diff options
| author |   Dave Barach <dave@barachs.net> | 2017-11-04 09:44:38 -0400 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-11-05 11:37:08 +0000 |
| commit | 97494500bf7c4dd608fe1e1eb8a3dfd0839b3472 (patch) | |
| tree | 3543d6e52be5e779a69b9a2b356599db22b1efc5 /src/vnet/dns/dns.h | |
| parent | fd67ece3d3eda0bd896aaa166d89b4f8e7f4e98f (diff) | |
ip4 network request processing
Change-Id: I6eb0681cc2595f81ac3bf5ffa3e9b2adfff04a36
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/dns/dns.h')
| -rw-r--r-- | src/vnet/dns/dns.h | 55 |
1 files changed, 48 insertions, 7 deletions
diff --git a/src/vnet/dns/dns.h b/src/vnet/dns/dns.h index 442ef860cfb..84d7ee041b5 100644 --- a/src/vnet/dns/dns.h +++ b/src/vnet/dns/dns.h @@ -29,10 +29,21 @@ typedef struct u32 request_type; u32 client_index; u32 client_context; -} pending_api_request_t; + u8 is_ip6; + u16 dst_port; + u16 id; + u16 pad; + u8 dst_address[16]; + u8 *name; +} dns_pending_request_t; -#define DNS_API_PENDING_NAME_TO_IP 1 -#define DNS_API_PENDING_IP_TO_NAME 2 +typedef enum +{ + DNS_API_PENDING_NAME_TO_IP = 1, + DNS_API_PENDING_IP_TO_NAME, + DNS_PEER_PENDING_NAME_TO_IP, + DNS_PEER_PENDING_IP_TO_NAME, +} dns_pending_request_type_t; typedef struct { @@ -60,10 +71,8 @@ typedef struct /** Cached dns response */ u8 *dns_response; - /** Clients awaiting responses */ - pending_api_request_t *pending_api_requests; - ip4_address_t *ip4_peers_to_notify; - ip6_address_t *ip6_peers_to_notify; + /** Clients / peers awaiting responses */ + dns_pending_request_t *pending_requests; } dns_cache_entry_t; #define DNS_CACHE_ENTRY_FLAG_VALID (1<<0) /**< we have Actual Data */ @@ -108,8 +117,27 @@ typedef struct extern dns_main_t dns_main; extern vlib_node_registration_t dns46_reply_node; +extern vlib_node_registration_t dns4_request_node; +extern vlib_node_registration_t dns6_request_node; extern vlib_node_registration_t dns_resolver_node; +#define foreach_dns46_request_error \ +_(NONE, "No error") \ +_(UNIMPLEMENTED, "Unimplemented") \ +_(PROCESSED, "DNS request pkts processed") \ +_(IP_OPTIONS, "DNS pkts with ip options (dropped)") \ +_(BAD_REQUEST, "DNS pkts with serious discrepanices (dropped)") \ +_(TOO_MANY_REQUESTS, "DNS pkts asking too many questions") \ +_(RESOLUTION_REQUIRED, "DNS pkts pending upstream name resolution") + +typedef enum +{ +#define _(sym,str) DNS46_REQUEST_ERROR_##sym, + foreach_dns46_request_error +#undef _ + DNS46_REQUEST_N_ERROR, +} dns46_request_error_t; + #define foreach_dns46_reply_error \ _(PROCESSED, "DNS reply pkts processed") \ _(NO_ELT, "No DNS pool element") \ @@ -130,6 +158,19 @@ vnet_dns_cname_indirection_nolock (dns_main_t * dm, u32 ep_index, u8 * reply); int vnet_dns_delete_entry_by_index_nolock (dns_main_t * dm, u32 index); +int +vnet_dns_resolve_name (dns_main_t * dm, u8 * name, dns_pending_request_t * t, + dns_cache_entry_t ** retp); + +void vnet_send_dns4_reply (dns_main_t * dm, dns_pending_request_t * t, + dns_cache_entry_t * ep, vlib_buffer_t * b0); + +void vnet_send_dns6_reply (dns_main_t * dm, dns_pending_request_t * t, + dns_cache_entry_t * ep, vlib_buffer_t * b0); + +u8 *vnet_dns_labels_to_name (u8 * label, u8 * full_text, + u8 ** parse_from_here); + format_function_t format_dns_reply; static inline void |