Pau Espin Pedrol | fdd732b | 2017-10-13 14:32:24 +0200 | [diff] [blame] | 1 | /* |
Harald Welte | 632e843 | 2017-09-05 18:12:14 +0200 | [diff] [blame] | 2 | * OsmoGGSN - Gateway GPRS Support Node |
jjako | 0fe0df0 | 2004-09-17 11:30:40 +0000 | [diff] [blame] | 3 | * Copyright (C) 2002, 2003, 2004 Mondru AB. |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 4 | * Copyright (C) 2017 by Harald Welte <laforge@gnumonks.org> |
Pau Espin Pedrol | fdd732b | 2017-10-13 14:32:24 +0200 | [diff] [blame] | 5 | * |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 6 | * The contents of this file may be used under the terms of the GNU |
| 7 | * General Public License Version 2, provided that the above copyright |
| 8 | * notice and this permission notice is included in all copies or |
| 9 | * substantial portions of the software. |
Pau Espin Pedrol | fdd732b | 2017-10-13 14:32:24 +0200 | [diff] [blame] | 10 | * |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 11 | */ |
| 12 | |
| 13 | /* ggsn.c |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #ifdef __linux__ |
| 18 | #define _GNU_SOURCE 1 /* strdup() prototype, broken arpa/inet.h */ |
| 19 | #endif |
| 20 | |
jjako | 0fe0df0 | 2004-09-17 11:30:40 +0000 | [diff] [blame] | 21 | #include "../config.h" |
| 22 | |
| 23 | #ifdef HAVE_STDINT_H |
| 24 | #include <stdint.h> |
| 25 | #endif |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 26 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 27 | #include <getopt.h> |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 28 | #include <ctype.h> |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 29 | #include <signal.h> |
| 30 | #include <stdio.h> |
| 31 | #include <string.h> |
| 32 | #include <stdlib.h> |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 33 | #include <unistd.h> |
| 34 | #include <inttypes.h> |
| 35 | #include <errno.h> |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 36 | #include <sys/types.h> |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 37 | #include <sys/ioctl.h> |
| 38 | |
| 39 | #include <net/if.h> |
| 40 | #include <arpa/inet.h> |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 41 | #include <netinet/in.h> |
Harald Welte | 63ebccd | 2017-08-02 21:10:09 +0200 | [diff] [blame] | 42 | #include <netinet/ip.h> |
Harald Welte | a0d281d | 2017-08-02 21:48:16 +0200 | [diff] [blame] | 43 | #include <netinet/ip6.h> |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 44 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 45 | #include <osmocom/core/application.h> |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 46 | #include <osmocom/core/select.h> |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 47 | #include <osmocom/core/stats.h> |
| 48 | #include <osmocom/core/rate_ctr.h> |
| 49 | #include <osmocom/core/timer.h> |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 50 | #include <osmocom/ctrl/control_if.h> |
| 51 | #include <osmocom/ctrl/control_cmd.h> |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 52 | #include <osmocom/ctrl/control_vty.h> |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 53 | #include <osmocom/ctrl/ports.h> |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 54 | #include <osmocom/vty/telnet_interface.h> |
| 55 | #include <osmocom/vty/logging.h> |
| 56 | #include <osmocom/vty/stats.h> |
| 57 | #include <osmocom/vty/ports.h> |
| 58 | #include <osmocom/vty/command.h> |
| 59 | #include <osmocom/gsm/apn.h> |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 60 | |
Emmanuel Bretelle | 2a10368 | 2010-09-07 17:01:20 +0200 | [diff] [blame] | 61 | #include "../lib/tun.h" |
| 62 | #include "../lib/ippool.h" |
| 63 | #include "../lib/syserr.h" |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 64 | #include "../lib/in46_addr.h" |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 65 | #include "../gtp/pdp.h" |
| 66 | #include "../gtp/gtp.h" |
Pablo Neira Ayuso | 4b075b6 | 2015-11-17 12:22:42 +0100 | [diff] [blame] | 67 | #include "gtp-kernel.h" |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 68 | #include "icmpv6.h" |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 69 | #include "ggsn.h" |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 70 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 71 | void *tall_ggsn_ctx; |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 72 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 73 | static int end = 0; |
| 74 | static int daemonize = 0; |
| 75 | static struct ctrl_handle *g_ctrlh; |
| 76 | |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 77 | struct ul255_t qos; |
| 78 | struct ul255_t apn; |
| 79 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 80 | #define LOGPAPN(level, apn, fmt, args...) \ |
| 81 | LOGP(DGGSN, level, "APN(%s): " fmt, (apn)->cfg.name, ## args) |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 82 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 83 | #define LOGPGGSN(level, ggsn, fmt, args...) \ |
| 84 | LOGP(DGGSN, level, "GGSN(%s): " fmt, (ggsn)->cfg.name, ## args) |
| 85 | |
Max | 6a21527 | 2017-09-25 10:35:34 +0200 | [diff] [blame] | 86 | #define LOGPPDP(level, pdp, fmt, args...) LOGPDPX(DGGSN, level, pdp, fmt, ## args) |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 87 | |
| 88 | static int ggsn_tun_fd_cb(struct osmo_fd *fd, unsigned int what); |
| 89 | static int cb_tun_ind(struct tun_t *tun, void *pack, unsigned len); |
| 90 | |
| 91 | |
| 92 | static void pool_close_all_pdp(struct ippool_t *pool) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 93 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 94 | unsigned int i; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 95 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 96 | if (!pool) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 97 | return; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 98 | |
| 99 | for (i = 0; i < pool->listsize; i++) { |
| 100 | struct ippoolm_t *member = &pool->member[i]; |
| 101 | struct pdp_t *pdp; |
| 102 | |
| 103 | if (!member->inuse) |
| 104 | continue; |
| 105 | pdp = member->peer; |
| 106 | if (!pdp) |
| 107 | continue; |
| 108 | LOGPPDP(LOGL_DEBUG, pdp, "Sending DELETE PDP CTX due to shutdown\n"); |
| 109 | gtp_delete_context_req(pdp->gsn, pdp, NULL, 1); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 110 | } |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 111 | } |
| 112 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 113 | int apn_stop(struct apn_ctx *apn, bool force) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 114 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 115 | LOGPAPN(LOGL_NOTICE, apn, "%sStopping\n", force ? "FORCED " : ""); |
| 116 | /* check if pools have any active PDP contexts and bail out */ |
| 117 | pool_close_all_pdp(apn->v4.pool); |
| 118 | pool_close_all_pdp(apn->v6.pool); |
| 119 | |
| 120 | /* shutdown whatever old state might be left */ |
| 121 | if (apn->tun.tun) { |
| 122 | /* run ip-down script */ |
| 123 | if (apn->tun.cfg.ipdown_script) { |
| 124 | LOGPAPN( LOGL_INFO, apn, "Running %s\n", apn->tun.cfg.ipdown_script); |
| 125 | tun_runscript(apn->tun.tun, apn->tun.cfg.ipdown_script); |
| 126 | } |
| 127 | /* release tun device */ |
Harald Welte | ed08eb1 | 2017-10-01 18:15:56 +0800 | [diff] [blame] | 128 | LOGPAPN(LOGL_INFO, apn, "Closing TUN device %s\n", apn->tun.tun->devname); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 129 | osmo_fd_unregister(&apn->tun.fd); |
| 130 | tun_free(apn->tun.tun); |
| 131 | apn->tun.tun = NULL; |
| 132 | } |
| 133 | |
| 134 | if (apn->v4.pool) { |
| 135 | LOGPAPN(LOGL_INFO, apn, "Releasing IPv4 pool\n"); |
| 136 | ippool_free(apn->v4.pool); |
| 137 | apn->v4.pool = NULL; |
| 138 | } |
| 139 | if (apn->v6.pool) { |
| 140 | LOGPAPN(LOGL_INFO, apn, "Releasing IPv6 pool\n"); |
| 141 | ippool_free(apn->v6.pool); |
| 142 | apn->v6.pool = NULL; |
| 143 | } |
| 144 | |
| 145 | apn->started = false; |
| 146 | return 0; |
| 147 | } |
| 148 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 149 | |
Harald Welte | f55a039 | 2017-11-08 14:33:55 +0900 | [diff] [blame] | 150 | static int alloc_ippool_blacklist(struct apn_ctx *apn, struct in46_prefix **blacklist, bool ipv6) |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 151 | { |
| 152 | |
| 153 | int flags, len, len2, i; |
| 154 | |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 155 | *blacklist = NULL; |
| 156 | |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 157 | if (ipv6) |
| 158 | flags = IP_TYPE_IPv6_NONLINK; |
| 159 | else |
| 160 | flags = IP_TYPE_IPv4; |
| 161 | |
| 162 | while (1) { |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 163 | len = netdev_ip_local_get(apn->tun.cfg.dev_name, NULL, 0, flags); |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 164 | if (len < 1) |
| 165 | return len; |
| 166 | |
| 167 | *blacklist = talloc_zero_size(apn, len * sizeof(struct in46_prefix)); |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 168 | len2 = netdev_ip_local_get(apn->tun.cfg.dev_name, *blacklist, len, flags); |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 169 | if (len2 < 1) { |
| 170 | talloc_free(*blacklist); |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 171 | *blacklist = NULL; |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 172 | return len2; |
| 173 | } |
| 174 | |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 175 | if (len2 > len) { /* iface was added between 2 calls, repeat operation */ |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 176 | talloc_free(*blacklist); |
Harald Welte | e2a1de5 | 2017-11-08 15:24:07 +0900 | [diff] [blame] | 177 | *blacklist = NULL; |
| 178 | } else |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 179 | break; |
| 180 | } |
| 181 | |
| 182 | for (i = 0; i < len2; i++) |
| 183 | LOGPAPN(LOGL_INFO, apn, "Blacklist tun IP %s\n", |
| 184 | in46p_ntoa(&(*blacklist)[i])); |
| 185 | |
| 186 | return len2; |
| 187 | } |
| 188 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 189 | /* actually start the APN with its current config */ |
| 190 | int apn_start(struct apn_ctx *apn) |
| 191 | { |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 192 | int ippool_flags = IPPOOL_NONETWORK | IPPOOL_NOBROADCAST; |
Pau Espin Pedrol | a037e59 | 2017-10-16 14:41:37 +0200 | [diff] [blame] | 193 | struct in46_prefix ipv6_tun_linklocal_ip; |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 194 | struct in46_prefix *blacklist; |
| 195 | int blacklist_size; |
| 196 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 197 | if (apn->started) |
| 198 | return 0; |
| 199 | |
| 200 | LOGPAPN(LOGL_INFO, apn, "Starting\n"); |
| 201 | switch (apn->cfg.gtpu_mode) { |
| 202 | case APN_GTPU_MODE_TUN: |
| 203 | LOGPAPN(LOGL_INFO, apn, "Opening TUN device %s\n", apn->tun.cfg.dev_name); |
| 204 | if (tun_new(&apn->tun.tun, apn->tun.cfg.dev_name)) { |
| 205 | LOGPAPN(LOGL_ERROR, apn, "Failed to configure tun device\n"); |
| 206 | return -1; |
| 207 | } |
| 208 | LOGPAPN(LOGL_INFO, apn, "Opened TUN device %s\n", apn->tun.tun->devname); |
| 209 | |
| 210 | /* Register with libosmcoore */ |
| 211 | osmo_fd_setup(&apn->tun.fd, apn->tun.tun->fd, BSC_FD_READ, ggsn_tun_fd_cb, apn, 0); |
| 212 | osmo_fd_register(&apn->tun.fd); |
| 213 | |
| 214 | /* Set TUN library callback */ |
| 215 | tun_set_cb_ind(apn->tun.tun, cb_tun_ind); |
| 216 | |
| 217 | if (apn->v4.cfg.ifconfig_prefix.addr.len) { |
| 218 | LOGPAPN(LOGL_INFO, apn, "Setting tun IP address %s\n", |
| 219 | in46p_ntoa(&apn->v4.cfg.ifconfig_prefix)); |
| 220 | if (tun_setaddr(apn->tun.tun, &apn->v4.cfg.ifconfig_prefix.addr, NULL, |
| 221 | apn->v4.cfg.ifconfig_prefix.prefixlen)) { |
| 222 | LOGPAPN(LOGL_ERROR, apn, "Failed to set tun IPv4 address %s: %s\n", |
| 223 | in46p_ntoa(&apn->v4.cfg.ifconfig_prefix), strerror(errno)); |
| 224 | apn_stop(apn, false); |
| 225 | return -1; |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | if (apn->v6.cfg.ifconfig_prefix.addr.len) { |
| 230 | LOGPAPN(LOGL_INFO, apn, "Setting tun IPv6 address %s\n", |
| 231 | in46p_ntoa(&apn->v6.cfg.ifconfig_prefix)); |
| 232 | if (tun_setaddr(apn->tun.tun, &apn->v6.cfg.ifconfig_prefix.addr, NULL, |
| 233 | apn->v6.cfg.ifconfig_prefix.prefixlen)) { |
Harald Welte | ed1ba2c | 2017-10-01 18:16:17 +0800 | [diff] [blame] | 234 | LOGPAPN(LOGL_ERROR, apn, "Failed to set tun IPv6 address %s: %s. " |
| 235 | "Ensure you have ipv6 support and not used the disable_ipv6 sysctl?\n", |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 236 | in46p_ntoa(&apn->v6.cfg.ifconfig_prefix), strerror(errno)); |
| 237 | apn_stop(apn, false); |
| 238 | return -1; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | if (apn->tun.cfg.ipup_script) { |
| 243 | LOGPAPN(LOGL_INFO, apn, "Running ip-up script %s\n", |
| 244 | apn->tun.cfg.ipup_script); |
| 245 | tun_runscript(apn->tun.tun, apn->tun.cfg.ipup_script); |
| 246 | } |
Harald Welte | f85fe97 | 2017-09-24 20:00:34 +0800 | [diff] [blame] | 247 | |
| 248 | if (apn->cfg.apn_type_mask & (APN_TYPE_IPv6|APN_TYPE_IPv4v6)) { |
Pau Espin Pedrol | a037e59 | 2017-10-16 14:41:37 +0200 | [diff] [blame] | 249 | if (tun_ip_local_get(apn->tun.tun, &ipv6_tun_linklocal_ip, 1, IP_TYPE_IPv6_LINK) < 1) { |
Harald Welte | f85fe97 | 2017-09-24 20:00:34 +0800 | [diff] [blame] | 250 | LOGPAPN(LOGL_ERROR, apn, "Cannot obtain IPv6 link-local address of " |
| 251 | "interface: %s\n", strerror(errno)); |
| 252 | apn_stop(apn, false); |
| 253 | return -1; |
| 254 | } |
Pau Espin Pedrol | a037e59 | 2017-10-16 14:41:37 +0200 | [diff] [blame] | 255 | apn->v6_lladdr = ipv6_tun_linklocal_ip.addr.v6; |
Harald Welte | f85fe97 | 2017-09-24 20:00:34 +0800 | [diff] [blame] | 256 | } |
| 257 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 258 | /* set back-pointer from TUN device to APN */ |
| 259 | apn->tun.tun->priv = apn; |
| 260 | break; |
| 261 | case APN_GTPU_MODE_KERNEL_GTP: |
| 262 | LOGPAPN(LOGL_ERROR, apn, "FIXME: Kernel GTP\n"); |
| 263 | #if 0 |
| 264 | /* use GTP kernel module for data packet encapsulation */ |
| 265 | if (gtp_kernel_init(gsn, &net.v4, prefixlen, net_arg) < 0) |
| 266 | goto err; |
| 267 | #endif |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 268 | break; |
| 269 | default: |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 270 | LOGPAPN(LOGL_ERROR, apn, "Unknown GTPU Mode %d\n", apn->cfg.gtpu_mode); |
| 271 | return -1; |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 272 | } |
jjako | 0141d20 | 2004-01-09 15:19:20 +0000 | [diff] [blame] | 273 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 274 | /* Create IPv4 pool */ |
| 275 | if (apn->v4.cfg.dynamic_prefix.addr.len) { |
| 276 | LOGPAPN(LOGL_INFO, apn, "Creating IPv4 pool %s\n", |
| 277 | in46p_ntoa(&apn->v4.cfg.dynamic_prefix)); |
Harald Welte | f55a039 | 2017-11-08 14:33:55 +0900 | [diff] [blame] | 278 | if ((blacklist_size = alloc_ippool_blacklist(apn, &blacklist, false)) < 0) |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 279 | LOGPAPN(LOGL_ERROR, apn, "Failed obtaining IPv4 tun IPs\n"); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 280 | if (ippool_new(&apn->v4.pool, &apn->v4.cfg.dynamic_prefix, |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 281 | &apn->v4.cfg.static_prefix, ippool_flags, |
| 282 | blacklist, blacklist_size)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 283 | LOGPAPN(LOGL_ERROR, apn, "Failed to create IPv4 pool\n"); |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 284 | talloc_free(blacklist); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 285 | apn_stop(apn, false); |
| 286 | return -1; |
| 287 | } |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 288 | talloc_free(blacklist); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 289 | } |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 290 | |
| 291 | /* Create IPv6 pool */ |
| 292 | if (apn->v6.cfg.dynamic_prefix.addr.len) { |
| 293 | LOGPAPN(LOGL_INFO, apn, "Creating IPv6 pool %s\n", |
| 294 | in46p_ntoa(&apn->v6.cfg.dynamic_prefix)); |
Harald Welte | f55a039 | 2017-11-08 14:33:55 +0900 | [diff] [blame] | 295 | if ((blacklist_size = alloc_ippool_blacklist(apn, &blacklist, true)) < 0) |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 296 | LOGPAPN(LOGL_ERROR, apn, "Failed obtaining IPv6 tun IPs\n"); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 297 | if (ippool_new(&apn->v6.pool, &apn->v6.cfg.dynamic_prefix, |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 298 | &apn->v6.cfg.static_prefix, ippool_flags, |
| 299 | blacklist, blacklist_size)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 300 | LOGPAPN(LOGL_ERROR, apn, "Failed to create IPv6 pool\n"); |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 301 | talloc_free(blacklist); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 302 | apn_stop(apn, false); |
| 303 | return -1; |
| 304 | } |
Pau Espin Pedrol | 859f9b0 | 2017-10-16 14:52:25 +0200 | [diff] [blame] | 305 | talloc_free(blacklist); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | LOGPAPN(LOGL_NOTICE, apn, "Successfully started\n"); |
| 309 | apn->started = true; |
| 310 | return 0; |
jjako | 0141d20 | 2004-01-09 15:19:20 +0000 | [diff] [blame] | 311 | } |
jjako | 0141d20 | 2004-01-09 15:19:20 +0000 | [diff] [blame] | 312 | |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 313 | static bool send_trap(const struct gsn_t *gsn, const struct pdp_t *pdp, const struct ippoolm_t *member, const char *var) |
| 314 | { |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 315 | char addrbuf[256]; |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 316 | char val[NAMESIZE]; |
| 317 | |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 318 | const char *addrstr = in46a_ntop(&member->addr, addrbuf, sizeof(addrbuf)); |
| 319 | |
Harald Welte | b10ee08 | 2017-08-12 19:29:16 +0200 | [diff] [blame] | 320 | snprintf(val, sizeof(val), "%s,%s", imsi_gtp2str(&pdp->imsi), addrstr); |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 321 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 322 | if (ctrl_cmd_send_trap(g_ctrlh, var, val) < 0) { |
| 323 | LOGPPDP(LOGL_ERROR, pdp, "Failed to create and send TRAP %s\n", var); |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 324 | return false; |
| 325 | } |
| 326 | return true; |
| 327 | } |
| 328 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 329 | static int delete_context(struct pdp_t *pdp) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 330 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 331 | struct gsn_t *gsn = pdp->gsn; |
| 332 | struct ippoolm_t *ipp = (struct ippoolm_t *)pdp->peer; |
| 333 | |
| 334 | LOGPPDP(LOGL_INFO, pdp, "Deleting PDP context\n"); |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 335 | struct ippoolm_t *member = pdp->peer; |
Max | dbd7024 | 2016-10-14 13:38:05 +0200 | [diff] [blame] | 336 | |
| 337 | if (pdp->peer) { |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 338 | send_trap(gsn, pdp, member, "imsi-rem-ip"); /* TRAP with IP removal */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 339 | ippool_freeip(ipp->pool, ipp); |
Max | dbd7024 | 2016-10-14 13:38:05 +0200 | [diff] [blame] | 340 | } else |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 341 | LOGPPDP(LOGL_ERROR, pdp, "Cannot find/free IP Pool member\n"); |
Pablo Neira Ayuso | 4b075b6 | 2015-11-17 12:22:42 +0100 | [diff] [blame] | 342 | |
| 343 | if (gtp_kernel_tunnel_del(pdp)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 344 | LOGPPDP(LOGL_ERROR, pdp, "Cannot delete tunnel from kernel:%s\n", |
Pablo Neira Ayuso | 4b075b6 | 2015-11-17 12:22:42 +0100 | [diff] [blame] | 345 | strerror(errno)); |
| 346 | } |
| 347 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 348 | return 0; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 349 | } |
| 350 | |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 351 | #include <osmocom/gsm/tlv.h> |
| 352 | |
| 353 | /* 3GPP TS 24.008 10.6.5.3 */ |
| 354 | enum pco_protocols { |
| 355 | PCO_P_LCP = 0xC021, |
| 356 | PCO_P_PAP = 0xC023, |
| 357 | PCO_P_CHAP = 0xC223, |
| 358 | PCO_P_IPCP = 0x8021, |
| 359 | PCO_P_PCSCF_ADDR = 0x0001, |
| 360 | PCO_P_IM_CN_SS_F = 0x0002, |
| 361 | PCO_P_DNS_IPv6_ADDR = 0x0003, |
| 362 | PCO_P_POLICY_CTRL_REJ = 0x0004, /* only in Network->MS */ |
| 363 | PCO_P_MS_SUP_NETREQ_BCI = 0x0005, |
| 364 | /* reserved */ |
| 365 | PCO_P_DSMIPv6_HA_ADDR = 0x0007, |
| 366 | PCO_P_DSMIPv6_HN_PREF = 0x0008, |
| 367 | PCO_P_DSMIPv6_v4_HA_ADDR= 0x0009, |
| 368 | PCO_P_IP_ADDR_VIA_NAS = 0x000a, /* only MS->Network */ |
| 369 | PCO_P_IPv4_ADDR_VIA_DHCP= 0x000b, /* only MS->Netowrk */ |
| 370 | PCO_P_PCSCF_IPv4_ADDR = 0x000c, |
| 371 | PCO_P_DNS_IPv4_ADDR = 0x000d, |
| 372 | PCO_P_MSISDN = 0x000e, |
| 373 | PCO_P_IFOM_SUPPORT = 0x000f, |
| 374 | PCO_P_IPv4_LINK_MTU = 0x0010, |
| 375 | PCO_P_MS_SUPP_LOC_A_TFT = 0x0011, |
| 376 | PCO_P_PCSCF_RESEL_SUP = 0x0012, /* only MS->Network */ |
| 377 | PCO_P_NBIFOM_REQ = 0x0013, |
| 378 | PCO_P_NBIFOM_MODE = 0x0014, |
| 379 | PCO_P_NONIP_LINK_MTU = 0x0015, |
| 380 | PCO_P_APN_RATE_CTRL_SUP = 0x0016, |
| 381 | PCO_P_PS_DATA_OFF_UE = 0x0017, |
| 382 | PCO_P_REL_DATA_SVC = 0x0018, |
| 383 | }; |
| 384 | |
| 385 | /* determine if PCO contains given protocol */ |
| 386 | static bool pco_contains_proto(struct ul255_t *pco, uint16_t prot) |
| 387 | { |
| 388 | uint8_t *cur = pco->v + 1; |
| 389 | |
| 390 | /* iterate over PCO and check if protocol contained */ |
Pau Espin Pedrol | 0ab62fe | 2017-08-30 15:51:24 +0200 | [diff] [blame] | 391 | while (cur + 3 <= pco->v + pco->l) { |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 392 | uint16_t cur_prot = osmo_load16be(cur); |
| 393 | uint8_t cur_len = cur[2]; |
| 394 | if (cur_prot == prot) |
| 395 | return true; |
| 396 | if (cur_len == 0) |
| 397 | break; |
Pau Espin Pedrol | 0ab62fe | 2017-08-30 15:51:24 +0200 | [diff] [blame] | 398 | cur += cur_len + 3; |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 399 | } |
| 400 | return false; |
| 401 | } |
| 402 | |
| 403 | /* determine if PDP context has IPv6 support */ |
| 404 | static bool pdp_has_v4(struct pdp_t *pdp) |
| 405 | { |
| 406 | if (pdp->eua.l == 4+2) |
| 407 | return true; |
| 408 | else |
| 409 | return false; |
| 410 | } |
| 411 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 412 | /* construct an IPCP PCO from up to two given DNS addreses */ |
| 413 | static int build_ipcp_pco(struct msgb *msg, uint8_t id, const struct in46_addr *dns1, |
| 414 | const struct in46_addr *dns2) |
| 415 | { |
| 416 | uint8_t *len1, *len2; |
| 417 | uint8_t *start = msg->tail; |
| 418 | unsigned int len_appended; |
| 419 | |
| 420 | /* Three byte T16L header */ |
| 421 | msgb_put_u16(msg, 0x8021); /* IPCP */ |
| 422 | len1 = msgb_put(msg, 1); /* Length of contents: delay */ |
| 423 | |
| 424 | msgb_put_u8(msg, 0x02); /* ACK */ |
| 425 | msgb_put_u8(msg, id); /* ID: Needs to match request */ |
| 426 | msgb_put_u8(msg, 0x00); /* Length MSB */ |
| 427 | len2 = msgb_put(msg, 1); /* Length LSB: delay */ |
| 428 | |
| 429 | if (dns1 && dns1->len == 4) { |
| 430 | msgb_put_u8(msg, 0x81); /* DNS1 Tag */ |
| 431 | msgb_put_u8(msg, 2 + dns1->len);/* DNS1 Length, incl. TL */ |
| 432 | msgb_put_u32(msg, dns1->v4.s_addr); |
| 433 | } |
| 434 | |
| 435 | if (dns2 && dns2->len == 4) { |
| 436 | msgb_put_u8(msg, 0x83); /* DNS2 Tag */ |
| 437 | msgb_put_u8(msg, 2 + dns2->len);/* DNS2 Length, incl. TL */ |
| 438 | msgb_put_u32(msg, dns2->v4.s_addr); |
| 439 | } |
| 440 | |
| 441 | /* patch in length values */ |
| 442 | len_appended = msg->tail - start; |
| 443 | *len1 = len_appended - 3; |
| 444 | *len2 = len_appended - 3; |
| 445 | |
| 446 | return 0; |
| 447 | } |
| 448 | |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 449 | /* process one PCO request from a MS/UE, putting together the proper responses */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 450 | static void process_pco(struct apn_ctx *apn, struct pdp_t *pdp) |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 451 | { |
| 452 | struct msgb *msg = msgb_alloc(256, "PCO"); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 453 | unsigned int i; |
| 454 | |
| 455 | OSMO_ASSERT(msg); |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 456 | msgb_put_u8(msg, 0x80); /* ext-bit + configuration protocol byte */ |
| 457 | |
| 458 | /* FIXME: also check if primary / secondary DNS was requested */ |
| 459 | if (pdp_has_v4(pdp) && pco_contains_proto(&pdp->pco_req, PCO_P_IPCP)) { |
| 460 | /* FIXME: properly implement this for IPCP */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 461 | build_ipcp_pco(msg, 0, &apn->v4.cfg.dns[0], &apn->v4.cfg.dns[1]); |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | if (pco_contains_proto(&pdp->pco_req, PCO_P_DNS_IPv6_ADDR)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 465 | for (i = 0; i < ARRAY_SIZE(apn->v6.cfg.dns); i++) { |
| 466 | struct in46_addr *i46a = &apn->v6.cfg.dns[i]; |
| 467 | if (i46a->len != 16) |
| 468 | continue; |
| 469 | msgb_t16lv_put(msg, PCO_P_DNS_IPv6_ADDR, i46a->len, i46a->v6.s6_addr); |
| 470 | } |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 471 | } |
| 472 | |
| 473 | if (pco_contains_proto(&pdp->pco_req, PCO_P_DNS_IPv4_ADDR)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 474 | for (i = 0; i < ARRAY_SIZE(apn->v4.cfg.dns); i++) { |
| 475 | struct in46_addr *i46a = &apn->v4.cfg.dns[i]; |
| 476 | if (i46a->len != 4) |
| 477 | continue; |
| 478 | msgb_t16lv_put(msg, PCO_P_DNS_IPv4_ADDR, i46a->len, (uint8_t *)&i46a->v4); |
| 479 | } |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | if (msgb_length(msg) > 1) { |
| 483 | memcpy(pdp->pco_neg.v, msgb_data(msg), msgb_length(msg)); |
| 484 | pdp->pco_neg.l = msgb_length(msg); |
| 485 | } else |
| 486 | pdp->pco_neg.l = 0; |
| 487 | |
| 488 | msgb_free(msg); |
| 489 | } |
| 490 | |
Harald Welte | 9d9d91b | 2017-10-14 16:22:16 +0200 | [diff] [blame] | 491 | static bool apn_supports_ipv4(const struct apn_ctx *apn) |
| 492 | { |
| 493 | if (apn->v4.cfg.static_prefix.addr.len || apn->v4.cfg.dynamic_prefix.addr.len) |
| 494 | return true; |
| 495 | return false; |
| 496 | } |
| 497 | |
| 498 | static bool apn_supports_ipv6(const struct apn_ctx *apn) |
| 499 | { |
| 500 | if (apn->v6.cfg.static_prefix.addr.len || apn->v6.cfg.dynamic_prefix.addr.len) |
| 501 | return true; |
| 502 | return false; |
| 503 | } |
| 504 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 505 | int create_context_ind(struct pdp_t *pdp) |
| 506 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 507 | static char name_buf[256]; |
| 508 | struct gsn_t *gsn = pdp->gsn; |
| 509 | struct ggsn_ctx *ggsn = gsn->priv; |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 510 | struct in46_addr addr; |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 511 | struct ippoolm_t *member; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 512 | struct apn_ctx *apn; |
Harald Welte | d1bf1e1 | 2017-08-03 00:00:23 +0200 | [diff] [blame] | 513 | int rc; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 514 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 515 | osmo_apn_to_str(name_buf, pdp->apn_req.v, pdp->apn_req.l); |
| 516 | |
| 517 | LOGPPDP(LOGL_DEBUG, pdp, "Processing create PDP context request for APN '%s'\n", name_buf); |
| 518 | |
| 519 | /* First find an exact APN name match */ |
| 520 | apn = ggsn_find_apn(ggsn, name_buf); |
Harald Welte | 2e84d2c | 2017-10-01 13:36:52 +0800 | [diff] [blame] | 521 | /* ignore if the APN has not been started */ |
Pau Espin Pedrol | 958256f | 2017-10-11 20:32:55 +0200 | [diff] [blame] | 522 | if (apn && !apn->started) |
Harald Welte | 2e84d2c | 2017-10-01 13:36:52 +0800 | [diff] [blame] | 523 | apn = NULL; |
Harald Welte | b16c46b | 2017-10-01 18:28:18 +0800 | [diff] [blame] | 524 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 525 | /* then try default (if any) */ |
| 526 | if (!apn) |
| 527 | apn = ggsn->cfg.default_apn; |
Harald Welte | b16c46b | 2017-10-01 18:28:18 +0800 | [diff] [blame] | 528 | /* ignore if the APN has not been started */ |
Pau Espin Pedrol | 958256f | 2017-10-11 20:32:55 +0200 | [diff] [blame] | 529 | if (apn && !apn->started) |
Harald Welte | b16c46b | 2017-10-01 18:28:18 +0800 | [diff] [blame] | 530 | apn = NULL; |
| 531 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 532 | if (!apn) { |
| 533 | /* no APN found for what user requested */ |
| 534 | LOGPPDP(LOGL_NOTICE, pdp, "Unknown APN '%s', rejecting\n", name_buf); |
| 535 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_MISSING_APN); |
| 536 | return 0; |
| 537 | } |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 538 | |
Harald Welte | d9d8862 | 2017-08-04 00:22:35 +0200 | [diff] [blame] | 539 | /* FIXME: we manually force all context requests to dynamic here! */ |
| 540 | if (pdp->eua.l > 2) |
| 541 | pdp->eua.l = 2; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 542 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 543 | memcpy(pdp->qos_neg0, pdp->qos_req0, sizeof(pdp->qos_req0)); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 544 | |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 545 | memcpy(pdp->qos_neg.v, pdp->qos_req.v, pdp->qos_req.l); /* TODO */ |
| 546 | pdp->qos_neg.l = pdp->qos_req.l; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 547 | |
Harald Welte | a0d281d | 2017-08-02 21:48:16 +0200 | [diff] [blame] | 548 | if (in46a_from_eua(&pdp->eua, &addr)) { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 549 | LOGPPDP(LOGL_ERROR, pdp, "Cannot decode EUA from MS/SGSN: %s\n", |
Harald Welte | d1bf1e1 | 2017-08-03 00:00:23 +0200 | [diff] [blame] | 550 | osmo_hexdump(pdp->eua.v, pdp->eua.l)); |
| 551 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_UNKNOWN_PDP); |
| 552 | return 0; |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 553 | } |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 554 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 555 | if (addr.len == sizeof(struct in_addr)) { |
Harald Welte | 9d9d91b | 2017-10-14 16:22:16 +0200 | [diff] [blame] | 556 | /* does this APN actually have an IPv4 pool? */ |
| 557 | if (!apn_supports_ipv4(apn)) |
| 558 | goto err_wrong_af; |
| 559 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 560 | rc = ippool_newip(apn->v4.pool, &member, &addr, 0); |
| 561 | if (rc < 0) |
| 562 | goto err_pool_full; |
| 563 | in46a_to_eua(&member->addr, &pdp->eua); |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 564 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 565 | /* TODO: In IPv6, EUA doesn't contain the actual IP addr/prefix! */ |
| 566 | if (gtp_kernel_tunnel_add(pdp) < 0) { |
| 567 | LOGPPDP(LOGL_ERROR, pdp, "Cannot add tunnel to kernel: %s\n", strerror(errno)); |
| 568 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_SYS_FAIL); |
| 569 | return 0; |
| 570 | } |
| 571 | } else if (addr.len == sizeof(struct in6_addr)) { |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 572 | struct in46_addr tmp; |
Harald Welte | 9d9d91b | 2017-10-14 16:22:16 +0200 | [diff] [blame] | 573 | |
| 574 | /* does this APN actually have an IPv6 pool? */ |
| 575 | if (!apn_supports_ipv6(apn)) |
| 576 | goto err_wrong_af; |
| 577 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 578 | rc = ippool_newip(apn->v6.pool, &member, &addr, 0); |
| 579 | if (rc < 0) |
| 580 | goto err_pool_full; |
| 581 | |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 582 | /* IPv6 doesn't really send the real/allocated address at this point, but just |
| 583 | * the link-identifier which the MS shall use for router solicitation */ |
| 584 | tmp.len = addr.len; |
| 585 | /* initialize upper 64 bits to prefix, they are discarded by MS anyway */ |
| 586 | memcpy(tmp.v6.s6_addr, &member->addr.v6, 8); |
| 587 | /* use allocated 64bit prefix as lower 64bit, used as link id by MS */ |
| 588 | memcpy(tmp.v6.s6_addr+8, &member->addr.v6, 8); |
| 589 | in46a_to_eua(&tmp, &pdp->eua); |
| 590 | } else |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 591 | OSMO_ASSERT(0); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 592 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 593 | pdp->peer = member; |
| 594 | pdp->ipif = apn->tun.tun; /* TODO */ |
| 595 | member->peer = pdp; |
Max | 3142d8d | 2017-05-04 17:45:10 +0200 | [diff] [blame] | 596 | |
| 597 | if (!send_trap(gsn, pdp, member, "imsi-ass-ip")) { /* TRAP with IP assignment */ |
Max | 727417d | 2016-08-02 17:10:38 +0200 | [diff] [blame] | 598 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_NO_RESOURCES); |
| 599 | return 0; |
| 600 | } |
Pablo Neira Ayuso | 4b075b6 | 2015-11-17 12:22:42 +0100 | [diff] [blame] | 601 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 602 | process_pco(apn, pdp); |
Harald Welte | 1ae9877 | 2017-08-09 20:28:52 +0200 | [diff] [blame] | 603 | |
Harald Welte | 93fed3b | 2017-09-24 11:43:17 +0800 | [diff] [blame] | 604 | /* Transmit G-PDU sequence numbers (only) if configured in APN */ |
| 605 | pdp->tx_gpdu_seq = apn->cfg.tx_gpdu_seq; |
| 606 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 607 | LOGPPDP(LOGL_INFO, pdp, "Successful PDP Context Creation: APN=%s(%s), TEIC=%u, IP=%s\n", |
| 608 | name_buf, apn->cfg.name, pdp->teic_own, in46a_ntoa(&member->addr)); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 609 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_ACC_REQ); |
| 610 | return 0; /* Success */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 611 | |
| 612 | err_pool_full: |
| 613 | LOGPPDP(LOGL_ERROR, pdp, "Cannot allocate IP address from pool (full!)\n"); |
| 614 | gtp_create_context_resp(gsn, pdp, -rc); |
| 615 | return 0; /* Already in use, or no more available */ |
Harald Welte | 9d9d91b | 2017-10-14 16:22:16 +0200 | [diff] [blame] | 616 | |
| 617 | err_wrong_af: |
| 618 | LOGPPDP(LOGL_ERROR, pdp, "APN doesn't support requested EUA / AF type\n"); |
| 619 | gtp_create_context_resp(gsn, pdp, GTPCAUSE_UNKNOWN_PDP); |
| 620 | return 0; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 621 | } |
| 622 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 623 | /* Internet-originated IP packet, needs to be sent via GTP towards MS */ |
| 624 | static int cb_tun_ind(struct tun_t *tun, void *pack, unsigned len) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 625 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 626 | struct apn_ctx *apn = tun->priv; |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 627 | struct ippoolm_t *ipm; |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 628 | struct in46_addr dst; |
Harald Welte | 63ebccd | 2017-08-02 21:10:09 +0200 | [diff] [blame] | 629 | struct iphdr *iph = (struct iphdr *)pack; |
Harald Welte | a0d281d | 2017-08-02 21:48:16 +0200 | [diff] [blame] | 630 | struct ip6_hdr *ip6h = (struct ip6_hdr *)pack; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 631 | struct ippool_t *pool; |
jjako | c6762cf | 2004-04-28 14:52:58 +0000 | [diff] [blame] | 632 | |
Harald Welte | 63ebccd | 2017-08-02 21:10:09 +0200 | [diff] [blame] | 633 | if (iph->version == 4) { |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 634 | if (len < sizeof(*iph) || len < 4*iph->ihl) |
| 635 | return -1; |
| 636 | dst.len = 4; |
Harald Welte | 63ebccd | 2017-08-02 21:10:09 +0200 | [diff] [blame] | 637 | dst.v4.s_addr = iph->daddr; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 638 | pool = apn->v4.pool; |
Harald Welte | a0d281d | 2017-08-02 21:48:16 +0200 | [diff] [blame] | 639 | } else if (iph->version == 6) { |
Harald Welte | d4d6e09 | 2017-08-08 18:10:43 +0200 | [diff] [blame] | 640 | /* Due to the fact that 3GPP requires an allocation of a |
| 641 | * /64 prefix to each MS, we must instruct |
| 642 | * ippool_getip() below to match only the leading /64 |
| 643 | * prefix, i.e. the first 8 bytes of the address */ |
| 644 | dst.len = 8; |
Harald Welte | a0d281d | 2017-08-02 21:48:16 +0200 | [diff] [blame] | 645 | dst.v6 = ip6h->ip6_dst; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 646 | pool = apn->v6.pool; |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 647 | } else { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 648 | LOGP(DTUN, LOGL_NOTICE, "non-IPv packet received from tun\n"); |
Harald Welte | d12eab9 | 2017-08-02 19:49:47 +0200 | [diff] [blame] | 649 | return -1; |
| 650 | } |
jjako | c6762cf | 2004-04-28 14:52:58 +0000 | [diff] [blame] | 651 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 652 | /* IPv6 packet but no IPv6 pool, or IPv4 packet with no IPv4 pool */ |
| 653 | if (!pool) |
| 654 | return 0; |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 655 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 656 | DEBUGP(DTUN, "Received packet from tun!\n"); |
| 657 | |
| 658 | if (ippool_getip(pool, &ipm, &dst)) { |
| 659 | DEBUGP(DTUN, "Received packet with no PDP contex!!\n"); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 660 | return 0; |
| 661 | } |
| 662 | |
| 663 | if (ipm->peer) /* Check if a peer protocol is defined */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 664 | gtp_data_req(apn->ggsn->gsn, (struct pdp_t *)ipm->peer, pack, len); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 665 | return 0; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 666 | } |
| 667 | |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 668 | /* RFC3307 link-local scope multicast address */ |
| 669 | static const struct in6_addr all_router_mcast_addr = { |
| 670 | .s6_addr = { 0xff,0x02,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,2 } |
| 671 | }; |
| 672 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 673 | /* MS-originated GTP1-U packet, needs to be sent via TUN device */ |
| 674 | static int encaps_tun(struct pdp_t *pdp, void *pack, unsigned len) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 675 | { |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 676 | struct iphdr *iph = (struct iphdr *)pack; |
| 677 | struct ip6_hdr *ip6h = (struct ip6_hdr *)pack; |
Harald Welte | f85fe97 | 2017-09-24 20:00:34 +0800 | [diff] [blame] | 678 | struct tun_t *tun = (struct tun_t *)pdp->ipif; |
| 679 | struct apn_ctx *apn = tun->priv; |
| 680 | |
| 681 | OSMO_ASSERT(tun); |
| 682 | OSMO_ASSERT(apn); |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 683 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 684 | LOGPPDP(LOGL_DEBUG, pdp, "Packet received: forwarding to tun\n"); |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 685 | |
| 686 | switch (iph->version) { |
| 687 | case 6: |
| 688 | /* daddr: all-routers multicast addr */ |
| 689 | if (IN6_ARE_ADDR_EQUAL(&ip6h->ip6_dst, &all_router_mcast_addr)) |
Harald Welte | f85fe97 | 2017-09-24 20:00:34 +0800 | [diff] [blame] | 690 | return handle_router_mcast(pdp->gsn, pdp, &apn->v6_lladdr, pack, len); |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 691 | break; |
| 692 | case 4: |
| 693 | break; |
| 694 | default: |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 695 | LOGPPDP(LOGL_ERROR, pdp, "Packet from MS is neither IPv4 nor IPv6: %s\n", |
| 696 | osmo_hexdump(pack, len)); |
Harald Welte | d46bcd2 | 2017-08-08 23:27:22 +0200 | [diff] [blame] | 697 | return -1; |
| 698 | } |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 699 | return tun_encaps((struct tun_t *)pdp->ipif, pack, len); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 700 | } |
| 701 | |
Harald Welte | 632e843 | 2017-09-05 18:12:14 +0200 | [diff] [blame] | 702 | static char *config_file = "osmo-ggsn.cfg"; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 703 | |
| 704 | /* callback for tun device osmocom select loop integration */ |
| 705 | static int ggsn_tun_fd_cb(struct osmo_fd *fd, unsigned int what) |
| 706 | { |
| 707 | struct apn_ctx *apn = fd->data; |
| 708 | |
| 709 | OSMO_ASSERT(what & BSC_FD_READ); |
| 710 | |
| 711 | return tun_decaps(apn->tun.tun); |
| 712 | } |
| 713 | |
| 714 | /* callback for libgtp osmocom select loop integration */ |
| 715 | static int ggsn_gtp_fd_cb(struct osmo_fd *fd, unsigned int what) |
| 716 | { |
| 717 | struct ggsn_ctx *ggsn = fd->data; |
| 718 | int rc; |
| 719 | |
| 720 | OSMO_ASSERT(what & BSC_FD_READ); |
| 721 | |
| 722 | switch (fd->priv_nr) { |
| 723 | case 0: |
| 724 | rc = gtp_decaps0(ggsn->gsn); |
| 725 | break; |
| 726 | case 1: |
| 727 | rc = gtp_decaps1c(ggsn->gsn); |
| 728 | break; |
| 729 | case 2: |
| 730 | rc = gtp_decaps1u(ggsn->gsn); |
| 731 | break; |
| 732 | default: |
| 733 | OSMO_ASSERT(0); |
| 734 | break; |
| 735 | } |
| 736 | return rc; |
| 737 | } |
| 738 | |
| 739 | static void ggsn_gtp_tmr_start(struct ggsn_ctx *ggsn) |
| 740 | { |
| 741 | struct timeval next; |
| 742 | |
| 743 | /* Retrieve next retransmission as timeval */ |
| 744 | gtp_retranstimeout(ggsn->gsn, &next); |
| 745 | |
| 746 | /* re-schedule the timer */ |
| 747 | osmo_timer_schedule(&ggsn->gtp_timer, next.tv_sec, next.tv_usec/1000); |
| 748 | } |
| 749 | |
| 750 | /* timer callback for libgtp retransmission and ping */ |
| 751 | static void ggsn_gtp_tmr_cb(void *data) |
| 752 | { |
| 753 | struct ggsn_ctx *ggsn = data; |
| 754 | |
| 755 | /* do all the retransmissions as needed */ |
| 756 | gtp_retrans(ggsn->gsn); |
| 757 | |
| 758 | ggsn_gtp_tmr_start(ggsn); |
| 759 | } |
| 760 | |
| 761 | /* To exit gracefully. Used with GCC compilation flag -pg and gprof */ |
| 762 | static void signal_handler(int s) |
| 763 | { |
| 764 | LOGP(DGGSN, LOGL_NOTICE, "signal %d received\n", s); |
| 765 | switch (s) { |
| 766 | case SIGINT: |
Harald Welte | e804947 | 2017-08-20 12:44:21 +0200 | [diff] [blame] | 767 | case SIGTERM: |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 768 | LOGP(DGGSN, LOGL_NOTICE, "SIGINT received, shutting down\n"); |
| 769 | end = 1; |
| 770 | break; |
| 771 | case SIGABRT: |
| 772 | case SIGUSR1: |
| 773 | talloc_report(tall_vty_ctx, stderr); |
| 774 | talloc_report_full(tall_ggsn_ctx, stderr); |
| 775 | break; |
| 776 | case SIGUSR2: |
| 777 | talloc_report_full(tall_vty_ctx, stderr); |
| 778 | break; |
| 779 | default: |
| 780 | break; |
| 781 | } |
| 782 | } |
| 783 | |
| 784 | |
| 785 | /* Start a given GGSN */ |
| 786 | int ggsn_start(struct ggsn_ctx *ggsn) |
| 787 | { |
| 788 | struct apn_ctx *apn; |
| 789 | int rc; |
| 790 | |
| 791 | if (ggsn->started) |
| 792 | return 0; |
| 793 | |
| 794 | LOGPGGSN(LOGL_INFO, ggsn, "Starting GGSN\n"); |
| 795 | |
| 796 | /* Start libgtp listener */ |
| 797 | if (gtp_new(&ggsn->gsn, ggsn->cfg.state_dir, &ggsn->cfg.listen_addr.v4, GTP_MODE_GGSN)) { |
| 798 | LOGPGGSN(LOGL_ERROR, ggsn, "Failed to create GTP: %s\n", strerror(errno)); |
| 799 | return -1; |
| 800 | } |
| 801 | ggsn->gsn->priv = ggsn; |
| 802 | |
Harald Welte | 9814677 | 2017-09-05 17:41:20 +0200 | [diff] [blame] | 803 | /* patch in different addresses to use (in case we're behind NAT, the listen |
| 804 | * address is different from what we advertise externally) */ |
| 805 | if (ggsn->cfg.gtpc_addr.v4.s_addr) |
| 806 | ggsn->gsn->gsnc = ggsn->cfg.gtpc_addr.v4; |
| 807 | |
| 808 | if (ggsn->cfg.gtpu_addr.v4.s_addr) |
| 809 | ggsn->gsn->gsnu = ggsn->cfg.gtpu_addr.v4; |
| 810 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 811 | /* Register File Descriptors */ |
| 812 | osmo_fd_setup(&ggsn->gtp_fd0, ggsn->gsn->fd0, BSC_FD_READ, ggsn_gtp_fd_cb, ggsn, 0); |
| 813 | rc = osmo_fd_register(&ggsn->gtp_fd0); |
| 814 | OSMO_ASSERT(rc == 0); |
| 815 | |
| 816 | osmo_fd_setup(&ggsn->gtp_fd1c, ggsn->gsn->fd1c, BSC_FD_READ, ggsn_gtp_fd_cb, ggsn, 1); |
| 817 | rc = osmo_fd_register(&ggsn->gtp_fd1c); |
| 818 | OSMO_ASSERT(rc == 0); |
| 819 | |
| 820 | osmo_fd_setup(&ggsn->gtp_fd1u, ggsn->gsn->fd1u, BSC_FD_READ, ggsn_gtp_fd_cb, ggsn, 2); |
| 821 | rc = osmo_fd_register(&ggsn->gtp_fd1u); |
| 822 | OSMO_ASSERT(rc == 0); |
| 823 | |
| 824 | /* Start GTP re-transmission timer */ |
| 825 | osmo_timer_setup(&ggsn->gtp_timer, ggsn_gtp_tmr_cb, ggsn); |
| 826 | |
| 827 | gtp_set_cb_data_ind(ggsn->gsn, encaps_tun); |
| 828 | gtp_set_cb_delete_context(ggsn->gsn, delete_context); |
| 829 | gtp_set_cb_create_context_ind(ggsn->gsn, create_context_ind); |
| 830 | |
| 831 | LOGPGGSN(LOGL_NOTICE, ggsn, "Successfully started\n"); |
| 832 | ggsn->started = true; |
| 833 | |
| 834 | llist_for_each_entry(apn, &ggsn->apn_list, list) |
| 835 | apn_start(apn); |
| 836 | |
| 837 | return 0; |
| 838 | } |
| 839 | |
| 840 | /* Stop a given GGSN */ |
| 841 | int ggsn_stop(struct ggsn_ctx *ggsn) |
| 842 | { |
| 843 | struct apn_ctx *apn; |
| 844 | |
| 845 | if (!ggsn->started) |
| 846 | return 0; |
| 847 | |
| 848 | /* iterate over all APNs and stop them */ |
| 849 | llist_for_each_entry(apn, &ggsn->apn_list, list) |
| 850 | apn_stop(apn, true); |
| 851 | |
| 852 | osmo_timer_del(&ggsn->gtp_timer); |
| 853 | |
| 854 | osmo_fd_unregister(&ggsn->gtp_fd1u); |
| 855 | osmo_fd_unregister(&ggsn->gtp_fd1c); |
| 856 | osmo_fd_unregister(&ggsn->gtp_fd0); |
| 857 | |
| 858 | if (ggsn->gsn) { |
| 859 | gtp_free(ggsn->gsn); |
| 860 | ggsn->gsn = NULL; |
| 861 | } |
| 862 | |
| 863 | ggsn->started = false; |
| 864 | return 0; |
| 865 | } |
| 866 | |
| 867 | static void print_usage() |
| 868 | { |
| 869 | printf("Usage: osmo-ggsn [-h] [-D] [-c configfile] [-V]\n"); |
| 870 | } |
| 871 | |
| 872 | static void print_help() |
| 873 | { |
| 874 | printf( " Some useful help...\n" |
| 875 | " -h --help This help text\n" |
| 876 | " -D --daemonize Fork the process into a background daemon\n" |
| 877 | " -c --config-file filename The config file to use\n" |
| 878 | " -V --version Print the version of OsmoGGSN\n" |
| 879 | ); |
| 880 | } |
| 881 | |
| 882 | static void handle_options(int argc, char **argv) |
| 883 | { |
| 884 | while (1) { |
| 885 | int option_index = 0, c; |
| 886 | static struct option long_options[] = { |
| 887 | { "help", 0, 0, 'h' }, |
| 888 | { "daemonize", 0, 0, 'D' }, |
| 889 | { "config-file", 1, 0, 'c' }, |
| 890 | { "version", 0, 0, 'V' }, |
| 891 | { 0, 0, 0, 0 } |
| 892 | }; |
| 893 | |
| 894 | c = getopt_long(argc, argv, "hdc:V", long_options, &option_index); |
| 895 | if (c == -1) |
| 896 | break; |
| 897 | |
| 898 | switch (c) { |
| 899 | case 'h': |
| 900 | print_usage(); |
| 901 | print_help(); |
| 902 | exit(0); |
| 903 | case 'D': |
| 904 | daemonize = 1; |
| 905 | break; |
| 906 | case 'c': |
| 907 | config_file = optarg; |
| 908 | break; |
| 909 | case 'V': |
| 910 | print_version(1); |
| 911 | exit(0); |
| 912 | break; |
| 913 | } |
| 914 | } |
| 915 | } |
| 916 | |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 917 | int main(int argc, char **argv) |
| 918 | { |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 919 | struct ggsn_ctx *ggsn; |
| 920 | int rc; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 921 | |
Harald Welte | 632e843 | 2017-09-05 18:12:14 +0200 | [diff] [blame] | 922 | tall_ggsn_ctx = talloc_named_const(NULL, 0, "OsmoGGSN"); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 923 | msgb_talloc_ctx_init(tall_ggsn_ctx, 0); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 924 | |
Harald Welte | e804947 | 2017-08-20 12:44:21 +0200 | [diff] [blame] | 925 | /* Handle keyboard interrupt SIGINT */ |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 926 | signal(SIGINT, &signal_handler); |
Harald Welte | e804947 | 2017-08-20 12:44:21 +0200 | [diff] [blame] | 927 | signal(SIGTERM, &signal_handler); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 928 | signal(SIGABRT, &signal_handler); |
| 929 | signal(SIGUSR1, &signal_handler); |
| 930 | signal(SIGUSR2, &signal_handler); |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 931 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 932 | osmo_init_ignore_signals(); |
Holger Hans Peter Freyther | 9c7fd8e | 2014-12-04 16:32:37 +0100 | [diff] [blame] | 933 | osmo_init_logging(&log_info); |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 934 | osmo_stats_init(tall_ggsn_ctx); |
jjako | 0141d20 | 2004-01-09 15:19:20 +0000 | [diff] [blame] | 935 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 936 | vty_init(&g_vty_info); |
| 937 | logging_vty_add_cmds(NULL); |
| 938 | osmo_stats_vty_add_cmds(&log_info); |
| 939 | ggsn_vty_init(); |
| 940 | ctrl_vty_init(tall_ggsn_ctx); |
| 941 | |
| 942 | handle_options(argc, argv); |
| 943 | |
| 944 | rate_ctr_init(tall_ggsn_ctx); |
| 945 | |
| 946 | rc = vty_read_config_file(config_file, NULL); |
| 947 | if (rc < 0) { |
| 948 | fprintf(stderr, "Failed to open config file: '%s'\n", config_file); |
| 949 | exit(2); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 950 | } |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 951 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 952 | rc = telnet_init_dynif(tall_ggsn_ctx, NULL, vty_get_bind_addr(), OSMO_VTY_PORT_GGSN); |
| 953 | if (rc < 0) |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 954 | exit(1); |
Holger Hans Peter Freyther | 9c0ff4f | 2014-03-23 10:07:26 +0100 | [diff] [blame] | 955 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 956 | g_ctrlh = ctrl_interface_setup(NULL, OSMO_CTRL_PORT_GGSN, NULL); |
| 957 | if (!g_ctrlh) { |
| 958 | LOGP(DGGSN, LOGL_ERROR, "Failed to create CTRL interface.\n"); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 959 | exit(1); |
| 960 | } |
jjako | 88c2216 | 2003-07-06 19:33:18 +0000 | [diff] [blame] | 961 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 962 | if (daemonize) { |
| 963 | rc = osmo_daemonize(); |
| 964 | if (rc < 0) { |
| 965 | perror("Error during daemonize"); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 966 | exit(1); |
| 967 | } |
| 968 | } |
jjako | 1d3db97 | 2004-01-16 09:56:56 +0000 | [diff] [blame] | 969 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 970 | #if 0 |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 971 | /* qos */ |
| 972 | qos.l = 3; |
| 973 | qos.v[2] = (args_info.qos_arg) & 0xff; |
| 974 | qos.v[1] = ((args_info.qos_arg) >> 8) & 0xff; |
| 975 | qos.v[0] = ((args_info.qos_arg) >> 16) & 0xff; |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 976 | #endif |
jjako | a7cd249 | 2003-04-11 09:40:12 +0000 | [diff] [blame] | 977 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 978 | /* Main select loop */ |
| 979 | while (!end) { |
| 980 | osmo_select_main(0); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 981 | } |
jjako | e014978 | 2003-07-06 17:07:04 +0000 | [diff] [blame] | 982 | |
Harald Welte | dda21ed | 2017-08-12 15:07:02 +0200 | [diff] [blame] | 983 | llist_for_each_entry(ggsn, &g_ggsn_list, list) |
| 984 | ggsn_stop(ggsn); |
Harald Welte | bed35df | 2011-11-02 13:06:18 +0100 | [diff] [blame] | 985 | |
| 986 | return 1; |
jjako | 52c2414 | 2002-12-16 13:33:51 +0000 | [diff] [blame] | 987 | } |