FreeCalypso > hg > themwi-system-sw
changeset 39:64b9f0f90726
themwi-test-mtc: handle DTMF from MS
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 03 Sep 2022 14:44:19 -0800 |
| parents | 020ba624bdd8 |
| children | 77d980126efd |
| files | libutil/Makefile libutil/dtmf_valid.c mtctest/sig_handler.c |
| diffstat | 3 files changed, 41 insertions(+), 5 deletions(-) [+] |
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--- a/libutil/Makefile Sun Jul 10 00:36:31 2022 -0800 +++ b/libutil/Makefile Sat Sep 03 14:44:19 2022 -0800 @@ -1,7 +1,7 @@ CC= gcc CFLAGS= -O2 -OBJS= extdigits.o imsi_entry.o mncc_debug.o mncc_utils.o nanp_valid.o \ - numstring.o sockinit.o +OBJS= dtmf_valid.o extdigits.o imsi_entry.o mncc_debug.o mncc_utils.o \ + nanp_valid.o numstring.o sockinit.o LIB= libutil.a all: ${LIB}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libutil/dtmf_valid.c Sat Sep 03 14:44:19 2022 -0800 @@ -0,0 +1,29 @@ +/* + * Here we implement a function that validates DTMF digits which arrive + * from GSM MS via MNCC_START_DTMF_IND. + */ + +is_valid_dtmf_digit(c) +{ + switch (c) { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case '*': + case '#': + case 'A': + case 'B': + case 'C': + case 'D': + return(1); + default: + return(0); + } +}
--- a/mtctest/sig_handler.c Sun Jul 10 00:36:31 2022 -0800 +++ b/mtctest/sig_handler.c Sat Sep 03 14:44:19 2022 -0800 @@ -216,9 +216,16 @@ case MNCC_START_DTMF_IND: printf("MNCC_START_DTMF_IND: MS sending DTMF start\n"); print_fields(msg); - msg->msg_type = MNCC_START_DTMF_REJ; - mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU, - GSM48_CC_CAUSE_SERV_OPT_UNIMPL); + if (msg->fields & MNCC_F_KEYPAD && + is_valid_dtmf_digit(msg->keypad)) { + printf("Responding with ACK\n"); + msg->msg_type = MNCC_START_DTMF_RSP; + } else { + printf("Responding with Reject\n"); + msg->msg_type = MNCC_START_DTMF_REJ; + mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU, + GSM48_CC_CAUSE_INVAL_MAND_INF); + } send_mncc_to_gsm(msg, sizeof(struct gsm_mncc)); return; case MNCC_STOP_DTMF_IND: