Harald Welte | 77847ad | 2015-10-06 22:07:04 +0200 | [diff] [blame] | 1 | /* main application for hnb-gw part of osmo-iuh */ |
| 2 | |
| 3 | /* (C) 2015 by Harald Welte <laforge@gnumonks.org> |
Neels Hofmeyr | 4d8eb4c | 2016-08-18 01:03:44 +0200 | [diff] [blame] | 4 | * (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
Harald Welte | 77847ad | 2015-10-06 22:07:04 +0200 | [diff] [blame] | 5 | * All Rights Reserved |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU Affero General Public License as published by |
| 9 | * the Free Software Foundation; either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU Affero General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Affero General Public License |
| 18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | */ |
| 21 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 22 | #include <unistd.h> |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | #include <getopt.h> |
| 27 | #include <errno.h> |
| 28 | #include <signal.h> |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 29 | #include <stdbool.h> |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 30 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 31 | #include <sys/types.h> |
| 32 | #include <sys/socket.h> |
Harald Welte | 1d2c39d | 2015-09-11 17:49:37 +0200 | [diff] [blame] | 33 | #include <netinet/in.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 34 | #include <netinet/sctp.h> |
Harald Welte | 1d2c39d | 2015-09-11 17:49:37 +0200 | [diff] [blame] | 35 | #include <arpa/inet.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 36 | |
| 37 | #include <osmocom/core/application.h> |
| 38 | #include <osmocom/core/talloc.h> |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 39 | #include <osmocom/core/select.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 40 | #include <osmocom/core/logging.h> |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 41 | #include <osmocom/core/socket.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 42 | #include <osmocom/core/msgb.h> |
Harald Welte | 3f71256 | 2015-09-07 21:53:25 +0200 | [diff] [blame] | 43 | #include <osmocom/core/write_queue.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 44 | |
| 45 | #include <osmocom/vty/telnet_interface.h> |
| 46 | #include <osmocom/vty/logging.h> |
Harald Welte | da86fe5 | 2017-11-21 08:14:37 +0100 | [diff] [blame] | 47 | #include <osmocom/vty/command.h> |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 48 | |
Harald Welte | ffa7c0a | 2015-12-23 00:03:41 +0100 | [diff] [blame] | 49 | #include <osmocom/netif/stream.h> |
| 50 | |
Harald Welte | da86fe5 | 2017-11-21 08:14:37 +0100 | [diff] [blame] | 51 | #include <osmocom/ranap/ranap_common.h> |
| 52 | |
Neels Hofmeyr | 0f88c11 | 2017-07-03 16:49:43 +0200 | [diff] [blame] | 53 | #include <osmocom/sigtran/protocol/m3ua.h> |
Harald Welte | 75a4e65 | 2015-12-22 23:59:24 +0100 | [diff] [blame] | 54 | #include <osmocom/sigtran/sccp_sap.h> |
| 55 | |
Neels Hofmeyr | df63de2 | 2016-08-18 13:13:55 +0200 | [diff] [blame] | 56 | #include <osmocom/iuh/hnbgw.h> |
| 57 | #include <osmocom/iuh/hnbgw_hnbap.h> |
| 58 | #include <osmocom/iuh/hnbgw_rua.h> |
| 59 | #include <osmocom/iuh/hnbgw_cn.h> |
| 60 | #include <osmocom/iuh/context_map.h> |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 61 | |
Neels Hofmeyr | 4c45d2b | 2016-08-18 02:10:57 +0200 | [diff] [blame] | 62 | static const char * const osmo_hnbgw_copyright = |
| 63 | "OsmoHNBGW - Osmocom Home Node B Gateway implementation\r\n" |
| 64 | "Copyright (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>\r\n" |
| 65 | "Contributions by Daniel Willmann, Harald Welte, Neels Hofmeyr\r\n" |
| 66 | "License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n" |
| 67 | "This is free software: you are free to change and redistribute it.\r\n" |
| 68 | "There is NO WARRANTY, to the extent permitted by law.\r\n"; |
| 69 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 70 | static void *tall_hnb_ctx; |
Harald Welte | 08de638 | 2015-08-31 09:54:45 +0200 | [diff] [blame] | 71 | void *talloc_asn1_ctx; |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 72 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 73 | static struct hnb_gw *g_hnb_gw; |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 74 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 75 | static struct hnb_gw *hnb_gw_create(void *ctx) |
| 76 | { |
| 77 | struct hnb_gw *gw = talloc_zero(ctx, struct hnb_gw); |
| 78 | |
Neels Hofmeyr | 6e3e594 | 2016-10-27 13:13:50 +0200 | [diff] [blame] | 79 | /* strdup so we can easily talloc_free in the VTY code */ |
| 80 | gw->config.iuh_local_ip = talloc_strdup(gw, HNBGW_LOCAL_IP_DEFAULT); |
Neels Hofmeyr | c7ccdd4 | 2016-10-13 14:43:49 +0200 | [diff] [blame] | 81 | gw->config.iuh_local_port = IUH_DEFAULT_SCTP_PORT; |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 82 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 83 | gw->next_ue_ctx_id = 23; |
| 84 | INIT_LLIST_HEAD(&gw->hnb_list); |
| 85 | INIT_LLIST_HEAD(&gw->ue_list); |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 86 | |
| 87 | context_map_init(gw); |
| 88 | |
| 89 | return gw; |
| 90 | } |
| 91 | |
| 92 | struct ue_context *ue_context_by_id(struct hnb_gw *gw, uint32_t id) |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 93 | { |
| 94 | struct ue_context *ue; |
| 95 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 96 | llist_for_each_entry(ue, &gw->ue_list, list) { |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 97 | if (ue->context_id == id) |
| 98 | return ue; |
| 99 | } |
| 100 | return NULL; |
| 101 | |
| 102 | } |
| 103 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 104 | struct ue_context *ue_context_by_imsi(struct hnb_gw *gw, const char *imsi) |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 105 | { |
| 106 | struct ue_context *ue; |
| 107 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 108 | llist_for_each_entry(ue, &gw->ue_list, list) { |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 109 | if (!strcmp(ue->imsi, imsi)) |
| 110 | return ue; |
| 111 | } |
| 112 | return NULL; |
| 113 | } |
| 114 | |
Neels Hofmeyr | f33e835 | 2016-09-22 18:06:59 +0200 | [diff] [blame] | 115 | struct ue_context *ue_context_by_tmsi(struct hnb_gw *gw, uint32_t tmsi) |
| 116 | { |
| 117 | struct ue_context *ue; |
| 118 | |
| 119 | llist_for_each_entry(ue, &gw->ue_list, list) { |
| 120 | if (ue->tmsi == tmsi) |
| 121 | return ue; |
| 122 | } |
| 123 | return NULL; |
| 124 | } |
| 125 | |
Daniel Willmann | 1ee089f | 2016-01-06 18:07:02 +0100 | [diff] [blame] | 126 | void ue_context_free_by_hnb(struct hnb_gw *gw, const struct hnb_context *hnb) |
| 127 | { |
| 128 | struct ue_context *ue, *tmp; |
| 129 | |
| 130 | llist_for_each_entry_safe(ue, tmp, &gw->ue_list, list) { |
| 131 | if (ue->hnb == hnb) |
| 132 | ue_context_free(ue); |
| 133 | } |
| 134 | } |
| 135 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 136 | static uint32_t get_next_ue_ctx_id(struct hnb_gw *gw) |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 137 | { |
| 138 | uint32_t id; |
| 139 | |
| 140 | do { |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 141 | id = gw->next_ue_ctx_id++; |
| 142 | } while (ue_context_by_id(gw, id)); |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 143 | |
| 144 | return id; |
| 145 | } |
| 146 | |
Neels Hofmeyr | f33e835 | 2016-09-22 18:06:59 +0200 | [diff] [blame] | 147 | struct ue_context *ue_context_alloc(struct hnb_context *hnb, const char *imsi, |
| 148 | uint32_t tmsi) |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 149 | { |
| 150 | struct ue_context *ue; |
| 151 | |
| 152 | ue = talloc_zero(tall_hnb_ctx, struct ue_context); |
| 153 | if (!ue) |
| 154 | return NULL; |
| 155 | |
| 156 | ue->hnb = hnb; |
Harald Welte | e08cdd9 | 2016-11-26 00:01:53 +0100 | [diff] [blame] | 157 | if (imsi) { |
Neels Hofmeyr | f33e835 | 2016-09-22 18:06:59 +0200 | [diff] [blame] | 158 | strncpy(ue->imsi, imsi, sizeof(ue->imsi)); |
Harald Welte | e08cdd9 | 2016-11-26 00:01:53 +0100 | [diff] [blame] | 159 | ue->imsi[sizeof(ue->imsi)-1] = '\0'; |
| 160 | } else |
Neels Hofmeyr | f33e835 | 2016-09-22 18:06:59 +0200 | [diff] [blame] | 161 | ue->imsi[0] = '\0'; |
| 162 | ue->tmsi = tmsi; |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 163 | ue->context_id = get_next_ue_ctx_id(hnb->gw); |
| 164 | llist_add_tail(&ue->list, &hnb->gw->ue_list); |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 165 | |
Neels Hofmeyr | 0476e28 | 2016-09-22 19:37:29 +0200 | [diff] [blame] | 166 | LOGP(DHNBAP, LOGL_INFO, "created UE context: id 0x%x, imsi %s, tmsi 0x%x\n", |
| 167 | ue->context_id, imsi? imsi : "-", tmsi); |
| 168 | |
Harald Welte | b534e5c | 2015-09-11 00:15:16 +0200 | [diff] [blame] | 169 | return ue; |
| 170 | } |
| 171 | |
| 172 | void ue_context_free(struct ue_context *ue) |
| 173 | { |
| 174 | llist_del(&ue->list); |
| 175 | talloc_free(ue); |
| 176 | } |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 177 | static int hnb_close_cb(struct osmo_stream_srv *conn) |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 178 | { |
Harald Welte | da86fe5 | 2017-11-21 08:14:37 +0100 | [diff] [blame] | 179 | return 0; |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | static int hnb_read_cb(struct osmo_stream_srv *conn) |
| 183 | { |
| 184 | struct hnb_context *hnb = osmo_stream_srv_get_data(conn); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 185 | struct msgb *msg = msgb_alloc(IUH_MSGB_SIZE, "Iuh rx"); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 186 | int rc; |
| 187 | |
| 188 | if (!msg) |
| 189 | return -ENOMEM; |
| 190 | |
Harald Welte | 350814a | 2015-09-10 22:32:15 +0200 | [diff] [blame] | 191 | /* we store a reference to the HomeNodeB in the msg->dest for the |
| 192 | * benefit of varoius downstream processing functions */ |
| 193 | msg->dst = hnb; |
| 194 | |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 195 | rc = osmo_stream_srv_recv(conn, msg); |
| 196 | if (rc == -EAGAIN) { |
| 197 | /* Notification received */ |
| 198 | msgb_free(msg); |
| 199 | return 0; |
| 200 | } else if (rc < 0) { |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 201 | LOGP(DMAIN, LOGL_ERROR, "Error during sctp_recvmsg()\n"); |
Harald Welte | ee77cff | 2015-08-30 16:57:53 +0200 | [diff] [blame] | 202 | /* FIXME: clean up after disappeared HNB */ |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 203 | hnb_context_release(hnb); |
Daniel Willmann | 269b8ac | 2015-12-22 16:26:48 +0100 | [diff] [blame] | 204 | goto out; |
Daniel Willmann | 4267a29 | 2015-12-15 20:29:27 +0100 | [diff] [blame] | 205 | } else if (rc == 0) { |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 206 | hnb_context_release(hnb); |
Daniel Willmann | 269b8ac | 2015-12-22 16:26:48 +0100 | [diff] [blame] | 207 | rc = -1; |
Daniel Willmann | 4267a29 | 2015-12-15 20:29:27 +0100 | [diff] [blame] | 208 | |
Daniel Willmann | 269b8ac | 2015-12-22 16:26:48 +0100 | [diff] [blame] | 209 | goto out; |
Daniel Willmann | 4267a29 | 2015-12-15 20:29:27 +0100 | [diff] [blame] | 210 | } else { |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 211 | msgb_put(msg, rc); |
Daniel Willmann | 4267a29 | 2015-12-15 20:29:27 +0100 | [diff] [blame] | 212 | } |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 213 | |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 214 | switch (msgb_sctp_ppid(msg)) { |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 215 | case IUH_PPI_HNBAP: |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 216 | hnb->hnbap_stream = msgb_sctp_stream(msg); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 217 | rc = hnbgw_hnbap_rx(hnb, msg); |
| 218 | break; |
| 219 | case IUH_PPI_RUA: |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 220 | hnb->rua_stream = msgb_sctp_stream(msg); |
Harald Welte | 318e4d5 | 2015-09-10 18:47:08 +0200 | [diff] [blame] | 221 | rc = hnbgw_rua_rx(hnb, msg); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 222 | break; |
| 223 | case IUH_PPI_SABP: |
| 224 | case IUH_PPI_RNA: |
| 225 | case IUH_PPI_PUA: |
Harald Welte | da86fe5 | 2017-11-21 08:14:37 +0100 | [diff] [blame] | 226 | LOGP(DMAIN, LOGL_ERROR, "Unimplemented SCTP PPID=%lu received\n", |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 227 | msgb_sctp_ppid(msg)); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 228 | rc = 0; |
| 229 | break; |
| 230 | default: |
Harald Welte | da86fe5 | 2017-11-21 08:14:37 +0100 | [diff] [blame] | 231 | LOGP(DMAIN, LOGL_ERROR, "Unknown SCTP PPID=%lu received\n", |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 232 | msgb_sctp_ppid(msg)); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 233 | rc = 0; |
| 234 | break; |
| 235 | } |
| 236 | |
Daniel Willmann | 269b8ac | 2015-12-22 16:26:48 +0100 | [diff] [blame] | 237 | out: |
Harald Welte | f2f3000 | 2015-09-08 00:09:23 +0200 | [diff] [blame] | 238 | msgb_free(msg); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 239 | return rc; |
| 240 | } |
| 241 | |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 242 | struct hnb_context *hnb_context_alloc(struct hnb_gw *gw, struct osmo_stream_srv_link *link, int new_fd) |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 243 | { |
| 244 | struct hnb_context *ctx; |
| 245 | |
| 246 | ctx = talloc_zero(tall_hnb_ctx, struct hnb_context); |
| 247 | if (!ctx) |
| 248 | return NULL; |
Neels Hofmeyr | 44beab9 | 2016-02-18 01:26:59 +0100 | [diff] [blame] | 249 | INIT_LLIST_HEAD(&ctx->map_list); |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 250 | |
| 251 | ctx->gw = gw; |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 252 | ctx->conn = osmo_stream_srv_create(tall_hnb_ctx, link, new_fd, hnb_read_cb, hnb_close_cb, ctx); |
| 253 | if (!ctx->conn) { |
| 254 | LOGP(DMAIN, LOGL_INFO, "error while creating connection\n"); |
Neels Hofmeyr | 44beab9 | 2016-02-18 01:26:59 +0100 | [diff] [blame] | 255 | talloc_free(ctx); |
| 256 | return NULL; |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 257 | } |
| 258 | |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 259 | llist_add_tail(&ctx->list, &gw->hnb_list); |
Neels Hofmeyr | 44beab9 | 2016-02-18 01:26:59 +0100 | [diff] [blame] | 260 | return ctx; |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 261 | } |
| 262 | |
| 263 | void hnb_context_release(struct hnb_context *ctx) |
| 264 | { |
| 265 | struct hnbgw_context_map *map, *map2; |
| 266 | |
| 267 | /* remove from the list of HNB contexts */ |
| 268 | llist_del(&ctx->list); |
| 269 | |
| 270 | /* deactivate all context maps */ |
| 271 | llist_for_each_entry_safe(map, map2, &ctx->map_list, hnb_list) { |
| 272 | /* remove it from list, as HNB context will soon be |
Neels Hofmeyr | 525a69e | 2016-04-19 17:54:25 +0200 | [diff] [blame] | 273 | * gone. Let's hope the second osmo_llist_del in the |
| 274 | * map garbage collector works fine? */ |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 275 | llist_del(&map->hnb_list); |
Neels Hofmeyr | 0a46156 | 2016-04-23 13:53:28 +0200 | [diff] [blame] | 276 | llist_del(&map->cn_list); |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 277 | context_map_deactivate(map); |
| 278 | } |
Daniel Willmann | 1ee089f | 2016-01-06 18:07:02 +0100 | [diff] [blame] | 279 | ue_context_free_by_hnb(ctx->gw, ctx); |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 280 | osmo_stream_srv_destroy(ctx->conn); |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 281 | |
| 282 | talloc_free(ctx); |
| 283 | } |
| 284 | |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 285 | /*! call-back when the listen FD has something to read */ |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 286 | static int accept_cb(struct osmo_stream_srv_link *srv, int fd) |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 287 | { |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 288 | struct hnb_gw *gw = osmo_stream_srv_link_get_data(srv); |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 289 | struct hnb_context *ctx; |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 290 | |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 291 | ctx = hnb_context_alloc(gw, srv, fd); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 292 | if (!ctx) |
| 293 | return -ENOMEM; |
| 294 | |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 295 | return 0; |
| 296 | } |
| 297 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 298 | static const struct log_info_cat log_cat[] = { |
| 299 | [DMAIN] = { |
Neels Hofmeyr | 6341f4d | 2016-04-04 18:02:49 +0200 | [diff] [blame] | 300 | .name = "DMAIN", .loglevel = LOGL_DEBUG, .enabled = 1, |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 301 | .color = "", |
| 302 | .description = "Main program", |
| 303 | }, |
Daniel Willmann | bded984 | 2015-12-17 11:51:17 +0100 | [diff] [blame] | 304 | [DHNBAP] = { |
| 305 | .name = "DHNBAP", .loglevel = LOGL_DEBUG, .enabled = 1, |
| 306 | .color = "", |
| 307 | .description = "Home Node B Application Part", |
| 308 | }, |
Harald Welte | f42317b | 2015-12-23 15:36:31 +0100 | [diff] [blame] | 309 | [DRUA] = { |
| 310 | .name = "DRUA", .loglevel = LOGL_DEBUG, .enabled = 1, |
| 311 | .color = "", |
| 312 | .description = "RANAP User Adaptation", |
| 313 | }, |
| 314 | [DRANAP] = { |
| 315 | .name = "DRANAP", .loglevel = LOGL_DEBUG, .enabled = 1, |
| 316 | .color = "", |
| 317 | .description = "RAN Application Part", |
| 318 | }, |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 319 | }; |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 320 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 321 | static const struct log_info hnbgw_log_info = { |
| 322 | .cat = log_cat, |
| 323 | .num_cat = ARRAY_SIZE(log_cat), |
| 324 | }; |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 325 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 326 | static struct vty_app_info vty_info = { |
| 327 | .name = "OsmoHNBGW", |
| 328 | .version = "0", |
Neels Hofmeyr | c510fc2 | 2016-10-13 16:58:04 +0200 | [diff] [blame] | 329 | .go_parent_cb = hnbgw_vty_go_parent, |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 330 | }; |
| 331 | |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 332 | static struct { |
| 333 | int daemonize; |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 334 | const char *config_file; |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 335 | bool log_disable_color; |
| 336 | bool log_enable_timestamp; |
| 337 | int log_level; |
| 338 | const char *log_category_mask; |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 339 | } hnbgw_cmdline_config = { |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 340 | 0, |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 341 | "osmo-hnbgw.cfg", |
| 342 | true, |
| 343 | false, |
| 344 | 0, |
| 345 | NULL, |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 346 | }; |
| 347 | |
| 348 | static void print_usage() |
| 349 | { |
| 350 | printf("Usage: osmo-hnbgw\n"); |
| 351 | } |
| 352 | |
| 353 | static void print_help() |
| 354 | { |
| 355 | printf(" -h --help This text.\n"); |
Neels Hofmeyr | 0f88c11 | 2017-07-03 16:49:43 +0200 | [diff] [blame] | 356 | printf(" -d option --debug=DHNBAP:DRUA:DRANAP:DMAIN Enable debugging.\n"); |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 357 | printf(" -D --daemonize Fork the process into a background daemon.\n"); |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 358 | printf(" -c --config-file filename The config file to use.\n"); |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 359 | printf(" -s --disable-color\n"); |
| 360 | printf(" -T --timestamp Prefix every log line with a timestamp.\n"); |
| 361 | printf(" -V --version Print the version of OsmoHNBGW.\n"); |
| 362 | printf(" -e --log-level number Set a global loglevel.\n"); |
| 363 | } |
| 364 | |
| 365 | static void handle_options(int argc, char **argv) |
| 366 | { |
| 367 | while (1) { |
| 368 | int option_index = 0, c; |
| 369 | static struct option long_options[] = { |
| 370 | {"help", 0, 0, 'h'}, |
| 371 | {"debug", 1, 0, 'd'}, |
| 372 | {"daemonize", 0, 0, 'D'}, |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 373 | {"config-file", 1, 0, 'c'}, |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 374 | {"disable-color", 0, 0, 's'}, |
| 375 | {"timestamp", 0, 0, 'T'}, |
| 376 | {"version", 0, 0, 'V' }, |
| 377 | {"log-level", 1, 0, 'e'}, |
| 378 | {0, 0, 0, 0} |
| 379 | }; |
| 380 | |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 381 | c = getopt_long(argc, argv, "hd:Dc:sTVe:", |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 382 | long_options, &option_index); |
| 383 | if (c == -1) |
| 384 | break; |
| 385 | |
| 386 | switch (c) { |
| 387 | case 'h': |
| 388 | print_usage(); |
| 389 | print_help(); |
| 390 | exit(0); |
| 391 | case 's': |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 392 | hnbgw_cmdline_config.log_disable_color = true; |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 393 | break; |
| 394 | case 'd': |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 395 | hnbgw_cmdline_config.log_category_mask = optarg; |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 396 | break; |
| 397 | case 'D': |
| 398 | hnbgw_cmdline_config.daemonize = 1; |
| 399 | break; |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 400 | case 'c': |
| 401 | hnbgw_cmdline_config.config_file = optarg; |
| 402 | break; |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 403 | case 'T': |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 404 | hnbgw_cmdline_config.log_enable_timestamp = true; |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 405 | break; |
| 406 | case 'e': |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 407 | hnbgw_cmdline_config.log_level = atoi(optarg); |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 408 | break; |
| 409 | case 'V': |
| 410 | print_version(1); |
| 411 | exit(0); |
| 412 | break; |
| 413 | default: |
| 414 | /* catch unknown options *as well as* missing arguments. */ |
| 415 | fprintf(stderr, "Error in command line options. Exiting.\n"); |
| 416 | exit(-1); |
| 417 | break; |
| 418 | } |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 423 | int main(int argc, char **argv) |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 424 | { |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 425 | struct osmo_stream_srv_link *srv; |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 426 | int rc; |
| 427 | |
| 428 | tall_hnb_ctx = talloc_named_const(NULL, 0, "hnb_context"); |
Harald Welte | 08de638 | 2015-08-31 09:54:45 +0200 | [diff] [blame] | 429 | talloc_asn1_ctx = talloc_named_const(NULL, 0, "asn1_context"); |
Neels Hofmeyr | 4ff1a5a | 2016-09-16 01:38:46 +0200 | [diff] [blame] | 430 | msgb_talloc_ctx_init(tall_hnb_ctx, 0); |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 431 | |
Harald Welte | c4338de | 2015-12-24 00:40:52 +0100 | [diff] [blame] | 432 | g_hnb_gw = hnb_gw_create(tall_hnb_ctx); |
Neels Hofmeyr | a4540be | 2016-04-05 14:27:48 +0200 | [diff] [blame] | 433 | g_hnb_gw->config.rnc_id = 23; |
Harald Welte | 90256ba | 2015-12-23 20:16:36 +0100 | [diff] [blame] | 434 | |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 435 | rc = osmo_init_logging(&hnbgw_log_info); |
| 436 | if (rc < 0) |
| 437 | exit(1); |
| 438 | |
Neels Hofmeyr | 0f88c11 | 2017-07-03 16:49:43 +0200 | [diff] [blame] | 439 | osmo_ss7_init(); |
| 440 | |
Neels Hofmeyr | 4c45d2b | 2016-08-18 02:10:57 +0200 | [diff] [blame] | 441 | vty_info.copyright = osmo_hnbgw_copyright; |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 442 | vty_init(&vty_info); |
Neels Hofmeyr | 4c45d2b | 2016-08-18 02:10:57 +0200 | [diff] [blame] | 443 | |
Neels Hofmeyr | ecbdc5c | 2017-07-31 13:13:24 +0200 | [diff] [blame] | 444 | osmo_ss7_vty_init_asp(tall_hnb_ctx); |
Neels Hofmeyr | 4d8eb4c | 2016-08-18 01:03:44 +0200 | [diff] [blame] | 445 | hnbgw_vty_init(g_hnb_gw, tall_hnb_ctx); |
| 446 | logging_vty_add_cmds(&hnbgw_log_info); |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 447 | |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 448 | /* Handle options after vty_init(), for --version */ |
| 449 | handle_options(argc, argv); |
| 450 | |
Neels Hofmeyr | 085cd67 | 2016-08-17 13:54:00 +0200 | [diff] [blame] | 451 | rc = vty_read_config_file(hnbgw_cmdline_config.config_file, NULL); |
| 452 | if (rc < 0) { |
| 453 | LOGP(DMAIN, LOGL_FATAL, "Failed to parse the config file: '%s'\n", |
| 454 | hnbgw_cmdline_config.config_file); |
| 455 | return 1; |
| 456 | } |
| 457 | |
Neels Hofmeyr | 1d03f19 | 2016-08-18 03:15:14 +0200 | [diff] [blame] | 458 | /* |
| 459 | * cmdline options take precedence over config file, but if no options |
| 460 | * were passed we must not override the config file. |
| 461 | */ |
| 462 | if (hnbgw_cmdline_config.log_disable_color) |
| 463 | log_set_use_color(osmo_stderr_target, 0); |
| 464 | if (hnbgw_cmdline_config.log_category_mask) |
| 465 | log_parse_category_mask(osmo_stderr_target, |
| 466 | hnbgw_cmdline_config.log_category_mask); |
| 467 | if (hnbgw_cmdline_config.log_enable_timestamp) |
| 468 | log_set_print_timestamp(osmo_stderr_target, 1); |
| 469 | if (hnbgw_cmdline_config.log_level) |
| 470 | log_set_log_level(osmo_stderr_target, |
| 471 | hnbgw_cmdline_config.log_level); |
| 472 | |
Neels Hofmeyr | a0d2147 | 2016-02-24 20:50:31 +0100 | [diff] [blame] | 473 | rc = telnet_init_dynif(NULL, g_hnb_gw, vty_get_bind_addr(), 2323); |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 474 | if (rc < 0) { |
| 475 | perror("Error binding VTY port"); |
| 476 | exit(1); |
| 477 | } |
| 478 | |
Harald Welte | bdf3fd1 | 2016-01-03 17:04:09 +0100 | [diff] [blame] | 479 | ranap_set_log_area(DRANAP); |
Harald Welte | 75a4e65 | 2015-12-22 23:59:24 +0100 | [diff] [blame] | 480 | |
Neels Hofmeyr | 0f88c11 | 2017-07-03 16:49:43 +0200 | [diff] [blame] | 481 | rc = hnbgw_cnlink_init(g_hnb_gw, |
Neels Hofmeyr | ecbdc5c | 2017-07-31 13:13:24 +0200 | [diff] [blame] | 482 | "127.0.0.1", M3UA_PORT, "127.0.0.5" /* FIXME: configurable */); |
Neels Hofmeyr | 0f88c11 | 2017-07-03 16:49:43 +0200 | [diff] [blame] | 483 | if (rc < 0) { |
| 484 | LOGP(DMAIN, LOGL_ERROR, "Failed to initialize SCCP link to CN\n"); |
| 485 | exit(1); |
| 486 | } |
| 487 | |
Neels Hofmeyr | 6e3e594 | 2016-10-27 13:13:50 +0200 | [diff] [blame] | 488 | OSMO_ASSERT(g_hnb_gw->config.iuh_local_ip); |
Neels Hofmeyr | f495b23 | 2016-08-18 02:18:00 +0200 | [diff] [blame] | 489 | LOGP(DMAIN, LOGL_NOTICE, "Listening for Iuh at %s %d\n", |
Neels Hofmeyr | 6e3e594 | 2016-10-27 13:13:50 +0200 | [diff] [blame] | 490 | g_hnb_gw->config.iuh_local_ip, |
Neels Hofmeyr | c7ccdd4 | 2016-10-13 14:43:49 +0200 | [diff] [blame] | 491 | g_hnb_gw->config.iuh_local_port); |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 492 | srv = osmo_stream_srv_link_create(tall_hnb_ctx); |
| 493 | if (!srv) { |
| 494 | perror("cannot create server"); |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 495 | exit(1); |
| 496 | } |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 497 | osmo_stream_srv_link_set_data(srv, g_hnb_gw); |
| 498 | osmo_stream_srv_link_set_proto(srv, IPPROTO_SCTP); |
Neels Hofmeyr | 6e3e594 | 2016-10-27 13:13:50 +0200 | [diff] [blame] | 499 | osmo_stream_srv_link_set_addr(srv, g_hnb_gw->config.iuh_local_ip); |
Neels Hofmeyr | c7ccdd4 | 2016-10-13 14:43:49 +0200 | [diff] [blame] | 500 | osmo_stream_srv_link_set_port(srv, g_hnb_gw->config.iuh_local_port); |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 501 | osmo_stream_srv_link_set_accept_cb(srv, accept_cb); |
| 502 | |
| 503 | if (osmo_stream_srv_link_open(srv) < 0) { |
Neels Hofmeyr | de111bc | 2016-01-13 11:54:40 +0100 | [diff] [blame] | 504 | perror("Cannot open server"); |
Daniel Willmann | 6480cad | 2016-01-06 18:06:26 +0100 | [diff] [blame] | 505 | exit(1); |
| 506 | } |
| 507 | g_hnb_gw->iuh = srv; |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 508 | |
Neels Hofmeyr | 4d675a7 | 2016-08-17 13:53:18 +0200 | [diff] [blame] | 509 | if (hnbgw_cmdline_config.daemonize) { |
Harald Welte | b3dae30 | 2015-08-30 12:20:09 +0200 | [diff] [blame] | 510 | rc = osmo_daemonize(); |
| 511 | if (rc < 0) { |
| 512 | perror("Error during daemonize"); |
| 513 | exit(1); |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | while (1) { |
| 518 | rc = osmo_select_main(0); |
| 519 | if (rc < 0) |
| 520 | exit(3); |
| 521 | } |
| 522 | |
| 523 | /* not reached */ |
| 524 | exit(0); |
Harald Welte | a2e6a7a | 2015-08-29 21:47:39 +0200 | [diff] [blame] | 525 | } |