vserver.h

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00001 /* $Id: vserver.h 2589 2007-08-16 03:06:50Z 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 
00215 // the scheduler flags
00216 #define VC_VXSM_FILL_RATE               0x0001
00217 #define VC_VXSM_INTERVAL                0x0002
00218 #define VC_VXSM_FILL_RATE2              0x0004
00219 #define VC_VXSM_INTERVAL2               0x0008
00220 #define VC_VXSM_TOKENS                  0x0010
00221 #define VC_VXSM_TOKENS_MIN              0x0020
00222 #define VC_VXSM_TOKENS_MAX              0x0040
00223 #define VC_VXSM_PRIO_BIAS               0x0100
00224 #define VC_VXSM_CPU_ID                  0x1000
00225 #define VC_VXSM_BUCKET_ID               0x2000
00226 
00227 #define VC_VXSM_IDLE_TIME               0x0200
00228 #define VC_VXSM_FORCE                   0x0400
00229 #define VC_VXSM_MSEC                    0x4000
00230 
00231 #define VC_VXSM_V3_MASK                 0x0173
00232 
00233 
00234 // the network flags
00235 #define VC_NXF_INFO_LOCK                0x00000001ull
00236 #define VC_NXF_INFO_PRIVATE             0x00000008ull
00237 
00238 #define VC_NXF_SINGLE_IP                0x00000100ull
00239 #define VC_NXF_LBACK_REMAP              0x00000200ull
00240 
00241 #define VC_NXF_HIDE_NETIF               0x02000000ull
00242 #define VC_NXF_HIDE_LBACK               0x04000000ull
00243 
00244 #define VC_NXF_STATE_SETUP              (1ULL<<32)
00245 #define VC_NXF_STATE_ADMIN              (1ULL<<34)
00246 
00247 #define VC_NXF_SC_HELPER                (1ULL<<36)
00248 #define VC_NXF_PERSISTENT               (1ULL<<38)
00249 
00250 
00251 // the network capabilities
00252 #define VC_NXC_RAW_ICMP                 0x00000100ull
00253 
00254 
00255 // the vserver specific limits
00256 #define VC_VLIMIT_NSOCK                 16
00257 #define VC_VLIMIT_OPENFD                17
00258 #define VC_VLIMIT_ANON                  18
00259 #define VC_VLIMIT_SHMEM                 19
00260 #define VC_VLIMIT_SEMARY                20
00261 #define VC_VLIMIT_NSEMS                 21
00262 #define VC_VLIMIT_DENTRY                22
00263 #define VC_VLIMIT_MAPPED                23
00264 
00265 
00266 // the VCI bit values
00267 #define VC_VCI_NO_DYNAMIC               (1 << 0)
00268 #define VC_VCI_SPACES                   (1 << 10)
00269 #define VC_VCI_NETV2                    (1 << 11)
00270 #define VC_VCI_PPTAG                    (1 << 28)
00271 
00272 
00273 // the device mapping flags
00274 #define VC_DATTR_CREATE                 0x00000001
00275 #define VC_DATTR_OPEN                   0x00000002
00276 
00277 #define VC_DATTR_REMAP                  0x00000010
00278 
00279 
00280 // the process context migration flags
00281 #define VC_VXM_SET_INIT                 0x00000001
00282 #define VC_VXM_SET_REAPER               0x00000002
00283 
00284 
00285 // the network address flags
00286 #define VC_NXA_TYPE_IPV4                0x0001
00287 #define VC_NXA_TYPE_IPV6                0x0002
00288 
00289 #define VC_NXA_TYPE_NONE                0x0000
00290 #define VC_NXA_TYPE_ANY                 0x00FF
00291 
00292 #define VC_NXA_TYPE_ADDR                0x0010
00293 #define VC_NXA_TYPE_MASK                0x0020
00294 #define VC_NXA_TYPE_RANGE               0x0040
00295 
00296 #define VC_NXA_MOD_BCAST                0x0100
00297 #define VC_NXA_MOD_LBACK                0x0200
00298 
00299 
00300 #ifndef CLONE_NEWNS
00301 #  define CLONE_NEWNS                   0x00020000
00302 #endif
00303 #ifndef CLONE_NEWUTS
00304 #  define CLONE_NEWUTS                  0x04000000
00305 #endif
00306 #ifndef CLONE_NEWIPC
00307 #  define CLONE_NEWIPC                  0x08000000
00308 #endif
00309 
00310 
00311 
00312 #define VC_BAD_PERSONALITY              ((uint_least32_t)(-1))
00313 
00314 
00324 #ifdef IS_DOXYGEN
00325 typedef an_unsigned_integer_type        xid_t;
00326 typedef an_unsigned_integer_type        nid_t;
00327 typedef an_unsigned_integer_type        tag_t;
00328 #endif
00329 
00330 #ifdef __cplusplus
00331 extern "C" {
00332 #endif
00333 
00346   int           vc_syscall(uint32_t cmd, xid_t xid, void *data);
00347 
00352   int           vc_get_version();
00353 
00354   typedef       uint64_t vc_vci_t;
00359   vc_vci_t      vc_get_vci();
00360 
00378   xid_t         vc_new_s_context(xid_t ctx, unsigned int remove_cap, unsigned int flags);
00379 
00380   struct vc_ip_mask_pair {
00381       uint32_t  ip;
00382       uint32_t  mask;
00383   };
00384 
00388   int           vc_set_ipv4root(uint32_t  bcast, size_t nb,
00389                         struct vc_ip_mask_pair const *ips) VC_ATTR_NONNULL((3));
00390 
00397   size_t        vc_get_nb_ipv4root() VC_ATTR_CONST VC_ATTR_PURE;
00398 
00399     /* process context */
00402   struct  vc_ctx_flags {
00404       uint_least64_t    flagword;
00408       uint_least64_t    mask;
00409   };
00410 
00422   xid_t         vc_ctx_create(xid_t xid, struct vc_ctx_flags *flags);
00423 
00430   int           vc_ctx_migrate(xid_t xid, uint_least64_t flags);
00431 
00433   struct vc_ctx_stat {
00434       uint_least32_t    usecnt; 
00435       uint_least32_t    tasks;  
00436   };
00437 
00445   int           vc_ctx_stat(xid_t xid, struct vc_ctx_stat /*@out@*/ *stat) VC_ATTR_NONNULL((2));
00446 
00448   struct vc_virt_stat {
00449       uint_least64_t    offset;
00450       uint_least64_t    uptime;
00451       uint_least32_t    nr_threads;
00452       uint_least32_t    nr_running;
00453       uint_least32_t    nr_uninterruptible;
00454       uint_least32_t    nr_onhold;
00455       uint_least32_t    nr_forks;
00456       uint_least32_t    load[3];
00457   };
00458 
00466   int           vc_virt_stat(xid_t xid, struct vc_virt_stat /*@out@*/ *stat) VC_ATTR_NONNULL((2));
00467 
00474   int           vc_ctx_kill(xid_t ctx, pid_t pid, int sig);
00475  
00476   int           vc_get_cflags(xid_t xid, struct vc_ctx_flags /*@out@*/ *)       VC_ATTR_NONNULL((2));
00477   int           vc_set_cflags(xid_t xid, struct vc_ctx_flags /*@in@*/ const *)  VC_ATTR_NONNULL((2));
00478 
00480   struct  vc_ctx_caps {
00482       uint_least64_t    bcaps;
00486       uint_least64_t    bmask;
00488       uint_least64_t    ccaps;
00492       uint_least64_t    cmask;
00493   };
00494 
00495   int           vc_get_ccaps(xid_t xid, struct vc_ctx_caps *);
00496   int           vc_set_ccaps(xid_t xid, struct vc_ctx_caps const *);
00497 
00498   struct vc_vx_info {
00499       xid_t     xid;
00500       pid_t     initpid;
00501   };
00502 
00503   int           vc_get_vx_info(xid_t xid, struct vc_vx_info *info) VC_ATTR_NONNULL((2));
00504   
00512   xid_t         vc_get_task_xid(pid_t pid);
00513 
00517   int           vc_wait_exit(xid_t xid);
00518   
00519     /* rlimit related functions */
00520   
00530   typedef uint_least64_t        vc_limit_t;
00531 
00533   struct  vc_rlimit_mask {
00534       uint_least32_t    min;    
00535       uint_least32_t    soft;   
00536       uint_least32_t    hard;   
00537   };
00538 
00540   int           vc_get_rlimit_mask(xid_t xid,
00541                            struct vc_rlimit_mask /*@out@*/ *lim) VC_ATTR_NONNULL((2));
00542 
00546   struct vc_rlimit {
00547       vc_limit_t        min;    
00548       vc_limit_t        soft;   
00549       vc_limit_t        hard;   
00550   };
00551 
00560   int           vc_get_rlimit(xid_t xid, int resource,
00561                       struct vc_rlimit       /*@out@*/ *lim) VC_ATTR_NONNULL((3));
00570   int           vc_set_rlimit(xid_t xid, int resource,
00571                       struct vc_rlimit const /*@in@*/  *lim) VC_ATTR_NONNULL((3));
00572 
00574   struct  vc_rlimit_stat {
00575       uint_least32_t    hits;    
00576       vc_limit_t        value;   
00577       vc_limit_t        minimum; 
00578       vc_limit_t        maximum; 
00579   };
00580 
00589   int           vc_rlimit_stat(xid_t xid, int resource,
00590                        struct vc_rlimit_stat /*@out@*/ *stat) VC_ATTR_NONNULL((3));
00591 
00598   int           vc_reset_minmax(xid_t xid);
00599 
00619   bool          vc_parseLimit(char const /*@in@*/ *str, vc_limit_t /*@out@*/ *res)      VC_ATTR_NONNULL((1,2));
00620 
00621 
00622     /* network context */
00623   struct vc_nx_info {
00624       nid_t     nid;
00625   };
00626 
00627   nid_t         vc_get_task_nid(pid_t pid);
00628   int           vc_get_nx_info(nid_t nid, struct vc_nx_info *) VC_ATTR_NONNULL((2));
00629 
00630   struct vc_net_addr {
00631       uint16_t                  vna_type;
00632       uint16_t                  vna_flags;
00633       uint16_t                  vna_prefix;
00634       uint16_t                  vna_parent;
00635       union {
00636         struct {
00637           struct in_addr        ip;
00638           struct in_addr        mask;
00639         } ipv4;
00640         struct {
00641           struct in6_addr       ip;
00642           struct in6_addr       mask;
00643         } ipv6;
00644       } u;
00645 #define vna_v4_ip       u.ipv4.ip
00646 #define vna_v4_mask     u.ipv4.mask
00647 #define vna_v6_ip       u.ipv6.ip
00648 #define vna_v6_mask     u.ipv6.mask
00649   };
00650 
00651   struct vc_net_flags {
00652       uint_least64_t    flagword;
00653       uint_least64_t    mask;
00654   };
00655 
00656   nid_t         vc_net_create(nid_t nid);
00657   int           vc_net_migrate(nid_t nid);
00658 
00659   int           vc_net_add(nid_t nid, struct vc_net_addr const *info);
00660   int           vc_net_remove(nid_t nid, struct vc_net_addr const *info);
00661 
00662   int           vc_get_nflags(nid_t, struct vc_net_flags *);
00663   int           vc_set_nflags(nid_t, struct vc_net_flags const *);
00664 
00665   struct vc_net_caps {
00666       uint_least64_t    ncaps;
00667       uint_least64_t    cmask;
00668   };
00669 
00670   int           vc_get_ncaps(nid_t, struct vc_net_caps *);
00671   int           vc_set_ncaps(nid_t, struct vc_net_caps const *);
00672 
00673 
00674     /* iattr related functions */
00675 
00676   int           vc_set_iattr(char const *filename, xid_t xid,
00677                              uint_least32_t flags, uint_least32_t mask) VC_ATTR_NONNULL((1));
00678 
00679   int           vc_fset_iattr(int fd, xid_t xid,
00680                               uint_least32_t flags, uint_least32_t mask);
00681 
00708   int           vc_get_iattr(char const *filename, xid_t * /*@null@*/ xid,
00709                              uint_least32_t * /*@null@*/ flags,
00710                              uint_least32_t * /*@null@*/ mask) VC_ATTR_NONNULL((1));
00711 
00712   int           vc_fget_iattr(int fd, xid_t * /*@null@*/ xid,
00713                               uint_least32_t * /*@null@*/ flags,
00714                               uint_least32_t * /*@null@*/ mask) VC_ATTR_NONNULL((4));
00715   
00729   xid_t         vc_getfilecontext(char const *filename) VC_ATTR_NONNULL((1));
00730 
00731 
00732     /* vhi related functions */
00733   typedef enum { vcVHI_CONTEXT, vcVHI_SYSNAME, vcVHI_NODENAME,
00734                  vcVHI_RELEASE, vcVHI_VERSION, vcVHI_MACHINE,
00735                  vcVHI_DOMAINNAME }             vc_uts_type;
00736   
00737   int           vc_set_vhi_name(xid_t xid, vc_uts_type type,
00738                                 char const *val, size_t len) VC_ATTR_NONNULL((3));
00739   int           vc_get_vhi_name(xid_t xid, vc_uts_type type,
00740                                 char *val, size_t len)       VC_ATTR_NONNULL((3));
00741 
00742     /* namespace related functions */
00743   int           vc_enter_namespace(xid_t xid, uint_least64_t mask);
00744   int           vc_set_namespace(xid_t xid, uint_least64_t mask);
00745   int           vc_cleanup_namespace();
00746   uint_least64_t vc_get_space_mask();
00747 
00748 
00749     /* disk limit related things */
00750   struct vc_ctx_dlimit {
00751       uint_least32_t    space_used;
00752       uint_least32_t    space_total;
00753       uint_least32_t    inodes_used;
00754       uint_least32_t    inodes_total;
00755       uint_least32_t    reserved;
00756   };
00757   
00758 
00760   int           vc_add_dlimit(char const *filename, xid_t xid,
00761                               uint_least32_t flags) VC_ATTR_NONNULL((1));
00763   int           vc_rem_dlimit(char const *filename, xid_t xid,
00764                               uint_least32_t flags) VC_ATTR_NONNULL((1));
00765 
00767   int           vc_set_dlimit(char const *filename, xid_t xid,
00768                               uint_least32_t flags,
00769                               struct vc_ctx_dlimit const *limits) VC_ATTR_NONNULL((1,4));
00771   int           vc_get_dlimit(char const *filename, xid_t xid,
00772                               uint_least32_t flags,
00773                               struct vc_ctx_dlimit *limits) VC_ATTR_NONNULL((1));
00774 
00776   tag_t         vc_get_task_tag(pid_t pid);
00777 
00779   int           vc_tag_create(tag_t tag);
00780 
00782   int           vc_tag_migrate(tag_t tag);
00783 
00784     /* scheduler related syscalls */
00785   struct vc_set_sched {
00786       uint_least32_t    set_mask;
00787       int_least32_t     fill_rate;
00788       int_least32_t     interval;
00789       int_least32_t     fill_rate2;
00790       int_least32_t     interval2;
00791       int_least32_t     tokens;
00792       int_least32_t     tokens_min;
00793       int_least32_t     tokens_max;
00794       int_least32_t     priority_bias;
00795       int_least32_t     cpu_id;
00796       int_least32_t     bucket_id;
00797   };
00798 
00799   int           vc_set_sched(xid_t xid, struct vc_set_sched const *) VC_ATTR_NONNULL((2));
00800   int           vc_get_sched(xid_t xid, struct vc_set_sched *) VC_ATTR_NONNULL((2));
00801 
00802   struct vc_sched_info {
00803       int_least32_t     cpu_id;
00804       int_least32_t     bucket_id;
00805       uint_least64_t    user_msec;
00806       uint_least64_t    sys_msec;
00807       uint_least64_t    hold_msec;
00808       uint_least32_t    token_usec;
00809       int_least32_t     vavavoom;
00810   };
00811 
00812   int           vc_sched_info(xid_t xid, struct vc_sched_info *info) VC_ATTR_NONNULL((2));
00813 
00814     /* misc. syscalls */
00815   int           vc_set_mapping(xid_t xid, const char *device, const char *target, uint32_t flags);
00816 
00817 
00821   struct vc_err_listparser {
00822       char const        *ptr;           
00823       size_t            len;            
00824   };
00825 
00836   uint_least64_t        vc_text2bcap(char const *str, size_t len);
00837 
00852   char const *  vc_lobcap2text(uint_least64_t *val) VC_ATTR_NONNULL((1));
00853 
00881   int                   vc_list2bcap(char const *str, size_t len,
00882                                      struct vc_err_listparser *err,
00883                                      struct vc_ctx_caps *cap) VC_ATTR_NONNULL((1,4));
00884 
00885   uint_least64_t        vc_text2ccap(char const *, size_t len);
00886   char const *          vc_loccap2text(uint_least64_t *);
00887   int                   vc_list2ccap(char const *, size_t len,
00888                                      struct vc_err_listparser *err,
00889                                      struct vc_ctx_caps *);
00890 
00891   int                   vc_list2cflag(char const *, size_t len,
00892                                      struct vc_err_listparser *err,
00893                                      struct vc_ctx_flags *flags);
00894   uint_least64_t        vc_text2cflag(char const *, size_t len);
00895   char const *          vc_locflag2text(uint_least64_t *);
00896   
00897   uint_least32_t        vc_list2cflag_compat(char const *, size_t len,
00898                                             struct vc_err_listparser *err);
00899   uint_least32_t        vc_text2cflag_compat(char const *, size_t len);
00900   char const *          vc_hicflag2text_compat(uint_least32_t);
00901 
00902   int                   vc_text2cap(char const *);
00903   char const *          vc_cap2text(unsigned int);
00904 
00905   
00906   int                   vc_list2nflag(char const *, size_t len,
00907                                      struct vc_err_listparser *err,
00908                                      struct vc_net_flags *flags);
00909   uint_least64_t        vc_text2nflag(char const *, size_t len);
00910   char const *          vc_lonflag2text(uint_least64_t *);
00911 
00912   uint_least64_t        vc_text2ncap(char const *, size_t len);
00913   char const *          vc_loncap2text(uint_least64_t *);
00914   int                   vc_list2ncap(char const *, size_t len,
00915                                      struct vc_err_listparser *err,
00916                                      struct vc_net_caps *);
00917 
00918   uint_least64_t                vc_get_insecurebcaps() VC_ATTR_CONST;
00919   inline static uint_least64_t  vc_get_insecureccaps() {
00920     return ~(VC_VXC_SET_UTSNAME|VC_VXC_RAW_ICMP);
00921   }
00922   
00923   inline static int     vc_setfilecontext(char const *filename, xid_t xid) {
00924     return vc_set_iattr(filename, xid, 0, VC_IATTR_XID);
00925   }
00926 
00927 
00928   uint_least32_t        vc_text2personalityflag(char const *str,
00929                                                 size_t len) VC_ATTR_NONNULL((1));
00930 
00931   char const *          vc_lopersonality2text(uint_least32_t *) VC_ATTR_NONNULL((1));
00932   
00933   int                   vc_list2personalityflag(char const /*@in@*/ *,
00934                                                 size_t len,
00935                                                 uint_least32_t /*@out@*/ *personality,
00936                                                 struct vc_err_listparser /*@out@*/ *err) VC_ATTR_NONNULL((1,3));
00937 
00938   uint_least32_t        vc_str2personalitytype(char const /*@in@*/*,
00939                                                size_t len) VC_ATTR_NONNULL((1));
00940 
00941     
00942   typedef enum { vcFEATURE_VKILL,  vcFEATURE_IATTR,   vcFEATURE_RLIMIT,
00943                  vcFEATURE_COMPAT, vcFEATURE_MIGRATE, vcFEATURE_NAMESPACE,
00944                  vcFEATURE_SCHED,  vcFEATURE_VINFO,   vcFEATURE_VHI,
00945                  vcFEATURE_VSHELPER0, vcFEATURE_VSHELPER, vcFEATURE_VWAIT,
00946                  vcFEATURE_VNET, vcFEATURE_VSTAT,     vcFEATURE_PPTAG, }
00947     vcFeatureSet;
00948 
00949   bool          vc_isSupported(vcFeatureSet) VC_ATTR_CONST;
00950   bool          vc_isSupportedString(char const *);
00951 
00952   
00953   typedef enum { vcTYPE_INVALID, vcTYPE_MAIN, vcTYPE_WATCH,
00954                  vcTYPE_STATIC, vcTYPE_DYNAMIC }
00955     vcXidType;
00956   
00957   vcXidType     vc_getXIDType(xid_t xid) VC_ATTR_CONST;
00958 
00960   bool          vc_is_dynamic_xid(xid_t xid);
00961 
00962 
00963   /* The management part */
00964 
00965 #define VC_LIMIT_VSERVER_NAME_LEN       1024
00966   
00967   typedef enum { vcCFG_NONE, vcCFG_AUTO,
00968                  vcCFG_LEGACY,
00969                  vcCFG_RECENT_SHORT,
00970                  vcCFG_RECENT_FULL }            vcCfgStyle;
00971 
00972 
00974   xid_t         vc_xidopt2xid(char const *, bool honor_static, char const **err_info);
00976   nid_t         vc_nidopt2nid(char const *, bool honor_static, char const **err_info);
00978   tag_t         vc_tagopt2tag(char const *, bool honor_static, char const **err_info);
00979 
00980   vcCfgStyle    vc_getVserverCfgStyle(char const *id);
00981   
00984   char *        vc_getVserverName(char const *id, vcCfgStyle style);
00985 
00990   char *        vc_getVserverCfgDir(char const *id, vcCfgStyle style);
00991 
00995   char *        vc_getVserverAppDir(char const *id, vcCfgStyle style, char const *app);
00996 
00999   char *        vc_getVserverVdir(char const *id, vcCfgStyle style, bool physical);
01000 
01001   typedef enum { vcCTX_XID = 1,
01002                  vcCTX_NID,
01003                  vcCTX_TAG,
01004         } vcCtxType;
01005 
01013   xid_t         vc_getVserverCtx(char const *id, vcCfgStyle style,
01014                                  bool honor_static, bool /*@null@*/ *is_running,
01015                                  vcCtxType type);
01016 
01021   char *        vc_getVserverByCtx(xid_t ctx, /*@null@*/vcCfgStyle *style,
01022                                    /*@null@*/char const *revdir);
01023 
01024   int           vc_compareVserverById(char const *lhs, vcCfgStyle lhs_style,
01025                                       char const *rhs, vcCfgStyle rhs_style);
01026  
01027 #define vcSKEL_INTERFACES       1u
01028 #define vcSKEL_PKGMGMT          2u
01029 #define vcSKEL_FILESYSTEM       4u
01030 
01033   int           vc_createSkeleton(char const *id, vcCfgStyle style, int flags);
01034 
01035 
01036 #ifdef __cplusplus
01037 }
01038 #endif
01039 
01040 #undef VC_ATTR_PURE
01041 #undef VC_ATTR_ALWAYSINLINE
01042 #undef VC_ATTR_NORETURN
01043 #undef VC_ATTR_UNUSED
01044 #undef VC_ATTR_NONNULL
01045 
01046 #endif

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