1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/* common SABP code */
/* (C) 2015 by Harald Welte <laforge@gnumonks.org>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdint.h>
#include <osmocom/core/msgb.h>
#include <osmocom/sabp/sabp_common.h>
#include <asn1c/asn1helpers.h>
extern int asn1_xer_print;
int _sabp_DSABP = 0;
#define DSABP _sabp_DSABP
const struct value_string sabp_presence_vals[] = {
{ SABP_SABP_PDU_PR_initiatingMessage, "Initiating" },
{ SABP_SABP_PDU_PR_successfulOutcome, "Successful Outcome" },
{ SABP_SABP_PDU_PR_unsuccessfulOutcome, "Unsuccessful Outcome" },
{ 0, NULL }
};
const struct value_string sabp_procedure_code_vals[] = {
{ SABP_ProcedureCode_id_Write_Replace, "Write-Replace" },
{ SABP_ProcedureCode_id_Kill, "Kill" },
{ SABP_ProcedureCode_id_Load_Status_Enquiry, "Load-Status-Enquiry" },
{ SABP_ProcedureCode_id_Message_Status_Query, "Message-Status-Query" },
{ SABP_ProcedureCode_id_Restart_Indication, "Restart-Indication" },
{ SABP_ProcedureCode_id_Reset, "Reset" },
{ SABP_ProcedureCode_id_Failure_Indication, "Failure-Indication" },
{ SABP_ProcedureCode_id_Error_Indication, "Error-Indication" },
{ 0, NULL }
};
const struct value_string sabp_cause_vals[] = {
{ SABP_Cause_parameter_not_recognised, "Parameter not recognized" },
{ SABP_Cause_parameter_value_invalid, "Parameter value invalid" },
{ SABP_Cause_valid_CN_message_not_identified, "Valid CN message not identified" },
{ SABP_Cause_service_area_identity_not_valid, "Service Area Identity not valid" },
{ SABP_Cause_unrecognised_message, "Unrecognised message" },
{ SABP_Cause_missing_mandatory_element, "Missing mandatory element" },
{ SABP_Cause_rNC_capacity_exceeded, "RNC capacity exceeded" },
{ SABP_Cause_rNC_memory_exceeded, "RNC memory exceeded" },
{ SABP_Cause_service_area_broadcast_not_supported, "Service Area Broadcast not supported" },
{ SABP_Cause_service_area_broadcast_not_operational, "Service Area Broadcast not operational" },
{ SABP_Cause_message_reference_already_used, "Message Reference already used" },
{ SABP_Cause_unspecifed_error, "Unspecified Error" },
{ SABP_Cause_transfer_syntax_error, "Transfer Syntax Error" },
{ SABP_Cause_semantic_error, "Semantic Error" },
{ SABP_Cause_message_not_compatible_with_receiver_state,
"Message not compatible with receiver state" },
{ SABP_Cause_abstract_syntax_error_reject, "Abstract Syntax Error - Reject" },
{ SABP_Cause_abstract_syntax_error_ignore_and_notify,
"Abstract Syntax Error - Ignore and Notify" },
{ SABP_Cause_abstract_syntax_error_falsely_constructed_message,
"Abstract Syntax Error - Falsely constructed message" },
{ 0, NULL }
};
static struct msgb *sabp_msgb_alloc(void)
{
return msgb_alloc_headroom(1024+512, 512, "SABP Tx");
}
static struct msgb *_sabp_gen_msg(SABP_SABP_PDU_t *pdu)
{
struct msgb *msg = sabp_msgb_alloc();
asn_enc_rval_t rval;
if (!msg)
return NULL;
rval = aper_encode_to_buffer(&asn_DEF_SABP_SABP_PDU, pdu,
msg->data, msgb_tailroom(msg));
if (rval.encoded < 0) {
LOGP(DSABP, LOGL_ERROR, "Error encoding type: %s\n",
rval.failed_type->name);
}
msgb_put(msg, rval.encoded/8);
return msg;
}
struct msgb *sabp_generate_initiating_message(e_SABP_ProcedureCode procedureCode,
SABP_Criticality_t criticality,
asn_TYPE_descriptor_t *td, void *sptr)
{
SABP_SABP_PDU_t pdu;
struct msgb *msg;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = SABP_SABP_PDU_PR_initiatingMessage;
pdu.choice.initiatingMessage.procedureCode = procedureCode;
pdu.choice.initiatingMessage.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.initiatingMessage.value, td, sptr);
if (rc < 0) {
LOGP(DSABP, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
msg = _sabp_gen_msg(&pdu);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_SABP_SABP_PDU, &pdu);
return msg;
}
struct msgb *sabp_generate_successful_outcome(
e_SABP_ProcedureCode procedureCode,
SABP_Criticality_t criticality,
asn_TYPE_descriptor_t * td,
void *sptr)
{
SABP_SABP_PDU_t pdu;
struct msgb *msg;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = SABP_SABP_PDU_PR_successfulOutcome;
pdu.choice.successfulOutcome.procedureCode = procedureCode;
pdu.choice.successfulOutcome.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.successfulOutcome.value, td, sptr);
if (rc < 0) {
LOGP(DSABP, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
msg = _sabp_gen_msg(&pdu);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_SABP_SABP_PDU, &pdu);
return msg;
}
struct msgb *sabp_generate_unsuccessful_outcome(
e_SABP_ProcedureCode procedureCode,
SABP_Criticality_t criticality,
asn_TYPE_descriptor_t * td,
void *sptr)
{
SABP_SABP_PDU_t pdu;
struct msgb *msg;
int rc;
memset(&pdu, 0, sizeof(pdu));
pdu.present = SABP_SABP_PDU_PR_unsuccessfulOutcome;
pdu.choice.unsuccessfulOutcome.procedureCode = procedureCode;
pdu.choice.unsuccessfulOutcome.criticality = criticality;
rc = ANY_fromType_aper(&pdu.choice.unsuccessfulOutcome.value, td, sptr);
if (rc < 0) {
LOGP(DSABP, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", td->name);
return NULL;
}
msg = _sabp_gen_msg(&pdu);
ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_SABP_SABP_PDU, &pdu);
return msg;
}
SABP_IE_t *sabp_new_ie(SABP_ProtocolIE_ID_t id,
SABP_Criticality_t criticality,
asn_TYPE_descriptor_t * type, void *sptr)
{
SABP_IE_t *buff;
int rc;
if ((buff = CALLOC(1, sizeof(*buff))) == NULL) {
// Possible error on malloc
return NULL;
}
buff->id = id;
buff->criticality = criticality;
rc = ANY_fromType_aper(&buff->value, type, sptr);
if (rc < 0) {
LOGP(DSABP, LOGL_ERROR, "Error in ANY_fromType_aper (%s)\n", type->name);
FREEMEM(buff);
return NULL;
}
if (asn1_xer_print)
if (xer_fprint(stdout, &asn_DEF_SABP_IE, buff) < 0) {
FREEMEM(buff);
return NULL;
}
return buff;
}
void sabp_set_log_area(int log_area)
{
_sabp_DSABP = log_area;
}
|
