Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
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/* Endpoint types */
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/*
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* (C) 2017 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
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* All Rights Reserved
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*
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* Author: Philipp Maier
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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2020-06-18 23:34:42 +00:00
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#include <osmocom/core/msgb.h>
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2020-07-06 15:44:12 +00:00
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#include <osmocom/gsm/i460_mux.h>
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2021-08-23 23:36:49 +00:00
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#include <osmocom/mgcp/mgcp_protocol.h>
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2020-06-18 23:34:42 +00:00
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2020-08-31 11:29:11 +00:00
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struct sockaddr;
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
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struct mgcp_conn;
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2020-06-18 23:34:42 +00:00
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|
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struct mgcp_conn_rtp;
|
2018-01-24 10:58:56 +00:00
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|
struct mgcp_endpoint;
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
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|
|
2020-07-02 21:08:37 +00:00
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/* Number of E1 subslots (different variants, not all useable at the same time) */
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#define MGCP_ENDP_E1_SUBSLOTS 15
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2020-05-27 14:29:22 +00:00
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#define LOGPENDP(endp, cat, level, fmt, args...) \
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2020-06-02 18:55:34 +00:00
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LOGP(cat, level, "endpoint:%s " fmt, \
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endp ? endp->name : "none", \
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2020-05-27 14:29:22 +00:00
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|
## args)
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2020-06-18 23:34:42 +00:00
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struct osmo_rtp_msg_ctx {
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|
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int proto;
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struct mgcp_conn_rtp *conn_src;
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2020-08-31 11:29:11 +00:00
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struct osmo_sockaddr *from_addr;
|
2020-06-18 23:34:42 +00:00
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|
};
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#define OSMO_RTP_MSG_CTX(MSGB) ((struct osmo_rtp_msg_ctx*)(MSGB)->cb)
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osmo_static_assert(sizeof(((struct msgb*)0)->cb) >= sizeof(struct osmo_rtp_msg_ctx), osmo_rtp_msg_ctx_fits_in_msgb_cb);
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/* Callback type for RTP dispatcher functions (e.g mgcp_dispatch_rtp_bridge_cb, see below).
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* The OSMO_RTP_MSG_CTX() should be set appropriately on the msg. */
|
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typedef int (*mgcp_dispatch_rtp_cb) (struct msgb *msg);
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
|
2018-01-24 10:39:32 +00:00
|
|
|
/* Callback type for endpoint specific cleanup actions. This function
|
|
|
|
* is automatically executed when a connection is freed (see mgcp_conn_free()
|
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|
* in mgcp_conn.c). Depending on the type of the endpoint there may be endpoint
|
|
|
|
* specific things to take care of once a connection has been removed. */
|
|
|
|
typedef void (*mgcp_cleanup_cp) (struct mgcp_endpoint *endp,
|
|
|
|
struct mgcp_conn *conn);
|
|
|
|
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
/*! MGCP endpoint properties */
|
|
|
|
struct mgcp_endpoint_type {
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! maximum number of connections */
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
int max_conns;
|
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! callback that defines how to dispatch incoming RTP data */
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
mgcp_dispatch_rtp_cb dispatch_rtp_cb;
|
2018-01-24 10:39:32 +00:00
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! callback that implements endpoint specific cleanup actions */
|
2018-01-24 10:39:32 +00:00
|
|
|
mgcp_cleanup_cp cleanup_cb;
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*! MGCP endpoint typeset */
|
|
|
|
struct mgcp_endpoint_typeset {
|
|
|
|
struct mgcp_endpoint_type rtp;
|
2020-06-10 13:27:14 +00:00
|
|
|
struct mgcp_endpoint_type e1;
|
Initially implement the new osmo-mgw and libosmo-mgcp
Leave the old osmo-bsc_mgcp and libosmo-legacy-mgcp as it is; on a copy thereof
(added by a previous commit), apply changes to initially implement the new
osmo-mgw.
Adjust build system and debian packaging to accomodate the new libosmo-mgcp and
osmo-mgw.
The main differences:
*) use a list to manage rtp connections.
Aggregate all rtp related information inside a single struct.
Use a linked list to manage the both connections (net and bts).
The idea behind using a list is that we might support conference
calls at some later point.
Store the linked list in struct mgcp_endpoint, have a private linked
list for each endpoint. The list contains connection items which are
implemented in struct mgcp_conn. A connection is allocated and freed
using the functions in mgcp_conn.c. A connection is allocated on the
reception of a CRCX command and freed with the reception of a DLCX
command.
*) remove external transcoder feature
Fortunatelly the external transcoder feature is not needed
anymore. This patch removes the related code.
*) vty: get rid of CONN_BTS and CONN_NET
Since the new connection model does not make a difference
between BTS and NET connections the VTY should not use
the fixed CONN_BTS and CONN_NET constants.
- Handle the conns list inside the endpoint directly
- introduce function to dump basic rtp connection info
- introduce human readable names for connections
Parts of the code adjusted to use generalized connections instead of explicit
BTS/NET ones:
- teach mgcp_send_dummy() to send dummy packets to any RTP connection
- network: generalize mgcp_bind_net/bts_rtp_port()
- network: generalize mgcp_send()
- tap: generalize call tapping feature
- stat: generalize statistics
- Replace rtp_data_net() and rtp_data_bts() with generalized rtp_data_rx()
*) mgcp_protocol.c fixes:
- check ci string before it is converted:
In case of missing ci, a nullpointer is delivered to strtoul().
Add a function that takes ci, checks it and converts it to an
uint32_t. Use the return code to react on missing ci.
- output error message on missing CI.
- when parsing the mode, print log message when mode is missing.
- use mode_orig when mode is missing.
- fix ptime formatstring to use %u rather than %d.
- cosmetic: log when connection is deleted on DLCX.
- change loglevels of CRCX, MDCX, DLCX events from DEBUG to NOTICE.
*) mgcp_test
- apply rename of strline_r() to mgcp_strline().
- MGCP command macros:
- Add 'I: 1' parameters.
- Use proper port numbers:
from m=audio 0 RTP/AVP 126
to m=audio 16002 RTP/AVP 128
- Change ptime to 'a=ptime:40' because this is what the MGW currently
returns. CRCX generally feed a ptime:40 and this is expected to be
returned.
- struct mgcp_test: Use only one ptype, there are no explicit BTS and NET
endpoints anymore.
Hence remove one column from tests[].
- test_messages():
- Enable: remove '#if 0'
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway.
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_retransmission():
- remove endpoint init, now done internally.
- add false asserts in error cases.
- test_packet_error_detection():
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- remove endpoint init, now done internally.
- add false assert in error case.
- Assert that a conn really vanishes on DLCX, previously the conn would
remain and just be unused, now it is actually discarded.
- test_no_cycle()
- Remove concept of BTS and NET endpoints: test only one conn, as they are
now interchangeable anyway. Use arbitrary conn ids (e.g. 4711).
- test_no_name()
- Enable: remove '#if 0'.
- remove endpoint init, now done internally.
- add false assert in error case.
- mgcp_test.ok: adjust expected results to status quo:
- We now see two dummy packets instead of one, now sent to both sides because
we don't know of BTS or NET side. (maybe drop dummy packets later...)
- packet duration, conn mode: now sane defaults show instead of unset.
- various whitespace and formatting changes from lindent.
Change-Id: Ie008599136c7ed8a0dfbb0cf803188975a499fc5
2017-08-22 14:35:41 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*! static MGCP endpoint typeset (pre-initalized, read-only) */
|
|
|
|
extern const struct mgcp_endpoint_typeset ep_typeset;
|
2018-01-24 10:58:56 +00:00
|
|
|
|
2018-02-01 12:31:15 +00:00
|
|
|
/*! MGCP endpoint model */
|
|
|
|
struct mgcp_endpoint {
|
|
|
|
|
2020-06-02 18:55:34 +00:00
|
|
|
/*! Unique endpoint name, used for addressing via MGCP */
|
|
|
|
char *name;
|
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! Call identifier string (as supplied by the call agant) */
|
2018-02-01 12:31:15 +00:00
|
|
|
char *callid;
|
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! Local connection options (see mgcp_internal.h) */
|
2018-02-01 12:31:15 +00:00
|
|
|
struct mgcp_lco local_options;
|
|
|
|
|
2018-08-28 19:12:59 +00:00
|
|
|
/*! List of struct mgcp_conn, of the connections active on this endpoint */
|
2018-02-01 12:31:15 +00:00
|
|
|
struct llist_head conns;
|
|
|
|
|
2020-06-02 18:55:34 +00:00
|
|
|
/*! Backpointer to the trunk this endpoint belongs to */
|
2020-06-02 18:15:30 +00:00
|
|
|
struct mgcp_trunk *trunk;
|
2018-02-01 12:31:15 +00:00
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! Endpoint properties (see above) */
|
2018-02-01 12:31:15 +00:00
|
|
|
const struct mgcp_endpoint_type *type;
|
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! Last MGCP transmission (in case re-transmission is required) */
|
2018-02-01 12:31:15 +00:00
|
|
|
char *last_trans;
|
|
|
|
|
2018-06-25 22:05:53 +00:00
|
|
|
/*! Last MGCP response (in case re-transmission is required) */
|
2018-02-01 12:31:15 +00:00
|
|
|
char *last_response;
|
|
|
|
|
2018-08-23 14:36:48 +00:00
|
|
|
/*! MGCP_X_OSMO_IGN_* flags from 'X-Osmo-IGN:' header */
|
|
|
|
uint32_t x_osmo_ign;
|
2020-07-06 15:44:12 +00:00
|
|
|
|
|
|
|
/* E1 specific */
|
|
|
|
struct {
|
|
|
|
struct osmo_i460_schan_desc scd;
|
|
|
|
struct osmo_i460_subchan *schan;
|
|
|
|
struct osmo_fsm_inst *trau_sync_fi;
|
|
|
|
struct osmo_trau2rtp_state *trau_rtp_st;
|
|
|
|
uint8_t last_amr_ft;
|
|
|
|
struct mgcp_rtp_codec *last_codec;
|
|
|
|
} e1;
|
|
|
|
|
2018-02-01 12:31:15 +00:00
|
|
|
};
|
|
|
|
|
2020-06-10 12:50:34 +00:00
|
|
|
struct mgcp_endpoint *mgcp_endp_alloc(struct mgcp_trunk *trunk, unsigned int index);
|
2018-02-01 13:30:06 +00:00
|
|
|
void mgcp_endp_release(struct mgcp_endpoint *endp);
|
2020-07-06 15:44:12 +00:00
|
|
|
int mgcp_endp_claim(struct mgcp_endpoint *endp, const char *callid);
|
|
|
|
void mgcp_endp_update(struct mgcp_endpoint *endp);
|
2021-07-14 09:53:49 +00:00
|
|
|
bool mgcp_endp_is_wildcarded(const char *epname);
|
2020-06-02 18:55:34 +00:00
|
|
|
struct mgcp_endpoint *mgcp_endp_by_name_trunk(int *cause, const char *epname,
|
|
|
|
const struct mgcp_trunk *trunk);
|
|
|
|
struct mgcp_endpoint *mgcp_endp_by_name(int *cause, const char *epname,
|
|
|
|
struct mgcp_config *cfg);
|
2020-06-18 10:19:31 +00:00
|
|
|
bool mgcp_endp_avail(struct mgcp_endpoint *endp);
|
2020-09-08 14:50:22 +00:00
|
|
|
void mgcp_endp_add_conn(struct mgcp_endpoint *endp, struct mgcp_conn *conn);
|
|
|
|
void mgcp_endp_remove_conn(struct mgcp_endpoint *endp, struct mgcp_conn *conn);
|