Exemple #1
0
static int set_inq_values(struct scsi_id_device *dev_scsi, const char *path) {
        int retval;

        dev_scsi->use_sg = sg_version;

        retval = scsi_std_inquiry(dev_scsi, path);
        if (retval)
                return retval;

        udev_util_encode_string(dev_scsi->vendor, vendor_enc_str, sizeof(vendor_enc_str));
        udev_util_encode_string(dev_scsi->model, model_enc_str, sizeof(model_enc_str));

        util_replace_whitespace(dev_scsi->vendor, vendor_str, sizeof(vendor_str)-1);
        util_replace_chars(vendor_str, NULL);
        util_replace_whitespace(dev_scsi->model, model_str, sizeof(model_str)-1);
        util_replace_chars(model_str, NULL);
        set_type(dev_scsi->type, type_str, sizeof(type_str));
        util_replace_whitespace(dev_scsi->revision, revision_str, sizeof(revision_str)-1);
        util_replace_chars(revision_str, NULL);
        return 0;
}
Exemple #2
0
/*
 * scsi_id: try to get an id, if one is found, printf it to stdout.
 * returns a value passed to exit() - 0 if printed an id, else 1.
 */
static int scsi_id(char *maj_min_dev) {
        struct scsi_id_device dev_scsi = {};
        int good_dev;
        int page_code;
        int retval = 0;

        if (set_inq_values(&dev_scsi, maj_min_dev) < 0) {
                retval = 1;
                goto out;
        }

        /* get per device (vendor + model) options from the config file */
        per_dev_options(&dev_scsi, &good_dev, &page_code);
        if (!good_dev) {
                retval = 1;
                goto out;
        }

        /* read serial number from mode pages (no values for optical drives) */
        scsi_get_serial(&dev_scsi, maj_min_dev, page_code, MAX_SERIAL_LEN);

        if (export) {
                char serial_str[MAX_SERIAL_LEN];

                printf("ID_SCSI=1\n");
                printf("ID_VENDOR=%s\n", vendor_str);
                printf("ID_VENDOR_ENC=%s\n", vendor_enc_str);
                printf("ID_MODEL=%s\n", model_str);
                printf("ID_MODEL_ENC=%s\n", model_enc_str);
                printf("ID_REVISION=%s\n", revision_str);
                printf("ID_TYPE=%s\n", type_str);
                if (dev_scsi.serial[0] != '\0') {
                        util_replace_whitespace(dev_scsi.serial, serial_str, sizeof(serial_str)-1);
                        util_replace_chars(serial_str, NULL);
                        printf("ID_SERIAL=%s\n", serial_str);
                        util_replace_whitespace(dev_scsi.serial_short, serial_str, sizeof(serial_str)-1);
                        util_replace_chars(serial_str, NULL);
                        printf("ID_SERIAL_SHORT=%s\n", serial_str);
                }
                if (dev_scsi.wwn[0] != '\0') {
                        printf("ID_WWN=0x%s\n", dev_scsi.wwn);
                        if (dev_scsi.wwn_vendor_extension[0] != '\0') {
                                printf("ID_WWN_VENDOR_EXTENSION=0x%s\n", dev_scsi.wwn_vendor_extension);
                                printf("ID_WWN_WITH_EXTENSION=0x%s%s\n", dev_scsi.wwn, dev_scsi.wwn_vendor_extension);
                        } else
                                printf("ID_WWN_WITH_EXTENSION=0x%s\n", dev_scsi.wwn);
                }
                if (dev_scsi.tgpt_group[0] != '\0')
                        printf("ID_TARGET_PORT=%s\n", dev_scsi.tgpt_group);
                if (dev_scsi.unit_serial_number[0] != '\0')
                        printf("ID_SCSI_SERIAL=%s\n", dev_scsi.unit_serial_number);
                goto out;
        }

        if (dev_scsi.serial[0] == '\0') {
                retval = 1;
                goto out;
        }

        if (reformat_serial) {
                char serial_str[MAX_SERIAL_LEN];

                util_replace_whitespace(dev_scsi.serial, serial_str, sizeof(serial_str)-1);
                util_replace_chars(serial_str, NULL);
                printf("%s\n", serial_str);
                goto out;
        }

        printf("%s\n", dev_scsi.serial);
out:
        return retval;
}
/*
 * A unique USB identification is generated like this:
 *
 * 1.) Get the USB device type from InterfaceClass and InterfaceSubClass
 * 2.) If the device type is 'Mass-Storage/SPC-2' or 'Mass-Storage/RBC',
 *     use the SCSI vendor and model as USB-Vendor and USB-model.
 * 3.) Otherwise, use the USB manufacturer and product as
 *     USB-Vendor and USB-model. Any non-printable characters
 *     in those strings will be skipped; a slash '/' will be converted
 *     into a full stop '.'.
 * 4.) If that fails, too, we will use idVendor and idProduct
 *     as USB-Vendor and USB-model.
 * 5.) The USB identification is the USB-vendor and USB-model
 *     string concatenated with an underscore '_'.
 * 6.) If the device supplies a serial number, this number
 *     is concatenated with the identification with an underscore '_'.
 */
static int builtin_usb_id(struct udev_device *dev, int argc, char *argv[], bool test) {
        char vendor_str[64];
        char vendor_str_enc[256];
        const char *vendor_id;
        char model_str[64];
        char model_str_enc[256];
        const char *product_id;
        char serial_str[UTIL_NAME_SIZE];
        char packed_if_str[UTIL_NAME_SIZE];
        char revision_str[64];
        char type_str[64];
        char instance_str[64];
        const char *ifnum = NULL;
        const char *driver = NULL;
        char serial[256];

        struct udev_device *dev_interface = NULL;
        struct udev_device *dev_usb = NULL;
        const char *if_class, *if_subclass;
        int if_class_num;
        int protocol = 0;
        size_t l;
        char *s;

        vendor_str[0] = '\0';
        model_str[0] = '\0';
        serial_str[0] = '\0';
        packed_if_str[0] = '\0';
        revision_str[0] = '\0';
        type_str[0] = '\0';
        instance_str[0] = '\0';

        /* shortcut, if we are called directly for a "usb_device" type */
        if (udev_device_get_devtype(dev) != NULL && streq(udev_device_get_devtype(dev), "usb_device")) {
                dev_if_packed_info(dev, packed_if_str, sizeof(packed_if_str));
                dev_usb = dev;
                goto fallback;
        }

        /* usb interface directory */
        dev_interface = udev_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_interface");
        if (dev_interface == NULL) {
                log_debug("unable to access usb_interface device of '%s'",
                     udev_device_get_syspath(dev));
                return EXIT_FAILURE;
        }

        ifnum = udev_device_get_sysattr_value(dev_interface, "bInterfaceNumber");
        driver = udev_device_get_sysattr_value(dev_interface, "driver");

        if_class = udev_device_get_sysattr_value(dev_interface, "bInterfaceClass");
        if (!if_class) {
                log_debug("%s: cannot get bInterfaceClass attribute",
                     udev_device_get_sysname(dev));
                return EXIT_FAILURE;
        }

        if_class_num = strtoul(if_class, NULL, 16);
        if (if_class_num == 8) {
                /* mass storage */
                if_subclass = udev_device_get_sysattr_value(dev_interface, "bInterfaceSubClass");
                if (if_subclass != NULL)
                        protocol = set_usb_mass_storage_ifsubtype(type_str, if_subclass, sizeof(type_str)-1);
        } else {
                set_usb_iftype(type_str, if_class_num, sizeof(type_str)-1);
        }

        log_debug("%s: if_class %d protocol %d",
             udev_device_get_syspath(dev_interface), if_class_num, protocol);

        /* usb device directory */
        dev_usb = udev_device_get_parent_with_subsystem_devtype(dev_interface, "usb", "usb_device");
        if (!dev_usb) {
                log_debug("unable to find parent 'usb' device of '%s'",
                     udev_device_get_syspath(dev));
                return EXIT_FAILURE;
        }

        /* all interfaces of the device in a single string */
        dev_if_packed_info(dev_usb, packed_if_str, sizeof(packed_if_str));

        /* mass storage : SCSI or ATAPI */
        if ((protocol == 6 || protocol == 2)) {
                struct udev_device *dev_scsi;
                const char *scsi_model, *scsi_vendor, *scsi_type, *scsi_rev;
                int host, bus, target, lun;

                /* get scsi device */
                dev_scsi = udev_device_get_parent_with_subsystem_devtype(dev, "scsi", "scsi_device");
                if (dev_scsi == NULL) {
                        log_debug("unable to find parent 'scsi' device of '%s'",
                             udev_device_get_syspath(dev));
                        goto fallback;
                }
                if (sscanf(udev_device_get_sysname(dev_scsi), "%d:%d:%d:%d", &host, &bus, &target, &lun) != 4) {
                        log_debug("invalid scsi device '%s'", udev_device_get_sysname(dev_scsi));
                        goto fallback;
                }

                /* Generic SPC-2 device */
                scsi_vendor = udev_device_get_sysattr_value(dev_scsi, "vendor");
                if (!scsi_vendor) {
                        log_debug("%s: cannot get SCSI vendor attribute",
                             udev_device_get_sysname(dev_scsi));
                        goto fallback;
                }
                udev_util_encode_string(scsi_vendor, vendor_str_enc, sizeof(vendor_str_enc));
                util_replace_whitespace(scsi_vendor, vendor_str, sizeof(vendor_str)-1);
                util_replace_chars(vendor_str, NULL);

                scsi_model = udev_device_get_sysattr_value(dev_scsi, "model");
                if (!scsi_model) {
                        log_debug("%s: cannot get SCSI model attribute",
                             udev_device_get_sysname(dev_scsi));
                        goto fallback;
                }
                udev_util_encode_string(scsi_model, model_str_enc, sizeof(model_str_enc));
                util_replace_whitespace(scsi_model, model_str, sizeof(model_str)-1);
                util_replace_chars(model_str, NULL);

                scsi_type = udev_device_get_sysattr_value(dev_scsi, "type");
                if (!scsi_type) {
                        log_debug("%s: cannot get SCSI type attribute",
                             udev_device_get_sysname(dev_scsi));
                        goto fallback;
                }
                set_scsi_type(type_str, scsi_type, sizeof(type_str)-1);

                scsi_rev = udev_device_get_sysattr_value(dev_scsi, "rev");
                if (!scsi_rev) {
                        log_debug("%s: cannot get SCSI revision attribute",
                             udev_device_get_sysname(dev_scsi));
                        goto fallback;
                }
                util_replace_whitespace(scsi_rev, revision_str, sizeof(revision_str)-1);
                util_replace_chars(revision_str, NULL);

                /*
                 * some broken devices have the same identifiers
                 * for all luns, export the target:lun number
                 */
                sprintf(instance_str, "%d:%d", target, lun);
        }

fallback:
        vendor_id = udev_device_get_sysattr_value(dev_usb, "idVendor");
        product_id = udev_device_get_sysattr_value(dev_usb, "idProduct");

        /* fallback to USB vendor & device */
        if (vendor_str[0] == '\0') {
                const char *usb_vendor = NULL;

                usb_vendor = udev_device_get_sysattr_value(dev_usb, "manufacturer");
                if (!usb_vendor)
                        usb_vendor = vendor_id;
                if (!usb_vendor) {
                        log_debug("No USB vendor information available");
                        return EXIT_FAILURE;
                }
                udev_util_encode_string(usb_vendor, vendor_str_enc, sizeof(vendor_str_enc));
                util_replace_whitespace(usb_vendor, vendor_str, sizeof(vendor_str)-1);
                util_replace_chars(vendor_str, NULL);
        }

        if (model_str[0] == '\0') {
                const char *usb_model = NULL;

                usb_model = udev_device_get_sysattr_value(dev_usb, "product");
                if (!usb_model)
                        usb_model = product_id;
                if (!usb_model)
                        return EXIT_FAILURE;
                udev_util_encode_string(usb_model, model_str_enc, sizeof(model_str_enc));
                util_replace_whitespace(usb_model, model_str, sizeof(model_str)-1);
                util_replace_chars(model_str, NULL);
        }

        if (revision_str[0] == '\0') {
                const char *usb_rev;

                usb_rev = udev_device_get_sysattr_value(dev_usb, "bcdDevice");
                if (usb_rev) {
                        util_replace_whitespace(usb_rev, revision_str, sizeof(revision_str)-1);
                        util_replace_chars(revision_str, NULL);
                }
        }

        if (serial_str[0] == '\0') {
                const char *usb_serial;

                usb_serial = udev_device_get_sysattr_value(dev_usb, "serial");
                if (usb_serial) {
                        const unsigned char *p;

                        /* http://msdn.microsoft.com/en-us/library/windows/hardware/gg487321.aspx */
                        for (p = (unsigned char *)usb_serial; *p != '\0'; p++)
                                if (*p < 0x20 || *p > 0x7f || *p == ',') {
                                        usb_serial = NULL;
                                        break;
                                }
                }

                if (usb_serial) {
                        util_replace_whitespace(usb_serial, serial_str, sizeof(serial_str)-1);
                        util_replace_chars(serial_str, NULL);
                }
        }

        s = serial;
        l = strpcpyl(&s, sizeof(serial), vendor_str, "_", model_str, NULL);
        if (serial_str[0] != '\0')
                l = strpcpyl(&s, l, "_", serial_str, NULL);

        if (instance_str[0] != '\0')
                strpcpyl(&s, l, "-", instance_str, NULL);

        udev_builtin_add_property(dev, test, "ID_VENDOR", vendor_str);
        udev_builtin_add_property(dev, test, "ID_VENDOR_ENC", vendor_str_enc);
        udev_builtin_add_property(dev, test, "ID_VENDOR_ID", vendor_id);
        udev_builtin_add_property(dev, test, "ID_MODEL", model_str);
        udev_builtin_add_property(dev, test, "ID_MODEL_ENC", model_str_enc);
        udev_builtin_add_property(dev, test, "ID_MODEL_ID", product_id);
        udev_builtin_add_property(dev, test, "ID_REVISION", revision_str);
        udev_builtin_add_property(dev, test, "ID_SERIAL", serial);
        if (serial_str[0] != '\0')
                udev_builtin_add_property(dev, test, "ID_SERIAL_SHORT", serial_str);
        if (type_str[0] != '\0')
                udev_builtin_add_property(dev, test, "ID_TYPE", type_str);
        if (instance_str[0] != '\0')
                udev_builtin_add_property(dev, test, "ID_INSTANCE", instance_str);
        udev_builtin_add_property(dev, test, "ID_BUS", "usb");
        if (packed_if_str[0] != '\0')
                udev_builtin_add_property(dev, test, "ID_USB_INTERFACES", packed_if_str);
        if (ifnum != NULL)
                udev_builtin_add_property(dev, test, "ID_USB_INTERFACE_NUM", ifnum);
        if (driver != NULL)
                udev_builtin_add_property(dev, test, "ID_USB_DRIVER", driver);
        return EXIT_SUCCESS;
}