diff options
Diffstat (limited to 'arch/mips/kernel/sysirix.c')
| -rw-r--r-- | arch/mips/kernel/sysirix.c | 2179 |
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(¤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; +} + +/* 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(¤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 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(¤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 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; +} |
