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-rw-r--r--libmpdemux/dvdauth.c160
1 files changed, 96 insertions, 64 deletions
diff --git a/libmpdemux/dvdauth.c b/libmpdemux/dvdauth.c
index 248153bcef..113d2dce60 100644
--- a/libmpdemux/dvdauth.c
+++ b/libmpdemux/dvdauth.c
@@ -1,10 +1,24 @@
-/* (C)2001 by LGB (Gabor Lenart), based on example programs in libcss
- lgb@lgb.hu */
+/* (C)2001,2002 by LGB (Gabor Lenart), based on example programs in libcss
+ lgb@lgb.hu
+
+ This source is part of MPlayer project. This source is copyrighted by
+ the author according to rules declared in GNU/GPL license.
+
+ 2001 Inital version (LGB)
+ 2001 fibmap_mplayer to avoid uid=0 mplayer need (LGB)
+ 2001 Support for libcss with the new API (by ???)
+ 2002/Jan/04 Use dlopen to access libcss.so to avoid conflict with
+ libdvdread [now with only libcss with old API (LGB)
+
+ TODO:
+ support for libcss libraries with new API */
/* don't do anything with this source if css support was not requested */
#include "config.h"
#ifdef HAVE_LIBCSS
+#warning FIXME: Dynamic loading of libcss.so with newer (ver>0.1) libcss API is not supported in this version!
+
#include <stdio.h>
#include <stdlib.h>
//#include <string.h> // FIXME: conflicts with fs.h
@@ -15,27 +29,23 @@
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/wait.h>
-#include <css.h>
-#if CSS_MAJOR_VERSION > 0 || (CSS_MAJOR_VERSION == 0 && CSS_MINOR_VERSION > 1)
-# include <dvd.h>
-# undef OLD_CSS_API
-#else
-# if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+// #include <css.h>
+
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
# include <sys/dvdio.h>
-# elif defined(__linux__)
+#elif defined(__linux__)
# include <linux/cdrom.h>
-# elif defined(__sun)
+#elif defined(__sun)
# include <sun/dvdio.h>
-# else
+#else
# error "Need the DVD ioctls"
-# endif
-# define OLD_CSS_API 1
#endif
+#include <dlfcn.h>
#include "dvdauth.h"
-#if OLD_CSS_API
+// #if OLD_CSS_API
/*
* provide some backward compatibiliy macros to compile this
* code using the old libcss-0.1
@@ -46,35 +56,33 @@
#define DVDAuth(hdl, s) ioctl(hdl, DVD_AUTH, s)
#define DVDOpenDevice(path) open(path, O_RDONLY)
#define DVDCloseDevice(hdl) close(hdl)
-#define CSSDVDisEncrypted(hdl) CSSisEncrypted(hdl)
-#define CSSDVDAuthDisc CSSAuthDisc
-/* Arghhh! Please think before you commit! You forget to check the return
- value of path_to_lba (-1 for error) in this way ... - LGB */
-//#define CSSDVDAuthTitlePath(hdl,key_title,path) \
-// CSSAuthTitle(hdl,key_title,path_to_lba(path))
-
-#else /*OLD_CSS_API*/
-
-#define DVDHandle struct dvd_device *
-#define DVDOpenFailed NULL
-
-#endif /*OLD_CSS_API*/
+// #define CSSDVDisEncrypted(hdl) CSSisEncrypted(hdl)
+// #define CSSDVDAuthDisc CSSAuthDisc
char *dvd_auth_device=NULL;
char *dvd_device=NULL;
char *dvd_raw_device=NULL;
+char *css_so=NULL;
unsigned char key_disc[2048];
unsigned char key_title[5];
unsigned char *dvdimportkey=NULL;
int descrambling=0;
+static void *dlid;
+static int (*dl_CSSisEncrypted)(int);
+static int (*dl_CSSAuthDisc)(int,char *);
+static int (*dl_CSSAuthTitle)(int, char *,int);
+static int (*dl_CSSGetASF)(int);
+static int (*dl_CSSDecryptTitleKey)(char *, char *);
+static void (*dl_CSSDescramble)(u_char *, u_char *);
+
+dvd_css_descramble ( u_char *sec , u_char *key )
+{
+ (*dl_CSSDescramble)(sec,key);
+}
+
-#if OLD_CSS_API
-/*
- * With the old libcss-0.1 api, we have to find out the LBA for
- * a title for title authentication.
- */
#ifdef __linux__
#include <linux/fs.h>
@@ -82,6 +90,7 @@ int descrambling=0;
#define FIBMAP 1
#endif
+
static int path_to_lba (char *path)
{
int lba = 0;
@@ -94,51 +103,56 @@ static int path_to_lba (char *path)
int ret;
memset(cmd,0,sizeof(cmd));
fgets(cmd,99,fp);
+// printf("DVD: cmd: %s\n",cmd);
if ((ret=pclose(fp)))
- fprintf(stderr,"fibmap_mplayer: %s\n",*cmd?cmd:"no error info");
- if(WIFEXITED(ret) && !WEXITSTATUS(ret))
- lba=atoi(cmd);
- else
- fp=NULL;
+ fprintf(stderr,"DVD: fibmap_mplayer: %s\n",*cmd?cmd:"no error info");
+ if (cmd[0]<'0'||cmd[0]>'9') fp=NULL; else {
+ if(WIFEXITED(ret) && !WEXITSTATUS(ret)) {
+ lba=atoi(cmd);
+ printf("DVD: fibmap_mplayer is being used\n");
+ } else
+ fp=NULL;
+ }
}
if (!fp) {
int fd;
- printf("fibmap_mplayer could not run, trying with ioctl() ...\n");
+ printf("DVD: fibmap_mplayer could not run, trying with ioctl() ...\n");
if ((fd = open(path, O_RDONLY)) == -1) {
- fprintf(stderr, "Cannot open file %s: %s",
+ fprintf(stderr, "DVD: Cannot open file %s: %s",
path ? path : "(NULL)", strerror(errno));
return -1;
}
if (ioctl(fd, FIBMAP, &lba) != 0) {
- perror ("ioctl FIBMAP");
- fprintf(stderr,"Hint: run mplayer as root (or better to install fibmap_mplayer as suid root)!\n");
+ perror("DVD: ioctl FIBMAP");
+ fprintf(stderr," Hint: run mplayer as root (or better to install fibmap_mplayer as suid root)!\n");
close(fd);
return -1;
}
close(fd);
}
- printf("LBA: %d\n",lba);
+ printf("DVD: LBA: %d\n",lba);
return lba;
}
-
-int CSSDVDAuthTitlePath(DVDHandle hdl,unsigned char *key_title,char *path)
-{
- int lba=path_to_lba(path);
- if (lba==-1) return -1;
- return CSSAuthTitle(hdl,key_title,lba);
-}
-
-
#else /*linux*/
+
static int path_to_lba (char *path)
{
#warning translating pathname to iso9660 LBA is not supported on this platform
- fprintf(stderr, "Translating pathname to iso9660 LBA is not supported on this platform\n");
+ fprintf(stderr, "DVD: Translating pathname to iso9660 LBA is not supported on this platform\n");
return -1;
}
+
#endif /*linux*/
-#endif /*OLD_CSS_API*/
+
+
+static int CSSDVDAuthTitlePath(DVDHandle hdl,unsigned char *key_title,char *path)
+{
+ int lba=path_to_lba(path);
+ if (lba==-1) return -1;
+ return (*dl_CSSAuthTitle)(hdl,key_title,lba);
+}
+
static void reset_agids ( DVDHandle dvd )
@@ -173,7 +187,7 @@ int dvd_import_key ( unsigned char *hexkey )
hexkey++;
}
if (*hexkey) return 1;
- printf("DVD key (requested): %02X%02X%02X%02X%02X\n",key_title[0],key_title[1],key_title[2],key_title[3],key_title[4]);
+ printf("DVD: DVD key (requested): %02X%02X%02X%02X%02X\n",key_title[0],key_title[1],key_title[2],key_title[3],key_title[4]);
descrambling=1;
return 0;
}
@@ -184,28 +198,46 @@ int dvd_auth ( char *dev , char *filename )
{
DVDHandle dvd; /* DVD device handle */
+ if (!css_so) css_so=strdup("/usr/local/lib/libcss.so");
+ printf("DVD: opening libcss.so as %s ...\n",css_so);
+ dlid=dlopen(css_so,RTLD_NOW);
+ if (!dlid) {
+ printf("DVD: dlopen: %s\n",dlerror());
+ return 1;
+ } printf("DVD: dlopen OK!\n");
+
+#define CSS_DLSYM(v,s) if (!(v=dlsym(dlid,s))) {\
+fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
+return 1; }
+
+ CSS_DLSYM(dl_CSSisEncrypted,"CSSisEncrypted");
+ CSS_DLSYM(dl_CSSAuthDisc,"CSSAuthDisc");
+ CSS_DLSYM(dl_CSSAuthTitle,"CSSAuthTitle");
+ CSS_DLSYM(dl_CSSGetASF,"CSSGetASF");
+ CSS_DLSYM(dl_CSSDecryptTitleKey,"CSSDecryptTitleKey");
+ CSS_DLSYM(dl_CSSDescramble,"CSSDescramble");
+
+#undef CSS_DLSYM
+
if ((dvd=DVDOpenDevice(dev)) == DVDOpenFailed) {
fprintf(stderr,"DVD: cannot open DVD device \"%s\": %s.\n",
dev, strerror(errno));
return 1;
}
-
- if (!CSSDVDisEncrypted(dvd)) {
- printf("DVD is unencrypted! Skipping authentication!\n(note: you should not use -dvd switch for unencrypted discs!)\n");
+
+ if (!(*dl_CSSisEncrypted)(dvd)) {
+ printf("DVD: DVD is unencrypted! Skipping authentication!\n(note: you should not use -dvd switch for unencrypted discs!)\n");
DVDCloseDevice(dvd);
return 0;
- } else printf("DVD is encrypted, issuing authentication ...\n");
-
+ } else printf("DVD: DVD is encrypted, issuing authentication ...\n");
/* reset AGIDs */
reset_agids(dvd);
-
/* authenticate disc */
- if (CSSDVDAuthDisc(dvd,key_disc)) {
+ if ((*dl_CSSAuthDisc)(dvd,key_disc)) {
fprintf(stderr,"DVD: CSSDVDAuthDisc() failed.\n");
DVDCloseDevice(dvd);
return 1;
}
-
if (CSSDVDAuthTitlePath(dvd,key_title,filename)) {
fprintf(stderr,"DVD: CSSDVDAuthTitle() failed.\n");
DVDCloseDevice(dvd);
@@ -213,14 +245,14 @@ int dvd_auth ( char *dev , char *filename )
}
/* decrypting title */
- if (CSSDecryptTitleKey (key_title, key_disc) < 0) {
+ if ((*dl_CSSDecryptTitleKey)(key_title, key_disc) < 0) {
fprintf(stderr,"DVD: CSSDecryptTitleKey() failed.\n");
DVDCloseDevice(dvd);
return 1;
}
DVDCloseDevice(dvd);
- printf("DVD title key is: %02X%02X%02X%02X%02X\n",key_title[0],key_title[1],key_title[2],key_title[3],key_title[4]);
+ printf("DVD: DVD title key is: %02X%02X%02X%02X%02X\n",key_title[0],key_title[1],key_title[2],key_title[3],key_title[4]);
descrambling=1;
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 01:58:47 +0000