Beispiel #1
0
static int builtin_firmware(struct udev_device *dev, int argc, char *argv[], bool test) {
        struct udev *udev = udev_device_get_udev(dev);
        static const char *searchpath[] = { FIRMWARE_PATH };
        char loadpath[UTIL_PATH_SIZE];
        char datapath[UTIL_PATH_SIZE];
        char fwpath[UTIL_PATH_SIZE];
        const char *firmware;
        FILE *fwfile = NULL;
        struct utsname kernel;
        struct stat statbuf;
        unsigned int i;
        int rc = EXIT_SUCCESS;

        firmware = udev_device_get_property_value(dev, "FIRMWARE");
        if (firmware == NULL) {
                log_error("firmware parameter missing");
                rc = EXIT_FAILURE;
                goto exit;
        }

        /* lookup firmware file */
        uname(&kernel);
        for (i = 0; i < ELEMENTSOF(searchpath); i++) {
                strscpyl(fwpath, sizeof(fwpath), searchpath[i], kernel.release, "/", firmware, NULL);
                fwfile = fopen(fwpath, "re");
                if (fwfile != NULL)
                        break;

                strscpyl(fwpath, sizeof(fwpath), searchpath[i], firmware, NULL);
                fwfile = fopen(fwpath, "re");
                if (fwfile != NULL)
                        break;
        }

        strscpyl(loadpath, sizeof(loadpath), udev_device_get_syspath(dev), "/loading", NULL);

        if (fwfile == NULL) {
                log_debug("did not find firmware file '%s'", firmware);
                rc = EXIT_FAILURE;
                /*
                 * Do not cancel the request in the initrd, the real root might have
                 * the firmware file and the 'coldplug' run in the real root will find
                 * this pending request and fulfill or cancel it.
                 * */
                if (!in_initrd())
                        set_loading(udev, loadpath, "-1");
                goto exit;
        }

        if (stat(fwpath, &statbuf) < 0 || statbuf.st_size == 0) {
                if (!in_initrd())
                        set_loading(udev, loadpath, "-1");
                rc = EXIT_FAILURE;
                goto exit;
        }

        if (!set_loading(udev, loadpath, "1"))
                goto exit;

        strscpyl(datapath, sizeof(datapath), udev_device_get_syspath(dev), "/data", NULL);
        if (!copy_firmware(udev, fwpath, datapath, statbuf.st_size)) {
                log_error("error sending firmware '%s' to device", firmware);
                set_loading(udev, loadpath, "-1");
                rc = EXIT_FAILURE;
                goto exit;
        };

        set_loading(udev, loadpath, "0");
exit:
        if (fwfile)
                fclose(fwfile);
        return rc;
}
Beispiel #2
0
static int builtin_firmware(struct udev_device *dev, int argc, char *argv[], bool test)
{
        struct udev *udev = udev_device_get_udev(dev);
        static const char *searchpath[] = { FIRMWARE_PATH };
        char fwencpath[UTIL_PATH_SIZE];
        char misspath[UTIL_PATH_SIZE];
        char loadpath[UTIL_PATH_SIZE];
        char datapath[UTIL_PATH_SIZE];
        char fwpath[UTIL_PATH_SIZE];
        const char *firmware;
        FILE *fwfile = NULL;
        struct utsname kernel;
        struct stat statbuf;
        unsigned int i;
        int rc = EXIT_SUCCESS;

        firmware = udev_device_get_property_value(dev, "FIRMWARE");
        if (firmware == NULL) {
                log_error("firmware parameter missing\n\n");
                rc = EXIT_FAILURE;
                goto exit;
        }

        /* lookup firmware file */
        uname(&kernel);
        for (i = 0; i < ELEMENTSOF(searchpath); i++) {
                util_strscpyl(fwpath, sizeof(fwpath), searchpath[i], kernel.release, "/", firmware, NULL);
                fwfile = fopen(fwpath, "re");
                if (fwfile != NULL)
                        break;

                util_strscpyl(fwpath, sizeof(fwpath), searchpath[i], firmware, NULL);
                fwfile = fopen(fwpath, "re");
                if (fwfile != NULL)
                        break;
        }

        util_path_encode(firmware, fwencpath, sizeof(fwencpath));
        util_strscpyl(misspath, sizeof(misspath), "/run/udev/firmware-missing/", fwencpath, NULL);
        util_strscpyl(loadpath, sizeof(loadpath), udev_device_get_syspath(dev), "/loading", NULL);

        if (fwfile == NULL) {
                int err;

                /* This link indicates the missing firmware file and the associated device */
                log_debug("did not find firmware file '%s'\n", firmware);
                do {
                        err = mkdir_parents(misspath, 0755);
                        if (err != 0 && err != -ENOENT)
                                break;
                        err = symlink(udev_device_get_devpath(dev), misspath);
                        if (err != 0)
                                err = -errno;
                } while (err == -ENOENT);
                rc = EXIT_FAILURE;
                /*
                 * Do not cancel the request in the initrd, the real root might have
                 * the firmware file and the 'coldplug' run in the real root will find
                 * this pending request and fulfill or cancel it.
                 * */
                if (!in_initrd())
                        set_loading(udev, loadpath, "-1");
                goto exit;
        }

        if (stat(fwpath, &statbuf) < 0 || statbuf.st_size == 0) {
                if (!in_initrd())
                        set_loading(udev, loadpath, "-1");
                rc = EXIT_FAILURE;
                goto exit;
        }

        if (unlink(misspath) == 0)
                util_delete_path(udev, misspath);

        if (!set_loading(udev, loadpath, "1"))
                goto exit;

        util_strscpyl(datapath, sizeof(datapath), udev_device_get_syspath(dev), "/data", NULL);
        if (!copy_firmware(udev, fwpath, datapath, statbuf.st_size)) {
                log_error("error sending firmware '%s' to device\n", firmware);
                set_loading(udev, loadpath, "-1");
                rc = EXIT_FAILURE;
                goto exit;
        };

        set_loading(udev, loadpath, "0");
exit:
        if (fwfile)
                fclose(fwfile);
        return rc;
}