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-rw-r--r--networking/ping6.c471
1 files changed, 0 insertions, 471 deletions
diff --git a/networking/ping6.c b/networking/ping6.c
deleted file mode 100644
index b67fab5..0000000
--- a/networking/ping6.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Mini ping implementation for busybox
- *
- * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
- *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
- *
- * This version of ping is adapted from the ping in netkit-base 0.10,
- * which is:
- *
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Muuss.
- *
- * Original copyright notice is retained at the end of this file.
- *
- * This version is an adaptation of ping.c from busybox.
- * The code was modified by Bart Visscher <magick@linux-fan.com>
- */
-
-#include <netinet/icmp6.h>
-#include <net/if.h>
-#include "busybox.h"
-
-/* I see RENUMBERED constants in bits/in.h - !!?
- * What a fuck is going on with libc? Is it a glibc joke? */
-#ifdef IPV6_2292HOPLIMIT
-#undef IPV6_HOPLIMIT
-#define IPV6_HOPLIMIT IPV6_2292HOPLIMIT
-#endif
-
-enum {
- DEFDATALEN = 56,
- MAXIPLEN = 60,
- MAXICMPLEN = 76,
- MAXPACKET = 65468,
- MAX_DUP_CHK = (8 * 128),
- MAXWAIT = 10,
- PINGINTERVAL = 1 /* second */
-};
-
-static void ping(const char *host);
-
-#ifndef CONFIG_FEATURE_FANCY_PING6
-
-/* simple version */
-
-static const char *hostname;
-
-static void noresp(int ign)
-{
- printf("No response from %s\n", hostname);
- exit(EXIT_FAILURE);
-}
-
-static void ping(const char *host)
-{
- len_and_sockaddr *lsa;
- struct sockaddr_in6 pingaddr;
- struct icmp6_hdr *pkt;
- int pingsock, c;
- int sockopt;
- char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
-
- hostname = host;
-
- pingsock = create_icmp6_socket();
-
- lsa = host_and_af2sockaddr(host, 0, AF_INET6);
- pingaddr = lsa->sin6;
-
- pkt = (struct icmp6_hdr *) packet;
- memset(pkt, 0, sizeof(packet));
- pkt->icmp6_type = ICMP6_ECHO_REQUEST;
-
- sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
- setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
-
- c = sendto(pingsock, packet, DEFDATALEN + sizeof (struct icmp6_hdr), 0,
- (struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in6));
-
- if (c < 0) {
- if (ENABLE_FEATURE_CLEAN_UP) close(pingsock);
- bb_perror_msg_and_die("sendto");
- }
-
- signal(SIGALRM, noresp);
- alarm(5); /* give the host 5000ms to respond */
- /* listen for replies */
- while (1) {
- struct sockaddr_in6 from;
- socklen_t fromlen = sizeof(from);
-
- c = recvfrom(pingsock, packet, sizeof(packet), 0,
- (struct sockaddr *) &from, &fromlen);
- if (c < 0) {
- if (errno != EINTR)
- bb_perror_msg("recvfrom");
- continue;
- }
- if (c >= 8) { /* icmp6_hdr */
- pkt = (struct icmp6_hdr *) packet;
- if (pkt->icmp6_type == ICMP6_ECHO_REPLY)
- break;
- }
- }
- if (ENABLE_FEATURE_CLEAN_UP)
- close(pingsock);
- printf("%s is alive!\n", hostname);
-}
-
-int ping6_main(int argc, char **argv)
-{
- argc--;
- argv++;
- if (argc < 1)
- bb_show_usage();
- ping(*argv);
- return EXIT_SUCCESS;
-}
-
-#else /* ! CONFIG_FEATURE_FANCY_PING6 */
-
-/* full(er) version */
-
-#define OPT_STRING "qvc:s:I:"
-enum {
- OPT_QUIET = 1 << 0,
- OPT_VERBOSE = 1 << 1,
-};
-
-static struct sockaddr_in6 pingaddr;
-static int pingsock = -1;
-static unsigned datalen; /* intentionally uninitialized to work around gcc bug */
-static int if_index;
-
-static unsigned long ntransmitted, nreceived, nrepeats, pingcount;
-static int myid;
-static unsigned long tmin = ULONG_MAX, tmax, tsum;
-static char rcvd_tbl[MAX_DUP_CHK / 8];
-
-static char *hostname;
-
-static void sendping(int);
-static void pingstats(int);
-static void unpack(char *, int, struct sockaddr_in6 *, int);
-
-#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
-#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
-#define SET(bit) (A(bit) |= B(bit))
-#define CLR(bit) (A(bit) &= (~B(bit)))
-#define TST(bit) (A(bit) & B(bit))
-
-/**************************************************************************/
-
-static void pingstats(int junk)
-{
- int status;
-
- signal(SIGINT, SIG_IGN);
-
- printf("\n--- %s ping statistics ---\n", hostname);
- printf("%lu packets transmitted, ", ntransmitted);
- printf("%lu packets received, ", nreceived);
- if (nrepeats)
- printf("%lu duplicates, ", nrepeats);
- if (ntransmitted)
- printf("%lu%% packet loss\n",
- (ntransmitted - nreceived) * 100 / ntransmitted);
- if (nreceived)
- printf("round-trip min/avg/max = %lu.%lu/%lu.%lu/%lu.%lu ms\n",
- tmin / 10, tmin % 10,
- (tsum / (nreceived + nrepeats)) / 10,
- (tsum / (nreceived + nrepeats)) % 10, tmax / 10, tmax % 10);
- if (nreceived != 0)
- status = EXIT_SUCCESS;
- else
- status = EXIT_FAILURE;
- exit(status);
-}
-
-static void sendping(int junk)
-{
- struct icmp6_hdr *pkt;
- int i;
- char packet[datalen + sizeof (struct icmp6_hdr)];
-
- pkt = (struct icmp6_hdr *) packet;
-
- pkt->icmp6_type = ICMP6_ECHO_REQUEST;
- pkt->icmp6_code = 0;
- pkt->icmp6_cksum = 0;
- pkt->icmp6_seq = htons(ntransmitted); /* don't ++ here, it can be a macro */
- pkt->icmp6_id = myid;
- CLR((uint16_t)ntransmitted % MAX_DUP_CHK);
- ntransmitted++;
-
- gettimeofday((struct timeval *) &pkt->icmp6_data8[4], NULL);
-
- i = sendto(pingsock, packet, sizeof(packet), 0,
- (struct sockaddr *) &pingaddr, sizeof(struct sockaddr_in6));
-
- if (i < 0)
- bb_perror_msg_and_die("sendto");
- if ((size_t)i != sizeof(packet))
- bb_error_msg_and_die("ping wrote %d chars; %d expected", i,
- (int)sizeof(packet));
-
- signal(SIGALRM, sendping);
- if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next in 1s */
- alarm(PINGINTERVAL);
- } else { /* done, wait for the last ping to come back */
- /* todo, don't necessarily need to wait so long... */
- signal(SIGALRM, pingstats);
- alarm(MAXWAIT);
- }
-}
-
-/* RFC3542 changed some definitions from RFC2292 for no good reason, whee!
- * the newer 3542 uses a MLD_ prefix where as 2292 uses ICMP6_ prefix */
-#ifndef MLD_LISTENER_QUERY
-# define MLD_LISTENER_QUERY ICMP6_MEMBERSHIP_QUERY
-#endif
-#ifndef MLD_LISTENER_REPORT
-# define MLD_LISTENER_REPORT ICMP6_MEMBERSHIP_REPORT
-#endif
-#ifndef MLD_LISTENER_REDUCTION
-# define MLD_LISTENER_REDUCTION ICMP6_MEMBERSHIP_REDUCTION
-#endif
-static char *icmp6_type_name(int id)
-{
- switch (id) {
- case ICMP6_DST_UNREACH: return "Destination Unreachable";
- case ICMP6_PACKET_TOO_BIG: return "Packet too big";
- case ICMP6_TIME_EXCEEDED: return "Time Exceeded";
- case ICMP6_PARAM_PROB: return "Parameter Problem";
- case ICMP6_ECHO_REPLY: return "Echo Reply";
- case ICMP6_ECHO_REQUEST: return "Echo Request";
- case MLD_LISTENER_QUERY: return "Listener Query";
- case MLD_LISTENER_REPORT: return "Listener Report";
- case MLD_LISTENER_REDUCTION: return "Listener Reduction";
- default: return "unknown ICMP type";
- }
-}
-
-static void unpack(char *packet, int sz, struct sockaddr_in6 *from, int hoplimit)
-{
- struct icmp6_hdr *icmppkt;
- struct timeval tv, *tp;
- int dupflag;
- unsigned long triptime;
- char buf[INET6_ADDRSTRLEN];
-
- gettimeofday(&tv, NULL);
-
- /* discard if too short */
- if (sz < (datalen + sizeof(struct icmp6_hdr)))
- return;
-
- icmppkt = (struct icmp6_hdr *) packet;
- if (icmppkt->icmp6_id != myid)
- return; /* not our ping */
-
- if (icmppkt->icmp6_type == ICMP6_ECHO_REPLY) {
- uint16_t recv_seq = ntohs(icmppkt->icmp6_seq);
- ++nreceived;
- tp = (struct timeval *) &icmppkt->icmp6_data8[4];
-
- if ((tv.tv_usec -= tp->tv_usec) < 0) {
- --tv.tv_sec;
- tv.tv_usec += 1000000;
- }
- tv.tv_sec -= tp->tv_sec;
-
- triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100);
- tsum += triptime;
- if (triptime < tmin)
- tmin = triptime;
- if (triptime > tmax)
- tmax = triptime;
-
- if (TST(recv_seq % MAX_DUP_CHK)) {
- ++nrepeats;
- --nreceived;
- dupflag = 1;
- } else {
- SET(recv_seq % MAX_DUP_CHK);
- dupflag = 0;
- }
-
- if (option_mask32 & OPT_QUIET)
- return;
-
- printf("%d bytes from %s: icmp6_seq=%u", sz,
- inet_ntop(AF_INET6, &pingaddr.sin6_addr,
- buf, sizeof(buf)),
- recv_seq);
- printf(" ttl=%d time=%lu.%lu ms", hoplimit,
- triptime / 10, triptime % 10);
- if (dupflag)
- printf(" (DUP!)");
- puts("");
- } else {
- if (icmppkt->icmp6_type != ICMP6_ECHO_REQUEST)
- bb_error_msg("warning: got ICMP %d (%s)",
- icmppkt->icmp6_type,
- icmp6_type_name(icmppkt->icmp6_type));
- }
- fflush(stdout);
-}
-
-extern int BUG_bad_offsetof_icmp6_cksum(void);
-static void ping(const char *host)
-{
- len_and_sockaddr *lsa;
- char packet[datalen + MAXIPLEN + MAXICMPLEN];
- char buf[INET6_ADDRSTRLEN];
- int sockopt;
- struct msghdr msg;
- struct sockaddr_in6 from;
- struct iovec iov;
- char control_buf[CMSG_SPACE(36)];
-
- pingsock = create_icmp6_socket();
-
- lsa = host_and_af2sockaddr(host, 0, AF_INET6);
- hostname = xmalloc_sockaddr2host_noport(&lsa->sa, lsa->len);
- pingaddr = lsa->sin6;
-
-#ifdef ICMP6_FILTER
- {
- struct icmp6_filter filt;
- if (!(option_mask32 & OPT_VERBOSE)) {
- ICMP6_FILTER_SETBLOCKALL(&filt);
- ICMP6_FILTER_SETPASS(ICMP6_ECHO_REPLY, &filt);
- } else {
- ICMP6_FILTER_SETPASSALL(&filt);
- }
- if (setsockopt(pingsock, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
- sizeof(filt)) < 0)
- bb_error_msg_and_die("setsockopt(ICMP6_FILTER)");
- }
-#endif /*ICMP6_FILTER*/
-
- /* enable broadcast pings */
- setsockopt_broadcast(pingsock);
-
- /* set recv buf for broadcast pings */
- sockopt = 48 * 1024; /* explain why 48k? */
- setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
-
- sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
- if (offsetof(struct icmp6_hdr, icmp6_cksum) != 2)
- BUG_bad_offsetof_icmp6_cksum();
- setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
-
- /* request ttl info to be returned in ancillary data */
- setsockopt(pingsock, SOL_IPV6, IPV6_HOPLIMIT, &const_int_1, sizeof(const_int_1));
-
- if (if_index)
- pingaddr.sin6_scope_id = if_index;
-
- printf("PING %s (%s): %d data bytes\n",
- hostname,
- inet_ntop(AF_INET6, &pingaddr.sin6_addr,
- buf, sizeof(buf)),
- datalen);
-
- signal(SIGINT, pingstats);
-
- /* start the ping's going ... */
- sendping(0);
-
- /* listen for replies */
- msg.msg_name = &from;
- msg.msg_namelen = sizeof(from);
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
- msg.msg_control = control_buf;
- iov.iov_base = packet;
- iov.iov_len = sizeof(packet);
- while (1) {
- int c;
- struct cmsghdr *mp;
- int hoplimit = -1;
- msg.msg_controllen = sizeof(control_buf);
-
- c = recvmsg(pingsock, &msg, 0);
- if (c < 0) {
- if (errno != EINTR)
- bb_perror_msg("recvfrom");
- continue;
- }
- for (mp = CMSG_FIRSTHDR(&msg); mp; mp = CMSG_NXTHDR(&msg, mp)) {
- if (mp->cmsg_level == SOL_IPV6
- && mp->cmsg_type == IPV6_HOPLIMIT
- /* don't check len - we trust the kernel: */
- /* && mp->cmsg_len >= CMSG_LEN(sizeof(int)) */
- ) {
- hoplimit = *(int*)CMSG_DATA(mp);
- }
- }
- unpack(packet, c, &from, hoplimit);
- if (pingcount > 0 && nreceived >= pingcount)
- break;
- }
- pingstats(0);
-}
-
-int ping6_main(int argc, char **argv)
-{
- char *opt_c, *opt_s, *opt_I;
-
- datalen = DEFDATALEN; /* initialized here rather than in global scope to work around gcc bug */
-
- /* exactly one argument needed, -v and -q don't mix */
- opt_complementary = "=1:q--v:v--q";
- getopt32(argc, argv, OPT_STRING, &opt_c, &opt_s, &opt_I);
- if (option_mask32 & 4) pingcount = xatoul(opt_c); // -c
- if (option_mask32 & 8) datalen = xatou16(opt_s); // -s
- if (option_mask32 & 0x10) { // -I
- if_index = if_nametoindex(opt_I);
- if (!if_index)
- bb_error_msg_and_die(
- "%s: invalid interface name", opt_I);
- }
-
- myid = (int16_t) getpid();
- ping(argv[optind]);
- return EXIT_SUCCESS;
-}
-#endif /* ! CONFIG_FEATURE_FANCY_PING6 */
-
-/*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Mike Muuss.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
- * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
- *
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
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