31 #include <osmocom/core/defs.h>
32 #include <osmocom/core/utils.h>
34 #define ADD_MODULO(sum, delta, modulo) do { \
35 if ((sum += delta) >= modulo) \
39 #define GSM_MAX_FN (26*51*2048)
77 int gsm_7bit_decode_n(
char *decoded,
size_t n,
const uint8_t *user_data, uint8_t length);
98 int gsm_7bit_encode_n(uint8_t *result,
size_t n,
const char *data,
int *octets_written);
108 int gsm_septets2octets(uint8_t *result,
const uint8_t *rdata, uint8_t septet_len, uint8_t padding);
111 int gsm_7bit_decode_n_hdr(
char *decoded,
size_t n,
const uint8_t *user_data, uint8_t length, uint8_t ud_hdr_ind);
126 case 1:
return (cm2[0] & (1<<3)) ? 0 : 1;
127 case 2:
return (cm2[2] & (1<<0)) ? 1 : 0;
128 case 3:
return (cm2[2] & (1<<1)) ? 1 : 0;
137 case 4:
return (cm3[0] & (1<<0)) ? 1 : 0;
138 case 5:
return (cm3[0] & (1<<1)) ? 1 : 0;
139 case 6:
return (cm3[0] & (1<<2)) ? 1 : 0;
140 case 7:
return (cm3[0] & (1<<3)) ? 1 : 0;
149 const int tbl[4] = { 1, 2, 4, 7 };
153 #define ARFCN_PCS 0x8000
154 #define ARFCN_UPLINK 0x4000
155 #define ARFCN_FLAG_MASK 0xf000
221 #define GSM_7BIT_LEGACY_MAX_BUFFER_SIZE 0x10000
223 int gsm_7bit_decode(
char *decoded,
const uint8_t *user_data, uint8_t length) OSMO_DEPRECATED(
"Use gsm_7bit_decode_n() instead");
224 int gsm_7bit_decode_ussd(
char *decoded,
const uint8_t *user_data, uint8_t length) OSMO_DEPRECATED(
"Use gsm_7bit_decode_n_ussd() instead");
225 int gsm_7bit_encode(uint8_t *result,
const char *data) OSMO_DEPRECATED(
"Use gsm_7bit_encode_n() instead");
226 int gsm_7bit_encode_ussd(uint8_t *result,
const char *data,
int *octets_written) OSMO_DEPRECATED(
"Use gsm_7bit_encode_n_ussd() instead");
227 int gsm_7bit_encode_oct(uint8_t *result,
const char *data,
int *octets_written) OSMO_DEPRECATED(
"Use gsm_7bit_encode_n() instead");
Definition: gsm_utils.h:213
int gsm_7bit_decode_n(char *decoded, size_t n, const uint8_t *user_data, uint8_t length)
Decode a sequence of GSM 03.38 encoded 7 bit characters.
Definition: gsm_utils.c:215
uint32_t fn
Definition: gsm_utils.h:42
Definition: gsm_utils.h:189
int gsm_septet_encode(uint8_t *result, const char *data)
Encode a ASCII characterrs as 7-bit GSM alphabet (TS 03.38)
Definition: gsm_utils.c:242
Definition: gsm_utils.h:190
int gsm_7bit_decode_n_hdr(char *decoded, size_t n, const uint8_t *user_data, uint8_t length, uint8_t ud_hdr_ind)
TS 03.38 7-bit Character unpacking (6.2.1)
Definition: gsm_utils.c:157
gprs_tlli_type
Definition: gsm_utils.h:172
Definition: gsm_utils.h:52
Definition: gsm_utils.h:178
enum gsm_band gsm_band_parse(const char *mhz)
Parse string name of a GSM band.
Definition: gsm_utils.c:597
int gsm_7bit_decode_ussd(char *decoded, const uint8_t *user_data, uint8_t length) OSMO_DEPRECATED("Use gsm_7bit_decode_n_ussd() instead")
Definition: gsm_utils.c:848
Definition: gsm_utils.h:214
const struct value_string gsm_chan_t_names[]
Definition: gsm48.c:391
int gsm_7bit_encode_ussd(uint8_t *result, const char *data, int *octets_written) OSMO_DEPRECATED("Use gsm_7bit_encode_n_ussd() instead")
Definition: gsm_utils.c:861
static int ms_cm2_a5n_support(uint8_t *cm2, unsigned n)
Definition: gsm_utils.h:123
Definition: gsm_utils.h:208
uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink)
Convert an ARFCN to the frequency in MHz * 10.
Definition: gsm_utils.c:684
uint16_t t1
Definition: gsm_utils.h:43
uint8_t dbm2rxlev(int dbm)
Convert RF signal level in dBm to TS 05.08 RxLev (TS 05.08 Chapter 8.1.4)
Definition: gsm_utils.c:560
Definition: gsm_utils.h:177
Definition: gsm_utils.h:51
Definition: gsm_utils.h:201
uint8_t tc
Definition: gsm_utils.h:46
Definition: gsm_utils.h:179
Definition: gsm_utils.h:191
int gsm_7bit_decode_n_ussd(char *decoded, size_t n, const uint8_t *user_data, uint8_t length)
Decode a sequence of 7 bit characters (USSD encoding).
Definition: gsm_utils.c:221
uint32_t gprs_tmsi2tlli(uint32_t p_tmsi, enum gprs_tlli_type type)
Determine TLLI from P-TMSI.
Definition: gsm_utils.c:820
Definition: gsm_utils.h:209
int gsm_7bit_encode_oct(uint8_t *result, const char *data, int *octets_written) OSMO_DEPRECATED("Use gsm_7bit_encode_n() instead")
Definition: gsm_utils.c:867
Definition: gsm_utils.h:207
Definition: gsm_utils.h:55
int gsm_7bit_encode(uint8_t *result, const char *data) OSMO_DEPRECATED("Use gsm_7bit_encode_n() instead")
Definition: gsm_utils.c:854
const char * gsm_band_name(enum gsm_band band)
Return string name of a given GSM Band.
Definition: gsm_utils.c:573
int gsm_septets2octets(uint8_t *result, const uint8_t *rdata, uint8_t septet_len, uint8_t padding)
GSM Default Alphabet 7bit to octet packing.
Definition: gsm_utils.c:276
Definition: gsm_utils.h:57
Definition: gsm_utils.h:212
gsm_phys_chan_config
Definition: gsm_utils.h:188
Definition: gsm_utils.h:195
uint8_t t3
Definition: gsm_utils.h:45
static int ms_cm3_a5n_support(uint8_t *cm3, unsigned n)
Definition: gsm_utils.h:135
static int rach_max_trans_raw2val(int raw)
Definition: gsm_utils.h:148
unsigned int ms_class_gmsk_dbm(enum gsm_band band, int ms_class)
Convert power class to dBm according to GSM TS 05.05.
Definition: gsm_utils.c:411
Definition: gsm_utils.h:200
Definition: gsm_utils.h:54
Definition: gsm_utils.h:211
Definition: gsm_utils.h:56
Definition: gsm_utils.h:199
Definition: gsm_utils.h:41
int gsm_7bit_decode(char *decoded, const uint8_t *user_data, uint8_t length) OSMO_DEPRECATED("Use gsm_7bit_decode_n() instead")
Definition: gsm_utils.c:839
int rxlev2dbm(uint8_t rxlev)
Convert TS 05.08 RxLev to dBm (TS 05.08 Chapter 8.1.4)
Definition: gsm_utils.c:549
static int rach_max_trans_val2raw(int val)
Definition: gsm_utils.h:147
Definition: gsm_utils.h:198
Definition: gsm_utils.h:194
uint16_t gsm_freq102arfcn(uint16_t freq10, int uplink)
Convert a Frequency in MHz * 10 to ARFCN.
Definition: gsm_utils.c:711
Definition: gsm_utils.h:206
uint32_t gsm_gsmtime2fn(struct gsm_time *time)
Encode decoded gsm_time to Frame Number.
Definition: gsm_utils.c:755
uint8_t t2
Definition: gsm_utils.h:44
Definition: gsm_utils.h:176
enum gsm_band gsm_arfcn2band(uint16_t arfcn)
Resolve GSM band from ARFCN In Osmocom, we use the highest bit of the arfcn to indicate PCS...
Definition: gsm_utils.c:631
Definition: gsm_utils.h:210
Definition: gsm_utils.h:53
gsm_chan_t
Definition: gsm_utils.h:205
Definition: gsm_utils.h:197
int ms_pwr_ctl_lvl(enum gsm_band band, unsigned int dbm)
determine power control level for given dBm value, as indicated by the tables in chapter 4...
Definition: gsm_utils.c:456
int gsm_7bit_encode_n_ussd(uint8_t *result, size_t n, const char *data, int *octets_written)
Encode a text string into GSM 03.38 encoded 7 bit characters (USSD encoding).
Definition: gsm_utils.c:371
gsm_band
Definition: gsm_utils.h:49
Definition: gsm_utils.h:173
Definition: gsm_utils.h:174
uint8_t gsm_get_octet_len(const uint8_t sept_len)
Compute number of octets from number of septets, for instance: 47 septets needs 41,125 = 42 octets
Definition: gsm_utils.c:142
Definition: gsm_utils.h:193
int ms_pwr_dbm(enum gsm_band band, uint8_t lvl)
Convert TS 05.05 power level to absolute dBm value.
Definition: gsm_utils.c:508
void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn)
Parse GSM Frame Number into struct gsm_time.
Definition: gsm_utils.c:743
Definition: gsm_utils.h:50
Definition: gsm_utils.h:175
Definition: gsm_utils.h:196
Definition: gsm_utils.h:192
int gsm_7bit_encode_n(uint8_t *result, size_t n, const char *data, int *octets_written)
Encode a text string into GSM 03.38 encoded 7 bit characters.
Definition: gsm_utils.c:327