#define PREALLOC_TOKEN 2048
#define PREALLOC_STRBUF 32 * 1024
+struct uid_gid {
+ unsigned int name_off;
+ union {
+ uid_t uid;
+ gid_t gid;
+ };
+};
+
/* KEY=="", KEY!="", KEY+="", KEY="", KEY:="" */
+struct udev_rules {
+ struct udev *udev;
+ int resolve_names;
+
+ /* every key in the rules file becomes a token */
+ struct token *tokens;
+ unsigned int token_cur;
+ unsigned int token_max;
+
+ /* all key strings are copied to a single string buffer */
+ char *buf;
+ size_t buf_cur;
+ size_t buf_max;
+ unsigned int buf_count;
+
+ /* during rule parsing, we cache uid/gid lookup results */
+ struct uid_gid *uids;
+ unsigned int uids_cur;
+ unsigned int uids_max;
+ struct uid_gid *gids;
+ unsigned int gids_cur;
+ unsigned int gids_max;
+};
+
enum operation_type {
OP_UNSET,
OP_ASSIGN_FINAL,
};
-static const char *operation_str[] = {
- [OP_UNSET] = "UNSET",
- [OP_MATCH] = "match",
- [OP_NOMATCH] = "nomatch",
- [OP_MATCH_MAX] = "MATCH_MAX",
-
- [OP_ADD] = "add",
- [OP_ASSIGN] = "assign",
- [OP_ASSIGN_FINAL] = "assign-final",
-};
-
enum string_glob_type {
GL_UNSET,
GL_PLAIN, /* no special chars */
GL_FORMAT,
};
-#ifdef DEBUG
-static const char *string_glob_str[] = {
- [GL_UNSET] = "UNSET",
- [GL_PLAIN] = "plain",
- [GL_GLOB] = "glob",
- [GL_SPLIT] = "split",
- [GL_SPLIT_GLOB] = "split-glob",
- [GL_SOMETHING] = "split-glob",
- [GL_FORMAT] = "format",
-};
-#endif
-
/* tokens of a rule are sorted/handled in this order */
enum token_type {
TK_UNSET,
TK_END,
};
+/* we try to pack stuff in a way that we take only 16 bytes per token */
+struct token {
+ union {
+ unsigned short type; /* same as in rule and key */
+ struct {
+ unsigned short type;
+ unsigned short flags;
+ unsigned int next_rule;
+ unsigned int label_off;
+ unsigned short filename_off;
+ unsigned short filename_line;
+ } rule;
+ struct {
+ unsigned short type;
+ unsigned short flags;
+ unsigned short op;
+ unsigned short glob;
+ unsigned int value_off;
+ union {
+ unsigned int attr_off;
+ int ignore_error;
+ int i;
+ unsigned int rule_goto;
+ mode_t mode;
+ uid_t uid;
+ gid_t gid;
+ int num_fake_part;
+ int devlink_prio;
+ int event_timeout;
+ };
+ } key;
+ };
+};
+
+#define MAX_TK 64
+struct rule_tmp {
+ struct udev_rules *rules;
+ struct token rule;
+ struct token token[MAX_TK];
+ unsigned int token_cur;
+};
+
+#ifdef DEBUG
+static const char *operation_str[] = {
+ [OP_UNSET] = "UNSET",
+ [OP_MATCH] = "match",
+ [OP_NOMATCH] = "nomatch",
+ [OP_MATCH_MAX] = "MATCH_MAX",
+
+ [OP_ADD] = "add",
+ [OP_ASSIGN] = "assign",
+ [OP_ASSIGN_FINAL] = "assign-final",
+};
+
+static const char *string_glob_str[] = {
+ [GL_UNSET] = "UNSET",
+ [GL_PLAIN] = "plain",
+ [GL_GLOB] = "glob",
+ [GL_SPLIT] = "split",
+ [GL_SPLIT_GLOB] = "split-glob",
+ [GL_SOMETHING] = "split-glob",
+ [GL_FORMAT] = "format",
+};
+
static const char *token_str[] = {
[TK_UNSET] = "UNSET",
[TK_RULE] = "RULE",
[TK_END] = "END",
};
-/* we try to pack stuff in a way that we take only 16 bytes per token */
-struct token {
- union {
- unsigned short type; /* same as in rule and key */
- struct {
- unsigned short type;
- unsigned short flags;
- unsigned int next_rule;
- unsigned int label_off;
- unsigned short filename_off;
- unsigned short filename_line;
- } rule;
- struct {
- unsigned short type;
- unsigned short flags;
- unsigned short op;
- unsigned short glob;
- unsigned int value_off;
- union {
- unsigned int attr_off;
- int ignore_error;
- int i;
- unsigned int rule_goto;
- mode_t mode;
- uid_t uid;
- gid_t gid;
- int num_fake_part;
- int devlink_prio;
- int event_timeout;
- };
- } key;
- };
-};
-
-#define MAX_TK 64
-struct rule_tmp {
- struct udev_rules *rules;
- struct token rule;
- struct token token[MAX_TK];
- unsigned int token_cur;
-};
-
-struct uid_gid {
- unsigned int name_off;
- union {
- uid_t uid;
- gid_t gid;
- };
-};
+static void dump_token(struct udev_rules *rules, struct token *token)
+{
+ enum token_type type = token->type;
+ enum operation_type op = token->key.op;
+ enum string_glob_type glob = token->key.glob;
+ const char *value = &rules->buf[token->key.value_off];
+ const char *attr = &rules->buf[token->key.attr_off];
-struct udev_rules {
- struct udev *udev;
- int resolve_names;
+ switch (type) {
+ case TK_RULE:
+ {
+ const char *tks_ptr = (char *)rules->tokens;
+ const char *tk_ptr = (char *)token;
+ unsigned int off = tk_ptr - tks_ptr;
- /* every key in the rules file becomes a token */
- struct token *tokens;
- unsigned int token_cur;
- unsigned int token_max;
+ dbg(rules->udev, "* RULE %s:%u, off: %u(%u), next: %u, label: '%s', flags: 0x%02x\n",
+ &rules->buf[token->rule.filename_off], token->rule.filename_line,
+ off / (unsigned int) sizeof(struct token), off,
+ token->rule.next_rule,
+ &rules->buf[token->rule.label_off],
+ token->rule.flags);
+ break;
+ }
+ case TK_M_ACTION:
+ case TK_M_DEVPATH:
+ case TK_M_KERNEL:
+ case TK_M_SUBSYSTEM:
+ case TK_M_DRIVER:
+ case TK_M_WAITFOR:
+ case TK_M_DEVLINK:
+ case TK_M_NAME:
+ case TK_M_KERNELS:
+ case TK_M_SUBSYSTEMS:
+ case TK_M_DRIVERS:
+ case TK_M_PROGRAM:
+ case TK_M_IMPORT_FILE:
+ case TK_M_IMPORT_PROG:
+ case TK_M_IMPORT_PARENT:
+ case TK_M_RESULT:
+ case TK_A_NAME:
+ case TK_A_DEVLINK:
+ case TK_A_OWNER:
+ case TK_A_GROUP:
+ case TK_A_MODE:
+ case TK_A_RUN:
+ dbg(rules->udev, "%s %s '%s'(%s)\n",
+ token_str[type], operation_str[op], value, string_glob_str[glob]);
+ break;
+ case TK_M_ATTR:
+ case TK_M_ATTRS:
+ case TK_M_ENV:
+ case TK_A_ATTR:
+ case TK_A_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_A_IGNORE_DEVICE:
+ case TK_A_STRING_ESCAPE_NONE:
+ case TK_A_STRING_ESCAPE_REPLACE:
+ case TK_A_LAST_RULE:
+ case TK_A_IGNORE_REMOVE:
+ dbg(rules->udev, "%s\n", token_str[type]);
+ break;
+ case TK_M_TEST:
+ dbg(rules->udev, "%s %s '%s'(%s) %#o\n",
+ token_str[type], operation_str[op], value, string_glob_str[glob], token->key.mode);
+ break;
+ case TK_A_NUM_FAKE_PART:
+ dbg(rules->udev, "%s %u\n", token_str[type], token->key.num_fake_part);
+ break;
+ case TK_A_DEVLINK_PRIO:
+ dbg(rules->udev, "%s %s %u\n", token_str[type], operation_str[op], 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);
+ break;
+ case TK_A_GROUP_ID:
+ dbg(rules->udev, "%s %s %u\n", token_str[type], operation_str[op], token->key.gid);
+ break;
+ 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);
+ break;
+ case TK_A_GOTO:
+ dbg(rules->udev, "%s '%s' %u\n", token_str[type], value, token->key.rule_goto);
+ break;
+ case TK_END:
+ dbg(rules->udev, "* %s\n", token_str[type]);
+ break;
+ case TK_M_PARENTS_MIN:
+ case TK_M_PARENTS_MAX:
+ case TK_M_MAX:
+ case TK_UNSET:
+ dbg(rules->udev, "unknown type %u\n", type);
+ break;
+ }
+}
- /* all key strings are copied to a single string buffer */
- char *buf;
- size_t buf_cur;
- size_t buf_max;
- unsigned int buf_count;
+static void dump_rules(struct udev_rules *rules)
+{
+ unsigned int i;
- /* during rule parsing, we cache uid/gid lookup results */
- struct uid_gid *uids;
- unsigned int uids_cur;
- unsigned int uids_max;
- struct uid_gid *gids;
- unsigned int gids_cur;
- unsigned int gids_max;
-};
+ dbg(rules->udev, "dumping %u (%zu bytes) tokens, %u (%zu bytes) strings\n",
+ rules->token_cur,
+ rules->token_cur * sizeof(struct token),
+ rules->buf_count,
+ rules->buf_cur);
+ for(i = 0; i < rules->token_cur; i++)
+ dump_token(rules, &rules->tokens[i]);
+}
+#else
+static const char **operation_str;
+static const char **token_str;
+static inline void dump_token(struct udev_rules *rules, struct token *token) {}
+static inline void dump_rules(struct udev_rules *rules) {}
+#endif /* DEBUG */
/* we could lookup and return existing strings, or tails of strings */
static int add_string(struct udev_rules *rules, const char *str)
return 0;
}
-#ifdef DEBUG
-static void dump_token(struct udev_rules *rules, struct token *token)
-{
- enum token_type type = token->type;
- enum operation_type op = token->key.op;
- enum string_glob_type glob = token->key.glob;
- const char *value = &rules->buf[token->key.value_off];
- const char *attr = &rules->buf[token->key.attr_off];
-
- switch (type) {
- case TK_RULE:
- {
- const char *tks_ptr = (char *)rules->tokens;
- const char *tk_ptr = (char *)token;
- unsigned int off = tk_ptr - tks_ptr;
-
- dbg(rules->udev, "* RULE %s:%u, off: %u(%u), next: %u, label: '%s', flags: 0x%02x\n",
- &rules->buf[token->rule.filename_off], token->rule.filename_line,
- off / (unsigned int) sizeof(struct token), off,
- token->rule.next_rule,
- &rules->buf[token->rule.label_off],
- token->rule.flags);
- break;
- }
- case TK_M_ACTION:
- case TK_M_DEVPATH:
- case TK_M_KERNEL:
- case TK_M_SUBSYSTEM:
- case TK_M_DRIVER:
- case TK_M_WAITFOR:
- case TK_M_DEVLINK:
- case TK_M_NAME:
- case TK_M_KERNELS:
- case TK_M_SUBSYSTEMS:
- case TK_M_DRIVERS:
- case TK_M_PROGRAM:
- case TK_M_IMPORT_FILE:
- case TK_M_IMPORT_PROG:
- case TK_M_IMPORT_PARENT:
- case TK_M_RESULT:
- case TK_A_NAME:
- case TK_A_DEVLINK:
- case TK_A_OWNER:
- case TK_A_GROUP:
- case TK_A_MODE:
- case TK_A_RUN:
- dbg(rules->udev, "%s %s '%s'(%s)\n",
- token_str[type], operation_str[op], value, string_glob_str[glob]);
- break;
- case TK_M_ATTR:
- case TK_M_ATTRS:
- case TK_M_ENV:
- case TK_A_ATTR:
- case TK_A_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_A_IGNORE_DEVICE:
- case TK_A_STRING_ESCAPE_NONE:
- case TK_A_STRING_ESCAPE_REPLACE:
- case TK_A_LAST_RULE:
- case TK_A_IGNORE_REMOVE:
- dbg(rules->udev, "%s\n", token_str[type]);
- break;
- case TK_M_TEST:
- dbg(rules->udev, "%s %s '%s'(%s) %#o\n",
- token_str[type], operation_str[op], value, string_glob_str[glob], token->key.mode);
- break;
- case TK_A_NUM_FAKE_PART:
- dbg(rules->udev, "%s %u\n", token_str[type], token->key.num_fake_part);
- break;
- case TK_A_DEVLINK_PRIO:
- dbg(rules->udev, "%s %s %u\n", token_str[type], operation_str[op], 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);
- break;
- case TK_A_GROUP_ID:
- dbg(rules->udev, "%s %s %u\n", token_str[type], operation_str[op], token->key.gid);
- break;
- 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);
- break;
- case TK_A_GOTO:
- dbg(rules->udev, "%s '%s' %u\n", token_str[type], value, token->key.rule_goto);
- break;
- case TK_END:
- dbg(rules->udev, "* %s\n", token_str[type]);
- break;
- case TK_M_PARENTS_MIN:
- case TK_M_PARENTS_MAX:
- case TK_M_MAX:
- case TK_UNSET:
- dbg(rules->udev, "unknown type %u\n", type);
- break;
- }
-}
-
-static void dump_rules(struct udev_rules *rules)
-{
- unsigned int i;
-
- dbg(rules->udev, "dumping %u (%zu bytes) tokens, %u (%zu bytes) strings\n",
- rules->token_cur,
- rules->token_cur * sizeof(struct token),
- rules->buf_count,
- rules->buf_cur);
- for(i = 0; i < rules->token_cur; i++)
- 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) {}
-#endif /* DEBUG */
-
static int sort_token(struct udev_rules *rules, struct rule_tmp *rule_tmp)
{
unsigned int i;
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