*
* Userspace devfs
*
- * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
*
*
* This program is free software; you can redistribute it and/or modify it
#include <errno.h>
#include <ctype.h>
+#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
+#include "udev_lib.h"
#include "udev_version.h"
+#include "logging.h"
#include "namedev.h"
-#include "libsysfs/libsysfs.h"
/* global variables */
char sysfs_path[SYSFS_PATH_MAX];
-char udev_config_dir[PATH_MAX];
char udev_root[PATH_MAX];
char udev_db_filename[PATH_MAX+NAME_MAX];
-char udev_permission_filename[PATH_MAX+NAME_MAX];
+char udev_permissions_filename[PATH_MAX+NAME_MAX];
char udev_rules_filename[PATH_MAX+NAME_MAX];
char udev_config_filename[PATH_MAX+NAME_MAX];
-char default_mode_str[NAME_MAX];
+char default_mode_str[MODE_SIZE];
+char default_owner_str[OWNER_SIZE];
+char default_group_str[GROUP_SIZE];
+int udev_log;
+int udev_dev_d;
+static int string_is_true(char *str)
+{
+ if (strcasecmp(str, "true") == 0)
+ return 1;
+ if (strcasecmp(str, "yes") == 0)
+ return 1;
+ if (strcasecmp(str, "1") == 0)
+ return 1;
+ return 0;
+}
+
static void init_variables(void)
{
+ char *env;
+
+ /* fill up the defaults.
+ * If any config values are specified, they will
+ * override these values. */
strfieldcpy(udev_root, UDEV_ROOT);
- strfieldcpy(udev_config_dir, UDEV_CONFIG_DIR);
+ strfieldcpy(udev_db_filename, UDEV_DB);
+ strfieldcpy(udev_config_filename, UDEV_CONFIG_FILE);
+ strfieldcpy(udev_rules_filename, UDEV_RULES_FILE);
+ strfieldcpy(udev_permissions_filename, UDEV_PERMISSION_FILE);
+ udev_log = string_is_true(UDEV_LOG_DEFAULT);
+
+ udev_dev_d = 1;
+ env = getenv("UDEV_NO_DEVD");
+ if (env && string_is_true(env))
+ udev_dev_d = 0;
}
-#define set_var(_name, _var) \
- if (strcasecmp(variable, _name) == 0) { \
- dbg_parse("%s = '%s'", _name, value); \
- strncpy(_var, value, sizeof(_var)); \
- }
+int parse_get_pair(char **orig_string, char **left, char **right)
+{
+ char *temp;
+ char *string = *orig_string;
+
+ if (!string)
+ return -ENODEV;
+
+ /* eat any whitespace */
+ while (isspace(*string) || *string == ',')
+ ++string;
+
+ /* split based on '=' */
+ temp = strsep(&string, "=");
+ *left = temp;
+ if (!string)
+ return -ENODEV;
+
+ /* take the right side and strip off the '"' */
+ while (isspace(*string))
+ ++string;
+ if (*string == '"')
+ ++string;
+ else
+ return -ENODEV;
+
+ temp = strsep(&string, "\"");
+ if (!string || *temp == '\0')
+ return -ENODEV;
+ *right = temp;
+ *orig_string = string;
+
+ return 0;
+}
static int parse_config_file(void)
{
- char line[255];
+ char line[LINE_SIZE];
+ char *bufline;
char *temp;
char *variable;
char *value;
- FILE *fd;
- int lineno = 0;
+ char *buf;
+ size_t bufsize;
+ size_t cur;
+ size_t count;
+ int lineno;
int retval = 0;
-
- fd = fopen(udev_config_filename, "r");
- if (fd != NULL) {
+
+ if (file_map(udev_config_filename, &buf, &bufsize) == 0) {
dbg("reading '%s' as config file", udev_config_filename);
} else {
dbg("can't open '%s' as config file", udev_config_filename);
}
/* loop through the whole file */
- while (1) {
- /* get a line */
- temp = fgets(line, sizeof(line), fd);
- if (temp == NULL)
- goto exit;
+ lineno = 0;
+ cur = 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, conf line skipped %s, line %d",
+ udev_config_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';
+ temp = line;
dbg_parse("read '%s'", temp);
- /* eat the whitespace at the beginning of the line */
- while (isspace(*temp))
- ++temp;
+ retval = parse_get_pair(&temp, &variable, &value);
+ if (retval != 0)
+ info("%s:%d:%Zd: error parsing '%s'",
+ udev_config_filename, lineno, temp-line, temp);
+
+ dbg_parse("variable='%s', value='%s'", variable, value);
- /* empty line? */
- if (*temp == 0x00)
+ if (strcasecmp(variable, "udev_root") == 0) {
+ strfieldcpy(udev_root, value);
+ leading_slash(udev_root);
continue;
+ }
- /* see if this is a comment */
- if (*temp == COMMENT_CHARACTER)
+ if (strcasecmp(variable, "udev_db") == 0) {
+ strfieldcpy(udev_db_filename, value);
+ continue;
+ }
+
+ if (strcasecmp(variable, "udev_rules") == 0) {
+ strfieldcpy(udev_rules_filename, value);
+ no_leading_slash(udev_rules_filename);
+ continue;
+ }
+
+ if (strcasecmp(variable, "udev_permissions") == 0) {
+ strfieldcpy(udev_permissions_filename, value);
+ no_leading_slash(udev_permissions_filename);
+ continue;
+ }
+
+ if (strcasecmp(variable, "default_mode") == 0) {
+ strfieldcpy(default_mode_str, value);
continue;
+ }
- retval = get_pair(&temp, &variable, &value);
- if (retval)
- break;
-
- dbg_parse("variable = '%s', value = '%s'", variable, value);
-
- set_var("udev_root", udev_root);
- set_var("udev_db", udev_db_filename);
- set_var("udev_rules", udev_rules_filename);
- set_var("udev_permissions", udev_permission_filename);
- set_var("default_mode", default_mode_str);
+ if (strcasecmp(variable, "default_owner") == 0) {
+ strfieldcpy(default_owner_str, value);
+ continue;
+ }
+
+ if (strcasecmp(variable, "default_group") == 0) {
+ strfieldcpy(default_group_str, value);
+ continue;
+ }
+
+ if (strcasecmp(variable, "udev_log") == 0) {
+ udev_log = string_is_true(value);
+ continue;
+ }
+
+ info("%s:%d:%Zd: unknown key '%s'",
+ udev_config_filename, lineno, temp-line, temp);
}
- dbg_parse("%s:%d:%Zd: error parsing '%s'", udev_config_filename,
- lineno, temp - line, temp);
-exit:
- fclose(fd);
+
+ file_unmap(buf, bufsize);
return retval;
}
static void get_dirs(void)
{
char *temp;
- char *udev_db = UDEV_DB;
- char *udev_config = UDEV_CONFIG_FILE;
- char *udev_rules = UDEV_RULES_FILE;
- char *udev_permission = UDEV_PERMISSION_FILE;
int retval;
retval = sysfs_get_mnt_path(sysfs_path, SYSFS_PATH_MAX);
dbg("sysfs_get_mnt_path failed");
/* see if we should try to override any of the default values */
- temp = getenv("UDEV_TEST");
- if (temp != NULL) {
- /* hm testing is happening, use the specified values, if they are present */
+ if (getenv("UDEV_TEST") != NULL) {
temp = getenv("SYSFS_PATH");
- if (temp)
+ if (temp != NULL) {
strfieldcpy(sysfs_path, temp);
- temp = getenv("UDEV_CONFIG_DIR");
- if (temp)
- strfieldcpy(udev_config_dir, temp);
- temp = getenv("UDEV_ROOT");
- if (temp)
- strfieldcpy(udev_root, temp);
- temp = getenv("UDEV_DB");
- if (temp)
- udev_db = temp;
+ no_leading_slash(sysfs_path);
+ }
+
temp = getenv("UDEV_CONFIG_FILE");
- if (temp)
- udev_config = temp;
- temp = getenv("UDEV_RULES_FILE");
- if (temp)
- udev_rules = temp;
- temp = getenv("UDEV_PERMISSION_FILE");
- if (temp)
- udev_permission = temp;
+ if (temp != NULL)
+ strfieldcpy(udev_config_filename, temp);
}
- dbg("sysfs_path='%s'", sysfs_path);
-
- strncpy(udev_db_filename, udev_root, sizeof(udev_db_filename));
- strncat(udev_db_filename, udev_db, sizeof(udev_db_filename));
-
- strncpy(udev_config_filename, udev_config_dir, sizeof(udev_config_filename));
- strncat(udev_config_filename, udev_config, sizeof(udev_config_filename));
-
- strncpy(udev_rules_filename, udev_config_dir, sizeof(udev_permission_filename));
- strncat(udev_rules_filename, udev_rules, sizeof(udev_permission_filename));
-
- strncpy(udev_permission_filename, udev_config_dir, sizeof(udev_permission_filename));
- strncat(udev_permission_filename, udev_permission, sizeof(udev_permission_filename));
+ dbg("sysfs_path='%s'", sysfs_path);
dbg_parse("udev_root = %s", udev_root);
dbg_parse("udev_config_filename = %s", udev_config_filename);
dbg_parse("udev_db_filename = %s", udev_db_filename);
dbg_parse("udev_rules_filename = %s", udev_rules_filename);
- dbg_parse("udev_permission_filename = %s", udev_permission_filename);
+ dbg_parse("udev_permissions_filename = %s", udev_permissions_filename);
+ dbg_parse("udev_log = %d", udev_log);
+
parse_config_file();
- dbg_parse("udev_root = %s", udev_root);
- dbg_parse("udev_config_filename = %s", udev_config_filename);
- dbg_parse("udev_db_filename = %s", udev_db_filename);
- dbg_parse("udev_rules_filename = %s", udev_rules_filename);
- dbg_parse("udev_permission_filename = %s", udev_permission_filename);
+ dbg("udev_root = %s", udev_root);
+ dbg("udev_config_filename = %s", udev_config_filename);
+ dbg("udev_db_filename = %s", udev_db_filename);
+ dbg("udev_rules_filename = %s", udev_rules_filename);
+ dbg("udev_permissions_filename = %s", udev_permissions_filename);
+ dbg("udev_log_str = %d", udev_log);
}
void udev_init_config(void)
init_variables();
get_dirs();
}
-
-
~ianmdlvl / elogind.git / blobdiff