Example #1
0
static void
fail_server_cb(struct evdns_server_request *req, void *data)
{
	const char *question;
	int *count = data;
	struct in_addr in;

	/* Drop the first N requests that we get. */
	if (*count > 0) {
		--*count;
		tt_want(! evdns_server_request_drop(req));
		return;
	}

	if (req->nquestions != 1)
		TT_DIE(("Only handling one question at a time; got %d",
			req->nquestions));

	question = req->questions[0]->name;

	if (!evutil_ascii_strcasecmp(question, "google.com")) {
		/* Detect a probe, and get out of the loop. */
		event_base_loopexit(exit_base, NULL);
	}

	evutil_inet_pton(AF_INET, "16.32.64.128", &in);
	evdns_server_request_add_a_reply(req, question, 1, &in.s_addr,
	    100);
	tt_assert(! evdns_server_request_respond(req, 0))
	return;
end:
	tt_want(! evdns_server_request_drop(req));
}
Example #2
0
void
regress_dns_server_cb(struct evdns_server_request *req, void *data)
{
	struct regress_dns_server_table *tab = data;
	const char *question;

	if (req->nquestions != 1)
		TT_DIE(("Only handling one question at a time; got %d",
			req->nquestions));

	question = req->questions[0]->name;

	while (tab->q && evutil_ascii_strcasecmp(question, tab->q) &&
	    strcmp("*", tab->q))
		++tab;
	if (tab->q == NULL)
		TT_DIE(("Unexpected question: '%s'", question));

	++tab->seen;

	if (!strcmp(tab->anstype, "err")) {
		int err = atoi(tab->ans);
		tt_assert(! evdns_server_request_respond(req, err));
		return;
	} else if (!strcmp(tab->anstype, "errsoa")) {
		int err = atoi(tab->ans);
		char soa_record[] =
			"\x04" "dns1" "\x05" "icann" "\x03" "org" "\0"
			"\x0a" "hostmaster" "\x05" "icann" "\x03" "org" "\0"
			"\x77\xde\x5e\xba" /* serial */
			"\x00\x00\x1c\x20" /* refreshtime = 2h */
			"\x00\x00\x0e\x10" /* retry = 1h */
			"\x00\x12\x75\x00" /* expiration = 14d */
			"\x00\x00\x0e\x10" /* min.ttl = 1h */
			;
		evdns_server_request_add_reply(
			req, EVDNS_AUTHORITY_SECTION,
			"example.com", EVDNS_TYPE_SOA, EVDNS_CLASS_INET,
			42, sizeof(soa_record) - 1, 0, soa_record);
		tt_assert(! evdns_server_request_respond(req, err));
		return;
	} else if (!strcmp(tab->anstype, "A")) {
		struct in_addr in;
		evutil_inet_pton(AF_INET, tab->ans, &in);
		evdns_server_request_add_a_reply(req, question, 1, &in.s_addr,
		    100);
	} else if (!strcmp(tab->anstype, "AAAA")) {
		struct in6_addr in6;
		evutil_inet_pton(AF_INET6, tab->ans, &in6);
		evdns_server_request_add_aaaa_reply(req,
		    question, 1, &in6.s6_addr, 100);
	} else {
		TT_DIE(("Weird table entry with type '%s'", tab->anstype));
	}
	tt_assert(! evdns_server_request_respond(req, 0))
	return;
end:
	tt_want(! evdns_server_request_drop(req));
}
Example #3
0
static void
dns_server_request_cb(struct evdns_server_request *req, void *data)
{
	int i, r;
	const char TEST_ARPA[] = "11.11.168.192.in-addr.arpa";
	for (i = 0; i < req->nquestions; ++i) {
		struct in_addr ans;
		ans.s_addr = htonl(0xc0a80b0bUL); /* 192.168.11.11 */
		if (req->questions[i]->type == EVDNS_TYPE_A &&
			req->questions[i]->dns_question_class == EVDNS_CLASS_INET &&
			!strcasecmp(req->questions[i]->name, "zz.example.com")) {
			r = evdns_server_request_add_a_reply(req,
												 req->questions[i]->name,
												 1, &ans.s_addr, 12345);
			if (r<0)
				dns_ok = 0;
		} else if (req->questions[i]->type == EVDNS_TYPE_AAAA &&
				   req->questions[i]->dns_question_class == EVDNS_CLASS_INET &&
				   !strcasecmp(req->questions[i]->name, "zz.example.com")) {
			char addr6[17] = "abcdefghijklmnop";
			r = evdns_server_request_add_aaaa_reply(req,
													req->questions[i]->name,
												 1, addr6, 123);
			if (r<0)
				dns_ok = 0;
		} else if (req->questions[i]->type == EVDNS_TYPE_PTR &&
				   req->questions[i]->dns_question_class == EVDNS_CLASS_INET &&
				   !strcasecmp(req->questions[i]->name, TEST_ARPA)) {
			r = evdns_server_request_add_ptr_reply(req, NULL,
												   req->questions[i]->name,
												   "ZZ.EXAMPLE.COM", 54321);
			if (r<0)
				dns_ok = 0;
                } else if (req->questions[i]->type == EVDNS_TYPE_A &&
		    req->questions[i]->dns_question_class == EVDNS_CLASS_INET &&
		    !strcasecmp(req->questions[i]->name, "drop.example.com")) {
			if (evdns_server_request_drop(req)<0)
				dns_ok = 0;
			return;
		} else {
			fprintf(stdout, "Unexpected question %d %d \"%s\" ",
					req->questions[i]->type,
					req->questions[i]->dns_question_class,
					req->questions[i]->name);
			dns_ok = 0;
		}
	}
	r = evdns_server_request_respond(req, 0);
	if (r<0) {
		fprintf(stdout, "Couldn't send reply. ");
		dns_ok = 0;
	}
}
Example #4
0
void
regress_dns_server_cb(struct evdns_server_request *req, void *data)
{
	struct regress_dns_server_table *tab = data;
	const char *question;

	if (req->nquestions != 1)
		TT_DIE(("Only handling one question at a time; got %d",
			req->nquestions));

	question = req->questions[0]->name;

	while (tab->q && evutil_ascii_strcasecmp(question, tab->q) &&
	    strcmp("*", tab->q))
		++tab;
	if (tab->q == NULL)
		TT_DIE(("Unexpected question: '%s'", question));

	++tab->seen;

	if (!strcmp(tab->anstype, "err")) {
		int err = atoi(tab->ans);
		tt_assert(! evdns_server_request_respond(req, err));
		return;
	} else if (!strcmp(tab->anstype, "A")) {
		struct in_addr in;
		evutil_inet_pton(AF_INET, tab->ans, &in);
		evdns_server_request_add_a_reply(req, question, 1, &in.s_addr,
		    100);
	} else if (!strcmp(tab->anstype, "AAAA")) {
		struct in6_addr in6;
		evutil_inet_pton(AF_INET6, tab->ans, &in6);
		evdns_server_request_add_aaaa_reply(req,
		    question, 1, &in6.s6_addr, 100);
	} else {
		TT_DIE(("Weird table entry with type '%s'", tab->anstype));
	}
	tt_assert(! evdns_server_request_respond(req, 0))
	return;
end:
	tt_want(! evdns_server_request_drop(req));
}
Example #5
0
/* Implements a DNS server for the connect_hostname test and the
 * getaddrinfo_async test */
static void
be_getaddrinfo_server_cb(struct evdns_server_request *req, void *data)
{
	int i;
	int *n_got_p=data;
	int added_any=0;
	++*n_got_p;

	for (i=0;i<req->nquestions;++i) {
		const int qtype = req->questions[i]->type;
		const int qclass = req->questions[i]->dns_question_class;
		const char *qname = req->questions[i]->name;
		struct in_addr ans;
		struct in6_addr ans6;
		memset(&ans6, 0, sizeof(ans6));

		if (qtype == EVDNS_TYPE_A &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, "nobodaddy.example.com")) {
			ans.s_addr = htonl(0x7f000001);
			evdns_server_request_add_a_reply(req, qname,
			    1, &ans.s_addr, 2000);
			added_any = 1;
		} else if (!evutil_ascii_strcasecmp(qname,
			"nosuchplace.example.com")) {
			/* ok, just say notfound. */
		} else if (!evutil_ascii_strcasecmp(qname,
			"both.example.com")) {
			if (qtype == EVDNS_TYPE_A) {
				ans.s_addr = htonl(0x50502020);
				evdns_server_request_add_a_reply(req, qname,
				    1, &ans.s_addr, 2000);
				added_any = 1;
			} else if (qtype == EVDNS_TYPE_AAAA) {
				ans6.s6_addr[0] = 0x80;
				ans6.s6_addr[1] = 0xff;
				ans6.s6_addr[14] = 0xbb;
				ans6.s6_addr[15] = 0xbb;
				evdns_server_request_add_aaaa_reply(req, qname,
				    1, &ans6.s6_addr, 2000);
				added_any = 1;
			}
			evdns_server_request_add_cname_reply(req, qname,
			    "both-canonical.example.com", 1000);
		} else if (!evutil_ascii_strcasecmp(qname,
			"v4only.example.com") ||
		    !evutil_ascii_strcasecmp(qname, "v4assert.example.com")) {
			if (qtype == EVDNS_TYPE_A) {
				ans.s_addr = htonl(0x12345678);
				evdns_server_request_add_a_reply(req, qname,
				    1, &ans.s_addr, 2000);
				added_any = 1;
			} else if (!evutil_ascii_strcasecmp(qname,
				"v4assert.example.com")) {
				TT_FAIL(("Got an AAAA request for v4assert"));
			}
		} else if (!evutil_ascii_strcasecmp(qname,
			"v6only.example.com") ||
		    !evutil_ascii_strcasecmp(qname, "v6assert.example.com")) {
			if (qtype == EVDNS_TYPE_AAAA) {
				ans6.s6_addr[0] = 0x0b;
				ans6.s6_addr[1] = 0x0b;
				ans6.s6_addr[14] = 0xf0;
				ans6.s6_addr[15] = 0x0d;
				evdns_server_request_add_aaaa_reply(req, qname,
				    1, &ans6.s6_addr, 2000);
				added_any = 1;
			}  else if (!evutil_ascii_strcasecmp(qname,
				"v6assert.example.com")) {
				TT_FAIL(("Got a A request for v6assert"));
			}
		} else if (!evutil_ascii_strcasecmp(qname,
			"v6timeout.example.com")) {
			if (qtype == EVDNS_TYPE_A) {
				ans.s_addr = htonl(0xabcdef01);
				evdns_server_request_add_a_reply(req, qname,
				    1, &ans.s_addr, 2000);
				added_any = 1;
			} else if (qtype == EVDNS_TYPE_AAAA) {
				/* Let the v6 request time out.*/
				evdns_server_request_drop(req);
				return;
			}
		} else if (!evutil_ascii_strcasecmp(qname,
			"v4timeout.example.com")) {
			if (qtype == EVDNS_TYPE_AAAA) {
				ans6.s6_addr[0] = 0x0a;
				ans6.s6_addr[1] = 0x0a;
				ans6.s6_addr[14] = 0xff;
				ans6.s6_addr[15] = 0x01;
				evdns_server_request_add_aaaa_reply(req, qname,
				    1, &ans6.s6_addr, 2000);
				added_any = 1;
			} else if (qtype == EVDNS_TYPE_A) {
				/* Let the v4 request time out.*/
				evdns_server_request_drop(req);
				return;
			}
		} else if (!evutil_ascii_strcasecmp(qname,
			"v6timeout-nonexist.example.com")) {
			if (qtype == EVDNS_TYPE_A) {
				/* Fall through, give an nexist. */
			} else if (qtype == EVDNS_TYPE_AAAA) {
				/* Let the v6 request time out.*/
				evdns_server_request_drop(req);
				return;
			}
		} else if (!evutil_ascii_strcasecmp(qname,
			"all-timeout.example.com")) {
			/* drop all requests */
			evdns_server_request_drop(req);
			return;
		} else {
			TT_GRIPE(("Got weird request for %s",qname));
		}
	}
	if (added_any)
		evdns_server_request_respond(req, 0);
	else
		evdns_server_request_respond(req, 3);
}
Example #6
0
static void
dns_server_request_cb(struct evdns_server_request *req, void *data)
{
	int i, r;
	const char TEST_ARPA[] = "11.11.168.192.in-addr.arpa";
	const char TEST_IN6[] =
	    "f.e.f.e." "0.0.0.0." "0.0.0.0." "1.1.1.1."
	    "a.a.a.a." "0.0.0.0." "0.0.0.0." "0.f.f.f.ip6.arpa";

	for (i = 0; i < req->nquestions; ++i) {
		const int qtype = req->questions[i]->type;
		const int qclass = req->questions[i]->dns_question_class;
		const char *qname = req->questions[i]->name;

		struct in_addr ans;
		ans.s_addr = htonl(0xc0a80b0bUL); /* 192.168.11.11 */
		if (qtype == EVDNS_TYPE_A &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, "zz.example.com")) {
			r = evdns_server_request_add_a_reply(req, qname,
			    1, &ans.s_addr, 12345);
			if (r<0)
				dns_ok = 0;
		} else if (qtype == EVDNS_TYPE_AAAA &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, "zz.example.com")) {
			char addr6[17] = "abcdefghijklmnop";
			r = evdns_server_request_add_aaaa_reply(req,
			    qname, 1, addr6, 123);
			if (r<0)
				dns_ok = 0;
		} else if (qtype == EVDNS_TYPE_PTR &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, TEST_ARPA)) {
			r = evdns_server_request_add_ptr_reply(req, NULL,
			    qname, "ZZ.EXAMPLE.COM", 54321);
			if (r<0)
				dns_ok = 0;
		} else if (qtype == EVDNS_TYPE_PTR &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, TEST_IN6)){
			r = evdns_server_request_add_ptr_reply(req, NULL,
			    qname,
			    "ZZ-INET6.EXAMPLE.COM", 54322);
			if (r<0)
				dns_ok = 0;
                } else if (qtype == EVDNS_TYPE_A &&
		    qclass == EVDNS_CLASS_INET &&
		    !evutil_ascii_strcasecmp(qname, "drop.example.com")) {
			if (evdns_server_request_drop(req)<0)
				dns_ok = 0;
			return;
		} else {
			printf("Unexpected question %d %d \"%s\" ",
			    qtype, qclass, qname);
			dns_ok = 0;
		}
	}
	r = evdns_server_request_respond(req, 0);
	if (r<0) {
		printf("Couldn't send reply. ");
		dns_ok = 0;
	}
}