* Userspace devfs
*
* Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003-2005 Kay Sievers <kay.sievers@vrfy.org>
*
*
* This program is free software; you can redistribute it and/or modify it
#include <sys/stat.h>
#include <errno.h>
+#include "udev_libc_wrapper.h"
#include "udev.h"
-#include "udev_lib.h"
+#include "udev_utils.h"
#include "logging.h"
#include "namedev.h"
+LIST_HEAD(config_device_list);
static int add_config_dev(struct config_device *new_dev)
{
void dump_config_dev(struct config_device *dev)
{
- dbg_parse("name='%s', symlink='%s', bus='%s', place='%s', id='%s', "
+ dbg_parse("name='%s', symlink='%s', bus='%s', id='%s', "
"sysfs_file[0]='%s', sysfs_value[0]='%s', "
"kernel='%s', program='%s', result='%s'"
"owner='%s', group='%s', mode=%#o",
- dev->name, dev->symlink, dev->bus, dev->place, dev->id,
+ dev->name, dev->symlink, dev->bus, dev->id,
dev->sysfs_pair[0].file, dev->sysfs_pair[0].value,
dev->kernel, dev->program, dev->result,
dev->owner, dev->group, dev->mode);
dump_config_dev(dev);
}
-static int add_perm_dev(struct perm_device *new_dev)
-{
- struct perm_device *dev;
- struct perm_device *tmp_dev;
-
- /* update the values if we already have the device */
- list_for_each_entry(dev, &perm_device_list, node) {
- if (strcmp(new_dev->name, dev->name) != 0)
- continue;
-
- set_empty_perms(dev, new_dev->mode, new_dev->owner, new_dev->group);
- return 0;
- }
-
- /* not found, add new structure to the perm list */
- tmp_dev = malloc(sizeof(*tmp_dev));
- if (!tmp_dev)
- return -ENOMEM;
-
- memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
- list_add_tail(&tmp_dev->node, &perm_device_list);
- //dump_perm_dev(tmp_dev);
- return 0;
-}
-
-void dump_perm_dev(struct perm_device *dev)
-{
- dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
- dev->name, dev->owner, dev->group, dev->mode);
-}
-
-void dump_perm_dev_list(void)
-{
- struct perm_device *dev;
-
- list_for_each_entry(dev, &perm_device_list, node)
- dump_perm_dev(dev);
-}
-
/* extract possible KEY{attr} */
static char *get_key_attribute(char *str)
{
return NULL;
}
-static int namedev_parse_rules(const char *filename, void *data)
+static int namedev_parse(struct udevice *udev, const char *filename)
{
char line[LINE_SIZE];
char *bufline;
cur = 0;
lineno = 0;
while (cur < bufsize) {
+ unsigned int i, j;
+
count = buf_get_line(buf, bufsize, cur);
bufline = &buf[cur];
cur += count+1;
lineno++;
- if (count >= LINE_SIZE) {
- info("line too long, rule skipped %s, line %d",
- filename, lineno);
+ if (count >= sizeof(line)) {
+ info("line too long, rule skipped %s, line %d", filename, lineno);
continue;
}
if (bufline[0] == COMMENT_CHARACTER)
continue;
- strncpy(line, bufline, count);
- line[count] = '\0';
+ /* skip backslash and newline from multi line rules */
+ for (i = j = 0; i < count; i++) {
+ if (bufline[i] == '\\' && bufline[i+1] == '\n')
+ continue;
+
+ line[j++] = bufline[i];
+ }
+ line[j] = '\0';
dbg_parse("read '%s'", line);
/* get all known keys */
if (retval)
break;
- if (strcasecmp(temp2, FIELD_BUS) == 0) {
- strfieldcpy(dev.bus, temp3);
+ if (strcasecmp(temp2, FIELD_KERNEL) == 0) {
+ strlcpy(dev.kernel, temp3, sizeof(dev.kernel));
valid = 1;
continue;
}
- if (strcasecmp(temp2, FIELD_ID) == 0) {
- strfieldcpy(dev.id, temp3);
+ if (strcasecmp(temp2, FIELD_SUBSYSTEM) == 0) {
+ strlcpy(dev.subsystem, temp3, sizeof(dev.subsystem));
valid = 1;
continue;
}
- if (strcasecmp(temp2, FIELD_PLACE) == 0) {
- strfieldcpy(dev.place, temp3);
+ if (strcasecmp(temp2, FIELD_BUS) == 0) {
+ strlcpy(dev.bus, temp3, sizeof(dev.bus));
+ valid = 1;
+ continue;
+ }
+
+ if (strcasecmp(temp2, FIELD_ID) == 0) {
+ strlcpy(dev.id, temp3, sizeof(dev.id));
valid = 1;
continue;
}
dbg("error parsing " FIELD_SYSFS " attribute");
continue;
}
- strfieldcpy(pair->file, attr);
- strfieldcpy(pair->value, temp3);
+ strlcpy(pair->file, attr, sizeof(pair->file));
+ strlcpy(pair->value, temp3, sizeof(pair->value));
valid = 1;
}
continue;
}
- if (strcasecmp(temp2, FIELD_KERNEL) == 0) {
- strfieldcpy(dev.kernel, temp3);
- valid = 1;
- continue;
- }
-
- if (strcasecmp(temp2, FIELD_SUBSYSTEM) == 0) {
- strfieldcpy(dev.subsystem, temp3);
- valid = 1;
- continue;
- }
-
if (strcasecmp(temp2, FIELD_DRIVER) == 0) {
- strfieldcpy(dev.driver, temp3);
+ strlcpy(dev.driver, temp3, sizeof(dev.driver));
valid = 1;
continue;
}
if (strcasecmp(temp2, FIELD_PROGRAM) == 0) {
program_given = 1;
- strfieldcpy(dev.program, temp3);
+ strlcpy(dev.program, temp3, sizeof(dev.program));
valid = 1;
continue;
}
if (strcasecmp(temp2, FIELD_RESULT) == 0) {
- strfieldcpy(dev.result, temp3);
+ strlcpy(dev.result, temp3, sizeof(dev.result));
valid = 1;
continue;
}
if (strncasecmp(temp2, FIELD_NAME, sizeof(FIELD_NAME)-1) == 0) {
attr = get_key_attribute(temp2 + sizeof(FIELD_NAME)-1);
- if (attr != NULL && strcasecmp(attr, ATTR_PARTITIONS) == 0) {
+ /* FIXME: remove old style options and make OPTIONS= mandatory */
+ if (attr != NULL) {
+ if (strstr(attr, OPTION_PARTITIONS) != NULL) {
dbg_parse("creation of partition nodes requested");
- dev.partitions = PARTITIONS_COUNT;
+ dev.partitions = DEFAULT_PARTITIONS_COUNT;
}
- strfieldcpy(dev.name, temp3);
+ if (strstr(attr, OPTION_IGNORE_REMOVE) != NULL) {
+ dbg_parse("remove event should be ignored");
+ dev.ignore_remove = 1;
+ }
+ }
+ if (temp3[0] != '\0')
+ strlcpy(dev.name, temp3, sizeof(dev.name));
+ else
+ dev.ignore_device = 1;
valid = 1;
continue;
}
if (strcasecmp(temp2, FIELD_SYMLINK) == 0) {
- strfieldcpy(dev.symlink, temp3);
+ strlcpy(dev.symlink, temp3, sizeof(dev.symlink));
valid = 1;
continue;
}
if (strcasecmp(temp2, FIELD_OWNER) == 0) {
- strfieldcpy(dev.owner, temp3);
+ strlcpy(dev.owner, temp3, sizeof(dev.owner));
valid = 1;
continue;
}
if (strcasecmp(temp2, FIELD_GROUP) == 0) {
- strfieldcpy(dev.group, temp3);
+ strlcpy(dev.group, temp3, sizeof(dev.group));
valid = 1;
continue;
}
continue;
}
+ if (strcasecmp(temp2, FIELD_OPTIONS) == 0) {
+ if (strstr(temp3, OPTION_IGNORE_DEVICE) != NULL) {
+ dbg_parse("device should be ignored");
+ dev.ignore_device = 1;
+ }
+ if (strstr(temp3, OPTION_IGNORE_REMOVE) != NULL) {
+ dbg_parse("remove event should be ignored");
+ dev.ignore_remove = 1;
+ }
+ if (strstr(temp3, OPTION_PARTITIONS) != NULL) {
+ dbg_parse("creation of partition nodes requested");
+ dev.partitions = DEFAULT_PARTITIONS_COUNT;
+ }
+ valid = 1;
+ continue;
+ }
+
dbg("unknown type of field '%s'", temp2);
goto error;
}
}
dev.config_line = lineno;
- strfieldcpy(dev.config_file, filename);
+ strlcpy(dev.config_file, filename, sizeof(dev.config_file));
retval = add_config_dev(&dev);
if (retval) {
dbg("add_config_dev returned with error %d", retval);
continue;
error:
info("parse error %s, line %d:%d, rule skipped",
- filename, lineno, temp - line);
+ filename, lineno, (int) (temp - line));
}
}
return retval;
}
-static int namedev_parse_permissions(const char *filename, void *data)
+int namedev_init(void)
{
- char line[LINE_SIZE];
- char *bufline;
- char *temp;
- char *temp2;
- char *buf;
- size_t bufsize;
- size_t cur;
- size_t count;
- int retval = 0;
- struct perm_device dev;
- int lineno;
+ struct stat stats;
+ int retval;
- if (file_map(filename, &buf, &bufsize) == 0) {
- dbg("reading '%s' as permissions file", filename);
- } else {
- dbg("can't open '%s' as permissions file", filename);
+ if (stat(udev_rules_filename, &stats) != 0)
return -1;
- }
-
- /* loop through the whole file */
- cur = 0;
- lineno = 0;
- while (cur < bufsize) {
- count = buf_get_line(buf, bufsize, cur);
- bufline = &buf[cur];
- cur += count+1;
- lineno++;
-
- if (count >= LINE_SIZE) {
- info("line too long, rule skipped %s, line %d",
- filename, lineno);
- continue;
- }
-
- /* eat the whitespace */
- while ((count > 0) && isspace(bufline[0])) {
- bufline++;
- count--;
- }
- if (count == 0)
- continue;
-
- /* see if this is a comment */
- if (bufline[0] == COMMENT_CHARACTER)
- continue;
-
- strncpy(line, bufline, count);
- line[count] = '\0';
- dbg_parse("read '%s'", line);
-
- /* parse the line */
- memset(&dev, 0x00, sizeof(struct perm_device));
- temp = line;
-
- temp2 = strsep(&temp, ":");
- if (!temp2) {
- dbg("cannot parse line '%s'", line);
- continue;
- }
- strfieldcpy(dev.name, temp2);
-
- temp2 = strsep(&temp, ":");
- if (!temp2) {
- dbg("cannot parse line '%s'", line);
- continue;
- }
- strfieldcpy(dev.owner, temp2);
-
- temp2 = strsep(&temp, ":");
- if (!temp2) {
- dbg("cannot parse line '%s'", line);
- continue;
- }
- strfieldcpy(dev.group, temp2);
-
- if (!temp) {
- dbg("cannot parse line '%s'", line);
- continue;
- }
- dev.mode = strtol(temp, NULL, 8);
-
- dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
- dev.name, dev.owner, dev.group, dev.mode);
- retval = add_perm_dev(&dev);
- if (retval) {
- dbg("add_perm_dev returned with error %d", retval);
- goto exit;
- }
- }
+ if ((stats.st_mode & S_IFMT) != S_IFDIR)
+ retval = namedev_parse(NULL, udev_rules_filename);
+ else
+ retval = call_foreach_file(namedev_parse, NULL, udev_rules_filename, RULEFILE_SUFFIX);
-exit:
- file_unmap(buf, bufsize);
return retval;
}
-int namedev_init_rules(void)
+void namedev_close(void)
{
- struct stat stats;
+ struct config_device *dev;
+ struct config_device *temp_dev;
- stat(udev_rules_filename, &stats);
- if ((stats.st_mode & S_IFMT) != S_IFDIR)
- return namedev_parse_rules(udev_rules_filename, NULL);
- else
- return call_foreach_file(namedev_parse_rules, udev_rules_filename,
- RULEFILE_SUFFIX, NULL);
+ list_for_each_entry_safe(dev, temp_dev, &config_device_list, node) {
+ list_del(&dev->node);
+ free(dev);
+ }
}
-int namedev_init_permissions(void)
-{
- struct stat stats;
-
- stat(udev_permissions_filename, &stats);
- if ((stats.st_mode & S_IFMT) != S_IFDIR)
- return namedev_parse_permissions(udev_permissions_filename, NULL);
- else
- return call_foreach_file(namedev_parse_permissions, udev_permissions_filename,
- PERMFILE_SUFFIX, NULL);
-}
~ianmdlvl / elogind.git / blobdiff