commit d8b93b31a044be12778f9d7dcd9e4dd666db85e0 Author: David Goulet dgoulet@ev0ke.net Date: Mon Mar 14 11:00:46 2016 -0400
hs: Do not close desc fetch conn. if we can't pick an HSDir
Launching 7 descriptor fetches makes a connection to each HSDir that is 6 and the seventh one fails to pick an HSDir because they are all being used already so it was killing all pending connections at once.
Fixes #15937
Signed-off-by: David Goulet dgoulet@ev0ke.net --- changes/bug15937 | 7 +++++++ src/or/rendclient.c | 10 ++++------ 2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/changes/bug15937 b/changes/bug15937 new file mode 100644 index 0000000..6c73fa4 --- /dev/null +++ b/changes/bug15937 @@ -0,0 +1,7 @@ + o Minor bug fix (hidden service client): + - Seven very fast consecutive requests to the same .onion address + triggers 7 descriptor fetches. The first six each pick a directory + (there are 6 overall) and the seventh one wasn't able to pick one + which was triggering a close on all current directory connections. It + has been fixed by not closing them if we have pending directory fetch. + Fixes #15937; Bugfix on tor-0.2.7.1-alpha. diff --git a/src/or/rendclient.c b/src/or/rendclient.c index 7e1b0e1..609c45c 100644 --- a/src/or/rendclient.c +++ b/src/or/rendclient.c @@ -892,7 +892,6 @@ rend_client_fetch_v2_desc(rend_data_t *query, smartlist_t *hsdirs) void rend_client_refetch_v2_renddesc(rend_data_t *rend_query) { - int ret; rend_cache_entry_t *e = NULL;
tor_assert(rend_query); @@ -912,11 +911,10 @@ rend_client_refetch_v2_renddesc(rend_data_t *rend_query) log_debug(LD_REND, "Fetching v2 rendezvous descriptor for service %s", safe_str_client(rend_query->onion_address));
- ret = rend_client_fetch_v2_desc(rend_query, NULL); - if (ret <= 0) { - /* Close pending connections on error or if no hsdir can be found. */ - rend_client_desc_trynow(rend_query->onion_address); - } + rend_client_fetch_v2_desc(rend_query, NULL); + /* We don't need to look the error code because either on failure or + * success, the necessary steps to continue the HS connection will be + * triggered once the descriptor arrives or if all fetch failed. */ return; }