diff options
Diffstat (limited to 'src/sysmo_l1_if.cpp')
| -rw-r--r-- | src/sysmo_l1_if.cpp | 716 |
1 files changed, 0 insertions, 716 deletions
diff --git a/src/sysmo_l1_if.cpp b/src/sysmo_l1_if.cpp deleted file mode 100644 index ceb28d28..00000000 --- a/src/sysmo_l1_if.cpp +++ /dev/null @@ -1,716 +0,0 @@ -/* sysmo_l1_if.cpp - * - * Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu> - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <assert.h> -#include <sys/socket.h> -#include <sys/un.h> -extern "C" { -#include <osmocom/core/talloc.h> -#include <osmocom/core/select.h> -#include <osmocom/core/msgb.h> -} - -#include <gprs_rlcmac.h> -#include <pcu_l1_if.h> -#include <gprs_debug.h> -#include <gprs_bssgp_pcu.h> -#include "../../osmo-bts/include/osmo-bts/pcuif_proto.h" - -static int pcu_sock_send(struct msgb *msg); -static void pcu_sock_timeout(void *_priv); - -// Variable for storage current FN. -int frame_number; - -int get_current_fn() -{ - return frame_number; -} - -void set_current_fn(int fn) -{ - frame_number = fn; -} - -/* - * PCU messages - */ - -struct msgb *pcu_msgb_alloc(uint8_t msg_type, uint8_t bts_nr) -{ - struct msgb *msg; - struct gsm_pcu_if *pcu_prim; - - msg = msgb_alloc(sizeof(struct gsm_pcu_if), "pcu_sock_tx"); - if (!msg) - return NULL; - msgb_put(msg, sizeof(struct gsm_pcu_if)); - pcu_prim = (struct gsm_pcu_if *) msg->data; - pcu_prim->msg_type = msg_type; - pcu_prim->bts_nr = bts_nr; - - return msg; -} - -static int pcu_tx_act_req(uint8_t trx, uint8_t ts, uint8_t activate) -{ - struct msgb *msg; - struct gsm_pcu_if *pcu_prim; - struct gsm_pcu_if_act_req *act_req; - - LOGP(DL1IF, LOGL_INFO, "Sending %s request: trx=%d ts=%d\n", - (activate) ? "activate" : "deactivate", trx, ts); - - msg = pcu_msgb_alloc(PCU_IF_MSG_ACT_REQ, 0); - if (!msg) - return -ENOMEM; - pcu_prim = (struct gsm_pcu_if *) msg->data; - act_req = &pcu_prim->u.act_req; - act_req->activate = activate; - act_req->trx_nr = trx; - act_req->ts_nr = ts; - - return pcu_sock_send(msg); -} - -static int pcu_tx_data_req(uint8_t trx, uint8_t ts, uint8_t sapi, - uint16_t arfcn, uint32_t fn, uint8_t block_nr, uint8_t *data, - uint8_t len) -{ - struct msgb *msg; - struct gsm_pcu_if *pcu_prim; - struct gsm_pcu_if_data *data_req; - - LOGP(DL1IF, LOGL_DEBUG, "Sending data request: trx=%d ts=%d sapi=%d " - "arfcn=%d fn=%d block=%d data=%s\n", trx, ts, sapi, arfcn, fn, - block_nr, osmo_hexdump(data, len)); - - msg = pcu_msgb_alloc(PCU_IF_MSG_DATA_REQ, 0); - if (!msg) - return -ENOMEM; - pcu_prim = (struct gsm_pcu_if *) msg->data; - data_req = &pcu_prim->u.data_req; - - data_req->sapi = sapi; - data_req->fn = fn; - data_req->arfcn = arfcn; - data_req->trx_nr = trx; - data_req->ts_nr = ts; - data_req->block_nr = block_nr; - memcpy(data_req->data, data, len); - data_req->len = len; - - return pcu_sock_send(msg); -} - -void pcu_l1if_tx_pdtch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn, - uint32_t fn, uint8_t block_nr) -{ - pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PDTCH, arfcn, fn, block_nr, - msg->data, msg->len); - msgb_free(msg); -} - -void pcu_l1if_tx_ptcch(msgb *msg, uint8_t trx, uint8_t ts, uint16_t arfcn, - uint32_t fn, uint8_t block_nr) -{ - pcu_tx_data_req(trx, ts, PCU_IF_SAPI_PTCCH, arfcn, fn, block_nr, - msg->data, msg->len); - msgb_free(msg); -} - -void pcu_l1if_tx_agch(bitvec * block, int plen) -{ - uint8_t data[23]; /* prefix PLEN */ - - /* FIXME: why does OpenBTS has no PLEN and no fill in message? */ - bitvec_pack(block, data + 1); - data[0] = (plen << 2) | 0x01; - pcu_tx_data_req(0, 0, PCU_IF_SAPI_AGCH, 0, 0, 0, data, 23); -} - -void pcu_l1if_tx_pch(bitvec * block, int plen, char *imsi) -{ - uint8_t data[23+3]; /* prefix PLEN */ - - /* paging group */ - if (!imsi || strlen(imsi) < 3) - return; - imsi += strlen(imsi) - 3; - data[0] = imsi[0]; - data[1] = imsi[1]; - data[2] = imsi[2]; - - bitvec_pack(block, data + 3+1); - data[3] = (plen << 2) | 0x01; - pcu_tx_data_req(0, 0, PCU_IF_SAPI_PCH, 0, 0, 0, data, 23+3); -} - -static void pcu_l1if_tx_bcch(uint8_t *data, int len) -{ - pcu_tx_data_req(0, 0, PCU_IF_SAPI_BCCH, 0, 0, 0, data, len); -} - -static int pcu_rx_data_ind(struct gsm_pcu_if_data *data_ind) -{ - int rc = 0; - - LOGP(DL1IF, LOGL_DEBUG, "Data indication received: sapi=%d arfcn=%d " - "block=%d data=%s\n", data_ind->sapi, - data_ind->arfcn, data_ind->block_nr, - osmo_hexdump(data_ind->data, data_ind->len)); - - switch (data_ind->sapi) { - case PCU_IF_SAPI_PDTCH: - rc = gprs_rlcmac_rcv_block(data_ind->data, data_ind->len, - data_ind->fn); - break; - default: - LOGP(DL1IF, LOGL_ERROR, "Received PCU data indication with " - "unsupported sapi %d\n", data_ind->sapi); - rc = -EINVAL; - } - - return rc; -} - -static int pcu_rx_rts_req(struct gsm_pcu_if_rts_req *rts_req) -{ - int rc = 0; - - LOGP(DL1IF, LOGL_DEBUG, "RTS request received: trx=%d ts=%d sapi=%d " - "arfcn=%d fn=%d block=%d\n", rts_req->trx_nr, rts_req->ts_nr, - rts_req->sapi, rts_req->arfcn, rts_req->fn, rts_req->block_nr); - - switch (rts_req->sapi) { - case PCU_IF_SAPI_PDTCH: - gprs_rlcmac_rcv_rts_block(rts_req->trx_nr, rts_req->ts_nr, - rts_req->arfcn, rts_req->fn, rts_req->block_nr); - break; - case PCU_IF_SAPI_PTCCH: - /* FIXME */ - { - struct msgb *msg = msgb_alloc(23, "l1_prim"); - memset(msgb_put(msg, 23), 0x2b, 23); - pcu_l1if_tx_ptcch(msg, rts_req->trx_nr, rts_req->ts_nr, - rts_req->arfcn, rts_req->fn, rts_req->block_nr); - } - break; - default: - LOGP(DL1IF, LOGL_ERROR, "Received PCU RTS request with " - "unsupported sapi %d\n", rts_req->sapi); - rc = -EINVAL; - } - - return rc; -} - -static int pcu_rx_rach_ind(struct gsm_pcu_if_rach_ind *rach_ind) -{ - int rc = 0; - - LOGP(DL1IF, LOGL_INFO, "RACH request received: sapi=%d " - "qta=%d, ra=%d, fn=%d\n", rach_ind->sapi, rach_ind->qta, - rach_ind->ra, rach_ind->fn); - - switch (rach_ind->sapi) { - case PCU_IF_SAPI_RACH: - rc = gprs_rlcmac_rcv_rach(rach_ind->ra, rach_ind->fn, - rach_ind->qta); - break; - default: - LOGP(DL1IF, LOGL_ERROR, "Received PCU rach request with " - "unsupported sapi %d\n", rach_ind->sapi); - rc = -EINVAL; - } - - return rc; -} - -static int pcu_rx_info_ind(struct gsm_pcu_if_info_ind *info_ind) -{ - struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts; - int rc = 0; - int trx, ts, tfi; - struct gprs_rlcmac_tbf *tbf; - int i; - - LOGP(DL1IF, LOGL_DEBUG, "Info indication received:\n"); - - if (!(info_ind->flags & PCU_IF_FLAG_ACTIVE)) { - LOGP(DL1IF, LOGL_NOTICE, "BTS not available\n"); -bssgp_failed: - /* free all TBF */ - for (trx = 0; trx < 8; trx++) { - bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; - for (ts = 0; ts < 8; ts++) { - for (tfi = 0; tfi < 32; tfi++) { - tbf = bts->trx[trx].pdch[ts].tbf[tfi]; - if (tbf) - tbf_free(tbf); - } - } - } - gprs_bssgp_destroy(); - return 0; - } - LOGP(DL1IF, LOGL_INFO, "BTS available\n"); - LOGP(DL1IF, LOGL_DEBUG, " mcc=%d\n", info_ind->mcc); - LOGP(DL1IF, LOGL_DEBUG, " mnc=%d\n", info_ind->mnc); - LOGP(DL1IF, LOGL_DEBUG, " lac=%d\n", info_ind->lac); - LOGP(DL1IF, LOGL_DEBUG, " rac=%d\n", info_ind->rac); - LOGP(DL1IF, LOGL_DEBUG, " cell_id=%d\n", info_ind->cell_id); - LOGP(DL1IF, LOGL_DEBUG, " nsei=%d\n", info_ind->nsei); - LOGP(DL1IF, LOGL_DEBUG, " nse_timer=%d %d %d %d %d %d %d\n", - info_ind->nse_timer[0], info_ind->nse_timer[1], - info_ind->nse_timer[2], info_ind->nse_timer[3], - info_ind->nse_timer[4], info_ind->nse_timer[5], - info_ind->nse_timer[6]); - LOGP(DL1IF, LOGL_DEBUG, " cell_timer=%d %d %d %d %d %d %d %d %d %d " - "%d\n", - info_ind->cell_timer[0], info_ind->cell_timer[1], - info_ind->cell_timer[2], info_ind->cell_timer[3], - info_ind->cell_timer[4], info_ind->cell_timer[5], - info_ind->cell_timer[6], info_ind->cell_timer[7], - info_ind->cell_timer[8], info_ind->cell_timer[9], - info_ind->cell_timer[10]); - LOGP(DL1IF, LOGL_DEBUG, " repeat_time=%d\n", info_ind->repeat_time); - LOGP(DL1IF, LOGL_DEBUG, " repeat_count=%d\n", info_ind->repeat_count); - LOGP(DL1IF, LOGL_DEBUG, " bvci=%d\n", info_ind->bvci); - LOGP(DL1IF, LOGL_DEBUG, " t3142=%d\n", info_ind->t3142); - LOGP(DL1IF, LOGL_DEBUG, " t3169=%d\n", info_ind->t3169); - LOGP(DL1IF, LOGL_DEBUG, " t3191=%d\n", info_ind->t3191); - LOGP(DL1IF, LOGL_DEBUG, " t3193=%d (ms)\n", info_ind->t3193_10ms * 10); - LOGP(DL1IF, LOGL_DEBUG, " t3195=%d\n", info_ind->t3195); - LOGP(DL1IF, LOGL_DEBUG, " n3101=%d\n", info_ind->n3101); - LOGP(DL1IF, LOGL_DEBUG, " n3103=%d\n", info_ind->n3103); - LOGP(DL1IF, LOGL_DEBUG, " n3105=%d\n", info_ind->n3105); - LOGP(DL1IF, LOGL_DEBUG, " cv_countdown=%d\n", info_ind->cv_countdown); - LOGP(DL1IF, LOGL_DEBUG, " dl_tbf_ext=%d\n", info_ind->dl_tbf_ext); - LOGP(DL1IF, LOGL_DEBUG, " ul_tbf_ext=%d\n", info_ind->ul_tbf_ext); - for (i = 0; i < 4; i++) { - if ((info_ind->flags & (PCU_IF_FLAG_CS1 << i))) - LOGP(DL1IF, LOGL_DEBUG, " Use CS%d\n", i+1); - } - for (i = 0; i < 9; i++) { - if ((info_ind->flags & (PCU_IF_FLAG_MCS1 << i))) - LOGP(DL1IF, LOGL_DEBUG, " Use MCS%d\n", i+1); - } - LOGP(DL1IF, LOGL_DEBUG, " initial_cs=%d\n", info_ind->initial_cs); - LOGP(DL1IF, LOGL_DEBUG, " initial_mcs=%d\n", info_ind->initial_mcs); - LOGP(DL1IF, LOGL_DEBUG, " nsvci=%d\n", info_ind->nsvci[0]); - LOGP(DL1IF, LOGL_DEBUG, " local_port=%d\n", info_ind->local_port[0]); - LOGP(DL1IF, LOGL_DEBUG, " remote_port=%d\n", info_ind->remote_port[0]); - LOGP(DL1IF, LOGL_DEBUG, " remote_ip=%d\n", info_ind->remote_ip[0]); - - rc = gprs_bssgp_create(info_ind->remote_ip[0], info_ind->remote_port[0], - info_ind->nsei, info_ind->nsvci[0], info_ind->bvci, - info_ind->mcc, info_ind->mnc, info_ind->lac, info_ind->rac, - info_ind->cell_id); - if (rc < 0) { - LOGP(DL1IF, LOGL_NOTICE, "SGSN not available\n"); - goto bssgp_failed; - } - - bts->cs1 = !!(info_ind->flags & PCU_IF_FLAG_CS1); - bts->cs2 = !!(info_ind->flags & PCU_IF_FLAG_CS2); - bts->cs3 = !!(info_ind->flags & PCU_IF_FLAG_CS3); - bts->cs4 = !!(info_ind->flags & PCU_IF_FLAG_CS4); - if (!bts->cs1 && !bts->cs2 && !bts->cs3 && !bts->cs4) - bts->cs1 = 1; - if (info_ind->t3142) { /* if timer values are set */ - bts->t3142 = info_ind->t3142; - bts->t3169 = info_ind->t3169; - bts->t3191 = info_ind->t3191; - bts->t3193_msec = info_ind->t3193_10ms * 10; - bts->t3195 = info_ind->t3195; - bts->n3101 = info_ind->n3101; - bts->n3103 = info_ind->n3103; - bts->n3105 = info_ind->n3105; - } - if (info_ind->initial_cs < 1 || info_ind->initial_cs > 4) - bts->initial_cs = 1; - else - bts->initial_cs = info_ind->initial_cs; - - for (trx = 0; trx < 8; trx++) { - bts->trx[trx].arfcn = info_ind->trx[trx].arfcn; - for (ts = 0; ts < 8; ts++) { - if ((info_ind->trx[trx].pdch_mask & (1 << ts))) { - /* FIXME: activate dynamically at RLCMAC */ - if (!bts->trx[trx].pdch[ts].enable) - pcu_tx_act_req(trx, ts, 1); - bts->trx[trx].pdch[ts].enable = 1; - bts->trx[trx].pdch[ts].tsc = - info_ind->trx[trx].tsc[ts]; - LOGP(DL1IF, LOGL_INFO, "PDCH: trx=%d ts=%d\n", - trx, ts); - } else { - if (bts->trx[trx].pdch[ts].enable) - pcu_tx_act_req(trx, ts, 0); - bts->trx[trx].pdch[ts].enable = 0; - /* kick all tbf FIXME: multislot */ - for (tfi = 0; tfi < 32; tfi++) { - tbf = bts->trx[trx].pdch[ts].tbf[tfi]; - if (tbf) - tbf_free(tbf); - } - } - } - } - - return rc; -} - -static int pcu_rx_time_ind(struct gsm_pcu_if_time_ind *time_ind) -{ - struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts; - int trx, ts, tfi; - struct gprs_rlcmac_tbf *tbf; - uint32_t elapsed; - uint8_t fn13 = time_ind->fn % 13; - - /* omit frame numbers not starting at a MAC block */ - if (fn13 != 0 && fn13 != 4 && fn13 != 8) - return 0; - - LOGP(DL1IF, LOGL_DEBUG, "Time indication received: %d\n", - time_ind->fn % 52); - - set_current_fn(time_ind->fn); - - /* check for poll timeout */ - for (trx = 0; trx < 8; trx++) { - for (ts = 0; ts < 8; ts++) { - for (tfi = 0; tfi < 32; tfi++) { - tbf = bts->trx[trx].pdch[ts].tbf[tfi]; - if (!tbf) - continue; - if (tbf->poll_state != GPRS_RLCMAC_POLL_SCHED) - continue; - elapsed = (frame_number - tbf->poll_fn) - % 2715648; - if (elapsed >= 20 && elapsed < 200) - gprs_rlcmac_poll_timeout(tbf); - } - } - } - - return 0; -} - -static int pcu_rx(uint8_t msg_type, struct gsm_pcu_if *pcu_prim) -{ - int rc = 0; - - switch (msg_type) { - case PCU_IF_MSG_DATA_IND: - rc = pcu_rx_data_ind(&pcu_prim->u.data_ind); - break; - case PCU_IF_MSG_RTS_REQ: - rc = pcu_rx_rts_req(&pcu_prim->u.rts_req); - break; - case PCU_IF_MSG_RACH_IND: - rc = pcu_rx_rach_ind(&pcu_prim->u.rach_ind); - break; - case PCU_IF_MSG_INFO_IND: - rc = pcu_rx_info_ind(&pcu_prim->u.info_ind); - break; - case PCU_IF_MSG_TIME_IND: - rc = pcu_rx_time_ind(&pcu_prim->u.time_ind); - break; - default: - LOGP(DL1IF, LOGL_ERROR, "Received unknwon PCU msg type %d\n", - msg_type); - rc = -EINVAL; - } - - return rc; -} - -/* - * SYSMO-PCU socket functions - */ - -struct pcu_sock_state { - struct osmo_fd conn_bfd; /* fd for connection to lcr */ - struct osmo_timer_list timer; /* socket connect retry timer */ - struct llist_head upqueue; /* queue for sending messages */ -} *pcu_sock_state = NULL; - -static int pcu_sock_send(struct msgb *msg) -{ - struct pcu_sock_state *state = pcu_sock_state; - struct osmo_fd *conn_bfd; - - if (!state) { - LOGP(DL1IF, LOGL_NOTICE, "PCU socket not created, dropping " - "message\n"); - return -EINVAL; - } - conn_bfd = &state->conn_bfd; - if (conn_bfd->fd <= 0) { - LOGP(DL1IF, LOGL_NOTICE, "PCU socket not connected, dropping " - "message\n"); - return -EIO; - } - msgb_enqueue(&state->upqueue, msg); - conn_bfd->when |= BSC_FD_WRITE; - - return 0; -} - -static void pcu_sock_close(struct pcu_sock_state *state) -{ - struct osmo_fd *bfd = &state->conn_bfd; - struct gprs_rlcmac_bts *bts = gprs_rlcmac_bts; - struct gprs_rlcmac_tbf *tbf; - uint8_t trx, ts, tfi; - - LOGP(DL1IF, LOGL_NOTICE, "PCU socket has LOST connection\n"); - - close(bfd->fd); - bfd->fd = -1; - osmo_fd_unregister(bfd); - - /* flush the queue */ - while (!llist_empty(&state->upqueue)) { - struct msgb *msg = msgb_dequeue(&state->upqueue); - msgb_free(msg); - } - - /* disable all slots, kick all TBFs */ - for (trx = 0; trx < 8; trx++) { - for (ts = 0; ts < 8; ts++) { - bts->trx[trx].pdch[ts].enable = 0; - for (tfi = 0; tfi < 32; tfi++) { - tbf = bts->trx[trx].pdch[ts].tbf[tfi]; - if (tbf) - tbf_free(tbf); - } - } - } - - gprs_bssgp_destroy(); - - state->timer.cb = pcu_sock_timeout; - osmo_timer_schedule(&state->timer, 5, 0); -} - -static int pcu_sock_read(struct osmo_fd *bfd) -{ - struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data; - struct gsm_pcu_if *pcu_prim; - struct msgb *msg; - int rc; - - msg = msgb_alloc(sizeof(*pcu_prim), "pcu_sock_rx"); - if (!msg) - return -ENOMEM; - - pcu_prim = (struct gsm_pcu_if *) msg->tail; - - rc = recv(bfd->fd, msg->tail, msgb_tailroom(msg), 0); - if (rc == 0) - goto close; - - if (rc < 0) { - if (errno == EAGAIN) - return 0; - goto close; - } - - rc = pcu_rx(pcu_prim->msg_type, pcu_prim); - - /* as we always synchronously process the message in pcu_rx() and - * its callbacks, we can free the message here. */ - msgb_free(msg); - - return rc; - -close: - msgb_free(msg); - pcu_sock_close(state); - return -1; -} - -static int pcu_sock_write(struct osmo_fd *bfd) -{ - struct pcu_sock_state *state = (struct pcu_sock_state *)bfd->data; - int rc; - - while (!llist_empty(&state->upqueue)) { - struct msgb *msg, *msg2; - struct gsm_pcu_if *pcu_prim; - - /* peek at the beginning of the queue */ - msg = llist_entry(state->upqueue.next, struct msgb, list); - pcu_prim = (struct gsm_pcu_if *)msg->data; - - bfd->when &= ~BSC_FD_WRITE; - - /* bug hunter 8-): maybe someone forgot msgb_put(...) ? */ - if (!msgb_length(msg)) { - LOGP(DL1IF, LOGL_ERROR, "message type (%d) with ZERO " - "bytes!\n", pcu_prim->msg_type); - goto dontsend; - } - - /* try to send it over the socket */ - rc = write(bfd->fd, msgb_data(msg), msgb_length(msg)); - if (rc == 0) - goto close; - if (rc < 0) { - if (errno == EAGAIN) { - bfd->when |= BSC_FD_WRITE; - break; - } - goto close; - } - -dontsend: - /* _after_ we send it, we can deueue */ - msg2 = msgb_dequeue(&state->upqueue); - assert(msg == msg2); - msgb_free(msg); - } - return 0; - -close: - pcu_sock_close(state); - - return -1; -} - -static int pcu_sock_cb(struct osmo_fd *bfd, unsigned int flags) -{ - int rc = 0; - - if (flags & BSC_FD_READ) - rc = pcu_sock_read(bfd); - if (rc < 0) - return rc; - - if (flags & BSC_FD_WRITE) - rc = pcu_sock_write(bfd); - - return rc; -} - -int pcu_l1if_open(void) -{ - struct pcu_sock_state *state; - struct osmo_fd *bfd; - struct sockaddr_un local; - unsigned int namelen; - int rc; - - state = pcu_sock_state; - if (!state) { - state = talloc_zero(NULL, struct pcu_sock_state); - if (!state) - return -ENOMEM; - INIT_LLIST_HEAD(&state->upqueue); - } - - bfd = &state->conn_bfd; - - bfd->fd = socket(AF_UNIX, SOCK_SEQPACKET, 0); - if (bfd->fd < 0) { - LOGP(DL1IF, LOGL_ERROR, "Failed to create PCU-SYSMO socket.\n"); - talloc_free(state); - return -1; - } - - local.sun_family = AF_UNIX; - strncpy(local.sun_path, "/tmp/pcu_bts", sizeof(local.sun_path)); - local.sun_path[sizeof(local.sun_path) - 1] = '\0'; - - /* we use the same magic that X11 uses in Xtranssock.c for - * calculating the proper length of the sockaddr */ -#if defined(BSD44SOCKETS) || defined(__UNIXWARE__) - local.sun_len = strlen(local.sun_path); -#endif -#if defined(BSD44SOCKETS) || defined(SUN_LEN) - namelen = SUN_LEN(&local); -#else - namelen = strlen(local.sun_path) + - offsetof(struct sockaddr_un, sun_path); -#endif - rc = connect(bfd->fd, (struct sockaddr *) &local, namelen); - if (rc != 0) { - LOGP(DL1IF, LOGL_ERROR, "Failed to Connect the PCU-SYSMO " - "socket, delaying... '%s'\n", local.sun_path); - close(bfd->fd); - bfd->fd = -1; - state->timer.cb = pcu_sock_timeout; - osmo_timer_schedule(&state->timer, 5, 0); - return 0; - } - - bfd->when = BSC_FD_READ; - bfd->cb = pcu_sock_cb; - bfd->data = state; - - rc = osmo_fd_register(bfd); - if (rc < 0) { - LOGP(DL1IF, LOGL_ERROR, "Could not register PCU fd: %d\n", rc); - close(bfd->fd); - talloc_free(state); - return rc; - } - - LOGP(DL1IF, LOGL_NOTICE, "PCU-SYSMO socket has been connected\n"); - - pcu_sock_state = state; - - return 0; -} - -void pcu_l1if_close(void) -{ - struct pcu_sock_state *state = pcu_sock_state; - struct osmo_fd *bfd; - - if (!state) - return; - - if (osmo_timer_pending(&state->timer)) - osmo_timer_del(&state->timer); - - bfd = &state->conn_bfd; - if (bfd->fd > 0) - pcu_sock_close(state); - talloc_free(state); - pcu_sock_state = NULL; -} - -static void pcu_sock_timeout(void *_priv) -{ - pcu_l1if_open(); -} - - - - |