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Add support EDNS TCP-keep-alive

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This commit is contained in:
Nick Peng
2019-02-24 03:18:25 +08:00
parent 7c2df9c96b
commit 02213de0ee
3 changed files with 96 additions and 6 deletions
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4
src/dns.h
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@@ -47,6 +47,7 @@ typedef enum dns_type {
typedef enum dns_opt_code {
DNS_OPT_T_ECS = 8,
DNS_OPT_T_TCP_KEEPALIVE = 11,
DNS_OPT_T_ALL = 255
} dns_opt_code_t;
@@ -191,6 +192,9 @@ int dns_get_OPT_payload_size(struct dns_packet *packet);
int dns_add_OPT_ECS(struct dns_packet *packet, struct dns_opt_ecs *ecs);
int dns_get_OPT_ECS(struct dns_rrs *rrs, unsigned short *opt_code, unsigned short *opt_len, struct dns_opt_ecs *ecs);
int dns_add_OPT_TCP_KEEYALIVE(struct dns_packet *packet, unsigned short timeout);
int dns_get_OPT_TCP_KEEYALIVE(struct dns_rrs *rrs, unsigned short *opt_code, unsigned short *opt_len, unsigned short *timeout);
/*
* Packet operation
*/