mirror of https://gerrit.osmocom.org/libosmocore
447 lines
14 KiB
C
447 lines
14 KiB
C
/*! \file sim.h
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* Routines for helping with SIM (ISO/IEC 7816-4 more generally) communication.
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*/
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#pragma once
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/linuxlist.h>
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#define APDU_HDR_LEN 5
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#define MAX_AID_LEN 16 /* Table 13.2 of TS 102 221 */
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/*! Maximum Answer-To-Reset (ATR) size in bytes
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* @note defined in ISO/IEC 7816-3:2006(E) section 8.2.1 as 32, on top the initial character TS of section 8.1
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* @remark technical there is no size limitation since Yi present in T0,TDi will indicate if more interface bytes are present, including TDi+i
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*/
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#define OSIM_MAX_ATR_LEN 33
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/*! command-response pairs cases
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*
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* Enumeration used to identify the APDU structure based on command-response pair case , as specified in ISO/IEC 7816-3:2006(E) §12.1.
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*/
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enum osim_apdu_case {
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APDU_CASE_1, /*!< command header, no command data field, no response data field */
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APDU_CASE_2S, /*!< command header, no command data field, response data field (short) */
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APDU_CASE_2E, /*!< command header, no command data field, response data field (extended) */
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APDU_CASE_3S, /*!< command header, command data field (short), no response data field */
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APDU_CASE_3E, /*!< command header, command data field (extended), no response data field */
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APDU_CASE_4S, /*!< command header, command data field (short), response data field (short) */
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APDU_CASE_4E /*!< command header, command data field (extended), response data field (extended) */
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};
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/*! APDU/TPDU command header
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*
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* This structure encode an APDU/TPDU command header, as specified in ISO/IEC 7816-3:2006(E) §12.2 and §12.3.
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* The APDU (application layer) can be encoded as different TPDUs (transport layer), depending on the transport protocol used.
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* The TPDU encoding by T=1 of the APDU command header is identical to the APDU.
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* The TPDU encoding by T=0 of the APDU command header adds a Parameter 3 field, generally used instead of Lc/Le.
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*
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* @todo have different structures for APDU, TPDU by T=0, and TPDU by T=1.
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*/
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struct osim_apdu_cmd_hdr {
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uint8_t cla; /*!< CLASS byte */
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uint8_t ins; /*!< INSTRUCTION byte */
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uint8_t p1; /*!< Parameter 1 byte */
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uint8_t p2; /*!< Parameter 2 byte */
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uint8_t p3; /*!< Parameter 3 byte, used for TPDU by T=0 */
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} __attribute__ ((packed));
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#define msgb_apdu_dr(__x)
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/*! APDU command body
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*
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* This structure encode a command body, as specified in ISO/IEC 7816-3:2006(E) §12.1.
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* The data and response contents should be provided along with this structure.
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*/
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struct osim_msgb_cb {
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enum osim_apdu_case apduc; /*!< command-response pair case, defining the encoding of Lc and Le */
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uint16_t lc; /*!< number of bytes in the command data field Nc, which will encoded in 0, 1 or 3 bytes into Lc, depending on the case */
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uint16_t le; /*!< maximum number of bytes expected in the response data field, which will encoded in 0, 1, 2 or 3 bytes into Le, depending on the case */
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uint16_t sw; /*!< status word, composed of SW1 and SW2 bytes */
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} __attribute__((__may_alias__));
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#define OSIM_MSGB_CB(__msgb) ((struct osim_msgb_cb *)&((__msgb)->cb[0]))
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/*! status word from msgb->cb */
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#define msgb_apdu_case(__x) OSIM_MSGB_CB(__x)->apduc
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#define msgb_apdu_lc(__x) OSIM_MSGB_CB(__x)->lc
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#define msgb_apdu_le(__x) OSIM_MSGB_CB(__x)->le
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#define msgb_apdu_sw(__x) OSIM_MSGB_CB(__x)->sw
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/*! pointer to the command header of the APDU */
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#define msgb_apdu_h(__x) ((struct osim_apdu_cmd_hdr *)(__x)->l2h)
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#define msgb_apdu_dc(__x) ((__x)->l2h + sizeof(struct osim_apdu_cmd_hdr))
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#define msgb_apdu_de(__x) ((__x)->l2h + sizeof(struct osim_apdu_cmd_hdr) + msgb_apdu_lc(__x))
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int osim_init(void *ctx);
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/* FILES */
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struct osim_file;
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struct osim_file_desc;
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struct osim_decoded_data;
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/*! Operations for a given File */
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struct osim_file_ops {
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/*! Parse binary file data into osim_decoded_data */
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int (*parse)(struct osim_decoded_data *dd,
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const struct osim_file_desc *desc,
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int len, uint8_t *data);
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/*! Encode osim_decoded_data into binary file */
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struct msgb * (*encode)(const struct osim_file_desc *desc,
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const struct osim_decoded_data *decoded);
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};
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enum osim_element_type {
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ELEM_T_NONE,
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ELEM_T_BOOL, /*!< a boolean flag */
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ELEM_T_UINT8, /*!< unsigned integer */
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ELEM_T_UINT16, /*!< unsigned integer */
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ELEM_T_UINT32, /*!< unsigned integer */
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ELEM_T_STRING, /*!< generic string */
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ELEM_T_BCD, /*!< BCD encoded digits */
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ELEM_T_BYTES, /*!< BCD encoded digits */
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ELEM_T_GROUP, /*!< group container, has siblings */
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};
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enum osim_element_repr {
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ELEM_REPR_NONE,
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ELEM_REPR_DEC,
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ELEM_REPR_HEX,
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};
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/*! A single decoded element inside a file */
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struct osim_decoded_element {
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struct llist_head list;
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enum osim_element_type type;
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enum osim_element_repr representation;
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const char *name;
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unsigned int length;
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union {
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uint8_t u8;
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uint16_t u16;
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uint32_t u32;
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uint8_t *buf;
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/*! A list of sibling decoded_items */
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struct llist_head siblings;
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} u;
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};
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/*! Decoded data for a single file, consisting of all decoded elements */
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struct osim_decoded_data {
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/*! file to which we belong */
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const struct osim_file *file;
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/*! list of 'struct decoded_element' */
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struct llist_head decoded_elements;
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};
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enum osim_file_type {
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TYPE_NONE,
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TYPE_DF, /*!< Dedicated File */
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TYPE_ADF, /*!< Application Dedicated File */
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TYPE_EF, /*!< Entry File */
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TYPE_EF_INT, /*!< Internal Entry File */
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TYPE_MF, /*!< Master File */
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};
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enum osim_ef_type {
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EF_TYPE_TRANSP, /*!< Transparent EF */
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EF_TYPE_RECORD_FIXED, /*!< Fixed-Size Record EF */
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EF_TYPE_RECORD_CYCLIC, /*!< Cyclic Record EF */
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EF_TYPE_KEY, /*!< Key file as used in TETRA */
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};
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#define F_OPTIONAL 0x0001
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#define SFI_NONE 0xFF
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struct osim_file_desc {
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struct llist_head list; /*!< local element in list */
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struct llist_head child_list; /*!< list of children EF in DF */
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struct osim_file_desc *parent; /*!< parent DF */
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enum osim_file_type type; /*!< Type of the file (EF, DF, ...) */
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enum osim_ef_type ef_type; /*!< Type of the EF, if type == TYPE_EF */
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uint16_t fid; /*!< File Identifier */
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uint8_t sfid; /*!< Short File IDentifier */
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const uint8_t *df_name;
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uint8_t df_name_len;
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const char *short_name; /*!< Short Name (like EF.ICCID) */
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const char *long_name; /*!< Long / description */
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unsigned int flags;
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struct osim_file_ops ops; /*!< Operations (parse/encode */
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struct {
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size_t min; /*!< Minimum size of the file
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(transparent) or record in
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cyclic / linear file */
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size_t rec; /*!< Recommended size */
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} size;
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};
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/*! A single instance of a file: Descriptor and contents */
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struct osim_file {
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/*! Descriptor for the file */
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const struct osim_file_desc *desc;
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/*! Encoded file contents */
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struct msgb *encoded_data;
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/*! Parsed/Decoded file contents */
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struct osim_decoded_data *decoded_data;
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};
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/*! Convenience macros for defining EF */
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#define EF(pfid, sfi, pns, pflags, pnl, ptype, smin, srec, pdec, penc) \
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{ \
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.fid = pfid, \
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.sfid = sfi, \
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.type = TYPE_EF, \
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.ef_type = ptype, \
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.short_name = pns, \
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.long_name = pnl, \
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.flags = pflags, \
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.ops = { .encode = penc, .parse = pdec }, \
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.size = { .min = smin, .rec = srec}, \
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}
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/*! Convenience macros for defining EF */
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#define EF_TRANSP(fid, sfi, ns, flags, smin, srec, nl, dec, enc) \
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EF(fid, sfi, ns, flags, nl, EF_TYPE_TRANSP, \
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smin, srec, dec, enc)
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/*! Convenience macros for defining EF */
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#define EF_TRANSP_N(fid, sfi, ns, flags, smin, srec, nl) \
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EF_TRANSP(fid, sfi, ns, flags, smin, srec, \
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nl, &default_decode, NULL)
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/*! Convenience macros for defining EF */
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#define EF_CYCLIC(fid, sfi, ns, flags, smin, srec, nl, dec, enc) \
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EF(fid, sfi, ns, flags, nl, EF_TYPE_RECORD_CYCLIC, \
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smin, srec, dec, enc)
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/*! Convenience macros for defining EF */
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#define EF_CYCLIC_N(fid, sfi, ns, flags, smin, srec, nl) \
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EF_CYCLIC(fid, sfi, ns, flags, smin, srec, nl, \
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&default_decode, NULL)
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/*! Convenience macros for defining EF */
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#define EF_LIN_FIX(fid, sfi, ns, flags, smin, srec, nl, dec, enc) \
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EF(fid, sfi, ns, flags, nl, EF_TYPE_RECORD_FIXED, \
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smin, srec, dec, enc)
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/*! Convenience macros for defining EF */
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#define EF_LIN_FIX_N(fid, sfi, ns, flags, smin, srec, nl) \
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EF_LIN_FIX(fid, sfi, ns, flags, smin, srec, nl, \
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&default_decode, NULL)
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/*! Convenience macros for defining EF */
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#define EF_KEY(fid, sfi, ns, flags, smin, srec, nl, dec, enc) \
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EF(fid, sfi, ns, flags, nl, EF_TYPE_KEY, \
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smin, srec, dec, enc)
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/*! Convenience macros for defining EF */
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#define EF_KEY_N(fid, sfi, ns, flags, smin, srec, nl) \
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EF_KEY(fid, sfi, ns, flags, smin, srec, nl, \
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&default_decode, NULL)
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struct osim_file_desc *
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osim_file_desc_find_name(struct osim_file_desc *parent, const char *name);
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struct osim_file_desc *
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osim_file_desc_find_aid(struct osim_file_desc *parent, const uint8_t *aid, uint8_t aid_len);
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struct osim_file_desc *
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osim_file_desc_find_fid(struct osim_file_desc *parent, uint16_t fid);
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struct osim_file_desc *
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osim_file_desc_find_sfid(struct osim_file_desc *parent, uint8_t sfid);
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/* STATUS WORDS */
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enum osim_card_sw_type {
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SW_TYPE_NONE,
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SW_TYPE_STR,
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};
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enum osim_card_sw_class {
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SW_CLS_NONE,
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SW_CLS_OK,
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SW_CLS_POSTP,
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SW_CLS_WARN,
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SW_CLS_ERROR,
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};
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/*! A card status word (SW) */
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struct osim_card_sw {
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/*! status word code (2 bytes) */
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uint16_t code;
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/*! status word mask (2 bytes), to match range/prefix of SW */
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uint16_t mask;
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enum osim_card_sw_type type;
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enum osim_card_sw_class class;
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union {
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/*! Human-readable meaning of SW */
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const char *str;
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} u;
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};
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#define OSIM_CARD_SW_LAST { \
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.code = 0, .mask = 0, .type = SW_TYPE_NONE, \
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.class = SW_CLS_NONE, .u.str = NULL \
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}
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/*! A card application (e.g. USIM, ISIM, HPSIM) */
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struct osim_card_app_profile {
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/*! entry in the global list of card application profiles */
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struct llist_head list;
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/*! human-readable name */
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const char *name;
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/*! AID of this application, as used in EF.DIR */
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uint8_t aid[MAX_AID_LEN];
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uint8_t aid_len;
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/*! file system description */
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struct osim_file_desc *adf;
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/*! Status words defined by application */
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const struct osim_card_sw *sw;
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};
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const struct osim_card_app_profile *
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osim_app_profile_find_by_name(const char *name);
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const struct osim_card_app_profile *
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osim_app_profile_find_by_aid(const uint8_t *aid, uint8_t aid_len);
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const struct osim_card_sw *osim_app_profile_find_sw(const struct osim_card_app_profile *ap, uint16_t sw_in);
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/*! A card profile (e.g. SIM card */
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struct osim_card_profile {
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const char *name;
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/*! Descriptor for the MF (root directory */
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struct osim_file_desc *mf;
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/*! Array of pointers to status words */
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const struct osim_card_sw **sws;
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};
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const struct osim_card_sw *osim_cprof_find_sw(const struct osim_card_profile *cp, uint16_t sw_in);
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struct osim_chan_hdl;
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enum osim_card_sw_class osim_sw_class(const struct osim_chan_hdl *ch, uint16_t sw_in);
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char *osim_print_sw_buf(char *buf, size_t buf_len, const struct osim_chan_hdl *ch, uint16_t sw_in);
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char *osim_print_sw(const struct osim_chan_hdl *ch, uint16_t sw_in);
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char *osim_print_sw_c(const void *ctx, const struct osim_chan_hdl *ch, uint16_t sw_in);
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extern const struct tlv_definition ts102221_fcp_tlv_def;
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extern const struct value_string ts102221_fcp_vals[14];
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/* 11.1.1.3 */
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enum ts102221_fcp_tag {
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UICC_FCP_T_FCP = 0x62,
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UICC_FCP_T_FILE_SIZE = 0x80,
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UICC_FCP_T_TOT_F_SIZE = 0x81,
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UICC_FCP_T_FILE_DESC = 0x82,
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UICC_FCP_T_FILE_ID = 0x83,
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UICC_FCP_T_DF_NAME = 0x84,
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UICC_FCP_T_SFID = 0x88,
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UICC_FCP_T_LIFEC_STS = 0x8A,
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UICC_FCP_T_SEC_ATTR_REFEXP= 0x8B,
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UICC_FCP_T_SEC_ATTR_COMP= 0x8C,
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UICC_FCP_T_PROPRIETARY = 0xA5,
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UICC_FCP_T_SEC_ATTR_EXP = 0xAB,
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UICC_FCP_T_PIN_STS_DO = 0xC6,
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};
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struct msgb *osim_new_apdumsg(uint8_t cla, uint8_t ins, uint8_t p1,
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uint8_t p2, uint16_t lc, uint16_t le);
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/* CARD READERS */
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enum osim_proto {
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OSIM_PROTO_T0 = 0,
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OSIM_PROTO_T1 = 1,
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};
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enum osim_reader_driver {
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OSIM_READER_DRV_PCSC = 0,
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OSIM_READER_DRV_OPENCT = 1,
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OSIM_READER_DRV_SERIAL = 2,
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};
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struct osim_reader_ops {
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const char *name;
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struct osim_reader_hdl *(*reader_open)(int idx, const char *name, void *ctx);
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struct osim_card_hdl *(*card_open)(struct osim_reader_hdl *rh, enum osim_proto proto);
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int (*card_reset)(struct osim_card_hdl *card, bool cold_reset);
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int (*card_close)(struct osim_card_hdl *card);
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int (*transceive)(struct osim_reader_hdl *rh, struct msgb *msg);
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};
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struct osim_reader_hdl {
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/*! member in global list of readers */
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struct llist_head list;
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const struct osim_reader_ops *ops;
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uint32_t proto_supported;
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void *priv;
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/*! current card, if any */
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struct osim_card_hdl *card;
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};
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/*! descriptor for a given application present on a card */
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struct osim_card_app_hdl {
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/*! member in card list of applications */
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struct llist_head list;
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/*! AID of the application */
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uint8_t aid[MAX_AID_LEN];
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uint8_t aid_len;
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/*! application label from EF_DIR */
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char *label;
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/*! application profile (if any known) */
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const struct osim_card_app_profile *prof;
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};
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struct osim_card_hdl {
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/*! member in global list of cards */
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struct llist_head list;
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/*! reader through which card is accessed */
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struct osim_reader_hdl *reader;
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/*! card profile */
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struct osim_card_profile *prof;
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/*! card protocol */
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enum osim_proto proto;
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/*! list of channels for this card */
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struct llist_head channels;
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/*! list of applications found on card */
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struct llist_head apps;
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/*! ATR (Answer To Reset) of the card */
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uint8_t atr[OSIM_MAX_ATR_LEN];
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unsigned int atr_len;
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};
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struct osim_chan_hdl {
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/*! linked to card->channels */
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struct llist_head list;
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/*! card to which this channel belongs */
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struct osim_card_hdl *card;
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/*! current working directory */
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const struct osim_file_desc *cwd;
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/*! currently selected application (if any) */
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struct osim_card_app_hdl *cur_app;
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};
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int osim_card_hdl_add_app(struct osim_card_hdl *ch, const uint8_t *aid, uint8_t aid_len,
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const char *label);
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/* reader.c */
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int osim_transceive_apdu(struct osim_chan_hdl *st, struct msgb *amsg);
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struct osim_reader_hdl *osim_reader_open(enum osim_reader_driver drv, int idx,
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const char *name, void *ctx);
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struct osim_card_hdl *osim_card_open(struct osim_reader_hdl *rh, enum osim_proto proto);
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int osim_card_reset(struct osim_card_hdl *card, bool cold_reset);
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int osim_card_close(struct osim_card_hdl *card);
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