#include <net/if.h>
#include <netinet/ip_icmp.h>
#include "libbb.h"
+#include "common_bufsiz.h"
#ifdef __BIONIC__
/* should be in netinet/ip_icmp.h */
//config:config PING6
//config: bool "ping6"
//config: default y
-//config: depends on FEATURE_IPV6 && PING
+//config: depends on FEATURE_IPV6
//config: help
//config: This will give you a ping that can talk IPv6.
//config:
//config:config FEATURE_FANCY_PING
//config: bool "Enable fancy ping output"
//config: default y
-//config: depends on PING
+//config: depends on PING || PING6
//config: help
//config: Make the output from the ping applet include statistics, and at the
//config: same time provide full support for ICMP packets.
//usage: "[OPTIONS] HOST"
//usage:# define ping_full_usage "\n\n"
//usage: "Send ICMP ECHO_REQUEST packets to network hosts\n"
+//usage: IF_PING6(
//usage: "\n -4,-6 Force IP or IPv6 name resolution"
+//usage: )
//usage: "\n -c CNT Send only CNT pings"
//usage: "\n -s SIZE Send SIZE data bytes in packets (default:56)"
//usage: "\n -t TTL Set TTL"
//usage: "\n (after all -c CNT packets are sent)"
//usage: "\n -w SEC Seconds until ping exits (default:infinite)"
//usage: "\n (can exit earlier with -c CNT)"
-//usage: "\n -q Quiet, only displays output at start"
+//usage: "\n -q Quiet, only display output at start"
//usage: "\n and when finished"
+//usage: "\n -p Pattern to use for payload"
//usage:
//usage:# define ping6_trivial_usage
//usage: "[OPTIONS] HOST"
//usage: "\n -c CNT Send only CNT pings"
//usage: "\n -s SIZE Send SIZE data bytes in packets (default:56)"
//usage: "\n -I IFACE/IP Use interface or IP address as source"
-//usage: "\n -q Quiet, only displays output at start"
+//usage: "\n -q Quiet, only display output at start"
//usage: "\n and when finished"
+//usage: "\n -p Pattern to use for payload"
//usage:
//usage:#endif
//usage:
MAX_DUP_CHK = (8 * 128),
MAXWAIT = 10,
PINGINTERVAL = 1, /* 1 second */
+ pingsock = 0,
};
+static void
+#if ENABLE_PING6
+create_icmp_socket(len_and_sockaddr *lsa)
+#else
+create_icmp_socket(void)
+#define create_icmp_socket(lsa) create_icmp_socket()
+#endif
+{
+ int sock;
+#if ENABLE_PING6
+ if (lsa->u.sa.sa_family == AF_INET6)
+ sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
+ else
+#endif
+ sock = socket(AF_INET, SOCK_RAW, 1); /* 1 == ICMP */
+ if (sock < 0) {
+ if (errno == EPERM)
+ bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
+ bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
+ }
+
+ xmove_fd(sock, pingsock);
+}
+
#if !ENABLE_FEATURE_FANCY_PING
/* Simple version */
struct globals {
char *hostname;
char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
+ uint16_t myid;
} FIX_ALIASING;
-#define G (*(struct globals*)&bb_common_bufsiz1)
-#define INIT_G() do { } while (0)
+#define G (*(struct globals*)bb_common_bufsiz1)
+#define INIT_G() do { setup_common_bufsiz(); } while (0)
static void noresp(int ign UNUSED_PARAM)
{
static void ping4(len_and_sockaddr *lsa)
{
struct icmp *pkt;
- int pingsock, c;
-
- pingsock = create_icmp_socket();
+ int c;
pkt = (struct icmp *) G.packet;
- memset(pkt, 0, sizeof(G.packet));
+ /*memset(pkt, 0, sizeof(G.packet)); already is */
pkt->icmp_type = ICMP_ECHO;
+ pkt->icmp_id = G.myid;
pkt->icmp_cksum = inet_cksum((uint16_t *) pkt, sizeof(G.packet));
xsendto(pingsock, G.packet, DEFDATALEN + ICMP_MINLEN, &lsa->u.sa, lsa->len);
/* listen for replies */
while (1) {
+#if 0
struct sockaddr_in from;
socklen_t fromlen = sizeof(from);
c = recvfrom(pingsock, G.packet, sizeof(G.packet), 0,
(struct sockaddr *) &from, &fromlen);
+#else
+ c = recv(pingsock, G.packet, sizeof(G.packet), 0);
+#endif
if (c < 0) {
if (errno != EINTR)
bb_perror_msg("recvfrom");
struct iphdr *iphdr = (struct iphdr *) G.packet;
pkt = (struct icmp *) (G.packet + (iphdr->ihl << 2)); /* skip ip hdr */
+ if (pkt->icmp_id != G.myid)
+ continue; /* not our ping */
if (pkt->icmp_type == ICMP_ECHOREPLY)
break;
}
static void ping6(len_and_sockaddr *lsa)
{
struct icmp6_hdr *pkt;
- int pingsock, c;
+ int c;
int sockopt;
- pingsock = create_icmp6_socket();
-
pkt = (struct icmp6_hdr *) G.packet;
- memset(pkt, 0, sizeof(G.packet));
+ /*memset(pkt, 0, sizeof(G.packet)); already is */
pkt->icmp6_type = ICMP6_ECHO_REQUEST;
+ pkt->icmp6_id = G.myid;
sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
- setsockopt(pingsock, SOL_RAW, IPV6_CHECKSUM, &sockopt, sizeof(sockopt));
+ setsockopt_int(pingsock, SOL_RAW, IPV6_CHECKSUM, sockopt);
xsendto(pingsock, G.packet, DEFDATALEN + sizeof(struct icmp6_hdr), &lsa->u.sa, lsa->len);
/* listen for replies */
while (1) {
+#if 0
struct sockaddr_in6 from;
socklen_t fromlen = sizeof(from);
c = recvfrom(pingsock, G.packet, sizeof(G.packet), 0,
(struct sockaddr *) &from, &fromlen);
+#else
+ c = recv(pingsock, G.packet, sizeof(G.packet), 0);
+#endif
if (c < 0) {
if (errno != EINTR)
bb_perror_msg("recvfrom");
continue;
}
- if (c >= ICMP_MINLEN) { /* icmp6_hdr */
- pkt = (struct icmp6_hdr *) G.packet;
+ if (c >= ICMP_MINLEN) { /* icmp6_hdr */
+ if (pkt->icmp6_id != G.myid)
+ continue; /* not our ping */
if (pkt->icmp6_type == ICMP6_ECHO_REPLY)
break;
}
signal(SIGALRM, noresp);
alarm(5); /* give the host 5000ms to respond */
+ create_icmp_socket(lsa);
+ G.myid = (uint16_t) getpid();
#if ENABLE_PING6
if (lsa->u.sa.sa_family == AF_INET6)
ping6(lsa);
/* Full(er) version */
-#define OPT_STRING ("qvc:s:t:w:W:I:4" IF_PING6("6"))
+#define OPT_STRING ("qvc:+s:t:+w:+W:+I:np:4" IF_PING6("6"))
enum {
OPT_QUIET = 1 << 0,
OPT_VERBOSE = 1 << 1,
OPT_w = 1 << 5,
OPT_W = 1 << 6,
OPT_I = 1 << 7,
- OPT_IPV4 = 1 << 8,
- OPT_IPV6 = (1 << 9) * ENABLE_PING6,
+ /*OPT_n = 1 << 8, - ignored */
+ OPT_p = 1 << 9,
+ OPT_IPV4 = 1 << 10,
+ OPT_IPV6 = (1 << 11) * ENABLE_PING6,
};
struct globals {
- int pingsock;
int if_index;
char *str_I;
len_and_sockaddr *source_lsa;
unsigned opt_ttl;
unsigned long ntransmitted, nreceived, nrepeats;
uint16_t myid;
+ uint8_t pattern;
unsigned tmin, tmax; /* in us */
unsigned long long tsum; /* in us, sum of all times */
unsigned deadline;
struct sockaddr_in6 sin6;
#endif
} pingaddr;
- char rcvd_tbl[MAX_DUP_CHK / 8];
+ unsigned char rcvd_tbl[MAX_DUP_CHK / 8];
} FIX_ALIASING;
-#define G (*(struct globals*)&bb_common_bufsiz1)
-#define pingsock (G.pingsock )
+#define G (*(struct globals*)bb_common_bufsiz1)
#define if_index (G.if_index )
#define source_lsa (G.source_lsa )
#define str_I (G.str_I )
#define datalen (G.datalen )
-#define ntransmitted (G.ntransmitted)
-#define nreceived (G.nreceived )
-#define nrepeats (G.nrepeats )
#define pingcount (G.pingcount )
#define opt_ttl (G.opt_ttl )
#define myid (G.myid )
#define dotted (G.dotted )
#define pingaddr (G.pingaddr )
#define rcvd_tbl (G.rcvd_tbl )
-void BUG_ping_globals_too_big(void);
#define INIT_G() do { \
- if (sizeof(G) > COMMON_BUFSIZE) \
- BUG_ping_globals_too_big(); \
- pingsock = -1; \
+ setup_common_bufsiz(); \
+ BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
datalen = DEFDATALEN; \
timeout = MAXWAIT; \
tmin = UINT_MAX; \
} while (0)
-#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))
-
-/**************************************************************************/
+#define BYTE(bit) rcvd_tbl[(bit)>>3]
+#define MASK(bit) (1 << ((bit) & 7))
+#define SET(bit) (BYTE(bit) |= MASK(bit))
+#define CLR(bit) (BYTE(bit) &= (~MASK(bit)))
+#define TST(bit) (BYTE(bit) & MASK(bit))
static void print_stats_and_exit(int junk) NORETURN;
static void print_stats_and_exit(int junk UNUSED_PARAM)
{
+ unsigned long ul;
+ unsigned long nrecv;
+
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)
- ntransmitted = (ntransmitted - nreceived) * 100 / ntransmitted;
- printf("%lu%% packet loss\n", ntransmitted);
+ nrecv = G.nreceived;
+ printf("\n--- %s ping statistics ---\n"
+ "%lu packets transmitted, "
+ "%lu packets received, ",
+ hostname, G.ntransmitted, nrecv
+ );
+ if (G.nrepeats)
+ printf("%lu duplicates, ", G.nrepeats);
+ ul = G.ntransmitted;
+ if (ul != 0)
+ ul = (ul - nrecv) * 100 / ul;
+ printf("%lu%% packet loss\n", ul);
if (tmin != UINT_MAX) {
- unsigned tavg = tsum / (nreceived + nrepeats);
+ unsigned tavg = tsum / (nrecv + G.nrepeats);
printf("round-trip min/avg/max = %u.%03u/%u.%03u/%u.%03u ms\n",
tmin / 1000, tmin % 1000,
tavg / 1000, tavg % 1000,
tmax / 1000, tmax % 1000);
}
/* if condition is true, exit with 1 -- 'failure' */
- exit(nreceived == 0 || (deadline && nreceived < pingcount));
+ exit(nrecv == 0 || (deadline && nrecv < pingcount));
}
static void sendping_tail(void (*sp)(int), int size_pkt)
{
int sz;
- CLR((uint16_t)ntransmitted % MAX_DUP_CHK);
- ntransmitted++;
+ CLR((uint16_t)G.ntransmitted % MAX_DUP_CHK);
+ G.ntransmitted++;
size_pkt += datalen;
if (sz != size_pkt)
bb_error_msg_and_die(bb_msg_write_error);
- if (pingcount == 0 || deadline || ntransmitted < pingcount) {
+ if (pingcount == 0 || deadline || G.ntransmitted < pingcount) {
/* Didn't send all pings yet - schedule next in 1s */
signal(SIGALRM, sp);
if (deadline) {
* otherwise ping waits for two RTTs. */
unsigned expire = timeout;
- if (nreceived) {
+ if (G.nreceived) {
/* approx. 2*tmax, in seconds (2 RTT) */
expire = tmax / (512*1024);
if (expire == 0)
{
struct icmp *pkt = G.snd_packet;
- //memset(pkt, 0, datalen + ICMP_MINLEN + 4); - G.snd_packet was xzalloced
+ memset(pkt, G.pattern, datalen + ICMP_MINLEN + 4);
pkt->icmp_type = ICMP_ECHO;
/*pkt->icmp_code = 0;*/
pkt->icmp_cksum = 0; /* cksum is calculated with this field set to 0 */
- pkt->icmp_seq = htons(ntransmitted); /* don't ++ here, it can be a macro */
+ pkt->icmp_seq = htons(G.ntransmitted); /* don't ++ here, it can be a macro */
pkt->icmp_id = myid;
/* If datalen < 4, we store timestamp _past_ the packet,
{
struct icmp6_hdr *pkt = G.snd_packet;
- //memset(pkt, 0, datalen + sizeof(struct icmp6_hdr) + 4);
+ memset(pkt, G.pattern, datalen + sizeof(struct icmp6_hdr) + 4);
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_seq = htons(G.ntransmitted); /* don't ++ here, it can be a macro */
pkt->icmp6_id = myid;
/*if (datalen >= 4)*/
- *(uint32_t*)(&pkt->icmp6_data8[4]) = monotonic_us();
+ *(bb__aliased_uint32_t*)(&pkt->icmp6_data8[4]) = monotonic_us();
//TODO? pkt->icmp_cksum = inet_cksum(...);
const char *from_str,
uint16_t recv_seq, int ttl)
{
+ unsigned char *b, m;
const char *dupmsg = " (DUP!)";
unsigned triptime = triptime; /* for gcc */
- ++nreceived;
-
if (tp) {
/* (int32_t) cast is for hypothetical 64-bit unsigned */
/* (doesn't hurt 32-bit real-world anyway) */
tmax = triptime;
}
- if (TST(recv_seq % MAX_DUP_CHK)) {
- ++nrepeats;
- --nreceived;
+ b = &BYTE(recv_seq % MAX_DUP_CHK);
+ m = MASK(recv_seq % MAX_DUP_CHK);
+ /*if TST(recv_seq % MAX_DUP_CHK):*/
+ if (*b & m) {
+ ++G.nrepeats;
} else {
- SET(recv_seq % MAX_DUP_CHK);
+ /*SET(recv_seq % MAX_DUP_CHK):*/
+ *b |= m;
+ ++G.nreceived;
dupmsg += 7;
}
{
int sockopt;
- pingsock = create_icmp_socket();
pingaddr.sin = lsa->u.sin;
if (source_lsa) {
if (setsockopt(pingsock, IPPROTO_IP, IP_MULTICAST_IF,
bb_error_msg_and_die("can't set multicast source interface");
xbind(pingsock, &source_lsa->u.sa, source_lsa->len);
}
- if (str_I)
- setsockopt_bindtodevice(pingsock, str_I);
/* enable broadcast pings */
setsockopt_broadcast(pingsock);
/* set recv buf (needed if we can get lots of responses: flood ping,
* broadcast ping etc) */
sockopt = (datalen * 2) + 7 * 1024; /* giving it a bit of extra room */
- setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
+ setsockopt_SOL_SOCKET_int(pingsock, SO_RCVBUF, sockopt);
if (opt_ttl != 0) {
- setsockopt(pingsock, IPPROTO_IP, IP_TTL, &opt_ttl, sizeof(opt_ttl));
+ setsockopt_int(pingsock, IPPROTO_IP, IP_TTL, opt_ttl);
/* above doesnt affect packets sent to bcast IP, so... */
- setsockopt(pingsock, IPPROTO_IP, IP_MULTICAST_TTL, &opt_ttl, sizeof(opt_ttl));
+ setsockopt_int(pingsock, IPPROTO_IP, IP_MULTICAST_TTL, opt_ttl);
}
signal(SIGINT, print_stats_and_exit);
continue;
}
unpack4(G.rcv_packet, c, &from);
- if (pingcount && nreceived >= pingcount)
+ if (pingcount && G.nreceived >= pingcount)
break;
}
}
#if ENABLE_PING6
-extern int BUG_bad_offsetof_icmp6_cksum(void);
static void ping6(len_and_sockaddr *lsa)
{
int sockopt;
struct iovec iov;
char control_buf[CMSG_SPACE(36)];
- pingsock = create_icmp6_socket();
pingaddr.sin6 = lsa->u.sin6;
- /* untested whether "-I addr" really works for IPv6: */
if (source_lsa)
xbind(pingsock, &source_lsa->u.sa, source_lsa->len);
- if (str_I)
- setsockopt_bindtodevice(pingsock, str_I);
#ifdef ICMP6_FILTER
{
ICMP6_FILTER_SETPASSALL(&filt);
}
if (setsockopt(pingsock, IPPROTO_ICMPV6, ICMP6_FILTER, &filt,
- sizeof(filt)) < 0)
- bb_error_msg_and_die("setsockopt(ICMP6_FILTER)");
+ sizeof(filt)) < 0)
+ bb_error_msg_and_die("setsockopt(%s)", "ICMP6_FILTER");
}
#endif /*ICMP6_FILTER*/
/* set recv buf (needed if we can get lots of responses: flood ping,
* broadcast ping etc) */
sockopt = (datalen * 2) + 7 * 1024; /* giving it a bit of extra room */
- setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
+ setsockopt_SOL_SOCKET_int(pingsock, SO_RCVBUF, 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));
+ BUILD_BUG_ON(offsetof(struct icmp6_hdr, icmp6_cksum) != 2);
+ setsockopt_int(pingsock, SOL_RAW, IPV6_CHECKSUM, sockopt);
/* request ttl info to be returned in ancillary data */
- setsockopt(pingsock, SOL_IPV6, IPV6_HOPLIMIT, &const_int_1, sizeof(const_int_1));
+ setsockopt_1(pingsock, SOL_IPV6, IPV6_HOPLIMIT);
if (if_index)
pingaddr.sin6.sin6_scope_id = if_index;
}
}
unpack6(G.rcv_packet, c, &from, hoplimit);
- if (pingcount && nreceived >= pingcount)
+ if (pingcount && G.nreceived >= pingcount)
break;
}
}
}
printf(": %d data bytes\n", datalen);
+ create_icmp_socket(lsa);
+ /* untested whether "-I addr" really works for IPv6: */
+ if (str_I)
+ setsockopt_bindtodevice(pingsock, str_I);
+
G.sizeof_rcv_packet = datalen + MAXIPLEN + MAXICMPLEN;
G.rcv_packet = xzalloc(G.sizeof_rcv_packet);
#if ENABLE_PING6
static int common_ping_main(int opt, char **argv)
{
len_and_sockaddr *lsa;
- char *str_s;
+ char *str_s, *str_p;
INIT_G();
/* exactly one argument needed; -v and -q don't mix; -c NUM, -t NUM, -w NUM, -W NUM */
- opt_complementary = "=1:q--v:v--q:c+:t+:w+:W+";
- opt |= getopt32(argv, OPT_STRING, &pingcount, &str_s, &opt_ttl, &deadline, &timeout, &str_I);
+ opt_complementary = "=1:q--v:v--q";
+ opt |= getopt32(argv, OPT_STRING, &pingcount, &str_s, &opt_ttl, &deadline, &timeout, &str_I, &str_p);
if (opt & OPT_s)
datalen = xatou16(str_s); // -s
if (opt & OPT_I) { // -I
str_I = NULL; /* don't try to bind to device later */
}
}
+ if (opt & OPT_p)
+ G.pattern = xstrtou_range(str_p, 16, 0, 255);
+
myid = (uint16_t) getpid();
hostname = argv[optind];
#if ENABLE_PING6
#endif /* FEATURE_FANCY_PING */
+#if ENABLE_PING
int ping_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ping_main(int argc UNUSED_PARAM, char **argv)
{
-#if !ENABLE_FEATURE_FANCY_PING
+# if !ENABLE_FEATURE_FANCY_PING
return common_ping_main(AF_UNSPEC, argv);
-#else
+# else
return common_ping_main(0, argv);
-#endif
+# endif
}
+#endif
#if ENABLE_PING6
int ping6_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
projects / oweals / busybox.git / blobdiff