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@ -38,6 +38,7 @@ struct linux_binprm;
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/* Profile number is an integer between 0 and 255. */
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#define TOMOYO_MAX_PROFILES 256
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/* Index numbers for operation mode. */
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enum tomoyo_mode_index {
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TOMOYO_CONFIG_DISABLED,
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TOMOYO_CONFIG_LEARNING,
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@ -46,6 +47,7 @@ enum tomoyo_mode_index {
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TOMOYO_CONFIG_USE_DEFAULT = 255
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};
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/* Index numbers for entry type. */
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enum tomoyo_policy_id {
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TOMOYO_ID_GROUP,
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TOMOYO_ID_PATH_GROUP,
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@ -59,37 +61,26 @@ enum tomoyo_policy_id {
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TOMOYO_MAX_POLICY
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};
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/* Index numbers for group entries. */
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enum tomoyo_group_id {
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TOMOYO_PATH_GROUP,
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TOMOYO_NUMBER_GROUP,
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TOMOYO_MAX_GROUP
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};
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/* Keywords for ACLs. */
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#define TOMOYO_KEYWORD_AGGREGATOR "aggregator "
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#define TOMOYO_KEYWORD_ALLOW_MOUNT "allow_mount "
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#define TOMOYO_KEYWORD_ALLOW_READ "allow_read "
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#define TOMOYO_KEYWORD_DELETE "delete "
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#define TOMOYO_KEYWORD_INITIALIZE_DOMAIN "initialize_domain "
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#define TOMOYO_KEYWORD_KEEP_DOMAIN "keep_domain "
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#define TOMOYO_KEYWORD_NO_INITIALIZE_DOMAIN "no_initialize_domain "
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#define TOMOYO_KEYWORD_NO_KEEP_DOMAIN "no_keep_domain "
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#define TOMOYO_KEYWORD_PATH_GROUP "path_group "
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#define TOMOYO_KEYWORD_NUMBER_GROUP "number_group "
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#define TOMOYO_KEYWORD_SELECT "select "
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#define TOMOYO_KEYWORD_USE_PROFILE "use_profile "
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#define TOMOYO_KEYWORD_QUOTA_EXCEEDED "quota_exceeded"
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#define TOMOYO_KEYWORD_TRANSITION_FAILED "transition_failed"
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/* A domain definition starts with <kernel>. */
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#define TOMOYO_ROOT_NAME "<kernel>"
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#define TOMOYO_ROOT_NAME_LEN (sizeof(TOMOYO_ROOT_NAME) - 1)
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/* Value type definition. */
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#define TOMOYO_VALUE_TYPE_INVALID 0
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#define TOMOYO_VALUE_TYPE_DECIMAL 1
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#define TOMOYO_VALUE_TYPE_OCTAL 2
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#define TOMOYO_VALUE_TYPE_HEXADECIMAL 3
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/* Index numbers for type of numeric values. */
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enum tomoyo_value_type {
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TOMOYO_VALUE_TYPE_INVALID,
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TOMOYO_VALUE_TYPE_DECIMAL,
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TOMOYO_VALUE_TYPE_OCTAL,
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TOMOYO_VALUE_TYPE_HEXADECIMAL,
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};
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/* Index numbers for domain transition control keywords. */
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enum tomoyo_transition_type {
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/* Do not change this order, */
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TOMOYO_TRANSITION_CONTROL_NO_INITIALIZE,
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@ -108,7 +99,7 @@ enum tomoyo_acl_entry_type_index {
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TOMOYO_TYPE_MOUNT_ACL,
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};
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/* Index numbers for File Controls. */
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/* Index numbers for access controls with one pathname. */
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enum tomoyo_path_acl_index {
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TOMOYO_TYPE_EXECUTE,
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TOMOYO_TYPE_READ,
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@ -130,6 +121,7 @@ enum tomoyo_mkdev_acl_index {
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TOMOYO_MAX_MKDEV_OPERATION
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};
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/* Index numbers for access controls with two pathnames. */
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enum tomoyo_path2_acl_index {
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TOMOYO_TYPE_LINK,
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TOMOYO_TYPE_RENAME,
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@ -137,6 +129,7 @@ enum tomoyo_path2_acl_index {
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TOMOYO_MAX_PATH2_OPERATION
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};
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/* Index numbers for access controls with one pathname and one number. */
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enum tomoyo_path_number_acl_index {
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TOMOYO_TYPE_CREATE,
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TOMOYO_TYPE_MKDIR,
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@ -149,6 +142,7 @@ enum tomoyo_path_number_acl_index {
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TOMOYO_MAX_PATH_NUMBER_OPERATION
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};
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/* Index numbers for /sys/kernel/security/tomoyo/ interfaces. */
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enum tomoyo_securityfs_interface_index {
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TOMOYO_DOMAINPOLICY,
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TOMOYO_EXCEPTIONPOLICY,
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@ -162,6 +156,19 @@ enum tomoyo_securityfs_interface_index {
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TOMOYO_MANAGER
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};
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/* Index numbers for special mount operations. */
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enum tomoyo_special_mount {
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TOMOYO_MOUNT_BIND, /* mount --bind /source /dest */
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TOMOYO_MOUNT_MOVE, /* mount --move /old /new */
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TOMOYO_MOUNT_REMOUNT, /* mount -o remount /dir */
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TOMOYO_MOUNT_MAKE_UNBINDABLE, /* mount --make-unbindable /dir */
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TOMOYO_MOUNT_MAKE_PRIVATE, /* mount --make-private /dir */
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TOMOYO_MOUNT_MAKE_SLAVE, /* mount --make-slave /dir */
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TOMOYO_MOUNT_MAKE_SHARED, /* mount --make-shared /dir */
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TOMOYO_MAX_SPECIAL_MOUNT
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};
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/* Index numbers for functionality. */
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enum tomoyo_mac_index {
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TOMOYO_MAC_FILE_EXECUTE,
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TOMOYO_MAC_FILE_OPEN,
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@ -189,37 +196,30 @@ enum tomoyo_mac_index {
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TOMOYO_MAX_MAC_INDEX
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};
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/* Index numbers for category of functionality. */
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enum tomoyo_mac_category_index {
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TOMOYO_MAC_CATEGORY_FILE,
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TOMOYO_MAX_MAC_CATEGORY_INDEX
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};
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#define TOMOYO_RETRY_REQUEST 1 /* Retry this request. */
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/*
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* Retry this request. Returned by tomoyo_supervisor() if policy violation has
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* occurred in enforcing mode and the userspace daemon decided to retry.
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*
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* We must choose a positive value in order to distinguish "granted" (which is
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* 0) and "rejected" (which is a negative value) and "retry".
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*/
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#define TOMOYO_RETRY_REQUEST 1
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/********** Structure definitions. **********/
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/*
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* tomoyo_acl_head is a structure which is used for holding elements not in
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* domain policy.
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* It has following fields.
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*
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* (1) "list" which is linked to tomoyo_policy_list[] .
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* (2) "is_deleted" is a bool which is true if marked as deleted, false
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* otherwise.
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*/
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/* Common header for holding ACL entries. */
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struct tomoyo_acl_head {
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struct list_head list;
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bool is_deleted;
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} __packed;
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/*
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* tomoyo_request_info is a structure which is used for holding
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*
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* (1) Domain information of current process.
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* (2) How many retries are made for this request.
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* (3) Profile number used for this request.
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* (4) Access control mode of the profile.
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*/
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/* Structure for request info. */
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struct tomoyo_request_info {
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struct tomoyo_domain_info *domain;
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/* For holding parameters. */
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@ -228,11 +228,13 @@ struct tomoyo_request_info {
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const struct tomoyo_path_info *filename;
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/* For using wildcards at tomoyo_find_next_domain(). */
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const struct tomoyo_path_info *matched_path;
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/* One of values in "enum tomoyo_path_acl_index". */
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u8 operation;
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} path;
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struct {
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const struct tomoyo_path_info *filename1;
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const struct tomoyo_path_info *filename2;
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/* One of values in "enum tomoyo_path2_acl_index". */
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u8 operation;
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} path2;
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struct {
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@ -240,11 +242,16 @@ struct tomoyo_request_info {
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unsigned int mode;
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unsigned int major;
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unsigned int minor;
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/* One of values in "enum tomoyo_mkdev_acl_index". */
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u8 operation;
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} mkdev;
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struct {
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const struct tomoyo_path_info *filename;
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unsigned long number;
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/*
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* One of values in
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* "enum tomoyo_path_number_acl_index".
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*/
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u8 operation;
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} path_number;
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struct {
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@ -263,26 +270,7 @@ struct tomoyo_request_info {
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u8 type;
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};
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/*
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* tomoyo_path_info is a structure which is used for holding a string data
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* used by TOMOYO.
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* This structure has several fields for supporting pattern matching.
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*
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* (1) "name" is the '\0' terminated string data.
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* (2) "hash" is full_name_hash(name, strlen(name)).
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* This allows tomoyo_pathcmp() to compare by hash before actually compare
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* using strcmp().
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* (3) "const_len" is the length of the initial segment of "name" which
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* consists entirely of non wildcard characters. In other words, the length
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* which we can compare two strings using strncmp().
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* (4) "is_dir" is a bool which is true if "name" ends with "/",
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* false otherwise.
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* TOMOYO distinguishes directory and non-directory. A directory ends with
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* "/" and non-directory does not end with "/".
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* (5) "is_patterned" is a bool which is true if "name" contains wildcard
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* characters, false otherwise. This allows TOMOYO to use "hash" and
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* strcmp() for string comparison if "is_patterned" is false.
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*/
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/* Structure for holding a token. */
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struct tomoyo_path_info {
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const char *name;
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u32 hash; /* = full_name_hash(name, strlen(name)) */
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@ -291,27 +279,30 @@ struct tomoyo_path_info {
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bool is_patterned; /* = tomoyo_path_contains_pattern(name) */
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};
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/*
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* tomoyo_name is a structure which is used for linking
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* "struct tomoyo_path_info" into tomoyo_name_list .
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*/
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/* Structure for holding string data. */
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struct tomoyo_name {
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struct list_head list;
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atomic_t users;
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struct tomoyo_path_info entry;
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};
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/* Structure for holding a word. */
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struct tomoyo_name_union {
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/* Either @filename or @group is NULL. */
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const struct tomoyo_path_info *filename;
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struct tomoyo_group *group;
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/* True if @group != NULL, false if @filename != NULL. */
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u8 is_group;
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};
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/* Structure for holding a number. */
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struct tomoyo_number_union {
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unsigned long values[2];
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struct tomoyo_group *group;
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struct tomoyo_group *group; /* Maybe NULL. */
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/* One of values in "enum tomoyo_value_type". */
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u8 min_type;
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u8 max_type;
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/* True if @group != NULL, false otherwise. */
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u8 is_group;
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};
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@ -335,56 +326,14 @@ struct tomoyo_number_group {
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struct tomoyo_number_union number;
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};
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/*
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* tomoyo_acl_info is a structure which is used for holding
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*
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* (1) "list" which is linked to the ->acl_info_list of
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* "struct tomoyo_domain_info"
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* (2) "is_deleted" is a bool which is true if this domain is marked as
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* "deleted", false otherwise.
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* (3) "type" which tells type of the entry.
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*
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* Packing "struct tomoyo_acl_info" allows
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* "struct tomoyo_path_acl" to embed "u16" and "struct tomoyo_path2_acl"
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* "struct tomoyo_path_number_acl" "struct tomoyo_mkdev_acl" to embed
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* "u8" without enlarging their structure size.
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*/
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/* Common header for individual entries. */
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struct tomoyo_acl_info {
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struct list_head list;
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bool is_deleted;
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u8 type; /* = one of values in "enum tomoyo_acl_entry_type_index". */
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u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
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} __packed;
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/*
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* tomoyo_domain_info is a structure which is used for holding permissions
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* (e.g. "allow_read /lib/libc-2.5.so") given to each domain.
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* It has following fields.
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*
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* (1) "list" which is linked to tomoyo_domain_list .
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* (2) "acl_info_list" which is linked to "struct tomoyo_acl_info".
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* (3) "domainname" which holds the name of the domain.
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* (4) "profile" which remembers profile number assigned to this domain.
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* (5) "is_deleted" is a bool which is true if this domain is marked as
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* "deleted", false otherwise.
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* (6) "quota_warned" is a bool which is used for suppressing warning message
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* when learning mode learned too much entries.
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* (7) "transition_failed" is a bool which is set to true when this domain was
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* unable to create a new domain at tomoyo_find_next_domain() because the
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* name of the domain to be created was too long or it could not allocate
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* memory. If set to true, more than one process continued execve()
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* without domain transition.
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* (9) "users" is an atomic_t that holds how many "struct cred"->security
|
|
|
|
|
* are referring this "struct tomoyo_domain_info". If is_deleted == true
|
|
|
|
|
* and users == 0, this struct will be kfree()d upon next garbage
|
|
|
|
|
* collection.
|
|
|
|
|
*
|
|
|
|
|
* A domain's lifecycle is an analogy of files on / directory.
|
|
|
|
|
* Multiple domains with the same domainname cannot be created (as with
|
|
|
|
|
* creating files with the same filename fails with -EEXIST).
|
|
|
|
|
* If a process reached a domain, that process can reside in that domain after
|
|
|
|
|
* that domain is marked as "deleted" (as with a process can access an already
|
|
|
|
|
* open()ed file after that file was unlink()ed).
|
|
|
|
|
*/
|
|
|
|
|
/* Structure for domain information. */
|
|
|
|
|
struct tomoyo_domain_info {
|
|
|
|
|
struct list_head list;
|
|
|
|
|
struct list_head acl_info_list;
|
|
|
|
@ -398,63 +347,32 @@ struct tomoyo_domain_info {
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* tomoyo_path_acl is a structure which is used for holding an
|
|
|
|
|
* entry with one pathname operation (e.g. open(), mkdir()).
|
|
|
|
|
* It has following fields.
|
|
|
|
|
*
|
|
|
|
|
* (1) "head" which is a "struct tomoyo_acl_info".
|
|
|
|
|
* (2) "perm" which is a bitmask of permitted operations.
|
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|
|
|
* (3) "name" is the pathname.
|
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|
|
|
*
|
|
|
|
|
* Directives held by this structure are "allow_execute", "allow_read",
|
|
|
|
|
* "allow_write", "allow_append", "allow_unlink", "allow_rmdir",
|
|
|
|
|
* "allow_truncate", "allow_symlink", "allow_chroot" and "allow_unmount".
|
|
|
|
|
* Structure for "file execute", "file read", "file write", "file append",
|
|
|
|
|
* "file unlink", "file getattr", "file rmdir", "file truncate",
|
|
|
|
|
* "file symlink", "file chroot" and "file unmount" directive.
|
|
|
|
|
*/
|
|
|
|
|
struct tomoyo_path_acl {
|
|
|
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_ACL */
|
|
|
|
|
u16 perm;
|
|
|
|
|
u16 perm; /* Bitmask of values in "enum tomoyo_path_acl_index". */
|
|
|
|
|
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".
|
|
|
|
|
*
|
|
|
|
|
* Structure for "file create", "file mkdir", "file mkfifo", "file mksock",
|
|
|
|
|
* "file ioctl", "file chmod", "file chown" and "file chgrp" directive.
|
|
|
|
|
*/
|
|
|
|
|
struct tomoyo_path_number_acl {
|
|
|
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH_NUMBER_ACL */
|
|
|
|
|
/* Bitmask of values in "enum tomoyo_path_number_acl_index". */
|
|
|
|
|
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".
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
/* Structure for "file mkblock" and "file mkchar" directive. */
|
|
|
|
|
struct tomoyo_mkdev_acl {
|
|
|
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */
|
|
|
|
|
u8 perm;
|
|
|
|
|
u8 perm; /* Bitmask of values in "enum tomoyo_mkdev_acl_index". */
|
|
|
|
|
struct tomoyo_name_union name;
|
|
|
|
|
struct tomoyo_number_union mode;
|
|
|
|
|
struct tomoyo_number_union major;
|
|
|
|
@ -462,38 +380,16 @@ struct tomoyo_mkdev_acl {
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* tomoyo_path2_acl is a structure which is used for holding an
|
|
|
|
|
* entry with two pathnames operation (i.e. link(), rename() and pivot_root()).
|
|
|
|
|
* It has following fields.
|
|
|
|
|
*
|
|
|
|
|
* (1) "head" which is a "struct tomoyo_acl_info".
|
|
|
|
|
* (2) "perm" which is a bitmask of permitted operations.
|
|
|
|
|
* (3) "name1" is the source/old pathname.
|
|
|
|
|
* (4) "name2" is the destination/new pathname.
|
|
|
|
|
*
|
|
|
|
|
* Directives held by this structure are "allow_rename", "allow_link" and
|
|
|
|
|
* "allow_pivot_root".
|
|
|
|
|
* Structure for "file rename", "file link" and "file pivot_root" directive.
|
|
|
|
|
*/
|
|
|
|
|
struct tomoyo_path2_acl {
|
|
|
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_PATH2_ACL */
|
|
|
|
|
u8 perm;
|
|
|
|
|
u8 perm; /* Bitmask of values in "enum tomoyo_path2_acl_index". */
|
|
|
|
|
struct tomoyo_name_union name1;
|
|
|
|
|
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".
|
|
|
|
|
*/
|
|
|
|
|
/* Structure for "file mount" directive. */
|
|
|
|
|
struct tomoyo_mount_acl {
|
|
|
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MOUNT_ACL */
|
|
|
|
|
struct tomoyo_name_union dev_name;
|
|
|
|
@ -550,18 +446,8 @@ struct tomoyo_io_buffer {
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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) "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.
|
|
|
|
|
* Structure for "initialize_domain"/"no_initialize_domain"/"keep_domain"/
|
|
|
|
|
* "no_keep_domain" keyword.
|
|
|
|
|
*/
|
|
|
|
|
struct tomoyo_transition_control {
|
|
|
|
|
struct tomoyo_acl_head head;
|
|
|
|
@ -572,32 +458,14 @@ struct tomoyo_transition_control {
|
|
|
|
|
const struct tomoyo_path_info *program; /* Maybe NULL */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* tomoyo_aggregator is a structure which is used for holding
|
|
|
|
|
* "aggregator" entries.
|
|
|
|
|
* It has following fields.
|
|
|
|
|
*
|
|
|
|
|
* (1) "head" is "struct tomoyo_acl_head".
|
|
|
|
|
* (2) "original_name" which is originally requested name.
|
|
|
|
|
* (3) "aggregated_name" which is name to rewrite.
|
|
|
|
|
*/
|
|
|
|
|
/* Structure for "aggregator" keyword. */
|
|
|
|
|
struct tomoyo_aggregator {
|
|
|
|
|
struct tomoyo_acl_head head;
|
|
|
|
|
const struct tomoyo_path_info *original_name;
|
|
|
|
|
const struct tomoyo_path_info *aggregated_name;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* tomoyo_manager is a structure which is used for holding list of
|
|
|
|
|
* domainnames or programs which are permitted to modify configuration via
|
|
|
|
|
* /sys/kernel/security/tomoyo/ interface.
|
|
|
|
|
* It has following fields.
|
|
|
|
|
*
|
|
|
|
|
* (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.
|
|
|
|
|
*/
|
|
|
|
|
/* Structure for policy manager. */
|
|
|
|
|
struct tomoyo_manager {
|
|
|
|
|
struct tomoyo_acl_head head;
|
|
|
|
|
bool is_domain; /* True if manager is a domainname. */
|
|
|
|
@ -612,6 +480,7 @@ struct tomoyo_preference {
|
|
|
|
|
bool permissive_verbose;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Structure for /sys/kernel/security/tomnoyo/profile interface. */
|
|
|
|
|
struct tomoyo_profile {
|
|
|
|
|
const struct tomoyo_path_info *comment;
|
|
|
|
|
struct tomoyo_preference *learning;
|
|
|
|
@ -624,148 +493,80 @@ struct tomoyo_profile {
|
|
|
|
|
|
|
|
|
|
/********** Function prototypes. **********/
|
|
|
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
/* Poll operation for /sys/kernel/security/tomoyo/ interface. */
|
|
|
|
|
int tomoyo_poll_control(struct file *file, poll_table *wait);
|
|
|
|
|
/* 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. */
|
|
|
|
|
const struct tomoyo_path_info *
|
|
|
|
|
tomoyo_compare_name_union(const struct tomoyo_path_info *name,
|
|
|
|
|
const struct tomoyo_name_union *ptr);
|
|
|
|
|
/* 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);
|
|
|
|
|
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);
|
|
|
|
|
/* Check whether the token is correct. */
|
|
|
|
|
bool tomoyo_correct_path(const char *filename);
|
|
|
|
|
bool tomoyo_correct_word(const char *string);
|
|
|
|
|
/* Check whether the token can be a domainname. */
|
|
|
|
|
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. */
|
|
|
|
|
const struct tomoyo_path_info *
|
|
|
|
|
tomoyo_path_matches_group(const struct tomoyo_path_info *pathname,
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
/* 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_mount_permission(char *dev_name, struct path *path,
|
|
|
|
|
const char *type, unsigned long flags,
|
|
|
|
|
void *data_page);
|
|
|
|
|
int tomoyo_write_aggregator(char *data, const bool is_delete);
|
|
|
|
|
int tomoyo_write_transition_control(char *data, const bool is_delete,
|
|
|
|
|
const u8 type);
|
|
|
|
|
/*
|
|
|
|
|
* Create "allow_execute", "allow_read", "allow_write", "allow_append",
|
|
|
|
|
* "allow_create", "allow_unlink", "allow_mkdir", "allow_rmdir",
|
|
|
|
|
* "allow_mkfifo", "allow_mksock", "allow_mkblock", "allow_mkchar",
|
|
|
|
|
* "allow_truncate", "allow_symlink", "allow_rename" and "allow_link" entry
|
|
|
|
|
* in domain policy.
|
|
|
|
|
*/
|
|
|
|
|
int tomoyo_write_file(char *data, struct tomoyo_domain_info *domain,
|
|
|
|
|
const bool is_delete);
|
|
|
|
|
/* Create "allow_mount" entry in domain policy. */
|
|
|
|
|
int tomoyo_write_mount(char *data, struct tomoyo_domain_info *domain,
|
|
|
|
|
const bool is_delete);
|
|
|
|
|
/* Create "path_group"/"number_group" entry in exception policy. */
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int tomoyo_write_group(char *data, const bool is_delete, const u8 type);
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int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
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__attribute__ ((format(printf, 2, 3)));
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/* Find a domain by the given name. */
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struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
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/* Find or create a domain by the given name. */
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struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
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const u8 profile);
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struct tomoyo_profile *tomoyo_profile(const u8 profile);
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/*
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* Allocate memory for "struct tomoyo_path_group"/"struct tomoyo_number_group".
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*/
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struct tomoyo_group *tomoyo_get_group(const char *group_name, const u8 type);
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/* Check mode for specified functionality. */
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unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
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const u8 index);
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/* Fill in "struct tomoyo_path_info" members. */
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void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
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/* Run policy loader when /sbin/init starts. */
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void tomoyo_load_policy(const char *filename);
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void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
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/* Convert binary string to ascii string. */
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char *tomoyo_encode(const char *str);
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/*
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* Returns realpath(3) of the given pathname except that
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* ignores chroot'ed root and does not follow the final symlink.
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*/
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char *tomoyo_realpath_nofollow(const char *pathname);
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/*
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* Returns realpath(3) of the given pathname except that
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* ignores chroot'ed root and the pathname is already solved.
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*/
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char *tomoyo_realpath_from_path(struct path *path);
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/* Check memory quota. */
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bool tomoyo_memory_ok(void *ptr);
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void *tomoyo_commit_ok(void *data, const unsigned int size);
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/*
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* Keep the given name on the RAM.
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* The RAM is shared, so NEVER try to modify or kfree() the returned name.
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*/
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const struct tomoyo_path_info *tomoyo_get_name(const char *name);
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/* Check for memory usage. */
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void tomoyo_read_memory_counter(struct tomoyo_io_buffer *head);
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/* Set memory quota. */
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int tomoyo_write_memory_quota(struct tomoyo_io_buffer *head);
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/* Initialize mm related code. */
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void __init tomoyo_mm_init(void);
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int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
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const struct tomoyo_path_info *filename);
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@ -779,18 +580,11 @@ int tomoyo_path_perm(const u8 operation, struct path *path);
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int tomoyo_path2_perm(const u8 operation, struct path *path1,
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struct path *path2);
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int tomoyo_find_next_domain(struct linux_binprm *bprm);
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void tomoyo_print_ulong(char *buffer, const int buffer_len,
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const unsigned long value, const u8 type);
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/* Drop refcount on tomoyo_name_union. */
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void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
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/* Run garbage collector. */
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void tomoyo_run_gc(void);
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void tomoyo_memory_free(void *ptr);
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int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
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bool is_delete, struct tomoyo_domain_info *domain,
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bool (*check_duplicate) (const struct tomoyo_acl_info
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@ -841,17 +635,36 @@ extern unsigned int tomoyo_query_memory_size;
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/********** Inlined functions. **********/
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/**
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* tomoyo_read_lock - Take lock for protecting policy.
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*
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* Returns index number for tomoyo_read_unlock().
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*/
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static inline int tomoyo_read_lock(void)
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{
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return srcu_read_lock(&tomoyo_ss);
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}
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/**
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* tomoyo_read_unlock - Release lock for protecting policy.
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*
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* @idx: Index number returned by tomoyo_read_lock().
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*
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* Returns nothing.
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*/
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static inline void tomoyo_read_unlock(int idx)
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{
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srcu_read_unlock(&tomoyo_ss, idx);
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}
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/* strcmp() for "struct tomoyo_path_info" structure. */
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/**
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* tomoyo_pathcmp - strcmp() for "struct tomoyo_path_info" structure.
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*
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* @a: Pointer to "struct tomoyo_path_info".
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* @b: Pointer to "struct tomoyo_path_info".
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*
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* Returns true if @a == @b, false otherwise.
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*/
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static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a,
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const struct tomoyo_path_info *b)
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{
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@ -882,6 +695,13 @@ static inline bool tomoyo_invalid(const unsigned char c)
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return c && (c <= ' ' || c >= 127);
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}
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/**
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* tomoyo_put_name - Drop reference on "struct tomoyo_name".
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*
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* @name: Pointer to "struct tomoyo_path_info". Maybe NULL.
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*
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* Returns nothing.
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*/
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static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
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{
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if (name) {
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@ -891,17 +711,36 @@ static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
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}
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}
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/**
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* tomoyo_put_group - Drop reference on "struct tomoyo_group".
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*
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* @group: Pointer to "struct tomoyo_group". Maybe NULL.
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*
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* Returns nothing.
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*/
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static inline void tomoyo_put_group(struct tomoyo_group *group)
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{
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if (group)
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atomic_dec(&group->users);
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}
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/**
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* tomoyo_domain - Get "struct tomoyo_domain_info" for current thread.
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*
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* Returns pointer to "struct tomoyo_domain_info" for current thread.
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*/
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static inline struct tomoyo_domain_info *tomoyo_domain(void)
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{
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return current_cred()->security;
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}
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/**
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* tomoyo_real_domain - Get "struct tomoyo_domain_info" for specified thread.
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*
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* @task: Pointer to "struct task_struct".
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*
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* Returns pointer to "struct tomoyo_security" for specified thread.
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*/
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static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
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*task)
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{
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@ -909,24 +748,40 @@ static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
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}
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static inline bool tomoyo_same_acl_head(const struct tomoyo_acl_info *p1,
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const struct tomoyo_acl_info *p2)
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const struct tomoyo_acl_info *p2)
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{
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return p1->type == p2->type;
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}
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/**
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* tomoyo_same_name_union - Check for duplicated "struct tomoyo_name_union" entry.
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*
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* @a: Pointer to "struct tomoyo_name_union".
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* @b: Pointer to "struct tomoyo_name_union".
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*
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* Returns true if @a == @b, false otherwise.
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*/
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static inline bool tomoyo_same_name_union
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(const struct tomoyo_name_union *p1, const struct tomoyo_name_union *p2)
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(const struct tomoyo_name_union *a, const struct tomoyo_name_union *b)
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{
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return p1->filename == p2->filename && p1->group == p2->group &&
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p1->is_group == p2->is_group;
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return a->filename == b->filename && a->group == b->group &&
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a->is_group == b->is_group;
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}
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/**
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* tomoyo_same_number_union - Check for duplicated "struct tomoyo_number_union" entry.
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*
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* @a: Pointer to "struct tomoyo_number_union".
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* @b: Pointer to "struct tomoyo_number_union".
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*
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* Returns true if @a == @b, false otherwise.
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*/
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static inline bool tomoyo_same_number_union
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(const struct tomoyo_number_union *p1, const struct tomoyo_number_union *p2)
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(const struct tomoyo_number_union *a, const struct tomoyo_number_union *b)
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{
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return p1->values[0] == p2->values[0] && p1->values[1] == p2->values[1]
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&& p1->group == p2->group && p1->min_type == p2->min_type &&
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p1->max_type == p2->max_type && p1->is_group == p2->is_group;
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return a->values[0] == b->values[0] && a->values[1] == b->values[1] &&
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a->group == b->group && a->min_type == b->min_type &&
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a->max_type == b->max_type && a->is_group == b->is_group;
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}
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/**
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