262 lines
6.9 KiB
C
262 lines
6.9 KiB
C
/*
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* This file is part of the Sofia-SIP package
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*
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* Copyright (C) 2005 Nokia Corporation.
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*
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* Contact: Pekka Pessi <pekka.pessi@nokia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef MSG_INTERNAL_H
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/** Defined when <msg_internal.h> has been included. */
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#define MSG_INTERNAL_H
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/**@IFILE msg_internal.h
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* @brief Abstract messages - internal interface
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*
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* @author Pekka Pessi <Pekka.Pessi@nokia.com>
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*
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* @date Created: Thu Jun 29 15:58:06 2000 ppessi
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*
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*/
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#ifdef MSG_H
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#error "msg_internal.h" should be included before "msg.h"
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#endif
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#include "sofia-sip/msg.h"
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#include "sofia-sip/msg_addr.h"
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#include "sofia-sip/msg_buffer.h"
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#ifndef SU_ALLOC_H
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#include <sofia-sip/su_alloc.h>
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#endif
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SOFIA_BEGIN_DECLS
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/* ---------------------------------------------------------------------- */
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/* Types used when handling streaming */
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typedef struct msg_buffer_s msg_buffer_t;
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/* ---------------------------------------------------------------------- */
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struct msg_s {
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su_home_t m_home[1]; /**< Memory home */
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msg_mclass_t const *m_class; /**< Message class */
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int m_oflags; /**< Original flags */
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msg_pub_t *m_object; /**< Public view to parsed message */
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size_t m_maxsize;/**< Maximum size */
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size_t m_size; /**< Total size of fragments */
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msg_header_t *m_chain; /**< Fragment chain */
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msg_header_t **m_tail; /**< Tail of fragment chain */
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msg_payload_t *m_chunk; /**< Incomplete payload fragment */
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/* Parsing/printing buffer */
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struct msg_mbuffer_s {
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char *mb_data; /**< Pointer to data */
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usize_t mb_size; /**< Size of buffer */
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usize_t mb_used; /**< Used data */
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usize_t mb_commit; /**< Data committed to msg */
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unsigned mb_eos:1; /**< End-of-stream flag */
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unsigned :0;
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} m_buffer[1];
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msg_buffer_t *m_stream; /**< User-provided buffers */
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size_t m_ssize; /**< Stream size */
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unsigned short m_extract_err; /**< Bitmask of erroneous headers */
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/* Internal flags */
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unsigned m_set_buffer:1;/**< Buffer has been set */
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unsigned m_streaming:1; /**< Use streaming with message */
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unsigned m_prepared:1; /**< Prepared/not */
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unsigned :0;
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msg_t *m_next; /**< Next message */
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msg_t *m_parent; /**< Reference to a parent message */
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int m_refs; /**< Number of references to this message */
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su_addrinfo_t m_addrinfo; /**< Message addressing info (protocol) */
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su_sockaddr_t m_addr[1]; /**< Message address */
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int m_errno; /**< Errno */
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};
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/** Buffer for message body. */
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struct msg_buffer_s {
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char *b_data; /**< Data - may contain NUL */
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size_t b_size; /**< Length of message payload */
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size_t b_used; /**< Used data */
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size_t b_avail; /**< Available data */
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int b_complete; /**< This buffer completes the message */
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msg_buffer_t *b_next; /**< Next buffer */
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msg_payload_t *b_chunks; /**< List of body chunks */
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};
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struct hep_hdr{
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uint8_t hp_v; /* version */
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uint8_t hp_l; /* length */
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uint8_t hp_f; /* family */
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uint8_t hp_p; /* protocol */
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uint16_t hp_sport; /* source port */
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uint16_t hp_dport; /* destination port */
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};
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struct hep_iphdr{
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struct in_addr hp_src;
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struct in_addr hp_dst; /* source and dest address */
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};
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/* HEPv2 */
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struct hep_timehdr{
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uint32_t tv_sec; /* seconds */
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uint32_t tv_usec; /* useconds */
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uint16_t captid; /* Capture ID node */
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};
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#if SU_HAVE_IN6
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struct hep_ip6hdr {
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struct in6_addr hp6_src; /* source address */
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struct in6_addr hp6_dst; /* destination address */
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};
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#endif
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/* HEPv3 types */
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struct hep_chunk {
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uint16_t vendor_id;
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uint16_t type_id;
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uint16_t length;
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} __attribute__((packed));
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typedef struct hep_chunk hep_chunk_t;
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struct hep_chunk_uint8 {
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hep_chunk_t chunk;
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uint8_t data;
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} __attribute__((packed));
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typedef struct hep_chunk_uint8 hep_chunk_uint8_t;
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struct hep_chunk_uint16 {
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hep_chunk_t chunk;
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uint16_t data;
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} __attribute__((packed));
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typedef struct hep_chunk_uint16 hep_chunk_uint16_t;
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struct hep_chunk_uint32 {
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hep_chunk_t chunk;
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uint32_t data;
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} __attribute__((packed));
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typedef struct hep_chunk_uint32 hep_chunk_uint32_t;
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struct hep_chunk_str {
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hep_chunk_t chunk;
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char *data;
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} __attribute__((packed));
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typedef struct hep_chunk_str hep_chunk_str_t;
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struct hep_chunk_ip4 {
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hep_chunk_t chunk;
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struct in_addr data;
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} __attribute__((packed));
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typedef struct hep_chunk_ip4 hep_chunk_ip4_t;
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struct hep_chunk_ip6 {
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hep_chunk_t chunk;
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struct in6_addr data;
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} __attribute__((packed));
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typedef struct hep_chunk_ip6 hep_chunk_ip6_t;
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struct hep_chunk_payload {
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hep_chunk_t chunk;
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char *data;
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} __attribute__((packed));
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typedef struct hep_chunk_payload hep_chunk_payload_t;
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struct hep_ctrl {
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char id[4];
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uint16_t length;
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} __attribute__((packed));
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typedef struct hep_ctrl hep_ctrl_t;
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struct hep_generic {
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hep_ctrl_t header;
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hep_chunk_uint8_t ip_family;
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hep_chunk_uint8_t ip_proto;
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hep_chunk_uint16_t src_port;
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hep_chunk_uint16_t dst_port;
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hep_chunk_uint32_t time_sec;
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hep_chunk_uint32_t time_usec;
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hep_chunk_uint8_t proto_t;
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hep_chunk_uint32_t capt_id;
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} __attribute__((packed));
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typedef struct hep_generic hep_generic_t;
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/** Maximum size when streaming. */
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#define MSG_SSIZE_MAX (USIZE_MAX)
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/* ---------------------------------------------------------------------- */
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/* Header-kind predicate functions. */
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su_inline int msg_is_single(msg_header_t const *h)
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{
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return h->sh_class->hc_kind == msg_kind_single;
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}
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su_inline int msg_is_prepend(msg_header_t const *h)
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{
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return h->sh_class->hc_kind == msg_kind_prepend;
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}
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su_inline int msg_is_append(msg_header_t const *h)
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{
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return
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h->sh_class->hc_kind == msg_kind_append ||
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h->sh_class->hc_kind == msg_kind_apndlist;
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}
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su_inline int msg_is_list(msg_header_t const *h)
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{
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return h->sh_class->hc_kind == msg_kind_list;
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}
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su_inline int msg_is_special(msg_header_t const *h)
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{
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return h->sh_class->hc_hash < 0;
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}
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SOFIA_END_DECLS
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#endif /* MSG_INTERNAL_H */
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