*
* 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 <fcntl.h>
#include <ctype.h>
#include <unistd.h>
+#include <sys/stat.h>
+#include <dirent.h>
#include <errno.h>
#include "udev.h"
+#include "logging.h"
#include "namedev.h"
+LIST_HEAD(file_list);
+
static int add_config_dev(struct config_device *new_dev)
{
struct config_device *tmp_dev;
return 0;
}
-int 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;
-}
-
void dump_config_dev(struct config_device *dev)
{
- /*FIXME dump all sysfs's */
dbg_parse("name='%s', symlink='%s', bus='%s', place='%s', id='%s', "
"sysfs_file[0]='%s', sysfs_value[0]='%s', "
"kernel='%s', program='%s', result='%s'",
dump_perm_dev(dev);
}
+/* extract possible KEY{attr} or KEY_attr */
+static char *get_key_attribute(char *str)
+{
+ char *pos;
+ char *attr;
+
+ attr = strchr(str, '{');
+ if (attr != NULL) {
+ attr++;
+ pos = strchr(attr, '}');
+ if (pos == NULL) {
+ dbg("missing closing brace for format");
+ return NULL;
+ }
+ pos[0] = '\0';
+ dbg("attribute='%s'", attr);
+ return attr;
+ }
+
+ attr = strchr(str, '_');
+ if (attr != NULL) {
+ attr++;
+ dbg("attribute='%s'", attr);
+ return attr;
+ }
+
+ return NULL;
+}
-int namedev_init_rules(void)
+static int namedev_parse_rules(char *filename)
{
char line[255];
int lineno;
char *temp;
char *temp2;
char *temp3;
+ char *attr;
FILE *fd;
int program_given = 0;
int retval = 0;
struct config_device dev;
- fd = fopen(udev_rules_filename, "r");
+ fd = fopen(filename, "r");
if (fd != NULL) {
- dbg("reading '%s' as rules file", udev_rules_filename);
+ dbg("reading '%s' as rules file", filename);
} else {
- dbg("can't open '%s' as a rules file", udev_rules_filename);
+ dbg("can't open '%s' as a rules file", filename);
return -ENODEV;
}
/* get all known keys */
while (1) {
- retval = get_pair(&temp, &temp2, &temp3);
+ retval = parse_get_pair(&temp, &temp2, &temp3);
if (retval)
break;
++pair;
}
if (pair) {
- /* remove prepended 'SYSFS_' */
- strfieldcpy(pair->file, temp2 + sizeof(FIELD_SYSFS)-1);
+ attr = get_key_attribute(temp2 + sizeof(FIELD_SYSFS)-1);
+ if (attr == NULL) {
+ dbg("error parsing " FIELD_SYSFS " attribute");
+ continue;
+ }
+ strfieldcpy(pair->file, attr);
strfieldcpy(pair->value, temp3);
}
continue;
continue;
}
- if (strcasecmp(temp2, FIELD_NAME) == 0) {
+ if (strncasecmp(temp2, FIELD_NAME, sizeof(FIELD_NAME)-1) == 0) {
+ attr = get_key_attribute(temp2 + sizeof(FIELD_NAME)-1);
+ if (attr != NULL)
+ if (strcasecmp(attr, ATTR_PARTITIONS) == 0) {
+ dbg_parse("creation of partition nodes requested");
+ dev.partitions = PARTITIONS_COUNT;
+ }
strfieldcpy(dev.name, temp3);
continue;
}
/* simple plausibility check for given keys */
if ((dev.sysfs_pair[0].file[0] == '\0') ^
(dev.sysfs_pair[0].value[0] == '\0')) {
- dbg("inconsistency in SYSFS_ key");
+ dbg("inconsistency in " FIELD_SYSFS " key");
goto error;
}
if ((dev.result[0] != '\0') && (program_given == 0)) {
- dbg("RESULT is only useful when PROGRAM called in any rule before");
+ dbg(FIELD_RESULT " is only useful when "
+ FIELD_PROGRAM " is called in any rule before");
goto error;
}
+ dev.config_line = lineno;
+ strfieldcpy(dev.config_file, filename);
retval = add_config_dev(&dev);
if (retval) {
dbg("add_config_dev returned with error %d", retval);
continue;
error:
dbg("%s:%d:%d: parse error, rule skipped",
- udev_rules_filename, lineno, temp - line);
+ filename, lineno, temp - line);
}
}
exit:
return retval;
}
-int namedev_init_permissions(void)
+static int namedev_parse_permissions(char *filename)
{
char line[255];
char *temp;
int retval = 0;
struct perm_device dev;
- fd = fopen(udev_permissions_filename, "r");
+ fd = fopen(filename, "r");
if (fd != NULL) {
- dbg("reading '%s' as permissions file", udev_permissions_filename);
+ dbg("reading '%s' as permissions file", filename);
} else {
- dbg("can't open '%s' as permissions file", udev_permissions_filename);
+ dbg("can't open '%s' as permissions file", filename);
return -ENODEV;
}
dbg("cannot parse line '%s'", line);
continue;
}
- strncpy(dev.name, temp2, sizeof(dev.name));
+ strfieldcpy(dev.name, temp2);
temp2 = strsep(&temp, ":");
if (!temp2) {
dbg("cannot parse line '%s'", line);
continue;
}
- strncpy(dev.owner, temp2, sizeof(dev.owner));
+ strfieldcpy(dev.owner, temp2);
temp2 = strsep(&temp, ":");
if (!temp2) {
dbg("cannot parse line '%s'", line);
continue;
}
- strncpy(dev.group, temp2, sizeof(dev.owner));
+ strfieldcpy(dev.group, temp2);
if (!temp) {
dbg("cannot parse line: %s", line);
exit:
fclose(fd);
return retval;
-}
+}
+
+struct files {
+ struct list_head list;
+ char name[NAME_SIZE];
+};
+
+/* sort files in lexical order */
+static int file_list_insert(char *filename)
+{
+ struct files *loop_file;
+ struct files *new_file;
+ list_for_each_entry(loop_file, &file_list, list) {
+ if (strcmp(loop_file->name, filename) > 0) {
+ break;
+ }
+ }
+
+ new_file = malloc(sizeof(struct files));
+ if (new_file == NULL) {
+ dbg("error malloc");
+ return -ENOMEM;
+ }
+
+ strfieldcpy(new_file->name, filename);
+ list_add_tail(&new_file->list, &loop_file->list);
+ return 0;
+}
+
+/* calls function for file or every file found in directory */
+static int call_foreach_file(int parser (char *f) , char *filename, char *extension)
+{
+ struct dirent *ent;
+ DIR *dir;
+ char *ext;
+ char file[NAME_SIZE];
+ struct stat stats;
+ struct files *loop_file;
+ struct files *tmp_file;
+
+ /* look if we have a plain file or a directory to scan */
+ stat(filename, &stats);
+ if ((stats.st_mode & S_IFMT) != S_IFDIR)
+ return parser(filename);
+
+ /* sort matching filename into list */
+ dbg("open config as directory '%s'", filename);
+ dir = opendir(filename);
+ while (1) {
+ ent = readdir(dir);
+ if (ent == NULL || ent->d_name[0] == '\0')
+ break;
+
+ dbg("found file '%s'", ent->d_name);
+ ext = strrchr(ent->d_name, '.');
+ if (ext == NULL)
+ continue;
+
+ if (strcmp(ext, extension) == 0) {
+ dbg("put file in list '%s'", ent->d_name);
+ file_list_insert(ent->d_name);
+ }
+ }
+
+ /* parse every file in the list */
+ list_for_each_entry_safe(loop_file, tmp_file, &file_list, list) {
+ strfieldcpy(file, filename);
+ strfieldcat(file, loop_file->name);
+ parser(file);
+ list_del(&loop_file->list);
+ free(loop_file);
+ }
+
+ closedir(dir);
+ return 0;
+}
+int namedev_init_rules()
+{
+ return call_foreach_file(namedev_parse_rules, udev_rules_filename, RULEFILE_EXT);
+}
+
+int namedev_init_permissions()
+{
+ return call_foreach_file(namedev_parse_permissions, udev_permissions_filename, PERMFILE_EXT);
+}
~ianmdlvl / elogind.git / blobdiff