From: Hannes Reinecke <hare@suse.de>
Date: Fri, 8 Jul 2005 01:29:19 +0000 (+0200)
Subject: fix usb_id and let scsi_id ignore "illegal request"
X-Git-Tag: 064~15^2~11
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=b4a2906bf1921cd6cbc25621a6db0bae906616c8;hp=face198a5f21027fefe796dc01e19e349a2d36ce

fix usb_id and let scsi_id ignore "illegal request"
---

diff --git a/extras/scsi_id/scsi_id.c b/extras/scsi_id/scsi_id.c
index 4003ee6af..cbefb445d 100644
--- a/extras/scsi_id/scsi_id.c
+++ b/extras/scsi_id/scsi_id.c
@@ -52,7 +52,7 @@
  * options are not supported, but other code is still left in place for
  * now.
  */
-static const char short_options[] = "bd:f:gip:s:uvVx";
+static const char short_options[] = "abd:f:gip:s:uvVx";
 /*
  * Just duplicate per dev options.
  */
@@ -61,6 +61,7 @@ static const char dev_short_options[] = "bgp:";
 char sysfs_mnt_path[SYSFS_PATH_MAX];
 
 static int all_good;
+static int always_info;
 static char *default_callout;
 static int dev_specified;
 static int sys_specified;
@@ -485,6 +486,9 @@ static int set_options(int argc, char **argv, const char *short_opts,
 			dprintf("option '%c'\n", option);
 
 		switch (option) {
+		case 'a':
+			always_info = 1;
+			break;
 		case 'b':
 			all_good = 0;
 			break;
@@ -810,7 +814,7 @@ static int scsi_id(const char *target_path, char *maj_min_dev)
 		retval = 1;
 	} else if (scsi_get_serial(scsi_dev, maj_min_dev, page_code,
 				   serial, MAX_SERIAL_LEN)) {
-		retval = 1;
+		retval = always_info?0:1;
 	} else {
 		retval = 0;
 	}
diff --git a/extras/scsi_id/scsi_serial.c b/extras/scsi_id/scsi_serial.c
index 20a792855..7bfa9d181 100644
--- a/extras/scsi_id/scsi_serial.c
+++ b/extras/scsi_id/scsi_serial.c
@@ -89,6 +89,7 @@ static const char hex_str[]="0123456789abcdef";
 #define SG_ERR_CAT_RESET	2      /* interpreted from sense buffer */
 #define SG_ERR_CAT_TIMEOUT	3
 #define SG_ERR_CAT_RECOVERED	4  /* Successful command after recovered err */
+#define SG_ERR_CAT_NOTSUPPORTED 5 /* Illegal / unsupported command */
 #define SG_ERR_CAT_SENSE	98     /* Something else in the sense buffer */
 #define SG_ERR_CAT_OTHER	99     /* Some other error/warning */
 
@@ -130,6 +131,8 @@ static int sg_err_category_new(int scsi_status, int msg_status, int
 					return SG_ERR_CAT_MEDIA_CHANGED;
 				if (0x29 == asc)
 					return SG_ERR_CAT_RESET;
+			} else if (sense_key == ILLEGAL_REQUEST) {
+				return SG_ERR_CAT_NOTSUPPORTED;
 			}
 		}
 		return SG_ERR_CAT_SENSE;
@@ -331,6 +334,9 @@ resend:
 	retval = sg_err_category3(&io_hdr);
 
 	switch (retval) {
+		case SG_ERR_CAT_NOTSUPPORTED:
+			buf[1] = 0;
+			/* Fallthrough */
 		case SG_ERR_CAT_CLEAN:
 		case SG_ERR_CAT_RECOVERED:
 			retval = 0;
diff --git a/extras/usb_id/usb_id.c b/extras/usb_id/usb_id.c
index bca80f8de..f4011ee89 100644
--- a/extras/usb_id/usb_id.c
+++ b/extras/usb_id/usb_id.c
@@ -72,7 +72,9 @@ static char revision_str[16];
 static char type_str[16];
 
 static int use_usb_info;
+static int use_num_info;
 static int export;
+static int debug;
 
 static void set_str(char *to, const unsigned char *from, int count)
 {
@@ -259,7 +261,7 @@ static int usb_id(const char *target_path)
 	struct sysfs_device *target_dev;
 	struct sysfs_device *host_dev, *interface_dev, *usb_dev;
 	struct sysfs_attribute *scsi_model, *scsi_vendor, *scsi_type, *scsi_rev;
-	struct sysfs_attribute *usb_model, *usb_vendor, *usb_rev, *usb_serial;
+	struct sysfs_attribute *usb_model = NULL, *usb_vendor = NULL, *usb_rev, *usb_serial;
 	struct sysfs_attribute *if_class, *if_subclass;
 	int if_class_num;
 	int protocol = 0;
@@ -322,11 +324,12 @@ static int usb_id(const char *target_path)
 	if_class = sysfs_get_device_attr(interface_dev, "bInterfaceClass");
 	if (!if_class) {
 		info("%s: cannot get bInterfaceClass attribute", interface_dev->name);
-		return -1;
+		return 1;
 	}
 	if_class_num = strtoul(if_class->value, NULL, 16);
 	if (if_class_num != 8) {
 		set_usb_iftype(type_str, if_class->value, sizeof(type_str) - 1);
+		protocol = 0;
 	} else {
 		if_subclass = sysfs_get_device_attr(interface_dev, 
 						    "bInterfaceSubClass");
@@ -338,29 +341,29 @@ static int usb_id(const char *target_path)
 		/* Generic SPC-2 device */
 		scsi_vendor = sysfs_get_device_attr(scsi_dev, "vendor");
 		if (!scsi_vendor) {
-			info("%s: cannot get vendor attribute", scsi_dev->name);
-			return -1;
+			info("%s: cannot get SCSI vendor attribute", scsi_dev->name);
+			return 1;
 		}
 		set_str(vendor_str, scsi_vendor->value, sizeof(vendor_str)-1);
 
 		scsi_model = sysfs_get_device_attr(scsi_dev, "model");
 		if (!scsi_model) {
-			info("%s: cannot get model attribute", scsi_dev->name);
-			return -1;
+			info("%s: cannot get SCSI model attribute", scsi_dev->name);
+			return 1;
 		}
 		set_str(model_str, scsi_model->value, sizeof(model_str)-1);
 
 		scsi_type = sysfs_get_device_attr(scsi_dev, "type");
 		if (!scsi_type) {
-			info("%s: cannot get type attribute", scsi_dev->name);
-			return -1;
+			info("%s: cannot get SCSI type attribute", scsi_dev->name);
+			return 1;
 		}
 		set_scsi_type(type_str, scsi_type->value, sizeof(type_str)-1);
 
 		scsi_rev = sysfs_get_device_attr(scsi_dev, "rev");
 		if (!scsi_rev) {
-			info("%s: cannot get type attribute", scsi_dev->name);
-			return -1;
+			info("%s: cannot get SCSI revision attribute", scsi_dev->name);
+			return 1;
 		}
 		set_str(revision_str, scsi_rev->value, sizeof(revision_str)-1);
 
@@ -368,19 +371,29 @@ static int usb_id(const char *target_path)
 
 	/* Fallback to USB vendor & device */
 	if (vendor_str[0] == '\0') {
-		usb_vendor = sysfs_get_device_attr(usb_dev, "manufacturer");
+		if (!use_num_info)
+			if (!(usb_vendor = sysfs_get_device_attr(usb_dev, "manufacturer")))
+				dbg("No USB vendor string found, using idVendor");
+
 		if (!usb_vendor) {
-			dbg("No USB vendor string found, using idVendor");
-			usb_vendor = sysfs_get_device_attr(usb_dev, "idVendor");
+			if (!(usb_vendor = sysfs_get_device_attr(usb_dev, "idVendor"))) {
+				dbg("No USB vendor information available\n");
+				sprintf(vendor_str,"0000");
+			}
 		}
 		set_str(vendor_str,usb_vendor->value, sizeof(vendor_str) - 1);
 	}
 	
 	if (model_str[0] == '\0') {
-		usb_model = sysfs_get_device_attr(usb_dev, "product");
+		if (!use_num_info)
+			if (!(usb_model = sysfs_get_device_attr(usb_dev, "product")))
+				dbg("No USB model string found, using idProduct");
+		
 		if (!usb_model) {
-			dbg("No USB model string found, using idProduct");
-			usb_model = sysfs_get_device_attr(usb_dev, "idProduct");
+			if (!(usb_model = sysfs_get_device_attr(usb_dev, "idProduct"))) {
+				dbg("No USB model information available\n");
+				sprintf(model_str,"0000");
+			}
 		}
 		set_str(model_str, usb_model->value, sizeof(model_str) - 1);
 	}
@@ -417,13 +430,20 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	while ((option = getopt(argc, argv, "ux")) != -1 ) {
+	while ((option = getopt(argc, argv, "dnux")) != -1 ) {
 		if (optarg)
 			dbg("option '%c' arg '%s'", option, optarg);
 		else
 			dbg("option '%c'", option);
 
 		switch (option) {
+		case 'd':
+			debug = 1;
+			break;
+		case 'n':
+			use_num_info=1;
+			use_usb_info=1;
+			break;
 		case 'u':
 			use_usb_info=1;
 			break;
@@ -432,7 +452,7 @@ int main(int argc, char **argv)
 			break;
 		default:
 			info("Unknown or bad option '%c' (0x%x)", option, option);
-			retval = -1;
+			retval = 1;
 			break;
 		}
 	}
@@ -452,25 +472,27 @@ int main(int argc, char **argv)
 
 	retval = usb_id(target_path);
 
-	if (export) {
-		printf("ID_VENDOR=%s\n", vendor_str);
-		printf("ID_MODEL=%s\n", model_str);
-		printf("ID_REVISION=%s\n", revision_str);
-		if (serial_str[0] == '\0') {
-			printf("ID_SERIAL=%s_%s\n", 
-			       vendor_str, model_str);
-		} else {
-			printf("ID_SERIAL=%s_%s_%s\n", 
-			       vendor_str, model_str, serial_str);
-		}
-		printf("ID_TYPE=%s\n", type_str);
-	} else {
-		if (serial_str[0] == '\0') {
-			printf("%s_%s\n", 
-			       vendor_str, model_str);
+	if (retval == 0) {
+		if (export) {
+			printf("ID_VENDOR=%s\n", vendor_str);
+			printf("ID_MODEL=%s\n", model_str);
+			printf("ID_REVISION=%s\n", revision_str);
+			if (serial_str[0] == '\0') {
+				printf("ID_SERIAL=%s_%s\n", 
+				       vendor_str, model_str);
+			} else {
+				printf("ID_SERIAL=%s_%s_%s\n", 
+				       vendor_str, model_str, serial_str);
+			}
+			printf("ID_TYPE=%s\n", type_str);
 		} else {
-			printf("%s_%s_%s\n", 
-			       vendor_str, model_str, serial_str);
+			if (serial_str[0] == '\0') {
+				printf("%s_%s\n", 
+				       vendor_str, model_str);
+			} else {
+				printf("%s_%s_%s\n", 
+				       vendor_str, model_str, serial_str);
+			}
 		}
 	}
 	exit(retval);