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Diffstat (limited to 'src/udev/udev-rules.c')
-rw-r--r--src/udev/udev-rules.c353
1 files changed, 150 insertions, 203 deletions
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index 689da7451c..5c39c9b874 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -822,12 +822,13 @@ static const char *get_key_attribute(struct udev *udev, char *str) {
return NULL;
}
-static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
- enum operation_type op,
- const char *value, const void *data) {
- struct token *token = &rule_tmp->token[rule_tmp->token_cur];
+static void rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
+ enum operation_type op,
+ const char *value, const void *data) {
+ struct token *token = rule_tmp->token + rule_tmp->token_cur;
const char *attr = NULL;
+ assert(rule_tmp->token_cur < ELEMENTSOF(rule_tmp->token));
memzero(token, sizeof(struct token));
switch (type) {
@@ -910,8 +911,7 @@ 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", type);
- return -1;
+ assert_not_reached("wrong type");
}
if (value != NULL && type < TK_M_MAX) {
@@ -960,11 +960,6 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
token->key.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");
- return -1;
- }
- return 0;
}
static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp) {
@@ -1001,6 +996,11 @@ static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp) {
return 0;
}
+#define LOG_RULE_ERROR(fmt, ...) log_error("Invalid rule %s:%u: " fmt, filename, lineno, ##__VA_ARGS__)
+#define LOG_RULE_WARNING(fmt, ...) log_warning("%s:%u: " fmt, filename, lineno, ##__VA_ARGS__)
+#define LOG_RULE_DEBUG(fmt, ...) log_debug("%s:%u: " fmt, filename, lineno, ##__VA_ARGS__)
+#define LOG_AND_RETURN(fmt, ...) { LOG_RULE_ERROR(fmt, __VA_ARGS__); return; }
+
static void add_rule(struct udev_rules *rules, char *line,
const char *filename, unsigned int filename_off, unsigned int lineno) {
char *linepos;
@@ -1043,58 +1043,54 @@ static void add_rule(struct udev_rules *rules, char *line,
break;
}
+ if (rule_tmp.token_cur >= ELEMENTSOF(rule_tmp.token))
+ LOG_AND_RETURN("temporary rule array too small, aborting event processing with %u items", rule_tmp.token_cur);
+
if (streq(key, "ACTION")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid ACTION operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_ACTION, op, value, NULL);
} else if (streq(key, "DEVPATH")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid DEVPATH operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_DEVPATH, op, value, NULL);
} else if (streq(key, "KERNEL")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid KERNEL operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_KERNEL, op, value, NULL);
} else if (streq(key, "SUBSYSTEM")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid SUBSYSTEM operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
/* bus, class, subsystem events should all be the same */
if (STR_IN_SET(value, "subsystem", "bus", "class")) {
if (!streq(value, "subsystem"))
- log_error("'%s' must be specified as 'subsystem'; please fix it in %s:%u",
- value, filename, lineno);
+ LOG_RULE_WARNING("'%s' must be specified as 'subsystem'; please fix", value);
+
rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, "subsystem|class|bus", NULL);
} else
rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, value, NULL);
} else if (streq(key, "DRIVER")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid DRIVER operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_DRIVER, op, value, NULL);
} else if (startswith(key, "ATTR{")) {
attr = get_key_attribute(rules->udev, key + strlen("ATTR"));
- if (attr == NULL) {
- log_error("error parsing ATTR attribute");
- goto invalid;
- }
- if (op == OP_REMOVE) {
- log_error("invalid ATTR operation");
- goto invalid;
- }
+ if (attr == NULL)
+ LOG_AND_RETURN("error parsing %s attribute", "ATTR");
+
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "ATTR");
+
if (op < OP_MATCH_MAX)
rule_add_key(&rule_tmp, TK_M_ATTR, op, value, attr);
else
@@ -1102,14 +1098,12 @@ static void add_rule(struct udev_rules *rules, char *line,
} else if (startswith(key, "SYSCTL{")) {
attr = get_key_attribute(rules->udev, key + strlen("SYSCTL"));
- if (attr == NULL) {
- log_error("error parsing SYSCTL attribute");
- goto invalid;
- }
- if (op == OP_REMOVE) {
- log_error("invalid SYSCTL operation");
- goto invalid;
- }
+ if (attr == NULL)
+ LOG_AND_RETURN("error parsing %s attribute", "ATTR");
+
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "ATTR");
+
if (op < OP_MATCH_MAX)
rule_add_key(&rule_tmp, TK_M_SYSCTL, op, value, attr);
else
@@ -1117,77 +1111,63 @@ static void add_rule(struct udev_rules *rules, char *line,
} else if (startswith(key, "SECLABEL{")) {
attr = get_key_attribute(rules->udev, key + strlen("SECLABEL"));
- if (!attr) {
- log_error("error parsing SECLABEL attribute");
- goto invalid;
- }
- if (op == OP_REMOVE) {
- log_error("invalid SECLABEL operation");
- goto invalid;
- }
+ if (attr == NULL)
+ LOG_AND_RETURN("error parsing %s attribute", "SECLABEL");
+
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "SECLABEL");
rule_add_key(&rule_tmp, TK_A_SECLABEL, op, value, attr);
} else if (streq(key, "KERNELS")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid KERNELS operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL);
} else if (streq(key, "SUBSYSTEMS")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid SUBSYSTEMS operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL);
} else if (streq(key, "DRIVERS")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid DRIVERS operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_DRIVERS, op, value, NULL);
} else if (startswith(key, "ATTRS{")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid ATTRS operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", "ATTRS");
+
attr = get_key_attribute(rules->udev, key + strlen("ATTRS"));
- if (attr == NULL) {
- log_error("error parsing ATTRS attribute");
- goto invalid;
- }
+ if (attr == NULL)
+ LOG_AND_RETURN("error parsing %s attribute", "ATTRS");
+
if (startswith(attr, "device/"))
- log_error("the 'device' link may not be available in a future kernel, "
- "please fix it in %s:%u", filename, lineno);
- else if (strstr(attr, "../") != NULL)
- log_error("do not reference parent sysfs directories directly, "
- "it may break with a future kernel, please fix it in %s:%u", filename, lineno);
+ LOG_RULE_WARNING("'device' link may not be available in future kernels; please fix");
+ if (strstr(attr, "../") != NULL)
+ LOG_RULE_WARNING("direct reference to parent sysfs directory, may break in future kernels; please fix");
rule_add_key(&rule_tmp, TK_M_ATTRS, op, value, attr);
} else if (streq(key, "TAGS")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid TAGS operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_TAGS, op, value, NULL);
} else if (startswith(key, "ENV{")) {
attr = get_key_attribute(rules->udev, key + strlen("ENV"));
- if (attr == NULL) {
- 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;
- } else {
+ if (attr == NULL)
+ LOG_AND_RETURN("error parsing %s attribute", "ENV");
+
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "ENV");
+
+ if (op < OP_MATCH_MAX)
+ rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr);
+ else {
if (STR_IN_SET(attr,
"ACTION",
"SUBSYSTEM",
@@ -1199,12 +1179,10 @@ static void add_rule(struct udev_rules *rules, char *line,
"DEVNAME",
"DEVLINKS",
"DEVPATH",
- "TAGS")) {
- 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)
- goto invalid;
+ "TAGS"))
+ LOG_AND_RETURN("invalid ENV attribute, '%s' cannot be set", attr);
+
+ rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr);
}
} else if (streq(key, "TAG")) {
@@ -1214,68 +1192,62 @@ static void add_rule(struct udev_rules *rules, char *line,
rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
} else if (streq(key, "PROGRAM")) {
- if (op == OP_REMOVE) {
- log_error("invalid PROGRAM operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL);
} else if (streq(key, "RESULT")) {
- if (op > OP_MATCH_MAX) {
- log_error("invalid RESULT operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_M_RESULT, op, value, NULL);
} else if (startswith(key, "IMPORT")) {
attr = get_key_attribute(rules->udev, key + strlen("IMPORT"));
if (attr == NULL) {
- log_error("IMPORT{} type missing, ignoring IMPORT %s:%u", filename, lineno);
+ LOG_RULE_WARNING("ignoring IMPORT{} with missing type");
continue;
}
- if (op == OP_REMOVE) {
- log_error("invalid IMPORT operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "IMPORT");
+
if (streq(attr, "program")) {
/* find known built-in command */
if (value[0] != '/') {
- enum udev_builtin_cmd cmd;
+ const enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
- cmd = udev_builtin_lookup(value);
if (cmd < UDEV_BUILTIN_MAX) {
- log_debug("IMPORT found builtin '%s', replacing %s:%u",
- value, filename, lineno);
+ LOG_RULE_DEBUG("IMPORT found builtin '%s', replacing", value);
rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
continue;
}
}
rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
} else if (streq(attr, "builtin")) {
- enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
+ const enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
- if (cmd < UDEV_BUILTIN_MAX)
- rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
+ if (cmd >= UDEV_BUILTIN_MAX)
+ LOG_RULE_WARNING("IMPORT{builtin} '%s' unknown", value);
else
- log_error("IMPORT{builtin}: '%s' unknown %s:%u", value, filename, lineno);
- } else if (streq(attr, "file")) {
+ rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
+ } else if (streq(attr, "file"))
rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
- } else if (streq(attr, "db")) {
+ else if (streq(attr, "db"))
rule_add_key(&rule_tmp, TK_M_IMPORT_DB, op, value, NULL);
- } else if (streq(attr, "cmdline")) {
+ else if (streq(attr, "cmdline"))
rule_add_key(&rule_tmp, TK_M_IMPORT_CMDLINE, op, value, NULL);
- } else if (streq(attr, "parent")) {
+ 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", filename, lineno);
+ else
+ LOG_RULE_ERROR("ignoring unknown %s{} type '%s'", "IMPORT", attr);
} else if (startswith(key, "TEST")) {
mode_t mode = 0;
- if (op > OP_MATCH_MAX) {
- log_error("invalid TEST operation");
- goto invalid;
- }
+ if (op > OP_MATCH_MAX)
+ LOG_AND_RETURN("invalid %s operation", "TEST");
+
attr = get_key_attribute(rules->udev, key + strlen("TEST"));
if (attr != NULL) {
mode = strtol(attr, NULL, 8);
@@ -1287,55 +1259,48 @@ static void add_rule(struct udev_rules *rules, char *line,
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 (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", "RUN");
if (streq(attr, "builtin")) {
- enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
+ const 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("RUN{builtin}: '%s' unknown %s:%u", value, filename, lineno);
+ LOG_RULE_ERROR("RUN{builtin}: '%s' unknown", value);
} else if (streq(attr, "program")) {
const 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", filename, lineno);
+ LOG_RULE_ERROR("ignoring unknown %s{} type '%s'", "RUN", attr);
} else if (streq(key, "LABEL")) {
- if (op == OP_REMOVE) {
- log_error("invalid LABEL operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_tmp.rule.rule.label_off = rules_add_string(rules, value);
} else if (streq(key, "GOTO")) {
- if (op == OP_REMOVE) {
- log_error("invalid GOTO operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
+
rule_add_key(&rule_tmp, TK_A_GOTO, 0, value, NULL);
} else if (startswith(key, "NAME")) {
- if (op == OP_REMOVE) {
- log_error("invalid NAME operation");
- goto invalid;
- }
- if (op < OP_MATCH_MAX) {
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
+
+ if (op < OP_MATCH_MAX)
rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL);
- } else {
+ else {
if (streq(value, "%k")) {
- log_error("NAME=\"%%k\" is ignored, because it breaks kernel supplied names, "
- "please remove it from %s:%u\n", filename, lineno);
+ LOG_RULE_WARNING("NAME=\"%%k\" is ignored, because it breaks kernel supplied names; please remove");
continue;
}
- if (value[0] == '\0') {
- log_debug("NAME=\"\" is ignored, because udev will not delete any device nodes, "
- "please remove it from %s:%u\n", filename, lineno);
+ if (isempty(value)) {
+ LOG_RULE_DEBUG("NAME=\"\" is ignored, because udev will not delete any device nodes; please remove");
continue;
}
rule_add_key(&rule_tmp, TK_A_NAME, op, value, NULL);
@@ -1343,10 +1308,9 @@ static void add_rule(struct udev_rules *rules, char *line,
rule_tmp.rule.rule.can_set_name = true;
} else if (streq(key, "SYMLINK")) {
- if (op == OP_REMOVE) {
- log_error("invalid SYMLINK operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
+
if (op < OP_MATCH_MAX)
rule_add_key(&rule_tmp, TK_M_DEVLINK, op, value, NULL);
else
@@ -1357,15 +1321,13 @@ static void add_rule(struct udev_rules *rules, char *line,
uid_t uid;
char *endptr;
- if (op == OP_REMOVE) {
- log_error("invalid OWNER operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
uid = strtoul(value, &endptr, 10);
- if (endptr[0] == '\0') {
+ if (endptr[0] == '\0')
rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
- } else if ((rules->resolve_names > 0) && strchr("$%", value[0]) == NULL) {
+ else if (rules->resolve_names > 0 && strchr("$%", value[0]) == NULL) {
uid = add_uid(rules, value);
rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
} else if (rules->resolve_names >= 0)
@@ -1377,15 +1339,13 @@ static void add_rule(struct udev_rules *rules, char *line,
gid_t gid;
char *endptr;
- if (op == OP_REMOVE) {
- log_error("invalid GROUP operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
gid = strtoul(value, &endptr, 10);
- if (endptr[0] == '\0') {
+ if (endptr[0] == '\0')
rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
- } else if ((rules->resolve_names > 0) && strchr("$%", value[0]) == NULL) {
+ else if ((rules->resolve_names > 0) && strchr("$%", value[0]) == NULL) {
gid = add_gid(rules, value);
rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
} else if (rules->resolve_names >= 0)
@@ -1397,10 +1357,8 @@ static void add_rule(struct udev_rules *rules, char *line,
mode_t mode;
char *endptr;
- if (op == OP_REMOVE) {
- log_error("invalid MODE operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
mode = strtol(value, &endptr, 8);
if (endptr[0] == '\0')
@@ -1412,21 +1370,19 @@ static void add_rule(struct udev_rules *rules, char *line,
} else if (streq(key, "OPTIONS")) {
const char *pos;
- if (op == OP_REMOVE) {
- log_error("invalid OPTIONS operation");
- goto invalid;
- }
+ if (op == OP_REMOVE)
+ LOG_AND_RETURN("invalid %s operation", key);
pos = strstr(value, "link_priority=");
if (pos != NULL) {
- int prio = atoi(&pos[strlen("link_priority=")]);
+ 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=")];
+ pos += strlen("string_escape=");
if (startswith(pos, "none"))
rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_NONE, op, NULL, NULL);
else if (startswith(pos, "replace"))
@@ -1453,28 +1409,19 @@ static void add_rule(struct udev_rules *rules, char *line,
pos = strstr(value, "static_node=");
if (pos != NULL) {
- rule_add_key(&rule_tmp, TK_A_STATIC_NODE, op, &pos[strlen("static_node=")], NULL);
+ pos += strlen("static_node=");
+ rule_add_key(&rule_tmp, TK_A_STATIC_NODE, op, pos, NULL);
rule_tmp.rule.rule.has_static_node = true;
}
- } else {
- log_error("unknown key '%s' in %s:%u", key, filename, lineno);
- goto invalid;
- }
+ } else
+ LOG_AND_RETURN("unknown key '%s'", key);
}
- /* add rule token */
+ /* add rule token and sort tokens */
rule_tmp.rule.rule.token_count = 1 + rule_tmp.token_cur;
- if (add_token(rules, &rule_tmp.rule) != 0)
- goto invalid;
-
- /* add tokens to list, sorted by type */
- if (sort_token(rules, &rule_tmp) != 0)
- goto invalid;
-
- return;
-invalid:
- log_error("invalid rule '%s:%u'", filename, lineno);
+ if (add_token(rules, &rule_tmp.rule) != 0 || sort_token(rules, &rule_tmp) != 0)
+ LOG_RULE_ERROR("failed to add rule token");
}
static int parse_file(struct udev_rules *rules, const char *filename) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-10 02:39:12 +0000