*
* 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
*
*/
-/* define this to enable parsing debugging */
+#ifdef DEBUG
+/* define this to enable parsing debugging also */
/* #define DEBUG_PARSER */
+#endif
#include <stddef.h>
#include <stdlib.h>
#include <errno.h>
#include "udev.h"
+#include "logging.h"
#include "namedev.h"
-int get_pair(char **orig_string, char **left, char **right)
+static int add_config_dev(struct config_device *new_dev)
{
- 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;
-
+ struct config_device *tmp_dev;
+
+ tmp_dev = malloc(sizeof(*tmp_dev));
+ if (tmp_dev == NULL)
+ return -ENOMEM;
+ memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
+ list_add_tail(&tmp_dev->node, &config_device_list);
+ //dump_config_dev(tmp_dev);
return 0;
}
void dump_config_dev(struct config_device *dev)
{
- switch (dev->type) {
- case KERNEL_NAME:
- dbg_parse("KERNEL name='%s'", dev->name);
- break;
- case LABEL:
- dbg_parse("LABEL name='%s', bus='%s', sysfs_file='%s', sysfs_value='%s'",
- dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value);
- break;
- case NUMBER:
- dbg_parse("NUMBER name='%s', bus='%s', id='%s'",
- dev->name, dev->bus, dev->id);
- break;
- case TOPOLOGY:
- dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s'",
- dev->name, dev->bus, dev->place);
- break;
- case REPLACE:
- dbg_parse("REPLACE name=%s, kernel_name=%s",
- dev->name, dev->kernel_name);
- break;
- case CALLOUT:
- dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s'",
- dev->name, dev->bus, dev->exec_program, dev->id);
- break;
- default:
- dbg_parse("unknown type of method");
- }
+ /*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'",
+ 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);
}
void dump_config_dev_list(void)
{
- struct list_head *tmp;
+ struct config_device *dev;
- list_for_each(tmp, &config_device_list) {
- struct config_device *dev = list_entry(tmp, struct config_device, node);
+ list_for_each_entry(dev, &config_device_list, node)
dump_config_dev(dev);
- }
}
void dump_perm_dev(struct perm_device *dev)
void dump_perm_dev_list(void)
{
- struct list_head *tmp;
+ struct perm_device *dev;
- list_for_each(tmp, &perm_device_list) {
- struct perm_device *dev = list_entry(tmp, struct perm_device, node);
+ list_for_each_entry(dev, &perm_device_list, node)
dump_perm_dev(dev);
- }
}
-
int namedev_init_rules(void)
{
char line[255];
char *temp2;
char *temp3;
FILE *fd;
+ int program_given = 0;
int retval = 0;
struct config_device dev;
lineno++;
dbg_parse("read '%s'", temp);
+ /* eat the whitespace */
+ while (isspace(*temp))
+ ++temp;
+
/* empty line? */
- if (*temp == 0x00)
+ if ((*temp == '\0') || (*temp == '\n'))
continue;
/* see if this is a comment */
if (*temp == COMMENT_CHARACTER)
continue;
- /* eat the whitespace */
- while (isspace(*temp))
- ++temp;
-
memset(&dev, 0x00, sizeof(struct config_device));
- /* get the method */
- temp2 = strsep(&temp, ",");
-
- if (strcasecmp(temp2, TYPE_LABEL) == 0) {
- dev.type = LABEL;
- goto keys;
- }
-
- if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
- dev.type = NUMBER;
- goto keys;
- }
-
- if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
- dev.type = TOPOLOGY;
- goto keys;
- }
-
- if (strcasecmp(temp2, TYPE_REPLACE) == 0) {
- dev.type = REPLACE;
- goto keys;
- }
-
- if (strcasecmp(temp2, TYPE_CALLOUT) == 0) {
- dev.type = CALLOUT;
- goto keys;
- }
-
- dbg_parse("unknown type of method '%s'", temp2);
- goto error;
-keys:
/* get all known keys */
while (1) {
- retval = get_pair(&temp, &temp2, &temp3);
+ retval = parse_get_pair(&temp, &temp2, &temp3);
if (retval)
break;
}
if (strncasecmp(temp2, FIELD_SYSFS, sizeof(FIELD_SYSFS)-1) == 0) {
- /* remove prepended 'SYSFS_' */
- strfieldcpy(dev.sysfs_file, temp2 + sizeof(FIELD_SYSFS)-1);
- strfieldcpy(dev.sysfs_value, temp3);
+ struct sysfs_pair *pair = &dev.sysfs_pair[0];
+ int sysfs_pair_num = 0;
+
+ /* find first unused pair */
+ while (pair->file[0] != '\0') {
+ ++sysfs_pair_num;
+ if (sysfs_pair_num >= MAX_SYSFS_PAIRS) {
+ pair = NULL;
+ break;
+ }
+ ++pair;
+ }
+ if (pair) {
+ /* remove prepended 'SYSFS_' */
+ strfieldcpy(pair->file, temp2 + sizeof(FIELD_SYSFS)-1);
+ strfieldcpy(pair->value, temp3);
+ }
continue;
}
if (strcasecmp(temp2, FIELD_KERNEL) == 0) {
- strfieldcpy(dev.kernel_name, temp3);
+ strfieldcpy(dev.kernel, temp3);
continue;
}
if (strcasecmp(temp2, FIELD_PROGRAM) == 0) {
- strfieldcpy(dev.exec_program, temp3);
+ program_given = 1;
+ strfieldcpy(dev.program, temp3);
+ continue;
+ }
+
+ if (strcasecmp(temp2, FIELD_RESULT) == 0) {
+ strfieldcpy(dev.result, temp3);
continue;
}
continue;
}
- dbg_parse("unknown type of field '%s'", temp2);
+ 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 */
+ if ((dev.sysfs_pair[0].file[0] == '\0') ^
+ (dev.sysfs_pair[0].value[0] == '\0')) {
+ dbg("inconsistency in SYSFS_ key");
+ goto error;
}
- /* check presence of keys according to method type */
- switch (dev.type) {
- case LABEL:
- dbg_parse("LABEL name='%s', bus='%s', "
- "sysfs_file='%s', sysfs_value='%s', symlink='%s'",
- dev.name, dev.bus, dev.sysfs_file,
- dev.sysfs_value, dev.symlink);
- if ((*dev.name == '\0') ||
- (*dev.bus == '\0') ||
- (*dev.sysfs_file == '\0') ||
- (*dev.sysfs_value == '\0'))
- goto error;
- break;
- case NUMBER:
- dbg_parse("NUMBER name='%s', bus='%s', id='%s', symlink='%s'",
- dev.name, dev.bus, dev.id, dev.symlink);
- if ((*dev.name == '\0') ||
- (*dev.bus == '\0') ||
- (*dev.id == '\0'))
- goto error;
- break;
- case TOPOLOGY:
- dbg_parse("TOPOLOGY name='%s', bus='%s', "
- "place='%s', symlink='%s'",
- dev.name, dev.bus, dev.place, dev.symlink);
- if ((*dev.name == '\0') ||
- (*dev.bus == '\0') ||
- (*dev.place == '\0'))
- goto error;
- break;
- case REPLACE:
- dbg_parse("REPLACE name='%s', kernel_name='%s', symlink='%s'",
- dev.name, dev.kernel_name, dev.symlink);
- if ((*dev.name == '\0') ||
- (*dev.kernel_name == '\0'))
- goto error;
- break;
- case CALLOUT:
- dbg_parse("CALLOUT name='%s', bus='%s', program='%s', "
- "id='%s', symlink='%s'",
- dev.name, dev.bus, dev.exec_program,
- dev.id, dev.symlink);
- if ((*dev.name == '\0') ||
- (*dev.bus == '\0') ||
- (*dev.id == '\0') ||
- (*dev.exec_program == '\0'))
- goto error;
- break;
- default:
- dbg_parse("xxx default method");
+ if ((dev.result[0] != '\0') && (program_given == 0)) {
+ dbg("RESULT is only useful when PROGRAM called in any rule before");
goto error;
}
+ dev.config_line = lineno;
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);
}
}
-error:
- dbg_parse("%s:%d:%Zd: field missing or parse error", udev_rules_filename,
- lineno, temp - line);
exit:
fclose(fd);
return retval;
++temp;
/* empty line? */
- if (*temp == 0x00)
+ if ((*temp == '\0') || (*temp == '\n'))
continue;
/* see if this is a comment */
dbg("cannot parse line '%s'", line);
continue;
}
- strncpy(dev.group, temp2, sizeof(dev.owner));
+ strncpy(dev.group, temp2, sizeof(dev.group));
if (!temp) {
dbg("cannot parse line: %s", line);
exit:
fclose(fd);
return retval;
-}
-
+}
~ianmdlvl / elogind.git / blobdiff