diff options
Diffstat (limited to 'openbsc/src')
| -rw-r--r-- | openbsc/src/gprs/gprs_bssgp.c | 702 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_bssgp_util.c | 3 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_bssgp_vty.c | 178 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_ns.c | 165 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_ns_frgre.c | 305 | ||||
| -rw-r--r-- | openbsc/src/gprs/gprs_ns_vty.c | 315 |
6 files changed, 1449 insertions, 219 deletions
diff --git a/openbsc/src/gprs/gprs_bssgp.c b/openbsc/src/gprs/gprs_bssgp.c index 9fdfd329..0ec873ca 100644 --- a/openbsc/src/gprs/gprs_bssgp.c +++ b/openbsc/src/gprs/gprs_bssgp.c @@ -18,6 +18,9 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * + * TODO: + * o properly count incoming BVC-RESET packets in counter group + * o set log context as early as possible for outgoing packets */ #include <errno.h> @@ -28,6 +31,7 @@ #include <osmocore/msgb.h> #include <osmocore/tlv.h> #include <osmocore/talloc.h> +#include <osmocore/rate_ctr.h> #include <openbsc/debug.h> #include <openbsc/gsm_data.h> @@ -35,38 +39,46 @@ #include <openbsc/gprs_bssgp.h> #include <openbsc/gprs_llc.h> #include <openbsc/gprs_ns.h> +#include <openbsc/gprs_sgsn.h> +#include <openbsc/gprs_gmm.h> void *bssgp_tall_ctx = NULL; #define BVC_F_BLOCKED 0x0001 -/* The per-BTS context that we keep on the SGSN side of the BSSGP link */ -struct bssgp_bts_ctx { - struct llist_head list; - - /* parsed RA ID and Cell ID of the remote BTS */ - struct gprs_ra_id ra_id; - uint16_t cell_id; - - /* 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; +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, +}; - uint32_t bvc_state; +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" }, +}; - /* 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; +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, }; -static LLIST_HEAD(bts_ctxts); + +LLIST_HEAD(bssgp_bvc_ctxts); /* Find a BTS Context based on parsed RA ID and Cell ID */ -struct bssgp_bts_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid) +struct bssgp_bvc_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t cid) { - struct bssgp_bts_ctx *bctx; + struct bssgp_bvc_ctx *bctx; - llist_for_each_entry(bctx, &bts_ctxts, list) { + 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; @@ -75,27 +87,30 @@ struct bssgp_bts_ctx *btsctx_by_raid_cid(const struct gprs_ra_id *raid, uint16_t } /* Find a BTS context based on BVCI+NSEI tuple */ -struct bssgp_bts_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei) +struct bssgp_bvc_ctx *btsctx_by_bvci_nsei(uint16_t bvci, uint16_t nsei) { - struct bssgp_bts_ctx *bctx; + struct bssgp_bvc_ctx *bctx; - llist_for_each_entry(bctx, &bts_ctxts, list) { + llist_for_each_entry(bctx, &bssgp_bvc_ctxts, list) { if (bctx->nsei == nsei && bctx->bvci == bvci) return bctx; } return NULL; } -struct bssgp_bts_ctx *btsctx_alloc(uint16_t bvci, uint16_t nsei) +struct bssgp_bvc_ctx *btsctx_alloc(uint16_t bvci, uint16_t nsei) { - struct bssgp_bts_ctx *ctx; + struct bssgp_bvc_ctx *ctx; - ctx = talloc_zero(bssgp_tall_ctx, struct bssgp_bts_ctx); + ctx = talloc_zero(bssgp_tall_ctx, struct bssgp_bvc_ctx); if (!ctx) return NULL; ctx->bvci = bvci; ctx->nsei = nsei; - llist_add(&ctx->list, &bts_ctxts); + /* 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; } @@ -116,6 +131,96 @@ static int bssgp_tx_fc_bvc_ack(uint16_t nsei, uint8_t tag, uint16_t ns_bvci) 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, + 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; + + 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); + 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 */ @@ -128,13 +233,13 @@ uint16_t bssgp_parse_cell_id(struct gprs_ra_id *raid, const uint8_t *buf) static int bssgp_rx_bvc_reset(struct msgb *msg, struct tlv_parsed *tp, uint16_t ns_bvci) { - struct bssgp_bts_ctx *bctx; + 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)); - DEBUGPC(DBSSGP, "BVCI=%u, cause=%s\n", 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 */ @@ -142,11 +247,14 @@ static int bssgp_rx_bvc_reset(struct msgb *msg, struct tlv_parsed *tp, 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 RESET BVCI=%u " + LOGP(DBSSGP, LOGL_ERROR, "BSSGP BVCI=%u RESET " "missing mandatory IE\n", bvci); return -EINVAL; } @@ -164,90 +272,200 @@ static int bssgp_rx_bvc_reset(struct msgb *msg, struct tlv_parsed *tp, return 0; } +static int bssgp_rx_bvc_block(struct msgb *msg, struct tlv_parsed *tp) +{ + 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 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]); + + /* FIXME: Send NM_BVC_BLOCK.ind to NM */ + + /* 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) +{ + 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; + + /* FIXME: Send NM_BVC_UNBLOCK.ind to NM */ + + /* 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) +static int bssgp_rx_ul_ud(struct msgb *msg, struct tlv_parsed *tp, + struct bssgp_bvc_ctx *ctx) { struct bssgp_ud_hdr *budh = (struct bssgp_ud_hdr *) msgb_bssgph(msg); - int data_len = msgb_bssgp_len(msg) - sizeof(*budh); - struct tlv_parsed tp; - int rc; - - DEBUGP(DBSSGP, "BSSGP UL-UD\n"); /* extract TLLI and parse TLV IEs */ msgb_tlli(msg) = ntohl(budh->tlli); - rc = bssgp_tlv_parse(&tp, budh->data, data_len); - /* 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)) - return -EIO; + DEBUGP(DBSSGP, "BSSGP TLLI=0x%08x UPLINK-UNITDATA\n", msgb_tlli(msg)); - /* FIXME: lookup bssgp_bts_ctx based on BVCI + NSEI */ + /* 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) = TLVP_VAL(&tp, BSSGP_IE_LLC_PDU); - msgb_bcid(msg) = TLVP_VAL(&tp, BSSGP_IE_CELL_ID); + msgb_llch(msg) = (uint8_t *) TLVP_VAL(tp, BSSGP_IE_LLC_PDU); + msgb_bcid(msg) = (uint8_t *) TLVP_VAL(tp, BSSGP_IE_CELL_ID); - return gprs_llc_rcvmsg(msg, &tp); + return gprs_llc_rcvmsg(msg, tp); } -static int bssgp_rx_suspend(struct msgb *msg) +static int bssgp_rx_suspend(struct msgb *msg, struct tlv_parsed *tp, + struct bssgp_bvc_ctx *ctx) { struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_bssgph(msg); - int data_len = msgb_bssgp_len(msg) - sizeof(*bgph); - struct tlv_parsed tp; + struct gprs_ra_id raid; + uint32_t tlli; int rc; - DEBUGP(DBSSGP, "BSSGP SUSPEND\n"); + 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)); - rc = bssgp_tlv_parse(&tp, bgph->data, data_len); + 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 */ + rc = gprs_gmm_rx_suspend(&raid, tlli); if (rc < 0) - return rc; + return bssgp_tx_suspend_nack(msgb_nsei(msg), tlli, NULL); - if (!TLVP_PRESENT(&tp, BSSGP_IE_TLLI) || - !TLVP_PRESENT(&tp, BSSGP_IE_ROUTEING_AREA)) - return -EIO; + bssgp_tx_suspend_ack(msgb_nsei(msg), tlli, &raid, 0); - /* FIXME: pass the SUSPEND request to GMM */ - /* SEND SUSPEND_ACK or SUSPEND_NACK */ + return 0; } -static int bssgp_rx_resume(struct msgb *msg) +static int bssgp_rx_resume(struct msgb *msg, struct tlv_parsed *tp, + struct bssgp_bvc_ctx *ctx) { struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_bssgph(msg); - int data_len = msgb_bssgp_len(msg) - sizeof(*bgph); - struct tlv_parsed tp; + struct gprs_ra_id raid; + uint32_t tlli; + uint8_t suspend_ref; int rc; - DEBUGP(DBSSGP, "BSSGP RESUME\n"); + 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); - rc = bssgp_tlv_parse(&tp, bgph->data, data_len); + DEBUGP(DBSSGP, "BSSGP BVCI=%u TLLI=0x%08x RESUME\n", ctx->bvci, tlli); + + gsm48_parse_ra(&raid, TLVP_VAL(tp, BSSGP_IE_ROUTEING_AREA)); + + /* Inform GMM about the RESUME request */ + rc = gprs_gmm_rx_resume(&raid, tlli, suspend_ref); if (rc < 0) - return rc; + return bssgp_tx_resume_nack(msgb_nsei(msg), tlli, &raid, + NULL); + + bssgp_tx_resume_ack(msgb_nsei(msg), tlli, &raid); + return 0; +} + - if (!TLVP_PRESENT(&tp, BSSGP_IE_TLLI) || - !TLVP_PRESENT(&tp, BSSGP_IE_ROUTEING_AREA) || - !TLVP_PRESENT(&tp, BSSGP_IE_SUSPEND_REF_NR)) - return -EIO; +static int bssgp_rx_llc_disc(struct msgb *msg, struct tlv_parsed *tp, + struct bssgp_bvc_ctx *ctx) +{ + uint32_t tlli; + + 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); + } - /* FIXME: pass the RESUME request to GMM */ - /* SEND RESUME_ACK or RESUME_NACK */ + tlli = ntohl(*(uint32_t *)TLVP_VAL(tp, BSSGP_IE_TLLI)); + + DEBUGP(DBSSGP, "BSSGP BVCI=%u TLLI=%u LLC DISCARDED\n", + ctx->bvci, tlli); + + rate_ctr_inc(&ctx->ctrg->ctr[BSSGP_CTR_DISCARDED]); + + /* FIXME: send NM_LLC_DISCARDED to NM */ + return 0; } -static int bssgp_rx_fc_bvc(struct msgb *msg, struct tlv_parsed *tp) +static int bssgp_rx_fc_bvc(struct msgb *msg, struct tlv_parsed *tp, + struct bssgp_bvc_ctx *bctx) { - DEBUGP(DBSSGP, "BSSGP FC BVC\n"); + 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)) + !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 */ @@ -256,133 +474,168 @@ static int bssgp_rx_fc_bvc(struct msgb *msg, struct tlv_parsed *tp) msgb_bvci(msg)); } -/* We expect msgb_bssgph() to point to the BSSGP header */ -int gprs_bssgp_rcvmsg(struct msgb *msg) +/* Receive a BSSGP PDU from a BSS on a PTP BVCI */ +static int gprs_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); - struct tlv_parsed tp; uint8_t pdu_type = bgph->pdu_type; - int data_len = msgb_bssgp_len(msg) - sizeof(*bgph); - uint16_t bvci; /* PTP BVCI */ - uint16_t ns_bvci = msgb_bvci(msg); 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) - rc = bssgp_tlv_parse(&tp, bgph->data, data_len); + /* 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); + rc = bssgp_rx_ul_ud(msg, tp, bctx); break; case BSSGP_PDUT_RA_CAPABILITY: /* BSS requests RA capability or IMSI */ - DEBUGP(DBSSGP, "BSSGP RA CAPABILITY UPDATE\n"); + 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 RADIO STATUS\n"); + DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx RADIO STATUS\n", bctx->bvci); /* BSS informs us of some exception */ - /* FIXME: notify GMM */ + /* 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 gprs_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); + rc = bssgp_rx_suspend(msg, tp, bctx); break; case BSSGP_PDUT_RESUME: /* MS wants to resume */ - rc = bssgp_rx_resume(msg); + rc = bssgp_rx_resume(msg, tp, bctx); break; - case BSSGP_PDUT_FLUSH_LL: - /* BSS informs MS has moved to one cell to other cell */ - DEBUGP(DBSSGP, "BSSGP FLUSH LL\n"); - /* FIXME: notify GMM */ - /* Send FLUSH_LL_ACK */ + case BSSGP_PDUT_FLUSH_LL_ACK: + /* BSS informs us it has performed LL FLUSH */ + DEBUGP(DBSSGP, "BSSGP BVCI=%u Rx 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 */ - DEBUGP(DBSSGP, "BSSGP LLC DISCARDED\n"); - /* FIXME: notify GMM */ - break; - case BSSGP_PDUT_FLOW_CONTROL_BVC: - /* BSS informs us of available bandwidth in Gb interface */ - rc = bssgp_rx_fc_bvc(msg, &tp); - break; - case BSSGP_PDUT_FLOW_CONTROL_MS: - /* BSS informs us of available bandwidth to one MS */ - DEBUGP(DBSSGP, "BSSGP FC MS\n"); - /* FIXME: actually implement flow control */ - /* FIXME: Send FLOW_CONTROL_MS_ACK */ + rc = bssgp_rx_llc_disc(msg, tp, bctx); break; case BSSGP_PDUT_BVC_BLOCK: /* BSS tells us that BVC shall be blocked */ - DEBUGP(DBSSGP, "BSSGP BVC BLOCK "); - if (!TLVP_PRESENT(&tp, BSSGP_IE_BVCI) || - !TLVP_PRESENT(&tp, BSSGP_IE_CAUSE)) + 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; - bvci = ntohs(*(uint16_t *)TLVP_VAL(&tp, BSSGP_IE_BVCI)); - DEBUGPC(DBSSGP, "BVCI=%u, cause=%s\n", bvci, - bssgp_cause_str(*TLVP_VAL(&tp, BSSGP_IE_CAUSE))); - /* We always acknowledge the BLOCKing */ - rc = bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_BLOCK_ACK, - msgb_nsei(msg), bvci, ns_bvci); + } + rc = bssgp_rx_bvc_block(msg, tp); break; case BSSGP_PDUT_BVC_UNBLOCK: /* BSS tells us that BVC shall be unblocked */ - DEBUGP(DBSSGP, "BSSGP BVC UNBLOCK "); - if (!TLVP_PRESENT(&tp, BSSGP_IE_BVCI)) + if (!TLVP_PRESENT(tp, BSSGP_IE_BVCI)) { + LOGP(DBSSGP, LOGL_ERROR, "BSSGP Rx BVC-UNBLOCK " + "missing mandatory IE\n"); goto err_mand_ie; - bvci = ntohs(*(uint16_t *)TLVP_VAL(&tp, BSSGP_IE_BVCI)); - DEBUGPC(DBSSGP, "BVCI=%u\n", bvci); - /* We always acknowledge the unBLOCKing */ - rc = bssgp_tx_simple_bvci(BSSGP_PDUT_BVC_UNBLOCK_ACK, - msgb_nsei(msg), bvci, ns_bvci); + } + rc = bssgp_rx_bvc_unblock(msg, tp); break; case BSSGP_PDUT_BVC_RESET: /* BSS tells us that BVC init is required */ - DEBUGP(DBSSGP, "BSSGP BVC RESET "); - if (!TLVP_PRESENT(&tp, BSSGP_IE_BVCI) || - !TLVP_PRESENT(&tp, BSSGP_IE_CAUSE)) + 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); + } + rc = bssgp_rx_bvc_reset(msg, tp, ns_bvci); break; case BSSGP_PDUT_STATUS: /* Some exception has occurred */ - /* FIXME: notify GMM */ - 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 PDU type 0x%02x not [yet] implemented\n", - pdu_type); + 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_DL_UNITDATA: case BSSGP_PDUT_PAGING_PS: case BSSGP_PDUT_PAGING_CS: - case BSSGP_PDUT_RA_CAPA_UPDATE_ACK: 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_ACK: - case BSSGP_PDUT_FLOW_CONTROL_BVC_ACK: - case BSSGP_PDUT_FLOW_CONTROL_MS_ACK: + 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 PDU type 0x%02x only exists in DL\n", - pdu_type); + 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 PDU type 0x%02x unknown\n", pdu_type); + 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; } @@ -391,30 +644,85 @@ 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 gprs_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(BSC_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 = gprs_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 = gprs_bssgp_rx_ptp(msg, &tp, bctx); + + return rc; +} + /* Entry function from upper level (LLC), asking us to transmit a BSSGP PDU * to a remote MS (identified by TLLI) at a BTS identified by its BVCI and NSEI */ -int gprs_bssgp_tx_dl_ud(struct msgb *msg) +int gprs_bssgp_tx_dl_ud(struct msgb *msg, struct sgsn_mm_ctx *mmctx) { - struct bssgp_bts_ctx *bctx; + struct bssgp_bvc_ctx *bctx; struct bssgp_ud_hdr *budh; uint8_t llc_pdu_tlv_hdr_len = 2; uint8_t *llc_pdu_tlv, *qos_profile; uint16_t pdu_lifetime = 1000; /* centi-seconds */ - uint8_t qos_profile_default[3] = { 0x00, 0x00, 0x21 }; + uint8_t qos_profile_default[3] = { 0x00, 0x00, 0x20 }; uint16_t msg_len = msg->len; uint16_t bvci = msgb_bvci(msg); uint16_t nsei = msgb_nsei(msg); + uint16_t drx_params; /* Identifiers from UP: TLLI, BVCI, NSEI (all in msgb->cb) */ - if (bvci < 2) { + 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) + 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; @@ -426,11 +734,41 @@ int gprs_bssgp_tx_dl_ud(struct msgb *msg) llc_pdu_tlv[1] = msg_len >> 8; llc_pdu_tlv[2] = msg_len & 0xff; } else { - llc_pdu_tlv[1] = msg_len & 0x3f; + llc_pdu_tlv[1] = msg_len & 0x7f; llc_pdu_tlv[1] |= 0x80; } - /* FIXME: optional elements */ + /* FIXME: optional elements: Alignment, UTRAN CCO, LSA, PFI */ + + if (mmctx) { + /* Old TLLI to help BSS map from old->new */ +#if 0 + if (mmctx->tlli_old) + msgb_tvlv_push(msg, BSSGP_IE_TLLI, 4, htonl(*tlli_old)); +#endif + + /* IMSI */ + if (strlen(mmctx->imsi)) { + uint8_t mi[10]; + int imsi_len = gsm48_generate_mid_from_imsi(mi, mmctx->imsi); + if (imsi_len > 2) + msgb_tvlv_push(msg, BSSGP_IE_IMSI, + imsi_len-2, mi+2); + } + + /* DRX parameters */ + drx_params = htons(mmctx->drx_parms); + msgb_tvlv_push(msg, BSSGP_IE_DRX_PARAMS, 2, + (uint8_t *) &drx_params); + + /* FIXME: Priority */ + + /* MS Radio Access Capability */ + if (mmctx->ms_radio_access_capa.len) + msgb_tvlv_push(msg, BSSGP_IE_MS_RADIO_ACCESS_CAP, + mmctx->ms_radio_access_capa.len, + mmctx->ms_radio_access_capa.buf); + } /* prepend the pdu lifetime */ pdu_lifetime = htons(pdu_lifetime); @@ -442,7 +780,73 @@ int gprs_bssgp_tx_dl_ud(struct msgb *msg) 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 gprs_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); +} diff --git a/openbsc/src/gprs/gprs_bssgp_util.c b/openbsc/src/gprs/gprs_bssgp_util.c index d9b5175f..e760252b 100644 --- a/openbsc/src/gprs/gprs_bssgp_util.c +++ b/openbsc/src/gprs/gprs_bssgp_util.c @@ -101,7 +101,8 @@ int bssgp_tx_status(uint8_t cause, uint16_t *bvci, struct msgb *orig_msg) struct bssgp_normal_hdr *bgph = (struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph)); - DEBUGPC(DBSSGP, "BSSGP: TX STATUS, cause=%s\n", bssgp_cause_str(cause)); + 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; diff --git a/openbsc/src/gprs/gprs_bssgp_vty.c b/openbsc/src/gprs/gprs_bssgp_vty.c new file mode 100644 index 00000000..dc1f65c3 --- /dev/null +++ b/openbsc/src/gprs/gprs_bssgp_vty.c @@ -0,0 +1,178 @@ +/* VTY interface for our GPRS BSS Gateway Protocol (BSSGP) implementation */ + +/* (C) 2010 by Harald Welte <laforge@gnumonks.org> + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <stdint.h> + +#include <arpa/inet.h> + +#include <openbsc/gsm_data.h> +#include <osmocore/msgb.h> +#include <osmocore/tlv.h> +#include <osmocore/talloc.h> +#include <osmocore/select.h> +#include <osmocore/rate_ctr.h> +#include <openbsc/debug.h> +#include <openbsc/signal.h> +#include <openbsc/gprs_ns.h> +#include <openbsc/gprs_bssgp.h> +#include <openbsc/vty.h> + +#include <osmocom/vty/vty.h> +#include <osmocom/vty/command.h> +#include <osmocom/vty/logging.h> +#include <osmocom/vty/telnet_interface.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 struct cmd_node bssgp_node = { + BSSGP_NODE, + "%s(bssgp)#", + 1, +}; + +static int config_write_bssgp(struct vty *vty) +{ + vty_out(vty, "bssgp%s", VTY_NEWLINE); |