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/*
* sysirix.c: IRIX system call emulation.
*
* Copyright (C) 1996 David S. Miller
* Copyright (C) 1997 Miguel de Icaza
* Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/pagemap.h>
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/errno.h>
#include <linux/timex.h>
#include <linux/times.h>
#include <linux/elf.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/utsname.h>
#include <linux/file.h>
#include <asm/ptrace.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
#include <asm/inventory.h>
/* 2,191 lines of complete and utter shit coming up... */
extern int max_threads;
/* The sysmp commands supported thus far. */
#define MP_NPROCS 1 /* # processor in complex */
#define MP_NAPROCS 2 /* # active processors in complex */
#define MP_PGSIZE 14 /* Return system page size in v1. */
asmlinkage int irix_sysmp(struct pt_regs *regs)
{
unsigned long cmd;
int base = 0;
int error = 0;
if(regs->regs[2] == 1000)
base = 1;
cmd = regs->regs[base + 4];
switch(cmd) {
case MP_PGSIZE:
error = PAGE_SIZE;
break;
case MP_NPROCS:
case MP_NAPROCS:
error = smp_num_cpus;
break;
default:
printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
current->comm, current->pid, (int)cmd);
error = -EINVAL;
break;
}
return error;
}
/* The prctl commands. */
#define PR_MAXPROCS 1 /* Tasks/user. */
#define PR_ISBLOCKED 2 /* If blocked, return 1. */
#define PR_SETSTACKSIZE 3 /* Set largest task stack size. */
#define PR_GETSTACKSIZE 4 /* Get largest task stack size. */
#define PR_MAXPPROCS 5 /* Num parallel tasks. */
#define PR_UNBLKONEXEC 6 /* When task exec/exit's, unblock. */
#define PR_SETEXITSIG 8 /* When task exit's, set signal. */
#define PR_RESIDENT 9 /* Make task unswappable. */
#define PR_ATTACHADDR 10 /* (Re-)Connect a vma to a task. */
#define PR_DETACHADDR 11 /* Disconnect a vma from a task. */
#define PR_TERMCHILD 12 /* When parent sleeps with fishes, kill child. */
#define PR_GETSHMASK 13 /* Get the sproc() share mask. */
#define PR_GETNSHARE 14 /* Number of share group members. */
#define PR_COREPID 15 /* Add task pid to name when it core. */
#define PR_ATTACHADDRPERM 16 /* (Re-)Connect vma, with specified prot. */
#define PR_PTHREADEXIT 17 /* Kill a pthread without prejudice. */
asmlinkage int irix_prctl(struct pt_regs *regs)
{
unsigned long cmd;
int error = 0, base = 0;
if (regs->regs[2] == 1000)
base = 1;
cmd = regs->regs[base + 4];
switch (cmd) {
case PR_MAXPROCS:
printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
current->comm, current->pid);
error = max_threads;
break;
case PR_ISBLOCKED: {
struct task_struct *task;
printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
current->comm, current->pid);
read_lock(&tasklist_lock);
task = find_task_by_pid(regs->regs[base + 5]);
error = -ESRCH;
if (error)
error = (task->run_list.next != NULL);
read_unlock(&tasklist_lock);
/* Can _your_ OS find this out that fast? */
break;
}
case PR_SETSTACKSIZE: {
long value = regs->regs[base + 5];
printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
current->comm, current->pid, (unsigned long) value);
if (value > RLIM_INFINITY)
value = RLIM_INFINITY;
if (capable(CAP_SYS_ADMIN)) {
current->rlim[RLIMIT_STACK].rlim_max =
current->rlim[RLIMIT_STACK].rlim_cur = value;
error = value;
break;
}
if (value > current->rlim[RLIMIT_STACK].rlim_max) {
error = -EINVAL;
break;
}
current->rlim[RLIMIT_STACK].rlim_cur = value;
error = value;
break;
}
case PR_GETSTACKSIZE:
printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
current->comm, current->pid);
error = current->rlim[RLIMIT_STACK].rlim_cur;
break;
case PR_MAXPPROCS:
printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
current->comm, current->pid);
error = 1;
break;
case PR_UNBLKONEXEC:
printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_SETEXITSIG:
printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
current->comm, current->pid);
/* We can probably play some game where we set the task
* exit_code to some non-zero value when this is requested,
* and check whether exit_code is already set in do_exit().
*/
error = -EINVAL;
break;
case PR_RESIDENT:
printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
current->comm, current->pid);
error = 0; /* Compatibility indeed. */
break;
case PR_ATTACHADDR:
printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_DETACHADDR:
printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_TERMCHILD:
printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_GETSHMASK:
printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
current->comm, current->pid);
error = -EINVAL; /* Until I have the sproc() stuff in. */
break;
case PR_GETNSHARE:
error = 0; /* Until I have the sproc() stuff in. */
break;
case PR_COREPID:
printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_ATTACHADDRPERM:
printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
current->comm, current->pid);
error = -EINVAL;
break;
case PR_PTHREADEXIT:
printk("irix_prctl[%s:%d]: Wants PR_PTHREADEXIT\n",
current->comm, current->pid);
do_exit(regs->regs[base + 5]);
default:
printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
current->comm, current->pid, (int)cmd);
error = -EINVAL;
break;
}
return error;
}
#undef DEBUG_PROCGRPS
extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
extern asmlinkage int sys_setpgid(pid_t pid, pid_t pgid);
extern void sys_sync(void);
extern asmlinkage int sys_getsid(pid_t pid);
extern asmlinkage long sys_write (unsigned int fd, const char *buf, unsigned long count);
extern asmlinkage long sys_lseek (unsigned int fd, off_t offset, unsigned int origin);
extern asmlinkage int sys_getgroups(int gidsetsize, gid_t *grouplist);
extern asmlinkage int sys_setgroups(int gidsetsize, gid_t *grouplist);
extern int getrusage(struct task_struct *p, int who, struct rusage *ru);
extern char *prom_getenv(char *name);
extern long prom_setenv(char *name, char *value);
/* The syssgi commands supported thus far. */
#define SGI_SYSID 1 /* Return unique per-machine identifier. */
#define SGI_INVENT 5 /* Fetch inventory */
# define SGI_INV_SIZEOF 1
# define SGI_INV_READ 2
#define SGI_RDNAME 6 /* Return string name of a process. */
#define SGI_SETNVRAM 8 /* Set PROM variable. */
#define SGI_GETNVRAM 9 /* Get PROM variable. */
#define SGI_SETPGID 21 /* Set process group id. */
#define SGI_SYSCONF 22 /* POSIX sysconf garbage. */
#define SGI_PATHCONF 24 /* POSIX sysconf garbage. */
#define SGI_SETGROUPS 40 /* POSIX sysconf garbage. */
#define SGI_GETGROUPS 41 /* POSIX sysconf garbage. */
#define SGI_RUSAGE 56 /* BSD style rusage(). */
#define SGI_SSYNC 62 /* Synchronous fs sync. */
#define SGI_GETSID 65 /* SysVr4 get session id. */
#define SGI_ELFMAP 68 /* Map an elf image. */
#define SGI_TOSSTSAVE 108 /* Toss saved vma's. */
#define SGI_FP_BCOPY 129 /* Should FPU bcopy be used on this machine? */
#define SGI_PHYSP 1011 /* Translate virtual into physical page. */
asmlinkage int irix_syssgi(struct pt_regs *regs)
{
unsigned long cmd;
int retval, base = 0;
if (regs->regs[2] == 1000)
base = 1;
cmd = regs->regs[base + 4];
switch(cmd) {
case SGI_SYSID: {
char *buf = (char *) regs->regs[base + 5];
/* XXX Use ethernet addr.... */
retval = clear_user(buf, 64);
break;
}
#if 0
case SGI_RDNAME: {
int pid = (int) regs->regs[base + 5];
char *buf = (char *) regs->regs[base + 6];
struct task_struct *p;
char comm[16];
retval = verify_area(VERIFY_WRITE, buf, 16);
if (retval)
break;
read_lock(&tasklist_lock);
p = find_task_by_pid(pid);
if (!p) {
read_unlock(&tasklist_lock);
retval = -ESRCH;
break;
}
memcpy(comm, p->comm, 16);
read_unlock(&tasklist_lock);
/* XXX Need to check sizes. */
copy_to_user(buf, p->comm, 16);
retval = 0;
break;
}
case SGI_GETNVRAM: {
char *name = (char *) regs->regs[base+5];
char *buf = (char *) regs->regs[base+6];
char *value;
return -EINVAL; /* til I fix it */
retval = verify_area(VERIFY_WRITE, buf, 128);
if (retval)
break;
value = prom_getenv(name); /* PROM lock? */
if (!value) {
retval = -EINVAL;
break;
}
/* Do I strlen() for the length? */
copy_to_user(buf, value, 128);
retval = 0;
break;
}
case SGI_SETNVRAM: {
char *name = (char *) regs->regs[base+5];
char *value = (char *) regs->regs[base+6];
return -EINVAL; /* til I fix it */
retval = prom_setenv(name, value);
/* XXX make sure retval conforms to syssgi(2) */
printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
current->comm, current->pid, name, value, retval);
/* if (retval == PROM_ENOENT)
retval = -ENOENT; */
break;
}
#endif
case SGI_SETPGID: {
#ifdef DEBUG_PROCGRPS
printk("[%s:%d] setpgid(%d, %d) ",
current->comm, current->pid,
(int) regs->regs[base + 5], (int)regs->regs[base + 6]);
#endif
retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
#ifdef DEBUG_PROCGRPS
printk("retval=%d\n", retval);
#endif
}
case SGI_SYSCONF: {
switch(regs->regs[base + 5]) {
case 1:
retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
goto out;
case 2:
retval = max_threads;
goto out;
case 3:
retval = HZ;
goto out;
case 4:
retval = NGROUPS;
goto out;
case 5:
retval = NR_OPEN;
goto out;
case 6:
retval = 1;
goto out;
case 7:
retval = 1;
goto out;
case 8:
retval = 199009;
goto out;
case 11:
retval = PAGE_SIZE;
goto out;
case 12:
retval = 4;
goto out;
case 25:
case 26:
case 27:
case 28:
case 29:
case 30:
retval = 0;
goto out;
case 31:
retval = 32;
goto out;
default:
retval = -EINVAL;
goto out;
};
}
case SGI_SETGROUPS:
retval = sys_setgroups((int) regs->regs[base + 5],
(gid_t *) regs->regs[base + 6]);
break;
case SGI_GETGROUPS:
retval = sys_getgroups((int) regs->regs[base + 5],
(gid_t *) regs->regs[base + 6]);
break;
case SGI_RUSAGE: {
struct rusage *ru = (struct rusage *) regs->regs[base + 6];
switch((int) regs->regs[base + 5]) {
case 0:
/* rusage self */
retval = getrusage(current, RUSAGE_SELF, ru);
goto out;
case -1:
/* rusage children */
retval = getrusage(current, RUSAGE_CHILDREN, ru);
goto out;
default:
retval = -EINVAL;
goto out;
};
}
case SGI_SSYNC:
sys_sync();
retval = 0;
break;
case SGI_GETSID:
#ifdef DEBUG_PROCGRPS
printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
(int) regs->regs[base + 5]);
#endif
retval = sys_getsid(regs->regs[base + 5]);
#ifdef DEBUG_PROCGRPS
printk("retval=%d\n", retval);
#endif
break;
case SGI_ELFMAP:
retval = irix_mapelf((int) regs->regs[base + 5],
(struct elf_phdr *) regs->regs[base + 6],
(int) regs->regs[base + 7]);
break;
case SGI_TOSSTSAVE:
/* XXX We don't need to do anything? */
retval = 0;
break;
case SGI_FP_BCOPY:
retval = 0;
break;
case SGI_PHYSP: {
unsigned long addr = regs->regs[base + 5];
int *pageno = (int *) (regs->regs[base + 6]);
struct mm_struct *mm = current->mm;
pgd_t *pgdp;
pmd_t *pmdp;
pte_t *ptep;
retval = verify_area(VERIFY_WRITE, pageno, sizeof(int));
if (retval)
return retval;
down_read(&mm->mmap_sem);
pgdp = pgd_offset(mm, addr);
pmdp = pmd_offset(pgdp, addr);
ptep = pte_offset(pmdp, addr);
retval = -EINVAL;
if (ptep) {
pte_t pte = *ptep;
if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
retval = put_user((pte_val(pte) & PAGE_MASK) >>
PAGE_SHIFT, pageno);
}
}
up_read(&mm->mmap_sem);
break;
}
case SGI_INVENT: {
int arg1 = (int) regs->regs [base + 5];
void *buffer = (void *) regs->regs [base + 6];
int count = (int) regs->regs [base + 7];
switch (arg1) {
case SGI_INV_SIZEOF:
retval = sizeof (inventory_t);
break;
case SGI_INV_READ:
retval = dump_inventory_to_user (buffer, count);
break;
default:
retval = -EINVAL;
}
break;
}
default:
printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
retval = -EINVAL;
break;
};
out:
return retval;
}
asmlinkage int irix_gtime(struct pt_regs *regs)
{
return CURRENT_TIME;
}
int vm_enough_memory(long pages);
/*
* IRIX is completely broken... it returns 0 on success, otherwise
* ENOMEM.
*/
asmlinkage int irix_brk(unsigned long brk)
{
unsigned long rlim;
unsigned long newbrk, oldbrk;
struct mm_struct *mm = current->mm;
int ret;
down_write(&mm->mmap_sem);
if (brk < mm->end_code) {
ret = -ENOMEM;
goto out;
}
newbrk = PAGE_ALIGN(brk);
oldbrk = PAGE_ALIGN(mm->brk);
if (oldbrk == newbrk) {
mm->brk = brk;
ret = 0;
goto out;
}
/*
* Always allow shrinking brk
*/
if (brk <= mm->brk) {
mm->brk = brk;
do_munmap(mm, newbrk, oldbrk-newbrk);
ret = 0;
goto out;
}
/*
* Check against rlimit and stack..
*/
rlim = current->rlim[RLIMIT_DATA].rlim_cur;
if (rlim >= RLIM_INFINITY)
rlim = ~0;
if (brk - mm->end_code > rlim) {
ret = -ENOMEM;
goto out;
}
/*
* Check against existing mmap mappings.
*/
if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
ret = -ENOMEM;
goto out;
}
/*
* Check if we have enough memory..
*/
if (!vm_enough_memory((newbrk-oldbrk) >> PAGE_SHIFT)) {
ret = -ENOMEM;
goto out;
}
/*
* Ok, looks good - let it rip.
*/
mm->brk = brk;
do_brk(oldbrk, newbrk-oldbrk);
ret = 0;
out:
up_write(&mm->mmap_sem);
return ret;
}
asmlinkage int irix_getpid(struct pt_regs *regs)
{
regs->regs[3] = current->p_opptr->pid;
return current->pid;
}
asmlinkage int irix_getuid(struct pt_regs *regs)
{
regs->regs[3] = current->euid;
return current->uid;
}
asmlinkage int irix_getgid(struct pt_regs *regs)
{
regs->regs[3] = current->egid;
return current->gid;
}
extern rwlock_t xtime_lock;
asmlinkage int irix_stime(int value)
{
if (!capable(CAP_SYS_TIME))
return -EPERM;
write_lock_irq(&xtime_lock);
xtime.tv_sec = value;
xtime.tv_usec = 0;
time_maxerror = MAXPHASE;
time_esterror = MAXPHASE;
write_unlock_irq(&xtime_lock);
return 0;
}
extern int do_setitimer(int which, struct itimerval *value,
struct itimerval *ovalue);
static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
{
value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
value->tv_sec = jiffies / HZ;
}
static inline void getitimer_real(struct itimerval *value)
{
register unsigned long val, interval;
interval = current->it_real_incr;
val = 0;
if (del_timer(¤t->real_timer)) {
unsigned long now = jiffies;
val = current->real_timer.expires;
add_timer(¤t->real_timer);
/* look out for negative/zero itimer.. */
if (val <= now)
val = now+1;
val -= now;
}
jiffiestotv(val, &value->it_value);
jiffiestotv(interval, &value->it_interval);
}
asmlinkage unsigned int irix_alarm(unsigned int seconds)
{
struct itimerval it_new, it_old;
unsigned int oldalarm;
if (!seconds) {
getitimer_real(&it_old);
del_timer(¤t->real_timer);
} else {
it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
it_new.it_value.tv_sec = seconds;
it_new.it_value.tv_usec = 0;
do_setitimer(ITIMER_REAL, &it_new, &it_old);
}
oldalarm = it_old.it_value.tv_sec;
/*
* ehhh.. We can't return 0 if we have an alarm pending ...
* And we'd better return too much than too little anyway
*/
if (it_old.it_value.tv_usec)
oldalarm++;
return oldalarm;
}
asmlinkage int irix_pause(void)
{
current->state = TASK_INTERRUPTIBLE;
schedule();
return -EINTR;
}
extern asmlinkage long sys_mount(char * dev_name, char * dir_name, char * type,
unsigned long new_flags, void * data);
/* XXX need more than this... */
asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
char *type, void *data, int datalen)
{
printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
current->comm, current->pid,
dev_name, dir_name, flags, type, data, datalen);
return sys_mount(dev_name, dir_name, type, flags, data);
}
struct irix_statfs {
short f_type;
long f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
char f_fname[6], f_fpack[6];
};
asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
int len, int fs_type)
{
struct nameidata nd;
struct statfs kbuf;
int error, i;
/* We don't support this feature yet. */
if (fs_type) {
error = -EINVAL;
goto out;
}
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statfs));
if (error)
goto out;
error = user_path_walk(path, &nd);
if (error)
goto out;
error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
if (error)
goto dput_and_out;
__put_user(kbuf.f_type, &buf->f_type);
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
for (i = 0; i < 6; i++) {
__put_user(0, &buf->f_fname[i]);
__put_user(0, &buf->f_fpack[i]);
}
error = 0;
dput_and_out:
path_release(&nd);
out:
return error;
}
asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
{
struct statfs kbuf;
struct file *file;
int error, i;
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statfs));
if (error)
goto out;
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
}
error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
if (error)
goto out_f;
__put_user(kbuf.f_type, &buf->f_type);
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
for(i = 0; i < 6; i++) {
__put_user(0, &buf->f_fname[i]);
__put_user(0, &buf->f_fpack[i]);
}
out_f:
fput(file);
out:
return error;
}
extern asmlinkage int sys_setpgid(pid_t pid, pid_t pgid);
extern asmlinkage int sys_setsid(void);
asmlinkage int irix_setpgrp(int flags)
{
int error;
#ifdef DEBUG_PROCGRPS
printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
#endif
if(!flags)
error = current->pgrp;
else
error = sys_setsid();
#ifdef DEBUG_PROCGRPS
printk("returning %d\n", current->pgrp);
#endif
return error;
}
asmlinkage int irix_times(struct tms * tbuf)
{
int err = 0;
if (tbuf) {
err = verify_area(VERIFY_WRITE,tbuf,sizeof *tbuf);
if (err)
return err;
err |= __put_user(current->times.tms_utime,&tbuf->tms_utime);
err |= __put_user(current->times.tms_stime,&tbuf->tms_stime);
err |= __put_user(current->times.tms_cutime,&tbuf->tms_cutime);
err |= __put_user(current->times.tms_cstime,&tbuf->tms_cstime);
}
return err;
}
asmlinkage int irix_exec(struct pt_regs *regs)
{
int error, base = 0;
char *filename;
if(regs->regs[2] == 1000)
base = 1;
filename = getname((char *) (long)regs->regs[base + 4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
return error;
error = do_execve(filename, (char **) (long)regs->regs[base + 5],
(char **) 0, regs);
putname(filename);
return error;
}
asmlinkage int irix_exece(struct pt_regs *regs)
{
int error, base = 0;
char *filename;
if (regs->regs[2] == 1000)
base = 1;
filename = getname((char *) (long)regs->regs[base + 4]);
error = PTR_ERR(filename);
if (IS_ERR(filename))
return error;
error = do_execve(filename, (char **) (long)regs->regs[base + 5],
(char **) (long)regs->regs[base + 6], regs);
putname(filename);
return error;
}
asmlinkage unsigned long irix_gethostid(void)
{
printk("[%s:%d]: irix_gethostid() called...\n",
current->comm, current->pid);
return -EINVAL;
}
asmlinkage unsigned long irix_sethostid(unsigned long val)
{
printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
current->comm, current->pid, val);
return -EINVAL;
}
extern asmlinkage int sys_socket(int family, int type, int protocol);
asmlinkage int irix_socket(int family, int type, int protocol)
{
switch(type) {
case 1:
type = SOCK_DGRAM;
break;
case 2:
type = SOCK_STREAM;
break;
case 3:
type = 9; /* Invalid... */
break;
case 4:
type = SOCK_RAW;
break;
case 5:
type = SOCK_RDM;
break;
case 6:
type = SOCK_SEQPACKET;
break;
default:
break;
}
return sys_socket(family, type, protocol);
}
asmlinkage int irix_getdomainname(char *name, int len)
{
int error;
error = verify_area(VERIFY_WRITE, name, len);
if (error)
return error;
down_read(&uts_sem);
if(len > (__NEW_UTS_LEN - 1))
len = __NEW_UTS_LEN - 1;
error = 0;
if (copy_to_user(name, system_utsname.domainname, len))
error = -EFAULT;
up_read(&uts_sem);
return error;
}
asmlinkage unsigned long irix_getpagesize(void)
{
return PAGE_SIZE;
}
asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
unsigned long arg2, unsigned long arg3,
unsigned long arg4)
{
switch (opcode) {
case 0:
return sys_msgget((key_t) arg0, (int) arg1);
case 1:
return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
case 2:
return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
(size_t) arg2, (long) arg3, (int) arg4);
case 3:
return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
(size_t) arg2, (int) arg3);
default:
return -EINVAL;
}
}
asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
unsigned long arg2, unsigned long arg3)
{
switch (opcode) {
case 0:
return sys_shmat((int) arg0, (char *)arg1, (int) arg2,
(unsigned long *) arg3);
case 1:
return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
case 2:
return sys_shmdt((char *)arg0);
case 3:
return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
default:
return -EINVAL;
}
}
asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
unsigned long arg2, int arg3)
{
switch (opcode) {
case 0:
return sys_semctl((int) arg0, (int) arg1, (int) arg2,
(union semun) arg3);
case 1:
return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
case 2:
return sys_semop((int) arg0, (struct sembuf *)arg1,
(unsigned int) arg2);
default:
return -EINVAL;
}
}
static inline loff_t llseek(struct file *file, loff_t offset, int origin)
{
loff_t (*fn)(struct file *, loff_t, int);
loff_t retval;
fn = default_llseek;
if (file->f_op && file->f_op->llseek)
fn = file->f_op->llseek;
lock_kernel();
retval = fn(file, offset, origin);
unlock_kernel();
return retval;
}
asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
int origin)
{
int retval;
struct file * file;
loff_t offset;
retval = -EBADF;
file = fget(fd);
if (!file)
goto bad;
retval = -EINVAL;
if (origin > 2)
goto out_putf;
offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
retval = (int) offset;
out_putf:
fput(file);
bad:
return retval;
}
asmlinkage int irix_sginap(int ticks)
{
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(ticks);
return 0;
}
asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
{
return -EINVAL;
}
asmlinkage int irix_gettimeofday(struct timeval *tv)
{
int retval;
retval = copy_to_user(tv, &xtime, sizeof(*tv)) ? -EFAULT : 0;
return retval;
}
#define IRIX_MAP_AUTOGROW 0x40
asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
int flags, int fd, off_t offset)
{
struct file *file = NULL;
unsigned long retval;
if (!(flags & MAP_ANONYMOUS)) {
if (!(file = fget(fd)))
return -EBADF;
/* Ok, bad taste hack follows, try to think in something else
* when reading this. */
if (flags & IRIX_MAP_AUTOGROW) {
unsigned long old_pos;
long max_size = offset + len;
if (max_size > file->f_dentry->d_inode->i_size) {
old_pos = sys_lseek (fd, max_size - 1, 0);
sys_write (fd, "", 1);
sys_lseek (fd, old_pos, 0);
}
}
}
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
down_write(¤t->mm->mmap_sem);
retval = do_mmap(file, addr, len, prot, flags, offset);
up_write(¤t->mm->mmap_sem);
if (file)
fput(file);
return retval;
}
asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
{
printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
current->comm, current->pid, addr, len, behavior);
return -EINVAL;
}
asmlinkage int irix_pagelock(char *addr, int len, int op)
{
printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
current->comm, current->pid, addr, len, op);
return -EINVAL;
}
asmlinkage int irix_quotactl(struct pt_regs *regs)
{
printk("[%s:%d] Wheee.. irix_quotactl()\n",
current->comm, current->pid);
return -EINVAL;
}
asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
{
int error;
#ifdef DEBUG_PROCGRPS
printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
pid, pgrp);
#endif
if(!pid)
pid = current->pid;
/* Wheee, weird sysv thing... */
if ((pgrp == 0) && (pid == current->pid))
error = sys_setsid();
else
error = sys_setpgid(pid, pgrp);
#ifdef DEBUG_PROCGRPS
printk("error = %d\n", error);
#endif
return error;
}
asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
{
printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
current->comm, current->pid, cmd, buf, cnt);
return -EINVAL;
}
struct iuname {
char sysname[257], nodename[257], release[257];
char version[257], machine[257];
char m_type[257], base_rel[257];
char _unused0[257], _unused1[257], _unused2[257];
char _unused3[257], _unused4[257], _unused5[257];
};
asmlinkage int irix_uname(struct iuname *buf)
{
down_read(&uts_sem);
if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
|| copy_to_user(system_utsname.nodename, buf->nodename, 65)
|| copy_to_user(system_utsname.release, buf->release, 65)
|| copy_to_user(system_utsname.version, buf->version, 65)
|| copy_to_user(system_utsname.machine, buf->machine, 65)) {
return -EFAULT;
}
up_read(&uts_sem);
return 1;
}
#undef DEBUG_XSTAT
static inline u32
linux_to_irix_dev_t (dev_t t)
{
return MAJOR (t) << 18 | MINOR (t);
}
static inline int irix_xstat32_xlate(struct stat *kb, void *ubuf)
{
struct xstat32 {
u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
u32 st_rdev, st_pad2[2], st_size, st_pad3;
u32 st_atime0, st_atime1;
u32 st_mtime0, st_mtime1;
u32 st_ctime0, st_ctime1;
u32 st_blksize, st_blocks;
char st_fstype[16];
u32 st_pad4[8];
} ub;
ub.st_dev = linux_to_irix_dev_t (kb->st_dev);
ub.st_ino = kb->st_ino;
ub.st_mode = kb->st_mode;
ub.st_nlink = kb->st_nlink;
ub.st_uid = kb->st_uid;
ub.st_gid = kb->st_gid;
ub.st_rdev = linux_to_irix_dev_t (kb->st_rdev);
ub.st_size = kb->st_size;
ub.st_atime0 = kb->st_atime;
ub.st_atime1 = 0;
ub.st_mtime0 = kb->st_mtime;
ub.st_mtime1 = 0;
ub.st_ctime0 = kb->st_ctime;
ub.st_ctime1 = 0;
ub.st_blksize = kb->st_blksize;
ub.st_blocks = kb->st_blocks;
strcpy (ub.st_fstype, "efs");
return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
}
static inline void irix_xstat64_xlate(struct stat *sb)
{
struct xstat64 {
u32 st_dev; s32 st_pad1[3];
unsigned long long st_ino;
u32 st_mode;
u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
s32 st_pad2[2];
long long st_size;
s32 st_pad3;
struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
s32 st_blksize;
long long st_blocks;
char st_fstype[16];
s32 st_pad4[8];
} ks;
ks.st_dev = linux_to_irix_dev_t (sb->st_dev);
ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
ks.st_ino = (unsigned long long) sb->st_ino;
ks.st_mode = (u32) sb->st_mode;
ks.st_nlink = (u32) sb->st_nlink;
ks.st_uid = (s32) sb->st_uid;
ks.st_gid = (s32) sb->st_gid;
ks.st_rdev = linux_to_irix_dev_t (sb->st_rdev);
ks.st_pad2[0] = ks.st_pad2[1] = 0;
ks.st_size = (long long) sb->st_size;
ks.st_pad3 = 0;
/* XXX hackety hack... */
ks.st_atime.tv_sec = (s32) sb->st_atime; ks.st_atime.tv_nsec = 0;
ks.st_mtime.tv_sec = (s32) sb->st_atime; ks.st_mtime.tv_nsec = 0;
ks.st_ctime.tv_sec = (s32) sb->st_atime; ks.st_ctime.tv_nsec = 0;
ks.st_blksize = (s32) sb->st_blksize;
ks.st_blocks = (long long) sb->st_blocks;
memset(ks.st_fstype, 0, 16);
ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
/* Now write it all back. */
copy_to_user(sb, &ks, sizeof(struct xstat64));
}
extern asmlinkage int sys_newstat(char * filename, struct stat * statbuf);
asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
{
int retval;
#ifdef DEBUG_XSTAT
printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
current->comm, current->pid, version, filename, statbuf);
#endif
switch(version) {
case 2: {
struct stat kb;
mm_segment_t old_fs;
old_fs = get_fs(); set_fs(get_ds());
retval = sys_newstat(filename, &kb);
set_fs(old_fs);
#ifdef DEBUG_XSTAT
printk("retval[%d]\n", retval);
#endif
if(retval)
goto out;
retval = irix_xstat32_xlate(&kb, statbuf);
goto out;
}
case 3: {
retval = sys_newstat(filename, statbuf);
#ifdef DEBUG_XSTAT
printk("retval[%d]\n", retval);
#endif
if(retval)
goto out;
irix_xstat64_xlate(statbuf);
retval = 0;
break;
}
default:
retval = -EINVAL;
break;
}
out:
return retval;
}
extern asmlinkage int sys_newlstat(char * filename, struct stat * statbuf);
asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
{
int error;
#ifdef DEBUG_XSTAT
printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
current->comm, current->pid, version, filename, statbuf);
#endif
switch(version) {
case 2: {
struct stat kb;
mm_segment_t old_fs;
old_fs = get_fs(); set_fs(get_ds());
error = sys_newlstat(filename, &kb);
set_fs(old_fs);
#ifdef DEBUG_XSTAT
printk("error[%d]\n", error);
#endif
if(error)
goto out;
error = irix_xstat32_xlate(&kb, statbuf);
goto out;
}
case 3: {
error = sys_newlstat(filename, statbuf);
#ifdef DEBUG_XSTAT
printk("error[%d]\n", error);
#endif
if(error)
goto out;
irix_xstat64_xlate(statbuf);
error = 0;
goto out;
}
default:
error = -EINVAL;
goto out;
}
out:
return error;
}
extern asmlinkage int sys_newfstat(unsigned int fd, struct stat * statbuf);
asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
{
int error;
#ifdef DEBUG_XSTAT
printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
current->comm, current->pid, version, fd, statbuf);
#endif
switch(version) {
case 2: {
struct stat kb;
mm_segment_t old_fs;
old_fs = get_fs(); set_fs(get_ds());
error = sys_newfstat(fd, &kb);
set_fs(old_fs);
#ifdef DEBUG_XSTAT
printk("error[%d]\n", error);
#endif
if(error)
goto out;
error = irix_xstat32_xlate(&kb, statbuf);
goto out;
}
case 3: {
error = sys_newfstat(fd, statbuf);
#ifdef DEBUG_XSTAT
printk("error[%d]\n", error);
#endif
if(error)
goto out;
irix_xstat64_xlate(statbuf);
error = 0;
goto out;
}
default:
error = -EINVAL;
goto out;
}
out:
return error;
}
extern asmlinkage int sys_mknod(const char * filename, int mode, dev_t dev);
asmlinkage int irix_xmknod(int ver, char *filename, int mode, dev_t dev)
{
int retval;
printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
current->comm, current->pid, ver, filename, mode, (int) dev);
switch(ver) {
case 2:
retval = sys_mknod(filename, mode, dev);
break;
default:
retval = -EINVAL;
break;
};
return retval;
}
asmlinkage int irix_swapctl(int cmd, char *arg)
{
printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
current->comm, current->pid, cmd, arg);
return -EINVAL;
}
struct irix_statvfs {
u32 f_bsize; u32 f_frsize; u32 f_blocks;
u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
u32 f_fsid; char f_basetype[16];
u32 f_flag; u32 f_namemax;
char f_fstr[32]; u32 f_filler[16];
};
asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
{
struct nameidata nd;
struct statfs kbuf;
int error, i;
printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
current->comm, current->pid, fname, buf);
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statvfs));
if (error)
goto out;
error = user_path_walk(fname, &nd);
if (error)
goto out;
error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
if (error)
goto dput_and_out;
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
__put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for (i = 0; i < 16; i++)
__put_user(0, &buf->f_basetype[i]);
__put_user(0, &buf->f_flag);
__put_user(kbuf.f_namelen, &buf->f_namemax);
for (i = 0; i < 32; i++)
__put_user(0, &buf->f_fstr[i]);
error = 0;
dput_and_out:
path_release(&nd);
out:
return error;
}
asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
{
struct statfs kbuf;
struct file *file;
int error, i;
printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
current->comm, current->pid, fd, buf);
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statvfs));
if (error)
goto out;
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
}
error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
if (error)
goto out_f;
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
__put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
__put_user(0, &buf->f_basetype[i]);
__put_user(0, &buf->f_flag);
__put_user(kbuf.f_namelen, &buf->f_namemax);
__clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
out_f:
fput(file);
out:
return error;
}
asmlinkage int irix_priocntl(struct pt_regs *regs)
{
printk("[%s:%d] Wheee.. irix_priocntl()\n",
current->comm, current->pid);
return -EINVAL;
}
asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
{
printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
current->comm, current->pid, pid, sig, code, val);
return -EINVAL;
}
extern asmlinkage int sys_truncate(const char * path, unsigned long length);
extern asmlinkage int sys_ftruncate(unsigned int fd, unsigned long length);
asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
{
int retval;
if (size1) {
retval = -EINVAL;
goto out;
}
retval = sys_truncate(name, size2);
out:
return retval;
}
asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
{
int retval;
if (size1) {
retval = -EINVAL;
goto out;
}
retval = sys_ftruncate(fd, size2);
out:
return retval;
}
extern asmlinkage unsigned long
sys_mmap(unsigned long addr, size_t len, int prot, int flags, int fd,
off_t offset);
asmlinkage int irix_mmap64(struct pt_regs *regs)
{
int len, prot, flags, fd, off1, off2, error, base = 0;
unsigned long addr, pgoff, *sp;
struct file *file = NULL;
if (regs->regs[2] == 1000)
base = 1;
sp = (unsigned long *) (regs->regs[29] + 16);
addr = regs->regs[base + 4];
len = regs->regs[base + 5];
prot = regs->regs[base + 6];
if (!base) {
flags = regs->regs[base + 7];
error = verify_area(VERIFY_READ, sp, (4 * sizeof(unsigned long)));
if(error)
goto out;
fd = sp[0];
__get_user(off1, &sp[1]);
__get_user(off2, &sp[2]);
} else {
error = verify_area(VERIFY_READ, sp, (5 * sizeof(unsigned long)));
if(error)
goto out;
__get_user(flags, &sp[0]);
__get_user(fd, &sp[1]);
__get_user(off1, &sp[2]);
__get_user(off2, &sp[3]);
}
if (off1 & PAGE_MASK) {
error = -EOVERFLOW;
goto out;
}
pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
if (!(flags & MAP_ANONYMOUS)) {
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
}
/* Ok, bad taste hack follows, try to think in something else
when reading this */
if (flags & IRIX_MAP_AUTOGROW) {
unsigned long old_pos;
long max_size = off2 + len;
if (max_size > file->f_dentry->d_inode->i_size) {
old_pos = sys_lseek (fd, max_size - 1, 0);
sys_write (fd, "", 1);
sys_lseek (fd, old_pos, 0);
}
}
}
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
down_write(¤t->mm->mmap_sem);
error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
up_write(¤t->mm->mmap_sem);
if (file)
fput(file);
out:
return error;
}
asmlinkage int irix_dmi(struct pt_regs *regs)
{
printk("[%s:%d] Wheee.. irix_dmi()\n",
current->comm, current->pid);
return -EINVAL;
}
asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
int off1, int off2)
{
printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
return -EINVAL;
}
asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
int off1, int off2)
{
printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
return -EINVAL;
}
asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5)
{
printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
"%08lx,%08lx)\n",
current->comm, current->pid, cmd, arg0, arg1, arg2,
arg3, arg4, arg5);
return -EINVAL;
}
struct irix_statvfs64 {
u32 f_bsize; u32 f_frsize;
u64 f_blocks; u64 f_bfree; u64 f_bavail;
u64 f_files; u64 f_ffree; u64 f_favail;
u32 f_fsid;
char f_basetype[16];
u32 f_flag; u32 f_namemax;
char f_fstr[32];
u32 f_filler[16];
};
asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
{
struct nameidata nd;
struct statfs kbuf;
int error, i;
printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
current->comm, current->pid, fname, buf);
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statvfs));
if(error)
goto out;
error = user_path_walk(fname, &nd);
if (error)
goto out;
error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
if (error)
goto dput_and_out;
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
__put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
__put_user(0, &buf->f_basetype[i]);
__put_user(0, &buf->f_flag);
__put_user(kbuf.f_namelen, &buf->f_namemax);
for(i = 0; i < 32; i++)
__put_user(0, &buf->f_fstr[i]);
error = 0;
dput_and_out:
path_release(&nd);
out:
return error;
}
asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
{
struct statfs kbuf;
struct file *file;
int error, i;
printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
current->comm, current->pid, fd, buf);
error = verify_area(VERIFY_WRITE, buf, sizeof(struct irix_statvfs));
if (error)
goto out;
if (!(file = fget(fd))) {
error = -EBADF;
goto out;
}
error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
if (error)
goto out_f;
__put_user(kbuf.f_bsize, &buf->f_bsize);
__put_user(kbuf.f_frsize, &buf->f_frsize);
__put_user(kbuf.f_blocks, &buf->f_blocks);
__put_user(kbuf.f_bfree, &buf->f_bfree);
__put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
__put_user(kbuf.f_files, &buf->f_files);
__put_user(kbuf.f_ffree, &buf->f_ffree);
__put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
#ifdef __MIPSEB__
__put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
#else
__put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
#endif
for(i = 0; i < 16; i++)
__put_user(0, &buf->f_basetype[i]);
__put_user(0, &buf->f_flag);
__put_user(kbuf.f_namelen, &buf->f_namemax);
__clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
out_f:
fput(file);
out:
return error;
}
asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
{
int err;
printk("[%s:%d] irix_getmountid(%s, %p)\n",
current->comm, current->pid, fname, midbuf);
err = verify_area(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4));
if (err)
return err;
/*
* The idea with this system call is that when trying to determine
* 'pwd' and it's a toss-up for some reason, userland can use the
* fsid of the filesystem to try and make the right decision, but
* we don't have this so for now. XXX
*/
err |= __put_user(0, &midbuf[0]);
err |= __put_user(0, &midbuf[1]);
err |= __put_user(0, &midbuf[2]);
err |= __put_user(0, &midbuf[3]);
return err;
}
asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
unsigned long arg, unsigned long sp, int slen)
{
printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
current->comm, current->pid, entry, mask, arg, sp, slen);
return -EINVAL;
}
#undef DEBUG_GETDENTS
struct irix_dirent32 {
u32 d_ino;
u32 d_off;
unsigned short d_reclen;
char d_name[1];
};
struct irix_dirent32_callback {
struct irix_dirent32 *current_dir;
struct irix_dirent32 *previous;
int count;
int error;
};
#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
static int irix_filldir32(void *__buf, const char *name, int namlen,
loff_t offset, ino_t ino, unsigned int d_type)
{
struct irix_dirent32 *dirent;
struct irix_dirent32_callback *buf =
(struct irix_dirent32_callback *)__buf;
unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
#ifdef DEBUG_GETDENTS
printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
reclen, namlen, buf->count);
#endif
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->current_dir;
buf->previous = dirent;
__put_user(ino, &dirent->d_ino);
__put_user(reclen, &dirent->d_reclen);
copy_to_user(dirent->d_name, name, namlen);
__put_user(0, &dirent->d_name[namlen]);
((char *) dirent) += reclen;
buf->current_dir = dirent;
buf->count -= reclen;
return 0;
}
asmlinkage int irix_ngetdents(unsigned int fd, void * dirent, unsigned int count, int *eob)
{
struct file *file;
struct irix_dirent32 *lastdirent;
struct irix_dirent32_callback buf;
int error;
#ifdef DEBUG_GETDENTS
printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
current->pid, fd, dirent, count, eob);
#endif
error = -EBADF;
file = fget(fd);
if (!file)
goto out;
buf.current_dir = (struct irix_dirent32 *) dirent;
buf.previous = NULL;
buf.count = count;
buf.error = 0;
error = vfs_readdir(file, irix_filldir32, &buf);
if (error < 0)
goto out_putf;
error = buf.error;
lastdirent = buf.previous;
if (lastdirent) {
put_user(file->f_pos, &lastdirent->d_off);
error = count - buf.count;
}
if (put_user(0, eob) < 0) {
error = EFAULT;
goto out_putf;
}
#ifdef DEBUG_GETDENTS
printk("eob=%d returning %d\n", *eob, count - buf.count);
#endif
error = count - buf.count;
out_putf:
fput(file);
out:
return error;
}
struct irix_dirent64 {
u64 d_ino;
u64 d_off;
unsigned short d_reclen;
char d_name[1];
};
struct irix_dirent64_callback {
struct irix_dirent64 *curr;
struct irix_dirent64 *previous;
int count;
int error;
};
#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
static int irix_filldir64(void * __buf, const char * name, int namlen,
loff_t offset, ino_t ino, unsigned int d_type)
{
struct irix_dirent64 *dirent;
struct irix_dirent64_callback * buf =
(struct irix_dirent64_callback *) __buf;
unsigned short reclen = ROUND_UP64(NAME_OFFSET64(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(reclen, &dirent->d_reclen);
__copy_to_user(dirent->d_name, name, namlen);
__put_user(0, &dirent->d_name[namlen]);
((char *) dirent) += reclen;
buf->curr = dirent;
buf->count -= reclen;
return 0;
}
asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
{
struct file *file;
struct irix_dirent64 *lastdirent;
struct irix_dirent64_callback buf;
int error;
#ifdef DEBUG_GETDENTS
printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
current->pid, fd, dirent, cnt);
#endif
error = -EBADF;
if (!(file = fget(fd)))
goto out;
error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, cnt))
goto out_f;
error = -EINVAL;
if (cnt < (sizeof(struct irix_dirent64) + 255))
goto out_f;
buf.curr = (struct irix_dirent64 *) dirent;
buf.previous = NULL;
buf.count = cnt;
buf.error = 0;
error = vfs_readdir(file, irix_filldir64, &buf);
if (error < 0)
goto out_f;
lastdirent = buf.previous;
if (!lastdirent) {
error = buf.error;
goto out_f;
}
lastdirent->d_off = (u64) file->f_pos;
#ifdef DEBUG_GETDENTS
printk("returning %d\n", cnt - buf.count);
#endif
error = cnt - buf.count;
out_f:
fput(file);
out:
return error;
}
asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
{
struct file *file;
struct irix_dirent64 *lastdirent;
struct irix_dirent64_callback buf;
int error;
#ifdef DEBUG_GETDENTS
printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
current->pid, fd, dirent, cnt);
#endif
error = -EBADF;
if (!(file = fget(fd)))
goto out;
error = -EFAULT;
if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
!access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
goto out_f;
error = -EINVAL;
if (cnt < (sizeof(struct irix_dirent64) + 255))
goto out_f;
*eob = 0;
buf.curr = (struct irix_dirent64 *) dirent;
buf.previous = NULL;
buf.count = cnt;
buf.error = 0;
error = vfs_readdir(file, irix_filldir64, &buf);
if (error < 0)
goto out_f;
lastdirent = buf.previous;
if (!lastdirent) {
error = buf.error;
goto out_f;
}
lastdirent->d_off = (u64) file->f_pos;
#ifdef DEBUG_GETDENTS
printk("eob=%d returning %d\n", *eob, cnt - buf.count);
#endif
error = cnt - buf.count;
out_f:
fput(file);
out:
return error;
}
asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
{
int retval;
switch (op) {
case 1:
/* Reboot */
printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 2:
/* Shutdown */
printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 4:
/* Remount-root */
printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 8:
/* Kill all tasks. */
printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 256:
/* Set magic mushrooms... */
printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
current->comm, current->pid, (int) func);
retval = -EINVAL;
goto out;
default:
printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
current->comm, current->pid, (int) op);
retval = -EINVAL;
goto out;
};
out:
return retval;
}
asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
{
int retval;
switch(type) {
case 0:
/* uname() */
retval = irix_uname((struct iuname *)inbuf);
goto out;
case 2:
/* ustat() */
printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 3:
/* fusers() */
printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
default:
printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
current->comm, current->pid, (int) type);
retval = -EINVAL;
goto out;
}
out:
return retval;
}
#undef DEBUG_FCNTL
extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd,
unsigned long arg);
#define IRIX_F_ALLOCSP 10
asmlinkage int irix_fcntl(int fd, int cmd, int arg)
{
int retval;
#ifdef DEBUG_FCNTL
printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
current->pid, fd, cmd, arg);
#endif
if (cmd == IRIX_F_ALLOCSP){
return 0;
}
retval = sys_fcntl(fd, cmd, arg);
#ifdef DEBUG_FCNTL
printk("%d\n", retval);
#endif
return retval;
}
asmlinkage int irix_ulimit(int cmd, int arg)
{
int retval;
switch(cmd) {
case 1:
printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 2:
printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 3:
printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
case 4:
#if 0
printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
#endif
retval = current->rlim[RLIMIT_NOFILE].rlim_cur;
goto out;
case 5:
printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
current->comm, current->pid);
retval = -EINVAL;
goto out;
default:
printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
current->comm, current->pid, cmd);
retval = -EINVAL;
goto out;
}
out:
return retval;
}
asmlinkage int irix_unimp(struct pt_regs *regs)
{
printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
"a3=%08lx\n", current->comm, current->pid,
(int) regs->regs[2], (int) regs->regs[3],
regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
return -ENOSYS;
}
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