[SR-Users] question about dlg_var

[Federico Cabiddu]

Hi,
If I understood correctly the original question was to identify, in a reply
route, a 200 OK coming for an initial INVITE.
In the reply route the 200 OK will always have a to tag (unless the UAS is
broken), so you cannot this condition.

Regards,

Federico

On Thu, Mar 3, 2016 at 9:05 AM, Serge S. Yuriev <me at nevian.org> wrote:

> Hi,
>
> Sorry, but why not to check has_totag again? Why we need a flag?
>
> --
> Wbr, Serge via mobile
>
> 03.03.2016, 09:31, "Federico Cabiddu" <federico.cabiddu at gmail.com>:
>
>
> Hi,
> $dlg_var is not available at this stage of the dialog:
>
>
> http://www.kamailio.org/docs/modules/devel/modules/dialog.html#idp19330392
>
>
>
> To achieve your goal you can use there an avp or a flag, which are bound
> to transactions.
> Something like:
>
>
>
> #define INIT_FLAG
>
>
> if (is_method("INVITE") && !has_totag()) {
>
>         $avp(is_init_invite) = 1;
>         # or
>         # setflag(INIT_FLAG);
> }
>
>
> onreply_route {
>     if (is_method("INVITE") && t_check_status("200") &&
> $avp(is_init_invite) == "1") {
>         # or
>         # if (is_method("INVITE") && t_check_status("200") &&
> isflagset(INIT_FLAG))
>         #
>         # do somting
>     }
> }
>
>
> Regards,
>
>
> Federico
>
>
> On Thu, Mar 3, 2016 at 4:55 AM, 张顺通 <shuntongzhang at gmail.com> wrote:
>
>
> I want to distingguish 200 OK is for INVITE or reINVITE。
>
>
> so I do this:
> request_route {
>     if (is_method("INVITE") && !has_totag()) {
>         $dlg_var(is_init_invite) = "1";
>     }
> }
>
>
> onreply_route {
>     xlog("L_INFO","[$rs-$rr][is_init_invite:$dlg_var(is_init_invite)]");
>     if (is_method("INVITE") && t_check_status("200") &&
> $dlg_var(is_init_invite) == "1") {
>         # do somting
>         $dlg_var(is_init_invite) = "0";
>     }
>     xlog("L_INFO","[$rs-$rr][is_init_invite:$dlg_var(is_init_invite)]");
> }
>
>
> What I confuse is：
> When I recive 100 Trying LOG is
> [100 - Trying][is_init_invite:0]
> [100 - Trying][is_init_invite:1]
>
>
>
> why is_init_invite is 0?
>
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