1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SIP_DIALOG_H 28 #define _SIP_DIALOG_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <pthread.h> 37 #include <sip.h> 38 #include <sys/types.h> 39 40 #include "sip_msg.h" 41 #include "sip_miscdefs.h" 42 43 /* 44 * Dialogs are linked in their own list. 45 */ 46 47 48 /* This is always done within sip_dlg_mutex */ 49 #define SIP_DLG_REFCNT_INCR(dialog) \ 50 (dialog)->sip_dlg_ref_cnt++; 51 52 #define SIP_DLG_REFCNT_DECR(dialog) { \ 53 (void) pthread_mutex_lock(&((dialog)->sip_dlg_mutex)); \ 54 assert((dialog)->sip_dlg_ref_cnt > 0); \ 55 (dialog)->sip_dlg_ref_cnt--; \ 56 if ((dialog)->sip_dlg_ref_cnt == 0 && \ 57 (dialog)->sip_dlg_state == SIP_DLG_DESTROYED) { \ 58 (void) pthread_mutex_unlock(&((dialog)->sip_dlg_mutex)); \ 59 sip_dialog_delete(dialog); \ 60 } else { \ 61 (void) pthread_mutex_unlock(&((dialog)->sip_dlg_mutex));\ 62 } \ 63 } 64 65 /* The dialog structure */ 66 typedef struct sip_dialog 67 { 68 _sip_header_t *sip_dlg_remote_uri_tag; 69 _sip_header_t *sip_dlg_local_uri_tag; 70 _sip_header_t *sip_dlg_remote_target; 71 _sip_header_t *sip_dlg_local_contact; 72 _sip_header_t *sip_dlg_new_local_contact; /* for re-INVITE */ 73 _sip_header_t *sip_dlg_route_set; 74 _sip_header_t *sip_dlg_event; 75 sip_str_t sip_dlg_rset; 76 sip_str_t sip_dlg_req_uri; 77 _sip_header_t *sip_dlg_call_id; 78 uint32_t sip_dlg_local_cseq; 79 uint32_t sip_dlg_remote_cseq; 80 uint16_t sip_dlg_id[8]; 81 boolean_t sip_dlg_secure; 82 dialog_state_t sip_dlg_state; 83 int sip_dlg_type; /* CALLEE or CALLER */ 84 pthread_mutex_t sip_dlg_mutex; 85 uint32_t sip_dlg_ref_cnt; 86 sip_timer_t sip_dlg_timer; /* to delete partial dialogs */ 87 boolean_t sip_dlg_on_fork; 88 sip_method_t sip_dlg_method; 89 void *sip_dlg_ctxt; /* currently unused */ 90 } _sip_dialog_t; 91 92 void sip_dialog_init(void (*sip_ulp_dlg_del)(sip_dialog_t, 93 sip_msg_t, void *), 94 void (*ulp_dlg_state)(sip_dialog_t, sip_msg_t, 95 int, int)); 96 sip_dialog_t sip_dialog_create(_sip_msg_t *, _sip_msg_t *, int); 97 sip_dialog_t sip_dialog_find(_sip_msg_t *); 98 int sip_dialog_process(_sip_msg_t *, sip_dialog_t *); 99 sip_dialog_t sip_update_dialog(sip_dialog_t, _sip_msg_t *); 100 void sip_dialog_add_new_contact(sip_dialog_t, _sip_msg_t *); 101 void sip_dialog_terminate(sip_dialog_t, sip_msg_t); 102 sip_dialog_t sip_seed_dialog(sip_conn_object_t, _sip_msg_t *, 103 boolean_t, int); 104 char *sip_dialog_req_uri(sip_dialog_t); 105 void sip_dialog_delete(_sip_dialog_t *); 106 extern boolean_t sip_incomplete_dialog(sip_dialog_t); 107 108 #ifdef __cplusplus 109 } 110 #endif 111 112 #endif /* _SIP_DIALOG_H */ 113