-// $Id: vserver-internal.h,v 1.1.4.14 2004/02/14 00:25:34 ensc Exp $ --*- c++ -*--
+// $Id: vserver-internal.h 2446 2007-01-09 13:22:11Z dhozac $ --*- c++ -*--
// Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#ifdef H_VSERVER_SYSCALL_INTERNAL_H
+# error vserver-internal.h must not be included more than once
+#endif
#ifndef H_VSERVER_SYSCALL_INTERNAL_H
#define H_VSERVER_SYSCALL_INTERNAL_H
-#include <stdint.h>
-#include <stdlib.h>
-#include <syscall.h>
-#include <unistd.h>
#include <asm/unistd.h>
#include <errno.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "internal.h"
+#include "syscall-wrap.h"
#if !defined(__NR_vserver) && defined(ENSC_SYSCALL__NR_vserver)
# define __NR_vserver ENSC_SYSCALL__NR_vserver
#endif
+inline static ALWAYSINLINE void vc_noop0() {}
+
#define VC_PREFIX 0)
-#define VC_SUFFIX else (void)((void)0
-#define CALL_VC_NOOP (void)0
+#define VC_SUFFIX else (void)(vc_noop0()
+#define CALL_VC_NOOP vc_noop0()
#define CALL_VC_GENERAL(ID, SUFFIX, FUNC, ...) \
VC_PREFIX; VC_SELECT(ID) return FUNC ## _ ## SUFFIX(__VA_ARGS__); VC_SUFFIX
+#define CALL_VC_GENERAL_CONFIG(BIT, SUFFIX, FUNC, ...) \
+ VC_PREFIX; VC_CBIT(BIT) return FUNC ## _ ## SUFFIX(__VA_ARGS__); VC_SUFFIX
-#if 1
-# define VC_SELECT(ID) case ID: if(1)
+#ifdef VC_MULTIVERSION_SYSCALL
+# define VC_SELECT(ID) if (ver>=(ID))
+# define VC_CBIT(BIT) if ((conf&BIT) == BIT)
# define CALL_VC(...) \
- switch (utilvserver_checkCompatVersion()&~0xff) { \
- case -1 & 0xff : if (1) break; \
- VC_SUFFIX, __VA_ARGS__ , VC_PREFIX; \
- default : errno = EINVAL; \
- } \
- return -1
+ do { \
+ int ver = utilvserver_checkCompatVersion(); \
+ uint_least32_t conf = utilvserver_checkCompatConfig(); \
+ if (ver==-1) return -1; \
+ VC_SUFFIX, __VA_ARGS__, VC_PREFIX; \
+ errno = ENOSYS; \
+ return -1; \
+ } while (0)
#else
# define VC_SELECT(ID) if (1)
-# define CALL_VC(...) \
- if (1) {} VC_SUFFIX, __VA_ARGS__, VC_PREFIX; \
- errno = ENOSYS; return -1
+# define VC_CBIT(BIT) if (1)
+# define CALL_VC(...) \
+ do { \
+ if (1) {} VC_SUFFIX, __VA_ARGS__, VC_PREFIX; \
+ errno = ENOSYS; return -1; \
+ } while (0)
#endif
#ifdef VC_ENABLE_API_COMPAT
# define CALL_VC_V11(F,...) CALL_VC_NOOP
#endif
+#ifdef VC_ENABLE_API_V13
+# define CALL_VC_V13(F,...) CALL_VC_GENERAL(0x00010011, v13, F, __VA_ARGS__)
+#else
+# define CALL_VC_V13(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_V13
+# define CALL_VC_V13A(F,...) CALL_VC_GENERAL(0x00010012, v13, F, __VA_ARGS__)
+#else
+# define CALL_VC_V13A(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_V13
+# define CALL_VC_V13B(F,...) CALL_VC_GENERAL(0x00010021, v13b, F, __VA_ARGS__)
+#else
+# define CALL_VC_V13B(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_V13OBS
+# define CALL_VC_V13OBS(F,...) CALL_VC_GENERAL(0x00010011, v13obs, F, __VA_ARGS__)
+#else
+# define CALL_VC_V13OBS(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_V21
+# define CALL_VC_V21(F,...) CALL_VC_GENERAL(0x00020100, v21, F, __VA_ARGS__)
+#else
+# define CALL_VC_V21(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_V21
+# define CALL_VC_SPACES(F,...) CALL_VC_GENERAL_CONFIG(VC_VCI_SPACES, spaces, F, __VA_ARGS__)
+#else
+# define CALL_VC_SPACES(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_NET
+# define CALL_VC_NET(F,...) CALL_VC_GENERAL(0x00010016, net, F, __VA_ARGS__)
+#else
+# define CALL_VC_NET(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_FSCOMPAT
+# define CALL_VC_FSCOMPAT(F,...) CALL_VC_GENERAL(0x00010000, fscompat, F, __VA_ARGS__)
+#else
+# define CALL_VC_FSCOMPAT(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_OLDPROC
+# define CALL_VC_OLDPROC(F,...) CALL_VC_GENERAL(0x00000000, oldproc, F, __VA_ARGS__)
+#else
+# define CALL_VC_OLDPROC(F,...) CALL_VC_NOOP
+#endif
+
+#ifdef VC_ENABLE_API_OLDUTS
+# define CALL_VC_OLDUTS(F,...) CALL_VC_GENERAL(0x00000000, olduts, F, __VA_ARGS__)
+#else
+# define CALL_VC_OLDUTS(F,...) CALL_VC_NOOP
+#endif
+
+
+ // Some kernel <-> userspace wrappers; they should be noops in most cases
+
#if 1
# define CTX_KERNEL2USER(X) (((X)==(uint32_t)(-1)) ? VC_NOCTX : \
((X)==(uint32_t)(-2)) ? VC_SAMECTX : \
(xid_t)(X))
-# define CTX_USER2KERNEL(X) (((X)==VC_RANDCTX) ? (uint32_t)(-1) : \
- ((X)==VC_SAMECTX) ? (uint32_t)(-2) : \
+# define CTX_USER2KERNEL(X) (((X)==VC_DYNAMIC_XID) ? (uint32_t)(-1) : \
+ ((X)==VC_SAMECTX) ? (uint32_t)(-2) : \
(uint32_t)(X))
#else
# define CTX_USER2KERNEL(X) (X)
# define CTX_KERNEL2USER(X) (X)
#endif
-#ifdef __cplusplus
-extern "C" {
+#if 1
+# define EXT2FLAGS_USER2KERNEL(X) (((X) & ~(VC_IMMUTABLE_FILE_FL|VC_IMMUTABLE_LINK_FL)) | \
+ ((X) & VC_IMMUTABLE_FILE_FL ? EXT2_IMMUTABLE_FILE_FL : 0) | \
+ ((X) & VC_IMMUTABLE_LINK_FL ? EXT2_IMMUTABLE_LINK_FL : 0))
+# define EXT2FLAGS_KERNEL2USER(X) (((X) & ~(EXT2_IMMUTABLE_FILE_FL|EXT2_IMMUTABLE_LINK_FL)) | \
+ ((X) & EXT2_IMMUTABLE_FILE_FL ? VC_IMMUTABLE_FILE_FL : 0) | \
+ ((X) & EXT2_IMMUTABLE_LINK_FL ? VC_IMMUTABLE_LINK_FL : 0))
+#else
+# define EXT2FLAGS_KERNEL2USER(X) (X)
+# define EXT2FLAGS_USER2KERNEL(X) (X)
+#endif
+
+#if 1
+# define VHI_USER2KERNEL(X) ((((X)==vcVHI_CONTEXT) ? VHIN_CONTEXT : \
+ ((X)==vcVHI_SYSNAME) ? VHIN_SYSNAME : \
+ ((X)==vcVHI_NODENAME) ? VHIN_NODENAME : \
+ ((X)==vcVHI_RELEASE) ? VHIN_RELEASE : \
+ ((X)==vcVHI_VERSION) ? VHIN_VERSION : \
+ ((X)==vcVHI_MACHINE) ? VHIN_MACHINE : \
+ ((X)==vcVHI_DOMAINNAME) ? VHIN_DOMAINNAME : \
+ (X)))
+# define VHI_KERNEL2USER(X) ((((X)==VHIN_CONTEXT) ? vcVHI_CONTEXT : \
+ ((X)==VHIN_SYSNAME) ? vcVHI_SYSNAME : \
+ ((X)==VHIN_NODENAME) ? vcVHI_NODENAME : \
+ ((X)==VHIN_RELEASE) ? vcVHI_RELEASE : \
+ ((X)==VHIN_VERSION) ? vcVHI_VERSION : \
+ ((X)==VHIN_MACHINE) ? vcVHI_MACHINE : \
+ ((X)==VHIN_DOMAINNAME) ? vcVHI_DOMAINNAME : \
+ (X)))
+#else
+# define VHI_USER2KERNEL(X) (X)
+# define VHI_KERNEL2USER(X) (X)
+#endif
+
+#if 1
+# define NID_KERNEL2USER(X) (((X)==(uint32_t)(-1)) ? VC_NONID : \
+ (xid_t)(X))
+
+# define NID_USER2KERNEL(X) (((X)==VC_DYNAMIC_NID) ? (uint32_t)(-1) : \
+ (uint32_t)(X))
+#else
+# define NID_USER2KERNEL(X) (X)
+# define NID_KERNEL2USER(X) (X)
+#endif
+
+#if 1
+# define NETTYPE_USER2KERNEL(X) ((X)==vcNET_IPV4 ? NXA_TYPE_IPV4 : \
+ (X)==vcNET_IPV6 ? NXA_TYPE_IPV6 : \
+ (X)==vcNET_IPV4B ? (NXA_TYPE_IPV4 | NXA_MOD_BCAST) : \
+ (X)==vcNET_IPV6B ? (NXA_TYPE_IPV6 | NXA_MOD_BCAST) : \
+ (X)==vcNET_ANY ? NXA_TYPE_ANY : \
+ (X))
+# define NETTYPE_KERNEL2USER(X) ((X)==NXA_TYPE_IPV4 ? vcNET_IPV4 : \
+ (X)==NXA_TYPE_IPV6 ? vcNET_IPV6 : \
+ (X)==(NXA_TYPE_IPV4|NXA_MOD_BCAST) ? vcNET_IPV4B : \
+ (X)==(NXA_TYPE_IPV6|NXA_MOD_BCAST) ? vcNET_IPV6B : \
+ (X)==NXA_TYPE_ANY ? vcNET_ANY : \
+ (X))
+#else
+# define NETTYPE_USER2KERNEL(X) (X)
+# define NETTYPE_KERNEL2USER(X) (X)
#endif
+#define CDLIM_USER2KERNEL(X) ((X)==VC_CDLIM_UNSET ? CDLIM_UNSET : \
+ (X)==VC_CDLIM_INFINITY ? CDLIM_INFINITY : \
+ (X)==VC_CDLIM_KEEP ? CDLIM_KEEP : \
+ (X))
+
+ /// the __typeof__ thing is a hack to deal with the kernel interface
+ /// using an unsigned long long value for a uint32_t type
+#define CDLIM_KERNEL2USER(X) ((X)==(__typeof__(X))CDLIM_UNSET ? VC_CDLIM_UNSET : \
+ (X)==(__typeof__(X))CDLIM_INFINITY ? VC_CDLIM_INFINITY : \
+ (X)==(__typeof__(X))CDLIM_KEEP ? VC_CDLIM_KEEP : \
+ (X))
+
+
+#define ENSC_STRUCT_IDX(STRUCT,ATTR) \
+ ((char*)(&(STRUCT).ATTR) - (char*)(&(STRUCT)))
+#define ENSC_SAME_STRUCT_IDX(LHS,RHS,ATTR) \
+ (ENSC_STRUCT_IDX(LHS,ATTR) == ENSC_STRUCT_IDX(RHS,ATTR))
+#define ENSC_SAME_STRUCT_ITEM(LHS,RHS,ATTR) \
+ (ENSC_SAME_STRUCT_IDX(LHS,RHS,ATTR) && \
+ sizeof((LHS).ATTR)==sizeof((RHS).ATTR) && \
+ sizeof(LHS)==sizeof(RHS))
+
+#define EXT2_IOC_GETCONTEXT _IOR('x', 1, long)
+#define EXT2_IOC_SETCONTEXT _IOW('x', 2, long)
+
#ifndef HAVE_VSERVER
#ifdef ENSC_SYSCALL_TRADITIONAL
inline static UNUSED ALWAYSINLINE
#endif
#endif
-size_t utilvserver_uint2str(char *buf, size_t len,
- unsigned int val, unsigned char base);
-int utilvserver_checkCompatVersion();
-
-#ifdef __cplusplus
-}
-#endif
-
-
#endif // H_VSERVER_SYSCALL_INTERNAL_H
git://git.onelab.eu / util-vserver.git / blobdiff