X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=util-vserver%2Flib%2Fvserver.h;h=10564944bb8468854ae1b9d3131506a546ce8522;hb=437b5e9a1c7245fb99ddcf114b6b1bce36ae69f7;hp=c81a2a4602268cd82069deb037895903ae685d15;hpb=58a1f71afe0d96e74751f30a089fd4146bc503f2;p=util-vserver.git diff --git a/util-vserver/lib/vserver.h b/util-vserver/lib/vserver.h index c81a2a4..1056494 100644 --- a/util-vserver/lib/vserver.h +++ b/util-vserver/lib/vserver.h @@ -1,29 +1,117 @@ -// $Id$ - -// Copyright (C) 2003 Enrico Scholz -// -// This program is free software; you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation; either version 2, or (at your option) -// any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +/* $Id$ + +* Copyright (C) 2003 Enrico Scholz +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2, or (at your option) +* any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +*/ #ifndef H_VSERVER_SYSCALL_H #define H_VSERVER_SYSCALL_H #include #include +#include #include -#define VC_NOCTX ((ctx_t)(-1)) +/** the value which is returned in error-case (no ctx found) */ +#define VC_NOCTX ((xid_t)(-1)) +/** the value which means a random (the next free) ctx */ +#define VC_RANDCTX ((xid_t)(-1)) +/** the value which means the current ctx */ +#define VC_SAMECTX ((xid_t)(-2)) + +#define VC_LIM_INFINITY (~0ULL) +#define VC_LIM_KEEP (~1ULL) + + +#ifndef S_CTX_INFO_LOCK +# define S_CTX_INFO_LOCK 1 +#endif + +#ifndef S_CTX_INFO_SCHED +# define S_CTX_INFO_SCHED 2 +#endif + +#ifndef S_CTX_INFO_NPROC +# define S_CTX_INFO_NPROC 4 +#endif + +#ifndef S_CTX_INFO_PRIVATE +# define S_CTX_INFO_PRIVATE 8 +#endif + +#ifndef S_CTX_INFO_INIT +# define S_CTX_INFO_INIT 16 +#endif + +#ifndef S_CTX_INFO_HIDEINFO +# define S_CTX_INFO_HIDEINFO 32 +#endif + +#ifndef S_CTX_INFO_ULIMIT +# define S_CTX_INFO_ULIMIT 64 +#endif + +#ifndef S_CTX_INFO_NAMESPACE +# define S_CTX_INFO_NAMESPACE 128 +#endif + +#define VC_CAP_CHOWN 0 +#define VC_CAP_DAC_OVERRIDE 1 +#define VC_CAP_DAC_READ_SEARCH 2 +#define VC_CAP_FOWNER 3 +#define VC_CAP_FSETID 4 +#define VC_CAP_KILL 5 +#define VC_CAP_SETGID 6 +#define VC_CAP_SETUID 7 +#define VC_CAP_SETPCAP 8 +#define VC_CAP_LINUX_IMMUTABLE 9 +#define VC_CAP_NET_BIND_SERVICE 10 +#define VC_CAP_NET_BROADCAST 11 +#define VC_CAP_NET_ADMIN 12 +#define VC_CAP_NET_RAW 13 +#define VC_CAP_IPC_LOCK 14 +#define VC_CAP_IPC_OWNER 15 +#define VC_CAP_SYS_MODULE 16 +#define VC_CAP_SYS_RAWIO 17 +#define VC_CAP_SYS_CHROOT 18 +#define VC_CAP_SYS_PTRACE 19 +#define VC_CAP_SYS_PACCT 20 +#define VC_CAP_SYS_ADMIN 21 +#define VC_CAP_SYS_BOOT 22 +#define VC_CAP_SYS_NICE 23 +#define VC_CAP_SYS_RESOURCE 24 +#define VC_CAP_SYS_TIME 25 +#define VC_CAP_SYS_TTY_CONFIG 26 +#define VC_CAP_MKNOD 27 +#define VC_CAP_LEASE 28 +#define VC_CAP_QUOTACTL 29 + +#define VC_IMMUTABLE_FILE_FL 0x00000010l +#define VC_IMMUTABLE_LINK_FL 0x00008000l +#define VC_IMMUTABLE_ALL (VC_IMMUTABLE_LINK_FL|VC_IMMUTABLE_FILE_FL) + +#define VC_IATTR_XID 0x01000000 + +#define VC_IATTR_ADMIN 0x00000001 +#define VC_IATTR_WATCH 0x00000002 +#define VC_IATTR_HIDE 0x00000004 + +#define VC_IATTR_BARRIER 0x00010000 +#define VC_IATTR_IUNLINK 0x00020000 + #ifdef __cplusplus extern "C" { @@ -34,30 +122,161 @@ extern "C" { uint32_t mask; }; - /** Returns version of the given API-category */ - int vc_get_version(int category); + /** Returns the version of the current kernel API. */ + int vc_get_version(); /** Puts current process into context , removes the given caps and * sets flags. * Special values for ctx are - * - -2 which means the current context (just for changing caps and flags) - * - -1 which means the next free context; this value can be used by - * ordinary users also */ - int vc_new_s_context(ctx_t ctx, unsigned int remove_cap, unsigned int flags); + * - VC_SAMECTX which means the current context (just for changing caps and flags) + * - VC_RANDCTX which means the next free context; this value can be used by + * ordinary users also + * See http://vserver.13thfloor.at/Stuff/Logic.txt for details */ + xid_t vc_new_s_context(xid_t ctx, unsigned int remove_cap, unsigned int flags); /** Sets the ipv4root information. * \precondition: nb<16 */ int vc_set_ipv4root(uint32_t bcast, size_t nb, struct vc_ip_mask_pair const *ips); - int vc_chrootsafe(char const *dir); + /* rlimit related functions */ + typedef uint64_t vc_limit_t; + + + struct vc_rlimit { + vc_limit_t min; + vc_limit_t soft; + vc_limit_t hard; + }; + + struct vc_rlimit_mask { + uint32_t min; + uint32_t soft; + uint32_t hard; + }; + + int vc_get_rlimit(xid_t ctx, int resource, struct vc_rlimit *lim); + int vc_set_rlimit(xid_t ctx, int resource, struct vc_rlimit const *lim); + int vc_get_rlimit_mask(xid_t ctx, struct vc_rlimit_mask *lim); - /** Returns the context of the given process. */ - ctx_t vc_X_getctx(pid_t pid); + /** sends a signal to a context/pid + Special values for pid are: + * -1 which means every process in ctx except the init-process + * 0 which means every process in ctx inclusive the init-process */ + int vc_ctx_kill(xid_t ctx, pid_t pid, int sig); - /** Returns the context of the current process. */ -#define vc_X_getcctx() (vc_X_getctx(getpid())) - + + + int vc_set_iattr(char const *filename, xid_t xid, uint32_t flags, uint32_t mask); + int vc_get_iattr(char const *filename, xid_t * /*@null@*/ xid, + uint32_t * /*@null@*/ flags, uint32_t * /*@null@*/ mask); + + struct vc_vx_info { + xid_t xid; + pid_t initpid; + }; + + /** Returns the context of the given process. pid==0 means the current process. */ + xid_t vc_get_task_xid(pid_t pid); + int vc_get_vx_info(xid_t xid, struct vc_vx_info *info); + + + typedef enum { vcVHI_CONTEXT, vcVHI_SYSNAME, vcVHI_NODENAME, + vcVHI_RELEASE, vcVHI_VERSION, vcVHI_MACHINE, + vcVHI_DOMAINNAME } vc_uts_type; + + int vc_set_vhi_name(xid_t xid, vc_uts_type type, char const *val, size_t len); + int vc_get_vhi_name(xid_t xid, vc_uts_type type, char *val, size_t len); + + + int vc_enter_namespace(xid_t xid); + + + uint32_t vc_textlist2flag(char const *, size_t len, + char const **err_ptr, size_t *err_len); + uint32_t vc_text2flag(char const *, size_t len); + char const * vc_hiflag2text(unsigned int); + + int vc_text2cap(char const *); + char const * vc_cap2text(unsigned int); + + inline static int vc_get_securecaps() { + return ( (1<