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1275 |
phoenix |
/* $Id: sys_sparc32.c,v 1.1.1.1 2004-04-15 01:34:49 phoenix Exp $
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* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
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*
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* Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* environment.
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*/
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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#include <linux/file.h>
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#include <linux/signal.h>
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#include <linux/utime.h>
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#include <linux/resource.h>
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#include <linux/times.h>
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#include <linux/utsname.h>
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#include <linux/timex.h>
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#include <linux/smp.h>
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#include <linux/smp_lock.h>
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#include <linux/sem.h>
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#include <linux/msg.h>
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#include <linux/shm.h>
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#include <linux/slab.h>
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#include <linux/uio.h>
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#include <linux/nfs_fs.h>
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#include <linux/smb_fs.h>
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#include <linux/smb_mount.h>
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#include <linux/ncp_fs.h>
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#include <linux/quota.h>
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#include <linux/quotacompat.h>
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#include <linux/module.h>
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#include <linux/sunrpc/svc.h>
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#include <linux/nfsd/nfsd.h>
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#include <linux/nfsd/cache.h>
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#include <linux/nfsd/xdr.h>
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#include <linux/nfsd/syscall.h>
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#include <linux/poll.h>
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#include <linux/personality.h>
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#include <linux/stat.h>
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#include <linux/filter.h>
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#include <linux/highmem.h>
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#include <linux/highuid.h>
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#include <linux/mman.h>
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#include <linux/ipv6.h>
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#include <linux/in.h>
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#include <linux/icmpv6.h>
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#include <linux/sysctl.h>
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#include <linux/dnotify.h>
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#include <linux/netfilter_ipv4/ip_tables.h>
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#include <asm/types.h>
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#include <asm/ipc.h>
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#include <asm/uaccess.h>
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#include <asm/fpumacro.h>
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#include <asm/semaphore.h>
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#include <net/scm.h>
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/* Use this to get at 32-bit user passed pointers. */
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/* Things to consider: the low-level assembly stub does
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srl x, 0, x for first four arguments, so if you have
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pointer to something in the first four arguments, just
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declare it as a pointer, not u32. On the other side,
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arguments from 5th onwards should be declared as u32
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for pointers, and need AA() around each usage.
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A() macro should be used for places where you e.g.
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have some internal variable u32 and just want to get
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rid of a compiler warning. AA() has to be used in
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places where you want to convert a function argument
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to 32bit pointer or when you e.g. access pt_regs
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structure and want to consider 32bit registers only.
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-jj
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*/
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#define A(__x) ((unsigned long)(__x))
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#define AA(__x) \
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({ unsigned long __ret; \
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__asm__ ("srl %0, 0, %0" \
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: "=r" (__ret) \
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: "0" (__x)); \
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__ret; \
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})
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extern asmlinkage long sys_chown(const char *, uid_t,gid_t);
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extern asmlinkage long sys_lchown(const char *, uid_t,gid_t);
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extern asmlinkage long sys_fchown(unsigned int, uid_t,gid_t);
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extern asmlinkage long sys_setregid(gid_t, gid_t);
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extern asmlinkage long sys_setgid(gid_t);
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extern asmlinkage long sys_setreuid(uid_t, uid_t);
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extern asmlinkage long sys_setuid(uid_t);
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extern asmlinkage long sys_setresuid(uid_t, uid_t, uid_t);
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extern asmlinkage long sys_setresgid(gid_t, gid_t, gid_t);
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extern asmlinkage long sys_setfsuid(uid_t);
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extern asmlinkage long sys_setfsgid(gid_t);
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/* For this source file, we want overflow handling. */
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#undef high2lowuid
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#undef high2lowgid
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#undef low2highuid
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#undef low2highgid
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#undef SET_UID16
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#undef SET_GID16
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#undef NEW_TO_OLD_UID
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#undef NEW_TO_OLD_GID
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#undef SET_OLDSTAT_UID
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#undef SET_OLDSTAT_GID
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#undef SET_STAT_UID
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#undef SET_STAT_GID
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#define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
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#define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
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#define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
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#define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
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#define SET_UID16(var, uid) var = high2lowuid(uid)
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#define SET_GID16(var, gid) var = high2lowgid(gid)
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#define NEW_TO_OLD_UID(uid) high2lowuid(uid)
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#define NEW_TO_OLD_GID(gid) high2lowgid(gid)
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#define SET_OLDSTAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
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#define SET_OLDSTAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
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#define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
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#define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
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asmlinkage long sys32_chown16(const char * filename, u16 user, u16 group)
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{
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return sys_chown(filename, low2highuid(user), low2highgid(group));
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}
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asmlinkage long sys32_lchown16(const char * filename, u16 user, u16 group)
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{
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return sys_lchown(filename, low2highuid(user), low2highgid(group));
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}
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asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
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{
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return sys_fchown(fd, low2highuid(user), low2highgid(group));
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}
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asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
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{
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return sys_setregid(low2highgid(rgid), low2highgid(egid));
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}
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asmlinkage long sys32_setgid16(u16 gid)
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{
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return sys_setgid((gid_t)gid);
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}
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asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
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{
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return sys_setreuid(low2highuid(ruid), low2highuid(euid));
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}
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asmlinkage long sys32_setuid16(u16 uid)
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{
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return sys_setuid((uid_t)uid);
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}
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asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
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{
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return sys_setresuid(low2highuid(ruid), low2highuid(euid),
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low2highuid(suid));
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}
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asmlinkage long sys32_getresuid16(u16 *ruid, u16 *euid, u16 *suid)
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{
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int retval;
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if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
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!(retval = put_user(high2lowuid(current->euid), euid)))
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retval = put_user(high2lowuid(current->suid), suid);
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return retval;
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}
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asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
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{
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return sys_setresgid(low2highgid(rgid), low2highgid(egid),
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low2highgid(sgid));
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}
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asmlinkage long sys32_getresgid16(u16 *rgid, u16 *egid, u16 *sgid)
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{
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int retval;
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if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
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!(retval = put_user(high2lowgid(current->egid), egid)))
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retval = put_user(high2lowgid(current->sgid), sgid);
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return retval;
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}
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asmlinkage long sys32_setfsuid16(u16 uid)
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{
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return sys_setfsuid((uid_t)uid);
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}
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asmlinkage long sys32_setfsgid16(u16 gid)
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{
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return sys_setfsgid((gid_t)gid);
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}
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asmlinkage long sys32_getgroups16(int gidsetsize, u16 *grouplist)
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{
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u16 groups[NGROUPS];
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int i,j;
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if (gidsetsize < 0)
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return -EINVAL;
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i = current->ngroups;
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if (gidsetsize) {
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if (i > gidsetsize)
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return -EINVAL;
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for(j=0;j<i;j++)
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groups[j] = current->groups[j];
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if (copy_to_user(grouplist, groups, sizeof(u16)*i))
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return -EFAULT;
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}
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return i;
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}
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asmlinkage long sys32_setgroups16(int gidsetsize, u16 *grouplist)
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{
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u16 groups[NGROUPS];
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int i;
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if (!capable(CAP_SETGID))
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return -EPERM;
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if ((unsigned) gidsetsize > NGROUPS)
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return -EINVAL;
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if (copy_from_user(groups, grouplist, gidsetsize * sizeof(u16)))
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return -EFAULT;
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for (i = 0 ; i < gidsetsize ; i++)
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current->groups[i] = (gid_t)groups[i];
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current->ngroups = gidsetsize;
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return 0;
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}
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asmlinkage long sys32_getuid16(void)
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{
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return high2lowuid(current->uid);
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}
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| 247 |
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| 248 |
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asmlinkage long sys32_geteuid16(void)
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| 249 |
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{
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| 250 |
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return high2lowuid(current->euid);
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| 251 |
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}
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| 252 |
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| 253 |
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asmlinkage long sys32_getgid16(void)
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| 254 |
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{
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return high2lowgid(current->gid);
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}
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| 257 |
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| 258 |
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asmlinkage long sys32_getegid16(void)
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| 259 |
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{
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| 260 |
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return high2lowgid(current->egid);
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| 261 |
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}
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| 262 |
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| 263 |
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/* 32-bit timeval and related flotsam. */
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| 264 |
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| 265 |
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struct timeval32
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| 266 |
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{
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| 267 |
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int tv_sec, tv_usec;
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| 268 |
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};
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| 269 |
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| 270 |
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struct itimerval32
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| 271 |
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{
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| 272 |
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struct timeval32 it_interval;
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| 273 |
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struct timeval32 it_value;
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| 274 |
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};
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| 275 |
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| 276 |
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static inline long get_tv32(struct timeval *o, struct timeval32 *i)
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| 277 |
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{
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| 278 |
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return (!access_ok(VERIFY_READ, tv32, sizeof(*tv32)) ||
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| 279 |
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(__get_user(o->tv_sec, &i->tv_sec) |
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| 280 |
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__get_user(o->tv_usec, &i->tv_usec)));
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| 281 |
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}
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| 282 |
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| 283 |
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static inline long put_tv32(struct timeval32 *o, struct timeval *i)
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| 284 |
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{
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| 285 |
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return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
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| 286 |
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(__put_user(i->tv_sec, &o->tv_sec) |
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| 287 |
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__put_user(i->tv_usec, &o->tv_usec)));
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| 288 |
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}
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| 289 |
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| 290 |
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static inline long get_it32(struct itimerval *o, struct itimerval32 *i)
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| 291 |
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{
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| 292 |
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return (!access_ok(VERIFY_READ, i32, sizeof(*i32)) ||
|
| 293 |
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(__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
|
| 294 |
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__get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
|
| 295 |
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__get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
|
| 296 |
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__get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
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| 297 |
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}
|
| 298 |
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|
| 299 |
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static inline long put_it32(struct itimerval32 *o, struct itimerval *i)
|
| 300 |
|
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{
|
| 301 |
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return (!access_ok(VERIFY_WRITE, i32, sizeof(*i32)) ||
|
| 302 |
|
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(__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
|
| 303 |
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__put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
|
| 304 |
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__put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
|
| 305 |
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__put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
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| 306 |
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}
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| 307 |
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| 308 |
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extern asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on);
|
| 309 |
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| 310 |
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asmlinkage int sys32_ioperm(u32 from, u32 num, int on)
|
| 311 |
|
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{
|
| 312 |
|
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return sys_ioperm((unsigned long)from, (unsigned long)num, on);
|
| 313 |
|
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}
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| 314 |
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|
| 315 |
|
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struct msgbuf32 { s32 mtype; char mtext[1]; };
|
| 316 |
|
|
|
| 317 |
|
|
struct ipc_perm32
|
| 318 |
|
|
{
|
| 319 |
|
|
key_t key;
|
| 320 |
|
|
__kernel_uid_t32 uid;
|
| 321 |
|
|
__kernel_gid_t32 gid;
|
| 322 |
|
|
__kernel_uid_t32 cuid;
|
| 323 |
|
|
__kernel_gid_t32 cgid;
|
| 324 |
|
|
__kernel_mode_t32 mode;
|
| 325 |
|
|
unsigned short seq;
|
| 326 |
|
|
};
|
| 327 |
|
|
|
| 328 |
|
|
struct semid_ds32 {
|
| 329 |
|
|
struct ipc_perm32 sem_perm; /* permissions .. see ipc.h */
|
| 330 |
|
|
__kernel_time_t32 sem_otime; /* last semop time */
|
| 331 |
|
|
__kernel_time_t32 sem_ctime; /* last change time */
|
| 332 |
|
|
u32 sem_base; /* ptr to first semaphore in array */
|
| 333 |
|
|
u32 sem_pending; /* pending operations to be processed */
|
| 334 |
|
|
u32 sem_pending_last; /* last pending operation */
|
| 335 |
|
|
u32 undo; /* undo requests on this array */
|
| 336 |
|
|
unsigned short sem_nsems; /* no. of semaphores in array */
|
| 337 |
|
|
};
|
| 338 |
|
|
|
| 339 |
|
|
struct semid64_ds32 {
|
| 340 |
|
|
struct ipc64_perm sem_perm; /* this structure is the same on sparc32 and sparc64 */
|
| 341 |
|
|
unsigned int __pad1;
|
| 342 |
|
|
__kernel_time_t32 sem_otime;
|
| 343 |
|
|
unsigned int __pad2;
|
| 344 |
|
|
__kernel_time_t32 sem_ctime;
|
| 345 |
|
|
u32 sem_nsems;
|
| 346 |
|
|
u32 __unused1;
|
| 347 |
|
|
u32 __unused2;
|
| 348 |
|
|
};
|
| 349 |
|
|
|
| 350 |
|
|
struct msqid_ds32
|
| 351 |
|
|
{
|
| 352 |
|
|
struct ipc_perm32 msg_perm;
|
| 353 |
|
|
u32 msg_first;
|
| 354 |
|
|
u32 msg_last;
|
| 355 |
|
|
__kernel_time_t32 msg_stime;
|
| 356 |
|
|
__kernel_time_t32 msg_rtime;
|
| 357 |
|
|
__kernel_time_t32 msg_ctime;
|
| 358 |
|
|
u32 wwait;
|
| 359 |
|
|
u32 rwait;
|
| 360 |
|
|
unsigned short msg_cbytes;
|
| 361 |
|
|
unsigned short msg_qnum;
|
| 362 |
|
|
unsigned short msg_qbytes;
|
| 363 |
|
|
__kernel_ipc_pid_t32 msg_lspid;
|
| 364 |
|
|
__kernel_ipc_pid_t32 msg_lrpid;
|
| 365 |
|
|
};
|
| 366 |
|
|
|
| 367 |
|
|
struct msqid64_ds32 {
|
| 368 |
|
|
struct ipc64_perm msg_perm;
|
| 369 |
|
|
unsigned int __pad1;
|
| 370 |
|
|
__kernel_time_t32 msg_stime;
|
| 371 |
|
|
unsigned int __pad2;
|
| 372 |
|
|
__kernel_time_t32 msg_rtime;
|
| 373 |
|
|
unsigned int __pad3;
|
| 374 |
|
|
__kernel_time_t32 msg_ctime;
|
| 375 |
|
|
unsigned int msg_cbytes;
|
| 376 |
|
|
unsigned int msg_qnum;
|
| 377 |
|
|
unsigned int msg_qbytes;
|
| 378 |
|
|
__kernel_pid_t32 msg_lspid;
|
| 379 |
|
|
__kernel_pid_t32 msg_lrpid;
|
| 380 |
|
|
unsigned int __unused1;
|
| 381 |
|
|
unsigned int __unused2;
|
| 382 |
|
|
};
|
| 383 |
|
|
|
| 384 |
|
|
|
| 385 |
|
|
struct shmid_ds32 {
|
| 386 |
|
|
struct ipc_perm32 shm_perm;
|
| 387 |
|
|
int shm_segsz;
|
| 388 |
|
|
__kernel_time_t32 shm_atime;
|
| 389 |
|
|
__kernel_time_t32 shm_dtime;
|
| 390 |
|
|
__kernel_time_t32 shm_ctime;
|
| 391 |
|
|
__kernel_ipc_pid_t32 shm_cpid;
|
| 392 |
|
|
__kernel_ipc_pid_t32 shm_lpid;
|
| 393 |
|
|
unsigned short shm_nattch;
|
| 394 |
|
|
};
|
| 395 |
|
|
|
| 396 |
|
|
struct shmid64_ds32 {
|
| 397 |
|
|
struct ipc64_perm shm_perm;
|
| 398 |
|
|
unsigned int __pad1;
|
| 399 |
|
|
__kernel_time_t32 shm_atime;
|
| 400 |
|
|
unsigned int __pad2;
|
| 401 |
|
|
__kernel_time_t32 shm_dtime;
|
| 402 |
|
|
unsigned int __pad3;
|
| 403 |
|
|
__kernel_time_t32 shm_ctime;
|
| 404 |
|
|
__kernel_size_t32 shm_segsz;
|
| 405 |
|
|
__kernel_pid_t32 shm_cpid;
|
| 406 |
|
|
__kernel_pid_t32 shm_lpid;
|
| 407 |
|
|
unsigned int shm_nattch;
|
| 408 |
|
|
unsigned int __unused1;
|
| 409 |
|
|
unsigned int __unused2;
|
| 410 |
|
|
};
|
| 411 |
|
|
|
| 412 |
|
|
|
| 413 |
|
|
/*
|
| 414 |
|
|
* sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation..
|
| 415 |
|
|
*
|
| 416 |
|
|
* This is really horribly ugly.
|
| 417 |
|
|
*/
|
| 418 |
|
|
#define IPCOP_MASK(__x) (1UL << ((__x)&~IPC_64))
|
| 419 |
|
|
static int do_sys32_semctl(int first, int second, int third, void *uptr)
|
| 420 |
|
|
{
|
| 421 |
|
|
union semun fourth;
|
| 422 |
|
|
u32 pad;
|
| 423 |
|
|
int err = -EINVAL;
|
| 424 |
|
|
|
| 425 |
|
|
if (!uptr)
|
| 426 |
|
|
goto out;
|
| 427 |
|
|
err = -EFAULT;
|
| 428 |
|
|
if (get_user (pad, (u32 *)uptr))
|
| 429 |
|
|
goto out;
|
| 430 |
|
|
if ((third & ~IPC_64) == SETVAL)
|
| 431 |
|
|
fourth.val = (int)pad;
|
| 432 |
|
|
else
|
| 433 |
|
|
fourth.__pad = (void *)A(pad);
|
| 434 |
|
|
if (IPCOP_MASK (third) &
|
| 435 |
|
|
(IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SEM_INFO) | IPCOP_MASK (GETVAL) |
|
| 436 |
|
|
IPCOP_MASK (GETPID) | IPCOP_MASK (GETNCNT) | IPCOP_MASK (GETZCNT) |
|
| 437 |
|
|
IPCOP_MASK (GETALL) | IPCOP_MASK (SETALL) | IPCOP_MASK (IPC_RMID))) {
|
| 438 |
|
|
err = sys_semctl (first, second, third, fourth);
|
| 439 |
|
|
} else if (third & IPC_64) {
|
| 440 |
|
|
struct semid64_ds s;
|
| 441 |
|
|
struct semid64_ds32 *usp = (struct semid64_ds32 *)A(pad);
|
| 442 |
|
|
mm_segment_t old_fs;
|
| 443 |
|
|
int need_back_translation;
|
| 444 |
|
|
|
| 445 |
|
|
if (third == (IPC_SET|IPC_64)) {
|
| 446 |
|
|
err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
|
| 447 |
|
|
err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
|
| 448 |
|
|
err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
|
| 449 |
|
|
if (err)
|
| 450 |
|
|
goto out;
|
| 451 |
|
|
fourth.__pad = &s;
|
| 452 |
|
|
}
|
| 453 |
|
|
need_back_translation =
|
| 454 |
|
|
(IPCOP_MASK (third) &
|
| 455 |
|
|
(IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
|
| 456 |
|
|
if (need_back_translation)
|
| 457 |
|
|
fourth.__pad = &s;
|
| 458 |
|
|
old_fs = get_fs ();
|
| 459 |
|
|
set_fs (KERNEL_DS);
|
| 460 |
|
|
err = sys_semctl (first, second, third, fourth);
|
| 461 |
|
|
set_fs (old_fs);
|
| 462 |
|
|
if (need_back_translation) {
|
| 463 |
|
|
int err2 = copy_to_user (&usp->sem_perm, &s.sem_perm, sizeof(struct ipc64_perm) + 2*sizeof(time_t));
|
| 464 |
|
|
err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
|
| 465 |
|
|
if (err2) err = -EFAULT;
|
| 466 |
|
|
}
|
| 467 |
|
|
} else {
|
| 468 |
|
|
struct semid_ds s;
|
| 469 |
|
|
struct semid_ds32 *usp = (struct semid_ds32 *)A(pad);
|
| 470 |
|
|
mm_segment_t old_fs;
|
| 471 |
|
|
int need_back_translation;
|
| 472 |
|
|
|
| 473 |
|
|
if (third == IPC_SET) {
|
| 474 |
|
|
err = get_user (s.sem_perm.uid, &usp->sem_perm.uid);
|
| 475 |
|
|
err |= __get_user (s.sem_perm.gid, &usp->sem_perm.gid);
|
| 476 |
|
|
err |= __get_user (s.sem_perm.mode, &usp->sem_perm.mode);
|
| 477 |
|
|
if (err)
|
| 478 |
|
|
goto out;
|
| 479 |
|
|
fourth.__pad = &s;
|
| 480 |
|
|
}
|
| 481 |
|
|
need_back_translation =
|
| 482 |
|
|
(IPCOP_MASK (third) &
|
| 483 |
|
|
(IPCOP_MASK (SEM_STAT) | IPCOP_MASK (IPC_STAT))) != 0;
|
| 484 |
|
|
if (need_back_translation)
|
| 485 |
|
|
fourth.__pad = &s;
|
| 486 |
|
|
old_fs = get_fs ();
|
| 487 |
|
|
set_fs (KERNEL_DS);
|
| 488 |
|
|
err = sys_semctl (first, second, third, fourth);
|
| 489 |
|
|
set_fs (old_fs);
|
| 490 |
|
|
if (need_back_translation) {
|
| 491 |
|
|
int err2 = put_user (s.sem_perm.key, &usp->sem_perm.key);
|
| 492 |
|
|
err2 |= __put_user (high2lowuid(s.sem_perm.uid), &usp->sem_perm.uid);
|
| 493 |
|
|
err2 |= __put_user (high2lowgid(s.sem_perm.gid), &usp->sem_perm.gid);
|
| 494 |
|
|
err2 |= __put_user (high2lowuid(s.sem_perm.cuid), &usp->sem_perm.cuid);
|
| 495 |
|
|
err2 |= __put_user (high2lowgid(s.sem_perm.cgid), &usp->sem_perm.cgid);
|
| 496 |
|
|
err2 |= __put_user (s.sem_perm.mode, &usp->sem_perm.mode);
|
| 497 |
|
|
err2 |= __put_user (s.sem_perm.seq, &usp->sem_perm.seq);
|
| 498 |
|
|
err2 |= __put_user (s.sem_otime, &usp->sem_otime);
|
| 499 |
|
|
err2 |= __put_user (s.sem_ctime, &usp->sem_ctime);
|
| 500 |
|
|
err2 |= __put_user (s.sem_nsems, &usp->sem_nsems);
|
| 501 |
|
|
if (err2) err = -EFAULT;
|
| 502 |
|
|
}
|
| 503 |
|
|
}
|
| 504 |
|
|
out:
|
| 505 |
|
|
return err;
|
| 506 |
|
|
}
|
| 507 |
|
|
|
| 508 |
|
|
static int do_sys32_msgsnd (int first, int second, int third, void *uptr)
|
| 509 |
|
|
{
|
| 510 |
|
|
struct msgbuf *p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
|
| 511 |
|
|
struct msgbuf32 *up = (struct msgbuf32 *)uptr;
|
| 512 |
|
|
mm_segment_t old_fs;
|
| 513 |
|
|
int err;
|
| 514 |
|
|
|
| 515 |
|
|
if (!p)
|
| 516 |
|
|
return -ENOMEM;
|
| 517 |
|
|
err = -EFAULT;
|
| 518 |
|
|
if (get_user (p->mtype, &up->mtype) ||
|
| 519 |
|
|
__copy_from_user (p->mtext, &up->mtext, second))
|
| 520 |
|
|
goto out;
|
| 521 |
|
|
old_fs = get_fs ();
|
| 522 |
|
|
set_fs (KERNEL_DS);
|
| 523 |
|
|
err = sys_msgsnd (first, p, second, third);
|
| 524 |
|
|
set_fs (old_fs);
|
| 525 |
|
|
out:
|
| 526 |
|
|
kfree (p);
|
| 527 |
|
|
return err;
|
| 528 |
|
|
}
|
| 529 |
|
|
|
| 530 |
|
|
static int do_sys32_msgrcv (int first, int second, int msgtyp, int third,
|
| 531 |
|
|
int version, void *uptr)
|
| 532 |
|
|
{
|
| 533 |
|
|
struct msgbuf32 *up;
|
| 534 |
|
|
struct msgbuf *p;
|
| 535 |
|
|
mm_segment_t old_fs;
|
| 536 |
|
|
int err;
|
| 537 |
|
|
|
| 538 |
|
|
if (!version) {
|
| 539 |
|
|
struct ipc_kludge *uipck = (struct ipc_kludge *)uptr;
|
| 540 |
|
|
struct ipc_kludge ipck;
|
| 541 |
|
|
|
| 542 |
|
|
err = -EINVAL;
|
| 543 |
|
|
if (!uptr)
|
| 544 |
|
|
goto out;
|
| 545 |
|
|
err = -EFAULT;
|
| 546 |
|
|
if (copy_from_user (&ipck, uipck, sizeof (struct ipc_kludge)))
|
| 547 |
|
|
goto out;
|
| 548 |
|
|
uptr = (void *)A(ipck.msgp);
|
| 549 |
|
|
msgtyp = ipck.msgtyp;
|
| 550 |
|
|
}
|
| 551 |
|
|
err = -ENOMEM;
|
| 552 |
|
|
p = kmalloc (second + sizeof (struct msgbuf), GFP_USER);
|
| 553 |
|
|
if (!p)
|
| 554 |
|
|
goto out;
|
| 555 |
|
|
old_fs = get_fs ();
|
| 556 |
|
|
set_fs (KERNEL_DS);
|
| 557 |
|
|
err = sys_msgrcv (first, p, second, msgtyp, third);
|
| 558 |
|
|
set_fs (old_fs);
|
| 559 |
|
|
if (err < 0)
|
| 560 |
|
|
goto free_then_out;
|
| 561 |
|
|
up = (struct msgbuf32 *)uptr;
|
| 562 |
|
|
if (put_user (p->mtype, &up->mtype) ||
|
| 563 |
|
|
__copy_to_user (&up->mtext, p->mtext, err))
|
| 564 |
|
|
err = -EFAULT;
|
| 565 |
|
|
free_then_out:
|
| 566 |
|
|
kfree (p);
|
| 567 |
|
|
out:
|
| 568 |
|
|
return err;
|
| 569 |
|
|
}
|
| 570 |
|
|
|
| 571 |
|
|
static int do_sys32_msgctl (int first, int second, void *uptr)
|
| 572 |
|
|
{
|
| 573 |
|
|
int err;
|
| 574 |
|
|
|
| 575 |
|
|
if (IPCOP_MASK (second) &
|
| 576 |
|
|
(IPCOP_MASK (IPC_INFO) | IPCOP_MASK (MSG_INFO) |
|
| 577 |
|
|
IPCOP_MASK (IPC_RMID))) {
|
| 578 |
|
|
err = sys_msgctl (first, second, (struct msqid_ds *)uptr);
|
| 579 |
|
|
} else if (second & IPC_64) {
|
| 580 |
|
|
struct msqid64_ds m;
|
| 581 |
|
|
struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
|
| 582 |
|
|
mm_segment_t old_fs;
|
| 583 |
|
|
|
| 584 |
|
|
if (second == (IPC_SET|IPC_64)) {
|
| 585 |
|
|
err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
|
| 586 |
|
|
err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
|
| 587 |
|
|
err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
|
| 588 |
|
|
err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
|
| 589 |
|
|
if (err)
|
| 590 |
|
|
goto out;
|
| 591 |
|
|
}
|
| 592 |
|
|
old_fs = get_fs ();
|
| 593 |
|
|
set_fs (KERNEL_DS);
|
| 594 |
|
|
err = sys_msgctl (first, second, (struct msqid_ds *)&m);
|
| 595 |
|
|
set_fs (old_fs);
|
| 596 |
|
|
if (IPCOP_MASK (second) &
|
| 597 |
|
|
(IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
|
| 598 |
|
|
int err2 = copy_to_user(&up->msg_perm, &m.msg_perm, sizeof(struct ipc64_perm) + 3*sizeof(time_t));
|
| 599 |
|
|
err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
|
| 600 |
|
|
err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
|
| 601 |
|
|
err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
|
| 602 |
|
|
err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
|
| 603 |
|
|
err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
|
| 604 |
|
|
if (err2)
|
| 605 |
|
|
err = -EFAULT;
|
| 606 |
|
|
}
|
| 607 |
|
|
} else {
|
| 608 |
|
|
struct msqid_ds m;
|
| 609 |
|
|
struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
|
| 610 |
|
|
mm_segment_t old_fs;
|
| 611 |
|
|
|
| 612 |
|
|
if (second == IPC_SET) {
|
| 613 |
|
|
err = get_user (m.msg_perm.uid, &up->msg_perm.uid);
|
| 614 |
|
|
err |= __get_user (m.msg_perm.gid, &up->msg_perm.gid);
|
| 615 |
|
|
err |= __get_user (m.msg_perm.mode, &up->msg_perm.mode);
|
| 616 |
|
|
err |= __get_user (m.msg_qbytes, &up->msg_qbytes);
|
| 617 |
|
|
if (err)
|
| 618 |
|
|
goto out;
|
| 619 |
|
|
}
|
| 620 |
|
|
old_fs = get_fs ();
|
| 621 |
|
|
set_fs (KERNEL_DS);
|
| 622 |
|
|
err = sys_msgctl (first, second, &m);
|
| 623 |
|
|
set_fs (old_fs);
|
| 624 |
|
|
if (IPCOP_MASK (second) &
|
| 625 |
|
|
(IPCOP_MASK (MSG_STAT) | IPCOP_MASK (IPC_STAT))) {
|
| 626 |
|
|
int err2 = put_user (m.msg_perm.key, &up->msg_perm.key);
|
| 627 |
|
|
err2 |= __put_user (high2lowuid(m.msg_perm.uid), &up->msg_perm.uid);
|
| 628 |
|
|
err2 |= __put_user (high2lowgid(m.msg_perm.gid), &up->msg_perm.gid);
|
| 629 |
|
|
err2 |= __put_user (high2lowuid(m.msg_perm.cuid), &up->msg_perm.cuid);
|
| 630 |
|
|
err2 |= __put_user (high2lowgid(m.msg_perm.cgid), &up->msg_perm.cgid);
|
| 631 |
|
|
err2 |= __put_user (m.msg_perm.mode, &up->msg_perm.mode);
|
| 632 |
|
|
err2 |= __put_user (m.msg_perm.seq, &up->msg_perm.seq);
|
| 633 |
|
|
err2 |= __put_user (m.msg_stime, &up->msg_stime);
|
| 634 |
|
|
err2 |= __put_user (m.msg_rtime, &up->msg_rtime);
|
| 635 |
|
|
err2 |= __put_user (m.msg_ctime, &up->msg_ctime);
|
| 636 |
|
|
err2 |= __put_user (m.msg_cbytes, &up->msg_cbytes);
|
| 637 |
|
|
err2 |= __put_user (m.msg_qnum, &up->msg_qnum);
|
| 638 |
|
|
err2 |= __put_user (m.msg_qbytes, &up->msg_qbytes);
|
| 639 |
|
|
err2 |= __put_user (m.msg_lspid, &up->msg_lspid);
|
| 640 |
|
|
err2 |= __put_user (m.msg_lrpid, &up->msg_lrpid);
|
| 641 |
|
|
if (err2)
|
| 642 |
|
|
err = -EFAULT;
|
| 643 |
|
|
}
|
| 644 |
|
|
}
|
| 645 |
|
|
|
| 646 |
|
|
out:
|
| 647 |
|
|
return err;
|
| 648 |
|
|
}
|
| 649 |
|
|
|
| 650 |
|
|
static int do_sys32_shmat (int first, int second, int third, int version, void *uptr)
|
| 651 |
|
|
{
|
| 652 |
|
|
unsigned long raddr;
|
| 653 |
|
|
u32 *uaddr = (u32 *)A((u32)third);
|
| 654 |
|
|
int err = -EINVAL;
|
| 655 |
|
|
|
| 656 |
|
|
if (version == 1)
|
| 657 |
|
|
goto out;
|
| 658 |
|
|
err = sys_shmat (first, uptr, second, &raddr);
|
| 659 |
|
|
if (err)
|
| 660 |
|
|
goto out;
|
| 661 |
|
|
err = put_user (raddr, uaddr);
|
| 662 |
|
|
out:
|
| 663 |
|
|
return err;
|
| 664 |
|
|
}
|
| 665 |
|
|
|
| 666 |
|
|
static int do_sys32_shmctl (int first, int second, void *uptr)
|
| 667 |
|
|
{
|
| 668 |
|
|
int err;
|
| 669 |
|
|
|
| 670 |
|
|
if (IPCOP_MASK (second) &
|
| 671 |
|
|
(IPCOP_MASK (IPC_INFO) | IPCOP_MASK (SHM_LOCK) | IPCOP_MASK (SHM_UNLOCK) |
|
| 672 |
|
|
IPCOP_MASK (IPC_RMID))) {
|
| 673 |
|
|
if (second == (IPC_INFO|IPC_64))
|
| 674 |
|
|
second = IPC_INFO; /* So that we don't have to translate it */
|
| 675 |
|
|
err = sys_shmctl (first, second, (struct shmid_ds *)uptr);
|
| 676 |
|
|
} else if ((second & IPC_64) && second != (SHM_INFO|IPC_64)) {
|
| 677 |
|
|
struct shmid64_ds s;
|
| 678 |
|
|
struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
|
| 679 |
|
|
mm_segment_t old_fs;
|
| 680 |
|
|
|
| 681 |
|
|
if (second == (IPC_SET|IPC_64)) {
|
| 682 |
|
|
err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
|
| 683 |
|
|
err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
|
| 684 |
|
|
err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
|
| 685 |
|
|
if (err)
|
| 686 |
|
|
goto out;
|
| 687 |
|
|
}
|
| 688 |
|
|
old_fs = get_fs ();
|
| 689 |
|
|
set_fs (KERNEL_DS);
|
| 690 |
|
|
err = sys_shmctl (first, second, (struct shmid_ds *)&s);
|
| 691 |
|
|
set_fs (old_fs);
|
| 692 |
|
|
if (err < 0)
|
| 693 |
|
|
goto out;
|
| 694 |
|
|
|
| 695 |
|
|
/* Mask it even in this case so it becomes a CSE. */
|
| 696 |
|
|
if (IPCOP_MASK (second) &
|
| 697 |
|
|
(IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
|
| 698 |
|
|
int err2 = copy_to_user (&up->shm_perm, &s.shm_perm, sizeof(struct ipc64_perm) + 3*sizeof(time_t));
|
| 699 |
|
|
err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
|
| 700 |
|
|
err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
|
| 701 |
|
|
err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
|
| 702 |
|
|
err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
|
| 703 |
|
|
if (err2)
|
| 704 |
|
|
err = -EFAULT;
|
| 705 |
|
|
}
|
| 706 |
|
|
} else {
|
| 707 |
|
|
struct shmid_ds s;
|
| 708 |
|
|
struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
|
| 709 |
|
|
mm_segment_t old_fs;
|
| 710 |
|
|
|
| 711 |
|
|
second &= ~IPC_64;
|
| 712 |
|
|
if (second == IPC_SET) {
|
| 713 |
|
|
err = get_user (s.shm_perm.uid, &up->shm_perm.uid);
|
| 714 |
|
|
err |= __get_user (s.shm_perm.gid, &up->shm_perm.gid);
|
| 715 |
|
|
err |= __get_user (s.shm_perm.mode, &up->shm_perm.mode);
|
| 716 |
|
|
if (err)
|
| 717 |
|
|
goto out;
|
| 718 |
|
|
}
|
| 719 |
|
|
old_fs = get_fs ();
|
| 720 |
|
|
set_fs (KERNEL_DS);
|
| 721 |
|
|
err = sys_shmctl (first, second, &s);
|
| 722 |
|
|
set_fs (old_fs);
|
| 723 |
|
|
if (err < 0)
|
| 724 |
|
|
goto out;
|
| 725 |
|
|
|
| 726 |
|
|
/* Mask it even in this case so it becomes a CSE. */
|
| 727 |
|
|
if (second == SHM_INFO) {
|
| 728 |
|
|
struct shm_info32 {
|
| 729 |
|
|
int used_ids;
|
| 730 |
|
|
u32 shm_tot, shm_rss, shm_swp;
|
| 731 |
|
|
u32 swap_attempts, swap_successes;
|
| 732 |
|
|
} *uip = (struct shm_info32 *)uptr;
|
| 733 |
|
|
struct shm_info *kp = (struct shm_info *)&s;
|
| 734 |
|
|
int err2 = put_user (kp->used_ids, &uip->used_ids);
|
| 735 |
|
|
err2 |= __put_user (kp->shm_tot, &uip->shm_tot);
|
| 736 |
|
|
err2 |= __put_user (kp->shm_rss, &uip->shm_rss);
|
| 737 |
|
|
err2 |= __put_user (kp->shm_swp, &uip->shm_swp);
|
| 738 |
|
|
err2 |= __put_user (kp->swap_attempts, &uip->swap_attempts);
|
| 739 |
|
|
err2 |= __put_user (kp->swap_successes, &uip->swap_successes);
|
| 740 |
|
|
if (err2)
|
| 741 |
|
|
err = -EFAULT;
|
| 742 |
|
|
} else if (IPCOP_MASK (second) &
|
| 743 |
|
|
(IPCOP_MASK (SHM_STAT) | IPCOP_MASK (IPC_STAT))) {
|
| 744 |
|
|
int err2 = put_user (s.shm_perm.key, &up->shm_perm.key);
|
| 745 |
|
|
err2 |= __put_user (high2lowuid(s.shm_perm.uid), &up->shm_perm.uid);
|
| 746 |
|
|
err2 |= __put_user (high2lowuid(s.shm_perm.gid), &up->shm_perm.gid);
|
| 747 |
|
|
err2 |= __put_user (high2lowuid(s.shm_perm.cuid), &up->shm_perm.cuid);
|
| 748 |
|
|
err2 |= __put_user (high2lowuid(s.shm_perm.cgid), &up->shm_perm.cgid);
|
| 749 |
|
|
err2 |= __put_user (s.shm_perm.mode, &up->shm_perm.mode);
|
| 750 |
|
|
err2 |= __put_user (s.shm_perm.seq, &up->shm_perm.seq);
|
| 751 |
|
|
err2 |= __put_user (s.shm_atime, &up->shm_atime);
|
| 752 |
|
|
err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
|
| 753 |
|
|
err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
|
| 754 |
|
|
err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
|
| 755 |
|
|
err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
|
| 756 |
|
|
err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
|
| 757 |
|
|
err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
|
| 758 |
|
|
if (err2)
|
| 759 |
|
|
err = -EFAULT;
|
| 760 |
|
|
}
|
| 761 |
|
|
}
|
| 762 |
|
|
out:
|
| 763 |
|
|
return err;
|
| 764 |
|
|
}
|
| 765 |
|
|
|
| 766 |
|
|
static __inline__ void *alloc_user_space(long len)
|
| 767 |
|
|
{
|
| 768 |
|
|
struct pt_regs *regs = current->thread.kregs;
|
| 769 |
|
|
unsigned long usp = regs->u_regs[UREG_I6];
|
| 770 |
|
|
|
| 771 |
|
|
if (!(current->thread.flags & SPARC_FLAG_32BIT))
|
| 772 |
|
|
usp += STACK_BIAS;
|
| 773 |
|
|
|
| 774 |
|
|
return (void *) (usp - len);
|
| 775 |
|
|
}
|
| 776 |
|
|
|
| 777 |
|
|
struct timespec32 {
|
| 778 |
|
|
s32 tv_sec;
|
| 779 |
|
|
s32 tv_nsec;
|
| 780 |
|
|
};
|
| 781 |
|
|
|
| 782 |
|
|
static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
|
| 783 |
|
|
const struct timespec32 *timeout32)
|
| 784 |
|
|
{
|
| 785 |
|
|
struct timespec32 t32;
|
| 786 |
|
|
struct timespec *t64 = alloc_user_space(sizeof(*t64));
|
| 787 |
|
|
|
| 788 |
|
|
if (copy_from_user(&t32, timeout32, sizeof(t32)))
|
| 789 |
|
|
return -EFAULT;
|
| 790 |
|
|
|
| 791 |
|
|
if (put_user(t32.tv_sec, &t64->tv_sec) ||
|
| 792 |
|
|
put_user(t32.tv_nsec, &t64->tv_nsec))
|
| 793 |
|
|
return -EFAULT;
|
| 794 |
|
|
|
| 795 |
|
|
return sys_semtimedop(semid, tsems, nsems, t64);
|
| 796 |
|
|
}
|
| 797 |
|
|
|
| 798 |
|
|
asmlinkage int sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
|
| 799 |
|
|
{
|
| 800 |
|
|
int version, err;
|
| 801 |
|
|
|
| 802 |
|
|
version = call >> 16; /* hack for backward compatibility */
|
| 803 |
|
|
call &= 0xffff;
|
| 804 |
|
|
|
| 805 |
|
|
if (call <= SEMCTL)
|
| 806 |
|
|
switch (call) {
|
| 807 |
|
|
case SEMOP:
|
| 808 |
|
|
/* struct sembuf is the same on 32 and 64bit :)) */
|
| 809 |
|
|
err = sys_semtimedop (first, (struct sembuf *)AA(ptr), second, NULL);
|
| 810 |
|
|
goto out;
|
| 811 |
|
|
case SEMTIMEDOP:
|
| 812 |
|
|
err = sys32_semtimedop (first, (struct sembuf *)AA(ptr), second, (const struct timespec32 *) AA(fifth));
|
| 813 |
|
|
case SEMGET:
|
| 814 |
|
|
err = sys_semget (first, second, third);
|
| 815 |
|
|
goto out;
|
| 816 |
|
|
case SEMCTL:
|
| 817 |
|
|
err = do_sys32_semctl (first, second, third, (void *)AA(ptr));
|
| 818 |
|
|
goto out;
|
| 819 |
|
|
default:
|
| 820 |
|
|
err = -ENOSYS;
|
| 821 |
|
|
goto out;
|
| 822 |
|
|
};
|
| 823 |
|
|
if (call <= MSGCTL)
|
| 824 |
|
|
switch (call) {
|
| 825 |
|
|
case MSGSND:
|
| 826 |
|
|
err = do_sys32_msgsnd (first, second, third, (void *)AA(ptr));
|
| 827 |
|
|
goto out;
|
| 828 |
|
|
case MSGRCV:
|
| 829 |
|
|
err = do_sys32_msgrcv (first, second, fifth, third,
|
| 830 |
|
|
version, (void *)AA(ptr));
|
| 831 |
|
|
goto out;
|
| 832 |
|
|
case MSGGET:
|
| 833 |
|
|
err = sys_msgget ((key_t) first, second);
|
| 834 |
|
|
goto out;
|
| 835 |
|
|
case MSGCTL:
|
| 836 |
|
|
err = do_sys32_msgctl (first, second, (void *)AA(ptr));
|
| 837 |
|
|
goto out;
|
| 838 |
|
|
default:
|
| 839 |
|
|
err = -ENOSYS;
|
| 840 |
|
|
goto out;
|
| 841 |
|
|
}
|
| 842 |
|
|
if (call <= SHMCTL)
|
| 843 |
|
|
switch (call) {
|
| 844 |
|
|
case SHMAT:
|
| 845 |
|
|
err = do_sys32_shmat (first, second, third,
|
| 846 |
|
|
version, (void *)AA(ptr));
|
| 847 |
|
|
goto out;
|
| 848 |
|
|
case SHMDT:
|
| 849 |
|
|
err = sys_shmdt ((char *)AA(ptr));
|
| 850 |
|
|
goto out;
|
| 851 |
|
|
case SHMGET:
|
| 852 |
|
|
err = sys_shmget (first, second, third);
|
| 853 |
|
|
goto out;
|
| 854 |
|
|
case SHMCTL:
|
| 855 |
|
|
err = do_sys32_shmctl (first, second, (void *)AA(ptr));
|
| 856 |
|
|
goto out;
|
| 857 |
|
|
default:
|
| 858 |
|
|
err = -ENOSYS;
|
| 859 |
|
|
goto out;
|
| 860 |
|
|
}
|
| 861 |
|
|
|
| 862 |
|
|
err = -ENOSYS;
|
| 863 |
|
|
|
| 864 |
|
|
out:
|
| 865 |
|
|
return err;
|
| 866 |
|
|
}
|
| 867 |
|
|
|
| 868 |
|
|
static inline int get_flock(struct flock *kfl, struct flock32 *ufl)
|
| 869 |
|
|
{
|
| 870 |
|
|
int err;
|
| 871 |
|
|
|
| 872 |
|
|
err = get_user(kfl->l_type, &ufl->l_type);
|
| 873 |
|
|
err |= __get_user(kfl->l_whence, &ufl->l_whence);
|
| 874 |
|
|
err |= __get_user(kfl->l_start, &ufl->l_start);
|
| 875 |
|
|
err |= __get_user(kfl->l_len, &ufl->l_len);
|
| 876 |
|
|
err |= __get_user(kfl->l_pid, &ufl->l_pid);
|
| 877 |
|
|
return err;
|
| 878 |
|
|
}
|
| 879 |
|
|
|
| 880 |
|
|
static inline int put_flock(struct flock *kfl, struct flock32 *ufl)
|
| 881 |
|
|
{
|
| 882 |
|
|
int err;
|
| 883 |
|
|
|
| 884 |
|
|
err = __put_user(kfl->l_type, &ufl->l_type);
|
| 885 |
|
|
err |= __put_user(kfl->l_whence, &ufl->l_whence);
|
| 886 |
|
|
err |= __put_user(kfl->l_start, &ufl->l_start);
|
| 887 |
|
|
err |= __put_user(kfl->l_len, &ufl->l_len);
|
| 888 |
|
|
err |= __put_user(kfl->l_pid, &ufl->l_pid);
|
| 889 |
|
|
return err;
|
| 890 |
|
|
}
|
| 891 |
|
|
|
| 892 |
|
|
extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
|
| 893 |
|
|
|
| 894 |
|
|
asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
|
| 895 |
|
|
{
|
| 896 |
|
|
switch (cmd) {
|
| 897 |
|
|
case F_GETLK:
|
| 898 |
|
|
case F_SETLK:
|
| 899 |
|
|
case F_SETLKW:
|
| 900 |
|
|
{
|
| 901 |
|
|
struct flock f;
|
| 902 |
|
|
mm_segment_t old_fs;
|
| 903 |
|
|
long ret;
|
| 904 |
|
|
|
| 905 |
|
|
if (get_flock(&f, (struct flock32 *)arg))
|
| 906 |
|
|
return -EFAULT;
|
| 907 |
|
|
old_fs = get_fs(); set_fs (KERNEL_DS);
|
| 908 |
|
|
ret = sys_fcntl(fd, cmd, (unsigned long)&f);
|
| 909 |
|
|
set_fs (old_fs);
|
| 910 |
|
|
if (ret) return ret;
|
| 911 |
|
|
if (put_flock(&f, (struct flock32 *)arg))
|
| 912 |
|
|
return -EFAULT;
|
| 913 |
|
|
return 0;
|
| 914 |
|
|
}
|
| 915 |
|
|
default:
|
| 916 |
|
|
return sys_fcntl(fd, cmd, (unsigned long)arg);
|
| 917 |
|
|
}
|
| 918 |
|
|
}
|
| 919 |
|
|
|
| 920 |
|
|
asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
|
| 921 |
|
|
{
|
| 922 |
|
|
if (cmd >= F_GETLK64 && cmd <= F_SETLKW64)
|
| 923 |
|
|
return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg);
|
| 924 |
|
|
return sys32_fcntl(fd, cmd, arg);
|
| 925 |
|
|
}
|
| 926 |
|
|
|
| 927 |
|
|
struct user_dqblk32 {
|
| 928 |
|
|
__u32 dqb_bhardlimit;
|
| 929 |
|
|
__u32 dqb_bsoftlimit;
|
| 930 |
|
|
__u32 dqb_curblocks;
|
| 931 |
|
|
__u32 dqb_ihardlimit;
|
| 932 |
|
|
__u32 dqb_isoftlimit;
|
| 933 |
|
|
__u32 dqb_curinodes;
|
| 934 |
|
|
__kernel_time_t32 dqb_btime;
|
| 935 |
|
|
__kernel_time_t32 dqb_itime;
|
| 936 |
|
|
};
|
| 937 |
|
|
|
| 938 |
|
|
extern asmlinkage int sys_quotactl(int cmd, const char *special, int id, caddr_t addr);
|
| 939 |
|
|
|
| 940 |
|
|
asmlinkage int sys32_quotactl(int cmd, const char *special, int id, caddr_t addr)
|
| 941 |
|
|
{
|
| 942 |
|
|
int cmds = cmd >> SUBCMDSHIFT;
|
| 943 |
|
|
int err;
|
| 944 |
|
|
struct v1c_mem_dqblk d;
|
| 945 |
|
|
mm_segment_t old_fs;
|
| 946 |
|
|
char *spec;
|
| 947 |
|
|
|
| 948 |
|
|
switch (cmds) {
|
| 949 |
|
|
case Q_V1_GETQUOTA:
|
| 950 |
|
|
break;
|
| 951 |
|
|
case Q_V1_SETQUOTA:
|
| 952 |
|
|
case Q_V1_SETUSE:
|
| 953 |
|
|
case Q_V1_SETQLIM:
|
| 954 |
|
|
if (copy_from_user(&d, addr, sizeof(struct user_dqblk32)))
|
| 955 |
|
|
return -EFAULT;
|
| 956 |
|
|
d.dqb_itime = ((struct user_dqblk32 *)&d)->dqb_itime;
|
| 957 |
|
|
d.dqb_btime = ((struct user_dqblk32 *)&d)->dqb_btime;
|
| 958 |
|
|
break;
|
| 959 |
|
|
default:
|
| 960 |
|
|
return sys_quotactl(cmd, special, id, addr);
|
| 961 |
|
|
}
|
| 962 |
|
|
spec = getname(special);
|
| 963 |
|
|
err = PTR_ERR(spec);
|
| 964 |
|
|
if (IS_ERR(spec))
|
| 965 |
|
|
return err;
|
| 966 |
|
|
old_fs = get_fs();
|
| 967 |
|
|
set_fs (KERNEL_DS);
|
| 968 |
|
|
err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d);
|
| 969 |
|
|
set_fs (old_fs);
|
| 970 |
|
|
putname (spec);
|
| 971 |
|
|
if (cmds == Q_V1_GETQUOTA) {
|
| 972 |
|
|
__kernel_time_t b = d.dqb_btime, i = d.dqb_itime;
|
| 973 |
|
|
((struct user_dqblk32 *)&d)->dqb_itime = i;
|
| 974 |
|
|
((struct user_dqblk32 *)&d)->dqb_btime = b;
|
| 975 |
|
|
if (copy_to_user(addr, &d, sizeof(struct user_dqblk32)))
|
| 976 |
|
|
return -EFAULT;
|
| 977 |
|
|
}
|
| 978 |
|
|
return err;
|
| 979 |
|
|
}
|
| 980 |
|
|
|
| 981 |
|
|
static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf)
|
| 982 |
|
|
{
|
| 983 |
|
|
int err;
|
| 984 |
|
|
|
| 985 |
|
|
err = put_user (kbuf->f_type, &ubuf->f_type);
|
| 986 |
|
|
err |= __put_user (kbuf->f_bsize, &ubuf->f_bsize);
|
| 987 |
|
|
err |= __put_user (kbuf->f_blocks, &ubuf->f_blocks);
|
| 988 |
|
|
err |= __put_user (kbuf->f_bfree, &ubuf->f_bfree);
|
| 989 |
|
|
err |= __put_user (kbuf->f_bavail, &ubuf->f_bavail);
|
| 990 |
|
|
err |= __put_user (kbuf->f_files, &ubuf->f_files);
|
| 991 |
|
|
err |= __put_user (kbuf->f_ffree, &ubuf->f_ffree);
|
| 992 |
|
|
err |= __put_user (kbuf->f_namelen, &ubuf->f_namelen);
|
| 993 |
|
|
err |= __put_user (kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]);
|
| 994 |
|
|
err |= __put_user (kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]);
|
| 995 |
|
|
return err;
|
| 996 |
|
|
}
|
| 997 |
|
|
|
| 998 |
|
|
extern asmlinkage int sys_statfs(const char * path, struct statfs * buf);
|
| 999 |
|
|
|
| 1000 |
|
|
asmlinkage int sys32_statfs(const char * path, struct statfs32 *buf)
|
| 1001 |
|
|
{
|
| 1002 |
|
|
int ret;
|
| 1003 |
|
|
struct statfs s;
|
| 1004 |
|
|
mm_segment_t old_fs = get_fs();
|
| 1005 |
|
|
char *pth;
|
| 1006 |
|
|
|
| 1007 |
|
|
pth = getname (path);
|
| 1008 |
|
|
ret = PTR_ERR(pth);
|
| 1009 |
|
|
if (!IS_ERR(pth)) {
|
| 1010 |
|
|
set_fs (KERNEL_DS);
|
| 1011 |
|
|
ret = sys_statfs((const char *)pth, &s);
|
| 1012 |
|
|
set_fs (old_fs);
|
| 1013 |
|
|
putname (pth);
|
| 1014 |
|
|
if (put_statfs(buf, &s))
|
| 1015 |
|
|
return -EFAULT;
|
| 1016 |
|
|
}
|
| 1017 |
|
|
return ret;
|
| 1018 |
|
|
}
|
| 1019 |
|
|
|
| 1020 |
|
|
extern asmlinkage int sys_fstatfs(unsigned int fd, struct statfs * buf);
|
| 1021 |
|
|
|
| 1022 |
|
|
asmlinkage int sys32_fstatfs(unsigned int fd, struct statfs32 *buf)
|
| 1023 |
|
|
{
|
| 1024 |
|
|
int ret;
|
| 1025 |
|
|
struct statfs s;
|
| 1026 |
|
|
mm_segment_t old_fs = get_fs();
|
| 1027 |
|
|
|
| 1028 |
|
|
set_fs (KERNEL_DS);
|
| 1029 |
|
|
ret = sys_fstatfs(fd, &s);
|
| 1030 |
|
|
set_fs (old_fs);
|
| 1031 |
|
|
if (put_statfs(buf, &s))
|
| 1032 |
|
|
return -EFAULT;
|
| 1033 |
|
|
return ret;
|
| 1034 |
|
|
}
|
| 1035 |
|
|
|
| 1036 |
|
|
extern asmlinkage long sys_truncate(const char * path, unsigned long length);
|
| 1037 |
|
|
extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
|
| 1038 |
|
|
|
| 1039 |
|
|
asmlinkage int sys32_truncate64(const char * path, unsigned long high, unsigned long low)
|
| 1040 |
|
|
{
|
| 1041 |
|
|
if ((int)high < 0)
|
| 1042 |
|
|
return -EINVAL;
|
| 1043 |
|
|
else
|
| 1044 |
|
|
return sys_truncate(path, (high << 32) | low);
|
| 1045 |
|
|
}
|
| 1046 |
|
|
|
| 1047 |
|
|
asmlinkage int sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
|
| 1048 |
|
|
{
|
| 1049 |
|
|
if ((int)high < 0)
|
| 1050 |
|
|
return -EINVAL;
|
| 1051 |
|
|
else
|
| 1052 |
|
|
return sys_ftruncate(fd, (high << 32) | low);
|
| 1053 |
|
|
}
|
| 1054 |
|
|
|
| 1055 |
|
|
extern asmlinkage int sys_utime(char * filename, struct utimbuf * times);
|
| 1056 |
|
|
|
| 1057 |
|
|
struct utimbuf32 {
|
| 1058 |
|
|
__kernel_time_t32 actime, modtime;
|
| 1059 |
|
|
};
|
| 1060 |
|
|
|
| 1061 |
|
|
asmlinkage int sys32_utime(char * filename, struct utimbuf32 *times)
|
| 1062 |
|
|
{
|
| 1063 |
|
|
struct utimbuf t;
|
| 1064 |
|
|
mm_segment_t old_fs;
|
| 1065 |
|
|
int ret;
|
| 1066 |
|
|
char *filenam;
|
| 1067 |
|
|
|
| 1068 |
|
|
if (!times)
|
| 1069 |
|
|
return sys_utime(filename, NULL);
|
| 1070 |
|
|
if (get_user (t.actime, ×->actime) ||
|
| 1071 |
|
|
__get_user (t.modtime, ×->modtime))
|
| 1072 |
|
|
return -EFAULT;
|
| 1073 |
|
|
filenam = getname (filename);
|
| 1074 |
|
|
ret = PTR_ERR(filenam);
|
| 1075 |
|
|
if (!IS_ERR(filenam)) {
|
| 1076 |
|
|
old_fs = get_fs();
|
| 1077 |
|
|
set_fs (KERNEL_DS);
|
| 1078 |
|
|
ret = sys_utime(filenam, &t);
|
| 1079 |
|
|
set_fs (old_fs);
|
| 1080 |
|
|
putname (filenam);
|
| 1081 |
|
|
}
|
| 1082 |
|
|
return ret;
|
| 1083 |
|
|
}
|
| 1084 |
|
|
|
| 1085 |
|
|
struct iovec32 { u32 iov_base; __kernel_size_t32 iov_len; };
|
| 1086 |
|
|
|
| 1087 |
|
|
typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
|
| 1088 |
|
|
typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
|
| 1089 |
|
|
|
| 1090 |
|
|
static long do_readv_writev32(int type, struct file *file,
|
| 1091 |
|
|
const struct iovec32 *vector, u32 count)
|
| 1092 |
|
|
{
|
| 1093 |
|
|
__kernel_ssize_t32 tot_len;
|
| 1094 |
|
|
struct iovec iovstack[UIO_FASTIOV];
|
| 1095 |
|
|
struct iovec *iov=iovstack, *ivp;
|
| 1096 |
|
|
struct inode *inode;
|
| 1097 |
|
|
long retval, i;
|
| 1098 |
|
|
io_fn_t fn;
|
| 1099 |
|
|
iov_fn_t fnv;
|
| 1100 |
|
|
|
| 1101 |
|
|
/* First get the "struct iovec" from user memory and
|
| 1102 |
|
|
* verify all the pointers
|
| 1103 |
|
|
*/
|
| 1104 |
|
|
retval = 0;
|
| 1105 |
|
|
if (!count)
|
| 1106 |
|
|
goto out_nofree;
|
| 1107 |
|
|
retval = -EFAULT;
|
| 1108 |
|
|
if (verify_area(VERIFY_READ, vector, sizeof(struct iovec32)*count))
|
| 1109 |
|
|
goto out_nofree;
|
| 1110 |
|
|
retval = -EINVAL;
|
| 1111 |
|
|
if (count > UIO_MAXIOV)
|
| 1112 |
|
|
goto out_nofree;
|
| 1113 |
|
|
if (count > UIO_FASTIOV) {
|
| 1114 |
|
|
retval = -ENOMEM;
|
| 1115 |
|
|
iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
|
| 1116 |
|
|
if (!iov)
|
| 1117 |
|
|
goto out_nofree;
|
| 1118 |
|
|
}
|
| 1119 |
|
|
|
| 1120 |
|
|
tot_len = 0;
|
| 1121 |
|
|
i = count;
|
| 1122 |
|
|
ivp = iov;
|
| 1123 |
|
|
retval = -EINVAL;
|
| 1124 |
|
|
while(i > 0) {
|
| 1125 |
|
|
__kernel_ssize_t32 tmp = tot_len;
|
| 1126 |
|
|
__kernel_ssize_t32 len;
|
| 1127 |
|
|
u32 buf;
|
| 1128 |
|
|
|
| 1129 |
|
|
__get_user(len, &vector->iov_len);
|
| 1130 |
|
|
__get_user(buf, &vector->iov_base);
|
| 1131 |
|
|
if (len < 0) /* size_t not fittina an ssize_t32 .. */
|
| 1132 |
|
|
goto out;
|
| 1133 |
|
|
tot_len += len;
|
| 1134 |
|
|
if (tot_len < tmp) /* maths overflow on the ssize_t32 */
|
| 1135 |
|
|
goto out;
|
| 1136 |
|
|
ivp->iov_base = (void *)A(buf);
|
| 1137 |
|
|
ivp->iov_len = (__kernel_size_t) len;
|
| 1138 |
|
|
vector++;
|
| 1139 |
|
|
ivp++;
|
| 1140 |
|
|
i--;
|
| 1141 |
|
|
}
|
| 1142 |
|
|
|
| 1143 |
|
|
inode = file->f_dentry->d_inode;
|
| 1144 |
|
|
/* VERIFY_WRITE actually means a read, as we write to user space */
|
| 1145 |
|
|
retval = locks_verify_area((type == VERIFY_WRITE
|
| 1146 |
|
|
? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
|
| 1147 |
|
|
inode, file, file->f_pos, tot_len);
|
| 1148 |
|
|
if (retval)
|
| 1149 |
|
|
goto out;
|
| 1150 |
|
|
|
| 1151 |
|
|
/* VERIFY_WRITE actually means a read, as we write to user space */
|
| 1152 |
|
|
fnv = (type == VERIFY_WRITE ? file->f_op->readv : file->f_op->writev);
|
| 1153 |
|
|
if (fnv) {
|
| 1154 |
|
|
retval = fnv(file, iov, count, &file->f_pos);
|
| 1155 |
|
|
goto out;
|
| 1156 |
|
|
}
|
| 1157 |
|
|
|
| 1158 |
|
|
fn = (type == VERIFY_WRITE ? file->f_op->read :
|
| 1159 |
|
|
(io_fn_t) file->f_op->write);
|
| 1160 |
|
|
|
| 1161 |
|
|
ivp = iov;
|
| 1162 |
|
|
while (count > 0) {
|
| 1163 |
|
|
void * base;
|
| 1164 |
|
|
int len, nr;
|
| 1165 |
|
|
|
| 1166 |
|
|
base = ivp->iov_base;
|
| 1167 |
|
|
len = ivp->iov_len;
|
| 1168 |
|
|
ivp++;
|
| 1169 |
|
|
count--;
|
| 1170 |
|
|
nr = fn(file, base, len, &file->f_pos);
|
| 1171 |
|
|
if (nr < 0) {
|
| 1172 |
|
|
if (!retval)
|
| 1173 |
|
|
retval = nr;
|
| 1174 |
|
|
break;
|
| 1175 |
|
|
}
|
| 1176 |
|
|
retval += nr;
|
| 1177 |
|
|
if (nr != len)
|
| 1178 |
|
|
break;
|
| 1179 |
|
|
}
|
| 1180 |
|
|
out:
|
| 1181 |
|
|
if (iov != iovstack)
|
| 1182 |
|
|
kfree(iov);
|
| 1183 |
|
|
out_nofree:
|
| 1184 |
|
|
/* VERIFY_WRITE actually means a read, as we write to user space */
|
| 1185 |
|
|
if ((retval + (type == VERIFY_WRITE)) > 0)
|
| 1186 |
|
|
dnotify_parent(file->f_dentry,
|
| 1187 |
|
|
(type == VERIFY_WRITE) ? DN_ACCESS : DN_MODIFY);
|
| 1188 |
|
|
|
| 1189 |
|
|
return retval;
|
| 1190 |
|
|
}
|
| 1191 |
|
|
|
| 1192 |
|
|
asmlinkage long sys32_readv(int fd, struct iovec32 *vector, u32 count)
|
| 1193 |
|
|
{
|
| 1194 |
|
|
struct file *file;
|
| 1195 |
|
|
long ret = -EBADF;
|
| 1196 |
|
|
|
| 1197 |
|
|
file = fget(fd);
|
| 1198 |
|
|
if(!file)
|
| 1199 |
|
|
goto bad_file;
|
| 1200 |
|
|
|
| 1201 |
|
|
if (file->f_op && (file->f_mode & FMODE_READ) &&
|
| 1202 |
|
|
(file->f_op->readv || file->f_op->read))
|
| 1203 |
|
|
ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
|
| 1204 |
|
|
fput(file);
|
| 1205 |
|
|
|
| 1206 |
|
|
bad_file:
|
| 1207 |
|
|
return ret;
|
| 1208 |
|
|
}
|
| 1209 |
|
|
|
| 1210 |
|
|
asmlinkage long sys32_writev(int fd, struct iovec32 *vector, u32 count)
|
| 1211 |
|
|
{
|
| 1212 |
|
|
struct file *file;
|
| 1213 |
|
|
int ret = -EBADF;
|
| 1214 |
|
|
|
| 1215 |
|
|
file = fget(fd);
|
| 1216 |
|
|
if(!file)
|
| 1217 |
|
|
goto bad_file;
|
| 1218 |
|
|
if (file->f_op && (file->f_mode & FMODE_WRITE) &&
|
| 1219 |
|
|
(file->f_op->writev || file->f_op->write))
|
| 1220 |
|
|
ret = do_readv_writev32(VERIFY_READ, file, vector, count);
|
| 1221 |
|
|
fput(file);
|
| 1222 |
|
|
|
| 1223 |
|
|
bad_file:
|
| 1224 |
|
|
return ret;
|
| 1225 |
|
|
}
|
| 1226 |
|
|
|
| 1227 |
|
|
/* readdir & getdents */
|
| 1228 |
|
|
|
| 1229 |
|
|
#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
|
| 1230 |
|
|
#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
|
| 1231 |
|
|
|
| 1232 |
|
|
struct old_linux_dirent32 {
|
| 1233 |
|
|
u32 d_ino;
|
| 1234 |
|
|
u32 d_offset;
|
| 1235 |
|
|
unsigned short d_namlen;
|
| 1236 |
|
|
char d_name[1];
|
| 1237 |
|
|
};
|
| 1238 |
|
|
|
| 1239 |
|
|
struct readdir_callback32 {
|
| 1240 |
|
|
struct old_linux_dirent32 * dirent;
|
| 1241 |
|
|
int count;
|
| 1242 |
|
|
};
|
| 1243 |
|
|
|
| 1244 |
|
|
static int fillonedir(void * __buf, const char * name, int namlen,
|
| 1245 |
|
|
loff_t offset, ino_t ino, unsigned int d_type)
|
| 1246 |
|
|
{
|
| 1247 |
|
|
struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
|
| 1248 |
|
|
struct old_linux_dirent32 * dirent;
|
| 1249 |
|
|
|
| 1250 |
|
|
if (buf->count)
|
| 1251 |
|
|
return -EINVAL;
|
| 1252 |
|
|
buf->count++;
|
| 1253 |
|
|
dirent = buf->dirent;
|
| 1254 |
|
|
put_user(ino, &dirent->d_ino);
|
| 1255 |
|
|
put_user(offset, &dirent->d_offset);
|
| 1256 |
|
|
put_user(namlen, &dirent->d_namlen);
|
| 1257 |
|
|
copy_to_user(dirent->d_name, name, namlen);
|
| 1258 |
|
|
put_user(0, dirent->d_name + namlen);
|
| 1259 |
|
|
return 0;
|
| 1260 |
|
|
}
|
| 1261 |
|
|
|
| 1262 |
|
|
asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
|
| 1263 |
|
|
{
|
| 1264 |
|
|
int error = -EBADF;
|
| 1265 |
|
|
struct file * file;
|
| 1266 |
|
|
struct readdir_callback32 buf;
|
| 1267 |
|
|
|
| 1268 |
|
|
file = fget(fd);
|
| 1269 |
|
|
if (!file)
|
| 1270 |
|
|
goto out;
|
| 1271 |
|
|
|
| 1272 |
|
|
buf.count = 0;
|
| 1273 |
|
|
buf.dirent = dirent;
|
| 1274 |
|
|
|
| 1275 |
|
|
error = vfs_readdir(file, fillonedir, &buf);
|
| 1276 |
|
|
if (error < 0)
|
| 1277 |
|
|
goto out_putf;
|
| 1278 |
|
|
error = buf.count;
|
| 1279 |
|
|
|
| 1280 |
|
|
out_putf:
|
| 1281 |
|
|
fput(file);
|
| 1282 |
|
|
out:
|
| 1283 |
|
|
return error;
|
| 1284 |
|
|
}
|
| 1285 |
|
|
|
| 1286 |
|
|
struct linux_dirent32 {
|
| 1287 |
|
|
u32 d_ino;
|
| 1288 |
|
|
u32 d_off;
|
| 1289 |
|
|
unsigned short d_reclen;
|
| 1290 |
|
|
char d_name[1];
|
| 1291 |
|
|
};
|
| 1292 |
|
|
|
| 1293 |
|
|
struct getdents_callback32 {
|
| 1294 |
|
|
struct linux_dirent32 * current_dir;
|
| 1295 |
|
|
struct linux_dirent32 * previous;
|
| 1296 |
|
|
int count;
|
| 1297 |
|
|
int error;
|
| 1298 |
|
|
};
|
| 1299 |
|
|
|
| 1300 |
|
|
static int filldir(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
|
| 1301 |
|
|
unsigned int d_type)
|
| 1302 |
|
|
{
|
| 1303 |
|
|
struct linux_dirent32 * dirent;
|
| 1304 |
|
|
struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
|
| 1305 |
|
|
int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
|
| 1306 |
|
|
|
| 1307 |
|
|
buf->error = -EINVAL; /* only used if we fail.. */
|
| 1308 |
|
|
if (reclen > buf->count)
|
| 1309 |
|
|
return -EINVAL;
|
| 1310 |
|
|
dirent = buf->previous;
|
| 1311 |
|
|
if (dirent)
|
| 1312 |
|
|
put_user(offset, &dirent->d_off);
|
| 1313 |
|
|
dirent = buf->current_dir;
|
| 1314 |
|
|
buf->previous = dirent;
|
| 1315 |
|
|
put_user(ino, &dirent->d_ino);
|
| 1316 |
|
|
put_user(reclen, &dirent->d_reclen);
|
| 1317 |
|
|
copy_to_user(dirent->d_name, name, namlen);
|
| 1318 |
|
|
put_user(0, dirent->d_name + namlen);
|
| 1319 |
|
|
((char *) dirent) += reclen;
|
| 1320 |
|
|
buf->current_dir = dirent;
|
| 1321 |
|
|
buf->count -= reclen;
|
| 1322 |
|
|
return 0;
|
| 1323 |
|
|
}
|
| 1324 |
|
|
|
| 1325 |
|
|
asmlinkage int sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count)
|
| 1326 |
|
|
{
|
| 1327 |
|
|
struct file * file;
|
| 1328 |
|
|
struct linux_dirent32 * lastdirent;
|
| 1329 |
|
|
struct getdents_callback32 buf;
|
| 1330 |
|
|
int error = -EBADF;
|
| 1331 |
|
|
|
| 1332 |
|
|
file = fget(fd);
|
| 1333 |
|
|
if (!file)
|
| 1334 |
|
|
goto out;
|
| 1335 |
|
|
|
| 1336 |
|
|
buf.current_dir = dirent;
|
| 1337 |
|
|
buf.previous = NULL;
|
| 1338 |
|
|
buf.count = count;
|
| 1339 |
|
|
buf.error = 0;
|
| 1340 |
|
|
|
| 1341 |
|
|
error = vfs_readdir(file, filldir, &buf);
|
| 1342 |
|
|
if (error < 0)
|
| 1343 |
|
|
goto out_putf;
|
| 1344 |
|
|
lastdirent = buf.previous;
|
| 1345 |
|
|
error = buf.error;
|
| 1346 |
|
|
if(lastdirent) {
|
| 1347 |
|
|
put_user(file->f_pos, &lastdirent->d_off);
|
| 1348 |
|
|
error = count - buf.count;
|
| 1349 |
|
|
}
|
| 1350 |
|
|
out_putf:
|
| 1351 |
|
|
fput(file);
|
| 1352 |
|
|
out:
|
| 1353 |
|
|
return error;
|
| 1354 |
|
|
}
|
| 1355 |
|
|
|
| 1356 |
|
|
/* end of readdir & getdents */
|
| 1357 |
|
|
|
| 1358 |
|
|
/*
|
| 1359 |
|
|
* Ooo, nasty. We need here to frob 32-bit unsigned longs to
|
| 1360 |
|
|
* 64-bit unsigned longs.
|
| 1361 |
|
|
*/
|
| 1362 |
|
|
|
| 1363 |
|
|
static inline int
|
| 1364 |
|
|
get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
|
| 1365 |
|
|
{
|
| 1366 |
|
|
if (ufdset) {
|
| 1367 |
|
|
unsigned long odd;
|
| 1368 |
|
|
|
| 1369 |
|
|
if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
|
| 1370 |
|
|
return -EFAULT;
|
| 1371 |
|
|
|
| 1372 |
|
|
odd = n & 1UL;
|
| 1373 |
|
|
n &= ~1UL;
|
| 1374 |
|
|
while (n) {
|
| 1375 |
|
|
unsigned long h, l;
|
| 1376 |
|
|
__get_user(l, ufdset);
|
| 1377 |
|
|
__get_user(h, ufdset+1);
|
| 1378 |
|
|
ufdset += 2;
|
| 1379 |
|
|
*fdset++ = h << 32 | l;
|
| 1380 |
|
|
n -= 2;
|
| 1381 |
|
|
}
|
| 1382 |
|
|
if (odd)
|
| 1383 |
|
|
__get_user(*fdset, ufdset);
|
| 1384 |
|
|
} else {
|
| 1385 |
|
|
/* Tricky, must clear full unsigned long in the
|
| 1386 |
|
|
* kernel fdset at the end, this makes sure that
|
| 1387 |
|
|
* actually happens.
|
| 1388 |
|
|
*/
|
| 1389 |
|
|
memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
|
| 1390 |
|
|
}
|
| 1391 |
|
|
return 0;
|
| 1392 |
|
|
}
|
| 1393 |
|
|
|
| 1394 |
|
|
static inline void
|
| 1395 |
|
|
set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
|
| 1396 |
|
|
{
|
| 1397 |
|
|
unsigned long odd;
|
| 1398 |
|
|
|
| 1399 |
|
|
if (!ufdset)
|
| 1400 |
|
|
return;
|
| 1401 |
|
|
|
| 1402 |
|
|
odd = n & 1UL;
|
| 1403 |
|
|
n &= ~1UL;
|
| 1404 |
|
|
while (n) {
|
| 1405 |
|
|
unsigned long h, l;
|
| 1406 |
|
|
l = *fdset++;
|
| 1407 |
|
|
h = l >> 32;
|
| 1408 |
|
|
__put_user(l, ufdset);
|
| 1409 |
|
|
__put_user(h, ufdset+1);
|
| 1410 |
|
|
ufdset += 2;
|
| 1411 |
|
|
n -= 2;
|
| 1412 |
|
|
}
|
| 1413 |
|
|
if (odd)
|
| 1414 |
|
|
__put_user(*fdset, ufdset);
|
| 1415 |
|
|
}
|
| 1416 |
|
|
|
| 1417 |
|
|
#define MAX_SELECT_SECONDS \
|
| 1418 |
|
|
((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
|
| 1419 |
|
|
|
| 1420 |
|
|
asmlinkage int sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
|
| 1421 |
|
|
{
|
| 1422 |
|
|
fd_set_bits fds;
|
| 1423 |
|
|
struct timeval32 *tvp = (struct timeval32 *)AA(tvp_x);
|
| 1424 |
|
|
char *bits;
|
| 1425 |
|
|
unsigned long nn;
|
| 1426 |
|
|
long timeout;
|
| 1427 |
|
|
int ret, size;
|
| 1428 |
|
|
|
| 1429 |
|
|
timeout = MAX_SCHEDULE_TIMEOUT;
|
| 1430 |
|
|
if (tvp) {
|
| 1431 |
|
|
time_t sec, usec;
|
| 1432 |
|
|
|
| 1433 |
|
|
if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
|
| 1434 |
|
|
|| (ret = __get_user(sec, &tvp->tv_sec))
|
| 1435 |
|
|
|| (ret = __get_user(usec, &tvp->tv_usec)))
|
| 1436 |
|
|
goto out_nofds;
|
| 1437 |
|
|
|
| 1438 |
|
|
ret = -EINVAL;
|
| 1439 |
|
|
if(sec < 0 || usec < 0)
|
| 1440 |
|
|
goto out_nofds;
|
| 1441 |
|
|
|
| 1442 |
|
|
if ((unsigned long) sec < MAX_SELECT_SECONDS) {
|
| 1443 |
|
|
timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
|
| 1444 |
|
|
timeout += sec * (unsigned long) HZ;
|
| 1445 |
|
|
}
|
| 1446 |
|
|
}
|
| 1447 |
|
|
|
| 1448 |
|
|
ret = -EINVAL;
|
| 1449 |
|
|
if (n < 0)
|
| 1450 |
|
|
goto out_nofds;
|
| 1451 |
|
|
if (n > current->files->max_fdset)
|
| 1452 |
|
|
n = current->files->max_fdset;
|
| 1453 |
|
|
|
| 1454 |
|
|
/*
|
| 1455 |
|
|
* We need 6 bitmaps (in/out/ex for both incoming and outgoing),
|
| 1456 |
|
|
* since we used fdset we need to allocate memory in units of
|
| 1457 |
|
|
* long-words.
|
| 1458 |
|
|
*/
|
| 1459 |
|
|
ret = -ENOMEM;
|
| 1460 |
|
|
size = FDS_BYTES(n);
|
| 1461 |
|
|
bits = kmalloc(6 * size, GFP_KERNEL);
|
| 1462 |
|
|
if (!bits)
|
| 1463 |
|
|
goto out_nofds;
|
| 1464 |
|
|
fds.in = (unsigned long *) bits;
|
| 1465 |
|
|
fds.out = (unsigned long *) (bits + size);
|
| 1466 |
|
|
fds.ex = (unsigned long *) (bits + 2*size);
|
| 1467 |
|
|
fds.res_in = (unsigned long *) (bits + 3*size);
|
| 1468 |
|
|
fds.res_out = (unsigned long *) (bits + 4*size);
|
| 1469 |
|
|
fds.res_ex = (unsigned long *) (bits + 5*size);
|
| 1470 |
|
|
|
| 1471 |
|
|
nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
|
| 1472 |
|
|
if ((ret = get_fd_set32(nn, fds.in, inp)) ||
|
| 1473 |
|
|
(ret = get_fd_set32(nn, fds.out, outp)) ||
|
| 1474 |
|
|
(ret = get_fd_set32(nn, fds.ex, exp)))
|
| 1475 |
|
|
goto out;
|
| 1476 |
|
|
zero_fd_set(n, fds.res_in);
|
| 1477 |
|
|
zero_fd_set(n, fds.res_out);
|
| 1478 |
|
|
zero_fd_set(n, fds.res_ex);
|
| 1479 |
|
|
|
| 1480 |
|
|
ret = do_select(n, &fds, &timeout);
|
| 1481 |
|
|
|
| 1482 |
|
|
if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
|
| 1483 |
|
|
time_t sec = 0, usec = 0;
|
| 1484 |
|
|
if (timeout) {
|
| 1485 |
|
|
sec = timeout / HZ;
|
| 1486 |
|
|
usec = timeout % HZ;
|
| 1487 |
|
|
usec *= (1000000/HZ);
|
| 1488 |
|
|
}
|
| 1489 |
|
|
put_user(sec, &tvp->tv_sec);
|
| 1490 |
|
|
put_user(usec, &tvp->tv_usec);
|
| 1491 |
|
|
}
|
| 1492 |
|
|
|
| 1493 |
|
|
if (ret < 0)
|
| 1494 |
|
|
goto out;
|
| 1495 |
|
|
if (!ret) {
|
| 1496 |
|
|
ret = -ERESTARTNOHAND;
|
| 1497 |
|
|
if (signal_pending(current))
|
| 1498 |
|
|
goto out;
|
| 1499 |
|
|
ret = 0;
|
| 1500 |
|
|
}
|
| 1501 |
|
|
|
| 1502 |
|
|
set_fd_set32(nn, inp, fds.res_in);
|
| 1503 |
|
|
set_fd_set32(nn, outp, fds.res_out);
|
| 1504 |
|
|
set_fd_set32(nn, exp, fds.res_ex);
|
| 1505 |
|
|
|
| 1506 |
|
|
out:
|
| 1507 |
|
|
kfree(bits);
|
| 1508 |
|
|
out_nofds:
|
| 1509 |
|
|
return ret;
|
| 1510 |
|
|
}
|
| 1511 |
|
|
|
| 1512 |
|
|
static int cp_new_stat32(struct inode *inode, struct stat32 *statbuf)
|
| 1513 |
|
|
{
|
| 1514 |
|
|
unsigned long ino, blksize, blocks;
|
| 1515 |
|
|
kdev_t dev, rdev;
|
| 1516 |
|
|
umode_t mode;
|
| 1517 |
|
|
nlink_t nlink;
|
| 1518 |
|
|
uid_t uid;
|
| 1519 |
|
|
gid_t gid;
|
| 1520 |
|
|
off_t size;
|
| 1521 |
|
|
time_t atime, mtime, ctime;
|
| 1522 |
|
|
int err;
|
| 1523 |
|
|
|
| 1524 |
|
|
/* Stream the loads of inode data into the load buffer,
|
| 1525 |
|
|
* then we push it all into the store buffer below. This
|
| 1526 |
|
|
* should give optimal cache performance.
|
| 1527 |
|
|
*/
|
| 1528 |
|
|
ino = inode->i_ino;
|
| 1529 |
|
|
dev = inode->i_dev;
|
| 1530 |
|
|
mode = inode->i_mode;
|
| 1531 |
|
|
nlink = inode->i_nlink;
|
| 1532 |
|
|
uid = inode->i_uid;
|
| 1533 |
|
|
gid = inode->i_gid;
|
| 1534 |
|
|
rdev = inode->i_rdev;
|
| 1535 |
|
|
size = inode->i_size;
|
| 1536 |
|
|
atime = inode->i_atime;
|
| 1537 |
|
|
mtime = inode->i_mtime;
|
| 1538 |
|
|
ctime = inode->i_ctime;
|
| 1539 |
|
|
blksize = inode->i_blksize;
|
| 1540 |
|
|
blocks = inode->i_blocks;
|
| 1541 |
|
|
|
| 1542 |
|
|
err = put_user(kdev_t_to_nr(dev), &statbuf->st_dev);
|
| 1543 |
|
|
err |= put_user(ino, &statbuf->st_ino);
|
| 1544 |
|
|
err |= put_user(mode, &statbuf->st_mode);
|
| 1545 |
|
|
err |= put_user(nlink, &statbuf->st_nlink);
|
| 1546 |
|
|
err |= put_user(high2lowuid(uid), &statbuf->st_uid);
|
| 1547 |
|
|
err |= put_user(high2lowgid(gid), &statbuf->st_gid);
|
| 1548 |
|
|
err |= put_user(kdev_t_to_nr(rdev), &statbuf->st_rdev);
|
| 1549 |
|
|
err |= put_user(size, &statbuf->st_size);
|
| 1550 |
|
|
err |= put_user(atime, &statbuf->st_atime);
|
| 1551 |
|
|
err |= put_user(0, &statbuf->__unused1);
|
| 1552 |
|
|
err |= put_user(mtime, &statbuf->st_mtime);
|
| 1553 |
|
|
err |= put_user(0, &statbuf->__unused2);
|
| 1554 |
|
|
err |= put_user(ctime, &statbuf->st_ctime);
|
| 1555 |
|
|
err |= put_user(0, &statbuf->__unused3);
|
| 1556 |
|
|
if (blksize) {
|
| 1557 |
|
|
err |= put_user(blksize, &statbuf->st_blksize);
|
| 1558 |
|
|
err |= put_user(blocks, &statbuf->st_blocks);
|
| 1559 |
|
|
} else {
|
| 1560 |
|
|
unsigned int tmp_blocks;
|
| 1561 |
|
|
|
| 1562 |
|
|
#define D_B 7
|
| 1563 |
|
|
#define I_B (BLOCK_SIZE / sizeof(unsigned short))
|
| 1564 |
|
|
tmp_blocks = (size + BLOCK_SIZE - 1) / BLOCK_SIZE;
|
| 1565 |
|
|
if (tmp_blocks > D_B) {
|
| 1566 |
|
|
unsigned int indirect;
|
| 1567 |
|
|
|
| 1568 |
|
|
indirect = (tmp_blocks - D_B + I_B - 1) / I_B;
|
| 1569 |
|
|
tmp_blocks += indirect;
|
| 1570 |
|
|
if (indirect > 1) {
|
| 1571 |
|
|
indirect = (indirect - 1 + I_B - 1) / I_B;
|
| 1572 |
|
|
tmp_blocks += indirect;
|
| 1573 |
|
|
if (indirect > 1)
|
| 1574 |
|
|
tmp_blocks++;
|
| 1575 |
|
|
}
|
| 1576 |
|
|
}
|
| 1577 |
|
|
err |= put_user(BLOCK_SIZE, &statbuf->st_blksize);
|
| 1578 |
|
|
err |= put_user((BLOCK_SIZE / 512) * tmp_blocks, &statbuf->st_blocks);
|
| 1579 |
|
|
#undef D_B
|
| 1580 |
|
|
#undef I_B
|
| 1581 |
|
|
}
|
| 1582 |
|
|
err |= put_user(0, &statbuf->__unused4[0]);
|
| 1583 |
|
|
err |= put_user(0, &statbuf->__unused4[1]);
|
| 1584 |
|
|
|
| 1585 |
|
|
return err;
|
| 1586 |
|
|
}
|
| 1587 |
|
|
|
| 1588 |
|
|
/* Perhaps this belongs in fs.h or similar. -DaveM */
|
| 1589 |
|
|
static __inline__ int
|
| 1590 |
|
|
do_revalidate(struct dentry *dentry)
|
| 1591 |
|
|
{
|
| 1592 |
|
|
struct inode * inode = dentry->d_inode;
|
| 1593 |
|
|
if (inode->i_op && inode->i_op->revalidate)
|
| 1594 |
|
|
return inode->i_op->revalidate(dentry);
|
| 1595 |
|
|
return 0;
|
| 1596 |
|
|
}
|
| 1597 |
|
|
|
| 1598 |
|
|
asmlinkage int sys32_newstat(char * filename, struct stat32 *statbuf)
|
| 1599 |
|
|
{
|
| 1600 |
|
|
struct nameidata nd;
|
| 1601 |
|
|
int error;
|
| 1602 |
|
|
|
| 1603 |
|
|
error = user_path_walk(filename, &nd);
|
| 1604 |
|
|
if (!error) {
|
| 1605 |
|
|
error = do_revalidate(nd.dentry);
|
| 1606 |
|
|
if (!error)
|
| 1607 |
|
|
error = cp_new_stat32(nd.dentry->d_inode, statbuf);
|
| 1608 |
|
|
path_release(&nd);
|
| 1609 |
|
|
}
|
| 1610 |
|
|
return error;
|
| 1611 |
|
|
}
|
| 1612 |
|
|
|
| 1613 |
|
|
asmlinkage int sys32_newlstat(char * filename, struct stat32 *statbuf)
|
| 1614 |
|
|
{
|
| 1615 |
|
|
struct nameidata nd;
|
| 1616 |
|
|
int error;
|
| 1617 |
|
|
|
| 1618 |
|
|
error = user_path_walk_link(filename, &nd);
|
| 1619 |
|
|
if (!error) {
|
| 1620 |
|
|
error = do_revalidate(nd.dentry);
|
| 1621 |
|
|
if (!error)
|
| 1622 |
|
|
error = cp_new_stat32(nd.dentry->d_inode, statbuf);
|
| 1623 |
|
|
|
| 1624 |
|
|
path_release(&nd);
|
| 1625 |
|
|
}
|
| 1626 |
|
|
return error;
|
| 1627 |
|
|
}
|
| 1628 |
|
|
|
| 1629 |
|
|
asmlinkage int sys32_newfstat(unsigned int fd, struct stat32 *statbuf)
|
| 1630 |
|
|
{
|
| 1631 |
|
|
struct file *f;
|
| 1632 |
|
|
int err = -EBADF;
|
| 1633 |
|
|
|
| 1634 |
|
|
f = fget(fd);
|
| 1635 |
|
|
if (f) {
|
| 1636 |
|
|
struct dentry * dentry = f->f_dentry;
|
| 1637 |
|
|
|
| 1638 |
|
|
err = do_revalidate(dentry);
|
| 1639 |
|
|
if (!err)
|
| 1640 |
|
|
err = cp_new_stat32(dentry->d_inode, statbuf);
|
| 1641 |
|
|
fput(f);
|
| 1642 |
|
|
}
|
| 1643 |
|
|
return err;
|
| 1644 |
|
|
}
|
| 1645 |
|
|
|
| 1646 |
|
|
extern asmlinkage int sys_sysfs(int option, unsigned long arg1, unsigned long arg2);
|
| 1647 |
|
|
|
| 1648 |
|
|
asmlinkage int sys32_sysfs(int option, u32 arg1, u32 arg2)
|
| 1649 |
|
|
{
|
| 1650 |
|
|
return sys_sysfs(option, arg1, arg2);
|
| 1651 |
|
|
}
|
| 1652 |
|
|
|
| 1653 |
|
|
struct ncp_mount_data32_v3 {
|
| 1654 |
|
|
int version;
|
| 1655 |
|
|
unsigned int ncp_fd;
|
| 1656 |
|
|
__kernel_uid_t32 mounted_uid;
|
| 1657 |
|
|
__kernel_pid_t32 wdog_pid;
|
| 1658 |
|
|
unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
|
| 1659 |
|
|
unsigned int time_out;
|
| 1660 |
|
|
unsigned int retry_count;
|
| 1661 |
|
|
unsigned int flags;
|
| 1662 |
|
|
__kernel_uid_t32 uid;
|
| 1663 |
|
|
__kernel_gid_t32 gid;
|
| 1664 |
|
|
__kernel_mode_t32 file_mode;
|
| 1665 |
|
|
__kernel_mode_t32 dir_mode;
|
| 1666 |
|
|
};
|
| 1667 |
|
|
|
| 1668 |
|
|
struct ncp_mount_data32_v4 {
|
| 1669 |
|
|
int version;
|
| 1670 |
|
|
/* all members below are "long" in ABI ... i.e. 32bit on sparc32, while 64bits on sparc64 */
|
| 1671 |
|
|
unsigned int flags;
|
| 1672 |
|
|
unsigned int mounted_uid;
|
| 1673 |
|
|
int wdog_pid;
|
| 1674 |
|
|
|
| 1675 |
|
|
unsigned int ncp_fd;
|
| 1676 |
|
|
unsigned int time_out;
|
| 1677 |
|
|
unsigned int retry_count;
|
| 1678 |
|
|
|
| 1679 |
|
|
unsigned int uid;
|
| 1680 |
|
|
unsigned int gid;
|
| 1681 |
|
|
unsigned int file_mode;
|
| 1682 |
|
|
unsigned int dir_mode;
|
| 1683 |
|
|
};
|
| 1684 |
|
|
|
| 1685 |
|
|
static void *do_ncp_super_data_conv(void *raw_data)
|
| 1686 |
|
|
{
|
| 1687 |
|
|
switch (*(int*)raw_data) {
|
| 1688 |
|
|
case NCP_MOUNT_VERSION:
|
| 1689 |
|
|
{
|
| 1690 |
|
|
struct ncp_mount_data news, *n = &news;
|
| 1691 |
|
|
struct ncp_mount_data32_v3 *n32 = (struct ncp_mount_data32_v3 *)raw_data;
|
| 1692 |
|
|
|
| 1693 |
|
|
n->version = n32->version;
|
| 1694 |
|
|
n->ncp_fd = n32->ncp_fd;
|
| 1695 |
|
|
n->mounted_uid = low2highuid(n32->mounted_uid);
|
| 1696 |
|
|
n->wdog_pid = n32->wdog_pid;
|
| 1697 |
|
|
memmove (n->mounted_vol, n32->mounted_vol, sizeof (n32->mounted_vol));
|
| 1698 |
|
|
n->time_out = n32->time_out;
|
| 1699 |
|
|
n->retry_count = n32->retry_count;
|
| 1700 |
|
|
n->flags = n32->flags;
|
| 1701 |
|
|
n->uid = low2highuid(n32->uid);
|
| 1702 |
|
|
n->gid = low2highgid(n32->gid);
|
| 1703 |
|
|
n->file_mode = n32->file_mode;
|
| 1704 |
|
|
n->dir_mode = n32->dir_mode;
|
| 1705 |
|
|
memcpy(raw_data, n, sizeof(*n));
|
| 1706 |
|
|
}
|
| 1707 |
|
|
break;
|
| 1708 |
|
|
case NCP_MOUNT_VERSION_V4:
|
| 1709 |
|
|
{
|
| 1710 |
|
|
struct ncp_mount_data_v4 news, *n = &news;
|
| 1711 |
|
|
struct ncp_mount_data32_v4 *n32 = (struct ncp_mount_data32_v4 *)raw_data;
|
| 1712 |
|
|
|
| 1713 |
|
|
n->version = n32->version;
|
| 1714 |
|
|
n->flags = n32->flags;
|
| 1715 |
|
|
n->mounted_uid = n32->mounted_uid;
|
| 1716 |
|
|
n->wdog_pid = n32->wdog_pid;
|
| 1717 |
|
|
n->ncp_fd = n32->ncp_fd;
|
| 1718 |
|
|
n->time_out = n32->time_out;
|
| 1719 |
|
|
n->retry_count = n32->retry_count;
|
| 1720 |
|
|
n->uid = n32->uid;
|
| 1721 |
|
|
n->gid = n32->gid;
|
| 1722 |
|
|
n->file_mode = n32->file_mode;
|
| 1723 |
|
|
n->dir_mode = n32->dir_mode;
|
| 1724 |
|
|
memcpy(raw_data, n, sizeof(*n));
|
| 1725 |
|
|
}
|
| 1726 |
|
|
break;
|
| 1727 |
|
|
default:
|
| 1728 |
|
|
/* do not touch unknown structures */
|
| 1729 |
|
|
break;
|
| 1730 |
|
|
}
|
| 1731 |
|
|
return raw_data;
|
| 1732 |
|
|
}
|
| 1733 |
|
|
|
| 1734 |
|
|
struct smb_mount_data32 {
|
| 1735 |
|
|
int version;
|
| 1736 |
|
|
__kernel_uid_t32 mounted_uid;
|
| 1737 |
|
|
__kernel_uid_t32 uid;
|
| 1738 |
|
|
__kernel_gid_t32 gid;
|
| 1739 |
|
|
__kernel_mode_t32 file_mode;
|
| 1740 |
|
|
__kernel_mode_t32 dir_mode;
|
| 1741 |
|
|
};
|
| 1742 |
|
|
|
| 1743 |
|
|
static void *do_smb_super_data_conv(void *raw_data)
|
| 1744 |
|
|
{
|
| 1745 |
|
|
struct smb_mount_data news, *s = &news;
|
| 1746 |
|
|
struct smb_mount_data32 *s32 = (struct smb_mount_data32 *)raw_data;
|
| 1747 |
|
|
|
| 1748 |
|
|
s->version = s32->version;
|
| 1749 |
|
|
s->mounted_uid = low2highuid(s32->mounted_uid);
|
| 1750 |
|
|
s->uid = low2highuid(s32->uid);
|
| 1751 |
|
|
s->gid = low2highgid(s32->gid);
|
| 1752 |
|
|
s->file_mode = s32->file_mode;
|
| 1753 |
|
|
s->dir_mode = s32->dir_mode;
|
| 1754 |
|
|
memcpy(raw_data, s, sizeof(struct smb_mount_data));
|
| 1755 |
|
|
return raw_data;
|
| 1756 |
|
|
}
|
| 1757 |
|
|
|
| 1758 |
|
|
static int copy_mount_stuff_to_kernel(const void *user, unsigned long *kernel)
|
| 1759 |
|
|
{
|
| 1760 |
|
|
int i;
|
| 1761 |
|
|
unsigned long page;
|
| 1762 |
|
|
struct vm_area_struct *vma;
|
| 1763 |
|
|
|
| 1764 |
|
|
*kernel = 0;
|
| 1765 |
|
|
if(!user)
|
| 1766 |
|
|
return 0;
|
| 1767 |
|
|
vma = find_vma(current->mm, (unsigned long)user);
|
| 1768 |
|
|
if(!vma || (unsigned long)user < vma->vm_start)
|
| 1769 |
|
|
return -EFAULT;
|
| 1770 |
|
|
if(!(vma->vm_flags & VM_READ))
|
| 1771 |
|
|
return -EFAULT;
|
| 1772 |
|
|
i = vma->vm_end - (unsigned long) user;
|
| 1773 |
|
|
if(PAGE_SIZE <= (unsigned long) i)
|
| 1774 |
|
|
i = PAGE_SIZE - 1;
|
| 1775 |
|
|
if(!(page = __get_free_page(GFP_KERNEL)))
|
| 1776 |
|
|
return -ENOMEM;
|
| 1777 |
|
|
if(copy_from_user((void *) page, user, i)) {
|
| 1778 |
|
|
free_page(page);
|
| 1779 |
|
|
return -EFAULT;
|
| 1780 |
|
|
}
|
| 1781 |
|
|
*kernel = page;
|
| 1782 |
|
|
return 0;
|
| 1783 |
|
|
}
|
| 1784 |
|
|
|
| 1785 |
|
|
#define SMBFS_NAME "smbfs"
|
| 1786 |
|
|
#define NCPFS_NAME "ncpfs"
|
| 1787 |
|
|
|
| 1788 |
|
|
asmlinkage int sys32_mount(char *dev_name, char *dir_name, char *type, unsigned long new_flags, u32 data)
|
| 1789 |
|
|
{
|
| 1790 |
|
|
unsigned long type_page = 0;
|
| 1791 |
|
|
unsigned long data_page = 0;
|
| 1792 |
|
|
unsigned long dev_page = 0;
|
| 1793 |
|
|
unsigned long dir_page = 0;
|
| 1794 |
|
|
int err, is_smb, is_ncp;
|
| 1795 |
|
|
|
| 1796 |
|
|
is_smb = is_ncp = 0;
|
| 1797 |
|
|
|
| 1798 |
|
|
err = copy_mount_stuff_to_kernel((const void *)type, &type_page);
|
| 1799 |
|
|
if (err)
|
| 1800 |
|
|
goto out;
|
| 1801 |
|
|
|
| 1802 |
|
|
if (type_page) {
|
| 1803 |
|
|
is_smb = !strcmp((char *)type_page, SMBFS_NAME);
|
| 1804 |
|
|
is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
|
| 1805 |
|
|
} else {
|
| 1806 |
|
|
is_smb = is_ncp = 0;
|
| 1807 |
|
|
}
|
| 1808 |
|
|
|
| 1809 |
|
|
err = copy_mount_stuff_to_kernel((const void *)AA(data), &data_page);
|
| 1810 |
|
|
if (err)
|
| 1811 |
|
|
goto type_out;
|
| 1812 |
|
|
|
| 1813 |
|
|
err = copy_mount_stuff_to_kernel(dev_name, &dev_page);
|
| 1814 |
|
|
if (err)
|
| 1815 |
|
|
goto data_out;
|
| 1816 |
|
|
|
| 1817 |
|
|
err = copy_mount_stuff_to_kernel(dir_name, &dir_page);
|
| 1818 |
|
|
if (err)
|
| 1819 |
|
|
goto dev_out;
|
| 1820 |
|
|
|
| 1821 |
|
|
if (!is_smb && !is_ncp) {
|
| 1822 |
|
|
lock_kernel();
|
| 1823 |
|
|
err = do_mount((char*)dev_page, (char*)dir_page,
|
| 1824 |
|
|
(char*)type_page, new_flags, (char*)data_page);
|
| 1825 |
|
|
unlock_kernel();
|
| 1826 |
|
|
} else {
|
| 1827 |
|
|
if (is_ncp)
|
| 1828 |
|
|
do_ncp_super_data_conv((void *)data_page);
|
| 1829 |
|
|
else
|
| 1830 |
|
|
do_smb_super_data_conv((void *)data_page);
|
| 1831 |
|
|
|
| 1832 |
|
|
lock_kernel();
|
| 1833 |
|
|
err = do_mount((char*)dev_page, (char*)dir_page,
|
| 1834 |
|
|
(char*)type_page, new_flags, (char*)data_page);
|
| 1835 |
|
|
unlock_kernel();
|
| 1836 |
|
|
}
|
| 1837 |
|
|
free_page(dir_page);
|
| 1838 |
|
|
|
| 1839 |
|
|
dev_out:
|
| 1840 |
|
|
free_page(dev_page);
|
| 1841 |
|
|
|
| 1842 |
|
|
data_out:
|
| 1843 |
|
|
free_page(data_page);
|
| 1844 |
|
|
|
| 1845 |
|
|
type_out:
|
| 1846 |
|
|
free_page(type_page);
|
| 1847 |
|
|
|
| 1848 |
|
|
out:
|
| 1849 |
|
|
return err;
|
| 1850 |
|
|
}
|
| 1851 |
|
|
|
| 1852 |
|
|
struct rusage32 {
|
| 1853 |
|
|
struct timeval32 ru_utime;
|
| 1854 |
|
|
struct timeval32 ru_stime;
|
| 1855 |
|
|
s32 ru_maxrss;
|
| 1856 |
|
|
s32 ru_ixrss;
|
| 1857 |
|
|
s32 ru_idrss;
|
| 1858 |
|
|
s32 ru_isrss;
|
| 1859 |
|
|
s32 ru_minflt;
|
| 1860 |
|
|
s32 ru_majflt;
|
| 1861 |
|
|
s32 ru_nswap;
|
| 1862 |
|
|
s32 ru_inblock;
|
| 1863 |
|
|
s32 ru_oublock;
|
| 1864 |
|
|
s32 ru_msgsnd;
|
| 1865 |
|
|
s32 ru_msgrcv;
|
| 1866 |
|
|
s32 ru_nsignals;
|
| 1867 |
|
|
s32 ru_nvcsw;
|
| 1868 |
|
|
s32 ru_nivcsw;
|
| 1869 |
|
|
};
|
| 1870 |
|
|
|
| 1871 |
|
|
static int put_rusage (struct rusage32 *ru, struct rusage *r)
|
| 1872 |
|
|
{
|
| 1873 |
|
|
int err;
|
| 1874 |
|
|
|
| 1875 |
|
|
err = put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
|
| 1876 |
|
|
err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
|
| 1877 |
|
|
err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
|
| 1878 |
|
|
err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
|
| 1879 |
|
|
err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
|
| 1880 |
|
|
err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
|
| 1881 |
|
|
err |= __put_user (r->ru_idrss, &ru->ru_idrss);
|
| 1882 |
|
|
err |= __put_user (r->ru_isrss, &ru->ru_isrss);
|
| 1883 |
|
|
err |= __put_user (r->ru_minflt, &ru->ru_minflt);
|
| 1884 |
|
|
err |= __put_user (r->ru_majflt, &ru->ru_majflt);
|
| 1885 |
|
|
err |= __put_user (r->ru_nswap, &ru->ru_nswap);
|
| 1886 |
|
|
err |= __put_user (r->ru_inblock, &ru->ru_inblock);
|
| 1887 |
|
|
err |= __put_user (r->ru_oublock, &ru->ru_oublock);
|
| 1888 |
|
|
err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
|
| 1889 |
|
|
err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
|
| 1890 |
|
|
err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
|
| 1891 |
|
|
err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
|
| 1892 |
|
|
err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
|
| 1893 |
|
|
return err;
|
| 1894 |
|
|
}
|
| 1895 |
|
|
|
| 1896 |
|
|
asmlinkage int sys32_wait4(__kernel_pid_t32 pid, unsigned int *stat_addr, int options, struct rusage32 *ru)
|
| 1897 |
|
|
{
|
| 1898 |
|
|
if (!ru)
|
| 1899 |
|
|
return sys_wait4(pid, stat_addr, options, NULL);
|
| 1900 |
|
|
else {
|
| 1901 |
|
|
struct rusage r;
|
| 1902 |
|
|
int ret;
|
| 1903 |
|
|
unsigned int status;
|
| 1904 |
|
|
mm_segment_t old_fs = get_fs();
|
| 1905 |
|
|
|
| 1906 |
|
|
set_fs (KERNEL_DS);
|
| 1907 |
|
|
ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
|
| 1908 |
|
|
set_fs (old_fs);
|
| 1909 |
|
|
if (put_rusage (ru, &r)) return -EFAULT;
|
| 1910 |
|
|
if (stat_addr && put_user (status, stat_addr))
|
| 1911 |
|
|
return -EFAULT;
|
| 1912 |
|
|
return ret;
|
| 1913 |
|
|
}
|
| 1914 |
|
|
}
|
| 1915 |
|
|
|
| 1916 |
|
|
struct sysinfo32 {
|
| 1917 |
|
|
s32 uptime;
|
| 1918 |
|
|
u32 loads[3];
|
| 1919 |
|
|
u32 totalram;
|
| 1920 |
|
|
u32 freeram;
|
| 1921 |
|
|
u32 sharedram;
|
| 1922 |
|
|
u32 bufferram;
|
| 1923 |
|
|
u32 totalswap;
|
| 1924 |
|
|
u32 freeswap;
|
| 1925 |
|
|
unsigned short procs;
|
| 1926 |
|
|
unsigned short pad;
|
| 1927 |
|
|
u32 totalhigh;
|
| 1928 |
|
|
u32 freehigh;
|
| 1929 |
|
|
u32 mem_unit;
|
| 1930 |
|
|
char _f[20-2*sizeof(int)-sizeof(int)];
|
| 1931 |
|
|
};
|
| 1932 |
|
|
|
| 1933 |
|
|
extern asmlinkage int sys_sysinfo(struct sysinfo *info);
|
| 1934 |
|
|
|
| 1935 |
|
|
asmlinkage int sys32_sysinfo(struct sysinfo32 *info)
|
| 1936 |
|
|
{
|
| 1937 |
|
|
struct sysinfo s;
|
| 1938 |
|
|
int ret, err;
|
| 1939 |
|
|
int bitcount = 0;
|
| 1940 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 1941 |
|
|
|
| 1942 |
|
|
set_fs(KERNEL_DS);
|
| 1943 |
|
|
ret = sys_sysinfo(&s);
|
| 1944 |
|
|
set_fs(old_fs);
|
| 1945 |
|
|
/* Check to see if any memory value is too large for 32-bit and
|
| 1946 |
|
|
* scale down if needed.
|
| 1947 |
|
|
*/
|
| 1948 |
|
|
if ((s.totalram >> 32) || (s.totalswap >> 32)) {
|
| 1949 |
|
|
while (s.mem_unit < PAGE_SIZE) {
|
| 1950 |
|
|
s.mem_unit <<= 1;
|
| 1951 |
|
|
bitcount++;
|
| 1952 |
|
|
}
|
| 1953 |
|
|
s.totalram >>= bitcount;
|
| 1954 |
|
|
s.freeram >>= bitcount;
|
| 1955 |
|
|
s.sharedram >>= bitcount;
|
| 1956 |
|
|
s.bufferram >>= bitcount;
|
| 1957 |
|
|
s.totalswap >>= bitcount;
|
| 1958 |
|
|
s.freeswap >>= bitcount;
|
| 1959 |
|
|
s.totalhigh >>= bitcount;
|
| 1960 |
|
|
s.freehigh >>= bitcount;
|
| 1961 |
|
|
}
|
| 1962 |
|
|
|
| 1963 |
|
|
err = put_user (s.uptime, &info->uptime);
|
| 1964 |
|
|
err |= __put_user (s.loads[0], &info->loads[0]);
|
| 1965 |
|
|
err |= __put_user (s.loads[1], &info->loads[1]);
|
| 1966 |
|
|
err |= __put_user (s.loads[2], &info->loads[2]);
|
| 1967 |
|
|
err |= __put_user (s.totalram, &info->totalram);
|
| 1968 |
|
|
err |= __put_user (s.freeram, &info->freeram);
|
| 1969 |
|
|
err |= __put_user (s.sharedram, &info->sharedram);
|
| 1970 |
|
|
err |= __put_user (s.bufferram, &info->bufferram);
|
| 1971 |
|
|
err |= __put_user (s.totalswap, &info->totalswap);
|
| 1972 |
|
|
err |= __put_user (s.freeswap, &info->freeswap);
|
| 1973 |
|
|
err |= __put_user (s.procs, &info->procs);
|
| 1974 |
|
|
err |= __put_user (s.totalhigh, &info->totalhigh);
|
| 1975 |
|
|
err |= __put_user (s.freehigh, &info->freehigh);
|
| 1976 |
|
|
err |= __put_user (s.mem_unit, &info->mem_unit);
|
| 1977 |
|
|
if (err)
|
| 1978 |
|
|
return -EFAULT;
|
| 1979 |
|
|
return ret;
|
| 1980 |
|
|
}
|
| 1981 |
|
|
|
| 1982 |
|
|
extern asmlinkage int sys_sched_rr_get_interval(pid_t pid, struct timespec *interval);
|
| 1983 |
|
|
|
| 1984 |
|
|
asmlinkage int sys32_sched_rr_get_interval(__kernel_pid_t32 pid, struct timespec32 *interval)
|
| 1985 |
|
|
{
|
| 1986 |
|
|
struct timespec t;
|
| 1987 |
|
|
int ret;
|
| 1988 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 1989 |
|
|
|
| 1990 |
|
|
set_fs (KERNEL_DS);
|
| 1991 |
|
|
ret = sys_sched_rr_get_interval(pid, &t);
|
| 1992 |
|
|
set_fs (old_fs);
|
| 1993 |
|
|
if (put_user (t.tv_sec, &interval->tv_sec) ||
|
| 1994 |
|
|
__put_user (t.tv_nsec, &interval->tv_nsec))
|
| 1995 |
|
|
return -EFAULT;
|
| 1996 |
|
|
return ret;
|
| 1997 |
|
|
}
|
| 1998 |
|
|
|
| 1999 |
|
|
extern asmlinkage int sys_nanosleep(struct timespec *rqtp, struct timespec *rmtp);
|
| 2000 |
|
|
|
| 2001 |
|
|
asmlinkage int sys32_nanosleep(struct timespec32 *rqtp, struct timespec32 *rmtp)
|
| 2002 |
|
|
{
|
| 2003 |
|
|
struct timespec t;
|
| 2004 |
|
|
int ret;
|
| 2005 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 2006 |
|
|
|
| 2007 |
|
|
if (get_user (t.tv_sec, &rqtp->tv_sec) ||
|
| 2008 |
|
|
__get_user (t.tv_nsec, &rqtp->tv_nsec))
|
| 2009 |
|
|
return -EFAULT;
|
| 2010 |
|
|
set_fs (KERNEL_DS);
|
| 2011 |
|
|
ret = sys_nanosleep(&t, rmtp ? &t : NULL);
|
| 2012 |
|
|
set_fs (old_fs);
|
| 2013 |
|
|
if (rmtp && ret == -EINTR) {
|
| 2014 |
|
|
if (__put_user (t.tv_sec, &rmtp->tv_sec) ||
|
| 2015 |
|
|
__put_user (t.tv_nsec, &rmtp->tv_nsec))
|
| 2016 |
|
|
return -EFAULT;
|
| 2017 |
|
|
}
|
| 2018 |
|
|
return ret;
|
| 2019 |
|
|
}
|
| 2020 |
|
|
|
| 2021 |
|
|
extern asmlinkage int sys_sigprocmask(int how, old_sigset_t *set, old_sigset_t *oset);
|
| 2022 |
|
|
|
| 2023 |
|
|
asmlinkage int sys32_sigprocmask(int how, old_sigset_t32 *set, old_sigset_t32 *oset)
|
| 2024 |
|
|
{
|
| 2025 |
|
|
old_sigset_t s;
|
| 2026 |
|
|
int ret;
|
| 2027 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2028 |
|
|
|
| 2029 |
|
|
if (set && get_user (s, set)) return -EFAULT;
|
| 2030 |
|
|
set_fs (KERNEL_DS);
|
| 2031 |
|
|
ret = sys_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL);
|
| 2032 |
|
|
set_fs (old_fs);
|
| 2033 |
|
|
if (ret) return ret;
|
| 2034 |
|
|
if (oset && put_user (s, oset)) return -EFAULT;
|
| 2035 |
|
|
return 0;
|
| 2036 |
|
|
}
|
| 2037 |
|
|
|
| 2038 |
|
|
extern asmlinkage int sys_rt_sigprocmask(int how, sigset_t *set, sigset_t *oset, size_t sigsetsize);
|
| 2039 |
|
|
|
| 2040 |
|
|
asmlinkage int sys32_rt_sigprocmask(int how, sigset_t32 *set, sigset_t32 *oset, __kernel_size_t32 sigsetsize)
|
| 2041 |
|
|
{
|
| 2042 |
|
|
sigset_t s;
|
| 2043 |
|
|
sigset_t32 s32;
|
| 2044 |
|
|
int ret;
|
| 2045 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2046 |
|
|
|
| 2047 |
|
|
if (set) {
|
| 2048 |
|
|
if (copy_from_user (&s32, set, sizeof(sigset_t32)))
|
| 2049 |
|
|
return -EFAULT;
|
| 2050 |
|
|
switch (_NSIG_WORDS) {
|
| 2051 |
|
|
case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
|
| 2052 |
|
|
case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
|
| 2053 |
|
|
case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
|
| 2054 |
|
|
case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
|
| 2055 |
|
|
}
|
| 2056 |
|
|
}
|
| 2057 |
|
|
set_fs (KERNEL_DS);
|
| 2058 |
|
|
ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, sigsetsize);
|
| 2059 |
|
|
set_fs (old_fs);
|
| 2060 |
|
|
if (ret) return ret;
|
| 2061 |
|
|
if (oset) {
|
| 2062 |
|
|
switch (_NSIG_WORDS) {
|
| 2063 |
|
|
case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
|
| 2064 |
|
|
case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
|
| 2065 |
|
|
case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
|
| 2066 |
|
|
case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
|
| 2067 |
|
|
}
|
| 2068 |
|
|
if (copy_to_user (oset, &s32, sizeof(sigset_t32)))
|
| 2069 |
|
|
return -EFAULT;
|
| 2070 |
|
|
}
|
| 2071 |
|
|
return 0;
|
| 2072 |
|
|
}
|
| 2073 |
|
|
|
| 2074 |
|
|
extern asmlinkage int sys_sigpending(old_sigset_t *set);
|
| 2075 |
|
|
|
| 2076 |
|
|
asmlinkage int sys32_sigpending(old_sigset_t32 *set)
|
| 2077 |
|
|
{
|
| 2078 |
|
|
old_sigset_t s;
|
| 2079 |
|
|
int ret;
|
| 2080 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2081 |
|
|
|
| 2082 |
|
|
set_fs (KERNEL_DS);
|
| 2083 |
|
|
ret = sys_sigpending(&s);
|
| 2084 |
|
|
set_fs (old_fs);
|
| 2085 |
|
|
if (put_user (s, set)) return -EFAULT;
|
| 2086 |
|
|
return ret;
|
| 2087 |
|
|
}
|
| 2088 |
|
|
|
| 2089 |
|
|
extern asmlinkage int sys_rt_sigpending(sigset_t *set, size_t sigsetsize);
|
| 2090 |
|
|
|
| 2091 |
|
|
asmlinkage int sys32_rt_sigpending(sigset_t32 *set, __kernel_size_t32 sigsetsize)
|
| 2092 |
|
|
{
|
| 2093 |
|
|
sigset_t s;
|
| 2094 |
|
|
sigset_t32 s32;
|
| 2095 |
|
|
int ret;
|
| 2096 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2097 |
|
|
|
| 2098 |
|
|
set_fs (KERNEL_DS);
|
| 2099 |
|
|
ret = sys_rt_sigpending(&s, sigsetsize);
|
| 2100 |
|
|
set_fs (old_fs);
|
| 2101 |
|
|
if (!ret) {
|
| 2102 |
|
|
switch (_NSIG_WORDS) {
|
| 2103 |
|
|
case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
|
| 2104 |
|
|
case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
|
| 2105 |
|
|
case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
|
| 2106 |
|
|
case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
|
| 2107 |
|
|
}
|
| 2108 |
|
|
if (copy_to_user (set, &s32, sizeof(sigset_t32)))
|
| 2109 |
|
|
return -EFAULT;
|
| 2110 |
|
|
}
|
| 2111 |
|
|
return ret;
|
| 2112 |
|
|
}
|
| 2113 |
|
|
|
| 2114 |
|
|
asmlinkage int
|
| 2115 |
|
|
sys32_rt_sigtimedwait(sigset_t32 *uthese, siginfo_t32 *uinfo,
|
| 2116 |
|
|
struct timespec32 *uts, __kernel_size_t32 sigsetsize)
|
| 2117 |
|
|
{
|
| 2118 |
|
|
int ret, sig;
|
| 2119 |
|
|
sigset_t these;
|
| 2120 |
|
|
sigset_t32 these32;
|
| 2121 |
|
|
struct timespec ts;
|
| 2122 |
|
|
siginfo_t info;
|
| 2123 |
|
|
long timeout = 0;
|
| 2124 |
|
|
|
| 2125 |
|
|
/* XXX: Don't preclude handling different sized sigset_t's. */
|
| 2126 |
|
|
if (sigsetsize != sizeof(sigset_t))
|
| 2127 |
|
|
return -EINVAL;
|
| 2128 |
|
|
|
| 2129 |
|
|
if (copy_from_user (&these32, uthese, sizeof(sigset_t32)))
|
| 2130 |
|
|
return -EFAULT;
|
| 2131 |
|
|
|
| 2132 |
|
|
switch (_NSIG_WORDS) {
|
| 2133 |
|
|
case 4: these.sig[3] = these32.sig[6] | (((long)these32.sig[7]) << 32);
|
| 2134 |
|
|
case 3: these.sig[2] = these32.sig[4] | (((long)these32.sig[5]) << 32);
|
| 2135 |
|
|
case 2: these.sig[1] = these32.sig[2] | (((long)these32.sig[3]) << 32);
|
| 2136 |
|
|
case 1: these.sig[0] = these32.sig[0] | (((long)these32.sig[1]) << 32);
|
| 2137 |
|
|
}
|
| 2138 |
|
|
|
| 2139 |
|
|
/*
|
| 2140 |
|
|
* Invert the set of allowed signals to get those we
|
| 2141 |
|
|
* want to block.
|
| 2142 |
|
|
*/
|
| 2143 |
|
|
sigdelsetmask(&these, sigmask(SIGKILL)|sigmask(SIGSTOP));
|
| 2144 |
|
|
signotset(&these);
|
| 2145 |
|
|
|
| 2146 |
|
|
if (uts) {
|
| 2147 |
|
|
if (get_user (ts.tv_sec, &uts->tv_sec) ||
|
| 2148 |
|
|
get_user (ts.tv_nsec, &uts->tv_nsec))
|
| 2149 |
|
|
return -EINVAL;
|
| 2150 |
|
|
if (ts.tv_nsec >= 1000000000L || ts.tv_nsec < 0
|
| 2151 |
|
|
|| ts.tv_sec < 0)
|
| 2152 |
|
|
return -EINVAL;
|
| 2153 |
|
|
}
|
| 2154 |
|
|
|
| 2155 |
|
|
spin_lock_irq(¤t->sigmask_lock);
|
| 2156 |
|
|
sig = dequeue_signal(&these, &info);
|
| 2157 |
|
|
if (!sig) {
|
| 2158 |
|
|
timeout = MAX_SCHEDULE_TIMEOUT;
|
| 2159 |
|
|
if (uts)
|
| 2160 |
|
|
timeout = (timespec_to_jiffies(&ts)
|
| 2161 |
|
|
+ (ts.tv_sec || ts.tv_nsec));
|
| 2162 |
|
|
|
| 2163 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
| 2164 |
|
|
timeout = schedule_timeout(timeout);
|
| 2165 |
|
|
|
| 2166 |
|
|
if (timeout) {
|
| 2167 |
|
|
/* None ready -- temporarily unblock those we're
|
| 2168 |
|
|
* interested while we are sleeping in so that we'll
|
| 2169 |
|
|
* be awakened when they arrive. */
|
| 2170 |
|
|
sigset_t oldblocked = current->blocked;
|
| 2171 |
|
|
sigandsets(¤t->blocked, ¤t->blocked, &these);
|
| 2172 |
|
|
recalc_sigpending(current);
|
| 2173 |
|
|
spin_unlock_irq(¤t->sigmask_lock);
|
| 2174 |
|
|
|
| 2175 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
| 2176 |
|
|
timeout = schedule_timeout(timeout);
|
| 2177 |
|
|
|
| 2178 |
|
|
spin_lock_irq(¤t->sigmask_lock);
|
| 2179 |
|
|
sig = dequeue_signal(&these, &info);
|
| 2180 |
|
|
current->blocked = oldblocked;
|
| 2181 |
|
|
recalc_sigpending(current);
|
| 2182 |
|
|
}
|
| 2183 |
|
|
}
|
| 2184 |
|
|
spin_unlock_irq(¤t->sigmask_lock);
|
| 2185 |
|
|
|
| 2186 |
|
|
if (sig) {
|
| 2187 |
|
|
ret = sig;
|
| 2188 |
|
|
if (uinfo) {
|
| 2189 |
|
|
if (copy_siginfo_to_user32(uinfo, &info))
|
| 2190 |
|
|
ret = -EFAULT;
|
| 2191 |
|
|
}
|
| 2192 |
|
|
} else {
|
| 2193 |
|
|
ret = -EAGAIN;
|
| 2194 |
|
|
if (timeout)
|
| 2195 |
|
|
ret = -EINTR;
|
| 2196 |
|
|
}
|
| 2197 |
|
|
|
| 2198 |
|
|
return ret;
|
| 2199 |
|
|
}
|
| 2200 |
|
|
|
| 2201 |
|
|
extern asmlinkage int
|
| 2202 |
|
|
sys_rt_sigqueueinfo(int pid, int sig, siginfo_t *uinfo);
|
| 2203 |
|
|
|
| 2204 |
|
|
asmlinkage int
|
| 2205 |
|
|
sys32_rt_sigqueueinfo(int pid, int sig, siginfo_t32 *uinfo)
|
| 2206 |
|
|
{
|
| 2207 |
|
|
siginfo_t info;
|
| 2208 |
|
|
int ret;
|
| 2209 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2210 |
|
|
|
| 2211 |
|
|
if (copy_from_user (&info, uinfo, 3*sizeof(int)) ||
|
| 2212 |
|
|
copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
|
| 2213 |
|
|
return -EFAULT;
|
| 2214 |
|
|
set_fs (KERNEL_DS);
|
| 2215 |
|
|
ret = sys_rt_sigqueueinfo(pid, sig, &info);
|
| 2216 |
|
|
set_fs (old_fs);
|
| 2217 |
|
|
return ret;
|
| 2218 |
|
|
}
|
| 2219 |
|
|
|
| 2220 |
|
|
struct tms32 {
|
| 2221 |
|
|
__kernel_clock_t32 tms_utime;
|
| 2222 |
|
|
__kernel_clock_t32 tms_stime;
|
| 2223 |
|
|
__kernel_clock_t32 tms_cutime;
|
| 2224 |
|
|
__kernel_clock_t32 tms_cstime;
|
| 2225 |
|
|
};
|
| 2226 |
|
|
|
| 2227 |
|
|
extern asmlinkage long sys_times(struct tms * tbuf);
|
| 2228 |
|
|
|
| 2229 |
|
|
asmlinkage long sys32_times(struct tms32 *tbuf)
|
| 2230 |
|
|
{
|
| 2231 |
|
|
struct tms t;
|
| 2232 |
|
|
long ret;
|
| 2233 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 2234 |
|
|
int err;
|
| 2235 |
|
|
|
| 2236 |
|
|
set_fs (KERNEL_DS);
|
| 2237 |
|
|
ret = sys_times(tbuf ? &t : NULL);
|
| 2238 |
|
|
set_fs (old_fs);
|
| 2239 |
|
|
if (tbuf) {
|
| 2240 |
|
|
err = put_user (t.tms_utime, &tbuf->tms_utime);
|
| 2241 |
|
|
err |= __put_user (t.tms_stime, &tbuf->tms_stime);
|
| 2242 |
|
|
err |= __put_user (t.tms_cutime, &tbuf->tms_cutime);
|
| 2243 |
|
|
err |= __put_user (t.tms_cstime, &tbuf->tms_cstime);
|
| 2244 |
|
|
if (err)
|
| 2245 |
|
|
ret = -EFAULT;
|
| 2246 |
|
|
}
|
| 2247 |
|
|
return ret;
|
| 2248 |
|
|
}
|
| 2249 |
|
|
|
| 2250 |
|
|
#define RLIM_INFINITY32 0x7fffffff
|
| 2251 |
|
|
#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
|
| 2252 |
|
|
|
| 2253 |
|
|
struct rlimit32 {
|
| 2254 |
|
|
u32 rlim_cur;
|
| 2255 |
|
|
u32 rlim_max;
|
| 2256 |
|
|
};
|
| 2257 |
|
|
|
| 2258 |
|
|
extern asmlinkage int sys_getrlimit(unsigned int resource, struct rlimit *rlim);
|
| 2259 |
|
|
|
| 2260 |
|
|
asmlinkage int sys32_getrlimit(unsigned int resource, struct rlimit32 *rlim)
|
| 2261 |
|
|
{
|
| 2262 |
|
|
struct rlimit r;
|
| 2263 |
|
|
int ret;
|
| 2264 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 2265 |
|
|
|
| 2266 |
|
|
set_fs (KERNEL_DS);
|
| 2267 |
|
|
ret = sys_getrlimit(resource, &r);
|
| 2268 |
|
|
set_fs (old_fs);
|
| 2269 |
|
|
if (!ret) {
|
| 2270 |
|
|
ret = put_user (RESOURCE32(r.rlim_cur), &rlim->rlim_cur);
|
| 2271 |
|
|
ret |= __put_user (RESOURCE32(r.rlim_max), &rlim->rlim_max);
|
| 2272 |
|
|
}
|
| 2273 |
|
|
return ret;
|
| 2274 |
|
|
}
|
| 2275 |
|
|
|
| 2276 |
|
|
extern asmlinkage int sys_setrlimit(unsigned int resource, struct rlimit *rlim);
|
| 2277 |
|
|
|
| 2278 |
|
|
asmlinkage int sys32_setrlimit(unsigned int resource, struct rlimit32 *rlim)
|
| 2279 |
|
|
{
|
| 2280 |
|
|
struct rlimit r;
|
| 2281 |
|
|
int ret;
|
| 2282 |
|
|
mm_segment_t old_fs = get_fs ();
|
| 2283 |
|
|
|
| 2284 |
|
|
if (resource >= RLIM_NLIMITS) return -EINVAL;
|
| 2285 |
|
|
if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
|
| 2286 |
|
|
__get_user (r.rlim_max, &rlim->rlim_max))
|
| 2287 |
|
|
return -EFAULT;
|
| 2288 |
|
|
if (r.rlim_cur == RLIM_INFINITY32)
|
| 2289 |
|
|
r.rlim_cur = RLIM_INFINITY;
|
| 2290 |
|
|
if (r.rlim_max == RLIM_INFINITY32)
|
| 2291 |
|
|
r.rlim_max = RLIM_INFINITY;
|
| 2292 |
|
|
set_fs (KERNEL_DS);
|
| 2293 |
|
|
ret = sys_setrlimit(resource, &r);
|
| 2294 |
|
|
set_fs (old_fs);
|
| 2295 |
|
|
return ret;
|
| 2296 |
|
|
}
|
| 2297 |
|
|
|
| 2298 |
|
|
extern asmlinkage int sys_getrusage(int who, struct rusage *ru);
|
| 2299 |
|
|
|
| 2300 |
|
|
asmlinkage int sys32_getrusage(int who, struct rusage32 *ru)
|
| 2301 |
|
|
{
|
| 2302 |
|
|
struct rusage r;
|
| 2303 |
|
|
int ret;
|
| 2304 |
|
|
mm_segment_t old_fs = get_fs();
|
| 2305 |
|
|
|
| 2306 |
|
|
set_fs (KERNEL_DS);
|
| 2307 |
|
|
ret = sys_getrusage(who, &r);
|
| 2308 |
|
|
set_fs (old_fs);
|
| 2309 |
|
|
if (put_rusage (ru, &r)) return -EFAULT;
|
| 2310 |
|
|
return ret;
|
| 2311 |
|
|
}
|
| 2312 |
|
|
|
| 2313 |
|
|
/* XXX This really belongs in some header file... -DaveM */
|
| 2314 |
|
|
#define MAX_SOCK_ADDR 128 /* 108 for Unix domain -
|
| 2315 |
|
|
16 for IP, 16 for IPX,
|
| 2316 |
|
|
24 for IPv6,
|
| 2317 |
|
|
about 80 for AX.25 */
|
| 2318 |
|
|
|
| 2319 |
|
|
extern struct socket *sockfd_lookup(int fd, int *err);
|
| 2320 |
|
|
|
| 2321 |
|
|
/* XXX This as well... */
|
| 2322 |
|
|
extern __inline__ void sockfd_put(struct socket *sock)
|
| 2323 |
|
|
{
|
| 2324 |
|
|
fput(sock->file);
|
| 2325 |
|
|
}
|
| 2326 |
|
|
|
| 2327 |
|
|
struct msghdr32 {
|
| 2328 |
|
|
u32 msg_name;
|
| 2329 |
|
|
int msg_namelen;
|
| 2330 |
|
|
u32 msg_iov;
|
| 2331 |
|
|
__kernel_size_t32 msg_iovlen;
|
| 2332 |
|
|
u32 msg_control;
|
| 2333 |
|
|
__kernel_size_t32 msg_controllen;
|
| 2334 |
|
|
unsigned msg_flags;
|
| 2335 |
|
|
};
|
| 2336 |
|
|
|
| 2337 |
|
|
struct cmsghdr32 {
|
| 2338 |
|
|
__kernel_size_t32 cmsg_len;
|
| 2339 |
|
|
int cmsg_level;
|
| 2340 |
|
|
int cmsg_type;
|
| 2341 |
|
|
};
|
| 2342 |
|
|
|
| 2343 |
|
|
/* Bleech... */
|
| 2344 |
|
|
#define __CMSG32_NXTHDR(ctl, len, cmsg, cmsglen) __cmsg32_nxthdr((ctl),(len),(cmsg),(cmsglen))
|
| 2345 |
|
|
#define CMSG32_NXTHDR(mhdr, cmsg, cmsglen) cmsg32_nxthdr((mhdr), (cmsg), (cmsglen))
|
| 2346 |
|
|
|
| 2347 |
|
|
#define CMSG32_ALIGN(len) ( ((len)+sizeof(int)-1) & ~(sizeof(int)-1) )
|
| 2348 |
|
|
|
| 2349 |
|
|
#define CMSG32_DATA(cmsg) ((void *)((char *)(cmsg) + CMSG32_ALIGN(sizeof(struct cmsghdr32))))
|
| 2350 |
|
|
#define CMSG32_SPACE(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + CMSG32_ALIGN(len))
|
| 2351 |
|
|
#define CMSG32_LEN(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + (len))
|
| 2352 |
|
|
|
| 2353 |
|
|
#define __CMSG32_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr32) ? \
|
| 2354 |
|
|
(struct cmsghdr32 *)(ctl) : \
|
| 2355 |
|
|
(struct cmsghdr32 *)NULL)
|
| 2356 |
|
|
#define CMSG32_FIRSTHDR(msg) __CMSG32_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
|
| 2357 |
|
|
|
| 2358 |
|
|
__inline__ struct cmsghdr32 *__cmsg32_nxthdr(void *__ctl, __kernel_size_t __size,
|
| 2359 |
|
|
struct cmsghdr32 *__cmsg, int __cmsg_len)
|
| 2360 |
|
|
{
|
| 2361 |
|
|
struct cmsghdr32 * __ptr;
|
| 2362 |
|
|
|
| 2363 |
|
|
__ptr = (struct cmsghdr32 *)(((unsigned char *) __cmsg) +
|
| 2364 |
|
|
CMSG32_ALIGN(__cmsg_len));
|
| 2365 |
|
|
if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
|
| 2366 |
|
|
return NULL;
|
| 2367 |
|
|
|
| 2368 |
|
|
return __ptr;
|
| 2369 |
|
|
}
|
| 2370 |
|
|
|
| 2371 |
|
|
__inline__ struct cmsghdr32 *cmsg32_nxthdr (struct msghdr *__msg,
|
| 2372 |
|
|
struct cmsghdr32 *__cmsg,
|
| 2373 |
|
|
int __cmsg_len)
|
| 2374 |
|
|
{
|
| 2375 |
|
|
return __cmsg32_nxthdr(__msg->msg_control, __msg->msg_controllen,
|
| 2376 |
|
|
__cmsg, __cmsg_len);
|
| 2377 |
|
|
}
|
| 2378 |
|
|
|
| 2379 |
|
|
static inline int iov_from_user32_to_kern(struct iovec *kiov,
|
| 2380 |
|
|
struct iovec32 *uiov32,
|
| 2381 |
|
|
int niov)
|
| 2382 |
|
|
{
|
| 2383 |
|
|
int tot_len = 0;
|
| 2384 |
|
|
|
| 2385 |
|
|
while(niov > 0) {
|
| 2386 |
|
|
u32 len, buf;
|
| 2387 |
|
|
|
| 2388 |
|
|
if(get_user(len, &uiov32->iov_len) ||
|
| 2389 |
|
|
get_user(buf, &uiov32->iov_base)) {
|
| 2390 |
|
|
tot_len = -EFAULT;
|
| 2391 |
|
|
break;
|
| 2392 |
|
|
}
|
| 2393 |
|
|
tot_len += len;
|
| 2394 |
|
|
kiov->iov_base = (void *)A(buf);
|
| 2395 |
|
|
kiov->iov_len = (__kernel_size_t) len;
|
| 2396 |
|
|
uiov32++;
|
| 2397 |
|
|
kiov++;
|
| 2398 |
|
|
niov--;
|
| 2399 |
|
|
}
|
| 2400 |
|
|
return tot_len;
|
| 2401 |
|
|
}
|
| 2402 |
|
|
|
| 2403 |
|
|
static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg,
|
| 2404 |
|
|
struct msghdr32 *umsg)
|
| 2405 |
|
|
{
|
| 2406 |
|
|
u32 tmp1, tmp2, tmp3;
|
| 2407 |
|
|
int err;
|
| 2408 |
|
|
|
| 2409 |
|
|
err = get_user(tmp1, &umsg->msg_name);
|
| 2410 |
|
|
err |= __get_user(tmp2, &umsg->msg_iov);
|
| 2411 |
|
|
err |= __get_user(tmp3, &umsg->msg_control);
|
| 2412 |
|
|
if (err)
|
| 2413 |
|
|
return -EFAULT;
|
| 2414 |
|
|
|
| 2415 |
|
|
kmsg->msg_name = (void *)A(tmp1);
|
| 2416 |
|
|
kmsg->msg_iov = (struct iovec *)A(tmp2);
|
| 2417 |
|
|
kmsg->msg_control = (void *)A(tmp3);
|
| 2418 |
|
|
|
| 2419 |
|
|
err = get_user(kmsg->msg_namelen, &umsg->msg_namelen);
|
| 2420 |
|
|
err |= get_user(kmsg->msg_iovlen, &umsg->msg_iovlen);
|
| 2421 |
|
|
err |= get_user(kmsg->msg_controllen, &umsg->msg_controllen);
|
| 2422 |
|
|
err |= get_user(kmsg->msg_flags, &umsg->msg_flags);
|
| 2423 |
|
|
|
| 2424 |
|
|
return err;
|
| 2425 |
|
|
}
|
| 2426 |
|
|
|
| 2427 |
|
|
/* I've named the args so it is easy to tell whose space the pointers are in. */
|
| 2428 |
|
|
static int verify_iovec32(struct msghdr *kern_msg, struct iovec *kern_iov,
|
| 2429 |
|
|
char *kern_address, int mode)
|
| 2430 |
|
|
{
|
| 2431 |
|
|
int tot_len;
|
| 2432 |
|
|
|
| 2433 |
|
|
if(kern_msg->msg_namelen) {
|
| 2434 |
|
|
if(mode==VERIFY_READ) {
|
| 2435 |
|
|
int err = move_addr_to_kernel(kern_msg->msg_name,
|
| 2436 |
|
|
kern_msg->msg_namelen,
|
| 2437 |
|
|
kern_address);
|
| 2438 |
|
|
if(err < 0)
|
| 2439 |
|
|
return err;
|
| 2440 |
|
|
}
|
| 2441 |
|
|
kern_msg->msg_name = kern_address;
|
| 2442 |
|
|
} else
|
| 2443 |
|
|
kern_msg->msg_name = NULL;
|
| 2444 |
|
|
|
| 2445 |
|
|
if(kern_msg->msg_iovlen > UIO_FASTIOV) {
|
| 2446 |
|
|
kern_iov = kmalloc(kern_msg->msg_iovlen * sizeof(struct iovec),
|
| 2447 |
|
|
GFP_KERNEL);
|
| 2448 |
|
|
if(!kern_iov)
|
| 2449 |
|
|
return -ENOMEM;
|
| 2450 |
|
|
}
|
| 2451 |
|
|
|
| 2452 |
|
|
tot_len = iov_from_user32_to_kern(kern_iov,
|
| 2453 |
|
|
(struct iovec32 *)kern_msg->msg_iov,
|
| 2454 |
|
|
kern_msg->msg_iovlen);
|
| 2455 |
|
|
if(tot_len >= 0)
|
| 2456 |
|
|
kern_msg->msg_iov = kern_iov;
|
| 2457 |
|
|
else if(kern_msg->msg_iovlen > UIO_FASTIOV)
|
| 2458 |
|
|
kfree(kern_iov);
|
| 2459 |
|
|
|
| 2460 |
|
|
return tot_len;
|
| 2461 |
|
|
}
|
| 2462 |
|
|
|
| 2463 |
|
|
/* There is a lot of hair here because the alignment rules (and
|
| 2464 |
|
|
* thus placement) of cmsg headers and length are different for
|
| 2465 |
|
|
* 32-bit apps. -DaveM
|
| 2466 |
|
|
*/
|
| 2467 |
|
|
static int cmsghdr_from_user32_to_kern(struct msghdr *kmsg,
|
| 2468 |
|
|
unsigned char *stackbuf, int stackbuf_size)
|
| 2469 |
|
|
{
|
| 2470 |
|
|
struct cmsghdr32 *ucmsg;
|
| 2471 |
|
|
struct cmsghdr *kcmsg, *kcmsg_base;
|
| 2472 |
|
|
__kernel_size_t32 ucmlen;
|
| 2473 |
|
|
__kernel_size_t kcmlen, tmp;
|
| 2474 |
|
|
|
| 2475 |
|
|
kcmlen = 0;
|
| 2476 |
|
|
kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
|
| 2477 |
|
|
ucmsg = CMSG32_FIRSTHDR(kmsg);
|
| 2478 |
|
|
while(ucmsg != NULL) {
|
| 2479 |
|
|
if(get_user(ucmlen, &ucmsg->cmsg_len))
|
| 2480 |
|
|
return -EFAULT;
|
| 2481 |
|
|
|
| 2482 |
|
|
/* Catch bogons. */
|
| 2483 |
|
|
if(CMSG32_ALIGN(ucmlen) <
|
| 2484 |
|
|
CMSG32_ALIGN(sizeof(struct cmsghdr32)))
|
| 2485 |
|
|
return -EINVAL;
|
| 2486 |
|
|
if((unsigned long)(((char *)ucmsg - (char *)kmsg->msg_control)
|
| 2487 |
|
|
+ ucmlen) > kmsg->msg_controllen)
|
| 2488 |
|
|
return -EINVAL;
|
| 2489 |
|
|
|
| 2490 |
|
|
tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) +
|
| 2491 |
|
|
CMSG_ALIGN(sizeof(struct cmsghdr)));
|
| 2492 |
|
|
kcmlen += tmp;
|
| 2493 |
|
|
ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen);
|
| 2494 |
|
|
}
|
| 2495 |
|
|
if(kcmlen == 0)
|
| 2496 |
|
|
return -EINVAL;
|
| 2497 |
|
|
|
| 2498 |
|
|
/* The kcmlen holds the 64-bit version of the control length.
|
| 2499 |
|
|
* It may not be modified as we do not stick it into the kmsg
|
| 2500 |
|
|
* until we have successfully copied over all of the data
|
| 2501 |
|
|
* from the user.
|
| 2502 |
|
|
*/
|
| 2503 |
|
|
if(kcmlen > stackbuf_size)
|
| 2504 |
|
|
kcmsg_base = kcmsg = kmalloc(kcmlen, GFP_KERNEL);
|
| 2505 |
|
|
if(kcmsg == NULL)
|
| 2506 |
|
|
return -ENOBUFS;
|
| 2507 |
|
|
|
| 2508 |
|
|
/* Now copy them over neatly. */
|
| 2509 |
|
|
memset(kcmsg, 0, kcmlen);
|
| 2510 |
|
|
ucmsg = CMSG32_FIRSTHDR(kmsg);
|
| 2511 |
|
|
while(ucmsg != NULL) {
|
| 2512 |
|
|
__get_user(ucmlen, &ucmsg->cmsg_len);
|
| 2513 |
|
|
tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) +
|
| 2514 |
|
|
CMSG_ALIGN(sizeof(struct cmsghdr)));
|
| 2515 |
|
|
kcmsg->cmsg_len = tmp;
|
| 2516 |
|
|
__get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level);
|
| 2517 |
|
|
__get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type);
|
| 2518 |
|
|
|
| 2519 |
|
|
/* Copy over the data. */
|
| 2520 |
|
|
if(copy_from_user(CMSG_DATA(kcmsg),
|
| 2521 |
|
|
CMSG32_DATA(ucmsg),
|
| 2522 |
|
|
(ucmlen - CMSG32_ALIGN(sizeof(*ucmsg)))))
|
| 2523 |
|
|
goto out_free_efault;
|
| 2524 |
|
|
|
| 2525 |
|
|
/* Advance. */
|
| 2526 |
|
|
kcmsg = (struct cmsghdr *)((char *)kcmsg + CMSG_ALIGN(tmp));
|
| 2527 |
|
|
ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen);
|
| 2528 |
|
|
}
|
| 2529 |
|
|
|
| 2530 |
|
|
/* Ok, looks like we made it. Hook it up and return success. */
|
| 2531 |
|
|
kmsg->msg_control = kcmsg_base;
|
| 2532 |
|
|
kmsg->msg_controllen = kcmlen;
|
| 2533 |
|
|
return 0;
|
| 2534 |
|
|
|
| 2535 |
|
|
out_free_efault:
|
| 2536 |
|
|
if(kcmsg_base != (struct cmsghdr *)stackbuf)
|
| 2537 |
|
|
kfree(kcmsg_base);
|
| 2538 |
|
|
return -EFAULT;
|
| 2539 |
|
|
}
|
| 2540 |
|
|
|
| 2541 |
|
|
static void put_cmsg32(struct msghdr *kmsg, int level, int type,
|
| 2542 |
|
|
int len, void *data)
|
| 2543 |
|
|
{
|
| 2544 |
|
|
struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control;
|
| 2545 |
|
|
struct cmsghdr32 cmhdr;
|
| 2546 |
|
|
int cmlen = CMSG32_LEN(len);
|
| 2547 |
|
|
|
| 2548 |
|
|
if(cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
|
| 2549 |
|
|
kmsg->msg_flags |= MSG_CTRUNC;
|
| 2550 |
|
|
return;
|
| 2551 |
|
|
}
|
| 2552 |
|
|
|
| 2553 |
|
|
if(kmsg->msg_controllen < cmlen) {
|
| 2554 |
|
|
kmsg->msg_flags |= MSG_CTRUNC;
|
| 2555 |
|
|
cmlen = kmsg->msg_controllen;
|
| 2556 |
|
|
}
|
| 2557 |
|
|
cmhdr.cmsg_level = level;
|
| 2558 |
|
|
cmhdr.cmsg_type = type;
|
| 2559 |
|
|
cmhdr.cmsg_len = cmlen;
|
| 2560 |
|
|
|
| 2561 |
|
|
if(copy_to_user(cm, &cmhdr, sizeof cmhdr))
|
| 2562 |
|
|
return;
|
| 2563 |
|
|
if(copy_to_user(CMSG32_DATA(cm), data, cmlen - sizeof(struct cmsghdr32)))
|
| 2564 |
|
|
return;
|
| 2565 |
|
|
cmlen = CMSG32_SPACE(len);
|
| 2566 |
|
|
kmsg->msg_control += cmlen;
|
| 2567 |
|
|
kmsg->msg_controllen -= cmlen;
|
| 2568 |
|
|
}
|
| 2569 |
|
|
|
| 2570 |
|
|
static void scm_detach_fds32(struct msghdr *kmsg, struct scm_cookie *scm)
|
| 2571 |
|
|
{
|
| 2572 |
|
|
struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control;
|
| 2573 |
|
|
int fdmax = (kmsg->msg_controllen - sizeof(struct cmsghdr32)) / sizeof(int);
|
| 2574 |
|
|
int fdnum = scm->fp->count;
|
| 2575 |
|
|
struct file **fp = scm->fp->fp;
|
| 2576 |
|
|
int *cmfptr;
|
| 2577 |
|
|
int err = 0, i;
|
| 2578 |
|
|
|
| 2579 |
|
|
if (fdnum < fdmax)
|
| 2580 |
|
|
fdmax = fdnum;
|
| 2581 |
|
|
|
| 2582 |
|
|
for (i = 0, cmfptr = (int *) CMSG32_DATA(cm); i < fdmax; i++, cmfptr++) {
|
| 2583 |
|
|
int new_fd;
|
| 2584 |
|
|
err = get_unused_fd();
|
| 2585 |
|
|
if (err < 0)
|
| 2586 |
|
|
break;
|
| 2587 |
|
|
new_fd = err;
|
| 2588 |
|
|
err = put_user(new_fd, cmfptr);
|
| 2589 |
|
|
if (err) {
|
| 2590 |
|
|
put_unused_fd(new_fd);
|
| 2591 |
|
|
break;
|
| 2592 |
|
|
}
|
| 2593 |
|
|
/* Bump the usage count and install the file. */
|
| 2594 |
|
|
get_file(fp[i]);
|
| 2595 |
|
|
fd_install(new_fd, fp[i]);
|
| 2596 |
|
|
}
|
| 2597 |
|
|
|
| 2598 |
|
|
if (i > 0) {
|
| 2599 |
|
|
int cmlen = CMSG32_LEN(i * sizeof(int));
|
| 2600 |
|
|
if (!err)
|
| 2601 |
|
|
err = put_user(SOL_SOCKET, &cm->cmsg_level);
|
| 2602 |
|
|
if (!err)
|
| 2603 |
|
|
err = put_user(SCM_RIGHTS, &cm->cmsg_type);
|
| 2604 |
|
|
if (!err)
|
| 2605 |
|
|
err = put_user(cmlen, &cm->cmsg_len);
|
| 2606 |
|
|
if (!err) {
|
| 2607 |
|
|
cmlen = CMSG32_SPACE(i * sizeof(int));
|
| 2608 |
|
|
kmsg->msg_control += cmlen;
|
| 2609 |
|
|
kmsg->msg_controllen -= cmlen;
|
| 2610 |
|
|
}
|
| 2611 |
|
|
}
|
| 2612 |
|
|
if (i < fdnum)
|
| 2613 |
|
|
kmsg->msg_flags |= MSG_CTRUNC;
|
| 2614 |
|
|
|
| 2615 |
|
|
/*
|
| 2616 |
|
|
* All of the files that fit in the message have had their
|
| 2617 |
|
|
* usage counts incremented, so we just free the list.
|
| 2618 |
|
|
*/
|
| 2619 |
|
|
__scm_destroy(scm);
|
| 2620 |
|
|
}
|
| 2621 |
|
|
|
| 2622 |
|
|
/* In these cases we (currently) can just copy to data over verbatim
|
| 2623 |
|
|
* because all CMSGs created by the kernel have well defined types which
|
| 2624 |
|
|
* have the same layout in both the 32-bit and 64-bit API. One must add
|
| 2625 |
|
|
* some special cased conversions here if we start sending control messages
|
| 2626 |
|
|
* with incompatible types.
|
| 2627 |
|
|
*
|
| 2628 |
|
|
* SCM_RIGHTS and SCM_CREDENTIALS are done by hand in recvmsg32 right after
|
| 2629 |
|
|
* we do our work. The remaining cases are:
|
| 2630 |
|
|
*
|
| 2631 |
|
|
* SOL_IP IP_PKTINFO struct in_pktinfo 32-bit clean
|
| 2632 |
|
|
* IP_TTL int 32-bit clean
|
| 2633 |
|
|
* IP_TOS __u8 32-bit clean
|
| 2634 |
|
|
* IP_RECVOPTS variable length 32-bit clean
|
| 2635 |
|
|
* IP_RETOPTS variable length 32-bit clean
|
| 2636 |
|
|
* (these last two are clean because the types are defined
|
| 2637 |
|
|
* by the IPv4 protocol)
|
| 2638 |
|
|
* IP_RECVERR struct sock_extended_err +
|
| 2639 |
|
|
* struct sockaddr_in 32-bit clean
|
| 2640 |
|
|
* SOL_IPV6 IPV6_RECVERR struct sock_extended_err +
|
| 2641 |
|
|
* struct sockaddr_in6 32-bit clean
|
| 2642 |
|
|
* IPV6_PKTINFO struct in6_pktinfo 32-bit clean
|
| 2643 |
|
|
* IPV6_HOPLIMIT int 32-bit clean
|
| 2644 |
|
|
* IPV6_FLOWINFO u32 32-bit clean
|
| 2645 |
|
|
* IPV6_HOPOPTS ipv6 hop exthdr 32-bit clean
|
| 2646 |
|
|
* IPV6_DSTOPTS ipv6 dst exthdr(s) 32-bit clean
|
| 2647 |
|
|
* IPV6_RTHDR ipv6 routing exthdr 32-bit clean
|
| 2648 |
|
|
* IPV6_AUTHHDR ipv6 auth exthdr 32-bit clean
|
| 2649 |
|
|
*/
|
| 2650 |
|
|
static void cmsg32_recvmsg_fixup(struct msghdr *kmsg, unsigned long orig_cmsg_uptr)
|
| 2651 |
|
|
{
|
| 2652 |
|
|
unsigned char *workbuf, *wp;
|
| 2653 |
|
|
unsigned long bufsz, space_avail;
|
| 2654 |
|
|
struct cmsghdr *ucmsg;
|
| 2655 |
|
|
|
| 2656 |
|
|
bufsz = ((unsigned long)kmsg->msg_control) - orig_cmsg_uptr;
|
| 2657 |
|
|
space_avail = kmsg->msg_controllen + bufsz;
|
| 2658 |
|
|
wp = workbuf = kmalloc(bufsz, GFP_KERNEL);
|
| 2659 |
|
|
if(workbuf == NULL)
|
| 2660 |
|
|
goto fail;
|
| 2661 |
|
|
|
| 2662 |
|
|
/* To make this more sane we assume the kernel sends back properly
|
| 2663 |
|
|
* formatted control messages. Because of how the kernel will truncate
|
| 2664 |
|
|
* the cmsg_len for MSG_TRUNC cases, we need not check that case either.
|
| 2665 |
|
|
*/
|
| 2666 |
|
|
ucmsg = (struct cmsghdr *) orig_cmsg_uptr;
|
| 2667 |
|
|
while(((unsigned long)ucmsg) <=
|
| 2668 |
|
|
(((unsigned long)kmsg->msg_control) - sizeof(struct cmsghdr))) {
|
| 2669 |
|
|
struct cmsghdr32 *kcmsg32 = (struct cmsghdr32 *) wp;
|
| 2670 |
|
|
int clen64, clen32;
|
| 2671 |
|
|
|
| 2672 |
|
|
/* UCMSG is the 64-bit format CMSG entry in user-space.
|
| 2673 |
|
|
* KCMSG32 is within the kernel space temporary buffer
|
| 2674 |
|
|
* we use to convert into a 32-bit style CMSG.
|
| 2675 |
|
|
*/
|
| 2676 |
|
|
__get_user(kcmsg32->cmsg_len, &ucmsg->cmsg_len);
|
| 2677 |
|
|
__get_user(kcmsg32->cmsg_level, &ucmsg->cmsg_level);
|
| 2678 |
|
|
__get_user(kcmsg32->cmsg_type, &ucmsg->cmsg_type);
|
| 2679 |
|
|
|
| 2680 |
|
|
clen64 = kcmsg32->cmsg_len;
|
| 2681 |
|
|
if (kcmsg32->cmsg_level == SOL_SOCKET &&
|
| 2682 |
|
|
kcmsg32->cmsg_type == SO_TIMESTAMP) {
|
| 2683 |
|
|
struct timeval tv;
|
| 2684 |
|
|
struct timeval32 *tv32;
|
| 2685 |
|
|
|
| 2686 |
|
|
if (clen64 != CMSG_LEN(sizeof(struct timeval))) {
|
| 2687 |
|
|
kfree(workbuf);
|
| 2688 |
|
|
goto fail;
|
| 2689 |
|
|
}
|
| 2690 |
|
|
|
| 2691 |
|
|
copy_from_user(&tv, CMSG_DATA(ucmsg), sizeof(tv));
|
| 2692 |
|
|
tv32 = (struct timeval32 *)CMSG32_DATA(kcmsg32);
|
| 2693 |
|
|
tv32->tv_sec = tv.tv_sec;
|
| 2694 |
|
|
tv32->tv_usec = tv.tv_usec;
|
| 2695 |
|
|
clen32 = sizeof(*tv32) +
|
| 2696 |
|
|
CMSG32_ALIGN(sizeof(struct cmsghdr32));
|
| 2697 |
|
|
} else {
|
| 2698 |
|
|
copy_from_user(CMSG32_DATA(kcmsg32), CMSG_DATA(ucmsg),
|
| 2699 |
|
|
clen64 - CMSG_ALIGN(sizeof(*ucmsg)));
|
| 2700 |
|
|
clen32 = ((clen64 - CMSG_ALIGN(sizeof(*ucmsg))) +
|
| 2701 |
|
|
CMSG32_ALIGN(sizeof(struct cmsghdr32)));
|
| 2702 |
|
|
}
|
| 2703 |
|
|
kcmsg32->cmsg_len = clen32;
|
| 2704 |
|
|
|
| 2705 |
|
|
ucmsg = (struct cmsghdr *) (((char *)ucmsg) + CMSG_ALIGN(clen64));
|
| 2706 |
|
|
wp = (((char *)kcmsg32) + CMSG32_ALIGN(clen32));
|
| 2707 |
|
|
}
|
| 2708 |
|
|
|
| 2709 |
|
|
/* Copy back fixed up data, and adjust pointers. */
|
| 2710 |
|
|
bufsz = (wp - workbuf);
|
| 2711 |
|
|
copy_to_user((void *)orig_cmsg_uptr, workbuf, bufsz);
|
| 2712 |
|
|
|
| 2713 |
|
|
kmsg->msg_control = (struct cmsghdr *)
|
| 2714 |
|
|
(((char *)orig_cmsg_uptr) + bufsz);
|
| 2715 |
|
|
kmsg->msg_controllen = space_avail - bufsz;
|
| 2716 |
|
|
|
| 2717 |
|
|
kfree(workbuf);
|
| 2718 |
|
|
return;
|
| 2719 |
|
|
|
| 2720 |
|
|
fail:
|
| 2721 |
|
|
/* If we leave the 64-bit format CMSG chunks in there,
|
| 2722 |
|
|
* the application could get confused and crash. So to
|
| 2723 |
|
|
* ensure greater recovery, we report no CMSGs.
|
| 2724 |
|
|
*/
|
| 2725 |
|
|
kmsg->msg_controllen += bufsz;
|
| 2726 |
|
|
kmsg->msg_control = (void *) orig_cmsg_uptr;
|
| 2727 |
|
|
}
|
| 2728 |
|
|
|
| 2729 |
|
|
asmlinkage int sys32_sendmsg(int fd, struct msghdr32 *user_msg, unsigned user_flags)
|
| 2730 |
|
|
{
|
| 2731 |
|
|
struct socket *sock;
|
| 2732 |
|
|
char address[MAX_SOCK_ADDR];
|
| 2733 |
|
|
struct iovec iov[UIO_FASTIOV];
|
| 2734 |
|
|
unsigned char ctl[sizeof(struct cmsghdr) + 20];
|
| 2735 |
|
|
unsigned char *ctl_buf = ctl;
|
| 2736 |
|
|
struct msghdr kern_msg;
|
| 2737 |
|
|
int err, total_len;
|
| 2738 |
|
|
|
| 2739 |
|
|
if(msghdr_from_user32_to_kern(&kern_msg, user_msg))
|
| 2740 |
|
|
return -EFAULT;
|
| 2741 |
|
|
if(kern_msg.msg_iovlen > UIO_MAXIOV)
|
| 2742 |
|
|
return -EINVAL;
|
| 2743 |
|
|
err = verify_iovec32(&kern_msg, iov, address, VERIFY_READ);
|
| 2744 |
|
|
if (err < 0)
|
| 2745 |
|
|
goto out;
|
| 2746 |
|
|
total_len = err;
|
| 2747 |
|
|
|
| 2748 |
|
|
if(kern_msg.msg_controllen) {
|
| 2749 |
|
|
err = cmsghdr_from_user32_to_kern(&kern_msg, ctl, sizeof(ctl));
|
| 2750 |
|
|
if(err)
|
| 2751 |
|
|
goto out_freeiov;
|
| 2752 |
|
|
ctl_buf = kern_msg.msg_control;
|
| 2753 |
|
|
}
|
| 2754 |
|
|
kern_msg.msg_flags = user_flags;
|
| 2755 |
|
|
|
| 2756 |
|
|
sock = sockfd_lookup(fd, &err);
|
| 2757 |
|
|
if (sock != NULL) {
|
| 2758 |
|
|
if (sock->file->f_flags & O_NONBLOCK)
|
| 2759 |
|
|
kern_msg.msg_flags |= MSG_DONTWAIT;
|
| 2760 |
|
|
err = sock_sendmsg(sock, &kern_msg, total_len);
|
| 2761 |
|
|
sockfd_put(sock);
|
| 2762 |
|
|
}
|
| 2763 |
|
|
|
| 2764 |
|
|
/* N.B. Use kfree here, as kern_msg.msg_controllen might change? */
|
| 2765 |
|
|
if(ctl_buf != ctl)
|
| 2766 |
|
|
kfree(ctl_buf);
|
| 2767 |
|
|
out_freeiov:
|
| 2768 |
|
|
if(kern_msg.msg_iov != iov)
|
| 2769 |
|
|
kfree(kern_msg.msg_iov);
|
| 2770 |
|
|
out:
|
| 2771 |
|
|
return err;
|
| 2772 |
|
|
}
|
| 2773 |
|
|
|
| 2774 |
|
|
asmlinkage int sys32_recvmsg(int fd, struct msghdr32 *user_msg, unsigned int user_flags)
|
| 2775 |
|
|
{
|
| 2776 |
|
|
struct iovec iovstack[UIO_FASTIOV];
|
| 2777 |
|
|
struct msghdr kern_msg;
|
| 2778 |
|
|
char addr[MAX_SOCK_ADDR];
|
| 2779 |
|
|
struct socket *sock;
|
| 2780 |
|
|
struct iovec *iov = iovstack;
|
| 2781 |
|
|
struct sockaddr *uaddr;
|
| 2782 |
|
|
int *uaddr_len;
|
| 2783 |
|
|
unsigned long cmsg_ptr;
|
| 2784 |
|
|
int err, total_len, len = 0;
|
| 2785 |
|
|
|
| 2786 |
|
|
if(msghdr_from_user32_to_kern(&kern_msg, user_msg))
|
| 2787 |
|
|
return -EFAULT;
|
| 2788 |
|
|
if(kern_msg.msg_iovlen > UIO_MAXIOV)
|
| 2789 |
|
|
return -EINVAL;
|
| 2790 |
|
|
|
| 2791 |
|
|
uaddr = kern_msg.msg_name;
|
| 2792 |
|
|
uaddr_len = &user_msg->msg_namelen;
|
| 2793 |
|
|
err = verify_iovec32(&kern_msg, iov, addr, VERIFY_WRITE);
|
| 2794 |
|
|
if (err < 0)
|
| 2795 |
|
|
goto out;
|
| 2796 |
|
|
total_len = err;
|
| 2797 |
|
|
|
| 2798 |
|
|
cmsg_ptr = (unsigned long) kern_msg.msg_control;
|
| 2799 |
|
|
kern_msg.msg_flags = 0;
|
| 2800 |
|
|
|
| 2801 |
|
|
sock = sockfd_lookup(fd, &err);
|
| 2802 |
|
|
if (sock != NULL) {
|
| 2803 |
|
|
struct scm_cookie scm;
|
| 2804 |
|
|
|
| 2805 |
|
|
if (sock->file->f_flags & O_NONBLOCK)
|
| 2806 |
|
|
user_flags |= MSG_DONTWAIT;
|
| 2807 |
|
|
memset(&scm, 0, sizeof(scm));
|
| 2808 |
|
|
err = sock->ops->recvmsg(sock, &kern_msg, total_len,
|
| 2809 |
|
|
user_flags, &scm);
|
| 2810 |
|
|
if(err >= 0) {
|
| 2811 |
|
|
len = err;
|
| 2812 |
|
|
if(!kern_msg.msg_control) {
|
| 2813 |
|
|
if(sock->passcred || scm.fp)
|
| 2814 |
|
|
kern_msg.msg_flags |= MSG_CTRUNC;
|
| 2815 |
|
|
if(scm.fp)
|
| 2816 |
|
|
__scm_destroy(&scm);
|
| 2817 |
|
|
} else {
|
| 2818 |
|
|
/* If recvmsg processing itself placed some
|
| 2819 |
|
|
* control messages into user space, it's is
|
| 2820 |
|
|
* using 64-bit CMSG processing, so we need
|
| 2821 |
|
|
* to fix it up before we tack on more stuff.
|
| 2822 |
|
|
*/
|
| 2823 |
|
|
if((unsigned long) kern_msg.msg_control != cmsg_ptr)
|
| 2824 |
|
|
cmsg32_recvmsg_fixup(&kern_msg, cmsg_ptr);
|
| 2825 |
|
|
|
| 2826 |
|
|
/* Wheee... */
|
| 2827 |
|
|
if(sock->passcred)
|
| 2828 |
|
|
put_cmsg32(&kern_msg,
|
| 2829 |
|
|
SOL_SOCKET, SCM_CREDENTIALS,
|
| 2830 |
|
|
sizeof(scm.creds), &scm.creds);
|
| 2831 |
|
|
if(scm.fp != NULL)
|
| 2832 |
|
|
scm_detach_fds32(&kern_msg, &scm);
|
| 2833 |
|
|
}
|
| 2834 |
|
|
}
|
| 2835 |
|
|
sockfd_put(sock);
|
| 2836 |
|
|
}
|
| 2837 |
|
|
|
| 2838 |
|
|
if(uaddr != NULL && err >= 0)
|
| 2839 |
|
|
err = move_addr_to_user(addr, kern_msg.msg_namelen, uaddr, uaddr_len);
|
| 2840 |
|
|
if(cmsg_ptr != 0 && err >= 0) {
|
| 2841 |
|
|
unsigned long ucmsg_ptr = ((unsigned long)kern_msg.msg_control);
|
| 2842 |
|
|
__kernel_size_t32 uclen = (__kernel_size_t32) (ucmsg_ptr - cmsg_ptr);
|
| 2843 |
|
|
err |= __put_user(uclen, &user_msg->msg_controllen);
|
| 2844 |
|
|
}
|
| 2845 |
|
|
if(err >= 0)
|
| 2846 |
|
|
err = __put_user(kern_msg.msg_flags, &user_msg->msg_flags);
|
| 2847 |
|
|
if(kern_msg.msg_iov != iov)
|
| 2848 |
|
|
kfree(kern_msg.msg_iov);
|
| 2849 |
|
|
out:
|
| 2850 |
|
|
if(err < 0)
|
| 2851 |
|
|
return err;
|
| 2852 |
|
|
return len;
|
| 2853 |
|
|
}
|
| 2854 |
|
|
|
| 2855 |
|
|
extern asmlinkage int sys_setsockopt(int fd, int level, int optname,
|
| 2856 |
|
|
char *optval, int optlen);
|
| 2857 |
|
|
|
| 2858 |
|
|
static int do_netfilter_replace(int fd, int level, int optname,
|
| 2859 |
|
|
char *optval, int optlen)
|
| 2860 |
|
|
{
|
| 2861 |
|
|
struct ipt_replace32 {
|
| 2862 |
|
|
char name[IPT_TABLE_MAXNAMELEN];
|
| 2863 |
|
|
__u32 valid_hooks;
|
| 2864 |
|
|
__u32 num_entries;
|
| 2865 |
|
|
__u32 size;
|
| 2866 |
|
|
__u32 hook_entry[NF_IP_NUMHOOKS];
|
| 2867 |
|
|
__u32 underflow[NF_IP_NUMHOOKS];
|
| 2868 |
|
|
__u32 num_counters;
|
| 2869 |
|
|
__u32 counters;
|
| 2870 |
|
|
struct ipt_entry entries[0];
|
| 2871 |
|
|
} *repl32 = (struct ipt_replace32 *)optval;
|
| 2872 |
|
|
struct ipt_replace *krepl;
|
| 2873 |
|
|
struct ipt_counters *counters32;
|
| 2874 |
|
|
__u32 origsize;
|
| 2875 |
|
|
unsigned int kreplsize, kcountersize;
|
| 2876 |
|
|
mm_segment_t old_fs;
|
| 2877 |
|
|
int ret;
|
| 2878 |
|
|
|
| 2879 |
|
|
if (optlen < sizeof(repl32))
|
| 2880 |
|
|
return -EINVAL;
|
| 2881 |
|
|
|
| 2882 |
|
|
if (copy_from_user(&origsize,
|
| 2883 |
|
|
&repl32->size,
|
| 2884 |
|
|
sizeof(origsize)))
|
| 2885 |
|
|
return -EFAULT;
|
| 2886 |
|
|
|
| 2887 |
|
|
kreplsize = sizeof(*krepl) + origsize;
|
| 2888 |
|
|
kcountersize = krepl->num_counters * sizeof(struct ipt_counters);
|
| 2889 |
|
|
|
| 2890 |
|
|
/* Hack: Causes ipchains to give correct error msg --RR */
|
| 2891 |
|
|
if (optlen != kreplsize)
|
| 2892 |
|
|
return -ENOPROTOOPT;
|
| 2893 |
|
|
|
| 2894 |
|
|
krepl = (struct ipt_replace *)kmalloc(kreplsize, GFP_KERNEL);
|
| 2895 |
|
|
if (krepl == NULL)
|
| 2896 |
|
|
return -ENOMEM;
|
| 2897 |
|
|
|
| 2898 |
|
|
if (copy_from_user(krepl, optval, kreplsize)) {
|
| 2899 |
|
|
kfree(krepl);
|
| 2900 |
|
|
return -EFAULT;
|
| 2901 |
|
|
}
|
| 2902 |
|
|
|
| 2903 |
|
|
counters32 = (struct ipt_counters *)AA(
|
| 2904 |
|
|
((struct ipt_replace32 *)krepl)->counters);
|
| 2905 |
|
|
|
| 2906 |
|
|
kcountersize = krepl->num_counters * sizeof(struct ipt_counters);
|
| 2907 |
|
|
krepl->counters = (struct ipt_counters *)kmalloc(
|
| 2908 |
|
|
kcountersize, GFP_KERNEL);
|
| 2909 |
|
|
if (krepl->counters == NULL) {
|
| 2910 |
|
|
kfree(krepl);
|
| 2911 |
|
|
return -ENOMEM;
|
| 2912 |
|
|
}
|
| 2913 |
|
|
|
| 2914 |
|
|
old_fs = get_fs();
|
| 2915 |
|
|
set_fs(KERNEL_DS);
|
| 2916 |
|
|
ret = sys_setsockopt(fd, level, optname,
|
| 2917 |
|
|
(char *)krepl, kreplsize);
|
| 2918 |
|
|
set_fs(old_fs);
|
| 2919 |
|
|
|
| 2920 |
|
|
if (ret == 0 &&
|
| 2921 |
|
|
copy_to_user(counters32, krepl->counters, kcountersize))
|
| 2922 |
|
|
ret = -EFAULT;
|
| 2923 |
|
|
|
| 2924 |
|
|
kfree(krepl->counters);
|
| 2925 |
|
|
kfree(krepl);
|
| 2926 |
|
|
|
| 2927 |
|
|
return ret;
|
| 2928 |
|
|
}
|
| 2929 |
|
|
|
| 2930 |
|
|
static int do_set_attach_filter(int fd, int level, int optname,
|
| 2931 |
|
|
char *optval, int optlen)
|
| 2932 |
|
|
{
|
| 2933 |
|
|
struct sock_fprog32 {
|
| 2934 |
|
|
__u16 len;
|
| 2935 |
|
|
__u32 filter;
|
| 2936 |
|
|
} *fprog32 = (struct sock_fprog32 *)optval;
|
| 2937 |
|
|
struct sock_fprog kfprog;
|
| 2938 |
|
|
struct sock_filter *kfilter;
|
| 2939 |
|
|
unsigned int fsize;
|
| 2940 |
|
|
mm_segment_t old_fs;
|
| 2941 |
|
|
__u32 uptr;
|
| 2942 |
|
|
int ret;
|
| 2943 |
|
|
|
| 2944 |
|
|
if (get_user(kfprog.len, &fprog32->len) ||
|
| 2945 |
|
|
__get_user(uptr, &fprog32->filter))
|
| 2946 |
|
|
return -EFAULT;
|
| 2947 |
|
|
|
| 2948 |
|
|
kfprog.filter = (struct sock_filter *)A(uptr);
|
| 2949 |
|
|
fsize = kfprog.len * sizeof(struct sock_filter);
|
| 2950 |
|
|
|
| 2951 |
|
|
kfilter = (struct sock_filter *)kmalloc(fsize, GFP_KERNEL);
|
| 2952 |
|
|
if (kfilter == NULL)
|
| 2953 |
|
|
return -ENOMEM;
|
| 2954 |
|
|
|
| 2955 |
|
|
if (copy_from_user(kfilter, kfprog.filter, fsize)) {
|
| 2956 |
|
|
kfree(kfilter);
|
| 2957 |
|
|
return -EFAULT;
|
| 2958 |
|
|
}
|
| 2959 |
|
|
|
| 2960 |
|
|
kfprog.filter = kfilter;
|
| 2961 |
|
|
|
| 2962 |
|
|
old_fs = get_fs();
|
| 2963 |
|
|
set_fs(KERNEL_DS);
|
| 2964 |
|
|
ret = sys_setsockopt(fd, level, optname,
|
| 2965 |
|
|
(char *)&kfprog, sizeof(kfprog));
|
| 2966 |
|
|
set_fs(old_fs);
|
| 2967 |
|
|
|
| 2968 |
|
|
kfree(kfilter);
|
| 2969 |
|
|
|
| 2970 |
|
|
return ret;
|
| 2971 |
|
|
}
|
| 2972 |
|
|
|
| 2973 |
|
|
static int do_set_sock_timeout(int fd, int level, int optname, char *optval, int optlen)
|
| 2974 |
|
|
{
|
| 2975 |
|
|
struct timeval32 *up = (struct timeval32 *) optval;
|
| 2976 |
|
|
struct timeval ktime;
|
| 2977 |
|
|
mm_segment_t old_fs;
|
| 2978 |
|
|
int err;
|
| 2979 |
|
|
|
| 2980 |
|
|
if (optlen < sizeof(*up))
|
| 2981 |
|
|
return -EINVAL;
|
| 2982 |
|
|
if (get_user(ktime.tv_sec, &up->tv_sec) ||
|
| 2983 |
|
|
__get_user(ktime.tv_usec, &up->tv_usec))
|
| 2984 |
|
|
return -EFAULT;
|
| 2985 |
|
|
old_fs = get_fs();
|
| 2986 |
|
|
set_fs(KERNEL_DS);
|
| 2987 |
|
|
err = sys_setsockopt(fd, level, optname, (char *) &ktime, sizeof(ktime));
|
| 2988 |
|
|
set_fs(old_fs);
|
| 2989 |
|
|
|
| 2990 |
|
|
return err;
|
| 2991 |
|
|
}
|
| 2992 |
|
|
|
| 2993 |
|
|
asmlinkage int sys32_setsockopt(int fd, int level, int optname,
|
| 2994 |
|
|
char *optval, int optlen)
|
| 2995 |
|
|
{
|
| 2996 |
|
|
if (optname == IPT_SO_SET_REPLACE)
|
| 2997 |
|
|
return do_netfilter_replace(fd, level, optname,
|
| 2998 |
|
|
optval, optlen);
|
| 2999 |
|
|
if (optname == SO_ATTACH_FILTER)
|
| 3000 |
|
|
return do_set_attach_filter(fd, level, optname,
|
| 3001 |
|
|
optval, optlen);
|
| 3002 |
|
|
if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
|
| 3003 |
|
|
return do_set_sock_timeout(fd, level, optname, optval, optlen);
|
| 3004 |
|
|
|
| 3005 |
|
|
return sys_setsockopt(fd, level, optname, optval, optlen);
|
| 3006 |
|
|
}
|
| 3007 |
|
|
|
| 3008 |
|
|
extern asmlinkage long sys_getsockopt(int fd, int level, int optname,
|
| 3009 |
|
|
char *optval, int *optlen);
|
| 3010 |
|
|
|
| 3011 |
|
|
static int do_get_sock_timeout(int fd, int level, int optname, char *optval, int *optlen)
|
| 3012 |
|
|
{
|
| 3013 |
|
|
struct timeval32 *up = (struct timeval32 *) optval;
|
| 3014 |
|
|
struct timeval ktime;
|
| 3015 |
|
|
mm_segment_t old_fs;
|
| 3016 |
|
|
int len, err;
|
| 3017 |
|
|
|
| 3018 |
|
|
if (get_user(len, optlen))
|
| 3019 |
|
|
return -EFAULT;
|
| 3020 |
|
|
if (len < sizeof(*up))
|
| 3021 |
|
|
return -EINVAL;
|
| 3022 |
|
|
len = sizeof(ktime);
|
| 3023 |
|
|
old_fs = get_fs();
|
| 3024 |
|
|
set_fs(KERNEL_DS);
|
| 3025 |
|
|
err = sys_getsockopt(fd, level, optname, (char *) &ktime, &len);
|
| 3026 |
|
|
set_fs(old_fs);
|
| 3027 |
|
|
|
| 3028 |
|
|
if (!err) {
|
| 3029 |
|
|
if (put_user(sizeof(*up), optlen) ||
|
| 3030 |
|
|
put_user(ktime.tv_sec, &up->tv_sec) ||
|
| 3031 |
|
|
__put_user(ktime.tv_usec, &up->tv_usec))
|
| 3032 |
|
|
err = -EFAULT;
|
| 3033 |
|
|
}
|
| 3034 |
|
|
return err;
|
| 3035 |
|
|
}
|
| 3036 |
|
|
|
| 3037 |
|
|
asmlinkage int sys32_getsockopt(int fd, int level, int optname,
|
| 3038 |
|
|
char *optval, int *optlen)
|
| 3039 |
|
|
{
|
| 3040 |
|
|
if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
|
| 3041 |
|
|
return do_get_sock_timeout(fd, level, optname, optval, optlen);
|
| 3042 |
|
|
return sys_getsockopt(fd, level, optname, optval, optlen);
|
| 3043 |
|
|
}
|
| 3044 |
|
|
|
| 3045 |
|
|
extern void check_pending(int signum);
|
| 3046 |
|
|
|
| 3047 |
|
|
asmlinkage int sys32_sigaction (int sig, struct old_sigaction32 *act, struct old_sigaction32 *oact)
|
| 3048 |
|
|
{
|
| 3049 |
|
|
struct k_sigaction new_ka, old_ka;
|
| 3050 |
|
|
int ret;
|
| 3051 |
|
|
|
| 3052 |
|
|
if(sig < 0) {
|
| 3053 |
|
|
current->thread.flags |= SPARC_FLAG_NEWSIGNALS;
|
| 3054 |
|
|
sig = -sig;
|
| 3055 |
|
|
}
|
| 3056 |
|
|
|
| 3057 |
|
|
if (act) {
|
| 3058 |
|
|
old_sigset_t32 mask;
|
| 3059 |
|
|
|
| 3060 |
|
|
ret = get_user((long)new_ka.sa.sa_handler, &act->sa_handler);
|
| 3061 |
|
|
ret |= __get_user((long)new_ka.sa.sa_restorer, &act->sa_restorer);
|
| 3062 |
|
|
ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
|
| 3063 |
|
|
ret |= __get_user(mask, &act->sa_mask);
|
| 3064 |
|
|
if (ret)
|
| 3065 |
|
|
return ret;
|
| 3066 |
|
|
new_ka.ka_restorer = NULL;
|
| 3067 |
|
|
siginitset(&new_ka.sa.sa_mask, mask);
|
| 3068 |
|
|
}
|
| 3069 |
|
|
|
| 3070 |
|
|
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
|
| 3071 |
|
|
|
| 3072 |
|
|
if (!ret && oact) {
|
| 3073 |
|
|
ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
|
| 3074 |
|
|
ret |= __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer);
|
| 3075 |
|
|
ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
|
| 3076 |
|
|
ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
|
| 3077 |
|
|
}
|
| 3078 |
|
|
|
| 3079 |
|
|
return ret;
|
| 3080 |
|
|
}
|
| 3081 |
|
|
|
| 3082 |
|
|
asmlinkage int
|
| 3083 |
|
|
sys32_rt_sigaction(int sig, struct sigaction32 *act, struct sigaction32 *oact,
|
| 3084 |
|
|
void *restorer, __kernel_size_t32 sigsetsize)
|
| 3085 |
|
|
{
|
| 3086 |
|
|
struct k_sigaction new_ka, old_ka;
|
| 3087 |
|
|
int ret;
|
| 3088 |
|
|
sigset_t32 set32;
|
| 3089 |
|
|
|
| 3090 |
|
|
/* XXX: Don't preclude handling different sized sigset_t's. */
|
| 3091 |
|
|
if (sigsetsize != sizeof(sigset_t32))
|
| 3092 |
|
|
return -EINVAL;
|
| 3093 |
|
|
|
| 3094 |
|
|
/* All tasks which use RT signals (effectively) use
|
| 3095 |
|
|
* new style signals.
|
| 3096 |
|
|
*/
|
| 3097 |
|
|
current->thread.flags |= SPARC_FLAG_NEWSIGNALS;
|
| 3098 |
|
|
|
| 3099 |
|
|
if (act) {
|
| 3100 |
|
|
new_ka.ka_restorer = restorer;
|
| 3101 |
|
|
ret = get_user((long)new_ka.sa.sa_handler, &act->sa_handler);
|
| 3102 |
|
|
ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(sigset_t32));
|
| 3103 |
|
|
switch (_NSIG_WORDS) {
|
| 3104 |
|
|
case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
|
| 3105 |
|
|
case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
|
| 3106 |
|
|
case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
|
| 3107 |
|
|
case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
|
| 3108 |
|
|
}
|
| 3109 |
|
|
ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
|
| 3110 |
|
|
ret |= __get_user((long)new_ka.sa.sa_restorer, &act->sa_restorer);
|
| 3111 |
|
|
if (ret)
|
| 3112 |
|
|
return -EFAULT;
|
| 3113 |
|
|
}
|
| 3114 |
|
|
|
| 3115 |
|
|
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
|
| 3116 |
|
|
|
| 3117 |
|
|
if (!ret && oact) {
|
| 3118 |
|
|
switch (_NSIG_WORDS) {
|
| 3119 |
|
|
case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
|
| 3120 |
|
|
case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
|
| 3121 |
|
|
case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
|
| 3122 |
|
|
case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
|
| 3123 |
|
|
}
|
| 3124 |
|
|
ret = put_user((long)old_ka.sa.sa_handler, &oact->sa_handler);
|
| 3125 |
|
|
ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(sigset_t32));
|
| 3126 |
|
|
ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
|
| 3127 |
|
|
ret |= __put_user((long)old_ka.sa.sa_restorer, &oact->sa_restorer);
|
| 3128 |
|
|
if (ret)
|
| 3129 |
|
|
ret = -EFAULT;
|
| 3130 |
|
|
}
|
| 3131 |
|
|
|
| 3132 |
|
|
return ret;
|
| 3133 |
|
|
}
|
| 3134 |
|
|
|
| 3135 |
|
|
|
| 3136 |
|
|
/*
|
| 3137 |
|
|
* count32() counts the number of arguments/envelopes
|
| 3138 |
|
|
*/
|
| 3139 |
|
|
static int count32(u32 * argv, int max)
|
| 3140 |
|
|
{
|
| 3141 |
|
|
int i = 0;
|
| 3142 |
|
|
|
| 3143 |
|
|
if (argv != NULL) {
|
| 3144 |
|
|
for (;;) {
|
| 3145 |
|
|
u32 p; int error;
|
| 3146 |
|
|
|
| 3147 |
|
|
error = get_user(p,argv);
|
| 3148 |
|
|
if (error)
|
| 3149 |
|
|
return error;
|
| 3150 |
|
|
if (!p)
|
| 3151 |
|
|
break;
|
| 3152 |
|
|
argv++;
|
| 3153 |
|
|
if (++i > max)
|
| 3154 |
|
|
return -E2BIG;
|
| 3155 |
|
|
}
|
| 3156 |
|
|
}
|
| 3157 |
|
|
return i;
|
| 3158 |
|
|
}
|
| 3159 |
|
|
|
| 3160 |
|
|
/*
|
| 3161 |
|
|
* 'copy_string32()' copies argument/envelope strings from user
|
| 3162 |
|
|
* memory to free pages in kernel mem. These are in a format ready
|
| 3163 |
|
|
* to be put directly into the top of new user memory.
|
| 3164 |
|
|
*/
|
| 3165 |
|
|
static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
|
| 3166 |
|
|
{
|
| 3167 |
|
|
while (argc-- > 0) {
|
| 3168 |
|
|
u32 str;
|
| 3169 |
|
|
int len;
|
| 3170 |
|
|
unsigned long pos;
|
| 3171 |
|
|
|
| 3172 |
|
|
if (get_user(str, argv + argc) ||
|
| 3173 |
|
|
!str ||
|
| 3174 |
|
|
!(len = strnlen_user((char *)A(str), bprm->p)))
|
| 3175 |
|
|
return -EFAULT;
|
| 3176 |
|
|
|
| 3177 |
|
|
if (bprm->p < len)
|
| 3178 |
|
|
return -E2BIG;
|
| 3179 |
|
|
|
| 3180 |
|
|
bprm->p -= len;
|
| 3181 |
|
|
|
| 3182 |
|
|
pos = bprm->p;
|
| 3183 |
|
|
while (len) {
|
| 3184 |
|
|
char *kaddr;
|
| 3185 |
|
|
struct page *page;
|
| 3186 |
|
|
int offset, bytes_to_copy, new, err;
|
| 3187 |
|
|
|
| 3188 |
|
|
offset = pos % PAGE_SIZE;
|
| 3189 |
|
|
page = bprm->page[pos / PAGE_SIZE];
|
| 3190 |
|
|
new = 0;
|
| 3191 |
|
|
if (!page) {
|
| 3192 |
|
|
page = alloc_page(GFP_USER);
|
| 3193 |
|
|
bprm->page[pos / PAGE_SIZE] = page;
|
| 3194 |
|
|
if (!page)
|
| 3195 |
|
|
return -ENOMEM;
|
| 3196 |
|
|
new = 1;
|
| 3197 |
|
|
}
|
| 3198 |
|
|
kaddr = kmap(page);
|
| 3199 |
|
|
|
| 3200 |
|
|
if (new && offset)
|
| 3201 |
|
|
memset(kaddr, 0, offset);
|
| 3202 |
|
|
bytes_to_copy = PAGE_SIZE - offset;
|
| 3203 |
|
|
if (bytes_to_copy > len) {
|
| 3204 |
|
|
bytes_to_copy = len;
|
| 3205 |
|
|
if (new)
|
| 3206 |
|
|
memset(kaddr+offset+len, 0,
|
| 3207 |
|
|
PAGE_SIZE-offset-len);
|
| 3208 |
|
|
}
|
| 3209 |
|
|
|
| 3210 |
|
|
err = copy_from_user(kaddr + offset, (char *)A(str),
|
| 3211 |
|
|
bytes_to_copy);
|
| 3212 |
|
|
kunmap(page);
|
| 3213 |
|
|
|
| 3214 |
|
|
if (err)
|
| 3215 |
|
|
return -EFAULT;
|
| 3216 |
|
|
|
| 3217 |
|
|
pos += bytes_to_copy;
|
| 3218 |
|
|
str += bytes_to_copy;
|
| 3219 |
|
|
len -= bytes_to_copy;
|
| 3220 |
|
|
}
|
| 3221 |
|
|
}
|
| 3222 |
|
|
return 0;
|
| 3223 |
|
|
}
|
| 3224 |
|
|
|
| 3225 |
|
|
/*
|
| 3226 |
|
|
* sys32_execve() executes a new program.
|
| 3227 |
|
|
*/
|
| 3228 |
|
|
static inline int
|
| 3229 |
|
|
do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
|
| 3230 |
|
|
{
|
| 3231 |
|
|
struct linux_binprm bprm;
|
| 3232 |
|
|
struct file * file;
|
| 3233 |
|
|
int retval;
|
| 3234 |
|
|
int i;
|
| 3235 |
|
|
|
| 3236 |
|
|
bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
|
| 3237 |
|
|
memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
|
| 3238 |
|
|
|
| 3239 |
|
|
file = open_exec(filename);
|
| 3240 |
|
|
|
| 3241 |
|
|
retval = PTR_ERR(file);
|
| 3242 |
|
|
if (IS_ERR(file))
|
| 3243 |
|
|
return retval;
|
| 3244 |
|
|
|
| 3245 |
|
|
bprm.file = file;
|
| 3246 |
|
|
bprm.filename = filename;
|
| 3247 |
|
|
bprm.sh_bang = 0;
|
| 3248 |
|
|
bprm.loader = 0;
|
| 3249 |
|
|
bprm.exec = 0;
|
| 3250 |
|
|
if ((bprm.argc = count32(argv, bprm.p / sizeof(u32))) < 0) {
|
| 3251 |
|
|
allow_write_access(file);
|
| 3252 |
|
|
fput(file);
|
| 3253 |
|
|
return bprm.argc;
|
| 3254 |
|
|
}
|
| 3255 |
|
|
if ((bprm.envc = count32(envp, bprm.p / sizeof(u32))) < 0) {
|
| 3256 |
|
|
allow_write_access(file);
|
| 3257 |
|
|
fput(file);
|
| 3258 |
|
|
return bprm.envc;
|
| 3259 |
|
|
}
|
| 3260 |
|
|
|
| 3261 |
|
|
retval = prepare_binprm(&bprm);
|
| 3262 |
|
|
if (retval < 0)
|
| 3263 |
|
|
goto out;
|
| 3264 |
|
|
|
| 3265 |
|
|
retval = copy_strings_kernel(1, &bprm.filename, &bprm);
|
| 3266 |
|
|
if (retval < 0)
|
| 3267 |
|
|
goto out;
|
| 3268 |
|
|
|
| 3269 |
|
|
bprm.exec = bprm.p;
|
| 3270 |
|
|
retval = copy_strings32(bprm.envc, envp, &bprm);
|
| 3271 |
|
|
if (retval < 0)
|
| 3272 |
|
|
goto out;
|
| 3273 |
|
|
|
| 3274 |
|
|
retval = copy_strings32(bprm.argc, argv, &bprm);
|
| 3275 |
|
|
if (retval < 0)
|
| 3276 |
|
|
goto out;
|
| 3277 |
|
|
|
| 3278 |
|
|
retval = search_binary_handler(&bprm, regs);
|
| 3279 |
|
|
if (retval >= 0)
|
| 3280 |
|
|
/* execve success */
|
| 3281 |
|
|
return retval;
|
| 3282 |
|
|
|
| 3283 |
|
|
out:
|
| 3284 |
|
|
/* Something went wrong, return the inode and free the argument pages*/
|
| 3285 |
|
|
allow_write_access(bprm.file);
|
| 3286 |
|
|
if (bprm.file)
|
| 3287 |
|
|
fput(bprm.file);
|
| 3288 |
|
|
|
| 3289 |
|
|
for (i=0 ; i<MAX_ARG_PAGES ; i++)
|
| 3290 |
|
|
if (bprm.page[i])
|
| 3291 |
|
|
__free_page(bprm.page[i]);
|
| 3292 |
|
|
|
| 3293 |
|
|
return retval;
|
| 3294 |
|
|
}
|
| 3295 |
|
|
|
| 3296 |
|
|
/*
|
| 3297 |
|
|
* sparc32_execve() executes a new program after the asm stub has set
|
| 3298 |
|
|
* things up for us. This should basically do what I want it to.
|
| 3299 |
|
|
*/
|
| 3300 |
|
|
asmlinkage int sparc32_execve(struct pt_regs *regs)
|
| 3301 |
|
|
{
|
| 3302 |
|
|
int error, base = 0;
|
| 3303 |
|
|
char *filename;
|
| 3304 |
|
|
|
| 3305 |
|
|
/* User register window flush is done by entry.S */
|
| 3306 |
|
|
|
| 3307 |
|
|
/* Check for indirect call. */
|
| 3308 |
|
|
if((u32)regs->u_regs[UREG_G1] == 0)
|
| 3309 |
|
|
base = 1;
|
| 3310 |
|
|
|
| 3311 |
|
|
filename = getname((char *)AA(regs->u_regs[base + UREG_I0]));
|
| 3312 |
|
|
error = PTR_ERR(filename);
|
| 3313 |
|
|
if(IS_ERR(filename))
|
| 3314 |
|
|
goto out;
|
| 3315 |
|
|
error = do_execve32(filename,
|
| 3316 |
|
|
(u32 *)AA((u32)regs->u_regs[base + UREG_I1]),
|
| 3317 |
|
|
(u32 *)AA((u32)regs->u_regs[base + UREG_I2]), regs);
|
| 3318 |
|
|
putname(filename);
|
| 3319 |
|
|
|
| 3320 |
|
|
if(!error) {
|
| 3321 |
|
|
fprs_write(0);
|
| 3322 |
|
|
current->thread.xfsr[0] = 0;
|
| 3323 |
|
|
current->thread.fpsaved[0] = 0;
|
| 3324 |
|
|
regs->tstate &= ~TSTATE_PEF;
|
| 3325 |
|
|
}
|
| 3326 |
|
|
out:
|
| 3327 |
|
|
return error;
|
| 3328 |
|
|
}
|
| 3329 |
|
|
|
| 3330 |
|
|
#ifdef CONFIG_MODULES
|
| 3331 |
|
|
|
| 3332 |
|
|
extern asmlinkage unsigned long sys_create_module(const char *name_user, size_t size);
|
| 3333 |
|
|
|
| 3334 |
|
|
asmlinkage unsigned long sys32_create_module(const char *name_user, __kernel_size_t32 size)
|
| 3335 |
|
|
{
|
| 3336 |
|
|
return sys_create_module(name_user, (size_t)size);
|
| 3337 |
|
|
}
|
| 3338 |
|
|
|
| 3339 |
|
|
extern asmlinkage int sys_init_module(const char *name_user, struct module *mod_user);
|
| 3340 |
|
|
|
| 3341 |
|
|
/* Hey, when you're trying to init module, take time and prepare us a nice 64bit
|
| 3342 |
|
|
* module structure, even if from 32bit modutils... Why to pollute kernel... :))
|
| 3343 |
|
|
*/
|
| 3344 |
|
|
asmlinkage int sys32_init_module(const char *name_user, struct module *mod_user)
|
| 3345 |
|
|
{
|
| 3346 |
|
|
return sys_init_module(name_user, mod_user);
|
| 3347 |
|
|
}
|
| 3348 |
|
|
|
| 3349 |
|
|
extern asmlinkage int sys_delete_module(const char *name_user);
|
| 3350 |
|
|
|
| 3351 |
|
|
asmlinkage int sys32_delete_module(const char *name_user)
|
| 3352 |
|
|
{
|
| 3353 |
|
|
return sys_delete_module(name_user);
|
| 3354 |
|
|
}
|
| 3355 |
|
|
|
| 3356 |
|
|
struct module_info32 {
|
| 3357 |
|
|
u32 addr;
|
| 3358 |
|
|
u32 size;
|
| 3359 |
|
|
u32 flags;
|
| 3360 |
|
|
s32 usecount;
|
| 3361 |
|
|
};
|
| 3362 |
|
|
|
| 3363 |
|
|
/* Query various bits about modules. */
|
| 3364 |
|
|
|
| 3365 |
|
|
static inline long
|
| 3366 |
|
|
get_mod_name(const char *user_name, char **buf)
|
| 3367 |
|
|
{
|
| 3368 |
|
|
unsigned long page;
|
| 3369 |
|
|
long retval;
|
| 3370 |
|
|
|
| 3371 |
|
|
if ((unsigned long)user_name >= TASK_SIZE
|
| 3372 |
|
|
&& !segment_eq(get_fs (), KERNEL_DS))
|
| 3373 |
|
|
return -EFAULT;
|
| 3374 |
|
|
|
| 3375 |
|
|
page = __get_free_page(GFP_KERNEL);
|
| 3376 |
|
|
if (!page)
|
| 3377 |
|
|
return -ENOMEM;
|
| 3378 |
|
|
|
| 3379 |
|
|
retval = strncpy_from_user((char *)page, user_name, PAGE_SIZE);
|
| 3380 |
|
|
if (retval > 0) {
|
| 3381 |
|
|
if (retval < PAGE_SIZE) {
|
| 3382 |
|
|
*buf = (char *)page;
|
| 3383 |
|
|
return retval;
|
| 3384 |
|
|
}
|
| 3385 |
|
|
retval = -ENAMETOOLONG;
|
| 3386 |
|
|
} else if (!retval)
|
| 3387 |
|
|
retval = -EINVAL;
|
| 3388 |
|
|
|
| 3389 |
|
|
free_page(page);
|
| 3390 |
|
|
return retval;
|
| 3391 |
|
|
}
|
| 3392 |
|
|
|
| 3393 |
|
|
static inline void
|
| 3394 |
|
|
put_mod_name(char *buf)
|
| 3395 |
|
|
{
|
| 3396 |
|
|
free_page((unsigned long)buf);
|
| 3397 |
|
|
}
|
| 3398 |
|
|
|
| 3399 |
|
|
static __inline__ struct module *find_module(const char *name)
|
| 3400 |
|
|
{
|
| 3401 |
|
|
struct module *mod;
|
| 3402 |
|
|
|
| 3403 |
|
|
for (mod = module_list; mod ; mod = mod->next) {
|
| 3404 |
|
|
if (mod->flags & MOD_DELETED)
|
| 3405 |
|
|
continue;
|
| 3406 |
|
|
if (!strcmp(mod->name, name))
|
| 3407 |
|
|
break;
|
| 3408 |
|
|
}
|
| 3409 |
|
|
|
| 3410 |
|
|
return mod;
|
| 3411 |
|
|
}
|
| 3412 |
|
|
|
| 3413 |
|
|
static int
|
| 3414 |
|
|
qm_modules(char *buf, size_t bufsize, __kernel_size_t32 *ret)
|
| 3415 |
|
|
{
|
| 3416 |
|
|
struct module *mod;
|
| 3417 |
|
|
size_t nmod, space, len;
|
| 3418 |
|
|
|
| 3419 |
|
|
nmod = space = 0;
|
| 3420 |
|
|
|
| 3421 |
|
|
for (mod = module_list; mod->next != NULL; mod = mod->next, ++nmod) {
|
| 3422 |
|
|
len = strlen(mod->name)+1;
|
| 3423 |
|
|
if (len > bufsize)
|
| 3424 |
|
|
goto calc_space_needed;
|
| 3425 |
|
|
if (copy_to_user(buf, mod->name, len))
|
| 3426 |
|
|
return -EFAULT;
|
| 3427 |
|
|
buf += len;
|
| 3428 |
|
|
bufsize -= len;
|
| 3429 |
|
|
space += len;
|
| 3430 |
|
|
}
|
| 3431 |
|
|
|
| 3432 |
|
|
if (put_user(nmod, ret))
|
| 3433 |
|
|
return -EFAULT;
|
| 3434 |
|
|
else
|
| 3435 |
|
|
return 0;
|
| 3436 |
|
|
|
| 3437 |
|
|
calc_space_needed:
|
| 3438 |
|
|
space += len;
|
| 3439 |
|
|
while ((mod = mod->next)->next != NULL)
|
| 3440 |
|
|
space += strlen(mod->name)+1;
|
| 3441 |
|
|
|
| 3442 |
|
|
if (put_user(space, ret))
|
| 3443 |
|
|
return -EFAULT;
|
| 3444 |
|
|
else
|
| 3445 |
|
|
return -ENOSPC;
|
| 3446 |
|
|
}
|
| 3447 |
|
|
|
| 3448 |
|
|
static int
|
| 3449 |
|
|
qm_deps(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
|
| 3450 |
|
|
{
|
| 3451 |
|
|
size_t i, space, len;
|
| 3452 |
|
|
|
| 3453 |
|
|
if (mod->next == NULL)
|
| 3454 |
|
|
return -EINVAL;
|
| 3455 |
|
|
if (!MOD_CAN_QUERY(mod))
|
| 3456 |
|
|
return put_user(0, ret);
|
| 3457 |
|
|
|
| 3458 |
|
|
space = 0;
|
| 3459 |
|
|
for (i = 0; i < mod->ndeps; ++i) {
|
| 3460 |
|
|
const char *dep_name = mod->deps[i].dep->name;
|
| 3461 |
|
|
|
| 3462 |
|
|
len = strlen(dep_name)+1;
|
| 3463 |
|
|
if (len > bufsize)
|
| 3464 |
|
|
goto calc_space_needed;
|
| 3465 |
|
|
if (copy_to_user(buf, dep_name, len))
|
| 3466 |
|
|
return -EFAULT;
|
| 3467 |
|
|
buf += len;
|
| 3468 |
|
|
bufsize -= len;
|
| 3469 |
|
|
space += len;
|
| 3470 |
|
|
}
|
| 3471 |
|
|
|
| 3472 |
|
|
return put_user(i, ret);
|
| 3473 |
|
|
|
| 3474 |
|
|
calc_space_needed:
|
| 3475 |
|
|
space += len;
|
| 3476 |
|
|
while (++i < mod->ndeps)
|
| 3477 |
|
|
space += strlen(mod->deps[i].dep->name)+1;
|
| 3478 |
|
|
|
| 3479 |
|
|
if (put_user(space, ret))
|
| 3480 |
|
|
return -EFAULT;
|
| 3481 |
|
|
else
|
| 3482 |
|
|
return -ENOSPC;
|
| 3483 |
|
|
}
|
| 3484 |
|
|
|
| 3485 |
|
|
static int
|
| 3486 |
|
|
qm_refs(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
|
| 3487 |
|
|
{
|
| 3488 |
|
|
size_t nrefs, space, len;
|
| 3489 |
|
|
struct module_ref *ref;
|
| 3490 |
|
|
|
| 3491 |
|
|
if (mod->next == NULL)
|
| 3492 |
|
|
return -EINVAL;
|
| 3493 |
|
|
if (!MOD_CAN_QUERY(mod))
|
| 3494 |
|
|
if (put_user(0, ret))
|
| 3495 |
|
|
return -EFAULT;
|
| 3496 |
|
|
else
|
| 3497 |
|
|
return 0;
|
| 3498 |
|
|
|
| 3499 |
|
|
space = 0;
|
| 3500 |
|
|
for (nrefs = 0, ref = mod->refs; ref ; ++nrefs, ref = ref->next_ref) {
|
| 3501 |
|
|
const char *ref_name = ref->ref->name;
|
| 3502 |
|
|
|
| 3503 |
|
|
len = strlen(ref_name)+1;
|
| 3504 |
|
|
if (len > bufsize)
|
| 3505 |
|
|
goto calc_space_needed;
|
| 3506 |
|
|
if (copy_to_user(buf, ref_name, len))
|
| 3507 |
|
|
return -EFAULT;
|
| 3508 |
|
|
buf += len;
|
| 3509 |
|
|
bufsize -= len;
|
| 3510 |
|
|
space += len;
|
| 3511 |
|
|
}
|
| 3512 |
|
|
|
| 3513 |
|
|
if (put_user(nrefs, ret))
|
| 3514 |
|
|
return -EFAULT;
|
| 3515 |
|
|
else
|
| 3516 |
|
|
return 0;
|
| 3517 |
|
|
|
| 3518 |
|
|
calc_space_needed:
|
| 3519 |
|
|
space += len;
|
| 3520 |
|
|
while ((ref = ref->next_ref) != NULL)
|
| 3521 |
|
|
space += strlen(ref->ref->name)+1;
|
| 3522 |
|
|
|
| 3523 |
|
|
if (put_user(space, ret))
|
| 3524 |
|
|
return -EFAULT;
|
| 3525 |
|
|
else
|
| 3526 |
|
|
return -ENOSPC;
|
| 3527 |
|
|
}
|
| 3528 |
|
|
|
| 3529 |
|
|
static inline int
|
| 3530 |
|
|
qm_symbols(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
|
| 3531 |
|
|
{
|
| 3532 |
|
|
size_t i, space, len;
|
| 3533 |
|
|
struct module_symbol *s;
|
| 3534 |
|
|
char *strings;
|
| 3535 |
|
|
unsigned *vals;
|
| 3536 |
|
|
|
| 3537 |
|
|
if (!MOD_CAN_QUERY(mod))
|
| 3538 |
|
|
if (put_user(0, ret))
|
| 3539 |
|
|
return -EFAULT;
|
| 3540 |
|
|
else
|
| 3541 |
|
|
return 0;
|
| 3542 |
|
|
|
| 3543 |
|
|
space = mod->nsyms * 2*sizeof(u32);
|
| 3544 |
|
|
|
| 3545 |
|
|
i = len = 0;
|
| 3546 |
|
|
s = mod->syms;
|
| 3547 |
|
|
|
| 3548 |
|
|
if (space > bufsize)
|
| 3549 |
|
|
goto calc_space_needed;
|
| 3550 |
|
|
|
| 3551 |
|
|
if (!access_ok(VERIFY_WRITE, buf, space))
|
| 3552 |
|
|
return -EFAULT;
|
| 3553 |
|
|
|
| 3554 |
|
|
bufsize -= space;
|
| 3555 |
|
|
vals = (unsigned *)buf;
|
| 3556 |
|
|
strings = buf+space;
|
| 3557 |
|
|
|
| 3558 |
|
|
for (; i < mod->nsyms ; ++i, ++s, vals += 2) {
|
| 3559 |
|
|
len = strlen(s->name)+1;
|
| 3560 |
|
|
if (len > bufsize)
|
| 3561 |
|
|
goto calc_space_needed;
|
| 3562 |
|
|
|
| 3563 |
|
|
if (copy_to_user(strings, s->name, len)
|
| 3564 |
|
|
|| __put_user(s->value, vals+0)
|
| 3565 |
|
|
|| __put_user(space, vals+1))
|
| 3566 |
|
|
return -EFAULT;
|
| 3567 |
|
|
|
| 3568 |
|
|
strings += len;
|
| 3569 |
|
|
bufsize -= len;
|
| 3570 |
|
|
space += len;
|
| 3571 |
|
|
}
|
| 3572 |
|
|
|
| 3573 |
|
|
if (put_user(i, ret))
|
| 3574 |
|
|
return -EFAULT;
|
| 3575 |
|
|
else
|
| 3576 |
|
|
return 0;
|
| 3577 |
|
|
|
| 3578 |
|
|
calc_space_needed:
|
| 3579 |
|
|
for (; i < mod->nsyms; ++i, ++s)
|
| 3580 |
|
|
space += strlen(s->name)+1;
|
| 3581 |
|
|
|
| 3582 |
|
|
if (put_user(space, ret))
|
| 3583 |
|
|
return -EFAULT;
|
| 3584 |
|
|
else
|
| 3585 |
|
|
return -ENOSPC;
|
| 3586 |
|
|
}
|
| 3587 |
|
|
|
| 3588 |
|
|
static inline int
|
| 3589 |
|
|
qm_info(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
|
| 3590 |
|
|
{
|
| 3591 |
|
|
int error = 0;
|
| 3592 |
|
|
|
| 3593 |
|
|
if (mod->next == NULL)
|
| 3594 |
|
|
return -EINVAL;
|
| 3595 |
|
|
|
| 3596 |
|
|
if (sizeof(struct module_info32) <= bufsize) {
|
| 3597 |
|
|
struct module_info32 info;
|
| 3598 |
|
|
info.addr = (unsigned long)mod;
|
| 3599 |
|
|
info.size = mod->size;
|
| 3600 |
|
|
info.flags = mod->flags;
|
| 3601 |
|
|
info.usecount =
|
| 3602 |
|
|
((mod_member_present(mod, can_unload)
|
| 3603 |
|
|
&& mod->can_unload)
|
| 3604 |
|
|
? -1 : atomic_read(&mod->uc.usecount));
|
| 3605 |
|
|
|
| 3606 |
|
|
if (copy_to_user(buf, &info, sizeof(struct module_info32)))
|
| 3607 |
|
|
return -EFAULT;
|
| 3608 |
|
|
} else
|
| 3609 |
|
|
error = -ENOSPC;
|
| 3610 |
|
|
|
| 3611 |
|
|
if (put_user(sizeof(struct module_info32), ret))
|
| 3612 |
|
|
return -EFAULT;
|
| 3613 |
|
|
|
| 3614 |
|
|
return error;
|
| 3615 |
|
|
}
|
| 3616 |
|
|
|
| 3617 |
|
|
asmlinkage int sys32_query_module(char *name_user, int which, char *buf, __kernel_size_t32 bufsize, u32 ret)
|
| 3618 |
|
|
{
|
| 3619 |
|
|
struct module *mod;
|
| 3620 |
|
|
int err;
|
| 3621 |
|
|
|
| 3622 |
|
|
lock_kernel();
|
| 3623 |
|
|
if (name_user == 0) {
|
| 3624 |
|
|
/* This finds "kernel_module" which is not exported. */
|
| 3625 |
|
|
for(mod = module_list; mod->next != NULL; mod = mod->next)
|
| 3626 |
|
|
;
|
| 3627 |
|
|
} else {
|
| 3628 |
|
|
long namelen;
|
| 3629 |
|
|
char *name;
|
| 3630 |
|
|
|
| 3631 |
|
|
if ((namelen = get_mod_name(name_user, &name)) < 0) {
|
| 3632 |
|
|
err = namelen;
|
| 3633 |
|
|
goto out;
|
| 3634 |
|
|
}
|
| 3635 |
|
|
err = -ENOENT;
|
| 3636 |
|
|
if (namelen == 0) {
|
| 3637 |
|
|
/* This finds "kernel_module" which is not exported. */
|
| 3638 |
|
|
for(mod = module_list; mod->next != NULL; mod = mod->next)
|
| 3639 |
|
|
;
|
| 3640 |
|
|
} else if ((mod = find_module(name)) == NULL) {
|
| 3641 |
|
|
put_mod_name(name);
|
| 3642 |
|
|
goto out;
|
| 3643 |
|
|
}
|
| 3644 |
|
|
put_mod_name(name);
|
| 3645 |
|
|
}
|
| 3646 |
|
|
|
| 3647 |
|
|
switch (which)
|
| 3648 |
|
|
{
|
| 3649 |
|
|
case 0:
|
| 3650 |
|
|
err = 0;
|
| 3651 |
|
|
break;
|
| 3652 |
|
|
case QM_MODULES:
|
| 3653 |
|
|
err = qm_modules(buf, bufsize, (__kernel_size_t32 *)AA(ret));
|
| 3654 |
|
|
break;
|
| 3655 |
|
|
case QM_DEPS:
|
| 3656 |
|
|
err = qm_deps(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
|
| 3657 |
|
|
break;
|
| 3658 |
|
|
case QM_REFS:
|
| 3659 |
|
|
err = qm_refs(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
|
| 3660 |
|
|
break;
|
| 3661 |
|
|
case QM_SYMBOLS:
|
| 3662 |
|
|
err = qm_symbols(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
|
| 3663 |
|
|
break;
|
| 3664 |
|
|
case QM_INFO:
|
| 3665 |
|
|
err = qm_info(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
|
| 3666 |
|
|
break;
|
| 3667 |
|
|
default:
|
| 3668 |
|
|
err = -EINVAL;
|
| 3669 |
|
|
break;
|
| 3670 |
|
|
}
|
| 3671 |
|
|
out:
|
| 3672 |
|
|
unlock_kernel();
|
| 3673 |
|
|
return err;
|
| 3674 |
|
|
}
|
| 3675 |
|
|
|
| 3676 |
|
|
struct kernel_sym32 {
|
| 3677 |
|
|
u32 value;
|
| 3678 |
|
|
char name[60];
|
| 3679 |
|
|
};
|
| 3680 |
|
|
|
| 3681 |
|
|
extern asmlinkage int sys_get_kernel_syms(struct kernel_sym *table);
|
| 3682 |
|
|
|
| 3683 |
|
|
asmlinkage int sys32_get_kernel_syms(struct kernel_sym32 *table)
|
| 3684 |
|
|
{
|
| 3685 |
|
|
int len, i;
|
| 3686 |
|
|
struct kernel_sym *tbl;
|
| 3687 |
|
|
mm_segment_t old_fs;
|
| 3688 |
|
|
|
| 3689 |
|
|
len = sys_get_kernel_syms(NULL);
|
| 3690 |
|
|
if (!table) return len;
|
| 3691 |
|
|
tbl = kmalloc (len * sizeof (struct kernel_sym), GFP_KERNEL);
|
| 3692 |
|
|
if (!tbl) return -ENOMEM;
|
| 3693 |
|
|
old_fs = get_fs();
|
| 3694 |
|
|
set_fs (KERNEL_DS);
|
| 3695 |
|
|
sys_get_kernel_syms(tbl);
|
| 3696 |
|
|
set_fs (old_fs);
|
| 3697 |
|
|
for (i = 0; i < len; i++, table++) {
|
| 3698 |
|
|
if (put_user (tbl[i].value, &table->value) ||
|
| 3699 |
|
|
copy_to_user (table->name, tbl[i].name, 60))
|
| 3700 |
|
|
break;
|
| 3701 |
|
|
}
|
| 3702 |
|
|
kfree (tbl);
|
| 3703 |
|
|
return i;
|
| 3704 |
|
|
}
|
| 3705 |
|
|
|
| 3706 |
|
|
#else /* CONFIG_MODULES */
|
| 3707 |
|
|
|
| 3708 |
|
|
asmlinkage unsigned long
|
| 3709 |
|
|
sys32_create_module(const char *name_user, size_t size)
|
| 3710 |
|
|
{
|
| 3711 |
|
|
return -ENOSYS;
|
| 3712 |
|
|
}
|
| 3713 |
|
|
|
| 3714 |
|
|
asmlinkage int
|
| 3715 |
|
|
sys32_init_module(const char *name_user, struct module *mod_user)
|
| 3716 |
|
|
{
|
| 3717 |
|
|
return -ENOSYS;
|
| 3718 |
|
|
}
|
| 3719 |
|
|
|
| 3720 |
|
|
asmlinkage int
|
| 3721 |
|
|
sys32_delete_module(const char *name_user)
|
| 3722 |
|
|
{
|
| 3723 |
|
|
return -ENOSYS;
|
| 3724 |
|
|
}
|
| 3725 |
|
|
|
| 3726 |
|
|
asmlinkage int
|
| 3727 |
|
|
sys32_query_module(const char *name_user, int which, char *buf, size_t bufsize,
|
| 3728 |
|
|
size_t *ret)
|
| 3729 |
|
|
{
|
| 3730 |
|
|
/* Let the program know about the new interface. Not that
|
| 3731 |
|
|
it'll do them much good. */
|
| 3732 |
|
|
if (which == 0)
|
| 3733 |
|
|
return 0;
|
| 3734 |
|
|
|
| 3735 |
|
|
return -ENOSYS;
|
| 3736 |
|
|
}
|
| 3737 |
|
|
|
| 3738 |
|
|
asmlinkage int
|
| 3739 |
|
|
sys32_get_kernel_syms(struct kernel_sym *table)
|
| 3740 |
|
|
{
|
| 3741 |
|
|
return -ENOSYS;
|
| 3742 |
|
|
}
|
| 3743 |
|
|
|
| 3744 |
|
|
#endif /* CONFIG_MODULES */
|
| 3745 |
|
|
|
| 3746 |
|
|
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
|
| 3747 |
|
|
/* Stuff for NFS server syscalls... */
|
| 3748 |
|
|
struct nfsctl_svc32 {
|
| 3749 |
|
|
u16 svc32_port;
|
| 3750 |
|
|
s32 svc32_nthreads;
|
| 3751 |
|
|
};
|
| 3752 |
|
|
|
| 3753 |
|
|
struct nfsctl_client32 {
|
| 3754 |
|
|
s8 cl32_ident[NFSCLNT_IDMAX+1];
|
| 3755 |
|
|
s32 cl32_naddr;
|
| 3756 |
|
|
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
|
| 3757 |
|
|
s32 cl32_fhkeytype;
|
| 3758 |
|
|
s32 cl32_fhkeylen;
|
| 3759 |
|
|
u8 cl32_fhkey[NFSCLNT_KEYMAX];
|
| 3760 |
|
|
};
|
| 3761 |
|
|
|
| 3762 |
|
|
struct nfsctl_export32 {
|
| 3763 |
|
|
s8 ex32_client[NFSCLNT_IDMAX+1];
|
| 3764 |
|
|
s8 ex32_path[NFS_MAXPATHLEN+1];
|
| 3765 |
|
|
__kernel_dev_t32 ex32_dev;
|
| 3766 |
|
|
__kernel_ino_t32 ex32_ino;
|
| 3767 |
|
|
s32 ex32_flags;
|
| 3768 |
|
|
__kernel_uid_t32 ex32_anon_uid;
|
| 3769 |
|
|
__kernel_gid_t32 ex32_anon_gid;
|
| 3770 |
|
|
};
|
| 3771 |
|
|
|
| 3772 |
|
|
struct nfsctl_uidmap32 {
|
| 3773 |
|
|
u32 ug32_ident; /* char * */
|
| 3774 |
|
|
__kernel_uid_t32 ug32_uidbase;
|
| 3775 |
|
|
s32 ug32_uidlen;
|
| 3776 |
|
|
u32 ug32_udimap; /* uid_t * */
|
| 3777 |
|
|
__kernel_uid_t32 ug32_gidbase;
|
| 3778 |
|
|
s32 ug32_gidlen;
|
| 3779 |
|
|
u32 ug32_gdimap; /* gid_t * */
|
| 3780 |
|
|
};
|
| 3781 |
|
|
|
| 3782 |
|
|
struct nfsctl_fhparm32 {
|
| 3783 |
|
|
struct sockaddr gf32_addr;
|
| 3784 |
|
|
__kernel_dev_t32 gf32_dev;
|
| 3785 |
|
|
__kernel_ino_t32 gf32_ino;
|
| 3786 |
|
|
s32 gf32_version;
|
| 3787 |
|
|
};
|
| 3788 |
|
|
|
| 3789 |
|
|
struct nfsctl_fdparm32 {
|
| 3790 |
|
|
struct sockaddr gd32_addr;
|
| 3791 |
|
|
s8 gd32_path[NFS_MAXPATHLEN+1];
|
| 3792 |
|
|
s32 gd32_version;
|
| 3793 |
|
|
};
|
| 3794 |
|
|
|
| 3795 |
|
|
struct nfsctl_fsparm32 {
|
| 3796 |
|
|
struct sockaddr gd32_addr;
|
| 3797 |
|
|
s8 gd32_path[NFS_MAXPATHLEN+1];
|
| 3798 |
|
|
s32 gd32_maxlen;
|
| 3799 |
|
|
};
|
| 3800 |
|
|
|
| 3801 |
|
|
struct nfsctl_arg32 {
|
| 3802 |
|
|
s32 ca32_version; /* safeguard */
|
| 3803 |
|
|
union {
|
| 3804 |
|
|
struct nfsctl_svc32 u32_svc;
|
| 3805 |
|
|
struct nfsctl_client32 u32_client;
|
| 3806 |
|
|
struct nfsctl_export32 u32_export;
|
| 3807 |
|
|
struct nfsctl_uidmap32 u32_umap;
|
| 3808 |
|
|
struct nfsctl_fhparm32 u32_getfh;
|
| 3809 |
|
|
struct nfsctl_fdparm32 u32_getfd;
|
| 3810 |
|
|
struct nfsctl_fsparm32 u32_getfs;
|
| 3811 |
|
|
} u;
|
| 3812 |
|
|
#define ca32_svc u.u32_svc
|
| 3813 |
|
|
#define ca32_client u.u32_client
|
| 3814 |
|
|
#define ca32_export u.u32_export
|
| 3815 |
|
|
#define ca32_umap u.u32_umap
|
| 3816 |
|
|
#define ca32_getfh u.u32_getfh
|
| 3817 |
|
|
#define ca32_getfd u.u32_getfd
|
| 3818 |
|
|
#define ca32_getfs u.u32_getfs
|
| 3819 |
|
|
#define ca32_authd u.u32_authd
|
| 3820 |
|
|
};
|
| 3821 |
|
|
|
| 3822 |
|
|
union nfsctl_res32 {
|
| 3823 |
|
|
__u8 cr32_getfh[NFS_FHSIZE];
|
| 3824 |
|
|
struct knfsd_fh cr32_getfs;
|
| 3825 |
|
|
};
|
| 3826 |
|
|
|
| 3827 |
|
|
static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3828 |
|
|
{
|
| 3829 |
|
|
int err;
|
| 3830 |
|
|
|
| 3831 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3832 |
|
|
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
|
| 3833 |
|
|
err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
|
| 3834 |
|
|
return err;
|
| 3835 |
|
|
}
|
| 3836 |
|
|
|
| 3837 |
|
|
static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3838 |
|
|
{
|
| 3839 |
|
|
int err;
|
| 3840 |
|
|
|
| 3841 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3842 |
|
|
err |= copy_from_user(&karg->ca_client.cl_ident[0],
|
| 3843 |
|
|
&arg32->ca32_client.cl32_ident[0],
|
| 3844 |
|
|
NFSCLNT_IDMAX);
|
| 3845 |
|
|
err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
|
| 3846 |
|
|
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
|
| 3847 |
|
|
&arg32->ca32_client.cl32_addrlist[0],
|
| 3848 |
|
|
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
|
| 3849 |
|
|
err |= __get_user(karg->ca_client.cl_fhkeytype,
|
| 3850 |
|
|
&arg32->ca32_client.cl32_fhkeytype);
|
| 3851 |
|
|
err |= __get_user(karg->ca_client.cl_fhkeylen,
|
| 3852 |
|
|
&arg32->ca32_client.cl32_fhkeylen);
|
| 3853 |
|
|
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
|
| 3854 |
|
|
&arg32->ca32_client.cl32_fhkey[0],
|
| 3855 |
|
|
NFSCLNT_KEYMAX);
|
| 3856 |
|
|
return (err ? -EFAULT : 0);
|
| 3857 |
|
|
}
|
| 3858 |
|
|
|
| 3859 |
|
|
static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3860 |
|
|
{
|
| 3861 |
|
|
int err;
|
| 3862 |
|
|
|
| 3863 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3864 |
|
|
err |= copy_from_user(&karg->ca_export.ex_client[0],
|
| 3865 |
|
|
&arg32->ca32_export.ex32_client[0],
|
| 3866 |
|
|
NFSCLNT_IDMAX);
|
| 3867 |
|
|
err |= copy_from_user(&karg->ca_export.ex_path[0],
|
| 3868 |
|
|
&arg32->ca32_export.ex32_path[0],
|
| 3869 |
|
|
NFS_MAXPATHLEN);
|
| 3870 |
|
|
err |= __get_user(karg->ca_export.ex_dev,
|
| 3871 |
|
|
&arg32->ca32_export.ex32_dev);
|
| 3872 |
|
|
err |= __get_user(karg->ca_export.ex_ino,
|
| 3873 |
|
|
&arg32->ca32_export.ex32_ino);
|
| 3874 |
|
|
err |= __get_user(karg->ca_export.ex_flags,
|
| 3875 |
|
|
&arg32->ca32_export.ex32_flags);
|
| 3876 |
|
|
err |= __get_user(karg->ca_export.ex_anon_uid,
|
| 3877 |
|
|
&arg32->ca32_export.ex32_anon_uid);
|
| 3878 |
|
|
err |= __get_user(karg->ca_export.ex_anon_gid,
|
| 3879 |
|
|
&arg32->ca32_export.ex32_anon_gid);
|
| 3880 |
|
|
karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
|
| 3881 |
|
|
karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
|
| 3882 |
|
|
return (err ? -EFAULT : 0);
|
| 3883 |
|
|
}
|
| 3884 |
|
|
|
| 3885 |
|
|
static int nfs_uud32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3886 |
|
|
{
|
| 3887 |
|
|
u32 uaddr;
|
| 3888 |
|
|
int i;
|
| 3889 |
|
|
int err;
|
| 3890 |
|
|
|
| 3891 |
|
|
memset(karg, 0, sizeof(*karg));
|
| 3892 |
|
|
if(__get_user(karg->ca_version, &arg32->ca32_version))
|
| 3893 |
|
|
return -EFAULT;
|
| 3894 |
|
|
karg->ca_umap.ug_ident = (char *)get_free_page(GFP_USER);
|
| 3895 |
|
|
if(!karg->ca_umap.ug_ident)
|
| 3896 |
|
|
return -ENOMEM;
|
| 3897 |
|
|
err = __get_user(uaddr, &arg32->ca32_umap.ug32_ident);
|
| 3898 |
|
|
if(strncpy_from_user(karg->ca_umap.ug_ident,
|
| 3899 |
|
|
(char *)A(uaddr), PAGE_SIZE) <= 0)
|
| 3900 |
|
|
return -EFAULT;
|
| 3901 |
|
|
err |= __get_user(karg->ca_umap.ug_uidbase,
|
| 3902 |
|
|
&arg32->ca32_umap.ug32_uidbase);
|
| 3903 |
|
|
err |= __get_user(karg->ca_umap.ug_uidlen,
|
| 3904 |
|
|
&arg32->ca32_umap.ug32_uidlen);
|
| 3905 |
|
|
err |= __get_user(uaddr, &arg32->ca32_umap.ug32_udimap);
|
| 3906 |
|
|
if (err)
|
| 3907 |
|
|
return -EFAULT;
|
| 3908 |
|
|
karg->ca_umap.ug_udimap = kmalloc((sizeof(uid_t) * karg->ca_umap.ug_uidlen),
|
| 3909 |
|
|
GFP_USER);
|
| 3910 |
|
|
if(!karg->ca_umap.ug_udimap)
|
| 3911 |
|
|
return -ENOMEM;
|
| 3912 |
|
|
for(i = 0; i < karg->ca_umap.ug_uidlen; i++)
|
| 3913 |
|
|
err |= __get_user(karg->ca_umap.ug_udimap[i],
|
| 3914 |
|
|
&(((__kernel_uid_t32 *)A(uaddr))[i]));
|
| 3915 |
|
|
err |= __get_user(karg->ca_umap.ug_gidbase,
|
| 3916 |
|
|
&arg32->ca32_umap.ug32_gidbase);
|
| 3917 |
|
|
err |= __get_user(karg->ca_umap.ug_uidlen,
|
| 3918 |
|
|
&arg32->ca32_umap.ug32_gidlen);
|
| 3919 |
|
|
err |= __get_user(uaddr, &arg32->ca32_umap.ug32_gdimap);
|
| 3920 |
|
|
if (err)
|
| 3921 |
|
|
return -EFAULT;
|
| 3922 |
|
|
karg->ca_umap.ug_gdimap = kmalloc((sizeof(gid_t) * karg->ca_umap.ug_uidlen),
|
| 3923 |
|
|
GFP_USER);
|
| 3924 |
|
|
if(!karg->ca_umap.ug_gdimap)
|
| 3925 |
|
|
return -ENOMEM;
|
| 3926 |
|
|
for(i = 0; i < karg->ca_umap.ug_gidlen; i++)
|
| 3927 |
|
|
err |= __get_user(karg->ca_umap.ug_gdimap[i],
|
| 3928 |
|
|
&(((__kernel_gid_t32 *)A(uaddr))[i]));
|
| 3929 |
|
|
|
| 3930 |
|
|
return (err ? -EFAULT : 0);
|
| 3931 |
|
|
}
|
| 3932 |
|
|
|
| 3933 |
|
|
static int nfs_getfh32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3934 |
|
|
{
|
| 3935 |
|
|
int err;
|
| 3936 |
|
|
|
| 3937 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3938 |
|
|
err |= copy_from_user(&karg->ca_getfh.gf_addr,
|
| 3939 |
|
|
&arg32->ca32_getfh.gf32_addr,
|
| 3940 |
|
|
(sizeof(struct sockaddr)));
|
| 3941 |
|
|
err |= __get_user(karg->ca_getfh.gf_dev,
|
| 3942 |
|
|
&arg32->ca32_getfh.gf32_dev);
|
| 3943 |
|
|
err |= __get_user(karg->ca_getfh.gf_ino,
|
| 3944 |
|
|
&arg32->ca32_getfh.gf32_ino);
|
| 3945 |
|
|
err |= __get_user(karg->ca_getfh.gf_version,
|
| 3946 |
|
|
&arg32->ca32_getfh.gf32_version);
|
| 3947 |
|
|
return (err ? -EFAULT : 0);
|
| 3948 |
|
|
}
|
| 3949 |
|
|
|
| 3950 |
|
|
static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3951 |
|
|
{
|
| 3952 |
|
|
int err;
|
| 3953 |
|
|
|
| 3954 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3955 |
|
|
err |= copy_from_user(&karg->ca_getfd.gd_addr,
|
| 3956 |
|
|
&arg32->ca32_getfd.gd32_addr,
|
| 3957 |
|
|
(sizeof(struct sockaddr)));
|
| 3958 |
|
|
err |= copy_from_user(&karg->ca_getfd.gd_path,
|
| 3959 |
|
|
&arg32->ca32_getfd.gd32_path,
|
| 3960 |
|
|
(NFS_MAXPATHLEN+1));
|
| 3961 |
|
|
err |= __get_user(karg->ca_getfd.gd_version,
|
| 3962 |
|
|
&arg32->ca32_getfd.gd32_version);
|
| 3963 |
|
|
return (err ? -EFAULT : 0);
|
| 3964 |
|
|
}
|
| 3965 |
|
|
|
| 3966 |
|
|
static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
|
| 3967 |
|
|
{
|
| 3968 |
|
|
int err;
|
| 3969 |
|
|
|
| 3970 |
|
|
err = __get_user(karg->ca_version, &arg32->ca32_version);
|
| 3971 |
|
|
err |= copy_from_user(&karg->ca_getfs.gd_addr,
|
| 3972 |
|
|
&arg32->ca32_getfs.gd32_addr,
|
| 3973 |
|
|
(sizeof(struct sockaddr)));
|
| 3974 |
|
|
err |= copy_from_user(&karg->ca_getfs.gd_path,
|
| 3975 |
|
|
&arg32->ca32_getfs.gd32_path,
|
| 3976 |
|
|
(NFS_MAXPATHLEN+1));
|
| 3977 |
|
|
err |= __get_user(karg->ca_getfs.gd_maxlen,
|
| 3978 |
|
|
&arg32->ca32_getfs.gd32_maxlen);
|
| 3979 |
|
|
return (err ? -EFAULT : 0);
|
| 3980 |
|
|
}
|
| 3981 |
|
|
|
| 3982 |
|
|
/* This really doesn't need translations, we are only passing
|
| 3983 |
|
|
* back a union which contains opaque nfs file handle data.
|
| 3984 |
|
|
*/
|
| 3985 |
|
|
static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
|
| 3986 |
|
|
{
|
| 3987 |
|
|
return (copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0);
|
| 3988 |
|
|
}
|
| 3989 |
|
|
|
| 3990 |
|
|
int asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
|
| 3991 |
|
|
{
|
| 3992 |
|
|
struct nfsctl_arg *karg = NULL;
|
| 3993 |
|
|
union nfsctl_res *kres = NULL;
|
| 3994 |
|
|
mm_segment_t oldfs;
|
| 3995 |
|
|
int err;
|
| 3996 |
|
|
|
| 3997 |
|
|
karg = kmalloc(sizeof(*karg), GFP_USER);
|
| 3998 |
|
|
if(!karg)
|
| 3999 |
|
|
return -ENOMEM;
|
| 4000 |
|
|
if(res32) {
|
| 4001 |
|
|
kres = kmalloc(sizeof(*kres), GFP_USER);
|
| 4002 |
|
|
if(!kres) {
|
| 4003 |
|
|
kfree(karg);
|
| 4004 |
|
|
return -ENOMEM;
|
| 4005 |
|
|
}
|
| 4006 |
|
|
}
|
| 4007 |
|
|
switch(cmd) {
|
| 4008 |
|
|
case NFSCTL_SVC:
|
| 4009 |
|
|
err = nfs_svc32_trans(karg, arg32);
|
| 4010 |
|
|
break;
|
| 4011 |
|
|
case NFSCTL_ADDCLIENT:
|
| 4012 |
|
|
err = nfs_clnt32_trans(karg, arg32);
|
| 4013 |
|
|
break;
|
| 4014 |
|
|
case NFSCTL_DELCLIENT:
|
| 4015 |
|
|
err = nfs_clnt32_trans(karg, arg32);
|
| 4016 |
|
|
break;
|
| 4017 |
|
|
case NFSCTL_EXPORT:
|
| 4018 |
|
|
case NFSCTL_UNEXPORT:
|
| 4019 |
|
|
err = nfs_exp32_trans(karg, arg32);
|
| 4020 |
|
|
break;
|
| 4021 |
|
|
/* This one is unimplemented, be we're ready for it. */
|
| 4022 |
|
|
case NFSCTL_UGIDUPDATE:
|
| 4023 |
|
|
err = nfs_uud32_trans(karg, arg32);
|
| 4024 |
|
|
break;
|
| 4025 |
|
|
case NFSCTL_GETFH:
|
| 4026 |
|
|
err = nfs_getfh32_trans(karg, arg32);
|
| 4027 |
|
|
break;
|
| 4028 |
|
|
case NFSCTL_GETFD:
|
| 4029 |
|
|
err = nfs_getfd32_trans(karg, arg32);
|
| 4030 |
|
|
break;
|
| 4031 |
|
|
case NFSCTL_GETFS:
|
| 4032 |
|
|
err = nfs_getfs32_trans(karg, arg32);
|
| 4033 |
|
|
break;
|
| 4034 |
|
|
default:
|
| 4035 |
|
|
err = -EINVAL;
|
| 4036 |
|
|
break;
|
| 4037 |
|
|
}
|
| 4038 |
|
|
if(err)
|
| 4039 |
|
|
goto done;
|
| 4040 |
|
|
oldfs = get_fs();
|
| 4041 |
|
|
set_fs(KERNEL_DS);
|
| 4042 |
|
|
err = sys_nfsservctl(cmd, karg, kres);
|
| 4043 |
|
|
set_fs(oldfs);
|
| 4044 |
|
|
|
| 4045 |
|
|
if (err)
|
| 4046 |
|
|
goto done;
|
| 4047 |
|
|
|
| 4048 |
|
|
if((cmd == NFSCTL_GETFH) ||
|
| 4049 |
|
|
(cmd == NFSCTL_GETFD) ||
|
| 4050 |
|
|
(cmd == NFSCTL_GETFS))
|
| 4051 |
|
|
err = nfs_getfh32_res_trans(kres, res32);
|
| 4052 |
|
|
|
| 4053 |
|
|
done:
|
| 4054 |
|
|
if(karg) {
|
| 4055 |
|
|
if(cmd == NFSCTL_UGIDUPDATE) {
|
| 4056 |
|
|
if(karg->ca_umap.ug_ident)
|
| 4057 |
|
|
kfree(karg->ca_umap.ug_ident);
|
| 4058 |
|
|
if(karg->ca_umap.ug_udimap)
|
| 4059 |
|
|
kfree(karg->ca_umap.ug_udimap);
|
| 4060 |
|
|
if(karg->ca_umap.ug_gdimap)
|
| 4061 |
|
|
kfree(karg->ca_umap.ug_gdimap);
|
| 4062 |
|
|
}
|
| 4063 |
|
|
kfree(karg);
|
| 4064 |
|
|
}
|
| 4065 |
|
|
if(kres)
|
| 4066 |
|
|
kfree(kres);
|
| 4067 |
|
|
return err;
|
| 4068 |
|
|
}
|
| 4069 |
|
|
#else /* !NFSD */
|
| 4070 |
|
|
extern asmlinkage long sys_ni_syscall(void);
|
| 4071 |
|
|
int asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2)
|
| 4072 |
|
|
{
|
| 4073 |
|
|
return sys_ni_syscall();
|
| 4074 |
|
|
}
|
| 4075 |
|
|
#endif
|
| 4076 |
|
|
|
| 4077 |
|
|
/* Translations due to time_t size differences. Which affects all
|
| 4078 |
|
|
sorts of things, like timeval and itimerval. */
|
| 4079 |
|
|
|
| 4080 |
|
|
extern struct timezone sys_tz;
|
| 4081 |
|
|
extern int do_sys_settimeofday(struct timeval *tv, struct timezone *tz);
|
| 4082 |
|
|
|
| 4083 |
|
|
asmlinkage int sys32_gettimeofday(struct timeval32 *tv, struct timezone *tz)
|
| 4084 |
|
|
{
|
| 4085 |
|
|
if (tv) {
|
| 4086 |
|
|
struct timeval ktv;
|
| 4087 |
|
|
do_gettimeofday(&ktv);
|
| 4088 |
|
|
if (put_tv32(tv, &ktv))
|
| 4089 |
|
|
return -EFAULT;
|
| 4090 |
|
|
}
|
| 4091 |
|
|
if (tz) {
|
| 4092 |
|
|
if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
|
| 4093 |
|
|
return -EFAULT;
|
| 4094 |
|
|
}
|
| 4095 |
|
|
return 0;
|
| 4096 |
|
|
}
|
| 4097 |
|
|
|
| 4098 |
|
|
asmlinkage int sys32_settimeofday(struct timeval32 *tv, struct timezone *tz)
|
| 4099 |
|
|
{
|
| 4100 |
|
|
struct timeval ktv;
|
| 4101 |
|
|
struct timezone ktz;
|
| 4102 |
|
|
|
| 4103 |
|
|
if (tv) {
|
| 4104 |
|
|
if (get_tv32(&ktv, tv))
|
| 4105 |
|
|
return -EFAULT;
|
| 4106 |
|
|
}
|
| 4107 |
|
|
if (tz) {
|
| 4108 |
|
|
if (copy_from_user(&ktz, tz, sizeof(ktz)))
|
| 4109 |
|
|
return -EFAULT;
|
| 4110 |
|
|
}
|
| 4111 |
|
|
|
| 4112 |
|
|
return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL);
|
| 4113 |
|
|
}
|
| 4114 |
|
|
|
| 4115 |
|
|
extern int do_getitimer(int which, struct itimerval *value);
|
| 4116 |
|
|
|
| 4117 |
|
|
asmlinkage int sys32_getitimer(int which, struct itimerval32 *it)
|
| 4118 |
|
|
{
|
| 4119 |
|
|
struct itimerval kit;
|
| 4120 |
|
|
int error;
|
| 4121 |
|
|
|
| 4122 |
|
|
error = do_getitimer(which, &kit);
|
| 4123 |
|
|
if (!error && put_it32(it, &kit))
|
| 4124 |
|
|
error = -EFAULT;
|
| 4125 |
|
|
|
| 4126 |
|
|
return error;
|
| 4127 |
|
|
}
|
| 4128 |
|
|
|
| 4129 |
|
|
extern int do_setitimer(int which, struct itimerval *, struct itimerval *);
|
| 4130 |
|
|
|
| 4131 |
|
|
asmlinkage int sys32_setitimer(int which, struct itimerval32 *in, struct itimerval32 *out)
|
| 4132 |
|
|
{
|
| 4133 |
|
|
struct itimerval kin, kout;
|
| 4134 |
|
|
int error;
|
| 4135 |
|
|
|
| 4136 |
|
|
if (in) {
|
| 4137 |
|
|
if (get_it32(&kin, in))
|
| 4138 |
|
|
return -EFAULT;
|
| 4139 |
|
|
} else
|
| 4140 |
|
|
memset(&kin, 0, sizeof(kin));
|
| 4141 |
|
|
|
| 4142 |
|
|
error = do_setitimer(which, &kin, out ? &kout : NULL);
|
| 4143 |
|
|
if (error || !out)
|
| 4144 |
|
|
return error;
|
| 4145 |
|
|
if (put_it32(out, &kout))
|
| 4146 |
|
|
return -EFAULT;
|
| 4147 |
|
|
|
| 4148 |
|
|
return 0;
|
| 4149 |
|
|
|
| 4150 |
|
|
}
|
| 4151 |
|
|
|
| 4152 |
|
|
asmlinkage int sys_utimes(char *, struct timeval *);
|
| 4153 |
|
|
|
| 4154 |
|
|
asmlinkage int sys32_utimes(char *filename, struct timeval32 *tvs)
|
| 4155 |
|
|
{
|
| 4156 |
|
|
char *kfilename;
|
| 4157 |
|
|
struct timeval ktvs[2];
|
| 4158 |
|
|
mm_segment_t old_fs;
|
| 4159 |
|
|
int ret;
|
| 4160 |
|
|
|
| 4161 |
|
|
kfilename = getname(filename);
|
| 4162 |
|
|
ret = PTR_ERR(kfilename);
|
| 4163 |
|
|
if (!IS_ERR(kfilename)) {
|
| 4164 |
|
|
if (tvs) {
|
| 4165 |
|
|
if (get_tv32(&ktvs[0], tvs) ||
|
| 4166 |
|
|
get_tv32(&ktvs[1], 1+tvs))
|
| 4167 |
|
|
return -EFAULT;
|
| 4168 |
|
|
}
|
| 4169 |
|
|
|
| 4170 |
|
|
old_fs = get_fs();
|
| 4171 |
|
|
set_fs(KERNEL_DS);
|
| 4172 |
|
|
ret = sys_utimes(kfilename, &ktvs[0]);
|
| 4173 |
|
|
set_fs(old_fs);
|
| 4174 |
|
|
|
| 4175 |
|
|
putname(kfilename);
|
| 4176 |
|
|
}
|
| 4177 |
|
|
return ret;
|
| 4178 |
|
|
}
|
| 4179 |
|
|
|
| 4180 |
|
|
/* These are here just in case some old sparc32 binary calls it. */
|
| 4181 |
|
|
asmlinkage int sys32_pause(void)
|
| 4182 |
|
|
{
|
| 4183 |
|
|
current->state = TASK_INTERRUPTIBLE;
|
| 4184 |
|
|
schedule();
|
| 4185 |
|
|
return -ERESTARTNOHAND;
|
| 4186 |
|
|
}
|
| 4187 |
|
|
|
| 4188 |
|
|
/* PCI config space poking. */
|
| 4189 |
|
|
extern asmlinkage int sys_pciconfig_read(unsigned long bus,
|
| 4190 |
|
|
unsigned long dfn,
|
| 4191 |
|
|
unsigned long off,
|
| 4192 |
|
|
unsigned long len,
|
| 4193 |
|
|
unsigned char *buf);
|
| 4194 |
|
|
|
| 4195 |
|
|
extern asmlinkage int sys_pciconfig_write(unsigned long bus,
|
| 4196 |
|
|
unsigned long dfn,
|
| 4197 |
|
|
unsigned long off,
|
| 4198 |
|
|
unsigned long len,
|
| 4199 |
|
|
unsigned char *buf);
|
| 4200 |
|
|
|
| 4201 |
|
|
asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
|
| 4202 |
|
|
{
|
| 4203 |
|
|
return sys_pciconfig_read((unsigned long) bus,
|
| 4204 |
|
|
(unsigned long) dfn,
|
| 4205 |
|
|
(unsigned long) off,
|
| 4206 |
|
|
(unsigned long) len,
|
| 4207 |
|
|
(unsigned char *)AA(ubuf));
|
| 4208 |
|
|
}
|
| 4209 |
|
|
|
| 4210 |
|
|
asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
|
| 4211 |
|
|
{
|
| 4212 |
|
|
return sys_pciconfig_write((unsigned long) bus,
|
| 4213 |
|
|
(unsigned long) dfn,
|
| 4214 |
|
|
(unsigned long) off,
|
| 4215 |
|
|
(unsigned long) len,
|
| 4216 |
|
|
(unsigned char *)AA(ubuf));
|
| 4217 |
|
|
}
|
| 4218 |
|
|
|
| 4219 |
|
|
extern asmlinkage int sys_prctl(int option, unsigned long arg2, unsigned long arg3,
|
| 4220 |
|
|
unsigned long arg4, unsigned long arg5);
|
| 4221 |
|
|
|
| 4222 |
|
|
asmlinkage int sys32_prctl(int option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
|
| 4223 |
|
|
{
|
| 4224 |
|
|
return sys_prctl(option,
|
| 4225 |
|
|
(unsigned long) arg2,
|
| 4226 |
|
|
(unsigned long) arg3,
|
| 4227 |
|
|
(unsigned long) arg4,
|
| 4228 |
|
|
(unsigned long) arg5);
|
| 4229 |
|
|
}
|
| 4230 |
|
|
|
| 4231 |
|
|
|
| 4232 |
|
|
extern asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
|
| 4233 |
|
|
size_t count, loff_t pos);
|
| 4234 |
|
|
|
| 4235 |
|
|
extern asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf,
|
| 4236 |
|
|
size_t count, loff_t pos);
|
| 4237 |
|
|
|
| 4238 |
|
|
typedef __kernel_ssize_t32 ssize_t32;
|
| 4239 |
|
|
|
| 4240 |
|
|
asmlinkage ssize_t32 sys32_pread(unsigned int fd, char *ubuf,
|
| 4241 |
|
|
__kernel_size_t32 count, u32 poshi, u32 poslo)
|
| 4242 |
|
|
{
|
| 4243 |
|
|
return sys_pread(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
|
| 4244 |
|
|
}
|
| 4245 |
|
|
|
| 4246 |
|
|
asmlinkage ssize_t32 sys32_pwrite(unsigned int fd, char *ubuf,
|
| 4247 |
|
|
__kernel_size_t32 count, u32 poshi, u32 poslo)
|
| 4248 |
|
|
{
|
| 4249 |
|
|
return sys_pwrite(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
|
| 4250 |
|
|
}
|
| 4251 |
|
|
|
| 4252 |
|
|
extern asmlinkage ssize_t sys_readahead(int fd, loff_t offset, size_t count);
|
| 4253 |
|
|
|
| 4254 |
|
|
asmlinkage ssize_t32 sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count)
|
| 4255 |
|
|
{
|
| 4256 |
|
|
return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
|
| 4257 |
|
|
}
|
| 4258 |
|
|
|
| 4259 |
|
|
extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t *offset, size_t count);
|
| 4260 |
|
|
|
| 4261 |
|
|
asmlinkage int sys32_sendfile(int out_fd, int in_fd, __kernel_off_t32 *offset, s32 count)
|
| 4262 |
|
|
{
|
| 4263 |
|
|
mm_segment_t old_fs = get_fs();
|
| 4264 |
|
|
int ret;
|
| 4265 |
|
|
off_t of;
|
| 4266 |
|
|
|
| 4267 |
|
|
if (offset && get_user(of, offset))
|
| 4268 |
|
|
return -EFAULT;
|
| 4269 |
|
|
|
| 4270 |
|
|
set_fs(KERNEL_DS);
|
| 4271 |
|
|
ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
|
| 4272 |
|
|
set_fs(old_fs);
|
| 4273 |
|
|
|
| 4274 |
|
|
if (offset && put_user(of, offset))
|
| 4275 |
|
|
return -EFAULT;
|
| 4276 |
|
|
|
| 4277 |
|
|
return ret;
|
| 4278 |
|
|
}
|
| 4279 |
|
|
|
| 4280 |
|
|
/* Handle adjtimex compatability. */
|
| 4281 |
|
|
|
| 4282 |
|
|
struct timex32 {
|
| 4283 |
|
|
u32 modes;
|
| 4284 |
|
|
s32 offset, freq, maxerror, esterror;
|
| 4285 |
|
|
s32 status, constant, precision, tolerance;
|
| 4286 |
|
|
struct timeval32 time;
|
| 4287 |
|
|
s32 tick;
|
| 4288 |
|
|
s32 ppsfreq, jitter, shift, stabil;
|
| 4289 |
|
|
s32 jitcnt, calcnt, errcnt, stbcnt;
|
| 4290 |
|
|
s32 :32; s32 :32; s32 :32; s32 :32;
|
| 4291 |
|
|
s32 :32; s32 :32; s32 :32; s32 :32;
|
| 4292 |
|
|
s32 :32; s32 :32; s32 :32; s32 :32;
|
| 4293 |
|
|
};
|
| 4294 |
|
|
|
| 4295 |
|
|
extern int do_adjtimex(struct timex *);
|
| 4296 |
|
|
|
| 4297 |
|
|
asmlinkage int sys32_adjtimex(struct timex32 *utp)
|
| 4298 |
|
|
{
|
| 4299 |
|
|
struct timex txc;
|
| 4300 |
|
|
int ret;
|
| 4301 |
|
|
|
| 4302 |
|
|
memset(&txc, 0, sizeof(struct timex));
|
| 4303 |
|
|
|
| 4304 |
|
|
if(get_user(txc.modes, &utp->modes) ||
|
| 4305 |
|
|
__get_user(txc.offset, &utp->offset) ||
|
| 4306 |
|
|
__get_user(txc.freq, &utp->freq) ||
|
| 4307 |
|
|
__get_user(txc.maxerror, &utp->maxerror) ||
|
| 4308 |
|
|
__get_user(txc.esterror, &utp->esterror) ||
|
| 4309 |
|
|
__get_user(txc.status, &utp->status) ||
|
| 4310 |
|
|
__get_user(txc.constant, &utp->constant) ||
|
| 4311 |
|
|
__get_user(txc.precision, &utp->precision) ||
|
| 4312 |
|
|
__get_user(txc.tolerance, &utp->tolerance) ||
|
| 4313 |
|
|
__get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
|
| 4314 |
|
|
__get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
|
| 4315 |
|
|
__get_user(txc.tick, &utp->tick) ||
|
| 4316 |
|
|
__get_user(txc.ppsfreq, &utp->ppsfreq) ||
|
| 4317 |
|
|
__get_user(txc.jitter, &utp->jitter) ||
|
| 4318 |
|
|
__get_user(txc.shift, &utp->shift) ||
|
| 4319 |
|
|
__get_user(txc.stabil, &utp->stabil) ||
|
| 4320 |
|
|
__get_user(txc.jitcnt, &utp->jitcnt) ||
|
| 4321 |
|
|
__get_user(txc.calcnt, &utp->calcnt) ||
|
| 4322 |
|
|
__get_user(txc.errcnt, &utp->errcnt) ||
|
| 4323 |
|
|
__get_user(txc.stbcnt, &utp->stbcnt))
|
| 4324 |
|
|
return -EFAULT;
|
| 4325 |
|
|
|
| 4326 |
|
|
ret = do_adjtimex(&txc);
|
| 4327 |
|
|
|
| 4328 |
|
|
if(put_user(txc.modes, &utp->modes) ||
|
| 4329 |
|
|
__put_user(txc.offset, &utp->offset) ||
|
| 4330 |
|
|
__put_user(txc.freq, &utp->freq) ||
|
| 4331 |
|
|
__put_user(txc.maxerror, &utp->maxerror) ||
|
| 4332 |
|
|
__put_user(txc.esterror, &utp->esterror) ||
|
| 4333 |
|
|
__put_user(txc.status, &utp->status) ||
|
| 4334 |
|
|
__put_user(txc.constant, &utp->constant) ||
|
| 4335 |
|
|
__put_user(txc.precision, &utp->precision) ||
|
| 4336 |
|
|
__put_user(txc.tolerance, &utp->tolerance) ||
|
| 4337 |
|
|
__put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
|
| 4338 |
|
|
__put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
|
| 4339 |
|
|
__put_user(txc.tick, &utp->tick) ||
|
| 4340 |
|
|
__put_user(txc.ppsfreq, &utp->ppsfreq) ||
|
| 4341 |
|
|
__put_user(txc.jitter, &utp->jitter) ||
|
| 4342 |
|
|
__put_user(txc.shift, &utp->shift) ||
|
| 4343 |
|
|
__put_user(txc.stabil, &utp->stabil) ||
|
| 4344 |
|
|
__put_user(txc.jitcnt, &utp->jitcnt) ||
|
| 4345 |
|
|
__put_user(txc.calcnt, &utp->calcnt) ||
|
| 4346 |
|
|
__put_user(txc.errcnt, &utp->errcnt) ||
|
| 4347 |
|
|
__put_user(txc.stbcnt, &utp->stbcnt))
|
| 4348 |
|
|
ret = -EFAULT;
|
| 4349 |
|
|
|
| 4350 |
|
|
return ret;
|
| 4351 |
|
|
}
|
| 4352 |
|
|
|
| 4353 |
|
|
/* This is just a version for 32-bit applications which does
|
| 4354 |
|
|
* not force O_LARGEFILE on.
|
| 4355 |
|
|
*/
|
| 4356 |
|
|
|
| 4357 |
|
|
asmlinkage long sparc32_open(const char * filename, int flags, int mode)
|
| 4358 |
|
|
{
|
| 4359 |
|
|
char * tmp;
|
| 4360 |
|
|
int fd, error;
|
| 4361 |
|
|
|
| 4362 |
|
|
tmp = getname(filename);
|
| 4363 |
|
|
fd = PTR_ERR(tmp);
|
| 4364 |
|
|
if (!IS_ERR(tmp)) {
|
| 4365 |
|
|
fd = get_unused_fd();
|
| 4366 |
|
|
if (fd >= 0) {
|
| 4367 |
|
|
struct file * f = filp_open(tmp, flags, mode);
|
| 4368 |
|
|
error = PTR_ERR(f);
|
| 4369 |
|
|
if (IS_ERR(f))
|
| 4370 |
|
|
goto out_error;
|
| 4371 |
|
|
fd_install(fd, f);
|
| 4372 |
|
|
}
|
| 4373 |
|
|
out:
|
| 4374 |
|
|
putname(tmp);
|
| 4375 |
|
|
}
|
| 4376 |
|
|
return fd;
|
| 4377 |
|
|
|
| 4378 |
|
|
out_error:
|
| 4379 |
|
|
put_unused_fd(fd);
|
| 4380 |
|
|
fd = error;
|
| 4381 |
|
|
goto out;
|
| 4382 |
|
|
}
|
| 4383 |
|
|
|
| 4384 |
|
|
extern unsigned long do_mremap(unsigned long addr,
|
| 4385 |
|
|
unsigned long old_len, unsigned long new_len,
|
| 4386 |
|
|
unsigned long flags, unsigned long new_addr);
|
| 4387 |
|
|
|
| 4388 |
|
|
asmlinkage unsigned long sys32_mremap(unsigned long addr,
|
| 4389 |
|
|
unsigned long old_len, unsigned long new_len,
|
| 4390 |
|
|
unsigned long flags, u32 __new_addr)
|
| 4391 |
|
|
{
|
| 4392 |
|
|
struct vm_area_struct *vma;
|
| 4393 |
|
|
unsigned long ret = -EINVAL;
|
| 4394 |
|
|
unsigned long new_addr = AA(__new_addr);
|
| 4395 |
|
|
|
| 4396 |
|
|
if (old_len > 0xf0000000UL || new_len > 0xf0000000UL)
|
| 4397 |
|
|
goto out;
|
| 4398 |
|
|
if (addr > 0xf0000000UL - old_len)
|
| 4399 |
|
|
goto out;
|
| 4400 |
|
|
down_write(¤t->mm->mmap_sem);
|
| 4401 |
|
|
if (flags & MREMAP_FIXED) {
|
| 4402 |
|
|
if (new_addr > 0xf0000000UL - new_len)
|
| 4403 |
|
|
goto out_sem;
|
| 4404 |
|
|
} else if (addr > 0xf0000000UL - new_len) {
|
| 4405 |
|
|
unsigned long map_flags = 0;
|
| 4406 |
|
|
struct file *file = NULL;
|
| 4407 |
|
|
|
| 4408 |
|
|
ret = -ENOMEM;
|
| 4409 |
|
|
if (!(flags & MREMAP_MAYMOVE))
|
| 4410 |
|
|
goto out_sem;
|
| 4411 |
|
|
|
| 4412 |
|
|
vma = find_vma(current->mm, addr);
|
| 4413 |
|
|
if (vma) {
|
| 4414 |
|
|
if (vma->vm_flags & VM_SHARED)
|
| 4415 |
|
|
map_flags |= MAP_SHARED;
|
| 4416 |
|
|
file = vma->vm_file;
|
| 4417 |
|
|
}
|
| 4418 |
|
|
|
| 4419 |
|
|
/* MREMAP_FIXED checked above. */
|
| 4420 |
|
|
new_addr = get_unmapped_area(file, addr, new_len,
|
| 4421 |
|
|
vma ? vma->vm_pgoff : 0,
|
| 4422 |
|
|
map_flags);
|
| 4423 |
|
|
ret = new_addr;
|
| 4424 |
|
|
if (new_addr & ~PAGE_MASK)
|
| 4425 |
|
|
goto out_sem;
|
| 4426 |
|
|
flags |= MREMAP_FIXED;
|
| 4427 |
|
|
}
|
| 4428 |
|
|
ret = do_mremap(addr, old_len, new_len, flags, new_addr);
|
| 4429 |
|
|
out_sem:
|
| 4430 |
|
|
up_write(¤t->mm->mmap_sem);
|
| 4431 |
|
|
out:
|
| 4432 |
|
|
return ret;
|
| 4433 |
|
|
}
|
| 4434 |
|
|
|
| 4435 |
|
|
extern asmlinkage long sys_setpriority(int which, int who, int niceval);
|
| 4436 |
|
|
|
| 4437 |
|
|
asmlinkage int sys_setpriority32(u32 which, u32 who, u32 niceval)
|
| 4438 |
|
|
{
|
| 4439 |
|
|
return sys_setpriority((int) which,
|
| 4440 |
|
|
(int) who,
|
| 4441 |
|
|
(int) niceval);
|
| 4442 |
|
|
}
|
| 4443 |
|
|
|
| 4444 |
|
|
struct __sysctl_args32 {
|
| 4445 |
|
|
u32 name;
|
| 4446 |
|
|
int nlen;
|
| 4447 |
|
|
u32 oldval;
|
| 4448 |
|
|
u32 oldlenp;
|
| 4449 |
|
|
u32 newval;
|
| 4450 |
|
|
u32 newlen;
|
| 4451 |
|
|
u32 __unused[4];
|
| 4452 |
|
|
};
|
| 4453 |
|
|
|
| 4454 |
|
|
extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
|
| 4455 |
|
|
{
|
| 4456 |
|
|
#ifndef CONFIG_SYSCTL
|
| 4457 |
|
|
return -ENOSYS;
|
| 4458 |
|
|
#else
|
| 4459 |
|
|
struct __sysctl_args32 tmp;
|
| 4460 |
|
|
int error;
|
| 4461 |
|
|
size_t oldlen, *oldlenp = NULL;
|
| 4462 |
|
|
unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
|
| 4463 |
|
|
|
| 4464 |
|
|
if (copy_from_user(&tmp, args, sizeof(tmp)))
|
| 4465 |
|
|
return -EFAULT;
|
| 4466 |
|
|
|
| 4467 |
|
|
if (tmp.oldval && tmp.oldlenp) {
|
| 4468 |
|
|
/* Duh, this is ugly and might not work if sysctl_args
|
| 4469 |
|
|
is in read-only memory, but do_sysctl does indirectly
|
| 4470 |
|
|
a lot of uaccess in both directions and we'd have to
|
| 4471 |
|
|
basically copy the whole sysctl.c here, and
|
| 4472 |
|
|
glibc's __sysctl uses rw memory for the structure
|
| 4473 |
|
|
anyway. */
|
| 4474 |
|
|
if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
|
| 4475 |
|
|
put_user(oldlen, (size_t *)addr))
|
| 4476 |
|
|
return -EFAULT;
|
| 4477 |
|
|
oldlenp = (size_t *)addr;
|
| 4478 |
|
|
}
|
| 4479 |
|
|
|
| 4480 |
|
|
lock_kernel();
|
| 4481 |
|
|
error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
|
| 4482 |
|
|
oldlenp, (void *)A(tmp.newval), tmp.newlen);
|
| 4483 |
|
|
unlock_kernel();
|
| 4484 |
|
|
if (oldlenp) {
|
| 4485 |
|
|
if (!error) {
|
| 4486 |
|
|
if (get_user(oldlen, (size_t *)addr) ||
|
| 4487 |
|
|
put_user(oldlen, (u32 *)A(tmp.oldlenp)))
|
| 4488 |
|
|
error = -EFAULT;
|
| 4489 |
|
|
}
|
| 4490 |
|
|
copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
|
| 4491 |
|
|
}
|
| 4492 |
|
|
return error;
|
| 4493 |
|
|
#endif
|
| 4494 |
|
|
}
|
