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Implemented major feature: call hold and transfer 

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@212 74dad513-b988-da41-8d7b-12977e46ad98
This commit is contained in:
Benny Prijono 2006-02-21 23:47:00 +00:00
parent 9ffa6a8da3
commit 26ff906cfe
22 changed files with 2333 additions and 318 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
pjsip/build/pjsip_ua.dsp
View File

@ -93,6 +93,10 @@ SOURCE="..\src\pjsip-ua\sip_inv.c"
SOURCE="..\src\pjsip-ua\sip_reg.c"
# End Source File
# Begin Source File
SOURCE="..\src\pjsip-ua\sip_xfer.c"
# End Source File
# End Group
# Begin Group "Header Files"
@ -109,6 +113,10 @@ SOURCE="..\include\pjsip-ua\sip_inv.h"
SOURCE="..\include\pjsip-ua\sip_regc.h"
# End Source File
# Begin Source File
SOURCE="..\include\pjsip-ua\sip_xfer.h"
# End Source File
# End Group
# End Target
# End Project

22
pjsip/include/pjsip-simple/errno.h
View File

@ -22,48 +22,54 @@
#include <pjsip/sip_errno.h>
/**
* Start of error code relative to PJ_ERRNO_START_USER.
*/
#define PJSIP_SIMPLE_ERRNO_START (PJ_ERRNO_START_USER + PJ_ERRNO_SPACE_SIZE*2)
/**
* @hideinitializer
* No event package with the specified name.
*/
#define PJSIP_SIMPLE_ENOPKG -1
#define PJSIP_SIMPLE_ENOPKG (PJSIP_SIMPLE_ERRNO_START+1) /*270001*/
/**
* @hideinitializer
* Event package already exists.
*/
#define PJSIP_SIMPLE_EPKGEXISTS -1
#define PJSIP_SIMPLE_EPKGEXISTS (PJSIP_SIMPLE_ERRNO_START+2) /*270002*/
/**
* @hideinitializer
* Expecting SUBSCRIBE request
*/
#define PJSIP_SIMPLE_ENOTSUBSCRIBE -1
#define PJSIP_SIMPLE_ENOTSUBSCRIBE (PJSIP_SIMPLE_ERRNO_START+20) /*270020*/
/**
* @hideinitializer
* No presence associated with subscription
*/
#define PJSIP_SIMPLE_ENOPRESENCE -1
#define PJSIP_SIMPLE_ENOPRESENCE (PJSIP_SIMPLE_ERRNO_START+21) /*270021*/
/**
* @hideinitializer
* No presence info in server subscription
*/
#define PJSIP_SIMPLE_ENOPRESENCEINFO -1
#define PJSIP_SIMPLE_ENOPRESENCEINFO (PJSIP_SIMPLE_ERRNO_START+22) /*270022*/
/**
* @hideinitializer
* Bad Content-Type
*/
#define PJSIP_SIMPLE_EBADCONTENT -1
#define PJSIP_SIMPLE_EBADCONTENT (PJSIP_SIMPLE_ERRNO_START+23) /*270023*/
/**
* @hideinitializer
* Bad PIDF Message
*/
#define PJSIP_SIMPLE_EBADPIDF -1
#define PJSIP_SIMPLE_EBADPIDF (PJSIP_SIMPLE_ERRNO_START+24) /*270024*/
/**
* @hideinitializer
* Bad XPIDF Message
*/
#define PJSIP_SIMPLE_EBADXPIDF -1
#define PJSIP_SIMPLE_EBADXPIDF (PJSIP_SIMPLE_ERRNO_START+25) /*270025*/

22
pjsip/include/pjsip-simple/evsub.h
View File

@ -76,6 +76,19 @@ enum pjsip_evsub_state
typedef enum pjsip_evsub_state pjsip_evsub_state;
/**
* Some options for the event subscription.
*/
enum
{
/**
* If this flag is set, then outgoing request to create subscription
* will not have id in the Event header (e.g. in REFER request). But if
* there is an id in the incoming NOTIFY, that id will be used.
*/
PJSIP_EVSUB_NO_EVENT_ID = 1,
};
/**
* This structure describes callback that is registered by application or
@ -244,6 +257,7 @@ PJ_DECL(pj_status_t) pjsip_evsub_register_pkg( pjsip_module *pkg_mod,
* @param dlg The underlying dialog to use.
* @param user_cb Callback to receive event subscription notifications.
* @param event Event name.
* @param option Bitmask of options.
* @param p_evsub Pointer to receive event subscription instance.
*
* @return PJ_SUCCESS on success.
@ -251,6 +265,7 @@ PJ_DECL(pj_status_t) pjsip_evsub_register_pkg( pjsip_module *pkg_mod,
PJ_DECL(pj_status_t) pjsip_evsub_create_uac( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
const pj_str_t *event,
unsigned option,
pjsip_evsub **p_evsub);
/**
@ -260,6 +275,7 @@ PJ_DECL(pj_status_t) pjsip_evsub_create_uac( pjsip_dialog *dlg,
* @param user_cb Callback to receive event subscription notifications.
* @param rdata The incoming request that creates the event
* subscription, such as SUBSCRIBE or REFER.
* @param option Bitmask of options.
* @param p_evsub Pointer to receive event subscription instance.
*
* @return PJ_SUCCESS on success.
@ -267,6 +283,7 @@ PJ_DECL(pj_status_t) pjsip_evsub_create_uac( pjsip_dialog *dlg,
PJ_DECL(pj_status_t) pjsip_evsub_create_uas( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_rx_data *rdata,
unsigned option,
pjsip_evsub **p_evsub);
@ -366,7 +383,10 @@ PJ_DECL(pj_status_t) pjsip_evsub_current_notify( pjsip_evsub *sub,
/**
* Send request message.
* Send request message that was previously created with initiate(), notify(),
* or current_notify(). Application may also send request created with other
* functions, e.g. authentication. But the request MUST be either request
* that creates/refresh subscription or NOTIFY request.
*
* @param sub The event subscription object.
* @param tdata Request message to be send.

5
pjsip/include/pjsip-simple/presence.h
View File

@ -202,7 +202,10 @@ PJ_DECL(pj_status_t) pjsip_pres_current_notify( pjsip_evsub *sub,
/**
* Send request.
* Send request message that was previously created with initiate(), notify(),
* or current_notify(). Application may also send request created with other
* functions, e.g. authentication. But the request MUST be either request
* that creates/refresh subscription or NOTIFY request.
*
* @param sub The subscription object.
* @param tdata Request message to be sent.

31
pjsip/include/pjsip-ua/sip_inv.h
View File

@ -97,16 +97,13 @@ struct pjsip_inv_callback
/**
* This callback is called when the invite session has received
* new offer from peer. Application can inspect the remote offer
* by calling negotiator's pjmedia_sdp_neg_get_neg_remote(), and
* optionally specify a modified answer.
*
* This callback is optional. When it's not specified, the default
* behavior is nothing. After calling this callback, the negotiator
* will negotiate remote offer with session's initial capability.
* in "offer".
*
* @param inv The invite session.
* @param offer Remote offer.
*/
void (*on_rx_offer)(pjsip_inv_session *inv);
void (*on_rx_offer)(pjsip_inv_session *inv,
const pjmedia_sdp_session *offer);
/**
* This callback is called after SDP offer/answer session has completed.
@ -121,7 +118,6 @@ struct pjsip_inv_callback
*/
void (*on_media_update)(pjsip_inv_session *inv_ses,
pj_status_t status);
};
@ -387,23 +383,20 @@ PJ_DECL(pj_status_t) pjsip_inv_answer( pjsip_inv_session *inv,
pjsip_tx_data **p_tdata );
#if 0
If we implement this, we need to send SDP answer automatically on
subsequent request/response. Something like "has_answer" flag.
/**
* Set local answer to respond to remote SDP offer. By calling this function,
* application can start SDP negotiation immediately without having to
* send any request or response message. This function is normally called
* when on_rx_offer() callback is called.
* Set local answer to respond to remote SDP offer, to be carried by
* subsequent response (or request).
*
* @param inv The invite session.
* @param sdp The SDP description which will be set as answer
* to remote.
*
* @return PJ_SUCCESS if local answer can be accepted by
* SDP negotiator.
*/
PJ_DECL(pj_status_t) pjsip_inv_set_sdp_answer( pjsip_inv_session *inv,
const pjmedia_sdp_session *sdp );
#endif
PJ_DECL(pj_status_t) pjsip_inv_set_sdp_answer(pjsip_inv_session *inv,
const pjmedia_sdp_session *sdp );
/**
* Create a SIP message to initiate invite session termination. Depending on

175
pjsip/include/pjsip-ua/sip_xfer.h Normal file
View File

@ -0,0 +1,175 @@
/* $Id$ */
/*
* Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
*
* This program 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.
*
* This program 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
*/
#ifndef __PJSIP_XFER_H__
#define __PJSIP_XFER_H__
/**
* @file sip_xfer.h
* @brief SIP Transfer (REFER, RFC 3515)
*/
#include <pjsip-simple/evsub.h>
#include <pjsip/sip_msg.h>
PJ_BEGIN_DECL
/**
* Declaration for REFER method constant.
*/
extern const pjsip_method pjsip_refer_method;
/**
* Initialize the REFER subsystem.
* This currently does very little (only register REFER as supported method).
*/
PJ_DECL(pj_status_t) pjsip_xfer_init_module(pjsip_endpoint *endpt);
/**
* Create transferer (sender of REFER request).
*
* @param dlg The underlying dialog to use.
* @param user_cb Pointer to callbacks to receive presence subscription
* events.
* @param p_evsub Pointer to receive the presence subscription
* session.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_create_uac( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_evsub **p_evsub );
/**
* Create transferee (receiver of REFER request).
*
* @param dlg The underlying dialog to use.
* @param user_cb Pointer to callbacks to receive presence subscription
* events.
* @param rdata The incoming SUBSCRIBE request that creates the event
* subscription.
* @param p_evsub Pointer to receive the presence subscription
* session.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_create_uas( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_rx_data *rdata,
pjsip_evsub **p_evsub );
/**
* Call this function to create request to initiate REFER subscription,
* to refresh subscription, or to unsubscribe. For request other than
* the initial REFER request, "refer_to_uri" argument may be NULL.
*
* @param sub Client subscription instance.
* @param refer_to_uri URI to be put to the Refer-To header. This argument
* may be NULL for subsequent REFER requests.
* @param p_tdata Pointer to receive the request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_initiate( pjsip_evsub *sub,
const pj_str_t *refer_to_uri,
pjsip_tx_data **p_tdata);
/**
* Accept the incoming REFER request by sending 2xx response.
*
* @param sub Server subscription instance.
* @param rdata The incoming subscription request message.
* @param st_code Status code, which MUST be 2xx.
* @param hdr_list Optional list of headers to be added in the response.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_accept( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int st_code,
const pjsip_hdr *hdr_list );
/**
* For notifier, create NOTIFY request to subscriber, and set the state
* of the subscription.
*
* @param sub The server subscription (notifier) instance.
* @param state New state to set.
* @param xfer_st_code The call status code to be reported with the NOTIFY
* request.
* @param xfer_st_text Optional call status text to be reported with the
* NOTIFY request. If the value is NULL, default
* status text will be used.
* @param p_tdata Pointer to receive the request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_notify( pjsip_evsub *sub,
pjsip_evsub_state state,
int xfer_st_code,
const pj_str_t *xfer_st_text,
pjsip_tx_data **p_tdata);
/**
* Create NOTIFY request to reflect current subscription status. Application
* can only call this function after it has sent NOTIFY before.
* This will also re-send the last "message/sipfrag" body that was sent
* in the previous NOTIFY.
*
* @param sub Server subscription object.
* @param p_tdata Pointer to receive request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_current_notify( pjsip_evsub *sub,
pjsip_tx_data **p_tdata );
/**
* Send request message that was previously created with initiate(), notify(),
* or current_notify(). Application may also send request created with other
* functions, e.g. authentication. But the request MUST be either request
* that creates/refresh subscription or NOTIFY request.
*
*
* @param sub The event subscription object.
* @param tdata Request message to be send.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsip_xfer_send_request( pjsip_evsub *sub,
pjsip_tx_data *tdata);
PJ_END_DECL
#endif /* __PJSIP_XFER_H__ */

4
pjsip/include/pjsip/sip_dialog.h
View File

@ -41,6 +41,7 @@ PJ_BEGIN_DECL
typedef struct pjsip_dlg_party
{
pjsip_fromto_hdr *info; /**< From/To header, inc tag. */
pj_str_t info_str; /**< String rep of info header. */
pj_uint32_t tag_hval; /**< Hashed value of the tag. */
pjsip_contact_hdr *contact; /**< Contact header. */
pj_int32_t first_cseq;/**< First CSeq seen. */
@ -76,8 +77,9 @@ struct pjsip_dialog
void *dlg_set;
/* Dialog's session properties. */
enum pjsip_dialog_state state; /**< Dialog state. */
pjsip_dialog_state state; /**< Dialog state. */
pjsip_uri *target; /**< Current target. */
pjsip_hdr inv_hdr; /**< Headers from hparam in dest URL */
pjsip_dlg_party local; /**< Local party info. */
pjsip_dlg_party remote; /**< Remote party info. */
pjsip_role_e role; /**< Initial role. */

16
pjsip/include/pjsip/sip_errno.h
View File

@ -171,6 +171,11 @@ PJ_BEGIN_DECL
* Missing message body.
*/
#define PJSIP_EMISSINGBODY (PJSIP_ERRNO_START_PJSIP + 54) /* 171054 */
/**
* @hideinitializer
* Invalid/unexpected method.
*/
#define PJSIP_EINVALIDMETHOD (PJSIP_ERRNO_START_PJSIP + 55) /* 171055 */
/************************************************************
@ -347,6 +352,17 @@ PJ_BEGIN_DECL
* Missing From/To tag.
*/
#define PJSIP_EMISSINGTAG (PJSIP_ERRNO_START_PJSIP+120) /* 171120 */
/**
* @hideinitializer
* Expecting REFER method
*/
#define PJSIP_ENOTREFER (PJSIP_ERRNO_START_PJSIP+121) /* 171121 */
/**
* @hideinitializer
* Not associated with REFER subscription
*/
#define PJSIP_ENOREFERSESSION (PJSIP_ERRNO_START_PJSIP+122) /* 171122 */

16
pjsip/include/pjsip/sip_msg.h
View File

@ -583,6 +583,22 @@ struct pjsip_msg_body
PJ_DECL(int) pjsip_print_text_body( pjsip_msg_body *msg_body,
char *buf, pj_size_t size);
/**
* General purpose function to clone textual data in a SIP body. Attach this
* function as "clone_data" member of the SIP body only if the data type
* is a text (i.e. C string, not pj_str_t), and the length indicates the
* length of the text.
*
* @param pool Pool used to clone the data.
* @param data Textual data.
* @param len The length of the string.
*
* @return New text duplicated from the original text.
*/
PJ_DECL(void*) pjsip_clone_text_data( pj_pool_t *pool, const void *data,
unsigned len);
/**
* Clone the message body in src_body to the dst_body. This will duplicate
* the contents of the message body using the \a clone_data member of the

1
pjsip/include/pjsip_ua.h
View File

@ -21,6 +21,7 @@
#include <pjsip-ua/sip_inv.h>
#include <pjsip-ua/sip_regc.h>
#include <pjsip-ua/sip_xfer.h>
#endif /* __PJSIP_UA_H__ */

79
pjsip/src/pjsip-simple/errno.c
View File

@ -17,4 +17,83 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pjsip-simple/errno.h>
#include <pj/string.h>
/* PJSIP-SIMPLE's own error codes/messages
* MUST KEEP THIS ARRAY SORTED!!
* Message must be limited to 64 chars!
*/
static const struct
{
int code;
const char *msg;
} err_str[] =
{
{ PJSIP_SIMPLE_ENOPKG, "No SIP event package with the specified name" },
{ PJSIP_SIMPLE_EPKGEXISTS, "SIP event package already exist" },
{ PJSIP_SIMPLE_ENOTSUBSCRIBE, "Expecting SUBSCRIBE request" },
{ PJSIP_SIMPLE_ENOPRESENCE, "No presence associated with the subscription" },
{ PJSIP_SIMPLE_ENOPRESENCEINFO, "No presence info in the server subscription" },
{ PJSIP_SIMPLE_EBADCONTENT, "Bad Content-Type for presence" },
{ PJSIP_SIMPLE_EBADPIDF, "Bad PIDF content for presence" },
{ PJSIP_SIMPLE_EBADXPIDF, "Bad XPIDF content for presence" },
};
/*
* pjsipsimple_strerror()
*/
PJ_DEF(pj_str_t) pjsipsimple_strerror( pj_status_t statcode,
char *buf, pj_size_t bufsize )
{
pj_str_t errstr;
if (statcode >= PJSIP_SIMPLE_ERRNO_START &&
statcode < PJSIP_SIMPLE_ERRNO_START + PJ_ERRNO_SPACE_SIZE)
{
/* Find the error in the table.
* Use binary search!
*/
int first = 0;
int n = PJ_ARRAY_SIZE(err_str);
while (n > 0) {
int half = n/2;
int mid = first + half;
if (err_str[mid].code < statcode) {
first = mid+1;
n -= (half+1);
} else if (err_str[mid].code > statcode) {
n = half;
} else {
first = mid;
break;
}
}
if (PJ_ARRAY_SIZE(err_str) && err_str[first].code == statcode) {
pj_str_t msg;
msg.ptr = (char*)err_str[first].msg;
msg.slen = pj_ansi_strlen(err_str[first].msg);
errstr.ptr = buf;
pj_strncpy_with_null(&errstr, &msg, bufsize);
return errstr;
}
}
/* Error not found. */
errstr.ptr = buf;
errstr.slen = pj_snprintf(buf, bufsize,
"Unknown error %d",
statcode);
return errstr;
}

93
pjsip/src/pjsip-simple/evsub.c
View File

@ -197,6 +197,7 @@ struct pjsip_evsub
pjsip_endpoint *endpt; /**< Endpoint instance. */
pjsip_dialog *dlg; /**< Underlying dialog. */
struct evpkg *pkg; /**< The event package. */
unsigned option; /**< Options. */
pjsip_evsub_user user; /**< Callback. */
pjsip_role_e role; /**< UAC=subscriber, UAS=notifier */
pjsip_evsub_state state; /**< Subscription state. */
@ -235,6 +236,7 @@ static const pj_str_t STR_ACTIVE = { "active", 6 };
static const pj_str_t STR_PENDING = { "pending", 7 };
static const pj_str_t STR_TIMEOUT = { "timeout", 7};
/*
* On unload module.
*/
@ -246,6 +248,12 @@ static pj_status_t mod_evsub_unload(void)
return PJ_SUCCESS;
}
/* Proto for pjsipsimple_strerror().
* Defined in errno.c
*/
PJ_DECL(pj_str_t) pjsipsimple_strerror( pj_status_t statcode,
char *buf, pj_size_t bufsize );
/*
* Init and register module.
*/
@ -257,6 +265,9 @@ PJ_DEF(pj_status_t) pjsip_evsub_init_module(pjsip_endpoint *endpt)
{ "NOTIFY", 6}
};
pj_register_strerror(PJSIP_SIMPLE_ERRNO_START, PJ_ERRNO_SPACE_SIZE,
&pjsipsimple_strerror);
PJ_ASSERT_RETURN(endpt != NULL, PJ_EINVAL);
PJ_ASSERT_RETURN(mod_evsub.mod.id == -1, PJ_EINVALIDOP);
@ -618,6 +629,7 @@ static pj_status_t evsub_create( pjsip_dialog *dlg,
pjsip_role_e role,
const pjsip_evsub_user *user_cb,
const pj_str_t *event,
unsigned option,
pjsip_evsub **p_evsub )
{
pjsip_evsub *sub;
@ -640,6 +652,7 @@ static pj_status_t evsub_create( pjsip_dialog *dlg,
sub->dlg = dlg;
sub->pkg = pkg;
sub->role = role;
sub->option = option;
sub->state = PJSIP_EVSUB_STATE_NULL;
sub->state_str = evsub_state_names[sub->state];
sub->expires = pjsip_expires_hdr_create(sub->pool, pkg->pkg_expires);
@ -697,6 +710,7 @@ static pj_status_t evsub_create( pjsip_dialog *dlg,
PJ_DEF(pj_status_t) pjsip_evsub_create_uac( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
const pj_str_t *event,
unsigned option,
pjsip_evsub **p_evsub)
{
pjsip_evsub *sub;
@ -705,12 +719,16 @@ PJ_DEF(pj_status_t) pjsip_evsub_create_uac( pjsip_dialog *dlg,
PJ_ASSERT_RETURN(dlg && event && p_evsub, PJ_EINVAL);
pjsip_dlg_inc_lock(dlg);
status = evsub_create(dlg, PJSIP_UAC_ROLE, user_cb, event, &sub);
status = evsub_create(dlg, PJSIP_UAC_ROLE, user_cb, event, option, &sub);
if (status != PJ_SUCCESS)
goto on_return;
/* Add unique Id to Event header */
pj_create_unique_string(sub->pool, &sub->event->id_param);
/* Add unique Id to Event header, only when PJSIP_EVSUB_NO_EVENT_ID
* is not specified.
*/
if ((option & PJSIP_EVSUB_NO_EVENT_ID) == 0) {
pj_create_unique_string(sub->pool, &sub->event->id_param);
}
/* Increment dlg session. */
pjsip_dlg_inc_session(sub->dlg, &mod_evsub.mod);
@ -730,6 +748,7 @@ on_return:
PJ_DEF(pj_status_t) pjsip_evsub_create_uas( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_rx_data *rdata,
unsigned option,
pjsip_evsub **p_evsub)
{
pjsip_evsub *sub;
@ -757,8 +776,9 @@ PJ_DEF(pj_status_t) pjsip_evsub_create_uas( pjsip_dialog *dlg,
/* Package MUST implement on_rx_refresh */
PJ_ASSERT_RETURN(user_cb->on_rx_refresh, PJ_EINVALIDOP);
/* Request MUST have "Event" header: */
/* Request MUST have "Event" header. We need the Event header to get
* the package name (don't want to add more arguments in the function).
*/
event_hdr = (pjsip_event_hdr*)
pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &STR_EVENT, NULL);
if (event_hdr == NULL) {
@ -772,7 +792,7 @@ PJ_DEF(pj_status_t) pjsip_evsub_create_uas( pjsip_dialog *dlg,
/* Create the session: */
status = evsub_create(dlg, PJSIP_UAS_ROLE, user_cb,
&event_hdr->event_type, &sub);
&event_hdr->event_type, option, &sub);
if (status != PJ_SUCCESS)
goto on_return;
@ -1147,6 +1167,7 @@ static pjsip_evsub *on_new_transaction( pjsip_transaction *tsx,
return NULL;
}
switch (event->body.tsx_state.type) {
case PJSIP_EVENT_RX_MSG:
msg = event->body.tsx_state.src.rdata->msg_info.msg;
@ -1163,7 +1184,11 @@ static pjsip_evsub *on_new_transaction( pjsip_transaction *tsx,
}
if (!msg) {
pj_assert(!"First transaction event is not TX or RX!");
//Note:
// this transaction can be other transaction in the dialog.
// The assertion below probably only valid for dialog that
// only has one event subscription usage.
//pj_assert(!"First transaction event is not TX or RX!");
return NULL;
}
@ -1187,12 +1212,43 @@ static pjsip_evsub *on_new_transaction( pjsip_transaction *tsx,
while (dlgsub != dlgsub_head) {
/* Match event type and Id */
if (pj_strcmp(&dlgsub->sub->event->id_param, &event_hdr->id_param)==0 &&
pj_stricmp(&dlgsub->sub->event->event_type, &event_hdr->event_type)==0)
if (pj_stricmp(&dlgsub->sub->event->event_type,
&event_hdr->event_type)==0)
{
break;
/* Event type matched.
* Check if event ID matched too.
*/
if (pj_strcmp(&dlgsub->sub->event->id_param,
&event_hdr->id_param)==0)
{
break;
}
/*
* Otherwise if it is an UAC subscription, AND
* PJSIP_EVSUB_NO_EVENT_ID flag is set, AND
* the session's event id is NULL, AND
* the incoming request is NOTIFY with event ID, then
* we consider it as a match, and update the
* session's event id.
*/
else if (dlgsub->sub->role == PJSIP_ROLE_UAC &&
(dlgsub->sub->option & PJSIP_EVSUB_NO_EVENT_ID)!=0 &&
dlgsub->sub->event->id_param.slen==0 &&
!pjsip_method_cmp(&tsx->method, &pjsip_notify_method))
{
/* Update session's event id. */
pj_strdup(dlgsub->sub->pool,
&dlgsub->sub->event->id_param,
&event_hdr->id_param);
break;
}
}
dlgsub = dlgsub->next;
}
@ -1200,6 +1256,8 @@ static pjsip_evsub *on_new_transaction( pjsip_transaction *tsx,
/* This could be incoming request to create new subscription */
PJ_LOG(4,(THIS_FILE,
"Subscription not found for %.*s, event=%.*s;id=%.*s",
(int)tsx->method.name.slen,
tsx->method.name.ptr,
(int)event_hdr->event_type.slen,
event_hdr->event_type.ptr,
(int)event_hdr->id_param.slen,
@ -1737,7 +1795,18 @@ static void on_tsx_state_uas( pjsip_evsub *sub, pjsip_transaction *tsx,
/* Can't authenticate. Terminate session (?) */
set_state(sub, PJSIP_EVSUB_STATE_TERMINATED, NULL, NULL);
}
}
}
/*
* Terminate event usage if we receive 481, 408, and 7 class
* responses.
*/
if (sub->state != PJSIP_EVSUB_STATE_TERMINATED &&
(tsx->status_code==481 || tsx->status_code==408 ||
tsx->status_code/100 == 7))
{
set_state(sub, PJSIP_EVSUB_STATE_TERMINATED, NULL, event);
}
} else {

5
pjsip/src/pjsip-simple/presence.c
View File

@ -191,13 +191,14 @@ PJ_DEF(pj_status_t) pjsip_pres_create_uac( pjsip_dialog *dlg,
pjsip_dlg_inc_lock(dlg);
/* Create event subscription */
status = pjsip_evsub_create_uac( dlg, &pres_user, &STR_PRESENCE, &sub);
status = pjsip_evsub_create_uac( dlg, &pres_user, &STR_PRESENCE, 0, &sub);
if (status != PJ_SUCCESS)
goto on_return;
/* Create presence */
pres = pj_pool_zalloc(dlg->pool, sizeof(pjsip_pres));
pres->dlg = dlg;
pres->sub = sub;
if (user_cb)
pj_memcpy(&pres->user_cb, user_cb, sizeof(pjsip_evsub_user));
@ -297,7 +298,7 @@ PJ_DEF(pj_status_t) pjsip_pres_create_uas( pjsip_dialog *dlg,
/* Create server subscription */
status = pjsip_evsub_create_uas( dlg, &pres_user, rdata, &sub);
status = pjsip_evsub_create_uas( dlg, &pres_user, rdata, 0, &sub);
if (status != PJ_SUCCESS)
goto on_return;

400
pjsip/src/pjsip-ua/sip_inv.c
View File

@ -200,10 +200,7 @@ static pj_bool_t mod_inv_on_rx_request(pjsip_rx_data *rdata)
/* On receipt ACK request, when state is CONNECTING,
* move state to CONFIRMED.
*/
if (method->id == PJSIP_ACK_METHOD && inv &&
inv->state != PJSIP_INV_STATE_CONFIRMED)
{
pjsip_event event;
if (method->id == PJSIP_ACK_METHOD && inv) {
/* Terminate INVITE transaction, if it's still present. */
if (inv->invite_tsx &&
@ -214,8 +211,12 @@ static pj_bool_t mod_inv_on_rx_request(pjsip_rx_data *rdata)
inv->invite_tsx = NULL;
}
PJSIP_EVENT_INIT_RX_MSG(event, rdata);
inv_set_state(inv, PJSIP_INV_STATE_CONFIRMED, &event);
if (inv->state != PJSIP_INV_STATE_CONFIRMED) {
pjsip_event event;
PJSIP_EVENT_INIT_RX_MSG(event, rdata);
inv_set_state(inv, PJSIP_INV_STATE_CONFIRMED, &event);
}
}
return PJ_FALSE;
@ -250,7 +251,9 @@ static pj_bool_t mod_inv_on_rx_response(pjsip_rx_data *rdata)
* If it is, we need to send ACK.
*/
if (msg->type == PJSIP_RESPONSE_MSG && msg->line.status.code/100==2 &&
rdata->msg_info.cseq->method.id == PJSIP_INVITE_METHOD) {
rdata->msg_info.cseq->method.id == PJSIP_INVITE_METHOD &&
inv->invite_tsx == NULL)
{
inv_send_ack(inv, rdata);
return PJ_TRUE;
@ -865,13 +868,16 @@ PJ_DEF(pj_status_t) pjsip_inv_invite( pjsip_inv_session *inv,
{
pjsip_tx_data *tdata;
const pjsip_hdr *hdr;
pj_bool_t has_sdp;
pj_status_t status;
/* Verify arguments. */
PJ_ASSERT_RETURN(inv && p_tdata, PJ_EINVAL);
/* State MUST be NULL. */
PJ_ASSERT_RETURN(inv->state == PJSIP_INV_STATE_NULL, PJ_EINVAL);
/* State MUST be NULL or CONFIRMED. */
PJ_ASSERT_RETURN(inv->state == PJSIP_INV_STATE_NULL ||
inv->state == PJSIP_INV_STATE_CONFIRMED,
PJ_EINVALIDOP);
/* Create the INVITE request. */
status = pjsip_dlg_create_request(inv->dlg, &pjsip_invite_method, -1,
@ -879,10 +885,37 @@ PJ_DEF(pj_status_t) pjsip_inv_invite( pjsip_inv_session *inv,
if (status != PJ_SUCCESS)
return status;
/* If this is the first INVITE, then copy the headers from inv_hdr.
* These are the headers parsed from the request URI when the
* dialog was created.
*/
if (inv->state == PJSIP_INV_STATE_NULL) {
hdr = inv->dlg->inv_hdr.next;
while (hdr != &inv->dlg->inv_hdr) {
pjsip_msg_add_hdr(tdata->msg,
pjsip_hdr_shallow_clone(tdata->pool, hdr));
hdr = hdr->next;
}
}
/* See if we have SDP to send. */
if (inv->neg) {
pjmedia_sdp_neg_state neg_state;
neg_state = pjmedia_sdp_neg_get_state(inv->neg);
has_sdp = (neg_state == PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER ||
(neg_state == PJMEDIA_SDP_NEG_STATE_WAIT_NEGO &&
pjmedia_sdp_neg_has_local_answer(inv->neg)));
} else {
has_sdp = PJ_FALSE;
}
/* Add SDP, if any. */
if (inv->neg &&
pjmedia_sdp_neg_get_state(inv->neg)==PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER)
{
if (has_sdp) {
const pjmedia_sdp_session *offer;
status = pjmedia_sdp_neg_get_neg_local(inv->neg, &offer);
@ -940,9 +973,9 @@ static pj_status_t inv_negotiate_sdp( pjsip_inv_session *inv )
/*
* Check in incoming message for SDP offer/answer.
*/
static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pjsip_transaction *tsx,
pjsip_rx_data *rdata)
static pj_status_t inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pjsip_transaction *tsx,
pjsip_rx_data *rdata)
{
struct tsx_inv_data *tsx_inv_data;
static const pj_str_t str_application = { "application", 11 };
@ -963,21 +996,21 @@ static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
*/
if (tsx_inv_data->sdp_done)
return;
return PJ_SUCCESS;
/* Check if SDP is present in the message. */
msg = rdata->msg_info.msg;
if (msg->body == NULL) {
/* Message doesn't have body. */
return;
return PJ_SUCCESS;
}
if (pj_stricmp(&msg->body->content_type.type, &str_application) ||
pj_stricmp(&msg->body->content_type.subtype, &str_sdp))
{
/* Message body is not "application/sdp" */
return;
return PJMEDIA_SDP_EINSDP;
}
/* Parse the SDP body. */
@ -989,7 +1022,7 @@ static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE, "Error parsing SDP in %s: %s",
pjsip_rx_data_get_info(rdata), errmsg));
return;
return PJMEDIA_SDP_EINSDP;
}
/* The SDP can be an offer or answer, depending on negotiator's state */
@ -1015,13 +1048,16 @@ static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE, "Error processing SDP offer in %s: %s",
pjsip_rx_data_get_info(rdata), errmsg));
return;
return PJMEDIA_SDP_EINSDP;
}
/* Inform application about remote offer. */
if (mod_inv.cb.on_rx_offer)
(*mod_inv.cb.on_rx_offer)(inv);
if (mod_inv.cb.on_rx_offer) {
(*mod_inv.cb.on_rx_offer)(inv, sdp);
}
} else if (pjmedia_sdp_neg_get_state(inv->neg) ==
PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER)
@ -1041,7 +1077,7 @@ static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(4,(THIS_FILE, "Error processing SDP answer in %s: %s",
pjsip_rx_data_get_info(rdata), errmsg));
return;
return PJMEDIA_SDP_EINSDP;
}
/* Negotiate SDP */
@ -1059,12 +1095,68 @@ static void inv_check_sdp_in_incoming_msg( pjsip_inv_session *inv,
pjmedia_sdp_neg_state_str(pjmedia_sdp_neg_get_state(inv->neg))));
}
return PJ_SUCCESS;
}
/*
* Process INVITE answer, for both initial and subsequent re-INVITE
*/
static pj_status_t process_answer( pjsip_inv_session *inv,
int st_code,
pjsip_tx_data *tdata )
{
pj_status_t status;
pjmedia_sdp_session *sdp = NULL;
/* Include SDP for 18x and 2xx response.
* Also if SDP negotiator is ready, start negotiation.
*/
if (st_code/10 == 18 || st_code/10 == 20) {
pjmedia_sdp_neg_state neg_state;
neg_state = inv->neg ? pjmedia_sdp_neg_get_state(inv->neg) :
PJMEDIA_SDP_NEG_STATE_NULL;
if (neg_state == PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER) {
status = pjmedia_sdp_neg_get_neg_local(inv->neg, &sdp);
} else if (neg_state == PJMEDIA_SDP_NEG_STATE_WAIT_NEGO &&
pjmedia_sdp_neg_has_local_answer(inv->neg) )
{
status = inv_negotiate_sdp(inv);
if (status != PJ_SUCCESS)
return status;
status = pjmedia_sdp_neg_get_active_local(inv->neg, &sdp);
}
}
/* Include SDP when it's available.
* Subsequent response will include this SDP.
*/
if (sdp) {
tdata->msg->body = create_sdp_body(tdata->pool, sdp);
}
/* Remove message body if this is a non-2xx final response */
if (st_code >= 300)
tdata->msg->body = NULL;
return PJ_SUCCESS;
}
/*
* Answer initial INVITE.
* Answer initial INVITE
* Re-INVITE will be answered automatically, and will not use this function.
*/
PJ_DEF(pj_status_t) pjsip_inv_answer( pjsip_inv_session *inv,
int st_code,
@ -1087,7 +1179,7 @@ PJ_DEF(pj_status_t) pjsip_inv_answer( pjsip_inv_session *inv,
/* If local_sdp is specified, then we MUST NOT have answered the
* offer before.
*/
if (local_sdp) {
if (local_sdp && (st_code/100==1 || st_code/100==2)) {
if (inv->neg == NULL) {
status = pjmedia_sdp_neg_create_w_local_offer(inv->pool, local_sdp,
@ -1108,42 +1200,20 @@ PJ_DEF(pj_status_t) pjsip_inv_answer( pjsip_inv_session *inv,
return status;
}
last_res = inv->invite_tsx->last_tx;
/* Modify last response. */
last_res = inv->invite_tsx->last_tx;
status = pjsip_dlg_modify_response(inv->dlg, last_res, st_code, st_text);
if (status != PJ_SUCCESS)
return status;
/* Include SDP for 18x and 2xx response.
* Also if SDP negotiator is ready, start negotiation.
*/
if (st_code/10 == 18 || st_code/10 == 20) {
pjmedia_sdp_neg_state neg_state;
neg_state = inv->neg ? pjmedia_sdp_neg_get_state(inv->neg) :
PJMEDIA_SDP_NEG_STATE_NULL;
if (neg_state == PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER ||
neg_state == PJMEDIA_SDP_NEG_STATE_WAIT_NEGO)
{
const pjmedia_sdp_session *local;
status = pjmedia_sdp_neg_get_neg_local(inv->neg, &local);
if (status == PJ_SUCCESS)
last_res->msg->body = create_sdp_body(last_res->pool, local);
}
/* Start negotiation, if ready. */
if (neg_state == PJMEDIA_SDP_NEG_STATE_WAIT_NEGO) {
status = inv_negotiate_sdp(inv);
if (status != PJ_SUCCESS) {
pjsip_tx_data_dec_ref(last_res);
return status;
}
}
}
/* Process SDP in answer */
status = process_answer(inv, st_code, last_res);
if (status != PJ_SUCCESS)
return status;
*p_tdata = last_res;
@ -1152,6 +1222,24 @@ PJ_DEF(pj_status_t) pjsip_inv_answer( pjsip_inv_session *inv,
}
/*
* Set SDP answer.
*/
PJ_DEF(pj_status_t) pjsip_inv_set_sdp_answer( pjsip_inv_session *inv,
const pjmedia_sdp_session *sdp )
{
pj_status_t status;
PJ_ASSERT_RETURN(inv && sdp, PJ_EINVAL);
pjsip_dlg_inc_lock(inv->dlg);
status = pjmedia_sdp_neg_set_local_answer( inv->pool, inv->neg, sdp);
pjsip_dlg_dec_lock(inv->dlg);
return status;
}
/*
* End session.
*/
@ -1205,8 +1293,9 @@ PJ_DEF(pj_status_t) pjsip_inv_end_session( pjsip_inv_session *inv,
tdata = inv->invite_tsx->last_tx;
PJ_ASSERT_RETURN(tdata != NULL, PJ_EINVALIDOP);
status = pjsip_dlg_modify_response(inv->dlg, tdata, st_code,
st_text);
//status = pjsip_dlg_modify_response(inv->dlg, tdata, st_code,
// st_text);
status = pjsip_inv_answer(inv, st_code, st_text, NULL, &tdata);
}
break;
@ -1247,13 +1336,82 @@ PJ_DEF(pj_status_t) pjsip_inv_reinvite( pjsip_inv_session *inv,
const pjmedia_sdp_session *new_offer,
pjsip_tx_data **p_tdata )
{
PJ_UNUSED_ARG(inv);
PJ_UNUSED_ARG(new_contact);
PJ_UNUSED_ARG(new_offer);
PJ_UNUSED_ARG(p_tdata);
pj_status_t status;
pjsip_contact_hdr *contact_hdr = NULL;
PJ_TODO(CREATE_REINVITE_REQUEST);
return PJ_ENOTSUP;
/* Check arguments. */
PJ_ASSERT_RETURN(inv && p_tdata, PJ_EINVAL);
/* Must NOT have a pending INVITE transaction */
PJ_ASSERT_RETURN(inv->invite_tsx==NULL, PJ_EINVALIDOP);
pjsip_dlg_inc_lock(inv->dlg);
if (new_contact) {
pj_str_t tmp;
const pj_str_t STR_CONTACT = { "Contact", 7 };
pj_strdup_with_null(inv->dlg->pool, &tmp, new_contact);
contact_hdr = pjsip_parse_hdr(inv->dlg->pool, &STR_CONTACT,
tmp.ptr, tmp.slen, NULL);
if (!contact_hdr) {
status = PJSIP_EINVALIDURI;
goto on_return;
}
}
if (new_offer) {
if (!inv->neg) {
status = pjmedia_sdp_neg_create_w_local_offer(inv->pool, new_offer,
&inv->neg);
if (status != PJ_SUCCESS)
goto on_return;
} else switch (pjmedia_sdp_neg_get_state(inv->neg)) {
case PJMEDIA_SDP_NEG_STATE_NULL:
pj_assert(!"Unexpected SDP neg state NULL");
status = PJ_EBUG;
goto on_return;
case PJMEDIA_SDP_NEG_STATE_LOCAL_OFFER:
PJ_LOG(4,(inv->obj_name,
"pjsip_inv_reinvite: already have an offer, new "
"offer is ignored"));
break;
case PJMEDIA_SDP_NEG_STATE_REMOTE_OFFER:
status = pjmedia_sdp_neg_set_local_answer(inv->pool, inv->neg,
new_offer);
if (status != PJ_SUCCESS)
goto on_return;
break;
case PJMEDIA_SDP_NEG_STATE_WAIT_NEGO:
PJ_LOG(4,(inv->obj_name,
"pjsip_inv_reinvite: SDP in WAIT_NEGO state, new "
"offer is ignored"));
break;
case PJMEDIA_SDP_NEG_STATE_DONE:
status = pjmedia_sdp_neg_modify_local_offer(inv->pool,inv->neg,
new_offer);
if (status != PJ_SUCCESS)
goto on_return;
break;
}
}
if (contact_hdr)
inv->dlg->local.contact = contact_hdr;
status = pjsip_inv_invite(inv, p_tdata);
on_return:
pjsip_dlg_dec_lock(inv->dlg);
return status;
}
/*
@ -1908,6 +2066,124 @@ static void inv_on_state_confirmed( pjsip_inv_session *inv, pjsip_event *e)
inv_respond_incoming_bye( inv, tsx, e->body.tsx_state.src.rdata, e );
}
else if (tsx->method.id == PJSIP_INVITE_METHOD &&
tsx->role == PJSIP_ROLE_UAS)
{
/*
* Handle incoming re-INVITE
*/
if (tsx->state == PJSIP_TSX_STATE_TRYING) {
pjsip_rx_data *rdata = e->body.tsx_state.src.rdata;
pjsip_tx_data *tdata;
pj_status_t status;
/* Check if we have INVITE pending. */
if (inv->invite_tsx && inv->invite_tsx!=tsx) {
/* Can not receive re-INVITE while another one is pending. */
status = pjsip_dlg_create_response( inv->dlg, rdata, 500, NULL,
&tdata);
if (status != PJ_SUCCESS)
return;
status = pjsip_dlg_send_response( inv->dlg, tsx, tdata);
return;
}
/* Save the invite transaction. */
inv->invite_tsx = tsx;
/* Process SDP in incoming message. */
status = inv_check_sdp_in_incoming_msg(inv, tsx, rdata);
if (status != PJ_SUCCESS) {
/* Not Acceptable */
const pjsip_hdr *accept;
status = pjsip_dlg_create_response(inv->dlg, rdata,
488, NULL, &tdata);
if (status != PJ_SUCCESS)
return;
accept = pjsip_endpt_get_capability(dlg->endpt, PJSIP_H_ACCEPT,
NULL);
if (accept) {
pjsip_msg_add_hdr(tdata->msg,
pjsip_hdr_clone(tdata->pool, accept));
}
status = pjsip_dlg_send_response(dlg, tsx, tdata);
return;
}
/* Create 2xx ANSWER */
status = pjsip_dlg_create_response(dlg, rdata, 200, NULL, &tdata);
if (status != PJ_SUCCESS)
return;
/* Process SDP in the answer */
status = process_answer(inv, 200, tdata);
if (status != PJ_SUCCESS)
return;
status = pjsip_inv_send_msg(inv, tdata, NULL);
}
}
else if (tsx->method.id == PJSIP_INVITE_METHOD &&
tsx->role == PJSIP_ROLE_UAC)
{
/*
* Handle outgoing re-INVITE
*/
if (tsx->state == PJSIP_TSX_STATE_TERMINATED &&
tsx->status_code/100 == 2)
{
/* Re-INVITE was accepted. */
/* Process SDP */
inv_check_sdp_in_incoming_msg(inv, tsx,
e->body.tsx_state.src.rdata);
/* Send ACK */
inv_send_ack(inv, e->body.tsx_state.src.rdata);
} else if (tsx->state == PJSIP_TSX_STATE_COMPLETED &&
(tsx->status_code==401 || tsx->status_code==407))
{
pjsip_tx_data *tdata;
pj_status_t status;
/* Handle authentication challenge. */
status = pjsip_auth_clt_reinit_req( &dlg->auth_sess,
e->body.tsx_state.src.rdata,
tsx->last_tx,
&tdata);
if (status != PJ_SUCCESS)
return;
/* Send re-INVITE */
status = pjsip_inv_send_msg( inv, tdata, NULL);
} else if (tsx->status_code==PJSIP_SC_CALL_TSX_DOES_NOT_EXIST ||
tsx->status_code==PJSIP_SC_REQUEST_TIMEOUT ||
tsx->status_code >= 700)
{
/*
* Handle responses that terminates dialog.
*/
inv_set_state(inv, PJSIP_INV_STATE_DISCONNECTED, e);
}
}
}
/*

614
pjsip/src/pjsip-ua/sip_xfer.c Normal file
View File

@ -0,0 +1,614 @@
/* $Id$ */
/*
* Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
*
* This program 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.
*
* This program 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
*/
#include <pjsip-ua/sip_xfer.h>
#include <pjsip-simple/evsub_msg.h>
#include <pjsip/sip_dialog.h>
#include <pjsip/sip_errno.h>
#include <pjsip/sip_endpoint.h>
#include <pjsip/sip_module.h>
#include <pjsip/sip_transport.h>
#include <pj/assert.h>
#include <pj/pool.h>
#include <pj/string.h>
/*
* Refer module (mod-refer)
*/
static struct pjsip_module mod_xfer =
{
NULL, NULL, /* prev, next. */
{ "mod-refer", 9 }, /* Name. */
-1, /* Id */
PJSIP_MOD_PRIORITY_APPLICATION-1, /* Priority */
NULL, /* User data. */
NULL, /* load() */
NULL, /* start() */
NULL, /* stop() */
NULL, /* unload() */
NULL, /* on_rx_request() */
NULL, /* on_rx_response() */
NULL, /* on_tx_request. */
NULL, /* on_tx_response() */
NULL, /* on_tsx_state() */
};
/* Declare PJSIP_REFER_METHOD, so that if somebody declares this in
* sip_msg.h we can catch the error here.
*/
enum
{
PJSIP_REFER_METHOD = PJSIP_OTHER_METHOD
};
const pjsip_method pjsip_refer_method = {
PJSIP_REFER_METHOD,
{ "REFER", 5}
};
/*
* String constants
*/
const pj_str_t STR_REFER = { "refer", 5 };
const pj_str_t STR_MESSAGE = { "message", 7 };
const pj_str_t STR_SIPFRAG = { "sipfrag", 7 };
const pj_str_t STR_SIPFRAG_VERSION = {";version=2.0", 12 };
/*
* Transfer struct.
*/
struct pjsip_xfer
{
pjsip_evsub *sub; /**< Event subscribtion record. */
pjsip_dialog *dlg; /**< The dialog. */
pjsip_evsub_user user_cb; /**< The user callback. */
pj_str_t refer_to_uri; /**< The full Refer-To URI. */
int last_st_code; /**< st_code sent in last NOTIFY */
pj_str_t last_st_text; /**< st_text sent in last NOTIFY */
};
typedef struct pjsip_xfer pjsip_xfer;
/*
* Forward decl for evsub callback.
*/
static void xfer_on_evsub_state( pjsip_evsub *sub, pjsip_event *event);
static void xfer_on_evsub_tsx_state( pjsip_evsub *sub, pjsip_transaction *tsx,
pjsip_event *event);
static void xfer_on_evsub_rx_refresh( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int *p_st_code,
pj_str_t **p_st_text,
pjsip_hdr *res_hdr,
pjsip_msg_body **p_body);
static void xfer_on_evsub_rx_notify( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int *p_st_code,
pj_str_t **p_st_text,
pjsip_hdr *res_hdr,
pjsip_msg_body **p_body);
static void xfer_on_evsub_client_refresh(pjsip_evsub *sub);
static void xfer_on_evsub_server_timeout(pjsip_evsub *sub);
/*
* Event subscription callback for xference.
*/
static pjsip_evsub_user xfer_user =
{
&xfer_on_evsub_state,
&xfer_on_evsub_tsx_state,
&xfer_on_evsub_rx_refresh,
&xfer_on_evsub_rx_notify,
&xfer_on_evsub_client_refresh,
&xfer_on_evsub_server_timeout,
};
/*
* Initialize the REFER subsystem.
*/
PJ_DEF(pj_status_t) pjsip_xfer_init_module(pjsip_endpoint *endpt)
{
const pj_str_t accept = { "message/sipfrag;version=2.0", 27 };
pj_status_t status;
PJ_ASSERT_RETURN(endpt != NULL, PJ_EINVAL);
PJ_ASSERT_RETURN(mod_xfer.id == -1, PJ_EINVALIDOP);
status = pjsip_endpt_register_module(endpt, &mod_xfer);
if (status != PJ_SUCCESS)
return status;
status = pjsip_endpt_add_capability( endpt, &mod_xfer, PJSIP_H_ALLOW,
NULL, 1, &pjsip_refer_method.name);
if (status != PJ_SUCCESS)
return status;
status = pjsip_evsub_register_pkg( &mod_xfer, &STR_REFER, 300, 1, &accept);
if (status != PJ_SUCCESS)
return status;
return PJ_SUCCESS;
}
/*
* Create transferer (sender of REFER request).
*
*/
PJ_DEF(pj_status_t) pjsip_xfer_create_uac( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_evsub **p_evsub )
{
pj_status_t status;
pjsip_xfer *xfer;
pjsip_evsub *sub;
PJ_ASSERT_RETURN(dlg && p_evsub, PJ_EINVAL);
pjsip_dlg_inc_lock(dlg);
/* Create event subscription */
status = pjsip_evsub_create_uac( dlg, &xfer_user, &STR_REFER,
PJSIP_EVSUB_NO_EVENT_ID, &sub);
if (status != PJ_SUCCESS)
goto on_return;
/* Create xfer session */
xfer = pj_pool_zalloc(dlg->pool, sizeof(pjsip_xfer));
xfer->dlg = dlg;
xfer->sub = sub;
if (user_cb)
pj_memcpy(&xfer->user_cb, user_cb, sizeof(pjsip_evsub_user));
/* Attach to evsub */
pjsip_evsub_set_mod_data(sub, mod_xfer.id, xfer);
*p_evsub = sub;
on_return:
pjsip_dlg_dec_lock(dlg);
return status;
}
/*
* Create transferee (receiver of REFER request).
*
*/
PJ_DEF(pj_status_t) pjsip_xfer_create_uas( pjsip_dialog *dlg,
const pjsip_evsub_user *user_cb,
pjsip_rx_data *rdata,
pjsip_evsub **p_evsub )
{
pjsip_evsub *sub;
pjsip_xfer *xfer;
const pj_str_t STR_EVENT = {"Event", 5 };
pjsip_event_hdr *event_hdr;
pj_status_t status;
/* Check arguments */
PJ_ASSERT_RETURN(dlg && rdata && p_evsub, PJ_EINVAL);
/* Must be request message */
PJ_ASSERT_RETURN(rdata->msg_info.msg->type == PJSIP_REQUEST_MSG,
PJSIP_ENOTREQUESTMSG);
/* Check that request is REFER */
PJ_ASSERT_RETURN(pjsip_method_cmp(&rdata->msg_info.msg->line.req.method,
&pjsip_refer_method)==0,
PJSIP_ENOTREFER);
/* Lock dialog */
pjsip_dlg_inc_lock(dlg);
/* The evsub framework expects an Event header in the request,
* while a REFER request conveniently doesn't have one (pun intended!).
* So create a dummy Event header.
*/
if (pjsip_msg_find_hdr_by_name(rdata->msg_info.msg,
&STR_EVENT, NULL)==NULL)
{
event_hdr = pjsip_event_hdr_create(rdata->tp_info.pool);
event_hdr->event_type = STR_REFER;
pjsip_msg_add_hdr(rdata->msg_info.msg, (pjsip_hdr*)event_hdr);
}
/* Create server subscription */
status = pjsip_evsub_create_uas( dlg, &xfer_user, rdata,
PJSIP_EVSUB_NO_EVENT_ID, &sub);
if (status != PJ_SUCCESS)
goto on_return;
/* Create server xfer subscription */
xfer = pj_pool_zalloc(dlg->pool, sizeof(pjsip_xfer));
xfer->dlg = dlg;
xfer->sub = sub;
if (user_cb)
pj_memcpy(&xfer->user_cb, user_cb, sizeof(pjsip_evsub_user));
/* Attach to evsub */
pjsip_evsub_set_mod_data(sub, mod_xfer.id, xfer);
/* Done: */
*p_evsub = sub;
on_return:
pjsip_dlg_dec_lock(dlg);
return status;
}
/*
* Call this function to create request to initiate REFER subscription.
*
*/
PJ_DEF(pj_status_t) pjsip_xfer_initiate( pjsip_evsub *sub,
const pj_str_t *refer_to_uri,
pjsip_tx_data **p_tdata)
{
pjsip_xfer *xfer;
const pj_str_t refer_to = { "Refer-To", 8};
pjsip_tx_data *tdata;
pjsip_generic_string_hdr *hdr;
pj_status_t status;
/* sub and p_tdata argument must be valid. */
PJ_ASSERT_RETURN(sub && p_tdata, PJ_EINVAL);
/* Get the xfer object. */
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_RETURN(xfer != NULL, PJSIP_ENOREFERSESSION);
/* refer_to_uri argument MAY be NULL for subsequent REFER requests,
* but it MUST be specified in the first REFER.
*/
PJ_ASSERT_RETURN((refer_to_uri || xfer->refer_to_uri.slen), PJ_EINVAL);
/* Lock dialog. */
pjsip_dlg_inc_lock(xfer->dlg);
/* Create basic REFER request */
status = pjsip_evsub_initiate(sub, &pjsip_refer_method, -1,
&tdata);
if (status != PJ_SUCCESS)
goto on_return;
/* Save Refer-To URI. */
if (refer_to_uri == NULL) {
refer_to_uri = &xfer->refer_to_uri;
} else {
pj_strdup(xfer->dlg->pool, &xfer->refer_to_uri, refer_to_uri);
}
/* Create and add Refer-To header. */
hdr = pjsip_generic_string_hdr_create(tdata->pool, &refer_to,
refer_to_uri);
if (!hdr) {
pjsip_tx_data_dec_ref(tdata);
status = PJ_ENOMEM;
goto on_return;
}
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)hdr);
/* Done. */
*p_tdata = tdata;
status = PJ_SUCCESS;
on_return:
pjsip_dlg_dec_lock(xfer->dlg);
return status;
}
/*
* Accept the incoming REFER request by sending 2xx response.
*
*/
PJ_DEF(pj_status_t) pjsip_xfer_accept( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int st_code,
const pjsip_hdr *hdr_list )
{
/*
* Don't need to add custom headers, so just call basic
* evsub response.
*/
return pjsip_evsub_accept( sub, rdata, st_code, hdr_list );
}
/*
* For notifier, create NOTIFY request to subscriber, and set the state
* of the subscription.
*/
PJ_DEF(pj_status_t) pjsip_xfer_notify( pjsip_evsub *sub,
pjsip_evsub_state state,
int xfer_st_code,
const pj_str_t *xfer_st_text,
pjsip_tx_data **p_tdata)
{
pjsip_tx_data *tdata;
pjsip_xfer *xfer;
const pj_str_t reason = { "noresource", 10 };
char *body;
int bodylen;
pjsip_msg_body *msg_body;
pj_status_t status;
/* Check arguments. */
PJ_ASSERT_RETURN(sub, PJ_EINVAL);
/* Get the xfer object. */
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_RETURN(xfer != NULL, PJSIP_ENOREFERSESSION);
/* Lock object. */
pjsip_dlg_inc_lock(xfer->dlg);
/* Create the NOTIFY request.
* Note that reason is only used when state is TERMINATED, and
* the defined termination reason for REFER is "noresource".
*/
status = pjsip_evsub_notify( sub, state, NULL, &reason, &tdata);
if (status != PJ_SUCCESS)
goto on_return;
/* Check status text */
if (xfer_st_text==NULL || xfer_st_text->slen==0)
xfer_st_text = pjsip_get_status_text(xfer_st_code);
/* Save st_code and st_text, for current_notify() */
xfer->last_st_code = xfer_st_code;
pj_strdup(xfer->dlg->pool, &xfer->last_st_text, xfer_st_text);
/* Create sipfrag content. */
body = pj_pool_alloc(tdata->pool, 128);
bodylen = pj_ansi_snprintf(body, 128, "SIP/2.0 %u %.*s",
xfer_st_code,
(int)xfer_st_text->slen,
xfer_st_text->ptr);
PJ_ASSERT_ON_FAIL(bodylen > 0 && bodylen < 128,
{status=PJ_EBUG; pjsip_tx_data_dec_ref(tdata);
goto on_return; });
/* Create SIP message body. */
msg_body = pj_pool_zalloc(tdata->pool, sizeof(pjsip_msg_body));
msg_body->content_type.type = STR_MESSAGE;
msg_body->content_type.subtype = STR_SIPFRAG;
msg_body->content_type.param = STR_SIPFRAG_VERSION;
msg_body->data = body;
msg_body->len = bodylen;
msg_body->print_body = &pjsip_print_text_body;
msg_body->clone_data = &pjsip_clone_text_data;
/* Attach sipfrag body. */
tdata->msg->body = msg_body;
/* Done. */
*p_tdata = tdata;
on_return:
pjsip_dlg_dec_lock(xfer->dlg);
return status;
}
/*
* Send current state and the last sipfrag body.
*/
PJ_DEF(pj_status_t) pjsip_xfer_current_notify( pjsip_evsub *sub,
pjsip_tx_data **p_tdata )
{
pjsip_xfer *xfer;
pj_status_t status;
/* Check arguments. */
PJ_ASSERT_RETURN(sub, PJ_EINVAL);
/* Get the xfer object. */
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_RETURN(xfer != NULL, PJSIP_ENOREFERSESSION);
pjsip_dlg_inc_lock(xfer->dlg);
status = pjsip_xfer_notify(sub, pjsip_evsub_get_state(sub),
xfer->last_st_code, &xfer->last_st_text,
p_tdata);
pjsip_dlg_dec_lock(xfer->dlg);
return status;
}
/*
* Send request message.
*/
PJ_DEF(pj_status_t) pjsip_xfer_send_request( pjsip_evsub *sub,
pjsip_tx_data *tdata)
{
return pjsip_evsub_send_request(sub, tdata);
}
/*
* This callback is called by event subscription when subscription
* state has changed.
*/
static void xfer_on_evsub_state( pjsip_evsub *sub, pjsip_event *event)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_evsub_state)
(*xfer->user_cb.on_evsub_state)(sub, event);
}
/*
* Called when transaction state has changed.
*/
static void xfer_on_evsub_tsx_state( pjsip_evsub *sub, pjsip_transaction *tsx,
pjsip_event *event)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_tsx_state)
(*xfer->user_cb.on_tsx_state)(sub, tsx, event);
}
/*
* Called when REFER is received to refresh subscription.
*/
static void xfer_on_evsub_rx_refresh( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int *p_st_code,
pj_str_t **p_st_text,
pjsip_hdr *res_hdr,
pjsip_msg_body **p_body)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_rx_refresh) {
(*xfer->user_cb.on_rx_refresh)(sub, rdata, p_st_code, p_st_text,
res_hdr, p_body);
} else {
/* Implementors MUST send NOTIFY if it implements on_rx_refresh
* (implementor == "us" from evsub point of view.
*/
pjsip_tx_data *tdata;
pj_status_t status;
if (pjsip_evsub_get_state(sub)==PJSIP_EVSUB_STATE_TERMINATED) {
status = pjsip_xfer_notify( sub, PJSIP_EVSUB_STATE_TERMINATED,
xfer->last_st_code,
&xfer->last_st_text,
&tdata);
} else {
status = pjsip_xfer_current_notify(sub, &tdata);
}
if (status == PJ_SUCCESS)
pjsip_xfer_send_request(sub, tdata);
}
}
/*
* Called when NOTIFY is received.
*/
static void xfer_on_evsub_rx_notify( pjsip_evsub *sub,
pjsip_rx_data *rdata,
int *p_st_code,
pj_str_t **p_st_text,
pjsip_hdr *res_hdr,
pjsip_msg_body **p_body)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_rx_notify)
(*xfer->user_cb.on_rx_notify)(sub, rdata, p_st_code, p_st_text,
res_hdr, p_body);
}
/*
* Called when it's time to send SUBSCRIBE.
*/
static void xfer_on_evsub_client_refresh(pjsip_evsub *sub)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_client_refresh) {
(*xfer->user_cb.on_client_refresh)(sub);
} else {
pj_status_t status;
pjsip_tx_data *tdata;
status = pjsip_xfer_initiate(sub, NULL, &tdata);
if (status == PJ_SUCCESS)
pjsip_xfer_send_request(sub, tdata);
}
}
/*
* Called when no refresh is received after the interval.
*/
static void xfer_on_evsub_server_timeout(pjsip_evsub *sub)
{
pjsip_xfer *xfer;
xfer = pjsip_evsub_get_mod_data(sub, mod_xfer.id);
PJ_ASSERT_ON_FAIL(xfer!=NULL, {return;});
if (xfer->user_cb.on_server_timeout) {
(*xfer->user_cb.on_server_timeout)(sub);
} else {
pj_status_t status;
pjsip_tx_data *tdata;
status = pjsip_xfer_notify(sub, PJSIP_EVSUB_STATE_TERMINATED,
xfer->last_st_code,
&xfer->last_st_text, &tdata);
if (status == PJ_SUCCESS)
pjsip_xfer_send_request(sub, tdata);
}
}

78
pjsip/src/pjsip/sip_dialog.c
View File

@ -78,6 +78,8 @@ static pj_status_t create_dialog( pjsip_user_agent *ua,
dlg->endpt = endpt;
dlg->state = PJSIP_DIALOG_STATE_NULL;
pj_list_init(&dlg->inv_hdr);
status = pj_mutex_create_recursive(pool, "dlg%p", &dlg->mutex);
if (status != PJ_SUCCESS)
goto on_error;
@ -131,10 +133,31 @@ PJ_DEF(pj_status_t) pjsip_dlg_create_uac( pjsip_user_agent *ua,
goto on_error;
}
/* Put any header param in the target URI into INVITE header list. */
if (PJSIP_URI_SCHEME_IS_SIP(dlg->target) ||
PJSIP_URI_SCHEME_IS_SIPS(dlg->target))
{
pjsip_param *param;
pjsip_sip_uri *uri = (pjsip_sip_uri*)pjsip_uri_get_uri(dlg->target);
param = uri->header_param.next;
while (param != &uri->header_param) {
pjsip_generic_string_hdr *req_hdr;
req_hdr = pjsip_generic_string_hdr_create(dlg->pool, &param->name,
&param->value);
pj_list_push_back(&dlg->inv_hdr, req_hdr);
param = param->next;
}
}
/* Init local info. */
dlg->local.info = pjsip_from_hdr_create(dlg->pool);
pj_strdup_with_null(dlg->pool, &tmp, local_uri);
dlg->local.info->uri = pjsip_parse_uri(dlg->pool, tmp.ptr, tmp.slen, 0);
pj_strdup_with_null(dlg->pool, &dlg->local.info_str, local_uri);
dlg->local.info->uri = pjsip_parse_uri(dlg->pool,
dlg->local.info_str.ptr,
dlg->local.info_str.slen, 0);
if (!dlg->local.info->uri) {
status = PJSIP_EINVALIDURI;
goto on_error;
@ -164,8 +187,10 @@ PJ_DEF(pj_status_t) pjsip_dlg_create_uac( pjsip_user_agent *ua,
/* Init remote info. */
dlg->remote.info = pjsip_to_hdr_create(dlg->pool);
pj_strdup_with_null(dlg->pool, &tmp, remote_uri);
dlg->remote.info->uri = pjsip_parse_uri(dlg->pool, tmp.ptr, tmp.slen, 0);
pj_strdup_with_null(dlg->pool, &dlg->remote.info_str, remote_uri);
dlg->remote.info->uri = pjsip_parse_uri(dlg->pool,
dlg->remote.info_str.ptr,
dlg->remote.info_str.slen, 0);
if (!dlg->remote.info->uri) {
status = PJSIP_EINVALIDURI;
goto on_error;
@ -225,6 +250,9 @@ PJ_DEF(pj_status_t) pjsip_dlg_create_uas( pjsip_user_agent *ua,
pjsip_hdr *contact_hdr;
pjsip_rr_hdr *rr;
pjsip_transaction *tsx = NULL;
pj_str_t tmp;
enum { TMP_LEN=128};
pj_ssize_t len;
pjsip_dialog *dlg;
/* Check arguments. */
@ -249,6 +277,11 @@ PJ_DEF(pj_status_t) pjsip_dlg_create_uas( pjsip_user_agent *ua,
if (status != PJ_SUCCESS)
return status;
/* Temprary string for getting the string representation of
* both local and remote URI.
*/
tmp.ptr = pj_pool_alloc(rdata->tp_info.pool, TMP_LEN);
/* Init local info from the To header. */
dlg->local.info = pjsip_hdr_clone(dlg->pool, rdata->msg_info.to);
pjsip_fromto_hdr_set_from(dlg->local.info);
@ -256,10 +289,36 @@ PJ_DEF(pj_status_t) pjsip_dlg_create_uas( pjsip_user_agent *ua,
/* Generate local tag. */
pj_create_unique_string(dlg->pool, &dlg->local.info->tag);
/* Print the local info. */
len = pjsip_uri_print(PJSIP_URI_IN_FROMTO_HDR,
dlg->local.info->uri, tmp.ptr, TMP_LEN);
if (len < 1) {
pj_ansi_strcpy(tmp.ptr, "<-error: uri too long->");
tmp.slen = pj_ansi_strlen(tmp.ptr);
} else
tmp.slen = len;
/* Save the local info. */
pj_strdup(dlg->pool, &dlg->local.info_str, &tmp);
/* Calculate hash value of local tag. */
dlg->local.tag_hval = pj_hash_calc(0, dlg->local.info->tag.ptr,
dlg->local.info->tag.slen);
/* Print the local info. */
len = pjsip_uri_print(PJSIP_URI_IN_FROMTO_HDR,
dlg->local.info->uri, tmp.ptr, TMP_LEN);
if (len < 1) {
pj_ansi_strcpy(tmp.ptr, "<-error: uri too long->");
tmp.slen = pj_ansi_strlen(tmp.ptr);
} else
tmp.slen = len;
/* Save the local info. */
pj_strdup(dlg->pool, &dlg->remote.info_str, &tmp);
/* Randomize local cseq */
dlg->local.first_cseq = pj_rand() % 0x7FFFFFFFL;
dlg->local.cseq = dlg->local.first_cseq;
@ -1085,6 +1144,8 @@ PJ_DEF(pj_status_t) pjsip_dlg_send_response( pjsip_dialog *dlg,
pjsip_transaction *tsx,
pjsip_tx_data *tdata)
{
pj_status_t status;
/* Sanity check. */
PJ_ASSERT_RETURN(dlg && tsx && tdata && tdata->msg, PJ_EINVAL);
PJ_ASSERT_RETURN(tdata->msg->type == PJSIP_RESPONSE_MSG,
@ -1107,7 +1168,14 @@ PJ_DEF(pj_status_t) pjsip_dlg_send_response( pjsip_dialog *dlg,
PJ_EINVALIDOP);
#endif
return pjsip_tsx_send_msg(tsx, tdata);
/* Must acquire dialog first, to prevent deadlock */
pjsip_dlg_inc_lock(dlg);
status = pjsip_tsx_send_msg(tsx, tdata);
pjsip_dlg_dec_lock(dlg);
return status;
}

2
pjsip/src/pjsip/sip_endpoint.c
View File

@ -325,6 +325,8 @@ PJ_DEF(pj_status_t) pjsip_endpt_add_capability( pjsip_endpoint *endpt,
htype==PJSIP_H_SUPPORTED,
PJ_EINVAL);
PJ_UNUSED_ARG(mod);
/* Find the header. */
hdr = (pjsip_generic_array_hdr*) pjsip_endpt_get_capability(endpt,
htype, hname);

12
pjsip/src/pjsip/sip_msg.c
View File

@ -1746,6 +1746,18 @@ PJ_DEF(int) pjsip_print_text_body(pjsip_msg_body *msg_body, char *buf, pj_size_t
return msg_body->len;
}
PJ_DEF(void*) pjsip_clone_text_data( pj_pool_t *pool, const void *data,
unsigned len)
{
char *newdata = "";
if (len) {
newdata = pj_pool_alloc(pool, len);
pj_memcpy(newdata, data, len);
}
return newdata;
}
PJ_DEF(pj_status_t) pjsip_msg_body_clone( pj_pool_t *pool,
pjsip_msg_body *dst_body,
const pjsip_msg_body *src_body )

185
pjsip/src/pjsua/main.c
View File

@ -113,8 +113,8 @@ static void keystroke_help(void)
pj_snprintf(reg_status, sizeof(reg_status),
"%s (%.*s;expires=%d)",
pjsip_get_status_text(pjsua.regc_last_code)->ptr,
(int)info.server_uri.slen,
info.server_uri.ptr,
(int)info.client_uri.slen,
info.client_uri.ptr,
info.next_reg);
} else {
@ -131,16 +131,16 @@ static void keystroke_help(void)
puts("| Call Commands: | IM & Presence: | Misc: |");
puts("| | | |");
puts("| m Make new call | i Send IM | o Send OPTIONS |");
puts("| a Answer call | s Subscribe presence | R (Re-)register |");
puts("| h Hangup call | u Unsubscribe presence | r Unregister |");
puts("| ] Select next dialog | t Toggle Online status | d Dump status |");
puts("| a Answer call | s Subscribe presence | rr (Re-)register |");
puts("| h Hangup call | u Unsubscribe presence | ru Unregister |");
puts("| ] Select next dialog | t ToGgle Online status | d Dump status |");
puts("| [ Select previous dialog | | |");
puts("+-----------------------------------------------------------------------------+");
puts("| Conference Command |");
puts("| cl List ports |");
puts("| cc Connect port |");
puts("| cd Disconnect port |");
puts("+-----------------------------------------------------------------------------+");
puts("| +--------------------------+-------------------+");
puts("| H Hold call | Conference Command | |");
puts("| v re-inVite (release hold) | cl List ports | |");
puts("| x Xfer call | cc Connect port | |");
puts("| | cd Disconnect port | |");
puts("+------------------------------+--------------------------+-------------------+");
puts("| q QUIT |");
puts("+=============================================================================+");
printf(">>> ");
@ -283,7 +283,6 @@ static void ui_console_main(void)
{
char menuin[10];
char buf[128];
pjsip_inv_session *inv;
struct input_result result;
//keystroke_help();
@ -305,9 +304,9 @@ static void ui_console_main(void)
if (result.nb_result == -1)
puts("You can't do that with make call!");
else
pjsua_invite(pjsua.buddies[result.nb_result].uri.ptr, &inv);
pjsua_invite(pjsua.buddies[result.nb_result].uri.ptr, NULL);
} else if (result.uri_result)
pjsua_invite(result.uri_result, &inv);
pjsua_invite(result.uri_result, NULL);
break;
@ -353,43 +352,100 @@ static void ui_console_main(void)
continue;
} else {
pj_status_t status;
pjsip_tx_data *tdata;
status = pjsip_inv_end_session(inv_session->inv,
PJSIP_SC_DECLINE, NULL, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Failed to create end session message",
status);
continue;
}
status = pjsip_inv_send_msg(inv_session->inv, tdata, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Failed to send end session message",
status);
continue;
}
pjsua_inv_hangup(inv_session, PJSIP_SC_DECLINE);
}
break;
case ']':
inv_session = inv_session->next;
if (inv_session == &pjsua.inv_list)
inv_session = pjsua.inv_list.next;
case '[':
/*
* Cycle next/prev dialog.
*/
if (menuin[0] == ']') {
inv_session = inv_session->next;
if (inv_session == &pjsua.inv_list)
inv_session = pjsua.inv_list.next;
} else {
inv_session = inv_session->prev;
if (inv_session == &pjsua.inv_list)
inv_session = pjsua.inv_list.prev;
}
if (inv_session != &pjsua.inv_list) {
char url[PJSIP_MAX_URL_SIZE];
int len;
len = pjsip_uri_print(0, inv_session->inv->dlg->remote.info->uri,
url, sizeof(url)-1);
if (len < 1) {
pj_ansi_strcpy(url, "<uri is too long>");
} else {
url[len] = '\0';
}
PJ_LOG(3,(THIS_FILE,"Current dialog: %s", url));
} else {
PJ_LOG(3,(THIS_FILE,"No current dialog"));
}
break;
case '[':
inv_session = inv_session->prev;
if (inv_session == &pjsua.inv_list)
inv_session = pjsua.inv_list.prev;
case 'H':
/*
* Hold call.
*/
if (inv_session != &pjsua.inv_list) {
pjsua_inv_set_hold(inv_session);
} else {
PJ_LOG(3,(THIS_FILE, "No current call"));
}
break;
case 'v':
/*
* Send re-INVITE (to release hold, etc).
*/
if (inv_session != &pjsua.inv_list) {
pjsua_inv_reinvite(inv_session);
} else {
PJ_LOG(3,(THIS_FILE, "No current call"));
}
break;
case 'x':
/*
* Transfer call.
*/
if (inv_session == &pjsua.inv_list) {
PJ_LOG(3,(THIS_FILE, "No current call"));
} else {
ui_input_url("Transfer to URL", buf, sizeof(buf), &result);
if (result.nb_result != NO_NB) {
if (result.nb_result == -1)
puts("You can't do that with transfer call!");
else
pjsua_inv_xfer_call( inv_session,
pjsua.buddies[result.nb_result].uri.ptr);
} else if (result.uri_result) {
pjsua_inv_xfer_call( inv_session, result.uri_result);
}
}
break;
case 's':
case 'u':
ui_input_url("Subscribe presence of", buf, sizeof(buf), &result);
/*
* Subscribe/unsubscribe presence.
*/
ui_input_url("(un)Subscribe presence of", buf, sizeof(buf), &result);
if (result.nb_result != NO_NB) {
if (result.nb_result == -1) {
unsigned i;
@ -402,19 +458,29 @@ static void ui_console_main(void)
pjsua_pres_refresh();
} else if (result.uri_result) {
puts("Sorry, can only subscribe to buddy's presence, not arbitrary URL (for now)");
puts("Sorry, can only subscribe to buddy's presence, "
"not arbitrary URL (for now)");
}
break;
case 'R':
pjsua_regc_update(PJ_TRUE);
case 'r':
switch (menuin[1]) {
case 'r':
/*
* Re-Register.
*/
pjsua_regc_update(PJ_TRUE);
break;
case 'u':
/*
* Unregister
*/
pjsua_regc_update(PJ_FALSE);
break;
}
break;
case 'r':
pjsua_regc_update(PJ_FALSE);
break;
case 't':
pjsua.online_status = !pjsua.online_status;
pjsua_pres_refresh();
@ -430,16 +496,31 @@ static void ui_console_main(void)
{
char src_port[10], dst_port[10];
pj_status_t status;
const char *src_title, *dst_title;
if (!simple_input("Connect src port #:", src_port, sizeof(src_port)))
conf_list();
src_title = (menuin[1]=='c'?
"Connect src port #":
"Disconnect src port #");
dst_title = (menuin[1]=='c'?
"To dst port #":
"From dst port #");
if (!simple_input(src_title, src_port, sizeof(src_port)))
break;
if (!simple_input("To dst port #:", dst_port, sizeof(dst_port)))
if (!simple_input(dst_title, dst_port, sizeof(dst_port)))
break;
if (menuin[1]=='c') {
status = pjmedia_conf_connect_port(pjsua.mconf, atoi(src_port), atoi(dst_port));
status = pjmedia_conf_connect_port(pjsua.mconf,
atoi(src_port),
atoi(dst_port));
} else {
status = pjmedia_conf_disconnect_port(pjsua.mconf, atoi(src_port), atoi(dst_port));
status = pjmedia_conf_disconnect_port(pjsua.mconf,
atoi(src_port),
atoi(dst_port));
}
if (status == PJ_SUCCESS) {
puts("Success");

42
pjsip/src/pjsua/pjsua.h
View File

@ -68,6 +68,8 @@ struct pjsua_inv_data
pjmedia_session *session; /**< The media session. */
unsigned conf_slot; /**< Slot # in conference bridge. */
unsigned call_slot; /**< RTP media index in med_sock_use[] */
pjsip_evsub *xfer_sub; /**< Xfer server subscription, if this
call was triggered by xfer. */
};
@ -254,7 +256,7 @@ pj_status_t pjsua_destroy(void);
* Make outgoing call.
*/
pj_status_t pjsua_invite(const char *cstr_dest_uri,
pjsip_inv_session **p_inv);
struct pjsua_inv_data **p_inv_data);
/**
@ -263,6 +265,31 @@ pj_status_t pjsua_invite(const char *cstr_dest_uri,
pj_bool_t pjsua_inv_on_incoming(pjsip_rx_data *rdata);
/**
* Hangup call.
*/
void pjsua_inv_hangup(struct pjsua_inv_data *inv_session, int code);
/**
* Put call on-hold.
*/
void pjsua_inv_set_hold(struct pjsua_inv_data *inv_session);
/**
* Send re-INVITE (to release hold).
*/
void pjsua_inv_reinvite(struct pjsua_inv_data *inv_session);
/**
* Transfer call.
*/
void pjsua_inv_xfer_call(struct pjsua_inv_data *inv_session,
const char *dest);
/**
* Callback to be called by session when invite session's state has changed.
*/
@ -283,6 +310,19 @@ void pjsua_inv_on_new_session(pjsip_inv_session *inv, pjsip_event *e);
*/
void pjsua_inv_on_media_update(pjsip_inv_session *inv, pj_status_t status);
/**
* Callback called when invite session received new offer.
*/
void pjsua_inv_on_rx_offer( pjsip_inv_session *inv,
const pjmedia_sdp_session *offer);
/**
* Callback to receive transaction state inside invite session or dialog
* (e.g. REFER, MESSAGE).
*/
void pjsua_inv_on_tsx_state_changed(pjsip_inv_session *inv,
pjsip_transaction *tsx,
pjsip_event *e);
/**
* Terminate all calls.

12
pjsip/src/pjsua/pjsua_core.c
View File

@ -141,7 +141,7 @@ static pj_status_t init_sockets(pj_bool_t sip,
enum {
RTP_START_PORT = 4000,
RTP_RANDOM_START = 2,
RTP_RETRY = 10
RTP_RETRY = 20
};
enum {
SIP_SOCK,
@ -392,6 +392,9 @@ static pj_status_t init_stack(void)
inv_cb.on_state_changed = &pjsua_inv_on_state_changed;
inv_cb.on_new_session = &pjsua_inv_on_new_session;
inv_cb.on_media_update = &pjsua_inv_on_media_update;
inv_cb.on_rx_offer = &pjsua_inv_on_rx_offer;
inv_cb.on_tsx_state_changed = &pjsua_inv_on_tsx_state_changed;
/* Initialize invite session module: */
status = pjsip_inv_usage_init(pjsua.endpt, &pjsua.mod, &inv_cb);
@ -479,6 +482,9 @@ pj_status_t pjsua_init(void)
pjsip_pres_init_module( pjsua.endpt, pjsip_evsub_instance());
/* Init xfer/REFER module */
pjsip_xfer_init_module( pjsua.endpt );
/* Init pjsua presence handler: */
@ -751,6 +757,10 @@ pj_status_t pjsua_destroy(void)
PJ_LOG(4,(THIS_FILE, "Shutting down..."));
busy_sleep(1000);
/* Destroy conference bridge. */
if (pjsua.mconf)
pjmedia_conf_destroy(pjsua.mconf);
/* Shutdown pjmedia-codec: */
pjmedia_codec_deinit();

829
pjsip/src/pjsua/pjsua_inv.c
View File

@ -33,7 +33,7 @@
* Make outgoing call.
*/
pj_status_t pjsua_invite(const char *cstr_dest_uri,
pjsip_inv_session **p_inv)
struct pjsua_inv_data **p_inv_data)
{
pj_str_t dest_uri;
pjsip_dialog *dlg;
@ -136,8 +136,8 @@ pj_status_t pjsua_invite(const char *cstr_dest_uri,
/* Done. */
*p_inv = inv;
if (p_inv_data)
*p_inv_data = inv_data;
return PJ_SUCCESS;
@ -158,127 +158,145 @@ pj_bool_t pjsua_inv_on_incoming(pjsip_rx_data *rdata)
pjsip_dialog *dlg = pjsip_rdata_get_dlg(rdata);
pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata);
pjsip_msg *msg = rdata->msg_info.msg;
pjsip_tx_data *response = NULL;
unsigned options = 0;
pjsip_inv_session *inv;
struct pjsua_inv_data *inv_data;
pjmedia_sdp_session *answer;
int med_sk_index;
pj_status_t status;
/*
* Handle incoming INVITE outside dialog.
/* Don't want to handle anything but INVITE */
if (msg->line.req.method.id != PJSIP_INVITE_METHOD)
return PJ_FALSE;
/* Don't want to handle anything that's already associated with
* existing dialog or transaction.
*/
if (dlg == NULL && tsx == NULL &&
msg->line.req.method.id == PJSIP_INVITE_METHOD)
{
pj_status_t status;
pjsip_tx_data *response = NULL;
unsigned options = 0;
if (dlg || tsx)
return PJ_FALSE;
/* Verify that we can handle the request. */
status = pjsip_inv_verify_request(rdata, &options, NULL, NULL,
pjsua.endpt, &response);
if (status != PJ_SUCCESS) {
/*
* No we can't handle the incoming INVITE request.
*/
/* Verify that we can handle the request. */
status = pjsip_inv_verify_request(rdata, &options, NULL, NULL,
pjsua.endpt, &response);
if (status != PJ_SUCCESS) {
if (response) {
pjsip_response_addr res_addr;
/*
* No we can't handle the incoming INVITE request.
*/
pjsip_get_response_addr(response->pool, rdata, &res_addr);
pjsip_endpt_send_response(pjsua.endpt, &res_addr, response,
NULL, NULL);
if (response) {
pjsip_response_addr res_addr;
} else {
/* Respond with 500 (Internal Server Error) */
pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
NULL, NULL);
}
pjsip_get_response_addr(response->pool, rdata, &res_addr);
pjsip_endpt_send_response(pjsua.endpt, &res_addr, response,
NULL, NULL);
} else {
/*
* Yes we can handle the incoming INVITE request.
*/
pjsip_inv_session *inv;
struct pjsua_inv_data *inv_data;
pjmedia_sdp_session *answer;
int med_sk_index;
/* Find free socket. */
for (med_sk_index=0; med_sk_index<PJSUA_MAX_CALLS; ++med_sk_index) {
if (!pjsua.med_sock_use[med_sk_index])
break;
}
if (med_sk_index == PJSUA_MAX_CALLS) {
PJ_LOG(3,(THIS_FILE, "Error: too many calls!"));
return PJ_TRUE;
}
pjsua.med_sock_use[med_sk_index] = 1;
/* Get media capability from media endpoint: */
status = pjmedia_endpt_create_sdp( pjsua.med_endpt, rdata->tp_info.pool,
1, &pjsua.med_sock_info[med_sk_index],
&answer );
if (status != PJ_SUCCESS) {
pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
NULL, NULL);
pjsua.med_sock_use[med_sk_index] = 0;
return PJ_TRUE;
}
/* Create dialog: */
status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata,
&pjsua.contact_uri, &dlg);
if (status != PJ_SUCCESS) {
pjsua.med_sock_use[med_sk_index] = 0;
return PJ_TRUE;
}
/* Create invite session: */
status = pjsip_inv_create_uas( dlg, rdata, answer, 0, &inv);
if (status != PJ_SUCCESS) {
status = pjsip_dlg_create_response( dlg, rdata, 500, NULL,
&response);
if (status == PJ_SUCCESS)
status = pjsip_dlg_send_response(dlg,
pjsip_rdata_get_tsx(rdata),
response);
pjsua.med_sock_use[med_sk_index] = 0;
return PJ_TRUE;
}
/* Create and attach pjsua data to the dialog: */
inv_data = pj_pool_zalloc(dlg->pool, sizeof(struct pjsua_inv_data));
inv_data->inv = inv;
inv_data->call_slot = inv_data->call_slot = med_sk_index;
dlg->mod_data[pjsua.mod.id] = inv_data;
inv->mod_data[pjsua.mod.id] = inv_data;
pj_list_push_back(&pjsua.inv_list, inv_data);
/* Answer with 100 (using the dialog, not invite): */
status = pjsip_dlg_create_response(dlg, rdata, 100, NULL, &response);
if (status == PJ_SUCCESS)
status = pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), response);
/* Respond with 500 (Internal Server Error) */
pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
NULL, NULL);
}
/* This INVITE request has been handled. */
return PJ_TRUE;
}
/*
* Yes we can handle the incoming INVITE request.
*/
/* Find free call slot. */
for (med_sk_index=0; med_sk_index<PJSUA_MAX_CALLS; ++med_sk_index) {
if (!pjsua.med_sock_use[med_sk_index])
break;
}
if (med_sk_index == PJSUA_MAX_CALLS) {
pjsip_endpt_respond_stateless(pjsua.endpt, rdata,
PJSIP_SC_BUSY_HERE, NULL,
NULL, NULL);
return PJ_TRUE;
}
return PJ_FALSE;
pjsua.med_sock_use[med_sk_index] = 1;
/* Get media capability from media endpoint: */
status = pjmedia_endpt_create_sdp( pjsua.med_endpt, rdata->tp_info.pool,
1, &pjsua.med_sock_info[med_sk_index],
&answer );
if (status != PJ_SUCCESS) {
pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
NULL, NULL);
/* Free call socket. */
pjsua.med_sock_use[med_sk_index] = 0;
return PJ_TRUE;
}
/* Create dialog: */
status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata,
&pjsua.contact_uri, &dlg);
if (status != PJ_SUCCESS) {
pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
NULL, NULL);
/* Free call socket. */
pjsua.med_sock_use[med_sk_index] = 0;
return PJ_TRUE;
}
/* Create invite session: */
status = pjsip_inv_create_uas( dlg, rdata, answer, 0, &inv);
if (status != PJ_SUCCESS) {
pjsip_dlg_respond(dlg, rdata, 500, NULL);
/* Free call socket. */
pjsua.med_sock_use[med_sk_index] = 0;
// TODO: Need to delete dialog
return PJ_TRUE;
}
/* Create and attach pjsua data to the dialog: */
inv_data = pj_pool_zalloc(dlg->pool, sizeof(struct pjsua_inv_data));
inv_data->inv = inv;
inv_data->call_slot = inv_data->call_slot = med_sk_index;
dlg->mod_data[pjsua.mod.id] = inv_data;
inv->mod_data[pjsua.mod.id] = inv_data;
pj_list_push_back(&pjsua.inv_list, inv_data);
/* Answer with 100 (using the dialog, not invite): */
status = pjsip_dlg_create_response(dlg, rdata, 100, NULL, &response);
if (status != PJ_SUCCESS) {
pjsip_dlg_respond(dlg, rdata, 500, NULL);
/* Free call socket. */
pjsua.med_sock_use[med_sk_index] = 0;
// TODO: Need to delete dialog
} else {
status = pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata),
response);
}
/* This INVITE request has been handled. */
return PJ_TRUE;
}
@ -288,12 +306,66 @@ pj_bool_t pjsua_inv_on_incoming(pjsip_rx_data *rdata)
*/
void pjsua_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
{
struct pjsua_inv_data *inv_data;
inv_data = inv->dlg->mod_data[pjsua.mod.id];
/* If this is an outgoing INVITE that was created because of
* REFER/transfer, send NOTIFY to transferer.
*/
if (inv_data && inv_data->xfer_sub && e->type==PJSIP_EVENT_TSX_STATE)
{
int st_code = -1;
pjsip_evsub_state ev_state = PJSIP_EVSUB_STATE_ACTIVE;
switch (inv->state) {
case PJSIP_INV_STATE_NULL:
case PJSIP_INV_STATE_CALLING:
/* Do nothing */
break;
case PJSIP_INV_STATE_EARLY:
case PJSIP_INV_STATE_CONNECTING:
st_code = e->body.tsx_state.tsx->status_code;
ev_state = PJSIP_EVSUB_STATE_ACTIVE;
break;
case PJSIP_INV_STATE_CONFIRMED:
/* When state is confirmed, send the final 200/OK and terminate
* subscription.
*/
st_code = e->body.tsx_state.tsx->status_code;
ev_state = PJSIP_EVSUB_STATE_TERMINATED;
break;
case PJSIP_INV_STATE_DISCONNECTED:
st_code = e->body.tsx_state.tsx->status_code;
ev_state = PJSIP_EVSUB_STATE_TERMINATED;
break;
}
if (st_code != -1) {
pjsip_tx_data *tdata;
pj_status_t status;
status = pjsip_xfer_notify( inv_data->xfer_sub,
ev_state, st_code,
NULL, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create NOTIFY", status);
} else {
status = pjsip_xfer_send_request(inv_data->xfer_sub, tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send NOTIFY", status);
}
}
}
}
/* Destroy media session when invite session is disconnected. */
if (inv->state == PJSIP_INV_STATE_DISCONNECTED) {
struct pjsua_inv_data *inv_data;
inv_data = inv->dlg->mod_data[pjsua.mod.id];
pj_assert(inv_data != NULL);
@ -317,6 +389,158 @@ void pjsua_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
}
/*
* Callback called by event framework when the xfer subscription state
* has changed.
*/
static void xfer_on_evsub_state( pjsip_evsub *sub, pjsip_event *event)
{
PJ_UNUSED_ARG(event);
/*
* We're only interested when subscription is terminated, to
* clear the xfer_sub member of the inv_data.
*/
if (pjsip_evsub_get_state(sub) == PJSIP_EVSUB_STATE_TERMINATED) {
struct pjsua_inv_data *inv_data;
inv_data = pjsip_evsub_get_mod_data(sub, pjsua.mod.id);
if (!inv_data)
return;
pjsip_evsub_set_mod_data(sub, pjsua.mod.id, NULL);
inv_data->xfer_sub = NULL;
PJ_LOG(3,(THIS_FILE, "Xfer subscription terminated"));
}
}
/*
* Follow transfer (REFER) request.
*/
static void on_call_transfered( pjsip_inv_session *inv,
pjsip_rx_data *rdata )
{
pj_status_t status;
pjsip_tx_data *tdata;
struct pjsua_inv_data *inv_data;
const pj_str_t str_refer_to = { "Refer-To", 8};
pjsip_generic_string_hdr *refer_to;
char *uri;
struct pjsip_evsub_user xfer_cb;
pjsip_evsub *sub;
/* Find the Refer-To header */
refer_to = (pjsip_generic_string_hdr*)
pjsip_msg_find_hdr_by_name(rdata->msg_info.msg, &str_refer_to, NULL);
if (refer_to == NULL) {
/* Invalid Request.
* No Refer-To header!
*/
PJ_LOG(4,(THIS_FILE, "Received REFER without Refer-To header!"));
pjsip_dlg_respond( inv->dlg, rdata, 400, NULL);
return;
}
PJ_LOG(3,(THIS_FILE, "Call to %.*s is being transfered to %.*s",
(int)inv->dlg->remote.info_str.slen,
inv->dlg->remote.info_str.ptr,
(int)refer_to->hvalue.slen,
refer_to->hvalue.ptr));
/* Init callback */
pj_memset(&xfer_cb, 0, sizeof(xfer_cb));
xfer_cb.on_evsub_state = &xfer_on_evsub_state;
/* Create transferee event subscription */
status = pjsip_xfer_create_uas( inv->dlg, &xfer_cb, rdata, &sub);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create xfer uas", status);
pjsip_dlg_respond( inv->dlg, rdata, 500, NULL);
return;
}
/* Accept the REFER request, send 200 (OK). */
pjsip_xfer_accept(sub, rdata, 200, NULL);
/* Create initial NOTIFY request */
status = pjsip_xfer_notify( sub, PJSIP_EVSUB_STATE_ACTIVE,
100, NULL, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER", status);
return;
}
/* Send initial NOTIFY request */
status = pjsip_xfer_send_request( sub, tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER", status);
return;
}
/* We're cheating here.
* We need to get a null terminated string from a pj_str_t.
* So grab the pointer from the hvalue and NULL terminate it, knowing
* that the NULL position will be occupied by a newline.
*/
uri = refer_to->hvalue.ptr;
uri[refer_to->hvalue.slen] = '\0';
/* Now make the outgoing call. */
status = pjsua_invite(uri, &inv_data);
if (status != PJ_SUCCESS) {
/* Notify xferer about the error */
status = pjsip_xfer_notify(sub, PJSIP_EVSUB_STATE_TERMINATED,
500, NULL, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create NOTIFY to REFER",
status);
return;
}
status = pjsip_xfer_send_request(sub, tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send NOTIFY to REFER",
status);
return;
}
return;
}
/* Put the server subscription in inv_data.
* Subsequent state changed in pjsua_inv_on_state_changed() will be
* reported back to the server subscription.
*/
inv_data->xfer_sub = sub;
/* Put the invite_data in the subscription. */
pjsip_evsub_set_mod_data(sub, pjsua.mod.id, inv_data);
}
/*
* This callback is called when transaction state has changed in INVITE
* session. We use this to trap incoming REFER request.
*/
void pjsua_inv_on_tsx_state_changed(pjsip_inv_session *inv,
pjsip_transaction *tsx,
pjsip_event *e)
{
if (tsx->role==PJSIP_ROLE_UAS &&
tsx->state==PJSIP_TSX_STATE_TRYING &&
pjsip_method_cmp(&tsx->method, &pjsip_refer_method)==0)
{
/*
* Incoming REFER request.
*/
on_call_transfered(inv, e->body.tsx_state.src.rdata);
}
}
/*
* This callback is called by invite session framework when UAC session
* has forked.
@ -330,6 +554,109 @@ void pjsua_inv_on_new_session(pjsip_inv_session *inv, pjsip_event *e)
}
/*
* Create inactive SDP for call hold.
*/
static pj_status_t create_inactive_sdp(struct pjsua_inv_data *inv_session,
pjmedia_sdp_session **p_answer)
{
pj_status_t status;
pjmedia_sdp_conn *conn;
pjmedia_sdp_attr *attr;
pjmedia_sdp_session *sdp;
/* Create new offer */
status = pjmedia_endpt_create_sdp(pjsua.med_endpt, pjsua.pool, 1,
&pjsua.med_sock_info[inv_session->call_slot],
&sdp);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create local SDP", status);
return status;
}
/* Get SDP media connection line */
conn = sdp->media[0]->conn;
if (!conn)
conn = sdp->conn;
/* Modify address */
conn->addr = pj_str("0.0.0.0");
/* Remove existing directions attributes */
pjmedia_sdp_media_remove_all_attr(sdp->media[0], "sendrecv");
pjmedia_sdp_media_remove_all_attr(sdp->media[0], "sendonly");
pjmedia_sdp_media_remove_all_attr(sdp->media[0], "recvonly");
pjmedia_sdp_media_remove_all_attr(sdp->media[0], "inactive");
/* Add inactive attribute */
attr = pjmedia_sdp_attr_create(pjsua.pool, "inactive", NULL);
pjmedia_sdp_media_add_attr(sdp->media[0], attr);
*p_answer = sdp;
return status;
}
/*
* Called when session received new offer.
*/
void pjsua_inv_on_rx_offer( pjsip_inv_session *inv,
const pjmedia_sdp_session *offer)
{
struct pjsua_inv_data *inv_data;
pjmedia_sdp_conn *conn;
pjmedia_sdp_session *answer;
pj_bool_t is_remote_active;
pj_status_t status;
inv_data = inv->dlg->mod_data[pjsua.mod.id];
/*
* See if remote is offering active media (i.e. not on-hold)
*/
is_remote_active = PJ_TRUE;
conn = offer->media[0]->conn;
if (!conn)
conn = offer->conn;
if (pj_strcmp2(&conn->addr, "0.0.0.0")==0 ||
pj_strcmp2(&conn->addr, "0")==0)
{
is_remote_active = PJ_FALSE;
}
else if (pjmedia_sdp_media_find_attr2(offer->media[0], "inactive", NULL))
{
is_remote_active = PJ_FALSE;
}
PJ_LOG(4,(THIS_FILE, "Received SDP offer, remote media is %s",
(is_remote_active ? "active" : "inactive")));
/* Supply candidate answer */
if (is_remote_active) {
status = pjmedia_endpt_create_sdp( pjsua.med_endpt, inv->pool, 1,
&pjsua.med_sock_info[inv_data->call_slot],
&answer);
} else {
status = create_inactive_sdp( inv_data, &answer );
}
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create local SDP", status);
return;
}
status = pjsip_inv_set_sdp_answer(inv, answer);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to set answer", status);
return;
}
}
/*
* Callback to be called when SDP offer/answer negotiation has just completed
* in the session. This function will start/update media if negotiation
@ -340,6 +667,9 @@ void pjsua_inv_on_media_update(pjsip_inv_session *inv, pj_status_t status)
struct pjsua_inv_data *inv_data;
const pjmedia_sdp_session *local_sdp;
const pjmedia_sdp_session *remote_sdp;
pjmedia_port *media_port;
pj_str_t port_name;
char tmp[PJSIP_MAX_URL_SIZE];
if (status != PJ_SUCCESS) {
@ -380,48 +710,240 @@ void pjsua_inv_on_media_update(pjsip_inv_session *inv, pj_status_t status)
/* Create new media session.
* The media session is active immediately.
*/
if (!pjsua.null_audio) {
pjmedia_port *media_port;
pj_str_t port_name;
char tmp[PJSIP_MAX_URL_SIZE];
status = pjmedia_session_create( pjsua.med_endpt, 1,
&pjsua.med_sock_info[inv_data->call_slot],
local_sdp, remote_sdp,
&inv_data->session );
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create media session",
status);
return;
}
pjmedia_session_get_port(inv_data->session, 0, &media_port);
port_name.ptr = tmp;
port_name.slen = pjsip_uri_print(PJSIP_URI_IN_REQ_URI,
inv_data->inv->dlg->remote.info->uri,
tmp, sizeof(tmp));
if (port_name.slen < 1) {
port_name = pj_str("call");
}
status = pjmedia_conf_add_port( pjsua.mconf, inv->pool,
media_port,
&port_name,
&inv_data->conf_slot);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create conference slot",
status);
pjmedia_session_destroy(inv_data->session);
inv_data->session = NULL;
return;
}
pjmedia_conf_connect_port( pjsua.mconf, 0, inv_data->conf_slot);
pjmedia_conf_connect_port( pjsua.mconf, inv_data->conf_slot, 0);
PJ_LOG(3,(THIS_FILE,"Media has been started successfully"));
if (pjsua.null_audio)
return;
status = pjmedia_session_create( pjsua.med_endpt, 1,
&pjsua.med_sock_info[inv_data->call_slot],
local_sdp, remote_sdp,
&inv_data->session );
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create media session",
status);
return;
}
/* Get the port interface of the first stream in the session.
* We need the port interface to add to the conference bridge.
*/
pjmedia_session_get_port(inv_data->session, 0, &media_port);
/*
* Add the call to conference bridge.
*/
port_name.ptr = tmp;
port_name.slen = pjsip_uri_print(PJSIP_URI_IN_REQ_URI,
inv_data->inv->dlg->remote.info->uri,
tmp, sizeof(tmp));
if (port_name.slen < 1) {
port_name = pj_str("call");
}
status = pjmedia_conf_add_port( pjsua.mconf, inv->pool,
media_port,
&port_name,
&inv_data->conf_slot);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create conference slot",
status);
pjmedia_session_destroy(inv_data->session);
inv_data->session = NULL;
return;
}
/* Connect new call to the sound device port (port zero) in the
* main conference bridge.
*/
pjmedia_conf_connect_port( pjsua.mconf, 0, inv_data->conf_slot);
pjmedia_conf_connect_port( pjsua.mconf, inv_data->conf_slot, 0);
/* Done. */
{
struct pjmedia_session_info sess_info;
char info[80];
int info_len = 0;
unsigned i;
pjmedia_session_get_info(inv_data->session, &sess_info);
for (i=0; i<sess_info.stream_cnt; ++i) {
int len;
const char *dir;
pjmedia_stream_info *strm_info = &sess_info.stream_info[i];
switch (strm_info->dir) {
case PJMEDIA_DIR_NONE:
dir = "inactive";
break;
case PJMEDIA_DIR_ENCODING:
dir = "sendonly";
break;
case PJMEDIA_DIR_DECODING:
dir = "recvonly";
break;
case PJMEDIA_DIR_ENCODING_DECODING:
dir = "sendrecv";
break;
default:
dir = "unknown";
break;
}
len = pj_ansi_sprintf( info+info_len,
", stream #%d: %.*s (%s)", i,
(int)strm_info->fmt.encoding_name.slen,
(int)strm_info->fmt.encoding_name.ptr,
dir);
if (len > 0)
info_len += len;
}
PJ_LOG(3,(THIS_FILE,"Media started%s", info));
}
}
/*
* Hangup call.
*/
void pjsua_inv_hangup(struct pjsua_inv_data *inv_session, int code)
{
pj_status_t status;
pjsip_tx_data *tdata;
status = pjsip_inv_end_session(inv_session->inv,
code, NULL, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Failed to create end session message",
status);
return;
}
status = pjsip_inv_send_msg(inv_session->inv, tdata, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE,
"Failed to send end session message",
status);
return;
}
}
/*
* Put call on-Hold.
*/
void pjsua_inv_set_hold(struct pjsua_inv_data *inv_session)
{
pjmedia_sdp_session *sdp;
pjsip_inv_session *inv = inv_session->inv;
pjsip_tx_data *tdata;
pj_status_t status;
if (inv->state != PJSIP_INV_STATE_CONFIRMED) {
PJ_LOG(3,(THIS_FILE, "Can not hold call that is not confirmed"));
return;
}
status = create_inactive_sdp(inv_session, &sdp);
if (status != PJ_SUCCESS)
return;
/* Send re-INVITE with new offer */
status = pjsip_inv_reinvite( inv_session->inv, NULL, sdp, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create re-INVITE", status);
return;
}
status = pjsip_inv_send_msg( inv_session->inv, tdata, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send re-INVITE", status);
return;
}
}
/*
* re-INVITE.
*/
void pjsua_inv_reinvite(struct pjsua_inv_data *inv_session)
{
pjmedia_sdp_session *sdp;
pjsip_tx_data *tdata;
pjsip_inv_session *inv = inv_session->inv;
pj_status_t status;
if (inv->state != PJSIP_INV_STATE_CONFIRMED) {
PJ_LOG(3,(THIS_FILE, "Can not re-INVITE call that is not confirmed"));
return;
}
/* Create SDP */
status = pjmedia_endpt_create_sdp( pjsua.med_endpt, inv->pool, 1,
&pjsua.med_sock_info[inv_session->call_slot],
&sdp);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to get SDP from media endpoint", status);
return;
}
/* Send re-INVITE with new offer */
status = pjsip_inv_reinvite( inv_session->inv, NULL, sdp, &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create re-INVITE", status);
return;
}
status = pjsip_inv_send_msg( inv_session->inv, tdata, NULL);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send re-INVITE", status);
return;
}
}
/*
* Transfer call.
*/
void pjsua_inv_xfer_call(struct pjsua_inv_data *inv_session,
const char *dest)
{
pjsip_evsub *sub;
pjsip_tx_data *tdata;
pj_str_t tmp;
pj_status_t status;
/* Create xfer client subscription.
* We're not interested in knowing the transfer result, so we
* put NULL as the callback.
*/
status = pjsip_xfer_create_uac(inv_session->inv->dlg, NULL, &sub);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create xfer", status);
return;
}
/*
* Create REFER request.
*/
status = pjsip_xfer_initiate(sub, pj_cstr(&tmp, dest), &tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to create REFER request", status);
return;
}
/* Send. */
status = pjsip_xfer_send_request(sub, tdata);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Unable to send REFER request", status);
return;
}
/* For simplicity (that's what this program is intended to be!),
* leave the original invite session as it is. More advanced application
* may want to hold the INVITE, or terminate the invite, or whatever.
*/
}
@ -445,3 +967,4 @@ void pjsua_inv_shutdown()
}
}