mirror of
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
synced 2024-11-17 06:53:26 +08:00
14645ec231
This patch improves many error messages as follows: - For incorrect parameters, show the value of the offending parameter, rather than just say that it is incorrect - Rephrased messages for clarity - Rephrased to more `mainstream' english Signed-off-by: Kees van Reeuwijk <reeuwijk@few.vu.nl>
157 lines
3.4 KiB
C
157 lines
3.4 KiB
C
/*
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* Copyright (C)2006 USAGI/WIDE Project
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* split from ip_tunnel.c
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*/
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/*
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* Author:
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* Masahide NAKAMURA @USAGI
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <linux/if.h>
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#include <linux/ip.h>
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#include <linux/if_tunnel.h>
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#include "utils.h"
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#include "tunnel.h"
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const char *tnl_strproto(__u8 proto)
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{
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static char buf[16];
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switch (proto) {
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case IPPROTO_IPIP:
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strcpy(buf, "ip");
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break;
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case IPPROTO_GRE:
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strcpy(buf, "gre");
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break;
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case IPPROTO_IPV6:
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strcpy(buf, "ipv6");
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break;
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case 0:
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strcpy(buf, "any");
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break;
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default:
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strcpy(buf, "unknown");
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break;
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}
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return buf;
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}
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int tnl_get_ioctl(const char *basedev, void *p)
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{
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struct ifreq ifr;
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int fd;
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int err;
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strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
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ifr.ifr_ifru.ifru_data = (void*)p;
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fd = socket(preferred_family, SOCK_DGRAM, 0);
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err = ioctl(fd, SIOCGETTUNNEL, &ifr);
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if (err)
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fprintf(stderr, "get tunnel \"%s\" failed: %s\n", basedev,
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strerror(errno));
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close(fd);
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return err;
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}
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int tnl_add_ioctl(int cmd, const char *basedev, const char *name, void *p)
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{
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struct ifreq ifr;
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int fd;
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int err;
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if (cmd == SIOCCHGTUNNEL && name[0])
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strncpy(ifr.ifr_name, name, IFNAMSIZ);
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else
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strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
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ifr.ifr_ifru.ifru_data = p;
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fd = socket(preferred_family, SOCK_DGRAM, 0);
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err = ioctl(fd, cmd, &ifr);
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if (err)
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fprintf(stderr, "add tunnel \"%s\" failed: %s\n", ifr.ifr_name,
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strerror(errno));
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close(fd);
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return err;
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}
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int tnl_del_ioctl(const char *basedev, const char *name, void *p)
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{
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struct ifreq ifr;
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int fd;
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int err;
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if (name[0])
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strncpy(ifr.ifr_name, name, IFNAMSIZ);
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else
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strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
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ifr.ifr_ifru.ifru_data = p;
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fd = socket(preferred_family, SOCK_DGRAM, 0);
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err = ioctl(fd, SIOCDELTUNNEL, &ifr);
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if (err)
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fprintf(stderr, "delete tunnel \"%s\" failed: %s\n",
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ifr.ifr_name, strerror(errno));
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close(fd);
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return err;
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}
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static int tnl_gen_ioctl(int cmd, const char *name,
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void *p, int skiperr)
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{
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struct ifreq ifr;
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int fd;
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int err;
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strncpy(ifr.ifr_name, name, IFNAMSIZ);
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ifr.ifr_ifru.ifru_data = p;
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fd = socket(preferred_family, SOCK_DGRAM, 0);
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err = ioctl(fd, cmd, &ifr);
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if (err && errno != skiperr)
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fprintf(stderr, "%s: ioctl %x failed: %s\n", name,
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cmd, strerror(errno));
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close(fd);
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return err;
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}
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int tnl_prl_ioctl(int cmd, const char *name, void *p)
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{
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return tnl_gen_ioctl(cmd, name, p, -1);
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}
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int tnl_6rd_ioctl(int cmd, const char *name, void *p)
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{
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return tnl_gen_ioctl(cmd, name, p, -1);
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}
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int tnl_ioctl_get_6rd(const char *name, void *p)
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{
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return tnl_gen_ioctl(SIOCGET6RD, name, p, EINVAL);
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}
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