libosmo-sigtran 2.2.1.4-74d0 Osmocom SIGTRAN library

ss7_asp.h
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1#pragma once
2
3#include "config.h"
4
5#include <stdint.h>
6#include <osmocom/core/linuxlist.h>
7#include <osmocom/core/fsm.h>
8#include <osmocom/core/msgb.h>
9#include <osmocom/core/tdef.h>
10#include <osmocom/netif/stream.h>
11
12#include <osmocom/sigtran/osmo_ss7.h>
13
14#include "ss7_asp_peer.h"
15#include "ss7_internal.h"
16
17/***********************************************************************
18 * SS7 Application Server Processes
19 ***********************************************************************/
20
21 struct osmo_ss7_instance;
22 struct osmo_xua_layer_manager;
23
24 enum ss7_asp_xua_timer {
25 /* 0 kept unused on purpose since it's handled specially by osmo_fsm */
26 SS7_ASP_XUA_T_ACK = 1, /* RFC3868 & RFC4666 timer T(ack) */
27 SS7_ASP_XUA_T_BEAT, /* RFC3868 & RFC4666 timer T(beat) */
28 /* This must remain the last item: */
29 SS7_ASP_XUA_TIMERS_LEN
30};
31 extern const struct value_string ss7_asp_xua_timer_names[];
32 extern const struct osmo_tdef ss7_asp_xua_timer_defaults[SS7_ASP_XUA_TIMERS_LEN];
33/* According to SUA RFC3868 Section 8, M3UA RFC4666 Section 4.3.4.1 */
34#define SS7_ASP_XUA_DEFAULT_T_ACK_SEC 2
35/* According to SUA RFC3868 Section 8 */
36#define SS7_ASP_XUA_DEFAULT_T_BEAT_SEC 30
37
38 enum ss7_asp_ctr {
39 SS7_ASP_CTR_PKT_RX_TOTAL,
40 SS7_ASP_CTR_PKT_RX_UNKNOWN,
41 SS7_ASP_CTR_PKT_RX_NI_MISMATCH,
42 SS7_ASP_CTR_PKT_TX_TOTAL,
43};
44
45 struct osmo_ss7_asp {
47 struct llist_head list;
48 struct osmo_ss7_instance *inst;
49
51 struct osmo_fsm_inst *fi;
52
54 struct osmo_xua_server *xua_server;
55 struct llist_head siblings;
56
58 struct osmo_stream_cli *client;
59 struct osmo_stream_srv *server;
61 char *sock_name;
62
63 /* ASP Identifier for ASP-UP + NTFY, as received by the peer.
64 * (In IPA ASPs it's used internally to hold 4-bit SLS).
65 * FIXME: This should actually be stored in a AS-ASP relation, since it
66 * can be different per AS, see RFC4666 3.5.1
67 * "The optional ASP Identifier parameter contains a unique value that
68 * is locally significant among the ASPs that support an AS".
69 */
70 uint32_t remote_asp_id;
71 bool remote_asp_id_present;
72
73 /* Layer Manager to which we talk */
74 const struct osmo_xua_layer_manager *lm;
75 void *lm_priv;
76
78 bool dyn_allocated;
79
81 bool simple_client_allocated;
82
84 struct rate_ctr_group *ctrg;
85
87 struct msgb *pending_msg;
88
89 /* IPA proto ASP specific fields. */
90 struct {
91 /* Incoming IPA PDUs have no SLS field, hence a potentially
92 * unique one within AS is assigned to this ASP and applied
93 * manually when received. */
94 uint8_t sls:4;
95 bool sls_assigned;
96 } ipa;
97
98#ifdef WITH_TCAP_LOADSHARING
99 struct {
100 bool enabled;
101 } tcap;
102#endif /* WITH_TCAP_LOADSHARING */
103
104 struct {
105 char *name;
106 char *description;
107 enum osmo_ss7_asp_protocol proto;
108 enum osmo_ss7_asp_admin_state adm_state;
109 bool is_server;
110 enum osmo_ss7_asp_role role;
111 bool role_set_by_vty;
112 bool trans_role_set_by_vty;
113 /* Used internally by "asp" node to figure out if "no shutdown"
114 * was done explicitly, in order to avoid automatic asp
115 * reconfiguring/restart at go_parent().
116 * Can be dropped in the future once we make sure everybody uses
117 * "[no] shutdown" explicitly in cfg files. */
118 bool explicit_shutdown_state_by_vty_since_node_enter;
119
120 struct osmo_ss7_asp_peer local;
121 struct osmo_ss7_asp_peer remote;
122 uint8_t qos_class;
123 uint32_t quirks;
124
125 /* Whether to Tx xUA DAUD during ASP activation when in ASP role. */
126 bool daud_act;
127
128 /* T_defs used by the default_lm: */
129 struct osmo_tdef *T_defs_xua;
130
131 /* T_defs used by the default_lm: */
132 struct osmo_tdef *T_defs_lm;
133
134 struct {
135 bool num_ostreams_present;
136 bool max_instreams_present;
137 bool max_attempts_present;
138 bool max_init_timeo_present;
139 uint16_t num_ostreams_value;
140 uint16_t max_instreams_value;
141 uint16_t max_attempts_value;
142 uint16_t max_init_timeo_value; /* ms */
143 } sctp_init;
144
145 struct {
146 bool keepalive_enable;
147 bool keepalive_time_present;
148 bool keepalive_intvl_present;
149 bool keepalive_probes_present;
150 bool user_timeout_present;
151 int keepalive_time_value; /* seconds */
152 int keepalive_intvl_value; /* seconds */
153 int keepalive_probes_value;
154 unsigned int user_timeout_value; /* milliseconds */
155 } tcp;
156
158 int trans_proto;
159 } cfg;
160};
161
162 struct osmo_ss7_asp *ss7_asp_alloc(struct osmo_ss7_instance *inst, const char *name,
163 uint16_t remote_port, uint16_t local_port,
164 int trans_proto, enum osmo_ss7_asp_protocol proto);
165 bool ss7_asp_set_default_peer_hosts(struct osmo_ss7_asp *asp);
166 bool ss7_asp_is_started(const struct osmo_ss7_asp *asp);
167 int ss7_asp_get_fd(const struct osmo_ss7_asp *asp);
168 int ss7_asp_disconnect_stream(struct osmo_ss7_asp *asp);
169
170 int ss7_asp_apply_tcp_pars(const struct osmo_ss7_asp *asp);
171 int ss7_asp_apply_peer_primary_address(const struct osmo_ss7_asp *asp);
172 int ss7_asp_apply_primary_address(const struct osmo_ss7_asp *asp);
173 int ss7_asp_apply_new_local_address(const struct osmo_ss7_asp *asp, unsigned int loc_idx);
174 int ss7_asp_apply_drop_local_address(const struct osmo_ss7_asp *asp, unsigned int loc_idx);
175
176 void ss7_asp_restart_after_reconfigure(struct osmo_ss7_asp *asp);
177 void osmo_ss7_asp_remove_default_lm(struct osmo_ss7_asp *asp);
178
179 unsigned int ss7_asp_get_all_rctx(const struct osmo_ss7_asp *asp, uint32_t *rctx, unsigned int rctx_size,
180 const struct osmo_ss7_as *excl_as);
181 unsigned int ss7_asp_get_all_rctx_be(const struct osmo_ss7_asp *asp, uint32_t *rctx, unsigned int rctx_size,
182 const struct osmo_ss7_as *excl_as);
183
184 int ss7_asp_determine_traf_mode(const struct osmo_ss7_asp *asp);
185
186#define LOGPASP(asp, subsys, level, fmt, args ...) \
187 _LOGSS7((asp)->inst, subsys, level, "ASP(%s) " fmt, (asp)->cfg.name, ## args)
osmo_ss7.h
osmo_ss7_asp_protocol
osmo_ss7_asp_protocol
Definition: osmo_ss7.h:157
osmo_ss7_asp_role
osmo_ss7_asp_role
Definition: osmo_ss7.h:253
osmo_ss7_asp_admin_state
osmo_ss7_asp_admin_state
Definition: osmo_ss7.h:243
ss7_asp_determine_traf_mode
int ss7_asp_determine_traf_mode(const struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:1576
ss7_asp_is_started
bool ss7_asp_is_started(const struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:956
osmo_ss7_asp_remove_default_lm
void osmo_ss7_asp_remove_default_lm(struct osmo_ss7_asp *asp)
Definition: xua_default_lm_fsm.c:419
ss7_asp_apply_primary_address
int ss7_asp_apply_primary_address(const struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:425
ss7_asp_xua_timer
ss7_asp_xua_timer
Definition: ss7_asp.h:24
SS7_ASP_XUA_TIMERS_LEN
@ SS7_ASP_XUA_TIMERS_LEN
Definition: ss7_asp.h:29
SS7_ASP_XUA_T_ACK
@ SS7_ASP_XUA_T_ACK
Definition: ss7_asp.h:26
SS7_ASP_XUA_T_BEAT
@ SS7_ASP_XUA_T_BEAT
Definition: ss7_asp.h:27
ss7_asp_ctr
ss7_asp_ctr
Definition: ss7_asp.h:38
SS7_ASP_CTR_PKT_TX_TOTAL
@ SS7_ASP_CTR_PKT_TX_TOTAL
Definition: ss7_asp.h:42
SS7_ASP_CTR_PKT_RX_NI_MISMATCH
@ SS7_ASP_CTR_PKT_RX_NI_MISMATCH
Definition: ss7_asp.h:41
SS7_ASP_CTR_PKT_RX_UNKNOWN
@ SS7_ASP_CTR_PKT_RX_UNKNOWN
Definition: ss7_asp.h:40
SS7_ASP_CTR_PKT_RX_TOTAL
@ SS7_ASP_CTR_PKT_RX_TOTAL
Definition: ss7_asp.h:39
ss7_asp_restart_after_reconfigure
void ss7_asp_restart_after_reconfigure(struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:1523
ss7_asp_apply_peer_primary_address
int ss7_asp_apply_peer_primary_address(const struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:383
ss7_asp_get_fd
int ss7_asp_get_fd(const struct osmo_ss7_asp *asp)
Get the fd of a given ASP.
Definition: ss7_asp.c:1510
ss7_asp_disconnect_stream
int ss7_asp_disconnect_stream(struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:845
ss7_asp_xua_timer_defaults
const struct osmo_tdef ss7_asp_xua_timer_defaults[SS7_ASP_XUA_TIMERS_LEN]
Definition: ss7_asp.c:121
ss7_asp_apply_new_local_address
int ss7_asp_apply_new_local_address(const struct osmo_ss7_asp *asp, unsigned int loc_idx)
Definition: ss7_asp.c:339
ss7_asp_apply_tcp_pars
int ss7_asp_apply_tcp_pars(const struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:330
ss7_asp_get_all_rctx
unsigned int ss7_asp_get_all_rctx(const struct osmo_ss7_asp *asp, uint32_t *rctx, unsigned int rctx_size, const struct osmo_ss7_as *excl_as)
Definition: ss7_asp.c:1565
ss7_asp_apply_drop_local_address
int ss7_asp_apply_drop_local_address(const struct osmo_ss7_asp *asp, unsigned int loc_idx)
Definition: ss7_asp.c:361
ss7_asp_alloc
struct osmo_ss7_asp * ss7_asp_alloc(struct osmo_ss7_instance *inst, const char *name, uint16_t remote_port, uint16_t local_port, int trans_proto, enum osmo_ss7_asp_protocol proto)
Definition: ss7_asp.c:702
ss7_asp_xua_timer_names
const struct value_string ss7_asp_xua_timer_names[]
Definition: ss7_asp.c:130
ss7_asp_get_all_rctx_be
unsigned int ss7_asp_get_all_rctx_be(const struct osmo_ss7_asp *asp, uint32_t *rctx, unsigned int rctx_size, const struct osmo_ss7_as *excl_as)
Definition: ss7_asp.c:1558
ss7_asp_set_default_peer_hosts
bool ss7_asp_set_default_peer_hosts(struct osmo_ss7_asp *asp)
Definition: ss7_asp.c:564
ss7_asp_peer.h
ss7_internal.h
osmo_ss7_as
Definition: ss7_as.h:86
osmo_ss7_asp_peer
Definition: ss7_asp_peer.h:11
osmo_ss7_asp
Definition: ss7_asp.h:45
osmo_ss7_asp::role
enum osmo_ss7_asp_role role
Definition: ss7_asp.h:110
osmo_ss7_asp::sock_name
char * sock_name
pre-formatted human readable local/remote socket name
Definition: ss7_asp.h:61
osmo_ss7_asp::sctp_init
struct osmo_ss7_asp::@27::@28 sctp_init
osmo_ss7_asp::role_set_by_vty
bool role_set_by_vty
Definition: ss7_asp.h:111
osmo_ss7_asp::keepalive_time_value
int keepalive_time_value
Definition: ss7_asp.h:151
osmo_ss7_asp::cfg
struct osmo_ss7_asp::@27 cfg
osmo_ss7_asp::remote
struct osmo_ss7_asp_peer remote
Definition: ss7_asp.h:121
osmo_ss7_asp::max_attempts_present
bool max_attempts_present
Definition: ss7_asp.h:137
osmo_ss7_asp::explicit_shutdown_state_by_vty_since_node_enter
bool explicit_shutdown_state_by_vty_since_node_enter
Definition: ss7_asp.h:118
osmo_ss7_asp::max_instreams_present
bool max_instreams_present
Definition: ss7_asp.h:136
osmo_ss7_asp::T_defs_lm
struct osmo_tdef * T_defs_lm
Definition: ss7_asp.h:132
osmo_ss7_asp::fi
struct osmo_fsm_inst * fi
ASP FSM.
Definition: ss7_asp.h:51
osmo_ss7_asp::max_attempts_value
uint16_t max_attempts_value
Definition: ss7_asp.h:141
osmo_ss7_asp::T_defs_xua
struct osmo_tdef * T_defs_xua
Definition: ss7_asp.h:129
osmo_ss7_asp::max_instreams_value
uint16_t max_instreams_value
Definition: ss7_asp.h:140
osmo_ss7_asp::list
struct llist_head list
entry in osmo_ss7_instance::asp_list
Definition: ss7_asp.h:47
osmo_ss7_asp::sls
uint8_t sls
Definition: ss7_asp.h:94
osmo_ss7_asp::proto
enum osmo_ss7_asp_protocol proto
Definition: ss7_asp.h:107
osmo_ss7_asp::lm_priv
void * lm_priv
Definition: ss7_asp.h:75
osmo_ss7_asp::inst
struct osmo_ss7_instance * inst
Definition: ss7_asp.h:48
osmo_ss7_asp::lm
const struct osmo_xua_layer_manager * lm
Definition: ss7_asp.h:74
osmo_ss7_asp::num_ostreams_present
bool num_ostreams_present
Definition: ss7_asp.h:135
osmo_ss7_asp::remote_asp_id
uint32_t remote_asp_id
Definition: ss7_asp.h:70
osmo_ss7_asp::ipa
struct osmo_ss7_asp::@26 ipa
osmo_ss7_asp::server
struct osmo_stream_srv * server
Definition: ss7_asp.h:59
osmo_ss7_asp::quirks
uint32_t quirks
Definition: ss7_asp.h:123
osmo_ss7_asp::simple_client_allocated
bool simple_client_allocated
Were we allocated by "simple client" support?
Definition: ss7_asp.h:81
osmo_ss7_asp::keepalive_probes_value
int keepalive_probes_value
Definition: ss7_asp.h:153
osmo_ss7_asp::sls_assigned
bool sls_assigned
Definition: ss7_asp.h:95
osmo_ss7_asp::client
struct osmo_stream_cli * client
osmo_stream / libosmo-netif handles
Definition: ss7_asp.h:58
osmo_ss7_asp::trans_role_set_by_vty
bool trans_role_set_by_vty
Definition: ss7_asp.h:112
osmo_ss7_asp::adm_state
enum osmo_ss7_asp_admin_state adm_state
Definition: ss7_asp.h:108
osmo_ss7_asp::xua_server
struct osmo_xua_server * xua_server
osmo_xua_server over which we were established
Definition: ss7_asp.h:54
osmo_ss7_asp::local
struct osmo_ss7_asp_peer local
Definition: ss7_asp.h:120
osmo_ss7_asp::is_server
bool is_server
Definition: ss7_asp.h:109
osmo_ss7_asp::tcp
struct osmo_ss7_asp::@27::@29 tcp
osmo_ss7_asp::keepalive_intvl_value
int keepalive_intvl_value
Definition: ss7_asp.h:152
osmo_ss7_asp::user_timeout_present
bool user_timeout_present
Definition: ss7_asp.h:150
osmo_ss7_asp::user_timeout_value
unsigned int user_timeout_value
Definition: ss7_asp.h:154
osmo_ss7_asp::daud_act
bool daud_act
Definition: ss7_asp.h:126
osmo_ss7_asp::dyn_allocated
bool dyn_allocated
Were we dynamically allocated.
Definition: ss7_asp.h:78
osmo_ss7_asp::max_init_timeo_present
bool max_init_timeo_present
Definition: ss7_asp.h:138
osmo_ss7_asp::name
char * name
Definition: ss7_asp.h:105
osmo_ss7_asp::keepalive_probes_present
bool keepalive_probes_present
Definition: ss7_asp.h:149
osmo_ss7_asp::keepalive_time_present
bool keepalive_time_present
Definition: ss7_asp.h:147
osmo_ss7_asp::keepalive_intvl_present
bool keepalive_intvl_present
Definition: ss7_asp.h:148
osmo_ss7_asp::qos_class
uint8_t qos_class
Definition: ss7_asp.h:122
osmo_ss7_asp::pending_msg
struct msgb * pending_msg
Pending message for non-blocking IPA read.
Definition: ss7_asp.h:87
osmo_ss7_asp::num_ostreams_value
uint16_t num_ostreams_value
Definition: ss7_asp.h:139
osmo_ss7_asp::trans_proto
int trans_proto
The underlaying transport protocol (one of IPPROTO_*)
Definition: ss7_asp.h:158
osmo_ss7_asp::description
char * description
Definition: ss7_asp.h:106
osmo_ss7_asp::keepalive_enable
bool keepalive_enable
Definition: ss7_asp.h:146
osmo_ss7_asp::remote_asp_id_present
bool remote_asp_id_present
Definition: ss7_asp.h:71
osmo_ss7_asp::ctrg
struct rate_ctr_group * ctrg
Rate Counter Group.
Definition: ss7_asp.h:84
osmo_ss7_asp::siblings
struct llist_head siblings
Definition: ss7_asp.h:55
osmo_ss7_asp::max_init_timeo_value
uint16_t max_init_timeo_value
Definition: ss7_asp.h:142
osmo_ss7_instance
Definition: ss7_instance.h:45
osmo_xua_layer_manager
Definition: ss7_xua_srv.h:18
osmo_xua_server
Definition: ss7_xua_srv.h:22