mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-10 13:13:44 +01:00
Merge remote-tracking branch 'public/Fix_19450'
This commit is contained in:
commit
7f145b54af
3
changes/19450
Normal file
3
changes/19450
Normal file
@ -0,0 +1,3 @@
|
||||
o Removed code:
|
||||
- We no longer include the (dead, deprecated) bufferevent code in
|
||||
Tor. Closes ticket 19450. Based on a patch from U+039b.
|
36
configure.ac
36
configure.ac
@ -161,9 +161,6 @@ AC_ARG_ENABLE(tor2web-mode,
|
||||
CFLAGS="$CFLAGS -D ENABLE_TOR2WEB_MODE=1"
|
||||
fi])
|
||||
|
||||
AC_ARG_ENABLE(bufferevents,
|
||||
AS_HELP_STRING(--enable-bufferevents, [use Libevent's buffered IO]))
|
||||
|
||||
AC_ARG_ENABLE(tool-name-check,
|
||||
AS_HELP_STRING(--disable-tool-name-check, [check for sanely named toolchain when cross-compiling]))
|
||||
|
||||
@ -552,39 +549,6 @@ LIBS="$save_LIBS"
|
||||
LDFLAGS="$save_LDFLAGS"
|
||||
CPPFLAGS="$save_CPPFLAGS"
|
||||
|
||||
dnl bufferents require version 2.0.13
|
||||
if test "$enable_bufferevents" = "yes"; then
|
||||
AC_CHECK_HEADERS(event2/bufferevent_ssl.h)
|
||||
|
||||
CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent"
|
||||
|
||||
AC_MSG_CHECKING([whether Libevent is new enough for bufferevents])
|
||||
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
|
||||
#include <event2/event.h>
|
||||
#if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000d00
|
||||
#error
|
||||
int x = y(zz);
|
||||
#else
|
||||
int x = 1;
|
||||
#endif
|
||||
])], [ AC_MSG_RESULT([yes]) ],
|
||||
[ AC_MSG_RESULT([no])
|
||||
AC_MSG_ERROR([Libevent does not seem new enough to support bufferevents. We require 2.0.13-stable or later]) ] )
|
||||
fi
|
||||
|
||||
LIBS="$save_LIBS"
|
||||
LDFLAGS="$save_LDFLAGS"
|
||||
CPPFLAGS="$save_CPPFLAGS"
|
||||
|
||||
AM_CONDITIONAL(USE_BUFFEREVENTS, test "$enable_bufferevents" = "yes")
|
||||
if test "$enable_bufferevents" = "yes"; then
|
||||
AC_DEFINE(USE_BUFFEREVENTS, 1, [Defined if we're going to use Libevent's buffered IO API])
|
||||
if test "$enable_static_libevent" = "yes"; then
|
||||
TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent_openssl.a $TOR_LIBEVENT_LIBS"
|
||||
else
|
||||
TOR_LIBEVENT_LIBS="-levent_openssl $TOR_LIBEVENT_LIBS"
|
||||
fi
|
||||
fi
|
||||
AC_SUBST(TOR_LIBEVENT_LIBS)
|
||||
|
||||
dnl ------------------------------------------------------
|
||||
|
@ -705,26 +705,6 @@ GENERAL OPTIONS
|
||||
networkstatus. This is an advanced option; you generally shouldn't have
|
||||
to mess with it. (Default: not set)
|
||||
|
||||
[[DisableIOCP]] **DisableIOCP** **0**|**1**::
|
||||
If Tor was built to use the Libevent's "bufferevents" networking code
|
||||
and you're running on Windows, setting this option to 1 will tell Libevent
|
||||
not to use the Windows IOCP networking API. (Default: 1)
|
||||
|
||||
[[UserspaceIOCPBuffers]] **UserspaceIOCPBuffers** **0**|**1**::
|
||||
If IOCP is enabled (see DisableIOCP above), setting this option to 1
|
||||
will tell Tor to disable kernel-space TCP buffers, in order to avoid
|
||||
needless copy operations and try not to run out of non-paged RAM.
|
||||
This feature is experimental; don't use it yet unless you're eager to
|
||||
help tracking down bugs. (Default: 0)
|
||||
|
||||
[[UseFilteringSSLBufferevents]] **UseFilteringSSLBufferevents** **0**|**1**::
|
||||
Tells Tor to do its SSL communication using a chain of
|
||||
bufferevents: one for SSL and one for networking. This option has no
|
||||
effect if bufferevents are disabled (in which case it can't turn on), or
|
||||
if IOCP bufferevents are enabled (in which case it can't turn off). This
|
||||
option is useful for debugging only; most users shouldn't touch it.
|
||||
(Default: 0)
|
||||
|
||||
[[CountPrivateBandwidth]] **CountPrivateBandwidth** **0**|**1**::
|
||||
If this option is set, then Tor's rate-limiting applies not only to
|
||||
remote connections, but also to connections to private addresses like
|
||||
|
@ -18,9 +18,6 @@
|
||||
|
||||
#include <event2/event.h>
|
||||
#include <event2/thread.h>
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent.h>
|
||||
#endif
|
||||
|
||||
/** A string which, if it appears in a libevent log, should be ignored. */
|
||||
static const char *suppress_msg = NULL;
|
||||
@ -94,17 +91,6 @@ static struct event_base *the_event_base = NULL;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
static int using_iocp_bufferevents = 0;
|
||||
static void tor_libevent_set_tick_timeout(int msec_per_tick);
|
||||
|
||||
int
|
||||
tor_libevent_using_iocp_bufferevents(void)
|
||||
{
|
||||
return using_iocp_bufferevents;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Initialize the Libevent library and set up the event base. */
|
||||
void
|
||||
tor_libevent_initialize(tor_libevent_cfg *torcfg)
|
||||
@ -115,34 +101,15 @@ tor_libevent_initialize(tor_libevent_cfg *torcfg)
|
||||
|
||||
{
|
||||
int attempts = 0;
|
||||
int using_threads;
|
||||
struct event_config *cfg;
|
||||
|
||||
retry:
|
||||
++attempts;
|
||||
using_threads = 0;
|
||||
cfg = event_config_new();
|
||||
tor_assert(cfg);
|
||||
|
||||
#if defined(_WIN32) && defined(USE_BUFFEREVENTS)
|
||||
if (! torcfg->disable_iocp) {
|
||||
evthread_use_windows_threads();
|
||||
event_config_set_flag(cfg, EVENT_BASE_FLAG_STARTUP_IOCP);
|
||||
using_iocp_bufferevents = 1;
|
||||
using_threads = 1;
|
||||
} else {
|
||||
using_iocp_bufferevents = 0;
|
||||
}
|
||||
#elif defined(__COVERITY__)
|
||||
/* Avoid a 'dead code' warning below. */
|
||||
using_threads = ! torcfg->disable_iocp;
|
||||
#endif
|
||||
|
||||
if (!using_threads) {
|
||||
/* Telling Libevent not to try to turn locking on can avoid a needless
|
||||
* socketpair() attempt. */
|
||||
event_config_set_flag(cfg, EVENT_BASE_FLAG_NOLOCK);
|
||||
}
|
||||
/* Telling Libevent not to try to turn locking on can avoid a needless
|
||||
* socketpair() attempt. */
|
||||
event_config_set_flag(cfg, EVENT_BASE_FLAG_NOLOCK);
|
||||
|
||||
if (torcfg->num_cpus > 0)
|
||||
event_config_set_num_cpus_hint(cfg, torcfg->num_cpus);
|
||||
@ -154,24 +121,6 @@ tor_libevent_initialize(tor_libevent_cfg *torcfg)
|
||||
the_event_base = event_base_new_with_config(cfg);
|
||||
|
||||
event_config_free(cfg);
|
||||
|
||||
if (using_threads && the_event_base == NULL && attempts < 2) {
|
||||
/* This could be a socketpair() failure, which can happen sometimes on
|
||||
* windows boxes with obnoxious firewall rules. Downgrade and try
|
||||
* again. */
|
||||
#if defined(_WIN32) && defined(USE_BUFFEREVENTS)
|
||||
if (torcfg->disable_iocp == 0) {
|
||||
log_warn(LD_GENERAL, "Unable to initialize Libevent. Trying again "
|
||||
"with IOCP disabled.");
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
log_warn(LD_GENERAL, "Unable to initialize Libevent. Trying again.");
|
||||
}
|
||||
|
||||
torcfg->disable_iocp = 1;
|
||||
goto retry;
|
||||
}
|
||||
}
|
||||
|
||||
if (!the_event_base) {
|
||||
@ -184,10 +133,6 @@ tor_libevent_initialize(tor_libevent_cfg *torcfg)
|
||||
log_info(LD_GENERAL,
|
||||
"Initialized libevent version %s using method %s. Good.",
|
||||
event_get_version(), tor_libevent_get_method());
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
tor_libevent_set_tick_timeout(torcfg->msec_per_tick);
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Return the current Libevent event base that we're set up to use. */
|
||||
@ -276,58 +221,6 @@ periodic_timer_free(periodic_timer_t *timer)
|
||||
tor_free(timer);
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
static const struct timeval *one_tick = NULL;
|
||||
/**
|
||||
* Return a special timeout to be passed whenever libevent's O(1) timeout
|
||||
* implementation should be used. Only use this when the timer is supposed
|
||||
* to fire after msec_per_tick ticks have elapsed.
|
||||
*/
|
||||
const struct timeval *
|
||||
tor_libevent_get_one_tick_timeout(void)
|
||||
{
|
||||
tor_assert(one_tick);
|
||||
return one_tick;
|
||||
}
|
||||
|
||||
/** Initialize the common timeout that we'll use to refill the buckets every
|
||||
* time a tick elapses. */
|
||||
static void
|
||||
tor_libevent_set_tick_timeout(int msec_per_tick)
|
||||
{
|
||||
struct event_base *base = tor_libevent_get_base();
|
||||
struct timeval tv;
|
||||
|
||||
tor_assert(! one_tick);
|
||||
tv.tv_sec = msec_per_tick / 1000;
|
||||
tv.tv_usec = (msec_per_tick % 1000) * 1000;
|
||||
one_tick = event_base_init_common_timeout(base, &tv);
|
||||
}
|
||||
|
||||
static struct bufferevent *
|
||||
tor_get_root_bufferevent(struct bufferevent *bev)
|
||||
{
|
||||
struct bufferevent *u;
|
||||
while ((u = bufferevent_get_underlying(bev)) != NULL)
|
||||
bev = u;
|
||||
return bev;
|
||||
}
|
||||
|
||||
int
|
||||
tor_set_bufferevent_rate_limit(struct bufferevent *bev,
|
||||
struct ev_token_bucket_cfg *cfg)
|
||||
{
|
||||
return bufferevent_set_rate_limit(tor_get_root_bufferevent(bev), cfg);
|
||||
}
|
||||
|
||||
int
|
||||
tor_add_bufferevent_to_rate_limit_group(struct bufferevent *bev,
|
||||
struct bufferevent_rate_limit_group *g)
|
||||
{
|
||||
return bufferevent_add_to_rate_limit_group(tor_get_root_bufferevent(bev), g);
|
||||
}
|
||||
#endif
|
||||
|
||||
int
|
||||
tor_init_libevent_rng(void)
|
||||
{
|
||||
|
@ -9,10 +9,6 @@
|
||||
|
||||
#include <event2/event.h>
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent.h>
|
||||
#endif
|
||||
|
||||
void configure_libevent_logging(void);
|
||||
void suppress_libevent_log_msg(const char *msg);
|
||||
|
||||
@ -38,12 +34,10 @@ void periodic_timer_free(periodic_timer_t *);
|
||||
/** Defines a configuration for using libevent with Tor: passed as an argument
|
||||
* to tor_libevent_initialize() to describe how we want to set up. */
|
||||
typedef struct tor_libevent_cfg {
|
||||
/** Flag: if true, disable IOCP (assuming that it could be enabled). */
|
||||
int disable_iocp;
|
||||
/** How many CPUs should we use (relevant only with IOCP). */
|
||||
/** How many CPUs should we use (not currently useful). */
|
||||
int num_cpus;
|
||||
/** How many milliseconds should we allow between updating bandwidth limits?
|
||||
* (relevant only with bufferevents). */
|
||||
* (Not currently useful). */
|
||||
int msec_per_tick;
|
||||
} tor_libevent_cfg;
|
||||
|
||||
@ -54,15 +48,6 @@ void tor_check_libevent_header_compatibility(void);
|
||||
const char *tor_libevent_get_version_str(void);
|
||||
const char *tor_libevent_get_header_version_str(void);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
const struct timeval *tor_libevent_get_one_tick_timeout(void);
|
||||
int tor_libevent_using_iocp_bufferevents(void);
|
||||
int tor_set_bufferevent_rate_limit(struct bufferevent *bev,
|
||||
struct ev_token_bucket_cfg *cfg);
|
||||
int tor_add_bufferevent_to_rate_limit_group(struct bufferevent *bev,
|
||||
struct bufferevent_rate_limit_group *g);
|
||||
#endif
|
||||
|
||||
int tor_init_libevent_rng(void);
|
||||
|
||||
void tor_gettimeofday_cached(struct timeval *tv);
|
||||
|
@ -48,13 +48,6 @@ DISABLE_GCC_WARNING(redundant-decls)
|
||||
|
||||
ENABLE_GCC_WARNING(redundant-decls)
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent_ssl.h>
|
||||
#include <event2/buffer.h>
|
||||
#include <event2/event.h>
|
||||
#include "compat_libevent.h"
|
||||
#endif
|
||||
|
||||
#define TORTLS_PRIVATE
|
||||
#include "tortls.h"
|
||||
#include "util.h"
|
||||
@ -2486,78 +2479,6 @@ tor_tls_get_buffer_sizes(tor_tls_t *tls,
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** Construct and return an TLS-encrypting bufferevent to send data over
|
||||
* <b>socket</b>, which must match the socket of the underlying bufferevent
|
||||
* <b>bufev_in</b>. The TLS object <b>tls</b> is used for encryption.
|
||||
*
|
||||
* This function will either create a filtering bufferevent that wraps around
|
||||
* <b>bufev_in</b>, or it will free bufev_in and return a new bufferevent that
|
||||
* uses the <b>tls</b> to talk to the network directly. Do not use
|
||||
* <b>bufev_in</b> after calling this function.
|
||||
*
|
||||
* The connection will start out doing a server handshake if <b>receiving</b>
|
||||
* is strue, and a client handshake otherwise.
|
||||
*
|
||||
* Returns NULL on failure.
|
||||
*/
|
||||
struct bufferevent *
|
||||
tor_tls_init_bufferevent(tor_tls_t *tls, struct bufferevent *bufev_in,
|
||||
evutil_socket_t socket, int receiving,
|
||||
int filter)
|
||||
{
|
||||
struct bufferevent *out;
|
||||
const enum bufferevent_ssl_state state = receiving ?
|
||||
BUFFEREVENT_SSL_ACCEPTING : BUFFEREVENT_SSL_CONNECTING;
|
||||
|
||||
if (filter || tor_libevent_using_iocp_bufferevents()) {
|
||||
/* Grab an extra reference to the SSL, since BEV_OPT_CLOSE_ON_FREE
|
||||
means that the SSL will get freed too.
|
||||
|
||||
This increment makes our SSL usage not-threadsafe, BTW. We should
|
||||
see if we're allowed to use CRYPTO_add from outside openssl. */
|
||||
tls->ssl->references += 1;
|
||||
out = bufferevent_openssl_filter_new(tor_libevent_get_base(),
|
||||
bufev_in,
|
||||
tls->ssl,
|
||||
state,
|
||||
BEV_OPT_DEFER_CALLBACKS|
|
||||
BEV_OPT_CLOSE_ON_FREE);
|
||||
/* Tell the underlying bufferevent when to accept more data from the SSL
|
||||
filter (only when it's got less than 32K to write), and when to notify
|
||||
the SSL filter that it could write more (when it drops under 24K). */
|
||||
bufferevent_setwatermark(bufev_in, EV_WRITE, 24*1024, 32*1024);
|
||||
} else {
|
||||
if (bufev_in) {
|
||||
evutil_socket_t s = bufferevent_getfd(bufev_in);
|
||||
tor_assert(s == -1 || s == socket);
|
||||
tor_assert(evbuffer_get_length(bufferevent_get_input(bufev_in)) == 0);
|
||||
tor_assert(evbuffer_get_length(bufferevent_get_output(bufev_in)) == 0);
|
||||
tor_assert(BIO_number_read(SSL_get_rbio(tls->ssl)) == 0);
|
||||
tor_assert(BIO_number_written(SSL_get_rbio(tls->ssl)) == 0);
|
||||
bufferevent_free(bufev_in);
|
||||
}
|
||||
|
||||
/* Current versions (as of 2.0.x) of Libevent need to defer
|
||||
* bufferevent_openssl callbacks, or else our callback functions will
|
||||
* get called reentrantly, which is bad for us.
|
||||
*/
|
||||
out = bufferevent_openssl_socket_new(tor_libevent_get_base(),
|
||||
socket,
|
||||
tls->ssl,
|
||||
state,
|
||||
BEV_OPT_DEFER_CALLBACKS);
|
||||
}
|
||||
tls->state = TOR_TLS_ST_BUFFEREVENT;
|
||||
|
||||
/* Unblock _after_ creating the bufferevent, since accept/connect tend to
|
||||
* clear flags. */
|
||||
tor_tls_unblock_renegotiation(tls);
|
||||
|
||||
return out;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Check whether the ECC group requested is supported by the current OpenSSL
|
||||
* library instance. Return 1 if the group is supported, and 0 if not.
|
||||
*/
|
||||
|
@ -235,14 +235,6 @@ void check_no_tls_errors_(const char *fname, int line);
|
||||
void tor_tls_log_one_error(tor_tls_t *tls, unsigned long err,
|
||||
int severity, int domain, const char *doing);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
int tor_tls_start_renegotiating(tor_tls_t *tls);
|
||||
struct bufferevent *tor_tls_init_bufferevent(tor_tls_t *tls,
|
||||
struct bufferevent *bufev_in,
|
||||
evutil_socket_t socket, int receiving,
|
||||
int filter);
|
||||
#endif
|
||||
|
||||
void tor_x509_cert_free(tor_x509_cert_t *cert);
|
||||
tor_x509_cert_t *tor_x509_cert_decode(const uint8_t *certificate,
|
||||
size_t certificate_len);
|
||||
|
419
src/or/buffers.c
419
src/or/buffers.c
@ -913,97 +913,6 @@ fetch_var_cell_from_buf(buf_t *buf, var_cell_t **out, int linkproto)
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** Try to read <b>n</b> bytes from <b>buf</b> at <b>pos</b> (which may be
|
||||
* NULL for the start of the buffer), copying the data only if necessary. Set
|
||||
* *<b>data_out</b> to a pointer to the desired bytes. Set <b>free_out</b>
|
||||
* to 1 if we needed to malloc *<b>data</b> because the original bytes were
|
||||
* noncontiguous; 0 otherwise. Return the number of bytes actually available
|
||||
* at *<b>data_out</b>.
|
||||
*/
|
||||
static ssize_t
|
||||
inspect_evbuffer(struct evbuffer *buf, char **data_out, size_t n,
|
||||
int *free_out, struct evbuffer_ptr *pos)
|
||||
{
|
||||
int n_vecs, i;
|
||||
|
||||
if (evbuffer_get_length(buf) < n)
|
||||
n = evbuffer_get_length(buf);
|
||||
if (n == 0)
|
||||
return 0;
|
||||
n_vecs = evbuffer_peek(buf, n, pos, NULL, 0);
|
||||
tor_assert(n_vecs > 0);
|
||||
if (n_vecs == 1) {
|
||||
struct evbuffer_iovec v;
|
||||
i = evbuffer_peek(buf, n, pos, &v, 1);
|
||||
tor_assert(i == 1);
|
||||
*data_out = v.iov_base;
|
||||
*free_out = 0;
|
||||
return v.iov_len;
|
||||
} else {
|
||||
ev_ssize_t copied;
|
||||
*data_out = tor_malloc(n);
|
||||
*free_out = 1;
|
||||
copied = evbuffer_copyout(buf, *data_out, n);
|
||||
tor_assert(copied >= 0 && (size_t)copied == n);
|
||||
return copied;
|
||||
}
|
||||
}
|
||||
|
||||
/** As fetch_var_cell_from_buf, buf works on an evbuffer. */
|
||||
int
|
||||
fetch_var_cell_from_evbuffer(struct evbuffer *buf, var_cell_t **out,
|
||||
int linkproto)
|
||||
{
|
||||
char *hdr = NULL;
|
||||
int free_hdr = 0;
|
||||
size_t n;
|
||||
size_t buf_len;
|
||||
uint8_t command;
|
||||
uint16_t cell_length;
|
||||
var_cell_t *cell;
|
||||
int result = 0;
|
||||
const int wide_circ_ids = linkproto >= MIN_LINK_PROTO_FOR_WIDE_CIRC_IDS;
|
||||
const int circ_id_len = get_circ_id_size(wide_circ_ids);
|
||||
const unsigned header_len = get_var_cell_header_size(wide_circ_ids);
|
||||
|
||||
*out = NULL;
|
||||
buf_len = evbuffer_get_length(buf);
|
||||
if (buf_len < header_len)
|
||||
return 0;
|
||||
|
||||
n = inspect_evbuffer(buf, &hdr, header_len, &free_hdr, NULL);
|
||||
tor_assert(n >= header_len);
|
||||
|
||||
command = get_uint8(hdr + circ_id_len);
|
||||
if (!(cell_command_is_var_length(command, linkproto))) {
|
||||
goto done;
|
||||
}
|
||||
|
||||
cell_length = ntohs(get_uint16(hdr + circ_id_len + 1));
|
||||
if (buf_len < (size_t)(header_len+cell_length)) {
|
||||
result = 1; /* Not all here yet. */
|
||||
goto done;
|
||||
}
|
||||
|
||||
cell = var_cell_new(cell_length);
|
||||
cell->command = command;
|
||||
if (wide_circ_ids)
|
||||
cell->circ_id = ntohl(get_uint32(hdr));
|
||||
else
|
||||
cell->circ_id = ntohs(get_uint16(hdr));
|
||||
evbuffer_drain(buf, header_len);
|
||||
evbuffer_remove(buf, cell->payload, cell_length);
|
||||
*out = cell;
|
||||
result = 1;
|
||||
|
||||
done:
|
||||
if (free_hdr && hdr)
|
||||
tor_free(hdr);
|
||||
return result;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Move up to *<b>buf_flushlen</b> bytes from <b>buf_in</b> to
|
||||
* <b>buf_out</b>, and modify *<b>buf_flushlen</b> appropriately.
|
||||
* Return the number of bytes actually copied.
|
||||
@ -1246,94 +1155,6 @@ fetch_from_buf_http(buf_t *buf,
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** As fetch_from_buf_http, buf works on an evbuffer. */
|
||||
int
|
||||
fetch_from_evbuffer_http(struct evbuffer *buf,
|
||||
char **headers_out, size_t max_headerlen,
|
||||
char **body_out, size_t *body_used, size_t max_bodylen,
|
||||
int force_complete)
|
||||
{
|
||||
struct evbuffer_ptr crlf, content_length;
|
||||
size_t headerlen, bodylen, contentlen;
|
||||
|
||||
/* Find the first \r\n\r\n in the buffer */
|
||||
crlf = evbuffer_search(buf, "\r\n\r\n", 4, NULL);
|
||||
if (crlf.pos < 0) {
|
||||
/* We didn't find one. */
|
||||
if (evbuffer_get_length(buf) > max_headerlen)
|
||||
return -1; /* Headers too long. */
|
||||
return 0; /* Headers not here yet. */
|
||||
} else if (crlf.pos > (int)max_headerlen) {
|
||||
return -1; /* Headers too long. */
|
||||
}
|
||||
|
||||
headerlen = crlf.pos + 4; /* Skip over the \r\n\r\n */
|
||||
bodylen = evbuffer_get_length(buf) - headerlen;
|
||||
if (bodylen > max_bodylen)
|
||||
return -1; /* body too long */
|
||||
|
||||
/* Look for the first occurrence of CONTENT_LENGTH insize buf before the
|
||||
* crlfcrlf */
|
||||
content_length = evbuffer_search_range(buf, CONTENT_LENGTH,
|
||||
strlen(CONTENT_LENGTH), NULL, &crlf);
|
||||
|
||||
if (content_length.pos >= 0) {
|
||||
/* We found a content_length: parse it and figure out if the body is here
|
||||
* yet. */
|
||||
struct evbuffer_ptr eol;
|
||||
char *data = NULL;
|
||||
int free_data = 0;
|
||||
int n, i;
|
||||
n = evbuffer_ptr_set(buf, &content_length, strlen(CONTENT_LENGTH),
|
||||
EVBUFFER_PTR_ADD);
|
||||
tor_assert(n == 0);
|
||||
eol = evbuffer_search_eol(buf, &content_length, NULL, EVBUFFER_EOL_CRLF);
|
||||
tor_assert(eol.pos > content_length.pos);
|
||||
tor_assert(eol.pos <= crlf.pos);
|
||||
inspect_evbuffer(buf, &data, eol.pos - content_length.pos, &free_data,
|
||||
&content_length);
|
||||
|
||||
i = atoi(data);
|
||||
if (free_data)
|
||||
tor_free(data);
|
||||
if (i < 0) {
|
||||
log_warn(LD_PROTOCOL, "Content-Length is less than zero; it looks like "
|
||||
"someone is trying to crash us.");
|
||||
return -1;
|
||||
}
|
||||
contentlen = i;
|
||||
/* if content-length is malformed, then our body length is 0. fine. */
|
||||
log_debug(LD_HTTP,"Got a contentlen of %d.",(int)contentlen);
|
||||
if (bodylen < contentlen) {
|
||||
if (!force_complete) {
|
||||
log_debug(LD_HTTP,"body not all here yet.");
|
||||
return 0; /* not all there yet */
|
||||
}
|
||||
}
|
||||
if (bodylen > contentlen) {
|
||||
bodylen = contentlen;
|
||||
log_debug(LD_HTTP,"bodylen reduced to %d.",(int)bodylen);
|
||||
}
|
||||
}
|
||||
|
||||
if (headers_out) {
|
||||
*headers_out = tor_malloc(headerlen+1);
|
||||
evbuffer_remove(buf, *headers_out, headerlen);
|
||||
(*headers_out)[headerlen] = '\0';
|
||||
}
|
||||
if (body_out) {
|
||||
tor_assert(headers_out);
|
||||
tor_assert(body_used);
|
||||
*body_used = bodylen;
|
||||
*body_out = tor_malloc(bodylen+1);
|
||||
evbuffer_remove(buf, *body_out, bodylen);
|
||||
(*body_out)[bodylen] = '\0';
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Wait this many seconds before warning the user about using SOCKS unsafely
|
||||
* again (requires that WarnUnsafeSocks is turned on). */
|
||||
@ -1453,86 +1274,6 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req,
|
||||
return res;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/* As fetch_from_buf_socks(), but targets an evbuffer instead. */
|
||||
int
|
||||
fetch_from_evbuffer_socks(struct evbuffer *buf, socks_request_t *req,
|
||||
int log_sockstype, int safe_socks)
|
||||
{
|
||||
char *data;
|
||||
ssize_t n_drain;
|
||||
size_t datalen, buflen, want_length;
|
||||
int res;
|
||||
|
||||
buflen = evbuffer_get_length(buf);
|
||||
if (buflen < 2)
|
||||
return 0;
|
||||
|
||||
{
|
||||
/* See if we can find the socks request in the first chunk of the buffer.
|
||||
*/
|
||||
struct evbuffer_iovec v;
|
||||
int i;
|
||||
n_drain = 0;
|
||||
i = evbuffer_peek(buf, -1, NULL, &v, 1);
|
||||
tor_assert(i == 1);
|
||||
data = v.iov_base;
|
||||
datalen = v.iov_len;
|
||||
want_length = 0;
|
||||
|
||||
res = parse_socks(data, datalen, req, log_sockstype,
|
||||
safe_socks, &n_drain, &want_length);
|
||||
|
||||
if (n_drain < 0)
|
||||
evbuffer_drain(buf, evbuffer_get_length(buf));
|
||||
else if (n_drain > 0)
|
||||
evbuffer_drain(buf, n_drain);
|
||||
|
||||
if (res)
|
||||
return res;
|
||||
}
|
||||
|
||||
/* Okay, the first chunk of the buffer didn't have a complete socks request.
|
||||
* That means that either we don't have a whole socks request at all, or
|
||||
* it's gotten split up. We're going to try passing parse_socks() bigger
|
||||
* and bigger chunks until either it says "Okay, I got it", or it says it
|
||||
* will need more data than we currently have. */
|
||||
|
||||
/* Loop while we have more data that we haven't given parse_socks() yet. */
|
||||
do {
|
||||
int free_data = 0;
|
||||
const size_t last_wanted = want_length;
|
||||
n_drain = 0;
|
||||
data = NULL;
|
||||
datalen = inspect_evbuffer(buf, &data, want_length, &free_data, NULL);
|
||||
|
||||
want_length = 0;
|
||||
res = parse_socks(data, datalen, req, log_sockstype,
|
||||
safe_socks, &n_drain, &want_length);
|
||||
|
||||
if (free_data)
|
||||
tor_free(data);
|
||||
|
||||
if (n_drain < 0)
|
||||
evbuffer_drain(buf, evbuffer_get_length(buf));
|
||||
else if (n_drain > 0)
|
||||
evbuffer_drain(buf, n_drain);
|
||||
|
||||
if (res == 0 && n_drain == 0 && want_length <= last_wanted) {
|
||||
/* If we drained nothing, and we didn't ask for more than last time,
|
||||
* then we probably wanted more data than the buffer actually had,
|
||||
* and we're finding out that we're not satisified with it. It's
|
||||
* time to break until we have more data. */
|
||||
break;
|
||||
}
|
||||
|
||||
buflen = evbuffer_get_length(buf);
|
||||
} while (res == 0 && want_length <= buflen && buflen >= 2);
|
||||
|
||||
return res;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** The size of the header of an Extended ORPort message: 2 bytes for
|
||||
* COMMAND, 2 bytes for BODYLEN */
|
||||
#define EXT_OR_CMD_HEADER_SIZE 4
|
||||
@ -1563,34 +1304,6 @@ fetch_ext_or_command_from_buf(buf_t *buf, ext_or_cmd_t **out)
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** Read <b>buf</b>, which should contain an Extended ORPort message
|
||||
* from a transport proxy. If well-formed, create and populate
|
||||
* <b>out</b> with the Extended ORport message. Return 0 if the
|
||||
* buffer was incomplete, 1 if it was well-formed and -1 if we
|
||||
* encountered an error while parsing it. */
|
||||
int
|
||||
fetch_ext_or_command_from_evbuffer(struct evbuffer *buf, ext_or_cmd_t **out)
|
||||
{
|
||||
char hdr[EXT_OR_CMD_HEADER_SIZE];
|
||||
uint16_t len;
|
||||
size_t buf_len = evbuffer_get_length(buf);
|
||||
|
||||
if (buf_len < EXT_OR_CMD_HEADER_SIZE)
|
||||
return 0;
|
||||
evbuffer_copyout(buf, hdr, EXT_OR_CMD_HEADER_SIZE);
|
||||
len = ntohs(get_uint16(hdr+2));
|
||||
if (buf_len < (unsigned)len + EXT_OR_CMD_HEADER_SIZE)
|
||||
return 0;
|
||||
*out = ext_or_cmd_new(len);
|
||||
(*out)->cmd = ntohs(get_uint16(hdr));
|
||||
(*out)->len = len;
|
||||
evbuffer_drain(buf, EXT_OR_CMD_HEADER_SIZE);
|
||||
evbuffer_remove(buf, (*out)->body, len);
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Create a SOCKS5 reply message with <b>reason</b> in its REP field and
|
||||
* have Tor send it as error response to <b>req</b>.
|
||||
*/
|
||||
@ -2035,34 +1748,6 @@ fetch_from_buf_socks_client(buf_t *buf, int state, char **reason)
|
||||
return r;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** As fetch_from_buf_socks_client, buf works on an evbuffer */
|
||||
int
|
||||
fetch_from_evbuffer_socks_client(struct evbuffer *buf, int state,
|
||||
char **reason)
|
||||
{
|
||||
ssize_t drain = 0;
|
||||
uint8_t *data;
|
||||
size_t datalen;
|
||||
int r;
|
||||
|
||||
/* Linearize the SOCKS response in the buffer, up to 128 bytes.
|
||||
* (parse_socks_client shouldn't need to see anything beyond that.) */
|
||||
datalen = evbuffer_get_length(buf);
|
||||
if (datalen > MAX_SOCKS_MESSAGE_LEN)
|
||||
datalen = MAX_SOCKS_MESSAGE_LEN;
|
||||
data = evbuffer_pullup(buf, datalen);
|
||||
|
||||
r = parse_socks_client(data, datalen, state, reason, &drain);
|
||||
if (drain > 0)
|
||||
evbuffer_drain(buf, drain);
|
||||
else if (drain < 0)
|
||||
evbuffer_drain(buf, evbuffer_get_length(buf));
|
||||
|
||||
return r;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Implementation logic for fetch_from_*_socks_client. */
|
||||
static int
|
||||
parse_socks_client(const uint8_t *data, size_t datalen,
|
||||
@ -2193,27 +1878,6 @@ peek_buf_has_control0_command(buf_t *buf)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
int
|
||||
peek_evbuffer_has_control0_command(struct evbuffer *buf)
|
||||
{
|
||||
int result = 0;
|
||||
if (evbuffer_get_length(buf) >= 4) {
|
||||
int free_out = 0;
|
||||
char *data = NULL;
|
||||
size_t n = inspect_evbuffer(buf, &data, 4, &free_out, NULL);
|
||||
uint16_t cmd;
|
||||
tor_assert(n >= 4);
|
||||
cmd = ntohs(get_uint16(data+2));
|
||||
if (cmd <= 0x14)
|
||||
result = 1;
|
||||
if (free_out)
|
||||
tor_free(data);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Return the index within <b>buf</b> at which <b>ch</b> first appears,
|
||||
* or -1 if <b>ch</b> does not appear on buf. */
|
||||
static off_t
|
||||
@ -2311,93 +1975,14 @@ write_to_buf_zlib(buf_t *buf, tor_zlib_state_t *state,
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
int
|
||||
write_to_evbuffer_zlib(struct evbuffer *buf, tor_zlib_state_t *state,
|
||||
const char *data, size_t data_len,
|
||||
int done)
|
||||
{
|
||||
char *next;
|
||||
size_t old_avail, avail;
|
||||
int over = 0, n;
|
||||
struct evbuffer_iovec vec[1];
|
||||
do {
|
||||
{
|
||||
size_t cap = data_len / 4;
|
||||
if (cap < 128)
|
||||
cap = 128;
|
||||
/* XXXX NM this strategy is fragmentation-prone. We should really have
|
||||
* two iovecs, and write first into the one, and then into the
|
||||
* second if the first gets full. */
|
||||
n = evbuffer_reserve_space(buf, cap, vec, 1);
|
||||
tor_assert(n == 1);
|
||||
}
|
||||
|
||||
next = vec[0].iov_base;
|
||||
avail = old_avail = vec[0].iov_len;
|
||||
|
||||
switch (tor_zlib_process(state, &next, &avail, &data, &data_len, done)) {
|
||||
case TOR_ZLIB_DONE:
|
||||
over = 1;
|
||||
break;
|
||||
case TOR_ZLIB_ERR:
|
||||
return -1;
|
||||
case TOR_ZLIB_OK:
|
||||
if (data_len == 0)
|
||||
over = 1;
|
||||
break;
|
||||
case TOR_ZLIB_BUF_FULL:
|
||||
if (avail) {
|
||||
/* Zlib says we need more room (ZLIB_BUF_FULL). Start a new chunk
|
||||
* automatically, whether were going to or not. */
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
/* XXXX possible infinite loop on BUF_FULL. */
|
||||
vec[0].iov_len = old_avail - avail;
|
||||
evbuffer_commit_space(buf, vec, 1);
|
||||
|
||||
} while (!over);
|
||||
check();
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Set *<b>output</b> to contain a copy of the data in *<b>input</b> */
|
||||
int
|
||||
generic_buffer_set_to_copy(generic_buffer_t **output,
|
||||
const generic_buffer_t *input)
|
||||
buf_set_to_copy(buf_t **output,
|
||||
const buf_t *input)
|
||||
{
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
struct evbuffer_ptr ptr;
|
||||
size_t remaining = evbuffer_get_length(input);
|
||||
if (*output) {
|
||||
evbuffer_drain(*output, evbuffer_get_length(*output));
|
||||
} else {
|
||||
if (!(*output = evbuffer_new()))
|
||||
return -1;
|
||||
}
|
||||
evbuffer_ptr_set((struct evbuffer*)input, &ptr, 0, EVBUFFER_PTR_SET);
|
||||
while (remaining) {
|
||||
struct evbuffer_iovec v[4];
|
||||
int n_used, i;
|
||||
n_used = evbuffer_peek((struct evbuffer*)input, -1, &ptr, v, 4);
|
||||
if (n_used < 0)
|
||||
return -1;
|
||||
for (i=0;i<n_used;++i) {
|
||||
evbuffer_add(*output, v[i].iov_base, v[i].iov_len);
|
||||
tor_assert(v[i].iov_len <= remaining);
|
||||
remaining -= v[i].iov_len;
|
||||
evbuffer_ptr_set((struct evbuffer*)input,
|
||||
&ptr, v[i].iov_len, EVBUFFER_PTR_ADD);
|
||||
}
|
||||
}
|
||||
#else
|
||||
if (*output)
|
||||
buf_free(*output);
|
||||
*output = buf_copy(input);
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
@ -56,46 +56,8 @@ int peek_buf_has_control0_command(buf_t *buf);
|
||||
|
||||
int fetch_ext_or_command_from_buf(buf_t *buf, ext_or_cmd_t **out);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
int fetch_var_cell_from_evbuffer(struct evbuffer *buf, var_cell_t **out,
|
||||
int linkproto);
|
||||
int fetch_from_evbuffer_socks(struct evbuffer *buf, socks_request_t *req,
|
||||
int log_sockstype, int safe_socks);
|
||||
int fetch_from_evbuffer_socks_client(struct evbuffer *buf, int state,
|
||||
char **reason);
|
||||
int fetch_from_evbuffer_http(struct evbuffer *buf,
|
||||
char **headers_out, size_t max_headerlen,
|
||||
char **body_out, size_t *body_used, size_t max_bodylen,
|
||||
int force_complete);
|
||||
int peek_evbuffer_has_control0_command(struct evbuffer *buf);
|
||||
int write_to_evbuffer_zlib(struct evbuffer *buf, tor_zlib_state_t *state,
|
||||
const char *data, size_t data_len,
|
||||
int done);
|
||||
int fetch_ext_or_command_from_evbuffer(struct evbuffer *buf,
|
||||
ext_or_cmd_t **out);
|
||||
#endif
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#define generic_buffer_new() evbuffer_new()
|
||||
#define generic_buffer_len(b) evbuffer_get_length((b))
|
||||
#define generic_buffer_add(b,dat,len) evbuffer_add((b),(dat),(len))
|
||||
#define generic_buffer_get(b,buf,buflen) evbuffer_remove((b),(buf),(buflen))
|
||||
#define generic_buffer_clear(b) evbuffer_drain((b), evbuffer_get_length((b)))
|
||||
#define generic_buffer_free(b) evbuffer_free((b))
|
||||
#define generic_buffer_fetch_ext_or_cmd(b, out) \
|
||||
fetch_ext_or_command_from_evbuffer((b), (out))
|
||||
#else
|
||||
#define generic_buffer_new() buf_new()
|
||||
#define generic_buffer_len(b) buf_datalen((b))
|
||||
#define generic_buffer_add(b,dat,len) write_to_buf((dat),(len),(b))
|
||||
#define generic_buffer_get(b,buf,buflen) fetch_from_buf((buf),(buflen),(b))
|
||||
#define generic_buffer_clear(b) buf_clear((b))
|
||||
#define generic_buffer_free(b) buf_free((b))
|
||||
#define generic_buffer_fetch_ext_or_cmd(b, out) \
|
||||
fetch_ext_or_command_from_buf((b), (out))
|
||||
#endif
|
||||
int generic_buffer_set_to_copy(generic_buffer_t **output,
|
||||
const generic_buffer_t *input);
|
||||
int buf_set_to_copy(buf_t **output,
|
||||
const buf_t *input);
|
||||
|
||||
void assert_buf_ok(buf_t *buf);
|
||||
|
||||
|
@ -1192,6 +1192,8 @@ channel_tls_handle_var_cell(var_cell_t *var_cell, or_connection_t *conn)
|
||||
* notice "hey, data arrived!" before we notice "hey, the handshake
|
||||
* finished!" And we need to be accepting both at once to handle both
|
||||
* the v2 and v3 handshakes. */
|
||||
/* But that should be happening any longer've disabled bufferevents. */
|
||||
tor_assert_nonfatal_unreached_once();
|
||||
|
||||
/* fall through */
|
||||
case OR_CONN_STATE_TLS_SERVER_RENEGOTIATING:
|
||||
|
@ -113,7 +113,6 @@ static config_abbrev_t option_abbrevs_[] = {
|
||||
{ "BridgeAuthoritativeDirectory", "BridgeAuthoritativeDir", 0, 0},
|
||||
{ "HashedControlPassword", "__HashedControlSessionPassword", 1, 0},
|
||||
{ "VirtualAddrNetwork", "VirtualAddrNetworkIPv4", 0, 0},
|
||||
{ "_UseFilteringSSLBufferevents", "UseFilteringSSLBufferevents", 0, 1},
|
||||
{ NULL, NULL, 0, 0},
|
||||
};
|
||||
|
||||
@ -225,7 +224,7 @@ static config_var_t option_vars_[] = {
|
||||
V(DirAuthorityFallbackRate, DOUBLE, "1.0"),
|
||||
V(DisableAllSwap, BOOL, "0"),
|
||||
V(DisableDebuggerAttachment, BOOL, "1"),
|
||||
V(DisableIOCP, BOOL, "1"),
|
||||
OBSOLETE("DisableIOCP"),
|
||||
OBSOLETE("DisableV2DirectoryInfo_"),
|
||||
OBSOLETE("DynamicDHGroups"),
|
||||
VPORT(DNSPort, LINELIST, NULL),
|
||||
@ -440,7 +439,7 @@ static config_var_t option_vars_[] = {
|
||||
V(UseMicrodescriptors, AUTOBOOL, "auto"),
|
||||
V(UseNTorHandshake, AUTOBOOL, "1"),
|
||||
V(User, STRING, NULL),
|
||||
V(UserspaceIOCPBuffers, BOOL, "0"),
|
||||
OBSOLETE("UserspaceIOCPBuffers"),
|
||||
V(AuthDirSharedRandomness, BOOL, "1"),
|
||||
OBSOLETE("V1AuthoritativeDirectory"),
|
||||
OBSOLETE("V2AuthoritativeDirectory"),
|
||||
@ -461,7 +460,8 @@ static config_var_t option_vars_[] = {
|
||||
V(VirtualAddrNetworkIPv4, STRING, "127.192.0.0/10"),
|
||||
V(VirtualAddrNetworkIPv6, STRING, "[FE80::]/10"),
|
||||
V(WarnPlaintextPorts, CSV, "23,109,110,143"),
|
||||
V(UseFilteringSSLBufferevents, BOOL, "0"),
|
||||
OBSOLETE("UseFilteringSSLBufferevents"),
|
||||
OBSOLETE("__UseFilteringSSLBufferevents"),
|
||||
VAR("__ReloadTorrcOnSIGHUP", BOOL, ReloadTorrcOnSIGHUP, "1"),
|
||||
VAR("__AllDirActionsPrivate", BOOL, AllDirActionsPrivate, "0"),
|
||||
VAR("__DisablePredictedCircuits",BOOL,DisablePredictedCircuits, "0"),
|
||||
@ -1674,17 +1674,6 @@ options_act(const or_options_t *old_options)
|
||||
if (accounting_is_enabled(options))
|
||||
configure_accounting(time(NULL));
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/* If we're using the bufferevents implementation and our rate limits
|
||||
* changed, we need to tell the rate-limiting system about it. */
|
||||
if (!old_options ||
|
||||
old_options->BandwidthRate != options->BandwidthRate ||
|
||||
old_options->BandwidthBurst != options->BandwidthBurst ||
|
||||
old_options->RelayBandwidthRate != options->RelayBandwidthRate ||
|
||||
old_options->RelayBandwidthBurst != options->RelayBandwidthBurst)
|
||||
connection_bucket_init();
|
||||
#endif
|
||||
|
||||
old_ewma_enabled = cell_ewma_enabled();
|
||||
/* Change the cell EWMA settings */
|
||||
cell_ewma_set_scale_factor(options, networkstatus_get_latest_consensus());
|
||||
@ -4229,12 +4218,6 @@ options_transition_allowed(const or_options_t *old,
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (old->DisableIOCP != new_val->DisableIOCP) {
|
||||
*msg = tor_strdup("While Tor is running, changing DisableIOCP "
|
||||
"is not allowed.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (old->DisableDebuggerAttachment &&
|
||||
!new_val->DisableDebuggerAttachment) {
|
||||
*msg = tor_strdup("While Tor is running, disabling "
|
||||
@ -7202,7 +7185,6 @@ init_libevent(const or_options_t *options)
|
||||
suppress_libevent_log_msg("Function not implemented");
|
||||
|
||||
memset(&cfg, 0, sizeof(cfg));
|
||||
cfg.disable_iocp = options->DisableIOCP;
|
||||
cfg.num_cpus = get_num_cpus(options);
|
||||
cfg.msec_per_tick = options->TokenBucketRefillInterval;
|
||||
|
||||
|
@ -52,10 +52,6 @@
|
||||
#include "sandbox.h"
|
||||
#include "transports.h"
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/event.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_PWD_H
|
||||
#include <pwd.h>
|
||||
#endif
|
||||
@ -75,10 +71,8 @@ static void connection_init(time_t now, connection_t *conn, int type,
|
||||
static int connection_init_accepted_conn(connection_t *conn,
|
||||
const listener_connection_t *listener);
|
||||
static int connection_handle_listener_read(connection_t *conn, int new_type);
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
static int connection_bucket_should_increase(int bucket,
|
||||
or_connection_t *conn);
|
||||
#endif
|
||||
static int connection_finished_flushing(connection_t *conn);
|
||||
static int connection_flushed_some(connection_t *conn);
|
||||
static int connection_finished_connecting(connection_t *conn);
|
||||
@ -236,26 +230,6 @@ conn_state_to_string(int type, int state)
|
||||
return buf;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** Return true iff the connection's type is one that can use a
|
||||
bufferevent-based implementation. */
|
||||
int
|
||||
connection_type_uses_bufferevent(connection_t *conn)
|
||||
{
|
||||
switch (conn->type) {
|
||||
case CONN_TYPE_AP:
|
||||
case CONN_TYPE_EXIT:
|
||||
case CONN_TYPE_DIR:
|
||||
case CONN_TYPE_CONTROL:
|
||||
case CONN_TYPE_OR:
|
||||
case CONN_TYPE_EXT_OR:
|
||||
return 1;
|
||||
default:
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Allocate and return a new dir_connection_t, initialized as by
|
||||
* connection_init(). */
|
||||
dir_connection_t *
|
||||
@ -427,13 +401,11 @@ connection_init(time_t now, connection_t *conn, int type, int socket_family)
|
||||
|
||||
conn->type = type;
|
||||
conn->socket_family = socket_family;
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
if (!connection_is_listener(conn)) {
|
||||
/* listeners never use their buf */
|
||||
conn->inbuf = buf_new();
|
||||
conn->outbuf = buf_new();
|
||||
}
|
||||
#endif
|
||||
|
||||
conn->timestamp_created = now;
|
||||
conn->timestamp_lastread = now;
|
||||
@ -577,10 +549,10 @@ connection_free_(connection_t *conn)
|
||||
if (entry_conn->socks_request)
|
||||
socks_request_free(entry_conn->socks_request);
|
||||
if (entry_conn->pending_optimistic_data) {
|
||||
generic_buffer_free(entry_conn->pending_optimistic_data);
|
||||
buf_free(entry_conn->pending_optimistic_data);
|
||||
}
|
||||
if (entry_conn->sending_optimistic_data) {
|
||||
generic_buffer_free(entry_conn->sending_optimistic_data);
|
||||
buf_free(entry_conn->sending_optimistic_data);
|
||||
}
|
||||
}
|
||||
if (CONN_IS_EDGE(conn)) {
|
||||
@ -603,15 +575,6 @@ connection_free_(connection_t *conn)
|
||||
tor_event_free(conn->read_event);
|
||||
tor_event_free(conn->write_event);
|
||||
conn->read_event = conn->write_event = NULL;
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
/* This was a workaround to handle bugs in some old versions of libevent
|
||||
* where callbacks can occur after calling bufferevent_free(). Setting
|
||||
* the callbacks to NULL prevented this. It shouldn't be necessary any
|
||||
* more, but let's not tempt fate for now. */
|
||||
bufferevent_setcb(conn->bufev, NULL, NULL, NULL, NULL);
|
||||
bufferevent_free(conn->bufev);
|
||||
conn->bufev = NULL;
|
||||
});
|
||||
|
||||
if (conn->type == CONN_TYPE_DIR) {
|
||||
dir_connection_t *dir_conn = TO_DIR_CONN(conn);
|
||||
@ -645,13 +608,6 @@ connection_free_(connection_t *conn)
|
||||
tor_free(TO_OR_CONN(conn)->ext_or_transport);
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (conn->type == CONN_TYPE_OR && TO_OR_CONN(conn)->bucket_cfg) {
|
||||
ev_token_bucket_cfg_free(TO_OR_CONN(conn)->bucket_cfg);
|
||||
TO_OR_CONN(conn)->bucket_cfg = NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
memwipe(mem, 0xCC, memlen); /* poison memory */
|
||||
tor_free(mem);
|
||||
}
|
||||
@ -2249,18 +2205,13 @@ connection_send_socks5_connect(connection_t *conn)
|
||||
conn->proxy_state = PROXY_SOCKS5_WANT_CONNECT_OK;
|
||||
}
|
||||
|
||||
/** Wrapper around fetch_from_(buf/evbuffer)_socks_client: see those functions
|
||||
/** Wrapper around fetch_from_buf_socks_client: see that functions
|
||||
* for documentation of its behavior. */
|
||||
static int
|
||||
connection_fetch_from_buf_socks_client(connection_t *conn,
|
||||
int state, char **reason)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
return fetch_from_evbuffer_socks_client(input, state, reason);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_from_buf_socks_client(conn->inbuf, state, reason);
|
||||
}
|
||||
return fetch_from_buf_socks_client(conn->inbuf, state, reason);
|
||||
}
|
||||
|
||||
/** Call this from connection_*_process_inbuf() to advance the proxy
|
||||
@ -2694,21 +2645,15 @@ connection_is_rate_limited(connection_t *conn)
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
static struct bufferevent_rate_limit_group *global_rate_limit = NULL;
|
||||
#else
|
||||
|
||||
/** Did either global write bucket run dry last second? If so,
|
||||
* we are likely to run dry again this second, so be stingy with the
|
||||
* tokens we just put in. */
|
||||
static int write_buckets_empty_last_second = 0;
|
||||
#endif
|
||||
|
||||
/** How many seconds of no active local circuits will make the
|
||||
* connection revert to the "relayed" bandwidth class? */
|
||||
#define CLIENT_IDLE_TIME_FOR_PRIORITY 30
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
/** Return 1 if <b>conn</b> should use tokens from the "relayed"
|
||||
* bandwidth rates, else 0. Currently, only OR conns with bandwidth
|
||||
* class 1, and directory conns that are serving data out, count.
|
||||
@ -2820,20 +2765,6 @@ connection_bucket_write_limit(connection_t *conn, time_t now)
|
||||
return connection_bucket_round_robin(base, priority,
|
||||
global_bucket, conn_bucket);
|
||||
}
|
||||
#else
|
||||
static ssize_t
|
||||
connection_bucket_read_limit(connection_t *conn, time_t now)
|
||||
{
|
||||
(void) now;
|
||||
return bufferevent_get_max_to_read(conn->bufev);
|
||||
}
|
||||
ssize_t
|
||||
connection_bucket_write_limit(connection_t *conn, time_t now)
|
||||
{
|
||||
(void) now;
|
||||
return bufferevent_get_max_to_write(conn->bufev);
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Return 1 if the global write buckets are low enough that we
|
||||
* shouldn't send <b>attempt</b> bytes of low-priority directory stuff
|
||||
@ -2857,12 +2788,8 @@ connection_bucket_write_limit(connection_t *conn, time_t now)
|
||||
int
|
||||
global_write_bucket_low(connection_t *conn, size_t attempt, int priority)
|
||||
{
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
ssize_t smaller_bucket = bufferevent_get_max_to_write(conn->bufev);
|
||||
#else
|
||||
int smaller_bucket = global_write_bucket < global_relayed_write_bucket ?
|
||||
global_write_bucket : global_relayed_write_bucket;
|
||||
#endif
|
||||
if (authdir_mode(get_options()) && priority>1)
|
||||
return 0; /* there's always room to answer v2 if we're an auth dir */
|
||||
|
||||
@ -2872,10 +2799,8 @@ global_write_bucket_low(connection_t *conn, size_t attempt, int priority)
|
||||
if (smaller_bucket < (int)attempt)
|
||||
return 1; /* not enough space no matter the priority */
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
if (write_buckets_empty_last_second)
|
||||
return 1; /* we're already hitting our limits, no more please */
|
||||
#endif
|
||||
|
||||
if (priority == 1) { /* old-style v1 query */
|
||||
/* Could we handle *two* of these requests within the next two seconds? */
|
||||
@ -2923,29 +2848,6 @@ record_num_bytes_transferred_impl(connection_t *conn,
|
||||
rep_hist_note_exit_bytes(conn->port, num_written, num_read);
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/** Wrapper around fetch_from_(buf/evbuffer)_socks_client: see those functions
|
||||
* for documentation of its behavior. */
|
||||
static void
|
||||
record_num_bytes_transferred(connection_t *conn,
|
||||
time_t now, size_t num_read, size_t num_written)
|
||||
{
|
||||
/* XXXX check if this is necessary */
|
||||
if (num_written >= INT_MAX || num_read >= INT_MAX) {
|
||||
log_err(LD_BUG, "Value out of range. num_read=%lu, num_written=%lu, "
|
||||
"connection type=%s, state=%s",
|
||||
(unsigned long)num_read, (unsigned long)num_written,
|
||||
conn_type_to_string(conn->type),
|
||||
conn_state_to_string(conn->type, conn->state));
|
||||
if (num_written >= INT_MAX) num_written = 1;
|
||||
if (num_read >= INT_MAX) num_read = 1;
|
||||
tor_fragile_assert();
|
||||
}
|
||||
|
||||
record_num_bytes_transferred_impl(conn,now,num_read,num_written);
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Helper: convert given <b>tvnow</b> time value to milliseconds since
|
||||
* midnight. */
|
||||
static uint32_t
|
||||
@ -2990,7 +2892,6 @@ connection_buckets_note_empty_ts(uint32_t *timestamp_var,
|
||||
*timestamp_var = msec_since_midnight(tvnow);
|
||||
}
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
/** Last time at which the global or relay buckets were emptied in msec
|
||||
* since midnight. */
|
||||
static uint32_t global_relayed_read_emptied = 0,
|
||||
@ -3321,92 +3222,6 @@ connection_bucket_should_increase(int bucket, or_connection_t *conn)
|
||||
|
||||
return 1;
|
||||
}
|
||||
#else
|
||||
static void
|
||||
connection_buckets_decrement(connection_t *conn, time_t now,
|
||||
size_t num_read, size_t num_written)
|
||||
{
|
||||
(void) conn;
|
||||
(void) now;
|
||||
(void) num_read;
|
||||
(void) num_written;
|
||||
/* Libevent does this for us. */
|
||||
}
|
||||
|
||||
void
|
||||
connection_bucket_refill(int seconds_elapsed, time_t now)
|
||||
{
|
||||
(void) seconds_elapsed;
|
||||
(void) now;
|
||||
/* Libevent does this for us. */
|
||||
}
|
||||
void
|
||||
connection_bucket_init(void)
|
||||
{
|
||||
const or_options_t *options = get_options();
|
||||
const struct timeval *tick = tor_libevent_get_one_tick_timeout();
|
||||
struct ev_token_bucket_cfg *bucket_cfg;
|
||||
|
||||
uint64_t rate, burst;
|
||||
if (options->RelayBandwidthRate) {
|
||||
rate = options->RelayBandwidthRate;
|
||||
burst = options->RelayBandwidthBurst;
|
||||
} else {
|
||||
rate = options->BandwidthRate;
|
||||
burst = options->BandwidthBurst;
|
||||
}
|
||||
|
||||
/* This can't overflow, since TokenBucketRefillInterval <= 1000,
|
||||
* and rate started out less than INT32_MAX. */
|
||||
rate = (rate * options->TokenBucketRefillInterval) / 1000;
|
||||
|
||||
bucket_cfg = ev_token_bucket_cfg_new((uint32_t)rate, (uint32_t)burst,
|
||||
(uint32_t)rate, (uint32_t)burst,
|
||||
tick);
|
||||
|
||||
if (!global_rate_limit) {
|
||||
global_rate_limit =
|
||||
bufferevent_rate_limit_group_new(tor_libevent_get_base(), bucket_cfg);
|
||||
} else {
|
||||
bufferevent_rate_limit_group_set_cfg(global_rate_limit, bucket_cfg);
|
||||
}
|
||||
ev_token_bucket_cfg_free(bucket_cfg);
|
||||
}
|
||||
|
||||
void
|
||||
connection_get_rate_limit_totals(uint64_t *read_out, uint64_t *written_out)
|
||||
{
|
||||
if (global_rate_limit == NULL) {
|
||||
*read_out = *written_out = 0;
|
||||
} else {
|
||||
bufferevent_rate_limit_group_get_totals(
|
||||
global_rate_limit, read_out, written_out);
|
||||
}
|
||||
}
|
||||
|
||||
/** Perform whatever operations are needed on <b>conn</b> to enable
|
||||
* rate-limiting. */
|
||||
void
|
||||
connection_enable_rate_limiting(connection_t *conn)
|
||||
{
|
||||
if (conn->bufev) {
|
||||
if (!global_rate_limit)
|
||||
connection_bucket_init();
|
||||
tor_add_bufferevent_to_rate_limit_group(conn->bufev, global_rate_limit);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
connection_consider_empty_write_buckets(connection_t *conn)
|
||||
{
|
||||
(void) conn;
|
||||
}
|
||||
static void
|
||||
connection_consider_empty_read_buckets(connection_t *conn)
|
||||
{
|
||||
(void) conn;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Read bytes from conn-\>s and process them.
|
||||
*
|
||||
@ -3737,171 +3552,11 @@ connection_read_to_buf(connection_t *conn, ssize_t *max_to_read,
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/* XXXX These generic versions could be simplified by making them
|
||||
type-specific */
|
||||
|
||||
/** Callback: Invoked whenever bytes are added to or drained from an input
|
||||
* evbuffer. Used to track the number of bytes read. */
|
||||
static void
|
||||
evbuffer_inbuf_callback(struct evbuffer *buf,
|
||||
const struct evbuffer_cb_info *info, void *arg)
|
||||
{
|
||||
connection_t *conn = arg;
|
||||
(void) buf;
|
||||
/* XXXX These need to get real counts on the non-nested TLS case. - NM */
|
||||
if (info->n_added) {
|
||||
time_t now = approx_time();
|
||||
conn->timestamp_lastread = now;
|
||||
record_num_bytes_transferred(conn, now, info->n_added, 0);
|
||||
connection_consider_empty_read_buckets(conn);
|
||||
if (conn->type == CONN_TYPE_AP) {
|
||||
edge_connection_t *edge_conn = TO_EDGE_CONN(conn);
|
||||
/*XXXX++ check for overflow*/
|
||||
edge_conn->n_read += (int)info->n_added;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Callback: Invoked whenever bytes are added to or drained from an output
|
||||
* evbuffer. Used to track the number of bytes written. */
|
||||
static void
|
||||
evbuffer_outbuf_callback(struct evbuffer *buf,
|
||||
const struct evbuffer_cb_info *info, void *arg)
|
||||
{
|
||||
connection_t *conn = arg;
|
||||
(void)buf;
|
||||
if (info->n_deleted) {
|
||||
time_t now = approx_time();
|
||||
conn->timestamp_lastwritten = now;
|
||||
record_num_bytes_transferred(conn, now, 0, info->n_deleted);
|
||||
connection_consider_empty_write_buckets(conn);
|
||||
if (conn->type == CONN_TYPE_AP) {
|
||||
edge_connection_t *edge_conn = TO_EDGE_CONN(conn);
|
||||
/*XXXX++ check for overflow*/
|
||||
edge_conn->n_written += (int)info->n_deleted;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Callback: invoked whenever a bufferevent has read data. */
|
||||
void
|
||||
connection_handle_read_cb(struct bufferevent *bufev, void *arg)
|
||||
{
|
||||
connection_t *conn = arg;
|
||||
(void) bufev;
|
||||
if (!conn->marked_for_close) {
|
||||
if (connection_process_inbuf(conn, 1)<0) /* XXXX Always 1? */
|
||||
if (!conn->marked_for_close)
|
||||
connection_mark_for_close(conn);
|
||||
}
|
||||
}
|
||||
|
||||
/** Callback: invoked whenever a bufferevent has written data. */
|
||||
void
|
||||
connection_handle_write_cb(struct bufferevent *bufev, void *arg)
|
||||
{
|
||||
connection_t *conn = arg;
|
||||
struct evbuffer *output;
|
||||
if (connection_flushed_some(conn)<0) {
|
||||
if (!conn->marked_for_close)
|
||||
connection_mark_for_close(conn);
|
||||
return;
|
||||
}
|
||||
|
||||
output = bufferevent_get_output(bufev);
|
||||
if (!evbuffer_get_length(output)) {
|
||||
connection_finished_flushing(conn);
|
||||
if (conn->marked_for_close && conn->hold_open_until_flushed) {
|
||||
conn->hold_open_until_flushed = 0;
|
||||
if (conn->linked) {
|
||||
/* send eof */
|
||||
bufferevent_flush(conn->bufev, EV_WRITE, BEV_FINISHED);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Callback: invoked whenever a bufferevent has had an event (like a
|
||||
* connection, or an eof, or an error) occur. */
|
||||
void
|
||||
connection_handle_event_cb(struct bufferevent *bufev, short event, void *arg)
|
||||
{
|
||||
connection_t *conn = arg;
|
||||
(void) bufev;
|
||||
if (conn->marked_for_close)
|
||||
return;
|
||||
|
||||
if (event & BEV_EVENT_CONNECTED) {
|
||||
tor_assert(connection_state_is_connecting(conn));
|
||||
if (connection_finished_connecting(conn)<0)
|
||||
return;
|
||||
}
|
||||
if (event & BEV_EVENT_EOF) {
|
||||
if (!conn->marked_for_close) {
|
||||
conn->inbuf_reached_eof = 1;
|
||||
if (connection_reached_eof(conn)<0)
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (event & BEV_EVENT_ERROR) {
|
||||
int socket_error = evutil_socket_geterror(conn->s);
|
||||
if (conn->type == CONN_TYPE_OR &&
|
||||
conn->state == OR_CONN_STATE_CONNECTING) {
|
||||
connection_or_connect_failed(TO_OR_CONN(conn),
|
||||
errno_to_orconn_end_reason(socket_error),
|
||||
tor_socket_strerror(socket_error));
|
||||
} else if (CONN_IS_EDGE(conn)) {
|
||||
edge_connection_t *edge_conn = TO_EDGE_CONN(conn);
|
||||
if (!edge_conn->edge_has_sent_end)
|
||||
connection_edge_end_errno(edge_conn);
|
||||
if (conn->type == CONN_TYPE_AP && TO_ENTRY_CONN(conn)->socks_request) {
|
||||
/* broken, don't send a socks reply back */
|
||||
TO_ENTRY_CONN(conn)->socks_request->has_finished = 1;
|
||||
}
|
||||
}
|
||||
connection_close_immediate(conn); /* Connection is dead. */
|
||||
if (!conn->marked_for_close)
|
||||
connection_mark_for_close(conn);
|
||||
}
|
||||
}
|
||||
|
||||
/** Set up the generic callbacks for the bufferevent on <b>conn</b>. */
|
||||
void
|
||||
connection_configure_bufferevent_callbacks(connection_t *conn)
|
||||
{
|
||||
struct bufferevent *bufev;
|
||||
struct evbuffer *input, *output;
|
||||
tor_assert(conn->bufev);
|
||||
bufev = conn->bufev;
|
||||
bufferevent_setcb(bufev,
|
||||
connection_handle_read_cb,
|
||||
connection_handle_write_cb,
|
||||
connection_handle_event_cb,
|
||||
conn);
|
||||
/* Set a fairly high write low-watermark so that we get the write callback
|
||||
called whenever data is written to bring us under 128K. Leave the
|
||||
high-watermark at 0.
|
||||
*/
|
||||
bufferevent_setwatermark(bufev, EV_WRITE, 128*1024, 0);
|
||||
|
||||
input = bufferevent_get_input(bufev);
|
||||
output = bufferevent_get_output(bufev);
|
||||
evbuffer_add_cb(input, evbuffer_inbuf_callback, conn);
|
||||
evbuffer_add_cb(output, evbuffer_outbuf_callback, conn);
|
||||
}
|
||||
#endif
|
||||
|
||||
/** A pass-through to fetch_from_buf. */
|
||||
int
|
||||
connection_fetch_from_buf(char *string, size_t len, connection_t *conn)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
/* XXX overflow -seb */
|
||||
return (int)bufferevent_read(conn->bufev, string, len);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_from_buf(string, len, conn->inbuf);
|
||||
}
|
||||
return fetch_from_buf(string, len, conn->inbuf);
|
||||
}
|
||||
|
||||
/** As fetch_from_buf_line(), but read from a connection's input buffer. */
|
||||
@ -3909,43 +3564,19 @@ int
|
||||
connection_fetch_from_buf_line(connection_t *conn, char *data,
|
||||
size_t *data_len)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
int r;
|
||||
size_t eol_len=0;
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
struct evbuffer_ptr ptr =
|
||||
evbuffer_search_eol(input, NULL, &eol_len, EVBUFFER_EOL_LF);
|
||||
if (ptr.pos == -1)
|
||||
return 0; /* No EOL found. */
|
||||
if ((size_t)ptr.pos+eol_len >= *data_len) {
|
||||
return -1; /* Too long */
|
||||
}
|
||||
*data_len = ptr.pos+eol_len;
|
||||
r = evbuffer_remove(input, data, ptr.pos+eol_len);
|
||||
tor_assert(r >= 0);
|
||||
data[ptr.pos+eol_len] = '\0';
|
||||
return 1;
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_from_buf_line(conn->inbuf, data, data_len);
|
||||
}
|
||||
return fetch_from_buf_line(conn->inbuf, data, data_len);
|
||||
}
|
||||
|
||||
/** As fetch_from_buf_http, but fetches from a connection's input buffer_t or
|
||||
* its bufferevent as appropriate. */
|
||||
/** As fetch_from_buf_http, but fetches from a connection's input buffer_t as
|
||||
* appropriate. */
|
||||
int
|
||||
connection_fetch_from_buf_http(connection_t *conn,
|
||||
char **headers_out, size_t max_headerlen,
|
||||
char **body_out, size_t *body_used,
|
||||
size_t max_bodylen, int force_complete)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
return fetch_from_evbuffer_http(input, headers_out, max_headerlen,
|
||||
body_out, body_used, max_bodylen, force_complete);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_from_buf_http(conn->inbuf, headers_out, max_headerlen,
|
||||
body_out, body_used, max_bodylen, force_complete);
|
||||
}
|
||||
return fetch_from_buf_http(conn->inbuf, headers_out, max_headerlen,
|
||||
body_out, body_used, max_bodylen, force_complete);
|
||||
}
|
||||
|
||||
/** Return conn-\>outbuf_flushlen: how many bytes conn wants to flush
|
||||
@ -4249,7 +3880,7 @@ connection_handle_write(connection_t *conn, int force)
|
||||
* Try to flush data that's waiting for a write on <b>conn</b>. Return
|
||||
* -1 on failure, 0 on success.
|
||||
*
|
||||
* Don't use this function for regular writing; the buffers/bufferevents
|
||||
* Don't use this function for regular writing; the buffers
|
||||
* system should be good enough at scheduling writes there. Instead, this
|
||||
* function is for cases when we're about to exit or something and we want
|
||||
* to report it right away.
|
||||
@ -4257,10 +3888,6 @@ connection_handle_write(connection_t *conn, int force)
|
||||
int
|
||||
connection_flush(connection_t *conn)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
int r = bufferevent_flush(conn->bufev, EV_WRITE, BEV_FLUSH);
|
||||
return (r < 0) ? -1 : 0;
|
||||
});
|
||||
return connection_handle_write(conn, 1);
|
||||
}
|
||||
|
||||
@ -4289,22 +3916,6 @@ connection_write_to_buf_impl_,(const char *string, size_t len,
|
||||
if (conn->marked_for_close && !conn->hold_open_until_flushed)
|
||||
return;
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
if (zlib) {
|
||||
int done = zlib < 0;
|
||||
r = write_to_evbuffer_zlib(bufferevent_get_output(conn->bufev),
|
||||
TO_DIR_CONN(conn)->zlib_state,
|
||||
string, len, done);
|
||||
} else {
|
||||
r = bufferevent_write(conn->bufev, string, len);
|
||||
}
|
||||
if (r < 0) {
|
||||
/* XXXX mark for close? */
|
||||
log_warn(LD_NET, "bufferevent_write failed! That shouldn't happen.");
|
||||
}
|
||||
return;
|
||||
});
|
||||
|
||||
old_datalen = buf_datalen(conn->outbuf);
|
||||
if (zlib) {
|
||||
dir_connection_t *dir_conn = TO_DIR_CONN(conn);
|
||||
@ -4750,7 +4361,7 @@ connection_flushed_some(connection_t *conn)
|
||||
}
|
||||
|
||||
/** We just finished flushing bytes to the appropriately low network layer,
|
||||
* and there are no more bytes remaining in conn-\>outbuf, conn-\>bev, or
|
||||
* and there are no more bytes remaining in conn-\>outbuf or
|
||||
* conn-\>tls to be flushed.
|
||||
*
|
||||
* This function just passes conn to the connection-specific
|
||||
@ -4767,8 +4378,7 @@ connection_finished_flushing(connection_t *conn)
|
||||
|
||||
// log_fn(LOG_DEBUG,"entered. Socket %u.", conn->s);
|
||||
|
||||
IF_HAS_NO_BUFFEREVENT(conn)
|
||||
connection_stop_writing(conn);
|
||||
connection_stop_writing(conn);
|
||||
|
||||
switch (conn->type) {
|
||||
case CONN_TYPE_OR:
|
||||
@ -4902,15 +4512,6 @@ assert_connection_ok(connection_t *conn, time_t now)
|
||||
tor_assert(conn->type >= CONN_TYPE_MIN_);
|
||||
tor_assert(conn->type <= CONN_TYPE_MAX_);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (conn->bufev) {
|
||||
tor_assert(conn->read_event == NULL);
|
||||
tor_assert(conn->write_event == NULL);
|
||||
tor_assert(conn->inbuf == NULL);
|
||||
tor_assert(conn->outbuf == NULL);
|
||||
}
|
||||
#endif
|
||||
|
||||
switch (conn->type) {
|
||||
case CONN_TYPE_OR:
|
||||
case CONN_TYPE_EXT_OR:
|
||||
@ -5174,11 +4775,6 @@ connection_free_all(void)
|
||||
|
||||
tor_free(last_interface_ipv4);
|
||||
tor_free(last_interface_ipv6);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (global_rate_limit)
|
||||
bufferevent_rate_limit_group_free(global_rate_limit);
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Log a warning, and possibly emit a control event, that <b>received</b> came
|
||||
|
@ -57,8 +57,6 @@ void connection_mark_for_close_internal_(connection_t *conn,
|
||||
connection_t *tmp_conn__ = (c); \
|
||||
connection_mark_for_close_internal_(tmp_conn__, (line), (file)); \
|
||||
tmp_conn__->hold_open_until_flushed = 1; \
|
||||
IF_HAS_BUFFEREVENT(tmp_conn__, \
|
||||
connection_start_writing(tmp_conn__)); \
|
||||
} while (0)
|
||||
|
||||
#define connection_mark_and_flush_internal(c) \
|
||||
@ -166,21 +164,13 @@ static size_t connection_get_outbuf_len(connection_t *conn);
|
||||
static inline size_t
|
||||
connection_get_inbuf_len(connection_t *conn)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
return evbuffer_get_length(bufferevent_get_input(conn->bufev));
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return conn->inbuf ? buf_datalen(conn->inbuf) : 0;
|
||||
}
|
||||
return conn->inbuf ? buf_datalen(conn->inbuf) : 0;
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
connection_get_outbuf_len(connection_t *conn)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
return evbuffer_get_length(bufferevent_get_output(conn->bufev));
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return conn->outbuf ? buf_datalen(conn->outbuf) : 0;
|
||||
}
|
||||
}
|
||||
|
||||
connection_t *connection_get_by_global_id(uint64_t id);
|
||||
@ -257,20 +247,6 @@ void clock_skew_warning(const connection_t *conn, long apparent_skew,
|
||||
int trusted, log_domain_mask_t domain,
|
||||
const char *received, const char *source);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
int connection_type_uses_bufferevent(connection_t *conn);
|
||||
void connection_configure_bufferevent_callbacks(connection_t *conn);
|
||||
void connection_handle_read_cb(struct bufferevent *bufev, void *arg);
|
||||
void connection_handle_write_cb(struct bufferevent *bufev, void *arg);
|
||||
void connection_handle_event_cb(struct bufferevent *bufev, short event,
|
||||
void *arg);
|
||||
void connection_get_rate_limit_totals(uint64_t *read_out,
|
||||
uint64_t *written_out);
|
||||
void connection_enable_rate_limiting(connection_t *conn);
|
||||
#else
|
||||
#define connection_type_uses_bufferevent(c) (0)
|
||||
#endif
|
||||
|
||||
#ifdef CONNECTION_PRIVATE
|
||||
STATIC void connection_free_(connection_t *conn);
|
||||
|
||||
|
@ -478,8 +478,7 @@ connection_edge_finished_connecting(edge_connection_t *edge_conn)
|
||||
rep_hist_note_exit_stream_opened(conn->port);
|
||||
|
||||
conn->state = EXIT_CONN_STATE_OPEN;
|
||||
IF_HAS_NO_BUFFEREVENT(conn)
|
||||
connection_watch_events(conn, READ_EVENT); /* stop writing, keep reading */
|
||||
connection_watch_events(conn, READ_EVENT); /* stop writing, keep reading */
|
||||
if (connection_get_outbuf_len(conn)) /* in case there are any queued relay
|
||||
* cells */
|
||||
connection_start_writing(conn);
|
||||
@ -1026,8 +1025,8 @@ connection_ap_detach_retriable(entry_connection_t *conn,
|
||||
pathbias_mark_use_rollback(circ);
|
||||
|
||||
if (conn->pending_optimistic_data) {
|
||||
generic_buffer_set_to_copy(&conn->sending_optimistic_data,
|
||||
conn->pending_optimistic_data);
|
||||
buf_set_to_copy(&conn->sending_optimistic_data,
|
||||
conn->pending_optimistic_data);
|
||||
}
|
||||
|
||||
if (!get_options()->LeaveStreamsUnattached || conn->use_begindir) {
|
||||
@ -2008,14 +2007,8 @@ connection_ap_handshake_process_socks(entry_connection_t *conn)
|
||||
|
||||
log_debug(LD_APP,"entered.");
|
||||
|
||||
IF_HAS_BUFFEREVENT(base_conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(base_conn->bufev);
|
||||
sockshere = fetch_from_evbuffer_socks(input, socks,
|
||||
options->TestSocks, options->SafeSocks);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
sockshere = fetch_from_buf_socks(base_conn->inbuf, socks,
|
||||
options->TestSocks, options->SafeSocks);
|
||||
};
|
||||
sockshere = fetch_from_buf_socks(base_conn->inbuf, socks,
|
||||
options->TestSocks, options->SafeSocks);
|
||||
|
||||
if (socks->replylen) {
|
||||
had_reply = 1;
|
||||
@ -2347,7 +2340,7 @@ connection_ap_handshake_send_begin(entry_connection_t *ap_conn)
|
||||
log_info(LD_APP, "Sending up to %ld + %ld bytes of queued-up data",
|
||||
(long)connection_get_inbuf_len(base_conn),
|
||||
ap_conn->sending_optimistic_data ?
|
||||
(long)generic_buffer_len(ap_conn->sending_optimistic_data) : 0);
|
||||
(long)buf_datalen(ap_conn->sending_optimistic_data) : 0);
|
||||
if (connection_edge_package_raw_inbuf(edge_conn, 1, NULL) < 0) {
|
||||
connection_mark_for_close(base_conn);
|
||||
}
|
||||
@ -3225,11 +3218,9 @@ connection_exit_connect(edge_connection_t *edge_conn)
|
||||
conn->state = EXIT_CONN_STATE_OPEN;
|
||||
if (connection_get_outbuf_len(conn)) {
|
||||
/* in case there are any queued data cells, from e.g. optimistic data */
|
||||
IF_HAS_NO_BUFFEREVENT(conn)
|
||||
connection_watch_events(conn, READ_EVENT|WRITE_EVENT);
|
||||
connection_watch_events(conn, READ_EVENT|WRITE_EVENT);
|
||||
} else {
|
||||
IF_HAS_NO_BUFFEREVENT(conn)
|
||||
connection_watch_events(conn, READ_EVENT);
|
||||
connection_watch_events(conn, READ_EVENT);
|
||||
}
|
||||
|
||||
/* also, deliver a 'connected' cell back through the circuit. */
|
||||
|
@ -42,10 +42,6 @@
|
||||
#include "ext_orport.h"
|
||||
#include "scheduler.h"
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent_ssl.h>
|
||||
#endif
|
||||
|
||||
static int connection_tls_finish_handshake(or_connection_t *conn);
|
||||
static int connection_or_launch_v3_or_handshake(or_connection_t *conn);
|
||||
static int connection_or_process_cells_from_inbuf(or_connection_t *conn);
|
||||
@ -66,12 +62,6 @@ static void connection_or_mark_bad_for_new_circs(or_connection_t *or_conn);
|
||||
|
||||
static void connection_or_change_state(or_connection_t *conn, uint8_t state);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
static void connection_or_handle_event_cb(struct bufferevent *bufev,
|
||||
short event, void *arg);
|
||||
#include <event2/buffer.h>/*XXXX REMOVE */
|
||||
#endif
|
||||
|
||||
/**************************************************************/
|
||||
|
||||
/** Map from identity digest of connected OR or desired OR to a connection_t
|
||||
@ -565,13 +555,6 @@ connection_or_process_inbuf(or_connection_t *conn)
|
||||
|
||||
return ret;
|
||||
case OR_CONN_STATE_TLS_SERVER_RENEGOTIATING:
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (tor_tls_server_got_renegotiate(conn->tls))
|
||||
connection_or_tls_renegotiated_cb(conn->tls, conn);
|
||||
if (conn->base_.marked_for_close)
|
||||
return 0;
|
||||
/* fall through. */
|
||||
#endif
|
||||
case OR_CONN_STATE_OPEN:
|
||||
case OR_CONN_STATE_OR_HANDSHAKING_V2:
|
||||
case OR_CONN_STATE_OR_HANDSHAKING_V3:
|
||||
@ -807,27 +790,6 @@ connection_or_update_token_buckets_helper(or_connection_t *conn, int reset,
|
||||
|
||||
conn->bandwidthrate = rate;
|
||||
conn->bandwidthburst = burst;
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
{
|
||||
const struct timeval *tick = tor_libevent_get_one_tick_timeout();
|
||||
struct ev_token_bucket_cfg *cfg, *old_cfg;
|
||||
int64_t rate64 = (((int64_t)rate) * options->TokenBucketRefillInterval)
|
||||
/ 1000;
|
||||
/* This can't overflow, since TokenBucketRefillInterval <= 1000,
|
||||
* and rate started out less than INT_MAX. */
|
||||
int rate_per_tick = (int) rate64;
|
||||
|
||||
cfg = ev_token_bucket_cfg_new(rate_per_tick, burst, rate_per_tick,
|
||||
burst, tick);
|
||||
old_cfg = conn->bucket_cfg;
|
||||
if (conn->base_.bufev)
|
||||
tor_set_bufferevent_rate_limit(conn->base_.bufev, cfg);
|
||||
if (old_cfg)
|
||||
ev_token_bucket_cfg_free(old_cfg);
|
||||
conn->bucket_cfg = cfg;
|
||||
(void) reset; /* No way to do this with libevent yet. */
|
||||
}
|
||||
#else
|
||||
if (reset) { /* set up the token buckets to be full */
|
||||
conn->read_bucket = conn->write_bucket = burst;
|
||||
return;
|
||||
@ -838,7 +800,6 @@ connection_or_update_token_buckets_helper(or_connection_t *conn, int reset,
|
||||
conn->read_bucket = burst;
|
||||
if (conn->write_bucket > burst)
|
||||
conn->write_bucket = burst;
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Either our set of relays or our per-conn rate limits have changed.
|
||||
@ -1395,40 +1356,14 @@ connection_tls_start_handshake,(or_connection_t *conn, int receiving))
|
||||
tor_tls_set_logged_address(conn->tls, // XXX client and relay?
|
||||
escaped_safe_str(conn->base_.address));
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (connection_type_uses_bufferevent(TO_CONN(conn))) {
|
||||
const int filtering = get_options()->UseFilteringSSLBufferevents;
|
||||
struct bufferevent *b =
|
||||
tor_tls_init_bufferevent(conn->tls, conn->base_.bufev, conn->base_.s,
|
||||
receiving, filtering);
|
||||
if (!b) {
|
||||
log_warn(LD_BUG,"tor_tls_init_bufferevent failed. Closing.");
|
||||
return -1;
|
||||
}
|
||||
conn->base_.bufev = b;
|
||||
if (conn->bucket_cfg)
|
||||
tor_set_bufferevent_rate_limit(conn->base_.bufev, conn->bucket_cfg);
|
||||
connection_enable_rate_limiting(TO_CONN(conn));
|
||||
|
||||
connection_configure_bufferevent_callbacks(TO_CONN(conn));
|
||||
bufferevent_setcb(b,
|
||||
connection_handle_read_cb,
|
||||
connection_handle_write_cb,
|
||||
connection_or_handle_event_cb,/* overriding this one*/
|
||||
TO_CONN(conn));
|
||||
}
|
||||
#endif
|
||||
connection_start_reading(TO_CONN(conn));
|
||||
log_debug(LD_HANDSHAKE,"starting TLS handshake on fd "TOR_SOCKET_T_FORMAT,
|
||||
conn->base_.s);
|
||||
note_crypto_pk_op(receiving ? TLS_HANDSHAKE_S : TLS_HANDSHAKE_C);
|
||||
|
||||
IF_HAS_BUFFEREVENT(TO_CONN(conn), {
|
||||
/* ???? */;
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
if (connection_tls_continue_handshake(conn) < 0)
|
||||
return -1;
|
||||
}
|
||||
if (connection_tls_continue_handshake(conn) < 0)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1517,75 +1452,6 @@ connection_tls_continue_handshake(or_connection_t *conn)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
static void
|
||||
connection_or_handle_event_cb(struct bufferevent *bufev, short event,
|
||||
void *arg)
|
||||
{
|
||||
struct or_connection_t *conn = TO_OR_CONN(arg);
|
||||
|
||||
/* XXXX cut-and-paste code; should become a function. */
|
||||
if (event & BEV_EVENT_CONNECTED) {
|
||||
if (conn->base_.state == OR_CONN_STATE_TLS_HANDSHAKING) {
|
||||
if (tor_tls_finish_handshake(conn->tls) < 0) {
|
||||
log_warn(LD_OR, "Problem finishing handshake");
|
||||
connection_or_close_for_error(conn, 0);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (! tor_tls_used_v1_handshake(conn->tls)) {
|
||||
if (!tor_tls_is_server(conn->tls)) {
|
||||
if (conn->base_.state == OR_CONN_STATE_TLS_HANDSHAKING) {
|
||||
if (connection_or_launch_v3_or_handshake(conn) < 0)
|
||||
connection_or_close_for_error(conn, 0);
|
||||
}
|
||||
} else {
|
||||
const int handshakes = tor_tls_get_num_server_handshakes(conn->tls);
|
||||
|
||||
if (handshakes == 1) {
|
||||
/* v2 or v3 handshake, as a server. Only got one handshake, so
|
||||
* wait for the next one. */
|
||||
tor_tls_set_renegotiate_callback(conn->tls,
|
||||
connection_or_tls_renegotiated_cb,
|
||||
conn);
|
||||
connection_or_change_state(conn,
|
||||
OR_CONN_STATE_TLS_SERVER_RENEGOTIATING);
|
||||
} else if (handshakes == 2) {
|
||||
/* v2 handshake, as a server. Two handshakes happened already,
|
||||
* so we treat renegotiation as done.
|
||||
*/
|
||||
connection_or_tls_renegotiated_cb(conn->tls, conn);
|
||||
} else if (handshakes > 2) {
|
||||
log_warn(LD_OR, "More than two handshakes done on connection. "
|
||||
"Closing.");
|
||||
connection_or_close_for_error(conn, 0);
|
||||
} else {
|
||||
log_warn(LD_BUG, "We were unexpectedly told that a connection "
|
||||
"got %d handshakes. Closing.", handshakes);
|
||||
connection_or_close_for_error(conn, 0);
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
connection_watch_events(TO_CONN(conn), READ_EVENT|WRITE_EVENT);
|
||||
if (connection_tls_finish_handshake(conn) < 0)
|
||||
connection_or_close_for_error(conn, 0); /* ???? */
|
||||
return;
|
||||
}
|
||||
|
||||
if (event & BEV_EVENT_ERROR) {
|
||||
unsigned long err;
|
||||
while ((err = bufferevent_get_openssl_error(bufev))) {
|
||||
tor_tls_log_one_error(conn->tls, err, LOG_WARN, LD_OR,
|
||||
"handshaking (with bufferevent)");
|
||||
}
|
||||
}
|
||||
|
||||
connection_handle_event_cb(bufev, event, arg);
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Return 1 if we initiated this connection, or 0 if it started
|
||||
* out as an incoming connection.
|
||||
*/
|
||||
@ -2003,11 +1869,7 @@ connection_or_set_state_open(or_connection_t *conn)
|
||||
|
||||
or_handshake_state_free(conn->handshake_state);
|
||||
conn->handshake_state = NULL;
|
||||
IF_HAS_BUFFEREVENT(TO_CONN(conn), {
|
||||
connection_watch_events(TO_CONN(conn), READ_EVENT|WRITE_EVENT);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
connection_start_reading(TO_CONN(conn));
|
||||
}
|
||||
connection_start_reading(TO_CONN(conn));
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -2067,12 +1929,7 @@ static int
|
||||
connection_fetch_var_cell_from_buf(or_connection_t *or_conn, var_cell_t **out)
|
||||
{
|
||||
connection_t *conn = TO_CONN(or_conn);
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
return fetch_var_cell_from_evbuffer(input, out, or_conn->link_proto);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_var_cell_from_buf(conn->inbuf, out, or_conn->link_proto);
|
||||
}
|
||||
return fetch_var_cell_from_buf(conn->inbuf, out, or_conn->link_proto);
|
||||
}
|
||||
|
||||
/** Process cells from <b>conn</b>'s inbuf.
|
||||
|
@ -4794,19 +4794,14 @@ is_valid_initial_command(control_connection_t *conn, const char *cmd)
|
||||
* interfaces is broken. */
|
||||
#define MAX_COMMAND_LINE_LENGTH (1024*1024)
|
||||
|
||||
/** Wrapper around peek_(evbuffer|buf)_has_control0 command: presents the same
|
||||
* interface as those underlying functions, but takes a connection_t intead of
|
||||
* an evbuffer or a buf_t.
|
||||
/** Wrapper around peek_buf_has_control0 command: presents the same
|
||||
* interface as that underlying functions, but takes a connection_t intead of
|
||||
* a buf_t.
|
||||
*/
|
||||
static int
|
||||
peek_connection_has_control0_command(connection_t *conn)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
return peek_evbuffer_has_control0_command(input);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return peek_buf_has_control0_command(conn->inbuf);
|
||||
}
|
||||
return peek_buf_has_control0_command(conn->inbuf);
|
||||
}
|
||||
|
||||
/** Called when data has arrived on a v1 control connection: Try to fetch
|
||||
|
@ -1272,11 +1272,7 @@ directory_initiate_command_rend(const tor_addr_port_t *or_addr_port,
|
||||
if_modified_since);
|
||||
|
||||
connection_watch_events(TO_CONN(conn), READ_EVENT|WRITE_EVENT);
|
||||
IF_HAS_BUFFEREVENT(ENTRY_TO_CONN(linked_conn), {
|
||||
connection_watch_events(ENTRY_TO_CONN(linked_conn),
|
||||
READ_EVENT|WRITE_EVENT);
|
||||
}) ELSE_IF_NO_BUFFEREVENT
|
||||
connection_start_reading(ENTRY_TO_CONN(linked_conn));
|
||||
connection_start_reading(ENTRY_TO_CONN(linked_conn));
|
||||
}
|
||||
}
|
||||
|
||||
@ -3641,16 +3637,8 @@ connection_dir_finished_flushing(dir_connection_t *conn)
|
||||
return 0;
|
||||
case DIR_CONN_STATE_SERVER_WRITING:
|
||||
if (conn->dir_spool_src != DIR_SPOOL_NONE) {
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
/* This can happen with paired bufferevents, since a paired connection
|
||||
* can flush immediately when you write to it, making the subsequent
|
||||
* check in connection_handle_write_cb() decide that the connection
|
||||
* is flushed. */
|
||||
log_debug(LD_DIRSERV, "Emptied a dirserv buffer, but still spooling.");
|
||||
#else
|
||||
log_warn(LD_BUG, "Emptied a dirserv buffer, but it's still spooling!");
|
||||
connection_mark_for_close(TO_CONN(conn));
|
||||
#endif
|
||||
} else {
|
||||
log_debug(LD_DIRSERV, "Finished writing server response. Closing.");
|
||||
connection_mark_for_close(TO_CONN(conn));
|
||||
|
@ -41,12 +41,7 @@ ext_or_cmd_free(ext_or_cmd_t *cmd)
|
||||
static int
|
||||
connection_fetch_ext_or_cmd_from_buf(connection_t *conn, ext_or_cmd_t **out)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
struct evbuffer *input = bufferevent_get_input(conn->bufev);
|
||||
return fetch_ext_or_command_from_evbuffer(input, out);
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
return fetch_ext_or_command_from_buf(conn->inbuf, out);
|
||||
}
|
||||
return fetch_ext_or_command_from_buf(conn->inbuf, out);
|
||||
}
|
||||
|
||||
/** Write an Extended ORPort message to <b>conn</b>. Use
|
||||
|
198
src/or/main.c
198
src/or/main.c
@ -71,10 +71,6 @@
|
||||
|
||||
#include <event2/event.h>
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYSTEMD
|
||||
# if defined(__COVERITY__) && !defined(__INCLUDE_LEVEL__)
|
||||
/* Systemd's use of gcc's __INCLUDE_LEVEL__ extension macro appears to confuse
|
||||
@ -101,8 +97,6 @@ static int run_main_loop_until_done(void);
|
||||
static void process_signal(int sig);
|
||||
|
||||
/********* START VARIABLES **********/
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
int global_read_bucket; /**< Max number of bytes I can read this second. */
|
||||
int global_write_bucket; /**< Max number of bytes I can write this second. */
|
||||
|
||||
@ -116,7 +110,6 @@ static int stats_prev_global_read_bucket;
|
||||
/** What was the write bucket before the last second_elapsed_callback() call?
|
||||
* (used to determine how many bytes we've written). */
|
||||
static int stats_prev_global_write_bucket;
|
||||
#endif
|
||||
|
||||
/* DOCDOC stats_prev_n_read */
|
||||
static uint64_t stats_prev_n_read = 0;
|
||||
@ -185,28 +178,6 @@ int quiet_level = 0;
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(_WIN32) && defined(USE_BUFFEREVENTS)
|
||||
/** Remove the kernel-space send and receive buffers for <b>s</b>. For use
|
||||
* with IOCP only. */
|
||||
static int
|
||||
set_buffer_lengths_to_zero(tor_socket_t s)
|
||||
{
|
||||
int zero = 0;
|
||||
int r = 0;
|
||||
if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, (void*)&zero,
|
||||
(socklen_t)sizeof(zero))) {
|
||||
log_warn(LD_NET, "Unable to clear SO_SNDBUF");
|
||||
r = -1;
|
||||
}
|
||||
if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, (void*)&zero,
|
||||
(socklen_t)sizeof(zero))) {
|
||||
log_warn(LD_NET, "Unable to clear SO_RCVBUF");
|
||||
r = -1;
|
||||
}
|
||||
return r;
|
||||
}
|
||||
#endif
|
||||
|
||||
/** Return 1 if we have successfully built a circuit, and nothing has changed
|
||||
* to make us think that maybe we can't.
|
||||
*/
|
||||
@ -249,66 +220,9 @@ connection_add_impl(connection_t *conn, int is_connecting)
|
||||
conn->conn_array_index = smartlist_len(connection_array);
|
||||
smartlist_add(connection_array, conn);
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (connection_type_uses_bufferevent(conn)) {
|
||||
if (SOCKET_OK(conn->s) && !conn->linked) {
|
||||
|
||||
#ifdef _WIN32
|
||||
if (tor_libevent_using_iocp_bufferevents() &&
|
||||
get_options()->UserspaceIOCPBuffers) {
|
||||
set_buffer_lengths_to_zero(conn->s);
|
||||
}
|
||||
#endif
|
||||
|
||||
conn->bufev = bufferevent_socket_new(
|
||||
tor_libevent_get_base(),
|
||||
conn->s,
|
||||
BEV_OPT_DEFER_CALLBACKS);
|
||||
if (!conn->bufev) {
|
||||
log_warn(LD_BUG, "Unable to create socket bufferevent");
|
||||
smartlist_del(connection_array, conn->conn_array_index);
|
||||
conn->conn_array_index = -1;
|
||||
return -1;
|
||||
}
|
||||
if (is_connecting) {
|
||||
/* Put the bufferevent into a "connecting" state so that we'll get
|
||||
* a "connected" event callback on successful write. */
|
||||
bufferevent_socket_connect(conn->bufev, NULL, 0);
|
||||
}
|
||||
connection_configure_bufferevent_callbacks(conn);
|
||||
} else if (conn->linked && conn->linked_conn &&
|
||||
connection_type_uses_bufferevent(conn->linked_conn)) {
|
||||
tor_assert(!(SOCKET_OK(conn->s)));
|
||||
if (!conn->bufev) {
|
||||
struct bufferevent *pair[2] = { NULL, NULL };
|
||||
if (bufferevent_pair_new(tor_libevent_get_base(),
|
||||
BEV_OPT_DEFER_CALLBACKS,
|
||||
pair) < 0) {
|
||||
log_warn(LD_BUG, "Unable to create bufferevent pair");
|
||||
smartlist_del(connection_array, conn->conn_array_index);
|
||||
conn->conn_array_index = -1;
|
||||
return -1;
|
||||
}
|
||||
tor_assert(pair[0]);
|
||||
conn->bufev = pair[0];
|
||||
conn->linked_conn->bufev = pair[1];
|
||||
} /* else the other side already was added, and got a bufferevent_pair */
|
||||
connection_configure_bufferevent_callbacks(conn);
|
||||
} else {
|
||||
tor_assert(!conn->linked);
|
||||
}
|
||||
|
||||
if (conn->bufev)
|
||||
tor_assert(conn->inbuf == NULL);
|
||||
|
||||
if (conn->linked_conn && conn->linked_conn->bufev)
|
||||
tor_assert(conn->linked_conn->inbuf == NULL);
|
||||
}
|
||||
#else
|
||||
(void) is_connecting;
|
||||
#endif
|
||||
|
||||
if (!HAS_BUFFEREVENT(conn) && (SOCKET_OK(conn->s) || conn->linked)) {
|
||||
if (SOCKET_OK(conn->s) || conn->linked) {
|
||||
conn->read_event = tor_event_new(tor_libevent_get_base(),
|
||||
conn->s, EV_READ|EV_PERSIST, conn_read_callback, conn);
|
||||
conn->write_event = tor_event_new(tor_libevent_get_base(),
|
||||
@ -337,12 +251,6 @@ connection_unregister_events(connection_t *conn)
|
||||
log_warn(LD_BUG, "Error removing write event for %d", (int)conn->s);
|
||||
tor_free(conn->write_event);
|
||||
}
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (conn->bufev) {
|
||||
bufferevent_free(conn->bufev);
|
||||
conn->bufev = NULL;
|
||||
}
|
||||
#endif
|
||||
if (conn->type == CONN_TYPE_AP_DNS_LISTENER) {
|
||||
dnsserv_close_listener(conn);
|
||||
}
|
||||
@ -502,17 +410,6 @@ get_bytes_written,(void))
|
||||
void
|
||||
connection_watch_events(connection_t *conn, watchable_events_t events)
|
||||
{
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
short ev = ((short)events) & (EV_READ|EV_WRITE);
|
||||
short old_ev = bufferevent_get_enabled(conn->bufev);
|
||||
if ((ev & ~old_ev) != 0) {
|
||||
bufferevent_enable(conn->bufev, ev);
|
||||
}
|
||||
if ((old_ev & ~ev) != 0) {
|
||||
bufferevent_disable(conn->bufev, old_ev & ~ev);
|
||||
}
|
||||
return;
|
||||
});
|
||||
if (events & READ_EVENT)
|
||||
connection_start_reading(conn);
|
||||
else
|
||||
@ -530,9 +427,6 @@ connection_is_reading(connection_t *conn)
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn,
|
||||
return (bufferevent_get_enabled(conn->bufev) & EV_READ) != 0;
|
||||
);
|
||||
return conn->reading_from_linked_conn ||
|
||||
(conn->read_event && event_pending(conn->read_event, EV_READ, NULL));
|
||||
}
|
||||
@ -583,11 +477,6 @@ connection_stop_reading,(connection_t *conn))
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
bufferevent_disable(conn->bufev, EV_READ);
|
||||
return;
|
||||
});
|
||||
|
||||
if (connection_check_event(conn, conn->read_event) < 0) {
|
||||
return;
|
||||
}
|
||||
@ -610,11 +499,6 @@ connection_start_reading,(connection_t *conn))
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
bufferevent_enable(conn->bufev, EV_READ);
|
||||
return;
|
||||
});
|
||||
|
||||
if (connection_check_event(conn, conn->read_event) < 0) {
|
||||
return;
|
||||
}
|
||||
@ -638,10 +522,6 @@ connection_is_writing(connection_t *conn)
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn,
|
||||
return (bufferevent_get_enabled(conn->bufev) & EV_WRITE) != 0;
|
||||
);
|
||||
|
||||
return conn->writing_to_linked_conn ||
|
||||
(conn->write_event && event_pending(conn->write_event, EV_WRITE, NULL));
|
||||
}
|
||||
@ -652,11 +532,6 @@ connection_stop_writing,(connection_t *conn))
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
bufferevent_disable(conn->bufev, EV_WRITE);
|
||||
return;
|
||||
});
|
||||
|
||||
if (connection_check_event(conn, conn->write_event) < 0) {
|
||||
return;
|
||||
}
|
||||
@ -680,11 +555,6 @@ connection_start_writing,(connection_t *conn))
|
||||
{
|
||||
tor_assert(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
bufferevent_enable(conn->bufev, EV_WRITE);
|
||||
return;
|
||||
});
|
||||
|
||||
if (connection_check_event(conn, conn->write_event) < 0) {
|
||||
return;
|
||||
}
|
||||
@ -873,21 +743,6 @@ conn_close_if_marked(int i)
|
||||
assert_connection_ok(conn, now);
|
||||
/* assert_all_pending_dns_resolves_ok(); */
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
if (conn->bufev) {
|
||||
if (conn->hold_open_until_flushed &&
|
||||
evbuffer_get_length(bufferevent_get_output(conn->bufev))) {
|
||||
/* don't close yet. */
|
||||
return 0;
|
||||
}
|
||||
if (conn->linked_conn && ! conn->linked_conn->marked_for_close) {
|
||||
/* We need to do this explicitly so that the linked connection
|
||||
* notices that there was an EOF. */
|
||||
bufferevent_flush(conn->bufev, EV_WRITE, BEV_FINISHED);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
log_debug(LD_NET,"Cleaning up connection (fd "TOR_SOCKET_T_FORMAT").",
|
||||
conn->s);
|
||||
|
||||
@ -897,7 +752,6 @@ conn_close_if_marked(int i)
|
||||
if (conn->proxy_state == PROXY_INFANT)
|
||||
log_failed_proxy_connection(conn);
|
||||
|
||||
IF_HAS_BUFFEREVENT(conn, goto unlink);
|
||||
if ((SOCKET_OK(conn->s) || conn->linked_conn) &&
|
||||
connection_wants_to_flush(conn)) {
|
||||
/* s == -1 means it's an incomplete edge connection, or that the socket
|
||||
@ -982,9 +836,6 @@ conn_close_if_marked(int i)
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
unlink:
|
||||
#endif
|
||||
connection_unlink(conn); /* unlink, remove, free */
|
||||
return 1;
|
||||
}
|
||||
@ -1130,11 +981,7 @@ run_connection_housekeeping(int i, time_t now)
|
||||
the connection or send a keepalive, depending. */
|
||||
|
||||
or_conn = TO_OR_CONN(conn);
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
tor_assert(conn->bufev);
|
||||
#else
|
||||
tor_assert(conn->outbuf);
|
||||
#endif
|
||||
|
||||
chan = TLS_CHAN_TO_BASE(or_conn->chan);
|
||||
tor_assert(chan);
|
||||
@ -2037,25 +1884,10 @@ second_elapsed_callback(periodic_timer_t *timer, void *arg)
|
||||
|
||||
/* the second has rolled over. check more stuff. */
|
||||
seconds_elapsed = current_second ? (int)(now - current_second) : 0;
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
{
|
||||
uint64_t cur_read,cur_written;
|
||||
connection_get_rate_limit_totals(&cur_read, &cur_written);
|
||||
bytes_written = (size_t)(cur_written - stats_prev_n_written);
|
||||
bytes_read = (size_t)(cur_read - stats_prev_n_read);
|
||||
stats_n_bytes_read += bytes_read;
|
||||
stats_n_bytes_written += bytes_written;
|
||||
if (accounting_is_enabled(options) && seconds_elapsed >= 0)
|
||||
accounting_add_bytes(bytes_read, bytes_written, seconds_elapsed);
|
||||
stats_prev_n_written = cur_written;
|
||||
stats_prev_n_read = cur_read;
|
||||
}
|
||||
#else
|
||||
bytes_read = (size_t)(stats_n_bytes_read - stats_prev_n_read);
|
||||
bytes_written = (size_t)(stats_n_bytes_written - stats_prev_n_written);
|
||||
stats_prev_n_read = stats_n_bytes_read;
|
||||
stats_prev_n_written = stats_n_bytes_written;
|
||||
#endif
|
||||
|
||||
control_event_bandwidth_used((uint32_t)bytes_read,(uint32_t)bytes_written);
|
||||
control_event_stream_bandwidth_used();
|
||||
@ -2127,12 +1959,11 @@ systemd_watchdog_callback(periodic_timer_t *timer, void *arg)
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
/** Timer: used to invoke refill_callback(). */
|
||||
static periodic_timer_t *refill_timer = NULL;
|
||||
|
||||
/** Libevent callback: invoked periodically to refill token buckets
|
||||
* and count r/w bytes. It is only used when bufferevents are disabled. */
|
||||
* and count r/w bytes. */
|
||||
static void
|
||||
refill_callback(periodic_timer_t *timer, void *arg)
|
||||
{
|
||||
@ -2176,7 +2007,6 @@ refill_callback(periodic_timer_t *timer, void *arg)
|
||||
|
||||
current_millisecond = now; /* remember what time it is, for next time */
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef _WIN32
|
||||
/** Called when a possibly ignorable libevent error occurs; ensures that we
|
||||
@ -2352,13 +2182,6 @@ do_main_loop(void)
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
log_warn(LD_GENERAL, "Tor was compiled with the --enable-bufferevents "
|
||||
"option. This is still experimental, and might cause strange "
|
||||
"bugs. If you want a more stable Tor, be sure to build without "
|
||||
"--enable-bufferevents.");
|
||||
#endif
|
||||
|
||||
handle_signals(1);
|
||||
|
||||
/* load the private keys, if we're supposed to have them, and set up the
|
||||
@ -2372,10 +2195,8 @@ do_main_loop(void)
|
||||
|
||||
/* Set up our buckets */
|
||||
connection_bucket_init();
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
stats_prev_global_read_bucket = global_read_bucket;
|
||||
stats_prev_global_write_bucket = global_write_bucket;
|
||||
#endif
|
||||
|
||||
/* initialize the bootstrap status events to know we're starting up */
|
||||
control_event_bootstrap(BOOTSTRAP_STATUS_STARTING, 0);
|
||||
@ -2472,7 +2293,6 @@ do_main_loop(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
if (!refill_timer) {
|
||||
struct timeval refill_interval;
|
||||
int msecs = get_options()->TokenBucketRefillInterval;
|
||||
@ -2486,7 +2306,6 @@ do_main_loop(void)
|
||||
NULL);
|
||||
tor_assert(refill_timer);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYSTEMD
|
||||
{
|
||||
@ -2980,14 +2799,9 @@ tor_init(int argc, char *argv[])
|
||||
|
||||
{
|
||||
const char *version = get_version();
|
||||
const char *bev_str =
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
"(with bufferevents) ";
|
||||
#else
|
||||
"";
|
||||
#endif
|
||||
log_notice(LD_GENERAL, "Tor v%s %srunning on %s with Libevent %s, "
|
||||
"OpenSSL %s and Zlib %s.", version, bev_str,
|
||||
|
||||
log_notice(LD_GENERAL, "Tor v%s running on %s with Libevent %s, "
|
||||
"OpenSSL %s and Zlib %s.", version,
|
||||
get_uname(),
|
||||
tor_libevent_get_version_str(),
|
||||
crypto_openssl_get_version_str(),
|
||||
@ -3163,9 +2977,7 @@ tor_free_all(int postfork)
|
||||
smartlist_free(active_linked_connection_lst);
|
||||
periodic_timer_free(second_timer);
|
||||
teardown_periodic_events();
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
periodic_timer_free(refill_timer);
|
||||
#endif
|
||||
|
||||
if (!postfork) {
|
||||
release_lockfile();
|
||||
|
84
src/or/or.h
84
src/or/or.h
@ -66,12 +66,6 @@
|
||||
#include <windows.h>
|
||||
#endif
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent.h>
|
||||
#include <event2/buffer.h>
|
||||
#include <event2/util.h>
|
||||
#endif
|
||||
|
||||
#include "crypto.h"
|
||||
#include "crypto_format.h"
|
||||
#include "tortls.h"
|
||||
@ -1137,11 +1131,8 @@ typedef struct {
|
||||
|
||||
typedef struct buf_t buf_t;
|
||||
typedef struct socks_request_t socks_request_t;
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#define generic_buffer_t struct evbuffer
|
||||
#else
|
||||
#define generic_buffer_t buf_t
|
||||
#endif
|
||||
|
||||
#define buf_t buf_t
|
||||
|
||||
typedef struct entry_port_cfg_t {
|
||||
/* Client port types (socks, dns, trans, natd) only: */
|
||||
@ -1280,10 +1271,6 @@ typedef struct connection_t {
|
||||
time_t timestamp_lastwritten; /**< When was the last time libevent said we
|
||||
* could write? */
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
struct bufferevent *bufev; /**< A Libevent buffered IO structure. */
|
||||
#endif
|
||||
|
||||
time_t timestamp_created; /**< When was this connection_t created? */
|
||||
|
||||
int socket_family; /**< Address family of this connection's socket. Usually
|
||||
@ -1523,17 +1510,10 @@ typedef struct or_connection_t {
|
||||
/* bandwidth* and *_bucket only used by ORs in OPEN state: */
|
||||
int bandwidthrate; /**< Bytes/s added to the bucket. (OPEN ORs only.) */
|
||||
int bandwidthburst; /**< Max bucket size for this conn. (OPEN ORs only.) */
|
||||
#ifndef USE_BUFFEREVENTS
|
||||
int read_bucket; /**< When this hits 0, stop receiving. Every second we
|
||||
* add 'bandwidthrate' to this, capping it at
|
||||
* bandwidthburst. (OPEN ORs only) */
|
||||
int write_bucket; /**< When this hits 0, stop writing. Like read_bucket. */
|
||||
#else
|
||||
/** A rate-limiting configuration object to determine how this connection
|
||||
* set its read- and write- limits. */
|
||||
/* XXXX we could share this among all connections. */
|
||||
struct ev_token_bucket_cfg *bucket_cfg;
|
||||
#endif
|
||||
|
||||
struct or_connection_t *next_with_same_id; /**< Next connection with same
|
||||
* identity digest as this one. */
|
||||
@ -1639,11 +1619,11 @@ typedef struct entry_connection_t {
|
||||
/** For AP connections only: buffer for data that we have sent
|
||||
* optimistically, which we might need to re-send if we have to
|
||||
* retry this connection. */
|
||||
generic_buffer_t *pending_optimistic_data;
|
||||
buf_t *pending_optimistic_data;
|
||||
/* For AP connections only: buffer for data that we previously sent
|
||||
* optimistically which we are currently re-sending as we retry this
|
||||
* connection. */
|
||||
generic_buffer_t *sending_optimistic_data;
|
||||
buf_t *sending_optimistic_data;
|
||||
|
||||
/** If this is a DNSPort connection, this field holds the pending DNS
|
||||
* request that we're going to try to answer. */
|
||||
@ -1846,51 +1826,6 @@ static inline listener_connection_t *TO_LISTENER_CONN(connection_t *c)
|
||||
return DOWNCAST(listener_connection_t, c);
|
||||
}
|
||||
|
||||
/* Conditional macros to help write code that works whether bufferevents are
|
||||
disabled or not.
|
||||
|
||||
We can't just write:
|
||||
if (conn->bufev) {
|
||||
do bufferevent stuff;
|
||||
} else {
|
||||
do other stuff;
|
||||
}
|
||||
because the bufferevent stuff won't even compile unless we have a fairly
|
||||
new version of Libevent. Instead, we say:
|
||||
IF_HAS_BUFFEREVENT(conn, { do_bufferevent_stuff } );
|
||||
or:
|
||||
IF_HAS_BUFFEREVENT(conn, {
|
||||
do bufferevent stuff;
|
||||
}) ELSE_IF_NO_BUFFEREVENT {
|
||||
do non-bufferevent stuff;
|
||||
}
|
||||
If we're compiling with bufferevent support, then the macros expand more or
|
||||
less to:
|
||||
if (conn->bufev) {
|
||||
do_bufferevent_stuff;
|
||||
} else {
|
||||
do non-bufferevent stuff;
|
||||
}
|
||||
and if we aren't using bufferevents, they expand more or less to:
|
||||
{ do non-bufferevent stuff; }
|
||||
*/
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#define HAS_BUFFEREVENT(c) (((c)->bufev) != NULL)
|
||||
#define IF_HAS_BUFFEREVENT(c, stmt) \
|
||||
if ((c)->bufev) do { \
|
||||
stmt ; \
|
||||
} while (0)
|
||||
#define ELSE_IF_NO_BUFFEREVENT ; else
|
||||
#define IF_HAS_NO_BUFFEREVENT(c) \
|
||||
if (NULL == (c)->bufev)
|
||||
#else
|
||||
#define HAS_BUFFEREVENT(c) (0)
|
||||
#define IF_HAS_BUFFEREVENT(c, stmt) (void)0
|
||||
#define ELSE_IF_NO_BUFFEREVENT ;
|
||||
#define IF_HAS_NO_BUFFEREVENT(c) \
|
||||
if (1)
|
||||
#endif
|
||||
|
||||
/** What action type does an address policy indicate: accept or reject? */
|
||||
typedef enum {
|
||||
ADDR_POLICY_ACCEPT=1,
|
||||
@ -4357,12 +4292,6 @@ typedef struct {
|
||||
*/
|
||||
double CircuitPriorityHalflife;
|
||||
|
||||
/** If true, do not enable IOCP on windows with bufferevents, even if
|
||||
* we think we could. */
|
||||
int DisableIOCP;
|
||||
/** For testing only: will go away eventually. */
|
||||
int UseFilteringSSLBufferevents;
|
||||
|
||||
/** Set to true if the TestingTorNetwork configuration option is set.
|
||||
* This is used so that options_validate() has a chance to realize that
|
||||
* the defaults have changed. */
|
||||
@ -4386,11 +4315,6 @@ typedef struct {
|
||||
* never use it. If -1, we do what the consensus says. */
|
||||
int OptimisticData;
|
||||
|
||||
/** If 1, and we are using IOCP, we set the kernel socket SNDBUF and RCVBUF
|
||||
* to 0 to try to save kernel memory and avoid the dread "Out of buffers"
|
||||
* issue. */
|
||||
int UserspaceIOCPBuffers;
|
||||
|
||||
/** If 1, we accept and launch no external network connections, except on
|
||||
* control ports. */
|
||||
int DisableNetwork;
|
||||
|
@ -1374,7 +1374,7 @@ connection_edge_process_relay_cell_not_open(
|
||||
/* This is definitely a success, so forget about any pending data we
|
||||
* had sent. */
|
||||
if (entry_conn->pending_optimistic_data) {
|
||||
generic_buffer_free(entry_conn->pending_optimistic_data);
|
||||
buf_free(entry_conn->pending_optimistic_data);
|
||||
entry_conn->pending_optimistic_data = NULL;
|
||||
}
|
||||
|
||||
@ -1876,7 +1876,7 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial,
|
||||
entry_conn->sending_optimistic_data != NULL;
|
||||
|
||||
if (PREDICT_UNLIKELY(sending_from_optimistic)) {
|
||||
bytes_to_process = generic_buffer_len(entry_conn->sending_optimistic_data);
|
||||
bytes_to_process = buf_datalen(entry_conn->sending_optimistic_data);
|
||||
if (PREDICT_UNLIKELY(!bytes_to_process)) {
|
||||
log_warn(LD_BUG, "sending_optimistic_data was non-NULL but empty");
|
||||
bytes_to_process = connection_get_inbuf_len(TO_CONN(conn));
|
||||
@ -1904,9 +1904,9 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial,
|
||||
/* XXXX We could be more efficient here by sometimes packing
|
||||
* previously-sent optimistic data in the same cell with data
|
||||
* from the inbuf. */
|
||||
generic_buffer_get(entry_conn->sending_optimistic_data, payload, length);
|
||||
if (!generic_buffer_len(entry_conn->sending_optimistic_data)) {
|
||||
generic_buffer_free(entry_conn->sending_optimistic_data);
|
||||
fetch_from_buf(payload, length, entry_conn->sending_optimistic_data);
|
||||
if (!buf_datalen(entry_conn->sending_optimistic_data)) {
|
||||
buf_free(entry_conn->sending_optimistic_data);
|
||||
entry_conn->sending_optimistic_data = NULL;
|
||||
}
|
||||
} else {
|
||||
@ -1921,8 +1921,8 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial,
|
||||
/* This is new optimistic data; remember it in case we need to detach and
|
||||
retry */
|
||||
if (!entry_conn->pending_optimistic_data)
|
||||
entry_conn->pending_optimistic_data = generic_buffer_new();
|
||||
generic_buffer_add(entry_conn->pending_optimistic_data, payload, length);
|
||||
entry_conn->pending_optimistic_data = buf_new();
|
||||
write_to_buf(payload, length, entry_conn->pending_optimistic_data);
|
||||
}
|
||||
|
||||
if (connection_edge_send_command(conn, RELAY_COMMAND_DATA,
|
||||
@ -2523,7 +2523,7 @@ set_streams_blocked_on_circ(circuit_t *circ, channel_t *chan,
|
||||
edge->edge_blocked_on_circ = block;
|
||||
}
|
||||
|
||||
if (!conn->read_event && !HAS_BUFFEREVENT(conn)) {
|
||||
if (!conn->read_event) {
|
||||
/* This connection is a placeholder for something; probably a DNS
|
||||
* request. It can't actually stop or start reading.*/
|
||||
continue;
|
||||
|
@ -303,42 +303,42 @@ test_buffer_pullup(void *arg)
|
||||
static void
|
||||
test_buffer_copy(void *arg)
|
||||
{
|
||||
generic_buffer_t *buf=NULL, *buf2=NULL;
|
||||
buf_t *buf=NULL, *buf2=NULL;
|
||||
const char *s;
|
||||
size_t len;
|
||||
char b[256];
|
||||
int i;
|
||||
(void)arg;
|
||||
|
||||
buf = generic_buffer_new();
|
||||
buf = buf_new();
|
||||
tt_assert(buf);
|
||||
|
||||
/* Copy an empty buffer. */
|
||||
tt_int_op(0, OP_EQ, generic_buffer_set_to_copy(&buf2, buf));
|
||||
tt_int_op(0, OP_EQ, buf_set_to_copy(&buf2, buf));
|
||||
tt_assert(buf2);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_len(buf2));
|
||||
tt_int_op(0, OP_EQ, buf_datalen(buf2));
|
||||
|
||||
/* Now try with a short buffer. */
|
||||
s = "And now comes an act of enormous enormance!";
|
||||
len = strlen(s);
|
||||
generic_buffer_add(buf, s, len);
|
||||
tt_int_op(len, OP_EQ, generic_buffer_len(buf));
|
||||
write_to_buf(s, len, buf);
|
||||
tt_int_op(len, OP_EQ, buf_datalen(buf));
|
||||
/* Add junk to buf2 so we can test replacing.*/
|
||||
generic_buffer_add(buf2, "BLARG", 5);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_set_to_copy(&buf2, buf));
|
||||
tt_int_op(len, OP_EQ, generic_buffer_len(buf2));
|
||||
generic_buffer_get(buf2, b, len);
|
||||
write_to_buf("BLARG", 5, buf2);
|
||||
tt_int_op(0, OP_EQ, buf_set_to_copy(&buf2, buf));
|
||||
tt_int_op(len, OP_EQ, buf_datalen(buf2));
|
||||
fetch_from_buf(b, len, buf2);
|
||||
tt_mem_op(b, OP_EQ, s, len);
|
||||
/* Now free buf2 and retry so we can test allocating */
|
||||
generic_buffer_free(buf2);
|
||||
buf_free(buf2);
|
||||
buf2 = NULL;
|
||||
tt_int_op(0, OP_EQ, generic_buffer_set_to_copy(&buf2, buf));
|
||||
tt_int_op(len, OP_EQ, generic_buffer_len(buf2));
|
||||
generic_buffer_get(buf2, b, len);
|
||||
tt_int_op(0, OP_EQ, buf_set_to_copy(&buf2, buf));
|
||||
tt_int_op(len, OP_EQ, buf_datalen(buf2));
|
||||
fetch_from_buf(b, len, buf2);
|
||||
tt_mem_op(b, OP_EQ, s, len);
|
||||
/* Clear buf for next test */
|
||||
generic_buffer_get(buf, b, len);
|
||||
tt_int_op(generic_buffer_len(buf),OP_EQ,0);
|
||||
fetch_from_buf(b, len, buf);
|
||||
tt_int_op(buf_datalen(buf),OP_EQ,0);
|
||||
|
||||
/* Okay, now let's try a bigger buffer. */
|
||||
s = "Quis autem vel eum iure reprehenderit qui in ea voluptate velit "
|
||||
@ -347,95 +347,94 @@ test_buffer_copy(void *arg)
|
||||
len = strlen(s);
|
||||
for (i = 0; i < 256; ++i) {
|
||||
b[0]=i;
|
||||
generic_buffer_add(buf, b, 1);
|
||||
generic_buffer_add(buf, s, len);
|
||||
write_to_buf(b, 1, buf);
|
||||
write_to_buf(s, len, buf);
|
||||
}
|
||||
tt_int_op(0, OP_EQ, generic_buffer_set_to_copy(&buf2, buf));
|
||||
tt_int_op(generic_buffer_len(buf2), OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(0, OP_EQ, buf_set_to_copy(&buf2, buf));
|
||||
tt_int_op(buf_datalen(buf2), OP_EQ, buf_datalen(buf));
|
||||
for (i = 0; i < 256; ++i) {
|
||||
generic_buffer_get(buf2, b, len+1);
|
||||
fetch_from_buf(b, len+1, buf2);
|
||||
tt_int_op((unsigned char)b[0],OP_EQ,i);
|
||||
tt_mem_op(b+1, OP_EQ, s, len);
|
||||
}
|
||||
|
||||
done:
|
||||
if (buf)
|
||||
generic_buffer_free(buf);
|
||||
buf_free(buf);
|
||||
if (buf2)
|
||||
generic_buffer_free(buf2);
|
||||
buf_free(buf2);
|
||||
}
|
||||
|
||||
static void
|
||||
test_buffer_ext_or_cmd(void *arg)
|
||||
{
|
||||
ext_or_cmd_t *cmd = NULL;
|
||||
generic_buffer_t *buf = generic_buffer_new();
|
||||
buf_t *buf = buf_new();
|
||||
char *tmp = NULL;
|
||||
(void) arg;
|
||||
|
||||
/* Empty -- should give "not there. */
|
||||
tt_int_op(0, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
tt_int_op(0, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_EQ, cmd);
|
||||
|
||||
/* Three bytes: shouldn't work. */
|
||||
generic_buffer_add(buf, "\x00\x20\x00", 3);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf("\x00\x20\x00", 3, buf);
|
||||
tt_int_op(0, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_EQ, cmd);
|
||||
tt_int_op(3, OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(3, OP_EQ, buf_datalen(buf));
|
||||
|
||||
/* 0020 0000: That's a nil command. It should work. */
|
||||
generic_buffer_add(buf, "\x00", 1);
|
||||
tt_int_op(1, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf("\x00", 1, buf);
|
||||
tt_int_op(1, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_NE, cmd);
|
||||
tt_int_op(0x20, OP_EQ, cmd->cmd);
|
||||
tt_int_op(0, OP_EQ, cmd->len);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(0, OP_EQ, buf_datalen(buf));
|
||||
ext_or_cmd_free(cmd);
|
||||
cmd = NULL;
|
||||
|
||||
/* Now try a length-6 command with one byte missing. */
|
||||
generic_buffer_add(buf, "\x10\x21\x00\x06""abcde", 9);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf("\x10\x21\x00\x06""abcde", 9, buf);
|
||||
tt_int_op(0, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_EQ, cmd);
|
||||
generic_buffer_add(buf, "f", 1);
|
||||
tt_int_op(1, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf("f", 1, buf);
|
||||
tt_int_op(1, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_NE, cmd);
|
||||
tt_int_op(0x1021, OP_EQ, cmd->cmd);
|
||||
tt_int_op(6, OP_EQ, cmd->len);
|
||||
tt_mem_op("abcdef", OP_EQ, cmd->body, 6);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(0, OP_EQ, buf_datalen(buf));
|
||||
ext_or_cmd_free(cmd);
|
||||
cmd = NULL;
|
||||
|
||||
/* Now try a length-10 command with 4 extra bytes. */
|
||||
generic_buffer_add(buf, "\xff\xff\x00\x0a"
|
||||
"loremipsum\x10\x00\xff\xff", 18);
|
||||
tt_int_op(1, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf("\xff\xff\x00\x0aloremipsum\x10\x00\xff\xff", 18, buf);
|
||||
tt_int_op(1, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_NE, cmd);
|
||||
tt_int_op(0xffff, OP_EQ, cmd->cmd);
|
||||
tt_int_op(10, OP_EQ, cmd->len);
|
||||
tt_mem_op("loremipsum", OP_EQ, cmd->body, 10);
|
||||
tt_int_op(4, OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(4, OP_EQ, buf_datalen(buf));
|
||||
ext_or_cmd_free(cmd);
|
||||
cmd = NULL;
|
||||
|
||||
/* Finally, let's try a maximum-length command. We already have the header
|
||||
* waiting. */
|
||||
tt_int_op(0, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
tt_int_op(0, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tmp = tor_malloc_zero(65535);
|
||||
generic_buffer_add(buf, tmp, 65535);
|
||||
tt_int_op(1, OP_EQ, generic_buffer_fetch_ext_or_cmd(buf, &cmd));
|
||||
write_to_buf(tmp, 65535, buf);
|
||||
tt_int_op(1, OP_EQ, fetch_ext_or_command_from_buf(buf, &cmd));
|
||||
tt_ptr_op(NULL, OP_NE, cmd);
|
||||
tt_int_op(0x1000, OP_EQ, cmd->cmd);
|
||||
tt_int_op(0xffff, OP_EQ, cmd->len);
|
||||
tt_mem_op(tmp, OP_EQ, cmd->body, 65535);
|
||||
tt_int_op(0, OP_EQ, generic_buffer_len(buf));
|
||||
tt_int_op(0, OP_EQ, buf_datalen(buf));
|
||||
ext_or_cmd_free(cmd);
|
||||
cmd = NULL;
|
||||
|
||||
done:
|
||||
ext_or_cmd_free(cmd);
|
||||
generic_buffer_free(buf);
|
||||
buf_free(buf);
|
||||
tor_free(tmp);
|
||||
}
|
||||
|
||||
|
@ -124,8 +124,7 @@ test_channeltls_num_bytes_queued(void *arg)
|
||||
* Next, we have to test ch->num_bytes_queued, which is
|
||||
* channel_tls_num_bytes_queued_method. We can't mock
|
||||
* connection_get_outbuf_len() directly because it's static inline
|
||||
* in connection.h, but we can mock buf_datalen(). Note that
|
||||
* if bufferevents ever work, this will break with them enabled.
|
||||
* in connection.h, but we can mock buf_datalen().
|
||||
*/
|
||||
|
||||
tt_assert(ch->num_bytes_queued != NULL);
|
||||
|
@ -11,9 +11,6 @@
|
||||
|
||||
#include <event2/event.h>
|
||||
#include <event2/thread.h>
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
#include <event2/bufferevent.h>
|
||||
#endif
|
||||
|
||||
#include "log_test_helpers.h"
|
||||
|
||||
|
@ -77,14 +77,14 @@ dummy_origin_circuit_new(int n_cells)
|
||||
}
|
||||
|
||||
static void
|
||||
add_bytes_to_buf(generic_buffer_t *buf, size_t n_bytes)
|
||||
add_bytes_to_buf(buf_t *buf, size_t n_bytes)
|
||||
{
|
||||
char b[3000];
|
||||
|
||||
while (n_bytes) {
|
||||
size_t this_add = n_bytes > sizeof(b) ? sizeof(b) : n_bytes;
|
||||
crypto_rand(b, this_add);
|
||||
generic_buffer_add(buf, b, this_add);
|
||||
write_to_buf(b, this_add, buf);
|
||||
n_bytes -= this_add;
|
||||
}
|
||||
}
|
||||
@ -94,20 +94,15 @@ dummy_edge_conn_new(circuit_t *circ,
|
||||
int type, size_t in_bytes, size_t out_bytes)
|
||||
{
|
||||
edge_connection_t *conn;
|
||||
generic_buffer_t *inbuf, *outbuf;
|
||||
buf_t *inbuf, *outbuf;
|
||||
|
||||
if (type == CONN_TYPE_EXIT)
|
||||
conn = edge_connection_new(type, AF_INET);
|
||||
else
|
||||
conn = ENTRY_TO_EDGE_CONN(entry_connection_new(type, AF_INET));
|
||||
|
||||
#ifdef USE_BUFFEREVENTS
|
||||
inbuf = bufferevent_get_input(TO_CONN(conn)->bufev);
|
||||
outbuf = bufferevent_get_output(TO_CONN(conn)->bufev);
|
||||
#else
|
||||
inbuf = TO_CONN(conn)->inbuf;
|
||||
outbuf = TO_CONN(conn)->outbuf;
|
||||
#endif
|
||||
|
||||
/* We add these bytes directly to the buffers, to avoid all the
|
||||
* edge connection read/write machinery. */
|
||||
|
Loading…
Reference in New Issue
Block a user