#include <linux/list.h>
#include <linux/cred.h>
#include <linux/poll.h>
-struct linux_binprm;
+#include <linux/binfmts.h>
+#include <linux/highmem.h>
/********** Constants definitions. **********/
/* Group number is an integer between 0 and 255. */
#define TOMOYO_MAX_ACL_GROUPS 256
+/* Index numbers for "struct tomoyo_condition". */
+enum tomoyo_conditions_index {
+ TOMOYO_TASK_UID, /* current_uid() */
+ TOMOYO_TASK_EUID, /* current_euid() */
+ TOMOYO_TASK_SUID, /* current_suid() */
+ TOMOYO_TASK_FSUID, /* current_fsuid() */
+ TOMOYO_TASK_GID, /* current_gid() */
+ TOMOYO_TASK_EGID, /* current_egid() */
+ TOMOYO_TASK_SGID, /* current_sgid() */
+ TOMOYO_TASK_FSGID, /* current_fsgid() */
+ TOMOYO_TASK_PID, /* sys_getpid() */
+ TOMOYO_TASK_PPID, /* sys_getppid() */
+ TOMOYO_EXEC_ARGC, /* "struct linux_binprm *"->argc */
+ TOMOYO_EXEC_ENVC, /* "struct linux_binprm *"->envc */
+ TOMOYO_TYPE_IS_SOCKET, /* S_IFSOCK */
+ TOMOYO_TYPE_IS_SYMLINK, /* S_IFLNK */
+ TOMOYO_TYPE_IS_FILE, /* S_IFREG */
+ TOMOYO_TYPE_IS_BLOCK_DEV, /* S_IFBLK */
+ TOMOYO_TYPE_IS_DIRECTORY, /* S_IFDIR */
+ TOMOYO_TYPE_IS_CHAR_DEV, /* S_IFCHR */
+ TOMOYO_TYPE_IS_FIFO, /* S_IFIFO */
+ TOMOYO_MODE_SETUID, /* S_ISUID */
+ TOMOYO_MODE_SETGID, /* S_ISGID */
+ TOMOYO_MODE_STICKY, /* S_ISVTX */
+ TOMOYO_MODE_OWNER_READ, /* S_IRUSR */
+ TOMOYO_MODE_OWNER_WRITE, /* S_IWUSR */
+ TOMOYO_MODE_OWNER_EXECUTE, /* S_IXUSR */
+ TOMOYO_MODE_GROUP_READ, /* S_IRGRP */
+ TOMOYO_MODE_GROUP_WRITE, /* S_IWGRP */
+ TOMOYO_MODE_GROUP_EXECUTE, /* S_IXGRP */
+ TOMOYO_MODE_OTHERS_READ, /* S_IROTH */
+ TOMOYO_MODE_OTHERS_WRITE, /* S_IWOTH */
+ TOMOYO_MODE_OTHERS_EXECUTE, /* S_IXOTH */
+ TOMOYO_EXEC_REALPATH,
+ TOMOYO_SYMLINK_TARGET,
+ TOMOYO_PATH1_UID,
+ TOMOYO_PATH1_GID,
+ TOMOYO_PATH1_INO,
+ TOMOYO_PATH1_MAJOR,
+ TOMOYO_PATH1_MINOR,
+ TOMOYO_PATH1_PERM,
+ TOMOYO_PATH1_TYPE,
+ TOMOYO_PATH1_DEV_MAJOR,
+ TOMOYO_PATH1_DEV_MINOR,
+ TOMOYO_PATH2_UID,
+ TOMOYO_PATH2_GID,
+ TOMOYO_PATH2_INO,
+ TOMOYO_PATH2_MAJOR,
+ TOMOYO_PATH2_MINOR,
+ TOMOYO_PATH2_PERM,
+ TOMOYO_PATH2_TYPE,
+ TOMOYO_PATH2_DEV_MAJOR,
+ TOMOYO_PATH2_DEV_MINOR,
+ TOMOYO_PATH1_PARENT_UID,
+ TOMOYO_PATH1_PARENT_GID,
+ TOMOYO_PATH1_PARENT_INO,
+ TOMOYO_PATH1_PARENT_PERM,
+ TOMOYO_PATH2_PARENT_UID,
+ TOMOYO_PATH2_PARENT_GID,
+ TOMOYO_PATH2_PARENT_INO,
+ TOMOYO_PATH2_PARENT_PERM,
+ TOMOYO_MAX_CONDITION_KEYWORD,
+ TOMOYO_NUMBER_UNION,
+ TOMOYO_NAME_UNION,
+ TOMOYO_ARGV_ENTRY,
+ TOMOYO_ENVP_ENTRY,
+};
+
+
+/* Index numbers for stat(). */
+enum tomoyo_path_stat_index {
+ /* Do not change this order. */
+ TOMOYO_PATH1,
+ TOMOYO_PATH1_PARENT,
+ TOMOYO_PATH2,
+ TOMOYO_PATH2_PARENT,
+ TOMOYO_MAX_PATH_STAT
+};
+
/* Index numbers for operation mode. */
enum tomoyo_mode_index {
TOMOYO_CONFIG_DISABLED,
TOMOYO_ID_TRANSITION_CONTROL,
TOMOYO_ID_AGGREGATOR,
TOMOYO_ID_MANAGER,
+ TOMOYO_ID_CONDITION,
TOMOYO_ID_NAME,
TOMOYO_ID_ACL,
TOMOYO_ID_DOMAIN,
enum tomoyo_securityfs_interface_index {
TOMOYO_DOMAINPOLICY,
TOMOYO_EXCEPTIONPOLICY,
- TOMOYO_DOMAIN_STATUS,
TOMOYO_PROCESS_STATUS,
TOMOYO_STAT,
TOMOYO_SELFDOMAIN,
/* Structure for request info. */
struct tomoyo_request_info {
+ /*
+ * For holding parameters specific to operations which deal files.
+ * NULL if not dealing files.
+ */
+ struct tomoyo_obj_info *obj;
+ /*
+ * For holding parameters specific to execve() request.
+ * NULL if not dealing do_execve().
+ */
+ struct tomoyo_execve *ee;
struct tomoyo_domain_info *domain;
/* For holding parameters. */
union {
struct tomoyo_number_union number;
};
+/* Subset of "struct stat". Used by conditional ACL and audit logs. */
+struct tomoyo_mini_stat {
+ uid_t uid;
+ gid_t gid;
+ ino_t ino;
+ mode_t mode;
+ dev_t dev;
+ dev_t rdev;
+};
+
+/* Structure for dumping argv[] and envp[] of "struct linux_binprm". */
+struct tomoyo_page_dump {
+ struct page *page; /* Previously dumped page. */
+ char *data; /* Contents of "page". Size is PAGE_SIZE. */
+};
+
+/* Structure for attribute checks in addition to pathname checks. */
+struct tomoyo_obj_info {
+ /*
+ * True if tomoyo_get_attributes() was already called, false otherwise.
+ */
+ bool validate_done;
+ /* True if @stat[] is valid. */
+ bool stat_valid[TOMOYO_MAX_PATH_STAT];
+ /* First pathname. Initialized with { NULL, NULL } if no path. */
+ struct path path1;
+ /* Second pathname. Initialized with { NULL, NULL } if no path. */
+ struct path path2;
+ /*
+ * Information on @path1, @path1's parent directory, @path2, @path2's
+ * parent directory.
+ */
+ struct tomoyo_mini_stat stat[TOMOYO_MAX_PATH_STAT];
+ /*
+ * Content of symbolic link to be created. NULL for operations other
+ * than symlink().
+ */
+ struct tomoyo_path_info *symlink_target;
+};
+
+/* Structure for argv[]. */
+struct tomoyo_argv {
+ unsigned long index;
+ const struct tomoyo_path_info *value;
+ bool is_not;
+};
+
+/* Structure for envp[]. */
+struct tomoyo_envp {
+ const struct tomoyo_path_info *name;
+ const struct tomoyo_path_info *value;
+ bool is_not;
+};
+
+/* Structure for execve() operation. */
+struct tomoyo_execve {
+ struct tomoyo_request_info r;
+ struct tomoyo_obj_info obj;
+ struct linux_binprm *bprm;
+ /* For dumping argv[] and envp[]. */
+ struct tomoyo_page_dump dump;
+ /* For temporary use. */
+ char *tmp; /* Size is TOMOYO_EXEC_TMPSIZE bytes */
+};
+
+/* Structure for entries which follows "struct tomoyo_condition". */
+struct tomoyo_condition_element {
+ /*
+ * Left hand operand. A "struct tomoyo_argv" for TOMOYO_ARGV_ENTRY, a
+ * "struct tomoyo_envp" for TOMOYO_ENVP_ENTRY is attached to the tail
+ * of the array of this struct.
+ */
+ u8 left;
+ /*
+ * Right hand operand. A "struct tomoyo_number_union" for
+ * TOMOYO_NUMBER_UNION, a "struct tomoyo_name_union" for
+ * TOMOYO_NAME_UNION is attached to the tail of the array of this
+ * struct.
+ */
+ u8 right;
+ /* Equation operator. True if equals or overlaps, false otherwise. */
+ bool equals;
+};
+
+/* Structure for optional arguments. */
+struct tomoyo_condition {
+ struct tomoyo_shared_acl_head head;
+ u32 size; /* Memory size allocated for this entry. */
+ u16 condc; /* Number of conditions in this struct. */
+ u16 numbers_count; /* Number of "struct tomoyo_number_union values". */
+ u16 names_count; /* Number of "struct tomoyo_name_union names". */
+ u16 argc; /* Number of "struct tomoyo_argv". */
+ u16 envc; /* Number of "struct tomoyo_envp". */
+ /*
+ * struct tomoyo_condition_element condition[condc];
+ * struct tomoyo_number_union values[numbers_count];
+ * struct tomoyo_name_union names[names_count];
+ * struct tomoyo_argv argv[argc];
+ * struct tomoyo_envp envp[envc];
+ */
+};
+
/* Common header for individual entries. */
struct tomoyo_acl_info {
struct list_head list;
+ struct tomoyo_condition *cond; /* Maybe NULL. */
bool is_deleted;
u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
} __packed;
unsigned int step;
unsigned int query_index;
u16 index;
+ u16 cond_index;
u8 acl_group_index;
+ u8 cond_step;
u8 bit;
u8 w_pos;
bool eof;
bool print_this_domain_only;
bool print_transition_related_only;
+ bool print_cond_part;
const char *w[TOMOYO_MAX_IO_READ_QUEUE];
} r;
struct {
bool tomoyo_compare_number_union(const unsigned long value,
const struct tomoyo_number_union *ptr);
+bool tomoyo_condition(struct tomoyo_request_info *r,
+ const struct tomoyo_condition *cond);
bool tomoyo_correct_domain(const unsigned char *domainname);
bool tomoyo_correct_path(const char *filename);
bool tomoyo_correct_word(const char *string);
bool tomoyo_domain_def(const unsigned char *buffer);
bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r);
+bool tomoyo_dump_page(struct linux_binprm *bprm, unsigned long pos,
+ struct tomoyo_page_dump *dump);
bool tomoyo_memory_ok(void *ptr);
bool tomoyo_number_matches_group(const unsigned long min,
const unsigned long max,
struct path *path2);
int tomoyo_path_number_perm(const u8 operation, struct path *path,
unsigned long number);
-int tomoyo_path_perm(const u8 operation, struct path *path);
+int tomoyo_path_perm(const u8 operation, struct path *path,
+ const char *target);
int tomoyo_path_permission(struct tomoyo_request_info *r, u8 operation,
const struct tomoyo_path_info *filename);
int tomoyo_poll_control(struct file *file, poll_table *wait);
const int buffer_len);
ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
const char __user *buffer, const int buffer_len);
+struct tomoyo_condition *tomoyo_get_condition(struct tomoyo_acl_param *param);
struct tomoyo_domain_info *tomoyo_assign_domain(const char *domainname,
const bool transit);
struct tomoyo_domain_info *tomoyo_find_domain(const char *domainname);
const u8 profile);
unsigned int tomoyo_check_flags(const struct tomoyo_domain_info *domain,
const u8 index);
+u8 tomoyo_parse_ulong(unsigned long *result, char **str);
void *tomoyo_commit_ok(void *data, const unsigned int size);
void __init tomoyo_load_builtin_policy(void);
void __init tomoyo_mm_init(void);
const struct tomoyo_acl_info *));
void tomoyo_check_profile(void);
void tomoyo_convert_time(time_t time, struct tomoyo_time *stamp);
+void tomoyo_del_condition(struct list_head *element);
void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
+void tomoyo_get_attributes(struct tomoyo_obj_info *obj);
void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns);
void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
__printf(2, 3);
/********** External variable definitions. **********/
extern bool tomoyo_policy_loaded;
+extern const char * const tomoyo_condition_keyword
+[TOMOYO_MAX_CONDITION_KEYWORD];
extern const char * const tomoyo_dif[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
extern const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
+ TOMOYO_MAX_MAC_CATEGORY_INDEX];
extern const u8 tomoyo_pn2mac[TOMOYO_MAX_PATH_NUMBER_OPERATION];
extern const u8 tomoyo_pnnn2mac[TOMOYO_MAX_MKDEV_OPERATION];
extern const u8 tomoyo_pp2mac[TOMOYO_MAX_PATH2_OPERATION];
+extern struct list_head tomoyo_condition_list;
extern struct list_head tomoyo_domain_list;
extern struct list_head tomoyo_name_list[TOMOYO_MAX_HASH];
extern struct list_head tomoyo_namespace_list;
srcu_read_unlock(&tomoyo_ss, idx);
}
+/**
+ * tomoyo_sys_getppid - Copy of getppid().
+ *
+ * Returns parent process's PID.
+ *
+ * Alpha does not have getppid() defined. To be able to build this module on
+ * Alpha, I have to copy getppid() from kernel/timer.c.
+ */
+static inline pid_t tomoyo_sys_getppid(void)
+{
+ pid_t pid;
+ rcu_read_lock();
+ pid = task_tgid_vnr(current->real_parent);
+ rcu_read_unlock();
+ return pid;
+}
+
+/**
+ * tomoyo_sys_getpid - Copy of getpid().
+ *
+ * Returns current thread's PID.
+ *
+ * Alpha does not have getpid() defined. To be able to build this module on
+ * Alpha, I have to copy getpid() from kernel/timer.c.
+ */
+static inline pid_t tomoyo_sys_getpid(void)
+{
+ return task_tgid_vnr(current);
+}
+
/**
* tomoyo_pathcmp - strcmp() for "struct tomoyo_path_info" structure.
*
}
}
+/**
+ * tomoyo_put_condition - Drop reference on "struct tomoyo_condition".
+ *
+ * @cond: Pointer to "struct tomoyo_condition". Maybe NULL.
+ *
+ * Returns nothing.
+ */
+static inline void tomoyo_put_condition(struct tomoyo_condition *cond)
+{
+ if (cond)
+ atomic_dec(&cond->head.users);
+}
+
/**
* tomoyo_put_group - Drop reference on "struct tomoyo_group".
*
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