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Commit 522cbd42 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
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[PATCH] Consolidate sys32_nfsservctl 

From: Arnd Bergmann <arnd@arndb.de>

sys32_nfsservctl is the largest remaining syscall emulation handler that can
be consolidated.  mips and ia64 currently don't use this at all, parisc has a
simpler implementation than the one used by s390, sparc ppc and that the new
compat_sys_nfsservctl is based on.

The user access checks in the code are inconsistant at least, which should be
fixed here.

Compile tested only due to lack of proper test setup.
parent 37915f7b
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Showing with 249 additions and 1180 deletions
arch/ia64/ia32/sys_ia32.c
View file @ 522cbd42
...@@ -2200,176 +2200,6 @@ sys32_setresgid(compat_gid_t rgid, compat_gid_t egid, ...@@ -2200,176 +2200,6 @@ sys32_setresgid(compat_gid_t rgid, compat_gid_t egid,
return sys_setresgid(srgid, segid, ssgid); return sys_setresgid(srgid, segid, ssgid);
} }
/* Stuff for NFS server syscalls... */
struct nfsctl_svc32 {
u16 svc32_port;
s32 svc32_nthreads;
};
struct nfsctl_client32 {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct nfsctl_export32 {
s8 ex32_client[NFSCLNT_IDMAX+1];
s8 ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
s32 ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct nfsctl_arg32 {
s32 ca32_version; /* safeguard */
union {
struct nfsctl_svc32 u32_svc;
struct nfsctl_client32 u32_client;
struct nfsctl_export32 u32_export;
u32 u32_debug;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_debug u.u32_debug
};
union nfsctl_res32 {
struct knfs_fh cr32_getfh;
u32 cr32_debug;
};
static int
nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads,
&arg32->ca32_svc.svc32_nthreads);
return err;
}
static int
nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_client.cl_ident[0],
&arg32->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr,
&arg32->ca32_client.cl32_naddr);
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg32->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg32->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg32->ca32_client.cl32_fhkeylen);
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg32->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
return err;
}
static int
nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_export.ex_client[0],
&arg32->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= copy_from_user(&karg->ca_export.ex_path[0],
&arg32->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg32->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg32->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg32->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg32->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg32->ca32_export.ex32_anon_gid);
return err;
}
static int
nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
{
int err;
err = copy_to_user(&res32->cr32_getfh,
&kres->cr_getfh,
sizeof(res32->cr32_getfh));
err |= __put_user(kres->cr_debug, &res32->cr32_debug);
return err;
}
int asmlinkage
sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
{
struct nfsctl_arg *karg = NULL;
union nfsctl_res *kres = NULL;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
if(!karg)
return -ENOMEM;
if(res32) {
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!kres) {
kfree(karg);
return -ENOMEM;
}
}
switch(cmd) {
case NFSCTL_SVC:
err = nfs_svc32_trans(karg, arg32);
break;
case NFSCTL_ADDCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_DELCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_EXPORT:
err = nfs_exp32_trans(karg, arg32);
break;
default:
err = -EINVAL;
break;
}
if(err)
goto done;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if(!err && cmd == NFSCTL_GETFS)
err = nfs_getfh32_res_trans(kres, res32);
done:
if(karg)
kfree(karg);
if(kres)
kfree(kres);
return err;
}
/* Handle adjtimex compatibility. */ /* Handle adjtimex compatibility. */
struct timex32 { struct timex32 {
......
arch/parisc/kernel/sys_parisc32.c
View file @ 522cbd42
...@@ -564,94 +564,6 @@ asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 c ...@@ -564,94 +564,6 @@ asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 c
return ret; return ret;
} }
/* EXPORT/UNEXPORT */
struct nfsctl_export32 {
char ex_client[NFSCLNT_IDMAX+1];
char ex_path[NFS_MAXPATHLEN+1];
__kernel_old_dev_t ex_dev;
compat_ino_t ex_ino;
int ex_flags;
__kernel_uid_t ex_anon_uid;
__kernel_gid_t ex_anon_gid;
};
struct nfsctl_arg32 {
int ca_version; /* safeguard */
/* wide kernel places this union on 8-byte boundary, narrow on 4 */
union {
struct nfsctl_svc u_svc;
struct nfsctl_client u_client;
struct nfsctl_export32 u_export;
struct nfsctl_fdparm u_getfd;
struct nfsctl_fsparm u_getfs;
} u;
};
asmlinkage int sys32_nfsservctl(int cmd, void *argp, void *resp)
{
int ret, tmp;
struct nfsctl_arg32 n32;
struct nfsctl_arg n;
ret = copy_from_user(&n, argp, sizeof n.ca_version);
if (ret != 0)
return ret;
/* adjust argp to point at the union inside the user's n32 struct */
tmp = (unsigned long)&n32.u - (unsigned long)&n32;
argp = (void *)((unsigned long)argp + tmp);
switch(cmd) {
case NFSCTL_SVC:
ret = copy_from_user(&n.u, argp, sizeof n.u.u_svc);
break;
case NFSCTL_ADDCLIENT:
case NFSCTL_DELCLIENT:
ret = copy_from_user(&n.u, argp, sizeof n.u.u_client);
break;
case NFSCTL_GETFD:
ret = copy_from_user(&n.u, argp, sizeof n.u.u_getfd);
break;
case NFSCTL_GETFS:
ret = copy_from_user(&n.u, argp, sizeof n.u.u_getfs);
break;
case NFSCTL_UNEXPORT: /* nfsctl_export */
case NFSCTL_EXPORT: /* nfsctl_export */
ret = copy_from_user(&n32.u, argp, sizeof n32.u.u_export);
#undef CP
#define CP(x) n.u.u_export.ex_##x = n32.u.u_export.ex_##x
memcpy(n.u.u_export.ex_client, n32.u.u_export.ex_client, sizeof n32.u.u_export.ex_client);
memcpy(n.u.u_export.ex_path, n32.u.u_export.ex_path, sizeof n32.u.u_export.ex_path);
CP(dev);
CP(ino);
CP(flags);
CP(anon_uid);
CP(anon_gid);
break;
default:
/* lockd probes for some other values (0x10000);
* so don't BUG() */
ret = -EINVAL;
break;
}
if (ret == 0) {
unsigned char rbuf[NFS_FHSIZE + sizeof (struct knfsd_fh)];
KERNEL_SYSCALL(ret, sys_nfsservctl, cmd, &n, &rbuf);
if (cmd == NFSCTL_GETFD) {
ret = copy_to_user(resp, rbuf, NFS_FHSIZE);
} else if (cmd == NFSCTL_GETFS) {
ret = copy_to_user(resp, rbuf, sizeof (struct knfsd_fh));
}
}
return ret;
}
typedef long __kernel_loff_t32; /* move this to asm/posix_types.h? */ typedef long __kernel_loff_t32; /* move this to asm/posix_types.h? */
asmlinkage int sys32_sendfile64(int out_fd, int in_fd, __kernel_loff_t32 *offset, s32 count) asmlinkage int sys32_sendfile64(int out_fd, int in_fd, __kernel_loff_t32 *offset, s32 count)
......
arch/parisc/kernel/syscall_table.S
View file @ 522cbd42
...@@ -266,7 +266,7 @@ ...@@ -266,7 +266,7 @@
ENTRY_SAME(ni_syscall) /* query_module */ ENTRY_SAME(ni_syscall) /* query_module */
ENTRY_SAME(poll) ENTRY_SAME(poll)
/* structs contain pointers and an in_addr... */ /* structs contain pointers and an in_addr... */
ENTRY_DIFF(nfsservctl) ENTRY_COMP(nfsservctl)
ENTRY_SAME(setresgid) /* 170 */ ENTRY_SAME(setresgid) /* 170 */
ENTRY_SAME(getresgid) ENTRY_SAME(getresgid)
ENTRY_SAME(prctl) ENTRY_SAME(prctl)
......
arch/ppc64/kernel/misc.S
View file @ 522cbd42
...@@ -740,7 +740,7 @@ _GLOBAL(sys_call_table32) ...@@ -740,7 +740,7 @@ _GLOBAL(sys_call_table32)
.llong .sys_getresuid /* 165 */ .llong .sys_getresuid /* 165 */
.llong .sys_ni_syscall /* old query_module syscall */ .llong .sys_ni_syscall /* old query_module syscall */
.llong .sys_poll .llong .sys_poll
.llong .sys32_nfsservctl .llong .compat_sys_nfsservctl
.llong .sys_setresgid .llong .sys_setresgid
.llong .sys_getresgid /* 170 */ .llong .sys_getresgid /* 170 */
.llong .sys32_prctl .llong .sys32_prctl
......
arch/ppc64/kernel/sys_ppc32.c
View file @ 522cbd42
...@@ -351,245 +351,6 @@ asmlinkage long sys32_adjtimex(struct timex32 *utp) ...@@ -351,245 +351,6 @@ asmlinkage long sys32_adjtimex(struct timex32 *utp)
return ret; return ret;
} }
/* Stuff for NFS server syscalls... */
struct nfsctl_svc32 {
u16 svc32_port;
s32 svc32_nthreads;
};
struct nfsctl_client32 {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct nfsctl_export32 {
s8 ex32_client[NFSCLNT_IDMAX+1];
s8 ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
s32 ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct nfsctl_fdparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_version;
};
struct nfsctl_fsparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_maxlen;
};
struct nfsctl_arg32 {
s32 ca32_version; /* safeguard */
union {
struct nfsctl_svc32 u32_svc;
struct nfsctl_client32 u32_client;
struct nfsctl_export32 u32_export;
struct nfsctl_fdparm32 u32_getfd;
struct nfsctl_fsparm32 u32_getfs;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_getfd u.u32_getfd
#define ca32_getfs u.u32_getfs
};
union nfsctl_res32 {
__u8 cr32_getfh[NFS_FHSIZE];
struct knfsd_fh cr32_getfs;
};
static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
return err;
}
static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_client.cl_ident[0],
&arg32->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg32->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg32->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg32->ca32_client.cl32_fhkeylen);
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg32->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
if(err) return -EFAULT;
return 0;
}
static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_export.ex_client[0],
&arg32->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= copy_from_user(&karg->ca_export.ex_path[0],
&arg32->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg32->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg32->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg32->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg32->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg32->ca32_export.ex32_anon_gid);
karg->ca_export.ex_anon_uid = karg->ca_export.ex_anon_uid;
karg->ca_export.ex_anon_gid = karg->ca_export.ex_anon_gid;
if(err) return -EFAULT;
return 0;
}
static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfd.gd_addr,
&arg32->ca32_getfd.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfd.gd_path,
&arg32->ca32_getfd.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfd.gd_version,
&arg32->ca32_getfd.gd32_version);
if(err) return -EFAULT;
return 0;
}
static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfs.gd_addr,
&arg32->ca32_getfs.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfs.gd_path,
&arg32->ca32_getfs.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfs.gd_maxlen,
&arg32->ca32_getfs.gd32_maxlen);
if(err) return -EFAULT;
return 0;
}
/* This really doesn't need translations, we are only passing
* back a union which contains opaque nfs file handle data.
*/
static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
{
int err;
err = copy_to_user(res32, kres, sizeof(*res32));
if(err) return -EFAULT;
return 0;
}
/* Note: it is necessary to treat cmd_parm as an unsigned int,
* with the corresponding cast to a signed int to insure that the
* proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
* and the register representation of a signed int (msr in 64-bit mode) is performed.
*/
int asmlinkage sys32_nfsservctl(u32 cmd_parm, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
{
int cmd = (int)cmd_parm;
struct nfsctl_arg *karg = NULL;
union nfsctl_res *kres = NULL;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
if(!karg)
return -ENOMEM;
if(res32) {
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!kres) {
kfree(karg);
return -ENOMEM;
}
}
switch(cmd) {
case NFSCTL_SVC:
err = nfs_svc32_trans(karg, arg32);
break;
case NFSCTL_ADDCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_DELCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_EXPORT:
case NFSCTL_UNEXPORT:
err = nfs_exp32_trans(karg, arg32);
break;
case NFSCTL_GETFD:
err = nfs_getfd32_trans(karg, arg32);
break;
case NFSCTL_GETFS:
err = nfs_getfs32_trans(karg, arg32);
break;
default:
err = -EINVAL;
break;
}
if(err)
goto done;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if (err)
goto done;
if((cmd == NFSCTL_GETFD) ||
(cmd == NFSCTL_GETFS))
err = nfs_getfh32_res_trans(kres, res32);
done:
if(karg)
kfree(karg);
if(kres)
kfree(kres);
return err;
}
/* These are here just in case some old sparc32 binary calls it. */ /* These are here just in case some old sparc32 binary calls it. */
asmlinkage long sys32_pause(void) asmlinkage long sys32_pause(void)
......
arch/s390/kernel/compat_linux.c
View file @ 522cbd42
...@@ -797,226 +797,6 @@ sys32_delete_module(const char __user *name_user, unsigned int flags) ...@@ -797,226 +797,6 @@ sys32_delete_module(const char __user *name_user, unsigned int flags)
#endif /* CONFIG_MODULES */ #endif /* CONFIG_MODULES */
/* Stuff for NFS server syscalls... */
struct nfsctl_svc32 {
u16 svc32_port;
s32 svc32_nthreads;
};
struct nfsctl_client32 {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct nfsctl_export32 {
s8 ex32_client[NFSCLNT_IDMAX+1];
s8 ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
s32 ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct nfsctl_fdparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_version;
};
struct nfsctl_fsparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_maxlen;
};
struct nfsctl_arg32 {
s32 ca32_version; /* safeguard */
union {
struct nfsctl_svc32 u32_svc;
struct nfsctl_client32 u32_client;
struct nfsctl_export32 u32_export;
struct nfsctl_fdparm32 u32_getfd;
struct nfsctl_fsparm32 u32_getfs;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_getfd u.u32_getfd
#define ca32_getfs u.u32_getfs
#define ca32_authd u.u32_authd
};
union nfsctl_res32 {
__u8 cr32_getfh[NFS_FHSIZE];
struct knfsd_fh cr32_getfs;
};
static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
return err;
}
static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_client.cl_ident[0],
&arg32->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg32->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg32->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg32->ca32_client.cl32_fhkeylen);
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg32->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
return err;
}
static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_export.ex_client[0],
&arg32->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= copy_from_user(&karg->ca_export.ex_path[0],
&arg32->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg32->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg32->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg32->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg32->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg32->ca32_export.ex32_anon_gid);
karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
return err;
}
static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfd.gd_addr,
&arg32->ca32_getfd.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfd.gd_path,
&arg32->ca32_getfd.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfd.gd_version,
&arg32->ca32_getfd.gd32_version);
return err;
}
static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfs.gd_addr,
&arg32->ca32_getfs.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfs.gd_path,
&arg32->ca32_getfs.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfs.gd_maxlen,
&arg32->ca32_getfs.gd32_maxlen);
return err;
}
/* This really doesn't need translations, we are only passing
* back a union which contains opaque nfs file handle data.
*/
static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
{
return copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0;
}
long asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
{
struct nfsctl_arg *karg = NULL;
union nfsctl_res *kres = NULL;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
if(!karg)
return -ENOMEM;
if(res32) {
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!kres) {
kfree(karg);
return -ENOMEM;
}
}
switch(cmd) {
case NFSCTL_SVC:
err = nfs_svc32_trans(karg, arg32);
break;
case NFSCTL_ADDCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_DELCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_EXPORT:
case NFSCTL_UNEXPORT:
err = nfs_exp32_trans(karg, arg32);
break;
case NFSCTL_GETFD:
err = nfs_getfd32_trans(karg, arg32);
break;
case NFSCTL_GETFS:
err = nfs_getfs32_trans(karg, arg32);
break;
default:
err = -EINVAL;
break;
}
if(err)
goto done;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if (err)
goto done;
if((cmd == NFSCTL_GETFD) ||
(cmd == NFSCTL_GETFS))
err = nfs_getfh32_res_trans(kres, res32);
done:
if(karg)
kfree(karg);
if(kres)
kfree(kres);
return err;
}
/* Translations due to time_t size differences. Which affects all /* Translations due to time_t size differences. Which affects all
sorts of things, like timeval and itimerval. */ sorts of things, like timeval and itimerval. */
......
arch/s390/kernel/compat_wrapper.S
View file @ 522cbd42
...@@ -786,12 +786,12 @@ sys32_poll_wrapper: ...@@ -786,12 +786,12 @@ sys32_poll_wrapper:
lgfr %r4,%r4 # long lgfr %r4,%r4 # long
jg sys_poll # branch to system call jg sys_poll # branch to system call
.globl sys32_nfsservctl_wrapper .globl compat_sys_nfsservctl_wrapper
sys32_nfsservctl_wrapper: compat_sys_nfsservctl_wrapper:
lgfr %r2,%r2 # int lgfr %r2,%r2 # int
llgtr %r3,%r3 # struct nfsctl_arg_emu31 * llgtr %r3,%r3 # struct compat_nfsctl_arg*
llgtr %r4,%r4 # union nfsctl_res_emu31 * llgtr %r4,%r4 # union compat_nfsctl_res*
jg sys32_nfsservctl # branch to system call jg compat_sys_nfsservctl # branch to system call
.globl sys32_setresgid16_wrapper .globl sys32_setresgid16_wrapper
sys32_setresgid16_wrapper: sys32_setresgid16_wrapper:
......
arch/s390/kernel/syscalls.S
View file @ 522cbd42
...@@ -177,7 +177,7 @@ SYSCALL(sys_getresuid16,sys_ni_syscall,sys32_getresuid16_wrapper) /* 165 old get ...@@ -177,7 +177,7 @@ SYSCALL(sys_getresuid16,sys_ni_syscall,sys32_getresuid16_wrapper) /* 165 old get
NI_SYSCALL /* for vm86 */ NI_SYSCALL /* for vm86 */
NI_SYSCALL /* old sys_query_module */ NI_SYSCALL /* old sys_query_module */
SYSCALL(sys_poll,sys_poll,sys32_poll_wrapper) SYSCALL(sys_poll,sys_poll,sys32_poll_wrapper)
SYSCALL(sys_nfsservctl,sys_nfsservctl,sys32_nfsservctl_wrapper) SYSCALL(sys_nfsservctl,sys_nfsservctl,compat_sys_nfsservctl_wrapper)
SYSCALL(sys_setresgid16,sys_ni_syscall,sys32_setresgid16_wrapper) /* 170 old setresgid16 syscall */ SYSCALL(sys_setresgid16,sys_ni_syscall,sys32_setresgid16_wrapper) /* 170 old setresgid16 syscall */
SYSCALL(sys_getresgid16,sys_ni_syscall,sys32_getresgid16_wrapper) /* old getresgid16 syscall */ SYSCALL(sys_getresgid16,sys_ni_syscall,sys32_getresgid16_wrapper) /* old getresgid16 syscall */
SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper) SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper)
......
arch/sparc64/kernel/sys_sparc32.c
View file @ 522cbd42
...@@ -1392,232 +1392,6 @@ sys32_delete_module(const char *name_user) ...@@ -1392,232 +1392,6 @@ sys32_delete_module(const char *name_user)
#endif /* CONFIG_MODULES */ #endif /* CONFIG_MODULES */
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
/* Stuff for NFS server syscalls... */
struct nfsctl_svc32 {
u16 svc32_port;
s32 svc32_nthreads;
};
struct nfsctl_client32 {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct nfsctl_export32 {
s8 ex32_client[NFSCLNT_IDMAX+1];
s8 ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
s32 ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct nfsctl_fdparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_version;
};
struct nfsctl_fsparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_maxlen;
};
struct nfsctl_arg32 {
s32 ca32_version; /* safeguard */
union {
struct nfsctl_svc32 u32_svc;
struct nfsctl_client32 u32_client;
struct nfsctl_export32 u32_export;
struct nfsctl_fdparm32 u32_getfd;
struct nfsctl_fsparm32 u32_getfs;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_getfd u.u32_getfd
#define ca32_getfs u.u32_getfs
};
union nfsctl_res32 {
__u8 cr32_getfh[NFS_FHSIZE];
struct knfsd_fh cr32_getfs;
};
static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
return err;
}
static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_client.cl_ident[0],
&arg32->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg32->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg32->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg32->ca32_client.cl32_fhkeylen);
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg32->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
return (err ? -EFAULT : 0);
}
static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_export.ex_client[0],
&arg32->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= copy_from_user(&karg->ca_export.ex_path[0],
&arg32->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg32->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg32->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg32->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg32->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg32->ca32_export.ex32_anon_gid);
karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
return (err ? -EFAULT : 0);
}
static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfd.gd_addr,
&arg32->ca32_getfd.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfd.gd_path,
&arg32->ca32_getfd.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfd.gd_version,
&arg32->ca32_getfd.gd32_version);
return (err ? -EFAULT : 0);
}
static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = __get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfs.gd_addr,
&arg32->ca32_getfs.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfs.gd_path,
&arg32->ca32_getfs.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfs.gd_maxlen,
&arg32->ca32_getfs.gd32_maxlen);
return (err ? -EFAULT : 0);
}
/* This really doesn't need translations, we are only passing
* back a union which contains opaque nfs file handle data.
*/
static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
{
return (copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0);
}
int asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
{
struct nfsctl_arg *karg = NULL;
union nfsctl_res *kres = NULL;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
if(!karg)
return -ENOMEM;
if(res32) {
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!kres) {
kfree(karg);
return -ENOMEM;
}
}
switch(cmd) {
case NFSCTL_SVC:
err = nfs_svc32_trans(karg, arg32);
break;
case NFSCTL_ADDCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_DELCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_EXPORT:
case NFSCTL_UNEXPORT:
err = nfs_exp32_trans(karg, arg32);
break;
case NFSCTL_GETFD:
err = nfs_getfd32_trans(karg, arg32);
break;
case NFSCTL_GETFS:
err = nfs_getfs32_trans(karg, arg32);
break;
default:
err = -EINVAL;
break;
}
if(err)
goto done;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if (err)
goto done;
if((cmd == NFSCTL_GETFD) ||
(cmd == NFSCTL_GETFS))
err = nfs_getfh32_res_trans(kres, res32);
done:
if(karg)
kfree(karg);
if(kres)
kfree(kres);
return err;
}
#else /* !NFSD */
int asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2)
{
return sys_ni_syscall();
}
#endif
/* Translations due to time_t size differences. Which affects all /* Translations due to time_t size differences. Which affects all
sorts of things, like timeval and itimerval. */ sorts of things, like timeval and itimerval. */
......
arch/sparc64/kernel/systbls.S
View file @ 522cbd42
...@@ -69,7 +69,7 @@ sys_call_table32: ...@@ -69,7 +69,7 @@ sys_call_table32:
.word compat_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall .word compat_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall
/*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler /*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler
.word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep .word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep
/*250*/ .word sys32_mremap, sys32_sysctl, sys_getsid, sys_fdatasync, sys32_nfsservctl /*250*/ .word sys32_mremap, sys32_sysctl, sys_getsid, sys_fdatasync, compat_sys_nfsservctl
.word sys_ni_syscall, compat_clock_settime, compat_clock_gettime, compat_clock_getres, compat_clock_nanosleep .word sys_ni_syscall, compat_clock_settime, compat_clock_gettime, compat_clock_getres, compat_clock_nanosleep
/*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, compat_timer_settime, compat_timer_gettime, sys_timer_getoverrun /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, compat_timer_settime, compat_timer_gettime, sys_timer_getoverrun
.word sys_timer_delete, sys32_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy .word sys_timer_delete, sys32_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
......
arch/x86_64/ia32/ia32entry.S
View file @ 522cbd42
...@@ -474,7 +474,7 @@ ia32_sys_call_table: ...@@ -474,7 +474,7 @@ ia32_sys_call_table:
.quad sys32_vm86_warning /* vm86 */ .quad sys32_vm86_warning /* vm86 */
.quad quiet_ni_syscall /* query_module */ .quad quiet_ni_syscall /* query_module */
.quad sys_poll .quad sys_poll
.quad sys32_nfsservctl .quad compat_sys_nfsservctl
.quad sys_setresgid16 /* 170 */ .quad sys_setresgid16 /* 170 */
.quad sys_getresgid16 .quad sys_getresgid16
.quad sys_prctl .quad sys_prctl
......
arch/x86_64/ia32/sys_ia32.c
View file @ 522cbd42
...@@ -1166,233 +1166,6 @@ long sys32_kill(int pid, int sig) ...@@ -1166,233 +1166,6 @@ long sys32_kill(int pid, int sig)
} }
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
/* Stuff for NFS server syscalls... */
struct nfsctl_svc32 {
u16 svc32_port;
s32 svc32_nthreads;
};
struct nfsctl_client32 {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct nfsctl_export32 {
s8 ex32_client[NFSCLNT_IDMAX+1];
s8 ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
s32 ex32_flags;
compat_pid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct nfsctl_fdparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_version;
};
struct nfsctl_fsparm32 {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
s32 gd32_maxlen;
};
struct nfsctl_arg32 {
s32 ca32_version; /* safeguard */
union {
struct nfsctl_svc32 u32_svc;
struct nfsctl_client32 u32_client;
struct nfsctl_export32 u32_export;
struct nfsctl_fdparm32 u32_getfd;
struct nfsctl_fsparm32 u32_getfs;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_getfd u.u32_getfd
#define ca32_getfs u.u32_getfs
};
union nfsctl_res32 {
__u8 cr32_getfh[NFS_FHSIZE];
struct knfsd_fh cr32_getfs;
};
static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = get_user(karg->ca_version, &arg32->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
return err;
}
static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_client.cl_ident[0],
&arg32->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg32->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg32->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg32->ca32_client.cl32_fhkeylen);
err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg32->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
return err;
}
static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_export.ex_client[0],
&arg32->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= copy_from_user(&karg->ca_export.ex_path[0],
&arg32->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg32->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg32->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg32->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg32->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg32->ca32_export.ex32_anon_gid);
SET_UID(karg->ca_export.ex_anon_uid, karg->ca_export.ex_anon_uid);
SET_GID(karg->ca_export.ex_anon_gid, karg->ca_export.ex_anon_gid);
return err;
}
static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfd.gd_addr,
&arg32->ca32_getfd.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfd.gd_path,
&arg32->ca32_getfd.gd32_path,
(NFS_MAXPATHLEN+1));
err |= get_user(karg->ca_getfd.gd_version,
&arg32->ca32_getfd.gd32_version);
return err;
}
static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
{
int err;
err = get_user(karg->ca_version, &arg32->ca32_version);
err |= copy_from_user(&karg->ca_getfs.gd_addr,
&arg32->ca32_getfs.gd32_addr,
(sizeof(struct sockaddr)));
err |= copy_from_user(&karg->ca_getfs.gd_path,
&arg32->ca32_getfs.gd32_path,
(NFS_MAXPATHLEN+1));
err |= get_user(karg->ca_getfs.gd_maxlen,
&arg32->ca32_getfs.gd32_maxlen);
return err;
}
/* This really doesn't need translations, we are only passing
* back a union which contains opaque nfs file handle data.
*/
static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
{
return copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0;
}
long asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
{
struct nfsctl_arg *karg = NULL;
union nfsctl_res *kres = NULL;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
if(!karg)
return -ENOMEM;
if(res32) {
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!kres) {
kfree(karg);
return -ENOMEM;
}
}
switch(cmd) {
case NFSCTL_SVC:
err = nfs_svc32_trans(karg, arg32);
break;
case NFSCTL_ADDCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_DELCLIENT:
err = nfs_clnt32_trans(karg, arg32);
break;
case NFSCTL_EXPORT:
case NFSCTL_UNEXPORT:
err = nfs_exp32_trans(karg, arg32);
break;
case NFSCTL_GETFD:
err = nfs_getfd32_trans(karg, arg32);
break;
case NFSCTL_GETFS:
err = nfs_getfs32_trans(karg, arg32);
break;
default:
err = -EINVAL;
break;
}
if(err)
goto done;
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if (err)
goto done;
if((cmd == NFSCTL_GETFD) ||
(cmd == NFSCTL_GETFS))
err = nfs_getfh32_res_trans(kres, res32);
done:
if(karg)
kfree(karg);
if(kres)
kfree(kres);
return err;
}
#else /* !NFSD */
long asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2)
{
return sys_ni_syscall();
}
#endif
long sys32_io_setup(unsigned nr_reqs, u32 *ctx32p) long sys32_io_setup(unsigned nr_reqs, u32 *ctx32p)
{ {
long ret; long ret;
......
fs/compat.c
View file @ 522cbd42
...@@ -1393,3 +1393,242 @@ compat_sys_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp ...@@ -1393,3 +1393,242 @@ compat_sys_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp
return ret; return ret;
} }
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
/* Stuff for NFS server syscalls... */
struct compat_nfsctl_svc {
u16 svc32_port;
s32 svc32_nthreads;
};
struct compat_nfsctl_client {
s8 cl32_ident[NFSCLNT_IDMAX+1];
s32 cl32_naddr;
struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
s32 cl32_fhkeytype;
s32 cl32_fhkeylen;
u8 cl32_fhkey[NFSCLNT_KEYMAX];
};
struct compat_nfsctl_export {
char ex32_client[NFSCLNT_IDMAX+1];
char ex32_path[NFS_MAXPATHLEN+1];
compat_dev_t ex32_dev;
compat_ino_t ex32_ino;
compat_int_t ex32_flags;
compat_uid_t ex32_anon_uid;
compat_gid_t ex32_anon_gid;
};
struct compat_nfsctl_fdparm {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
compat_int_t gd32_version;
};
struct compat_nfsctl_fsparm {
struct sockaddr gd32_addr;
s8 gd32_path[NFS_MAXPATHLEN+1];
compat_int_t gd32_maxlen;
};
struct compat_nfsctl_arg {
compat_int_t ca32_version; /* safeguard */
union {
struct compat_nfsctl_svc u32_svc;
struct compat_nfsctl_client u32_client;
struct compat_nfsctl_export u32_export;
struct compat_nfsctl_fdparm u32_getfd;
struct compat_nfsctl_fsparm u32_getfs;
} u;
#define ca32_svc u.u32_svc
#define ca32_client u.u32_client
#define ca32_export u.u32_export
#define ca32_getfd u.u32_getfd
#define ca32_getfs u.u32_getfs
};
union compat_nfsctl_res {
__u8 cr32_getfh[NFS_FHSIZE];
struct knfsd_fh cr32_getfs;
};
static int compat_nfs_svc_trans(struct nfsctl_arg *karg, struct compat_nfsctl_arg *arg)
{
int err;
err = access_ok(VERIFY_READ, &arg->ca32_svc, sizeof(arg->ca32_svc));
err |= get_user(karg->ca_version, &arg->ca32_version);
err |= __get_user(karg->ca_svc.svc_port, &arg->ca32_svc.svc32_port);
err |= __get_user(karg->ca_svc.svc_nthreads, &arg->ca32_svc.svc32_nthreads);
return (err) ? -EFAULT : 0;
}
static int compat_nfs_clnt_trans(struct nfsctl_arg *karg, struct compat_nfsctl_arg *arg)
{
int err;
err = access_ok(VERIFY_READ, &arg->ca32_client, sizeof(arg->ca32_client));
err |= get_user(karg->ca_version, &arg->ca32_version);
err |= __copy_from_user(&karg->ca_client.cl_ident[0],
&arg->ca32_client.cl32_ident[0],
NFSCLNT_IDMAX);
err |= __get_user(karg->ca_client.cl_naddr, &arg->ca32_client.cl32_naddr);
err |= __copy_from_user(&karg->ca_client.cl_addrlist[0],
&arg->ca32_client.cl32_addrlist[0],
(sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
err |= __get_user(karg->ca_client.cl_fhkeytype,
&arg->ca32_client.cl32_fhkeytype);
err |= __get_user(karg->ca_client.cl_fhkeylen,
&arg->ca32_client.cl32_fhkeylen);
err |= __copy_from_user(&karg->ca_client.cl_fhkey[0],
&arg->ca32_client.cl32_fhkey[0],
NFSCLNT_KEYMAX);
return (err) ? -EFAULT : 0;
}
static int compat_nfs_exp_trans(struct nfsctl_arg *karg, struct compat_nfsctl_arg *arg)
{
int err;
err = access_ok(VERIFY_READ, &arg->ca32_export, sizeof(arg->ca32_export));
err |= get_user(karg->ca_version, &arg->ca32_version);
err |= __copy_from_user(&karg->ca_export.ex_client[0],
&arg->ca32_export.ex32_client[0],
NFSCLNT_IDMAX);
err |= __copy_from_user(&karg->ca_export.ex_path[0],
&arg->ca32_export.ex32_path[0],
NFS_MAXPATHLEN);
err |= __get_user(karg->ca_export.ex_dev,
&arg->ca32_export.ex32_dev);
err |= __get_user(karg->ca_export.ex_ino,
&arg->ca32_export.ex32_ino);
err |= __get_user(karg->ca_export.ex_flags,
&arg->ca32_export.ex32_flags);
err |= __get_user(karg->ca_export.ex_anon_uid,
&arg->ca32_export.ex32_anon_uid);
err |= __get_user(karg->ca_export.ex_anon_gid,
&arg->ca32_export.ex32_anon_gid);
SET_UID(karg->ca_export.ex_anon_uid, karg->ca_export.ex_anon_uid);
SET_GID(karg->ca_export.ex_anon_gid, karg->ca_export.ex_anon_gid);
return (err) ? -EFAULT : 0;
}
static int compat_nfs_getfd_trans(struct nfsctl_arg *karg, struct compat_nfsctl_arg *arg)
{
int err;
err = access_ok(VERIFY_READ, &arg->ca32_getfd, sizeof(arg->ca32_getfd));
err |= get_user(karg->ca_version, &arg->ca32_version);
err |= __copy_from_user(&karg->ca_getfd.gd_addr,
&arg->ca32_getfd.gd32_addr,
(sizeof(struct sockaddr)));
err |= __copy_from_user(&karg->ca_getfd.gd_path,
&arg->ca32_getfd.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfd.gd_version,
&arg->ca32_getfd.gd32_version);
return (err) ? -EFAULT : 0;
}
static int compat_nfs_getfs_trans(struct nfsctl_arg *karg, struct compat_nfsctl_arg *arg)
{
int err;
err = access_ok(VERIFY_READ, &arg->ca32_getfs, sizeof(arg->ca32_getfs));
err |= get_user(karg->ca_version, &arg->ca32_version);
err |= __copy_from_user(&karg->ca_getfs.gd_addr,
&arg->ca32_getfs.gd32_addr,
(sizeof(struct sockaddr)));
err |= __copy_from_user(&karg->ca_getfs.gd_path,
&arg->ca32_getfs.gd32_path,
(NFS_MAXPATHLEN+1));
err |= __get_user(karg->ca_getfs.gd_maxlen,
&arg->ca32_getfs.gd32_maxlen);
return (err) ? -EFAULT : 0;
}
/* This really doesn't need translations, we are only passing
* back a union which contains opaque nfs file handle data.
*/
static int compat_nfs_getfh_res_trans(union nfsctl_res *kres, union compat_nfsctl_res *res)
{
int err;
err = copy_to_user(res, kres, sizeof(*res));
return (err) ? -EFAULT : 0;
}
asmlinkage long compat_sys_nfsservctl(int cmd, struct compat_nfsctl_arg *arg,
union compat_nfsctl_res *res)
{
struct nfsctl_arg *karg;
union nfsctl_res *kres;
mm_segment_t oldfs;
int err;
karg = kmalloc(sizeof(*karg), GFP_USER);
kres = kmalloc(sizeof(*kres), GFP_USER);
if(!karg || !kres) {
err = -ENOMEM;
goto done;
}
switch(cmd) {
case NFSCTL_SVC:
err = compat_nfs_svc_trans(karg, arg);
break;
case NFSCTL_ADDCLIENT:
err = compat_nfs_clnt_trans(karg, arg);
break;
case NFSCTL_DELCLIENT:
err = compat_nfs_clnt_trans(karg, arg);
break;
case NFSCTL_EXPORT:
case NFSCTL_UNEXPORT:
err = compat_nfs_exp_trans(karg, arg);
break;
case NFSCTL_GETFD:
err = compat_nfs_getfd_trans(karg, arg);
break;
case NFSCTL_GETFS:
err = compat_nfs_getfs_trans(karg, arg);
break;
default:
err = -EINVAL;
goto done;
}
oldfs = get_fs();
set_fs(KERNEL_DS);
err = sys_nfsservctl(cmd, karg, kres);
set_fs(oldfs);
if (err)
goto done;
if((cmd == NFSCTL_GETFD) ||
(cmd == NFSCTL_GETFS))
err = compat_nfs_getfh_res_trans(kres, res);
done:
kfree(karg);
kfree(kres);
return err;
}
#else /* !NFSD */
long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
{
return sys_ni_syscall();
}
#endif
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