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MINOR: dns: new MAX values

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DNS_MIN_RECORD_SIZE: minimal size of a DNS record

DNS_MAX_QUERY_RECORDS: maximum number of query records we allow.
  For now, we send one DNS query per request.

DNS_MAX_ANSWER_RECORDS: maximum number of records we may found in a
  response

WIP dns: new MAX values
This commit is contained in:
Baptiste Assmann 2015-12-09 14:02:01 +01:00 committed by Willy Tarreau
parent d20bbaf093
commit 4ec076f8ed
1 changed files with 10 additions and 0 deletions
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10
include/types/dns.h
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@ -32,6 +32,16 @@
#define DNS_MAX_NAME_SIZE 255
#define DNS_MAX_UDP_MESSAGE 512
/* DNS minimun record size: 1 char + 1 NULL + type + class */
#define DNS_MIN_RECORD_SIZE ( 1 + 1 + 2 + 2 )
/* maximum number of query records in a DNS response
* For now, we allow only one */
#define DNS_MAX_QUERY_RECORDS 1
/* maximum number of answer record in a DNS response */
#define DNS_MAX_ANSWER_RECORDS ((DNS_MAX_UDP_MESSAGE - DNS_HEADER_SIZE) / DNS_MIN_RECORD_SIZE)
/* DNS error messages */
#define DNS_TOO_LONG_FQDN "hostname too long"
#define DNS_LABEL_TOO_LONG "one label too long"