FreeCalypso > hg > fc-sim-tools
view uicc/select.c @ 58:871281cb0555
doc/Low-level-commands: apdu-checksw documented
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Tue, 23 Mar 2021 00:21:02 +0000 |
parents | b70d35f5476f |
children | 0e46bbb801e0 |
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#include <sys/types.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdio.h> #include <stdlib.h> #include "simresp.h" u_char std_aid_usim[7] = {0xA0, 0x00, 0x00, 0x00, 0x87, 0x10, 0x02}; u_char std_aid_isim[7] = {0xA0, 0x00, 0x00, 0x00, 0x87, 0x10, 0x04}; unsigned last_sel_file_record_len; elem_select_op(file_id) unsigned file_id; { u_char cmd[7]; int rc; last_sel_file_record_len = 0; /* SELECT command APDU */ cmd[0] = 0x00; cmd[1] = 0xA4; cmd[2] = 0x00; cmd[3] = 0x04; cmd[4] = 2; cmd[5] = file_id >> 8; cmd[6] = file_id; return apdu_exchange(cmd, 7); } select_op(file_id) unsigned file_id; { u_char cmd[7]; int rc; unsigned expect_resp_len; last_sel_file_record_len = 0; /* SELECT command APDU */ cmd[0] = 0x00; cmd[1] = 0xA4; cmd[2] = 0x00; cmd[3] = 0x04; cmd[4] = 2; cmd[5] = file_id >> 8; cmd[6] = file_id; rc = apdu_exchange(cmd, 7); if (rc < 0) return(rc); if ((sim_resp_sw & 0xFF00) != 0x6100) { fprintf(stderr, "error or unexpected SW response to SELECT of 0x%04X: %04X\n", file_id, sim_resp_sw); return(-1); } expect_resp_len = sim_resp_sw & 0xFF; /* GET RESPONSE follow-up */ cmd[1] = 0xC0; cmd[2] = 0; cmd[3] = 0; cmd[4] = expect_resp_len; rc = apdu_exchange(cmd, 5); if (rc < 0) return(rc); if (sim_resp_sw != 0x9000) { fprintf(stderr, "bad SW resp to GET RESPONSE after SELECT: %04X\n", sim_resp_sw); return(-1); } if (sim_resp_data_len != expect_resp_len) { fprintf(stderr, "error: GET RESPONSE after SELECT returned %u bytes, expected %u\n", sim_resp_data_len, expect_resp_len); return(-1); } return(0); } select_aid_op(aid, aid_len) u_char *aid; unsigned aid_len; { u_char cmd[21]; int rc; unsigned expect_resp_len; last_sel_file_record_len = 0; /* SELECT command APDU */ cmd[0] = 0x00; cmd[1] = 0xA4; cmd[2] = 0x04; cmd[3] = 0x04; cmd[4] = aid_len; bcopy(aid, cmd + 5, aid_len); rc = apdu_exchange(cmd, aid_len + 5); if (rc < 0) return(rc); if ((sim_resp_sw & 0xFF00) != 0x6100) { fprintf(stderr, "error or unexpected SW response to SELECT by AID: %04X\n", sim_resp_sw); return(-1); } expect_resp_len = sim_resp_sw & 0xFF; /* GET RESPONSE follow-up */ cmd[1] = 0xC0; cmd[2] = 0; cmd[3] = 0; cmd[4] = expect_resp_len; rc = apdu_exchange(cmd, 5); if (rc < 0) return(rc); if (sim_resp_sw != 0x9000) { fprintf(stderr, "bad SW resp to GET RESPONSE after SELECT: %04X\n", sim_resp_sw); return(-1); } if (sim_resp_data_len != expect_resp_len) { fprintf(stderr, "error: GET RESPONSE after SELECT returned %u bytes, expected %u\n", sim_resp_data_len, expect_resp_len); return(-1); } return(0); } select_resp_header_check(ret_offset, ret_length) unsigned *ret_offset, *ret_length; { unsigned offset, len; if (sim_resp_data_len < 2) { tooshort: fprintf(stderr, "error: SELECT response is too short\n"); return(-1); } if (sim_resp_data[0] != 0x62) { fprintf(stderr, "error: SELECT response first byte != 0x62\n"); return(-1); } len = sim_resp_data[1]; if (len <= 0x7F) { offset = 2; return_check: if (offset + len > sim_resp_data_len) goto tooshort; if (ret_offset) *ret_offset = offset; if (ret_length) *ret_length = len; return(0); } if (len != 0x81) { fprintf(stderr, "SELECT response: first length byte is bad\n"); return(-1); } if (sim_resp_data_len < 3) goto tooshort; len = sim_resp_data[2]; offset = 3; goto return_check; } static void check_for_record_struct(tlv) u_char *tlv; { unsigned reclen; if (tlv[1] != 5) return; if (tlv[2] & 0x80) return; if ((tlv[2] & 0x38) == 0x38) return; if ((tlv[2] & 0x03) != 0x02) return; reclen = (tlv[4] << 8) | tlv[5]; if (reclen < 1 || reclen > 255) return; last_sel_file_record_len = reclen; } parse_and_display_select_response(outf) FILE *outf; { unsigned offset, totlen, reclen, n; u_char *dp, *endp; int rc; rc = select_resp_header_check(&offset, &totlen); if (rc < 0) return(rc); dp = sim_resp_data + offset; endp = sim_resp_data + offset + totlen; while (dp < endp) { if (endp - dp < 2) { trunc_error: fprintf(stderr, "error: truncated TLV record in SELECT response\n"); return(-1); } if ((dp[0] & 0x1F) == 0x1F) { fprintf(stderr, "error: extended tag not supported in SELECT response\n"); return(-1); } if (dp[1] & 0x80) { fprintf(stderr, "error: extended length not supported in SELECT response\n"); return(-1); } reclen = dp[1] + 2; if (endp - dp < reclen) goto trunc_error; if (dp[0] == 0x82) check_for_record_struct(dp); for (n = 0; n < reclen; n++) { if (n) putc(' ', outf); fprintf(outf, "%02X", *dp++); } putc('\n', outf); } return(0); } cmd_select(argc, argv, outf) char **argv; FILE *outf; { int file_id, rc; if (isxdigit(argv[1][0]) && isxdigit(argv[1][1]) && isxdigit(argv[1][2]) && isxdigit(argv[1][3]) && !argv[1][4]) file_id = strtoul(argv[1], 0, 16); else file_id = find_symbolic_file_name(argv[1]); if (file_id < 0) { fprintf(stderr, "error: file ID argument is not a hex value or a recognized symbolic name\n"); return(-1); } rc = select_op(file_id); if (rc < 0) return(rc); return parse_and_display_select_response(outf); } cmd_select_aid(argc, argv, outf) char **argv; FILE *outf; { u_char aid[16]; unsigned aid_len; int rc; rc = decode_hex_data_from_string(argv[1], aid, 1, 16); if (rc < 0) return(rc); aid_len = rc; rc = select_aid_op(aid, aid_len); if (rc < 0) return(rc); return parse_and_display_select_response(outf); } cmd_select_usim(argc, argv, outf) char **argv; FILE *outf; { int rc; rc = select_aid_op(std_aid_usim, 7); if (rc < 0) return(rc); return parse_and_display_select_response(outf); } cmd_select_isim(argc, argv, outf) char **argv; FILE *outf; { int rc; rc = select_aid_op(std_aid_isim, 7); if (rc < 0) return(rc); return parse_and_display_select_response(outf); } u_char * extract_select_resp_tag(sought_tag) unsigned sought_tag; { unsigned offset, totlen, reclen; u_char *dp, *endp; int rc; rc = select_resp_header_check(&offset, &totlen); if (rc < 0) return(0); dp = sim_resp_data + offset; endp = sim_resp_data + offset + totlen; while (dp < endp) { if (endp - dp < 2) { trunc_error: fprintf(stderr, "error: truncated TLV record in SELECT response\n"); return(0); } if ((dp[0] & 0x1F) == 0x1F) { fprintf(stderr, "error: extended tag not supported in SELECT response\n"); return(0); } if (dp[1] & 0x80) { fprintf(stderr, "error: extended length not supported in SELECT response\n"); return(0); } reclen = dp[1] + 2; if (endp - dp < reclen) goto trunc_error; if (dp[0] == sought_tag) return(dp); dp += reclen; } fprintf(stderr, "error: tag 0x%02X not found in SELECT response\n", sought_tag); return(0); } select_resp_get_transparent(lenp) unsigned *lenp; { u_char *tlv; tlv = extract_select_resp_tag(0x82); if (!tlv) return(-1); if (tlv[1] != 2) { bad_file_desc: fprintf(stderr, "error: file type is not transparent EF\n"); return(-1); } if (tlv[2] & 0x80) goto bad_file_desc; if ((tlv[2] & 0x38) == 0x38) goto bad_file_desc; if ((tlv[2] & 0x07) != 0x01) goto bad_file_desc; tlv = extract_select_resp_tag(0x80); if (!tlv) return(-1); if (tlv[1] != 2) { fprintf(stderr, "error: file size TLV element has wrong length\n"); return(-1); } if (lenp) *lenp = (tlv[2] << 8) | tlv[3]; return(0); } select_resp_get_linear_fixed(rec_len_ret, rec_count_ret) unsigned *rec_len_ret, *rec_count_ret; { u_char *tlv; unsigned reclen; tlv = extract_select_resp_tag(0x82); if (!tlv) return(-1); if (tlv[1] != 5) { bad_file_desc: fprintf(stderr, "error: file type is not linear fixed EF\n"); return(-1); } if (tlv[2] & 0x80) goto bad_file_desc; if ((tlv[2] & 0x38) == 0x38) goto bad_file_desc; if ((tlv[2] & 0x07) != 0x02) goto bad_file_desc; reclen = (tlv[4] << 8) | tlv[5]; if (reclen < 1 || reclen > 255) { fprintf(stderr, "error: SELECT response gives invalid record length\n"); return(-1); } if (rec_len_ret) *rec_len_ret = reclen; if (rec_count_ret) *rec_count_ret = tlv[6]; return(0); }