2 * Copyright (C)2006 USAGI/WIDE Project
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * split from ip_tunnel.c
23 * Masahide NAKAMURA @USAGI
30 #include <sys/types.h>
31 #include <sys/socket.h>
32 #include <sys/ioctl.h>
33 #include <netinet/in.h>
36 #include <linux/if_tunnel.h>
41 const char *tnl_strproto(__u8 proto)
59 strcpy(buf, "unknown");
66 int tnl_ioctl_get_ifindex(const char *dev)
72 strncpy(ifr.ifr_name, dev, IFNAMSIZ);
73 fd = socket(preferred_family, SOCK_DGRAM, 0);
74 err = ioctl(fd, SIOCGIFINDEX, &ifr);
80 return ifr.ifr_ifindex;
83 int tnl_ioctl_get_iftype(const char *dev)
89 strncpy(ifr.ifr_name, dev, IFNAMSIZ);
90 fd = socket(preferred_family, SOCK_DGRAM, 0);
91 err = ioctl(fd, SIOCGIFHWADDR, &ifr);
97 return ifr.ifr_addr.sa_family;
101 char * tnl_ioctl_get_ifname(int idx)
103 static struct ifreq ifr;
107 ifr.ifr_ifindex = idx;
108 fd = socket(preferred_family, SOCK_DGRAM, 0);
109 err = ioctl(fd, SIOCGIFNAME, &ifr);
118 int tnl_get_ioctl(const char *basedev, void *p)
124 strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
125 ifr.ifr_ifru.ifru_data = (void*)p;
126 fd = socket(preferred_family, SOCK_DGRAM, 0);
127 err = ioctl(fd, SIOCGETTUNNEL, &ifr);
134 int tnl_add_ioctl(int cmd, const char *basedev, const char *name, void *p)
140 if (cmd == SIOCCHGTUNNEL && name[0])
141 strncpy(ifr.ifr_name, name, IFNAMSIZ);
143 strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
144 ifr.ifr_ifru.ifru_data = p;
145 fd = socket(preferred_family, SOCK_DGRAM, 0);
146 err = ioctl(fd, cmd, &ifr);
153 int tnl_del_ioctl(const char *basedev, const char *name, void *p)
160 strncpy(ifr.ifr_name, name, IFNAMSIZ);
162 strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
163 ifr.ifr_ifru.ifru_data = p;
164 fd = socket(preferred_family, SOCK_DGRAM, 0);
165 err = ioctl(fd, SIOCDELTUNNEL, &ifr);
172 static int tnl_gen_ioctl(int cmd, const char *name, void *p, int skiperr)
178 strncpy(ifr.ifr_name, name, IFNAMSIZ);
179 ifr.ifr_ifru.ifru_data = p;
180 fd = socket(preferred_family, SOCK_DGRAM, 0);
181 err = ioctl(fd, cmd, &ifr);
182 if (err && errno != skiperr)
188 int tnl_prl_ioctl(int cmd, const char *name, void *p)
190 return tnl_gen_ioctl(cmd, name, p, -1);
193 int tnl_6rd_ioctl(int cmd, const char *name, void *p)
195 return tnl_gen_ioctl(cmd, name, p, -1);
198 int tnl_ioctl_get_6rd(const char *name, void *p)
200 return tnl_gen_ioctl(SIOCGET6RD, name, p, EINVAL);