/*- * Copyright (c) 1999-2002 Robert N. M. Watson * Copyright (c) 2001-2005 Networks Associates Technology, Inc. * Copyright (c) 2005-2006 SPARTA, 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. * * This software was enhanced by SPARTA ISSO under SPAWAR contract * N66001-04-C-6019 ("SEFOS"). * * 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. * * $FreeBSD$ */ /* * Kernel interface for Mandatory Access Control -- how kernel services * interact with the TrustedBSD MAC Framework. */ #ifndef _SECURITY_MAC_MAC_FRAMEWORK_H_ #define _SECURITY_MAC_MAC_FRAMEWORK_H_ #ifndef _KERNEL #error "no user-serviceable parts inside" #endif struct auditinfo; struct auditinfo_addr; struct bpf_d; struct cdev; struct componentname; struct devfs_dirent; struct ifnet; struct ifreq; struct image_params; struct inpcb; struct ipq; struct ksem; struct label; struct m_tag; struct mac; struct mbuf; struct mount; struct msg; struct msqid_kernel; struct proc; struct semid_kernel; struct shmid_kernel; struct sockaddr; struct socket; struct sysctl_oid; struct sysctl_req; struct pipepair; struct thread; struct timespec; struct ucred; struct uio; struct vattr; struct vnode; struct vop_setlabel_args; #include /* XXX acl_type_t */ /* * Kernel functions to manage and evaluate labels. */ void mac_init_bpfdesc(struct bpf_d *); void mac_init_cred(struct ucred *); void mac_init_devfs(struct devfs_dirent *); void mac_init_ifnet(struct ifnet *); int mac_init_inpcb(struct inpcb *, int); void mac_init_sysv_msgmsg(struct msg *); void mac_init_sysv_msgqueue(struct msqid_kernel *); void mac_init_sysv_sem(struct semid_kernel *); void mac_init_sysv_shm(struct shmid_kernel *); int mac_init_ipq(struct ipq *, int); int mac_init_socket(struct socket *, int); void mac_init_pipe(struct pipepair *); void mac_init_posix_sem(struct ksem *); int mac_init_mbuf(struct mbuf *, int); int mac_init_mbuf_tag(struct m_tag *, int); void mac_init_mount(struct mount *); void mac_init_proc(struct proc *); void mac_init_vnode(struct vnode *); void mac_copy_mbuf(struct mbuf *, struct mbuf *); void mac_copy_mbuf_tag(struct m_tag *, struct m_tag *); void mac_copy_vnode_label(struct label *, struct label *); void mac_destroy_bpfdesc(struct bpf_d *); void mac_destroy_cred(struct ucred *); void mac_destroy_devfs(struct devfs_dirent *); void mac_destroy_ifnet(struct ifnet *); void mac_destroy_inpcb(struct inpcb *); void mac_destroy_sysv_msgmsg(struct msg *); void mac_destroy_sysv_msgqueue(struct msqid_kernel *); void mac_destroy_sysv_sem(struct semid_kernel *); void mac_destroy_sysv_shm(struct shmid_kernel *); void mac_destroy_ipq(struct ipq *); void mac_destroy_socket(struct socket *); void mac_destroy_pipe(struct pipepair *); void mac_destroy_posix_sem(struct ksem *); 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 *); struct label *mac_vnode_label_alloc(void); void mac_vnode_label_free(struct 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 ucred *cred, 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_relabel_vnode(struct ucred *cred, struct vnode *vp, struct label *newlabel); void mac_update_devfs(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 *so); void mac_create_socket_from_socket(struct socket *oldso, struct socket *newso); void mac_set_socket_peer_from_mbuf(struct mbuf *m, struct socket *so); void mac_set_socket_peer_from_socket(struct socket *oldso, struct socket *newso); void mac_create_pipe(struct ucred *cred, struct pipepair *pp); /* * Labeling event operations: System V IPC primitives */ void mac_create_sysv_msgmsg(struct ucred *cred, struct msqid_kernel *msqkptr, struct msg *msgptr); void mac_create_sysv_msgqueue(struct ucred *cred, struct msqid_kernel *msqkptr); void mac_create_sysv_sem(struct ucred *cred, struct semid_kernel *semakptr); void mac_create_sysv_shm(struct ucred *cred, struct shmid_kernel *shmsegptr); /* * Labeling event operations: POSIX (global/inter-process) semaphores. */ void mac_create_posix_sem(struct ucred *cred, struct ksem *ks); /* * Labeling event operations: network objects. */ void mac_create_bpfdesc(struct ucred *cred, struct bpf_d *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 *m, struct ipq *q); void mac_create_datagram_from_ipq(struct ipq *q, struct mbuf *m); void mac_create_fragment(struct mbuf *m, struct mbuf *frag); void mac_create_mbuf_from_inpcb(struct inpcb *inp, struct mbuf *m); void mac_create_mbuf_linklayer(struct ifnet *ifp, struct mbuf *m); void mac_create_mbuf_from_bpfdesc(struct bpf_d *d, struct mbuf *m); void mac_create_mbuf_from_ifnet(struct ifnet *ifp, struct mbuf *m); void mac_create_mbuf_multicast_encap(struct mbuf *m, struct ifnet *ifp, struct mbuf *mnew); void mac_create_mbuf_netlayer(struct mbuf *m, struct mbuf *mnew); int mac_fragment_match(struct mbuf *m, struct ipq *q); void mac_reflect_mbuf_icmp(struct mbuf *m); void mac_reflect_mbuf_tcp(struct mbuf *m); void mac_update_ipq(struct mbuf *m, struct ipq *q); void mac_inpcb_sosetlabel(struct socket *so, struct inpcb *inp); void mac_create_mbuf_from_firewall(struct mbuf *m); void mac_destroy_syncache(struct label **l); int mac_init_syncache(struct label **l); void mac_init_syncache_from_inpcb(struct label *l, struct inpcb *inp); void mac_create_mbuf_from_syncache(struct label *l, struct mbuf *m); /* * 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 *oldcred, struct ucred *newcred, struct vnode *vp, struct label *interpvnodelabel, struct image_params *imgp); int mac_execve_will_transition(struct ucred *cred, 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); /* * Label cleanup operation: This is the inverse complement for the mac_create * and associate type of hooks. This hook lets the policy module(s) perform a * cleanup/flushing operation on the label associated with the objects, * without freeing up the space allocated. This hook is useful in cases * where it is desirable to remove any labeling reference when recycling any * object to a pool. This hook does not replace the mac_destroy hooks. * * XXXRW: These object methods are inconsistent with the life cycles of other * objects, and likely should be revised to be more consistent. */ void mac_cleanup_sysv_msgmsg(struct msg *msgptr); void mac_cleanup_sysv_msgqueue(struct msqid_kernel *msqkptr); void mac_cleanup_sysv_sem(struct semid_kernel *semakptr); void mac_cleanup_sysv_shm(struct shmid_kernel *shmsegptr); /* * Access control checks. */ int mac_check_bpfdesc_receive(struct bpf_d *d, struct ifnet *ifp); int mac_check_cred_visible(struct ucred *cr1, struct ucred *cr2); int mac_check_ifnet_transmit(struct ifnet *ifp, struct mbuf *m); int mac_check_inpcb_deliver(struct inpcb *inp, struct mbuf *m); int mac_check_inpcb_visible(struct ucred *cred, struct inpcb *inp); int mac_check_sysv_msgmsq(struct ucred *cred, struct msg *msgptr, struct msqid_kernel *msqkptr); int mac_check_sysv_msgrcv(struct ucred *cred, struct msg *msgptr); int mac_check_sysv_msgrmid(struct ucred *cred, struct msg *msgptr); int mac_check_sysv_msqget(struct ucred *cred, struct msqid_kernel *msqkptr); int mac_check_sysv_msqsnd(struct ucred *cred, struct msqid_kernel *msqkptr); int mac_check_sysv_msqrcv(struct ucred *cred, struct msqid_kernel *msqkptr); int mac_check_sysv_msqctl(struct ucred *cred, struct msqid_kernel *msqkptr, int cmd); int mac_check_sysv_semctl(struct ucred *cred, struct semid_kernel *semakptr, int cmd); int mac_check_sysv_semget(struct ucred *cred, struct semid_kernel *semakptr); int mac_check_sysv_semop(struct ucred *cred,struct semid_kernel *semakptr, size_t accesstype); int mac_check_sysv_shmat(struct ucred *cred, struct shmid_kernel *shmsegptr, int shmflg); int mac_check_sysv_shmctl(struct ucred *cred, struct shmid_kernel *shmsegptr, int cmd); int mac_check_sysv_shmdt(struct ucred *cred, struct shmid_kernel *shmsegptr); int mac_check_sysv_shmget(struct ucred *cred, struct shmid_kernel *shmsegptr, int shmflg); 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_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_posix_sem_destroy(struct ucred *cred, struct ksem *ks); int mac_check_posix_sem_getvalue(struct ucred *cred,struct ksem *ks); int mac_check_posix_sem_open(struct ucred *cred, struct ksem *ks); int mac_check_posix_sem_post(struct ucred *cred, struct ksem *ks); int mac_check_posix_sem_unlink(struct ucred *cred, struct ksem *ks); int mac_check_posix_sem_wait(struct ucred *cred, struct ksem *ks); int mac_check_proc_debug(struct ucred *cred, struct proc *p); int mac_check_proc_sched(struct ucred *cred, struct proc *p); int mac_check_proc_setaudit(struct ucred *cred, struct auditinfo *ai); int mac_check_proc_setaudit_addr(struct ucred *cred, struct auditinfo_addr *aia); int mac_check_proc_setauid(struct ucred *cred, uid_t auid); int mac_check_proc_setuid(struct proc *p, struct ucred *cred, uid_t uid); int mac_check_proc_seteuid(struct proc *p, struct ucred *cred, uid_t euid); int mac_check_proc_setgid(struct proc *p, struct ucred *cred, gid_t gid); int mac_check_proc_setegid(struct proc *p, struct ucred *cred, gid_t egid); int mac_check_proc_setgroups(struct proc *p, struct ucred *cred, int ngroups, gid_t *gidset); int mac_check_proc_setreuid(struct proc *p, struct ucred *cred, uid_t ruid, uid_t euid); int mac_check_proc_setregid(struct proc *p, struct ucred *cred, gid_t rgid, gid_t egid); int mac_check_proc_setresuid(struct proc *p, struct ucred *cred, uid_t ruid, uid_t euid, uid_t suid); int mac_check_proc_setresgid(struct proc *p, struct ucred *cred, gid_t rgid, gid_t egid, gid_t sgid); int mac_check_proc_signal(struct ucred *cred, struct proc *p, int signum); int mac_check_proc_wait(struct ucred *cred, struct proc *p); int mac_check_socket_accept(struct ucred *cred, struct socket *so); int mac_check_socket_bind(struct ucred *cred, struct socket *so, struct sockaddr *sa); int mac_check_socket_connect(struct ucred *cred, struct socket *so, struct sockaddr *sa); int mac_check_socket_create(struct ucred *cred, int domain, int type, int proto); 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_poll(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_stat(struct ucred *cred, struct socket *so); int mac_check_socket_visible(struct ucred *cred, struct socket *so); int mac_check_system_acct(struct ucred *cred, struct vnode *vp); int mac_check_system_audit(struct ucred *cred, void *record, int length); int mac_check_system_auditctl(struct ucred *cred, struct vnode *vp); int mac_check_system_auditon(struct ucred *cred, int cmd); int mac_check_system_reboot(struct ucred *cred, int howto); 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_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 flags); 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_unlink(struct ucred *cred, struct vnode *dvp, struct vnode *vp, struct componentname *cnp); 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 *ifp); int mac_ioctl_ifnet_set(struct ucred *cred, struct ifreq *ifr, struct ifnet *ifp); 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); void mac_associate_nfsd_label(struct ucred *cred); int mac_priv_check(struct ucred *cred, int priv); int mac_priv_grant(struct ucred *cred, int priv); /* * Calls to help various file systems implement labeling functionality using * their existing EA implementation. */ int vop_stdsetlabel_ea(struct vop_setlabel_args *ap); #endif /* !_SECURITY_MAC_MAC_FRAMEWORK_H_ */