TK_M_DEVLINK, /* val */
TK_M_NAME, /* val */
TK_M_ENV, /* val, attr */
+ TK_M_TAG, /* val */
TK_M_SUBSYSTEM, /* val */
TK_M_DRIVER, /* val */
TK_M_WAITFOR, /* val */
TK_M_SUBSYSTEMS, /* val */
TK_M_DRIVERS, /* val */
TK_M_ATTRS, /* val, attr */
+ TK_M_TAGS, /* val */
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_M_IMPORT_BUILTIN, /* val */
TK_M_IMPORT_DB, /* val */
+ TK_M_IMPORT_CMDLINE, /* val */
TK_M_IMPORT_PARENT, /* val */
TK_M_RESULT, /* val */
TK_M_MAX,
TK_A_STRING_ESCAPE_NONE,
TK_A_STRING_ESCAPE_REPLACE,
+ TK_A_DB_PERSIST,
TK_A_INOTIFY_WATCH, /* int */
TK_A_DEVLINK_PRIO, /* int */
TK_A_OWNER, /* val */
TK_A_OWNER_ID, /* uid_t */
TK_A_GROUP_ID, /* gid_t */
TK_A_MODE_ID, /* mode_t */
+ TK_A_STATIC_NODE, /* val */
TK_A_ENV, /* val, attr */
TK_A_TAG, /* val */
TK_A_NAME, /* val */
TK_A_DEVLINK, /* val */
- TK_A_EVENT_TIMEOUT, /* int */
TK_A_ATTR, /* val, attr */
TK_A_RUN, /* val, bool */
TK_A_GOTO, /* size_t */
/* we try to pack stuff in a way that we take only 12 bytes per token */
struct token {
union {
- unsigned char type; /* same as in rule and key */
+ unsigned char type; /* same in rule and key */
struct {
enum token_type type:8;
- unsigned int flags:8;
+ bool can_set_name:1;
+ bool has_static_node:1;
+ unsigned int unused:6;
unsigned short token_count;
unsigned int label_off;
unsigned short filename_off;
int devlink_prio;
int event_timeout;
int watch;
+ enum udev_builtin_cmd builtin_cmd;
};
} key;
};
[TK_M_DEVLINK] = "M DEVLINK",
[TK_M_NAME] = "M NAME",
[TK_M_ENV] = "M ENV",
+ [TK_M_TAG] = "M TAG",
[TK_M_SUBSYSTEM] = "M SUBSYSTEM",
[TK_M_DRIVER] = "M DRIVER",
[TK_M_WAITFOR] = "M WAITFOR",
[TK_M_SUBSYSTEMS] = "M SUBSYSTEMS",
[TK_M_DRIVERS] = "M DRIVERS",
[TK_M_ATTRS] = "M ATTRS",
+ [TK_M_TAGS] = "M TAGS",
[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_M_IMPORT_BUILTIN] = "M IMPORT_BUILTIN",
[TK_M_IMPORT_DB] = "M IMPORT_DB",
+ [TK_M_IMPORT_CMDLINE] = "M IMPORT_CMDLINE",
[TK_M_IMPORT_PARENT] = "M IMPORT_PARENT",
[TK_M_RESULT] = "M RESULT",
[TK_M_MAX] = "M MAX",
[TK_A_STRING_ESCAPE_NONE] = "A STRING_ESCAPE_NONE",
[TK_A_STRING_ESCAPE_REPLACE] = "A STRING_ESCAPE_REPLACE",
+ [TK_A_DB_PERSIST] = "A DB_PERSIST",
[TK_A_INOTIFY_WATCH] = "A INOTIFY_WATCH",
[TK_A_DEVLINK_PRIO] = "A DEVLINK_PRIO",
[TK_A_OWNER] = "A OWNER",
[TK_A_MODE] = "A MODE",
[TK_A_OWNER_ID] = "A OWNER_ID",
[TK_A_GROUP_ID] = "A GROUP_ID",
+ [TK_A_STATIC_NODE] = "A STATIC_NODE",
[TK_A_MODE_ID] = "A MODE_ID",
[TK_A_ENV] = "A ENV",
[TK_A_TAG] = "A ENV",
[TK_A_NAME] = "A NAME",
[TK_A_DEVLINK] = "A DEVLINK",
- [TK_A_EVENT_TIMEOUT] = "A EVENT_TIMEOUT",
[TK_A_ATTR] = "A ATTR",
[TK_A_RUN] = "A RUN",
[TK_A_GOTO] = "A GOTO",
const char *tk_ptr = (char *)token;
unsigned int idx = (tk_ptr - tks_ptr) / sizeof(struct token);
- dbg(rules->udev, "* RULE %s:%u, token: %u, count: %u, label: '%s', flags: 0x%02x\n",
+ dbg(rules->udev, "* RULE %s:%u, token: %u, count: %u, label: '%s'\n",
&rules->buf[token->rule.filename_off], token->rule.filename_line,
idx, token->rule.token_count,
- &rules->buf[token->rule.label_off],
- token->rule.flags);
+ &rules->buf[token->rule.label_off]);
break;
}
case TK_M_ACTION:
case TK_M_KERNELS:
case TK_M_SUBSYSTEMS:
case TK_M_DRIVERS:
+ case TK_M_TAGS:
case TK_M_PROGRAM:
case TK_M_IMPORT_FILE:
case TK_M_IMPORT_PROG:
case TK_M_IMPORT_DB:
+ case TK_M_IMPORT_CMDLINE:
case TK_M_IMPORT_PARENT:
case TK_M_RESULT:
case TK_A_NAME:
dbg(rules->udev, "%s %s '%s'(%s)\n",
token_str(type), operation_str(op), value, string_glob_str(glob));
break;
+ case TK_M_IMPORT_BUILTIN:
+ dbg(rules->udev, "%s %i\n", token_str(type), token->key.builtin_cmd);
+ break;
case TK_M_ATTR:
case TK_M_ATTRS:
case TK_M_ENV:
dbg(rules->udev, "%s %s '%s' '%s'(%s)\n",
token_str(type), operation_str(op), attr, value, string_glob_str(glob));
break;
+ case TK_M_TAG:
case TK_A_TAG:
dbg(rules->udev, "%s %s '%s'\n", 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:
dbg(rules->udev, "%s\n", token_str(type));
break;
case TK_M_TEST:
dbg(rules->udev, "%s %u\n", token_str(type), token->key.watch);
break;
case TK_A_DEVLINK_PRIO:
- dbg(rules->udev, "%s %s %u\n", token_str(type), operation_str(op), token->key.devlink_prio);
+ dbg(rules->udev, "%s %u\n", token_str(type), token->key.devlink_prio);
break;
case TK_A_OWNER_ID:
dbg(rules->udev, "%s %s %u\n", token_str(type), operation_str(op), token->key.uid);
case TK_A_MODE_ID:
dbg(rules->udev, "%s %s %#o\n", token_str(type), operation_str(op), token->key.mode);
break;
- case TK_A_EVENT_TIMEOUT:
- dbg(rules->udev, "%s %s %u\n", token_str(type), operation_str(op), token->key.event_timeout);
+ case TK_A_STATIC_NODE:
+ dbg(rules->udev, "%s '%s'\n", token_str(type), value);
+ break;
+ case TK_M_EVENT_TIMEOUT:
+ dbg(rules->udev, "%s %u\n", token_str(type), token->key.event_timeout);
break;
case TK_A_GOTO:
dbg(rules->udev, "%s '%s' %u\n", token_str(type), value, token->key.rule_goto);
entry = udev_device_add_property(dev, key, val);
/* store in db, skip private keys */
if (key[0] != '.')
- udev_list_entry_set_flags(entry, 1);
+ udev_list_entry_set_num(entry, true);
}
return 0;
}
return 0;
}
-static int import_program_into_properties(struct udev_device *dev, const char *program)
+static int import_program_into_properties(struct udev_event *event, const char *program, const sigset_t *sigmask)
{
- struct udev *udev = udev_device_get_udev(dev);
+ struct udev_device *dev = event->dev;
char **envp;
- char result[4096];
- size_t reslen;
+ char result[UTIL_LINE_SIZE];
char *line;
+ int err;
envp = udev_device_get_properties_envp(dev);
- if (util_run_program(udev, program, envp, result, sizeof(result), &reslen, NULL) != 0)
- return -1;
+ err = udev_event_spawn(event, program, envp, sigmask, result, sizeof(result));
+ if (err < 0)
+ return err;
line = result;
while (line != NULL) {
entry = udev_device_add_property(dev, key, val);
/* store in db, skip private keys */
if (key[0] != '.')
- udev_list_entry_set_flags(entry, 1);
+ udev_list_entry_set_num(entry, true);
}
}
return 0;
static int attr_subst_subdir(char *attr, size_t len)
{
- int found = 0;
+ bool found = false;
if (strstr(attr, "/*/")) {
char *pos;
continue;
util_strscpyl(attr, len, dirname, "/", dent->d_name, tail, NULL);
if (stat(attr, &stats) == 0) {
- found = 1;
+ found = true;
break;
}
}
return -1;
*key = linepos;
- while (1) {
+ for (;;) {
linepos++;
if (linepos[0] == '\0')
return -1;
case TK_M_KERNELS:
case TK_M_SUBSYSTEMS:
case TK_M_DRIVERS:
+ case TK_M_TAGS:
case TK_M_PROGRAM:
case TK_M_IMPORT_FILE:
case TK_M_IMPORT_PROG:
case TK_M_IMPORT_DB:
+ case TK_M_IMPORT_CMDLINE:
case TK_M_IMPORT_PARENT:
case TK_M_RESULT:
case TK_A_OWNER:
case TK_A_MODE:
case TK_A_NAME:
case TK_A_GOTO:
+ case TK_M_TAG:
case TK_A_TAG:
token->key.value_off = add_string(rule_tmp->rules, value);
break;
+ case TK_M_IMPORT_BUILTIN:
+ token->key.builtin_cmd = *(enum udev_builtin_cmd *)data;
+ break;
case TK_M_ENV:
case TK_M_ATTR:
case TK_M_ATTRS:
break;
case TK_A_STRING_ESCAPE_NONE:
case TK_A_STRING_ESCAPE_REPLACE:
+ case TK_A_DB_PERSIST:
break;
case TK_A_RUN:
token->key.value_off = add_string(rule_tmp->rules, value);
case TK_A_MODE_ID:
token->key.mode = *(mode_t *)data;
break;
- case TK_A_EVENT_TIMEOUT:
+ case TK_A_STATIC_NODE:
+ token->key.value_off = add_string(rule_tmp->rules, value);
+ break;
+ case TK_M_EVENT_TIMEOUT:
token->key.event_timeout = *(int *)data;
break;
case TK_RULE:
rule_tmp.rule.rule.filename_line = lineno;
linepos = line;
- while (1) {
+ for (;;) {
char *key;
char *value;
enum operation_type op;
continue;
}
+ if (strcmp(key, "TAGS") == 0) {
+ if (op > OP_MATCH_MAX) {
+ err(rules->udev, "invalid TAGS operation\n");
+ goto invalid;
+ }
+ rule_add_key(&rule_tmp, TK_M_TAGS, op, value, NULL);
+ continue;
+ }
+
if (strncmp(key, "SYSFS{", sizeof("SYSFS{")-1) == 0) {
if (!sysfs_warn) {
sysfs_warn = true;
if (rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr) != 0)
goto invalid;
} else {
+ static const char *blacklist[] = {
+ "ACTION",
+ "SUBSYSTEM",
+ "DEVTYPE",
+ "MAJOR",
+ "MINOR",
+ "DRIVER",
+ "IFINDEX",
+ "DEVNAME",
+ "DEVLINKS",
+ "DEVPATH",
+ "TAGS",
+ };
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(blacklist); i++)
+ if (strcmp(attr, blacklist[i]) == 0) {
+ err(rules->udev, "invalid ENV attribute, '%s' can not be set %s:%u\n", attr, filename, lineno);
+ continue;
+ }
if (rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr) != 0)
goto invalid;
}
}
if (strcmp(key, "TAG") == 0) {
- rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
+ if (op < OP_MATCH_MAX)
+ rule_add_key(&rule_tmp, TK_M_TAG, op, value, NULL);
+ else
+ rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
continue;
}
if (strncmp(key, "IMPORT", sizeof("IMPORT")-1) == 0) {
attr = get_key_attribute(rules->udev, key + sizeof("IMPORT")-1);
- if (attr != NULL && strstr(attr, "program")) {
+ if (attr == NULL) {
+ err(rules->udev, "IMPORT{} type missing, ignoring IMPORT %s:%u\n", filename, lineno);
+ continue;
+ }
+ if (strstr(attr, "program")) {
+ /* find known built-in command */
+ if (value[0] != '/') {
+ char file[UTIL_PATH_SIZE];
+ char *pos;
+ enum udev_builtin_cmd cmd;
+
+ util_strscpy(file, sizeof(file), value);
+ pos = strchr(file, ' ');
+ if (pos)
+ pos[0] = '\0';
+ cmd = udev_builtin_lookup(file);
+ if (cmd < UDEV_BUILTIN_MAX) {
+ info(rules->udev, "IMPORT found builtin '%s', replacing %s:%u\n", file, filename, lineno);
+ rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, NULL, &cmd);
+ continue;
+ }
+ }
dbg(rules->udev, "IMPORT will be executed\n");
rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
- } else if (attr != NULL && strstr(attr, "file")) {
+ } else if (strstr(attr, "builtin")) {
+ enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
+
+ dbg(rules->udev, "IMPORT execute builtin\n");
+ if (cmd < UDEV_BUILTIN_MAX)
+ rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, NULL, &cmd);
+ else
+ err(rules->udev, "IMPORT{builtin}: '%s' unknown %s:%u\n", value, filename, lineno);
+ } else if (strstr(attr, "file")) {
dbg(rules->udev, "IMPORT will be included as file\n");
rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
- } else if (attr != NULL && strstr(attr, "db")) {
+ } else if (strstr(attr, "db")) {
dbg(rules->udev, "IMPORT will include db values\n");
rule_add_key(&rule_tmp, TK_M_IMPORT_DB, op, value, NULL);
- } else if (attr != NULL && strstr(attr, "parent")) {
+ } else if (strstr(attr, "cmdline")) {
+ dbg(rules->udev, "IMPORT will include db values\n");
+ rule_add_key(&rule_tmp, TK_M_IMPORT_CMDLINE, op, value, NULL);
+ } else if (strstr(attr, "parent")) {
dbg(rules->udev, "IMPORT will include the parent values\n");
rule_add_key(&rule_tmp, TK_M_IMPORT_PARENT, op, value, NULL);
- } else {
- /* figure it out if it is executable */
- char file[UTIL_PATH_SIZE];
- char *pos;
- struct stat statbuf;
-
- /* allow programs in /lib/udev called without the path */
- if (value[0] != '/')
- util_strscpyl(file, sizeof(file), LIBEXECDIR "/", value, NULL);
- else
- util_strscpy(file, sizeof(file), value);
- pos = strchr(file, ' ');
- if (pos)
- pos[0] = '\0';
- dbg(rules->udev, "IMPORT auto mode for '%s'\n", file);
- if (stat(file, &statbuf) == 0 && (statbuf.st_mode & S_IXUSR)) {
- dbg(rules->udev, "IMPORT will be executed (autotype)\n");
- rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
- } else {
- dbg(rules->udev, "IMPORT will be included as file (autotype)\n");
- rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
- }
}
continue;
}
if (op < OP_MATCH_MAX) {
rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL);
} else {
- if (value[0] == '\0')
- info(rules->udev, "name empty, node creation suppressed\n");
- else if (strcmp(value, "%k") == 0)
- err(rules->udev, "NAME=\"%%k\" is superfluous and breaks "
- "kernel supplied names, please remove it from %s:%u\n", filename, lineno);
+ if (strcmp(value, "%k") == 0) {
+ err(rules->udev, "NAME=\"%%k\" is ignored, because it breaks kernel supplied names, "
+ "please remove it from %s:%u\n", filename, lineno);
+ continue;
+ }
+ if (value[0] == '\0') {
+ info(rules->udev, "NAME=\"\" is ignored, because udev will not delete any device nodes, "
+ "please remove it from %s:%u\n", filename, lineno);
+ continue;
+ }
rule_add_key(&rule_tmp, TK_A_NAME, op, value, NULL);
}
- rule_tmp.rule.rule.flags = 1;
+ rule_tmp.rule.rule.can_set_name = true;
continue;
}
flag = 1;
rule_add_key(&rule_tmp, TK_A_DEVLINK, op, value, &flag);
}
- rule_tmp.rule.rule.flags = 1;
+ rule_tmp.rule.rule.can_set_name = true;
continue;
}
} else if (rules->resolve_names >= 0) {
rule_add_key(&rule_tmp, TK_A_OWNER, op, value, NULL);
}
- rule_tmp.rule.rule.flags = 1;
+ rule_tmp.rule.rule.can_set_name = true;
continue;
}
} else if (rules->resolve_names >= 0) {
rule_add_key(&rule_tmp, TK_A_GROUP, op, value, NULL);
}
- rule_tmp.rule.rule.flags = 1;
+ rule_tmp.rule.rule.can_set_name = true;
continue;
}
rule_add_key(&rule_tmp, TK_A_MODE_ID, op, NULL, &mode);
else
rule_add_key(&rule_tmp, TK_A_MODE, op, value, NULL);
- rule_tmp.rule.rule.flags = 1;
+ rule_tmp.rule.rule.can_set_name = true;
continue;
}
if (pos != NULL) {
int prio = atoi(&pos[strlen("link_priority=")]);
- rule_add_key(&rule_tmp, TK_A_DEVLINK_PRIO, 0, NULL, &prio);
+ rule_add_key(&rule_tmp, TK_A_DEVLINK_PRIO, op, NULL, &prio);
dbg(rules->udev, "link priority=%i\n", prio);
}
+
pos = strstr(value, "event_timeout=");
if (pos != NULL) {
int tout = atoi(&pos[strlen("event_timeout=")]);
- rule_add_key(&rule_tmp, TK_A_EVENT_TIMEOUT, 0, NULL, &tout);
+ rule_add_key(&rule_tmp, TK_M_EVENT_TIMEOUT, op, NULL, &tout);
dbg(rules->udev, "event timeout=%i\n", tout);
}
+
pos = strstr(value, "string_escape=");
if (pos != NULL) {
pos = &pos[strlen("string_escape=")];
if (strncmp(pos, "none", strlen("none")) == 0)
- rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_NONE, 0, NULL, NULL);
+ rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_NONE, op, NULL, NULL);
else if (strncmp(pos, "replace", strlen("replace")) == 0)
- rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_REPLACE, 0, NULL, NULL);
+ rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_REPLACE, op, NULL, NULL);
}
+
+ pos = strstr(value, "db_persist");
+ if (pos != NULL)
+ rule_add_key(&rule_tmp, TK_A_DB_PERSIST, op, NULL, NULL);
+
pos = strstr(value, "nowatch");
if (pos != NULL) {
const int off = 0;
- rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, 0, NULL, &off);
+ rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &off);
dbg(rules->udev, "inotify watch of device disabled\n");
} else {
pos = strstr(value, "watch");
if (pos != NULL) {
const int on = 1;
- rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, 0, NULL, &on);
+ rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &on);
dbg(rules->udev, "inotify watch of device requested\n");
}
}
+
+ pos = strstr(value, "static_node=");
+ if (pos != NULL) {
+ rule_add_key(&rule_tmp, TK_A_STATIC_NODE, op, &pos[strlen("static_node=")], NULL);
+ rule_tmp.rule.rule.has_static_node = true;
+ }
+
continue;
}
err(rules->udev, "unknown key '%s' in %s:%u\n", key, filename, lineno);
return 0;
}
-static int add_matching_files(struct udev *udev, struct udev_list_node *file_list, const char *dirname, const char *suffix)
+static int add_matching_files(struct udev *udev, struct udev_list *file_list, const char *dirname, const char *suffix)
{
DIR *dir;
+ struct dirent *dent;
char filename[UTIL_PATH_SIZE];
dbg(udev, "open directory '%s'\n", dirname);
return -1;
}
- while (1) {
- struct dirent *dent;
-
- dent = readdir(dir);
- if (dent == NULL || dent->d_name[0] == '\0')
- break;
-
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
if (dent->d_name[0] == '.')
continue;
}
util_strscpyl(filename, sizeof(filename), dirname, "/", dent->d_name, NULL);
dbg(udev, "put file '%s' into list\n", filename);
- udev_list_entry_add(udev, file_list, filename, NULL, 1, 1);
+ /*
+ * the basename is the key, the filename the value
+ * identical basenames from different directories overwrite each other
+ * entries are sorted after basename
+ */
+ udev_list_entry_add(file_list, dent->d_name, filename);
}
closedir(dir);
struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names)
{
struct udev_rules *rules;
- struct stat statbuf;
- struct udev_list_node file_list;
- struct udev_list_entry *file_loop, *file_tmp;
+ struct udev_list file_list;
+ struct udev_list_entry *file_loop;
struct token end_token;
- rules = malloc(sizeof(struct udev_rules));
+ rules = calloc(1, sizeof(struct udev_rules));
if (rules == NULL)
return NULL;
- memset(rules, 0x00, sizeof(struct udev_rules));
rules->udev = udev;
rules->resolve_names = resolve_names;
- udev_list_init(&file_list);
+ udev_list_init(udev, &file_list, true);
/* init token array and string buffer */
rules->tokens = malloc(PREALLOC_TOKEN * sizeof(struct token));
- if (rules->tokens == NULL)
+ if (rules->tokens == NULL) {
+ free(rules);
return NULL;
+ }
rules->token_max = PREALLOC_TOKEN;
rules->buf = malloc(PREALLOC_STRBUF);
- if (rules->buf == NULL)
+ if (rules->buf == NULL) {
+ free(rules->tokens);
+ free(rules);
return NULL;
+ }
rules->buf_max = PREALLOC_STRBUF;
/* offset 0 is always '\0' */
rules->buf[0] = '\0';
rules->token_max * sizeof(struct token), rules->token_max, sizeof(struct token), rules->buf_max);
rules->trie_nodes = malloc(PREALLOC_TRIE * sizeof(struct trie_node));
- if (rules->trie_nodes == NULL)
+ if (rules->trie_nodes == NULL) {
+ free(rules->buf);
+ free(rules->tokens);
+ free(rules);
return NULL;
+ }
rules->trie_nodes_max = PREALLOC_TRIE;
/* offset 0 is the trie root, with an empty string */
memset(rules->trie_nodes, 0x00, sizeof(struct trie_node));
rules->trie_nodes_cur = 1;
- if (udev_get_rules_path(udev) != NULL) {
- /* custom rules location for testing */
- add_matching_files(udev, &file_list, udev_get_rules_path(udev), ".rules");
- } else {
- char filename[PATH_MAX];
- struct udev_list_node sort_list;
- struct udev_list_entry *sort_loop, *sort_tmp;
+ if (udev_get_rules_path(udev) == NULL) {
+ char filename[UTIL_PATH_SIZE];
- /* read user/custom rules */
- add_matching_files(udev, &file_list, SYSCONFDIR "/udev/rules.d", ".rules");
-
- /* read dynamic/temporary rules */
- util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/rules.d", NULL);
- udev_list_init(&sort_list);
- add_matching_files(udev, &sort_list, filename, ".rules");
-
- /* read default rules */
- add_matching_files(udev, &sort_list, LIBEXECDIR "/rules.d", ".rules");
+ /* /lib/udev -- default/package rules */
+ add_matching_files(udev, &file_list, LIBEXECDIR "/rules.d", ".rules");
- /* sort all rules files by basename into list of files */
- udev_list_entry_foreach_safe(sort_loop, sort_tmp, udev_list_get_entry(&sort_list)) {
- const char *sort_name = udev_list_entry_get_name(sort_loop);
- const char *sort_base = strrchr(sort_name, '/');
-
- if (sort_base == NULL)
- continue;
- /* sort entry into existing list */
- udev_list_entry_foreach_safe(file_loop, file_tmp, udev_list_get_entry(&file_list)) {
- const char *file_name = udev_list_entry_get_name(file_loop);
- const char *file_base = strrchr(file_name, '/');
+ /* /etc/udev -- system-specific/user/admin rules */
+ add_matching_files(udev, &file_list, SYSCONFDIR "/udev/rules.d", ".rules");
- if (file_base == NULL)
- continue;
- if (strcmp(file_base, sort_base) == 0) {
- info(udev, "rule file basename '%s' already added, ignoring '%s'\n",
- file_name, sort_name);
- udev_list_entry_delete(sort_loop);
- sort_loop = NULL;
- break;
- }
- if (strcmp(file_base, sort_base) > 0) {
- /* found later file, insert before */
- udev_list_entry_remove(sort_loop);
- udev_list_entry_insert_before(sort_loop, file_loop);
- sort_loop = NULL;
- break;
- }
- }
- /* current file already handled */
- if (sort_loop == NULL)
- continue;
- /* no later file, append to end of list */
- udev_list_entry_remove(sort_loop);
- udev_list_entry_append(sort_loop, &file_list);
- }
+ /* /run/udev -- throw-away/temporary rules */
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/rules.d", NULL);
+ add_matching_files(udev, &file_list, filename, ".rules");
+ } else {
+ /* custom rules files location for testing */
+ add_matching_files(udev, &file_list, udev_get_rules_path(udev), ".rules");
}
/* add all filenames to the string buffer */
udev_list_entry_foreach(file_loop, udev_list_get_entry(&file_list)) {
- const char *filename = udev_list_entry_get_name(file_loop);
+ const char *filename = udev_list_entry_get_value(file_loop);
unsigned int filename_off;
filename_off = add_string(rules, filename);
/* the offset in the rule is limited to unsigned short */
if (filename_off < USHRT_MAX)
- udev_list_entry_set_flags(file_loop, filename_off);
+ udev_list_entry_set_num(file_loop, filename_off);
}
- /* parse list of files */
- udev_list_entry_foreach_safe(file_loop, file_tmp, udev_list_get_entry(&file_list)) {
- const char *filename = udev_list_entry_get_name(file_loop);
- unsigned int filename_off = udev_list_entry_get_flags(file_loop);
+ /* parse all rules files */
+ udev_list_entry_foreach(file_loop, udev_list_get_entry(&file_list)) {
+ const char *filename = udev_list_entry_get_value(file_loop);
+ unsigned int filename_off = udev_list_entry_get_num(file_loop);
+ struct stat st;
- if (stat(filename, &statbuf) == 0 && statbuf.st_size > 0)
- parse_file(rules, filename, filename_off);
- else
- err(udev, "can not read '%s'\n", filename);
- udev_list_entry_delete(file_loop);
+ if (stat(filename, &st) != 0) {
+ err(udev, "can not find '%s': %m\n", filename);
+ continue;
+ }
+ if (S_ISREG(st.st_mode) && st.st_size <= 0) {
+ info(udev, "ignore empty '%s'\n", filename);
+ continue;
+ }
+ if (S_ISCHR(st.st_mode)) {
+ info(udev, "ignore masked '%s'\n", filename);
+ continue;
+ }
+ parse_file(rules, filename, filename_off);
}
+ udev_list_cleanup(&file_list);
memset(&end_token, 0x00, sizeof(struct token));
end_token.type = TK_END;
{
char *key_value = &rules->buf[token->key.value_off];
char *pos;
- int match = 0;
+ bool match = false;
if (val == NULL)
val = "";
split = &rules->buf[token->key.value_off];
len = strlen(val);
- while (1) {
+ for (;;) {
const char *next;
next = strchr(split, '|');
ESCAPE_REPLACE,
};
-int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event)
+int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event, const sigset_t *sigmask)
{
struct token *cur;
struct token *rule;
can_set_name = ((strcmp(udev_device_get_action(event->dev), "remove") != 0) &&
(major(udev_device_get_devnum(event->dev)) > 0 ||
- strcmp(udev_device_get_subsystem(event->dev), "net") == 0));
+ udev_device_get_ifindex(event->dev) > 0));
/* loop through token list, match, run actions or forward to next rule */
cur = &rules->tokens[0];
rule = cur;
- while (1) {
+ for (;;) {
dump_token(rules, cur);
switch (cur->type) {
case TK_RULE:
/* current rule */
rule = cur;
/* possibly skip rules which want to set NAME, SYMLINK, OWNER, GROUP, MODE */
- if (!can_set_name && rule->rule.flags)
+ if (!can_set_name && rule->rule.can_set_name)
goto nomatch;
esc = ESCAPE_UNSET;
break;
if (match_key(rules, cur, udev_device_get_sysname(event->dev)) != 0)
goto nomatch;
break;
- case TK_M_DEVLINK:
- {
- size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
- struct udev_list_entry *list_entry;
- int match = 0;
-
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(event->dev)) {
- const char *devlink;
-
- devlink = &udev_list_entry_get_name(list_entry)[devlen];
- if (match_key(rules, cur, devlink) == 0) {
- match = 1;
- break;
- }
+ case TK_M_DEVLINK: {
+ size_t devlen = strlen(udev_get_dev_path(event->udev))+1;
+ struct udev_list_entry *list_entry;
+ bool match = false;
+
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(event->dev)) {
+ const char *devlink;
+
+ devlink = &udev_list_entry_get_name(list_entry)[devlen];
+ if (match_key(rules, cur, devlink) == 0) {
+ match = true;
+ break;
}
- if (!match)
- goto nomatch;
- break;
}
+ if (!match)
+ goto nomatch;
+ break;
+ }
case TK_M_NAME:
if (match_key(rules, cur, event->name) != 0)
goto nomatch;
break;
- case TK_M_ENV:
- {
- const char *key_name = &rules->buf[cur->key.attr_off];
- const char *value;
-
- value = udev_device_get_property_value(event->dev, key_name);
- if (value == NULL) {
- dbg(event->udev, "ENV{%s} is not set, treat as empty\n", key_name);
- value = "";
+ case TK_M_ENV: {
+ const char *key_name = &rules->buf[cur->key.attr_off];
+ const char *value;
+
+ value = udev_device_get_property_value(event->dev, key_name);
+ if (value == NULL) {
+ dbg(event->udev, "ENV{%s} is not set, treat as empty\n", key_name);
+ value = "";
+ }
+ if (match_key(rules, cur, value))
+ goto nomatch;
+ break;
+ }
+ case TK_M_TAG: {
+ struct udev_list_entry *list_entry;
+ bool match = false;
+
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(event->dev)) {
+ if (strcmp(&rules->buf[cur->key.value_off], udev_list_entry_get_name(list_entry)) == 0) {
+ match = true;
+ break;
}
- if (match_key(rules, cur, value))
- goto nomatch;
- break;
}
+ if (!match && (cur->key.op != OP_NOMATCH))
+ goto nomatch;
+ break;
+ }
case TK_M_SUBSYSTEM:
if (match_key(rules, cur, udev_device_get_subsystem(event->dev)) != 0)
goto nomatch;
if (match_key(rules, cur, udev_device_get_driver(event->dev)) != 0)
goto nomatch;
break;
- case TK_M_WAITFOR:
- {
- char filename[UTIL_PATH_SIZE];
- int found;
-
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], filename, sizeof(filename));
- found = (wait_for_file(event->dev, filename, 10) == 0);
- if (!found && (cur->key.op != OP_NOMATCH))
- goto nomatch;
- break;
- }
+ case TK_M_WAITFOR: {
+ char filename[UTIL_PATH_SIZE];
+ int found;
+
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], filename, sizeof(filename));
+ found = (wait_for_file(event->dev, filename, 10) == 0);
+ if (!found && (cur->key.op != OP_NOMATCH))
+ goto nomatch;
+ break;
+ }
case TK_M_ATTR:
if (match_attr(rules, event->dev, event, cur) != 0)
goto nomatch;
case TK_M_SUBSYSTEMS:
case TK_M_DRIVERS:
case TK_M_ATTRS:
- {
- struct token *next;
-
- /* get whole sequence of parent matches */
- next = cur;
- while (next->type > TK_M_PARENTS_MIN && next->type < TK_M_PARENTS_MAX)
- next++;
+ case TK_M_TAGS: {
+ struct token *next;
+
+ /* get whole sequence of parent matches */
+ next = cur;
+ while (next->type > TK_M_PARENTS_MIN && next->type < TK_M_PARENTS_MAX)
+ next++;
+
+ /* loop over parents */
+ event->dev_parent = event->dev;
+ for (;;) {
+ struct token *key;
+
+ dbg(event->udev, "parent: '%s'\n", udev_device_get_syspath(event->dev_parent));
+ /* loop over sequence of parent match keys */
+ for (key = cur; key < next; key++ ) {
+ dump_token(rules, key);
+ switch(key->type) {
+ case TK_M_KERNELS:
+ if (match_key(rules, key, udev_device_get_sysname(event->dev_parent)) != 0)
+ goto try_parent;
+ break;
+ case TK_M_SUBSYSTEMS:
+ if (match_key(rules, key, udev_device_get_subsystem(event->dev_parent)) != 0)
+ goto try_parent;
+ break;
+ case TK_M_DRIVERS:
+ if (match_key(rules, key, udev_device_get_driver(event->dev_parent)) != 0)
+ goto try_parent;
+ break;
+ case TK_M_ATTRS:
+ if (match_attr(rules, event->dev_parent, event, key) != 0)
+ goto try_parent;
+ break;
+ case TK_M_TAGS: {
+ bool match = udev_device_has_tag(event->dev_parent, &rules->buf[cur->key.value_off]);
- /* loop over parents */
- event->dev_parent = event->dev;
- while (1) {
- struct token *key;
-
- dbg(event->udev, "parent: '%s'\n", udev_device_get_syspath(event->dev_parent));
- /* loop over sequence of parent match keys */
- for (key = cur; key < next; key++ ) {
- dump_token(rules, key);
- switch(key->type) {
- case TK_M_KERNELS:
- if (match_key(rules, key, udev_device_get_sysname(event->dev_parent)) != 0)
- goto try_parent;
- break;
- case TK_M_SUBSYSTEMS:
- if (match_key(rules, key, udev_device_get_subsystem(event->dev_parent)) != 0)
- goto try_parent;
- break;
- case TK_M_DRIVERS:
- if (match_key(rules, key, udev_device_get_driver(event->dev_parent)) != 0)
- goto try_parent;
- break;
- case TK_M_ATTRS:
- if (match_attr(rules, event->dev_parent, event, key) != 0)
- goto try_parent;
- break;
- default:
- goto nomatch;
- }
- dbg(event->udev, "parent key matched\n");
+ if (match && key->key.op == OP_NOMATCH)
+ goto try_parent;
+ if (!match && key->key.op == OP_MATCH)
+ goto try_parent;
+ break;
}
- dbg(event->udev, "all parent keys matched\n");
- /* all keys matched */
- break;
-
- try_parent:
- event->dev_parent = udev_device_get_parent(event->dev_parent);
- if (event->dev_parent == NULL)
+ default:
goto nomatch;
- }
- /* move behind our sequence of parent match keys */
- cur = next;
- continue;
- }
- case TK_M_TEST:
- {
- char filename[UTIL_PATH_SIZE];
- struct stat statbuf;
- int match;
-
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], filename, sizeof(filename));
- if (util_resolve_subsys_kernel(event->udev, filename, filename, sizeof(filename), 0) != 0) {
- if (filename[0] != '/') {
- char tmp[UTIL_PATH_SIZE];
-
- util_strscpy(tmp, sizeof(tmp), filename);
- util_strscpyl(filename, sizeof(filename),
- udev_device_get_syspath(event->dev), "/", tmp, NULL);
}
+ dbg(event->udev, "parent key matched\n");
}
- attr_subst_subdir(filename, sizeof(filename));
-
- match = (stat(filename, &statbuf) == 0);
- dbg(event->udev, "'%s' %s", filename, match ? "exists\n" : "does not exist\n");
- if (match && cur->key.mode > 0) {
- match = ((statbuf.st_mode & cur->key.mode) > 0);
- dbg(event->udev, "'%s' has mode=%#o and %s %#o\n", filename, statbuf.st_mode,
- match ? "matches" : "does not match", cur->key.mode);
- }
- if (match && cur->key.op == OP_NOMATCH)
- goto nomatch;
- if (!match && cur->key.op == OP_MATCH)
- goto nomatch;
+ dbg(event->udev, "all parent keys matched\n");
break;
- }
- case TK_M_PROGRAM:
- {
- char program[UTIL_PATH_SIZE];
- char **envp;
- char result[UTIL_PATH_SIZE];
-
- free(event->program_result);
- event->program_result = NULL;
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], program, sizeof(program));
- envp = udev_device_get_properties_envp(event->dev);
- info(event->udev, "PROGRAM '%s' %s:%u\n",
- program,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
- if (util_run_program(event->udev, program, envp, result, sizeof(result), NULL, NULL) != 0) {
- if (cur->key.op != OP_NOMATCH)
- goto nomatch;
- } else {
- int count;
- util_remove_trailing_chars(result, '\n');
- if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
- count = udev_util_replace_chars(result, UDEV_ALLOWED_CHARS_INPUT);
- if (count > 0)
- info(event->udev, "%i character(s) replaced\n" , count);
- }
- event->program_result = strdup(result);
- dbg(event->udev, "storing result '%s'\n", event->program_result);
- if (cur->key.op == OP_NOMATCH)
- goto nomatch;
+ try_parent:
+ event->dev_parent = udev_device_get_parent(event->dev_parent);
+ if (event->dev_parent == NULL)
+ goto nomatch;
+ }
+ /* move behind our sequence of parent match keys */
+ cur = next;
+ continue;
+ }
+ case TK_M_TEST: {
+ char filename[UTIL_PATH_SIZE];
+ struct stat statbuf;
+ int match;
+
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], filename, sizeof(filename));
+ if (util_resolve_subsys_kernel(event->udev, filename, filename, sizeof(filename), 0) != 0) {
+ if (filename[0] != '/') {
+ char tmp[UTIL_PATH_SIZE];
+
+ util_strscpy(tmp, sizeof(tmp), filename);
+ util_strscpyl(filename, sizeof(filename),
+ udev_device_get_syspath(event->dev), "/", tmp, NULL);
}
- break;
}
- case TK_M_IMPORT_FILE:
- {
- char import[UTIL_PATH_SIZE];
+ attr_subst_subdir(filename, sizeof(filename));
+
+ match = (stat(filename, &statbuf) == 0);
+ dbg(event->udev, "'%s' %s", filename, match ? "exists\n" : "does not exist\n");
+ if (match && cur->key.mode > 0) {
+ match = ((statbuf.st_mode & cur->key.mode) > 0);
+ dbg(event->udev, "'%s' has mode=%#o and %s %#o\n", filename, statbuf.st_mode,
+ match ? "matches" : "does not match", cur->key.mode);
+ }
+ if (match && cur->key.op == OP_NOMATCH)
+ goto nomatch;
+ if (!match && cur->key.op == OP_MATCH)
+ goto nomatch;
+ break;
+ }
+ case TK_M_EVENT_TIMEOUT:
+ info(event->udev, "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];
+
+ free(event->program_result);
+ event->program_result = NULL;
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], program, sizeof(program));
+ envp = udev_device_get_properties_envp(event->dev);
+ info(event->udev, "PROGRAM '%s' %s:%u\n",
+ program,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
- if (import_file_into_properties(event->dev, import) != 0)
- if (cur->key.op != OP_NOMATCH)
- goto nomatch;
- break;
+ if (udev_event_spawn(event, program, envp, sigmask, result, sizeof(result)) < 0) {
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ } else {
+ int count;
+
+ util_remove_trailing_chars(result, '\n');
+ if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
+ count = udev_util_replace_chars(result, UDEV_ALLOWED_CHARS_INPUT);
+ if (count > 0)
+ info(event->udev, "%i character(s) replaced\n" , count);
+ }
+ event->program_result = strdup(result);
+ dbg(event->udev, "storing result '%s'\n", event->program_result);
+ if (cur->key.op == OP_NOMATCH)
+ goto nomatch;
}
- case TK_M_IMPORT_PROG:
- {
- char import[UTIL_PATH_SIZE];
+ break;
+ }
+ case TK_M_IMPORT_FILE: {
+ char import[UTIL_PATH_SIZE];
+
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
+ if (import_file_into_properties(event->dev, import) != 0)
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ break;
+ }
+ case TK_M_IMPORT_PROG: {
+ char import[UTIL_PATH_SIZE];
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
- info(event->udev, "IMPORT '%s' %s:%u\n",
- import,
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
+ info(event->udev, "IMPORT '%s' %s:%u\n",
+ import,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+
+ if (import_program_into_properties(event, import, sigmask) != 0)
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ break;
+ }
+ case TK_M_IMPORT_BUILTIN: {
+ /* check if we ran already */
+ if (event->builtin_run & (1 << cur->key.builtin_cmd)) {
+ info(event->udev, "IMPORT builtin skip '%s' %s:%u\n",
+ udev_builtin_name(cur->key.builtin_cmd),
&rules->buf[rule->rule.filename_off],
rule->rule.filename_line);
- if (import_program_into_properties(event->dev, import) != 0)
+ /* return the result from earlier run */
+ if (event->builtin_ret & (1 << cur->key.builtin_cmd))
if (cur->key.op != OP_NOMATCH)
goto nomatch;
break;
}
- case TK_M_IMPORT_DB:
- {
- const char *key = &rules->buf[cur->key.value_off];
- const char *value;
+ /* mark as ran */
+ event->builtin_run |= (1 << cur->key.builtin_cmd);
+ info(event->udev, "IMPORT builtin '%s' %s:%u\n",
+ udev_builtin_name(cur->key.builtin_cmd),
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ if (udev_builtin_run(event->dev, cur->key.builtin_cmd, false) != 0) {
+ /* remember failure */
+ info(rules->udev, "IMPORT builtin '%s' returned non-zero\n",
+ udev_builtin_name(cur->key.builtin_cmd));
+ event->builtin_ret |= (1 << cur->key.builtin_cmd);
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ }
+ break;
+ }
+ case TK_M_IMPORT_DB: {
+ const char *key = &rules->buf[cur->key.value_off];
+ const char *value;
- value = udev_device_get_property_value(event->dev_db, key);
- if (value != NULL) {
- struct udev_list_entry *entry;
+ 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_flags(entry, 1);
- } else {
- if (cur->key.op != OP_NOMATCH)
- goto nomatch;
+ entry = udev_device_add_property(event->dev, key, value);
+ udev_list_entry_set_num(entry, true);
+ } else {
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ }
+ break;
+ }
+ case TK_M_IMPORT_CMDLINE: {
+ FILE *f;
+ bool imported = false;
+
+ f = fopen("/proc/cmdline", "r");
+ if (f != NULL) {
+ char cmdline[4096];
+
+ if (fgets(cmdline, sizeof(cmdline), f) != NULL) {
+ const char *key = &rules->buf[cur->key.value_off];
+ char *pos;
+
+ 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);
+ imported = true;
+ } else if (pos[0] == '=') {
+ const char *value;
+
+ pos++;
+ value = pos;
+ 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);
+ imported = true;
+ }
+ }
}
- break;
+ fclose(f);
}
- case TK_M_IMPORT_PARENT:
- {
- char import[UTIL_PATH_SIZE];
+ if (!imported && cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ break;
+ }
+ case TK_M_IMPORT_PARENT: {
+ char import[UTIL_PATH_SIZE];
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
- if (import_parent_into_properties(event->dev, import) != 0)
- if (cur->key.op != OP_NOMATCH)
- goto nomatch;
- break;
- }
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], import, sizeof(import));
+ if (import_parent_into_properties(event->dev, import) != 0)
+ if (cur->key.op != OP_NOMATCH)
+ goto nomatch;
+ break;
+ }
case TK_M_RESULT:
if (match_key(rules, cur, event->program_result) != 0)
goto nomatch;
case TK_A_STRING_ESCAPE_REPLACE:
esc = ESCAPE_REPLACE;
break;
+ case TK_A_DB_PERSIST:
+ udev_device_set_db_persist(event->dev);
+ break;
case TK_A_INOTIFY_WATCH:
+ if (event->inotify_watch_final)
+ break;
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->inotify_watch_final = true;
event->inotify_watch = cur->key.watch;
break;
case TK_A_DEVLINK_PRIO:
udev_device_set_devlink_priority(event->dev, cur->key.devlink_prio);
break;
- case TK_A_OWNER:
- {
- char owner[UTIL_NAME_SIZE];
+ case TK_A_OWNER: {
+ char owner[UTIL_NAME_SIZE];
- if (event->owner_final)
- break;
- if (cur->key.op == OP_ASSIGN_FINAL)
- event->owner_final = 1;
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], owner, sizeof(owner));
- event->uid = util_lookup_user(event->udev, owner);
- info(event->udev, "OWNER %u %s:%u\n",
- event->uid,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
+ if (event->owner_final)
break;
- }
- case TK_A_GROUP:
- {
- char group[UTIL_NAME_SIZE];
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->owner_final = true;
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], owner, sizeof(owner));
+ event->uid = util_lookup_user(event->udev, owner);
+ info(event->udev, "OWNER %u %s:%u\n",
+ event->uid,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ break;
+ }
+ case TK_A_GROUP: {
+ char group[UTIL_NAME_SIZE];
- if (event->group_final)
- break;
- if (cur->key.op == OP_ASSIGN_FINAL)
- event->group_final = 1;
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], group, sizeof(group));
- event->gid = util_lookup_group(event->udev, group);
- info(event->udev, "GROUP %u %s:%u\n",
- event->gid,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
+ if (event->group_final)
break;
- }
- case TK_A_MODE:
- {
- char mode[UTIL_NAME_SIZE];
- char *endptr;
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->group_final = true;
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], group, sizeof(group));
+ event->gid = util_lookup_group(event->udev, group);
+ info(event->udev, "GROUP %u %s:%u\n",
+ event->gid,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ break;
+ }
+ case TK_A_MODE: {
+ char mode_str[UTIL_NAME_SIZE];
+ mode_t mode;
+ char *endptr;
- if (event->mode_final)
- break;
- if (cur->key.op == OP_ASSIGN_FINAL)
- event->mode_final = 1;
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], mode, sizeof(mode));
- event->mode = strtol(mode, &endptr, 8);
- if (endptr[0] != '\0') {
- err(event->udev, "invalide mode '%s' set default mode 0660\n", mode);
- event->mode = 0660;
- }
- info(event->udev, "MODE %#o %s:%u\n",
- event->mode,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
+ if (event->mode_final)
+ break;
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], mode_str, sizeof(mode_str));
+ mode = strtol(mode_str, &endptr, 8);
+ if (endptr[0] != '\0') {
+ err(event->udev, "ignoring invalid mode '%s'\n", mode_str);
break;
}
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->mode_final = true;
+ event->mode_set = true;
+ event->mode = mode;
+ info(event->udev, "MODE %#o %s:%u\n",
+ event->mode,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ break;
+ }
case TK_A_OWNER_ID:
if (event->owner_final)
break;
if (cur->key.op == OP_ASSIGN_FINAL)
- event->owner_final = 1;
+ event->owner_final = true;
event->uid = cur->key.uid;
info(event->udev, "OWNER %u %s:%u\n",
event->uid,
if (event->group_final)
break;
if (cur->key.op == OP_ASSIGN_FINAL)
- event->group_final = 1;
+ event->group_final = true;
event->gid = cur->key.gid;
info(event->udev, "GROUP %u %s:%u\n",
event->gid,
if (event->mode_final)
break;
if (cur->key.op == OP_ASSIGN_FINAL)
- event->mode_final = 1;
+ event->mode_final = true;
+ event->mode_set = true;
event->mode = cur->key.mode;
info(event->udev, "MODE %#o %s:%u\n",
event->mode,
&rules->buf[rule->rule.filename_off],
rule->rule.filename_line);
break;
- case TK_A_ENV:
- {
- const char *name = &rules->buf[cur->key.attr_off];
- char *value = &rules->buf[cur->key.value_off];
-
- if (value[0] != '\0') {
- char temp_value[UTIL_NAME_SIZE];
- struct udev_list_entry *entry;
-
- udev_event_apply_format(event, value, temp_value, sizeof(temp_value));
- entry = udev_device_add_property(event->dev, name, temp_value);
- /* store in db, skip private keys */
- if (name[0] != '.')
- udev_list_entry_set_flags(entry, 1);
- } else {
- udev_device_add_property(event->dev, name, NULL);
- }
+ case TK_A_STATIC_NODE:
+ event->static_node = true;
+ break;
+ case TK_A_ENV: {
+ const char *name = &rules->buf[cur->key.attr_off];
+ char *value = &rules->buf[cur->key.value_off];
+
+ if (value[0] != '\0') {
+ char temp_value[UTIL_NAME_SIZE];
+ struct udev_list_entry *entry;
+
+ udev_event_apply_format(event, value, temp_value, sizeof(temp_value));
+ entry = udev_device_add_property(event->dev, name, temp_value);
+ /* store in db, skip private keys */
+ if (name[0] != '.')
+ udev_list_entry_set_num(entry, true);
+ } else {
+ udev_device_add_property(event->dev, name, NULL);
+ }
+ break;
+ }
+ case TK_A_TAG: {
+ char tag[UTIL_PATH_SIZE];
+ const char *p;
+
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], tag, sizeof(tag));
+ if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
+ udev_device_cleanup_tags_list(event->dev);
+ for (p = tag; *p != '\0'; p++) {
+ if ((*p >= 'a' && *p <= 'z') ||
+ (*p >= 'A' && *p <= 'Z') ||
+ (*p >= '0' && *p <= '9') ||
+ *p == '-' || *p == '_')
+ continue;
+ err(event->udev, "ignoring invalid tag name '%s'\n", tag);
break;
}
- case TK_A_TAG:
- udev_device_add_tag(event->dev, &rules->buf[cur->key.value_off]);
+ udev_device_add_tag(event->dev, tag);
break;
- case TK_A_NAME:
- {
- const char *name = &rules->buf[cur->key.value_off];
- char name_str[UTIL_PATH_SIZE];
- int count;
+ }
+ case TK_A_NAME: {
+ const char *name = &rules->buf[cur->key.value_off];
+ char name_str[UTIL_PATH_SIZE];
+ int count;
- if (event->name_final)
- break;
- if (cur->key.op == OP_ASSIGN_FINAL)
- event->name_final = 1;
- udev_event_apply_format(event, name, name_str, sizeof(name_str));
- if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
- count = udev_util_replace_chars(name_str, "/");
- if (count > 0)
- info(event->udev, "%i character(s) replaced\n", count);
- }
- free(event->name);
- event->name = strdup(name_str);
- info(event->udev, "NAME '%s' %s:%u\n",
- event->name,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
+ if (event->name_final)
break;
- }
- case TK_A_DEVLINK:
- {
- char temp[UTIL_PATH_SIZE];
- char filename[UTIL_PATH_SIZE];
- char *pos, *next;
- int count = 0;
-
- if (event->devlink_final)
- break;
- if (major(udev_device_get_devnum(event->dev)) == 0)
- break;
- if (cur->key.op == OP_ASSIGN_FINAL)
- event->devlink_final = 1;
- if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
- udev_device_cleanup_devlinks_list(event->dev);
-
- /* allow multiple symlinks separated by spaces */
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], temp, sizeof(temp));
- if (esc == ESCAPE_UNSET)
- count = udev_util_replace_chars(temp, "/ ");
- else if (esc == ESCAPE_REPLACE)
- count = udev_util_replace_chars(temp, "/");
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->name_final = true;
+ udev_event_apply_format(event, name, name_str, sizeof(name_str));
+ if (esc == ESCAPE_UNSET || esc == ESCAPE_REPLACE) {
+ count = udev_util_replace_chars(name_str, "/");
if (count > 0)
- info(event->udev, "%i character(s) replaced\n" , count);
- dbg(event->udev, "rule applied, added symlink(s) '%s'\n", temp);
- pos = temp;
- while (isspace(pos[0]))
- pos++;
- next = strchr(pos, ' ');
- while (next != NULL) {
- next[0] = '\0';
- info(event->udev, "LINK '%s' %s:%u\n", pos,
- &rules->buf[rule->rule.filename_off], rule->rule.filename_line);
- util_strscpyl(filename, sizeof(filename), udev_get_dev_path(event->udev), "/", pos, NULL);
- udev_device_add_devlink(event->dev, filename, cur->key.devlink_unique);
- while (isspace(next[1]))
- next++;
- pos = &next[1];
- next = strchr(pos, ' ');
- }
- if (pos[0] != '\0') {
- info(event->udev, "LINK '%s' %s:%u\n", pos,
- &rules->buf[rule->rule.filename_off], rule->rule.filename_line);
- util_strscpyl(filename, sizeof(filename), udev_get_dev_path(event->udev), "/", pos, NULL);
- udev_device_add_devlink(event->dev, filename, cur->key.devlink_unique);
- }
+ info(event->udev, "%i character(s) replaced\n", count);
}
+ free(event->name);
+ event->name = strdup(name_str);
+ info(event->udev, "NAME '%s' %s:%u\n",
+ event->name,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
break;
- case TK_A_EVENT_TIMEOUT:
- udev_device_set_event_timeout(event->dev, cur->key.event_timeout);
- break;
- case TK_A_ATTR:
- {
- const char *key_name = &rules->buf[cur->key.attr_off];
- char attr[UTIL_PATH_SIZE];
- char value[UTIL_NAME_SIZE];
- 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);
- attr_subst_subdir(attr, sizeof(attr));
-
- udev_event_apply_format(event, &rules->buf[cur->key.value_off], value, sizeof(value));
- info(event->udev, "ATTR '%s' writing '%s' %s:%u\n", attr, value,
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
- f = fopen(attr, "w");
- if (f != NULL) {
- if (fprintf(f, "%s", value) <= 0)
- err(event->udev, "error writing ATTR{%s}: %m\n", attr);
- fclose(f);
- } else {
- err(event->udev, "error opening ATTR{%s} for writing: %m\n", attr);
- }
+ }
+ case TK_A_DEVLINK: {
+ char temp[UTIL_PATH_SIZE];
+ char filename[UTIL_PATH_SIZE];
+ char *pos, *next;
+ int count = 0;
+
+ if (event->devlink_final)
break;
- }
- case TK_A_RUN:
- {
- struct udev_list_entry *list_entry;
-
- if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
- udev_list_cleanup_entries(event->udev, &event->run_list);
- info(event->udev, "RUN '%s' %s:%u\n",
- &rules->buf[cur->key.value_off],
- &rules->buf[rule->rule.filename_off],
- rule->rule.filename_line);
- list_entry = udev_list_entry_add(event->udev, &event->run_list,
- &rules->buf[cur->key.value_off], NULL, 1, 0);
- if (cur->key.fail_on_error)
- udev_list_entry_set_flags(list_entry, 1);
+ if (major(udev_device_get_devnum(event->dev)) == 0)
break;
+ if (cur->key.op == OP_ASSIGN_FINAL)
+ event->devlink_final = true;
+ if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
+ udev_device_cleanup_devlinks_list(event->dev);
+
+ /* allow multiple symlinks separated by spaces */
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], temp, sizeof(temp));
+ if (esc == ESCAPE_UNSET)
+ count = udev_util_replace_chars(temp, "/ ");
+ else if (esc == ESCAPE_REPLACE)
+ count = udev_util_replace_chars(temp, "/");
+ if (count > 0)
+ info(event->udev, "%i character(s) replaced\n" , count);
+ dbg(event->udev, "rule applied, added symlink(s) '%s'\n", temp);
+ pos = temp;
+ while (isspace(pos[0]))
+ pos++;
+ next = strchr(pos, ' ');
+ while (next != NULL) {
+ next[0] = '\0';
+ info(event->udev, "LINK '%s' %s:%u\n", pos,
+ &rules->buf[rule->rule.filename_off], rule->rule.filename_line);
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(event->udev), "/", pos, NULL);
+ udev_device_add_devlink(event->dev, filename, cur->key.devlink_unique);
+ while (isspace(next[1]))
+ next++;
+ pos = &next[1];
+ next = strchr(pos, ' ');
+ }
+ if (pos[0] != '\0') {
+ info(event->udev, "LINK '%s' %s:%u\n", pos,
+ &rules->buf[rule->rule.filename_off], rule->rule.filename_line);
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(event->udev), "/", pos, NULL);
+ udev_device_add_devlink(event->dev, filename, cur->key.devlink_unique);
+ }
+ break;
+ }
+ case TK_A_ATTR: {
+ const char *key_name = &rules->buf[cur->key.attr_off];
+ char attr[UTIL_PATH_SIZE];
+ char value[UTIL_NAME_SIZE];
+ 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);
+ attr_subst_subdir(attr, sizeof(attr));
+
+ udev_event_apply_format(event, &rules->buf[cur->key.value_off], value, sizeof(value));
+ info(event->udev, "ATTR '%s' writing '%s' %s:%u\n", attr, value,
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ f = fopen(attr, "w");
+ if (f != NULL) {
+ if (fprintf(f, "%s", value) <= 0)
+ err(event->udev, "error writing ATTR{%s}: %m\n", attr);
+ fclose(f);
+ } else {
+ err(event->udev, "error opening ATTR{%s} for writing: %m\n", attr);
}
+ break;
+ }
+ case TK_A_RUN: {
+ struct udev_list_entry *list_entry;
+
+ if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
+ udev_list_cleanup(&event->run_list);
+ info(event->udev, "RUN '%s' %s:%u\n",
+ &rules->buf[cur->key.value_off],
+ &rules->buf[rule->rule.filename_off],
+ rule->rule.filename_line);
+ list_entry = udev_list_entry_add(&event->run_list, &rules->buf[cur->key.value_off], NULL);
+ if (cur->key.fail_on_error)
+ udev_list_entry_set_num(list_entry, true);
+ break;
+ }
case TK_A_GOTO:
if (cur->key.rule_goto == 0)
break;
(unsigned int) (cur - rules->tokens));
}
}
+
+void 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;
+
+ if (rules->tokens == NULL)
+ return;
+
+ cur = &rules->tokens[0];
+ rule = cur;
+ for (;;) {
+ switch (cur->type) {
+ case TK_RULE:
+ /* current rule */
+ rule = cur;
+
+ /* skip rules without a static_node tag */
+ if (!rule->rule.has_static_node)
+ goto next;
+
+ uid = 0;
+ gid = 0;
+ mode = 0;
+ break;
+ case TK_A_OWNER_ID:
+ uid = cur->key.uid;
+ break;
+ case TK_A_GROUP_ID:
+ gid = cur->key.gid;
+ break;
+ case TK_A_MODE_ID:
+ mode = cur->key.mode;
+ break;
+ case TK_A_STATIC_NODE: {
+ char filename[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), udev_get_dev_path(rules->udev), "/",
+ &rules->buf[cur->key.value_off], NULL);
+ if (stat(filename, &stats) != 0)
+ goto next;
+ if (!S_ISBLK(stats.st_mode) && !S_ISCHR(stats.st_mode))
+ goto next;
+ if (mode == 0) {
+ if (gid > 0)
+ mode = 0660;
+ else
+ mode = 0600;
+ }
+ /* set sticky bit, so we do not remove the node on module unload */
+ mode |= 01000;
+ if (mode != (stats.st_mode & 01777)) {
+ chmod(filename, mode);
+ info(rules->udev, "chmod '%s' %#o\n", filename, mode);
+ }
+
+ if ((uid != 0 && uid != stats.st_uid) || (gid != 0 && gid != stats.st_gid)) {
+ chown(filename, uid, gid);
+ info(rules->udev, "chown '%s' %u %u\n", filename, uid, gid);
+ }
+
+ utimensat(AT_FDCWD, filename, NULL, 0);
+ break;
+ }
+ case TK_END:
+ return;
+ }
+
+ cur++;
+ continue;
+next:
+ /* fast-forward to next rule */
+ cur = rule + rule->rule.token_count;
+ continue;
+ }
+}
~ianmdlvl / elogind.git / blobdiff