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more dns cookie handling code

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hyung-hwan
2020-07-02 14:21:47 +00:00
parent fe478e954d
commit 5fdf4f780d
6 changed files with 225 additions and 84 deletions
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26
mio/lib/mio-dns.h
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@ -414,6 +414,29 @@ typedef enum mio_svc_dnc_resolve_flag_t mio_svc_dnc_resolve_flag_t;
/* ---------------------------------------------------------------- */
#define MIO_DNS_COOKIE_CLIENT_LEN (8)
#define MIO_DNS_COOKIE_SERVER_MIN_LEN (16)
#define MIO_DNS_COOKIE_SERVER_MAX_LEN (40)
#define MIO_DNS_COOKIE_MAX_LEN (MIO_DNS_COOKIE_CLIENT_LEN + MIO_DNS_COOKIE_SERVER_MAX_LEN)
typedef struct mio_dns_cookie_data_t mio_dns_cookie_data_t;
#include <mio-pac1.h>
struct mio_dns_cookie_data_t
{
mio_uint8_t client[MIO_DNS_COOKIE_CLIENT_LEN];
mio_uint8_t server[MIO_DNS_COOKIE_SERVER_MAX_LEN];
};
#include <mio-upac.h>
typedef struct mio_dns_cookie_t mio_dns_cookie_t;
struct mio_dns_cookie_t
{
mio_dns_cookie_data_t data;
mio_uint8_t client_len;
mio_uint8_t server_len;
};
/* ---------------------------------------------------------------- */
struct mio_dns_pkt_info_t
{
@ -433,6 +456,8 @@ struct mio_dns_pkt_info_t
mio_uint16_t uplen; /* udp payload len - will be placed in the qclass field of RR. */
mio_uint8_t version;
mio_uint8_t dnssecok;
mio_dns_cookie_t cookie;
int cookie_verified; /* UGLY: set via mio_svc_dnc_resolve() only. mio_dns_make_packet_info() doesn't set this */
} edns;
mio_uint16_t qdcount; /* number of questions */
@ -447,6 +472,7 @@ struct mio_dns_pkt_info_t
mio_dns_brr_t* ns;
mio_dns_brr_t* ar;
} rr;
};
typedef struct mio_dns_pkt_info_t mio_dns_pkt_info_t;