commit 0941c8bfe6f34024153ae3ed67e4b1a05f9a6bfe Author: Nick Mathewson nickm@torproject.org Date: Sun Apr 22 12:27:21 2018 -0400
control EXTENDCIRCUIT: check node_has_preferred_descriptor().
Suggested by teor during code review for 25691. --- src/or/control.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/or/control.c b/src/or/control.c index f87a0ca48..028339f49 100644 --- a/src/or/control.c +++ b/src/or/control.c @@ -3492,17 +3492,19 @@ handle_control_extendcircuit(control_connection_t *conn, uint32_t len, smartlist_free(args);
nodes = smartlist_new(); + int first_node = zero_circ; SMARTLIST_FOREACH_BEGIN(router_nicknames, const char *, n) { const node_t *node = node_get_by_nickname(n, 0); if (!node) { connection_printf_to_buf(conn, "552 No such router "%s"\r\n", n); goto done; } - if (!node_has_any_descriptor(node)) { + if (!node_has_preferred_descriptor(node, first_node)) { connection_printf_to_buf(conn, "552 No descriptor for "%s"\r\n", n); goto done; } smartlist_add(nodes, (void*)node); + first_node = 0; } SMARTLIST_FOREACH_END(n); if (!smartlist_len(nodes)) { connection_write_str_to_buf("512 No router names provided\r\n", conn); @@ -3515,14 +3517,15 @@ handle_control_extendcircuit(control_connection_t *conn, uint32_t len, }
/* now circ refers to something that is ready to be extended */ - int first_node = zero_circ; + first_node = zero_circ; SMARTLIST_FOREACH(nodes, const node_t *, node, { extend_info_t *info = extend_info_from_node(node, first_node); if (!info) { tor_assert_nonfatal(first_node); log_warn(LD_CONTROL, - "controller tried to connect to a node that doesn't have any " + "controller tried to connect to a node that lacks a suitable " + "descriptor, or which doesn't have any " "addresses that are allowed by the firewall configuration; " "circuit marked for closing."); circuit_mark_for_close(TO_CIRCUIT(circ), -END_CIRC_REASON_CONNECTFAILED);