diff options
| author |   Dave Barach <dave@barachs.net> | 2017-10-10 17:53:14 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2017-10-13 20:20:09 +0000 |
| commit | 6545716c073c88ad86458620c6dbc59ba1cd00bb (patch) | |
| tree | 2bd8b7d9cd0e221669081aba27786e1ce5eee964 /src/vnet/udp | |
| parent | 7e550693dffd368b9dd8e0397674cfc4d10f9579 (diff) | |
VPP-1027: DNS name resolver
This patch is a plausible first-cut, suitable for initial testing by
vcl (host stack client library).
Main features;
- recursive name resolution
- multiple ip4/ip6 name servers
- cache size limit enforcement
- currently limited to 65K
- ttl / aging
- static mapping support
- show / clear / debug CLI commands
Binary APIs provided for the following:
- add/delete name servers
- enable/disable the name cache
- resolve a name
To Do list:
- Respond to ip4/ip6 client DNS requests (vs. binary API requests)
- Perf / scale tuning
- map pending transaction ids to pool indices, so the cache
can (greatly) exceed 65K entries
- Security improvements
- Use unpredictable dns transaction IDs, related to previous item
- Make sure that response-packet src ip addresses match the server
- Add binary APIs
- deliver raw response data to clients
- control recursive name resolution
- Documentation
Change-Id: I48c373d5c05d7108ccd814d4055caf8c75ca10b7
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/udp')
| -rw-r--r-- | src/vnet/udp/udp.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/vnet/udp/udp.h b/src/vnet/udp/udp.h index dae611cc418..aa37701106c 100644 --- a/src/vnet/udp/udp.h +++ b/src/vnet/udp/udp.h @@ -78,6 +78,7 @@ typedef enum } udp_error_t; #define foreach_udp4_dst_port \ +_ (53, dns) \ _ (67, dhcp_to_server) \ _ (68, dhcp_to_client) \ _ (500, ikev2) \ @@ -91,10 +92,12 @@ _ (4789, vxlan) \ _ (4789, vxlan6) \ _ (4790, VXLAN_GPE) \ _ (6633, vpath_3) \ -_ (6081, geneve) +_ (6081, geneve) \ +_ (53053, dns_reply) #define foreach_udp6_dst_port \ +_ (53, dns6) \ _ (547, dhcpv6_to_server) \ _ (546, dhcpv6_to_client) \ _ (2152, GTPU6) \ @@ -104,7 +107,8 @@ _ (4341, lisp_gpe6) \ _ (4342, lisp_cp6) \ _ (4790, VXLAN6_GPE) \ _ (6633, vpath6_3) \ -_ (6081, geneve6) +_ (6081, geneve6) \ +_ (53053, dns_reply6) typedef enum { |