*
*/
+/* define this to enable parsing debugging */
+/* #define DEBUG_PARSER */
+
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
+#include <sys/wait.h>
#include "list.h"
#include "udev.h"
#include "udev_version.h"
#include "namedev.h"
#include "libsysfs/libsysfs.h"
+#include "klibc_fixups.h"
#define TYPE_LABEL "LABEL"
#define TYPE_NUMBER "NUMBER"
#define TYPE_TOPOLOGY "TOPOLOGY"
#define TYPE_REPLACE "REPLACE"
+#define TYPE_CALLOUT "CALLOUT"
+#define CALLOUT_MAXARG 8
static LIST_HEAD(config_device_list);
+/* s2 may end with '*' to match everything */
+static int strncmp_wildcard(char *s1, char *s2, int max)
+{
+ int len = strlen(s2);
+ if (len > max)
+ len = max;
+ if (s2[len-1] == '*')
+ len--;
+ else
+ len = max;
+ return strncmp(s1, s2, len);
+}
+
static void dump_dev(struct config_device *dev)
{
switch (dev->type) {
case KERNEL_NAME:
- dbg("KERNEL name ='%s'"
- " owner = '%s', group = '%s', mode = '%#o'",
- dev->attr.name,
- dev->attr.owner, dev->attr.group, dev->attr.mode);
+ dbg_parse("KERNEL name='%s' ,"
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->owner, dev->group, dev->mode);
break;
case LABEL:
- dbg("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'"
- " owner = '%s', group = '%s', mode = '%#o'",
- dev->attr.name, dev->bus, dev->sysfs_file, dev->sysfs_value,
- dev->attr.owner, dev->attr.group, dev->attr.mode);
+ dbg_parse("LABEL name='%s', bus='%s', sysfs_file='%s', sysfs_value='%s', "
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value,
+ dev->owner, dev->group, dev->mode);
break;
case NUMBER:
- dbg("NUMBER name = '%s', bus = '%s', id = '%s'"
- " owner = '%s', group = '%s', mode = '%#o'",
- dev->attr.name, dev->bus, dev->id,
- dev->attr.owner, dev->attr.group, dev->attr.mode);
+ dbg_parse("NUMBER name='%s', bus='%s', id='%s', "
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->bus, dev->id,
+ dev->owner, dev->group, dev->mode);
break;
case TOPOLOGY:
- dbg("TOPOLOGY name = '%s', bus = '%s', place = '%s'"
- " owner = '%s', group = '%s', mode = '%#o'",
- dev->attr.name, dev->bus, dev->place,
- dev->attr.owner, dev->attr.group, dev->attr.mode);
+ dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s', "
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->bus, dev->place,
+ dev->owner, dev->group, dev->mode);
break;
case REPLACE:
- dbg("REPLACE name = %s, kernel_name = %s"
- " owner = '%s', group = '%s', mode = '%#o'",
- dev->attr.name, dev->kernel_name,
- dev->attr.owner, dev->attr.group, dev->attr.mode);
+ dbg_parse("REPLACE name=%s, kernel_name=%s, "
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->kernel_name,
+ dev->owner, dev->group, dev->mode);
+ break;
+ case CALLOUT:
+ dbg_parse("CALLOUT name='%s', bus='%s', program='%s', id='%s', "
+ "owner='%s', group='%s', mode=%#o",
+ dev->name, dev->bus, dev->exec_program, dev->id,
+ dev->owner, dev->group, dev->mode);
break;
default:
- dbg("Unknown type of device!");
+ dbg_parse("unknown type of method");
}
}
struct list_head *tmp;
struct config_device *tmp_dev;
- /* loop through the whole list of devices to see if we already have
- * this one... */
+ /* update the values if we already have the device */
list_for_each(tmp, &config_device_list) {
struct config_device *dev = list_entry(tmp, struct config_device, node);
- if (strcmp(dev->attr.name, new_dev->attr.name) == 0) {
- /* the same, copy the new info into this structure */
- copy_var(dev, new_dev, type);
- copy_var(dev, new_dev, attr.mode);
- copy_string(dev, new_dev, bus);
- copy_string(dev, new_dev, sysfs_file);
- copy_string(dev, new_dev, sysfs_value);
- copy_string(dev, new_dev, id);
- copy_string(dev, new_dev, place);
- copy_string(dev, new_dev, kernel_name);
- copy_string(dev, new_dev, attr.owner);
- copy_string(dev, new_dev, attr.group);
- return 0;
- }
+ if (strncmp_wildcard(dev->name, new_dev->name, sizeof(dev->name)))
+ continue;
+ copy_var(dev, new_dev, type);
+ copy_var(dev, new_dev, mode);
+ copy_string(dev, new_dev, bus);
+ copy_string(dev, new_dev, sysfs_file);
+ copy_string(dev, new_dev, sysfs_value);
+ copy_string(dev, new_dev, id);
+ copy_string(dev, new_dev, place);
+ copy_string(dev, new_dev, kernel_name);
+ copy_string(dev, new_dev, owner);
+ copy_string(dev, new_dev, group);
+ return 0;
}
- /* not found, lets create a new structure, and add it to the list */
+ /* not found, add new structure to the device list */
tmp_dev = malloc(sizeof(*tmp_dev));
if (!tmp_dev)
return -ENOMEM;
dump_dev(dev);
}
}
-
-static int get_value(const char *left, char **orig_string, char **ret_string)
-{
- char *temp;
- char *string = *orig_string;
-
- /* eat any whitespace */
- while (isspace(*string))
- ++string;
-
- /* split based on '=' */
- temp = strsep(&string, "=");
- if (strcasecmp(temp, left) == 0) {
- /* got it, now strip off the '"' */
- while (isspace(*string))
- ++string;
- if (*string == '"')
- ++string;
- temp = strsep(&string, "\"");
- *ret_string = temp;
- *orig_string = string;
- return 0;
- }
- return -ENODEV;
-}
static 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;
/* 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 get_value(const char *left, char **orig_string, char **ret_string)
+{
+ int retval;
+ char *left_string;
+
+ retval = get_pair(orig_string, &left_string, ret_string);
+ if (retval)
+ return retval;
+ if (strcasecmp(left_string, left) != 0)
+ return -ENODEV;
+ return 0;
+}
+
static int namedev_init_config(void)
{
- char filename[255];
char line[255];
+ int lineno;
char *temp;
char *temp2;
char *temp3;
int retval = 0;
struct config_device dev;
- strcpy(filename, NAMEDEV_CONFIG_ROOT NAMEDEV_CONFIG_FILE);
- dbg("opening %s to read as permissions config", filename);
- fd = fopen(filename, "r");
+ dbg("opening %s to read as config", udev_config_filename);
+ fd = fopen(udev_config_filename, "r");
if (fd == NULL) {
- dbg("Can't open %s", filename);
+ dbg("can't open %s", udev_config_filename);
return -ENODEV;
}
/* loop through the whole file */
+ lineno = 0;
while (1) {
/* get a line */
temp = fgets(line, sizeof(line), fd);
if (temp == NULL)
- break;
+ goto exit;
+ lineno++;
- dbg("read %s", temp);
+ dbg_parse("read %s", temp);
/* eat the whitespace at the beginning of the line */
while (isspace(*temp))
++temp;
- /* no more line? */
+ /* empty line? */
if (*temp == 0x00)
continue;
/* BUS="bus" */
retval = get_value("BUS", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.bus, temp3);
+ break;
+ strfieldcpy(dev.bus, temp3);
/* file="value" */
temp2 = strsep(&temp, ",");
retval = get_pair(&temp, &temp2, &temp3);
if (retval)
- continue;
- strcpy(dev.sysfs_file, temp2);
- strcpy(dev.sysfs_value, temp3);
+ break;
+ strfieldcpy(dev.sysfs_file, temp2);
+ strfieldcpy(dev.sysfs_value, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.attr.name, temp3);
+ break;
+ strfieldcpy(dev.name, temp3);
- dbg("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'", dev.attr.name, dev.bus, dev.sysfs_file, dev.sysfs_value);
+ dbg_parse("LABEL name='%s', bus='%s', "
+ "sysfs_file='%s', sysfs_value='%s'",
+ dev.name, dev.bus, dev.sysfs_file,
+ dev.sysfs_value);
}
if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
/* BUS="bus" */
retval = get_value("BUS", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.bus, temp3);
+ break;
+ strfieldcpy(dev.bus, temp3);
/* ID="id" */
temp2 = strsep(&temp, ",");
- retval = get_value("id", &temp, &temp3);
+ retval = get_value("ID", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.id, temp3);
+ break;
+ strfieldcpy(dev.id, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.attr.name, temp3);
+ break;
+ strfieldcpy(dev.name, temp3);
- dbg("NUMBER name = '%s', bus = '%s', id = '%s'", dev.attr.name, dev.bus, dev.id);
+ dbg_parse("NUMBER name='%s', bus='%s', id='%s'",
+ dev.name, dev.bus, dev.id);
}
if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
/* BUS="bus" */
retval = get_value("BUS", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.bus, temp3);
+ break;
+ strfieldcpy(dev.bus, temp3);
/* PLACE="place" */
temp2 = strsep(&temp, ",");
- retval = get_value("place", &temp, &temp3);
+ retval = get_value("PLACE", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.place, temp3);
+ break;
+ strfieldcpy(dev.place, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.attr.name, temp3);
+ break;
+ strfieldcpy(dev.name, temp3);
- dbg("TOPOLOGY name = '%s', bus = '%s', place = '%s'", dev.attr.name, dev.bus, dev.place);
+ dbg_parse("TOPOLOGY name='%s', bus='%s', place='%s'",
+ dev.name, dev.bus, dev.place);
}
if (strcasecmp(temp2, TYPE_REPLACE) == 0) {
/* KERNEL="kernel_name" */
retval = get_value("KERNEL", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.kernel_name, temp3);
+ break;
+ strfieldcpy(dev.kernel_name, temp3);
+
+ /* NAME="new_name" */
+ temp2 = strsep(&temp, ",");
+ retval = get_value("NAME", &temp, &temp3);
+ if (retval)
+ break;
+ strfieldcpy(dev.name, temp3);
+ dbg_parse("REPLACE name='%s', kernel_name='%s'",
+ dev.name, dev.kernel_name);
+ }
+ if (strcasecmp(temp2, TYPE_CALLOUT) == 0) {
+ /* number type */
+ dev.type = CALLOUT;
+
+ /* BUS="bus" */
+ retval = get_value("BUS", &temp, &temp3);
+ if (retval)
+ break;
+ strfieldcpy(dev.bus, temp3);
+
+ /* PROGRAM="executable" */
+ temp2 = strsep(&temp, ",");
+ retval = get_value("PROGRAM", &temp, &temp3);
+ if (retval)
+ break;
+ strfieldcpy(dev.exec_program, temp3);
+
+ /* ID="id" */
+ temp2 = strsep(&temp, ",");
+ retval = get_value("ID", &temp, &temp3);
+ if (retval)
+ break;
+ strfieldcpy(dev.id, temp3);
/* NAME="new_name" */
temp2 = strsep(&temp, ",");
retval = get_value("NAME", &temp, &temp3);
if (retval)
- continue;
- strcpy(dev.attr.name, temp3);
- dbg("REPLACE name = %s, kernel_name = %s", dev.attr.name, dev.kernel_name);
+ break;
+ strfieldcpy(dev.name, temp3);
+ dbg_parse("CALLOUT name='%s', program='%s'",
+ dev.name, dev.exec_program);
}
retval = add_dev(&dev);
goto exit;
}
}
-
+ dbg_parse("%s:%d:%Zd: error parsing '%s'", udev_config_filename,
+ lineno, temp - line, temp);
exit:
fclose(fd);
return retval;
static int namedev_init_permissions(void)
{
- char filename[255];
char line[255];
char *temp;
char *temp2;
int retval = 0;
struct config_device dev;
- strcpy(filename, NAMEDEV_CONFIG_ROOT NAMEDEV_CONFIG_PERMISSION_FILE);
- dbg("opening %s to read as permissions config", filename);
- fd = fopen(filename, "r");
+ dbg("opening %s to read as permissions config", udev_config_permission_filename);
+ fd = fopen(udev_config_permission_filename, "r");
if (fd == NULL) {
- dbg("Can't open %s", filename);
+ dbg("can't open %s", udev_config_permission_filename);
return -ENODEV;
}
/* loop through the whole file */
while (1) {
- /* get a line */
temp = fgets(line, sizeof(line), fd);
if (temp == NULL)
break;
- dbg("read %s", temp);
+ dbg_parse("read %s", temp);
/* eat the whitespace at the beginning of the line */
while (isspace(*temp))
++temp;
- /* no more line? */
+ /* empty line? */
if (*temp == 0x00)
continue;
/* parse the line */
temp2 = strsep(&temp, ":");
- strncpy(dev.attr.name, temp2, sizeof(dev.attr.name));
+ if (!temp2) {
+ dbg("cannot parse line: %s", line);
+ continue;
+ }
+ strncpy(dev.name, temp2, sizeof(dev.name));
temp2 = strsep(&temp, ":");
- strncpy(dev.attr.owner, temp2, sizeof(dev.attr.owner));
+ if (!temp2) {
+ dbg("cannot parse line: %s", line);
+ continue;
+ }
+ strncpy(dev.owner, temp2, sizeof(dev.owner));
temp2 = strsep(&temp, ":");
- strncpy(dev.attr.group, temp2, sizeof(dev.attr.owner));
+ if (!temp2) {
+ dbg("cannot parse line: %s", line);
+ continue;
+ }
+ strncpy(dev.group, temp2, sizeof(dev.owner));
- dev.attr.mode = strtol(temp, NULL, 8);
+ dev.mode = strtol(temp, NULL, 8);
- dbg("name = %s, owner = %s, group = %s, mode = %#o", dev.attr.name, dev.attr.owner, dev.attr.group, dev.attr.mode);
+ dbg_parse("name='%s', owner='%s', group='%s', mode=%#o",
+ dev.name, dev.owner, dev.group,
+ dev.mode);
retval = add_dev(&dev);
if (retval) {
dbg("add_dev returned with error %d", retval);
return retval;
}
-static int get_default_mode(struct sysfs_class_device *class_dev)
+static mode_t get_default_mode(struct sysfs_class_device *class_dev)
{
/* just default everyone to rw for the world! */
return 0666;
}
-static int get_attr(struct sysfs_class_device *class_dev, struct device_attr *attr)
+static int exec_callout(struct config_device *dev, char *value, int len)
+{
+ int retval;
+ int res;
+ int status;
+ int fds[2];
+ pid_t pid;
+ int value_set = 0;
+ char buffer[256];
+ char *arg;
+ char *args[CALLOUT_MAXARG];
+ int i;
+
+ dbg("callout to '%s'", dev->exec_program);
+ retval = pipe(fds);
+ if (retval != 0) {
+ dbg("pipe failed");
+ return -1;
+ }
+ pid = fork();
+ if (pid == -1) {
+ dbg("fork failed");
+ return -1;
+ }
+
+ if (pid == 0) {
+ /* child */
+ close(STDOUT_FILENO);
+ dup(fds[1]); /* dup write side of pipe to STDOUT */
+ if (strchr(dev->exec_program, ' ')) {
+ /* callout with arguments */
+ arg = dev->exec_program;
+ for (i=0; i < CALLOUT_MAXARG-1; i++) {
+ args[i] = strsep(&arg, " ");
+ if (args[i] == NULL)
+ break;
+ }
+ if (args[i]) {
+ dbg("too many args - %d", i);
+ args[i] = NULL;
+ }
+ retval = execve(args[0], args, main_envp);
+ } else {
+ retval = execve(dev->exec_program, main_argv, main_envp);
+ }
+ if (retval != 0) {
+ dbg("child execve failed");
+ exit(1);
+ }
+ return -1; /* avoid compiler warning */
+ } else {
+ /* parent reads from fds[0] */
+ close(fds[1]);
+ retval = 0;
+ while (1) {
+ res = read(fds[0], buffer, sizeof(buffer) - 1);
+ if (res <= 0)
+ break;
+ buffer[res] = '\0';
+ if (res > len) {
+ dbg("callout len %d too short\n", len);
+ retval = -1;
+ }
+ if (value_set) {
+ dbg("callout value already set");
+ retval = -1;
+ } else {
+ value_set = 1;
+ strncpy(value, buffer, len);
+ }
+ }
+ dbg("callout returned '%s'", value);
+ close(fds[0]);
+ res = wait(&status);
+ if (res < 0) {
+ dbg("wait failed result %d", res);
+ retval = -1;
+ }
+
+#ifndef __KLIBC__
+ if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
+ dbg("callout program status 0x%x", status);
+ retval = -1;
+ }
+#endif
+ }
+ return retval;
+}
+
+static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev, char *value, int len)
{
+ struct config_device *dev;
struct list_head *tmp;
- int retval = 0;
list_for_each(tmp, &config_device_list) {
- struct config_device *dev = list_entry(tmp, struct config_device, node);
- if (strcmp(dev->attr.name, class_dev->name) == 0) {
- attr->mode = dev->attr.mode;
- strcpy(attr->owner, dev->attr.owner);
- strcpy(attr->group, dev->attr.group);
- /* FIXME put the proper name here!!! */
- strcpy(attr->name, dev->attr.name);
- dbg("%s - owner = %s, group = %s, mode = %#o", dev->attr.name, dev->attr.owner, dev->attr.group, dev->attr.mode);
- goto exit;
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != CALLOUT)
+ continue;
+ if (exec_callout(dev, value, len))
+ continue;
+ if (strncmp_wildcard(value, dev->id, len) != 0)
+ continue;
+ strfieldcpy(udev->name, dev->name);
+ if (dev->mode != 0) {
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
+ }
+ dbg_parse("callout returned matching value '%s', '%s' becomes '%s'"
+ " - owner='%s', group='%s', mode =%#o",
+ dev->id, class_dev->name, udev->name,
+ dev->owner, dev->group, dev->mode);
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+ struct sysfs_attribute *tmpattr = NULL;
+ struct config_device *dev;
+ struct list_head *tmp;
+
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != LABEL)
+ continue;
+
+ dbg_parse("look for device attribute '%s'", dev->sysfs_file);
+ /* try to find the attribute in the class device directory */
+ tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
+ if (tmpattr)
+ goto label_found;
+
+ /* look in the class device directory if present */
+ if (sysfs_device) {
+ tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
+ if (tmpattr)
+ goto label_found;
+ }
+
+ continue;
+
+label_found:
+ tmpattr->value[strlen(tmpattr->value)-1] = 0x00;
+ dbg_parse("compare attribute '%s' value '%s' with '%s'",
+ dev->sysfs_file, tmpattr->value, dev->sysfs_value);
+ if (strcmp(dev->sysfs_value, tmpattr->value) != 0)
+ continue;
+
+ strfieldcpy(udev->name, dev->name);
+ if (dev->mode != 0) {
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
+ }
+ dbg_parse("found matching attribute '%s', '%s' becomes '%s' "
+ "- owner='%s', group='%s', mode=%#o",
+ dev->sysfs_file, class_dev->name, udev->name,
+ dev->owner, dev->group, dev->mode);
+
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+ struct config_device *dev;
+ struct list_head *tmp;
+ char path[SYSFS_PATH_MAX];
+ int found;
+ char *temp = NULL;
+
+ /* we have to have a sysfs device for NUMBER to work */
+ if (!sysfs_device)
+ return -ENODEV;
+
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != NUMBER)
+ continue;
+
+ found = 0;
+ strfieldcpy(path, sysfs_device->path);
+ temp = strrchr(path, '/');
+ dbg_parse("search '%s' in '%s', path='%s'", dev->id, temp, path);
+ if (strstr(temp, dev->id) != NULL) {
+ found = 1;
+ } else {
+ *temp = 0x00;
+ temp = strrchr(path, '/');
+ dbg_parse("search '%s' in '%s', path='%s'", dev->id, temp, path);
+ if (strstr(temp, dev->id) != NULL)
+ found = 1;
+ }
+ if (!found)
+ continue;
+ strfieldcpy(udev->name, dev->name);
+ if (dev->mode != 0) {
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
+ }
+ dbg_parse("found matching id '%s', '%s' becomes '%s'"
+ " - owner='%s', group ='%s', mode=%#o",
+ dev->id, class_dev->name, udev->name,
+ dev->owner, dev->group, dev->mode);
+ return 0;
+ }
+ return -ENODEV;
+}
+
+
+static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+ struct config_device *dev;
+ struct list_head *tmp;
+ char path[SYSFS_PATH_MAX];
+ int found;
+ char *temp = NULL;
+
+ /* we have to have a sysfs device for TOPOLOGY to work */
+ if (!sysfs_device)
+ return -ENODEV;
+
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != TOPOLOGY)
+ continue;
+
+ found = 0;
+ strfieldcpy(path, sysfs_device->path);
+ temp = strrchr(path, '/');
+ dbg_parse("search '%s' in '%s', path='%s'", dev->place, temp, path);
+ if (strstr(temp, dev->place) != NULL) {
+ found = 1;
+ } else {
+ *temp = 0x00;
+ temp = strrchr(path, '/');
+ dbg_parse("search '%s' in '%s', path='%s'", dev->place, temp, path);
+ if (strstr(temp, dev->place) != NULL)
+ found = 1;
+ }
+ if (!found)
+ continue;
+
+ strfieldcpy(udev->name, dev->name);
+ if (dev->mode != 0) {
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
+ }
+ dbg_parse("found matching place '%s', '%s' becomes '%s'"
+ " - owner='%s', group ='%s', mode=%#o",
+ dev->place, class_dev->name, udev->name,
+ dev->owner, dev->group, dev->mode);
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+ struct config_device *dev;
+ struct list_head *tmp;
+
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != REPLACE)
+ continue;
+
+ dbg_parse("compare name '%s' with '%s'",
+ dev->kernel_name, dev->name);
+ if (strcmp(dev->kernel_name, class_dev->name) != 0)
+ continue;
+
+ strfieldcpy(udev->name, dev->name);
+ if (dev->mode != 0) {
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
+ }
+ dbg_parse("found name, '%s' becomes '%s' - owner='%s', group='%s', mode = %#o",
+ dev->kernel_name, udev->name,
+ dev->owner, dev->group, dev->mode);
+
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+ struct config_device *dev;
+ struct list_head *tmp;
+ int len;
+
+ strfieldcpy(udev->name, class_dev->name);
+ /* look for permissions */
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ len = strlen(dev->name);
+ if (strncmp_wildcard(class_dev->name, dev->name, sizeof(dev->name)))
+ continue;
+ if (dev->mode != 0) {
+ dbg_parse("found permissions for '%s'", class_dev->name);
+ udev->mode = dev->mode;
+ strfieldcpy(udev->owner, dev->owner);
+ strfieldcpy(udev->group, dev->group);
}
}
- attr->mode = get_default_mode(class_dev);
- attr->owner[0] = 0x00;
- attr->group[0] = 0x00;
- strcpy(attr->name, class_dev->name);
-exit:
- return retval;
}
-int namedev_name_device(struct sysfs_class_device *class_dev, struct device_attr *attr)
+static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+ struct sysfs_device *sysfs_device = NULL;
+ struct sysfs_class_device *class_dev_parent = NULL;
+ int retval = 0;
+ char *temp = NULL;
+ char value[ID_SIZE];
+
+ udev->mode = 0;
+
+ /* find the sysfs_device for this class device */
+ /* Wouldn't it really be nice if libsysfs could do this for us? */
+ if (class_dev->sysdevice) {
+ sysfs_device = class_dev->sysdevice;
+ } else {
+ /* bah, let's go backwards up a level to see if the device is there,
+ * as block partitions don't point to the physical device. Need to fix that
+ * up in the kernel...
+ */
+ if (strstr(class_dev->path, "block")) {
+ dbg_parse("looking at block device...");
+ if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
+ char path[SYSFS_PATH_MAX];
+
+ dbg_parse("really is a partition...");
+ strfieldcpy(path, class_dev->path);
+ temp = strrchr(path, '/');
+ *temp = 0x00;
+ dbg_parse("looking for a class device at '%s'", path);
+ class_dev_parent = sysfs_open_class_device(path);
+ if (class_dev_parent == NULL) {
+ dbg("sysfs_open_class_device at '%s' failed", path);
+ } else {
+ dbg_parse("class_dev_parent->name=%s", class_dev_parent->name);
+ if (class_dev_parent->sysdevice)
+ sysfs_device = class_dev_parent->sysdevice;
+ }
+ }
+ }
+ }
+
+ if (sysfs_device) {
+ dbg_parse("sysfs_device->path='%s'", sysfs_device->path);
+ dbg_parse("sysfs_device->bus_id='%s'", sysfs_device->bus_id);
+ } else {
+ dbg_parse("class_dev->name = '%s'", class_dev->name);
+ }
+
+ /* rules are looked at in priority order */
+ retval = do_callout(class_dev, udev, value, sizeof(value));
+ if (retval == 0)
+ goto found;
+
+ retval = do_label(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto found;
+
+ retval = do_number(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto found;
+
+ retval = do_topology(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto found;
+
+ retval = do_replace(class_dev, udev);
+ if (retval == 0)
+ goto found;
+
+ do_kernelname(class_dev, udev);
+ goto done;
+
+found:
+ /* substitute placeholder in NAME */
+ while (1) {
+ char *pos = strchr(udev->name, '%');
+ char *dig;
+ char name[NAME_SIZE];
+
+ if (pos) {
+ strfieldcpy(name, pos+2);
+ *pos = 0x00;
+ switch (pos[1]) {
+ case 'b':
+ if (!sysfs_device)
+ break;
+ strcat(udev->name, sysfs_device->bus_id);
+ dbg("substitute bus_id '%s'", sysfs_device->bus_id);
+ break;
+ case 'n':
+ dig = class_dev->name + strlen(class_dev->name);
+ while (isdigit(*(dig-1)))
+ dig--;
+ strcat(pos, dig);
+ dbg("substitute kernel number '%s'", dig);
+ break;
+ case 'm':
+ sprintf(pos, "%u", udev->minor);
+ dbg("substitute minor number '%u'", udev->minor);
+ break;
+ case 'M':
+ sprintf(pos, "%u", udev->major);
+ dbg("substitute major number '%u'", udev->major);
+ break;
+ case 'c':
+ strcat(pos, value);
+ dbg("substitute callout output '%s'", value);
+ break;
+ default:
+ dbg("unknown substitution type '%%%c'", pos[1]);
+ break;
+ }
+ strcat(udev->name, name);
+ } else
+ break;
+ }
+
+done:
+ /* mode was never set above */
+ if (!udev->mode) {
+ udev->mode = get_default_mode(class_dev);
+ udev->owner[0] = 0x00;
+ udev->group[0] = 0x00;
+ }
+
+ if (class_dev_parent)
+ sysfs_close_class_device(class_dev_parent);
+
+ return 0;
+}
+
+int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *dev)
{
int retval;
- retval = get_attr(class_dev, attr);
+ retval = get_attr(class_dev, dev);
if (retval)
dbg("get_attr failed");
dump_dev_list();
return retval;
}
-
-
~ianmdlvl / elogind.git / blobdiff