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Merge branch 'ticket25573-034' into ticket25573-master

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This commit is contained in:
Mike Perry 2018-08-29 17:10:06 +00:00
commit 93ff8b411a
14 changed files with 1033 additions and 45 deletions
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5
changes/ticket25573 Normal file
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@ -0,0 +1,5 @@
o Minor features (controller):
- For purposes of CIRC_BW-based dropped cell detection, track half-closed
stream ids, and allow their ENDs, SENDMEs, DATA and path bias check
cells to arrive without counting it as dropped until either the END arrvies,
or the windows are empty. Closes ticket 25573.

3
src/core/or/circuitbuild.c
View File

@ -1429,13 +1429,12 @@ circuit_finish_handshake(origin_circuit_t *circ,
* just give up: force circ to close, and return 0.
*/
int
circuit_truncated(origin_circuit_t *circ, crypt_path_t *layer, int reason)
circuit_truncated(origin_circuit_t *circ, int reason)
{
// crypt_path_t *victim;
// connection_t *stream;
tor_assert(circ);
tor_assert(layer);
/* XXX Since we don't send truncates currently, getting a truncated
* means that a connection broke or an extend failed. For now,

3
src/core/or/circuitbuild.h
View File

@ -40,8 +40,7 @@ int circuit_init_cpath_crypto(crypt_path_t *cpath,
struct created_cell_t;
int circuit_finish_handshake(origin_circuit_t *circ,
const struct created_cell_t *created_cell);
int circuit_truncated(origin_circuit_t *circ, crypt_path_t *layer,
int reason);
int circuit_truncated(origin_circuit_t *circ, int reason);
int onionskin_answer(or_circuit_t *circ,
const struct created_cell_t *created_cell,
const char *keys, size_t keys_len,

9
src/core/or/circuitlist.c
View File

@ -99,6 +99,7 @@
#include "core/or/crypt_path_reference_st.h"
#include "feature/dircommon/dir_connection_st.h"
#include "core/or/edge_connection_st.h"
#include "core/or/half_edge_st.h"
#include "core/or/extend_info_st.h"
#include "core/or/or_circuit_st.h"
#include "core/or/origin_circuit_st.h"
@ -1078,6 +1079,14 @@ circuit_free_(circuit_t *circ)
circuit_remove_from_origin_circuit_list(ocirc);
if (ocirc->half_streams) {
SMARTLIST_FOREACH_BEGIN(ocirc->half_streams, half_edge_t*,
half_conn) {
tor_free(half_conn);
} SMARTLIST_FOREACH_END(half_conn);
smartlist_free(ocirc->half_streams);
}
if (ocirc->build_state) {
extend_info_free(ocirc->build_state->chosen_exit);
circuit_free_cpath_node(ocirc->build_state->pending_final_cpath);

226
src/core/or/connection_edge.c
View File

@ -105,6 +105,7 @@
#include "feature/nodelist/node_st.h"
#include "core/or/or_circuit_st.h"
#include "core/or/origin_circuit_st.h"
#include "core/or/half_edge_st.h"
#include "core/or/socks_request_st.h"
#include "lib/evloop/compat_libevent.h"
@ -154,6 +155,11 @@ static int connection_ap_process_natd(entry_connection_t *conn);
static int connection_exit_connect_dir(edge_connection_t *exitconn);
static int consider_plaintext_ports(entry_connection_t *conn, uint16_t port);
static int connection_ap_supports_optimistic_data(const entry_connection_t *);
STATIC void connection_half_edge_add(const edge_connection_t *conn,
origin_circuit_t *circ);
STATIC half_edge_t *connection_half_edge_find_stream_id(
const smartlist_t *half_conns,
streamid_t stream_id);
/** Convert a connection_t* to an edge_connection_t*; assert if the cast is
* invalid. */
@ -472,6 +478,12 @@ connection_edge_end(edge_connection_t *conn, uint8_t reason)
if (circ && !circ->marked_for_close) {
log_debug(LD_EDGE,"Sending end on conn (fd "TOR_SOCKET_T_FORMAT").",
conn->base_.s);
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *origin_circ = TO_ORIGIN_CIRCUIT(circ);
connection_half_edge_add(conn, origin_circ);
}
connection_edge_send_command(conn, RELAY_COMMAND_END,
payload, payload_len);
/* We'll log warn if the connection was an hidden service and couldn't be
@ -488,6 +500,215 @@ connection_edge_end(edge_connection_t *conn, uint8_t reason)
return 0;
}
/**
* Helper function for bsearch.
*
* As per smartlist_bsearch, return < 0 if key preceeds member,
* > 0 if member preceeds key, and 0 if they are equal.
*
* This is equivalent to subtraction of the values of key - member
* (why does no one ever say that explicitly?).
*/
static int
connection_half_edge_compare_bsearch(const void *key, const void **member)
{
const half_edge_t *e2;
tor_assert(key);
tor_assert(member && *(half_edge_t**)member);
e2 = *(const half_edge_t **)member;
return *(const streamid_t*)key - e2->stream_id;
}
/**
* Add a half-closed connection to the list, to watch for activity.
*
* These connections are removed from the list upon receiving an end
* cell.
*/
STATIC void
connection_half_edge_add(const edge_connection_t *conn,
origin_circuit_t *circ)
{
half_edge_t *half_conn = NULL;
int insert_at = 0;
int ignored;
/* Double-check for re-insertion. This should not happen,
* but this check is cheap compared to the sort anyway */
if (connection_half_edge_find_stream_id(circ->half_streams,
conn->stream_id)) {
log_warn(LD_BUG, "Duplicate stream close for stream %d on circuit %d",
conn->stream_id, circ->global_identifier);
return;
}
half_conn = tor_malloc_zero(sizeof(half_edge_t));
if (!circ->half_streams) {
circ->half_streams = smartlist_new();
}
half_conn->stream_id = conn->stream_id;
// How many sendme's should I expect?
half_conn->sendmes_pending =
(STREAMWINDOW_START-conn->package_window)/STREAMWINDOW_INCREMENT;
// Is there a connected cell pending?
half_conn->connected_pending = conn->base_.state ==
AP_CONN_STATE_CONNECT_WAIT;
/* Data should only arrive if we're not waiting on a resolved cell.
* It can arrive after waiting on connected, because of optimistic
* data. */
if (conn->base_.state != AP_CONN_STATE_RESOLVE_WAIT) {
// How many more data cells can arrive on this id?
half_conn->data_pending = conn->deliver_window;
}
insert_at = smartlist_bsearch_idx(circ->half_streams, &half_conn->stream_id,
connection_half_edge_compare_bsearch,
&ignored);
smartlist_insert(circ->half_streams, insert_at, half_conn);
}
/**
* Find a stream_id_t in the list in O(lg(n)).
*
* Returns NULL if the list is empty or element is not found.
* Returns a pointer to the element if found.
*/
STATIC half_edge_t *
connection_half_edge_find_stream_id(const smartlist_t *half_conns,
streamid_t stream_id)
{
if (!half_conns)
return NULL;
return smartlist_bsearch(half_conns, &stream_id,
connection_half_edge_compare_bsearch);
}
/**
* Check if this stream_id is in a half-closed state. If so,
* check if it still has data cells pending, and decrement that
* window if so.
*
* Return 1 if the data window was not empty.
* Return 0 otherwise.
*/
int
connection_half_edge_is_valid_data(const smartlist_t *half_conns,
streamid_t stream_id)
{
half_edge_t *half = connection_half_edge_find_stream_id(half_conns,
stream_id);
if (!half)
return 0;
if (half->data_pending > 0) {
half->data_pending--;
return 1;
}
return 0;
}
/**
* Check if this stream_id is in a half-closed state. If so,
* check if it still has a connected cell pending, and decrement
* that window if so.
*
* Return 1 if the connected window was not empty.
* Return 0 otherwise.
*/
int
connection_half_edge_is_valid_connected(const smartlist_t *half_conns,
streamid_t stream_id)
{
half_edge_t *half = connection_half_edge_find_stream_id(half_conns,
stream_id);
if (!half)
return 0;
if (half->connected_pending) {
half->connected_pending = 0;
return 1;
}
return 0;
}
/**
* Check if this stream_id is in a half-closed state. If so,
* check if it still has sendme cells pending, and decrement that
* window if so.
*
* Return 1 if the sendme window was not empty.
* Return 0 otherwise.
*/
int
connection_half_edge_is_valid_sendme(const smartlist_t *half_conns,
streamid_t stream_id)
{
half_edge_t *half = connection_half_edge_find_stream_id(half_conns,
stream_id);
if (!half)
return 0;
if (half->sendmes_pending > 0) {
half->sendmes_pending--;
return 1;
}
return 0;
}
/**
* Check if this stream_id is in a half-closed state. If so, remove
* it from the list. No other data should come after the END cell.
*
* Return 1 if stream_id was in half-closed state.
* Return 0 otherwise.
*/
int
connection_half_edge_is_valid_end(smartlist_t *half_conns,
streamid_t stream_id)
{
half_edge_t *half;
int found, remove_idx;
if (!half_conns)
return 0;
remove_idx = smartlist_bsearch_idx(half_conns, &stream_id,
connection_half_edge_compare_bsearch,
&found);
if (!found)
return 0;
half = smartlist_get(half_conns, remove_idx);
smartlist_del_keeporder(half_conns, remove_idx);
tor_free(half);
return 1;
}
/**
* Streams that were used to send a RESOLVE cell are closed
* when they get the RESOLVED, without an end. So treat
* a RESOLVED just like an end, and remove from the list.
*/
int
connection_half_edge_is_valid_resolved(smartlist_t *half_conns,
streamid_t stream_id)
{
return connection_half_edge_is_valid_end(half_conns, stream_id);
}
/** An error has just occurred on an operation on an edge connection
* <b>conn</b>. Extract the errno; convert it to an end reason, and send an
* appropriate relay end cell to the other end of the connection's circuit.
@ -2623,6 +2844,11 @@ get_unique_stream_id_by_circ(origin_circuit_t *circ)
for (tmpconn = circ->p_streams; tmpconn; tmpconn=tmpconn->next_stream)
if (tmpconn->stream_id == test_stream_id)
goto again;
if (connection_half_edge_find_stream_id(circ->half_streams,
test_stream_id))
goto again;
return test_stream_id;
}

11
src/core/or/connection_edge.h
View File

@ -174,6 +174,17 @@ void connection_ap_warn_and_unmark_if_pending_circ(
entry_connection_t *entry_conn,
const char *where);
int connection_half_edge_is_valid_data(const smartlist_t *half_conns,
streamid_t stream_id);
int connection_half_edge_is_valid_sendme(const smartlist_t *half_conns,
streamid_t stream_id);
int connection_half_edge_is_valid_connected(const smartlist_t *half_conns,
streamid_t stream_id);
int connection_half_edge_is_valid_end(smartlist_t *half_conns,
streamid_t stream_id);
int connection_half_edge_is_valid_resolved(smartlist_t *half_conns,
streamid_t stream_id);
/** @name Begin-cell flags
*
* These flags are used in RELAY_BEGIN cells to change the default behavior

34
src/core/or/half_edge_st.h Normal file
View File

@ -0,0 +1,34 @@
/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef HALF_EDGE_ST_H
#define HALF_EDGE_ST_H
#include "core/or/or.h"
/**
* Struct to track a connection that we closed that the other end
* still thinks is open. Exists in origin_circuit_t.half_streams until
* we get an end cell or a resolved cell for this stream id.
*/
typedef struct half_edge_t {
/** stream_id for the half-closed connection */
streamid_t stream_id;
/** How many sendme's can the other end still send, based on how
* much data we had sent at the time of close */
int sendmes_pending;
/** How much more data can the other end still send, based on
* our deliver window */
int data_pending;
/** Is there a connected cell pending? */
int connected_pending : 1;
} half_edge_t;
#endif

4
src/core/or/origin_circuit_st.h
View File

@ -78,6 +78,10 @@ struct origin_circuit_t {
* associated with this circuit. */
edge_connection_t *p_streams;
/** Smartlist of half-closed streams (half_edge_t*) that still
* have pending activity */
smartlist_t *half_streams;
/** Bytes read on this circuit since last call to
* control_event_circ_bandwidth_used(). Only used if we're configured
* to emit CIRC_BW events. */

75
src/core/or/relay.c
View File

@ -255,7 +255,9 @@ circuit_receive_relay_cell(cell_t *cell, circuit_t *circ,
edge_connection_t *conn = NULL;
if (circ->purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING) {
pathbias_check_probe_response(circ, cell);
if (pathbias_check_probe_response(circ, cell) == -1) {
pathbias_count_valid_cells(circ, cell);
}
/* We need to drop this cell no matter what to avoid code that expects
* a certain purpose (such as the hidserv code). */
@ -1561,6 +1563,17 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
"stream_id. Dropping.");
return 0;
} else if (!conn) {
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
if (connection_half_edge_is_valid_data(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(ocirc, rh.length);
log_info(domain,
"data cell on circ %u valid on half-closed "
"stream id %d", ocirc->global_identifier, rh.stream_id);
}
}
log_info(domain,"data cell dropped, unknown stream (streamid %d).",
rh.stream_id);
return 0;
@ -1602,6 +1615,20 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
reason = rh.length > 0 ?
get_uint8(cell->payload+RELAY_HEADER_SIZE) : END_STREAM_REASON_MISC;
if (!conn) {
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
if (connection_half_edge_is_valid_end(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(ocirc, rh.length);
log_info(domain,
"end cell (%s) on circ %u valid on half-closed "
"stream id %d",
stream_end_reason_to_string(reason),
ocirc->global_identifier, rh.stream_id);
return 0;
}
}
log_info(domain,"end cell (%s) dropped, unknown stream.",
stream_end_reason_to_string(reason));
return 0;
@ -1737,7 +1764,14 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
"'truncated' unsupported at non-origin. Dropping.");
return 0;
}
circuit_truncated(TO_ORIGIN_CIRCUIT(circ), layer_hint,
/* Count the truncated as valid, for completeness. The
* circuit is being torn down anyway, though. */
if (CIRCUIT_IS_ORIGIN(circ)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ),
rh.length);
}
circuit_truncated(TO_ORIGIN_CIRCUIT(circ),
get_uint8(cell->payload + RELAY_HEADER_SIZE));
return 0;
case RELAY_COMMAND_CONNECTED:
@ -1746,6 +1780,19 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
"'connected' unsupported while open. Closing circ.");
return -END_CIRC_REASON_TORPROTOCOL;
}
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
if (connection_half_edge_is_valid_connected(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(ocirc, rh.length);
log_info(domain,
"connected cell on circ %u valid on half-closed "
"stream id %d", ocirc->global_identifier, rh.stream_id);
return 0;
}
}
log_info(domain,
"'connected' received on circid %u for streamid %d, "
"no conn attached anymore. Ignoring.",
@ -1794,6 +1841,17 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
return 0;
}
if (!conn) {
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
if (connection_half_edge_is_valid_sendme(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(ocirc, rh.length);
log_info(domain,
"sendme cell on circ %u valid on half-closed "
"stream id %d", ocirc->global_identifier, rh.stream_id);
}
}
log_info(domain,"sendme cell dropped, unknown stream (streamid %d).",
rh.stream_id);
return 0;
@ -1857,6 +1915,19 @@ connection_edge_process_relay_cell(cell_t *cell, circuit_t *circ,
"'resolved' unsupported while open. Closing circ.");
return -END_CIRC_REASON_TORPROTOCOL;
}
if (CIRCUIT_IS_ORIGIN(circ)) {
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
if (connection_half_edge_is_valid_resolved(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(ocirc, rh.length);
log_info(domain,
"resolved cell on circ %u valid on half-closed "
"stream id %d", ocirc->global_identifier, rh.stream_id);
return 0;
}
}
log_info(domain,
"'resolved' received, no conn attached anymore. Ignoring.");
return 0;

63
src/feature/client/circpathbias.c
View File

@ -901,6 +901,7 @@ pathbias_check_probe_response(circuit_t *circ, const cell_t *cell)
/* Check nonce */
if (ipv4_host == ocirc->pathbias_probe_nonce) {
pathbias_mark_use_success(ocirc);
circuit_read_valid_data(ocirc, rh.length);
circuit_mark_for_close(circ, END_CIRC_REASON_FINISHED);
log_info(LD_CIRC,
"Got valid path bias probe back for circ %d, stream %d.",
@ -921,6 +922,68 @@ pathbias_check_probe_response(circuit_t *circ, const cell_t *cell)
return -1;
}
/**
* Check if a cell is counts as valid data for a circuit,
* and if so, count it as valid.
*/
void
pathbias_count_valid_cells(circuit_t *circ, const cell_t *cell)
{
origin_circuit_t *ocirc = TO_ORIGIN_CIRCUIT(circ);
relay_header_t rh;
relay_header_unpack(&rh, cell->payload);
/* Check to see if this is a cell from a previous connection,
* or is a request to close the circuit. */
switch (rh.command) {
case RELAY_COMMAND_TRUNCATED:
/* Truncated cells can arrive on path bias circs. When they do,
* just process them. This closes the circ, but it was junk anyway.
* No reason to wait for the probe. */
circuit_read_valid_data(ocirc, rh.length);
circuit_truncated(TO_ORIGIN_CIRCUIT(circ),
get_uint8(cell->payload + RELAY_HEADER_SIZE));
break;
case RELAY_COMMAND_END:
if (connection_half_edge_is_valid_end(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ), rh.length);
}
break;
case RELAY_COMMAND_DATA:
if (connection_half_edge_is_valid_data(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ), rh.length);
}
break;
case RELAY_COMMAND_SENDME:
if (connection_half_edge_is_valid_sendme(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ), rh.length);
}
break;
case RELAY_COMMAND_CONNECTED:
if (connection_half_edge_is_valid_connected(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ), rh.length);
}
break;
case RELAY_COMMAND_RESOLVED:
if (connection_half_edge_is_valid_resolved(ocirc->half_streams,
rh.stream_id)) {
circuit_read_valid_data(TO_ORIGIN_CIRCUIT(circ), rh.length);
}
break;
}
}
/**
* Check if a circuit was used and/or closed successfully.
*

1
src/feature/client/circpathbias.h
View File

@ -20,6 +20,7 @@ void pathbias_count_build_success(origin_circuit_t *circ);
int pathbias_count_build_attempt(origin_circuit_t *circ);
int pathbias_check_close(origin_circuit_t *circ, int reason);
int pathbias_check_probe_response(circuit_t *circ, const cell_t *cell);
void pathbias_count_valid_cells(circuit_t *circ, const cell_t *cell);
void pathbias_count_use_attempt(origin_circuit_t *circ);
void pathbias_mark_use_success(origin_circuit_t *circ);
void pathbias_mark_use_rollback(origin_circuit_t *circ);

2
src/lib/container/smartlist.c
View File

@ -408,7 +408,7 @@ smartlist_uniq(smartlist_t *sl,
* less than member, and greater than 0 if key is greater then member.
*/
void *
smartlist_bsearch(smartlist_t *sl, const void *key,
smartlist_bsearch(const smartlist_t *sl, const void *key,
int (*compare)(const void *key, const void **member))
{
int found, idx;

2
src/lib/container/smartlist.h
View File

@ -64,7 +64,7 @@ const uint8_t *smartlist_get_most_frequent_digest256(smartlist_t *sl);
void smartlist_uniq_strings(smartlist_t *sl);
void smartlist_uniq_digests(smartlist_t *sl);
void smartlist_uniq_digests256(smartlist_t *sl);
void *smartlist_bsearch(smartlist_t *sl, const void *key,
void *smartlist_bsearch(const smartlist_t *sl, const void *key,
int (*compare)(const void *key, const void **member));
int smartlist_bsearch_idx(const smartlist_t *sl, const void *key,
int (*compare)(const void *key, const void **member),

640
src/test/test_relaycell.c
View File

@ -10,17 +10,20 @@
#include "app/config/config.h"
#include "core/mainloop/connection.h"
#include "lib/crypt_ops/crypto.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "core/or/circuitbuild.h"
#include "core/or/circuitlist.h"
#include "core/or/connection_edge.h"
#include "core/or/relay.h"
#include "test/test.h"
#include "test/log_test_helpers.h"
#include "core/or/cell_st.h"
#include "core/or/crypt_path_st.h"
#include "core/or/entry_connection_st.h"
#include "core/or/origin_circuit_st.h"
#include "core/or/socks_request_st.h"
#include "core/or/half_edge_st.h"
static int srm_ncalls;
static entry_connection_t *srm_conn;
@ -35,6 +38,18 @@ void connection_free_minimal(connection_t*);
int connected_cell_format_payload(uint8_t *payload_out,
const tor_addr_t *addr,
uint32_t ttl);
int pathbias_count_valid_cells(origin_circuit_t *circ,
cell_t *cell);
half_edge_t *connection_half_edge_find_stream_id(
const smartlist_t *half_conns,
streamid_t stream_id);
void connection_half_edge_add(const edge_connection_t *conn,
origin_circuit_t *circ);
int mock_send_command(streamid_t stream_id, circuit_t *circ,
uint8_t relay_command, const char *payload,
size_t payload_len, crypt_path_t *cpath_layer,
const char *filename, int lineno);
/* Mock replacement for connection_ap_hannshake_socks_resolved() */
static void
@ -107,6 +122,16 @@ mock_connection_mark_unattached_ap_(entry_connection_t *conn, int endreason,
conn->edge_.end_reason = endreason;
}
static void
mock_mark_circ_for_close(circuit_t *circ, int reason, int line,
const char *file)
{
(void)reason; (void)line; (void)file;
circ->marked_for_close = 1;
return;
}
static void
mock_mark_for_close(connection_t *conn,
int line, const char *file)
@ -125,19 +150,38 @@ mock_start_reading(connection_t *conn)
return;
}
static void
test_circbw_relay(void *arg)
int
mock_send_command(streamid_t stream_id, circuit_t *circ,
uint8_t relay_command, const char *payload,
size_t payload_len, crypt_path_t *cpath_layer,
const char *filename, int lineno)
{
(void)stream_id; (void)circ;
(void)relay_command; (void)payload;
(void)payload_len; (void)cpath_layer;
(void)filename; (void)lineno;
return 0;
}
static entry_connection_t *
fake_entry_conn(origin_circuit_t *oncirc, streamid_t id)
{
cell_t cell;
relay_header_t rh;
tor_addr_t addr;
edge_connection_t *edgeconn;
entry_connection_t *entryconn;
origin_circuit_t *circ;
int delivered = 0;
int overhead = 0;
(void)arg;
entryconn = entry_connection_new(CONN_TYPE_AP, AF_INET);
edgeconn = ENTRY_TO_EDGE_CONN(entryconn);
edgeconn->base_.state = AP_CONN_STATE_CONNECT_WAIT;
edgeconn->deliver_window = STREAMWINDOW_START;
edgeconn->package_window = STREAMWINDOW_START;
edgeconn->stream_id = id;
edgeconn->on_circuit = TO_CIRCUIT(oncirc);
edgeconn->cpath_layer = oncirc->cpath;
return entryconn;
}
#define PACK_CELL(id, cmd, body_s) do { \
memset(&cell, 0, sizeof(cell)); \
@ -160,18 +204,521 @@ test_circbw_relay(void *arg)
tt_int_op(circ->n_overhead_read_circ_bw, OP_EQ, overhead); \
} while (0)
static int
subtest_circbw_halfclosed(origin_circuit_t *circ, streamid_t init_id)
{
cell_t cell;
relay_header_t rh;
edge_connection_t *edgeconn;
entry_connection_t *entryconn2=NULL;
entry_connection_t *entryconn3=NULL;
entry_connection_t *entryconn4=NULL;
int delivered = circ->n_delivered_read_circ_bw;
int overhead = circ->n_overhead_read_circ_bw;
/* Make new entryconns */
entryconn2 = fake_entry_conn(circ, init_id);
entryconn2->socks_request->has_finished = 1;
entryconn3 = fake_entry_conn(circ, init_id+1);
entryconn3->socks_request->has_finished = 1;
entryconn4 = fake_entry_conn(circ, init_id+2);
entryconn4->socks_request->has_finished = 1;
edgeconn = ENTRY_TO_EDGE_CONN(entryconn2);
edgeconn->package_window = 23;
edgeconn->base_.state = AP_CONN_STATE_OPEN;
int data_cells = edgeconn->deliver_window;
int sendme_cells = (STREAMWINDOW_START-edgeconn->package_window)
/STREAMWINDOW_INCREMENT;
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
connection_edge_reached_eof(edgeconn);
/* Data cell not in the half-opened list */
PACK_CELL(4000, RELAY_COMMAND_DATA, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Sendme cell not in the half-opened list */
PACK_CELL(4000, RELAY_COMMAND_SENDME, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Connected cell not in the half-opened list */
PACK_CELL(4000, RELAY_COMMAND_CONNECTED, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Resolved cell not in the half-opened list */
PACK_CELL(4000, RELAY_COMMAND_RESOLVED, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Connected cell: not counted -- we were open */
edgeconn = ENTRY_TO_EDGE_CONN(entryconn2);
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_CONNECTED, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* DATA cells up to limit */
while (data_cells > 0) {
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_DATA, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
data_cells--;
}
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_DATA, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* SENDME cells up to limit */
while (sendme_cells > 0) {
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_SENDME, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
sendme_cells--;
}
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_SENDME, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Only one END cell */
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_END, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
ENTRY_TO_CONN(entryconn2)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn2)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_END, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
edgeconn = ENTRY_TO_EDGE_CONN(entryconn3);
edgeconn->base_.state = AP_CONN_STATE_OPEN;
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
/* sendme cell on open entryconn with full window */
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_SENDME, "Data1234");
int ret =
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
tt_int_op(ret, OP_EQ, -END_CIRC_REASON_TORPROTOCOL);
ASSERT_UNCOUNTED_BW();
/* connected cell on a after EOF */
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
edgeconn->base_.state = AP_CONN_STATE_CONNECT_WAIT;
connection_edge_reached_eof(edgeconn);
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_CONNECTED, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_CONNECTED, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* DATA and SENDME after END cell */
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_END, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_SENDME, "Data1234");
ret =
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
tt_int_op(ret, OP_NE, -END_CIRC_REASON_TORPROTOCOL);
ASSERT_UNCOUNTED_BW();
ENTRY_TO_CONN(entryconn3)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn3)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_DATA, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Resolved: 1 counted, more not */
edgeconn = ENTRY_TO_EDGE_CONN(entryconn4);
entryconn4->socks_request->command = SOCKS_COMMAND_RESOLVE;
edgeconn->base_.state = AP_CONN_STATE_RESOLVE_WAIT;
edgeconn->on_circuit = TO_CIRCUIT(circ);
ENTRY_TO_CONN(entryconn4)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn4)->outbuf_flushlen = 0;
connection_edge_reached_eof(edgeconn);
ENTRY_TO_CONN(entryconn4)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn4)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_RESOLVED,
"\x04\x04\x12\x00\x00\x01\x00\x00\x02\x00");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_COUNTED_BW();
ENTRY_TO_CONN(entryconn4)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn4)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_RESOLVED,
"\x04\x04\x12\x00\x00\x01\x00\x00\x02\x00");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Data not counted after resolved */
ENTRY_TO_CONN(entryconn4)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn4)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_DATA, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* End not counted after resolved */
ENTRY_TO_CONN(entryconn4)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn4)->outbuf_flushlen = 0;
PACK_CELL(edgeconn->stream_id, RELAY_COMMAND_END, "Data1234");
if (circ->base_.purpose == CIRCUIT_PURPOSE_PATH_BIAS_TESTING)
pathbias_count_valid_cells(circ, &cell);
else
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
connection_free_minimal(ENTRY_TO_CONN(entryconn2));
connection_free_minimal(ENTRY_TO_CONN(entryconn3));
connection_free_minimal(ENTRY_TO_CONN(entryconn4));
return 1;
done:
connection_free_minimal(ENTRY_TO_CONN(entryconn2));
connection_free_minimal(ENTRY_TO_CONN(entryconn3));
connection_free_minimal(ENTRY_TO_CONN(entryconn4));
return 0;
}
static int
halfstream_insert(origin_circuit_t *circ, edge_connection_t *edgeconn,
streamid_t *streams, int num, int random)
{
int inserted = 0;
/* Insert num random elements */
while (inserted < num) {
streamid_t id;
if (random)
id = (streamid_t)crypto_rand_int(65535)+1;
else
id = get_unique_stream_id_by_circ(circ);
edgeconn->stream_id = id;
/* Ensure it isn't there */
if (connection_half_edge_find_stream_id(circ->half_streams, id)) {
continue;
}
connection_half_edge_add(edgeconn, circ);
if (streams)
streams[inserted] = id;
inserted++;
}
return inserted;
}
static void
subtest_halfstream_insertremove(int num)
{
origin_circuit_t *circ =
helper_create_origin_circuit(CIRCUIT_PURPOSE_C_GENERAL, 0);
edge_connection_t *edgeconn;
entry_connection_t *entryconn;
streamid_t *streams = tor_malloc_zero(num*sizeof(streamid_t));
int i = 0;
circ->cpath->state = CPATH_STATE_AWAITING_KEYS;
circ->cpath->deliver_window = CIRCWINDOW_START;
entryconn = fake_entry_conn(circ, 23);
edgeconn = ENTRY_TO_EDGE_CONN(entryconn);
/* Explicity test all operations on an absent stream list */
tt_int_op(connection_half_edge_is_valid_data(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_connected(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_sendme(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_resolved(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
23), OP_EQ, 0);
/* Insert a duplicate element; verify that other elements absent;
* ensure removing it once works */
edgeconn->stream_id = 23;
connection_half_edge_add(edgeconn, circ);
connection_half_edge_add(edgeconn, circ);
connection_half_edge_add(edgeconn, circ);
/* Verify that other elements absent */
tt_int_op(connection_half_edge_is_valid_data(circ->half_streams,
22), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_connected(circ->half_streams,
22), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_sendme(circ->half_streams,
22), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_resolved(circ->half_streams,
22), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
22), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_data(circ->half_streams,
24), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_connected(circ->half_streams,
24), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_sendme(circ->half_streams,
24), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_resolved(circ->half_streams,
24), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
24), OP_EQ, 0);
/* Verify we only remove it once */
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
23), OP_EQ, 1);
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
23), OP_EQ, 0);
halfstream_insert(circ, edgeconn, streams, num, 1);
/* Remove half of them */
for (i = 0; i < num/2; i++) {
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
streams[i]),
OP_EQ, 1);
}
/* Verify first half of list is gone */
for (i = 0; i < num/2; i++) {
tt_ptr_op(connection_half_edge_find_stream_id(circ->half_streams,
streams[i]),
OP_EQ, NULL);
}
/* Verify second half of list is present */
for (; i < num; i++) {
tt_ptr_op(connection_half_edge_find_stream_id(circ->half_streams,
streams[i]),
OP_NE, NULL);
}
/* Remove other half. Verify list is empty. */
for (i = num/2; i < num; i++) {
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
streams[i]),
OP_EQ, 1);
}
tt_int_op(smartlist_len(circ->half_streams), OP_EQ, 0);
/* Explicity test all operations on an empty stream list */
tt_int_op(connection_half_edge_is_valid_data(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_connected(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_sendme(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_resolved(circ->half_streams,
23), OP_EQ, 0);
tt_int_op(connection_half_edge_is_valid_end(circ->half_streams,
23), OP_EQ, 0);
/* For valgrind, leave some around then free the circ */
halfstream_insert(circ, edgeconn, NULL, 10, 0);
done:
tor_free(streams);
circuit_free_(TO_CIRCUIT(circ));
connection_free_minimal(ENTRY_TO_CONN(entryconn));
}
static void
test_halfstream_insertremove(void *arg)
{
(void)arg;
/* Suppress the WARN message we generate in this test */
setup_full_capture_of_logs(LOG_WARN);
/* Test insertion and removal with a few different sizes */
subtest_halfstream_insertremove(10);
subtest_halfstream_insertremove(100);
subtest_halfstream_insertremove(1000);
}
static void
test_halfstream_wrap(void *arg)
{
origin_circuit_t *circ =
helper_create_origin_circuit(CIRCUIT_PURPOSE_C_GENERAL, 0);
edge_connection_t *edgeconn;
entry_connection_t *entryconn;
circ->cpath->state = CPATH_STATE_AWAITING_KEYS;
circ->cpath->deliver_window = CIRCWINDOW_START;
entryconn = fake_entry_conn(circ, 23);
edgeconn = ENTRY_TO_EDGE_CONN(entryconn);
(void)arg;
/* Suppress the WARN message we generate in this test */
setup_full_capture_of_logs(LOG_WARN);
MOCK(connection_mark_for_close_internal_, mock_mark_for_close);
/* Verify that get_unique_stream_id_by_circ() can wrap uint16_t */
circ->next_stream_id = 65530;
halfstream_insert(circ, edgeconn, NULL, 7, 0);
tt_int_op(circ->next_stream_id, OP_EQ, 2);
tt_int_op(smartlist_len(circ->half_streams), OP_EQ, 7);
/* Insert full-1 */
halfstream_insert(circ, edgeconn, NULL,
65534-smartlist_len(circ->half_streams), 0);
tt_int_op(smartlist_len(circ->half_streams), OP_EQ, 65534);
/* Verify that we can get_unique_stream_id_by_circ() successfully */
edgeconn->stream_id = get_unique_stream_id_by_circ(circ);
tt_int_op(edgeconn->stream_id, OP_NE, 0); /* 0 is failure */
/* Insert an opened stream on the circ with that id */
ENTRY_TO_CONN(entryconn)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn)->outbuf_flushlen = 0;
edgeconn->base_.state = AP_CONN_STATE_CONNECT_WAIT;
circ->p_streams = edgeconn;
/* Verify that get_unique_stream_id_by_circ() fails */
tt_int_op(get_unique_stream_id_by_circ(circ), OP_EQ, 0); /* 0 is failure */
/* eof the one opened stream. Verify it is now in half-closed */
tt_int_op(smartlist_len(circ->half_streams), OP_EQ, 65534);
connection_edge_reached_eof(edgeconn);
tt_int_op(smartlist_len(circ->half_streams), OP_EQ, 65535);
/* Verify get_unique_stream_id_by_circ() fails due to full half-closed */
circ->p_streams = NULL;
tt_int_op(get_unique_stream_id_by_circ(circ), OP_EQ, 0); /* 0 is failure */
done:
circuit_free_(TO_CIRCUIT(circ));
connection_free_minimal(ENTRY_TO_CONN(entryconn));
UNMOCK(connection_mark_for_close_internal_);
}
static void
test_circbw_relay(void *arg)
{
cell_t cell;
relay_header_t rh;
tor_addr_t addr;
edge_connection_t *edgeconn;
entry_connection_t *entryconn1=NULL;
origin_circuit_t *circ;
int delivered = 0;
int overhead = 0;
(void)arg;
MOCK(connection_mark_unattached_ap_, mock_connection_mark_unattached_ap_);
MOCK(connection_start_reading, mock_start_reading);
MOCK(connection_mark_for_close_internal_, mock_mark_for_close);
MOCK(relay_send_command_from_edge_, mock_send_command);
MOCK(circuit_mark_for_close_, mock_mark_circ_for_close);
entryconn = entry_connection_new(CONN_TYPE_AP, AF_INET);
edgeconn = ENTRY_TO_EDGE_CONN(entryconn);
edgeconn->base_.state = AP_CONN_STATE_CONNECT_WAIT;
edgeconn->deliver_window = 1000;
circ = helper_create_origin_circuit(CIRCUIT_PURPOSE_C_GENERAL, 0);
edgeconn->cpath_layer = circ->cpath;
circ->cpath->state = CPATH_STATE_AWAITING_KEYS;
circ->cpath->deliver_window = 1000;
circ->cpath->deliver_window = CIRCWINDOW_START;
entryconn1 = fake_entry_conn(circ, 1);
edgeconn = ENTRY_TO_EDGE_CONN(entryconn1);
/* Stream id 0: Not counted */
PACK_CELL(0, RELAY_COMMAND_END, "Data1234");
@ -197,7 +744,7 @@ test_circbw_relay(void *arg)
/* Properly formatted resolved cell in correct state: counted */
edgeconn->base_.state = AP_CONN_STATE_RESOLVE_WAIT;
entryconn->socks_request->command = SOCKS_COMMAND_RESOLVE;
entryconn1->socks_request->command = SOCKS_COMMAND_RESOLVE;
edgeconn->on_circuit = TO_CIRCUIT(circ);
PACK_CELL(1, RELAY_COMMAND_RESOLVED,
"\x04\x04\x12\x00\x00\x01\x00\x00\x02\x00");
@ -206,7 +753,7 @@ test_circbw_relay(void *arg)
ASSERT_COUNTED_BW();
edgeconn->base_.state = AP_CONN_STATE_OPEN;
entryconn->socks_request->has_finished = 1;
entryconn1->socks_request->has_finished = 1;
/* Connected cell after open: not counted */
PACK_CELL(1, RELAY_COMMAND_CONNECTED, "Data1234");
@ -227,42 +774,43 @@ test_circbw_relay(void *arg)
ASSERT_UNCOUNTED_BW();
/* Data cell on stream 0: not counted */
PACK_CELL(1, RELAY_COMMAND_DATA, "Data1234");
PACK_CELL(0, RELAY_COMMAND_DATA, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Data cell on open connection: counted */
ENTRY_TO_CONN(entryconn)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn1)->marked_for_close = 0;
PACK_CELL(1, RELAY_COMMAND_DATA, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_COUNTED_BW();
/* Empty Data cell on open connection: not counted */
ENTRY_TO_CONN(entryconn)->marked_for_close = 0;
ENTRY_TO_CONN(entryconn1)->marked_for_close = 0;
PACK_CELL(1, RELAY_COMMAND_DATA, "");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Sendme on valid stream: counted */
ENTRY_TO_CONN(entryconn)->outbuf_flushlen = 0;
edgeconn->package_window -= STREAMWINDOW_INCREMENT;
ENTRY_TO_CONN(entryconn1)->outbuf_flushlen = 0;
PACK_CELL(1, RELAY_COMMAND_SENDME, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_COUNTED_BW();
/* Sendme on valid stream with full window: not counted */
ENTRY_TO_CONN(entryconn)->outbuf_flushlen = 0;
ENTRY_TO_CONN(entryconn1)->outbuf_flushlen = 0;
PACK_CELL(1, RELAY_COMMAND_SENDME, "Data1234");
edgeconn->package_window = 500;
edgeconn->package_window = STREAMWINDOW_START;
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Sendme on unknown stream: not counted */
ENTRY_TO_CONN(entryconn)->outbuf_flushlen = 0;
ENTRY_TO_CONN(entryconn1)->outbuf_flushlen = 0;
PACK_CELL(1, RELAY_COMMAND_SENDME, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
@ -281,18 +829,6 @@ test_circbw_relay(void *arg)
circ->cpath);
ASSERT_COUNTED_BW();
/* End cell on non-closed connection: counted */
PACK_CELL(1, RELAY_COMMAND_END, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_COUNTED_BW();
/* End cell on connection that already got one: not counted */
PACK_CELL(1, RELAY_COMMAND_END, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Invalid extended cell: not counted */
PACK_CELL(1, RELAY_COMMAND_EXTENDED2, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
@ -318,12 +854,40 @@ test_circbw_relay(void *arg)
circ->cpath);
ASSERT_COUNTED_BW();
/* End cell on non-closed connection: counted */
PACK_CELL(1, RELAY_COMMAND_END, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), edgeconn,
circ->cpath);
ASSERT_COUNTED_BW();
/* End cell on connection that already got one: not counted */
PACK_CELL(1, RELAY_COMMAND_END, "Data1234");
connection_edge_process_relay_cell(&cell, TO_CIRCUIT(circ), NULL,
circ->cpath);
ASSERT_UNCOUNTED_BW();
/* Simulate closed stream on entryconn, then test: */
if (!subtest_circbw_halfclosed(circ, 2))
goto done;
circ->base_.purpose = CIRCUIT_PURPOSE_PATH_BIAS_TESTING;
if (!subtest_circbw_halfclosed(circ, 6))
goto done;
/* Path bias: truncated */
tt_int_op(circ->base_.marked_for_close, OP_EQ, 0);
PACK_CELL(0, RELAY_COMMAND_TRUNCATED, "Data1234");
pathbias_count_valid_cells(circ, &cell);
tt_int_op(circ->base_.marked_for_close, OP_EQ, 1);
done:
UNMOCK(connection_start_reading);
UNMOCK(connection_mark_unattached_ap_);
UNMOCK(connection_mark_for_close_internal_);
UNMOCK(relay_send_command_from_edge_);
UNMOCK(circuit_mark_for_close_);
circuit_free_(TO_CIRCUIT(circ));
connection_free_minimal(ENTRY_TO_CONN(entryconn));
connection_free_minimal(ENTRY_TO_CONN(entryconn1));
}
/* Tests for connection_edge_process_resolved_cell().
@ -511,6 +1075,8 @@ test_relaycell_resolved(void *arg)
struct testcase_t relaycell_tests[] = {
{ "resolved", test_relaycell_resolved, TT_FORK, NULL, NULL },
{ "circbw", test_circbw_relay, TT_FORK, NULL, NULL },
{ "halfstream", test_halfstream_insertremove, TT_FORK, NULL, NULL },
{ "streamwrap", test_halfstream_wrap, TT_FORK, NULL, NULL },
END_OF_TESTCASES
};