* environment.
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/file.h>
#include <linux/resource.h>
#include <linux/times.h>
#include <linux/utsname.h>
-#include <linux/timex.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/sem.h>
#include <asm/fpumacro.h>
#include <asm/semaphore.h>
#include <asm/mmu_context.h>
+#include <asm/a.out.h>
+#include <asm/compat_signal.h>
-/* Use this to get at 32-bit user passed pointers. */
-/* Things to consider: the low-level assembly stub does
- srl x, 0, x for first four arguments, so if you have
- pointer to something in the first four arguments, just
- declare it as a pointer, not u32. On the other side,
- arguments from 5th onwards should be declared as u32
- for pointers, and need AA() around each usage.
- A() macro should be used for places where you e.g.
- have some internal variable u32 and just want to get
- rid of a compiler warning. AA() has to be used in
- places where you want to convert a function argument
- to 32bit pointer or when you e.g. access pt_regs
- structure and want to consider 32bit registers only.
- -jj
- */
-#define A(__x) ((unsigned long)(__x))
-#define AA(__x) \
-({ unsigned long __ret; \
- __asm__ ("srl %0, 0, %0" \
- : "=r" (__ret) \
- : "0" (__x)); \
- __ret; \
-})
-
-
-asmlinkage long sys32_chown16(const char * filename, u16 user, u16 group)
+asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
{
return sys_chown(filename, low2highuid(user), low2highgid(group));
}
-asmlinkage long sys32_lchown16(const char * filename, u16 user, u16 group)
+asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
{
return sys_lchown(filename, low2highuid(user), low2highgid(group));
}
low2highuid(suid));
}
-asmlinkage long sys32_getresuid16(u16 *ruid, u16 *euid, u16 *suid)
+asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
{
int retval;
low2highgid(sgid));
}
-asmlinkage long sys32_getresgid16(u16 *rgid, u16 *egid, u16 *sgid)
+asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
{
int retval;
return sys_setfsgid((gid_t)gid);
}
-static int groups16_to_user(u16 *grouplist, struct group_info *group_info)
+static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
{
int i;
u16 group;
return 0;
}
-static int groups16_from_user(struct group_info *group_info, u16 *grouplist)
+static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
{
int i;
u16 group;
return 0;
}
-asmlinkage long sys32_getgroups16(int gidsetsize, u16 *grouplist)
+asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
{
int i;
return i;
}
-asmlinkage long sys32_setgroups16(int gidsetsize, u16 *grouplist)
+asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
{
struct group_info *group_info;
int retval;
/* 32-bit timeval and related flotsam. */
-static long get_tv32(struct timeval *o, struct compat_timeval *i)
+static long get_tv32(struct timeval *o, struct compat_timeval __user *i)
{
- return (!access_ok(VERIFY_READ, tv32, sizeof(*tv32)) ||
+ return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
(__get_user(o->tv_sec, &i->tv_sec) |
__get_user(o->tv_usec, &i->tv_usec)));
}
-static inline long put_tv32(struct compat_timeval *o, struct timeval *i)
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
{
return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
(__put_user(i->tv_sec, &o->tv_sec) |
__put_user(i->tv_usec, &o->tv_usec)));
}
-struct msgbuf32 { s32 mtype; char mtext[1]; };
-
-struct ipc_perm32
-{
- key_t key;
- compat_uid_t uid;
- compat_gid_t gid;
- compat_uid_t cuid;
- compat_gid_t cgid;
- compat_mode_t mode;
- unsigned short seq;
-};
-
-struct semid_ds32 {
- struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
- compat_time_t sem_otime; /* last semop time */
- compat_time_t sem_ctime; /* last change time */
- u32 sem_base; /* ptr to first semaphore in array */
- u32 sem_pending; /* pending operations to be processed */
- u32 sem_pending_last; /* last pending operation */
- u32 undo; /* undo requests on this array */
- unsigned short sem_nsems; /* no. of semaphores in array */
-};
-
-struct semid64_ds32 {
- struct ipc64_perm sem_perm; /* this structure is the same on sparc32 and sparc64 */
- unsigned int __pad1;
- compat_time_t sem_otime;
- unsigned int __pad2;
- compat_time_t sem_ctime;
- u32 sem_nsems;
- u32 __unused1;
- u32 __unused2;
-};
-
-struct msqid_ds32
+#ifdef CONFIG_SYSVIPC
+asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
{
- struct ipc_perm32 msg_perm;
- u32 msg_first;
- u32 msg_last;
- compat_time_t msg_stime;
- compat_time_t msg_rtime;
- compat_time_t msg_ctime;
- u32 wwait;
- u32 rwait;
- unsigned short msg_cbytes;
- unsigned short msg_qnum;
- unsigned short msg_qbytes;
- compat_ipc_pid_t msg_lspid;
- compat_ipc_pid_t msg_lrpid;
-};
-
-struct msqid64_ds32 {
- struct ipc64_perm msg_perm;
- unsigned int __pad1;
- compat_time_t msg_stime;
- unsigned int __pad2;
- compat_time_t msg_rtime;
- unsigned int __pad3;
- compat_time_t msg_ctime;
- unsigned int msg_cbytes;
- unsigned int msg_qnum;
- unsigned int msg_qbytes;
- compat_pid_t msg_lspid;
- compat_pid_t msg_lrpid;
- unsigned int __unused1;
- unsigned int __unused2;
-};
-
-
-struct shmid_ds32 {
- struct ipc_perm32 shm_perm;
- int shm_segsz;
- compat_time_t shm_atime;
- compat_time_t shm_dtime;
- compat_time_t shm_ctime;
- compat_ipc_pid_t shm_cpid;
- compat_ipc_pid_t shm_lpid;
- unsigned short shm_nattch;
-};
-
-struct shmid64_ds32 {
- struct ipc64_perm shm_perm;
- unsigned int __pad1;
- compat_time_t shm_atime;
- unsigned int __pad2;
- compat_time_t shm_dtime;
- unsigned int __pad3;
- compat_time_t shm_ctime;
- compat_size_t shm_segsz;
- compat_pid_t shm_cpid;
- compat_pid_t shm_lpid;
- unsigned int shm_nattch;
- unsigned int __unused1;
- unsigned int __unused2;
-};
-
-
-/*
- * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation..
- *
- * This is really horribly ugly.
- */
-#define IPCOP_MASK(__x) (1UL << ((__x)&~IPC_64))
-static int do_sys32_semctl(int first, int second, int third, void *uptr)
-{
- union semun fourth;
- u32 pad;
- int err = -EINVAL;
-
- if (!uptr)
- goto out;
- err = -EFAULT;
- if (get_user (pad, (u32 *)uptr))
- goto out;
- if ((third & ~IPC_64) == SETVAL)
- fourth.val = (int)pad;
- else
- fourth.__pad = (void *)A(pad);
- if (IPCOP_MASK (third) &
- (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SEM_INFO) | IPCOP_MASK (GETVAL) |
- IPCOP_MASK (GETPID) | IPCOP_MASK (GETNCNT) | IPCOP_MASK (GETZCNT) |
- IPCOP_MASK (GETALL) | IPCOP_MASK (SETALL) | IPCOP_MASK (IPC_RMID))) {
- err = sys_semctl (first, second, third, fourth);
- } else if (third & IPC_64) {
- struct semid64_ds s;
- struct semid64_ds32 *usp = (struct semid64_ds32 *)A(pad);
- mm_segment_t old_fs;
- int need_back_translation;
-
- if (third == (IPC_SET|IPC_64)) {
- err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
- err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
- err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
- if (err)
- goto out;
- fourth.__pad = &s;
- }
- need_back_translation =
- (IPCOP_MASK (third) &
- (IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
- if (need_back_translation)
- fourth.__pad = &s;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_semctl (first, second, third, fourth);
- set_fs (old_fs);
- if (need_back_translation) {
- int err2 = copy_to_user (&usp->sem_perm, &s.sem_perm, sizeof(struct ipc64_perm) + 2*sizeof(time_t));
- err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
- if (err2) err = -EFAULT;
- }
- } else {
- struct semid_ds s;
- struct semid_ds32 *usp = (struct semid_ds32 *)A(pad);
- mm_segment_t old_fs;
- int need_back_translation;
-
- if (third == IPC_SET) {
- err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
- err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
- err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
- if (err)
- goto out;
- fourth.__pad = &s;
- }
- need_back_translation =
- (IPCOP_MASK (third) &
- (IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
- if (need_back_translation)
- fourth.__pad = &s;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_semctl (first, second, third, fourth);
- set_fs (old_fs);
- if (need_back_translation) {
- int err2 = put_user (s.sem_perm.key, &usp->sem_perm.key);
- err2 |= __put_user (high2lowuid(s.sem_perm.uid), &usp->sem_perm.uid);
- err2 |= __put_user (high2lowgid(s.sem_perm.gid), &usp->sem_perm.gid);
- err2 |= __put_user (high2lowuid(s.sem_perm.cuid), &usp->sem_perm.cuid);
- err2 |= __put_user (high2lowgid(s.sem_perm.cgid), &usp->sem_perm.cgid);
- err2 |= __put_user (s.sem_perm.mode, &usp->sem_perm.mode);
- err2 |= __put_user (s.sem_perm.seq, &usp->sem_perm.seq);
- err2 |= __put_user (s.sem_otime, &usp->sem_otime);
- err2 |= __put_user (s.sem_ctime, &usp->sem_ctime);
- err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
- if (err2) err = -EFAULT;
- }
- }
-out:
- return err;
-}
-
-static int do_sys32_msgsnd (int first, int second, int third, void *uptr)
-{
- struct msgbuf *p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
- struct msgbuf32 *up = (struct msgbuf32 *)uptr;
- mm_segment_t old_fs;
- int err;
-
- if (!p)
- return -ENOMEM;
- err = -EFAULT;
- if (get_user (p->mtype, &up->mtype) ||
- __copy_from_user (p->mtext, &up->mtext, second))
- goto out;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgsnd (first, p, second, third);
- set_fs (old_fs);
-out:
- kfree (p);
- return err;
-}
-
-static int do_sys32_msgrcv (int first, int second, int msgtyp, int third,
- int version, void *uptr)
-{
- struct msgbuf32 *up;
- struct msgbuf *p;
- mm_segment_t old_fs;
- int err;
-
- if (!version) {
- struct ipc_kludge *uipck = (struct ipc_kludge *)uptr;
- struct ipc_kludge ipck;
-
- err = -EINVAL;
- if (!uptr)
- goto out;
- err = -EFAULT;
- if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge)))
- goto out;
- uptr = (void *)A(ipck.msgp);
- msgtyp = ipck.msgtyp;
- }
- err = -ENOMEM;
- p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
- if (!p)
- goto out;
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgrcv (first, p, second, msgtyp, third);
- set_fs (old_fs);
- if (err < 0)
- goto free_then_out;
- up = (struct msgbuf32 *)uptr;
- if (put_user (p->mtype, &up->mtype) ||
- __copy_to_user (&up->mtext, p->mtext, err))
- err = -EFAULT;
-free_then_out:
- kfree (p);
-out:
- return err;
-}
-
-static int do_sys32_msgctl (int first, int second, void *uptr)
-{
- int err;
-
- if (IPCOP_MASK (second) &
- (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (MSG_INFO) |
- IPCOP_MASK (IPC_RMID))) {
- err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
- } else if (second & IPC_64) {
- struct msqid64_ds m;
- struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
- mm_segment_t old_fs;
-
- if (second == (IPC_SET|IPC_64)) {
- err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
- err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
- err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
- err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
- if (err)
- goto out;
- }
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgctl (first, second, (struct msqid_ds *)&m);
- set_fs (old_fs);
- if (IPCOP_MASK (second) &
- (IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
- int err2 = copy_to_user(&up->msg_perm, &m.msg_perm, sizeof(struct ipc64_perm) + 3*sizeof(time_t));
- err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
- err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
- err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
- err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
- err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
- if (err2)
- err = -EFAULT;
- }
- } else {
- struct msqid_ds m;
- struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
- mm_segment_t old_fs;
-
- if (second == IPC_SET) {
- err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
- err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
- err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
- err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
- if (err)
- goto out;
- }
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_msgctl (first, second, &m);
- set_fs (old_fs);
- if (IPCOP_MASK (second) &
- (IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
- int err2 = put_user (m.msg_perm.key, &up->msg_perm.key);
- err2 |= __put_user (high2lowuid(m.msg_perm.uid), &up->msg_perm.uid);
- err2 |= __put_user (high2lowgid(m.msg_perm.gid), &up->msg_perm.gid);
- err2 |= __put_user (high2lowuid(m.msg_perm.cuid), &up->msg_perm.cuid);
- err2 |= __put_user (high2lowgid(m.msg_perm.cgid), &up->msg_perm.cgid);
- err2 |= __put_user (m.msg_perm.mode, &up->msg_perm.mode);
- err2 |= __put_user (m.msg_perm.seq, &up->msg_perm.seq);
- err2 |= __put_user (m.msg_stime, &up->msg_stime);
- err2 |= __put_user (m.msg_rtime, &up->msg_rtime);
- err2 |= __put_user (m.msg_ctime, &up->msg_ctime);
- err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
- err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
- err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
- err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
- err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
- if (err2)
- err = -EFAULT;
- }
- }
-
-out:
- return err;
-}
-
-static int do_sys32_shmat (int first, int second, int third, int version, void *uptr)
-{
- unsigned long raddr;
- u32 *uaddr = (u32 *)A((u32)third);
- int err = -EINVAL;
-
- if (version == 1)
- goto out;
- err = do_shmat (first, uptr, second, &raddr);
- if (err)
- goto out;
- err = put_user (raddr, uaddr);
-out:
- return err;
-}
-
-static int do_sys32_shmctl (int first, int second, void *uptr)
-{
- int err;
-
- if (IPCOP_MASK (second) &
- (IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SHM_LOCK) | IPCOP_MASK (SHM_UNLOCK) |
- IPCOP_MASK (IPC_RMID))) {
- if (second == (IPC_INFO|IPC_64))
- second = IPC_INFO; /* So that we don't have to translate it */
- err = sys_shmctl (first, second, (struct shmid_ds *)uptr);
- } else if ((second & IPC_64) && second != (SHM_INFO|IPC_64)) {
- struct shmid64_ds s;
- struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
- mm_segment_t old_fs;
-
- if (second == (IPC_SET|IPC_64)) {
- err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
- err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
- err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
- if (err)
- goto out;
- }
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_shmctl (first, second, (struct shmid_ds *)&s);
- set_fs (old_fs);
- if (err < 0)
- goto out;
-
- /* Mask it even in this case so it becomes a CSE. */
- if (IPCOP_MASK (second) &
- (IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
- int err2 = copy_to_user (&up->shm_perm, &s.shm_perm, sizeof(struct ipc64_perm) + 3*sizeof(time_t));
- err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
- err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
- err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
- err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
- if (err2)
- err = -EFAULT;
- }
- } else {
- struct shmid_ds s;
- struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
- mm_segment_t old_fs;
-
- second &= ~IPC_64;
- if (second == IPC_SET) {
- err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
- err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
- err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
- if (err)
- goto out;
- }
- old_fs = get_fs ();
- set_fs (KERNEL_DS);
- err = sys_shmctl (first, second, &s);
- set_fs (old_fs);
- if (err < 0)
- goto out;
-
- /* Mask it even in this case so it becomes a CSE. */
- if (second == SHM_INFO) {
- struct shm_info32 {
- int used_ids;
- u32 shm_tot, shm_rss, shm_swp;
- u32 swap_attempts, swap_successes;
- } *uip = (struct shm_info32 *)uptr;
- struct shm_info *kp = (struct shm_info *)&s;
- int err2 = put_user (kp->used_ids, &uip->used_ids);
- err2 |= __put_user (kp->shm_tot, &uip->shm_tot);
- err2 |= __put_user (kp->shm_rss, &uip->shm_rss);
- err2 |= __put_user (kp->shm_swp, &uip->shm_swp);
- err2 |= __put_user (kp->swap_attempts, &uip->swap_attempts);
- err2 |= __put_user (kp->swap_successes, &uip->swap_successes);
- if (err2)
- err = -EFAULT;
- } else if (IPCOP_MASK (second) &
- (IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
- int err2 = put_user (s.shm_perm.key, &up->shm_perm.key);
- err2 |= __put_user (high2lowuid(s.shm_perm.uid), &up->shm_perm.uid);
- err2 |= __put_user (high2lowuid(s.shm_perm.gid), &up->shm_perm.gid);
- err2 |= __put_user (high2lowuid(s.shm_perm.cuid), &up->shm_perm.cuid);
- err2 |= __put_user (high2lowuid(s.shm_perm.cgid), &up->shm_perm.cgid);
- err2 |= __put_user (s.shm_perm.mode, &up->shm_perm.mode);
- err2 |= __put_user (s.shm_perm.seq, &up->shm_perm.seq);
- err2 |= __put_user (s.shm_atime, &up->shm_atime);
- err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
- err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
- err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
- err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
- err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
- err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
- if (err2)
- err = -EFAULT;
- }
- }
-out:
- return err;
-}
-
-static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
- const struct compat_timespec *timeout32)
-{
- struct compat_timespec t32;
- struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
-
- if (copy_from_user(&t32, timeout32, sizeof(t32)))
- return -EFAULT;
-
- if (put_user(t32.tv_sec, &t64->tv_sec) ||
- put_user(t32.tv_nsec, &t64->tv_nsec))
- return -EFAULT;
-
- return sys_semtimedop(semid, tsems, nsems, t64);
-}
-
-asmlinkage int sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
-{
- int version, err;
+ int version;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
- if (call <= SEMCTL)
- switch (call) {
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second, NULL);
- goto out;
- case SEMTIMEDOP:
- err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second, (const struct compat_timespec *) AA(fifth));
- case SEMGET:
- err = sys_semget (first, second, third);
- goto out;
- case SEMCTL:
- err = do_sys32_semctl (first, second, third, (void *)AA(ptr));
- goto out;
- default:
- err = -ENOSYS;
- goto out;
- };
- if (call <= MSGCTL)
- switch (call) {
- case MSGSND:
- err = do_sys32_msgsnd (first, second, third, (void *)AA(ptr));
- goto out;
- case MSGRCV:
- err = do_sys32_msgrcv (first, second, fifth, third,
- version, (void *)AA(ptr));
- goto out;
- case MSGGET:
- err = sys_msgget ((key_t) first, second);
- goto out;
- case MSGCTL:
- err = do_sys32_msgctl (first, second, (void *)AA(ptr));
- goto out;
- default:
- err = -ENOSYS;
- goto out;
- }
- if (call <= SHMCTL)
- switch (call) {
- case SHMAT:
- err = do_sys32_shmat (first, second, third,
- version, (void *)AA(ptr));
- goto out;
- case SHMDT:
- err = sys_shmdt ((char *)AA(ptr));
- goto out;
- case SHMGET:
- err = sys_shmget (first, second, third);
- goto out;
- case SHMCTL:
- err = do_sys32_shmctl (first, second, (void *)AA(ptr));
- goto out;
- default:
- err = -ENOSYS;
- goto out;
- }
+ switch (call) {
+ case SEMTIMEDOP:
+ if (fifth)
+ /* sign extend semid */
+ return compat_sys_semtimedop((int)first,
+ compat_ptr(ptr), second,
+ compat_ptr(fifth));
+ /* else fall through for normal semop() */
+ case SEMOP:
+ /* struct sembuf is the same on 32 and 64bit :)) */
+ /* sign extend semid */
+ return sys_semtimedop((int)first, compat_ptr(ptr), second,
+ NULL);
+ case SEMGET:
+ /* sign extend key, nsems */
+ return sys_semget((int)first, (int)second, third);
+ case SEMCTL:
+ /* sign extend semid, semnum */
+ return compat_sys_semctl((int)first, (int)second, third,
+ compat_ptr(ptr));
+
+ case MSGSND:
+ /* sign extend msqid */
+ return compat_sys_msgsnd((int)first, (int)second, third,
+ compat_ptr(ptr));
+ case MSGRCV:
+ /* sign extend msqid, msgtyp */
+ return compat_sys_msgrcv((int)first, second, (int)fifth,
+ third, version, compat_ptr(ptr));
+ case MSGGET:
+ /* sign extend key */
+ return sys_msgget((int)first, second);
+ case MSGCTL:
+ /* sign extend msqid */
+ return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
+
+ case SHMAT:
+ /* sign extend shmid */
+ return compat_sys_shmat((int)first, second, third, version,
+ compat_ptr(ptr));
+ case SHMDT:
+ return sys_shmdt(compat_ptr(ptr));
+ case SHMGET:
+ /* sign extend key_t */
+ return sys_shmget((int)first, second, third);
+ case SHMCTL:
+ /* sign extend shmid */
+ return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
- err = -ENOSYS;
+ default:
+ return -ENOSYS;
+ };
-out:
- return err;
+ return -ENOSYS;
}
+#endif
-asmlinkage int sys32_truncate64(const char * path, unsigned long high, unsigned long low)
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
{
if ((int)high < 0)
return -EINVAL;
return sys_truncate(path, (high << 32) | low);
}
-asmlinkage int sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
{
if ((int)high < 0)
return -EINVAL;
return sys_ftruncate(fd, (high << 32) | low);
}
-typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
-typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
-
-static long do_readv_writev32(int type, struct file *file,
- const struct compat_iovec *vector, u32 count)
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
{
- compat_ssize_t tot_len;
- struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov=iovstack, *ivp;
- struct inode *inode;
- long retval, i;
- io_fn_t fn;
- iov_fn_t fnv;
-
- /*
- * SuS says "The readv() function *may* fail if the iovcnt argument
- * was less than or equal to 0, or greater than {IOV_MAX}. Linux has
- * traditionally returned zero for zero segments, so...
- */
- retval = 0;
- if (count == 0)
- goto out;
-
- /* First get the "struct iovec" from user memory and
- * verify all the pointers
- */
- retval = -EINVAL;
- if (count > UIO_MAXIOV)
- goto out;
- if (!file->f_op)
- goto out;
- if (count > UIO_FASTIOV) {
- retval = -ENOMEM;
- iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
- if (!iov)
- goto out;
- }
- retval = -EFAULT;
- if (verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
- goto out;
-
- /*
- * Single unix specification:
- * We should -EINVAL if an element length is not >= 0 and fitting an
- * ssize_t. The total length is fitting an ssize_t
- *
- * Be careful here because iov_len is a size_t not an ssize_t
- */
- tot_len = 0;
- i = count;
- ivp = iov;
- retval = -EINVAL;
- while(i > 0) {
- compat_ssize_t tmp = tot_len;
- compat_ssize_t len;
- u32 buf;
-
- if (__get_user(len, &vector->iov_len) ||
- __get_user(buf, &vector->iov_base)) {
- retval = -EFAULT;
- goto out;
- }
- if (len < 0) /* size_t not fitting an ssize_t32 .. */
- goto out;
- tot_len += len;
- if (tot_len < tmp) /* maths overflow on the compat_ssize_t */
- goto out;
- ivp->iov_base = (void *)A(buf);
- ivp->iov_len = (__kernel_size_t) len;
- vector++;
- ivp++;
- i--;
- }
- if (tot_len == 0) {
- retval = 0;
- goto out;
- }
-
- inode = file->f_dentry->d_inode;
- /* VERIFY_WRITE actually means a read, as we write to user space */
- retval = locks_verify_area((type == READ
- ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
- inode, file, file->f_pos, tot_len);
- if (retval)
- goto out;
-
- if (type == READ) {
- fn = file->f_op->read;
- fnv = file->f_op->readv;
- } else {
- fn = (io_fn_t)file->f_op->write;
- fnv = file->f_op->writev;
- }
- if (fnv) {
- retval = fnv(file, iov, count, &file->f_pos);
- goto out;
- }
-
- /* Do it by hand, with file-ops */
- ivp = iov;
- while (count > 0) {
- void * base;
- int len, nr;
-
- base = ivp->iov_base;
- len = ivp->iov_len;
- ivp++;
- count--;
-
- nr = fn(file, base, len, &file->f_pos);
-
- if (nr < 0) {
- if (!retval)
- retval = nr;
- break;
- }
- retval += nr;
- if (nr != len)
- break;
- }
-out:
- if (iov != iovstack)
- kfree(iov);
- if ((retval + (type == READ)) > 0)
- dnotify_parent(file->f_dentry,
- (type == READ) ? DN_ACCESS : DN_MODIFY);
-
- return retval;
-}
-
-asmlinkage long sys32_readv(int fd, struct compat_iovec *vector, u32 count)
-{
- struct file *file;
- int ret;
+ compat_ino_t ino;
+ int err;
- file = fget(fd);
- if(!file)
- return -EBADF;
+ if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
+ !old_valid_dev(stat->rdev))
+ return -EOVERFLOW;
- ret = -EBADF;
- if (!(file->f_mode & FMODE_READ))
- goto out;
- ret = -EINVAL;
- if (!file->f_op || (!file->f_op->readv && !file->f_op->read))
- goto out;
+ ino = stat->ino;
+ if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
+ return -EOVERFLOW;
- ret = do_readv_writev32(READ, file, vector, count);
+ err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
+ err |= put_user(stat->ino, &statbuf->st_ino);
+ err |= put_user(stat->mode, &statbuf->st_mode);
+ err |= put_user(stat->nlink, &statbuf->st_nlink);
+ err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
+ err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
+ err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
+ err |= put_user(stat->size, &statbuf->st_size);
+ err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
+ err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+ err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+ err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+ err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+ err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+ err |= put_user(stat->blksize, &statbuf->st_blksize);
+ err |= put_user(stat->blocks, &statbuf->st_blocks);
+ err |= put_user(0, &statbuf->__unused4[0]);
+ err |= put_user(0, &statbuf->__unused4[1]);
-out:
- fput(file);
- return ret;
+ return err;
}
-asmlinkage long sys32_writev(int fd, struct compat_iovec *vector, u32 count)
+int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf)
{
- struct file *file;
- int ret;
-
- file = fget(fd);
- if(!file)
- return -EBADF;
-
- ret = -EBADF;
- if (!(file->f_mode & FMODE_WRITE))
- goto out;
- ret = -EINVAL;
- if (!file->f_op || (!file->f_op->writev && !file->f_op->write))
- goto out;
-
- ret = do_readv_writev32(WRITE, file, vector, count);
-
-out:
- fput(file);
- return ret;
-}
-
-/* readdir & getdents */
-
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
-
-struct old_linux_dirent32 {
- u32 d_ino;
- u32 d_offset;
- unsigned short d_namlen;
- char d_name[1];
-};
-
-struct readdir_callback32 {
- struct old_linux_dirent32 * dirent;
- int count;
-};
+ int err;
-static int fillonedir(void * __buf, const char * name, int namlen,
- loff_t offset, ino_t ino, unsigned int d_type)
-{
- struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
- struct old_linux_dirent32 * dirent;
+ err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
+ err |= put_user(stat->ino, &statbuf->st_ino);
+ err |= put_user(stat->mode, &statbuf->st_mode);
+ err |= put_user(stat->nlink, &statbuf->st_nlink);
+ err |= put_user(stat->uid, &statbuf->st_uid);
+ err |= put_user(stat->gid, &statbuf->st_gid);
+ err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
+ err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
+ err |= put_user(stat->size, &statbuf->st_size);
+ err |= put_user(stat->blksize, &statbuf->st_blksize);
+ err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
+ err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
+ err |= put_user(stat->blocks, &statbuf->st_blocks);
+ err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
+ err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+ err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+ err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+ err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+ err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+ err |= put_user(0, &statbuf->__unused4);
+ err |= put_user(0, &statbuf->__unused5);
- if (buf->count)
- return -EINVAL;
- buf->count++;
- dirent = buf->dirent;
- put_user(ino, &dirent->d_ino);
- put_user(offset, &dirent->d_offset);
- put_user(namlen, &dirent->d_namlen);
- copy_to_user(dirent->d_name, name, namlen);
- put_user(0, dirent->d_name + namlen);
- return 0;
+ return err;
}
-asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
+asmlinkage long compat_sys_stat64(char __user * filename,
+ struct compat_stat64 __user *statbuf)
{
- int error = -EBADF;
- struct file * file;
- struct readdir_callback32 buf;
-
- file = fget(fd);
- if (!file)
- goto out;
-
- buf.count = 0;
- buf.dirent = dirent;
+ struct kstat stat;
+ int error = vfs_stat(filename, &stat);
- error = vfs_readdir(file, fillonedir, &buf);
- if (error < 0)
- goto out_putf;
- error = buf.count;
-
-out_putf:
- fput(file);
-out:
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
return error;
}
-struct linux_dirent32 {
- u32 d_ino;
- u32 d_off;
- unsigned short d_reclen;
- char d_name[1];
-};
-
-struct getdents_callback32 {
- struct linux_dirent32 * current_dir;
- struct linux_dirent32 * previous;
- int count;
- int error;
-};
-
-static int filldir(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
- unsigned int d_type)
-{
- struct linux_dirent32 * dirent;
- struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
- int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
-
- buf->error = -EINVAL; /* only used if we fail.. */
- if (reclen > buf->count)
- return -EINVAL;
- dirent = buf->previous;
- if (dirent)
- put_user(offset, &dirent->d_off);
- dirent = buf->current_dir;
- buf->previous = dirent;
- put_user(ino, &dirent->d_ino);
- put_user(reclen, &dirent->d_reclen);
- copy_to_user(dirent->d_name, name, namlen);
- put_user(0, dirent->d_name + namlen);
- put_user(d_type, (char *) dirent + reclen - 1);
- dirent = (void *) dirent + reclen;
- buf->current_dir = dirent;
- buf->count -= reclen;
- return 0;
-}
-
-asmlinkage int sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count)
+asmlinkage long compat_sys_lstat64(char __user * filename,
+ struct compat_stat64 __user *statbuf)
{
- struct file * file;
- struct linux_dirent32 * lastdirent;
- struct getdents_callback32 buf;
- int error = -EBADF;
-
- file = fget(fd);
- if (!file)
- goto out;
+ struct kstat stat;
+ int error = vfs_lstat(filename, &stat);
- buf.current_dir = dirent;
- buf.previous = NULL;
- buf.count = count;
- buf.error = 0;
-
- error = vfs_readdir(file, filldir, &buf);
- if (error < 0)
- goto out_putf;
- lastdirent = buf.previous;
- error = buf.error;
- if(lastdirent) {
- put_user(file->f_pos, &lastdirent->d_off);
- error = count - buf.count;
- }
-out_putf:
- fput(file);
-out:
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
return error;
}
-/* end of readdir & getdents */
-
-/*
- * Ooo, nasty. We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static int get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
+asmlinkage long compat_sys_fstat64(unsigned int fd,
+ struct compat_stat64 __user * statbuf)
{
- if (ufdset) {
- unsigned long odd;
-
- if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
- return -EFAULT;
-
- odd = n & 1UL;
- n &= ~1UL;
- while (n) {
- unsigned long h, l;
- __get_user(l, ufdset);
- __get_user(h, ufdset+1);
- ufdset += 2;
- *fdset++ = h << 32 | l;
- n -= 2;
- }
- if (odd)
- __get_user(*fdset, ufdset);
- } else {
- /* Tricky, must clear full unsigned long in the
- * kernel fdset at the end, this makes sure that
- * actually happens.
- */
- memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
- }
- return 0;
-}
+ struct kstat stat;
+ int error = vfs_fstat(fd, &stat);
-static void set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
- unsigned long odd;
-
- if (!ufdset)
- return;
-
- odd = n & 1UL;
- n &= ~1UL;
- while (n) {
- unsigned long h, l;
- l = *fdset++;
- h = l >> 32;
- __put_user(l, ufdset);
- __put_user(h, ufdset+1);
- ufdset += 2;
- n -= 2;
- }
- if (odd)
- __put_user(*fdset, ufdset);
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
+ return error;
}
-#define MAX_SELECT_SECONDS \
- ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
-
-asmlinkage int sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
+asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
+ struct compat_stat64 __user * statbuf, int flag)
{
- fd_set_bits fds;
- struct compat_timeval *tvp = (struct compat_timeval *)AA(tvp_x);
- char *bits;
- unsigned long nn;
- long timeout;
- int ret, size;
-
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (tvp) {
- time_t sec, usec;
-
- if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
- || (ret = __get_user(sec, &tvp->tv_sec))
- || (ret = __get_user(usec, &tvp->tv_usec)))
- goto out_nofds;
-
- ret = -EINVAL;
- if(sec < 0 || usec < 0)
- goto out_nofds;
-
- if ((unsigned long) sec < MAX_SELECT_SECONDS) {
- timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
- timeout += sec * (unsigned long) HZ;
- }
- }
+ struct kstat stat;
+ int error = -EINVAL;
- ret = -EINVAL;
- if (n < 0)
- goto out_nofds;
- if (n > current->files->max_fdset)
- n = current->files->max_fdset;
-
- /*
- * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
- * since we used fdset we need to allocate memory in units of
- * long-words.
- */
- ret = -ENOMEM;
- size = FDS_BYTES(n);
- bits = kmalloc(6 * size, GFP_KERNEL);
- if (!bits)
- goto out_nofds;
- fds.in = (unsigned long *) bits;
- fds.out = (unsigned long *) (bits + size);
- fds.ex = (unsigned long *) (bits + 2*size);
- fds.res_in = (unsigned long *) (bits + 3*size);
- fds.res_out = (unsigned long *) (bits + 4*size);
- fds.res_ex = (unsigned long *) (bits + 5*size);
-
- nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
- if ((ret = get_fd_set32(nn, fds.in, inp)) ||
- (ret = get_fd_set32(nn, fds.out, outp)) ||
- (ret = get_fd_set32(nn, fds.ex, exp)))
+ if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
goto out;
- zero_fd_set(n, fds.res_in);
- zero_fd_set(n, fds.res_out);
- zero_fd_set(n, fds.res_ex);
-
- ret = do_select(n, &fds, &timeout);
-
- if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
- time_t sec = 0, usec = 0;
- if (timeout) {
- sec = timeout / HZ;
- usec = timeout % HZ;
- usec *= (1000000/HZ);
- }
- put_user(sec, &tvp->tv_sec);
- put_user(usec, &tvp->tv_usec);
- }
- if (ret < 0)
- goto out;
- if (!ret) {
- ret = -ERESTARTNOHAND;
- if (signal_pending(current))
- goto out;
- ret = 0;
- }
+ if (flag & AT_SYMLINK_NOFOLLOW)
+ error = vfs_lstat_fd(dfd, filename, &stat);
+ else
+ error = vfs_stat_fd(dfd, filename, &stat);
- set_fd_set32(nn, inp, fds.res_in);
- set_fd_set32(nn, outp, fds.res_out);
- set_fd_set32(nn, exp, fds.res_ex);
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
out:
- kfree(bits);
-out_nofds:
- return ret;
-}
-
-int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
-{
- int err;
-
- if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
- !old_valid_dev(stat->rdev))
- return -EOVERFLOW;
-
- err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
- err |= put_user(stat->ino, &statbuf->st_ino);
- err |= put_user(stat->mode, &statbuf->st_mode);
- err |= put_user(stat->nlink, &statbuf->st_nlink);
- err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
- err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
- err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
- err |= put_user(stat->size, &statbuf->st_size);
- err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
- err |= put_user(0, &statbuf->__unused1);
- err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
- err |= put_user(0, &statbuf->__unused2);
- err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
- err |= put_user(0, &statbuf->__unused3);
- err |= put_user(stat->blksize, &statbuf->st_blksize);
- err |= put_user(stat->blocks, &statbuf->st_blocks);
- err |= put_user(0, &statbuf->__unused4[0]);
- err |= put_user(0, &statbuf->__unused4[1]);
-
- return err;
+ return error;
}
-asmlinkage int sys32_sysfs(int option, u32 arg1, u32 arg2)
+asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
{
return sys_sysfs(option, arg1, arg2);
}
char _f[20-2*sizeof(int)-sizeof(int)];
};
-asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
+asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
{
struct sysinfo s;
int ret, err;
mm_segment_t old_fs = get_fs ();
set_fs(KERNEL_DS);
- ret = sys_sysinfo(&s);
+ ret = sys_sysinfo((struct sysinfo __user *) &s);
set_fs(old_fs);
/* Check to see if any memory value is too large for 32-bit and
* scale down if needed.
return ret;
}
-asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec *interval)
+asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
{
struct timespec t;
int ret;
mm_segment_t old_fs = get_fs ();
set_fs (KERNEL_DS);
- ret = sys_sched_rr_get_interval(pid, &t);
+ ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
set_fs (old_fs);
if (put_compat_timespec(&t, interval))
return -EFAULT;
return ret;
}
-asmlinkage int sys32_rt_sigprocmask(int how, compat_sigset_t *set, compat_sigset_t *oset, compat_size_t sigsetsize)
+asmlinkage long compat_sys_rt_sigprocmask(int how,
+ compat_sigset_t __user *set,
+ compat_sigset_t __user *oset,
+ compat_size_t sigsetsize)
{
sigset_t s;
compat_sigset_t s32;
}
}
set_fs (KERNEL_DS);
- ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, sigsetsize);
+ ret = sys_rt_sigprocmask(how,
+ set ? (sigset_t __user *) &s : NULL,
+ oset ? (sigset_t __user *) &s : NULL,
+ sigsetsize);
set_fs (old_fs);
if (ret) return ret;
if (oset) {
return 0;
}
-asmlinkage int sys32_rt_sigpending(compat_sigset_t *set, compat_size_t sigsetsize)
+asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
+ compat_size_t sigsetsize)
{
sigset_t s;
compat_sigset_t s32;
mm_segment_t old_fs = get_fs();
set_fs (KERNEL_DS);
- ret = sys_rt_sigpending(&s, sigsetsize);
+ ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
set_fs (old_fs);
if (!ret) {
switch (_NSIG_WORDS) {
return ret;
}
-asmlinkage int
-sys32_rt_sigtimedwait(compat_sigset_t *uthese, siginfo_t32 *uinfo,
- struct compat_timespec *uts, compat_size_t sigsetsize)
-{
- int ret, sig;
- sigset_t these;
- compat_sigset_t these32;
- struct timespec ts;
- siginfo_t info;
- long timeout = 0;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user (&these32, uthese, sizeof(compat_sigset_t)))
- return -EFAULT;
-
- switch (_NSIG_WORDS) {
- case 4: these.sig[3] = these32.sig[6] | (((long)these32.sig[7]) << 32);
- case 3: these.sig[2] = these32.sig[4] | (((long)these32.sig[5]) << 32);
- case 2: these.sig[1] = these32.sig[2] | (((long)these32.sig[3]) << 32);
- case 1: these.sig[0] = these32.sig[0] | (((long)these32.sig[1]) << 32);
- }
-
- /*
- * Invert the set of allowed signals to get those we
- * want to block.
- */
- sigdelsetmask(&these, sigmask(SIGKILL)|sigmask(SIGSTOP));
- signotset(&these);
-
- if (uts) {
- if (get_compat_timespec(&ts, uts))
- return -EINVAL;
- if (ts.tv_nsec >= 1000000000L || ts.tv_nsec < 0
- || ts.tv_sec < 0)
- return -EINVAL;
- }
-
- spin_lock_irq(¤t->sighand->siglock);
- sig = dequeue_signal(current, &these, &info);
- if (!sig) {
- timeout = MAX_SCHEDULE_TIMEOUT;
- if (uts)
- timeout = (timespec_to_jiffies(&ts)
- + (ts.tv_sec || ts.tv_nsec));
-
- if (timeout) {
- /* None ready -- temporarily unblock those we're
- * interested while we are sleeping in so that we'll
- * be awakened when they arrive. */
- current->real_blocked = current->blocked;
- sigandsets(¤t->blocked, ¤t->blocked, &these);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- current->state = TASK_INTERRUPTIBLE;
- timeout = schedule_timeout(timeout);
-
- spin_lock_irq(¤t->sighand->siglock);
- sig = dequeue_signal(current, &these, &info);
- current->blocked = current->real_blocked;
- siginitset(¤t->real_blocked, 0);
- recalc_sigpending();
- }
- }
- spin_unlock_irq(¤t->sighand->siglock);
-
- if (sig) {
- ret = sig;
- if (uinfo) {
- if (copy_siginfo_to_user32(uinfo, &info))
- ret = -EFAULT;
- }
- } else {
- ret = -EAGAIN;
- if (timeout)
- ret = -EINTR;
- }
-
- return ret;
-}
-
-asmlinkage int
-sys32_rt_sigqueueinfo(int pid, int sig, siginfo_t32 *uinfo)
+asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
+ struct compat_siginfo __user *uinfo)
{
siginfo_t info;
int ret;
mm_segment_t old_fs = get_fs();
- if (copy_from_user (&info, uinfo, 3*sizeof(int)) ||
- copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
+ if (copy_siginfo_from_user32(&info, uinfo))
return -EFAULT;
+
set_fs (KERNEL_DS);
- ret = sys_rt_sigqueueinfo(pid, sig, &info);
+ ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
set_fs (old_fs);
return ret;
}
-extern void check_pending(int signum);
-
-asmlinkage int sys32_sigaction (int sig, struct old_sigaction32 *act, struct old_sigaction32 *oact)
+asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
+ struct old_sigaction32 __user *oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
u32 u_handler, u_restorer;
ret = get_user(u_handler, &act->sa_handler);
- new_ka.sa.sa_handler = (void *) (long) u_handler;
+ new_ka.sa.sa_handler = compat_ptr(u_handler);
ret |= __get_user(u_restorer, &act->sa_restorer);
- new_ka.sa.sa_restorer = (void *) (long) u_restorer;
+ new_ka.sa.sa_restorer = compat_ptr(u_restorer);
ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
ret |= __get_user(mask, &act->sa_mask);
if (ret)
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
- ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
- ret |= __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer);
+ ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+ ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
}
-asmlinkage int
-sys32_rt_sigaction(int sig, struct sigaction32 *act, struct sigaction32 *oact,
- void *restorer, compat_size_t sigsetsize)
+asmlinkage long compat_sys_rt_sigaction(int sig,
+ struct sigaction32 __user *act,
+ struct sigaction32 __user *oact,
+ void __user *restorer,
+ compat_size_t sigsetsize)
{
struct k_sigaction new_ka, old_ka;
int ret;
new_ka.ka_restorer = restorer;
ret = get_user(u_handler, &act->sa_handler);
- new_ka.sa.sa_handler = (void *) (long) u_handler;
+ new_ka.sa.sa_handler = compat_ptr(u_handler);
ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
switch (_NSIG_WORDS) {
case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
}
ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
ret |= __get_user(u_restorer, &act->sa_restorer);
- new_ka.sa.sa_restorer = (void *) (long) u_restorer;
+ new_ka.sa.sa_restorer = compat_ptr(u_restorer);
if (ret)
return -EFAULT;
}
case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
}
- ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
+ ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- ret |= __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer);
+ ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
if (ret)
ret = -EFAULT;
}
return ret;
}
-
-/*
- * count32() counts the number of arguments/envelopes
- */
-static int count32(u32 * argv, int max)
-{
- int i = 0;
-
- if (argv != NULL) {
- for (;;) {
- u32 p; int error;
-
- error = get_user(p,argv);
- if (error)
- return error;
- if (!p)
- break;
- argv++;
- if (++i > max)
- return -E2BIG;
- }
- }
- return i;
-}
-
-/*
- * 'copy_string32()' copies argument/envelope strings from user
- * memory to free pages in kernel mem. These are in a format ready
- * to be put directly into the top of new user memory.
- */
-static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
-{
- while (argc-- > 0) {
- u32 str;
- int len;
- unsigned long pos;
-
- if (get_user(str, argv + argc) ||
- !str ||
- !(len = strnlen_user((char *)A(str), bprm->p)))
- return -EFAULT;
-
- if (bprm->p < len)
- return -E2BIG;
-
- bprm->p -= len;
-
- pos = bprm->p;
- while (len) {
- char *kaddr;
- struct page *page;
- int offset, bytes_to_copy, new, err;
-
- offset = pos % PAGE_SIZE;
- page = bprm->page[pos / PAGE_SIZE];
- new = 0;
- if (!page) {
- page = alloc_page(GFP_USER);
- bprm->page[pos / PAGE_SIZE] = page;
- if (!page)
- return -ENOMEM;
- new = 1;
- }
- kaddr = kmap(page);
-
- if (new && offset)
- memset(kaddr, 0, offset);
- bytes_to_copy = PAGE_SIZE - offset;
- if (bytes_to_copy > len) {
- bytes_to_copy = len;
- if (new)
- memset(kaddr+offset+len, 0,
- PAGE_SIZE-offset-len);
- }
-
- err = copy_from_user(kaddr + offset, (char *)A(str),
- bytes_to_copy);
- kunmap(page);
-
- if (err)
- return -EFAULT;
-
- pos += bytes_to_copy;
- str += bytes_to_copy;
- len -= bytes_to_copy;
- }
- }
- return 0;
-}
-
-/*
- * sys32_execve() executes a new program.
- */
-static inline int
-do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
-{
- struct linux_binprm bprm;
- struct file * file;
- int retval;
- int i;
-
- sched_balance_exec();
-
- file = open_exec(filename);
-
- retval = PTR_ERR(file);
- if (IS_ERR(file))
- return retval;
-
- bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
- memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
-
- bprm.file = file;
- bprm.filename = filename;
- bprm.interp = filename;
- bprm.sh_bang = 0;
- bprm.loader = 0;
- bprm.exec = 0;
- bprm.security = NULL;
- bprm.mm = mm_alloc();
- retval = -ENOMEM;
- if (!bprm.mm)
- goto out_file;
-
- retval = init_new_context(current, bprm.mm);
- if (retval < 0)
- goto out_mm;
-
- bprm.argc = count32(argv, bprm.p / sizeof(u32));
- if ((retval = bprm.argc) < 0)
- goto out_mm;
-
- bprm.envc = count32(envp, bprm.p / sizeof(u32));
- if ((retval = bprm.envc) < 0)
- goto out_mm;
-
- retval = security_bprm_alloc(&bprm);
- if (retval)
- goto out;
-
- retval = prepare_binprm(&bprm);
- if (retval < 0)
- goto out;
-
- retval = copy_strings_kernel(1, &bprm.filename, &bprm);
- if (retval < 0)
- goto out;
-
- bprm.exec = bprm.p;
- retval = copy_strings32(bprm.envc, envp, &bprm);
- if (retval < 0)
- goto out;
-
- retval = copy_strings32(bprm.argc, argv, &bprm);
- if (retval < 0)
- goto out;
-
- retval = search_binary_handler(&bprm, regs);
- if (retval >= 0) {
- /* execve success */
- security_bprm_free(&bprm);
- return retval;
- }
-
-out:
- /* Something went wrong, return the inode and free the argument pages*/
- for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
- struct page * page = bprm.page[i];
- if (page)
- __free_page(page);
- }
-
- if (bprm.security)
- security_bprm_free(&bprm);
-
-out_mm:
- if (bprm.mm)
- mmdrop(bprm.mm);
-
-out_file:
- if (bprm.file) {
- allow_write_access(bprm.file);
- fput(bprm.file);
- }
- return retval;
-}
-
/*
* sparc32_execve() executes a new program after the asm stub has set
* things up for us. This should basically do what I want it to.
*/
-asmlinkage int sparc32_execve(struct pt_regs *regs)
+asmlinkage long sparc32_execve(struct pt_regs *regs)
{
- int error, base = 0;
- char *filename;
+ int error, base = 0;
+ char *filename;
/* User register window flush is done by entry.S */
- /* Check for indirect call. */
- if((u32)regs->u_regs[UREG_G1] == 0)
- base = 1;
+ /* Check for indirect call. */
+ if ((u32)regs->u_regs[UREG_G1] == 0)
+ base = 1;
- filename = getname((char *)AA(regs->u_regs[base + UREG_I0]));
+ filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
error = PTR_ERR(filename);
- if(IS_ERR(filename))
- goto out;
- error = do_execve32(filename,
- (u32 *)AA((u32)regs->u_regs[base + UREG_I1]),
- (u32 *)AA((u32)regs->u_regs[base + UREG_I2]), regs);
- putname(filename);
-
- if(!error) {
+ if (IS_ERR(filename))
+ goto out;
+
+ error = compat_do_execve(filename,
+ compat_ptr(regs->u_regs[base + UREG_I1]),
+ compat_ptr(regs->u_regs[base + UREG_I2]), regs);
+
+ putname(filename);
+
+ if (!error) {
fprs_write(0);
current_thread_info()->xfsr[0] = 0;
current_thread_info()->fpsaved[0] = 0;
regs->tstate &= ~TSTATE_PEF;
- current->ptrace &= ~PT_DTRACE;
}
out:
- return error;
+ return error;
}
#ifdef CONFIG_MODULES
-asmlinkage int sys32_init_module(void *umod, u32 len, const char *uargs)
+asmlinkage long sys32_init_module(void __user *umod, u32 len,
+ const char __user *uargs)
{
return sys_init_module(umod, len, uargs);
}
-asmlinkage int sys32_delete_module(const char *name_user, unsigned int flags)
+asmlinkage long sys32_delete_module(const char __user *name_user,
+ unsigned int flags)
{
return sys_delete_module(name_user, flags);
}
#else /* CONFIG_MODULES */
-asmlinkage int
-sys32_init_module(const char *name_user, struct module *mod_user)
+asmlinkage long sys32_init_module(const char __user *name_user,
+ struct module __user *mod_user)
{
return -ENOSYS;
}
-asmlinkage int
-sys32_delete_module(const char *name_user)
+asmlinkage long sys32_delete_module(const char __user *name_user)
{
return -ENOSYS;
}
#endif /* CONFIG_MODULES */
-#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
-/* Stuff for NFS server syscalls... */
-struct nfsctl_svc32 {
- u16 svc32_port;
- s32 svc32_nthreads;
-};
-
-struct nfsctl_client32 {
- s8 cl32_ident[NFSCLNT_IDMAX+1];
- s32 cl32_naddr;
- struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
- s32 cl32_fhkeytype;
- s32 cl32_fhkeylen;
- u8 cl32_fhkey[NFSCLNT_KEYMAX];
-};
-
-struct nfsctl_export32 {
- s8 ex32_client[NFSCLNT_IDMAX+1];
- s8 ex32_path[NFS_MAXPATHLEN+1];
- compat_dev_t ex32_dev;
- compat_ino_t ex32_ino;
- s32 ex32_flags;
- compat_uid_t ex32_anon_uid;
- compat_gid_t ex32_anon_gid;
-};
-
-struct nfsctl_fdparm32 {
- struct sockaddr gd32_addr;
- s8 gd32_path[NFS_MAXPATHLEN+1];
- s32 gd32_version;
-};
-
-struct nfsctl_fsparm32 {
- struct sockaddr gd32_addr;
- s8 gd32_path[NFS_MAXPATHLEN+1];
- s32 gd32_maxlen;
-};
-
-struct nfsctl_arg32 {
- s32 ca32_version; /* safeguard */
- union {
- struct nfsctl_svc32 u32_svc;
- struct nfsctl_client32 u32_client;
- struct nfsctl_export32 u32_export;
- struct nfsctl_fdparm32 u32_getfd;
- struct nfsctl_fsparm32 u32_getfs;
- } u;
-#define ca32_svc u.u32_svc
-#define ca32_client u.u32_client
-#define ca32_export u.u32_export
-#define ca32_getfd u.u32_getfd
-#define ca32_getfs u.u32_getfs
-};
-
-union nfsctl_res32 {
- __u8 cr32_getfh[NFS_FHSIZE];
- struct knfsd_fh cr32_getfs;
-};
-
-static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
-{
- int err;
-
- err = __get_user(karg->ca_version, &arg32->ca32_version);
- err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
- err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
- return err;
-}
-
-static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
-{
- int err;
-
- err = __get_user(karg->ca_version, &arg32->ca32_version);
- err |= copy_from_user(&karg->ca_client.cl_ident[0],
- &arg32->ca32_client.cl32_ident[0],
- NFSCLNT_IDMAX);
- err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
- err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
- &arg32->ca32_client.cl32_addrlist[0],
- (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
- err |= __get_user(karg->ca_client.cl_fhkeytype,
- &arg32->ca32_client.cl32_fhkeytype);
- err |= __get_user(karg->ca_client.cl_fhkeylen,
- &arg32->ca32_client.cl32_fhkeylen);
- err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
- &arg32->ca32_client.cl32_fhkey[0],
- NFSCLNT_KEYMAX);
- return (err ? -EFAULT : 0);
-}
-
-static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
-{
- int err;
-
- err = __get_user(karg->ca_version, &arg32->ca32_version);
- err |= copy_from_user(&karg->ca_export.ex_client[0],
- &arg32->ca32_export.ex32_client[0],
- NFSCLNT_IDMAX);
- err |= copy_from_user(&karg->ca_export.ex_path[0],
- &arg32->ca32_export.ex32_path[0],
- NFS_MAXPATHLEN);
- err |= __get_user(karg->ca_export.ex_dev,
- &arg32->ca32_export.ex32_dev);
- err |= __get_user(karg->ca_export.ex_ino,
- &arg32->ca32_export.ex32_ino);
- err |= __get_user(karg->ca_export.ex_flags,
- &arg32->ca32_export.ex32_flags);
- err |= __get_user(karg->ca_export.ex_anon_uid,
- &arg32->ca32_export.ex32_anon_uid);
- err |= __get_user(karg->ca_export.ex_anon_gid,
- &arg32->ca32_export.ex32_anon_gid);
- karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
- karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
- return (err ? -EFAULT : 0);
-}
-
-static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
-{
- int err;
-
- err = __get_user(karg->ca_version, &arg32->ca32_version);
- err |= copy_from_user(&karg->ca_getfd.gd_addr,
- &arg32->ca32_getfd.gd32_addr,
- (sizeof(struct sockaddr)));
- err |= copy_from_user(&karg->ca_getfd.gd_path,
- &arg32->ca32_getfd.gd32_path,
- (NFS_MAXPATHLEN+1));
- err |= __get_user(karg->ca_getfd.gd_version,
- &arg32->ca32_getfd.gd32_version);
- return (err ? -EFAULT : 0);
-}
-
-static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
-{
- int err;
-
- err = __get_user(karg->ca_version, &arg32->ca32_version);
- err |= copy_from_user(&karg->ca_getfs.gd_addr,
- &arg32->ca32_getfs.gd32_addr,
- (sizeof(struct sockaddr)));
- err |= copy_from_user(&karg->ca_getfs.gd_path,
- &arg32->ca32_getfs.gd32_path,
- (NFS_MAXPATHLEN+1));
- err |= __get_user(karg->ca_getfs.gd_maxlen,
- &arg32->ca32_getfs.gd32_maxlen);
- return (err ? -EFAULT : 0);
-}
-
-/* This really doesn't need translations, we are only passing
- * back a union which contains opaque nfs file handle data.
- */
-static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
-{
- return (copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0);
-}
-
-int asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
-{
- struct nfsctl_arg *karg = NULL;
- union nfsctl_res *kres = NULL;
- mm_segment_t oldfs;
- int err;
-
- karg = kmalloc(sizeof(*karg), GFP_USER);
- if(!karg)
- return -ENOMEM;
- if(res32) {
- kres = kmalloc(sizeof(*kres), GFP_USER);
- if(!kres) {
- kfree(karg);
- return -ENOMEM;
- }
- }
- switch(cmd) {
- case NFSCTL_SVC:
- err = nfs_svc32_trans(karg, arg32);
- break;
- case NFSCTL_ADDCLIENT:
- err = nfs_clnt32_trans(karg, arg32);
- break;
- case NFSCTL_DELCLIENT:
- err = nfs_clnt32_trans(karg, arg32);
- break;
- case NFSCTL_EXPORT:
- case NFSCTL_UNEXPORT:
- err = nfs_exp32_trans(karg, arg32);
- break;
- case NFSCTL_GETFD:
- err = nfs_getfd32_trans(karg, arg32);
- break;
- case NFSCTL_GETFS:
- err = nfs_getfs32_trans(karg, arg32);
- break;
- default:
- err = -EINVAL;
- break;
- }
- if(err)
- goto done;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_nfsservctl(cmd, karg, kres);
- set_fs(oldfs);
-
- if (err)
- goto done;
-
- if((cmd == NFSCTL_GETFD) ||
- (cmd == NFSCTL_GETFS))
- err = nfs_getfh32_res_trans(kres, res32);
-
-done:
- if(karg)
- kfree(karg);
- if(kres)
- kfree(kres);
- return err;
-}
-#else /* !NFSD */
-int asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2)
-{
- return sys_ni_syscall();
-}
-#endif
-
/* Translations due to time_t size differences. Which affects all
sorts of things, like timeval and itimerval. */
extern struct timezone sys_tz;
-asmlinkage int sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
+ struct timezone __user *tz)
{
if (tv) {
struct timeval ktv;
- do_gettimeofday(&ktv);
+ vx_gettimeofday(&ktv);
if (put_tv32(tv, &ktv))
return -EFAULT;
}
return 0;
}
-static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
{
long usec;
return 0;
}
-asmlinkage int sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
+asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
+ struct timezone __user *tz)
{
struct timespec kts;
struct timezone ktz;
return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
}
-asmlinkage int sys32_utimes(char *filename, struct compat_timeval *tvs)
+asmlinkage long sys32_utimes(char __user *filename,
+ struct compat_timeval __user *tvs)
{
- char *kfilename;
struct timeval ktvs[2];
- mm_segment_t old_fs;
- int ret;
-
- kfilename = getname(filename);
- ret = PTR_ERR(kfilename);
- if (!IS_ERR(kfilename)) {
- if (tvs) {
- if (get_tv32(&ktvs[0], tvs) ||
- get_tv32(&ktvs[1], 1+tvs))
- return -EFAULT;
- }
-
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- ret = do_utimes(kfilename, (tvs ? &ktvs[0] : NULL));
- set_fs(old_fs);
- putname(kfilename);
+ if (tvs) {
+ if (get_tv32(&ktvs[0], tvs) ||
+ get_tv32(&ktvs[1], 1+tvs))
+ return -EFAULT;
}
- return ret;
+
+ return do_utimes(AT_FDCWD, filename, (tvs ? &ktvs[0] : NULL));
}
/* These are here just in case some old sparc32 binary calls it. */
-asmlinkage int sys32_pause(void)
+asmlinkage long sys32_pause(void)
{
current->state = TASK_INTERRUPTIBLE;
schedule();
return -ERESTARTNOHAND;
}
-/* PCI config space poking. */
-
-asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
-{
- return sys_pciconfig_read((unsigned long) bus,
- (unsigned long) dfn,
- (unsigned long) off,
- (unsigned long) len,
- (unsigned char *)AA(ubuf));
-}
-
-asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
-{
- return sys_pciconfig_write((unsigned long) bus,
- (unsigned long) dfn,
- (unsigned long) off,
- (unsigned long) len,
- (unsigned char *)AA(ubuf));
-}
-
-asmlinkage int sys32_prctl(int option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
-{
- return sys_prctl(option,
- (unsigned long) arg2,
- (unsigned long) arg3,
- (unsigned long) arg4,
- (unsigned long) arg5);
-}
-
-
-asmlinkage compat_ssize_t sys32_pread64(unsigned int fd, char *ubuf,
- compat_size_t count, u32 poshi, u32 poslo)
+asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+ char __user *ubuf,
+ compat_size_t count,
+ unsigned long poshi,
+ unsigned long poslo)
{
- return sys_pread64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+ return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
}
-asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd, char *ubuf,
- compat_size_t count, u32 poshi, u32 poslo)
+asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+ char __user *ubuf,
+ compat_size_t count,
+ unsigned long poshi,
+ unsigned long poslo)
{
- return sys_pwrite64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+ return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
}
-asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count)
+asmlinkage long compat_sys_readahead(int fd,
+ unsigned long offhi,
+ unsigned long offlo,
+ compat_size_t count)
{
- return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
+ return sys_readahead(fd, (offhi << 32) | offlo, count);
}
-long sys32_fadvise64(int fd, u32 offhi, u32 offlo, s32 len, int advice)
+long compat_sys_fadvise64(int fd,
+ unsigned long offhi,
+ unsigned long offlo,
+ compat_size_t len, int advice)
{
- return sys_fadvise64_64(fd, ((loff_t)AA(offhi)<<32)|AA(offlo), len, advice);
+ return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
}
-long sys32_fadvise64_64(int fd, u32 offhi, u32 offlo, u32 lenhi, u32 lenlo, int advice)
+long compat_sys_fadvise64_64(int fd,
+ unsigned long offhi, unsigned long offlo,
+ unsigned long lenhi, unsigned long lenlo,
+ int advice)
{
- return sys_fadvise64_64(fd, ((loff_t)AA(offhi)<<32)|AA(offlo),
- ((loff_t)AA(lenhi)<<32)|AA(lenlo), advice);
+ return sys_fadvise64_64(fd,
+ (offhi << 32) | offlo,
+ (lenhi << 32) | lenlo,
+ advice);
}
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 count)
+asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
+ compat_off_t __user *offset,
+ compat_size_t count)
{
mm_segment_t old_fs = get_fs();
int ret;
return -EFAULT;
set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
+ ret = sys_sendfile(out_fd, in_fd,
+ offset ? (off_t __user *) &of : NULL,
+ count);
set_fs(old_fs);
if (offset && put_user(of, offset))
return ret;
}
-asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t *offset, s32 count)
+asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
+ compat_loff_t __user *offset,
+ compat_size_t count)
{
mm_segment_t old_fs = get_fs();
int ret;
return -EFAULT;
set_fs(KERNEL_DS);
- ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
+ ret = sys_sendfile64(out_fd, in_fd,
+ offset ? (loff_t __user *) &lof : NULL,
+ count);
set_fs(old_fs);
if (offset && put_user(lof, offset))
return ret;
}
-/* Handle adjtimex compatibility. */
-
-struct timex32 {
- u32 modes;
- s32 offset, freq, maxerror, esterror;
- s32 status, constant, precision, tolerance;
- struct compat_timeval time;
- s32 tick;
- s32 ppsfreq, jitter, shift, stabil;
- s32 jitcnt, calcnt, errcnt, stbcnt;
- s32 :32; s32 :32; s32 :32; s32 :32;
- s32 :32; s32 :32; s32 :32; s32 :32;
- s32 :32; s32 :32; s32 :32; s32 :32;
-};
-
-extern int do_adjtimex(struct timex *);
-
-asmlinkage int sys32_adjtimex(struct timex32 *utp)
-{
- struct timex txc;
- int ret;
-
- memset(&txc, 0, sizeof(struct timex));
-
- if(get_user(txc.modes, &utp->modes) ||
- __get_user(txc.offset, &utp->offset) ||
- __get_user(txc.freq, &utp->freq) ||
- __get_user(txc.maxerror, &utp->maxerror) ||
- __get_user(txc.esterror, &utp->esterror) ||
- __get_user(txc.status, &utp->status) ||
- __get_user(txc.constant, &utp->constant) ||
- __get_user(txc.precision, &utp->precision) ||
- __get_user(txc.tolerance, &utp->tolerance) ||
- __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
- __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
- __get_user(txc.tick, &utp->tick) ||
- __get_user(txc.ppsfreq, &utp->ppsfreq) ||
- __get_user(txc.jitter, &utp->jitter) ||
- __get_user(txc.shift, &utp->shift) ||
- __get_user(txc.stabil, &utp->stabil) ||
- __get_user(txc.jitcnt, &utp->jitcnt) ||
- __get_user(txc.calcnt, &utp->calcnt) ||
- __get_user(txc.errcnt, &utp->errcnt) ||
- __get_user(txc.stbcnt, &utp->stbcnt))
- return -EFAULT;
-
- ret = do_adjtimex(&txc);
-
- if(put_user(txc.modes, &utp->modes) ||
- __put_user(txc.offset, &utp->offset) ||
- __put_user(txc.freq, &utp->freq) ||
- __put_user(txc.maxerror, &utp->maxerror) ||
- __put_user(txc.esterror, &utp->esterror) ||
- __put_user(txc.status, &utp->status) ||
- __put_user(txc.constant, &utp->constant) ||
- __put_user(txc.precision, &utp->precision) ||
- __put_user(txc.tolerance, &utp->tolerance) ||
- __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
- __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
- __put_user(txc.tick, &utp->tick) ||
- __put_user(txc.ppsfreq, &utp->ppsfreq) ||
- __put_user(txc.jitter, &utp->jitter) ||
- __put_user(txc.shift, &utp->shift) ||
- __put_user(txc.stabil, &utp->stabil) ||
- __put_user(txc.jitcnt, &utp->jitcnt) ||
- __put_user(txc.calcnt, &utp->calcnt) ||
- __put_user(txc.errcnt, &utp->errcnt) ||
- __put_user(txc.stbcnt, &utp->stbcnt))
- ret = -EFAULT;
-
- return ret;
-}
-
/* This is just a version for 32-bit applications which does
* not force O_LARGEFILE on.
*/
-asmlinkage long sparc32_open(const char * filename, int flags, int mode)
+asmlinkage long sparc32_open(const char __user *filename,
+ int flags, int mode)
{
- char * tmp;
- int fd, error;
-
- tmp = getname(filename);
- fd = PTR_ERR(tmp);
- if (!IS_ERR(tmp)) {
- fd = get_unused_fd();
- if (fd >= 0) {
- struct file * f = filp_open(tmp, flags, mode);
- error = PTR_ERR(f);
- if (IS_ERR(f))
- goto out_error;
- fd_install(fd, f);
- }
-out:
- putname(tmp);
- }
- return fd;
-
-out_error:
- put_unused_fd(fd);
- fd = error;
- goto out;
+ return do_sys_open(AT_FDCWD, filename, flags, mode);
}
extern unsigned long do_mremap(unsigned long addr,
{
struct vm_area_struct *vma;
unsigned long ret = -EINVAL;
- unsigned long new_addr = AA(__new_addr);
+ unsigned long new_addr = __new_addr;
- if (old_len > 0xf0000000UL || new_len > 0xf0000000UL)
+ if (old_len > STACK_TOP32 || new_len > STACK_TOP32)
goto out;
- if (addr > 0xf0000000UL - old_len)
+ if (addr > STACK_TOP32 - old_len)
goto out;
down_write(¤t->mm->mmap_sem);
if (flags & MREMAP_FIXED) {
- if (new_addr > 0xf0000000UL - new_len)
+ if (new_addr > STACK_TOP32 - new_len)
goto out_sem;
- } else if (addr > 0xf0000000UL - new_len) {
+ } else if (addr > STACK_TOP32 - new_len) {
unsigned long map_flags = 0;
struct file *file = NULL;
return ret;
}
-asmlinkage int sys_setpriority32(u32 which, u32 who, u32 niceval)
-{
- return sys_setpriority((int) which,
- (int) who,
- (int) niceval);
-}
-
struct __sysctl_args32 {
u32 name;
int nlen;
u32 __unused[4];
};
-asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
{
-#ifndef CONFIG_SYSCTL
+#ifndef CONFIG_SYSCTL_SYSCALL
return -ENOSYS;
#else
struct __sysctl_args32 tmp;
int error;
- size_t oldlen, *oldlenp = NULL;
- unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+ size_t oldlen, __user *oldlenp = NULL;
+ unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
if (copy_from_user(&tmp, args, sizeof(tmp)))
return -EFAULT;
basically copy the whole sysctl.c here, and
glibc's __sysctl uses rw memory for the structure
anyway. */
- if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
- put_user(oldlen, (size_t *)addr))
+ if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
+ put_user(oldlen, (size_t __user *)addr))
return -EFAULT;
- oldlenp = (size_t *)addr;
+ oldlenp = (size_t __user *)addr;
}
lock_kernel();
- error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
- oldlenp, (void *)A(tmp.newval), tmp.newlen);
+ error = do_sysctl((int __user *)(unsigned long) tmp.name,
+ tmp.nlen,
+ (void __user *)(unsigned long) tmp.oldval,
+ oldlenp,
+ (void __user *)(unsigned long) tmp.newval,
+ tmp.newlen);
unlock_kernel();
if (oldlenp) {
if (!error) {
- if (get_user(oldlen, (size_t *)addr) ||
- put_user(oldlen, (u32 *)A(tmp.oldlenp)))
+ if (get_user(oldlen, (size_t __user *)addr) ||
+ put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
error = -EFAULT;
}
- copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+ if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
+ error = -EFAULT;
}
return error;
#endif
}
-long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char *buf, size_t len)
+long sys32_lookup_dcookie(unsigned long cookie_high,
+ unsigned long cookie_low,
+ char __user *buf, size_t len)
{
- return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
+ return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
buf, len);
}
-extern asmlinkage long
-sys_timer_create(clockid_t which_clock, struct sigevent *timer_event_spec,
- timer_t * created_timer_id);
-
-long
-sys32_timer_create(u32 clock, struct sigevent32 *se32, timer_t *timer_id)
+long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
{
- struct sigevent se;
- mm_segment_t oldfs;
- timer_t t;
- long err;
-
- if (se32 == NULL)
- return sys_timer_create(clock, NULL, timer_id);
-
- memset(&se, 0, sizeof(struct sigevent));
- if (get_user(se.sigev_value.sival_int, &se32->sigev_value.sival_int) ||
- __get_user(se.sigev_signo, &se32->sigev_signo) ||
- __get_user(se.sigev_notify, &se32->sigev_notify) ||
- __copy_from_user(&se._sigev_un._pad, &se32->_sigev_un._pad,
- sizeof(se._sigev_un._pad)))
- return -EFAULT;
-
- if (!access_ok(VERIFY_WRITE,timer_id,sizeof(timer_t)))
- return -EFAULT;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_timer_create(clock, &se, &t);
- set_fs(oldfs);
-
- if (!err)
- err = __put_user (t, timer_id);
-
- return err;
+ return sys_sync_file_range(fd,
+ (off_high << 32) | off_low,
+ (nb_high << 32) | nb_low,
+ flags);
}
-
git://git.onelab.eu / linux-2.6.git / blobdiff