94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*
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* This file is part of the SPL: Solaris Porting Layer.
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*
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* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory
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* Written by:
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* Brian Behlendorf <behlendorf1@llnl.gov>,
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* Herb Wartens <wartens2@llnl.gov>,
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* Jim Garlick <garlick@llnl.gov>
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* UCRL-CODE-235197
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <sys/kobj.h>
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#ifdef DEBUG_SUBSYSTEM
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#undef DEBUG_SUBSYSTEM
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#endif
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#define DEBUG_SUBSYSTEM S_KOBJ
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struct _buf *
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kobj_open_file(const char *name)
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{
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struct _buf *file;
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vnode_t *vp;
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int rc;
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ENTRY;
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file = kmalloc(sizeof(_buf_t), GFP_KERNEL);
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if (file == NULL)
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RETURN((_buf_t *)-1UL);
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if ((rc = vn_open(name, UIO_SYSSPACE, FREAD, 0644, &vp, 0, 0))) {
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kfree(file);
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RETURN((_buf_t *)-1UL);
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}
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file->vp = vp;
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RETURN(file);
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} /* kobj_open_file() */
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EXPORT_SYMBOL(kobj_open_file);
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void
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kobj_close_file(struct _buf *file)
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{
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ENTRY;
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VOP_CLOSE(file->vp, 0, 0, 0, 0, 0);
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VN_RELE(file->vp);
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kfree(file);
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EXIT;
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} /* kobj_close_file() */
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EXPORT_SYMBOL(kobj_close_file);
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int
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kobj_read_file(struct _buf *file, char *buf, ssize_t size, offset_t off)
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{
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ENTRY;
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RETURN(vn_rdwr(UIO_READ, file->vp, buf, size, off,
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UIO_SYSSPACE, 0, RLIM64_INFINITY, 0, NULL));
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} /* kobj_read_file() */
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EXPORT_SYMBOL(kobj_read_file);
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int
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kobj_get_filesize(struct _buf *file, uint64_t *size)
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{
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vattr_t vap;
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int rc;
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ENTRY;
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rc = VOP_GETATTR(file->vp, &vap, 0, 0, NULL);
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if (rc)
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RETURN(rc);
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*size = vap.va_size;
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RETURN(rc);
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} /* kobj_get_filesize() */
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EXPORT_SYMBOL(kobj_get_filesize);
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