-minor code clean up and renaming dummy

1 files changed, 465 insertions, 0 deletions

diff --git a/src/transport/gnunet-transport-wlan-helper-dummy.c b/src/transport/gnunet-transport-wlan-helper-dummy.c
new file mode 100644
index 000000000..d4c300d25
--- /dev/null
+++ b/src/transport/gnunet-transport-wlan-helper-dummy.c
@@ -0,0 +1,465 @@
+/*
+ This file is part of GNUnet.
+ (C) 2010 Christian Grothoff (and other contributing authors)
+
+ 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 3, 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 transport/test_transport_wlan_dummy.c
+ * @brief helper for the testcases for plugin_transport_wlan.c
+ * @author David Brodski
+ */
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <errno.h>
+#include <resolv.h>
+#include <string.h>
+#include <utime.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "platform.h"
+#include "gnunet_constants.h"
+#include "gnunet_os_lib.h"
+#include "gnunet_transport_plugin.h"
+#include "transport.h"
+#include "gnunet_util_lib.h"
+#include "plugin_transport_wlan.h"
+#include "gnunet_common.h"
+//#include "gnunet-transport-wlan-helper.h"
+#include "gnunet_crypto_lib.h"
+#include "wlan/loopback_helper.h"
+#include "wlan/helper_common.h"
+
+static int first;
+
+static void
+sigfunc (int sig)
+{
+  closeprog = 1;
+  (void) unlink (FIFO_FILE1);
+  (void) unlink (FIFO_FILE2);
+}
+
+static void
+stdin_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
+{
+  struct sendbuf *write_pout = cls;
+  int sendsize;
+  struct GNUNET_MessageHeader newheader;
+  char *to_data;
+  char *to_radiotap;
+  char *to_start;
+
+  sendsize =
+      ntohs (hdr->size) - sizeof (struct Radiotap_Send) +
+      sizeof (struct Radiotap_rx);
+
+  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
+  {
+    fprintf (stderr, "Function stdin_send: wrong packet type\n");
+    exit (1);
+  }
+  if ((sendsize + write_pout->size) > MAXLINE * 2)
+  {
+    fprintf (stderr, "Function stdin_send: Packet too big for buffer\n");
+    exit (1);
+  }
+
+  newheader.size = htons (sendsize);
+  newheader.type = htons (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA);
+
+  to_start = write_pout->buf + write_pout->size;
+  memcpy (to_start, &newheader, sizeof (struct GNUNET_MessageHeader));
+  write_pout->size += sizeof (struct GNUNET_MessageHeader);
+
+  to_radiotap = to_start + sizeof (struct GNUNET_MessageHeader);
+  memset (to_radiotap, 0, sizeof (struct Radiotap_rx));
+  write_pout->size += sizeof (struct Radiotap_rx);
+
+  to_data = to_radiotap + sizeof (struct Radiotap_rx);
+  memcpy (to_data,
+          ((char *) hdr) + sizeof (struct Radiotap_Send) +
+          sizeof (struct GNUNET_MessageHeader),
+          ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
+          sizeof (struct GNUNET_MessageHeader));
+  write_pout->size +=
+      ntohs (hdr->size) - sizeof (struct Radiotap_Send) -
+      sizeof (struct GNUNET_MessageHeader);
+}
+
+static void
+file_in_send (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
+{
+  struct sendbuf *write_std = cls;
+  uint16_t sendsize;
+
+  sendsize = ntohs (hdr->size);
+
+  if (GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA != ntohs (hdr->type))
+  {
+    fprintf (stderr, "Function file_in_send: wrong packet type\n");
+    exit (1);
+  }
+  if ((sendsize + write_std->size) > MAXLINE * 2)
+  {
+    fprintf (stderr, "Function file_in_send: Packet too big for buffer\n");
+    exit (1);
+  }
+
+  memcpy (write_std->buf + write_std->size, hdr, sendsize);
+  write_std->size += sendsize;
+}
+
+int closeprog;
+
+
+int
+testmode (int argc, char *argv[])
+{
+  struct stat st;
+  int erg;
+
+  FILE *fpin = NULL;
+  FILE *fpout = NULL;
+
+  int fdpin;
+  int fdpout;
+
+  //make the fifos if needed
+  if (0 != stat (FIFO_FILE1, &st))
+  {
+    if (0 == stat (FIFO_FILE2, &st))
+    {
+      fprintf (stderr, "FIFO_FILE2 exists, but FIFO_FILE1 not\n");
+      exit (1);
+    }
+
+    umask (0);
+    //unlink(FIFO_FILE1);
+    //unlink(FIFO_FILE2);
+    // FIXME: use mkfifo!
+    erg = mkfifo (FIFO_FILE1, 0666);
+    if (0 != erg)
+    {
+      fprintf (stderr, "Error at mkfifo1: %s\n", strerror (errno));
+      //exit(1);
+    }
+    erg = mkfifo (FIFO_FILE2, 0666);
+    if (0 != erg)
+    {
+      fprintf (stderr, "Error at mkfifo2: %s\n", strerror (errno));
+      //exit(1);
+    }
+
+  }
+  else
+  {
+
+    if (0 != stat (FIFO_FILE2, &st))
+    {
+      fprintf (stderr, "FIFO_FILE1 exists, but FIFO_FILE2 not\n");
+      exit (1);
+    }
+
+  }
+
+  if (strstr (argv[1], "1"))
+  {
+    //fprintf(stderr, "First\n");
+    first = 1;
+    fpin = fopen (FIFO_FILE1, "r");
+    if (NULL == fpin)
+    {
+      fprintf (stderr, "fopen of read FIFO_FILE1\n");
+      goto end;
+    }
+    fpout = fopen (FIFO_FILE2, "w");
+    if (NULL == fpout)
+    {
+      fprintf (stderr, "fopen of write FIFO_FILE2\n");
+      goto end;
+    }
+
+  }
+  else
+  {
+    first = 0;
+    //fprintf(stderr, "Second\n");
+    fpout = fopen (FIFO_FILE1, "w");
+    if (NULL == fpout)
+    {
+      fprintf (stderr, "fopen of write FIFO_FILE1\n");
+      goto end;
+    }
+    fpin = fopen (FIFO_FILE2, "r");
+    if (NULL == fpin)
+    {
+      fprintf (stderr, "fopen of read FIFO_FILE2\n");
+      goto end;
+    }
+
+  }
+
+  fdpin = fileno (fpin);
+  GNUNET_assert (fpin >= 0);
+
+  if (fdpin >= FD_SETSIZE)
+  {
+    fprintf (stderr, "File fdpin number too large (%d > %u)\n", fdpin,
+             (unsigned int) FD_SETSIZE);
+    goto end;
+  }
+
+  fdpout = fileno (fpout);
+  GNUNET_assert (fdpout >= 0);
+
+  if (fdpout >= FD_SETSIZE)
+  {
+    fprintf (stderr, "File fdpout number too large (%d > %u)\n", fdpout,
+             (unsigned int) FD_SETSIZE);
+    goto end;
+
+  }
+
+  signal (SIGINT, &sigfunc);
+  signal (SIGTERM, &sigfunc);
+
+  char readbuf[MAXLINE];
+  int readsize = 0;
+  struct sendbuf write_std;
+
+  write_std.size = 0;
+  write_std.pos = 0;
+
+  struct sendbuf write_pout;
+
+  write_pout.size = 0;
+  write_pout.pos = 0;
+
+  int ret = 0;
+  int maxfd = 0;
+
+  fd_set rfds;
+  fd_set wfds;
+  struct timeval tv;
+  int retval;
+
+  struct GNUNET_SERVER_MessageStreamTokenizer *stdin_mst;
+  struct GNUNET_SERVER_MessageStreamTokenizer *file_in_mst;
+
+  stdin_mst = GNUNET_SERVER_mst_create (&stdin_send, &write_pout);
+  file_in_mst = GNUNET_SERVER_mst_create (&file_in_send, &write_std);
+
+  //send mac first
+
+  struct MacAddress macaddr;
+
+  //Send random mac address
+  macaddr.mac[0] = 0x13;
+  macaddr.mac[1] = 0x22;
+  macaddr.mac[2] = 0x33;
+  macaddr.mac[3] = 0x44;
+  macaddr.mac[4] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 256);
+  macaddr.mac[5] = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, 256);
+
+  write_std.size = send_mac_to_plugin (write_std.buf, macaddr.mac);
+
+  while (0 == closeprog)
+  {
+
+    maxfd = 0;
+
+    //set timeout
+    tv.tv_sec = 5;
+    tv.tv_usec = 0;
+
+    FD_ZERO (&rfds);
+    // if output queue is empty
+    if (0 == write_pout.size)
+    {
+      FD_SET (STDIN_FILENO, &rfds);
+
+    }
+    if (0 == write_std.size)
+    {
+      FD_SET (fdpin, &rfds);
+      maxfd = fdpin;
+    }
+    FD_ZERO (&wfds);
+    // if there is something to write
+    if (0 < write_std.size)
+    {
+      FD_SET (STDOUT_FILENO, &wfds);
+      maxfd = MAX (maxfd, STDOUT_FILENO);
+    }
+
+    if (0 < write_pout.size)
+    {
+      FD_SET (fdpout, &wfds);
+      maxfd = MAX (maxfd, fdpout);
+    }
+
+    retval = select (maxfd + 1, &rfds, &wfds, NULL, &tv);
+
+    if (-1 == retval && EINTR == errno)
+    {
+      continue;
+    }
+    if (0 > retval)
+    {
+      fprintf (stderr, "select failed: %s\n", strerror (errno));
+      closeprog = 1;
+      break;
+    }
+
+    if (FD_ISSET (STDOUT_FILENO, &wfds))
+    {
+      ret =
+          write (STDOUT_FILENO, write_std.buf + write_std.pos,
+                 write_std.size - write_std.pos);
+      if (0 > ret)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Write ERROR to STDOUT\n");
+        break;
+      }
+      else
+      {
+        write_std.pos += ret;
+        // check if finished
+        if (write_std.pos == write_std.size)
+        {
+          write_std.pos = 0;
+          write_std.size = 0;
+        }
+      }
+    }
+
+    if (FD_ISSET (fdpout, &wfds))
+    {
+      ret =
+          write (fdpout, write_pout.buf + write_pout.pos,
+                 write_pout.size - write_pout.pos);
+
+      if (0 > ret)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Write ERROR to fdpout\n");
+      }
+      else
+      {
+        write_pout.pos += ret;
+        // check if finished
+        if (write_pout.pos == write_pout.size)
+        {
+          write_pout.pos = 0;
+          write_pout.size = 0;
+        }
+      }
+    }
+
+    if (FD_ISSET (STDIN_FILENO, &rfds))
+    {
+      readsize = read (STDIN_FILENO, readbuf, sizeof (readbuf));
+
+      if (0 > readsize)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Read ERROR to STDIN_FILENO\n");
+      }
+      else if (0 < readsize)
+      {
+        GNUNET_SERVER_mst_receive (stdin_mst, NULL, readbuf, readsize,
+                                   GNUNET_NO, GNUNET_NO);
+
+      }
+      else
+      {
+        //eof
+        closeprog = 1;
+      }
+    }
+
+    if (FD_ISSET (fdpin, &rfds))
+    {
+      readsize = read (fdpin, readbuf, sizeof (readbuf));
+
+      if (0 > readsize)
+      {
+        closeprog = 1;
+        fprintf (stderr, "Read ERROR to fdpin: %s\n", strerror (errno));
+        break;
+      }
+      else if (0 < readsize)
+      {
+        GNUNET_SERVER_mst_receive (file_in_mst, NULL, readbuf, readsize,
+                                   GNUNET_NO, GNUNET_NO);
+
+      }
+      else
+      {
+        //eof
+        closeprog = 1;
+      }
+    }
+
+  }
+
+  //clean up
+
+  GNUNET_SERVER_mst_destroy (stdin_mst);
+  GNUNET_SERVER_mst_destroy (file_in_mst);
+
+end:
+  if (fpout != NULL)
+    fclose (fpout);
+  if (fpin != NULL)
+    fclose (fpin);
+
+  if (1 == first)
+  {
+    (void) unlink (FIFO_FILE1);
+    (void) unlink (FIFO_FILE2);
+  }
+
+  return (0);
+}
+
+int
+main (int argc, char *argv[])
+{
+  if (2 != argc)
+  {
+    fprintf (stderr,
+             "This program must be started with the operating mode as argument.\n");
+    fprintf (stderr,
+             "Usage: options\n" "options:\n" "1 = first loopback file\n"
+             "2 = second loopback file\n" "\n");
+    return 1;
+  }
+  if (strstr (argv[1], "1") || strstr (argv[1], "2"))
+    return testmode (argc, argv);
+  return 1;
+}