Checkign in new iproute2

[iproute2.git] / ip / tunnel.c

diff --git a/ip/tunnel.c b/ip/tunnel.c
new file mode 100644 (file)
index 0000000..104340d
--- /dev/null
+++ b/ip/tunnel.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C)2006 USAGI/WIDE Project
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+/*
+ * split from ip_tunnel.c
+ */
+/*
+ * Author:
+ *     Masahide NAKAMURA @USAGI
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <linux/if.h>
+#include <linux/ip.h>
+#include <linux/if_tunnel.h>
+
+#include "utils.h"
+#include "tunnel.h"
+
+const char *tnl_strproto(__u8 proto)
+{
+       static char buf[16];
+
+       switch (proto) {
+       case IPPROTO_IPIP:
+               strcpy(buf, "ip");
+               break;
+       case IPPROTO_GRE:
+               strcpy(buf, "gre");
+               break;
+       case IPPROTO_IPV6:
+               strcpy(buf, "ipv6");
+               break;
+       case 0:
+               strcpy(buf, "any");
+               break;
+       default:
+               strcpy(buf, "unknown");
+               break;
+       }
+
+       return buf;
+}
+
+int tnl_ioctl_get_ifindex(const char *dev)
+{
+       struct ifreq ifr;
+       int fd;
+       int err;
+
+       strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, SIOCGIFINDEX, &ifr);
+       if (err) {
+               perror("ioctl");
+               return 0;
+       }
+       close(fd);
+       return ifr.ifr_ifindex;
+}
+
+int tnl_ioctl_get_iftype(const char *dev)
+{
+       struct ifreq ifr;
+       int fd;
+       int err;
+
+       strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, SIOCGIFHWADDR, &ifr);
+       if (err) {
+               perror("ioctl");
+               return -1;
+       }
+       close(fd);
+       return ifr.ifr_addr.sa_family;
+}
+
+
+char * tnl_ioctl_get_ifname(int idx)
+{
+       static struct ifreq ifr;
+       int fd;
+       int err;
+
+       ifr.ifr_ifindex = idx;
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, SIOCGIFNAME, &ifr);
+       if (err) {
+               perror("ioctl");
+               return NULL;
+       }
+       close(fd);
+       return ifr.ifr_name;
+}
+
+int tnl_get_ioctl(const char *basedev, void *p)
+{
+       struct ifreq ifr;
+       int fd;
+       int err;
+
+       strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
+       ifr.ifr_ifru.ifru_data = (void*)p;
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, SIOCGETTUNNEL, &ifr);
+       if (err)
+               perror("ioctl");
+       close(fd);
+       return err;
+}
+
+int tnl_add_ioctl(int cmd, const char *basedev, const char *name, void *p)
+{
+       struct ifreq ifr;
+       int fd;
+       int err;
+
+       if (cmd == SIOCCHGTUNNEL && name[0])
+               strncpy(ifr.ifr_name, name, IFNAMSIZ);
+       else
+               strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
+       ifr.ifr_ifru.ifru_data = p;
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, cmd, &ifr);
+       if (err)
+               perror("ioctl");
+       close(fd);
+       return err;
+}
+
+int tnl_del_ioctl(const char *basedev, const char *name, void *p)
+{
+       struct ifreq ifr;
+       int fd;
+       int err;
+
+       if (name[0])
+               strncpy(ifr.ifr_name, name, IFNAMSIZ);
+       else
+               strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
+       ifr.ifr_ifru.ifru_data = p;
+       fd = socket(preferred_family, SOCK_DGRAM, 0);
+       err = ioctl(fd, SIOCDELTUNNEL, &ifr);
+       if (err)
+               perror("ioctl");
+       close(fd);
+       return err;
+}