45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER START
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * The contents of this file are subject to the terms of the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Common Development and Distribution License (the "License").
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You may not use this file except in compliance with the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * or http://www.opensolaris.org/os/licensing.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * See the License for the specific language governing permissions
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * and limitations under the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * When distributing Covered Code, include this CDDL HEADER in each
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * If applicable, add the following below this CDDL HEADER, with the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * fields enclosed by brackets "[]" replaced with your own identifying
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * information: Portions Copyright [yyyy] [name of copyright owner]
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER END
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Use is subject to license terms.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#pragma ident "%Z%%M% %I% %E% SMI"
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <string.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <stdlib.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <bsm/devices.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <bsm/devalloc.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkchar *strtok_r(char *, const char *, char **);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/* externs from getdaent.c */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkextern char *trim_white(char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkextern int pack_white(char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkextern char *getdadmfield(char *, char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkextern int getdadmline(char *, int, FILE *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkextern char *_strdup_null(char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic struct _dadefbuff {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk FILE *_dadeff;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk /* pointer into /etc/security/tsol/devalloc_defaults */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_defs_t _interpdadefs;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char _interpdadefline[DA_BUFSIZE + 1];
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char *_DADEFS;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk} *__dadefbuff;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define dadeff (_df->_dadeff)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define interpdadefs (_df->_interpdadefs)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define interpdadefline (_df->_interpdadefline)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#define DADEFS_FILE (_df->_DADEFS)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic da_defs_t *dadef_interpret(char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkint dadef_matchtype(da_defs_t *, char *);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * _dadefalloc -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * allocates common buffers and structures.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns pointer to the new structure, else returns NULL on error.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic struct _dadefbuff *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk_dadefalloc(void)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = __dadefbuff;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (_df == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk _df = (struct _dadefbuff *)calloc((unsigned)1,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (unsigned)sizeof (*__dadefbuff));
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (_df == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk DADEFS_FILE = "/etc/security/tsol/devalloc_defaults";
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk __dadefbuff = _df;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (__dadefbuff);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * setdadefent -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * rewinds devalloc_defaults file to the begining.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkvoid
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpksetdadefent(void)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = _dadefalloc();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (_df == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (dadeff == NULL)
004388ebfdfe2ed7dfd2d153a876dfcc22d2c006casper dadeff = fopen(DADEFS_FILE, "rF");
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk else
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk rewind(dadeff);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * enddadefent -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * closes devalloc_defaults file.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkvoid
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkenddadefent(void)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = _dadefalloc();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (_df == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (dadeff != NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) fclose(dadeff);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk dadeff = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkvoid
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkfreedadefent(da_defs_t *da_def)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (da_def == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk _kva_free(da_def->devopts);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_def->devopts = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * getdadefent -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * When first called, returns a pointer to the first da_defs_t
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * structure in devalloc_defaults; thereafter, it returns a pointer to the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * next da_defs_t structure in the file. Thus, successive calls can be
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * used to search the entire file.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * call to getdadefent should be bracketed by setdadefent and enddadefent.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns NULL on error.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkda_defs_t *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkgetdadefent(void)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char line1[DA_BUFSIZE + 1];
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_defs_t *da_def;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = _dadefalloc();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((_df == 0) || (dadeff == NULL))
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk while (getdadmline(line1, (int)sizeof (line1), dadeff) != 0) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((da_def = dadef_interpret(line1)) == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk continue;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (da_def);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * getdadeftype -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * searches from the beginning of devalloc_defaults for the device
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * specified by its type.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * call to getdadeftype should be bracketed by setdadefent and enddadefent.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns pointer to da_defs_t for the device if it is found, else
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns NULL if device not found or in case of error.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkda_defs_t *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkgetdadeftype(char *type)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char line1[DA_BUFSIZE + 1];
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da_defs_t *da_def;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = _dadefalloc();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((type == NULL) || (_df == NULL) || (dadeff == NULL))
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk while (getdadmline(line1, (int)sizeof (line1), dadeff) != 0) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (strstr(line1, type) == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk continue;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((da_def = dadef_interpret(line1)) == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk continue;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (dadef_matchtype(da_def, type))
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (da_def);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk freedadefent(da_def);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * dadef_matchtype -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * checks if the specified da_defs_t is for the device type specified.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns 1 if match found, else, returns 0.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkint
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkdadef_matchtype(da_defs_t *da_def, char *type)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (da_def->devtype == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (0);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return ((strcmp(da_def->devtype, type) == 0));
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * dadef_interpret -
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * parses val and initializes pointers in da_defs_t.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * returns pointer to parsed da_defs_t entry, else returns NULL on error.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkstatic da_defs_t *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkdadef_interpret(char *val)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk struct _dadefbuff *_df = _dadefalloc();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int i;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char *opts;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk kva_t *kvap;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk kv_t *kvp;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (_df == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) strcpy(interpdadefline, val);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk interpdadefs.devtype = getdadmfield(interpdadefline, KV_TOKEN_DELIMIT);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk opts = getdadmfield(NULL, KV_TOKEN_DELIMIT);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk interpdadefs.devopts = NULL;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (interpdadefs.devtype == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (opts != NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk interpdadefs.devopts =
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk _str2kva(opts, KV_ASSIGN, KV_DELIMITER);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk /* remove any extraneous whitespace in the options */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((kvap = interpdadefs.devopts) != NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk for (i = 0, kvp = kvap->data; i < kvap->length; i++, kvp++) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) pack_white(kvp->key);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk (void) pack_white(kvp->value);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (&interpdadefs);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}