1139825Simp/*- 2191668Sjamie * Copyright (c) 1999 Poul-Henning Kamp. 3191673Sjamie * Copyright (c) 2009 James Gritton. 4191668Sjamie * All rights reserved. 546155Sphk * 6191668Sjamie * Redistribution and use in source and binary forms, with or without 7191668Sjamie * modification, are permitted provided that the following conditions 8191668Sjamie * are met: 9191668Sjamie * 1. Redistributions of source code must retain the above copyright 10191668Sjamie * notice, this list of conditions and the following disclaimer. 11191668Sjamie * 2. Redistributions in binary form must reproduce the above copyright 12191668Sjamie * notice, this list of conditions and the following disclaimer in the 13191668Sjamie * documentation and/or other materials provided with the distribution. 14191668Sjamie * 15191668Sjamie * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16191668Sjamie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17191668Sjamie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18191668Sjamie * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19191668Sjamie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20191668Sjamie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21191668Sjamie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22191668Sjamie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23191668Sjamie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24191668Sjamie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25191668Sjamie * SUCH DAMAGE. 26191668Sjamie * 2750477Speter * $FreeBSD$ 2846155Sphk */ 2946155Sphk 3046155Sphk#ifndef _SYS_JAIL_H_ 3146155Sphk#define _SYS_JAIL_H_ 3246155Sphk 33185435Sbz#ifdef _KERNEL 34185435Sbzstruct jail_v0 { 3551398Sphk u_int32_t version; 3651398Sphk char *path; 3751398Sphk char *hostname; 3851398Sphk u_int32_t ip_number; 3946155Sphk}; 40185435Sbz#endif 4146155Sphk 42185435Sbzstruct jail { 43185435Sbz uint32_t version; 44185435Sbz char *path; 45185435Sbz char *hostname; 46185435Sbz char *jailname; 47185435Sbz uint32_t ip4s; 48185435Sbz uint32_t ip6s; 49185435Sbz struct in_addr *ip4; 50185435Sbz struct in6_addr *ip6; 51185435Sbz}; 52190466Sjamie#define JAIL_API_VERSION 2 53185435Sbz 54185435Sbz/* 55185435Sbz * For all xprison structs, always keep the pr_version an int and 56185435Sbz * the first variable so userspace can easily distinguish them. 57185435Sbz */ 58185435Sbz#ifndef _KERNEL 59185435Sbzstruct xprison_v1 { 60185435Sbz int pr_version; 61185435Sbz int pr_id; 62185435Sbz char pr_path[MAXPATHLEN]; 63185435Sbz char pr_host[MAXHOSTNAMELEN]; 64185435Sbz u_int32_t pr_ip; 65185435Sbz}; 66185435Sbz#endif 67185435Sbz 68113275Smikestruct xprison { 69113275Smike int pr_version; 70113275Smike int pr_id; 71185435Sbz int pr_state; 72185435Sbz cpusetid_t pr_cpusetid; 73113275Smike char pr_path[MAXPATHLEN]; 74190466Sjamie char pr_host[MAXHOSTNAMELEN]; 75190466Sjamie char pr_name[MAXHOSTNAMELEN]; 76185435Sbz uint32_t pr_ip4s; 77185435Sbz uint32_t pr_ip6s; 78185435Sbz#if 0 79185435Sbz /* 80185435Sbz * sizeof(xprison) will be malloced + size needed for all 81185435Sbz * IPv4 and IPv6 addesses. Offsets are based numbers of addresses. 82185435Sbz */ 83185435Sbz struct in_addr pr_ip4[]; 84185435Sbz struct in6_addr pr_ip6[]; 85185435Sbz#endif 86113275Smike}; 87192896Sjamie#define XPRISON_VERSION 3 88113275Smike 89192896Sjamie#define PRISON_STATE_INVALID 0 90192896Sjamie#define PRISON_STATE_ALIVE 1 91192896Sjamie#define PRISON_STATE_DYING 2 92185435Sbz 93191673Sjamie/* 94191673Sjamie * Flags for jail_set and jail_get. 95191673Sjamie */ 96191673Sjamie#define JAIL_CREATE 0x01 /* Create jail if it doesn't exist */ 97191673Sjamie#define JAIL_UPDATE 0x02 /* Update parameters of existing jail */ 98191673Sjamie#define JAIL_ATTACH 0x04 /* Attach to jail upon creation */ 99191673Sjamie#define JAIL_DYING 0x08 /* Allow getting a dying jail */ 100191673Sjamie#define JAIL_SET_MASK 0x0f 101191673Sjamie#define JAIL_GET_MASK 0x08 102185435Sbz 103195870Sjamie#define JAIL_SYS_DISABLE 0 104195870Sjamie#define JAIL_SYS_NEW 1 105195870Sjamie#define JAIL_SYS_INHERIT 2 106195870Sjamie 10755205Speter#ifndef _KERNEL 10846155Sphk 109191673Sjamiestruct iovec; 110191673Sjamie 11192719Salfredint jail(struct jail *); 112191673Sjamieint jail_set(struct iovec *, unsigned int, int); 113191673Sjamieint jail_get(struct iovec *, unsigned int, int); 114113275Smikeint jail_attach(int); 115191673Sjamieint jail_remove(int); 11647249Sphk 11755205Speter#else /* _KERNEL */ 11847249Sphk 11996090Sbde#include <sys/queue.h> 120191673Sjamie#include <sys/sysctl.h> 121192895Sjamie#include <sys/lock.h> 122192895Sjamie#include <sys/mutex.h> 123124882Srwatson#include <sys/_task.h> 12487275Srwatson 125179881Sdelphij#define JAIL_MAX 999999 126179881Sdelphij 12746155Sphk#ifdef MALLOC_DECLARE 12846155SphkMALLOC_DECLARE(M_PRISON); 12946155Sphk#endif 130143869Spjd#endif /* _KERNEL */ 13146155Sphk 132185029Spjd#if defined(_KERNEL) || defined(_WANT_PRISON) 133185029Spjd 134185029Spjd#include <sys/osd.h> 135185029Spjd 136193066Sjamie#define HOSTUUIDLEN 64 137280632Sian#define OSRELEASELEN 32 138193066Sjamie 139220137Straszstruct racct; 140221362Straszstruct prison_racct; 141220137Strasz 14246155Sphk/* 14347249Sphk * This structure describes a prison. It is pointed to by all struct 14472786Srwatson * ucreds's of the inmates. pr_ref keeps track of them and is used to 14546155Sphk * delete the struture when the last inmate is dead. 14672786Srwatson * 14787275Srwatson * Lock key: 148168401Spjd * (a) allprison_lock 149138045Spjd * (p) locked by pr_mtx 15087275Srwatson * (c) set only during creation before the structure is shared, no mutex 15187275Srwatson * required to read 15246155Sphk */ 15346155Sphkstruct prison { 154191673Sjamie TAILQ_ENTRY(prison) pr_list; /* (a) all prisons */ 155113275Smike int pr_id; /* (c) prison id */ 15687275Srwatson int pr_ref; /* (p) refcount */ 157191673Sjamie int pr_uref; /* (p) user (alive) refcount */ 158191673Sjamie unsigned pr_flags; /* (p) PR_* flags */ 159194842Sjamie LIST_HEAD(, prison) pr_children; /* (a) list of child jails */ 160194842Sjamie LIST_ENTRY(prison) pr_sibling; /* (a) next in parent's list */ 161192895Sjamie struct prison *pr_parent; /* (c) containing jail */ 162194842Sjamie struct mtx pr_mtx; 163298833Sjamie struct task pr_task; /* (c) destroy task */ 164185029Spjd struct osd pr_osd; /* (p) additional data */ 165194842Sjamie struct cpuset *pr_cpuset; /* (p) cpuset */ 166194842Sjamie struct vnet *pr_vnet; /* (c) network stack */ 167194842Sjamie struct vnode *pr_root; /* (c) vnode to rdir */ 168191673Sjamie int pr_ip4s; /* (p) number of v4 IPs */ 169194842Sjamie int pr_ip6s; /* (p) number of v6 IPs */ 170191673Sjamie struct in_addr *pr_ip4; /* (p) v4 IPs of jail */ 171191673Sjamie struct in6_addr *pr_ip6; /* (p) v6 IPs of jail */ 172221362Strasz struct prison_racct *pr_prison_racct; /* (c) racct jail proxy */ 173220137Strasz void *pr_sparep[3]; 174194762Sjamie int pr_childcount; /* (a) number of child jails */ 175194842Sjamie int pr_childmax; /* (p) maximum child jails */ 176192895Sjamie unsigned pr_allow; /* (p) PR_ALLOW_* flags */ 177194842Sjamie int pr_securelevel; /* (p) securelevel */ 178192895Sjamie int pr_enforce_statfs; /* (p) statfs permission */ 179231267Smm int pr_devfs_rsnum; /* (p) devfs ruleset */ 180280632Sian int pr_spare[3]; 181280632Sian int pr_osreldate; /* (c) kern.osreldate value */ 182194842Sjamie unsigned long pr_hostid; /* (p) jail hostid */ 183194842Sjamie char pr_name[MAXHOSTNAMELEN]; /* (p) admin jail name */ 184194842Sjamie char pr_path[MAXPATHLEN]; /* (c) chroot path */ 185194842Sjamie char pr_hostname[MAXHOSTNAMELEN]; /* (p) jail hostname */ 186194118Sjamie char pr_domainname[MAXHOSTNAMELEN]; /* (p) jail domainname */ 187194118Sjamie char pr_hostuuid[HOSTUUIDLEN]; /* (p) jail hostuuid */ 188280632Sian char pr_osrelease[OSRELEASELEN]; /* (c) kern.osrelease value */ 18946155Sphk}; 190221362Strasz 191221362Straszstruct prison_racct { 192221362Strasz LIST_ENTRY(prison_racct) prr_next; 193221362Strasz char prr_name[MAXHOSTNAMELEN]; 194221362Strasz u_int prr_refcount; 195221362Strasz struct racct *prr_racct; 196221362Strasz}; 197143869Spjd#endif /* _KERNEL || _WANT_PRISON */ 19846155Sphk 199143869Spjd#ifdef _KERNEL 200192895Sjamie/* Flag bits set via options */ 201191673Sjamie#define PR_PERSIST 0x00000001 /* Can exist without processes */ 202193066Sjamie#define PR_HOST 0x00000002 /* Virtualize hostname et al */ 203195870Sjamie#define PR_IP4_USER 0x00000004 /* Restrict IPv4 addresses */ 204195870Sjamie#define PR_IP6_USER 0x00000008 /* Restrict IPv6 addresses */ 205194251Sjamie#define PR_VNET 0x00000010 /* Virtual network stack */ 206195870Sjamie#define PR_IP4_DISABLE 0x00000020 /* Disable IPv4 */ 207195870Sjamie#define PR_IP6_DISABLE 0x00000040 /* Disable IPv6 */ 208202468Sbz#define PR_IP4_SADDRSEL 0x00000080 /* Do IPv4 src addr sel. or use the */ 209202468Sbz /* primary jail address. */ 210202468Sbz#define PR_IP6_SADDRSEL 0x00000100 /* Do IPv6 src addr sel. or use the */ 211202468Sbz /* primary jail address. */ 212192895Sjamie 213192895Sjamie/* Internal flag bits */ 214195870Sjamie#define PR_IP4 0x02000000 /* IPv4 restricted or disabled */ 215195870Sjamie /* by this jail or an ancestor */ 216195870Sjamie#define PR_IP6 0x04000000 /* IPv6 restricted or disabled */ 217195870Sjamie /* by this jail or an ancestor */ 218191673Sjamie 219192895Sjamie/* Flags for pr_allow */ 220192895Sjamie#define PR_ALLOW_SET_HOSTNAME 0x0001 221192895Sjamie#define PR_ALLOW_SYSVIPC 0x0002 222192895Sjamie#define PR_ALLOW_RAW_SOCKETS 0x0004 223192895Sjamie#define PR_ALLOW_CHFLAGS 0x0008 224192895Sjamie#define PR_ALLOW_MOUNT 0x0010 225192895Sjamie#define PR_ALLOW_QUOTAS 0x0020 226194762Sjamie#define PR_ALLOW_SOCKET_AF 0x0040 227232059Smm#define PR_ALLOW_MOUNT_DEVFS 0x0080 228232059Smm#define PR_ALLOW_MOUNT_NULLFS 0x0100 229232186Smm#define PR_ALLOW_MOUNT_ZFS 0x0200 230232278Smm#define PR_ALLOW_MOUNT_PROCFS 0x0400 231254741Sdelphij#define PR_ALLOW_MOUNT_TMPFS 0x0800 232277985Sjamie#define PR_ALLOW_MOUNT_FDESCFS 0x1000 233295951Saraujo#define PR_ALLOW_MOUNT_LINPROCFS 0x2000 234295951Saraujo#define PR_ALLOW_MOUNT_LINSYSFS 0x4000 235295951Saraujo#define PR_ALLOW_ALL 0x7fff 236192895Sjamie 237191673Sjamie/* 238191673Sjamie * OSD methods 239191673Sjamie */ 240191673Sjamie#define PR_METHOD_CREATE 0 241191673Sjamie#define PR_METHOD_GET 1 242191673Sjamie#define PR_METHOD_SET 2 243191673Sjamie#define PR_METHOD_CHECK 3 244191673Sjamie#define PR_METHOD_ATTACH 4 245298833Sjamie#define PR_METHOD_REMOVE 5 246298833Sjamie#define PR_MAXMETHOD 6 247191673Sjamie 248191673Sjamie/* 249192895Sjamie * Lock/unlock a prison. 250192895Sjamie * XXX These exist not so much for general convenience, but to be useable in 251192895Sjamie * the FOREACH_PRISON_DESCENDANT_LOCKED macro which can't handle them in 252192895Sjamie * non-function form as currently defined. 25357119Srwatson */ 254192895Sjamiestatic __inline void 255192895Sjamieprison_lock(struct prison *pr) 256192895Sjamie{ 25757119Srwatson 258192895Sjamie mtx_lock(&pr->pr_mtx); 259192895Sjamie} 260192895Sjamie 261192895Sjamiestatic __inline void 262192895Sjamieprison_unlock(struct prison *pr) 263192895Sjamie{ 264192895Sjamie 265192895Sjamie mtx_unlock(&pr->pr_mtx); 266192895Sjamie} 267192895Sjamie 268192895Sjamie/* Traverse a prison's immediate children. */ 269192895Sjamie#define FOREACH_PRISON_CHILD(ppr, cpr) \ 270192895Sjamie LIST_FOREACH(cpr, &(ppr)->pr_children, pr_sibling) 271192895Sjamie 272192895Sjamie/* 273192895Sjamie * Preorder traversal of all of a prison's descendants. 274192895Sjamie * This ugly loop allows the macro to be followed by a single block 275192895Sjamie * as expected in a looping primitive. 276192895Sjamie */ 277192895Sjamie#define FOREACH_PRISON_DESCENDANT(ppr, cpr, descend) \ 278192895Sjamie for ((cpr) = (ppr), (descend) = 1; \ 279192895Sjamie ((cpr) = (((descend) && !LIST_EMPTY(&(cpr)->pr_children)) \ 280192895Sjamie ? LIST_FIRST(&(cpr)->pr_children) \ 281192895Sjamie : ((cpr) == (ppr) \ 282192895Sjamie ? NULL \ 283192895Sjamie : (((descend) = LIST_NEXT(cpr, pr_sibling) != NULL) \ 284192895Sjamie ? LIST_NEXT(cpr, pr_sibling) \ 285192895Sjamie : (cpr)->pr_parent))));) \ 286192895Sjamie if (!(descend)) \ 287192895Sjamie ; \ 288192895Sjamie else 289192895Sjamie 290192895Sjamie/* 291192895Sjamie * As above, but lock descendants on the way down and unlock on the way up. 292192895Sjamie */ 293192895Sjamie#define FOREACH_PRISON_DESCENDANT_LOCKED(ppr, cpr, descend) \ 294192895Sjamie for ((cpr) = (ppr), (descend) = 1; \ 295192895Sjamie ((cpr) = (((descend) && !LIST_EMPTY(&(cpr)->pr_children)) \ 296192895Sjamie ? LIST_FIRST(&(cpr)->pr_children) \ 297192895Sjamie : ((cpr) == (ppr) \ 298192895Sjamie ? NULL \ 299192895Sjamie : ((prison_unlock(cpr), \ 300192895Sjamie (descend) = LIST_NEXT(cpr, pr_sibling) != NULL) \ 301192895Sjamie ? LIST_NEXT(cpr, pr_sibling) \ 302192895Sjamie : (cpr)->pr_parent))));) \ 303192895Sjamie if ((descend) ? (prison_lock(cpr), 0) : 1) \ 304192895Sjamie ; \ 305192895Sjamie else 306192895Sjamie 307192895Sjamie/* 308194762Sjamie * As above, but also keep track of the level descended to. 309194762Sjamie */ 310194762Sjamie#define FOREACH_PRISON_DESCENDANT_LOCKED_LEVEL(ppr, cpr, descend, level)\ 311194762Sjamie for ((cpr) = (ppr), (descend) = 1, (level) = 0; \ 312194762Sjamie ((cpr) = (((descend) && !LIST_EMPTY(&(cpr)->pr_children)) \ 313194762Sjamie ? (level++, LIST_FIRST(&(cpr)->pr_children)) \ 314194762Sjamie : ((cpr) == (ppr) \ 315194762Sjamie ? NULL \ 316194762Sjamie : ((prison_unlock(cpr), \ 317194762Sjamie (descend) = LIST_NEXT(cpr, pr_sibling) != NULL) \ 318194762Sjamie ? LIST_NEXT(cpr, pr_sibling) \ 319194762Sjamie : (level--, (cpr)->pr_parent)))));) \ 320194762Sjamie if ((descend) ? (prison_lock(cpr), 0) : 1) \ 321194762Sjamie ; \ 322194762Sjamie else 323194762Sjamie 324194762Sjamie/* 325192895Sjamie * Attributes of the physical system, and the root of the jail tree. 326192895Sjamie */ 327192895Sjamieextern struct prison prison0; 328192895Sjamie 329191673SjamieTAILQ_HEAD(prisonlist, prison); 330113275Smikeextern struct prisonlist allprison; 331168401Spjdextern struct sx allprison_lock; 332113275Smike 33372786Srwatson/* 334191673Sjamie * Sysctls to describe jail parameters. 335191673Sjamie */ 336191673SjamieSYSCTL_DECL(_security_jail_param); 337191673Sjamie 338191673Sjamie#define SYSCTL_JAIL_PARAM(module, param, type, fmt, descr) \ 339191673Sjamie SYSCTL_PROC(_security_jail_param ## module, OID_AUTO, param, \ 340191673Sjamie (type) | CTLFLAG_MPSAFE, NULL, 0, sysctl_jail_param, fmt, descr) 341191673Sjamie#define SYSCTL_JAIL_PARAM_STRING(module, param, access, len, descr) \ 342191673Sjamie SYSCTL_PROC(_security_jail_param ## module, OID_AUTO, param, \ 343191673Sjamie CTLTYPE_STRING | CTLFLAG_MPSAFE | (access), NULL, len, \ 344191673Sjamie sysctl_jail_param, "A", descr) 345191673Sjamie#define SYSCTL_JAIL_PARAM_STRUCT(module, param, access, len, fmt, descr)\ 346191673Sjamie SYSCTL_PROC(_security_jail_param ## module, OID_AUTO, param, \ 347191673Sjamie CTLTYPE_STRUCT | CTLFLAG_MPSAFE | (access), NULL, len, \ 348191673Sjamie sysctl_jail_param, fmt, descr) 349191673Sjamie#define SYSCTL_JAIL_PARAM_NODE(module, descr) \ 350195870Sjamie SYSCTL_NODE(_security_jail_param, OID_AUTO, module, 0, 0, descr) 351232059Smm#define SYSCTL_JAIL_PARAM_SUBNODE(parent, module, descr) \ 352232059Smm SYSCTL_NODE(_security_jail_param_##parent, OID_AUTO, module, 0, 0, descr) 353195870Sjamie#define SYSCTL_JAIL_PARAM_SYS_NODE(module, access, descr) \ 354195870Sjamie SYSCTL_JAIL_PARAM_NODE(module, descr); \ 355195870Sjamie SYSCTL_JAIL_PARAM(_##module, , CTLTYPE_INT | (access), "E,jailsys", \ 356195870Sjamie descr) 357191673Sjamie 358191673Sjamie/* 35972786Srwatson * Kernel support functions for jail(). 36072786Srwatson */ 36172786Srwatsonstruct ucred; 362125804Srwatsonstruct mount; 36372786Srwatsonstruct sockaddr; 364147185Spjdstruct statfs; 36592719Salfredint jailed(struct ucred *cred); 366200473Sbzint jailed_without_vnet(struct ucred *); 367194090Sjamievoid getcredhostname(struct ucred *, char *, size_t); 368194090Sjamievoid getcreddomainname(struct ucred *, char *, size_t); 369194090Sjamievoid getcredhostuuid(struct ucred *, char *, size_t); 370194090Sjamievoid getcredhostid(struct ucred *, unsigned long *); 371280632Sianvoid prison0_init(void); 372192895Sjamieint prison_allow(struct ucred *, unsigned); 37392719Salfredint prison_check(struct ucred *cred1, struct ucred *cred2); 374196176Sbzint prison_owns_vnet(struct ucred *); 375147185Spjdint prison_canseemount(struct ucred *cred, struct mount *mp); 376147185Spjdvoid prison_enforce_statfs(struct ucred *cred, struct mount *mp, 377147185Spjd struct statfs *sp); 378168399Spjdstruct prison *prison_find(int prid); 379192895Sjamiestruct prison *prison_find_child(struct prison *, int); 380192895Sjamiestruct prison *prison_find_name(struct prison *, const char *); 381192895Sjamieint prison_flag(struct ucred *, unsigned); 38292719Salfredvoid prison_free(struct prison *pr); 383185029Spjdvoid prison_free_locked(struct prison *pr); 38492719Salfredvoid prison_hold(struct prison *pr); 385185029Spjdvoid prison_hold_locked(struct prison *pr); 386185435Sbzvoid prison_proc_hold(struct prison *); 387185435Sbzvoid prison_proc_free(struct prison *); 388192895Sjamieint prison_ischild(struct prison *, struct prison *); 389192895Sjamieint prison_equal_ip4(struct prison *, struct prison *); 390187684Sbzint prison_get_ip4(struct ucred *cred, struct in_addr *ia); 391185435Sbzint prison_local_ip4(struct ucred *cred, struct in_addr *ia); 392185435Sbzint prison_remote_ip4(struct ucred *cred, struct in_addr *ia); 393185435Sbzint prison_check_ip4(struct ucred *cred, struct in_addr *ia); 394202468Sbzint prison_saddrsel_ip4(struct ucred *, struct in_addr *); 395185435Sbz#ifdef INET6 396192895Sjamieint prison_equal_ip6(struct prison *, struct prison *); 397187684Sbzint prison_get_ip6(struct ucred *, struct in6_addr *); 398185435Sbzint prison_local_ip6(struct ucred *, struct in6_addr *, int); 399185435Sbzint prison_remote_ip6(struct ucred *, struct in6_addr *); 400185435Sbzint prison_check_ip6(struct ucred *, struct in6_addr *); 401202468Sbzint prison_saddrsel_ip6(struct ucred *, struct in6_addr *); 402185435Sbz#endif 403188146Sjamieint prison_check_af(struct ucred *cred, int af); 40492719Salfredint prison_if(struct ucred *cred, struct sockaddr *sa); 405192895Sjamiechar *prison_name(struct prison *, struct prison *); 406164032Srwatsonint prison_priv_check(struct ucred *cred, int priv); 407219819Sjeffint sysctl_jail_param(SYSCTL_HANDLER_ARGS); 408220137Straszvoid prison_racct_foreach(void (*callback)(struct racct *racct, 409220137Strasz void *arg2, void *arg3), void *arg2, void *arg3); 410221362Straszstruct prison_racct *prison_racct_find(const char *name); 411221362Straszvoid prison_racct_hold(struct prison_racct *prr); 412221362Straszvoid prison_racct_free(struct prison_racct *prr); 41372786Srwatson 414143869Spjd#endif /* _KERNEL */ 41546155Sphk#endif /* !_SYS_JAIL_H_ */ 416