summaryrefslogtreecommitdiff
path: root/arch/mips/kernel/sysirix.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/kernel/sysirix.c')
-rw-r--r--arch/mips/kernel/sysirix.c2179
1 files changed, 2179 insertions, 0 deletions
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
new file mode 100644
index 000000000000..f3bf0e43b8bb
--- /dev/null
+++ b/arch/mips/kernel/sysirix.c
@@ -0,0 +1,2179 @@
+/*
+ * 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/binfmts.h>
+#include <linux/highuid.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/time.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 <linux/vfs.h>
+#include <linux/namei.h>
+#include <linux/socket.h>
+#include <linux/security.h>
+#include <linux/syscalls.h>
+
+#include <asm/ptrace.h>
+#include <asm/page.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 = num_online_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)) {
+ task_lock(current->group_leader);
+ current->signal->rlim[RLIMIT_STACK].rlim_max =
+ current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
+ task_unlock(current->group_leader);
+ error = value;
+ break;
+ }
+ task_lock(current->group_leader);
+ if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
+ error = -EINVAL;
+ task_unlock(current->group_leader);
+ break;
+ }
+ current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
+ task_unlock(current->group_leader);
+ error = value;
+ break;
+ }
+
+ case PR_GETSTACKSIZE:
+ printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
+ current->comm, current->pid);
+ error = current->signal->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 int getrusage(struct task_struct *p, int who, struct rusage __user *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 tcomm[sizeof(current->comm)];
+
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(tcomm))) {
+ retval = -EFAULT;
+ break;
+ }
+ read_lock(&tasklist_lock);
+ p = find_task_by_pid(pid);
+ if (!p) {
+ read_unlock(&tasklist_lock);
+ retval = -ESRCH;
+ break;
+ }
+ get_task_comm(tcomm, p);
+ read_unlock(&tasklist_lock);
+
+ /* XXX Need to check sizes. */
+ copy_to_user(buf, tcomm, sizeof(tcomm));
+ 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 */
+ if (!access_ok(VERIFY_WRITE, buf, 128)) {
+ retval = -EFAULT;
+ 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_MAX;
+ 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;
+
+ if (!access_ok(VERIFY_WRITE, pageno, sizeof(int)))
+ return -EFAULT;
+
+ 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 get_seconds();
+}
+
+/*
+ * 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->signal->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 (security_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->real_parent->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;
+}
+
+asmlinkage int irix_stime(int value)
+{
+ int err;
+ struct timespec tv;
+
+ tv.tv_sec = value;
+ tv.tv_nsec = 0;
+ err = security_settime(&tv, NULL);
+ if (err)
+ return err;
+
+ write_seqlock_irq(&xtime_lock);
+ xtime.tv_sec = value;
+ xtime.tv_nsec = 0;
+ time_adjust = 0; /* stop active adjtime() */
+ time_status |= STA_UNSYNC;
+ time_maxerror = NTP_PHASE_LIMIT;
+ time_esterror = NTP_PHASE_LIMIT;
+ write_sequnlock_irq(&xtime_lock);
+
+ return 0;
+}
+
+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(&current->real_timer)) {
+ unsigned long now = jiffies;
+ val = current->real_timer.expires;
+ add_timer(&current->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(&current->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;
+}
+
+/* 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 kstatfs kbuf;
+ int error, i;
+
+ /* We don't support this feature yet. */
+ if (fs_type) {
+ error = -EINVAL;
+ goto out;
+ }
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
+ error = -EFAULT;
+ 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 kstatfs kbuf;
+ struct file *file;
+ int error, i;
+
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
+ error = -EFAULT;
+ 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;
+}
+
+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 = process_group(current);
+ else
+ error = sys_setsid();
+#ifdef DEBUG_PROCGRPS
+ printk("returning %d\n", process_group(current));
+#endif
+
+ return error;
+}
+
+asmlinkage int irix_times(struct tms * tbuf)
+{
+ int err = 0;
+
+ if (tbuf) {
+ if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
+ return -EFAULT;
+ err |= __put_user(current->utime, &tbuf->tms_utime);
+ err |= __put_user(current->stime, &tbuf->tms_stime);
+ err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
+ err |= __put_user(current->signal->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;
+}
+
+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;
+
+ if (!access_ok(VERIFY_WRITE, name, len))
+ return -EFAULT;
+
+ down_read(&uts_sem);
+ if (len > __NEW_UTS_LEN)
+ len = __NEW_UTS_LEN;
+ 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 do_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)
+{
+ time_t sec;
+ long nsec, seq;
+ int err;
+
+ if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
+ return -EFAULT;
+
+ do {
+ seq = read_seqbegin(&xtime_lock);
+ sec = xtime.tv_sec;
+ nsec = xtime.tv_nsec;
+ } while (read_seqretry(&xtime_lock, seq));
+
+ err = __put_user(sec, &tv->tv_sec);
+ err |= __put_user((nsec / 1000), &tv->tv_usec);
+
+ return err;
+}
+
+#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(&current->mm->mmap_sem);
+ retval = do_mmap(file, addr, len, prot, flags, offset);
+ up_write(&current->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 int irix_xstat32_xlate(struct kstat *stat, 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;
+
+ if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
+ return -EOVERFLOW;
+ ub.st_dev = sysv_encode_dev(stat->dev);
+ ub.st_ino = stat->ino;
+ ub.st_mode = stat->mode;
+ ub.st_nlink = stat->nlink;
+ SET_UID(ub.st_uid, stat->uid);
+ SET_GID(ub.st_gid, stat->gid);
+ ub.st_rdev = sysv_encode_dev(stat->rdev);
+#if BITS_PER_LONG == 32
+ if (stat->size > MAX_NON_LFS)
+ return -EOVERFLOW;
+#endif
+ ub.st_size = stat->size;
+ ub.st_atime0 = stat->atime.tv_sec;
+ ub.st_atime1 = stat->atime.tv_nsec;
+ ub.st_mtime0 = stat->mtime.tv_sec;
+ ub.st_mtime1 = stat->atime.tv_nsec;
+ ub.st_ctime0 = stat->ctime.tv_sec;
+ ub.st_ctime1 = stat->atime.tv_nsec;
+ ub.st_blksize = stat->blksize;
+ ub.st_blocks = stat->blocks;
+ strcpy (ub.st_fstype, "efs");
+
+ return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
+}
+
+static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
+{
+ 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;
+
+ if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
+ return -EOVERFLOW;
+
+ ks.st_dev = sysv_encode_dev(stat->dev);
+ ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
+ ks.st_ino = (unsigned long long) stat->ino;
+ ks.st_mode = (u32) stat->mode;
+ ks.st_nlink = (u32) stat->nlink;
+ ks.st_uid = (s32) stat->uid;
+ ks.st_gid = (s32) stat->gid;
+ ks.st_rdev = sysv_encode_dev (stat->rdev);
+ ks.st_pad2[0] = ks.st_pad2[1] = 0;
+ ks.st_size = (long long) stat->size;
+ ks.st_pad3 = 0;
+
+ /* XXX hackety hack... */
+ ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
+ ks.st_atime.tv_nsec = stat->atime.tv_nsec;
+ ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
+ ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
+ ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
+ ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
+
+ ks.st_blksize = (s32) stat->blksize;
+ ks.st_blocks = (long long) stat->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. */
+ return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
+}
+
+asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
+{
+ int retval;
+ struct kstat stat;
+
+#ifdef DEBUG_XSTAT
+ printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
+ current->comm, current->pid, version, filename, statbuf);
+#endif
+
+ retval = vfs_stat(filename, &stat);
+ if (!retval) {
+ switch(version) {
+ case 2:
+ retval = irix_xstat32_xlate(&stat, statbuf);
+ break;
+ case 3:
+ retval = irix_xstat64_xlate(&stat, statbuf);
+ break;
+ default:
+ retval = -EINVAL;
+ }
+ }
+ return retval;
+}
+
+asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
+{
+ int error;
+ struct kstat stat;
+
+#ifdef DEBUG_XSTAT
+ printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
+ current->comm, current->pid, version, filename, statbuf);
+#endif
+
+ error = vfs_lstat(filename, &stat);
+
+ if (!error) {
+ switch (version) {
+ case 2:
+ error = irix_xstat32_xlate(&stat, statbuf);
+ break;
+ case 3:
+ error = irix_xstat64_xlate(&stat, statbuf);
+ break;
+ default:
+ error = -EINVAL;
+ }
+ }
+ return error;
+}
+
+asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
+{
+ int error;
+ struct kstat stat;
+
+#ifdef DEBUG_XSTAT
+ printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
+ current->comm, current->pid, version, fd, statbuf);
+#endif
+
+ error = vfs_fstat(fd, &stat);
+ if (!error) {
+ switch (version) {
+ case 2:
+ error = irix_xstat32_xlate(&stat, statbuf);
+ break;
+ case 3:
+ error = irix_xstat64_xlate(&stat, statbuf);
+ break;
+ default:
+ error = -EINVAL;
+ }
+ }
+ return error;
+}
+
+asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
+{
+ int retval;
+ printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
+ current->comm, current->pid, ver, filename, mode, dev);
+
+ switch(ver) {
+ case 2:
+ /* shouldn't we convert here as well as on stat()? */
+ 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 kstatfs kbuf;
+ int error, i;
+
+ printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
+ current->comm, current->pid, fname, buf);
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
+ error = -EFAULT;
+ 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 kstatfs kbuf;
+ struct file *file;
+ int error, i;
+
+ printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
+ current->comm, current->pid, fd, buf);
+
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
+ error = -EFAULT;
+ 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;
+}
+
+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;
+}
+
+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];
+ if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
+ error = -EFAULT;
+ goto out;
+ }
+ fd = sp[0];
+ __get_user(off1, &sp[1]);
+ __get_user(off2, &sp[2]);
+ } else {
+ if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
+ error = -EFAULT;
+ 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(&current->mm->mmap_sem);
+ error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
+ up_write(&current->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 kstatfs kbuf;
+ int error, i;
+
+ printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
+ current->comm, current->pid, fname, buf);
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
+ error = -EFAULT;
+ 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 kstatfs kbuf;
+ struct file *file;
+ int error, i;
+
+ printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
+ current->comm, current->pid, fd, buf);
+
+ if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
+ error = -EFAULT;
+ 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 = 0;
+
+ printk("[%s:%d] irix_getmountid(%s, %p)\n",
+ current->comm, current->pid, fname, midbuf);
+ if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
+ return -EFAULT;
+
+ /*
+ * 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
+
+#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->signal->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;
+}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-19 12:00:16 +0000