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-rw-r--r--ChangeLog5
-rw-r--r--src/or/circuitbuild.c2
-rw-r--r--src/or/circuitlist.c14
-rw-r--r--src/or/or.h5
-rw-r--r--src/or/rendclient.c2
-rw-r--r--src/or/rendservice.c2
6 files changed, 23 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog
index b1cb770b4a..b6863ca6c1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,11 @@
Changes in version 0.2.2.2-alpha - 2009-09-??
o Major features:
- Authorities can now vote on arbitary integer values as part of the
- consensus process. This is designed to help set network parameters.
+ consensus process. This is designed to help set network parameters.
Implements proposal 167.
+ - Tor now reads the "circwindow" parameter out of the consensus,
+ and uses that value for its circuit package window rather than the
+ default of 1000 cells. Begins the implementation of proposal 168.
o Minor bugfixes:
- Fix an extremely rare infinite recursion bug that could occur if
diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c
index 4432c25493..6f559d9886 100644
--- a/src/or/circuitbuild.c
+++ b/src/or/circuitbuild.c
@@ -1833,7 +1833,7 @@ onion_append_hop(crypt_path_t **head_ptr, extend_info_t *choice)
hop->extend_info = extend_info_dup(choice);
- hop->package_window = CIRCWINDOW_START;
+ hop->package_window = circuit_initial_package_window();
hop->deliver_window = CIRCWINDOW_START;
return 0;
diff --git a/src/or/circuitlist.c b/src/or/circuitlist.c
index 065559620c..e1da117168 100644
--- a/src/or/circuitlist.c
+++ b/src/or/circuitlist.c
@@ -361,6 +361,18 @@ circuit_purpose_to_controller_string(uint8_t purpose)
}
}
+/** Pick a reasonable package_window to start out for our circuits.
+ * Originally this was hard-coded at 1000, but now the consensus votes
+ * on the answer. See proposal 168. */
+int32_t
+circuit_initial_package_window(void)
+{
+ networkstatus_t *consensus = networkstatus_get_latest_consensus();
+ if (consensus)
+ return networkstatus_get_param(consensus, "circwindow", CIRCWINDOW_START);
+ return CIRCWINDOW_START;
+}
+
/** Initialize the common elements in a circuit_t, and add it to the global
* list. */
static void
@@ -368,7 +380,7 @@ init_circuit_base(circuit_t *circ)
{
circ->timestamp_created = time(NULL);
- circ->package_window = CIRCWINDOW_START;
+ circ->package_window = circuit_initial_package_window();
circ->deliver_window = CIRCWINDOW_START;
circuit_add(circ);
diff --git a/src/or/or.h b/src/or/or.h
index c93b8ed0fd..8587ea61fc 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -1870,9 +1870,9 @@ typedef struct crypt_path_t {
struct crypt_path_t *prev; /**< Link to previous crypt_path_t in the
* circuit. */
- int package_window; /**< How many bytes are we allowed to originate ending
+ int package_window; /**< How many cells are we allowed to originate ending
* at this step? */
- int deliver_window; /**< How many bytes are we willing to deliver originating
+ int deliver_window; /**< How many cells are we willing to deliver originating
* at this step? */
} crypt_path_t;
@@ -2864,6 +2864,7 @@ void circuit_set_n_circid_orconn(circuit_t *circ, circid_t id,
or_connection_t *conn);
void circuit_set_state(circuit_t *circ, uint8_t state);
void circuit_close_all_marked(void);
+int32_t circuit_initial_package_window(void);
origin_circuit_t *origin_circuit_new(void);
or_circuit_t *or_circuit_new(circid_t p_circ_id, or_connection_t *p_conn);
circuit_t *circuit_get_by_circid_orconn(circid_t circ_id,
diff --git a/src/or/rendclient.c b/src/or/rendclient.c
index 141efdc6a3..fc8d05b6ad 100644
--- a/src/or/rendclient.c
+++ b/src/or/rendclient.c
@@ -644,7 +644,7 @@ rend_client_receive_rendezvous(origin_circuit_t *circ, const char *request,
/* set the windows to default. these are the windows
* that alice thinks bob has.
*/
- hop->package_window = CIRCWINDOW_START;
+ hop->package_window = circuit_initial_package_window();
hop->deliver_window = CIRCWINDOW_START;
onion_append_to_cpath(&circ->cpath, hop);
diff --git a/src/or/rendservice.c b/src/or/rendservice.c
index 7a970e490d..1beebd2ed6 100644
--- a/src/or/rendservice.c
+++ b/src/or/rendservice.c
@@ -1477,7 +1477,7 @@ rend_service_rendezvous_has_opened(origin_circuit_t *circuit)
/* set the windows to default. these are the windows
* that bob thinks alice has.
*/
- hop->package_window = CIRCWINDOW_START;
+ hop->package_window = circuit_initial_package_window();;
hop->deliver_window = CIRCWINDOW_START;
onion_append_to_cpath(&circuit->cpath, hop);