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#### Description <!-- Describe your changes in detail --> Following carrierroute module functions are exported to KEMI API.

- cr_load_next_domain ( ) - cr_route ( ) - cr_nofallback_route ( )

Additionally various fix-up free functions added for better memory management. The documentation has been updated to correctly explain various parameters and use cases.

#### Example 1: Proxy Routing ```python3

def route_proxy(self, msg): KSR.info("==================== route_proxy\n") rU = KSR.kx.get_ruser()

if rU == None: return -255

if KSR.carrierroute.cr_route("default", "proxy", rU, rU, "call_id") < 0: KSR.sl.sl_send_reply(400, "Bad Request") return -255

```

#### Example 2: Registrar Routing ```python3

def route_registrar(self, msg): KSR.info("==================== route_registrar\n") rU = KSR.kx.get_ruser()

if rU == None: rU = ""

if KSR.carrierroute.cr_nofallback_route("default", "register", rU, rU, "from_user") < 0: KSR.sl.sl_send_reply(400, "Bad Request") return -255

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

https://github.com/kamailio/kamailio/pull/3325

-- Commit Summary --

* carrierroute: added fixup free functions * carrierroute: exported cr_load_next_domain(), cr_route() and cr_nofallback_route() to kemi * carrierroute: added helper methods to simplify config and kemi functions, also some code clean up * carrierroute: updated module docs

-- File Changes --

M src/modules/carrierroute/carrierroute.c (46) M src/modules/carrierroute/cr_fixup.c (176) M src/modules/carrierroute/cr_fixup.h (4) M src/modules/carrierroute/cr_func.c (675) M src/modules/carrierroute/cr_func.h (65) M src/modules/carrierroute/doc/carrierroute.xml (79) M src/modules/carrierroute/doc/carrierroute_admin.xml (1403)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/3325.patch https://github.com/kamailio/kamailio/pull/3325.diff