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defined mio_svc_dnc_send_flag_t to use with mio_svc_dnc_sendmsg() and mio_svc_dnc_sendreq()

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This commit is contained in:
hyung-hwan 2020-03-02 05:16:37 +00:00
parent b801ff6703
commit 1cd2510bcd
3 changed files with 37 additions and 14 deletions
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5
mio/bin/t01.c
View File

@ -1055,6 +1055,11 @@ if (!mio_svc_dnc_resolve(dnc, "code.miflux.com", MIO_DNS_RRT_A, MIO_SVC_DNC_RESO
printf ("resolve attempt failure ---> code.miflux.com\n");
}
if (!mio_svc_dnc_resolve(dnc, "45.77.246.105.in-addr.arpa", MIO_DNS_RRT_PTR, MIO_SVC_DNC_RESOLVE_FLAG_BRIEF, on_dnc_resolve_brief, 0))
{
printf ("resolve attempt failure ---> 45.77.246.105.in-addr.arpa.\n");
}
#if 0
if (!mio_svc_dnc_resolve(dnc, "1.1.1.1.in-addr.arpa", MIO_DNS_RRT_PTR, MIO_SVC_DNC_RESOLVE_FLAG_BRIEF, on_dnc_resolve_brief, 0))
{

22
mio/lib/dns-cli.c
View File

@ -786,19 +786,19 @@ void mio_svc_dnc_stop (mio_svc_dnc_t* dnc)
}
static MIO_INLINE int send_dns_msg (mio_svc_dnc_t* dnc, mio_dns_msg_t* msg, int prefer_tcp)
static MIO_INLINE int send_dns_msg (mio_svc_dnc_t* dnc, mio_dns_msg_t* msg, int send_flags)
{
dnc_dns_msg_xtn_t* msgxtn = dnc_dns_msg_getxtn(msg);
mio_ntime_t* tmout;
if (prefer_tcp && switch_reqmsg_transport_to_tcp(dnc, msg) >= 0) return 0;
if ((send_flags & MIO_SVC_DNC_SEND_FLAG_PREFER_TCP) && switch_reqmsg_transport_to_tcp(dnc, msg) >= 0) return 0;
tmout = MIO_IS_POS_NTIME(&msgxtn->wtmout)? &msgxtn->wtmout: MIO_NULL;
/* TODO: optionally, override dnc->serv_addr and use the target address passed as a parameter */
return mio_dev_sck_timedwrite(dnc->udp_sck, mio_dns_msg_to_pkt(msg), msg->pktlen, tmout, msg, &msgxtn->servaddr);
}
mio_dns_msg_t* mio_svc_dnc_sendmsg (mio_svc_dnc_t* dnc, mio_dns_bhdr_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, int prefer_tcp, mio_svc_dnc_on_done_t on_done, mio_oow_t xtnsize)
mio_dns_msg_t* mio_svc_dnc_sendmsg (mio_svc_dnc_t* dnc, mio_dns_bhdr_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, int send_flags, mio_svc_dnc_on_done_t on_done, mio_oow_t xtnsize)
{
/* send a request or a response */
mio_dns_msg_t* msg;
@ -806,7 +806,7 @@ mio_dns_msg_t* mio_svc_dnc_sendmsg (mio_svc_dnc_t* dnc, mio_dns_bhdr_t* bdns, mi
msg = make_dns_msg(dnc, bdns, qr, qr_count, rr, rr_count, edns, on_done, xtnsize);
if (!msg) return MIO_NULL;
if (send_dns_msg(dnc, msg, prefer_tcp) <= -1)
if (send_dns_msg(dnc, msg, send_flags) <= -1)
{
release_dns_msg (dnc, msg);
return MIO_NULL;
@ -815,7 +815,7 @@ mio_dns_msg_t* mio_svc_dnc_sendmsg (mio_svc_dnc_t* dnc, mio_dns_bhdr_t* bdns, mi
return msg;
}
mio_dns_msg_t* mio_svc_dnc_sendreq (mio_svc_dnc_t* dnc, mio_dns_bhdr_t* bdns, mio_dns_bqr_t* qr, mio_dns_bedns_t* edns, int prefer_tcp, mio_svc_dnc_on_done_t on_done, mio_oow_t xtnsize)
mio_dns_msg_t* mio_svc_dnc_sendreq (mio_svc_dnc_t* dnc, mio_dns_bhdr_t* bdns, mio_dns_bqr_t* qr, mio_dns_bedns_t* edns, int send_flags, mio_svc_dnc_on_done_t on_done, mio_oow_t xtnsize)
{
/* send a request without resource records */
if (bdns->rcode != MIO_DNS_RCODE_NOERROR)
@ -824,7 +824,7 @@ mio_dns_msg_t* mio_svc_dnc_sendreq (mio_svc_dnc_t* dnc, mio_dns_bhdr_t* bdns, mi
return MIO_NULL;
}
return mio_svc_dnc_sendmsg(dnc, bdns, qr, 1, MIO_NULL, 0, edns, prefer_tcp, on_done, xtnsize);
return mio_svc_dnc_sendmsg(dnc, bdns, qr, 1, MIO_NULL, 0, edns, send_flags, on_done, xtnsize);
}
/* ----------------------------------------------------------------------- */
@ -933,7 +933,7 @@ done:
if (pi) mio_dns_free_packet_info(mio_svc_dnc_getmio(dnc), pi);
}
mio_dns_msg_t* mio_svc_dnc_resolve (mio_svc_dnc_t* dnc, const mio_bch_t* qname, mio_dns_rrt_t qtype, int flags, mio_svc_dnc_on_resolve_t on_resolve, mio_oow_t xtnsize)
mio_dns_msg_t* mio_svc_dnc_resolve (mio_svc_dnc_t* dnc, const mio_bch_t* qname, mio_dns_rrt_t qtype, int resolve_flags, mio_svc_dnc_on_resolve_t on_resolve, mio_oow_t xtnsize)
{
static mio_dns_bhdr_t qhdr =
{
@ -971,12 +971,16 @@ mio_dns_msg_t* mio_svc_dnc_resolve (mio_svc_dnc_t* dnc, const mio_bch_t* qname,
reqmsg = make_dns_msg(dnc, &qhdr, &qr, 1, MIO_NULL, 0, &qedns, on_dnc_resolve, MIO_SIZEOF(*resolxtn) + xtnsize);
if (reqmsg)
{
int send_flags;
resolxtn = dnc_dns_msg_resolve_getxtn(reqmsg);
resolxtn->on_resolve = on_resolve;
resolxtn->qtype = qtype;
resolxtn->flags = flags;
resolxtn->flags = resolve_flags;
if (send_dns_msg(dnc, reqmsg, ((flags & MIO_SVC_DNC_RESOLVE_FLAG_PREFER_TCP) || qtype == MIO_DNS_RRT_Q_AFXR)) <= -1)
send_flags = (resolve_flags & MIO_SVC_DNC_SEND_FLAG_ALL);
if (MIO_UNLIKELY(qtype == MIO_DNS_RRT_Q_AFXR)) send_flags |= MIO_SVC_DNC_SEND_FLAG_PREFER_TCP;
if (send_dns_msg(dnc, reqmsg, send_flags) <= -1)
{
release_dns_msg (dnc, reqmsg);
return MIO_NULL;

24
mio/lib/mio-dns.h
View File

@ -390,10 +390,24 @@ typedef void (*mio_svc_dnc_on_resolve_t) (
#define mio_svc_dnc_getmio(svc) mio_svc_getmio(svc)
#define mio_svc_dnr_getmio(svc) mio_svc_getmio(svc)
enum mio_svc_dnc_send_flag_t
{
MIO_SVC_DNC_SEND_FLAG_PREFER_TCP = (1 << 0),
MIO_SVC_DNC_SEND_FLAG_TCP_IF_TC = (1 << 1), // retry over tcp if the truncated bit is set in an answer over udp.
MIO_SVC_DNC_SEND_FLAG_ALL = (MIO_SVC_DNC_SEND_FLAG_PREFER_TCP | MIO_SVC_DNC_SEND_FLAG_TCP_IF_TC)
};
typedef enum mio_svc_dnc_send_flag_t mio_svc_dnc_send_flag_t;
enum mio_svc_dnc_resolve_flag_t
{
MIO_SVC_DNC_RESOLVE_FLAG_BRIEF = (1 << 0),
MIO_SVC_DNC_RESOLVE_FLAG_PREFER_TCP = (1 << 1)
MIO_SVC_DNC_RESOLVE_FLAG_PREFER_TCP = MIO_SVC_DNC_SEND_FLAG_PREFER_TCP,
MIO_SVC_DNC_RESOLVE_FLAG_TCP_IF_TC = MIO_SVC_DNC_SEND_FLAG_TCP_IF_TC,
/* the following flag bits are resolver specific. it must not overlap with send flag bits */
MIO_SVC_DNC_RESOLVE_FLAG_BRIEF = (1 << 8),
MIO_SVC_DNC_RESOLVE_FLAG_ALL = (MIO_SVC_DNC_RESOLVE_FLAG_PREFER_TCP | MIO_SVC_DNC_RESOLVE_FLAG_TCP_IF_TC | MIO_SVC_DNC_RESOLVE_FLAG_BRIEF)
};
typedef enum mio_svc_dnc_resolve_flag_t mio_svc_dnc_resolve_flag_t;
@ -463,7 +477,7 @@ MIO_EXPORT mio_dns_msg_t* mio_svc_dnc_sendmsg (
mio_dns_brr_t* rr,
mio_oow_t rr_count,
mio_dns_bedns_t* edns,
int prefer_tcp,
int send_flags,
mio_svc_dnc_on_done_t on_done,
mio_oow_t xtnsize
);
@ -473,7 +487,7 @@ MIO_EXPORT mio_dns_msg_t* mio_svc_dnc_sendreq (
mio_dns_bhdr_t* bdns,
mio_dns_bqr_t* qr,
mio_dns_bedns_t* edns,
int prefer_tcp,
int send_flags,
mio_svc_dnc_on_done_t on_done,
mio_oow_t xtnsize
);
@ -483,7 +497,7 @@ MIO_EXPORT mio_dns_msg_t* mio_svc_dnc_resolve (
mio_svc_dnc_t* dnc,
const mio_bch_t* qname,
mio_dns_rrt_t qtype,
int flags,
int resolve_flags,
mio_svc_dnc_on_resolve_t on_resolve,
mio_oow_t xtnsize
);