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							175 lines
						
					
					
						
							5.0 KiB
						
					
					
				| /*
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|  * Asterisk -- An open source telephony toolkit.
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|  *
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|  * Copyright (C) 2010, Digium, Inc.
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|  *
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|  * See http://www.asterisk.org for more information about
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|  * the Asterisk project. Please do not directly contact
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|  * any of the maintainers of this project for assistance;
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|  * the project provides a web site, mailing lists and IRC
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|  * channels for your use.
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|  *
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|  * This program is free software, distributed under the terms of
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|  * the GNU General Public License Version 2. See the LICENSE file
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|  * at the top of the source tree.
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|  */
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| 
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| /*!
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|  * \file
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|  * \brief sip request response parser header file
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|  */
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| 
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| #ifndef _SIP_REQRESP_H
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| #define _SIP_REQRESP_H
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| 
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| /*!
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|  * \brief parses a URI in its components.
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|  *
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|  * \note
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|  * - Multiple scheme's can be specified ',' delimited. ex: "sip:,sips:"
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|  * - If a component is not requested, do not split around it. This means
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|  *   that if we don't have domain, we cannot split name:pass.
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|  * - It is safe to call with ret_name, pass, domain, port pointing all to
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|  *   the same place.
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|  * - If no secret parameter is provided, ret_name will return with both parts, user:secret
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|  * - If no port parameter is provided, domain will return with both parts, domain:port
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|  * - This function overwrites the the uri string.
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|  * 
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|  * \retval 0 on success
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|  * \retval -1 on error.
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|  *
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|  * \verbatim
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|  * general form we are expecting is sip:user:password;user-parameters@host:port;uri-parameters?headers
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|  * \endverbatim
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|  */
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| int parse_uri(char *uri, const char *scheme, char **ret_name, char **pass,
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| 	      char **domain, char **transport);
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| 
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| /*!
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|  * \brief parses a URI in to all of its components and any trailing residue
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|  *
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|  * \retval 0 on success
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|  * \retval -1 on error.
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|  *
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|  */
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| int parse_uri_full(char *uri, const char *scheme, char **user, char **pass,
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| 		   char **domain, struct uriparams *params, char **headers,
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| 		   char **residue);
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| 
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| /*!
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|  * \brief  Get caller id name from SIP headers, copy into output buffer
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|  *
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|  * \retval input string pointer placed after display-name field if possible
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|  */
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| const char *get_calleridname(const char *input, char *output, size_t outputsize);
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| 
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| /*!
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|  * \brief  Get name and number from sip header
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|  *
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|  * \note name and number point to malloced memory on return and must be
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|  * freed. If name or number is not found, they will be returned as NULL.
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|  *
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|  * \retval 0 success
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|  * \retval -1 failure
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|  */
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| int get_name_and_number(const char *hdr, char **name, char **number);
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| 
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| /*! \brief Pick out text in brackets from character string
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|  * \return pointer to terminated stripped string
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|  * \param tmp input string that will be modified
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|  *
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|  * Examples:
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|  * \verbatim
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|  * "foo" <bar>	valid input, returns bar
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|  *  foo returns the whole string
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|  * < "foo ... >	returns the string between brackets
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|  * < "foo...    bogus (missing closing bracket), returns the whole string
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|  * \endverbatim
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|  */
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| char *get_in_brackets(char *tmp);
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| 
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| /*! \brief Get text in brackets and any trailing residue
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|  *
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|  * \retval 0 success
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|  * \retval -1 failure
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|  * \retval 1 no brackets so got all
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|  */
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| int get_in_brackets_full(char *tmp, char **out, char **residue);
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| 
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| /*! \brief Parse the ABNF structure
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|  * name-andor-addr = name-addr / addr-spec
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|  * into its components and return any trailing message-header parameters
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|  *
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|  * \retval 0 success
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|  * \retval -1 failure
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|  */
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| int parse_name_andor_addr(char *uri, const char *scheme, char **name,
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| 			  char **user, char **pass, char **domain,
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| 			  struct uriparams *params, char **headers,
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| 			  char **remander);
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| 
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| /*! \brief Parse all contact header contacts
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|  * \retval 0 success
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|  * \retval -1 failure
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|  * \retval 1 all contacts (star)
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|  */
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| 
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| int get_comma(char *parse, char **out);
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| 
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| int parse_contact_header(char *contactheader, struct contactliststruct *contactlist);
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| 
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| /*!
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|  * \brief register request parsing tests
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|  */
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| void sip_request_parser_register_tests(void);
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| 
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| /*!
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|  * \brief unregister request parsing tests
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|  */
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| void sip_request_parser_unregister_tests(void);
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| 
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| /*!
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|  * \brief Parse supported header in incoming packet
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|  *
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|  * \details This function parses through the options parameters and
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|  * builds a bit field representing all the SIP options in that field. When an
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|  * item is found that is not supported, it is copied to the unsupported
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|  * out buffer.
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|  *
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|  * \param option list
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|  * \param unsupported out buffer (optional)
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|  * \param unsupported out buffer length (optional)
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|  */
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| unsigned int parse_sip_options(const char *options, char *unsupported, size_t unsupported_len);
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| 
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| /*!
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|  * \brief Compare two URIs as described in RFC 3261 Section 19.1.4
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|  *
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|  * \param input1 First URI
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|  * \param input2 Second URI
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|  * \retval 0 URIs match
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|  * \retval nonzero URIs do not match or one or both is malformed
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|  */
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| int sip_uri_cmp(const char *input1, const char *input2);
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| 
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| /*!
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|  * \brief initialize request and response parser data
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|  *
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|  * \retval 0 Success
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|  * \retval -1 Failure
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|  */
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| int sip_reqresp_parser_init(void);
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| 
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| /*!
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|  * \brief Free resources used by request and response parser
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|  */
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| void sip_reqresp_parser_exit(void);
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| 
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| /*!
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|  * \brief Parse the VIA header into it's parts.
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|  *
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|  * \note This will modify the string
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|  */
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| void get_viabranch(char *via, char **sent_by, char **branch);
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| #endif
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