73e63e429a
dereferencing it. (I added this during search for the problem fixed by the earlier readlink buffer allocation fix, and the checks have not triggered. Still, it's wrong of the kernel to use pointers from user space without validation.)
760 lines
21 KiB
C
760 lines
21 KiB
C
/* $NetBSD: coda_venus.c,v 1.21 2006/04/04 13:11:08 gdt Exp $ */
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/*
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*
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* Coda: an Experimental Distributed File System
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* Release 3.1
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*
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* Copyright (c) 1987-1998 Carnegie Mellon University
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* All Rights Reserved
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation, and
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* that credit is given to Carnegie Mellon University in all documents
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* and publicity pertaining to direct or indirect use of this code or its
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* derivatives.
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*
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* CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS,
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* SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS
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* FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON
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* DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER
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* RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF
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* ANY DERIVATIVE WORK.
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*
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* Carnegie Mellon encourages users of this software to return any
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* improvements or extensions that they make, and to grant Carnegie
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* Mellon the rights to redistribute these changes without encumbrance.
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*
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* @(#) coda/coda_venus.c,v 1.1.1.1 1998/08/29 21:26:45 rvb Exp $
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: coda_venus.c,v 1.21 2006/04/04 13:11:08 gdt Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/select.h>
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#include <sys/ioctl.h>
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/* for CNV_OFLAGS below */
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#include <sys/fcntl.h>
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#include <coda/coda.h>
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#include <coda/cnode.h>
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#include <coda/coda_venus.h>
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#include <coda/coda_pioctl.h>
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#ifdef _KERNEL_OPT
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#include "opt_coda_compat.h"
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#endif
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/*
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* Isize and Osize are the sizes of the input and output arguments.
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* SEMI-INVARIANT: name##_size (e.g. coda_readlink_size) is the max of
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* the input and output. This invariant is not well maintained, but
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* should be true after ALLOC_*. Isize is modified after allocation
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* by STRCPY below - this is in general unsafe and needs fixing.
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*/
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#define DECL_NO_IN(name) \
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struct coda_in_hdr *inp; \
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struct name ## _out *outp; \
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int name ## _size = sizeof (struct coda_in_hdr); \
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int Isize = sizeof (struct coda_in_hdr); \
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int Osize = sizeof (struct name ## _out); \
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int error
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#define DECL(name) \
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struct name ## _in *inp; \
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struct name ## _out *outp; \
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int name ## _size = sizeof (struct name ## _in); \
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int Isize = sizeof (struct name ## _in); \
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int Osize = sizeof (struct name ## _out); \
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int error
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#define DECL_NO_OUT(name) \
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struct name ## _in *inp; \
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struct coda_out_hdr *outp; \
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int name ## _size = sizeof (struct name ## _in); \
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int Isize = sizeof (struct name ## _in); \
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int Osize = sizeof (struct coda_out_hdr); \
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int error
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#define ALLOC_NO_IN(name) \
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if (Osize > name ## _size) \
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name ## _size = Osize; \
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CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\
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outp = (struct name ## _out *) inp
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#define ALLOC(name) \
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if (Osize > name ## _size) \
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name ## _size = Osize; \
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CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
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outp = (struct name ## _out *) inp
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#define ALLOC_NO_OUT(name) \
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if (Osize > name ## _size) \
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name ## _size = Osize; \
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CODA_ALLOC(inp, struct name ## _in *, name ## _size);\
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outp = (struct coda_out_hdr *) inp
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#define STRCPY(struc, name, len) \
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bcopy(name, (char *)inp + (int)inp->struc, len); \
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((char*)inp + (int)inp->struc)[len++] = 0; \
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Isize += len
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/* XXX verify that Isize has not overrun available storage */
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#ifdef CODA_COMPAT_5
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#define INIT_IN(in, op, ident, p) \
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(in)->opcode = (op); \
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(in)->pid = p ? p->p_pid : -1; \
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(in)->pgid = p ? p->p_pgid : -1; \
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(in)->sid = (p && p->p_session && p->p_session->s_leader) ? \
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(p->p_session->s_leader->p_pid) : -1; \
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KASSERT(cred != NULL); \
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KASSERT(cred != FSCRED); \
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if (ident != NOCRED) { \
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(in)->cred.cr_uid = ident->cr_uid; \
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(in)->cred.cr_groupid = ident->cr_gid; \
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} else { \
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memset(&((in)->cred), 0, sizeof(struct coda_cred)); \
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(in)->cred.cr_uid = -1; \
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(in)->cred.cr_groupid = -1; \
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} \
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#else
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#define INIT_IN(in, op, ident, p) \
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(in)->opcode = (op); \
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(in)->pid = p ? p->p_pid : -1; \
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(in)->pgid = p ? p->p_pgid : -1; \
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KASSERT(cred != NULL); \
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KASSERT(cred != FSCRED); \
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if (ident != NOCRED) { \
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(in)->uid = ident->cr_uid; \
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} else { \
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(in)->uid = -1; \
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} \
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#endif
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#define INIT_IN_L(in, op, ident, l) \
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INIT_IN(in, op, ident, (l ? l->l_proc : NULL))
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#define CNV_OFLAG(to, from) \
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do { \
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to = 0; \
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if (from & FREAD) to |= C_O_READ; \
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if (from & FWRITE) to |= C_O_WRITE; \
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if (from & O_TRUNC) to |= C_O_TRUNC; \
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if (from & O_EXCL) to |= C_O_EXCL; \
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if (from & O_CREAT) to |= C_O_CREAT; \
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} while (/*CONSTCOND*/ 0)
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#define CNV_VV2V_ATTR(top, fromp) \
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do { \
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(top)->va_type = (fromp)->va_type; \
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(top)->va_mode = (fromp)->va_mode; \
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(top)->va_nlink = (fromp)->va_nlink; \
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(top)->va_uid = (fromp)->va_uid; \
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(top)->va_gid = (fromp)->va_gid; \
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(top)->va_fsid = VNOVAL; \
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(top)->va_fileid = (fromp)->va_fileid; \
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(top)->va_size = (fromp)->va_size; \
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(top)->va_blocksize = (fromp)->va_blocksize; \
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(top)->va_atime = (fromp)->va_atime; \
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(top)->va_mtime = (fromp)->va_mtime; \
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(top)->va_ctime = (fromp)->va_ctime; \
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(top)->va_gen = (fromp)->va_gen; \
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(top)->va_flags = (fromp)->va_flags; \
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(top)->va_rdev = (fromp)->va_rdev; \
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(top)->va_bytes = (fromp)->va_bytes; \
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(top)->va_filerev = (fromp)->va_filerev; \
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(top)->va_vaflags = VNOVAL; \
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(top)->va_spare = VNOVAL; \
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} while (/*CONSTCOND*/ 0)
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#define CNV_V2VV_ATTR(top, fromp) \
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do { \
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(top)->va_type = (fromp)->va_type; \
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(top)->va_mode = (fromp)->va_mode; \
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(top)->va_nlink = (fromp)->va_nlink; \
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(top)->va_uid = (fromp)->va_uid; \
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(top)->va_gid = (fromp)->va_gid; \
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(top)->va_fileid = (fromp)->va_fileid; \
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(top)->va_size = (fromp)->va_size; \
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(top)->va_blocksize = (fromp)->va_blocksize; \
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(top)->va_atime = (fromp)->va_atime; \
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(top)->va_mtime = (fromp)->va_mtime; \
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(top)->va_ctime = (fromp)->va_ctime; \
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(top)->va_gen = (fromp)->va_gen; \
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(top)->va_flags = (fromp)->va_flags; \
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(top)->va_rdev = (fromp)->va_rdev; \
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(top)->va_bytes = (fromp)->va_bytes; \
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(top)->va_filerev = (fromp)->va_filerev; \
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} while (/*CONSTCOND*/ 0)
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int coda_kernel_version = CODA_KERNEL_VERSION;
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int
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venus_root(void *mdp,
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struct ucred *cred, struct proc *p,
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/*out*/ CodaFid *VFid)
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{
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DECL_NO_IN(coda_root); /* sets Isize & Osize */
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ALLOC_NO_IN(coda_root); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN(inp, CODA_ROOT, cred, p);
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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if (!error)
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*VFid = outp->Fid;
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CODA_FREE(inp, coda_root_size);
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return error;
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}
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int
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venus_open(void *mdp, CodaFid *fid, int flag,
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struct ucred *cred, struct lwp *l,
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/*out*/ dev_t *dev, ino_t *inode)
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{
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int cflag;
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DECL(coda_open); /* sets Isize & Osize */
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ALLOC(coda_open); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_OPEN, cred, l);
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inp->Fid = *fid;
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CNV_OFLAG(cflag, flag);
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inp->flags = cflag;
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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KASSERT(outp != NULL);
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if (!error) {
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*dev = outp->dev;
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*inode = outp->inode;
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}
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CODA_FREE(inp, coda_open_size);
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return error;
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}
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int
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venus_close(void *mdp, CodaFid *fid, int flag,
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struct ucred *cred, struct lwp *l)
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{
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int cflag;
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DECL_NO_OUT(coda_close); /* sets Isize & Osize */
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ALLOC_NO_OUT(coda_close); /* sets inp & outp */
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INIT_IN_L(&inp->ih, CODA_CLOSE, cred, l);
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inp->Fid = *fid;
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CNV_OFLAG(cflag, flag);
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inp->flags = cflag;
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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CODA_FREE(inp, coda_close_size);
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return error;
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}
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/*
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* these two calls will not exist!!! the container file is read/written
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* directly.
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*/
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void
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venus_read(void)
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{
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}
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void
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venus_write(void)
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{
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}
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/*
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* this is a bit sad too. the ioctl's are for the control file, not for
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* normal files.
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*/
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int
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venus_ioctl(void *mdp, CodaFid *fid,
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int com, int flag, caddr_t data,
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struct ucred *cred, struct lwp *l)
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{
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DECL(coda_ioctl); /* sets Isize & Osize */
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struct PioctlData *iap = (struct PioctlData *)data;
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int tmp;
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coda_ioctl_size = VC_MAXMSGSIZE;
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ALLOC(coda_ioctl); /* sets inp & outp */
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INIT_IN_L(&inp->ih, CODA_IOCTL, cred, l);
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inp->Fid = *fid;
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/* command was mutated by increasing its size field to reflect the
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* path and follow args. we need to subtract that out before sending
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* the command to venus.
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*/
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inp->cmd = (com & ~(IOCPARM_MASK << 16));
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tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int);
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inp->cmd |= (tmp & IOCPARM_MASK) << 16;
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if (iap->vi.in_size < 0 || iap->vi.in_size > VC_MAXMSGSIZE)
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return (EINVAL);
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inp->rwflag = flag;
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inp->len = iap->vi.in_size;
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inp->data = (char *)(sizeof (struct coda_ioctl_in));
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error = copyin(iap->vi.in, (char*)inp + (int)(long)inp->data,
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iap->vi.in_size);
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if (error) {
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CODA_FREE(inp, coda_ioctl_size);
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return(error);
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}
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Osize = VC_MAXMSGSIZE;
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error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp);
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/* copy out the out buffer. */
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if (!error) {
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if (outp->len > iap->vi.out_size) {
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error = EINVAL;
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} else {
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error = copyout((char *)outp + (int)(long)outp->data,
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iap->vi.out, iap->vi.out_size);
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}
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}
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CODA_FREE(inp, coda_ioctl_size);
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return error;
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}
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int
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venus_getattr(void *mdp, CodaFid *fid,
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struct ucred *cred, struct lwp *l,
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/*out*/ struct vattr *vap)
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{
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DECL(coda_getattr); /* sets Isize & Osize */
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ALLOC(coda_getattr); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_GETATTR, cred, l);
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inp->Fid = *fid;
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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if (!error) {
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CNV_VV2V_ATTR(vap, &outp->attr);
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}
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CODA_FREE(inp, coda_getattr_size);
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return error;
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}
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int
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venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap,
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struct ucred *cred, struct lwp *l)
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{
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DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */
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ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_SETATTR, cred, l);
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inp->Fid = *fid;
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CNV_V2VV_ATTR(&inp->attr, vap);
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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CODA_FREE(inp, coda_setattr_size);
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return error;
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}
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int
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venus_access(void *mdp, CodaFid *fid, int mode,
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struct ucred *cred, struct lwp *l)
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{
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DECL_NO_OUT(coda_access); /* sets Isize & Osize */
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ALLOC_NO_OUT(coda_access); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_ACCESS, cred, l);
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inp->Fid = *fid;
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inp->flags = mode;
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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CODA_FREE(inp, coda_access_size);
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return error;
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}
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int
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venus_readlink(void *mdp, CodaFid *fid,
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struct ucred *cred, struct lwp *l,
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/*out*/ char **str, int *len)
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{
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DECL(coda_readlink); /* sets Isize & Osize */
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/* XXX coda_readlink_size should not be set here */
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coda_readlink_size += CODA_MAXPATHLEN;
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Osize += CODA_MAXPATHLEN;
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ALLOC(coda_readlink); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_READLINK, cred, l);
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inp->Fid = *fid;
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error = coda_call(mdp, Isize, &Osize, (char *)inp);
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KASSERT(outp != NULL);
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if (error != 0)
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goto out;
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/* Check count for reasonableness */
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if (outp->count <= 0 || outp->count > CODA_MAXPATHLEN) {
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printf("venus_readlink: bad count %d\n", outp->count);
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error = EINVAL;
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goto out;
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}
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/*
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* Check data pointer for reasonableness. It must point after
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* itself, and within the allocated region.
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*/
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if ((int) outp->data < sizeof(struct coda_readlink_out) ) {
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printf("venus_readlink: data pointer %d too low\n",
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(int) outp->data);
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error = EINVAL;
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goto out;
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}
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if ((int) outp->data + outp->count >
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sizeof(struct coda_readlink_out) + CODA_MAXPATHLEN) {
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printf("venus_readlink: data pointer %d too high\n",
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(int) outp->data);
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error = EINVAL;
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goto out;
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}
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if (!error) {
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CODA_ALLOC(*str, char *, outp->count);
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*len = outp->count;
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bcopy((char *)outp + (int)(long)outp->data, *str, *len);
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}
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out:
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CODA_FREE(inp, coda_readlink_size);
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return error;
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}
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int
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venus_fsync(void *mdp, CodaFid *fid,
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struct ucred *cred, struct lwp *l)
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{
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DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */
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ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */
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/* send the open to venus. */
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INIT_IN_L(&inp->ih, CODA_FSYNC, cred, l);
|
|
inp->Fid = *fid;
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_fsync_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_lookup(void *mdp, CodaFid *fid,
|
|
const char *nm, int len,
|
|
struct ucred *cred, struct lwp *l,
|
|
/*out*/ CodaFid *VFid, int *vtype)
|
|
{
|
|
DECL(coda_lookup); /* sets Isize & Osize */
|
|
coda_lookup_size += len + 1;
|
|
ALLOC(coda_lookup); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_LOOKUP, cred, l);
|
|
inp->Fid = *fid;
|
|
|
|
/* NOTE:
|
|
* Between version 1 and version 2 we have added an extra flag field
|
|
* to this structure. But because the string was at the end and because
|
|
* of the weird way we represent strings by having the slot point to
|
|
* where the string characters are in the "heap", we can just slip the
|
|
* flag parameter in after the string slot pointer and veni that don't
|
|
* know better won't see this new flag field ...
|
|
* Otherwise we'd need two different venus_lookup functions.
|
|
*/
|
|
inp->name = Isize;
|
|
inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */
|
|
/* This is safe because we preallocated len+1 extra. */
|
|
STRCPY(name, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
*VFid = outp->Fid;
|
|
*vtype = outp->vtype;
|
|
}
|
|
|
|
CODA_FREE(inp, coda_lookup_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_create(void *mdp, CodaFid *fid,
|
|
const char *nm, int len, int exclusive, int mode, struct vattr *va,
|
|
struct ucred *cred, struct lwp *l,
|
|
/*out*/ CodaFid *VFid, struct vattr *attr)
|
|
{
|
|
DECL(coda_create); /* sets Isize & Osize */
|
|
coda_create_size += len + 1;
|
|
ALLOC(coda_create); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_CREATE, cred, l);
|
|
inp->Fid = *fid;
|
|
inp->excl = exclusive ? C_O_EXCL : 0;
|
|
inp->mode = mode<<6;
|
|
CNV_V2VV_ATTR(&inp->attr, va);
|
|
|
|
inp->name = Isize;
|
|
STRCPY(name, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
*VFid = outp->Fid;
|
|
CNV_VV2V_ATTR(attr, &outp->attr);
|
|
}
|
|
|
|
CODA_FREE(inp, coda_create_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_remove(void *mdp, CodaFid *fid,
|
|
const char *nm, int len,
|
|
struct ucred *cred, struct lwp *l)
|
|
{
|
|
DECL_NO_OUT(coda_remove); /* sets Isize & Osize */
|
|
coda_remove_size += len + 1;
|
|
ALLOC_NO_OUT(coda_remove); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_REMOVE, cred, l);
|
|
inp->Fid = *fid;
|
|
|
|
inp->name = Isize;
|
|
STRCPY(name, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_remove_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_link(void *mdp, CodaFid *fid, CodaFid *tfid,
|
|
const char *nm, int len,
|
|
struct ucred *cred, struct lwp *l)
|
|
{
|
|
DECL_NO_OUT(coda_link); /* sets Isize & Osize */
|
|
coda_link_size += len + 1;
|
|
ALLOC_NO_OUT(coda_link); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_LINK, cred, l);
|
|
inp->sourceFid = *fid;
|
|
inp->destFid = *tfid;
|
|
|
|
inp->tname = Isize;
|
|
STRCPY(tname, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_link_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid,
|
|
const char *nm, int len, const char *tnm, int tlen,
|
|
struct ucred *cred, struct lwp *l)
|
|
{
|
|
DECL_NO_OUT(coda_rename); /* sets Isize & Osize */
|
|
coda_rename_size += len + 1 + tlen + 1;
|
|
ALLOC_NO_OUT(coda_rename); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_RENAME, cred, l);
|
|
inp->sourceFid = *fid;
|
|
inp->destFid = *tfid;
|
|
|
|
inp->srcname = Isize;
|
|
STRCPY(srcname, nm, len); /* increments Isize */
|
|
|
|
inp->destname = Isize;
|
|
STRCPY(destname, tnm, tlen); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_rename_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_mkdir(void *mdp, CodaFid *fid,
|
|
const char *nm, int len, struct vattr *va,
|
|
struct ucred *cred, struct lwp *l,
|
|
/*out*/ CodaFid *VFid, struct vattr *ova)
|
|
{
|
|
DECL(coda_mkdir); /* sets Isize & Osize */
|
|
coda_mkdir_size += len + 1;
|
|
ALLOC(coda_mkdir); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_MKDIR, cred, l);
|
|
inp->Fid = *fid;
|
|
CNV_V2VV_ATTR(&inp->attr, va);
|
|
|
|
inp->name = Isize;
|
|
STRCPY(name, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
*VFid = outp->Fid;
|
|
CNV_VV2V_ATTR(ova, &outp->attr);
|
|
}
|
|
|
|
CODA_FREE(inp, coda_mkdir_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_rmdir(void *mdp, CodaFid *fid,
|
|
const char *nm, int len,
|
|
struct ucred *cred, struct lwp *l)
|
|
{
|
|
DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */
|
|
coda_rmdir_size += len + 1;
|
|
ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_RMDIR, cred, l);
|
|
inp->Fid = *fid;
|
|
|
|
inp->name = Isize;
|
|
STRCPY(name, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_rmdir_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_symlink(void *mdp, CodaFid *fid,
|
|
const char *lnm, int llen, const char *nm, int len, struct vattr *va,
|
|
struct ucred *cred, struct lwp *l)
|
|
{
|
|
DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */
|
|
coda_symlink_size += llen + 1 + len + 1;
|
|
ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_SYMLINK, cred, l);
|
|
inp->Fid = *fid;
|
|
CNV_V2VV_ATTR(&inp->attr, va);
|
|
|
|
inp->srcname = Isize;
|
|
STRCPY(srcname, lnm, llen); /* increments Isize */
|
|
|
|
inp->tname = Isize;
|
|
STRCPY(tname, nm, len); /* increments Isize */
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
|
|
CODA_FREE(inp, coda_symlink_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_readdir(void *mdp, CodaFid *fid,
|
|
int count, int offset,
|
|
struct ucred *cred, struct lwp *l,
|
|
/*out*/ char *buffer, int *len)
|
|
{
|
|
DECL(coda_readdir); /* sets Isize & Osize */
|
|
coda_readdir_size = VC_MAXMSGSIZE;
|
|
ALLOC(coda_readdir); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_READDIR, cred, l);
|
|
inp->Fid = *fid;
|
|
inp->count = count;
|
|
inp->offset = offset;
|
|
|
|
Osize = VC_MAXMSGSIZE;
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
bcopy((char *)outp + (int)(long)outp->data, buffer, outp->size);
|
|
*len = outp->size;
|
|
}
|
|
|
|
CODA_FREE(inp, coda_readdir_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_statfs(void *mdp, struct ucred *cred, struct lwp *l,
|
|
/*out*/ struct coda_statfs *fsp)
|
|
{
|
|
DECL(coda_statfs); /* sets Isize & Osize */
|
|
ALLOC(coda_statfs); /* sets inp & outp */
|
|
|
|
/* send the open to venus. */
|
|
INIT_IN_L(&inp->ih, CODA_STATFS, cred, l);
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
*fsp = outp->stat;
|
|
}
|
|
|
|
CODA_FREE(inp, coda_statfs_size);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
venus_fhtovp(void *mdp, CodaFid *fid,
|
|
struct ucred *cred, struct proc *p,
|
|
/*out*/ CodaFid *VFid, int *vtype)
|
|
{
|
|
DECL(coda_vget); /* sets Isize & Osize */
|
|
ALLOC(coda_vget); /* sets inp & outp */
|
|
|
|
/* Send the open to Venus. */
|
|
INIT_IN(&inp->ih, CODA_VGET, cred, p);
|
|
inp->Fid = *fid;
|
|
|
|
error = coda_call(mdp, Isize, &Osize, (char *)inp);
|
|
KASSERT(outp != NULL);
|
|
if (!error) {
|
|
*VFid = outp->Fid;
|
|
*vtype = outp->vtype;
|
|
}
|
|
|
|
CODA_FREE(inp, coda_vget_size);
|
|
return error;
|
|
}
|