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Use the new kern_* functions to avoid the need to store arguments

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in the stack gap. This converts most VFS and signal related system
calls, as well as select().

Discussed on:	-arch
Approved by:	marcel
This commit is contained in:
iedowse 2002-09-01 22:30:27 +00:00
parent b1c6d21217
commit 07f07ebc49
8 changed files with 292 additions and 382 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

309
sys/compat/linux/linux_file.c
View File

@ -44,6 +44,7 @@
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/tty.h>
#include <sys/vnode.h>
@ -60,82 +61,68 @@
int
linux_creat(struct thread *td, struct linux_creat_args *args)
{
struct open_args /* {
char *path;
int flags;
int mode;
} */ bsd_open_args;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTCREAT(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(creat))
printf(ARGS(creat, "%s, %d"), args->path, args->mode);
printf(ARGS(creat, "%s, %d"), path, args->mode);
#endif
bsd_open_args.path = args->path;
bsd_open_args.mode = args->mode;
bsd_open_args.flags = O_WRONLY | O_CREAT | O_TRUNC;
return open(td, &bsd_open_args);
error = kern_open(td, path, UIO_SYSSPACE, O_WRONLY | O_CREAT | O_TRUNC,
args->mode);
LFREEPATH(path);
return (error);
}
#endif /*!__alpha__*/
int
linux_open(struct thread *td, struct linux_open_args *args)
{
struct open_args /* {
char *path;
int flags;
int mode;
} */ bsd_open_args;
struct proc *p = td->td_proc;
int error;
caddr_t sg;
char *path;
int bsd_flags, error;
sg = stackgap_init();
if (args->flags & LINUX_O_CREAT)
CHECKALTCREAT(td, &sg, args->path);
LCONVPATHCREAT(td, args->path, &path);
else
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(open))
printf(ARGS(open, "%s, 0x%x, 0x%x"),
args->path, args->flags, args->mode);
path, args->flags, args->mode);
#endif
bsd_open_args.flags = 0;
bsd_flags = 0;
if (args->flags & LINUX_O_RDONLY)
bsd_open_args.flags |= O_RDONLY;
bsd_flags |= O_RDONLY;
if (args->flags & LINUX_O_WRONLY)
bsd_open_args.flags |= O_WRONLY;
bsd_flags |= O_WRONLY;
if (args->flags & LINUX_O_RDWR)
bsd_open_args.flags |= O_RDWR;
bsd_flags |= O_RDWR;
if (args->flags & LINUX_O_NDELAY)
bsd_open_args.flags |= O_NONBLOCK;
bsd_flags |= O_NONBLOCK;
if (args->flags & LINUX_O_APPEND)
bsd_open_args.flags |= O_APPEND;
bsd_flags |= O_APPEND;
if (args->flags & LINUX_O_SYNC)
bsd_open_args.flags |= O_FSYNC;
bsd_flags |= O_FSYNC;
if (args->flags & LINUX_O_NONBLOCK)
bsd_open_args.flags |= O_NONBLOCK;
bsd_flags |= O_NONBLOCK;
if (args->flags & LINUX_FASYNC)
bsd_open_args.flags |= O_ASYNC;
bsd_flags |= O_ASYNC;
if (args->flags & LINUX_O_CREAT)
bsd_open_args.flags |= O_CREAT;
bsd_flags |= O_CREAT;
if (args->flags & LINUX_O_TRUNC)
bsd_open_args.flags |= O_TRUNC;
bsd_flags |= O_TRUNC;
if (args->flags & LINUX_O_EXCL)
bsd_open_args.flags |= O_EXCL;
bsd_flags |= O_EXCL;
if (args->flags & LINUX_O_NOCTTY)
bsd_open_args.flags |= O_NOCTTY;
bsd_open_args.path = args->path;
bsd_open_args.mode = args->mode;
bsd_flags |= O_NOCTTY;
error = open(td, &bsd_open_args);
error = kern_open(td, path, UIO_SYSSPACE, bsd_flags, args->mode);
PROC_LOCK(p);
if (!error && !(bsd_open_args.flags & O_NOCTTY) &&
if (!error && !(bsd_flags & O_NOCTTY) &&
SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) {
struct file *fp;
@ -154,6 +141,7 @@ linux_open(struct thread *td, struct linux_open_args *args)
printf(LMSG("open returns error %d"), error);
#endif
}
LFREEPATH(path);
return error;
}
@ -493,214 +481,213 @@ linux_getdents64(struct thread *td, struct linux_getdents64_args *args)
int
linux_access(struct thread *td, struct linux_access_args *args)
{
struct access_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(access))
printf(ARGS(access, "%s, %d"), args->path, args->flags);
printf(ARGS(access, "%s, %d"), path, args->flags);
#endif
bsd.path = args->path;
bsd.flags = args->flags;
return access(td, &bsd);
error = kern_access(td, path, UIO_SYSSPACE, args->flags);
LFREEPATH(path);
return (error);
}
int
linux_unlink(struct thread *td, struct linux_unlink_args *args)
{
struct unlink_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(unlink))
printf(ARGS(unlink, "%s"), args->path);
printf(ARGS(unlink, "%s"), path);
#endif
bsd.path = args->path;
return unlink(td, &bsd);
error = kern_unlink(td, path, UIO_SYSSPACE);
LFREEPATH(path);
return (error);
}
int
linux_chdir(struct thread *td, struct linux_chdir_args *args)
{
struct chdir_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(chdir))
printf(ARGS(chdir, "%s"), args->path);
printf(ARGS(chdir, "%s"), path);
#endif
bsd.path = args->path;
return chdir(td, &bsd);
error = kern_chdir(td, path, UIO_SYSSPACE);
LFREEPATH(path);
return (error);
}
int
linux_chmod(struct thread *td, struct linux_chmod_args *args)
{
struct chmod_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(chmod))
printf(ARGS(chmod, "%s, %d"), args->path, args->mode);
printf(ARGS(chmod, "%s, %d"), path, args->mode);
#endif
bsd.path = args->path;
bsd.mode = args->mode;
return chmod(td, &bsd);
error = kern_chmod(td, path, UIO_SYSSPACE, args->mode);
LFREEPATH(path);
return (error);
}
int
linux_mkdir(struct thread *td, struct linux_mkdir_args *args)
{
struct mkdir_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTCREAT(td, &sg, args->path);
LCONVPATHCREAT(td, args->path, &path);
#ifdef DEBUG
if (ldebug(mkdir))
printf(ARGS(mkdir, "%s, %d"), args->path, args->mode);
printf(ARGS(mkdir, "%s, %d"), path, args->mode);
#endif
bsd.path = args->path;
bsd.mode = args->mode;
return mkdir(td, &bsd);
error = kern_mkdir(td, path, UIO_SYSSPACE, args->mode);
LFREEPATH(path);
return (error);
}
int
linux_rmdir(struct thread *td, struct linux_rmdir_args *args)
{
struct rmdir_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(rmdir))
printf(ARGS(rmdir, "%s"), args->path);
printf(ARGS(rmdir, "%s"), path);
#endif
bsd.path = args->path;
return rmdir(td, &bsd);
error = kern_rmdir(td, path, UIO_SYSSPACE);
LFREEPATH(path);
return (error);
}
int
linux_rename(struct thread *td, struct linux_rename_args *args)
{
struct rename_args bsd;
caddr_t sg;
char *from, *to;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->from);
CHECKALTCREAT(td, &sg, args->to);
LCONVPATHEXIST(td, args->from, &from);
/* Expand LCONVPATHCREATE so that `from' can be freed on errors */
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1);
if (to == NULL) {
LFREEPATH(from);
return (error);
}
#ifdef DEBUG
if (ldebug(rename))
printf(ARGS(rename, "%s, %s"), args->from, args->to);
printf(ARGS(rename, "%s, %s"), from, to);
#endif
bsd.from = args->from;
bsd.to = args->to;
return rename(td, &bsd);
error = kern_rename(td, from, to, UIO_SYSSPACE);
LFREEPATH(from);
LFREEPATH(to);
return (error);
}
int
linux_symlink(struct thread *td, struct linux_symlink_args *args)
{
struct symlink_args bsd;
caddr_t sg;
char *path, *to;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
CHECKALTCREAT(td, &sg, args->to);
LCONVPATHEXIST(td, args->path, &path);
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1);
if (to == NULL) {
LFREEPATH(path);
return (error);
}
#ifdef DEBUG
if (ldebug(symlink))
printf(ARGS(symlink, "%s, %s"), args->path, args->to);
printf(ARGS(symlink, "%s, %s"), path, to);
#endif
bsd.path = args->path;
bsd.link = args->to;
return symlink(td, &bsd);
error = kern_symlink(td, path, to, UIO_SYSSPACE);
LFREEPATH(path);
LFREEPATH(to);
return (error);
}
int
linux_readlink(struct thread *td, struct linux_readlink_args *args)
{
struct readlink_args bsd;
caddr_t sg;
char *name;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->name);
LCONVPATHEXIST(td, args->name, &name);
#ifdef DEBUG
if (ldebug(readlink))
printf(ARGS(readlink, "%s, %p, %d"),
args->name, (void *)args->buf, args->count);
printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf,
args->count);
#endif
bsd.path = args->name;
bsd.buf = args->buf;
bsd.count = args->count;
return readlink(td, &bsd);
error = kern_readlink(td, name, UIO_SYSSPACE, args->buf, UIO_USERSPACE,
args->count);
LFREEPATH(name);
return (error);
}
int
linux_truncate(struct thread *td, struct linux_truncate_args *args)
{
struct truncate_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(truncate))
printf(ARGS(truncate, "%s, %ld"), args->path,
(long)args->length);
printf(ARGS(truncate, "%s, %ld"), path, (long)args->length);
#endif
bsd.path = args->path;
bsd.length = args->length;
return truncate(td, &bsd);
error = kern_truncate(td, path, UIO_SYSSPACE, args->length);
LFREEPATH(path);
return (error);
}
int
linux_link(struct thread *td, struct linux_link_args *args)
{
struct link_args bsd;
caddr_t sg;
char *path, *to;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
CHECKALTCREAT(td, &sg, args->to);
LCONVPATHEXIST(td, args->path, &path);
/* Expand LCONVPATHCREATE so that `path' can be freed on errors */
error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1);
if (to == NULL) {
LFREEPATH(path);
return (error);
}
#ifdef DEBUG
if (ldebug(link))
printf(ARGS(link, "%s, %s"), args->path, args->to);
printf(ARGS(link, "%s, %s"), path, to);
#endif
bsd.path = args->path;
bsd.link = args->to;
return link(td, &bsd);
error = kern_link(td, path, to, UIO_SYSSPACE);
LFREEPATH(path);
LFREEPATH(to);
return (error);
}
#ifndef __alpha__
@ -1158,41 +1145,33 @@ linux_fcntl64(struct thread *td, struct linux_fcntl64_args *args)
int
linux_chown(struct thread *td, struct linux_chown_args *args)
{
struct chown_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(chown))
printf(ARGS(chown, "%s, %d, %d"), args->path, args->uid,
args->gid);
printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid);
#endif
bsd.path = args->path;
bsd.uid = args->uid;
bsd.gid = args->gid;
return (chown(td, &bsd));
error = kern_chown(td, path, UIO_SYSSPACE, args->uid, args->gid);
LFREEPATH(path);
return (error);
}
int
linux_lchown(struct thread *td, struct linux_lchown_args *args)
{
struct lchown_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(lchown))
printf(ARGS(lchown, "%s, %d, %d"), args->path, args->uid,
args->gid);
printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid);
#endif
bsd.path = args->path;
bsd.uid = args->uid;
bsd.gid = args->gid;
return (lchown(td, &bsd));
error = kern_lchown(td, path, UIO_SYSSPACE, args->uid, args->gid);
LFREEPATH(path);
return (error);
}

147
sys/compat/linux/linux_misc.c
View File

@ -50,6 +50,7 @@
#include <sys/resourcevar.h>
#include <sys/signalvar.h>
#include <sys/stat.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysproto.h>
#include <sys/time.h>
@ -235,16 +236,15 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
unsigned long file_offset;
vm_offset_t buffer;
unsigned long bss_size;
char *library;
int error;
caddr_t sg;
int locked;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->library);
LCONVPATHEXIST(td, args->library, &library);
#ifdef DEBUG
if (ldebug(uselib))
printf(ARGS(uselib, "%s"), args->library);
printf(ARGS(uselib, "%s"), library);
#endif
a_out = NULL;
@ -255,8 +255,9 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
* XXX: This code should make use of vn_open(), rather than doing
* all this stuff itself.
*/
NDINIT(&ni, LOOKUP, FOLLOW|LOCKLEAF, UIO_USERSPACE, args->library, td);
NDINIT(&ni, LOOKUP, FOLLOW|LOCKLEAF, UIO_SYSSPACE, library, td);
error = namei(&ni);
LFREEPATH(library);
if (error)
goto cleanup;
@ -476,9 +477,7 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
int
linux_select(struct thread *td, struct linux_select_args *args)
{
struct select_args bsa;
struct timeval tv0, tv1, utv, *tvp;
caddr_t sg;
int error;
#ifdef DEBUG
@ -488,13 +487,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
(void *)args->exceptfds, (void *)args->timeout);
#endif
error = 0;
bsa.nd = args->nfds;
bsa.in = args->readfds;
bsa.ou = args->writefds;
bsa.ex = args->exceptfds;
bsa.tv = (struct timeval *)args->timeout;
/*
* Store current time for computation of the amount of
* time left.
@ -514,8 +506,6 @@ linux_select(struct thread *td, struct linux_select_args *args)
* The timeval was invalid. Convert it to something
* valid that will act as it does under Linux.
*/
sg = stackgap_init();
tvp = stackgap_alloc(&sg, sizeof(utv));
utv.tv_sec += utv.tv_usec / 1000000;
utv.tv_usec %= 1000000;
if (utv.tv_usec < 0) {
@ -524,14 +514,15 @@ linux_select(struct thread *td, struct linux_select_args *args)
}
if (utv.tv_sec < 0)
timevalclear(&utv);
if ((error = copyout(&utv, tvp, sizeof(utv))))
goto select_out;
bsa.tv = tvp;
}
microtime(&tv0);
}
tvp = &utv;
} else
tvp = NULL;
error = kern_select(td, args->nfds, args->readfds, args->writefds,
args->exceptfds, tvp);
error = select(td, &bsa);
#ifdef DEBUG
if (ldebug(select))
printf(LMSG("real select returns %d"), error);
@ -729,42 +720,34 @@ struct l_utimbuf {
int
linux_utime(struct thread *td, struct linux_utime_args *args)
{
struct utimes_args /* {
char *path;
struct timeval *tptr;
} */ bsdutimes;
struct timeval tv[2], *tvp;
struct l_utimbuf lut;
char *fname;
int error;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->fname);
LCONVPATHEXIST(td, args->fname, &fname);
#ifdef DEBUG
if (ldebug(utime))
printf(ARGS(utime, "%s, *"), args->fname);
printf(ARGS(utime, "%s, *"), fname);
#endif
if (args->times) {
if ((error = copyin((caddr_t)args->times, &lut, sizeof lut)))
if ((error = copyin((caddr_t)args->times, &lut, sizeof lut))) {
LFREEPATH(fname);
return error;
}
tv[0].tv_sec = lut.l_actime;
tv[0].tv_usec = 0;
tv[1].tv_sec = lut.l_modtime;
tv[1].tv_usec = 0;
/* so that utimes can copyin */
tvp = (struct timeval *)stackgap_alloc(&sg, sizeof(tv));
if (tvp == NULL)
return (ENAMETOOLONG);
if ((error = copyout(tv, tvp, sizeof(tv))))
return error;
bsdutimes.tptr = tvp;
tvp = tv;
} else
bsdutimes.tptr = NULL;
tvp = NULL;
bsdutimes.path = args->fname;
return utimes(td, &bsdutimes);
error = kern_utimes(td, fname, UIO_SYSSPACE, tvp, UIO_SYSSPACE);
LFREEPATH(fname);
return (error);
}
#endif /* __i386__ */
@ -868,30 +851,23 @@ linux_wait4(struct thread *td, struct linux_wait4_args *args)
int
linux_mknod(struct thread *td, struct linux_mknod_args *args)
{
caddr_t sg;
struct mknod_args bsd_mknod;
struct mkfifo_args bsd_mkfifo;
char *path;
int error;
sg = stackgap_init();
CHECKALTCREAT(td, &sg, args->path);
LCONVPATHCREAT(td, args->path, &path);
#ifdef DEBUG
if (ldebug(mknod))
printf(ARGS(mknod, "%s, %d, %d"),
args->path, args->mode, args->dev);
printf(ARGS(mknod, "%s, %d, %d"), path, args->mode, args->dev);
#endif
if (args->mode & S_IFIFO) {
bsd_mkfifo.path = args->path;
bsd_mkfifo.mode = args->mode;
return mkfifo(td, &bsd_mkfifo);
} else {
bsd_mknod.path = args->path;
bsd_mknod.mode = args->mode;
bsd_mknod.dev = args->dev;
return mknod(td, &bsd_mknod);
}
if (args->mode & S_IFIFO)
error = kern_mkfifo(td, path, UIO_SYSSPACE, args->mode);
else
error = kern_mknod(td, path, UIO_SYSSPACE, args->mode,
args->dev);
LFREEPATH(path);
return (error);
}
/*
@ -1071,10 +1047,10 @@ linux_getgroups(struct thread *td, struct linux_getgroups_args *args)
int
linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
{
struct __setrlimit_args bsd;
struct rlimit bsd_rlim;
struct l_rlimit rlim;
u_int which;
int error;
caddr_t sg = stackgap_init();
#ifdef DEBUG
if (ldebug(setrlimit))
@ -1085,27 +1061,26 @@ linux_setrlimit(struct thread *td, struct linux_setrlimit_args *args)
if (args->resource >= LINUX_RLIM_NLIMITS)
return (EINVAL);
bsd.which = linux_to_bsd_resource[args->resource];
if (bsd.which == -1)
which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL);
error = copyin((caddr_t)args->rlim, &rlim, sizeof(rlim));
if (error)
return (error);
bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
bsd.rlp->rlim_cur = (rlim_t)rlim.rlim_cur;
bsd.rlp->rlim_max = (rlim_t)rlim.rlim_max;
return (setrlimit(td, &bsd));
bsd_rlim.rlim_cur = (rlim_t)rlim.rlim_cur;
bsd_rlim.rlim_max = (rlim_t)rlim.rlim_max;
return (dosetrlimit(td, which, &bsd_rlim));
}
int
linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
{
struct __getrlimit_args bsd;
struct l_rlimit rlim;
int error;
caddr_t sg = stackgap_init();
struct proc *p = td->td_proc;
struct rlimit *bsd_rlp;
u_int which;
#ifdef DEBUG
if (ldebug(old_getrlimit))
@ -1116,19 +1091,15 @@ linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
if (args->resource >= LINUX_RLIM_NLIMITS)
return (EINVAL);
bsd.which = linux_to_bsd_resource[args->resource];
if (bsd.which == -1)
which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL);
bsd_rlp = &p->p_rlimit[which];
bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
error = getrlimit(td, &bsd);
if (error)
return (error);
rlim.rlim_cur = (unsigned long)bsd.rlp->rlim_cur;
rlim.rlim_cur = (unsigned long)bsd_rlp->rlim_cur;
if (rlim.rlim_cur == ULONG_MAX)
rlim.rlim_cur = LONG_MAX;
rlim.rlim_max = (unsigned long)bsd.rlp->rlim_max;
rlim.rlim_max = (unsigned long)bsd_rlp->rlim_max;
if (rlim.rlim_max == ULONG_MAX)
rlim.rlim_max = LONG_MAX;
return (copyout(&rlim, (caddr_t)args->rlim, sizeof(rlim)));
@ -1137,10 +1108,10 @@ linux_old_getrlimit(struct thread *td, struct linux_old_getrlimit_args *args)
int
linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
{
struct __getrlimit_args bsd;
struct l_rlimit rlim;
int error;
caddr_t sg = stackgap_init();
struct proc *p = td->td_proc;
struct rlimit *bsd_rlp;
u_int which;
#ifdef DEBUG
if (ldebug(getrlimit))
@ -1151,17 +1122,13 @@ linux_getrlimit(struct thread *td, struct linux_getrlimit_args *args)
if (args->resource >= LINUX_RLIM_NLIMITS)
return (EINVAL);
bsd.which = linux_to_bsd_resource[args->resource];
if (bsd.which == -1)
which = linux_to_bsd_resource[args->resource];
if (which == -1)
return (EINVAL);
bsd_rlp = &p->p_rlimit[which];
bsd.rlp = stackgap_alloc(&sg, sizeof(struct rlimit));
error = getrlimit(td, &bsd);
if (error)
return (error);
rlim.rlim_cur = (l_ulong)bsd.rlp->rlim_cur;
rlim.rlim_max = (l_ulong)bsd.rlp->rlim_max;
rlim.rlim_cur = (l_ulong)bsd_rlp->rlim_cur;
rlim.rlim_max = (l_ulong)bsd_rlp->rlim_max;
return (copyout(&rlim, (caddr_t)args->rlim, sizeof(rlim)));
}
#endif /*!__alpha__*/

26
sys/compat/linux/linux_signal.c
View File

@ -34,6 +34,7 @@
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <machine/../linux/linux.h>
@ -134,36 +135,27 @@ int
linux_do_sigaction(struct thread *td, int linux_sig, l_sigaction_t *linux_nsa,
l_sigaction_t *linux_osa)
{
struct sigaction *nsa, *osa;
struct sigaction_args sa_args;
int error;
caddr_t sg = stackgap_init();
struct sigaction act, oact, *nsa, *osa;
int error, sig;
if (linux_sig <= 0 || linux_sig > LINUX_NSIG)
return (EINVAL);
if (linux_osa != NULL)
osa = stackgap_alloc(&sg, sizeof(struct sigaction));
else
osa = NULL;
osa = (linux_osa != NULL) ? &oact : NULL;
if (linux_nsa != NULL) {
nsa = stackgap_alloc(&sg, sizeof(struct sigaction));
nsa = &act;
linux_to_bsd_sigaction(linux_nsa, nsa);
}
else
} else
nsa = NULL;
#ifndef __alpha__
if (linux_sig <= LINUX_SIGTBLSZ)
sa_args.sig = linux_to_bsd_signal[_SIG_IDX(linux_sig)];
sig = linux_to_bsd_signal[_SIG_IDX(linux_sig)];
else
#endif
sa_args.sig = linux_sig;
sig = linux_sig;
sa_args.act = nsa;
sa_args.oact = osa;
error = sigaction(td, &sa_args);
error = kern_sigaction(td, sig, nsa, osa, 0);
if (error)
return (error);

55
sys/compat/linux/linux_stats.c
View File

@ -94,20 +94,19 @@ linux_newstat(struct thread *td, struct linux_newstat_args *args)
{
struct stat buf;
struct nameidata nd;
char *path;
int error;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(newstat))
printf(ARGS(newstat, "%s, *"), args->path);
printf(ARGS(newstat, "%s, *"), path);
#endif
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE,
args->path, td);
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path, td);
error = namei(&nd);
LFREEPATH(path);
if (error)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
@ -126,19 +125,19 @@ linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
int error;
struct stat sb;
struct nameidata nd;
caddr_t sg;
char *path;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(newlstat))
printf(ARGS(newlstat, "%s, *"), args->path);
printf(ARGS(newlstat, "%s, *"), path);
#endif
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE,
args->path, td);
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, path,
td);
error = namei(&nd);
LFREEPATH(path);
if (error)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
@ -231,19 +230,19 @@ linux_statfs(struct thread *td, struct linux_statfs_args *args)
struct statfs *bsd_statfs;
struct nameidata nd;
struct l_statfs linux_statfs;
char *path;
int error;
caddr_t sg;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(statfs))
printf(ARGS(statfs, "%s, *"), args->path);
printf(ARGS(statfs, "%s, *"), path);
#endif
ndp = &nd;
NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args->path, curthread);
NDINIT(ndp, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
error = namei(ndp);
LFREEPATH(path);
if (error)
return error;
NDFREE(ndp, NDF_ONLY_PNBUF);
@ -416,19 +415,19 @@ linux_stat64(struct thread *td, struct linux_stat64_args *args)
struct stat buf;
struct nameidata nd;
int error;
caddr_t sg;
char *filename;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->filename);
LCONVPATHEXIST(td, args->filename, &filename);
#ifdef DEBUG
if (ldebug(stat64))
printf(ARGS(stat64, "%s, *"), args->filename);
printf(ARGS(stat64, "%s, *"), filename);
#endif
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE,
args->filename, td);
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
td);
error = namei(&nd);
LFREEPATH(filename);
if (error)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
@ -447,19 +446,19 @@ linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
int error;
struct stat sb;
struct nameidata nd;
caddr_t sg;
char *filename;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->filename);
LCONVPATHEXIST(td, args->filename, &filename);
#ifdef DEBUG
if (ldebug(lstat64))
printf(ARGS(lstat64, "%s, *"), args->filename);
#endif
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_USERSPACE,
args->filename, td);
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF | NOOBJ, UIO_SYSSPACE, filename,
td);
error = namei(&nd);
LFREEPATH(filename);
if (error)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);

15
sys/compat/linux/linux_sysctl.c
View File

@ -80,20 +80,20 @@ linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
struct l___sysctl_args la;
l_int *mib;
int error, i;
caddr_t sg;
error = copyin((caddr_t)args->args, &la, sizeof(la));
if (error)
return (error);
if (la.nlen == 0 || la.nlen > LINUX_CTL_MAXNAME)
if (la.nlen <= 0 || la.nlen > LINUX_CTL_MAXNAME)
return (ENOTDIR);
sg = stackgap_init();
mib = stackgap_alloc(&sg, la.nlen * sizeof(l_int));
mib = malloc(la.nlen * sizeof(l_int), M_TEMP, M_WAITOK);
error = copyin(la.name, mib, la.nlen * sizeof(l_int));
if (error)
if (error) {
free(mib, M_TEMP);
return (error);
}
switch (mib[0]) {
case LINUX_CTL_KERN:
@ -102,7 +102,9 @@ linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
switch (mib[1]) {
case LINUX_KERN_VERSION:
return (handle_string(&la, version));
error = handle_string(&la, version);
free(mib, M_TEMP);
return (error);
default:
break;
}
@ -116,5 +118,6 @@ linux_sysctl(struct thread *td, struct linux_sysctl_args *args)
printf("%c%d", (i) ? ',' : '{', mib[i]);
printf("}\n");
free(mib, M_TEMP);
return (ENOTDIR);
}

40
sys/compat/linux/linux_uid16.c
View File

@ -33,6 +33,7 @@
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <machine/../linux/linux.h>
@ -44,48 +45,43 @@ DUMMY(setfsgid16);
DUMMY(getresuid16);
DUMMY(getresgid16);
#define CAST_NOCHG(x) (x == 0xFFFF) ? -1 : x;
#define CAST_NOCHG(x) ((x == 0xFFFF) ? -1 : x)
int
linux_chown16(struct thread *td, struct linux_chown16_args *args)
{
struct chown_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(chown16))
printf(ARGS(chown16, "%s, %d, %d"), args->path, args->uid,
args->gid);
printf(ARGS(chown16, "%s, %d, %d"), path, args->uid, args->gid);
#endif
bsd.path = args->path;
bsd.uid = CAST_NOCHG(args->uid);
bsd.gid = CAST_NOCHG(args->gid);
return (chown(td, &bsd));
error = kern_chown(td, path, UIO_SYSSPACE, CAST_NOCHG(args->uid),
CAST_NOCHG(args->gid));
LFREEPATH(path);
return (error);
}
int
linux_lchown16(struct thread *td, struct linux_lchown16_args *args)
{
struct lchown_args bsd;
caddr_t sg;
char *path;
int error;
sg = stackgap_init();
CHECKALTEXIST(td, &sg, args->path);
LCONVPATHEXIST(td, args->path, &path);
#ifdef DEBUG
if (ldebug(lchown16))
printf(ARGS(lchown16, "%s, %d, %d"), args->path, args->uid,
printf(ARGS(lchown16, "%s, %d, %d"), path, args->uid,
args->gid);
#endif
bsd.path = args->path;
bsd.uid = CAST_NOCHG(args->uid);
bsd.gid = CAST_NOCHG(args->gid);
return (lchown(td, &bsd));
error = kern_lchown(td, path, UIO_SYSSPACE, CAST_NOCHG(args->uid),
CAST_NOCHG(args->gid));
LFREEPATH(path);
return (error);
}
int

64
sys/i386/linux/linux_machdep.c
View File

@ -36,6 +36,7 @@
#include <sys/proc.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/syscallsubr.h>
#include <sys/sysproto.h>
#include <sys/unistd.h>
@ -685,22 +686,18 @@ linux_sigaction(struct thread *td, struct linux_sigaction_args *args)
int
linux_sigsuspend(struct thread *td, struct linux_sigsuspend_args *args)
{
struct sigsuspend_args bsd;
sigset_t *sigmask;
sigset_t sigmask;
l_sigset_t mask;
caddr_t sg = stackgap_init();
#ifdef DEBUG
if (ldebug(sigsuspend))
printf(ARGS(sigsuspend, "%08lx"), (unsigned long)args->mask);
#endif
sigmask = stackgap_alloc(&sg, sizeof(sigset_t));
LINUX_SIGEMPTYSET(mask);
mask.__bits[0] = args->mask;
linux_to_bsd_sigset(&mask, sigmask);
bsd.sigmask = sigmask;
return (sigsuspend(td, &bsd));
linux_to_bsd_sigset(&mask, &sigmask);
return (kern_sigsuspend(td, sigmask));
}
int
@ -709,9 +706,7 @@ linux_rt_sigsuspend(td, uap)
struct linux_rt_sigsuspend_args *uap;
{
l_sigset_t lmask;
sigset_t *bmask;
struct sigsuspend_args bsd;
caddr_t sg = stackgap_init();
sigset_t sigmask;
int error;
#ifdef DEBUG
@ -727,71 +722,54 @@ linux_rt_sigsuspend(td, uap)
if (error)
return (error);
bmask = stackgap_alloc(&sg, sizeof(sigset_t));
linux_to_bsd_sigset(&lmask, bmask);
bsd.sigmask = bmask;
return (sigsuspend(td, &bsd));
linux_to_bsd_sigset(&lmask, &sigmask);
return (kern_sigsuspend(td, sigmask));
}
int
linux_pause(struct thread *td, struct linux_pause_args *args)
{
struct proc *p = td->td_proc;
struct sigsuspend_args bsd;
sigset_t *sigmask;
caddr_t sg = stackgap_init();
sigset_t sigmask;
#ifdef DEBUG
if (ldebug(pause))
printf(ARGS(pause, ""));
#endif
sigmask = stackgap_alloc(&sg, sizeof(sigset_t));
PROC_LOCK(p);
*sigmask = p->p_sigmask;
sigmask = p->p_sigmask;
PROC_UNLOCK(p);
bsd.sigmask = sigmask;
return (sigsuspend(td, &bsd));
return (kern_sigsuspend(td, sigmask));
}
int
linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
{
struct sigaltstack_args bsd;
stack_t *ss, *oss;
stack_t ss, oss;
l_stack_t lss;
int error;
caddr_t sg = stackgap_init();
#ifdef DEBUG
if (ldebug(sigaltstack))
printf(ARGS(sigaltstack, "%p, %p"), uap->uss, uap->uoss);
#endif
if (uap->uss == NULL) {
ss = NULL;
} else {
if (uap->uss != NULL) {
error = copyin(uap->uss, &lss, sizeof(l_stack_t));
if (error)
return (error);
ss = stackgap_alloc(&sg, sizeof(stack_t));
ss->ss_sp = lss.ss_sp;
ss->ss_size = lss.ss_size;
ss->ss_flags = linux_to_bsd_sigaltstack(lss.ss_flags);
ss.ss_sp = lss.ss_sp;
ss.ss_size = lss.ss_size;
ss.ss_flags = linux_to_bsd_sigaltstack(lss.ss_flags);
}
oss = (uap->uoss != NULL)
? stackgap_alloc(&sg, sizeof(stack_t))
: NULL;
bsd.ss = ss;
bsd.oss = oss;
error = sigaltstack(td, &bsd);
if (!error && oss != NULL) {
lss.ss_sp = oss->ss_sp;
lss.ss_size = oss->ss_size;
lss.ss_flags = bsd_to_linux_sigaltstack(oss->ss_flags);
error = kern_sigaltstack(td, (uap->uoss != NULL) ? &oss : NULL,
(uap->uss != NULL) ? &ss : NULL);
if (!error && uap->uoss != NULL) {
lss.ss_sp = oss.ss_sp;
lss.ss_size = oss.ss_size;
lss.ss_flags = bsd_to_linux_sigaltstack(oss.ss_flags);
error = copyout(&lss, uap->uoss, sizeof(l_stack_t));
}

18
sys/i386/linux/linux_sysvec.c
View File

@ -45,6 +45,7 @@
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/syscallsubr.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
@ -597,14 +598,12 @@ linux_rt_sigreturn(td, args)
struct linux_rt_sigreturn_args *args;
{
struct proc *p = td->td_proc;
struct sigaltstack_args sasargs;
struct l_ucontext uc;
struct l_sigcontext *context;
l_stack_t *lss;
stack_t *ss;
stack_t ss;
register struct trapframe *regs;
int eflags;
caddr_t sg = stackgap_init();
regs = td->td_frame;
@ -681,20 +680,17 @@ linux_rt_sigreturn(td, args)
/*
* call sigaltstack & ignore results..
*/
ss = stackgap_alloc(&sg, sizeof(stack_t));
lss = &uc.uc_stack;
ss->ss_sp = lss->ss_sp;
ss->ss_size = lss->ss_size;
ss->ss_flags = linux_to_bsd_sigaltstack(lss->ss_flags);
ss.ss_sp = lss->ss_sp;
ss.ss_size = lss->ss_size;
ss.ss_flags = linux_to_bsd_sigaltstack(lss->ss_flags);
#ifdef DEBUG
if (ldebug(rt_sigreturn))
printf(LMSG("rt_sigret flags: 0x%x, sp: %p, ss: 0x%x, mask: 0x%x"),
ss->ss_flags, ss->ss_sp, ss->ss_size, context->sc_mask);
ss.ss_flags, ss.ss_sp, ss.ss_size, context->sc_mask);
#endif
sasargs.ss = ss;
sasargs.oss = NULL;
(void) sigaltstack(td, &sasargs);
(void)kern_sigaltstack(td, &ss, NULL);
return (EJUSTRETURN);
}