[Devel] local ACK from/to headers

[Marco Holmer]

Hi developers,


Could someone shed some light on the creation of local ACKs: why are the 
To and From headers constructed differenty?
To header gets copied from the response to the parameter uas_to but
 From header is taken from the transaction (the inital request's From 
header).

This results in a faulty From header in a case where rewritings are 
configured (through textops) in both headers mentioned, where the ACK 
should match the original Request. Would it not be easier to copy both 
headers from the arriving response?

kind regards
Marco


----
modules/tm/t_msgbuilder.c

  183 char *build_local(struct cell *Trans,unsigned int branch,
  184 	unsigned int *len, char *method, int method_len, str *uas_to)
  185 {
  186 	char                *cancel_buf, *p, *via;
  187 	unsigned int         via_len;
  188 	struct hdr_field    *hdr;
  189 	struct sip_msg      *req;
  190 	char branch_buf[MAX_BRANCH_PARAM_LEN];
  191 	str branch_str;
  192 	struct hostport hp;
  193 	str from;
  194 	str to;
  195 	str cseq_n;
  196
  197 	req = Trans->uas.request;
  198 	from = Trans->from;
  199 	cseq_n = Trans->cseq_n;
  200 	to = *uas_to;