/* $OpenBSD: pledge.h,v 1.41 2020/04/05 07:31:45 visa Exp $ */ /* * Copyright (c) 2015 Nicholas Marriott * Copyright (c) 2015 Theo de Raadt * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _SYS_PLEDGE_H_ #define _SYS_PLEDGE_H_ #include /* * pledge(2) requests */ #define PLEDGE_ALWAYS 0xffffffffffffffffULL #define PLEDGE_RPATH 0x0000000000000001ULL /* allow open for read */ #define PLEDGE_WPATH 0x0000000000000002ULL /* allow open for write */ #define PLEDGE_CPATH 0x0000000000000004ULL /* allow creat, mkdir, unlink etc */ #define PLEDGE_STDIO 0x0000000000000008ULL /* operate on own pid */ #define PLEDGE_TMPPATH 0x0000000000000010ULL /* for mk*temp() */ #define PLEDGE_DNS 0x0000000000000020ULL /* DNS services */ #define PLEDGE_INET 0x0000000000000040ULL /* AF_INET/AF_INET6 sockets */ #define PLEDGE_FLOCK 0x0000000000000080ULL /* file locking */ #define PLEDGE_UNIX 0x0000000000000100ULL /* AF_UNIX sockets */ #define PLEDGE_ID 0x0000000000000200ULL /* allow setuid, setgid, etc */ #define PLEDGE_TAPE 0x0000000000000400ULL /* Tape ioctl */ #define PLEDGE_GETPW 0x0000000000000800ULL /* YP enables if ypbind.lock */ #define PLEDGE_PROC 0x0000000000001000ULL /* fork, waitpid, etc */ #define PLEDGE_SETTIME 0x0000000000002000ULL /* able to set/adj time/freq */ #define PLEDGE_FATTR 0x0000000000004000ULL /* allow explicit file st_* mods */ #define PLEDGE_PROTEXEC 0x0000000000008000ULL /* allow use of PROT_EXEC */ #define PLEDGE_TTY 0x0000000000010000ULL /* tty setting */ #define PLEDGE_SENDFD 0x0000000000020000ULL /* AF_UNIX CMSG fd sending */ #define PLEDGE_RECVFD 0x0000000000040000ULL /* AF_UNIX CMSG fd receiving */ #define PLEDGE_EXEC 0x0000000000080000ULL /* execve, child is free of pledge */ #define PLEDGE_ROUTE 0x0000000000100000ULL /* routing lookups */ #define PLEDGE_MCAST 0x0000000000200000ULL /* multicast joins */ #define PLEDGE_VMINFO 0x0000000000400000ULL /* vminfo listings */ #define PLEDGE_PS 0x0000000000800000ULL /* ps listings */ #define PLEDGE_DISKLABEL 0x0000000002000000ULL /* disklabels */ #define PLEDGE_PF 0x0000000004000000ULL /* pf ioctls */ #define PLEDGE_AUDIO 0x0000000008000000ULL /* audio ioctls */ #define PLEDGE_DPATH 0x0000000010000000ULL /* mknod & mkfifo */ #define PLEDGE_DRM 0x0000000020000000ULL /* drm ioctls */ #define PLEDGE_VMM 0x0000000040000000ULL /* vmm ioctls */ #define PLEDGE_CHOWN 0x0000000080000000ULL /* chown(2) family */ #define PLEDGE_CHOWNUID 0x0000000100000000ULL /* allow owner/group changes */ #define PLEDGE_BPF 0x0000000200000000ULL /* bpf ioctl */ #define PLEDGE_ERROR 0x0000000400000000ULL /* ENOSYS instead of kill */ #define PLEDGE_WROUTE 0x0000000800000000ULL /* interface address ioctls */ #define PLEDGE_UNVEIL 0x0000001000000000ULL /* allow unveil() */ #define PLEDGE_VIDEO 0x0000002000000000ULL /* video ioctls */ /* * Bits outside PLEDGE_USERSET are used by the kernel itself * to track program behaviours which have been observed. */ #define PLEDGE_USERSET 0x0fffffffffffffffULL #define PLEDGE_YPACTIVE 0x8000000000000000ULL /* YP use detected and allowed */ #ifdef PLEDGENAMES static const struct { uint64_t bits; const char *name; } pledgenames[] = { { PLEDGE_RPATH, "rpath" }, { PLEDGE_WPATH, "wpath" }, { PLEDGE_CPATH, "cpath" }, { PLEDGE_STDIO, "stdio" }, { PLEDGE_TMPPATH, "tmppath" }, { PLEDGE_DNS, "dns" }, { PLEDGE_INET, "inet" }, { PLEDGE_FLOCK, "flock" }, { PLEDGE_UNIX, "unix" }, { PLEDGE_ID, "id" }, { PLEDGE_TAPE, "tape" }, { PLEDGE_GETPW, "getpw" }, { PLEDGE_PROC, "proc" }, { PLEDGE_SETTIME, "settime" }, { PLEDGE_FATTR, "fattr" }, { PLEDGE_PROTEXEC, "prot_exec" }, { PLEDGE_TTY, "tty" }, { PLEDGE_SENDFD, "sendfd" }, { PLEDGE_RECVFD, "recvfd" }, { PLEDGE_EXEC, "exec" }, { PLEDGE_ROUTE, "route" }, { PLEDGE_MCAST, "mcast" }, { PLEDGE_VMINFO, "vminfo" }, { PLEDGE_PS, "ps" }, { PLEDGE_DISKLABEL, "disklabel" }, { PLEDGE_PF, "pf" }, { PLEDGE_AUDIO, "audio" }, { PLEDGE_DPATH, "dpath" }, { PLEDGE_DRM, "drm" }, { PLEDGE_VMM, "vmm" }, { PLEDGE_CHOWNUID, "chown" }, { PLEDGE_BPF, "bpf" }, { PLEDGE_ERROR, "error" }, { PLEDGE_WROUTE, "wroute" }, { PLEDGE_UNVEIL, "unveil" }, { PLEDGE_VIDEO, "video" }, { 0, NULL }, }; #endif #ifdef _KERNEL int pledge_syscall(struct proc *, int, uint64_t *); int pledge_fail(struct proc *, int, uint64_t); struct mbuf; struct nameidata; int pledge_namei(struct proc *, struct nameidata *, char *); int pledge_sendfd(struct proc *p, struct file *); int pledge_recvfd(struct proc *p, struct file *); int pledge_sysctl(struct proc *p, int namelen, int *name, void *new); int pledge_chown(struct proc *p, uid_t, gid_t); int pledge_adjtime(struct proc *p, const void *v); int pledge_sendit(struct proc *p, const void *to); int pledge_sockopt(struct proc *p, int set, int level, int optname); int pledge_socket(struct proc *p, int domain, unsigned int state); int pledge_ioctl(struct proc *p, long com, struct file *); int pledge_ioctl_drm(struct proc *p, long com, dev_t device); int pledge_ioctl_vmm(struct proc *p, long com); int pledge_flock(struct proc *p); int pledge_fcntl(struct proc *p, int cmd); int pledge_swapctl(struct proc *p); int pledge_kill(struct proc *p, pid_t pid); int pledge_protexec(struct proc *p, int prot); void ppath_destroy(struct process *ps); #endif /* _KERNEL */ #endif /* _SYS_PLEDGE_H_ */