|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* Copyright (c) 1989 The Regents of the University of California.
|
|
Packit Service |
6f2e62 |
* All rights reserved.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* This code is derived from software contributed to Berkeley by
|
|
Packit Service |
6f2e62 |
* Mike Muuss.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Redistribution and use in source and binary forms, with or without
|
|
Packit Service |
6f2e62 |
* modification, are permitted provided that the following conditions
|
|
Packit Service |
6f2e62 |
* are met:
|
|
Packit Service |
6f2e62 |
* 1. Redistributions of source code must retain the above copyright
|
|
Packit Service |
6f2e62 |
* notice, this list of conditions and the following disclaimer.
|
|
Packit Service |
6f2e62 |
* 2. Redistributions in binary form must reproduce the above copyright
|
|
Packit Service |
6f2e62 |
* notice, this list of conditions and the following disclaimer in the
|
|
Packit Service |
6f2e62 |
* documentation and/or other materials provided with the distribution.
|
|
Packit Service |
6f2e62 |
* 3. Neither the name of the University nor the names of its contributors
|
|
Packit Service |
6f2e62 |
* may be used to endorse or promote products derived from this software
|
|
Packit Service |
6f2e62 |
* without specific prior written permission.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
Packit Service |
6f2e62 |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
Packit Service |
6f2e62 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
Packit Service |
6f2e62 |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
Packit Service |
6f2e62 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
Packit Service |
6f2e62 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
Packit Service |
6f2e62 |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
Packit Service |
6f2e62 |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
Packit Service |
6f2e62 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
Packit Service |
6f2e62 |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
Packit Service |
6f2e62 |
* SUCH DAMAGE.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* P I N G . C
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Using the InterNet Control Message Protocol (ICMP) "ECHO" facility,
|
|
Packit Service |
6f2e62 |
* measure round-trip-delays and packet loss across network paths.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Author -
|
|
Packit Service |
6f2e62 |
* Mike Muuss
|
|
Packit Service |
6f2e62 |
* U. S. Army Ballistic Research Laboratory
|
|
Packit Service |
6f2e62 |
* December, 1983
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Status -
|
|
Packit Service |
6f2e62 |
* Public Domain. Distribution Unlimited.
|
|
Packit Service |
6f2e62 |
* Bugs -
|
|
Packit Service |
6f2e62 |
* More statistics could always be gathered.
|
|
Packit Service |
6f2e62 |
* If kernel does not support non-raw ICMP sockets,
|
|
Packit Service |
6f2e62 |
* this program has to run SUID to ROOT or with
|
|
Packit Service |
6f2e62 |
* net_cap_raw enabled.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#include "ping.h"
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#include <assert.h>
|
|
Packit Service |
6f2e62 |
#include <netinet/ip.h>
|
|
Packit Service |
6f2e62 |
#include <netinet/ip_icmp.h>
|
|
Packit Service |
6f2e62 |
#ifndef WITHOUT_IFADDRS
|
|
Packit Service |
6f2e62 |
#include <ifaddrs.h>
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#ifndef ICMP_FILTER
|
|
Packit Service |
6f2e62 |
#define ICMP_FILTER 1
|
|
Packit Service |
6f2e62 |
struct icmp_filter {
|
|
Packit Service |
6f2e62 |
__u32 data;
|
|
Packit Service |
6f2e62 |
};
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
ping_func_set_st ping4_func_set = {
|
|
Packit Service |
6f2e62 |
.send_probe = ping4_send_probe,
|
|
Packit Service |
6f2e62 |
.receive_error_msg = ping4_receive_error_msg,
|
|
Packit Service |
6f2e62 |
.parse_reply = ping4_parse_reply,
|
|
Packit Service |
6f2e62 |
.install_filter = ping4_install_filter
|
|
Packit Service |
6f2e62 |
};
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#define MAXIPLEN 60
|
|
Packit Service |
6f2e62 |
#define MAXICMPLEN 76
|
|
Packit Service |
6f2e62 |
#define NROUTES 9 /* number of record route slots */
|
|
Packit Service |
6f2e62 |
#define TOS_MAX 255 /* 8-bit TOS field */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static int ts_type;
|
|
Packit Service |
6f2e62 |
static int nroute = 0;
|
|
Packit Service |
6f2e62 |
static __u32 route[10];
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static struct sockaddr_in whereto; /* who to ping */
|
|
Packit Service |
6f2e62 |
static int optlen = 0;
|
|
Packit Service |
6f2e62 |
static int settos = 0; /* Set TOS, Precendence or other QOS options */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static int broadcast_pings = 0;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static void pr_options(unsigned char * cp, int hlen);
|
|
Packit Service |
6f2e62 |
static void pr_iph(struct iphdr *ip);
|
|
Packit Service |
6f2e62 |
static void usage(void) __attribute__((noreturn));
|
|
Packit Service |
6f2e62 |
static unsigned short in_cksum(const unsigned short *addr, int len, unsigned short salt);
|
|
Packit Service |
6f2e62 |
static void pr_icmph(__u8 type, __u8 code, __u32 info, struct icmphdr *icp);
|
|
Packit Service |
6f2e62 |
static int parsetos(char *str);
|
|
Packit Service |
6f2e62 |
static int parseflow(char *str);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static struct {
|
|
Packit Service |
6f2e62 |
struct cmsghdr cm;
|
|
Packit Service |
6f2e62 |
struct in_pktinfo ipi;
|
|
Packit Service |
6f2e62 |
} cmsg = { {sizeof(struct cmsghdr) + sizeof(struct in_pktinfo), SOL_IP, IP_PKTINFO},
|
|
Packit Service |
6f2e62 |
{0, }};
|
|
Packit Service |
6f2e62 |
int cmsg_len;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static struct sockaddr_in source = { .sin_family = AF_INET };
|
|
Packit Service |
6f2e62 |
char *device;
|
|
Packit Service |
6f2e62 |
int pmtudisc = -1;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static void create_socket(socket_st *sock, int family, int socktype, int protocol, int requisite)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
int do_fallback = 0;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
errno = 0;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
assert(sock->fd == -1);
|
|
Packit Service |
6f2e62 |
assert(socktype == SOCK_DGRAM || socktype == SOCK_RAW);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Attempt to create a ping socket if requested. Attempt to create a raw
|
|
Packit Service |
6f2e62 |
* socket otherwise or as a fallback. Well known errno values follow.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* 1) EACCES
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Kernel returns EACCES for all ping socket creation attempts when the
|
|
Packit Service |
6f2e62 |
* user isn't allowed to use ping socket. A range of group ids is
|
|
Packit Service |
6f2e62 |
* configured using the `net.ipv4.ping_group_range` sysctl. Fallback
|
|
Packit Service |
6f2e62 |
* to raw socket is necessary.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Kernel returns EACCES for all raw socket creation attempts when the
|
|
Packit Service |
6f2e62 |
* proces doesn't have the `CAP_NET_RAW` capability.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* 2) EAFNOSUPPORT
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Kernel returns EAFNOSUPPORT for IPv6 ping or raw socket creation
|
|
Packit Service |
6f2e62 |
* attempts when run with IPv6 support disabled (e.g. via `ipv6.disable=1`
|
|
Packit Service |
6f2e62 |
* kernel command-line option.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* https://github.com/iputils/iputils/issues/32
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* OpenVZ 2.6.32-042stab113.11 and possibly other older kernels return
|
|
Packit Service |
6f2e62 |
* EAFNOSUPPORT for all IPv4 ping socket creation attempts due to lack
|
|
Packit Service |
6f2e62 |
* of support in the kernel. Fallback to raw socket is necessary.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* https://github.com/iputils/iputils/issues/54
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* 3) EPROTONOSUPPORT
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* OpenVZ 2.6.32-042stab113.11 and possibly other older kernels return
|
|
Packit Service |
6f2e62 |
* EPROTONOSUPPORT for all IPv6 ping socket creation attempts due to lack
|
|
Packit Service |
6f2e62 |
* of support in the kernel. Fallback to raw socket is necessary.
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* https://github.com/iputils/iputils/issues/54
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
if (socktype == SOCK_DGRAM)
|
|
Packit Service |
6f2e62 |
sock->fd = socket(family, socktype, protocol);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Kernel doesn't support ping sockets. */
|
|
Packit Service |
6f2e62 |
if (sock->fd == -1 && errno == EAFNOSUPPORT && family == AF_INET)
|
|
Packit Service |
6f2e62 |
do_fallback = 1;
|
|
Packit Service |
6f2e62 |
if (sock->fd == -1 && errno == EPROTONOSUPPORT && family == AF_INET6)
|
|
Packit Service |
6f2e62 |
do_fallback = 1;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* User is not allowed to use ping sockets. */
|
|
Packit Service |
6f2e62 |
if (sock->fd == -1 && errno == EACCES)
|
|
Packit Service |
6f2e62 |
do_fallback = 1;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (socktype == SOCK_RAW || do_fallback) {
|
|
Packit Service |
6f2e62 |
socktype = SOCK_RAW;
|
|
Packit Service |
6f2e62 |
sock->fd = socket(family, SOCK_RAW, protocol);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (sock->fd == -1) {
|
|
Packit Service |
6f2e62 |
/* Report error related to disabled IPv6 only when IPv6 also failed or in
|
|
Packit Service |
6f2e62 |
* verbose mode. Report other errors always.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
if ((errno == EAFNOSUPPORT && socktype == AF_INET6) || options & F_VERBOSE || requisite)
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: socket: %s\n", strerror(errno));
|
|
Packit Service |
6f2e62 |
if (requisite)
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
} else
|
|
Packit Service |
6f2e62 |
sock->socktype = socktype;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
static void set_socket_option(socket_st *sock, int level, int optname, const void *optval, socklen_t optlen)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
if (sock->fd == -1)
|
|
Packit Service |
6f2e62 |
return;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, level, optname, optval, optlen) == -1) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: setsockopt: %s\n", strerror(errno));
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
int
|
|
Packit Service |
6f2e62 |
main(int argc, char **argv)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct addrinfo hints = { .ai_family = AF_UNSPEC, .ai_protocol = IPPROTO_UDP, .ai_socktype = SOCK_DGRAM, .ai_flags = getaddrinfo_flags };
|
|
Packit Service |
6f2e62 |
struct addrinfo *result, *ai;
|
|
Packit Service |
6f2e62 |
int status;
|
|
Packit Service |
6f2e62 |
int ch;
|
|
Packit Service |
6f2e62 |
socket_st sock4 = { .fd = -1 };
|
|
Packit Service |
6f2e62 |
socket_st sock6 = { .fd = -1 };
|
|
Packit Service |
6f2e62 |
char *target;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
limit_capabilities();
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#ifdef USE_IDN
|
|
Packit Service |
6f2e62 |
setlocale(LC_ALL, "");
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
if (!strcmp(setlocale(LC_ALL, NULL), "C"))
|
|
Packit Service |
6f2e62 |
hints.ai_flags &= ~ AI_CANONIDN;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Support being called using `ping4` or `ping6` symlinks */
|
|
Packit Service |
6f2e62 |
if (argv[0][strlen(argv[0])-1] == '4')
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET;
|
|
Packit Service |
6f2e62 |
else if (argv[0][strlen(argv[0])-1] == '6')
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET6;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Parse command line options */
|
|
Packit Service |
6f2e62 |
while ((ch = getopt(argc, argv, "h?" "4bRT:" "6F:N:" "aABc:dDfi:I:l:Lm:M:nOp:qQ:rs:S:t:UvVw:W:")) != EOF) {
|
|
Packit Service |
6f2e62 |
switch(ch) {
|
|
Packit Service |
6f2e62 |
/* IPv4 specific options */
|
|
Packit Service |
6f2e62 |
case '4':
|
|
Packit Service |
6f2e62 |
if (hints.ai_family != AF_UNSPEC) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: Only one -4 or -6 option may be specified\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'b':
|
|
Packit Service |
6f2e62 |
broadcast_pings = 1;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'R':
|
|
Packit Service |
6f2e62 |
if (options & F_TIMESTAMP) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "Only one of -T or -R may be used\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
options |= F_RROUTE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'T':
|
|
Packit Service |
6f2e62 |
if (options & F_RROUTE) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "Only one of -T or -R may be used\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
options |= F_TIMESTAMP;
|
|
Packit Service |
6f2e62 |
if (strcmp(optarg, "tsonly") == 0)
|
|
Packit Service |
6f2e62 |
ts_type = IPOPT_TS_TSONLY;
|
|
Packit Service |
6f2e62 |
else if (strcmp(optarg, "tsandaddr") == 0)
|
|
Packit Service |
6f2e62 |
ts_type = IPOPT_TS_TSANDADDR;
|
|
Packit Service |
6f2e62 |
else if (strcmp(optarg, "tsprespec") == 0)
|
|
Packit Service |
6f2e62 |
ts_type = IPOPT_TS_PRESPEC;
|
|
Packit Service |
6f2e62 |
else {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "Invalid timestamp type\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
/* IPv6 specific options */
|
|
Packit Service |
6f2e62 |
case '6':
|
|
Packit Service |
6f2e62 |
if (hints.ai_family != AF_UNSPEC) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: Only one -4 or -6 option may be specified\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET6;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'F':
|
|
Packit Service |
6f2e62 |
flowlabel = parseflow(optarg);
|
|
Packit Service |
6f2e62 |
options |= F_FLOWINFO;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'N':
|
|
Packit Service |
6f2e62 |
if (niquery_option_handler(optarg) < 0) {
|
|
Packit Service |
6f2e62 |
ping6_usage(0);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
hints.ai_socktype = SOCK_RAW;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
/* Common options */
|
|
Packit Service |
6f2e62 |
case 'a':
|
|
Packit Service |
6f2e62 |
options |= F_AUDIBLE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'A':
|
|
Packit Service |
6f2e62 |
options |= F_ADAPTIVE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'B':
|
|
Packit Service |
6f2e62 |
options |= F_STRICTSOURCE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'c':
|
|
Packit Service |
6f2e62 |
npackets = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (npackets <= 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: bad number of packets to transmit.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'd':
|
|
Packit Service |
6f2e62 |
options |= F_SO_DEBUG;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'D':
|
|
Packit Service |
6f2e62 |
options |= F_PTIMEOFDAY;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'i':
|
|
Packit Service |
914d8f |
{
|
|
Packit Service |
914d8f |
double dbl;
|
|
Packit Service |
914d8f |
char *ep;
|
|
Packit Service |
914d8f |
|
|
Packit Service |
914d8f |
errno = 0;
|
|
Packit Service |
914d8f |
#ifdef USE_IDN
|
|
Packit Service |
914d8f |
setlocale(LC_ALL, "C");
|
|
Packit Service |
914d8f |
#endif
|
|
Packit Service |
914d8f |
dbl = strtod(optarg, &ep);
|
|
Packit Service |
914d8f |
#ifdef USE_IDN
|
|
Packit Service |
914d8f |
setlocale(LC_ALL, "");
|
|
Packit Service |
914d8f |
#endif
|
|
Packit Service |
914d8f |
|
|
Packit Service |
914d8f |
if (errno || *ep != '\0' ||
|
|
Packit Service |
914d8f |
!finite(dbl) || dbl < 0.0 || dbl >= (double)INT_MAX / 1000 - 1.0) {
|
|
Packit Service |
914d8f |
fprintf(stderr, "ping: bad timing interval\n");
|
|
Packit Service |
914d8f |
exit(2);
|
|
Packit Service |
914d8f |
}
|
|
Packit Service |
914d8f |
|
|
Packit Service |
914d8f |
interval = (int)(dbl * 1000);
|
|
Packit Service |
914d8f |
|
|
Packit Service |
914d8f |
options |= F_INTERVAL;
|
|
Packit Service |
914d8f |
break;
|
|
Packit Service |
914d8f |
}
|
|
Packit Service |
6f2e62 |
case 'I':
|
|
Packit Service |
6f2e62 |
/* IPv6 */
|
|
Packit Service |
6f2e62 |
if (strchr(optarg, ':')) {
|
|
Packit Service |
6f2e62 |
char *p, *addr = strdup(optarg);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (!addr) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: out of memory\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
p = strchr(addr, SCOPE_DELIMITER);
|
|
Packit Service |
6f2e62 |
if (p) {
|
|
Packit Service |
6f2e62 |
*p = '\0';
|
|
Packit Service |
6f2e62 |
device = optarg + (p - addr) + 1;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (inet_pton(AF_INET6, addr, (char*)&source6.sin6_addr) <= 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: invalid source address %s\n", optarg);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
options |= F_STRICTSOURCE;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
free(addr);
|
|
Packit Service |
6f2e62 |
} else if (inet_pton(AF_INET, optarg, &source.sin_addr) > 0) {
|
|
Packit Service |
6f2e62 |
options |= F_STRICTSOURCE;
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
device = optarg;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'l':
|
|
Packit Service |
6f2e62 |
preload = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (preload <= 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: bad preload value, should be 1..%d\n", MAX_DUP_CHK);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (preload > MAX_DUP_CHK)
|
|
Packit Service |
6f2e62 |
preload = MAX_DUP_CHK;
|
|
Packit Service |
6f2e62 |
if (uid && preload > 3) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: cannot set preload to value > 3\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'L':
|
|
Packit Service |
6f2e62 |
options |= F_NOLOOP;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'm':
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
char *endp;
|
|
Packit Service |
6f2e62 |
mark = (int)strtoul(optarg, &endp, 10);
|
|
Packit Service |
6f2e62 |
if (mark < 0 || *endp != '\0') {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "mark cannot be negative\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
options |= F_MARK;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
case 'M':
|
|
Packit Service |
6f2e62 |
if (strcmp(optarg, "do") == 0)
|
|
Packit Service |
6f2e62 |
pmtudisc = IP_PMTUDISC_DO;
|
|
Packit Service |
6f2e62 |
else if (strcmp(optarg, "dont") == 0)
|
|
Packit Service |
6f2e62 |
pmtudisc = IP_PMTUDISC_DONT;
|
|
Packit Service |
6f2e62 |
else if (strcmp(optarg, "want") == 0)
|
|
Packit Service |
6f2e62 |
pmtudisc = IP_PMTUDISC_WANT;
|
|
Packit Service |
6f2e62 |
else {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: wrong value for -M: do, dont, want are valid ones.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'n':
|
|
Packit Service |
6f2e62 |
options |= F_NUMERIC;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'O':
|
|
Packit Service |
6f2e62 |
options |= F_OUTSTANDING;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'f':
|
|
Packit Service |
6f2e62 |
/* avoid `getaddrinfo()` during flood */
|
|
Packit Service |
6f2e62 |
options |= F_FLOOD | F_NUMERIC;
|
|
Packit Service |
6f2e62 |
setbuf(stdout, (char *)NULL);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'p':
|
|
Packit Service |
6f2e62 |
options |= F_PINGFILLED;
|
|
Packit Service |
6f2e62 |
fill(optarg, outpack, sizeof(outpack));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'q':
|
|
Packit Service |
6f2e62 |
options |= F_QUIET;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'Q':
|
|
Packit Service |
6f2e62 |
settos = parsetos(optarg); /* IPv4 */
|
|
Packit Service |
6f2e62 |
tclass = settos; /* IPv6 */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'r':
|
|
Packit Service |
6f2e62 |
options |= F_SO_DONTROUTE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 's':
|
|
Packit Service |
6f2e62 |
datalen = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (datalen < 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: illegal negative packet size %d.\n", datalen);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (datalen > MAXPACKET - 8) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: packet size too large: %d\n",
|
|
Packit Service |
6f2e62 |
datalen);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'S':
|
|
Packit Service |
6f2e62 |
sndbuf = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (sndbuf <= 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: bad sndbuf value.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 't':
|
|
Packit Service |
6f2e62 |
options |= F_TTL;
|
|
Packit Service |
6f2e62 |
ttl = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (ttl < 0 || ttl > 255) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: ttl %u out of range\n", ttl);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'U':
|
|
Packit Service |
6f2e62 |
options |= F_LATENCY;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'v':
|
|
Packit Service |
6f2e62 |
options |= F_VERBOSE;
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'V':
|
|
Packit Service |
6f2e62 |
printf("ping utility, iputils-%s\n", SNAPSHOT);
|
|
Packit Service |
6f2e62 |
exit(0);
|
|
Packit Service |
6f2e62 |
case 'w':
|
|
Packit Service |
6f2e62 |
deadline = atoi(optarg);
|
|
Packit Service |
6f2e62 |
if (deadline < 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: bad wait time.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case 'W':
|
|
Packit Service |
914d8f |
lingertime = atoi(optarg);
|
|
Packit Service |
914d8f |
if (lingertime < 0 || lingertime > INT_MAX/1000000) {
|
|
Packit Service |
914d8f |
fprintf(stderr, "ping: bad linger time.\n");
|
|
Packit Service |
914d8f |
exit(2);
|
|
Packit Service |
914d8f |
}
|
|
Packit Service |
914d8f |
lingertime *= 1000;
|
|
Packit Service |
914d8f |
break;
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
argc -= optind;
|
|
Packit Service |
6f2e62 |
argv += optind;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (!argc)
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
target = argv[argc-1];
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Create sockets */
|
|
Packit Service |
6f2e62 |
enable_capability_raw();
|
|
Packit Service |
6f2e62 |
if (hints.ai_family != AF_INET6)
|
|
Packit Service |
6f2e62 |
create_socket(&sock4, AF_INET, hints.ai_socktype, IPPROTO_ICMP, hints.ai_family == AF_INET);
|
|
Packit Service |
6f2e62 |
if (hints.ai_family != AF_INET) {
|
|
Packit Service |
6f2e62 |
create_socket(&sock6, AF_INET6, hints.ai_socktype, IPPROTO_ICMPV6, sock4.fd == -1);
|
|
Packit Service |
6f2e62 |
/* This may not be needed if both protocol versions always had the same value, but
|
|
Packit Service |
6f2e62 |
* since I don't know that, it's better to be safe than sorry. */
|
|
Packit Service |
6f2e62 |
pmtudisc = pmtudisc == IP_PMTUDISC_DO ? IPV6_PMTUDISC_DO :
|
|
Packit Service |
6f2e62 |
pmtudisc == IP_PMTUDISC_DONT ? IPV6_PMTUDISC_DONT :
|
|
Packit Service |
6f2e62 |
pmtudisc == IP_PMTUDISC_WANT ? IPV6_PMTUDISC_WANT : pmtudisc;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
disable_capability_raw();
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Limit address family on single-protocol systems */
|
|
Packit Service |
6f2e62 |
if (hints.ai_family == AF_UNSPEC) {
|
|
Packit Service |
6f2e62 |
if (sock4.fd == -1)
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET6;
|
|
Packit Service |
6f2e62 |
else if (sock6.fd == -1)
|
|
Packit Service |
6f2e62 |
hints.ai_family = AF_INET;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Set socket options */
|
|
Packit Service |
6f2e62 |
if (settos)
|
|
Packit Service |
6f2e62 |
set_socket_option(&sock4, IPPROTO_IP, IP_TOS, &settos, sizeof settos);
|
|
Packit Service |
6f2e62 |
if (tclass)
|
|
Packit Service |
6f2e62 |
set_socket_option(&sock6, IPPROTO_IPV6, IPV6_TCLASS, &tclass, sizeof tclass);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
status = getaddrinfo(target, NULL, &hints, &result);
|
|
Packit Service |
6f2e62 |
if (status) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: %s: %s\n", target, gai_strerror(status));
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
for (ai = result; ai; ai = ai->ai_next) {
|
|
Packit Service |
6f2e62 |
switch (ai->ai_family) {
|
|
Packit Service |
6f2e62 |
case AF_INET:
|
|
Packit Service |
6f2e62 |
status = ping4_run(argc, argv, ai, &sock4);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case AF_INET6:
|
|
Packit Service |
6f2e62 |
status = ping6_run(argc, argv, ai, &sock6);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: unknown protocol family: %d\n", ai->ai_family);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (status == 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
freeaddrinfo(result);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
return status;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
int ping4_run(int argc, char **argv, struct addrinfo *ai, socket_st *sock)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
static const struct addrinfo hints = { .ai_family = AF_INET, .ai_protocol = IPPROTO_UDP, .ai_flags = getaddrinfo_flags };
|
|
Packit Service |
6f2e62 |
int hold, packlen;
|
|
Packit Service |
6f2e62 |
unsigned char *packet;
|
|
Packit Service |
6f2e62 |
char *target;
|
|
Packit Service |
6f2e62 |
char hnamebuf[NI_MAXHOST];
|
|
Packit Service |
6f2e62 |
unsigned char rspace[3 + 4 * NROUTES + 1]; /* record route space */
|
|
Packit Service |
6f2e62 |
__u32 *tmp_rspace;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (argc > 1) {
|
|
Packit Service |
6f2e62 |
if (options & F_RROUTE)
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
else if (options & F_TIMESTAMP) {
|
|
Packit Service |
6f2e62 |
if (ts_type != IPOPT_TS_PRESPEC)
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
if (argc > 5)
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
if (argc > 10)
|
|
Packit Service |
6f2e62 |
usage();
|
|
Packit Service |
6f2e62 |
options |= F_SOURCEROUTE;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
while (argc > 0) {
|
|
Packit Service |
6f2e62 |
target = *argv;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
memset((char *)&whereto, 0, sizeof(whereto));
|
|
Packit Service |
6f2e62 |
whereto.sin_family = AF_INET;
|
|
Packit Service |
6f2e62 |
if (inet_aton(target, &whereto.sin_addr) == 1) {
|
|
Packit Service |
6f2e62 |
hostname = target;
|
|
Packit Service |
6f2e62 |
if (argc == 1)
|
|
Packit Service |
6f2e62 |
options |= F_NUMERIC;
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
struct addrinfo *result = NULL;
|
|
Packit Service |
6f2e62 |
int status;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (argc > 1 || !ai) {
|
|
Packit Service |
6f2e62 |
status = getaddrinfo(target, NULL, &hints, &result);
|
|
Packit Service |
6f2e62 |
if (status) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: %s: %s\n", target, gai_strerror(status));
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
ai = result;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
memcpy(&whereto, ai->ai_addr, sizeof whereto);
|
|
Packit Service |
6f2e62 |
memset(hnamebuf, 0, sizeof hnamebuf);
|
|
Packit Service |
6f2e62 |
if (ai->ai_canonname)
|
|
Packit Service |
6f2e62 |
strncpy(hnamebuf, ai->ai_canonname, sizeof hnamebuf - 1);
|
|
Packit Service |
6f2e62 |
hostname = hnamebuf;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
914d8f |
if (result)
|
|
Packit Service |
6f2e62 |
freeaddrinfo(result);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (argc > 1)
|
|
Packit Service |
6f2e62 |
route[nroute++] = whereto.sin_addr.s_addr;
|
|
Packit Service |
6f2e62 |
argc--;
|
|
Packit Service |
6f2e62 |
argv++;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (source.sin_addr.s_addr == 0) {
|
|
Packit Service |
6f2e62 |
socklen_t alen;
|
|
Packit Service |
6f2e62 |
struct sockaddr_in dst = whereto;
|
|
Packit Service |
6f2e62 |
int probe_fd = socket(AF_INET, SOCK_DGRAM, 0);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (probe_fd < 0) {
|
|
Packit Service |
6f2e62 |
perror("socket");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (device) {
|
|
Packit Service |
6f2e62 |
struct ifreq ifr;
|
|
Packit Service |
6f2e62 |
int i;
|
|
Packit Service |
6f2e62 |
int fds[2] = {probe_fd, sock->fd};
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
memset(&ifr, 0, sizeof(ifr));
|
|
Packit Service |
6f2e62 |
strncpy(ifr.ifr_name, device, IFNAMSIZ-1);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
for (i = 0; i < 2; i++) {
|
|
Packit Service |
6f2e62 |
int fd = fds[i];
|
|
Packit Service |
6f2e62 |
int rc;
|
|
Packit Service |
6f2e62 |
enable_capability_raw();
|
|
Packit Service |
6f2e62 |
rc = setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, device, strlen(device)+1);
|
|
Packit Service |
6f2e62 |
disable_capability_raw();
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (rc == -1) {
|
|
Packit Service |
6f2e62 |
if (IN_MULTICAST(ntohl(dst.sin_addr.s_addr))) {
|
|
Packit Service |
6f2e62 |
struct ip_mreqn imr;
|
|
Packit Service |
6f2e62 |
if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: unknown iface %s\n", device);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
memset(&imr, 0, sizeof(imr));
|
|
Packit Service |
6f2e62 |
imr.imr_ifindex = ifr.ifr_ifindex;
|
|
Packit Service |
6f2e62 |
if (setsockopt(fd, SOL_IP, IP_MULTICAST_IF, &imr, sizeof(imr)) == -1) {
|
|
Packit Service |
6f2e62 |
perror("ping: IP_MULTICAST_IF");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
perror("ping: SO_BINDTODEVICE");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (settos &&
|
|
Packit Service |
6f2e62 |
setsockopt(probe_fd, IPPROTO_IP, IP_TOS, (char *)&settos, sizeof(int)) < 0)
|
|
Packit Service |
6f2e62 |
perror("Warning: error setting QOS sockopts");
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
dst.sin_port = htons(1025);
|
|
Packit Service |
6f2e62 |
if (nroute)
|
|
Packit Service |
6f2e62 |
dst.sin_addr.s_addr = route[0];
|
|
Packit Service |
6f2e62 |
if (connect(probe_fd, (struct sockaddr*)&dst, sizeof(dst)) == -1) {
|
|
Packit Service |
6f2e62 |
if (errno == EACCES) {
|
|
Packit Service |
6f2e62 |
if (broadcast_pings == 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr,
|
|
Packit Service |
6f2e62 |
"Do you want to ping broadcast? Then -b. If not, check your local firewall rules.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "WARNING: pinging broadcast address\n");
|
|
Packit Service |
6f2e62 |
if (setsockopt(probe_fd, SOL_SOCKET, SO_BROADCAST,
|
|
Packit Service |
6f2e62 |
&broadcast_pings, sizeof(broadcast_pings)) < 0) {
|
|
Packit Service |
6f2e62 |
perror ("can't set broadcasting");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (connect(probe_fd, (struct sockaddr*)&dst, sizeof(dst)) == -1) {
|
|
Packit Service |
6f2e62 |
perror("connect");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
perror("connect");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
alen = sizeof(source);
|
|
Packit Service |
6f2e62 |
if (getsockname(probe_fd, (struct sockaddr*)&source, &alen) == -1) {
|
|
Packit Service |
6f2e62 |
perror("getsockname");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
source.sin_port = 0;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#ifndef WITHOUT_IFADDRS
|
|
Packit Service |
6f2e62 |
if (device) {
|
|
Packit Service |
6f2e62 |
struct ifaddrs *ifa0, *ifa;
|
|
Packit Service |
6f2e62 |
int ret;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
ret = getifaddrs(&ifa0);
|
|
Packit Service |
6f2e62 |
if (ret) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "gatifaddrs() failed.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
for (ifa = ifa0; ifa; ifa = ifa->ifa_next) {
|
|
Packit Service |
6f2e62 |
if (!ifa->ifa_addr || ifa->ifa_addr->sa_family != AF_INET)
|
|
Packit Service |
6f2e62 |
continue;
|
|
Packit Service |
6f2e62 |
if (!strncmp(ifa->ifa_name, device, sizeof(device) - 1) &&
|
|
Packit Service |
6f2e62 |
!memcmp(&((struct sockaddr_in *)ifa->ifa_addr)->sin_addr,
|
|
Packit Service |
6f2e62 |
&source.sin_addr, sizeof(source.sin_addr)))
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
freeifaddrs(ifa0);
|
|
Packit Service |
6f2e62 |
if (!ifa)
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: Warning: source address might be selected on device other than %s.\n", device);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
close(probe_fd);
|
|
Packit Service |
6f2e62 |
} while (0);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (whereto.sin_addr.s_addr == 0)
|
|
Packit Service |
6f2e62 |
whereto.sin_addr.s_addr = source.sin_addr.s_addr;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (device) {
|
|
Packit Service |
6f2e62 |
struct ifreq ifr;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
memset(&ifr, 0, sizeof(ifr));
|
|
Packit Service |
6f2e62 |
strncpy(ifr.ifr_name, device, IFNAMSIZ-1);
|
|
Packit Service |
6f2e62 |
if (ioctl(sock->fd, SIOCGIFINDEX, &ifr) < 0) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: unknown iface %s\n", device);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
cmsg.ipi.ipi_ifindex = ifr.ifr_ifindex;
|
|
Packit Service |
6f2e62 |
cmsg_len = sizeof(cmsg);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (broadcast_pings || IN_MULTICAST(ntohl(whereto.sin_addr.s_addr))) {
|
|
Packit Service |
6f2e62 |
if (uid) {
|
|
Packit Service |
6f2e62 |
if (interval < 1000) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: broadcast ping with too short interval.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (pmtudisc >= 0 && pmtudisc != IP_PMTUDISC_DO) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: broadcast ping does not fragment.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (pmtudisc < 0)
|
|
Packit Service |
6f2e62 |
pmtudisc = IP_PMTUDISC_DO;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (pmtudisc >= 0) {
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_IP, IP_MTU_DISCOVER, &pmtudisc, sizeof pmtudisc) == -1) {
|
|
Packit Service |
6f2e62 |
perror("ping: IP_MTU_DISCOVER");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if ((options&F_STRICTSOURCE) &&
|
|
Packit Service |
6f2e62 |
bind(sock->fd, (struct sockaddr *) &source, sizeof source) == -1) {
|
|
Packit Service |
6f2e62 |
perror("bind");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (sock->socktype == SOCK_RAW) {
|
|
Packit Service |
6f2e62 |
struct icmp_filter filt;
|
|
Packit Service |
6f2e62 |
filt.data = ~((1<
|
|
Packit Service |
6f2e62 |
(1<
|
|
Packit Service |
6f2e62 |
(1<
|
|
Packit Service |
6f2e62 |
(1<
|
|
Packit Service |
6f2e62 |
(1<
|
|
Packit Service |
6f2e62 |
(1<
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_RAW, ICMP_FILTER, &filt, sizeof filt) == -1)
|
|
Packit Service |
6f2e62 |
perror("WARNING: setsockopt(ICMP_FILTER)");
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
hold = 1;
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_IP, IP_RECVERR, &hold, sizeof hold))
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "WARNING: your kernel is veeery old. No problems.\n");
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (sock->socktype == SOCK_DGRAM) {
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_IP, IP_RECVTTL, &hold, sizeof hold))
|
|
Packit Service |
6f2e62 |
perror("WARNING: setsockopt(IP_RECVTTL)");
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_IP, IP_RETOPTS, &hold, sizeof hold))
|
|
Packit Service |
6f2e62 |
perror("WARNING: setsockopt(IP_RETOPTS)");
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* record route option */
|
|
Packit Service |
6f2e62 |
if (options & F_RROUTE) {
|
|
Packit Service |
6f2e62 |
memset(rspace, 0, sizeof(rspace));
|
|
Packit Service |
6f2e62 |
rspace[0] = IPOPT_NOP;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OPTVAL] = IPOPT_RR;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OLEN] = sizeof(rspace)-1;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OFFSET] = IPOPT_MINOFF;
|
|
Packit Service |
6f2e62 |
optlen = 40;
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_OPTIONS, rspace, sizeof rspace) < 0) {
|
|
Packit Service |
6f2e62 |
perror("ping: record route");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (options & F_TIMESTAMP) {
|
|
Packit Service |
6f2e62 |
memset(rspace, 0, sizeof(rspace));
|
|
Packit Service |
6f2e62 |
rspace[0] = IPOPT_TIMESTAMP;
|
|
Packit Service |
6f2e62 |
rspace[1] = (ts_type==IPOPT_TS_TSONLY ? 40 : 36);
|
|
Packit Service |
6f2e62 |
rspace[2] = 5;
|
|
Packit Service |
6f2e62 |
rspace[3] = ts_type;
|
|
Packit Service |
6f2e62 |
if (ts_type == IPOPT_TS_PRESPEC) {
|
|
Packit Service |
6f2e62 |
int i;
|
|
Packit Service |
6f2e62 |
rspace[1] = 4+nroute*8;
|
|
Packit Service |
6f2e62 |
for (i = 0; i < nroute; i++) {
|
|
Packit Service |
6f2e62 |
tmp_rspace = (__u32*)&rspace[4+i*8];
|
|
Packit Service |
6f2e62 |
*tmp_rspace = route[i];
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_OPTIONS, rspace, rspace[1]) < 0) {
|
|
Packit Service |
6f2e62 |
rspace[3] = 2;
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_OPTIONS, rspace, rspace[1]) < 0) {
|
|
Packit Service |
6f2e62 |
perror("ping: ts option");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
optlen = 40;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (options & F_SOURCEROUTE) {
|
|
Packit Service |
6f2e62 |
int i;
|
|
Packit Service |
6f2e62 |
memset(rspace, 0, sizeof(rspace));
|
|
Packit Service |
6f2e62 |
rspace[0] = IPOPT_NOOP;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OPTVAL] = (options & F_SO_DONTROUTE) ? IPOPT_SSRR
|
|
Packit Service |
6f2e62 |
: IPOPT_LSRR;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OLEN] = 3 + nroute*4;
|
|
Packit Service |
6f2e62 |
rspace[1+IPOPT_OFFSET] = IPOPT_MINOFF;
|
|
Packit Service |
6f2e62 |
for (i = 0; i < nroute; i++) {
|
|
Packit Service |
6f2e62 |
tmp_rspace = (__u32*)&rspace[4+i*4];
|
|
Packit Service |
6f2e62 |
*tmp_rspace = route[i];
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_OPTIONS, rspace, 4 + nroute*4) < 0) {
|
|
Packit Service |
6f2e62 |
perror("ping: record route");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
optlen = 40;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Estimate memory eaten by single packet. It is rough estimate.
|
|
Packit Service |
6f2e62 |
* Actually, for small datalen's it depends on kernel side a lot. */
|
|
Packit Service |
6f2e62 |
hold = datalen + 8;
|
|
Packit Service |
6f2e62 |
hold += ((hold+511)/512)*(optlen + 20 + 16 + 64 + 160);
|
|
Packit Service |
6f2e62 |
sock_setbufs(sock, hold);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (broadcast_pings) {
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_SOCKET, SO_BROADCAST, &broadcast_pings, sizeof broadcast_pings) < 0) {
|
|
Packit Service |
6f2e62 |
perror ("ping: can't set broadcasting");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (options & F_NOLOOP) {
|
|
Packit Service |
6f2e62 |
int loop = 0;
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof loop) == -1) {
|
|
Packit Service |
6f2e62 |
perror ("ping: can't disable multicast loopback");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (options & F_TTL) {
|
|
Packit Service |
6f2e62 |
int ittl = ttl;
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof ttl) == -1) {
|
|
Packit Service |
6f2e62 |
perror ("ping: can't set multicast time-to-live");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, IPPROTO_IP, IP_TTL, &ittl, sizeof ittl) == -1) {
|
|
Packit Service |
6f2e62 |
perror ("ping: can't set unicast time-to-live");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (datalen > 0xFFFF - 8 - optlen - 20) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "Error: packet size %d is too large. Maximum is %d\n", datalen, 0xFFFF-8-20-optlen);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (datalen >= sizeof(struct timeval)) /* can we time transfer */
|
|
Packit Service |
6f2e62 |
timing = 1;
|
|
Packit Service |
6f2e62 |
packlen = datalen + MAXIPLEN + MAXICMPLEN;
|
|
Packit Service |
6f2e62 |
if (!(packet = (unsigned char *)malloc((unsigned int)packlen))) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: out of memory.\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("PING %s (%s) ", hostname, inet_ntoa(whereto.sin_addr));
|
|
Packit Service |
6f2e62 |
if (device || (options&F_STRICTSOURCE))
|
|
Packit Service |
6f2e62 |
printf("from %s %s: ", inet_ntoa(source.sin_addr), device ?: "");
|
|
Packit Service |
6f2e62 |
printf("%d(%d) bytes of data.\n", datalen, datalen+8+optlen+20);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
setup(sock);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
main_loop(&ping4_func_set, sock, packet, packlen);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
int ping4_receive_error_msg(socket_st *sock)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
int res;
|
|
Packit Service |
6f2e62 |
char cbuf[512];
|
|
Packit Service |
6f2e62 |
struct iovec iov;
|
|
Packit Service |
6f2e62 |
struct msghdr msg;
|
|
Packit Service |
6f2e62 |
struct cmsghdr *cmsg;
|
|
Packit Service |
6f2e62 |
struct sock_extended_err *e;
|
|
Packit Service |
6f2e62 |
struct icmphdr icmph;
|
|
Packit Service |
6f2e62 |
struct sockaddr_in target;
|
|
Packit Service |
6f2e62 |
int net_errors = 0;
|
|
Packit Service |
6f2e62 |
int local_errors = 0;
|
|
Packit Service |
6f2e62 |
int saved_errno = errno;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
iov.iov_base = &icmph;
|
|
Packit Service |
6f2e62 |
iov.iov_len = sizeof(icmph);
|
|
Packit Service |
6f2e62 |
msg.msg_name = (void*)⌖
|
|
Packit Service |
6f2e62 |
msg.msg_namelen = sizeof(target);
|
|
Packit Service |
6f2e62 |
msg.msg_iov = &iov;
|
|
Packit Service |
6f2e62 |
msg.msg_iovlen = 1;
|
|
Packit Service |
6f2e62 |
msg.msg_flags = 0;
|
|
Packit Service |
6f2e62 |
msg.msg_control = cbuf;
|
|
Packit Service |
6f2e62 |
msg.msg_controllen = sizeof(cbuf);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
res = recvmsg(sock->fd, &msg, MSG_ERRQUEUE|MSG_DONTWAIT);
|
|
Packit Service |
6f2e62 |
if (res < 0)
|
|
Packit Service |
6f2e62 |
goto out;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
e = NULL;
|
|
Packit Service |
6f2e62 |
for (cmsg = CMSG_FIRSTHDR(&msg;; cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
|
|
Packit Service |
6f2e62 |
if (cmsg->cmsg_level == SOL_IP) {
|
|
Packit Service |
6f2e62 |
if (cmsg->cmsg_type == IP_RECVERR)
|
|
Packit Service |
6f2e62 |
e = (struct sock_extended_err *)CMSG_DATA(cmsg);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (e == NULL)
|
|
Packit Service |
6f2e62 |
abort();
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (e->ee_origin == SO_EE_ORIGIN_LOCAL) {
|
|
Packit Service |
6f2e62 |
local_errors++;
|
|
Packit Service |
6f2e62 |
if (options & F_QUIET)
|
|
Packit Service |
6f2e62 |
goto out;
|
|
Packit Service |
6f2e62 |
if (options & F_FLOOD)
|
|
Packit Service |
6f2e62 |
write_stdout("E", 1);
|
|
Packit Service |
6f2e62 |
else if (e->ee_errno != EMSGSIZE)
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: local error: %s\n", strerror(e->ee_errno));
|
|
Packit Service |
6f2e62 |
else
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: local error: Message too long, mtu=%u\n", e->ee_info);
|
|
Packit Service |
6f2e62 |
nerrors++;
|
|
Packit Service |
6f2e62 |
} else if (e->ee_origin == SO_EE_ORIGIN_ICMP) {
|
|
Packit Service |
6f2e62 |
struct sockaddr_in *sin = (struct sockaddr_in*)(e+1);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (res < sizeof(icmph) ||
|
|
Packit Service |
6f2e62 |
target.sin_addr.s_addr != whereto.sin_addr.s_addr ||
|
|
Packit Service |
6f2e62 |
icmph.type != ICMP_ECHO ||
|
|
Packit Service |
6f2e62 |
!is_ours(sock, icmph.un.echo.id)) {
|
|
Packit Service |
6f2e62 |
/* Not our error, not an error at all. Clear. */
|
|
Packit Service |
6f2e62 |
saved_errno = 0;
|
|
Packit Service |
6f2e62 |
goto out;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
acknowledge(ntohs(icmph.un.echo.sequence));
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
net_errors++;
|
|
Packit Service |
6f2e62 |
nerrors++;
|
|
Packit Service |
6f2e62 |
if (options & F_QUIET)
|
|
Packit Service |
6f2e62 |
goto out;
|
|
Packit Service |
6f2e62 |
if (options & F_FLOOD) {
|
|
Packit Service |
6f2e62 |
write_stdout("\bE", 2);
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
print_timestamp();
|
|
Packit Service |
6f2e62 |
printf("From %s icmp_seq=%u ", pr_addr(sin, sizeof *sin), ntohs(icmph.un.echo.sequence));
|
|
Packit Service |
6f2e62 |
pr_icmph(e->ee_type, e->ee_code, e->ee_info, NULL);
|
|
Packit Service |
6f2e62 |
fflush(stdout);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
out:
|
|
Packit Service |
6f2e62 |
errno = saved_errno;
|
|
Packit Service |
6f2e62 |
return net_errors ? : -local_errors;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* pinger --
|
|
Packit Service |
6f2e62 |
* Compose and transmit an ICMP ECHO REQUEST packet. The IP packet
|
|
Packit Service |
6f2e62 |
* will be added on by the kernel. The ID field is our UNIX process ID,
|
|
Packit Service |
6f2e62 |
* and the sequence number is an ascending integer. The first 8 bytes
|
|
Packit Service |
6f2e62 |
* of the data portion are used to hold a UNIX "timeval" struct in VAX
|
|
Packit Service |
6f2e62 |
* byte-order, to compute the round-trip time.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
int ping4_send_probe(socket_st *sock, void *packet, unsigned packet_size)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct icmphdr *icp;
|
|
Packit Service |
6f2e62 |
int cc;
|
|
Packit Service |
6f2e62 |
int i;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
icp = (struct icmphdr *)packet;
|
|
Packit Service |
6f2e62 |
icp->type = ICMP_ECHO;
|
|
Packit Service |
6f2e62 |
icp->code = 0;
|
|
Packit Service |
6f2e62 |
icp->checksum = 0;
|
|
Packit Service |
6f2e62 |
icp->un.echo.sequence = htons(ntransmitted+1);
|
|
Packit Service |
6f2e62 |
icp->un.echo.id = ident; /* ID */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
rcvd_clear(ntransmitted+1);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (timing) {
|
|
Packit Service |
6f2e62 |
if (options&F_LATENCY) {
|
|
Packit Service |
6f2e62 |
struct timeval tmp_tv;
|
|
Packit Service |
6f2e62 |
gettimeofday(&tmp_tv, NULL);
|
|
Packit Service |
6f2e62 |
memcpy(icp+1, &tmp_tv, sizeof(tmp_tv));
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
memset(icp+1, 0, sizeof(struct timeval));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
cc = datalen + 8; /* skips ICMP portion */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* compute ICMP checksum here */
|
|
Packit Service |
6f2e62 |
icp->checksum = in_cksum((unsigned short *)icp, cc, 0);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (timing && !(options&F_LATENCY)) {
|
|
Packit Service |
6f2e62 |
struct timeval tmp_tv;
|
|
Packit Service |
6f2e62 |
gettimeofday(&tmp_tv, NULL);
|
|
Packit Service |
6f2e62 |
memcpy(icp+1, &tmp_tv, sizeof(tmp_tv));
|
|
Packit Service |
6f2e62 |
icp->checksum = in_cksum((unsigned short *)&tmp_tv, sizeof(tmp_tv), ~icp->checksum);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
i = sendto(sock->fd, icp, cc, 0, (struct sockaddr*)&whereto, sizeof(whereto));
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
return (cc == i ? 0 : i);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* parse_reply --
|
|
Packit Service |
6f2e62 |
* Print out the packet, if it came from us. This logic is necessary
|
|
Packit Service |
6f2e62 |
* because ALL readers of the ICMP socket get a copy of ALL ICMP packets
|
|
Packit Service |
6f2e62 |
* which arrive ('tis only fair). This permits multiple copies of this
|
|
Packit Service |
6f2e62 |
* program to be run without having intermingled output (or statistics!).
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
static
|
|
Packit Service |
6f2e62 |
void pr_echo_reply(__u8 *_icp, int len)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct icmphdr *icp = (struct icmphdr *)_icp;
|
|
Packit Service |
6f2e62 |
printf(" icmp_seq=%u", ntohs(icp->un.echo.sequence));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
int
|
|
Packit Service |
6f2e62 |
ping4_parse_reply(struct socket_st *sock, struct msghdr *msg, int cc, void *addr, struct timeval *tv)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct sockaddr_in *from = addr;
|
|
Packit Service |
6f2e62 |
__u8 *buf = msg->msg_iov->iov_base;
|
|
Packit Service |
6f2e62 |
struct icmphdr *icp;
|
|
Packit Service |
6f2e62 |
struct iphdr *ip;
|
|
Packit Service |
6f2e62 |
int hlen;
|
|
Packit Service |
6f2e62 |
int csfailed;
|
|
Packit Service |
6f2e62 |
struct cmsghdr *cmsg;
|
|
Packit Service |
6f2e62 |
int ttl;
|
|
Packit Service |
6f2e62 |
__u8 *opts, *tmp_ttl;
|
|
Packit Service |
6f2e62 |
int optlen;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Check the IP header */
|
|
Packit Service |
6f2e62 |
ip = (struct iphdr *)buf;
|
|
Packit Service |
6f2e62 |
if (sock->socktype == SOCK_RAW) {
|
|
Packit Service |
6f2e62 |
hlen = ip->ihl*4;
|
|
Packit Service |
6f2e62 |
if (cc < hlen + 8 || ip->ihl < 5) {
|
|
Packit Service |
6f2e62 |
if (options & F_VERBOSE)
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: packet too short (%d bytes) from %s\n", cc,
|
|
Packit Service |
6f2e62 |
pr_addr(from, sizeof *from));
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
ttl = ip->ttl;
|
|
Packit Service |
6f2e62 |
opts = buf + sizeof(struct iphdr);
|
|
Packit Service |
6f2e62 |
optlen = hlen - sizeof(struct iphdr);
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
hlen = 0;
|
|
Packit Service |
6f2e62 |
ttl = 0;
|
|
Packit Service |
6f2e62 |
opts = buf;
|
|
Packit Service |
6f2e62 |
optlen = 0;
|
|
Packit Service |
6f2e62 |
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
|
|
Packit Service |
6f2e62 |
if (cmsg->cmsg_level != SOL_IP)
|
|
Packit Service |
6f2e62 |
continue;
|
|
Packit Service |
6f2e62 |
if (cmsg->cmsg_type == IP_TTL) {
|
|
Packit Service |
6f2e62 |
if (cmsg->cmsg_len < sizeof(int))
|
|
Packit Service |
6f2e62 |
continue;
|
|
Packit Service |
6f2e62 |
tmp_ttl = (__u8 *) CMSG_DATA(cmsg);
|
|
Packit Service |
6f2e62 |
ttl = (int)*tmp_ttl;
|
|
Packit Service |
6f2e62 |
} else if (cmsg->cmsg_type == IP_RETOPTS) {
|
|
Packit Service |
6f2e62 |
opts = (__u8 *) CMSG_DATA(cmsg);
|
|
Packit Service |
6f2e62 |
optlen = cmsg->cmsg_len;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Now the ICMP part */
|
|
Packit Service |
6f2e62 |
cc -= hlen;
|
|
Packit Service |
6f2e62 |
icp = (struct icmphdr *)(buf + hlen);
|
|
Packit Service |
6f2e62 |
csfailed = in_cksum((unsigned short *)icp, cc, 0);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (icp->type == ICMP_ECHOREPLY) {
|
|
Packit Service |
6f2e62 |
if (!is_ours(sock, icp->un.echo.id))
|
|
Packit Service |
6f2e62 |
return 1; /* 'Twas not our ECHO */
|
|
Packit Service |
6f2e62 |
if (!contains_pattern_in_payload((__u8*)(icp+1)))
|
|
Packit Service |
6f2e62 |
return 1; /* 'Twas really not our ECHO */
|
|
Packit Service |
6f2e62 |
if (gather_statistics((__u8*)icp, sizeof(*icp), cc,
|
|
Packit Service |
6f2e62 |
ntohs(icp->un.echo.sequence),
|
|
Packit Service |
6f2e62 |
ttl, csfailed, tv, pr_addr(from, sizeof *from),
|
|
Packit Service |
6f2e62 |
pr_echo_reply)) {
|
|
Packit Service |
6f2e62 |
fflush(stdout);
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
/* We fall here when a redirect or source quench arrived. */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
switch (icp->type) {
|
|
Packit Service |
6f2e62 |
case ICMP_ECHO:
|
|
Packit Service |
6f2e62 |
/* MUST NOT */
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
case ICMP_SOURCE_QUENCH:
|
|
Packit Service |
6f2e62 |
case ICMP_REDIRECT:
|
|
Packit Service |
6f2e62 |
case ICMP_DEST_UNREACH:
|
|
Packit Service |
6f2e62 |
case ICMP_TIME_EXCEEDED:
|
|
Packit Service |
6f2e62 |
case ICMP_PARAMETERPROB:
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct iphdr * iph = (struct iphdr *)(&icp[1]);
|
|
Packit Service |
6f2e62 |
struct icmphdr *icp1 = (struct icmphdr*)((unsigned char *)iph + iph->ihl*4);
|
|
Packit Service |
6f2e62 |
int error_pkt;
|
|
Packit Service |
6f2e62 |
if (cc < 8+sizeof(struct iphdr)+8 ||
|
|
Packit Service |
6f2e62 |
cc < 8+iph->ihl*4+8)
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
if (icp1->type != ICMP_ECHO ||
|
|
Packit Service |
6f2e62 |
iph->daddr != whereto.sin_addr.s_addr ||
|
|
Packit Service |
6f2e62 |
!is_ours(sock, icp1->un.echo.id))
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
error_pkt = (icp->type != ICMP_REDIRECT &&
|
|
Packit Service |
6f2e62 |
icp->type != ICMP_SOURCE_QUENCH);
|
|
Packit Service |
6f2e62 |
if (error_pkt) {
|
|
Packit Service |
6f2e62 |
acknowledge(ntohs(icp1->un.echo.sequence));
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (options & (F_QUIET | F_FLOOD))
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
print_timestamp();
|
|
Packit Service |
6f2e62 |
printf("From %s: icmp_seq=%u ",
|
|
Packit Service |
6f2e62 |
pr_addr(from, sizeof *from),
|
|
Packit Service |
6f2e62 |
ntohs(icp1->un.echo.sequence));
|
|
Packit Service |
6f2e62 |
if (csfailed)
|
|
Packit Service |
6f2e62 |
printf("(BAD CHECKSUM)");
|
|
Packit Service |
6f2e62 |
pr_icmph(icp->type, icp->code, ntohl(icp->un.gateway), icp);
|
|
Packit Service |
6f2e62 |
return 1;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
/* MUST NOT */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if ((options & F_FLOOD) && !(options & (F_VERBOSE|F_QUIET))) {
|
|
Packit Service |
6f2e62 |
if (!csfailed)
|
|
Packit Service |
6f2e62 |
write_stdout("!E", 2);
|
|
Packit Service |
6f2e62 |
else
|
|
Packit Service |
6f2e62 |
write_stdout("!EC", 3);
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (!(options & F_VERBOSE) || uid)
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
if (options & F_PTIMEOFDAY) {
|
|
Packit Service |
6f2e62 |
struct timeval recv_time;
|
|
Packit Service |
6f2e62 |
gettimeofday(&recv_time, NULL);
|
|
Packit Service |
6f2e62 |
printf("%lu.%06lu ", (unsigned long)recv_time.tv_sec, (unsigned long)recv_time.tv_usec);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
printf("From %s: ", pr_addr(from, sizeof *from));
|
|
Packit Service |
6f2e62 |
if (csfailed) {
|
|
Packit Service |
6f2e62 |
printf("(BAD CHECKSUM)\n");
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
pr_icmph(icp->type, icp->code, ntohl(icp->un.gateway), icp);
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (options & F_AUDIBLE) {
|
|
Packit Service |
6f2e62 |
putchar('\a');
|
|
Packit Service |
6f2e62 |
if(options & F_FLOOD)
|
|
Packit Service |
6f2e62 |
fflush(stdout);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (!(options & F_FLOOD)) {
|
|
Packit Service |
6f2e62 |
pr_options(opts, optlen + sizeof(struct iphdr));
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
putchar('\n');
|
|
Packit Service |
6f2e62 |
fflush(stdout);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
return 0;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
Packit Service |
6f2e62 |
# define ODDBYTE(v) (v)
|
|
Packit Service |
6f2e62 |
#elif BYTE_ORDER == BIG_ENDIAN
|
|
Packit Service |
6f2e62 |
# define ODDBYTE(v) ((unsigned short)(v) << 8)
|
|
Packit Service |
6f2e62 |
#else
|
|
Packit Service |
6f2e62 |
# define ODDBYTE(v) htons((unsigned short)(v) << 8)
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
unsigned short
|
|
Packit Service |
6f2e62 |
in_cksum(const unsigned short *addr, register int len, unsigned short csum)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
register int nleft = len;
|
|
Packit Service |
6f2e62 |
const unsigned short *w = addr;
|
|
Packit Service |
6f2e62 |
register unsigned short answer;
|
|
Packit Service |
6f2e62 |
register int sum = csum;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* Our algorithm is simple, using a 32 bit accumulator (sum),
|
|
Packit Service |
6f2e62 |
* we add sequential 16 bit words to it, and at the end, fold
|
|
Packit Service |
6f2e62 |
* back all the carry bits from the top 16 bits into the lower
|
|
Packit Service |
6f2e62 |
* 16 bits.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
while (nleft > 1) {
|
|
Packit Service |
6f2e62 |
sum += *w++;
|
|
Packit Service |
6f2e62 |
nleft -= 2;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* mop up an odd byte, if necessary */
|
|
Packit Service |
6f2e62 |
if (nleft == 1)
|
|
Packit Service |
6f2e62 |
sum += ODDBYTE(*(unsigned char *)w); /* le16toh() may be unavailable on old systems */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* add back carry outs from top 16 bits to low 16 bits
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
|
|
Packit Service |
6f2e62 |
sum += (sum >> 16); /* add carry */
|
|
Packit Service |
6f2e62 |
answer = ~sum; /* truncate to 16 bits */
|
|
Packit Service |
6f2e62 |
return (answer);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* pr_icmph --
|
|
Packit Service |
6f2e62 |
* Print a descriptive string about an ICMP header.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
void pr_icmph(__u8 type, __u8 code, __u32 info, struct icmphdr *icp)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
switch(type) {
|
|
Packit Service |
6f2e62 |
case ICMP_ECHOREPLY:
|
|
Packit Service |
6f2e62 |
printf("Echo Reply\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq + Data */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_DEST_UNREACH:
|
|
Packit Service |
6f2e62 |
switch(code) {
|
|
Packit Service |
6f2e62 |
case ICMP_NET_UNREACH:
|
|
Packit Service |
6f2e62 |
printf("Destination Net Unreachable\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_HOST_UNREACH:
|
|
Packit Service |
6f2e62 |
printf("Destination Host Unreachable\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PROT_UNREACH:
|
|
Packit Service |
6f2e62 |
printf("Destination Protocol Unreachable\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PORT_UNREACH:
|
|
Packit Service |
6f2e62 |
printf("Destination Port Unreachable\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_FRAG_NEEDED:
|
|
Packit Service |
6f2e62 |
printf("Frag needed and DF set (mtu = %u)\n", info);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_SR_FAILED:
|
|
Packit Service |
6f2e62 |
printf("Source Route Failed\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_NET_UNKNOWN:
|
|
Packit Service |
6f2e62 |
printf("Destination Net Unknown\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_HOST_UNKNOWN:
|
|
Packit Service |
6f2e62 |
printf("Destination Host Unknown\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_HOST_ISOLATED:
|
|
Packit Service |
6f2e62 |
printf("Source Host Isolated\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_NET_ANO:
|
|
Packit Service |
6f2e62 |
printf("Destination Net Prohibited\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_HOST_ANO:
|
|
Packit Service |
6f2e62 |
printf("Destination Host Prohibited\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_NET_UNR_TOS:
|
|
Packit Service |
6f2e62 |
printf("Destination Net Unreachable for Type of Service\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_HOST_UNR_TOS:
|
|
Packit Service |
6f2e62 |
printf("Destination Host Unreachable for Type of Service\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PKT_FILTERED:
|
|
Packit Service |
6f2e62 |
printf("Packet filtered\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PREC_VIOLATION:
|
|
Packit Service |
6f2e62 |
printf("Precedence Violation\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PREC_CUTOFF:
|
|
Packit Service |
6f2e62 |
printf("Precedence Cutoff\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
printf("Dest Unreachable, Bad Code: %d\n", code);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (icp && (options & F_VERBOSE))
|
|
Packit Service |
6f2e62 |
pr_iph((struct iphdr*)(icp + 1));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_SOURCE_QUENCH:
|
|
Packit Service |
6f2e62 |
printf("Source Quench\n");
|
|
Packit Service |
6f2e62 |
if (icp && (options & F_VERBOSE))
|
|
Packit Service |
6f2e62 |
pr_iph((struct iphdr*)(icp + 1));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_REDIRECT:
|
|
Packit Service |
6f2e62 |
switch(code) {
|
|
Packit Service |
6f2e62 |
case ICMP_REDIR_NET:
|
|
Packit Service |
6f2e62 |
printf("Redirect Network");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_REDIR_HOST:
|
|
Packit Service |
6f2e62 |
printf("Redirect Host");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_REDIR_NETTOS:
|
|
Packit Service |
6f2e62 |
printf("Redirect Type of Service and Network");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_REDIR_HOSTTOS:
|
|
Packit Service |
6f2e62 |
printf("Redirect Type of Service and Host");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
printf("Redirect, Bad Code: %d", code);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
struct sockaddr_in sin = { .sin_family = AF_INET, .sin_addr = { icp ? icp->un.gateway : info } };
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("(New nexthop: %s)\n", pr_addr(&sin, sizeof sin));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (icp && (options & F_VERBOSE))
|
|
Packit Service |
6f2e62 |
pr_iph((struct iphdr*)(icp + 1));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_ECHO:
|
|
Packit Service |
6f2e62 |
printf("Echo Request\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq + Data */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_TIME_EXCEEDED:
|
|
Packit Service |
6f2e62 |
switch(code) {
|
|
Packit Service |
6f2e62 |
case ICMP_EXC_TTL:
|
|
Packit Service |
6f2e62 |
printf("Time to live exceeded\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_EXC_FRAGTIME:
|
|
Packit Service |
6f2e62 |
printf("Frag reassembly time exceeded\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
printf("Time exceeded, Bad Code: %d\n", code);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (icp && (options & F_VERBOSE))
|
|
Packit Service |
6f2e62 |
pr_iph((struct iphdr*)(icp + 1));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_PARAMETERPROB:
|
|
Packit Service |
6f2e62 |
printf("Parameter problem: pointer = %u\n", icp ? (ntohl(icp->un.gateway)>>24) : info);
|
|
Packit Service |
6f2e62 |
if (icp && (options & F_VERBOSE))
|
|
Packit Service |
6f2e62 |
pr_iph((struct iphdr*)(icp + 1));
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_TIMESTAMP:
|
|
Packit Service |
6f2e62 |
printf("Timestamp\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq + 3 timestamps */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_TIMESTAMPREPLY:
|
|
Packit Service |
6f2e62 |
printf("Timestamp Reply\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq + 3 timestamps */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_INFO_REQUEST:
|
|
Packit Service |
6f2e62 |
printf("Information Request\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case ICMP_INFO_REPLY:
|
|
Packit Service |
6f2e62 |
printf("Information Reply\n");
|
|
Packit Service |
6f2e62 |
/* XXX ID + Seq */
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
#ifdef ICMP_MASKREQ
|
|
Packit Service |
6f2e62 |
case ICMP_MASKREQ:
|
|
Packit Service |
6f2e62 |
printf("Address Mask Request\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
#ifdef ICMP_MASKREPLY
|
|
Packit Service |
6f2e62 |
case ICMP_MASKREPLY:
|
|
Packit Service |
6f2e62 |
printf("Address Mask Reply\n");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
#endif
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
printf("Bad ICMP type: %d\n", type);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
void pr_options(unsigned char * cp, int hlen)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
int i, j;
|
|
Packit Service |
6f2e62 |
int optlen, totlen;
|
|
Packit Service |
6f2e62 |
unsigned char * optptr;
|
|
Packit Service |
6f2e62 |
static int old_rrlen;
|
|
Packit Service |
6f2e62 |
static char old_rr[MAX_IPOPTLEN];
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
totlen = hlen-sizeof(struct iphdr);
|
|
Packit Service |
6f2e62 |
optptr = cp;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
while (totlen > 0) {
|
|
Packit Service |
6f2e62 |
if (*optptr == IPOPT_EOL)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
if (*optptr == IPOPT_NOP) {
|
|
Packit Service |
6f2e62 |
totlen--;
|
|
Packit Service |
6f2e62 |
optptr++;
|
|
Packit Service |
6f2e62 |
printf("\nNOP");
|
|
Packit Service |
6f2e62 |
continue;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
cp = optptr;
|
|
Packit Service |
6f2e62 |
optlen = optptr[1];
|
|
Packit Service |
6f2e62 |
if (optlen < 2 || optlen > totlen)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
switch (*cp) {
|
|
Packit Service |
6f2e62 |
case IPOPT_SSRR:
|
|
Packit Service |
6f2e62 |
case IPOPT_LSRR:
|
|
Packit Service |
6f2e62 |
printf("\n%cSRR: ", *cp==IPOPT_SSRR ? 'S' : 'L');
|
|
Packit Service |
6f2e62 |
j = *++cp;
|
|
Packit Service |
6f2e62 |
cp++;
|
|
Packit Service |
6f2e62 |
if (j > IPOPT_MINOFF) {
|
|
Packit Service |
6f2e62 |
for (;;) {
|
|
Packit Service |
6f2e62 |
__u32 address;
|
|
Packit Service |
6f2e62 |
memcpy(&address, cp, 4);
|
|
Packit Service |
6f2e62 |
cp += 4;
|
|
Packit Service |
6f2e62 |
if (address == 0)
|
|
Packit Service |
6f2e62 |
printf("\t0.0.0.0");
|
|
Packit Service |
6f2e62 |
else {
|
|
Packit Service |
6f2e62 |
struct sockaddr_in sin = { .sin_family = AF_INET, .sin_addr = { address } };
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("\t%s", pr_addr(&sin, sizeof sin));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
j -= 4;
|
|
Packit Service |
6f2e62 |
putchar('\n');
|
|
Packit Service |
6f2e62 |
if (j <= IPOPT_MINOFF)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case IPOPT_RR:
|
|
Packit Service |
6f2e62 |
j = *++cp; /* get length */
|
|
Packit Service |
6f2e62 |
i = *++cp; /* and pointer */
|
|
Packit Service |
6f2e62 |
if (i > j)
|
|
Packit Service |
6f2e62 |
i = j;
|
|
Packit Service |
6f2e62 |
i -= IPOPT_MINOFF;
|
|
Packit Service |
6f2e62 |
if (i <= 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
if (i == old_rrlen
|
|
Packit Service |
6f2e62 |
&& !memcmp(cp, old_rr, i)
|
|
Packit Service |
6f2e62 |
&& !(options & F_FLOOD)) {
|
|
Packit Service |
6f2e62 |
printf("\t(same route)");
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
old_rrlen = i;
|
|
Packit Service |
6f2e62 |
memcpy(old_rr, (char *)cp, i);
|
|
Packit Service |
6f2e62 |
printf("\nRR: ");
|
|
Packit Service |
6f2e62 |
cp++;
|
|
Packit Service |
6f2e62 |
for (;;) {
|
|
Packit Service |
6f2e62 |
__u32 address;
|
|
Packit Service |
6f2e62 |
memcpy(&address, cp, 4);
|
|
Packit Service |
6f2e62 |
cp += 4;
|
|
Packit Service |
6f2e62 |
if (address == 0)
|
|
Packit Service |
6f2e62 |
printf("\t0.0.0.0");
|
|
Packit Service |
6f2e62 |
else {
|
|
Packit Service |
6f2e62 |
struct sockaddr_in sin = { .sin_family = AF_INET, .sin_addr = { address } };
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("\t%s", pr_addr(&sin, sizeof sin));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
i -= 4;
|
|
Packit Service |
6f2e62 |
putchar('\n');
|
|
Packit Service |
6f2e62 |
if (i <= 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
case IPOPT_TS:
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
int stdtime = 0, nonstdtime = 0;
|
|
Packit Service |
6f2e62 |
__u8 flags;
|
|
Packit Service |
6f2e62 |
j = *++cp; /* get length */
|
|
Packit Service |
6f2e62 |
i = *++cp; /* and pointer */
|
|
Packit Service |
6f2e62 |
if (i > j)
|
|
Packit Service |
6f2e62 |
i = j;
|
|
Packit Service |
6f2e62 |
i -= 5;
|
|
Packit Service |
6f2e62 |
if (i <= 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
flags = *++cp;
|
|
Packit Service |
6f2e62 |
printf("\nTS: ");
|
|
Packit Service |
6f2e62 |
cp++;
|
|
Packit Service |
6f2e62 |
for (;;) {
|
|
Packit Service |
6f2e62 |
long l;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if ((flags&0xF) != IPOPT_TS_TSONLY) {
|
|
Packit Service |
6f2e62 |
__u32 address;
|
|
Packit Service |
6f2e62 |
memcpy(&address, cp, 4);
|
|
Packit Service |
6f2e62 |
cp += 4;
|
|
Packit Service |
6f2e62 |
if (address == 0)
|
|
Packit Service |
6f2e62 |
printf("\t0.0.0.0");
|
|
Packit Service |
6f2e62 |
else {
|
|
Packit Service |
6f2e62 |
struct sockaddr_in sin = { .sin_family = AF_INET, .sin_addr = { address } };
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("\t%s", pr_addr(&sin, sizeof sin));
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
i -= 4;
|
|
Packit Service |
6f2e62 |
if (i <= 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
l = *cp++;
|
|
Packit Service |
6f2e62 |
l = (l<<8) + *cp++;
|
|
Packit Service |
6f2e62 |
l = (l<<8) + *cp++;
|
|
Packit Service |
6f2e62 |
l = (l<<8) + *cp++;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (l & 0x80000000) {
|
|
Packit Service |
6f2e62 |
if (nonstdtime==0)
|
|
Packit Service |
6f2e62 |
printf("\t%ld absolute not-standard", l&0x7fffffff);
|
|
Packit Service |
6f2e62 |
else
|
|
Packit Service |
6f2e62 |
printf("\t%ld not-standard", (l&0x7fffffff) - nonstdtime);
|
|
Packit Service |
6f2e62 |
nonstdtime = l&0x7fffffff;
|
|
Packit Service |
6f2e62 |
} else {
|
|
Packit Service |
6f2e62 |
if (stdtime==0)
|
|
Packit Service |
6f2e62 |
printf("\t%ld absolute", l);
|
|
Packit Service |
6f2e62 |
else
|
|
Packit Service |
6f2e62 |
printf("\t%ld", l - stdtime);
|
|
Packit Service |
6f2e62 |
stdtime = l;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
i -= 4;
|
|
Packit Service |
6f2e62 |
putchar('\n');
|
|
Packit Service |
6f2e62 |
if (i <= 0)
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
if (flags>>4)
|
|
Packit Service |
6f2e62 |
printf("Unrecorded hops: %d\n", flags>>4);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
default:
|
|
Packit Service |
6f2e62 |
printf("\nunknown option %x", *cp);
|
|
Packit Service |
6f2e62 |
break;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
totlen -= optlen;
|
|
Packit Service |
6f2e62 |
optptr += optlen;
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* pr_iph --
|
|
Packit Service |
6f2e62 |
* Print an IP header with options.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
void pr_iph(struct iphdr *ip)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
int hlen;
|
|
Packit Service |
6f2e62 |
unsigned char *cp;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
hlen = ip->ihl << 2;
|
|
Packit Service |
6f2e62 |
cp = (unsigned char *)ip + 20; /* point to options */
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
printf("Vr HL TOS Len ID Flg off TTL Pro cks Src Dst Data\n");
|
|
Packit Service |
6f2e62 |
printf(" %1x %1x %02x %04x %04x",
|
|
Packit Service |
6f2e62 |
ip->version, ip->ihl, ip->tos, ip->tot_len, ip->id);
|
|
Packit Service |
6f2e62 |
printf(" %1x %04x", ((ip->frag_off) & 0xe000) >> 13,
|
|
Packit Service |
6f2e62 |
(ip->frag_off) & 0x1fff);
|
|
Packit Service |
6f2e62 |
printf(" %02x %02x %04x", ip->ttl, ip->protocol, ip->check);
|
|
Packit Service |
6f2e62 |
printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->saddr));
|
|
Packit Service |
6f2e62 |
printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->daddr));
|
|
Packit Service |
6f2e62 |
printf("\n");
|
|
Packit Service |
6f2e62 |
pr_options(cp, hlen);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/*
|
|
Packit Service |
6f2e62 |
* pr_addr --
|
|
Packit Service |
6f2e62 |
*
|
|
Packit Service |
6f2e62 |
* Return an ascii host address optionally with a hostname.
|
|
Packit Service |
6f2e62 |
*/
|
|
Packit Service |
6f2e62 |
char *
|
|
Packit Service |
6f2e62 |
pr_addr(void *sa, socklen_t salen)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
static char buffer[4096] = "";
|
|
Packit Service |
6f2e62 |
static struct sockaddr_storage last_sa = { 0 };
|
|
Packit Service |
6f2e62 |
static socklen_t last_salen = 0;
|
|
Packit Service |
6f2e62 |
char name[NI_MAXHOST] = "";
|
|
Packit Service |
6f2e62 |
char address[NI_MAXHOST] = "";
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (salen == last_salen && !memcmp(sa, &last_sa, salen))
|
|
Packit Service |
6f2e62 |
return buffer;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
memcpy(&last_sa, sa, (last_salen = salen));
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
in_pr_addr = !setjmp(pr_addr_jmp);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
getnameinfo(sa, salen, address, sizeof address, NULL, 0, getnameinfo_flags | NI_NUMERICHOST);
|
|
Packit Service |
6f2e62 |
if (!exiting && !(options & F_NUMERIC))
|
|
Packit Service |
6f2e62 |
getnameinfo(sa, salen, name, sizeof name, NULL, 0, getnameinfo_flags);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (*name)
|
|
Packit Service |
6f2e62 |
snprintf(buffer, sizeof buffer, "%s (%s)", name, address);
|
|
Packit Service |
6f2e62 |
else
|
|
Packit Service |
6f2e62 |
snprintf(buffer, sizeof buffer, "%s", address);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
in_pr_addr = 0;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
return(buffer);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Set Type of Service (TOS) and other Quality of Service relating bits */
|
|
Packit Service |
6f2e62 |
int parsetos(char *str)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
const char *cp;
|
|
Packit Service |
6f2e62 |
int tos;
|
|
Packit Service |
6f2e62 |
char *ep;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* handle both hex and decimal values */
|
|
Packit Service |
6f2e62 |
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) {
|
|
Packit Service |
6f2e62 |
cp = str + 2;
|
|
Packit Service |
6f2e62 |
tos = (int)strtol(cp, &ep, 16);
|
|
Packit Service |
6f2e62 |
} else
|
|
Packit Service |
6f2e62 |
tos = (int)strtol(str, &ep, 10);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* doesn't look like decimal or hex, eh? */
|
|
Packit Service |
6f2e62 |
if (*ep != '\0') {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: \"%s\" bad value for TOS\n", str);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (tos > TOS_MAX) {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: the decimal value of TOS bits must be in range 0-255\n");
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
return(tos);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
int parseflow(char *str)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
const char *cp;
|
|
Packit Service |
6f2e62 |
unsigned long val;
|
|
Packit Service |
6f2e62 |
char *ep;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* handle both hex and decimal values */
|
|
Packit Service |
6f2e62 |
if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) {
|
|
Packit Service |
6f2e62 |
cp = str + 2;
|
|
Packit Service |
6f2e62 |
val = (int)strtoul(cp, &ep, 16);
|
|
Packit Service |
6f2e62 |
} else
|
|
Packit Service |
6f2e62 |
val = (int)strtoul(str, &ep, 10);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* doesn't look like decimal or hex, eh? */
|
|
Packit Service |
6f2e62 |
if (*ep != '\0') {
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: \"%s\" bad value for flowinfo\n", str);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (val & ~IPV6_FLOWINFO_FLOWLABEL) { /* Flow is 20 bit value */
|
|
Packit Service |
6f2e62 |
fprintf(stderr, "ping: \"%s\" value is greater than 20 bits.\n", str);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
return(val);
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
void ping4_install_filter(socket_st *sock)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
static int once;
|
|
Packit Service |
6f2e62 |
static struct sock_filter insns[] = {
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_LDX|BPF_B|BPF_MSH, 0), /* Skip IP header. F..g BSD... Look into ping6. */
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_LD|BPF_H|BPF_IND, 4), /* Load icmp echo ident */
|
|
Packit Service |
6f2e62 |
BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, 0xAAAA, 0, 1), /* Ours? */
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_RET|BPF_K, ~0U), /* Yes, it passes. */
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_LD|BPF_B|BPF_IND, 0), /* Load icmp type */
|
|
Packit Service |
6f2e62 |
BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, ICMP_ECHOREPLY, 1, 0), /* Echo? */
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_RET|BPF_K, 0xFFFFFFF), /* No. It passes. */
|
|
Packit Service |
6f2e62 |
BPF_STMT(BPF_RET|BPF_K, 0) /* Echo with wrong ident. Reject. */
|
|
Packit Service |
6f2e62 |
};
|
|
Packit Service |
6f2e62 |
static struct sock_fprog filter = {
|
|
Packit Service |
6f2e62 |
sizeof insns / sizeof(insns[0]),
|
|
Packit Service |
6f2e62 |
insns
|
|
Packit Service |
6f2e62 |
};
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (once)
|
|
Packit Service |
6f2e62 |
return;
|
|
Packit Service |
6f2e62 |
once = 1;
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
/* Patch bpflet for current identifier. */
|
|
Packit Service |
6f2e62 |
insns[2] = (struct sock_filter)BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, htons(ident), 0, 1);
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
if (setsockopt(sock->fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)))
|
|
Packit Service |
6f2e62 |
perror("WARNING: failed to install socket filter\n");
|
|
Packit Service |
6f2e62 |
}
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
#define USAGE_NEWLINE "\n "
|
|
Packit Service |
6f2e62 |
|
|
Packit Service |
6f2e62 |
void usage(void)
|
|
Packit Service |
6f2e62 |
{
|
|
Packit Service |
6f2e62 |
fprintf(stderr,
|
|
Packit Service |
6f2e62 |
"Usage: ping"
|
|
Packit Service |
6f2e62 |
" [-"
|
|
Packit Service |
6f2e62 |
"aAbBdDfhLnOqrRUvV64"
|
|
Packit Service |
6f2e62 |
"]"
|
|
Packit Service |
6f2e62 |
" [-c count]"
|
|
Packit Service |
6f2e62 |
" [-i interval]"
|
|
Packit Service |
6f2e62 |
" [-I interface]"
|
|
Packit Service |
6f2e62 |
USAGE_NEWLINE
|
|
Packit Service |
6f2e62 |
" [-m mark]"
|
|
Packit Service |
6f2e62 |
" [-M pmtudisc_option]"
|
|
Packit Service |
6f2e62 |
" [-l preload]"
|
|
Packit Service |
6f2e62 |
" [-p pattern]"
|
|
Packit Service |
6f2e62 |
" [-Q tos]"
|
|
Packit Service |
6f2e62 |
USAGE_NEWLINE
|
|
Packit Service |
6f2e62 |
" [-s packetsize]"
|
|
Packit Service |
6f2e62 |
" [-S sndbuf]"
|
|
Packit Service |
6f2e62 |
" [-t ttl]"
|
|
Packit Service |
6f2e62 |
" [-T timestamp_option]"
|
|
Packit Service |
6f2e62 |
USAGE_NEWLINE
|
|
Packit Service |
6f2e62 |
" [-w deadline]"
|
|
Packit Service |
6f2e62 |
" [-W timeout]"
|
|
Packit Service |
6f2e62 |
" [hop1 ...] destination"
|
|
Packit Service |
6f2e62 |
"\n"
|
|
Packit Service |
6f2e62 |
);
|
|
Packit Service |
6f2e62 |
ping6_usage(1);
|
|
Packit Service |
6f2e62 |
exit(2);
|
|
Packit Service |
6f2e62 |
}
|