/*
- * Copyright (c) 2007-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
struct attrlist;
struct auditinfo;
struct bpf_d;
+struct cs_blob;
struct devnode;
+struct exception_action;
struct fileglob;
struct ifnet;
struct inpcb;
@param vnodelabel Label corresponding to vp
@param scriptvnodelabel Script vnode label
@param execlabel Userspace provided execution label
- @param proc Object process
+ @param p Object process
@param macpolicyattr MAC policy-specific spawn attribute data
@param macpolicyattrlen Length of policy-specific spawn attribute data
@see mac_execve
struct vnode *vp,
struct label *vnodelabel
);
+/**
+ @brief Access control for sending an exception to an exception action
+ @param crashlabel The crashing process's label
+ @param action Exception action
+ @param exclabel Policy label for exception action
+
+ Determine whether the the exception message caused by the victim
+ process can be sent to the exception action.
+
+ @return Return 0 if the message can be sent, otherwise an
+ appropriate value for errno should be returned.
+*/
+typedef int mpo_exc_action_check_exception_send_t(
+ struct label *crashlabel,
+ struct exception_action *action,
+ struct label *exclabel
+);
+/**
+ @brief Create an exception action label
+ @param action Exception action to label
+ @param exclabel Policy label to be filled in for exception action
+
+ Set the label on an exception action.
+*/
+typedef void mpo_exc_action_label_associate_t(
+ struct exception_action *action,
+ struct label *exclabel
+);
+/**
+ @brief Copy an exception action label
+ @param src Source exception action label
+ @param dest Destination exception action label
+
+ Copy the label information from src to dest.
+ Exception actions are often inherited, e.g. from parent to child.
+ In that case, the labels are copied instead of created fresh.
+*/
+typedef void mpo_exc_action_label_copy_t(
+ struct label *src,
+ struct label *dest
+);
+/**
+ @brief Destroy exception action label
+ @param label The label to be destroyed
+
+ Destroy the label on an exception action. In this entry point, a
+ policy module should free any internal storage associated with
+ label so that it may be destroyed.
+*/
+typedef void mpo_exc_action_label_destroy_t(
+ struct label *label
+);
+/**
+ @brief Initialize exception action label
+ @param label New label to initialize
+
+ Initialize a label for an exception action.
+*/
+typedef int mpo_exc_action_label_init_t(
+ struct label *label
+);
+/**
+ @brief Update the label on an exception action
+ @param p Process to update the label from
+ @param exclabel Policy label to be updated for exception action
+
+ Update the credentials of an exception action with the given task.
+*/
+typedef void mpo_exc_action_label_update_t(
+ struct proc *p,
+ struct label *exclabel
+);
/**
@brief Access control for changing the offset of a file descriptor
@param cred Subject credential
int op,
struct flock *fl
);
+/**
+ @brief Check with library validation if a macho slice is allowed to be combined into a proc.
+ @param p Subject process
+ @param fg Fileglob structure
+ @param slice_offset offset of the code slice
+ @param error_message error message returned to user-space in case of error (userspace pointer)
+ @param error_message_size error message size
+
+ Its a little odd that the MAC/kext writes into userspace since this
+ implies there is only one MAC module that implements this, however
+ the alterantive is to allocate memory in xnu, on the hope that
+ the MAC module will use it, or allocated in the MAC module and then
+ free it in xnu. Either of these are very appeling, so lets go with
+ the slightly more hacky way.
+
+ @return Return 0 if access is granted, otherwise an appropriate value for
+ errno should be returned.
+*/
+typedef int mpo_file_check_library_validation_t(
+ struct proc *p,
+ struct fileglob *fg,
+ off_t slice_offset,
+ user_long_t error_message,
+ size_t error_message_size
+);
/**
@brief Access control check for mapping a file
@param cred Subject credential
/**
@brief Device hardware access control
@param devtype Type of device connected
- @param properties XML-formatted property list
- @param proplen Length of the property list
This is the MAC Framework device access control, which is called by the I/O
Kit when a new device is connected to the system to determine whether that
/**
@brief Access control check for opening an I/O Kit device
@param cred Subject credential
- @param device_path Device path
@param user_client User client instance
@param user_client_type User client type
@param cred Subject credential
@param mp The mount point
@param label Label associated with the mount point
- @param com Filesystem-dependent request code; see fsctl(2)
+ @param cmd Filesystem-dependent request code; see fsctl(2)
Determine whether the subject identified by the credential can perform
the volume operation indicated by com.
@return Return 0 if access is granted, otherwise an appropriate value for
errno should be returned.
+
+ @note Policies may change the contents of vfa to alter the list of
+ file system attributes returned.
*/
typedef int mpo_mount_check_getattr_t(
struct componentname *cnp,
const char *vfc_name
);
+/**
+ @brief Access control check for fs_snapshot_create
+ @param cred Subject credential
+ @mp Filesystem mount point to create snapshot of
+ @name Name of snapshot to create
+
+ Determine whether the subject identified by the credential can
+ create a snapshot of the filesystem at the given mount point.
+
+ @return Return 0 if access is granted, otherwise an appropriate value
+ for errno should be returned.
+*/
+typedef int mpo_mount_check_snapshot_create_t(
+ kauth_cred_t cred,
+ struct mount *mp,
+ const char *name
+);
+/**
+ @brief Access control check for fs_snapshot_delete
+ @param cred Subject credential
+ @mp Filesystem mount point to delete snapshot of
+ @name Name of snapshot to delete
+
+ Determine whether the subject identified by the credential can
+ delete the named snapshot from the filesystem at the given
+ mount point.
+
+ @return Return 0 if access is granted, otherwise an appropriate value
+ for errno should be returned.
+*/
+typedef int mpo_mount_check_snapshot_delete_t(
+ kauth_cred_t cred,
+ struct mount *mp,
+ const char *name
+);
+/**
+ @brief Access control check for fs_snapshot_revert
+ @param cred Subject credential
+ @mp Filesystem mount point to revert to snapshot
+ @name Name of snapshot to revert to
+
+ Determine whether the subject identified by the credential can
+ revert the filesystem at the given mount point to the named snapshot.
+
+ @return Return 0 if access is granted, otherwise an appropriate value
+ for errno should be returned.
+*/
+typedef int mpo_mount_check_snapshot_revert_t(
+ kauth_cred_t cred,
+ struct mount *mp,
+ const char *name
+);
/**
@brief Access control check remounting a filesystem
@param cred Subject credential
@brief Create a pipe label
@param cred Subject credential
@param cpipe object to be labeled
- @param label Label for the pipe object
+ @param pipelabel Label for the pipe object
Create a label for the pipe object being created by the supplied
user credential. This call is made when the pipe is being created
/**
@brief Access control check for setting host exception ports.
@param cred Subject credential
- @param exceptions Exception port to set
+ @param exception Exception port to set
@return Return 0 if access is granted, otherwise an appropriate value for
errno should be returned.
/**
@brief Access control check for socket accept
@param cred Subject credential
- @param socket Object socket
+ @param so Object socket
@param socklabel Policy label for socket
Determine whether the subject identified by the credential can accept()
/**
@brief Access control check for socket receive
@param cred Subject credential
- @param socket Object socket
+ @param sock Object socket
@param socklabel Policy label for socket
- @param addr Name of the remote socket
+ @param saddr Name of the remote socket
Determine whether the subject identified by the credential can
receive data from the remote host specified by addr.
/**
@brief Create a System V message label
@param cred Subject credential
- @param msqkptr The message queue the message will be placed in
+ @param msqptr The message queue the message will be placed in
@param msqlabel The label of the message queue
@param msgptr The message
@param msglabel The label of the message
@param cred Subject credential
@param msgptr The message
@param msglabel The message's label
- @param msqkptr The message queue
+ @param msqptr The message queue
@param msqlabel The message queue's label
Determine whether the subject identified by the credential can add the
/**
@brief Create a System V message queue label
@param cred Subject credential
- @param msqkptr The message queue
+ @param msqptr The message queue
@param msqlabel The label of the message queue
*/
/**
@brief Access control check for getting a process's task name
@param cred Subject credential
- @param proc Object process
+ @param p Object process
Determine whether the subject identified by the credential can get
the passed process's task name port.
/**
@brief Access control check for getting a process's task port
@param cred Subject credential
- @param proc Object process
+ @param p Object process
Determine whether the subject identified by the credential can get
the passed process's task control port.
/**
@brief Access control check for exposing a process's task port
@param cred Subject credential
- @param proc Object process
+ @param p Object process
Determine whether the subject identified by the credential can expose
the passed process's task control port.
/**
@brief Check whether task's IPC may inherit across process exec
- @param proc current process instance
+ @param p current process instance
@param cur_vp vnode pointer to current instance
@param cur_offset offset of binary of currently executing image
@param img_vp vnode pointer to to be exec'ed image
/**
@brief Privilege check for a process to run invalid
- @param proc Object process
+ @param p Object process
Determine whether the process may execute even though the system determined
that it is untrusted (eg unidentified / modified code).
struct label *dlabel,
struct componentname *cnp
);
+/**
+ @brief Access control check for creating clone
+ @param cred Subject credential
+ @param dvp Vnode of directory to create the clone in
+ @param dlabel Policy label associated with dvp
+ @param vp Vnode of the file to clone from
+ @param label Policy label associated with vp
+ @param cnp Component name for the clone being created
+
+ Determine whether the subject identified by the credential should be
+ allowed to create a clone of the vnode vp with the name specified by cnp.
+
+ @return Return 0 if access is granted, otherwise an appropriate value for
+ errno should be returned.
+*/
+typedef int mpo_vnode_check_clone_t(
+ kauth_cred_t cred,
+ struct vnode *dvp,
+ struct label *dlabel,
+ struct vnode *vp,
+ struct label *label,
+ struct componentname *cnp
+);
/**
@brief Access control check for creating vnode
@param cred Subject credential
@param vp Object vnode to execute
@param scriptvp Script being executed by interpreter, if any.
@param vnodelabel Label corresponding to vp
- @param scriptvnodelabel Script vnode label
+ @param scriptlabel Script vnode label
@param execlabel Userspace provided execution label
@param cnp Component name for file being executed
@param macpolicyattr MAC policy-specific spawn attribute data.
struct label *label
);
/**
- @brief Access control check after determining the code directory hash
- */
-typedef int mpo_vnode_check_signature_t(struct vnode *vp, struct label *label,
- off_t macho_offset, unsigned char *sha1,
- const void *signature, int size,
- int flags, int *is_platform_binary);
+ @brief Access control check for retrieving file attributes
+ @param active_cred Subject credential
+ @param file_cred Credential associated with the struct fileproc
+ @param vp Object vnode
+ @param vlabel Policy label for vp
+ @param va Vnode attributes to retrieve
+
+ Determine whether the subject identified by the credential can
+ get information about the passed vnode. The active_cred hold
+ the credentials of the subject performing the operation, and
+ file_cred holds the credentials of the subject that originally
+ opened the file. This check happens during stat(), lstat(),
+ fstat(), and getattrlist() syscalls. See <sys/vnode.h> for
+ definitions of the attributes.
+ @return Return 0 if access is granted, otherwise an appropriate value for
+ errno should be returned.
+
+ @note Policies may change the contents of va to alter the list of
+ file attributes returned.
+*/
+typedef int mpo_vnode_check_getattr_t(
+ kauth_cred_t active_cred,
+ kauth_cred_t file_cred, /* NULLOK */
+ struct vnode *vp,
+ struct label *vlabel,
+ struct vnode_attr *va
+);
/**
@brief Access control check for retrieving file attributes
@param cred Subject credential
@param cred Subject credential
@param vp Object vnode
@param label Policy label for vp
- @param com Device-dependent request code; see ioctl(2)
+ @param cmd Device-dependent request code; see ioctl(2)
Determine whether the subject identified by the credential can perform
the ioctl operation indicated by com.
);
/**
@brief Access control check for vnode kqfilter
- @param cred Subject credential
+ @param active_cred Subject credential
@param kn Object knote
@param vp Object vnode
@param label Policy label for vp
struct label *label,
int which
);
+/**
+ @brief Access control check for setting ACL
+ @param cred Subject credential
+ @param vp Object node
+ @param label Policy label for vp
+ @param acl ACL structure pointer
+
+ Determine whether the subject identified by the credential can set an ACL
+ on the specified vnode. The ACL pointer will be NULL when removing an ACL.
+
+ @return Return 0 if access is granted, otherwise an appropriate value for
+ errno should be returned. Suggested failure: EACCES for label mismatch or
+ EPERM for lack of privilege.
+*/
+typedef int mpo_vnode_check_setacl_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ struct kauth_acl *acl
+);
/**
@brief Access control check for setting file attributes
@param cred Subject credential
struct timespec atime,
struct timespec mtime
);
+/**
+ @brief Access control check after determining the code directory hash
+ @param vp vnode vnode to combine into proc
+ @param label label associated with the vnode
+ @param cs_blob the code signature to check
+ @param cs_flags update code signing flags if needed
+ @param flags operational flag to mpo_vnode_check_signature
+ @param fatal_failure_desc description of fatal failure
+ @param fatal_failure_desc_len failure description len, failure is fatal if non-0
+
+ @return Return 0 if access is granted, otherwise an appropriate value for
+ errno should be returned.
+ */
+typedef int mpo_vnode_check_signature_t(
+ struct vnode *vp,
+ struct label *label,
+ struct cs_blob *cs_blob,
+ unsigned int *cs_flags,
+ int flags,
+ char **fatal_failure_desc, size_t *fatal_failure_desc_len
+);
/**
@brief Access control check for stat
@param active_cred Subject credential
@param cred Subject credential
@param vp Object vnode
@param label Policy label associated with vp
+ @param so Socket
Determine whether the subject identified by the credential can perform a
connect operation on the passed UNIX domain socket vnode.
typedef int mpo_vnode_check_uipc_connect_t(
kauth_cred_t cred,
struct vnode *vp,
- struct label *label
+ struct label *label,
+ socket_t so
);
/**
@brief Access control check for deleting vnode
struct componentname *cnp
);
+/**
+ @brief Inform MAC policies that an extended attribute has been removed from a vnode
+ @param cred Subject credential
+ @param vp Object node
+ @param label Policy label for vp
+ @param name Extended attribute name
+
+ Inform MAC policies that an extended attribute has been removed from a vnode.
+*/
+typedef void mpo_vnode_notify_deleteextattr_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ const char *name
+);
+
+
+/**
+ @brief Inform MAC policies that an ACL has been set on a vnode
+ @param cred Subject credential
+ @param vp Object node
+ @param label Policy label for vp
+ @param acl ACL structure pointer
+
+ Inform MAC policies that an ACL has been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setacl_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ struct kauth_acl *acl
+);
+
+/**
+ @brief Inform MAC policies that an attributes have been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param alist List of attributes to set
+
+ Inform MAC policies that an attributes have been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setattrlist_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ struct attrlist *alist
+);
+
+/**
+ @brief Inform MAC policies that an extended attribute has been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param name Extended attribute name
+ @param uio I/O structure pointer
+
+ Inform MAC policies that an extended attribute has been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setextattr_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ const char *name,
+ struct uio *uio
+);
+
+/**
+ @brief Inform MAC policies that flags have been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param flags File flags; see chflags(2)
+
+ Inform MAC policies that flags have been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setflags_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ u_long flags
+);
+
+/**
+ @brief Inform MAC policies that a new mode has been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param mode File mode; see chmod(2)
+
+ Inform MAC policies that a new mode has been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setmode_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ mode_t mode
+);
+
+/**
+ @brief Inform MAC policies that new uid/gid have been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param uid User ID
+ @param gid Group ID
+
+ Inform MAC policies that new uid/gid have been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setowner_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ uid_t uid,
+ gid_t gid
+);
+
+/**
+ @brief Inform MAC policies that new timestamps have been set on a vnode
+ @param cred Subject credential
+ @param vp Object vnode
+ @param label Policy label for vp
+ @param atime Access time; see utimes(2)
+ @param mtime Modification time; see utimes(2)
+
+ Inform MAC policies that new timestamps have been set on a vnode.
+*/
+typedef void mpo_vnode_notify_setutimes_t(
+ kauth_cred_t cred,
+ struct vnode *vp,
+ struct label *label,
+ struct timespec atime,
+ struct timespec mtime
+);
+
+/**
+ @brief Inform MAC policies that a vnode has been truncated
+ @param cred Subject credential
+ @param file_cred Credential associated with the struct fileproc
+ @param vp Object vnode
+ @param label Policy label for vp
+
+ Inform MAC policies that a vnode has been truncated.
+*/
+typedef void mpo_vnode_notify_truncate_t(
+ kauth_cred_t cred,
+ kauth_cred_t file_cred,
+ struct vnode *vp,
+ struct label *label
+);
+
+
/**
@brief Inform MAC policies that a pty slave has been granted
@param p Responsible process
* Please note that this should be kept in sync with the check assumptions
* policy in bsd/kern/policy_check.c (policy_ops struct).
*/
-#define MAC_POLICY_OPS_VERSION 39 /* inc when new reserved slots are taken */
+#define MAC_POLICY_OPS_VERSION 47 /* inc when new reserved slots are taken */
struct mac_policy_ops {
mpo_audit_check_postselect_t *mpo_audit_check_postselect;
mpo_audit_check_preselect_t *mpo_audit_check_preselect;
mpo_ipq_label_init_t *mpo_ipq_label_init;
mpo_ipq_label_update_t *mpo_ipq_label_update;
- mpo_reserved_hook_t *mpo_reserved1;
- mpo_reserved_hook_t *mpo_reserved2;
- mpo_reserved_hook_t *mpo_reserved3;
- mpo_reserved_hook_t *mpo_reserved4;
- mpo_reserved_hook_t *mpo_reserved5;
- mpo_reserved_hook_t *mpo_reserved6;
- mpo_reserved_hook_t *mpo_reserved7;
- mpo_reserved_hook_t *mpo_reserved8;
- mpo_reserved_hook_t *mpo_reserved9;
+ mpo_file_check_library_validation_t *mpo_file_check_library_validation;
+ mpo_vnode_notify_setacl_t *mpo_vnode_notify_setacl;
+ mpo_vnode_notify_setattrlist_t *mpo_vnode_notify_setattrlist;
+ mpo_vnode_notify_setextattr_t *mpo_vnode_notify_setextattr;
+ mpo_vnode_notify_setflags_t *mpo_vnode_notify_setflags;
+ mpo_vnode_notify_setmode_t *mpo_vnode_notify_setmode;
+ mpo_vnode_notify_setowner_t *mpo_vnode_notify_setowner;
+ mpo_vnode_notify_setutimes_t *mpo_vnode_notify_setutimes;
+ mpo_vnode_notify_truncate_t *mpo_vnode_notify_truncate;
mpo_mbuf_label_associate_bpfdesc_t *mpo_mbuf_label_associate_bpfdesc;
mpo_mbuf_label_associate_ifnet_t *mpo_mbuf_label_associate_ifnet;
mpo_proc_check_expose_task_t *mpo_proc_check_expose_task;
mpo_proc_check_set_host_special_port_t *mpo_proc_check_set_host_special_port;
mpo_proc_check_set_host_exception_port_t *mpo_proc_check_set_host_exception_port;
- mpo_reserved_hook_t *mpo_reserved11;
- mpo_reserved_hook_t *mpo_reserved12;
- mpo_reserved_hook_t *mpo_reserved13;
- mpo_reserved_hook_t *mpo_reserved14;
- mpo_reserved_hook_t *mpo_reserved15;
- mpo_reserved_hook_t *mpo_reserved16;
- mpo_reserved_hook_t *mpo_reserved17;
- mpo_reserved_hook_t *mpo_reserved18;
- mpo_reserved_hook_t *mpo_reserved19;
- mpo_reserved_hook_t *mpo_reserved20;
- mpo_reserved_hook_t *mpo_reserved21;
- mpo_reserved_hook_t *mpo_reserved22;
+ mpo_exc_action_check_exception_send_t *mpo_exc_action_check_exception_send;
+ mpo_exc_action_label_associate_t *mpo_exc_action_label_associate;
+ mpo_exc_action_label_copy_t *mpo_exc_action_label_copy;
+ mpo_exc_action_label_destroy_t *mpo_exc_action_label_destroy;
+ mpo_exc_action_label_init_t *mpo_exc_action_label_init;
+ mpo_exc_action_label_update_t *mpo_exc_action_label_update;
+
+ mpo_reserved_hook_t *mpo_reserved1;
+ mpo_reserved_hook_t *mpo_reserved2;
+ mpo_reserved_hook_t *mpo_reserved3;
+ mpo_reserved_hook_t *mpo_reserved4;
+ mpo_reserved_hook_t *mpo_reserved5;
+ mpo_reserved_hook_t *mpo_reserved6;
mpo_posixsem_check_create_t *mpo_posixsem_check_create;
mpo_posixsem_check_open_t *mpo_posixsem_check_open;
mpo_system_check_settime_t *mpo_system_check_settime;
mpo_system_check_swapoff_t *mpo_system_check_swapoff;
mpo_system_check_swapon_t *mpo_system_check_swapon;
- mpo_reserved_hook_t *mpo_reserved31;
+ mpo_reserved_hook_t *mpo_reserved7;
mpo_sysvmsg_label_associate_t *mpo_sysvmsg_label_associate;
mpo_sysvmsg_label_destroy_t *mpo_sysvmsg_label_destroy;
mpo_sysvshm_label_init_t *mpo_sysvshm_label_init;
mpo_sysvshm_label_recycle_t *mpo_sysvshm_label_recycle;
- mpo_reserved_hook_t *mpo_reserved23;
- mpo_reserved_hook_t *mpo_reserved24;
- mpo_reserved_hook_t *mpo_reserved25;
- mpo_reserved_hook_t *mpo_reserved26;
- mpo_reserved_hook_t *mpo_reserved27;
- mpo_reserved_hook_t *mpo_reserved28;
+ mpo_reserved_hook_t *mpo_reserved8;
+ mpo_mount_check_snapshot_revert_t *mpo_mount_check_snapshot_revert;
+ mpo_vnode_check_getattr_t *mpo_vnode_check_getattr;
+ mpo_mount_check_snapshot_create_t *mpo_mount_check_snapshot_create;
+ mpo_mount_check_snapshot_delete_t *mpo_mount_check_snapshot_delete;
+ mpo_vnode_check_clone_t *mpo_vnode_check_clone;
mpo_proc_check_get_cs_info_t *mpo_proc_check_get_cs_info;
mpo_proc_check_set_cs_info_t *mpo_proc_check_set_cs_info;
mpo_vnode_notify_rename_t *mpo_vnode_notify_rename;
- mpo_reserved_hook_t *mpo_reserved32;
- mpo_reserved_hook_t *mpo_reserved33;
+ mpo_vnode_check_setacl_t *mpo_vnode_check_setacl;
+
+ mpo_vnode_notify_deleteextattr_t *mpo_vnode_notify_deleteextattr;
mpo_system_check_kas_info_t *mpo_system_check_kas_info;
struct mac_policy_conf {
const char *mpc_name; /** policy name */
const char *mpc_fullname; /** full name */
- const char **mpc_labelnames; /** managed label namespaces */
+ char const * const *mpc_labelnames; /** managed label namespaces */
unsigned int mpc_labelname_count; /** number of managed label namespaces */
struct mac_policy_ops *mpc_ops; /** operation vector */
int mpc_loadtime_flags; /** load time flags */
size_t *);
int mac_vnop_removexattr(struct vnode *, const char *);
+/**
+ @brief Set an extended attribute on a vnode-based fileglob.
+ @param fg fileglob representing file to attach the extended attribute
+ @param name extended attribute name
+ @param buf buffer of data to use as the extended attribute value
+ @param len size of buffer
+
+ Sets the value of an extended attribute on a file.
+
+ Caller must hold an iocount on the vnode represented by the fileglob.
+*/
+int mac_file_setxattr(struct fileglob *fg, const char *name, char *buf, size_t len);
+
+/**
+ @brief Get an extended attribute from a vnode-based fileglob.
+ @param fg fileglob representing file to read the extended attribute
+ @param name extended attribute name
+ @param buf buffer of data to hold the extended attribute value
+ @param len size of buffer
+ @param attrlen size of full extended attribute value
+
+ Gets the value of an extended attribute on a file.
+
+ Caller must hold an iocount on the vnode represented by the fileglob.
+*/
+int mac_file_getxattr(struct fileglob *fg, const char *name, char *buf, size_t len,
+ size_t *attrlen);
+
+/**
+ @brief Remove an extended attribute from a vnode-based fileglob.
+ @param fg fileglob representing file to remove the extended attribute
+ @param name extended attribute name
+
+ Removes the named extended attribute from the file.
+
+ Caller must hold an iocount on the vnode represented by the fileglob.
+*/
+int mac_file_removexattr(struct fileglob *fg, const char *name);
+
+
/*
* Arbitrary limit on how much data will be logged by the audit
* entry points above.
projects / apple / xnu.git / blobdiff