libsxmp/man/sxhub_set_sslvalidate.3

.TH SXHUB_SET_SSLVALIDATE 3 "20 July 2015" "SXMP" "SXMP Library Manual"
.SH NAME
sxhub_set_sslvalidate \- Set callback for the links created on the pointed hub, called to validate x.509 certificate of peer by serial number.
.br
.SH SYNOPSIS
.B #include <sxmp/sxmp.h>
.sp
#define sxhub_set_sslvalidate(c, f)

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.sp
.SH DESCRIPTION
This macro should be used if you want to setup callback function fired while connection link initiating, and depending on returning value will establish link or destroy it.
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This macro will set on
.B c
connections link set callback
.B f 
which is a function pointer of the type:
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.sp
.B typedef int (*validate_sslpem_t)(sxlink_t *);
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.sp
It will pass a pointer to the connection link initiating now. Link isn't set fully at this moment and doesn't pass any messages and don't works with channel's operations. To pass initiation to the next stage this function should return 
.B 0.
In fail case other code error should be returned.
.SH RETURN VALUE
None.
.SH ERRORS
None.
.SH BUGS
None known yet.
.SH EXAMPLE
This example shows the code prototype for the simple check:
.RS
.nf
.if t .ft CW
int validatex509(sxlink_t *co)
{
  sxsession_ctx_t *ctx = sxlink_getpctx(co);
  uint64_t x509serial = ctx->certid;

  /* do checks ... */
  /* your fail case */return 1;
  return 0; /* all is fine */
}
.SH APPLICATION USAGE
This function should be used on the master service, currently it's not applicable for client applications, and may cause undefined behavoir.
.SH RATIONALE
None.
.SH SEE ALSO
.BI sxhub_set_priv(3)
,
.BI sxhub_get_priv(3)
,
.BI sxhub_set_ondestroy(3)
,
.BI sxlink_getpctx(3)
,
.BI sxlink_getpriv(3)
,
.BI sxlink_setpriv(3)
.SH COPYRIGHT
This software licensed under GNU LGPL v3. See COPYING for further details.
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(c) Askele Group 2013-2015 <http://askele.com>
.SH AUTHOR
Alexander Vdolainen (vdo@askele.com)