#include "alloc-util.h"
#include "conf-files.h"
+#include "def.h"
#include "device-private.h"
#include "device-util.h"
#include "dirent-util.h"
#include "util.h"
#define PREALLOC_TOKEN 2048
+#define RULES_DIRS (const char* const*) CONF_PATHS_STRV("udev/rules.d")
struct uid_gid {
unsigned name_off;
};
};
-static const char* const rules_dirs[] = {
- "/etc/udev/rules.d",
- "/run/udev/rules.d",
- UDEVLIBEXECDIR "/rules.d",
- NULL
-};
-
-struct udev_rules {
+struct UdevRules {
usec_t dirs_ts_usec;
ResolveNameTiming resolve_name_timing;
unsigned gids_max;
};
-static char *rules_str(struct udev_rules *rules, unsigned off) {
+static char *rules_str(UdevRules *rules, unsigned off) {
return rules->strbuf->buf + off;
}
-static unsigned rules_add_string(struct udev_rules *rules, const char *s) {
+static unsigned rules_add_string(UdevRules *rules, const char *s) {
return strbuf_add_string(rules->strbuf, s, strlen(s));
}
union {
unsigned attr_off;
unsigned rule_goto;
- mode_t mode;
+ mode_t mode;
uid_t uid;
gid_t gid;
int devlink_prio;
#define MAX_TK 64
struct rule_tmp {
- struct udev_rules *rules;
+ UdevRules *rules;
struct token rule;
struct token token[MAX_TK];
unsigned token_cur;
[OP_REMOVE] = "remove",
[OP_ASSIGN] = "assign",
[OP_ASSIGN_FINAL] = "assign-final",
-} ;
+ };
return operation_strs[type];
}
return token_strs[type];
}
-static void dump_token(struct udev_rules *rules, struct token *token) {
+static void dump_token(UdevRules *rules, struct token *token) {
enum token_type type = token->type;
enum operation_type op = token->key.op;
enum string_glob_type glob = token->key.glob;
}
}
-static void dump_rules(struct udev_rules *rules) {
+static void dump_rules(UdevRules *rules) {
unsigned i;
log_debug("Dumping %u (%zu bytes) tokens, %zu (%zu bytes) strings",
dump_token(rules, &rules->tokens[i]);
}
#else
-static inline void dump_token(struct udev_rules *rules, struct token *token) {}
-static inline void dump_rules(struct udev_rules *rules) {}
+static void dump_token(UdevRules *rules, struct token *token) {}
+static void dump_rules(UdevRules *rules) {}
#endif /* ENABLE_DEBUG_UDEV */
-static int add_token(struct udev_rules *rules, struct token *token) {
+static int add_token(UdevRules *rules, struct token *token) {
/* grow buffer if needed */
if (rules->token_cur+1 >= rules->token_max) {
struct token *tokens;
tokens = reallocarray(rules->tokens, rules->token_max + add, sizeof(struct token));
if (!tokens)
- return -1;
+ return -ENOMEM;
rules->tokens = tokens;
rules->token_max += add;
}
log_device_error_errno(dev, error, "Failed to resolve %s '%s': %m", entity, owner);
}
-static uid_t add_uid(struct udev_rules *rules, const char *owner) {
+static uid_t add_uid(UdevRules *rules, const char *owner) {
unsigned i;
uid_t uid = 0;
unsigned off;
/* lookup, if we know it already */
for (i = 0; i < rules->uids_cur; i++) {
off = rules->uids[i].name_off;
- if (streq(rules_str(rules, off), owner)) {
- uid = rules->uids[i].uid;
- return uid;
- }
+ if (streq(rules_str(rules, off), owner))
+ return rules->uids[i].uid;
}
r = get_user_creds(&owner, &uid, NULL, NULL, NULL, USER_CREDS_ALLOW_MISSING);
if (r < 0)
return uid;
}
-static gid_t add_gid(struct udev_rules *rules, const char *group) {
+static gid_t add_gid(UdevRules *rules, const char *group) {
unsigned i;
gid_t gid = 0;
unsigned off;
/* lookup, if we know it already */
for (i = 0; i < rules->gids_cur; i++) {
off = rules->gids[i].name_off;
- if (streq(rules_str(rules, off), group)) {
- gid = rules->gids[i].gid;
- return gid;
- }
+ if (streq(rules_str(rules, off), group))
+ return rules->gids[i].gid;
}
r = get_group_creds(&group, &gid, USER_CREDS_ALLOW_MISSING);
if (r < 0)
return 0;
}
-static int import_program_into_properties(struct udev_event *event,
+static int import_program_into_properties(UdevEvent *event,
usec_t timeout_usec,
const char *program) {
char result[UTIL_LINE_SIZE];
char *line;
- int err;
+ int r;
- err = udev_event_spawn(event, timeout_usec, true, program, result, sizeof(result));
- if (err < 0)
- return err;
+ r = udev_event_spawn(event, timeout_usec, false, program, result, sizeof result);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ return -EIO;
line = result;
while (line) {
linepos = *line;
if (!linepos || linepos[0] == '\0')
- return -1;
+ return -EINVAL;
/* skip whitespace */
while (isspace(linepos[0]) || linepos[0] == ',')
/* get the key */
if (linepos[0] == '\0')
- return -1;
+ return -EINVAL;
*key = linepos;
for (;;) {
linepos++;
if (linepos[0] == '\0')
- return -1;
+ return -EINVAL;
if (isspace(linepos[0]))
break;
if (linepos[0] == '=')
while (isspace(linepos[0]))
linepos++;
if (linepos[0] == '\0')
- return -1;
+ return -EINVAL;
/* get operation type */
if (linepos[0] == '=' && linepos[1] == '=') {
*op = OP_ASSIGN_FINAL;
linepos += 2;
} else
- return -1;
+ return -EINVAL;
/* terminate key */
temp[0] = '\0';
while (isspace(linepos[0]))
linepos++;
if (linepos[0] == '\0')
- return -1;
+ return -EINVAL;
/* get the value */
if (linepos[0] == '"')
linepos++;
else
- return -1;
+ return -EINVAL;
*value = linepos;
/* terminate */
break;
if (linepos[i] == '\0')
- return -1;
+ return -EINVAL;
/* double quotes can be escaped */
if (linepos[i] == '\\')
return NULL;
}
-static void rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
- enum operation_type op,
- const char *value, const void *data) {
+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;
const char *attr = NULL;
- assert(rule_tmp->token_cur < ELEMENTSOF(rule_tmp->token));
+ if (rule_tmp->token_cur >= ELEMENTSOF(rule_tmp->token))
+ return -E2BIG;
+
memzero(token, sizeof(struct token));
switch (type) {
token->key.type = type;
token->key.op = op;
rule_tmp->token_cur++;
+
+ return 0;
}
-static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp) {
+static int sort_token(UdevRules *rules, struct rule_tmp *rule_tmp) {
unsigned i;
unsigned start = 0;
unsigned end = rule_tmp->token_cur;
+ int r;
for (i = 0; i < rule_tmp->token_cur; i++) {
enum token_type next_val = TK_UNSET;
}
/* add token and mark done */
- if (add_token(rules, &rule_tmp->token[next_idx]) != 0)
- return -1;
+ r = add_token(rules, &rule_tmp->token[next_idx]);
+ if (r < 0)
+ return r;
rule_tmp->token[next_idx].type = TK_UNSET;
/* shrink range */
#define LOG_RULE_WARNING(fmt, ...) LOG_RULE_FULL(LOG_WARNING, fmt, ##__VA_ARGS__)
#define LOG_RULE_DEBUG(fmt, ...) LOG_RULE_FULL(LOG_DEBUG, fmt, ##__VA_ARGS__)
#define LOG_AND_RETURN(fmt, ...) { LOG_RULE_ERROR(fmt, __VA_ARGS__); return; }
+#define LOG_AND_RETURN_ADD_KEY LOG_AND_RETURN("Temporary rule array too small, aborting event processing with %u items", rule_tmp.token_cur);
-static void add_rule(struct udev_rules *rules, char *line,
+static void add_rule(UdevRules *rules, char *line,
const char *filename, unsigned filename_off, unsigned lineno) {
char *linepos;
const char *attr;
.rules = rules,
.rule.type = TK_RULE,
};
+ int r;
/* the offset in the rule is limited to unsigned short */
if (filename_off < USHRT_MAX)
char *value;
enum operation_type op;
- if (get_key(&linepos, &key, &op, &value) != 0) {
+ if (get_key(&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(). */
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_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_ACTION, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_ACTION, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "DEVPATH")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_DEVPATH, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_DEVPATH, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "KERNEL")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_KERNEL, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_KERNEL, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "SUBSYSTEM")) {
if (op > OP_MATCH_MAX)
if (!streq(value, "subsystem"))
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);
+ r = 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);
+ r = rule_add_key(&rule_tmp, TK_M_SUBSYSTEM, op, value, NULL);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "DRIVER")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_DRIVER, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_DRIVER, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "ATTR{")) {
attr = get_key_attribute(key + STRLEN("ATTR"));
LOG_AND_RETURN("Invalid %s operation", "ATTR");
if (op < OP_MATCH_MAX)
- rule_add_key(&rule_tmp, TK_M_ATTR, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_M_ATTR, op, value, attr);
else
- rule_add_key(&rule_tmp, TK_A_ATTR, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_A_ATTR, op, value, attr);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "SYSCTL{")) {
attr = get_key_attribute(key + STRLEN("SYSCTL"));
LOG_AND_RETURN("Invalid %s operation", "ATTR");
if (op < OP_MATCH_MAX)
- rule_add_key(&rule_tmp, TK_M_SYSCTL, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_M_SYSCTL, op, value, attr);
else
- rule_add_key(&rule_tmp, TK_A_SYSCTL, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_A_SYSCTL, op, value, attr);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "SECLABEL{")) {
attr = get_key_attribute(key + STRLEN("SECLABEL"));
if (op == OP_REMOVE)
LOG_AND_RETURN("Invalid %s operation", "SECLABEL");
- rule_add_key(&rule_tmp, TK_A_SECLABEL, op, value, attr);
+ if (rule_add_key(&rule_tmp, TK_A_SECLABEL, op, value, attr) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "KERNELS")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_KERNELS, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "SUBSYSTEMS")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_SUBSYSTEMS, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "DRIVERS")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_DRIVERS, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_DRIVERS, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "ATTRS{")) {
if (op > OP_MATCH_MAX)
LOG_RULE_WARNING("'device' link may not be available in future kernels; please fix");
if (strstr(attr, "../"))
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);
+ if (rule_add_key(&rule_tmp, TK_M_ATTRS, op, value, attr) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "TAGS")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_TAGS, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_TAGS, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "ENV{")) {
attr = get_key_attribute(key + STRLEN("ENV"));
LOG_AND_RETURN("Invalid %s operation", "ENV");
if (op < OP_MATCH_MAX)
- rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_M_ENV, op, value, attr);
else {
if (STR_IN_SET(attr,
"ACTION",
"TAGS"))
LOG_AND_RETURN("Invalid ENV attribute, '%s' cannot be set", attr);
- rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr);
+ r = rule_add_key(&rule_tmp, TK_A_ENV, op, value, attr);
}
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "TAG")) {
if (op < OP_MATCH_MAX)
- rule_add_key(&rule_tmp, TK_M_TAG, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_TAG, op, value, NULL);
else
- rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "PROGRAM")) {
if (op == OP_REMOVE)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_PROGRAM, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "RESULT")) {
if (op > OP_MATCH_MAX)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_M_RESULT, op, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_M_RESULT, op, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "IMPORT")) {
attr = get_key_attribute(key + STRLEN("IMPORT"));
if (cmd >= 0) {
LOG_RULE_DEBUG("IMPORT found builtin '%s', replacing", value);
- rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
+ if (rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd) < 0)
+ LOG_AND_RETURN_ADD_KEY;
continue;
}
}
- rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_IMPORT_PROG, op, value, NULL);
} else if (streq(attr, "builtin")) {
const enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
- if (cmd < 0)
- LOG_RULE_WARNING("IMPORT{builtin} '%s' unknown", value);
- else
- rule_add_key(&rule_tmp, TK_M_IMPORT_BUILTIN, op, value, &cmd);
+ if (cmd < 0) {
+ LOG_RULE_WARNING("IMPORT{builtin} '%s' unknown, ignoring", value);
+ continue;
+ } else
+ r = 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);
+ r = rule_add_key(&rule_tmp, TK_M_IMPORT_FILE, op, value, NULL);
else if (streq(attr, "db"))
- rule_add_key(&rule_tmp, TK_M_IMPORT_DB, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_IMPORT_DB, op, value, NULL);
else if (streq(attr, "cmdline"))
- rule_add_key(&rule_tmp, TK_M_IMPORT_CMDLINE, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_IMPORT_CMDLINE, op, value, NULL);
else if (streq(attr, "parent"))
- rule_add_key(&rule_tmp, TK_M_IMPORT_PARENT, op, value, NULL);
- else
+ r = rule_add_key(&rule_tmp, TK_M_IMPORT_PARENT, op, value, NULL);
+ else {
LOG_RULE_ERROR("Ignoring unknown %s{} type '%s'", "IMPORT", attr);
+ continue;
+ }
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "TEST")) {
mode_t mode = 0;
attr = get_key_attribute(key + STRLEN("TEST"));
if (attr) {
mode = strtol(attr, NULL, 8);
- rule_add_key(&rule_tmp, TK_M_TEST, op, value, &mode);
+ r = rule_add_key(&rule_tmp, TK_M_TEST, op, value, &mode);
} else
- rule_add_key(&rule_tmp, TK_M_TEST, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_TEST, op, value, NULL);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "RUN")) {
attr = get_key_attribute(key + STRLEN("RUN"));
if (streq(attr, "builtin")) {
const enum udev_builtin_cmd cmd = udev_builtin_lookup(value);
- if (cmd < 0)
- LOG_RULE_ERROR("RUN{builtin}: '%s' unknown", value);
- else
- rule_add_key(&rule_tmp, TK_A_RUN_BUILTIN, op, value, &cmd);
+ if (cmd < 0) {
+ LOG_RULE_ERROR("RUN{builtin}: '%s' unknown, ignoring", value);
+ continue;
+ } else
+ r = rule_add_key(&rule_tmp, TK_A_RUN_BUILTIN, op, value, &cmd);
} 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
+ r = rule_add_key(&rule_tmp, TK_A_RUN_PROGRAM, op, value, &cmd);
+ } else {
LOG_RULE_ERROR("Ignoring unknown %s{} type '%s'", "RUN", attr);
+ continue;
+ }
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (streq(key, "LABEL")) {
if (op == OP_REMOVE)
if (op == OP_REMOVE)
LOG_AND_RETURN("Invalid %s operation", key);
- rule_add_key(&rule_tmp, TK_A_GOTO, 0, value, NULL);
+ if (rule_add_key(&rule_tmp, TK_A_GOTO, 0, value, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else if (startswith(key, "NAME")) {
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);
+ r = rule_add_key(&rule_tmp, TK_M_NAME, op, value, NULL);
else {
if (streq(value, "%k")) {
LOG_RULE_WARNING("NAME=\"%%k\" is ignored, because it breaks kernel supplied names; please remove");
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);
+ r = rule_add_key(&rule_tmp, TK_A_NAME, op, value, NULL);
}
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
rule_tmp.rule.rule.can_set_name = true;
} else if (streq(key, "SYMLINK")) {
LOG_AND_RETURN("Invalid %s operation", key);
if (op < OP_MATCH_MAX)
- rule_add_key(&rule_tmp, TK_M_DEVLINK, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_M_DEVLINK, op, value, NULL);
else
- rule_add_key(&rule_tmp, TK_A_DEVLINK, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_DEVLINK, op, value, NULL);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
rule_tmp.rule.rule.can_set_name = true;
} else if (streq(key, "OWNER")) {
uid = strtoul(value, &endptr, 10);
if (endptr[0] == '\0')
- rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
+ r = rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
else if (rules->resolve_name_timing == RESOLVE_NAME_EARLY && !strchr("$%", value[0])) {
uid = add_uid(rules, value);
- rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
+ r = rule_add_key(&rule_tmp, TK_A_OWNER_ID, op, NULL, &uid);
} else if (rules->resolve_name_timing != RESOLVE_NAME_NEVER)
- rule_add_key(&rule_tmp, TK_A_OWNER, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_OWNER, op, value, NULL);
+ else {
+ LOG_RULE_DEBUG("Resolving user name is disabled, ignoring %s=%s", key, value);
+ continue;
+ }
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
rule_tmp.rule.rule.can_set_name = true;
gid = strtoul(value, &endptr, 10);
if (endptr[0] == '\0')
- rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
+ r = rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
else if ((rules->resolve_name_timing == RESOLVE_NAME_EARLY) && !strchr("$%", value[0])) {
gid = add_gid(rules, value);
- rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
+ r = rule_add_key(&rule_tmp, TK_A_GROUP_ID, op, NULL, &gid);
} else if (rules->resolve_name_timing != RESOLVE_NAME_NEVER)
- rule_add_key(&rule_tmp, TK_A_GROUP, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_GROUP, op, value, NULL);
+ else {
+ LOG_RULE_DEBUG("Resolving group name is disabled, ignoring %s=%s", key, value);
+ continue;
+ }
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
rule_tmp.rule.rule.can_set_name = true;
mode = strtol(value, &endptr, 8);
if (endptr[0] == '\0')
- rule_add_key(&rule_tmp, TK_A_MODE_ID, op, NULL, &mode);
+ r = rule_add_key(&rule_tmp, TK_A_MODE_ID, op, NULL, &mode);
else
- rule_add_key(&rule_tmp, TK_A_MODE, op, value, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_MODE, op, value, NULL);
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
+
rule_tmp.rule.rule.can_set_name = true;
} else if (streq(key, "OPTIONS")) {
if (pos) {
int prio = atoi(pos + STRLEN("link_priority="));
- rule_add_key(&rule_tmp, TK_A_DEVLINK_PRIO, op, NULL, &prio);
+ if (rule_add_key(&rule_tmp, TK_A_DEVLINK_PRIO, op, NULL, &prio) < 0)
+ LOG_AND_RETURN_ADD_KEY;
}
pos = strstr(value, "string_escape=");
if (pos) {
pos += STRLEN("string_escape=");
if (startswith(pos, "none"))
- rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_NONE, op, NULL, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_NONE, op, NULL, NULL);
else if (startswith(pos, "replace"))
- rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_REPLACE, op, NULL, NULL);
+ r = rule_add_key(&rule_tmp, TK_A_STRING_ESCAPE_REPLACE, op, NULL, NULL);
+ else {
+ LOG_RULE_ERROR("OPTIONS: unknown string_escape mode '%s', ignoring", pos);
+ r = 0;
+ }
+ if (r < 0)
+ LOG_AND_RETURN_ADD_KEY;
}
pos = strstr(value, "db_persist");
if (pos)
- rule_add_key(&rule_tmp, TK_A_DB_PERSIST, op, NULL, NULL);
+ if (rule_add_key(&rule_tmp, TK_A_DB_PERSIST, op, NULL, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
pos = strstr(value, "nowatch");
if (pos) {
static const int zero = 0;
- rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &zero);
+ if (rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &zero) < 0)
+ LOG_AND_RETURN_ADD_KEY;
} else {
static const int one = 1;
pos = strstr(value, "watch");
if (pos)
- rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &one);
+ if (rule_add_key(&rule_tmp, TK_A_INOTIFY_WATCH, op, NULL, &one) < 0)
+ LOG_AND_RETURN_ADD_KEY;
}
pos = strstr(value, "static_node=");
if (pos) {
pos += STRLEN("static_node=");
- rule_add_key(&rule_tmp, TK_A_STATIC_NODE, op, pos, NULL);
+ if (rule_add_key(&rule_tmp, TK_A_STATIC_NODE, op, pos, NULL) < 0)
+ LOG_AND_RETURN_ADD_KEY;
rule_tmp.rule.rule.has_static_node = true;
}
/* 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 || sort_token(rules, &rule_tmp) != 0)
+ 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) {
+static int parse_file(UdevRules *rules, const char *filename) {
_cleanup_fclose_ FILE *f = NULL;
unsigned first_token;
unsigned filename_off;
return 0;
}
-struct udev_rules *udev_rules_new(ResolveNameTiming resolve_name_timing) {
- struct udev_rules *rules;
- struct token end_token;
- char **files, **f;
+int udev_rules_new(UdevRules **ret_rules, ResolveNameTiming resolve_name_timing) {
+ _cleanup_(udev_rules_freep) UdevRules *rules = NULL;
+ _cleanup_strv_free_ char **files = NULL;
+ char **f;
int r;
assert(resolve_name_timing >= 0 && resolve_name_timing < _RESOLVE_NAME_TIMING_MAX);
- rules = new(struct udev_rules, 1);
+ rules = new(UdevRules, 1);
if (!rules)
- return NULL;
+ return -ENOMEM;
- *rules = (struct udev_rules) {
+ *rules = (UdevRules) {
.resolve_name_timing = resolve_name_timing,
};
/* init token array and string buffer */
rules->tokens = malloc_multiply(PREALLOC_TOKEN, sizeof(struct token));
if (!rules->tokens)
- return udev_rules_free(rules);
+ return -ENOMEM;
rules->token_max = PREALLOC_TOKEN;
rules->strbuf = strbuf_new();
if (!rules->strbuf)
- return udev_rules_free(rules);
+ return -ENOMEM;
udev_rules_check_timestamp(rules);
- r = conf_files_list_strv(&files, ".rules", NULL, 0, rules_dirs);
- if (r < 0) {
- log_error_errno(r, "Failed to enumerate rules files: %m");
- return udev_rules_free(rules);
- }
+ r = conf_files_list_strv(&files, ".rules", NULL, 0, RULES_DIRS);
+ if (r < 0)
+ return log_error_errno(r, "Failed to enumerate rules files: %m");
/*
* The offset value in the rules strct is limited; add all
STRV_FOREACH(f, files)
parse_file(rules, *f);
- strv_free(files);
-
- memzero(&end_token, sizeof(struct token));
- end_token.type = TK_END;
+ 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",
rules->token_max * sizeof(struct token), rules->token_max, sizeof(struct token), rules->strbuf->len);
rules->gids_max = 0;
dump_rules(rules);
- return rules;
+ *ret_rules = TAKE_PTR(rules);
+ return 0;
}
-struct udev_rules *udev_rules_free(struct udev_rules *rules) {
+UdevRules *udev_rules_free(UdevRules *rules) {
if (!rules)
return NULL;
free(rules->tokens);
return mfree(rules);
}
-bool udev_rules_check_timestamp(struct udev_rules *rules) {
+bool udev_rules_check_timestamp(UdevRules *rules) {
if (!rules)
return false;
- return paths_check_timestamp(rules_dirs, &rules->dirs_ts_usec, true);
+ return paths_check_timestamp(RULES_DIRS, &rules->dirs_ts_usec, true);
}
-static int match_key(struct udev_rules *rules, struct token *token, const char *val) {
+static bool match_key(UdevRules *rules, struct token *token, const char *val) {
char *key_value = rules_str(rules, token->key.value_off);
char *pos;
bool match = false;
switch (token->key.glob) {
case GL_PLAIN:
- match = (streq(key_value, val));
+ match = streq(key_value, val);
break;
case GL_GLOB:
match = (fnmatch(key_value, val, 0) == 0);
if (match)
break;
} else {
- match = (streq(s, val));
+ match = streq(s, val);
break;
}
s = &next[1];
match = (val[0] != '\0');
break;
case GL_UNSET:
- return -1;
+ return false;
}
- if (match && (token->key.op == OP_MATCH))
- return 0;
- if (!match && (token->key.op == OP_NOMATCH))
- return 0;
- return -1;
+ return token->key.op == (match ? OP_MATCH : OP_NOMATCH);
}
-static int match_attr(struct udev_rules *rules, sd_device *dev, struct udev_event *event, struct token *cur) {
+static bool match_attr(UdevRules *rules, sd_device *dev, UdevEvent *event, struct token *cur) {
char nbuf[UTIL_NAME_SIZE], vbuf[UTIL_NAME_SIZE];
const char *name, *value;
size_t len;
_fallthrough_;
case SB_NONE:
if (sd_device_get_sysattr_value(dev, name, &value) < 0)
- return -1;
+ return false;
break;
case SB_SUBSYS:
- if (util_resolve_subsys_kernel(name, vbuf, sizeof(vbuf), true) != 0)
- return -1;
+ if (util_resolve_subsys_kernel(name, vbuf, sizeof(vbuf), true) < 0)
+ return false;
value = vbuf;
break;
default:
- return -1;
+ return false;
}
/* remove trailing whitespace, if not asked to match for it */
};
int udev_rules_apply_to_event(
- struct udev_rules *rules,
- struct udev_event *event,
+ UdevRules *rules,
+ UdevEvent *event,
usec_t timeout_usec,
Hashmap *properties_list) {
sd_device *dev = event->dev;
esc = ESCAPE_UNSET;
break;
case TK_M_ACTION:
- if (match_key(rules, cur, action) != 0)
+ if (!match_key(rules, cur, action))
goto nomatch;
break;
case TK_M_DEVPATH:
if (sd_device_get_devpath(dev, &val) < 0)
goto nomatch;
- if (match_key(rules, cur, val) != 0)
+ if (!match_key(rules, cur, val))
goto nomatch;
break;
case TK_M_KERNEL:
if (sd_device_get_sysname(dev, &val) < 0)
goto nomatch;
- if (match_key(rules, cur, val) != 0)
+ if (!match_key(rules, cur, val))
goto nomatch;
break;
case TK_M_DEVLINK: {
bool match = false;
FOREACH_DEVICE_DEVLINK(dev, devlink)
- if (match_key(rules, cur, devlink + STRLEN("/dev/")) == 0) {
+ if (match_key(rules, cur, devlink + STRLEN("/dev/"))) {
match = true;
break;
}
break;
}
case TK_M_NAME:
- if (match_key(rules, cur, event->name) != 0)
+ if (!match_key(rules, cur, event->name))
goto nomatch;
break;
case TK_M_ENV: {
val = NULL;
}
- if (match_key(rules, cur, strempty(val)))
+ if (!match_key(rules, cur, strempty(val)))
goto nomatch;
break;
}
case TK_M_SUBSYSTEM:
if (sd_device_get_subsystem(dev, &val) < 0)
goto nomatch;
- if (match_key(rules, cur, val) != 0)
+ if (!match_key(rules, cur, val))
goto nomatch;
break;
case TK_M_DRIVER:
if (sd_device_get_driver(dev, &val) < 0)
goto nomatch;
- if (match_key(rules, cur, val) != 0)
+ if (!match_key(rules, cur, val))
goto nomatch;
break;
case TK_M_ATTR:
- if (match_attr(rules, dev, event, cur) != 0)
+ if (!match_attr(rules, dev, event, cur))
goto nomatch;
break;
case TK_M_SYSCTL: {
len = strlen(value);
while (len > 0 && isspace(value[--len]))
value[len] = '\0';
- if (match_key(rules, cur, value) != 0)
+ if (!match_key(rules, cur, value))
goto nomatch;
break;
}
case TK_M_KERNELS:
if (sd_device_get_sysname(event->dev_parent, &val) < 0)
goto try_parent;
- if (match_key(rules, key, val) != 0)
+ if (!match_key(rules, key, val))
goto try_parent;
break;
case TK_M_SUBSYSTEMS:
if (sd_device_get_subsystem(event->dev_parent, &val) < 0)
goto try_parent;
- if (match_key(rules, key, val) != 0)
+ if (!match_key(rules, key, val))
goto try_parent;
break;
case TK_M_DRIVERS:
if (sd_device_get_driver(event->dev_parent, &val) < 0)
goto try_parent;
- if (match_key(rules, key, val) != 0)
+ if (!match_key(rules, key, val))
goto try_parent;
break;
case TK_M_ATTRS:
- if (match_attr(rules, event->dev_parent, event, key) != 0)
+ if (!match_attr(rules, event->dev_parent, event, key))
goto try_parent;
break;
case TK_M_TAGS: {
int match;
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), filename, sizeof(filename), false);
- if (util_resolve_subsys_kernel(filename, filename, sizeof(filename), false) != 0) {
+ if (util_resolve_subsys_kernel(filename, filename, sizeof(filename), false) < 0) {
if (filename[0] != '/') {
char tmp[UTIL_PATH_SIZE];
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (udev_event_spawn(event, timeout_usec, true, program, result, sizeof(result)) < 0) {
+ if (udev_event_spawn(event, timeout_usec, true, program, result, sizeof(result)) != 0) {
if (cur->key.op != OP_NOMATCH)
goto nomatch;
} else {
char import[UTIL_PATH_SIZE];
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), import, sizeof(import), false);
- if (import_file_into_properties(dev, import) != 0)
+ if (import_file_into_properties(dev, import) < 0)
if (cur->key.op != OP_NOMATCH)
goto nomatch;
break;
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
- if (import_program_into_properties(event, timeout_usec, import) != 0)
+ if (import_program_into_properties(event, timeout_usec, import) < 0)
if (cur->key.op != OP_NOMATCH)
goto nomatch;
break;
char import[UTIL_PATH_SIZE];
udev_event_apply_format(event, rules_str(rules, cur->key.value_off), import, sizeof(import), false);
- if (import_parent_into_properties(dev, import) != 0)
+ if (import_parent_into_properties(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)
+ if (!match_key(rules, cur, event->program_result))
goto nomatch;
break;
case TK_A_STRING_ESCAPE_NONE:
r = hashmap_put(event->seclabel_list, name, label);
if (r < 0)
return log_oom();
-
- name = label = NULL;
-
log_device_debug(dev, "SECLABEL{%s}='%s' %s:%u",
name, label,
rules_str(rules, rule->rule.filename_off),
rule->rule.filename_line);
+ name = label = NULL;
+
break;
}
case TK_A_ENV: {
const char *key_name;
key_name = rules_str(rules, cur->key.attr_off);
- if (util_resolve_subsys_kernel(key_name, attr, sizeof(attr), false) != 0 &&
+ if (util_resolve_subsys_kernel(key_name, attr, sizeof(attr), false) < 0 &&
sd_device_get_syspath(dev, &val) >= 0)
strscpyl(attr, sizeof(attr), val, "/", key_name, NULL);
attr_subst_subdir(attr, sizeof(attr));
case TK_A_RUN_PROGRAM: {
_cleanup_free_ char *cmd = NULL;
- if (IN_SET(cur->key.op, OP_ASSIGN, OP_ASSIGN_FINAL)) {
- void *p;
-
- while ((p = hashmap_steal_first_key(event->run_list)))
- free(p);
- }
+ if (IN_SET(cur->key.op, OP_ASSIGN, OP_ASSIGN_FINAL))
+ hashmap_clear_free_key(event->run_list);
r = hashmap_ensure_allocated(&event->run_list, NULL);
if (r < 0)
return 0;
}
-int udev_rules_apply_static_dev_perms(struct udev_rules *rules) {
+int udev_rules_apply_static_dev_perms(UdevRules *rules) {
struct token *cur;
struct token *rule;
uid_t uid = 0;
goto next;
strscpyl(device_node, sizeof(device_node), "/dev/", rules_str(rules, cur->key.value_off), NULL);
- if (stat(device_node, &stats) != 0)
+ if (stat(device_node, &stats) < 0)
break;
if (!S_ISBLK(stats.st_mode) && !S_ISCHR(stats.st_mode))
break;
projects / thirdparty / systemd.git / blobdiff