hyung-hwan/hio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

enhanced the dns message builder function

Browse Source
This commit is contained in:
hyung-hwan
2019-04-10 09:05:56 +00:00
parent 92677d5129
commit cc9a038760
3 changed files with 209 additions and 101 deletions
Download Patch File Download Diff File Expand all files Collapse all files

102
mio/lib/mio-dns.h
View File

@ -96,11 +96,26 @@ enum mio_dns_qclass_t
};
typedef enum mio_dns_qclass_t mio_dns_qclass_t;
enum mio_dns_eopt_code_t
{
MIO_DNS_EOPT_NSID = 3,
MIO_DNS_EOPT_DAU = 5,
MIO_DNS_EOPT_DHU = 6,
MIO_DNS_EOPT_N3U = 7,
MIO_DNS_EOPT_ECS = 8,
MIO_DNS_EOPT_EXPIRE = 9,
MIO_DNS_EOPT_COOKIE = 10,
MIO_DNS_EOPT_TCPKEEPALIVE = 11,
MIO_DNS_EOPT_PADDING = 12,
MIO_DNS_EOPT_CHAIN = 13,
MIO_DNS_EOPT_KEYTAG = 14,
};
typedef enum mio_dns_eopt_code_t mio_dns_eopt_code_t;
#include <mio-pac1.h>
struct mio_dns_msg_t
struct mio_dns_hdr_t
{
mio_uint16_t id;
#if defined(MIO_ENDIAN_BIG)
mio_uint16_t qr: 1; /* query(0), answer(1) */
mio_uint16_t opcode: 4; /* operation type */
@ -112,7 +127,7 @@ struct mio_dns_msg_t
mio_uint16_t unused_1: 1;
mio_uint16_t ad: 1; /* authentication data - dnssec */
mio_uint16_t cd: 1; /* checking disabled - dnssec */
mio_uint16_t rcode: 4;
mio_uint16_t rcode: 4; /* reply code - for reply only */
#else
mio_uint16_t rd: 1;
mio_uint16_t tc: 1;
@ -132,15 +147,15 @@ struct mio_dns_msg_t
mio_uint16_t nscount; /* number of name servers (authority part. only NS types) */
mio_uint16_t arcount; /* number of additional resource (additional part) */
};
typedef struct mio_dns_msg_t mio_dns_msg_t;
typedef struct mio_dns_hdr_t mio_dns_hdr_t;
struct mio_dns_msg_alt_t
struct mio_dns_hdr_alt_t
{
mio_uint16_t id;
mio_uint16_t flags;
mio_uint16_t rrcount[4];
};
typedef struct mio_dns_msg_alt_t mio_dns_msg_alt_t;
typedef struct mio_dns_hdr_alt_t mio_dns_hdr_alt_t;
/* question
* name, qtype, qclass
* answer
@ -168,11 +183,43 @@ struct mio_dns_rrtr_t
};
typedef struct mio_dns_rrtr_t mio_dns_rrtr_t;
struct mio_dns_eopt_t
{
mio_uint16_t code;
mio_uint16_t dlen;
/* actual data if if dlen > 0 */
};
typedef struct mio_dns_eopt_t mio_dns_eopt_t;
#include <mio-upac.h>
typedef struct mio_dnss_t mio_dnss_t;
typedef struct mio_dnsc_t mio_dnsc_t;
/*
#define MIO_DNS_HDR_MAKE_FLAGS(qr,opcode,aa,tc,rd,ra,ad,cd,rcode) \
((((qr) & 0x01) << 15) | (((opcode) & 0x0F) << 14) | (((aa) & 0x01) << 10) | (((tc) & 0x01) << 9) | \
(((rd) & 0x01) << 8) | (((ra) & 0x01) << 7) | (((ad) & 0x01) << 5) | (((cd) & 0x01) << 4) | ((rcode) & 0x0F))
*/
/* breakdown of the dns message id and flags */
struct mio_dns_bdns_t
{
int id; /* auto-assign if negative. */
mio_uint8_t qr; /* query(0), answer(1) */
mio_uint8_t opcode; /* operation type */
mio_uint8_t aa; /* authoritative answer */
mio_uint8_t tc; /* truncated. response too large for UDP */
mio_uint8_t rd; /* recursion desired */
mio_uint8_t ra; /* recursion available */
mio_uint8_t ad; /* authentication data - dnssec */
mio_uint8_t cd; /* checking disabled - dnssec */
mio_uint8_t rcode; /* reply code - for reply only */
};
typedef struct mio_dns_bdns_t mio_dns_bdns_t;
/* breakdown of question record */
struct mio_dns_bqr_t
{
@ -204,25 +251,30 @@ struct mio_dns_brr_t
};
typedef struct mio_dns_brr_t mio_dns_brr_t;
struct mio_dns_bedns_opt_t
struct mio_dns_beopt_t
{
mio_uint16_t dtype;
mio_uint16_t code;
mio_uint16_t dlen;
void* dptr;
};
typedef struct mio_dns_bedns_opt_t mio_dns_bedns_opt_t;
typedef struct mio_dns_beopt_t mio_dns_beopt_t;
/* the full rcode must be given. the macro takes the upper 8 bits */
#define MIO_DNS_EDNS_MAKE_TTL(rcode,version,dnssecok) ((((((mio_uint32_t)rcode) >> 4) & 0xFF) << 24) | (((mio_uint32_t)version & 0xFF) << 16) | (((mio_uint32_t)dnssecok & 0x1) << 15))
struct mio_dns_bedns_t
{
mio_uint16_t uplen; /* udp payload len */
mio_uint8_t version;
mio_uint16_t uplen; /* udp payload len - will be placed in the qclass field of RR. */
mio_oow_t olen; /* option count*/
mio_dns_bedns_opt_t* optr;
/* the ttl field(32 bits) of RR holds extended rcode, version, dnssecok */
mio_uint8_t version;
mio_uint8_t dnssecok;
mio_oow_t beonum; /* option count */
mio_dns_beopt_t* beoptr;
};
typedef struct mio_dns_bedns_t mio_dns_bedns_t;
#if defined(__cplusplus)
extern "C" {
#endif
@ -236,17 +288,21 @@ MIO_EXPORT void mio_dnsc_stop (
);
MIO_EXPORT int mio_dnsc_sendreq (
mio_dnsc_t* dnsc,
mio_dns_bqr_t* qr,
mio_oow_t qr_count
mio_dnsc_t* dnsc,
mio_dns_bdns_t* bdns,
mio_dns_bqr_t* qr,
mio_oow_t qr_count,
mio_dns_bedns_t* edns
);
MIO_EXPORT int mio_dnsc_sendrep (
mio_dnsc_t* dnsc,
mio_dns_bqr_t* qr,
mio_oow_t qr_count,
mio_dns_brr_t* rr,
mio_oow_t rr_count
MIO_EXPORT int mio_dnsc_sendmsg (
mio_dnsc_t* dnsc,
mio_dns_bdns_t* bdns,
mio_dns_bqr_t* qr,
mio_oow_t qr_count,
mio_dns_brr_t* rr,
mio_oow_t rr_count,
mio_dns_bedns_t* edns
);
#if defined(__cplusplus)