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#### Description <!-- Describe your changes in detail -->

allows the use definitions as pseudo-variables ``` #!trydef XIP "$HN(i)" #!substdef "!MY_IP_ADDRESS!$def(XIP)!g"

#!substdef "!MY_HOSTNAME!$HN(f)!g" #!trydef REGISTRAR_MIN_EXPIRES 300

loadmodule "registrar.so" modparam("registrar", "min_expires", REGISTRAR_MIN_EXPIRES)

route[SOMETHING] { xlog("L_INFO", "configured value of registrar min-expires is $def(REGISTRAR_MIN_EXPIRES)\n"); xlog("L_INFO", "configured value of host is MY_HOSTNAME\n"); xlog("L_INFO", "configured value of ip is MY_IP_ADDRESS\n"); }

```

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1814

-- Commit Summary --

* core: allow pvar resolve in subsdef * core: allow pp_define_get to be used by modules * pv: add $def pseudo variable

-- File Changes --

M src/core/cfg.lex (4) M src/core/ppcfg.c (4) M src/modules/pv/pv.c (2) M src/modules/pv/pv_core.c (25) M src/modules/pv/pv_core.h (3)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1814.patch https://github.com/kamailio/kamailio/pull/1814.diff