#include "path-util.h"
#include "conf-files.h"
#include "strbuf.h"
+#include "strv.h"
+#include "util.h"
#define PREALLOC_TOKEN 2048
};
};
+static const char* const rules_dirs[] = {
+ "/etc/udev/rules.d",
+ "/run/udev/rules.d",
+ UDEVLIBEXECDIR "/rules.d",
+ NULL};
+
struct udev_rules {
struct udev *udev;
- char **dirs;
- usec_t *dirs_ts_usec;
+ usec_t dirs_ts_usec;
int resolve_names;
/* every key in the rules file becomes a token */
unsigned int token_cur;
unsigned int token_max;
- /* all key strings are copied and de-duplicated in a single continous string buffer */
+ /* all key strings are copied and de-duplicated in a single continuous string buffer */
struct strbuf *strbuf;
/* during rule parsing, uid/gid lookup results are cached */
return strbuf_add_string(rules->strbuf, s, strlen(s));
}
-/* KEY=="", KEY!="", KEY+="", KEY="", KEY:="" */
+/* KEY=="", KEY!="", KEY+="", KEY-="", KEY="", KEY:="" */
enum operation_type {
OP_UNSET,
OP_MATCH_MAX,
OP_ADD,
+ OP_REMOVE,
OP_ASSIGN,
OP_ASSIGN_FINAL,
};
TK_M_PARENTS_MAX,
TK_M_TEST, /* val, mode_t */
- TK_M_EVENT_TIMEOUT, /* int */
TK_M_PROGRAM, /* val */
TK_M_IMPORT_FILE, /* val */
TK_M_IMPORT_PROG, /* val */
TK_A_OWNER_ID, /* uid_t */
TK_A_GROUP_ID, /* gid_t */
TK_A_MODE_ID, /* mode_t */
+ TK_A_TAG, /* val */
TK_A_STATIC_NODE, /* val */
+ TK_A_SECLABEL, /* val, attr */
TK_A_ENV, /* val, attr */
- TK_A_TAG, /* val */
TK_A_NAME, /* val */
TK_A_DEVLINK, /* val */
TK_A_ATTR, /* val, attr */
uid_t uid;
gid_t gid;
int devlink_prio;
- int event_timeout;
int watch;
enum udev_builtin_cmd builtin_cmd;
};
};
#ifdef DEBUG
-static const char *operation_str(enum operation_type type)
-{
+static const char *operation_str(enum operation_type type) {
static const char *operation_strs[] = {
[OP_UNSET] = "UNSET",
[OP_MATCH] = "match",
[OP_MATCH_MAX] = "MATCH_MAX",
[OP_ADD] = "add",
+ [OP_REMOVE] = "remove",
[OP_ASSIGN] = "assign",
[OP_ASSIGN_FINAL] = "assign-final",
} ;
return operation_strs[type];
}
-static const char *string_glob_str(enum string_glob_type type)
-{
+static const char *string_glob_str(enum string_glob_type type) {
static const char *string_glob_strs[] = {
[GL_UNSET] = "UNSET",
[GL_PLAIN] = "plain",
return string_glob_strs[type];
}
-static const char *token_str(enum token_type type)
-{
+static const char *token_str(enum token_type type) {
static const char *token_strs[] = {
[TK_UNSET] = "UNSET",
[TK_RULE] = "RULE",
[TK_M_PARENTS_MAX] = "M PARENTS_MAX",
[TK_M_TEST] = "M TEST",
- [TK_M_EVENT_TIMEOUT] = "M EVENT_TIMEOUT",
[TK_M_PROGRAM] = "M PROGRAM",
[TK_M_IMPORT_FILE] = "M IMPORT_FILE",
[TK_M_IMPORT_PROG] = "M IMPORT_PROG",
[TK_A_OWNER_ID] = "A OWNER_ID",
[TK_A_GROUP_ID] = "A GROUP_ID",
[TK_A_STATIC_NODE] = "A STATIC_NODE",
+ [TK_A_SECLABEL] = "A SECLABEL",
[TK_A_MODE_ID] = "A MODE_ID",
[TK_A_ENV] = "A ENV",
[TK_A_TAG] = "A ENV",
return token_strs[type];
}
-static void dump_token(struct udev_rules *rules, struct token *token)
-{
+static void dump_token(struct udev_rules *rules, struct token *token) {
enum token_type type = token->type;
enum operation_type op = token->key.op;
enum string_glob_type glob = token->key.glob;
const char *tk_ptr = (char *)token;
unsigned int idx = (tk_ptr - tks_ptr) / sizeof(struct token);
- log_debug("* RULE %s:%u, token: %u, count: %u, label: '%s'\n",
+ log_debug("* RULE %s:%u, token: %u, count: %u, label: '%s'",
&rules->buf[token->rule.filename_off], token->rule.filename_line,
idx, token->rule.token_count,
&rules->buf[token->rule.label_off]);
case TK_A_MODE:
case TK_A_RUN_BUILTIN:
case TK_A_RUN_PROGRAM:
- log_debug("%s %s '%s'(%s)\n",
+ log_debug("%s %s '%s'(%s)",
token_str(type), operation_str(op), value, string_glob_str(glob));
break;
case TK_M_IMPORT_BUILTIN:
- log_debug("%s %i '%s'\n", token_str(type), token->key.builtin_cmd, value);
+ log_debug("%s %i '%s'", token_str(type), token->key.builtin_cmd, value);
break;
case TK_M_ATTR:
case TK_M_ATTRS:
case TK_M_ENV:
case TK_A_ATTR:
case TK_A_ENV:
- log_debug("%s %s '%s' '%s'(%s)\n",
+ log_debug("%s %s '%s' '%s'(%s)",
token_str(type), operation_str(op), attr, value, string_glob_str(glob));
break;
case TK_M_TAG:
case TK_A_TAG:
- log_debug("%s %s '%s'\n", token_str(type), operation_str(op), value);
+ log_debug("%s %s '%s'", token_str(type), operation_str(op), value);
break;
case TK_A_STRING_ESCAPE_NONE:
case TK_A_STRING_ESCAPE_REPLACE:
case TK_A_DB_PERSIST:
- log_debug("%s\n", token_str(type));
+ log_debug("%s", token_str(type));
break;
case TK_M_TEST:
- log_debug("%s %s '%s'(%s) %#o\n",
+ log_debug("%s %s '%s'(%s) %#o",
token_str(type), operation_str(op), value, string_glob_str(glob), token->key.mode);
break;
case TK_A_INOTIFY_WATCH:
- log_debug("%s %u\n", token_str(type), token->key.watch);
+ log_debug("%s %u", token_str(type), token->key.watch);
break;
case TK_A_DEVLINK_PRIO:
- log_debug("%s %u\n", token_str(type), token->key.devlink_prio);
+ log_debug("%s %u", token_str(type), token->key.devlink_prio);
break;
case TK_A_OWNER_ID:
- log_debug("%s %s %u\n", token_str(type), operation_str(op), token->key.uid);
+ log_debug("%s %s %u", token_str(type), operation_str(op), token->key.uid);
break;
case TK_A_GROUP_ID:
- log_debug("%s %s %u\n", token_str(type), operation_str(op), token->key.gid);
+ log_debug("%s %s %u", token_str(type), operation_str(op), token->key.gid);
break;
case TK_A_MODE_ID:
- log_debug("%s %s %#o\n", token_str(type), operation_str(op), token->key.mode);
+ log_debug("%s %s %#o", token_str(type), operation_str(op), token->key.mode);
break;
case TK_A_STATIC_NODE:
- log_debug("%s '%s'\n", token_str(type), value);
+ log_debug("%s '%s'", token_str(type), value);
break;
- case TK_M_EVENT_TIMEOUT:
- log_debug("%s %u\n", token_str(type), token->key.event_timeout);
+ case TK_A_SECLABEL:
+ log_debug("%s %s '%s' '%s'", token_str(type), operation_str(op), attr, value);
break;
case TK_A_GOTO:
- log_debug("%s '%s' %u\n", token_str(type), value, token->key.rule_goto);
+ log_debug("%s '%s' %u", token_str(type), value, token->key.rule_goto);
break;
case TK_END:
- log_debug("* %s\n", token_str(type));
+ log_debug("* %s", token_str(type));
break;
case TK_M_PARENTS_MIN:
case TK_M_PARENTS_MAX:
case TK_M_MAX:
case TK_UNSET:
- log_debug("unknown type %u\n", type);
+ log_debug("unknown type %u", type);
break;
}
}
-static void dump_rules(struct udev_rules *rules)
-{
+static void dump_rules(struct udev_rules *rules) {
unsigned int i;
- log_debug("dumping %u (%zu bytes) tokens, %u (%zu bytes) strings\n",
+ log_debug("dumping %u (%zu bytes) tokens, %u (%zu bytes) strings",
rules->token_cur,
rules->token_cur * sizeof(struct token),
rules->buf_count,
rules->buf_cur);
- for(i = 0; i < rules->token_cur; i++)
+ for (i = 0; i < rules->token_cur; i++)
dump_token(rules, &rules->tokens[i]);
}
#else
-static inline const char *operation_str(enum operation_type type) { return NULL; }
-static inline const char *token_str(enum token_type type) { return NULL; }
static inline void dump_token(struct udev_rules *rules, struct token *token) {}
static inline void dump_rules(struct udev_rules *rules) {}
#endif /* DEBUG */
-static int add_token(struct udev_rules *rules, struct token *token)
-{
+static int add_token(struct udev_rules *rules, struct token *token) {
/* grow buffer if needed */
if (rules->token_cur+1 >= rules->token_max) {
struct token *tokens;
return 0;
}
-static uid_t add_uid(struct udev_rules *rules, const char *owner)
-{
+static uid_t add_uid(struct udev_rules *rules, const char *owner) {
unsigned int i;
- uid_t uid;
+ uid_t uid = 0;
unsigned int off;
+ int r;
/* lookup, if we know it already */
for (i = 0; i < rules->uids_cur; i++) {
return uid;
}
}
- uid = util_lookup_user(rules->udev, owner);
+ r = get_user_creds(&owner, &uid, NULL, NULL, NULL);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error("specified user '%s' unknown", owner);
+ else
+ log_error_errno(r, "error resolving user '%s': %m", owner);
+ }
/* grow buffer if needed */
if (rules->uids_cur+1 >= rules->uids_max) {
return uid;
}
-static gid_t add_gid(struct udev_rules *rules, const char *group)
-{
+static gid_t add_gid(struct udev_rules *rules, const char *group) {
unsigned int i;
- gid_t gid;
+ gid_t gid = 0;
unsigned int off;
+ int r;
/* lookup, if we know it already */
for (i = 0; i < rules->gids_cur; i++) {
return gid;
}
}
- gid = util_lookup_group(rules->udev, group);
+ r = get_group_creds(&group, &gid);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error("specified group '%s' unknown", group);
+ else
+ log_error_errno(r, "error resolving group '%s': %m", group);
+ }
/* grow buffer if needed */
if (rules->gids_cur+1 >= rules->gids_max) {
return gid;
}
-static int import_property_from_string(struct udev_device *dev, char *line)
-{
+static int import_property_from_string(struct udev_device *dev, char *line) {
char *key;
char *val;
size_t len;
/* unquote */
if (val[0] == '"' || val[0] == '\'') {
if (val[len-1] != val[0]) {
- log_debug("inconsistent quoting: '%s', skip\n", line);
+ log_debug("inconsistent quoting: '%s', skip", line);
return -1;
}
val[len-1] = '\0';
val++;
}
- /* handle device, renamed by external tool, returning new path */
- if (streq(key, "DEVPATH")) {
- char syspath[UTIL_PATH_SIZE];
-
- log_debug("updating devpath from '%s' to '%s'\n",
- udev_device_get_devpath(dev), val);
- util_strscpyl(syspath, sizeof(syspath), "/sys", val, NULL);
- udev_device_set_syspath(dev, syspath);
- } else {
- struct udev_list_entry *entry;
-
- entry = udev_device_add_property(dev, key, val);
- /* store in db, skip private keys */
- if (key[0] != '.')
- udev_list_entry_set_num(entry, true);
- }
+ udev_device_add_property(dev, key, val);
+
return 0;
}
-static int import_file_into_properties(struct udev_device *dev, const char *filename)
-{
+static int import_file_into_properties(struct udev_device *dev, const char *filename) {
FILE *f;
char line[UTIL_LINE_SIZE];
return 0;
}
-static int import_program_into_properties(struct udev_event *event, const char *program, const sigset_t *sigmask)
-{
+static int import_program_into_properties(struct udev_event *event,
+ usec_t timeout_usec,
+ usec_t timeout_warn_usec,
+ const char *program, const sigset_t *sigmask) {
struct udev_device *dev = event->dev;
char **envp;
char result[UTIL_LINE_SIZE];
int err;
envp = udev_device_get_properties_envp(dev);
- err = udev_event_spawn(event, program, envp, sigmask, result, sizeof(result));
+ err = udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, sigmask, result, sizeof(result));
if (err < 0)
return err;
return 0;
}
-static int import_parent_into_properties(struct udev_device *dev, const char *filter)
-{
+static int import_parent_into_properties(struct udev_device *dev, const char *filter) {
struct udev_device *dev_parent;
struct udev_list_entry *list_entry;
const char *val = udev_list_entry_get_value(list_entry);
if (fnmatch(filter, key, 0) == 0) {
- struct udev_list_entry *entry;
-
- entry = udev_device_add_property(dev, key, val);
- /* store in db, skip private keys */
- if (key[0] != '.')
- udev_list_entry_set_num(entry, true);
+ udev_device_add_property(dev, key, val);
}
}
return 0;
}
#define WAIT_LOOP_PER_SECOND 50
-static int wait_for_file(struct udev_device *dev, const char *file, int timeout)
-{
+static int wait_for_file(struct udev_device *dev, const char *file, int timeout) {
char filepath[UTIL_PATH_SIZE];
char devicepath[UTIL_PATH_SIZE];
struct stat stats;
/* a relative path is a device attribute */
devicepath[0] = '\0';
if (file[0] != '/') {
- util_strscpyl(devicepath, sizeof(devicepath), udev_device_get_syspath(dev), NULL);
- util_strscpyl(filepath, sizeof(filepath), devicepath, "/", file, NULL);
+ strscpyl(devicepath, sizeof(devicepath), udev_device_get_syspath(dev), NULL);
+ strscpyl(filepath, sizeof(filepath), devicepath, "/", file, NULL);
file = filepath;
}
/* lookup file */
if (stat(file, &stats) == 0) {
- log_debug("file '%s' appeared after %i loops\n", file, (timeout * WAIT_LOOP_PER_SECOND) - loop-1);
+ log_debug("file '%s' appeared after %i loops", file, (timeout * WAIT_LOOP_PER_SECOND) - loop-1);
return 0;
}
/* make sure, the device did not disappear in the meantime */
if (devicepath[0] != '\0' && stat(devicepath, &stats) != 0) {
- log_debug("device disappeared while waiting for '%s'\n", file);
+ log_debug("device disappeared while waiting for '%s'", file);
return -2;
}
- log_debug("wait for '%s' for %i mseconds\n", file, 1000 / WAIT_LOOP_PER_SECOND);
+ log_debug("wait for '%s' for %i mseconds", file, 1000 / WAIT_LOOP_PER_SECOND);
nanosleep(&duration, NULL);
}
- log_debug("waiting for '%s' failed\n", file);
+ log_debug("waiting for '%s' failed", file);
return -1;
}
-static int attr_subst_subdir(char *attr, size_t len)
-{
+static int attr_subst_subdir(char *attr, size_t len) {
bool found = false;
if (strstr(attr, "/*/")) {
const char *tail;
DIR *dir;
- util_strscpy(dirname, sizeof(dirname), attr);
+ strscpy(dirname, sizeof(dirname), attr);
pos = strstr(dirname, "/*/");
if (pos == NULL)
return -1;
if (dent->d_name[0] == '.')
continue;
- util_strscpyl(attr, len, dirname, "/", dent->d_name, tail, NULL);
+ strscpyl(attr, len, dirname, "/", dent->d_name, tail, NULL);
if (stat(attr, &stats) == 0) {
found = true;
break;
return found;
}
-static int get_key(struct udev *udev, char **line, char **key, enum operation_type *op, char **value)
-{
+static int get_key(struct udev *udev, char **line, char **key, enum operation_type *op, char **value) {
char *linepos;
char *temp;
break;
if (linepos[0] == '=')
break;
- if ((linepos[0] == '+') || (linepos[0] == '!') || (linepos[0] == ':'))
+ if ((linepos[0] == '+') || (linepos[0] == '-') || (linepos[0] == '!') || (linepos[0] == ':'))
if (linepos[1] == '=')
break;
}
} else if (linepos[0] == '+' && linepos[1] == '=') {
*op = OP_ADD;
linepos += 2;
+ } else if (linepos[0] == '-' && linepos[1] == '=') {
+ *op = OP_REMOVE;
+ linepos += 2;
} else if (linepos[0] == '=') {
*op = OP_ASSIGN;
linepos++;
}
/* extract possible KEY{attr} */
-static const char *get_key_attribute(struct udev *udev, char *str)
-{
+static const char *get_key_attribute(struct udev *udev, char *str) {
char *pos;
char *attr;
attr++;
pos = strchr(attr, '}');
if (pos == NULL) {
- log_error("missing closing brace for format\n");
+ log_error("missing closing brace for format");
return NULL;
}
pos[0] = '\0';
static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
enum operation_type op,
- const char *value, const void *data)
-{
+ const char *value, const void *data) {
struct token *token = &rule_tmp->token[rule_tmp->token_cur];
const char *attr = NULL;
- memset(token, 0x00, sizeof(struct token));
+ memzero(token, sizeof(struct token));
switch (type) {
case TK_M_ACTION:
case TK_A_GOTO:
case TK_M_TAG:
case TK_A_TAG:
+ case TK_A_STATIC_NODE:
token->key.value_off = rules_add_string(rule_tmp->rules, value);
break;
case TK_M_IMPORT_BUILTIN:
case TK_M_ATTRS:
case TK_A_ATTR:
case TK_A_ENV:
+ case TK_A_SECLABEL:
attr = data;
token->key.value_off = rules_add_string(rule_tmp->rules, value);
token->key.attr_off = rules_add_string(rule_tmp->rules, attr);
case TK_A_MODE_ID:
token->key.mode = *(mode_t *)data;
break;
- case TK_A_STATIC_NODE:
- token->key.value_off = rules_add_string(rule_tmp->rules, value);
- break;
- case TK_M_EVENT_TIMEOUT:
- token->key.event_timeout = *(int *)data;
- break;
case TK_RULE:
case TK_M_PARENTS_MIN:
case TK_M_PARENTS_MAX:
case TK_M_MAX:
case TK_END:
case TK_UNSET:
- log_error("wrong type %u\n", type);
+ log_error("wrong type %u", type);
return -1;
}
int has_glob;
has_split = (strchr(value, '|') != NULL);
- has_glob = (strchr(value, '*') != NULL || strchr(value, '?') != NULL || strchr(value, '[') != NULL);
+ has_glob = string_is_glob(value);
if (has_split && has_glob) {
glob = GL_SPLIT_GLOB;
} else if (has_split) {
}
if (attr != NULL) {
- /* check if property/attribut name has substitution chars */
+ /* check if property/attribute name has substitution chars */
if (attr[0] == '[')
token->key.attrsubst = SB_SUBSYS;
else if (strchr(attr, '%') != NULL || strchr(attr, '$') != NULL)
token->key.op = op;
rule_tmp->token_cur++;
if (rule_tmp->token_cur >= ELEMENTSOF(rule_tmp->token)) {
- log_error("temporary rule array too small\n");
+ log_error("temporary rule array too small");
return -1;
}
return 0;
}
-static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp)
-{
+static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp) {
unsigned int i;
unsigned int start = 0;
unsigned int end = rule_tmp->token_cur;
}
static int add_rule(struct udev_rules *rules, char *line,
- const char *filename, unsigned int filename_off, unsigned int lineno)
-{
+ const char *filename, unsigned int filename_off, unsigned int lineno) {
char *linepos;
const char *attr;
- struct rule_tmp rule_tmp;
+ struct rule_tmp rule_tmp = {
+ .rules = rules,
+ .rule.type = TK_RULE,
+ };
- memset(&rule_tmp, 0x00, sizeof(struct rule_tmp));
- rule_tmp.rules = rules;
- rule_tmp.rule.type = TK_RULE;
/* the offset in the rule is limited to unsigned short */
if (filename_off < USHRT_MAX)
rule_tmp.rule.rule.filename_off = filename_off;
char *value;
enum operation_type op;
- if (get_key(rules->udev, &linepos, &key, &op, &value) != 0)
+ if (get_key(rules->udev, &linepos, &key, &op, &value) != 0) {
+ /* Avoid erroring on trailing whitespace. This is probably rare
+ * so save the work for the error case instead of always trying
+ * to strip the trailing whitespace with strstrip(). */
+ while (isblank(*linepos))
+ linepos++;
+
+ /* If we aren't at the end of the line, this is a parsing error.
+ * Make a best effort to describe where the problem is. */
+ if (!strchr(NEWLINE, *linepos)) {
+ char buf[2] = {*linepos};
+ _cleanup_free_ char *tmp;
+
+ tmp = cescape(buf);
+ log_error("invalid key/value pair in file %s on line %u, starting at character %tu ('%s')",
+ filename, lineno, linepos - line + 1, tmp);
+ if (*linepos == '#')
+ log_error("hint: comments can only start at beginning of line");
+ }
break;
+ }
if (streq(key, "ACTION")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid ACTION operation\n");
+ log_error("invalid ACTION operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_ACTION, op, value, NULL);
if (streq(key, "DEVPATH")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid DEVPATH operation\n");
+ log_error("invalid DEVPATH operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_DEVPATH, op, value, NULL);
if (streq(key, "KERNEL")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid KERNEL operation\n");
+ log_error("invalid KERNEL operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_KERNEL, op, value, NULL);
if (streq(key, "SUBSYSTEM")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid SUBSYSTEM operation\n");
+ log_error("invalid SUBSYSTEM operation");
goto invalid;
}
/* bus, class, subsystem events should all be the same */
streq(value, "bus") ||
streq(value, "class")) {
if (streq(value, "bus") || streq(value, "class"))
- log_error("'%s' must be specified as 'subsystem' \n"
+ log_error("'%s' must be specified as 'subsystem' "
"please fix it in %s:%u", value, filename, lineno);
rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, "subsystem|class|bus", NULL);
} else
if (streq(key, "DRIVER")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid DRIVER operation\n");
+ log_error("invalid DRIVER operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_DRIVER, op, value, NULL);
}
if (startswith(key, "ATTR{")) {
- attr = get_key_attribute(rules->udev, key + sizeof("ATTR")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("ATTR"));
if (attr == NULL) {
- log_error("error parsing ATTR attribute\n");
+ log_error("error parsing ATTR attribute");
+ goto invalid;
+ }
+ if (op == OP_REMOVE) {
+ log_error("invalid ATTR operation");
goto invalid;
}
if (op < OP_MATCH_MAX) {
continue;
}
+ if (startswith(key, "SECLABEL{")) {
+ attr = get_key_attribute(rules->udev, key + strlen("SECLABEL"));
+ if (!attr) {
+ log_error("error parsing SECLABEL attribute");
+ goto invalid;
+ }
+ if (op == OP_REMOVE) {
+ log_error("invalid SECLABEL operation");
+ goto invalid;
+ }
+
+ rule_add_key(&rule_tmp, TK_A_SECLABEL, op, value, attr);
+ continue;
+ }
+
if (streq(key, "KERNELS")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid KERNELS operation\n");
+ log_error("invalid KERNELS operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL);
if (streq(key, "SUBSYSTEMS")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid SUBSYSTEMS operation\n");
+ log_error("invalid SUBSYSTEMS operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL);
if (streq(key, "DRIVERS")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid DRIVERS operation\n");
+ log_error("invalid DRIVERS operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_DRIVERS, op, value, NULL);
if (startswith(key, "ATTRS{")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid ATTRS operation\n");
+ log_error("invalid ATTRS operation");
goto invalid;
}
- attr = get_key_attribute(rules->udev, key + sizeof("ATTRS")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("ATTRS"));
if (attr == NULL) {
- log_error("error parsing ATTRS attribute\n");
+ log_error("error parsing ATTRS attribute");
goto invalid;
}
if (startswith(attr, "device/"))
if (streq(key, "TAGS")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid TAGS operation\n");
+ log_error("invalid TAGS operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_TAGS, op, value, NULL);
}
if (startswith(key, "ENV{")) {
- attr = get_key_attribute(rules->udev, key + sizeof("ENV")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("ENV"));
if (attr == NULL) {
- log_error("error parsing ENV attribute\n");
+ log_error("error parsing ENV attribute");
+ goto invalid;
+ }
+ if (op == OP_REMOVE) {
+ log_error("invalid ENV operation");
goto invalid;
}
if (op < OP_MATCH_MAX) {
for (i = 0; i < ELEMENTSOF(blacklist); i++) {
if (!streq(attr, blacklist[i]))
continue;
- log_error("invalid ENV attribute, '%s' can not be set %s:%u\n", attr, filename, lineno);
+ log_error("invalid ENV attribute, '%s' can not be set %s:%u", attr, filename, lineno);
goto invalid;
}
if (rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr) != 0)
}
if (streq(key, "PROGRAM")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid PROGRAM operation");
+ goto invalid;
+ }
rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL);
continue;
}
if (streq(key, "RESULT")) {
if (op > OP_MATCH_MAX) {
- log_error("invalid RESULT operation\n");
+ log_error("invalid RESULT operation");
goto invalid;
}
rule_add_key(&rule_tmp, TK_M_RESULT, op, value, NULL);
}
if (startswith(key, "IMPORT")) {
- attr = get_key_attribute(rules->udev, key + sizeof("IMPORT")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("IMPORT"));
if (attr == NULL) {
- log_error("IMPORT{} type missing, ignoring IMPORT %s:%u\n", filename, lineno);
+ log_error("IMPORT{} type missing, ignoring IMPORT %s:%u", filename, lineno);
continue;
}
+ if (op == OP_REMOVE) {
+ log_error("invalid IMPORT operation");
+ goto invalid;
+ }
if (streq(attr, "program")) {
/* find known built-in command */
if (value[0] != '/') {
cmd = udev_builtin_lookup(value);
if (cmd < UDEV_BUILTIN_MAX) {
- log_debug("IMPORT found builtin '%s', replacing %s:%u\n",
+ log_debug("IMPORT found builtin '%s', replacing %s:%u",
value, filename, lineno);
rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
continue;
if (cmd < UDEV_BUILTIN_MAX)
rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
else
- log_error("IMPORT{builtin}: '%s' unknown %s:%u\n", value, filename, lineno);
+ log_error("IMPORT{builtin}: '%s' unknown %s:%u", value, filename, lineno);
} else if (streq(attr, "file")) {
rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
} else if (streq(attr, "db")) {
} else if (streq(attr, "parent")) {
rule_add_key(&rule_tmp, TK_M_IMPORT_PARENT, op, value, NULL);
} else
- log_error("IMPORT{} unknown type, ignoring IMPORT %s:%u\n", filename, lineno);
+ log_error("IMPORT{} unknown type, ignoring IMPORT %s:%u", filename, lineno);
continue;
}
mode_t mode = 0;
if (op > OP_MATCH_MAX) {
- log_error("invalid TEST operation\n");
+ log_error("invalid TEST operation");
goto invalid;
}
- attr = get_key_attribute(rules->udev, key + sizeof("TEST")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("TEST"));
if (attr != NULL) {
mode = strtol(attr, NULL, 8);
rule_add_key(&rule_tmp, TK_M_TEST, op, value, &mode);
}
if (startswith(key, "RUN")) {
- attr = get_key_attribute(rules->udev, key + sizeof("RUN")-1);
+ attr = get_key_attribute(rules->udev, key + strlen("RUN"));
if (attr == NULL)
attr = "program";
+ if (op == OP_REMOVE) {
+ log_error("invalid RUN operation");
+ goto invalid;
+ }
if (streq(attr, "builtin")) {
enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
if (cmd < UDEV_BUILTIN_MAX)
rule_add_key(&rule_tmp, TK_A_RUN_BUILTIN, op, value, &cmd);
else
- log_error("IMPORT{builtin}: '%s' unknown %s:%u\n", value, filename, lineno);
+ log_error("RUN{builtin}: '%s' unknown %s:%u", value, filename, lineno);
} else if (streq(attr, "program")) {
enum udev_builtin_cmd cmd = UDEV_BUILTIN_MAX;
rule_add_key(&rule_tmp, TK_A_RUN_PROGRAM, op, value, &cmd);
} else {
- log_error("RUN{} unknown type, ignoring RUN %s:%u\n", filename, lineno);
+ log_error("RUN{} unknown type, ignoring RUN %s:%u", filename, lineno);
}
continue;
}
if (streq(key, "WAIT_FOR") || streq(key, "WAIT_FOR_SYSFS")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid WAIT_FOR/WAIT_FOR_SYSFS operation");
+ goto invalid;
+ }
rule_add_key(&rule_tmp, TK_M_WAITFOR, 0, value, NULL);
continue;
}
if (streq(key, "LABEL")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid LABEL operation");
+ goto invalid;
+ }
rule_tmp.rule.rule.label_off = rules_add_string(rules, value);
continue;
}
if (streq(key, "GOTO")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid GOTO operation");
+ goto invalid;
+ }
rule_add_key(&rule_tmp, TK_A_GOTO, 0, value, NULL);
continue;
}
if (startswith(key, "NAME")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid NAME operation");
+ goto invalid;
+ }
if (op < OP_MATCH_MAX) {
rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL);
} else {
}
if (streq(key, "SYMLINK")) {
+ if (op == OP_REMOVE) {
+ log_error("invalid SYMLINK operation");
+ goto invalid;
+ }
if (op < OP_MATCH_MAX)
rule_add_key(&rule_tmp, TK_M_DEVLINK, op, value, NULL);
else
uid_t uid;
char *endptr;
+ if (op == OP_REMOVE) {
+ log_error("invalid OWNER operation");
+ goto invalid;
+ }
+
uid = strtoul(value, &endptr, 10);
if (endptr[0] == '\0') {
rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
gid_t gid;
char *endptr;
+ if (op == OP_REMOVE) {
+ log_error("invalid GROUP operation");
+ goto invalid;
+ }
+
gid = strtoul(value, &endptr, 10);
if (endptr[0] == '\0') {
rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
mode_t mode;
char *endptr;
+ if (op == OP_REMOVE) {
+ log_error("invalid MODE operation");
+ goto invalid;
+ }
+
mode = strtol(value, &endptr, 8);
if (endptr[0] == '\0')
rule_add_key(&rule_tmp, TK_A_MODE_ID, op, NULL, &mode);
if (streq(key, "OPTIONS")) {
const char *pos;
+ if (op == OP_REMOVE) {
+ log_error("invalid OPTIONS operation");
+ goto invalid;
+ }
+
pos = strstr(value, "link_priority=");
if (pos != NULL) {
int prio = atoi(&pos[strlen("link_priority=")]);
rule_add_key(&rule_tmp, TK_A_DEVLINK_PRIO, op, NULL, &prio);
}
- pos = strstr(value, "event_timeout=");
- if (pos != NULL) {
- int tout = atoi(&pos[strlen("event_timeout=")]);
-
- rule_add_key(&rule_tmp, TK_M_EVENT_TIMEOUT, op, NULL, &tout);
- }
-
pos = strstr(value, "string_escape=");
if (pos != NULL) {
pos = &pos[strlen("string_escape=")];
continue;
}
- log_error("unknown key '%s' in %s:%u\n", key, filename, lineno);
+ log_error("unknown key '%s' in %s:%u", key, filename, lineno);
goto invalid;
}
return 0;
invalid:
- log_error("invalid rule '%s:%u'\n", filename, lineno);
+ log_error("invalid rule '%s:%u'", filename, lineno);
return -1;
}
-static int parse_file(struct udev_rules *rules, const char *filename)
-{
- FILE *f;
+static int parse_file(struct udev_rules *rules, const char *filename) {
+ _cleanup_fclose_ FILE *f = NULL;
unsigned int first_token;
unsigned int filename_off;
char line[UTIL_LINE_SIZE];
int line_nr = 0;
unsigned int i;
- if (null_or_empty_path(filename)) {
- log_debug("skip empty file: %s\n", filename);
- return 0;
+ f = fopen(filename, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+ else
+ return -errno;
}
- log_debug("read rules file: %s\n", filename);
- f = fopen(filename, "re");
- if (f == NULL)
- return -1;
+ if (null_or_empty_fd(fileno(f))) {
+ log_debug("Skipping empty file: %s", filename);
+ return 0;
+ } else
+ log_debug("Reading rules file: %s", filename);
first_token = rules->token_cur;
filename_off = rules_add_string(rules, filename);
}
if (len+1 >= sizeof(line)) {
- log_error("line too long '%s':%u, ignored\n", filename, line_nr);
+ log_error("line too long '%s':%u, ignored", filename, line_nr);
continue;
}
add_rule(rules, key, filename, filename_off, line_nr);
}
- fclose(f);
/* link GOTOs to LABEL rules in this file to be able to fast-forward */
for (i = first_token+1; i < rules->token_cur; i++) {
break;
}
if (rules->tokens[i].key.rule_goto == 0)
- log_error("GOTO '%s' has no matching label in: '%s'\n", label, filename);
+ log_error("GOTO '%s' has no matching label in: '%s'", label, filename);
}
}
return 0;
}
-struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names)
-{
+struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names) {
struct udev_rules *rules;
struct udev_list file_list;
struct token end_token;
char **files, **f;
int r;
- rules = calloc(1, sizeof(struct udev_rules));
+ rules = new0(struct udev_rules, 1);
if (rules == NULL)
return NULL;
rules->udev = udev;
if (!rules->strbuf)
return udev_rules_unref(rules);
- rules->dirs = strv_new("/etc/udev/rules.d",
- "/run/udev/rules.d",
- UDEVLIBEXECDIR "/rules.d",
- NULL);
- if (!rules->dirs) {
- log_error("failed to build config directory array");
- return udev_rules_unref(rules);
- }
- if (!path_strv_canonicalize(rules->dirs)) {
- log_error("failed to canonicalize config directories\n");
- return udev_rules_unref(rules);
- }
- strv_uniq(rules->dirs);
-
- rules->dirs_ts_usec = calloc(strv_length(rules->dirs), sizeof(long long));
- if(!rules->dirs_ts_usec)
- return udev_rules_unref(rules);
udev_rules_check_timestamp(rules);
- r = conf_files_list_strv(&files, ".rules", (const char **)rules->dirs);
+ r = conf_files_list_strv(&files, ".rules", NULL, rules_dirs);
if (r < 0) {
- log_error("failed to enumerate rules files: %s\n", strerror(-r));
+ log_error_errno(r, "failed to enumerate rules files: %m");
return udev_rules_unref(rules);
}
strv_free(files);
- memset(&end_token, 0x00, sizeof(struct token));
+ memzero(&end_token, sizeof(struct token));
end_token.type = TK_END;
add_token(rules, &end_token);
- log_debug("rules contain %zu bytes tokens (%u * %zu bytes), %zu bytes strings\n",
+ log_debug("rules contain %zu bytes tokens (%u * %zu bytes), %zu bytes strings",
rules->token_max * sizeof(struct token), rules->token_max, sizeof(struct token), rules->strbuf->len);
/* cleanup temporary strbuf data */
- log_debug("%zu strings (%zu bytes), %zu de-duplicated (%zu bytes), %zu trie nodes used\n",
+ log_debug("%zu strings (%zu bytes), %zu de-duplicated (%zu bytes), %zu trie nodes used",
rules->strbuf->in_count, rules->strbuf->in_len,
rules->strbuf->dedup_count, rules->strbuf->dedup_len, rules->strbuf->nodes_count);
strbuf_complete(rules->strbuf);
return rules;
}
-struct udev_rules *udev_rules_unref(struct udev_rules *rules)
-{
+struct udev_rules *udev_rules_unref(struct udev_rules *rules) {
if (rules == NULL)
return NULL;
free(rules->tokens);
strbuf_cleanup(rules->strbuf);
free(rules->uids);
free(rules->gids);
- strv_free(rules->dirs);
- free(rules->dirs_ts_usec);
free(rules);
return NULL;
}
-bool udev_rules_check_timestamp(struct udev_rules *rules)
-{
- unsigned int i;
- bool changed = false;
-
- if (rules == NULL)
- goto out;
-
- for (i = 0; rules->dirs[i]; i++) {
- struct stat stats;
+bool udev_rules_check_timestamp(struct udev_rules *rules) {
+ if (!rules)
+ return false;
- if (stat(rules->dirs[i], &stats) < 0)
- continue;
-
- if (rules->dirs_ts_usec[i] == timespec_load(&stats.st_mtim))
- continue;
-
- /* first check */
- if (rules->dirs_ts_usec[i] != 0) {
- log_debug("reload - timestamp of '%s' changed\n", rules->dirs[i]);
- changed = true;
- }
-
- /* update timestamp */
- rules->dirs_ts_usec[i] = timespec_load(&stats.st_mtim);
- }
-out:
- return changed;
+ return paths_check_timestamp(rules_dirs, &rules->dirs_ts_usec, true);
}
-static int match_key(struct udev_rules *rules, struct token *token, const char *val)
-{
+static int match_key(struct udev_rules *rules, struct token *token, const char *val) {
char *key_value = rules_str(rules, token->key.value_off);
char *pos;
bool match = false;
if (next != NULL) {
size_t matchlen = (size_t)(next - s);
- match = (matchlen == len && strncmp(s, val, matchlen) == 0);
+ match = (matchlen == len && strneq(s, val, matchlen));
if (match)
break;
} else {
{
char value[UTIL_PATH_SIZE];
- util_strscpy(value, sizeof(value), rules_str(rules, token->key.value_off));
+ strscpy(value, sizeof(value), rules_str(rules, token->key.value_off));
key_value = value;
while (key_value != NULL) {
pos = strchr(key_value, '|');
return -1;
}
-static int match_attr(struct udev_rules *rules, struct udev_device *dev, struct udev_event *event, struct token *cur)
-{
+static int match_attr(struct udev_rules *rules, struct udev_device *dev, struct udev_event *event, struct token *cur) {
const char *name;
char nbuf[UTIL_NAME_SIZE];
const char *value;
klen = strlen(key_value);
if (klen > 0 && !isspace(key_value[klen-1])) {
if (value != vbuf) {
- util_strscpy(vbuf, sizeof(vbuf), value);
+ strscpy(vbuf, sizeof(vbuf), value);
value = vbuf;
}
while (len > 0 && isspace(vbuf[--len]))
ESCAPE_REPLACE,
};
-int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event, const sigset_t *sigmask)
-{
+int udev_rules_apply_to_event(struct udev_rules *rules,
+ struct udev_event *event,
+ usec_t timeout_usec,
+ usec_t timeout_warn_usec,
+ struct udev_list *properties_list,
+ const sigset_t *sigmask) {
struct token *cur;
struct token *rule;
enum escape_type esc = ESCAPE_UNSET;
const char *value;
value = udev_device_get_property_value(event->dev, key_name);
- if (value == NULL)
+
+ /* check global properties */
+ if (!value && properties_list) {
+ struct udev_list_entry *list_entry;
+
+ list_entry = udev_list_get_entry(properties_list);
+ list_entry = udev_list_entry_get_by_name(list_entry, key_name);
+ if (list_entry != NULL)
+ value = udev_list_entry_get_value(list_entry);
+ }
+
+ if (!value)
value = "";
if (match_key(rules, cur, value))
goto nomatch;
if (filename[0] != '/') {
char tmp[UTIL_PATH_SIZE];
- util_strscpy(tmp, sizeof(tmp), filename);
- util_strscpyl(filename, sizeof(filename),
+ strscpy(tmp, sizeof(tmp), filename);
+ strscpyl(filename, sizeof(filename),
udev_device_get_syspath(event->dev), "/", tmp, NULL);
}
}
goto nomatch;
break;
}
- case TK_M_EVENT_TIMEOUT:
- log_debug("OPTIONS event_timeout=%u\n", cur->key.event_timeout);
- event->timeout_usec = cur->key.event_timeout * 1000 * 1000;
- break;
case TK_M_PROGRAM: {
char program[UTIL_PATH_SIZE];
char **envp;
- char result[UTIL_PATH_SIZE];
+ char result[UTIL_LINE_SIZE];
free(event->program_result);
event->program_result = NULL;
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), program, sizeof(program));
envp = udev_device_get_properties_envp(event->dev);
- log_debug("PROGRAM '%s' %s:%u\n",
+ log_debug("PROGRAM '%s' %s:%u",
program,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (udev_event_spawn(event, program, envp, sigmask, result, sizeof(result)) < 0) {
+ if (udev_event_spawn(event, timeout_usec, timeout_warn_usec, program, envp, sigmask, result, sizeof(result)) < 0) {
if (cur->key.op != OP_NOMATCH)
goto nomatch;
} else {
if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
count = util_replace_chars(result, UDEV_ALLOWED_CHARS_INPUT);
if (count > 0)
- log_debug("%i character(s) replaced\n" , count);
+ log_debug("%i character(s) replaced" , count);
}
event->program_result = strdup(result);
if (cur->key.op == OP_NOMATCH)
char import[UTIL_PATH_SIZE];
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), import, sizeof(import));
- log_debug("IMPORT '%s' %s:%u\n",
+ log_debug("IMPORT '%s' %s:%u",
import,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (import_program_into_properties(event, import, sigmask) != 0)
+ if (import_program_into_properties(event, timeout_usec, timeout_warn_usec, import, sigmask) != 0)
if (cur->key.op != OP_NOMATCH)
goto nomatch;
break;
if (udev_builtin_run_once(cur->key.builtin_cmd)) {
/* check if we ran already */
if (event->builtin_run & (1 << cur->key.builtin_cmd)) {
- log_debug("IMPORT builtin skip '%s' %s:%u\n",
+ log_debug("IMPORT builtin skip '%s' %s:%u",
udev_builtin_name(cur->key.builtin_cmd),
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
}
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), command, sizeof(command));
- log_debug("IMPORT builtin '%s' %s:%u\n",
+ log_debug("IMPORT builtin '%s' %s:%u",
udev_builtin_name(cur->key.builtin_cmd),
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
if (udev_builtin_run(event->dev, cur->key.builtin_cmd, command, false) != 0) {
/* remember failure */
- log_debug("IMPORT builtin '%s' returned non-zero\n",
+ log_debug("IMPORT builtin '%s' returned non-zero",
udev_builtin_name(cur->key.builtin_cmd));
event->builtin_ret |= (1 << cur->key.builtin_cmd);
if (cur->key.op != OP_NOMATCH)
const char *value;
value = udev_device_get_property_value(event->dev_db, key);
- if (value != NULL) {
- struct udev_list_entry *entry;
-
- entry = udev_device_add_property(event->dev, key, value);
- udev_list_entry_set_num(entry, true);
- } else {
+ if (value != NULL)
+ udev_device_add_property(event->dev, key, value);
+ else {
if (cur->key.op != OP_NOMATCH)
goto nomatch;
}
pos = strstr(cmdline, key);
if (pos != NULL) {
- struct udev_list_entry *entry;
-
pos += strlen(key);
if (pos[0] == '\0' || isspace(pos[0])) {
/* we import simple flags as 'FLAG=1' */
- entry = udev_device_add_property(event->dev, key, "1");
- udev_list_entry_set_num(entry, true);
+ udev_device_add_property(event->dev, key, "1");
imported = true;
} else if (pos[0] == '=') {
const char *value;
while (pos[0] != '\0' && !isspace(pos[0]))
pos++;
pos[0] = '\0';
- entry = udev_device_add_property(event->dev, key, value);
- udev_list_entry_set_num(entry, true);
+ udev_device_add_property(event->dev, key, value);
imported = true;
}
}
break;
case TK_A_OWNER: {
char owner[UTIL_NAME_SIZE];
+ const char *ow = owner;
+ int r;
if (event->owner_final)
break;
event->owner_final = true;
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), owner, sizeof(owner));
event->owner_set = true;
- event->uid = util_lookup_user(event->udev, owner);
- log_debug("OWNER %u %s:%u\n",
+ r = get_user_creds(&ow, &event->uid, NULL, NULL, NULL);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error("specified user '%s' unknown", owner);
+ else
+ log_error_errno(r, "error resolving user '%s': %m", owner);
+
+ event->uid = 0;
+ }
+ log_debug("OWNER %u %s:%u",
event->uid,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
}
case TK_A_GROUP: {
char group[UTIL_NAME_SIZE];
+ const char *gr = group;
+ int r;
if (event->group_final)
break;
event->group_final = true;
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), group, sizeof(group));
event->group_set = true;
- event->gid = util_lookup_group(event->udev, group);
- log_debug("GROUP %u %s:%u\n",
+ r = get_group_creds(&gr, &event->gid);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error("specified group '%s' unknown", group);
+ else
+ log_error_errno(r, "error resolving group '%s': %m", group);
+
+ event->gid = 0;
+ }
+ log_debug("GROUP %u %s:%u",
event->gid,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), mode_str, sizeof(mode_str));
mode = strtol(mode_str, &endptr, 8);
if (endptr[0] != '\0') {
- log_error("ignoring invalid mode '%s'\n", mode_str);
+ log_error("ignoring invalid mode '%s'", mode_str);
break;
}
if (cur->key.op == OP_ASSIGN_FINAL)
event->mode_final = true;
event->mode_set = true;
event->mode = mode;
- log_debug("MODE %#o %s:%u\n",
+ log_debug("MODE %#o %s:%u",
event->mode,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
event->owner_final = true;
event->owner_set = true;
event->uid = cur->key.uid;
- log_debug("OWNER %u %s:%u\n",
+ log_debug("OWNER %u %s:%u",
event->uid,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
event->group_final = true;
event->group_set = true;
event->gid = cur->key.gid;
- log_debug("GROUP %u %s:%u\n",
+ log_debug("GROUP %u %s:%u",
event->gid,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
event->mode_final = true;
event->mode_set = true;
event->mode = cur->key.mode;
- log_debug("MODE %#o %s:%u\n",
+ log_debug("MODE %#o %s:%u",
event->mode,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
break;
+ case TK_A_SECLABEL: {
+ const char *name, *label;
+
+ name = rules_str(rules, cur->key.attr_off);
+ label = rules_str(rules, cur->key.value_off);
+ if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
+ udev_list_cleanup(&event->seclabel_list);
+ udev_list_entry_add(&event->seclabel_list, name, label);
+ log_debug("SECLABEL{%s}='%s' %s:%u",
+ name, label,
+ rules_str(rules, rule->rule.filename_off),
+ rule->rule.filename_line);
+ break;
+ }
case TK_A_ENV: {
const char *name = rules_str(rules, cur->key.attr_off);
char *value = rules_str(rules, cur->key.value_off);
char value_new[UTIL_NAME_SIZE];
const char *value_old = NULL;
- struct udev_list_entry *entry;
if (value[0] == '\0') {
if (cur->key.op == OP_ADD)
/* append value separated by space */
udev_event_apply_format(event, value, temp, sizeof(temp));
- util_strscpyl(value_new, sizeof(value_new), value_old, " ", temp, NULL);
+ strscpyl(value_new, sizeof(value_new), value_old, " ", temp, NULL);
} else
udev_event_apply_format(event, value, value_new, sizeof(value_new));
- entry = udev_device_add_property(event->dev, name, value_new);
- /* store in db, skip private keys */
- if (name[0] != '.')
- udev_list_entry_set_num(entry, true);
+ udev_device_add_property(event->dev, name, value_new);
break;
}
case TK_A_TAG: {
(*p >= '0' && *p <= '9') ||
*p == '-' || *p == '_')
continue;
- log_error("ignoring invalid tag name '%s'\n", tag);
+ log_error("ignoring invalid tag name '%s'", tag);
break;
}
- udev_device_add_tag(event->dev, tag);
+ if (cur->key.op == OP_REMOVE)
+ udev_device_remove_tag(event->dev, tag);
+ else
+ udev_device_add_tag(event->dev, tag);
break;
}
case TK_A_NAME: {
if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
count = util_replace_chars(name_str, "/");
if (count > 0)
- log_debug("%i character(s) replaced\n", count);
+ log_debug("%i character(s) replaced", count);
}
if (major(udev_device_get_devnum(event->dev)) &&
(!streq(name_str, udev_device_get_devnode(event->dev) + strlen("/dev/")))) {
}
free(event->name);
event->name = strdup(name_str);
- log_debug("NAME '%s' %s:%u\n",
+ log_debug("NAME '%s' %s:%u",
event->name,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
else if (esc == ESCAPE_REPLACE)
count = util_replace_chars(temp, "/");
if (count > 0)
- log_debug("%i character(s) replaced\n" , count);
+ log_debug("%i character(s) replaced" , count);
pos = temp;
while (isspace(pos[0]))
pos++;
next = strchr(pos, ' ');
while (next != NULL) {
next[0] = '\0';
- log_debug("LINK '%s' %s:%u\n", pos,
+ log_debug("LINK '%s' %s:%u", pos,
rules_str(rules, rule->rule.filename_off), rule->rule.filename_line);
- util_strscpyl(filename, sizeof(filename), "/dev/", pos, NULL);
+ strscpyl(filename, sizeof(filename), "/dev/", pos, NULL);
udev_device_add_devlink(event->dev, filename);
while (isspace(next[1]))
next++;
next = strchr(pos, ' ');
}
if (pos[0] != '\0') {
- log_debug("LINK '%s' %s:%u\n", pos,
+ log_debug("LINK '%s' %s:%u", pos,
rules_str(rules, rule->rule.filename_off), rule->rule.filename_line);
- util_strscpyl(filename, sizeof(filename), "/dev/", pos, NULL);
+ strscpyl(filename, sizeof(filename), "/dev/", pos, NULL);
udev_device_add_devlink(event->dev, filename);
}
break;
FILE *f;
if (util_resolve_subsys_kernel(event->udev, key_name, attr, sizeof(attr), 0) != 0)
- util_strscpyl(attr, sizeof(attr), udev_device_get_syspath(event->dev), "/", key_name, NULL);
+ strscpyl(attr, sizeof(attr), udev_device_get_syspath(event->dev), "/", key_name, NULL);
attr_subst_subdir(attr, sizeof(attr));
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), value, sizeof(value));
- log_debug("ATTR '%s' writing '%s' %s:%u\n", attr, value,
+ log_debug("ATTR '%s' writing '%s' %s:%u", attr, value,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
f = fopen(attr, "we");
if (f != NULL) {
if (fprintf(f, "%s", value) <= 0)
- log_error("error writing ATTR{%s}: %m\n", attr);
+ log_error_errno(errno, "error writing ATTR{%s}: %m", attr);
fclose(f);
} else {
- log_error("error opening ATTR{%s} for writing: %m\n", attr);
+ log_error_errno(errno, "error opening ATTR{%s} for writing: %m", attr);
}
break;
}
if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
udev_list_cleanup(&event->run_list);
- log_debug("RUN '%s' %s:%u\n",
+ log_debug("RUN '%s' %s:%u",
rules_str(rules, cur->key.value_off),
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
case TK_M_PARENTS_MAX:
case TK_M_MAX:
case TK_UNSET:
- log_error("wrong type %u\n", cur->type);
+ log_error("wrong type %u", cur->type);
goto nomatch;
}
}
}
-void udev_rules_apply_static_dev_perms(struct udev_rules *rules)
-{
+int udev_rules_apply_static_dev_perms(struct udev_rules *rules) {
struct token *cur;
struct token *rule;
uid_t uid = 0;
gid_t gid = 0;
mode_t mode = 0;
+ _cleanup_strv_free_ char **tags = NULL;
+ char **t;
+ FILE *f = NULL;
+ _cleanup_free_ char *path = NULL;
+ int r = 0;
if (rules->tokens == NULL)
- return;
+ return 0;
cur = &rules->tokens[0];
rule = cur;
uid = 0;
gid = 0;
mode = 0;
+ strv_free(tags);
+ tags = NULL;
break;
case TK_A_OWNER_ID:
uid = cur->key.uid;
break;
case TK_A_MODE_ID:
mode = cur->key.mode;
+ break;
+ case TK_A_TAG:
+ r = strv_extend(&tags, rules_str(rules, cur->key.value_off));
+ if (r < 0)
+ goto finish;
+
break;
case TK_A_STATIC_NODE: {
- char filename[UTIL_PATH_SIZE];
+ char device_node[UTIL_PATH_SIZE];
+ char tags_dir[UTIL_PATH_SIZE];
+ char tag_symlink[UTIL_PATH_SIZE];
struct stat stats;
/* we assure, that the permissions tokens are sorted before the static token */
- if (mode == 0 && uid == 0 && gid == 0)
- goto next;
- util_strscpyl(filename, sizeof(filename), "/dev/", rules_str(rules, cur->key.value_off), NULL);
- if (stat(filename, &stats) != 0)
+
+ if (mode == 0 && uid == 0 && gid == 0 && tags == NULL)
goto next;
+
+ strscpyl(device_node, sizeof(device_node), "/dev/", rules_str(rules, cur->key.value_off), NULL);
+ if (stat(device_node, &stats) != 0)
+ break;
if (!S_ISBLK(stats.st_mode) && !S_ISCHR(stats.st_mode))
- goto next;
+ break;
+
+ /* export the tags to a directory as symlinks, allowing otherwise dead nodes to be tagged */
+ if (tags) {
+ STRV_FOREACH(t, tags) {
+ _cleanup_free_ char *unescaped_filename = NULL;
+
+ strscpyl(tags_dir, sizeof(tags_dir), "/run/udev/static_node-tags/", *t, "/", NULL);
+ r = mkdir_p(tags_dir, 0755);
+ if (r < 0)
+ return log_error_errno(r, "failed to create %s: %m", tags_dir);
+
+ unescaped_filename = xescape(rules_str(rules, cur->key.value_off), "/.");
+
+ strscpyl(tag_symlink, sizeof(tag_symlink), tags_dir, unescaped_filename, NULL);
+ r = symlink(device_node, tag_symlink);
+ if (r < 0 && errno != EEXIST)
+ return log_error_errno(errno, "failed to create symlink %s -> %s: %m",
+ tag_symlink, device_node);
+ else
+ r = 0;
+ }
+ }
+
+ /* don't touch the permissions if only the tags were set */
+ if (mode == 0 && uid == 0 && gid == 0)
+ break;
+
if (mode == 0) {
if (gid > 0)
mode = 0660;
mode = 0600;
}
if (mode != (stats.st_mode & 01777)) {
- chmod(filename, mode);
- log_debug("chmod '%s' %#o\n", filename, mode);
+ r = chmod(device_node, mode);
+ if (r < 0) {
+ log_error("failed to chmod '%s' %#o", device_node, mode);
+ return -errno;
+ } else
+ log_debug("chmod '%s' %#o", device_node, mode);
}
if ((uid != 0 && uid != stats.st_uid) || (gid != 0 && gid != stats.st_gid)) {
- chown(filename, uid, gid);
- log_debug("chown '%s' %u %u\n", filename, uid, gid);
+ r = chown(device_node, uid, gid);
+ if (r < 0) {
+ log_error("failed to chown '%s' %u %u ", device_node, uid, gid);
+ return -errno;
+ } else
+ log_debug("chown '%s' %u %u", device_node, uid, gid);
}
- utimensat(AT_FDCWD, filename, NULL, 0);
+ utimensat(AT_FDCWD, device_node, NULL, 0);
break;
}
case TK_END:
- return;
+ goto finish;
}
cur++;
cur = rule + rule->rule.token_count;
continue;
}
+
+finish:
+ if (f) {
+ fflush(f);
+ fchmod(fileno(f), 0644);
+ if (ferror(f) || rename(path, "/run/udev/static_node-tags") < 0) {
+ r = -errno;
+ unlink("/run/udev/static_node-tags");
+ unlink(path);
+ }
+ fclose(f);
+ }
+
+ return r;
}
~ianmdlvl / elogind.git / blobdiff