diff options
Diffstat (limited to 'sys/amd64/ia32/ia32_misc.c')
| -rw-r--r-- | sys/amd64/ia32/ia32_misc.c | 1339 |
1 files changed, 1339 insertions, 0 deletions
diff --git a/sys/amd64/ia32/ia32_misc.c b/sys/amd64/ia32/ia32_misc.c new file mode 100644 index 0000000..8b28bce --- /dev/null +++ b/sys/amd64/ia32/ia32_misc.c @@ -0,0 +1,1339 @@ +/*- + * Copyright (c) 2002 Doug Rabson + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/dkstat.h> +#include <sys/exec.h> +#include <sys/fcntl.h> +#include <sys/filedesc.h> +#include <sys/imgact.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/file.h> /* Must come after sys/malloc.h */ +#include <sys/mman.h> +#include <sys/module.h> +#include <sys/mount.h> +#include <sys/mutex.h> +#include <sys/namei.h> +#include <sys/param.h> +#include <sys/proc.h> +#include <sys/reboot.h> +#include <sys/resource.h> +#include <sys/resourcevar.h> +#include <sys/selinfo.h> +#include <sys/pipe.h> /* Must come after sys/selinfo.h */ +#include <sys/signal.h> +#include <sys/signalvar.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/stat.h> +#include <sys/sysctl.h> +#include <sys/sysent.h> +#include <sys/sysproto.h> +#include <sys/systm.h> +#include <sys/unistd.h> +#include <sys/user.h> +#include <sys/utsname.h> +#include <sys/vnode.h> + +#include <vm/vm.h> +#include <vm/vm_kern.h> +#include <vm/vm_param.h> +#include <vm/pmap.h> +#include <vm/vm_map.h> +#include <vm/vm_object.h> +#include <vm/vm_extern.h> + +#include <ia64/ia32/ia32_util.h> +#include <ia64/ia32/ia32.h> +#include <ia64/ia32/ia32_proto.h> + +static const char ia32_emul_path[] = "/compat/ia32"; +/* + * [ taken from the linux emulator ] + * Search an alternate path before passing pathname arguments on + * to system calls. Useful for keeping a separate 'emulation tree'. + * + * If cflag is set, we check if an attempt can be made to create + * the named file, i.e. we check if the directory it should + * be in exists. + */ +int +ia32_emul_find(td, sgp, prefix, path, pbuf, cflag) + struct thread *td; + caddr_t *sgp; /* Pointer to stackgap memory */ + const char *prefix; + char *path; + char **pbuf; + int cflag; +{ + int error; + size_t len, sz; + char *buf, *cp, *ptr; + struct ucred *ucred; + struct nameidata nd; + struct nameidata ndroot; + struct vattr vat; + struct vattr vatroot; + + buf = (char *) malloc(MAXPATHLEN, M_TEMP, M_WAITOK); + *pbuf = path; + + for (ptr = buf; (*ptr = *prefix) != '\0'; ptr++, prefix++) + continue; + + sz = MAXPATHLEN - (ptr - buf); + + /* + * If sgp is not given then the path is already in kernel space + */ + if (sgp == NULL) + error = copystr(path, ptr, sz, &len); + else + error = copyinstr(path, ptr, sz, &len); + + if (error) { + free(buf, M_TEMP); + return error; + } + + if (*ptr != '/') { + free(buf, M_TEMP); + return EINVAL; + } + + /* + * We know that there is a / somewhere in this pathname. + * Search backwards for it, to find the file's parent dir + * to see if it exists in the alternate tree. If it does, + * and we want to create a file (cflag is set). We don't + * need to worry about the root comparison in this case. + */ + + if (cflag) { + for (cp = &ptr[len] - 1; *cp != '/'; cp--) + ; + *cp = '\0'; + + NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, td); + + if ((error = namei(&nd)) != 0) { + free(buf, M_TEMP); + return error; + } + + *cp = '/'; + } else { + NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, buf, td); + + if ((error = namei(&nd)) != 0) { + free(buf, M_TEMP); + return error; + } + + /* + * We now compare the vnode of the ia32_root to the one + * vnode asked. If they resolve to be the same, then we + * ignore the match so that the real root gets used. + * This avoids the problem of traversing "../.." to find the + * root directory and never finding it, because "/" resolves + * to the emulation root directory. This is expensive :-( + */ + NDINIT(&ndroot, LOOKUP, FOLLOW, UIO_SYSSPACE, ia32_emul_path, + td); + + if ((error = namei(&ndroot)) != 0) { + /* Cannot happen! */ + free(buf, M_TEMP); + vrele(nd.ni_vp); + return error; + } + + ucred = td->td_ucred; + if ((error = VOP_GETATTR(nd.ni_vp, &vat, ucred, td)) != 0) { + goto bad; + } + + if ((error = VOP_GETATTR(ndroot.ni_vp, &vatroot, ucred, + td)) != 0) { + goto bad; + } + + if (vat.va_fsid == vatroot.va_fsid && + vat.va_fileid == vatroot.va_fileid) { + error = ENOENT; + goto bad; + } + + } + if (sgp == NULL) + *pbuf = buf; + else { + sz = &ptr[len] - buf; + *pbuf = stackgap_alloc(sgp, sz + 1); + error = copyout(buf, *pbuf, sz); + free(buf, M_TEMP); + } + + vrele(nd.ni_vp); + if (!cflag) + vrele(ndroot.ni_vp); + + return error; + +bad: + vrele(ndroot.ni_vp); + vrele(nd.ni_vp); + free(buf, M_TEMP); + return error; +} + +int +ia32_open(struct thread *td, struct ia32_open_args *uap) +{ + caddr_t sg; + + sg = stackgap_init(); + CHECKALTEXIST(td, &sg, uap->path); + + return open(td, (struct open_args *) uap); +} + +int +ia32_wait4(struct thread *td, struct ia32_wait4_args *uap) +{ + int error; + caddr_t sg; + struct rusage32 *rusage32, ru32; + struct rusage *rusage = NULL, ru; + + rusage32 = SCARG(uap, rusage); + if (rusage32) { + sg = stackgap_init(); + rusage = stackgap_alloc(&sg, sizeof(struct rusage)); + SCARG(uap, rusage) = (struct rusage32 *)rusage; + } + error = wait4(td, (struct wait_args *)uap); + if (error) + return (error); + if (rusage32 && (error = copyin(rusage, &ru, sizeof(ru)) == 0)) { + TV_CP(ru, ru32, ru_utime); + TV_CP(ru, ru32, ru_stime); + CP(ru, ru32, ru_maxrss); + CP(ru, ru32, ru_ixrss); + CP(ru, ru32, ru_idrss); + CP(ru, ru32, ru_isrss); + CP(ru, ru32, ru_minflt); + CP(ru, ru32, ru_majflt); + CP(ru, ru32, ru_nswap); + CP(ru, ru32, ru_inblock); + CP(ru, ru32, ru_oublock); + CP(ru, ru32, ru_msgsnd); + CP(ru, ru32, ru_msgrcv); + CP(ru, ru32, ru_nsignals); + CP(ru, ru32, ru_nvcsw); + CP(ru, ru32, ru_nivcsw); + error = copyout(&ru32, rusage32, sizeof(ru32)); + } + return (error); +} + +static void +copy_statfs(struct statfs *in, struct statfs32 *out) +{ + CP(*in, *out, f_bsize); + CP(*in, *out, f_iosize); + CP(*in, *out, f_blocks); + CP(*in, *out, f_bfree); + CP(*in, *out, f_bavail); + CP(*in, *out, f_files); + CP(*in, *out, f_ffree); + CP(*in, *out, f_fsid); + CP(*in, *out, f_owner); + CP(*in, *out, f_type); + CP(*in, *out, f_flags); + CP(*in, *out, f_flags); + CP(*in, *out, f_syncwrites); + CP(*in, *out, f_asyncwrites); + bcopy(in->f_fstypename, + out->f_fstypename, MFSNAMELEN); + bcopy(in->f_mntonname, + out->f_mntonname, MNAMELEN); + CP(*in, *out, f_syncreads); + CP(*in, *out, f_asyncreads); + bcopy(in->f_mntfromname, + out->f_mntfromname, MNAMELEN); +} + +int +ia32_getfsstat(struct thread *td, struct ia32_getfsstat_args *uap) +{ + int error; + caddr_t sg; + struct statfs32 *sp32, stat32; + struct statfs *sp = NULL, stat; + int maxcount, count, i; + + sp32 = SCARG(uap, buf); + maxcount = SCARG(uap, bufsize) / sizeof(struct statfs32); + + if (sp32) { + sg = stackgap_init(); + sp = stackgap_alloc(&sg, sizeof(struct statfs) * maxcount); + SCARG(uap, buf) = (struct statfs32 *)sp; + } + error = getfsstat(td, (struct getfsstat_args *) uap); + if (sp32 && !error) { + count = td->td_retval[0]; + for (i = 0; i < count; i++) { + error = copyin(&sp[i], &stat, sizeof(stat)); + if (error) + return (error); + copy_statfs(&stat, &stat32); + error = copyout(&stat32, &sp32[i], sizeof(stat32)); + if (error) + return (error); + } + } + return (error); +} + +int +ia32_access(struct thread *td, struct ia32_access_args *uap) +{ + caddr_t sg; + + sg = stackgap_init(); + CHECKALTEXIST(td, &sg, uap->path); + + return access(td, (struct access_args *)uap); +} + +int +ia32_chflags(struct thread *td, struct ia32_chflags_args *uap) +{ + caddr_t sg; + + sg = stackgap_init(); + CHECKALTEXIST(td, &sg, uap->path); + + return chflags(td, (struct chflags_args *)uap); +} + +struct sigaltstack32 { + u_int32_t ss_sp; + u_int32_t ss_size; + int ss_flags; +}; + +int +ia32_sigaltstack(struct thread *td, struct ia32_sigaltstack_args *uap) +{ + int error; + caddr_t sg; + struct sigaltstack32 *p32, *op32, s32; + struct sigaltstack *p = NULL, *op = NULL, s; + + p32 = SCARG(uap, ss); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct sigaltstack)); + SCARG(uap, ss) = (struct sigaltstack32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + PTRIN_CP(s32, s, ss_sp); + CP(s32, s, ss_size); + CP(s32, s, ss_flags); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + op32 = SCARG(uap, oss); + if (op32) { + sg = stackgap_init(); + op = stackgap_alloc(&sg, sizeof(struct sigaltstack)); + SCARG(uap, oss) = (struct sigaltstack32 *)op; + } + error = sigaltstack(td, (struct sigaltstack_args *) uap); + if (error) + return (error); + if (op32) { + error = copyin(op, &s, sizeof(s)); + if (error) + return (error); + PTROUT_CP(s, s32, ss_sp); + CP(s, s32, ss_size); + CP(s, s32, ss_flags); + error = copyout(&s32, op32, sizeof(s32)); + } + return (error); +} + +int +ia32_execve(struct thread *td, struct ia32_execve_args *uap) +{ + int error; + caddr_t sg; + struct execve_args ap; + u_int32_t *p32, arg; + char **p; + int count; + + sg = stackgap_init(); + CHECKALTEXIST(td, &sg, SCARG(uap, fname)); + SCARG(&ap, fname) = SCARG(uap, fname); + + if (SCARG(uap, argv)) { + count = 0; + p32 = SCARG(uap, argv); + do { + error = copyin(p32++, &arg, sizeof(arg)); + if (error) + return error; + count++; + } while (arg != 0); + p = stackgap_alloc(&sg, count * sizeof(char *)); + SCARG(&ap, argv) = p; + p32 = SCARG(uap, argv); + do { + error = copyin(p32++, &arg, sizeof(arg)); + if (error) + return error; + *p++ = PTRIN(arg); + } while (arg != 0); + } + if (SCARG(uap, envv)) { + count = 0; + p32 = SCARG(uap, envv); + do { + error = copyin(p32++, &arg, sizeof(arg)); + if (error) + return error; + count++; + } while (arg != 0); + p = stackgap_alloc(&sg, count * sizeof(char *)); + SCARG(&ap, envv) = p; + p32 = SCARG(uap, envv); + do { + error = copyin(p32++, &arg, sizeof(arg)); + if (error) + return error; + *p++ = PTRIN(arg); + } while (arg != 0); + } + + return execve(td, &ap); +} + +static int +ia32_mmap_partial(struct thread *td, vm_offset_t start, vm_offset_t end, + int prot, int fd, off_t pos) +{ + vm_map_t map; + vm_map_entry_t entry; + int rv; + + map = &td->td_proc->p_vmspace->vm_map; + if (fd != -1) + prot |= VM_PROT_WRITE; + + if (vm_map_lookup_entry(map, start, &entry)) { + if ((entry->protection & prot) != prot) { + rv = vm_map_protect(map, + trunc_page(start), + round_page(end), + entry->protection | prot, + FALSE); + if (rv != KERN_SUCCESS) + return (EINVAL); + } + } else { + vm_offset_t addr = trunc_page(start); + rv = vm_map_find(map, 0, 0, + &addr, PAGE_SIZE, FALSE, prot, + VM_PROT_ALL, 0); + if (rv != KERN_SUCCESS) + return (EINVAL); + } + + if (fd != -1) { + struct pread_args r; + SCARG(&r, fd) = fd; + SCARG(&r, buf) = (void *) start; + SCARG(&r, nbyte) = end - start; + SCARG(&r, offset) = pos; + return (pread(td, &r)); + } else { + while (start < end) { + subyte((void *) start, 0); + start++; + } + return (0); + } +} + +int +ia32_mmap(struct thread *td, struct ia32_mmap_args *uap) +{ + struct mmap_args ap; + vm_offset_t addr = (vm_offset_t) SCARG(uap, addr); + vm_size_t len = SCARG(uap, len); + int prot = SCARG(uap, prot); + int flags = SCARG(uap, flags); + int fd = SCARG(uap, fd); + off_t pos = (SCARG(uap, poslo) + | ((off_t)SCARG(uap, poshi) << 32)); + vm_size_t pageoff; + int error; + + /* + * Attempt to handle page size hassles. + */ + pageoff = (pos & PAGE_MASK); + if (flags & MAP_FIXED) { + vm_offset_t start, end; + start = addr; + end = addr + len; + + if (start != trunc_page(start)) { + error = ia32_mmap_partial(td, start, round_page(start), + prot, fd, pos); + if (fd != -1) + pos += round_page(start) - start; + start = round_page(start); + } + if (end != round_page(end)) { + vm_offset_t t = trunc_page(end); + error = ia32_mmap_partial(td, t, end, + prot, fd, + pos + t - start); + end = trunc_page(end); + } + if (end > start && fd != -1 && (pos & PAGE_MASK)) { + /* + * We can't map this region at all. The specified + * address doesn't have the same alignment as the file + * position. Fake the mapping by simply reading the + * entire region into memory. First we need to make + * sure the region exists. + */ + vm_map_t map; + struct pread_args r; + int rv; + + prot |= VM_PROT_WRITE; + map = &td->td_proc->p_vmspace->vm_map; + rv = vm_map_remove(map, start, end); + if (rv != KERN_SUCCESS) + return (EINVAL); + rv = vm_map_find(map, 0, 0, + &start, end - start, FALSE, + prot, VM_PROT_ALL, 0); + if (rv != KERN_SUCCESS) + return (EINVAL); + SCARG(&r, fd) = fd; + SCARG(&r, buf) = (void *) start; + SCARG(&r, nbyte) = end - start; + SCARG(&r, offset) = pos; + error = pread(td, &r); + if (error) + return (error); + + td->td_retval[0] = addr; + return (0); + } + if (end == start) { + /* + * After dealing with the ragged ends, there + * might be none left. + */ + td->td_retval[0] = addr; + return (0); + } + addr = start; + len = end - start; + } + + SCARG(&ap, addr) = (void *) addr; + SCARG(&ap, len) = len; + SCARG(&ap, prot) = prot; + SCARG(&ap, flags) = flags; + SCARG(&ap, fd) = fd; + SCARG(&ap, pos) = pos; + + return (mmap(td, &ap)); +} + +struct itimerval32 { + struct timeval32 it_interval; + struct timeval32 it_value; +}; + +int +ia32_setitimer(struct thread *td, struct ia32_setitimer_args *uap) +{ + int error; + caddr_t sg; + struct itimerval32 *p32, *op32, s32; + struct itimerval *p = NULL, *op = NULL, s; + + p32 = SCARG(uap, itv); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct itimerval)); + SCARG(uap, itv) = (struct itimerval32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + TV_CP(s32, s, it_interval); + TV_CP(s32, s, it_value); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + op32 = SCARG(uap, oitv); + if (op32) { + sg = stackgap_init(); + op = stackgap_alloc(&sg, sizeof(struct itimerval)); + SCARG(uap, oitv) = (struct itimerval32 *)op; + } + error = setitimer(td, (struct setitimer_args *) uap); + if (error) + return (error); + if (op32) { + error = copyin(op, &s, sizeof(s)); + if (error) + return (error); + TV_CP(s, s32, it_interval); + TV_CP(s, s32, it_value); + error = copyout(&s32, op32, sizeof(s32)); + } + return (error); +} + +int +ia32_select(struct thread *td, struct ia32_select_args *uap) +{ + int error; + caddr_t sg; + struct timeval32 *p32, s32; + struct timeval *p = NULL, s; + + p32 = SCARG(uap, tv); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct timeval)); + SCARG(uap, tv) = (struct timeval32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + CP(s32, s, tv_sec); + CP(s32, s, tv_usec); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + /* + * XXX big-endian needs to convert the fd_sets too. + */ + return (select(td, (struct select_args *) uap)); +} + +int +ia32_gettimeofday(struct thread *td, struct ia32_gettimeofday_args *uap) +{ + int error; + caddr_t sg; + struct timeval32 *p32, s32; + struct timeval *p = NULL, s; + + p32 = SCARG(uap, tp); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct timeval)); + SCARG(uap, tp) = (struct timeval32 *)p; + } + error = gettimeofday(td, (struct gettimeofday_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + CP(s, s32, tv_sec); + CP(s, s32, tv_usec); + error = copyout(&s32, p32, sizeof(s32)); + if (error) + return (error); + } + return (error); +} + +int +ia32_getrusage(struct thread *td, struct ia32_getrusage_args *uap) +{ + int error; + caddr_t sg; + struct rusage32 *p32, s32; + struct rusage *p = NULL, s; + + p32 = SCARG(uap, rusage); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct rusage)); + SCARG(uap, rusage) = (struct rusage32 *)p; + } + error = getrusage(td, (struct getrusage_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + TV_CP(s, s32, ru_utime); + TV_CP(s, s32, ru_stime); + CP(s, s32, ru_maxrss); + CP(s, s32, ru_ixrss); + CP(s, s32, ru_idrss); + CP(s, s32, ru_isrss); + CP(s, s32, ru_minflt); + CP(s, s32, ru_majflt); + CP(s, s32, ru_nswap); + CP(s, s32, ru_inblock); + CP(s, s32, ru_oublock); + CP(s, s32, ru_msgsnd); + CP(s, s32, ru_msgrcv); + CP(s, s32, ru_nsignals); + CP(s, s32, ru_nvcsw); + CP(s, s32, ru_nivcsw); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +struct iovec32 { + u_int32_t iov_base; + int iov_len; +}; +#define STACKGAPLEN 400 + +int +ia32_readv(struct thread *td, struct ia32_readv_args *uap) +{ + int error, osize, nsize, i; + caddr_t sg; + struct readv_args /* { + syscallarg(int) fd; + syscallarg(struct iovec *) iovp; + syscallarg(u_int) iovcnt; + } */ a; + struct iovec32 *oio; + struct iovec *nio; + + sg = stackgap_init(); + + if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec))) + return (EINVAL); + + osize = SCARG(uap, iovcnt) * sizeof (struct iovec32); + nsize = SCARG(uap, iovcnt) * sizeof (struct iovec); + + oio = malloc(osize, M_TEMP, M_WAITOK); + nio = malloc(nsize, M_TEMP, M_WAITOK); + + error = 0; + if ((error = copyin(SCARG(uap, iovp), oio, osize))) + goto punt; + for (i = 0; i < SCARG(uap, iovcnt); i++) { + nio[i].iov_base = PTRIN(oio[i].iov_base); + nio[i].iov_len = oio[i].iov_len; + } + + SCARG(&a, fd) = SCARG(uap, fd); + SCARG(&a, iovp) = stackgap_alloc(&sg, nsize); + SCARG(&a, iovcnt) = SCARG(uap, iovcnt); + + if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize))) + goto punt; + error = readv(td, &a); + +punt: + free(oio, M_TEMP); + free(nio, M_TEMP); + return (error); +} + +int +ia32_writev(struct thread *td, struct ia32_writev_args *uap) +{ + int error, i, nsize, osize; + caddr_t sg; + struct writev_args /* { + syscallarg(int) fd; + syscallarg(struct iovec *) iovp; + syscallarg(u_int) iovcnt; + } */ a; + struct iovec32 *oio; + struct iovec *nio; + + sg = stackgap_init(); + + if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec))) + return (EINVAL); + + osize = SCARG(uap, iovcnt) * sizeof (struct iovec32); + nsize = SCARG(uap, iovcnt) * sizeof (struct iovec); + + oio = malloc(osize, M_TEMP, M_WAITOK); + nio = malloc(nsize, M_TEMP, M_WAITOK); + + error = 0; + if ((error = copyin(SCARG(uap, iovp), oio, osize))) + goto punt; + for (i = 0; i < SCARG(uap, iovcnt); i++) { + nio[i].iov_base = PTRIN(oio[i].iov_base); + nio[i].iov_len = oio[i].iov_len; + } + + SCARG(&a, fd) = SCARG(uap, fd); + SCARG(&a, iovp) = stackgap_alloc(&sg, nsize); + SCARG(&a, iovcnt) = SCARG(uap, iovcnt); + + if ((error = copyout(nio, (caddr_t)SCARG(&a, iovp), nsize))) + goto punt; + error = writev(td, &a); + +punt: + free(oio, M_TEMP); + free(nio, M_TEMP); + return (error); +} + +int +ia32_settimeofday(struct thread *td, struct ia32_settimeofday_args *uap) +{ + int error; + caddr_t sg; + struct timeval32 *p32, s32; + struct timeval *p = NULL, s; + + p32 = SCARG(uap, tv); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct timeval)); + SCARG(uap, tv) = (struct timeval32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + CP(s32, s, tv_sec); + CP(s32, s, tv_usec); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + return (settimeofday(td, (struct settimeofday_args *) uap)); +} + +int +ia32_utimes(struct thread *td, struct ia32_utimes_args *uap) +{ + int error; + caddr_t sg; + struct timeval32 *p32, s32[2]; + struct timeval *p = NULL, s[2]; + + p32 = SCARG(uap, tptr); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, 2*sizeof(struct timeval)); + SCARG(uap, tptr) = (struct timeval32 *)p; + error = copyin(p32, s32, sizeof(s32)); + if (error) + return (error); + CP(s32[0], s[0], tv_sec); + CP(s32[0], s[0], tv_usec); + CP(s32[1], s[1], tv_sec); + CP(s32[1], s[1], tv_usec); + error = copyout(s, p, sizeof(s)); + if (error) + return (error); + } + return (utimes(td, (struct utimes_args *) uap)); +} + +int +ia32_adjtime(struct thread *td, struct ia32_adjtime_args *uap) +{ + int error; + caddr_t sg; + struct timeval32 *p32, *op32, s32; + struct timeval *p = NULL, *op = NULL, s; + + p32 = SCARG(uap, delta); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct timeval)); + SCARG(uap, delta) = (struct timeval32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + CP(s32, s, tv_sec); + CP(s32, s, tv_usec); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + op32 = SCARG(uap, olddelta); + if (op32) { + sg = stackgap_init(); + op = stackgap_alloc(&sg, sizeof(struct timeval)); + SCARG(uap, olddelta) = (struct timeval32 *)op; + } + error = utimes(td, (struct utimes_args *) uap); + if (error) + return error; + if (op32) { + error = copyin(op, &s, sizeof(s)); + if (error) + return (error); + CP(s, s32, tv_sec); + CP(s, s32, tv_usec); + error = copyout(&s32, op32, sizeof(s32)); + } + return (error); +} + +int +ia32_statfs(struct thread *td, struct ia32_statfs_args *uap) +{ + int error; + caddr_t sg; + struct statfs32 *p32, s32; + struct statfs *p = NULL, s; + + p32 = SCARG(uap, buf); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct statfs)); + SCARG(uap, buf) = (struct statfs32 *)p; + } + error = statfs(td, (struct statfs_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + copy_statfs(&s, &s32); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +int +ia32_fstatfs(struct thread *td, struct ia32_fstatfs_args *uap) +{ + int error; + caddr_t sg; + struct statfs32 *p32, s32; + struct statfs *p = NULL, s; + + p32 = SCARG(uap, buf); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct statfs)); + SCARG(uap, buf) = (struct statfs32 *)p; + } + error = fstatfs(td, (struct fstatfs_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + copy_statfs(&s, &s32); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +int +ia32_semsys(struct thread *td, struct ia32_semsys_args *uap) +{ + /* + * Vector through to semsys if it is loaded. + */ + return sysent[169].sy_call(td, uap); +} + +int +ia32_msgsys(struct thread *td, struct ia32_msgsys_args *uap) +{ + /* + * Vector through to msgsys if it is loaded. + */ + return sysent[170].sy_call(td, uap); +} + +int +ia32_shmsys(struct thread *td, struct ia32_shmsys_args *uap) +{ + /* + * Vector through to shmsys if it is loaded. + */ + return sysent[171].sy_call(td, uap); +} + +int +ia32_pread(struct thread *td, struct ia32_pread_args *uap) +{ + struct pread_args ap; + + SCARG(&ap, fd) = SCARG(uap, fd); + SCARG(&ap, buf) = SCARG(uap, buf); + SCARG(&ap, nbyte) = SCARG(uap, nbyte); + SCARG(&ap, offset) = (SCARG(uap, offsetlo) + | ((off_t)SCARG(uap, offsethi) << 32)); + return (pread(td, &ap)); +} + +int +ia32_pwrite(struct thread *td, struct ia32_pwrite_args *uap) +{ + struct pwrite_args ap; + + SCARG(&ap, fd) = SCARG(uap, fd); + SCARG(&ap, buf) = SCARG(uap, buf); + SCARG(&ap, nbyte) = SCARG(uap, nbyte); + SCARG(&ap, offset) = (SCARG(uap, offsetlo) + | ((off_t)SCARG(uap, offsethi) << 32)); + return (pwrite(td, &ap)); +} + +int +ia32_lseek(struct thread *td, struct ia32_lseek_args *uap) +{ + int error; + struct lseek_args ap; + off_t pos; + + SCARG(&ap, fd) = SCARG(uap, fd); + SCARG(&ap, offset) = (SCARG(uap, offsetlo) + | ((off_t)SCARG(uap, offsethi) << 32)); + SCARG(&ap, whence) = SCARG(uap, whence); + error = lseek(td, &ap); + /* Expand the quad return into two parts for eax and edx */ + pos = *(off_t *)(td->td_retval); + td->td_retval[0] = pos & 0xffffffff; /* %eax */ + td->td_retval[1] = pos >> 32; /* %edx */ + return error; +} + +int +ia32_truncate(struct thread *td, struct ia32_truncate_args *uap) +{ + struct truncate_args ap; + + SCARG(&ap, path) = SCARG(uap, path); + SCARG(&ap, length) = (SCARG(uap, lengthlo) + | ((off_t)SCARG(uap, lengthhi) << 32)); + return (truncate(td, &ap)); +} + +int +ia32_ftruncate(struct thread *td, struct ia32_ftruncate_args *uap) +{ + struct ftruncate_args ap; + + SCARG(&ap, fd) = SCARG(uap, fd); + SCARG(&ap, length) = (SCARG(uap, lengthlo) + | ((off_t)SCARG(uap, lengthhi) << 32)); + return (ftruncate(td, &ap)); +} + +int +ia32_sendfile(struct thread *td, struct ia32_sendfile_args *uap) +{ + struct sendfile_args ap; + + SCARG(&ap, fd) = SCARG(uap, fd); + SCARG(&ap, s) = SCARG(uap, s); + SCARG(&ap, offset) = (SCARG(uap, offsetlo) + | ((off_t)SCARG(uap, offsethi) << 32)); + SCARG(&ap, nbytes) = SCARG(uap, nbytes); /* XXX check */ + SCARG(&ap, hdtr) = SCARG(uap, hdtr); /* XXX check */ + SCARG(&ap, sbytes) = SCARG(uap, sbytes); /* XXX FIXME!! */ + SCARG(&ap, flags) = SCARG(uap, flags); + return (sendfile(td, &ap)); +} + +struct stat32 { + udev_t st_dev; + ino_t st_ino; + mode_t st_mode; + nlink_t st_nlink; + uid_t st_uid; + gid_t st_gid; + udev_t st_rdev; + struct timespec32 st_atimespec; + struct timespec32 st_mtimespec; + struct timespec32 st_ctimespec; + off_t st_size; + int64_t st_blocks; + u_int32_t st_blksize; + u_int32_t st_flags; + u_int32_t st_gen; +}; + +static void +copy_stat( struct stat *in, struct stat32 *out) +{ + CP(*in, *out, st_dev); + CP(*in, *out, st_ino); + CP(*in, *out, st_mode); + CP(*in, *out, st_nlink); + CP(*in, *out, st_uid); + CP(*in, *out, st_gid); + CP(*in, *out, st_rdev); + TS_CP(*in, *out, st_atimespec); + TS_CP(*in, *out, st_mtimespec); + TS_CP(*in, *out, st_ctimespec); + CP(*in, *out, st_size); + CP(*in, *out, st_blocks); + CP(*in, *out, st_blksize); + CP(*in, *out, st_flags); + CP(*in, *out, st_gen); +} + +int +ia32_stat(struct thread *td, struct ia32_stat_args *uap) +{ + int error; + caddr_t sg; + struct stat32 *p32, s32; + struct stat *p = NULL, s; + + p32 = SCARG(uap, ub); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct stat)); + SCARG(uap, ub) = (struct stat32 *)p; + } + error = stat(td, (struct stat_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + copy_stat(&s, &s32); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +int +ia32_fstat(struct thread *td, struct ia32_fstat_args *uap) +{ + int error; + caddr_t sg; + struct stat32 *p32, s32; + struct stat *p = NULL, s; + + p32 = SCARG(uap, ub); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct stat)); + SCARG(uap, ub) = (struct stat32 *)p; + } + error = fstat(td, (struct fstat_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + copy_stat(&s, &s32); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +int +ia32_lstat(struct thread *td, struct ia32_lstat_args *uap) +{ + int error; + caddr_t sg; + struct stat32 *p32, s32; + struct stat *p = NULL, s; + + p32 = SCARG(uap, ub); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct stat)); + SCARG(uap, ub) = (struct stat32 *)p; + } + error = lstat(td, (struct lstat_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + copy_stat(&s, &s32); + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +/* + * MPSAFE + */ +int +ia32_sysctl(struct thread *td, struct ia32_sysctl_args *uap) +{ + int error, name[CTL_MAXNAME]; + size_t j, oldlen; + + if (uap->namelen > CTL_MAXNAME || uap->namelen < 2) + return (EINVAL); + + error = copyin(uap->name, &name, uap->namelen * sizeof(int)); + if (error) + return (error); + + mtx_lock(&Giant); + + if (uap->oldlenp) + oldlen = fuword32(uap->oldlenp); + else + oldlen = 0; + error = userland_sysctl(td, name, uap->namelen, + uap->old, &oldlen, 1, + uap->new, uap->newlen, &j); + if (error && error != ENOMEM) + goto done2; + if (uap->oldlenp) { + suword32(uap->oldlenp, j); + } +done2: + mtx_unlock(&Giant); + return (error); +} + +struct sigaction32 { + u_int32_t sa_u; + int sa_flags; + sigset_t sa_mask; +}; + +int +ia32_sigaction(struct thread *td, struct ia32_sigaction_args *uap) +{ + int error; + caddr_t sg; + struct sigaction32 *p32, *op32, s32; + struct sigaction *p = NULL, *op = NULL, s; + + p32 = SCARG(uap, act); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct sigaction)); + SCARG(uap, act) = (struct sigaction32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + s.sa_handler = PTRIN(s32.sa_u); + CP(s32, s, sa_flags); + CP(s32, s, sa_mask); + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + op32 = SCARG(uap, oact); + if (op32) { + sg = stackgap_init(); + op = stackgap_alloc(&sg, sizeof(struct sigaction)); + SCARG(uap, oact) = (struct sigaction32 *)op; + } + error = sigaction(td, (struct sigaction_args *) uap); + if (error) + return (error); + if (op32) { + error = copyin(op, &s, sizeof(s)); + if (error) + return (error); + s32.sa_u = PTROUT(s.sa_handler); + CP(s, s32, sa_flags); + CP(s, s32, sa_mask); + error = copyout(&s32, op32, sizeof(s32)); + } + return (error); +} + +#if 0 + +int +ia32_xxx(struct thread *td, struct ia32_xxx_args *uap) +{ + int error; + caddr_t sg; + struct yyy32 *p32, s32; + struct yyy *p = NULL, s; + + p32 = SCARG(uap, zzz); + if (p32) { + sg = stackgap_init(); + p = stackgap_alloc(&sg, sizeof(struct yyy)); + SCARG(uap, zzz) = (struct yyy32 *)p; + error = copyin(p32, &s32, sizeof(s32)); + if (error) + return (error); + /* translate in */ + error = copyout(&s, p, sizeof(s)); + if (error) + return (error); + } + error = xxx(td, (struct xxx_args *) uap); + if (error) + return (error); + if (p32) { + error = copyin(p, &s, sizeof(s)); + if (error) + return (error); + /* translate out */ + error = copyout(&s32, p32, sizeof(s32)); + } + return (error); +} + +#endif |
