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hwdb: add --device=<device-id> and --filter=<key name glob>

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This commit is contained in:
Kay Sievers 2013-07-01 22:34:43 +02:00
parent d9b17672eb
commit 67410e9f73
5 changed files with 38 additions and 10 deletions
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2
src/libudev/libudev-device.c
View File

@ -780,7 +780,7 @@ _public_ struct udev_device *udev_device_new_from_devnum(struct udev *udev, char
*
* Returns: a new udev device, or #NULL, if it does not exist
**/
_public_ struct udev_device *udev_device_new_from_device_id(struct udev *udev, char *id)
_public_ struct udev_device *udev_device_new_from_device_id(struct udev *udev, const char *id)
{
char type;
int maj, min;

2
src/libudev/libudev.h
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@ -81,7 +81,7 @@ struct udev *udev_device_get_udev(struct udev_device *udev_device);
struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath);
struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum);
struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname);
struct udev_device *udev_device_new_from_device_id(struct udev *udev, char *id);
struct udev_device *udev_device_new_from_device_id(struct udev *udev, const char *id);
struct udev_device *udev_device_new_from_environment(struct udev *udev);
/* udev_device_get_parent_*() does not take a reference on the returned device, it is automatically unref'd with the parent */
struct udev_device *udev_device_get_parent(struct udev_device *udev_device);

40
src/udev/udev-builtin-hwdb.c
View File

@ -23,13 +23,15 @@
#include <inttypes.h>
#include <ctype.h>
#include <stdlib.h>
#include <fnmatch.h>
#include <getopt.h>
#include "udev.h"
static struct udev_hwdb *hwdb;
int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool test) {
int udev_builtin_hwdb_lookup(struct udev_device *dev,
const char *modalias, const char *filter, bool test) {
struct udev_list_entry *entry;
int n = 0;
@ -37,6 +39,9 @@ int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool
return -ENOENT;
udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0)) {
if (filter && fnmatch(filter, udev_list_entry_get_name(entry), FNM_NOESCAPE) != 0)
continue;
if (udev_builtin_add_property(dev, test,
udev_list_entry_get_name(entry),
udev_list_entry_get_value(entry)) < 0)
@ -66,12 +71,13 @@ static const char *modalias_usb(struct udev_device *dev, char *s, size_t size) {
return s;
}
static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsystem, bool test) {
static int udev_builtin_hwdb_search(struct udev_device *dev, struct udev_device *srcdev,
const char *subsystem, const char *filter, bool test) {
struct udev_device *d;
char s[16];
int n = 0;
for (d = dev; d; d = udev_device_get_parent(d)) {
for (d = srcdev; d; d = udev_device_get_parent(d)) {
const char *dsubsys;
const char *modalias = NULL;
@ -85,14 +91,15 @@ static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsyst
/* the usb_device does not have a modalias, compose one */
if (streq(dsubsys, "usb"))
modalias = modalias_usb(dev, s, sizeof(s));
modalias = modalias_usb(d, s, sizeof(s));
if (!modalias)
modalias = udev_device_get_property_value(d, "MODALIAS");
if (!modalias)
continue;
n = udev_builtin_hwdb_lookup(dev, modalias, test);
n = udev_builtin_hwdb_lookup(dev, modalias, filter, test);
if (n > 0)
break;
}
@ -102,10 +109,15 @@ static int udev_builtin_hwdb_search(struct udev_device *dev, const char *subsyst
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' },
{}
};
const char *filter = NULL;
const char *device = NULL;
const char *subsystem = NULL;
struct udev_device *srcdev;
if (!hwdb)
return EXIT_FAILURE;
@ -118,13 +130,29 @@ static int builtin_hwdb(struct udev_device *dev, int argc, char *argv[], bool te
break;
switch (option) {
case 'f':
filter = optarg;
break;
case 'd':
device = optarg;
break;
case 's':
subsystem = optarg;
break;
}
}
if (udev_builtin_hwdb_search(dev, subsystem, test) < 0)
/* 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, filter, test) < 0)
return EXIT_FAILURE;
return EXIT_SUCCESS;
}

2
src/udev/udev-builtin-net_id.c
View File

@ -396,7 +396,7 @@ static int ieee_oui(struct udev_device *dev, struct netnames *names, bool test)
snprintf(str, sizeof(str), "OUI:%02X%02X%02X%02X%02X%02X",
names->mac[0], names->mac[1], names->mac[2],
names->mac[3], names->mac[4], names->mac[5]);
udev_builtin_hwdb_lookup(dev, str, test);
udev_builtin_hwdb_lookup(dev, str, NULL, test);
return 0;
}

2
src/udev/udev.h
View File

@ -190,7 +190,7 @@ int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const c
void udev_builtin_list(struct udev *udev);
bool udev_builtin_validate(struct udev *udev);
int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val);
int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool test);
int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, const char *filter, bool test);
/* udev logging */
void udev_main_log(struct udev *udev, int priority,