1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2006 nCircle Network Security, Inc. 5 * All rights reserved. 6 * 7 * This software was developed by Robert N. M. Watson for the TrustedBSD 8 * Project under contract to nCircle Network Security, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY, 23 * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 25 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Privilege checking interface for BSD kernel. 34 */ 35 #ifndef _SYS_PRIV_H_ 36 #define _SYS_PRIV_H_ 37 38 /* 39 * Privilege list, sorted loosely by kernel subsystem. 40 * 41 * Think carefully before adding or reusing one of these privileges -- are 42 * there existing instances referring to the same privilege? Third party 43 * vendors may request the assignment of privileges to be used in loadable 44 * modules. Particular numeric privilege assignments are part of the 45 * loadable kernel module ABI, and should not be changed across minor 46 * releases. 47 * 48 * When adding a new privilege, remember to determine if it's appropriate 49 * for use in jail, and update the privilege switch in prison_priv_check() 50 * in kern_jail.c as necessary. 51 */ 52 53 /* 54 * Track beginning of privilege list. 55 */ 56 #define _PRIV_LOWEST 1 57 58 /* 59 * The remaining privileges typically correspond to one or a small 60 * number of specific privilege checks, and have (relatively) precise 61 * meanings. They are loosely sorted into a set of base system 62 * privileges, such as the ability to reboot, and then loosely by 63 * subsystem, indicated by a subsystem name. 64 */ 65 #define _PRIV_ROOT 1 /* Removed. */ 66 #define PRIV_ACCT 2 /* Manage process accounting. */ 67 #define PRIV_MAXFILES 3 /* Exceed system open files limit. */ 68 #define PRIV_MAXPROC 4 /* Exceed system processes limit. */ 69 #define PRIV_KTRACE 5 /* Set/clear KTRFAC_ROOT on ktrace. */ 70 #define PRIV_SETDUMPER 6 /* Configure dump device. */ 71 #define PRIV_REBOOT 8 /* Can reboot system. */ 72 #define PRIV_SWAPON 9 /* Can swapon(). */ 73 #define PRIV_SWAPOFF 10 /* Can swapoff(). */ 74 #define PRIV_MSGBUF 11 /* Can read kernel message buffer. */ 75 #define PRIV_IO 12 /* Can perform low-level I/O. */ 76 #define PRIV_KEYBOARD 13 /* Reprogram keyboard. */ 77 #define PRIV_DRIVER 14 /* Low-level driver privilege. */ 78 #define PRIV_ADJTIME 15 /* Set time adjustment. */ 79 #define PRIV_NTP_ADJTIME 16 /* Set NTP time adjustment. */ 80 #define PRIV_CLOCK_SETTIME 17 /* Can call clock_settime. */ 81 #define PRIV_SETTIMEOFDAY 18 /* Can call settimeofday. */ 82 #define _PRIV_SETHOSTID 19 /* Removed. */ 83 #define _PRIV_SETDOMAINNAME 20 /* Removed. */ 84 85 /* 86 * Audit subsystem privileges. 87 */ 88 #define PRIV_AUDIT_CONTROL 40 /* Can configure audit. */ 89 #define PRIV_AUDIT_FAILSTOP 41 /* Can run during audit fail stop. */ 90 #define PRIV_AUDIT_GETAUDIT 42 /* Can get proc audit properties. */ 91 #define PRIV_AUDIT_SETAUDIT 43 /* Can set proc audit properties. */ 92 #define PRIV_AUDIT_SUBMIT 44 /* Can submit an audit record. */ 93 94 /* 95 * Credential management privileges. 96 */ 97 #define PRIV_CRED_SETUID 50 /* setuid. */ 98 #define PRIV_CRED_SETEUID 51 /* seteuid to !ruid and !svuid. */ 99 #define PRIV_CRED_SETGID 52 /* setgid. */ 100 #define PRIV_CRED_SETEGID 53 /* setgid to !rgid and !svgid. */ 101 #define PRIV_CRED_SETGROUPS 54 /* Set process additional groups. */ 102 #define PRIV_CRED_SETREUID 55 /* setreuid. */ 103 #define PRIV_CRED_SETREGID 56 /* setregid. */ 104 #define PRIV_CRED_SETRESUID 57 /* setresuid. */ 105 #define PRIV_CRED_SETRESGID 58 /* setresgid. */ 106 #define PRIV_SEEOTHERGIDS 59 /* Exempt bsd.seeothergids. */ 107 #define PRIV_SEEOTHERUIDS 60 /* Exempt bsd.seeotheruids. */ 108 #define PRIV_SEEJAILPROC 61 /* Exempt from bsd.see_jail_proc. */ 109 #define PRIV_CRED_SETCRED 62 /* setcred. */ 110 111 /* 112 * Debugging privileges. 113 */ 114 #define PRIV_DEBUG_DIFFCRED 80 /* Exempt debugging other users. */ 115 #define PRIV_DEBUG_SUGID 81 /* Exempt debugging setuid proc. */ 116 #define PRIV_DEBUG_UNPRIV 82 /* Exempt unprivileged debug limit. */ 117 #define PRIV_DEBUG_DENIED 83 /* Exempt P2_NOTRACE. */ 118 119 /* 120 * Dtrace privileges. 121 */ 122 #define PRIV_DTRACE_KERNEL 90 /* Allow use of DTrace on the kernel. */ 123 #define PRIV_DTRACE_PROC 91 /* Allow attaching DTrace to process. */ 124 #define PRIV_DTRACE_USER 92 /* Process may submit DTrace events. */ 125 126 /* 127 * Firmware privilegs. 128 */ 129 #define PRIV_FIRMWARE_LOAD 100 /* Can load firmware. */ 130 131 /* 132 * Jail privileges. 133 */ 134 #define PRIV_JAIL_ATTACH 110 /* Attach to a jail. */ 135 #define PRIV_JAIL_SET 111 /* Set jail parameters. */ 136 #define PRIV_JAIL_REMOVE 112 /* Remove a jail. */ 137 138 /* 139 * Kernel environment privileges. 140 */ 141 #define PRIV_KENV_SET 120 /* Set kernel env. variables. */ 142 #define PRIV_KENV_UNSET 121 /* Unset kernel env. variables. */ 143 144 /* 145 * Loadable kernel module privileges. 146 */ 147 #define PRIV_KLD_LOAD 130 /* Load a kernel module. */ 148 #define PRIV_KLD_UNLOAD 131 /* Unload a kernel module. */ 149 150 /* 151 * Privileges associated with the MAC Framework and specific MAC policy 152 * modules. 153 */ 154 #define PRIV_MAC_PARTITION 140 /* Privilege in mac_partition policy. */ 155 #define PRIV_MAC_PRIVS 141 /* Privilege in the mac_privs policy. */ 156 157 /* 158 * Process-related privileges. 159 */ 160 #define PRIV_PROC_LIMIT 160 /* Exceed user process limit. */ 161 #define PRIV_PROC_SETLOGIN 161 /* Can call setlogin. */ 162 #define PRIV_PROC_SETRLIMIT 162 /* Can raise resources limits. */ 163 #define PRIV_PROC_SETLOGINCLASS 163 /* Can call setloginclass(2). */ 164 165 /* 166 * System V IPC privileges. 167 */ 168 #define PRIV_IPC_READ 170 /* Can override IPC read perm. */ 169 #define PRIV_IPC_WRITE 171 /* Can override IPC write perm. */ 170 #define PRIV_IPC_ADMIN 172 /* Can override IPC owner-only perm. */ 171 #define PRIV_IPC_MSGSIZE 173 /* Exempt IPC message queue limit. */ 172 173 /* 174 * POSIX message queue privileges. 175 */ 176 #define PRIV_MQ_ADMIN 180 /* Can override msgq owner-only perm. */ 177 178 /* 179 * Performance monitoring counter privileges. 180 */ 181 #define PRIV_PMC_MANAGE 190 /* Can administer PMC. */ 182 #define PRIV_PMC_SYSTEM 191 /* Can allocate a system-wide PMC. */ 183 184 /* 185 * Scheduling privileges. 186 */ 187 #define PRIV_SCHED_DIFFCRED 200 /* Exempt scheduling other users. */ 188 #define PRIV_SCHED_SETPRIORITY 201 /* Can set lower nice value for proc. */ 189 #define PRIV_SCHED_RTPRIO 202 /* Can set real time scheduling. */ 190 #define PRIV_SCHED_SETPOLICY 203 /* Can set scheduler policy. */ 191 #define PRIV_SCHED_SET 204 /* Can set thread scheduler. */ 192 #define PRIV_SCHED_SETPARAM 205 /* Can set thread scheduler params. */ 193 #define PRIV_SCHED_CPUSET 206 /* Can manipulate cpusets. */ 194 #define PRIV_SCHED_CPUSET_INTR 207 /* Can adjust IRQ to CPU binding. */ 195 #define PRIV_SCHED_IDPRIO 208 /* Can set idle time scheduling. */ 196 197 /* 198 * POSIX semaphore privileges. 199 */ 200 #define PRIV_SEM_WRITE 220 /* Can override sem write perm. */ 201 202 /* 203 * Signal privileges. 204 */ 205 #define PRIV_SIGNAL_DIFFCRED 230 /* Exempt signalling other users. */ 206 #define PRIV_SIGNAL_SUGID 231 /* Non-conserv signal setuid proc. */ 207 208 /* 209 * Sysctl privileges. 210 */ 211 #define PRIV_SYSCTL_DEBUG 240 /* Can invoke sysctl.debug. */ 212 #define PRIV_SYSCTL_WRITE 241 /* Can write sysctls. */ 213 #define PRIV_SYSCTL_WRITEJAIL 242 /* Can write sysctls, jail permitted. */ 214 #define PRIV_SYSCTL_MEMLOCK 243 /* Large requests are not serialized. */ 215 216 /* 217 * TTY privileges. 218 */ 219 #define PRIV_TTY_CONSOLE 250 /* Set console to tty. */ 220 #define PRIV_TTY_DRAINWAIT 251 /* Set tty drain wait time. */ 221 #define PRIV_TTY_DTRWAIT 252 /* Set DTR wait on tty. */ 222 #define PRIV_TTY_EXCLUSIVE 253 /* Override tty exclusive flag. */ 223 #define _PRIV_TTY_PRISON 254 /* Removed. */ 224 #define PRIV_TTY_STI 255 /* Simulate input on another tty. */ 225 #define PRIV_TTY_SETA 256 /* Set tty termios structure. */ 226 227 /* 228 * UFS-specific privileges. 229 */ 230 #define PRIV_UFS_EXTATTRCTL 270 /* Can configure EAs on UFS1. */ 231 #define PRIV_UFS_QUOTAOFF 271 /* quotaoff(). */ 232 #define PRIV_UFS_QUOTAON 272 /* quotaon(). */ 233 #define PRIV_UFS_SETUSE 273 /* setuse(). */ 234 235 /* 236 * ZFS-specific privileges. 237 */ 238 #define PRIV_ZFS_POOL_CONFIG 280 /* Can configure ZFS pools. */ 239 #define PRIV_ZFS_INJECT 281 /* Can inject faults in the ZFS fault 240 injection framework. */ 241 #define PRIV_ZFS_JAIL 282 /* Can attach/detach ZFS file systems 242 to/from jails. */ 243 244 /* 245 * NFS-specific privileges. 246 */ 247 #define PRIV_NFS_DAEMON 290 /* Can become the NFS daemon. */ 248 #define PRIV_NFS_LOCKD 291 /* Can become NFS lock daemon. */ 249 250 /* 251 * VFS privileges. 252 */ 253 #define PRIV_VFS_READ 310 /* Override vnode DAC read perm. */ 254 #define PRIV_VFS_WRITE 311 /* Override vnode DAC write perm. */ 255 #define PRIV_VFS_ADMIN 312 /* Override vnode DAC admin perm. */ 256 #define PRIV_VFS_EXEC 313 /* Override vnode DAC exec perm. */ 257 #define PRIV_VFS_LOOKUP 314 /* Override vnode DAC lookup perm. */ 258 #define PRIV_VFS_BLOCKRESERVE 315 /* Can use free block reserve. */ 259 #define PRIV_VFS_CHFLAGS_DEV 316 /* Can chflags() a device node. */ 260 #define PRIV_VFS_CHOWN 317 /* Can set user; group to non-member. */ 261 #define PRIV_VFS_CHROOT 318 /* chroot(). */ 262 #define PRIV_VFS_RETAINSUGID 319 /* Can retain sugid bits on change. */ 263 #define PRIV_VFS_EXCEEDQUOTA 320 /* Exempt from quota restrictions. */ 264 #define PRIV_VFS_EXTATTR_SYSTEM 321 /* Operate on system EA namespace. */ 265 #define PRIV_VFS_FCHROOT 322 /* fchroot(). */ 266 #define PRIV_VFS_FHOPEN 323 /* Can fhopen(). */ 267 #define PRIV_VFS_FHSTAT 324 /* Can fhstat(). */ 268 #define PRIV_VFS_FHSTATFS 325 /* Can fhstatfs(). */ 269 #define PRIV_VFS_GENERATION 326 /* stat() returns generation number. */ 270 #define PRIV_VFS_GETFH 327 /* Can retrieve file handles. */ 271 #define PRIV_VFS_GETQUOTA 328 /* getquota(). */ 272 #define PRIV_VFS_LINK 329 /* bsd.hardlink_check_uid */ 273 #define PRIV_VFS_MKNOD_BAD 330 /* Was: mknod() can mark bad inodes. */ 274 #define PRIV_VFS_MKNOD_DEV 331 /* Can mknod() to create dev nodes. */ 275 #define PRIV_VFS_MKNOD_WHT 332 /* Can mknod() to create whiteout. */ 276 #define PRIV_VFS_MOUNT 333 /* Can mount(). */ 277 #define PRIV_VFS_MOUNT_OWNER 334 /* Can manage other users' file systems. */ 278 #define PRIV_VFS_MOUNT_EXPORTED 335 /* Can set MNT_EXPORTED on mount. */ 279 #define PRIV_VFS_MOUNT_PERM 336 /* Override dev node perms at mount. */ 280 #define PRIV_VFS_MOUNT_SUIDDIR 337 /* Can set MNT_SUIDDIR on mount. */ 281 #define PRIV_VFS_MOUNT_NONUSER 338 /* Can perform a non-user mount. */ 282 #define PRIV_VFS_SETGID 339 /* Can setgid if not in group. */ 283 #define PRIV_VFS_SETQUOTA 340 /* setquota(). */ 284 #define PRIV_VFS_STICKYFILE 341 /* Can set sticky bit on file. */ 285 #define PRIV_VFS_SYSFLAGS 342 /* Can modify system flags. */ 286 #define PRIV_VFS_UNMOUNT 343 /* Can unmount(). */ 287 #define PRIV_VFS_STAT 344 /* Override vnode MAC stat perm. */ 288 #define PRIV_VFS_READ_DIR 345 /* Can read(2) a dirfd, needs sysctl. */ 289 290 /* 291 * Virtual memory privileges. 292 */ 293 #define PRIV_VM_MADV_PROTECT 360 /* Can set MADV_PROTECT. */ 294 #define PRIV_VM_MLOCK 361 /* Can mlock(), mlockall(). */ 295 #define PRIV_VM_MUNLOCK 362 /* Can munlock(), munlockall(). */ 296 #define PRIV_VM_SWAP_NOQUOTA 363 /* 297 * Can override the global 298 * swap reservation limits. 299 */ 300 #define PRIV_VM_SWAP_NORLIMIT 364 /* 301 * Can override the per-uid 302 * swap reservation limits. 303 */ 304 305 /* 306 * Device file system privileges. 307 */ 308 #define PRIV_DEVFS_RULE 370 /* Can manage devfs rules. */ 309 #define PRIV_DEVFS_SYMLINK 371 /* Can create symlinks in devfs. */ 310 311 /* 312 * Random number generator privileges. 313 */ 314 #define PRIV_RANDOM_RESEED 380 /* Closing /dev/random reseeds. */ 315 316 /* 317 * Network stack privileges. 318 */ 319 #define PRIV_NET_BRIDGE 390 /* Administer bridge. */ 320 #define PRIV_NET_GRE 391 /* Administer GRE. */ 321 #define _PRIV_NET_PPP 392 /* Removed. */ 322 #define _PRIV_NET_SLIP 393 /* Removed. */ 323 #define PRIV_NET_BPF 394 /* Monitor BPF. */ 324 #define PRIV_NET_RAW 395 /* Open raw socket. */ 325 #define PRIV_NET_ROUTE 396 /* Administer routing. */ 326 #define PRIV_NET_TAP 397 /* Can open tap device. */ 327 #define PRIV_NET_SETIFMTU 398 /* Set interface MTU. */ 328 #define PRIV_NET_SETIFFLAGS 399 /* Set interface flags. */ 329 #define PRIV_NET_SETIFCAP 400 /* Set interface capabilities. */ 330 #define PRIV_NET_SETIFNAME 401 /* Set interface name. */ 331 #define PRIV_NET_SETIFMETRIC 402 /* Set interface metrics. */ 332 #define PRIV_NET_SETIFPHYS 403 /* Set interface physical layer prop. */ 333 #define PRIV_NET_SETIFMAC 404 /* Set interface MAC label. */ 334 #define PRIV_NET_ADDMULTI 405 /* Add multicast addr. to ifnet. */ 335 #define PRIV_NET_DELMULTI 406 /* Delete multicast addr. from ifnet. */ 336 #define PRIV_NET_HWIOCTL 407 /* Issue hardware ioctl on ifnet. */ 337 #define PRIV_NET_SETLLADDR 408 /* Set interface link-level address. */ 338 #define PRIV_NET_ADDIFGROUP 409 /* Add new interface group. */ 339 #define PRIV_NET_DELIFGROUP 410 /* Delete interface group. */ 340 #define PRIV_NET_IFCREATE 411 /* Create cloned interface. */ 341 #define PRIV_NET_IFDESTROY 412 /* Destroy cloned interface. */ 342 #define PRIV_NET_ADDIFADDR 413 /* Add protocol addr to interface. */ 343 #define PRIV_NET_DELIFADDR 414 /* Delete protocol addr on interface. */ 344 #define PRIV_NET_LAGG 415 /* Administer lagg interface. */ 345 #define PRIV_NET_GIF 416 /* Administer gif interface. */ 346 #define PRIV_NET_SETIFVNET 417 /* Move interface to vnet. */ 347 #define PRIV_NET_SETIFDESCR 418 /* Set interface description. */ 348 #define PRIV_NET_SETIFFIB 419 /* Set interface fib. */ 349 #define PRIV_NET_VXLAN 420 /* Administer vxlan. */ 350 #define PRIV_NET_SETLANPCP 421 /* Set LAN priority. */ 351 #define PRIV_NET_SETVLANPCP PRIV_NET_SETLANPCP /* Alias Set VLAN priority */ 352 #define PRIV_NET_OVPN 422 /* Administer OpenVPN DCO. */ 353 #define PRIV_NET_ME 423 /* Administer ME interface. */ 354 #define PRIV_NET_WG 424 /* Administer WireGuard interface. */ 355 356 /* 357 * 802.11-related privileges. 358 */ 359 #define PRIV_NET80211_VAP_GETKEY 440 /* Query VAP 802.11 keys. */ 360 #define PRIV_NET80211_VAP_MANAGE 441 /* Administer 802.11 VAP */ 361 #define PRIV_NET80211_VAP_SETMAC 442 /* Set VAP MAC address */ 362 #define PRIV_NET80211_CREATE_VAP 443 /* Create a new VAP */ 363 364 /* 365 * Placeholder for AppleTalk privileges, not supported anymore. 366 */ 367 #define _PRIV_NETATALK_RESERVEDPORT 450 /* Bind low port number. */ 368 369 /* 370 * ATM privileges. 371 */ 372 #define PRIV_NETATM_CFG 460 373 #define PRIV_NETATM_ADD 461 374 #define PRIV_NETATM_DEL 462 375 #define PRIV_NETATM_SET 463 376 377 /* 378 * Bluetooth privileges. 379 */ 380 #define PRIV_NETBLUETOOTH_RAW 470 /* Open raw bluetooth socket. */ 381 382 /* 383 * Netgraph and netgraph module privileges. 384 */ 385 #define PRIV_NETGRAPH_CONTROL 480 /* Open netgraph control socket. */ 386 #define PRIV_NETGRAPH_TTY 481 /* Configure tty for netgraph. */ 387 388 /* 389 * IPv4 and IPv6 privileges. 390 */ 391 #define PRIV_NETINET_RESERVEDPORT 490 /* Bind low port number. */ 392 #define PRIV_NETINET_IPFW 491 /* Administer IPFW firewall. */ 393 #define PRIV_NETINET_DIVERT 492 /* Open IP divert socket. */ 394 #define PRIV_NETINET_PF 493 /* Administer pf firewall. */ 395 #define PRIV_NETINET_DUMMYNET 494 /* Administer DUMMYNET. */ 396 #define PRIV_NETINET_CARP 495 /* Administer CARP. */ 397 #define PRIV_NETINET_MROUTE 496 /* Administer multicast routing. */ 398 #define PRIV_NETINET_RAW 497 /* Open netinet raw socket. */ 399 #define PRIV_NETINET_GETCRED 498 /* Query netinet pcb credentials. */ 400 #define PRIV_NETINET_ADDRCTRL6 499 /* Administer IPv6 address scopes. */ 401 #define PRIV_NETINET_ND6 500 /* Administer IPv6 neighbor disc. */ 402 #define PRIV_NETINET_SCOPE6 501 /* Administer IPv6 address scopes. */ 403 #define PRIV_NETINET_ALIFETIME6 502 /* Administer IPv6 address lifetimes. */ 404 #define PRIV_NETINET_IPSEC 503 /* Administer IPSEC. */ 405 #define PRIV_NETINET_REUSEPORT 504 /* Allow [rapid] port/address reuse. */ 406 #define PRIV_NETINET_SETHDROPTS 505 /* Set certain IPv4/6 header options. */ 407 #define PRIV_NETINET_BINDANY 506 /* Allow bind to any address. */ 408 #define PRIV_NETINET_HASHKEY 507 /* Get and set hash keys for IPv4/6. */ 409 410 /* 411 * Placeholders for IPX/SPX privileges, not supported any more. 412 */ 413 #define _PRIV_NETIPX_RESERVEDPORT 520 /* Bind low port number. */ 414 #define _PRIV_NETIPX_RAW 521 /* Open netipx raw socket. */ 415 416 /* 417 * NCP privileges. 418 */ 419 #define PRIV_NETNCP 530 /* Use another user's connection. */ 420 421 /* 422 * SMB privileges. 423 */ 424 #define PRIV_NETSMB 540 /* Use another user's connection. */ 425 426 /* 427 * VM86 privileges. 428 */ 429 #define PRIV_VM86_INTCALL 550 /* Allow invoking vm86 int handlers. */ 430 431 #define PRIV_PIPEBUF 560 /* Allow to allocate reserved pipebuf 432 space */ 433 434 /* 435 * Set of reserved privilege values, which will be allocated to code as 436 * needed, in order to avoid renumbering later privileges due to insertion. 437 */ 438 #define _PRIV_RESERVED1 561 439 #define _PRIV_RESERVED2 562 440 #define _PRIV_RESERVED3 563 441 #define _PRIV_RESERVED4 564 442 #define _PRIV_RESERVED5 565 443 #define _PRIV_RESERVED6 566 444 #define _PRIV_RESERVED7 567 445 #define _PRIV_RESERVED8 568 446 #define _PRIV_RESERVED9 569 447 #define _PRIV_RESERVED10 570 448 #define _PRIV_RESERVED11 571 449 #define _PRIV_RESERVED12 572 450 #define _PRIV_RESERVED13 573 451 #define _PRIV_RESERVED14 574 452 #define _PRIV_RESERVED15 575 453 454 /* 455 * Define a set of valid privilege numbers that can be used by loadable 456 * modules that don't yet have privilege reservations. Ideally, these should 457 * not be used, since their meaning is opaque to any policies that are aware 458 * of specific privileges, such as jail, and as such may be arbitrarily 459 * denied. 460 */ 461 #define PRIV_MODULE0 600 462 #define PRIV_MODULE1 601 463 #define PRIV_MODULE2 602 464 #define PRIV_MODULE3 603 465 #define PRIV_MODULE4 604 466 #define PRIV_MODULE5 605 467 #define PRIV_MODULE6 606 468 #define PRIV_MODULE7 607 469 #define PRIV_MODULE8 608 470 #define PRIV_MODULE9 609 471 #define PRIV_MODULE10 610 472 #define PRIV_MODULE11 611 473 #define PRIV_MODULE12 612 474 #define PRIV_MODULE13 613 475 #define PRIV_MODULE14 614 476 #define PRIV_MODULE15 615 477 478 /* 479 * DDB(4) privileges. 480 */ 481 #define PRIV_DDB_CAPTURE 620 /* Allow reading of DDB capture log. */ 482 483 /* 484 * Arla/nnpfs privileges. 485 */ 486 #define PRIV_NNPFS_DEBUG 630 /* Perforn ARLA_VIOC_NNPFSDEBUG. */ 487 488 /* 489 * cpuctl(4) privileges. 490 */ 491 #define PRIV_CPUCTL_WRMSR 640 /* Write model-specific register. */ 492 #define PRIV_CPUCTL_UPDATE 641 /* Update cpu microcode. */ 493 494 /* 495 * Capi4BSD privileges. 496 */ 497 #define PRIV_C4B_RESET_CTLR 650 /* Load firmware, reset controller. */ 498 #define PRIV_C4B_TRACE 651 /* Unrestricted CAPI message tracing. */ 499 500 /* 501 * OpenAFS privileges. 502 */ 503 #define PRIV_AFS_ADMIN 660 /* Can change AFS client settings. */ 504 #define PRIV_AFS_DAEMON 661 /* Can become the AFS daemon. */ 505 506 /* 507 * Resource Limits privileges. 508 */ 509 #define PRIV_RCTL_GET_RACCT 670 510 #define PRIV_RCTL_GET_RULES 671 511 #define PRIV_RCTL_GET_LIMITS 672 512 #define PRIV_RCTL_ADD_RULE 673 513 #define PRIV_RCTL_REMOVE_RULE 674 514 515 /* 516 * mem(4) privileges. 517 */ 518 #define PRIV_KMEM_READ 680 /* Open mem/kmem for reading. */ 519 #define PRIV_KMEM_WRITE 681 /* Open mem/kmem for writing. */ 520 #define PRIV_PROC_MEM_WRITE 682 /* Writes via proc_rwmem */ 521 522 /* 523 * Kernel debugger privileges. 524 */ 525 #define PRIV_KDB_SET_BACKEND 690 /* Allow setting KDB backend. */ 526 527 /* 528 * veriexec override privileges - very rare! 529 */ 530 #define PRIV_VERIEXEC_DIRECT 700 /* Can override 'indirect' */ 531 #define PRIV_VERIEXEC_NOVERIFY 701 /* Can override O_VERIFY */ 532 #define PRIV_VERIEXEC_CONTROL 702 /* Can configure veriexec */ 533 534 /* 535 * Track end of privilege list. 536 */ 537 #define _PRIV_HIGHEST 703 538 539 /* 540 * Validate that a named privilege is known by the privilege system. Invalid 541 * privileges presented to the privilege system by a priv_check interface 542 * will result in a panic. This is only approximate due to sparse allocation 543 * of the privilege space. 544 */ 545 #define PRIV_VALID(x) ((x) > _PRIV_LOWEST && (x) < _PRIV_HIGHEST) 546 547 #ifdef _KERNEL 548 /* 549 * Privilege check interfaces, modeled after historic suser() interfaces, but 550 * with the addition of a specific privilege name. No flags are currently 551 * defined for the API. Historically, flags specified using the real uid 552 * instead of the effective uid, and whether or not the check should be 553 * allowed in jail. 554 */ 555 struct thread; 556 struct ucred; 557 int priv_check(struct thread *td, int priv); 558 int priv_check_cred(struct ucred *cred, int priv); 559 int priv_check_cred_vfs_lookup(struct ucred *cred); 560 int priv_check_cred_vfs_lookup_nomac(struct ucred *cred); 561 int priv_check_cred_vfs_generation(struct ucred *cred); 562 #endif 563 564 #endif /* !_SYS_PRIV_H_ */ 565