]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-bgp.c
Default to first interface from pcap_findalldevs()
[tcpdump] / print-bgp.c
index 74d7a560dfee090dbf18ba808cb4180d3fa99895..fd25ba84cdbf6e475b40e3614374b2c9bfab9832 100644 (file)
  * complete BGP support.
  */
 
-#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
 
 #include <stdio.h>
 #include <string.h>
 
-#include "interface.h"
+#include "netdissect.h"
 #include "addrtoname.h"
 #include "extract.h"
 #include "af.h"
@@ -132,6 +131,7 @@ struct bgp_route_refresh {
 #define BGPTYPE_AS4_PATH               17      /* RFC4893 */
 #define BGPTYPE_AGGREGATOR4            18      /* RFC4893 */
 #define BGPTYPE_PMSI_TUNNEL             22      /* draft-ietf-l3vpn-2547bis-mcast-bgp-02.txt */
+#define BGPTYPE_AIGP                    26      /* RFC7311 */
 #define BGPTYPE_ATTR_SET               128      /* draft-marques-ppvpn-ibgp */
 
 #define BGP_MP_NLRI_MINSIZE              3       /* End of RIB Marker detection */
@@ -156,6 +156,7 @@ static const struct tok bgp_attr_values[] = {
     { BGPTYPE_MP_UNREACH_NLRI,  "Multi-Protocol Unreach NLRI"},
     { BGPTYPE_EXTD_COMMUNITIES, "Extended Community"},
     { BGPTYPE_PMSI_TUNNEL,      "PMSI Tunnel"},
+    { BGPTYPE_AIGP,             "Accumulated IGP Metric"},
     { BGPTYPE_ATTR_SET,         "Attribute Set"},
     { 255,                      "Reserved for development"},
     { 0, NULL}
@@ -201,6 +202,7 @@ static const struct tok bgp_opt_values[] = {
 #define BGP_CAPCODE_RESTART            64 /* draft-ietf-idr-restart-05  */
 #define BGP_CAPCODE_AS_NEW             65 /* XXX */
 #define BGP_CAPCODE_DYN_CAP            67 /* XXX */
+#define BGP_CAPCODE_ADD_PATH           69 /* draft-ietf-idr-add-paths-10 */
 #define BGP_CAPCODE_RR_CISCO          128
 
 static const struct tok bgp_capcode_values[] = {
@@ -210,6 +212,7 @@ static const struct tok bgp_capcode_values[] = {
     { BGP_CAPCODE_RESTART,      "Graceful Restart"},
     { BGP_CAPCODE_AS_NEW,       "32-Bit AS Number"},
     { BGP_CAPCODE_DYN_CAP,      "Dynamic Capability"},
+    { BGP_CAPCODE_ADD_PATH,     "Multiple Paths"},
     { BGP_CAPCODE_RR_CISCO,     "Route Refresh (Cisco)"},
     { 0, NULL}
 };
@@ -318,6 +321,13 @@ static const struct tok bgp_pmsi_flag_values[] = {
     { 0, NULL}
 };
 
+#define BGP_AIGP_TLV 1
+
+static const struct tok bgp_aigp_values[] = {
+    { BGP_AIGP_TLV, "AIGP"},
+    { 0, NULL}
+};
+
 
 /* Subsequent address family identifier, RFC2283 section 7 */
 #define SAFNUM_RES                      0
@@ -454,7 +464,14 @@ static const struct tok bgp_extd_comm_ospf_rtype_values[] = {
   { 0, NULL },
 };
 
-#define TOKBUFSIZE 128
+/* ADD-PATH Send/Receive field values */
+static const struct tok bgp_add_path_recvsend[] = {
+  { 1, "Receive" },
+  { 2, "Send" },
+  { 3, "Both" },
+  { 0, NULL },
+};
+
 static char astostr[20];
 
 /*
@@ -530,7 +547,7 @@ decode_labeled_prefix4(netdissect_options *ndo,
            is added to the prefix length;
            we also do only read out just one label -
            there is no real application for advertisement of
-           stacked labels in a single BGP message
+           stacked labels in a single BGP message
         */
 
        if (24 > plen)
@@ -574,7 +591,8 @@ badtlv:
  */
 static char *
 bgp_vpn_ip_print(netdissect_options *ndo,
-                 const u_char *pptr, u_int addr_length) {
+                 const u_char *pptr, u_int addr_length)
+{
 
     /* worst case string is s fully formatted v6 address */
     static char addr[sizeof("1234:5678:89ab:cdef:1234:5678:89ab:cdef")];
@@ -585,12 +603,10 @@ bgp_vpn_ip_print(netdissect_options *ndo,
         ND_TCHECK2(pptr[0], sizeof(struct in_addr));
         snprintf(pos, sizeof(addr), "%s", ipaddr_string(ndo, pptr));
         break;
-#ifdef INET6
     case (sizeof(struct in6_addr) << 3): /* 128 */
         ND_TCHECK2(pptr[0], sizeof(struct in6_addr));
         snprintf(pos, sizeof(addr), "%s", ip6addr_string(ndo, pptr));
         break;
-#endif
     default:
         snprintf(pos, sizeof(addr), "bogus address length %u", addr_length);
         break;
@@ -622,8 +638,8 @@ trunc:
  */
 static int
 bgp_vpn_sg_print(netdissect_options *ndo,
-                 const u_char *pptr, char *buf, u_int buflen) {
-
+                 const u_char *pptr, char *buf, u_int buflen)
+{
     uint8_t addr_length;
     u_int total_length, offset;
 
@@ -667,8 +683,8 @@ trunc:
  * printing route targets inside a NLRI */
 char *
 bgp_vpn_rd_print(netdissect_options *ndo,
-                 const u_char *pptr) {
-
+                 const u_char *pptr)
+{
    /* allocate space for the largest possible string */
     static char rd[sizeof("xxxxxxxxxx:xxxxx (xxx.xxx.xxx.xxx:xxxxx)")];
     char *pos = rd;
@@ -716,8 +732,10 @@ decode_rt_routing_info(netdissect_options *ndo,
        ND_TCHECK(pptr[0]);
        plen = pptr[0];   /* get prefix length */
 
-       if (0 == plen)
-               return 1; /* default route target */
+       if (0 == plen) {
+               snprintf(buf, buflen, "default route target");
+               return 1;
+       }
 
        if (32 > plen)
                return -1;
@@ -806,7 +824,7 @@ decode_mdt_vpn_nlri(netdissect_options *ndo,
     ND_TCHECK(pptr[0]);
 
     /* if the NLRI is not predefined length, quit.*/
-    if (*pptr != MDT_VPN_NLRI_LEN * NBBY)
+    if (*pptr != MDT_VPN_NLRI_LEN * 8)
        return -1;
     pptr++;
 
@@ -948,21 +966,21 @@ trunc:
  * the buffer would have overflowed; again, set buflen to 0 in
  * that case.
  */
-#define UPDATE_BUF_BUFLEN(buf, buflen, strlen) \
-    if (strlen<0) \
+#define UPDATE_BUF_BUFLEN(buf, buflen, stringlen) \
+    if (stringlen<0) \
                buflen=0; \
-    else if ((u_int)strlen>buflen) \
+    else if ((u_int)stringlen>buflen) \
         buflen=0; \
     else { \
-        buflen-=strlen; \
-       buf+=strlen; \
+        buflen-=stringlen; \
+       buf+=stringlen; \
     }
 
 static int
 decode_labeled_vpn_l2(netdissect_options *ndo,
                       const u_char *pptr, char *buf, u_int buflen)
 {
-        int plen,tlen,strlen,tlv_type,tlv_len,ttlv_len;
+        int plen,tlen,stringlen,tlv_type,tlv_len,ttlv_len;
 
        ND_TCHECK2(pptr[0], 2);
         plen=EXTRACT_16BITS(pptr);
@@ -976,12 +994,12 @@ decode_labeled_vpn_l2(netdissect_options *ndo,
            /* assume AD-only with RD, BGPNH */
            ND_TCHECK2(pptr[0],12);
            buf[0]='\0';
-           strlen=snprintf(buf, buflen, "RD: %s, BGPNH: %s",
-                           bgp_vpn_rd_print(ndo, pptr),
-                           /* need something like getname(ndo, ) here */
-                           getname(ndo, pptr+8)
-                           );
-           UPDATE_BUF_BUFLEN(buf, buflen, strlen);
+           stringlen=snprintf(buf, buflen, "RD: %s, BGPNH: %s",
+                              bgp_vpn_rd_print(ndo, pptr),
+                              /* need something like getname(ndo, ) here */
+                              getname(ndo, pptr+8)
+                              );
+           UPDATE_BUF_BUFLEN(buf, buflen, stringlen);
            pptr+=12;
            tlen-=12;
            return plen;
@@ -991,12 +1009,12 @@ decode_labeled_vpn_l2(netdissect_options *ndo,
 
            ND_TCHECK2(pptr[0],15);
            buf[0]='\0';
-           strlen=snprintf(buf, buflen, "RD: %s, CE-ID: %u, Label-Block Offset: %u, Label Base %u",
-                           bgp_vpn_rd_print(ndo, pptr),
-                           EXTRACT_16BITS(pptr+8),
-                           EXTRACT_16BITS(pptr+10),
-                           EXTRACT_24BITS(pptr+12)>>4); /* the label is offsetted by 4 bits so lets shift it right */
-           UPDATE_BUF_BUFLEN(buf, buflen, strlen);
+           stringlen=snprintf(buf, buflen, "RD: %s, CE-ID: %u, Label-Block Offset: %u, Label Base %u",
+                              bgp_vpn_rd_print(ndo, pptr),
+                              EXTRACT_16BITS(pptr+8),
+                              EXTRACT_16BITS(pptr+10),
+                              EXTRACT_24BITS(pptr+12)>>4); /* the label is offsetted by 4 bits so lets shift it right */
+           UPDATE_BUF_BUFLEN(buf, buflen, stringlen);
            pptr+=15;
            tlen-=15;
 
@@ -1013,27 +1031,27 @@ decode_labeled_vpn_l2(netdissect_options *ndo,
                switch(tlv_type) {
                case 1:
                    if (buflen!=0) {
-                       strlen=snprintf(buf,buflen, "\n\t\tcircuit status vector (%u) length: %u: 0x",
-                                       tlv_type,
-                                       tlv_len);
-                       UPDATE_BUF_BUFLEN(buf, buflen, strlen);
+                       stringlen=snprintf(buf,buflen, "\n\t\tcircuit status vector (%u) length: %u: 0x",
+                                          tlv_type,
+                                          tlv_len);
+                       UPDATE_BUF_BUFLEN(buf, buflen, stringlen);
                    }
                    ttlv_len=ttlv_len/8+1; /* how many bytes do we need to read ? */
                    while (ttlv_len>0) {
                        ND_TCHECK(pptr[0]);
                        if (buflen!=0) {
-                           strlen=snprintf(buf,buflen, "%02x",*pptr++);
-                           UPDATE_BUF_BUFLEN(buf, buflen, strlen);
+                           stringlen=snprintf(buf,buflen, "%02x",*pptr++);
+                           UPDATE_BUF_BUFLEN(buf, buflen, stringlen);
                        }
                        ttlv_len--;
                    }
                    break;
                default:
                    if (buflen!=0) {
-                       strlen=snprintf(buf,buflen, "\n\t\tunknown TLV #%u, length: %u",
-                                       tlv_type,
-                                       tlv_len);
-                       UPDATE_BUF_BUFLEN(buf, buflen, strlen);
+                       stringlen=snprintf(buf,buflen, "\n\t\tunknown TLV #%u, length: %u",
+                                          tlv_type,
+                                          tlv_len);
+                       UPDATE_BUF_BUFLEN(buf, buflen, stringlen);
                    }
                    break;
                }
@@ -1051,7 +1069,6 @@ trunc:
         return -2;
 }
 
-#ifdef INET6
 int
 decode_prefix6(netdissect_options *ndo,
                const u_char *pd, u_int itemlen, char *buf, u_int buflen)
@@ -1168,7 +1185,6 @@ decode_labeled_vpn_prefix6(netdissect_options *ndo,
 trunc:
        return -2;
 }
-#endif
 
 static int
 decode_clnp_prefix(netdissect_options *ndo,
@@ -1191,7 +1207,7 @@ decode_clnp_prefix(netdissect_options *ndo,
                        ((0xff00 >> (plen % 8)) & 0xff);
        }
        snprintf(buf, buflen, "%s/%d",
-                 isonsap_string(addr,(plen + 7) / 8),
+                 isonsap_string(ndo, addr,(plen + 7) / 8),
                  plen);
 
        return 1 + (plen + 7) / 8;
@@ -1228,7 +1244,7 @@ decode_labeled_vpn_clnp_prefix(netdissect_options *ndo,
         /* the label may get offsetted by 4 bits so lets shift it right */
        snprintf(buf, buflen, "RD: %s, %s/%d, label:%u %s",
                  bgp_vpn_rd_print(ndo, pptr+4),
-                 isonsap_string(addr,(plen + 7) / 8),
+                 isonsap_string(ndo, addr,(plen + 7) / 8),
                  plen,
                  EXTRACT_24BITS(pptr+1)>>4,
                  ((pptr[3]&1)==0) ? "(BOGUS: Bottom of Stack NOT set!)" : "(bottom)" );
@@ -1312,7 +1328,6 @@ bgp_attr_print(netdissect_options *ndo,
        u_int tlen;
        const u_char *tptr;
        char buf[MAXHOSTNAMELEN + 100];
-       char tokbuf[TOKBUFSIZE];
         int  as_size;
 
         tptr = pptr;
@@ -1324,10 +1339,9 @@ bgp_attr_print(netdissect_options *ndo,
                        ND_PRINT((ndo, "invalid len"));
                else {
                        ND_TCHECK(*tptr);
-                       ND_PRINT((ndo, "%s", tok2strbuf(bgp_origin_values,
+                       ND_PRINT((ndo, "%s", tok2str(bgp_origin_values,
                                                "Unknown Origin Typecode",
-                                               tptr[0],
-                                               tokbuf, sizeof(tokbuf))));
+                                               tptr[0])));
                }
                break;
 
@@ -1358,9 +1372,8 @@ bgp_attr_print(netdissect_options *ndo,
 
                while (tptr < pptr + len) {
                        ND_TCHECK(tptr[0]);
-                        ND_PRINT((ndo, "%s", tok2strbuf(bgp_as_path_segment_open_values,
-                                               "?", tptr[0],
-                                               tokbuf, sizeof(tokbuf))));
+                        ND_PRINT((ndo, "%s", tok2str(bgp_as_path_segment_open_values,
+                                               "?", tptr[0])));
                         for (i = 0; i < tptr[1] * as_size; i += as_size) {
                             ND_TCHECK2(tptr[2 + i], as_size);
                            ND_PRINT((ndo, "%s ",
@@ -1370,9 +1383,8 @@ bgp_attr_print(netdissect_options *ndo,
                                EXTRACT_32BITS(&tptr[2 + i]))));
                         }
                        ND_TCHECK(tptr[0]);
-                        ND_PRINT((ndo, "%s", tok2strbuf(bgp_as_path_segment_close_values,
-                                               "?", tptr[0],
-                                               tokbuf, sizeof(tokbuf))));
+                        ND_PRINT((ndo, "%s", tok2str(bgp_as_path_segment_close_values,
+                                               "?", tptr[0])));
                         ND_TCHECK(tptr[1]);
                         tptr += 2 + tptr[1] * as_size;
                }
@@ -1487,12 +1499,10 @@ bgp_attr_print(netdissect_options *ndo,
                safi = tptr[2];
 
                 ND_PRINT((ndo, "\n\t    AFI: %s (%u), %sSAFI: %s (%u)",
-                       tok2strbuf(af_values, "Unknown AFI", af,
-                                 tokbuf, sizeof(tokbuf)),
+                       tok2str(af_values, "Unknown AFI", af),
                        af,
                        (safi>128) ? "vendor specific " : "", /* 128 is meanwhile wellknown */
-                       tok2strbuf(bgp_safi_values, "Unknown SAFI", safi,
-                                 tokbuf, sizeof(tokbuf)),
+                       tok2str(bgp_safi_values, "Unknown SAFI", safi),
                        safi));
 
                 switch(af<<8 | safi) {
@@ -1506,7 +1516,6 @@ bgp_attr_print(netdissect_options *ndo,
                 case (AFNUM_INET<<8 | SAFNUM_VPNUNIMULTICAST):
                 case (AFNUM_INET<<8 | SAFNUM_MULTICAST_VPN):
                case (AFNUM_INET<<8 | SAFNUM_MDT):
-#ifdef INET6
                 case (AFNUM_INET6<<8 | SAFNUM_UNICAST):
                 case (AFNUM_INET6<<8 | SAFNUM_MULTICAST):
                 case (AFNUM_INET6<<8 | SAFNUM_UNIMULTICAST):
@@ -1514,7 +1523,6 @@ bgp_attr_print(netdissect_options *ndo,
                 case (AFNUM_INET6<<8 | SAFNUM_VPNUNICAST):
                 case (AFNUM_INET6<<8 | SAFNUM_VPNMULTICAST):
                 case (AFNUM_INET6<<8 | SAFNUM_VPNUNIMULTICAST):
-#endif
                 case (AFNUM_NSAP<<8 | SAFNUM_UNICAST):
                 case (AFNUM_NSAP<<8 | SAFNUM_MULTICAST):
                 case (AFNUM_NSAP<<8 | SAFNUM_UNIMULTICAST):
@@ -1582,7 +1590,6 @@ bgp_attr_print(netdissect_options *ndo,
                                 tptr += (sizeof(struct in_addr)+BGP_VPN_RD_LEN);
                             }
                             break;
-#ifdef INET6
                         case (AFNUM_INET6<<8 | SAFNUM_UNICAST):
                         case (AFNUM_INET6<<8 | SAFNUM_MULTICAST):
                         case (AFNUM_INET6<<8 | SAFNUM_UNIMULTICAST):
@@ -1612,7 +1619,6 @@ bgp_attr_print(netdissect_options *ndo,
                                 tptr += (sizeof(struct in6_addr)+BGP_VPN_RD_LEN);
                             }
                             break;
-#endif
                         case (AFNUM_VPLS<<8 | SAFNUM_VPLS):
                         case (AFNUM_L2VPN<<8 | SAFNUM_VPNUNICAST):
                         case (AFNUM_L2VPN<<8 | SAFNUM_VPNMULTICAST):
@@ -1631,7 +1637,7 @@ bgp_attr_print(netdissect_options *ndo,
                         case (AFNUM_NSAP<<8 | SAFNUM_MULTICAST):
                         case (AFNUM_NSAP<<8 | SAFNUM_UNIMULTICAST):
                             ND_TCHECK2(tptr[0], tlen);
-                            ND_PRINT((ndo, "%s", isonsap_string(tptr, tlen)));
+                            ND_PRINT((ndo, "%s", isonsap_string(ndo, tptr, tlen)));
                             tptr += tlen;
                             tlen = 0;
                             break;
@@ -1646,15 +1652,13 @@ bgp_attr_print(netdissect_options *ndo,
                                 ND_TCHECK2(tptr[0], tlen);
                                 ND_PRINT((ndo, "RD: %s, %s",
                                        bgp_vpn_rd_print(ndo, tptr),
-                                       isonsap_string(tptr+BGP_VPN_RD_LEN,tlen-BGP_VPN_RD_LEN)));
+                                       isonsap_string(ndo, tptr+BGP_VPN_RD_LEN,tlen-BGP_VPN_RD_LEN)));
                                 /* rfc986 mapped IPv4 address ? */
                                 if (EXTRACT_32BITS(tptr+BGP_VPN_RD_LEN) ==  0x47000601)
                                     ND_PRINT((ndo, " = %s", getname(ndo, tptr+BGP_VPN_RD_LEN+4)));
-#ifdef INET6
                                 /* rfc1888 mapped IPv6 address ? */
                                 else if (EXTRACT_24BITS(tptr+BGP_VPN_RD_LEN) ==  0x350000)
                                     ND_PRINT((ndo, " = %s", getname6(ndo, tptr+BGP_VPN_RD_LEN+3)));
-#endif
                                 tptr += tlen;
                                 tlen = 0;
                             }
@@ -1755,7 +1759,6 @@ bgp_attr_print(netdissect_options *ndo,
                         else
                             ND_PRINT((ndo, "\n\t      %s", buf));
                       break;
-#ifdef INET6
                     case (AFNUM_INET6<<8 | SAFNUM_UNICAST):
                     case (AFNUM_INET6<<8 | SAFNUM_MULTICAST):
                     case (AFNUM_INET6<<8 | SAFNUM_UNIMULTICAST):
@@ -1791,7 +1794,6 @@ bgp_attr_print(netdissect_options *ndo,
                         else
                             ND_PRINT((ndo, "\n\t      %s", buf));
                         break;
-#endif
                     case (AFNUM_VPLS<<8 | SAFNUM_VPLS):
                     case (AFNUM_L2VPN<<8 | SAFNUM_VPNUNICAST):
                     case (AFNUM_L2VPN<<8 | SAFNUM_VPNMULTICAST):
@@ -1848,12 +1850,10 @@ bgp_attr_print(netdissect_options *ndo,
                safi = tptr[2];
 
                 ND_PRINT((ndo, "\n\t    AFI: %s (%u), %sSAFI: %s (%u)",
-                       tok2strbuf(af_values, "Unknown AFI", af,
-                                 tokbuf, sizeof(tokbuf)),
+                       tok2str(af_values, "Unknown AFI", af),
                        af,
                        (safi>128) ? "vendor specific " : "", /* 128 is meanwhile wellknown */
-                       tok2strbuf(bgp_safi_values, "Unknown SAFI", safi,
-                                 tokbuf, sizeof(tokbuf)),
+                       tok2str(bgp_safi_values, "Unknown SAFI", safi),
                        safi));
 
                 if (len == BGP_MP_NLRI_MINSIZE)
@@ -1898,7 +1898,6 @@ bgp_attr_print(netdissect_options *ndo,
                         else
                             ND_PRINT((ndo, "\n\t      %s", buf));
                         break;
-#ifdef INET6
                     case (AFNUM_INET6<<8 | SAFNUM_UNICAST):
                     case (AFNUM_INET6<<8 | SAFNUM_MULTICAST):
                     case (AFNUM_INET6<<8 | SAFNUM_UNIMULTICAST):
@@ -1934,7 +1933,6 @@ bgp_attr_print(netdissect_options *ndo,
                         else
                             ND_PRINT((ndo, "\n\t      %s", buf));
                         break;
-#endif
                     case (AFNUM_VPLS<<8 | SAFNUM_VPLS):
                     case (AFNUM_L2VPN<<8 | SAFNUM_VPNUNICAST):
                     case (AFNUM_L2VPN<<8 | SAFNUM_VPNMULTICAST):
@@ -2014,9 +2012,9 @@ bgp_attr_print(netdissect_options *ndo,
                     extd_comm=EXTRACT_16BITS(tptr);
 
                    ND_PRINT((ndo, "\n\t    %s (0x%04x), Flags [%s]",
-                          tok2strbuf(bgp_extd_comm_subtype_values,
+                          tok2str(bgp_extd_comm_subtype_values,
                                      "unknown extd community typecode",
-                                     extd_comm, tokbuf, sizeof(tokbuf)),
+                                     extd_comm),
                           extd_comm,
                           bittok2str(bgp_extd_comm_flag_values, "none", extd_comm)));
 
@@ -2061,19 +2059,17 @@ bgp_attr_print(netdissect_options *ndo,
                     case BGP_EXT_COM_OSPF_RTYPE2:
                         ND_PRINT((ndo, ": area:%s, router-type:%s, metric-type:%s%s",
                                getname(ndo, tptr+2),
-                               tok2strbuf(bgp_extd_comm_ospf_rtype_values,
+                               tok2str(bgp_extd_comm_ospf_rtype_values,
                                          "unknown (0x%02x)",
-                                         *(tptr+6),
-                                         tokbuf, sizeof(tokbuf)),
+                                         *(tptr+6)),
                                (*(tptr+7) &  BGP_OSPF_RTYPE_METRIC_TYPE) ? "E2" : "",
                                ((*(tptr+6) == BGP_OSPF_RTYPE_EXT) || (*(tptr+6) == BGP_OSPF_RTYPE_NSSA)) ? "E1" : ""));
                         break;
                     case BGP_EXT_COM_L2INFO:
                         ND_PRINT((ndo, ": %s Control Flags [0x%02x]:MTU %u",
-                               tok2strbuf(l2vpn_encaps_values,
+                               tok2str(l2vpn_encaps_values,
                                          "unknown encaps",
-                                         *(tptr+2),
-                                         tokbuf, sizeof(tokbuf)),
+                                         *(tptr+2)),
                                        *(tptr+3),
                                EXTRACT_16BITS(tptr+4)));
                         break;
@@ -2148,6 +2144,49 @@ bgp_attr_print(netdissect_options *ndo,
                 }
                 break;
         }
+       case BGPTYPE_AIGP:
+       {
+               uint8_t type;
+               uint16_t length;
+
+               ND_TCHECK2(tptr[0], 3);
+
+               tlen = len;
+
+               while (tlen >= 3) {
+
+                   type = *tptr;
+                   length = EXTRACT_16BITS(tptr+1);
+
+                   ND_PRINT((ndo, "\n\t    %s TLV (%u), length %u",
+                             tok2str(bgp_aigp_values, "Unknown", type),
+                             type, length));
+
+
+                   /*
+                    * Check if we can read the TLV data.
+                    */
+                   ND_TCHECK2(tptr[3], length - 3);
+
+                   switch (type) {
+
+                   case BGP_AIGP_TLV:
+                       ND_TCHECK2(tptr[3], 8);
+                       ND_PRINT((ndo, ", metric %" PRIu64,
+                                 EXTRACT_64BITS(tptr+3)));
+                       break;
+
+                   default:
+                       if (ndo->ndo_vflag <= 1) {
+                           print_unknown_data(ndo, tptr+3,"\n\t      ", length-3);
+                       }
+                   }
+
+                   tptr += length;
+                   tlen -= length;
+               }
+               break;
+       }
         case BGPTYPE_ATTR_SET:
                 ND_TCHECK2(tptr[0], 4);
                 if (len < 4)
@@ -2158,7 +2197,7 @@ bgp_attr_print(netdissect_options *ndo,
                 len -=4;
 
                 while (len) {
-                    u_int aflags, atype, alenlen, alen;
+                    u_int aflags, alenlen, alen;
 
                     ND_TCHECK2(tptr[0], 2);
                     if (len < 2)
@@ -2176,9 +2215,8 @@ bgp_attr_print(netdissect_options *ndo,
                     len -= alenlen;
 
                     ND_PRINT((ndo, "\n\t      %s (%u), length: %u",
-                           tok2strbuf(bgp_attr_values,
-                                      "Unknown Attribute", atype,
-                                      tokbuf, sizeof(tokbuf)),
+                           tok2str(bgp_attr_values,
+                                      "Unknown Attribute", atype),
                            atype,
                            alen));
 
@@ -2222,8 +2260,6 @@ static void
 bgp_capabilities_print(netdissect_options *ndo,
                        const u_char *opt, int caps_len)
 {
-       char tokbuf[TOKBUFSIZE];
-       char tokbuf2[TOKBUFSIZE];
        int cap_type, cap_len, tcap_len, cap_offset;
         int i = 0;
 
@@ -2233,21 +2269,19 @@ bgp_capabilities_print(netdissect_options *ndo,
                 cap_len=opt[i+1];
                 tcap_len=cap_len;
                 ND_PRINT((ndo, "\n\t      %s (%u), length: %u",
-                       tok2strbuf(bgp_capcode_values, "Unknown",
-                                  cap_type, tokbuf, sizeof(tokbuf)),
+                       tok2str(bgp_capcode_values, "Unknown",
+                                  cap_type),
                        cap_type,
                        cap_len));
                 ND_TCHECK2(opt[i+2], cap_len);
                 switch (cap_type) {
                 case BGP_CAPCODE_MP:
                     ND_PRINT((ndo, "\n\t\tAFI %s (%u), SAFI %s (%u)",
-                           tok2strbuf(af_values, "Unknown",
-                                      EXTRACT_16BITS(opt+i+2),
-                                      tokbuf, sizeof(tokbuf)),
+                           tok2str(af_values, "Unknown",
+                                      EXTRACT_16BITS(opt+i+2)),
                            EXTRACT_16BITS(opt+i+2),
-                           tok2strbuf(bgp_safi_values, "Unknown",
-                                      opt[i+5],
-                                      tokbuf, sizeof(tokbuf)),
+                           tok2str(bgp_safi_values, "Unknown",
+                                      opt[i+5]),
                            opt[i+5]));
                     break;
                 case BGP_CAPCODE_RESTART:
@@ -2258,13 +2292,11 @@ bgp_capabilities_print(netdissect_options *ndo,
                     cap_offset=4;
                     while(tcap_len>=4) {
                         ND_PRINT((ndo, "\n\t\t  AFI %s (%u), SAFI %s (%u), Forwarding state preserved: %s",
-                               tok2strbuf(af_values,"Unknown",
-                                          EXTRACT_16BITS(opt+i+cap_offset),
-                                          tokbuf, sizeof(tokbuf)),
+                               tok2str(af_values,"Unknown",
+                                          EXTRACT_16BITS(opt+i+cap_offset)),
                                EXTRACT_16BITS(opt+i+cap_offset),
-                               tok2strbuf(bgp_safi_values,"Unknown",
-                                          opt[i+cap_offset+2],
-                                          tokbuf2, sizeof(tokbuf2)),
+                               tok2str(bgp_safi_values,"Unknown",
+                                          opt[i+cap_offset+2]),
                                opt[i+cap_offset+2],
                                ((opt[i+cap_offset+3])&0x80) ? "yes" : "no" ));
                         tcap_len-=4;
@@ -2285,6 +2317,28 @@ bgp_capabilities_print(netdissect_options *ndo,
                             EXTRACT_32BITS(opt + i + 2))));
                     }
                     break;
+                case BGP_CAPCODE_ADD_PATH:
+                    cap_offset=2;
+                    if (tcap_len == 0) {
+                        ND_PRINT((ndo, " (bogus)")); /* length */
+                        break;
+                    }
+                    while (tcap_len > 0) {
+                        if (tcap_len < 4) {
+                            ND_PRINT((ndo, "\n\t\t(invalid)"));
+                            break;
+                        }
+                        ND_PRINT((ndo, "\n\t\tAFI %s (%u), SAFI %s (%u), Send/Receive: %s",
+                                  tok2str(af_values,"Unknown",EXTRACT_16BITS(opt+i+cap_offset)),
+                                  EXTRACT_16BITS(opt+i+cap_offset),
+                                  tok2str(bgp_safi_values,"Unknown",opt[i+cap_offset+2]),
+                                  opt[i+cap_offset+2],
+                                  tok2str(bgp_add_path_recvsend,"Bogus (0x%02x)",opt[i+cap_offset+3])
+                        ));
+                        tcap_len-=4;
+                        cap_offset+=4;
+                    }
+                    break;
                 default:
                     ND_PRINT((ndo, "\n\t\tno decoder for Capability %u",
                            cap_type));
@@ -2311,7 +2365,6 @@ bgp_open_print(netdissect_options *ndo,
        struct bgp_opt bgpopt;
        const u_char *opt;
        int i;
-       char tokbuf[TOKBUFSIZE];
 
        ND_TCHECK2(dat[0], BGP_OPEN_SIZE);
        memcpy(&bgpo, dat, BGP_OPEN_SIZE);
@@ -2341,9 +2394,8 @@ bgp_open_print(netdissect_options *ndo,
                }
 
                ND_PRINT((ndo, "\n\t    Option %s (%u), length: %u",
-                      tok2strbuf(bgp_opt_values,"Unknown",
-                                 bgpopt.bgpopt_type,
-                                 tokbuf, sizeof(tokbuf)),
+                      tok2str(bgp_opt_values,"Unknown",
+                                 bgpopt.bgpopt_type),
                       bgpopt.bgpopt_type,
                       bgpopt.bgpopt_len));
 
@@ -2377,11 +2429,6 @@ bgp_update_print(netdissect_options *ndo,
        int withdrawn_routes_len;
        int len;
        int i;
-       char tokbuf[TOKBUFSIZE];
-#ifndef INET6
-       char buf[MAXHOSTNAMELEN + 100];
-       int wpfx;
-#endif
 
        ND_TCHECK2(dat[0], BGP_SIZE);
        if (length < BGP_SIZE)
@@ -2406,36 +2453,9 @@ bgp_update_print(netdissect_options *ndo,
                ND_TCHECK2(p[0], withdrawn_routes_len);
                if (length < withdrawn_routes_len)
                        goto trunc;
-#ifdef INET6
                ND_PRINT((ndo, "\n\t  Withdrawn routes: %d bytes", withdrawn_routes_len));
                p += withdrawn_routes_len;
                length -= withdrawn_routes_len;
-#else
-               if (withdrawn_routes_len < 2)
-                       goto trunc;
-               length -= 2;
-               withdrawn_routes_len -= 2;
-
-
-               ND_PRINT((ndo, "\n\t  Withdrawn routes:"));
-
-               while(withdrawn_routes_len > 0) {
-                       wpfx = decode_prefix4(ndo, p, withdrawn_routes_len, buf, sizeof(buf));
-                       if (wpfx == -1) {
-                               ND_PRINT((ndo, "\n\t    (illegal prefix length)"));
-                               break;
-                       } else if (wpfx == -2)
-                               goto trunc;
-                       else if (wpfx == -3)
-                               goto trunc; /* bytes left, but not enough */
-                       else {
-                               ND_PRINT((ndo, "\n\t    %s", buf));
-                               p += wpfx;
-                               length -= wpfx;
-                               withdrawn_routes_len -= wpfx;
-                       }
-               }
-#endif
        }
 
        ND_TCHECK2(p[0], 2);
@@ -2478,9 +2498,8 @@ bgp_update_print(netdissect_options *ndo,
                        length -= alenlen;
 
                        ND_PRINT((ndo, "\n\t  %s (%u), length: %u",
-                              tok2strbuf(bgp_attr_values, "Unknown Attribute",
-                                        atype,
-                                        tokbuf, sizeof(tokbuf)),
+                              tok2str(bgp_attr_values, "Unknown Attribute",
+                                        atype),
                               atype,
                               alen));
 
@@ -2544,8 +2563,6 @@ bgp_notification_print(netdissect_options *ndo,
 {
        struct bgp_notification bgpn;
        const u_char *tptr;
-       char tokbuf[TOKBUFSIZE];
-       char tokbuf2[TOKBUFSIZE];
 
        ND_TCHECK2(dat[0], BGP_NOTIFICATION_SIZE);
        memcpy(&bgpn, dat, BGP_NOTIFICATION_SIZE);
@@ -2555,39 +2572,39 @@ bgp_notification_print(netdissect_options *ndo,
             return;
 
        ND_PRINT((ndo, ", %s (%u)",
-              tok2strbuf(bgp_notify_major_values, "Unknown Error",
-                         bgpn.bgpn_major, tokbuf, sizeof(tokbuf)),
+              tok2str(bgp_notify_major_values, "Unknown Error",
+                         bgpn.bgpn_major),
               bgpn.bgpn_major));
 
         switch (bgpn.bgpn_major) {
 
         case BGP_NOTIFY_MAJOR_MSG:
             ND_PRINT((ndo, ", subcode %s (%u)",
-                  tok2strbuf(bgp_notify_minor_msg_values, "Unknown",
-                             bgpn.bgpn_minor, tokbuf, sizeof(tokbuf)),
+                  tok2str(bgp_notify_minor_msg_values, "Unknown",
+                             bgpn.bgpn_minor),
                   bgpn.bgpn_minor));
             break;
         case BGP_NOTIFY_MAJOR_OPEN:
             ND_PRINT((ndo, ", subcode %s (%u)",
-                  tok2strbuf(bgp_notify_minor_open_values, "Unknown",
-                             bgpn.bgpn_minor, tokbuf, sizeof(tokbuf)),
+                  tok2str(bgp_notify_minor_open_values, "Unknown",
+                             bgpn.bgpn_minor),
                   bgpn.bgpn_minor));
             break;
         case BGP_NOTIFY_MAJOR_UPDATE:
             ND_PRINT((ndo, ", subcode %s (%u)",
-                  tok2strbuf(bgp_notify_minor_update_values, "Unknown",
-                             bgpn.bgpn_minor, tokbuf, sizeof(tokbuf)),
+                  tok2str(bgp_notify_minor_update_values, "Unknown",
+                             bgpn.bgpn_minor),
                   bgpn.bgpn_minor));
             break;
         case BGP_NOTIFY_MAJOR_CAP:
             ND_PRINT((ndo, " subcode %s (%u)",
-                  tok2strbuf(bgp_notify_minor_cap_values, "Unknown",
-                             bgpn.bgpn_minor, tokbuf, sizeof(tokbuf)),
+                  tok2str(bgp_notify_minor_cap_values, "Unknown",
+                             bgpn.bgpn_minor),
                   bgpn.bgpn_minor));
         case BGP_NOTIFY_MAJOR_CEASE:
             ND_PRINT((ndo, ", subcode %s (%u)",
-                  tok2strbuf(bgp_notify_minor_cease_values, "Unknown",
-                             bgpn.bgpn_minor, tokbuf, sizeof(tokbuf)),
+                  tok2str(bgp_notify_minor_cease_values, "Unknown",
+                             bgpn.bgpn_minor),
                   bgpn.bgpn_minor));
 
            /* draft-ietf-idr-cease-subcode-02 mentions optionally 7 bytes
@@ -2597,11 +2614,10 @@ bgp_notification_print(netdissect_options *ndo,
                tptr = dat + BGP_NOTIFICATION_SIZE;
                ND_TCHECK2(*tptr, 7);
                ND_PRINT((ndo, ", AFI %s (%u), SAFI %s (%u), Max Prefixes: %u",
-                      tok2strbuf(af_values, "Unknown",
-                                 EXTRACT_16BITS(tptr), tokbuf, sizeof(tokbuf)),
+                      tok2str(af_values, "Unknown",
+                                 EXTRACT_16BITS(tptr)),
                       EXTRACT_16BITS(tptr),
-                      tok2strbuf(bgp_safi_values, "Unknown", *(tptr+2),
-                                 tokbuf2, sizeof(tokbuf)),
+                      tok2str(bgp_safi_values, "Unknown", *(tptr+2)),
                       *(tptr+2),
                       EXTRACT_32BITS(tptr+3)));
            }
@@ -2617,11 +2633,9 @@ trunc:
 
 static void
 bgp_route_refresh_print(netdissect_options *ndo,
-                        const u_char *pptr, int len) {
-
+                        const u_char *pptr, int len)
+{
         const struct bgp_route_refresh *bgp_route_refresh_header;
-       char tokbuf[TOKBUFSIZE];
-       char tokbuf2[TOKBUFSIZE];
 
        ND_TCHECK2(pptr[0], BGP_ROUTE_REFRESH_SIZE);
 
@@ -2632,15 +2646,13 @@ bgp_route_refresh_print(netdissect_options *ndo,
         bgp_route_refresh_header = (const struct bgp_route_refresh *)pptr;
 
         ND_PRINT((ndo, "\n\t  AFI %s (%u), SAFI %s (%u)",
-               tok2strbuf(af_values,"Unknown",
+               tok2str(af_values,"Unknown",
                          /* this stinks but the compiler pads the structure
                           * weird */
-                         EXTRACT_16BITS(&bgp_route_refresh_header->afi),
-                         tokbuf, sizeof(tokbuf)),
+                         EXTRACT_16BITS(&bgp_route_refresh_header->afi)),
                EXTRACT_16BITS(&bgp_route_refresh_header->afi),
-               tok2strbuf(bgp_safi_values,"Unknown",
-                         bgp_route_refresh_header->safi,
-                         tokbuf2, sizeof(tokbuf2)),
+               tok2str(bgp_safi_values,"Unknown",
+                         bgp_route_refresh_header->safi),
                bgp_route_refresh_header->safi));
 
         if (ndo->ndo_vflag > 1) {
@@ -2658,13 +2670,11 @@ bgp_header_print(netdissect_options *ndo,
                  const u_char *dat, int length)
 {
        struct bgp bgp;
-       char tokbuf[TOKBUFSIZE];
 
        ND_TCHECK2(dat[0], BGP_SIZE);
        memcpy(&bgp, dat, BGP_SIZE);
        ND_PRINT((ndo, "\n\t%s Message (%u), length: %u",
-               tok2strbuf(bgp_msg_values, "Unknown", bgp.bgp_type,
-                         tokbuf, sizeof(tokbuf)),
+               tok2str(bgp_msg_values, "Unknown", bgp.bgp_type),
                bgp.bgp_type,
                length));
 
@@ -2709,13 +2719,12 @@ bgp_print(netdissect_options *ndo,
        };
        struct bgp bgp;
        uint16_t hlen;
-       char tokbuf[TOKBUFSIZE];
 
        ep = dat + length;
        if (ndo->ndo_snapend < dat + length)
                ep = ndo->ndo_snapend;
 
-       ND_PRINT((ndo, ": BGP, length: %u", length));
+       ND_PRINT((ndo, ": BGP"));
 
         if (ndo->ndo_vflag < 1) /* lets be less chatty */
                 return;
@@ -2758,10 +2767,9 @@ bgp_print(netdissect_options *ndo,
                        start = p;
                } else {
                        ND_PRINT((ndo, "\n[|BGP %s]",
-                              tok2strbuf(bgp_msg_values,
+                              tok2str(bgp_msg_values,
                                          "Unknown Message Type",
-                                         bgp.bgp_type,
-                                         tokbuf, sizeof(tokbuf))));
+                                         bgp.bgp_type)));
                        break;
                }
        }