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-rw-r--r--extras/cdrom_id/cdrom_id.c156
1 files changed, 91 insertions, 65 deletions
diff --git a/extras/cdrom_id/cdrom_id.c b/extras/cdrom_id/cdrom_id.c
index afb481d1a8..3f9ca4c228 100644
--- a/extras/cdrom_id/cdrom_id.c
+++ b/extras/cdrom_id/cdrom_id.c
@@ -154,19 +154,22 @@ struct scsi_cmd {
struct sg_io_hdr sg_io;
};
-static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, int arg)
+static void scsi_cmd_init(struct udev *udev, struct scsi_cmd *cmd, unsigned char *buf, size_t bufsize)
+{
+ memset(cmd, 0x00, sizeof(struct scsi_cmd));
+ memset(buf, 0x00, bufsize);
+ cmd->cgc.quiet = 1;
+ cmd->cgc.sense = &cmd->_sense.s;
+ memset(&cmd->sg_io, 0, sizeof(cmd->sg_io));
+ cmd->sg_io.interface_id = 'S';
+ cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
+ cmd->sg_io.cmdp = cmd->cgc.cmd;
+ cmd->sg_io.sbp = cmd->_sense.u;
+ cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
+}
+
+static void scsi_cmd_set(struct udev *udev, struct scsi_cmd *cmd, size_t i, unsigned char arg)
{
- if (i == 0) {
- memset(cmd, 0, sizeof(struct scsi_cmd));
- cmd->cgc.quiet = 1;
- cmd->cgc.sense = &cmd->_sense.s;
- memset(&cmd->sg_io, 0, sizeof(cmd->sg_io));
- cmd->sg_io.interface_id = 'S';
- cmd->sg_io.mx_sb_len = sizeof(cmd->_sense);
- cmd->sg_io.cmdp = cmd->cgc.cmd;
- cmd->sg_io.sbp = cmd->_sense.u;
- cmd->sg_io.flags = SG_FLAG_LUN_INHIBIT | SG_FLAG_DIRECT_IO;
- }
cmd->sg_io.cmd_len = i + 1;
cmd->cgc.cmd[i] = arg;
}
@@ -237,7 +240,7 @@ static int cd_inquiry(struct udev *udev, int fd) {
unsigned char inq[128];
int err;
- memset(inq, 0, sizeof(inq));
+ scsi_cmd_init(udev, &sc, inq, sizeof(inq));
scsi_cmd_set(udev, &sc, 0, 0x12);
scsi_cmd_set(udev, &sc, 4, 36);
scsi_cmd_set(udev, &sc, 5, 0);
@@ -256,109 +259,132 @@ static int cd_inquiry(struct udev *udev, int fd) {
return 0;
}
-static int cd_profiles(struct udev *udev, int fd)
+static int feature_profiles(struct udev *udev, const unsigned char *profiles, size_t size)
{
- struct scsi_cmd sc;
- unsigned char header[8];
- unsigned char profiles[512];
- unsigned int cur_profile;
- unsigned int len;
unsigned int i;
- int err;
-
- memset(header, 0, sizeof(header));
- scsi_cmd_set(udev, &sc, 0, 0x46);
- scsi_cmd_set(udev, &sc, 1, 0);
- scsi_cmd_set(udev, &sc, 8, sizeof(header));
- scsi_cmd_set(udev, &sc, 9, 0);
- err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
- if ((err < 0)) {
- info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
- return -1;
- }
- len = 4 + (header[0] << 24 | header[1] << 16 | header[2] << 8 | header[3]);
- info(udev, "GET CONFIGURATION: number of profiles %i\n", len);
- if (len > sizeof(profiles)) {
- info(udev, "invalid number of profiles\n");
- return -1;
- }
-
- memset(profiles, 0, sizeof(profiles));
- scsi_cmd_set(udev, &sc, 0, 0x46);
- scsi_cmd_set(udev, &sc, 1, 1);
- scsi_cmd_set(udev, &sc, 6, len >> 16);
- scsi_cmd_set(udev, &sc, 7, len >> 8);
- scsi_cmd_set(udev, &sc, 8, len);
- scsi_cmd_set(udev, &sc, 9, 0);
- err = scsi_cmd_run(udev, &sc, fd, profiles, len);
- if ((err < 0)) {
- info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
- return -1;
- }
-
- /* device profiles */
- for (i = 12; i < profiles[11]; i += 4) {
- unsigned int profile = (profiles[i] << 8 | profiles[i + 1]);
- if (profile == 0)
- continue;
- info(udev, "profile 0x%02x\n", profile);
+ for (i = 0; i+4 <= size; i += 4) {
+ int profile;
+ profile = profiles[i] << 8 | profiles[i+1];
switch (profile) {
case 0x03:
case 0x04:
case 0x05:
+ info(udev, "profile 0x%02x mo\n", profile);
cd_mo = 1;
- break;
+ break;
case 0x10:
+ info(udev, "profile 0x%02x dvd_rom\n", profile);
cd_dvd_rom = 1;
break;
case 0x12:
+ info(udev, "profile 0x%02x dvd_ram\n", profile);
cd_dvd_ram = 1;
break;
case 0x13:
case 0x14:
+ info(udev, "profile 0x%02x dvd_rw\n", profile);
cd_dvd_rw = 1;
break;
case 0x1B:
+ info(udev, "profile 0x%02x dvd_plus_r\n", profile);
cd_dvd_plus_r = 1;
break;
case 0x1A:
+ info(udev, "profile 0x%02x dvd_plus_rw\n", profile);
cd_dvd_plus_rw = 1;
break;
case 0x2A:
+ info(udev, "profile 0x%02x dvd_plus_rw_dl\n", profile);
cd_dvd_plus_rw_dl = 1;
break;
case 0x2B:
+ info(udev, "profile 0x%02x dvd_plus_r_dl\n", profile);
cd_dvd_plus_r_dl = 1;
break;
case 0x40:
cd_bd = 1;
+ info(udev, "profile 0x%02x bd\n", profile);
break;
case 0x41:
case 0x42:
cd_bd_r = 1;
+ info(udev, "profile 0x%02x bd_r\n", profile);
break;
case 0x43:
cd_bd_re = 1;
+ info(udev, "profile 0x%02x bd_re\n", profile);
break;
case 0x50:
cd_hddvd = 1;
+ info(udev, "profile 0x%02x hddvd\n", profile);
break;
case 0x51:
cd_hddvd_r = 1;
+ info(udev, "profile 0x%02x hddvd_r\n", profile);
break;
case 0x52:
cd_hddvd_rw = 1;
+ info(udev, "profile 0x%02x hddvd_rw\n", profile);
+ break;
+ default:
+ info(udev, "profile 0x%02x <ignored>\n", profile);
+ break;
+ }
+ }
+ return 0;
+}
+
+static int cd_profiles(struct udev *udev, int fd)
+{
+ struct scsi_cmd sc;
+ unsigned char features[65530];
+ unsigned int cur_profile = 0;
+ unsigned int len;
+ unsigned int i;
+ int err;
+
+ scsi_cmd_init(udev, &sc, features, sizeof(features));
+ scsi_cmd_set(udev, &sc, 0, 0x46);
+ scsi_cmd_set(udev, &sc, 7, (sizeof(features) >> 8) & 0xff);
+ scsi_cmd_set(udev, &sc, 8, sizeof(features) & 0xff);
+ scsi_cmd_set(udev, &sc, 9, 0);
+ err = scsi_cmd_run(udev, &sc, fd, features, sizeof(features));
+ if ((err < 0)) {
+ info_scsi_cmd_err(udev, "GET CONFIGURATION", err);
+ return -1;
+ }
+
+ len = features[0] << 24 | features[1] << 16 | features[2] << 8 | features[3];
+ info(udev, "GET CONFIGURATION: size of features buffer %i\n", len);
+
+ if (len > sizeof(features)) {
+ info(udev, "can not get features in a single query, truncating\n");
+ len = sizeof(features);
+ }
+
+ /* device features */
+ for (i = 8; i+4 < len; i += (4 + features[i+3])) {
+ unsigned int feature;
+
+ feature = features[i] << 8 | features[i+1];
+
+ switch (feature) {
+ case 0x00:
+ info(udev, "GET CONFIGURATION: feature 'profiles', with %i entries\n", features[i+3] / 4);
+ feature_profiles(udev, &features[i]+4, features[i+3]);
+
+ /* set current profile, if we got a profiles section */
+ cur_profile = features[6] << 8 | features[7];
+ info(udev, "current profile 0x%02x\n", cur_profile);
break;
default:
+ info(udev, "GET CONFIGURATION: feature %i <ignored>, with %i bytes\n", feature, features[i+3]);
break;
}
}
- /* current media profile */
- cur_profile = header[6] << 8 | header[7];
- info(udev, "current profile 0x%02x\n", cur_profile);
if (cur_profile == 0) {
info(udev, "no current profile, assuming no media\n");
return -1;
@@ -443,7 +469,7 @@ static int cd_media_info(struct udev *udev, int fd)
};
int err;
- memset(header, 0, sizeof(header));
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
scsi_cmd_set(udev, &sc, 0, 0x51);
scsi_cmd_set(udev, &sc, 8, sizeof(header));
scsi_cmd_set(udev, &sc, 9, 0);
@@ -476,7 +502,7 @@ static int cd_media_toc(struct udev *udev, int fd)
unsigned char *p;
int err;
- memset(header, 0, sizeof(header));
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
scsi_cmd_set(udev, &sc, 0, 0x43);
scsi_cmd_set(udev, &sc, 6, 1);
scsi_cmd_set(udev, &sc, 8, sizeof(header));
@@ -498,7 +524,7 @@ static int cd_media_toc(struct udev *udev, int fd)
if (len < 8)
return 0;
- memset(toc, 0, sizeof(toc));
+ scsi_cmd_init(udev, &sc, toc, sizeof(toc));
scsi_cmd_set(udev, &sc, 0, 0x43);
scsi_cmd_set(udev, &sc, 6, header[2]); /* First Track/Session Number */
scsi_cmd_set(udev, &sc, 7, len >> 8);
@@ -526,7 +552,7 @@ static int cd_media_toc(struct udev *udev, int fd)
cd_media_track_count_audio++;
}
- memset(header, 0, sizeof (header));
+ scsi_cmd_init(udev, &sc, header, sizeof(header));
scsi_cmd_set(udev, &sc, 0, 0x43);
scsi_cmd_set(udev, &sc, 2, 1); /* Session Info */
scsi_cmd_set(udev, &sc, 8, 12);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-23 03:43:50 +0000