@@ -1,4 +1,4 @@
-/*
+/*
* Copyright (C) 2007-2009 B.A.T.M.A.N. contributors:
*
* Andreas Langer <a.langer@q-dsl.de>, Marek Lindner <lindner_marek@yahoo.de>
@@ -48,6 +48,7 @@ void ping_usage(void)
printf(" \t -h print this help\n");
printf(" \t -i interval in seconds\n");
printf(" \t -t timeout in seconds\n");
+ printf(" \t -R record route\n");
}
void sig_handler(int sig)
@@ -64,20 +65,22 @@ void sig_handler(int sig)
int ping(int argc, char **argv)
{
- struct icmp_packet icmp_packet_out, icmp_packet_in;
+ struct icmp_packet_rr icmp_packet_out, icmp_packet_in;
struct timeval tv;
- struct ether_addr *dst_mac = NULL;
- struct bat_host *bat_host;
+ struct ether_addr *dst_mac = NULL, *rr_mac = NULL;
+ struct bat_host *bat_host, *rr_host;
ssize_t read_len;
fd_set read_socket;
int ret = EXIT_FAILURE, ping_fd = 0, res, optchar, found_args = 1;
- int loop_count = -1, loop_interval = 1, timeout = 1;
+ int loop_count = -1, loop_interval = 1, timeout = 1, rr = 0, i;
unsigned int seq_counter = 0, packets_out = 0, packets_in = 0, packets_loss;
- char *dst_string, *mac_string;
+ char *dst_string, *mac_string, *rr_string;
double time_delta;
float min = 0.0, max = 0.0, avg = 0.0;
+ uint8_t last_rr_cur = 0, last_rr[BAT_RR_LEN][ETH_ALEN];
+ size_t packet_len;
- while ((optchar = getopt(argc, argv, "hc:i:t:")) != -1) {
+ while ((optchar = getopt(argc, argv, "hc:i:t:R")) != -1) {
switch (optchar) {
case 'c':
loop_count = strtol(optarg, NULL , 10);
@@ -100,6 +103,10 @@ int ping(int argc, char **argv)
timeout = 1;
found_args += ((*((char*)(optarg - 1)) == optchar ) ? 1 : 2);
break;
+ case 'R':
+ rr = 1;
+ found_args++;
+ break;
default:
ping_usage();
return EXIT_FAILURE;
@@ -141,6 +148,8 @@ int ping(int argc, char **argv)
goto out;
}
+ packet_len = sizeof(struct icmp_packet);
+
memcpy(&icmp_packet_out.dst, dst_mac, ETH_ALEN);
icmp_packet_out.packet_type = BAT_ICMP;
icmp_packet_out.version = COMPAT_VERSION;
@@ -148,8 +157,15 @@ int ping(int argc, char **argv)
icmp_packet_out.ttl = 50;
icmp_packet_out.seqno = 0;
+ if (rr) {
+ packet_len = sizeof(struct icmp_packet_rr);
+ icmp_packet_out.rr_cur = 1;
+ memset(&icmp_packet_out.rr, 0, BAT_RR_LEN * ETH_ALEN);
+ memset(last_rr, 0, BAT_RR_LEN * ETH_ALEN);
+ }
+
printf("PING %s (%s) %zu(%zu) bytes of data\n", dst_string, mac_string,
- sizeof(icmp_packet_out), sizeof(icmp_packet_out) + 28);
+ packet_len, packet_len + 28);
while (!is_aborted) {
if (loop_count == 0)
@@ -160,7 +176,7 @@ int ping(int argc, char **argv)
icmp_packet_out.seqno = htons(++seq_counter);
- if (write(ping_fd, (char *)&icmp_packet_out, sizeof(icmp_packet_out)) < 0) {
+ if (write(ping_fd, (char *)&icmp_packet_out, packet_len) < 0) {
printf("Error - can't write to batman adv kernel file '%s': %s\n", BAT_DEVICE, strerror(errno));
goto sleep;
}
@@ -188,26 +204,57 @@ int ping(int argc, char **argv)
if (res < 0)
goto sleep;
- read_len = read(ping_fd, (char *)&icmp_packet_in, sizeof(icmp_packet_in));
+ read_len = read(ping_fd, (char *)&icmp_packet_in, packet_len);
if (read_len < 0) {
printf("Error - can't read from batman adv kernel file '%s': %s\n", BAT_DEVICE, strerror(errno));
goto sleep;
}
- if ((size_t)read_len < sizeof(icmp_packet_in)) {
+ if ((size_t)read_len < packet_len) {
printf("Warning - dropping received packet as it is smaller than expected (%zu): %zd\n",
- sizeof(icmp_packet_in), read_len);
+ packet_len, read_len);
goto sleep;
}
switch (icmp_packet_in.msg_type) {
case ECHO_REPLY:
time_delta = end_timer();
- printf("%zd bytes from %s icmp_seq=%hu ttl=%d time=%.2f ms\n",
+ printf("%zd bytes from %s icmp_seq=%hu ttl=%d time=%.2f ms",
read_len, dst_string, ntohs(icmp_packet_in.seqno),
icmp_packet_in.ttl, time_delta);
+ if (read_len == sizeof(struct icmp_packet_rr)) {
+ if (last_rr_cur == icmp_packet_in.rr_cur
+ && !memcmp(last_rr, icmp_packet_in.rr, BAT_RR_LEN * ETH_ALEN)) {
+
+ printf("\t(same route)");
+
+ } else {
+ printf("\nRR: ");
+
+ for (i = 0; i < BAT_RR_LEN
+ && i < icmp_packet_in.rr_cur; i++) {
+
+ rr_mac = (struct ether_addr *)&icmp_packet_in.rr[i];
+ rr_host = bat_hosts_find_by_mac((char *)rr_mac);
+ if (rr_host)
+ rr_string = rr_host->name;
+ else
+ rr_string = ether_ntoa_long(rr_mac);
+ printf("\t%s\n", rr_string);
+
+ if (memcmp(rr_mac, dst_mac, ETH_ALEN) == 0)
+ printf("\t%s\n", rr_string);
+ }
+
+ last_rr_cur = icmp_packet_in.rr_cur;
+ memcpy(last_rr, icmp_packet_in.rr, BAT_RR_LEN * ETH_ALEN);
+ }
+ }
+
+ printf("\n");
+
if ((time_delta < min) || (min == 0.0))
min = time_delta;
if (time_delta > max)