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-rw-r--r--src/or/circuituse.c10
-rw-r--r--src/or/config.c11
-rw-r--r--src/or/or.h7
3 files changed, 23 insertions, 5 deletions
diff --git a/src/or/circuituse.c b/src/or/circuituse.c
index e10bb82641..00340fd689 100644
--- a/src/or/circuituse.c
+++ b/src/or/circuituse.c
@@ -2284,11 +2284,11 @@ connection_ap_handshake_attach_chosen_circuit(entry_connection_t *conn,
base_conn->state = AP_CONN_STATE_CIRCUIT_WAIT;
- if (!circ->base_.timestamp_dirty) {
- circ->base_.timestamp_dirty = approx_time();
- } else if ((conn->entry_cfg.isolation_flags & ISO_SOCKSAUTH) &&
- (conn->socks_request->usernamelen ||
- conn->socks_request->passwordlen)) {
+ if (!circ->base_.timestamp_dirty ||
+ ((conn->entry_cfg.isolation_flags & ISO_SOCKSAUTH) &&
+ (conn->entry_cfg.socks_iso_keep_alive) &&
+ (conn->socks_request->usernamelen ||
+ conn->socks_request->passwordlen))) {
/* When stream isolation is in use and controlled by an application
* we are willing to keep using the stream. */
circ->base_.timestamp_dirty = approx_time();
diff --git a/src/or/config.c b/src/or/config.c
index 6e782de0e0..aca956cf34 100644
--- a/src/or/config.c
+++ b/src/or/config.c
@@ -6022,6 +6022,7 @@ parse_port_config(smartlist_t *out,
int sessiongroup = SESSION_GROUP_UNSET;
unsigned isolation = ISO_DEFAULT;
int prefer_no_auth = 0;
+ int socks_iso_keep_alive = 0;
char *addrport;
uint16_t ptmp=0;
@@ -6246,6 +6247,8 @@ parse_port_config(smartlist_t *out,
isoflag = ISO_CLIENTPROTO;
} else if (!strcasecmp(elt, "IsolateClientAddr")) {
isoflag = ISO_CLIENTADDR;
+ } else if (!strcasecmp(elt, "KeepAliveIsolateSOCKSAuth")) {
+ socks_iso_keep_alive = 1;
} else {
log_warn(LD_CONFIG, "Unrecognized %sPort option '%s'",
portname, escaped(elt_orig));
@@ -6276,6 +6279,13 @@ parse_port_config(smartlist_t *out,
goto err;
}
+ if (!(isolation & ISO_SOCKSAUTH) && socks_iso_keep_alive) {
+ log_warn(LD_CONFIG, "You have a %sPort entry with both "
+ "NoIsolateSOCKSAuth and KeepAliveIsolateSOCKSAuth set.",
+ portname);
+ goto err;
+ }
+
if (out && port) {
size_t namelen = unix_socket_path ? strlen(unix_socket_path) : 0;
port_cfg_t *cfg = port_cfg_new(namelen);
@@ -6309,6 +6319,7 @@ parse_port_config(smartlist_t *out,
cfg->entry_cfg.socks_prefer_no_auth = prefer_no_auth;
if (! (isolation & ISO_SOCKSAUTH))
cfg->entry_cfg.socks_prefer_no_auth = 1;
+ cfg->entry_cfg.socks_iso_keep_alive = socks_iso_keep_alive;
smartlist_add(out, cfg);
}
diff --git a/src/or/or.h b/src/or/or.h
index 8c40f1ab67..6660a0dcdc 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -1155,6 +1155,8 @@ typedef struct entry_port_cfg_t {
/** When both no-auth and user/pass are advertised by a SOCKS client, select
* no-auth. */
unsigned int socks_prefer_no_auth : 1;
+ /** When ISO_SOCKSAUTH is in use, Keep-Alive circuits indefinitely. */
+ unsigned int socks_iso_keep_alive : 1;
/* Client port types only: */
unsigned int ipv4_traffic : 1;
@@ -2877,6 +2879,11 @@ typedef struct circuit_t {
* circuits entered certain states. This usage probably won't
* interfere with this field's primary purpose, but we should
* document it more thoroughly to make sure of that.
+ *
+ * XXX027 The SocksPort option KeepaliveIsolateSOCKSAuth will artificially
+ * adjust this value forward each time a suitable stream is attached to an
+ * already constructed circuit, potentially keeping the circuit alive
+ * indefinitely.
*/
time_t timestamp_dirty;