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Rate-limit the warnings as a client when asked to connect a private addr

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Partial fix for ticket 2822.
This commit is contained in:
Nick Mathewson 2012-03-28 03:06:25 -04:00
parent 86f1630b36
commit 70c17134c7
2 changed files with 26 additions and 7 deletions
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5
changes/bug2822.1 Normal file
View File

@ -0,0 +1,5 @@
o Minor features:
- Rate-limit log messages when asked to connect anonymously to a private
address. When these hit, they tended to hit fast and often. Partial
fix for bug 2822.

28
src/or/connection_edge.c
View File

@ -2006,14 +2006,28 @@ connection_ap_handshake_rewrite_and_attach(entry_connection_t *conn,
* then we really don't want to try to connect to it. That's
* probably an error. */
if (conn->is_transparent_ap) {
log_warn(LD_NET,
"Rejecting request for anonymous connection to private "
"address %s on a TransPort or NATDPort. Possible loop "
"in your NAT rules?", safe_str_client(socks->address));
#define WARN_INTERVAL_LOOP 300
static ratelim_t loop_warn_limit = RATELIM_INIT(WARN_INTERVAL_LOOP);
char *m;
if ((m = rate_limit_log(&loop_warn_limit, approx_time()))) {
log_warn(LD_NET,
"Rejecting request for anonymous connection to private "
"address %s on a TransPort or NATDPort. Possible loop "
"in your NAT rules?%s", safe_str_client(socks->address),
m);
tor_free(m);
}
} else {
log_warn(LD_NET,
"Rejecting SOCKS request for anonymous connection to "
"private address %s", safe_str_client(socks->address));
#define WARN_INTERVAL_PRIV 300
static ratelim_t priv_warn_limit = RATELIM_INIT(WARN_INTERVAL_PRIV);
char *m;
if ((m = rate_limit_log(&priv_warn_limit, approx_time()))) {
log_warn(LD_NET,
"Rejecting SOCKS request for anonymous connection to "
"private address %s.%s",
safe_str_client(socks->address),m);
tor_free(m);
}
}
connection_mark_unattached_ap(conn, END_STREAM_REASON_PRIVATE_ADDR);
return -1;