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* input: close socket if no signal link was createdPablo Neira Ayuso2011-07-022-16/+44
| | | | | | | | | If the ->sign_link_up callback does not returns (or if it's NULL) a valid new signal link, we inmediately close the socket. If no signal link is set, there is nothing we can do with this socket, so keeping it open is useless otherwise.
* ipaccess: put the ID_GET logic for the BTS mode into the driverPablo Neira Ayuso2011-07-021-5/+126
| | | | | This patch moves the ID_GET logic from the example file to the ipaccess driver in BTS mode.
* major updates in e1_input callback ops and IPA infrastructuresPablo Neira Ayuso2011-06-306-100/+373
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is a major update of the callback infrastructure, now the e1input_ops looks like the following: struct e1inp_sign_link * (*sign_link_up)(void *unit_info, struct e1inp_line *line, enum e1inp_sign_type type); void (*sign_link_down)(struct e1inp_line *line); int (*sign_link)(struct msgb *msg, struct e1inp_sign_link *link); The sign_link_up and sign_link_down will be used by the A-bis over IP input drivers. The sign_link_up callback is used if we receive a ID_RESP message, in that case, we have to set up the sign link for the corresponding new OML/RSL signal link. The pointer to unit_info provides a data structure that contains the BTS device details if we run as BSC, and the requested device information from the BSC if we run as BTS. The sign_link_up callback must return the new sign_link created. The sign_link_down callback is invoked if the line does down, which means that the counterpart has closed the socket. The sign_link callback is used to handle all RSL/OML messages. I have also added the following callback to the e1inp_driver: + void (*close)(struct e1inp_ts *ts); Which is invoked if you call e1inp_sign_link_destroy(). This callback is used to close the socket that is linked to that timeslot. This is useful for A-bis over IP drivers since sockets are closed if the OML/RSL signalling link is destroyed. As you can notice, I have also added all the ID_RESP parsing into libosmo-abis for both ipaccess and hsl drivers. This patch also contains a rework of the ipa_client_link whose integration with the e1_input infrastructure was broken (the transmission path was broken). This patch also contains more develop examples that act as BSC and BTS for the ipaccess driver. Sorry, I know it would be better to split all these changes into logical pieces but many of them are tightly related. This is under heavy development stage, it's anyway hard to track changes until this becomes more stable.
* ipaccess: use E1INP_SIGN_OML instead of hardcoded 1Pablo Neira Ayuso2011-06-271-1/+1
| | | | This patch is a minor cleanup.
* ipaccess: fix RSL link establishmentPablo Neira Ayuso2011-06-271-0/+5
| | | | | This patch fixes the RSL link establishment which made openBSC port over libosmo-abis crash.
* ipaccess: fix write path for OML socketPablo Neira Ayuso2011-06-261-5/+1Star
| | | | | | We have to use e1i_ts->driver.ipaccess.fd file descriptor to fix the write path. Otherwise, openBSC never delivers replies to OML messages.
* ipaccess: add msg->trx to reduce the size of the openbsc-port patchPablo Neira Ayuso2011-06-261-0/+2
| | | | | | This is a temporary change to keep the openbsc port over libosmo-abis smaller. We'll remove it at some point once we fully transition to the new msg->dst routing attribute.
* e1_input: add abis_sendmsg(...)Pablo Neira Ayuso2011-06-261-26/+4Star
| | | | | | | This patch adds generic abis_sendmsg to send NM messages (both OML and RSL). abis_rsl_sendmsg(...) is basically the same, we'll remove it from libosmo-abis once we can propagate changes to openbsc.
* e1_input: remove unused function ipaccess_connect()Pablo Neira Ayuso2011-06-251-39/+0Star
| | | | This function should live in openbsc instead.
* e1_input: minor API changes to adapt it to openbscPablo Neira Ayuso2011-06-255-41/+45
| | | | | While working on the openbsc over libosmo-abis port, I noticed several API changes that we need to perform for better adaptation.
* ipa-proxy: add A-bis over IP generic proxy commands for VTYPablo Neira Ayuso2011-06-232-1/+690
| | | | | | | | | | | | | | | | | | | | | | | This patch adds VTY commands to route IPA flows. The following example allows to add a new route: $ tests/./ipa_proxy_test & <0000> ipa_proxy_test.c:74 entering main loop $ telnet localhost 4260 ipa-proxy-test> enable ipa-proxy-test# ipa instance input-oml bind 127.0.0.1 tcp port 8888 ipa-proxy-test# ipa instance output-oml connect 127.0.0.1 tcp port 3002 ipa-proxy-test# ipa route instance input-oml streamid 0xfe instance output-oml streamid 0xfe ipa-proxy-test# ipa instance input-rsl bind 127.0.0.1 tcp port 8889 ipa-proxy-test# ipa instance output-rsl connect 127.0.0.1 tcp port 3003 ipa-proxy-test# ipa route instance input-rsl streamid 0xfe instance output-rsl streamid 0xfe I'm using this to initially test this code [*]. [*] note that this requires a minor hackish patch for the src/input/ipaccess.c driver which changes the default OML and RSL ports to listen in 8888 and 8889 instead of the default ports, thus, I can initially test everything from the localhost.
* ipa: add ipa_*_send() to transmit messagesPablo Neira Ayuso2011-06-231-0/+15
| | | | | | | | This patch adds ipa_*_send() functions to transmit messages using the new A-bis over IP infrastructure. This patch completes the transmission path support for the A-bis over IP infrastructure.
* ipa: add ipa_server_peer infrastructurePablo Neira Ayuso2011-06-231-0/+99
| | | | | This patch adds the ipa_server_peer abstraction which provide helpers for the accept path of ipa_server_link.
* ipa: extend ipa_*link_create() to take one generic data pointerPablo Neira Ayuso2011-06-233-7/+12
| | | | | With this patch we can attach generic data to some IPA link. This will be useful for the IPA proxy support.
* ipaccess: remove dead code from ipaccess adriverPablo Neira Ayuso2011-06-211-21/+0Star
| | | | This patch removes some dead code in the ipaccess driver
* ipa: add ipa_server_link abstractionPablo Neira Ayuso2011-06-212-61/+116
| | | | | | | | This patch adds the ipa_server_link which allows to create IPA servers. I have also changed the ipaccess driver to use it. Still missing the port of HSL driver.
* ipa: rename `struct ipa_link' by `struct ipa_client_link'Pablo Neira Ayuso2011-06-213-23/+23
| | | | | And IPA_LINK_STATE_* by IPA_CLIENT_LINK_STATE_* to prepare the addition of the ipa_server_link abstraction.
* ipaccess: initial works to get BTS mode workingPablo Neira Ayuso2011-06-213-8/+71
| | | | | | | | | | | | | | This patch adds the initial support to get BTS mode working with the ipaccess driver. Now, the driver handles IPA ping, pong and id_ack messages internally in BTS modes, and it passes the signalling messages to the client application by invoking the callback line operations. Moreover, with this patch, each IPA link object always has one E1 line object associated. Still HSL BTS-mode remains unimplemented.
* ipaccess: create RSL socket in BTS modePablo Neira Ayuso2011-06-211-5/+25
| | | | | | | | With this patch, we create the RSL socket in BTS mode. This patch also fixes a crash if the RSL socket goes down before we have set the RSL line via OML with the existing code.
* input: use generic ipa_msg_recv() instead of ipaccess_read_msg()Pablo Neira Ayuso2011-06-212-59/+4Star
| | | | | | | | We use the new generic function to receive messages, instead of ipaccess_read_msg. It's a mere renaming, but it's the first step before the rework that will happen soon to avoid calling read() twice.
* hsl: add support for BTS-modePablo Neira Ayuso2011-06-213-6/+30
| | | | This patch adds support for BTS-mode for the hsl input driver.
* e1input: add address as parameter to e1inp_line_update(...)Pablo Neira Ayuso2011-06-216-24/+25
| | | | | This patch adds a new parameter to e1inp_line_update that allows to specific the address for A-bis over IP BSC/BTS.
* input: ipaccess: add preliminary BTS-side for A-bis over IPPablo Neira Ayuso2011-06-143-4/+260
| | | | | | | | | | | | This patch adds the BTS-side for the ip.access driver for A-bis over IP communications. This patch adds one example under test/ so you can test the existing BSC and BTS sides over ip.access. Still incomplete, it requires to allow to register some callback in the BTS side to perform some action once we receive some message. This will come in next updates.
* src: add support for logging infrastructure in libosmo-abisPablo Neira Ayuso2011-06-122-1/+45
| | | | | | This patch uses the new libosmocore logging infrastructure that allows to invoke log_init(&my_log_info) multiple times so we can register categories from libraries and applications.
* include: remove internal definition that are now in libosmocorePablo Neira Ayuso2011-06-096-7/+7
| | | | | Still in one separate patch for libosmocore, but they may become part of mainline soon.
* hsl: use include/abis/ipaccess.hPablo Neira Ayuso2011-06-071-1/+1
| | | | instead of deprecated include/gsm/protocol/ipaccess.h
* e1input: rework generic (virtual and real) E1 line operationsPablo Neira Ayuso2011-06-075-21/+143
| | | | | | | | | | | | | | | | | | | | | | struct e1inp_line_ops { int (*sign_link_up)(struct msgb *msg, struct e1inp_line *line); int (*sign_link)(struct msgb *msg, struct e1inp_sign_link *link); int (*error)(struct msgb *msg, int error); }; The description of the operations is the following: * sign_link_up is invoked if the signalling link becomes up. In A-bis over IP, we have to wait until the other peer identifies itself as a BTS/BSC device, then this function is invoked. This function is not used by ISDN drivers, the signalling link can be set up just after the line is created. * sign_link is called if we receive OML/RSL message. This function is used both by ISDN and A-bis over IP drivers. * error is called if we receive a malformed message. It is used both by ISDN and A-bis over IP drivers.
* e1input: log_set_context(...) should be called from the applicationPablo Neira Ayuso2011-06-071-1/+0Star
| | | | Remove this line, it should be called from the application.
* e1input: fix TRAU frame handlingPablo Neira Ayuso2011-06-071-5/+4Star
| | | | | | | With this patch, we pass TRAU frames to the callback that e1inp_ts_config_trau(...) takes as parameter. Instead of passing it to the line->rx(...) callback. The function e1inp_ts_config_trau(...) should only be used by ISDN drivers.
* src: add libosmo_abis_init(void *ctx) to set the talloc contextPablo Neira Ayuso2011-06-075-6/+39
| | | | | This function is called during initialization, so we can set what's the talloc context for the application and the library.
* src: use include/osmocom/abis instead of include/osmocom/gsm/abisPablo Neira Ayuso2011-06-078-44/+10Star
| | | | | | Harald prefers short paths. This patch also remove commented includes in several files.
* src: use new socket API in libosmocorePablo Neira Ayuso2011-06-074-117/+40Star
| | | | | get rid of internal copy of openbsc/libcommon/socket.c, we now use the new socket API available in libosmocore.
* missing logging header in trau_frame.cPablo Neira Ayuso2011-06-051-0/+1
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* initial commit of libosmo-abisPablo Neira Ayuso2011-06-0511-0/+3898
still many things to get fixed