From edcba4e307fc6d8cf3de5d22982b1317178e7433 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 17 Jun 2012 23:34:34 +0800 Subject: use new external libosmogb (part of libosmocore.git) This removes the libgb (GPRS NS/BSSGP) code from the openbsc.git repository and uses the new version from libosmocore.git instead. --- openbsc/configure.ac | 5 +- openbsc/include/Makefile.am | 2 +- openbsc/include/osmocom/Makefile.am | 1 - 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/Makefile.am | 2 +- openbsc/src/gprs/Makefile.am | 11 +- 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 -- 23 files changed, 8 insertions(+), 4453 deletions(-) delete mode 100644 openbsc/include/osmocom/Makefile.am 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/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 diff --git a/openbsc/configure.ac b/openbsc/configure.ac index 308bae8f6..3f2d4d4f5 100644 --- a/openbsc/configure.ac +++ b/openbsc/configure.ac @@ -45,6 +45,7 @@ PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.3.2) PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.3.0) PKG_CHECK_MODULES(LIBOSMOGSM, libosmogsm >= 0.3.0) PKG_CHECK_MODULES(LIBOSMOABIS, libosmoabis >= 0.1.0) +PKG_CHECK_MODULES(LIBOSMOGB, libosmogb >= 0.5.1) found_libgtp=yes PKG_CHECK_MODULES(LIBGTP, libgtp, , found_libgtp=no) @@ -114,9 +115,6 @@ AM_CONFIG_HEADER(bscconfig.h) AC_OUTPUT( openbsc.pc include/openbsc/Makefile - include/osmocom/Makefile - include/osmocom/gprs/Makefile - include/osmocom/gprs/protocol/Makefile include/Makefile src/Makefile src/libtrau/Makefile @@ -131,7 +129,6 @@ AC_OUTPUT( src/osmo-bsc_mgcp/Makefile src/ipaccess/Makefile src/utils/Makefile - src/libgb/Makefile src/gprs/Makefile tests/Makefile tests/atlocal diff --git a/openbsc/include/Makefile.am b/openbsc/include/Makefile.am index 2cc8bee71..4596b6e3c 100644 --- a/openbsc/include/Makefile.am +++ b/openbsc/include/Makefile.am @@ -1,3 +1,3 @@ -SUBDIRS = openbsc osmocom +SUBDIRS = openbsc noinst_HEADERS = mISDNif.h compat_af_isdn.h diff --git a/openbsc/include/osmocom/Makefile.am b/openbsc/include/osmocom/Makefile.am deleted file mode 100644 index 596ce23fc..000000000 --- a/openbsc/include/osmocom/Makefile.am +++ /dev/null @@ -1 +0,0 @@ -SUBDIRS = gprs diff --git a/openbsc/include/osmocom/gprs/Makefile.am b/openbsc/include/osmocom/gprs/Makefile.am deleted file mode 100644 index d39592c1b..000000000 --- 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 949dbdc89..000000000 --- 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 f4c855478..000000000 --- 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 a7f32b25a..000000000 --- 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 abcd43ffb..000000000 --- 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 8255a9529..000000000 --- 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 4c3eda327..000000000 --- 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 3a351eaaf..000000000 --- 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/Makefile.am b/openbsc/src/Makefile.am index 805fb1cd9..cf34c4c13 100644 --- a/openbsc/src/Makefile.am +++ b/openbsc/src/Makefile.am @@ -2,7 +2,7 @@ INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir) AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(COVERAGE_CFLAGS) AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) $(COVERAGE_LDFLAGS) -SUBDIRS = libcommon libmgcp libbsc libmsc libtrau libctrl osmo-nitb osmo-bsc_mgcp utils ipaccess libgb gprs +SUBDIRS = libcommon libmgcp libbsc libmsc libtrau libctrl osmo-nitb osmo-bsc_mgcp utils ipaccess gprs # Conditional modules if BUILD_NAT diff --git a/openbsc/src/gprs/Makefile.am b/openbsc/src/gprs/Makefile.am index db86b163f..1ef025070 100644 --- a/openbsc/src/gprs/Makefile.am +++ b/openbsc/src/gprs/Makefile.am @@ -1,8 +1,9 @@ INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir) AM_CFLAGS=-Wall -fno-strict-aliasing $(LIBOSMOCORE_CFLAGS) \ $(LIBOSMOGSM_CFLAGS) $(LIBOSMOVTY_CFLAGS) \ - $(LIBOSMOABIS_CFLAGS) $(COVERAGE_CFLAGS) -OSMO_LIBS = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) + $(LIBOSMOABIS_CFLAGS) $(LIBOSMOGB_CFLAGS) $(COVERAGE_CFLAGS) +OSMO_LIBS = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) $(LIBOSMOVTY_LIBS) \ + $(LIBOSMOGB_LIBS) noinst_HEADERS = gprs_sndcp.h @@ -13,13 +14,11 @@ bin_PROGRAMS = osmo-gbproxy endif osmo_gbproxy_SOURCES = gb_proxy.c gb_proxy_main.c gb_proxy_vty.c -osmo_gbproxy_LDADD = $(top_builddir)/src/libgb/libgb.a \ - $(top_builddir)/src/libcommon/libcommon.a \ +osmo_gbproxy_LDADD = $(top_builddir)/src/libcommon/libcommon.a \ $(OSMO_LIBS) osmo_sgsn_SOURCES = gprs_gmm.c gprs_sgsn.c gprs_sndcp.c gprs_sndcp_vty.c \ sgsn_main.c sgsn_vty.c sgsn_libgtp.c \ gprs_llc.c gprs_llc_vty.c crc24.c -osmo_sgsn_LDADD = $(top_builddir)/src/libgb/libgb.a \ - $(top_builddir)/src/libcommon/libcommon.a \ +osmo_sgsn_LDADD = $(top_builddir)/src/libcommon/libcommon.a \ -lgtp $(OSMO_LIBS) diff --git a/openbsc/src/libgb/common_vty.c b/openbsc/src/libgb/common_vty.c deleted file mode 100644 index 0bd0b6c37..000000000 --- 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 d8d00407b..000000000 --- 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 4b8c73028..000000000 --- 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 mandatory IE\n", ctx->bvci); - } - - if (TLVP_PRESENT(tp, BSSGP_IE_TLLI)) - tlli = ntohl(*(uint32_t *)TLVP_VAL(tp, BSSGP_IE_TLLI)); - - DEBUGP(DBSSGP, "BSSGP BVCI=%u TLLI=%08x Rx LLC DISCARDED\n", - ctx->bvci, tlli); - - rate_ctr_inc(&ctx->ctrg->ctr[BSSGP_CTR_DISCARDED]); - - /* send NM_LLC_DISCARDED to NM */ - memset(&nmp, 0, sizeof(nmp)); - nmp.nsei = msgb_nsei(msg); - nmp.bvci = ctx->bvci; - nmp.tlli = tlli; - nmp.tp = tp; - osmo_prim_init(&nmp.oph, SAP_BSSGP_NM, PRIM_NM_LLC_DISCARDED, - PRIM_OP_INDICATION, msg); - - return bssgp_prim_cb(&nmp.oph, NULL); -} - -static int bssgp_rx_fc_bvc(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *bctx) -{ - - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx Flow Control BVC\n", - bctx->bvci); - - if (!TLVP_PRESENT(tp, BSSGP_IE_TAG) || - !TLVP_PRESENT(tp, BSSGP_IE_BVC_BUCKET_SIZE) || - !TLVP_PRESENT(tp, BSSGP_IE_BUCKET_LEAK_RATE) || - !TLVP_PRESENT(tp, BSSGP_IE_BMAX_DEFAULT_MS) || - !TLVP_PRESENT(tp, BSSGP_IE_R_DEFAULT_MS)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u Rx FC BVC " - "missing mandatory IE\n", bctx->bvci); - return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg); - } - - /* FIXME: actually implement flow control */ - - /* Send FLOW_CONTROL_BVC_ACK */ - return bssgp_tx_fc_bvc_ack(msgb_nsei(msg), *TLVP_VAL(tp, BSSGP_IE_TAG), - msgb_bvci(msg)); -} - -/* Receive a BSSGP PDU from a BSS on a PTP BVCI */ -static int bssgp_rx_ptp(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *bctx) -{ - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - uint8_t pdu_type = bgph->pdu_type; - int rc = 0; - - /* If traffic is received on a BVC that is marked as blocked, the - * received PDU shall not be accepted and a STATUS PDU (Cause value: - * BVC Blocked) shall be sent to the peer entity on the signalling BVC */ - if (bctx->state & BVC_S_BLOCKED && pdu_type != BSSGP_PDUT_STATUS) { - uint16_t bvci = msgb_bvci(msg); - return bssgp_tx_status(BSSGP_CAUSE_BVCI_BLOCKED, &bvci, msg); - } - - switch (pdu_type) { - case BSSGP_PDUT_UL_UNITDATA: - /* some LLC data from the MS */ - rc = bssgp_rx_ul_ud(msg, tp, bctx); - break; - case BSSGP_PDUT_RA_CAPABILITY: - /* BSS requests RA capability or IMSI */ - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx RA CAPABILITY UPDATE\n", - bctx->bvci); - /* FIXME: send GMM_RA_CAPABILITY_UPDATE.ind to GMM */ - /* FIXME: send RA_CAPA_UPDATE_ACK */ - break; - case BSSGP_PDUT_RADIO_STATUS: - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx RADIO STATUS\n", bctx->bvci); - /* BSS informs us of some exception */ - /* FIXME: send GMM_RADIO_STATUS.ind to GMM */ - break; - case BSSGP_PDUT_FLOW_CONTROL_BVC: - /* BSS informs us of available bandwidth in Gb interface */ - rc = bssgp_rx_fc_bvc(msg, tp, bctx); - break; - case BSSGP_PDUT_FLOW_CONTROL_MS: - /* BSS informs us of available bandwidth to one MS */ - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx Flow Control MS\n", - bctx->bvci); - /* FIXME: actually implement flow control */ - /* FIXME: Send FLOW_CONTROL_MS_ACK */ - break; - case BSSGP_PDUT_STATUS: - /* Some exception has occurred */ - /* FIXME: send NM_STATUS.ind to NM */ - case BSSGP_PDUT_DOWNLOAD_BSS_PFC: - case BSSGP_PDUT_CREATE_BSS_PFC_ACK: - case BSSGP_PDUT_CREATE_BSS_PFC_NACK: - case BSSGP_PDUT_MODIFY_BSS_PFC: - case BSSGP_PDUT_DELETE_BSS_PFC_ACK: - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx PDU type 0x%02x not [yet] " - "implemented\n", bctx->bvci, pdu_type); - rc = bssgp_tx_status(BSSGP_CAUSE_PDU_INCOMP_FEAT, NULL, msg); - break; - /* those only exist in the SGSN -> BSS direction */ - case BSSGP_PDUT_DL_UNITDATA: - case BSSGP_PDUT_PAGING_PS: - case BSSGP_PDUT_PAGING_CS: - case BSSGP_PDUT_RA_CAPA_UPDATE_ACK: - case BSSGP_PDUT_FLOW_CONTROL_BVC_ACK: - case BSSGP_PDUT_FLOW_CONTROL_MS_ACK: - DEBUGP(DBSSGP, "BSSGP BVCI=%u PDU type 0x%02x only exists " - "in DL\n", bctx->bvci, pdu_type); - bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); - rc = -EINVAL; - break; - default: - DEBUGP(DBSSGP, "BSSGP BVCI=%u PDU type 0x%02x unknown\n", - bctx->bvci, pdu_type); - rc = bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); - break; - } - - return rc; -} - -/* Receive a BSSGP PDU from a BSS on a SIGNALLING BVCI */ -static int bssgp_rx_sign(struct msgb *msg, struct tlv_parsed *tp, - struct bssgp_bvc_ctx *bctx) -{ - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - uint8_t pdu_type = bgph->pdu_type; - int rc = 0; - uint16_t ns_bvci = msgb_bvci(msg); - uint16_t bvci; - - switch (bgph->pdu_type) { - case BSSGP_PDUT_SUSPEND: - /* MS wants to suspend */ - rc = bssgp_rx_suspend(msg, tp, bctx); - break; - case BSSGP_PDUT_RESUME: - /* MS wants to resume */ - rc = bssgp_rx_resume(msg, tp, bctx); - break; - case BSSGP_PDUT_FLUSH_LL_ACK: - /* BSS informs us it has performed LL FLUSH */ - DEBUGP(DBSSGP, "BSSGP Rx BVCI=%u FLUSH LL ACK\n", bctx->bvci); - /* FIXME: send NM_FLUSH_LL.res to NM */ - break; - case BSSGP_PDUT_LLC_DISCARD: - /* BSS informs that some LLC PDU's have been discarded */ - rc = bssgp_rx_llc_disc(msg, tp, bctx); - break; - case BSSGP_PDUT_BVC_BLOCK: - /* BSS tells us that BVC shall be blocked */ - if (!TLVP_PRESENT(tp, BSSGP_IE_BVCI) || - !TLVP_PRESENT(tp, BSSGP_IE_CAUSE)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP Rx BVC-BLOCK " - "missing mandatory IE\n"); - goto err_mand_ie; - } - rc = bssgp_rx_bvc_block(msg, tp); - break; - case BSSGP_PDUT_BVC_UNBLOCK: - /* BSS tells us that BVC shall be unblocked */ - if (!TLVP_PRESENT(tp, BSSGP_IE_BVCI)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP Rx BVC-UNBLOCK " - "missing mandatory IE\n"); - goto err_mand_ie; - } - rc = bssgp_rx_bvc_unblock(msg, tp); - break; - case BSSGP_PDUT_BVC_RESET: - /* BSS tells us that BVC init is required */ - if (!TLVP_PRESENT(tp, BSSGP_IE_BVCI) || - !TLVP_PRESENT(tp, BSSGP_IE_CAUSE)) { - LOGP(DBSSGP, LOGL_ERROR, "BSSGP Rx BVC-RESET " - "missing mandatory IE\n"); - goto err_mand_ie; - } - rc = bssgp_rx_bvc_reset(msg, tp, ns_bvci); - break; - case BSSGP_PDUT_STATUS: - /* Some exception has occurred */ - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx BVC STATUS\n", bctx->bvci); - /* FIXME: send NM_STATUS.ind to NM */ - break; - /* those only exist in the SGSN -> BSS direction */ - case BSSGP_PDUT_PAGING_PS: - case BSSGP_PDUT_PAGING_CS: - case BSSGP_PDUT_SUSPEND_ACK: - case BSSGP_PDUT_SUSPEND_NACK: - case BSSGP_PDUT_RESUME_ACK: - case BSSGP_PDUT_RESUME_NACK: - case BSSGP_PDUT_FLUSH_LL: - case BSSGP_PDUT_BVC_BLOCK_ACK: - case BSSGP_PDUT_BVC_UNBLOCK_ACK: - case BSSGP_PDUT_SGSN_INVOKE_TRACE: - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx PDU type 0x%02x only exists " - "in DL\n", bctx->bvci, pdu_type); - bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); - rc = -EINVAL; - break; - default: - DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx PDU type 0x%02x unknown\n", - bctx->bvci, pdu_type); - rc = bssgp_tx_status(BSSGP_CAUSE_PROTO_ERR_UNSPEC, NULL, msg); - break; - } - - return rc; -err_mand_ie: - return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg); -} - -/* We expect msgb_bssgph() to point to the BSSGP header */ -int bssgp_rcvmsg(struct msgb *msg) -{ - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - struct bssgp_ud_hdr *budh = (struct bssgp_ud_hdr *) msgb_bssgph(msg); - struct tlv_parsed tp; - struct bssgp_bvc_ctx *bctx; - uint8_t pdu_type = bgph->pdu_type; - uint16_t ns_bvci = msgb_bvci(msg); - int data_len; - int rc = 0; - - /* Identifiers from DOWN: NSEI, BVCI (both in msg->cb) */ - - /* UNITDATA BSSGP headers have TLLI in front */ - if (pdu_type != BSSGP_PDUT_UL_UNITDATA && - pdu_type != BSSGP_PDUT_DL_UNITDATA) { - data_len = msgb_bssgp_len(msg) - sizeof(*bgph); - rc = bssgp_tlv_parse(&tp, bgph->data, data_len); - } else { - data_len = msgb_bssgp_len(msg) - sizeof(*budh); - rc = bssgp_tlv_parse(&tp, budh->data, data_len); - } - - /* look-up or create the BTS context for this BVC */ - bctx = btsctx_by_bvci_nsei(ns_bvci, msgb_nsei(msg)); - /* Only a RESET PDU can create a new BVC context */ - if (!bctx && pdu_type != BSSGP_PDUT_BVC_RESET) { - LOGP(DBSSGP, LOGL_NOTICE, "NSEI=%u/BVCI=%u Rejecting PDU " - "type %u for unknown BVCI\n", msgb_nsei(msg), ns_bvci, - pdu_type); - return bssgp_tx_status(BSSGP_CAUSE_UNKNOWN_BVCI, NULL, msg); - } - - if (bctx) { - log_set_context(GPRS_CTX_BVC, bctx); - rate_ctr_inc(&bctx->ctrg->ctr[BSSGP_CTR_PKTS_IN]); - rate_ctr_add(&bctx->ctrg->ctr[BSSGP_CTR_BYTES_IN], - msgb_bssgp_len(msg)); - } - - if (ns_bvci == BVCI_SIGNALLING) - rc = bssgp_rx_sign(msg, &tp, bctx); - else if (ns_bvci == BVCI_PTM) - rc = bssgp_tx_status(BSSGP_CAUSE_PDU_INCOMP_FEAT, NULL, msg); - else - rc = bssgp_rx_ptp(msg, &tp, bctx); - - return rc; -} - -int bssgp_tx_dl_ud(struct msgb *msg, uint16_t pdu_lifetime, - struct bssgp_dl_ud_par *dup) -{ - struct bssgp_bvc_ctx *bctx; - struct bssgp_ud_hdr *budh; - uint8_t llc_pdu_tlv_hdr_len = 2; - uint8_t *llc_pdu_tlv; - uint16_t msg_len = msg->len; - uint16_t bvci = msgb_bvci(msg); - uint16_t nsei = msgb_nsei(msg); - uint16_t _pdu_lifetime = htons(pdu_lifetime); /* centi-seconds */ - uint16_t drx_params; - - /* Identifiers from UP: TLLI, BVCI, NSEI (all in msgb->cb) */ - if (bvci <= BVCI_PTM ) { - LOGP(DBSSGP, LOGL_ERROR, "Cannot send DL-UD to BVCI %u\n", - bvci); - return -EINVAL; - } - - bctx = btsctx_by_bvci_nsei(bvci, nsei); - if (!bctx) { - /* FIXME: don't simply create missing context, but reject message */ - bctx = btsctx_alloc(bvci, nsei); - } - - if (msg->len > TVLV_MAX_ONEBYTE) - llc_pdu_tlv_hdr_len += 1; - - /* prepend the tag and length of the LLC-PDU TLV */ - llc_pdu_tlv = msgb_push(msg, llc_pdu_tlv_hdr_len); - llc_pdu_tlv[0] = BSSGP_IE_LLC_PDU; - if (llc_pdu_tlv_hdr_len > 2) { - llc_pdu_tlv[1] = msg_len >> 8; - llc_pdu_tlv[2] = msg_len & 0xff; - } else { - llc_pdu_tlv[1] = msg_len & 0x7f; - llc_pdu_tlv[1] |= 0x80; - } - - /* FIXME: optional elements: Alignment, UTRAN CCO, LSA, PFI */ - - if (dup) { - /* Old TLLI to help BSS map from old->new */ - if (dup->tlli) { - uint32_t tlli = htonl(*dup->tlli); - msgb_tvlv_push(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &tlli); - } - - /* IMSI */ - if (strlen(dup->imsi)) { - uint8_t mi[10]; - int imsi_len = gsm48_generate_mid_from_imsi(mi, dup->imsi); - if (imsi_len > 2) - msgb_tvlv_push(msg, BSSGP_IE_IMSI, - imsi_len-2, mi+2); - } - - /* DRX parameters */ - drx_params = htons(dup->drx_parms); - msgb_tvlv_push(msg, BSSGP_IE_DRX_PARAMS, 2, - (uint8_t *) &drx_params); - - /* FIXME: Priority */ - - /* MS Radio Access Capability */ - if (dup->ms_ra_cap.len) - msgb_tvlv_push(msg, BSSGP_IE_MS_RADIO_ACCESS_CAP, - dup->ms_ra_cap.len, dup->ms_ra_cap.v); - - } - - /* prepend the pdu lifetime */ - msgb_tvlv_push(msg, BSSGP_IE_PDU_LIFETIME, 2, (uint8_t *)&_pdu_lifetime); - - /* prepend the QoS profile, TLLI and pdu type */ - budh = (struct bssgp_ud_hdr *) msgb_push(msg, sizeof(*budh)); - memcpy(budh->qos_profile, dup->qos_profile, sizeof(budh->qos_profile)); - budh->tlli = htonl(msgb_tlli(msg)); - budh->pdu_type = BSSGP_PDUT_DL_UNITDATA; - - rate_ctr_inc(&bctx->ctrg->ctr[BSSGP_CTR_PKTS_OUT]); - rate_ctr_add(&bctx->ctrg->ctr[BSSGP_CTR_BYTES_OUT], msg->len); - - /* Identifiers down: BVCI, NSEI (in msgb->cb) */ - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* 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) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t drx_params = htons(pinfo->drx_params); - uint8_t mi[10]; - int imsi_len = gsm48_generate_mid_from_imsi(mi, pinfo->imsi); - uint8_t ra[6]; - - if (imsi_len < 2) - return -EINVAL; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = ns_bvci; - - if (pinfo->mode == BSSGP_PAGING_PS) - bgph->pdu_type = BSSGP_PDUT_PAGING_PS; - else - bgph->pdu_type = BSSGP_PDUT_PAGING_CS; - /* IMSI */ - msgb_tvlv_put(msg, BSSGP_IE_IMSI, imsi_len-2, mi+2); - /* DRX Parameters */ - msgb_tvlv_put(msg, BSSGP_IE_DRX_PARAMS, 2, - (uint8_t *) &drx_params); - /* Scope */ - switch (pinfo->scope) { - case BSSGP_PAGING_BSS_AREA: - { - uint8_t null = 0; - msgb_tvlv_put(msg, BSSGP_IE_BSS_AREA_ID, 1, &null); - } - break; - case BSSGP_PAGING_LOCATION_AREA: - gsm48_construct_ra(ra, &pinfo->raid); - msgb_tvlv_put(msg, BSSGP_IE_LOCATION_AREA, 4, ra); - break; - case BSSGP_PAGING_ROUTEING_AREA: - gsm48_construct_ra(ra, &pinfo->raid); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - break; - case BSSGP_PAGING_BVCI: - { - uint16_t bvci = htons(pinfo->bvci); - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *)&bvci); - } - break; - } - /* QoS profile mandatory for PS */ - if (pinfo->mode == BSSGP_PAGING_PS) - msgb_tvlv_put(msg, BSSGP_IE_QOS_PROFILE, 3, pinfo->qos); - - /* Optional (P-)TMSI */ - if (pinfo->ptmsi) { - uint32_t ptmsi = htonl(*pinfo->ptmsi); - msgb_tvlv_put(msg, BSSGP_IE_TMSI, 4, (uint8_t *) &ptmsi); - } - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -void bssgp_set_log_ss(int ss) -{ - DBSSGP = ss; -} diff --git a/openbsc/src/libgb/gprs_bssgp_bss.c b/openbsc/src/libgb/gprs_bssgp_bss.c deleted file mode 100644 index c058850d8..000000000 --- a/openbsc/src/libgb/gprs_bssgp_bss.c +++ /dev/null @@ -1,425 +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 . - * - */ - -#include -#include - -#include - -#include -#include -#include -#include -#include -#include - -#include "common_vty.h" - -uint8_t *bssgp_msgb_tlli_put(struct msgb *msg, uint32_t tlli) -{ - uint32_t _tlli = htonl(tlli); - return msgb_tvlv_put(msg, BSSGP_IE_TLLI, 4, (uint8_t *) &_tlli); -} - -/*! \brief GMM-SUSPEND.req (Chapter 10.3.6) */ -int bssgp_tx_suspend(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)); - uint8_t ra[6]; - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=0) Tx SUSPEND (TLLI=0x%04x)\n", - tlli); - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_SUSPEND; - - bssgp_msgb_tlli_put(msg, tlli); - - gsm48_construct_ra(ra, ra_id); - msgb_tvlv_put(msg, BSSGP_IE_ROUTEING_AREA, 6, ra); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief GMM-RESUME.req (Chapter 10.3.9) */ -int bssgp_tx_resume(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)); - uint8_t ra[6]; - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=0) Tx RESUME (TLLI=0x%04x)\n", - tlli); - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_RESUME; - - bssgp_msgb_tlli_put(msg, 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); -} - -/*! \brief Transmit RA-CAPABILITY-UPDATE (10.3.3) */ -int bssgp_tx_ra_capa_upd(struct bssgp_bvc_ctx *bctx, uint32_t tlli, uint8_t tag) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx RA-CAPA-UPD (TLLI=0x%04x)\n", - bctx->bvci, tlli); - - /* set NSEI and BVCI in msgb cb */ - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = bctx->bvci; - - bgph->pdu_type = BSSGP_PDUT_RA_CAPA_UDPATE; - bssgp_msgb_tlli_put(msg, tlli); - - msgb_tvlv_put(msg, BSSGP_IE_TAG, 1, &tag); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* first common part of RADIO-STATUS */ -static struct msgb *common_tx_radio_status(struct bssgp_bvc_ctx *bctx) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx RADIO-STATUS ", - bctx->bvci); - - /* set NSEI and BVCI in msgb cb */ - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = bctx->bvci; - - bgph->pdu_type = BSSGP_PDUT_RADIO_STATUS; - - return msg; -} - -/* second common part of RADIO-STATUS */ -static int common_tx_radio_status2(struct msgb *msg, uint8_t cause) -{ - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, &cause); - LOGPC(DBSSGP, LOGL_NOTICE, "CAUSE=%u\n", cause); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief Transmit RADIO-STATUS for TLLI (10.3.5) */ -int bssgp_tx_radio_status_tlli(struct bssgp_bvc_ctx *bctx, uint8_t cause, - uint32_t tlli) -{ - struct msgb *msg = common_tx_radio_status(bctx); - - if (!msg) - return -ENOMEM; - bssgp_msgb_tlli_put(msg, tlli); - LOGPC(DBSSGP, LOGL_NOTICE, "TLLI=0x%08x ", tlli); - - return common_tx_radio_status2(msg, cause); -} - -/*! \brief Transmit RADIO-STATUS for TMSI (10.3.5) */ -int bssgp_tx_radio_status_tmsi(struct bssgp_bvc_ctx *bctx, uint8_t cause, - uint32_t tmsi) -{ - struct msgb *msg = common_tx_radio_status(bctx); - uint32_t _tmsi = htonl(tmsi); - - if (!msg) - return -ENOMEM; - msgb_tvlv_put(msg, BSSGP_IE_TMSI, 4, (uint8_t *)&_tmsi); - LOGPC(DBSSGP, LOGL_NOTICE, "TMSI=0x%08x ", tmsi); - - return common_tx_radio_status2(msg, cause); -} - -/*! \brief Transmit RADIO-STATUS for IMSI (10.3.5) */ -int bssgp_tx_radio_status_imsi(struct bssgp_bvc_ctx *bctx, uint8_t cause, - const char *imsi) -{ - struct msgb *msg = common_tx_radio_status(bctx); - uint8_t mi[10]; - int imsi_len = gsm48_generate_mid_from_imsi(mi, imsi); - - if (!msg) - return -ENOMEM; - - /* strip the MI type and length values (2 bytes) */ - if (imsi_len > 2) - msgb_tvlv_put(msg, BSSGP_IE_IMSI, imsi_len-2, mi+2); - LOGPC(DBSSGP, LOGL_NOTICE, "IMSI=%s ", imsi); - - return common_tx_radio_status2(msg, cause); -} - -/*! \brief Transmit FLUSH-LL-ACK (Chapter 10.4.2) */ -int bssgp_tx_flush_ll_ack(struct bssgp_bvc_ctx *bctx, uint32_t tlli, - uint8_t action, uint16_t bvci_new, - uint32_t num_octets) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci_new = htons(bvci_new); - uint32_t _oct_aff = htonl(num_octets & 0xFFFFFF); - - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_FLUSH_LL_ACK; - - bssgp_msgb_tlli_put(msg, tlli); - msgb_tvlv_put(msg, BSSGP_IE_FLUSH_ACTION, 1, &action); - if (action == 1) /* transferred */ - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci_new); - msgb_tvlv_put(msg, BSSGP_IE_NUM_OCT_AFF, 3, (uint8_t *) &_oct_aff); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief Transmit LLC-DISCARDED (Chapter 10.4.3) */ -int bssgp_tx_llc_discarded(struct bssgp_bvc_ctx *bctx, uint32_t tlli, - uint8_t num_frames, uint32_t num_octets) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci = htons(bctx->bvci); - uint32_t _oct_aff = htonl(num_octets & 0xFFFFFF); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx LLC-DISCARDED " - "TLLI=0x%04x, FRAMES=%u, OCTETS=%u\n", bctx->bvci, tlli, - num_frames, num_octets); - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_LLC_DISCARD; - - bssgp_msgb_tlli_put(msg, tlli); - - msgb_tvlv_put(msg, BSSGP_IE_LLC_FRAMES_DISCARDED, 1, &num_frames); - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - msgb_tvlv_put(msg, BSSGP_IE_NUM_OCT_AFF, 3, (uint8_t *) &_oct_aff); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief Transmit a BVC-BLOCK message (Chapter 10.4.8) */ -int bssgp_tx_bvc_block(struct bssgp_bvc_ctx *bctx, uint8_t cause) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci = htons(bctx->bvci); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx BVC-BLOCK " - "CAUSE=%u\n", bctx->bvci, cause); - - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_BVC_BLOCK; - - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, &cause); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief Transmit a BVC-UNBLOCK message (Chapter 10.4.10) */ -int bssgp_tx_bvc_unblock(struct bssgp_bvc_ctx *bctx) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci = htons(bctx->bvci); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx BVC-BLOCK\n", bctx->bvci); - - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_BVC_UNBLOCK; - - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/*! \brief Transmit a BVC-RESET message (Chapter 10.4.12) */ -int bssgp_tx_bvc_reset(struct bssgp_bvc_ctx *bctx, uint16_t bvci, uint8_t cause) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci = htons(bvci); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP (BVCI=%u) Tx BVC-RESET " - "CAUSE=%u\n", bvci, cause); - - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = 0; /* Signalling */ - bgph->pdu_type = BSSGP_PDUT_BVC_RESET; - - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, &cause); - if (bvci != BVCI_PTM) { - uint8_t bssgp_cid[8]; - bssgp_create_cell_id(bssgp_cid, &bctx->ra_id, bctx->cell_id); - msgb_tvlv_put(msg, BSSGP_IE_CELL_ID, sizeof(bssgp_cid), bssgp_cid); - } - /* Optional: Feature Bitmap */ - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - - -/*! \brief RL-UL-UNITDATA.req (Chapter 10.2.2) */ -int bssgp_tx_ul_ud(struct bssgp_bvc_ctx *bctx, uint32_t tlli, - const uint8_t *qos_profile, struct msgb *llc_pdu) -{ - struct msgb *msg = llc_pdu; - uint8_t bssgp_cid[8]; - struct bssgp_ud_hdr *budh; - - /* FIXME: First push alignment octets, if rqd */ - - /* FIXME: Optional LSA Identifier List, PFI */ - - /* Cell Identifier */ - bssgp_create_cell_id(bssgp_cid, &bctx->ra_id, bctx->cell_id); - msgb_tvlv_push(msg, BSSGP_IE_CELL_ID, sizeof(bssgp_cid), bssgp_cid); - - /* User Data Header */ - budh = (struct bssgp_ud_hdr *) msgb_push(msg, sizeof(*budh)); - budh->tlli = htonl(tlli); - memcpy(budh->qos_profile, qos_profile, 3); - budh->pdu_type = BSSGP_PDUT_UL_UNITDATA; - - /* set NSEI and BVCI in msgb cb */ - msgb_nsei(msg) = bctx->nsei; - msgb_bvci(msg) = bctx->bvci; - - rate_ctr_inc(&bctx->ctrg->ctr[BSSGP_CTR_PKTS_OUT]); - rate_ctr_add(&bctx->ctrg->ctr[BSSGP_CTR_BYTES_OUT], msg->len); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* Parse a single GMM-PAGING.req to a given NSEI/NS-BVCI */ -int bssgp_rx_paging(struct bssgp_paging_info *pinfo, - struct msgb *msg) -{ - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_bssgph(msg); - struct tlv_parsed tp; - uint8_t ra[6]; - int rc, data_len; - - memset(ra, 0, sizeof(ra)); - - data_len = msgb_bssgp_len(msg) - sizeof(*bgph); - rc = bssgp_tlv_parse(&tp, bgph->data, data_len); - if (rc < 0) - goto err_mand_ie; - - switch (bgph->pdu_type) { - case BSSGP_PDUT_PAGING_PS: - pinfo->mode = BSSGP_PAGING_PS; - break; - case BSSGP_PDUT_PAGING_CS: - pinfo->mode = BSSGP_PAGING_CS; - break; - default: - return -EINVAL; - } - - /* IMSI */ - if (!TLVP_PRESENT(&tp, BSSGP_IE_IMSI)) - goto err_mand_ie; - if (!pinfo->imsi) - pinfo->imsi = talloc_zero_size(pinfo, 16); - gsm48_mi_to_string(pinfo->imsi, sizeof(pinfo->imsi), - TLVP_VAL(&tp, BSSGP_IE_IMSI), - TLVP_LEN(&tp, BSSGP_IE_IMSI)); - - /* DRX Parameters */ - if (!TLVP_PRESENT(&tp, BSSGP_IE_DRX_PARAMS)) - goto err_mand_ie; - pinfo->drx_params = ntohs(*(uint16_t *)TLVP_VAL(&tp, BSSGP_IE_DRX_PARAMS)); - - /* Scope */ - if (TLVP_PRESENT(&tp, BSSGP_IE_BSS_AREA_ID)) { - pinfo->scope = BSSGP_PAGING_BSS_AREA; - } else if (TLVP_PRESENT(&tp, BSSGP_IE_LOCATION_AREA)) { - pinfo->scope = BSSGP_PAGING_LOCATION_AREA; - memcpy(ra, TLVP_VAL(&tp, BSSGP_IE_LOCATION_AREA), - TLVP_LEN(&tp, BSSGP_IE_LOCATION_AREA)); - gsm48_parse_ra(&pinfo->raid, ra); - } else if (TLVP_PRESENT(&tp, BSSGP_IE_ROUTEING_AREA)) { - pinfo->scope = BSSGP_PAGING_ROUTEING_AREA; - memcpy(ra, TLVP_VAL(&tp, BSSGP_IE_ROUTEING_AREA), - TLVP_LEN(&tp, BSSGP_IE_ROUTEING_AREA)); - gsm48_parse_ra(&pinfo->raid, ra); - } else if (TLVP_PRESENT(&tp, BSSGP_IE_BVCI)) { - pinfo->scope = BSSGP_PAGING_BVCI; - pinfo->bvci = ntohs(*(uint16_t *)TLVP_VAL(&tp, BSSGP_IE_BVCI)); - } else - return -EINVAL; - - /* QoS profile mandatory for PS */ - if (pinfo->mode == BSSGP_PAGING_PS) { - if (!TLVP_PRESENT(&tp, BSSGP_IE_QOS_PROFILE)) - goto err_cond_ie; - if (TLVP_LEN(&tp, BSSGP_IE_QOS_PROFILE) < 3) - goto err; - - memcpy(&pinfo->qos, TLVP_VAL(&tp, BSSGP_IE_QOS_PROFILE), - 3); - } - - /* Optional (P-)TMSI */ - if (TLVP_PRESENT(&tp, BSSGP_IE_TMSI) && - TLVP_LEN(&tp, BSSGP_IE_TMSI) >= 4) - if (!pinfo->ptmsi) - pinfo->ptmsi = talloc_zero_size(pinfo, sizeof(uint32_t)); - *(pinfo->ptmsi) = ntohl(*(uint32_t *) - TLVP_VAL(&tp, BSSGP_IE_TMSI)); - - return 0; - -err_mand_ie: -err_cond_ie: -err: - /* FIXME */ - return 0; -} diff --git a/openbsc/src/libgb/gprs_bssgp_util.c b/openbsc/src/libgb/gprs_bssgp_util.c deleted file mode 100644 index ae4647ef2..000000000 --- a/openbsc/src/libgb/gprs_bssgp_util.c +++ /dev/null @@ -1,117 +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 . - * - */ - -#include -#include - -#include - -#include -#include -#include -#include -#include - -#include "common_vty.h" - -struct gprs_ns_inst *bssgp_nsi; - -/* BSSGP Protocol specific, not implementation specific */ -/* FIXME: This needs to go into libosmocore after finished */ - -/* Chapter 11.3.9 / Table 11.10: Cause coding */ -static const struct value_string bssgp_cause_strings[] = { - { BSSGP_CAUSE_PROC_OVERLOAD, "Processor overload" }, - { BSSGP_CAUSE_EQUIP_FAIL, "Equipment Failure" }, - { BSSGP_CAUSE_TRASIT_NET_FAIL, "Transit netowkr service failure" }, - { BSSGP_CAUSE_CAPA_GREATER_0KPBS,"Transmission capacity modified" }, - { BSSGP_CAUSE_UNKNOWN_MS, "Unknown MS" }, - { BSSGP_CAUSE_UNKNOWN_BVCI, "Unknown BVCI" }, - { BSSGP_CAUSE_CELL_TRAF_CONG, "Cell traffic congestion" }, - { BSSGP_CAUSE_SGSN_CONG, "SGSN congestion" }, - { BSSGP_CAUSE_OML_INTERV, "O&M intervention" }, - { BSSGP_CAUSE_BVCI_BLOCKED, "BVCI blocked" }, - { BSSGP_CAUSE_PFC_CREATE_FAIL, "PFC create failure" }, - { BSSGP_CAUSE_SEM_INCORR_PDU, "Semantically incorrect PDU" }, - { BSSGP_CAUSE_INV_MAND_INF, "Invalid mandatory information" }, - { BSSGP_CAUSE_MISSING_MAND_IE, "Missing mandatory IE" }, - { BSSGP_CAUSE_MISSING_COND_IE, "Missing conditional IE" }, - { BSSGP_CAUSE_UNEXP_COND_IE, "Unexpected conditional IE" }, - { BSSGP_CAUSE_COND_IE_ERR, "Conditional IE error" }, - { BSSGP_CAUSE_PDU_INCOMP_STATE, "PDU incompatible with protocol state" }, - { BSSGP_CAUSE_PROTO_ERR_UNSPEC, "Protocol error - unspecified" }, - { BSSGP_CAUSE_PDU_INCOMP_FEAT, "PDU not compatible with feature set" }, - { 0, NULL }, -}; - -const char *bssgp_cause_str(enum gprs_bssgp_cause cause) -{ - return get_value_string(bssgp_cause_strings, cause); -} - - -struct msgb *bssgp_msgb_alloc(void) -{ - return msgb_alloc_headroom(4096, 128, "BSSGP"); -} - -/* 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) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - uint16_t _bvci; - - msgb_nsei(msg) = nsei; - msgb_bvci(msg) = ns_bvci; - - bgph->pdu_type = pdu_type; - _bvci = htons(bvci); - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} - -/* Chapter 10.4.14: Status */ -int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg) -{ - struct msgb *msg = bssgp_msgb_alloc(); - struct bssgp_normal_hdr *bgph = - (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - - LOGP(DBSSGP, LOGL_NOTICE, "BSSGP BVCI=%u Tx STATUS, cause=%s\n", - bvci ? *bvci : 0, bssgp_cause_str(cause)); - msgb_nsei(msg) = msgb_nsei(orig_msg); - msgb_bvci(msg) = 0; - - bgph->pdu_type = BSSGP_PDUT_STATUS; - msgb_tvlv_put(msg, BSSGP_IE_CAUSE, 1, &cause); - if (bvci) { - uint16_t _bvci = htons(*bvci); - msgb_tvlv_put(msg, BSSGP_IE_BVCI, 2, (uint8_t *) &_bvci); - } - msgb_tvlv_put(msg, BSSGP_IE_PDU_IN_ERROR, - msgb_bssgp_len(orig_msg), msgb_bssgph(orig_msg)); - - return gprs_ns_sendmsg(bssgp_nsi, msg); -} diff --git a/openbsc/src/libgb/gprs_bssgp_vty.c b/openbsc/src/libgb/gprs_bssgp_vty.c deleted file mode 100644 index aa1f10656..000000000 --- a/openbsc/src/libgb/gprs_bssgp_vty.c +++ /dev/null @@ -1,187 +0,0 @@ -/* VTY interface for our GPRS BSS Gateway Protocol (BSSGP) implementation */ - -/* (C) 2010 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 . - * - */ - -#include -#include -#include -#include - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "common_vty.h" - -/* FIXME: this should go to some common file as it is copied - * in vty_interface.c of the BSC */ -static const struct value_string gprs_bssgp_timer_strs[] = { - { 0, NULL } -}; - -static void log_set_bvc_filter(struct log_target *target, - struct bssgp_bvc_ctx *bctx) -{ - if (bctx) { - target->filter_map |= (1 << FLT_BVC); - target->filter_data[FLT_BVC] = bctx; - } else if (target->filter_data[FLT_NSVC]) { - target->filter_map = ~(1 << FLT_BVC); - target->filter_data[FLT_BVC] = NULL; - } -} - -static struct cmd_node bssgp_node = { - L_BSSGP_NODE, - "%s(bssgp)#", - 1, -}; - -static int config_write_bssgp(struct vty *vty) -{ - vty_out(vty, "bssgp%s", VTY_NEWLINE); - - return CMD_SUCCESS; -} - -DEFUN(cfg_bssgp, cfg_bssgp_cmd, - "bssgp", - "Configure the GPRS BSS Gateway Protocol") -{ - vty->node = L_BSSGP_NODE; - return CMD_SUCCESS; -} - -static void dump_bvc(struct vty *vty, struct bssgp_bvc_ctx *bvc, int stats) -{ - vty_out(vty, "NSEI %5u, BVCI %5u, RA-ID: %u-%u-%u-%u, CID: %u, " - "STATE: %s%s", bvc->nsei, bvc->bvci, bvc->ra_id.mcc, - bvc->ra_id.mnc, bvc->ra_id.lac, bvc->ra_id.rac, bvc->cell_id, - bvc->state & BVC_S_BLOCKED ? "BLOCKED" : "UNBLOCKED", - VTY_NEWLINE); - if (stats) - vty_out_rate_ctr_group(vty, " ", bvc->ctrg); -} - -static void dump_bssgp(struct vty *vty, int stats) -{ - struct bssgp_bvc_ctx *bvc; - - llist_for_each_entry(bvc, &bssgp_bvc_ctxts, list) { - dump_bvc(vty, bvc, stats); - } -} - -#define BSSGP_STR "Show information about the BSSGP protocol\n" - -DEFUN(show_bssgp, show_bssgp_cmd, "show bssgp", - SHOW_STR BSSGP_STR) -{ - dump_bssgp(vty, 0); - return CMD_SUCCESS; -} - -DEFUN(show_bssgp_stats, show_bssgp_stats_cmd, "show bssgp stats", - SHOW_STR BSSGP_STR - "Include statistics\n") -{ - dump_bssgp(vty, 1); - return CMD_SUCCESS; -} - -DEFUN(show_bvc, show_bvc_cmd, "show bssgp nsei <0-65535> [stats]", - SHOW_STR BSSGP_STR - "Show all BVCs on one NSE\n" - "The NSEI\n" "Include Statistics\n") -{ - struct bssgp_bvc_ctx *bvc; - uint16_t nsei = atoi(argv[1]); - int show_stats = 0; - - if (argc >= 2) - show_stats = 1; - - llist_for_each_entry(bvc, &bssgp_bvc_ctxts, list) { - if (bvc->nsei != nsei) - continue; - dump_bvc(vty, bvc, show_stats); - } - - return CMD_SUCCESS; -} - -DEFUN(logging_fltr_bvc, - logging_fltr_bvc_cmd, - "logging filter bvc nsei <0-65535> bvci <0-65535>", - LOGGING_STR FILTER_STR - "Filter based on BSSGP Virtual Connection\n" - "NSEI of the BVC to be filtered\n" - "Network Service Entity Identifier (NSEI)\n" - "BVCI of the BVC to be filtered\n" - "BSSGP Virtual Connection Identifier (BVCI)\n") -{ - struct log_target *tgt = osmo_log_vty2tgt(vty); - struct bssgp_bvc_ctx *bvc; - uint16_t nsei = atoi(argv[0]); - uint16_t bvci = atoi(argv[1]); - - if (!tgt) - return CMD_WARNING; - - bvc = btsctx_by_bvci_nsei(bvci, nsei); - if (!bvc) { - vty_out(vty, "No BVC by that identifier%s", VTY_NEWLINE); - return CMD_WARNING; - } - - log_set_bvc_filter(tgt, bvc); - return CMD_SUCCESS; -} - -int bssgp_vty_init(void) -{ - install_element_ve(&show_bssgp_cmd); - install_element_ve(&show_bssgp_stats_cmd); - install_element_ve(&show_bvc_cmd); - install_element_ve(&logging_fltr_bvc_cmd); - - install_element(CFG_LOG_NODE, &logging_fltr_bvc_cmd); - - install_element(CONFIG_NODE, &cfg_bssgp_cmd); - install_node(&bssgp_node, config_write_bssgp); - install_default(L_BSSGP_NODE); - install_element(L_BSSGP_NODE, &libgb_exit_cmd); - install_element(L_BSSGP_NODE, &libgb_end_cmd); - //install_element(L_BSSGP_NODE, &cfg_bssgp_timer_cmd); - - return 0; -} diff --git a/openbsc/src/libgb/gprs_ns.c b/openbsc/src/libgb/gprs_ns.c deleted file mode 100644 index cdee83382..000000000 --- a/openbsc/src/libgb/gprs_ns.c +++ /dev/null @@ -1,1103 +0,0 @@ -/* 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) */ - -/* (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 . - * - */ - -/*! \addtogroup libgb - * @{ - */ - -/*! \file gprs_ns.c */ - -/*! - * 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) - * - * Some introduction into NS: NS is used typically on top of frame relay, - * but in the ip.access world it is encapsulated in UDP packets. It serves - * as an intermediate shim betwen BSSGP and the underlying medium. It doesn't - * do much, apart from providing congestion notification and status indication. - * - * Terms: - * NS Network Service - * NSVC NS Virtual Connection - * NSEI NS Entity Identifier - * NSVL NS Virtual Link - * NSVLI NS Virtual Link Identifier - * BVC BSSGP Virtual Connection - * BVCI BSSGP Virtual Connection Identifier - * NSVCG NS Virtual Connection Goup - * Blocked NS-VC cannot be used for user traffic - * Alive Ability of a NS-VC to provide communication - * - * There can be multiple BSSGP virtual connections over one (group of) NSVC's. BSSGP will - * therefore identify the BSSGP virtual connection by a BVCI passed down to NS. - * NS then has to firgure out which NSVC's are responsible for this BVCI. - * Those mappings are administratively configured. - */ - -/* This implementation has the following limitations: - * o Only one NS-VC for each NSE: No load-sharing function - * o NSVCI 65535 and 65534 are reserved for internal use - * o Only UDP is supported as of now, no frame relay support - * o The IP Sub-Network-Service (SNS) as specified in 48.016 is not implemented - * o There are no BLOCK and UNBLOCK timers (yet?) - */ - -#include -#include -#include -#include - -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "common_vty.h" - -static const struct tlv_definition ns_att_tlvdef = { - .def = { - [NS_IE_CAUSE] = { TLV_TYPE_TvLV, 0 }, - [NS_IE_VCI] = { TLV_TYPE_TvLV, 0 }, - [NS_IE_PDU] = { TLV_TYPE_TvLV, 0 }, - [NS_IE_BVCI] = { TLV_TYPE_TvLV, 0 }, - [NS_IE_NSEI] = { TLV_TYPE_TvLV, 0 }, - }, -}; - -enum ns_ctr { - NS_CTR_PKTS_IN, - NS_CTR_PKTS_OUT, - NS_CTR_BYTES_IN, - NS_CTR_BYTES_OUT, - NS_CTR_BLOCKED, - NS_CTR_DEAD, -}; - -static const struct rate_ctr_desc nsvc_ctr_description[] = { - { "packets.in", "Packets at NS Level ( In)" }, - { "packets.out","Packets at NS Level (Out)" }, - { "bytes.in", "Bytes at NS Level ( In)" }, - { "bytes.out", "Bytes at NS Level (Out)" }, - { "blocked", "NS-VC Block count " }, - { "dead", "NS-VC gone dead count " }, -}; - -static const struct rate_ctr_group_desc nsvc_ctrg_desc = { - .group_name_prefix = "ns.nsvc", - .group_description = "NSVC Peer Statistics", - .num_ctr = ARRAY_SIZE(nsvc_ctr_description), - .ctr_desc = nsvc_ctr_description, -}; - -/*! \brief Lookup struct gprs_nsvc based on NSVCI - * \param[in] nsi NS instance in which to search - * \param[in] nsvci NSVCI to be searched - * \returns gprs_nsvc of respective NSVCI - */ -struct gprs_nsvc *gprs_nsvc_by_nsvci(struct gprs_ns_inst *nsi, uint16_t nsvci) -{ - struct gprs_nsvc *nsvc; - llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { - if (nsvc->nsvci == nsvci) - return nsvc; - } - return NULL; -} - -/*! \brief Lookup struct gprs_nsvc based on NSEI - * \param[in] nsi NS instance in which to search - * \param[in] nsei NSEI to be searched - * \returns gprs_nsvc of respective NSEI - */ -struct gprs_nsvc *gprs_nsvc_by_nsei(struct gprs_ns_inst *nsi, uint16_t nsei) -{ - struct gprs_nsvc *nsvc; - llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { - if (nsvc->nsei == nsei) - return nsvc; - } - return NULL; -} - -/* Lookup struct gprs_nsvc based on remote peer socket addr */ -static struct gprs_nsvc *nsvc_by_rem_addr(struct gprs_ns_inst *nsi, - struct sockaddr_in *sin) -{ - struct gprs_nsvc *nsvc; - llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { - if (nsvc->ip.bts_addr.sin_addr.s_addr == - sin->sin_addr.s_addr && - nsvc->ip.bts_addr.sin_port == sin->sin_port) - return nsvc; - } - return NULL; -} - -static void gprs_ns_timer_cb(void *data); - -struct gprs_nsvc *gprs_nsvc_create(struct gprs_ns_inst *nsi, uint16_t nsvci) -{ - struct gprs_nsvc *nsvc; - - LOGP(DNS, LOGL_INFO, "NSVCI=%u Creating NS-VC\n", nsvci); - - nsvc = talloc_zero(nsi, struct gprs_nsvc); - nsvc->nsvci = nsvci; - /* before RESET procedure: BLOCKED and DEAD */ - nsvc->state = NSE_S_BLOCKED; - nsvc->nsi = nsi; - nsvc->timer.cb = gprs_ns_timer_cb; - nsvc->timer.data = nsvc; - nsvc->ctrg = rate_ctr_group_alloc(nsvc, &nsvc_ctrg_desc, nsvci); - - llist_add(&nsvc->list, &nsi->gprs_nsvcs); - - return nsvc; -} - -/*! \brief Delete given NS-VC - * \param[in] nsvc gprs_nsvc to be deleted - */ -void gprs_nsvc_delete(struct gprs_nsvc *nsvc) -{ - if (osmo_timer_pending(&nsvc->timer)) - osmo_timer_del(&nsvc->timer); - llist_del(&nsvc->list); - talloc_free(nsvc); -} - -static void ns_osmo_signal_dispatch(struct gprs_nsvc *nsvc, unsigned int signal, - uint8_t cause) -{ - struct ns_signal_data nssd; - - nssd.nsvc = nsvc; - nssd.cause = cause; - - osmo_signal_dispatch(SS_L_NS, signal, &nssd); -} - -/* Section 10.3.2, Table 13 */ -static const struct value_string ns_cause_str[] = { - { NS_CAUSE_TRANSIT_FAIL, "Transit network failure" }, - { NS_CAUSE_OM_INTERVENTION, "O&M intervention" }, - { NS_CAUSE_EQUIP_FAIL, "Equipment failure" }, - { NS_CAUSE_NSVC_BLOCKED, "NS-VC blocked" }, - { NS_CAUSE_NSVC_UNKNOWN, "NS-VC unknown" }, - { NS_CAUSE_BVCI_UNKNOWN, "BVCI unknown" }, - { NS_CAUSE_SEM_INCORR_PDU, "Semantically incorrect PDU" }, - { NS_CAUSE_PDU_INCOMP_PSTATE, "PDU not compatible with protocol state" }, - { NS_CAUSE_PROTO_ERR_UNSPEC, "Protocol error, unspecified" }, - { NS_CAUSE_INVAL_ESSENT_IE, "Invalid essential IE" }, - { NS_CAUSE_MISSING_ESSENT_IE, "Missing essential IE" }, - { 0, NULL } -}; - -/*! \brief Obtain a human-readable string for NS cause value */ -const char *gprs_ns_cause_str(enum ns_cause cause) -{ - return get_value_string(ns_cause_str, cause); -} - -static int nsip_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg); -extern int grps_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg); - -static int gprs_ns_tx(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - int ret; - - log_set_context(GPRS_CTX_NSVC, nsvc); - - /* Increment number of Uplink bytes */ - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_PKTS_OUT]); - rate_ctr_add(&nsvc->ctrg->ctr[NS_CTR_BYTES_OUT], msgb_l2len(msg)); - - switch (nsvc->ll) { - case GPRS_NS_LL_UDP: - ret = nsip_sendmsg(nsvc, msg); - break; - case GPRS_NS_LL_FR_GRE: - ret = gprs_ns_frgre_sendmsg(nsvc, msg); - break; - default: - LOGP(DNS, LOGL_ERROR, "unsupported NS linklayer %u\n", nsvc->ll); - msgb_free(msg); - ret = -EIO; - break; - } - return ret; -} - -static int gprs_ns_tx_simple(struct gprs_nsvc *nsvc, uint8_t pdu_type) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - struct gprs_ns_hdr *nsh; - - log_set_context(GPRS_CTX_NSVC, nsvc); - - if (!msg) - return -ENOMEM; - - msg->l2h = msgb_put(msg, sizeof(*nsh)); - nsh = (struct gprs_ns_hdr *) msg->l2h; - - nsh->pdu_type = pdu_type; - - return gprs_ns_tx(nsvc, msg); -} - -/*! \brief Transmit a NS-RESET on a given NSVC - * \param[in] nsvc NS-VC used for transmission - * \paam[in] cause Numeric NS cause value - */ -int gprs_ns_tx_reset(struct gprs_nsvc *nsvc, uint8_t cause) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - struct gprs_ns_hdr *nsh; - uint16_t nsvci = htons(nsvc->nsvci); - uint16_t nsei = htons(nsvc->nsei); - - log_set_context(GPRS_CTX_NSVC, nsvc); - - if (!msg) - return -ENOMEM; - - LOGP(DNS, LOGL_INFO, "NSEI=%u Tx NS RESET (NSVCI=%u, cause=%s)\n", - nsvc->nsei, nsvc->nsvci, gprs_ns_cause_str(cause)); - - msg->l2h = msgb_put(msg, sizeof(*nsh)); - nsh = (struct gprs_ns_hdr *) msg->l2h; - nsh->pdu_type = NS_PDUT_RESET; - - msgb_tvlv_put(msg, NS_IE_CAUSE, 1, &cause); - msgb_tvlv_put(msg, NS_IE_VCI, 2, (uint8_t *) &nsvci); - msgb_tvlv_put(msg, NS_IE_NSEI, 2, (uint8_t *) &nsei); - - return gprs_ns_tx(nsvc, msg); - -} - -/*! \brief Transmit a NS-STATUS on a given NSVC - * \param[in] nsvc NS-VC to be used for transmission - * \param[in] cause Numeric NS cause value - * \param[in] bvci BVCI to be reset within NSVC - * \param[in] orig_msg message causing the STATUS */ -int gprs_ns_tx_status(struct gprs_nsvc *nsvc, uint8_t cause, - uint16_t bvci, struct msgb *orig_msg) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - struct gprs_ns_hdr *nsh; - uint16_t nsvci = htons(nsvc->nsvci); - - log_set_context(GPRS_CTX_NSVC, nsvc); - - bvci = htons(bvci); - - if (!msg) - return -ENOMEM; - - LOGP(DNS, LOGL_NOTICE, "NSEI=%u Tx NS STATUS (NSVCI=%u, cause=%s)\n", - nsvc->nsei, nsvc->nsvci, gprs_ns_cause_str(cause)); - - msg->l2h = msgb_put(msg, sizeof(*nsh)); - nsh = (struct gprs_ns_hdr *) msg->l2h; - nsh->pdu_type = NS_PDUT_STATUS; - - msgb_tvlv_put(msg, NS_IE_CAUSE, 1, &cause); - - /* Section 9.2.7.1: Static conditions for NS-VCI */ - if (cause == NS_CAUSE_NSVC_BLOCKED || - cause == NS_CAUSE_NSVC_UNKNOWN) - msgb_tvlv_put(msg, NS_IE_VCI, 2, (uint8_t *)&nsvci); - - /* Section 9.2.7.2: Static conditions for NS PDU */ - switch (cause) { - case NS_CAUSE_SEM_INCORR_PDU: - case NS_CAUSE_PDU_INCOMP_PSTATE: - case NS_CAUSE_PROTO_ERR_UNSPEC: - case NS_CAUSE_INVAL_ESSENT_IE: - case NS_CAUSE_MISSING_ESSENT_IE: - msgb_tvlv_put(msg, NS_IE_PDU, msgb_l2len(orig_msg), - orig_msg->l2h); - break; - default: - break; - } - - /* Section 9.2.7.3: Static conditions for BVCI */ - if (cause == NS_CAUSE_BVCI_UNKNOWN) - msgb_tvlv_put(msg, NS_IE_VCI, 2, (uint8_t *)&bvci); - - return gprs_ns_tx(nsvc, msg); -} - -/*! \brief Transmit a NS-BLOCK on a tiven NS-VC - * \param[in] nsvc NS-VC on which the NS-BLOCK is to be transmitted - * \param[in] cause Numeric NS Cause value - * \returns 0 in case of success - */ -int gprs_ns_tx_block(struct gprs_nsvc *nsvc, uint8_t cause) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - struct gprs_ns_hdr *nsh; - uint16_t nsvci = htons(nsvc->nsvci); - - log_set_context(GPRS_CTX_NSVC, nsvc); - - if (!msg) - return -ENOMEM; - - LOGP(DNS, LOGL_INFO, "NSEI=%u Tx NS BLOCK (NSVCI=%u, cause=%s)\n", - nsvc->nsei, nsvc->nsvci, gprs_ns_cause_str(cause)); - - /* be conservative and mark it as blocked even now! */ - nsvc->state |= NSE_S_BLOCKED; - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_BLOCKED]); - - msg->l2h = msgb_put(msg, sizeof(*nsh)); - nsh = (struct gprs_ns_hdr *) msg->l2h; - nsh->pdu_type = NS_PDUT_BLOCK; - - msgb_tvlv_put(msg, NS_IE_CAUSE, 1, &cause); - msgb_tvlv_put(msg, NS_IE_VCI, 2, (uint8_t *) &nsvci); - - return gprs_ns_tx(nsvc, msg); -} - -/*! \brief Transmit a NS-UNBLOCK on a given NS-VC - * \param[in] nsvc NS-VC on which the NS-UNBLOCK is to be transmitted - * \returns 0 in case of success - */ -int gprs_ns_tx_unblock(struct gprs_nsvc *nsvc) -{ - log_set_context(GPRS_CTX_NSVC, nsvc); - LOGP(DNS, LOGL_INFO, "NSEI=%u Tx NS UNBLOCK (NSVCI=%u)\n", - nsvc->nsei, nsvc->nsvci); - - return gprs_ns_tx_simple(nsvc, NS_PDUT_UNBLOCK); -} - -/*! \brief Transmit a NS-ALIVE on a given NS-VC - * \param[in] nsvc NS-VC on which the NS-ALIVE is to be transmitted - * \returns 0 in case of success - */ -int gprs_ns_tx_alive(struct gprs_nsvc *nsvc) -{ - log_set_context(GPRS_CTX_NSVC, nsvc); - LOGP(DNS, LOGL_DEBUG, "NSEI=%u Tx NS ALIVE (NSVCI=%u)\n", - nsvc->nsei, nsvc->nsvci); - - return gprs_ns_tx_simple(nsvc, NS_PDUT_ALIVE); -} - -/*! \brief Transmit a NS-ALIVE-ACK on a given NS-VC - * \param[in] nsvc NS-VC on which the NS-ALIVE-ACK is to be transmitted - * \returns 0 in case of success - */ -int gprs_ns_tx_alive_ack(struct gprs_nsvc *nsvc) -{ - log_set_context(GPRS_CTX_NSVC, nsvc); - LOGP(DNS, LOGL_DEBUG, "NSEI=%u Tx NS ALIVE_ACK (NSVCI=%u)\n", - nsvc->nsei, nsvc->nsvci); - - return gprs_ns_tx_simple(nsvc, NS_PDUT_ALIVE_ACK); -} - -static const enum ns_timeout timer_mode_tout[_NSVC_TIMER_NR] = { - [NSVC_TIMER_TNS_RESET] = NS_TOUT_TNS_RESET, - [NSVC_TIMER_TNS_ALIVE] = NS_TOUT_TNS_ALIVE, - [NSVC_TIMER_TNS_TEST] = NS_TOUT_TNS_TEST, -}; - -static const struct value_string timer_mode_strs[] = { - { NSVC_TIMER_TNS_RESET, "tns-reset" }, - { NSVC_TIMER_TNS_ALIVE, "tns-alive" }, - { NSVC_TIMER_TNS_TEST, "tns-test" }, - { 0, NULL } -}; - -static void nsvc_start_timer(struct gprs_nsvc *nsvc, enum nsvc_timer_mode mode) -{ - enum ns_timeout tout = timer_mode_tout[mode]; - unsigned int seconds = nsvc->nsi->timeout[tout]; - - log_set_context(GPRS_CTX_NSVC, nsvc); - DEBUGP(DNS, "NSEI=%u Starting timer in mode %s (%u seconds)\n", - nsvc->nsei, get_value_string(timer_mode_strs, mode), - seconds); - - if (osmo_timer_pending(&nsvc->timer)) - osmo_timer_del(&nsvc->timer); - - nsvc->timer_mode = mode; - osmo_timer_schedule(&nsvc->timer, seconds, 0); -} - -static void gprs_ns_timer_cb(void *data) -{ - struct gprs_nsvc *nsvc = data; - enum ns_timeout tout = timer_mode_tout[nsvc->timer_mode]; - unsigned int seconds = nsvc->nsi->timeout[tout]; - - log_set_context(GPRS_CTX_NSVC, nsvc); - DEBUGP(DNS, "NSEI=%u Timer expired in mode %s (%u seconds)\n", - nsvc->nsei, get_value_string(timer_mode_strs, nsvc->timer_mode), - seconds); - - switch (nsvc->timer_mode) { - case NSVC_TIMER_TNS_ALIVE: - /* Tns-alive case: we expired without response ! */ - nsvc->alive_retries++; - if (nsvc->alive_retries > - nsvc->nsi->timeout[NS_TOUT_TNS_ALIVE_RETRIES]) { - /* mark as dead and blocked */ - nsvc->state = NSE_S_BLOCKED; - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_BLOCKED]); - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_DEAD]); - LOGP(DNS, LOGL_NOTICE, - "NSEI=%u Tns-alive expired more then " - "%u times, blocking NS-VC\n", nsvc->nsei, - nsvc->nsi->timeout[NS_TOUT_TNS_ALIVE_RETRIES]); - ns_osmo_signal_dispatch(nsvc, S_NS_ALIVE_EXP, 0); - ns_osmo_signal_dispatch(nsvc, S_NS_BLOCK, NS_CAUSE_NSVC_BLOCKED); - return; - } - /* Tns-test case: send NS-ALIVE PDU */ - gprs_ns_tx_alive(nsvc); - /* start Tns-alive timer */ - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_ALIVE); - break; - case NSVC_TIMER_TNS_TEST: - /* Tns-test case: send NS-ALIVE PDU */ - gprs_ns_tx_alive(nsvc); - /* start Tns-alive timer (transition into faster - * alive retransmissions) */ - nsvc->alive_retries = 0; - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_ALIVE); - break; - case NSVC_TIMER_TNS_RESET: - /* Chapter 7.3: Re-send the RESET */ - gprs_ns_tx_reset(nsvc, NS_CAUSE_OM_INTERVENTION); - /* Re-start Tns-reset timer */ - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_RESET); - break; - case _NSVC_TIMER_NR: - break; - } -} - -/* Section 9.2.6 */ -static int gprs_ns_tx_reset_ack(struct gprs_nsvc *nsvc) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - struct gprs_ns_hdr *nsh; - uint16_t nsvci, nsei; - - log_set_context(GPRS_CTX_NSVC, nsvc); - if (!msg) - return -ENOMEM; - - nsvci = htons(nsvc->nsvci); - nsei = htons(nsvc->nsei); - - msg->l2h = msgb_put(msg, sizeof(*nsh)); - nsh = (struct gprs_ns_hdr *) msg->l2h; - - nsh->pdu_type = NS_PDUT_RESET_ACK; - - LOGP(DNS, LOGL_INFO, "NSEI=%u Tx NS RESET ACK (NSVCI=%u)\n", - nsvc->nsei, nsvc->nsvci); - - msgb_tvlv_put(msg, NS_IE_VCI, 2, (uint8_t *)&nsvci); - msgb_tvlv_put(msg, NS_IE_NSEI, 2, (uint8_t *)&nsei); - - return gprs_ns_tx(nsvc, msg); -} - -/*! \brief High-level function for transmitting a NS-UNITDATA messsage - * \param[in] nsi NS-instance on which we shall transmit - * \param[in] msg struct msgb to be trasnmitted - * - * This function obtains the NS-VC by the msgb_nsei(msg) and then checks - * if the NS-VC is ALIVEV and not BLOCKED. After that, it adds a NS - * header for the NS-UNITDATA message type and sends it off. - * - * Section 9.2.10: transmit side / NS-UNITDATA-REQUEST primitive - */ -int gprs_ns_sendmsg(struct gprs_ns_inst *nsi, struct msgb *msg) -{ - struct gprs_nsvc *nsvc; - struct gprs_ns_hdr *nsh; - uint16_t bvci = msgb_bvci(msg); - - nsvc = gprs_nsvc_by_nsei(nsi, msgb_nsei(msg)); - if (!nsvc) { - LOGP(DNS, LOGL_ERROR, "Unable to resolve NSEI %u " - "to NS-VC!\n", msgb_nsei(msg)); - msgb_free(msg); - return -EINVAL; - } - log_set_context(GPRS_CTX_NSVC, nsvc); - - if (!(nsvc->state & NSE_S_ALIVE)) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u is not alive, cannot send\n", - nsvc->nsei); - msgb_free(msg); - return -EBUSY; - } - if (nsvc->state & NSE_S_BLOCKED) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u is blocked, cannot send\n", - nsvc->nsei); - msgb_free(msg); - return -EBUSY; - } - - msg->l2h = msgb_push(msg, sizeof(*nsh) + 3); - nsh = (struct gprs_ns_hdr *) msg->l2h; - if (!nsh) { - LOGP(DNS, LOGL_ERROR, "Not enough headroom for NS header\n"); - msgb_free(msg); - return -EIO; - } - - nsh->pdu_type = NS_PDUT_UNITDATA; - /* spare octet in data[0] */ - nsh->data[1] = bvci >> 8; - nsh->data[2] = bvci & 0xff; - - return gprs_ns_tx(nsvc, msg); -} - -/* Section 9.2.10: receive side */ -static int gprs_ns_rx_unitdata(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - struct gprs_ns_hdr *nsh = (struct gprs_ns_hdr *)msg->l2h; - uint16_t bvci; - - if (nsvc->state & NSE_S_BLOCKED) - return gprs_ns_tx_status(nsvc, NS_CAUSE_NSVC_BLOCKED, - 0, msg); - - /* spare octet in data[0] */ - bvci = nsh->data[1] << 8 | nsh->data[2]; - msgb_bssgph(msg) = &nsh->data[3]; - msgb_bvci(msg) = bvci; - - /* call upper layer (BSSGP) */ - return nsvc->nsi->cb(GPRS_NS_EVT_UNIT_DATA, nsvc, msg, bvci); -} - -/* Section 9.2.7 */ -static int gprs_ns_rx_status(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - struct gprs_ns_hdr *nsh = (struct gprs_ns_hdr *) msg->l2h; - struct tlv_parsed tp; - uint8_t cause; - int rc; - - LOGP(DNS, LOGL_NOTICE, "NSEI=%u Rx NS STATUS ", nsvc->nsei); - - rc = tlv_parse(&tp, &ns_att_tlvdef, nsh->data, - msgb_l2len(msg) - sizeof(*nsh), 0, 0); - if (rc < 0) { - LOGPC(DNS, LOGL_NOTICE, "Error during TLV Parse\n"); - LOGP(DNS, LOGL_ERROR, "NSEI=%u Rx NS STATUS: " - "Error during TLV Parse\n", nsvc->nsei); - return rc; - } - - if (!TLVP_PRESENT(&tp, NS_IE_CAUSE)) { - LOGPC(DNS, LOGL_INFO, "missing cause IE\n"); - return -EINVAL; - } - - cause = *TLVP_VAL(&tp, NS_IE_CAUSE); - LOGPC(DNS, LOGL_NOTICE, "cause=%s\n", gprs_ns_cause_str(cause)); - - return 0; -} - -/* Section 7.3 */ -static int gprs_ns_rx_reset(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - struct gprs_ns_hdr *nsh = (struct gprs_ns_hdr *) msg->l2h; - struct tlv_parsed tp; - uint8_t *cause; - uint16_t *nsvci, *nsei; - int rc; - - rc = tlv_parse(&tp, &ns_att_tlvdef, nsh->data, - msgb_l2len(msg) - sizeof(*nsh), 0, 0); - if (rc < 0) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u Rx NS RESET " - "Error during TLV Parse\n", nsvc->nsei); - return rc; - } - - if (!TLVP_PRESENT(&tp, NS_IE_CAUSE) || - !TLVP_PRESENT(&tp, NS_IE_VCI) || - !TLVP_PRESENT(&tp, NS_IE_NSEI)) { - LOGP(DNS, LOGL_ERROR, "NS RESET Missing mandatory IE\n"); - gprs_ns_tx_status(nsvc, NS_CAUSE_MISSING_ESSENT_IE, 0, msg); - return -EINVAL; - } - - cause = (uint8_t *) TLVP_VAL(&tp, NS_IE_CAUSE); - nsvci = (uint16_t *) TLVP_VAL(&tp, NS_IE_VCI); - nsei = (uint16_t *) TLVP_VAL(&tp, NS_IE_NSEI); - - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS RESET (NSVCI=%u, cause=%s)\n", - nsvc->nsvci, nsvc->nsei, gprs_ns_cause_str(*cause)); - - /* Mark NS-VC as blocked and alive */ - nsvc->state = NSE_S_BLOCKED | NSE_S_ALIVE; - - nsvc->nsei = ntohs(*nsei); - nsvc->nsvci = ntohs(*nsvci); - - /* start the test procedure */ - gprs_ns_tx_simple(nsvc, NS_PDUT_ALIVE); - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_TEST); - - /* inform interested parties about the fact that this NSVC - * has received RESET */ - ns_osmo_signal_dispatch(nsvc, S_NS_RESET, *cause); - - return gprs_ns_tx_reset_ack(nsvc); -} - -static int gprs_ns_rx_block(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - struct gprs_ns_hdr *nsh = (struct gprs_ns_hdr *) msg->l2h; - struct tlv_parsed tp; - uint8_t *cause; - int rc; - - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS BLOCK\n", nsvc->nsei); - - nsvc->state |= NSE_S_BLOCKED; - - rc = tlv_parse(&tp, &ns_att_tlvdef, nsh->data, - msgb_l2len(msg) - sizeof(*nsh), 0, 0); - if (rc < 0) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u Rx NS BLOCK " - "Error during TLV Parse\n", nsvc->nsei); - return rc; - } - - if (!TLVP_PRESENT(&tp, NS_IE_CAUSE) || - !TLVP_PRESENT(&tp, NS_IE_VCI)) { - LOGP(DNS, LOGL_ERROR, "NS RESET Missing mandatory IE\n"); - gprs_ns_tx_status(nsvc, NS_CAUSE_MISSING_ESSENT_IE, 0, msg); - return -EINVAL; - } - - cause = (uint8_t *) TLVP_VAL(&tp, NS_IE_CAUSE); - //nsvci = (uint16_t *) TLVP_VAL(&tp, NS_IE_VCI); - - ns_osmo_signal_dispatch(nsvc, S_NS_BLOCK, *cause); - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_BLOCKED]); - - return gprs_ns_tx_simple(nsvc, NS_PDUT_BLOCK_ACK); -} - -/*! \brief Receive incoming NS message from underlying transport layer - * \param nsi NS instance to which the data belongs - * \param[in] msg message buffer containing newly-received data - * \param[in] saddr socketaddr from which data was received - * \param[in] ll link-layer type in which data was received - * \returns 0 in case of success, < 0 in case of error - * - * This is the main entry point int othe NS imlementation where frames - * from the underlying transport (normally UDP) enter. - */ -int gprs_ns_rcvmsg(struct gprs_ns_inst *nsi, struct msgb *msg, - struct sockaddr_in *saddr, enum gprs_ns_ll ll) -{ - struct gprs_ns_hdr *nsh = (struct gprs_ns_hdr *) msg->l2h; - struct gprs_nsvc *nsvc; - int rc = 0; - - /* look up the NSVC based on source address */ - nsvc = nsvc_by_rem_addr(nsi, saddr); - if (!nsvc) { - struct tlv_parsed tp; - uint16_t nsei; - if (nsh->pdu_type == NS_PDUT_STATUS) { - LOGP(DNS, LOGL_INFO, "Ignoring NS STATUS from %s:%u " - "for non-existing NS-VC\n", - inet_ntoa(saddr->sin_addr), ntohs(saddr->sin_port)); - return 0; - } - /* Only the RESET procedure creates a new NSVC */ - if (nsh->pdu_type != NS_PDUT_RESET) { - /* Since we have no NSVC, we have to use a fake */ - nsvc = nsi->unknown_nsvc; - log_set_context(GPRS_CTX_NSVC, nsvc); - LOGP(DNS, LOGL_INFO, "Rejecting NS PDU type 0x%0x " - "from %s:%u for non-existing NS-VC\n", - nsh->pdu_type, inet_ntoa(saddr->sin_addr), - ntohs(saddr->sin_port)); - nsvc->nsvci = nsvc->nsei = 0xfffe; - nsvc->ip.bts_addr = *saddr; - nsvc->state = NSE_S_ALIVE; - nsvc->ll = ll; -#if 0 - return gprs_ns_tx_reset(nsvc, NS_CAUSE_PDU_INCOMP_PSTATE); -#else - return gprs_ns_tx_status(nsvc, - NS_CAUSE_PDU_INCOMP_PSTATE, 0, - msg); -#endif - } - rc = tlv_parse(&tp, &ns_att_tlvdef, nsh->data, - msgb_l2len(msg) - sizeof(*nsh), 0, 0); - if (rc < 0) { - LOGP(DNS, LOGL_ERROR, "Rx NS RESET Error %d during " - "TLV Parse\n", rc); - return rc; - } - if (!TLVP_PRESENT(&tp, NS_IE_CAUSE) || - !TLVP_PRESENT(&tp, NS_IE_VCI) || - !TLVP_PRESENT(&tp, NS_IE_NSEI)) { - LOGP(DNS, LOGL_ERROR, "NS RESET Missing mandatory IE\n"); - gprs_ns_tx_status(nsvc, NS_CAUSE_MISSING_ESSENT_IE, 0, - msg); - return -EINVAL; - } - nsei = ntohs(*(uint16_t *)TLVP_VAL(&tp, NS_IE_NSEI)); - /* Check if we already know this NSEI, the remote end might - * simply have changed addresses, or it is a SGSN */ - nsvc = gprs_nsvc_by_nsei(nsi, nsei); - if (!nsvc) { - nsvc = gprs_nsvc_create(nsi, 0xffff); - nsvc->ll = ll; - log_set_context(GPRS_CTX_NSVC, nsvc); - LOGP(DNS, LOGL_INFO, "Creating NS-VC for BSS at %s:%u\n", - inet_ntoa(saddr->sin_addr), ntohs(saddr->sin_port)); - } - /* Update the remote peer IP address/port */ - nsvc->ip.bts_addr = *saddr; - } else - msgb_nsei(msg) = nsvc->nsei; - - log_set_context(GPRS_CTX_NSVC, nsvc); - - /* Increment number of Incoming bytes */ - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_PKTS_IN]); - rate_ctr_add(&nsvc->ctrg->ctr[NS_CTR_BYTES_IN], msgb_l2len(msg)); - - switch (nsh->pdu_type) { - case NS_PDUT_ALIVE: - /* If we're dead and blocked and suddenly receive a - * NS-ALIVE out of the blue, we might have been re-started - * and should send a NS-RESET to make sure everything recovers - * fine. */ - if (nsvc->state == NSE_S_BLOCKED) - rc = gprs_ns_tx_reset(nsvc, NS_CAUSE_PDU_INCOMP_PSTATE); - else - rc = gprs_ns_tx_alive_ack(nsvc); - break; - case NS_PDUT_ALIVE_ACK: - /* stop Tns-alive and start Tns-test */ - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_TEST); - if (nsvc->remote_end_is_sgsn) { - /* FIXME: this should be one level higher */ - if (nsvc->state & NSE_S_BLOCKED) - rc = gprs_ns_tx_unblock(nsvc); - } - break; - case NS_PDUT_UNITDATA: - /* actual user data */ - rc = gprs_ns_rx_unitdata(nsvc, msg); - break; - case NS_PDUT_STATUS: - rc = gprs_ns_rx_status(nsvc, msg); - break; - case NS_PDUT_RESET: - rc = gprs_ns_rx_reset(nsvc, msg); - break; - case NS_PDUT_RESET_ACK: - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS RESET ACK\n", nsvc->nsei); - /* mark NS-VC as blocked + active */ - nsvc->state = NSE_S_BLOCKED | NSE_S_ALIVE; - nsvc->remote_state = NSE_S_BLOCKED | NSE_S_ALIVE; - rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_BLOCKED]); - if (nsvc->persistent || nsvc->remote_end_is_sgsn) { - /* stop RESET timer */ - osmo_timer_del(&nsvc->timer); - } - /* Initiate TEST proc.: Send ALIVE and start timer */ - rc = gprs_ns_tx_simple(nsvc, NS_PDUT_ALIVE); - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_TEST); - break; - case NS_PDUT_UNBLOCK: - /* Section 7.2: unblocking procedure */ - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS UNBLOCK\n", nsvc->nsei); - nsvc->state &= ~NSE_S_BLOCKED; - ns_osmo_signal_dispatch(nsvc, S_NS_UNBLOCK, 0); - rc = gprs_ns_tx_simple(nsvc, NS_PDUT_UNBLOCK_ACK); - break; - case NS_PDUT_UNBLOCK_ACK: - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS UNBLOCK ACK\n", nsvc->nsei); - /* mark NS-VC as unblocked + active */ - nsvc->state = NSE_S_ALIVE; - nsvc->remote_state = NSE_S_ALIVE; - ns_osmo_signal_dispatch(nsvc, S_NS_UNBLOCK, 0); - break; - case NS_PDUT_BLOCK: - rc = gprs_ns_rx_block(nsvc, msg); - break; - case NS_PDUT_BLOCK_ACK: - LOGP(DNS, LOGL_INFO, "NSEI=%u Rx NS BLOCK ACK\n", nsvc->nsei); - /* mark remote NS-VC as blocked + active */ - nsvc->remote_state = NSE_S_BLOCKED | NSE_S_ALIVE; - break; - default: - LOGP(DNS, LOGL_NOTICE, "NSEI=%u Rx Unknown NS PDU type 0x%02x\n", - nsvc->nsei, nsh->pdu_type); - rc = -EINVAL; - break; - } - return rc; -} - -/*! \brief Create a new GPRS NS instance - * \param[in] cb Call-back function for incoming BSSGP data - * \returns dynamically allocated gprs_ns_inst - */ -struct gprs_ns_inst *gprs_ns_instantiate(gprs_ns_cb_t *cb, void *ctx) -{ - struct gprs_ns_inst *nsi = talloc_zero(ctx, struct gprs_ns_inst); - - nsi->cb = cb; - INIT_LLIST_HEAD(&nsi->gprs_nsvcs); - nsi->timeout[NS_TOUT_TNS_BLOCK] = 3; - nsi->timeout[NS_TOUT_TNS_BLOCK_RETRIES] = 3; - nsi->timeout[NS_TOUT_TNS_RESET] = 3; - nsi->timeout[NS_TOUT_TNS_RESET_RETRIES] = 3; - nsi->timeout[NS_TOUT_TNS_TEST] = 30; - nsi->timeout[NS_TOUT_TNS_ALIVE] = 3; - nsi->timeout[NS_TOUT_TNS_ALIVE_RETRIES] = 10; - - /* Create the dummy NSVC that we use for sending - * messages to non-existant/unknown NS-VC's */ - nsi->unknown_nsvc = gprs_nsvc_create(nsi, 0xfffe); - llist_del(&nsi->unknown_nsvc->list); - - return nsi; -} - -/*! \brief Destroy an entire NS instance - * \param nsi gprs_ns_inst that is to be destroyed - * - * This function SHOULD release all resources associated with the - * NS-instance but is actually not completely implemented! - */ -void gprs_ns_destroy(struct gprs_ns_inst *nsi) -{ - /* FIXME: clear all timers */ - - /* recursively free the NSI and all its NSVCs */ - talloc_free(nsi); -} - - -/* NS-over-IP code, according to 3GPP TS 48.016 Chapter 6.2 - * We don't support Size Procedure, Configuration Procedure, ChangeWeight Procedure */ - -/* Read a single NS-over-IP message */ -static struct msgb *read_nsip_msg(struct osmo_fd *bfd, int *error, - struct sockaddr_in *saddr) -{ - struct msgb *msg = gprs_ns_msgb_alloc(); - int ret = 0; - socklen_t saddr_len = sizeof(*saddr); - - if (!msg) { - *error = -ENOMEM; - return NULL; - } - - ret = recvfrom(bfd->fd, msg->data, NS_ALLOC_SIZE - NS_ALLOC_HEADROOM, 0, - (struct sockaddr *)saddr, &saddr_len); - if (ret < 0) { - LOGP(DNS, LOGL_ERROR, "recv error %s during NSIP recv\n", - strerror(errno)); - msgb_free(msg); - *error = ret; - return NULL; - } else if (ret == 0) { - msgb_free(msg); - *error = ret; - return NULL; - } - - msg->l2h = msg->data; - msgb_put(msg, ret); - - return msg; -} - -static int handle_nsip_read(struct osmo_fd *bfd) -{ - int error; - struct sockaddr_in saddr; - struct gprs_ns_inst *nsi = bfd->data; - struct msgb *msg = read_nsip_msg(bfd, &error, &saddr); - - if (!msg) - return error; - - error = gprs_ns_rcvmsg(nsi, msg, &saddr, GPRS_NS_LL_UDP); - - msgb_free(msg); - - return error; -} - -static int handle_nsip_write(struct osmo_fd *bfd) -{ - /* FIXME: actually send the data here instead of nsip_sendmsg() */ - return -EIO; -} - -static int nsip_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - int rc; - struct gprs_ns_inst *nsi = nsvc->nsi; - struct sockaddr_in *daddr = &nsvc->ip.bts_addr; - - rc = sendto(nsi->nsip.fd.fd, msg->data, msg->len, 0, - (struct sockaddr *)daddr, sizeof(*daddr)); - - msgb_free(msg); - - return rc; -} - -/* UDP Port 23000 carries the LLC-in-BSSGP-in-NS protocol stack */ -static int nsip_fd_cb(struct osmo_fd *bfd, unsigned int what) -{ - int rc = 0; - - if (what & BSC_FD_READ) - rc = handle_nsip_read(bfd); - if (what & BSC_FD_WRITE) - rc = handle_nsip_write(bfd); - - return rc; -} - -/*! \brief Create a listening socket for GPRS NS/UDP/IP - * \param[in] nsi NS protocol instance to listen - * \returns >=0 (fd) in case of success, negative in case of error - * - * A call to this function will create a UDP socket bound to the port - * number and IP address specified in the NS protocol instance. The - * file descriptor of the socket will be stored in nsi->nsip.fd. - */ -int gprs_ns_nsip_listen(struct gprs_ns_inst *nsi) -{ - struct in_addr in; - int ret; - - in.s_addr = htonl(nsi->nsip.local_ip); - - nsi->nsip.fd.cb = nsip_fd_cb; - nsi->nsip.fd.data = nsi; - ret = osmo_sock_init_ofd(&nsi->nsip.fd, AF_INET, SOCK_DGRAM, - IPPROTO_UDP, inet_ntoa(in), - nsi->nsip.local_port, OSMO_SOCK_F_BIND); - if (ret < 0) - return ret; - - - return ret; -} - -/*! \brief Initiate a RESET procedure - * \param[in] nsvc NS-VC in which to start the procedure - * \param[in] cause Numeric NS cause value - * - * This is a high-level function initiating a NS-RESET procedure. It - * will not only send a NS-RESET, but also set the state to BLOCKED and - * start the Tns-reset timer. - */ -void gprs_nsvc_reset(struct gprs_nsvc *nsvc, uint8_t cause) -{ - LOGP(DNS, LOGL_INFO, "NSEI=%u RESET procedure based on API request\n", - nsvc->nsei); - - /* Mark NS-VC locally as blocked and dead */ - nsvc->state = NSE_S_BLOCKED; - /* Send NS-RESET PDU */ - if (gprs_ns_tx_reset(nsvc, cause) < 0) { - LOGP(DNS, LOGL_ERROR, "NSEI=%u, error resetting NS-VC\n", - nsvc->nsei); - } - /* Start Tns-reset */ - nsvc_start_timer(nsvc, NSVC_TIMER_TNS_RESET); -} - -/*! \brief Establish a NS connection (from the BSS) to the SGSN - * \param nsi NS-instance - * \param[in] dest Destination IP/Port - * \param[in] nsei NSEI of the to-be-established NS-VC - * \param[in] nsvci NSVCI of the to-be-established NS-VC - * \returns struct gprs_nsvc representing the new NS-VC - * - * This function will establish a single NS/UDP/IP connection in uplink - * (BSS to SGSN) direction. - */ -struct gprs_nsvc *gprs_ns_nsip_connect(struct gprs_ns_inst *nsi, - struct sockaddr_in *dest, uint16_t nsei, - uint16_t nsvci) -{ - struct gprs_nsvc *nsvc; - - nsvc = nsvc_by_rem_addr(nsi, dest); - if (!nsvc) - nsvc = gprs_nsvc_create(nsi, nsvci); - nsvc->ip.bts_addr = *dest; - nsvc->nsei = nsei; - nsvc->nsvci = nsvci; - nsvc->remote_end_is_sgsn = 1; - - gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); - return nsvc; -} - -void gprs_ns_set_log_ss(int ss) -{ - DNS = ss; -} - -/*! }@ */ diff --git a/openbsc/src/libgb/gprs_ns_frgre.c b/openbsc/src/libgb/gprs_ns_frgre.c deleted file mode 100644 index be5f0f6c7..000000000 --- a/openbsc/src/libgb/gprs_ns_frgre.c +++ /dev/null @@ -1,310 +0,0 @@ -/* 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) */ - -/* NS-over-FR-over-GRE implementation */ - -/* (C) 2009-2010 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 . - * - */ - -#include -#include -#include - -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "common_vty.h" - -#define GRE_PTYPE_FR 0x6559 -#define GRE_PTYPE_IPv4 0x0800 -#define GRE_PTYPE_KAR 0x0000 /* keepalive response */ - -struct gre_hdr { - uint16_t flags; - uint16_t ptype; -} __attribute__ ((packed)); - -/* IPv4 messages inside the GRE tunnel might be GRE keepalives */ -static int handle_rx_gre_ipv4(struct osmo_fd *bfd, struct msgb *msg, - struct iphdr *iph, struct gre_hdr *greh) -{ - struct gprs_ns_inst *nsi = bfd->data; - int gre_payload_len; - struct iphdr *inner_iph; - struct gre_hdr *inner_greh; - struct sockaddr_in daddr; - struct in_addr ia; - - gre_payload_len = msg->len - (iph->ihl*4 + sizeof(*greh)); - - inner_iph = (struct iphdr *) ((uint8_t *)greh + sizeof(*greh)); - - if (gre_payload_len < inner_iph->ihl*4 + sizeof(*inner_greh)) { - LOGP(DNS, LOGL_ERROR, "GRE keepalive too short\n"); - return -EIO; - } - - if (inner_iph->saddr != iph->daddr || - inner_iph->daddr != iph->saddr) { - LOGP(DNS, LOGL_ERROR, - "GRE keepalive with wrong tunnel addresses\n"); - return -EIO; - } - - if (inner_iph->protocol != IPPROTO_GRE) { - LOGP(DNS, LOGL_ERROR, "GRE keepalive with wrong protocol\n"); - return -EIO; - } - - inner_greh = (struct gre_hdr *) ((uint8_t *)inner_iph + iph->ihl*4); - if (inner_greh->ptype != htons(GRE_PTYPE_KAR)) { - LOGP(DNS, LOGL_ERROR, "GRE keepalive inner GRE type != 0\n"); - return -EIO; - } - - /* Actually send the response back */ - - daddr.sin_family = AF_INET; - daddr.sin_addr.s_addr = inner_iph->daddr; - daddr.sin_port = IPPROTO_GRE; - - ia.s_addr = iph->saddr; - LOGP(DNS, LOGL_DEBUG, "GRE keepalive from %s, responding\n", - inet_ntoa(ia)); - - return sendto(nsi->frgre.fd.fd, inner_greh, - gre_payload_len - inner_iph->ihl*4, 0, - (struct sockaddr *)&daddr, sizeof(daddr)); -} - -static struct msgb *read_nsfrgre_msg(struct osmo_fd *bfd, int *error, - struct sockaddr_in *saddr) -{ - struct msgb *msg = msgb_alloc(NS_ALLOC_SIZE, "Gb/NS/FR/GRE Rx"); - int ret = 0; - socklen_t saddr_len = sizeof(*saddr); - struct iphdr *iph; - struct gre_hdr *greh; - uint8_t *frh; - uint16_t dlci; - - if (!msg) { - *error = -ENOMEM; - return NULL; - } - - ret = recvfrom(bfd->fd, msg->data, NS_ALLOC_SIZE, 0, - (struct sockaddr *)saddr, &saddr_len); - if (ret < 0) { - LOGP(DNS, LOGL_ERROR, "recv error %s during NS-FR-GRE recv\n", - strerror(errno)); - *error = ret; - goto out_err; - } else if (ret == 0) { - *error = ret; - goto out_err; - } - - msgb_put(msg, ret); - - if (msg->len < sizeof(*iph) + sizeof(*greh) + 2) { - LOGP(DNS, LOGL_ERROR, "Short IP packet: %u bytes\n", msg->len); - *error = -EIO; - goto out_err; - } - - iph = (struct iphdr *) msg->data; - if (msg->len < (iph->ihl*4 + sizeof(*greh) + 2)) { - LOGP(DNS, LOGL_ERROR, "Short IP packet: %u bytes\n", msg->len); - *error = -EIO; - goto out_err; - } - - greh = (struct gre_hdr *) (msg->data + iph->ihl*4); - if (greh->flags) { - LOGP(DNS, LOGL_NOTICE, "Unknown GRE flags 0x%04x\n", - ntohs(greh->flags)); - } - - switch (ntohs(greh->ptype)) { - case GRE_PTYPE_IPv4: - /* IPv4 messages might be GRE keepalives */ - *error = handle_rx_gre_ipv4(bfd, msg, iph, greh); - goto out_err; - break; - case GRE_PTYPE_FR: - /* continue as usual */ - break; - default: - LOGP(DNS, LOGL_NOTICE, "Unknown GRE protocol 0x%04x != FR\n", - ntohs(greh->ptype)); - *error = -EIO; - goto out_err; - break; - } - - if (msg->len < sizeof(*greh) + 2) { - LOGP(DNS, LOGL_ERROR, "Short FR header: %u bytes\n", msg->len); - *error = -EIO; - goto out_err; - } - - frh = (uint8_t *)greh + sizeof(*greh); - if (frh[0] & 0x01) { - LOGP(DNS, LOGL_NOTICE, "Unsupported single-byte FR address\n"); - *error = -EIO; - goto out_err; - } - dlci = ((frh[0] & 0xfc) << 2); - if ((frh[1] & 0x0f) != 0x01) { - LOGP(DNS, LOGL_NOTICE, "Unknown second FR octet 0x%02x\n", - frh[1]); - *error = -EIO; - goto out_err; - } - dlci |= (frh[1] >> 4); - - msg->l2h = frh+2; - - /* Store DLCI in NETWORK BYTEORDER in sockaddr port member */ - saddr->sin_port = htons(dlci); - - return msg; - -out_err: - msgb_free(msg); - return NULL; -} - -int gprs_ns_rcvmsg(struct gprs_ns_inst *nsi, struct msgb *msg, - struct sockaddr_in *saddr, enum gprs_ns_ll ll); - -static int handle_nsfrgre_read(struct osmo_fd *bfd) -{ - int rc; - struct sockaddr_in saddr; - struct gprs_ns_inst *nsi = bfd->data; - struct msgb *msg; - uint16_t dlci; - - msg = read_nsfrgre_msg(bfd, &rc, &saddr); - if (!msg) - return rc; - - dlci = ntohs(saddr.sin_port); - if (dlci == 0 || dlci == 1023) { - LOGP(DNS, LOGL_INFO, "Received FR on LMI DLCI %u - ignoring\n", - dlci); - rc = 0; - goto out; - } - - rc = gprs_ns_rcvmsg(nsi, msg, &saddr, GPRS_NS_LL_FR_GRE); -out: - msgb_free(msg); - - return rc; -} - -static int handle_nsfrgre_write(struct osmo_fd *bfd) -{ - /* FIXME: actually send the data here instead of nsip_sendmsg() */ - return -EIO; -} - -int gprs_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg) -{ - int rc; - struct gprs_ns_inst *nsi = nsvc->nsi; - struct sockaddr_in daddr; - uint16_t dlci = ntohs(nsvc->frgre.bts_addr.sin_port); - uint8_t *frh; - struct gre_hdr *greh; - - /* Build socket address for the packet destionation */ - daddr.sin_family = AF_INET; - daddr.sin_addr = nsvc->frgre.bts_addr.sin_addr; - daddr.sin_port = IPPROTO_GRE; - - /* Prepend the FR header */ - frh = msgb_push(msg, 2); - frh[0] = (dlci >> 2) & 0xfc; - frh[1] = ((dlci & 0xf)<<4) | 0x01; - - /* Prepend the GRE header */ - greh = (struct gre_hdr *) msgb_push(msg, sizeof(*greh)); - greh->flags = 0; - greh->ptype = htons(GRE_PTYPE_FR); - - rc = sendto(nsi->frgre.fd.fd, msg->data, msg->len, 0, - (struct sockaddr *)&daddr, sizeof(daddr)); - - msgb_free(msg); - - return rc; -} - -static int nsfrgre_fd_cb(struct osmo_fd *bfd, unsigned int what) -{ - int rc = 0; - - if (what & BSC_FD_READ) - rc = handle_nsfrgre_read(bfd); - if (what & BSC_FD_WRITE) - rc = handle_nsfrgre_write(bfd); - - return rc; -} - -int gprs_ns_frgre_listen(struct gprs_ns_inst *nsi) -{ - struct in_addr in; - int rc; - - in.s_addr = htonl(nsi->frgre.local_ip); - - /* Make sure we close any existing socket before changing it */ - if (nsi->frgre.fd.fd) - close(nsi->frgre.fd.fd); - - if (!nsi->frgre.enabled) - return 0; - - nsi->frgre.fd.cb = nsfrgre_fd_cb; - nsi->frgre.fd.data = nsi; - rc = osmo_sock_init_ofd(&nsi->frgre.fd, AF_INET, SOCK_RAW, - IPPROTO_GRE, inet_ntoa(in), 0, - OSMO_SOCK_F_BIND); - if (rc < 0) { - LOGP(DNS, LOGL_ERROR, "Error creating GRE socket (%s)\n", - strerror(errno)); - return rc; - } - nsi->frgre.fd.data = nsi; - - return rc; -} diff --git a/openbsc/src/libgb/gprs_ns_vty.c b/openbsc/src/libgb/gprs_ns_vty.c deleted file mode 100644 index fac431cb4..000000000 --- a/openbsc/src/libgb/gprs_ns_vty.c +++ /dev/null @@ -1,581 +0,0 @@ -/* VTY interface for our GPRS Networks Service (NS) implementation */ - -/* (C) 2009-2010 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 . - * - */ - -#include -#include -#include -#include - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "common_vty.h" - -static struct gprs_ns_inst *vty_nsi = NULL; - -/* FIXME: this should go to some common file as it is copied - * in vty_interface.c of the BSC */ -static const struct value_string gprs_ns_timer_strs[] = { - { 0, "tns-block" }, - { 1, "tns-block-retries" }, - { 2, "tns-reset" }, - { 3, "tns-reset-retries" }, - { 4, "tns-test" }, - { 5, "tns-alive" }, - { 6, "tns-alive-retries" }, - { 0, NULL } -}; - -static void log_set_nsvc_filter(struct log_target *target, - struct gprs_nsvc *nsvc) -{ - if (nsvc) { - target->filter_map |= (1 << FLT_NSVC); - target->filter_data[FLT_NSVC] = nsvc; - } else if (target->filter_data[FLT_NSVC]) { - target->filter_map = ~(1 << FLT_NSVC); - target->filter_data[FLT_NSVC] = NULL; - } -} - -static struct cmd_node ns_node = { - L_NS_NODE, - "%s(ns)#", - 1, -}; - -static int config_write_ns(struct vty *vty) -{ - struct gprs_nsvc *nsvc; - unsigned int i; - struct in_addr ia; - - vty_out(vty, "ns%s", VTY_NEWLINE); - - llist_for_each_entry(nsvc, &vty_nsi->gprs_nsvcs, list) { - if (!nsvc->persistent) - continue; - vty_out(vty, " nse %u nsvci %u%s", - nsvc->nsei, nsvc->nsvci, VTY_NEWLINE); - vty_out(vty, " nse %u remote-role %s%s", - nsvc->nsei, nsvc->remote_end_is_sgsn ? "sgsn" : "bss", - VTY_NEWLINE); - switch (nsvc->ll) { - case GPRS_NS_LL_UDP: - vty_out(vty, " nse %u encapsulation udp%s", nsvc->nsei, - VTY_NEWLINE); - vty_out(vty, " nse %u remote-ip %s%s", - nsvc->nsei, - inet_ntoa(nsvc->ip.bts_addr.sin_addr), - VTY_NEWLINE); - vty_out(vty, " nse %u remote-port %u%s", - nsvc->nsei, ntohs(nsvc->ip.bts_addr.sin_port), - VTY_NEWLINE); - break; - case GPRS_NS_LL_FR_GRE: - vty_out(vty, " nse %u encapsulation framerelay-gre%s", - nsvc->nsei, VTY_NEWLINE); - vty_out(vty, " nse %u remote-ip %s%s", - nsvc->nsei, - inet_ntoa(nsvc->frgre.bts_addr.sin_addr), - VTY_NEWLINE); - vty_out(vty, " nse %u fr-dlci %u%s", - nsvc->nsei, ntohs(nsvc->frgre.bts_addr.sin_port), - VTY_NEWLINE); - default: - break; - } - } - - for (i = 0; i < ARRAY_SIZE(vty_nsi->timeout); i++) - vty_out(vty, " timer %s %u%s", - get_value_string(gprs_ns_timer_strs, i), - vty_nsi->timeout[i], VTY_NEWLINE); - - if (vty_nsi->nsip.local_ip) { - ia.s_addr = htonl(vty_nsi->nsip.local_ip); - vty_out(vty, " encapsulation udp local-ip %s%s", - inet_ntoa(ia), VTY_NEWLINE); - } - if (vty_nsi->nsip.local_port) - vty_out(vty, " encapsulation udp local-port %u%s", - vty_nsi->nsip.local_port, VTY_NEWLINE); - - vty_out(vty, " encapsulation framerelay-gre enabled %u%s", - vty_nsi->frgre.enabled ? 1 : 0, VTY_NEWLINE); - if (vty_nsi->frgre.local_ip) { - ia.s_addr = htonl(vty_nsi->frgre.local_ip); - vty_out(vty, " encapsulation framerelay-gre local-ip %s%s", - inet_ntoa(ia), VTY_NEWLINE); - } - - return CMD_SUCCESS; -} - -DEFUN(cfg_ns, cfg_ns_cmd, - "ns", - "Configure the GPRS Network Service") -{ - vty->node = L_NS_NODE; - return CMD_SUCCESS; -} - -static void dump_nse(struct vty *vty, struct gprs_nsvc *nsvc, int stats) -{ - vty_out(vty, "NSEI %5u, NS-VC %5u, Remote: %-4s, %5s %9s", - nsvc->nsei, nsvc->nsvci, - nsvc->remote_end_is_sgsn ? "SGSN" : "BSS", - nsvc->state & NSE_S_ALIVE ? "ALIVE" : "DEAD", - nsvc->state & NSE_S_BLOCKED ? "BLOCKED" : "UNBLOCKED"); - if (nsvc->ll == GPRS_NS_LL_UDP || nsvc->ll == GPRS_NS_LL_FR_GRE) - vty_out(vty, ", %s %15s:%u", - nsvc->ll == GPRS_NS_LL_UDP ? "UDP " : "FR-GRE", - inet_ntoa(nsvc->ip.bts_addr.sin_addr), - ntohs(nsvc->ip.bts_addr.sin_port)); - vty_out(vty, "%s", VTY_NEWLINE); - if (stats) - vty_out_rate_ctr_group(vty, " ", nsvc->ctrg); -} - -static void dump_ns(struct vty *vty, struct gprs_ns_inst *nsi, int stats) -{ - struct gprs_nsvc *nsvc; - struct in_addr ia; - - ia.s_addr = htonl(vty_nsi->nsip.local_ip); - vty_out(vty, "Encapsulation NS-UDP-IP Local IP: %s, UDP Port: %u%s", - inet_ntoa(ia), vty_nsi->nsip.local_port, VTY_NEWLINE); - - ia.s_addr = htonl(vty_nsi->frgre.local_ip); - vty_out(vty, "Encapsulation NS-FR-GRE-IP Local IP: %s%s", - inet_ntoa(ia), VTY_NEWLINE); - - llist_for_each_entry(nsvc, &nsi->gprs_nsvcs, list) { - if (nsvc == nsi->unknown_nsvc) - continue; - dump_nse(vty, nsvc, stats); - } -} - -DEFUN(show_ns, show_ns_cmd, "show ns", - SHOW_STR "Display information about the NS protocol") -{ - struct gprs_ns_inst *nsi = vty_nsi; - dump_ns(vty, nsi, 0); - return CMD_SUCCESS; -} - -DEFUN(show_ns_stats, show_ns_stats_cmd, "show ns stats", - SHOW_STR - "Display information about the NS protocol\n" - "Include statistics\n") -{ - struct gprs_ns_inst *nsi = vty_nsi; - dump_ns(vty, nsi, 1); - return CMD_SUCCESS; -} - -DEFUN(show_nse, show_nse_cmd, "show ns (nsei|nsvc) <0-65535> [stats]", - SHOW_STR "Display information about the NS protocol\n" - "Select one NSE by its NSE Identifier\n" - "Select one NSE by its NS-VC Identifier\n" - "The Identifier of selected type\n" - "Include Statistics\n") -{ - struct gprs_ns_inst *nsi = vty_nsi; - struct gprs_nsvc *nsvc; - uint16_t id = atoi(argv[1]); - int show_stats = 0; - - if (!strcmp(argv[0], "nsei")) - nsvc = gprs_nsvc_by_nsei(nsi, id); - else - nsvc = gprs_nsvc_by_nsvci(nsi, id); - - if (!nsvc) { - vty_out(vty, "No such NS Entity%s", VTY_NEWLINE); - return CMD_WARNING; - } - - if (argc >= 3) - show_stats = 1; - - dump_nse(vty, nsvc, show_stats); - return CMD_SUCCESS; -} - -#define NSE_CMD_STR "Persistent NS Entity\n" "NS Entity ID (NSEI)\n" - -DEFUN(cfg_nse_nsvc, cfg_nse_nsvci_cmd, - "nse <0-65535> nsvci <0-65534>", - NSE_CMD_STR - "NS Virtual Connection\n" - "NS Virtual Connection ID (NSVCI)\n" - ) -{ - uint16_t nsei = atoi(argv[0]); - uint16_t nsvci = atoi(argv[1]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - nsvc = gprs_nsvc_create(vty_nsi, nsvci); - nsvc->nsei = nsei; - } - nsvc->nsvci = nsvci; - /* All NSVCs that are explicitly configured by VTY are - * marked as persistent so we can write them to the config - * file at some later point */ - nsvc->persistent = 1; - - return CMD_SUCCESS; -} - -DEFUN(cfg_nse_remoteip, cfg_nse_remoteip_cmd, - "nse <0-65535> remote-ip A.B.C.D", - NSE_CMD_STR - "Remote IP Address\n" - "Remote IP Address\n") -{ - uint16_t nsei = atoi(argv[0]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - inet_aton(argv[1], &nsvc->ip.bts_addr.sin_addr); - - return CMD_SUCCESS; - -} - -DEFUN(cfg_nse_remoteport, cfg_nse_remoteport_cmd, - "nse <0-65535> remote-port <0-65535>", - NSE_CMD_STR - "Remote UDP Port\n" - "Remote UDP Port Number\n") -{ - uint16_t nsei = atoi(argv[0]); - uint16_t port = atoi(argv[1]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - if (nsvc->ll != GPRS_NS_LL_UDP) { - vty_out(vty, "Cannot set UDP Port on non-UDP NSE%s", - VTY_NEWLINE); - return CMD_WARNING; - } - - nsvc->ip.bts_addr.sin_port = htons(port); - - return CMD_SUCCESS; -} - -DEFUN(cfg_nse_fr_dlci, cfg_nse_fr_dlci_cmd, - "nse <0-65535> fr-dlci <16-1007>", - NSE_CMD_STR - "Frame Relay DLCI\n" - "Frame Relay DLCI Number\n") -{ - uint16_t nsei = atoi(argv[0]); - uint16_t dlci = atoi(argv[1]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - if (nsvc->ll != GPRS_NS_LL_FR_GRE) { - vty_out(vty, "Cannot set FR DLCI on non-FR NSE%s", - VTY_NEWLINE); - return CMD_WARNING; - } - - nsvc->frgre.bts_addr.sin_port = htons(dlci); - - return CMD_SUCCESS; -} - -DEFUN(cfg_nse_encaps, cfg_nse_encaps_cmd, - "nse <0-65535> encapsulation (udp|framerelay-gre)", - NSE_CMD_STR - "Encapsulation for NS\n" - "UDP/IP Encapsulation\n" "Frame-Relay/GRE/IP Encapsulation\n") -{ - uint16_t nsei = atoi(argv[0]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - if (!strcmp(argv[1], "udp")) - nsvc->ll = GPRS_NS_LL_UDP; - else - nsvc->ll = GPRS_NS_LL_FR_GRE; - - return CMD_SUCCESS; -} - - -DEFUN(cfg_nse_remoterole, cfg_nse_remoterole_cmd, - "nse <0-65535> remote-role (sgsn|bss)", - NSE_CMD_STR - "Remote NSE Role\n" - "Remote Peer is SGSN\n" - "Remote Peer is BSS\n") -{ - uint16_t nsei = atoi(argv[0]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - if (!strcmp(argv[1], "sgsn")) - nsvc->remote_end_is_sgsn = 1; - else - nsvc->remote_end_is_sgsn = 0; - - return CMD_SUCCESS; -} - -DEFUN(cfg_no_nse, cfg_no_nse_cmd, - "no nse <0-65535>", - "Delete Persistent NS Entity\n" - "Delete " NSE_CMD_STR) -{ - uint16_t nsei = atoi(argv[0]); - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsei); - if (!nsvc) { - vty_out(vty, "No such NSE (%u)%s", nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - if (!nsvc->persistent) { - vty_out(vty, "NSEI %u is not a persistent NSE%s", - nsei, VTY_NEWLINE); - return CMD_WARNING; - } - - nsvc->persistent = 0; - - return CMD_SUCCESS; -} - -DEFUN(cfg_ns_timer, cfg_ns_timer_cmd, - "timer " NS_TIMERS " <0-65535>", - "Network Service Timer\n" - NS_TIMERS_HELP "Timer Value\n") -{ - int idx = get_string_value(gprs_ns_timer_strs, argv[0]); - int val = atoi(argv[1]); - - if (idx < 0 || idx >= ARRAY_SIZE(vty_nsi->timeout)) - return CMD_WARNING; - - vty_nsi->timeout[idx] = val; - - return CMD_SUCCESS; -} - -#define ENCAPS_STR "NS encapsulation options\n" - -DEFUN(cfg_nsip_local_ip, cfg_nsip_local_ip_cmd, - "encapsulation udp local-ip A.B.C.D", - ENCAPS_STR "NS over UDP Encapsulation\n" - "Set the IP address on which we listen for NS/UDP\n" - "IP Address\n") -{ - struct in_addr ia; - - inet_aton(argv[0], &ia); - vty_nsi->nsip.local_ip = ntohl(ia.s_addr); - - return CMD_SUCCESS; -} - -DEFUN(cfg_nsip_local_port, cfg_nsip_local_port_cmd, - "encapsulation udp local-port <0-65535>", - ENCAPS_STR "NS over UDP Encapsulation\n" - "Set the UDP port on which we listen for NS/UDP\n" - "UDP port number\n") -{ - unsigned int port = atoi(argv[0]); - - vty_nsi->nsip.local_port = port; - - return CMD_SUCCESS; -} - -DEFUN(cfg_frgre_local_ip, cfg_frgre_local_ip_cmd, - "encapsulation framerelay-gre local-ip A.B.C.D", - ENCAPS_STR "NS over Frame Relay over GRE Encapsulation\n" - "Set the IP address on which we listen for NS/FR/GRE\n" - "IP Address\n") -{ - struct in_addr ia; - - if (!vty_nsi->frgre.enabled) { - vty_out(vty, "FR/GRE is not enabled%s", VTY_NEWLINE); - return CMD_WARNING; - } - inet_aton(argv[0], &ia); - vty_nsi->frgre.local_ip = ntohl(ia.s_addr); - - return CMD_SUCCESS; -} - -DEFUN(cfg_frgre_enable, cfg_frgre_enable_cmd, - "encapsulation framerelay-gre enabled (1|0)", - ENCAPS_STR "NS over Frame Relay over GRE Encapsulation\n" - "Enable or disable Frame Relay over GRE\n" - "Enable\n" "Disable\n") -{ - int enabled = atoi(argv[0]); - - vty_nsi->frgre.enabled = enabled; - - return CMD_SUCCESS; -} - -DEFUN(nsvc_nsei, nsvc_nsei_cmd, - "nsvc nsei <0-65535> (block|unblock|reset)", - "Perform an operation on a NSVC\n" - "NSEI to identify NS-VC Identifier (NS-VCI)\n" - "The NSEI\n" - "Initiate BLOCK procedure\n" - "Initiate UNBLOCK procedure\n" - "Initiate RESET procedure\n") -{ - uint16_t nsvci = atoi(argv[0]); - const char *operation = argv[1]; - struct gprs_nsvc *nsvc; - - nsvc = gprs_nsvc_by_nsei(vty_nsi, nsvci); - if (!nsvc) { - vty_out(vty, "No such NSVCI (%u)%s", nsvci, VTY_NEWLINE); - return CMD_WARNING; - } - - if (!strcmp(operation, "block")) - gprs_ns_tx_block(nsvc, NS_CAUSE_OM_INTERVENTION); - else if (!strcmp(operation, "unblock")) - gprs_ns_tx_unblock(nsvc); - else if (!strcmp(operation, "reset")) - gprs_nsvc_reset(nsvc, NS_CAUSE_OM_INTERVENTION); - else - return CMD_WARNING; - - return CMD_SUCCESS; -} - -DEFUN(logging_fltr_nsvc, - logging_fltr_nsvc_cmd, - "logging filter nsvc (nsei|nsvci) <0-65535>", - LOGGING_STR FILTER_STR - "Filter based on NS Virtual Connection\n" - "Identify NS-VC by NSEI\n" - "Identify NS-VC by NSVCI\n" - "Numeric identifier\n") -{ - struct log_target *tgt = osmo_log_vty2tgt(vty); - struct gprs_nsvc *nsvc; - uint16_t id = atoi(argv[1]); - - if (!tgt) - return CMD_WARNING; - - if (!strcmp(argv[0], "nsei")) - nsvc = gprs_nsvc_by_nsei(vty_nsi, id); - else - nsvc = gprs_nsvc_by_nsvci(vty_nsi, id); - - if (!nsvc) { - vty_out(vty, "No NS-VC by that identifier%s", VTY_NEWLINE); - return CMD_WARNING; - } - - log_set_nsvc_filter(tgt, nsvc); - return CMD_SUCCESS; -} - -int gprs_ns_vty_init(struct gprs_ns_inst *nsi) -{ - vty_nsi = nsi; - - install_element_ve(&show_ns_cmd); - install_element_ve(&show_ns_stats_cmd); - install_element_ve(&show_nse_cmd); - install_element_ve(&logging_fltr_nsvc_cmd); - - install_element(CFG_LOG_NODE, &logging_fltr_nsvc_cmd); - - install_element(CONFIG_NODE, &cfg_ns_cmd); - install_node(&ns_node, config_write_ns); - install_default(L_NS_NODE); - install_element(L_NS_NODE, &libgb_exit_cmd); - install_element(L_NS_NODE, &libgb_end_cmd); - install_element(L_NS_NODE, &cfg_nse_nsvci_cmd); - install_element(L_NS_NODE, &cfg_nse_remoteip_cmd); - install_element(L_NS_NODE, &cfg_nse_remoteport_cmd); - install_element(L_NS_NODE, &cfg_nse_fr_dlci_cmd); - install_element(L_NS_NODE, &cfg_nse_encaps_cmd); - install_element(L_NS_NODE, &cfg_nse_remoterole_cmd); - install_element(L_NS_NODE, &cfg_no_nse_cmd); - install_element(L_NS_NODE, &cfg_ns_timer_cmd); - install_element(L_NS_NODE, &cfg_nsip_local_ip_cmd); - install_element(L_NS_NODE, &cfg_nsip_local_port_cmd); - install_element(L_NS_NODE, &cfg_frgre_enable_cmd); - install_element(L_NS_NODE, &cfg_frgre_local_ip_cmd); - - install_element(ENABLE_NODE, &nsvc_nsei_cmd); - - return 0; -} diff --git a/openbsc/src/libgb/libosmo-gb.map b/openbsc/src/libgb/libosmo-gb.map deleted file mode 100644 index 83a830261..000000000 --- a/openbsc/src/libgb/libosmo-gb.map +++ /dev/null @@ -1,59 +0,0 @@ -LIBOSMOGB_1.0 { -global: -bssgp_cause_str; -bssgp_create_cell_id; -bssgp_msgb_alloc; -bssgp_msgb_tlli_put; -bssgp_parse_cell_id; -bssgp_tx_bvc_block; -bssgp_tx_bvc_reset; -bssgp_tx_bvc_unblock; -bssgp_tx_flush_ll_ack; -bssgp_tx_llc_discarded; -bssgp_tx_ra_capa_upd; -bssgp_tx_radio_status_imsi; -bssgp_tx_radio_status_tlli; -bssgp_tx_radio_status_tmsi; -bssgp_tx_resume; -bssgp_tx_resume_ack; -bssgp_tx_resume_nack; -bssgp_tx_simple_bvci; -bssgp_tx_status; -bssgp_tx_suspend; -bssgp_tx_suspend_ack; -bssgp_tx_suspend_nack; -bssgp_tx_ul_ud; -bssgp_rcvmsg -bssgp_rx_paging -bssgp_set_log_ss -bssgp_tx_dl_ud -bssgp_tx_paging -bssgp_vty_init - -gprs_ns_cause_str; -gprs_ns_destroy; -gprs_ns_frgre_listen; -gprs_ns_frgre_sendmsg; -gprs_ns_instantiate; -gprs_ns_nsip_listen; -gprs_ns_nsip_connect; -gprs_ns_rcvmsg; -gprs_ns_sendmsg; -gprs_ns_set_log_ss; -gprs_ns_tx_alive; -gprs_ns_tx_alive_ack; -gprs_ns_tx_block; -gprs_ns_tx_reset; -gprs_ns_tx_status; -gprs_ns_tx_unblock; -gprs_ns_vty_init; - -gprs_nsvc_create; -gprs_nsvc_delete; -gprs_nsvc_reset; -gprs_nsvc_by_nsvci; -gprs_nsvc_by_nsei; - - -local: *; -}; -- cgit v1.2.3