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[tools/bgpgrep] Factor out code that cleans up current MRT record on success path. Improve code

This commit is contained in:
Lorenzo Cogotti 2021-08-01 15:09:45 +02:00
parent 77469130ed
commit 5b090d605e
2 changed files with 10 additions and 21 deletions
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2
tools/bgpgrep/bgpgrep.c
View File

@ -360,6 +360,8 @@ static void Bgpgrep_ProcessMrtDump(const char *filename)
break;
}
Bgp_ClearMrt(&S.rec);
}
// Don't need PEER_INDEX_TABLE anymore

29
tools/bgpgrep/bgpgrep_dump.c
View File

@ -17,7 +17,7 @@
#include <assert.h>
#include <string.h>
// NOTE: Each dump function is *RESPONSIBLE* to set S.dropEntryFrame
// NOTE: TABLE_DUMPV2 RIBs may alter S.dropMsgFrame
static void FixBgpAttributeTableForRib(Bgpattrtab tab, Boolean isRibv2)
{
@ -79,10 +79,10 @@ void BgpgrepD_Bgp4mp(void)
if (BGP4MP_ISSTATECHANGE(hdr->subtype)) {
OutputBgp4mp(hdr, NULL);
goto done;
return;
}
if (!BGP4MP_ISMESSAGE(hdr->subtype))
goto done; // don't care for anything else
return; // don't care for anything else
// NOTE: Optimizing BGP4MP to avoid message rebuild isn't worth the effort
@ -99,9 +99,6 @@ void BgpgrepD_Bgp4mp(void)
OutputBgp4mp(hdr, S.msg.table);
Bgp_ClearMsg(&S.msg);
done:
Bgp_ClearMrt(&S.rec);
}
static void OutputZebra(const Mrthdr *hdr, Bgpattrtab tab)
@ -118,17 +115,16 @@ void BgpgrepD_Zebra(void)
if (hdr->subtype == ZEBRA_STATE_CHANGE) {
OutputZebra(hdr, NULL);
goto done;
return;
}
if (!ZEBRA_ISMESSAGE(hdr->subtype))
goto done; // don't care for anything else
return; // don't care for anything else
if (S.isTrivialFilter) {
// FAST PATH - avoid rebuilding original message
BGP_CLRATTRTAB(S.msg.table);
OutputZebra(hdr, S.msg.table);
goto done;
return;
}
// FILTERING PATH - Setup filter
@ -145,9 +141,6 @@ void BgpgrepD_Zebra(void)
OutputZebra(hdr, S.msg.table);
Bgp_ClearMsg(&S.msg);
done:
Bgp_ClearMrt(&S.rec);
}
static void OutputRibv2(const Mrthdr *hdr,
@ -172,7 +165,7 @@ void BgpgrepD_TableDumpv2(void)
return;
}
if (!TABLE_DUMPV2_ISRIB(hdr->subtype))
goto done; // don't care for anything but RIBs
return; // don't care for anything but RIBs
// We may only dump record if we've got a PEER_INDEX_TABLE
if (!S.hasPeerIndex)
@ -221,9 +214,6 @@ void BgpgrepD_TableDumpv2(void)
Bgp_ClearMsg(&S.msg);
}
done:
Bgp_ClearMrt(&S.rec);
}
static void OutputRib(const Mrthdr *hdr, const Mrtribent *ent, Bgpattrtab tab)
@ -242,7 +232,7 @@ void BgpgrepD_TableDump(void)
// FAST PATH - No need to rebuild BGP
BGP_CLRATTRTAB(S.msg.table);
OutputRib(hdr, ent, S.msg.table);
goto done;
return;
}
// FILTERING PATH - Setup VM for TABLE_DUMP
@ -269,7 +259,4 @@ void BgpgrepD_TableDump(void)
}
Bgp_ClearMsg(&S.msg);
done:
Bgp_ClearMrt(&S.rec);
}