#include <linux/mount.h>
#include <linux/list.h>
#include <linux/cred.h>
+#include <linux/poll.h>
struct linux_binprm;
/********** Constants definitions. **********/
#define TOMOYO_HASH_BITS 8
#define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
-/*
- * This is the max length of a token.
- *
- * A token consists of only ASCII printable characters.
- * Non printable characters in a token is represented in \ooo style
- * octal string. Thus, \ itself is represented as \\.
- */
-#define TOMOYO_MAX_PATHNAME_LEN 4000
+#define TOMOYO_EXEC_TMPSIZE 4096
/* Profile number is an integer between 0 and 255. */
#define TOMOYO_MAX_PROFILES 256
+enum tomoyo_mode_index {
+ TOMOYO_CONFIG_DISABLED,
+ TOMOYO_CONFIG_LEARNING,
+ TOMOYO_CONFIG_PERMISSIVE,
+ TOMOYO_CONFIG_ENFORCING,
+ TOMOYO_CONFIG_USE_DEFAULT = 255
+};
+
+enum tomoyo_policy_id {
+ TOMOYO_ID_GROUP,
+ TOMOYO_ID_PATH_GROUP,
+ TOMOYO_ID_NUMBER_GROUP,
+ TOMOYO_ID_TRANSITION_CONTROL,
+ TOMOYO_ID_AGGREGATOR,
+ TOMOYO_ID_GLOBALLY_READABLE,
+ TOMOYO_ID_PATTERN,
+ TOMOYO_ID_NO_REWRITE,
+ TOMOYO_ID_MANAGER,
+ TOMOYO_ID_NAME,
+ TOMOYO_ID_ACL,
+ TOMOYO_ID_DOMAIN,
+ TOMOYO_MAX_POLICY
+};
+
+enum tomoyo_group_id {
+ TOMOYO_PATH_GROUP,
+ TOMOYO_NUMBER_GROUP,
+ TOMOYO_MAX_GROUP
+};
+
/* Keywords for ACLs. */
-#define TOMOYO_KEYWORD_ALIAS "alias "
+#define TOMOYO_KEYWORD_AGGREGATOR "aggregator "
+#define TOMOYO_KEYWORD_ALLOW_MOUNT "allow_mount "
#define TOMOYO_KEYWORD_ALLOW_READ "allow_read "
#define TOMOYO_KEYWORD_DELETE "delete "
#define TOMOYO_KEYWORD_DENY_REWRITE "deny_rewrite "
#define TOMOYO_KEYWORD_NO_INITIALIZE_DOMAIN "no_initialize_domain "
#define TOMOYO_KEYWORD_NO_KEEP_DOMAIN "no_keep_domain "
#define TOMOYO_KEYWORD_PATH_GROUP "path_group "
+#define TOMOYO_KEYWORD_NUMBER_GROUP "number_group "
#define TOMOYO_KEYWORD_SELECT "select "
#define TOMOYO_KEYWORD_USE_PROFILE "use_profile "
#define TOMOYO_KEYWORD_IGNORE_GLOBAL_ALLOW_READ "ignore_global_allow_read"
+#define TOMOYO_KEYWORD_QUOTA_EXCEEDED "quota_exceeded"
+#define TOMOYO_KEYWORD_TRANSITION_FAILED "transition_failed"
/* A domain definition starts with <kernel>. */
#define TOMOYO_ROOT_NAME "<kernel>"
#define TOMOYO_ROOT_NAME_LEN (sizeof(TOMOYO_ROOT_NAME) - 1)
-/* Index numbers for Access Controls. */
-enum tomoyo_mac_index {
- TOMOYO_MAC_FOR_FILE, /* domain_policy.conf */
- TOMOYO_MAX_ACCEPT_ENTRY,
- TOMOYO_VERBOSE,
- TOMOYO_MAX_CONTROL_INDEX
+/* Value type definition. */
+#define TOMOYO_VALUE_TYPE_INVALID 0
+#define TOMOYO_VALUE_TYPE_DECIMAL 1
+#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,
TOMOYO_TYPE_PATH2_ACL,
+ TOMOYO_TYPE_PATH_NUMBER_ACL,
+ TOMOYO_TYPE_MKDEV_ACL,
+ TOMOYO_TYPE_MOUNT_ACL,
};
/* Index numbers for File Controls. */
/*
- * TYPE_READ_WRITE_ACL is special. TYPE_READ_WRITE_ACL is automatically set
- * if both TYPE_READ_ACL and TYPE_WRITE_ACL are set. Both TYPE_READ_ACL and
- * TYPE_WRITE_ACL are automatically set if TYPE_READ_WRITE_ACL is set.
- * TYPE_READ_WRITE_ACL is automatically cleared if either TYPE_READ_ACL or
- * TYPE_WRITE_ACL is cleared. Both TYPE_READ_ACL and TYPE_WRITE_ACL are
- * automatically cleared if TYPE_READ_WRITE_ACL is cleared.
+ * TOMOYO_TYPE_READ_WRITE is special. TOMOYO_TYPE_READ_WRITE is automatically
+ * set if both TOMOYO_TYPE_READ and TOMOYO_TYPE_WRITE are set.
+ * Both TOMOYO_TYPE_READ and TOMOYO_TYPE_WRITE are automatically set if
+ * TOMOYO_TYPE_READ_WRITE is set.
+ * TOMOYO_TYPE_READ_WRITE is automatically cleared if either TOMOYO_TYPE_READ
+ * or TOMOYO_TYPE_WRITE is cleared.
+ * Both TOMOYO_TYPE_READ and TOMOYO_TYPE_WRITE are automatically cleared if
+ * TOMOYO_TYPE_READ_WRITE is cleared.
*/
enum tomoyo_path_acl_index {
TOMOYO_TYPE_EXECUTE,
TOMOYO_TYPE_READ,
TOMOYO_TYPE_WRITE,
- TOMOYO_TYPE_CREATE,
TOMOYO_TYPE_UNLINK,
- TOMOYO_TYPE_MKDIR,
TOMOYO_TYPE_RMDIR,
- TOMOYO_TYPE_MKFIFO,
- TOMOYO_TYPE_MKSOCK,
- TOMOYO_TYPE_MKBLOCK,
- TOMOYO_TYPE_MKCHAR,
TOMOYO_TYPE_TRUNCATE,
TOMOYO_TYPE_SYMLINK,
TOMOYO_TYPE_REWRITE,
- TOMOYO_TYPE_IOCTL,
- TOMOYO_TYPE_CHMOD,
- TOMOYO_TYPE_CHOWN,
- TOMOYO_TYPE_CHGRP,
TOMOYO_TYPE_CHROOT,
- TOMOYO_TYPE_MOUNT,
TOMOYO_TYPE_UMOUNT,
TOMOYO_MAX_PATH_OPERATION
};
+#define TOMOYO_RW_MASK ((1 << TOMOYO_TYPE_READ) | (1 << TOMOYO_TYPE_WRITE))
+
+enum tomoyo_mkdev_acl_index {
+ TOMOYO_TYPE_MKBLOCK,
+ TOMOYO_TYPE_MKCHAR,
+ TOMOYO_MAX_MKDEV_OPERATION
+};
+
enum tomoyo_path2_acl_index {
TOMOYO_TYPE_LINK,
TOMOYO_TYPE_RENAME,
TOMOYO_MAX_PATH2_OPERATION
};
+enum tomoyo_path_number_acl_index {
+ TOMOYO_TYPE_CREATE,
+ TOMOYO_TYPE_MKDIR,
+ TOMOYO_TYPE_MKFIFO,
+ TOMOYO_TYPE_MKSOCK,
+ TOMOYO_TYPE_IOCTL,
+ TOMOYO_TYPE_CHMOD,
+ TOMOYO_TYPE_CHOWN,
+ TOMOYO_TYPE_CHGRP,
+ TOMOYO_MAX_PATH_NUMBER_OPERATION
+};
+
enum tomoyo_securityfs_interface_index {
TOMOYO_DOMAINPOLICY,
TOMOYO_EXCEPTIONPOLICY,
TOMOYO_SELFDOMAIN,
TOMOYO_VERSION,
TOMOYO_PROFILE,
+ TOMOYO_QUERY,
TOMOYO_MANAGER
};
+enum tomoyo_mac_index {
+ TOMOYO_MAC_FILE_EXECUTE,
+ TOMOYO_MAC_FILE_OPEN,
+ TOMOYO_MAC_FILE_CREATE,
+ TOMOYO_MAC_FILE_UNLINK,
+ TOMOYO_MAC_FILE_MKDIR,
+ TOMOYO_MAC_FILE_RMDIR,
+ TOMOYO_MAC_FILE_MKFIFO,
+ TOMOYO_MAC_FILE_MKSOCK,
+ TOMOYO_MAC_FILE_TRUNCATE,
+ TOMOYO_MAC_FILE_SYMLINK,
+ TOMOYO_MAC_FILE_REWRITE,
+ TOMOYO_MAC_FILE_MKBLOCK,
+ TOMOYO_MAC_FILE_MKCHAR,
+ TOMOYO_MAC_FILE_LINK,
+ TOMOYO_MAC_FILE_RENAME,
+ TOMOYO_MAC_FILE_CHMOD,
+ TOMOYO_MAC_FILE_CHOWN,
+ TOMOYO_MAC_FILE_CHGRP,
+ TOMOYO_MAC_FILE_IOCTL,
+ TOMOYO_MAC_FILE_CHROOT,
+ TOMOYO_MAC_FILE_MOUNT,
+ TOMOYO_MAC_FILE_UMOUNT,
+ TOMOYO_MAC_FILE_PIVOT_ROOT,
+ TOMOYO_MAX_MAC_INDEX
+};
+
+enum tomoyo_mac_category_index {
+ TOMOYO_MAC_CATEGORY_FILE,
+ TOMOYO_MAX_MAC_CATEGORY_INDEX
+};
+
+#define TOMOYO_RETRY_REQUEST 1 /* Retry this request. */
+
/********** Structure definitions. **********/
/*
- * tomoyo_page_buffer is a structure which is used for holding a pathname
- * obtained from "struct dentry" and "struct vfsmount" pair.
- * As of now, it is 4096 bytes. If users complain that 4096 bytes is too small
- * (because TOMOYO escapes non ASCII printable characters using \ooo format),
- * we will make the buffer larger.
+ * tomoyo_acl_head is a structure which is used for holding elements not in
+ * domain policy.
+ * It has following fields.
+ *
+ * (1) "list" which is linked to tomoyo_policy_list[] .
+ * (2) "is_deleted" is a bool which is true if marked as deleted, false
+ * otherwise.
*/
-struct tomoyo_page_buffer {
- char buffer[4096];
+struct tomoyo_acl_head {
+ struct list_head list;
+ bool is_deleted;
+} __packed;
+
+/*
+ * tomoyo_request_info is a structure which is used for holding
+ *
+ * (1) Domain information of current process.
+ * (2) How many retries are made for this request.
+ * (3) Profile number used for this request.
+ * (4) Access control mode of the profile.
+ */
+struct tomoyo_request_info {
+ struct tomoyo_domain_info *domain;
+ /* For holding parameters. */
+ union {
+ struct {
+ const struct tomoyo_path_info *filename;
+ u8 operation;
+ } path;
+ struct {
+ const struct tomoyo_path_info *filename1;
+ const struct tomoyo_path_info *filename2;
+ u8 operation;
+ } path2;
+ struct {
+ const struct tomoyo_path_info *filename;
+ unsigned int mode;
+ unsigned int major;
+ unsigned int minor;
+ u8 operation;
+ } mkdev;
+ struct {
+ const struct tomoyo_path_info *filename;
+ unsigned long number;
+ u8 operation;
+ } path_number;
+ struct {
+ const struct tomoyo_path_info *type;
+ const struct tomoyo_path_info *dir;
+ const struct tomoyo_path_info *dev;
+ unsigned long flags;
+ int need_dev;
+ } mount;
+ } param;
+ u8 param_type;
+ bool granted;
+ u8 retry;
+ u8 profile;
+ u8 mode; /* One of tomoyo_mode_index . */
+ u8 type;
};
/*
struct tomoyo_path_info entry;
};
-/*
- * tomoyo_path_info_with_data is a structure which is used for holding a
- * pathname obtained from "struct dentry" and "struct vfsmount" pair.
- *
- * "struct tomoyo_path_info_with_data" consists of "struct tomoyo_path_info"
- * and buffer for the pathname, while "struct tomoyo_page_buffer" consists of
- * buffer for the pathname only.
- *
- * "struct tomoyo_path_info_with_data" is intended to allow TOMOYO to release
- * both "struct tomoyo_path_info" and buffer for the pathname by single kfree()
- * so that we don't need to return two pointers to the caller. If the caller
- * puts "struct tomoyo_path_info" on stack memory, we will be able to remove
- * "struct tomoyo_path_info_with_data".
- */
-struct tomoyo_path_info_with_data {
- /* Keep "head" first, for this pointer is passed to kfree(). */
- struct tomoyo_path_info head;
- char barrier1[16]; /* Safeguard for overrun. */
- char body[TOMOYO_MAX_PATHNAME_LEN];
- char barrier2[16]; /* Safeguard for overrun. */
-};
-
struct tomoyo_name_union {
const struct tomoyo_path_info *filename;
- struct tomoyo_path_group *group;
+ struct tomoyo_group *group;
u8 is_group;
};
-/* Structure for "path_group" directive. */
-struct tomoyo_path_group {
+struct tomoyo_number_union {
+ unsigned long values[2];
+ struct tomoyo_group *group;
+ u8 min_type;
+ u8 max_type;
+ u8 is_group;
+};
+
+/* Structure for "path_group"/"number_group" directive. */
+struct tomoyo_group {
struct list_head list;
const struct tomoyo_path_info *group_name;
struct list_head member_list;
};
/* Structure for "path_group" directive. */
-struct tomoyo_path_group_member {
- struct list_head list;
- bool is_deleted;
+struct tomoyo_path_group {
+ struct tomoyo_acl_head head;
const struct tomoyo_path_info *member_name;
};
+/* Structure for "number_group" directive. */
+struct tomoyo_number_group {
+ struct tomoyo_acl_head head;
+ struct tomoyo_number_union number;
+};
+
/*
* tomoyo_acl_info is a structure which is used for holding
*
* (1) "list" which is linked to the ->acl_info_list of
* "struct tomoyo_domain_info"
- * (2) "type" which tells type of the entry (either
- * "struct tomoyo_path_acl" or "struct tomoyo_path2_acl").
+ * (2) "is_deleted" is a bool which is true if this domain is marked as
+ * "deleted", false otherwise.
+ * (3) "type" which tells type of the entry.
*
* Packing "struct tomoyo_acl_info" allows
- * "struct tomoyo_path_acl" to embed "u8" + "u16" and
- * "struct tomoyo_path2_acl" to embed "u8"
- * without enlarging their structure size.
+ * "struct tomoyo_path_acl" to embed "u16" and "struct tomoyo_path2_acl"
+ * "struct tomoyo_path_number_acl" "struct tomoyo_mkdev_acl" to embed
+ * "u8" without enlarging their structure size.
*/
struct tomoyo_acl_info {
struct list_head list;
- u8 type;
+ bool is_deleted;
+ u8 type; /* = one of values in "enum tomoyo_acl_entry_type_index". */
} __packed;
/*
* (3) "name" is the pathname.
*
* Directives held by this structure are "allow_read/write", "allow_execute",
- * "allow_read", "allow_write", "allow_create", "allow_unlink", "allow_mkdir",
- * "allow_rmdir", "allow_mkfifo", "allow_mksock", "allow_mkblock",
- * "allow_mkchar", "allow_truncate", "allow_symlink", "allow_rewrite",
- * "allow_chmod", "allow_chown", "allow_chgrp", "allow_chroot", "allow_mount"
- * and "allow_unmount".
+ * "allow_read", "allow_write", "allow_unlink", "allow_rmdir",
+ * "allow_truncate", "allow_symlink", "allow_rewrite", "allow_chroot" and
+ * "allow_unmount".
*/
struct tomoyo_path_acl {
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_ACL */
- u8 perm_high;
u16 perm;
struct tomoyo_name_union name;
};
+/*
+ * tomoyo_path_number_acl is a structure which is used for holding an
+ * entry with one pathname and one number operation.
+ * It has following fields.
+ *
+ * (1) "head" which is a "struct tomoyo_acl_info".
+ * (2) "perm" which is a bitmask of permitted operations.
+ * (3) "name" is the pathname.
+ * (4) "number" is the numeric value.
+ *
+ * Directives held by this structure are "allow_create", "allow_mkdir",
+ * "allow_ioctl", "allow_mkfifo", "allow_mksock", "allow_chmod", "allow_chown"
+ * and "allow_chgrp".
+ *
+ */
+struct tomoyo_path_number_acl {
+ struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_NUMBER_ACL */
+ u8 perm;
+ struct tomoyo_name_union name;
+ struct tomoyo_number_union number;
+};
+
+/*
+ * tomoyo_mkdev_acl is a structure which is used for holding an
+ * entry with one pathname and three numbers operation.
+ * It has following fields.
+ *
+ * (1) "head" which is a "struct tomoyo_acl_info".
+ * (2) "perm" which is a bitmask of permitted operations.
+ * (3) "mode" is the create mode.
+ * (4) "major" is the major number of device node.
+ * (5) "minor" is the minor number of device node.
+ *
+ * Directives held by this structure are "allow_mkchar", "allow_mkblock".
+ *
+ */
+struct tomoyo_mkdev_acl {
+ struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */
+ u8 perm;
+ struct tomoyo_name_union name;
+ struct tomoyo_number_union mode;
+ struct tomoyo_number_union major;
+ struct tomoyo_number_union minor;
+};
+
/*
* tomoyo_path2_acl is a structure which is used for holding an
* entry with two pathnames operation (i.e. link(), rename() and pivot_root()).
struct tomoyo_name_union name2;
};
+/*
+ * tomoyo_mount_acl is a structure which is used for holding an
+ * entry for mount operation.
+ * It has following fields.
+ *
+ * (1) "head" which is a "struct tomoyo_acl_info".
+ * (2) "dev_name" is the device name.
+ * (3) "dir_name" is the mount point.
+ * (4) "fs_type" is the filesystem type.
+ * (5) "flags" is the mount flags.
+ *
+ * Directive held by this structure is "allow_mount".
+ */
+struct tomoyo_mount_acl {
+ struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MOUNT_ACL */
+ struct tomoyo_name_union dev_name;
+ struct tomoyo_name_union dir_name;
+ struct tomoyo_name_union fs_type;
+ struct tomoyo_number_union flags;
+};
+
/*
* tomoyo_io_buffer is a structure which is used for reading and modifying
* configuration via /sys/kernel/security/tomoyo/ interface.
* is appended.
*/
struct tomoyo_io_buffer {
- int (*read) (struct tomoyo_io_buffer *);
+ void (*read) (struct tomoyo_io_buffer *);
int (*write) (struct tomoyo_io_buffer *);
+ int (*poll) (struct file *file, poll_table *wait);
/* Exclusive lock for this structure. */
struct mutex io_sem;
/* Index returned by tomoyo_read_lock(). */
int write_avail;
/* Size of write buffer. */
int writebuf_size;
+ /* Type of this interface. */
+ u8 type;
};
/*
* "allow_read" entries.
* It has following fields.
*
- * (1) "list" which is linked to tomoyo_globally_readable_list .
+ * (1) "head" is "struct tomoyo_acl_head".
* (2) "filename" is a pathname which is allowed to open(O_RDONLY).
- * (3) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
*/
struct tomoyo_globally_readable_file_entry {
- struct list_head list;
+ struct tomoyo_acl_head head;
const struct tomoyo_path_info *filename;
- bool is_deleted;
};
/*
* tomoyo_pattern_entry is a structure which is used for holding
- * "tomoyo_pattern_list" entries.
+ * "file_pattern" entries.
* It has following fields.
*
- * (1) "list" which is linked to tomoyo_pattern_list .
+ * (1) "head" is "struct tomoyo_acl_head".
* (2) "pattern" is a pathname pattern which is used for converting pathnames
* to pathname patterns during learning mode.
- * (3) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
*/
struct tomoyo_pattern_entry {
- struct list_head list;
+ struct tomoyo_acl_head head;
const struct tomoyo_path_info *pattern;
- bool is_deleted;
};
/*
* "deny_rewrite" entries.
* It has following fields.
*
- * (1) "list" which is linked to tomoyo_no_rewrite_list .
+ * (1) "head" is "struct tomoyo_acl_head".
* (2) "pattern" is a pathname which is by default not permitted to modify
* already existing content.
- * (3) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
*/
struct tomoyo_no_rewrite_entry {
- struct list_head list;
+ struct tomoyo_acl_head head;
const struct tomoyo_path_info *pattern;
- bool is_deleted;
};
/*
- * 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) "list" which is linked to tomoyo_domain_initializer_list .
- * (2) "domainname" which is "a domainname" or "the last component of a
- * domainname". This field is NULL if "from" clause is not specified.
- * (3) "program" which is a program's pathname.
- * (4) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
- * (5) "is_not" is a bool which is true if "no_initialize_domain", false
- * otherwise.
- * (6) "is_last_name" is a bool which is true if "domainname" is "the last
+ * (1) "head" is "struct tomoyo_acl_head".
+ * (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.
- */
-struct tomoyo_domain_initializer_entry {
- struct list_head list;
- const struct tomoyo_path_info *domainname; /* This may be NULL */
- const struct tomoyo_path_info *program;
- bool is_deleted;
- bool is_not; /* True if this entry is "no_initialize_domain". */
- /* True if the domainname is tomoyo_get_last_name(). */
- bool is_last_name;
-};
-
-/*
- * tomoyo_domain_keeper_entry is a structure which is used for holding
- * "keep_domain" and "no_keep_domain" entries.
- * It has following fields.
- *
- * (1) "list" which is linked to tomoyo_domain_keeper_list .
- * (2) "domainname" which is "a domainname" or "the last component of a
+ * (4) "domainname" which is "a domainname" or "the last component of a
* domainname".
- * (3) "program" which is a program's pathname.
- * This field is NULL if "from" clause is not specified.
- * (4) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
- * (5) "is_not" is a bool which is true if "no_initialize_domain", false
- * otherwise.
- * (6) "is_last_name" is a bool which is true if "domainname" is "the last
- * component of a domainname", false otherwise.
+ * (5) "program" which is a program's pathname.
*/
-struct tomoyo_domain_keeper_entry {
- struct list_head list;
- const struct tomoyo_path_info *domainname;
- const struct tomoyo_path_info *program; /* This may be NULL */
- bool is_deleted;
- bool is_not; /* True if this entry is "no_keep_domain". */
+struct tomoyo_transition_control {
+ struct tomoyo_acl_head head;
+ 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; /* Maybe NULL */
+ const struct tomoyo_path_info *program; /* Maybe NULL */
};
/*
- * tomoyo_alias_entry is a structure which is used for holding "alias" entries.
+ * tomoyo_aggregator_entry is a structure which is used for holding
+ * "aggregator" entries.
* It has following fields.
*
- * (1) "list" which is linked to tomoyo_alias_list .
- * (2) "original_name" which is a dereferenced pathname.
- * (3) "aliased_name" which is a symlink's pathname.
- * (4) "is_deleted" is a bool which is true if marked as deleted, false
- * otherwise.
+ * (1) "head" is "struct tomoyo_acl_head".
+ * (2) "original_name" which is originally requested name.
+ * (3) "aggregated_name" which is name to rewrite.
*/
-struct tomoyo_alias_entry {
- struct list_head list;
+struct tomoyo_aggregator_entry {
+ struct tomoyo_acl_head head;
const struct tomoyo_path_info *original_name;
- const struct tomoyo_path_info *aliased_name;
- bool is_deleted;
+ const struct tomoyo_path_info *aggregated_name;
};
/*
* /sys/kernel/security/tomoyo/ interface.
* It has following fields.
*
- * (1) "list" which is linked to tomoyo_policy_manager_list .
- * (2) "manager" is a domainname or a program's pathname.
- * (3) "is_domain" is a bool which is true if "manager" is a domainname, false
- * otherwise.
- * (4) "is_deleted" is a bool which is true if marked as deleted, false
+ * (1) "head" is "struct tomoyo_acl_head".
+ * (2) "is_domain" is a bool which is true if "manager" is a domainname, false
* otherwise.
+ * (3) "manager" is a domainname or a program's pathname.
*/
struct tomoyo_policy_manager_entry {
- struct list_head list;
+ struct tomoyo_acl_head head;
+ bool is_domain; /* True if manager is a domainname. */
/* A path to program or a domainname. */
const struct tomoyo_path_info *manager;
- bool is_domain; /* True if manager is a domainname. */
- bool is_deleted; /* True if this entry is deleted. */
+};
+
+struct tomoyo_preference {
+ unsigned int learning_max_entry;
+ bool enforcing_verbose;
+ bool learning_verbose;
+ bool permissive_verbose;
+};
+
+struct tomoyo_profile {
+ const struct tomoyo_path_info *comment;
+ struct tomoyo_preference *learning;
+ struct tomoyo_preference *permissive;
+ struct tomoyo_preference *enforcing;
+ struct tomoyo_preference preference;
+ u8 default_config;
+ u8 config[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAX_MAC_CATEGORY_INDEX];
};
/********** Function prototypes. **********/
+extern asmlinkage long sys_getpid(void);
+extern asmlinkage long sys_getppid(void);
+
+/* Check whether the given string starts with the given keyword. */
+bool tomoyo_str_starts(char **src, const char *find);
+/* Get tomoyo_realpath() of current process. */
+const char *tomoyo_get_exe(void);
+/* Format string. */
+void tomoyo_normalize_line(unsigned char *buffer);
+/* Print warning or error message on console. */
+void tomoyo_warn_log(struct tomoyo_request_info *r, const char *fmt, ...)
+ __attribute__ ((format(printf, 2, 3)));
+/* Check all profiles currently assigned to domains are defined. */
+void tomoyo_check_profile(void);
+/* Open operation for /sys/kernel/security/tomoyo/ interface. */
+int tomoyo_open_control(const u8 type, struct file *file);
+/* Close /sys/kernel/security/tomoyo/ interface. */
+int tomoyo_close_control(struct file *file);
+/* Read operation for /sys/kernel/security/tomoyo/ interface. */
+int tomoyo_read_control(struct file *file, char __user *buffer,
+ const int buffer_len);
+/* Write operation for /sys/kernel/security/tomoyo/ interface. */
+int tomoyo_write_control(struct file *file, const char __user *buffer,
+ const int buffer_len);
+/* Check whether the domain has too many ACL entries to hold. */
+bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r);
+/* Print out of memory warning message. */
+void tomoyo_warn_oom(const char *function);
/* Check whether the given name matches the given name_union. */
bool tomoyo_compare_name_union(const struct tomoyo_path_info *name,
const struct tomoyo_name_union *ptr);
-/* Check whether the domain has too many ACL entries to hold. */
-bool tomoyo_domain_quota_is_ok(struct tomoyo_domain_info * const domain);
+/* Check whether the given number matches the given number_union. */
+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, ...)
__attribute__ ((format(printf, 2, 3)));
/* Check whether the domainname is correct. */
-bool tomoyo_is_correct_domain(const unsigned char *domainname);
+bool tomoyo_correct_domain(const unsigned char *domainname);
/* Check whether the token is correct. */
-bool tomoyo_is_correct_path(const char *filename, const s8 start_type,
- const s8 pattern_type, const s8 end_type);
+bool tomoyo_correct_path(const char *filename);
+bool tomoyo_correct_word(const char *string);
/* Check whether the token can be a domainname. */
-bool tomoyo_is_domain_def(const unsigned char *buffer);
+bool tomoyo_domain_def(const unsigned char *buffer);
bool tomoyo_parse_name_union(const char *filename,
struct tomoyo_name_union *ptr);
/* Check whether the given filename matches the given path_group. */
bool tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
- const struct tomoyo_path_group *group,
- const bool may_use_pattern);
+ const struct tomoyo_group *group);
+/* Check whether the given value matches the given number_group. */
+bool tomoyo_number_matches_group(const unsigned long min,
+ const unsigned long max,
+ const struct tomoyo_group *group);
/* Check whether the given filename matches the given pattern. */
bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
const struct tomoyo_path_info *pattern);
-/* Read "alias" entry in exception policy. */
-bool tomoyo_read_alias_policy(struct tomoyo_io_buffer *head);
-/*
- * Read "initialize_domain" and "no_initialize_domain" entry
- * in exception policy.
- */
-bool tomoyo_read_domain_initializer_policy(struct tomoyo_io_buffer *head);
-/* Read "keep_domain" and "no_keep_domain" entry in exception policy. */
-bool tomoyo_read_domain_keeper_policy(struct tomoyo_io_buffer *head);
-/* Read "file_pattern" entry in exception policy. */
-bool tomoyo_read_file_pattern(struct tomoyo_io_buffer *head);
-/* Read "path_group" entry in exception policy. */
-bool tomoyo_read_path_group_policy(struct tomoyo_io_buffer *head);
-/* Read "allow_read" entry in exception policy. */
-bool tomoyo_read_globally_readable_policy(struct tomoyo_io_buffer *head);
-/* Read "deny_rewrite" entry in exception policy. */
-bool tomoyo_read_no_rewrite_policy(struct tomoyo_io_buffer *head);
+
+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);
/* Write domain policy violation warning message to console? */
bool tomoyo_verbose_mode(const struct tomoyo_domain_info *domain);
-/* Convert double path operation to operation name. */
-const char *tomoyo_path22keyword(const u8 operation);
/* Get the last component of the given domainname. */
const char *tomoyo_get_last_name(const struct tomoyo_domain_info *domain);
-/* Get warning message. */
-const char *tomoyo_get_msg(const bool is_enforce);
-/* Convert single path operation to operation name. */
-const char *tomoyo_path2keyword(const u8 operation);
-/* Create "alias" entry in exception policy. */
-int tomoyo_write_alias_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);
+/* Fill "struct tomoyo_request_info". */
+int tomoyo_init_request_info(struct tomoyo_request_info *r,
+ struct tomoyo_domain_info *domain,
+ const u8 index);
+/* Check permission for mount operation. */
+int tomoyo_mount_permission(char *dev_name, struct path *path, char *type,
+ unsigned long flags, void *data_page);
+/* Create "aggregator" entry in exception policy. */
+int tomoyo_write_aggregator_policy(char *data, 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",
const bool is_delete);
/* Create "allow_read" entry in exception policy. */
int tomoyo_write_globally_readable_policy(char *data, const bool is_delete);
+/* Create "allow_mount" entry in domain policy. */
+int tomoyo_write_mount_policy(char *data, struct tomoyo_domain_info *domain,
+ const bool is_delete);
/* Create "deny_rewrite" entry in exception policy. */
int tomoyo_write_no_rewrite_policy(char *data, const bool is_delete);
/* Create "file_pattern" entry in exception policy. */
int tomoyo_write_pattern_policy(char *data, const bool is_delete);
-/* Create "path_group" entry in exception policy. */
-int tomoyo_write_path_group_policy(char *data, const bool is_delete);
+/* Create "path_group"/"number_group" entry in exception policy. */
+int tomoyo_write_group(char *data, const bool is_delete, const u8 type);
+int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
+ __attribute__ ((format(printf, 2, 3)));
/* Find a domain by the given name. */
struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
/* Find or create a domain by the given name. */
struct tomoyo_domain_info *tomoyo_find_or_assign_new_domain(const char *
domainname,
const u8 profile);
-
-/* Allocate memory for "struct tomoyo_path_group". */
-struct tomoyo_path_group *tomoyo_get_path_group(const char *group_name);
+struct tomoyo_profile *tomoyo_profile(const u8 profile);
+/*
+ * Allocate memory for "struct tomoyo_path_group"/"struct tomoyo_number_group".
+ */
+struct tomoyo_group *tomoyo_get_group(const char *group_name, const u8 type);
/* Check mode for specified functionality. */
unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
/* Run policy loader when /sbin/init starts. */
void tomoyo_load_policy(const char *filename);
-/* Convert binary string to ascii string. */
-int tomoyo_encode(char *buffer, int buflen, const char *str);
+void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
-/* Returns realpath(3) of the given pathname but ignores chroot'ed root. */
-int tomoyo_realpath_from_path2(struct path *path, char *newname,
- int newname_len);
+/* Convert binary string to ascii string. */
+char *tomoyo_encode(const char *str);
/*
- * Returns realpath(3) of the given pathname but ignores chroot'ed root.
- * These functions use kzalloc(), so the caller must call kfree()
- * if these functions didn't return NULL.
+ * Returns realpath(3) of the given pathname except that
+ * ignores chroot'ed root and does not follow the final symlink.
*/
-char *tomoyo_realpath(const char *pathname);
+char *tomoyo_realpath_nofollow(const char *pathname);
/*
- * Same with tomoyo_realpath() except that it doesn't follow the final symlink.
+ * Returns realpath(3) of the given pathname except that
+ * ignores chroot'ed root and the pathname is already solved.
*/
-char *tomoyo_realpath_nofollow(const char *pathname);
-/* Same with tomoyo_realpath() except that the pathname is already solved. */
char *tomoyo_realpath_from_path(struct path *path);
+/* Get patterned pathname. */
+const char *tomoyo_file_pattern(const struct tomoyo_path_info *filename);
/* Check memory quota. */
bool tomoyo_memory_ok(void *ptr);
const struct tomoyo_path_info *tomoyo_get_name(const char *name);
/* Check for memory usage. */
-int tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
+void tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
/* Set memory quota. */
int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
-/* Initialize realpath related code. */
-void __init tomoyo_realpath_init(void);
-int tomoyo_check_exec_perm(struct tomoyo_domain_info *domain,
+/* Initialize mm related code. */
+void __init tomoyo_mm_init(void);
+int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
const struct tomoyo_path_info *filename);
int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
struct path *path, const int flag);
+int tomoyo_path_number_perm(const u8 operation, struct path *path,
+ unsigned long number);
+int tomoyo_mkdev_perm(const u8 operation, struct path *path,
+ const unsigned int mode, unsigned int dev);
int tomoyo_path_perm(const u8 operation, struct path *path);
int tomoyo_path2_perm(const u8 operation, struct path *path1,
struct path *path2);
-int tomoyo_check_rewrite_permission(struct file *filp);
int tomoyo_find_next_domain(struct linux_binprm *bprm);
+void tomoyo_print_ulong(char *buffer, const int buffer_len,
+ const unsigned long value, const u8 type);
+
/* Drop refcount on tomoyo_name_union. */
void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
void tomoyo_memory_free(void *ptr);
+int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
+ bool is_delete, struct tomoyo_domain_info *domain,
+ bool (*check_duplicate) (const struct tomoyo_acl_info
+ *,
+ const struct tomoyo_acl_info
+ *),
+ bool (*merge_duplicate) (struct tomoyo_acl_info *,
+ struct tomoyo_acl_info *,
+ const bool));
+int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size,
+ bool is_delete, struct list_head *list,
+ bool (*check_duplicate) (const struct tomoyo_acl_head
+ *,
+ const struct tomoyo_acl_head
+ *));
+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. **********/
/* Lock for GC. */
/* The list for "struct tomoyo_domain_info". */
extern struct list_head tomoyo_domain_list;
-extern struct list_head tomoyo_path_group_list;
-extern struct list_head tomoyo_domain_initializer_list;
-extern struct list_head tomoyo_domain_keeper_list;
-extern struct list_head tomoyo_alias_list;
-extern struct list_head tomoyo_globally_readable_list;
-extern struct list_head tomoyo_pattern_list;
-extern struct list_head tomoyo_no_rewrite_list;
-extern struct list_head tomoyo_policy_manager_list;
+extern struct list_head tomoyo_policy_list[TOMOYO_MAX_POLICY];
+extern struct list_head tomoyo_group_list[TOMOYO_MAX_GROUP];
extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH];
/* Lock for protecting policy. */
/* The kernel's domain. */
extern struct tomoyo_domain_info tomoyo_kernel_domain;
+extern const char *tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
+extern const char *tomoyo_mkdev_keyword[TOMOYO_MAX_MKDEV_OPERATION];
+extern const char *tomoyo_path2_keyword[TOMOYO_MAX_PATH2_OPERATION];
+extern const char *tomoyo_path_number_keyword[TOMOYO_MAX_PATH_NUMBER_OPERATION];
+
+extern unsigned int tomoyo_quota_for_query;
+extern unsigned int tomoyo_query_memory_size;
+
/********** Inlined functions. **********/
static inline int tomoyo_read_lock(void)
}
/**
- * tomoyo_is_valid - Check whether the character is a valid char.
+ * tomoyo_valid - Check whether the character is a valid char.
*
* @c: The character to check.
*
* Returns true if @c is a valid character, false otherwise.
*/
-static inline bool tomoyo_is_valid(const unsigned char c)
+static inline bool tomoyo_valid(const unsigned char c)
{
return c > ' ' && c < 127;
}
/**
- * tomoyo_is_invalid - Check whether the character is an invalid char.
+ * tomoyo_invalid - Check whether the character is an invalid char.
*
* @c: The character to check.
*
* Returns true if @c is an invalid character, false otherwise.
*/
-static inline bool tomoyo_is_invalid(const unsigned char c)
+static inline bool tomoyo_invalid(const unsigned char c)
{
return c && (c <= ' ' || c >= 127);
}
}
}
-static inline void tomoyo_put_path_group(struct tomoyo_path_group *group)
+static inline void tomoyo_put_group(struct tomoyo_group *group)
{
if (group)
atomic_dec(&group->users);
return task_cred_xxx(task, security);
}
-static inline bool tomoyo_is_same_acl_head(const struct tomoyo_acl_info *p1,
+static inline bool tomoyo_same_acl_head(const struct tomoyo_acl_info *p1,
const struct tomoyo_acl_info *p2)
{
return p1->type == p2->type;
}
-static inline bool tomoyo_is_same_name_union
+static inline bool tomoyo_same_name_union
(const struct tomoyo_name_union *p1, const struct tomoyo_name_union *p2)
{
return p1->filename == p2->filename && p1->group == p2->group &&
p1->is_group == p2->is_group;
}
-static inline bool tomoyo_is_same_path_acl(const struct tomoyo_path_acl *p1,
- const struct tomoyo_path_acl *p2)
-{
- return tomoyo_is_same_acl_head(&p1->head, &p2->head) &&
- tomoyo_is_same_name_union(&p1->name, &p2->name);
-}
-
-static inline bool tomoyo_is_same_path2_acl(const struct tomoyo_path2_acl *p1,
- const struct tomoyo_path2_acl *p2)
+static inline bool tomoyo_same_number_union
+(const struct tomoyo_number_union *p1, const struct tomoyo_number_union *p2)
{
- return tomoyo_is_same_acl_head(&p1->head, &p2->head) &&
- tomoyo_is_same_name_union(&p1->name1, &p2->name1) &&
- tomoyo_is_same_name_union(&p1->name2, &p2->name2);
-}
-
-static inline bool tomoyo_is_same_domain_initializer_entry
-(const struct tomoyo_domain_initializer_entry *p1,
- const struct tomoyo_domain_initializer_entry *p2)
-{
- return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
- && p1->domainname == p2->domainname
- && p1->program == p2->program;
-}
-
-static inline bool tomoyo_is_same_domain_keeper_entry
-(const struct tomoyo_domain_keeper_entry *p1,
- const struct tomoyo_domain_keeper_entry *p2)
-{
- return p1->is_not == p2->is_not && p1->is_last_name == p2->is_last_name
- && p1->domainname == p2->domainname
- && p1->program == p2->program;
-}
-
-static inline bool tomoyo_is_same_alias_entry
-(const struct tomoyo_alias_entry *p1, const struct tomoyo_alias_entry *p2)
-{
- return p1->original_name == p2->original_name &&
- p1->aliased_name == p2->aliased_name;
+ return p1->values[0] == p2->values[0] && p1->values[1] == p2->values[1]
+ && p1->group == p2->group && p1->min_type == p2->min_type &&
+ p1->max_type == p2->max_type && p1->is_group == p2->is_group;
}
/**
* 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