commit b3281fc6d634ac32c6ce591313600b0ed56a9347 Author: Yawning Angel yawning@schwanenlied.me Date: Thu Mar 12 15:37:48 2015 +0000

Initialize the extorport auth cookie before launching PTs.

PTs expect the auth cookie to be available immedieately after launch, leading to a race condition when PTs opt to cache the extorport cookie once immediately after startup.

Fixes #15240. --- changes/bug15240 | 6 ++++++ src/or/config.c | 13 +++++++------ 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/changes/bug15240 b/changes/bug15240 new file mode 100644 index 0000000..e11f804 --- /dev/null +++ b/changes/bug15240 @@ -0,0 +1,6 @@ + o Minor bugfixes (pluggable transports): + - Initialize the extended OR Port authentication cookie before launching + pluggable transports. This prevents a race condition that occured when + server-side pluggable transports would cache the authentication cookie + before it has been (re)generated. Fixes bug 15240; bugfix on + 0.2.5.1-alpha. diff --git a/src/or/config.c b/src/or/config.c index 5ba8c99..fca350c 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -1451,6 +1451,13 @@ options_act(const or_options_t *old_options) rep_hist_load_mtbf_data(time(NULL)); }

+ /* If we have an ExtORPort, initialize its auth cookie. */ + if (running_tor && + init_ext_or_cookie_authentication(!!options->ExtORPort_lines) < 0) { + log_warn(LD_CONFIG,"Error creating Extended ORPort cookie file."); + return -1; + } + mark_transport_list(); pt_prepare_proxy_list_for_config_read(); if (!options->DisableNetwork) { @@ -1555,12 +1562,6 @@ options_act(const or_options_t *old_options) return -1; }

- /* If we have an ExtORPort, initialize its auth cookie. */ - if (init_ext_or_cookie_authentication(!!options->ExtORPort_lines) < 0) { - log_warn(LD_CONFIG,"Error creating Extended ORPort cookie file."); - return -1; - } - monitor_owning_controller_process(options->OwningControllerProcess);

/* reload keys as needed for rendezvous services. */