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127 lines
3.4 KiB
127 lines
3.4 KiB
/*
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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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* \file
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* \brief Exec module:: Header Field handling
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* \ingroup exec
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* Module: \ref exec
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*/
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#ifndef _EXEC_HF_H
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#define _EXEC_HF_H
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#include "../../parser/msg_parser.h"
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/* prefix prepended to header field name in env var name */
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#define SIP "SIP_"
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#define HF_PREFIX SIP "HF_"
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#define HF_PREFIX_LEN (sizeof(HF_PREFIX)-1)
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/* well known variable names */
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#define EV_SRCIP SIP "SRCIP"
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#define EV_RURI SIP "RURI"
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#define EV_ORURI SIP "ORUI"
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#define EV_USER SIP "USER"
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#define EV_OUSER SIP "OUSER"
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#define EV_TID SIP "TID"
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#define EV_DID SIP "DID"
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/* env var assignment operator */
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#define EV_ASSIGN '='
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/* header field separator */
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#define HF_SEPARATOR ','
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/* RFC3261 -- characters legal in header names; a really
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* _bloated_ thing
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*/
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#define UNRESERVED_MARK "-_.!~*'()"
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#define HNV_UNRESERVED "[]/?:+$"
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#define ESCAPE '%'
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/* and this is what all such crazy symbols in header field
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* name will be replaced with in env vars */
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#define HFN_SYMBOL '_'
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#define VAR_VIA "VIA"
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#define VAR_VIA_LEN (sizeof(VAR_VIA)-1)
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#define VAR_CTYPE "CONTENT_TYPE"
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#define VAR_CTYPE_LEN (sizeof(VAR_CTYPE)-1)
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#define VAR_FROM "FROM"
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#define VAR_FROM_LEN (sizeof(VAR_FROM)-1)
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#define VAR_CALLID "CALLID"
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#define VAR_CALLID_LEN (sizeof(VAR_CALLID)-1)
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#define VAR_SUPPORTED "SUPPORTED"
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#define VAR_SUPPORTED_LEN (sizeof(VAR_SUPPORTED)-1)
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#define VAR_CLEN "CONTENT_LENGTH"
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#define VAR_CLEN_LEN (sizeof(VAR_CLEN)-1)
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#define VAR_CONTACT "CONTACT"
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#define VAR_CONTACT_LEN (sizeof(VAR_CONTACT)-1)
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#define VAR_TO "TO"
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#define VAR_TO_LEN (sizeof(VAR_TO)-1)
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#define VAR_EVENT "EVENT"
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#define VAR_EVENT_LEN (sizeof(VAR_EVENT)-1)
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#if 0
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/* _JUST_FOR_INFO_HERE */
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struct hdr_field {
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int type; /* Header field type */
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str name; /* Header field name */
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str body; /* Header field body */
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void* parsed; /* Parsed data structures */
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struct hdr_field* next; /* Next header field in the list */
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};
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#endif
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typedef struct env {
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char** env;
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int old_cnt;
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} environment_t;
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struct attrval {
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str attr;
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str val;
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};
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enum wrapper_type { W_HF=1, W_AV };
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struct hf_wrapper {
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enum wrapper_type var_type;
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union {
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struct hdr_field *hf;
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struct attrval av;
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} u;
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/* next header field of the same type */
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struct hf_wrapper *next_same;
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/* next header field of a different type */
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struct hf_wrapper *next_other;
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/* env var value (zero terminated) */
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char *envvar;
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/* variable name prefix (if any) */
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char *prefix;
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int prefix_len;
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};
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extern unsigned int setvars;
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extern char **environ;
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environment_t *set_env(struct sip_msg *msg);
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void unset_env(environment_t *backup_env);
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#endif
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