diff options
| author |   Dave Barach <dave@barachs.net> | 2019-08-19 18:15:51 -0400 |
|---|---|---|
| committer | Dave Barach <dave@barachs.net> | 2019-08-19 18:23:35 -0400 |
| commit | e8d2dcb6a619f0884ece2284a286f21b3aa77e5a (patch) | |
| tree | b0c4b3d6013331f4fa4ed9dca59c918cbf52bc70 /src/vnet/dns/dns.h | |
| parent | dee4c2e40333580a5a8817ed217807db48224399 (diff) | |
dns: handle multiple replies for single requests
The world is a mess. A single DNS request may yield multiple, subtly
different responses; all with the same DNS protocol-level ID.
Last response wins in terms of what ends up in the cache.
First response wins in terms of the response sent to the client. Hard
to do otherwise since we have no clue that more than one answer will
be forthcoming.
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I3175a40eb1fea237048d16b852a430f5ab51eaef
Diffstat (limited to 'src/vnet/dns/dns.h')
| -rw-r--r-- | src/vnet/dns/dns.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/vnet/dns/dns.h b/src/vnet/dns/dns.h index e6944de0ca9..6d0901020f9 100644 --- a/src/vnet/dns/dns.h +++ b/src/vnet/dns/dns.h @@ -150,7 +150,9 @@ _(DISABLED, "DNS pkts punted (feature disabled)") \ _(PROCESSED, "DNS reply pkts processed") \ _(NO_ELT, "No DNS pool element") \ _(FORMAT_ERROR, "DNS format errors") \ -_(TEST_DROP, "DNS reply pkt dropped for test purposes") +_(TEST_DROP, "DNS reply pkt dropped for test purposes") \ +_(MULTIPLE_REPLY, "DNS multiple reply packets") \ +_(NO_UNRESOLVED_ENTRY, "No unresolved entry for pkt") typedef enum { |