Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 1 | /* SMPP 3.4 interface, SMSC-side implementation */ |
| 2 | /* (C) 2012 by Harald Welte <laforge@gnumonks.org> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
| 18 | |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
| 22 | #include <string.h> |
| 23 | #include <stdint.h> |
| 24 | #include <errno.h> |
| 25 | |
| 26 | #include <sys/socket.h> |
| 27 | #include <netinet/in.h> |
| 28 | |
| 29 | #include <smpp34.h> |
| 30 | #include <smpp34_structs.h> |
| 31 | #include <smpp34_params.h> |
| 32 | |
| 33 | #include <osmocom/core/utils.h> |
| 34 | #include <osmocom/core/socket.h> |
| 35 | #include <osmocom/core/msgb.h> |
| 36 | #include <osmocom/core/logging.h> |
| 37 | #include <osmocom/core/write_queue.h> |
| 38 | #include <osmocom/core/talloc.h> |
| 39 | |
| 40 | #include "smpp_smsc.h" |
| 41 | |
| 42 | #include <openbsc/debug.h> |
Holger Hans Peter Freyther | 2edde4a | 2013-04-29 09:11:02 +0200 | [diff] [blame^] | 43 | #include <openbsc/gsm_data.h> |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 44 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 45 | /*! \brief Ugly wrapper. libsmpp34 should do this itself! */ |
| 46 | #define SMPP34_UNPACK(rc, type, str, data, len) \ |
| 47 | memset(str, 0, sizeof(*str)); \ |
| 48 | rc = smpp34_unpack(type, str, data, len) |
| 49 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 50 | enum emse_bind { |
| 51 | ESME_BIND_RX = 0x01, |
| 52 | ESME_BIND_TX = 0x02, |
| 53 | }; |
| 54 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 55 | const struct value_string smpp_status_strs[] = { |
| 56 | { ESME_ROK, "No Error" }, |
| 57 | { ESME_RINVMSGLEN, "Message Length is invalid" }, |
| 58 | { ESME_RINVCMDLEN, "Command Length is invalid" }, |
| 59 | { ESME_RINVCMDID, "Invalid Command ID" }, |
| 60 | { ESME_RINVBNDSTS, "Incorrect BIND Status for given command" }, |
| 61 | { ESME_RALYBND, "ESME Already in Bound State" }, |
| 62 | { ESME_RINVPRTFLG, "Invalid Priority Flag" }, |
| 63 | { ESME_RINVREGDLVFLG, "Invalid Registered Delivery Flag" }, |
| 64 | { ESME_RSYSERR, "System Error" }, |
| 65 | { ESME_RINVSRCADR, "Invalid Source Address" }, |
| 66 | { ESME_RINVDSTADR, "Invalid Destination Address" }, |
| 67 | { ESME_RINVMSGID, "Message ID is invalid" }, |
| 68 | { ESME_RBINDFAIL, "Bind failed" }, |
| 69 | { ESME_RINVPASWD, "Invalid Password" }, |
| 70 | { ESME_RINVSYSID, "Invalid System ID" }, |
| 71 | { ESME_RCANCELFAIL, "Cancel SM Failed" }, |
| 72 | { ESME_RREPLACEFAIL, "Replace SM Failed" }, |
| 73 | { ESME_RMSGQFUL, "Message Queue Full" }, |
| 74 | { ESME_RINVSERTYP, "Invalid Service Type" }, |
| 75 | { ESME_RINVNUMDESTS, "Invalid number of destinations" }, |
| 76 | { ESME_RINVDLNAME, "Invalid Distribution List name" }, |
| 77 | { ESME_RINVDESTFLAG, "Destination flag is invalid" }, |
| 78 | { ESME_RINVSUBREP, "Invalid submit with replace request" }, |
| 79 | { ESME_RINVESMCLASS, "Invalid esm_class field data" }, |
| 80 | { ESME_RCNTSUBDL, "Cannot Submit to Distribution List" }, |
| 81 | { ESME_RSUBMITFAIL, "submit_sm or submit_multi failed" }, |
| 82 | { ESME_RINVSRCTON, "Invalid Source address TON" }, |
| 83 | { ESME_RINVSRCNPI, "Invalid Sourec address NPI" }, |
| 84 | { ESME_RINVDSTTON, "Invalid Destination address TON" }, |
| 85 | { ESME_RINVDSTNPI, "Invalid Desetination address NPI" }, |
| 86 | { ESME_RINVSYSTYP, "Invalid system_type field" }, |
| 87 | { ESME_RINVREPFLAG, "Invalid replace_if_present field" }, |
| 88 | { ESME_RINVNUMMSGS, "Invalid number of messages" }, |
| 89 | { ESME_RTHROTTLED, "Throttling error (ESME has exceeded message limits)" }, |
| 90 | { ESME_RINVSCHED, "Invalid Scheduled Delivery Time" }, |
| 91 | { ESME_RINVEXPIRY, "Invalid message validity period (Expiry time)" }, |
| 92 | { ESME_RINVDFTMSGID, "Predefined Message Invalid or Not Found" }, |
| 93 | { ESME_RX_T_APPN, "ESME Receiver Temporary App Error Code" }, |
| 94 | { ESME_RX_P_APPN, "ESME Receiver Permanent App Error Code" }, |
| 95 | { ESME_RX_R_APPN, "ESME Receiver Reject Message Error Code" }, |
| 96 | { ESME_RQUERYFAIL, "query_sm request failed" }, |
| 97 | { ESME_RINVOPTPARSTREAM,"Error in the optional part of the PDU Body" }, |
| 98 | { ESME_ROPTPARNOTALLWD, "Optional Parameter not allowed" }, |
| 99 | { ESME_RINVPARLEN, "Invalid Parameter Length" }, |
| 100 | { ESME_RMISSINGOPTPARAM,"Expected Optional Parameter missing" }, |
| 101 | { ESME_RINVOPTPARAMVAL, "Invalid Optional Parameter Value" }, |
| 102 | { ESME_RDELIVERYFAILURE,"Delivery Failure (used for data_sm_resp)" }, |
| 103 | { ESME_RUNKNOWNERR, "Unknown Error" }, |
| 104 | { 0, NULL } |
| 105 | }; |
| 106 | |
| 107 | /*! \brief compare if two SMPP addresses are equal */ |
| 108 | int smpp_addr_eq(const struct osmo_smpp_addr *a, |
| 109 | const struct osmo_smpp_addr *b) |
| 110 | { |
| 111 | if (a->ton == b->ton && |
| 112 | a->npi == b->npi && |
| 113 | !strcmp(a->addr, b->addr)) |
| 114 | return 1; |
| 115 | |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 120 | struct osmo_smpp_acl *smpp_acl_by_system_id(struct smsc *smsc, |
| 121 | const char *sys_id) |
| 122 | { |
| 123 | struct osmo_smpp_acl *acl; |
| 124 | |
| 125 | llist_for_each_entry(acl, &smsc->acl_list, list) { |
| 126 | if (!strcmp(acl->system_id, sys_id)) |
| 127 | return acl; |
| 128 | } |
| 129 | |
| 130 | return NULL; |
| 131 | } |
| 132 | |
| 133 | struct osmo_smpp_acl *smpp_acl_alloc(struct smsc *smsc, const char *sys_id) |
| 134 | { |
| 135 | struct osmo_smpp_acl *acl; |
| 136 | |
| 137 | if (strlen(sys_id) > SMPP_SYS_ID_LEN) |
| 138 | return NULL; |
| 139 | |
| 140 | if (smpp_acl_by_system_id(smsc, sys_id)) |
| 141 | return NULL; |
| 142 | |
| 143 | acl = talloc_zero(smsc, struct osmo_smpp_acl); |
| 144 | if (!acl) |
| 145 | return NULL; |
| 146 | |
| 147 | acl->smsc = smsc; |
| 148 | strcpy(acl->system_id, sys_id); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 149 | INIT_LLIST_HEAD(&acl->route_list); |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 150 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 151 | llist_add_tail(&acl->list, &smsc->acl_list); |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 152 | |
| 153 | return acl; |
| 154 | } |
| 155 | |
| 156 | void smpp_acl_delete(struct osmo_smpp_acl *acl) |
| 157 | { |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 158 | struct osmo_smpp_route *r, *r2; |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 159 | |
| 160 | llist_del(&acl->list); |
| 161 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 162 | /* kill any active ESMEs */ |
| 163 | if (acl->esme) { |
| 164 | struct osmo_esme *esme = acl->esme; |
| 165 | osmo_fd_unregister(&esme->wqueue.bfd); |
| 166 | close(esme->wqueue.bfd.fd); |
| 167 | esme->wqueue.bfd.fd = -1; |
| 168 | esme->acl = NULL; |
| 169 | smpp_esme_put(esme); |
| 170 | } |
| 171 | |
| 172 | /* delete all routes for this ACL */ |
| 173 | llist_for_each_entry_safe(r, r2, &acl->route_list, list) { |
| 174 | llist_del(&r->list); |
| 175 | llist_del(&r->global_list); |
| 176 | talloc_free(r); |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | talloc_free(acl); |
| 180 | } |
| 181 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 182 | static struct osmo_smpp_route *route_alloc(struct osmo_smpp_acl *acl) |
| 183 | { |
| 184 | struct osmo_smpp_route *r; |
| 185 | |
| 186 | r = talloc_zero(acl, struct osmo_smpp_route); |
| 187 | if (!r) |
| 188 | return NULL; |
| 189 | |
| 190 | llist_add_tail(&r->list, &acl->route_list); |
| 191 | llist_add_tail(&r->global_list, &acl->smsc->route_list); |
| 192 | |
| 193 | return r; |
| 194 | } |
| 195 | |
| 196 | int smpp_route_pfx_add(struct osmo_smpp_acl *acl, |
| 197 | const struct osmo_smpp_addr *pfx) |
| 198 | { |
| 199 | struct osmo_smpp_route *r; |
| 200 | |
| 201 | llist_for_each_entry(r, &acl->route_list, list) { |
| 202 | if (r->type == SMPP_ROUTE_PREFIX && |
| 203 | smpp_addr_eq(&r->u.prefix, pfx)) |
| 204 | return -EEXIST; |
| 205 | } |
| 206 | |
| 207 | r = route_alloc(acl); |
| 208 | if (!r) |
| 209 | return -ENOMEM; |
| 210 | r->type = SMPP_ROUTE_PREFIX; |
| 211 | r->acl = acl; |
| 212 | memcpy(&r->u.prefix, pfx, sizeof(r->u.prefix)); |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | int smpp_route_pfx_del(struct osmo_smpp_acl *acl, |
| 218 | const struct osmo_smpp_addr *pfx) |
| 219 | { |
| 220 | struct osmo_smpp_route *r, *r2; |
| 221 | |
| 222 | llist_for_each_entry_safe(r, r2, &acl->route_list, list) { |
| 223 | if (r->type == SMPP_ROUTE_PREFIX && |
| 224 | smpp_addr_eq(&r->u.prefix, pfx)) { |
| 225 | llist_del(&r->list); |
| 226 | talloc_free(r); |
| 227 | return 0; |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | return -ENODEV; |
| 232 | } |
| 233 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 234 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 235 | /*! \brief increaes the use/reference count */ |
| 236 | void smpp_esme_get(struct osmo_esme *esme) |
| 237 | { |
| 238 | esme->use++; |
| 239 | } |
| 240 | |
| 241 | static void esme_destroy(struct osmo_esme *esme) |
| 242 | { |
| 243 | osmo_wqueue_clear(&esme->wqueue); |
| 244 | if (esme->wqueue.bfd.fd >= 0) { |
| 245 | osmo_fd_unregister(&esme->wqueue.bfd); |
| 246 | close(esme->wqueue.bfd.fd); |
| 247 | } |
| 248 | llist_del(&esme->list); |
| 249 | talloc_free(esme); |
| 250 | } |
| 251 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 252 | static uint32_t esme_inc_seq_nr(struct osmo_esme *esme) |
| 253 | { |
| 254 | esme->own_seq_nr++; |
| 255 | if (esme->own_seq_nr > 0x7fffffff) |
| 256 | esme->own_seq_nr = 1; |
| 257 | |
| 258 | return esme->own_seq_nr; |
| 259 | } |
| 260 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 261 | /*! \brief decrease the use/reference count, free if it is 0 */ |
| 262 | void smpp_esme_put(struct osmo_esme *esme) |
| 263 | { |
| 264 | esme->use--; |
| 265 | if (esme->use <= 0) |
| 266 | esme_destroy(esme); |
| 267 | } |
| 268 | |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 269 | static struct osmo_esme * |
| 270 | esme_by_system_id(const struct smsc *smsc, char *system_id) |
| 271 | { |
| 272 | struct osmo_esme *e; |
| 273 | |
| 274 | llist_for_each_entry(e, &smsc->esme_list, list) { |
| 275 | if (!strcmp(e->system_id, system_id)) |
| 276 | return e; |
| 277 | } |
| 278 | return NULL; |
| 279 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 280 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 281 | /*! \brief try to find a SMPP route (ESME) for given destination */ |
| 282 | struct osmo_esme * |
| 283 | smpp_route(const struct smsc *smsc, const struct osmo_smpp_addr *dest) |
| 284 | { |
| 285 | struct osmo_smpp_route *r; |
| 286 | struct osmo_smpp_acl *acl = NULL; |
| 287 | |
| 288 | DEBUGP(DSMPP, "Looking up route for (%u/%u/%s)\n", |
| 289 | dest->ton, dest->npi, dest->addr); |
| 290 | |
| 291 | /* search for a specific route */ |
| 292 | llist_for_each_entry(r, &smsc->route_list, global_list) { |
| 293 | switch (r->type) { |
| 294 | case SMPP_ROUTE_PREFIX: |
| 295 | DEBUGP(DSMPP, "Checking prefix route (%u/%u/%s)->%s\n", |
| 296 | r->u.prefix.ton, r->u.prefix.npi, r->u.prefix.addr, |
| 297 | r->acl->system_id); |
| 298 | if (r->u.prefix.ton == dest->ton && |
| 299 | r->u.prefix.npi == dest->npi && |
| 300 | !strncmp(r->u.prefix.addr, dest->addr, |
| 301 | strlen(r->u.prefix.addr))) { |
| 302 | DEBUGP(DSMPP, "Found prefix route ACL\n"); |
| 303 | acl = r->acl; |
| 304 | } |
| 305 | break; |
| 306 | default: |
| 307 | break; |
| 308 | } |
| 309 | |
| 310 | if (acl) |
| 311 | break; |
| 312 | } |
| 313 | |
| 314 | if (!acl) { |
| 315 | /* check for default route */ |
| 316 | if (smsc->def_route) { |
| 317 | DEBUGP(DSMPP, "Using existing default route\n"); |
| 318 | acl = smsc->def_route; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | if (acl && acl->esme) { |
| 323 | struct osmo_esme *esme; |
| 324 | DEBUGP(DSMPP, "ACL even has ESME, we can route to it!\n"); |
| 325 | esme = acl->esme; |
| 326 | if (esme->bind_flags & ESME_BIND_RX) |
| 327 | return esme; |
| 328 | else |
| 329 | LOGP(DSMPP, LOGL_NOTICE, "[%s] is matching route, " |
| 330 | "but not bound for Rx, discarding MO SMS\n", |
| 331 | esme->system_id); |
| 332 | } |
| 333 | |
| 334 | return NULL; |
| 335 | } |
| 336 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 337 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 338 | /*! \brief initialize the libsmpp34 data structure for a response */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 339 | #define INIT_RESP(type, resp, req) { \ |
| 340 | memset((resp), 0, sizeof(*(resp))); \ |
| 341 | (resp)->command_length = 0; \ |
| 342 | (resp)->command_id = type; \ |
| 343 | (resp)->command_status = ESME_ROK; \ |
| 344 | (resp)->sequence_number = (req)->sequence_number; \ |
| 345 | } |
| 346 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 347 | /*! \brief pack a libsmpp34 data strcutrure and send it to the ESME */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 348 | #define PACK_AND_SEND(esme, ptr) pack_and_send(esme, (ptr)->command_id, ptr) |
| 349 | static int pack_and_send(struct osmo_esme *esme, uint32_t type, void *ptr) |
| 350 | { |
| 351 | struct msgb *msg = msgb_alloc(4096, "SMPP_Tx"); |
| 352 | int rc, rlen; |
| 353 | if (!msg) |
| 354 | return -ENOMEM; |
| 355 | |
| 356 | rc = smpp34_pack(type, msg->tail, msgb_tailroom(msg), &rlen, ptr); |
| 357 | if (rc != 0) { |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 358 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error during smpp34_pack(): %s\n", |
| 359 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 360 | msgb_free(msg); |
| 361 | return -EINVAL; |
| 362 | } |
| 363 | msgb_put(msg, rlen); |
| 364 | |
| 365 | return osmo_wqueue_enqueue(&esme->wqueue, msg); |
| 366 | } |
| 367 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 368 | /*! \brief transmit a generic NACK to a remote ESME */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 369 | static int smpp_tx_gen_nack(struct osmo_esme *esme, uint32_t seq, uint32_t status) |
| 370 | { |
| 371 | struct generic_nack_t nack; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 372 | char buf[SMALL_BUFF]; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 373 | |
| 374 | nack.command_length = 0; |
| 375 | nack.command_id = GENERIC_NACK; |
| 376 | nack.sequence_number = seq; |
| 377 | nack.command_status = status; |
| 378 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 379 | LOGP(DSMPP, LOGL_ERROR, "[%s] Tx GENERIC NACK: %s\n", |
| 380 | esme->system_id, str_command_status(status, buf)); |
| 381 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 382 | return PACK_AND_SEND(esme, &nack); |
| 383 | } |
| 384 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 385 | /*! \brief retrieve SMPP command ID from a msgb */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 386 | static inline uint32_t smpp_msgb_cmdid(struct msgb *msg) |
| 387 | { |
| 388 | uint8_t *tmp = msgb_data(msg) + 4; |
| 389 | return ntohl(*(uint32_t *)tmp); |
| 390 | } |
| 391 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 392 | /*! \brief retrieve SMPP sequence number from a msgb */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 393 | static inline uint32_t smpp_msgb_seq(struct msgb *msg) |
| 394 | { |
| 395 | uint8_t *tmp = msgb_data(msg); |
| 396 | return ntohl(*(uint32_t *)tmp); |
| 397 | } |
| 398 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 399 | /*! \brief handle an incoming SMPP generic NACK */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 400 | static int smpp_handle_gen_nack(struct osmo_esme *esme, struct msgb *msg) |
| 401 | { |
| 402 | struct generic_nack_t nack; |
| 403 | char buf[SMALL_BUFF]; |
| 404 | int rc; |
| 405 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 406 | SMPP34_UNPACK(rc, GENERIC_NACK, &nack, msgb_data(msg), |
| 407 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 408 | if (rc < 0) { |
| 409 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 410 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 411 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 412 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 413 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 414 | LOGP(DSMPP, LOGL_ERROR, "[%s] Rx GENERIC NACK: %s\n", |
| 415 | esme->system_id, str_command_status(nack.command_status, buf)); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 416 | |
| 417 | return 0; |
| 418 | } |
| 419 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 420 | static int _process_bind(struct osmo_esme *esme, uint8_t if_version, |
| 421 | uint32_t bind_flags, const char *sys_id, |
| 422 | const char *passwd) |
| 423 | { |
| 424 | struct osmo_smpp_acl *acl; |
| 425 | |
| 426 | if (if_version != SMPP_VERSION) |
| 427 | return ESME_RSYSERR; |
| 428 | |
| 429 | if (esme->bind_flags) |
| 430 | return ESME_RALYBND; |
| 431 | |
| 432 | esme->smpp_version = if_version; |
| 433 | snprintf(esme->system_id, sizeof(esme->system_id), "%s", sys_id); |
| 434 | |
| 435 | acl = smpp_acl_by_system_id(esme->smsc, esme->system_id); |
| 436 | if (!esme->smsc->accept_all) { |
| 437 | if (!acl) { |
| 438 | /* This system is unknown */ |
| 439 | return ESME_RINVSYSID; |
| 440 | } else { |
| 441 | if (strlen(acl->passwd) && |
| 442 | strcmp(acl->passwd, passwd)) { |
| 443 | return ESME_RINVPASWD; |
| 444 | } |
| 445 | } |
| 446 | } |
| 447 | if (acl) { |
| 448 | esme->acl = acl; |
| 449 | acl->esme = esme; |
| 450 | } |
| 451 | |
| 452 | esme->bind_flags = bind_flags; |
| 453 | |
| 454 | return ESME_ROK; |
| 455 | } |
| 456 | |
| 457 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 458 | /*! \brief handle an incoming SMPP BIND RECEIVER */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 459 | static int smpp_handle_bind_rx(struct osmo_esme *esme, struct msgb *msg) |
| 460 | { |
| 461 | struct bind_receiver_t bind; |
| 462 | struct bind_receiver_resp_t bind_r; |
| 463 | int rc; |
| 464 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 465 | SMPP34_UNPACK(rc, BIND_RECEIVER, &bind, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 466 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 467 | if (rc < 0) { |
| 468 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 469 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 470 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 471 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 472 | |
| 473 | INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind); |
| 474 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 475 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Rx from (Version %02x)\n", |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 476 | bind.system_id, bind.interface_version); |
| 477 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 478 | rc = _process_bind(esme, bind.interface_version, ESME_BIND_RX, |
| 479 | (const char *)bind.system_id, (const char *)bind.password); |
| 480 | bind_r.command_status = rc; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 481 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 482 | return PACK_AND_SEND(esme, &bind_r); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 483 | } |
| 484 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 485 | /*! \brief handle an incoming SMPP BIND TRANSMITTER */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 486 | static int smpp_handle_bind_tx(struct osmo_esme *esme, struct msgb *msg) |
| 487 | { |
| 488 | struct bind_transmitter_t bind; |
| 489 | struct bind_transmitter_resp_t bind_r; |
| 490 | struct tlv_t tlv; |
| 491 | int rc; |
| 492 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 493 | SMPP34_UNPACK(rc, BIND_TRANSMITTER, &bind, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 494 | msgb_length(msg)); |
| 495 | if (rc < 0) { |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 496 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 497 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 498 | return rc; |
| 499 | } |
| 500 | |
| 501 | INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind); |
| 502 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 503 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Tx (Version %02x)\n", |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 504 | bind.system_id, bind.interface_version); |
| 505 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 506 | rc = _process_bind(esme, bind.interface_version, ESME_BIND_TX, |
| 507 | (const char *)bind.system_id, (const char *)bind.password); |
| 508 | bind_r.command_status = rc; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 509 | |
| 510 | /* build response */ |
| 511 | snprintf((char *)bind_r.system_id, sizeof(bind_r.system_id), "%s", |
| 512 | esme->smsc->system_id); |
| 513 | |
| 514 | /* add interface version TLV */ |
| 515 | tlv.tag = TLVID_sc_interface_version; |
| 516 | tlv.length = sizeof(uint8_t); |
| 517 | tlv.value.val16 = esme->smpp_version; |
| 518 | build_tlv(&bind_r.tlv, &tlv); |
| 519 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 520 | return PACK_AND_SEND(esme, &bind_r); |
| 521 | } |
| 522 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 523 | /*! \brief handle an incoming SMPP BIND TRANSCEIVER */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 524 | static int smpp_handle_bind_trx(struct osmo_esme *esme, struct msgb *msg) |
| 525 | { |
| 526 | struct bind_transceiver_t bind; |
| 527 | struct bind_transceiver_resp_t bind_r; |
| 528 | int rc; |
| 529 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 530 | SMPP34_UNPACK(rc, BIND_TRANSCEIVER, &bind, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 531 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 532 | if (rc < 0) { |
| 533 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 534 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 535 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 536 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 537 | |
| 538 | INIT_RESP(BIND_TRANSMITTER_RESP, &bind_r, &bind); |
| 539 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 540 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx BIND Trx (Version %02x)\n", |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 541 | bind.system_id, bind.interface_version); |
| 542 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 543 | rc = _process_bind(esme, bind.interface_version, ESME_BIND_RX|ESME_BIND_TX, |
| 544 | (const char *)bind.system_id, (const char *)bind.password); |
| 545 | bind_r.command_status = rc; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 546 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 547 | return PACK_AND_SEND(esme, &bind_r); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 548 | } |
| 549 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 550 | /*! \brief handle an incoming SMPP UNBIND */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 551 | static int smpp_handle_unbind(struct osmo_esme *esme, struct msgb *msg) |
| 552 | { |
| 553 | struct unbind_t unbind; |
| 554 | struct unbind_resp_t unbind_r; |
| 555 | int rc; |
| 556 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 557 | SMPP34_UNPACK(rc, UNBIND, &unbind, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 558 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 559 | if (rc < 0) { |
| 560 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 561 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 562 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 563 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 564 | |
| 565 | INIT_RESP(UNBIND_RESP, &unbind_r, &unbind); |
| 566 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 567 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx UNBIND\n", esme->system_id); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 568 | |
| 569 | if (esme->bind_flags == 0) { |
| 570 | unbind_r.command_status = ESME_RINVBNDSTS; |
| 571 | goto err; |
| 572 | } |
| 573 | |
| 574 | esme->bind_flags = 0; |
| 575 | err: |
| 576 | return PACK_AND_SEND(esme, &unbind_r); |
| 577 | } |
| 578 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 579 | /*! \brief handle an incoming SMPP ENQUIRE LINK */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 580 | static int smpp_handle_enq_link(struct osmo_esme *esme, struct msgb *msg) |
| 581 | { |
| 582 | struct enquire_link_t enq; |
| 583 | struct enquire_link_resp_t enq_r; |
| 584 | int rc; |
| 585 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 586 | SMPP34_UNPACK(rc, ENQUIRE_LINK, &enq, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 587 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 588 | if (rc < 0) { |
| 589 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 590 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 591 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 592 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 593 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 594 | LOGP(DSMPP, LOGL_DEBUG, "[%s] Rx Enquire Link\n", esme->system_id); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 595 | |
| 596 | INIT_RESP(ENQUIRE_LINK_RESP, &enq_r, &enq); |
| 597 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 598 | LOGP(DSMPP, LOGL_DEBUG, "[%s] Tx Enquire Link Response\n", esme->system_id); |
| 599 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 600 | return PACK_AND_SEND(esme, &enq_r); |
| 601 | } |
| 602 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 603 | /*! \brief send a SUBMIT-SM RESPONSE to a remote ESME */ |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 604 | int smpp_tx_submit_r(struct osmo_esme *esme, uint32_t sequence_nr, |
| 605 | uint32_t command_status, char *msg_id) |
| 606 | { |
| 607 | struct submit_sm_resp_t submit_r; |
| 608 | |
| 609 | memset(&submit_r, 0, sizeof(submit_r)); |
| 610 | submit_r.command_length = 0; |
| 611 | submit_r.command_id = SUBMIT_SM_RESP; |
| 612 | submit_r.command_status = command_status; |
| 613 | submit_r.sequence_number= sequence_nr; |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 614 | snprintf((char *) submit_r.message_id, sizeof(submit_r.message_id), "%s", msg_id); |
Harald Welte | 4341309 | 2012-11-08 19:44:08 +0100 | [diff] [blame] | 615 | |
| 616 | return PACK_AND_SEND(esme, &submit_r); |
| 617 | } |
| 618 | |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 619 | static const struct value_string smpp_avail_strs[] = { |
| 620 | { 0, "Available" }, |
| 621 | { 1, "Denied" }, |
| 622 | { 2, "Unavailable" }, |
| 623 | { 0, NULL } |
| 624 | }; |
| 625 | |
| 626 | /*! \brief send an ALERT_NOTIFICATION to a remote ESME */ |
| 627 | int smpp_tx_alert(struct osmo_esme *esme, uint8_t ton, uint8_t npi, |
| 628 | const char *addr, uint8_t avail_status) |
| 629 | { |
| 630 | struct alert_notification_t alert; |
| 631 | struct tlv_t tlv; |
| 632 | |
| 633 | memset(&alert, 0, sizeof(alert)); |
| 634 | alert.command_length = 0; |
| 635 | alert.command_id = ALERT_NOTIFICATION; |
| 636 | alert.command_status = ESME_ROK; |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 637 | alert.sequence_number = esme_inc_seq_nr(esme); |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 638 | alert.source_addr_ton = ton; |
| 639 | alert.source_addr_npi = npi; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 640 | snprintf((char *)alert.source_addr, sizeof(alert.source_addr), "%s", addr); |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 641 | |
| 642 | tlv.tag = TLVID_ms_availability_status; |
| 643 | tlv.length = sizeof(uint8_t); |
| 644 | tlv.value.val08 = avail_status; |
| 645 | build_tlv(&alert.tlv, &tlv); |
| 646 | |
| 647 | LOGP(DSMPP, LOGL_DEBUG, "[%s] Tx ALERT_NOTIFICATION (%s/%u/%u): %s\n", |
| 648 | esme->system_id, alert.source_addr, alert.source_addr_ton, |
| 649 | alert.source_addr_npi, |
| 650 | get_value_string(smpp_avail_strs, avail_status)); |
| 651 | |
| 652 | return PACK_AND_SEND(esme, &alert); |
| 653 | } |
| 654 | |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 655 | /* \brief send a DELIVER-SM message to given ESME */ |
| 656 | int smpp_tx_deliver(struct osmo_esme *esme, struct deliver_sm_t *deliver) |
| 657 | { |
| 658 | deliver->sequence_number = esme_inc_seq_nr(esme); |
| 659 | |
| 660 | return PACK_AND_SEND(esme, deliver); |
| 661 | } |
| 662 | |
| 663 | /*! \brief handle an incoming SMPP DELIVER-SM RESPONSE */ |
| 664 | static int smpp_handle_deliver_resp(struct osmo_esme *esme, struct msgb *msg) |
| 665 | { |
| 666 | struct deliver_sm_resp_t deliver_r; |
| 667 | int rc; |
| 668 | |
| 669 | memset(&deliver_r, 0, sizeof(deliver_r)); |
| 670 | SMPP34_UNPACK(rc, DELIVER_SM_RESP, &deliver_r, msgb_data(msg), |
| 671 | msgb_length(msg)); |
| 672 | if (rc < 0) { |
| 673 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 674 | esme->system_id, smpp34_strerror); |
| 675 | return rc; |
| 676 | } |
| 677 | |
| 678 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx DELIVER-SM RESP (%s)\n", |
| 679 | esme->system_id, get_value_string(smpp_status_strs, |
| 680 | deliver_r.command_status)); |
| 681 | |
| 682 | return 0; |
| 683 | } |
| 684 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 685 | /*! \brief handle an incoming SMPP SUBMIT-SM */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 686 | static int smpp_handle_submit(struct osmo_esme *esme, struct msgb *msg) |
| 687 | { |
| 688 | struct submit_sm_t submit; |
| 689 | struct submit_sm_resp_t submit_r; |
| 690 | int rc; |
| 691 | |
Harald Welte | aecf4b9 | 2012-11-08 22:12:45 +0100 | [diff] [blame] | 692 | memset(&submit, 0, sizeof(submit)); |
| 693 | SMPP34_UNPACK(rc, SUBMIT_SM, &submit, msgb_data(msg), |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 694 | msgb_length(msg)); |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 695 | if (rc < 0) { |
| 696 | LOGP(DSMPP, LOGL_ERROR, "[%s] Error in smpp34_unpack():%s\n", |
| 697 | esme->system_id, smpp34_strerror); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 698 | return rc; |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 699 | } |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 700 | |
| 701 | INIT_RESP(SUBMIT_SM_RESP, &submit_r, &submit); |
| 702 | |
| 703 | if (!(esme->bind_flags & ESME_BIND_TX)) { |
| 704 | submit_r.command_status = ESME_RINVBNDSTS; |
| 705 | return PACK_AND_SEND(esme, &submit_r); |
| 706 | } |
| 707 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 708 | LOGP(DSMPP, LOGL_INFO, "[%s] Rx SUBMIT-SM (%s/%u/%u)\n", |
| 709 | esme->system_id, submit.destination_addr, |
| 710 | submit.dest_addr_ton, submit.dest_addr_npi); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 711 | |
| 712 | INIT_RESP(SUBMIT_SM_RESP, &submit_r, &submit); |
| 713 | |
| 714 | rc = handle_smpp_submit(esme, &submit, &submit_r); |
| 715 | if (rc == 0) |
| 716 | return PACK_AND_SEND(esme, &submit_r); |
| 717 | |
| 718 | return rc; |
| 719 | } |
| 720 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 721 | /*! \brief one complete SMPP PDU from the ESME has been received */ |
Holger Hans Peter Freyther | 2edde4a | 2013-04-29 09:11:02 +0200 | [diff] [blame^] | 722 | static int smpp_pdu_rx(struct osmo_esme *esme, struct msgb *msg __uses) |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 723 | { |
| 724 | uint32_t cmd_id = smpp_msgb_cmdid(msg); |
| 725 | int rc = 0; |
| 726 | |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 727 | LOGP(DSMPP, LOGL_DEBUG, "[%s] smpp_pdu_rx(%s)\n", esme->system_id, |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 728 | osmo_hexdump(msgb_data(msg), msgb_length(msg))); |
| 729 | |
| 730 | switch (cmd_id) { |
| 731 | case GENERIC_NACK: |
| 732 | rc = smpp_handle_gen_nack(esme, msg); |
| 733 | break; |
| 734 | case BIND_RECEIVER: |
| 735 | rc = smpp_handle_bind_rx(esme, msg); |
| 736 | break; |
| 737 | case BIND_TRANSMITTER: |
| 738 | rc = smpp_handle_bind_tx(esme, msg); |
| 739 | break; |
| 740 | case BIND_TRANSCEIVER: |
| 741 | rc = smpp_handle_bind_trx(esme, msg); |
| 742 | break; |
| 743 | case UNBIND: |
| 744 | rc = smpp_handle_unbind(esme, msg); |
| 745 | break; |
| 746 | case ENQUIRE_LINK: |
| 747 | rc = smpp_handle_enq_link(esme, msg); |
| 748 | break; |
| 749 | case SUBMIT_SM: |
| 750 | rc = smpp_handle_submit(esme, msg); |
| 751 | break; |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 752 | case DELIVER_SM_RESP: |
| 753 | rc = smpp_handle_deliver_resp(esme, msg); |
| 754 | break; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 755 | case DELIVER_SM: |
| 756 | break; |
| 757 | case DATA_SM: |
| 758 | break; |
| 759 | case CANCEL_SM: |
| 760 | case QUERY_SM: |
| 761 | case REPLACE_SM: |
| 762 | case SUBMIT_MULTI: |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 763 | LOGP(DSMPP, LOGL_NOTICE, "[%s] Unimplemented PDU Commmand " |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 764 | "0x%08x\n", esme->system_id, cmd_id); |
| 765 | break; |
| 766 | default: |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 767 | LOGP(DSMPP, LOGL_ERROR, "[%s] Unknown PDU Command 0x%08x\n", |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 768 | esme->system_id, cmd_id); |
| 769 | rc = smpp_tx_gen_nack(esme, smpp_msgb_seq(msg), ESME_RINVCMDID); |
| 770 | break; |
| 771 | } |
| 772 | |
| 773 | return rc; |
| 774 | } |
| 775 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 776 | /* !\brief call-back when per-ESME TCP socket has some data to be read */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 777 | static int esme_link_read_cb(struct osmo_fd *ofd) |
| 778 | { |
| 779 | struct osmo_esme *esme = ofd->data; |
| 780 | uint32_t len; |
| 781 | uint8_t *lenptr = (uint8_t *) &len; |
| 782 | uint8_t *cur; |
| 783 | struct msgb *msg; |
| 784 | int rdlen; |
| 785 | int rc; |
| 786 | |
| 787 | switch (esme->read_state) { |
| 788 | case READ_ST_IN_LEN: |
| 789 | rdlen = sizeof(uint32_t) - esme->read_idx; |
| 790 | rc = read(ofd->fd, lenptr + esme->read_idx, rdlen); |
| 791 | if (rc < 0) { |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 792 | LOGP(DSMPP, LOGL_ERROR, "[%s] read returned %d\n", |
| 793 | esme->system_id, rc); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 794 | } else if (rc == 0) { |
| 795 | goto dead_socket; |
| 796 | } else |
| 797 | esme->read_idx += rc; |
| 798 | if (esme->read_idx >= sizeof(uint32_t)) { |
| 799 | esme->read_len = ntohl(len); |
| 800 | msg = msgb_alloc(esme->read_len, "SMPP Rx"); |
| 801 | if (!msg) |
| 802 | return -ENOMEM; |
| 803 | esme->read_msg = msg; |
| 804 | cur = msgb_put(msg, sizeof(uint32_t)); |
| 805 | memcpy(cur, lenptr, sizeof(uint32_t)); |
| 806 | esme->read_state = READ_ST_IN_MSG; |
| 807 | esme->read_idx = sizeof(uint32_t); |
| 808 | } |
| 809 | break; |
| 810 | case READ_ST_IN_MSG: |
| 811 | msg = esme->read_msg; |
| 812 | rdlen = esme->read_len - esme->read_idx; |
| 813 | rc = read(ofd->fd, msg->tail, OSMO_MIN(rdlen, msgb_tailroom(msg))); |
| 814 | if (rc < 0) { |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 815 | LOGP(DSMPP, LOGL_ERROR, "[%s] read returned %d\n", |
| 816 | esme->system_id, rc); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 817 | } else if (rc == 0) { |
| 818 | goto dead_socket; |
| 819 | } else { |
| 820 | esme->read_idx += rc; |
| 821 | msgb_put(msg, rc); |
| 822 | } |
| 823 | |
| 824 | if (esme->read_idx >= esme->read_len) { |
| 825 | rc = smpp_pdu_rx(esme, esme->read_msg); |
Holger Hans Peter Freyther | 2edde4a | 2013-04-29 09:11:02 +0200 | [diff] [blame^] | 826 | msgb_free(esme->read_msg); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 827 | esme->read_msg = NULL; |
| 828 | esme->read_idx = 0; |
| 829 | esme->read_len = 0; |
| 830 | esme->read_state = READ_ST_IN_LEN; |
| 831 | } |
| 832 | break; |
| 833 | } |
| 834 | |
| 835 | return 0; |
| 836 | dead_socket: |
| 837 | msgb_free(esme->read_msg); |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 838 | osmo_fd_unregister(&esme->wqueue.bfd); |
| 839 | close(esme->wqueue.bfd.fd); |
| 840 | esme->wqueue.bfd.fd = -1; |
| 841 | smpp_esme_put(esme); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 842 | |
| 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | /* call-back of write queue once it wishes to write a message to the socket */ |
| 847 | static void esme_link_write_cb(struct osmo_fd *ofd, struct msgb *msg) |
| 848 | { |
| 849 | struct osmo_esme *esme = ofd->data; |
| 850 | int rc; |
| 851 | |
| 852 | rc = write(ofd->fd, msgb_data(msg), msgb_length(msg)); |
| 853 | if (rc == 0) { |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 854 | osmo_fd_unregister(&esme->wqueue.bfd); |
| 855 | close(esme->wqueue.bfd.fd); |
| 856 | esme->wqueue.bfd.fd = -1; |
| 857 | smpp_esme_put(esme); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 858 | } else if (rc < msgb_length(msg)) { |
Harald Welte | 6bc15a1 | 2012-11-09 13:02:49 +0100 | [diff] [blame] | 859 | LOGP(DSMPP, LOGL_ERROR, "[%s] Short write\n", esme->system_id); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 860 | return; |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | /* callback for already-accepted new TCP socket */ |
| 865 | static int link_accept_cb(struct smsc *smsc, int fd, |
| 866 | struct sockaddr_storage *s, socklen_t s_len) |
| 867 | { |
| 868 | struct osmo_esme *esme = talloc_zero(smsc, struct osmo_esme); |
| 869 | if (!esme) |
| 870 | return -ENOMEM; |
| 871 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 872 | smpp_esme_get(esme); |
Harald Welte | 475cb61 | 2012-11-09 12:51:44 +0100 | [diff] [blame] | 873 | esme->own_seq_nr = rand(); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 874 | esme_inc_seq_nr(esme); |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 875 | esme->smsc = smsc; |
| 876 | osmo_wqueue_init(&esme->wqueue, 10); |
| 877 | esme->wqueue.bfd.fd = fd; |
| 878 | esme->wqueue.bfd.data = esme; |
| 879 | esme->wqueue.bfd.when = BSC_FD_READ; |
| 880 | osmo_fd_register(&esme->wqueue.bfd); |
| 881 | |
| 882 | esme->wqueue.read_cb = esme_link_read_cb; |
| 883 | esme->wqueue.write_cb = esme_link_write_cb; |
| 884 | |
| 885 | esme->sa_len = OSMO_MIN(sizeof(esme->sa), s_len); |
| 886 | memcpy(&esme->sa, s, esme->sa_len); |
| 887 | |
| 888 | llist_add_tail(&esme->list, &smsc->esme_list); |
| 889 | |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | /* callback of listening TCP socket */ |
| 894 | static int smsc_fd_cb(struct osmo_fd *ofd, unsigned int what) |
| 895 | { |
| 896 | int rc; |
| 897 | struct sockaddr_storage sa; |
| 898 | socklen_t sa_len = sizeof(sa); |
| 899 | |
| 900 | rc = accept(ofd->fd, (struct sockaddr *)&sa, &sa_len); |
| 901 | if (rc < 0) { |
| 902 | LOGP(DSMPP, LOGL_ERROR, "Accept returns %d (%s)\n", |
| 903 | rc, strerror(errno)); |
| 904 | return rc; |
| 905 | } |
| 906 | return link_accept_cb(ofd->data, rc, &sa, sa_len); |
| 907 | } |
| 908 | |
Harald Welte | bf6d98e | 2012-11-08 20:11:05 +0100 | [diff] [blame] | 909 | /*! \brief Initialize the SMSC-side SMPP implementation */ |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 910 | int smpp_smsc_init(struct smsc *smsc, uint16_t port) |
| 911 | { |
| 912 | int rc; |
| 913 | |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 914 | /* default port for SMPP */ |
| 915 | if (port == 0) |
| 916 | port = 2775; |
| 917 | |
| 918 | /* This will not work if we were to actually ever use FD 0 |
| 919 | * (stdin) for this ... */ |
| 920 | if (smsc->listen_ofd.fd <= 0) { |
| 921 | INIT_LLIST_HEAD(&smsc->esme_list); |
| 922 | INIT_LLIST_HEAD(&smsc->acl_list); |
Harald Welte | 691ce33 | 2012-11-23 19:02:37 +0100 | [diff] [blame] | 923 | INIT_LLIST_HEAD(&smsc->route_list); |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 924 | smsc->listen_ofd.data = smsc; |
| 925 | smsc->listen_ofd.cb = smsc_fd_cb; |
| 926 | } else { |
| 927 | close(smsc->listen_ofd.fd); |
| 928 | osmo_fd_unregister(&smsc->listen_ofd); |
| 929 | } |
| 930 | |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 931 | rc = osmo_sock_init_ofd(&smsc->listen_ofd, AF_UNSPEC, SOCK_STREAM, |
Harald Welte | b7dd661 | 2012-11-20 22:22:04 +0100 | [diff] [blame] | 932 | IPPROTO_TCP, NULL, port, |
| 933 | OSMO_SOCK_F_BIND); |
| 934 | |
| 935 | /* if there is an error, try to re-bind to the old port */ |
| 936 | if (rc < 0) { |
| 937 | rc = osmo_sock_init_ofd(&smsc->listen_ofd, AF_UNSPEC, |
| 938 | SOCK_STREAM, IPPROTO_TCP, NULL, |
| 939 | smsc->listen_port, OSMO_SOCK_F_BIND); |
| 940 | } else |
| 941 | smsc->listen_port = port; |
Harald Welte | 2dba82d | 2012-11-08 16:14:37 +0100 | [diff] [blame] | 942 | |
| 943 | return rc; |
| 944 | } |