*
*/
#include <afsconfig.h>
-#include "../afs/param.h"
+#include "afs/param.h"
-RCSID("$Header$");
-#include "../afs/sysincludes.h"
-#include "../afs/afsincludes.h"
-#include "../h/unistd.h" /* For syscall numbers. */
-#include "../h/mm.h"
+#include <linux/module.h> /* early to avoid printf->printk mapping */
+#include "afs/sysincludes.h"
+#include "afsincludes.h"
+#include <linux/unistd.h> /* For syscall numbers. */
+#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-#include <linux/init.h>
+#ifdef AFS_AMD64_LINUX_ENV
+#include <asm/ia32_unistd.h>
#endif
+#include <linux/proc_fs.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include "osi_pagecopy.h"
-#ifdef AFS_SPARC64_LINUX24_ENV
-#define __NR_setgroups32 82 /* This number is not exported for some bizarre reason. */
-#endif
-
-asmlinkage int (*sys_settimeofdayp)(struct timeval *tv, struct timezone *tz);
-#if !defined(AFS_ALPHA_LINUX20_ENV)
-asmlinkage int (*sys_socketcallp)(int call, long *args);
-#endif /* no socketcall on alpha */
-asmlinkage int (*sys_killp)(int pid, int signal);
-asmlinkage long (*sys_setgroupsp)(int gidsetsize, gid_t *grouplist);
-
-#ifdef AFS_SPARC64_LINUX20_ENV
-extern unsigned int sys_call_table[]; /* changed to uint because SPARC64 has syscaltable of 32bit items */
-#else
-extern void * sys_call_table[]; /* safer for other linuces */
-#endif
-extern struct file_system_type afs_file_system;
-
-static long get_page_offset(void);
+extern struct file_system_type afs_fs_type;
-#if defined(AFS_LINUX24_ENV)
-DECLARE_MUTEX(afs_global_lock);
-#else
-struct semaphore afs_global_lock = MUTEX;
-#endif
+DEFINE_MUTEX(afs_global_lock);
int afs_global_owner = 0;
-unsigned long afs_linux_page_offset = 0; /* contains the PAGE_OFFSET value */
-
-/* Since sys_ni_syscall is not exported, I need to cache it in order to restore
- * it.
- */
-#ifdef AFS_SPARC64_LINUX20_ENV
-static unsigned int afs_ni_syscall = 0;
-#else
-static void* afs_ni_syscall = 0;
-#endif
-
-#ifdef AFS_SPARC64_LINUX20_ENV
-static unsigned int afs_ni_syscall32 = 0;
-asmlinkage int (*sys32_setgroupsp)(int gidsetsize, __kernel_gid_t32 *grouplist);
-#if defined(__NR_setgroups32)
-asmlinkage int (*sys32_setgroups32p)(int gidsetsize, __kernel_gid_t32 *grouplist);
-#endif
-extern unsigned int sys_call_table32[];
-asmlinkage int afs_syscall32(long syscall, long parm1, long parm2, long parm3,
- long parm4, long parm5)
-{
-__asm__ __volatile__ ("
- srl %o4, 0, %o4
- mov %o7, %i7
- call afs_syscall
- srl %o5, 0, %o5
- ret
- nop
-");
-}
+#ifdef HAVE_LINUX_KUID_T
+struct user_namespace *afs_ns;
#endif
-#ifdef AFS_IA64_LINUX20_ENV
-unsigned char ia64_syscall_stub[] =
+int __init
+afs_init(void)
{
- 0x00, 0x50, 0x45, 0x16, 0x80, 0x05, // [MII] alloc r42=ar.pfs,8,3,6,0
- 0x90, 0x02, 0x00, 0x62, 0x00, 0x60, // mov r41=b0
- 0x05, 0x00, 0x01, 0x84, // mov r43=r32
- 0x00, 0x60, 0x01, 0x42, 0x00, 0x21, // [MII] mov r44=r33
- 0xd0, 0x02, 0x88, 0x00, 0x42, 0xc0, // mov r45=r34
- 0x05, 0x18, 0x01, 0x84, // mov r46=r35
- 0x0d, 0x78, 0x01, 0x48, 0x00, 0x21, // [MFI] mov r47=r36
- 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, // nop.f 0x0
- 0x06, 0x08, 0x00, 0x84, // mov r48=gp;;
- 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, // [MLX] nop.m 0x0
- 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, // movl r15=0x0;;
- 0x01, 0x00, 0x00, 0x60, //
- 0x0a, 0x80, 0x20, 0x1e, 0x18, 0x14, // [MMI] ld8 r16=[r15],8;;
- 0x10, 0x00, 0x3c, 0x30, 0x20, 0xc0, // ld8 gp=[r15]
- 0x00, 0x09, 0x00, 0x07, // mov b6=r16
- 0x1d, 0x00, 0x00, 0x00, 0x01, 0x00, // [MFB] nop.m 0x0
- 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, // nop.f 0x0
- 0x68, 0x00, 0x00, 0x10, // br.call.sptk.many b0=b6;;
- 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, // [MII] nop.m 0x0
- 0x00, 0x50, 0x01, 0x55, 0x00, 0x00, // mov.i ar.pfs=r42
- 0x90, 0x0a, 0x00, 0x07, // mov b0=r41
- 0x1d, 0x08, 0x00, 0x60, 0x00, 0x21, // [MFB] mov gp=r48
- 0x00, 0x00, 0x00, 0x02, 0x00, 0x80, // nop.f 0x0
- 0x08, 0x00, 0x84, 0x00 // br.ret.sptk.many b0;;
-};
+ int err;
-void ia64_imm64_fixup(unsigned long v, void *code)
-{
- unsigned long *bundle = (unsigned long *) code;
-
- unsigned long insn;
- unsigned long slot1;
-
- insn = ((v & 0x8000000000000000) >> 27) | ((v & 0x0000000000200000)) |
- ((v & 0x00000000001f0000) << 6) | ((v & 0x000000000000ff80) << 20) |
- ((v & 0x000000000000007f) << 13);
-
- slot1 = (v & 0x7fffffffffc00000) >> 22;
-
- *bundle |= slot1 << 46;
- *(bundle+1) |= insn << 23;
- *(bundle+1) |= slot1 >> 18;
-}
-
-unsigned char *afs_syscall_stub, *afs_xsetgroups_stub;
-
-struct fptr
-{
- unsigned long ip;
- unsigned long gp;
-};
-
-#endif /* AFS_IA64_LINUX20_ENV */
-
-#ifdef AFS_LINUX24_ENV
-asmlinkage int (*sys_setgroups32p)(int gidsetsize, __kernel_gid32_t *grouplist);
-#endif
-
-#ifdef AFS_SPARC64_LINUX20_ENV
-#define POINTER2SYSCALL (unsigned int)(unsigned long)
-#define SYSCALL2POINTER (void *)(long)
-#else
-#define POINTER2SYSCALL (void *)
-#ifdef AFS_IA64_LINUX20_ENV
-#define SYSCALL2POINTER (long)
-#else
-#define SYSCALL2POINTER (void *)
-#endif
-#endif
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-int __init afs_init(void)
-#else
-int init_module(void)
-#endif
-{
-#if defined(AFS_IA64_LINUX20_ENV)
- unsigned long kernel_gp;
- static struct fptr sys_kill, sys_settimeofday, sys_setgroups;
-#endif
- extern int afs_syscall();
- extern long afs_xsetgroups();
-#if defined(__NR_setgroups32)
- extern int afs_xsetgroups32();
-#endif
-#ifdef AFS_SPARC64_LINUX20_ENV
- extern int afs32_xsetgroups();
-#if defined(__NR_setgroups32)
- extern int afs32_xsetgroups32();
-#endif
+#ifdef HAVE_LINUX_KUID_T
+ afs_ns = afs_current_user_ns();
#endif
+ osi_Init();
+ /* Initialize CellLRU since it is used while traversing CellServDB proc
+ * entry */
- /* obtain PAGE_OFFSET value */
- afs_linux_page_offset = get_page_offset();
+ QInit(&CellLRU);
-#ifndef AFS_S390_LINUX22_ENV
- if (afs_linux_page_offset == 0) {
- /* couldn't obtain page offset so can't continue */
- printf("afs: Unable to obtain PAGE_OFFSET. Exiting..");
- return -EIO;
- }
+#if !defined(AFS_NONFSTRANS)
+ osi_linux_nfssrv_init();
#endif
- /* Initialize pointers to kernel syscalls. */
-#if defined(AFS_IA64_LINUX20_ENV)
- kernel_gp = ((struct fptr *)printk)->gp;
-
- sys_settimeofdayp = (void *) &sys_settimeofday;
- sys_killp = (void *) &sys_kill;
-
- ((struct fptr *)sys_settimeofdayp)->ip =
- SYSCALL2POINTER sys_call_table[__NR_settimeofday - 1024];
- ((struct fptr *)sys_settimeofdayp)->gp = kernel_gp;
-
- ((struct fptr *)sys_killp)->ip =
- SYSCALL2POINTER sys_call_table[__NR_kill - 1024];
- ((struct fptr *)sys_killp)->gp = kernel_gp;
-#else /* !AFS_IA64_LINUX20_ENV */
- sys_settimeofdayp = SYSCALL2POINTER sys_call_table[__NR_settimeofday];
-#ifdef __NR_socketcall
- sys_socketcallp = SYSCALL2POINTER sys_call_table[__NR_socketcall];
-#endif /* no socketcall on alpha */
- sys_killp = SYSCALL2POINTER sys_call_table[__NR_kill];
-#endif /* AFS_IA64_LINUX20_ENV */
-
- /* setup AFS entry point. */
- if (
-#if defined(AFS_IA64_LINUX20_ENV)
- SYSCALL2POINTER sys_call_table[__NR_afs_syscall - 1024]
-#else
- SYSCALL2POINTER sys_call_table[__NR_afs_syscall]
-#endif
- == afs_syscall) {
- printf("AFS syscall entry point already in use!\n");
- return -EBUSY;
+ err = osi_syscall_init();
+ if (err)
+ return err;
+ err = afs_init_inodecache();
+ if (err) {
+ osi_syscall_clean();
+ return err;
+ }
+ err = register_filesystem(&afs_fs_type);
+ if (err) {
+ afs_destroy_inodecache();
+ osi_syscall_clean();
+ return err;
}
-
-
-#if defined(AFS_IA64_LINUX20_ENV)
- afs_ni_syscall = sys_call_table[__NR_afs_syscall - 1024];
-
- afs_syscall_stub = (void *) kmalloc(sizeof(ia64_syscall_stub), GFP_KERNEL);
- memcpy(afs_syscall_stub, ia64_syscall_stub, sizeof(ia64_syscall_stub));
- ia64_imm64_fixup((unsigned long)afs_syscall, afs_syscall_stub+0x30);
- sys_call_table[__NR_afs_syscall - 1024] = POINTER2SYSCALL afs_syscall_stub;
-#else /* AFS_IA64_LINUX20_ENV */
- afs_ni_syscall = sys_call_table[__NR_afs_syscall];
- sys_call_table[__NR_afs_syscall] = POINTER2SYSCALL afs_syscall;
-# ifdef AFS_SPARC64_LINUX20_ENV
- afs_ni_syscall32 = sys_call_table32[__NR_afs_syscall];
- sys_call_table32[__NR_afs_syscall] = POINTER2SYSCALL afs_syscall32;
-# endif
-#endif /* AFS_IA64_LINUX20_ENV */
-
- osi_Init();
- register_filesystem(&afs_file_system);
-
- /* Intercept setgroups calls */
-#if defined(AFS_IA64_LINUX20_ENV)
- sys_setgroupsp = (void *) &sys_setgroups;
-
- afs_xsetgroups_stub = (void *) kmalloc(sizeof(ia64_syscall_stub), GFP_KERNEL);
- memcpy(afs_xsetgroups_stub, ia64_syscall_stub, sizeof(ia64_syscall_stub));
- ia64_imm64_fixup((unsigned long)afs_xsetgroups, afs_xsetgroups_stub+0x30);
-
- ((struct fptr *)sys_setgroupsp)->ip =
- SYSCALL2POINTER sys_call_table[__NR_setgroups - 1024];
- ((struct fptr *)sys_setgroupsp)->gp = kernel_gp;
-
- sys_call_table[__NR_setgroups - 1024] = POINTER2SYSCALL afs_xsetgroups_stub;
-#else /* AFS_IA64_LINUX20_ENV */
- sys_setgroupsp = SYSCALL2POINTER sys_call_table[__NR_setgroups];
- sys_call_table[__NR_setgroups] = POINTER2SYSCALL afs_xsetgroups;
-# ifdef AFS_SPARC64_LINUX20_ENV
- sys32_setgroupsp = SYSCALL2POINTER sys_call_table32[__NR_setgroups];
- sys_call_table32[__NR_setgroups] = POINTER2SYSCALL afs32_xsetgroups;
-# endif
-# if defined(__NR_setgroups32)
- sys_setgroups32p = SYSCALL2POINTER sys_call_table[__NR_setgroups32];
- sys_call_table[__NR_setgroups32] = POINTER2SYSCALL afs_xsetgroups32;
-# ifdef AFS_SPARC64_LINUX20_ENV
- sys32_setgroups32p = SYSCALL2POINTER sys_call_table32[__NR_setgroups32];
- sys_call_table32[__NR_setgroups32] = POINTER2SYSCALL afs32_xsetgroups32;
-# endif
-# endif
-#endif /* AFS_IA64_LINUX20_ENV */
osi_sysctl_init();
+#ifdef LINUX_KEYRING_SUPPORT
+ osi_keyring_init();
+#endif
+ osi_proc_init();
+ osi_ioctl_init();
+ afs_init_pagecopy();
return 0;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-void __exit afs_cleanup(void)
-#else
-void cleanup_module(void)
-#endif
+void __exit
+afs_cleanup(void)
{
- struct task_struct *t;
+ afs_shutdown_pagecopy();
+#ifdef LINUX_KEYRING_SUPPORT
+ osi_keyring_shutdown();
+#endif
osi_sysctl_clean();
+ osi_syscall_clean();
+ unregister_filesystem(&afs_fs_type);
-#if defined(AFS_IA64_LINUX20_ENV)
- sys_call_table[__NR_setgroups - 1024] = POINTER2SYSCALL ((struct fptr *) sys_setgroupsp)->ip;
- sys_call_table[__NR_afs_syscall - 1024] = afs_ni_syscall;
-#else /* AFS_IA64_LINUX20_ENV */
- sys_call_table[__NR_setgroups] = POINTER2SYSCALL sys_setgroupsp;
- sys_call_table[__NR_afs_syscall] = afs_ni_syscall;
-# ifdef AFS_SPARC64_LINUX20_ENV
- sys_call_table32[__NR_setgroups] = POINTER2SYSCALL sys32_setgroupsp;
- sys_call_table32[__NR_afs_syscall] = afs_ni_syscall32;
-# endif
-# if defined(__NR_setgroups32)
- sys_call_table[__NR_setgroups32] = POINTER2SYSCALL sys_setgroups32p;
-# ifdef AFS_SPARC64_LINUX20_ENV
- sys_call_table32[__NR_setgroups32] = POINTER2SYSCALL sys32_setgroups32p;
-# endif
-# endif
-#endif /* AFS_IA64_LINUX20_ENV */
- unregister_filesystem(&afs_file_system);
-
- osi_linux_free_inode_pages(); /* Invalidate all pages using AFS inodes. */
+ afs_destroy_inodecache();
+#if !defined(AFS_NONFSTRANS)
+ osi_linux_nfssrv_shutdown();
+#endif
+ shutdown_osisleep();
osi_linux_free_afs_memory();
+ osi_ioctl_clean();
+ osi_proc_clean();
+
return;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+MODULE_LICENSE("http://www.openafs.org/dl/license10.html");
module_init(afs_init);
module_exit(afs_cleanup);
-#endif
-
-
-static long get_page_offset(void)
-{
-#if defined(AFS_PPC_LINUX22_ENV) || defined(AFS_SPARC64_LINUX20_ENV) || defined(AFS_SPARC_LINUX20_ENV) || defined(AFS_ALPHA_LINUX20_ENV) || defined(AFS_S390_LINUX22_ENV) || defined(AFS_IA64_LINUX20_ENV) || defined(AFS_PARISC_LINUX24_ENV)
- return PAGE_OFFSET;
-#else
- struct task_struct *p;
- /* search backward thru the circular list */
- for(p = current; p; p = p->prev_task)
- if (p->pid == 1)
- return p->addr_limit.seg;
-
- return 0;
-#endif
-}
git://git.openafs.org / openafs.git / blobdiff