return current;
}
-/* extract possible {attr} and move str behind it */
-static char *get_format_attribute(struct udev *udev, char **str)
-{
- char *pos;
- char *attr = NULL;
-
- if (*str[0] == '{') {
- pos = strchr(*str, '}');
- if (pos == NULL) {
- err(udev, "missing closing brace for format\n");
- return NULL;
- }
- pos[0] = '\0';
- attr = *str+1;
- *str = pos+1;
- dbg(udev, "attribute='%s', str='%s'\n", attr, *str);
- }
- return attr;
-}
-
-/* extract possible format length and move str behind it*/
-static int get_format_len(struct udev *udev, char **str)
-{
- int num;
- char *tail;
-
- if (isdigit(*str[0])) {
- num = (int) strtoul(*str, &tail, 10);
- if (num > 0) {
- *str = tail;
- dbg(udev, "format length=%i\n", num);
- return num;
- } else {
- err(udev, "format parsing error '%s'\n", *str);
- }
- }
- return -1;
-}
-
static int import_property_from_string(struct udev_device *dev, char *line)
{
struct udev *udev = udev_device_get_udev(dev);
return -1;
}
-/* handle "[$SUBSYSTEM/$KERNEL]<attribute>" lookup */
-static int split_subsys_sysname(struct udev *udev, char *attrstr, char **subsys, char **sysname, char **attr)
-{
- char *pos;
-
- if (attrstr[0] != '[')
- return -1;
-
- *subsys = &attrstr[1];
- pos = strchr(*subsys, ']');
- if (pos == NULL)
- return -1;
- pos[0] = '\0';
- pos = &pos[1];
-
- if (pos[0] == '/')
- pos = &pos[1];
- if (pos[0] != '\0')
- *attr = pos;
- else
- *attr = NULL;
-
- pos = strchr(*subsys, '/');
- if (pos == NULL)
- return -1;
- pos[0] = '\0';
- *sysname = &pos[1];
- return 0;
-}
-
static int attr_subst_subdir(char *attr, size_t len)
{
char *pos;
return found;
}
-void udev_rules_apply_format(struct udev_event *event, char *string, size_t maxsize)
-{
- struct udev_device *dev = event->dev;
- char temp[UTIL_PATH_SIZE];
- char temp2[UTIL_PATH_SIZE];
- char *head, *tail, *cpos, *attr, *rest;
- int len;
- int i;
- int count;
- enum subst_type {
- SUBST_UNKNOWN,
- SUBST_DEVPATH,
- SUBST_KERNEL,
- SUBST_KERNEL_NUMBER,
- SUBST_ID,
- SUBST_DRIVER,
- SUBST_MAJOR,
- SUBST_MINOR,
- SUBST_RESULT,
- SUBST_ATTR,
- SUBST_PARENT,
- SUBST_TEMP_NODE,
- SUBST_NAME,
- SUBST_LINKS,
- SUBST_ROOT,
- SUBST_SYS,
- SUBST_ENV,
- };
- static const struct subst_map {
- char *name;
- char fmt;
- enum subst_type type;
- } map[] = {
- { .name = "devpath", .fmt = 'p', .type = SUBST_DEVPATH },
- { .name = "number", .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
- { .name = "kernel", .fmt = 'k', .type = SUBST_KERNEL },
- { .name = "id", .fmt = 'b', .type = SUBST_ID },
- { .name = "driver", .fmt = 'd', .type = SUBST_DRIVER },
- { .name = "major", .fmt = 'M', .type = SUBST_MAJOR },
- { .name = "minor", .fmt = 'm', .type = SUBST_MINOR },
- { .name = "result", .fmt = 'c', .type = SUBST_RESULT },
- { .name = "attr", .fmt = 's', .type = SUBST_ATTR },
- { .name = "sysfs", .fmt = 's', .type = SUBST_ATTR },
- { .name = "parent", .fmt = 'P', .type = SUBST_PARENT },
- { .name = "tempnode", .fmt = 'N', .type = SUBST_TEMP_NODE },
- { .name = "name", .fmt = 'D', .type = SUBST_NAME },
- { .name = "links", .fmt = 'L', .type = SUBST_LINKS },
- { .name = "root", .fmt = 'r', .type = SUBST_ROOT },
- { .name = "sys", .fmt = 'S', .type = SUBST_SYS },
- { .name = "env", .fmt = 'E', .type = SUBST_ENV },
- { NULL, '\0', 0 }
- };
- enum subst_type type;
- const struct subst_map *subst;
-
- head = string;
- while (1) {
- len = -1;
- while (head[0] != '\0') {
- if (head[0] == '$') {
- /* substitute named variable */
- if (head[1] == '\0')
- break;
- if (head[1] == '$') {
- util_strlcpy(temp, head+2, sizeof(temp));
- util_strlcpy(head+1, temp, maxsize);
- head++;
- continue;
- }
- head[0] = '\0';
- for (subst = map; subst->name; subst++) {
- if (strncasecmp(&head[1], subst->name, strlen(subst->name)) == 0) {
- type = subst->type;
- tail = head + strlen(subst->name)+1;
- dbg(event->udev, "will substitute format name '%s'\n", subst->name);
- goto found;
- }
- }
- head[0] = '$';
- err(event->udev, "unknown format variable '%s'\n", head);
- } else if (head[0] == '%') {
- /* substitute format char */
- if (head[1] == '\0')
- break;
- if (head[1] == '%') {
- util_strlcpy(temp, head+2, sizeof(temp));
- util_strlcpy(head+1, temp, maxsize);
- head++;
- continue;
- }
- head[0] = '\0';
- tail = head+1;
- len = get_format_len(event->udev, &tail);
- for (subst = map; subst->name; subst++) {
- if (tail[0] == subst->fmt) {
- type = subst->type;
- tail++;
- dbg(event->udev, "will substitute format char '%c'\n", subst->fmt);
- goto found;
- }
- }
- head[0] = '%';
- err(event->udev, "unknown format char '%c'\n", tail[0]);
- }
- head++;
- }
- break;
-found:
- attr = get_format_attribute(event->udev, &tail);
- util_strlcpy(temp, tail, sizeof(temp));
- dbg(event->udev, "format=%i, string='%s', tail='%s'\n", type ,string, tail);
-
- switch (type) {
- case SUBST_DEVPATH:
- util_strlcat(string, udev_device_get_devpath(dev), maxsize);
- dbg(event->udev, "substitute devpath '%s'\n", udev_device_get_devpath(dev));
- break;
- case SUBST_KERNEL:
- util_strlcat(string, udev_device_get_sysname(dev), maxsize);
- dbg(event->udev, "substitute kernel name '%s'\n", udev_device_get_sysname(dev));
- break;
- case SUBST_KERNEL_NUMBER:
- if (udev_device_get_sysnum(dev) == NULL)
- break;
- util_strlcat(string, udev_device_get_sysnum(dev), maxsize);
- dbg(event->udev, "substitute kernel number '%s'\n", udev_device_get_sysnum(dev));
- break;
- case SUBST_ID:
- if (event->dev_parent != NULL) {
- util_strlcat(string, udev_device_get_sysname(event->dev_parent), maxsize);
- dbg(event->udev, "substitute id '%s'\n", udev_device_get_sysname(event->dev_parent));
- }
- break;
- case SUBST_DRIVER:
- if (event->dev_parent != NULL) {
- const char *driver = udev_device_get_driver(event->dev_parent);
-
- if (driver == NULL)
- break;
- util_strlcat(string, driver, maxsize);
- dbg(event->udev, "substitute driver '%s'\n", driver);
- }
- break;
- case SUBST_MAJOR:
- sprintf(temp2, "%d", major(udev_device_get_devnum(dev)));
- util_strlcat(string, temp2, maxsize);
- dbg(event->udev, "substitute major number '%s'\n", temp2);
- break;
- case SUBST_MINOR:
- sprintf(temp2, "%d", minor(udev_device_get_devnum(dev)));
- util_strlcat(string, temp2, maxsize);
- dbg(event->udev, "substitute minor number '%s'\n", temp2);
- break;
- case SUBST_RESULT:
- if (event->program_result[0] == '\0')
- break;
- /* get part part of the result string */
- i = 0;
- if (attr != NULL)
- i = strtoul(attr, &rest, 10);
- if (i > 0) {
- dbg(event->udev, "request part #%d of result string\n", i);
- cpos = event->program_result;
- while (--i) {
- while (cpos[0] != '\0' && !isspace(cpos[0]))
- cpos++;
- while (isspace(cpos[0]))
- cpos++;
- }
- if (i > 0) {
- err(event->udev, "requested part of result string not found\n");
- break;
- }
- util_strlcpy(temp2, cpos, sizeof(temp2));
- /* %{2+}c copies the whole string from the second part on */
- if (rest[0] != '+') {
- cpos = strchr(temp2, ' ');
- if (cpos)
- cpos[0] = '\0';
- }
- util_strlcat(string, temp2, maxsize);
- dbg(event->udev, "substitute part of result string '%s'\n", temp2);
- } else {
- util_strlcat(string, event->program_result, maxsize);
- dbg(event->udev, "substitute result string '%s'\n", event->program_result);
- }
- break;
- case SUBST_ATTR:
- if (attr == NULL)
- err(event->udev, "missing file parameter for attr\n");
- else {
- char *subsys;
- char *sysname;
- char *attrib;
- char value[UTIL_NAME_SIZE] = "";
- size_t size;
-
- if (split_subsys_sysname(event->udev, attr, &subsys, &sysname, &attrib) == 0) {
- struct udev_device *d;
- const char *val;
-
- if (attrib == NULL)
- break;
- d = udev_device_new_from_subsystem_sysname(event->udev, subsys, sysname);
- if (d == NULL)
- break;
- val = udev_device_get_attr_value(d, attrib);
- if (val != NULL)
- util_strlcpy(value, val, sizeof(value));
- udev_device_unref(d);
- }
-
- /* try the current device, other matches may have selected */
- if (value[0]=='\0' && event->dev_parent != NULL && event->dev_parent != event->dev) {
- const char *val;
-
- val = udev_device_get_attr_value(event->dev_parent, attr);
- if (val != NULL)
- util_strlcpy(value, val, sizeof(value));
- }
-
- /* look at all devices along the chain of parents */
- if (value[0]=='\0') {
- struct udev_device *dev_parent = dev;
- const char *val;
-
- do {
- dbg(event->udev, "looking at '%s'\n", udev_device_get_syspath(dev_parent));
- val = udev_device_get_attr_value(dev_parent, attr);
- if (val != NULL) {
- util_strlcpy(value, val, sizeof(value));
- break;
- }
- dev_parent = udev_device_get_parent(dev_parent);
- } while (dev_parent != NULL);
- }
-
- if (value[0]=='\0')
- break;
-
- /* strip trailing whitespace, and replace unwanted characters */
- size = strlen(value);
- while (size > 0 && isspace(value[--size]))
- value[size] = '\0';
- count = util_replace_chars(value, ALLOWED_CHARS_INPUT);
- if (count > 0)
- info(event->udev, "%i character(s) replaced\n" , count);
- util_strlcat(string, value, maxsize);
- dbg(event->udev, "substitute sysfs value '%s'\n", value);
- }
- break;
- case SUBST_PARENT:
- {
- struct udev_device *dev_parent;
- const char *devnode;
-
- dev_parent = udev_device_get_parent(event->dev);
- if (dev_parent == NULL)
- break;
- devnode = udev_device_get_devnode(dev_parent);
- if (devnode != NULL) {
- size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
-
- util_strlcat(string, &devnode[devlen], maxsize);
- dbg(event->udev, "found parent '%s', got node name '%s'\n",
- udev_device_get_syspath(dev_parent), &devnode[devlen]);
- }
- }
- break;
- case SUBST_TEMP_NODE:
- if (event->tmp_node[0] == '\0' && major(udev_device_get_devnum(dev)) > 0) {
- dbg(event->udev, "create temporary device node for callout\n");
- snprintf(event->tmp_node, sizeof(event->tmp_node), "%s/.tmp-%u-%u",
- udev_get_dev_path(event->udev),
- major(udev_device_get_devnum(dev)), minor(udev_device_get_devnum(dev)));
- udev_node_mknod(dev, event->tmp_node, makedev(0,0), 0600, 0, 0);
- }
- util_strlcat(string, event->tmp_node, maxsize);
- dbg(event->udev, "substitute temporary device node name '%s'\n", event->tmp_node);
- break;
- case SUBST_NAME:
- if (event->name != NULL) {
- util_strlcat(string, event->name, maxsize);
- dbg(event->udev, "substitute name '%s'\n", event->name);
- } else {
- util_strlcat(string, udev_device_get_sysname(dev), maxsize);
- dbg(event->udev, "substitute sysname '%s'\n", udev_device_get_sysname(dev));
- }
- break;
- case SUBST_LINKS:
- {
- struct udev_list_entry *list_entry;
-
- list_entry = udev_device_get_properties_list_entry(dev);
- util_strlcpy(string, udev_list_entry_get_name(list_entry), maxsize);
- udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry)) {
- util_strlcat(string, " ", maxsize);
- util_strlcat(string, udev_list_entry_get_name(list_entry), maxsize);
- }
- }
- break;
- case SUBST_ROOT:
- util_strlcat(string, udev_get_dev_path(event->udev), maxsize);
- dbg(event->udev, "substitute udev_root '%s'\n", udev_get_dev_path(event->udev));
- break;
- case SUBST_SYS:
- util_strlcat(string, udev_get_sys_path(event->udev), maxsize);
- dbg(event->udev, "substitute sys_path '%s'\n", udev_get_sys_path(event->udev));
- break;
- case SUBST_ENV:
- if (attr == NULL) {
- dbg(event->udev, "missing attribute\n");
- break;
- } else {
- struct udev_list_entry *list_entry;
- const char *value;
-
- list_entry = udev_device_get_properties_list_entry(event->dev);
- list_entry = udev_list_entry_get_by_name(list_entry, attr);
- if (list_entry == NULL)
- break;
- value = udev_list_entry_get_value(list_entry);
- dbg(event->udev, "substitute env '%s=%s'\n", attr, value);
- util_strlcat(string, value, maxsize);
- break;
- }
- default:
- err(event->udev, "unknown substitution type=%i\n", type);
- break;
- }
- /* possibly truncate to format-char specified length */
- if (len >= 0 && len < (int)strlen(head)) {
- head[len] = '\0';
- dbg(event->udev, "truncate to %i chars, subtitution string becomes '%s'\n", len, head);
- }
- util_strlcat(string, temp, maxsize);
- }
-}
-
static char *key_val(struct udev_rule *rule, struct key *key)
{
return rule->buf + key->val_off;
if (rule->test.operation == KEY_OP_MATCH ||
rule->test.operation == KEY_OP_NOMATCH) {
char filename[UTIL_PATH_SIZE];
- char *subsys;
- char *sysname;
- char *attrib;
struct stat statbuf;
int match;
util_strlcpy(filename, key_val(rule, &rule->test), sizeof(filename));
- udev_rules_apply_format(event, filename, sizeof(filename));
-
- if (split_subsys_sysname(event->udev, filename, &subsys, &sysname, &attrib) == 0) {
- struct udev_device *d;
- d = udev_device_new_from_subsystem_sysname(event->udev, subsys, sysname);
- if (d != NULL) {
- util_strlcpy(filename, udev_device_get_syspath(d), sizeof(filename));
- if (attrib != NULL) {
- util_strlcat(filename, "/", sizeof(filename));
- util_strlcat(filename, attrib, sizeof(filename));
- }
- udev_device_unref(d);
- }
- } else if (filename[0] != '/') {
- char tmp[UTIL_PATH_SIZE];
+ udev_event_apply_format(event, filename, sizeof(filename));
+ if (udev_event_apply_subsys_kernel(event, NULL, filename, sizeof(filename), 0) != 0)
+ if (filename[0] != '/') {
+ char tmp[UTIL_PATH_SIZE];
- util_strlcpy(tmp, udev_device_get_syspath(dev), sizeof(tmp));
- util_strlcat(tmp, "/", sizeof(tmp));
- util_strlcat(tmp, filename, sizeof(tmp));
- util_strlcpy(filename, tmp, sizeof(filename));
- }
+ util_strlcpy(tmp, udev_device_get_syspath(dev), sizeof(tmp));
+ util_strlcat(tmp, "/", sizeof(tmp));
+ util_strlcat(tmp, filename, sizeof(tmp));
+ util_strlcpy(filename, tmp, sizeof(filename));
+ }
attr_subst_subdir(filename, sizeof(filename));
int found;
util_strlcpy(filename, key_val(rule, &rule->wait_for), sizeof(filename));
- udev_rules_apply_format(event, filename, sizeof(filename));
+ udev_event_apply_format(event, filename, sizeof(filename));
found = (wait_for_file(event, filename, 10) == 0);
if (!found && (rule->wait_for.operation != KEY_OP_NOMATCH))
goto nomatch;
char attr[UTIL_PATH_SIZE];
const char *key_name = key_pair_name(rule, pair);
const char *key_value = key_val(rule, &pair->key);
- char *subsys;
- char *sysname;
- char *attrib;
char value[UTIL_NAME_SIZE] = "";
size_t len;
util_strlcpy(attr, key_name, sizeof(attr));
- if (split_subsys_sysname(event->udev, attr, &subsys, &sysname, &attrib) == 0) {
- struct udev_device *d;
- const char *val;
-
- if (attrib == NULL)
- goto nomatch;
- d = udev_device_new_from_subsystem_sysname(event->udev, subsys, sysname);
- if (d == NULL)
- goto nomatch;
- val = udev_device_get_attr_value(d, attrib);
- if (val != NULL)
- util_strlcpy(value, val, sizeof(value));
- udev_device_unref(d);
- }
+ udev_event_apply_subsys_kernel(event, attr, value, sizeof(value), 1);
if (value[0]=='\0') {
const char *val;
char result[UTIL_PATH_SIZE];
util_strlcpy(program, key_val(rule, &rule->program), sizeof(program));
- udev_rules_apply_format(event, program, sizeof(program));
+ udev_event_apply_format(event, program, sizeof(program));
envp = udev_device_get_properties_envp(dev);
if (run_program(event->udev, program, envp, result, sizeof(result), NULL) != 0) {
dbg(event->udev, "PROGRAM is false\n");
int rc = -1;
util_strlcpy(import, key_val(rule, &rule->import), sizeof(import));
- udev_rules_apply_format(event, import, sizeof(import));
+ udev_event_apply_format(event, import, sizeof(import));
dbg(event->udev, "check for IMPORT import='%s'\n", import);
if (rule->import_type == IMPORT_PROGRAM) {
rc = import_program_into_env(event->dev, import);
/* make sure we don't write to the same string we possibly read from */
util_strlcpy(temp_value, value, sizeof(temp_value));
- udev_rules_apply_format(event, temp_value, sizeof(temp_value));
+ udev_event_apply_format(event, temp_value, sizeof(temp_value));
if (temp_value[0] != '\0') {
struct udev_list_entry *entry;
if (pair->key.operation == KEY_OP_ASSIGN) {
const char *key_name = key_pair_name(rule, pair);
- char *subsys;
- char *sysname;
- char *attrib;
char attr[UTIL_PATH_SIZE];
char value[UTIL_NAME_SIZE];
FILE *f;
util_strlcpy(attr, key_name, sizeof(attr));
- if (split_subsys_sysname(event->udev, attr, &subsys, &sysname, &attrib) == 0) {
- struct udev_device *d;
-
- d = udev_device_new_from_subsystem_sysname(event->udev, subsys, sysname);
- if (d != NULL) {
- util_strlcpy(attr, udev_device_get_syspath(d), sizeof(attr));
- if (attrib != NULL) {
- util_strlcat(attr, "/", sizeof(attr));
- util_strlcat(attr, attrib, sizeof(attr));
- }
- udev_device_unref(d);
- }
- } else {
+ if (udev_event_apply_subsys_kernel(event, key_name, attr, sizeof(attr), 0) != 0) {
util_strlcpy(attr, udev_device_get_syspath(dev), sizeof(attr));
util_strlcat(attr, "/", sizeof(attr));
util_strlcat(attr, key_name, sizeof(attr));
attr_subst_subdir(attr, sizeof(attr));
util_strlcpy(value, key_val(rule, &pair->key), sizeof(value));
- udev_rules_apply_format(event, value, sizeof(value));
+ udev_event_apply_format(event, value, sizeof(value));
info(event->udev, "writing '%s' to sysfs file '%s'\n", value, attr);
f = fopen(attr, "w");
if (f != NULL) {
event->mode_final = 1;
char buf[20];
util_strlcpy(buf, key_val(rule, &rule->mode), sizeof(buf));
- udev_rules_apply_format(event, buf, sizeof(buf));
+ udev_event_apply_format(event, buf, sizeof(buf));
event->mode = strtol(buf, NULL, 8);
dbg(event->udev, "applied mode=%#o to '%s'\n",
event->mode, udev_device_get_sysname(dev));
if (rule->owner.operation == KEY_OP_ASSIGN_FINAL)
event->owner_final = 1;
util_strlcpy(event->owner, key_val(rule, &rule->owner), sizeof(event->owner));
- udev_rules_apply_format(event, event->owner, sizeof(event->owner));
+ udev_event_apply_format(event, event->owner, sizeof(event->owner));
dbg(event->udev, "applied owner='%s' to '%s'\n",
event->owner, udev_device_get_sysname(dev));
}
if (rule->group.operation == KEY_OP_ASSIGN_FINAL)
event->group_final = 1;
util_strlcpy(event->group, key_val(rule, &rule->group), sizeof(event->group));
- udev_rules_apply_format(event, event->group, sizeof(event->group));
+ udev_event_apply_format(event, event->group, sizeof(event->group));
dbg(event->udev, "applied group='%s' to '%s'\n",
event->group, udev_device_get_sysname(dev));
}
}
/* allow multiple symlinks separated by spaces */
util_strlcpy(temp, key_val(rule, &rule->symlink), sizeof(temp));
- udev_rules_apply_format(event, temp, sizeof(temp));
+ udev_event_apply_format(event, temp, sizeof(temp));
if (rule->string_escape == ESCAPE_UNSET)
count = util_replace_chars(temp, ALLOWED_CHARS_FILE " ");
else if (rule->string_escape == ESCAPE_REPLACE)
name_set = 1;
util_strlcpy(event->name, key_val(rule, &rule->name), sizeof(event->name));
- udev_rules_apply_format(event, event->name, sizeof(event->name));
+ udev_event_apply_format(event, event->name, sizeof(event->name));
if (rule->string_escape == ESCAPE_UNSET ||
rule->string_escape == ESCAPE_REPLACE) {
count = util_replace_chars(event->name, ALLOWED_CHARS_FILE);
~ianmdlvl / elogind.git / blobdiff