}
#endif /* HAVE_SET_RESTORE_SIGMASK */
-#if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
-/* 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 __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_svc, sizeof(arg->ca32_svc)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __get_user(karg->ca_svc.svc_port, &arg->ca32_svc.svc32_port) ||
- __get_user(karg->ca_svc.svc_nthreads,
- &arg->ca32_svc.svc32_nthreads))
- return -EFAULT;
- return 0;
-}
-
-static int compat_nfs_clnt_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_client,
- sizeof(arg->ca32_client)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_client.cl_ident[0],
- &arg->ca32_client.cl32_ident[0],
- NFSCLNT_IDMAX) ||
- __get_user(karg->ca_client.cl_naddr,
- &arg->ca32_client.cl32_naddr) ||
- __copy_from_user(&karg->ca_client.cl_addrlist[0],
- &arg->ca32_client.cl32_addrlist[0],
- (sizeof(struct in_addr) * NFSCLNT_ADDRMAX)) ||
- __get_user(karg->ca_client.cl_fhkeytype,
- &arg->ca32_client.cl32_fhkeytype) ||
- __get_user(karg->ca_client.cl_fhkeylen,
- &arg->ca32_client.cl32_fhkeylen) ||
- __copy_from_user(&karg->ca_client.cl_fhkey[0],
- &arg->ca32_client.cl32_fhkey[0],
- NFSCLNT_KEYMAX))
- return -EFAULT;
-
- return 0;
-}
-
-static int compat_nfs_exp_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_export,
- sizeof(arg->ca32_export)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_export.ex_client[0],
- &arg->ca32_export.ex32_client[0],
- NFSCLNT_IDMAX) ||
- __copy_from_user(&karg->ca_export.ex_path[0],
- &arg->ca32_export.ex32_path[0],
- NFS_MAXPATHLEN) ||
- __get_user(karg->ca_export.ex_dev,
- &arg->ca32_export.ex32_dev) ||
- __get_user(karg->ca_export.ex_ino,
- &arg->ca32_export.ex32_ino) ||
- __get_user(karg->ca_export.ex_flags,
- &arg->ca32_export.ex32_flags) ||
- __get_user(karg->ca_export.ex_anon_uid,
- &arg->ca32_export.ex32_anon_uid) ||
- __get_user(karg->ca_export.ex_anon_gid,
- &arg->ca32_export.ex32_anon_gid))
- return -EFAULT;
- 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 0;
-}
-
-static int compat_nfs_getfd_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_getfd,
- sizeof(arg->ca32_getfd)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_getfd.gd_addr,
- &arg->ca32_getfd.gd32_addr,
- (sizeof(struct sockaddr))) ||
- __copy_from_user(&karg->ca_getfd.gd_path,
- &arg->ca32_getfd.gd32_path,
- (NFS_MAXPATHLEN+1)) ||
- __get_user(karg->ca_getfd.gd_version,
- &arg->ca32_getfd.gd32_version))
- return -EFAULT;
-
- return 0;
-}
-
-static int compat_nfs_getfs_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ,&arg->ca32_getfs,sizeof(arg->ca32_getfs)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_getfs.gd_addr,
- &arg->ca32_getfs.gd32_addr,
- (sizeof(struct sockaddr))) ||
- __copy_from_user(&karg->ca_getfs.gd_path,
- &arg->ca32_getfs.gd32_path,
- (NFS_MAXPATHLEN+1)) ||
- __get_user(karg->ca_getfs.gd_maxlen,
- &arg->ca32_getfs.gd32_maxlen))
- 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 compat_nfs_getfh_res_trans(union nfsctl_res *kres,
- union compat_nfsctl_res __user *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 __user *arg,
- union compat_nfsctl_res __user *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;
- break;
- }
-
- if (err)
- goto done;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- /* The __user pointer casts are valid because of the set_fs() */
- err = sys_nfsservctl(cmd, (void __user *) karg, (void __user *) 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
#ifdef CONFIG_EPOLL
git.openpandora.org / pandora-kernel.git / blobdiff