diff options
| -rw-r--r-- | src/or/circuitbuild.c | 15 | ||||
| -rw-r--r-- | src/or/circuitbuild.h | 3 | ||||
| -rw-r--r-- | src/or/connection_or.c | 23 |
3 files changed, 39 insertions, 2 deletions
diff --git a/src/or/circuitbuild.c b/src/or/circuitbuild.c index 403f65f28..82ff32713 100644 --- a/src/or/circuitbuild.c +++ b/src/or/circuitbuild.c @@ -4972,6 +4972,21 @@ find_bridge_by_digest(const char *digest) return NULL; } +const char * +find_transport_name_by_bridge_addrport(const tor_addr_t *addr, uint16_t port) +{ + if (!bridge_list) + return NULL; + + SMARTLIST_FOREACH_BEGIN(bridge_list, const bridge_info_t *, bridge) { + if (tor_addr_eq(&bridge->addr, addr) && + (bridge->port == port)) + return bridge->transport_name; + } SMARTLIST_FOREACH_END(bridge); + + return NULL; +} + /** If <b>addr</b> and <b>port</b> match the address and port of a * bridge of ours that uses pluggable transports, place its transport * in <b>transport</b>. diff --git a/src/or/circuitbuild.h b/src/or/circuitbuild.h index a7fd20830..2ef5be8f2 100644 --- a/src/or/circuitbuild.h +++ b/src/or/circuitbuild.h @@ -157,6 +157,9 @@ void transport_free(transport_t *transport); transport_t *transport_new(const tor_addr_t *addr, uint16_t port, const char *name, int socks_ver); +const char *find_transport_name_by_bridge_addrport(const tor_addr_t *addr, + uint16_t port); + int find_transport_by_bridge_addrport(const tor_addr_t *addr, uint16_t port, const transport_t **transport); transport_t *transport_get_by_name(const char *name); diff --git a/src/or/connection_or.c b/src/or/connection_or.c index 0d3f9d87f..81df70eb3 100644 --- a/src/or/connection_or.c +++ b/src/or/connection_or.c @@ -1051,8 +1051,27 @@ connection_or_connect(const tor_addr_t *_addr, uint16_t port, conn->_base.proxy_state = PROXY_INFANT; } } else { - log_warn(LD_GENERAL, "Tried to connect through proxy, but proxy address " - "could not be found."); + /* get_proxy_addrport() might fail if we have a Bridge line that + references a transport, but no ClientTransportPlugin lines + defining its transport proxy. If this is the case, let's try to + output a useful log message to the user. */ + const char *transport_name = + find_transport_name_by_bridge_addrport(&TO_CONN(conn)->addr, + TO_CONN(conn)->port); + + if (transport_name) { + log_warn(LD_GENERAL, "We were supposed to connect to bridge '%s:%u' " + "using pluggable transport '%s', but it seems that we can't " + "find a pluggable transport proxy supporting '%s'. Please make " + "sure that your configuration file is valid.", + fmt_addr(&TO_CONN(conn)->addr), TO_CONN(conn)->port, + transport_name, transport_name); + } else { + log_warn(LD_GENERAL, "Tried to connect to '%s:%u' through a proxy, but " + "the proxy address could not be found.", + fmt_addr(&TO_CONN(conn)->addr), TO_CONN(conn)->port); + } + connection_free(TO_CONN(conn)); return NULL; } |