static int msg_apply_changes_f(sip_msg_t *msg, char *str1, char *str2)
{
struct dest_info dst;
str obuf;
sip_msg_t tmp;
if(msg->first_line.type!=SIP_REPLY && get_route_type()!=REQUEST_ROUTE)
{
LM_ERR("invalid usage - not in request route\n");
return -1;
}
init_dest_info(&dst);
dst.proto = PROTO_UDP;
if(msg->first_line.type == SIP_REPLY) {
obuf.s = generate_res_buf_from_sip_res(msg,
(unsigned int*)&obuf.len, BUILD_NO_VIA1_UPDATE);
} else {
if(msg->msg_flags & FL_RR_ADDED) {
LM_ERR("cannot apply msg changes after adding record-route"
" header - it breaks conditional 2nd header\n");
return -1;
}
obuf.s = build_req_buf_from_sip_req(msg,
(unsigned int*)&obuf.len, &dst,
BUILD_NO_PATH|BUILD_NO_LOCAL_VIA|BUILD_NO_VIA1_UPDATE);
}
if(obuf.s == NULL)
{
LM_ERR("couldn't update msg buffer content\n");
return -1;
}
if(obuf.len>=BUF_SIZE)
{
LM_ERR("new buffer overflow (%d)\n", obuf.len);
pkg_free(obuf.s);
return -1;
}
/* temporary copy */
memcpy(&tmp, msg, sizeof(sip_msg_t));
/* reset dst uri and path vector to avoid freeing - restored later */
if(msg->dst_uri.s!=NULL)
{
msg->dst_uri.s = NULL;
msg->dst_uri.len = 0;
}
if(msg->path_vec.s!=NULL)
{
msg->path_vec.s = NULL;
msg->path_vec.len = 0;
}
/* free old msg structure */
free_sip_msg(msg);
memset(msg, 0, sizeof(sip_msg_t));
/* restore msg fields */
msg->buf = tmp.buf;
msg->id = tmp.id;
msg->rcv = tmp.rcv;
msg->set_global_address = tmp.set_global_address;
msg->set_global_port = tmp.set_global_port;
msg->flags = tmp.flags;
msg->msg_flags = tmp.msg_flags;
msg->hash_index = tmp.hash_index;
msg->force_send_socket = tmp.force_send_socket;
msg->fwd_send_flags = tmp.fwd_send_flags;
msg->rpl_send_flags = tmp.rpl_send_flags;
msg->dst_uri = tmp.dst_uri;
msg->path_vec = tmp.path_vec;
memcpy(msg->buf, obuf.s, obuf.len);
msg->len = obuf.len;
msg->buf[msg->len] = '\0';
/* free new buffer - copied in the static buffer from old sip_msg_t */
pkg_free(obuf.s);
/* reparse the message */
LM_DBG("SIP message content updated - reparsing\n");
if (parse_msg(msg->buf, msg->len, msg)!=0){
LM_ERR("parsing new sip message failed\n");
return -1;
}
return 1;
}
/**
* dump current SIP message and a diff lump list
* part of the code taken from msg_apply_changes_f
*/
static int w_dbg_sip_msg(struct sip_msg* msg, char *level, char *facility)
{
int ilevel = cfg_get(core, core_cfg, debug);
int ifacility= cfg_get(core, core_cfg, log_facility);
int flag = FLAG_MSG_LUMPS_ONLY; // copy lumps only, not the whole message
unsigned int new_buf_offs=0, orig_offs = 0;
char *hdr_lumps = NULL;
char *bdy_lumps = NULL;
const char *start_txt = "------------------------- START OF SIP message debug --------------------------\n";
const char *hdr_txt = "------------------------------ SIP header diffs -------------------------------\n";
const char *bdy_txt = "------------------------------- SIP body diffs --------------------------------\n";
const char *end_txt = "-------------------------- END OF SIP message debug ---------------------------\n\n";
struct dest_info send_info;
str obuf;
if (msg->first_line.type != SIP_REPLY && get_route_type() != REQUEST_ROUTE) {
LM_ERR("invalid usage - not in request route\n");
return -1;
}
if (level != NULL) {
/* substract L_OFFSET previously added */
ilevel = (int)(long)level - L_OFFSET;
}
if (facility != NULL) {
ifacility = (int)(long)facility;
}
/* msg_apply_changes_f code needed to get the current msg */
init_dest_info(&send_info);
send_info.proto = PROTO_UDP;
if(msg->first_line.type == SIP_REPLY) {
obuf.s = generate_res_buf_from_sip_res(msg,
(unsigned int*)&obuf.len, BUILD_NO_VIA1_UPDATE);
} else {
obuf.s = build_req_buf_from_sip_req(msg,
(unsigned int*)&obuf.len, &send_info,
BUILD_NO_PATH|BUILD_NO_LOCAL_VIA|BUILD_NO_VIA1_UPDATE);
}
if(obuf.s == NULL)
{
LM_ERR("couldn't update msg buffer content\n");
return -1;
}
if(obuf.len >= BUF_SIZE)
{
LM_ERR("new buffer overflow (%d)\n", obuf.len);
pkg_free(obuf.s);
return -1;
}
/* skip original uri */
if(msg->first_line.type == SIP_REQUEST) {
if(msg->new_uri.s) {
orig_offs = msg->first_line.u.request.uri.s - msg->buf;
orig_offs += msg->first_line.u.request.uri.len;
}
}
/* alloc private mem and copy lumps */
hdr_lumps = pkg_malloc(BUF_SIZE);
bdy_lumps = pkg_malloc(BUF_SIZE);
new_buf_offs = 0;
process_lumps(msg, msg->add_rm, hdr_lumps, &new_buf_offs, &orig_offs, &send_info, flag);
new_buf_offs = 0;
process_lumps(msg, msg->body_lumps, bdy_lumps, &new_buf_offs, &orig_offs, &send_info, flag);
/* do the print */
if (_dbg_sip_msg_cline < 0 ) {
LOG_FC(ifacility, ilevel, "CONFIG LINE unknown\n%s%.*s%s%s%s%s%s",
start_txt,
obuf.len, obuf.s,
hdr_txt, hdr_lumps,
bdy_txt, bdy_lumps,
end_txt);
} else {
LOG_FC(ifacility, ilevel, "CONFIG LINE %d\n%s%.*s%s%s%s%s%s",
_dbg_sip_msg_cline,
start_txt,
obuf.len, obuf.s,
hdr_txt, hdr_lumps,
bdy_txt, bdy_lumps,
end_txt);
}
/* free lumps */
if (hdr_lumps) {
pkg_free(hdr_lumps);
}
if (bdy_lumps) {
pkg_free(bdy_lumps);
}
return 1;
}
