diff options
| -rw-r--r-- | src/or/config.c | 20 | ||||
| -rw-r--r-- | src/or/config.h | 2 | ||||
| -rw-r--r-- | src/or/transports.c | 50 |
3 files changed, 71 insertions, 1 deletions
diff --git a/src/or/config.c b/src/or/config.c index 1f6d1db1c..4ddced8a6 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -4671,6 +4671,26 @@ get_transport_bindaddr_from_config(const char *transport) return NULL; } +/** Given the name of a pluggable transport in <b>transport</b>, check + * the configuration file to see if the user has asked us to pass any + * parameters to the pluggable transport. Return a smartlist + * containing the parameters, otherwise NULL. */ +smartlist_t * +get_options_for_server_transport(const char *transport) +{ + config_line_t *cl; + const or_options_t *options = get_options(); + + for (cl = options->ServerTransportOptions; cl; cl = cl->next) { + smartlist_t *options_sl = + get_options_from_transport_options_line(cl->value, transport); + if (options_sl) + return options_sl; + } + + return NULL; +} + /** Read the contents of a ServerTransportPlugin line from * <b>line</b>. Return 0 if the line is well-formed, and -1 if it * isn't. diff --git a/src/or/config.h b/src/or/config.h index 11e8109d9..9910f1873 100644 --- a/src/or/config.h +++ b/src/or/config.h @@ -114,7 +114,7 @@ void bridge_line_free(bridge_line_t *bridge_line); bridge_line_t *parse_bridge_line(const char *line); smartlist_t *get_options_from_transport_options_line(const char *line, const char *transport); - +smartlist_t *get_options_for_server_transport(const char *transport); #endif diff --git a/src/or/transports.c b/src/or/transports.c index 6b6882ae7..2b129cb0f 100644 --- a/src/or/transports.c +++ b/src/or/transports.c @@ -1100,6 +1100,48 @@ parse_cmethod_line(const char *line, managed_proxy_t *mp) return r; } +/** Return a newly allocated string that tor should place in + * TOR_PT_SERVER_TRANSPORT_OPTIONS while configuring the server + * manged proxy in <b>mp</b>. Return NULL if no such options are found. */ +static char * +get_transport_options_for_server_proxy(const managed_proxy_t *mp) +{ + char *options_string = NULL; + smartlist_t *string_sl = smartlist_new(); + + tor_assert(mp->is_server); + + /** Loop over the transports of the proxy. If we have options for + any of them, format them appropriately and place them in our + smartlist. Finally, join our smartlist to get the final + string. */ + SMARTLIST_FOREACH_BEGIN(mp->transports_to_launch, const char *, transport) { + smartlist_t *options_tmp_sl = NULL; + options_tmp_sl = get_options_for_server_transport(transport); + if (!options_tmp_sl) + continue; + + /** Loop over the options of this transport, escape them, and + place them in the smartlist. */ + SMARTLIST_FOREACH_BEGIN(options_tmp_sl, const char *, options) { + char *escaped_opts = tor_escape_str_for_pt_args(options, ":;\\"); + smartlist_add_asprintf(string_sl, "%s:%s", + transport, escaped_opts); + tor_free(escaped_opts); + } SMARTLIST_FOREACH_END(options); + + SMARTLIST_FOREACH(options_tmp_sl, char *, c, tor_free(c)); + smartlist_free(options_tmp_sl); + } SMARTLIST_FOREACH_END(transport); + + options_string = smartlist_join_strings(string_sl, ";", 0, NULL); + + SMARTLIST_FOREACH(string_sl, char *, t, tor_free(t)); + smartlist_free(string_sl); + + return options_string; +} + /** Return the string that tor should place in TOR_PT_SERVER_BINDADDR * while configuring the server managed proxy in <b>mp</b>. The * string is stored in the heap, and it's the the responsibility of @@ -1181,6 +1223,14 @@ create_managed_proxy_environment(const managed_proxy_t *mp) tor_free(bindaddr_tmp); } + { + char *server_transport_options = + get_transport_options_for_server_proxy(mp); + smartlist_add_asprintf(envs, "TOR_PT_SERVER_TRANSPORT_OPTIONS=%s", + server_transport_options); + tor_free(server_transport_options); + } + /* XXX024 Remove the '=' here once versions of obfsproxy which * assert that this env var exists are sufficiently dead. * |