From 641f7cee5dfe137ecb40c7a461b6235d205fc715 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 17 Jun 2012 23:05:26 +0800 Subject: libosmogb: move files to proper location and fix build --- Makefile.am | 3 +- configure.ac | 4 + include/osmocom/Makefile.am | 4 +- include/osmocom/gprs/Makefile.am | 5 + include/osmocom/gprs/gprs_bssgp.h | 166 ++++ include/osmocom/gprs/gprs_msgb.h | 37 + include/osmocom/gprs/gprs_ns.h | 189 ++++ include/osmocom/gprs/gprs_ns_frgre.h | 6 + include/osmocom/gprs/protocol/Makefile.am | 3 + include/osmocom/gprs/protocol/gsm_08_16.h | 85 ++ include/osmocom/gprs/protocol/gsm_08_18.h | 144 +++ libosmogb.pc.in | 11 + openbsc/include/osmocom/gprs/Makefile.am | 5 - openbsc/include/osmocom/gprs/gprs_bssgp.h | 166 ---- openbsc/include/osmocom/gprs/gprs_msgb.h | 37 - openbsc/include/osmocom/gprs/gprs_ns.h | 189 ---- openbsc/include/osmocom/gprs/gprs_ns_frgre.h | 6 - openbsc/include/osmocom/gprs/protocol/Makefile.am | 3 - openbsc/include/osmocom/gprs/protocol/gsm_08_16.h | 85 -- openbsc/include/osmocom/gprs/protocol/gsm_08_18.h | 144 --- openbsc/src/libgb/Makefile.am | 9 - openbsc/src/libgb/common_vty.c | 90 -- openbsc/src/libgb/common_vty.h | 14 - openbsc/src/libgb/gprs_bssgp.c | 919 ----------------- openbsc/src/libgb/gprs_bssgp_bss.c | 425 -------- openbsc/src/libgb/gprs_bssgp_util.c | 117 --- openbsc/src/libgb/gprs_bssgp_vty.c | 187 ---- openbsc/src/libgb/gprs_ns.c | 1103 --------------------- openbsc/src/libgb/gprs_ns_frgre.c | 310 ------ openbsc/src/libgb/gprs_ns_vty.c | 581 ----------- openbsc/src/libgb/libosmo-gb.map | 59 -- src/Makefile.am | 2 +- src/gb/common_vty.c | 90 ++ src/gb/common_vty.h | 14 + src/gb/gprs_bssgp.c | 919 +++++++++++++++++ src/gb/gprs_bssgp_bss.c | 425 ++++++++ src/gb/gprs_bssgp_util.c | 117 +++ src/gb/gprs_bssgp_vty.c | 187 ++++ src/gb/gprs_ns.c | 1103 +++++++++++++++++++++ src/gb/gprs_ns_frgre.c | 310 ++++++ src/gb/gprs_ns_vty.c | 581 +++++++++++ src/gb/libosmogb.map | 59 ++ 42 files changed, 4460 insertions(+), 4453 deletions(-) create mode 100644 include/osmocom/gprs/Makefile.am create mode 100644 include/osmocom/gprs/gprs_bssgp.h create mode 100644 include/osmocom/gprs/gprs_msgb.h create mode 100644 include/osmocom/gprs/gprs_ns.h create mode 100644 include/osmocom/gprs/gprs_ns_frgre.h create mode 100644 include/osmocom/gprs/protocol/Makefile.am create mode 100644 include/osmocom/gprs/protocol/gsm_08_16.h create mode 100644 include/osmocom/gprs/protocol/gsm_08_18.h create mode 100644 libosmogb.pc.in delete mode 100644 openbsc/include/osmocom/gprs/Makefile.am delete mode 100644 openbsc/include/osmocom/gprs/gprs_bssgp.h delete mode 100644 openbsc/include/osmocom/gprs/gprs_msgb.h delete mode 100644 openbsc/include/osmocom/gprs/gprs_ns.h delete mode 100644 openbsc/include/osmocom/gprs/gprs_ns_frgre.h delete mode 100644 openbsc/include/osmocom/gprs/protocol/Makefile.am delete mode 100644 openbsc/include/osmocom/gprs/protocol/gsm_08_16.h delete mode 100644 openbsc/include/osmocom/gprs/protocol/gsm_08_18.h delete mode 100644 openbsc/src/libgb/Makefile.am delete mode 100644 openbsc/src/libgb/common_vty.c delete mode 100644 openbsc/src/libgb/common_vty.h delete mode 100644 openbsc/src/libgb/gprs_bssgp.c delete mode 100644 openbsc/src/libgb/gprs_bssgp_bss.c delete mode 100644 openbsc/src/libgb/gprs_bssgp_util.c delete mode 100644 openbsc/src/libgb/gprs_bssgp_vty.c delete mode 100644 openbsc/src/libgb/gprs_ns.c delete mode 100644 openbsc/src/libgb/gprs_ns_frgre.c delete mode 100644 openbsc/src/libgb/gprs_ns_vty.c delete mode 100644 openbsc/src/libgb/libosmo-gb.map create mode 100644 src/gb/common_vty.c create mode 100644 src/gb/common_vty.h create mode 100644 src/gb/gprs_bssgp.c create mode 100644 src/gb/gprs_bssgp_bss.c create mode 100644 src/gb/gprs_bssgp_util.c create mode 100644 src/gb/gprs_bssgp_vty.c create mode 100644 src/gb/gprs_ns.c create mode 100644 src/gb/gprs_ns_frgre.c create mode 100644 src/gb/gprs_ns_vty.c create mode 100644 src/gb/libosmogb.map diff --git a/Makefile.am b/Makefile.am index 5a157ce7..9fdb4abb 100644 --- a/Makefile.am +++ b/Makefile.am @@ -5,7 +5,8 @@ INCLUDES = $(all_includes) -I$(top_srcdir)/include SUBDIRS = include src tests utils pkgconfigdir = $(libdir)/pkgconfig -pkgconfig_DATA = libosmocore.pc libosmocodec.pc libosmovty.pc libosmogsm.pc +pkgconfig_DATA = libosmocore.pc libosmocodec.pc libosmovty.pc libosmogsm.pc \ + libosmogb.pc BUILT_SOURCES = $(top_srcdir)/.version $(top_srcdir)/.version: diff --git a/configure.ac b/configure.ac index 977eef9d..484a7ddf 100644 --- a/configure.ac +++ b/configure.ac @@ -146,18 +146,22 @@ AC_OUTPUT( libosmocodec.pc libosmovty.pc libosmogsm.pc + libosmogb.pc include/osmocom/Makefile include/osmocom/vty/Makefile include/osmocom/codec/Makefile include/osmocom/crypt/Makefile include/osmocom/gsm/Makefile include/osmocom/gsm/protocol/Makefile + include/osmocom/gprs/Makefile + include/osmocom/gprs/protocol/Makefile include/osmocom/core/Makefile include/Makefile src/Makefile src/vty/Makefile src/codec/Makefile src/gsm/Makefile + src/gb/Makefile tests/Makefile tests/timer/Makefile tests/sms/Makefile diff --git a/include/osmocom/Makefile.am b/include/osmocom/Makefile.am index 21f4f2d0..bd3b89bd 100644 --- a/include/osmocom/Makefile.am +++ b/include/osmocom/Makefile.am @@ -1,5 +1,5 @@ if ENABLE_VTY -SUBDIRS = vty codec crypt gsm core +SUBDIRS = vty codec crypt gsm gprs core else -SUBDIRS = codec crypt gsm core +SUBDIRS = codec crypt gsm gprs core endif diff --git a/include/osmocom/gprs/Makefile.am b/include/osmocom/gprs/Makefile.am new file mode 100644 index 00000000..d39592c1 --- /dev/null +++ b/include/osmocom/gprs/Makefile.am @@ -0,0 +1,5 @@ +libgb_HEADERS = gprs_bssgp.h gprs_ns.h gprs_ns_frgre.h gprs_msgb.h + +libgbdir = $(includedir)/osmocom/gprs + +SUBDIRS = protocol diff --git a/include/osmocom/gprs/gprs_bssgp.h b/include/osmocom/gprs/gprs_bssgp.h new file mode 100644 index 00000000..949dbdc8 --- /dev/null +++ b/include/osmocom/gprs/gprs_bssgp.h @@ -0,0 +1,166 @@ +#ifndef _GPRS_BSSGP_H +#define _GPRS_BSSGP_H + +#include + +#include +#include + +#include + +/* gprs_bssgp_util.c */ +extern struct gprs_ns_inst *bssgp_nsi; +struct msgb *bssgp_msgb_alloc(void); +const char *bssgp_cause_str(enum gprs_bssgp_cause cause); +/* Transmit a simple response such as BLOCK/UNBLOCK/RESET ACK/NACK */ +int bssgp_tx_simple_bvci(uint8_t pdu_type, uint16_t nsei, + uint16_t bvci, uint16_t ns_bvci); +/* Chapter 10.4.14: Status */ +int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg); + +enum bssgp_prim { + PRIM_BSSGP_DL_UD, + PRIM_BSSGP_UL_UD, + PRIM_BSSGP_PTM_UD, + + PRIM_BSSGP_GMM_SUSPEND, + PRIM_BSSGP_GMM_RESUME, + PRIM_BSSGP_GMM_PAGING, + + PRIM_NM_FLUSH_LL, + PRIM_NM_LLC_DISCARDED, + PRIM_NM_BVC_RESET, + PRIM_NM_BVC_BLOCK, + PRIM_NM_BVC_UNBLOCK, +}; + +struct osmo_bssgp_prim { + struct osmo_prim_hdr oph; + + /* common fields */ + uint16_t nsei; + uint16_t bvci; + uint32_t tlli; + struct tlv_parsed *tp; + struct gprs_ra_id *ra_id; + + /* specific fields */ + union { + struct { + uint8_t *suspend_ref; + } resume; + } u; +}; + +/* gprs_bssgp.c */ + +#define BVC_S_BLOCKED 0x0001 + +/* The per-BTS context that we keep on the SGSN side of the BSSGP link */ +struct bssgp_bvc_ctx { + struct llist_head list; + + struct gprs_ra_id ra_id; /*!< parsed RA ID of the remote BTS */ + uint16_t cell_id; /*!< Cell ID of the remote BTS */ + + /* NSEI and BVCI of underlying Gb link. Together they + * uniquely identify a link to a BTS (5.4.4) */ + uint16_t bvci; + uint16_t nsei; + + uint32_t state; + + struct rate_ctr_group *ctrg; + + /* we might want to add this as a shortcut later, avoiding the NSVC + * lookup for every packet, similar to a routing cache */ + //struct gprs_nsvc *nsvc; +}; +extern struct llist_head bssgp_bvc_ctxts; +/* Find a BTS Context based on parsed RA ID and Cell ID */ +struct bssgp_bvc_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid); +/* Find a BTS context based on BVCI+NSEI tuple */ +struct bssgp_bvc_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei); + +#define BVC_F_BLOCKED 0x0001 + +enum bssgp_ctr { + BSSGP_CTR_PKTS_IN, + BSSGP_CTR_PKTS_OUT, + BSSGP_CTR_BYTES_IN, + BSSGP_CTR_BYTES_OUT, + BSSGP_CTR_BLOCKED, + BSSGP_CTR_DISCARDED, +}; + + +#include +#include + +/* BSSGP-UL-UNITDATA.ind */ +int bssgp_rcvmsg(struct msgb *msg); + +/* BSSGP-DL-UNITDATA.req */ +struct bssgp_lv { + uint16_t len; + uint8_t *v; +}; +/* parameters for BSSGP downlink userdata transmission */ +struct bssgp_dl_ud_par { + uint32_t *tlli; + char *imsi; + uint16_t drx_parms; + /* FIXME: priority */ + struct bssgp_lv ms_ra_cap; + uint8_t qos_profile[3]; +}; +int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime, + struct bssgp_dl_ud_par *dup); + +uint16_t bssgp_parse_cell_id(struct gprs_ra_id *raid, const uint8_t *buf); +int bssgp_create_cell_id(uint8_t *buf, const struct gprs_ra_id *raid, + uint16_t cid); + +/* Wrapper around TLV parser to parse BSSGP IEs */ +static inline int bssgp_tlv_parse(struct tlv_parsed *tp, uint8_t *buf, int len) +{ + return tlv_parse(tp, &tvlv_att_def, buf, len, 0, 0); +} + +/*! \brief BSSGP Paging mode */ +enum bssgp_paging_mode { + BSSGP_PAGING_PS, + BSSGP_PAGING_CS, +}; + +/*! \brief BSSGP Paging scope */ +enum bssgp_paging_scope { + BSSGP_PAGING_BSS_AREA, /*!< all cells in BSS */ + BSSGP_PAGING_LOCATION_AREA, /*!< all cells in LA */ + BSSGP_PAGING_ROUTEING_AREA, /*!< all cells in RA */ + BSSGP_PAGING_BVCI, /*!< one cell */ +}; + +/*! \brief BSSGP paging information */ +struct bssgp_paging_info { + enum bssgp_paging_mode mode; /*!< CS or PS paging */ + enum bssgp_paging_scope scope; /*!< bssgp_paging_scope */ + struct gprs_ra_id raid; /*!< RA Identifier */ + uint16_t bvci; /*!< BVCI */ + char *imsi; /*!< IMSI, if any */ + uint32_t *ptmsi; /*!< P-TMSI, if any */ + uint16_t drx_params; /*!< DRX parameters */ + uint8_t qos[3]; /*!< QoS parameters */ +}; + +/* Send a single GMM-PAGING.req to a given NSEI/NS-BVCI */ +int bssgp_tx_paging(uint16_t nsei, uint16_t ns_bvci, + struct bssgp_paging_info *pinfo); + +/* gprs_bssgp_vty.c */ +int bssgp_vty_init(void); +void bssgp_set_log_ss(int ss); + +int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx); + +#endif /* _GPRS_BSSGP_H */ diff --git a/include/osmocom/gprs/gprs_msgb.h b/include/osmocom/gprs/gprs_msgb.h new file mode 100644 index 00000000..f4c85547 --- /dev/null +++ b/include/osmocom/gprs/gprs_msgb.h @@ -0,0 +1,37 @@ +#ifndef _LIBGB_MSGB_H +#define _LIBGB_MSGB_H + +#include +/* the data structure stored in msgb->cb for libgb apps */ +struct libgb_msgb_cb { + unsigned char *bssgph; + unsigned char *llch; + + /* Cell Identifier */ + unsigned char *bssgp_cell_id; + + /* Identifiers of a BTS, equal to 'struct bssgp_bts_ctx' */ + uint16_t nsei; + uint16_t bvci; + + /* Identifier of a MS (inside BTS), equal to 'struct sgsn_mm_ctx' */ + uint32_t tlli; +} __attribute__((packed)); +#define LIBGB_MSGB_CB(__msgb) ((struct libgb_msgb_cb *)&((__msgb)->cb[0])) +#define msgb_tlli(__x) LIBGB_MSGB_CB(__x)->tlli +#define msgb_nsei(__x) LIBGB_MSGB_CB(__x)->nsei +#define msgb_bvci(__x) LIBGB_MSGB_CB(__x)->bvci +#define msgb_gmmh(__x) (__x)->l3h +#define msgb_bssgph(__x) LIBGB_MSGB_CB(__x)->bssgph +#define msgb_bssgp_len(__x) ((__x)->tail - (uint8_t *)msgb_bssgph(__x)) +#define msgb_bcid(__x) LIBGB_MSGB_CB(__x)->bssgp_cell_id +#define msgb_llch(__x) LIBGB_MSGB_CB(__x)->llch + +/* logging contexts */ +#define GPRS_CTX_NSVC 0 +#define GPRS_CTX_BVC 1 + +#include +int gprs_log_filter_fn(const struct log_context *ctx, + struct log_target *tar); +#endif diff --git a/include/osmocom/gprs/gprs_ns.h b/include/osmocom/gprs/gprs_ns.h new file mode 100644 index 00000000..a7f32b25 --- /dev/null +++ b/include/osmocom/gprs/gprs_ns.h @@ -0,0 +1,189 @@ +#ifndef _GPRS_NS_H +#define _GPRS_NS_H + +#include + +/* Our Implementation */ +#include +#include +#include +#include +#include +#include + +#include + +#define NS_TIMERS_COUNT 7 +#define NS_TIMERS "(tns-block|tns-block-retries|tns-reset|tns-reset-retries|tns-test|tns-alive|tns-alive-retries)" +#define NS_TIMERS_HELP \ + "(un)blocking Timer (Tns-block) timeout\n" \ + "(un)blocking Timer (Tns-block) number of retries\n" \ + "Reset Timer (Tns-reset) timeout\n" \ + "Reset Timer (Tns-reset) number of retries\n" \ + "Test Timer (Tns-test) timeout\n" \ + "Alive Timer (Tns-alive) timeout\n" \ + "Alive Timer (Tns-alive) number of retries\n" + +enum ns_timeout { + NS_TOUT_TNS_BLOCK, + NS_TOUT_TNS_BLOCK_RETRIES, + NS_TOUT_TNS_RESET, + NS_TOUT_TNS_RESET_RETRIES, + NS_TOUT_TNS_TEST, + NS_TOUT_TNS_ALIVE, + NS_TOUT_TNS_ALIVE_RETRIES, +}; + +#define NSE_S_BLOCKED 0x0001 +#define NSE_S_ALIVE 0x0002 + +/*! \brief Osmocom NS link layer types */ +enum gprs_ns_ll { + GPRS_NS_LL_UDP, /*!< NS/UDP/IP */ + GPRS_NS_LL_E1, /*!< NS/E1 */ + GPRS_NS_LL_FR_GRE, /*!< NS/FR/GRE/IP */ +}; + +/*! \brief Osmoco NS events */ +enum gprs_ns_evt { + GPRS_NS_EVT_UNIT_DATA, +}; + +struct gprs_nsvc; +/*! \brief Osmocom GPRS callback function type */ +typedef int gprs_ns_cb_t(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, + struct msgb *msg, uint16_t bvci); + +/*! \brief An instance of the NS protocol stack */ +struct gprs_ns_inst { + /*! \brief callback to the user for incoming UNIT DATA IND */ + gprs_ns_cb_t *cb; + + /*! \brief linked lists of all NSVC in this instance */ + struct llist_head gprs_nsvcs; + + /*! \brief a NSVC object that's needed to deal with packets for + * unknown NSVC */ + struct gprs_nsvc *unknown_nsvc; + + uint16_t timeout[NS_TIMERS_COUNT]; + + /*! \brief NS-over-IP specific bits */ + struct { + struct osmo_fd fd; + uint32_t local_ip; + uint16_t local_port; + } nsip; + /*! \brief NS-over-FR-over-GRE-over-IP specific bits */ + struct { + struct osmo_fd fd; + uint32_t local_ip; + unsigned int enabled:1; + } frgre; +}; + +enum nsvc_timer_mode { + /* standard timers */ + NSVC_TIMER_TNS_TEST, + NSVC_TIMER_TNS_ALIVE, + NSVC_TIMER_TNS_RESET, + _NSVC_TIMER_NR, +}; + +/*! \brief Structure representing a single NS-VC */ +struct gprs_nsvc { + /*! \brief list of NS-VCs within NS Instance */ + struct llist_head list; + /*! \brief pointer to NS Instance */ + struct gprs_ns_inst *nsi; + + uint16_t nsei; /*! \brief end-to-end significance */ + uint16_t nsvci; /*! \brief uniquely identifies NS-VC at SGSN */ + + uint32_t state; + uint32_t remote_state; + + struct osmo_timer_list timer; + enum nsvc_timer_mode timer_mode; + int alive_retries; + + unsigned int remote_end_is_sgsn:1; + unsigned int persistent:1; + + struct rate_ctr_group *ctrg; + + /*! \brief which link-layer are we based on? */ + enum gprs_ns_ll ll; + + union { + struct { + struct sockaddr_in bts_addr; + } ip; + struct { + struct sockaddr_in bts_addr; + } frgre; + }; +}; + +/* Create a new NS protocol instance */ +struct gprs_ns_inst *gprs_ns_instantiate(gprs_ns_cb_t *cb, void *ctx); + +/* Destroy a NS protocol instance */ +void gprs_ns_destroy(struct gprs_ns_inst *nsi); + +/* Listen for incoming GPRS packets via NS/UDP */ +int gprs_ns_nsip_listen(struct gprs_ns_inst *nsi); + +/* Establish a connection (from the BSS) to the SGSN */ +struct gprs_nsvc *gprs_ns_nsip_connect(struct gprs_ns_inst *nsi, + struct sockaddr_in *dest, + uint16_t nsei, uint16_t nsvci); + + +struct sockaddr_in; + +/* main function for higher layers (BSSGP) to send NS messages */ +int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg); + +int gprs_ns_tx_reset(struct gprs_nsvc *nsvc, uint8_t cause); +int gprs_ns_tx_block(struct gprs_nsvc *nsvc, uint8_t cause); +int gprs_ns_tx_unblock(struct gprs_nsvc *nsvc); + +/* Listen for incoming GPRS packets via NS/FR/GRE */ +int gprs_ns_frgre_listen(struct gprs_ns_inst *nsi); + +struct gprs_nsvc *gprs_nsvc_create(struct gprs_ns_inst *nsi, uint16_t nsvci); +void gprs_nsvc_delete(struct gprs_nsvc *nsvc); +struct gprs_nsvc *gprs_nsvc_by_nsei(struct gprs_ns_inst *nsi, uint16_t nsei); +struct gprs_nsvc *gprs_nsvc_by_nsvci(struct gprs_ns_inst *nsi, uint16_t nsvci); + +/* Initiate a RESET procedure (including timer start, ...)*/ +void gprs_nsvc_reset(struct gprs_nsvc *nsvc, uint8_t cause); + +/* Add NS-specific VTY stuff */ +int gprs_ns_vty_init(struct gprs_ns_inst *nsi); + +#define NS_ALLOC_SIZE 2048 +#define NS_ALLOC_HEADROOM 20 +static inline struct msgb *gprs_ns_msgb_alloc(void) +{ + return msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM, "GPRS/NS"); +} + +enum signal_ns { + S_NS_RESET, + S_NS_BLOCK, + S_NS_UNBLOCK, + S_NS_ALIVE_EXP, /* Tns-alive expired more than N times */ +}; + +struct ns_signal_data { + struct gprs_nsvc *nsvc; + uint8_t cause; +}; + +void gprs_ns_set_log_ss(int ss); + +/*! }@ */ + +#endif diff --git a/include/osmocom/gprs/gprs_ns_frgre.h b/include/osmocom/gprs/gprs_ns_frgre.h new file mode 100644 index 00000000..abcd43ff --- /dev/null +++ b/include/osmocom/gprs/gprs_ns_frgre.h @@ -0,0 +1,6 @@ +#ifndef _GPRS_NS_FRGRE_H +#define _GPRS_NS_FRGRE_H + +int gprs_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg); + +#endif diff --git a/include/osmocom/gprs/protocol/Makefile.am b/include/osmocom/gprs/protocol/Makefile.am new file mode 100644 index 00000000..8255a952 --- /dev/null +++ b/include/osmocom/gprs/protocol/Makefile.am @@ -0,0 +1,3 @@ +libgbp_HEADERS = gsm_08_16.h gsm_08_18.h + +libgbpdir = $(includedir)/osmocom/gprs/protocol diff --git a/include/osmocom/gprs/protocol/gsm_08_16.h b/include/osmocom/gprs/protocol/gsm_08_16.h new file mode 100644 index 00000000..4c3eda32 --- /dev/null +++ b/include/osmocom/gprs/protocol/gsm_08_16.h @@ -0,0 +1,85 @@ +#ifndef _OSMO_08_16_H +#define _OSMO_08_16_H + +/* GPRS Networks Service (NS) messages on the Gb interface + * 3GPP TS 08.16 version 8.0.1 Release 1999 / ETSI TS 101 299 V8.0.1 (2002-05) + * 3GPP TS 48.016 version 6.5.0 Release 6 / ETSI TS 148 016 V6.5.0 (2005-11) */ + +#include + +/*! \addtogroup libgb + * @{ + */ + +/*! \file gprs_ns.h */ + +/*! \brief Common header of GPRS NS */ +struct gprs_ns_hdr { + uint8_t pdu_type; /*!< NS PDU type */ + uint8_t data[0]; /*!< variable-length payload */ +} __attribute__((packed)); + +/*! \brief NS PDU Type (TS 08.16, Section 10.3.7, Table 14) */ +enum ns_pdu_type { + NS_PDUT_UNITDATA = 0x00, + NS_PDUT_RESET = 0x02, + NS_PDUT_RESET_ACK = 0x03, + NS_PDUT_BLOCK = 0x04, + NS_PDUT_BLOCK_ACK = 0x05, + NS_PDUT_UNBLOCK = 0x06, + NS_PDUT_UNBLOCK_ACK = 0x07, + NS_PDUT_STATUS = 0x08, + NS_PDUT_ALIVE = 0x0a, + NS_PDUT_ALIVE_ACK = 0x0b, + /* TS 48.016 Section 10.3.7, Table 10.3.7.1 */ + SNS_PDUT_ACK = 0x0c, + SNS_PDUT_ADD = 0x0d, + SNS_PDUT_CHANGE_WEIGHT = 0x0e, + SNS_PDUT_CONFIG = 0x0f, + SNS_PDUT_CONFIG_ACK = 0x10, + SNS_PDUT_DELETE = 0x11, + SNS_PDUT_SIZE = 0x12, + SNS_PDUT_SIZE_ACK = 0x13, +}; + +/*! \brief NS Control IE (TS 08.16, Section 10.3, Table 12) */ +enum ns_ctrl_ie { + NS_IE_CAUSE = 0x00, + NS_IE_VCI = 0x01, + NS_IE_PDU = 0x02, + NS_IE_BVCI = 0x03, + NS_IE_NSEI = 0x04, + /* TS 48.016 Section 10.3, Table 10.3.1 */ + NS_IE_IPv4_LIST = 0x05, + NS_IE_IPv6_LIST = 0x06, + NS_IE_MAX_NR_NSVC = 0x07, + NS_IE_IPv4_EP_NR = 0x08, + NS_IE_IPv6_EP_NR = 0x09, + NS_IE_RESET_FLAG = 0x0a, + NS_IE_IP_ADDR = 0x0b, +}; + +/*! \brief NS Cause (TS 08.16, Section 10.3.2, Table 13) */ +enum ns_cause { + NS_CAUSE_TRANSIT_FAIL = 0x00, + NS_CAUSE_OM_INTERVENTION = 0x01, + NS_CAUSE_EQUIP_FAIL = 0x02, + NS_CAUSE_NSVC_BLOCKED = 0x03, + NS_CAUSE_NSVC_UNKNOWN = 0x04, + NS_CAUSE_BVCI_UNKNOWN = 0x05, + NS_CAUSE_SEM_INCORR_PDU = 0x08, + NS_CAUSE_PDU_INCOMP_PSTATE = 0x0a, + NS_CAUSE_PROTO_ERR_UNSPEC = 0x0b, + NS_CAUSE_INVAL_ESSENT_IE = 0x0c, + NS_CAUSE_MISSING_ESSENT_IE = 0x0d, + /* TS 48.016 Section 10.3.2, Table 10.3.2.1 */ + NS_CAUSE_INVAL_NR_IPv4_EP = 0x0e, + NS_CAUSE_INVAL_NR_IPv6_EP = 0x0f, + NS_CAUSE_INVAL_NR_NS_VC = 0x10, + NS_CAUSE_INVAL_WEIGH = 0x11, + NS_CAUSE_UNKN_IP_EP = 0x12, + NS_CAUSE_UNKN_IP_ADDR = 0x13, + NS_CAUSE_UNKN_IP_TEST_FAILED = 0x14, +}; + +#endif diff --git a/include/osmocom/gprs/protocol/gsm_08_18.h b/include/osmocom/gprs/protocol/gsm_08_18.h new file mode 100644 index 00000000..3a351eaa --- /dev/null +++ b/include/osmocom/gprs/protocol/gsm_08_18.h @@ -0,0 +1,144 @@ +#ifndef _OSMO_08_18_H +#define _OSMO_08_18_H + +#include + +/*! \brief Fixed BVCI definitions (Section 5.4.1) */ +#define BVCI_SIGNALLING 0x0000 +#define BVCI_PTM 0x0001 + +/*! \brief BSSGP PDU types (Section 11.3.26 / Table 11.27) */ +enum bssgp_pdu_type { + /* PDUs between RL and BSSGP SAPs */ + BSSGP_PDUT_DL_UNITDATA = 0x00, + BSSGP_PDUT_UL_UNITDATA = 0x01, + BSSGP_PDUT_RA_CAPABILITY = 0x02, + BSSGP_PDUT_PTM_UNITDATA = 0x03, + /* PDUs between GMM SAPs */ + BSSGP_PDUT_PAGING_PS = 0x06, + BSSGP_PDUT_PAGING_CS = 0x07, + BSSGP_PDUT_RA_CAPA_UDPATE = 0x08, + BSSGP_PDUT_RA_CAPA_UPDATE_ACK = 0x09, + BSSGP_PDUT_RADIO_STATUS = 0x0a, + BSSGP_PDUT_SUSPEND = 0x0b, + BSSGP_PDUT_SUSPEND_ACK = 0x0c, + BSSGP_PDUT_SUSPEND_NACK = 0x0d, + BSSGP_PDUT_RESUME = 0x0e, + BSSGP_PDUT_RESUME_ACK = 0x0f, + BSSGP_PDUT_RESUME_NACK = 0x10, + /* PDus between NM SAPs */ + BSSGP_PDUT_BVC_BLOCK = 0x20, + BSSGP_PDUT_BVC_BLOCK_ACK = 0x21, + BSSGP_PDUT_BVC_RESET = 0x22, + BSSGP_PDUT_BVC_RESET_ACK = 0x23, + BSSGP_PDUT_BVC_UNBLOCK = 0x24, + BSSGP_PDUT_BVC_UNBLOCK_ACK = 0x25, + BSSGP_PDUT_FLOW_CONTROL_BVC = 0x26, + BSSGP_PDUT_FLOW_CONTROL_BVC_ACK = 0x27, + BSSGP_PDUT_FLOW_CONTROL_MS = 0x28, + BSSGP_PDUT_FLOW_CONTROL_MS_ACK = 0x29, + BSSGP_PDUT_FLUSH_LL = 0x2a, + BSSGP_PDUT_FLUSH_LL_ACK = 0x2b, + BSSGP_PDUT_LLC_DISCARD = 0x2c, + BSSGP_PDUT_SGSN_INVOKE_TRACE = 0x40, + BSSGP_PDUT_STATUS = 0x41, + /* PDUs between PFM SAP's */ + BSSGP_PDUT_DOWNLOAD_BSS_PFC = 0x50, + BSSGP_PDUT_CREATE_BSS_PFC = 0x51, + BSSGP_PDUT_CREATE_BSS_PFC_ACK = 0x52, + BSSGP_PDUT_CREATE_BSS_PFC_NACK = 0x53, + BSSGP_PDUT_MODIFY_BSS_PFC = 0x54, + BSSGP_PDUT_MODIFY_BSS_PFC_ACK = 0x55, + BSSGP_PDUT_DELETE_BSS_PFC = 0x56, + BSSGP_PDUT_DELETE_BSS_PFC_ACK = 0x57, +}; + +/*! \brief BSSGP User-Data header (Section 10.2.1 and 10.2.2) */ +struct bssgp_ud_hdr { + uint8_t pdu_type; /*!< BSSGP PDU type */ + uint32_t tlli; /*!< Temporary Link-Local Identifier */ + uint8_t qos_profile[3]; /*!< QoS profile */ + uint8_t data[0]; /* optional/conditional IEs as TLVs */ +} __attribute__((packed)); + +/*! \brief BSSGP normal header */ +struct bssgp_normal_hdr { + uint8_t pdu_type; /*!< BSSGP PDU type */ + uint8_t data[0]; /*!< optional/conditional IEs as TLVs */ +}; + +/*! \brief BSSGP Information Element Identifiers */ +enum bssgp_iei_type { + BSSGP_IE_ALIGNMENT = 0x00, + BSSGP_IE_BMAX_DEFAULT_MS = 0x01, + BSSGP_IE_BSS_AREA_ID = 0x02, + BSSGP_IE_BUCKET_LEAK_RATE = 0x03, + BSSGP_IE_BVCI = 0x04, + BSSGP_IE_BVC_BUCKET_SIZE = 0x05, + BSSGP_IE_BVC_MEASUREMENT = 0x06, + BSSGP_IE_CAUSE = 0x07, + BSSGP_IE_CELL_ID = 0x08, + BSSGP_IE_CHAN_NEEDED = 0x09, + BSSGP_IE_DRX_PARAMS = 0x0a, + BSSGP_IE_EMLPP_PRIO = 0x0b, + BSSGP_IE_FLUSH_ACTION = 0x0c, + BSSGP_IE_IMSI = 0x0d, + BSSGP_IE_LLC_PDU = 0x0e, + BSSGP_IE_LLC_FRAMES_DISCARDED = 0x0f, + BSSGP_IE_LOCATION_AREA = 0x10, + BSSGP_IE_MOBILE_ID = 0x11, + BSSGP_IE_MS_BUCKET_SIZE = 0x12, + BSSGP_IE_MS_RADIO_ACCESS_CAP = 0x13, + BSSGP_IE_OMC_ID = 0x14, + BSSGP_IE_PDU_IN_ERROR = 0x15, + BSSGP_IE_PDU_LIFETIME = 0x16, + BSSGP_IE_PRIORITY = 0x17, + BSSGP_IE_QOS_PROFILE = 0x18, + BSSGP_IE_RADIO_CAUSE = 0x19, + BSSGP_IE_RA_CAP_UPD_CAUSE = 0x1a, + BSSGP_IE_ROUTEING_AREA = 0x1b, + BSSGP_IE_R_DEFAULT_MS = 0x1c, + BSSGP_IE_SUSPEND_REF_NR = 0x1d, + BSSGP_IE_TAG = 0x1e, + BSSGP_IE_TLLI = 0x1f, + BSSGP_IE_TMSI = 0x20, + BSSGP_IE_TRACE_REFERENC = 0x21, + BSSGP_IE_TRACE_TYPE = 0x22, + BSSGP_IE_TRANSACTION_ID = 0x23, + BSSGP_IE_TRIGGER_ID = 0x24, + BSSGP_IE_NUM_OCT_AFF = 0x25, + BSSGP_IE_LSA_ID_LIST = 0x26, + BSSGP_IE_LSA_INFORMATION = 0x27, + BSSGP_IE_PACKET_FLOW_ID = 0x28, + BSSGP_IE_PACKET_FLOW_TIMER = 0x29, + BSSGP_IE_AGG_BSS_QOS_PROFILE = 0x3a, + BSSGP_IE_FEATURE_BITMAP = 0x3b, + BSSGP_IE_BUCKET_FULL_RATIO = 0x3c, + BSSGP_IE_SERVICE_UTRAN_CCO = 0x3d, +}; + +/*! \brief Cause coding (Section 11.3.8 / Table 11.10) */ +enum gprs_bssgp_cause { + BSSGP_CAUSE_PROC_OVERLOAD = 0x00, + BSSGP_CAUSE_EQUIP_FAIL = 0x01, + BSSGP_CAUSE_TRASIT_NET_FAIL = 0x02, + BSSGP_CAUSE_CAPA_GREATER_0KPBS = 0x03, + BSSGP_CAUSE_UNKNOWN_MS = 0x04, + BSSGP_CAUSE_UNKNOWN_BVCI = 0x05, + BSSGP_CAUSE_CELL_TRAF_CONG = 0x06, + BSSGP_CAUSE_SGSN_CONG = 0x07, + BSSGP_CAUSE_OML_INTERV = 0x08, + BSSGP_CAUSE_BVCI_BLOCKED = 0x09, + BSSGP_CAUSE_PFC_CREATE_FAIL = 0x0a, + BSSGP_CAUSE_SEM_INCORR_PDU = 0x20, + BSSGP_CAUSE_INV_MAND_INF = 0x21, + BSSGP_CAUSE_MISSING_MAND_IE = 0x22, + BSSGP_CAUSE_MISSING_COND_IE = 0x23, + BSSGP_CAUSE_UNEXP_COND_IE = 0x24, + BSSGP_CAUSE_COND_IE_ERR = 0x25, + BSSGP_CAUSE_PDU_INCOMP_STATE = 0x26, + BSSGP_CAUSE_PROTO_ERR_UNSPEC = 0x27, + BSSGP_CAUSE_PDU_INCOMP_FEAT = 0x28, +}; + +#endif diff --git a/libosmogb.pc.in b/libosmogb.pc.in new file mode 100644 index 00000000..cbfa631b --- /dev/null +++ b/libosmogb.pc.in @@ -0,0 +1,11 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: Osmocom GPRS Gb Library +Description: Osmocom GPRS Gb Interface (NS/BSSGP) Library +Version: @VERSION@ +Libs: -L${libdir} -losmogb +Cflags: -I${includedir}/ + diff --git a/openbsc/include/osmocom/gprs/Makefile.am b/openbsc/include/osmocom/gprs/Makefile.am deleted file mode 100644 index d39592c1..00000000 --- a/openbsc/include/osmocom/gprs/Makefile.am +++ /dev/null @@ -1,5 +0,0 @@ -libgb_HEADERS = gprs_bssgp.h gprs_ns.h gprs_ns_frgre.h gprs_msgb.h - -libgbdir = $(includedir)/osmocom/gprs - -SUBDIRS = protocol diff --git a/openbsc/include/osmocom/gprs/gprs_bssgp.h b/openbsc/include/osmocom/gprs/gprs_bssgp.h deleted file mode 100644 index 949dbdc8..00000000 --- a/openbsc/include/osmocom/gprs/gprs_bssgp.h +++ /dev/null @@ -1,166 +0,0 @@ -#ifndef _GPRS_BSSGP_H -#define _GPRS_BSSGP_H - -#include - -#include -#include - -#include - -/* gprs_bssgp_util.c */ -extern struct gprs_ns_inst *bssgp_nsi; -struct msgb *bssgp_msgb_alloc(void); -const char *bssgp_cause_str(enum gprs_bssgp_cause cause); -/* Transmit a simple response such as BLOCK/UNBLOCK/RESET ACK/NACK */ -int bssgp_tx_simple_bvci(uint8_t pdu_type, uint16_t nsei, - uint16_t bvci, uint16_t ns_bvci); -/* Chapter 10.4.14: Status */ -int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg); - -enum bssgp_prim { - PRIM_BSSGP_DL_UD, - PRIM_BSSGP_UL_UD, - PRIM_BSSGP_PTM_UD, - - PRIM_BSSGP_GMM_SUSPEND, - PRIM_BSSGP_GMM_RESUME, - PRIM_BSSGP_GMM_PAGING, - - PRIM_NM_FLUSH_LL, - PRIM_NM_LLC_DISCARDED, - PRIM_NM_BVC_RESET, - PRIM_NM_BVC_BLOCK, - PRIM_NM_BVC_UNBLOCK, -}; - -struct osmo_bssgp_prim { - struct osmo_prim_hdr oph; - - /* common fields */ - uint16_t nsei; - uint16_t bvci; - uint32_t tlli; - struct tlv_parsed *tp; - struct gprs_ra_id *ra_id; - - /* specific fields */ - union { - struct { - uint8_t *suspend_ref; - } resume; - } u; -}; - -/* gprs_bssgp.c */ - -#define BVC_S_BLOCKED 0x0001 - -/* The per-BTS context that we keep on the SGSN side of the BSSGP link */ -struct bssgp_bvc_ctx { - struct llist_head list; - - struct gprs_ra_id ra_id; /*!< parsed RA ID of the remote BTS */ - uint16_t cell_id; /*!< Cell ID of the remote BTS */ - - /* NSEI and BVCI of underlying Gb link. Together they - * uniquely identify a link to a BTS (5.4.4) */ - uint16_t bvci; - uint16_t nsei; - - uint32_t state; - - struct rate_ctr_group *ctrg; - - /* we might want to add this as a shortcut later, avoiding the NSVC - * lookup for every packet, similar to a routing cache */ - //struct gprs_nsvc *nsvc; -}; -extern struct llist_head bssgp_bvc_ctxts; -/* Find a BTS Context based on parsed RA ID and Cell ID */ -struct bssgp_bvc_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid); -/* Find a BTS context based on BVCI+NSEI tuple */ -struct bssgp_bvc_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei); - -#define BVC_F_BLOCKED 0x0001 - -enum bssgp_ctr { - BSSGP_CTR_PKTS_IN, - BSSGP_CTR_PKTS_OUT, - BSSGP_CTR_BYTES_IN, - BSSGP_CTR_BYTES_OUT, - BSSGP_CTR_BLOCKED, - BSSGP_CTR_DISCARDED, -}; - - -#include -#include - -/* BSSGP-UL-UNITDATA.ind */ -int bssgp_rcvmsg(struct msgb *msg); - -/* BSSGP-DL-UNITDATA.req */ -struct bssgp_lv { - uint16_t len; - uint8_t *v; -}; -/* parameters for BSSGP downlink userdata transmission */ -struct bssgp_dl_ud_par { - uint32_t *tlli; - char *imsi; - uint16_t drx_parms; - /* FIXME: priority */ - struct bssgp_lv ms_ra_cap; - uint8_t qos_profile[3]; -}; -int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime, - struct bssgp_dl_ud_par *dup); - -uint16_t bssgp_parse_cell_id(struct gprs_ra_id *raid, const uint8_t *buf); -int bssgp_create_cell_id(uint8_t *buf, const struct gprs_ra_id *raid, - uint16_t cid); - -/* Wrapper around TLV parser to parse BSSGP IEs */ -static inline int bssgp_tlv_parse(struct tlv_parsed *tp, uint8_t *buf, int len) -{ - return tlv_parse(tp, &tvlv_att_def, buf, len, 0, 0); -} - -/*! \brief BSSGP Paging mode */ -enum bssgp_paging_mode { - BSSGP_PAGING_PS, - BSSGP_PAGING_CS, -}; - -/*! \brief BSSGP Paging scope */ -enum bssgp_paging_scope { - BSSGP_PAGING_BSS_AREA, /*!< all cells in BSS */ - BSSGP_PAGING_LOCATION_AREA, /*!< all cells in LA */ - BSSGP_PAGING_ROUTEING_AREA, /*!< all cells in RA */ - BSSGP_PAGING_BVCI, /*!< one cell */ -}; - -/*! \brief BSSGP paging information */ -struct bssgp_paging_info { - enum bssgp_paging_mode mode; /*!< CS or PS paging */ - enum bssgp_paging_scope scope; /*!< bssgp_paging_scope */ - struct gprs_ra_id raid; /*!< RA Identifier */ - uint16_t bvci; /*!< BVCI */ - char *imsi; /*!< IMSI, if any */ - uint32_t *ptmsi; /*!< P-TMSI, if any */ - uint16_t drx_params; /*!< DRX parameters */ - uint8_t qos[3]; /*!< QoS parameters */ -}; - -/* Send a single GMM-PAGING.req to a given NSEI/NS-BVCI */ -int bssgp_tx_paging(uint16_t nsei, uint16_t ns_bvci, - struct bssgp_paging_info *pinfo); - -/* gprs_bssgp_vty.c */ -int bssgp_vty_init(void); -void bssgp_set_log_ss(int ss); - -int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx); - -#endif /* _GPRS_BSSGP_H */ diff --git a/openbsc/include/osmocom/gprs/gprs_msgb.h b/openbsc/include/osmocom/gprs/gprs_msgb.h deleted file mode 100644 index f4c85547..00000000 --- a/openbsc/include/osmocom/gprs/gprs_msgb.h +++ /dev/null @@ -1,37 +0,0 @@ -#ifndef _LIBGB_MSGB_H -#define _LIBGB_MSGB_H - -#include -/* the data structure stored in msgb->cb for libgb apps */ -struct libgb_msgb_cb { - unsigned char *bssgph; - unsigned char *llch; - - /* Cell Identifier */ - unsigned char *bssgp_cell_id; - - /* Identifiers of a BTS, equal to 'struct bssgp_bts_ctx' */ - uint16_t nsei; - uint16_t bvci; - - /* Identifier of a MS (inside BTS), equal to 'struct sgsn_mm_ctx' */ - uint32_t tlli; -} __attribute__((packed)); -#define LIBGB_MSGB_CB(__msgb) ((struct libgb_msgb_cb *)&((__msgb)->cb[0])) -#define msgb_tlli(__x) LIBGB_MSGB_CB(__x)->tlli -#define msgb_nsei(__x) LIBGB_MSGB_CB(__x)->nsei -#define msgb_bvci(__x) LIBGB_MSGB_CB(__x)->bvci -#define msgb_gmmh(__x) (__x)->l3h -#define msgb_bssgph(__x) LIBGB_MSGB_CB(__x)->bssgph -#define msgb_bssgp_len(__x) ((__x)->tail - (uint8_t *)msgb_bssgph(__x)) -#define msgb_bcid(__x) LIBGB_MSGB_CB(__x)->bssgp_cell_id -#define msgb_llch(__x) LIBGB_MSGB_CB(__x)->llch - -/* logging contexts */ -#define GPRS_CTX_NSVC 0 -#define GPRS_CTX_BVC 1 - -#include -int gprs_log_filter_fn(const struct log_context *ctx, - struct log_target *tar); -#endif diff --git a/openbsc/include/osmocom/gprs/gprs_ns.h b/openbsc/include/osmocom/gprs/gprs_ns.h deleted file mode 100644 index a7f32b25..00000000 --- a/openbsc/include/osmocom/gprs/gprs_ns.h +++ /dev/null @@ -1,189 +0,0 @@ -#ifndef _GPRS_NS_H -#define _GPRS_NS_H - -#include - -/* Our Implementation */ -#include -#include -#include -#include -#include -#include - -#include - -#define NS_TIMERS_COUNT 7 -#define NS_TIMERS "(tns-block|tns-block-retries|tns-reset|tns-reset-retries|tns-test|tns-alive|tns-alive-retries)" -#define NS_TIMERS_HELP \ - "(un)blocking Timer (Tns-block) timeout\n" \ - "(un)blocking Timer (Tns-block) number of retries\n" \ - "Reset Timer (Tns-reset) timeout\n" \ - "Reset Timer (Tns-reset) number of retries\n" \ - "Test Timer (Tns-test) timeout\n" \ - "Alive Timer (Tns-alive) timeout\n" \ - "Alive Timer (Tns-alive) number of retries\n" - -enum ns_timeout { - NS_TOUT_TNS_BLOCK, - NS_TOUT_TNS_BLOCK_RETRIES, - NS_TOUT_TNS_RESET, - NS_TOUT_TNS_RESET_RETRIES, - NS_TOUT_TNS_TEST, - NS_TOUT_TNS_ALIVE, - NS_TOUT_TNS_ALIVE_RETRIES, -}; - -#define NSE_S_BLOCKED 0x0001 -#define NSE_S_ALIVE 0x0002 - -/*! \brief Osmocom NS link layer types */ -enum gprs_ns_ll { - GPRS_NS_LL_UDP, /*!< NS/UDP/IP */ - GPRS_NS_LL_E1, /*!< NS/E1 */ - GPRS_NS_LL_FR_GRE, /*!< NS/FR/GRE/IP */ -}; - -/*! \brief Osmoco NS events */ -enum gprs_ns_evt { - GPRS_NS_EVT_UNIT_DATA, -}; - -struct gprs_nsvc; -/*! \brief Osmocom GPRS callback function type */ -typedef int gprs_ns_cb_t(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, - struct msgb *msg, uint16_t bvci); - -/*! \brief An instance of the NS protocol stack */ -struct gprs_ns_inst { - /*! \brief callback to the user for incoming UNIT DATA IND */ - gprs_ns_cb_t *cb; - - /*! \brief linked lists of all NSVC in this instance */ - struct llist_head gprs_nsvcs; - - /*! \brief a NSVC object that's needed to deal with packets for - * unknown NSVC */ - struct gprs_nsvc *unknown_nsvc; - - uint16_t timeout[NS_TIMERS_COUNT]; - - /*! \brief NS-over-IP specific bits */ - struct { - struct osmo_fd fd; - uint32_t local_ip; - uint16_t local_port; - } nsip; - /*! \brief NS-over-FR-over-GRE-over-IP specific bits */ - struct { - struct osmo_fd fd; - uint32_t local_ip; - unsigned int enabled:1; - } frgre; -}; - -enum nsvc_timer_mode { - /* standard timers */ - NSVC_TIMER_TNS_TEST, - NSVC_TIMER_TNS_ALIVE, - NSVC_TIMER_TNS_RESET, - _NSVC_TIMER_NR, -}; - -/*! \brief Structure representing a single NS-VC */ -struct gprs_nsvc { - /*! \brief list of NS-VCs within NS Instance */ - struct llist_head list; - /*! \brief pointer to NS Instance */ - struct gprs_ns_inst *nsi; - - uint16_t nsei; /*! \brief end-to-end significance */ - uint16_t nsvci; /*! \brief uniquely identifies NS-VC at SGSN */ - - uint32_t state; - uint32_t remote_state; - - struct osmo_timer_list timer; - enum nsvc_timer_mode timer_mode; - int alive_retries; - - unsigned int remote_end_is_sgsn:1; - unsigned int persistent:1; - - struct rate_ctr_group *ctrg; - - /*! \brief which link-layer are we based on? */ - enum gprs_ns_ll ll; - - union { - struct { - struct sockaddr_in bts_addr; - } ip; - struct { - struct sockaddr_in bts_addr; - } frgre; - }; -}; - -/* Create a new NS protocol instance */ -struct gprs_ns_inst *gprs_ns_instantiate(gprs_ns_cb_t *cb, void *ctx); - -/* Destroy a NS protocol instance */ -void gprs_ns_destroy(struct gprs_ns_inst *nsi); - -/* Listen for incoming GPRS packets via NS/UDP */ -int gprs_ns_nsip_listen(struct gprs_ns_inst *nsi); - -/* Establish a connection (from the BSS) to the SGSN */ -struct gprs_nsvc *gprs_ns_nsip_connect(struct gprs_ns_inst *nsi, - struct sockaddr_in *dest, - uint16_t nsei, uint16_t nsvci); - - -struct sockaddr_in; - -/* main function for higher layers (BSSGP) to send NS messages */ -int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg); - -int gprs_ns_tx_reset(struct gprs_nsvc *nsvc, uint8_t cause); -int gprs_ns_tx_block(struct gprs_nsvc *nsvc, uint8_t cause); -int gprs_ns_tx_unblock(struct gprs_nsvc *nsvc); - -/* Listen for incoming GPRS packets via NS/FR/GRE */ -int gprs_ns_frgre_listen(struct gprs_ns_inst *nsi); - -struct gprs_nsvc *gprs_nsvc_create(struct gprs_ns_inst *nsi, uint16_t nsvci); -void gprs_nsvc_delete(struct gprs_nsvc *nsvc); -struct gprs_nsvc *gprs_nsvc_by_nsei(struct gprs_ns_inst *nsi, uint16_t nsei); -struct gprs_nsvc *gprs_nsvc_by_nsvci(struct gprs_ns_inst *nsi, uint16_t nsvci); - -/* Initiate a RESET procedure (including timer start, ...)*/ -void gprs_nsvc_reset(struct gprs_nsvc *nsvc, uint8_t cause); - -/* Add NS-specific VTY stuff */ -int gprs_ns_vty_init(struct gprs_ns_inst *nsi); - -#define NS_ALLOC_SIZE 2048 -#define NS_ALLOC_HEADROOM 20 -static inline struct msgb *gprs_ns_msgb_alloc(void) -{ - return msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM, "GPRS/NS"); -} - -enum signal_ns { - S_NS_RESET, - S_NS_BLOCK, - S_NS_UNBLOCK, - S_NS_ALIVE_EXP, /* Tns-alive expired more than N times */ -}; - -struct ns_signal_data { - struct gprs_nsvc *nsvc; - uint8_t cause; -}; - -void gprs_ns_set_log_ss(int ss); - -/*! }@ */ - -#endif diff --git a/openbsc/include/osmocom/gprs/gprs_ns_frgre.h b/openbsc/include/osmocom/gprs/gprs_ns_frgre.h deleted file mode 100644 index abcd43ff..00000000 --- a/openbsc/include/osmocom/gprs/gprs_ns_frgre.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _GPRS_NS_FRGRE_H -#define _GPRS_NS_FRGRE_H - -int gprs_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg); - -#endif diff --git a/openbsc/include/osmocom/gprs/protocol/Makefile.am b/openbsc/include/osmocom/gprs/protocol/Makefile.am deleted file mode 100644 index 8255a952..00000000 --- a/openbsc/include/osmocom/gprs/protocol/Makefile.am +++ /dev/null @@ -1,3 +0,0 @@ -libgbp_HEADERS = gsm_08_16.h gsm_08_18.h - -libgbpdir = $(includedir)/osmocom/gprs/protocol diff --git a/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h b/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h deleted file mode 100644 index 4c3eda32..00000000 --- a/openbsc/include/osmocom/gprs/protocol/gsm_08_16.h +++ /dev/null @@ -1,85 +0,0 @@ -#ifndef _OSMO_08_16_H -#define _OSMO_08_16_H - -/* GPRS Networks Service (NS) messages on the Gb interface - * 3GPP TS 08.16 version 8.0.1 Release 1999 / ETSI TS 101 299 V8.0.1 (2002-05) - * 3GPP TS 48.016 version 6.5.0 Release 6 / ETSI TS 148 016 V6.5.0 (2005-11) */ - -#include - -/*! \addtogroup libgb - * @{ - */ - -/*! \file gprs_ns.h */ - -/*! \brief Common header of GPRS NS */ -struct gprs_ns_hdr { - uint8_t pdu_type; /*!< NS PDU type */ - uint8_t data[0]; /*!< variable-length payload */ -} __attribute__((packed)); - -/*! \brief NS PDU Type (TS 08.16, Section 10.3.7, Table 14) */ -enum ns_pdu_type { - NS_PDUT_UNITDATA = 0x00, - NS_PDUT_RESET = 0x02, - NS_PDUT_RESET_ACK = 0x03, - NS_PDUT_BLOCK = 0x04, - NS_PDUT_BLOCK_ACK = 0x05, - NS_PDUT_UNBLOCK = 0x06, - NS_PDUT_UNBLOCK_ACK = 0x07, - NS_PDUT_STATUS = 0x08, - NS_PDUT_ALIVE = 0x0a, - NS_PDUT_ALIVE_ACK = 0x0b, - /* TS 48.016 Section 10.3.7, Table 10.3.7.1 */ - SNS_PDUT_ACK = 0x0c, - SNS_PDUT_ADD = 0x0d, - SNS_PDUT_CHANGE_WEIGHT = 0x0e, - SNS_PDUT_CONFIG = 0x0f, - SNS_PDUT_CONFIG_ACK = 0x10, - SNS_PDUT_DELETE = 0x11, - SNS_PDUT_SIZE = 0x12, - SNS_PDUT_SIZE_ACK = 0x13, -}; - -/*! \brief NS Control IE (TS 08.16, Section 10.3, Table 12) */ -enum ns_ctrl_ie { - NS_IE_CAUSE = 0x00, - NS_IE_VCI = 0x01, - NS_IE_PDU = 0x02, - NS_IE_BVCI = 0x03, - NS_IE_NSEI = 0x04, - /* TS 48.016 Section 10.3, Table 10.3.1 */ - NS_IE_IPv4_LIST = 0x05, - NS_IE_IPv6_LIST = 0x06, - NS_IE_MAX_NR_NSVC = 0x07, - NS_IE_IPv4_EP_NR = 0x08, - NS_IE_IPv6_EP_NR = 0x09, - NS_IE_RESET_FLAG = 0x0a, - NS_IE_IP_ADDR = 0x0b, -}; - -/*! \brief NS Cause (TS 08.16, Section 10.3.2, Table 13) */ -enum ns_cause { - NS_CAUSE_TRANSIT_FAIL = 0x00, - NS_CAUSE_OM_INTERVENTION = 0x01, - NS_CAUSE_EQUIP_FAIL = 0x02, - NS_CAUSE_NSVC_BLOCKED = 0x03, - NS_CAUSE_NSVC_UNKNOWN = 0x04, - NS_CAUSE_BVCI_UNKNOWN = 0x05, - NS_CAUSE_SEM_INCORR_PDU = 0x08, - NS_CAUSE_PDU_INCOMP_PSTATE = 0x0a, - NS_CAUSE_PROTO_ERR_UNSPEC = 0x0b, - NS_CAUSE_INVAL_ESSENT_IE = 0x0c, - NS_CAUSE_MISSING_ESSENT_IE = 0x0d, - /* TS 48.016 Section 10.3.2, Table 10.3.2.1 */ - NS_CAUSE_INVAL_NR_IPv4_EP = 0x0e, - NS_CAUSE_INVAL_NR_IPv6_EP = 0x0f, - NS_CAUSE_INVAL_NR_NS_VC = 0x10, - NS_CAUSE_INVAL_WEIGH = 0x11, - NS_CAUSE_UNKN_IP_EP = 0x12, - NS_CAUSE_UNKN_IP_ADDR = 0x13, - NS_CAUSE_UNKN_IP_TEST_FAILED = 0x14, -}; - -#endif diff --git a/openbsc/include/osmocom/gprs/protocol/gsm_08_18.h b/openbsc/include/osmocom/gprs/protocol/gsm_08_18.h deleted file mode 100644 index 3a351eaa..00000000 --- a/openbsc/include/osmocom/gprs/protocol/gsm_08_18.h +++ /dev/null @@ -1,144 +0,0 @@ -#ifndef _OSMO_08_18_H -#define _OSMO_08_18_H - -#include - -/*! \brief Fixed BVCI definitions (Section 5.4.1) */ -#define BVCI_SIGNALLING 0x0000 -#define BVCI_PTM 0x0001 - -/*! \brief BSSGP PDU types (Section 11.3.26 / Table 11.27) */ -enum bssgp_pdu_type { - /* PDUs between RL and BSSGP SAPs */ - BSSGP_PDUT_DL_UNITDATA = 0x00, - BSSGP_PDUT_UL_UNITDATA = 0x01, - BSSGP_PDUT_RA_CAPABILITY = 0x02, - BSSGP_PDUT_PTM_UNITDATA = 0x03, - /* PDUs between GMM SAPs */ - BSSGP_PDUT_PAGING_PS = 0x06, - BSSGP_PDUT_PAGING_CS = 0x07, - BSSGP_PDUT_RA_CAPA_UDPATE = 0x08, - BSSGP_PDUT_RA_CAPA_UPDATE_ACK = 0x09, - BSSGP_PDUT_RADIO_STATUS = 0x0a, - BSSGP_PDUT_SUSPEND = 0x0b, - BSSGP_PDUT_SUSPEND_ACK = 0x0c, - BSSGP_PDUT_SUSPEND_NACK = 0x0d, - BSSGP_PDUT_RESUME = 0x0e, - BSSGP_PDUT_RESUME_ACK = 0x0f, - BSSGP_PDUT_RESUME_NACK = 0x10, - /* PDus between NM SAPs */ - BSSGP_PDUT_BVC_BLOCK = 0x20, - BSSGP_PDUT_BVC_BLOCK_ACK = 0x21, - BSSGP_PDUT_BVC_RESET = 0x22, - BSSGP_PDUT_BVC_RESET_ACK = 0x23, - BSSGP_PDUT_BVC_UNBLOCK = 0x24, - BSSGP_PDUT_BVC_UNBLOCK_ACK = 0x25, - BSSGP_PDUT_FLOW_CONTROL_BVC = 0x26, - BSSGP_PDUT_FLOW_CONTROL_BVC_ACK = 0x27, - BSSGP_PDUT_FLOW_CONTROL_MS = 0x28, - BSSGP_PDUT_FLOW_CONTROL_MS_ACK = 0x29, - BSSGP_PDUT_FLUSH_LL = 0x2a, - BSSGP_PDUT_FLUSH_LL_ACK = 0x2b, - BSSGP_PDUT_LLC_DISCARD = 0x2c, - BSSGP_PDUT_SGSN_INVOKE_TRACE = 0x40, - BSSGP_PDUT_STATUS = 0x41, - /* PDUs between PFM SAP's */ - BSSGP_PDUT_DOWNLOAD_BSS_PFC = 0x50, - BSSGP_PDUT_CREATE_BSS_PFC = 0x51, - BSSGP_PDUT_CREATE_BSS_PFC_ACK = 0x52, - BSSGP_PDUT_CREATE_BSS_PFC_NACK = 0x53, - BSSGP_PDUT_MODIFY_BSS_PFC = 0x54, - BSSGP_PDUT_MODIFY_BSS_PFC_ACK = 0x55, - BSSGP_PDUT_DELETE_BSS_PFC = 0x56, - BSSGP_PDUT_DELETE_BSS_PFC_ACK = 0x57, -}; - -/*! \brief BSSGP User-Data header (Section 10.2.1 and 10.2.2) */ -struct bssgp_ud_hdr { - uint8_t pdu_type; /*!< BSSGP PDU type */ - uint32_t tlli; /*!< Temporary Link-Local Identifier */ - uint8_t qos_profile[3]; /*!< QoS profile */ - uint8_t data[0]; /* optional/conditional IEs as TLVs */ -} __attribute__((packed)); - -/*! \brief BSSGP normal header */ -struct bssgp_normal_hdr { - uint8_t pdu_type; /*!< BSSGP PDU type */ - uint8_t data[0]; /*!< optional/conditional IEs as TLVs */ -}; - -/*! \brief BSSGP Information Element Identifiers */ -enum bssgp_iei_type { - BSSGP_IE_ALIGNMENT = 0x00, - BSSGP_IE_BMAX_DEFAULT_MS = 0x01, - BSSGP_IE_BSS_AREA_ID = 0x02, - BSSGP_IE_BUCKET_LEAK_RATE = 0x03, - BSSGP_IE_BVCI = 0x04, - BSSGP_IE_BVC_BUCKET_SIZE = 0x05, - BSSGP_IE_BVC_MEASUREMENT = 0x06, - BSSGP_IE_CAUSE = 0x07, - BSSGP_IE_CELL_ID = 0x08, - BSSGP_IE_CHAN_NEEDED = 0x09, - BSSGP_IE_DRX_PARAMS = 0x0a, - BSSGP_IE_EMLPP_PRIO = 0x0b, - BSSGP_IE_FLUSH_ACTION = 0x0c, - BSSGP_IE_IMSI = 0x0d, - BSSGP_IE_LLC_PDU = 0x0e, - BSSGP_IE_LLC_FRAMES_DISCARDED = 0x0f, - BSSGP_IE_LOCATION_AREA = 0x10, - BSSGP_IE_MOBILE_ID = 0x11, - BSSGP_IE_MS_BUCKET_SIZE = 0x12, - BSSGP_IE_MS_RADIO_ACCESS_CAP = 0x13, - BSSGP_IE_OMC_ID = 0x14, - BSSGP_IE_PDU_IN_ERROR = 0x15, - BSSGP_IE_PDU_LIFETIME = 0x16, - BSSGP_IE_PRIORITY = 0x17, - BSSGP_IE_QOS_PROFILE = 0x18, - BSSGP_IE_RADIO_CAUSE = 0x19, - BSSGP_IE_RA_CAP_UPD_CAUSE = 0x1a, - BSSGP_IE_ROUTEING_AREA = 0x1b, - BSSGP_IE_R_DEFAULT_MS = 0x1c, - BSSGP_IE_SUSPEND_REF_NR = 0x1d, - BSSGP_IE_TAG = 0x1e, - BSSGP_IE_TLLI = 0x1f, - BSSGP_IE_TMSI = 0x20, - BSSGP_IE_TRACE_REFERENC = 0x21, - BSSGP_IE_TRACE_TYPE = 0x22, - BSSGP_IE_TRANSACTION_ID = 0x23, - BSSGP_IE_TRIGGER_ID = 0x24, - BSSGP_IE_NUM_OCT_AFF = 0x25, - BSSGP_IE_LSA_ID_LIST = 0x26, - BSSGP_IE_LSA_INFORMATION = 0x27, - BSSGP_IE_PACKET_FLOW_ID = 0x28, - BSSGP_IE_PACKET_FLOW_TIMER = 0x29, - BSSGP_IE_AGG_BSS_QOS_PROFILE = 0x3a, - BSSGP_IE_FEATURE_BITMAP = 0x3b, - BSSGP_IE_BUCKET_FULL_RATIO = 0x3c, - BSSGP_IE_SERVICE_UTRAN_CCO = 0x3d, -}; - -/*! \brief Cause coding (Section 11.3.8 / Table 11.10) */ -enum gprs_bssgp_cause { - BSSGP_CAUSE_PROC_OVERLOAD = 0x00, - BSSGP_CAUSE_EQUIP_FAIL = 0x01, - BSSGP_CAUSE_TRASIT_NET_FAIL = 0x02, - BSSGP_CAUSE_CAPA_GREATER_0KPBS = 0x03, - BSSGP_CAUSE_UNKNOWN_MS = 0x04, - BSSGP_CAUSE_UNKNOWN_BVCI = 0x05, - BSSGP_CAUSE_CELL_TRAF_CONG = 0x06, - BSSGP_CAUSE_SGSN_CONG = 0x07, - BSSGP_CAUSE_OML_INTERV = 0x08, - BSSGP_CAUSE_BVCI_BLOCKED = 0x09, - BSSGP_CAUSE_PFC_CREATE_FAIL = 0x0a, - BSSGP_CAUSE_SEM_INCORR_PDU = 0x20, - BSSGP_CAUSE_INV_MAND_INF = 0x21, - BSSGP_CAUSE_MISSING_MAND_IE = 0x22, - BSSGP_CAUSE_MISSING_COND_IE = 0x23, - BSSGP_CAUSE_UNEXP_COND_IE = 0x24, - BSSGP_CAUSE_COND_IE_ERR = 0x25, - BSSGP_CAUSE_PDU_INCOMP_STATE = 0x26, - BSSGP_CAUSE_PROTO_ERR_UNSPEC = 0x27, - BSSGP_CAUSE_PDU_INCOMP_FEAT = 0x28, -}; - -#endif diff --git a/openbsc/src/libgb/Makefile.am b/openbsc/src/libgb/Makefile.am deleted file mode 100644 index eafbc343..00000000 --- a/openbsc/src/libgb/Makefile.am +++ /dev/null @@ -1,9 +0,0 @@ -INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir) -AM_CFLAGS=-Wall -fno-strict-aliasing $(LIBOSMOCORE_CFLAGS) \ - $(LIBOSMOVTY_CFLAGS) $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS) - -noinst_LIBRARIES = libgb.a - -libgb_a_SOURCES = gprs_ns.c gprs_ns_frgre.c gprs_ns_vty.c \ - gprs_bssgp.c gprs_bssgp_util.c gprs_bssgp_vty.c \ - gprs_bssgp_bss.c common_vty.c diff --git a/openbsc/src/libgb/common_vty.c b/openbsc/src/libgb/common_vty.c deleted file mode 100644 index 0bd0b6c3..00000000 --- a/openbsc/src/libgb/common_vty.c +++ /dev/null @@ -1,90 +0,0 @@ -/* OpenBSC VTY common helpers */ -/* (C) 2009-2012 by Harald Welte - * (C) 2009-2010 by Holger Hans Peter Freyther - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation; either version 3 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - * - */ - -#include -#include - -#include -#include - -#include -#include -#include -#include - -#include - -#include "common_vty.h" - -/* Down vty node level. */ -gDEFUN(libgb_exit, - libgb_exit_cmd, "exit", "Exit current mode and down to previous mode\n") -{ - switch (vty->node) { - case L_NS_NODE: - case L_BSSGP_NODE: - vty->node = CONFIG_NODE; - vty->index = NULL; - break; - default: - break; - } - return CMD_SUCCESS; -} - -/* End of configuration. */ -gDEFUN(libgb_end, - libgb_end_cmd, "end", "End current mode and change to enable mode.") -{ - switch (vty->node) { - case L_NS_NODE: - case L_BSSGP_NODE: - vty_config_unlock(vty); - vty->node = ENABLE_NODE; - vty->index = NULL; - vty->index_sub = NULL; - break; - default: - break; - } - return CMD_SUCCESS; -} - -int gprs_log_filter_fn(const struct log_context *ctx, - struct log_target *tar) -{ - const struct gprs_nsvc *nsvc = ctx->ctx[GPRS_CTX_NSVC]; - const struct gprs_bvc *bvc = ctx->ctx[GPRS_CTX_BVC]; - - /* Filter on the NS Virtual Connection */ - if ((tar->filter_map & (1 << FLT_NSVC)) != 0 - && nsvc && (nsvc == tar->filter_data[FLT_NSVC])) - return 1; - - /* Filter on the NS Virtual Connection */ - if ((tar->filter_map & (1 << FLT_BVC)) != 0 - && bvc && (bvc == tar->filter_data[FLT_BVC])) - return 1; - - return 0; -} - - -int DNS, DBSSGP; diff --git a/openbsc/src/libgb/common_vty.h b/openbsc/src/libgb/common_vty.h deleted file mode 100644 index d8d00407..00000000 --- a/openbsc/src/libgb/common_vty.h +++ /dev/null @@ -1,14 +0,0 @@ -#include -#include - -extern int DNS, DBSSGP; - -enum log_filter { - _FLT_ALL = LOG_FILTER_ALL, /* libosmocore */ - FLT_NSVC = 1, - FLT_BVC = 2, -}; - -extern struct cmd_element libgb_exit_cmd; -extern struct cmd_element libgb_end_cmd; - diff --git a/openbsc/src/libgb/gprs_bssgp.c b/openbsc/src/libgb/gprs_bssgp.c deleted file mode 100644 index 4b8c7302..00000000 --- a/openbsc/src/libgb/gprs_bssgp.c +++ /dev/null @@ -1,919 +0,0 @@ -/* GPRS BSSGP protocol implementation as per 3GPP TS 08.18 */ - -/* (C) 2009-2012 by Harald Welte - * - * All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation; either version 3 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - * - * TODO: - * o properly count incoming BVC-RESET packets in counter group - * o set log context as early as possible for outgoing packets - */ - -#include -#include - -#include - -#include -#include -#include -#include - -#include -#include - -#include "common_vty.h" - -void *bssgp_tall_ctx = NULL; - -static const struct rate_ctr_desc bssgp_ctr_description[] = { - { "packets.in", "Packets at BSSGP Level ( In)" }, - { "packets.out","Packets at BSSGP Level (Out)" }, - { "bytes.in", "Bytes at BSSGP Level ( In)" }, - { "bytes.out", "Bytes at BSSGP Level (Out)" }, - { "blocked", "BVC Blocking count" }, - { "discarded", "BVC LLC Discarded count" }, -}; - -static const struct rate_ctr_group_desc bssgp_ctrg_desc = { - .group_name_prefix = "bssgp.bss_ctx", - .group_description = "BSSGP Peer Statistics", - .num_ctr = ARRAY_SIZE(bssgp_ctr_description), - .ctr_desc = bssgp_ctr_description, -}; - -LLIST_HEAD(bssgp_bvc_ctxts); - -/* Find a BTS Context based on parsed RA ID and Cell ID */ -struct bssgp_bvc_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid) -{ - struct bssgp_bvc_ctx *bctx; - - llist_for_each_entry(bctx, &bssgp_bvc_ctxts, list) { - if (!memcmp(&bctx->ra_id, raid, sizeof(bctx->ra_id)) && - bctx->cell_id == cid) - return bctx; - } - return NULL; -} - -/* Find a BTS context based on BVCI+NSEI tuple */ -struct bssgp_bvc_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei) -{ - struct bssgp_bvc_ctx *bctx; - - llist_for_each_entry(bctx, &bssgp_bvc_ctxts, list) { - if (bctx->nsei == nsei && bctx->bvci == bvci) - return bctx; - } - return NULL; -} - -struct bssgp_bvc_ctx *btsctx_alloc(uint16_t bvci, uint16_t nsei) -{ - struct bssgp_bvc_ctx *ctx; - - ctx = talloc_zero(bssgp_tall_ctx, struct bssgp_bvc_ctx); - if (!ctx) - return NULL; - ctx->bvci = bvci; - ctx->nsei = nsei; - /* FIXME: BVCI is not unique, only BVCI+NSEI ?!? */ - ctx->ctrg = rate_ctr_group_alloc(ctx, &bssgp_ctrg_desc, bvci); - - llist_add(&ctx->list, &bssgp_bvc_ctxts); - - return ctx; -} - -/* Chapter 10.4.5: Flow Control BVC ACK */ -static int bssgp_tx_fc_bvc_ack(uint16_t nsei, uint8_t tag, uint16_t ns_bvci) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = ns_bvci; - - bgph->pdu_type = BSSGP_PDUT_FLOW_CONTROL_BVC_ACK; - msgb_tvlv_put(msg, BSSGP_IE_TAG, 1, &tag); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* 10.3.7 SUSPEND-ACK PDU */ -int bssgp_tx_suspend_ack(uint16_t nsei, uint32_t tlli, - const struct gprs_ra_id *ra_id, uint8_t suspend_ref) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint32_t _tlli; - uint8_t ra[6]; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_SUSPEND_ACK; - - _tlli = htonl(tlli); - msgb_tvlv_put(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &_tlli); - gsm48_construct_ra(ra, ra_id); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - msgb_tvlv_put(msg, BSSGP_IE_SUSPEND_REF_NR, 1, &suspend_ref); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* 10.3.8 SUSPEND-NACK PDU */ -int bssgp_tx_suspend_nack(uint16_t nsei, uint32_t tlli, - const struct gprs_ra_id *ra_id, - uint8_t *cause) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint32_t _tlli; - uint8_t ra[6]; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_SUSPEND_NACK; - - _tlli = htonl(tlli); - msgb_tvlv_put(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &_tlli); - gsm48_construct_ra(ra, ra_id); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - if (cause) - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, cause); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* 10.3.10 RESUME-ACK PDU */ -int bssgp_tx_resume_ack(uint16_t nsei, uint32_t tlli, - const struct gprs_ra_id *ra_id) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint32_t _tlli; - uint8_t ra[6]; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_RESUME_ACK; - - _tlli = htonl(tlli); - msgb_tvlv_put(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &_tlli); - gsm48_construct_ra(ra, ra_id); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* 10.3.11 RESUME-NACK PDU */ -int bssgp_tx_resume_nack(uint16_t nsei, uint32_t tlli, - const struct gprs_ra_id *ra_id, uint8_t *cause) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint32_t _tlli; - uint8_t ra[6]; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_SUSPEND_NACK; - - _tlli = htonl(tlli); - msgb_tvlv_put(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &_tlli); - gsm48_construct_ra(ra, ra_id); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - if (cause) - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, cause); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -uint16_t bssgp_parse_cell_id(struct gprs_ra_id *raid, const uint8_t *buf) -{ - /* 6 octets RAC */ - gsm48_parse_ra(raid, buf); - /* 2 octets CID */ - return ntohs(*(uint16_t *) (buf+6)); -} - -int bssgp_create_cell_id(uint8_t *buf, const struct gprs_ra_id *raid, - uint16_t cid) -{ - uint16_t *out_cid = (uint16_t *) (buf + 6); - /* 6 octets RAC */ - gsm48_construct_ra(buf, raid); - /* 2 octets CID */ - *out_cid = htons(cid); - - return 8; -} - -/* Chapter 8.4 BVC-Reset Procedure */ -static int bssgp_rx_bvc_reset(struct msgb *msg, struct tlv_parsed *tp, - uint16_t ns_bvci) -{ - struct osmo_bssgp_prim nmp; - struct bssgp_bvc_ctx *bctx; - uint16_t nsei = msgb_nsei(msg); - uint16_t bvci; - int rc; - - bvci = ntohs(*(uint16_t *)TLVP_VAL(tp, BSSGP_IE_BVCI)); - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx RESET cause=%s\n", bvci, - bssgp_cause_str(*TLVP_VAL(tp, BSSGP_IE_CAUSE))); - - /* look-up or create the BTS context for this BVC */ - bctx = btsctx_by_bvci_nsei(bvci, nsei); - if (!bctx) - bctx = btsctx_alloc(bvci, nsei); - - /* As opposed to NS-VCs, BVCs are NOT blocked after RESET */ - bctx->state &= ~BVC_S_BLOCKED; - - /* When we receive a BVC-RESET PDU (at least of a PTP BVCI), the BSS - * informs us about its RAC + Cell ID, so we can create a mapping */ - if (bvci != 0 && bvci != 1) { - if (!TLVP_PRESENT(tp, BSSGP_IE_CELL_ID)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u Rx RESET " - "missing mandatory IE\n", bvci); - return -EINVAL; - } - /* actually extract RAC / CID */ - bctx->cell_id = bssgp_parse_cell_id(&bctx->ra_id, - TLVP_VAL(tp, BSSGP_IE_CELL_ID)); - LOGP(DBSSGP, LOGL_NOTICE, "Cell %u-%u-%u-%u CI %u on BVCI %u\n", - bctx->ra_id.mcc, bctx->ra_id.mnc, bctx->ra_id.lac, - bctx->ra_id.rac, bctx->cell_id, bvci); - } - - /* Send NM_BVC_RESET.ind to NM */ - memset(&nmp, 0, sizeof(nmp)); - nmp.nsei = nsei; - nmp.bvci = bvci; - nmp.tp = tp; - nmp.ra_id = &bctx->ra_id; - osmo_prim_init(&nmp.oph, SAP_BSSGP_NM, PRIM_NM_BVC_RESET, - PRIM_OP_INDICATION, msg); - bssgp_prim_cb(&nmp.oph, NULL); - - /* Acknowledge the RESET to the BTS */ - rc = bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_RESET_ACK, - nsei, bvci, ns_bvci); - return 0; -} - -static int bssgp_rx_bvc_block(struct msgb *msg, struct tlv_parsed *tp) -{ - struct osmo_bssgp_prim nmp; - uint16_t bvci; - struct bssgp_bvc_ctx *ptp_ctx; - - bvci = ntohs(*(uint16_t *)TLVP_VAL(tp, BSSGP_IE_BVCI)); - if (bvci == BVCI_SIGNALLING) { - /* 8.3.2: Signalling BVC shall never be blocked */ - LOGP(DBSSGP, LOGL_ERROR, "NSEI=%u/BVCI=%u " - "received block for signalling BVC!?!\n", - msgb_nsei(msg), msgb_bvci(msg)); - return 0; - } - - LOGP(DBSSGP, LOGL_INFO, "BSSGP Rx BVCI=%u BVC-BLOCK\n", bvci); - - ptp_ctx = btsctx_by_bvci_nsei(bvci, msgb_nsei(msg)); - if (!ptp_ctx) - return bssgp_tx_status(BSSGP_CAUSE_UNKNOWN_BVCI, &bvci, msg); - - ptp_ctx->state |= BVC_S_BLOCKED; - rate_ctr_inc(&ptp_ctx->ctrg->ctr[BSSGP_CTR_BLOCKED]); - - /* Send NM_BVC_BLOCK.ind to NM */ - memset(&nmp, 0, sizeof(nmp)); - nmp.nsei = msgb_nsei(msg); - nmp.bvci = bvci; - nmp.tp = tp; - osmo_prim_init(&nmp.oph, SAP_BSSGP_NM, PRIM_NM_BVC_BLOCK, - PRIM_OP_INDICATION, msg); - bssgp_prim_cb(&nmp.oph, NULL); - - /* We always acknowledge the BLOCKing */ - return bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_BLOCK_ACK, msgb_nsei(msg), - bvci, msgb_bvci(msg)); -}; - -static int bssgp_rx_bvc_unblock(struct msgb *msg, struct tlv_parsed *tp) -{ - struct osmo_bssgp_prim nmp; - uint16_t bvci; - struct bssgp_bvc_ctx *ptp_ctx; - - bvci = ntohs(*(uint16_t *)TLVP_VAL(tp, BSSGP_IE_BVCI)); - if (bvci == BVCI_SIGNALLING) { - /* 8.3.2: Signalling BVC shall never be blocked */ - LOGP(DBSSGP, LOGL_ERROR, "NSEI=%u/BVCI=%u " - "received unblock for signalling BVC!?!\n", - msgb_nsei(msg), msgb_bvci(msg)); - return 0; - } - - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx BVC-UNBLOCK\n", bvci); - - ptp_ctx = btsctx_by_bvci_nsei(bvci, msgb_nsei(msg)); - if (!ptp_ctx) - return bssgp_tx_status(BSSGP_CAUSE_UNKNOWN_BVCI, &bvci, msg); - - ptp_ctx->state &= ~BVC_S_BLOCKED; - - /* Send NM_BVC_UNBLOCK.ind to NM */ - memset(&nmp, 0, sizeof(nmp)); - nmp.nsei = msgb_nsei(msg); - nmp.bvci = bvci; - nmp.tp = tp; - osmo_prim_init(&nmp.oph, SAP_BSSGP_NM, PRIM_NM_BVC_UNBLOCK, - PRIM_OP_INDICATION, msg); - bssgp_prim_cb(&nmp.oph, NULL); - - /* We always acknowledge the unBLOCKing */ - return bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_UNBLOCK_ACK, msgb_nsei(msg), - bvci, msgb_bvci(msg)); -}; - -/* Uplink unit-data */ -static int bssgp_rx_ul_ud(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *ctx) -{ - struct osmo_bssgp_prim gbp; - struct bssgp_ud_hdr *budh = (struct bssgp_ud_hdr *) msgb_bssgph(msg); - - /* extract TLLI and parse TLV IEs */ - msgb_tlli(msg) = ntohl(budh->tlli); - - DEBUGP(DBSSGP, "BSSGP TLLI=0x%08x Rx UPLINK-UNITDATA\n", msgb_tlli(msg)); - - /* Cell ID and LLC_PDU are the only mandatory IE */ - if (!TLVP_PRESENT(tp, BSSGP_IE_CELL_ID) || - !TLVP_PRESENT(tp, BSSGP_IE_LLC_PDU)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP TLLI=0x%08x Rx UL-UD " - "missing mandatory IE\n", msgb_tlli(msg)); - return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg); - } - - /* store pointer to LLC header and CELL ID in msgb->cb */ - msgb_llch(msg) = (uint8_t *) TLVP_VAL(tp, BSSGP_IE_LLC_PDU); - msgb_bcid(msg) = (uint8_t *) TLVP_VAL(tp, BSSGP_IE_CELL_ID); - - /* Send BSSGP_UL_UD.ind to NM */ - memset(&gbp, 0, sizeof(gbp)); - gbp.nsei = ctx->nsei; - gbp.bvci = ctx->bvci; - gbp.tlli = msgb_tlli(msg); - gbp.tp = tp; - osmo_prim_init(&gbp.oph, SAP_BSSGP_LL, PRIM_BSSGP_UL_UD, - PRIM_OP_INDICATION, msg); - return bssgp_prim_cb(&gbp.oph, NULL); -} - -static int bssgp_rx_suspend(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *ctx) -{ - struct osmo_bssgp_prim gbp; - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - struct gprs_ra_id raid; - uint32_t tlli; - int rc; - - if (!TLVP_PRESENT(tp, BSSGP_IE_TLLI) || - !TLVP_PRESENT(tp, BSSGP_IE_ROUTEING_AREA)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u Rx SUSPEND " - "missing mandatory IE\n", ctx->bvci); - return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg); - } - - tlli = ntohl(*(uint32_t *)TLVP_VAL(tp, BSSGP_IE_TLLI)); - - DEBUGP(DBSSGP, "BSSGP BVCI=%u TLLI=0x%08x Rx SUSPEND\n", - ctx->bvci, tlli); - - gsm48_parse_ra(&raid, TLVP_VAL(tp, BSSGP_IE_ROUTEING_AREA)); - - /* Inform GMM about the SUSPEND request */ - memset(&gbp, 0, sizeof(gbp)); - gbp.nsei = msgb_nsei(msg); - gbp.bvci = ctx->bvci; - gbp.tlli = tlli; - gbp.ra_id = &raid; - osmo_prim_init(&gbp.oph, SAP_BSSGP_GMM, PRIM_BSSGP_GMM_SUSPEND, - PRIM_OP_REQUEST, msg); - - rc = bssgp_prim_cb(&gbp.oph, NULL); - if (rc < 0) - return bssgp_tx_suspend_nack(msgb_nsei(msg), tlli, &raid, NULL); - - bssgp_tx_suspend_ack(msgb_nsei(msg), tlli, &raid, 0); - - return 0; -} - -static int bssgp_rx_resume(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *ctx) -{ - struct osmo_bssgp_prim gbp; - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - struct gprs_ra_id raid; - uint32_t tlli; - uint8_t suspend_ref; - int rc; - - if (!TLVP_PRESENT(tp, BSSGP_IE_TLLI) || - !TLVP_PRESENT(tp, BSSGP_IE_ROUTEING_AREA) || - !TLVP_PRESENT(tp, BSSGP_IE_SUSPEND_REF_NR)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u Rx RESUME " - "missing mandatory IE\n", ctx->bvci); - return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg); - } - - tlli = ntohl(*(uint32_t *)TLVP_VAL(tp, BSSGP_IE_TLLI)); - suspend_ref = *TLVP_VAL(tp, BSSGP_IE_SUSPEND_REF_NR); - - DEBUGP(DBSSGP, "BSSGP BVCI=%u TLLI=0x%08x Rx RESUME\n", ctx->bvci, tlli); - - gsm48_parse_ra(&raid, TLVP_VAL(tp, BSSGP_IE_ROUTEING_AREA)); - - /* Inform GMM about the RESUME request */ - memset(&gbp, 0, sizeof(gbp)); - gbp.nsei = msgb_nsei(msg); - gbp.bvci = ctx->bvci; - gbp.tlli = tlli; - gbp.ra_id = &raid; - gbp.u.resume.suspend_ref = suspend_ref; - osmo_prim_init(&gbp.oph, SAP_BSSGP_GMM, PRIM_BSSGP_GMM_RESUME, - PRIM_OP_REQUEST, msg); - - rc = bssgp_prim_cb(&gbp.oph, NULL); - if (rc < 0) - return bssgp_tx_resume_nack(msgb_nsei(msg), tlli, &raid, - NULL); - - bssgp_tx_resume_ack(msgb_nsei(msg), tlli, &raid); - return 0; -} - - -static int bssgp_rx_llc_disc(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *ctx) -{ - struct osmo_bssgp_prim nmp; - uint32_t tlli = 0; - - if (!TLVP_PRESENT(tp, BSSGP_IE_TLLI) || - !TLVP_PRESENT(tp, BSSGP_IE_LLC_FRAMES_DISCARDED) || - !TLVP_PRESENT(tp, BSSGP_IE_BVCI) || - !TLVP_PRESENT(tp, BSSGP_IE_NUM_OCT_AFF)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u Rx LLC DISCARDED " - "missing