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osmo-msc/openbsc/include/openbsc/sgsn.h

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[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
#ifndef _SGSN_H
#define _SGSN_H
src: use new library libosmogsm and new path to headers in libosmocore libosmogsm is a new library that is distributed in the libosmocore. Now, openbsc depends on it. This patch gets openbsc with this change. This patch also rewrites all include path to the new osmocom/[gsm|core] Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
2011-03-22 15:47:59 +00:00
#include <osmocom/core/msgb.h>
[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
#include <openbsc/gprs_ns.h>
[GPRS] Properly connect GPRS SM with LIBGTP for PDP context activation * store LLC SAPI as part of PDP ctx * store NSEI + BVCI as part of MM ctx * export gsm48_tx_gsm_act_pdp_acc() and call it from sgsn_libgtp.c * create and use gsm48_tx_gsm_act_pdp_rej for error cases * print SAPI as part of VTY show pdp
2010-05-18 08:35:06 +00:00
#include <openbsc/gprs_sgsn.h>
[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
struct sgsn_config {
/* parsed from config file */
[GPRS] Initial untested support for libgtp libgtp of the OpenGGSN project will allow us to speak the GTPv0/v1 protocol of the interface between SGSN and GGSN. This commit includes code for the main libgtp integration (file descriptor, select loop, timer) as well as code to encode/send a CREATE PDP CONTEXT request.
2010-05-16 22:44:57 +00:00
char *gtp_statedir;
struct sockaddr_in gtp_listenaddr;
[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
/* misc */
struct gprs_ns_inst *nsi;
};
[GPRS] Initial untested support for libgtp libgtp of the OpenGGSN project will allow us to speak the GTPv0/v1 protocol of the interface between SGSN and GGSN. This commit includes code for the main libgtp integration (file descriptor, select loop, timer) as well as code to encode/send a CREATE PDP CONTEXT request.
2010-05-16 22:44:57 +00:00
struct sgsn_instance {
char *config_file;
struct sgsn_config cfg;
/* File descriptor wrappers for LibGTP */
struct bsc_fd gtp_fd0;
struct bsc_fd gtp_fd1c;
struct bsc_fd gtp_fd1u;
/* Timer for libGTP */
struct timer_list gtp_timer;
/* GSN instance for libgtp */
struct gsn_t *gsn;
};
[SGSN] remove the mmctx->sgsn pointer We never want to support multiple sgsn's within one process, so there is no point in passing them around all the time.
2010-05-16 22:53:10 +00:00
extern struct sgsn_instance *sgsn;
[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
/* sgsn_vty.c */
int sgsn_vty_init(void);
int sgsn_parse_config(const char *config_file, struct sgsn_config *cfg);
/* sgsn.c */
/* Main input function for Gb proxy */
int sgsn_rcvmsg(struct msgb *msg, struct gprs_nsvc *nsvc, uint16_t ns_bvci);
[GPRS] Properly connect GPRS SM with LIBGTP for PDP context activation * store LLC SAPI as part of PDP ctx * store NSEI + BVCI as part of MM ctx * export gsm48_tx_gsm_act_pdp_acc() and call it from sgsn_libgtp.c * create and use gsm48_tx_gsm_act_pdp_rej for error cases * print SAPI as part of VTY show pdp
2010-05-18 08:35:06 +00:00
[GPRS] SGSN: properly delete a PDP context after receiving PDP CTX DEACT REQ
2010-05-18 12:32:29 +00:00
struct sgsn_pdp_ctx *sgsn_create_pdp_ctx(struct sgsn_ggsn_ctx *ggsn,
[GPRS] Properly connect GPRS SM with LIBGTP for PDP context activation * store LLC SAPI as part of PDP ctx * store NSEI + BVCI as part of MM ctx * export gsm48_tx_gsm_act_pdp_acc() and call it from sgsn_libgtp.c * create and use gsm48_tx_gsm_act_pdp_rej for error cases * print SAPI as part of VTY show pdp
2010-05-18 08:35:06 +00:00
struct sgsn_mm_ctx *mmctx,
uint16_t nsapi,
struct tlv_parsed *tp);
[GPRS] SGSN: properly delete a PDP context after receiving PDP CTX DEACT REQ
2010-05-18 12:32:29 +00:00
int sgsn_delete_pdp_ctx(struct sgsn_pdp_ctx *pctx);
[GPRS] hand SNDCP N-PDUs to the GTP to the GGSN This so far only works for UNIT-DATA and only if the N-PDU is not fragmented at the SNDCP layer.
2010-06-01 16:28:10 +00:00
/* gprs_sndcp.c */
/* Entry point for the SNSM-ACTIVATE.indication */
int sndcp_sm_activate_ind(struct gprs_llc_lle *lle, uint8_t nsapi);
[GPRS] SNDCP: Implement fragmentation of N-PDUs to SN-PDUs in downlink Using the code of this commit, it was possible to provision GPRS services and access a website from a G1 phone (Qualcomm MSM7k baseband chipset) using a nanoBTS, Osmo-SGSN and OpenGGSN. There is still no fragment re-assembly in the uplink path yet, despite the (untested) code present in the gprs_sndcp.c file
2010-06-03 19:21:21 +00:00
/* Entry point for the SNSM-DEACTIVATE.indication */
int sndcp_sm_deactivate_ind(struct gprs_llc_lle *lle, uint8_t nsapi);
[GPRS] hand SNDCP N-PDUs to the GTP to the GGSN This so far only works for UNIT-DATA and only if the N-PDU is not fragmented at the SNDCP layer.
2010-06-01 16:28:10 +00:00
/* Called by SNDCP when it has received/re-assembled a N-PDU */
[SGSN] Fix segfault when passing re-assembled SN-PDU to GMM sgsn_rx_sndcp_ud_ind() can no longer make the assumption that msgb_bcid() is valid, as this is only true for an un-fragmented SN-PDU. So instead, we now store the RAID in the SNDCP Entity and pass it as an explicit argument to sgsn_rx_sndcp_ud_ind().
2010-07-01 17:56:19 +00:00
int sgsn_rx_sndcp_ud_ind(struct gprs_ra_id *ra_id, int32_t tlli, uint8_t nsapi,
struct msgb *msg, uint32_t npdu_len, uint8_t *npdu);
[GPRS] implement GTP->SNDCP->LLC downlink user-data path This only works for packets that are small enough to not need fragmentation at the SNDCP layer (dns queries, ntp and the like). It requires libgtp built from OpenGGSN dc3744fda045f9fca83de6881176987335a309a8 or later. Plain 0.90 will NOT work. Using this version, I could see bi-directional traffic from various phones going all the way through BTS, OsmoSGSN, OpenGGSN and being routed to and from the real internet. Time to celebrate...
2010-06-03 04:38:38 +00:00
int sndcp_unitdata_req(struct msgb *msg, struct gprs_llc_lle *lle, uint8_t nsapi,
void *mmcontext);
[GPRS] hand SNDCP N-PDUs to the GTP to the GGSN This so far only works for UNIT-DATA and only if the N-PDU is not fragmented at the SNDCP layer.
2010-06-01 16:28:10 +00:00
[gprs] Build the SGSN stand-alone and not as part of bsc_hack Instead of continuing to add more and more functionality to the bsc_hack binary, we should have the new SGSN code run as a separate executable. After this commit we now build a 'osmo_sgsn' executable, using its own osmo_sgsn.cfg config file. However, the SGSN is not yet functional, mainly due to the fact that the BSSGP and GMM code are written with the assumption that there is a msgb->trx->bts and the according 'sturct gsm_bts' data model around - which clearly is no longer the case outside of bsc_hack.
2010-05-01 14:48:27 +00:00
#endif