diff options
Diffstat (limited to 'src/udev/udev-builtin-hwdb.c')
| -rw-r--r-- | src/udev/udev-builtin-hwdb.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/src/udev/udev-builtin-hwdb.c b/src/udev/udev-builtin-hwdb.c deleted file mode 100644 index 5e0e7ebb11..0000000000 --- a/src/udev/udev-builtin-hwdb.c +++ /dev/null @@ -1,216 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2012 Kay Sievers <kay@vrfy.org> - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdio.h> -#include <stdlib.h> -#include <fnmatch.h> -#include <getopt.h> - -#include "udev.h" -#include "sd-hwdb.h" - -#include "hwdb-util.h" - -static sd_hwdb *hwdb; - -int udev_builtin_hwdb_lookup(struct udev_device *dev, - const char *prefix, const char *modalias, - const char *filter, bool test) { - _cleanup_free_ const char *lookup = NULL; - const char *key, *value; - int n = 0; - - if (!hwdb) - return -ENOENT; - - if (prefix) { - lookup = strjoin(prefix, modalias, NULL); - if (!lookup) - return -ENOMEM; - modalias = lookup; - } - - SD_HWDB_FOREACH_PROPERTY(hwdb, modalias, key, value) { - if (filter && fnmatch(filter, key, FNM_NOESCAPE) != 0) - continue; - - if (udev_builtin_add_property(dev, test, key, value) < 0) - return -ENOMEM; - n++; - } - return n; -} - -static const char *modalias_usb(struct udev_device *dev, char *s, size_t size) { - const char *v, *p; - int vn, pn; - - v = udev_device_get_sysattr_value(dev, "idVendor"); - if (!v) - return NULL; - p = udev_device_get_sysattr_value(dev, "idProduct"); - if (!p) - return NULL; - vn = strtol(v, NULL, 16); - if (vn <= 0) - return NULL; - pn = strtol(p, NULL, 16); - if (pn <= 0) - return NULL; - snprintf(s, size, "usb:v%04Xp%04X*", vn, pn); - return s; -} - -static int udev_builtin_hwdb_search(struct udev_device *dev, struct udev_device *srcdev, - const char *subsystem, const char *prefix, - const char *filter, bool test) { - struct udev_device *d; - char s[16]; - bool last = false; - int r = 0; - - for (d = srcdev; d && !last; d = udev_device_get_parent(d)) { - const char *dsubsys; - const char *modalias = NULL; - - dsubsys = udev_device_get_subsystem(d); - if (!dsubsys) - continue; - - /* look only at devices of a specific subsystem */ - if (subsystem && !streq(dsubsys, subsystem)) - continue; - - modalias = udev_device_get_property_value(d, "MODALIAS"); - - if (streq(dsubsys, "usb") && streq_ptr(udev_device_get_devtype(d), "usb_device")) { - /* if the usb_device does not have a modalias, compose one */ - if (!modalias) - modalias = modalias_usb(d, s, sizeof(s)); - - /* avoid looking at any parent device, they are usually just a USB hub */ - last = true; - } - - if (!modalias) - continue; - - r = udev_builtin_hwdb_lookup(dev, prefix, modalias, filter, test); - if (r > 0) - break; - } - - return r; -} - -static int builtin_hwdb(struct udev_device *dev, int argc, char *argv[], bool test) { - static const struct option options[] = { - { "filter", required_argument, NULL, 'f' }, - { "device", required_argument, NULL, 'd' }, - { "subsystem", required_argument, NULL, 's' }, - { "lookup-prefix", required_argument, NULL, 'p' }, - {} - }; - const char *filter = NULL; - const char *device = NULL; - const char *subsystem = NULL; - const char *prefix = NULL; - struct udev_device *srcdev; - - if (!hwdb) - return EXIT_FAILURE; - - for (;;) { - int option; - - option = getopt_long(argc, argv, "f:d:s:p:", options, NULL); - if (option == -1) - break; - - switch (option) { - case 'f': - filter = optarg; - break; - - case 'd': - device = optarg; - break; - - case 's': - subsystem = optarg; - break; - - case 'p': - prefix = optarg; - break; - } - } - - /* query a specific key given as argument */ - if (argv[optind]) { - if (udev_builtin_hwdb_lookup(dev, prefix, argv[optind], filter, test) > 0) - return EXIT_SUCCESS; - return EXIT_FAILURE; - } - - /* read data from another device than the device we will store the data */ - if (device) { - srcdev = udev_device_new_from_device_id(udev_device_get_udev(dev), device); - if (!srcdev) - return EXIT_FAILURE; - } else - srcdev = dev; - - if (udev_builtin_hwdb_search(dev, srcdev, subsystem, prefix, filter, test) > 0) - return EXIT_SUCCESS; - return EXIT_FAILURE; -} - -/* called at udev startup and reload */ -static int builtin_hwdb_init(struct udev *udev) { - int r; - - if (hwdb) - return 0; - - r = sd_hwdb_new(&hwdb); - if (r < 0) - return r; - - return 0; -} - -/* called on udev shutdown and reload request */ -static void builtin_hwdb_exit(struct udev *udev) { - hwdb = sd_hwdb_unref(hwdb); -} - -/* called every couple of seconds during event activity; 'true' if config has changed */ -static bool builtin_hwdb_validate(struct udev *udev) { - return hwdb_validate(hwdb); -} - -const struct udev_builtin udev_builtin_hwdb = { - .name = "hwdb", - .cmd = builtin_hwdb, - .init = builtin_hwdb_init, - .exit = builtin_hwdb_exit, - .validate = builtin_hwdb_validate, - .help = "Hardware database", -}; |