Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1 | /* OpenBSC Abis input driver for ip.access */ |
| 2 | |
| 3 | /* (C) 2009 by Harald Welte <laforge@gnumonks.org> |
| 4 | * (C) 2010 by Holger Hans Peter Freyther |
| 5 | * (C) 2010 by On-Waves |
| 6 | * |
| 7 | * All Rights Reserved |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU Affero General Public License as published by |
| 11 | * the Free Software Foundation; either version 3 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU Affero General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Affero General Public License |
| 20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | #include "internal.h" |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | #include <unistd.h> |
| 28 | #include <stdlib.h> |
Pablo Neira Ayuso | eb43413 | 2011-07-07 19:19:46 +0200 | [diff] [blame] | 29 | #include <stdbool.h> |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 30 | #include <errno.h> |
Daniel Willmann | 8598072 | 2014-01-09 14:30:55 +0100 | [diff] [blame] | 31 | #include <netinet/tcp.h> |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 32 | #include <string.h> |
| 33 | #include <time.h> |
| 34 | #include <sys/fcntl.h> |
| 35 | #include <sys/socket.h> |
| 36 | #include <sys/ioctl.h> |
| 37 | #include <arpa/inet.h> |
| 38 | |
| 39 | #include <osmocom/core/select.h> |
| 40 | #include <osmocom/gsm/tlv.h> |
| 41 | #include <osmocom/core/msgb.h> |
| 42 | #include <osmocom/core/logging.h> |
Harald Welte | 71d87b2 | 2011-07-18 14:49:56 +0200 | [diff] [blame] | 43 | #include <osmocom/core/talloc.h> |
Pablo Neira Ayuso | 177094b | 2011-06-07 12:21:51 +0200 | [diff] [blame] | 44 | #include <osmocom/abis/e1_input.h> |
| 45 | #include <osmocom/abis/ipaccess.h> |
Pablo Neira Ayuso | f67471f | 2011-06-07 11:25:49 +0200 | [diff] [blame] | 46 | #include <osmocom/core/socket.h> |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 47 | #include <osmocom/abis/ipa.h> |
Pablo Neira Ayuso | ef13269 | 2013-07-08 01:17:27 +0200 | [diff] [blame] | 48 | #include <osmocom/core/backtrace.h> |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 49 | |
Pablo Neira Ayuso | 54b4979 | 2011-06-07 12:15:26 +0200 | [diff] [blame] | 50 | static void *tall_ipa_ctx; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 51 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 52 | #define TS1_ALLOC_SIZE 900 |
| 53 | |
Daniel Willmann | 8598072 | 2014-01-09 14:30:55 +0100 | [diff] [blame] | 54 | #define DEFAULT_TCP_KEEPALIVE_IDLE_TIMEOUT 30 |
| 55 | #define DEFAULT_TCP_KEEPALIVE_INTERVAL 3 |
| 56 | #define DEFAULT_TCP_KEEPALIVE_RETRY_COUNT 10 |
| 57 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 58 | /* |
| 59 | * Common propietary IPA messages: |
| 60 | * - PONG: in reply to PING. |
| 61 | * - ID_REQUEST: first messages once OML has been established. |
| 62 | * - ID_ACK: in reply to ID_ACK. |
| 63 | */ |
Holger Hans Peter Freyther | 901ef1c | 2014-01-16 15:35:53 +0100 | [diff] [blame] | 64 | static const uint8_t ipa_pong_msg[] = { |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 65 | 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_PONG |
| 66 | }; |
| 67 | |
Holger Hans Peter Freyther | 901ef1c | 2014-01-16 15:35:53 +0100 | [diff] [blame] | 68 | static const uint8_t ipa_id_ack_msg[] = { |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 69 | 0, 1, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_ACK |
| 70 | }; |
| 71 | |
Holger Hans Peter Freyther | 901ef1c | 2014-01-16 15:35:53 +0100 | [diff] [blame] | 72 | static const uint8_t ipa_id_req_msg[] = { |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 73 | 0, 17, IPAC_PROTO_IPACCESS, IPAC_MSGT_ID_GET, |
| 74 | 0x01, IPAC_IDTAG_UNIT, |
| 75 | 0x01, IPAC_IDTAG_MACADDR, |
| 76 | 0x01, IPAC_IDTAG_LOCATION1, |
| 77 | 0x01, IPAC_IDTAG_LOCATION2, |
| 78 | 0x01, IPAC_IDTAG_EQUIPVERS, |
| 79 | 0x01, IPAC_IDTAG_SWVERSION, |
| 80 | 0x01, IPAC_IDTAG_UNITNAME, |
| 81 | 0x01, IPAC_IDTAG_SERNR, |
| 82 | }; |
| 83 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 84 | static const char *idtag_names[] = { |
| 85 | [IPAC_IDTAG_SERNR] = "Serial_Number", |
| 86 | [IPAC_IDTAG_UNITNAME] = "Unit_Name", |
| 87 | [IPAC_IDTAG_LOCATION1] = "Location_1", |
| 88 | [IPAC_IDTAG_LOCATION2] = "Location_2", |
| 89 | [IPAC_IDTAG_EQUIPVERS] = "Equipment_Version", |
| 90 | [IPAC_IDTAG_SWVERSION] = "Software_Version", |
| 91 | [IPAC_IDTAG_IPADDR] = "IP_Address", |
| 92 | [IPAC_IDTAG_MACADDR] = "MAC_Address", |
| 93 | [IPAC_IDTAG_UNIT] = "Unit_ID", |
| 94 | }; |
| 95 | |
| 96 | const char *ipaccess_idtag_name(uint8_t tag) |
| 97 | { |
| 98 | if (tag >= ARRAY_SIZE(idtag_names)) |
| 99 | return "unknown"; |
| 100 | |
| 101 | return idtag_names[tag]; |
| 102 | } |
| 103 | |
| 104 | int ipaccess_idtag_parse(struct tlv_parsed *dec, unsigned char *buf, int len) |
| 105 | { |
| 106 | uint8_t t_len; |
| 107 | uint8_t t_tag; |
| 108 | uint8_t *cur = buf; |
| 109 | |
| 110 | memset(dec, 0, sizeof(*dec)); |
| 111 | |
| 112 | while (len >= 2) { |
| 113 | len -= 2; |
| 114 | t_len = *cur++; |
| 115 | t_tag = *cur++; |
| 116 | |
| 117 | if (t_len > len + 1) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 118 | LOGP(DLMI, LOGL_ERROR, "The tag does not fit: %d\n", t_len); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 119 | return -EINVAL; |
| 120 | } |
| 121 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 122 | DEBUGPC(DLMI, "%s='%s' ", ipaccess_idtag_name(t_tag), cur); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 123 | |
| 124 | dec->lv[t_tag].len = t_len; |
| 125 | dec->lv[t_tag].val = cur; |
| 126 | |
| 127 | cur += t_len; |
| 128 | len -= t_len; |
| 129 | } |
| 130 | return 0; |
| 131 | } |
| 132 | |
| 133 | int ipaccess_parse_unitid(const char *str, struct ipaccess_unit *unit_data) |
| 134 | { |
| 135 | unsigned long ul; |
| 136 | char *endptr; |
| 137 | const char *nptr; |
| 138 | |
| 139 | nptr = str; |
| 140 | ul = strtoul(nptr, &endptr, 10); |
| 141 | if (endptr <= nptr) |
| 142 | return -EINVAL; |
Pablo Neira Ayuso | 62d345a | 2011-07-05 16:37:37 +0200 | [diff] [blame] | 143 | unit_data->site_id = ul & 0xffff; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 144 | |
| 145 | if (*endptr++ != '/') |
| 146 | return -EINVAL; |
| 147 | |
| 148 | nptr = endptr; |
| 149 | ul = strtoul(nptr, &endptr, 10); |
| 150 | if (endptr <= nptr) |
| 151 | return -EINVAL; |
Pablo Neira Ayuso | 62d345a | 2011-07-05 16:37:37 +0200 | [diff] [blame] | 152 | unit_data->bts_id = ul & 0xffff; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 153 | |
| 154 | if (*endptr++ != '/') |
| 155 | return -EINVAL; |
| 156 | |
| 157 | nptr = endptr; |
| 158 | ul = strtoul(nptr, &endptr, 10); |
| 159 | if (endptr <= nptr) |
| 160 | return -EINVAL; |
Pablo Neira Ayuso | 62d345a | 2011-07-05 16:37:37 +0200 | [diff] [blame] | 161 | unit_data->trx_id = ul & 0xffff; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 162 | |
| 163 | return 0; |
| 164 | } |
| 165 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 166 | static int ipaccess_send(int fd, const void *msg, size_t msglen) |
| 167 | { |
| 168 | int ret; |
| 169 | |
| 170 | ret = write(fd, msg, msglen); |
| 171 | if (ret < 0) |
| 172 | return ret; |
| 173 | if (ret < msglen) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 174 | LOGP(DLINP, LOGL_ERROR, "ipaccess_send: short write\n"); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 175 | return -EIO; |
| 176 | } |
| 177 | return ret; |
| 178 | } |
| 179 | |
| 180 | int ipaccess_send_pong(int fd) |
| 181 | { |
| 182 | return ipaccess_send(fd, ipa_pong_msg, sizeof(ipa_pong_msg)); |
| 183 | } |
| 184 | |
| 185 | int ipaccess_send_id_ack(int fd) |
| 186 | { |
| 187 | return ipaccess_send(fd, ipa_id_ack_msg, sizeof(ipa_id_ack_msg)); |
| 188 | } |
| 189 | |
| 190 | int ipaccess_send_id_req(int fd) |
| 191 | { |
| 192 | return ipaccess_send(fd, ipa_id_req_msg, sizeof(ipa_id_req_msg)); |
| 193 | } |
| 194 | |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 195 | /* base handling of the ip.access protocol */ |
Harald Welte | bc25bca | 2011-08-19 22:32:38 +0200 | [diff] [blame] | 196 | int ipaccess_rcvmsg_base(struct msgb *msg, struct osmo_fd *bfd) |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 197 | { |
| 198 | uint8_t msg_type = *(msg->l2h); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 199 | int ret; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 200 | |
| 201 | switch (msg_type) { |
| 202 | case IPAC_MSGT_PING: |
| 203 | ret = ipaccess_send_pong(bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 204 | if (ret < 0) { |
| 205 | LOGP(DLINP, LOGL_ERROR, "Cannot send PING " |
| 206 | "message. Reason: %s\n", strerror(errno)); |
| 207 | break; |
| 208 | } |
| 209 | ret = 1; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 210 | break; |
| 211 | case IPAC_MSGT_PONG: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 212 | DEBUGP(DLMI, "PONG!\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 213 | ret = 1; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 214 | break; |
| 215 | case IPAC_MSGT_ID_ACK: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 216 | DEBUGP(DLMI, "ID_ACK? -> ACK!\n"); |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 217 | ret = ipaccess_send_id_ack(bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 218 | if (ret < 0) { |
| 219 | LOGP(DLINP, LOGL_ERROR, "Cannot send ID_ACK " |
| 220 | "message. Reason: %s\n", strerror(errno)); |
| 221 | break; |
| 222 | } |
| 223 | ret = 1; |
| 224 | break; |
| 225 | default: |
| 226 | /* This is not an IPA PING, PONG or ID_ACK message */ |
| 227 | ret = 0; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 228 | break; |
| 229 | } |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 230 | return ret; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 231 | } |
| 232 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 233 | /* base handling of the ip.access protocol */ |
| 234 | int ipaccess_rcvmsg_bts_base(struct msgb *msg, |
| 235 | struct osmo_fd *bfd) |
| 236 | { |
| 237 | uint8_t msg_type = *(msg->l2h); |
| 238 | int ret = 0; |
| 239 | |
| 240 | switch (msg_type) { |
| 241 | case IPAC_MSGT_PING: |
| 242 | ret = ipaccess_send_pong(bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 243 | if (ret < 0) { |
| 244 | LOGP(DLINP, LOGL_ERROR, "Cannot send PONG " |
| 245 | "message. Reason: %s\n", strerror(errno)); |
| 246 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 247 | break; |
| 248 | case IPAC_MSGT_PONG: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 249 | DEBUGP(DLMI, "PONG!\n"); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 250 | break; |
| 251 | case IPAC_MSGT_ID_ACK: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 252 | DEBUGP(DLMI, "ID_ACK\n"); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 253 | break; |
| 254 | } |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 255 | return ret; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 256 | } |
| 257 | |
Harald Welte | 10b4130 | 2013-06-30 14:05:49 +0200 | [diff] [blame] | 258 | static int ipaccess_drop(struct osmo_fd *bfd, struct e1inp_line *line) |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 259 | { |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 260 | int ret = 1; |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 261 | unsigned int ts_nr = bfd->priv_nr; |
| 262 | struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 263 | |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 264 | /* Error case: we did not see any ID_RESP yet for this socket. */ |
| 265 | if (bfd->fd != -1) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 266 | LOGP(DLINP, LOGL_ERROR, "Forcing socket shutdown with " |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 267 | "no signal link set\n"); |
Pablo Neira Ayuso | 9621b41 | 2011-07-07 16:19:21 +0200 | [diff] [blame] | 268 | osmo_fd_unregister(bfd); |
| 269 | close(bfd->fd); |
| 270 | bfd->fd = -1; |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 271 | ret = -ENOENT; |
Pablo Neira Ayuso | 9621b41 | 2011-07-07 16:19:21 +0200 | [diff] [blame] | 272 | } |
Pablo Neira Ayuso | 6cc3f92 | 2012-08-22 13:57:58 +0200 | [diff] [blame] | 273 | |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 274 | msgb_free(e1i_ts->pending_msg); |
| 275 | e1i_ts->pending_msg = NULL; |
| 276 | |
Pablo Neira Ayuso | 6cc3f92 | 2012-08-22 13:57:58 +0200 | [diff] [blame] | 277 | /* e1inp_sign_link_destroy releases the socket descriptors for us. */ |
| 278 | line->ops->sign_link_down(line); |
| 279 | |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 280 | return ret; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 281 | } |
| 282 | |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 283 | static int ipaccess_rcvmsg(struct e1inp_line *line, struct msgb *msg, |
| 284 | struct osmo_fd *bfd) |
| 285 | { |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 286 | struct tlv_parsed tlvp; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 287 | uint8_t msg_type = *(msg->l2h); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 288 | struct ipaccess_unit unit_data = {}; |
| 289 | struct e1inp_sign_link *sign_link; |
| 290 | char *unitid; |
| 291 | int len, ret; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 292 | |
Pablo Neira Ayuso | eb43413 | 2011-07-07 19:19:46 +0200 | [diff] [blame] | 293 | /* Handle IPA PING, PONG and ID_ACK messages. */ |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 294 | ret = ipaccess_rcvmsg_base(msg, bfd); |
| 295 | switch(ret) { |
| 296 | case -1: |
| 297 | /* error in IPA control message handling */ |
| 298 | goto err; |
| 299 | case 1: |
| 300 | /* this is an IPA control message, skip further processing */ |
Pablo Neira Ayuso | eb43413 | 2011-07-07 19:19:46 +0200 | [diff] [blame] | 301 | return 0; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 302 | case 0: |
| 303 | /* this is not an IPA control message, continue */ |
| 304 | break; |
| 305 | default: |
| 306 | LOGP(DLINP, LOGL_ERROR, "Unexpected return from " |
| 307 | "ipaccess_rcvmsg_base " |
| 308 | "(ret=%d)\n", ret); |
| 309 | goto err; |
| 310 | } |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 311 | |
| 312 | switch (msg_type) { |
| 313 | case IPAC_MSGT_ID_RESP: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 314 | DEBUGP(DLMI, "ID_RESP\n"); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 315 | /* parse tags, search for Unit ID */ |
| 316 | ret = ipaccess_idtag_parse(&tlvp, (uint8_t *)msg->l2h + 2, |
| 317 | msgb_l2len(msg)-2); |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 318 | DEBUGP(DLMI, "\n"); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 319 | if (ret < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 320 | LOGP(DLINP, LOGL_ERROR, "IPA response message " |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 321 | "with malformed TLVs\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 322 | ret = -EINVAL; |
| 323 | goto err; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 324 | } |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 325 | if (!TLVP_PRESENT(&tlvp, IPAC_IDTAG_UNIT)) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 326 | LOGP(DLINP, LOGL_ERROR, "IPA response message " |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 327 | "without unit ID\n"); |
| 328 | ret = -EINVAL; |
| 329 | goto err; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 330 | |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 331 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 332 | len = TLVP_LEN(&tlvp, IPAC_IDTAG_UNIT); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 333 | if (len < 1) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 334 | LOGP(DLINP, LOGL_ERROR, "IPA response message " |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 335 | "with too small unit ID\n"); |
| 336 | ret = -EINVAL; |
| 337 | goto err; |
| 338 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 339 | unitid = (char *) TLVP_VAL(&tlvp, IPAC_IDTAG_UNIT); |
| 340 | unitid[len - 1] = '\0'; |
| 341 | ipaccess_parse_unitid(unitid, &unit_data); |
| 342 | |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 343 | if (!line->ops->sign_link_up) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 344 | LOGP(DLINP, LOGL_ERROR, |
Pablo Neira Ayuso | cd8d2e5 | 2011-07-02 17:05:21 +0200 | [diff] [blame] | 345 | "Unable to set signal link, closing socket.\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 346 | ret = -EINVAL; |
| 347 | goto err; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 348 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 349 | /* the BSC creates the new sign links at this stage. */ |
| 350 | if (bfd->priv_nr == E1INP_SIGN_OML) { |
| 351 | sign_link = |
| 352 | line->ops->sign_link_up(&unit_data, line, |
| 353 | E1INP_SIGN_OML); |
| 354 | if (sign_link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 355 | LOGP(DLINP, LOGL_ERROR, |
Pablo Neira Ayuso | cd8d2e5 | 2011-07-02 17:05:21 +0200 | [diff] [blame] | 356 | "Unable to set signal link, " |
| 357 | "closing socket.\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 358 | ret = -EINVAL; |
| 359 | goto err; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 360 | } |
| 361 | } else if (bfd->priv_nr == E1INP_SIGN_RSL) { |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 362 | struct e1inp_ts *ts; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 363 | struct osmo_fd *newbfd; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 364 | struct e1inp_line *new_line; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 365 | |
| 366 | sign_link = |
| 367 | line->ops->sign_link_up(&unit_data, line, |
| 368 | E1INP_SIGN_RSL); |
| 369 | if (sign_link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 370 | LOGP(DLINP, LOGL_ERROR, |
Pablo Neira Ayuso | cd8d2e5 | 2011-07-02 17:05:21 +0200 | [diff] [blame] | 371 | "Unable to set signal link, " |
| 372 | "closing socket.\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 373 | ret = -EINVAL; |
| 374 | goto err; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 375 | } |
Pablo Neira Ayuso | db1c8a7 | 2011-07-08 15:12:03 +0200 | [diff] [blame] | 376 | /* this is a bugtrap, the BSC should be using the |
| 377 | * virtual E1 line used by OML for this RSL link. */ |
| 378 | if (sign_link->ts->line == line) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 379 | LOGP(DLINP, LOGL_ERROR, |
Pablo Neira Ayuso | db1c8a7 | 2011-07-08 15:12:03 +0200 | [diff] [blame] | 380 | "Fix your BSC, you should use the " |
| 381 | "E1 line used by the OML link for " |
| 382 | "your RSL link.\n"); |
| 383 | return 0; |
| 384 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 385 | /* Finally, we know which OML link is associated with |
| 386 | * this RSL link, attach it to this socket. */ |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 387 | bfd->data = new_line = sign_link->ts->line; |
| 388 | e1inp_line_get(new_line); |
| 389 | ts = &new_line->ts[E1INP_SIGN_RSL+unit_data.trx_id-1]; |
| 390 | newbfd = &ts->driver.ipaccess.fd; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 391 | |
| 392 | /* get rid of our old temporary bfd */ |
| 393 | memcpy(newbfd, bfd, sizeof(*newbfd)); |
| 394 | newbfd->priv_nr = E1INP_SIGN_RSL + unit_data.trx_id; |
| 395 | osmo_fd_unregister(bfd); |
| 396 | bfd->fd = -1; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 397 | osmo_fd_register(newbfd); |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 398 | /* now we can release the dummy RSL line. */ |
| 399 | e1inp_line_put(line); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 400 | } |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 401 | break; |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 402 | default: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 403 | LOGP(DLINP, LOGL_ERROR, "Unknown IPA message type\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 404 | ret = -EINVAL; |
| 405 | goto err; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 406 | } |
| 407 | return 0; |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 408 | err: |
| 409 | osmo_fd_unregister(bfd); |
| 410 | close(bfd->fd); |
| 411 | bfd->fd = -1; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 412 | e1inp_line_put(line); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 413 | return ret; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 414 | } |
| 415 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 416 | static int handle_ts1_read(struct osmo_fd *bfd) |
| 417 | { |
| 418 | struct e1inp_line *line = bfd->data; |
| 419 | unsigned int ts_nr = bfd->priv_nr; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 420 | struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 421 | struct e1inp_sign_link *link; |
| 422 | struct ipaccess_head *hh; |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 423 | struct msgb *msg = NULL; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 424 | int ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 425 | |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 426 | ret = ipa_msg_recv_buffered(bfd->fd, &msg, &e1i_ts->pending_msg); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 427 | if (ret < 0) { |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 428 | if (ret == -EAGAIN) |
| 429 | return 0; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 430 | LOGP(DLINP, LOGL_NOTICE, "Sign link problems, " |
Jacob Erlbeck | 98af3c3 | 2014-03-31 10:53:32 +0200 | [diff] [blame] | 431 | "closing socket. Reason: %s\n", strerror(-ret)); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 432 | goto err; |
| 433 | } else if (ret == 0) { |
| 434 | LOGP(DLINP, LOGL_NOTICE, "Sign link vanished, dead socket\n"); |
| 435 | goto err; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 436 | } |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 437 | DEBUGP(DLMI, "RX %u: %s\n", ts_nr, osmo_hexdump(msgb_l2(msg), msgb_l2len(msg))); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 438 | |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 439 | hh = (struct ipaccess_head *) msg->data; |
| 440 | if (hh->proto == IPAC_PROTO_IPACCESS) { |
| 441 | ipaccess_rcvmsg(line, msg, bfd); |
| 442 | msgb_free(msg); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 443 | return 0; |
Holger Hans Peter Freyther | 63ddf46 | 2013-12-28 21:19:19 +0100 | [diff] [blame] | 444 | } else if (e1i_ts->type == E1INP_TS_TYPE_NONE) { |
| 445 | /* this sign link is not know yet.. complain. */ |
| 446 | LOGP(DLINP, LOGL_ERROR, "Timeslot is not configured.\n"); |
| 447 | ret = -EINVAL; |
| 448 | goto err_msg; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 449 | } |
| 450 | /* BIG FAT WARNING: bfd might no longer exist here, since ipaccess_rcvmsg() |
| 451 | * might have free'd it !!! */ |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 452 | |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 453 | link = e1inp_lookup_sign_link(e1i_ts, hh->proto, 0); |
| 454 | if (!link) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 455 | LOGP(DLINP, LOGL_ERROR, "no matching signalling link for " |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 456 | "hh->proto=0x%02x\n", hh->proto); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 457 | ret = -EINVAL; |
| 458 | goto err_msg; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 459 | } |
| 460 | msg->dst = link; |
| 461 | |
| 462 | /* XXX better use e1inp_ts_rx? */ |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 463 | if (!e1i_ts->line->ops->sign_link) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 464 | LOGP(DLINP, LOGL_ERROR, "Fix your application, " |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 465 | "no action set for signalling messages.\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 466 | ret = -EINVAL; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 467 | goto err_msg; |
Pablo Neira Ayuso | 5a4b7c5 | 2011-06-07 14:07:48 +0200 | [diff] [blame] | 468 | } |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 469 | if (e1i_ts->line->ops->sign_link(msg) < 0) { |
Pablo Neira Ayuso | a49c24d | 2012-10-16 11:24:08 +0200 | [diff] [blame] | 470 | /* Don't close the signalling link if the upper layers report |
| 471 | * an error, that's too strict. BTW, the signalling layer is |
| 472 | * resposible for releasing the message. |
| 473 | */ |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 474 | LOGP(DLINP, LOGL_ERROR, "Bad signalling message," |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 475 | "sign_link returned error\n"); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 476 | } |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 477 | |
| 478 | return 0; |
| 479 | err_msg: |
| 480 | msgb_free(msg); |
Pablo Neira Ayuso | 466c546 | 2011-07-07 19:17:20 +0200 | [diff] [blame] | 481 | err: |
Harald Welte | 10b4130 | 2013-06-30 14:05:49 +0200 | [diff] [blame] | 482 | ipaccess_drop(bfd, line); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 483 | return ret; |
| 484 | } |
| 485 | |
| 486 | void ipaccess_prepend_header_ext(struct msgb *msg, int proto) |
| 487 | { |
| 488 | struct ipaccess_head_ext *hh_ext; |
| 489 | |
| 490 | /* prepend the osmo ip.access header extension */ |
| 491 | hh_ext = (struct ipaccess_head_ext *) msgb_push(msg, sizeof(*hh_ext)); |
| 492 | hh_ext->proto = proto; |
| 493 | } |
| 494 | |
| 495 | void ipaccess_prepend_header(struct msgb *msg, int proto) |
| 496 | { |
| 497 | struct ipaccess_head *hh; |
| 498 | |
| 499 | /* prepend the ip.access header */ |
| 500 | hh = (struct ipaccess_head *) msgb_push(msg, sizeof(*hh)); |
| 501 | hh->len = htons(msg->len - sizeof(*hh)); |
| 502 | hh->proto = proto; |
| 503 | } |
| 504 | |
| 505 | static int ts_want_write(struct e1inp_ts *e1i_ts) |
| 506 | { |
| 507 | e1i_ts->driver.ipaccess.fd.when |= BSC_FD_WRITE; |
| 508 | |
| 509 | return 0; |
| 510 | } |
| 511 | |
Pablo Neira Ayuso | add3ec8 | 2011-07-05 14:45:46 +0200 | [diff] [blame] | 512 | static void ipaccess_close(struct e1inp_sign_link *sign_link) |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 513 | { |
Pablo Neira Ayuso | add3ec8 | 2011-07-05 14:45:46 +0200 | [diff] [blame] | 514 | struct e1inp_ts *e1i_ts = sign_link->ts; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 515 | struct osmo_fd *bfd = &e1i_ts->driver.ipaccess.fd; |
Holger Hans Peter Freyther | 55467f0 | 2011-12-28 19:47:07 +0100 | [diff] [blame] | 516 | return e1inp_close_socket(e1i_ts, sign_link, bfd); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 517 | } |
| 518 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 519 | static void timeout_ts1_write(void *data) |
| 520 | { |
| 521 | struct e1inp_ts *e1i_ts = (struct e1inp_ts *)data; |
| 522 | |
| 523 | /* trigger write of ts1, due to tx delay timer */ |
| 524 | ts_want_write(e1i_ts); |
| 525 | } |
| 526 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 527 | static int __handle_ts1_write(struct osmo_fd *bfd, struct e1inp_line *line) |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 528 | { |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 529 | unsigned int ts_nr = bfd->priv_nr; |
| 530 | struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1]; |
| 531 | struct e1inp_sign_link *sign_link; |
| 532 | struct msgb *msg; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 533 | int ret; |
| 534 | |
| 535 | bfd->when &= ~BSC_FD_WRITE; |
| 536 | |
| 537 | /* get the next msg for this timeslot */ |
| 538 | msg = e1inp_tx_ts(e1i_ts, &sign_link); |
| 539 | if (!msg) { |
| 540 | /* no message after tx delay timer */ |
| 541 | return 0; |
| 542 | } |
| 543 | |
| 544 | switch (sign_link->type) { |
| 545 | case E1INP_SIGN_OML: |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 546 | break; |
| 547 | case E1INP_SIGN_RSL: |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 548 | break; |
| 549 | default: |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 550 | bfd->when |= BSC_FD_WRITE; /* come back for more msg */ |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 551 | ret = -EINVAL; |
| 552 | goto out; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | msg->l2h = msg->data; |
Pablo Neira Ayuso | b9ed7e3 | 2011-07-05 18:31:59 +0200 | [diff] [blame] | 556 | ipaccess_prepend_header(msg, sign_link->tei); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 557 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 558 | DEBUGP(DLMI, "TX %u: %s\n", ts_nr, osmo_hexdump(msg->l2h, msgb_l2len(msg))); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 559 | |
| 560 | ret = send(bfd->fd, msg->data, msg->len, 0); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 561 | if (ret != msg->len) { |
| 562 | LOGP(DLINP, LOGL_ERROR, "failed to send A-bis IPA signalling " |
| 563 | "message. Reason: %s\n", strerror(errno)); |
| 564 | goto err; |
| 565 | } |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 566 | |
| 567 | /* set tx delay timer for next event */ |
| 568 | e1i_ts->sign.tx_timer.cb = timeout_ts1_write; |
| 569 | e1i_ts->sign.tx_timer.data = e1i_ts; |
| 570 | |
| 571 | /* Reducing this might break the nanoBTS 900 init. */ |
| 572 | osmo_timer_schedule(&e1i_ts->sign.tx_timer, 0, e1i_ts->sign.delay); |
| 573 | |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 574 | out: |
| 575 | msgb_free(msg); |
| 576 | return ret; |
| 577 | err: |
Harald Welte | 10b4130 | 2013-06-30 14:05:49 +0200 | [diff] [blame] | 578 | ipaccess_drop(bfd, line); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 579 | msgb_free(msg); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 580 | return ret; |
| 581 | } |
| 582 | |
Pablo Neira Ayuso | 88136fc | 2011-07-08 16:21:55 +0200 | [diff] [blame] | 583 | static int handle_ts1_write(struct osmo_fd *bfd) |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 584 | { |
| 585 | struct e1inp_line *line = bfd->data; |
| 586 | |
| 587 | return __handle_ts1_write(bfd, line); |
| 588 | } |
| 589 | |
Pablo Neira Ayuso | f099567 | 2011-09-08 12:58:38 +0200 | [diff] [blame] | 590 | static int ipaccess_bts_write_cb(struct ipa_client_conn *link) |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 591 | { |
| 592 | struct e1inp_line *line = link->line; |
| 593 | |
| 594 | return __handle_ts1_write(link->ofd, line); |
| 595 | } |
| 596 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 597 | /* callback from select.c in case one of the fd's can be read/written */ |
Pablo Neira Ayuso | 495ddb6 | 2011-07-08 21:04:11 +0200 | [diff] [blame] | 598 | int ipaccess_fd_cb(struct osmo_fd *bfd, unsigned int what) |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 599 | { |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 600 | int rc = 0; |
| 601 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 602 | if (what & BSC_FD_READ) |
| 603 | rc = handle_ts1_read(bfd); |
| 604 | if (what & BSC_FD_WRITE) |
| 605 | rc = handle_ts1_write(bfd); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 606 | |
| 607 | return rc; |
| 608 | } |
| 609 | |
Pablo Neira Ayuso | 4e862cb | 2011-08-19 18:43:38 +0200 | [diff] [blame] | 610 | static int ipaccess_line_update(struct e1inp_line *line); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 611 | |
| 612 | struct e1inp_driver ipaccess_driver = { |
| 613 | .name = "ipa", |
| 614 | .want_write = ts_want_write, |
| 615 | .line_update = ipaccess_line_update, |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 616 | .close = ipaccess_close, |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 617 | .default_delay = 0, |
Jacob Erlbeck | 8fe1571 | 2014-01-09 14:30:58 +0100 | [diff] [blame] | 618 | .has_keepalive = 1, |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 619 | }; |
| 620 | |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 621 | static void update_fd_settings(struct e1inp_line *line, int fd) |
| 622 | { |
| 623 | int ret; |
| 624 | int val; |
| 625 | |
Jacob Erlbeck | 8fe1571 | 2014-01-09 14:30:58 +0100 | [diff] [blame] | 626 | if (line->keepalive_num_probes) { |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 627 | /* Enable TCP keepalive to find out if the connection is gone */ |
| 628 | val = 1; |
| 629 | ret = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val)); |
| 630 | if (ret < 0) |
| 631 | LOGP(DLINP, LOGL_NOTICE, "Failed to set keepalive: %s\n", |
| 632 | strerror(errno)); |
| 633 | else |
| 634 | LOGP(DLINP, LOGL_NOTICE, "Keepalive is set: %i\n", ret); |
| 635 | |
| 636 | #if defined(TCP_KEEPIDLE) && defined(TCP_KEEPINTVL) && defined(TCP_KEEPCNT) |
| 637 | /* The following options are not portable! */ |
Jacob Erlbeck | 8fe1571 | 2014-01-09 14:30:58 +0100 | [diff] [blame] | 638 | val = line->keepalive_idle_timeout > 0 ? |
| 639 | line->keepalive_idle_timeout : |
| 640 | DEFAULT_TCP_KEEPALIVE_IDLE_TIMEOUT; |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 641 | ret = setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, |
| 642 | &val, sizeof(val)); |
| 643 | if (ret < 0) |
| 644 | LOGP(DLINP, LOGL_NOTICE, |
| 645 | "Failed to set keepalive idle time: %s\n", |
| 646 | strerror(errno)); |
Jacob Erlbeck | 8fe1571 | 2014-01-09 14:30:58 +0100 | [diff] [blame] | 647 | val = line->keepalive_probe_interval > -1 ? |
| 648 | line->keepalive_probe_interval : |
| 649 | DEFAULT_TCP_KEEPALIVE_INTERVAL; |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 650 | ret = setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, |
| 651 | &val, sizeof(val)); |
| 652 | if (ret < 0) |
| 653 | LOGP(DLINP, LOGL_NOTICE, |
| 654 | "Failed to set keepalive interval: %s\n", |
| 655 | strerror(errno)); |
Jacob Erlbeck | 8fe1571 | 2014-01-09 14:30:58 +0100 | [diff] [blame] | 656 | val = line->keepalive_num_probes > 0 ? |
| 657 | line->keepalive_num_probes : |
| 658 | DEFAULT_TCP_KEEPALIVE_RETRY_COUNT; |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 659 | ret = setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, |
| 660 | &val, sizeof(val)); |
| 661 | if (ret < 0) |
| 662 | LOGP(DLINP, LOGL_NOTICE, |
| 663 | "Failed to set keepalive count: %s\n", |
| 664 | strerror(errno)); |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 665 | #endif |
Holger Hans Peter Freyther | f465a4c | 2014-02-03 09:34:02 +0100 | [diff] [blame] | 666 | } |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 667 | } |
| 668 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 669 | /* callback of the OML listening filedescriptor */ |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 670 | static int ipaccess_bsc_oml_cb(struct ipa_server_link *link, int fd) |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 671 | { |
| 672 | int ret; |
| 673 | int idx = 0; |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 674 | int i; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 675 | struct e1inp_line *line; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 676 | struct e1inp_ts *e1i_ts; |
| 677 | struct osmo_fd *bfd; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 678 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 679 | /* clone virtual E1 line for this new OML link. */ |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 680 | line = e1inp_line_clone(tall_ipa_ctx, link->line); |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 681 | if (line == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 682 | LOGP(DLINP, LOGL_ERROR, "could not clone E1 line\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 683 | return -ENOMEM; |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 684 | } |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 685 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 686 | /* create virrtual E1 timeslots for signalling */ |
Pablo Neira Ayuso | 5930185 | 2011-06-27 15:44:23 +0200 | [diff] [blame] | 687 | e1inp_ts_config_sign(&line->ts[E1INP_SIGN_OML-1], line); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 688 | |
| 689 | /* initialize the fds */ |
| 690 | for (i = 0; i < ARRAY_SIZE(line->ts); ++i) |
| 691 | line->ts[i].driver.ipaccess.fd.fd = -1; |
| 692 | |
| 693 | e1i_ts = &line->ts[idx]; |
| 694 | |
Pablo Neira Ayuso | 93c6201 | 2011-06-26 19:12:47 +0200 | [diff] [blame] | 695 | bfd = &e1i_ts->driver.ipaccess.fd; |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 696 | bfd->fd = fd; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 697 | bfd->data = line; |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 698 | bfd->priv_nr = E1INP_SIGN_OML; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 699 | bfd->cb = ipaccess_fd_cb; |
| 700 | bfd->when = BSC_FD_READ; |
| 701 | ret = osmo_fd_register(bfd); |
| 702 | if (ret < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 703 | LOGP(DLINP, LOGL_ERROR, "could not register FD\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 704 | goto err_line; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 705 | } |
| 706 | |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 707 | update_fd_settings(line, bfd->fd); |
Daniel Willmann | 8598072 | 2014-01-09 14:30:55 +0100 | [diff] [blame] | 708 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 709 | /* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */ |
| 710 | ret = ipaccess_send_id_req(bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 711 | if (ret < 0) { |
| 712 | LOGP(DLINP, LOGL_ERROR, "could not send ID REQ. Reason: %s\n", |
| 713 | strerror(errno)); |
| 714 | goto err_socket; |
| 715 | } |
| 716 | return ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 717 | |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 718 | err_socket: |
| 719 | osmo_fd_unregister(bfd); |
| 720 | err_line: |
| 721 | close(bfd->fd); |
| 722 | bfd->fd = -1; |
| 723 | e1inp_line_put(line); |
| 724 | return ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 725 | } |
| 726 | |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 727 | static int ipaccess_bsc_rsl_cb(struct ipa_server_link *link, int fd) |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 728 | { |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 729 | struct e1inp_line *line; |
| 730 | struct e1inp_ts *e1i_ts; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 731 | struct osmo_fd *bfd; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 732 | int i, ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 733 | |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 734 | /* We don't know yet which OML link to associate it with. Thus, we |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 735 | * allocate a temporary E1 line until we have received ID. */ |
| 736 | line = e1inp_line_clone(tall_ipa_ctx, link->line); |
| 737 | if (line == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 738 | LOGP(DLINP, LOGL_ERROR, "could not clone E1 line\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 739 | return -ENOMEM; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 740 | } |
| 741 | /* initialize the fds */ |
| 742 | for (i = 0; i < ARRAY_SIZE(line->ts); ++i) |
| 743 | line->ts[i].driver.ipaccess.fd.fd = -1; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 744 | |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 745 | /* we need this to initialize this in case to avoid crashes in case |
| 746 | * that the socket is closed before we've seen an ID_RESP. */ |
| 747 | e1inp_ts_config_sign(&line->ts[E1INP_SIGN_OML-1], line); |
| 748 | |
| 749 | e1i_ts = &line->ts[E1INP_SIGN_RSL-1]; |
| 750 | |
| 751 | bfd = &e1i_ts->driver.ipaccess.fd; |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 752 | bfd->fd = fd; |
Pablo Neira Ayuso | 3832c4f | 2011-07-07 17:47:26 +0200 | [diff] [blame] | 753 | bfd->data = line; |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 754 | bfd->priv_nr = E1INP_SIGN_RSL; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 755 | bfd->cb = ipaccess_fd_cb; |
| 756 | bfd->when = BSC_FD_READ; |
| 757 | ret = osmo_fd_register(bfd); |
| 758 | if (ret < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 759 | LOGP(DLINP, LOGL_ERROR, "could not register FD\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 760 | goto err_line; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 761 | } |
| 762 | /* Request ID. FIXME: request LOCATION, HW/SW VErsion, Unit Name, Serno */ |
| 763 | ret = ipaccess_send_id_req(bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 764 | if (ret < 0) { |
| 765 | LOGP(DLINP, LOGL_ERROR, "could not send ID REQ. Reason: %s\n", |
| 766 | strerror(errno)); |
| 767 | goto err_socket; |
| 768 | } |
Jacob Erlbeck | a4ec51e | 2014-01-09 14:30:56 +0100 | [diff] [blame] | 769 | update_fd_settings(line, bfd->fd); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 770 | return ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 771 | |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 772 | err_socket: |
| 773 | osmo_fd_unregister(bfd); |
| 774 | err_line: |
| 775 | close(bfd->fd); |
| 776 | bfd->fd = -1; |
| 777 | e1inp_line_put(line); |
| 778 | return ret; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 779 | } |
| 780 | |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 781 | #define IPA_STRING_MAX 64 |
| 782 | |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 783 | static struct msgb * |
| 784 | ipa_bts_id_resp(struct ipaccess_unit *dev, uint8_t *data, int len) |
| 785 | { |
| 786 | struct msgb *nmsg; |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 787 | char str[IPA_STRING_MAX]; |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 788 | uint8_t *tag; |
| 789 | |
Pablo Neira Ayuso | 88136fc | 2011-07-08 16:21:55 +0200 | [diff] [blame] | 790 | nmsg = ipa_msg_alloc(0); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 791 | if (!nmsg) |
| 792 | return NULL; |
| 793 | |
| 794 | *msgb_put(nmsg, 1) = IPAC_MSGT_ID_RESP; |
| 795 | while (len) { |
| 796 | if (len < 2) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 797 | LOGP(DLINP, LOGL_NOTICE, |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 798 | "Short read of ipaccess tag\n"); |
| 799 | msgb_free(nmsg); |
| 800 | return NULL; |
| 801 | } |
| 802 | switch (data[1]) { |
| 803 | case IPAC_IDTAG_UNIT: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 804 | snprintf(str, sizeof(str), "%u/%u/%u", |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 805 | dev->site_id, dev->bts_id, dev->trx_id); |
| 806 | break; |
| 807 | case IPAC_IDTAG_MACADDR: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 808 | snprintf(str, sizeof(str), |
| 809 | "%02x:%02x:%02x:%02x:%02x:%02x", |
| 810 | dev->mac_addr[0], dev->mac_addr[1], |
| 811 | dev->mac_addr[2], dev->mac_addr[3], |
| 812 | dev->mac_addr[4], dev->mac_addr[5]); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 813 | break; |
| 814 | case IPAC_IDTAG_LOCATION1: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 815 | strncpy(str, dev->location1, IPA_STRING_MAX); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 816 | break; |
| 817 | case IPAC_IDTAG_LOCATION2: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 818 | strncpy(str, dev->location2, IPA_STRING_MAX); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 819 | break; |
| 820 | case IPAC_IDTAG_EQUIPVERS: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 821 | strncpy(str, dev->equipvers, IPA_STRING_MAX); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 822 | break; |
| 823 | case IPAC_IDTAG_SWVERSION: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 824 | strncpy(str, dev->swversion, IPA_STRING_MAX); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 825 | break; |
| 826 | case IPAC_IDTAG_UNITNAME: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 827 | snprintf(str, sizeof(str), |
| 828 | "%s-%02x-%02x-%02x-%02x-%02x-%02x", |
| 829 | dev->unit_name, |
| 830 | dev->mac_addr[0], dev->mac_addr[1], |
| 831 | dev->mac_addr[2], dev->mac_addr[3], |
| 832 | dev->mac_addr[4], dev->mac_addr[5]); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 833 | break; |
| 834 | case IPAC_IDTAG_SERNR: |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 835 | strncpy(str, dev->serno, IPA_STRING_MAX); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 836 | break; |
| 837 | default: |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 838 | LOGP(DLINP, LOGL_NOTICE, |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 839 | "Unknown ipaccess tag 0x%02x\n", *data); |
| 840 | msgb_free(nmsg); |
| 841 | return NULL; |
| 842 | } |
Pablo Neira Ayuso | 4bab3bf | 2013-07-05 15:00:13 +0200 | [diff] [blame] | 843 | str[IPA_STRING_MAX-1] = '\0'; |
| 844 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 845 | LOGP(DLINP, LOGL_INFO, " tag %d: %s\n", data[1], str); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 846 | tag = msgb_put(nmsg, 3 + strlen(str) + 1); |
| 847 | tag[0] = 0x00; |
| 848 | tag[1] = 1 + strlen(str) + 1; |
| 849 | tag[2] = data[1]; |
| 850 | memcpy(tag + 3, str, strlen(str) + 1); |
| 851 | data += 2; |
| 852 | len -= 2; |
| 853 | } |
Pablo Neira Ayuso | 88136fc | 2011-07-08 16:21:55 +0200 | [diff] [blame] | 854 | ipa_msg_push_header(nmsg, IPAC_PROTO_IPACCESS); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 855 | return nmsg; |
| 856 | } |
| 857 | |
| 858 | static struct msgb *ipa_bts_id_ack(void) |
| 859 | { |
| 860 | struct msgb *nmsg2; |
| 861 | |
Pablo Neira Ayuso | 88136fc | 2011-07-08 16:21:55 +0200 | [diff] [blame] | 862 | nmsg2 = ipa_msg_alloc(0); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 863 | if (!nmsg2) |
| 864 | return NULL; |
| 865 | |
| 866 | *msgb_put(nmsg2, 1) = IPAC_MSGT_ID_ACK; |
Pablo Neira Ayuso | 88136fc | 2011-07-08 16:21:55 +0200 | [diff] [blame] | 867 | ipa_msg_push_header(nmsg2, IPAC_PROTO_IPACCESS); |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 868 | |
| 869 | return nmsg2; |
| 870 | } |
| 871 | |
Harald Welte | 51de9ca | 2013-06-30 20:13:16 +0200 | [diff] [blame] | 872 | static void ipaccess_bts_updown_cb(struct ipa_client_conn *link, int up) |
| 873 | { |
| 874 | struct e1inp_line *line = link->line; |
| 875 | |
| 876 | if (up) |
| 877 | return; |
| 878 | |
| 879 | if (line->ops->sign_link_down) |
| 880 | line->ops->sign_link_down(line); |
| 881 | } |
| 882 | |
Harald Welte | a3e9dd5 | 2013-06-30 14:25:07 +0200 | [diff] [blame] | 883 | static int ipaccess_bts_read_cb(struct ipa_client_conn *link, struct msgb *msg) |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 884 | { |
| 885 | struct ipaccess_head *hh = (struct ipaccess_head *) msg->data; |
| 886 | struct e1inp_ts *e1i_ts = NULL; |
| 887 | struct e1inp_sign_link *sign_link; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 888 | struct msgb *rmsg; |
| 889 | int ret = 0; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 890 | |
| 891 | /* special handling for IPA CCM. */ |
| 892 | if (hh->proto == IPAC_PROTO_IPACCESS) { |
| 893 | uint8_t msg_type = *(msg->l2h); |
| 894 | |
| 895 | /* ping, pong and acknowledgment cases. */ |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 896 | ret = ipaccess_rcvmsg_bts_base(msg, link->ofd); |
| 897 | if (ret < 0) |
| 898 | goto err; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 899 | |
| 900 | /* this is a request for identification from the BSC. */ |
| 901 | if (msg_type == IPAC_MSGT_ID_GET) { |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 902 | struct e1inp_sign_link *sign_link; |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 903 | uint8_t *data = msgb_l2(msg); |
| 904 | int len = msgb_l2len(msg); |
| 905 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 906 | LOGP(DLINP, LOGL_NOTICE, "received ID get\n"); |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 907 | if (!link->line->ops->sign_link_up) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 908 | LOGP(DLINP, LOGL_ERROR, |
Pablo Neira Ayuso | cd8d2e5 | 2011-07-02 17:05:21 +0200 | [diff] [blame] | 909 | "Unable to set signal link, " |
| 910 | "closing socket.\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 911 | ret = -EINVAL; |
| 912 | goto err; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 913 | } |
Pablo Neira Ayuso | 4e862cb | 2011-08-19 18:43:38 +0200 | [diff] [blame] | 914 | rmsg = ipa_bts_id_resp(link->line->ops->cfg.ipa.dev, |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 915 | data + 1, len - 1); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 916 | ret = ipaccess_send(link->ofd->fd, rmsg->data, |
| 917 | rmsg->len); |
| 918 | if (ret != rmsg->len) { |
| 919 | LOGP(DLINP, LOGL_ERROR, "cannot send ID_RESP " |
| 920 | "message. Reason: %s\n", strerror(errno)); |
| 921 | goto err_rmsg; |
| 922 | } |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 923 | msgb_free(rmsg); |
| 924 | |
| 925 | /* send ID_ACK. */ |
| 926 | rmsg = ipa_bts_id_ack(); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 927 | ret = ipaccess_send(link->ofd->fd, rmsg->data, |
| 928 | rmsg->len); |
| 929 | if (ret != rmsg->len) { |
| 930 | LOGP(DLINP, LOGL_ERROR, "cannot send ID_ACK " |
| 931 | "message. Reason: %s\n", strerror(errno)); |
| 932 | goto err_rmsg; |
| 933 | } |
Pablo Neira Ayuso | dfafe68 | 2011-07-02 14:32:32 +0200 | [diff] [blame] | 934 | msgb_free(rmsg); |
Harald Welte | 6eddd47 | 2013-06-30 20:18:53 +0200 | [diff] [blame] | 935 | |
| 936 | sign_link = link->line->ops->sign_link_up(msg, |
| 937 | link->line, |
| 938 | link->ofd->priv_nr); |
| 939 | if (sign_link == NULL) { |
| 940 | LOGP(DLINP, LOGL_ERROR, |
| 941 | "Unable to set signal link, " |
| 942 | "closing socket.\n"); |
| 943 | ret = -EINVAL; |
| 944 | goto err; |
| 945 | } |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 946 | } |
Pablo Neira Ayuso | 84e5cb9 | 2012-08-23 23:41:54 +0200 | [diff] [blame] | 947 | msgb_free(msg); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 948 | return ret; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 949 | } else if (link->port == IPA_TCP_PORT_OML) |
| 950 | e1i_ts = &link->line->ts[0]; |
| 951 | else if (link->port == IPA_TCP_PORT_RSL) |
| 952 | e1i_ts = &link->line->ts[1]; |
| 953 | |
Pablo Neira Ayuso | b948701 | 2013-07-05 14:38:43 +0200 | [diff] [blame] | 954 | OSMO_ASSERT(e1i_ts != NULL); |
| 955 | |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 956 | /* look up for some existing signaling link. */ |
| 957 | sign_link = e1inp_lookup_sign_link(e1i_ts, hh->proto, 0); |
| 958 | if (sign_link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 959 | LOGP(DLINP, LOGL_ERROR, "no matching signalling link for " |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 960 | "hh->proto=0x%02x\n", hh->proto); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 961 | ret = -EIO; |
| 962 | goto err; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 963 | } |
| 964 | msg->dst = sign_link; |
| 965 | |
| 966 | /* XXX better use e1inp_ts_rx? */ |
Pablo Neira Ayuso | f163d23 | 2011-06-25 18:42:55 +0200 | [diff] [blame] | 967 | if (!link->line->ops->sign_link) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 968 | LOGP(DLINP, LOGL_ERROR, "Fix your application, " |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 969 | "no action set for signalling messages.\n"); |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 970 | ret = -ENOENT; |
| 971 | goto err; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 972 | } |
Pablo Neira Ayuso | dbd82fb | 2011-07-05 15:29:23 +0200 | [diff] [blame] | 973 | link->line->ops->sign_link(msg); |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 974 | return 0; |
Pablo Neira Ayuso | 1e40194 | 2012-08-22 14:16:24 +0200 | [diff] [blame] | 975 | |
| 976 | err_rmsg: |
| 977 | msgb_free(rmsg); |
| 978 | err: |
| 979 | osmo_fd_unregister(link->ofd); |
| 980 | close(link->ofd->fd); |
| 981 | link->ofd->fd = -1; |
| 982 | msgb_free(msg); |
| 983 | return ret; |
Pablo Neira Ayuso | 591ddad | 2011-06-21 18:16:42 +0200 | [diff] [blame] | 984 | } |
| 985 | |
Pablo Neira Ayuso | d621640 | 2011-08-31 16:47:44 +0200 | [diff] [blame] | 986 | struct ipaccess_line { |
| 987 | int line_already_initialized; |
| 988 | }; |
| 989 | |
Pablo Neira Ayuso | 4e862cb | 2011-08-19 18:43:38 +0200 | [diff] [blame] | 990 | static int ipaccess_line_update(struct e1inp_line *line) |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 991 | { |
| 992 | int ret = -ENOENT; |
Pablo Neira Ayuso | d621640 | 2011-08-31 16:47:44 +0200 | [diff] [blame] | 993 | struct ipaccess_line *il; |
| 994 | |
| 995 | if (!line->driver_data) |
| 996 | line->driver_data = talloc_zero(line, struct ipaccess_line); |
| 997 | |
| 998 | if (!line->driver_data) { |
| 999 | LOGP(DLINP, LOGL_ERROR, "ipaccess: OOM in line update\n"); |
| 1000 | return -ENOMEM; |
| 1001 | } |
| 1002 | il = line->driver_data; |
| 1003 | |
| 1004 | /* We only initialize this line once. */ |
| 1005 | if (il->line_already_initialized) |
| 1006 | return 0; |
| 1007 | |
| 1008 | il->line_already_initialized = 1; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1009 | |
Pablo Neira Ayuso | 4e862cb | 2011-08-19 18:43:38 +0200 | [diff] [blame] | 1010 | switch(line->ops->cfg.ipa.role) { |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1011 | case E1INP_LINE_R_BSC: { |
| 1012 | struct ipa_server_link *oml_link, *rsl_link; |
| 1013 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1014 | LOGP(DLINP, LOGL_NOTICE, "enabling ipaccess BSC mode\n"); |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1015 | |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1016 | oml_link = ipa_server_link_create(tall_ipa_ctx, line, |
| 1017 | "0.0.0.0", IPA_TCP_PORT_OML, |
Pablo Neira Ayuso | e009f4a | 2011-06-23 13:36:34 +0200 | [diff] [blame] | 1018 | ipaccess_bsc_oml_cb, NULL); |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1019 | if (oml_link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1020 | LOGP(DLINP, LOGL_ERROR, "cannot create OML " |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1021 | "BSC link: %s\n", strerror(errno)); |
| 1022 | return -ENOMEM; |
Pablo Neira Ayuso | f67471f | 2011-06-07 11:25:49 +0200 | [diff] [blame] | 1023 | } |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1024 | if (ipa_server_link_open(oml_link) < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1025 | LOGP(DLINP, LOGL_ERROR, "cannot open OML BSC link: %s\n", |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1026 | strerror(errno)); |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1027 | ipa_server_link_destroy(oml_link); |
| 1028 | return -EIO; |
Pablo Neira Ayuso | f67471f | 2011-06-07 11:25:49 +0200 | [diff] [blame] | 1029 | } |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1030 | rsl_link = ipa_server_link_create(tall_ipa_ctx, line, |
| 1031 | "0.0.0.0", IPA_TCP_PORT_RSL, |
Pablo Neira Ayuso | e009f4a | 2011-06-23 13:36:34 +0200 | [diff] [blame] | 1032 | ipaccess_bsc_rsl_cb, NULL); |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1033 | if (rsl_link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1034 | LOGP(DLINP, LOGL_ERROR, "cannot create RSL " |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1035 | "BSC link: %s\n", strerror(errno)); |
| 1036 | return -ENOMEM; |
| 1037 | } |
| 1038 | if (ipa_server_link_open(rsl_link) < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1039 | LOGP(DLINP, LOGL_ERROR, "cannot open RSL BSC link: %s\n", |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1040 | strerror(errno)); |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1041 | ipa_server_link_destroy(rsl_link); |
| 1042 | return -EIO; |
| 1043 | } |
| 1044 | ret = 0; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1045 | break; |
Pablo Neira Ayuso | 986191f | 2011-06-21 19:56:26 +0200 | [diff] [blame] | 1046 | } |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1047 | case E1INP_LINE_R_BTS: { |
Harald Welte | 84f67b2 | 2013-06-30 13:13:59 +0200 | [diff] [blame] | 1048 | struct ipa_client_conn *link; |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1049 | |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1050 | LOGP(DLINP, LOGL_NOTICE, "enabling ipaccess BTS mode\n"); |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1051 | |
Pablo Neira Ayuso | f099567 | 2011-09-08 12:58:38 +0200 | [diff] [blame] | 1052 | link = ipa_client_conn_create(tall_ipa_ctx, |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 1053 | &line->ts[E1INP_SIGN_OML-1], |
Pablo Neira Ayuso | 00af772 | 2011-09-08 12:47:06 +0200 | [diff] [blame] | 1054 | E1INP_SIGN_OML, |
Pablo Neira Ayuso | 4e862cb | 2011-08-19 18:43:38 +0200 | [diff] [blame] | 1055 | line->ops->cfg.ipa.addr, |
| 1056 | IPA_TCP_PORT_OML, |
Harald Welte | 51de9ca | 2013-06-30 20:13:16 +0200 | [diff] [blame] | 1057 | ipaccess_bts_updown_cb, |
Harald Welte | a3e9dd5 | 2013-06-30 14:25:07 +0200 | [diff] [blame] | 1058 | ipaccess_bts_read_cb, |
Pablo Neira Ayuso | c9c4fd3 | 2011-06-30 12:19:42 +0200 | [diff] [blame] | 1059 | ipaccess_bts_write_cb, |
Harald Welte | 10b4130 | 2013-06-30 14:05:49 +0200 | [diff] [blame] | 1060 | line); |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1061 | if (link == NULL) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1062 | LOGP(DLINP, LOGL_ERROR, "cannot create OML " |
Pablo Neira Ayuso | 29465d3 | 2011-06-21 14:21:33 +0200 | [diff] [blame] | 1063 | "BTS link: %s\n", strerror(errno)); |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1064 | return -ENOMEM; |
| 1065 | } |
Pablo Neira Ayuso | f099567 | 2011-09-08 12:58:38 +0200 | [diff] [blame] | 1066 | if (ipa_client_conn_open(link) < 0) { |
Harald Welte | cc2241b | 2011-07-19 16:06:06 +0200 | [diff] [blame] | 1067 | LOGP(DLINP, LOGL_ERROR, "cannot open OML BTS link: %s\n", |
Pablo Neira Ayuso | 29465d3 | 2011-06-21 14:21:33 +0200 | [diff] [blame] | 1068 | strerror(errno)); |
Pablo Neira Ayuso | f099567 | 2011-09-08 12:58:38 +0200 | [diff] [blame] | 1069 | ipa_client_conn_close(link); |
| 1070 | ipa_client_conn_destroy(link); |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1071 | return -EIO; |
| 1072 | } |
| 1073 | ret = 0; |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1074 | break; |
Pablo Neira Ayuso | 96e8128 | 2011-06-09 15:06:11 +0200 | [diff] [blame] | 1075 | } |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1076 | default: |
| 1077 | break; |
| 1078 | } |
| 1079 | return ret; |
| 1080 | } |
| 1081 | |
Harald Welte | 84f67b2 | 2013-06-30 13:13:59 +0200 | [diff] [blame] | 1082 | int e1inp_ipa_bts_rsl_connect(struct e1inp_line *line, |
| 1083 | const char *rem_addr, uint16_t rem_port) |
| 1084 | { |
| 1085 | struct ipa_client_conn *rsl_link; |
| 1086 | |
| 1087 | rsl_link = ipa_client_conn_create(tall_ipa_ctx, |
| 1088 | &line->ts[E1INP_SIGN_RSL-1], |
| 1089 | E1INP_SIGN_RSL, |
| 1090 | rem_addr, rem_port, |
Harald Welte | 51de9ca | 2013-06-30 20:13:16 +0200 | [diff] [blame] | 1091 | ipaccess_bts_updown_cb, |
Harald Welte | a3e9dd5 | 2013-06-30 14:25:07 +0200 | [diff] [blame] | 1092 | ipaccess_bts_read_cb, |
Harald Welte | 84f67b2 | 2013-06-30 13:13:59 +0200 | [diff] [blame] | 1093 | ipaccess_bts_write_cb, |
Harald Welte | 10b4130 | 2013-06-30 14:05:49 +0200 | [diff] [blame] | 1094 | line); |
Harald Welte | 84f67b2 | 2013-06-30 13:13:59 +0200 | [diff] [blame] | 1095 | if (rsl_link == NULL) { |
| 1096 | LOGP(DLINP, LOGL_ERROR, "cannot create RSL " |
| 1097 | "BTS link: %s\n", strerror(errno)); |
| 1098 | return -ENOMEM; |
| 1099 | } |
| 1100 | if (ipa_client_conn_open(rsl_link) < 0) { |
| 1101 | LOGP(DLINP, LOGL_ERROR, "cannot open RSL BTS link: %s\n", |
| 1102 | strerror(errno)); |
| 1103 | ipa_client_conn_close(rsl_link); |
| 1104 | ipa_client_conn_destroy(rsl_link); |
| 1105 | return -EIO; |
| 1106 | } |
| 1107 | return 0; |
| 1108 | } |
| 1109 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1110 | void e1inp_ipaccess_init(void) |
| 1111 | { |
Pablo Neira Ayuso | 54b4979 | 2011-06-07 12:15:26 +0200 | [diff] [blame] | 1112 | tall_ipa_ctx = talloc_named_const(libosmo_abis_ctx, 1, "ipa"); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1113 | e1inp_driver_register(&ipaccess_driver); |
| 1114 | } |