libosmogb  1.6.0
Osmocom Gb library
gprs_ns2_internal.h
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1 
3 #pragma once
4 
5 #include <stdbool.h>
6 #include <stdint.h>
7 
8 #include <osmocom/core/logging.h>
10 #include <osmocom/gprs/gprs_ns2.h>
11 
12 #define LOGNSE(nse, lvl, fmt, args ...) \
13  LOGP(DLNS, lvl, "NSE(%05u) " fmt, (nse)->nsei, ## args)
14 
15 #define LOGBIND(bind, lvl, fmt, args ...) \
16  LOGP(DLNS, lvl, "BIND(%s) " fmt, (bind)->name, ## args)
17 
18 #define LOGNSVC_SS(ss, nsvc, lvl, fmt, args ...) \
19  do { \
20  if ((nsvc)->nsvci_is_valid) { \
21  LOGP(ss, lvl, "NSE(%05u)-NSVC(%05u) " fmt, \
22  (nsvc)->nse->nsei, (nsvc)->nsvci, ## args); \
23  } else { \
24  LOGP(ss, lvl, "NSE(%05u)-NSVC(none) " fmt, \
25  (nsvc)->nse->nsei, ## args); \
26  } \
27  } while (0)
28 
29 #define LOGNSVC(nsvc, lvl, fmt, args ...) \
30  LOGNSVC_SS(DLNS, nsvc, lvl, fmt, ## args)
31 
32 #define LOG_NS_SIGNAL(nsvc, direction, pdu_type, lvl, fmt, args ...) \
33  LOGNSVC_SS(DLNSSIGNAL, nsvc, lvl, "%s %s" fmt, direction, get_value_string(gprs_ns_pdu_strings, pdu_type), ## args)
34 
35 #define LOG_NS_DATA(nsvc, direction, pdu_type, lvl, fmt, args ...) \
36  LOGNSVC_SS(DLNSDATA, nsvc, lvl, "%s %s" fmt, direction, get_value_string(gprs_ns_pdu_strings, pdu_type), ## args)
37 
38 #define LOG_NS_RX_SIGNAL(nsvc, pdu_type) LOG_NS_SIGNAL(nsvc, "Rx", pdu_type, LOGL_INFO, "\n")
39 #define LOG_NS_TX_SIGNAL(nsvc, pdu_type) LOG_NS_SIGNAL(nsvc, "Tx", pdu_type, LOGL_INFO, "\n")
40 
41 #define RATE_CTR_INC_NS(nsvc, ctr) \
42  do { \
43  struct gprs_ns2_vc *_nsvc = (nsvc); \
44  rate_ctr_inc(rate_ctr_group_get_ctr(_nsvc->ctrg, ctr)); \
45  rate_ctr_inc(rate_ctr_group_get_ctr(_nsvc->nse->ctrg, ctr)); \
46  } while (0)
47 
48 #define RATE_CTR_ADD_NS(nsvc, ctr, val) \
49  do { \
50  struct gprs_ns2_vc *_nsvc = (nsvc); \
51  rate_ctr_add(rate_ctr_group_get_ctr(_nsvc->ctrg, ctr), val); \
52  rate_ctr_add(rate_ctr_group_get_ctr(_nsvc->nse->ctrg, ctr), val); \
53  } while (0)
54 
55 
56 struct osmo_fsm_inst;
57 struct tlv_parsed;
58 struct vty;
59 
60 struct gprs_ns2_vc_driver;
61 struct gprs_ns2_vc_bind;
62 
63 #define NS_TIMERS_COUNT 11
64 #define NS_TIMERS "(tns-block|tns-block-retries|tns-reset|tns-reset-retries|tns-test|tns-alive|tns-alive-retries|tsns-prov|tsns-size-retries|tsns-config-retries|tsns-procedures-retries)"
65 #define NS_TIMERS_HELP \
66  "(un)blocking Timer (Tns-block) timeout\n" \
67  "(un)blocking Timer (Tns-block) number of retries\n" \
68  "Reset Timer (Tns-reset) timeout\n" \
69  "Reset Timer (Tns-reset) number of retries\n" \
70  "Test Timer (Tns-test) timeout\n" \
71  "Alive Timer (Tns-alive) timeout\n" \
72  "Alive Timer (Tns-alive) number of retries\n" \
73  "SNS Provision Timer (Tsns-prov) timeout\n" \
74  "SNS Size number of retries\n" \
75  "SNS Config number of retries\n" \
76  "SNS Procedures number of retries\n" \
77 
78 /* Educated guess - LLC user payload is 1500 bytes plus possible headers */
79 #define NS_ALLOC_SIZE 3072
80 #define NS_ALLOC_HEADROOM 20
81 
94 };
95 
97  /* standard timers */
102 };
103 
106 };
107 
110 };
111 
113 enum ns2_cs {
119 };
120 
121 enum ns_ctr {
137 };
138 
139 #define NSE_S_BLOCKED 0x0001
140 #define NSE_S_ALIVE 0x0002
141 #define NSE_S_RESET 0x0004
142 
143 #define NS_DESC_B(st) ((st) & NSE_S_BLOCKED ? "BLOCKED" : "UNBLOCKED")
144 #define NS_DESC_A(st) ((st) & NSE_S_ALIVE ? "ALIVE" : "DEAD")
145 #define NS_DESC_R(st) ((st) & NSE_S_RESET ? "RESET" : "UNRESET")
146 
151 
153  void *cb_data;
154 
156  struct llist_head binding;
157 
159  struct llist_head nse;
160 
162 
166 
169 };
170 
171 
173 struct gprs_ns2_nse {
174  uint16_t nsei;
175 
178 
180  struct llist_head list;
181 
183  struct llist_head nsvc;
184 
187 
190 
193  bool first;
194 
196  bool alive;
197 
199  enum gprs_ns2_ll ll;
200 
203 
205 
207  uint32_t sum_data_weight;
208 
210  uint32_t sum_sig_weight;
211 
213  uint16_t mtu;
214 
217 
220 
222  bool freed;
223 
225  struct timespec ts_alive_change;
226 };
227 
229 struct gprs_ns2_vc {
231  struct llist_head list;
232 
234  struct llist_head blist;
235 
237  struct gprs_ns2_nse *nse;
238 
241 
244 
246  uint16_t nsvci;
247 
249  uint8_t sig_weight;
250 
252  uint8_t sig_counter;
253 
255  uint8_t data_weight;
256 
258  void *priv;
259 
262  bool sns_only;
263 
266 
267  enum gprs_ns2_vc_mode mode;
268 
269  struct osmo_fsm_inst *fi;
270 
272  bool freed;
273 
275  struct timespec ts_alive_change;
276 };
277 
281  const char *name;
283  struct llist_head list;
285  struct llist_head nsvc;
287  void *priv;
291 
294 
297 
299  uint16_t mtu;
300 
302  enum gprs_ns2_ll ll;
303 
305  int (*send_vc)(struct gprs_ns2_vc *nsvc, struct msgb *msg);
306 
308  void (*free_vc)(struct gprs_ns2_vc *nsvc);
309 
311  void (*dump_vty)(const struct gprs_ns2_vc_bind *bind,
312  struct vty *vty, bool stats);
313 
315  uint8_t sns_sig_weight;
318 
320 
322  bool freed;
323 };
324 
326  const char *name;
327  void *priv;
329 };
330 
348 };
349 
350 enum ns2_cs ns2_create_vc(struct gprs_ns2_vc_bind *bind,
351  struct msgb *msg,
352  const struct osmo_sockaddr *remote,
353  const char *logname,
354  struct msgb **reject,
355  struct gprs_ns2_vc **success);
356 
357 int ns2_recv_vc(struct gprs_ns2_vc *nsvc,
358  struct msgb *msg);
359 
361  struct gprs_ns2_nse *nse,
362  bool initiater,
363  enum gprs_ns2_vc_mode vc_mode,
364  const char *id);
365 
366 void ns2_free_nsvcs(struct gprs_ns2_nse *nse);
367 int ns2_bind_alloc(struct gprs_ns2_inst *nsi, const char *name,
368  struct gprs_ns2_vc_bind **result);
369 
370 struct msgb *ns2_msgb_alloc(void);
371 
372 void ns2_sns_write_vty(struct vty *vty, const struct gprs_ns2_nse *nse);
373 void ns2_sns_dump_vty(struct vty *vty, const char *prefix, const struct gprs_ns2_nse *nse, bool stats);
374 void ns2_prim_status_ind(struct gprs_ns2_nse *nse,
375  struct gprs_ns2_vc *nsvc,
376  uint16_t bvci,
377  enum gprs_ns2_affecting_cause cause);
378 void ns2_nse_notify_alive(struct gprs_ns2_vc *nsvc, bool alive);
379 void ns2_nse_update_mtu(struct gprs_ns2_nse *nse);
380 int ns2_nse_set_dialect(struct gprs_ns2_nse *nse, enum gprs_ns2_dialect dialect);
381 
382 /* message */
383 int ns2_validate(struct gprs_ns2_vc *nsvc,
384  uint8_t pdu_type,
385  struct msgb *msg,
386  struct tlv_parsed *tp,
387  uint8_t *cause);
388 
389 /* SNS messages */
390 int ns2_tx_sns_ack(struct gprs_ns2_vc *nsvc, uint8_t trans_id, uint8_t *cause,
391  const struct gprs_ns_ie_ip4_elem *ip4_elems,
392  unsigned int num_ip4_elems,
393  const struct gprs_ns_ie_ip6_elem *ip6_elems,
394  unsigned int num_ip6_elems);
395 int ns2_tx_sns_config(struct gprs_ns2_vc *nsvc, bool end_flag,
396  const struct gprs_ns_ie_ip4_elem *ip4_elems,
397  unsigned int num_ip4_elems,
398  const struct gprs_ns_ie_ip6_elem *ip6_elems,
399  unsigned int num_ip6_elems);
400 int ns2_tx_sns_config_ack(struct gprs_ns2_vc *nsvc, uint8_t *cause);
401 int ns2_tx_sns_size(struct gprs_ns2_vc *nsvc, bool reset_flag, uint16_t max_nr_nsvc,
402  int ip4_ep_nr, int ip6_ep_nr);
403 int ns2_tx_sns_size_ack(struct gprs_ns2_vc *nsvc, uint8_t *cause);
404 
405 int ns2_tx_sns_add(struct gprs_ns2_vc *nsvc,
406  uint8_t trans_id,
407  const struct gprs_ns_ie_ip4_elem *ip4_elems,
408  unsigned int num_ip4_elems,
409  const struct gprs_ns_ie_ip6_elem *ip6_elems,
410  unsigned int num_ip6_elems);
411 int ns2_tx_sns_change_weight(struct gprs_ns2_vc *nsvc,
412  uint8_t trans_id,
413  const struct gprs_ns_ie_ip4_elem *ip4_elems,
414  unsigned int num_ip4_elems,
415  const struct gprs_ns_ie_ip6_elem *ip6_elems,
416  unsigned int num_ip6_elems);
417 int ns2_tx_sns_del(struct gprs_ns2_vc *nsvc,
418  uint8_t trans_id,
419  const struct gprs_ns_ie_ip4_elem *ip4_elems,
420  unsigned int num_ip4_elems,
421  const struct gprs_ns_ie_ip6_elem *ip6_elems,
422  unsigned int num_ip6_elems);
423 
424 /* transmit message over a VC */
425 int ns2_tx_block(struct gprs_ns2_vc *nsvc, uint8_t cause, uint16_t *nsvci);
426 int ns2_tx_block_ack(struct gprs_ns2_vc *nsvc, uint16_t *nsvci);
427 
428 int ns2_tx_reset(struct gprs_ns2_vc *nsvc, uint8_t cause);
429 int ns2_tx_reset_ack(struct gprs_ns2_vc *nsvc);
430 
431 int ns2_tx_unblock(struct gprs_ns2_vc *nsvc);
432 int ns2_tx_unblock_ack(struct gprs_ns2_vc *nsvc);
433 
434 int ns2_tx_alive(struct gprs_ns2_vc *nsvc);
435 int ns2_tx_alive_ack(struct gprs_ns2_vc *nsvc);
436 
437 int ns2_tx_unit_data(struct gprs_ns2_vc *nsvc,
438  uint16_t bvci, uint8_t sducontrol,
439  struct msgb *msg);
440 
441 int ns2_tx_status(struct gprs_ns2_vc *nsvc, uint8_t cause,
442  uint16_t bvci, struct msgb *orig_msg, uint16_t *nsvci);
443 
444 /* driver */
446  struct gprs_ns2_nse *nse,
447  const struct osmo_sockaddr *remote);
448 int ns2_ip_count_bind(struct gprs_ns2_inst *nsi, struct osmo_sockaddr *remote);
450  struct osmo_sockaddr *remote,
451  int index);
452 
453 /* sns */
454 int ns2_sns_rx(struct gprs_ns2_vc *nsvc, struct msgb *msg, struct tlv_parsed *tp);
456  const char *id);
457 struct osmo_fsm_inst *ns2_sns_sgsn_fsm_alloc(struct gprs_ns2_nse *nse, const char *id);
458 void ns2_sns_replace_nsvc(struct gprs_ns2_vc *nsvc);
459 void ns2_sns_notify_alive(struct gprs_ns2_nse *nse, struct gprs_ns2_vc *nsvc, bool alive);
460 void ns2_sns_update_weights(struct gprs_ns2_vc_bind *bind);
461 
462 /* vc */
463 struct osmo_fsm_inst *ns2_vc_fsm_alloc(struct gprs_ns2_vc *nsvc,
464  const char *id, bool initiate);
465 int ns2_vc_fsm_start(struct gprs_ns2_vc *nsvc);
466 int ns2_vc_force_unconfigured(struct gprs_ns2_vc *nsvc);
467 int ns2_vc_rx(struct gprs_ns2_vc *nsvc, struct msgb *msg, struct tlv_parsed *tp);
468 int ns2_vc_is_alive(struct gprs_ns2_vc *nsvc);
469 int ns2_vc_is_unblocked(struct gprs_ns2_vc *nsvc);
470 int ns2_vc_block(struct gprs_ns2_vc *nsvc);
471 int ns2_vc_reset(struct gprs_ns2_vc *nsvc);
472 int ns2_vc_unblock(struct gprs_ns2_vc *nsvc);
473 void ns2_vty_dump_nsvc(struct vty *vty, struct gprs_ns2_vc *nsvc, bool stats);
474 
475 /* nse */
476 void ns2_nse_notify_unblocked(struct gprs_ns2_vc *nsvc, bool unblocked);
478 int ns2_count_transfer_cap(struct gprs_ns2_nse *nse,
479  uint16_t bvci);
480 
481 /* vty */
uint16_t bvci
Definition: gprs_msgb.h:8
gprs_ns2_vc_mode
Definition: gprs_ns2.h:25
gprs_ns2_affecting_cause
Osmocom NS primitives according to 48.016 5.2.2.6 Service primitives.
Definition: gprs_ns2.h:78
gprs_ns2_ll
Osmocom NS link layer types.
Definition: gprs_ns2.h:44
gprs_ns2_dialect
Definition: gprs_ns2.h:35
int ns2_tx_sns_config(struct gprs_ns2_vc *nsvc, bool end_flag, const struct gprs_ns_ie_ip4_elem *ip4_elems, unsigned int num_ip4_elems, const struct gprs_ns_ie_ip6_elem *ip6_elems, unsigned int num_ip6_elems)
Encode + Transmit a SNS-CONFIG as per Section 9.3.4.
Definition: gprs_ns2_message.c:681
struct osmo_fsm_inst * ns2_sns_bss_fsm_alloc(struct gprs_ns2_nse *nse, const char *id)
Allocate an IP-SNS FSM for the BSS side.
Definition: gprs_ns2_sns.c:2275
int ns2_tx_sns_del(struct gprs_ns2_vc *nsvc, uint8_t trans_id, const struct gprs_ns_ie_ip4_elem *ip4_elems, unsigned int num_ip4_elems, const struct gprs_ns_ie_ip6_elem *ip6_elems, unsigned int num_ip6_elems)
Encode + Transmit a SNS-DEL as per Section 9.3.6.
Definition: gprs_ns2_message.c:600
int ns2_vc_reset(struct gprs_ns2_vc *nsvc)
Reset a NS-VC.
Definition: gprs_ns2_vc_fsm.c:858
int ns2_vc_rx(struct gprs_ns2_vc *nsvc, struct msgb *msg, struct tlv_parsed *tp)
entry point for messages from the driver/VL
Definition: gprs_ns2_vc_fsm.c:868
int ns2_tx_reset(struct gprs_ns2_vc *nsvc, uint8_t cause)
Transmit a NS-RESET on a given NS-VC.
Definition: gprs_ns2_message.c:287
@ NSVC_TIMER_TNS_RESET
Definition: gprs_ns2_internal.h:100
@ NSVC_TIMER_TNS_ALIVE
Definition: gprs_ns2_internal.h:99
@ NSVC_TIMER_TNS_TEST
Definition: gprs_ns2_internal.h:98
@ _NSVC_TIMER_NR
Definition: gprs_ns2_internal.h:101
int ns2_tx_block_ack(struct gprs_ns2_vc *nsvc, uint16_t *nsvci)
Transmit a NS-BLOCK-ACK on a given NS-VC.
Definition: gprs_ns2_message.c:253
ns2_bind_stat
Definition: gprs_ns2_internal.h:108
@ NS2_BIND_STAT_BACKLOG_LEN
Definition: gprs_ns2_internal.h:109
int ns2_tx_sns_config_ack(struct gprs_ns2_vc *nsvc, uint8_t *cause)
Encode + Transmit a SNS-CONFIG-ACK as per Section 9.3.5.
Definition: gprs_ns2_message.c:737
int ns2_tx_sns_add(struct gprs_ns2_vc *nsvc, uint8_t trans_id, const struct gprs_ns_ie_ip4_elem *ip4_elems, unsigned int num_ip4_elems, const struct gprs_ns_ie_ip6_elem *ip6_elems, unsigned int num_ip6_elems)
Encode + Transmit a SNS-ADD as per Section 9.3.2.
Definition: gprs_ns2_message.c:564
int ns2_tx_alive(struct gprs_ns2_vc *nsvc)
Transmit a NS-ALIVE on a given NS-VC.
Definition: gprs_ns2_message.c:379
int ns2_tx_unblock_ack(struct gprs_ns2_vc *nsvc)
Transmit a NS-UNBLOCK-ACK on a given NS-VC.
Definition: gprs_ns2_message.c:366
int ns2_tx_alive_ack(struct gprs_ns2_vc *nsvc)
Transmit a NS-ALIVE-ACK on a given NS-VC.
Definition: gprs_ns2_message.c:390
void ns2_vty_dump_nsvc(struct vty *vty, struct gprs_ns2_vc *nsvc, bool stats)
Definition: gprs_ns2_vty.c:1875
int ns2_vc_is_alive(struct gprs_ns2_vc *nsvc)
struct osmo_fsm_inst * ns2_sns_sgsn_fsm_alloc(struct gprs_ns2_nse *nse, const char *id)
Allocate an IP-SNS FSM for the SGSN side.
Definition: gprs_ns2_sns.c:3072
int ns2_tx_sns_change_weight(struct gprs_ns2_vc *nsvc, uint8_t trans_id, const struct gprs_ns_ie_ip4_elem *ip4_elems, unsigned int num_ip4_elems, const struct gprs_ns_ie_ip6_elem *ip6_elems, unsigned int num_ip6_elems)
Encode + Transmit a SNS-CHANGE-WEIGHT as per Section 9.3.3.
Definition: gprs_ns2_message.c:582
int ns2_tx_sns_size(struct gprs_ns2_vc *nsvc, bool reset_flag, uint16_t max_nr_nsvc, int ip4_ep_nr, int ip6_ep_nr)
Encode + transmit a SNS-SIZE as per Section 9.3.7.
Definition: gprs_ns2_message.c:783
struct osmo_fsm_inst * ns2_vc_fsm_alloc(struct gprs_ns2_vc *nsvc, const char *id, bool initiate)
gprs_ns2_vc_fsm_alloc
Definition: gprs_ns2_vc_fsm.c:792
void ns2_nse_notify_alive(struct gprs_ns2_vc *nsvc, bool alive)
int ns2_tx_sns_size_ack(struct gprs_ns2_vc *nsvc, uint8_t *cause)
Encode + Transmit a SNS-SIZE-ACK as per Section 9.3.8.
Definition: gprs_ns2_message.c:831
int ns2_tx_sns_ack(struct gprs_ns2_vc *nsvc, uint8_t trans_id, uint8_t *cause, const struct gprs_ns_ie_ip4_elem *ip4_elems, unsigned int num_ip4_elems, const struct gprs_ns_ie_ip6_elem *ip6_elems, unsigned int num_ip6_elems)
Encode + Transmit a SNS-ACK as per Section 9.3.1.
Definition: gprs_ns2_message.c:619
int ns2_sns_rx(struct gprs_ns2_vc *nsvc, struct msgb *msg, struct tlv_parsed *tp)
main entry point for receiving SNS messages from the network.
Definition: gprs_ns2_sns.c:2310
int ns2_sns_add_sns_default_binds(struct gprs_ns2_nse *nse)
Definition: gprs_ns2_vty.c:1622
ns2_sns_event
Definition: gprs_ns2_internal.h:331
@ NS2_SNS_EV_REQ_ADD_BIND
add a new local bind to this NSE
Definition: gprs_ns2_internal.h:345
@ NS2_SNS_EV_REQ_NSVC_ALIVE
a NS-VC became alive
Definition: gprs_ns2_internal.h:344
@ NS2_SNS_EV_RX_CONFIG
Definition: gprs_ns2_internal.h:335
@ NS2_SNS_EV_RX_DELETE
Definition: gprs_ns2_internal.h:339
@ NS2_SNS_EV_RX_CONFIG_ACK
Definition: gprs_ns2_internal.h:337
@ NS2_SNS_EV_REQ_NO_NSVC
no more NS-VC remaining (all dead)
Definition: gprs_ns2_internal.h:342
@ NS2_SNS_EV_RX_ADD
Definition: gprs_ns2_internal.h:338
@ NS2_SNS_EV_RX_CONFIG_END
SNS-CONFIG with end flag received.
Definition: gprs_ns2_internal.h:336
@ NS2_SNS_EV_REQ_FREE_NSVCS
free all NS-VCs
Definition: gprs_ns2_internal.h:343
@ NS2_SNS_EV_REQ_CHANGE_WEIGHT
a bind changed its weight
Definition: gprs_ns2_internal.h:347
@ NS2_SNS_EV_RX_ACK
Rx of SNS-ACK (response to ADD/DELETE/CHG_WEIGHT.
Definition: gprs_ns2_internal.h:341
@ NS2_SNS_EV_RX_SIZE
Definition: gprs_ns2_internal.h:333
@ NS2_SNS_EV_REQ_DELETE_BIND
remove a local bind from this NSE
Definition: gprs_ns2_internal.h:346
@ NS2_SNS_EV_RX_SIZE_ACK
Definition: gprs_ns2_internal.h:334
@ NS2_SNS_EV_RX_CHANGE_WEIGHT
Definition: gprs_ns2_internal.h:340
@ NS2_SNS_EV_REQ_SELECT_ENDPOINT
Select a SNS endpoint from the list.
Definition: gprs_ns2_internal.h:332
#define NS_TIMERS_COUNT
Definition: gprs_ns2_internal.h:63
int ns2_vc_unblock(struct gprs_ns2_vc *nsvc)
Unblock a NS-VC.
Definition: gprs_ns2_vc_fsm.c:846
int ns2_validate(struct gprs_ns2_vc *nsvc, uint8_t pdu_type, struct msgb *msg, struct tlv_parsed *tp, uint8_t *cause)
Definition: gprs_ns2_message.c:139
ns2_timeout
Definition: gprs_ns2_internal.h:82
@ NS_TOUT_TSNS_PROV
Definition: gprs_ns2_internal.h:90
@ NS_TOUT_TNS_BLOCK
Definition: gprs_ns2_internal.h:83
@ NS_TOUT_TNS_RESET
Definition: gprs_ns2_internal.h:85
@ NS_TOUT_TSNS_CONFIG_RETRIES
Definition: gprs_ns2_internal.h:92
@ NS_TOUT_TSNS_SIZE_RETRIES
Definition: gprs_ns2_internal.h:91
@ NS_TOUT_TNS_BLOCK_RETRIES
Definition: gprs_ns2_internal.h:84
@ NS_TOUT_TNS_TEST
Definition: gprs_ns2_internal.h:87
@ NS_TOUT_TNS_ALIVE_RETRIES
Definition: gprs_ns2_internal.h:89
@ NS_TOUT_TNS_RESET_RETRIES
Definition: gprs_ns2_internal.h:86
@ NS_TOUT_TNS_ALIVE
Definition: gprs_ns2_internal.h:88
@ NS_TOUT_TSNS_PROCEDURES_RETRIES
Definition: gprs_ns2_internal.h:93
void ns2_sns_notify_alive(struct gprs_ns2_nse *nse, struct gprs_ns2_vc *nsvc, bool alive)
Definition: gprs_ns2_sns.c:2587
int ns2_tx_unblock(struct gprs_ns2_vc *nsvc)
Transmit a NS-UNBLOCK on a given NS-VC.
Definition: gprs_ns2_message.c:352
int ns2_tx_reset_ack(struct gprs_ns2_vc *nsvc)
Transmit a NS-RESET-ACK on a given NS-VC.
Definition: gprs_ns2_message.c:318
void ns2_sns_update_weights(struct gprs_ns2_vc_bind *bind)
Definition: gprs_ns2_sns.c:2711
int ns2_ip_count_bind(struct gprs_ns2_inst *nsi, struct osmo_sockaddr *remote)
Count UDP binds compatible with remote.
Definition: gprs_ns2_udp.c:558
struct gprs_ns2_vc_bind * ns2_ip_get_bind_by_index(struct gprs_ns2_inst *nsi, struct osmo_sockaddr *remote, int index)
Definition: gprs_ns2_udp.c:580
struct gprs_ns2_vc * ns2_ip_bind_connect(struct gprs_ns2_vc_bind *bind, struct gprs_ns2_nse *nse, const struct osmo_sockaddr *remote)
Create new NS-VC to a given remote address.
Definition: gprs_ns2_udp.c:384
int ns2_vc_force_unconfigured(struct gprs_ns2_vc *nsvc)
Reset a NS-VC FSM.
Definition: gprs_ns2_vc_fsm.c:826
int ns2_tx_status(struct gprs_ns2_vc *nsvc, uint8_t cause, uint16_t bvci, struct msgb *orig_msg, uint16_t *nsvci)
Transmit a NS-STATUS on a given NS-VC.
Definition: gprs_ns2_message.c:437
int ns2_vc_block(struct gprs_ns2_vc *nsvc)
Block a NS-VC.
Definition: gprs_ns2_vc_fsm.c:834
void ns2_sns_replace_nsvc(struct gprs_ns2_vc *nsvc)
called when a nsvc is beeing freed or the nsvc became dead
Definition: gprs_ns2_sns.c:297
void ns2_sns_dump_vty(struct vty *vty, const char *prefix, const struct gprs_ns2_nse *nse, bool stats)
Dump the IP-SNS state to a vty.
Definition: gprs_ns2_sns.c:2399
ns2_cs
Osmocom NS2 VC create status.
Definition: gprs_ns2_internal.h:113
@ NS2_CS_FOUND
A NSVC object has been found.
Definition: gprs_ns2_internal.h:115
@ NS2_CS_CREATED
A NSVC object has been created.
Definition: gprs_ns2_internal.h:114
@ NS2_CS_SKIPPED
Skipped message.
Definition: gprs_ns2_internal.h:117
@ NS2_CS_ERROR
Failed to process message.
Definition: gprs_ns2_internal.h:118
@ NS2_CS_REJECTED
Rejected and answered message.
Definition: gprs_ns2_internal.h:116
int ns2_tx_block(struct gprs_ns2_vc *nsvc, uint8_t cause, uint16_t *nsvci)
Transmit a NS-BLOCK on a given NS-VC.
Definition: gprs_ns2_message.c:216
ns2_vc_stat
Definition: gprs_ns2_internal.h:104
@ NS_STAT_ALIVE_DELAY
Definition: gprs_ns2_internal.h:105
int ns2_vc_fsm_start(struct gprs_ns2_vc *nsvc)
Start a NS-VC FSM.
Definition: gprs_ns2_vc_fsm.c:815
void ns2_sns_write_vty(struct vty *vty, const struct gprs_ns2_nse *nse)
write IP-SNS to a vty
Definition: gprs_ns2_sns.c:2437
int ns2_tx_unit_data(struct gprs_ns2_vc *nsvc, uint16_t bvci, uint8_t sducontrol, struct msgb *msg)
Transmit NS-UNITDATA on a given NS-VC.
Definition: gprs_ns2_message.c:404
int ns2_vc_is_unblocked(struct gprs_ns2_vc *nsvc)
is the given NS-VC unblocked?
Definition: gprs_ns2_vc_fsm.c:985
nsvc_timer_mode
Definition: gprs_ns.h:113
vty
const char * name
uint8_t pdu_type
NS PDU type.
Definition: gsm_08_16.h:0
void ns2_nse_update_mtu(struct gprs_ns2_nse *nse)
Definition: gprs_ns2.c:1578
enum ns2_cs ns2_create_vc(struct gprs_ns2_vc_bind *bind, struct msgb *msg, const struct osmo_sockaddr *remote, const char *logname, struct msgb **reject, struct gprs_ns2_vc **success)
Create a new NS-VC based on a [received] message.
Definition: gprs_ns2.c:1005
enum gprs_ns2_vc_mode ns2_dialect_to_vc_mode(enum gprs_ns2_dialect dialect)
Definition: gprs_ns2.c:1547
ns_ctr
Definition: gprs_ns.c:128
@ NS_CTR_LOST_RESET
Definition: gprs_ns2_internal.h:136
@ NS_CTR_PKTS_OUT_DROP
Definition: gprs_ns2_internal.h:124
@ NS_CTR_PKTS_OUT
Definition: gprs_ns2_internal.h:123
@ NS_CTR_BYTES_OUT
Definition: gprs_ns2_internal.h:126
@ NS_CTR_BYTES_IN
Definition: gprs_ns2_internal.h:125
@ NS_CTR_INV_NSEI
Definition: gprs_ns2_internal.h:134
@ NS_CTR_LOST_ALIVE
Definition: gprs_ns2_internal.h:135
@ NS_CTR_PKTS_IN
Definition: gprs_ns2_internal.h:122
@ NS_CTR_UNBLOCKED
Definition: gprs_ns2_internal.h:129
@ NS_CTR_INV_VCI
Definition: gprs_ns2_internal.h:133
@ NS_CTR_DEAD
Definition: gprs_ns2_internal.h:130
@ NS_CTR_REPLACED
Definition: gprs_ns2_internal.h:131
@ NS_CTR_BLOCKED
Definition: gprs_ns2_internal.h:128
@ NS_CTR_NSEI_CHG
Definition: gprs_ns2_internal.h:132
@ NS_CTR_BYTES_OUT_DROP
Definition: gprs_ns2_internal.h:127
int ns2_recv_vc(struct gprs_ns2_vc *nsvc, struct msgb *msg)
Bottom-side entry-point for received NS PDU from the driver/bind.
Definition: gprs_ns2.c:1290
int ns2_count_transfer_cap(struct gprs_ns2_nse *nse, uint16_t bvci)
calculate the transfer capabilities for a nse
Definition: gprs_ns2.c:1608
void ns2_nse_notify_unblocked(struct gprs_ns2_vc *nsvc, bool unblocked)
Notify a nse about the change of a NS-VC.
Definition: gprs_ns2.c:1392
void ns2_prim_status_ind(struct gprs_ns2_nse *nse, struct gprs_ns2_vc *nsvc, uint16_t bvci, enum gprs_ns2_affecting_cause cause)
Send a STATUS.ind primitive to the specified NS instance user.
Definition: gprs_ns2.c:551
int ns2_nse_set_dialect(struct gprs_ns2_nse *nse, enum gprs_ns2_dialect dialect)
Definition: gprs_ns2.c:847
int ns2_bind_alloc(struct gprs_ns2_inst *nsi, const char *name, struct gprs_ns2_vc_bind **result)
common allocation + low-level initialization of a bind.
Definition: gprs_ns2.c:1652
struct gprs_ns2_vc * ns2_vc_alloc(struct gprs_ns2_vc_bind *bind, struct gprs_ns2_nse *nse, bool initiater, enum gprs_ns2_vc_mode vc_mode, const char *id)
Allocate a NS-VC within the given bind + NSE.
Definition: gprs_ns2.c:590
void ns2_free_nsvcs(struct gprs_ns2_nse *nse)
Definition: gprs_ns2.c:668
struct msgb * ns2_msgb_alloc(void)
Allocate a message buffer for use with the NS2 stack.
Definition: gprs_ns2.c:695
int(* osmo_prim_cb)(struct osmo_prim_hdr *oph, void *ctx)
uint8_t msg[0]
GPRS Networks Service (NS) messages on the Gb interface.
An instance of the NS protocol stack.
Definition: gprs_ns2_internal.h:148
struct llist_head nse
linked lists of all NSVC in this instance
Definition: gprs_ns2_internal.h:159
uint32_t nsvc_rate_ctr_idx
workaround for rate counter until rate counter accepts char str as index
Definition: gprs_ns2_internal.h:164
struct llist_head binding
linked lists of all NSVC binds (e.g.
Definition: gprs_ns2_internal.h:156
void * cb_data
callback data
Definition: gprs_ns2_internal.h:153
struct osmo_mnl * linkmon_mnl
libmnl netlink socket for link state monitoring
Definition: gprs_ns2_internal.h:168
osmo_prim_cb cb
callback to the user for incoming UNIT DATA IND
Definition: gprs_ns2_internal.h:150
uint16_t timeout[NS_TIMERS_COUNT]
Definition: gprs_ns2_internal.h:161
uint32_t bind_rate_ctr_idx
Definition: gprs_ns2_internal.h:165
Structure repesenting a NSE.
Definition: gprs_ns2_internal.h:173
enum gprs_ns2_dialect dialect
which dialect does this NSE speaks?
Definition: gprs_ns2_internal.h:202
uint32_t sum_sig_weight
sum of all the signalling weight of alive NS-VCs
Definition: gprs_ns2_internal.h:210
struct rate_ctr_group * ctrg
NSE-wide statistics.
Definition: gprs_ns2_internal.h:219
struct gprs_ns2_inst * nsi
entry back to ns2_inst
Definition: gprs_ns2_internal.h:177
enum gprs_ns2_ll ll
which link-layer are we based on?
Definition: gprs_ns2_internal.h:199
struct llist_head nsvc
llist head to hold all nsvc
Definition: gprs_ns2_internal.h:183
uint32_t sum_data_weight
sum of all the data weight of alive NS-VCs
Definition: gprs_ns2_internal.h:207
bool ip_sns_role_sgsn
are we implementing the SGSN role?
Definition: gprs_ns2_internal.h:216
bool persistent
true if this NSE was created by VTY or pcu socket)
Definition: gprs_ns2_internal.h:189
struct llist_head list
llist entry for gprs_ns2_inst
Definition: gprs_ns2_internal.h:180
bool first
true if this NSE wasn't yet alive at all.
Definition: gprs_ns2_internal.h:193
struct osmo_fsm_inst * bss_sns_fi
Definition: gprs_ns2_internal.h:204
uint16_t mtu
MTU of a NS PDU.
Definition: gprs_ns2_internal.h:213
uint16_t nsei
Definition: gprs_ns2_internal.h:174
int nsvc_count
count all active NSVCs
Definition: gprs_ns2_internal.h:186
bool freed
recursive anchor
Definition: gprs_ns2_internal.h:222
struct timespec ts_alive_change
when the NSE became alive or dead
Definition: gprs_ns2_internal.h:225
bool alive
true if this NSE has at least one alive VC
Definition: gprs_ns2_internal.h:196
Structure repesenting a bind instance.
Definition: gprs_ns2_internal.h:279
uint8_t sns_data_weight
the IP-SNS data weight when doing dynamic configuration
Definition: gprs_ns2_internal.h:317
bool accept_sns
Definition: gprs_ns2_internal.h:293
void(* dump_vty)(const struct gprs_ns2_vc_bind *bind, struct vty *vty, bool stats)
allow to show information for the vty
Definition: gprs_ns2_internal.h:311
const char * name
unique name
Definition: gprs_ns2_internal.h:281
void(* free_vc)(struct gprs_ns2_vc *nsvc)
free the vc priv data
Definition: gprs_ns2_internal.h:308
bool accept_ipaccess
Definition: gprs_ns2_internal.h:292
int transfer_capability
transfer capability in mbit
Definition: gprs_ns2_internal.h:296
uint16_t mtu
MTU of a NS PDU on this bind.
Definition: gprs_ns2_internal.h:299
bool freed
recursive anchor
Definition: gprs_ns2_internal.h:322
int(* send_vc)(struct gprs_ns2_vc *nsvc, struct msgb *msg)
send a msg over a VC
Definition: gprs_ns2_internal.h:305
struct llist_head nsvc
list of all VC
Definition: gprs_ns2_internal.h:285
uint8_t sns_sig_weight
the IP-SNS signalling weight when doing dynamic configuration
Definition: gprs_ns2_internal.h:315
void * priv
driver private structure
Definition: gprs_ns2_internal.h:287
struct osmo_stat_item_group * statg
Definition: gprs_ns2_internal.h:319
struct llist_head list
list entry in nsi
Definition: gprs_ns2_internal.h:283
struct gprs_ns2_inst * nsi
a pointer back to the nsi
Definition: gprs_ns2_internal.h:289
struct gprs_ns2_vc_driver * driver
Definition: gprs_ns2_internal.h:290
enum gprs_ns2_ll ll
which link-layer are we based on?
Definition: gprs_ns2_internal.h:302
Definition: gprs_ns2_internal.h:325
void * priv
Definition: gprs_ns2_internal.h:327
void(* free_bind)(struct gprs_ns2_vc_bind *driver)
Definition: gprs_ns2_internal.h:328
const char * name
Definition: gprs_ns2_internal.h:326
Structure representing a single NS-VC.
Definition: gprs_ns2_internal.h:229
struct osmo_fsm_inst * fi
Definition: gprs_ns2_internal.h:269
bool sns_only
should this NS-VC only be used for SNS-SIZE and SNS-CONFIG?
Definition: gprs_ns2_internal.h:262
bool freed
recursive anchor
Definition: gprs_ns2_internal.h:272
bool persistent
true if this NS was created by VTY or pcu socket)
Definition: gprs_ns2_internal.h:243
bool nsvci_is_valid
Definition: gprs_ns2_internal.h:260
struct gprs_ns2_vc_bind * bind
pointer to NS VL bind.
Definition: gprs_ns2_internal.h:240
struct timespec ts_alive_change
when the NSVC became alive or dead
Definition: gprs_ns2_internal.h:275
struct llist_head blist
list of NS-VCs within bind, bind is the owner!
Definition: gprs_ns2_internal.h:234
uint8_t sig_counter
signalling packet counter for the load sharing function
Definition: gprs_ns2_internal.h:252
uint8_t sig_weight
signalling weight.
Definition: gprs_ns2_internal.h:249
struct gprs_ns2_nse * nse
pointer to NS Instance
Definition: gprs_ns2_internal.h:237
enum gprs_ns2_vc_mode mode
Definition: gprs_ns2_internal.h:267
struct llist_head list
list of NS-VCs within NSE
Definition: gprs_ns2_internal.h:231
uint8_t data_weight
data weight.
Definition: gprs_ns2_internal.h:255
uint16_t nsvci
uniquely identifies NS-VC if VC contains nsvci
Definition: gprs_ns2_internal.h:246
void * priv
can be used by the bind/driver of the virtual circuit.
Definition: gprs_ns2_internal.h:258
struct rate_ctr_group * ctrg
Definition: gprs_ns2_internal.h:264
struct osmo_stat_item_group * statg
Definition: gprs_ns2_internal.h:265
Section 10.3.2c List of IP4 Elements.
Definition: gsm_08_16.h:24
Section 10.3.2d List of IP6 Elements.
Definition: gsm_08_16.h:32