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,
};
};
#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",
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;
}
}
-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",
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\n", owner);
+ else
+ log_error("error resolving user '%s': %s\n", owner, strerror(-r));
+ }
/* 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\n", group);
+ else
+ log_error("error resolving group '%s': %s\n", group, strerror(-r));
+ }
/* 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;
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];
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;
int err;
envp = udev_device_get_properties_envp(dev);
- err = udev_event_spawn(event, timeout_usec, 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;
}
#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;
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, "/*/")) {
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;
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;
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;
_cleanup_free_ char *tmp;
tmp = cescape(buf);
- log_error("invalid key/value pair in file %s on line %u,"
- "starting at character %tu ('%s')\n",
+ log_error("invalid key/value pair in file %s on line %u, starting at character %tu ('%s')\n",
filename, lineno, linepos - line + 1, tmp);
if (linepos[1] == '#')
log_error("hint: comments can only start at beginning of line");
log_error("error parsing ATTR attribute");
goto invalid;
}
+ if (op == OP_REMOVE) {
+ log_error("invalid ATTR operation");
+ goto invalid;
+ }
if (op < OP_MATCH_MAX) {
rule_add_key(&rule_tmp, TK_M_ATTR, op, value, attr);
} else {
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;
log_error("error parsing ENV attribute");
goto invalid;
}
+ if (op == OP_REMOVE) {
+ log_error("invalid ENV operation");
+ goto invalid;
+ }
if (op < OP_MATCH_MAX) {
if (rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr) != 0)
goto invalid;
}
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;
}
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] != '/') {
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", 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;
}
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, "string_escape=");
if (pos != NULL) {
pos = &pos[strlen("string_escape=")];
if (startswith(pos, "none"))
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];
}
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++) {
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;
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);
return NULL;
}
-bool udev_rules_check_timestamp(struct udev_rules *rules)
-{
+bool udev_rules_check_timestamp(struct udev_rules *rules) {
if (!rules)
return false;
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;
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;
int udev_rules_apply_to_event(struct udev_rules *rules,
struct udev_event *event,
usec_t timeout_usec,
+ usec_t timeout_warn_usec,
const sigset_t *sigmask) {
struct token *cur;
struct token *rule;
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (udev_event_spawn(event, timeout_usec, 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 {
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (import_program_into_properties(event, timeout_usec, 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;
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);
+ r = get_user_creds(&ow, &event->uid, NULL, NULL, NULL);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error(event->udev, "specified user '%s' unknown\n", owner);
+ else
+ log_error(event->udev, "error resolving user '%s': %s\n", owner, strerror(-r));
+
+ event->uid = 0;
+ }
log_debug("OWNER %u %s:%u",
event->uid,
rules_str(rules, rule->rule.filename_off),
}
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);
+ r = get_group_creds(&gr, &event->gid);
+ if (r < 0) {
+ if (r == -ENOENT || r == -ESRCH)
+ log_error(event->udev, "specified group '%s' unknown\n", group);
+ else
+ log_error(event->udev, "error resolving group '%s': %s\n", group, strerror(-r));
+
+ event->gid = 0;
+ }
log_debug("GROUP %u %s:%u",
event->gid,
rules_str(rules, rule->rule.filename_off),
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: {
}
}
-int 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;
~ianmdlvl / elogind.git / blobdiff