Attachment 175678 Details for Bug 213423 – Patch for contrib/tcpdump/print-bgp.c to decode Large BGP Communities

[patch] Patch for contrib/tcpdump/print-bgp.c to decode Large BGP Communities

tcpdump-print-bgp-large-community.patch (text/plain), 1.39 KB, created by Job Snijders on 2016-10-12 19:43:10 UTC

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Creator: Job Snijders

Created: 2016-10-12 19:43:10 UTC

Size: 1.39 KB

patch

obsolete

>--- print-bgp.c	2016-10-12 21:27:08.000000000 +0200
>+++ print-bgp-large.c	2016-10-12 21:26:01.000000000 +0200
>@@ -132,6 +132,7 @@
> #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_LARGE_COMMUNITIES	30      /* draft-ietf-idr-large-community */
> #define BGPTYPE_ATTR_SET               128      /* draft-marques-ppvpn-ibgp */
> 
> #define BGP_MP_NLRI_MINSIZE              3       /* End of RIB Marker detection */
>@@ -157,6 +158,7 @@
>     { BGPTYPE_EXTD_COMMUNITIES, "Extended Community"},
>     { BGPTYPE_PMSI_TUNNEL,      "PMSI Tunnel"},
>     { BGPTYPE_ATTR_SET,         "Attribute Set"},
>+    { BGPTYPE_LARGE_COMMUNITIES,	"Large Community"},
>     { 255,                      "Reserved for development"},
>     { 0, NULL}
> };
>@@ -1462,6 +1464,22 @@
>                         tptr +=4;
> 		}
> 		break;
>+	case BGPTYPE_LARGE_COMMUNITIES:
>+		if (len == 0 || len % 12) {
>+			ND_PRINT((ndo, "invalid len"));
>+			break;
>+		}
>+		while (tlen>0) {
>+			ND_TCHECK2(tptr[0], 12);
>+			ND_PRINT((ndo, "%u:%u:%u%s",
>+				EXTRACT_32BITS(tptr),
>+				EXTRACT_32BITS(tptr + 4),
>+				EXTRACT_32BITS(tptr + 8),
>+				(tlen>12) ? ", " : ""));
>+			tlen -= 12;
>+			tptr += 12;
>+		}
>+		break;
>         case BGPTYPE_ORIGINATOR_ID:
> 		if (len != 4) {
> 			ND_PRINT((ndo, "invalid len"));

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Attachments on bug 213423: 175678