]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-bgp.c
Default to first interface from pcap_findalldevs()
[tcpdump] / print-bgp.c
index 7c7229996bd12e9a8585c41a85df262cd39e4fdc..fd25ba84cdbf6e475b40e3614374b2c9bfab9832 100644 (file)
 #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"
@@ -603,12 +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;
@@ -968,21 +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);
@@ -996,12 +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;
@@ -1011,12 +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;
 
@@ -1033,27 +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;
                }
@@ -1071,7 +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)
@@ -1188,7 +1185,6 @@ decode_labeled_vpn_prefix6(netdissect_options *ndo,
 trunc:
        return -2;
 }
-#endif
 
 static int
 decode_clnp_prefix(netdissect_options *ndo,
@@ -1211,7 +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;
@@ -1248,7 +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)" );
@@ -1520,7 +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):
@@ -1528,7 +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):
@@ -1596,7 +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):
@@ -1626,7 +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):
@@ -1645,7 +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;
@@ -1660,15 +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;
                             }
@@ -1769,7 +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):
@@ -1805,7 +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):
@@ -1910,7 +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):
@@ -1946,7 +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):
@@ -2160,8 +2146,8 @@ bgp_attr_print(netdissect_options *ndo,
         }
        case BGPTYPE_AIGP:
        {
-               u_int8_t type;
-               u_int16_t length;
+               uint8_t type;
+               uint16_t length;
 
                ND_TCHECK2(tptr[0], 3);
 
@@ -2211,7 +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)
@@ -2339,7 +2325,7 @@ bgp_capabilities_print(netdissect_options *ndo,
                     }
                     while (tcap_len > 0) {
                         if (tcap_len < 4) {
-                            ND_PRINT((ndo, "\n\t\t(malformed)"));
+                            ND_PRINT((ndo, "\n\t\t(invalid)"));
                             break;
                         }
                         ND_PRINT((ndo, "\n\t\tAFI %s (%u), SAFI %s (%u), Send/Receive: %s",
@@ -2443,10 +2429,6 @@ bgp_update_print(netdissect_options *ndo,
        int withdrawn_routes_len;
        int len;
        int i;
-#ifndef INET6
-       char buf[MAXHOSTNAMELEN + 100];
-       int wpfx;
-#endif
 
        ND_TCHECK2(dat[0], BGP_SIZE);
        if (length < BGP_SIZE)
@@ -2471,36 +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);