]> git.saurik.com Git - apple/network_cmds.git/blobdiff - netstat.tproj/inet.c
network_cmds-433.tar.gz
[apple/network_cmds.git] / netstat.tproj / inet.c
index ffad668e3680f621ebe4a5faf6820594b1133cb1..fe69a5495da9be83575f4c39d776bcaf34e5a268 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2008-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -72,6 +72,7 @@ static const char rcsid[] =
 #include <sys/sysctl.h>
 
 #include <net/route.h>
+#include <net/if_arp.h>
 #include <netinet/in.h>
 #include <netinet/in_systm.h>
 #include <netinet/ip.h>
@@ -103,6 +104,10 @@ static const char rcsid[] =
 #include <unistd.h>
 #include "netstat.h"
 
+#ifdef __APPLE__
+#include <TargetConditionals.h>
+#endif
+
 #define ROUNDUP64(a) \
        ((a) > 0 ? (1 + (((a) - 1) | (sizeof(uint64_t) - 1))) : sizeof(uint64_t))
 #define ADVANCE64(x, n) (((char *)x) += ROUNDUP64(n))
@@ -112,6 +117,7 @@ void        inetprint (struct in_addr *, int, char *, int);
 #ifdef INET6
 extern void    inet6print (struct in6_addr *, int, char *, int);
 static int udp_done, tcp_done;
+extern int mptcp_done;
 #endif /* INET6 */
 
 #ifdef SRVCACHE
@@ -183,7 +189,7 @@ _serv_cache_getservbyport(int port, char *proto)
        return &s;
 }
 
-#endif SRVCACHE
+#endif /* SRVCACHE */
        
 /*
  * Print a summary of connections related to an Internet
@@ -191,7 +197,6 @@ _serv_cache_getservbyport(int port, char *proto)
  * Listening processes (aflag) are suppressed unless the
  * -a (all) flag is specified.
  */
-#if !TARGET_OS_EMBEDDED
 
 struct xgen_n {
        u_int32_t       xgn_len;                        /* length of this structure */
@@ -219,7 +224,7 @@ protopr(uint32_t proto,             /* for sysctl version we pass proto # */
        struct xsockbuf_n *so_snd = NULL;
        struct xsockstat_n *so_stat = NULL;
        int which = 0;
-       
+
        istcp = 0;
        switch (proto) {
                case IPPROTO_TCP:
@@ -306,7 +311,8 @@ protopr(uint32_t proto,             /* for sysctl version we pass proto # */
                                        break;
                        }               
                } else {
-                       printf("got %d twice\n", xgn->xgn_kind);
+            if (vflag)
+                printf("got %d twice\n", xgn->xgn_kind);
                }
                
                if ((istcp && which != ALL_XGN_KIND_TCP) || (!istcp && which != ALL_XGN_KIND_INP))
@@ -354,12 +360,14 @@ protopr(uint32_t proto,           /* for sysctl version we pass proto # */
                                printf(
                                           "Current listen queue sizes (qlen/incqlen/maxqlen)");
                        putchar('\n');
-                       if (Aflag)
+                       if (Aflag) {
 #if !TARGET_OS_EMBEDDED
                                printf("%-16.16s ", "Socket");
 #else
-                       printf("%-8.8s ", "Socket");
+                               printf("%-8.8s ", "Socket");
 #endif
+                               printf("%-9.9s", "Flowhash");
+                       }
                        if (Lflag)
                                printf("%-14.14s %-22.22s\n",
                                           "Listen", "Local Address");
@@ -392,6 +400,7 @@ protopr(uint32_t proto,             /* for sysctl version we pass proto # */
 #else
                        printf("%8lx ", (u_long)so->so_pcb);
 #endif
+                       printf("%8x ", inp->inp_flowhash);
                }
                if (Lflag) {
                        char buf[15];
@@ -491,7 +500,7 @@ protopr(uint32_t proto,             /* for sysctl version we pass proto # */
                        u_int64_t rxbytes = 0;
                        u_int64_t txbytes = 0;
                        
-                       for (i = 0; i < SO_TC_MAX; i++) {
+                       for (i = 0; i < SO_TC_STATS_MAX; i++) {
                                rxbytes += so_stat->xst_tc_stats[i].rxbytes;
                                txbytes += so_stat->xst_tc_stats[i].txbytes;
                        }
@@ -500,259 +509,8 @@ protopr(uint32_t proto,           /* for sysctl version we pass proto # */
                }
                if (prioflag >= 0) {
                        printf(" %10llu %10llu", 
-                                  prioflag < SO_TC_MAX ? so_stat->xst_tc_stats[prioflag].rxbytes : 0, 
-                                  prioflag < SO_TC_MAX ? so_stat->xst_tc_stats[prioflag].txbytes : 0);
-               }
-               putchar('\n');
-       }
-       if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
-               if (oxig->xig_count > xig->xig_count) {
-                       printf("Some %s sockets may have been deleted.\n",
-                              name);
-               } else if (oxig->xig_count < xig->xig_count) {
-                       printf("Some %s sockets may have been created.\n",
-                              name);
-               } else {
-                       printf("Some %s sockets may have been created or deleted",
-                              name);
-               }
-       }
-       free(buf);
-}
-
-#else /* TARGET_OS_EMBEDDED */
-
-void
-protopr(uint32_t proto,                /* for sysctl version we pass proto # */
-       char *name, int af)
-{
-       int istcp;
-       static int first = 1;
-       char *buf;
-       const char *mibvar;
-       struct xinpgen *xig, *oxig;
-       struct tcpcb *tp = NULL;
-       struct inpcb *inp;
-       struct xsocket *so;
-       size_t len;
-
-       istcp = 0;
-       switch (proto) {
-       case IPPROTO_TCP:
-#ifdef INET6
-               if (tcp_done != 0)
-                       return;
-               else
-                       tcp_done = 1;
-#endif
-               istcp = 1;
-               mibvar = "net.inet.tcp.pcblist";
-                       break;
-       case IPPROTO_UDP:
-#ifdef INET6
-               if (udp_done != 0)
-                       return;
-               else
-                       udp_done = 1;
-#endif
-               mibvar = "net.inet.udp.pcblist";
-                       break;
-       case IPPROTO_DIVERT:
-               mibvar = "net.inet.divert.pcblist";
-                       break;
-       default:
-               mibvar = "net.inet.raw.pcblist";
-                       break;
-       }
-       len = 0;
-       if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
-               if (errno != ENOENT)
-                       warn("sysctl: %s", mibvar);
-               return;
-       }        
-       if ((buf = malloc(len)) == 0) {
-               warn("malloc %lu bytes", (u_long)len);
-               return;
-       }
-       if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
-               warn("sysctl: %s", mibvar);
-               free(buf);
-               return;
-       }
-        
-       /*
-        * Bail-out to avoid logic error in the loop below when
-        * there is in fact no more control block to process
-        */
-       if (len <= sizeof(struct xinpgen)) {
-               free(buf);
-               return;
-       }
-               
-       oxig = xig = (struct xinpgen *)buf;
-       for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
-            xig->xig_len > sizeof(struct xinpgen);
-            xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
-               if (istcp) {
-                       tp = &((struct xtcpcb *)xig)->xt_tp;
-                       inp = &((struct xtcpcb *)xig)->xt_inp;
-                       so = &((struct xtcpcb *)xig)->xt_socket;
-               } else {
-                       inp = &((struct xinpcb *)xig)->xi_inp;
-                       so = &((struct xinpcb *)xig)->xi_socket;
-               }
-
-               /* Ignore sockets for protocols other than the desired one. */
-               if (so->xso_protocol != (int)proto)
-                       continue;
-
-               /* Ignore PCBs which were freed during copyout. */
-               if (inp->inp_gencnt > oxig->xig_gen)
-                       continue;
-
-               if ((af == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
-#ifdef INET6
-                   || (af == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
-#endif /* INET6 */
-                   || (af == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
-#ifdef INET6
-                                           && (inp->inp_vflag &
-                                               INP_IPV6) == 0
-#endif /* INET6 */
-                       ))
-                   )
-                       continue;
-
-                /*
-                 * Local address is not an indication of listening socket or
-                 * server sockey but just rather the socket has been bound.
-                 * That why many UDP sockets were not displayed in the original code.
-                 */
-                if (!aflag && istcp && tp->t_state <= TCPS_LISTEN)
-                    continue;
-
-                if (Lflag && !so->so_qlimit)
-                    continue;
-
-                if (first) {
-                       if (!Lflag) {
-                               printf("Active Internet connections");
-                               if (aflag)
-                                       printf(" (including servers)");
-                       } else
-                               printf(
-       "Current listen queue sizes (qlen/incqlen/maxqlen)");
-                       putchar('\n');
-                       if (Aflag)
-                               printf("%-8.8s ", "Socket");
-                       if (Lflag)
-                               printf("%-14.14s %-22.22s\n",
-                                       "Listen", "Local Address");
-                       else
-                               printf((Aflag && !Wflag) ?
-               "%-5.5s %-6.6s %-6.6s  %-18.18s %-18.18s %s\n" :
-               "%-5.5s %-6.6s %-6.6s  %-22.22s %-22.22s %s\n",
-                                       "Proto", "Recv-Q", "Send-Q",
-                                       "Local Address", "Foreign Address",
-                                       "(state)");
-                       first = 0;
-               }
-                if (Aflag) {
-                        if (istcp)
-                                printf("%8lx ", (u_long)inp->inp_ppcb);
-                        else
-                                printf("%8lx ", (u_long)so->so_pcb);
-                }
-               if (Lflag) {
-                               char buf[15];
-
-                               snprintf(buf, 15, "%d/%d/%d", so->so_qlen,
-                                        so->so_incqlen, so->so_qlimit);
-                               printf("%-14.14s ", buf);
-                }
-               else {
-                       const char *vchar;
-
-#ifdef INET6
-                       if ((inp->inp_vflag & INP_IPV6) != 0)
-                               vchar = ((inp->inp_vflag & INP_IPV4) != 0)
-                                       ? "46" : "6 ";
-                       else
-#endif
-                       vchar = ((inp->inp_vflag & INP_IPV4) != 0)
-                                       ? "4 " : "  ";
-
-                       printf("%-3.3s%-2.2s %6u %6u  ", name, vchar,
-                              so->so_rcv.sb_cc,
-                              so->so_snd.sb_cc);
-               }
-               if (nflag) {
-                       if (inp->inp_vflag & INP_IPV4) {
-                               inetprint(&inp->inp_laddr, (int)inp->inp_lport,
-                                         name, 1);
-                               if (!Lflag)
-                                       inetprint(&inp->inp_faddr,
-                                                 (int)inp->inp_fport, name, 1);
-                       }
-#ifdef INET6
-                       else if (inp->inp_vflag & INP_IPV6) {
-                               inet6print(&inp->in6p_laddr,
-                                          (int)inp->inp_lport, name, 1);
-                               if (!Lflag)
-                                       inet6print(&inp->in6p_faddr,
-                                                  (int)inp->inp_fport, name, 1);
-                       } /* else nothing printed now */
-#endif /* INET6 */
-               } else if (inp->inp_flags & INP_ANONPORT) {
-                       if (inp->inp_vflag & INP_IPV4) {
-                               inetprint(&inp->inp_laddr, (int)inp->inp_lport,
-                                         name, 1);
-                               if (!Lflag)
-                                       inetprint(&inp->inp_faddr,
-                                                 (int)inp->inp_fport, name, 0);
-                       }
-#ifdef INET6
-                       else if (inp->inp_vflag & INP_IPV6) {
-                               inet6print(&inp->in6p_laddr,
-                                          (int)inp->inp_lport, name, 1);
-                               if (!Lflag)
-                                       inet6print(&inp->in6p_faddr,
-                                                  (int)inp->inp_fport, name, 0);
-                       } /* else nothing printed now */
-#endif /* INET6 */
-               } else {
-                       if (inp->inp_vflag & INP_IPV4) {
-                               inetprint(&inp->inp_laddr, (int)inp->inp_lport,
-                                         name, 0);
-                               if (!Lflag)
-                                       inetprint(&inp->inp_faddr,
-                                                 (int)inp->inp_fport, name,
-                                                 inp->inp_lport !=
-                                                       inp->inp_fport);
-                       }
-#ifdef INET6
-                       else if (inp->inp_vflag & INP_IPV6) {
-                               inet6print(&inp->in6p_laddr,
-                                          (int)inp->inp_lport, name, 0);
-                               if (!Lflag)
-                                       inet6print(&inp->in6p_faddr,
-                                                  (int)inp->inp_fport, name,
-                                                  inp->inp_lport !=
-                                                       inp->inp_fport);
-                       } /* else nothing printed now */
-#endif /* INET6 */
-               }
-               if (istcp && !Lflag) {
-                       if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
-                               printf("%d", tp->t_state);
-                      else {
-                               printf("%s", tcpstates[tp->t_state]);
-#if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
-                              /* Show T/TCP `hidden state' */
-                              if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
-                                      putchar('*');
-#endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
-                      }
+                                  prioflag < SO_TC_STATS_MAX ? so_stat->xst_tc_stats[prioflag].rxbytes : 0, 
+                                  prioflag < SO_TC_STATS_MAX ? so_stat->xst_tc_stats[prioflag].txbytes : 0);
                }
                putchar('\n');
        }
@@ -770,17 +528,18 @@ protopr(uint32_t proto,           /* for sysctl version we pass proto # */
        }
        free(buf);
 }
-#endif /* TARGET_OS_EMBEDDED */
 
 /*
  * Dump TCP statistics structure.
  */
 void
-tcp_stats(uint32_t off , char *name, int af )
+tcp_stats(uint32_t off , char *name, int af)
 {
        static struct tcpstat ptcpstat;
        struct tcpstat tcpstat;
        size_t len = sizeof tcpstat;
+       static uint32_t r_swcsum, pr_swcsum;
+       static uint32_t t_swcsum, pt_swcsum;
 
        if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len, 0, 0) < 0) {
                warn("sysctl: net.inet.tcp.stats");
@@ -794,6 +553,8 @@ tcp_stats(uint32_t off , char *name, int af )
                tcp_done = 1;
 #endif
 
+    if (interval && vflag > 0)
+        print_time();
        printf ("%s:\n", name);
 
 #define        TCPDIFF(f) (tcpstat.f - ptcpstat.f)
@@ -820,6 +581,16 @@ tcp_stats(uint32_t off , char *name, int af )
        p(tcps_sndprobe, "\t\t%u window probe packet%s\n");
        p(tcps_sndwinup, "\t\t%u window update packet%s\n");
        p(tcps_sndctrl, "\t\t%u control packet%s\n");
+       p(tcps_fcholdpacket, "\t\t%u data packet%s sent after flow control\n");
+       t_swcsum = tcpstat.tcps_snd_swcsum + tcpstat.tcps_snd6_swcsum;
+       if ((t_swcsum - pt_swcsum) || sflag <= 1)
+        printf("\t\t%u checksummed in software\n", (t_swcsum - pt_swcsum));
+       p2(tcps_snd_swcsum, tcps_snd_swcsum_bytes,
+           "\t\t\t%u segment%s (%u byte%s) over IPv4\n");
+#if INET6
+       p2(tcps_snd6_swcsum, tcps_snd6_swcsum_bytes,
+           "\t\t\t%u segment%s (%u byte%s) over IPv6\n");
+#endif /* INET6 */
        p(tcps_rcvtotal, "\t%u packet%s received\n");
        p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t%u ack%s (for %u byte%s)\n");
        p(tcps_rcvdupack, "\t\t%u duplicate ack%s\n");
@@ -840,6 +611,16 @@ tcp_stats(uint32_t off , char *name, int af )
        p(tcps_rcvafterclose, "\t\t%u packet%s received after close\n");
        p(tcps_badrst, "\t\t%u bad reset%s\n");
        p(tcps_rcvbadsum, "\t\t%u discarded for bad checksum%s\n");
+       r_swcsum = tcpstat.tcps_rcv_swcsum + tcpstat.tcps_rcv6_swcsum;
+       if ((r_swcsum - pr_swcsum) || sflag <= 1)
+        printf("\t\t%u checksummed in software\n",
+               (r_swcsum - pr_swcsum));
+       p2(tcps_rcv_swcsum, tcps_rcv_swcsum_bytes,
+           "\t\t\t%u segment%s (%u byte%s) over IPv4\n");
+#if INET6
+       p2(tcps_rcv6_swcsum, tcps_rcv6_swcsum_bytes,
+           "\t\t\t%u segment%s (%u byte%s) over IPv6\n");
+#endif /* INET6 */
        p(tcps_rcvbadoff, "\t\t%u discarded for bad header offset field%s\n");
        p1a(tcps_rcvshort, "\t\t%u discarded because packet too short\n");
        p(tcps_connattempt, "\t%u connection request%s\n");
@@ -880,8 +661,22 @@ tcp_stats(uint32_t off , char *name, int af )
        p1a(tcps_sack_sboverflow, "\t%u SACK scoreboard overflow\n"); 
 #endif /* TCP_MAX_SACK */
 
-       if (interval > 0)
+       p(tcps_coalesced_pack, "\t%u LRO coalesced packet%s\n");
+       p(tcps_flowtbl_full, "\t\t%u time%s LRO flow table was full\n");
+       p(tcps_flowtbl_collision, "\t\t%u collision%s in LRO flow table\n");
+       p(tcps_lro_twopack, "\t\t%u time%s LRO coalesced 2 packets\n");
+       p(tcps_lro_multpack, "\t\t%u time%s LRO coalesced 3 or 4 packets\n");
+       p(tcps_lro_largepack, "\t\t%u time%s LRO coalesced 5 or more packets\n");
+
+       p(tcps_limited_txt, "\t%u limited transmit%s done\n");
+       p(tcps_early_rexmt, "\t%u early retransmit%s done\n");
+       p(tcps_sack_ackadv, "\t%u time%s cumulative ack advanced along with SACK\n");
+
+       if (interval > 0) {
                bcopy(&tcpstat, &ptcpstat, len);
+               pr_swcsum = r_swcsum;
+               pt_swcsum = t_swcsum;
+       }
 
 #undef TCPDIFF
 #undef p
@@ -891,6 +686,76 @@ tcp_stats(uint32_t off , char *name, int af )
 #undef p3
 }
 
+#if TARGET_OS_EMBEDDED
+/*
+ * Dump MPTCP statistics
+ */
+void
+mptcp_stats(uint32_t off , char *name, int af)
+{
+       static struct tcpstat ptcpstat;
+       struct tcpstat tcpstat;
+       size_t len = sizeof tcpstat;
+
+       if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len, 0, 0) < 0) {
+               warn("sysctl: net.inet.tcp.stats");
+               return;
+       }
+
+#ifdef INET6
+       if (mptcp_done != 0 && interval == 0)
+               return;
+       else
+               mptcp_done = 1;
+#endif
+
+       if (interval && vflag > 0)
+               print_time();
+       printf ("%s:\n", name);
+
+#define        MPTCPDIFF(f) (tcpstat.f - ptcpstat.f)
+#define        p(f, m) if (MPTCPDIFF(f) || sflag <= 1) \
+    printf(m, MPTCPDIFF(f), plural(MPTCPDIFF(f)))
+#define        p1a(f, m) if (MPTCPDIFF(f) || sflag <= 1) \
+    printf(m, MPTCPDIFF(f))
+#define        p2(f1, f2, m) if (MPTCPDIFF(f1) || MPTCPDIFF(f2) || sflag <= 1) \
+    printf(m, MPTCPDIFF(f1), plural(MPTCPDIFF(f1)), \
+        MPTCPDIFF(f2), plural(MPTCPDIFF(f2)))
+#define        p2a(f1, f2, m) if (MPTCPDIFF(f1) || MPTCPDIFF(f2) || sflag <= 1) \
+    printf(m, MPTCPDIFF(f1), plural(MPTCPDIFF(f1)), MPTCPDIFF(f2))
+#define        p3(f, m) if (MPTCPDIFF(f) || sflag <= 1) \
+    printf(m, MPTCPDIFF(f), plurales(MPTCPDIFF(f)))
+
+       p(tcps_mp_sndpacks, "\t%u data packet%s sent\n");
+       p(tcps_mp_sndbytes, "\t%u data byte%s sent\n");
+       p(tcps_mp_rcvtotal, "\t%u data packet%s received\n");
+       p(tcps_mp_rcvbytes, "\t%u data byte%s received\n");
+       p(tcps_invalid_mpcap, "\t%u packet%s with an invalid MPCAP option\n");
+       p(tcps_invalid_joins, "\t%u packet%s with an invalid MPJOIN option\n");
+       p(tcps_mpcap_fallback, "\t%u time%s primary subflow fell back to "
+           "TCP\n");
+       p(tcps_join_fallback, "\t%u time%s secondary subflow fell back to "
+           "TCP\n");
+       p(tcps_estab_fallback, "\t%u DSS option drop%s\n");
+       p(tcps_invalid_opt, "\t%u other invalid MPTCP option%s\n");
+       p(tcps_mp_reducedwin, "\t%u time%s the MPTCP subflow window was reduced\n");
+       p(tcps_mp_badcsum, "\t%u bad DSS checksum%s\n");
+       p(tcps_mp_oodata, "\t%u time%s received out of order data \n");
+       p3(tcps_mp_switches, "\t%u subflow switch%s\n");
+       
+       if (interval > 0) {
+               bcopy(&tcpstat, &ptcpstat, len);
+       }
+
+#undef MPTCPDIFF
+#undef p
+#undef p1a
+#undef p2
+#undef p2a
+#undef p3
+}
+#endif /* TARGET_OS_EMBEDDED */
+
 /*
  * Dump UDP statistics structure.
  */
@@ -901,6 +766,8 @@ udp_stats(uint32_t off , char *name, int af )
        struct udpstat udpstat;
        size_t len = sizeof udpstat;
        uint32_t delivered;
+       static uint32_t r_swcsum, pr_swcsum;
+       static uint32_t t_swcsum, pt_swcsum;
 
        if (sysctlbyname("net.inet.udp.stats", &udpstat, &len, 0, 0) < 0) {
                warn("sysctl: net.inet.udp.stats");
@@ -914,6 +781,8 @@ udp_stats(uint32_t off , char *name, int af )
                udp_done = 1;
 #endif
 
+    if (interval && vflag > 0)
+        print_time();
        printf("%s:\n", name);
 
 #define        UDPDIFF(f) (udpstat.f - pudpstat.f)
@@ -921,15 +790,30 @@ udp_stats(uint32_t off , char *name, int af )
     printf(m, UDPDIFF(f), plural(UDPDIFF(f)))
 #define        p1a(f, m) if (UDPDIFF(f) || sflag <= 1) \
     printf(m, UDPDIFF(f))
+#define        p2(f1, f2, m) if (UDPDIFF(f1) || UDPDIFF(f2) || sflag <= 1) \
+    printf(m, UDPDIFF(f1), plural(UDPDIFF(f1)), UDPDIFF(f2), plural(UDPDIFF(f2)))
        p(udps_ipackets, "\t%u datagram%s received\n");
-       p1a(udps_hdrops, "\t%u with incomplete header\n");
-       p1a(udps_badlen, "\t%u with bad data length field\n");
-       p1a(udps_badsum, "\t%u with bad checksum\n");
-       p1a(udps_noport, "\t%u dropped due to no socket\n");
+       p1a(udps_hdrops, "\t\t%u with incomplete header\n");
+       p1a(udps_badlen, "\t\t%u with bad data length field\n");
+       p1a(udps_badsum, "\t\t%u with bad checksum\n");
+       p1a(udps_nosum, "\t\t%u with no checksum\n");
+       r_swcsum = udpstat.udps_rcv_swcsum + udpstat.udps_rcv6_swcsum;
+       if ((r_swcsum - pr_swcsum) || sflag <= 1)
+        printf("\t\t%u checksummed in software\n", (r_swcsum - pr_swcsum));
+       p2(udps_rcv_swcsum, udps_rcv_swcsum_bytes,
+           "\t\t\t%u datagram%s (%u byte%s) over IPv4\n");
+#if INET6
+       p2(udps_rcv6_swcsum, udps_rcv6_swcsum_bytes,
+           "\t\t\t%u datagram%s (%u byte%s) over IPv6\n");
+#endif /* INET6 */
+       p1a(udps_noport, "\t\t%u dropped due to no socket\n");
        p(udps_noportbcast,
-           "\t%u broadcast/multicast datagram%s dropped due to no socket\n");
-       p1a(udps_fullsock, "\t%u dropped due to full socket buffers\n");
-       p1a(udpps_pcbhashmiss, "\t%u not for hashed pcb\n");
+           "\t\t%u broadcast/multicast datagram%s undelivered\n");
+       /* the next statistic is cumulative in udps_noportbcast */
+       p(udps_filtermcast,
+           "\t\t%u time%s multicast source filter matched\n");
+       p1a(udps_fullsock, "\t\t%u dropped due to full socket buffers\n");
+       p1a(udpps_pcbhashmiss, "\t\t%u not for hashed pcb\n");
        delivered = UDPDIFF(udps_ipackets) -
                    UDPDIFF(udps_hdrops) -
                    UDPDIFF(udps_badlen) -
@@ -938,15 +822,28 @@ udp_stats(uint32_t off , char *name, int af )
                    UDPDIFF(udps_noportbcast) -
                    UDPDIFF(udps_fullsock);
        if (delivered || sflag <= 1)
-               printf("\t%u delivered\n", delivered);
+               printf("\t\t%u delivered\n", delivered);
        p(udps_opackets, "\t%u datagram%s output\n");
+       t_swcsum = udpstat.udps_snd_swcsum + udpstat.udps_snd6_swcsum;
+       if ((t_swcsum - pt_swcsum) || sflag <= 1)
+        printf("\t\t%u checksummed in software\n", (t_swcsum - pt_swcsum));
+       p2(udps_snd_swcsum, udps_snd_swcsum_bytes,
+           "\t\t\t%u datagram%s (%u byte%s) over IPv4\n");
+#if INET6
+       p2(udps_snd6_swcsum, udps_snd6_swcsum_bytes,
+           "\t\t\t%u datagram%s (%u byte%s) over IPv6\n");
+#endif /* INET6 */
 
-       if (interval > 0)
+       if (interval > 0) {
                bcopy(&udpstat, &pudpstat, len);
+               pr_swcsum = r_swcsum;
+               pt_swcsum = t_swcsum;
+       }
 
 #undef UDPDIFF
 #undef p
 #undef p1a
+#undef p2
 }
 
 /*
@@ -964,6 +861,8 @@ ip_stats(uint32_t off , char *name, int af )
                return;
        }
 
+    if (interval && vflag > 0)
+        print_time();
        printf("%s:\n", name);
 
 #define        IPDIFF(f) (ipstat.f - pipstat.f)
@@ -971,41 +870,51 @@ ip_stats(uint32_t off , char *name, int af )
     printf(m, IPDIFF(f), plural(IPDIFF(f)))
 #define        p1a(f, m) if (IPDIFF(f) || sflag <= 1) \
     printf(m, IPDIFF(f))
+#define        p2(f1, f2, m) if (IPDIFF(f1) || IPDIFF(f2) || sflag <= 1) \
+    printf(m, IPDIFF(f1), plural(IPDIFF(f1)), IPDIFF(f2), plural(IPDIFF(f2)))
 
        p(ips_total, "\t%u total packet%s received\n");
-       p(ips_badsum, "\t%u bad header checksum%s\n");
-       p1a(ips_toosmall, "\t%u with size smaller than minimum\n");
-       p1a(ips_tooshort, "\t%u with data size < data length\n");
-       p1a(ips_toolong, "\t%u with ip length > max ip packet size\n");
-       p1a(ips_badhlen, "\t%u with header length < data size\n");
-       p1a(ips_badlen, "\t%u with data length < header length\n");
-       p1a(ips_badoptions, "\t%u with bad options\n");
-       p1a(ips_badvers, "\t%u with incorrect version number\n");
-       p(ips_fragments, "\t%u fragment%s received\n");
-       p(ips_fragdropped, "\t%u fragment%s dropped (dup or out of space)\n");
-       p(ips_fragtimeout, "\t%u fragment%s dropped after timeout\n");
-       p(ips_reassembled, "\t%u packet%s reassembled ok\n");
-       p(ips_delivered, "\t%u packet%s for this host\n");
-       p(ips_noproto, "\t%u packet%s for unknown/unsupported protocol\n");
-       p(ips_forward, "\t%u packet%s forwarded");
+       p(ips_badsum, "\t\t%u bad header checksum%s\n");
+       p2(ips_rcv_swcsum, ips_rcv_swcsum_bytes,
+           "\t\t%u header%s (%u byte%s) checksummed in software\n");
+       p1a(ips_toosmall, "\t\t%u with size smaller than minimum\n");
+       p1a(ips_tooshort, "\t\t%u with data size < data length\n");
+       p1a(ips_adj, "\t\t%u with data size > data length\n");
+       p(ips_adj_hwcsum_clr,
+           "\t\t\t%u packet%s forced to software checksum\n");
+       p1a(ips_toolong, "\t\t%u with ip length > max ip packet size\n");
+       p1a(ips_badhlen, "\t\t%u with header length < data size\n");
+       p1a(ips_badlen, "\t\t%u with data length < header length\n");
+       p1a(ips_badoptions, "\t\t%u with bad options\n");
+       p1a(ips_badvers, "\t\t%u with incorrect version number\n");
+       p(ips_fragments, "\t\t%u fragment%s received\n");
+       p1a(ips_fragdropped, "\t\t\t%u dropped (dup or out of space)\n");
+       p1a(ips_fragtimeout, "\t\t\t%u dropped after timeout\n");
+       p1a(ips_reassembled, "\t\t\t%u reassembled ok\n");
+       p(ips_delivered, "\t\t%u packet%s for this host\n");
+       p(ips_noproto, "\t\t%u packet%s for unknown/unsupported protocol\n");
+       p(ips_forward, "\t\t%u packet%s forwarded");
        p(ips_fastforward, " (%u packet%s fast forwarded)");
        if (IPDIFF(ips_forward) || sflag <= 1)
                putchar('\n');
-       p(ips_cantforward, "\t%u packet%s not forwardable\n");
+       p(ips_cantforward, "\t\t%u packet%s not forwardable\n");
        p(ips_notmember,
-         "\t%u packet%s received for unknown multicast group\n");
-       p(ips_redirectsent, "\t%u redirect%s sent\n");
+         "\t\t%u packet%s received for unknown multicast group\n");
+       p(ips_redirectsent, "\t\t%u redirect%s sent\n");
        p(ips_localout, "\t%u packet%s sent from this host\n");
-       p(ips_rawout, "\t%u packet%s sent with fabricated ip header\n");
+       p(ips_rawout, "\t\t%u packet%s sent with fabricated ip header\n");
        p(ips_odropped,
-         "\t%u output packet%s dropped due to no bufs, etc.\n");
-       p(ips_noroute, "\t%u output packet%s discarded due to no route\n");
-       p(ips_fragmented, "\t%u output datagram%s fragmented\n");
-       p(ips_ofragments, "\t%u fragment%s created\n");
-       p(ips_cantfrag, "\t%u datagram%s that can't be fragmented\n");
-       p(ips_nogif, "\t%u tunneling packet%s that can't find gif\n");
-       p(ips_badaddr, "\t%u datagram%s with bad address in header\n");
-       p(ips_pktdropcntrl, "\t%u packet%s dropped due to no bufs for control data\n");
+         "\t\t%u output packet%s dropped due to no bufs, etc.\n");
+       p(ips_noroute, "\t\t%u output packet%s discarded due to no route\n");
+       p(ips_fragmented, "\t\t%u output datagram%s fragmented\n");
+       p(ips_ofragments, "\t\t%u fragment%s created\n");
+       p(ips_cantfrag, "\t\t%u datagram%s that can't be fragmented\n");
+       p(ips_nogif, "\t\t%u tunneling packet%s that can't find gif\n");
+       p(ips_badaddr, "\t\t%u datagram%s with bad address in header\n");
+       p(ips_pktdropcntrl,
+           "\t\t%u packet%s dropped due to no bufs for control data\n");
+       p2(ips_snd_swcsum, ips_snd_swcsum_bytes,
+           "\t\t%u header%s (%u byte%s) checksummed in software\n");
 
        if (interval > 0)
                bcopy(&ipstat, &pipstat, len);
@@ -1013,6 +922,55 @@ ip_stats(uint32_t off , char *name, int af )
 #undef IPDIFF
 #undef p
 #undef p1a
+#undef p2
+}
+
+/*
+ * Dump ARP statistics structure.
+ */
+void
+arp_stats(uint32_t off, char *name, int af)
+{
+       static struct arpstat parpstat;
+       struct arpstat arpstat;
+       size_t len = sizeof (arpstat);
+
+       if (sysctlbyname("net.link.ether.inet.stats", &arpstat,
+           &len, 0, 0) < 0) {
+               warn("sysctl: net.link.ether.inet.stats");
+               return;
+       }
+
+    if (interval && vflag > 0)
+        print_time();
+       printf("%s:\n", name);
+
+#define        ARPDIFF(f) (arpstat.f - parpstat.f)
+#define        p(f, m) if (ARPDIFF(f) || sflag <= 1) \
+    printf(m, ARPDIFF(f), plural(ARPDIFF(f)))
+#define        p2(f, m) if (ARPDIFF(f) || sflag <= 1) \
+    printf(m, ARPDIFF(f), pluralies(ARPDIFF(f)))
+
+       p(txrequests, "\t%u ARP request%s sent\n");
+       p2(txreplies, "\t%u ARP repl%s sent\n");
+       p(txannounces, "\t%u ARP announcement%s sent\n");
+       p(rxrequests, "\t%u ARP request%s received\n");
+       p2(rxreplies, "\t%u ARP repl%s received\n");
+       p(received, "\t%u total ARP packet%s received\n");
+       p(txconflicts, "\t%u ARP conflict probe%s sent\n");
+       p(invalidreqs, "\t%u invalid ARP resolve request%s\n");
+       p(reqnobufs, "\t%u total packet%s dropped due to lack of memory\n");
+       p(dropped, "\t%u total packet%s dropped due to no ARP entry\n");
+       p(purged, "\t%u total packet%s dropped during ARP entry removal\n");
+       p2(timeouts, "\t%u ARP entr%s timed out\n");
+       p(dupips, "\t%u Duplicate IP%s seen\n");
+
+       if (interval > 0)
+               bcopy(&arpstat, &parpstat, len);
+
+#undef ARPDIFF
+#undef p
+#undef p2
 }
 
 static char *icmpnames[] = {
@@ -1059,6 +1017,8 @@ icmp_stats(uint32_t off , char *name, int af )
        if (sysctl(mib, 4, &icmpstat, &len, (void *)0, 0) < 0)
                return;         /* XXX should complain, but not traditional */
 
+    if (interval && vflag > 0)
+        print_time();
        printf("%s:\n", name);
 
 #define        ICMPDIFF(f) (icmpstat.f - picmpstat.f)
@@ -1134,6 +1094,8 @@ igmp_stats(uint32_t off , char *name, int af )
                    igmpstat.igps_len, IGPS_VERSION3_LEN);
        }
 
+    if (interval && vflag > 0)
+        print_time();
        printf("%s:\n", name);
 
 #define        IGMPDIFF(f) ((uintmax_t)(igmpstat.f - pigmpstat.f))