TOMOYO_ID_GROUP,
TOMOYO_ID_PATH_GROUP,
TOMOYO_ID_NUMBER_GROUP,
- TOMOYO_ID_DOMAIN_INITIALIZER,
- TOMOYO_ID_DOMAIN_KEEPER,
+ TOMOYO_ID_TRANSITION_CONTROL,
TOMOYO_ID_AGGREGATOR,
TOMOYO_ID_GLOBALLY_READABLE,
TOMOYO_ID_PATTERN,
#define TOMOYO_VALUE_TYPE_OCTAL 2
#define TOMOYO_VALUE_TYPE_HEXADECIMAL 3
+enum tomoyo_transition_type {
+ /* Do not change this order, */
+ TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE,
+ TOMOYO_TRANSITION_CONTROL_INITIALIZE,
+ TOMOYO_TRANSITION_CONTROL_NO_KEEP,
+ TOMOYO_TRANSITION_CONTROL_KEEP,
+ TOMOYO_MAX_TRANSITION_TYPE
+};
+
/* Index numbers for Access Controls. */
enum tomoyo_acl_entry_type_index {
TOMOYO_TYPE_PATH_ACL,
struct tomoyo_number_union flags;
};
+#define TOMOYO_MAX_IO_READ_QUEUE 32
+
/*
- * tomoyo_io_buffer is a structure which is used for reading and modifying
- * configuration via /sys/kernel/security/tomoyo/ interface.
- * It has many fields. ->read_var1 , ->read_var2 , ->write_var1 are used as
- * cursors.
- *
- * Since the content of /sys/kernel/security/tomoyo/domain_policy is a list of
- * "struct tomoyo_domain_info" entries and each "struct tomoyo_domain_info"
- * entry has a list of "struct tomoyo_acl_info", we need two cursors when
- * reading (one is for traversing tomoyo_domain_list and the other is for
- * traversing "struct tomoyo_acl_info"->acl_info_list ).
- *
- * If a line written to /sys/kernel/security/tomoyo/domain_policy starts with
- * "select ", TOMOYO seeks the cursor ->read_var1 and ->write_var1 to the
- * domain with the domainname specified by the rest of that line (NULL is set
- * if seek failed).
- * If a line written to /sys/kernel/security/tomoyo/domain_policy starts with
- * "delete ", TOMOYO deletes an entry or a domain specified by the rest of that
- * line (->write_var1 is set to NULL if a domain was deleted).
- * If a line written to /sys/kernel/security/tomoyo/domain_policy starts with
- * neither "select " nor "delete ", an entry or a domain specified by that line
- * is appended.
+ * Structure for reading/writing policy via /sys/kernel/security/tomoyo
+ * interfaces.
*/
struct tomoyo_io_buffer {
void (*read) (struct tomoyo_io_buffer *);
struct mutex io_sem;
/* Index returned by tomoyo_read_lock(). */
int reader_idx;
- /* The position currently reading from. */
- struct list_head *read_var1;
- /* Extra variables for reading. */
- struct list_head *read_var2;
+ char __user *read_user_buf;
+ int read_user_buf_avail;
+ struct {
+ struct list_head *domain;
+ struct list_head *group;
+ struct list_head *acl;
+ int avail;
+ int step;
+ int query_index;
+ u16 index;
+ u8 bit;
+ u8 w_pos;
+ bool eof;
+ bool print_this_domain_only;
+ bool print_execute_only;
+ const char *w[TOMOYO_MAX_IO_READ_QUEUE];
+ } r;
/* The position currently writing to. */
struct tomoyo_domain_info *write_var1;
- /* The step for reading. */
- int read_step;
/* Buffer for reading. */
char *read_buf;
- /* EOF flag for reading. */
- bool read_eof;
- /* Read domain ACL of specified PID? */
- bool read_single_domain;
- /* Extra variable for reading. */
- u8 read_bit;
- /* Bytes available for reading. */
- int read_avail;
/* Size of read buffer. */
int readbuf_size;
/* Buffer for writing. */
};
/*
- * tomoyo_domain_initializer_entry is a structure which is used for holding
- * "initialize_domain" and "no_initialize_domain" entries.
+ * tomoyo_transition_control is a structure which is used for holding
+ * "initialize_domain"/"no_initialize_domain"/"keep_domain"/"no_keep_domain"
+ * entries.
* It has following fields.
*
* (1) "head" is "struct tomoyo_acl_head".
- * (2) "is_not" is a bool which is true if "no_initialize_domain", false
- * otherwise.
- * (3) "is_last_name" is a bool which is true if "domainname" is "the last
- * component of a domainname", false otherwise.
- * (4) "domainname" which is "a domainname" or "the last component of a
- * domainname". This field is NULL if "from" clause is not specified.
- * (5) "program" which is a program's pathname.
- */
-struct tomoyo_domain_initializer_entry {
- struct tomoyo_acl_head head;
- bool is_not; /* True if this entry is "no_initialize_domain". */
- /* True if the domainname is tomoyo_get_last_name(). */
- bool is_last_name;
- const struct tomoyo_path_info *domainname; /* This may be NULL */
- const struct tomoyo_path_info *program;
-};
-
-/*
- * tomoyo_domain_keeper_entry is a structure which is used for holding
- * "keep_domain" and "no_keep_domain" entries.
- * It has following fields.
- *
- * (1) "head" is "struct tomoyo_acl_head".
- * (2) "is_not" is a bool which is true if "no_initialize_domain", false
- * otherwise.
+ * (2) "type" is type of this entry.
* (3) "is_last_name" is a bool which is true if "domainname" is "the last
* component of a domainname", false otherwise.
* (4) "domainname" which is "a domainname" or "the last component of a
* domainname".
* (5) "program" which is a program's pathname.
- * This field is NULL if "from" clause is not specified.
*/
-struct tomoyo_domain_keeper_entry {
+struct tomoyo_transition_control {
struct tomoyo_acl_head head;
- bool is_not; /* True if this entry is "no_keep_domain". */
+ u8 type; /* One of values in "enum tomoyo_transition_type". */
/* True if the domainname is tomoyo_get_last_name(). */
bool is_last_name;
- const struct tomoyo_path_info *domainname;
- const struct tomoyo_path_info *program; /* This may be NULL */
+ const struct tomoyo_path_info *domainname; /* Maybe NULL */
+ const struct tomoyo_path_info *program; /* Maybe NULL */
};
/*
bool tomoyo_compare_number_union(const unsigned long value,
const struct tomoyo_number_union *ptr);
int tomoyo_get_mode(const u8 profile, const u8 index);
-/* Transactional sprintf() for policy dump. */
-bool tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
+void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
__attribute__ ((format(printf, 2, 3)));
/* Check whether the domainname is correct. */
bool tomoyo_correct_domain(const unsigned char *domainname);
bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
const struct tomoyo_path_info *pattern);
-bool tomoyo_print_number_union(struct tomoyo_io_buffer *head,
- const struct tomoyo_number_union *ptr);
bool tomoyo_parse_number_union(char *data, struct tomoyo_number_union *num);
/* Tokenize a line. */
bool tomoyo_tokenize(char *buffer, char *w[], size_t size);
unsigned long flags, void *data_page);
/* Create "aggregator" entry in exception policy. */
int tomoyo_write_aggregator_policy(char *data, const bool is_delete);
-/*
- * Create "initialize_domain" and "no_initialize_domain" entry
- * in exception policy.
- */
-int tomoyo_write_domain_initializer_policy(char *data, const bool is_not,
- const bool is_delete);
-/* Create "keep_domain" and "no_keep_domain" entry in exception policy. */
-int tomoyo_write_domain_keeper_policy(char *data, const bool is_not,
- const bool is_delete);
+int tomoyo_write_transition_control(char *data, const bool is_delete,
+ const u8 type);
/*
* Create "allow_read/write", "allow_execute", "allow_read", "allow_write",
* "allow_create", "allow_unlink", "allow_mkdir", "allow_rmdir",
void tomoyo_check_acl(struct tomoyo_request_info *r,
bool (*check_entry) (const struct tomoyo_request_info *,
const struct tomoyo_acl_info *));
+const char *tomoyo_last_word(const char *name);
/********** External variable definitions. **********/
/**
* list_for_each_cookie - iterate over a list with cookie.
* @pos: the &struct list_head to use as a loop cursor.
- * @cookie: the &struct list_head to use as a cookie.
* @head: the head for your list.
- *
- * Same with list_for_each_rcu() except that this primitive uses @cookie
- * so that we can continue iteration.
- * @cookie must be NULL when iteration starts, and @cookie will become
- * NULL when iteration finishes.
*/
-#define list_for_each_cookie(pos, cookie, head) \
- for (({ if (!cookie) \
- cookie = head; }), \
- pos = rcu_dereference((cookie)->next); \
- prefetch(pos->next), pos != (head) || ((cookie) = NULL); \
- (cookie) = pos, pos = rcu_dereference(pos->next))
+#define list_for_each_cookie(pos, head) \
+ if (!pos) \
+ pos = srcu_dereference((head)->next, &tomoyo_ss); \
+ for ( ; pos != (head); pos = srcu_dereference(pos->next, &tomoyo_ss))
#endif /* !defined(_SECURITY_TOMOYO_COMMON_H) */
git://bbs.cooldavid.org / net-next-2.6.git / blobdiff