Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 1 | #include <string.h> |
| 2 | #include <stdint.h> |
| 3 | #include <inttypes.h> |
| 4 | #include <netinet/in.h> |
| 5 | #include <arpa/inet.h> |
| 6 | #include <netdb.h> |
| 7 | |
| 8 | #include <osmocom/core/talloc.h> |
| 9 | #include <osmocom/core/utils.h> |
| 10 | #include <osmocom/core/rate_ctr.h> |
| 11 | |
| 12 | #include <osmocom/vty/command.h> |
| 13 | #include <osmocom/vty/vty.h> |
| 14 | #include <osmocom/vty/misc.h> |
| 15 | |
| 16 | #include "internal.h" |
| 17 | #include "gtp.h" |
| 18 | |
| 19 | #define TUN_STR "tun device commands\n" |
| 20 | #define GTP_EP_STR "GTP endpoint commands\n" |
| 21 | #define TUNNEL_STR "GTP tunnel commands\n" |
| 22 | |
| 23 | static void show_tun_hdr(struct vty *vty) |
| 24 | { |
| 25 | vty_out(vty, |
| 26 | " tun device name | netwk namespace | use count%s", VTY_NEWLINE); |
| 27 | vty_out(vty, |
| 28 | "---------------- | ---------------- | ---------%s", VTY_NEWLINE); |
| 29 | } |
| 30 | |
| 31 | static void show_one_tun(struct vty *vty, const struct tun_device *tun) |
| 32 | { |
| 33 | vty_out(vty, "%16s | %16s | %lu%s", |
| 34 | tun->devname, tun->netns_name, tun->use_count, VTY_NEWLINE); |
| 35 | } |
| 36 | |
| 37 | DEFUN(show_tun, show_tun_cmd, |
| 38 | "show tun-device [IFNAME]", |
| 39 | SHOW_STR TUN_STR |
| 40 | "Name of TUN network device\n") |
| 41 | { |
| 42 | struct tun_device *tun; |
| 43 | |
| 44 | show_tun_hdr(vty); |
| 45 | pthread_rwlock_rdlock(&g_daemon->rwlock); |
| 46 | if (argc) { |
| 47 | tun = _tun_device_find(g_daemon, argv[0]); |
| 48 | if (!tun) { |
| 49 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 50 | vty_out(vty, "Cannot find TUN device '%s'%s", argv[0], VTY_NEWLINE); |
| 51 | return CMD_WARNING; |
| 52 | } |
| 53 | show_one_tun(vty, tun); |
| 54 | } else { |
| 55 | llist_for_each_entry(tun, &g_daemon->tun_devices, list) |
| 56 | show_one_tun(vty, tun); |
| 57 | } |
| 58 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 59 | |
| 60 | return CMD_SUCCESS; |
| 61 | } |
| 62 | |
| 63 | DEFUN(tun_create, tun_create_cmd, |
| 64 | "tun-device create IFNAME [NETNS]", |
| 65 | TUN_STR "Create a new TUN interface\n" |
| 66 | "Name of TUN network device\n" |
| 67 | "Name of network namespace for tun device\n" |
| 68 | ) |
| 69 | { |
| 70 | struct tun_device *tun; |
| 71 | const char *ifname = argv[0]; |
| 72 | const char *netns_name = NULL; |
| 73 | |
| 74 | if (argc > 1) |
| 75 | netns_name = argv[1]; |
| 76 | |
| 77 | tun = tun_device_find_or_create(g_daemon, ifname, netns_name); |
| 78 | if (!tun) { |
| 79 | vty_out(vty, "Error creating TUN%s", VTY_NEWLINE); |
| 80 | return CMD_WARNING; |
| 81 | } |
| 82 | |
| 83 | return CMD_SUCCESS; |
| 84 | } |
| 85 | |
| 86 | DEFUN(tun_destroy, tun_destroy_cmd, |
| 87 | "tun-device destroy IFNAME", |
| 88 | TUN_STR "Destroy a TUN interface\n" |
| 89 | "Name of TUN network device\n" |
| 90 | ) |
| 91 | { |
| 92 | struct tun_device *tun; |
| 93 | const char *ifname = argv[0]; |
| 94 | |
| 95 | pthread_rwlock_wrlock(&g_daemon->rwlock); |
| 96 | tun = _tun_device_find(g_daemon, ifname); |
| 97 | if (!tun) { |
| 98 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 99 | vty_out(vty, "Cannot destrory non-existant TUN%s", VTY_NEWLINE); |
| 100 | return CMD_WARNING; |
| 101 | } |
Pau Espin Pedrol | a459b5c | 2022-04-11 17:00:36 +0200 | [diff] [blame] | 102 | _tun_device_deref_release(tun); |
Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 103 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 104 | |
| 105 | return CMD_SUCCESS; |
| 106 | } |
| 107 | |
| 108 | |
| 109 | static void show_ep_hdr(struct vty *vty) |
| 110 | { |
| 111 | vty_out(vty, |
| 112 | " address port | use count%s", VTY_NEWLINE); |
| 113 | vty_out(vty, |
| 114 | " ------------------------------- | ---------%s", VTY_NEWLINE); |
| 115 | } |
| 116 | |
| 117 | static void show_one_ep(struct vty *vty, const struct gtp_endpoint *ep) |
| 118 | { |
| 119 | vty_out(vty, "%32s | %lu%s", |
| 120 | ep->name, ep->use_count, VTY_NEWLINE); |
| 121 | |
| 122 | } |
| 123 | |
| 124 | DEFUN(show_gtp, show_gtp_cmd, |
| 125 | "show gtp-endpoint [(A.B.C.D|X:X::X:X) [<0-65535>]]", |
| 126 | SHOW_STR GTP_EP_STR |
| 127 | "Local IP address\n" "Local UDP Port\n") |
| 128 | { |
| 129 | struct gtp_endpoint *ep; |
Harald Welte | f23abd7 | 2020-04-20 12:09:32 +0200 | [diff] [blame] | 130 | struct addrinfo *ai = NULL; |
Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 131 | const char *ipstr; |
| 132 | uint16_t port = GTP1U_PORT; |
| 133 | |
| 134 | if (argc > 0) { |
| 135 | ipstr = argv[0]; |
| 136 | if (argc > 1) |
| 137 | port = atoi(argv[1]); |
| 138 | |
| 139 | ai = addrinfo_helper(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, ipstr, port, true); |
| 140 | if (!ai) { |
| 141 | vty_out(vty, "Error parsing IP/Port%s", VTY_NEWLINE); |
| 142 | return CMD_WARNING; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | show_ep_hdr(vty); |
| 147 | pthread_rwlock_rdlock(&g_daemon->rwlock); |
Harald Welte | e36dbcb | 2023-07-18 14:35:41 +0200 | [diff] [blame^] | 148 | if (argc > 0) { |
Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 149 | ep = _gtp_endpoint_find(g_daemon, (const struct sockaddr_storage *) ai->ai_addr); |
| 150 | if (!ep) { |
| 151 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 152 | vty_out(vty, "Cannot find GTP endpoint %s:%s%s", argv[0], argv[1], VTY_NEWLINE); |
| 153 | freeaddrinfo(ai); |
| 154 | return CMD_WARNING; |
| 155 | } |
| 156 | show_one_ep(vty, ep); |
| 157 | } else { |
| 158 | llist_for_each_entry(ep, &g_daemon->gtp_endpoints, list) |
| 159 | show_one_ep(vty, ep); |
| 160 | } |
| 161 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 162 | |
| 163 | freeaddrinfo(ai); |
| 164 | return CMD_SUCCESS; |
| 165 | } |
| 166 | |
| 167 | DEFUN(gtp_create, gtp_create_cmd, |
| 168 | "gtp-endpoint create (A.B.C.D|X:X::X:X) [<0-65535>]", |
| 169 | GTP_EP_STR "Create a new GTP endpoint (UDP socket)\n" |
| 170 | "Local IP address\n" "Local UDP Port\n") |
| 171 | { |
| 172 | struct addrinfo *ai; |
| 173 | struct gtp_endpoint *ep; |
| 174 | const char *ipstr = argv[0]; |
| 175 | uint16_t port = GTP1U_PORT; |
| 176 | |
| 177 | if (argc > 1) |
| 178 | port = atoi(argv[1]); |
| 179 | |
| 180 | ai = addrinfo_helper(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, ipstr, port, true); |
| 181 | if (!ai) { |
| 182 | vty_out(vty, "Error parsing IP/Port%s", VTY_NEWLINE); |
| 183 | return CMD_WARNING; |
| 184 | } |
| 185 | |
| 186 | ep = gtp_endpoint_find_or_create(g_daemon, (struct sockaddr_storage *) ai->ai_addr); |
| 187 | if (!ep) { |
| 188 | vty_out(vty, "Error creating endpoint%s", VTY_NEWLINE); |
| 189 | freeaddrinfo(ai); |
| 190 | return CMD_WARNING; |
| 191 | } |
| 192 | |
| 193 | freeaddrinfo(ai); |
| 194 | return CMD_SUCCESS; |
| 195 | } |
| 196 | |
| 197 | DEFUN(gtp_destroy, gtp_destroy_cmd, |
| 198 | "gtp-endpoint destroy (A.B.C.D|X:X::X:X) [<0-65535>]", |
| 199 | GTP_EP_STR "Destroy a GTP endpoint\n" |
| 200 | "Local IP address\n" "Local UDP Port\n") |
| 201 | { |
| 202 | struct addrinfo *ai; |
| 203 | struct gtp_endpoint *ep; |
| 204 | const char *ipstr = argv[0]; |
| 205 | uint16_t port = GTP1U_PORT; |
| 206 | |
| 207 | if (argc > 1) |
| 208 | port = atoi(argv[1]); |
| 209 | |
| 210 | ai = addrinfo_helper(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, ipstr, port, true); |
| 211 | if (!ai) { |
| 212 | vty_out(vty, "Error parsing IP/Port%s", VTY_NEWLINE); |
| 213 | return CMD_WARNING; |
| 214 | } |
| 215 | |
| 216 | pthread_rwlock_wrlock(&g_daemon->rwlock); |
| 217 | ep = _gtp_endpoint_find(g_daemon, (struct sockaddr_storage *) ai->ai_addr); |
| 218 | if (!ep) { |
| 219 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 220 | vty_out(vty, "Cannot find to-be-destoryed endpoint%s", VTY_NEWLINE); |
| 221 | freeaddrinfo(ai); |
| 222 | return CMD_WARNING; |
| 223 | } |
| 224 | _gtp_endpoint_deref_destroy(ep); |
| 225 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 226 | |
| 227 | freeaddrinfo(ai); |
| 228 | return CMD_SUCCESS; |
| 229 | } |
| 230 | |
| 231 | static void show_one_tunnel(struct vty *vty, const struct gtp_tunnel *t) |
| 232 | { |
| 233 | char remote_ip[64], remote_port[16], user_addr[64]; |
| 234 | |
| 235 | getnameinfo((struct sockaddr *) &t->remote_udp, sizeof(t->remote_udp), |
| 236 | remote_ip, sizeof(remote_ip), remote_port, sizeof(remote_port), |
| 237 | NI_NUMERICHOST|NI_NUMERICSERV); |
| 238 | |
| 239 | getnameinfo((struct sockaddr *) &t->user_addr, sizeof(t->user_addr), |
| 240 | user_addr, sizeof(user_addr), NULL, 0, |
| 241 | NI_NUMERICHOST|NI_NUMERICSERV); |
| 242 | |
| 243 | |
| 244 | vty_out(vty, "%s/%08X - %s:%s/%08X %s(%s) %s%s", |
| 245 | t->gtp_ep->name, t->rx_teid, remote_ip, remote_port, t->tx_teid, |
| 246 | t->tun_dev->devname, t->tun_dev->netns_name, user_addr, VTY_NEWLINE); |
| 247 | } |
| 248 | |
| 249 | DEFUN(show_tunnel, show_tunnel_cmd, |
| 250 | "show gtp-tunnel", |
| 251 | SHOW_STR TUNNEL_STR) |
| 252 | { |
| 253 | struct gtp_tunnel *t; |
| 254 | |
| 255 | pthread_rwlock_rdlock(&g_daemon->rwlock); |
| 256 | llist_for_each_entry(t, &g_daemon->gtp_tunnels, list) { |
| 257 | show_one_tunnel(vty, t); |
| 258 | } |
| 259 | pthread_rwlock_unlock(&g_daemon->rwlock); |
| 260 | return CMD_SUCCESS; |
| 261 | } |
| 262 | |
Harald Welte | 8362efe | 2020-04-26 22:42:02 +0200 | [diff] [blame] | 263 | #define UECUPS_NODE (_LAST_OSMOVTY_NODE+1) |
| 264 | |
| 265 | static struct cmd_node uecups_node = { |
| 266 | UECUPS_NODE, |
| 267 | "%s(config-uecups)# ", |
| 268 | 1, |
| 269 | }; |
| 270 | |
| 271 | static int config_write_uecups(struct vty *vty) |
| 272 | { |
| 273 | vty_out(vty, "uecups%s", VTY_NEWLINE); |
| 274 | vty_out(vty, " local-ip %s%s", g_daemon->cfg.cups_local_ip, VTY_NEWLINE); |
| 275 | |
| 276 | return CMD_SUCCESS; |
| 277 | } |
| 278 | |
| 279 | DEFUN(cfg_uecups, cfg_uecups_cmd, |
| 280 | "uecups", |
| 281 | "Configure the UE Control/User Plane Socket\n") |
| 282 | { |
| 283 | vty->node = UECUPS_NODE; |
| 284 | return CMD_SUCCESS; |
| 285 | } |
| 286 | |
| 287 | DEFUN(cfg_uecups_local_ip, cfg_uecups_local_ip_cmd, |
| 288 | "local-ip A.B.C.D", |
| 289 | "Set the IP address to which we bind locally\n" |
| 290 | "IP Address\n") |
| 291 | { |
| 292 | osmo_talloc_replace_string(g_daemon, &g_daemon->cfg.cups_local_ip, argv[0]); |
| 293 | return CMD_SUCCESS; |
| 294 | } |
| 295 | |
Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 296 | |
| 297 | int gtpud_vty_init(void) |
| 298 | { |
| 299 | install_element_ve(&show_tun_cmd); |
| 300 | install_element(ENABLE_NODE, &tun_create_cmd); |
| 301 | install_element(ENABLE_NODE, &tun_destroy_cmd); |
| 302 | |
| 303 | install_element_ve(&show_gtp_cmd); |
| 304 | install_element(ENABLE_NODE, >p_create_cmd); |
| 305 | install_element(ENABLE_NODE, >p_destroy_cmd); |
| 306 | |
| 307 | install_element_ve(&show_tunnel_cmd); |
| 308 | |
Harald Welte | 8362efe | 2020-04-26 22:42:02 +0200 | [diff] [blame] | 309 | install_element(CONFIG_NODE, &cfg_uecups_cmd); |
| 310 | install_node(&uecups_node, config_write_uecups); |
| 311 | install_element(UECUPS_NODE, &cfg_uecups_local_ip_cmd); |
| 312 | |
Harald Welte | f736559 | 2020-04-15 21:48:45 +0200 | [diff] [blame] | 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | |
| 317 | static const char copyright[] = |
| 318 | "Copyright (C) 2020 Harald Welte <laforge@gnumonks.org>\r\n" |
| 319 | "License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl-2.0.html>\r\n" |
| 320 | "This is free software: you are free to change and redistribute it.\r\n" |
| 321 | "There is NO WARRANTY, to the extent permitted by law.\r\n"; |
| 322 | |
| 323 | struct vty_app_info g_vty_info = { |
| 324 | .name = "osmo-gtpud", |
| 325 | .version = PACKAGE_VERSION, |
| 326 | .copyright = copyright, |
| 327 | }; |