/* $Id: sys_sunos32.c,v 1.61 2001/08/13 14:40:07 davem Exp $ * sys_sunos32.c: SunOS binary compatability layer on sparc64. * * Copyright (C) 1995, 1996, 1997 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) * * Based upon preliminary work which is: * * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* for gethostid() */ #include #include /* For the nfs mount emulation */ #include #include #include #include #include /* for sunos_select */ #include #include /* Use this to get at 32-bit user passed pointers. */ #define A(__x) \ ({ unsigned long __ret; \ __asm__ ("srl %0, 0, %0" \ : "=r" (__ret) \ : "0" (__x)); \ __ret; \ }) #define SUNOS_NR_OPEN 256 asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 off) { struct file *file = NULL; unsigned long retval, ret_type; if(flags & MAP_NORESERVE) { static int cnt; if (cnt++ < 10) printk("%s: unimplemented SunOS MAP_NORESERVE mmap() flag\n", current->comm); flags &= ~MAP_NORESERVE; } retval = -EBADF; if(!(flags & MAP_ANONYMOUS)) { struct inode * inode; if(fd >= SUNOS_NR_OPEN) goto out; file = fget(fd); if (!file) goto out; inode = file->f_dentry->d_inode; if(MAJOR(inode->i_rdev)==MEM_MAJOR && MINOR(inode->i_rdev)==5) { flags |= MAP_ANONYMOUS; fput(file); file = NULL; } } retval = -EINVAL; if(!(flags & MAP_FIXED)) addr = 0; else if (len > 0xf0000000 || addr > 0xf0000000 - len) goto out_putf; ret_type = flags & _MAP_NEW; flags &= ~_MAP_NEW; flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); down_write(¤t->mm->mmap_sem); retval = do_mmap(file, (unsigned long) addr, (unsigned long) len, (unsigned long) prot, (unsigned long) flags, (unsigned long) off); up_write(¤t->mm->mmap_sem); if(!ret_type) retval = ((retval < 0xf0000000) ? 0 : retval); out_putf: if (file) fput(file); out: return (u32) retval; } asmlinkage int sunos_mctl(u32 addr, u32 len, int function, u32 arg) { return 0; } asmlinkage int sunos_brk(u32 baddr) { int freepages, retval = -ENOMEM; unsigned long rlim; unsigned long newbrk, oldbrk, brk = (unsigned long) baddr; down_write(¤t->mm->mmap_sem); if (brk < current->mm->end_code) goto out; newbrk = PAGE_ALIGN(brk); oldbrk = PAGE_ALIGN(current->mm->brk); retval = 0; if (oldbrk == newbrk) { current->mm->brk = brk; goto out; } /* Always allow shrinking brk. */ if (brk <= current->mm->brk) { current->mm->brk = brk; do_munmap(current->mm, newbrk, oldbrk-newbrk); goto out; } /* Check against rlimit and stack.. */ retval = -ENOMEM; rlim = current->rlim[RLIMIT_DATA].rlim_cur; if (rlim >= RLIM_INFINITY) rlim = ~0; if (brk - current->mm->end_code > rlim) goto out; /* Check against existing mmap mappings. */ if (find_vma_intersection(current->mm, oldbrk, newbrk+PAGE_SIZE)) goto out; /* stupid algorithm to decide if we have enough memory: while * simple, it hopefully works in most obvious cases.. Easy to * fool it, but this should catch most mistakes. */ freepages = atomic_read(&buffermem_pages) >> PAGE_SHIFT; freepages += atomic_read(&page_cache_size); freepages >>= 1; freepages += nr_free_pages(); freepages += nr_swap_pages; freepages -= num_physpages >> 4; freepages -= (newbrk-oldbrk) >> PAGE_SHIFT; if (freepages < 0) goto out; /* Ok, we have probably got enough memory - let it rip. */ current->mm->brk = brk; do_brk(oldbrk, newbrk-oldbrk); retval = 0; out: up_write(¤t->mm->mmap_sem); return retval; } asmlinkage u32 sunos_sbrk(int increment) { int error, oldbrk; /* This should do it hopefully... */ oldbrk = (int)current->mm->brk; error = sunos_brk(((int) current->mm->brk) + increment); if(!error) error = oldbrk; return error; } asmlinkage u32 sunos_sstk(int increment) { printk("%s: Call to sunos_sstk(increment<%d>) is unsupported\n", current->comm, increment); return (u32)-1; } /* Give hints to the kernel as to what paging strategy to use... * Completely bogus, don't remind me. */ #define VA_NORMAL 0 /* Normal vm usage expected */ #define VA_ABNORMAL 1 /* Abnormal/random vm usage probable */ #define VA_SEQUENTIAL 2 /* Accesses will be of a sequential nature */ #define VA_INVALIDATE 3 /* Page table entries should be flushed ??? */ static char *vstrings[] = { "VA_NORMAL", "VA_ABNORMAL", "VA_SEQUENTIAL", "VA_INVALIDATE", }; asmlinkage void sunos_vadvise(u32 strategy) { static int count = 0; /* I wanna see who uses this... */ if (count++ < 5) printk("%s: Advises us to use %s paging strategy\n", current->comm, strategy <= 3 ? vstrings[strategy] : "BOGUS"); } /* This just wants the soft limit (ie. rlim_cur element) of the RLIMIT_NOFILE * resource limit and is for backwards compatibility with older sunos * revs. */ asmlinkage int sunos_getdtablesize(void) { return SUNOS_NR_OPEN; } #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) asmlinkage u32 sunos_sigblock(u32 blk_mask) { u32 old; spin_lock_irq(¤t->sigmask_lock); old = (u32) current->blocked.sig[0]; current->blocked.sig[0] |= (blk_mask & _BLOCKABLE); recalc_sigpending(current); spin_unlock_irq(¤t->sigmask_lock); return old; } asmlinkage u32 sunos_sigsetmask(u32 newmask) { u32 retval; spin_lock_irq(¤t->sigmask_lock); retval = (u32) current->blocked.sig[0]; current->blocked.sig[0] = (newmask & _BLOCKABLE); recalc_sigpending(current); spin_unlock_irq(¤t->sigmask_lock); return retval; } /* SunOS getdents is very similar to the newer Linux (iBCS2 compliant) */ /* getdents system call, the format of the structure just has a different */ /* layout (d_off+d_ino instead of d_ino+d_off) */ struct sunos_dirent { s32 d_off; u32 d_ino; u16 d_reclen; u16 d_namlen; char d_name[1]; }; struct sunos_dirent_callback { struct sunos_dirent *curr; struct sunos_dirent *previous; int count; int error; }; #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de))) #define ROUND_UP(x) (((x)+sizeof(s32)-1) & ~(sizeof(s32)-1)) static int sunos_filldir(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino, unsigned int d_type) { struct sunos_dirent * dirent; struct sunos_dirent_callback * buf = (struct sunos_dirent_callback *) __buf; int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1); buf->error = -EINVAL; /* only used if we fail.. */ if (reclen > buf->count) return -EINVAL; dirent = buf->previous; if (dirent) put_user(offset, &dirent->d_off); dirent = buf->curr; buf->previous = dirent; put_user(ino, &dirent->d_ino); put_user(namlen, &dirent->d_namlen); put_user(reclen, &dirent->d_reclen); copy_to_user(dirent->d_name, name, namlen); put_user(0, dirent->d_name + namlen); ((char *) dirent) += reclen; buf->curr = dirent; buf->count -= reclen; return 0; } asmlinkage int sunos_getdents(unsigned int fd, u32 u_dirent, int cnt) { struct file * file; struct sunos_dirent * lastdirent; struct sunos_dirent_callback buf; int error = -EBADF; void *dirent = (void *)A(u_dirent); if(fd >= SUNOS_NR_OPEN) goto out; file = fget(fd); if(!file) goto out; error = -EINVAL; if(cnt < (sizeof(struct sunos_dirent) + 255)) goto out_putf; buf.curr = (struct sunos_dirent *) dirent; buf.previous = NULL; buf.count = cnt; buf.error = 0; error = vfs_readdir(file, sunos_filldir, &buf); if (error < 0) goto out_putf; lastdirent = buf.previous; error = buf.error; if (lastdirent) { put_user(file->f_pos, &lastdirent->d_off); error = cnt - buf.count; } out_putf: fput(file); out: return error; } /* Old sunos getdirentries, severely broken compatibility stuff here. */ struct sunos_direntry { u32 d_ino; u16 d_reclen; u16 d_namlen; char d_name[1]; }; struct sunos_direntry_callback { struct sunos_direntry *curr; struct sunos_direntry *previous; int count; int error; }; static int sunos_filldirentry(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino, unsigned int d_type) { struct sunos_direntry * dirent; struct sunos_direntry_callback * buf = (struct sunos_direntry_callback *) __buf; int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1); buf->error = -EINVAL; /* only used if we fail.. */ if (reclen > buf->count) return -EINVAL; dirent = buf->previous; dirent = buf->curr; buf->previous = dirent; put_user(ino, &dirent->d_ino); put_user(namlen, &dirent->d_namlen); put_user(reclen, &dirent->d_reclen); copy_to_user(dirent->d_name, name, namlen); put_user(0, dirent->d_name + namlen); ((char *) dirent) += reclen; buf->curr = dirent; buf->count -= reclen; return 0; } asmlinkage int sunos_getdirentries(unsigned int fd, u32 u_dirent, int cnt, u32 u_basep) { void *dirent = (void *) A(u_dirent); unsigned int *basep = (unsigned int *)A(u_basep); struct file * file; struct sunos_direntry * lastdirent; int error = -EBADF; struct sunos_direntry_callback buf; if(fd >= SUNOS_NR_OPEN) goto out; file = fget(fd); if(!file) goto out; error = -EINVAL; if(cnt < (sizeof(struct sunos_direntry) + 255)) goto out_putf; buf.curr = (struct sunos_direntry *) dirent; buf.previous = NULL; buf.count = cnt; buf.error = 0; error = vfs_readdir(file, sunos_filldirentry, &buf); if (error < 0) goto out_putf; lastdirent = buf.previous; error = buf.error; if (lastdirent) { put_user(file->f_pos, basep); error = cnt - buf.count; } out_putf: fput(file); out: return error; } struct sunos_utsname { char sname[9]; char nname[9]; char nnext[56]; char rel[9]; char ver[9]; char mach[9]; }; asmlinkage int sunos_uname(struct sunos_utsname *name) { int ret; down_read(&uts_sem); ret = copy_to_user(&name->sname[0], &system_utsname.sysname[0], sizeof(name->sname) - 1); ret |= copy_to_user(&name->nname[0], &system_utsname.nodename[0], sizeof(name->nname) - 1); ret |= put_user('\0', &name->nname[8]); ret |= copy_to_user(&name->rel[0], &system_utsname.release[0], sizeof(name->rel) - 1); ret |= copy_to_user(&name->ver[0], &system_utsname.version[0], sizeof(name->ver) - 1); ret |= copy_to_user(&name->mach[0], &system_utsname.machine[0], sizeof(name->mach) - 1); up_read(&uts_sem); return ret; } asmlinkage int sunos_nosys(void) { struct pt_regs *regs; siginfo_t info; static int cnt; regs = current->thread.kregs; if ((current->thread.flags & SPARC_FLAG_32BIT) != 0) { regs->tpc &= 0xffffffff; regs->tnpc &= 0xffffffff; } info.si_signo = SIGSYS; info.si_errno = 0; info.si_code = __SI_FAULT|0x100; info.si_addr = (void *)regs->tpc; info.si_trapno = regs->u_regs[UREG_G1]; send_sig_info(SIGSYS, &info, current); if (cnt++ < 4) { printk("Process makes ni_syscall number %d, register dump:\n", (int) regs->u_regs[UREG_G1]); show_regs(regs); } return -ENOSYS; } /* This is not a real and complete implementation yet, just to keep * the easy SunOS binaries happy. */ asmlinkage int sunos_fpathconf(int fd, int name) { int ret; switch(name) { case _PCONF_LINK: ret = LINK_MAX; break; case _PCONF_CANON: ret = MAX_CANON; break; case _PCONF_INPUT: ret = MAX_INPUT; break; case _PCONF_NAME: ret = NAME_MAX; break; case _PCONF_PATH: ret = PATH_MAX; break; case _PCONF_PIPE: ret = PIPE_BUF; break; case _PCONF_CHRESTRICT: /* XXX Investigate XXX */ ret = 1; break; case _PCONF_NOTRUNC: /* XXX Investigate XXX */ case _PCONF_VDISABLE: ret = 0; break; default: ret = -EINVAL; break; } return ret; } asmlinkage int sunos_pathconf(u32 u_path, int name) { int ret; ret = sunos_fpathconf(0, name); /* XXX cheese XXX */ return ret; } /* SunOS mount system call emulation */ extern asmlinkage int sys32_select(int n, u32 inp, u32 outp, u32 exp, u32 tvp); struct timeval32 { int tv_sec, tv_usec; }; asmlinkage int sunos_select(int width, u32 inp, u32 outp, u32 exp, u32 tvp_x) { int ret; /* SunOS binaries expect that select won't change the tvp contents */ ret = sys32_select (width, inp, outp, exp, tvp_x); if (ret == -EINTR && tvp_x) { struct timeval32 *tvp = (struct timeval32 *)A(tvp_x); time_t sec, usec; __get_user(sec, &tvp->tv_sec); __get_user(usec, &tvp->tv_usec); if (sec == 0 && usec == 0) ret = 0; } return ret; } asmlinkage void sunos_nop(void) { return; } /* XXXXXXXXXX SunOS mount/umount. XXXXXXXXXXX */ #define SMNT_RDONLY 1 #define SMNT_NOSUID 2 #define SMNT_NEWTYPE 4 #define SMNT_GRPID 8 #define SMNT_REMOUNT 16 #define SMNT_NOSUB 32 #define SMNT_MULTI 64 #define SMNT_SYS5 128 struct sunos_fh_t { char fh_data [NFS_FHSIZE]; }; struct sunos_nfs_mount_args { struct sockaddr_in *addr; /* file server address */ struct nfs_fh *fh; /* File handle to be mounted */ int flags; /* flags */ int wsize; /* write size in bytes */ int rsize; /* read size in bytes */ int timeo; /* initial timeout in .1 secs */ int retrans; /* times to retry send */ char *hostname; /* server's hostname */ int acregmin; /* attr cache file min secs */ int acregmax; /* attr cache file max secs */ int acdirmin; /* attr cache dir min secs */ int acdirmax; /* attr cache dir max secs */ char *netname; /* server's netname */ }; extern asmlinkage int sys_mount(char *, char *, char *, unsigned long, void *); extern asmlinkage int sys_connect(int fd, struct sockaddr *uservaddr, int addrlen); extern asmlinkage int sys_socket(int family, int type, int protocol); extern asmlinkage int sys_bind(int fd, struct sockaddr *umyaddr, int addrlen); /* Bind the socket on a local reserved port and connect it to the * remote server. This on Linux/i386 is done by the mount program, * not by the kernel. */ /* XXXXXXXXXXXXXXXXXXXX */ static int sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr) { struct sockaddr_in local; struct sockaddr_in server; int try_port; int ret; struct socket *socket; struct inode *inode; struct file *file; file = fget(fd); if(!file) return 0; inode = file->f_dentry->d_inode; socket = &inode->u.socket_i; local.sin_family = AF_INET; local.sin_addr.s_addr = INADDR_ANY; /* IPPORT_RESERVED = 1024, can't find the definition in the kernel */ try_port = 1024; do { local.sin_port = htons (--try_port); ret = socket->ops->bind(socket, (struct sockaddr*)&local, sizeof(local)); } while (ret && try_port > (1024 / 2)); if (ret) { fput(file); return 0; } server.sin_family = AF_INET; server.sin_addr = addr->sin_addr; server.sin_port = NFS_PORT; /* Call sys_connect */ ret = socket->ops->connect (socket, (struct sockaddr *) &server, sizeof (server), file->f_flags); fput(file); if (ret < 0) return 0; return 1; } /* XXXXXXXXXXXXXXXXXXXX */ static int get_default (int value, int def_value) { if (value) return value; else return def_value; } /* XXXXXXXXXXXXXXXXXXXX */ static int sunos_nfs_mount(char *dir_name, int linux_flags, void *data) { int server_fd; char *the_name; struct nfs_mount_data linux_nfs_mount; struct sunos_nfs_mount_args sunos_mount; /* Ok, here comes the fun part: Linux's nfs mount needs a * socket connection to the server, but SunOS mount does not * require this, so we use the information on the destination * address to create a socket and bind it to a reserved * port on this system */ if (copy_from_user(&sunos_mount, data, sizeof(sunos_mount))) return -EFAULT; server_fd = sys_socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP); if (server_fd < 0) return -ENXIO; if (copy_from_user(&linux_nfs_mount.addr,sunos_mount.addr, sizeof(*sunos_mount.addr)) || copy_from_user(&linux_nfs_mount.root,sunos_mount.fh, sizeof(*sunos_mount.fh))) { sys_close (server_fd); return -EFAULT; } if (!sunos_nfs_get_server_fd (server_fd, &linux_nfs_mount.addr)){ sys_close (server_fd); return -ENXIO; } /* Now, bind it to a locally reserved port */ linux_nfs_mount.version = NFS_MOUNT_VERSION; linux_nfs_mount.flags = sunos_mount.flags; linux_nfs_mount.fd = server_fd; linux_nfs_mount.rsize = get_default (sunos_mount.rsize, 8192); linux_nfs_mount.wsize = get_default (sunos_mount.wsize, 8192); linux_nfs_mount.timeo = get_default (sunos_mount.timeo, 10); linux_nfs_mount.retrans = sunos_mount.retrans; linux_nfs_mount.acregmin = sunos_mount.acregmin; linux_nfs_mount.acregmax = sunos_mount.acregmax; linux_nfs_mount.acdirmin = sunos_mount.acdirmin; linux_nfs_mount.acdirmax = sunos_mount.acdirmax; the_name = getname(sunos_mount.hostname); if(IS_ERR(the_name)) return PTR_ERR(the_name); strncpy (linux_nfs_mount.hostname, the_name, 254); linux_nfs_mount.hostname [255] = 0; putname (the_name); return do_mount ("", dir_name, "nfs", linux_flags, &linux_nfs_mount); } /* XXXXXXXXXXXXXXXXXXXX */ asmlinkage int sunos_mount(char *type, char *dir, int flags, void *data) { int linux_flags = 0; int ret = -EINVAL; char *dev_fname = 0; char *dir_page, *type_page; if (!capable (CAP_SYS_ADMIN)) return -EPERM; /* We don't handle the integer fs type */ if ((flags & SMNT_NEWTYPE) == 0) goto out; /* Do not allow for those flags we don't support */ if (flags & (SMNT_GRPID|SMNT_NOSUB|SMNT_MULTI|SMNT_SYS5)) goto out; if(flags & SMNT_REMOUNT) linux_flags |= MS_REMOUNT; if(flags & SMNT_RDONLY) linux_flags |= MS_RDONLY; if(flags & SMNT_NOSUID) linux_flags |= MS_NOSUID; dir_page = getname(dir); ret = PTR_ERR(dir_page); if (IS_ERR(dir_page)) goto out; type_page = getname(type); ret = PTR_ERR(type_page); if (IS_ERR(type_page)) goto out1; if(strcmp(type_page, "ext2") == 0) { dev_fname = getname(data); } else if(strcmp(type_page, "iso9660") == 0) { dev_fname = getname(data); } else if(strcmp(type_page, "minix") == 0) { dev_fname = getname(data); } else if(strcmp(type_page, "nfs") == 0) { ret = sunos_nfs_mount (dir_page, flags, data); goto out2; } else if(strcmp(type_page, "ufs") == 0) { printk("Warning: UFS filesystem mounts unsupported.\n"); ret = -ENODEV; goto out2; } else if(strcmp(type_page, "proc")) { ret = -ENODEV; goto out2; } ret = PTR_ERR(dev_fname); if (IS_ERR(dev_fname)) goto out2; lock_kernel(); ret = do_mount(dev_fname, dir_page, type_page, linux_flags, NULL); unlock_kernel(); if (dev_fname) putname(dev_fname); out2: putname(type_page); out1: putname(dir_page); out: return ret; } extern asmlinkage int sys_setsid(void); extern asmlinkage int sys_setpgid(pid_t, pid_t); asmlinkage int sunos_setpgrp(pid_t pid, pid_t pgid) { int ret; /* So stupid... */ if((!pid || pid == current->pid) && !pgid) { sys_setsid(); ret = 0; } else { ret = sys_setpgid(pid, pgid); } return ret; } /* So stupid... */ extern asmlinkage int sys32_wait4(__kernel_pid_t32 pid, u32 stat_addr, int options, u32 ru); asmlinkage int sunos_wait4(__kernel_pid_t32 pid, u32 stat_addr, int options, u32 ru) { int ret; ret = sys32_wait4((pid ? pid : ((__kernel_pid_t32)-1)), stat_addr, options, ru); return ret; } extern int kill_pg(int, int, int); asmlinkage int sunos_killpg(int pgrp, int sig) { return kill_pg(pgrp, sig, 0); } asmlinkage int sunos_audit(void) { printk ("sys_audit\n"); return -1; } extern asmlinkage u32 sunos_gethostid(void) { u32 ret; ret = (((u32)idprom->id_machtype << 24) | ((u32)idprom->id_sernum)); return ret; } /* sysconf options, for SunOS compatibility */ #define _SC_ARG_MAX 1 #define _SC_CHILD_MAX 2 #define _SC_CLK_TCK 3 #define _SC_NGROUPS_MAX 4 #define _SC_OPEN_MAX 5 #define _SC_JOB_CONTROL 6 #define _SC_SAVED_IDS 7 #define _SC_VERSION 8 extern asmlinkage s32 sunos_sysconf (int name) { s32 ret; switch (name){ case _SC_ARG_MAX: ret = ARG_MAX; break; case _SC_CHILD_MAX: ret = CHILD_MAX; break; case _SC_CLK_TCK: ret = HZ; break; case _SC_NGROUPS_MAX: ret = NGROUPS_MAX; break; case _SC_OPEN_MAX: ret = OPEN_MAX; break; case _SC_JOB_CONTROL: ret = 1; /* yes, we do support job control */ break; case _SC_SAVED_IDS: ret = 1; /* yes, we do support saved uids */ break; case _SC_VERSION: /* mhm, POSIX_VERSION is in /usr/include/unistd.h * should it go on /usr/include/linux? */ ret = 199009; break; default: ret = -1; break; }; return ret; } asmlinkage int sunos_semsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 ptr) { union semun arg4; int ret; switch (op) { case 0: /* Most arguments match on a 1:1 basis but cmd doesn't */ switch(arg3) { case 4: arg3=GETPID; break; case 5: arg3=GETVAL; break; case 6: arg3=GETALL; break; case 3: arg3=GETNCNT; break; case 7: arg3=GETZCNT; break; case 8: arg3=SETVAL; break; case 9: arg3=SETALL; break; } /* sys_semctl(): */ arg4.__pad=(void *)A(ptr); /* value to modify semaphore to */ ret = sys_semctl((int)arg1, (int)arg2, (int)arg3, arg4); break; case 1: /* sys_semget(): */ ret = sys_semget((key_t)arg1, (int)arg2, (int)arg3); break; case 2: /* sys_semop(): */ ret = sys_semop((int)arg1, (struct sembuf *)A(arg2), (unsigned)arg3); break; default: ret = -EINVAL; break; }; return ret; } struct msgbuf32 { s32 mtype; char mtext[1]; }; struct ipc_perm32 { key_t key; __kernel_uid_t32 uid; __kernel_gid_t32 gid; __kernel_uid_t32 cuid; __kernel_gid_t32 cgid; __kernel_mode_t32 mode; unsigned short seq; }; struct msqid_ds32 { struct ipc_perm32 msg_perm; u32 msg_first; u32 msg_last; __kernel_time_t32 msg_stime; __kernel_time_t32 msg_rtime; __kernel_time_t32 msg_ctime; u32 wwait; u32 rwait; unsigned short msg_cbytes; unsigned short msg_qnum; unsigned short msg_qbytes; __kernel_ipc_pid_t32 msg_lspid; __kernel_ipc_pid_t32 msg_lrpid; }; static inline int sunos_msqid_get(struct msqid_ds32 *user, struct msqid_ds *kern) { if(get_user(kern->msg_perm.key, &user->msg_perm.key) || __get_user(kern->msg_perm.uid, &user->msg_perm.uid) || __get_user(kern->msg_perm.gid, &user->msg_perm.gid) || __get_user(kern->msg_perm.cuid, &user->msg_perm.cuid) || __get_user(kern->msg_perm.cgid, &user->msg_perm.cgid) || __get_user(kern->msg_stime, &user->msg_stime) || __get_user(kern->msg_rtime, &user->msg_rtime) || __get_user(kern->msg_ctime, &user->msg_ctime) || __get_user(kern->msg_ctime, &user->msg_cbytes) || __get_user(kern->msg_ctime, &user->msg_qnum) || __get_user(kern->msg_ctime, &user->msg_qbytes) || __get_user(kern->msg_ctime, &user->msg_lspid) || __get_user(kern->msg_ctime, &user->msg_lrpid)) return -EFAULT; return 0; } static inline int sunos_msqid_put(struct msqid_ds32 *user, struct msqid_ds *kern) { if(put_user(kern->msg_perm.key, &user->msg_perm.key) || __put_user(kern->msg_perm.uid, &user->msg_perm.uid) || __put_user(kern->msg_perm.gid, &user->msg_perm.gid) || __put_user(kern->msg_perm.cuid, &user->msg_perm.cuid) || __put_user(kern->msg_perm.cgid, &user->msg_perm.cgid) || __put_user(kern->msg_stime, &user->msg_stime) || __put_user(kern->msg_rtime, &user->msg_rtime) || __put_user(kern->msg_ctime, &user->msg_ctime) || __put_user(kern->msg_ctime, &user->msg_cbytes) || __put_user(kern->msg_ctime, &user->msg_qnum) || __put_user(kern->msg_ctime, &user->msg_qbytes) || __put_user(kern->msg_ctime, &user->msg_lspid) || __put_user(kern->msg_ctime, &user->msg_lrpid)) return -EFAULT; return 0; } static inline int sunos_msgbuf_get(struct msgbuf32 *user, struct msgbuf *kern, int len) { if(get_user(kern->mtype, &user->mtype) || __copy_from_user(kern->mtext, &user->mtext, len)) return -EFAULT; return 0; } static inline int sunos_msgbuf_put(struct msgbuf32 *user, struct msgbuf *kern, int len) { if(put_user(kern->mtype, &user->mtype) || __copy_to_user(user->mtext, kern->mtext, len)) return -EFAULT; return 0; } asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4) { struct sparc_stackf32 *sp; struct msqid_ds kds; struct msgbuf *kmbuf; mm_segment_t old_fs = get_fs(); u32 arg5; int rval; switch(op) { case 0: rval = sys_msgget((key_t)arg1, (int)arg2); break; case 1: if(!sunos_msqid_get((struct msqid_ds32 *)A(arg3), &kds)) { set_fs(KERNEL_DS); rval = sys_msgctl((int)arg1, (int)arg2, (struct msqid_ds *)A(arg3)); set_fs(old_fs); if(!rval) rval = sunos_msqid_put((struct msqid_ds32 *)A(arg3), &kds); } else rval = -EFAULT; break; case 2: rval = -EFAULT; kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, GFP_KERNEL); if(!kmbuf) break; sp = (struct sparc_stackf32 *) (current->thread.kregs->u_regs[UREG_FP] & 0xffffffffUL); if(get_user(arg5, &sp->xxargs[0])) { rval = -EFAULT; kfree(kmbuf); break; } set_fs(KERNEL_DS); rval = sys_msgrcv((int)arg1, kmbuf, (size_t)arg3, (long)arg4, (int)arg5); set_fs(old_fs); if(!rval) rval = sunos_msgbuf_put((struct msgbuf32 *)A(arg2), kmbuf, arg3); kfree(kmbuf); break; case 3: rval = -EFAULT; kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, GFP_KERNEL); if(!kmbuf || sunos_msgbuf_get((struct msgbuf32 *)A(arg2), kmbuf, arg3)) break; set_fs(KERNEL_DS); rval = sys_msgsnd((int)arg1, kmbuf, (size_t)arg3, (int)arg4); set_fs(old_fs); kfree(kmbuf); break; default: rval = -EINVAL; break; } return rval; } struct shmid_ds32 { struct ipc_perm32 shm_perm; int shm_segsz; __kernel_time_t32 shm_atime; __kernel_time_t32 shm_dtime; __kernel_time_t32 shm_ctime; __kernel_ipc_pid_t32 shm_cpid; __kernel_ipc_pid_t32 shm_lpid; unsigned short shm_nattch; }; static inline int sunos_shmid_get(struct shmid_ds32 *user, struct shmid_ds *kern) { if(get_user(kern->shm_perm.key, &user->shm_perm.key) || __get_user(kern->shm_perm.uid, &user->shm_perm.uid) || __get_user(kern->shm_perm.gid, &user->shm_perm.gid) || __get_user(kern->shm_perm.cuid, &user->shm_perm.cuid) || __get_user(kern->shm_perm.cgid, &user->shm_perm.cgid) || __get_user(kern->shm_segsz, &user->shm_segsz) || __get_user(kern->shm_atime, &user->shm_atime) || __get_user(kern->shm_dtime, &user->shm_dtime) || __get_user(kern->shm_ctime, &user->shm_ctime) || __get_user(kern->shm_cpid, &user->shm_cpid) || __get_user(kern->shm_lpid, &user->shm_lpid) || __get_user(kern->shm_nattch, &user->shm_nattch)) return -EFAULT; return 0; } static inline int sunos_shmid_put(struct shmid_ds32 *user, struct shmid_ds *kern) { if(put_user(kern->shm_perm.key, &user->shm_perm.key) || __put_user(kern->shm_perm.uid, &user->shm_perm.uid) || __put_user(kern->shm_perm.gid, &user->shm_perm.gid) || __put_user(kern->shm_perm.cuid, &user->shm_perm.cuid) || __put_user(kern->shm_perm.cgid, &user->shm_perm.cgid) || __put_user(kern->shm_segsz, &user->shm_segsz) || __put_user(kern->shm_atime, &user->shm_atime) || __put_user(kern->shm_dtime, &user->shm_dtime) || __put_user(kern->shm_ctime, &user->shm_ctime) || __put_user(kern->shm_cpid, &user->shm_cpid) || __put_user(kern->shm_lpid, &user->shm_lpid) || __put_user(kern->shm_nattch, &user->shm_nattch)) return -EFAULT; return 0; } asmlinkage int sunos_shmsys(int op, u32 arg1, u32 arg2, u32 arg3) { struct shmid_ds ksds; unsigned long raddr; mm_segment_t old_fs = get_fs(); int rval; switch(op) { case 0: /* sys_shmat(): attach a shared memory area */ rval = sys_shmat((int)arg1,(char *)A(arg2),(int)arg3,&raddr); if(!rval) rval = (int) raddr; break; case 1: /* sys_shmctl(): modify shared memory area attr. */ if(!sunos_shmid_get((struct shmid_ds32 *)A(arg3), &ksds)) { set_fs(KERNEL_DS); rval = sys_shmctl((int)arg1,(int)arg2, &ksds); set_fs(old_fs); if(!rval) rval = sunos_shmid_put((struct shmid_ds32 *)A(arg3), &ksds); } else rval = -EFAULT; break; case 2: /* sys_shmdt(): detach a shared memory area */ rval = sys_shmdt((char *)A(arg1)); break; case 3: /* sys_shmget(): get a shared memory area */ rval = sys_shmget((key_t)arg1,(int)arg2,(int)arg3); break; default: rval = -EINVAL; break; }; return rval; } extern asmlinkage long sparc32_open(const char * filename, int flags, int mode); asmlinkage int sunos_open(u32 fname, int flags, int mode) { const char *filename = (const char *)(long)fname; return sparc32_open(filename, flags, mode); } #define SUNOS_EWOULDBLOCK 35 /* see the sunos man page read(2v) for an explanation of this garbage. We use O_NDELAY to mark file descriptors that have been set non-blocking using 4.2BSD style calls. (tridge) */ static inline int check_nonblock(int ret, int fd) { if (ret == -EAGAIN) { struct file * file = fget(fd); if (file) { if (file->f_flags & O_NDELAY) ret = -SUNOS_EWOULDBLOCK; fput(file); } } return ret; } extern asmlinkage int sys_read(unsigned int fd, char *buf, unsigned long count); extern asmlinkage int sys_write(unsigned int fd, char *buf, unsigned long count); extern asmlinkage int sys_recv(int fd, void *ubuf, size_t size, unsigned flags); extern asmlinkage int sys_send(int fd, void *buff, size_t len, unsigned flags); extern asmlinkage int sys_accept(int fd, struct sockaddr *sa, int *addrlen); extern asmlinkage int sys32_readv(u32 fd, u32 vector, s32 count); extern asmlinkage int sys32_writev(u32 fd, u32 vector, s32 count); asmlinkage int sunos_read(unsigned int fd, u32 buf, u32 count) { int ret; ret = check_nonblock(sys_read(fd, (char *)A(buf), count), fd); return ret; } asmlinkage int sunos_readv(u32 fd, u32 vector, s32 count) { int ret; ret = check_nonblock(sys32_readv(fd, vector, count), fd); return ret; } asmlinkage int sunos_write(unsigned int fd, u32 buf, u32 count) { int ret; ret = check_nonblock(sys_write(fd, (char *)A(buf), count), fd); return ret; } asmlinkage int sunos_writev(u32 fd, u32 vector, s32 count) { int ret; ret = check_nonblock(sys32_writev(fd, vector, count), fd); return ret; } asmlinkage int sunos_recv(int fd, u32 ubuf, int size, unsigned flags) { int ret; ret = check_nonblock(sys_recv(fd, (void *)A(ubuf), size, flags), fd); return ret; } asmlinkage int sunos_send(int fd, u32 buff, int len, unsigned flags) { int ret; ret = check_nonblock(sys_send(fd, (void *)A(buff), len, flags), fd); return ret; } extern asmlinkage int sys_setsockopt(int fd, int level, int optname, char *optval, int optlen); asmlinkage int sunos_socket(int family, int type, int protocol) { int ret, one = 1; ret = sys_socket(family, type, protocol); if (ret < 0) goto out; sys_setsockopt(ret, SOL_SOCKET, SO_BSDCOMPAT, (char *)&one, sizeof(one)); out: return ret; } asmlinkage int sunos_accept(int fd, u32 sa, u32 addrlen) { int ret, one = 1; while (1) { ret = check_nonblock(sys_accept(fd, (struct sockaddr *)A(sa), (int *)A(addrlen)), fd); if (ret != -ENETUNREACH && ret != -EHOSTUNREACH) break; } if (ret < 0) goto out; sys_setsockopt(ret, SOL_SOCKET, SO_BSDCOMPAT, (char *)&one, sizeof(one)); out: return ret; } #define SUNOS_SV_INTERRUPT 2 asmlinkage int sunos_sigaction (int sig, u32 act, u32 oact) { struct k_sigaction new_ka, old_ka; int ret; if (act) { old_sigset_t32 mask; if (get_user((long)new_ka.sa.sa_handler, &((struct old_sigaction32 *)A(act))->sa_handler) || __get_user(new_ka.sa.sa_flags, &((struct old_sigaction32 *)A(act))->sa_flags)) return -EFAULT; __get_user(mask, &((struct old_sigaction32 *)A(act))->sa_mask); new_ka.sa.sa_restorer = NULL; new_ka.ka_restorer = NULL; siginitset(&new_ka.sa.sa_mask, mask); new_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT; } ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); if (!ret && oact) { old_ka.sa.sa_flags ^= SUNOS_SV_INTERRUPT; if (put_user((long)old_ka.sa.sa_handler, &((struct old_sigaction32 *)A(oact))->sa_handler) || __put_user(old_ka.sa.sa_flags, &((struct old_sigaction32 *)A(oact))->sa_flags)) return -EFAULT; __put_user(old_ka.sa.sa_mask.sig[0], &((struct old_sigaction32 *)A(oact))->sa_mask); } return ret; } extern asmlinkage int sys_setsockopt(int fd, int level, int optname, char *optval, int optlen); extern asmlinkage int sys32_getsockopt(int fd, int level, int optname, u32 optval, u32 optlen); asmlinkage int sunos_setsockopt(int fd, int level, int optname, u32 optval, int optlen) { int tr_opt = optname; int ret; if (level == SOL_IP) { /* Multicast socketopts (ttl, membership) */ if (tr_opt >=2 && tr_opt <= 6) tr_opt += 30; } ret = sys_setsockopt(fd, level, tr_opt, (char *)A(optval), optlen); return ret; } asmlinkage int sunos_getsockopt(int fd, int level, int optname, u32 optval, u32 optlen) { int tr_opt = optname; int ret; if (level == SOL_IP) { /* Multicast socketopts (ttl, membership) */ if (tr_opt >=2 && tr_opt <= 6) tr_opt += 30; } ret = sys32_getsockopt(fd, level, tr_opt, optval, optlen); return ret; }