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added mio_dns_rcode_to_bcstr(), mio_dns_find_client_cookie_in_msg.

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deleted the cookie_verified field from mio_dns_pkt_info_t
added mio_svc_dnc_checkclientcookie()
This commit is contained in:
hyung-hwan
2020-07-04 08:03:36 +00:00
parent 26b95ba5f7
commit 8b1ccab4c8
4 changed files with 143 additions and 23 deletions
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26
mio/bin/t01.c
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@ -705,16 +705,20 @@ static void on_dnc_resolve(mio_svc_dnc_t* dnc, mio_dns_msg_t* reqmsg, mio_errnum
printf (">>>>>>>> RRDLEN = %d\n", (int)pi->_rrdlen);
printf (">>>>>>>> RCODE %d EDNS exist %d uplen %d version %d dnssecok %d\n", pi->hdr.rcode, pi->edns.exist, pi->edns.uplen, pi->edns.version, pi->edns.dnssecok);
printf (">>>>>>>> RCODE %s(%d) EDNS exist %d uplen %d version %d dnssecok %d\n", mio_dns_rcode_to_bcstr(pi->hdr.rcode), pi->hdr.rcode, pi->edns.exist, pi->edns.uplen, pi->edns.version, pi->edns.dnssecok);
if (pi->hdr.rcode == MIO_DNS_RCODE_BADCOOKIE)
{
/* TODO: must retry */
/* TODO: must retry?? there shoudl be no RRs in the payload */
}
if (pi->edns.cookie.client_len > 0 && !pi->edns.cookie_verified) /* TODO: do i need to check if cookie.server_len > 0? */
if (mio_svc_dnc_checkclientcookie(dnc, reqmsg, pi) == 0)
{
/* client cookie is bad.. */
printf ("CLIENT COOKIE IS BAD>>>>>>>>>>>>>>>>>>>\n");
printf ("CLIENT COOKIE IS BAD>>>>>>>>>>>>>>>>>>>%d\n", mio_svc_dnc_checkclientcookie(dnc, reqmsg, pi));
}
else
{
printf ("CLIENT COOKIE IS OK>>>>>>>>>>>>>>>>>>>%d\n", mio_svc_dnc_checkclientcookie(dnc, reqmsg, pi));
}
//if (pi->hdr.rcode != MIO_DNS_RCODE_NOERROR) goto no_data;
@ -1003,6 +1007,11 @@ static void send_test_query (mio_t* mio, const mio_ntime_t* now, mio_tmrjob_t* j
{
printf ("resolve attempt failure ---> mailserver.manyhost.net\n");
}
if (!mio_svc_dnc_resolve((mio_svc_dnc_t*)job->ctx, "ns2.switch.ch", MIO_DNS_RRT_A, MIO_SVC_DNC_RESOLVE_FLAG_COOKIE, on_dnc_resolve, 0))
{
printf ("resolve attempt failure ---> ns2.switch.ch\n");
}
}
int main (int argc, char* argv[])
@ -1218,8 +1227,8 @@ for (i = 0; i < 5; i++)
reply_tmout.nsec = 0;
//mio_bcstrtoskad (mio, "8.8.8.8:53", &servaddr);
//mio_bcstrtoskad (mio, "130.59.31.29:53", &servaddr); // ns2.switch.ch
mio_bcstrtoskad (mio, "134.119.216.86:53", &servaddr); // ns.manyhost.net
mio_bcstrtoskad (mio, "130.59.31.29:53", &servaddr); // ns2.switch.ch
//mio_bcstrtoskad (mio, "134.119.216.86:53", &servaddr); // ns.manyhost.net
//mio_bcstrtoskad (mio, "[fe80::c7e2:bd6e:1209:ac1b]:1153", &servaddr);
//mio_bcstrtoskad (mio, "[fe80::c7e2:bd6e:1209:ac1b%eno1]:1153", &servaddr);
@ -1332,6 +1341,11 @@ for (i = 0; i < 5; i++)
{
printf ("resolve attempt failure ---> www.microsoft.com\n");
}
if (!mio_svc_dnc_resolve(dnc, "ns2.switch.ch", MIO_DNS_RRT_CNAME, MIO_SVC_DNC_RESOLVE_FLAG_COOKIE, on_dnc_resolve, 0))
{
printf ("resolve attempt failure ---> ns2.switch.ch\n");
}
//if (!mio_svc_dnc_resolve(dnc, "www.microsoft.com", MIO_DNS_RRT_A, MIO_SVC_DNC_RESOLVE_FLAG_BRIEF, on_dnc_resolve_brief, 0))