FreeCalypso > hg > freecalypso-hwlab
view simtool/sysmo.c @ 159:a5e2b6e3bdf7
fc-uicc-tool: fix-sysmo-msisdn command ported over
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 07 Feb 2021 04:07:24 +0000 |
parents | 34c090f35515 |
children |
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/* * This module implements special commands for programmable and * semi-programmable (made-up term for the version without ADM keys) * SIM cards made by Sysmocom. */ #include <sys/types.h> #include <string.h> #include <strings.h> #include <stdio.h> #include <stdlib.h> #include <pcsclite.h> #include <winscard.h> #include "globals.h" #include "file_id.h" cmd_fix_sysmo_msisdn() { int rc; unsigned n; u_char newrec[34]; rc = select_op(DF_TELECOM); if (rc < 0) return(rc); rc = select_op(EF_MSISDN); if (rc < 0) return(rc); rc = parse_ef_select_response(); if (rc < 0) return(rc); if (curfile_structure != 0x01) { fprintf(stderr, "error: EF_MSISDN is not linear fixed\n"); return(-1); } if (curfile_record_len != 34) { fprintf(stderr, "error: expected EF_MSISDN record length of 34 bytes, got %u\n", curfile_record_len); return(-1); } rc = readrec_op(1, 0x04, 34); if (rc < 0) return(rc); for (n = 0; n < 18; n++) { if (sim_resp_data[n] != 0xFF) { fprintf(stderr, "error: non-FF data in the first 18 bytes of alpha tag area\n"); return(-1); } } if (sim_resp_data[18] == 0xFF && sim_resp_data[19] == 0xFF) { printf( "last 2 bytes of alpha tag area are clear - already fixed?\n"); return(0); } if (sim_resp_data[18] != 0x07 || sim_resp_data[19] != 0x91) { fprintf(stderr, "error: bytes 18 & 19 don't match expected bogus programming\n"); return(-1); } memset(newrec, 0xFF, 34); memcpy(newrec + 20, sim_resp_data + 18, 8); return update_rec_op(1, 0x04, newrec, 34); }