diff options
author | Pablo Neira Ayuso <pablo@gnumonks.org> | 2011-08-17 22:44:07 +0200 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2011-08-19 22:38:35 +0200 |
commit | ed5cacb240b846c106f0fc6a3ab8e8721f4c70a5 (patch) | |
tree | ba6bffbf0c95ecc0c50b5335bed77f3a2b29120f /openbsc/src/libabis/input/misdn.c | |
parent | 7abecfcfc9ef94c1367cd88ac858b79d20f75db0 (diff) |
src: port openBSC over libosmo-abisopenbsc/0.9.15
This is a big patch that ports openBSC over libosmo-abis.
Sorry, the changes that are included here are all dependent
of libosmo-abis, splitting them into smaller pieces would
leave the repository in some intermediate state, which is
not desired.
The main changes are:
- The directory libabis/ has been removed as it now lives in
libosmo-abis.
- new configuration file format for nanoBTS and HSL femto, we
need to define the virtual e1_line and attach it to the OML
link.
- all the existing BTS drivers (nanoBTS, hsl femto, Nokia site,
BS11 and rbs2000) now use the new libosmo-abis framework.
- use r232 input driver available in libosmo-abis for bs11_config.
- use ipa_msg_recv instead of old ipaccess_read_msg function.
- delete definition of gsm_e1_subslot and input_signal_data.
These structures now lives in libosmo-abis.
Most of this patch are deletions of libabis/ which has been
moved to libosmo-abis.
This patch also modifies openBSC to use all the new definitions
available in libosmocore and libosmo-abis. In order to do that,
we have replaced the following:
- DINP, DMI, DMIB and DMUX by their respective DL* correspondences.
- SS_GLOBAL by SS_L_GLOBAL
- SS_INPUT by SS_L_INPUT
- S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN
- SS_INPUT by SS_L_INPUT
- S_INP_* by S_L_INP_* sub-signals
- E1INP_NODE by L_E1INP_NODE vty node
This patch has been tested with:
- one nanoBTS
- the HSL femto with the examples available under libosmo-abis
- BS11 with both dahdi and misdn drivers.
Diffstat (limited to 'openbsc/src/libabis/input/misdn.c')
-rw-r--r-- | openbsc/src/libabis/input/misdn.c | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/openbsc/src/libabis/input/misdn.c b/openbsc/src/libabis/input/misdn.c deleted file mode 100644 index ab92d612f..000000000 --- a/openbsc/src/libabis/input/misdn.c +++ /dev/null @@ -1,541 +0,0 @@ -/* OpenBSC Abis input driver for mISDNuser */ - -/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org> - * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> - * - * 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 <http://www.gnu.org/licenses/>. - * - */ - -#include <stdio.h> -#include <unistd.h> -#include <stdlib.h> -#include <errno.h> -#include <string.h> -#include <time.h> -#include <sys/fcntl.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <arpa/inet.h> -#include <mISDNif.h> - -//#define AF_COMPATIBILITY_FUNC -//#include <compat_af_isdn.h> -#ifndef AF_ISDN -#define AF_ISDN 34 -#define PF_ISDN AF_ISDN -#endif - -#include <osmocom/core/select.h> -#include <osmocom/core/msgb.h> -#include <osmocom/core/talloc.h> -#include <openbsc/debug.h> -#include <openbsc/gsm_data.h> -#include <openbsc/abis_nm.h> -#include <openbsc/abis_rsl.h> -#include <openbsc/subchan_demux.h> -#include <openbsc/e1_input.h> -#include <openbsc/signal.h> - -#define TS1_ALLOC_SIZE 300 - -struct prim_name { - unsigned int prim; - const char *name; -}; - -const struct prim_name prim_names[] = { - { PH_CONTROL_IND, "PH_CONTROL_IND" }, - { PH_DATA_IND, "PH_DATA_IND" }, - { PH_DATA_CNF, "PH_DATA_CNF" }, - { PH_ACTIVATE_IND, "PH_ACTIVATE_IND" }, - { DL_ESTABLISH_IND, "DL_ESTABLISH_IND" }, - { DL_ESTABLISH_CNF, "DL_ESTABLISH_CNF" }, - { DL_RELEASE_IND, "DL_RELEASE_IND" }, - { DL_RELEASE_CNF, "DL_RELEASE_CNF" }, - { DL_DATA_IND, "DL_DATA_IND" }, - { DL_UNITDATA_IND, "DL_UNITDATA_IND" }, - { DL_INFORMATION_IND, "DL_INFORMATION_IND" }, - { MPH_ACTIVATE_IND, "MPH_ACTIVATE_IND" }, - { MPH_DEACTIVATE_IND, "MPH_DEACTIVATE_IND" }, -}; - -const char *get_prim_name(unsigned int prim) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(prim_names); i++) { - if (prim_names[i].prim == prim) - return prim_names[i].name; - } - - return "UNKNOWN"; -} - -static int handle_ts1_read(struct osmo_fd *bfd) -{ - struct e1inp_line *line = bfd->data; - unsigned int ts_nr = bfd->priv_nr; - struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; - struct e1inp_sign_link *link; - struct msgb *msg = msgb_alloc(TS1_ALLOC_SIZE, "mISDN TS1"); - struct sockaddr_mISDN l2addr; - struct mISDNhead *hh; - socklen_t alen; - int ret; - - if (!msg) - return -ENOMEM; - - hh = (struct mISDNhead *) msg->data; - - alen = sizeof(l2addr); - ret = recvfrom(bfd->fd, msg->data, 300, 0, - (struct sockaddr *) &l2addr, &alen); - if (ret < 0) { - fprintf(stderr, "recvfrom error %s\n", strerror(errno)); - return ret; - } - - if (alen != sizeof(l2addr)) { - fprintf(stderr, "%s error len\n", __func__); - return -EINVAL; - } - - msgb_put(msg, ret); - - DEBUGP(DMI, "alen =%d, dev(%d) channel(%d) sapi(%d) tei(%d)\n", - alen, l2addr.dev, l2addr.channel, l2addr.sapi, l2addr.tei); - - DEBUGP(DMI, "<= len = %d, prim(0x%x) id(0x%x): %s\n", - ret, hh->prim, hh->id, get_prim_name(hh->prim)); - - switch (hh->prim) { - case DL_INFORMATION_IND: - /* mISDN tells us which channel number is allocated for this - * tuple of (SAPI, TEI). */ - DEBUGP(DMI, "DL_INFORMATION_IND: use channel(%d) sapi(%d) tei(%d) for now\n", - l2addr.channel, l2addr.sapi, l2addr.tei); - link = e1inp_lookup_sign_link(e1i_ts, l2addr.tei, l2addr.sapi); - if (!link) { - DEBUGPC(DMI, "mISDN message for unknown sign_link\n"); - msgb_free(msg); - return -EINVAL; - } - /* save the channel number in the driver private struct */ - link->driver.misdn.channel = l2addr.channel; - break; - case DL_ESTABLISH_IND: - DEBUGP(DMI, "DL_ESTABLISH_IND: channel(%d) sapi(%d) tei(%d)\n", - l2addr.channel, l2addr.sapi, l2addr.tei); - /* For some strange reason, sometimes the DL_INFORMATION_IND tells - * us the wrong channel, and we only get the real channel number - * during the DL_ESTABLISH_IND */ - link = e1inp_lookup_sign_link(e1i_ts, l2addr.tei, l2addr.sapi); - if (!link) { - DEBUGPC(DMI, "mISDN message for unknown sign_link\n"); - msgb_free(msg); - return -EINVAL; - } - /* save the channel number in the driver private struct */ - link->driver.misdn.channel = l2addr.channel; - ret = e1inp_event(e1i_ts, S_INP_TEI_UP, l2addr.tei, l2addr.sapi); - break; - case DL_RELEASE_IND: - DEBUGP(DMI, "DL_RELEASE_IND: channel(%d) sapi(%d) tei(%d)\n", - l2addr.channel, l2addr.sapi, l2addr.tei); - ret = e1inp_event(e1i_ts, S_INP_TEI_DN, l2addr.tei, l2addr.sapi); - break; - case DL_DATA_IND: - case DL_UNITDATA_IND: - msg->l2h = msg->data + MISDN_HEADER_LEN; - DEBUGP(DMI, "RX: %s\n", osmo_hexdump(msgb_l2(msg), ret - MISDN_HEADER_LEN)); - ret = e1inp_rx_ts(e1i_ts, msg, l2addr.tei, l2addr.sapi); - break; - case PH_ACTIVATE_IND: - DEBUGP(DMI, "PH_ACTIVATE_IND: channel(%d) sapi(%d) tei(%d)\n", - l2addr.channel, l2addr.sapi, l2addr.tei); - break; - case PH_DEACTIVATE_IND: - DEBUGP(DMI, "PH_DEACTIVATE_IND: channel(%d) sapi(%d) tei(%d)\n", - l2addr.channel, l2addr.sapi, l2addr.tei); - break; - default: - break; - } - return ret; -} - -static int ts_want_write(struct e1inp_ts *e1i_ts) -{ - /* We never include the mISDN B-Channel FD into the - * writeset, since it doesn't support poll() based - * write flow control */ - if (e1i_ts->type == E1INP_TS_TYPE_TRAU) - return 0; - - e1i_ts->driver.misdn.fd.when |= BSC_FD_WRITE; - - return 0; -} - -static void timeout_ts1_write(void *data) -{ - struct e1inp_ts *e1i_ts = (struct e1inp_ts *)data; - - /* trigger write of ts1, due to tx delay timer */ - ts_want_write(e1i_ts); -} - -static int handle_ts1_write(struct osmo_fd *bfd) -{ - struct e1inp_line *line = bfd->data; - unsigned int ts_nr = bfd->priv_nr; - struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; - struct e1inp_sign_link *sign_link; - struct sockaddr_mISDN sa; - struct msgb *msg; - struct mISDNhead *hh; - uint8_t *l2_data; - int ret; - - bfd->when &= ~BSC_FD_WRITE; - - /* get the next msg for this timeslot */ - msg = e1inp_tx_ts(e1i_ts, &sign_link); - if (!msg) { - /* no message after tx delay timer */ - return 0; - } - - l2_data = msg->data; - - /* prepend the mISDNhead */ - hh = (struct mISDNhead *) msgb_push(msg, sizeof(*hh)); - hh->prim = DL_DATA_REQ; - - DEBUGP(DMI, "TX channel(%d) TEI(%d) SAPI(%d): %s\n", - sign_link->driver.misdn.channel, sign_link->tei, - sign_link->sapi, osmo_hexdump(l2_data, msg->len - MISDN_HEADER_LEN)); - - /* construct the sockaddr */ - sa.family = AF_ISDN; - sa.sapi = sign_link->sapi; - sa.dev = sign_link->tei; - sa.channel = sign_link->driver.misdn.channel; - - ret = sendto(bfd->fd, msg->data, msg->len, 0, - (struct sockaddr *)&sa, sizeof(sa)); - if (ret < 0) - fprintf(stderr, "%s sendto failed %d\n", __func__, ret); - msgb_free(msg); - - /* set tx delay timer for next event */ - e1i_ts->sign.tx_timer.cb = timeout_ts1_write; - e1i_ts->sign.tx_timer.data = e1i_ts; - osmo_timer_schedule(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay); - - return ret; -} - -#define BCHAN_TX_GRAN 160 -/* write to a B channel TS */ -static int handle_tsX_write(struct osmo_fd *bfd) -{ - struct e1inp_line *line = bfd->data; - unsigned int ts_nr = bfd->priv_nr; - struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; - struct mISDNhead *hh; - uint8_t tx_buf[BCHAN_TX_GRAN + sizeof(*hh)]; - struct subch_mux *mx = &e1i_ts->trau.mux; - int ret; - - hh = (struct mISDNhead *) tx_buf; - hh->prim = PH_DATA_REQ; - - subchan_mux_out(mx, tx_buf+sizeof(*hh), BCHAN_TX_GRAN); - - DEBUGP(DMIB, "BCHAN TX: %s\n", - osmo_hexdump(tx_buf+sizeof(*hh), BCHAN_TX_GRAN)); - - ret = send(bfd->fd, tx_buf, sizeof(*hh) + BCHAN_TX_GRAN, 0); - if (ret < sizeof(*hh) + BCHAN_TX_GRAN) - DEBUGP(DMIB, "send returns %d instead of %zu\n", ret, - sizeof(*hh) + BCHAN_TX_GRAN); - - return ret; -} - -#define TSX_ALLOC_SIZE 4096 -/* FIXME: read from a B channel TS */ -static int handle_tsX_read(struct osmo_fd *bfd) -{ - struct e1inp_line *line = bfd->data; - unsigned int ts_nr = bfd->priv_nr; - struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; - struct msgb *msg = msgb_alloc(TSX_ALLOC_SIZE, "mISDN TSx"); - struct mISDNhead *hh; - int ret; - - if (!msg) - return -ENOMEM; - - hh = (struct mISDNhead *) msg->data; - - ret = recv(bfd->fd, msg->data, TSX_ALLOC_SIZE, 0); - if (ret < 0) { - fprintf(stderr, "recvfrom error %s\n", strerror(errno)); - return ret; - } - - msgb_put(msg, ret); - - if (hh->prim != PH_CONTROL_IND) - DEBUGP(DMIB, "<= BCHAN len = %d, prim(0x%x) id(0x%x): %s\n", - ret, hh->prim, hh->id, get_prim_name(hh->prim)); - - switch (hh->prim) { - case PH_DATA_IND: - msg->l2h = msg->data + MISDN_HEADER_LEN; - DEBUGP(DMIB, "BCHAN RX: %s\n", - osmo_hexdump(msgb_l2(msg), ret - MISDN_HEADER_LEN)); - ret = e1inp_rx_ts(e1i_ts, msg, 0, 0); - break; - case PH_ACTIVATE_IND: - case PH_DATA_CNF: - /* physical layer indicates that data has been sent, - * we thus can send some more data */ - ret = handle_tsX_write(bfd); - default: - break; - } - /* FIXME: why do we free signalling msgs in the caller, and trau not? */ - msgb_free(msg); - - return ret; -} - -/* callback from select.c in case one of the fd's can be read/written */ -static int misdn_fd_cb(struct osmo_fd *bfd, unsigned int what) -{ - struct e1inp_line *line = bfd->data; - unsigned int ts_nr = bfd->priv_nr; - unsigned int idx = ts_nr-1; - struct e1inp_ts *e1i_ts = &line->ts[idx]; - int rc = 0; - - switch (e1i_ts->type) { - case E1INP_TS_TYPE_SIGN: - if (what & BSC_FD_READ) - rc = handle_ts1_read(bfd); - if (what & BSC_FD_WRITE) - rc = handle_ts1_write(bfd); - break; - case E1INP_TS_TYPE_TRAU: - if (what & BSC_FD_READ) - rc = handle_tsX_read(bfd); - /* We never include the mISDN B-Channel FD into the - * writeset, since it doesn't support poll() based - * write flow control */ - break; - default: - fprintf(stderr, "unknown E1 TS type %u\n", e1i_ts->type); - break; - } - - return rc; -} - -static int activate_bchan(struct e1inp_line *line, int ts, int act) -{ - struct mISDNhead hh; - int ret; - unsigned int idx = ts-1; - struct e1inp_ts *e1i_ts = &line->ts[idx]; - struct osmo_fd *bfd = &e1i_ts->driver.misdn.fd; - - fprintf(stdout, "activate bchan\n"); - if (act) - hh.prim = PH_ACTIVATE_REQ; - else - hh.prim = PH_DEACTIVATE_REQ; - - hh.id = MISDN_ID_ANY; - ret = sendto(bfd->fd, &hh, sizeof(hh), 0, NULL, 0); - if (ret < 0) { - fprintf(stdout, "could not send ACTIVATE_RQ %s\n", - strerror(errno)); - } - - return ret; -} - -static int mi_e1_line_update(struct e1inp_line *line); - -struct e1inp_driver misdn_driver = { - .name = "misdn", - .want_write = ts_want_write, - .default_delay = 50000, - .line_update = &mi_e1_line_update, -}; - -static int mi_e1_setup(struct e1inp_line *line, int release_l2) -{ - int ts, ret; - - /* TS0 is CRC4, don't need any fd for it */ - for (ts = 1; ts < NUM_E1_TS; ts++) { - unsigned int idx = ts-1; - struct e1inp_ts *e1i_ts = &line->ts[idx]; - struct osmo_fd *bfd = &e1i_ts->driver.misdn.fd; - struct sockaddr_mISDN addr; - - bfd->data = line; - bfd->priv_nr = ts; - bfd->cb = misdn_fd_cb; - - switch (e1i_ts->type) { - case E1INP_TS_TYPE_NONE: - continue; - break; - case E1INP_TS_TYPE_SIGN: - bfd->fd = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_LAPD_NT); - bfd->when = BSC_FD_READ; - break; - case E1INP_TS_TYPE_TRAU: - bfd->fd = socket(PF_ISDN, SOCK_DGRAM, ISDN_P_B_RAW); - /* We never include the mISDN B-Channel FD into the - * writeset, since it doesn't support poll() based - * write flow control */ - bfd->when = BSC_FD_READ; - break; - } - - if (bfd->fd < 0) { - fprintf(stderr, "%s could not open socket %s\n", - __func__, strerror(errno)); - return bfd->fd; - } - - memset(&addr, 0, sizeof(addr)); - addr.family = AF_ISDN; - addr.dev = line->num; - switch (e1i_ts->type) { - case E1INP_TS_TYPE_SIGN: - addr.channel = 0; - /* SAPI not supported yet in kernel */ - //addr.sapi = e1inp_ts->sign.sapi; - addr.sapi = 0; - addr.tei = GROUP_TEI; - break; - case E1INP_TS_TYPE_TRAU: - addr.channel = ts; - break; - default: - DEBUGP(DMI, "unsupported E1 TS type: %u\n", - e1i_ts->type); - break; - } - - ret = bind(bfd->fd, (struct sockaddr *) &addr, sizeof(addr)); - if (ret < 0) { - fprintf(stderr, "could not bind l2 socket %s\n", - strerror(errno)); - return -EIO; - } - - if (e1i_ts->type == E1INP_TS_TYPE_SIGN) { - ret = ioctl(bfd->fd, IMCLEAR_L2, &release_l2); - if (ret < 0) { - fprintf(stderr, "could not send IOCTL IMCLEAN_L2 %s\n", strerror(errno)); - return -EIO; - } - } - - /* FIXME: only activate B-Channels once we start to - * use them to conserve CPU power */ - if (e1i_ts->type == E1INP_TS_TYPE_TRAU) - activate_bchan(line, ts, 1); - - ret = osmo_fd_register(bfd); - if (ret < 0) { - fprintf(stderr, "could not register FD: %s\n", - strerror(ret)); - return ret; - } - } - - return 0; -} - -static int mi_e1_line_update(struct e1inp_line *line) -{ - struct mISDN_devinfo devinfo; - int sk, ret, cnt; - - if (line->driver != &misdn_driver) - return -EINVAL; - - /* open the ISDN card device */ - sk = socket(PF_ISDN, SOCK_RAW, ISDN_P_BASE); - if (sk < 0) { - fprintf(stderr, "%s could not open socket %s\n", - __func__, strerror(errno)); - return sk; - } - - ret = ioctl(sk, IMGETCOUNT, &cnt); - if (ret) { - fprintf(stderr, "%s error getting interf count: %s\n", - __func__, strerror(errno)); - close(sk); - return -ENODEV; - } - //DEBUGP(DMI,"%d device%s found\n", cnt, (cnt==1)?"":"s"); - printf("%d device%s found\n", cnt, (cnt==1)?"":"s"); -#if 1 - devinfo.id = line->num; - ret = ioctl(sk, IMGETDEVINFO, &devinfo); - if (ret < 0) { - fprintf(stdout, "error getting info for device %d: %s\n", - line->num, strerror(errno)); - return -ENODEV; - } - fprintf(stdout, " id: %d\n", devinfo.id); - fprintf(stdout, " Dprotocols: %08x\n", devinfo.Dprotocols); - fprintf(stdout, " Bprotocols: %08x\n", devinfo.Bprotocols); - fprintf(stdout, " protocol: %d\n", devinfo.protocol); - fprintf(stdout, " nrbchan: %d\n", devinfo.nrbchan); - fprintf(stdout, " name: %s\n", devinfo.name); -#endif - - if (!(devinfo.Dprotocols & (1 << ISDN_P_NT_E1))) { - fprintf(stderr, "error: card is not of type E1 (NT-mode)\n"); - return -EINVAL; - } - - ret = mi_e1_setup(line, 1); - if (ret) - return ret; - - return 0; -} - -void e1inp_misdn_init(void) -{ - /* register the driver with the core */ - e1inp_driver_register(&misdn_driver); -} |