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/*-
* Copyright 2016 Vsevolod Stakhov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include "rspamd.h"
#include "ottery.h"
#include "contrib/libev/ev.h"
#include <math.h>
const char *test_upstream_list = "microsoft.com:443:1,google.com:80:2,kernel.org:443:3";
const char *new_upstream_list = "freebsd.org:80";
char test_key[32];
extern struct ev_loop *event_loop;
static void
rspamd_upstream_test_method(struct upstream_list *ls,
enum rspamd_upstream_rotation rot, const gchar *expected)
{
struct upstream *up;
if (rot != RSPAMD_UPSTREAM_HASHED) {
up = rspamd_upstream_get(ls, rot, NULL, 0);
g_assert(up != NULL);
g_assert(strcmp(rspamd_upstream_name(up), expected) == 0);
}
else {
up = rspamd_upstream_get(ls, RSPAMD_UPSTREAM_HASHED, test_key,
sizeof(test_key));
g_assert(up != NULL);
g_assert(strcmp(rspamd_upstream_name(up), expected) == 0);
}
}
static void
rspamd_upstream_timeout_handler(EV_P_ ev_timer *w, int revents)
{
struct rspamd_dns_resolver *resolver = (struct rspamd_dns_resolver *) w->data;
rdns_resolver_release(resolver->r);
}
void rspamd_upstream_test_func(void)
{
struct upstream_list *ls, *nls;
struct upstream *up, *upn;
struct rspamd_dns_resolver *resolver;
struct rspamd_config *cfg;
gint i, success = 0;
const gint assumptions = 100500;
gdouble p;
static ev_timer ev;
rspamd_inet_addr_t *addr, *next_addr, *paddr;
cfg = rspamd_config_new(RSPAMD_CONFIG_INIT_SKIP_LUA);
cfg->dns_retransmits = 2;
cfg->dns_timeout = 0.5;
cfg->upstream_max_errors = 1;
cfg->upstream_revive_time = 0.5;
cfg->upstream_error_time = 2;
resolver = rspamd_dns_resolver_init(NULL, event_loop, cfg);
rspamd_upstreams_library_config(cfg, cfg->ups_ctx, event_loop, resolver->r);
/*
* Test v4/v6 priorities
*/
nls = rspamd_upstreams_create(cfg->ups_ctx);
g_assert(rspamd_upstreams_add_upstream(nls, "127.0.0.1", 0,
RSPAMD_UPSTREAM_PARSE_DEFAULT,
NULL));
up = rspamd_upstream_get(nls, RSPAMD_UPSTREAM_RANDOM, NULL, 0);
rspamd_parse_inet_address(&paddr, "127.0.0.2", strlen("127.0.0.2"),
RSPAMD_INET_ADDRESS_PARSE_DEFAULT);
g_assert(rspamd_upstream_add_addr(up, paddr));
rspamd_parse_inet_address(&paddr, "::1", strlen("::1"),
RSPAMD_INET_ADDRESS_PARSE_DEFAULT);
g_assert(rspamd_upstream_add_addr(up, paddr));
/* Rewind to start */
addr = rspamd_upstream_addr_next(up);
addr = rspamd_upstream_addr_next(up);
/* cur should be zero here */
addr = rspamd_upstream_addr_next(up);
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(addr) == AF_INET);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET);
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET6);
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET);
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET);
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET6);
/* Test errors with IPv6 */
rspamd_upstream_fail(up, TRUE, NULL);
/* Now we should have merely IPv4 addresses in rotation */
addr = rspamd_upstream_addr_next(up);
for (i = 0; i < 256; i++) {
next_addr = rspamd_upstream_addr_next(up);
g_assert(rspamd_inet_address_get_af(addr) == AF_INET);
g_assert(rspamd_inet_address_get_af(next_addr) == AF_INET);
g_assert(rspamd_inet_address_compare(addr, next_addr, FALSE) != 0);
addr = next_addr;
}
rspamd_upstreams_destroy(nls);
ls = rspamd_upstreams_create(cfg->ups_ctx);
g_assert(rspamd_upstreams_parse_line(ls, test_upstream_list, 443, NULL));
g_assert(rspamd_upstreams_count(ls) == 3);
/* Test master-slave rotation */
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_MASTER_SLAVE, "kernel.org");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_MASTER_SLAVE, "kernel.org");
/* Test round-robin rotation */
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "google.com");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "kernel.org");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "google.com");
rspamd_upstream_test_method(ls, RSPAMD_UPSTREAM_ROUND_ROBIN, "microsoft.com");
/* Test stable hashing */
nls = rspamd_upstreams_create(cfg->ups_ctx);
g_assert(rspamd_upstreams_parse_line(nls, test_upstream_list, 443, NULL));
g_assert(rspamd_upstreams_parse_line(nls, new_upstream_list, 443, NULL));
for (i = 0; i < assumptions; i++) {
ottery_rand_bytes(test_key, sizeof(test_key));
up = rspamd_upstream_get(ls, RSPAMD_UPSTREAM_HASHED, test_key,
sizeof(test_key));
upn = rspamd_upstream_get(nls, RSPAMD_UPSTREAM_HASHED, test_key,
sizeof(test_key));
if (strcmp(rspamd_upstream_name(up), rspamd_upstream_name(upn)) == 0) {
success++;
}
}
p = 1.0 - fabs(3.0 / 4.0 - (gdouble) success / (gdouble) assumptions);
/*
* P value is calculated as following:
* when we add/remove M upstreams from the list, the probability of hash
* miss should be close to the relation N / (N + M), where N is the size of
* the previous upstreams list.
*/
msg_debug("p value for hash consistency: %.6f", p);
g_assert(p > 0.9);
rspamd_upstreams_destroy(nls);
/* Upstream fail test */
ev.data = resolver;
ev_timer_init(&ev, rspamd_upstream_timeout_handler, 2.0, 0.0);
up = rspamd_upstream_get(ls, RSPAMD_UPSTREAM_MASTER_SLAVE, NULL, 0);
for (i = 0; i < 100; i++) {
rspamd_upstream_fail(up, TRUE, NULL);
}
g_assert(rspamd_upstreams_alive(ls) == 2);
ev_timer_start(event_loop, &ev);
ev_run(event_loop, 0);
g_assert(rspamd_upstreams_alive(ls) == 3);
rspamd_upstreams_destroy(ls);
REF_RELEASE(cfg);
}
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