#include <stdlib.h>
#include <string.h>
#include <stdio.h>
-#include <fcntl.h>
#include <ctype.h>
#include <unistd.h>
+#include <sys/stat.h>
#include <errno.h>
#include "udev.h"
+#include "udev_lib.h"
#include "logging.h"
#include "namedev.h"
+
static int add_config_dev(struct config_device *new_dev)
{
struct config_device *tmp_dev;
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'",
+ "owner='%s', group='%s', mode=%#o",
dev->name, dev->symlink, dev->bus, dev->place, dev->id,
dev->sysfs_pair[0].file, dev->sysfs_pair[0].value,
- dev->kernel, dev->program, dev->result);
+ dev->kernel, dev->program, dev->result,
+ dev->owner, dev->group, dev->mode);
}
void dump_config_dev_list(void)
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",
dump_perm_dev(dev);
}
-int namedev_init_rules(void)
+/* 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;
+}
+
+static int namedev_parse_rules(char *filename)
{
char line[255];
int lineno;
char *temp;
char *temp2;
char *temp3;
- FILE *fd;
+ char *attr;
+ char *buf;
+ size_t bufsize;
+ size_t cur;
+ size_t count;
int program_given = 0;
int retval = 0;
struct config_device dev;
- fd = fopen(udev_rules_filename, "r");
- if (fd != NULL) {
- dbg("reading '%s' as rules file", udev_rules_filename);
+ if (file_map(filename, &buf, &bufsize) == 0) {
+ dbg("reading '%s' as rules file", filename);
} else {
- dbg("can't open '%s' as a rules file", udev_rules_filename);
- return -ENODEV;
+ dbg("can't open '%s' as rules file", filename);
+ return -1;
}
/* loop through the whole file */
+ cur = 0;
lineno = 0;
while (1) {
- /* get a line */
- temp = fgets(line, sizeof(line), fd);
- if (temp == NULL)
- goto exit;
+ count = buf_get_line(buf, bufsize, cur);
+
+ strncpy(line, buf + cur, count);
+ line[count] = '\0';
+ temp = line;
lineno++;
+
+ cur += count+1;
+ if (cur > bufsize)
+ break;
+
dbg_parse("read '%s'", temp);
/* eat the whitespace */
++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;
}
continue;
}
+ if (strcasecmp(temp2, FIELD_OWNER) == 0) {
+ strfieldcpy(dev.owner, temp3);
+ continue;
+ }
+
+ if (strcasecmp(temp2, FIELD_GROUP) == 0) {
+ strfieldcpy(dev.group, temp3);
+ continue;
+ }
+
+ if (strcasecmp(temp2, FIELD_MODE) == 0) {
+ dev.mode = strtol(temp3, NULL, 8);
+ continue;
+ }
+
dbg("unknown type of field '%s'", temp2);
- dbg("You might be using a rules file in the old format, please fix.");
goto error;
}
- /* simple plausibility check for given keys */
+ /* simple plausibility checks 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:
- fclose(fd);
+
+ file_unmap(buf, bufsize);
return retval;
}
-int namedev_init_permissions(void)
+static int namedev_parse_permissions(char *filename)
{
char line[255];
char *temp;
char *temp2;
- FILE *fd;
+ char *buf;
+ size_t bufsize;
+ size_t cur;
+ size_t count;
int retval = 0;
struct perm_device dev;
- fd = fopen(udev_permissions_filename, "r");
- if (fd != NULL) {
- dbg("reading '%s' as permissions file", udev_permissions_filename);
+ if (file_map(filename, &buf, &bufsize) == 0) {
+ dbg("reading '%s' as permissions file", filename);
} else {
- dbg("can't open '%s' as permissions file", udev_permissions_filename);
- return -ENODEV;
+ dbg("can't open '%s' as permissions file", filename);
+ return -1;
}
/* loop through the whole file */
+ cur = 0;
while (1) {
- temp = fgets(line, sizeof(line), fd);
- if (temp == NULL)
+ count = buf_get_line(buf, bufsize, cur);
+
+ strncpy(line, buf + cur, count);
+ line[count] = '\0';
+ temp = line;
+
+ cur += count+1;
+ if (cur > bufsize)
break;
dbg_parse("read '%s'", temp);
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.group));
+ strfieldcpy(dev.group, temp2);
if (!temp) {
- dbg("cannot parse line: %s", line);
+ 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);
+ dev.name, dev.owner, dev.group, dev.mode);
+
retval = add_perm_dev(&dev);
if (retval) {
dbg("add_perm_dev returned with error %d", retval);
}
exit:
- fclose(fd);
+ file_unmap(buf, bufsize);
return retval;
}
+int namedev_init_rules()
+{
+ struct stat stats;
+
+ stat(udev_rules_filename, &stats);
+ if ((stats.st_mode & S_IFMT) != S_IFDIR)
+ return namedev_parse_rules(udev_rules_filename);
+ else
+ return call_foreach_file(namedev_parse_rules,
+ udev_rules_filename, RULEFILE_SUFFIX);
+}
+
+int namedev_init_permissions()
+{
+ struct stat stats;
+
+ stat(udev_permissions_filename, &stats);
+ if ((stats.st_mode & S_IFMT) != S_IFDIR)
+ return namedev_parse_permissions(udev_permissions_filename);
+ else
+ return call_foreach_file(namedev_parse_permissions,
+ udev_permissions_filename, PERMFILE_SUFFIX);
+}
~ianmdlvl / elogind.git / blobdiff