/*- * Copyright (c) 1999-2002 Robert N. M. Watson * Copyright (c) 2001-2003 Networks Associates Technology, Inc. * All rights reserved. * * This software was developed by Robert Watson for the TrustedBSD Project. * * This software was developed for the FreeBSD Project in part by Network * Associates Laboratories, the Security Research Division of Network * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), * as part of the DARPA CHATS research program. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Userland/kernel interface for Mandatory Access Control. * * The POSIX.1e implementation page may be reached at: * http://www.trustedbsd.org/ */ #ifndef _SYS_MAC_H_ #define _SYS_MAC_H_ #include #ifndef _POSIX_MAC #define _POSIX_MAC #endif /* * MAC framework-related constants and limits. */ #define MAC_MAX_POLICY_NAME 32 #define MAC_MAX_LABEL_ELEMENT_NAME 32 #define MAC_MAX_LABEL_ELEMENT_DATA 4096 #define MAC_MAX_LABEL_BUF_LEN 8192 struct mac { size_t m_buflen; char *m_string; }; typedef struct mac *mac_t; #ifndef _KERNEL /* * Location of the userland MAC framework configuration file. mac.conf * binds policy names to shared libraries that understand those policies, * as well as setting defaults for MAC-aware applications. */ #define MAC_CONFFILE "/etc/mac.conf" /* * Extended non-POSIX.1e interfaces that offer additional services * available from the userland and kernel MAC frameworks. */ __BEGIN_DECLS int mac_execve(char *fname, char **argv, char **envv, mac_t _label); int mac_free(mac_t _label); int mac_from_text(mac_t *_label, const char *_text); int mac_get_fd(int _fd, mac_t _label); int mac_get_file(const char *_path, mac_t _label); int mac_get_link(const char *_path, mac_t _label); int mac_get_peer(int _fd, mac_t _label); int mac_get_pid(pid_t _pid, mac_t _label); int mac_get_proc(mac_t _label); int mac_is_present(const char *_policyname); int mac_prepare(mac_t *_label, const char *_elements); int mac_prepare_file_label(mac_t *_label); int mac_prepare_ifnet_label(mac_t *_label); int mac_prepare_process_label(mac_t *_label); int mac_prepare_type(mac_t *_label, const char *_type); int mac_set_fd(int _fildes, const mac_t _label); int mac_set_file(const char *_path, mac_t _label); int mac_set_link(const char *_path, mac_t _label); int mac_set_proc(const mac_t _label); int mac_syscall(const char *_policyname, int _call, void *_arg); int mac_to_text(mac_t mac, char **_text); __END_DECLS #else /* _KERNEL */ /* * Kernel functions to manage and evaluate labels. */ struct bpf_d; struct cdev; struct componentname; struct devfs_dirent; struct ifnet; struct ifreq; struct inpcb; struct image_params; struct inpcb; struct ipq; struct m_tag; struct mbuf; struct mount; struct proc; struct sockaddr; struct socket; struct sysctl_oid; struct sysctl_req; struct pipepair; struct thread; struct timespec; struct ucred; struct uio; struct vattr; struct vnode; #include /* XXX acl_type_t */ struct vop_setlabel_args; /* * Label operations. */ void mac_init_bpfdesc(struct bpf_d *); void mac_init_cred(struct ucred *); void mac_init_devfsdirent(struct devfs_dirent *); void mac_init_ifnet(struct ifnet *); int mac_init_inpcb(struct inpcb *, int flag); int mac_init_ipq(struct ipq *, int flag); int mac_init_socket(struct socket *, int flag); void mac_init_pipe(struct pipepair *); int mac_init_mbuf(struct mbuf *mbuf, int flag); int mac_init_mbuf_tag(struct m_tag *, int flag); void mac_init_mount(struct mount *); void mac_init_proc(struct proc *); void mac_init_vnode(struct vnode *); void mac_copy_mbuf_tag(struct m_tag *, struct m_tag *); void mac_copy_vnode_label(struct label *, struct label *label); void mac_destroy_bpfdesc(struct bpf_d *); void mac_destroy_cred(struct ucred *); void mac_destroy_devfsdirent(struct devfs_dirent *); void mac_destroy_ifnet(struct ifnet *); void mac_destroy_inpcb(struct inpcb *); void mac_destroy_ipq(struct ipq *); void mac_destroy_socket(struct socket *); void mac_destroy_pipe(struct pipepair *); void mac_destroy_proc(struct proc *); void mac_destroy_mbuf_tag(struct m_tag *); void mac_destroy_mount(struct mount *); void mac_destroy_vnode(struct vnode *); struct label *mac_cred_label_alloc(void); void mac_cred_label_free(struct label *label); struct label *mac_vnode_label_alloc(void); void mac_vnode_label_free(struct label *label); /* * Labeling event operations: file system objects, and things that * look a lot like file system objects. */ void mac_associate_vnode_devfs(struct mount *mp, struct devfs_dirent *de, struct vnode *vp); int mac_associate_vnode_extattr(struct mount *mp, struct vnode *vp); void mac_associate_vnode_singlelabel(struct mount *mp, struct vnode *vp); void mac_create_devfs_device(struct mount *mp, struct cdev *dev, struct devfs_dirent *de); void mac_create_devfs_directory(struct mount *mp, char *dirname, int dirnamelen, struct devfs_dirent *de); void mac_create_devfs_symlink(struct ucred *cred, struct mount *mp, struct devfs_dirent *dd, struct devfs_dirent *de); int mac_create_vnode_extattr(struct ucred *cred, struct mount *mp, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); void mac_create_mount(struct ucred *cred, struct mount *mp); void mac_create_root_mount(struct ucred *cred, struct mount *mp); void mac_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel); void mac_update_devfsdirent(struct mount *mp, struct devfs_dirent *de, struct vnode *vp); /* * Labeling event operations: IPC objects. */ void mac_create_mbuf_from_socket(struct socket *so, struct mbuf *m); void mac_create_socket(struct ucred *cred, struct socket *socket); void mac_create_socket_from_socket(struct socket *oldsocket, struct socket *newsocket); void mac_set_socket_peer_from_mbuf(struct mbuf *mbuf, struct socket *socket); void mac_set_socket_peer_from_socket(struct socket *oldsocket, struct socket *newsocket); void mac_create_pipe(struct ucred *cred, struct pipepair *pp); /* * Labeling event operations: network objects. */ void mac_create_bpfdesc(struct ucred *cred, struct bpf_d *bpf_d); void mac_create_ifnet(struct ifnet *ifp); void mac_create_inpcb_from_socket(struct socket *so, struct inpcb *inp); void mac_create_ipq(struct mbuf *fragment, struct ipq *ipq); void mac_create_datagram_from_ipq(struct ipq *ipq, struct mbuf *datagram); void mac_create_fragment(struct mbuf *datagram, struct mbuf *fragment); void mac_create_mbuf_from_inpcb(struct inpcb *inp, struct mbuf *m); void mac_create_mbuf_from_mbuf(struct mbuf *oldmbuf, struct mbuf *newmbuf); void mac_create_mbuf_linklayer(struct ifnet *ifnet, struct mbuf *m); void mac_create_mbuf_from_bpfdesc(struct bpf_d *bpf_d, struct mbuf *m); void mac_create_mbuf_from_ifnet(struct ifnet *ifnet, struct mbuf *m); void mac_create_mbuf_multicast_encap(struct mbuf *oldmbuf, struct ifnet *ifnet, struct mbuf *newmbuf); void mac_create_mbuf_netlayer(struct mbuf *oldmbuf, struct mbuf *newmbuf); int mac_fragment_match(struct mbuf *fragment, struct ipq *ipq); void mac_reflect_mbuf_icmp(struct mbuf *m); void mac_reflect_mbuf_tcp(struct mbuf *m); void mac_update_ipq(struct mbuf *fragment, struct ipq *ipq); void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); /* * Labeling event operations: processes. */ void mac_copy_cred(struct ucred *cr1, struct ucred *cr2); int mac_execve_enter(struct image_params *imgp, struct mac *mac_p); void mac_execve_exit(struct image_params *imgp); void mac_execve_transition(struct ucred *old, struct ucred *new, struct vnode *vp, struct label *interpvnodelabel, struct image_params *imgp); int mac_execve_will_transition(struct ucred *old, struct vnode *vp, struct label *interpvnodelabel, struct image_params *imgp); void mac_create_proc0(struct ucred *cred); void mac_create_proc1(struct ucred *cred); void mac_thread_userret(struct thread *td); /* Access control checks. */ int mac_check_bpfdesc_receive(struct bpf_d *bpf_d, struct ifnet *ifnet); int mac_check_cred_visible(struct ucred *u1, struct ucred *u2); int mac_check_ifnet_transmit(struct ifnet *ifnet, struct mbuf *m); int mac_check_inpcb_deliver(struct inpcb *inp, struct mbuf *m); int mac_check_kenv_dump(struct ucred *cred); int mac_check_kenv_get(struct ucred *cred, char *name); int mac_check_kenv_set(struct ucred *cred, char *name, char *value); int mac_check_kenv_unset(struct ucred *cred, char *name); int mac_check_kld_load(struct ucred *cred, struct vnode *vp); int mac_check_kld_stat(struct ucred *cred); int mac_check_kld_unload(struct ucred *cred); int mac_check_mount_stat(struct ucred *cred, struct mount *mp); int mac_check_pipe_ioctl(struct ucred *cred, struct pipepair *pp, unsigned long cmd, void *data); int mac_check_pipe_poll(struct ucred *cred, struct pipepair *pp); int mac_check_pipe_read(struct ucred *cred, struct pipepair *pp); int mac_check_pipe_stat(struct ucred *cred, struct pipepair *pp); int mac_check_pipe_write(struct ucred *cred, struct pipepair *pp); int mac_check_proc_debug(struct ucred *cred, struct proc *proc); int mac_check_proc_sched(struct ucred *cred, struct proc *proc); int mac_check_proc_signal(struct ucred *cred, struct proc *proc, int signum); int mac_check_socket_bind(struct ucred *cred, struct socket *so, struct sockaddr *sockaddr); int mac_check_socket_connect(struct ucred *cred, struct socket *so, struct sockaddr *sockaddr); int mac_check_socket_deliver(struct socket *so, struct mbuf *m); int mac_check_socket_listen(struct ucred *cred, struct socket *so); int mac_check_socket_receive(struct ucred *cred, struct socket *so); int mac_check_socket_send(struct ucred *cred, struct socket *so); int mac_check_socket_visible(struct ucred *cred, struct socket *so); int mac_check_sysarch_ioperm(struct ucred *cred); int mac_check_system_acct(struct ucred *cred, struct vnode *vp); int mac_check_system_nfsd(struct ucred *cred); int mac_check_system_reboot(struct ucred *cred, int howto); int mac_check_system_settime(struct ucred *cred); int mac_check_system_swapon(struct ucred *cred, struct vnode *vp); int mac_check_system_swapoff(struct ucred *cred, struct vnode *vp); int mac_check_system_sysctl(struct ucred *cred, struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req); int mac_check_vnode_access(struct ucred *cred, struct vnode *vp, int acc_mode); int mac_check_vnode_chdir(struct ucred *cred, struct vnode *dvp); int mac_check_vnode_chroot(struct ucred *cred, struct vnode *dvp); int mac_check_vnode_create(struct ucred *cred, struct vnode *dvp, struct componentname *cnp, struct vattr *vap); int mac_check_vnode_delete(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp, acl_type_t type); int mac_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name); int mac_check_vnode_exec(struct ucred *cred, struct vnode *vp, struct image_params *imgp); int mac_check_vnode_getacl(struct ucred *cred, struct vnode *vp, acl_type_t type); int mac_check_vnode_getextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name, struct uio *uio); int mac_check_vnode_link(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_check_vnode_listextattr(struct ucred *cred, struct vnode *vp, int attrnamespace); int mac_check_vnode_lookup(struct ucred *cred, struct vnode *dvp, struct componentname *cnp); int mac_check_vnode_mmap(struct ucred *cred, struct vnode *vp, int prot); int mac_check_vnode_mprotect(struct ucred *cred, struct vnode *vp, int prot); int mac_check_vnode_open(struct ucred *cred, struct vnode *vp, int acc_mode); int mac_check_vnode_poll(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_check_vnode_read(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_check_vnode_readdir(struct ucred *cred, struct vnode *vp); int mac_check_vnode_readlink(struct ucred *cred, struct vnode *vp); int mac_check_vnode_rename_from(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); int mac_check_vnode_rename_to(struct ucred *cred, struct vnode *dvp, struct vnode *vp, int samedir, struct componentname *cnp); int mac_check_vnode_revoke(struct ucred *cred, struct vnode *vp); int mac_check_vnode_setacl(struct ucred *cred, struct vnode *vp, acl_type_t type, struct acl *acl); int mac_check_vnode_setextattr(struct ucred *cred, struct vnode *vp, int attrnamespace, const char *name, struct uio *uio); int mac_check_vnode_setflags(struct ucred *cred, struct vnode *vp, u_long flags); int mac_check_vnode_setmode(struct ucred *cred, struct vnode *vp, mode_t mode); int mac_check_vnode_setowner(struct ucred *cred, struct vnode *vp, uid_t uid, gid_t gid); int mac_check_vnode_setutimes(struct ucred *cred, struct vnode *vp, struct timespec atime, struct timespec mtime); int mac_check_vnode_stat(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_check_vnode_write(struct ucred *active_cred, struct ucred *file_cred, struct vnode *vp); int mac_getsockopt_label(struct ucred *cred, struct socket *so, struct mac *extmac); int mac_getsockopt_peerlabel(struct ucred *cred, struct socket *so, struct mac *extmac); int mac_ioctl_ifnet_get(struct ucred *cred, struct ifreq *ifr, struct ifnet *ifnet); int mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, struct ifnet *ifnet); int mac_setsockopt_label(struct ucred *cred, struct socket *so, struct mac *extmac); int mac_pipe_label_set(struct ucred *cred, struct pipepair *pp, struct label *label); void mac_cred_mmapped_drop_perms(struct thread *td, struct ucred *cred); /* * Calls to help various file systems implement labeling functionality * using their existing EA implementation. */ int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); #endif /* !_KERNEL */ #endif /* !_SYS_MAC_H_ */