Module: sip-router Branch: janakj/kcore Commit: 822a61e21b628272861a1dad6ba571acdf819c8b URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=822a61e… Author: Jan Janak &lt;jan(a)iptel.org&gt; Committer: Jan Janak &lt;jan(a)iptel.org&gt; Date: Sun Mar 15 17:55:11 2009 +0100 Adding P-Preferred-Identity header parser from kamailio core --- lib/kcore/parse_ppi.c | 122 +++++++++++++++++++++++++++++++++++++++++++++++++ lib/kcore/parse_ppi.h | 52 +++++++++++++++++++++ 2 files changed, 174 insertions(+), 0 deletions(-) diff --git a/lib/kcore/parse_ppi.c b/lib/kcore/parse_ppi.c new file mode 100644 index 0000000..791c3aa --- /dev/null +++ b/lib/kcore/parse_ppi.c @@ -0,0 +1,122 @@ +/* + * $Id$ + * + * Copyright (C) 2006 Juha Heinanen + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/*! + * \file + * \brief P-Preferred-Identity header parser + * \ingroup parser + */ + +#include "parse_ppi.h" +#include "parse_to.h" +#include "parse_uri.h" +#include <stdlib.h> +#include <string.h> +#include "../dprint.h" +#include "msg_parser.h" +#include "../ut.h" +#include "../errinfo.h" +#include "../mem/mem.h" + + +/*! + * \brief This method is used to parse P-Preferred-Identity header (RFC 3325). + * + * Currently only one name-addr / addr-spec is supported in the header + * and it must contain a sip or sips URI. + * \param msg sip msg + * \return 0 on success, -1 on failure. + */ +int parse_ppi_header( struct sip_msg *msg ) +{ + struct to_body* ppi_b; + + if ( !msg->ppi && + (parse_headers(msg, HDR_PPI_F,0)==-1 || !msg->ppi)) { + goto error; + } + + /* maybe the header is already parsed! */ + if (msg->ppi->parsed) + return 0; + + /* bad luck! :-( - we have to parse it */ + /* first, get some memory */ + ppi_b = pkg_malloc(sizeof(struct to_body)); + if (ppi_b == 0) { + LM_ERR("out of pkg_memory\n"); + goto error; + } + + /* now parse it!! */ + memset(ppi_b, 0, sizeof(struct to_body)); + parse_to(msg->ppi->body.s, + msg->ppi->body.s + msg->ppi->body.len+1, + ppi_b); + if (ppi_b->error == PARSE_ERROR) { + LM_ERR("bad P-Preferred-Identity header\n"); + pkg_free(ppi_b); + goto error; + } + msg->ppi->parsed = ppi_b; + + return 0; + error: + return -1; +} + + +/*! + * \brief Parse P-Preferred-Identity header URI + */ +struct sip_uri *parse_ppi_uri(struct sip_msg *msg) +{ + struct to_body *tb = NULL; + + if(msg==NULL) + return NULL; + + if(parse_ppi_header(msg)<0) + { + LM_ERR("cannot parse P-P-I header\n"); + return NULL; + } + + if(msg->ppi==NULL || get_ppi(msg)==NULL) + return NULL; + + tb = get_ppi(msg); + + if(tb->parsed_uri.user.s!=NULL || tb->parsed_uri.host.s!=NULL) + return &tb->parsed_uri; + + if (parse_uri(tb->uri.s, tb->uri.len , &tb->parsed_uri)<0) + { + LM_ERR("failed to parse P-P-I URI\n"); + memset(&tb->parsed_uri, 0, sizeof(struct sip_uri)); + set_err_info(OSER_EC_PARSER, OSER_EL_MEDIUM, "error parsing P-P-I URI"); + set_err_reply(400, "bad P-Preferred-Identity uri"); + return NULL; + } + + return &tb->parsed_uri; +} diff --git a/lib/kcore/parse_ppi.h b/lib/kcore/parse_ppi.h new file mode 100644 index 0000000..ff0d26c --- /dev/null +++ b/lib/kcore/parse_ppi.h @@ -0,0 +1,52 @@ +/* + * $Id$ + * + * Copyright (C) 2006 Juha Heinanen + * + * This file is part of Kamailio, a free SIP server. + * + * Kamailio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version + * + * Kamailio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/*! + * \file + * \brief P-Preferred-Identity header parser + * \ingroup parser + */ + +#ifndef PARSE_PPI_H +#define PARSE_PPI_H + +#include "msg_parser.h" + + +/*! casting macro for accessing P-Preferred-Identity body */ +#define get_ppi(p_msg) ((struct to_body*)(p_msg)->ppi->parsed) + + +/*! + * \brief This method is used to parse P-Preferred-Identity header (RFC 3325). + * + * Currently only one name-addr / addr-spec is supported in the header + * and it must contain a sip or sips URI. + * \param msg sip msg + * \return 0 on success, -1 on failure. + */ +int parse_ppi_header( struct sip_msg *msg); + +struct sip_uri *parse_ppi_uri(struct sip_msg *msg); + +#endif /* PARSE_PPI_H */