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Refetch an HS's desc if we don't have a usable one

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Previously, we wouldn't refetch an HS's descriptor unless we didn't
have one at all.  That was equivalent to refetching iff we didn't have
a usable one, but the next commit will make us keep some non-usable HS
descriptors around in our cache.

Code bugfix on the release that introduced the v2 HS directory system,
because rend_client_refetch_v2_renddesc's documentation comment should
have described what it actually did, not what its behaviour happened
to be equivalent to; no behaviour change in this commit.
This commit is contained in:
Robert Ransom 2011-09-28 20:00:24 -07:00
parent ac7b6c508d
commit 6803c1c371
1 changed files with 4 additions and 3 deletions
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7
src/or/rendclient.c
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@ -574,10 +574,11 @@ rend_client_refetch_v2_renddesc(const rend_data_t *rend_query)
"service descriptor, but are not fetching service descriptors.");
return;
}
/* Before fetching, check if we already have the descriptor here. */
if (rend_cache_lookup_entry(rend_query->onion_address, -1, &e) > 0) {
/* Before fetching, check if we already have a usable descriptor here. */
if (rend_cache_lookup_entry(rend_query->onion_address, -1, &e) > 0 &&
rend_client_any_intro_points_usable(e)) {
log_info(LD_REND, "We would fetch a v2 rendezvous descriptor, but we "
"already have that descriptor here. Not fetching.");
"already have a usable descriptor here. Not fetching.");
return;
}
log_debug(LD_REND, "Fetching v2 rendezvous descriptor for service %s",