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Refactor duplicated extrainfo checks into a common macro.
This patch refactors duplicated code, to check if a given router supports fetching the extra-info document, into a common macro called SKIP_MISSING_TRUSTED_EXTRAINFO.
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@ -1935,6 +1935,21 @@ router_picked_poor_directory_log(const routerstatus_t *rs)
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} \
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} \
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STMT_END
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STMT_END
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/* Common code used in the loop within router_pick_directory_server_impl and
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* router_pick_trusteddirserver_impl.
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*
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* Check if the given <b>identity</b> supports extrainfo. If not, skip further
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* checks.
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*/
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#define SKIP_MISSING_TRUSTED_EXTRAINFO(type, identity) \
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STMT_BEGIN \
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int is_trusted_extrainfo = router_digest_is_trusted_dir_type( \
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(identity), EXTRAINFO_DIRINFO); \
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if (((type) & EXTRAINFO_DIRINFO) && \
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!router_supports_extrainfo((identity), is_trusted_extrainfo)) \
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continue; \
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STMT_END
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/* When iterating through the routerlist, can OR address/port preference
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/* When iterating through the routerlist, can OR address/port preference
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* and reachability checks be skipped?
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* and reachability checks be skipped?
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*/
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*/
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@ -2007,7 +2022,7 @@ router_pick_directory_server_impl(dirinfo_type_t type, int flags,
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/* Find all the running dirservers we know about. */
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/* Find all the running dirservers we know about. */
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SMARTLIST_FOREACH_BEGIN(nodelist_get_list(), const node_t *, node) {
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SMARTLIST_FOREACH_BEGIN(nodelist_get_list(), const node_t *, node) {
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int is_trusted, is_trusted_extrainfo;
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int is_trusted;
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int is_overloaded;
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int is_overloaded;
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const routerstatus_t *status = node->rs;
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const routerstatus_t *status = node->rs;
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const country_t country = node->country;
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const country_t country = node->country;
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@ -2018,12 +2033,9 @@ router_pick_directory_server_impl(dirinfo_type_t type, int flags,
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continue;
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continue;
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if (requireother && router_digest_is_me(node->identity))
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if (requireother && router_digest_is_me(node->identity))
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continue;
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continue;
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is_trusted = router_digest_is_trusted_dir(node->identity);
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is_trusted_extrainfo = router_digest_is_trusted_dir_type(
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SKIP_MISSING_TRUSTED_EXTRAINFO(type, node->identity);
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node->identity, EXTRAINFO_DIRINFO);
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if ((type & EXTRAINFO_DIRINFO) &&
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!router_supports_extrainfo(node->identity, is_trusted_extrainfo))
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continue;
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#ifdef ENABLE_LEGACY_GUARD_ALGORITHM
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#ifdef ENABLE_LEGACY_GUARD_ALGORITHM
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/* Don't make the same node a guard twice */
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/* Don't make the same node a guard twice */
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if (for_guard && is_node_used_as_guard(node)) {
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if (for_guard && is_node_used_as_guard(node)) {
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@ -2051,6 +2063,7 @@ router_pick_directory_server_impl(dirinfo_type_t type, int flags,
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}
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}
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is_overloaded = status->last_dir_503_at + DIR_503_TIMEOUT > now;
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is_overloaded = status->last_dir_503_at + DIR_503_TIMEOUT > now;
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is_trusted = router_digest_is_trusted_dir(node->identity);
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/* Clients use IPv6 addresses if the server has one and the client
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/* Clients use IPv6 addresses if the server has one and the client
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* prefers IPv6.
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* prefers IPv6.
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@ -2182,11 +2195,9 @@ router_pick_trusteddirserver_impl(const smartlist_t *sourcelist,
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if (!d->is_running) continue;
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if (!d->is_running) continue;
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if ((type & d->type) == 0)
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if ((type & d->type) == 0)
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continue;
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continue;
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int is_trusted_extrainfo = router_digest_is_trusted_dir_type(
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d->digest, EXTRAINFO_DIRINFO);
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SKIP_MISSING_TRUSTED_EXTRAINFO(type, d->digest);
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if ((type & EXTRAINFO_DIRINFO) &&
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!router_supports_extrainfo(d->digest, is_trusted_extrainfo))
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continue;
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if (requireother && me && router_digest_is_me(d->digest))
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if (requireother && me && router_digest_is_me(d->digest))
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continue;
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continue;
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if (try_excluding &&
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if (try_excluding &&
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