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Merge branch 'tor-gitlab/mr/254' into maint-0.3.5

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This commit is contained in:
David Goulet 2021-01-28 12:10:39 -05:00
commit 1bdccc03a9
13 changed files with 122 additions and 65 deletions
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5
changes/ticket40237 Normal file
View File

@ -0,0 +1,5 @@
o Major bugfixes (onion service v3):
- Stop requiring a live consensus for v3 clients and services to work. The
use of a reasonably live consensus will allow v3 to work properly in most
cases if the network failed to generate a consensus for more than 2 hours
in a row. Fixes bug 40237; bugfix on 0.3.5.1-alpha.

3
src/core/mainloop/mainloop.c
View File

@ -2511,7 +2511,8 @@ hs_service_callback(time_t now, const or_options_t *options)
/* We need to at least be able to build circuits and that we actually have
* a working network. */
if (!have_completed_a_circuit() || net_is_disabled() ||
networkstatus_get_live_consensus(now) == NULL) {
!networkstatus_get_reasonably_live_consensus(now,
usable_consensus_flavor())) {
goto end;
}

5
src/feature/hs/hs_cache.c
View File

@ -17,6 +17,7 @@
#include "feature/hs/hs_common.h"
#include "feature/hs/hs_client.h"
#include "feature/hs/hs_descriptor.h"
#include "feature/nodelist/microdesc.h"
#include "feature/nodelist/networkstatus.h"
#include "feature/rend/rendcache.h"
@ -673,7 +674,9 @@ cached_client_descriptor_has_expired(time_t now,
/* We use the current consensus time to see if we should expire this
* descriptor since we use consensus time for all other parts of the protocol
* as well (e.g. to build the blinded key and compute time periods). */
const networkstatus_t *ns = networkstatus_get_live_consensus(now);
const networkstatus_t *ns =
networkstatus_get_reasonably_live_consensus(now,
usable_consensus_flavor());
/* If we don't have a recent consensus, consider this entry expired since we
* will want to fetch a new HS desc when we get a live consensus. */
if (!ns) {

8
src/feature/hs/hs_client.c
View File

@ -29,6 +29,7 @@
#include "feature/hs/hs_descriptor.h"
#include "feature/hs/hs_ident.h"
#include "feature/nodelist/describe.h"
#include "feature/nodelist/microdesc.h"
#include "feature/nodelist/networkstatus.h"
#include "feature/nodelist/nodelist.h"
#include "feature/nodelist/routerset.h"
@ -1181,9 +1182,10 @@ can_client_refetch_desc(const ed25519_public_key_t *identity_pk,
goto cannot;
}
/* Without a live consensus we can't do any client actions. It is needed to
* compute the hashring for a service. */
if (!networkstatus_get_live_consensus(approx_time())) {
/* Without a usable consensus we can't do any client actions. It is needed
* to compute the hashring for a service. */
if (!networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor())) {
log_info(LD_REND, "Can't fetch descriptor for service %s because we "
"are missing a live consensus. Stalling connection.",
safe_str_client(ed25519_fmt(identity_pk)));

12
src/feature/hs/hs_common.c
View File

@ -25,6 +25,7 @@
#include "feature/hs/hs_service.h"
#include "feature/hs_common/shared_random_client.h"
#include "feature/nodelist/describe.h"
#include "feature/nodelist/microdesc.h"
#include "feature/nodelist/networkstatus.h"
#include "feature/nodelist/nodelist.h"
#include "feature/nodelist/routerset.h"
@ -272,7 +273,9 @@ hs_get_time_period_num(time_t now)
if (now != 0) {
current_time = now;
} else {
networkstatus_t *ns = networkstatus_get_live_consensus(approx_time());
networkstatus_t *ns =
networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor());
current_time = ns ? ns->valid_after : approx_time();
}
@ -1098,7 +1101,8 @@ hs_in_period_between_tp_and_srv,(const networkstatus_t *consensus, time_t now))
time_t srv_start_time, tp_start_time;
if (!consensus) {
consensus = networkstatus_get_live_consensus(now);
consensus = networkstatus_get_reasonably_live_consensus(now,
usable_consensus_flavor());
if (!consensus) {
return 0;
}
@ -1343,7 +1347,9 @@ hs_get_responsible_hsdirs(const ed25519_public_key_t *blinded_pk,
sorted_nodes = smartlist_new();
/* Make sure we actually have a live consensus */
networkstatus_t *c = networkstatus_get_live_consensus(approx_time());
networkstatus_t *c =
networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor());
if (!c || smartlist_len(c->routerstatus_list) == 0) {
log_warn(LD_REND, "No live consensus so we can't get the responsible "
"hidden service directories.");

7
src/feature/hs/hs_service.c
View File

@ -23,6 +23,7 @@
#include "feature/hs_common/shared_random_client.h"
#include "feature/keymgt/loadkey.h"
#include "feature/nodelist/describe.h"
#include "feature/nodelist/microdesc.h"
#include "feature/nodelist/networkstatus.h"
#include "feature/nodelist/nickname.h"
#include "feature/nodelist/node_select.h"
@ -2500,7 +2501,8 @@ should_rotate_descriptors(hs_service_t *service, time_t now)
tor_assert(service);
ns = networkstatus_get_live_consensus(now);
ns = networkstatus_get_reasonably_live_consensus(now,
usable_consensus_flavor());
if (ns == NULL) {
goto no_rotation;
}
@ -3100,7 +3102,8 @@ should_service_upload_descriptor(const hs_service_t *service,
}
/* Don't upload desc if we don't have a live consensus */
if (!networkstatus_get_live_consensus(now)) {
if (!networkstatus_get_reasonably_live_consensus(now,
usable_consensus_flavor())) {
goto cannot;
}

23
src/feature/hs_common/shared_random_client.c
View File

@ -13,6 +13,7 @@
#include "app/config/config.h"
#include "feature/dircommon/voting_schedule.h"
#include "feature/nodelist/microdesc.h"
#include "feature/nodelist/networkstatus.h"
#include "lib/encoding/binascii.h"
@ -37,7 +38,9 @@ int
get_voting_interval(void)
{
int interval;
networkstatus_t *consensus = networkstatus_get_live_consensus(time(NULL));
networkstatus_t *consensus =
networkstatus_get_reasonably_live_consensus(time(NULL),
usable_consensus_flavor());
if (consensus) {
interval = (int)(consensus->fresh_until - consensus->valid_after);
@ -142,7 +145,8 @@ sr_get_current(const networkstatus_t *ns)
if (ns) {
consensus = ns;
} else {
consensus = networkstatus_get_live_consensus(approx_time());
consensus = networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor());
}
/* Ideally we would never be asked for an SRV without a live consensus. Make
* sure this assumption is correct. */
@ -165,7 +169,8 @@ sr_get_previous(const networkstatus_t *ns)
if (ns) {
consensus = ns;
} else {
consensus = networkstatus_get_live_consensus(approx_time());
consensus = networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor());
}
/* Ideally we would never be asked for an SRV without a live consensus. Make
* sure this assumption is correct. */
@ -237,10 +242,14 @@ sr_state_get_start_time_of_current_protocol_run(void)
int voting_interval = get_voting_interval();
time_t beginning_of_curr_round;
/* This function is not used for voting purposes, so if we have a live
consensus, use its valid-after as the beginning of the current round,
otherwise resort to the voting schedule which should always exist. */
networkstatus_t *ns = networkstatus_get_live_consensus(approx_time());
/* This function is not used for voting purposes, so if we have a reasonably
* live consensus, use its valid-after as the beginning of the current
* round. If we have no consensus but we're an authority, use our own
* schedule. Otherwise, try using our view of the voting interval to figure
* out when the current round _should_ be starting. */
networkstatus_t *ns =
networkstatus_get_reasonably_live_consensus(approx_time(),
usable_consensus_flavor());
if (ns) {
beginning_of_curr_round = ns->valid_after;
} else {

2
src/feature/nodelist/nodelist.c
View File

@ -361,7 +361,7 @@ node_set_hsdir_index(node_t *node, const networkstatus_t *ns)
tor_assert(node);
tor_assert(ns);
if (!networkstatus_is_live(ns, now)) {
if (!networkstatus_consensus_reasonably_live(ns, now)) {
static struct ratelim_t live_consensus_ratelim = RATELIM_INIT(30 * 60);
log_fn_ratelim(&live_consensus_ratelim, LOG_INFO, LD_GENERAL,
"Not setting hsdir index with a non-live consensus.");

7
src/test/test_hs_cache.c
View File

@ -443,9 +443,10 @@ test_hsdir_revision_counter_check(void *arg)
static networkstatus_t mock_ns;
static networkstatus_t *
mock_networkstatus_get_live_consensus(time_t now)
mock_networkstatus_get_reasonably_live_consensus(time_t now, int flavor)
{
(void) now;
(void) flavor;
return &mock_ns;
}
@ -466,8 +467,8 @@ test_client_cache(void *arg)
/* Initialize HSDir cache subsystem */
init_test();
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
/* Set consensus time */
parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",

36
src/test/test_hs_client.c
View File

@ -62,16 +62,18 @@ static networkstatus_t mock_ns;
/* Always return NULL. */
static networkstatus_t *
mock_networkstatus_get_live_consensus_false(time_t now)
mock_networkstatus_get_reasonably_live_consensus_false(time_t now, int flavor)
{
(void) now;
(void) flavor;
return NULL;
}
static networkstatus_t *
mock_networkstatus_get_live_consensus(time_t now)
mock_networkstatus_get_reasonably_live_consensus(time_t now, int flavor)
{
(void) now;
(void) flavor;
return &mock_ns;
}
@ -340,8 +342,8 @@ test_client_pick_intro(void *arg)
ed25519_keypair_t service_kp;
hs_descriptor_t *desc = NULL;
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
(void) arg;
@ -565,15 +567,15 @@ test_descriptor_fetch(void *arg)
get_options_mutable()->FetchHidServDescriptors = 1;
/* 2. We don't have a live consensus. */
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus_false);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus_false);
ret = hs_client_refetch_hsdesc(&service_pk);
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
tt_int_op(ret, OP_EQ, HS_CLIENT_FETCH_MISSING_INFO);
/* From now on, return a live consensus. */
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
/* 3. Not enough dir information. */
MOCK(router_have_minimum_dir_info,
@ -615,7 +617,7 @@ test_descriptor_fetch(void *arg)
done:
connection_free_minimal(ENTRY_TO_CONN(ec));
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
UNMOCK(router_have_minimum_dir_info);
hs_free_all();
}
@ -808,8 +810,8 @@ test_desc_has_arrived_cleanup(void *arg)
hs_init();
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
MOCK(connection_mark_unattached_ap_,
mock_connection_mark_unattached_ap_);
MOCK(router_have_minimum_dir_info,
@ -880,7 +882,7 @@ test_desc_has_arrived_cleanup(void *arg)
tor_free(desc_str);
hs_free_all();
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
UNMOCK(connection_mark_unattached_ap_);
UNMOCK(router_have_minimum_dir_info);
}
@ -900,8 +902,8 @@ test_close_intro_circuits_new_desc(void *arg)
/* This is needed because of the client cache expiration timestamp is based
* on having a consensus. See cached_client_descriptor_has_expired(). */
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
/* Set consensus time */
parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
@ -968,7 +970,7 @@ test_close_intro_circuits_new_desc(void *arg)
tt_int_op(ret, OP_EQ, 0);
tt_assert(encoded);
hs_cache_store_as_client(encoded, &service_kp.pubkey);
ret = hs_cache_store_as_client(encoded, &service_kp.pubkey);
tt_int_op(ret, OP_EQ, 0);
tor_free(encoded);
tt_assert(hs_cache_lookup_as_client(&service_kp.pubkey));
@ -983,7 +985,7 @@ test_close_intro_circuits_new_desc(void *arg)
hs_descriptor_free(desc1);
hs_descriptor_free(desc2);
hs_free_all();
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
}
struct testcase_t hs_client_tests[] = {

36
src/test/test_hs_common.c
View File

@ -359,9 +359,10 @@ mock_networkstatus_get_latest_consensus(void)
}
static networkstatus_t *
mock_networkstatus_get_live_consensus(time_t now)
mock_networkstatus_get_reasonably_live_consensus(time_t now, int flavor)
{
(void) now;
(void) flavor;
tt_assert(mock_ns);
@ -381,6 +382,8 @@ test_responsible_hsdirs(void *arg)
MOCK(networkstatus_get_latest_consensus,
mock_networkstatus_get_latest_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
ns = networkstatus_get_latest_consensus();
@ -417,6 +420,8 @@ test_responsible_hsdirs(void *arg)
smartlist_clear(ns->routerstatus_list);
networkstatus_vote_free(mock_ns);
cleanup_nodelist();
UNMOCK(networkstatus_get_reasonably_live_consensus);
}
static void
@ -466,6 +471,8 @@ test_desc_reupload_logic(void *arg)
hs_init();
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
MOCK(router_have_minimum_dir_info,
mock_router_have_minimum_dir_info);
MOCK(get_or_state,
@ -877,9 +884,11 @@ static smartlist_t *service_responsible_hsdirs = NULL;
static smartlist_t *client_responsible_hsdirs = NULL;
static networkstatus_t *
mock_networkstatus_get_live_consensus_service(time_t now)
mock_networkstatus_get_reasonably_live_consensus_service(time_t now,
int flavor)
{
(void) now;
(void) flavor;
if (mock_service_ns) {
return mock_service_ns;
@ -895,13 +904,14 @@ mock_networkstatus_get_live_consensus_service(time_t now)
static networkstatus_t *
mock_networkstatus_get_latest_consensus_service(void)
{
return mock_networkstatus_get_live_consensus_service(0);
return mock_networkstatus_get_reasonably_live_consensus_service(0, 0);
}
static networkstatus_t *
mock_networkstatus_get_live_consensus_client(time_t now)
mock_networkstatus_get_reasonably_live_consensus_client(time_t now, int flavor)
{
(void) now;
(void) flavor;
if (mock_client_ns) {
return mock_client_ns;
@ -917,7 +927,7 @@ mock_networkstatus_get_live_consensus_client(time_t now)
static networkstatus_t *
mock_networkstatus_get_latest_consensus_client(void)
{
return mock_networkstatus_get_live_consensus_client(0);
return mock_networkstatus_get_reasonably_live_consensus_client(0, 0);
}
/* Mock function because we are not trying to test the close circuit that does
@ -1377,8 +1387,8 @@ run_reachability_scenario(const reachability_cfg_t *cfg, int num_scenario)
* === Client setup ===
*/
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus_client);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus_client);
MOCK(networkstatus_get_latest_consensus,
mock_networkstatus_get_latest_consensus_client);
@ -1402,14 +1412,14 @@ run_reachability_scenario(const reachability_cfg_t *cfg, int num_scenario)
tt_int_op(smartlist_len(client_responsible_hsdirs), OP_EQ, 6);
UNMOCK(networkstatus_get_latest_consensus);
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
/*
* === Service setup ===
*/
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus_service);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus_service);
MOCK(networkstatus_get_latest_consensus,
mock_networkstatus_get_latest_consensus_service);
@ -1436,7 +1446,7 @@ run_reachability_scenario(const reachability_cfg_t *cfg, int num_scenario)
tt_int_op(smartlist_len(service_responsible_hsdirs), OP_EQ, 8);
UNMOCK(networkstatus_get_latest_consensus);
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
/* Some testing of the values we just got from the client and service. */
tt_mem_op(&client_blinded_pk, OP_EQ, &service_blinded_pk,
@ -1687,8 +1697,8 @@ test_client_service_hsdir_set_sync(void *arg)
MOCK(networkstatus_get_latest_consensus,
mock_networkstatus_get_latest_consensus);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
MOCK(get_or_state,
get_or_state_replacement);
MOCK(hs_desc_encode_descriptor,

21
src/test/test_hs_service.c
View File

@ -79,9 +79,10 @@
static networkstatus_t mock_ns;
static networkstatus_t *
mock_networkstatus_get_live_consensus(time_t now)
mock_networkstatus_get_reasonably_live_consensus(time_t now, int flavor)
{
(void) now;
(void) flavor;
return &mock_ns;
}
@ -1302,8 +1303,8 @@ test_rotate_descriptors(void *arg)
hs_init();
MOCK(get_or_state, get_or_state_replacement);
MOCK(circuit_mark_for_close_, mock_circuit_mark_for_close);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
/* Descriptor rotation happens with a consensus with a new SRV. */
@ -1387,7 +1388,7 @@ test_rotate_descriptors(void *arg)
hs_free_all();
UNMOCK(get_or_state);
UNMOCK(circuit_mark_for_close_);
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
}
/** Test building descriptors: picking intro points, setting up their link
@ -1408,8 +1409,8 @@ test_build_update_descriptors(void *arg)
MOCK(get_or_state,
get_or_state_replacement);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
dummy_state = tor_malloc_zero(sizeof(or_state_t));
@ -1633,8 +1634,8 @@ test_build_descriptors(void *arg)
MOCK(get_or_state,
get_or_state_replacement);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
dummy_state = tor_malloc_zero(sizeof(or_state_t));
@ -1714,8 +1715,8 @@ test_upload_descriptors(void *arg)
hs_init();
MOCK(get_or_state,
get_or_state_replacement);
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
dummy_state = tor_malloc_zero(sizeof(or_state_t));

22
src/test/test_shared_random.c
View File

@ -164,6 +164,15 @@ mock_networkstatus_get_live_consensus(time_t now)
return &mock_consensus;
}
/* Mock function to immediately return our local 'mock_consensus'. */
static networkstatus_t *
mock_networkstatus_get_reasonably_live_consensus(time_t now, int flavor)
{
(void) now;
(void) flavor;
return &mock_consensus;
}
static void
test_get_state_valid_until_time(void *arg)
{
@ -176,6 +185,8 @@ test_get_state_valid_until_time(void *arg)
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
&mock_consensus.fresh_until);
@ -232,7 +243,7 @@ test_get_state_valid_until_time(void *arg)
}
done:
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
}
/** Test the function that calculates the start time of the current SRV
@ -248,6 +259,8 @@ test_get_start_time_of_current_run(void *arg)
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
&mock_consensus.fresh_until);
@ -331,6 +344,7 @@ test_get_start_time_of_current_run(void *arg)
/* Next test is testing it without a consensus to use the testing voting
* interval . */
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
/* Now let's alter the voting schedule and check the correctness of the
* function. Voting interval of 10 seconds, means that an SRV protocol run
@ -362,8 +376,8 @@ test_get_start_time_functions(void *arg)
(void) arg;
int retval;
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
MOCK(networkstatus_get_reasonably_live_consensus,
mock_networkstatus_get_reasonably_live_consensus);
retval = parse_rfc1123_time("Mon, 20 Apr 2015 01:00:00 UTC",
&mock_consensus.fresh_until);
@ -384,7 +398,7 @@ test_get_start_time_functions(void *arg)
start_time_of_protocol_run);
done:
UNMOCK(networkstatus_get_live_consensus);
UNMOCK(networkstatus_get_reasonably_live_consensus);
}
static void