ignore pcap files which are generated from .puu files.

[tcpdump] / print-pim.c

diff --git a/print-pim.c b/print-pim.c
index 10a030ebd2284b15c827b896089b31e05bb03704..1b0279039c7829afd2d16e353598afde5bc04d23 100644 (file)
--- a/print-pim.c
+++ b/print-pim.c
@@ -21,108 +21,330 @@
 
 #ifndef lint
 static const char rcsid[] =
 
 #ifndef lint
 static const char rcsid[] =

-    "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.11 1999-11-17 04:14:50 assar Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-pim.c,v 1.37 2003-10-29 02:07:57 itojun Exp $ (LBL)";

 #endif
 
 #endif
 

-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/socket.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif

 
 

-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_var.h>
-#include <netinet/udp.h>
-#include <netinet/udp_var.h>
-#include <netinet/tcp.h>
+#include <tcpdump-stdinc.h>

 
 /*
  * XXX: We consider a case where IPv6 is not ready yet for portability,
  * but PIM dependent defintions should be independent of IPv6...
  */
 
 /*
  * XXX: We consider a case where IPv6 is not ready yet for portability,
  * but PIM dependent defintions should be independent of IPv6...
  */

-#ifdef INET6
-#include <netinet6/pim6.h>
-#else
+

 struct pim {
 struct pim {

-#if defined(WORDS_BIGENDIAN) || (defined(BYTE_ORDER) && (BYTE_ORDER == LITTLE_ENDIAN))
-       u_int   pim_type:4, /* the PIM message type, currently they are:
-                           * Hello, Register, Register-Stop, Join/Prune,
-                           * Bootstrap, Assert, Graft (PIM-DM only),
-                           * Graft-Ack (PIM-DM only), C-RP-Adv
-                           */
-               pim_ver:4;  /* PIM version number; 2 for PIMv2 */
-#else
-       u_int   pim_ver:4,      /* PIM version */
-               pim_type:4;     /* PIM type    */
-#endif
+       u_int8_t pim_typever;
+                       /* upper 4bit: PIM version number; 2 for PIMv2 */
+                       /* lower 4bit: the PIM message type, currently they are:
+                        * Hello, Register, Register-Stop, Join/Prune,
+                        * Bootstrap, Assert, Graft (PIM-DM only),
+                        * Graft-Ack (PIM-DM only), C-RP-Adv
+                        */
+#define PIM_VER(x)     (((x) & 0xf0) >> 4)
+#define PIM_TYPE(x)    ((x) & 0x0f)

        u_char  pim_rsv;        /* Reserved */
        u_short pim_cksum;      /* IP style check sum */
 };
        u_char  pim_rsv;        /* Reserved */
        u_short pim_cksum;      /* IP style check sum */
 };

-#endif 

 
 
 #include <stdio.h>
 #include <stdlib.h>
 
 
 #include <stdio.h>
 #include <stdlib.h>

-#include <unistd.h>

 
 #include "interface.h"
 #include "addrtoname.h"
 
 #include "interface.h"
 #include "addrtoname.h"

+#include "extract.h"
+
+#include "ip.h"

 
 static void pimv2_print(register const u_char *bp, register u_int len);
 
 
 static void pimv2_print(register const u_char *bp, register u_int len);
 

-void
-igmp_pim_print(register const u_char *bp, register u_int len)
+static void
+pimv1_join_prune_print(register const u_char *bp, register u_int len)

 {
 {

-    register const u_char *ep;
-    register u_char type;
+       int maddrlen, addrlen, ngroups, njoin, nprune;
+       int njp;
+
+       /* If it's a single group and a single source, use 1-line output. */
+       if (TTEST2(bp[0], 30) && bp[11] == 1 &&
+           ((njoin = EXTRACT_16BITS(&bp[20])) + EXTRACT_16BITS(&bp[22])) == 1) {
+               int hold;
+
+               (void)printf(" RPF %s ", ipaddr_string(bp));
+               hold = EXTRACT_16BITS(&bp[6]);
+               if (hold != 180) {
+                       (void)printf("Hold ");
+                       relts_print(hold);
+               }
+               (void)printf("%s (%s/%d, %s", njoin ? "Join" : "Prune",
+               ipaddr_string(&bp[26]), bp[25] & 0x3f,
+               ipaddr_string(&bp[12]));
+               if (EXTRACT_32BITS(&bp[16]) != 0xffffffff)
+                       (void)printf("/%s", ipaddr_string(&bp[16]));
+               (void)printf(") %s%s %s",
+                   (bp[24] & 0x01) ? "Sparse" : "Dense",
+                   (bp[25] & 0x80) ? " WC" : "",
+                   (bp[25] & 0x40) ? "RP" : "SPT");
+               return;
+       }

 
 

-    ep = (const u_char *)snapend;
-    if (bp >= ep)
+       TCHECK2(bp[0], 4);
+       if (vflag > 1)
+               (void)printf("\n");
+       (void)printf(" Upstream Nbr: %s", ipaddr_string(bp));
+       TCHECK2(bp[6], 2);
+       if (vflag > 1)
+               (void)printf("\n");
+       (void)printf(" Hold time: ");
+       relts_print(EXTRACT_16BITS(&bp[6]));
+       if (vflag < 2)
+               return;
+       bp += 8;
+       len -= 8;
+
+       TCHECK2(bp[0], 4);
+       maddrlen = bp[1];
+       addrlen = bp[2];
+       ngroups = bp[3];
+       bp += 4;
+       len -= 4;
+       while (ngroups--) {
+               TCHECK2(bp[0], 4);
+               (void)printf("\n\tGroup: %s", ipaddr_string(bp));
+               if (EXTRACT_32BITS(&bp[4]) != 0xffffffff)
+                       (void)printf("/%s", ipaddr_string(&bp[4]));
+               TCHECK2(bp[8], 4);
+               njoin = EXTRACT_16BITS(&bp[8]);
+               nprune = EXTRACT_16BITS(&bp[10]);
+               (void)printf(" joined: %d pruned: %d", njoin, nprune);
+               bp += 12;
+               len -= 12;
+               for (njp = 0; njp < (njoin + nprune); njp++) {
+                       const char *type;
+
+                       if (njp < njoin)
+                               type = "Join ";
+                       else
+                               type = "Prune";
+                       TCHECK2(bp[0], 6);
+                       (void)printf("\n\t%s %s%s%s%s/%d", type,
+                           (bp[0] & 0x01) ? "Sparse " : "Dense ",
+                           (bp[1] & 0x80) ? "WC " : "",
+                           (bp[1] & 0x40) ? "RP " : "SPT ",
+                       ipaddr_string(&bp[2]), bp[1] & 0x3f);
+                       bp += 6;
+                       len -= 6;
+               }
+       }

        return;
        return;

+trunc:
+       (void)printf("[|pim]");
+       return;
+}

 
 

-    type = bp[1];
-
-    switch (type) {
-    case 0:
-       (void)printf(" Query");
-       break;
-
-    case 1:
-       (void)printf(" Register");
-       break;
+void
+pimv1_print(register const u_char *bp, register u_int len)
+{
+       register const u_char *ep;
+       register u_char type;

 
 

-    case 2:
-       (void)printf(" Register-Stop");
-       break;
+       ep = (const u_char *)snapend;
+       if (bp >= ep)
+               return;

 
 

-    case 3:
-       (void)printf(" Join/Prune");
-       break;
+       type = bp[1];

 
 

-    case 4:
-       (void)printf(" RP-reachable");
-       break;
+       switch (type) {
+       case 0:
+               (void)printf(" Query");
+               if (TTEST(bp[8])) {
+                       switch (bp[8] >> 4) {
+                       case 0:
+                               (void)printf(" Dense-mode");
+                               break;
+                       case 1:
+                               (void)printf(" Sparse-mode");
+                               break;
+                       case 2:
+                               (void)printf(" Sparse-Dense-mode");
+                               break;
+                       default:
+                               (void)printf(" mode-%d", bp[8] >> 4);
+                               break;
+                       }
+               }
+               if (vflag) {
+                       TCHECK2(bp[10],2);
+                       (void)printf(" (Hold-time ");
+                       relts_print(EXTRACT_16BITS(&bp[10]));
+                       (void)printf(")");
+               }
+               break;

 
 

-    case 5:
-       (void)printf(" Assert");
-       break;
+       case 1:
+               (void)printf(" Register");
+               TCHECK2(bp[8], 20);                     /* ip header */
+               (void)printf(" for %s > %s", ipaddr_string(&bp[20]),
+                   ipaddr_string(&bp[24]));
+               break;
+       case 2:
+               (void)printf(" Register-Stop");
+               TCHECK2(bp[12], 4);
+               (void)printf(" for %s > %s", ipaddr_string(&bp[8]),
+                   ipaddr_string(&bp[12]));
+               break;
+       case 3:
+               (void)printf(" Join/Prune");
+               if (vflag)
+                       pimv1_join_prune_print(&bp[8], len - 8);
+               break;
+       case 4:
+               (void)printf(" RP-reachable");
+               if (vflag) {
+                       TCHECK2(bp[22], 2);
+                       (void)printf(" group %s",
+                       ipaddr_string(&bp[8]));
+                       if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
+                               (void)printf("/%s", ipaddr_string(&bp[12]));
+                       (void)printf(" RP %s hold ", ipaddr_string(&bp[16]));
+                       relts_print(EXTRACT_16BITS(&bp[22]));
+               }
+               break;
+       case 5:
+               (void)printf(" Assert");
+               TCHECK2(bp[16], 4);
+               (void)printf(" for %s > %s", ipaddr_string(&bp[16]),
+                   ipaddr_string(&bp[8]));
+               if (EXTRACT_32BITS(&bp[12]) != 0xffffffff)
+                       (void)printf("/%s", ipaddr_string(&bp[12]));
+               TCHECK2(bp[24], 4);
+               (void)printf(" %s pref %d metric %d",
+                   (bp[20] & 0x80) ? "RP-tree" : "SPT",
+               EXTRACT_32BITS(&bp[20]) & 0x7fffffff,
+               EXTRACT_32BITS(&bp[24]));
+               break;
+       case 6:
+               (void)printf(" Graft");
+               if (vflag)
+                       pimv1_join_prune_print(&bp[8], len - 8);
+               break;
+       case 7:
+               (void)printf(" Graft-ACK");
+               if (vflag)
+                       pimv1_join_prune_print(&bp[8], len - 8);
+               break;
+       case 8:
+               (void)printf(" Mode");
+               break;
+       default:
+               (void)printf(" [type %d]", type);
+               break;
+       }
+       if ((bp[4] >> 4) != 1)
+               (void)printf(" [v%d]", bp[4] >> 4);
+       return;

 
 

-    case 6:
-       (void)printf(" Graft");
-       break;
+trunc:
+       (void)printf("[|pim]");
+       return;
+}

 
 

-    case 7:
-       (void)printf(" Graft-ACK");
-       break;
+/*
+ * auto-RP is a cisco protocol, documented at
+ * ftp://ftpeng.cisco.com/ipmulticast/specs/pim-autorp-spec01.txt
+ *
+ * This implements version 1+, dated Sept 9, 1998.
+ */
+void
+cisco_autorp_print(register const u_char *bp, register u_int len)
+{
+       int type;
+       int numrps;
+       int hold;
+
+       TCHECK(bp[0]);
+       (void)printf(" auto-rp ");
+       type = bp[0];
+       switch (type) {
+       case 0x11:
+               (void)printf("candidate-advert");
+               break;
+       case 0x12:
+               (void)printf("mapping");
+               break;
+       default:
+               (void)printf("type-0x%02x", type);
+               break;
+       }

 
 

-    case 8:
-       (void)printf(" Mode");
-       break;
+       TCHECK(bp[1]);
+       numrps = bp[1];
+
+       TCHECK2(bp[2], 2);
+       (void)printf(" Hold ");
+       hold = EXTRACT_16BITS(&bp[2]);
+       if (hold)
+               relts_print(EXTRACT_16BITS(&bp[2]));
+       else
+               printf("FOREVER");
+
+       /* Next 4 bytes are reserved. */
+
+       bp += 8; len -= 8;
+
+       /*XXX skip unless -v? */
+
+       /*
+        * Rest of packet:
+        * numrps entries of the form:
+        * 32 bits: RP
+        * 6 bits: reserved
+        * 2 bits: PIM version supported, bit 0 is "supports v1", 1 is "v2".
+        * 8 bits: # of entries for this RP
+        * each entry: 7 bits: reserved, 1 bit: negative,
+        *             8 bits: mask 32 bits: source
+        * lather, rinse, repeat.
+        */
+       while (numrps--) {
+               int nentries;
+               char s;
+
+               TCHECK2(bp[0], 4);
+               (void)printf(" RP %s", ipaddr_string(bp));
+               TCHECK(bp[4]);
+               switch (bp[4] & 0x3) {
+               case 0: printf(" PIMv?");
+                       break;
+               case 1: printf(" PIMv1");
+                       break;
+               case 2: printf(" PIMv2");
+                       break;
+               case 3: printf(" PIMv1+2");
+                       break;
+               }
+               if (bp[4] & 0xfc)
+                       (void)printf(" [rsvd=0x%02x]", bp[4] & 0xfc);
+               TCHECK(bp[5]);
+               nentries = bp[5];
+               bp += 6; len -= 6;
+               s = ' ';
+               for (; nentries; nentries--) {
+                       TCHECK2(bp[0], 6);
+                       (void)printf("%c%s%s/%d", s, bp[0] & 1 ? "!" : "",
+                           ipaddr_string(&bp[2]), bp[1]);
+                       if (bp[0] & 0xfe)
+                               (void)printf("[rsvd=0x%02x]", bp[0] & 0xfe);
+                       s = ',';
+                       bp += 6; len -= 6;
+               }
+       }
+       return;

 
 

-    default:
-       (void)printf(" [type %d]", type);
-       break;
-    }
+trunc:
+       (void)printf("[|autorp]");
+       return;

 }
 
 void
 }
 
 void


@@ -138,121 +360,188 @@ pim_print(register const u_char *bp, register u_int len)
        TCHECK(pim->pim_rsv);
 #endif
 
        TCHECK(pim->pim_rsv);
 #endif
 

-       switch(pim->pim_ver) {
-        case 2:                /* avoid hardcoding? */
-               (void)printf("v2");
+       switch (PIM_VER(pim->pim_typever)) {
+       case 2:         /* avoid hardcoding? */
+               (void)printf("pim v2");

                pimv2_print(bp, len);
                break;
                pimv2_print(bp, len);
                break;

-        default:
-               (void)printf("v%d", pim->pim_ver);
+       default:
+               (void)printf("pim v%d", PIM_VER(pim->pim_typever));

                break;
        }
        return;
 }
 
                break;
        }
        return;
 }
 

+/*
+ * PIMv2 uses encoded address representations.
+ *
+ * The last PIM-SM I-D before RFC2117 was published specified the
+ * following representation for unicast addresses.  However, RFC2117
+ * specified no encoding for unicast addresses with the unicast
+ * address length specified in the header.  Therefore, we have to
+ * guess which encoding is being used (Cisco's PIMv2 implementation
+ * uses the non-RFC encoding).  RFC2117 turns a previously "Reserved"
+ * field into a 'unicast-address-length-in-bytes' field.  We guess
+ * that it's the draft encoding if this reserved field is zero.
+ *
+ * RFC2362 goes back to the encoded format, and calls the addr length
+ * field "reserved" again.
+ *
+ * The first byte is the address family, from:
+ *
+ *    0    Reserved
+ *    1    IP (IP version 4)
+ *    2    IP6 (IP version 6)
+ *    3    NSAP
+ *    4    HDLC (8-bit multidrop)
+ *    5    BBN 1822
+ *    6    802 (includes all 802 media plus Ethernet "canonical format")
+ *    7    E.163
+ *    8    E.164 (SMDS, Frame Relay, ATM)
+ *    9    F.69 (Telex)
+ *   10    X.121 (X.25, Frame Relay)
+ *   11    IPX
+ *   12    Appletalk
+ *   13    Decnet IV
+ *   14    Banyan Vines
+ *   15    E.164 with NSAP format subaddress
+ *
+ * In addition, the second byte is an "Encoding".  0 is the default
+ * encoding for the address family, and no other encodings are currently
+ * specified.
+ *
+ */
+
+static int pimv2_addr_len;
+

 enum pimv2_addrtype {
        pimv2_unicast, pimv2_group, pimv2_source
 };
 enum pimv2_addrtype {
        pimv2_unicast, pimv2_group, pimv2_source
 };

-#if 0
-static char *addrtypestr[] = {
-       "unicast", "group", "source"
-};
-#endif

 
 

+/*  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Addr Family   | Encoding Type |     Unicast Address           |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+++++++
+ *  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Addr Family   | Encoding Type |   Reserved    |  Mask Len     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                Group multicast Address                        |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Addr Family   | Encoding Type | Rsrvd   |S|W|R|  Mask Len     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                        Source Address                         |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */

 static int
 pimv2_addr_print(const u_char *bp, enum pimv2_addrtype at, int silent)
 {
 static int
 pimv2_addr_print(const u_char *bp, enum pimv2_addrtype at, int silent)
 {

-       const u_char *ep;

        int af;
        int af;

-       char *afstr;
-       int len;
-
-       ep = (const u_char *)snapend;
-       if (bp >= ep)
-               return -1;
+       const char *afstr;
+       int len, hdrlen;

 
 

-       switch (bp[0]) {
-        case 1:
-               af = AF_INET;
-               afstr = "IPv4";
-               break;
-#ifdef INET6
-        case 2:
-               af = AF_INET6;
-               afstr = "IPv6";
-               break;
-#endif
-        default:
-               return -1;
-       }
-
-       if (bp[1] != 0)
-               return -1;
+       TCHECK(bp[0]);

 
 

-       switch (at) {
-        case pimv2_unicast:
-               if (af == AF_INET) {
+       if (pimv2_addr_len == 0) {
+               TCHECK(bp[1]);
+               switch (bp[0]) {
+               case 1:
+                       af = AF_INET;
+                       afstr = "IPv4";

                        len = 4;
                        len = 4;

-                       if (bp + 2 + len > ep)
-                               return -1;
-                       if (!silent)
-                               (void)printf("%s", ipaddr_string(bp + 2));
-               }
+                       break;

 #ifdef INET6
 #ifdef INET6

-               else if (af == AF_INET6) {
+               case 2:
+                       af = AF_INET6;
+                       afstr = "IPv6";

                        len = 16;
                        len = 16;

-                       if (bp + 2 + len > ep)
-                               return -1;
-                       if (!silent)
-                               (void)printf("%s", ip6addr_string(bp + 2));
+                       break;
+#endif
+               default:
+                       return -1;

                }
                }

+               if (bp[1] != 0)
+                       return -1;
+               hdrlen = 2;
+       } else {
+               switch (pimv2_addr_len) {
+               case 4:
+                       af = AF_INET;
+                       afstr = "IPv4";
+                       break;
+#ifdef INET6
+               case 16:
+                       af = AF_INET6;
+                       afstr = "IPv6";
+                       break;

 #endif
 #endif

-               return 2 + len;
-        case pimv2_group:
+               default:
+                       return -1;
+                       break;
+               }
+               len = pimv2_addr_len;
+               hdrlen = 0;
+       }
+
+       bp += hdrlen;
+       switch (at) {
+       case pimv2_unicast:
+               TCHECK2(bp[0], len);

                if (af == AF_INET) {
                if (af == AF_INET) {

-                       len = 4;
-                       if (bp + 4 + len > ep)
-                               return -1;

                        if (!silent)
                        if (!silent)

-                               (void)printf("%s/%u", ipaddr_string(bp + 4), bp[3]);
+                               (void)printf("%s", ipaddr_string(bp));

                }
 #ifdef INET6
                else if (af == AF_INET6) {
                }
 #ifdef INET6
                else if (af == AF_INET6) {

-                       len = 16;
-                       if (bp + 4 + len > ep)
-                               return -1;

                        if (!silent)
                        if (!silent)

-                               (void)printf("%s/%u", ip6addr_string(bp + 4), bp[3]);
+                               (void)printf("%s", ip6addr_string(bp));

                }
 #endif
                }
 #endif

-               return 4 + len;
-        case pimv2_source:
+               return hdrlen + len;
+       case pimv2_group:
+       case pimv2_source:
+               TCHECK2(bp[0], len + 2);

                if (af == AF_INET) {
                if (af == AF_INET) {

-                       len = 4;
-                       if (bp + 4 + len > ep)
-                               return -1;
-                       if (!silent)
-                               (void)printf("%s/%u", ipaddr_string(bp + 4), bp[3]);
+                       if (!silent) {
+                               (void)printf("%s", ipaddr_string(bp + 2));
+                               if (bp[1] != 32)
+                                       (void)printf("/%u", bp[1]);
+                       }

                }
 #ifdef INET6
                else if (af == AF_INET6) {
                }
 #ifdef INET6
                else if (af == AF_INET6) {

-                       len = 16;
-                       if (bp + 4 + len > ep)
-                               return -1;
-                       if (!silent)
-                               (void)printf("%s/%u", ip6addr_string(bp + 4), bp[3]);
+                       if (!silent) {
+                               (void)printf("%s", ip6addr_string(bp + 2));
+                               if (bp[1] != 128)
+                                       (void)printf("/%u", bp[1]);
+                       }

                }
 #endif
                }
 #endif

-               if (vflag && bp[2] && !silent) {
-                       (void)printf("(%s%s%s)",
-                               bp[2] & 0x04 ? "S" : "",
-                               bp[2] & 0x02 ? "W" : "",
-                               bp[2] & 0x01 ? "R" : "");
+               if (bp[0] && !silent) {
+                       if (at == pimv2_group) {
+                               (void)printf("(0x%02x)", bp[0]);
+                       } else {
+                               (void)printf("(%s%s%s",
+                                       bp[0] & 0x04 ? "S" : "",
+                                       bp[0] & 0x02 ? "W" : "",
+                                       bp[0] & 0x01 ? "R" : "");
+                               if (bp[0] & 0xf8) {
+                                       (void) printf("+0x%02x", bp[0] & 0xf8);
+                               }
+                               (void)printf(")");
+                       }

                }
                }

-               return 4 + len;
+               return hdrlen + 2 + len;

        default:
                return -1;
        }
        default:
                return -1;
        }

+trunc:
+       return -1;

 }
 
 static void
 }
 
 static void


@@ -265,36 +554,121 @@ pimv2_print(register const u_char *bp, register u_int len)
        ep = (const u_char *)snapend;
        if (bp >= ep)
                return;
        ep = (const u_char *)snapend;
        if (bp >= ep)
                return;

-#ifdef notyet                  /* currently we see only version and type */
+       if (ep > bp + len)
+               ep = bp + len;

        TCHECK(pim->pim_rsv);
        TCHECK(pim->pim_rsv);

-#endif
+       pimv2_addr_len = pim->pim_rsv;
+       if (pimv2_addr_len != 0)
+               (void)printf("[RFC2117-encoding] ");

 
 

-       switch (pim->pim_type) {
-        case 0:
+       switch (PIM_TYPE(pim->pim_typever)) {
+       case 0:

            {
                u_int16_t otype, olen;
                (void)printf(" Hello");
                bp += 4;
                while (bp < ep) {
            {
                u_int16_t otype, olen;
                (void)printf(" Hello");
                bp += 4;
                while (bp < ep) {

-                       otype = ntohs(*(u_int16_t *)(bp + 0));
-                       olen = ntohs(*(u_int16_t *)(bp + 2));
-                       if (otype == 1 && olen == 2 && bp + 4 + olen <= ep) {
-                               u_int16_t value;
-                               (void)printf(" holdtime=");
-                               value = ntohs(*(u_int16_t *)(bp + 4));
-                               if (value == 0xffff)
-                                       (void)printf("infty");
+                       TCHECK2(bp[0], 4);
+                       otype = EXTRACT_16BITS(&bp[0]);
+                       olen = EXTRACT_16BITS(&bp[2]);
+                       TCHECK2(bp[0], 4 + olen);
+                       switch (otype) {
+                       case 1:         /* Hold time */
+                               (void)printf(" (Hold-time ");
+                               relts_print(EXTRACT_16BITS(&bp[4]));
+                               (void)printf(")");
+                               break;
+
+                       case 2:         /* LAN Prune Delay */
+                               (void)printf(" (LAN-Prune-Delay: ");
+                               if (olen != 4) {
+                                       (void)printf("!olen=%d!)", olen);
+                               } else {
+                                       char t_bit;
+                                       u_int16_t lan_delay, override_interval;
+                                       lan_delay = EXTRACT_16BITS(&bp[4]);
+                                       override_interval = EXTRACT_16BITS(&bp[6]);
+                                       t_bit = (lan_delay & 0x8000)? 1 : 0;
+                                       lan_delay &= ~0x8000;
+                                       (void)printf("T-bit=%d lan-delay=%dms override-interval=%dms)",
+                                       t_bit, lan_delay, override_interval);
+                               }
+                               break;
+
+                       case 18:        /* Old DR-Priority */
+                               if (olen == 4)
+                                       (void)printf(" (OLD-DR-Priority: %d)",
+                                                       EXTRACT_32BITS(&bp[4]));

                                else
                                else

-                                       (void)printf("%u", value);
-                               bp += 4 + olen;
-                       } else
+                                       goto unknown;
+                               break;
+
+
+                       case 19:        /* DR-Priority */
+                               if (olen == 0) {
+                                       (void)printf(" (OLD-bidir-capable)");
+                                       break;
+                               }
+                               (void)printf(" (DR-Priority: ");
+                               if (olen != 4) {
+                                       (void)printf("!olen=%d!)", olen);
+                               } else {
+                                       (void)printf("%d)", EXTRACT_32BITS(&bp[4]));
+                               }
+                               break;
+
+                       case 20:
+                               (void)printf(" (Genid: 0x%08x)", EXTRACT_32BITS(&bp[4]));
+                               break;
+
+                       case 21:
+                               (void)printf(" (State Refresh Capable; v%d", bp[4]);
+                               if (bp[5] != 0) {
+                                       (void)printf(" interval ");
+                                       relts_print(bp[5]);
+                               }
+                               if (EXTRACT_16BITS(&bp[6]) != 0) {
+                                       (void)printf(" ?0x%04x?", EXTRACT_16BITS(&bp[6]));
+                               }
+                               (void)printf(")");
+                               break;
+
+                       case 22:        /* Bidir-Capable */
+                               (void)printf(" (bidir-capable)");

                                break;
                                break;

+
+                       case 24:        /* Address List */
+                       case 65001:     /* Address List (old implementations) */
+                               (void)printf(" (%saddr-list",
+                                            otype == 65001 ? "old" : "");
+                               if (vflag > 1) {
+                                       const u_char *ptr = &bp[4];
+                                       while (ptr < &bp[4 + olen]) {
+                                               int advance;
+
+                                               printf(" ");
+                                               advance = pimv2_addr_print(ptr, pimv2_unicast, 0);
+                                               if (advance < 0) {
+                                                       printf("...");
+                                                       break;
+                                               }
+                                               ptr += advance;
+                                       }
+                               }
+                               (void)printf(")");
+                               break;
+                       default:
+                       unknown:
+                               if (vflag)
+                                       (void)printf(" [Hello option %d]", otype);
+                       }
+                       bp += 4 + olen;

                }
                break;
            }
 
                }
                break;
            }
 

-        case 1:
-        {
+       case 1:
+       {

                struct ip *ip;
 
                (void)printf(" Register");
                struct ip *ip;
 
                (void)printf(" Register");


@@ -308,25 +682,25 @@ pimv2_print(register const u_char *bp, register u_int len)
                if (bp >= ep)
                        break;
                ip = (struct ip *)bp;
                if (bp >= ep)
                        break;
                ip = (struct ip *)bp;

-               switch(ip->ip_v) {
-                case 4:        /* IPv4 */
+               switch (IP_V(ip)) {
+               case 4: /* IPv4 */

                        printf(" ");
                        ip_print(bp, len);
                        break;
 #ifdef INET6
                        printf(" ");
                        ip_print(bp, len);
                        break;
 #ifdef INET6

-                case 6:        /* IPv6 */
+               case 6: /* IPv6 */

                        printf(" ");
                        ip6_print(bp, len);
                        break;
 #endif
                        printf(" ");
                        ip6_print(bp, len);
                        break;
 #endif

-                default:
-                       (void)printf(" IP ver %d", ip->ip_v);
+               default:
+                       (void)printf(" IP ver %d", IP_V(ip));

                        break;
                }
                break;
                        break;
                }
                break;

-        }
+       }

 
 

-        case 2:
+       case 2:

                (void)printf(" Register-Stop");
                bp += 4; len -= 4;
                if (bp >= ep)
                (void)printf(" Register-Stop");
                bp += 4; len -= 4;
                if (bp >= ep)


@@ -347,9 +721,9 @@ pimv2_print(register const u_char *bp, register u_int len)
                bp += advance; len -= advance;
                break;
 
                bp += advance; len -= advance;
                break;
 

-        case 3:
-        case 6:
-        case 7:
+       case 3:
+       case 6:
+       case 7:

            {
                u_int8_t ngroup;
                u_int16_t holdtime;
            {
                u_int8_t ngroup;
                u_int16_t holdtime;


@@ -357,19 +731,19 @@ pimv2_print(register const u_char *bp, register u_int len)
                u_int16_t nprune;
                int i, j;
 
                u_int16_t nprune;
                int i, j;
 

-               switch (pim->pim_type) {
-                case 3:
+               switch (PIM_TYPE(pim->pim_typever)) {
+               case 3:

                        (void)printf(" Join/Prune");
                        break;
                        (void)printf(" Join/Prune");
                        break;

-                case 6:
+               case 6:

                        (void)printf(" Graft");
                        break;
                        (void)printf(" Graft");
                        break;

-                case 7:
+               case 7:

                        (void)printf(" Graft-ACK");
                        break;
                }
                bp += 4; len -= 4;
                        (void)printf(" Graft-ACK");
                        break;
                }
                bp += 4; len -= 4;

-               if (pim->pim_type != 7) {       /*not for Graft-ACK*/
+               if (PIM_TYPE(pim->pim_typever) != 7) {  /*not for Graft-ACK*/

                        if (bp >= ep)
                                break;
                        (void)printf(" upstream-neighbor=");
                        if (bp >= ep)
                                break;
                        (void)printf(" upstream-neighbor=");


@@ -382,14 +756,14 @@ pimv2_print(register const u_char *bp, register u_int len)
                if (bp + 4 > ep)
                        break;
                ngroup = bp[1];
                if (bp + 4 > ep)
                        break;
                ngroup = bp[1];

-               holdtime = ntohs(*(u_int16_t *)(bp + 2));
+               holdtime = EXTRACT_16BITS(&bp[2]);

                (void)printf(" groups=%u", ngroup);
                (void)printf(" groups=%u", ngroup);

-               if (pim->pim_type != 7) {       /*not for Graft-ACK*/
+               if (PIM_TYPE(pim->pim_typever) != 7) {  /*not for Graft-ACK*/

                        (void)printf(" holdtime=");
                        if (holdtime == 0xffff)
                                (void)printf("infty");
                        else
                        (void)printf(" holdtime=");
                        if (holdtime == 0xffff)
                                (void)printf("infty");
                        else

-                               (void)printf("%u", holdtime);
+                               relts_print(holdtime);

                }
                bp += 4; len -= 4;
                for (i = 0; i < ngroup; i++) {
                }
                bp += 4; len -= 4;
                for (i = 0; i < ngroup; i++) {


@@ -405,8 +779,8 @@ pimv2_print(register const u_char *bp, register u_int len)
                                (void)printf("...)");
                                goto jp_done;
                        }
                                (void)printf("...)");
                                goto jp_done;
                        }

-                       njoin = ntohs(*(u_int16_t *)(bp + 0));
-                       nprune = ntohs(*(u_int16_t *)(bp + 2));
+                       njoin = EXTRACT_16BITS(&bp[0]);
+                       nprune = EXTRACT_16BITS(&bp[2]);

                        (void)printf(" join=%u", njoin);
                        bp += 4; len -= 4;
                        for (j = 0; j < njoin; j++) {
                        (void)printf(" join=%u", njoin);
                        bp += 4; len -= 4;
                        for (j = 0; j < njoin; j++) {


@@ -432,8 +806,8 @@ pimv2_print(register const u_char *bp, register u_int len)
                break;
            }
 
                break;
            }
 

-        case 4:
-        {
+       case 4:
+       {

                int i, j, frpcnt;
 
                (void)printf(" Bootstrap");
                int i, j, frpcnt;
 
                (void)printf(" Bootstrap");


@@ -441,7 +815,7 @@ pimv2_print(register const u_char *bp, register u_int len)
 
                /* Fragment Tag, Hash Mask len, and BSR-priority */
                if (bp + sizeof(u_int16_t) >= ep) break;
 
                /* Fragment Tag, Hash Mask len, and BSR-priority */
                if (bp + sizeof(u_int16_t) >= ep) break;

-               (void)printf(" tag=%x", ntohs(*(u_int16_t *)bp));
+               (void)printf(" tag=%x", EXTRACT_16BITS(bp));

                bp += sizeof(u_int16_t);
                if (bp >= ep) break;
                (void)printf(" hashmlen=%d", bp[0]);
                bp += sizeof(u_int16_t);
                if (bp >= ep) break;
                (void)printf(" hashmlen=%d", bp[0]);


@@ -473,12 +847,12 @@ pimv2_print(register const u_char *bp, register u_int len)
                                (void)printf("...)");
                                goto bs_done;
                        }
                                (void)printf("...)");
                                goto bs_done;
                        }

-                       (void)printf(" RPcnt=%d", frpcnt = bp[0]);
+                       (void)printf(" RPcnt=%d", bp[0]);

                        if (bp + 1 >= ep) {
                                (void)printf("...)");
                                goto bs_done;
                        }
                        if (bp + 1 >= ep) {
                                (void)printf("...)");
                                goto bs_done;
                        }

-                       (void)printf(" FRPcnt=%d", bp[1]);
+                       (void)printf(" FRPcnt=%d", frpcnt = bp[1]);

                        bp += 4;
 
                        for (j = 0; j < frpcnt && bp < ep; j++) {
                        bp += 4;
 
                        for (j = 0; j < frpcnt && bp < ep; j++) {


@@ -492,25 +866,25 @@ pimv2_print(register const u_char *bp, register u_int len)
                                }
                                bp += advance;
 
                                }
                                bp += advance;
 

-                               if (bp + 2 >= ep) {
+                               if (bp + 1 >= ep) {

                                        (void)printf("...)");
                                        goto bs_done;
                                }
                                        (void)printf("...)");
                                        goto bs_done;
                                }

-                               (void)printf(",holdtime=%d",
-                                            ntohs(*(u_int16_t *)bp));
-                               if (bp + 3 >= ep) {
+                               (void)printf(",holdtime=");
+                               relts_print(EXTRACT_16BITS(bp));
+                               if (bp + 2 >= ep) {

                                        (void)printf("...)");
                                        goto bs_done;
                                }
                                        (void)printf("...)");
                                        goto bs_done;
                                }

-                               (void)printf(",prio=%d", bp[3]);
+                               (void)printf(",prio=%d", bp[2]);

                                bp += 4;
                        }
                        (void)printf(")");
                }
           bs_done:
                break;
                                bp += 4;
                        }
                        (void)printf(")");
                }
           bs_done:
                break;

-        }
-        case 5:
+       }
+       case 5:

                (void)printf(" Assert");
                bp += 4; len -= 4;
                if (bp >= ep)
                (void)printf(" Assert");
                bp += 4; len -= 4;
                if (bp >= ep)


@@ -531,14 +905,14 @@ pimv2_print(register const u_char *bp, register u_int len)
                bp += advance; len -= advance;
                if (bp + 8 > ep)
                        break;
                bp += advance; len -= advance;
                if (bp + 8 > ep)
                        break;

-               if (ntohl(*(u_int32_t *)bp) & 0x80000000)
+               if (bp[0] & 0x80)

                        (void)printf(" RPT");
                        (void)printf(" RPT");

-               (void)printf(" pref=%u", ntohl(*(u_int32_t *)bp & 0x7fffffff));
-               (void)printf(" metric=%u", ntohl(*(u_int32_t *)(bp + 4)));
+               (void)printf(" pref=%u", EXTRACT_32BITS(&bp[0]) & 0x7fffffff);
+               (void)printf(" metric=%u", EXTRACT_32BITS(&bp[4]));

                break;
 
                break;
 

-        case 8:
-        {
+       case 8:
+       {

                int i, pfxcnt;
 
                (void)printf(" Candidate-RP-Advertisement");
                int i, pfxcnt;
 
                (void)printf(" Candidate-RP-Advertisement");


@@ -551,7 +925,8 @@ pimv2_print(register const u_char *bp, register u_int len)
                if (bp + 1 >= ep) break;
                (void)printf(" prio=%d", bp[1]);
                if (bp + 3 >= ep) break;
                if (bp + 1 >= ep) break;
                (void)printf(" prio=%d", bp[1]);
                if (bp + 3 >= ep) break;

-               (void)printf(" holdtime=%d", ntohs(*(u_int16_t *)(bp + 2)));
+               (void)printf(" holdtime=");
+               relts_print(EXTRACT_16BITS(&bp[2]));

                bp += 4;
 
                /* Encoded-Unicast-RP-Address */
                bp += 4;
 
                /* Encoded-Unicast-RP-Address */


@@ -574,12 +949,41 @@ pimv2_print(register const u_char *bp, register u_int len)
                        bp += advance;
                }
                break;
                        bp += advance;
                }
                break;

-        }
+       }
+
+       case 9:
+               (void)printf(" Prune-Refresh");
+               (void)printf(" src=");
+               if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+                       (void)printf("...");
+                       break;
+               }
+               bp += advance;
+               (void)printf(" grp=");
+               if ((advance = pimv2_addr_print(bp, pimv2_group, 0)) < 0) {
+                       (void)printf("...");
+                       break;
+               }
+               bp += advance;
+               (void)printf(" forwarder=");
+               if ((advance = pimv2_addr_print(bp, pimv2_unicast, 0)) < 0) {
+                       (void)printf("...");
+                       break;
+               }
+               bp += advance;
+               TCHECK2(bp[0], 2);
+               (void)printf(" TUNR ");
+               relts_print(EXTRACT_16BITS(bp));
+               break;
+

 
         default:
 
         default:

-               (void)printf(" [type %d]", pim->pim_type);
+               (void)printf(" [type %d]", PIM_TYPE(pim->pim_typever));

                break;
        }
 
        return;
                break;
        }
 
        return;

+
+trunc:
+       (void)printf("[|pim]");

 }
 }