vserver.h

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00001 /* $Id: vserver.h 2705 2008-03-17 08:55:11Z dhozac $
00002 
00003 *  Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
00004 *   
00005 *  This program is free software; you can redistribute it and/or modify
00006 *  it under the terms of the GNU General Public License as published by
00007 *  the Free Software Foundation; either version 2, or (at your option)
00008 *  any later version.
00009 *   
00010 *  This program is distributed in the hope that it will be useful,
00011 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 *  GNU General Public License for more details.
00014 *   
00015 *  You should have received a copy of the GNU General Public License
00016 *  along with this program; if not, write to the Free Software
00017 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018 */
00019 
00024 #ifndef H_VSERVER_SYSCALL_H
00025 #define H_VSERVER_SYSCALL_H
00026 
00027 #include <stdint.h>
00028 #include <stdlib.h>
00029 #include <stdbool.h>
00030 #include <sys/types.h>
00031 #include <sched.h>
00032 #include <netinet/in.h>
00033 
00034 #ifndef IS_DOXYGEN
00035 #if defined(__GNUC__)
00036 #  define VC_ATTR_UNUSED                __attribute__((__unused__))
00037 #  define VC_ATTR_NORETURN              __attribute__((__noreturn__))
00038 #  define VC_ATTR_CONST                 __attribute__((__const__))
00039 #  define VC_ATTR_DEPRECATED            __attribute__((__deprecated__))
00040 #  if __GNUC__*0x10000 + __GNUC_MINOR__*0x100 + __GNUC_PATCHLEVEL__ >= 0x30300
00041 #    define VC_ATTR_NONNULL(ARGS)       __attribute__((__nonnull__ ARGS))
00042 #    define VC_ATTR_ALWAYSINLINE        __attribute__((__always_inline__))
00043 #  else
00044 #    define VC_ATTR_NONNULL(ARGS)
00045 #    define VC_ATTR_ALWAYSINLINE
00046 #  endif
00047 #  if __GNUC__*0x10000 + __GNUC_MINOR__*0x100 + __GNUC_PATCHLEVEL__ >= 0x30303
00048 #    define VC_ATTR_PURE                __attribute__((__pure__))
00049 #  else
00050 #    define VC_ATTR_PURE
00051 #  endif
00052 #else
00053 #  define VC_ATTR_NONNULL(ARGS)
00054 #  define VC_ATTR_UNUSED
00055 #  define VC_ATTR_NORETURN
00056 #  define VC_ATTR_ALWAYSINLINE
00057 #  define VC_ATTR_DEPRECATED
00058 #  define VC_ATTR_PURE
00059 #  define VC_ATTR_CONST
00060 #endif
00061 #endif  // IS_DOXYGEN
00062 
00064 #define VC_NOCTX                ((xid_t)(-1))
00065 #define VC_NOXID                ((xid_t)(-1))
00066 
00067 #define VC_DYNAMIC_XID          ((xid_t)(-1))
00068 
00069 #define VC_SAMECTX              ((xid_t)(-2))
00070 
00071 #define VC_NONID                ((nid_t)(-1))
00072 #define VC_DYNAMIC_NID          ((nid_t)(-1))
00073 
00074 #define VC_LIM_INFINITY         (~0ULL)
00075 #define VC_LIM_KEEP             (~1ULL)
00076 
00077 #define VC_CDLIM_UNSET          (0U)
00078 #define VC_CDLIM_INFINITY       (~0U)
00079 #define VC_CDLIM_KEEP           (~1U)
00080   
00081 #ifndef S_CTX_INFO_LOCK
00082 #  define S_CTX_INFO_LOCK       1
00083 #endif
00084 
00085 #ifndef S_CTX_INFO_SCHED
00086 #  define S_CTX_INFO_SCHED      2
00087 #endif
00088 
00089 #ifndef S_CTX_INFO_NPROC
00090 #  define S_CTX_INFO_NPROC      4
00091 #endif
00092 
00093 #ifndef S_CTX_INFO_PRIVATE
00094 #  define S_CTX_INFO_PRIVATE    8
00095 #endif
00096 
00097 #ifndef S_CTX_INFO_INIT
00098 #  define S_CTX_INFO_INIT       16
00099 #endif
00100 
00101 #ifndef S_CTX_INFO_HIDEINFO
00102 #  define S_CTX_INFO_HIDEINFO   32
00103 #endif
00104 
00105 #ifndef S_CTX_INFO_ULIMIT
00106 #  define S_CTX_INFO_ULIMIT     64
00107 #endif
00108 
00109 #ifndef S_CTX_INFO_NAMESPACE
00110 #  define S_CTX_INFO_NAMESPACE  128
00111 #endif
00112 
00113 #define VC_CAP_CHOWN                     0
00114 #define VC_CAP_DAC_OVERRIDE              1
00115 #define VC_CAP_DAC_READ_SEARCH           2
00116 #define VC_CAP_FOWNER                    3
00117 #define VC_CAP_FSETID                    4
00118 #define VC_CAP_KILL                      5
00119 #define VC_CAP_SETGID                    6
00120 #define VC_CAP_SETUID                    7
00121 #define VC_CAP_SETPCAP                   8
00122 #define VC_CAP_LINUX_IMMUTABLE           9
00123 #define VC_CAP_NET_BIND_SERVICE         10
00124 #define VC_CAP_NET_BROADCAST            11
00125 #define VC_CAP_NET_ADMIN                12
00126 #define VC_CAP_NET_RAW                  13
00127 #define VC_CAP_IPC_LOCK                 14
00128 #define VC_CAP_IPC_OWNER                15
00129 #define VC_CAP_SYS_MODULE               16
00130 #define VC_CAP_SYS_RAWIO                17
00131 #define VC_CAP_SYS_CHROOT               18
00132 #define VC_CAP_SYS_PTRACE               19
00133 #define VC_CAP_SYS_PACCT                20
00134 #define VC_CAP_SYS_ADMIN                21
00135 #define VC_CAP_SYS_BOOT                 22
00136 #define VC_CAP_SYS_NICE                 23
00137 #define VC_CAP_SYS_RESOURCE             24
00138 #define VC_CAP_SYS_TIME                 25
00139 #define VC_CAP_SYS_TTY_CONFIG           26
00140 #define VC_CAP_MKNOD                    27
00141 #define VC_CAP_LEASE                    28
00142 #define VC_CAP_AUDIT_WRITE              29
00143 #define VC_CAP_AUDIT_CONTROL            30
00144 
00145 #define VC_IMMUTABLE_FILE_FL            0x0000010lu
00146 #define VC_IMMUTABLE_LINK_FL            0x0008000lu
00147 #define VC_IMMUTABLE_ALL                (VC_IMMUTABLE_LINK_FL|VC_IMMUTABLE_FILE_FL)
00148 
00149 #define VC_IATTR_XID                    0x01000000u
00150 
00151 #define VC_IATTR_ADMIN                  0x00000001u
00152 #define VC_IATTR_WATCH                  0x00000002u
00153 #define VC_IATTR_HIDE                   0x00000004u
00154 #define VC_IATTR_FLAGS                  0x00000007u
00155 
00156 #define VC_IATTR_BARRIER                0x00010000u
00157 #define VC_IATTR_IUNLINK                0x00020000u
00158 #define VC_IATTR_IMMUTABLE              0x00040000u
00159 
00160 
00161 // the flags
00162 #define VC_VXF_INFO_LOCK                0x00000001ull
00163 #define VC_VXF_INFO_NPROC               0x00000004ull
00164 #define VC_VXF_INFO_PRIVATE             0x00000008ull
00165 #define VC_VXF_INFO_INIT                0x00000010ull
00166 
00167 #define VC_VXF_INFO_HIDEINFO            0x00000020ull
00168 #define VC_VXF_INFO_ULIMIT              0x00000040ull
00169 #define VC_VXF_INFO_NAMESPACE           0x00000080ull
00170 
00171 #define VC_VXF_SCHED_HARD               0x00000100ull
00172 #define VC_VXF_SCHED_PRIO               0x00000200ull
00173 #define VC_VXF_SCHED_PAUSE              0x00000400ull
00174 
00175 #define VC_VXF_VIRT_MEM                 0x00010000ull
00176 #define VC_VXF_VIRT_UPTIME              0x00020000ull
00177 #define VC_VXF_VIRT_CPU                 0x00040000ull
00178 #define VC_VXF_VIRT_LOAD                0x00080000ull
00179 #define VC_VXF_VIRT_TIME                0x00100000ull
00180 
00181 #define VC_VXF_HIDE_MOUNT               0x01000000ull
00182 #define VC_VXF_HIDE_NETIF               0x02000000ull
00183 #define VC_VXF_HIDE_VINFO               0x04000000ull
00184 
00185 #define VC_VXF_STATE_SETUP              (1ULL<<32)
00186 #define VC_VXF_STATE_INIT               (1ULL<<33)
00187 #define VC_VXF_STATE_ADMIN              (1ULL<<34)
00188 
00189 #define VC_VXF_SC_HELPER                (1ULL<<36)
00190 #define VC_VXF_REBOOT_KILL              (1ULL<<37)
00191 #define VC_VXF_PERSISTENT               (1ULL<<38)
00192 
00193 #define VC_VXF_FORK_RSS                 (1ULL<<48)
00194 #define VC_VXF_PROLIFIC                 (1ULL<<49)
00195 
00196 #define VC_VXF_IGNEG_NICE               (1ULL<<52)
00197 
00198 
00199 // the ccapabilities
00200 #define VC_VXC_SET_UTSNAME              0x00000001ull
00201 #define VC_VXC_SET_RLIMIT               0x00000002ull
00202 
00203 #define VC_VXC_RAW_ICMP                 0x00000100ull
00204 #define VC_VXC_SYSLOG                   0x00001000ull
00205 
00206 #define VC_VXC_SECURE_MOUNT             0x00010000ull
00207 #define VC_VXC_SECURE_REMOUNT           0x00020000ull
00208 #define VC_VXC_BINARY_MOUNT             0x00040000ull
00209 
00210 #define VC_VXC_QUOTA_CTL                0x00100000ull
00211 #define VC_VXC_ADMIN_MAPPER             0x00200000ull
00212 #define VC_VXC_ADMIN_CLOOP              0x00400000ull
00213 
00214 #define VC_VXC_KTHREAD                  0x01000000ull
00215 
00216 
00217 // the scheduler flags
00218 #define VC_VXSM_FILL_RATE               0x0001
00219 #define VC_VXSM_INTERVAL                0x0002
00220 #define VC_VXSM_FILL_RATE2              0x0004
00221 #define VC_VXSM_INTERVAL2               0x0008
00222 #define VC_VXSM_TOKENS                  0x0010
00223 #define VC_VXSM_TOKENS_MIN              0x0020
00224 #define VC_VXSM_TOKENS_MAX              0x0040
00225 #define VC_VXSM_PRIO_BIAS               0x0100
00226 #define VC_VXSM_CPU_ID                  0x1000
00227 #define VC_VXSM_BUCKET_ID               0x2000
00228 
00229 #define VC_VXSM_IDLE_TIME               0x0200
00230 #define VC_VXSM_FORCE                   0x0400
00231 #define VC_VXSM_MSEC                    0x4000
00232 
00233 #define VC_VXSM_V3_MASK                 0x0173
00234 
00235 
00236 // the network flags
00237 #define VC_NXF_INFO_LOCK                0x00000001ull
00238 #define VC_NXF_INFO_PRIVATE             0x00000008ull
00239 
00240 #define VC_NXF_SINGLE_IP                0x00000100ull
00241 #define VC_NXF_LBACK_REMAP              0x00000200ull
00242 #define VC_NXF_LBACK_ALLOW              0x00000400ull
00243 
00244 #define VC_NXF_HIDE_NETIF               0x02000000ull
00245 #define VC_NXF_HIDE_LBACK               0x04000000ull
00246 
00247 #define VC_NXF_STATE_SETUP              (1ULL<<32)
00248 #define VC_NXF_STATE_ADMIN              (1ULL<<34)
00249 
00250 #define VC_NXF_SC_HELPER                (1ULL<<36)
00251 #define VC_NXF_PERSISTENT               (1ULL<<38)
00252 
00253 
00254 // the network capabilities
00255 #define VC_NXC_TUN_CREATE               0x00000001ull
00256 
00257 #define VC_NXC_RAW_ICMP                 0x00000100ull
00258 
00259 
00260 // the vserver specific limits
00261 #define VC_VLIMIT_NSOCK                 16
00262 #define VC_VLIMIT_OPENFD                17
00263 #define VC_VLIMIT_ANON                  18
00264 #define VC_VLIMIT_SHMEM                 19
00265 #define VC_VLIMIT_SEMARY                20
00266 #define VC_VLIMIT_NSEMS                 21
00267 #define VC_VLIMIT_DENTRY                22
00268 #define VC_VLIMIT_MAPPED                23
00269 
00270 
00271 // the VCI bit values
00272 #define VC_VCI_NO_DYNAMIC               (1 << 0)
00273 #define VC_VCI_SPACES                   (1 << 10)
00274 #define VC_VCI_NETV2                    (1 << 11)
00275 #define VC_VCI_PPTAG                    (1 << 28)
00276 
00277 
00278 // the device mapping flags
00279 #define VC_DATTR_CREATE                 0x00000001
00280 #define VC_DATTR_OPEN                   0x00000002
00281 
00282 #define VC_DATTR_REMAP                  0x00000010
00283 
00284 
00285 // the process context migration flags
00286 #define VC_VXM_SET_INIT                 0x00000001
00287 #define VC_VXM_SET_REAPER               0x00000002
00288 
00289 
00290 // the network address flags
00291 #define VC_NXA_TYPE_IPV4                0x0001
00292 #define VC_NXA_TYPE_IPV6                0x0002
00293 
00294 #define VC_NXA_TYPE_NONE                0x0000
00295 #define VC_NXA_TYPE_ANY                 0x00FF
00296 
00297 #define VC_NXA_TYPE_ADDR                0x0010
00298 #define VC_NXA_TYPE_MASK                0x0020
00299 #define VC_NXA_TYPE_RANGE               0x0040
00300 
00301 #define VC_NXA_MOD_BCAST                0x0100
00302 #define VC_NXA_MOD_LBACK                0x0200
00303 
00304 
00305 #ifndef CLONE_NEWNS
00306 #  define CLONE_NEWNS                   0x00020000
00307 #endif
00308 #ifndef CLONE_NEWUTS
00309 #  define CLONE_NEWUTS                  0x04000000
00310 #endif
00311 #ifndef CLONE_NEWIPC
00312 #  define CLONE_NEWIPC                  0x08000000
00313 #endif
00314 #ifndef CLONE_NEWUSER
00315 #  define CLONE_NEWUSER                 0x10000000
00316 #endif
00317 #ifndef CLONE_NEWPID
00318 #  define CLONE_NEWPID                  0x20000000
00319 #endif
00320 #ifndef CLONE_NEWNET
00321 #  define CLONE_NEWNET                  0x40000000
00322 #endif
00323 
00324 
00325 #define VC_BAD_PERSONALITY              ((uint_least32_t)(-1))
00326 
00327 
00337 #ifdef IS_DOXYGEN
00338 typedef an_unsigned_integer_type        xid_t;
00339 typedef an_unsigned_integer_type        nid_t;
00340 typedef an_unsigned_integer_type        tag_t;
00341 #endif
00342 
00343 #ifdef __cplusplus
00344 extern "C" {
00345 #endif
00346 
00359   int           vc_syscall(uint32_t cmd, xid_t xid, void *data);
00360 
00365   int           vc_get_version();
00366 
00367   typedef       uint64_t vc_vci_t;
00372   vc_vci_t      vc_get_vci();
00373 
00391   xid_t         vc_new_s_context(xid_t ctx, unsigned int remove_cap, unsigned int flags);
00392 
00393   struct vc_ip_mask_pair {
00394       uint32_t  ip;
00395       uint32_t  mask;
00396   };
00397 
00401   int           vc_set_ipv4root(uint32_t  bcast, size_t nb,
00402                         struct vc_ip_mask_pair const *ips) VC_ATTR_NONNULL((3));
00403 
00410   size_t        vc_get_nb_ipv4root() VC_ATTR_CONST VC_ATTR_PURE;
00411 
00412     /* process context */
00415   struct  vc_ctx_flags {
00417       uint_least64_t    flagword;
00421       uint_least64_t    mask;
00422   };
00423 
00435   xid_t         vc_ctx_create(xid_t xid, struct vc_ctx_flags *flags);
00436 
00443   int           vc_ctx_migrate(xid_t xid, uint_least64_t flags);
00444 
00446   struct vc_ctx_stat {
00447       uint_least32_t    usecnt; 
00448       uint_least32_t    tasks;  
00449   };
00450 
00458   int           vc_ctx_stat(xid_t xid, struct vc_ctx_stat /*@out@*/ *stat) VC_ATTR_NONNULL((2));
00459 
00461   struct vc_virt_stat {
00462       uint_least64_t    offset;
00463       uint_least64_t    uptime;
00464       uint_least32_t    nr_threads;
00465       uint_least32_t    nr_running;
00466       uint_least32_t    nr_uninterruptible;
00467       uint_least32_t    nr_onhold;
00468       uint_least32_t    nr_forks;
00469       uint_least32_t    load[3];
00470   };
00471 
00479   int           vc_virt_stat(xid_t xid, struct vc_virt_stat /*@out@*/ *stat) VC_ATTR_NONNULL((2));
00480 
00487   int           vc_ctx_kill(xid_t ctx, pid_t pid, int sig);
00488  
00489   int           vc_get_cflags(xid_t xid, struct vc_ctx_flags /*@out@*/ *)       VC_ATTR_NONNULL((2));
00490   int           vc_set_cflags(xid_t xid, struct vc_ctx_flags /*@in@*/ const *)  VC_ATTR_NONNULL((2));
00491 
00493   struct  vc_ctx_caps {
00495       uint_least64_t    bcaps;
00499       uint_least64_t    bmask;
00501       uint_least64_t    ccaps;
00505       uint_least64_t    cmask;
00506   };
00507 
00508   int           vc_get_ccaps(xid_t xid, struct vc_ctx_caps *);
00509   int           vc_set_ccaps(xid_t xid, struct vc_ctx_caps const *);
00510 
00511   struct vc_vx_info {
00512       xid_t     xid;
00513       pid_t     initpid;
00514   };
00515 
00516   int           vc_get_vx_info(xid_t xid, struct vc_vx_info *info) VC_ATTR_NONNULL((2));
00517   
00525   xid_t         vc_get_task_xid(pid_t pid);
00526 
00530   int           vc_wait_exit(xid_t xid);
00531   
00532     /* rlimit related functions */
00533   
00543   typedef uint_least64_t        vc_limit_t;
00544 
00546   struct  vc_rlimit_mask {
00547       uint_least32_t    min;    
00548       uint_least32_t    soft;   
00549       uint_least32_t    hard;   
00550   };
00551 
00553   int           vc_get_rlimit_mask(xid_t xid,
00554                            struct vc_rlimit_mask /*@out@*/ *lim) VC_ATTR_NONNULL((2));
00555 
00559   struct vc_rlimit {
00560       vc_limit_t        min;    
00561       vc_limit_t        soft;   
00562       vc_limit_t        hard;   
00563   };
00564 
00573   int           vc_get_rlimit(xid_t xid, int resource,
00574                       struct vc_rlimit       /*@out@*/ *lim) VC_ATTR_NONNULL((3));
00583   int           vc_set_rlimit(xid_t xid, int resource,
00584                       struct vc_rlimit const /*@in@*/  *lim) VC_ATTR_NONNULL((3));
00585 
00587   struct  vc_rlimit_stat {
00588       uint_least32_t    hits;    
00589       vc_limit_t        value;   
00590       vc_limit_t        minimum; 
00591       vc_limit_t        maximum; 
00592   };
00593 
00602   int           vc_rlimit_stat(xid_t xid, int resource,
00603                        struct vc_rlimit_stat /*@out@*/ *stat) VC_ATTR_NONNULL((3));
00604 
00611   int           vc_reset_minmax(xid_t xid);
00612 
00632   bool          vc_parseLimit(char const /*@in@*/ *str, vc_limit_t /*@out@*/ *res)      VC_ATTR_NONNULL((1,2));
00633 
00634 
00635     /* network context */
00636   struct vc_nx_info {
00637       nid_t     nid;
00638   };
00639 
00640   nid_t         vc_get_task_nid(pid_t pid);
00641   int           vc_get_nx_info(nid_t nid, struct vc_nx_info *) VC_ATTR_NONNULL((2));
00642 
00643   struct vc_net_addr {
00644       uint16_t                  vna_type;
00645       uint16_t                  vna_flags;
00646       uint16_t                  vna_prefix;
00647       uint16_t                  vna_parent;
00648       struct {
00649         union {
00650           struct in_addr        v4;
00651           struct in6_addr       v6;
00652         } ip;
00653         union {
00654           struct in_addr        v4;
00655           struct in6_addr       v6;
00656         } ip2;
00657         union {
00658           struct in_addr        v4;
00659           struct in6_addr       v6;
00660         } mask;
00661       } s;
00662 #define vna_v4_ip       s.ip.v4
00663 #define vna_v4_ip2      s.ip2.v4
00664 #define vna_v4_mask     s.mask.v4
00665 #define vna_v6_ip       s.ip.v6
00666 #define vna_v6_ip2      s.ip2.v6
00667 #define vna_v6_mask     s.mask.v6
00668   };
00669 
00670   struct vc_net_flags {
00671       uint_least64_t    flagword;
00672       uint_least64_t    mask;
00673   };
00674 
00675   nid_t         vc_net_create(nid_t nid);
00676   int           vc_net_migrate(nid_t nid);
00677 
00678   int           vc_net_add(nid_t nid, struct vc_net_addr const *info);
00679   int           vc_net_remove(nid_t nid, struct vc_net_addr const *info);
00680 
00681   int           vc_get_nflags(nid_t, struct vc_net_flags *);
00682   int           vc_set_nflags(nid_t, struct vc_net_flags const *);
00683 
00684   struct vc_net_caps {
00685       uint_least64_t    ncaps;
00686       uint_least64_t    cmask;
00687   };
00688 
00689   int           vc_get_ncaps(nid_t, struct vc_net_caps *);
00690   int           vc_set_ncaps(nid_t, struct vc_net_caps const *);
00691 
00692 
00693     /* iattr related functions */
00694 
00695   int           vc_set_iattr(char const *filename, xid_t xid,
00696                              uint_least32_t flags, uint_least32_t mask) VC_ATTR_NONNULL((1));
00697 
00698   int           vc_fset_iattr(int fd, xid_t xid,
00699                               uint_least32_t flags, uint_least32_t mask);
00700 
00727   int           vc_get_iattr(char const *filename, xid_t * /*@null@*/ xid,
00728                              uint_least32_t * /*@null@*/ flags,
00729                              uint_least32_t * /*@null@*/ mask) VC_ATTR_NONNULL((1));
00730 
00731   int           vc_fget_iattr(int fd, xid_t * /*@null@*/ xid,
00732                               uint_least32_t * /*@null@*/ flags,
00733                               uint_least32_t * /*@null@*/ mask) VC_ATTR_NONNULL((4));
00734   
00748   xid_t         vc_getfilecontext(char const *filename) VC_ATTR_NONNULL((1));
00749 
00750 
00751     /* vhi related functions */
00752   typedef enum { vcVHI_CONTEXT, vcVHI_SYSNAME, vcVHI_NODENAME,
00753                  vcVHI_RELEASE, vcVHI_VERSION, vcVHI_MACHINE,
00754                  vcVHI_DOMAINNAME }             vc_uts_type;
00755   
00756   int           vc_set_vhi_name(xid_t xid, vc_uts_type type,
00757                                 char const *val, size_t len) VC_ATTR_NONNULL((3));
00758   int           vc_get_vhi_name(xid_t xid, vc_uts_type type,
00759                                 char *val, size_t len)       VC_ATTR_NONNULL((3));
00760 
00761     /* namespace related functions */
00762   int           vc_enter_namespace(xid_t xid, uint_least64_t mask);
00763   int           vc_set_namespace(xid_t xid, uint_least64_t mask);
00764   int           vc_cleanup_namespace();
00765   uint_least64_t vc_get_space_mask();
00766 
00767 
00768     /* disk limit related things */
00769   struct vc_ctx_dlimit {
00770       uint_least32_t    space_used;
00771       uint_least32_t    space_total;
00772       uint_least32_t    inodes_used;
00773       uint_least32_t    inodes_total;
00774       uint_least32_t    reserved;
00775   };
00776   
00777 
00779   int           vc_add_dlimit(char const *filename, xid_t xid,
00780                               uint_least32_t flags) VC_ATTR_NONNULL((1));
00782   int           vc_rem_dlimit(char const *filename, xid_t xid,
00783                               uint_least32_t flags) VC_ATTR_NONNULL((1));
00784 
00786   int           vc_set_dlimit(char const *filename, xid_t xid,
00787                               uint_least32_t flags,
00788                               struct vc_ctx_dlimit const *limits) VC_ATTR_NONNULL((1,4));
00790   int           vc_get_dlimit(char const *filename, xid_t xid,
00791                               uint_least32_t flags,
00792                               struct vc_ctx_dlimit *limits) VC_ATTR_NONNULL((1));
00793 
00795   tag_t         vc_get_task_tag(pid_t pid);
00796 
00798   int           vc_tag_create(tag_t tag);
00799 
00801   int           vc_tag_migrate(tag_t tag);
00802 
00803     /* scheduler related syscalls */
00804   struct vc_set_sched {
00805       uint_least32_t    set_mask;
00806       int_least32_t     fill_rate;
00807       int_least32_t     interval;
00808       int_least32_t     fill_rate2;
00809       int_least32_t     interval2;
00810       int_least32_t     tokens;
00811       int_least32_t     tokens_min;
00812       int_least32_t     tokens_max;
00813       int_least32_t     priority_bias;
00814       int_least32_t     cpu_id;
00815       int_least32_t     bucket_id;
00816   };
00817 
00818   int           vc_set_sched(xid_t xid, struct vc_set_sched const *) VC_ATTR_NONNULL((2));
00819   int           vc_get_sched(xid_t xid, struct vc_set_sched *) VC_ATTR_NONNULL((2));
00820 
00821   struct vc_sched_info {
00822       int_least32_t     cpu_id;
00823       int_least32_t     bucket_id;
00824       uint_least64_t    user_msec;
00825       uint_least64_t    sys_msec;
00826       uint_least64_t    hold_msec;
00827       uint_least32_t    token_usec;
00828       int_least32_t     vavavoom;
00829   };
00830 
00831   int           vc_sched_info(xid_t xid, struct vc_sched_info *info) VC_ATTR_NONNULL((2));
00832 
00833     /* misc. syscalls */
00834   int           vc_set_mapping(xid_t xid, const char *device, const char *target, uint32_t flags);
00835   int           vc_unset_mapping(xid_t xid, const char *device, const char *target, uint32_t flags);
00836 
00837   int           vc_get_badness(xid_t xid, int64_t *badness);
00838   int           vc_set_badness(xid_t xid, int64_t badness);
00839 
00840 
00844   struct vc_err_listparser {
00845       char const        *ptr;           
00846       size_t            len;            
00847   };
00848 
00859   uint_least64_t        vc_text2bcap(char const *str, size_t len);
00860 
00875   char const *  vc_lobcap2text(uint_least64_t *val) VC_ATTR_NONNULL((1));
00876 
00904   int                   vc_list2bcap(char const *str, size_t len,
00905                                      struct vc_err_listparser *err,
00906                                      struct vc_ctx_caps *cap) VC_ATTR_NONNULL((1,4));
00907 
00908   uint_least64_t        vc_text2ccap(char const *, size_t len);
00909   char const *          vc_loccap2text(uint_least64_t *);
00910   int                   vc_list2ccap(char const *, size_t len,
00911                                      struct vc_err_listparser *err,
00912                                      struct vc_ctx_caps *);
00913 
00914   int                   vc_list2cflag(char const *, size_t len,
00915                                      struct vc_err_listparser *err,
00916                                      struct vc_ctx_flags *flags);
00917   uint_least64_t        vc_text2cflag(char const *, size_t len);
00918   char const *          vc_locflag2text(uint_least64_t *);
00919   
00920   uint_least32_t        vc_list2cflag_compat(char const *, size_t len,
00921                                             struct vc_err_listparser *err);
00922   uint_least32_t        vc_text2cflag_compat(char const *, size_t len);
00923   char const *          vc_hicflag2text_compat(uint_least32_t);
00924 
00925   int                   vc_text2cap(char const *);
00926   char const *          vc_cap2text(unsigned int);
00927 
00928   
00929   int                   vc_list2nflag(char const *, size_t len,
00930                                      struct vc_err_listparser *err,
00931                                      struct vc_net_flags *flags);
00932   uint_least64_t        vc_text2nflag(char const *, size_t len);
00933   char const *          vc_lonflag2text(uint_least64_t *);
00934 
00935   uint_least64_t        vc_text2ncap(char const *, size_t len);
00936   char const *          vc_loncap2text(uint_least64_t *);
00937   int                   vc_list2ncap(char const *, size_t len,
00938                                      struct vc_err_listparser *err,
00939                                      struct vc_net_caps *);
00940 
00941   uint_least64_t                vc_get_insecurebcaps() VC_ATTR_CONST;
00942   inline static uint_least64_t  vc_get_insecureccaps() {
00943     return ~(VC_VXC_SET_UTSNAME|VC_VXC_RAW_ICMP);
00944   }
00945   
00946   inline static int     vc_setfilecontext(char const *filename, xid_t xid) {
00947     return vc_set_iattr(filename, xid, 0, VC_IATTR_XID);
00948   }
00949 
00950 
00951   uint_least32_t        vc_text2personalityflag(char const *str,
00952                                                 size_t len) VC_ATTR_NONNULL((1));
00953 
00954   char const *          vc_lopersonality2text(uint_least32_t *) VC_ATTR_NONNULL((1));
00955   
00956   int                   vc_list2personalityflag(char const /*@in@*/ *,
00957                                                 size_t len,
00958                                                 uint_least32_t /*@out@*/ *personality,
00959                                                 struct vc_err_listparser /*@out@*/ *err) VC_ATTR_NONNULL((1,3));
00960 
00961   uint_least32_t        vc_str2personalitytype(char const /*@in@*/*,
00962                                                size_t len) VC_ATTR_NONNULL((1));
00963 
00964     
00965   typedef enum { vcFEATURE_VKILL,  vcFEATURE_IATTR,   vcFEATURE_RLIMIT,
00966                  vcFEATURE_COMPAT, vcFEATURE_MIGRATE, vcFEATURE_NAMESPACE,
00967                  vcFEATURE_SCHED,  vcFEATURE_VINFO,   vcFEATURE_VHI,
00968                  vcFEATURE_VSHELPER0, vcFEATURE_VSHELPER, vcFEATURE_VWAIT,
00969                  vcFEATURE_VNET, vcFEATURE_VSTAT,     vcFEATURE_PPTAG, }
00970     vcFeatureSet;
00971 
00972   bool          vc_isSupported(vcFeatureSet) VC_ATTR_CONST;
00973   bool          vc_isSupportedString(char const *);
00974 
00975   
00976   typedef enum { vcTYPE_INVALID, vcTYPE_MAIN, vcTYPE_WATCH,
00977                  vcTYPE_STATIC, vcTYPE_DYNAMIC }
00978     vcXidType;
00979   
00980   vcXidType     vc_getXIDType(xid_t xid) VC_ATTR_CONST;
00981 
00983   bool          vc_is_dynamic_xid(xid_t xid);
00984 
00985 
00986   /* The management part */
00987 
00988 #define VC_LIMIT_VSERVER_NAME_LEN       1024
00989   
00990   typedef enum { vcCFG_NONE, vcCFG_AUTO,
00991                  vcCFG_LEGACY,
00992                  vcCFG_RECENT_SHORT,
00993                  vcCFG_RECENT_FULL }            vcCfgStyle;
00994 
00995 
00997   xid_t         vc_xidopt2xid(char const *, bool honor_static, char const **err_info);
00999   nid_t         vc_nidopt2nid(char const *, bool honor_static, char const **err_info);
01001   tag_t         vc_tagopt2tag(char const *, bool honor_static, char const **err_info);
01002 
01003   vcCfgStyle    vc_getVserverCfgStyle(char const *id);
01004   
01007   char *        vc_getVserverName(char const *id, vcCfgStyle style);
01008 
01013   char *        vc_getVserverCfgDir(char const *id, vcCfgStyle style);
01014 
01018   char *        vc_getVserverAppDir(char const *id, vcCfgStyle style, char const *app);
01019 
01022   char *        vc_getVserverVdir(char const *id, vcCfgStyle style, bool physical);
01023 
01024   typedef enum { vcCTX_XID = 1,
01025                  vcCTX_NID,
01026                  vcCTX_TAG,
01027         } vcCtxType;
01028 
01036   xid_t         vc_getVserverCtx(char const *id, vcCfgStyle style,
01037                                  bool honor_static, bool /*@null@*/ *is_running,
01038                                  vcCtxType type);
01039 
01044   char *        vc_getVserverByCtx(xid_t ctx, /*@null@*/vcCfgStyle *style,
01045                                    /*@null@*/char const *revdir);
01046 
01047   int           vc_compareVserverById(char const *lhs, vcCfgStyle lhs_style,
01048                                       char const *rhs, vcCfgStyle rhs_style);
01049  
01050 #define vcSKEL_INTERFACES       1u
01051 #define vcSKEL_PKGMGMT          2u
01052 #define vcSKEL_FILESYSTEM       4u
01053 
01056   int           vc_createSkeleton(char const *id, vcCfgStyle style, int flags);
01057 
01058 
01059 #ifdef __cplusplus
01060 }
01061 #endif
01062 
01063 #undef VC_ATTR_PURE
01064 #undef VC_ATTR_ALWAYSINLINE
01065 #undef VC_ATTR_NORETURN
01066 #undef VC_ATTR_UNUSED
01067 #undef VC_ATTR_NONNULL
01068 
01069 #endif

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