Imported Debian version 1.2.2~svn3653

2008-11-29 00:31:58 -05:00 · 2008-11-29 00:31:58 -05:00 · ce56f3183d
commit ce56f3183d
35 changed files with 12965 additions and 0 deletions
--- a/tuntap_freebsd.c
+++ b/tuntap_freebsd.c
@ -0,0 +1,124 @@
+/*
+ * (C) 2007-08 - Luca Deri <deri@ntop.org>
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not see see <http://www.gnu.org/licenses/>
+ */
+
+#include "n2n.h"
+
+#ifdef __FreeBSD__
+
+void tun_close(tuntap_dev *device);
+
+/* ********************************** */
+
+#define N2N_FREEBSD_TAPDEVICE_SIZE 32
+int tuntap_open(tuntap_dev *device /* ignored */, 
+                char *dev, 
+                char *device_ip, 
+                char *device_mask,
+                const char * device_mac ) {
+  int i;
+  char tap_device[N2N_FREEBSD_TAPDEVICE_SIZE];
+
+  for (i = 0; i < 255; i++) {
+    snprintf(tap_device, sizeof(tap_device), "/dev/tap%d", i);
+
+    device->fd = open(tap_device, O_RDWR);
+    if(device->fd > 0) {
+      traceEvent(TRACE_NORMAL, "Succesfully open %s", tap_device);
+      break;
+    }
+  }
+  
+  if(device->fd < 0) {
+    traceEvent(TRACE_ERROR, "Unable to open tap device");
+    return(-1);
+  } else {
+    char buf[256];
+    FILE *fd;
+
+    device->ip_addr = inet_addr(device_ip);
+
+    if ( device_mac )
+    {
+        /* FIXME - This is not tested. Might be wrong syntax for OS X */
+
+        /* Set the hw address before bringing the if up. */
+        snprintf(buf, sizeof(buf), "ifconfig tap%d ether %s",
+                 i, device_mac);
+        system(buf);
+    }
+
+    snprintf(buf, sizeof(buf), "ifconfig tap%d %s netmask %s mtu 1400 up",
+             i, device_ip, device_mask);
+    system(buf);
+
+    traceEvent(TRACE_NORMAL, "Interface tap%d up and running (%s/%s)",
+               i, device_ip, device_mask);
+
+  /* Read MAC address */
+
+    snprintf(buf, sizeof(buf), "ifconfig tap%d |grep ether|cut -c 8-24", i);
+    /* traceEvent(TRACE_INFO, "%s", buf); */
+
+    fd = popen(buf, "r");
+    if(fd < 0) {
+      tun_close(device);
+      return(-1);
+    } else {
+      int a, b, c, d, e, f;
+
+      buf[0] = 0;
+      fgets(buf, sizeof(buf), fd);
+      pclose(fd);
+      
+      if(buf[0] == '\0') {
+	traceEvent(TRACE_ERROR, "Unable to read tap%d interface MAC address");
+	exit(0);
+      }
+
+      traceEvent(TRACE_NORMAL, "Interface tap%d mac %s", i, buf);
+      if(sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", &a, &b, &c, &d, &e, &f) == 6) {
+	device->mac_addr[0] = a, device->mac_addr[1] = b;
+	device->mac_addr[2] = c, device->mac_addr[3] = d;
+	device->mac_addr[4] = e, device->mac_addr[5] = f;
+      }
+    }
+  }
+
+
+  /* read_mac(dev, device->mac_addr); */
+  return(device->fd);
+}
+
+/* ********************************** */
+
+int tuntap_read(struct tuntap_dev *tuntap, unsigned char *buf, int len) {
+  return(read(tuntap->fd, buf, len));
+}
+
+/* ********************************** */
+
+int tuntap_write(struct tuntap_dev *tuntap, unsigned char *buf, int len) {
+  return(write(tuntap->fd, buf, len));
+}
+
+/* ********************************** */
+
+void tuntap_close(struct tuntap_dev *tuntap) {
+  close(tuntap->fd);
+}
+
+#endif