ndb/dns: handle dnskey RR's (thanks moody)
On 12/18/20, Jacob Moody wrote: > Hello, > > I recently ran in to some issues with pointing an unbound server towards a > 9front dns server as its upstream. > The parsing seemed to fail when ndb/dns received a DNSKEY RR from it's own > upstream source on behalf of unbound. > This patch catches and stores the DNSKEY from the upstream server to prevent > this.
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3 changed files with 7 additions and 0 deletions
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@ -275,6 +275,7 @@ convRR2M(RR *rp, uchar *p, uchar *ep, Dict *dp)
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NAME(rp->rmb->name);
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NAME(rp->rp->name);
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break;
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case Tdnskey:
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case Tkey:
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USHORT(rp->key->flags);
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UCHAR(rp->key->proto);
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@ -448,6 +448,7 @@ retry:
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rp->rmb = dnlookup(NAME(dname), Cin, 1);
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rp->rp = dnlookup(NAME(dname), Cin, 1);
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break;
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case Tdnskey:
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case Tkey:
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USHORT(rp->key->flags);
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UCHAR(rp->key->proto);
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@ -893,6 +893,7 @@ rrcopy(RR *rp, RR **last)
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nrp->srv = srv;
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*srv = *rp->srv;
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break;
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case Tdnskey:
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case Tkey:
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key = nrp->key;
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*nrp = *rp;
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@ -1273,6 +1274,7 @@ rrfmt(Fmt *f)
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case Trp:
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fmtprint(&fstr, "\t%s %s", dnname(rp->rmb), dnname(rp->rp));
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break;
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case Tdnskey:
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case Tkey:
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if (rp->key == nil)
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fmtprint(&fstr, "\t<null> <null> <null>");
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@ -1413,6 +1415,7 @@ rravfmt(Fmt *f)
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idnname(rp->rmb, buf, sizeof(buf)),
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idnname(rp->rp, buf, sizeof(buf)));
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break;
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case Tdnskey:
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case Tkey:
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if (rp->key == nil)
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fmtprint(&fstr, " flags=<null> proto=<null> alg=<null>");
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@ -1951,6 +1954,7 @@ rralloc(int type)
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rp->srv = emalloc(sizeof(*rp->srv));
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setmalloctag(rp->srv, rp->pc);
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break;
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case Tdnskey:
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case Tkey:
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rp->key = emalloc(sizeof(*rp->key));
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setmalloctag(rp->key, rp->pc);
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@ -1994,6 +1998,7 @@ rrfree(RR *rp)
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memset(rp->srv, 0, sizeof *rp->srv); /* cause trouble */
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free(rp->srv);
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break;
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case Tdnskey:
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case Tkey:
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free(rp->key->data);
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memset(rp->key, 0, sizeof *rp->key); /* cause trouble */
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