This patch removes the arch-specific sys32_nfsservctl and creates
compat_sys_nfsservctl. It also simplifies the compat function a bit.
Comments appreciated.
Patch against 2.5.67-bk6.
thanks,
randolph
-- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/diff -uNrp linux-2.5.67/arch/parisc/kernel/sys_parisc32.c linux-compat/arch/parisc/kernel/sys_parisc32.c --- linux-2.5.67/arch/parisc/kernel/sys_parisc32.c 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/parisc/kernel/sys_parisc32.c 2003-04-16 20:38:27.000000000 -0700 @@ -29,19 +29,14 @@ #include <linux/shm.h> #include <linux/slab.h> #include <linux/uio.h> -#include <linux/nfs_fs.h> #include <linux/smb_fs.h> #include <linux/smb_mount.h> #include <linux/ncp_fs.h> #include <linux/quota.h> -#include <linux/sunrpc/svc.h> -#include <linux/nfsd/nfsd.h> -#include <linux/nfsd/cache.h> -#include <linux/nfsd/xdr.h> -#include <linux/nfsd/syscall.h> #include <linux/poll.h> #include <linux/personality.h> #include <linux/stat.h> +#include <linux/skbuff.h> #include <linux/filter.h> /* for setsockopt() */ #include <linux/icmpv6.h> /* for setsockopt() */ #include <linux/netfilter_ipv4/ip_queue.h> /* for setsockopt() */ @@ -73,34 +68,6 @@ #define DBG(x) #endif -/* For this source file, we want overflow handling. */ - -#undef high2lowuid -#undef high2lowgid -#undef low2highuid -#undef low2highgid -#undef SET_UID16 -#undef SET_GID16 -#undef NEW_TO_OLD_UID -#undef NEW_TO_OLD_GID -#undef SET_OLDSTAT_UID -#undef SET_OLDSTAT_GID -#undef SET_STAT_UID -#undef SET_STAT_GID - -#define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid) -#define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid) -#define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid) -#define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid) -#define SET_UID16(var, uid) var = high2lowuid(uid) -#define SET_GID16(var, gid) var = high2lowgid(gid) -#define NEW_TO_OLD_UID(uid) high2lowuid(uid) -#define NEW_TO_OLD_GID(gid) high2lowgid(gid) -#define SET_OLDSTAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid) -#define SET_OLDSTAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid) -#define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid) -#define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid) - /* * count32() counts the number of arguments/envelopes. It is basically * a copy of count() from fs/exec.c, except that it works @@ -1270,94 +1237,6 @@ asmlinkage long sys32_msgrcv(int msqid, return err; } -/* EXPORT/UNEXPORT */ -struct nfsctl_export32 { - char ex_client[NFSCLNT_IDMAX+1]; - char ex_path[NFS_MAXPATHLEN+1]; - __kernel_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; -} - #include <linux/quota.h> struct dqblk32 { diff -uNrp linux-2.5.67/arch/parisc/kernel/syscall.S linux-compat/arch/parisc/kernel/syscall.S --- linux-2.5.67/arch/parisc/kernel/syscall.S 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/parisc/kernel/syscall.S 2003-04-16 20:38:27.000000000 -0700 @@ -547,7 +547,7 @@ sys_call_table: ENTRY_SAME(ni_syscall) /* query_module */ ENTRY_SAME(poll) /* structs contain pointers and an in_addr... */ - ENTRY_DIFF(nfsservctl) + ENTRY_COMP(nfsservctl) ENTRY_SAME(setresgid) /* 170 */ ENTRY_SAME(getresgid) ENTRY_SAME(prctl) diff -uNrp linux-2.5.67/arch/ppc64/kernel/misc.S linux-compat/arch/ppc64/kernel/misc.S --- linux-2.5.67/arch/ppc64/kernel/misc.S 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/ppc64/kernel/misc.S 2003-04-16 20:38:27.000000000 -0700 @@ -670,7 +670,7 @@ _GLOBAL(sys_call_table32) .llong .sys_getresuid /* 165 */ .llong .sys_ni_syscall /* old query_module syscall */ .llong .sys_poll - .llong .sys32_nfsservctl + .llong .compat_sys_nfsservctl .llong .sys_setresgid .llong .sys_getresgid /* 170 */ .llong .sys32_prctl diff -uNrp linux-2.5.67/arch/ppc64/kernel/sys_ppc32.c linux-compat/arch/ppc64/kernel/sys_ppc32.c --- linux-2.5.67/arch/ppc64/kernel/sys_ppc32.c 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/ppc64/kernel/sys_ppc32.c 2003-04-16 20:38:27.000000000 -0700 @@ -859,246 +859,6 @@ asmlinkage long sys32_adjtimex(struct ti 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 -#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); - - 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. */ asmlinkage long sys32_pause(void) diff -uNrp linux-2.5.67/arch/s390/kernel/compat_linux.c linux-compat/arch/s390/kernel/compat_linux.c --- linux-2.5.67/arch/s390/kernel/compat_linux.c 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/s390/kernel/compat_linux.c 2003-04-16 20:38:27.000000000 -0700 @@ -2066,230 +2066,6 @@ sys32_delete_module(const char *name_use #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; -} - -/* -asmlinkage long sys_ni_syscall(void); -*/ - -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; -} - /* Translations due to time_t size differences. Which affects all sorts of things, like timeval and itimerval. */ diff -uNrp linux-2.5.67/arch/s390/kernel/compat_wrapper.S linux-compat/arch/s390/kernel/compat_wrapper.S --- linux-2.5.67/arch/s390/kernel/compat_wrapper.S 2003-04-15 22:41:21.000000000 -0700 +++ linux-compat/arch/s390/kernel/compat_wrapper.S 2003-04-16 20:38:27.000000000 -0700 @@ -782,12 +782,12 @@ sys32_poll_wrapper: lgfr %r4,%r4 # long jg sys_poll # branch to system call - .globl sys32_nfsservctl_wrapper -sys32_nfsservctl_wrapper: + .globl compat_sys_nfsservctl_wrapper +compat_sys_nfsservctl_wrapper: lgfr %r2,%r2 # int llgtr %r3,%r3 # struct nfsctl_arg_emu31 * llgtr %r4,%r4 # union nfsctl_res_emu31 * - jg sys32_nfsservctl # branch to system call + jg compat_sys_nfsservctl # branch to system call .globl sys32_setresgid16_wrapper sys32_setresgid16_wrapper: diff -uNrp linux-2.5.67/arch/s390/kernel/syscalls.S linux-compat/arch/s390/kernel/syscalls.S --- linux-2.5.67/arch/s390/kernel/syscalls.S 2003-04-15 22:49:32.000000000 -0700 +++ linux-compat/arch/s390/kernel/syscalls.S 2003-04-16 20:39:12.000000000 -0700 @@ -177,7 +177,7 @@ SYSCALL(sys_getresuid16,sys_ni_syscall,s NI_SYSCALL /* for vm86 */ NI_SYSCALL /* old sys_query_module */ 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_getresgid16,sys_ni_syscall,sys32_getresgid16_wrapper) /* old getresgid16 syscall */ SYSCALL(sys_prctl,sys_prctl,sys32_prctl_wrapper) diff -uNrp linux-2.5.67/arch/sparc64/kernel/sys_sparc32.c linux-compat/arch/sparc64/kernel/sys_sparc32.c --- linux-2.5.67/arch/sparc64/kernel/sys_sparc32.c 2003-04-15 22:41:22.000000000 -0700 +++ linux-compat/arch/sparc64/kernel/sys_sparc32.c 2003-04-16 20:38:27.000000000 -0700 @@ -2208,234 +2208,6 @@ sys32_delete_module(const char *name_use #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 -#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 ? -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 */ -extern asmlinkage long sys_ni_syscall(void); -int asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2) -{ - return sys_ni_syscall(); -} -#endif - /* Translations due to time_t size differences. Which affects all sorts of things, like timeval and itimerval. */ diff -uNrp linux-2.5.67/arch/sparc64/kernel/systbls.S linux-compat/arch/sparc64/kernel/systbls.S --- linux-2.5.67/arch/sparc64/kernel/systbls.S 2003-04-15 22:41:22.000000000 -0700 +++ linux-compat/arch/sparc64/kernel/systbls.S 2003-04-16 20:38:27.000000000 -0700 @@ -69,7 +69,7 @@ sys_call_table32: .word sys_ni_syscall, sys_llseek, sys_mlock, sys_munlock, sys_mlockall /*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 -/*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_aplib /* Now the 64-bit native Linux syscall table. */ diff -uNrp linux-2.5.67/arch/x86_64/ia32/ia32entry.S linux-compat/arch/x86_64/ia32/ia32entry.S --- linux-2.5.67/arch/x86_64/ia32/ia32entry.S 2003-04-15 22:41:22.000000000 -0700 +++ linux-compat/arch/x86_64/ia32/ia32entry.S 2003-04-16 20:38:27.000000000 -0700 @@ -373,7 +373,7 @@ ia32_sys_call_table: .quad sys32_vm86_warning /* vm86 */ .quad quiet_ni_syscall /* query_module */ .quad sys_poll - .quad sys32_nfsservctl + .quad compat_sys_nfsservctl .quad sys_setresgid16 /* 170 */ .quad sys_getresgid16 .quad sys_prctl diff -uNrp linux-2.5.67/arch/x86_64/ia32/sys_ia32.c linux-compat/arch/x86_64/ia32/sys_ia32.c --- linux-2.5.67/arch/x86_64/ia32/sys_ia32.c 2003-04-15 22:41:22.000000000 -0700 +++ linux-compat/arch/x86_64/ia32/sys_ia32.c 2003-04-16 20:38:27.000000000 -0700 @@ -1802,235 +1802,6 @@ 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 -#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)); -} - -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 */ -extern asmlinkage long sys_ni_syscall(void); -long asmlinkage sys32_nfsservctl(int cmd, void *notused, void *notused2) -{ - return sys_ni_syscall(); -} -#endif - long sys32_module_warning(void) { printk(KERN_INFO "%s: 32bit 2.4.x modutils not supported on 64bit kernel\n", diff -uNrp linux-2.5.67/fs/compat.c linux-compat/fs/compat.c --- linux-2.5.67/fs/compat.c 2003-04-07 10:31:15.000000000 -0700 +++ linux-compat/fs/compat.c 2003-04-16 20:38:27.000000000 -0700 @@ -17,6 +17,7 @@ #include <linux/time.h> #include <linux/fs.h> #include <linux/fcntl.h> +#include <linux/highuid.h> #include <linux/namei.h> #include <linux/file.h> #include <linux/vfs.h> @@ -244,3 +245,165 @@ asmlinkage long compat_sys_fcntl(unsigne return compat_sys_fcntl64(fd, cmd, arg); } + +#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE) + +#include <linux/sunrpc/svc.h> +#include <linux/nfsd/nfsd.h> +#include <linux/nfsd/syscall.h> + +static int compat_nfs_svc_trans(struct nfsctl_arg *karg, + struct compat_nfsctl_arg *carg) +{ + int err; + + err = __get_user(karg->ca_version, &carg->ca_version); + err |= __get_user(karg->ca_svc.svc_port, &carg->ca_svc.svc_port); + err |= __get_user(karg->ca_svc.svc_nthreads, &carg->ca_svc.svc_nthreads); + return err; +} + +static int compat_nfs_clnt_trans(struct nfsctl_arg *karg, + struct compat_nfsctl_arg *carg) +{ + int err; + + err = __get_user(karg->ca_version, &carg->ca_version); + err |= copy_from_user(&karg->ca_client.cl_ident[0], + &carg->ca_client.cl_ident[0], + NFSCLNT_IDMAX+1); + err |= __get_user(karg->ca_client.cl_naddr, &carg->ca_client.cl_naddr); + err |= copy_from_user(&karg->ca_client.cl_addrlist[0], + &carg->ca_client.cl_addrlist[0], + sizeof(struct in_addr) * NFSCLNT_ADDRMAX); + err |= __get_user(karg->ca_client.cl_fhkeytype, + &carg->ca_client.cl_fhkeytype); + err |= __get_user(karg->ca_client.cl_fhkeylen, + &carg->ca_client.cl_fhkeylen); + err |= copy_from_user(&karg->ca_client.cl_fhkey[0], + &carg->ca_client.cl_fhkey[0], + NFSCLNT_KEYMAX); + return err; +} + +static int compat_nfs_exp_trans(struct nfsctl_arg *karg, + struct compat_nfsctl_arg *carg) +{ + int err; + + err = __get_user(karg->ca_version, &carg->ca_version); + err |= copy_from_user(&karg->ca_export.ex_client[0], + &carg->ca_export.ex_client[0], + NFSCLNT_IDMAX+1); + err |= copy_from_user(&karg->ca_export.ex_path[0], + &carg->ca_export.ex_path[0], + NFS_MAXPATHLEN+1); + err |= __get_user(karg->ca_export.ex_dev, + &carg->ca_export.ex_dev); + err |= __get_user(karg->ca_export.ex_ino, + &carg->ca_export.ex_ino); + err |= __get_user(karg->ca_export.ex_flags, + &carg->ca_export.ex_flags); + err |= __get_user(karg->ca_export.ex_anon_uid, + &carg->ca_export.ex_anon_uid); + err |= __get_user(karg->ca_export.ex_anon_gid, + &carg->ca_export.ex_anon_gid); + karg->ca_export.ex_anon_uid = NEW_TO_OLD_UID(karg->ca_export.ex_anon_uid); + karg->ca_export.ex_anon_gid = NEW_TO_OLD_GID(karg->ca_export.ex_anon_gid); + + return err; +} + +static int compat_nfs_getfd_trans(struct nfsctl_arg *karg, + struct compat_nfsctl_arg *carg) +{ + int err; + + err = __get_user(karg->ca_version, &carg->ca_version); + err |= copy_from_user(&karg->ca_getfd.gd_addr, + &carg->ca_getfd.gd_addr, + sizeof(struct sockaddr)); + err |= copy_from_user(&karg->ca_getfd.gd_path, + &carg->ca_getfd.gd_path, + NFS_MAXPATHLEN+1); + err |= __get_user(karg->ca_getfd.gd_version, + &carg->ca_getfd.gd_version); + return err; +} + +static int compat_nfs_getfs_trans(struct nfsctl_arg *karg, + struct compat_nfsctl_arg *carg) +{ + int err; + + err = __get_user(karg->ca_version, &carg->ca_version); + err |= copy_from_user(&karg->ca_getfs.gd_addr, + &carg->ca_getfs.gd_addr, + sizeof(struct sockaddr)); + err |= copy_from_user(&karg->ca_getfs.gd_path, + &carg->ca_getfs.gd_path, + NFS_MAXPATHLEN+1); + err |= __get_user(karg->ca_getfs.gd_maxlen, + &carg->ca_getfs.gd_maxlen); + return err; +} + +static struct { + int (*translate)(struct nfsctl_arg *, struct compat_nfsctl_arg *); +} compat_nfs_map[] = { + [NFSCTL_SVC] = { .translate = compat_nfs_svc_trans }, + [NFSCTL_ADDCLIENT] = { .translate = compat_nfs_clnt_trans }, + [NFSCTL_DELCLIENT] = { .translate = compat_nfs_clnt_trans }, + [NFSCTL_EXPORT] = { .translate = compat_nfs_exp_trans }, + [NFSCTL_UNEXPORT] = { .translate = compat_nfs_exp_trans }, + [NFSCTL_GETFD] = { .translate = compat_nfs_getfd_trans }, + [NFSCTL_GETFS] = { .translate = compat_nfs_getfs_trans }, +}; + +long asmlinkage compat_sys_nfsservctl(int cmd, struct compat_nfsctl_arg *carg, + union nfsctl_res *res) +{ + struct nfsctl_arg *karg = NULL; + union nfsctl_res *kres = NULL; + mm_segment_t oldfs; + int ret; + + if (cmd < 0 || cmd >= sizeof(compat_nfs_map)/sizeof(compat_nfs_map[0]) + || !compat_nfs_map[cmd].translate) + return -EINVAL; + + karg = kmalloc(sizeof(*karg), GFP_USER); + kres = kmalloc(sizeof(*kres), GFP_USER); + if (!karg || !kres) { + ret = -ENOMEM; + goto out; + } + + ret = compat_nfs_map[cmd].translate(karg, carg) ? -EFAULT : 0; + if(ret) + goto out; + + oldfs = get_fs(); + set_fs(KERNEL_DS); + ret = sys_nfsservctl(cmd, karg, kres); + set_fs(oldfs); + + if (!ret && res && (cmd == NFSCTL_GETFD || cmd == NFSCTL_GETFS)) + ret = copy_to_user(res, kres, sizeof(*res)) ? -EFAULT : 0; + +out: + if (karg) + kfree(karg); + if (kres) + kfree(kres); + return ret; +} + +#else +long asmlinkage compat_sys_nfsservctl(int cmd, struct compat_nfsctl_arg *carg, + union nfsctl_res *res) +{ + return -ENOSYS; +} +#endif + diff -uNrp linux-2.5.67/include/linux/nfsd/syscall.h linux-compat/include/linux/nfsd/syscall.h --- linux-2.5.67/include/linux/nfsd/syscall.h 2003-04-15 22:41:29.000000000 -0700 +++ linux-compat/include/linux/nfsd/syscall.h 2003-04-16 20:38:27.000000000 -0700 @@ -112,6 +112,57 @@ union nfsctl_res { struct knfsd_fh cr_getfs; }; +#ifdef CONFIG_COMPAT +#include <linux/compat.h> + +struct compat_nfsctl_svc { + unsigned short svc_port; + compat_int_t svc_nthreads; +}; + +struct compat_nfsctl_client { + char cl_ident[NFSCLNT_IDMAX+1]; + compat_int_t cl_naddr; + struct in_addr cl_addrlist[NFSCLNT_ADDRMAX]; + compat_int_t cl_fhkeytype; + compat_int_t cl_fhkeylen; + unsigned char cl_fhkey[NFSCLNT_KEYMAX]; +}; + +struct compat_nfsctl_export { + char ex_client[NFSCLNT_IDMAX+1]; + char ex_path[NFS_MAXPATHLEN+1]; + compat_dev_t ex_dev; + compat_ino_t ex_ino; + compat_int_t ex_flags; + compat_uid_t ex_anon_uid; + compat_gid_t ex_anon_gid; +}; + +struct compat_nfsctl_fdparm { + struct sockaddr gd_addr; + char gd_path[NFS_MAXPATHLEN+1]; + compat_int_t gd_version; +}; + +struct compat_nfsctl_fsparm { + struct sockaddr gd_addr; + char gd_path[NFS_MAXPATHLEN+1]; + compat_int_t gd_maxlen; +}; + +struct compat_nfsctl_arg { + compat_int_t ca_version; /* safeguard */ + union { + struct compat_nfsctl_svc u_svc; + struct compat_nfsctl_client u_client; + struct compat_nfsctl_export u_export; + struct compat_nfsctl_fdparm u_getfd; + struct compat_nfsctl_fsparm u_getfs; + } u; +}; +#endif + #ifdef __KERNEL__ /* * Kernel syscall implementation. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Apr 23 2003 - 22:00:20 EST