jailp.h revision 214649
1214117Sjamie/*- 2214117Sjamie * Copyright (c) 2010 James Gritton. 3214117Sjamie * All rights reserved. 4214117Sjamie * 5214117Sjamie * Redistribution and use in source and binary forms, with or without 6214117Sjamie * modification, are permitted provided that the following conditions 7214117Sjamie * are met: 8214117Sjamie * 1. Redistributions of source code must retain the above copyright 9214117Sjamie * notice, this list of conditions and the following disclaimer. 10214117Sjamie * 2. Redistributions in binary form must reproduce the above copyright 11214117Sjamie * notice, this list of conditions and the following disclaimer in the 12214117Sjamie * documentation and/or other materials provided with the distribution. 13214117Sjamie * 14214117Sjamie * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15214117Sjamie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16214117Sjamie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17214117Sjamie * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18214117Sjamie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19214117Sjamie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20214117Sjamie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21214117Sjamie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22214117Sjamie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23214117Sjamie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24214117Sjamie * SUCH DAMAGE. 25214117Sjamie * 26214117Sjamie * $FreeBSD: projects/jailconf/usr.sbin/jail/jailp.h 214649 2010-11-01 21:37:28Z jamie $ 27214117Sjamie */ 28214117Sjamie 29214117Sjamie#include <sys/param.h> 30214117Sjamie#include <sys/types.h> 31214117Sjamie#include <sys/jail.h> 32214117Sjamie#include <sys/queue.h> 33214117Sjamie#include <sys/time.h> 34214117Sjamie 35214117Sjamie#include <jail.h> 36214117Sjamie 37214117Sjamie#define CONF_FILE "/etc/jail.conf" 38214117Sjamie 39214117Sjamie#define DEP_FROM 0 40214117Sjamie#define DEP_TO 1 41214117Sjamie 42214117Sjamie#define DF_SEEN 0x01 /* Dependency has been followed */ 43214117Sjamie#define DF_LIGHT 0x02 /* Implied dependency on jail existence only */ 44214117Sjamie#define DF_NOFAIL 0x04 /* Don't propigate failed jails */ 45214117Sjamie 46214117Sjamie#define PF_VAR 0x01 /* This is a variable, not a true parameter */ 47214117Sjamie#define PF_APPEND 0x02 /* Append to existing parameter list */ 48214117Sjamie#define PF_BAD 0x04 /* Unable to resolve parameter value */ 49214117Sjamie#define PF_INTERNAL 0x08 /* Internal parameter, not passed to kernel */ 50214117Sjamie#define PF_BOOL 0x10 /* Boolean parameter */ 51214117Sjamie#define PF_INT 0x20 /* Integer parameter */ 52214423Sjamie#define PF_CONV 0x40 /* Parameter duplicated in converted form */ 53214117Sjamie 54214117Sjamie#define JF_START 0x0001 /* -c */ 55214117Sjamie#define JF_SET 0x0002 /* -m */ 56214117Sjamie#define JF_STOP 0x0004 /* -r */ 57214117Sjamie#define JF_DEPEND 0x0008 /* Operation required by dependency */ 58214117Sjamie#define JF_WILD 0x0010 /* Not specified on the command line */ 59214117Sjamie#define JF_FAILED 0x0020 /* Operation failed */ 60214649Sjamie#define JF_PARAMS 0x0040 /* Parameters checked and imported */ 61214649Sjamie#define JF_RDTUN 0x0080 /* Create-only parameter check has been done */ 62214649Sjamie#define JF_IFUP 0x0100 /* IP addresses have been configured */ 63214649Sjamie#define JF_MOUNTED 0x0200 /* Filesystems have been mounted */ 64214649Sjamie#define JF_PERSIST 0x0400 /* Jail is temporarily persistent */ 65214649Sjamie#define JF_TIMEOUT 0x0800 /* A command (or process kill) timed out */ 66214649Sjamie#define JF_RUNQ 0x1000 /* Jail was in the run qeueue */ 67214649Sjamie#define JF_BACKGROUND 0x2000 /* Command was run in the background */ 68214117Sjamie 69214117Sjamie#define JF_OP_MASK (JF_START | JF_SET | JF_STOP) 70214117Sjamie#define JF_RESTART (JF_START | JF_STOP) 71214117Sjamie#define JF_START_SET (JF_START | JF_SET) 72214117Sjamie#define JF_SET_RESTART (JF_SET | JF_STOP) 73214117Sjamie#define JF_START_SET_RESTART (JF_START | JF_SET | JF_STOP) 74214117Sjamie#define JF_DO_STOP(js) (((js) & (JF_SET | JF_STOP)) == JF_STOP) 75214117Sjamie 76214117Sjamieenum intparam { 77214117Sjamie IP_ALLOW_DYING = 1, /* Allow making changes to a dying jail */ 78214117Sjamie IP_COMMAND, /* Command run inside jail at creation */ 79214117Sjamie IP_DEPEND, /* Jail starts after (stops before) another */ 80214117Sjamie IP_EXEC_CLEAN, /* Run commands in a clean environment */ 81214117Sjamie IP_EXEC_CONSOLELOG, /* Redirect optput for commands run in jail */ 82214117Sjamie IP_EXEC_FIB, /* Run jailed commands with this FIB */ 83214117Sjamie IP_EXEC_JAIL_USER, /* Run jailed commands as this user */ 84214117Sjamie IP_EXEC_POSTSTART, /* Commands run outside jail after creating */ 85214117Sjamie IP_EXEC_POSTSTOP, /* Commands run outside jail after removing */ 86214117Sjamie IP_EXEC_PRESTART, /* Commands run outside jail before creating */ 87214117Sjamie IP_EXEC_PRESTOP, /* Commands run outside jail before removing */ 88214117Sjamie IP_EXEC_START, /* Commands run inside jail on creation */ 89214117Sjamie IP_EXEC_STOP, /* Commands run inside jail on removal */ 90214117Sjamie IP_EXEC_SYSTEM_JAIL_USER,/* Get jail_user from system passwd file */ 91214117Sjamie IP_EXEC_SYSTEM_USER, /* Run non-jailed commands as this user */ 92214117Sjamie IP_EXEC_TIMEOUT, /* Time to wait for a command to complete */ 93214117Sjamie IP_INTERFACE, /* Add IP addresses to this interface */ 94214117Sjamie IP_IP_HOSTNAME, /* Get jail IP address(es) from hostname */ 95214117Sjamie IP_MOUNT, /* Mount points in fstab(5) form */ 96214117Sjamie IP_MOUNT_DEVFS, /* Mount /dev under prison root */ 97214117Sjamie IP_MOUNT_DEVFS_RULESET, /* Ruleset for the devfs mount */ 98214423Sjamie IP_MOUNT_FSTAB, /* A standard fstab(5) file */ 99214117Sjamie IP_STOP_TIMEOUT, /* Time to wait after sending SIGTERM */ 100214423Sjamie IP_VNET_INTERFACE, /* Assign interface(s) to vnet jail */ 101214117Sjamie IP__IP4_IFADDR, /* Copy of ip4.addr with interface/netmask */ 102214117Sjamie#ifdef INET6 103214117Sjamie IP__IP6_IFADDR, /* Copy of ip6.addr with interface/prefixlen */ 104214117Sjamie#endif 105214423Sjamie KP_ALLOW_CHFLAGS, 106214423Sjamie KP_ALLOW_MOUNT, 107214423Sjamie KP_ALLOW_RAW_SOCKETS, 108214423Sjamie KP_ALLOW_SET_HOSTNAME, 109214423Sjamie KP_ALLOW_SOCKET_AF, 110214423Sjamie KP_ALLOW_SYSVIPC, 111214423Sjamie KP_ENFORCE_STATFS, 112214423Sjamie KP_HOST_HOSTNAME, 113214117Sjamie KP_IP4_ADDR, 114214117Sjamie#ifdef INET6 115214117Sjamie KP_IP6_ADDR, 116214117Sjamie#endif 117214117Sjamie KP_JID, 118214117Sjamie KP_NAME, 119214117Sjamie KP_PATH, 120214117Sjamie KP_PERSIST, 121214423Sjamie KP_SECURELEVEL, 122214117Sjamie KP_VNET, 123214117Sjamie IP_NPARAM 124214117Sjamie}; 125214117Sjamie 126214117SjamieSTAILQ_HEAD(cfvars, cfvar); 127214117Sjamie 128214117Sjamiestruct cfvar { 129214117Sjamie STAILQ_ENTRY(cfvar) tq; 130214117Sjamie char *name; 131214117Sjamie size_t pos; 132214117Sjamie}; 133214117Sjamie 134214117SjamieSTAILQ_HEAD(cfstrings, cfstring); 135214117Sjamie 136214117Sjamiestruct cfstring { 137214117Sjamie STAILQ_ENTRY(cfstring) tq; 138214117Sjamie char *s; 139214117Sjamie size_t len; 140214117Sjamie struct cfvars vars; 141214117Sjamie}; 142214117Sjamie 143214117SjamieTAILQ_HEAD(cfparams, cfparam); 144214117Sjamie 145214117Sjamiestruct cfparam { 146214117Sjamie TAILQ_ENTRY(cfparam) tq; 147214117Sjamie char *name; 148214117Sjamie struct cfstrings val; 149214117Sjamie unsigned flags; 150214117Sjamie int gen; 151214117Sjamie}; 152214117Sjamie 153214117SjamieTAILQ_HEAD(cfjails, cfjail); 154214117SjamieSTAILQ_HEAD(cfdepends, cfdepend); 155214117Sjamie 156214117Sjamiestruct cfjail { 157214117Sjamie TAILQ_ENTRY(cfjail) tq; 158214117Sjamie char *name; 159214117Sjamie char *comline; 160214117Sjamie struct cfparams params; 161214117Sjamie struct cfdepends dep[2]; 162214117Sjamie struct cfjails *queue; 163214117Sjamie struct cfparam *intparams[IP_NPARAM]; 164214117Sjamie struct cfstring *comstring; 165214117Sjamie struct jailparam *jp; 166214117Sjamie struct timespec timeout; 167214117Sjamie enum intparam comparam; 168214117Sjamie unsigned flags; 169214117Sjamie int jid; 170214117Sjamie int seq; 171214117Sjamie int pstatus; 172214117Sjamie int ndeps; 173214117Sjamie int njp; 174214117Sjamie int nprocs; 175214117Sjamie}; 176214117Sjamie 177214117Sjamiestruct cfdepend { 178214117Sjamie STAILQ_ENTRY(cfdepend) tq[2]; 179214117Sjamie struct cfjail *j[2]; 180214117Sjamie unsigned flags; 181214117Sjamie}; 182214117Sjamie 183214117Sjamieextern void *emalloc(size_t); 184214117Sjamieextern void *erealloc(void *, size_t); 185214117Sjamieextern char *estrdup(const char *); 186214117Sjamieextern void failed(struct cfjail *j); 187214117Sjamieextern void jail_note(const struct cfjail *j, const char *fmt, ...); 188214117Sjamieextern void jail_warnx(const struct cfjail *j, const char *fmt, ...); 189214117Sjamie 190214117Sjamieextern int run_command(struct cfjail *j, int *plimit, enum intparam comparam); 191214117Sjamieextern int finish_command(struct cfjail *j, int *plimit); 192214117Sjamieextern struct cfjail *next_proc(int nonblock); 193214117Sjamieextern int term_procs(struct cfjail *j); 194214117Sjamie 195214117Sjamieextern void load_config(void); 196214117Sjamieextern struct cfjail *add_jail(void); 197214117Sjamieextern void add_param(struct cfjail *j, const struct cfparam *p, 198214423Sjamie enum intparam ipnum, const char *value); 199214117Sjamieextern int bool_param(const struct cfparam *p); 200214117Sjamieextern int int_param(const struct cfparam *p, int *ip); 201214117Sjamieextern const char *string_param(const struct cfparam *p); 202214649Sjamieextern int check_intparams(struct cfjail *j); 203214117Sjamieextern int import_params(struct cfjail *j); 204214117Sjamieextern int equalopts(const char *opt1, const char *opt2); 205214117Sjamieextern int wild_jail_name(const char *wname); 206214117Sjamieextern int wild_jail_match(const char *jname, const char *wname); 207214117Sjamie 208214117Sjamieextern void dep_setup(int docf); 209214117Sjamieextern int dep_check(struct cfjail *j); 210214117Sjamieextern void dep_done(struct cfjail *j, unsigned flags); 211214117Sjamieextern void dep_reset(struct cfjail *j); 212214117Sjamieextern struct cfjail *next_jail(void); 213214117Sjamieextern int start_state(const char *target, unsigned state, int running); 214214117Sjamieextern void requeue(struct cfjail *j, struct cfjails *queue); 215214117Sjamie 216214117Sjamieextern void yyerror(const char *); 217214117Sjamieextern int yylex(void); 218214117Sjamieextern int yyparse(void); 219214117Sjamie 220214117Sjamieextern struct cfjails cfjails; 221214117Sjamieextern struct cfjails ready; 222214117Sjamieextern struct cfjails waiting; 223214117Sjamieextern const char *cfname; 224214117Sjamieextern int verbose; 225