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module-dvbapi.h
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module-dvbapi.h
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#ifndef MODULE_DVBAPI_H_
#define MODULE_DVBAPI_H_
#ifdef HAVE_DVBAPI
#include <sys/un.h>
#define TYPE_ECM 1
#define TYPE_EMM 2
#define TYPE_SDT 3
#define TYPE_PAT 4
#define TYPE_PMT 5
#define TYPE_CAT 6
// api
#define DVBAPI_3 0
#define DVBAPI_1 1
#define STAPI 2
#define COOLAPI 3
#define GXAPI 4
#ifdef __CYGWIN__
#define TMPDIR "./"
#define STANDBY_FILE "./.pausencam"
#define ECMINFO_FILE "./ecm.info"
#else
#define TMPDIR "/tmp/"
#define STANDBY_FILE "/tmp/.pausencam"
#define ECMINFO_FILE "/tmp/ecm.info"
#endif
#define BOX_COUNT 8
#define BOXTYPE_DREAMBOX 1
#define BOXTYPE_DUCKBOX 2
#define BOXTYPE_UFS910 3
#define BOXTYPE_DBOX2 4
#define BOXTYPE_IPBOX 5
#define BOXTYPE_IPBOX_PMT 6
#define BOXTYPE_DM7000 7
#define BOXTYPE_QBOXHD 8
#define BOXTYPE_COOLSTREAM 9
#define BOXTYPE_NEUMO 10
#define BOXTYPE_PC 11
#define BOXTYPE_PC_NODMX 12
#define BOXTYPE_SAMYGO 13
#define BOXTYPES 13
#define DMXMD5HASHSIZE 16 // use MD5()
// we store the results of remove_streampid_from_list()
// and update_streampid_list() in one variable, so make sure
// the return values do not collide
// remove_streampid_from_list()
#define NO_STREAMPID_LISTED 0x00
#define REMOVED_STREAMPID_INDEX 0x01
#define REMOVED_STREAMPID_LASTINDEX 0x02
#define REMOVED_DECODING_STREAMPID_INDEX 0x03
// update_streampid_list():
#define FOUND_STREAMPID_INDEX 0x10
#define ADDED_STREAMPID_INDEX 0x11
#define FIRST_STREAMPID_INDEX 0x12
// remove_streampid_from_list() and update_streampid_list()
#define INVALID_STREAMPID_INDEX 0x20
#define INDEX_DISABLE_ALL 0xEFFFFFFD // used for remove_streampid_from_list(), dvbapi_set_pid()
#define INDEX_INVALID 0xEFFFFFFF
#define DUMMY_FD 0xFFFF
//-----------------------------------------------------------------------------
// constants used in socket communication
//-----------------------------------------------------------------------------
#define DVBAPI_PROTOCOL_VERSION 3
#define DVBAPI_MAX_PACKET_SIZE 262 // maximum possible packet size
#define DVBAPI_CA_GET_DESCR_INFO 0x80086F83
#define DVBAPI_CA_SET_DESCR 0x40106F86
#define DVBAPI_CA_SET_PID 0x40086F87
#define DVBAPI_CA_SET_DESCR_MODE 0x400C6F88
#define DVBAPI_CA_SET_DESCR_DATA 0x40186F89
//#define DVBAPI_DMX_START 0x00006F29 // in case we ever need this
#define DVBAPI_DMX_STOP 0x00006F2A
#define DVBAPI_DMX_SET_FILTER 0x403C6F2B
#define DVBAPI_AOT_CA 0x9F803000
#define DVBAPI_AOT_CA_PMT 0x9F803200 //least significant byte is length (ignored)
#define DVBAPI_AOT_CA_STOP 0x9F803F04
#define DVBAPI_FILTER_DATA 0xFFFF0000
#define DVBAPI_CLIENT_INFO 0xFFFF0001
#define DVBAPI_SERVER_INFO 0xFFFF0002
#define DVBAPI_ECM_INFO 0xFFFF0003
#define DVBAPI_INDEX_DISABLE 0xFFFFFFFF // only used for ca_pid_t
//-----------------------------------------------------------------------------
// CA PMT defined values according to EN 50221
// https://www.dvb.org/resources/public/standards/En50221.V1.pdf
// https://www.dvb.org/resources/public/standards/R206-001.V1.pdf
//-----------------------------------------------------------------------------
// ca_pmt_list_management: This parameter is used to indicate whether the user has selected a single program or several
// programs. The following values can be used:
#define CA_PMT_LIST_MORE 0x00 // The CA PMT object is neither the first one, nor the last one of the list.
#define CA_PMT_LIST_FIRST 0x01 // The CA PMT object is the first one of a new list of more than one CA PMT object.
// All previously selected programs are being replaced by the programs of the new list.
#define CA_PMT_LIST_LAST 0x02 // The CA PMT object is the last of the list.
#define CA_PMT_LIST_ONLY 0x03 // The list is made of a single CA PMT object.
#define CA_PMT_LIST_ADD 0x04 // The CA PMT has to be added to an existing list, that is, a new program has been seleced
// by the user, but all previously selected programs remain selected.
#define CA_PMT_LIST_UPDATE 0x05 // The CA PMT of a program already in the list is sent again because the version_number or
// the current_next_indicator has changed.
// ca_pmt_cmd_id: This parameter indicates what response is required from the application to a CA PMT object. It can
// take the following values:
#define CA_PMT_CMD_OK_DESCRAMBLING 0x01 // The host does not expect answer to the CA PMT and the application can start
// descrambling the program or start an MMI dialogue immediately.
#define CA_PMT_CMD_OK_MMI 0x02 // The application can start an MMI dialogue, but shall not start descrambling
// before reception of a new CA PMT object with "ca_pmt_cmd_id" set to
// "ok_descrambling". In this case the host shall quarantee that an MMI session
// can be opened by the CA application.
#define CA_PMT_CMD_QUERY 0x03 // The host expects to receive a CA PMT reply. In this case, the applicaiton is
// not allowed to start descrambling or MMI dialogue before reception of a new
// CA PMT object with "ca_pmt_cmd_id" set to "ok_descrambling or "ok_mmi".
#define CA_PMT_CMD_NOT_SELECTED 0x04 // It indicates to the CA application that the host no longer requires that CA
// application to attempt to descramble the service. The CA application shall
// close any MMI dialogue it has opened.
//----------------
// ca descriptors
//----------------
#define CA 0x09
#define ENIGMA_NAMESPACE 0x81
#define DEMUX_CA_MASK_ADAPTER 0x82 // deprecated - applications should use descriptors ADAPTER_DEVICE, DEMUX_DEVICE and CA_DEVICE instead
#define ADAPTER_DEVICE 0x83
#define PMT_PID 0x84
#define SERVICE_TYPE_MASK 0x85 // not used by NCam
#define DEMUX_DEVICE 0x86
#define CA_DEVICE 0x87
//-----------------------------------------------------------------------------
// api used for internal device communication
//-----------------------------------------------------------------------------
#define DMX_FILTER_SIZE 16
// The following is part of the linux dvb api (v1),
// but modifed to overcome some bugs in specific devices
typedef struct dmxFilter
{
uint8_t filter[DMX_FILTER_SIZE];
uint8_t mask[DMX_FILTER_SIZE];
} dmxFilter_t;
struct dmxSctFilterParams
{
uint16_t pid;
dmxFilter_t filter;
uint32_t timeout;
uint32_t flags;
#define DMX_CHECK_CRC 1
#define DMX_ONESHOT 2
#define DMX_IMMEDIATE_START 4
};
#define DMX_START1 _IOW('o', 41, int)
#define DMX_STOP1 _IOW('o', 42, int)
#define DMX_SET_FILTER1 _IOW('o', 43, struct dmxSctFilterParams *)
// The following is part of the linux dvb api
// https://www.kernel.org/doc/html/latest/media/uapi/dvb/demux.html
// https://github.com/torvalds/linux/blob/master/include/uapi/linux/dvb/dmx.h
typedef struct dmx_filter
{
uint8_t filter[DMX_FILTER_SIZE];
uint8_t mask[DMX_FILTER_SIZE];
uint8_t mode[DMX_FILTER_SIZE];
} dmx_filter_t;
struct dmx_sct_filter_params
{
uint16_t pid;
dmx_filter_t filter;
uint32_t timeout;
uint32_t flags;
#define DMX_CHECK_CRC 1
#define DMX_ONESHOT 2
#define DMX_IMMEDIATE_START 4
};
#define DMX_START _IO('o', 41)
#define DMX_STOP _IO('o', 42)
#define DMX_SET_FILTER _IOW('o', 43, struct dmx_sct_filter_params)
// The following is part of the linux dvb api
// https://www.kernel.org/doc/html/latest/media/uapi/dvb/ca.html
// https://github.com/torvalds/linux/blob/master/include/uapi/linux/dvb/ca.h
typedef struct ca_descr_info
{
uint32_t num;
uint32_t type; /* bitmask: 1 == ECD, 2 == NDS, 4 == DDS */
} ca_descr_info_t;
typedef struct ca_descr
{
uint32_t index;
uint32_t parity; /* 0 == even, 1 == odd */
uint8_t cw[8];
} ca_descr_t;
// ca_pid has been removed from the api, but we still use it
typedef struct ca_pid
{
uint32_t pid;
int32_t index; /* -1 == disable */
} ca_pid_t;
enum ca_descr_algo
{
CA_ALGO_DVBCSA,
CA_ALGO_DES,
CA_ALGO_AES128,
};
enum ca_descr_cipher_mode
{
CA_MODE_ECB,
CA_MODE_CBC,
};
// Structs "ca_descr_mode" and "ca_descr_data" and respective ioctl
// commands are part of a custom api
/*
* struct ca_descr_mode - Used to select a crypto algorithm and mode
* for a key slot.
*
* @index: Key slot allocated for a PID or service.
* See CA_SET_PID and struct ca_pid.
* @algo: Algorithm to select for @index.
* @cipher_mode: Cipher mode to use with @algo.
*/
typedef struct ca_descr_mode
{
uint32_t index;
enum ca_descr_algo algo;
enum ca_descr_cipher_mode cipher_mode;
} ca_descr_mode_t;
/*
* struct ca_descr_data - Used to write Keys and IVs to a descrambler.
*
* @index: Key slot allocated for a PID or service.
* See CA_SET_PID and struct ca_pid.
* @parity: Indicates even or odd parity for control words.
* @data_type: Key or IV.
* @length: Size of @data array; depends on selected algorithm and
* key or block size.
* @data: Pointer to variable @length key or initialization vector data.
*/
enum ca_descr_data_type
{
CA_DATA_IV,
CA_DATA_KEY,
};
enum ca_descr_parity
{
CA_PARITY_EVEN,
CA_PARITY_ODD,
};
typedef struct ca_descr_data
{
uint32_t index;
enum ca_descr_parity parity;
enum ca_descr_data_type data_type;
uint32_t length;
uint8_t *data;
} ca_descr_data_t;
#define CA_GET_DESCR_INFO _IOR('o', 131, ca_descr_info_t)
#define CA_SET_DESCR _IOW('o', 134, ca_descr_t)
#define CA_SET_PID _IOW('o', 135, ca_pid_t)
#define CA_SET_DESCR_MODE _IOW('o', 136, ca_descr_mode_t)
#define CA_SET_DESCR_DATA _IOW('o', 137, ca_descr_data_t)
//-----------------------------------------------------------------------------
// NCam defined structures
//-----------------------------------------------------------------------------
struct box_devices
{
char *path;
char *ca_device;
char *demux_device;
char *cam_socket_path;
int8_t api;
};
typedef struct filter_s
{
uint32_t fd; // filter handle
int32_t pidindex;
int32_t pid;
uint16_t caid;
uint32_t provid;
uint16_t type;
int32_t count;
uint8_t filter[16];
uint8_t mask[16];
uint8_t lastecmd5[CS_ECMSTORESIZE]; // last requested ecm md5
int32_t lastresult;
uint8_t prevecmd5[CS_ECMSTORESIZE]; // previous requested ecm md5
int32_t prevresult;
#if defined(WITH_STAPI) || defined(WITH_STAPI5)
int32_t NumSlots;
uint32_t SlotHandle[10];
uint32_t BufferHandle[10];
#endif
#ifdef WITH_EMU
uint32_t cadata;
#endif
} FILTERTYPE;
#ifdef WITH_EXTENDED_CW
#define MAX_STREAM_INDICES 32 // In practice, 5 is the maximum ever used
#else
#define MAX_STREAM_INDICES 1
#endif
#define CA_MAX 32 // Max ca devices supported by ncam - limited by sizeof(ca_mask) of struct demux_s (32 bits)
#define INDEX_MAX 64 // Max descramblers per ca device - limited by sizeof(activeindexers) of struct s_streampid (64 bits)
#define INDEX_MAX_LOCAL 16 // Max total descramblers to use for enigma2 and other STBs when dvbapi_get_descrambler_info() fails
#define INDEX_MAX_NET 64 // Max total descramblers to use for PC (VDR, Tvheadend, etc)
typedef struct s_ecmpid
{
uint16_t CAID;
uint32_t PROVID; // provider
uint16_t ECM_PID;
uint32_t CHID;
uint16_t EMM_PID;
uint32_t VPID; // video pid
uint8_t irdeto_maxindex; // max irdeto indices always fresh fetched from current ecm
uint8_t irdeto_curindex; // current irdeto index we want to handle
uint8_t irdeto_cycle; // temp var that holds the irdeto index we started with to detect if we cycled trough all indices
int8_t checked;
int8_t status;
uint8_t tries;
uint8_t table;
int8_t useMultipleIndices; // whether or not to use multiple indices for this ecm pid
uint32_t index[MAX_STREAM_INDICES]; // ca indices used for this ecm pid (index[0] holds ca index for STREAMmpids[0] and so on)
uint32_t streams; // bit mask of STREAMpids enabled for this ECMpid
uint32_t cadata;
#ifdef WITH_EMU
int16_t pvu_counter;
#endif
} ECMPIDTYPE;
typedef struct s_emmpid
{
uint16_t CAID;
uint32_t PROVID;
uint16_t PID;
uint8_t type;
uint32_t cadata;
} EMMPIDTYPE;
enum stream_type
{
STREAM_UNDEFINED,
STREAM_VIDEO,
STREAM_AUDIO,
STREAM_SUBTITLE
};
#ifdef WITH_GXAPI
#define MAX_DEMUX 16
#else
#define MAX_DEMUX 32 // Max number of demuxes supported by NCam - each channel/service occupies one demux
#endif
#define MAX_ECM_PIDS 24 // Max number of ECM pids per demux
#define MAX_EMM_PIDS 24 // Max number of EMM pids per demux
#define MAX_STREAM_PIDS 32 // Max number of pids other than ECM and EMM (e.g. audio, video, subtitle, etc) per demux (hardware descramblers might have a capacity of 30 pids)
#ifdef WITH_GXAPI
#define MAX_FILTER 48
#else
#define MAX_FILTER 64
#endif
#define MAX_ASSOC_FD MAX_DEMUX
#define PTINUM 10
#define SLOTNUM 20
typedef struct demux_s
{
int8_t demux_index; // ID of the (hardware) demux device carrying this program - we get this via CA PMT
int8_t adapter_index; // ID of the adapter device carrying this program - we get this via CA PMT
uint32_t ca_mask; // Bit mask of ca devices used for descrambling this program - we get this via CA PMT
int32_t socket_fd; // Connection identifier through which we received the CA PMT object
uint16_t client_proto_version;
FILTERTYPE demux_fd[MAX_FILTER];
int8_t ECMpidcount; // Count of ECM pids in this program
ECMPIDTYPE ECMpids[MAX_ECM_PIDS];
int8_t EMMpidcount; // Count of EMM pids in this program
EMMPIDTYPE EMMpids[MAX_EMM_PIDS];
struct timeb emmstart; // last time emm cat was started
uint16_t max_emm_filter;
int8_t STREAMpidcount;
uint16_t STREAMpids[MAX_STREAM_PIDS];
enum stream_type STREAMpidsType[MAX_STREAM_PIDS]; // type (audio, video, subtitle, etc) of the corresponding stream pid
int16_t pidindex; // ECMpid used for descrambling - holds index of the ECMpids[] array
int16_t curindex;
int8_t max_status;
uint16_t program_number; // also called service id (srvid)
uint16_t onid; // original network id
uint16_t tsid; // transport stream id
uint16_t pmtpid; // PMT pid for the program_number
uint32_t ens; // enigma namespace
uint8_t last_cw[MAX_STREAM_INDICES][2][16]; // even/odd pairs of 16 byte CWs used for descrambling on the last crypto period
int8_t emm_filter;
int8_t sdt_filter;
uint8_t hexserial[8];
struct s_reader *rdr;
char pmt_file[30];
time_t pmt_time;
bool stop_descrambling; // Program is marked to stop descrambling (not selected in the new CA PMT list)
bool running; // Descrambling is currently running for this program
uint8_t old_ecmfiltercount; // previous ecm filter count
uint8_t old_emmfiltercount; // previous emm filter count
pthread_mutex_t answerlock; // request mode 1 avoid race
int8_t init_mutex;
#ifdef WITH_STAPI
uint32_t DescramblerHandle[PTINUM];
int32_t desc_pidcount;
uint32_t slot_assc[PTINUM][SLOTNUM];
#endif
#ifdef WITH_STAPI5
uint32_t dev_index;
#endif
int8_t decodingtries; // -1 = first run
struct timeb decstart;
struct timeb decend;
} DEMUXTYPE;
typedef struct s_streampid
{
uint16_t streampid; // pid of this stream
uint8_t cadevice; // CA device used for descramlbing
uint32_t caindex; // index (slot) of the CA device used
uint64_t activeindexers; // bitmask indexers if streampid enabled for index, bit is set
bool use_des; // whether to use DES for descrambling this streampid
}STREAMPIDTYPE;
struct s_dvbapi_priority
{
char type; // can be 'p', 'i', 'm', 'd', 's', 'l', 'j', 'a' or 'x'
uint16_t caid;
uint32_t provid;
uint16_t srvid;
uint32_t chid;
uint16_t ecmpid;
uint32_t cadata;
uint16_t mapcaid;
uint32_t mapprovid;
uint16_t mapecmpid;
int16_t delay;
int8_t force;
int8_t pidx;
#if defined(WITH_STAPI) || defined(WITH_STAPI5)
char devname[30];
char pmtfile[30];
int8_t disablefilter;
#endif
// struct s_dvbapi_priority *last;
struct s_dvbapi_priority *next;
};
//-----------------------------------------------------------------------------
// function declarations
//-----------------------------------------------------------------------------
void dvbapi_stop_descrambling(int32_t demux_id, uint32_t msgid);
void dvbapi_stop_all_descrambling(uint32_t msgid);
void dvbapi_process_input(int32_t demux_id, int32_t filter_num, uint8_t *buffer, int32_t len, uint32_t msgid);
int32_t dvbapi_open_device(int32_t, int32_t, int);
int32_t dvbapi_stop_filternum(int32_t demux_id, int32_t num, uint32_t msgid);
int32_t dvbapi_stop_filter(int32_t demux_id, int32_t type, uint32_t msgid);
struct s_dvbapi_priority *dvbapi_check_prio_match(int32_t demux_id, int32_t pidindex, char type);
//void dvbapi_adjust_prioritytab(int demux_index);
//void dvbapi_write_prio(void);
void dvbapi_send_dcw(struct s_client *client, ECM_REQUEST *er);
void dvbapi_write_cw(int32_t demux_id, int32_t pid, int32_t stream_id, uint8_t *cw, uint8_t cw_length, uint8_t *iv, uint8_t iv_length, enum ca_descr_algo algo, enum ca_descr_cipher_mode cipher_mode, uint32_t msgid);
int32_t dvbapi_parse_capmt(const uint8_t *buffer, uint32_t length, int32_t connfd, char *pmtfile, uint16_t client_proto_version, uint32_t msgid);
void request_cw(struct s_client *client, ECM_REQUEST *er, int32_t demux_id, uint8_t delayed_ecm_check);
void dvbapi_try_next_caid(int32_t demux_id, int8_t checked, uint32_t msgid);
void dvbapi_read_priority(void);
int32_t dvbapi_set_section_filter(int32_t demux_id, ECM_REQUEST *er, int32_t n);
int32_t dvbapi_activate_section_filter(int32_t demux_id, int32_t num, int32_t fd, int32_t pid, uint8_t *filter, uint8_t *mask, uint32_t msgid);
int32_t dvbapi_check_ecm_delayed_delivery(int32_t demux_id, ECM_REQUEST *er);
int32_t dvbapi_get_filternum(int32_t demux_id, ECM_REQUEST *er, int32_t type);
uint32_t dvbapi_ca_set_pid(int32_t demux_id, int32_t pid, int32_t stream_id, bool use_des, uint32_t msgid);
void dvbapi_set_pid(int32_t demux_id, int32_t num, uint32_t idx, bool enable, bool use_des, uint32_t msgid);
int8_t update_streampid_list(uint8_t cadevice, uint16_t pid, uint32_t idx, bool use_des);
int8_t remove_streampid_from_list(uint8_t cadevice, uint16_t pid, uint32_t idx);
void disable_unused_streampids(int16_t demux_id);
uint32_t is_ca_used(uint8_t cadevice, int32_t pid);
uint32_t count_active_indexers(void);
uint16_t dvbapi_get_client_proto_version(void);
const char *dvbapi_get_client_name(void);
void rotate_emmfilter(int32_t demux_id);
int32_t filtermatch(uint8_t *buffer, int32_t filter_num, int32_t demux_id, int32_t len);
void delayer(ECM_REQUEST *er, uint32_t delay);
void check_add_emmpid(int32_t demux_id, uint8_t *filter, int32_t l, int32_t emmtype);
void *dvbapi_start_handler(struct s_client *cl, uint8_t *mbuf, int32_t module_idx, void * (*_main_func)(void *));
uint32_t dvbapi_get_desc_index(int32_t demux_id, int32_t pid, int32_t stream_id);
void dvbapi_write_ecminfo_file(struct s_client *client, ECM_REQUEST *er, uint8_t *lastcw0, uint8_t *lastcw1, uint8_t cw_length);
#if defined(WITH_AZBOX) || defined(WITH_MCA)
#define USE_OPENXCAS 1
extern int32_t openxcas_provid;
extern uint16_t openxcas_sid, openxcas_caid, openxcas_ecm_pid;
static inline void openxcas_set_caid(uint16_t _caid) { openxcas_caid = _caid; }
static inline void openxcas_set_ecm_pid(uint16_t _pid) { openxcas_ecm_pid = _pid; }
static inline void openxcas_set_sid(uint16_t _sid) { openxcas_sid = _sid; }
static inline void openxcas_set_provid(uint32_t _provid) { openxcas_provid = _provid; }
#else
#define USE_OPENXCAS 0
static inline void openxcas_set_caid(uint16_t UNUSED(_caid)) { }
static inline void openxcas_set_ecm_pid(uint16_t UNUSED(_pid)) { }
static inline void openxcas_set_sid(uint16_t UNUSED(_sid)) { }
static inline void openxcas_set_provid(uint32_t UNUSED(_provid)) { }
#endif
bool is_dvbapi_usr(char *usr);
static inline bool module_dvbapi_enabled(void) { return cfg.dvbapi_enabled; }
#else
static inline void dvbapi_stop_all_descrambling(uint32_t UNUSED(msgid)) { }
static inline void dvbapi_read_priority(void) { }
static inline bool is_dvbapi_usr(char *UNUSED(usr)) { return 0; }
static inline bool module_dvbapi_enabled(void) { return 0; }
#endif // WITH_DVBAPI
#endif // MODULE_DVBAPI_H_