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-rw-r--r--openbsc/src/libabis/input/ipaccess.c842
1 files changed, 0 insertions, 842 deletions
diff --git a/openbsc/src/libabis/input/ipaccess.c b/openbsc/src/libabis/input/ipaccess.c
deleted file mode 100644
index 2d6764e2..00000000
--- a/openbsc/src/libabis/input/ipaccess.c
+++ /dev/null
@@ -1,842 +0,0 @@
-/* OpenBSC Abis input driver for ip.access */
-
-/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
- * (C) 2010 by Holger Hans Peter Freyther
- * (C) 2010 by On-Waves
- *
- * 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 <osmocom/core/select.h>
-#include <osmocom/gsm/tlv.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/ipaccess.h>
-#include <openbsc/socket.h>
-#include <openbsc/signal.h>
-
-#define PRIV_OML 1
-#define PRIV_RSL 2
-
-/* data structure for one E1 interface with A-bis */
-struct ia_e1_handle {
- struct osmo_fd listen_fd;
- struct osmo_fd rsl_listen_fd;
- struct gsm_network *gsmnet;
-};
-
-static struct ia_e1_handle *e1h;
-
-
-#define TS1_ALLOC_SIZE 900
-
-/*
- * Common propietary IPA messages:
- * - PONG: in reply to PING.
- * - ID_REQUEST: first messages once OML has been established.
- * - ID_ACK: in reply to ID_ACK.
- */
-const uint8_t ipa_pong_msg[] = {
- 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_PONG
-};
-
-const uint8_t ipa_id_ack_msg[] = {
- 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_ACK
-};
-
-const uint8_t ipa_id_req_msg[] = {
- 0, 17, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_GET,
- 0x01, IPAC_IDTAG_UNIT,
- 0x01, IPAC_IDTAG_MACADDR,
- 0x01, IPAC_IDTAG_LOCATION1,
- 0x01, IPAC_IDTAG_LOCATION2,
- 0x01, IPAC_IDTAG_EQUIPVERS,
- 0x01, IPAC_IDTAG_SWVERSION,
- 0x01, IPAC_IDTAG_UNITNAME,
- 0x01, IPAC_IDTAG_SERNR,
-};
-
-static const char *idtag_names[] = {
- [IPAC_IDTAG_SERNR] = "Serial_Number",
- [IPAC_IDTAG_UNITNAME] = "Unit_Name",
- [IPAC_IDTAG_LOCATION1] = "Location_1",
- [IPAC_IDTAG_LOCATION2] = "Location_2",
- [IPAC_IDTAG_EQUIPVERS] = "Equipment_Version",
- [IPAC_IDTAG_SWVERSION] = "Software_Version",
- [IPAC_IDTAG_IPADDR] = "IP_Address",
- [IPAC_IDTAG_MACADDR] = "MAC_Address",
- [IPAC_IDTAG_UNIT] = "Unit_ID",
-};
-
-const char *ipaccess_idtag_name(uint8_t tag)
-{
- if (tag >= ARRAY_SIZE(idtag_names))
- return "unknown";
-
- return idtag_names[tag];
-}
-
-int ipaccess_idtag_parse(struct tlv_parsed *dec, unsigned char *buf, int len)
-{
- uint8_t t_len;
- uint8_t t_tag;
- uint8_t *cur = buf;
-
- memset(dec, 0, sizeof(*dec));
-
- while (len >= 2) {
- len -= 2;
- t_len = *cur++;
- t_tag = *cur++;
-
- if (t_len > len + 1) {
- LOGP(DMI, LOGL_ERROR, "The tag does not fit: %d\n", t_len);
- return -EINVAL;
- }
-
- DEBUGPC(DMI, "%s='%s' ", ipaccess_idtag_name(t_tag), cur);
-
- dec->lv[t_tag].len = t_len;
- dec->lv[t_tag].val = cur;
-
- cur += t_len;
- len -= t_len;
- }
- return 0;
-}
-
-struct gsm_bts *find_bts_by_unitid(struct gsm_network *net,
- uint16_t site_id, uint16_t bts_id)
-{
- struct gsm_bts *bts;
-
- llist_for_each_entry(bts, &net->bts_list, list) {
-
- if (!is_ipaccess_bts(bts))
- continue;
-
- if (bts->ip_access.site_id == site_id &&
- bts->ip_access.bts_id == bts_id)
- return bts;
- }
-
- return NULL;
-}
-
-int ipaccess_parse_unitid(const char *str, uint16_t *site_id,
- uint16_t *bts_id, uint16_t *trx_id)
-{
- unsigned long ul;
- char *endptr;
- const char *nptr;
-
- nptr = str;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (site_id)
- *site_id = ul & 0xffff;
-
- if (*endptr++ != '/')
- return -EINVAL;
-
- nptr = endptr;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (bts_id)
- *bts_id = ul & 0xffff;
-
- if (*endptr++ != '/')
- return -EINVAL;
-
- nptr = endptr;
- ul = strtoul(nptr, &endptr, 10);
- if (endptr <= nptr)
- return -EINVAL;
- if (trx_id)
- *trx_id = ul & 0xffff;
-
- return 0;
-}
-
-static int ipaccess_send(int fd, const void *msg, size_t msglen)
-{
- int ret;
-
- ret = write(fd, msg, msglen);
- if (ret < 0)
- return ret;
- if (ret < msglen) {
- LOGP(DINP, LOGL_ERROR, "ipaccess_send: short write\n");
- return -EIO;
- }
- return ret;
-}
-
-int ipaccess_send_pong(int fd)
-{
- return ipaccess_send(fd, ipa_pong_msg, sizeof(ipa_pong_msg));
-}
-
-int ipaccess_send_id_ack(int fd)
-{
- return ipaccess_send(fd, ipa_id_ack_msg, sizeof(ipa_id_ack_msg));
-}
-
-int ipaccess_send_id_req(int fd)
-{
- return ipaccess_send(fd, ipa_id_req_msg, sizeof(ipa_id_req_msg));
-}
-
-/* base handling of the ip.access protocol */
-int ipaccess_rcvmsg_base(struct msgb *msg,
- struct osmo_fd *bfd)
-{
- uint8_t msg_type = *(msg->l2h);
- int ret = 0;
-
- switch (msg_type) {
- case IPAC_MSGT_PING:
- ret = ipaccess_send_pong(bfd->fd);
- break;
- case IPAC_MSGT_PONG:
- DEBUGP(DMI, "PONG!\n");
- break;
- case IPAC_MSGT_ID_ACK:
- DEBUGP(DMI, "ID_ACK? -> ACK!\n");
- ret = ipaccess_send_id_ack(bfd->fd);
- break;
- }
- return 0;
-}
-
-static int ipaccess_rcvmsg(struct e1inp_line *line, struct msgb *msg,
- struct osmo_fd *bfd)
-{
- struct tlv_parsed tlvp;
- uint8_t msg_type = *(msg->l2h);
- uint16_t site_id = 0, bts_id = 0, trx_id = 0;
- struct gsm_bts *bts;
- char *unitid;
- int len, ret;
-
- /* handle base messages */
- ipaccess_rcvmsg_base(msg, bfd);
-
- switch (msg_type) {
- case IPAC_MSGT_ID_RESP:
- DEBUGP(DMI, "ID_RESP ");
- /* parse tags, search for Unit ID */
- ret = ipaccess_idtag_parse(&tlvp, (uint8_t *)msg->l2h + 2,
- msgb_l2len(msg)-2);
- DEBUGP(DMI, "\n");
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR, "ignoring IPA response message "
- "with malformed TLVs\n");
- return ret;
- }
- if (!TLVP_PRESENT(&tlvp, IPAC_IDTAG_UNIT))
- break;
-
- len = TLVP_LEN(&tlvp, IPAC_IDTAG_UNIT);
- if (len < 1)
- break;
-
- /* lookup BTS, create sign_link, ... */
- unitid = (char *) TLVP_VAL(&tlvp, IPAC_IDTAG_UNIT);
- unitid[len - 1] = '\0';
- ipaccess_parse_unitid(unitid, &site_id, &bts_id, &trx_id);
- bts = find_bts_by_unitid(e1h->gsmnet, site_id, bts_id);
- if (!bts) {
- LOGP(DINP, LOGL_ERROR, "Unable to find BTS configuration for "
- " %u/%u/%u, disconnecting\n", site_id, bts_id,
- trx_id);
- return -EIO;
- }
- DEBUGP(DINP, "Identified BTS %u/%u/%u\n", site_id, bts_id, trx_id);
- if (bfd->priv_nr == PRIV_OML) {
- /* drop any old oml connection */
- ipaccess_drop_oml(bts);
- bts->oml_link = e1inp_sign_link_create(&line->ts[PRIV_OML - 1],
- E1INP_SIGN_OML, bts->c0,
- bts->oml_tei, 0);
- } else if (bfd->priv_nr == PRIV_RSL) {
- struct e1inp_ts *e1i_ts;
- struct osmo_fd *newbfd;
- struct gsm_bts_trx *trx = gsm_bts_trx_num(bts, trx_id);
-
- /* drop any old rsl connection */
- ipaccess_drop_rsl(trx);
-
- if (!bts->oml_link) {
- osmo_fd_unregister(bfd);
- close(bfd->fd);
- bfd->fd = -1;
- talloc_free(bfd);
- return 0;
- }
-
- bfd->data = line = bts->oml_link->ts->line;
- e1i_ts = &line->ts[PRIV_RSL + trx_id - 1];
- newbfd = &e1i_ts->driver.ipaccess.fd;
- e1inp_ts_config(e1i_ts, line, E1INP_TS_TYPE_SIGN);
-
- trx->rsl_link = e1inp_sign_link_create(e1i_ts,
- E1INP_SIGN_RSL, trx,
- trx->rsl_tei, 0);
- trx->rsl_link->ts->sign.delay = 0;
-
- /* get rid of our old temporary bfd */
- memcpy(newbfd, bfd, sizeof(*newbfd));
- newbfd->priv_nr = PRIV_RSL + trx_id;
- osmo_fd_unregister(bfd);
- bfd->fd = -1;
- talloc_free(bfd);
- osmo_fd_register(newbfd);
- }
- break;
- }
- return 0;
-}
-
-#define OML_UP 0x0001
-#define RSL_UP 0x0002
-
-/*
- * read one ipa message from the socket
- * return NULL in case of error
- */
-struct msgb *ipaccess_read_msg(struct osmo_fd *bfd, int *error)
-{
- struct msgb *msg = msgb_alloc(TS1_ALLOC_SIZE, "Abis/IP");
- struct ipaccess_head *hh;
- int len, ret = 0;
-
- if (!msg) {
- *error = -ENOMEM;
- return NULL;
- }
-
- /* first read our 3-byte header */
- hh = (struct ipaccess_head *) msg->data;
- ret = recv(bfd->fd, msg->data, sizeof(*hh), 0);
- if (ret == 0) {
- msgb_free(msg);
- *error = ret;
- return NULL;
- } else if (ret != sizeof(*hh)) {
- if (errno != EAGAIN)
- LOGP(DINP, LOGL_ERROR, "recv error %d %s\n", ret, strerror(errno));
- msgb_free(msg);
- *error = ret;
- return NULL;
- }
-
- msgb_put(msg, ret);
-
- /* then read te length as specified in header */
- msg->l2h = msg->data + sizeof(*hh);
- len = ntohs(hh->len);
-
- if (len < 0 || TS1_ALLOC_SIZE < len + sizeof(*hh)) {
- LOGP(DINP, LOGL_ERROR, "Can not read this packet. %d avail\n", len);
- msgb_free(msg);
- *error = -EIO;
- return NULL;
- }
-
- ret = recv(bfd->fd, msg->l2h, len, 0);
- if (ret < len) {
- LOGP(DINP, LOGL_ERROR, "short read! Got %d from %d\n", ret, len);
- msgb_free(msg);
- *error = -EIO;
- return NULL;
- }
- msgb_put(msg, ret);
-
- return msg;
-}
-
-int ipaccess_drop_oml(struct gsm_bts *bts)
-{
- struct gsm_bts_trx *trx;
- struct e1inp_ts *ts;
- struct e1inp_line *line;
- struct osmo_fd *bfd;
-
- if (!bts || !bts->oml_link)
- return -1;
-
- /* send OML down */
- ts = bts->oml_link->ts;
- line = ts->line;
- e1inp_event(ts, S_INP_TEI_DN, bts->oml_link->tei, bts->oml_link->sapi);
-
- bfd = &ts->driver.ipaccess.fd;
- osmo_fd_unregister(bfd);
- close(bfd->fd);
- bfd->fd = -1;
-
- /* clean up OML and RSL */
- e1inp_sign_link_destroy(bts->oml_link);
- bts->oml_link = NULL;
- bts->ip_access.flags = 0;
-
- /* drop all RSL connections too */
- llist_for_each_entry(trx, &bts->trx_list, list)
- ipaccess_drop_rsl(trx);
-
- /* kill the E1 line now... as we have no one left to use it */
- talloc_free(line);
-
- return -1;
-}
-
-static int ipaccess_drop(struct e1inp_ts *ts, struct osmo_fd *bfd)
-{
- struct e1inp_sign_link *link;
- int bts_nr;
-
- if (!ts || !bfd->data) {
- /*
- * If we don't have a TS this means that this is a RSL
- * connection but we are not past the authentication
- * handling yet. So we can safely delete this bfd and
- * wait for a reconnect.
- * If we don't have bfd->data this means that a RSL
- * connection was accept()ed, but nothing was recv()ed
- * and the connection gets close()ed.
- */
- osmo_fd_unregister(bfd);
- close(bfd->fd);
- bfd->fd = -1;
- talloc_free(bfd);
- return -1;
- }
-
- /* attempt to find a signalling link */
- if (ts->type == E1INP_TS_TYPE_SIGN) {
- llist_for_each_entry(link, &ts->sign.sign_links, list) {
- bts_nr = link->trx->bts->bts_nr;
- /* we have issues just reconnecting RLS so we drop OML */
- ipaccess_drop_oml(link->trx->bts);
- return bts_nr;
- }
- }
-
- /* error case */
- LOGP(DINP, LOGL_ERROR, "Failed to find a signalling link for ts: %p\n", ts);
- osmo_fd_unregister(bfd);
- close(bfd->fd);
- bfd->fd = -1;
- return -1;
-}
-
-int ipaccess_drop_rsl(struct gsm_bts_trx *trx)
-{
- struct osmo_fd *bfd;
- struct e1inp_ts *ts;
-
- if (!trx || !trx->rsl_link)
- return -1;
-
- /* send RSL down */
- ts = trx->rsl_link->ts;
- e1inp_event(ts, S_INP_TEI_DN, trx->rsl_link->tei, trx->rsl_link->sapi);
-
- /* close the socket */
- bfd = &ts->driver.ipaccess.fd;
- osmo_fd_unregister(bfd);
- close(bfd->fd);
- bfd->fd = -1;
-
- /* destroy */
- e1inp_sign_link_destroy(trx->rsl_link);
- trx->rsl_link = NULL;
-
- return -1;
-}
-
-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;
- struct ipaccess_head *hh;
- int ret = 0, error;
-
- msg = ipaccess_read_msg(bfd, &error);
- if (!msg) {
- if (error == 0) {
- int ret = ipaccess_drop(e1i_ts, bfd);
- if (ret >= 0)
- LOGP(DINP, LOGL_NOTICE, "BTS %u disappeared, dead socket\n",
- ret);
- else
- LOGP(DINP, LOGL_NOTICE, "unknown BTS disappeared, dead socket\n");
- }
- return error;
- }
-
- DEBUGP(DMI, "RX %u: %s\n", ts_nr, osmo_hexdump(msgb_l2(msg), msgb_l2len(msg)));
-
- hh = (struct ipaccess_head *) msg->data;
- if (hh->proto == IPAC_PROTO_IPACCESS) {
- ret = ipaccess_rcvmsg(line, msg, bfd);
- if (ret < 0)
- ipaccess_drop(e1i_ts, bfd);
- msgb_free(msg);
- return ret;
- }
- /* BIG FAT WARNING: bfd might no longer exist here, since ipaccess_rcvmsg()
- * might have free'd it !!! */
-
- link = e1inp_lookup_sign_link(e1i_ts, hh->proto, 0);
- if (!link) {
- LOGP(DINP, LOGL_ERROR, "no matching signalling link for "
- "hh->proto=0x%02x\n", hh->proto);
- msgb_free(msg);
- return -EIO;
- }
- msg->dst = link;
-
- switch (link->type) {
- case E1INP_SIGN_RSL:
- if (!(link->trx->bts->ip_access.flags & (RSL_UP << link->trx->nr))) {
- e1inp_event(e1i_ts, S_INP_TEI_UP, link->tei, link->sapi);
- link->trx->bts->ip_access.flags |= (RSL_UP << link->trx->nr);
- }
- ret = abis_rsl_rcvmsg(msg);
- break;
- case E1INP_SIGN_OML:
- if (!(link->trx->bts->ip_access.flags & OML_UP)) {
- e1inp_event(e1i_ts, S_INP_TEI_UP, link->tei, link->sapi);
- link->trx->bts->ip_access.flags |= OML_UP;
- }
- ret = abis_nm_rcvmsg(msg);
- break;
- default:
- LOGP(DINP, LOGL_NOTICE, "Unknown IP.access protocol proto=0x%02x\n", hh->proto);
- msgb_free(msg);
- break;
- }
- return ret;
-}
-
-void ipaccess_prepend_header_ext(struct msgb *msg, int proto)
-{
- struct ipaccess_head_ext *hh_ext;
-
- /* prepend the osmo ip.access header extension */
- hh_ext = (struct ipaccess_head_ext *) msgb_push(msg, sizeof(*hh_ext));
- hh_ext->proto = proto;
-}
-
-void ipaccess_prepend_header(struct msgb *msg, int proto)
-{
- struct ipaccess_head *hh;
-
- /* prepend the ip.access header */
- hh = (struct ipaccess_head *) msgb_push(msg, sizeof(*hh));
- hh->len = htons(msg->len - sizeof(*hh));
- hh->proto = proto;
-}
-
-static int ts_want_write(struct e1inp_ts *e1i_ts)
-{
- e1i_ts->driver.ipaccess.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 msgb *msg;
- uint8_t proto;
- 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;
- }
-
- switch (sign_link->type) {
- case E1INP_SIGN_OML:
- proto = IPAC_PROTO_OML;
- break;
- case E1INP_SIGN_RSL:
- proto = IPAC_PROTO_RSL;
- break;
- default:
- msgb_free(msg);
- bfd->when |= BSC_FD_WRITE; /* come back for more msg */
- return -EINVAL;
- }
-
- msg->l2h = msg->data;
- ipaccess_prepend_header(msg, sign_link->tei);
-
- DEBUGP(DMI, "TX %u: %s\n", ts_nr, osmo_hexdump(msg->l2h, msgb_l2len(msg)));
-
- ret = send(bfd->fd, msg->data, msg->len, 0);
- 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;
-
- /* Reducing this might break the nanoBTS 900 init. */
- osmo_timer_schedule(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay);
-
- return ret;
-}
-
-/* callback from select.c in case one of the fd's can be read/written */
-static int ipaccess_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;
- int rc = 0;
-
- /* In case of early RSL we might not yet have a line */
-
- if (line)
- e1i_ts = &line->ts[idx];
-
- if (!line || e1i_ts->type == E1INP_TS_TYPE_SIGN) {
- if (what & BSC_FD_READ)
- rc = handle_ts1_read(bfd);
- if (what & BSC_FD_WRITE)
- rc = handle_ts1_write(bfd);
- } else
- LOGP(DINP, LOGL_ERROR, "unknown E1 TS type %u\n", e1i_ts->type);
-
- return rc;
-}
-
-struct e1inp_driver ipaccess_driver = {
- .name = "ip.access",
- .want_write = ts_want_write,
- .default_delay = 0,
-};
-
-/* callback of the OML listening filedescriptor */
-static int listen_fd_cb(struct osmo_fd *listen_bfd, unsigned int what)
-{
- int ret;
- int idx = 0;
- int i;
- struct e1inp_line *line;
- struct e1inp_ts *e1i_ts;
- struct osmo_fd *bfd;
- struct sockaddr_in sa;
- socklen_t sa_len = sizeof(sa);
-
- if (!(what & BSC_FD_READ))
- return 0;
-
- ret = accept(listen_bfd->fd, (struct sockaddr *) &sa, &sa_len);
- if (ret < 0) {
- perror("accept");
- return ret;
- }
- LOGP(DINP, LOGL_NOTICE, "accept()ed new OML link from %s\n",
- inet_ntoa(sa.sin_addr));
-
- line = talloc_zero(tall_bsc_ctx, struct e1inp_line);
- if (!line) {
- close(ret);
- return -ENOMEM;
- }
- line->driver = &ipaccess_driver;
- //line->driver_data = e1h;
- /* create virrtual E1 timeslots for signalling */
- e1inp_ts_config(&line->ts[1-1], line, E1INP_TS_TYPE_SIGN);
-
- /* initialize the fds */
- for (i = 0; i < ARRAY_SIZE(line->ts); ++i)
- line->ts[i].driver.ipaccess.fd.fd = -1;
-
- e1i_ts = &line->ts[idx];
-
- bfd = &e1i_ts->driver.ipaccess.fd;
- bfd->fd = ret;
- bfd->data = line;
- bfd->priv_nr = PRIV_OML;
- bfd->cb = ipaccess_fd_cb;
- bfd->when = BSC_FD_READ;
- ret = osmo_fd_register(bfd);
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR, "could not register FD\n");
- close(bfd->fd);
- talloc_free(line);
- return ret;
- }
-
- /* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */
- ret = ipaccess_send_id_req(bfd->fd);
-
- return ret;
- //return e1inp_line_register(line);
-}
-
-static int rsl_listen_fd_cb(struct osmo_fd *listen_bfd, unsigned int what)
-{
- struct sockaddr_in sa;
- socklen_t sa_len = sizeof(sa);
- struct osmo_fd *bfd;
- int ret;
-
- if (!(what & BSC_FD_READ))
- return 0;
-
- bfd = talloc_zero(tall_bsc_ctx, struct osmo_fd);
- if (!bfd)
- return -ENOMEM;
-
- /* Some BTS has connected to us, but we don't know yet which line
- * (as created by the OML link) to associate it with. Thus, we
- * allocate a temporary bfd until we have received ID from BTS */
-
- bfd->fd = accept(listen_bfd->fd, (struct sockaddr *) &sa, &sa_len);
- if (bfd->fd < 0) {
- perror("accept");
- return bfd->fd;
- }
- LOGP(DINP, LOGL_NOTICE, "accept()ed new RSL link from %s\n", inet_ntoa(sa.sin_addr));
- bfd->priv_nr = PRIV_RSL;
- bfd->cb = ipaccess_fd_cb;
- bfd->when = BSC_FD_READ;
- ret = osmo_fd_register(bfd);
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR, "could not register FD\n");
- close(bfd->fd);
- talloc_free(bfd);
- return ret;
- }
- /* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */
- ret = ipaccess_send_id_req(bfd->fd);
-
- return 0;
-}
-
-/* Actively connect to a BTS. Currently used by ipaccess-config.c */
-int ipaccess_connect(struct e1inp_line *line, struct sockaddr_in *sa)
-{
- struct e1inp_ts *e1i_ts = &line->ts[0];
- struct osmo_fd *bfd = &e1i_ts->driver.ipaccess.fd;
- int ret, on = 1;
-
- bfd->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- bfd->cb = ipaccess_fd_cb;
- bfd->when = BSC_FD_READ | BSC_FD_WRITE;
- bfd->data = line;
- bfd->priv_nr = PRIV_OML;
-
- if (bfd->fd < 0) {
- LOGP(DINP, LOGL_ERROR, "could not create TCP socket.\n");
- return -EIO;
- }
-
- setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
- ret = connect(bfd->fd, (struct sockaddr *) sa, sizeof(*sa));
- if (ret < 0) {
- LOGP(DINP, LOGL_ERROR, "could not connect socket\n");
- close(bfd->fd);
- return ret;
- }
-
- ret = osmo_fd_register(bfd);
- if (ret < 0) {
- close(bfd->fd);
- return ret;
- }
-
- line->driver = &ipaccess_driver;
-
- return ret;
- //return e1inp_line_register(line);
-}
-
-int ipaccess_setup(struct gsm_network *gsmnet)
-{
- int ret;
-
- e1h = talloc_zero(tall_bsc_ctx, struct ia_e1_handle);
- if (!e1h)
- return -ENOMEM;
-
- e1h->gsmnet = gsmnet;
-
- /* Listen for OML connections */
- ret = make_sock(&e1h->listen_fd, IPPROTO_TCP, INADDR_ANY,
- IPA_TCP_PORT_OML, 0, listen_fd_cb, NULL);
- if (ret < 0)
- return ret;
-
- /* Listen for RSL connections */
- ret = make_sock(&e1h->rsl_listen_fd, IPPROTO_TCP, INADDR_ANY,
- IPA_TCP_PORT_RSL, 0, rsl_listen_fd_cb, NULL);
- if (ret < 0)
- return ret;
-
- return ret;
-}
-
-void e1inp_ipaccess_init(void)
-{
- e1inp_driver_register(&ipaccess_driver);
-}