mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
1330 lines
40 KiB
C
1330 lines
40 KiB
C
/*
|
|
* security/tomoyo/common.h
|
|
*
|
|
* Header file for TOMOYO.
|
|
*
|
|
* Copyright (C) 2005-2011 NTT DATA CORPORATION
|
|
*/
|
|
|
|
#ifndef _SECURITY_TOMOYO_COMMON_H
|
|
#define _SECURITY_TOMOYO_COMMON_H
|
|
|
|
#include <linux/ctype.h>
|
|
#include <linux/string.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/file.h>
|
|
#include <linux/kmod.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/namei.h>
|
|
#include <linux/mount.h>
|
|
#include <linux/list.h>
|
|
#include <linux/cred.h>
|
|
#include <linux/poll.h>
|
|
#include <linux/binfmts.h>
|
|
#include <linux/highmem.h>
|
|
#include <linux/net.h>
|
|
#include <linux/inet.h>
|
|
#include <linux/in.h>
|
|
#include <linux/in6.h>
|
|
#include <linux/un.h>
|
|
#include <net/sock.h>
|
|
#include <net/af_unix.h>
|
|
#include <net/ip.h>
|
|
#include <net/ipv6.h>
|
|
#include <net/udp.h>
|
|
|
|
/********** Constants definitions. **********/
|
|
|
|
/*
|
|
* TOMOYO uses this hash only when appending a string into the string
|
|
* table. Frequency of appending strings is very low. So we don't need
|
|
* large (e.g. 64k) hash size. 256 will be sufficient.
|
|
*/
|
|
#define TOMOYO_HASH_BITS 8
|
|
#define TOMOYO_MAX_HASH (1u<<TOMOYO_HASH_BITS)
|
|
|
|
/*
|
|
* TOMOYO checks only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_SEQPACKET.
|
|
* Therefore, we don't need SOCK_MAX.
|
|
*/
|
|
#define TOMOYO_SOCK_MAX 6
|
|
|
|
#define TOMOYO_EXEC_TMPSIZE 4096
|
|
|
|
/* Garbage collector is trying to kfree() this element. */
|
|
#define TOMOYO_GC_IN_PROGRESS -1
|
|
|
|
/* Profile number is an integer between 0 and 255. */
|
|
#define TOMOYO_MAX_PROFILES 256
|
|
|
|
/* 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_CONFIG_LEARNING,
|
|
TOMOYO_CONFIG_PERMISSIVE,
|
|
TOMOYO_CONFIG_ENFORCING,
|
|
TOMOYO_CONFIG_MAX_MODE,
|
|
TOMOYO_CONFIG_WANT_REJECT_LOG = 64,
|
|
TOMOYO_CONFIG_WANT_GRANT_LOG = 128,
|
|
TOMOYO_CONFIG_USE_DEFAULT = 255,
|
|
};
|
|
|
|
/* Index numbers for entry type. */
|
|
enum tomoyo_policy_id {
|
|
TOMOYO_ID_GROUP,
|
|
TOMOYO_ID_ADDRESS_GROUP,
|
|
TOMOYO_ID_PATH_GROUP,
|
|
TOMOYO_ID_NUMBER_GROUP,
|
|
TOMOYO_ID_TRANSITION_CONTROL,
|
|
TOMOYO_ID_AGGREGATOR,
|
|
TOMOYO_ID_MANAGER,
|
|
TOMOYO_ID_CONDITION,
|
|
TOMOYO_ID_NAME,
|
|
TOMOYO_ID_ACL,
|
|
TOMOYO_ID_DOMAIN,
|
|
TOMOYO_MAX_POLICY
|
|
};
|
|
|
|
/* Index numbers for domain's attributes. */
|
|
enum tomoyo_domain_info_flags_index {
|
|
/* Quota warnning flag. */
|
|
TOMOYO_DIF_QUOTA_WARNED,
|
|
/*
|
|
* This domain was unable to create a new domain at
|
|
* tomoyo_find_next_domain() because the name of the domain to be
|
|
* created was too long or it could not allocate memory.
|
|
* More than one process continued execve() without domain transition.
|
|
*/
|
|
TOMOYO_DIF_TRANSITION_FAILED,
|
|
TOMOYO_MAX_DOMAIN_INFO_FLAGS
|
|
};
|
|
|
|
/* Index numbers for audit type. */
|
|
enum tomoyo_grant_log {
|
|
/* Follow profile's configuration. */
|
|
TOMOYO_GRANTLOG_AUTO,
|
|
/* Do not generate grant log. */
|
|
TOMOYO_GRANTLOG_NO,
|
|
/* Generate grant_log. */
|
|
TOMOYO_GRANTLOG_YES,
|
|
};
|
|
|
|
/* Index numbers for group entries. */
|
|
enum tomoyo_group_id {
|
|
TOMOYO_PATH_GROUP,
|
|
TOMOYO_NUMBER_GROUP,
|
|
TOMOYO_ADDRESS_GROUP,
|
|
TOMOYO_MAX_GROUP
|
|
};
|
|
|
|
/* Index numbers for type of numeric values. */
|
|
enum tomoyo_value_type {
|
|
TOMOYO_VALUE_TYPE_INVALID,
|
|
TOMOYO_VALUE_TYPE_DECIMAL,
|
|
TOMOYO_VALUE_TYPE_OCTAL,
|
|
TOMOYO_VALUE_TYPE_HEXADECIMAL,
|
|
};
|
|
|
|
/* Index numbers for domain transition control keywords. */
|
|
enum tomoyo_transition_type {
|
|
/* Do not change this order, */
|
|
TOMOYO_TRANSITION_CONTROL_NO_RESET,
|
|
TOMOYO_TRANSITION_CONTROL_RESET,
|
|
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,
|
|
TOMOYO_TYPE_INET_ACL,
|
|
TOMOYO_TYPE_UNIX_ACL,
|
|
TOMOYO_TYPE_ENV_ACL,
|
|
TOMOYO_TYPE_MANUAL_TASK_ACL,
|
|
};
|
|
|
|
/* Index numbers for access controls with one pathname. */
|
|
enum tomoyo_path_acl_index {
|
|
TOMOYO_TYPE_EXECUTE,
|
|
TOMOYO_TYPE_READ,
|
|
TOMOYO_TYPE_WRITE,
|
|
TOMOYO_TYPE_APPEND,
|
|
TOMOYO_TYPE_UNLINK,
|
|
TOMOYO_TYPE_GETATTR,
|
|
TOMOYO_TYPE_RMDIR,
|
|
TOMOYO_TYPE_TRUNCATE,
|
|
TOMOYO_TYPE_SYMLINK,
|
|
TOMOYO_TYPE_CHROOT,
|
|
TOMOYO_TYPE_UMOUNT,
|
|
TOMOYO_MAX_PATH_OPERATION
|
|
};
|
|
|
|
/* Index numbers for /sys/kernel/security/tomoyo/stat interface. */
|
|
enum tomoyo_memory_stat_type {
|
|
TOMOYO_MEMORY_POLICY,
|
|
TOMOYO_MEMORY_AUDIT,
|
|
TOMOYO_MEMORY_QUERY,
|
|
TOMOYO_MAX_MEMORY_STAT
|
|
};
|
|
|
|
enum tomoyo_mkdev_acl_index {
|
|
TOMOYO_TYPE_MKBLOCK,
|
|
TOMOYO_TYPE_MKCHAR,
|
|
TOMOYO_MAX_MKDEV_OPERATION
|
|
};
|
|
|
|
/* Index numbers for socket operations. */
|
|
enum tomoyo_network_acl_index {
|
|
TOMOYO_NETWORK_BIND, /* bind() operation. */
|
|
TOMOYO_NETWORK_LISTEN, /* listen() operation. */
|
|
TOMOYO_NETWORK_CONNECT, /* connect() operation. */
|
|
TOMOYO_NETWORK_SEND, /* send() operation. */
|
|
TOMOYO_MAX_NETWORK_OPERATION
|
|
};
|
|
|
|
/* Index numbers for access controls with two pathnames. */
|
|
enum tomoyo_path2_acl_index {
|
|
TOMOYO_TYPE_LINK,
|
|
TOMOYO_TYPE_RENAME,
|
|
TOMOYO_TYPE_PIVOT_ROOT,
|
|
TOMOYO_MAX_PATH2_OPERATION
|
|
};
|
|
|
|
/* Index numbers for access controls with one pathname and one number. */
|
|
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
|
|
};
|
|
|
|
/* Index numbers for /sys/kernel/security/tomoyo/ interfaces. */
|
|
enum tomoyo_securityfs_interface_index {
|
|
TOMOYO_DOMAINPOLICY,
|
|
TOMOYO_EXCEPTIONPOLICY,
|
|
TOMOYO_PROCESS_STATUS,
|
|
TOMOYO_STAT,
|
|
TOMOYO_AUDIT,
|
|
TOMOYO_VERSION,
|
|
TOMOYO_PROFILE,
|
|
TOMOYO_QUERY,
|
|
TOMOYO_MANAGER
|
|
};
|
|
|
|
/* Index numbers for special mount operations. */
|
|
enum tomoyo_special_mount {
|
|
TOMOYO_MOUNT_BIND, /* mount --bind /source /dest */
|
|
TOMOYO_MOUNT_MOVE, /* mount --move /old /new */
|
|
TOMOYO_MOUNT_REMOUNT, /* mount -o remount /dir */
|
|
TOMOYO_MOUNT_MAKE_UNBINDABLE, /* mount --make-unbindable /dir */
|
|
TOMOYO_MOUNT_MAKE_PRIVATE, /* mount --make-private /dir */
|
|
TOMOYO_MOUNT_MAKE_SLAVE, /* mount --make-slave /dir */
|
|
TOMOYO_MOUNT_MAKE_SHARED, /* mount --make-shared /dir */
|
|
TOMOYO_MAX_SPECIAL_MOUNT
|
|
};
|
|
|
|
/* Index numbers for functionality. */
|
|
enum tomoyo_mac_index {
|
|
TOMOYO_MAC_FILE_EXECUTE,
|
|
TOMOYO_MAC_FILE_OPEN,
|
|
TOMOYO_MAC_FILE_CREATE,
|
|
TOMOYO_MAC_FILE_UNLINK,
|
|
TOMOYO_MAC_FILE_GETATTR,
|
|
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_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_MAC_NETWORK_INET_STREAM_BIND,
|
|
TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN,
|
|
TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT,
|
|
TOMOYO_MAC_NETWORK_INET_DGRAM_BIND,
|
|
TOMOYO_MAC_NETWORK_INET_DGRAM_SEND,
|
|
TOMOYO_MAC_NETWORK_INET_RAW_BIND,
|
|
TOMOYO_MAC_NETWORK_INET_RAW_SEND,
|
|
TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND,
|
|
TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN,
|
|
TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT,
|
|
TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND,
|
|
TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND,
|
|
TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND,
|
|
TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN,
|
|
TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT,
|
|
TOMOYO_MAC_ENVIRON,
|
|
TOMOYO_MAX_MAC_INDEX
|
|
};
|
|
|
|
/* Index numbers for category of functionality. */
|
|
enum tomoyo_mac_category_index {
|
|
TOMOYO_MAC_CATEGORY_FILE,
|
|
TOMOYO_MAC_CATEGORY_NETWORK,
|
|
TOMOYO_MAC_CATEGORY_MISC,
|
|
TOMOYO_MAX_MAC_CATEGORY_INDEX
|
|
};
|
|
|
|
/*
|
|
* Retry this request. Returned by tomoyo_supervisor() if policy violation has
|
|
* occurred in enforcing mode and the userspace daemon decided to retry.
|
|
*
|
|
* We must choose a positive value in order to distinguish "granted" (which is
|
|
* 0) and "rejected" (which is a negative value) and "retry".
|
|
*/
|
|
#define TOMOYO_RETRY_REQUEST 1
|
|
|
|
/* Index numbers for /sys/kernel/security/tomoyo/stat interface. */
|
|
enum tomoyo_policy_stat_type {
|
|
/* Do not change this order. */
|
|
TOMOYO_STAT_POLICY_UPDATES,
|
|
TOMOYO_STAT_POLICY_LEARNING, /* == TOMOYO_CONFIG_LEARNING */
|
|
TOMOYO_STAT_POLICY_PERMISSIVE, /* == TOMOYO_CONFIG_PERMISSIVE */
|
|
TOMOYO_STAT_POLICY_ENFORCING, /* == TOMOYO_CONFIG_ENFORCING */
|
|
TOMOYO_MAX_POLICY_STAT
|
|
};
|
|
|
|
/* Index numbers for profile's PREFERENCE values. */
|
|
enum tomoyo_pref_index {
|
|
TOMOYO_PREF_MAX_AUDIT_LOG,
|
|
TOMOYO_PREF_MAX_LEARNING_ENTRY,
|
|
TOMOYO_MAX_PREF
|
|
};
|
|
|
|
/********** Structure definitions. **********/
|
|
|
|
/* Common header for holding ACL entries. */
|
|
struct tomoyo_acl_head {
|
|
struct list_head list;
|
|
s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
|
|
} __packed;
|
|
|
|
/* Common header for shared entries. */
|
|
struct tomoyo_shared_acl_head {
|
|
struct list_head list;
|
|
atomic_t users;
|
|
} __packed;
|
|
|
|
struct tomoyo_policy_namespace;
|
|
|
|
/* 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 {
|
|
const struct tomoyo_path_info *filename;
|
|
/* For using wildcards at tomoyo_find_next_domain(). */
|
|
const struct tomoyo_path_info *matched_path;
|
|
/* One of values in "enum tomoyo_path_acl_index". */
|
|
u8 operation;
|
|
} path;
|
|
struct {
|
|
const struct tomoyo_path_info *filename1;
|
|
const struct tomoyo_path_info *filename2;
|
|
/* One of values in "enum tomoyo_path2_acl_index". */
|
|
u8 operation;
|
|
} path2;
|
|
struct {
|
|
const struct tomoyo_path_info *filename;
|
|
unsigned int mode;
|
|
unsigned int major;
|
|
unsigned int minor;
|
|
/* One of values in "enum tomoyo_mkdev_acl_index". */
|
|
u8 operation;
|
|
} mkdev;
|
|
struct {
|
|
const struct tomoyo_path_info *filename;
|
|
unsigned long number;
|
|
/*
|
|
* One of values in
|
|
* "enum tomoyo_path_number_acl_index".
|
|
*/
|
|
u8 operation;
|
|
} path_number;
|
|
struct {
|
|
const struct tomoyo_path_info *name;
|
|
} environ;
|
|
struct {
|
|
const __be32 *address;
|
|
u16 port;
|
|
/* One of values smaller than TOMOYO_SOCK_MAX. */
|
|
u8 protocol;
|
|
/* One of values in "enum tomoyo_network_acl_index". */
|
|
u8 operation;
|
|
bool is_ipv6;
|
|
} inet_network;
|
|
struct {
|
|
const struct tomoyo_path_info *address;
|
|
/* One of values smaller than TOMOYO_SOCK_MAX. */
|
|
u8 protocol;
|
|
/* One of values in "enum tomoyo_network_acl_index". */
|
|
u8 operation;
|
|
} unix_network;
|
|
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;
|
|
struct {
|
|
const struct tomoyo_path_info *domainname;
|
|
} task;
|
|
} param;
|
|
struct tomoyo_acl_info *matched_acl;
|
|
u8 param_type;
|
|
bool granted;
|
|
u8 retry;
|
|
u8 profile;
|
|
u8 mode; /* One of tomoyo_mode_index . */
|
|
u8 type;
|
|
};
|
|
|
|
/* Structure for holding a token. */
|
|
struct tomoyo_path_info {
|
|
const char *name;
|
|
u32 hash; /* = full_name_hash(name, strlen(name)) */
|
|
u16 const_len; /* = tomoyo_const_part_length(name) */
|
|
bool is_dir; /* = tomoyo_strendswith(name, "/") */
|
|
bool is_patterned; /* = tomoyo_path_contains_pattern(name) */
|
|
};
|
|
|
|
/* Structure for holding string data. */
|
|
struct tomoyo_name {
|
|
struct tomoyo_shared_acl_head head;
|
|
struct tomoyo_path_info entry;
|
|
};
|
|
|
|
/* Structure for holding a word. */
|
|
struct tomoyo_name_union {
|
|
/* Either @filename or @group is NULL. */
|
|
const struct tomoyo_path_info *filename;
|
|
struct tomoyo_group *group;
|
|
};
|
|
|
|
/* Structure for holding a number. */
|
|
struct tomoyo_number_union {
|
|
unsigned long values[2];
|
|
struct tomoyo_group *group; /* Maybe NULL. */
|
|
/* One of values in "enum tomoyo_value_type". */
|
|
u8 value_type[2];
|
|
};
|
|
|
|
/* Structure for holding an IP address. */
|
|
struct tomoyo_ipaddr_union {
|
|
struct in6_addr ip[2]; /* Big endian. */
|
|
struct tomoyo_group *group; /* Pointer to address group. */
|
|
bool is_ipv6; /* Valid only if @group == NULL. */
|
|
};
|
|
|
|
/* Structure for "path_group"/"number_group"/"address_group" directive. */
|
|
struct tomoyo_group {
|
|
struct tomoyo_shared_acl_head head;
|
|
const struct tomoyo_path_info *group_name;
|
|
struct list_head member_list;
|
|
};
|
|
|
|
/* Structure for "path_group" directive. */
|
|
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;
|
|
};
|
|
|
|
/* Structure for "address_group" directive. */
|
|
struct tomoyo_address_group {
|
|
struct tomoyo_acl_head head;
|
|
/* Structure for holding an IP address. */
|
|
struct tomoyo_ipaddr_union address;
|
|
};
|
|
|
|
/* Subset of "struct stat". Used by conditional ACL and audit logs. */
|
|
struct tomoyo_mini_stat {
|
|
kuid_t uid;
|
|
kgid_t gid;
|
|
ino_t ino;
|
|
umode_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;
|
|
const struct tomoyo_path_info *transition;
|
|
/* 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". */
|
|
u8 grant_log; /* One of values in "enum tomoyo_grant_log". */
|
|
const struct tomoyo_path_info *transit; /* Maybe NULL. */
|
|
/*
|
|
* 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. */
|
|
s8 is_deleted; /* true or false or TOMOYO_GC_IN_PROGRESS */
|
|
u8 type; /* One of values in "enum tomoyo_acl_entry_type_index". */
|
|
} __packed;
|
|
|
|
/* Structure for domain information. */
|
|
struct tomoyo_domain_info {
|
|
struct list_head list;
|
|
struct list_head acl_info_list;
|
|
/* Name of this domain. Never NULL. */
|
|
const struct tomoyo_path_info *domainname;
|
|
/* Namespace for this domain. Never NULL. */
|
|
struct tomoyo_policy_namespace *ns;
|
|
u8 profile; /* Profile number to use. */
|
|
u8 group; /* Group number to use. */
|
|
bool is_deleted; /* Delete flag. */
|
|
bool flags[TOMOYO_MAX_DOMAIN_INFO_FLAGS];
|
|
atomic_t users; /* Number of referring credentials. */
|
|
};
|
|
|
|
/*
|
|
* Structure for "task manual_domain_transition" directive.
|
|
*/
|
|
struct tomoyo_task_acl {
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MANUAL_TASK_ACL */
|
|
/* Pointer to domainname. */
|
|
const struct tomoyo_path_info *domainname;
|
|
};
|
|
|
|
/*
|
|
* 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; /* Bitmask of values in "enum tomoyo_path_acl_index". */
|
|
struct tomoyo_name_union name;
|
|
};
|
|
|
|
/*
|
|
* 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;
|
|
};
|
|
|
|
/* Structure for "file mkblock" and "file mkchar" directive. */
|
|
struct tomoyo_mkdev_acl {
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_MKDEV_ACL */
|
|
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;
|
|
struct tomoyo_number_union minor;
|
|
};
|
|
|
|
/*
|
|
* 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; /* Bitmask of values in "enum tomoyo_path2_acl_index". */
|
|
struct tomoyo_name_union name1;
|
|
struct tomoyo_name_union name2;
|
|
};
|
|
|
|
/* 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;
|
|
struct tomoyo_name_union dir_name;
|
|
struct tomoyo_name_union fs_type;
|
|
struct tomoyo_number_union flags;
|
|
};
|
|
|
|
/* Structure for "misc env" directive in domain policy. */
|
|
struct tomoyo_env_acl {
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_ENV_ACL */
|
|
const struct tomoyo_path_info *env; /* environment variable */
|
|
};
|
|
|
|
/* Structure for "network inet" directive. */
|
|
struct tomoyo_inet_acl {
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_INET_ACL */
|
|
u8 protocol;
|
|
u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
|
|
struct tomoyo_ipaddr_union address;
|
|
struct tomoyo_number_union port;
|
|
};
|
|
|
|
/* Structure for "network unix" directive. */
|
|
struct tomoyo_unix_acl {
|
|
struct tomoyo_acl_info head; /* type = TOMOYO_TYPE_UNIX_ACL */
|
|
u8 protocol;
|
|
u8 perm; /* Bitmask of values in "enum tomoyo_network_acl_index" */
|
|
struct tomoyo_name_union name;
|
|
};
|
|
|
|
/* Structure for holding a line from /sys/kernel/security/tomoyo/ interface. */
|
|
struct tomoyo_acl_param {
|
|
char *data;
|
|
struct list_head *list;
|
|
struct tomoyo_policy_namespace *ns;
|
|
bool is_delete;
|
|
};
|
|
|
|
#define TOMOYO_MAX_IO_READ_QUEUE 64
|
|
|
|
/*
|
|
* Structure for reading/writing policy via /sys/kernel/security/tomoyo
|
|
* interfaces.
|
|
*/
|
|
struct tomoyo_io_buffer {
|
|
void (*read) (struct tomoyo_io_buffer *);
|
|
int (*write) (struct tomoyo_io_buffer *);
|
|
unsigned int (*poll) (struct file *file, poll_table *wait);
|
|
/* Exclusive lock for this structure. */
|
|
struct mutex io_sem;
|
|
char __user *read_user_buf;
|
|
size_t read_user_buf_avail;
|
|
struct {
|
|
struct list_head *ns;
|
|
struct list_head *domain;
|
|
struct list_head *group;
|
|
struct list_head *acl;
|
|
size_t avail;
|
|
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 {
|
|
struct tomoyo_policy_namespace *ns;
|
|
/* The position currently writing to. */
|
|
struct tomoyo_domain_info *domain;
|
|
/* Bytes available for writing. */
|
|
size_t avail;
|
|
bool is_delete;
|
|
} w;
|
|
/* Buffer for reading. */
|
|
char *read_buf;
|
|
/* Size of read buffer. */
|
|
size_t readbuf_size;
|
|
/* Buffer for writing. */
|
|
char *write_buf;
|
|
/* Size of write buffer. */
|
|
size_t writebuf_size;
|
|
/* Type of this interface. */
|
|
enum tomoyo_securityfs_interface_index type;
|
|
/* Users counter protected by tomoyo_io_buffer_list_lock. */
|
|
u8 users;
|
|
/* List for telling GC not to kfree() elements. */
|
|
struct list_head list;
|
|
};
|
|
|
|
/*
|
|
* Structure for "initialize_domain"/"no_initialize_domain"/"keep_domain"/
|
|
* "no_keep_domain" keyword.
|
|
*/
|
|
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 */
|
|
};
|
|
|
|
/* 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;
|
|
};
|
|
|
|
/* Structure for policy manager. */
|
|
struct tomoyo_manager {
|
|
struct tomoyo_acl_head head;
|
|
/* A path to program or a domainname. */
|
|
const struct tomoyo_path_info *manager;
|
|
};
|
|
|
|
struct tomoyo_preference {
|
|
unsigned int learning_max_entry;
|
|
bool enforcing_verbose;
|
|
bool learning_verbose;
|
|
bool permissive_verbose;
|
|
};
|
|
|
|
/* Structure for /sys/kernel/security/tomnoyo/profile interface. */
|
|
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];
|
|
unsigned int pref[TOMOYO_MAX_PREF];
|
|
};
|
|
|
|
/* Structure for representing YYYY/MM/DD hh/mm/ss. */
|
|
struct tomoyo_time {
|
|
u16 year;
|
|
u8 month;
|
|
u8 day;
|
|
u8 hour;
|
|
u8 min;
|
|
u8 sec;
|
|
};
|
|
|
|
/* Structure for policy namespace. */
|
|
struct tomoyo_policy_namespace {
|
|
/* Profile table. Memory is allocated as needed. */
|
|
struct tomoyo_profile *profile_ptr[TOMOYO_MAX_PROFILES];
|
|
/* List of "struct tomoyo_group". */
|
|
struct list_head group_list[TOMOYO_MAX_GROUP];
|
|
/* List of policy. */
|
|
struct list_head policy_list[TOMOYO_MAX_POLICY];
|
|
/* The global ACL referred by "use_group" keyword. */
|
|
struct list_head acl_group[TOMOYO_MAX_ACL_GROUPS];
|
|
/* List for connecting to tomoyo_namespace_list list. */
|
|
struct list_head namespace_list;
|
|
/* Profile version. Currently only 20110903 is defined. */
|
|
unsigned int profile_version;
|
|
/* Name of this namespace (e.g. "<kernel>", "</usr/sbin/httpd>" ). */
|
|
const char *name;
|
|
};
|
|
|
|
/********** Function prototypes. **********/
|
|
|
|
bool tomoyo_address_matches_group(const bool is_ipv6, const __be32 *address,
|
|
const struct tomoyo_group *group);
|
|
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,
|
|
const struct tomoyo_group *group);
|
|
bool tomoyo_parse_ipaddr_union(struct tomoyo_acl_param *param,
|
|
struct tomoyo_ipaddr_union *ptr);
|
|
bool tomoyo_parse_name_union(struct tomoyo_acl_param *param,
|
|
struct tomoyo_name_union *ptr);
|
|
bool tomoyo_parse_number_union(struct tomoyo_acl_param *param,
|
|
struct tomoyo_number_union *ptr);
|
|
bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
|
|
const struct tomoyo_path_info *pattern);
|
|
bool tomoyo_permstr(const char *string, const char *keyword);
|
|
bool tomoyo_str_starts(char **src, const char *find);
|
|
char *tomoyo_encode(const char *str);
|
|
char *tomoyo_encode2(const char *str, int str_len);
|
|
char *tomoyo_init_log(struct tomoyo_request_info *r, int len, const char *fmt,
|
|
va_list args);
|
|
char *tomoyo_read_token(struct tomoyo_acl_param *param);
|
|
char *tomoyo_realpath_from_path(const struct path *path);
|
|
char *tomoyo_realpath_nofollow(const char *pathname);
|
|
const char *tomoyo_get_exe(void);
|
|
const char *tomoyo_yesno(const unsigned int value);
|
|
const struct tomoyo_path_info *tomoyo_compare_name_union
|
|
(const struct tomoyo_path_info *name, const struct tomoyo_name_union *ptr);
|
|
const struct tomoyo_path_info *tomoyo_get_domainname
|
|
(struct tomoyo_acl_param *param);
|
|
const struct tomoyo_path_info *tomoyo_get_name(const char *name);
|
|
const struct tomoyo_path_info *tomoyo_path_matches_group
|
|
(const struct tomoyo_path_info *pathname, const struct tomoyo_group *group);
|
|
int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
|
|
const struct path *path, const int flag);
|
|
void tomoyo_close_control(struct tomoyo_io_buffer *head);
|
|
int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env);
|
|
int tomoyo_execute_permission(struct tomoyo_request_info *r,
|
|
const struct tomoyo_path_info *filename);
|
|
int tomoyo_find_next_domain(struct linux_binprm *bprm);
|
|
int tomoyo_get_mode(const struct tomoyo_policy_namespace *ns, const u8 profile,
|
|
const u8 index);
|
|
int tomoyo_init_request_info(struct tomoyo_request_info *r,
|
|
struct tomoyo_domain_info *domain,
|
|
const u8 index);
|
|
int tomoyo_mkdev_perm(const u8 operation, const struct path *path,
|
|
const unsigned int mode, unsigned int dev);
|
|
int tomoyo_mount_permission(const char *dev_name, const struct path *path,
|
|
const char *type, unsigned long flags,
|
|
void *data_page);
|
|
int tomoyo_open_control(const u8 type, struct file *file);
|
|
int tomoyo_path2_perm(const u8 operation, const struct path *path1,
|
|
const struct path *path2);
|
|
int tomoyo_path_number_perm(const u8 operation, const struct path *path,
|
|
unsigned long number);
|
|
int tomoyo_path_perm(const u8 operation, const struct path *path,
|
|
const char *target);
|
|
unsigned int tomoyo_poll_control(struct file *file, poll_table *wait);
|
|
unsigned int tomoyo_poll_log(struct file *file, poll_table *wait);
|
|
int tomoyo_socket_bind_permission(struct socket *sock, struct sockaddr *addr,
|
|
int addr_len);
|
|
int tomoyo_socket_connect_permission(struct socket *sock,
|
|
struct sockaddr *addr, int addr_len);
|
|
int tomoyo_socket_listen_permission(struct socket *sock);
|
|
int tomoyo_socket_sendmsg_permission(struct socket *sock, struct msghdr *msg,
|
|
int size);
|
|
int tomoyo_supervisor(struct tomoyo_request_info *r, const char *fmt, ...)
|
|
__printf(2, 3);
|
|
int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size,
|
|
struct tomoyo_acl_param *param,
|
|
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,
|
|
struct tomoyo_acl_param *param,
|
|
bool (*check_duplicate)
|
|
(const struct tomoyo_acl_head *,
|
|
const struct tomoyo_acl_head *));
|
|
int tomoyo_write_aggregator(struct tomoyo_acl_param *param);
|
|
int tomoyo_write_file(struct tomoyo_acl_param *param);
|
|
int tomoyo_write_group(struct tomoyo_acl_param *param, const u8 type);
|
|
int tomoyo_write_misc(struct tomoyo_acl_param *param);
|
|
int tomoyo_write_inet_network(struct tomoyo_acl_param *param);
|
|
int tomoyo_write_transition_control(struct tomoyo_acl_param *param,
|
|
const u8 type);
|
|
int tomoyo_write_unix_network(struct tomoyo_acl_param *param);
|
|
ssize_t tomoyo_read_control(struct tomoyo_io_buffer *head, char __user *buffer,
|
|
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);
|
|
struct tomoyo_group *tomoyo_get_group(struct tomoyo_acl_param *param,
|
|
const u8 idx);
|
|
struct tomoyo_policy_namespace *tomoyo_assign_namespace
|
|
(const char *domainname);
|
|
struct tomoyo_profile *tomoyo_profile(const struct tomoyo_policy_namespace *ns,
|
|
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);
|
|
void tomoyo_check_acl(struct tomoyo_request_info *r,
|
|
bool (*check_entry) (struct tomoyo_request_info *,
|
|
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_load_policy(const char *filename);
|
|
void tomoyo_normalize_line(unsigned char *buffer);
|
|
void tomoyo_notify_gc(struct tomoyo_io_buffer *head, const bool is_register);
|
|
void tomoyo_print_ip(char *buf, const unsigned int size,
|
|
const struct tomoyo_ipaddr_union *ptr);
|
|
void tomoyo_print_ulong(char *buffer, const int buffer_len,
|
|
const unsigned long value, const u8 type);
|
|
void tomoyo_put_name_union(struct tomoyo_name_union *ptr);
|
|
void tomoyo_put_number_union(struct tomoyo_number_union *ptr);
|
|
void tomoyo_read_log(struct tomoyo_io_buffer *head);
|
|
void tomoyo_update_stat(const u8 index);
|
|
void tomoyo_warn_oom(const char *function);
|
|
void tomoyo_write_log(struct tomoyo_request_info *r, const char *fmt, ...)
|
|
__printf(2, 3);
|
|
void tomoyo_write_log2(struct tomoyo_request_info *r, int len, const char *fmt,
|
|
va_list args);
|
|
|
|
/********** 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 char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE];
|
|
extern const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION];
|
|
extern const char * const tomoyo_proto_keyword[TOMOYO_SOCK_MAX];
|
|
extern const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION];
|
|
extern const u8 tomoyo_index2category[TOMOYO_MAX_MAC_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;
|
|
extern struct mutex tomoyo_policy_lock;
|
|
extern struct srcu_struct tomoyo_ss;
|
|
extern struct tomoyo_domain_info tomoyo_kernel_domain;
|
|
extern struct tomoyo_policy_namespace tomoyo_kernel_namespace;
|
|
extern unsigned int tomoyo_memory_quota[TOMOYO_MAX_MEMORY_STAT];
|
|
extern unsigned int tomoyo_memory_used[TOMOYO_MAX_MEMORY_STAT];
|
|
|
|
/********** Inlined functions. **********/
|
|
|
|
/**
|
|
* tomoyo_read_lock - Take lock for protecting policy.
|
|
*
|
|
* Returns index number for tomoyo_read_unlock().
|
|
*/
|
|
static inline int tomoyo_read_lock(void)
|
|
{
|
|
return srcu_read_lock(&tomoyo_ss);
|
|
}
|
|
|
|
/**
|
|
* tomoyo_read_unlock - Release lock for protecting policy.
|
|
*
|
|
* @idx: Index number returned by tomoyo_read_lock().
|
|
*
|
|
* Returns nothing.
|
|
*/
|
|
static inline void tomoyo_read_unlock(int idx)
|
|
{
|
|
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(rcu_dereference(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.
|
|
*
|
|
* @a: Pointer to "struct tomoyo_path_info".
|
|
* @b: Pointer to "struct tomoyo_path_info".
|
|
*
|
|
* Returns true if @a == @b, false otherwise.
|
|
*/
|
|
static inline bool tomoyo_pathcmp(const struct tomoyo_path_info *a,
|
|
const struct tomoyo_path_info *b)
|
|
{
|
|
return a->hash != b->hash || strcmp(a->name, b->name);
|
|
}
|
|
|
|
/**
|
|
* tomoyo_put_name - Drop reference on "struct tomoyo_name".
|
|
*
|
|
* @name: Pointer to "struct tomoyo_path_info". Maybe NULL.
|
|
*
|
|
* Returns nothing.
|
|
*/
|
|
static inline void tomoyo_put_name(const struct tomoyo_path_info *name)
|
|
{
|
|
if (name) {
|
|
struct tomoyo_name *ptr =
|
|
container_of(name, typeof(*ptr), entry);
|
|
atomic_dec(&ptr->head.users);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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".
|
|
*
|
|
* @group: Pointer to "struct tomoyo_group". Maybe NULL.
|
|
*
|
|
* Returns nothing.
|
|
*/
|
|
static inline void tomoyo_put_group(struct tomoyo_group *group)
|
|
{
|
|
if (group)
|
|
atomic_dec(&group->head.users);
|
|
}
|
|
|
|
/**
|
|
* tomoyo_domain - Get "struct tomoyo_domain_info" for current thread.
|
|
*
|
|
* Returns pointer to "struct tomoyo_domain_info" for current thread.
|
|
*/
|
|
static inline struct tomoyo_domain_info *tomoyo_domain(void)
|
|
{
|
|
return current_cred()->security;
|
|
}
|
|
|
|
/**
|
|
* tomoyo_real_domain - Get "struct tomoyo_domain_info" for specified thread.
|
|
*
|
|
* @task: Pointer to "struct task_struct".
|
|
*
|
|
* Returns pointer to "struct tomoyo_security" for specified thread.
|
|
*/
|
|
static inline struct tomoyo_domain_info *tomoyo_real_domain(struct task_struct
|
|
*task)
|
|
{
|
|
return task_cred_xxx(task, security);
|
|
}
|
|
|
|
/**
|
|
* tomoyo_same_name_union - Check for duplicated "struct tomoyo_name_union" entry.
|
|
*
|
|
* @a: Pointer to "struct tomoyo_name_union".
|
|
* @b: Pointer to "struct tomoyo_name_union".
|
|
*
|
|
* Returns true if @a == @b, false otherwise.
|
|
*/
|
|
static inline bool tomoyo_same_name_union
|
|
(const struct tomoyo_name_union *a, const struct tomoyo_name_union *b)
|
|
{
|
|
return a->filename == b->filename && a->group == b->group;
|
|
}
|
|
|
|
/**
|
|
* tomoyo_same_number_union - Check for duplicated "struct tomoyo_number_union" entry.
|
|
*
|
|
* @a: Pointer to "struct tomoyo_number_union".
|
|
* @b: Pointer to "struct tomoyo_number_union".
|
|
*
|
|
* Returns true if @a == @b, false otherwise.
|
|
*/
|
|
static inline bool tomoyo_same_number_union
|
|
(const struct tomoyo_number_union *a, const struct tomoyo_number_union *b)
|
|
{
|
|
return a->values[0] == b->values[0] && a->values[1] == b->values[1] &&
|
|
a->group == b->group && a->value_type[0] == b->value_type[0] &&
|
|
a->value_type[1] == b->value_type[1];
|
|
}
|
|
|
|
/**
|
|
* tomoyo_same_ipaddr_union - Check for duplicated "struct tomoyo_ipaddr_union" entry.
|
|
*
|
|
* @a: Pointer to "struct tomoyo_ipaddr_union".
|
|
* @b: Pointer to "struct tomoyo_ipaddr_union".
|
|
*
|
|
* Returns true if @a == @b, false otherwise.
|
|
*/
|
|
static inline bool tomoyo_same_ipaddr_union
|
|
(const struct tomoyo_ipaddr_union *a, const struct tomoyo_ipaddr_union *b)
|
|
{
|
|
return !memcmp(a->ip, b->ip, sizeof(a->ip)) && a->group == b->group &&
|
|
a->is_ipv6 == b->is_ipv6;
|
|
}
|
|
|
|
/**
|
|
* tomoyo_current_namespace - Get "struct tomoyo_policy_namespace" for current thread.
|
|
*
|
|
* Returns pointer to "struct tomoyo_policy_namespace" for current thread.
|
|
*/
|
|
static inline struct tomoyo_policy_namespace *tomoyo_current_namespace(void)
|
|
{
|
|
return tomoyo_domain()->ns;
|
|
}
|
|
|
|
#if defined(CONFIG_SLOB)
|
|
|
|
/**
|
|
* tomoyo_round2 - Round up to power of 2 for calculating memory usage.
|
|
*
|
|
* @size: Size to be rounded up.
|
|
*
|
|
* Returns @size.
|
|
*
|
|
* Since SLOB does not round up, this function simply returns @size.
|
|
*/
|
|
static inline int tomoyo_round2(size_t size)
|
|
{
|
|
return size;
|
|
}
|
|
|
|
#else
|
|
|
|
/**
|
|
* tomoyo_round2 - Round up to power of 2 for calculating memory usage.
|
|
*
|
|
* @size: Size to be rounded up.
|
|
*
|
|
* Returns rounded size.
|
|
*
|
|
* Strictly speaking, SLAB may be able to allocate (e.g.) 96 bytes instead of
|
|
* (e.g.) 128 bytes.
|
|
*/
|
|
static inline int tomoyo_round2(size_t size)
|
|
{
|
|
#if PAGE_SIZE == 4096
|
|
size_t bsize = 32;
|
|
#else
|
|
size_t bsize = 64;
|
|
#endif
|
|
if (!size)
|
|
return 0;
|
|
while (size > bsize)
|
|
bsize <<= 1;
|
|
return bsize;
|
|
}
|
|
|
|
#endif
|
|
|
|
/**
|
|
* list_for_each_cookie - iterate over a list with cookie.
|
|
* @pos: the &struct list_head to use as a loop cursor.
|
|
* @head: the head for your list.
|
|
*/
|
|
#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) */
|