Add FreeBSD capabilities defines
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capsicum.go
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242
capsicum.go
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// This is an implementation of libbsm
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// Copyright johan@nosd.in 2023
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//
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//go:build freebsd
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// +build freebsd
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//
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package main
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const (
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// From freeebsd-src/sys/sys/caprights.h :
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/*
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* The top two bits in the first element of the cr_rights[] array contain
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* total number of elements in the array - 2. This means if those two bits are
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* equal to 0, we have 2 array elements.
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* The top two bits in all remaining array elements should be 0.
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* The next five bits contain array index. Only one bit is used and bit position
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* in this five-bits range defines array index. This means there can be at most
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* five array elements.
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*/
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// So, I lazily chose to include index bit in following values
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/* INDEX 0 */
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/*
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* General file I/O.
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*/
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/* Allows for openat(O_RDONLY), read(2), readv(2). */
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CAP_READ = 0x0200000000000001
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/* Allows for openat(O_WRONLY | O_APPEND), write(2), writev(2). */
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CAP_WRITE = 0x0200000000000002
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/* Allows for lseek(fd, 0, SEEK_CUR). */
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CAP_SEEK_TELL = 0x0200000000000004
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/* Allows for lseek(2). */
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CAP_SEEK = CAP_SEEK_TELL | 0x0200000000000008
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/* Allows for aio_read(2), pread(2), preadv(2). */
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CAP_PREAD = (CAP_SEEK | CAP_READ)
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/*
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* Allows for aio_write(2), openat(O_WRONLY) (without O_APPEND), pwrite(2),
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* pwritev(2).
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*/
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CAP_PWRITE = (CAP_SEEK | CAP_WRITE)
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/* Allows for mmap(PROT_NONE). */
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CAP_MMAP = 0x0200000000000010
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/* Allows for mmap(PROT_READ). */
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CAP_MMAP_R = (CAP_MMAP | CAP_SEEK | CAP_READ)
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/* Allows for mmap(PROT_WRITE). */
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CAP_MMAP_W = (CAP_MMAP | CAP_SEEK | CAP_WRITE)
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/* Allows for mmap(PROT_EXEC). */
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CAP_MMAP_X = (CAP_MMAP | CAP_SEEK | 0x0200000000000020)
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/* Allows for mmap(PROT_READ | PROT_WRITE). */
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CAP_MMAP_RW = (CAP_MMAP_R | CAP_MMAP_W)
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/* Allows for mmap(PROT_READ | PROT_EXEC). */
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CAP_MMAP_RX = (CAP_MMAP_R | CAP_MMAP_X)
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/* Allows for mmap(PROT_WRITE | PROT_EXEC). */
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CAP_MMAP_WX = (CAP_MMAP_W | CAP_MMAP_X)
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/* Allows for mmap(PROT_READ | PROT_WRITE | PROT_EXEC). */
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CAP_MMAP_RWX = (CAP_MMAP_R | CAP_MMAP_W | CAP_MMAP_X)
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/* Allows for openat(O_CREAT). */
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CAP_CREATE = 0x0200000000000040
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/* Allows for openat(O_EXEC) and fexecve(2) in turn. */
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CAP_FEXECVE = 0x0200000000000080
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/* Allows for openat(O_SYNC), openat(O_FSYNC), fsync(2), aio_fsync(2). */
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CAP_FSYNC = 0x0200000000000100
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/* Allows for openat(O_TRUNC), ftruncate(2). */
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CAP_FTRUNCATE = 0x0200000000000200
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/* Lookups - used to constrain *at() calls. */
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CAP_LOOKUP = 0x0200000000000400
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/* VFS methods. */
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/* Allows for fchdir(2). */
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CAP_FCHDIR = 0x0200000000000800
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/* Allows for fchflags(2). */
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CAP_FCHFLAGS = 0x0200000000001000
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/* Allows for fchflags(2) and chflagsat(2). */
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CAP_CHFLAGSAT = (CAP_FCHFLAGS | CAP_LOOKUP)
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/* Allows for fchmod(2). */
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CAP_FCHMOD = 0x0200000000002000
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/* Allows for fchmod(2) and fchmodat(2). */
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CAP_FCHMODAT = (CAP_FCHMOD | CAP_LOOKUP)
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/* Allows for fchown(2). */
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CAP_FCHOWN = 0x0200000000004000
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/* Allows for fchown(2) and fchownat(2). */
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CAP_FCHOWNAT = (CAP_FCHOWN | CAP_LOOKUP)
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/* Allows for fcntl(2). */
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CAP_FCNTL = 0x0200000000008000
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/*
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* Allows for flock(2), openat(O_SHLOCK), openat(O_EXLOCK),
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* fcntl(F_SETLK_REMOTE), fcntl(F_SETLKW), fcntl(F_SETLK), fcntl(F_GETLK).
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*/
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CAP_FLOCK = 0x0200000000010000
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/* Allows for fpathconf(2). */
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CAP_FPATHCONF = 0x0200000000020000
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/* Allows for UFS background-fsck operations. */
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CAP_FSCK = 0x0200000000040000
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/* Allows for fstat(2). */
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CAP_FSTAT = 0x0200000000080000
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/* Allows for fstat(2), fstatat(2) and faccessat(2). */
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CAP_FSTATAT = (CAP_FSTAT | CAP_LOOKUP)
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/* Allows for fstatfs(2). */
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CAP_FSTATFS = 0x0200000000100000
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/* Allows for futimens(2) and futimes(2). */
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CAP_FUTIMES = 0x0200000000200000
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/* Allows for futimens(2), futimes(2), futimesat(2) and utimensat(2). */
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CAP_FUTIMESAT = (CAP_FUTIMES | CAP_LOOKUP)
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/* Allows for linkat(2) (target directory descriptor). */
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CAP_LINKAT_TARGET = (CAP_LOOKUP | 0x0200000000400000)
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/* Allows for mkdirat(2). */
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CAP_MKDIRAT = (CAP_LOOKUP | 0x0200000000800000)
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/* Allows for mkfifoat(2). */
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CAP_MKFIFOAT = (CAP_LOOKUP | 0x0200000001000000)
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/* Allows for mknodat(2). */
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CAP_MKNODAT = (CAP_LOOKUP | 0x0200000002000000)
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/* Allows for renameat(2) (source directory descriptor). */
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CAP_RENAMEAT_SOURCE = (CAP_LOOKUP | 0x0200000004000000)
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/* Allows for symlinkat(2). */
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CAP_SYMLINKAT = (CAP_LOOKUP | 0x0200000008000000)
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/*
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* Allows for unlinkat(2) and renameat(2) if destination object exists and
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* will be removed.
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*/
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CAP_UNLINKAT = (CAP_LOOKUP | 0x0200000010000000)
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/* Socket operations. */
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/* Allows for accept(2) and accept4(2). */
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CAP_ACCEPT = 0x0200000020000000
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/* Allows for bind(2). */
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CAP_BIND = 0x0200000040000000
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/* Allows for connect(2). */
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CAP_CONNECT = 0x0200000080000000
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/* Allows for getpeername(2). */
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CAP_GETPEERNAME = 0x0200000100000000
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/* Allows for getsockname(2). */
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CAP_GETSOCKNAME = 0x0200000200000000
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/* Allows for getsockopt(2). */
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CAP_GETSOCKOPT = 0x0200000400000000
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/* Allows for listen(2). */
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CAP_LISTEN = 0x0200000800000000
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/* Allows for sctp_peeloff(2). */
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CAP_PEELOFF = 0x0300001000000000
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CAP_RECV = CAP_READ
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CAP_SEND = CAP_WRITE
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/* Allows for setsockopt(2). */
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CAP_SETSOCKOPT = 0x0200002000000000
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/* Allows for shutdown(2). */
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CAP_SHUTDOWN = 0x0200004000000000
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/* Allows for bindat(2) on a directory descriptor. */
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CAP_BINDAT = (CAP_LOOKUP | 0x0200008000000000)
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/* Allows for connectat(2) on a directory descriptor. */
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CAP_CONNECTAT = (CAP_LOOKUP | 0x0200010000000000)
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/* Allows for linkat(2) (source directory descriptor). */
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CAP_LINKAT_SOURCE = (CAP_LOOKUP | 0x0200020000000000)
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/* Allows for renameat(2) (target directory descriptor). */
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CAP_RENAMEAT_TARGET = (CAP_LOOKUP | 0x0200040000000000)
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CAP_SOCK_CLIENT = (CAP_CONNECT | CAP_GETPEERNAME | CAP_GETSOCKNAME | CAP_GETSOCKOPT |
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CAP_PEELOFF | CAP_RECV | CAP_SEND | CAP_SETSOCKOPT | CAP_SHUTDOWN)
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CAP_SOCK_SERVER = (CAP_ACCEPT | CAP_BIND | CAP_GETPEERNAME | CAP_GETSOCKNAME |
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CAP_GETSOCKOPT | CAP_LISTEN | CAP_PEELOFF | CAP_RECV | CAP_SEND |
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CAP_SETSOCKOPT | CAP_SHUTDOWN)
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/* All used bits for index 0. */
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CAP_ALL0 = 0x020007FFFFFFFFFF
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/* Available bits for index 0. */
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CAP_UNUSED0_44 = 0x0200080000000000
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/* ... */
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CAP_UNUSED0_57 = 0x0300000000000000
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/* INDEX 1 */
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/* Mandatory Access Control. */
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/* Allows for mac_get_fd(3). */
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CAP_MAC_GET = 0x0400000000000001
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/* Allows for mac_set_fd(3). */
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CAP_MAC_SET = 0x0400000000000002
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/* Methods on semaphores. */
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CAP_SEM_GETVALUE = 0x0400000000000004
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CAP_SEM_POST = 0x0400000000000008
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CAP_SEM_WAIT = 0x0400000000000010
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/* Allows select(2) and poll(2) on descriptor. */
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CAP_EVENT = 0x0400000000000020
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/* Allows for kevent(2) on kqueue descriptor with eventlist != NULL. */
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CAP_KQUEUE_EVENT = 0x0400000000000040
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/* Strange and powerful rights that should not be given lightly. */
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/* Allows for ioctl(2). */
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CAP_IOCTL = 0x0400000000000080
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CAP_TTYHOOK = 0x0400000000000100
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/* Process management via process descriptors. */
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/* Allows for pdgetpid(2). */
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CAP_PDGETPID = 0x0400000000000200
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/*
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* Allows for pdwait4(2).
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*
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* XXX: this constant was imported unused, but is targeted to be implemented
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* in the future (bug 235871).
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*/
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CAP_PDWAIT = 0x0400000000000400
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/* Allows for pdkill(2). */
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CAP_PDKILL = 0x0400000000000800
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/* Extended attributes. */
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/* Allows for extattr_delete_fd(2). */
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CAP_EXTATTR_DELETE = 0x0400000000001000
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/* Allows for extattr_get_fd(2). */
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CAP_EXTATTR_GET = 0x0400000000002000
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/* Allows for extattr_list_fd(2). */
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CAP_EXTATTR_LIST = 0x0400000000004000
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/* Allows for extattr_set_fd(2). */
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CAP_EXTATTR_SET = 0x0400000000008000
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/* Access Control Lists. */
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/* Allows for acl_valid_fd_np(3). */
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CAP_ACL_CHECK = 0x0400000000010000
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/* Allows for acl_delete_fd_np(3). */
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CAP_ACL_DELETE = 0x0400000000020000
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/* Allows for acl_get_fd(3) and acl_get_fd_np(3). */
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CAP_ACL_GET = 0x0400000000040000
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/* Allows for acl_set_fd(3) and acl_set_fd_np(3). */
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CAP_ACL_SET = 0x0400000000080000
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/* Allows for kevent(2) on kqueue descriptor with changelist != NULL. */
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CAP_KQUEUE_CHANGE = 0x0400000000100000
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CAP_KQUEUE = (CAP_KQUEUE_EVENT | CAP_KQUEUE_CHANGE)
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/* All used bits for index 1. */
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CAP_ALL1 = 0x04000000001FFFFF
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/* Available bits for index 1. */
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CAP_UNUSED1_22 = 0x0400000000200000
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/* ... */
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CAP_UNUSED1_57 = 0x0500000000000000
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)
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