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Actually remember all the consensus types when we are done generating them.

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This commit is contained in:
Nick Mathewson 2009-10-13 17:06:01 -04:00
parent a19981725d
commit 851a980065
6 changed files with 269 additions and 140 deletions
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2
src/or/control.c
View File

@ -1506,7 +1506,7 @@ getinfo_helper_dir(control_connection_t *control_conn,
}
} else if (!strcmp(question, "dir/status-vote/current/consensus")) { /* v3 */
if (directory_caches_dir_info(get_options())) {
const cached_dir_t *consensus = dirserv_get_consensus();
const cached_dir_t *consensus = dirserv_get_consensus("ns");
if (consensus)
*answer = tor_strdup(consensus->dir);
}

2
src/or/directory.c
View File

@ -1623,7 +1623,7 @@ connection_dir_client_reached_eof(dir_connection_t *conn)
}
log_info(LD_DIR,"Received consensus directory (size %d) from server "
"'%s:%d'",(int) body_len, conn->_base.address, conn->_base.port);
if ((r=networkstatus_set_current_consensus(body, 0))<0) {
if ((r=networkstatus_set_current_consensus(body, "ns", 0))<0) {
log_fn(r<-1?LOG_WARN:LOG_INFO, LD_DIR,
"Unable to load consensus directory downloaded from "
"server '%s:%d'. I'll try again soon.",

48
src/or/dirserv.c
View File

@ -41,7 +41,7 @@ static time_t the_v2_networkstatus_is_dirty = 1;
static cached_dir_t *the_directory = NULL;
/** For authoritative directories: the current (v1) network status. */
static cached_dir_t the_runningrouters = { NULL, NULL, 0, 0, 0, -1 };
static cached_dir_t the_runningrouters;
static void directory_remove_invalid(void);
static cached_dir_t *dirserv_regenerate_directory(void);
@ -1211,14 +1211,14 @@ directory_too_idle_to_fetch_descriptors(or_options_t *options, time_t now)
static cached_dir_t *cached_directory = NULL;
/** The v1 runningrouters document we'll serve (as a cache or as an authority)
* if requested. */
static cached_dir_t cached_runningrouters = { NULL, NULL, 0, 0, 0, -1 };
static cached_dir_t cached_runningrouters;
/** Used for other dirservers' v2 network statuses. Map from hexdigest to
* cached_dir_t. */
static digestmap_t *cached_v2_networkstatus = NULL;
/** The v3 consensus network status that we're currently serving. */
static cached_dir_t *cached_v3_networkstatus = NULL;
/** Map from flavor name to the v3 consensuses that we're currently serving. */
static strmap_t *cached_consensuses = NULL;
/** Possibly replace the contents of <b>d</b> with the value of
* <b>directory</b> published on <b>when</b>, unless <b>when</b> is older than
@ -1386,17 +1386,26 @@ dirserv_set_cached_networkstatus_v2(const char *networkstatus,
}
}
/** Replace the v3 consensus networkstatus that we're serving with
* <b>networkstatus</b>, published at <b>published</b>. No validation is
* performed. */
/** Replace the v3 consensus networkstatus of type <b>flavor_name</b> that
* we're serving with <b>networkstatus</b>, published at <b>published</b>. No
* validation is performed. */
void
dirserv_set_cached_networkstatus_v3(const char *networkstatus,
time_t published)
dirserv_set_cached_consensus_networkstatus(const char *networkstatus,
const char *flavor_name,
const digests_t *digests,
time_t published)
{
if (cached_v3_networkstatus)
cached_dir_decref(cached_v3_networkstatus);
cached_v3_networkstatus = new_cached_dir(
tor_strdup(networkstatus), published);
cached_dir_t *new_networkstatus;
cached_dir_t *old_networkstatus;
if (!cached_consensuses)
cached_consensuses = strmap_new();
new_networkstatus = new_cached_dir(tor_strdup(networkstatus), published);
memcpy(&new_networkstatus->digests, digests, sizeof(digests_t));
old_networkstatus = strmap_set(cached_consensuses, flavor_name,
new_networkstatus);
if (old_networkstatus)
cached_dir_decref(old_networkstatus);
}
/** Remove any v2 networkstatus from the directory cache that was published
@ -1579,9 +1588,9 @@ dirserv_get_runningrouters(void)
/** Return the latest downloaded consensus networkstatus in encoded, signed,
* optionally compressed format, suitable for sending to clients. */
cached_dir_t *
dirserv_get_consensus(void)
dirserv_get_consensus(const char *flavor_name)
{
return cached_v3_networkstatus;
return strmap_get(cached_consensuses, flavor_name);
}
/** For authoritative directories: the current (v2) network status. */
@ -3130,8 +3139,8 @@ static cached_dir_t *
lookup_cached_dir_by_fp(const char *fp)
{
cached_dir_t *d = NULL;
if (tor_digest_is_zero(fp) && cached_v3_networkstatus)
d = cached_v3_networkstatus;
if (tor_digest_is_zero(fp) && cached_consensuses)
d = strmap_get(cached_consensuses, "ns");
else if (router_digest_is_me(fp) && the_v2_networkstatus)
d = the_v2_networkstatus;
else if (cached_v2_networkstatus)
@ -3467,6 +3476,9 @@ dirserv_free_all(void)
digestmap_free(cached_v2_networkstatus, _free_cached_dir);
cached_v2_networkstatus = NULL;
}
cached_dir_decref(cached_v3_networkstatus);
if (cached_consensuses) {
strmap_free(cached_consensuses, _free_cached_dir);
cached_consensuses = NULL;
}
}

35
src/or/dirvote.c
View File

@ -421,13 +421,13 @@ compute_routerstatus_consensus(smartlist_t *votes, int consensus_method,
microdesc_digest256_out) {
smartlist_t *digests = smartlist_create();
const char *best_microdesc_digest;
SMARTLIST_FOREACH(votes, vote_routerstatus_t *, rs, {
SMARTLIST_FOREACH_BEGIN(votes, vote_routerstatus_t *, rs) {
char d[DIGEST256_LEN];
if (compare_vote_rs(rs, most))
continue;
if (!vote_routerstatus_find_microdesc_hash(d, rs, consensus_method))
smartlist_add(digests, tor_memdup(d, sizeof(d)));
});
} SMARTLIST_FOREACH_END(rs);
smartlist_sort_digests256(digests);
best_microdesc_digest = smartlist_get_most_frequent_digest256(digests);
if (best_microdesc_digest)
@ -2602,20 +2602,25 @@ dirvote_add_signatures(const char *detached_signatures_body,
static int
dirvote_publish_consensus(void)
{
/* Can we actually publish it yet? */
if (!pending_consensuses[FLAV_NS].consensus ||
networkstatus_check_consensus_signature(
pending_consensuses[FLAV_NS].consensus, 1)<0) {
log_warn(LD_DIR, "Not enough info to publish pending consensus");
return -1;
}
int i;
/* XXXXXX NMNMNM */
if (networkstatus_set_current_consensus(
pending_consensuses[FLAV_NS].body, 0))
log_warn(LD_DIR, "Error publishing consensus");
else
log_notice(LD_DIR, "Consensus published.");
/* Now remember all the other consensuses as if we were a directory cache. */
for (i = 0; i < N_CONSENSUS_FLAVORS; ++i) {
pending_consensus_t *pending = &pending_consensuses[i];
const char *name;
name = networkstatus_get_flavor_name(i);
tor_assert(name);
if (!pending->consensus ||
networkstatus_check_consensus_signature(pending->consensus, 1)<0) {
log_warn(LD_DIR, "Not enough info to publish pending %s consensus",name);
continue;
}
if (networkstatus_set_current_consensus(pending->body, name, 0))
log_warn(LD_DIR, "Error publishing %s consensus", name);
else
log_notice(LD_DIR, "Published %s consensus", name);
}
return 0;
}

305
src/or/networkstatus.c
View File

@ -35,16 +35,22 @@ static networkstatus_t *current_consensus = NULL;
/** A v3 consensus networkstatus that we've received, but which we don't
* have enough certificates to be happy about. */
static networkstatus_t *consensus_waiting_for_certs = NULL;
/** The encoded version of consensus_waiting_for_certs. */
static char *consensus_waiting_for_certs_body = NULL;
/** When did we set the current value of consensus_waiting_for_certs? If this
* is too recent, we shouldn't try to fetch a new consensus for a little while,
* to give ourselves time to get certificates for this one. */
static time_t consensus_waiting_for_certs_set_at = 0;
/** Set to 1 if we've been holding on to consensus_waiting_for_certs so long
* that we should treat it as maybe being bad. */
static int consensus_waiting_for_certs_dl_failed = 0;
typedef struct consensus_waiting_for_certs_t {
/** The consensus itself. */
networkstatus_t *consensus;
/** The encoded version of the consensus, nul-terminated. */
char *body;
/** When did we set the current value of consensus_waiting_for_certs? If
* this is too recent, we shouldn't try to fetch a new consensus for a
* little while, to give ourselves time to get certificates for this one. */
time_t set_at;
/** Set to 1 if we've been holding on to it for so long we should maybe
* treat it as being bad. */
int dl_failed;
} consensus_waiting_for_certs_t;
static consensus_waiting_for_certs_t
consensus_waiting_for_certs[N_CONSENSUS_FLAVORS];
/** The last time we tried to download a networkstatus, or 0 for "never". We
* use this to rate-limit download attempts for directory caches (including
@ -56,7 +62,7 @@ static time_t last_networkstatus_download_attempted = 0;
* before the current consensus becomes invalid. */
static time_t time_to_download_next_consensus = 0;
/** Download status for the current consensus networkstatus. */
static download_status_t consensus_dl_status = { 0, 0, DL_SCHED_CONSENSUS };
static download_status_t consensus_dl_status[N_CONSENSUS_FLAVORS];
/** True iff we have logged a warning about this OR's version being older than
* listed by the authorities. */
@ -89,6 +95,7 @@ networkstatus_reset_warnings(void)
void
networkstatus_reset_download_failures(void)
{
int i;
const smartlist_t *networkstatus_v2_list = networkstatus_get_v2_list();
SMARTLIST_FOREACH(networkstatus_v2_list, networkstatus_v2_t *, ns,
SMARTLIST_FOREACH(ns->entries, routerstatus_t *, rs,
@ -97,7 +104,8 @@ networkstatus_reset_download_failures(void)
rs->need_to_mirror = 1;
}));;
download_status_reset(&consensus_dl_status);
for (i=0; i < N_CONSENSUS_FLAVORS; ++i)
download_status_reset(&consensus_dl_status[i]);
if (v2_download_status_map) {
digestmap_iter_t *iter;
digestmap_t *map = v2_download_status_map;
@ -170,7 +178,7 @@ router_reload_v2_networkstatus(void)
return 0;
}
/** Read the cached v3 consensus networkstatus from the disk. */
/** Read every cached v3 consensus networkstatus from the disk. */
int
router_reload_consensus_networkstatus(void)
{
@ -179,31 +187,46 @@ router_reload_consensus_networkstatus(void)
struct stat st;
or_options_t *options = get_options();
const unsigned int flags = NSSET_FROM_CACHE | NSSET_DONT_DOWNLOAD_CERTS;
int flav;
/* FFFF Suppress warnings if cached consensus is bad? */
filename = get_datadir_fname("cached-consensus");
s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL);
if (s) {
if (networkstatus_set_current_consensus(s, flags) < -1) {
log_warn(LD_FS, "Couldn't load consensus networkstatus from \"%s\"",
filename);
for (flav = 0; flav < N_CONSENSUS_FLAVORS; ++flav) {
char buf[128];
const char *flavor = networkstatus_get_flavor_name(flav);
if (flav == FLAV_NS) {
filename = get_datadir_fname("cached-consensus");
} else {
tor_snprintf(buf, sizeof(buf), "cached-%s-consensus", flavor);
filename = get_datadir_fname(buf);
}
tor_free(s);
}
tor_free(filename);
s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL);
if (s) {
if (networkstatus_set_current_consensus(s, flavor, flags) < -1) {
log_warn(LD_FS, "Couldn't load consensus %s networkstatus from \"%s\"",
flavor, filename);
}
tor_free(s);
}
tor_free(filename);
filename = get_datadir_fname("unverified-consensus");
s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL);
if (s) {
if (networkstatus_set_current_consensus(s,
if (flav == FLAV_NS) {
filename = get_datadir_fname("unverified-consensus");
} else {
tor_snprintf(buf, sizeof(buf), "unverified-%s-consensus", flavor);
filename = get_datadir_fname(buf);
}
s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL);
if (s) {
if (networkstatus_set_current_consensus(s, flavor,
flags|NSSET_WAS_WAITING_FOR_CERTS)) {
log_info(LD_FS, "Couldn't load consensus networkstatus from \"%s\"",
filename);
log_info(LD_FS, "Couldn't load consensus %s networkstatus from \"%s\"",
flavor, filename);
}
tor_free(s);
tor_free(s);
}
tor_free(filename);
}
tor_free(filename);
if (!current_consensus ||
(stat(options->FallbackNetworkstatusFile, &st)==0 &&
@ -211,7 +234,7 @@ router_reload_consensus_networkstatus(void)
s = read_file_to_str(options->FallbackNetworkstatusFile,
RFTS_IGNORE_MISSING, NULL);
if (s) {
if (networkstatus_set_current_consensus(s,
if (networkstatus_set_current_consensus(s, "ns",
flags|NSSET_ACCEPT_OBSOLETE)) {
log_info(LD_FS, "Couldn't load consensus networkstatus from \"%s\"",
options->FallbackNetworkstatusFile);
@ -1123,27 +1146,32 @@ static void
update_consensus_networkstatus_downloads(time_t now)
{
or_options_t *options = get_options();
int i;
if (!networkstatus_get_live_consensus(now))
time_to_download_next_consensus = now; /* No live consensus? Get one now!*/
if (time_to_download_next_consensus > now)
return; /* Wait until the current consensus is older. */
if (authdir_mode_v3(options))
return; /* Authorities never fetch a consensus */
if (!download_status_is_ready(&consensus_dl_status, now,
/* XXXXNM Microdescs: may need to download more types. */
if (!download_status_is_ready(&consensus_dl_status[FLAV_NS], now,
CONSENSUS_NETWORKSTATUS_MAX_DL_TRIES))
return; /* We failed downloading a consensus too recently. */
if (connection_get_by_type_purpose(CONN_TYPE_DIR,
DIR_PURPOSE_FETCH_CONSENSUS))
return; /* There's an in-progress download.*/
if (consensus_waiting_for_certs) {
/* XXXX make sure this doesn't delay sane downloads. */
if (consensus_waiting_for_certs_set_at + DELAY_WHILE_FETCHING_CERTS > now)
return; /* We're still getting certs for this one. */
else {
if (!consensus_waiting_for_certs_dl_failed) {
download_status_failed(&consensus_dl_status, 0);
consensus_waiting_for_certs_dl_failed=1;
for (i=0; i < N_CONSENSUS_FLAVORS; ++i) {
consensus_waiting_for_certs_t *waiting = &consensus_waiting_for_certs[i];
if (waiting->consensus) {
/* XXXX make sure this doesn't delay sane downloads. */
if (waiting->set_at + DELAY_WHILE_FETCHING_CERTS > now)
return; /* We're still getting certs for this one. */
else {
if (!waiting->dl_failed) {
download_status_failed(&consensus_dl_status[FLAV_NS], 0);
waiting->dl_failed=1;
}
}
}
}
@ -1159,7 +1187,8 @@ update_consensus_networkstatus_downloads(time_t now)
void
networkstatus_consensus_download_failed(int status_code)
{
download_status_failed(&consensus_dl_status, status_code);
/* XXXXNM Microdescs: may need to handle more types. */
download_status_failed(&consensus_dl_status[FLAV_NS], status_code);
/* Retry immediately, if appropriate. */
update_consensus_networkstatus_downloads(time(NULL));
}
@ -1265,10 +1294,14 @@ update_networkstatus_downloads(time_t now)
void
update_certificate_downloads(time_t now)
{
if (consensus_waiting_for_certs)
authority_certs_fetch_missing(consensus_waiting_for_certs, now);
else
authority_certs_fetch_missing(current_consensus, now);
int i;
for (i = 0; i < N_CONSENSUS_FLAVORS; ++i) {
if (consensus_waiting_for_certs[i].consensus)
authority_certs_fetch_missing(consensus_waiting_for_certs[i].consensus,
now);
}
authority_certs_fetch_missing(current_consensus, now);
}
/** Return 1 if we have a consensus but we don't have enough certificates
@ -1276,7 +1309,8 @@ update_certificate_downloads(time_t now)
int
consensus_is_waiting_for_certs(void)
{
return consensus_waiting_for_certs ? 1 : 0;
return consensus_waiting_for_certs[USABLE_CONSENSUS_FLAVOR].consensus
? 1 : 0;
}
/** Return the network status with a given identity digest. */
@ -1445,16 +1479,29 @@ networkstatus_copy_old_consensus_info(networkstatus_t *new_c,
* user, and -2 for more serious problems.
*/
int
networkstatus_set_current_consensus(const char *consensus, unsigned flags)
networkstatus_set_current_consensus(const char *consensus,
const char *flavor,
unsigned flags)
{
networkstatus_t *c;
networkstatus_t *c=NULL;
int r, result = -1;
time_t now = time(NULL);
char *unverified_fname = NULL, *consensus_fname = NULL;
int flav = networkstatus_parse_flavor_name(flavor);
const unsigned from_cache = flags & NSSET_FROM_CACHE;
const unsigned was_waiting_for_certs = flags & NSSET_WAS_WAITING_FOR_CERTS;
const unsigned dl_certs = !(flags & NSSET_DONT_DOWNLOAD_CERTS);
const unsigned accept_obsolete = flags & NSSET_ACCEPT_OBSOLETE;
const unsigned require_flavor = flags & NSSET_REQUIRE_FLAVOR;
const digests_t *current_digests = NULL;
consensus_waiting_for_certs_t *waiting = NULL;
time_t current_valid_after = 0;
if (flav < 0) {
/* XXXX we don't handle unrecognized flavors yet. */
log_warn(LD_BUG, "Unrecognized consensus flavor %s", flavor);
return -2;
}
/* Make sure it's parseable. */
c = networkstatus_parse_vote_from_string(consensus, NULL, NS_TYPE_CONSENSUS);
@ -1464,32 +1511,70 @@ networkstatus_set_current_consensus(const char *consensus, unsigned flags)
goto done;
}
if (c->flavor != flav) {
/* This wasn't the flavor we thought we were getting. */
if (require_flavor) {
log_warn(LD_DIR, "Got consensus with unexpected flavor %s (wanted %s)",
networkstatus_get_flavor_name(c->flavor), flavor);
goto done;
}
flav = c->flavor;
flavor = networkstatus_get_flavor_name(flav);
}
if (flav != USABLE_CONSENSUS_FLAVOR &&
!directory_caches_dir_info(get_options())) {
/* This consensus is totally boring to us: we won't use it, and we won't
* serve it. Drop it. */
result = -1;
goto done;
}
if (from_cache && !accept_obsolete &&
c->valid_until < now-OLD_ROUTER_DESC_MAX_AGE) {
/* XXX022 when we try to make fallbackconsensus work again, we should
* consider taking this out. Until then, believing obsolete consensuses
* is causing more harm than good. See also bug 887. */
log_info(LD_DIR, "Loaded an obsolete consensus. Discarding.");
log_info(LD_DIR, "Loaded an expired consensus. Discarding.");
goto done;
}
if (current_consensus &&
!memcmp(&c->digests, &current_consensus->digests, sizeof(c->digests))) {
if (!strcmp(flavor, "ns")) {
consensus_fname = get_datadir_fname("cached-consensus");
unverified_fname = get_datadir_fname("unverified-consensus");
if (current_consensus) {
current_digests = &current_consensus->digests;
current_valid_after = current_consensus->valid_after;
}
} else {
cached_dir_t *cur;
char buf[128];
tor_snprintf(buf, sizeof(buf), "cached-%s-consensus", flavor);
consensus_fname = get_datadir_fname(buf);
tor_snprintf(buf, sizeof(buf), "unverified-%s-consensus", flavor);
unverified_fname = get_datadir_fname(buf);
cur = dirserv_get_consensus(flavor);
if (cur) {
current_digests = &cur->digests;
current_valid_after = cur->published;
}
}
if (current_digests &&
!memcmp(&c->digests, current_digests, sizeof(c->digests))) {
/* We already have this one. That's a failure. */
log_info(LD_DIR, "Got a consensus we already have");
log_info(LD_DIR, "Got a %s consensus we already have", flavor);
goto done;
}
if (current_consensus && c->valid_after <= current_consensus->valid_after) {
if (current_valid_after && c->valid_after <= current_valid_after) {
/* We have a newer one. There's no point in accepting this one,
* even if it's great. */
log_info(LD_DIR, "Got a consensus at least as old as the one we have");
log_info(LD_DIR, "Got a %s consensus at least as old as the one we have",
flavor);
goto done;
}
consensus_fname = get_datadir_fname("cached-consensus");
unverified_fname = get_datadir_fname("unverified-consensus");
/* Make sure it's signed enough. */
if ((r=networkstatus_check_consensus_signature(c, 1))<0) {
if (r == -1) {
@ -1498,16 +1583,17 @@ networkstatus_set_current_consensus(const char *consensus, unsigned flags)
log_info(LD_DIR,
"Not enough certificates to check networkstatus consensus");
}
if (!current_consensus ||
c->valid_after > current_consensus->valid_after) {
if (consensus_waiting_for_certs)
networkstatus_vote_free(consensus_waiting_for_certs);
tor_free(consensus_waiting_for_certs_body);
consensus_waiting_for_certs = c;
if (!current_valid_after ||
c->valid_after > current_valid_after) {
waiting = &consensus_waiting_for_certs[flav];
if (waiting->consensus)
networkstatus_vote_free(waiting->consensus);
tor_free(waiting->body);
waiting->consensus = c;
c = NULL; /* Prevent free. */
consensus_waiting_for_certs_body = tor_strdup(consensus);
consensus_waiting_for_certs_set_at = now;
consensus_waiting_for_certs_dl_failed = 0;
waiting->body = tor_strdup(consensus);
waiting->set_at = now;
waiting->dl_failed = 0;
if (!from_cache) {
write_str_to_file(unverified_fname, consensus, 0);
}
@ -1536,56 +1622,65 @@ networkstatus_set_current_consensus(const char *consensus, unsigned flags)
}
}
if (!from_cache)
if (!from_cache && flav == USABLE_CONSENSUS_FLAVOR)
control_event_client_status(LOG_NOTICE, "CONSENSUS_ARRIVED");
/* Are we missing any certificates at all? */
if (r != 1 && dl_certs)
authority_certs_fetch_missing(c, now);
notify_control_networkstatus_changed(current_consensus, c);
if (flav == USABLE_CONSENSUS_FLAVOR) {
notify_control_networkstatus_changed(current_consensus, c);
if (current_consensus) {
networkstatus_copy_old_consensus_info(c, current_consensus);
networkstatus_vote_free(current_consensus);
if (current_consensus) {
networkstatus_copy_old_consensus_info(c, current_consensus);
networkstatus_vote_free(current_consensus);
}
}
if (consensus_waiting_for_certs &&
consensus_waiting_for_certs->valid_after <= c->valid_after) {
networkstatus_vote_free(consensus_waiting_for_certs);
consensus_waiting_for_certs = NULL;
if (consensus != consensus_waiting_for_certs_body)
tor_free(consensus_waiting_for_certs_body);
waiting = &consensus_waiting_for_certs[flav];
if (waiting->consensus &&
waiting->consensus->valid_after <= c->valid_after) {
networkstatus_vote_free(waiting->consensus);
waiting->consensus = NULL;
if (consensus != waiting->body)
tor_free(waiting->body);
else
consensus_waiting_for_certs_body = NULL;
consensus_waiting_for_certs_set_at = 0;
consensus_waiting_for_certs_dl_failed = 0;
waiting->body = NULL;
waiting->set_at = 0;
waiting->dl_failed = 0;
unlink(unverified_fname);
}
/* Reset the failure count only if this consensus is actually valid. */
if (c->valid_after <= now && now <= c->valid_until) {
download_status_reset(&consensus_dl_status);
download_status_reset(&consensus_dl_status[flav]);
} else {
if (!from_cache)
download_status_failed(&consensus_dl_status, 0);
download_status_failed(&consensus_dl_status[flav], 0);
}
current_consensus = c;
c = NULL; /* Prevent free. */
if (directory_caches_dir_info(get_options())) {
dirserv_set_cached_consensus_networkstatus(consensus,
flavor,
&c->digests,
current_valid_after);
}
update_consensus_networkstatus_fetch_time(now);
dirvote_recalculate_timing(get_options(), now);
routerstatus_list_update_named_server_map();
if (flav == USABLE_CONSENSUS_FLAVOR) {
current_consensus = c;
c = NULL; /* Prevent free. */
/* XXXXNM Microdescs: needs a non-ns variant. */
update_consensus_networkstatus_fetch_time(now);
dirvote_recalculate_timing(get_options(), now);
routerstatus_list_update_named_server_map();
}
if (!from_cache) {
write_str_to_file(consensus_fname, consensus, 0);
}
if (directory_caches_dir_info(get_options()))
dirserv_set_cached_networkstatus_v3(consensus,
current_consensus->valid_after);
if (ftime_definitely_before(now, current_consensus->valid_after)) {
char tbuf[ISO_TIME_LEN+1];
char dbuf[64];
@ -1616,13 +1711,17 @@ networkstatus_set_current_consensus(const char *consensus, unsigned flags)
void
networkstatus_note_certs_arrived(void)
{
if (consensus_waiting_for_certs) {
if (networkstatus_check_consensus_signature(
consensus_waiting_for_certs, 0)>=0) {
int i;
for (i=0; i<N_CONSENSUS_FLAVORS; ++i) {
consensus_waiting_for_certs_t *waiting = &consensus_waiting_for_certs[i];
if (!waiting->consensus)
continue;
if (networkstatus_check_consensus_signature(waiting->consensus, 0)>=0) {
if (!networkstatus_set_current_consensus(
consensus_waiting_for_certs_body,
waiting->body,
networkstatus_get_flavor_name(i),
NSSET_WAS_WAITING_FOR_CERTS)) {
tor_free(consensus_waiting_for_certs_body);
tor_free(waiting->body);
}
}
}
@ -2046,6 +2145,7 @@ getinfo_helper_networkstatus(control_connection_t *conn,
void
networkstatus_free_all(void)
{
int i;
if (networkstatus_v2_list) {
SMARTLIST_FOREACH(networkstatus_v2_list, networkstatus_v2_t *, ns,
networkstatus_v2_free(ns));
@ -2060,11 +2160,14 @@ networkstatus_free_all(void)
networkstatus_vote_free(current_consensus);
current_consensus = NULL;
}
if (consensus_waiting_for_certs) {
networkstatus_vote_free(consensus_waiting_for_certs);
consensus_waiting_for_certs = NULL;
for (i=0; i < N_CONSENSUS_FLAVORS; ++i) {
consensus_waiting_for_certs_t *waiting = &consensus_waiting_for_certs[i];
if (waiting->consensus) {
networkstatus_vote_free(waiting->consensus);
waiting->consensus = NULL;
}
tor_free(waiting->body);
}
tor_free(consensus_waiting_for_certs_body);
if (named_server_map) {
strmap_free(named_server_map, _tor_free);
}

17
src/or/or.h
View File

@ -1282,6 +1282,7 @@ typedef struct cached_dir_t {
size_t dir_len; /**< Length of <b>dir</b> (not counting its NUL). */
size_t dir_z_len; /**< Length of <b>dir_z</b>. */
time_t published; /**< When was this object published. */
digests_t digests; /**< Digests of this object (networkstatus only) */
int refcnt; /**< Reference count for this cached_dir_t. */
} cached_dir_t;
@ -1692,6 +1693,9 @@ typedef enum {
FLAV_MICRODESC = 1,
} consensus_flavor_t;
/** DOCDOC */
#define USABLE_CONSENSUS_FLAVOR FLAV_NS
/** DOCDOC */
#define N_CONSENSUS_FLAVORS ((int)(FLAV_MICRODESC)+1)
@ -3758,14 +3762,16 @@ int directory_too_idle_to_fetch_descriptors(or_options_t *options, time_t now);
void directory_set_dirty(void);
cached_dir_t *dirserv_get_directory(void);
cached_dir_t *dirserv_get_runningrouters(void);
cached_dir_t *dirserv_get_consensus(void);
cached_dir_t *dirserv_get_consensus(const char *flavor_name);
void dirserv_set_cached_directory(const char *directory, time_t when,
int is_running_routers);
void dirserv_set_cached_networkstatus_v2(const char *directory,
const char *identity,
time_t published);
void dirserv_set_cached_networkstatus_v3(const char *consensus,
time_t published);
void dirserv_set_cached_consensus_networkstatus(const char *consensus,
const char *flavor_name,
const digests_t *digests,
time_t published);
void dirserv_clear_old_networkstatuses(time_t cutoff);
void dirserv_clear_old_v1_info(time_t now);
void dirserv_get_networkstatus_v2(smartlist_t *result, const char *key);
@ -4194,7 +4200,10 @@ networkstatus_t *networkstatus_get_reasonably_live_consensus(time_t now);
#define NSSET_WAS_WAITING_FOR_CERTS 2
#define NSSET_DONT_DOWNLOAD_CERTS 4
#define NSSET_ACCEPT_OBSOLETE 8
int networkstatus_set_current_consensus(const char *consensus, unsigned flags);
#define NSSET_REQUIRE_FLAVOR 16
int networkstatus_set_current_consensus(const char *consensus,
const char *flavor,
unsigned flags);
void networkstatus_note_certs_arrived(void);
void routers_update_all_from_networkstatus(time_t now, int dir_version);
void routerstatus_list_update_from_consensus_networkstatus(time_t now);