Date: Tue, 4 Jan 2000 19:41:21 -0600 (CST) From: Anthony Kimball <alk@pobox.com> To: efknight@bellsouth.net Cc: multimedia@freebsd.org Subject: DeCSS Message-ID: <14450.41202.750383.328359@avalon.east> References: <38729EF1.B336C84A@bellsouth.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Quoth Ted Knight on Tue, 4 January:
:
: Any comments, suggestions or success stories?
:
Success:
--- css-auth/dvdinfo.c Thu Nov 4 20:25:13 1999
+++ css-auth.alk/dvdinfo.c Fri Dec 24 02:38:12 1999
@@ -5,13 +5,8 @@
#include <stdio.h>
#include <fcntl.h>
-#if defined(__OpenBSD__)
-# include <sys/dvdio.h>
-#elif defined(__linux__)
-# include <linux/cdrom.h>
-#else
-# error "Need the DVD ioctls"
-#endif
+#include <sys/cdio.h>
+#include <sys/dvdio.h>
#include <sys/ioctl.h>
#include <errno.h>
@@ -19,53 +14,55 @@
int GetASF(int fd)
{
- dvd_authinfo ai;
+ struct dvd_authinfo ai;
- ai.type = DVD_LU_SEND_ASF;
- ai.lsasf.agid = 0;
- ai.lsasf.asf = 0;
+ ai.format = DVD_REPORT_ASF;
+ ai.agid = 0;
+ ai.asf = 0;
- if (ioctl(fd, DVD_AUTH, &ai)) {
+ if (ioctl(fd, DVDIOCREPORTKEY, &ai)) {
printf("GetASF failed\n");
return 0;
}
- printf("%sAuthenticated\n", (ai.lsasf.asf) ? "" : "not ");
+ printf("%sAuthenticated\n", (ai.asf) ? "" : "not ");
return 1;
}
int GetPhysical(int fd)
{
- dvd_struct d;
+ struct dvd_struct d;
int layer = 0, layers = 4;
- d.physical.type = DVD_STRUCT_PHYSICAL;
+ d.format = DVD_STRUCT_PHYSICAL;
while (layer < layers) {
- d.physical.layer_num = layer;
+ struct dvd_layer *lp = (struct dvd_layer *)&d.data[0];
+
+ d.layer_num = layer;
- if (ioctl(fd, DVD_READ_STRUCT, &d)<0)
+ if (ioctl(fd, DVDIOCREADSTRUCTURE, &d)<0)
{
printf("Could not read Physical layer %d\n", layer);
return 0;
}
- layers = d.physical.layer[layer].nlayers + 1;
+ layers = lp->nlayers + 1;
printf("Layer %d[%d]\n", layer, layers);
- printf(" Book Version: %d\n", d.physical.layer[layer].book_version);
- printf(" Book Type: %d\n", d.physical.layer[layer].book_type);
- printf(" Min Rate: %d\n", d.physical.layer[layer].min_rate);
- printf(" Disk Size: %d\n", d.physical.layer[layer].disc_size);
- printf(" Layer Type: %d\n", d.physical.layer[layer].layer_type);
- printf(" Track Path: %d\n", d.physical.layer[layer].track_path);
- printf(" Num Layers: %d\n", d.physical.layer[layer].nlayers);
- printf(" Track Density: %d\n", d.physical.layer[layer].track_density);
- printf(" Linear Density: %d\n", d.physical.layer[layer].linear_density);
- printf(" BCA: %d\n", d.physical.layer[layer].bca);
- printf(" Start Sector %#x\n", d.physical.layer[layer].start_sector);
- printf(" End Sector %#x\n", d.physical.layer[layer].end_sector);
- printf(" End Sector L0 %#x\n", d.physical.layer[layer].end_sector_l0);
+ printf(" Book Version: %d\n", lp->book_version);
+ printf(" Book Type: %d\n", lp->book_type);
+ printf(" Max Rate: %d\n", lp->max_rate);
+ printf(" Disk Size: %d\n", lp->disc_size);
+ printf(" Layer Type: %d\n", lp->layer_type);
+ printf(" Track Path: %d\n", lp->track_path);
+ printf(" Num Layers: %d\n", lp->nlayers);
+ printf(" Track Density: %d\n", lp->track_density);
+ printf(" Linear Density: %d\n", lp->linear_density);
+ printf(" BCA: %d\n", lp->bca);
+ printf(" Start Sector %#x\n", lp->start_sector);
+ printf(" End Sector %#x\n", lp->end_sector);
+ printf(" End Sector L0 %#x\n", lp->end_sector_l0);
++layer;
}
@@ -75,18 +72,18 @@
int GetCopyright(int fd)
{
- dvd_struct d;
+ struct dvd_struct d;
- d.copyright.type = DVD_STRUCT_COPYRIGHT;
- d.copyright.layer_num = 0;
+ d.format = DVD_STRUCT_COPYRIGHT;
+ d.layer_num = 0;
- if (ioctl(fd, DVD_READ_STRUCT, &d)<0)
+ if (ioctl(fd, DVDIOCREADSTRUCTURE, &d)<0)
{
printf("Could not read Copyright Struct\n");
return 0;
}
- printf("Copyright: CPST=%d, RMI=%#02x\n", d.copyright.cpst, d.copyright.rmi);
+ printf("Copyright: CPST=%d, RMI=%#02x\n", d.cpst, d.rmi);
return 1;
}
--- css-auth/reset.c Thu Nov 4 20:25:13 1999
+++ css-auth.alk/reset.c Fri Dec 24 02:41:54 1999
@@ -4,13 +4,8 @@
#include<stdio.h>
#include<fcntl.h>
-#if defined(__OpenBSD__)
-# include <sys/dvdio.h>
-#elif defined(__linux__)
-# include <linux/cdrom.h>
-#else
-# error "Need the DVD ioctls"
-#endif
+#include<sys/cdio.h>
+#include<sys/dvdio.h>
#include<sys/ioctl.h>
#include<errno.h>
@@ -20,7 +15,7 @@
int main(int ac, char **av)
{
- dvd_authinfo ai;
+ struct dvd_authinfo ai;
char *device = DVD;
int i;
@@ -30,15 +25,15 @@
fd = open(device, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
- printf("unable to open dvd drive (%s).\n", device);
- return 1;
+ perror("open");
+ errx(1,"unable to open dvd drive (%s).\n", device);
}
for (i = 0; i < 4; i++) {
memset(&ai, 0, sizeof(ai));
- ai.type = DVD_INVALIDATE_AGID;
- ai.lsa.agid = i;
- ioctl(fd, DVD_AUTH, &ai);
+ ai.format = DVD_INVALIDATE_AGID;
+ ai.agid = i;
+ ioctl(fd, DVDIOCREPORTKEY, &ai);
}
return 0;
--- css-auth/tstdvd.c Tue Nov 9 04:46:23 1999
+++ css-auth.alk/tstdvd.c Fri Dec 24 02:35:38 1999
@@ -27,13 +27,8 @@
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
-#if defined(__OpenBSD__)
-# include <sys/dvdio.h>
-#elif defined(__linux__)
-# include <linux/cdrom.h>
-#else
-# error "Need the DVD ioctls"
-#endif
+#include <sys/cdio.h>
+#include <sys/dvdio.h>
#include "css-auth.h"
byte Challenge[10];
@@ -94,23 +89,23 @@
int GetDiscKey(int fd, int agid, char *key)
{
- dvd_struct s;
+ struct dvd_struct s;
int index, fdd;
- s.type = DVD_STRUCT_DISCKEY;
- s.disckey.agid = agid;
- memset(s.disckey.value, 0, 2048);
- if (ioctl(fd, DVD_READ_STRUCT, &s)<0)
+ s.format = DVD_STRUCT_DISCKEY;
+ s.agid = agid;
+ memset(s.data, 0, 2048);
+ if (ioctl(fd, DVDIOCREADSTRUCTURE, &s)<0)
{
printf("Could not read Disc Key\n");
return 0;
}
printf ("Received Disc Key:\t");
- for (index=0; index<sizeof s.disckey.value; index++)
- s.disckey.value[index] ^= key[4 - (index%5)];
+ for (index=0; index<2048; index++)
+ s.data[index] ^= key[4 - (index%5)];
for (index=0; index<10; index++) {
- printf("%02X ", s.disckey.value[index]);
+ printf("%02X ", s.data[index]);
}
printf ("\n");
@@ -118,7 +113,7 @@
if (fdd < 0)
printf("Can't create \"disk-key\"\n");
else {
- if (write(fdd, s.disckey.value, 2048) != 2048)
+ if (write(fdd, &s.data[0], 2048) != 2048)
printf("Can't write \"disk-key\"\n");
close(fdd);
}
@@ -126,35 +121,35 @@
return 1;
}
-int GetTitleKey(int fd, int agid, int lba, char *key)
+int GetTitleKey(int fd, int agid, int lba_fd, char *key)
{
- dvd_authinfo ai;
+ struct dvd_authinfo ai;
int i, fdd;
- ai.type = DVD_LU_SEND_TITLE_KEY;
+ ai.format = DVD_REPORT_TITLE_KEY;
- ai.lstk.agid = agid;
- ai.lstk.lba = lba;
+ ai.agid = agid;
+ ai.lba = lba_fd;
- if (ioctl(fd, DVD_AUTH, &ai)) {
+ if (ioctl(fd, DVDIOCREPORTKEY, &ai)) {
printf("GetTitleKey failed\n");
return 0;
}
printf ("Received Title Key:\t");
for (i = 0; i < 5; ++i) {
- ai.lstk.title_key[i] ^= key[4 - (i%5)];
- printf("%02X ", ai.lstk.title_key[i]);
+ ai.keychal[i] ^= key[4 - (i%5)];
+ printf("%02X ", ai.keychal[i]);
}
putchar('\n');
- printf(" CPM=%d, CP_SEC=%d, CGMS=%d\n", ai.lstk.cpm, ai.lstk.cp_sec, ai.lstk.cgms);
+ printf(" CPM=%d, CP_SEC=%d, CGMS=%d\n", ai.cpm, ai.cp_sec, ai.cgms);
fdd = open("title-key", O_WRONLY|O_TRUNC|O_CREAT, 0644);
if (fdd < 0)
printf("Can't create \"title-key\"\n");
else {
- if (write(fdd, ai.lstk.title_key, 5) != 5)
+ if (write(fdd, &ai.keychal[0], 5) != 5)
printf("Can't write \"title-key\"\n");
close(fdd);
}
@@ -164,80 +159,26 @@
int GetASF(int fd)
{
- dvd_authinfo ai;
+ struct dvd_authinfo ai;
- ai.type = DVD_LU_SEND_ASF;
- ai.lsasf.agid = 0;
- ai.lsasf.asf = 0;
+ ai.format = DVD_REPORT_ASF;
+ ai.agid = 0;
+ ai.asf = 0;
- if (ioctl(fd, DVD_AUTH, &ai)) {
+ if (ioctl(fd, DVDIOCREPORTKEY, &ai)) {
printf("GetASF failed\n");
return 0;
}
- printf("%sAuthenticated\n", (ai.lsasf.asf) ? "" : "not ");
+ printf("%sAuthenticated\n", (ai.asf) ? "" : "not ");
- return 1;
+ return ai.asf;
}
-/* Simulation of a non-CSS compliant host (i.e. the authentication fails,
- * but idea is here for a real CSS compliant authentication scheme). */
-int
-hostauth (dvd_authinfo *ai)
+int authenticate(int fd, int title, int lba_fd)
{
- int i;
-
- switch (ai->type) {
- /* Host data receive (host changes state) */
- case DVD_LU_SEND_AGID:
- printf("AGID %d\n", ai->lsa.agid);
- ai->type = DVD_HOST_SEND_CHALLENGE;
- break;
-
- case DVD_LU_SEND_KEY1:
- printf("LU sent key1: "); print_key(ai->lsk.key); printf("\n");
- if (!authenticate_drive(ai->lsk.key)) {
- ai->type = DVD_AUTH_FAILURE;
- return -EINVAL;
- }
- ai->type = DVD_LU_SEND_CHALLENGE;
- break;
-
- case DVD_LU_SEND_CHALLENGE:
- for (i = 0; i < 10; ++i)
- Challenge[i] = ai->hsc.chal[9-i];
- printf("LU sent challenge: "); print_challenge(Challenge); printf("\n");
- CryptKey2(varient, Challenge, &Key2);
- ai->type = DVD_HOST_SEND_KEY2;
- break;
-
- /* Host data send */
- case DVD_HOST_SEND_CHALLENGE:
- for (i = 0; i < 10; ++i)
- ai->hsc.chal[9-i] = Challenge[i];
- printf("Host sending challenge: "); print_challenge(Challenge); printf("\n");
- /* Returning data, let LU change state */
- break;
-
- case DVD_HOST_SEND_KEY2:
- for (i = 0; i < 5; ++i)
- ai->hsk.key[4-i] = Key2.b[i];
- printf("Host sending key 2: "); print_key(Key2.b); printf("\n");
- /* Returning data, let LU change state */
- break;
-
- default:
- printf("Got invalid state %d\n", ai->type);
- return -EINVAL;
- }
-
- return 0;
-}
-
-int authenticate(int fd, int title, int lba)
-{
- dvd_authinfo ai;
- dvd_struct dvds;
+ struct dvd_authinfo ai;
+ struct dvd_struct dvds;
int i, rv, tries, agid;
memset(&ai, 0, sizeof (ai));
@@ -248,14 +189,14 @@
/* Init sequence, request AGID */
for (tries = 1, rv = -1; rv == -1 && tries < 4; ++tries) {
printf("Request AGID [%d]...\t", tries);
- ai.type = DVD_LU_SEND_AGID;
- ai.lsa.agid = 0;
- rv = ioctl(fd, DVD_AUTH, &ai);
+ ai.format = DVD_REPORT_AGID;
+ ai.agid = 0;
+ rv = ioctl(fd, DVDIOCREPORTKEY, &ai);
if (rv == -1) {
perror("N/A, invalidating");
- ai.type = DVD_INVALIDATE_AGID;
- ai.lsa.agid = 0;
- ioctl(fd, DVD_AUTH, &ai);
+ ai.format = DVD_INVALIDATE_AGID;
+ ai.agid = 0;
+ ioctl(fd, DVDIOCREPORTKEY, &ai);
}
}
if (tries == 4) {
@@ -266,57 +207,54 @@
for (i = 0; i < 10; ++i)
Challenge[i] = i;
- /* Send AGID to host */
- if (hostauth(&ai) < 0) {
- printf("Send AGID to host failed\n");
- return -1;
- }
+ printf("AGID %d\n", ai.agid);
+ agid = ai.agid;
/* Get challenge from host */
- if (hostauth(&ai) < 0) {
- printf("Get challenge from host failed\n");
- return -1;
- }
- agid = ai.lsa.agid;
+ ai.format = DVD_SEND_CHALLENGE;
+ for (i = 0; i < 10; ++i)
+ ai.keychal[9-i] = Challenge[i];
+ printf("Host sending challenge: "); print_challenge(Challenge); printf("\n");
/* Send challenge to LU */
- if (ioctl(fd, DVD_AUTH, &ai) < 0) {
+ if (ioctl(fd, DVDIOCSENDKEY, &ai) < 0) {
printf("Send challenge to LU failed\n");
return -1;
}
/* Get key1 from LU */
- if (ioctl(fd, DVD_AUTH, &ai) < 0) {
+ ai.format = DVD_REPORT_KEY1;
+ if (ioctl(fd, DVDIOCREPORTKEY, &ai) < 0) {
printf("Get key1 from LU failed\n");
return -1;
}
/* Send key1 to host */
- if (hostauth(&ai) < 0) {
+ printf("LU sent key1: "); print_key(ai.keychal); printf("\n");
+ if (!authenticate_drive(ai.keychal)) {
printf("Send key1 to host failed\n");
return -1;
}
/* Get challenge from LU */
- if (ioctl(fd, DVD_AUTH, &ai) < 0) {
+ ai.format = DVD_REPORT_CHALLENGE;
+ if (ioctl(fd, DVDIOCREPORTKEY, &ai) < 0) {
printf("Get challenge from LU failed\n");
return -1;
}
/* Send challenge to host */
- if (hostauth(&ai) < 0) {
- printf("Send challenge to host failed\n");
- return -1;
- }
+ for (i = 0; i < 10; ++i)
+ Challenge[i] = ai.keychal[9-i];
+ printf("LU sent challenge: "); print_challenge(Challenge); printf("\n");
+ CryptKey2(varient, Challenge, &Key2);
/* Get key2 from host */
- if (hostauth(&ai) < 0) {
- printf("Get key2 from host failed\n");
- return -1;
- }
+ ai.format = DVD_SEND_KEY2;
+ for (i = 0; i < 5; ++i)
+ ai.keychal[4-i] = Key2.b[i];
+ printf("Host sending key 2: "); print_key(Key2.b); printf("\n");
/* Send key2 to LU */
- if (ioctl(fd, DVD_AUTH, &ai) < 0) {
+ if (ioctl(fd, DVDIOCSENDKEY, &ai) < 0) {
printf("Send key2 to LU failed (expected)\n");
return -1;
}
- if (ai.type == DVD_AUTH_ESTABLISHED)
- printf("DVD is authenticated\n");
- else if (ai.type == DVD_AUTH_FAILURE)
- printf("DVD authentication failed\n");
+ printf("DVD will most likely be authenticated soon...\n");
+ GetASF(fd);
memcpy(Challenge, Key1.b, 5);
memcpy(Challenge+5, Key2.b, 5);
@@ -331,7 +269,7 @@
GetASF(fd);
if (title)
- GetTitleKey(fd, agid, lba, KeyCheck.b);
+ GetTitleKey(fd, agid, lba_fd, KeyCheck.b);
else
GetDiscKey(fd, agid, KeyCheck.b);
@@ -366,7 +304,7 @@
int main(int ac, char **av)
{
char *device;
- int fd, title = 0, lba = 0;
+ int fd, title = 0, lba_fd = 0;
if (ac < 2) {
fprintf(stderr, "usage: tstdvd <device> [title_path]\n");
@@ -379,10 +317,13 @@
exit(1);
}
if (ac == 3) {
- lba = path_to_lba(av[2]);
+ if ((lba_fd = open(av[2], O_RDONLY)) == -1) {
+ perror(av[2]);
+ exit(1);
+ }
title = 1;
}
- authenticate(fd, title, lba);
+ authenticate(fd, title, lba_fd);
close(fd);
return 0;
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-multimedia" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14450.41202.750383.328359>