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130 lines
3.7 KiB
130 lines
3.7 KiB
/*
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* Options Reply Module
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*
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* Copyright (C) 2001-2003 FhG Fokus
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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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* \file siputils/options.c
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* \brief SIP-utils :: Options reply modules
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* \ingroup siputils
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* Module: \ref siputils
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*/
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#ifdef EXTRA_DEBUG
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#include <stdlib.h> /* required by abort() */
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#endif
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#include "options.h"
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#include "../../ut.h"
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#include "../../mem/mem.h"
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#include "../../data_lump_rpl.h"
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#include "../../parser/parse_uri.h"
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static str opt_200_rpl = str_init("OK");
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static str opt_500_rpl = str_init("Server internal error");
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int opt_reply(struct sip_msg* _msg, char* _foo, char* _bar) {
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str rpl_hf;
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int offset = 0;
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/* check if it is called for an OPTIONS request */
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if (_msg->REQ_METHOD!=METHOD_OPTIONS) {
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LM_ERR("called for non-OPTIONS request\n");
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return -1;
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}
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if(_msg->parsed_uri_ok==0 && parse_sip_msg_uri(_msg)<0)
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{
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LM_ERR("ERROR while parsing the R-URI\n");
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return -1;
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}
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/* FIXME: should we additionally check if ruri == server addresses ?! */
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if (_msg->parsed_uri.user.len != 0) {
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LM_ERR("ruri contains username\n");
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return -1;
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}
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/* calculate the length and allocated the mem */
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rpl_hf.len = ACPT_STR_LEN + ACPT_ENC_STR_LEN + ACPT_LAN_STR_LEN +
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SUPT_STR_LEN + 4*HF_SEP_STR_LEN + opt_accept.len + opt_accept_enc.len
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+ opt_accept_lang.len + opt_supported.len;
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rpl_hf.s = (char*)pkg_malloc(rpl_hf.len);
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if (!rpl_hf.s) {
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LM_CRIT("out of pkg memory\n");
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goto error;
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}
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/* create the header fields */
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memcpy(rpl_hf.s, ACPT_STR, ACPT_STR_LEN);
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offset = ACPT_STR_LEN;
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memcpy(rpl_hf.s + offset, opt_accept.s, opt_accept.len);
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offset += opt_accept.len;
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memcpy(rpl_hf.s + offset, HF_SEP_STR, HF_SEP_STR_LEN);
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offset += HF_SEP_STR_LEN;
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memcpy(rpl_hf.s + offset, ACPT_ENC_STR, ACPT_ENC_STR_LEN);
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offset += ACPT_ENC_STR_LEN;
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memcpy(rpl_hf.s + offset, opt_accept_enc.s, opt_accept_enc.len);
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offset += opt_accept_enc.len;
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memcpy(rpl_hf.s + offset, HF_SEP_STR, HF_SEP_STR_LEN);
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offset += HF_SEP_STR_LEN;
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memcpy(rpl_hf.s + offset, ACPT_LAN_STR, ACPT_LAN_STR_LEN);
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offset += ACPT_LAN_STR_LEN;
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memcpy(rpl_hf.s + offset, opt_accept_lang.s, opt_accept_lang.len);
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offset += opt_accept_lang.len;
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memcpy(rpl_hf.s + offset, HF_SEP_STR, HF_SEP_STR_LEN);
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offset += HF_SEP_STR_LEN;
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memcpy(rpl_hf.s + offset, SUPT_STR, SUPT_STR_LEN);
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offset += SUPT_STR_LEN;
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memcpy(rpl_hf.s + offset, opt_supported.s, opt_supported.len);
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offset += opt_supported.len;
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memcpy(rpl_hf.s + offset, HF_SEP_STR, HF_SEP_STR_LEN);
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#ifdef EXTRA_DEBUG
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offset += HF_SEP_STR_LEN;
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if (offset != rpl_hf.len) {
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LM_CRIT("headerlength (%i) != offset (%i)\n", rpl_hf.len, offset);
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abort();
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}
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#endif
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if (add_lump_rpl( _msg, rpl_hf.s, rpl_hf.len,
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LUMP_RPL_HDR|LUMP_RPL_NODUP)!=0) {
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if (opt_slb.freply(_msg, 200, &opt_200_rpl) == -1) {
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LM_ERR("failed to send 200 via send_reply\n");
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return -1;
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}
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else
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return 0;
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} else {
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pkg_free(rpl_hf.s);
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LM_ERR("add_lump_rpl failed\n");
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}
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error:
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if (opt_slb.freply(_msg, 500, &opt_500_rpl) == -1) {
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LM_ERR("failed to send 500 via send_reply\n");
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return -1;
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}
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else
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return 0;
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}
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