X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fudev%2Fudev-rules.c;h=e90829811bff15376a9051bc3084313704ca0ae9;hp=8ace7050dbdf49432d4524bae049582d66877ef2;hb=29804cc1e0f37ee34301530fd7f1eb8550be464e;hpb=84b6ad702e64db534f67ce32d4dd2fec00a16784 diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c index 8ace7050d..e90829811 100644 --- a/src/udev/udev-rules.c +++ b/src/udev/udev-rules.c @@ -34,6 +34,7 @@ #include "conf-files.h" #include "strbuf.h" #include "strv.h" +#include "util.h" #define PREALLOC_TOKEN 2048 @@ -45,10 +46,15 @@ struct uid_gid { }; }; +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 */ @@ -155,6 +161,7 @@ enum token_type { 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_NAME, /* val */ TK_A_DEVLINK, /* val */ @@ -290,6 +297,7 @@ static const char *token_str(enum token_type type) [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", @@ -321,7 +329,7 @@ static void dump_token(struct udev_rules *rules, struct token *token) 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]); @@ -353,65 +361,68 @@ static void dump_token(struct udev_rules *rules, struct token *token) 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_A_SECLABEL: + log_debug("%s %s '%s' '%s'", token_str(type), operation_str(op), attr, value); break; case TK_M_EVENT_TIMEOUT: - log_debug("%s %u\n", token_str(type), token->key.event_timeout); + log_debug("%s %u", token_str(type), token->key.event_timeout); 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; } } @@ -420,12 +431,12 @@ 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 @@ -545,6 +556,7 @@ static int import_property_from_string(struct udev_device *dev, char *line) char *key; char *val; size_t len; + struct udev_list_entry *entry; /* find key */ key = line; @@ -588,29 +600,18 @@ static int import_property_from_string(struct udev_device *dev, char *line) /* 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); - 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); - } + entry = udev_device_add_property(dev, key, val); + /* store in db, skip private keys */ + if (key[0] != '.') + udev_list_entry_set_num(entry, true); + return 0; } @@ -702,18 +703,18 @@ static int wait_for_file(struct udev_device *dev, const char *file, int timeout) /* 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; } @@ -853,7 +854,7 @@ static const char *get_key_attribute(struct udev *udev, char *str) 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'; @@ -869,7 +870,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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: @@ -899,6 +900,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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: @@ -910,6 +912,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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); @@ -941,9 +944,6 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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; @@ -953,7 +953,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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; } @@ -964,7 +964,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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) { @@ -991,7 +991,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, } 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) @@ -1004,7 +1004,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type, 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; @@ -1052,7 +1052,7 @@ static int add_rule(struct udev_rules *rules, char *line, const char *attr; struct rule_tmp rule_tmp; - memset(&rule_tmp, 0x00, sizeof(struct rule_tmp)); + memzero(&rule_tmp, sizeof(struct rule_tmp)); rule_tmp.rules = rules; rule_tmp.rule.type = TK_RULE; /* the offset in the rule is limited to unsigned short */ @@ -1066,12 +1066,32 @@ static int add_rule(struct udev_rules *rules, char *line, 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 (*linepos != '\n') { + char buf[2] = {linepos[1]}; + _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", + filename, lineno, linepos - line + 1, tmp); + if (linepos[1] == '#') + 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); @@ -1080,7 +1100,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1089,7 +1109,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1098,7 +1118,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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 */ @@ -1106,7 +1126,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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 @@ -1116,7 +1136,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1126,7 +1146,7 @@ static int add_rule(struct udev_rules *rules, char *line, if (startswith(key, "ATTR{")) { attr = get_key_attribute(rules->udev, key + sizeof("ATTR")-1); if (attr == NULL) { - log_error("error parsing ATTR attribute\n"); + log_error("error parsing ATTR attribute"); goto invalid; } if (op < OP_MATCH_MAX) { @@ -1137,9 +1157,20 @@ static int add_rule(struct udev_rules *rules, char *line, continue; } + if (startswith(key, "SECLABEL{")) { + attr = get_key_attribute(rules->udev, key + sizeof("SECLABEL")-1); + if (!attr) { + log_error("error parsing SECLABEL attribute"); + 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); @@ -1148,7 +1179,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1157,7 +1188,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1166,12 +1197,12 @@ static int add_rule(struct udev_rules *rules, char *line, 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); if (attr == NULL) { - log_error("error parsing ATTRS attribute\n"); + log_error("error parsing ATTRS attribute"); goto invalid; } if (startswith(attr, "device/")) @@ -1186,7 +1217,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1196,7 +1227,7 @@ static int add_rule(struct udev_rules *rules, char *line, if (startswith(key, "ENV{")) { attr = get_key_attribute(rules->udev, key + sizeof("ENV")-1); if (attr == NULL) { - log_error("error parsing ENV attribute\n"); + log_error("error parsing ENV attribute"); goto invalid; } if (op < OP_MATCH_MAX) { @@ -1221,7 +1252,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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) @@ -1245,7 +1276,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1255,7 +1286,7 @@ static int add_rule(struct udev_rules *rules, char *line, if (startswith(key, "IMPORT")) { attr = get_key_attribute(rules->udev, key + sizeof("IMPORT")-1); 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 (streq(attr, "program")) { @@ -1265,7 +1296,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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; @@ -1278,7 +1309,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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")) { @@ -1288,7 +1319,7 @@ static int add_rule(struct udev_rules *rules, char *line, } 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; } @@ -1296,7 +1327,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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); @@ -1320,13 +1351,13 @@ static int add_rule(struct udev_rules *rules, char *line, 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("IMPORT{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; @@ -1476,7 +1507,7 @@ static int add_rule(struct udev_rules *rules, char *line, 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; } @@ -1491,7 +1522,7 @@ static int add_rule(struct udev_rules *rules, char *line, return 0; invalid: - log_error("invalid rule '%s:%u'\n", filename, lineno); + log_error("invalid rule '%s:%u'", filename, lineno); return -1; } @@ -1505,10 +1536,10 @@ static int parse_file(struct udev_rules *rules, const char *filename) unsigned int i; if (null_or_empty_path(filename)) { - log_debug("skip empty file: %s\n", filename); + log_debug("skip empty file: %s", filename); return 0; } - log_debug("read rules file: %s\n", filename); + log_debug("read rules file: %s", filename); f = fopen(filename, "re"); if (f == NULL) @@ -1546,7 +1577,7 @@ static int parse_file(struct udev_rules *rules, const char *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); @@ -1570,7 +1601,7 @@ static int parse_file(struct udev_rules *rules, const char *filename) 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; @@ -1601,28 +1632,11 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names) 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(usec_t)); - if(!rules->dirs_ts_usec) - return udev_rules_unref(rules); udev_rules_check_timestamp(rules); - r = conf_files_list_strv(&files, ".rules", NULL, (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("failed to enumerate rules files: %s", strerror(-r)); return udev_rules_unref(rules); } @@ -1638,14 +1652,14 @@ struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names) 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); @@ -1672,40 +1686,16 @@ struct udev_rules *udev_rules_unref(struct udev_rules *rules) 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; + 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) @@ -2033,7 +2023,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event break; } case TK_M_EVENT_TIMEOUT: - log_debug("OPTIONS event_timeout=%u\n", cur->key.event_timeout); + log_debug("OPTIONS event_timeout=%u", cur->key.event_timeout); event->timeout_usec = cur->key.event_timeout * 1000 * 1000; break; case TK_M_PROGRAM: { @@ -2045,7 +2035,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2060,7 +2050,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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) @@ -2081,7 +2071,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2097,7 +2087,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2112,14 +2102,14 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event } 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) @@ -2227,7 +2217,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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", + log_debug("OWNER %u %s:%u", event->uid, rules_str(rules, rule->rule.filename_off), rule->rule.filename_line); @@ -2243,7 +2233,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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", + log_debug("GROUP %u %s:%u", event->gid, rules_str(rules, rule->rule.filename_off), rule->rule.filename_line); @@ -2259,14 +2249,14 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2279,7 +2269,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2291,7 +2281,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2303,11 +2293,25 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2352,7 +2356,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event (*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); @@ -2372,7 +2376,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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/")))) { @@ -2383,7 +2387,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event } 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); @@ -2411,14 +2415,14 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); strscpyl(filename, sizeof(filename), "/dev/", pos, NULL); udev_device_add_devlink(event->dev, filename); @@ -2428,7 +2432,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); strscpyl(filename, sizeof(filename), "/dev/", pos, NULL); udev_device_add_devlink(event->dev, filename); @@ -2446,16 +2450,16 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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("error writing ATTR{%s}: %m", attr); fclose(f); } else { - log_error("error opening ATTR{%s} for writing: %m\n", attr); + log_error("error opening ATTR{%s} for writing: %m", attr); } break; } @@ -2465,7 +2469,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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); @@ -2485,7 +2489,7 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event 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; } @@ -2555,22 +2559,18 @@ int udev_rules_apply_static_dev_perms(struct udev_rules *rules) /* we assure, that the permissions tokens are sorted before the static token */ 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) - goto next; - if (!S_ISBLK(stats.st_mode) && !S_ISCHR(stats.st_mode)) - goto next; + /* export the tags to a directory as symlinks, allowing otherwise dead nodes to be tagged */ if (tags) { - /* Export the tags to a directory as symlinks, allowing otherwise dead nodes to be tagged */ - 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) { - log_error("failed to create %s: %s\n", tags_dir, strerror(-r)); + log_error("failed to create %s: %s", tags_dir, strerror(-r)); return r; } @@ -2579,13 +2579,22 @@ int udev_rules_apply_static_dev_perms(struct udev_rules *rules) strscpyl(tag_symlink, sizeof(tag_symlink), tags_dir, unescaped_filename, NULL); r = symlink(device_node, tag_symlink); if (r < 0 && errno != EEXIST) { - log_error("failed to create symlink %s -> %s: %s\n", tag_symlink, device_node, strerror(errno)); + log_error("failed to create symlink %s -> %s: %m", tag_symlink, device_node); return -errno; } else r = 0; } } + /* don't touch the permissions if only the tags were set */ + if (mode == 0 && uid == 0 && gid == 0) + break; + + if (stat(device_node, &stats) != 0) + break; + if (!S_ISBLK(stats.st_mode) && !S_ISCHR(stats.st_mode)) + break; + if (mode == 0) { if (gid > 0) mode = 0660; @@ -2593,13 +2602,21 @@ int udev_rules_apply_static_dev_perms(struct udev_rules *rules) mode = 0600; } if (mode != (stats.st_mode & 01777)) { - chmod(device_node, mode); - log_debug("chmod '%s' %#o\n", device_node, 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(device_node, uid, gid); - log_debug("chown '%s' %u %u\n", device_node, 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, device_node, NULL, 0);