CI/CA Patch - please test
Florian Lohoff
flo at rfc822.org
Tue Feb 10 21:25:07 CET 2009
Hi,
its mostly 2 months later and nobody objected or gave feedback to the
code... I am wondering if anyone is still keen on using CI/CAM stuff?
On Fri, Dec 19, 2008 at 10:17:08AM +0100, Florian Lohoff wrote:
> Hi,
> probably someone is able to test this - i refactored a CI patch i got to
> use more internal infrastructure and be more like my preferred coding
> style. Its against current gits head and needs some libs from the libdvb
> family - In Debian its installing dvb-utils:
> diff --git a/Makefile b/Makefile
> index 345a635..1a6a6f6 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1,7 +1,7 @@
> CC=gcc
> -CFLAGS=-O0 -g -Wall -I. -I/usr/include/glib-2.0/ -I/usr/lib/glib-2.0/include/
> -LDFLAGS=-levent -lglib-2.0 -lpthread
> -OBJ-getstream=getstream.o fe.o crc32.o \
> +CFLAGS=-O0 -g -Wall -I. -I/usr/include/glib-2.0/ -I/usr/lib/glib-2.0/include/ -D_GNU_SOURCE
> +LDFLAGS=-levent -lglib-2.0 -lpthread -ldvben50221 -ldvbapi -lucsi
> +OBJ-getstream=getstream.o ca.o fe.o crc32.o \
> libhttp.o libconf.o config.o util.o logging.o \
> stream.o input.o \
> output.o output_http.o output_udp.o output_pipe.o output_rtp.o \
> diff --git a/ca.c b/ca.c
> new file mode 100644
> index 0000000..ebbff8b
> --- /dev/null
> +++ b/ca.c
> @@ -0,0 +1,370 @@
> +#include <stdlib.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +#include <poll.h>
> +#include <errno.h>
> +
> +#include <libdvben50221/en50221_stdcam.h>
> +
> +#include <libucsi/section.h>
> +#include <libucsi/mpeg/section.h>
> +#include <libucsi/dvb/section.h>
> +
> +#include <libdvbapi/dvbdemux.h>
> +#include <libdvbapi/dvbca.h>
> +
> +#include <pthread.h>
> +#include <sys/types.h>
> +
> +#include <sys/syscall.h>
> +#include <sched.h>
> +
> +#include <glib.h>
> +
> +#include "getstream.h"
> +#include "ca.h"
> +
> +static void *ca_monitor(void *arg);
> +
> +/* TODO: old fashioned callbacks, need some work */
> +void send_mmi_menu_answ(void *value) {
> + /*
> + int val = (int)value;
> + intca_t *this = (intca_t*)ui.mmimenu->ca;
> + en50221_app_mmi_menu_answ(this->stdcam->mmi_resource,
> + ui.mmimenu->session_number,
> + val);
> + */
> + /* FIXME: IMPLEMENT ME! */
> +
> +}
> +
> +void send_mmi_answ(uint8_t * value, int length) {
> + /*
> + intca_t *this = (intca_t*)ui.pin_query->ca;
> + en50221_app_mmi_answ(this->stdcam->mmi_resource,
> + this->stdcam->mmi_session_number,
> + MMI_ANSW_ID_ANSWER, value,
> + length);
> + */
> +
> + /* FIXME: IMPELEMENT ME! */
> +}
> +
> +void open_mmi_menu(void *ca) {
> + struct intca_s *intca=ca;
> + int ret;
> +
> + ret=en50221_app_ai_entermenu(intca->stdcam->ai_resource,
> + intca->stdcam->ai_session_number);
> +
> + logwrite(LOG_INFO, "Enter CI-Menu! %d, %d, %d", ret,
> + intca->stdcam->ai_session_number,
> + intca->stdcam->mmi_session_number);
> +}
> +
> +/* ends here */
> +
> +static int ai_callback(void *arg, uint8_t slot_id, uint16_t session_number,
> + uint8_t application_type,
> + uint16_t application_manufacturer,
> + uint16_t manufacturer_code, uint8_t menu_string_length,
> + uint8_t * menu_string) {
> +
> + logwrite(LOG_INFO, "CAM %d Application type: %02x", slot_id,
> + application_type);
> + logwrite(LOG_INFO, "CAM %d Application manufacturer: %04x", slot_id,
> + application_manufacturer);
> + logwrite(LOG_INFO, "CAM %d Manufacturer code: %04x", slot_id,
> + manufacturer_code);
> + logwrite(LOG_INFO, "CAM %d Menu string: %.*s", slot_id,
> + menu_string_length, menu_string);
> +
> + return 0;
> +}
> +
> +static int ca_info_callback(void *arg, uint8_t slot_id,
> + uint16_t session_number, uint32_t ca_id_count,
> + uint16_t *ca_ids) {
> +
> + struct intca_s *intca=arg;
> + int i;
> +
> + logwrite(LOG_INFO, "CAM %d supports the following ca system ids:",
> + slot_id);
> +
> + for(i=0;i<ca_id_count;i++)
> + logwrite(LOG_INFO, " 0x%04x\n", ca_ids[i]);
> +
> + intca->ca_resource_connected = 1;
> + return 0;
> +}
> +
> +static int mmi_close_callback(void *arg, uint8_t slot_id,
> + uint16_t session_number, uint8_t cmd_id,
> + uint8_t delay) {
> +
> + /*
> + * FIXME close some menu
> + * note: not entirely correct as its supposed to delay if asked
> + */
> + return 0;
> +}
> +
> +static int mmi_display_control_callback(void *arg, uint8_t slot_id,
> + uint16_t session_number,
> + uint8_t cmd_id, uint8_t mmi_mode) {
> +
> + struct en50221_app_mmi_display_reply_details reply;
> + struct intca_s *intca=arg;
> +
> + /* don't support any commands but set mode */
> +
> + if(cmd_id != MMI_DISPLAY_CONTROL_CMD_ID_SET_MMI_MODE) {
> +
> + en50221_app_mmi_display_reply(intca->stdcam->mmi_resource,
> + session_number,
> + MMI_DISPLAY_REPLY_ID_UNKNOWN_CMD_ID,
> + &reply);
> +
> + return 0;
> + }
> +
> + /* we only support high level mode */
> + if(mmi_mode != MMI_MODE_HIGH_LEVEL) {
> +
> + en50221_app_mmi_display_reply(intca->stdcam->mmi_resource,
> + session_number,
> + MMI_DISPLAY_REPLY_ID_UNKNOWN_MMI_MODE,
> + &reply);
> +
> + return 0;
> + }
> +
> + /* ack the high level open */
> + reply.u.mode_ack.mmi_mode=mmi_mode;
> + en50221_app_mmi_display_reply(intca->stdcam->mmi_resource,
> + session_number,
> + MMI_DISPLAY_REPLY_ID_MMI_MODE_ACK,
> + &reply);
> +
> + return 0;
> +}
> +
> +static int mmi_enq_callback(void *arg, uint8_t slot_id,
> + uint16_t session_number, uint8_t blind_answer,
> + uint8_t expected_answer_length, uint8_t * text,
> + uint32_t text_size) {
> + struct intca_s *intca=arg;
> +
> + en50221_app_mmi_answ(intca->stdcam->mmi_resource,
> + intca->stdcam->mmi_session_number,
> + MMI_ANSW_ID_CANCEL, NULL, 0);
> +
> + /*
> + * FIXME handle the enquiry somehow
> + * probably best solution would be calling a user-configurable
> + * script, so that pins can be handled
> + */
> +
> + return 0;
> +}
> +
> +
> +static int mmi_menu_callback(void *arg, uint8_t slot_id,
> + uint16_t session_number,
> + struct en50221_app_mmi_text *title,
> + struct en50221_app_mmi_text *sub_title,
> + struct en50221_app_mmi_text *bottom,
> + uint32_t item_count,
> + struct en50221_app_mmi_text *items,
> + uint32_t item_raw_length, uint8_t * items_raw) {
> +
> + struct intca_s *intca=arg;
> +
> + logwrite(LOG_INFO, "MMI menu callback %d", session_number);
> +
> + /* FIXME handle the menu - for now just answer with 0x01 */
> + if(1) {
> + en50221_app_mmi_menu_answ(intca->stdcam->mmi_resource,
> + intca->stdcam->mmi_session_number,
> + 0x01);
> +
> + return 0;
> + }
> +
> + return 0;
> +}
> +
> +static void *ca_monitor(void *arg) {
> + struct intca_s *intca=arg;
> +
> + while(!intca->stop_thread)
> + intca->stdcam->poll(intca->stdcam);
> +
> + return (void *) 0;
> +}
> +
> +static void ca_pmt_push_cam(struct intca_s *intca, struct psisec_s *psisec) {
> + struct section *section;
> + struct section_ext *section_ext;
> + struct mpeg_pmt_section *pmt;
> + int size;
> + uint8_t capmt[4096];
> +
> + section=section_codec(psisec->data, psisec->len);
> + if (!section)
> + return;
> +
> + section_ext=section_ext_decode(section, 0);
> + if (!section_ext)
> + return;
> +
> + pmt=mpeg_pmt_section_codec(section_ext);
> + if (!pmt)
> + return;
> +
> + if(!intca->ca_resource_connected)
> + return;
> +
> + logwrite(LOG_INFO, "Received new PMT, send it to CAM");
> +
> +
> + size=en50221_ca_format_pmt(pmt, capmt, sizeof(capmt),
> + intca->moveca, CA_LIST_MANAGEMENT_ADD,
> + CA_PMT_CMD_ID_OK_DESCRAMBLING);
> +
> + if (size<0) {
> + logwrite(LOG_ERROR, "en50221_ca_format_pmt returned size %d", size);
> + return;
> + }
> +
> + if(en50221_app_ca_pmt(intca->stdcam->ca_resource,
> + intca->stdcam->ca_session_number,
> + capmt, size)) {
> +
> + logwrite(LOG_ERROR, "Failed to send PMT");
> + return;
> + }
> +
> + return;
> +}
> +
> +/*
> + * This threads waits for the PAT/PMT forwarding to pass in a PMT section
> + * via the async queue. g_async_queue_pop will put the thread to sleep until
> + * there is one.
> + *
> + */
> +static void *ca_pmt_monitor(void *arg) {
> + struct intca_s *intca=arg;
> + struct psisec_s *section;
> +
> + g_async_queue_ref(intca->pmtqueue);
> +
> + while(42) {
> + section=g_async_queue_pop(intca->pmtqueue);
> + ca_pmt_push_cam(intca, section);
> + g_free(section);
> + }
> +}
> +
> +void ca_pmt_section_push(struct intca_s *intca, struct psisec_s *section) {
> + struct psisec_s *sectionclone;
> +
> + /* malloc + copy in the hot path? */
> + sectionclone=g_memdup(section, sizeof(struct psisec_s));
> +
> + /* Push it into the threads pmt queue */
> + g_async_queue_push(intca->pmtqueue, sectionclone);
> +
> + return;
> +}
> +
> +struct intca_s *new_ca(int adapter, int demuxer, int caslot, int moveca,
> + GList *streams) {
> + struct intca_s *intca;
> +
> + logwrite(LOG_INFO, "Initialize common interface...");
> +
> + intca=malloc(sizeof(struct intca_s));
> +
> + intca->pmtqueue=g_async_queue_new();
> +
> + intca->ca_resource_connected = 0;
> +
> + intca->stop_thread = 0;
> +
> + intca->adapter = adapter;
> + intca->demuxer = demuxer;
> + intca->caslot = caslot;
> + intca->moveca = moveca;
> +
> + intca->inputs = 0;
> +
> + /* create transportlayer */
> + intca->tl = en50221_tl_create(1, 16);
> + if(intca->tl == NULL) {
> + logwrite(LOG_ERROR, "Failed to create transport layer");
> + return NULL;
> + }
> +
> + /* create session layer */
> + intca->sl = en50221_sl_create(intca->tl, 16);
> + if(intca->sl == NULL) {
> + logwrite(LOG_ERROR, "Failed to create session layer");
> + en50221_tl_destroy(intca->tl);
> + return NULL;
> + }
> +
> + /* create stdcam interface */
> + intca->stdcam = en50221_stdcam_create(intca->adapter, intca->caslot,
> + intca->tl, intca->sl);
> +
> + if(intca->stdcam == NULL) {
> + en50221_sl_destroy(intca->sl);
> + en50221_tl_destroy(intca->tl);
> + logwrite(LOG_ERROR, "Failed to create stdcam");
> + return NULL;
> + }
> +
> + /* hook up the AI callbacks */
> + if(intca->stdcam->ai_resource) {
> + en50221_app_ai_register_callback(intca->stdcam->ai_resource,
> + ai_callback, intca);
> + }
> +
> + /* hook up the CA callbacks */
> + if(intca->stdcam->ca_resource) {
> + en50221_app_ca_register_info_callback(intca->stdcam->ca_resource,
> + ca_info_callback, intca);
> + }
> +
> + /* hook up the MMI callbacks */
> + if(intca->stdcam->mmi_resource) {
> + en50221_app_mmi_register_close_callback(intca->
> + stdcam->mmi_resource,
> + mmi_close_callback,
> + intca);
> +
> + en50221_app_mmi_register_display_control_callback(intca->stdcam->mmi_resource,
> + mmi_display_control_callback,
> + intca);
> +
> + en50221_app_mmi_register_enq_callback(intca->stdcam->mmi_resource,
> + mmi_enq_callback, intca);
> +
> + en50221_app_mmi_register_menu_callback(intca->stdcam->mmi_resource,
> + mmi_menu_callback, intca);
> +
> + en50221_app_mmi_register_list_callback(intca->stdcam->mmi_resource,
> + mmi_menu_callback, intca);
> + }
> +
> + pthread_create(&intca->cathread, NULL, ca_monitor, intca);
> + pthread_create(&intca->pmtthread, NULL, ca_pmt_monitor, intca);
> +
> + intca->state = ca_running;
> +
> + return intca;
> +}
> diff --git a/ca.h b/ca.h
> new file mode 100644
> index 0000000..ce35e5b
> --- /dev/null
> +++ b/ca.h
> @@ -0,0 +1,91 @@
> +/* ca interface header */
> +
> +#ifndef CA_H_
> +
> +#define CA_H_
> +
> +#include <stdint.h>
> +#include <glib.h>
> +#include <sys/poll.h>
> +
> +#include "psi.h"
> +
> +#define MAX_PROGRAMS 50
> +
> +enum ca_state {
> + ca_stopped = 0x00,
> + ca_running = 0x01,
> + ca_paused = 0x02
> +};
> +
> +struct program {
> + int pnr;
> + int pmt_version;
> +};
> +
> +struct intca_s {
> + GAsyncQueue *pmtqueue;
> +
> + struct en50221_stdcam *stdcam;
> + struct en50221_transport_layer *tl;
> + struct en50221_session_layer *sl;
> +
> + int adapter;
> + int demuxer;
> + int caslot;
> + int moveca;
> +
> + int pat_version;
> + int pmt_version;
> +
> + int inputs;
> +
> + int ca_resource_connected;
> +
> + GList *streams;
> +
> + enum ca_state state;
> +
> + int stop_thread;
> + pthread_t cathread;
> + pthread_t pmtthread;
> +};
> +
> +/**
> + * constructor for the CI module
> + * @param adapter adapter number
> + * @param demuxer demuxer number
> + * @param caslot caslot number
> + * @param moveca use ca movement
> + * @param streams list of streams to control
> + * @return newly created ca objected
> + */
> +struct intca_s *new_ca(int adapter, int demuxer, int caslot, int moveca,
> + GList * streams);
> +
> +
> +/**
> + * Sends a mmi answer to the mmi menu currently linked
> + * to ui.mmimenu
> + * @param value the answer value
> + */
> +void send_mmi_menu_answ(void *value);
> +
> +/**
> + * opens a mmi menu in the ui.mmimenu
> + * @param this_gen ca object to use
> + */
> +void open_mmi_menu(void *ca);
> +
> +
> +/**
> + * Send a mmi app answer to mmi session in ui.pin_query
> + * @param value the answer value
> + * @param length length of value
> + */
> +void send_mmi_answ(uint8_t * value, int length);
> +
> +void ca_pmt_section_push(struct intca_s *intca, struct psisec_s *section);
> +
> +
> +#endif
> diff --git a/getstream.c b/getstream.c
> index ce834f7..b7d600d 100644
> --- a/getstream.c
> +++ b/getstream.c
> @@ -1,4 +1,3 @@
> -
> #include <sys/poll.h>
> #include <sys/types.h>
> #include <sys/stat.h>
> @@ -13,6 +12,9 @@
> #include <pthread.h>
> #include <signal.h>
>
> +#include <sys/syscall.h>
> +#include <sched.h>
> +
> #include <stdint.h>
> #include <string.h>
> #include <stdio.h>
> @@ -152,6 +154,9 @@ int main(int argc, char **argv) {
> struct adapter_s *a=al->data;
> GList *sl=g_list_first(a->streams);
>
> + /* Start CI-Interface */
> + a->ca = new_ca(a->no, 0, 0, 1, a->streams);
> +
> /* Tune to the one and only transponder */
> fe_tune_init(a);
>
> diff --git a/getstream.h b/getstream.h
> index a9139c6..ceca8f0 100644
> --- a/getstream.h
> +++ b/getstream.h
> @@ -14,6 +14,7 @@
>
> #include "sap.h"
> #include "psi.h"
> +#include "ca.h"
>
> #if (DVB_API_VERSION==3) && (DVB_API_VERSION_MINOR>=3)
>
> @@ -239,6 +240,9 @@ struct adapter_s {
> int budgetmode;
> GList *streams;
>
> + /* CI */
> + struct intca_s *ca;
> +
> /* fe.c */
> struct {
> int fd;
> diff --git a/pmt.c b/pmt.c
> index fa0dabd..064b741 100644
> --- a/pmt.c
> +++ b/pmt.c
> @@ -5,6 +5,7 @@
>
> #include "getstream.h"
> #include "psi.h"
> +#include "ca.h"
>
> struct programcb_s {
> void (*callback)(void *data, void *arg);
> @@ -337,8 +338,6 @@ static void pmt_dvr_pmt_cb(void *data, void *arg) {
> logwrite(LOG_XTREME, "pmt: dvr section callback");
> dump_hex(LOG_XTREME, "pmt: PMT ", section->data, section->valid);
>
> - if (!psi_currentnext(section))
> - return;
>
> if (psi_tableid(section) != PMT_TABLE_ID) {
> logwrite(LOG_INFO, "pmt: received PMT with broken table id on pid %d", prog->pmtpid);
> @@ -351,9 +350,20 @@ static void pmt_dvr_pmt_cb(void *data, void *arg) {
> return;
> }
>
> + if (!psi_currentnext(section))
> + return;
> +
> + /*
> + * Did something change in the PMT tables? e.g. did we get
> + * an updated section (version number changed) or a section
> + * which we didnt have before
> + */
> if (!psi_update_table(&prog->psi, section))
> return;
>
> + if (prog->adapter->ca)
> + ca_pmt_section_push(prog->adapter->ca, section);
> +
> pmt=pmt_parse(prog);
>
> if (prog->pmtlast)
--
Florian Lohoff flo at rfc822.org +49-171-2280134
Those who would give up a little freedom to get a little
security shall soon have neither - Benjamin Franklin
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