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/*
* dnode.c - OpenBSD node functions for lsof
*/
/*
* Copyright 1994 Purdue Research Foundation, West Lafayette, Indiana
* 47907. All rights reserved.
*
* Written by Victor A. Abell
*
* This software is not subject to any license of the American Telephone
* and Telegraph Company or the Regents of the University of California.
*
* Permission is granted to anyone to use this software for any purpose on
* any computer system, and to alter it and redistribute it freely, subject
* to the following restrictions:
*
* 1. Neither the authors nor Purdue University are responsible for any
* consequences of the use of this software.
*
* 2. The origin of this software must not be misrepresented, either by
* explicit claim or by omission. Credit to the authors and Purdue
* University must appear in documentation and sources.
*
* 3. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 4. This notice may not be removed or altered.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright 1994 Purdue Research Foundation.\nAll rights reserved.\n";
#endif
#include "common.h"
/*
* process_vnode() - process vnode
*/
void process_vnode(struct lsof_context *ctx, struct kinfo_file *file) {
enum lsof_fd_type fd_type;
int num = -1;
uint32_t flag;
int mib[3];
size_t size;
char path[PATH_MAX];
/* Alloc Lf and set fd */
switch (file->fd_fd) {
case KERN_FILE_TEXT:
fd_type = LSOF_FD_PROGRAM_TEXT;
break;
case KERN_FILE_CDIR:
fd_type = LSOF_FD_CWD;
break;
case KERN_FILE_RDIR:
fd_type = LSOF_FD_ROOT_DIR;
break;
default:
fd_type = LSOF_FD_NUMERIC;
num = file->fd_fd;
break;
}
alloc_lfile(ctx, fd_type, num);
if (file->fd_fd == KERN_FILE_CDIR) {
/*
* Save current working directory information if available
* sysctl(CTL_KERN, KERN_PROC_CWD, pid)
*/
mib[0] = CTL_KERN;
mib[1] = KERN_PROC_CWD;
mib[2] = file->p_pid;
size = sizeof(path);
if (sysctl(mib, 3, path, &size, NULL, 0) >= 0) {
(void)snpf(Namech, Namechl, "%s", path);
enter_nm(ctx, Namech);
}
}
/*
* Construct access code.
*/
if (file->fd_fd >= 0) {
if ((flag = (file->f_flag & (FREAD | FWRITE))) == FREAD)
Lf->access = LSOF_FILE_ACCESS_READ;
else if (flag == FWRITE)
Lf->access = LSOF_FILE_ACCESS_WRITE;
else if (flag == (FREAD | FWRITE))
Lf->access = LSOF_FILE_ACCESS_READ_WRITE;
}
/* Fill file size/offset */
if (file->v_type == VBLK || file->v_type == VCHR) {
/* blk/char devices have no size, only offset */
if (file->f_offset != (uint64_t)(-1)) {
Lf->off = file->f_offset;
Lf->off_def = 1;
}
} else {
Lf->off = file->f_offset;
Lf->off_def = 1;
Lf->sz = file->va_size;
Lf->sz_def = 1;
}
/* Fill inode */
Lf->inode = file->va_fileid;
Lf->inp_ty = 1;
/* Fill dev && rdef */
Lf->dev = file->va_fsid;
Lf->dev_def = 1;
if (file->v_type == VBLK || file->v_type == VCHR) {
Lf->rdev = file->va_rdev;
Lf->rdev_def = 1;
}
/* Fill type */
switch (file->v_type) {
case VREG:
Lf->ntype = N_REGLR;
Lf->type = LSOF_FILE_VNODE_VREG;
break;
case VDIR:
Lf->type = LSOF_FILE_VNODE_VDIR;
break;
case VCHR:
Lf->ntype = N_CHR;
Lf->type = LSOF_FILE_VNODE_VCHR;
break;
case VFIFO:
Lf->ntype = N_FIFO;
Lf->type = LSOF_FILE_VNODE_VFIFO;
break;
}
/* No way to read file path, request mount info */
Lf->lmi_srch = 1;
/* Fill number of links */
Lf->nlink = file->va_nlink;
Lf->nlink_def = 1;
/* Handle link count filter */
if (Nlink && (Lf->nlink < Nlink))
Lf->sf |= SELNLINK;
/* Handle name match, must be done late, because if_file_named checks
* Lf->dev etc. */
if (is_file_named(ctx, NULL, 0)) {
Lf->sf |= SELNM;
}
/* Finish */
if (Lf->sf)
link_lfile(ctx);
}
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