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Don't use the cache when changing an IP address because of an exit policy

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This commit is contained in:
Nick Mathewson 2012-11-27 20:53:09 -05:00
parent 593b235cc9
commit 8eb422e7bd
1 changed files with 12 additions and 13 deletions
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25
src/or/relay.c
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@ -706,6 +706,7 @@ connection_ap_process_end_not_open(
case END_STREAM_REASON_EXITPOLICY:
if (rh->length >= 5) {
tor_addr_t addr;
int ttl = -1;
tor_addr_make_unspec(&addr);
if (rh->length == 5 || rh->length == 9) {
@ -745,6 +746,16 @@ connection_ap_process_end_not_open(
client_dns_set_addressmap(conn,
conn->socks_request->address, &addr,
conn->chosen_exit_name, ttl);
{
char new_addr[TOR_ADDR_BUF_LEN];
tor_addr_to_str(new_addr, &addr, sizeof(new_addr), 1);
if (strcmp(conn->socks_request->address, new_addr)) {
strlcpy(conn->socks_request->address, new_addr,
sizeof(conn->socks_request->address));
control_event_stream_status(conn, STREAM_EVENT_REMAP, 0);
}
}
}
/* check if he *ought* to have allowed it */
if (exitrouter &&
@ -757,19 +768,7 @@ connection_ap_process_end_not_open(
node_describe(exitrouter));
policies_set_node_exitpolicy_to_reject_all(exitrouter);
}
/* rewrite it to an IP if we learned one. */
{
unsigned rewrite_flags = 0;
if (conn->use_cached_ipv4_answers)
rewrite_flags |= AMR_FLAG_USE_IPV4_DNS;
if (conn->use_cached_ipv6_answers)
rewrite_flags |= AMR_FLAG_USE_IPV6_DNS;
if (addressmap_rewrite(conn->socks_request->address,
sizeof(conn->socks_request->address),
rewrite_flags, NULL, NULL)) {
control_event_stream_status(conn, STREAM_EVENT_REMAP, 0);
}
}
if (conn->chosen_exit_optional ||
conn->chosen_exit_retries) {
/* stop wanting a specific exit */