+++ /dev/null
-/*
- * udevruler.c - simple udev-rule composer
- *
- * Reads the udev-db to get all currently known devices and
- * scans the sysfs device chain for the choosen device to select attributes
- * to compose a rule for the udev.rules file to uniquely name this device.
- *
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <newt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <ctype.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "udev.h"
-#include "udev_lib.h"
-#include "udev_version.h"
-#include "udevdb.h"
-#include "logging.h"
-#include "libsysfs/sysfs.h"
-#include "list.h"
-
-#ifdef LOG
-unsigned char logname[LOGNAME_SIZE];
-void log_message(int level, const char *format, ...)
-{
- va_list args;
-
- if (!udev_log)
- return;
-
- va_start(args, format);
- vsyslog(level, format, args);
- va_end(args);
-}
-#endif
-
-static char *dev_blacklist[] = {
- "tty",
- "pty",
- "zero",
- "null",
- "kmsg",
- "rtc",
- "timer",
- "full",
- "kmem",
- "mem",
- "random",
- "urandom",
- "console",
- "port",
- ""
-};
-
-struct device {
- struct list_head list;
- char name[NAME_SIZE];
- char devpath[DEVPATH_SIZE];
- int config_line;
- char config_file[NAME_SIZE];
- long config_uptime;
- int added;
-};
-
-static LIST_HEAD(device_list);
-static int device_count;
-
-/* callback for database dump */
-static int add_record(char *path, struct udevice *udev)
-{
- struct device *dev;
- struct device *loop_dev;
- int i = 0;
-
- while (dev_blacklist[i][0] != '\0') {
- if (strncmp(udev->name, dev_blacklist[i], strlen(dev_blacklist[i])) == 0)
- goto exit;
- i++;
- }
-
- dev = malloc(sizeof(struct device));
- if (dev == NULL) {
- printf("error malloc\n");
- exit(2);
- }
- strfieldcpy(dev->name, udev->name);
- strfieldcpy(dev->devpath, path);
- dev->config_line = udev->config_line;
- strfieldcpy(dev->config_file, udev->config_file);
- dev->config_uptime = udev->config_uptime;
- dev->added = 0;
-
- /* sort in lexical order */
- list_for_each_entry(loop_dev, &device_list, list) {
- if (strcmp(loop_dev->name, dev->name) > 0) {
- break;
- }
- }
-
- list_add_tail(&dev->list, &loop_dev->list);
- device_count++;
-
-exit:
- return 0;
-}
-
-/* get all devices from udev database */
-static int get_all_devices(void)
-{
- int retval;
-
- device_count = 0;
- INIT_LIST_HEAD(&device_list);
-
- retval = udevdb_open_ro();
- if (retval != 0) {
- printf("unable to open udev database\n");
- exit(1);
- }
-
- udevdb_call_foreach(add_record);
- udevdb_exit();
-
- return 0;
-}
-
-struct attribute {
- struct list_head list;
- int level;
- char key[NAME_SIZE];
-};
-
-static LIST_HEAD(attribute_list);
-static int attribute_count;
-
-static int add_attribute(const char *key, int level)
-{
- struct attribute *attr;
-
- dbg("add attribute '%s'", key);
- attr = malloc(sizeof(struct attribute));
- if (attr == NULL) {
- printf("error malloc\n");
- exit(2);
- }
-
- strfieldcpy(attr->key, key);
- attr->level = level;
- list_add_tail(&attr->list, &attribute_list);
- attribute_count++;
- return 0;
-}
-
-static int add_all_attributes(const char *path, int level)
-{
- struct dlist *attributes;
- struct sysfs_attribute *attr;
- struct sysfs_directory *sysfs_dir;
- char value[NAME_SIZE];
- char key[NAME_SIZE];
- int len;
- int retval = 0;
-
- dbg("look at '%s', level %i", path, level);
-
- sysfs_dir = sysfs_open_directory(path);
- if (sysfs_dir == NULL)
- return -1;
-
- attributes = sysfs_get_dir_attributes(sysfs_dir);
- if (attributes == NULL) {
- retval = -1;
- return 0;
- }
-
- dlist_for_each_data(attributes, attr, struct sysfs_attribute)
- if (attr->value != NULL) {
- dbg("found attribute '%s'", attr->name);
- strfieldcpy(value, attr->value);
- len = strlen(value);
- if (len == 0)
- continue;
-
- /* skip very long attributes */
- if (len > 40)
- continue;
-
- /* remove trailing newline */
- if (value[len-1] == '\n') {
- value[len-1] = '\0';
- len--;
- }
-
- /* skip nonprintable values */
- while (len) {
- if (!isprint(value[len-1]))
- break;
- len--;
- }
- if (len == 0) {
- sprintf(key, "SYSFS{%s}=\"%s\"", attr->name, value);
- add_attribute(key, level);
- }
- }
-
- sysfs_close_directory(sysfs_dir);
- return 0;
-}
-
-static int get_all_attributes(char *path)
-{
- struct sysfs_class_device *class_dev;
- struct sysfs_class_device *class_dev_parent;
- struct sysfs_device *sysfs_dev;
- struct sysfs_device *sysfs_dev_parent;
- char key[NAME_SIZE];
- int retval = 0;
- int level = 0;
-
- attribute_count = 0;
- INIT_LIST_HEAD(&attribute_list);
-
- /* get the class dev */
- class_dev = sysfs_open_class_device_path(path);
- if (class_dev == NULL) {
- dbg("couldn't get the class device");
- return -1;
- }
-
- /* open sysfs class device directory and get all attributes */
- if (add_all_attributes(class_dev->path, level) != 0) {
- dbg("couldn't open class device directory");
- retval = -1;
- goto exit;
- }
- level++;
-
- /* get the device link (if parent exists look here) */
- class_dev_parent = sysfs_get_classdev_parent(class_dev);
- if (class_dev_parent != NULL)
- sysfs_dev = sysfs_get_classdev_device(class_dev_parent);
- else
- sysfs_dev = sysfs_get_classdev_device(class_dev);
-
- /* look the device chain upwards */
- while (sysfs_dev != NULL) {
- if (sysfs_dev->bus[0] != '\0') {
- add_attribute("", level);
- sprintf(key, "BUS=\"%s\"", sysfs_dev->bus);
- add_attribute(key, level);
- sprintf(key, "ID=\"%s\"", sysfs_dev->bus_id);
- add_attribute(key, level);
-
- /* open sysfs device directory and print all attributes */
- add_all_attributes(sysfs_dev->path, level);
- }
- level++;
-
- sysfs_dev_parent = sysfs_get_device_parent(sysfs_dev);
- if (sysfs_dev_parent == NULL)
- break;
-
- sysfs_dev = sysfs_dev_parent;
- }
-
-exit:
- sysfs_close_class_device(class_dev);
- return retval;
-}
-
-
-int main(int argc, char *argv[]) {
- newtComponent lbox, run, lattr;
- newtComponent quit, form, answer;
- newtGrid grid, grid2;
- char roottext[81];
- char path[NAME_SIZE];
- struct device *dev;
- long time_last;
- int count_last;
-
- newtInit();
- newtCls();
-
- newtWinMessage("udevruler", "Ok",
- "This program lets you select a device currently present "
- "on the system and you may choose the attributes to uniquely "
- "name the device with a udev rule.\n"
- "No configuration will be changed, it just prints the rule "
- "to place in a udev.rules configuration file. The \"%k\" in the "
- "NAME key of the printed rule may be replaced by the name the "
- "node should have.");
-
- init_logging("udevruler");
- udev_init_config();
- get_all_devices();
-
- lbox = newtListbox(2, 1, 10, NEWT_FLAG_SCROLL | NEWT_FLAG_RETURNEXIT);
-
- /* look for last discovered device */
- time_last = 0;
- list_for_each_entry(dev, &device_list, list)
- if (dev->config_uptime > time_last)
- time_last = dev->config_uptime;
-
- /* skip if more than 16 recent devices */
- count_last = 0;
- list_for_each_entry(dev, &device_list, list) {
- if (dev->config_uptime < time_last - 10)
- continue;
- count_last++;
- }
-
- /* add devices up to 10 seconds older than the last one */
- if (count_last < 16) {
- newtListboxAppendEntry(lbox, "--- last dicovered ---", NULL);
- list_for_each_entry(dev, &device_list, list) {
- if (dev->config_uptime < time_last - 10)
- continue;
-
- dbg("%s %i", dev->name, dev->config_line);
- newtListboxAppendEntry(lbox, dev->name, (void*) dev);
- dev->added = 1;
- }
- newtListboxAppendEntry(lbox, "", NULL);
- }
-
- /* add devices not catched by a rule */
- newtListboxAppendEntry(lbox, "--- not configured by a rule ---", NULL);
- list_for_each_entry(dev, &device_list, list) {
- if (dev->added)
- continue;
-
- if (dev->config_line != 0)
- continue;
-
- dbg("%s %i", dev->name, dev->config_line);
- newtListboxAppendEntry(lbox, dev->name, (void*) dev);
- dev->added = 1;
- }
- newtListboxAppendEntry(lbox, "", NULL);
-
- /* add remaining devices */
- newtListboxAppendEntry(lbox, "--- configured by a rule ---", NULL);
- list_for_each_entry(dev, &device_list, list) {
- if (dev->added)
- continue;
-
- dbg("%s %i", dev->name, dev->config_line);
- newtListboxAppendEntry(lbox, dev->name, (void*) dev);
- }
-
- newtPushHelpLine(" <Tab>/<Alt-Tab> between elements | Use <Enter> to select a device");
- snprintf(roottext, sizeof(roottext), "simple udev rule composer, version %s, (c) 2004 can't sleep team", UDEV_VERSION);
- roottext[sizeof(roottext)-1] = '\0';
- newtDrawRootText(0, 0, roottext);
-
- form = newtForm(NULL, NULL, 0);
- grid = newtCreateGrid(1, 2);
- grid2 = newtButtonBar("Select device", &run, "Quit", &quit, NULL);
- newtGridSetField(grid, 0, 0, NEWT_GRID_COMPONENT, lbox, 1, 0, 1, 0, NEWT_ANCHOR_TOP, 0);
- newtGridSetField(grid, 0, 1, NEWT_GRID_SUBGRID, grid2, 0, 1, 0, 0, NEWT_ANCHOR_TOP, 0);
- newtFormAddComponents(form, lbox, run, quit, NULL);
- newtGridWrappedWindow(grid,"Choose the device for which to compose a rule");
- newtGridFree(grid, 1);
-
- while (1) {
- struct attribute *attr;
- newtComponent ok, back, form2, answer2, text;
- newtGrid grid3, grid4;
- int i;
- int numitems;
- struct attribute **selattr;
- char text_rule[255];
-
- answer = newtRunForm(form);
- if (answer == quit)
- break;
-
- dev = (struct device *) newtListboxGetCurrent(lbox);
- if (dev == NULL)
- continue;
-
- if (dev->config_line > 0)
- snprintf(text_rule, sizeof(text_rule),
- "The device is handled by a rule in the file '%s', line %i.",
- dev->config_file, dev->config_line);
- else
- strcpy(text_rule, "The device was not handled by a rule.");
-
- strfieldcpy(path, sysfs_path);
- strfieldcat(path, dev->devpath);
- dbg("look at sysfs device '%s'", path);
- get_all_attributes(path);
-
- grid3 = newtCreateGrid(1, 3);
- form2 = newtForm(NULL, NULL, 0);
- grid4 = newtButtonBar("Ok", &ok, "Back", &back, NULL);
-
- lattr = newtListbox(-1, -1, 10, NEWT_FLAG_MULTIPLE | NEWT_FLAG_BORDER | NEWT_FLAG_RETURNEXIT);
- list_for_each_entry(attr, &attribute_list, list)
- newtListboxAddEntry(lattr, attr->key, (void *) attr);
-
- text = newtTextbox(-1, -1, 50, 2, NEWT_FLAG_WRAP);
- newtTextboxSetText(text, text_rule);
-
- newtGridSetField(grid3, 0, 0, NEWT_GRID_COMPONENT, lattr, 0, 0, 0, 1, 0, 0);
- newtGridSetField(grid3, 0, 1, NEWT_GRID_COMPONENT, text, 0, 0, 0, 1, 0, 0);
- newtGridSetField(grid3, 0, 2, NEWT_GRID_SUBGRID, grid4, 0, 1, 0, 0, NEWT_ANCHOR_TOP, 0);
-
- newtFormAddComponents(form2, text, lattr, ok, back, NULL);
- newtGridWrappedWindow(grid3, "Select one ore more attributes within one section with the space bar");
- newtGridFree(grid3, 1);
-
- while (1) {
- char rule[255];
- int onelevel;
- int skipped;
-
- answer2 = newtRunForm(form2);
- if (answer2 == back)
- break;
-
- selattr = (struct attribute **) newtListboxGetSelection(lattr, &numitems);
- if (selattr == NULL)
- continue;
-
- rule[0] = '\0';
- onelevel = -1;
- skipped = 0;
- for (i = 0; i < numitems; i++) {
- if (selattr[i]->key[0] == '\0')
- continue;
-
- if (onelevel != -1) {
- if (onelevel != selattr[i]->level) {
- skipped = 1;
- continue;
- }
- } else {
- onelevel = selattr[i]->level;
- }
-
- dbg("'%s'\n", selattr[i]->key);
- strfieldcat(rule, selattr[i]->key);
- strfieldcat(rule, ", ");
- }
- if (skipped) {
- newtWinMessage("error", "Ok", "Please select only attributes within one section");
- continue;
- }
-
- if (strlen(rule) > 200) {
- newtWinMessage("error", "Ok", "The line is too long, please select fewer attributes.");
- } else {
- if (rule[0] == '\0')
- continue;
-
- strfieldcat(rule, "NAME=\"%k\"");
- newtWinMessage("the rule to place in config file", "Ok", rule);
- }
- }
-
- newtPopWindow();
- }
-
- newtPopWindow();
- newtFormDestroy(form);
- newtFinished();
- return 0;
-}
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