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included fix for suppressing bad behaviour due to signature-less manifests.

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This commit is contained in:
gardners 2012-05-22 17:33:33 +09:30
parent a9be08b0cc
commit 115cb942dc
1 changed files with 17 additions and 2 deletions
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19
rhizome_packetformats.c
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@ -337,10 +337,25 @@ int overlay_rhizome_saw_advertisements(int i,overlay_frame *f, long long now)
energy, everytime we see a manifest that we already have).
In fact, it would be better here to do a really rough and ready parser
to get the id and version fields out, and avoid the memory copies that
otherwise happen. */
otherwise happen.
But we do need to make sure that at least one signature is there.
*/
m=rhizome_read_manifest_file((char *)&f->payload->bytes[ofs],
manifest_length,RHIZOME_DONTVERIFY);
int importManifest=0;
/* Crude signature presence test */
for(i=m->manifest_all_bytes-1;i>0;i++)
if (!m->manifestdata[i]) {
/* A null in the middle says we have a signature */
break;
}
if (!i) {
/* ignore the announcement, but don't ignore other people
offering the same manifest */
WHY("Ignoring manifest announcment with no signature");
rhizome_manifest_free(m);
return 0;
}
int importManifest=0;
if (rhizome_ignore_manifest_check(m,(struct sockaddr_in *)f->recvaddr))
{
/* Ignoring manifest that has caused us problems recently */