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simplify NR PDCP ASN.1 decoding and add encoding for configuration values

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This commit is contained in:
Cedric Roux
2025-06-05 08:58:07 +02:00
parent 9845891ec4
commit 3f2eddd6ba
2 changed files with 30 additions and 58 deletions
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openair2/LAYER2/nr_pdcp/asn1_utils.c
+22 -55
View File
@@ -19,63 +19,30 @@
* contact@openairinterface.org
*/
#include "nr_pdcp_asn1_utils.h"
#include "common/utils/LOG/log.h"
#include "nr_pdcp_entity.h"
#include "nr_pdcp_configuration.h"
int decode_t_reordering(int v)
{
static const int tab[36] = {0, 1, 2, 4, 5, 8, 10, 15, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160,
180, 200, 220, 240, 260, 280, 300, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000};
if (v < 0 || v > 35) {
LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
return tab[v];
#define ENCODE_DECODE(a, b) \
int decode_##a(int v) \
{ \
static const int tab[] = { VALUES_NR_PDCP_##b }; \
AssertFatal(v >= 0 && v < SIZEOF_NR_PDCP_##b, \
"bad encoded value " #a " %d\n", v); \
return tab[v]; \
} \
\
int encode_##a(int v) \
{ \
static const int tab[] = { VALUES_NR_PDCP_##b }; \
for (int ret = 0; ret < SIZEOF_NR_PDCP_##b; ret++) \
if (tab[ret] == v) \
return ret; \
AssertFatal(0, "bad " #a " value %d\n", v); \
}
int decode_sn_size_ul(long s)
{
if (s == 0) return SHORT_SN_SIZE;
if (s == 1) return LONG_SN_SIZE;
LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
int decode_sn_size_dl(long s)
{
if (s == 0) return SHORT_SN_SIZE;
if (s == 1) return LONG_SN_SIZE;
LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
int decode_discard_timer(long v)
{
static const int tab[16] = {
10,
20,
30,
40,
50,
60,
75,
100,
150,
200,
250,
300,
500,
750,
1500,
-1,
};
if (v < 0 || v > 15) {
LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
exit(1);
}
return tab[v];
}
ENCODE_DECODE(t_reordering, T_REORDERING)
ENCODE_DECODE(sn_size_ul, SN_SIZE)
ENCODE_DECODE(sn_size_dl, SN_SIZE)
ENCODE_DECODE(discard_timer, DISCARD_TIMER)
openair2/LAYER2/nr_pdcp/nr_pdcp_asn1_utils.h
+8 -3
View File
@@ -23,8 +23,13 @@
#define _OPENAIR2_LAYER2_NR_PDCP_ASN1_UTILS_H_
int decode_t_reordering(int v);
int decode_sn_size_ul(long s);
int decode_sn_size_dl(long s);
int decode_discard_timer(long v);
int decode_sn_size_ul(int v);
int decode_sn_size_dl(int v);
int decode_discard_timer(int v);
int encode_t_reordering(int v);
int encode_sn_size_ul(int v);
int encode_sn_size_dl(int v);
int encode_discard_timer(int v);
#endif /* _OPENAIR2_LAYER2_NR_PDCP_ASN1_UTILS_H_ */