diff options
Diffstat (limited to 'usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c')
| -rw-r--r-- | usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c b/usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c index cae75df60d..b8b56259ad 100644 --- a/usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c +++ b/usr/src/cmd/cmd-inet/usr.sbin/traceroute/traceroute.c @@ -166,6 +166,7 @@ boolean_t useicmp = _B_FALSE; /* use icmp echo instead of udp packets */ boolean_t docksum = _B_TRUE; /* calculate checksums */ static boolean_t collect_stat = _B_FALSE; /* print statistics */ boolean_t settos = _B_FALSE; /* set type-of-service field */ +int dontfrag = 0; /* IP*_DONTFRAG */ static int max_timeout = 5; /* quit after this consecutive timeouts */ static boolean_t probe_all = _B_FALSE; /* probe all the IFs of the target */ static boolean_t pick_src = _B_FALSE; /* traceroute picks the src address */ @@ -315,6 +316,7 @@ main(int argc, char **argv) case 'F': off = IP_DF; + dontfrag = 1; break; case 'g': @@ -1361,6 +1363,24 @@ setup_socket(struct pr_set *pr, int packet_len) exit(EXIT_FAILURE); } } + + /* We enable or disable to not depend on the kernel default */ + if (pr->family == AF_INET) { + if (setsockopt(ssock, IPPROTO_IP, IP_DONTFRAG, + (char *)&dontfrag, sizeof (dontfrag)) == -1) { + Fprintf(stderr, "%s: IP_DONTFRAG %s\n", prog, + strerror(errno)); + exit(EXIT_FAILURE); + } + } else { + if (setsockopt(ssock, IPPROTO_IPV6, IPV6_DONTFRAG, + (char *)&dontfrag, sizeof (dontfrag)) == -1) { + Fprintf(stderr, "%s: IPV6_DONTFRAG %s\n", prog, + strerror(errno)); + exit(EXIT_FAILURE); + } + } + if (pr->family == AF_INET) { rcvsock4 = rsock; sndsock4 = ssock; |