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tor/src/test/test_policy.c

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/* Copyright (c) 2013-2016, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include "or.h"
#define CONFIG_PRIVATE
#include "config.h"
#include "router.h"
#include "routerparse.h"
#define POLICIES_PRIVATE
#include "policies.h"
#include "test.h"
/* Helper: assert that short_policy parses and writes back out as itself,
or as <b>expected</b> if that's provided. */
static void
test_short_policy_parse(const char *input,
const char *expected)
{
short_policy_t *short_policy = NULL;
char *out = NULL;
if (expected == NULL)
expected = input;
short_policy = parse_short_policy(input);
tt_assert(short_policy);
out = write_short_policy(short_policy);
tt_str_op(out, OP_EQ, expected);
done:
tor_free(out);
short_policy_free(short_policy);
}
/** Helper: Parse the exit policy string in <b>policy_str</b> with
* <b>options</b>, and make sure that policies_summarize() produces the string
* <b>expected_summary</b> from it when called with family. */
static void
test_policy_summary_helper_family_flags(const char *policy_str,
const char *expected_summary,
sa_family_t family,
exit_policy_parser_cfg_t options)
{
config_line_t line;
smartlist_t *policy = smartlist_new();
char *summary = NULL;
char *summary_after = NULL;
int r;
short_policy_t *short_policy = NULL;
int success = 0;
line.key = (char*)"foo";
line.value = (char *)policy_str;
line.next = NULL;
r = policies_parse_exit_policy(&line, &policy,
options, NULL);
tt_int_op(r,OP_EQ, 0);
summary = policy_summarize(policy, family);
tt_assert(summary != NULL);
tt_str_op(summary,OP_EQ, expected_summary);
short_policy = parse_short_policy(summary);
tt_assert(short_policy);
summary_after = write_short_policy(short_policy);
tt_str_op(summary,OP_EQ, summary_after);
success = 1;
done:
/* If we don't print the flags on failure, it's very hard to diagnose bugs */
if (!success)
TT_DECLARE("CTXT", ("\n IPv%d\n Options: %x\n Policy: %s",
family == AF_INET ? 4 : 6, options, policy_str));
tor_free(summary_after);
tor_free(summary);
if (policy)
addr_policy_list_free(policy);
short_policy_free(short_policy);
}
/** Like test_policy_summary_helper_family_flags, but tries all the different
* flag combinations */
static void
test_policy_summary_helper_family(const char *policy_str,
const char *expected_summary,
sa_family_t family)
{
for (exit_policy_parser_cfg_t opt = 0;
opt <= EXIT_POLICY_OPTION_ALL;
opt++) {
if (family == AF_INET6 && !(opt & EXIT_POLICY_IPV6_ENABLED))
/* Skip the test: IPv6 addresses need IPv6 enabled */
continue;
if (opt & EXIT_POLICY_REJECT_LOCAL_INTERFACES)
/* Skip the test: local interfaces are machine-specific */
continue;
test_policy_summary_helper_family_flags(policy_str, expected_summary,
family, opt);
}
}
/** Like test_policy_summary_helper_family, but uses expected_summary for
* both IPv4 and IPv6. */
static void
test_policy_summary_helper(const char *policy_str,
const char *expected_summary)
{
test_policy_summary_helper_family(policy_str, expected_summary, AF_INET);
test_policy_summary_helper_family(policy_str, expected_summary, AF_INET6);
}
/** Like test_policy_summary_helper_family, but uses expected_summary4 for
* IPv4 and expected_summary6 for IPv6. */
static void
test_policy_summary_helper6(const char *policy_str,
const char *expected_summary4,
const char *expected_summary6)
{
test_policy_summary_helper_family(policy_str, expected_summary4, AF_INET);
test_policy_summary_helper_family(policy_str, expected_summary6, AF_INET6);
}
/** Run unit tests for generating summary lines of exit policies */
static void
test_policies_general(void *arg)
{
int i;
smartlist_t *policy = NULL, *policy2 = NULL, *policy3 = NULL,
*policy4 = NULL, *policy5 = NULL, *policy6 = NULL,
*policy7 = NULL, *policy8 = NULL, *policy9 = NULL,
*policy10 = NULL, *policy11 = NULL, *policy12 = NULL;
addr_policy_t *p;
tor_addr_t tar, tar2;
smartlist_t *addr_list = NULL;
config_line_t line;
smartlist_t *sm = NULL;
char *policy_str = NULL;
short_policy_t *short_parsed = NULL;
int malformed_list = -1;
(void)arg;
policy = smartlist_new();
p = router_parse_addr_policy_item_from_string("reject 192.168.0.0/16:*", -1,
&malformed_list);
tt_assert(p != NULL);
tt_int_op(ADDR_POLICY_REJECT,OP_EQ, p->policy_type);
tor_addr_from_ipv4h(&tar, 0xc0a80000u);
tt_int_op(0,OP_EQ, tor_addr_compare(&p->addr, &tar, CMP_EXACT));
tt_int_op(16,OP_EQ, p->maskbits);
tt_int_op(1,OP_EQ, p->prt_min);
tt_int_op(65535,OP_EQ, p->prt_max);
smartlist_add(policy, p);
tor_addr_from_ipv4h(&tar, 0x01020304u);
tt_assert(ADDR_POLICY_ACCEPTED ==
compare_tor_addr_to_addr_policy(&tar, 2, policy));
tor_addr_make_unspec(&tar);
tt_assert(ADDR_POLICY_PROBABLY_ACCEPTED ==
compare_tor_addr_to_addr_policy(&tar, 2, policy));
tor_addr_from_ipv4h(&tar, 0xc0a80102);
tt_assert(ADDR_POLICY_REJECTED ==
compare_tor_addr_to_addr_policy(&tar, 2, policy));
tt_int_op(0, OP_EQ, policies_parse_exit_policy(NULL, &policy2,
EXIT_POLICY_IPV6_ENABLED |
EXIT_POLICY_REJECT_PRIVATE |
EXIT_POLICY_ADD_DEFAULT, NULL));
tt_assert(policy2);
tor_addr_from_ipv4h(&tar, 0x0306090cu);
tor_addr_parse(&tar2, "[2000::1234]");
addr_list = smartlist_new();
smartlist_add(addr_list, &tar);
smartlist_add(addr_list, &tar2);
tt_int_op(0, OP_EQ, policies_parse_exit_policy(NULL, &policy12,
EXIT_POLICY_IPV6_ENABLED |
EXIT_POLICY_REJECT_PRIVATE |
EXIT_POLICY_ADD_DEFAULT,
addr_list));
smartlist_free(addr_list);
addr_list = NULL;
tt_assert(policy12);
policy3 = smartlist_new();
p = router_parse_addr_policy_item_from_string("reject *:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy3, p);
p = router_parse_addr_policy_item_from_string("accept *:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy3, p);
policy4 = smartlist_new();
p = router_parse_addr_policy_item_from_string("accept *:443", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy4, p);
p = router_parse_addr_policy_item_from_string("accept *:443", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy4, p);
policy5 = smartlist_new();
p = router_parse_addr_policy_item_from_string("reject 0.0.0.0/8:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 169.254.0.0/16:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 127.0.0.0/8:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 192.168.0.0/16:*",
-1, &malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 10.0.0.0/8:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 172.16.0.0/12:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject 80.190.250.90:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject *:1-65534", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("reject *:65535", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
p = router_parse_addr_policy_item_from_string("accept *:1-65535", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy5, p);
policy6 = smartlist_new();
p = router_parse_addr_policy_item_from_string("accept 43.3.0.0/9:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy6, p);
policy7 = smartlist_new();
p = router_parse_addr_policy_item_from_string("accept 0.0.0.0/8:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy7, p);
tt_int_op(0, OP_EQ, policies_parse_exit_policy(NULL, &policy8,
EXIT_POLICY_IPV6_ENABLED |
EXIT_POLICY_REJECT_PRIVATE |
EXIT_POLICY_ADD_DEFAULT,
NULL));
tt_assert(policy8);
tt_int_op(0, OP_EQ, policies_parse_exit_policy(NULL, &policy9,
EXIT_POLICY_REJECT_PRIVATE |
EXIT_POLICY_ADD_DEFAULT,
NULL));
tt_assert(policy9);
/* accept6 * and reject6 * produce IPv6 wildcards only */
policy10 = smartlist_new();
p = router_parse_addr_policy_item_from_string("accept6 *:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy10, p);
policy11 = smartlist_new();
p = router_parse_addr_policy_item_from_string("reject6 *:*", -1,
&malformed_list);
tt_assert(p != NULL);
smartlist_add(policy11, p);
tt_assert(!exit_policy_is_general_exit(policy));
tt_assert(exit_policy_is_general_exit(policy2));
tt_assert(!exit_policy_is_general_exit(NULL));
tt_assert(!exit_policy_is_general_exit(policy3));
tt_assert(!exit_policy_is_general_exit(policy4));
tt_assert(!exit_policy_is_general_exit(policy5));
tt_assert(!exit_policy_is_general_exit(policy6));
tt_assert(!exit_policy_is_general_exit(policy7));
tt_assert(exit_policy_is_general_exit(policy8));
tt_assert(exit_policy_is_general_exit(policy9));
tt_assert(!exit_policy_is_general_exit(policy10));
tt_assert(!exit_policy_is_general_exit(policy11));
tt_assert(!addr_policies_eq(policy, policy2));
tt_assert(!addr_policies_eq(policy, NULL));
tt_assert(addr_policies_eq(policy2, policy2));
tt_assert(addr_policies_eq(NULL, NULL));
tt_assert(!policy_is_reject_star(policy2, AF_INET, 1));
tt_assert(policy_is_reject_star(policy, AF_INET, 1));
tt_assert(policy_is_reject_star(policy10, AF_INET, 1));
tt_assert(!policy_is_reject_star(policy10, AF_INET6, 1));
tt_assert(policy_is_reject_star(policy11, AF_INET, 1));
tt_assert(policy_is_reject_star(policy11, AF_INET6, 1));
tt_assert(policy_is_reject_star(NULL, AF_INET, 1));
tt_assert(policy_is_reject_star(NULL, AF_INET6, 1));
tt_assert(!policy_is_reject_star(NULL, AF_INET, 0));
tt_assert(!policy_is_reject_star(NULL, AF_INET6, 0));
addr_policy_list_free(policy);
policy = NULL;
/* make sure assume_action works */
malformed_list = 0;
p = router_parse_addr_policy_item_from_string("127.0.0.1",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("127.0.0.1:*",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("[::]",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("[::]:*",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("[face::b]",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("[b::aaaa]",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("*",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("*4",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("*6",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(p);
addr_policy_free(p);
tt_assert(!malformed_list);
/* These are all ambiguous IPv6 addresses, it's good that we reject them */
p = router_parse_addr_policy_item_from_string("acce::abcd",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(!p);
tt_assert(malformed_list);
malformed_list = 0;
p = router_parse_addr_policy_item_from_string("7:1234",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(!p);
tt_assert(malformed_list);
malformed_list = 0;
p = router_parse_addr_policy_item_from_string("::",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(!p);
tt_assert(malformed_list);
malformed_list = 0;
/* make sure compacting logic works. */
policy = NULL;
line.key = (char*)"foo";
line.value = (char*)"accept *:80,reject private:*,reject *:*";
line.next = NULL;
tt_int_op(0, OP_EQ, policies_parse_exit_policy(&line,&policy,
EXIT_POLICY_IPV6_ENABLED |
EXIT_POLICY_ADD_DEFAULT, NULL));
tt_assert(policy);
//test_streq(policy->string, "accept *:80");
//test_streq(policy->next->string, "reject *:*");
tt_int_op(smartlist_len(policy),OP_EQ, 4);
/* test policy summaries */
/* check if we properly ignore private IP addresses */
test_policy_summary_helper("reject 192.168.0.0/16:*,"
"reject 0.0.0.0/8:*,"
"reject 10.0.0.0/8:*,"
"accept *:10-30,"
"accept *:90,"
"reject *:*",
"accept 10-30,90");
/* check all accept policies, and proper counting of rejects */
test_policy_summary_helper("reject 11.0.0.0/9:80,"
"reject 12.0.0.0/9:80,"
"reject 13.0.0.0/9:80,"
"reject 14.0.0.0/9:80,"
"accept *:*", "accept 1-65535");
test_policy_summary_helper("reject 11.0.0.0/9:80,"
"reject 12.0.0.0/9:80,"
"reject 13.0.0.0/9:80,"
"reject 14.0.0.0/9:80,"
"reject 15.0.0.0:81,"
"accept *:*", "accept 1-65535");
test_policy_summary_helper6("reject 11.0.0.0/9:80,"
"reject 12.0.0.0/9:80,"
"reject 13.0.0.0/9:80,"
"reject 14.0.0.0/9:80,"
"reject 15.0.0.0:80,"
"accept *:*",
"reject 80",
"accept 1-65535");
/* no exits */
test_policy_summary_helper("accept 11.0.0.0/9:80,"
"reject *:*",
"reject 1-65535");
/* port merging */
test_policy_summary_helper("accept *:80,"
"accept *:81,"
"accept *:100-110,"
"accept *:111,"
"reject *:*",
"accept 80-81,100-111");
/* border ports */
test_policy_summary_helper("accept *:1,"
"accept *:3,"
"accept *:65535,"
"reject *:*",
"accept 1,3,65535");
/* holes */
test_policy_summary_helper("accept *:1,"
"accept *:3,"
"accept *:5,"
"accept *:7,"
"reject *:*",
"accept 1,3,5,7");
test_policy_summary_helper("reject *:1,"
"reject *:3,"
"reject *:5,"
"reject *:7,"
"accept *:*",
"reject 1,3,5,7");
/* long policies */
/* standard long policy on many exits */
test_policy_summary_helper("accept *:20-23,"
"accept *:43,"
"accept *:53,"
"accept *:79-81,"
"accept *:88,"
"accept *:110,"
"accept *:143,"
"accept *:194,"
"accept *:220,"
"accept *:389,"
"accept *:443,"
"accept *:464,"
"accept *:531,"
"accept *:543-544,"
"accept *:554,"
"accept *:563,"
"accept *:636,"
"accept *:706,"
"accept *:749,"
"accept *:873,"
"accept *:902-904,"
"accept *:981,"
"accept *:989-995,"
"accept *:1194,"
"accept *:1220,"
"accept *:1293,"
"accept *:1500,"
"accept *:1533,"
"accept *:1677,"
"accept *:1723,"
"accept *:1755,"
"accept *:1863,"
"accept *:2082,"
"accept *:2083,"
"accept *:2086-2087,"
"accept *:2095-2096,"
"accept *:2102-2104,"
"accept *:3128,"
"accept *:3389,"
"accept *:3690,"
"accept *:4321,"
"accept *:4643,"
"accept *:5050,"
"accept *:5190,"
"accept *:5222-5223,"
"accept *:5228,"
"accept *:5900,"
"accept *:6660-6669,"
"accept *:6679,"
"accept *:6697,"
"accept *:8000,"
"accept *:8008,"
"accept *:8074,"
"accept *:8080,"
"accept *:8087-8088,"
"accept *:8332-8333,"
"accept *:8443,"
"accept *:8888,"
"accept *:9418,"
"accept *:9999,"
"accept *:10000,"
"accept *:11371,"
"accept *:12350,"
"accept *:19294,"
"accept *:19638,"
"accept *:23456,"
"accept *:33033,"
"accept *:64738,"
"reject *:*",
"accept 20-23,43,53,79-81,88,110,143,194,220,389,"
"443,464,531,543-544,554,563,636,706,749,873,"
"902-904,981,989-995,1194,1220,1293,1500,1533,"
"1677,1723,1755,1863,2082-2083,2086-2087,"
"2095-2096,2102-2104,3128,3389,3690,4321,4643,"
"5050,5190,5222-5223,5228,5900,6660-6669,6679,"
"6697,8000,8008,8074,8080,8087-8088,8332-8333,"
"8443,8888,9418,9999-10000,11371,12350,19294,"
"19638,23456,33033,64738");
/* short policy with configured addresses */
test_policy_summary_helper("reject 149.56.1.1:*,"
"reject [2607:5300:1:1::1:0]:*,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"accept 80,443");
/* short policy with configured and local interface addresses */
test_policy_summary_helper("reject 149.56.1.0:*,"
"reject 149.56.1.1:*,"
"reject 149.56.1.2:*,"
"reject 149.56.1.3:*,"
"reject 149.56.1.4:*,"
"reject 149.56.1.5:*,"
"reject 149.56.1.6:*,"
"reject 149.56.1.7:*,"
"reject [2607:5300:1:1::1:0]:*,"
"reject [2607:5300:1:1::1:1]:*,"
"reject [2607:5300:1:1::1:2]:*,"
"reject [2607:5300:1:1::1:3]:*,"
"reject [2607:5300:1:1::2:0]:*,"
"reject [2607:5300:1:1::2:1]:*,"
"reject [2607:5300:1:1::2:2]:*,"
"reject [2607:5300:1:1::2:3]:*,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"accept 80,443");
/* short policy with configured netblocks */
test_policy_summary_helper("reject 149.56.0.0/16,"
"reject6 2607:5300::/32,"
"reject6 2608:5300::/64,"
"reject6 2609:5300::/96,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"accept 80,443");
/* short policy with large netblocks that do not count as a rejection */
test_policy_summary_helper("reject 148.0.0.0/7,"
"reject6 2600::/16,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"accept 80,443");
/* short policy with large netblocks that count as a rejection */
test_policy_summary_helper("reject 148.0.0.0/6,"
"reject6 2600::/15,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"reject 1-65535");
/* short policy with huge netblocks that count as a rejection */
test_policy_summary_helper("reject 128.0.0.0/1,"
"reject6 8000::/1,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"reject 1-65535");
/* short policy which blocks everything using netblocks */
test_policy_summary_helper("reject 0.0.0.0/0,"
"reject6 ::/0,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"reject 1-65535");
/* short policy which has repeated redundant netblocks */
test_policy_summary_helper("reject 0.0.0.0/0,"
"reject 0.0.0.0/0,"
"reject 0.0.0.0/0,"
"reject 0.0.0.0/0,"
"reject 0.0.0.0/0,"
"reject6 ::/0,"
"reject6 ::/0,"
"reject6 ::/0,"
"reject6 ::/0,"
"reject6 ::/0,"
"accept *:80,"
"accept *:443,"
"reject *:*",
"reject 1-65535");
/* longest possible policy
* (1-2,4-5,... is longer, but gets reduced to 3,6,... )
* Going all the way to 65535 is incredibly slow, so we just go slightly
* more than the expected length */
test_policy_summary_helper("accept *:1,"
"accept *:3,"
"accept *:5,"
"accept *:7,"
"accept *:9,"
"accept *:11,"
"accept *:13,"
"accept *:15,"
"accept *:17,"
"accept *:19,"
"accept *:21,"
"accept *:23,"
"accept *:25,"
"accept *:27,"
"accept *:29,"
"accept *:31,"
"accept *:33,"
"accept *:35,"
"accept *:37,"
"accept *:39,"
"accept *:41,"
"accept *:43,"
"accept *:45,"
"accept *:47,"
"accept *:49,"
"accept *:51,"
"accept *:53,"
"accept *:55,"
"accept *:57,"
"accept *:59,"
"accept *:61,"
"accept *:63,"
"accept *:65,"
"accept *:67,"
"accept *:69,"
"accept *:71,"
"accept *:73,"
"accept *:75,"
"accept *:77,"
"accept *:79,"
"accept *:81,"
"accept *:83,"
"accept *:85,"
"accept *:87,"
"accept *:89,"
"accept *:91,"
"accept *:93,"
"accept *:95,"
"accept *:97,"
"accept *:99,"
"accept *:101,"
"accept *:103,"
"accept *:105,"
"accept *:107,"
"accept *:109,"
"accept *:111,"
"accept *:113,"
"accept *:115,"
"accept *:117,"
"accept *:119,"
"accept *:121,"
"accept *:123,"
"accept *:125,"
"accept *:127,"
"accept *:129,"
"accept *:131,"
"accept *:133,"
"accept *:135,"
"accept *:137,"
"accept *:139,"
"accept *:141,"
"accept *:143,"
"accept *:145,"
"accept *:147,"
"accept *:149,"
"accept *:151,"
"accept *:153,"
"accept *:155,"
"accept *:157,"
"accept *:159,"
"accept *:161,"
"accept *:163,"
"accept *:165,"
"accept *:167,"
"accept *:169,"
"accept *:171,"
"accept *:173,"
"accept *:175,"
"accept *:177,"
"accept *:179,"
"accept *:181,"
"accept *:183,"
"accept *:185,"
"accept *:187,"
"accept *:189,"
"accept *:191,"
"accept *:193,"
"accept *:195,"
"accept *:197,"
"accept *:199,"
"accept *:201,"
"accept *:203,"
"accept *:205,"
"accept *:207,"
"accept *:209,"
"accept *:211,"
"accept *:213,"
"accept *:215,"
"accept *:217,"
"accept *:219,"
"accept *:221,"
"accept *:223,"
"accept *:225,"
"accept *:227,"
"accept *:229,"
"accept *:231,"
"accept *:233,"
"accept *:235,"
"accept *:237,"
"accept *:239,"
"accept *:241,"
"accept *:243,"
"accept *:245,"
"accept *:247,"
"accept *:249,"
"accept *:251,"
"accept *:253,"
"accept *:255,"
"accept *:257,"
"accept *:259,"
"accept *:261,"
"accept *:263,"
"accept *:265,"
"accept *:267,"
"accept *:269,"
"accept *:271,"
"accept *:273,"
"accept *:275,"
"accept *:277,"
"accept *:279,"
"accept *:281,"
"accept *:283,"
"accept *:285,"
"accept *:287,"
"accept *:289,"
"accept *:291,"
"accept *:293,"
"accept *:295,"
"accept *:297,"
"accept *:299,"
"accept *:301,"
"accept *:303,"
"accept *:305,"
"accept *:307,"
"accept *:309,"
"accept *:311,"
"accept *:313,"
"accept *:315,"
"accept *:317,"
"accept *:319,"
"accept *:321,"
"accept *:323,"
"accept *:325,"
"accept *:327,"
"accept *:329,"
"accept *:331,"
"accept *:333,"
"accept *:335,"
"accept *:337,"
"accept *:339,"
"accept *:341,"
"accept *:343,"
"accept *:345,"
"accept *:347,"
"accept *:349,"
"accept *:351,"
"accept *:353,"
"accept *:355,"
"accept *:357,"
"accept *:359,"
"accept *:361,"
"accept *:363,"
"accept *:365,"
"accept *:367,"
"accept *:369,"
"accept *:371,"
"accept *:373,"
"accept *:375,"
"accept *:377,"
"accept *:379,"
"accept *:381,"
"accept *:383,"
"accept *:385,"
"accept *:387,"
"accept *:389,"
"accept *:391,"
"accept *:393,"
"accept *:395,"
"accept *:397,"
"accept *:399,"
"accept *:401,"
"accept *:403,"
"accept *:405,"
"accept *:407,"
"accept *:409,"
"accept *:411,"
"accept *:413,"
"accept *:415,"
"accept *:417,"
"accept *:419,"
"accept *:421,"
"accept *:423,"
"accept *:425,"
"accept *:427,"
"accept *:429,"
"accept *:431,"
"accept *:433,"
"accept *:435,"
"accept *:437,"
"accept *:439,"
"accept *:441,"
"accept *:443,"
"accept *:445,"
"accept *:447,"
"accept *:449,"
"accept *:451,"
"accept *:453,"
"accept *:455,"
"accept *:457,"
"accept *:459,"
"accept *:461,"
"accept *:463,"
"accept *:465,"
"accept *:467,"
"accept *:469,"
"accept *:471,"
"accept *:473,"
"accept *:475,"
"accept *:477,"
"accept *:479,"
"accept *:481,"
"accept *:483,"
"accept *:485,"
"accept *:487,"
"accept *:489,"
"accept *:491,"
"accept *:493,"
"accept *:495,"
"accept *:497,"
"accept *:499,"
"accept *:501,"
"accept *:503,"
"accept *:505,"
"accept *:507,"
"accept *:509,"
"accept *:511,"
"accept *:513,"
"accept *:515,"
"accept *:517,"
"accept *:519,"
"accept *:521,"
"accept *:523,"
"accept *:525,"
"accept *:527,"
"accept *:529,"
"reject *:*",
"accept 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,"
"31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,"
"63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,"
"95,97,99,101,103,105,107,109,111,113,115,117,"
"119,121,123,125,127,129,131,133,135,137,139,141,"
"143,145,147,149,151,153,155,157,159,161,163,165,"
"167,169,171,173,175,177,179,181,183,185,187,189,"
"191,193,195,197,199,201,203,205,207,209,211,213,"
"215,217,219,221,223,225,227,229,231,233,235,237,"
"239,241,243,245,247,249,251,253,255,257,259,261,"
"263,265,267,269,271,273,275,277,279,281,283,285,"
"287,289,291,293,295,297,299,301,303,305,307,309,"
"311,313,315,317,319,321,323,325,327,329,331,333,"
"335,337,339,341,343,345,347,349,351,353,355,357,"
"359,361,363,365,367,369,371,373,375,377,379,381,"
"383,385,387,389,391,393,395,397,399,401,403,405,"
"407,409,411,413,415,417,419,421,423,425,427,429,"
"431,433,435,437,439,441,443,445,447,449,451,453,"
"455,457,459,461,463,465,467,469,471,473,475,477,"
"479,481,483,485,487,489,491,493,495,497,499,501,"
"503,505,507,509,511,513,515,517,519,521,523");
/* Short policies with unrecognized formats should get accepted. */
test_short_policy_parse("accept fred,2,3-5", "accept 2,3-5");
test_short_policy_parse("accept 2,fred,3", "accept 2,3");
test_short_policy_parse("accept 2,fred,3,bob", "accept 2,3");
test_short_policy_parse("accept 2,-3,500-600", "accept 2,500-600");
/* Short policies with nil entries are accepted too. */
test_short_policy_parse("accept 1,,3", "accept 1,3");
test_short_policy_parse("accept 100-200,,", "accept 100-200");
test_short_policy_parse("reject ,1-10,,,,30-40", "reject 1-10,30-40");
/* Try parsing various broken short policies */
#define TT_BAD_SHORT_POLICY(s) \
do { \
tt_ptr_op(NULL, OP_EQ, (short_parsed = parse_short_policy((s)))); \
} while (0)
TT_BAD_SHORT_POLICY("accept 200-199");
TT_BAD_SHORT_POLICY("");
TT_BAD_SHORT_POLICY("rejekt 1,2,3");
TT_BAD_SHORT_POLICY("reject ");
TT_BAD_SHORT_POLICY("reject");
TT_BAD_SHORT_POLICY("rej");
TT_BAD_SHORT_POLICY("accept 2,3,100000");
TT_BAD_SHORT_POLICY("accept 2,3x,4");
TT_BAD_SHORT_POLICY("accept 2,3x,4");
TT_BAD_SHORT_POLICY("accept 2-");
TT_BAD_SHORT_POLICY("accept 2-x");
TT_BAD_SHORT_POLICY("accept 1-,3");
TT_BAD_SHORT_POLICY("accept 1-,3");
/* Make sure that IPv4 addresses are ignored in accept6/reject6 lines. */
p = router_parse_addr_policy_item_from_string("accept6 1.2.3.4:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("reject6 2.4.6.0/24:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(!malformed_list);
p = router_parse_addr_policy_item_from_string("accept6 *4:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(!malformed_list);
/* Make sure malformed policies are detected as such. */
p = router_parse_addr_policy_item_from_string("bad_token *4:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("accept6 **:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("accept */15:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("reject6 */:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("accept 127.0.0.1/33:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("accept6 [::1]/129:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("reject 8.8.8.8/-1:*", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("reject 8.8.4.4:10-5", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
p = router_parse_addr_policy_item_from_string("reject 1.2.3.4:-1", -1,
&malformed_list);
tt_assert(p == NULL);
tt_assert(malformed_list);
/* Test a too-long policy. */
{
char *policy_strng = NULL;
smartlist_t *chunks = smartlist_new();
smartlist_add_strdup(chunks, "accept ");
for (i=1; i<10000; ++i)
smartlist_add_asprintf(chunks, "%d,", i);
smartlist_add_strdup(chunks, "20000");
policy_strng = smartlist_join_strings(chunks, "", 0, NULL);
SMARTLIST_FOREACH(chunks, char *, ch, tor_free(ch));
smartlist_free(chunks);
short_parsed = parse_short_policy(policy_strng);/* shouldn't be accepted */
tor_free(policy_strng);
tt_ptr_op(NULL, OP_EQ, short_parsed);
}
/* truncation ports */
sm = smartlist_new();
for (i=1; i<2000; i+=2) {
char buf[POLICY_BUF_LEN];
tor_snprintf(buf, sizeof(buf), "reject *:%d", i);
smartlist_add_strdup(sm, buf);
}
smartlist_add_strdup(sm, "accept *:*");
policy_str = smartlist_join_strings(sm, ",", 0, NULL);
test_policy_summary_helper( policy_str,
"accept 2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,"
"46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,"
"92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,"
"130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,164,"
"166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,"
"202,204,206,208,210,212,214,216,218,220,222,224,226,228,230,232,234,236,"
"238,240,242,244,246,248,250,252,254,256,258,260,262,264,266,268,270,272,"
"274,276,278,280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,"
"310,312,314,316,318,320,322,324,326,328,330,332,334,336,338,340,342,344,"
"346,348,350,352,354,356,358,360,362,364,366,368,370,372,374,376,378,380,"
"382,384,386,388,390,392,394,396,398,400,402,404,406,408,410,412,414,416,"
"418,420,422,424,426,428,430,432,434,436,438,440,442,444,446,448,450,452,"
"454,456,458,460,462,464,466,468,470,472,474,476,478,480,482,484,486,488,"
"490,492,494,496,498,500,502,504,506,508,510,512,514,516,518,520,522");
done:
addr_policy_list_free(policy);
addr_policy_list_free(policy2);
addr_policy_list_free(policy3);
addr_policy_list_free(policy4);
addr_policy_list_free(policy5);
addr_policy_list_free(policy6);
addr_policy_list_free(policy7);
addr_policy_list_free(policy8);
addr_policy_list_free(policy9);
addr_policy_list_free(policy10);
addr_policy_list_free(policy11);
addr_policy_list_free(policy12);
tor_free(policy_str);
if (sm) {
SMARTLIST_FOREACH(sm, char *, s, tor_free(s));
smartlist_free(sm);
}
short_policy_free(short_parsed);
}
/** Helper: Check that policy_list contains address */
static int
test_policy_has_address_helper(const smartlist_t *policy_list,
const tor_addr_t *addr)
{
int found = 0;
tt_assert(policy_list);
tt_assert(addr);
SMARTLIST_FOREACH_BEGIN(policy_list, addr_policy_t*, p) {
if (tor_addr_eq(&p->addr, addr)) {
found = 1;
}
} SMARTLIST_FOREACH_END(p);
return found;
done:
return 0;
}
#define TEST_IPV4_ADDR (0x01020304)
#define TEST_IPV6_ADDR ("2002::abcd")
/** Run unit tests for rejecting the configured addresses on this exit relay
* using policies_parse_exit_policy_reject_private */
static void
test_policies_reject_exit_address(void *arg)
{
smartlist_t *policy = NULL;
tor_addr_t ipv4_addr, ipv6_addr;
smartlist_t *ipv4_list, *ipv6_list, *both_list, *dupl_list;
(void)arg;
tor_addr_from_ipv4h(&ipv4_addr, TEST_IPV4_ADDR);
tor_addr_parse(&ipv6_addr, TEST_IPV6_ADDR);
ipv4_list = smartlist_new();
ipv6_list = smartlist_new();
both_list = smartlist_new();
dupl_list = smartlist_new();
smartlist_add(ipv4_list, &ipv4_addr);
smartlist_add(both_list, &ipv4_addr);
smartlist_add(dupl_list, &ipv4_addr);
smartlist_add(dupl_list, &ipv4_addr);
smartlist_add(dupl_list, &ipv4_addr);
smartlist_add(ipv6_list, &ipv6_addr);
smartlist_add(both_list, &ipv6_addr);
smartlist_add(dupl_list, &ipv6_addr);
smartlist_add(dupl_list, &ipv6_addr);
/* IPv4-Only Exits */
/* test that IPv4 addresses are rejected on an IPv4-only exit */
policies_parse_exit_policy_reject_private(&policy, 0, ipv4_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
addr_policy_list_free(policy);
policy = NULL;
/* test that IPv6 addresses are NOT rejected on an IPv4-only exit
* (all IPv6 addresses are rejected by policies_parse_exit_policy_internal
* on IPv4-only exits, so policies_parse_exit_policy_reject_private doesn't
* need to do anything) */
policies_parse_exit_policy_reject_private(&policy, 0, ipv6_list, 0, 0);
tt_assert(policy == NULL);
/* test that only IPv4 addresses are rejected on an IPv4-only exit */
policies_parse_exit_policy_reject_private(&policy, 0, both_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
addr_policy_list_free(policy);
policy = NULL;
/* Test that lists with duplicate entries produce the same results */
policies_parse_exit_policy_reject_private(&policy, 0, dupl_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
addr_policy_list_free(policy);
policy = NULL;
/* IPv4/IPv6 Exits */
/* test that IPv4 addresses are rejected on an IPv4/IPv6 exit */
policies_parse_exit_policy_reject_private(&policy, 1, ipv4_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
addr_policy_list_free(policy);
policy = NULL;
/* test that IPv6 addresses are rejected on an IPv4/IPv6 exit */
policies_parse_exit_policy_reject_private(&policy, 1, ipv6_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv6_addr));
addr_policy_list_free(policy);
policy = NULL;
/* test that IPv4 and IPv6 addresses are rejected on an IPv4/IPv6 exit */
policies_parse_exit_policy_reject_private(&policy, 1, both_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 2);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
tt_assert(test_policy_has_address_helper(policy, &ipv6_addr));
addr_policy_list_free(policy);
policy = NULL;
/* Test that lists with duplicate entries produce the same results */
policies_parse_exit_policy_reject_private(&policy, 1, dupl_list, 0, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 2);
tt_assert(test_policy_has_address_helper(policy, &ipv4_addr));
tt_assert(test_policy_has_address_helper(policy, &ipv6_addr));
addr_policy_list_free(policy);
policy = NULL;
done:
addr_policy_list_free(policy);
smartlist_free(ipv4_list);
smartlist_free(ipv6_list);
smartlist_free(both_list);
smartlist_free(dupl_list);
}
static smartlist_t *test_configured_ports = NULL;
/** Returns test_configured_ports */
static const smartlist_t *
mock_get_configured_ports(void)
{
return test_configured_ports;
}
/** Run unit tests for rejecting publicly routable configured port addresses
* on this exit relay using policies_parse_exit_policy_reject_private */
static void
test_policies_reject_port_address(void *arg)
{
smartlist_t *policy = NULL;
port_cfg_t *ipv4_port = NULL;
port_cfg_t *ipv6_port = NULL;
(void)arg;
test_configured_ports = smartlist_new();
ipv4_port = port_cfg_new(0);
tor_addr_from_ipv4h(&ipv4_port->addr, TEST_IPV4_ADDR);
smartlist_add(test_configured_ports, ipv4_port);
ipv6_port = port_cfg_new(0);
tor_addr_parse(&ipv6_port->addr, TEST_IPV6_ADDR);
smartlist_add(test_configured_ports, ipv6_port);
MOCK(get_configured_ports, mock_get_configured_ports);
/* test that an IPv4 port is rejected on an IPv4-only exit, but an IPv6 port
* is NOT rejected (all IPv6 addresses are rejected by
* policies_parse_exit_policy_internal on IPv4-only exits, so
* policies_parse_exit_policy_reject_private doesn't need to do anything
* with IPv6 addresses on IPv4-only exits) */
policies_parse_exit_policy_reject_private(&policy, 0, NULL, 0, 1);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 1);
tt_assert(test_policy_has_address_helper(policy, &ipv4_port->addr));
addr_policy_list_free(policy);
policy = NULL;
/* test that IPv4 and IPv6 ports are rejected on an IPv4/IPv6 exit */
policies_parse_exit_policy_reject_private(&policy, 1, NULL, 0, 1);
tt_assert(policy);
tt_assert(smartlist_len(policy) == 2);
tt_assert(test_policy_has_address_helper(policy, &ipv4_port->addr));
tt_assert(test_policy_has_address_helper(policy, &ipv6_port->addr));
addr_policy_list_free(policy);
policy = NULL;
done:
addr_policy_list_free(policy);
if (test_configured_ports) {
SMARTLIST_FOREACH(test_configured_ports,
port_cfg_t *, p, port_cfg_free(p));
smartlist_free(test_configured_ports);
test_configured_ports = NULL;
}
UNMOCK(get_configured_ports);
}
static smartlist_t *mock_ipv4_addrs = NULL;
static smartlist_t *mock_ipv6_addrs = NULL;
/* mock get_interface_address6_list, returning a deep copy of the template
* address list ipv4_interface_address_list or ipv6_interface_address_list */
static smartlist_t *
mock_get_interface_address6_list(int severity,
sa_family_t family,
int include_internal)
{
(void)severity;
(void)include_internal;
smartlist_t *clone_list = smartlist_new();
smartlist_t *template_list = NULL;
if (family == AF_INET) {
template_list = mock_ipv4_addrs;
} else if (family == AF_INET6) {
template_list = mock_ipv6_addrs;
} else {
return NULL;
}
tt_assert(template_list);
SMARTLIST_FOREACH_BEGIN(template_list, tor_addr_t *, src_addr) {
tor_addr_t *dest_addr = tor_malloc(sizeof(tor_addr_t));
memset(dest_addr, 0, sizeof(*dest_addr));
tor_addr_copy_tight(dest_addr, src_addr);
smartlist_add(clone_list, dest_addr);
} SMARTLIST_FOREACH_END(src_addr);
return clone_list;
done:
free_interface_address6_list(clone_list);
return NULL;
}
/** Run unit tests for rejecting publicly routable interface addresses on this
* exit relay using policies_parse_exit_policy_reject_private */
static void
test_policies_reject_interface_address(void *arg)
{
smartlist_t *policy = NULL;
smartlist_t *public_ipv4_addrs =
get_interface_address6_list(LOG_INFO, AF_INET, 0);
smartlist_t *public_ipv6_addrs =
get_interface_address6_list(LOG_INFO, AF_INET6, 0);
tor_addr_t ipv4_addr, ipv6_addr;
(void)arg;
/* test that no addresses are rejected when none are supplied/requested */
policies_parse_exit_policy_reject_private(&policy, 0, NULL, 0, 0);
tt_assert(policy == NULL);
/* test that only IPv4 interface addresses are rejected on an IPv4-only exit
* (and allow for duplicates)
*/
policies_parse_exit_policy_reject_private(&policy, 0, NULL, 1, 0);
if (policy) {
tt_assert(smartlist_len(policy) <= smartlist_len(public_ipv4_addrs));
addr_policy_list_free(policy);
policy = NULL;
}
/* test that IPv4 and IPv6 interface addresses are rejected on an IPv4/IPv6
* exit (and allow for duplicates) */
policies_parse_exit_policy_reject_private(&policy, 1, NULL, 1, 0);
if (policy) {
tt_assert(smartlist_len(policy) <= (smartlist_len(public_ipv4_addrs)
+ smartlist_len(public_ipv6_addrs)));
addr_policy_list_free(policy);
policy = NULL;
}
/* Now do it all again, but mocked */
tor_addr_from_ipv4h(&ipv4_addr, TEST_IPV4_ADDR);
mock_ipv4_addrs = smartlist_new();
smartlist_add(mock_ipv4_addrs, (void *)&ipv4_addr);
tor_addr_parse(&ipv6_addr, TEST_IPV6_ADDR);
mock_ipv6_addrs = smartlist_new();
smartlist_add(mock_ipv6_addrs, (void *)&ipv6_addr);
MOCK(get_interface_address6_list, mock_get_interface_address6_list);
/* test that no addresses are rejected when none are supplied/requested */
policies_parse_exit_policy_reject_private(&policy, 0, NULL, 0, 0);
tt_assert(policy == NULL);
/* test that only IPv4 interface addresses are rejected on an IPv4-only exit
*/
policies_parse_exit_policy_reject_private(&policy, 0, NULL, 1, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == smartlist_len(mock_ipv4_addrs));
addr_policy_list_free(policy);
policy = NULL;
/* test that IPv4 and IPv6 interface addresses are rejected on an IPv4/IPv6
* exit */
policies_parse_exit_policy_reject_private(&policy, 1, NULL, 1, 0);
tt_assert(policy);
tt_assert(smartlist_len(policy) == (smartlist_len(mock_ipv4_addrs)
+ smartlist_len(mock_ipv6_addrs)));
addr_policy_list_free(policy);
policy = NULL;
done:
addr_policy_list_free(policy);
free_interface_address6_list(public_ipv4_addrs);
free_interface_address6_list(public_ipv6_addrs);
UNMOCK(get_interface_address6_list);
/* we don't use free_interface_address6_list on these lists because their
* address pointers are stack-based */
smartlist_free(mock_ipv4_addrs);
smartlist_free(mock_ipv6_addrs);
}
#undef TEST_IPV4_ADDR
#undef TEST_IPV6_ADDR
static void
test_dump_exit_policy_to_string(void *arg)
{
char *ep;
addr_policy_t *policy_entry;
int malformed_list = -1;
routerinfo_t *ri = tor_malloc_zero(sizeof(routerinfo_t));
(void)arg;
ri->policy_is_reject_star = 1;
ri->exit_policy = NULL; // expecting "reject *:*"
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("reject *:*",OP_EQ, ep);
tor_free(ep);
ri->exit_policy = smartlist_new();
ri->policy_is_reject_star = 0;
policy_entry = router_parse_addr_policy_item_from_string("accept *:*", -1,
&malformed_list);
smartlist_add(ri->exit_policy,policy_entry);
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("accept *:*",OP_EQ, ep);
tor_free(ep);
policy_entry = router_parse_addr_policy_item_from_string("reject *:25", -1,
&malformed_list);
smartlist_add(ri->exit_policy,policy_entry);
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("accept *:*\nreject *:25",OP_EQ, ep);
tor_free(ep);
policy_entry =
router_parse_addr_policy_item_from_string("reject 8.8.8.8:*", -1,
&malformed_list);
smartlist_add(ri->exit_policy,policy_entry);
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("accept *:*\nreject *:25\nreject 8.8.8.8:*",OP_EQ, ep);
tor_free(ep);
policy_entry =
router_parse_addr_policy_item_from_string("reject6 [FC00::]/7:*", -1,
&malformed_list);
smartlist_add(ri->exit_policy,policy_entry);
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("accept *:*\nreject *:25\nreject 8.8.8.8:*\n"
"reject6 [fc00::]/7:*",OP_EQ, ep);
tor_free(ep);
policy_entry =
router_parse_addr_policy_item_from_string("accept6 [c000::]/3:*", -1,
&malformed_list);
smartlist_add(ri->exit_policy,policy_entry);
ep = router_dump_exit_policy_to_string(ri,1,1);
tt_str_op("accept *:*\nreject *:25\nreject 8.8.8.8:*\n"
"reject6 [fc00::]/7:*\naccept6 [c000::]/3:*",OP_EQ, ep);
done:
if (ri->exit_policy) {
SMARTLIST_FOREACH(ri->exit_policy, addr_policy_t *,
entry, addr_policy_free(entry));
smartlist_free(ri->exit_policy);
}
tor_free(ri);
tor_free(ep);
}
static routerinfo_t *mock_desc_routerinfo = NULL;
static const routerinfo_t *
mock_router_get_my_routerinfo(void)
{
return mock_desc_routerinfo;
}
#define DEFAULT_POLICY_STRING "reject *:*"
#define TEST_IPV4_ADDR (0x02040608)
#define TEST_IPV6_ADDR ("2003::ef01")
static or_options_t mock_options;
static const or_options_t *
mock_get_options(void)
{
return &mock_options;
}
/** Run unit tests for generating summary lines of exit policies */
static void
test_policies_getinfo_helper_policies(void *arg)
{
(void)arg;
int rv = 0;
size_t ipv4_len = 0, ipv6_len = 0;
char *answer = NULL;
const char *errmsg = NULL;
routerinfo_t mock_my_routerinfo;
memset(&mock_my_routerinfo, 0, sizeof(mock_my_routerinfo));
rv = getinfo_helper_policies(NULL, "exit-policy/default", &answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/default",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tor_free(answer);
memset(&mock_my_routerinfo, 0, sizeof(routerinfo_t));
MOCK(router_get_my_routerinfo, mock_router_get_my_routerinfo);
mock_my_routerinfo.exit_policy = smartlist_new();
mock_desc_routerinfo = &mock_my_routerinfo;
memset(&mock_options, 0, sizeof(or_options_t));
MOCK(get_options, mock_get_options);
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/relay",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) == 0);
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/ipv4", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
ipv4_len = strlen(answer);
tt_assert(ipv4_len == 0 || ipv4_len == strlen(DEFAULT_POLICY_STRING));
tt_assert(ipv4_len == 0 || !strcasecmp(answer, DEFAULT_POLICY_STRING));
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/ipv6", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
ipv6_len = strlen(answer);
tt_assert(ipv6_len == 0 || ipv6_len == strlen(DEFAULT_POLICY_STRING));
tt_assert(ipv6_len == 0 || !strcasecmp(answer, DEFAULT_POLICY_STRING));
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/full", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
/* It's either empty or it's the default */
tt_assert(strlen(answer) == 0 || !strcasecmp(answer, DEFAULT_POLICY_STRING));
tor_free(answer);
mock_my_routerinfo.addr = TEST_IPV4_ADDR;
tor_addr_parse(&mock_my_routerinfo.ipv6_addr, TEST_IPV6_ADDR);
append_exit_policy_string(&mock_my_routerinfo.exit_policy, "accept *4:*");
append_exit_policy_string(&mock_my_routerinfo.exit_policy, "reject *6:*");
mock_options.IPv6Exit = 1;
tor_addr_from_ipv4h(
&mock_options.OutboundBindAddresses[OUTBOUND_ADDR_EXIT][0],
TEST_IPV4_ADDR);
tor_addr_parse(
&mock_options.OutboundBindAddresses[OUTBOUND_ADDR_EXIT][1],
TEST_IPV6_ADDR);
mock_options.ExitPolicyRejectPrivate = 1;
mock_options.ExitPolicyRejectLocalInterfaces = 1;
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/relay",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tor_free(answer);
mock_options.ExitPolicyRejectPrivate = 1;
mock_options.ExitPolicyRejectLocalInterfaces = 0;
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/relay",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tor_free(answer);
mock_options.ExitPolicyRejectPrivate = 0;
mock_options.ExitPolicyRejectLocalInterfaces = 1;
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/relay",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tor_free(answer);
mock_options.ExitPolicyRejectPrivate = 0;
mock_options.ExitPolicyRejectLocalInterfaces = 0;
rv = getinfo_helper_policies(NULL, "exit-policy/reject-private/relay",
&answer, &errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) == 0);
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/ipv4", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
ipv4_len = strlen(answer);
tt_assert(ipv4_len > 0);
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/ipv6", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
ipv6_len = strlen(answer);
tt_assert(ipv6_len > 0);
tor_free(answer);
rv = getinfo_helper_policies(NULL, "exit-policy/full", &answer,
&errmsg);
tt_assert(rv == 0);
tt_assert(answer != NULL);
tt_assert(strlen(answer) > 0);
tt_assert(strlen(answer) == ipv4_len + ipv6_len + 1);
tor_free(answer);
done:
tor_free(answer);
UNMOCK(get_options);
UNMOCK(router_get_my_routerinfo);
addr_policy_list_free(mock_my_routerinfo.exit_policy);
}
#undef DEFAULT_POLICY_STRING
#undef TEST_IPV4_ADDR
#undef TEST_IPV6_ADDR
#define TEST_IPV4_ADDR_STR "1.2.3.4"
#define TEST_IPV6_ADDR_STR "[1002::4567]"
#define REJECT_IPv4_FINAL_STR "reject 0.0.0.0/0:*"
#define REJECT_IPv6_FINAL_STR "reject [::]/0:*"
#define OTHER_IPV4_ADDR_STR "6.7.8.9"
#define OTHER_IPV6_ADDR_STR "[afff::]"
/** Run unit tests for fascist_firewall_allows_address */
static void
test_policies_fascist_firewall_allows_address(void *arg)
{
(void)arg;
tor_addr_t ipv4_addr, ipv6_addr, r_ipv4_addr, r_ipv6_addr;
tor_addr_t n_ipv4_addr, n_ipv6_addr;
const uint16_t port = 1234;
smartlist_t *policy = NULL;
smartlist_t *e_policy = NULL;
addr_policy_t *item = NULL;
int malformed_list = 0;
/* Setup the options and the items in the policies */
memset(&mock_options, 0, sizeof(or_options_t));
MOCK(get_options, mock_get_options);
policy = smartlist_new();
item = router_parse_addr_policy_item_from_string("accept "
TEST_IPV4_ADDR_STR ":*",
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(item);
tt_assert(!malformed_list);
smartlist_add(policy, item);
item = router_parse_addr_policy_item_from_string("accept "
TEST_IPV6_ADDR_STR,
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(item);
tt_assert(!malformed_list);
smartlist_add(policy, item);
/* Normally, policy_expand_unspec would do this for us */
item = router_parse_addr_policy_item_from_string(REJECT_IPv4_FINAL_STR,
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(item);
tt_assert(!malformed_list);
smartlist_add(policy, item);
item = router_parse_addr_policy_item_from_string(REJECT_IPv6_FINAL_STR,
ADDR_POLICY_ACCEPT,
&malformed_list);
tt_assert(item);
tt_assert(!malformed_list);
smartlist_add(policy, item);
item = NULL;
e_policy = smartlist_new();
/*
char *polstr = policy_dump_to_string(policy, 1, 1);
printf("%s\n", polstr);
tor_free(polstr);
*/
/* Parse the addresses */
tor_addr_parse(&ipv4_addr, TEST_IPV4_ADDR_STR);
tor_addr_parse(&ipv6_addr, TEST_IPV6_ADDR_STR);
tor_addr_parse(&r_ipv4_addr, OTHER_IPV4_ADDR_STR);
tor_addr_parse(&r_ipv6_addr, OTHER_IPV6_ADDR_STR);
tor_addr_make_null(&n_ipv4_addr, AF_INET);
tor_addr_make_null(&n_ipv6_addr, AF_INET6);
/* Test the function's address matching with IPv4 and IPv6 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 0;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Preferring IPv4 */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 1, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 1, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 1, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 1, 0)
== 0);
/* Preferring IPv6 */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 1, 1)
== 0);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 1, 1)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 1, 1)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 1, 1)
== 0);
/* Test the function's address matching with UseBridges on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 1;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Preferring IPv4 */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 1, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 1, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 1, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 1, 0)
== 0);
/* Preferring IPv6 */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 1, 1)
== 0);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 1, 1)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 1, 1)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 1, 1)
== 0);
/* bridge clients always use IPv6, regardless of ClientUseIPv6 */
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 0;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Test the function's address matching with IPv4 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 0;
mock_options.UseBridges = 0;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Test the function's address matching with IPv6 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 0;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 0;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Test the function's address matching with ClientUseIPv4 0.
* This means "use IPv6" regardless of the other settings. */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 0;
mock_options.ClientUseIPv6 = 0;
mock_options.UseBridges = 0;
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&r_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&r_ipv6_addr, port, policy, 0, 0)
== 0);
/* Test the function's address matching for unusual inputs */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 1;
/* NULL and tor_addr_is_null addresses are rejected */
tt_assert(fascist_firewall_allows_address(NULL, port, policy, 0, 0) == 0);
tt_assert(fascist_firewall_allows_address(&n_ipv4_addr, port, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&n_ipv6_addr, port, policy, 0, 0)
== 0);
/* zero ports are rejected */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, 0, policy, 0, 0)
== 0);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, 0, policy, 0, 0)
== 0);
/* NULL and empty policies accept everything */
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, NULL, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, NULL, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv4_addr, port, e_policy, 0, 0)
== 1);
tt_assert(fascist_firewall_allows_address(&ipv6_addr, port, e_policy, 0, 0)
== 1);
done:
addr_policy_free(item);
addr_policy_list_free(policy);
addr_policy_list_free(e_policy);
UNMOCK(get_options);
}
#undef REJECT_IPv4_FINAL_STR
#undef REJECT_IPv6_FINAL_STR
#undef OTHER_IPV4_ADDR_STR
#undef OTHER_IPV6_ADDR_STR
#define TEST_IPV4_OR_PORT 1234
#define TEST_IPV4_DIR_PORT 2345
#define TEST_IPV6_OR_PORT 61234
#define TEST_IPV6_DIR_PORT 62345
/* Check that fascist_firewall_choose_address_rs() returns the expected
* results. */
#define CHECK_CHOSEN_ADDR_RS(fake_rs, fw_connection, pref_only, expect_rv, \
expect_ap) \
STMT_BEGIN \
tor_addr_port_t chosen_rs_ap; \
tor_addr_make_null(&chosen_rs_ap.addr, AF_INET); \
chosen_rs_ap.port = 0; \
tt_int_op(fascist_firewall_choose_address_rs(&(fake_rs), \
(fw_connection), \
(pref_only), \
&chosen_rs_ap), \
OP_EQ, (expect_rv)); \
tt_assert(tor_addr_eq(&(expect_ap).addr, &chosen_rs_ap.addr)); \
tt_int_op((expect_ap).port, OP_EQ, chosen_rs_ap.port); \
STMT_END
/* Check that fascist_firewall_choose_address_node() returns the expected
* results. */
#define CHECK_CHOSEN_ADDR_NODE(fake_node, fw_connection, pref_only, \
expect_rv, expect_ap) \
STMT_BEGIN \
tor_addr_port_t chosen_node_ap; \
tor_addr_make_null(&chosen_node_ap.addr, AF_INET); \
chosen_node_ap.port = 0; \
tt_int_op(fascist_firewall_choose_address_node(&(fake_node), \
(fw_connection), \
(pref_only), \
&chosen_node_ap), \
OP_EQ, (expect_rv)); \
tt_assert(tor_addr_eq(&(expect_ap).addr, &chosen_node_ap.addr)); \
tt_int_op((expect_ap).port, OP_EQ, chosen_node_ap.port); \
STMT_END
/* Check that fascist_firewall_choose_address_rs and
* fascist_firewall_choose_address_node() both return the expected results. */
#define CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, fw_connection, pref_only, \
expect_rv, expect_ap) \
STMT_BEGIN \
CHECK_CHOSEN_ADDR_RS(fake_rs, fw_connection, pref_only, expect_rv, \
expect_ap); \
CHECK_CHOSEN_ADDR_NODE(fake_node, fw_connection, pref_only, expect_rv, \
expect_ap); \
STMT_END
/** Run unit tests for fascist_firewall_choose_address */
static void
test_policies_fascist_firewall_choose_address(void *arg)
{
(void)arg;
tor_addr_port_t ipv4_or_ap, ipv4_dir_ap, ipv6_or_ap, ipv6_dir_ap;
tor_addr_port_t n_ipv4_ap, n_ipv6_ap;
/* Setup the options */
memset(&mock_options, 0, sizeof(or_options_t));
MOCK(get_options, mock_get_options);
/* Parse the addresses */
tor_addr_parse(&ipv4_or_ap.addr, TEST_IPV4_ADDR_STR);
ipv4_or_ap.port = TEST_IPV4_OR_PORT;
tor_addr_parse(&ipv4_dir_ap.addr, TEST_IPV4_ADDR_STR);
ipv4_dir_ap.port = TEST_IPV4_DIR_PORT;
tor_addr_parse(&ipv6_or_ap.addr, TEST_IPV6_ADDR_STR);
ipv6_or_ap.port = TEST_IPV6_OR_PORT;
tor_addr_parse(&ipv6_dir_ap.addr, TEST_IPV6_ADDR_STR);
ipv6_dir_ap.port = TEST_IPV6_DIR_PORT;
tor_addr_make_null(&n_ipv4_ap.addr, AF_INET);
n_ipv4_ap.port = 0;
tor_addr_make_null(&n_ipv6_ap.addr, AF_INET6);
n_ipv6_ap.port = 0;
/* Sanity check fascist_firewall_choose_address with IPv4 and IPv6 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 0;
/* Prefer IPv4 */
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 1,
FIREWALL_OR_CONNECTION, 0, 0)
== &ipv4_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 1,
FIREWALL_OR_CONNECTION, 1, 0)
== &ipv4_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_dir_ap, &ipv6_dir_ap, 1,
FIREWALL_DIR_CONNECTION, 0, 0)
== &ipv4_dir_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_dir_ap, &ipv6_dir_ap, 1,
FIREWALL_DIR_CONNECTION, 1, 0)
== &ipv4_dir_ap);
/* Prefer IPv6 */
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 0,
FIREWALL_OR_CONNECTION, 0, 1)
== &ipv6_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 0,
FIREWALL_OR_CONNECTION, 1, 1)
== &ipv6_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_dir_ap, &ipv6_dir_ap, 0,
FIREWALL_DIR_CONNECTION, 0, 1)
== &ipv6_dir_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_dir_ap, &ipv6_dir_ap, 0,
FIREWALL_DIR_CONNECTION, 1, 1)
== &ipv6_dir_ap);
/* Unusual inputs */
/* null preferred OR addresses */
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &n_ipv6_ap, 0,
FIREWALL_OR_CONNECTION, 0, 1)
== &ipv4_or_ap);
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &ipv6_or_ap, 1,
FIREWALL_OR_CONNECTION, 0, 0)
== &ipv6_or_ap);
/* null both OR addresses */
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &n_ipv6_ap, 0,
FIREWALL_OR_CONNECTION, 0, 1)
== NULL);
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &n_ipv6_ap, 1,
FIREWALL_OR_CONNECTION, 0, 0)
== NULL);
/* null preferred Dir addresses */
tt_assert(fascist_firewall_choose_address(&ipv4_dir_ap, &n_ipv6_ap, 0,
FIREWALL_DIR_CONNECTION, 0, 1)
== &ipv4_dir_ap);
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &ipv6_dir_ap, 1,
FIREWALL_DIR_CONNECTION, 0, 0)
== &ipv6_dir_ap);
/* null both Dir addresses */
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &n_ipv6_ap, 0,
FIREWALL_DIR_CONNECTION, 0, 1)
== NULL);
tt_assert(fascist_firewall_choose_address(&n_ipv4_ap, &n_ipv6_ap, 1,
FIREWALL_DIR_CONNECTION, 0, 0)
== NULL);
/* Prefer IPv4 but want IPv6 (contradictory) */
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 0,
FIREWALL_OR_CONNECTION, 0, 0)
== &ipv4_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 0,
FIREWALL_OR_CONNECTION, 1, 0)
== &ipv4_or_ap);
/* Prefer IPv6 but want IPv4 (contradictory) */
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 1,
FIREWALL_OR_CONNECTION, 0, 1)
== &ipv6_or_ap);
tt_assert(fascist_firewall_choose_address(&ipv4_or_ap, &ipv6_or_ap, 1,
FIREWALL_OR_CONNECTION, 1, 1)
== &ipv6_or_ap);
/* Make a fake rs. There will be no corresponding node.
* This is what happens when there's no consensus and we're bootstrapping
* from authorities / fallbacks. */
routerstatus_t fake_rs;
memset(&fake_rs, 0, sizeof(routerstatus_t));
/* In a routerstatus, the OR and Dir addresses are the same */
fake_rs.addr = tor_addr_to_ipv4h(&ipv4_or_ap.addr);
fake_rs.or_port = ipv4_or_ap.port;
fake_rs.dir_port = ipv4_dir_ap.port;
tor_addr_copy(&fake_rs.ipv6_addr, &ipv6_or_ap.addr);
fake_rs.ipv6_orport = ipv6_or_ap.port;
/* In a routerstatus, the IPv4 and IPv6 DirPorts are the same.*/
ipv6_dir_ap.port = TEST_IPV4_DIR_PORT;
/* Make a fake node. Even though it contains the fake_rs, a lookup won't
* find the node from the rs, because they're not in the hash table. */
node_t fake_node;
memset(&fake_node, 0, sizeof(node_t));
fake_node.rs = &fake_rs;
/* Choose an address with IPv4 and IPv6 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
mock_options.UseBridges = 0;
/* Preferring IPv4 */
mock_options.ClientPreferIPv6ORPort = 0;
mock_options.ClientPreferIPv6DirPort = 0;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Auto (Preferring IPv4) */
mock_options.ClientPreferIPv6ORPort = -1;
mock_options.ClientPreferIPv6DirPort = -1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Preferring IPv6 */
mock_options.ClientPreferIPv6ORPort = 1;
mock_options.ClientPreferIPv6DirPort = 1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv6_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv6_dir_ap);
/* Preferring IPv4 OR / IPv6 Dir */
mock_options.ClientPreferIPv6ORPort = 0;
mock_options.ClientPreferIPv6DirPort = 1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv6_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv6_dir_ap);
/* Preferring IPv6 OR / IPv4 Dir */
mock_options.ClientPreferIPv6ORPort = 1;
mock_options.ClientPreferIPv6DirPort = 0;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Choose an address with UseBridges on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.UseBridges = 1;
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 1;
/* Preferring IPv4 */
mock_options.ClientPreferIPv6ORPort = 0;
mock_options.ClientPreferIPv6DirPort = 0;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Auto:
* - bridge clients prefer the configured bridge OR address from the node,
* (the configured address family sets node.ipv6_preferred)
* - other clients prefer IPv4 OR by default (see above),
* - all clients, including bridge clients, prefer IPv4 Dir by default.
*/
mock_options.ClientPreferIPv6ORPort = -1;
mock_options.ClientPreferIPv6DirPort = -1;
/* Simulate the initialisation of fake_node.ipv6_preferred with a bridge
* configured with an IPv4 address */
fake_node.ipv6_preferred = 0;
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 0, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 1, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Simulate the initialisation of fake_node.ipv6_preferred with a bridge
* configured with an IPv6 address */
fake_node.ipv6_preferred = 1;
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 0, 1, ipv6_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 1, 1, ipv6_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* When a rs has no node, it defaults to IPv4 under auto. */
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_OR_CONNECTION, 0, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_OR_CONNECTION, 1, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_DIR_CONNECTION, 0, 1, ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_DIR_CONNECTION, 1, 1, ipv4_dir_ap);
/* Preferring IPv6 */
mock_options.ClientPreferIPv6ORPort = 1;
mock_options.ClientPreferIPv6DirPort = 1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv6_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv6_dir_ap);
/* In the default configuration (Auto / IPv6 off), bridge clients should
* use both IPv4 and IPv6, but only prefer IPv6 for bridges configured with
* an IPv6 address, regardless of ClientUseIPv6. (See above.) */
mock_options.ClientUseIPv6 = 0;
mock_options.ClientPreferIPv6ORPort = -1;
mock_options.ClientPreferIPv6DirPort = -1;
/* Simulate the initialisation of fake_node.ipv6_preferred with a bridge
* configured with an IPv4 address */
fake_node.ipv6_preferred = 0;
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 0, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 1, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Simulate the initialisation of fake_node.ipv6_preferred with a bridge
* configured with an IPv6 address */
fake_node.ipv6_preferred = 1;
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 0, 1, ipv6_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_OR_CONNECTION, 1, 1, ipv6_or_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_NODE(fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* When a rs has no node, it defaults to IPv4 under auto. */
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_OR_CONNECTION, 0, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_OR_CONNECTION, 1, 1, ipv4_or_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_DIR_CONNECTION, 0, 1, ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RS(fake_rs, FIREWALL_DIR_CONNECTION, 1, 1, ipv4_dir_ap);
/* Choose an address with IPv4 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 1;
mock_options.ClientUseIPv6 = 0;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
/* Choose an address with IPv6 on */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 0;
mock_options.ClientUseIPv6 = 1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv6_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv6_dir_ap);
/* Choose an address with ClientUseIPv4 0.
* This means "use IPv6" regardless of the other settings. */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ClientUseIPv4 = 0;
mock_options.ClientUseIPv6 = 0;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv6_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv6_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv6_dir_ap);
/* Choose an address with ORPort_set 1 (server mode).
* This means "use IPv4" regardless of the other settings. */
memset(&mock_options, 0, sizeof(or_options_t));
mock_options.ORPort_set = 1;
mock_options.ClientUseIPv4 = 0;
mock_options.ClientUseIPv6 = 1;
mock_options.ClientPreferIPv6ORPort = 1;
mock_options.ClientPreferIPv6DirPort = 1;
/* Simulate the initialisation of fake_node.ipv6_preferred */
fake_node.ipv6_preferred = fascist_firewall_prefer_ipv6_orport(
&mock_options);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 0, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_OR_CONNECTION, 1, 1,
ipv4_or_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 0, 1,
ipv4_dir_ap);
CHECK_CHOSEN_ADDR_RN(fake_rs, fake_node, FIREWALL_DIR_CONNECTION, 1, 1,
ipv4_dir_ap);
done:
UNMOCK(get_options);
}
#undef TEST_IPV4_ADDR_STR
#undef TEST_IPV6_ADDR_STR
#undef TEST_IPV4_OR_PORT
#undef TEST_IPV4_DIR_PORT
#undef TEST_IPV6_OR_PORT
#undef TEST_IPV6_DIR_PORT
#undef CHECK_CHOSEN_ADDR_RS
#undef CHECK_CHOSEN_ADDR_NODE
#undef CHECK_CHOSEN_ADDR_RN
struct testcase_t policy_tests[] = {
{ "router_dump_exit_policy_to_string", test_dump_exit_policy_to_string, 0,
NULL, NULL },
{ "general", test_policies_general, 0, NULL, NULL },
{ "getinfo_helper_policies", test_policies_getinfo_helper_policies, 0, NULL,
NULL },
{ "reject_exit_address", test_policies_reject_exit_address, 0, NULL, NULL },
{ "reject_interface_address", test_policies_reject_interface_address, 0,
NULL, NULL },
{ "reject_port_address", test_policies_reject_port_address, 0, NULL, NULL },
{ "fascist_firewall_allows_address",
test_policies_fascist_firewall_allows_address, 0, NULL, NULL },
{ "fascist_firewall_choose_address",
test_policies_fascist_firewall_choose_address, 0, NULL, NULL },
END_OF_TESTCASES
};
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