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+/*
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+ * $Id$
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+ *
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+ * Copyright (C) 2012 Smile Communications, [email protected]
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+ * Copyright (C) 2012 Smile Communications, [email protected]
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+ *
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+ * The initial version of this code was written by Dragos Vingarzan
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+ * (dragos(dot)vingarzan(at)fokus(dot)fraunhofer(dot)de and the
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+ * Fruanhofer Institute. It was and still is maintained in a separate
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+ * branch of the original SER. We are therefore migrating it to
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+ * Kamailio/SR and look forward to maintaining it from here on out.
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+ * 2011/2012 Smile Communications, Pty. Ltd.
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+ * ported/maintained/improved by
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+ * Jason Penton (jason(dot)penton(at)smilecoms.com and
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+ * Richard Good (richard(dot)good(at)smilecoms.com) as part of an
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+ * effort to add full IMS support to Kamailio/SR using a new and
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+ * improved architecture
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+ *
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+ * NB: Alot of this code was originally part of OpenIMSCore,
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+ * FhG Fokus.
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+ * Copyright (C) 2004-2006 FhG Fokus
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+ * Thanks for great work! This is an effort to
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+ * break apart the various CSCF functions into logically separate
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+ * components. We hope this will drive wider use. We also feel
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+ * that in this way the architecture is more complete and thereby easier
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+ * to manage in the Kamailio/SR environment
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+ *
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+ * This file is part of Kamailio, a free SIP server.
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+ *
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+ * Kamailio is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version
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+ *
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+ * Kamailio is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+ *
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+ */
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+
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+#include "pvt_message.h"
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+#include "../../modules/tm/tm_load.h"
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+
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+extern struct tm_binds tmb;
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+extern struct _pv_req_data _pv_treq;
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+
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+void pv_tmx_data_init(void) {
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+ memset(&_pv_treq, 0, sizeof (struct _pv_req_data));
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+}
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+
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+int pv_t_copy_msg(struct sip_msg *src, struct sip_msg *dst) {
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+ dst->id = src->id;
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+ dst->rcv = src->rcv;
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+ dst->set_global_address = src->set_global_address;
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+ dst->set_global_port = src->set_global_port;
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+ dst->flags = src->flags;
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+ dst->fwd_send_flags = src->fwd_send_flags;
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+ dst->rpl_send_flags = src->rpl_send_flags;
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+ dst->force_send_socket = src->force_send_socket;
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+
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+ if (parse_msg(dst->buf, dst->len, dst) != 0) {
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+ LM_ERR("parse msg failed\n");
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+ return -1;
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+ }
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+ return 0;
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+}
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+
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+struct sip_msg* get_request_from_tx(struct cell *t) {
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+ if (t == NULL) {
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+ t = tmb.t_gett();
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+ }
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+ if (!t || t == (void*) - 1) {
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+ LM_ERR("Reply without transaction\n");
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+ return 0;
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+ }
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+ if (t) {
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+
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+ /* we may need the request message from here on.. if there are headers we need that were not parsed in the original request
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+ (which we cannot assume) then we would pollute the shm_msg t->uas.request if we did any parsing on it. Instead, we need to
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+ make a private copy of the message and free it when we are done
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+ */
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+ if (_pv_treq.T != t || t->uas.request != _pv_treq.tmsgp
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+ && t->uas.request->id != _pv_treq.id) {
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+
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+ /* make a copy */
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+ if (_pv_treq.buf == NULL || _pv_treq.buf_size < t->uas.request->len + 1) {
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+ if (_pv_treq.buf != NULL)
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+ pkg_free(_pv_treq.buf);
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+ if (_pv_treq.tmsgp)
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+ free_sip_msg(&_pv_treq.msg);
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+ _pv_treq.tmsgp = NULL;
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+ _pv_treq.id = 0;
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+ _pv_treq.T = NULL;
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+ _pv_treq.buf_size = t->uas.request->len + 1;
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+ _pv_treq.buf = (char*) pkg_malloc(_pv_treq.buf_size * sizeof (char));
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+ if (_pv_treq.buf == NULL) {
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+ LM_ERR("no more pkg\n");
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+ _pv_treq.buf_size = 0;
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+ return 0;
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+ }
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+ }
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+ if (_pv_treq.tmsgp)
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+ free_sip_msg(&_pv_treq.msg);
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+ memset(&_pv_treq.msg, 0, sizeof (struct sip_msg));
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+ memcpy(_pv_treq.buf, t->uas.request->buf, t->uas.request->len);
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+ _pv_treq.buf[t->uas.request->len] = '\0';
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+ _pv_treq.msg.len = t->uas.request->len;
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+ _pv_treq.msg.buf = _pv_treq.buf;
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+ _pv_treq.tmsgp = t->uas.request;
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+ _pv_treq.id = t->uas.request->id;
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+ _pv_treq.T = t;
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+
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+
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+ if (pv_t_copy_msg(t->uas.request, &_pv_treq.msg) != 0) {
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+ pkg_free(_pv_treq.buf);
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+ _pv_treq.buf_size = 0;
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+ _pv_treq.buf = NULL;
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+ _pv_treq.tmsgp = NULL;
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+ _pv_treq.T = NULL;
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+ return 0;
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+ }
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+ }
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+
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+ return &_pv_treq.msg;
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+ } else
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+ return 0;
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+
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+}
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jaybeepee