#endif
#include <linux/module.h>
+#include <linux/proc_fs.h>
#include <linux/slab.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
#include <linux/init.h>
#include <linux/syscall.h>
#endif
-#if defined(AFS_LINUX26_ENV)
-#include <linux/vermagic.h>
-#include <linux/compiler.h>
-
-MODULE_INFO(vermagic, VERMAGIC_STRING);
-
-#endif
-
#ifdef AFS_SPARC64_LINUX24_ENV
#define __NR_setgroups32 82 /* This number is not exported for some bizarre reason. */
#endif
+#if !defined(AFS_LINUX24_ENV)
asmlinkage int (*sys_settimeofdayp) (struct timeval * tv,
struct timezone * tz);
+#endif
asmlinkage long (*sys_setgroupsp) (int gidsetsize, gid_t * grouplist);
-
#ifdef EXPORTED_SYS_CALL_TABLE
#ifdef AFS_SPARC64_LINUX20_ENV
extern unsigned int sys_call_table[]; /* changed to uint because SPARC64 has syscaltable of 32bit items */
}
#endif /* AFS_SPARC64_LINUX20_ENV */
+static int afs_ioctl(struct inode *, struct file *, unsigned int,
+ unsigned long);
+
+static struct file_operations afs_syscall_fops = {
+ .ioctl = afs_ioctl,
+};
+
+static struct proc_dir_entry *openafs_procfs;
+
+static int
+afsproc_init()
+{
+ struct proc_dir_entry *entry1;
+
+ openafs_procfs = proc_mkdir(PROC_FSDIRNAME, proc_root_fs);
+ entry1 = create_proc_entry(PROC_SYSCALL_NAME, 0666, openafs_procfs);
+
+ entry1->proc_fops = &afs_syscall_fops;
+
+ entry1->owner = THIS_MODULE;
+
+ return 0;
+}
+
+static void
+afsproc_exit()
+{
+ remove_proc_entry(PROC_SYSCALL_NAME, openafs_procfs);
+ remove_proc_entry(PROC_FSDIRNAME, proc_root_fs);
+}
+
+extern asmlinkage long
+afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4);
+
+static int
+afs_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+
+ struct afsprocdata sysargs;
+
+ if (cmd != VIOC_SYSCALL) return -EINVAL;
+
+ if (copy_from_user(&sysargs, (void *)arg, sizeof(struct afsprocdata)))
+ return -EFAULT;
+
+ return afs_syscall(sysargs.syscall, sysargs.param1,
+ sysargs.param2, sysargs.param3, sysargs.param4);
+}
+
#ifdef AFS_IA64_LINUX20_ENV
asmlinkage long
{
#if defined(AFS_IA64_LINUX20_ENV)
unsigned long kernel_gp = 0;
- static struct fptr sys_settimeofday, sys_setgroups;
-#endif
- extern int afs_syscall();
+ static struct fptr sys_setgroups;
+#endif /* defined(AFS_IA64_LINUX20_ENV) */
extern long afs_xsetgroups();
#if defined(__NR_setgroups32)
extern int afs_xsetgroups32();
extern int afs32_xsetgroups();
#if (defined(__NR_setgroups32) && defined(AFS_SPARC64_LINUX20_ENV))
extern int afs32_xsetgroups32();
-#endif
+#endif /* defined(__NR_setgroups32) && defined(AFS_SPARC64_LINUX20_ENV) */
#if (defined(__NR_ia32_setgroups32) && defined(AFS_AMD64_LINUX20_ENV))
extern int afs32_xsetgroups32();
-#endif
-#endif /* AFS_SPARC64_LINUX20_ENV || AFS_AMD64_LINUX20_ENV */
+#endif /* (defined(__NR_ia32_setgroups32) && defined(AFS_AMD64_LINUX20_ENV) */
+#endif /* AFS_SPARC64_LINUX20_ENV || AFS_AMD64_LINUX20_ENV || AFS_PPC64_LINUX20_ENV */
#if !defined(EXPORTED_SYS_CALL_TABLE) || (defined(AFS_AMD64_LINUX20_ENV) && !defined(EXPORTED_IA32_SYS_CALL_TABLE))
unsigned long *ptr;
printf("afs: Unable to obtain PAGE_OFFSET. Exiting..");
return -EIO;
}
-#endif
-#endif
+#endif /* AFS_S390_LINUX22_ENV */
+#endif /* !defined(AFS_LINUX24_ENV) */
+
#ifndef EXPORTED_SYS_CALL_TABLE
sys_call_table = 0;
if (ret && sym_start) {
sys_call_table = sym_start;
}
-#else
-#ifdef EXPORTED_KALLSYMS_ADDRESS
+#elif defined(EXPORTED_KALLSYMS_ADDRESS)
ret =
kallsyms_address_to_symbol((unsigned long)&init_mm, &mod_name,
&mod_start, &mod_end, &sec_name,
&sym_start, &sym_end);
ptr = (unsigned long *)sec_start;
datalen = (sec_end - sec_start) / sizeof(unsigned long);
-#else
-#if defined(AFS_IA64_LINUX20_ENV)
+#elif defined(AFS_IA64_LINUX20_ENV)
ptr = (unsigned long *)(&sys_close - 0x180000);
datalen = 0x180000 / sizeof(ptr);
-#else
-#if defined(AFS_AMD64_LINUX20_ENV)
+#elif defined(AFS_AMD64_LINUX20_ENV)
ptr = (unsigned long *)&init_mm;
datalen = 0x360000 / sizeof(ptr);
#else
ptr = (unsigned long *)&init_mm;
datalen = 16384;
#endif
-#endif
-#endif
for (offset = 0; offset < datalen; ptr++, offset++) {
#if defined(AFS_IA64_LINUX20_ENV)
unsigned long close_ip =
sys_call_table = (void *)&(ptr[-1 * (__NR_close - 1024)]);
break;
}
-#else
-#if defined(EXPORTED_SYS_WAIT4) && defined(EXPORTED_SYS_CLOSE)
+#elif defined(EXPORTED_SYS_WAIT4) && defined(EXPORTED_SYS_CLOSE)
if (ptr[0] == (unsigned long)&sys_close
&& ptr[__NR_wait4 - __NR_close] == (unsigned long)&sys_wait4) {
sys_call_table = ptr - __NR_close;
break;
}
-#else
-#if defined(EXPORTED_SYS_CHDIR) && defined(EXPORTED_SYS_CLOSE)
+#elif defined(EXPORTED_SYS_CHDIR) && defined(EXPORTED_SYS_CLOSE)
if (ptr[0] == (unsigned long)&sys_close
&& ptr[__NR_chdir - __NR_close] == (unsigned long)&sys_chdir) {
sys_call_table = ptr - __NR_close;
break;
}
-#else
+#elif defined(EXPORTED_SYS_OPEN)
if (ptr[0] == (unsigned long)&sys_exit
&& ptr[__NR_open - __NR_exit] == (unsigned long)&sys_open) {
sys_call_table = ptr - __NR_exit;
break;
}
-#endif
-#endif
-#endif
+#else /* EXPORTED_SYS_OPEN */
+ break;
+#endif /* EXPORTED_KALLSYMS_ADDRESS */
}
#ifdef EXPORTED_KALLSYMS_ADDRESS
ret =
&sym_start, &sym_end);
if (ret && strcmp(sym_name, "sys_call_table"))
sys_call_table = 0;
-#endif
-#endif
+#endif /* EXPORTED_KALLSYMS_ADDRESS */
if (!sys_call_table) {
printf("Failed to find address of sys_call_table\n");
- return -EIO;
- }
- printf("Found sys_call_table at %x\n", sys_call_table);
-# ifdef AFS_SPARC64_LINUX20_ENV
- error cant support this yet.
-#endif
-#endif /* EXPORTED_SYS_CALL_TABLE */
+ } else {
+ printf("Found sys_call_table at %x\n", sys_call_table);
+#ifdef AFS_SPARC64_LINUX20_ENV
+ error cant support this yet.;
+#endif /* AFS_SPARC64_LINUX20_ENV */
+#endif /* EXPORTED_SYS_CALL_TABLE */
+
#ifdef AFS_AMD64_LINUX20_ENV
#ifndef EXPORTED_IA32_SYS_CALL_TABLE
- ia32_sys_call_table = 0;
+ ia32_sys_call_table = 0;
#ifdef EXPORTED_KALLSYMS_SYMBOL
- ret = 1;
- token = 0;
- while (ret) {
- sym_start = 0;
- ret =
- kallsyms_symbol_to_address("ia32_sys_call_table", &token,
- &mod_name, &mod_start, &mod_end,
- &sec_name, &sec_start, &sec_end,
- &sym_name, &sym_start, &sym_end);
- if (ret && !strcmp(mod_name, "kernel"))
- break;
- }
- if (ret && sym_start) {
- ia32_sys_call_table = sym_start;
- }
+ ret = 1;
+ token = 0;
+ while (ret) {
+ sym_start = 0;
+ ret = kallsyms_symbol_to_address("ia32_sys_call_table", &token,
+ &mod_name, &mod_start, &mod_end,
+ &sec_name, &sec_start, &sec_end,
+ &sym_name, &sym_start, &sym_end);
+ if (ret && !strcmp(mod_name, "kernel"))
+ break;
+ }
+ if (ret && sym_start) {
+ ia32_sys_call_table = sym_start;
+ }
#else /* EXPORTED_KALLSYMS_SYMBOL */
#ifdef EXPORTED_KALLSYMS_ADDRESS
- ret =
- kallsyms_address_to_symbol((unsigned long)&interruptible_sleep_on,
- &mod_name, &mod_start, &mod_end, &sec_name,
- &sec_start, &sec_end, &sym_name,
- &sym_start, &sym_end);
- ptr = (unsigned long *)sec_start;
- datalen = (sec_end - sec_start) / sizeof(unsigned long);
+ ret = kallsyms_address_to_symbol((unsigned long)
+ &interruptible_sleep_on,
+ &mod_name, &mod_start, &mod_end,
+ &sec_name, &sec_start, &sec_end,
+ &sym_name, &sym_start, &sym_end);
+ ptr = (unsigned long *)sec_start;
+ datalen = (sec_end - sec_start) / sizeof(unsigned long);
#else /* EXPORTED_KALLSYMS_ADDRESS */
#if defined(AFS_AMD64_LINUX20_ENV)
- ptr = (unsigned long *)&interruptible_sleep_on;
- datalen = 0x180000 / sizeof(ptr);
+ ptr = (unsigned long *)&interruptible_sleep_on;
+ datalen = 0x180000 / sizeof(ptr);
#else /* AFS_AMD64_LINUX20_ENV */
- ptr = (unsigned long *)&interruptible_sleep_on;
- datalen = 16384;
+ ptr = (unsigned long *)&interruptible_sleep_on;
+ datalen = 16384;
#endif /* AFS_AMD64_LINUX20_ENV */
#endif /* EXPORTED_KALLSYMS_ADDRESS */
- for (offset = 0; offset < datalen; ptr++, offset++) {
- if (ptr[0] == (unsigned long)&sys_exit
- && ptr[__NR_ia32_open - __NR_ia32_exit] ==
- (unsigned long)&sys_open) {
- ia32_sys_call_table = ptr - __NR_ia32_exit;
- break;
+ for (offset = 0; offset < datalen; ptr++, offset++) {
+ if (ptr[0] == (unsigned long)&sys_exit
+ && ptr[__NR_ia32_open - __NR_ia32_exit] ==
+ (unsigned long)&sys_open) {
+ ia32_sys_call_table = ptr - __NR_ia32_exit;
+ break;
+ }
}
- }
#ifdef EXPORTED_KALLSYMS_ADDRESS
- ret =
- kallsyms_address_to_symbol((unsigned long)ia32_sys_call_table,
- &mod_name, &mod_start, &mod_end, &sec_name,
- &sec_start, &sec_end, &sym_name,
- &sym_start, &sym_end);
- if (ret && strcmp(sym_name, "ia32_sys_call_table"))
- ia32_sys_call_table = 0;
+ ret = kallsyms_address_to_symbol((unsigned long)ia32_sys_call_table,
+ &mod_name, &mod_start, &mod_end,
+ &sec_name, &sec_start, &sec_end,
+ &sym_name, &sym_start, &sym_end);
+ if (ret && strcmp(sym_name, "ia32_sys_call_table"))
+ ia32_sys_call_table = 0;
#endif /* EXPORTED_KALLSYMS_ADDRESS */
#endif /* EXPORTED_KALLSYMS_SYMBOL */
- if (!ia32_sys_call_table) {
- printf("Warning: Failed to find address of ia32_sys_call_table\n");
- } else {
- printf("Found ia32_sys_call_table at %x\n", ia32_sys_call_table);
- }
+ if (!ia32_sys_call_table) {
+ printf("Warning: Failed to find address of ia32_sys_call_table\n");
+ } else {
+ printf("Found ia32_sys_call_table at %x\n", ia32_sys_call_table);
+ }
#else
- printf("Found ia32_sys_call_table at %x\n", ia32_sys_call_table);
+ printf("Found ia32_sys_call_table at %x\n", ia32_sys_call_table);
#endif /* IA32_SYS_CALL_TABLE */
#endif
- /* Initialize pointers to kernel syscalls. */
-#if defined(AFS_IA64_LINUX20_ENV)
- kernel_gp = ((struct fptr *)printk)->gp;
-
- sys_settimeofdayp = (void *)&sys_settimeofday;
-
- ((struct fptr *)sys_settimeofdayp)->ip =
- SYSCALL2POINTER sys_call_table[__NR_settimeofday - 1024];
- ((struct fptr *)sys_settimeofdayp)->gp = kernel_gp;
-
-#else /* !AFS_IA64_LINUX20_ENV */
- sys_settimeofdayp = SYSCALL2POINTER sys_call_table[__NR_settimeofday];
+ /* Initialize pointers to kernel syscalls. */
+#if !defined(AFS_LINUX24_ENV)
+ sys_settimeofdayp = SYSCALL2POINTER sys_call_table[__NR_settimeofday];
#endif /* AFS_IA64_LINUX20_ENV */
- /* setup AFS entry point. */
- if (
+ /* setup AFS entry point. */
+ if (
#if defined(AFS_IA64_LINUX20_ENV)
- SYSCALL2POINTER sys_call_table[__NR_afs_syscall - 1024]
+ SYSCALL2POINTER sys_call_table[__NR_afs_syscall - 1024]
#else
- SYSCALL2POINTER sys_call_table[__NR_afs_syscall]
+ SYSCALL2POINTER sys_call_table[__NR_afs_syscall]
#endif
- == afs_syscall) {
- printf("AFS syscall entry point already in use!\n");
- return -EBUSY;
- }
+ == afs_syscall) {
+ printf("AFS syscall entry point already in use!\n");
+ return -EBUSY;
+ }
#if defined(AFS_IA64_LINUX20_ENV)
- afs_ni_syscall = sys_call_table[__NR_afs_syscall - 1024];
- sys_call_table[__NR_afs_syscall - 1024] =
- POINTER2SYSCALL((struct fptr *)afs_syscall_stub)->ip;
+ afs_ni_syscall = sys_call_table[__NR_afs_syscall - 1024];
+ sys_call_table[__NR_afs_syscall - 1024] =
+ POINTER2SYSCALL((struct fptr *)afs_syscall_stub)->ip;
#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
+ 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 */
#ifdef AFS_AMD64_LINUX20_ENV
- if (ia32_sys_call_table) {
- ia32_ni_syscall = ia32_sys_call_table[__NR_ia32_afs_syscall];
- ia32_sys_call_table[__NR_ia32_afs_syscall] =
- POINTER2SYSCALL afs_syscall;
- }
+ if (ia32_sys_call_table) {
+ ia32_ni_syscall = ia32_sys_call_table[__NR_ia32_afs_syscall];
+ ia32_sys_call_table[__NR_ia32_afs_syscall] =
+ POINTER2SYSCALL afs_syscall;
+ }
#endif /* AFS_S390_LINUX22_ENV */
-
+#ifndef EXPORTED_SYS_CALL_TABLE
+ }
+#endif /* EXPORTED_SYS_CALL_TABLE */
osi_Init();
register_filesystem(&afs_fs_type);
/* Intercept setgroups calls */
+ if (sys_call_table) {
#if defined(AFS_IA64_LINUX20_ENV)
sys_setgroupsp = (void *)&sys_setgroups;
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;
+ sys32_setgroups32p =
+ SYSCALL2POINTER sys_call_table32[__NR_setgroups32];
+ sys_call_table32[__NR_setgroups32] =
+ POINTER2SYSCALL afs32_xsetgroups32;
#endif /* AFS_SPARC64_LINUX20_ENV */
#endif /* __NR_setgroups32 */
#ifdef AFS_AMD64_LINUX20_ENV
sys_setgroupsp = set_afs_xsetgroups_syscall(afs_xsetgroups);
sys32_setgroupsp = set_afs_xsetgroups_syscall32(afs32_xsetgroups);
#endif
+ }
osi_sysctl_init();
+ afsproc_init();
return 0;
}
struct task_struct *t;
osi_sysctl_clean();
-
+ if (sys_call_table) {
#if defined(AFS_IA64_LINUX20_ENV)
sys_call_table[__NR_setgroups - 1024] =
POINTER2SYSCALL((struct fptr *)sys_setgroupsp)->ip;
# 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;
+ sys_call_table32[__NR_setgroups32] =
+ POINTER2SYSCALL sys32_setgroups32p;
# endif
# endif
#endif /* AFS_IA64_LINUX20_ENV */
#endif
}
#endif
+ }
#ifdef AFS_PPC64_LINUX20_ENV
set_afs_syscall(afs_ni_syscall);
set_afs_xsetgroups_syscall(sys_setgroupsp);
osi_linux_free_inode_pages(); /* Invalidate all pages using AFS inodes. */
osi_linux_free_afs_memory();
+ afsproc_exit();
return;
}
git://git.openafs.org / openafs.git / blobdiff