-/*
- This file is part of GNUnet
- (C) 2007, 2009, 2011, 2012 Christian Grothoff
-
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
- option) any later version.
-
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
-*/
-
-/**
- * @file test_gnunet_vpn.c
- * @brief testcase for tunneling HTTP over the GNUnet VPN
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <microhttpd.h>
-#include "gnunet_vpn_service.h"
-#include "gnunet_testing_lib.h"
-
-#define PORT 48080
-
-#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
-
-
-/**
- * Return value for 'main'.
- */
-static int global_ret;
-
-static struct GNUNET_VPN_Handle *vpn;
-
-static struct MHD_Daemon *mhd;
-
-static GNUNET_SCHEDULER_TaskIdentifier mhd_task_id;
-
-static GNUNET_SCHEDULER_TaskIdentifier curl_task_id;
-
-static GNUNET_SCHEDULER_TaskIdentifier ctrl_c_task_id;
-
-static struct GNUNET_VPN_RedirectionRequest *rr;
-
-static CURL *curl;
-
-static CURLM *multi;
-
-static char *url;
-
-/**
- * IP address of the ultimate destination.
- */
-static const char *dest_ip;
-
-/**
- * Address family of the dest_ip.
- */
-static int dest_af;
-
-/**
- * Address family to use by the curl client.
- */
-static int src_af;
-
-
-struct CBC
-{
- char buf[1024];
- size_t pos;
-};
-
-static struct CBC cbc;
-
-
-static size_t
-copy_buffer (void *ptr, size_t size, size_t nmemb, void *ctx)
-{
- struct CBC *cbc = ctx;
-
- if (cbc->pos + size * nmemb > sizeof (cbc->buf))
- return 0; /* overflow */
- memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
- cbc->pos += size * nmemb;
- return size * nmemb;
-}
-
-
-static int
-mhd_ahc (void *cls, struct MHD_Connection *connection, const char *url,
- const char *method, const char *version, const char *upload_data,
- size_t * upload_data_size, void **unused)
-{
- static int ptr;
- struct MHD_Response *response;
- int ret;
-
- if (0 != strcmp ("GET", method))
- return MHD_NO; /* unexpected method */
- if (&ptr != *unused)
- {
- *unused = &ptr;
- return MHD_YES;
- }
- *unused = NULL;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "MHD sends respose for request to URL `%s'\n", url);
- response =
- MHD_create_response_from_buffer (strlen (url), (void *) url,
- MHD_RESPMEM_MUST_COPY);
- ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
- MHD_destroy_response (response);
- if (ret == MHD_NO)
- abort ();
- return ret;
-}
-
-
-static void
-do_shutdown ()
-{
- if (mhd_task_id != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (mhd_task_id);
- mhd_task_id = GNUNET_SCHEDULER_NO_TASK;
- }
- if (curl_task_id != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (curl_task_id);
- curl_task_id = GNUNET_SCHEDULER_NO_TASK;
- }
- if (ctrl_c_task_id != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (ctrl_c_task_id);
- ctrl_c_task_id = GNUNET_SCHEDULER_NO_TASK;
- }
- if (NULL != mhd)
- {
- MHD_stop_daemon (mhd);
- mhd = NULL;
- }
- if (NULL != rr)
- {
- GNUNET_VPN_cancel_request (rr);
- rr = NULL;
- }
- if (NULL != vpn)
- {
- GNUNET_VPN_disconnect (vpn);
- vpn = NULL;
- }
- GNUNET_free_non_null (url);
- url = NULL;
-}
-
-
-/**
- * Function to run the HTTP client.
- */
-static void
-curl_main (void);
-
-
-static void
-curl_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- curl_task_id = GNUNET_SCHEDULER_NO_TASK;
- curl_main ();
-}
-
-
-static void
-curl_main ()
-{
- fd_set rs;
- fd_set ws;
- fd_set es;
- int max;
- struct GNUNET_NETWORK_FDSet nrs;
- struct GNUNET_NETWORK_FDSet nws;
- struct GNUNET_TIME_Relative delay;
- long timeout;
- int running;
- struct CURLMsg *msg;
-
- max = 0;
- FD_ZERO (&rs);
- FD_ZERO (&ws);
- FD_ZERO (&es);
- curl_multi_perform (multi, &running);
- if (running == 0)
- {
- GNUNET_assert (NULL != (msg = curl_multi_info_read (multi, &running)));
- if (msg->msg == CURLMSG_DONE)
- {
- if (msg->data.result != CURLE_OK)
- {
- fprintf (stderr, "%s failed at %s:%d: `%s'\n", "curl_multi_perform",
- __FILE__, __LINE__, curl_easy_strerror (msg->data.result));
- global_ret = 1;
- }
- }
- curl_multi_remove_handle (multi, curl);
- curl_multi_cleanup (multi);
- curl_easy_cleanup (curl);
- curl = NULL;
- multi = NULL;
- if (cbc.pos != strlen ("/hello_world"))
- {
- GNUNET_break (0);
- global_ret = 2;
- }
- if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "You might want to check if your host-based firewall is blocking the connections.\n");
- global_ret = 3;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Download complete, shutting down!\n");
- do_shutdown ();
- return;
- }
- GNUNET_assert (CURLM_OK == curl_multi_fdset (multi, &rs, &ws, &es, &max));
- if ((CURLM_OK != curl_multi_timeout (multi, &timeout)) || (-1 == timeout))
- delay = GNUNET_TIME_UNIT_SECONDS;
- else
- delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
- (unsigned int) timeout);
- GNUNET_NETWORK_fdset_copy_native (&nrs, &rs, max + 1);
- GNUNET_NETWORK_fdset_copy_native (&nws, &ws, max + 1);
- curl_task_id =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, delay,
- &nrs, &nws, &curl_task, NULL);
-}
-
-
-/**
- * Callback invoked from the VPN service once a redirection is
- * available. Provides the IP address that can now be used to
- * reach the requested destination (in our case, the MHD server)
- *
- * @param cls closure
- * @param af address family, AF_INET or AF_INET6; AF_UNSPEC on error;
- * will match 'result_af' from the request
- * @param address IP address (struct in_addr or struct in_addr6, depending on 'af')
- * that the VPN allocated for the redirection;
- * traffic to this IP will now be redirected to the
- * specified target peer; NULL on error
- */
-static void
-allocation_cb (void *cls, int af, const void *address)
-{
- char ips[INET6_ADDRSTRLEN];
-
- rr = NULL;
- if (src_af != af)
- {
- fprintf (stderr, "VPN failed to allocate appropriate address\n");
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- GNUNET_asprintf (&url, "http://%s:%u/hello_world",
- inet_ntop (af, address, ips, sizeof (ips)),
- (unsigned int) PORT);
- curl = curl_easy_init ();
- curl_easy_setopt (curl, CURLOPT_URL, url);
- curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, ©_buffer);
- curl_easy_setopt (curl, CURLOPT_WRITEDATA, &cbc);
- curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
- curl_easy_setopt (curl, CURLOPT_TIMEOUT, 150L);
- curl_easy_setopt (curl, CURLOPT_CONNECTTIMEOUT, 15L);
- curl_easy_setopt (curl, CURLOPT_NOSIGNAL, 1);
-
- multi = curl_multi_init ();
- GNUNET_assert (multi != NULL);
- GNUNET_assert (CURLM_OK == curl_multi_add_handle (multi, curl));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Beginning HTTP download from `%s'\n",
- url);
- curl_main ();
-}
-
-
-/**
- * Function to keep the HTTP server running.
- */
-static void
-mhd_main (void);
-
-
-static void
-mhd_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- mhd_task_id = GNUNET_SCHEDULER_NO_TASK;
- MHD_run (mhd);
- mhd_main ();
-}
-
-
-static void
-ctrl_c_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- ctrl_c_task_id = GNUNET_SCHEDULER_NO_TASK;
- do_shutdown ();
- GNUNET_break (0);
- global_ret = 1;
-}
-
-
-static void
-mhd_main ()
-{
- struct GNUNET_NETWORK_FDSet nrs;
- struct GNUNET_NETWORK_FDSet nws;
- fd_set rs;
- fd_set ws;
- fd_set es;
- int max_fd;
- unsigned MHD_LONG_LONG timeout;
- struct GNUNET_TIME_Relative delay;
-
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == mhd_task_id);
- FD_ZERO (&rs);
- FD_ZERO (&ws);
- FD_ZERO (&es);
- max_fd = -1;
- GNUNET_assert (MHD_YES == MHD_get_fdset (mhd, &rs, &ws, &es, &max_fd));
- if (MHD_YES == MHD_get_timeout (mhd, &timeout))
- delay =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
- (unsigned int) timeout);
- else
- delay = GNUNET_TIME_UNIT_FOREVER_REL;
- GNUNET_NETWORK_fdset_copy_native (&nrs, &rs, max_fd + 1);
- GNUNET_NETWORK_fdset_copy_native (&nws, &ws, max_fd + 1);
- mhd_task_id =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, delay,
- &nrs, &nws, &mhd_task, NULL);
-}
-
-
-static void
-run (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TESTING_Peer *peer)
-{
- struct in_addr v4;
- struct in6_addr v6;
- void *addr;
- enum MHD_FLAG flags;
-
- vpn = GNUNET_VPN_connect (cfg);
- GNUNET_assert (NULL != vpn);
- flags = MHD_USE_DEBUG;
- if (AF_INET6 == dest_af)
- flags |= MHD_USE_IPv6;
- mhd =
- MHD_start_daemon (flags, PORT, NULL, NULL, &mhd_ahc, NULL,
- MHD_OPTION_END);
- GNUNET_assert (NULL != mhd);
- mhd_main ();
- addr = NULL;
- switch (dest_af)
- {
- case AF_INET:
- GNUNET_assert (1 == inet_pton (dest_af, dest_ip, &v4));
- addr = &v4;
- break;
- case AF_INET6:
- GNUNET_assert (1 == inet_pton (dest_af, dest_ip, &v6));
- addr = &v6;
- break;
- default:
- GNUNET_assert (0);
- }
- rr = GNUNET_VPN_redirect_to_ip (vpn, src_af, dest_af, addr, GNUNET_YES,
- GNUNET_TIME_UNIT_FOREVER_ABS, &allocation_cb,
- NULL);
- ctrl_c_task_id =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &ctrl_c_shutdown, NULL);
-}
-
-
-int
-main (int argc, char *const *argv)
-{
- const char *type;
- const char *bin;
- char *vpn_binary;
- char *exit_binary;
-
- if (0 != ACCESS ("/dev/net/tun", R_OK))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "access",
- "/dev/net/tun");
- fprintf (stderr, "WARNING: System unable to run test, skipping.\n");
- return 0;
- }
- vpn_binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-vpn");
- exit_binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-exit");
- if ((GNUNET_YES != GNUNET_OS_check_helper_binary (vpn_binary)) ||
- (GNUNET_YES != GNUNET_OS_check_helper_binary (exit_binary)))
- {
- GNUNET_free (vpn_binary);
- GNUNET_free (exit_binary);
- fprintf (stderr,
- "WARNING: gnunet-helper-{exit,vpn} binaries are not SUID, refusing to run test (as it would have to fail).\n");
- return 0;
- }
- GNUNET_free (vpn_binary);
- GNUNET_free (exit_binary);
- GNUNET_CRYPTO_rsa_setup_hostkey ("test_gnunet_vpn.conf");
- bin = argv[0];
- if (NULL != strstr (bin, "lt-"))
- bin = strstr (bin, "lt-") + 4;
- type = strstr (bin, "-");
- if (NULL == type)
- {
- fprintf (stderr, "invalid binary name\n");
- return 1;
- }
- type++;
- if (0 == strcmp (type, "4_to_6"))
- {
- dest_ip = "FC5A:04E1:C2BA::1";
- dest_af = AF_INET6;
- src_af = AF_INET;
- }
- else if (0 == strcmp (type, "6_to_4"))
- {
- dest_ip = "169.254.86.1";
- dest_af = AF_INET;
- src_af = AF_INET6;
- }
- else if (0 == strcmp (type, "4_over"))
- {
- dest_ip = "169.254.86.1";
- dest_af = AF_INET;
- src_af = AF_INET;
- }
- else if (0 == strcmp (type, "6_over"))
- {
- dest_ip = "FC5A:04E1:C2BA::1";
- dest_af = AF_INET6;
- src_af = AF_INET6;
- }
- else
- {
- fprintf (stderr, "invalid binary suffix `%s'\n", type);
- return 1;
- }
- if ((GNUNET_OK != GNUNET_NETWORK_test_pf (src_af)) ||
- (GNUNET_OK != GNUNET_NETWORK_test_pf (dest_af)))
- {
- fprintf (stderr,
- "Required address families not supported by this system, skipping test.\n");
- return 0;
- }
- if (0 != curl_global_init (CURL_GLOBAL_WIN32))
- {
- fprintf (stderr, "failed to initialize curl\n");
- return 2;
- }
- if (0 !=
- GNUNET_TESTING_peer_run ("test-gnunet-vpn", "test_gnunet_vpn.conf", &run,
- NULL))
- return 1;
- GNUNET_DISK_directory_remove ("/tmp/gnunet-test-vpn");
- return global_ret;
-}
-
-/* end of test_gnunet_vpn.c */
+/*\r
+ This file is part of GNUnet\r
+ (C) 2007, 2009, 2011, 2012 Christian Grothoff\r
+\r
+ GNUnet is free software; you can redistribute it and/or modify\r
+ it under the terms of the GNU General Public License as published\r
+ by the Free Software Foundation; either version 2, or (at your\r
+ option) any later version.\r
+\r
+ GNUnet is distributed in the hope that it will be useful, but\r
+ WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
+ General Public License for more details.\r
+\r
+ You should have received a copy of the GNU General Public License\r
+ along with GNUnet; see the file COPYING. If not, write to the\r
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,\r
+ Boston, MA 02111-1307, USA.\r
+*/\r
+\r
+/**\r
+ * @file test_gnunet_vpn.c\r
+ * @brief testcase for tunneling HTTP over the GNUnet VPN\r
+ * @author Christian Grothoff\r
+ */\r
+#include "platform.h"\r
+#include <curl/curl.h>\r
+#include <microhttpd.h>\r
+#include "gnunet_vpn_service.h"\r
+#include "gnunet_testing_lib.h"\r
+\r
+#define PORT 48080\r
+\r
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)\r
+\r
+\r
+/**\r
+ * Return value for 'main'.\r
+ */\r
+static int global_ret;\r
+\r
+static struct GNUNET_VPN_Handle *vpn;\r
+\r
+static struct MHD_Daemon *mhd;\r
+\r
+static GNUNET_SCHEDULER_TaskIdentifier mhd_task_id;\r
+\r
+static GNUNET_SCHEDULER_TaskIdentifier curl_task_id;\r
+\r
+static GNUNET_SCHEDULER_TaskIdentifier ctrl_c_task_id;\r
+\r
+static struct GNUNET_VPN_RedirectionRequest *rr;\r
+\r
+static CURL *curl;\r
+\r
+static CURLM *multi;\r
+\r
+static char *url;\r
+\r
+/**\r
+ * IP address of the ultimate destination.\r
+ */\r
+static const char *dest_ip;\r
+\r
+/**\r
+ * Address family of the dest_ip.\r
+ */\r
+static int dest_af;\r
+\r
+/**\r
+ * Address family to use by the curl client.\r
+ */\r
+static int src_af;\r
+\r
+\r
+struct CBC\r
+{\r
+ char buf[1024];\r
+ size_t pos;\r
+};\r
+\r
+static struct CBC cbc;\r
+\r
+\r
+static size_t\r
+copy_buffer (void *ptr, size_t size, size_t nmemb, void *ctx)\r
+{\r
+ struct CBC *cbc = ctx;\r
+\r
+ if (cbc->pos + size * nmemb > sizeof (cbc->buf))\r
+ return 0; /* overflow */\r
+ memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);\r
+ cbc->pos += size * nmemb;\r
+ return size * nmemb;\r
+}\r
+\r
+\r
+static int\r
+mhd_ahc (void *cls, struct MHD_Connection *connection, const char *url,\r
+ const char *method, const char *version, const char *upload_data,\r
+ size_t * upload_data_size, void **unused)\r
+{\r
+ static int ptr;\r
+ struct MHD_Response *response;\r
+ int ret;\r
+\r
+ if (0 != strcmp ("GET", method))\r
+ return MHD_NO; /* unexpected method */\r
+ if (&ptr != *unused)\r
+ {\r
+ *unused = &ptr;\r
+ return MHD_YES;\r
+ }\r
+ *unused = NULL;\r
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,\r
+ "MHD sends respose for request to URL `%s'\n", url);\r
+ response =\r
+ MHD_create_response_from_buffer (strlen (url), (void *) url,\r
+ MHD_RESPMEM_MUST_COPY);\r
+ ret = MHD_queue_response (connection, MHD_HTTP_OK, response);\r
+ MHD_destroy_response (response);\r
+ if (ret == MHD_NO)\r
+ abort ();\r
+ return ret;\r
+}\r
+\r
+\r
+static void\r
+do_shutdown ()\r
+{\r
+ if (mhd_task_id != GNUNET_SCHEDULER_NO_TASK)\r
+ {\r
+ GNUNET_SCHEDULER_cancel (mhd_task_id);\r
+ mhd_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ }\r
+ if (curl_task_id != GNUNET_SCHEDULER_NO_TASK)\r
+ {\r
+ GNUNET_SCHEDULER_cancel (curl_task_id);\r
+ curl_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ }\r
+ if (ctrl_c_task_id != GNUNET_SCHEDULER_NO_TASK)\r
+ {\r
+ GNUNET_SCHEDULER_cancel (ctrl_c_task_id);\r
+ ctrl_c_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ }\r
+ if (NULL != mhd)\r
+ {\r
+ MHD_stop_daemon (mhd);\r
+ mhd = NULL;\r
+ }\r
+ if (NULL != rr)\r
+ {\r
+ GNUNET_VPN_cancel_request (rr);\r
+ rr = NULL;\r
+ }\r
+ if (NULL != vpn)\r
+ {\r
+ GNUNET_VPN_disconnect (vpn);\r
+ vpn = NULL;\r
+ }\r
+ GNUNET_free_non_null (url);\r
+ url = NULL;\r
+}\r
+\r
+\r
+/**\r
+ * Function to run the HTTP client.\r
+ */\r
+static void\r
+curl_main (void);\r
+\r
+\r
+static void\r
+curl_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)\r
+{\r
+ curl_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ curl_main ();\r
+}\r
+\r
+\r
+static void\r
+curl_main ()\r
+{\r
+ fd_set rs;\r
+ fd_set ws;\r
+ fd_set es;\r
+ int max;\r
+ struct GNUNET_NETWORK_FDSet nrs;\r
+ struct GNUNET_NETWORK_FDSet nws;\r
+ struct GNUNET_TIME_Relative delay;\r
+ long timeout;\r
+ int running;\r
+ struct CURLMsg *msg;\r
+\r
+ max = 0;\r
+ FD_ZERO (&rs);\r
+ FD_ZERO (&ws);\r
+ FD_ZERO (&es);\r
+ curl_multi_perform (multi, &running);\r
+ if (running == 0)\r
+ {\r
+ GNUNET_assert (NULL != (msg = curl_multi_info_read (multi, &running)));\r
+ if (msg->msg == CURLMSG_DONE)\r
+ {\r
+ if (msg->data.result != CURLE_OK)\r
+ {\r
+ fprintf (stderr, "%s failed at %s:%d: `%s'\n", "curl_multi_perform",\r
+ __FILE__, __LINE__, curl_easy_strerror (msg->data.result));\r
+ global_ret = 1;\r
+ }\r
+ }\r
+ curl_multi_remove_handle (multi, curl);\r
+ curl_multi_cleanup (multi);\r
+ curl_easy_cleanup (curl);\r
+ curl = NULL;\r
+ multi = NULL;\r
+ if (cbc.pos != strlen ("/hello_world"))\r
+ {\r
+ GNUNET_break (0);\r
+ global_ret = 2;\r
+ }\r
+ if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))\r
+ {\r
+ GNUNET_break (0);\r
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,\r
+ "You might want to check if your host-based firewall is blocking the connections.\n");\r
+ global_ret = 3;\r
+ }\r
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Download complete, shutting down!\n");\r
+ do_shutdown ();\r
+ return;\r
+ }\r
+ GNUNET_assert (CURLM_OK == curl_multi_fdset (multi, &rs, &ws, &es, &max));\r
+ if ((CURLM_OK != curl_multi_timeout (multi, &timeout)) || (-1 == timeout))\r
+ delay = GNUNET_TIME_UNIT_SECONDS;\r
+ else\r
+ delay =\r
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,\r
+ (unsigned int) timeout);\r
+ GNUNET_NETWORK_fdset_copy_native (&nrs, &rs, max + 1);\r
+ GNUNET_NETWORK_fdset_copy_native (&nws, &ws, max + 1);\r
+ curl_task_id =\r
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, delay,\r
+ &nrs, &nws, &curl_task, NULL);\r
+}\r
+\r
+\r
+/**\r
+ * Callback invoked from the VPN service once a redirection is\r
+ * available. Provides the IP address that can now be used to\r
+ * reach the requested destination (in our case, the MHD server)\r
+ *\r
+ * @param cls closure\r
+ * @param af address family, AF_INET or AF_INET6; AF_UNSPEC on error;\r
+ * will match 'result_af' from the request\r
+ * @param address IP address (struct in_addr or struct in_addr6, depending on 'af')\r
+ * that the VPN allocated for the redirection;\r
+ * traffic to this IP will now be redirected to the\r
+ * specified target peer; NULL on error\r
+ */\r
+static void\r
+allocation_cb (void *cls, int af, const void *address)\r
+{\r
+ char ips[INET6_ADDRSTRLEN];\r
+\r
+ rr = NULL;\r
+ if (src_af != af)\r
+ {\r
+ fprintf (stderr, "VPN failed to allocate appropriate address\n");\r
+ GNUNET_SCHEDULER_shutdown ();\r
+ return;\r
+ }\r
+ GNUNET_asprintf (&url, "http://%s:%u/hello_world",\r
+ inet_ntop (af, address, ips, sizeof (ips)),\r
+ (unsigned int) PORT);\r
+ curl = curl_easy_init ();\r
+ curl_easy_setopt (curl, CURLOPT_URL, url);\r
+ curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, ©_buffer);\r
+ curl_easy_setopt (curl, CURLOPT_WRITEDATA, &cbc);\r
+ curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);\r
+ curl_easy_setopt (curl, CURLOPT_TIMEOUT, 150L);\r
+ curl_easy_setopt (curl, CURLOPT_CONNECTTIMEOUT, 15L);\r
+ curl_easy_setopt (curl, CURLOPT_NOSIGNAL, 1);\r
+\r
+ multi = curl_multi_init ();\r
+ GNUNET_assert (multi != NULL);\r
+ GNUNET_assert (CURLM_OK == curl_multi_add_handle (multi, curl));\r
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Beginning HTTP download from `%s'\n",\r
+ url);\r
+ curl_main ();\r
+}\r
+\r
+\r
+/**\r
+ * Function to keep the HTTP server running.\r
+ */\r
+static void\r
+mhd_main (void);\r
+\r
+\r
+static void\r
+mhd_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)\r
+{\r
+ mhd_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ MHD_run (mhd);\r
+ mhd_main ();\r
+}\r
+\r
+\r
+static void\r
+ctrl_c_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)\r
+{\r
+ ctrl_c_task_id = GNUNET_SCHEDULER_NO_TASK;\r
+ do_shutdown ();\r
+ GNUNET_break (0);\r
+ global_ret = 1;\r
+}\r
+\r
+\r
+static void\r
+mhd_main ()\r
+{\r
+ struct GNUNET_NETWORK_FDSet nrs;\r
+ struct GNUNET_NETWORK_FDSet nws;\r
+ fd_set rs;\r
+ fd_set ws;\r
+ fd_set es;\r
+ int max_fd;\r
+ unsigned MHD_LONG_LONG timeout;\r
+ struct GNUNET_TIME_Relative delay;\r
+\r
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == mhd_task_id);\r
+ FD_ZERO (&rs);\r
+ FD_ZERO (&ws);\r
+ FD_ZERO (&es);\r
+ max_fd = -1;\r
+ GNUNET_assert (MHD_YES == MHD_get_fdset (mhd, &rs, &ws, &es, &max_fd));\r
+ if (MHD_YES == MHD_get_timeout (mhd, &timeout))\r
+ delay =\r
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,\r
+ (unsigned int) timeout);\r
+ else\r
+ delay = GNUNET_TIME_UNIT_FOREVER_REL;\r
+ GNUNET_NETWORK_fdset_copy_native (&nrs, &rs, max_fd + 1);\r
+ GNUNET_NETWORK_fdset_copy_native (&nws, &ws, max_fd + 1);\r
+ mhd_task_id =\r
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT, delay,\r
+ &nrs, &nws, &mhd_task, NULL);\r
+}\r
+\r
+\r
+static void\r
+run (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,\r
+ struct GNUNET_TESTING_Peer *peer)\r
+{\r
+ struct in_addr v4;\r
+ struct in6_addr v6;\r
+ void *addr;\r
+ enum MHD_FLAG flags;\r
+ \r
+ vpn = GNUNET_VPN_connect (cfg);\r
+ GNUNET_assert (NULL != vpn);\r
+ flags = MHD_USE_DEBUG;\r
+ if (AF_INET6 == dest_af)\r
+ flags |= MHD_USE_IPv6;\r
+ mhd =\r
+ MHD_start_daemon (flags, PORT, NULL, NULL, &mhd_ahc, NULL,\r
+ MHD_OPTION_END);\r
+ \r
+ \r
+ GNUNET_assert (NULL != mhd);\r
+ mhd_main ();\r
+ addr = NULL;\r
+ switch (dest_af)\r
+ {\r
+ case AF_INET:\r
+ GNUNET_assert (1 == inet_pton (dest_af, dest_ip, &v4));\r
+ addr = &v4;\r
+ break;\r
+ case AF_INET6:\r
+ GNUNET_assert (1 == inet_pton (dest_af, dest_ip, &v6));\r
+ addr = &v6;\r
+ break;\r
+ default:\r
+ GNUNET_assert (0);\r
+ }\r
+ rr = GNUNET_VPN_redirect_to_ip (vpn, src_af, dest_af, addr, GNUNET_YES,\r
+ GNUNET_TIME_UNIT_FOREVER_ABS, &allocation_cb,\r
+ NULL);\r
+ ctrl_c_task_id =\r
+ GNUNET_SCHEDULER_add_delayed (TIMEOUT, &ctrl_c_shutdown, NULL);\r
+}\r
+\r
+\r
+int\r
+main (int argc, char *const *argv)\r
+{\r
+ const char *type;\r
+ const char *bin;\r
+ char *vpn_binary;\r
+ char *exit_binary;\r
+\r
+#ifndef MINGW\r
+ if (0 != ACCESS ("/dev/net/tun", R_OK))\r
+ {\r
+ GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "access",\r
+ "/dev/net/tun");\r
+ fprintf (stderr, "WARNING: System unable to run test, skipping.\n");\r
+ return 0;\r
+ }\r
+#endif\r
+ vpn_binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-vpn");\r
+ exit_binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-exit");\r
+ if ((GNUNET_YES != GNUNET_OS_check_helper_binary (vpn_binary)) ||\r
+ (GNUNET_YES != GNUNET_OS_check_helper_binary (exit_binary)))\r
+ {\r
+ GNUNET_free (vpn_binary);\r
+ GNUNET_free (exit_binary);\r
+ fprintf (stderr,\r
+ "WARNING: gnunet-helper-{exit,vpn} binaries are not SUID, refusing to run test (as it would have to fail).\n");\r
+ return 0;\r
+ }\r
+\r
+ GNUNET_free (vpn_binary);\r
+ GNUNET_free (exit_binary);\r
+ GNUNET_CRYPTO_rsa_setup_hostkey ("test_gnunet_vpn.conf");\r
+ bin = argv[0];\r
+ if (NULL != strstr (bin, "lt-"))\r
+ bin = strstr (bin, "lt-") + 4;\r
+ type = strstr (bin, "-");\r
+ if (NULL == type)\r
+ {\r
+ fprintf (stderr, "invalid binary name\n");\r
+ return 1;\r
+ }\r
+ type++;\r
+ /* on Windows, .exe is suffixed to these binaries, \r
+ * thus cease comparison after the 6th char.\r
+ */\r
+ if (0 == strncmp (type, "4_to_6",6))\r
+ {\r
+ dest_ip = "FC5A:04E1:C2BA::1";\r
+ dest_af = AF_INET6;\r
+ src_af = AF_INET;\r
+ }\r
+ else if (0 == strncmp (type, "6_to_4",6))\r
+ {\r
+ dest_ip = "169.254.86.1";\r
+ dest_af = AF_INET;\r
+ src_af = AF_INET6;\r
+ }\r
+ else if (0 == strncmp (type, "4_over",6))\r
+ {\r
+ dest_ip = "169.254.86.1";\r
+ dest_af = AF_INET;\r
+ src_af = AF_INET;\r
+ }\r
+ else if (0 == strncmp (type, "6_over",6))\r
+ {\r
+ dest_ip = "FC5A:04E1:C2BA::1";\r
+ dest_af = AF_INET6;\r
+ src_af = AF_INET6;\r
+ }\r
+ else\r
+ {\r
+ fprintf (stderr, "invalid binary suffix `%s'\n", type);\r
+ return 1;\r
+ }\r
+ if ((GNUNET_OK != GNUNET_NETWORK_test_pf (src_af)) || \r
+ (GNUNET_OK != GNUNET_NETWORK_test_pf (dest_af)))\r
+ {\r
+ fprintf (stderr,\r
+ "Required address families not supported by this system, skipping test.\n");\r
+ return 0;\r
+ }\r
+ if (0 != curl_global_init (CURL_GLOBAL_WIN32))\r
+ {\r
+ fprintf (stderr, "failed to initialize curl\n");\r
+ return 2;\r
+ }\r
+ if (0 !=\r
+ GNUNET_TESTING_peer_run ("test-gnunet-vpn", "test_gnunet_vpn.conf", &run,\r
+ NULL))\r
+ return 1; \r
+ GNUNET_DISK_directory_remove ("/tmp/gnunet-test-vpn"); \r
+ return global_ret;\r
+}\r
+\r
+/* end of test_gnunet_vpn.c */\r
projects / oweals / gnunet.git / blobdiff