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Handle UDP packet loss when fragmentation of large packets is broken.

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Simon Kelley
2015-05-08 16:25:38 +01:00
parent 64bcff1c7c
commit a77cec8d58
8 changed files with 66 additions and 35 deletions
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src/config.h
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@@ -19,6 +19,7 @@
#define CHILD_LIFETIME 150 /* secs 'till terminated (RFC1035 suggests > 120s) */
#define TCP_MAX_QUERIES 100 /* Maximum number of queries per incoming TCP connection */
#define EDNS_PKTSZ 4096 /* default max EDNS.0 UDP packet from RFC5625 */
#define SAFE_PKTSZ 1280 /* "go anywhere" UDP packet size */
#define KEYBLOCK_LEN 40 /* choose to mininise fragmentation when storing DNSSEC keys */
#define DNSSEC_WORK 50 /* Max number of queries to validate one question */
#define TIMEOUT 10 /* drop UDP queries after TIMEOUT seconds */