Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/sparc/kernel/sys_sunos.c b/arch/sparc/kernel/sys_sunos.c
new file mode 100644
index 0000000..81c894a
--- /dev/null
+++ b/arch/sparc/kernel/sys_sunos.c
@@ -0,0 +1,1194 @@
+/* $Id: sys_sunos.c,v 1.137 2002/02/08 03:57:14 davem Exp $
+ * sys_sunos.c: SunOS specific syscall compatibility support.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
+ *
+ * Based upon preliminary work which is:
+ *
+ * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/resource.h>
+#include <linux/ipc.h>
+#include <linux/shm.h>
+#include <linux/msg.h>
+#include <linux/sem.h>
+#include <linux/signal.h>
+#include <linux/uio.h>
+#include <linux/utsname.h>
+#include <linux/major.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/errno.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/syscalls.h>
+
+#include <net/sock.h>
+
+#include <asm/uaccess.h>
+#ifndef KERNEL_DS
+#include <linux/segment.h>
+#endif
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/pconf.h>
+#include <asm/idprom.h> /* for gethostid() */
+#include <asm/unistd.h>
+#include <asm/system.h>
+
+/* For the nfs mount emulation */
+#include <linux/socket.h>
+#include <linux/in.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs_mount.h>
+
+/* for sunos_select */
+#include <linux/time.h>
+#include <linux/personality.h>
+
+/* NR_OPEN is now larger and dynamic in recent kernels. */
+#define SUNOS_NR_OPEN 256
+
+/* We use the SunOS mmap() semantics. */
+asmlinkage unsigned long sunos_mmap(unsigned long addr, unsigned long len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long off)
+{
+ struct file * file = NULL;
+ unsigned long retval, ret_type;
+
+ if (flags & MAP_NORESERVE) {
+ static int cnt;
+ if (cnt++ < 10)
+ printk("%s: unimplemented SunOS MAP_NORESERVE mmap() flag\n",
+ current->comm);
+ flags &= ~MAP_NORESERVE;
+ }
+ retval = -EBADF;
+ if (!(flags & MAP_ANONYMOUS)) {
+ if (fd >= SUNOS_NR_OPEN)
+ goto out;
+ file = fget(fd);
+ if (!file)
+ goto out;
+ }
+
+ retval = -EINVAL;
+ /* If this is ld.so or a shared library doing an mmap
+ * of /dev/zero, transform it into an anonymous mapping.
+ * SunOS is so stupid some times... hmph!
+ */
+ if (file) {
+ if (imajor(file->f_dentry->d_inode) == MEM_MAJOR &&
+ iminor(file->f_dentry->d_inode) == 5) {
+ flags |= MAP_ANONYMOUS;
+ fput(file);
+ file = NULL;
+ }
+ }
+ ret_type = flags & _MAP_NEW;
+ flags &= ~_MAP_NEW;
+
+ if (!(flags & MAP_FIXED))
+ addr = 0;
+ else {
+ if (ARCH_SUN4C_SUN4 &&
+ (len > 0x20000000 ||
+ ((flags & MAP_FIXED) &&
+ addr < 0xe0000000 && addr + len > 0x20000000)))
+ goto out_putf;
+
+ /* See asm-sparc/uaccess.h */
+ if (len > TASK_SIZE - PAGE_SIZE ||
+ addr + len > TASK_SIZE - PAGE_SIZE)
+ goto out_putf;
+ }
+
+ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+ down_write(¤t->mm->mmap_sem);
+ retval = do_mmap(file, addr, len, prot, flags, off);
+ up_write(¤t->mm->mmap_sem);
+ if (!ret_type)
+ retval = ((retval < PAGE_OFFSET) ? 0 : retval);
+
+out_putf:
+ if (file)
+ fput(file);
+out:
+ return retval;
+}
+
+/* lmbench calls this, just say "yeah, ok" */
+asmlinkage int sunos_mctl(unsigned long addr, unsigned long len, int function, char *arg)
+{
+ return 0;
+}
+
+/* SunOS is completely broken... it returns 0 on success, otherwise
+ * ENOMEM. For sys_sbrk() it wants the old brk value as a return
+ * on success and ENOMEM as before on failure.
+ */
+asmlinkage int sunos_brk(unsigned long brk)
+{
+ int freepages, retval = -ENOMEM;
+ unsigned long rlim;
+ unsigned long newbrk, oldbrk;
+
+ down_write(¤t->mm->mmap_sem);
+ if (ARCH_SUN4C_SUN4) {
+ if (brk >= 0x20000000 && brk < 0xe0000000) {
+ goto out;
+ }
+ }
+
+ if (brk < current->mm->end_code)
+ goto out;
+
+ newbrk = PAGE_ALIGN(brk);
+ oldbrk = PAGE_ALIGN(current->mm->brk);
+ retval = 0;
+ if (oldbrk == newbrk) {
+ current->mm->brk = brk;
+ goto out;
+ }
+
+ /*
+ * Always allow shrinking brk
+ */
+ if (brk <= current->mm->brk) {
+ current->mm->brk = brk;
+ do_munmap(current->mm, newbrk, oldbrk-newbrk);
+ goto out;
+ }
+ /*
+ * Check against rlimit and stack..
+ */
+ retval = -ENOMEM;
+ rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
+ if (rlim >= RLIM_INFINITY)
+ rlim = ~0;
+ if (brk - current->mm->end_code > rlim)
+ goto out;
+
+ /*
+ * Check against existing mmap mappings.
+ */
+ if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE))
+ goto out;
+
+ /*
+ * stupid algorithm to decide if we have enough memory: while
+ * simple, it hopefully works in most obvious cases.. Easy to
+ * fool it, but this should catch most mistakes.
+ */
+ freepages = get_page_cache_size();
+ freepages >>= 1;
+ freepages += nr_free_pages();
+ freepages += nr_swap_pages;
+ freepages -= num_physpages >> 4;
+ freepages -= (newbrk-oldbrk) >> PAGE_SHIFT;
+ if (freepages < 0)
+ goto out;
+ /*
+ * Ok, we have probably got enough memory - let it rip.
+ */
+ current->mm->brk = brk;
+ do_brk(oldbrk, newbrk-oldbrk);
+ retval = 0;
+out:
+ up_write(¤t->mm->mmap_sem);
+ return retval;
+}
+
+asmlinkage unsigned long sunos_sbrk(int increment)
+{
+ int error;
+ unsigned long oldbrk;
+
+ /* This should do it hopefully... */
+ lock_kernel();
+ oldbrk = current->mm->brk;
+ error = sunos_brk(((int) current->mm->brk) + increment);
+ if (!error)
+ error = oldbrk;
+ unlock_kernel();
+ return error;
+}
+
+/* XXX Completely undocumented, and completely magic...
+ * XXX I believe it is to increase the size of the stack by
+ * XXX argument 'increment' and return the new end of stack
+ * XXX area. Wheee...
+ */
+asmlinkage unsigned long sunos_sstk(int increment)
+{
+ lock_kernel();
+ printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n",
+ current->comm, increment);
+ unlock_kernel();
+ return -1;
+}
+
+/* Give hints to the kernel as to what paging strategy to use...
+ * Completely bogus, don't remind me.
+ */
+#define VA_NORMAL 0 /* Normal vm usage expected */
+#define VA_ABNORMAL 1 /* Abnormal/random vm usage probable */
+#define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */
+#define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */
+static char *vstrings[] = {
+ "VA_NORMAL",
+ "VA_ABNORMAL",
+ "VA_SEQUENTIAL",
+ "VA_INVALIDATE",
+};
+
+asmlinkage void sunos_vadvise(unsigned long strategy)
+{
+ /* I wanna see who uses this... */
+ lock_kernel();
+ printk("%s: Advises us to use %s paging strategy\n",
+ current->comm,
+ strategy <= 3 ? vstrings[strategy] : "BOGUS");
+ unlock_kernel();
+}
+
+/* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE
+ * resource limit and is for backwards compatibility with older sunos
+ * revs.
+ */
+asmlinkage long sunos_getdtablesize(void)
+{
+ return SUNOS_NR_OPEN;
+}
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+asmlinkage unsigned long sunos_sigblock(unsigned long blk_mask)
+{
+ unsigned long old;
+
+ spin_lock_irq(¤t->sighand->siglock);
+ old = current->blocked.sig[0];
+ current->blocked.sig[0] |= (blk_mask & _BLOCKABLE);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+ return old;
+}
+
+asmlinkage unsigned long sunos_sigsetmask(unsigned long newmask)
+{
+ unsigned long retval;
+
+ spin_lock_irq(¤t->sighand->siglock);
+ retval = current->blocked.sig[0];
+ current->blocked.sig[0] = (newmask & _BLOCKABLE);
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+ return retval;
+}
+
+/* SunOS getdents is very similar to the newer Linux (iBCS2 compliant) */
+/* getdents system call, the format of the structure just has a different */
+/* layout (d_off+d_ino instead of d_ino+d_off) */
+struct sunos_dirent {
+ long d_off;
+ unsigned long d_ino;
+ unsigned short d_reclen;
+ unsigned short d_namlen;
+ char d_name[1];
+};
+
+struct sunos_dirent_callback {
+ struct sunos_dirent __user *curr;
+ struct sunos_dirent __user *previous;
+ int count;
+ int error;
+};
+
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
+
+static int sunos_filldir(void * __buf, const char * name, int namlen,
+ loff_t offset, ino_t ino, unsigned int d_type)
+{
+ struct sunos_dirent __user *dirent;
+ struct sunos_dirent_callback * buf = __buf;
+ int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+ buf->error = -EINVAL; /* only used if we fail.. */
+ if (reclen > buf->count)
+ return -EINVAL;
+ dirent = buf->previous;
+ if (dirent)
+ put_user(offset, &dirent->d_off);
+ dirent = buf->curr;
+ buf->previous = dirent;
+ put_user(ino, &dirent->d_ino);
+ put_user(namlen, &dirent->d_namlen);
+ put_user(reclen, &dirent->d_reclen);
+ copy_to_user(dirent->d_name, name, namlen);
+ put_user(0, dirent->d_name + namlen);
+ dirent = (void __user *) dirent + reclen;
+ buf->curr = dirent;
+ buf->count -= reclen;
+ return 0;
+}
+
+asmlinkage int sunos_getdents(unsigned int fd, void __user *dirent, int cnt)
+{
+ struct file * file;
+ struct sunos_dirent __user *lastdirent;
+ struct sunos_dirent_callback buf;
+ int error = -EBADF;
+
+ if (fd >= SUNOS_NR_OPEN)
+ goto out;
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ error = -EINVAL;
+ if (cnt < (sizeof(struct sunos_dirent) + 255))
+ goto out_putf;
+
+ buf.curr = (struct sunos_dirent __user *) dirent;
+ buf.previous = NULL;
+ buf.count = cnt;
+ buf.error = 0;
+
+ error = vfs_readdir(file, sunos_filldir, &buf);
+ if (error < 0)
+ goto out_putf;
+
+ lastdirent = buf.previous;
+ error = buf.error;
+ if (lastdirent) {
+ put_user(file->f_pos, &lastdirent->d_off);
+ error = cnt - buf.count;
+ }
+
+out_putf:
+ fput(file);
+out:
+ return error;
+}
+
+/* Old sunos getdirentries, severely broken compatibility stuff here. */
+struct sunos_direntry {
+ unsigned long d_ino;
+ unsigned short d_reclen;
+ unsigned short d_namlen;
+ char d_name[1];
+};
+
+struct sunos_direntry_callback {
+ struct sunos_direntry __user *curr;
+ struct sunos_direntry __user *previous;
+ int count;
+ int error;
+};
+
+static int sunos_filldirentry(void * __buf, const char * name, int namlen,
+ loff_t offset, ino_t ino, unsigned int d_type)
+{
+ struct sunos_direntry __user *dirent;
+ struct sunos_direntry_callback *buf = __buf;
+ int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+ buf->error = -EINVAL; /* only used if we fail.. */
+ if (reclen > buf->count)
+ return -EINVAL;
+ dirent = buf->previous;
+ dirent = buf->curr;
+ buf->previous = dirent;
+ put_user(ino, &dirent->d_ino);
+ put_user(namlen, &dirent->d_namlen);
+ put_user(reclen, &dirent->d_reclen);
+ copy_to_user(dirent->d_name, name, namlen);
+ put_user(0, dirent->d_name + namlen);
+ dirent = (void __user *) dirent + reclen;
+ buf->curr = dirent;
+ buf->count -= reclen;
+ return 0;
+}
+
+asmlinkage int sunos_getdirentries(unsigned int fd, void __user *dirent,
+ int cnt, unsigned int __user *basep)
+{
+ struct file * file;
+ struct sunos_direntry __user *lastdirent;
+ struct sunos_direntry_callback buf;
+ int error = -EBADF;
+
+ if (fd >= SUNOS_NR_OPEN)
+ goto out;
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ error = -EINVAL;
+ if (cnt < (sizeof(struct sunos_direntry) + 255))
+ goto out_putf;
+
+ buf.curr = (struct sunos_direntry __user *) dirent;
+ buf.previous = NULL;
+ buf.count = cnt;
+ buf.error = 0;
+
+ error = vfs_readdir(file, sunos_filldirentry, &buf);
+ if (error < 0)
+ goto out_putf;
+
+ lastdirent = buf.previous;
+ error = buf.error;
+ if (lastdirent) {
+ put_user(file->f_pos, basep);
+ error = cnt - buf.count;
+ }
+
+out_putf:
+ fput(file);
+out:
+ return error;
+}
+
+struct sunos_utsname {
+ char sname[9];
+ char nname[9];
+ char nnext[56];
+ char rel[9];
+ char ver[9];
+ char mach[9];
+};
+
+asmlinkage int sunos_uname(struct sunos_utsname __user *name)
+{
+ int ret;
+ down_read(&uts_sem);
+ ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1);
+ if (!ret) {
+ ret |= __copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1);
+ ret |= __put_user('\0', &name->nname[8]);
+ ret |= __copy_to_user(&name->rel[0], &system_utsname.release[0], sizeof(name->rel) - 1);
+ ret |= __copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1);
+ ret |= __copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1);
+ }
+ up_read(&uts_sem);
+ return ret ? -EFAULT : 0;
+}
+
+asmlinkage int sunos_nosys(void)
+{
+ struct pt_regs *regs;
+ siginfo_t info;
+ static int cnt;
+
+ lock_kernel();
+ regs = current->thread.kregs;
+ info.si_signo = SIGSYS;
+ info.si_errno = 0;
+ info.si_code = __SI_FAULT|0x100;
+ info.si_addr = (void __user *)regs->pc;
+ info.si_trapno = regs->u_regs[UREG_G1];
+ send_sig_info(SIGSYS, &info, current);
+ if (cnt++ < 4) {
+ printk("Process makes ni_syscall number %d, register dump:\n",
+ (int) regs->u_regs[UREG_G1]);
+ show_regs(regs);
+ }
+ unlock_kernel();
+ return -ENOSYS;
+}
+
+/* This is not a real and complete implementation yet, just to keep
+ * the easy SunOS binaries happy.
+ */
+asmlinkage int sunos_fpathconf(int fd, int name)
+{
+ int ret;
+
+ switch(name) {
+ case _PCONF_LINK:
+ ret = LINK_MAX;
+ break;
+ case _PCONF_CANON:
+ ret = MAX_CANON;
+ break;
+ case _PCONF_INPUT:
+ ret = MAX_INPUT;
+ break;
+ case _PCONF_NAME:
+ ret = NAME_MAX;
+ break;
+ case _PCONF_PATH:
+ ret = PATH_MAX;
+ break;
+ case _PCONF_PIPE:
+ ret = PIPE_BUF;
+ break;
+ case _PCONF_CHRESTRICT: /* XXX Investigate XXX */
+ ret = 1;
+ break;
+ case _PCONF_NOTRUNC: /* XXX Investigate XXX */
+ case _PCONF_VDISABLE:
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+asmlinkage int sunos_pathconf(char __user *path, int name)
+{
+ int ret;
+
+ ret = sunos_fpathconf(0, name); /* XXX cheese XXX */
+ return ret;
+}
+
+/* SunOS mount system call emulation */
+
+asmlinkage int sunos_select(int width, fd_set __user *inp, fd_set __user *outp,
+ fd_set __user *exp, struct timeval __user *tvp)
+{
+ int ret;
+
+ /* SunOS binaries expect that select won't change the tvp contents */
+ ret = sys_select (width, inp, outp, exp, tvp);
+ if (ret == -EINTR && tvp) {
+ time_t sec, usec;
+
+ __get_user(sec, &tvp->tv_sec);
+ __get_user(usec, &tvp->tv_usec);
+
+ if (sec == 0 && usec == 0)
+ ret = 0;
+ }
+ return ret;
+}
+
+asmlinkage void sunos_nop(void)
+{
+ return;
+}
+
+/* SunOS mount/umount. */
+#define SMNT_RDONLY 1
+#define SMNT_NOSUID 2
+#define SMNT_NEWTYPE 4
+#define SMNT_GRPID 8
+#define SMNT_REMOUNT 16
+#define SMNT_NOSUB 32
+#define SMNT_MULTI 64
+#define SMNT_SYS5 128
+
+struct sunos_fh_t {
+ char fh_data [NFS_FHSIZE];
+};
+
+struct sunos_nfs_mount_args {
+ struct sockaddr_in __user *addr; /* file server address */
+ struct nfs_fh __user *fh; /* File handle to be mounted */
+ int flags; /* flags */
+ int wsize; /* write size in bytes */
+ int rsize; /* read size in bytes */
+ int timeo; /* initial timeout in .1 secs */
+ int retrans; /* times to retry send */
+ char __user *hostname; /* server's hostname */
+ int acregmin; /* attr cache file min secs */
+ int acregmax; /* attr cache file max secs */
+ int acdirmin; /* attr cache dir min secs */
+ int acdirmax; /* attr cache dir max secs */
+ char __user *netname; /* server's netname */
+};
+
+
+/* Bind the socket on a local reserved port and connect it to the
+ * remote server. This on Linux/i386 is done by the mount program,
+ * not by the kernel.
+ */
+static int
+sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr)
+{
+ struct sockaddr_in local;
+ struct sockaddr_in server;
+ int try_port;
+ struct socket *socket;
+ struct inode *inode;
+ struct file *file;
+ int ret, result = 0;
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ inode = file->f_dentry->d_inode;
+
+ socket = SOCKET_I(inode);
+ local.sin_family = AF_INET;
+ local.sin_addr.s_addr = INADDR_ANY;
+
+ /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */
+ try_port = 1024;
+ do {
+ local.sin_port = htons (--try_port);
+ ret = socket->ops->bind(socket, (struct sockaddr*)&local,
+ sizeof(local));
+ } while (ret && try_port > (1024 / 2));
+
+ if (ret)
+ goto out_putf;
+
+ server.sin_family = AF_INET;
+ server.sin_addr = addr->sin_addr;
+ server.sin_port = NFS_PORT;
+
+ /* Call sys_connect */
+ ret = socket->ops->connect (socket, (struct sockaddr *) &server,
+ sizeof (server), file->f_flags);
+ if (ret >= 0)
+ result = 1;
+
+out_putf:
+ fput(file);
+out:
+ return result;
+}
+
+static int get_default (int value, int def_value)
+{
+ if (value)
+ return value;
+ else
+ return def_value;
+}
+
+static int sunos_nfs_mount(char *dir_name, int linux_flags, void __user *data)
+{
+ int server_fd, err;
+ char *the_name, *mount_page;
+ struct nfs_mount_data linux_nfs_mount;
+ struct sunos_nfs_mount_args sunos_mount;
+
+ /* Ok, here comes the fun part: Linux's nfs mount needs a
+ * socket connection to the server, but SunOS mount does not
+ * require this, so we use the information on the destination
+ * address to create a socket and bind it to a reserved
+ * port on this system
+ */
+ if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount)))
+ return -EFAULT;
+
+ server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if (server_fd < 0)
+ return -ENXIO;
+
+ if (copy_from_user(&linux_nfs_mount.addr,sunos_mount.addr,
+ sizeof(*sunos_mount.addr)) ||
+ copy_from_user(&linux_nfs_mount.root,sunos_mount.fh,
+ sizeof(*sunos_mount.fh))) {
+ sys_close (server_fd);
+ return -EFAULT;
+ }
+
+ if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){
+ sys_close (server_fd);
+ return -ENXIO;
+ }
+
+ /* Now, bind it to a locally reserved port */
+ linux_nfs_mount.version = NFS_MOUNT_VERSION;
+ linux_nfs_mount.flags = sunos_mount.flags;
+ linux_nfs_mount.fd = server_fd;
+
+ linux_nfs_mount.rsize = get_default (sunos_mount.rsize, 8192);
+ linux_nfs_mount.wsize = get_default (sunos_mount.wsize, 8192);
+ linux_nfs_mount.timeo = get_default (sunos_mount.timeo, 10);
+ linux_nfs_mount.retrans = sunos_mount.retrans;
+
+ linux_nfs_mount.acregmin = sunos_mount.acregmin;
+ linux_nfs_mount.acregmax = sunos_mount.acregmax;
+ linux_nfs_mount.acdirmin = sunos_mount.acdirmin;
+ linux_nfs_mount.acdirmax = sunos_mount.acdirmax;
+
+ the_name = getname(sunos_mount.hostname);
+ if (IS_ERR(the_name))
+ return PTR_ERR(the_name);
+
+ strlcpy(linux_nfs_mount.hostname, the_name,
+ sizeof(linux_nfs_mount.hostname));
+ putname (the_name);
+
+ mount_page = (char *) get_zeroed_page(GFP_KERNEL);
+ if (!mount_page)
+ return -ENOMEM;
+
+ memcpy(mount_page, &linux_nfs_mount, sizeof(linux_nfs_mount));
+
+ err = do_mount("", dir_name, "nfs", linux_flags, mount_page);
+
+ free_page((unsigned long) mount_page);
+ return err;
+}
+
+asmlinkage int
+sunos_mount(char __user *type, char __user *dir, int flags, void __user *data)
+{
+ int linux_flags = 0;
+ int ret = -EINVAL;
+ char *dev_fname = NULL;
+ char *dir_page, *type_page;
+
+ if (!capable (CAP_SYS_ADMIN))
+ return -EPERM;
+
+ lock_kernel();
+ /* We don't handle the integer fs type */
+ if ((flags & SMNT_NEWTYPE) == 0)
+ goto out;
+
+ /* Do not allow for those flags we don't support */
+ if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5))
+ goto out;
+
+ if (flags & SMNT_REMOUNT)
+ linux_flags |= MS_REMOUNT;
+ if (flags & SMNT_RDONLY)
+ linux_flags |= MS_RDONLY;
+ if (flags & SMNT_NOSUID)
+ linux_flags |= MS_NOSUID;
+
+ dir_page = getname(dir);
+ ret = PTR_ERR(dir_page);
+ if (IS_ERR(dir_page))
+ goto out;
+
+ type_page = getname(type);
+ ret = PTR_ERR(type_page);
+ if (IS_ERR(type_page))
+ goto out1;
+
+ if (strcmp(type_page, "ext2") == 0) {
+ dev_fname = getname(data);
+ } else if (strcmp(type_page, "iso9660") == 0) {
+ dev_fname = getname(data);
+ } else if (strcmp(type_page, "minix") == 0) {
+ dev_fname = getname(data);
+ } else if (strcmp(type_page, "nfs") == 0) {
+ ret = sunos_nfs_mount (dir_page, flags, data);
+ goto out2;
+ } else if (strcmp(type_page, "ufs") == 0) {
+ printk("Warning: UFS filesystem mounts unsupported.\n");
+ ret = -ENODEV;
+ goto out2;
+ } else if (strcmp(type_page, "proc")) {
+ ret = -ENODEV;
+ goto out2;
+ }
+ ret = PTR_ERR(dev_fname);
+ if (IS_ERR(dev_fname))
+ goto out2;
+ ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL);
+ if (dev_fname)
+ putname(dev_fname);
+out2:
+ putname(type_page);
+out1:
+ putname(dir_page);
+out:
+ unlock_kernel();
+ return ret;
+}
+
+
+asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid)
+{
+ int ret;
+
+ /* So stupid... */
+ if ((!pid || pid == current->pid) &&
+ !pgid) {
+ sys_setsid();
+ ret = 0;
+ } else {
+ ret = sys_setpgid(pid, pgid);
+ }
+ return ret;
+}
+
+/* So stupid... */
+asmlinkage int sunos_wait4(pid_t pid, unsigned int __user *stat_addr,
+ int options, struct rusage __user*ru)
+{
+ int ret;
+
+ ret = sys_wait4((pid ? pid : -1), stat_addr, options, ru);
+ return ret;
+}
+
+extern int kill_pg(int, int, int);
+asmlinkage int sunos_killpg(int pgrp, int sig)
+{
+ int ret;
+
+ lock_kernel();
+ ret = kill_pg(pgrp, sig, 0);
+ unlock_kernel();
+ return ret;
+}
+
+asmlinkage int sunos_audit(void)
+{
+ lock_kernel();
+ printk ("sys_audit\n");
+ unlock_kernel();
+ return -1;
+}
+
+asmlinkage unsigned long sunos_gethostid(void)
+{
+ unsigned long ret;
+
+ lock_kernel();
+ ret = ((unsigned long)idprom->id_machtype << 24) |
+ (unsigned long)idprom->id_sernum;
+ unlock_kernel();
+ return ret;
+}
+
+/* sysconf options, for SunOS compatibility */
+#define _SC_ARG_MAX 1
+#define _SC_CHILD_MAX 2
+#define _SC_CLK_TCK 3
+#define _SC_NGROUPS_MAX 4
+#define _SC_OPEN_MAX 5
+#define _SC_JOB_CONTROL 6
+#define _SC_SAVED_IDS 7
+#define _SC_VERSION 8
+
+asmlinkage long sunos_sysconf (int name)
+{
+ long ret;
+
+ switch (name){
+ case _SC_ARG_MAX:
+ ret = ARG_MAX;
+ break;
+ case _SC_CHILD_MAX:
+ ret = CHILD_MAX;
+ break;
+ case _SC_CLK_TCK:
+ ret = HZ;
+ break;
+ case _SC_NGROUPS_MAX:
+ ret = NGROUPS_MAX;
+ break;
+ case _SC_OPEN_MAX:
+ ret = OPEN_MAX;
+ break;
+ case _SC_JOB_CONTROL:
+ ret = 1; /* yes, we do support job control */
+ break;
+ case _SC_SAVED_IDS:
+ ret = 1; /* yes, we do support saved uids */
+ break;
+ case _SC_VERSION:
+ /* mhm, POSIX_VERSION is in /usr/include/unistd.h
+ * should it go on /usr/include/linux?
+ */
+ ret = 199009L;
+ break;
+ default:
+ ret = -1;
+ break;
+ };
+ return ret;
+}
+
+asmlinkage int sunos_semsys(int op, unsigned long arg1, unsigned long arg2,
+ unsigned long arg3, void *ptr)
+{
+ union semun arg4;
+ int ret;
+
+ switch (op) {
+ case 0:
+ /* Most arguments match on a 1:1 basis but cmd doesn't */
+ switch(arg3) {
+ case 4:
+ arg3=GETPID; break;
+ case 5:
+ arg3=GETVAL; break;
+ case 6:
+ arg3=GETALL; break;
+ case 3:
+ arg3=GETNCNT; break;
+ case 7:
+ arg3=GETZCNT; break;
+ case 8:
+ arg3=SETVAL; break;
+ case 9:
+ arg3=SETALL; break;
+ }
+ /* sys_semctl(): */
+ /* value to modify semaphore to */
+ arg4.__pad = (void __user *) ptr;
+ ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4 );
+ break;
+ case 1:
+ /* sys_semget(): */
+ ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3);
+ break;
+ case 2:
+ /* sys_semop(): */
+ ret = sys_semop((int)arg1, (struct sembuf __user *)arg2, (unsigned)arg3);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ };
+ return ret;
+}
+
+asmlinkage int sunos_msgsys(int op, unsigned long arg1, unsigned long arg2,
+ unsigned long arg3, unsigned long arg4)
+{
+ struct sparc_stackf *sp;
+ unsigned long arg5;
+ int rval;
+
+ switch(op) {
+ case 0:
+ rval = sys_msgget((key_t)arg1, (int)arg2);
+ break;
+ case 1:
+ rval = sys_msgctl((int)arg1, (int)arg2,
+ (struct msqid_ds __user *)arg3);
+ break;
+ case 2:
+ lock_kernel();
+ sp = (struct sparc_stackf *)current->thread.kregs->u_regs[UREG_FP];
+ arg5 = sp->xxargs[0];
+ unlock_kernel();
+ rval = sys_msgrcv((int)arg1, (struct msgbuf __user *)arg2,
+ (size_t)arg3, (long)arg4, (int)arg5);
+ break;
+ case 3:
+ rval = sys_msgsnd((int)arg1, (struct msgbuf __user *)arg2,
+ (size_t)arg3, (int)arg4);
+ break;
+ default:
+ rval = -EINVAL;
+ break;
+ }
+ return rval;
+}
+
+asmlinkage int sunos_shmsys(int op, unsigned long arg1, unsigned long arg2,
+ unsigned long arg3)
+{
+ unsigned long raddr;
+ int rval;
+
+ switch(op) {
+ case 0:
+ /* do_shmat(): attach a shared memory area */
+ rval = do_shmat((int)arg1,(char __user *)arg2,(int)arg3,&raddr);
+ if (!rval)
+ rval = (int) raddr;
+ break;
+ case 1:
+ /* sys_shmctl(): modify shared memory area attr. */
+ rval = sys_shmctl((int)arg1,(int)arg2,(struct shmid_ds __user *)arg3);
+ break;
+ case 2:
+ /* sys_shmdt(): detach a shared memory area */
+ rval = sys_shmdt((char __user *)arg1);
+ break;
+ case 3:
+ /* sys_shmget(): get a shared memory area */
+ rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3);
+ break;
+ default:
+ rval = -EINVAL;
+ break;
+ };
+ return rval;
+}
+
+#define SUNOS_EWOULDBLOCK 35
+
+/* see the sunos man page read(2v) for an explanation
+ of this garbage. We use O_NDELAY to mark
+ file descriptors that have been set non-blocking
+ using 4.2BSD style calls. (tridge) */
+
+static inline int check_nonblock(int ret, int fd)
+{
+ if (ret == -EAGAIN) {
+ struct file * file = fget(fd);
+ if (file) {
+ if (file->f_flags & O_NDELAY)
+ ret = -SUNOS_EWOULDBLOCK;
+ fput(file);
+ }
+ }
+ return ret;
+}
+
+asmlinkage int sunos_read(unsigned int fd, char __user *buf, int count)
+{
+ int ret;
+
+ ret = check_nonblock(sys_read(fd,buf,count),fd);
+ return ret;
+}
+
+asmlinkage int sunos_readv(unsigned long fd, const struct iovec __user *vector,
+ long count)
+{
+ int ret;
+
+ ret = check_nonblock(sys_readv(fd,vector,count),fd);
+ return ret;
+}
+
+asmlinkage int sunos_write(unsigned int fd, char __user *buf, int count)
+{
+ int ret;
+
+ ret = check_nonblock(sys_write(fd,buf,count),fd);
+ return ret;
+}
+
+asmlinkage int sunos_writev(unsigned long fd,
+ const struct iovec __user *vector, long count)
+{
+ int ret;
+
+ ret = check_nonblock(sys_writev(fd,vector,count),fd);
+ return ret;
+}
+
+asmlinkage int sunos_recv(int fd, void __user *ubuf, int size, unsigned flags)
+{
+ int ret;
+
+ ret = check_nonblock(sys_recv(fd,ubuf,size,flags),fd);
+ return ret;
+}
+
+asmlinkage int sunos_send(int fd, void __user *buff, int len, unsigned flags)
+{
+ int ret;
+
+ ret = check_nonblock(sys_send(fd,buff,len,flags),fd);
+ return ret;
+}
+
+asmlinkage int sunos_accept(int fd, struct sockaddr __user *sa,
+ int __user *addrlen)
+{
+ int ret;
+
+ while (1) {
+ ret = check_nonblock(sys_accept(fd,sa,addrlen),fd);
+ if (ret != -ENETUNREACH && ret != -EHOSTUNREACH)
+ break;
+ }
+
+ return ret;
+}
+
+#define SUNOS_SV_INTERRUPT 2
+
+asmlinkage int
+sunos_sigaction(int sig, const struct old_sigaction __user *act,
+ struct old_sigaction __user *oact)
+{
+ struct k_sigaction new_ka, old_ka;
+ int ret;
+
+ if (act) {
+ old_sigset_t mask;
+
+ if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+ __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
+ __get_user(new_ka.sa.sa_flags, &act->sa_flags))
+ return -EFAULT;
+ __get_user(mask, &act->sa_mask);
+ new_ka.sa.sa_restorer = NULL;
+ new_ka.ka_restorer = NULL;
+ siginitset(&new_ka.sa.sa_mask, mask);
+ new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
+ }
+
+ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+ if (!ret && oact) {
+ /* In the clone() case we could copy half consistent
+ * state to the user, however this could sleep and
+ * deadlock us if we held the signal lock on SMP. So for
+ * now I take the easy way out and do no locking.
+ * But then again we don't support SunOS lwp's anyways ;-)
+ */
+ old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT;
+ if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+ __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
+ __put_user(old_ka.sa.sa_flags, &oact->sa_flags))
+ return -EFAULT;
+ __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+ }
+
+ return ret;
+}
+
+
+asmlinkage int sunos_setsockopt(int fd, int level, int optname,
+ char __user *optval, int optlen)
+{
+ int tr_opt = optname;
+ int ret;
+
+ if (level == SOL_IP) {
+ /* Multicast socketopts (ttl, membership) */
+ if (tr_opt >=2 && tr_opt <= 6)
+ tr_opt += 30;
+ }
+ ret = sys_setsockopt(fd, level, tr_opt, optval, optlen);
+ return ret;
+}
+
+asmlinkage int sunos_getsockopt(int fd, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ int tr_opt = optname;
+ int ret;
+
+ if (level == SOL_IP) {
+ /* Multicast socketopts (ttl, membership) */
+ if (tr_opt >=2 && tr_opt <= 6)
+ tr_opt += 30;
+ }
+ ret = sys_getsockopt(fd, level, tr_opt, optval, optlen);
+ return ret;
+}