Hello again,

Just to reply to my own email. I was able to make it work including the regex capturing group as part of the AVP.

So the following config works:

modparam("dialplan", "match_dynamic", 1) $avp(s:PSTNAC) = "^0(.*)";

Dialplan entry: dpid = 1 match_op = 1 match_exp = $(avp(s:PSTNAC)[*]) match_len = 0 subst_exp = $(avp(s:PSTNAC)[*]) repl_exp = 9\1

Now as the next step I'm trying to use it with the AVP having multiple values.

From what I understood reading

https://github.com/kamailio/kamailio/issues/5#issue-51480460 the dialplan entry having an avp with index all([*]) will be checked with the avp values one by one.

This is the config being used:

modparam("dialplan", "match_dynamic", 1) $avp(s:PSTNAC) = "^0(.*)"; $avp(s:PSTNAC) = "^3(.*)";

Dialplan entry: dpid = 1 match_op = 1 match_exp = $(avp(s:PSTNAC)[*]) match_len = 0 subst_exp = $(avp(s:PSTNAC)[*]) repl_exp = 9\1

This is now causing any error message but the dialplan line is not matching either.

This is what I see in the logs: DEBUG: dialplan [dp_repl.c:232]: dpl_dynamic_pcre_list(): parsed pcre expression: $(avp(s:PSTNAC)[*]) DEBUG: dialplan [dp_repl.c:201]: dpl_dyn_pcre_comp(): compiled dynamic pcre expression: $(avp(s:PSTNAC)[*]) (^3(.*), ^0(.*)) 2 DEBUG: <core> [core/mem/q_malloc.c:366]: qm_malloc(): qm_malloc(0x75692244c020, 40) called from dialplan: dp_repl.c: dpl_dynamic_pcre_list(271) DEBUG: dialplan [dp_repl.c:620]: dp_translate_helper(): match check: [$(avp(s:PSTNAC)[*])] -1

Ah I forgot to mention early this is with kamailio 5.2.5

Any ideas?

Thanks.

Em ter., 21 de jul. de 2020 às 19:31, João Vitor Arruda joao.arruda@gmail.com escreveu:

Hello,

I'm trying to use the dialplan with $avp("key") on match_exp and subst_exp but i'm getting an error message when there is a regex capturing group on subst_exp to be used on repl_exp

This is the config used:

modparam("dialplan", "match_dynamic", 1) $avp(s:PSTNAC) = "0";

Dialplan entry: dpid = 1 match_op = 1 match_exp = ^$avp(s:PSTNAC) match_len = 0 subst_exp = ^$avp(s:PSTNAC)(.*) repl_exp = 9\1

After executing dp_translate while the dialplan is properly matched the following error message occurs and the repl_exp didn't work as expected: ERROR: dialplan [dp_repl.c:422]: rule_translate(): illegal access to 1-th subexpr of subst expr (max 0)

I've tried some other dialplan entries like:

dpid = 1 match_op = 1 match_exp = ^$(avp(s:PSTNAC)[*]) match_len = 0 subst_exp = ^$(avp(s:PSTNAC)[*])(.*) repl_exp = 9\1

But that resulted in the same error message and no replacement either.

Any suggestion on what I'm doing wrong here?

Thanks,

Joao Arruda