str_printf( \
"assertion failed: %s[%d] == [%d]%s (%s:%d)", (#A), \
(A), (B), (#B), __FILE__, __LINE__); \
} while (0)
#define TEST_HANDLER_MAX 5
#define TEST_HANDLER(name) _test_handler_##name
#define TEST_HANDLER_DECL(name) \
static void _test_handler_##name( \
struct test *test, struct test_peer_attr *pa, \
struct peer *peer, struct peer *group, bool peer_set, \
bool group_set)
#define TEST_ATTR_HANDLER_DECL(name, attr, pval, gval) \
TEST_HANDLER_DECL(name) \
{ \
if (peer_set) \
TEST_ASSERT_EQ(test, peer->attr, (pval)); \
else if (peer_group_active(peer) && group_set) \
TEST_ASSERT_EQ(test, peer->attr, (gval)); \
if (group_set) \
TEST_ASSERT_EQ(test, group->attr, (gval)); \
} \
TEST_HANDLER_DECL(name)
#define TEST_STR_ATTR_HANDLER_DECL(name, attr, pval, gval) \
TEST_HANDLER_DECL(name) \
{ \
if (peer_set) { \
TEST_ASSERT(test, peer->attr != NULL); \
TEST_ASSERT(test, !strcmp(peer->attr, (pval))); \
} else if (peer_group_active(peer) && group_set) { \
TEST_ASSERT(test, peer->attr != NULL); \
TEST_ASSERT(test, !strcmp(peer->attr, (gval))); \
} \
if (group_set) { \
TEST_ASSERT(test, group->attr != NULL); \
TEST_ASSERT(test, !strcmp(group->attr, (gval))); \
} \
} \
TEST_HANDLER_DECL(name)
#define TEST_SU_ATTR_HANDLER_DECL(name, attr, pval, gval) \
TEST_HANDLER_DECL(name) \
{ \
union sockunion su; \
if (peer_set) { \
str2sockunion(pval, &su); \
TEST_ASSERT(test, !sockunion_cmp(peer->attr, &su)); \
} else if (peer_group_active(peer) && group_set) { \
str2sockunion(gval, &su); \
TEST_ASSERT(test, !sockunion_cmp(group->attr, &su)); \
} \
if (group_set) { \
str2sockunion(gval, &su); \
TEST_ASSERT(test, !sockunion_cmp(group->attr, &su)); \
} \
} \
TEST_HANDLER_DECL(name)
/* Required variables to link in libbgp */
struct zebra_privs_t bgpd_privs = {0};
struct thread_master *master;
enum test_state {
TEST_SUCCESS,
TEST_SKIPPING,
TEST_COMMAND_ERROR,
TEST_CONFIG_ERROR,
TEST_ASSERT_ERROR,
TEST_CUSTOM_ERROR,
TEST_INTERNAL_ERROR,
};
enum test_peer_attr_type {
PEER_AT_AF_FLAG = 0,
PEER_AT_AF_FILTER = 1,
PEER_AT_AF_CUSTOM = 2,
PEER_AT_GLOBAL_FLAG = 3,
PEER_AT_GLOBAL_CUSTOM = 4
};
struct test {
enum test_state state;
char *desc;
char *error;
struct list *log;
struct vty *vty;
struct bgp *bgp;
struct peer *peer;
struct peer_group *group;
struct {
bool use_ibgp;
bool use_iface_peer;
} o;
};
struct test_config {
int local_asn;
int peer_asn;
const char *peer_address;
const char *peer_interface;
const char *peer_group;
};
struct test_peer_family {
afi_t afi;
safi_t safi;
};
struct test_peer_attr {
const char *cmd;
const char *peer_cmd;
const char *group_cmd;
enum test_peer_attr_type type;
union {
uint32_t flag;
struct {
uint32_t flag;
size_t direct;
} filter;
} u;
struct {
bool invert_peer;
bool invert_group;
bool use_ibgp;
bool use_iface_peer;
bool skip_xfer_cases;
} o;
afi_t afi;
safi_t safi;
struct test_peer_family families[AFI_MAX * SAFI_MAX];
void (*handlers[TEST_HANDLER_MAX])(struct test *test,
struct test_peer_attr *pa,
struct peer *peer,
struct peer *group, bool peer_set,
bool group_set);
};
static struct test_config cfg = {
.local_asn = 100,
.peer_asn = 200,
.peer_address = "1.1.1.1",
.peer_interface = "IP-TEST",
.peer_group = "PG-TEST",
};
static struct test_peer_family test_default_families[] = {
{.afi = AFI_IP, .safi = SAFI_UNICAST},
{.afi = AFI_IP, .safi = SAFI_MULTICAST},
{.afi = AFI_IP6, .safi = SAFI_UNICAST},
{.afi = AFI_IP6, .safi = SAFI_MULTICAST},
};
static char *str_vprintf(const char *fmt, va_list ap)
{
int ret;
int buf_size = 0;
char *buf = NULL;
va_list apc;
while (1) {
va_copy(apc, ap);
ret = vsnprintf(buf, buf_size, fmt, apc);
va_end(apc);
if (ret >= 0 && ret < buf_size)
break;
if (ret >= 0)
buf_size = ret + 1;
else
buf_size *= 2;
buf = XREALLOC(MTYPE_TMP, buf, buf_size);
}
return buf;
}
static char *str_printf(const char *fmt, ...)
{
char *buf;
va_list ap;
va_start(ap, fmt);
buf = str_vprintf(fmt, ap);
va_end(ap);
return buf;
}
TEST_ATTR_HANDLER_DECL(advertisement_interval, v_routeadv, 10, 20);
TEST_STR_ATTR_HANDLER_DECL(password, password, "FRR-Peer", "FRR-Group");
TEST_ATTR_HANDLER_DECL(local_as, change_local_as, 1, 2);
TEST_ATTR_HANDLER_DECL(timers_1, keepalive, 10, 20);
TEST_ATTR_HANDLER_DECL(timers_2, holdtime, 30, 60);
TEST_ATTR_HANDLER_DECL(addpath_types, addpath_type[pa->afi][pa->safi],
BGP_ADDPATH_ALL, BGP_ADDPATH_BEST_PER_AS);
TEST_SU_ATTR_HANDLER_DECL(update_source_su, update_source, "255.255.255.1",
"255.255.255.2");
TEST_STR_ATTR_HANDLER_DECL(update_source_if, update_if, "IF-PEER", "IF-GROUP");
TEST_ATTR_HANDLER_DECL(allowas_in, allowas_in[pa->afi][pa->safi], 1, 2);
TEST_STR_ATTR_HANDLER_DECL(default_originate_route_map,
default_rmap[pa->afi][pa->safi].name, "RM-PEER",
"RM-GROUP");
TEST_STR_ATTR_HANDLER_DECL(
distribute_list,
filter[pa->afi][pa->safi].dlist[pa->u.filter.direct].name, "DL-PEER",
"DL-GROUP");
TEST_STR_ATTR_HANDLER_DECL(
filter_list, filter[pa->afi][pa->safi].aslist[pa->u.filter.direct].name,
"FL-PEER", "FL-GROUP");
TEST_ATTR_HANDLER_DECL(maximum_prefix, pmax[pa->afi][pa->safi], 10, 20);
TEST_ATTR_HANDLER_DECL(maximum_prefix_threshold,
pmax_threshold[pa->afi][pa->safi], 1, 2);
TEST_ATTR_HANDLER_DECL(maximum_prefix_restart, pmax_restart[pa->afi][pa->safi],
100, 200);
TEST_STR_ATTR_HANDLER_DECL(
prefix_list, filter[pa->afi][pa->safi].plist[pa->u.filter.direct].name,
"PL-PEER", "PL-GROUP");
TEST_STR_ATTR_HANDLER_DECL(
route_map, filter[pa->afi][pa->safi].map[pa->u.filter.direct].name,
"RM-PEER", "RM-GROUP");
TEST_STR_ATTR_HANDLER_DECL(unsuppress_map, filter[pa->afi][pa->safi].usmap.name,
"UM-PEER", "UM-GROUP");
TEST_ATTR_HANDLER_DECL(weight, weight[pa->afi][pa->safi], 100, 200);
/* clang-format off */
static struct test_peer_attr test_peer_attrs[] = {
/* Peer Attributes */
{
.cmd = "advertisement-interval",
.peer_cmd = "advertisement-interval 10",
.group_cmd = "advertisement-interval 20",
.u.flag = PEER_FLAG_ROUTEADV,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(advertisement_interval),
},
{
.cmd = "capability dynamic",
.u.flag = PEER_FLAG_DYNAMIC_CAPABILITY,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "capability extended-nexthop",
.u.flag = PEER_FLAG_CAPABILITY_ENHE,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "capability extended-nexthop",
.u.flag = PEER_FLAG_CAPABILITY_ENHE,
.type = PEER_AT_GLOBAL_FLAG,
.o.invert_peer = true,
.o.use_iface_peer = true,
},
{
.cmd = "description",
.peer_cmd = "description FRR Peer",
.group_cmd = "description FRR Group",
.type = PEER_AT_GLOBAL_CUSTOM,
},
{
.cmd = "disable-connected-check",
.u.flag = PEER_FLAG_DISABLE_CONNECTED_CHECK,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "dont-capability-negotiate",
.u.flag = PEER_FLAG_DONT_CAPABILITY,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "enforce-first-as",
.u.flag = PEER_FLAG_ENFORCE_FIRST_AS,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "local-as",
.peer_cmd = "local-as 1",
.group_cmd = "local-as 2",
.u.flag = PEER_FLAG_LOCAL_AS,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(local_as),
},
{
.cmd = "local-as 1 no-prepend",
.u.flag = PEER_FLAG_LOCAL_AS | PEER_FLAG_LOCAL_AS_NO_PREPEND,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "local-as 1 no-prepend replace-as",
.u.flag = PEER_FLAG_LOCAL_AS | PEER_FLAG_LOCAL_AS_REPLACE_AS,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "override-capability",
.u.flag = PEER_FLAG_OVERRIDE_CAPABILITY,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "passive",
.u.flag = PEER_FLAG_PASSIVE,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "password",
.peer_cmd = "password FRR-Peer",
.group_cmd = "password FRR-Group",
.u.flag = PEER_FLAG_PASSWORD,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(password),
},
{
.cmd = "shutdown",
.u.flag = PEER_FLAG_SHUTDOWN,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "strict-capability-match",
.u.flag = PEER_FLAG_STRICT_CAP_MATCH,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "timers",
.peer_cmd = "timers 10 30",
.group_cmd = "timers 20 60",
.u.flag = PEER_FLAG_TIMER,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(timers_1),
.handlers[1] = TEST_HANDLER(timers_2),
},
{
.cmd = "timers connect",
.peer_cmd = "timers connect 10",
.group_cmd = "timers connect 20",
.u.flag = PEER_FLAG_TIMER_CONNECT,
.type = PEER_AT_GLOBAL_FLAG,
},
{
.cmd = "update-source",
.peer_cmd = "update-source 255.255.255.1",
.group_cmd = "update-source 255.255.255.2",
.u.flag = PEER_FLAG_UPDATE_SOURCE,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(update_source_su),
},
{
.cmd = "update-source",
.peer_cmd = "update-source IF-PEER",
.group_cmd = "update-source IF-GROUP",
.u.flag = PEER_FLAG_UPDATE_SOURCE,
.type = PEER_AT_GLOBAL_FLAG,
.handlers[0] = TEST_HANDLER(update_source_if),
},
/* Address Family Attributes */
{
.cmd = "addpath",
.peer_cmd = "addpath-tx-all-paths",
.group_cmd = "addpath-tx-bestpath-per-AS",
.type = PEER_AT_AF_CUSTOM,
.handlers[0] = TEST_HANDLER(addpath_types),
},
{
.cmd = "allowas-in",
.peer_cmd = "allowas-in 1",
.group_cmd = "allowas-in 2",
.u.flag = PEER_FLAG_ALLOWAS_IN,
.handlers[0] = TEST_HANDLER(allowas_in),
},
{
.cmd = "allowas-in origin",
.u.flag = PEER_FLAG_ALLOWAS_IN_ORIGIN,
},
{
.cmd = "as-override",
.u.flag = PEER_FLAG_AS_OVERRIDE,
},
{
.cmd = "attribute-unchanged as-path",
.u.flag = PEER_FLAG_AS_PATH_UNCHANGED,
},
{
.cmd = "attribute-unchanged next-hop",
.u.flag = PEER_FLAG_NEXTHOP_UNCHANGED,
},
{
.cmd = "attribute-unchanged med",
.u.flag = PEER_FLAG_MED_UNCHANGED,
},
{
.cmd = "attribute-unchanged as-path next-hop",
.u.flag = PEER_FLAG_AS_PATH_UNCHANGED
| PEER_FLAG_NEXTHOP_UNCHANGED,
},
{
.cmd = "attribute-unchanged as-path med",
.u.flag = PEER_FLAG_AS_PATH_UNCHANGED
| PEER_FLAG_MED_UNCHANGED,
},
{
.cmd = "attribute-unchanged as-path next-hop med",
.u.flag = PEER_FLAG_AS_PATH_UNCHANGED
| PEER_FLAG_NEXTHOP_UNCHANGED
| PEER_FLAG_MED_UNCHANGED,
},
{
.cmd = "capability orf prefix-list send",
.u.flag = PEER_FLAG_ORF_PREFIX_SM,
},
{
.cmd = "capability orf prefix-list receive",
.u.flag = PEER_FLAG_ORF_PREFIX_RM,
},
{
.cmd = "capability orf prefix-list both",
.u.flag = PEER_FLAG_ORF_PREFIX_SM | PEER_FLAG_ORF_PREFIX_RM,
},
{
.cmd = "default-originate",
.u.flag = PEER_FLAG_DEFAULT_ORIGINATE,
},
{
.cmd = "default-originate route-map",
.peer_cmd = "default-originate route-map RM-PEER",
.group_cmd = "default-originate route-map RM-GROUP",
.u.flag = PEER_FLAG_DEFAULT_ORIGINATE,
.handlers[0] = TEST_HANDLER(default_originate_route_map),
},
{
.cmd = "distribute-list",
.peer_cmd = "distribute-list DL-PEER in",
.group_cmd = "distribute-list DL-GROUP in",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_DISTRIBUTE_LIST,
.u.filter.direct = FILTER_IN,
.handlers[0] = TEST_HANDLER(distribute_list),
},
{
.cmd = "distribute-list",
.peer_cmd = "distribute-list DL-PEER out",
.group_cmd = "distribute-list DL-GROUP out",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_DISTRIBUTE_LIST,
.u.filter.direct = FILTER_OUT,
.handlers[0] = TEST_HANDLER(distribute_list),
},
{
.cmd = "filter-list",
.peer_cmd = "filter-list FL-PEER in",
.group_cmd = "filter-list FL-GROUP in",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_FILTER_LIST,
.u.filter.direct = FILTER_IN,
.handlers[0] = TEST_HANDLER(filter_list),
},
{
.cmd = "filter-list",
.peer_cmd = "filter-list FL-PEER out",
.group_cmd = "filter-list FL-GROUP out",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_FILTER_LIST,
.u.filter.direct = FILTER_OUT,
.handlers[0] = TEST_HANDLER(filter_list),
},
{
.cmd = "maximum-prefix",
.peer_cmd = "maximum-prefix 10",
.group_cmd = "maximum-prefix 20",
.u.flag = PEER_FLAG_MAX_PREFIX,
.handlers[0] = TEST_HANDLER(maximum_prefix),
},
{
.cmd = "maximum-prefix",
.peer_cmd = "maximum-prefix 10 restart 100",
.group_cmd = "maximum-prefix 20 restart 200",
.u.flag = PEER_FLAG_MAX_PREFIX,
.handlers[0] = TEST_HANDLER(maximum_prefix),
.handlers[1] = TEST_HANDLER(maximum_prefix_restart),
},
{
.cmd = "maximum-prefix",
.peer_cmd = "maximum-prefix 10 1 restart 100",
.group_cmd = "maximum-prefix 20 2 restart 200",
.u.flag = PEER_FLAG_MAX_PREFIX,
.handlers[0] = TEST_HANDLER(maximum_prefix),
.handlers[1] = TEST_HANDLER(maximum_prefix_threshold),
.handlers[2] = TEST_HANDLER(maximum_prefix_restart),
},
{
.cmd = "maximum-prefix",
.peer_cmd = "maximum-prefix 10 warning-only",
.group_cmd = "maximum-prefix 20 warning-only",
.u.flag = PEER_FLAG_MAX_PREFIX | PEER_FLAG_MAX_PREFIX_WARNING,
.handlers[0] = TEST_HANDLER(maximum_prefix),
},
{
.cmd = "maximum-prefix",
.peer_cmd = "maximum-prefix 10 1 warning-only",
.group_cmd = "maximum-prefix 20 2 warning-only",
.u.flag = PEER_FLAG_MAX_PREFIX | PEER_FLAG_MAX_PREFIX_WARNING,
.handlers[0] = TEST_HANDLER(maximum_prefix),
.handlers[1] = TEST_HANDLER(maximum_prefix_threshold),
},
{
.cmd = "next-hop-self",
.u.flag = PEER_FLAG_NEXTHOP_SELF,
},
{
.cmd = "next-hop-self force",
.u.flag = PEER_FLAG_FORCE_NEXTHOP_SELF,
},
{
.cmd = "prefix-list",
.peer_cmd = "prefix-list PL-PEER in",
.group_cmd = "prefix-list PL-GROUP in",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_PREFIX_LIST,
.u.filter.direct = FILTER_IN,
.handlers[0] = TEST_HANDLER(prefix_list),
},
{
.cmd = "prefix-list",
.peer_cmd = "prefix-list PL-PEER out",
.group_cmd = "prefix-list PL-GROUP out",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_PREFIX_LIST,
.u.filter.direct = FILTER_OUT,
.handlers[0] = TEST_HANDLER(prefix_list),
},
{
.cmd = "remove-private-AS",
.u.flag = PEER_FLAG_REMOVE_PRIVATE_AS,
},
{
.cmd = "remove-private-AS all",
.u.flag = PEER_FLAG_REMOVE_PRIVATE_AS
| PEER_FLAG_REMOVE_PRIVATE_AS_ALL,
},
{
.cmd = "remove-private-AS replace-AS",
.u.flag = PEER_FLAG_REMOVE_PRIVATE_AS
| PEER_FLAG_REMOVE_PRIVATE_AS_REPLACE,
},
{
.cmd = "remove-private-AS all replace-AS",
.u.flag = PEER_FLAG_REMOVE_PRIVATE_AS_ALL_REPLACE,
},
{
.cmd = "route-map",
.peer_cmd = "route-map RM-PEER in",
.group_cmd = "route-map RM-GROUP in",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_ROUTE_MAP,
.u.filter.direct = FILTER_IN,
.handlers[0] = TEST_HANDLER(route_map),
},
{
.cmd = "route-map",
.peer_cmd = "route-map RM-PEER out",
.group_cmd = "route-map RM-GROUP out",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_ROUTE_MAP,
.u.filter.direct = FILTER_OUT,
.handlers[0] = TEST_HANDLER(route_map),
},
{
.cmd = "route-reflector-client",
.u.flag = PEER_FLAG_REFLECTOR_CLIENT,
.o.use_ibgp = true,
.o.skip_xfer_cases = true,
},
{
.cmd = "route-server-client",
.u.flag = PEER_FLAG_RSERVER_CLIENT,
},
{
.cmd = "send-community",
.u.flag = PEER_FLAG_SEND_COMMUNITY,
.o.invert_peer = true,
.o.invert_group = true,
},
{
.cmd = "send-community extended",
.u.flag = PEER_FLAG_SEND_EXT_COMMUNITY,
.o.invert_peer = true,
.o.invert_group = true,
},
{
.cmd = "send-community large",
.u.flag = PEER_FLAG_SEND_LARGE_COMMUNITY,
.o.invert_peer = true,
.o.invert_group = true,
},
{
.cmd = "soft-reconfiguration inbound",
.u.flag = PEER_FLAG_SOFT_RECONFIG,
},
{
.cmd = "unsuppress-map",
.peer_cmd = "unsuppress-map UM-PEER",
.group_cmd = "unsuppress-map UM-GROUP",
.type = PEER_AT_AF_FILTER,
.u.filter.flag = PEER_FT_UNSUPPRESS_MAP,
.u.filter.direct = 0,
.handlers[0] = TEST_HANDLER(unsuppress_map),
},
{
.cmd = "weight",
.peer_cmd = "weight 100",
.group_cmd = "weight 200",
.u.flag = PEER_FLAG_WEIGHT,
.handlers[0] = TEST_HANDLER(weight),
},
{NULL}
};
/* clang-format on */
static const char *str_from_afi(afi_t afi)
{
switch (afi) {
case AFI_IP:
return "ipv4";
case AFI_IP6:
return "ipv6";
default:
return "<unknown AFI>";
}
}
static const char *str_from_safi(safi_t safi)
{
switch (safi) {
case SAFI_UNICAST:
return "unicast";
case SAFI_MULTICAST:
return "multicast";
default:
return "<unknown SAFI>";
}
}
static const char *str_from_attr_type(enum test_peer_attr_type at)
{
switch (at) {
case PEER_AT_GLOBAL_FLAG:
return "peer-flag";
case PEER_AT_AF_FLAG:
return "af-flag";
case PEER_AT_AF_FILTER:
return "af-filter";
case PEER_AT_GLOBAL_CUSTOM:
case PEER_AT_AF_CUSTOM:
return "custom";
default:
return NULL;
}
}
static bool is_attr_type_global(enum test_peer_attr_type at)
{
return at == PEER_AT_GLOBAL_FLAG || at == PEER_AT_GLOBAL_CUSTOM;
}
static void test_log(struct test *test, const char *fmt, ...)
{
va_list ap;
/* Skip logging if test instance has previously failed. */
if (test->state != TEST_SUCCESS)
return;
/* Store formatted log message. */
va_start(ap, fmt);
listnode_add(test->log, str_vprintf(fmt, ap));
va_end(ap);
}
static void test_execute(struct test *test, const char *fmt, ...)
{
int ret;
char *cmd;
va_list ap;
vector vline;
/* Skip execution if test instance has previously failed. */
if (test->state != TEST_SUCCESS)
return;
/* Format command string with variadic arguments. */
va_start(ap, fmt);
cmd = str_vprintf(fmt, ap);
va_end(ap);
if (!cmd) {
test->state = TEST_INTERNAL_ERROR;
test->error =
str_printf("could not format command string [%s]", fmt);
return;
}
/* Tokenize formatted command string. */
vline = cmd_make_strvec(cmd);
if (vline == NULL) {
test->state = TEST_INTERNAL_ERROR;
test->error = str_printf(
"tokenizing command string [%s] returned empty result",
cmd);
XFREE(MTYPE_TMP, cmd);
return;
}
/* Execute command (non-strict). */
ret = cmd_execute_command(vline, test->vty, NULL, 0);
if (ret != CMD_SUCCESS) {
test->state = TEST_COMMAND_ERROR;
test->error = str_printf(
"execution of command [%s] has failed with code [%d]",
cmd, ret);
}
nb_cli_pending_commit_check(test->vty);
/* Free memory. */
cmd_free_strvec(vline);
XFREE(MTYPE_TMP, cmd);
}
static void test_config(struct test *test, const char *fmt, bool invert,
va_list ap)
{
char *matcher;
char *config;
bool matched;
va_list apc;
/* Skip execution if test instance has previously failed. */
if (test->state != TEST_SUCCESS)
return;
/* Format matcher string with variadic arguments. */
va_copy(apc, ap);
matcher = str_vprintf(fmt, apc);
va_end(apc);
if (!matcher) {
test->state = TEST_INTERNAL_ERROR;
test->error =
str_printf("could not format matcher string [%s]", fmt);
return;
}
/* Fetch BGP configuration into buffer. */
bgp_config_write(test->vty);
config = buffer_getstr(test->vty->obuf);
buffer_reset(test->vty->obuf);
/* Match config against matcher. */
matched = !!strstr(config, matcher);
if (!matched && !invert) {
test->state = TEST_CONFIG_ERROR;
test->error = str_printf("expected config [%s] to be present",
matcher);
} else if (matched && invert) {
test->state = TEST_CONFIG_ERROR;
test->error = str_printf("expected config [%s] to be absent",
matcher);
}
/* Free memory and return. */
XFREE(MTYPE_TMP, matcher);
XFREE(MTYPE_TMP, config);
}
static void test_config_present(struct test *test, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
test_config(test, fmt, false, ap);
va_end(ap);
}
static void test_config_absent(struct test *test, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
test_config(test, fmt, true, ap);
va_end(ap);
}
static void test_initialize(struct test *test)
{
union sockunion su;
/* Skip execution if test instance has previously failed. */
if (test->state != TEST_SUCCESS)
return;
/* Log message about (re)-initialization */
test_log(test, "prepare: %sinitialize bgp test environment",
test->bgp ? "re-" : "");
/* Attempt gracefully to purge previous BGP configuration. */
test_execute(test, "no router bgp");
test->state = TEST_SUCCESS;
/* Initialize BGP test environment. */
test_execute(test, "router bgp %d", cfg.local_asn);
test_execute(test, "no bgp default ipv4-unicast");
test_execute(test, "neighbor %s peer-group", cfg.peer_group);
if (test->o.use_iface_peer) {
test_execute(test, "neighbor %s interface", cfg.peer_interface);
test_execute(test, "neighbor %s remote-as %d",
cfg.peer_interface,
test->o.use_ibgp ? cfg.local_asn : cfg.peer_asn);
} else {
test_execute(test, "neighbor %s remote-as %d", cfg.peer_address,
test->o.use_ibgp ? cfg.local_asn : cfg.peer_asn);
}
if (test->state != TEST_SUCCESS)
return;
/* Fetch default BGP instance. */
test->bgp = bgp_get_default();
if (!test->bgp) {
test->state = TEST_INTERNAL_ERROR;
test->error =
str_printf("could not retrieve default bgp instance");
return;
}
/* Fetch peer instance. */
if (test->o.use_iface_peer) {
test->peer =
peer_lookup_by_conf_if(test->bgp, cfg.peer_interface);
} else {
str2sockunion(cfg.peer_address, &su);
test->peer = peer_lookup(test->bgp, &su);
}
if (!test->peer) {
test->state = TEST_INTERNAL_ERROR;
test->error = str_printf(
"could not retrieve instance of bgp peer [%s]",
cfg.peer_address);
return;
}
/* Fetch peer-group instance. */
test->group = peer_group_lookup(test->bgp, cfg.peer_group);
if (!test->group) {
test->state = TEST_INTERNAL_ERROR;
test->error = str_printf(
"could not retrieve instance of bgp peer-group [%s]",
cfg.peer_group);
return;
}
}
static struct test *test_new(const char *desc, bool use_ibgp,
bool use_iface_peer)
{
struct test *test;
test = XCALLOC(MTYPE_TMP, sizeof(struct test));
test->state = TEST_SUCCESS;
test->desc = XSTRDUP(MTYPE_TMP, desc);
test->log = list_new();
test->o.use_ibgp = use_ibgp;
test->o.use_iface_peer = use_iface_peer;
test->vty = vty_new();
test->vty->type = VTY_TERM;
vty_config_enter(test->vty, true, false);
test_initialize(test);
return test;
};
static void test_finish(struct test *test)
{
char *msg;
struct listnode *node, *nnode;
/* Print test output header. */
printf("%s [test] %s\n",
(test->state == TEST_SUCCESS) ? OUT_SYMBOL_OK : OUT_SYMBOL_NOK,
test->desc);
/* Print test log messages. */
for (ALL_LIST_ELEMENTS(test->log, node, nnode, msg)) {
printf("%s %s\n", OUT_SYMBOL_INFO, msg);
XFREE(MTYPE_TMP, msg);
}
/* Print test error message if available. */
if (test->state != TEST_SUCCESS && test->error)
printf("%s error: %s\n", OUT_SYMBOL_INFO, test->error);
/* Print machine-readable result of test. */
printf("%s\n", test->state == TEST_SUCCESS ? "OK" : "failed");
/* Cleanup allocated memory. */
if (test->vty) {
vty_close(test->vty);
test->vty = NULL;
}
if (test->log)
list_delete(&test->log);
if (test->desc)
XFREE(MTYPE_TMP, test->desc);
if (test->error)
XFREE(MTYPE_TMP, test->error);
XFREE(MTYPE_TMP, test);
}
static void test_peer_flags(struct test *test, struct test_peer_attr *pa,
struct peer *peer, bool exp_val, bool exp_ovrd)
{
bool exp_inv, cur_val, cur_ovrd, cur_inv;
/* Skip execution if test instance has previously failed. */
if (test->state != TEST_SUCCESS)
return;
/* Detect if flag is meant to be inverted. */
if (CHECK_FLAG(peer->sflags, PEER_STATUS_GROUP))
exp_inv = pa->o.invert_group;
else
exp_inv = pa->o.invert_peer;
/* Flip expected value if flag is inverted. */
exp_val ^= exp_inv;