libsmbfs/smb/keychain.c

	keychain.c revision 4bff34e37def8a90f9194d81bc345c52ba20086a
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * CDDL HEADER START
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * The contents of this file are subject to the terms of the
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Common Development and Distribution License (the "License").
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * You may not use this file except in compliance with the License.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * or http://www.opensolaris.org/os/licensing.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * See the License for the specific language governing permissions
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * and limitations under the License.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * When distributing Covered Code, include this CDDL HEADER in each
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * If applicable, add the following below this CDDL HEADER, with the
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * fields enclosed by brackets "[]" replaced with your own identifying
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * information: Portions Copyright [yyyy] [name of copyright owner]
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * CDDL HEADER END
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Use is subject to license terms.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#pragma ident   "%Z%%M% %I% %E% SMI"
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * External interface to the libsmbfs/netsmb keychain
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * storage mechanism.  This interface is consumed by
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * the "smbutil" commands: login, logout, ...
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * and by the SMBFS PAM module.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <sys/types.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <errno.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <stdio.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <string.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <unistd.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <libintl.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/smb_dev.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/smb_lib.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <netsmb/smb_keychain.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow#include <cflib.h>
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/* common func. for add/del/chk */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowstatic int
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_cmn(
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    int cmd,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    uid_t uid,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    const char *dom,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    const char *usr,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    const char *pass)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    smbioc_pk_t pk;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    int err, fd;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    memset(&pk, 0, sizeof (pk));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    pk.pk_uid = uid;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    switch (cmd) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    case SMBIOC_PK_ADD:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (pass == NULL)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADPASSWD);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (strlcpy(pk.pk_pass, pass, sizeof (pk.pk_pass)) >=
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            sizeof (pk.pk_pass))
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADPASSWD);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        /* FALLTHROUGH */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    case SMBIOC_PK_CHK:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    case SMBIOC_PK_DEL:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (dom == NULL)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADDOMAIN);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (strlcpy(pk.pk_dom, dom, sizeof (pk.pk_dom)) >=
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            sizeof (pk.pk_dom))
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADDOMAIN);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (usr == NULL)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADUSER);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        if (strlcpy(pk.pk_usr, usr, sizeof (pk.pk_usr)) >=
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            sizeof (pk.pk_usr))
4bff34e37def8a90f9194d81bc345c52ba20086athurlow            return (SMB_KEYCHAIN_BADUSER);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        break;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    case SMBIOC_PK_DEL_OWNER:   /* all owned by the caller */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    case SMBIOC_PK_DEL_EVERYONE:    /* all owned by everyone */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        /*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow         * These two do not copyin any args, but we'll
4bff34e37def8a90f9194d81bc345c52ba20086athurlow         * pass &pk here anyway just so we can use the
4bff34e37def8a90f9194d81bc345c52ba20086athurlow         * common code path below.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow         */
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        break;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    default:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        return (SMB_KEYCHAIN_UNKNOWN);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    fd = smb_open_driver();
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (fd < 0) {
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        err = SMB_KEYCHAIN_NODRIVER;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        goto out;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    }
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    err = 0;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (ioctl(fd, cmd, &pk) < 0)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        err = errno;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    close(fd);
4bff34e37def8a90f9194d81bc345c52ba20086athurlowout:
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    memset(&pk, 0, sizeof (pk));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (err);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/* Add a password to the keychain. */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_add(uid_t uid, const char *dom, const char *usr,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    const char *pass)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (smbfs_keychain_cmn(SMBIOC_PK_ADD, uid, dom, usr, pass));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/* Delete a password from the keychain. */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_del(uid_t uid, const char *dom, const char *usr)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (smbfs_keychain_cmn(SMBIOC_PK_DEL, uid, dom, usr, NULL));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Check for existence of a keychain entry.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Returns 0 if it exists, else ENOENT.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_chk(const char *dom, const char *usr)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (smbfs_keychain_cmn(SMBIOC_PK_CHK, (uid_t)-1, dom, usr, NULL));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Delete all keychain entries owned by the caller.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_del_owner()
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (smbfs_keychain_cmn(SMBIOC_PK_DEL_OWNER, getuid(), 0, 0, 0));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Delete all keychain entries (regardless of onwer).
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Requires super-user privliege.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_keychain_del_everyone()
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (smbfs_keychain_cmn(SMBIOC_PK_DEL_EVERYONE, getuid(), 0, 0, 0));
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow/*
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * This is not really part of the keychain library,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * but is typically needed in code that wants to
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * provide (editable) defaults for domain/user
4bff34e37def8a90f9194d81bc345c52ba20086athurlow *
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Get default domain and user names
4bff34e37def8a90f9194d81bc345c52ba20086athurlow * Server name is optional.
4bff34e37def8a90f9194d81bc345c52ba20086athurlow */
4bff34e37def8a90f9194d81bc345c52ba20086athurlowint
4bff34e37def8a90f9194d81bc345c52ba20086athurlowsmbfs_default_dom_usr(const char *home, const char *server,
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    char *dom, int maxdom, char *usr, int maxusr)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow{
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    struct smb_ctx sctx, *ctx = &sctx;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    int err;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    err = smb_ctx_init(ctx, 0, NULL, SMBL_VC, SMBL_VC, SMB_ST_ANY);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (err)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        return (err);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (server)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        smb_ctx_setserver(ctx, server);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (home && *home)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        ctx->ct_home = (char *)home;
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    err = smb_ctx_readrc(ctx);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (err)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        return (err);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (smb_rc)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        rc_close(smb_rc);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (dom)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        strlcpy(dom, ctx->ct_ssn.ioc_workgroup, maxdom);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    if (usr)
4bff34e37def8a90f9194d81bc345c52ba20086athurlow        strlcpy(usr, ctx->ct_ssn.ioc_user, maxusr);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow
4bff34e37def8a90f9194d81bc345c52ba20086athurlow    return (0);
4bff34e37def8a90f9194d81bc345c52ba20086athurlow}