/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
/* Only needed for xdr.h in glibc 2.1.x */
#ifndef quad_t
-#define quad_t __quad_t
-#define u_quad_t __u_quad_t
+# define quad_t __quad_t
+# define u_quad_t __u_quad_t
#endif
#undef getuerror
-#define getpid() current->pid
-#ifdef STRUCT_TASK_STRUCT_HAS_REAL_PARENT
-#define getppid() current->real_parent->pid
-#else
-#define getppid() current->p_opptr->pid
-#endif
+#ifdef STRUCT_TASK_STRUCT_HAS_TGID
+# define getpid() current->tgid
+# ifdef STRUCT_TASK_STRUCT_HAS_REAL_PARENT
+# define getppid() current->real_parent->tgid
+# elif defined(STRUCT_TASK_STRUCT_HAS_PARENT)
+# define getppid() current->parent->tgid
+# else
+# define getppid() current->p_opptr->tgid
+# endif
+#else /* !STRUCT_TASK_STRUCT_HAS_TGID */
+# define getpid() current->pid
+# ifdef STRUCT_TASK_STRUCT_HAS_REAL_PARENT
+# define getppid() current->real_parent->pid
+# elif defined(STRUCT_TASK_STRUCT_HAS_PARENT)
+# define getppid() current->parent->pid
+# else
+# define getppid() current->p_opptr->pid
+# endif
+#endif /* STRUCT_TASK_STRUCT_HAS_TGID */
#ifdef RECALC_SIGPENDING_TAKES_VOID
-#define RECALC_SIGPENDING(X) recalc_sigpending()
+# define RECALC_SIGPENDING(X) recalc_sigpending()
#else
-#define RECALC_SIGPENDING(X) recalc_sigpending(X)
+# define RECALC_SIGPENDING(X) recalc_sigpending(X)
#endif
#if defined (STRUCT_TASK_STRUCT_HAS_SIGMASK_LOCK)
-#define SIG_LOCK(X) spin_lock_irq(&X->sigmask_lock)
-#define SIG_UNLOCK(X) spin_unlock_irq(&X->sigmask_lock)
+# define SIG_LOCK(X) spin_lock_irq(&X->sigmask_lock)
+# define SIG_UNLOCK(X) spin_unlock_irq(&X->sigmask_lock)
#elif defined (STRUCT_TASK_STRUCT_HAS_SIGHAND)
-#define SIG_LOCK(X) spin_lock_irq(&X->sighand->siglock)
-#define SIG_UNLOCK(X) spin_unlock_irq(&X->sighand->siglock)
+# define SIG_LOCK(X) spin_lock_irq(&X->sighand->siglock)
+# define SIG_UNLOCK(X) spin_unlock_irq(&X->sighand->siglock)
#else
-#define SIG_LOCK(X) spin_lock_irq(&X->sig->siglock)
-#define SIG_UNLOCK(X) spin_unlock_irq(&X->sig->siglock)
+# define SIG_LOCK(X) spin_lock_irq(&X->sig->siglock)
+# define SIG_UNLOCK(X) spin_unlock_irq(&X->sig->siglock)
#endif
#if defined (STRUCT_TASK_STRUCT_HAS_RLIM)
-#define TASK_STRUCT_RLIM rlim
+# define TASK_STRUCT_RLIM rlim
#elif defined (STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM)
-#define TASK_STRUCT_RLIM signal->rlim
+# define TASK_STRUCT_RLIM signal->rlim
#else
-#error Not sure what to do about rlim (should be in the Linux task struct somewhere....)
+# error Not sure what to do about rlim (should be in the Linux task struct somewhere....)
#endif
#define afs_hz HZ
#include "h/sched.h"
-#define osi_Time() (xtime.tv_sec)
-#ifdef AFS_LINUX_64BIT_KERNEL
-#define osi_GetTime(V) \
+/* in case cred.h is present but not included in sched.h */
+#if defined(HAVE_LINUX_CRED_H)
+#include "h/cred.h"
+#endif
+
+#if !defined(HAVE_LINUX_TIME_T)
+typedef time64_t time_t;
+#endif
+
+#if defined(HAVE_LINUX_KTIME_GET_COARSE_REAL_TS64)
+static inline time_t osi_Time(void) {
+ struct timespec64 xtime;
+ ktime_get_coarse_real_ts64(&xtime);
+ return xtime.tv_sec;
+}
+#elif defined(HAVE_LINUX_CURRENT_KERNEL_TIME)
+static inline time_t osi_Time(void) {
+ struct timespec xtime;
+ xtime = current_kernel_time();
+ return xtime.tv_sec;
+}
+#else
+# define osi_Time() (xtime.tv_sec)
+#endif
+
+#if defined(HAVE_LINUX_KTIME_GET_REAL_TS64)
+# define osi_GetTime(V) \
+ do { \
+ struct timespec64 __afs_tv; \
+ ktime_get_real_ts64(&__afs_tv); \
+ (V)->tv_sec = (afs_int32)__afs_tv.tv_sec; \
+ (V)->tv_usec = (afs_int32)__afs_tv.tv_nsec / 1000; \
+ } while(0)
+#elif defined(AFS_LINUX_64BIT_KERNEL)
+# define osi_GetTime(V) \
do { \
struct timeval __afs_tv; \
do_gettimeofday(&__afs_tv); \
(V)->tv_usec = (afs_int32)__afs_tv.tv_usec; \
} while (0)
#else
-#define osi_GetTime(V) do_gettimeofday((V))
+# define osi_GetTime(V) do_gettimeofday((V))
#endif
#undef gop_lookupname
#define gop_lookupname osi_lookupname
-#define osi_vnhold(v, n) do { VN_HOLD(AFSTOV(v)); } while (0)
+#undef gop_lookupname_user
+#define gop_lookupname_user osi_lookupname
-#if defined(AFS_LINUX24_ENV)
-#define VN_HOLD(V) atomic_inc(&((vnode_t *) V)->i_count)
-#else
-#define VN_HOLD(V) ((vnode_t *) V)->i_count++
-#endif
-
-#if defined(AFS_LINUX24_ENV)
-#define VN_RELE(V) iput((struct inode *) V)
-#else
-#define VN_RELE(V) osi_iput((struct inode *) V)
-#endif
-
-#define osi_AllocSmall afs_osi_Alloc
-#define osi_FreeSmall afs_osi_Free
+#define osi_vnhold(V, N) do { VN_HOLD(AFSTOV(V)); } while (0)
+#define VN_HOLD(V) osi_Assert(igrab((V)) == (V))
+#define VN_RELE(V) iput((V))
#define afs_suser(x) capable(CAP_SYS_ADMIN)
-#define wakeup afs_osi_Wakeup
+extern int afs_osi_Wakeup(void *event);
+static inline void
+wakeup(void *event)
+{
+ afs_osi_Wakeup(event);
+}
-#undef vType
-#define vType(V) ((( vnode_t *)V)->v_type & S_IFMT)
+#define vType(V) ((AFSTOV((V)))->i_mode & S_IFMT)
+#define vSetType(V, type) AFSTOV((V))->i_mode = ((type) | (AFSTOV((V))->i_mode & ~S_IFMT)) /* preserve mode */
+#define vSetVfsp(V, vfsp) /* unused */
+#define IsAfsVnode(V) ((V)->i_sb == afs_globalVFS) /* test superblock instead */
+#define SetAfsVnode(V) /* unnecessary */
-/* IsAfsVnode relies on the fast that there is only one vnodeop table for AFS.
- * Use the same type of test as other OS's for compatibility.
- */
-#undef IsAfsVnode
-extern struct vnodeops afs_file_iops, afs_dir_iops, afs_symlink_iops;
-#define IsAfsVnode(v) (((v)->v_op == &afs_file_iops) ? 1 : \
- ((v)->v_op == &afs_dir_iops) ? 1 : \
- ((v)->v_op == &afs_symlink_iops))
-#undef SetAfsVnode
-#define SetAfsVnode(v)
-
-/* We often need to pretend we're in user space to get memory transfers
- * right for the kernel calls we use.
- */
+#if defined(HAVE_LINUX_UACCESS_H)
+#include <linux/uaccess.h>
+#else
#include <asm/uaccess.h>
-
-#ifdef KERNEL_SPACE_DECL
-#undef KERNEL_SPACE_DECL
-#undef TO_USER_SPACE
-#undef TO_KERNEL_SPACE
#endif
-#define KERNEL_SPACE_DECL mm_segment_t _fs_space_decl
-#define TO_USER_SPACE() { _fs_space_decl = get_fs(); set_fs(get_ds()); }
-#define TO_KERNEL_SPACE() set_fs(_fs_space_decl)
#define copyin(F, T, C) (copy_from_user ((char*)(T), (char*)(F), (C)) > 0 ? EFAULT : 0)
static inline long copyinstr(char *from, char *to, int count, int *length) {
#define copyout(F, T, C) (copy_to_user ((char*)(T), (char*)(F), (C)) > 0 ? EFAULT : 0)
/* kernel print statements */
-#define printf printk
-#define uprintf printk
+#define printf(args...) printk(args)
+#define uprintf(args...) printk(args)
-#define PAGESIZE PAGE_SIZE
#ifndef NGROUPS
#define NGROUPS NGROUPS_SMALL
#endif
-/* cred struct */
-typedef struct cred { /* maps to task field: */
- int cr_ref;
- uid_t cr_uid; /* euid */
- uid_t cr_ruid; /* uid */
- gid_t cr_gid; /* egid */
- gid_t cr_rgid; /* gid */
-#if defined(AFS_LINUX26_ENV)
- struct group_info *cr_group_info;
+#ifdef STRUCT_GROUP_INFO_HAS_GID
+/* compat macro for Linux 4.9 */
+#define GROUP_AT(gi,x) ((gi)->gid[x])
+#endif
+
+typedef struct task_struct afs_proc_t;
+
+#ifdef HAVE_LINUX_KUID_T
+
+#include <linux/uidgid.h>
+typedef kuid_t afs_kuid_t;
+typedef kgid_t afs_kgid_t;
+extern struct user_namespace *afs_ns;
+# ifdef CONFIG_USER_NS
+# define afs_current_user_ns() current_user_ns()
+# else
+/* Here current_user_ns() expands to GPL-only init_user_ns symbol! */
+# define afs_current_user_ns() ((struct user_namespace *)NULL)
+# endif
+
+static inline kuid_t afs_make_kuid(uid_t uid) {
+ return make_kuid(afs_ns, uid);
+}
+static inline kgid_t afs_make_kgid(gid_t gid) {
+ return make_kgid(afs_ns, gid);
+}
+static inline uid_t afs_from_kuid(kuid_t kuid) {
+ return from_kuid(afs_ns, kuid);
+}
+static inline uid_t afs_from_kgid(kgid_t kgid) {
+ return from_kgid(afs_ns, kgid);
+}
+
#else
- gid_t cr_groups[NGROUPS]; /* 32 groups - empty set to NOGROUP */
- int cr_ngroups;
+
+typedef uid_t afs_kuid_t;
+typedef gid_t afs_kgid_t;
+
+static inline afs_kuid_t afs_make_kuid(uid_t uid) {return uid;}
+static inline afs_kgid_t afs_make_kgid(gid_t gid) {return gid;}
+static inline uid_t afs_from_kuid(afs_kuid_t kuid) {return kuid;}
+static inline gid_t afs_from_kgid(afs_kgid_t kgid) {return kgid;}
+static inline unsigned char uid_eq(uid_t a, uid_t b) {return a == b;}
+static inline unsigned char gid_eq(gid_t a, gid_t b) {return a == b;}
+static inline unsigned char uid_lt(uid_t a, uid_t b) {return a < b;}
+static inline unsigned char gid_lt(gid_t a, gid_t b) {return a < b;}
+#define GLOBAL_ROOT_UID ((afs_kuid_t) 0)
+#define GLOBAL_ROOT_GID ((afs_kgid_t) 0)
+
#endif
- struct cred *cr_next;
+
+/* Credentials. For newer kernels we use the kernel structure directly. */
+#if defined(STRUCT_TASK_STRUCT_HAS_CRED)
+
+typedef struct cred afs_ucred_t;
+typedef struct cred cred_t;
+
+# define afs_cr_uid(cred) (afs_from_kuid((cred)->fsuid))
+# define afs_cr_gid(cred) (afs_from_kgid((cred)->fsgid))
+# define afs_cr_ruid(cred) (afs_from_kuid((cred)->uid))
+# define afs_cr_rgid(cred) (afs_from_kgid((cred)->gid))
+# define afs_cr_group_info(cred) ((cred)->group_info)
+# define crhold(c) (get_cred(c))
+static inline void
+afs_set_cr_uid(cred_t *cred, uid_t uid) {
+ cred->fsuid = afs_make_kuid(uid);
+}
+static inline void
+afs_set_cr_gid(cred_t *cred, gid_t gid) {
+ cred->fsgid = afs_make_kgid(gid);
+}
+static inline void
+afs_set_cr_ruid(cred_t *cred, uid_t uid) {
+ cred->uid = afs_make_kuid(uid);
+}
+static inline void
+afs_set_cr_rgid(cred_t *cred, gid_t gid) {
+ cred->gid = afs_make_kgid(gid);
+}
+static inline void
+afs_set_cr_group_info(cred_t *cred, struct group_info *group_info) {
+ cred->group_info = group_info;
+}
+
+# define current_group_info() (current->cred->group_info)
+# define task_gid(task) (task->cred->gid)
+# define task_user(task) (task->cred->user)
+# if defined(STRUCT_CRED_HAS_SESSION_KEYRING)
+# define task_session_keyring(task) (task->cred->session_keyring)
+# define current_session_keyring() (current->cred->session_keyring)
+# else
+# define task_session_keyring(task) (task->cred->tgcred->session_keyring)
+# define current_session_keyring() (current->cred->tgcred->session_keyring)
+# endif
+
+#else
+
+typedef struct afs_cred {
+ atomic_t cr_ref;
+ uid_t cr_uid;
+ uid_t cr_ruid;
+ gid_t cr_gid;
+ gid_t cr_rgid;
+ struct group_info *cr_group_info;
} cred_t;
-#define AFS_UCRED cred
-#define AFS_PROC struct task_struct
-#define crhold(c) (c)->cr_ref++
+
+typedef struct afs_cred afs_ucred_t;
+# define afs_cr_group_info(cred) ((cred)->cr_group_info)
+static inline void
+afs_set_cr_group_info(cred_t *cred, struct group_info *group_info) {
+ cred->cr_group_info = group_info;
+}
+
+# define current_group_info() (current->group_info)
+# if !defined(task_gid)
+# define task_gid(task) (task->gid)
+# endif
+# if !defined(task_uid)
+# define task_uid(task) (task->uid)
+# endif
+# define task_user(task) (task->user)
+# define task_session_keyring(task) (task->signal->session_keyring)
+# define current_session_keyring() (current->signal->session_keyring)
+# define crhold(c) atomic_inc(&(c)->cr_ref)
+
+#endif /* defined(STRUCT_TASK_STRUCT_HAS_CRED) */
+
+#if !defined(current_cred)
+# define current_gid() (current->gid)
+# define current_uid() (current->uid)
+# define current_fsgid() (current->fsgid)
+# define current_fsuid() (current->fsuid)
+#endif
/* UIO manipulation */
typedef enum { AFS_UIOSYS, AFS_UIOUSER } uio_seg_t;
typedef enum { UIO_READ, UIO_WRITE } uio_flag_t;
-typedef struct uio {
+struct uio {
struct iovec *uio_iov;
int uio_iovcnt;
afs_offs_t uio_offset;
uio_seg_t uio_seg;
int uio_resid;
uio_flag_t uio_flag;
-} uio_t;
+};
#define afsio_iov uio_iov
#define afsio_iovcnt uio_iovcnt
#define afsio_offset uio_offset
/* Get/set the inode in the osifile struct. */
#define FILE_INODE(F) (F)->f_dentry->d_inode
-#ifdef AFS_LINUX24_ENV
#define OSIFILE_INODE(a) FILE_INODE((a)->filp)
-#else
-#define OSIFILE_INODE(a) FILE_INODE(&(a)->file)
-#endif
#if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV)
-#define NEED_IOCTL32
+# define NEED_IOCTL32
#endif
-/* page offset is obtained and stored here during module initialization
- * We need a variable to do this because, the PAGE_OFFSET macro defined in
- * include/asm/page.h can change from kernel to kernel and we cannot use
- * the hardcoded version.
- */
-extern unsigned long afs_linux_page_offset;
-
-/* function to help with the page offset stuff */
-#define afs_linux_page_address(page) (afs_linux_page_offset + PAGE_SIZE * (page - mem_map))
-
-#if defined(__KERNEL__)
-#include "../h/sched.h"
-#include "linux/wait.h"
+#include <linux/version.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+extern struct mutex afs_global_lock;
+#else
extern struct semaphore afs_global_lock;
+# define mutex_lock(lock) down(lock)
+# define mutex_unlock(lock) up(lock)
+#endif
extern int afs_global_owner;
#define AFS_GLOCK() \
do { \
- down(&afs_global_lock); \
+ mutex_lock(&afs_global_lock); \
if (afs_global_owner) \
osi_Panic("afs_global_lock already held by pid %d", \
afs_global_owner); \
if (!ISAFS_GLOCK()) \
osi_Panic("afs global lock not held at %s:%d", __FILE__, __LINE__); \
afs_global_owner = 0; \
- up(&afs_global_lock); \
+ mutex_unlock(&afs_global_lock); \
} while (0)
-
-#else
-#define AFS_GLOCK()
-#define AFS_GUNLOCK()
-#define ISAFS_GLOCK() 1
-#define AFS_ASSERT_GLOCK()
+#define osi_InitGlock()
+
+#ifdef AFS_AMD64_LINUX20_ENV
+/* RHEL5 beta's kernel doesn't define these. They aren't gonna change, so... */
+
+# ifndef __NR_ia32_afs_syscall
+# define __NR_ia32_afs_syscall 137
+# endif
+# ifndef __NR_ia32_setgroups
+# define __NR_ia32_setgroups 81
+# endif
+# ifndef __NR_ia32_setgroups32
+# define __NR_ia32_setgroups32 206
+# endif
+# ifndef __NR_ia32_close
+# define __NR_ia32_close 6
+# endif
+# ifndef __NR_ia32_chdir
+# define __NR_ia32_chdir 12
+# endif
+# ifndef __NR_ia32_break
+# define __NR_ia32_break 17
+# endif
+# ifndef __NR_ia32_stty
+# define __NR_ia32_stty 31
+# endif
+# ifndef __NR_ia32_gtty
+# define __NR_ia32_gtty 32
+# endif
+# ifndef __NR_ia32_ftime
+# define __NR_ia32_ftime 35
+# endif
+# ifndef __NR_ia32_prof
+# define __NR_ia32_prof 44
+# endif
+# ifndef __NR_ia32_lock
+# define __NR_ia32_lock 53
+# endif
+# ifndef __NR_ia32_mpx
+# define __NR_ia32_mpx 56
+# endif
+# ifndef __NR_ia32_exit
+# define __NR_ia32_exit 1
+# endif
+# ifndef __NR_ia32_mount
+# define __NR_ia32_mount 21
+# endif
+# ifndef __NR_ia32_read
+# define __NR_ia32_read 3
+# endif
+# ifndef __NR_ia32_write
+# define __NR_ia32_write 4
+# endif
+# ifndef __NR_ia32_open
+# define __NR_ia32_open 5
+# endif
+# ifndef __NR_ia32_close
+# define __NR_ia32_close 6
+# endif
+# ifndef __NR_ia32_unlink
+# define __NR_ia32_unlink 10
+# endif
#endif
+#define osi_procname(procname, size) strncpy(procname, current->comm, size)
+
#endif /* OSI_MACHDEP_H_ */
git://git.openafs.org / openafs.git / blobdiff