X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=ip%2Fiptunnel.c;fp=ip%2Fiptunnel.c;h=0000000000000000000000000000000000000000;hp=2da3df17a269455cfe96091642ccee9d47886519;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994

diff --git a/ip/iptunnel.c b/ip/iptunnel.c
deleted file mode 100644
index 2da3df1..0000000
--- a/ip/iptunnel.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- * iptunnel.c	       "ip tunnel"
- *
- *		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.
- *
- * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- *
- * Changes:
- *
- * Rani Assaf <rani@magic.metawire.com> 980929:	resolve addresses
- * Rani Assaf <rani@magic.metawire.com> 980930:	do not allow key for ipip/sit
- * Phil Karn <karn@ka9q.ampr.org>	990408:	"pmtudisc" flag
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/ioctl.h>
-#include <linux/if.h>
-#include <linux/if_arp.h>
-#include <linux/ip.h>
-
-#ifndef __constant_htons
-#define __constant_htons(x)  htons(x)
-#endif
-
-#include <linux/if_tunnel.h>
-
-#include "rt_names.h"
-#include "utils.h"
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
-{
-	fprintf(stderr, "Usage: ip tunnel { add | change | del | show } [ NAME ]\n");
-	fprintf(stderr, "          [ mode { ipip | gre | sit } ] [ remote ADDR ] [ local ADDR ]\n");
-	fprintf(stderr, "          [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
-	fprintf(stderr, "          [ ttl TTL ] [ tos TOS ] [ [no]pmtudisc ] [ dev PHYS_DEV ]\n");
-	fprintf(stderr, "\n");
-	fprintf(stderr, "Where: NAME := STRING\n");
-	fprintf(stderr, "       ADDR := { IP_ADDRESS | any }\n");
-	fprintf(stderr, "       TOS  := { NUMBER | inherit }\n");
-	fprintf(stderr, "       TTL  := { 1..255 | inherit }\n");
-	fprintf(stderr, "       KEY  := { DOTTED_QUAD | NUMBER }\n");
-	exit(-1);
-}
-
-static int do_ioctl_get_ifindex(const char *dev)
-{
-	struct ifreq ifr;
-	int fd;
-	int err;
-
-	strncpy(ifr.ifr_name, dev, IFNAMSIZ);
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, SIOCGIFINDEX, &ifr);
-	if (err) {
-		perror("ioctl");
-		return 0;
-	}
-	close(fd);
-	return ifr.ifr_ifindex;
-}
-
-static int do_ioctl_get_iftype(const char *dev)
-{
-	struct ifreq ifr;
-	int fd;
-	int err;
-
-	strncpy(ifr.ifr_name, dev, IFNAMSIZ);
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, SIOCGIFHWADDR, &ifr);
-	if (err) {
-		perror("ioctl");
-		return -1;
-	}
-	close(fd);
-	return ifr.ifr_addr.sa_family;
-}
-
-
-static char * do_ioctl_get_ifname(int idx)
-{
-	static struct ifreq ifr;
-	int fd;
-	int err;
-
-	ifr.ifr_ifindex = idx;
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, SIOCGIFNAME, &ifr);
-	if (err) {
-		perror("ioctl");
-		return NULL;
-	}
-	close(fd);
-	return ifr.ifr_name;
-}
-
-
-static int do_get_ioctl(const char *basedev, struct ip_tunnel_parm *p)
-{
-	struct ifreq ifr;
-	int fd;
-	int err;
-
-	strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
-	ifr.ifr_ifru.ifru_data = (void*)p;
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, SIOCGETTUNNEL, &ifr);
-	if (err)
-		perror("ioctl");
-	close(fd);
-	return err;
-}
-
-static int do_add_ioctl(int cmd, const char *basedev, struct ip_tunnel_parm *p)
-{
-	struct ifreq ifr;
-	int fd;
-	int err;
-
-	if (cmd == SIOCCHGTUNNEL && p->name[0])
-		strncpy(ifr.ifr_name, p->name, IFNAMSIZ);
-	else
-		strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
-	ifr.ifr_ifru.ifru_data = (void*)p;
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, cmd, &ifr);
-	if (err)
-		perror("ioctl");
-	close(fd);
-	return err;
-}
-
-static int do_del_ioctl(const char *basedev, struct ip_tunnel_parm *p)
-{
-	struct ifreq ifr;
-	int fd;
-	int err;
-
-	if (p->name[0])
-		strncpy(ifr.ifr_name, p->name, IFNAMSIZ);
-	else
-		strncpy(ifr.ifr_name, basedev, IFNAMSIZ);
-	ifr.ifr_ifru.ifru_data = (void*)p;
-	fd = socket(AF_INET, SOCK_DGRAM, 0);
-	err = ioctl(fd, SIOCDELTUNNEL, &ifr);
-	if (err)
-		perror("ioctl");
-	close(fd);
-	return err;
-}
-
-static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
-{
-	int count = 0;
-	char medium[IFNAMSIZ];
-
-	memset(p, 0, sizeof(*p));
-	memset(&medium, 0, sizeof(medium));
-
-	p->iph.version = 4;
-	p->iph.ihl = 5;
-#ifndef IP_DF
-#define IP_DF		0x4000		/* Flag: "Don't Fragment"	*/
-#endif
-	p->iph.frag_off = htons(IP_DF);
-
-	while (argc > 0) {
-		if (strcmp(*argv, "mode") == 0) {
-			NEXT_ARG();
-			if (strcmp(*argv, "ipip") == 0 ||
-			    strcmp(*argv, "ip/ip") == 0) {
-				if (p->iph.protocol && p->iph.protocol != IPPROTO_IPIP) {
-					fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
-					exit(-1);
-				}
-				p->iph.protocol = IPPROTO_IPIP;
-			} else if (strcmp(*argv, "gre") == 0 ||
-				   strcmp(*argv, "gre/ip") == 0) {
-				if (p->iph.protocol && p->iph.protocol != IPPROTO_GRE) {
-					fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
-					exit(-1);
-				}
-				p->iph.protocol = IPPROTO_GRE;
-			} else if (strcmp(*argv, "sit") == 0 ||
-				   strcmp(*argv, "ipv6/ip") == 0) {
-				if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) {
-					fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
-					exit(-1);
-				}
-				p->iph.protocol = IPPROTO_IPV6;
-			} else {
-				fprintf(stderr,"Cannot guess tunnel mode.\n");
-				exit(-1);
-			}
-		} else if (strcmp(*argv, "key") == 0) {
-			unsigned uval;
-			NEXT_ARG();
-			p->i_flags |= GRE_KEY;
-			p->o_flags |= GRE_KEY;
-			if (strchr(*argv, '.'))
-				p->i_key = p->o_key = get_addr32(*argv);
-			else {
-				if (get_unsigned(&uval, *argv, 0)<0) {
-					fprintf(stderr, "invalid value of \"key\"\n");
-					exit(-1);
-				}
-				p->i_key = p->o_key = htonl(uval);
-			}
-		} else if (strcmp(*argv, "ikey") == 0) {
-			unsigned uval;
-			NEXT_ARG();
-			p->i_flags |= GRE_KEY;
-			if (strchr(*argv, '.'))
-				p->o_key = get_addr32(*argv);
-			else {
-				if (get_unsigned(&uval, *argv, 0)<0) {
-					fprintf(stderr, "invalid value of \"ikey\"\n");
-					exit(-1);
-				}
-				p->i_key = htonl(uval);
-			}
-		} else if (strcmp(*argv, "okey") == 0) {
-			unsigned uval;
-			NEXT_ARG();
-			p->o_flags |= GRE_KEY;
-			if (strchr(*argv, '.'))
-				p->o_key = get_addr32(*argv);
-			else {
-				if (get_unsigned(&uval, *argv, 0)<0) {
-					fprintf(stderr, "invalid value of \"okey\"\n");
-					exit(-1);
-				}
-				p->o_key = htonl(uval);
-			}
-		} else if (strcmp(*argv, "seq") == 0) {
-			p->i_flags |= GRE_SEQ;
-			p->o_flags |= GRE_SEQ;
-		} else if (strcmp(*argv, "iseq") == 0) {
-			p->i_flags |= GRE_SEQ;
-		} else if (strcmp(*argv, "oseq") == 0) {
-			p->o_flags |= GRE_SEQ;
-		} else if (strcmp(*argv, "csum") == 0) {
-			p->i_flags |= GRE_CSUM;
-			p->o_flags |= GRE_CSUM;
-		} else if (strcmp(*argv, "icsum") == 0) {
-			p->i_flags |= GRE_CSUM;
-		} else if (strcmp(*argv, "ocsum") == 0) {
-			p->o_flags |= GRE_CSUM;
-		} else if (strcmp(*argv, "nopmtudisc") == 0) {
-			p->iph.frag_off = 0;
-		} else if (strcmp(*argv, "pmtudisc") == 0) {
-			p->iph.frag_off = htons(IP_DF);
-		} else if (strcmp(*argv, "remote") == 0) {
-			NEXT_ARG();
-			if (strcmp(*argv, "any"))
-				p->iph.daddr = get_addr32(*argv);
-		} else if (strcmp(*argv, "local") == 0) {
-			NEXT_ARG();
-			if (strcmp(*argv, "any"))
-				p->iph.saddr = get_addr32(*argv);
-		} else if (strcmp(*argv, "dev") == 0) {
-			NEXT_ARG();
-			strncpy(medium, *argv, IFNAMSIZ-1);
-		} else if (strcmp(*argv, "ttl") == 0) {
-			unsigned uval;
-			NEXT_ARG();
-			if (strcmp(*argv, "inherit") != 0) {
-				if (get_unsigned(&uval, *argv, 0))
-					invarg("invalid TTL\n", *argv);
-				if (uval > 255)
-					invarg("TTL must be <=255\n", *argv);
-				p->iph.ttl = uval;
-			}
-		} else if (strcmp(*argv, "tos") == 0 ||
-			   matches(*argv, "dsfield") == 0) {
-			__u32 uval;
-			NEXT_ARG();
-			if (strcmp(*argv, "inherit") != 0) {
-				if (rtnl_dsfield_a2n(&uval, *argv))
-					invarg("bad TOS value", *argv);
-				p->iph.tos = uval;
-			} else
-				p->iph.tos = 1;
-		} else {
-			if (strcmp(*argv, "name") == 0) {
-				NEXT_ARG();
-			}
-			if (matches(*argv, "help") == 0)
-				usage();
-			if (p->name[0])
-				duparg2("name", *argv);
-			strncpy(p->name, *argv, IFNAMSIZ);
-			if (cmd == SIOCCHGTUNNEL && count == 0) {
-				struct ip_tunnel_parm old_p;
-				memset(&old_p, 0, sizeof(old_p));
-				if (do_get_ioctl(*argv, &old_p))
-					return -1;
-				*p = old_p;
-			}
-		}
-		count++;
-		argc--; argv++;
-	}
-
-
-	if (p->iph.protocol == 0) {
-		if (memcmp(p->name, "gre", 3) == 0)
-			p->iph.protocol = IPPROTO_GRE;
-		else if (memcmp(p->name, "ipip", 4) == 0)
-			p->iph.protocol = IPPROTO_IPIP;
-		else if (memcmp(p->name, "sit", 3) == 0)
-			p->iph.protocol = IPPROTO_IPV6;
-	}
-
-	if (p->iph.protocol == IPPROTO_IPIP || p->iph.protocol == IPPROTO_IPV6) {
-		if ((p->i_flags & GRE_KEY) || (p->o_flags & GRE_KEY)) {
-			fprintf(stderr, "Keys are not allowed with ipip and sit.\n");
-			return -1;
-		}
-	}
-
-	if (medium[0]) {
-		p->link = do_ioctl_get_ifindex(medium);
-		if (p->link == 0)
-			return -1;
-	}
-
-	if (p->i_key == 0 && IN_MULTICAST(ntohl(p->iph.daddr))) {
-		p->i_key = p->iph.daddr;
-		p->i_flags |= GRE_KEY;
-	}
-	if (p->o_key == 0 && IN_MULTICAST(ntohl(p->iph.daddr))) {
-		p->o_key = p->iph.daddr;
-		p->o_flags |= GRE_KEY;
-	}
-	if (IN_MULTICAST(ntohl(p->iph.daddr)) && !p->iph.saddr) {
-		fprintf(stderr, "Broadcast tunnel requires a source address.\n");
-		return -1;
-	}
-	return 0;
-}
-
-
-static int do_add(int cmd, int argc, char **argv)
-{
-	struct ip_tunnel_parm p;
-
-	if (parse_args(argc, argv, cmd, &p) < 0)
-		return -1;
-
-	if (p.iph.ttl && p.iph.frag_off == 0) {
-		fprintf(stderr, "ttl != 0 and noptmudisc are incompatible\n");
-		return -1;
-	}
-
-	switch (p.iph.protocol) {
-	case IPPROTO_IPIP:
-		return do_add_ioctl(cmd, "tunl0", &p);
-	case IPPROTO_GRE:
-		return do_add_ioctl(cmd, "gre0", &p);
-	case IPPROTO_IPV6:
-		return do_add_ioctl(cmd, "sit0", &p);
-	default:	
-		fprintf(stderr, "cannot determine tunnel mode (ipip, gre or sit)\n");
-		return -1;
-	}
-	return -1;
-}
-
-int do_del(int argc, char **argv)
-{
-	struct ip_tunnel_parm p;
-
-	if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
-		return -1;
-
-	switch (p.iph.protocol) {
-	case IPPROTO_IPIP:
-		return do_del_ioctl("tunl0", &p);
-	case IPPROTO_GRE:
-		return do_del_ioctl("gre0", &p);
-	case IPPROTO_IPV6:
-		return do_del_ioctl("sit0", &p);
-	default:	
-		return do_del_ioctl(p.name, &p);
-	}
-	return -1;
-}
-
-void print_tunnel(struct ip_tunnel_parm *p)
-{
-	char s1[1024];
-	char s2[1024];
-	char s3[64];
-	char s4[64];
-
-	inet_ntop(AF_INET, &p->i_key, s3, sizeof(s3));
-	inet_ntop(AF_INET, &p->o_key, s4, sizeof(s4));
-
-	/* Do not use format_host() for local addr,
-	 * symbolic name will not be useful.
-	 */
-	printf("%s: %s/ip  remote %s  local %s ",
-	       p->name,
-	       p->iph.protocol == IPPROTO_IPIP ? "ip" :
-	       (p->iph.protocol == IPPROTO_GRE ? "gre" :
-		(p->iph.protocol == IPPROTO_IPV6 ? "ipv6" : "unknown")),
-	       p->iph.daddr ? format_host(AF_INET, 4, &p->iph.daddr, s1, sizeof(s1))  : "any",
-	       p->iph.saddr ? rt_addr_n2a(AF_INET, 4, &p->iph.saddr, s2, sizeof(s2)) : "any");
-
-	if (p->link) {
-		char *n = do_ioctl_get_ifname(p->link);
-		if (n)
-			printf(" dev %s ", n);
-	}
-
-	if (p->iph.ttl)
-		printf(" ttl %d ", p->iph.ttl);
-	else
-		printf(" ttl inherit ");
-	
-	if (p->iph.tos) {
-		SPRINT_BUF(b1);
-		printf(" tos");
-		if (p->iph.tos&1)
-			printf(" inherit");
-		if (p->iph.tos&~1)
-			printf("%c%s ", p->iph.tos&1 ? '/' : ' ',
-			       rtnl_dsfield_n2a(p->iph.tos&~1, b1, sizeof(b1)));
-	}
-
-	if (!(p->iph.frag_off&htons(IP_DF)))
-		printf(" nopmtudisc");
-
-	if ((p->i_flags&GRE_KEY) && (p->o_flags&GRE_KEY) && p->o_key == p->i_key)
-		printf(" key %s", s3);
-	else if ((p->i_flags|p->o_flags)&GRE_KEY) {
-		if (p->i_flags&GRE_KEY)
-			printf(" ikey %s ", s3);
-		if (p->o_flags&GRE_KEY)
-			printf(" okey %s ", s4);
-	}
-
-	if (p->i_flags&GRE_SEQ)
-		printf("%s  Drop packets out of sequence.\n", _SL_);
-	if (p->i_flags&GRE_CSUM)
-		printf("%s  Checksum in received packet is required.", _SL_);
-	if (p->o_flags&GRE_SEQ)
-		printf("%s  Sequence packets on output.", _SL_);
-	if (p->o_flags&GRE_CSUM)
-		printf("%s  Checksum output packets.", _SL_);
-}
-
-static int do_tunnels_list(struct ip_tunnel_parm *p)
-{
-	char name[IFNAMSIZ];
-	unsigned long  rx_bytes, rx_packets, rx_errs, rx_drops,
-	rx_fifo, rx_frame,
-	tx_bytes, tx_packets, tx_errs, tx_drops,
-	tx_fifo, tx_colls, tx_carrier, rx_multi;
-	int type;
-	struct ip_tunnel_parm p1;
-
-	char buf[512];
-	FILE *fp = fopen("/proc/net/dev", "r");
-	if (fp == NULL) {
-		perror("fopen");
-		return -1;
-	}
-
-	fgets(buf, sizeof(buf), fp);
-	fgets(buf, sizeof(buf), fp);
-
-	while (fgets(buf, sizeof(buf), fp) != NULL) {
-		char *ptr;
-		buf[sizeof(buf) - 1] = 0;
-		if ((ptr = strchr(buf, ':')) == NULL ||
-		    (*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
-			fprintf(stderr, "Wrong format of /proc/net/dev. Sorry.\n");
-			return -1;
-		}
-		if (sscanf(ptr, "%ld%ld%ld%ld%ld%ld%ld%*d%ld%ld%ld%ld%ld%ld%ld",
-			   &rx_bytes, &rx_packets, &rx_errs, &rx_drops,
-			   &rx_fifo, &rx_frame, &rx_multi,
-			   &tx_bytes, &tx_packets, &tx_errs, &tx_drops,
-			   &tx_fifo, &tx_colls, &tx_carrier) != 14)
-			continue;
-		if (p->name[0] && strcmp(p->name, name))
-			continue;
-		type = do_ioctl_get_iftype(name);
-		if (type == -1) {
-			fprintf(stderr, "Failed to get type of [%s]\n", name);
-			continue;
-		}
-		if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
-			continue;
-		memset(&p1, 0, sizeof(p1));
-		if (do_get_ioctl(name, &p1))
-			continue;
-		if ((p->link && p1.link != p->link) ||
-		    (p->name[0] && strcmp(p1.name, p->name)) ||
-		    (p->iph.daddr && p1.iph.daddr != p->iph.daddr) ||
-		    (p->iph.saddr && p1.iph.saddr != p->iph.saddr) ||
-		    (p->i_key && p1.i_key != p->i_key))
-			continue;
-		print_tunnel(&p1);
-		if (show_stats) {
-			printf("%s", _SL_);
-			printf("RX: Packets    Bytes        Errors CsumErrs OutOfSeq Mcasts%s", _SL_);
-			printf("    %-10ld %-12ld %-6ld %-8ld %-8ld %-8ld%s",
-			       rx_packets, rx_bytes, rx_errs, rx_frame, rx_fifo, rx_multi, _SL_);
-			printf("TX: Packets    Bytes        Errors DeadLoop NoRoute  NoBufs%s", _SL_);
-			printf("    %-10ld %-12ld %-6ld %-8ld %-8ld %-6ld",
-			       tx_packets, tx_bytes, tx_errs, tx_colls, tx_carrier, tx_drops);
-		}
-		printf("\n");
-	}
-	return 0;
-}
-
-static int do_show(int argc, char **argv)
-{
-	int err;
-	struct ip_tunnel_parm p;
-
-	if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
-		return -1;
-
-	switch (p.iph.protocol) {
-	case IPPROTO_IPIP:	
-		err = do_get_ioctl(p.name[0] ? p.name : "tunl0", &p);
-		break;
-	case IPPROTO_GRE:
-		err = do_get_ioctl(p.name[0] ? p.name : "gre0", &p);
-		break;
-	case IPPROTO_IPV6:
-		err = do_get_ioctl(p.name[0] ? p.name : "sit0", &p);
-		break;
-	default:
-		do_tunnels_list(&p);
-		return 0;
-	}
-	if (err)
-		return -1;
-
-	print_tunnel(&p);
-	printf("\n");
-	return 0;
-}
-
-int do_iptunnel(int argc, char **argv)
-{
-	if (argc > 0) {
-		if (matches(*argv, "add") == 0)
-			return do_add(SIOCADDTUNNEL, argc-1, argv+1);
-		if (matches(*argv, "change") == 0)
-			return do_add(SIOCCHGTUNNEL, argc-1, argv+1);
-		if (matches(*argv, "del") == 0)
-			return do_del(argc-1, argv+1);
-		if (matches(*argv, "show") == 0 ||
-		    matches(*argv, "lst") == 0 ||
-		    matches(*argv, "list") == 0)
-			return do_show(argc-1, argv+1);
-		if (matches(*argv, "help") == 0)
-			usage();
-	} else
-		return do_show(0, NULL);
-
-	fprintf(stderr, "Command \"%s\" is unknown, try \"ip tunnel help\".\n", *argv);
-	exit(-1);
-}