commit 14c8ff18ccdaccdf8ddf8287dea48b9da03b72dd Author: Mike Perry mikeperry-git@torproject.org Date: Fri May 2 10:14:43 2014 -0700

Add a tor-master version of #8402 for nightly testing. --- gitian/descriptors/linux/gitian-tor.yml | 3 + gitian/descriptors/mac/gitian-tor.yml | 3 + gitian/descriptors/windows/gitian-tor.yml | 3 + gitian/patches/bug8402-master.patch | 767 +++++++++++++++++++++++++++++ 4 files changed, 776 insertions(+)

diff --git a/gitian/descriptors/linux/gitian-tor.yml b/gitian/descriptors/linux/gitian-tor.yml index 8b1644e..44c2b1f 100644 --- a/gitian/descriptors/linux/gitian-tor.yml +++ b/gitian/descriptors/linux/gitian-tor.yml @@ -30,6 +30,7 @@ files: - "bug11069.patch" - "bug9665.patch" - "bug8402.patch" +- "bug8402-master.patch" - "dzip.sh" - "openssl-linux32-utils.zip" - "openssl-linux64-utils.zip" @@ -81,6 +82,8 @@ script: | git am ~/build/bug9665.patch git am ~/build/bug11200.patch git am ~/build/bug8402.patch + else + git am ~/build/bug8402-master.patch fi fi mkdir -p $OUTDIR/src diff --git a/gitian/descriptors/mac/gitian-tor.yml b/gitian/descriptors/mac/gitian-tor.yml index ca938fc..68905e7 100644 --- a/gitian/descriptors/mac/gitian-tor.yml +++ b/gitian/descriptors/mac/gitian-tor.yml @@ -33,6 +33,7 @@ files: - "bug11069.patch" - "bug9665.patch" - "bug8402.patch" +- "bug8402-master.patch" - "apple-uni-sdk-10.6_20110407-0.flosoft1_i386.deb" - "multiarch-darwin11-cctools127.2-gcc42-5666.3-llvmgcc42-2336.1-Linux-120724.tar.xz" - "dzip.sh" @@ -112,6 +113,8 @@ script: | git am ~/build/bug9665.patch git am ~/build/bug11200.patch git am ~/build/bug8402.patch + else + git am ~/build/bug8402-master.patch fi fi mkdir -p $OUTDIR/src diff --git a/gitian/descriptors/windows/gitian-tor.yml b/gitian/descriptors/windows/gitian-tor.yml index 61fc9b5..bb6998b 100644 --- a/gitian/descriptors/windows/gitian-tor.yml +++ b/gitian/descriptors/windows/gitian-tor.yml @@ -32,6 +32,7 @@ files: - "bug11069.patch" - "bug9665.patch" - "bug8402.patch" +- "bug8402-master.patch" - "binutils.tar.bz2" - "dzip.sh" - "openssl.tar.gz" @@ -108,6 +109,8 @@ script: | git am ~/build/bug9665.patch git am ~/build/bug11200.patch git am ~/build/bug8402.patch + else + git am ~/build/bug8402-master.patch fi fi mkdir -p $OUTDIR/src diff --git a/gitian/patches/bug8402-master.patch b/gitian/patches/bug8402-master.patch new file mode 100644 index 0000000..33d6e20 --- /dev/null +++ b/gitian/patches/bug8402-master.patch @@ -0,0 +1,767 @@ +From 7476a5c00aabdb2b2b4cd29f3029a7fa3afc657d Mon Sep 17 00:00:00 2001 +From: Yawning Angel yawning@schwanenlied.me +Date: Tue, 25 Mar 2014 07:21:22 +0000 +Subject: [PATCH 1/5] Allow ClientTransportPlugins to use proxies + +This change allows using Socks4Proxy, Socks5Proxy and HTTPSProxy with +ClientTransportPlugins via the TOR_PT_PROXY extension to the +pluggable transport specification. + +This fixes bug #8402. +--- + src/or/config.c | 24 +++++++---- + src/or/connection.c | 62 +++++++++++++++++++++-------- + src/or/transports.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++-- + src/or/transports.h | 6 +++ + src/test/test_pt.c | 81 +++++++++++++++++++++++++++++++++++++ + 5 files changed, 258 insertions(+), 27 deletions(-) + +diff --git a/src/or/config.c b/src/or/config.c +index da6aec0..91e8410 100644 +--- a/src/or/config.c ++++ b/src/or/config.c +@@ -535,7 +535,9 @@ static int options_transition_affects_descriptor( + const or_options_t *old_options, const or_options_t *new_options); + static int check_nickname_list(char **lst, const char *name, char **msg); + +-static int parse_client_transport_line(const char *line, int validate_only); ++static int parse_client_transport_line(const or_options_t *options, ++ const char *line, ++ int validate_only); + + static int parse_server_transport_line(const char *line, int validate_only); + static char *get_bindaddr_from_transport_listen_line(const char *line, +@@ -1399,7 +1401,7 @@ options_act(const or_options_t *old_options) + pt_prepare_proxy_list_for_config_read(); + if (options->ClientTransportPlugin) { + for (cl = options->ClientTransportPlugin; cl; cl = cl->next) { +- if (parse_client_transport_line(cl->value, 0)<0) { ++ if (parse_client_transport_line(options, cl->value, 0)<0) { + log_warn(LD_BUG, + "Previously validated ClientTransportPlugin line " + "could not be added!"); +@@ -3120,11 +3122,11 @@ options_validate(or_options_t *old_options, or_options_t *options, + } + } + +- /* Check if more than one proxy type has been enabled. */ ++ /* Check if more than one exclusive proxy type has been enabled. */ + if (!!options->Socks4Proxy + !!options->Socks5Proxy + +- !!options->HTTPSProxy + !!options->ClientTransportPlugin > 1) ++ !!options->HTTPSProxy > 1) + REJECT("You have configured more than one proxy type. " +- "(Socks4Proxy|Socks5Proxy|HTTPSProxy|ClientTransportPlugin)"); ++ "(Socks4Proxy|Socks5Proxy|HTTPSProxy)"); + + /* Check if the proxies will give surprising behavior. */ + if (options->HTTPProxy && !(options->Socks4Proxy || +@@ -3237,7 +3239,7 @@ options_validate(or_options_t *old_options, or_options_t *options, + } + + for (cl = options->ClientTransportPlugin; cl; cl = cl->next) { +- if (parse_client_transport_line(cl->value, 1)<0) ++ if (parse_client_transport_line(options, cl->value, 1)<0) + REJECT("Transport line did not parse. See logs for details."); + } + +@@ -4609,7 +4611,8 @@ parse_bridge_line(const char *line) + * our internal transport list. + * - If it's a managed proxy line, launch the managed proxy. */ + static int +-parse_client_transport_line(const char *line, int validate_only) ++parse_client_transport_line(const or_options_t *options, const char *line, ++ int validate_only) + { + smartlist_t *items = NULL; + int r; +@@ -4700,6 +4703,13 @@ parse_client_transport_line(const char *line, int validate_only) + pt_kickstart_client_proxy(transport_list, proxy_argv); + } + } else { /* external */ ++ /* ClientTransportPlugins connecting through a proxy is managed only. */ ++ if (options->Socks4Proxy || options->Socks5Proxy || options->HTTPSProxy) { ++ log_warn(LD_CONFIG, "You have configured an external proxy with another " ++ "proxy type. (Socks4Proxy|Socks5Proxy|HTTPSProxy)"); ++ goto err; ++ } ++ + if (smartlist_len(transport_list) != 1) { + log_warn(LD_CONFIG, "You can't have an external proxy with " + "more than one transports."); +diff --git a/src/or/connection.c b/src/or/connection.c +index 8c697d6..93d164c 100644 +--- a/src/or/connection.c ++++ b/src/or/connection.c +@@ -86,6 +86,8 @@ static int connection_read_https_proxy_response(connection_t *conn); + static void connection_send_socks5_connect(connection_t *conn); + static const char *proxy_type_to_string(int proxy_type); + static int get_proxy_type(void); ++static int get_bridge_pt_addrport(tor_addr_t *addr, uint16_t *port, ++ int *proxy_type, const connection_t *conn); + + /** The last addresses that our network interface seemed to have been + * binding to. We use this as one way to detect when our IP changes. +@@ -1671,14 +1673,14 @@ get_proxy_type(void) + { + const or_options_t *options = get_options(); + +- if (options->HTTPSProxy) ++ if (options->ClientTransportPlugin) ++ return PROXY_PLUGGABLE; ++ else if (options->HTTPSProxy) + return PROXY_CONNECT; + else if (options->Socks4Proxy) + return PROXY_SOCKS4; + else if (options->Socks5Proxy) + return PROXY_SOCKS5; +- else if (options->ClientTransportPlugin) +- return PROXY_PLUGGABLE; + else + return PROXY_NONE; + } +@@ -4733,6 +4735,35 @@ assert_connection_ok(connection_t *conn, time_t now) + } + + /** Fills <b>addr</b> and <b>port</b> with the details of the global ++ * pluggable transport or bridge we are using. ++ * <b>conn</b> contains the connection we are using the PT/bridge for. ++ * ++ * Return 0 on success, -1 on failure. ++ */ ++static int ++get_bridge_pt_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, ++ const connection_t *conn) ++{ ++ const or_options_t *options = get_options(); ++ ++ if (options->ClientTransportPlugin || options->Bridges) { ++ const transport_t *transport = NULL; ++ int r; ++ r = get_transport_by_bridge_addrport(&conn->addr, conn->port, &transport); ++ if (r<0) ++ return -1; ++ if (transport) { /* transport found */ ++ tor_addr_copy(addr, &transport->addr); ++ *port = transport->port; ++ *proxy_type = transport->socks_version; ++ return 0; ++ } ++ } ++ ++ return -1; ++} ++ ++/** Fills <b>addr</b> and <b>port</b> with the details of the global + * proxy server we are using. + * <b>conn</b> contains the connection we are using the proxy for. + * +@@ -4744,6 +4775,16 @@ get_proxy_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, + { + const or_options_t *options = get_options(); + ++ /* Client Transport Plugins can use another proxy, but that should be hidden ++ * from the rest of tor (as the plugin is responsible for dealing with the ++ * proxy), check it first, then check the rest of the proxy types to allow ++ * the config to have unused ClientTransportPlugin entries. ++ */ ++ if (options->ClientTransportPlugin) { ++ if (get_bridge_pt_addrport(addr, port, proxy_type, conn) == 0) ++ return 0; ++ } ++ + if (options->HTTPSProxy) { + tor_addr_copy(addr, &options->HTTPSProxyAddr); + *port = options->HTTPSProxyPort; +@@ -4759,19 +4800,8 @@ get_proxy_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, + *port = options->Socks5ProxyPort; + *proxy_type = PROXY_SOCKS5; + return 0; +- } else if (options->ClientTransportPlugin || +- options->Bridges) { +- const transport_t *transport = NULL; +- int r; +- r = get_transport_by_bridge_addrport(&conn->addr, conn->port, &transport); +- if (r<0) +- return -1; +- if (transport) { /* transport found */ +- tor_addr_copy(addr, &transport->addr); +- *port = transport->port; +- *proxy_type = transport->socks_version; +- return 0; +- } ++ } else if (options->Bridges) { ++ return get_bridge_pt_addrport(addr, port, proxy_type, conn); + } + + *proxy_type = PROXY_NONE; +diff --git a/src/or/transports.c b/src/or/transports.c +index 8b4a118..8e82a41 100644 +--- a/src/or/transports.c ++++ b/src/or/transports.c +@@ -122,6 +122,8 @@ static INLINE void free_execve_args(char **arg); + #define PROTO_SMETHOD_ERROR "SMETHOD-ERROR" + #define PROTO_CMETHODS_DONE "CMETHODS DONE" + #define PROTO_SMETHODS_DONE "SMETHODS DONE" ++#define PROTO_PROXY_DONE "PROXY DONE" ++#define PROTO_PROXY_ERROR "PROXY-ERROR" + + /** The first and only supported - at the moment - configuration + protocol version. */ +@@ -437,6 +439,17 @@ add_transport_to_proxy(const char *transport, managed_proxy_t *mp) + static int + proxy_needs_restart(const managed_proxy_t *mp) + { ++ int ret = 1; ++ char* proxy_uri; ++ ++ /* If the PT proxy config has changed, then all existing pluggable transports ++ * should be restarted. ++ */ ++ ++ proxy_uri = get_pt_proxy_uri(); ++ if (strcmp_opt(proxy_uri, mp->proxy_uri) != 0) ++ goto needs_restart; ++ + /* mp->transport_to_launch is populated with the names of the + transports that must be launched *after* the SIGHUP. + mp->transports is populated with the transports that were +@@ -457,10 +470,10 @@ proxy_needs_restart(const managed_proxy_t *mp) + + } SMARTLIST_FOREACH_END(t); + +- return 0; +- +- needs_restart: +- return 1; ++ ret = 0; ++needs_restart: ++ tor_free(proxy_uri); ++ return ret; + } + + /** Managed proxy <b>mp</b> must be restarted. Do all the necessary +@@ -491,6 +504,11 @@ proxy_prepare_for_restart(managed_proxy_t *mp) + SMARTLIST_FOREACH(mp->transports, transport_t *, t, transport_free(t)); + smartlist_clear(mp->transports); + ++ /* Reset the proxy's HTTPS/SOCKS proxy */ ++ tor_free(mp->proxy_uri); ++ mp->proxy_uri = get_pt_proxy_uri(); ++ mp->proxy_supported = 0; ++ + /* flag it as an infant proxy so that it gets launched on next tick */ + mp->conf_state = PT_PROTO_INFANT; + unconfigured_proxies_n++; +@@ -725,12 +743,52 @@ managed_proxy_destroy(managed_proxy_t *mp, + /* free the argv */ + free_execve_args(mp->argv); + ++ /* free the outgoing proxy URI */ ++ tor_free(mp->proxy_uri); ++ + tor_process_handle_destroy(mp->process_handle, also_terminate_process); + mp->process_handle = NULL; + + tor_free(mp); + } + ++/** Convert the tor proxy options to a URI suitable for TOR_PT_PROXY. */ ++STATIC char * ++get_pt_proxy_uri(void) ++{ ++ const or_options_t *options = get_options(); ++ char *uri = NULL; ++ ++ if (options->Socks4Proxy || options->Socks5Proxy || options->HTTPSProxy) { ++ char addr[TOR_ADDR_BUF_LEN+1]; ++ ++ if (options->Socks4Proxy) { ++ tor_addr_to_str(addr, &options->Socks4ProxyAddr, sizeof(addr), 1); ++ tor_asprintf(&uri, "socks4a://%s:%d", addr, options->Socks4ProxyPort); ++ } else if (options->Socks5Proxy) { ++ tor_addr_to_str(addr, &options->Socks5ProxyAddr, sizeof(addr), 1); ++ if (!options->Socks5ProxyUsername && !options->Socks5ProxyPassword) { ++ tor_asprintf(&uri, "socks5://%s:%d", addr, options->Socks5ProxyPort); ++ } else { ++ tor_asprintf(&uri, "socks5://%s:%s@%s:%d", ++ options->Socks5ProxyUsername, ++ options->Socks5ProxyPassword, ++ addr, options->Socks5ProxyPort); ++ } ++ } else if (options->HTTPSProxy) { ++ tor_addr_to_str(addr, &options->HTTPSProxyAddr, sizeof(addr), 1); ++ if (!options->HTTPSProxyAuthenticator) { ++ tor_asprintf(&uri, "http://%s:%d", addr, options->HTTPSProxyPort); ++ } else { ++ tor_asprintf(&uri, "http://%s@%s:%d", options->HTTPSProxyAuthenticator, ++ addr, options->HTTPSProxyPort); ++ } ++ } ++ } ++ ++ return uri; ++} ++ + /** Handle a configured or broken managed proxy <b>mp</b>. */ + static void + handle_finished_proxy(managed_proxy_t *mp) +@@ -743,6 +801,12 @@ handle_finished_proxy(managed_proxy_t *mp) + managed_proxy_destroy(mp, 0); /* destroy it but don't terminate */ + break; + case PT_PROTO_CONFIGURED: /* if configured correctly: */ ++ if (mp->proxy_uri && !mp->proxy_supported) { ++ log_warn(LD_CONFIG, "Managed proxy '%s' did not configure the " ++ "specified outgoing proxy.", mp->argv[0]); ++ managed_proxy_destroy(mp, 1); /* annihilate it. */ ++ break; ++ } + register_proxy(mp); /* register its transports */ + mp->conf_state = PT_PROTO_COMPLETED; /* and mark it as completed. */ + break; +@@ -860,6 +924,22 @@ handle_proxy_line(const char *line, managed_proxy_t *mp) + goto err; + + return; ++ } else if (!strcmpstart(line, PROTO_PROXY_DONE)) { ++ if (mp->conf_state != PT_PROTO_ACCEPTING_METHODS) ++ goto err; ++ ++ if (mp->proxy_uri) { ++ mp->proxy_supported = 1; ++ return; ++ } ++ ++ /* No proxy was configured, this should log */ ++ } else if (!strcmpstart(line, PROTO_PROXY_ERROR)) { ++ if (mp->conf_state != PT_PROTO_ACCEPTING_METHODS) ++ goto err; ++ ++ parse_proxy_error(line); ++ goto err; + } else if (!strcmpstart(line, SPAWN_ERROR_MESSAGE)) { + /* managed proxy launch failed: parse error message to learn why. */ + int retval, child_state, saved_errno; +@@ -1126,6 +1206,21 @@ parse_cmethod_line(const char *line, managed_proxy_t *mp) + return r; + } + ++/** Parses an PROXY-ERROR <b>line</b> and warns the user accordingly. */ ++STATIC void ++parse_proxy_error(const char *line) ++{ ++ /* (Length of the protocol string) plus (a space) and (the first char of ++ the error message) */ ++ if (strlen(line) < (strlen(PROTO_PROXY_ERROR) + 2)) ++ log_notice(LD_CONFIG, "Managed proxy sent us an %s without an error " ++ "message.", PROTO_PROXY_ERROR); ++ ++ log_warn(LD_CONFIG, "Managed proxy failed to configure the " ++ "pluggable transport's outgoing proxy. (%s)", ++ line+strlen(PROTO_PROXY_ERROR)+1); ++} ++ + /** 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. */ +@@ -1286,6 +1381,14 @@ create_managed_proxy_environment(const managed_proxy_t *mp) + } else { + smartlist_add_asprintf(envs, "TOR_PT_EXTENDED_SERVER_PORT="); + } ++ } else { ++ /* If ClientTransportPlugin has a HTTPS/SOCKS proxy configured, set the ++ * TOR_PT_PROXY line. ++ */ ++ ++ if (mp->proxy_uri) { ++ smartlist_add_asprintf(envs, "TOR_PT_PROXY=%s", mp->proxy_uri); ++ } + } + + SMARTLIST_FOREACH_BEGIN(envs, const char *, env_var) { +@@ -1318,6 +1421,7 @@ managed_proxy_create(const smartlist_t *transport_list, + mp->is_server = is_server; + mp->argv = proxy_argv; + mp->transports = smartlist_new(); ++ mp->proxy_uri = get_pt_proxy_uri(); + + mp->transports_to_launch = smartlist_new(); + SMARTLIST_FOREACH(transport_list, const char *, transport, +diff --git a/src/or/transports.h b/src/or/transports.h +index 7b524f2..5b8144b 100644 +--- a/src/or/transports.h ++++ b/src/or/transports.h +@@ -81,6 +81,9 @@ typedef struct { + char **argv; /* the cli arguments of this proxy */ + int conf_protocol; /* the configuration protocol version used */ + ++ char *proxy_uri; /* the outgoing proxy in TOR_PT_PROXY URI format */ ++ int proxy_supported : 1; /* the proxy claims to honor TOR_PT_PROXY */ ++ + int is_server; /* is it a server proxy? */ + + /* A pointer to the process handle of this managed proxy. */ +@@ -112,6 +115,7 @@ STATIC int parse_smethod_line(const char *line, managed_proxy_t *mp); + + STATIC int parse_version(const char *line, managed_proxy_t *mp); + STATIC void parse_env_error(const char *line); ++STATIC void parse_proxy_error(const char *line); + STATIC void handle_proxy_line(const char *line, managed_proxy_t *mp); + STATIC char *get_transport_options_for_server_proxy(const managed_proxy_t *mp); + +@@ -123,6 +127,8 @@ STATIC managed_proxy_t *managed_proxy_create(const smartlist_t *transport_list, + + STATIC int configure_proxy(managed_proxy_t *mp); + ++STATIC char* get_pt_proxy_uri(void); ++ + #endif + + #endif +diff --git a/src/test/test_pt.c b/src/test/test_pt.c +index 3277921..ada8dbe 100644 +--- a/src/test/test_pt.c ++++ b/src/test/test_pt.c +@@ -435,6 +435,85 @@ test_pt_configure_proxy(void *arg) + } + } + ++/* Test the get_pt_proxy_uri() function. */ ++static void ++test_get_pt_proxy_uri(void *arg) ++{ ++ or_options_t *options = get_options_mutable(); ++ char *uri = NULL; ++ int ret; ++ (void) arg; ++ ++ /* Test with no proxy. */ ++ uri = get_pt_proxy_uri(); ++ tt_assert(uri == NULL); ++ ++ /* Test with a SOCKS4 proxy. */ ++ options->Socks4Proxy = "192.0.2.1:1080"; ++ ret = tor_addr_port_lookup(options->Socks4Proxy, ++ &options->Socks4ProxyAddr, ++ &options->Socks4ProxyPort); ++ tt_assert(ret == 0); ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "socks4a://192.0.2.1:1080"); ++ tor_free(uri); ++ ++ options->Socks4Proxy = NULL; ++ ++ /* Test with a SOCKS5 proxy, no username/password. */ ++ options->Socks5Proxy = "192.0.2.1:1080"; ++ ret = tor_addr_port_lookup(options->Socks5Proxy, ++ &options->Socks5ProxyAddr, ++ &options->Socks5ProxyPort); ++ tt_assert(ret == 0); ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "socks5://192.0.2.1:1080"); ++ tor_free(uri); ++ ++ /* Test with a SOCKS5 proxy, with username/password. */ ++ options->Socks5ProxyUsername = "hwest"; ++ options->Socks5ProxyPassword = "r34n1m470r"; ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "socks5://hwest:r34n1m470r@192.0.2.1:1080"); ++ tor_free(uri); ++ ++ options->Socks5Proxy = NULL; ++ ++ /* Test with a HTTPS proxy, no authenticator. */ ++ options->HTTPSProxy = "192.0.2.1:80"; ++ ret = tor_addr_port_lookup(options->HTTPSProxy, ++ &options->HTTPSProxyAddr, ++ &options->HTTPSProxyPort); ++ tt_assert(ret == 0); ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "http://192.0.2.1:80"); ++ tor_free(uri); ++ ++ /* Test with a HTTPS proxy, with authenticator. */ ++ options->HTTPSProxyAuthenticator = "hwest:r34n1m470r"; ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "http://hwest:r34n1m470r@192.0.2.1:80"); ++ tor_free(uri); ++ ++ options->HTTPSProxy = NULL; ++ ++ /* Token nod to the fact that IPv6 exists. */ ++ options->Socks4Proxy = "[2001:db8::1]:1080"; ++ ret = tor_addr_port_lookup(options->Socks4Proxy, ++ &options->Socks4ProxyAddr, ++ &options->Socks4ProxyPort); ++ tt_assert(ret == 0); ++ uri = get_pt_proxy_uri(); ++ tt_str_op(uri, ==, "socks4a://[2001:db8::1]:1080"); ++ tor_free(uri); ++ ++ ++ done: ++ if (uri) ++ tor_free(uri); ++} ++ ++ + #define PT_LEGACY(name) \ + { #name, legacy_test_helper, 0, &legacy_setup, test_pt_ ## name } + +@@ -447,6 +526,8 @@ struct testcase_t pt_tests[] = { + NULL, NULL }, + { "configure_proxy",test_pt_configure_proxy, TT_FORK, + NULL, NULL }, ++ { "get_pt_proxy_uri", test_get_pt_proxy_uri, TT_FORK, ++ NULL, NULL }, + END_OF_TESTCASES + }; + +-- +1.8.1.2 + +From bc59556e87a0b0ebaf2adfc57147522f05b3f974 Mon Sep 17 00:00:00 2001 +From: Yawning Angel yawning@schwanenlied.me +Date: Mon, 14 Apr 2014 21:51:34 +0000 +Subject: [PATCH 2/5] Fixed the test build with --enable-gcc-warnings + +--- + src/test/test_pt.c | 28 ++++++++++++++-------------- + 1 file changed, 14 insertions(+), 14 deletions(-) + +diff --git a/src/test/test_pt.c b/src/test/test_pt.c +index ada8dbe..ac604eb 100644 +--- a/src/test/test_pt.c ++++ b/src/test/test_pt.c +@@ -449,7 +449,7 @@ test_get_pt_proxy_uri(void *arg) + tt_assert(uri == NULL); + + /* Test with a SOCKS4 proxy. */ +- options->Socks4Proxy = "192.0.2.1:1080"; ++ options->Socks4Proxy = tor_strdup("192.0.2.1:1080"); + ret = tor_addr_port_lookup(options->Socks4Proxy, + &options->Socks4ProxyAddr, + &options->Socks4ProxyPort); +@@ -457,11 +457,10 @@ test_get_pt_proxy_uri(void *arg) + uri = get_pt_proxy_uri(); + tt_str_op(uri, ==, "socks4a://192.0.2.1:1080"); + tor_free(uri); +- +- options->Socks4Proxy = NULL; ++ tor_free(options->Socks4Proxy); + + /* Test with a SOCKS5 proxy, no username/password. */ +- options->Socks5Proxy = "192.0.2.1:1080"; ++ options->Socks5Proxy = tor_strdup("192.0.2.1:1080"); + ret = tor_addr_port_lookup(options->Socks5Proxy, + &options->Socks5ProxyAddr, + &options->Socks5ProxyPort); +@@ -471,16 +470,17 @@ test_get_pt_proxy_uri(void *arg) + tor_free(uri); + + /* Test with a SOCKS5 proxy, with username/password. */ +- options->Socks5ProxyUsername = "hwest"; +- options->Socks5ProxyPassword = "r34n1m470r"; ++ options->Socks5ProxyUsername = tor_strdup("hwest"); ++ options->Socks5ProxyPassword = tor_strdup("r34n1m470r"); + uri = get_pt_proxy_uri(); + tt_str_op(uri, ==, "socks5://hwest:r34n1m470r@192.0.2.1:1080"); + tor_free(uri); +- +- options->Socks5Proxy = NULL; ++ tor_free(options->Socks5Proxy); ++ tor_free(options->Socks5ProxyUsername); ++ tor_free(options->Socks5ProxyPassword); + + /* Test with a HTTPS proxy, no authenticator. */ +- options->HTTPSProxy = "192.0.2.1:80"; ++ options->HTTPSProxy = tor_strdup("192.0.2.1:80"); + ret = tor_addr_port_lookup(options->HTTPSProxy, + &options->HTTPSProxyAddr, + &options->HTTPSProxyPort); +@@ -490,15 +490,15 @@ test_get_pt_proxy_uri(void *arg) + tor_free(uri); + + /* Test with a HTTPS proxy, with authenticator. */ +- options->HTTPSProxyAuthenticator = "hwest:r34n1m470r"; ++ options->HTTPSProxyAuthenticator = tor_strdup("hwest:r34n1m470r"); + uri = get_pt_proxy_uri(); + tt_str_op(uri, ==, "http://hwest:r34n1m470r@192.0.2.1:80"); + tor_free(uri); +- +- options->HTTPSProxy = NULL; ++ tor_free(options->HTTPSProxy); ++ tor_free(options->HTTPSProxyAuthenticator); + + /* Token nod to the fact that IPv6 exists. */ +- options->Socks4Proxy = "[2001:db8::1]:1080"; ++ options->Socks4Proxy = tor_strdup("[2001:db8::1]:1080"); + ret = tor_addr_port_lookup(options->Socks4Proxy, + &options->Socks4ProxyAddr, + &options->Socks4ProxyPort); +@@ -506,7 +506,7 @@ test_get_pt_proxy_uri(void *arg) + uri = get_pt_proxy_uri(); + tt_str_op(uri, ==, "socks4a://[2001:db8::1]:1080"); + tor_free(uri); +- ++ tor_free(options->Socks4Proxy); + + done: + if (uri) +-- +1.8.1.2 + +From 3c991178926f39ffacef1d86e403f5d360d30404 Mon Sep 17 00:00:00 2001 +From: Yawning Angel yawning@schwanenlied.me +Date: Thu, 1 May 2014 03:30:09 +0000 +Subject: [PATCH 3/5] Remove get_bridge_pt_addrport(). + +The code was not disambiguating ClientTransportPlugin configured and +not used, and ClientTransportPlugin configured, but in a failed state. + +The right thing to do is to undo moving the get_transport_by_addrport() +call back into get_proxy_addrport(), and remove and explicit check for +using a Bridge since by the time the check is made, if a Bridge is +being used, it is PT/proxy-less. +--- + src/or/connection.c | 46 ++++++++++++---------------------------------- + 1 file changed, 12 insertions(+), 34 deletions(-) + +diff --git a/src/or/connection.c b/src/or/connection.c +index 93d164c..9a766d6 100644 +--- a/src/or/connection.c ++++ b/src/or/connection.c +@@ -86,8 +86,6 @@ static int connection_read_https_proxy_response(connection_t *conn); + static void connection_send_socks5_connect(connection_t *conn); + static const char *proxy_type_to_string(int proxy_type); + static int get_proxy_type(void); +-static int get_bridge_pt_addrport(tor_addr_t *addr, uint16_t *port, +- int *proxy_type, const connection_t *conn); + + /** The last addresses that our network interface seemed to have been + * binding to. We use this as one way to detect when our IP changes. +@@ -4735,35 +4733,6 @@ assert_connection_ok(connection_t *conn, time_t now) + } + + /** Fills <b>addr</b> and <b>port</b> with the details of the global +- * pluggable transport or bridge we are using. +- * <b>conn</b> contains the connection we are using the PT/bridge for. +- * +- * Return 0 on success, -1 on failure. +- */ +-static int +-get_bridge_pt_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, +- const connection_t *conn) +-{ +- const or_options_t *options = get_options(); +- +- if (options->ClientTransportPlugin || options->Bridges) { +- const transport_t *transport = NULL; +- int r; +- r = get_transport_by_bridge_addrport(&conn->addr, conn->port, &transport); +- if (r<0) +- return -1; +- if (transport) { /* transport found */ +- tor_addr_copy(addr, &transport->addr); +- *port = transport->port; +- *proxy_type = transport->socks_version; +- return 0; +- } +- } +- +- return -1; +-} +- +-/** Fills <b>addr</b> and <b>port</b> with the details of the global + * proxy server we are using. + * <b>conn</b> contains the connection we are using the proxy for. + * +@@ -4781,8 +4750,19 @@ get_proxy_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, + * the config to have unused ClientTransportPlugin entries. + */ + if (options->ClientTransportPlugin) { +- if (get_bridge_pt_addrport(addr, port, proxy_type, conn) == 0) ++ const transport_t *transport = NULL; ++ int r; ++ r = get_transport_by_bridge_addrport(&conn->addr, conn->port, &transport); ++ if (r<0) ++ return -1; ++ if (transport) { /* transport found */ ++ tor_addr_copy(addr, &transport->addr); ++ *port = transport->port; ++ *proxy_type = transport->socks_version; + return 0; ++ } ++ ++ /* Unused ClientTransportPlugin. */ + } + + if (options->HTTPSProxy) { +@@ -4800,8 +4780,6 @@ get_proxy_addrport(tor_addr_t *addr, uint16_t *port, int *proxy_type, + *port = options->Socks5ProxyPort; + *proxy_type = PROXY_SOCKS5; + return 0; +- } else if (options->Bridges) { +- return get_bridge_pt_addrport(addr, port, proxy_type, conn); + } + + *proxy_type = PROXY_NONE; +-- +1.8.1.2 + +From c4c41bb8e31ab39f2c7fe3c8f11ee727a65c3e09 Mon Sep 17 00:00:00 2001 +From: Yawning Angel yawning@schwanenlied.me +Date: Thu, 1 May 2014 03:43:53 +0000 +Subject: [PATCH 4/5] Log the correct proxy type on failure. + +get_proxy_addrport fills in proxy_type with the correct value, so there +is no point in logging something that's a "best guess" based off the +config. +--- + src/or/connection.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/or/connection.c b/src/or/connection.c +index 9a766d6..b2e6a69 100644 +--- a/src/or/connection.c ++++ b/src/or/connection.c +@@ -4801,7 +4801,7 @@ log_failed_proxy_connection(connection_t *conn) + log_warn(LD_NET, + "The connection to the %s proxy server at %s just failed. " + "Make sure that the proxy server is up and running.", +- proxy_type_to_string(get_proxy_type()), ++ proxy_type_to_string(proxy_type), + fmt_addrport(&proxy_addr, proxy_port)); + } + +-- +1.8.1.2 + +From e3b5b7f4b9e5ef4637f0719d54be9f534e41019c Mon Sep 17 00:00:00 2001 +From: Yawning Angel yawning@schwanenlied.me +Date: Thu, 1 May 2014 18:58:53 +0000 +Subject: [PATCH 5/5] Improve the log message when a transport doesn't support + proxies. + +Per feedback, explicltly note that the transport will be killed when it +does not acknowledge the configured outgoing proxy. +--- + src/or/transports.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/src/or/transports.c b/src/or/transports.c +index 8e82a41..3991bd3 100644 +--- a/src/or/transports.c ++++ b/src/or/transports.c +@@ -803,7 +803,8 @@ handle_finished_proxy(managed_proxy_t *mp) + case PT_PROTO_CONFIGURED: /* if configured correctly: */ + if (mp->proxy_uri && !mp->proxy_supported) { + log_warn(LD_CONFIG, "Managed proxy '%s' did not configure the " +- "specified outgoing proxy.", mp->argv[0]); ++ "specified outgoing proxy and will be terminated.", ++ mp->argv[0]); + managed_proxy_destroy(mp, 1); /* annihilate it. */ + break; + } +-- +1.8.1.2 +