char *temp;
linepos = *line;
- if (!linepos)
+ if (linepos == NULL)
return -1;
- if (strchr(linepos, '\\')) {
- dbg("escaped characters are not supported, skip");
- return -1;
- }
-
/* skip whitespace */
while (isspace(linepos[0]))
linepos++;
/* get the key */
+ temp = strchr(linepos, '=');
+ if (temp == NULL || temp == linepos)
+ return -1;
+ temp[0] = '\0';
*key = linepos;
- while (1) {
- linepos++;
- if (linepos[0] == '\0')
- return -1;
- if (isspace(linepos[0]))
- break;
- if (linepos[0] == '=')
- break;
+ linepos = &temp[1];
+
+ /* get a quoted value */
+ if (linepos[0] == '"' || linepos[0] == '\'') {
+ temp = strchr(&linepos[1], linepos[0]);
+ if (temp != NULL) {
+ temp[0] = '\0';
+ *value = &linepos[1];
+ goto out;
+ }
}
- /* terminate key */
- linepos[0] = '\0';
- linepos++;
-
- /* skip whitespace */
- while (isspace(linepos[0]))
- linepos++;
-
/* get the value*/
- if (linepos[0] == '"') {
- linepos++;
- temp = strchr(linepos, '"');
- if (!temp) {
- dbg("missing closing quote");
- return -1;
- }
- dbg("value is quoted");
- temp[0] = '\0';
- } else if (linepos[0] == '\'') {
- linepos++;
- temp = strchr(linepos, '\'');
- if (!temp) {
- dbg("missing closing quote");
- return -1;
- }
- dbg("value is quoted");
+ temp = strchr(linepos, '\n');
+ if (temp != NULL)
temp[0] = '\0';
- } else if (linepos[0] == '\0') {
- dbg("value is empty");
- } else {
- temp = linepos;
- while (temp[0] && !isspace(temp[0]))
- temp++;
- temp[0] = '\0';
- }
*value = linepos;
-
+out:
return 0;
}
static int import_program_into_env(struct udevice *udev, const char *program)
{
- char result[1024];
+ char result[2048];
size_t reslen;
if (run_program(program, udev->dev->subsystem, result, sizeof(result), &reslen, (udev_log_priority >= LOG_INFO)) != 0)
struct name_entry *name_loop;
dbg("found parent '%s', get the node name", dev_parent->devpath);
- udev_parent = udev_device_init();
+ udev_parent = udev_device_init(NULL);
if (udev_parent == NULL)
return -1;
/* import the udev_db of the parent */
info("file '%s' appeared after %i loops", filepath, (timeout * WAIT_LOOP_PER_SECOND) - loop-1);
return 0;
}
- /* make sure the device does not have disappeared in the meantime */
+ /* make sure, the device did not disappear in the meantime */
if (stat(devicepath, &stats) != 0) {
info("device disappeared while waiting for '%s'", filepath);
return -2;
if (value == NULL)
break;
- /* strip trailing whitespace and replace untrusted characters of sysfs value */
+ /* strip trailing whitespace, and replace unwanted characters */
size = strlcpy(temp2, value, sizeof(temp2));
if (size >= sizeof(temp2))
size = sizeof(temp2)-1;
while (size > 0 && isspace(temp2[size-1]))
temp2[--size] = '\0';
- count = replace_untrusted_chars(temp2);
+ count = replace_chars(temp2, ALLOWED_CHARS_INPUT);
if (count > 0)
- info("%i untrusted character(s) replaced" , count);
+ info("%i character(s) replaced" , count);
strlcat(string, temp2, maxsize);
dbg("substitute sysfs value '%s'", temp2);
}
struct udevice *udev_parent;
dbg("found parent '%s', get the node name", dev_parent->devpath);
- udev_parent = udev_device_init();
+ udev_parent = udev_device_init(NULL);
if (udev_parent != NULL) {
/* lookup the name in the udev_db with the DEVPATH of the parent */
if (udev_db_get_device(udev_parent, dev_parent->devpath) == 0) {
}
break;
case SUBST_TEMP_NODE:
- if (udev->tmp_node[0] == '\0') {
+ if (udev->tmp_node[0] == '\0' && major(udev->devt) > 0) {
dbg("create temporary device node for callout");
snprintf(udev->tmp_node, sizeof(udev->tmp_node), "%s/.tmp-%u-%u",
udev_root, major(udev->devt), minor(udev->devt));
static int match_key(const char *key_name, struct udev_rule *rule, struct key *key, const char *val)
{
- int match;
char value[PATH_SIZE];
char *key_value;
char *pos;
+ int match = 0;
if (key->operation != KEY_OP_MATCH &&
key->operation != KEY_OP_NOMATCH)
return 0;
+ /* look for a matching string, parts are separated by '|' */
strlcpy(value, rule->buf + key->val_off, sizeof(value));
key_value = value;
-
dbg("key %s value='%s'", key_name, key_value);
while (key_value) {
pos = strchr(key_value, '|');
pos[0] = '\0';
pos++;
}
+
dbg("match %s '%s' <-> '%s'", key_name, key_value, val);
match = (fnmatch(key_value, val, 0) == 0);
- if (match && (key->operation != KEY_OP_NOMATCH)) {
- dbg("%s is true (matching value)", key_name);
- return 0;
- }
- if (!match && (key->operation == KEY_OP_NOMATCH)) {
- dbg("%s is true (non-matching value)", key_name);
- return 0;
- }
+ if (match)
+ break;
+
key_value = pos;
}
- dbg("%s is false", key_name);
+
+ if (match && (key->operation == KEY_OP_MATCH)) {
+ dbg("%s is true (matching value)", key_name);
+ return 0;
+ }
+ if (!match && (key->operation == KEY_OP_NOMATCH)) {
+ dbg("%s is true (non-matching value)", key_name);
+ return 0;
+ }
return -1;
}
dbg("PROGRAM matches");
remove_trailing_chars(result, '\n');
- count = replace_untrusted_chars(result);
+ count = replace_chars(result, ALLOWED_CHARS_INPUT);
if (count)
- info("%i untrusted character(s) replaced" , count);
+ info("%i character(s) replaced" , count);
dbg("result is '%s'", result);
strlcpy(udev->program_result, result, sizeof(udev->program_result));
dbg("PROGRAM returned successful");
char temp_value[NAME_SIZE];
const char *key_name = key_pair_name(rule, pair);
const char *value = key_val(rule, &pair->key);
- char *key_value;
/* make sure we don't write to the same string we possibly read from */
strlcpy(temp_value, value, sizeof(temp_value));
udev_rules_apply_format(udev, temp_value, NAME_SIZE);
- key_value = name_list_key_add(&udev->env_list, key_name, temp_value);
- if (key_value == NULL)
- break;
+ if (temp_value[0] == '\0') {
+ name_list_key_remove(&udev->env_list, key_name);
+ unsetenv(key_name);
+ info("unset ENV '%s'", key_name);
+ } else {
+ char *key_value = name_list_key_add(&udev->env_list, key_name, temp_value);
- putenv(key_value);
- dbg("export ENV '%s'", key_value);
+ if (key_value == NULL)
+ break;
+ putenv(key_value);
+ info("set ENV '%s'", key_value);
+ }
}
}
- /* if we have ATTR assignements write value to sysfs file */
+ /* if we have ATTR assignments, write value to sysfs file */
for (i = 0; i < rule->attr.count; i++) {
struct key_pair *pair = &rule->attr.keys[i];
info("writing '%s' to sysfs file '%s'", value, attr);
f = fopen(attr, "w");
if (f != NULL) {
- if (fprintf(f, "%s", value) <= 0)
- err("error writing ATTR{%s}: %s", attr, strerror(errno));
+ if (!udev->test_run)
+ if (fprintf(f, "%s", value) <= 0)
+ err("error writing ATTR{%s}: %s", attr, strerror(errno));
fclose(f);
} else
err("error opening ATTR{%s} for writing: %s", attr, strerror(errno));
udev->ignore_remove = 1;
dbg("remove event should be ignored");
}
- if (rule->link_priority) {
+ if (rule->link_priority != 0) {
udev->link_priority = rule->link_priority;
info("link_priority=%i", udev->link_priority);
}
info("reset symlink list");
name_list_cleanup(&udev->symlink_list);
}
+ /* allow multiple symlinks separated by spaces */
strlcpy(temp, key_val(rule, &rule->symlink), sizeof(temp));
udev_rules_apply_format(udev, temp, sizeof(temp));
- count = replace_untrusted_chars(temp);
+ count = replace_chars(temp, ALLOWED_CHARS_FILE " ");
if (count)
- info("%i untrusted character(s) replaced" , count);
+ info("%i character(s) replaced" , count);
dbg("rule applied, added symlink(s) '%s'", temp);
-
- /* add multiple symlinks separated by spaces */
pos = temp;
while (isspace(pos[0]))
pos++;
name_set = 1;
strlcpy(udev->name, key_val(rule, &rule->name), sizeof(udev->name));
udev_rules_apply_format(udev, udev->name, sizeof(udev->name));
- count = replace_untrusted_chars(udev->name);
+ count = replace_chars(udev->name, ALLOWED_CHARS_FILE);
if (count)
- info("%i untrusted character(s) replaced", count);
+ info("%i character(s) replaced", count);
info("rule applied, '%s' becomes '%s'", udev->dev->kernel, udev->name);
if (strcmp(udev->dev->subsystem, "net") != 0)
~ianmdlvl / elogind.git / blobdiff