From: Lu Feng <lu.feng@6wind.com>
Date: Wed, 19 Feb 2014 09:05:05 +0000 (+0000)
Subject: isisd: ignore the unrecognized TLVs
X-Git-Tag: frr-2.0-rc1~1580
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=fd6f39a514093973bb0fb39484a0ed9615534c89;p=mirror%2Ffrr.git

isisd: ignore the unrecognized TLVs

When processing LSPDUs, the unrecognized TLVs/sub-TLVs should be
silently ignored.

In parse_tlvs(), ISIS_WARNING is returned once an unrecognized TLV
exists. It breaks the processing in lsp_authentication_check() and
lsp_update_data(). So remove it.

Signed-off-by: Feng Lu <lu.feng@6wind.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
---

diff --git a/isisd/isis_tlv.c b/isisd/isis_tlv.c
index 2c2415ae02..bbfa5d812a 100644
--- a/isisd/isis_tlv.c
+++ b/isisd/isis_tlv.c
@@ -742,7 +742,6 @@ parse_tlvs (char *areatag, u_char * stream, int size, u_int32_t * expected,
 	  zlog_warn ("ISIS-TLV (%s): unsupported TLV type %d, length %d",
 		     areatag, type, length);
 
-	  retval = ISIS_WARNING;
 	  pnt += length;
 	  break;
 	}