OpenSolaris_b135/cmd/ndmpd/ndmp/ndmpd_connect.c
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* BSD 3 Clause License
*
* Copyright (c) 2007, The Storage Networking Industry Association.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of The Storage Networking Industry Association (SNIA)
* nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* Copyright (c) 2007, The Storage Networking Industry Association. */
/* Copyright (c) 1996, 1997 PDC, Network Appliance. All Rights Reserved */
#include <sys/types.h>
#include <errno.h>
#include <pwd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/queue.h>
#include <arpa/inet.h>
#include <md5.h>
#include <shadow.h>
#include <crypt.h>
#include <alloca.h>
#include "ndmpd_common.h"
#include "ndmpd.h"
#include <libndmp.h>
#include <ndmpd_door.h>
#include <security/pam_appl.h>
static int ndmpd_connect_auth_text(char *uname, char *auth_id,
char *auth_password);
static int ndmpd_connect_auth_md5(char *uname, char *auth_id, char *auth_digest,
unsigned char *auth_challenge);
static struct conn_list *ndmp_connect_list_find(ndmp_connection_t *connection);
static void create_md5_digest(unsigned char *digest, char *passwd,
unsigned char *challenge);
static struct conn_list *ndmp_connect_list_find_id(int id);
/* routines for connection info */
void ndmp_connect_list_get(ndmp_door_ctx_t *enc_ctx);
static void connection_get(struct conn_list *clp, ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_conn(struct conn_list *clp,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_v2(ndmp_connection_t *connection,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_scsi_v2(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_tape_v2(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_mover_v2(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_data_v2(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_v3(ndmp_connection_t *connection,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_mover_v3(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
static void ndmp_connect_get_data_v3(ndmpd_session_t *session,
ndmp_door_ctx_t *enc_ctx);
void ndmpd_get_devs(ndmp_door_ctx_t *enc_ctx);
#ifndef LIST_FOREACH
#define LIST_FOREACH(var, head, field) \
for ((var) = (head)->lh_first; (var); (var) = (var)->field.le_next)
#endif /* LIST_FOREACH */
/*
* List of active connections.
*/
struct conn_list {
LIST_ENTRY(conn_list) cl_q;
int cl_id;
ndmp_connection_t *cl_conn;
};
LIST_HEAD(cl_head, conn_list);
/*
* Head of the active connections.
*/
static struct cl_head cl_head;
mutex_t cl_mutex = DEFAULTMUTEX;
/*
* Set this variable to non-zero to print verbose information.
*/
int ndmp_connect_print_verbose = 0;
/*
* ************************************************************************
* NDMP V2 HANDLERS
* ************************************************************************
*/
/*
* ndmpd_connect_open_v2
*
* This handler sets the protocol version to be used on the connection.
*
* Parameters:
* connection (input) - connection handle.
* body (input) - request message body.
*
* Returns:
* void
*/
void
ndmpd_connect_open_v2(ndmp_connection_t *connection, void *body)
{
ndmp_connect_open_request *request = (ndmp_connect_open_request *)body;
ndmp_connect_open_reply reply;
ndmpd_session_t *session;
reply.error = NDMP_NO_ERR;
if (!(session = (ndmpd_session_t *)ndmp_get_client_data(connection)))
return;
if (session->ns_mover.md_state != NDMP_MOVER_STATE_IDLE ||
session->ns_data.dd_state != NDMP_DATA_STATE_IDLE)
reply.error = NDMP_ILLEGAL_STATE_ERR;
else if (request->protocol_version > ndmp_ver)
reply.error = NDMP_ILLEGAL_ARGS_ERR;
ndmp_send_reply(connection, (void *) &reply,
"sending connect_open reply");
/*
* Set the protocol version.
* Must wait until after sending the reply since the reply
* must be sent using the same protocol version that was used
* to process the request.
*/
if (reply.error == NDMP_NO_ERR) {
NDMP_LOG(LOG_DEBUG, "set ver to: %d",
request->protocol_version);
ndmp_set_version(connection, request->protocol_version);
session->ns_protocol_version = request->protocol_version;
}
}
/*
* ndmpd_connect_client_auth_v2
*
* This handler authorizes the NDMP connection.
*
* Parameters:
* connection (input) - connection handle.
* msginfo (input) - request message.
*
* Returns:
* void
*/
void
ndmpd_connect_client_auth_v2(ndmp_connection_t *connection, void *body)
{
ndmp_connect_client_auth_request *request;
ndmp_connect_client_auth_reply reply;
ndmp_auth_text *auth;
ndmpd_session_t *session;
ndmp_auth_md5 *md5;
unsigned char md5_digest[16];
char *passwd, *dec_passwd;
char *uname;
request = (ndmp_connect_client_auth_request *)body;
NDMP_LOG(LOG_DEBUG, "auth_type:%s",
request->auth_data.auth_type == NDMP_AUTH_NONE ? "None" :
(request->auth_data.auth_type == NDMP_AUTH_TEXT ? "Text" :
(request->auth_data.auth_type == NDMP_AUTH_MD5 ? "MD5" :
"Invalid")));
reply.error = NDMP_NO_ERR;
switch (request->auth_data.auth_type) {
case NDMP_AUTH_NONE:
/*
* Allow no authorization for development.
* Comment the following for a non-secure production server.
*/
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR,
"Authorization type should be md5 or cleartext.");
reply.error = NDMP_ILLEGAL_ARGS_ERR;
ndmpd_audit_connect(connection, EINVAL);
break;
case NDMP_AUTH_TEXT:
/* Check authorization. */
if ((uname = ndmpd_get_prop(NDMP_CLEARTEXT_USERNAME)) == NULL ||
*uname == 0) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR, "User name is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
}
auth = &request->auth_data.ndmp_auth_data_u.auth_text;
if (strcmp(uname, auth->user) != 0) {
NDMP_LOG(LOG_ERR,
"Authorization denied. Not a valid user.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
break;
}
passwd = ndmpd_get_prop(NDMP_CLEARTEXT_PASSWORD);
if (!passwd || !*passwd) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR,
"Cleartext password is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
} else {
dec_passwd = ndmp_base64_decode(passwd);
}
if (!dec_passwd || !*dec_passwd ||
strcmp(auth->password, dec_passwd) != 0) {
NDMP_LOG(LOG_ERR,
"Authorization denied. Invalid password.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
} else {
NDMP_LOG(LOG_DEBUG, "Authorization granted.");
}
ndmpd_audit_connect(connection, reply.error ?
ADT_FAIL_PAM + PAM_AUTH_ERR : 0);
free(dec_passwd);
break;
case NDMP_AUTH_MD5:
/* Check authorization. */
if ((uname = ndmpd_get_prop(NDMP_CRAM_MD5_USERNAME)) == NULL ||
*uname == 0) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR, "User name is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
}
md5 = &request->auth_data.ndmp_auth_data_u.auth_md5;
passwd = ndmpd_get_prop(NDMP_CRAM_MD5_PASSWORD);
if (!passwd || !*passwd) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR, "MD5 password is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
} else {
dec_passwd = ndmp_base64_decode(passwd);
}
session = ndmp_get_client_data(connection);
create_md5_digest(md5_digest, dec_passwd,
session->ns_challenge);
if (strcmp(uname, md5->user) != 0) {
NDMP_LOG(LOG_ERR,
"Authorization denied. Not a valid user.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
} else if (memcmp(md5_digest, md5->auth_digest,
sizeof (md5_digest)) != 0) {
NDMP_LOG(LOG_ERR,
"Authorization denied. Invalid password.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
} else {
NDMP_LOG(LOG_DEBUG, "Authorization granted");
}
ndmpd_audit_connect(connection, reply.error ?
ADT_FAIL_PAM + PAM_AUTH_ERR : 0);
free(dec_passwd);
break;
default:
reply.error = NDMP_ILLEGAL_ARGS_ERR;
}
if (reply.error == NDMP_NO_ERR)
ndmp_set_authorized(connection, TRUE);
else
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
}
/*
* ndmpd_connect_server_auth_v2
*
* This handler authenticates the server to the client.
*
* Parameters:
* connection (input) - connection handle.
* msginfo (input) - request message.
*
* Returns:
* void
*/
void
ndmpd_connect_server_auth_v2(ndmp_connection_t *connection, void *body)
{
ndmp_connect_server_auth_request *request;
ndmp_connect_server_auth_reply reply;
request = (ndmp_connect_server_auth_request *)body;
NDMP_LOG(LOG_DEBUG, "auth_type:%s",
request->client_attr.auth_type == NDMP_AUTH_NONE ? "None" :
(request->client_attr.auth_type == NDMP_AUTH_TEXT ? "Text" :
(request->client_attr.auth_type == NDMP_AUTH_MD5 ? "MD5" :
"Invalid")));
reply.error = NDMP_NO_ERR;
reply.auth_result.auth_type = request->client_attr.auth_type;
switch (request->client_attr.auth_type) {
case NDMP_AUTH_NONE:
break;
case NDMP_AUTH_TEXT:
reply.auth_result.ndmp_auth_data_u.auth_text.user = "ndmpd";
reply.auth_result.ndmp_auth_data_u.auth_text.password =
"ndmpsdk";
break;
case NDMP_AUTH_MD5:
reply.error = NDMP_ILLEGAL_ARGS_ERR;
break;
default:
reply.error = NDMP_ILLEGAL_ARGS_ERR;
}
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_auth reply");
}
/*
* ndmpd_connect_close_v2
*
* This handler closes the connection.
*
* Parameters:
* connection (input) - connection handle.
* msginfo (input) - request message.
*
* Returns:
* void
*/
/*ARGSUSED*/
void
ndmpd_connect_close_v2(ndmp_connection_t *connection, void *body)
{
ndmpd_session_t *session;
if ((session = (ndmpd_session_t *)ndmp_get_client_data(connection))) {
(void) ndmp_close(connection);
session->ns_eof = TRUE;
}
}
/*
* ************************************************************************
* NDMP V3 HANDLERS
* ************************************************************************
*/
/*
* ndmpd_connect_client_auth_v3
*
* This handler authorizes the NDMP connection.
*
* Parameters:
* connection (input) - connection handle.
* msginfo (input) - request message.
*
* Returns:
* void
*/
void
ndmpd_connect_client_auth_v3(ndmp_connection_t *connection, void *body)
{
ndmp_connect_client_auth_request_v3 *request;
ndmp_connect_client_auth_reply_v3 reply;
ndmp_auth_text_v3 *auth;
ndmpd_session_t *session;
ndmp_auth_md5_v3 *md5;
struct in_addr addr;
char *uname;
char *type;
request = (ndmp_connect_client_auth_request_v3 *)body;
NDMP_LOG(LOG_DEBUG, "auth_type %s",
request->auth_data.auth_type == NDMP_AUTH_NONE ? "None" :
request->auth_data.auth_type == NDMP_AUTH_TEXT ? "Text" :
request->auth_data.auth_type == NDMP_AUTH_MD5 ? "MD5" : "Invalid");
reply.error = NDMP_NO_ERR;
switch (request->auth_data.auth_type) {
case NDMP_AUTH_NONE:
type = "none";
reply.error = NDMP_NOT_SUPPORTED_ERR;
ndmpd_audit_connect(connection, ENOTSUP);
break;
case NDMP_AUTH_TEXT:
/* Check authorization. */
if ((uname = ndmpd_get_prop(NDMP_CLEARTEXT_USERNAME)) == NULL ||
*uname == 0) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR, "User name is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
}
type = "text";
auth = &request->auth_data.ndmp_auth_data_v3_u.auth_text;
reply.error = ndmpd_connect_auth_text(uname, auth->auth_id,
auth->auth_password);
ndmpd_audit_connect(connection, reply.error ?
ADT_FAIL_PAM + PAM_AUTH_ERR : 0);
break;
case NDMP_AUTH_MD5:
/* Check authorization. */
if ((uname = ndmpd_get_prop(NDMP_CRAM_MD5_USERNAME)) == NULL ||
*uname == 0) {
NDMP_LOG(LOG_ERR, "Authorization denied.");
NDMP_LOG(LOG_ERR, "User name is not set at server.");
reply.error = NDMP_NOT_AUTHORIZED_ERR;
ndmp_set_authorized(connection, FALSE);
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_client_auth reply");
ndmpd_audit_connect(connection,
ADT_FAIL_PAM + PAM_AUTH_ERR);
return;
}
type = "md5";
session = ndmp_get_client_data(connection);
md5 = &request->auth_data.ndmp_auth_data_v3_u.auth_md5;
reply.error = ndmpd_connect_auth_md5(uname, md5->auth_id,
md5->auth_digest, session->ns_challenge);
ndmpd_audit_connect(connection, reply.error ?
ADT_FAIL_PAM + PAM_AUTH_ERR : 0);
break;
default:
type = "unknown";
reply.error = NDMP_ILLEGAL_ARGS_ERR;
ndmpd_audit_connect(connection, EINVAL);
}
if (reply.error == NDMP_NO_ERR) {
ndmp_set_authorized(connection, TRUE);
} else {
ndmp_set_authorized(connection, FALSE);
if (tcp_get_peer(connection->conn_sock, &addr.s_addr,
NULL) != -1) {
NDMP_LOG(LOG_ERR,
"Authorization(%s) denied for %s.", type,
inet_ntoa(IN_ADDR(addr)));
}
}
ndmp_send_reply(connection, (void *) &reply,
"sending ndmp_connect_auth reply");
}
/*
* ndmpd_connect_close_v3
*
* Close the connection to the DMA.
* Send the SHUTDOWN message before closing the socket connection to the DMA.
*
* Parameters:
* connection (input) - connection handle.
* msginfo (input) - request message.
*
* Returns:
* void
*/
/*ARGSUSED*/
void
ndmpd_connect_close_v3(ndmp_connection_t *connection, void *body)
{
ndmpd_session_t *session;
ndmp_notify_connected_request req;
if (!(session = (ndmpd_session_t *)ndmp_get_client_data(connection)))
return;
NDMP_LOG(LOG_DEBUG, "ver: %u",
session->ns_protocol_version);
/* Send the SHUTDOWN message before closing the connection. */
req.reason = NDMP_SHUTDOWN;
req.protocol_version = session->ns_protocol_version;
req.text_reason = "Connection closed by server.";
if (ndmp_send_request(connection, NDMP_NOTIFY_CONNECTION_STATUS,
NDMP_NO_ERR, (void *) &req, 0) < 0) {
NDMP_LOG(LOG_NOTICE, "Sending connection shutdown notify");
return;
}
ndmp_close(connection);
session->ns_eof = TRUE;
}
/*
* ************************************************************************
* NDMP V4 HANDLERS
* ************************************************************************
*/
/*
* ************************************************************************
* LOCALS
* ************************************************************************
*/
/*
* create_md5_digest
*
* This function uses the MD5 message-digest algorithm described
* in RFC1321 to authenticate the client using a shared secret (password).
* The message used to compute the MD5 digest is a concatenation of password,
* null padding, the 64 byte fixed length challenge and a repeat of the
* password. The length of the null padding is chosen to result in a 128 byte
* fixed length message. The lengh of the padding can be computed as
* 64 - 2*(length of the password). The client digest is computed using the
* server challenge from the NDMP_CONFIG_GET_AUTH_ATTR reply.
*
* Parameters:
* digest (output) - 16 bytes MD5 digest
* passwd (input) - user password
* challenge (input) - 64 bytes server challenge
*
* Returns:
* void
*/
static void
create_md5_digest(unsigned char *digest, char *passwd, unsigned char *challenge)
{
char buf[130];
char *p = &buf[0];
int len, i;
MD5_CTX md;
char *pwd;
*p = 0;
pwd = passwd;
if ((len = strlen(pwd)) > MD5_PASS_LIMIT)
len = MD5_PASS_LIMIT;
(void) memcpy(p, pwd, len);
p += len;
for (i = 0; i < MD5_CHALLENGE_SIZE - 2 * len; i++)
*p++ = 0;
(void) memcpy(p, challenge, MD5_CHALLENGE_SIZE);
p += MD5_CHALLENGE_SIZE;
(void) strlcpy(p, pwd, MD5_PASS_LIMIT);
MD5Init(&md);
MD5Update(&md, buf, 128);
MD5Final(digest, &md);
}
/*
* ndmp_connect_list_find
*
* Find the element in the active connection list.
*
* Parameters:
* connection (input) - connection handler.
*
* Returns:
* NULL - error
* connection list element pointer
*/
static struct conn_list *
ndmp_connect_list_find(ndmp_connection_t *connection)
{
struct conn_list *clp;
NDMP_LOG(LOG_DEBUG, "connection: 0x%p",
connection);
LIST_FOREACH(clp, &cl_head, cl_q) {
if (clp->cl_conn == connection) {
(void) mutex_unlock(&cl_mutex);
return (clp);
}
}
return (NULL);
}
/*
* ndmpconnect_list_add
*
* Add the new connection to the list of the active connections.
*
* Parameters:
* connection (input) - connection handler.
* id (input/output) - pointer to connection id.
*
* Returns:
* 0 - success
* -1 - error
*/
int
ndmp_connect_list_add(ndmp_connection_t *connection, int *id)
{
struct conn_list *clp;
if (connection == NULL) {
NDMP_LOG(LOG_DEBUG, "Invalid argument");
return (-1);
}
if ((clp = ndmp_malloc(sizeof (struct conn_list))) == NULL)
return (-1);
clp->cl_conn = connection;
clp->cl_id = *id;
(void) mutex_lock(&cl_mutex);
LIST_INSERT_HEAD(&cl_head, clp, cl_q);
(*id)++;
(void) mutex_unlock(&cl_mutex);
return (0);
}
/*
* ndmp_connect_list_del
*
* Delete the specified connection from the list.
*
* Parameters:
* connection (input) - connection handler.
*
* Returns:
* 0 - success
* -1 - error
*/
int
ndmp_connect_list_del(ndmp_connection_t *connection)
{
struct conn_list *clp;
(void) mutex_lock(&cl_mutex);
if (!(clp = ndmp_connect_list_find(connection))) {
(void) mutex_unlock(&cl_mutex);
NDMP_LOG(LOG_DEBUG, "connection not found");
return (-1);
}
LIST_REMOVE(clp, cl_q);
(void) mutex_unlock(&cl_mutex);
free(clp);
return (0);
}
/*
* ndmpconnect_list_find_id
*
* Find the element specified by its id in the list of active connections.
*
* Parameters:
* id (input) - connection id.
*
* Returns:
* NULL - error
* connection list element pointer
*/
static struct conn_list *
ndmp_connect_list_find_id(int id)
{
struct conn_list *clp;
NDMP_LOG(LOG_DEBUG, "id: %d", id);
(void) mutex_lock(&cl_mutex);
LIST_FOREACH(clp, &cl_head, cl_q) {
if (clp->cl_id == id) {
(void) mutex_unlock(&cl_mutex);
return (clp);
}
}
(void) mutex_unlock(&cl_mutex);
return (NULL);
}
/*
* Get common fields of the active connection.
*/
static void
ndmp_connect_get_conn(struct conn_list *clp, ndmp_door_ctx_t *enc_ctx)
{
int port;
struct in_addr addr;
char cl_addr[NDMP_CL_ADDR_LEN];
ndmpd_session_t *session;
if (!(session = (ndmpd_session_t *)ndmp_get_client_data(clp->cl_conn)))
return;
ndmp_door_put_int32(enc_ctx, clp->cl_id);
ndmp_door_put_int32(enc_ctx, session->ns_protocol_version);
ndmp_door_put_int32(enc_ctx, clp->cl_conn->conn_authorized);
ndmp_door_put_int32(enc_ctx, session->ns_eof);
if (tcp_get_peer(clp->cl_conn->conn_sock, &(addr.s_addr), &port) != -1)
(void) snprintf(cl_addr, NDMP_CL_ADDR_LEN, "%s:%d",
(char *)inet_ntoa(addr), port);
else
cl_addr[0] = '\0';
ndmp_door_put_string(enc_ctx, cl_addr);
}
/*
* Get the connection SCSI info.
*/
static void
ndmp_connect_get_scsi_v2(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
ndmp_door_put_int32(enc_ctx, session->ns_scsi.sd_is_open);
ndmp_door_put_string(enc_ctx, session->ns_scsi.sd_adapter_name);
ndmp_door_put_int32(enc_ctx, session->ns_scsi.sd_valid_target_set);
if (session->ns_scsi.sd_valid_target_set) {
ndmp_door_put_int32(enc_ctx, session->ns_scsi.sd_sid);
ndmp_door_put_int32(enc_ctx, session->ns_scsi.sd_lun);
}
}
/*
* Get the connection tape info.
*/
static void
ndmp_connect_get_tape_v2(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
char dev_name[NDMP_TAPE_DEV_NAME];
ndmp_door_put_int32(enc_ctx, session->ns_tape.td_fd);
if (session->ns_tape.td_fd != -1) {
ndmp_door_put_uint64(enc_ctx, session->ns_tape.td_record_count);
ndmp_door_put_int32(enc_ctx, session->ns_tape.td_mode);
(void) snprintf(dev_name, NDMP_TAPE_DEV_NAME, "%st%02x%x",
session->ns_tape.td_adapter_name, session->ns_tape.td_sid,
session->ns_tape.td_lun);
ndmp_door_put_string(enc_ctx, dev_name);
ndmp_door_put_string(enc_ctx, session->ns_tape.td_adapter_name);
ndmp_door_put_int32(enc_ctx, session->ns_tape.td_sid);
ndmp_door_put_int32(enc_ctx, session->ns_tape.td_lun);
}
}
/*
* Get the connection mover info.
*/
static void
ndmp_connect_get_mover_v2(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_state);
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_mode);
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_pause_reason);
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_halt_reason);
ndmp_door_put_uint64(enc_ctx, session->ns_mover.md_record_size);
ndmp_door_put_uint64(enc_ctx, session->ns_mover.md_record_num);
ndmp_door_put_uint64(enc_ctx, session->ns_mover.md_position);
ndmp_door_put_uint64(enc_ctx, session->ns_mover.md_window_offset);
ndmp_door_put_uint64(enc_ctx, session->ns_mover.md_window_length);
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_sock);
}
/*
* Get the connection common data info.
*/
static void
ndmp_connect_get_data_common(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
int i;
ndmp_pval *ep;
int len;
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_operation);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_state);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_halt_reason);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_sock);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_mover.addr_type);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_abort);
ndmp_door_put_uint64(enc_ctx, session->ns_data.dd_read_offset);
ndmp_door_put_uint64(enc_ctx, session->ns_data.dd_read_length);
ndmp_door_put_uint64(enc_ctx, session->ns_data.dd_data_size);
/* verify data.env has as much data as in session->ns_data.dd_env_len */
len = 0;
ep = session->ns_data.dd_env;
for (i = 0; ep && i < session->ns_data.dd_env_len; i++, ep++)
len++;
/* put the len */
(void) mutex_lock(&session->ns_lock);
ndmp_door_put_uint64(enc_ctx, len);
ep = session->ns_data.dd_env;
for (i = 0; i < len; i++, ep++) {
ndmp_door_put_string(enc_ctx, ep->name);
ndmp_door_put_string(enc_ctx, ep->value);
}
(void) mutex_unlock(&session->ns_lock);
}
/*
* Get the connection data info.
*/
static void
ndmp_connect_get_data_v2(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
int i;
ndmp_name *np;
char tcp_addr[NDMP_TCP_ADDR_SIZE];
ndmp_connect_get_data_common(session, enc_ctx);
switch (session->ns_data.dd_mover.addr_type) {
case NDMP_ADDR_LOCAL:
(void) snprintf(tcp_addr, NDMP_TCP_ADDR_SIZE, "%s", "Local");
ndmp_door_put_string(enc_ctx, tcp_addr);
break;
case NDMP_ADDR_TCP:
(void) snprintf(tcp_addr, NDMP_TCP_ADDR_SIZE, "%s:%d",
(char *)inet_ntoa(IN_ADDR(
session->ns_data.dd_mover.ndmp_mover_addr_u.addr.ip_addr)),
session->ns_data.dd_mover.ndmp_mover_addr_u.addr.port);
ndmp_door_put_string(enc_ctx, tcp_addr);
break;
default:
(void) snprintf(tcp_addr, NDMP_TCP_ADDR_SIZE, "%s", "Unknown");
ndmp_door_put_string(enc_ctx, tcp_addr);
}
ndmp_door_put_uint64(enc_ctx, session->ns_data.dd_nlist_len);
np = session->ns_data.dd_nlist;
for (i = 0; np && i < (int)session->ns_data.dd_nlist_len; i++, np++) {
ndmp_door_put_string(enc_ctx, np->name);
ndmp_door_put_string(enc_ctx, np->dest);
}
}
/*
* Get V2 connection info.
*/
static void
ndmp_connect_get_v2(ndmp_connection_t *connection, ndmp_door_ctx_t *enc_ctx)
{
ndmpd_session_t *session;
if ((session = (ndmpd_session_t *)ndmp_get_client_data(connection))) {
ndmp_connect_get_scsi_v2(session, enc_ctx);
ndmp_connect_get_tape_v2(session, enc_ctx);
ndmp_connect_get_mover_v2(session, enc_ctx);
ndmp_connect_get_data_v2(session, enc_ctx);
}
}
/*
* Get the V3 connection mover info.
*/
static void
ndmp_connect_get_mover_v3(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
char tcp_addr[NDMP_TCP_ADDR_SIZE];
/* get all the V2 mover data first */
ndmp_connect_get_mover_v2(session, enc_ctx);
/* get the V3 mover data now */
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_listen_sock);
ndmp_door_put_int32(enc_ctx, session->ns_mover.md_data_addr.addr_type);
tcp_addr[0] = '\0';
(void) snprintf(tcp_addr, NDMP_TCP_ADDR_SIZE, "%s:%d",
(char *)
inet_ntoa(IN_ADDR(session->ns_mover.md_data_addr.tcp_ip_v3)),
(int)session->ns_mover.md_data_addr.tcp_port_v3);
ndmp_door_put_string(enc_ctx, tcp_addr);
}
/*
* Get the connection data info.
*/
static void
ndmp_connect_get_data_v3(ndmpd_session_t *session, ndmp_door_ctx_t *enc_ctx)
{
ulong_t i;
mem_ndmp_name_v3_t *np;
char tcp_addr[NDMP_TCP_ADDR_SIZE];
ndmp_connect_get_data_common(session, enc_ctx);
(void) snprintf(tcp_addr, NDMP_TCP_ADDR_SIZE, "%s:%d",
(char *)inet_ntoa(IN_ADDR(session->ns_data.dd_data_addr.tcp_ip_v3)),
(int)session->ns_data.dd_data_addr.tcp_port_v3);
ndmp_door_put_string(enc_ctx, tcp_addr);
ndmp_door_put_int32(enc_ctx, session->ns_data.dd_listen_sock);
ndmp_door_put_uint64(enc_ctx,
session->ns_data.dd_module.dm_stats.ms_bytes_processed);
ndmp_door_put_uint64(enc_ctx, session->ns_data.dd_nlist_len);
np = session->ns_data.dd_nlist_v3;
for (i = 0; np && i < (int)session->ns_data.dd_nlist_len; i++, np++) {
ndmp_door_put_string(enc_ctx, np->nm3_opath);
ndmp_door_put_string(enc_ctx, np->nm3_dpath);
ndmp_door_put_uint64(enc_ctx, np->nm3_node);
ndmp_door_put_uint64(enc_ctx, np->nm3_fh_info);
}
}
/*
* Get V3 connection info.
*/
static void
ndmp_connect_get_v3(ndmp_connection_t *connection, ndmp_door_ctx_t *enc_ctx)
{
ndmpd_session_t *session;
if ((session = (ndmpd_session_t *)ndmp_get_client_data(connection))) {
ndmp_connect_get_scsi_v2(session, enc_ctx);
ndmp_connect_get_tape_v2(session, enc_ctx);
ndmp_connect_get_mover_v3(session, enc_ctx);
ndmp_connect_get_data_v3(session, enc_ctx);
}
}
/*
* Get the list of all active sessions to the clients. For each version,
* call the appropriate get function.
*/
static void
connection_get(struct conn_list *clp, ndmp_door_ctx_t *enc_ctx)
{
ndmpd_session_t *session;
session = (ndmpd_session_t *)ndmp_get_client_data(clp->cl_conn);
if (!session) {
ndmp_door_put_int32(enc_ctx, NDMP_SESSION_NODATA);
return;
}
ndmp_door_put_int32(enc_ctx, NDMP_SESSION_DATA);
switch (session->ns_protocol_version) {
case NDMPV2:
ndmp_connect_get_conn(clp, enc_ctx);
ndmp_connect_get_v2(clp->cl_conn, enc_ctx);
break;
case NDMPV3:
case NDMPV4:
ndmp_connect_get_conn(clp, enc_ctx);
ndmp_connect_get_v3(clp->cl_conn, enc_ctx);
break;
default:
NDMP_LOG(LOG_DEBUG,
"Invalid session (0x%p) version 0x%x", session,
session->ns_protocol_version);
}
}
/*
* ndmpd_connect_kill
*
* Kill the connection based on its version.
*
* Parameters:
* connection (input) - connection handler.
*
* Returns:
* 0 - success
* -1 - error
*/
int
ndmpd_connect_kill(ndmp_connection_t *connection)
{
ndmpd_session_t *session;
if (!(session = (ndmpd_session_t *)ndmp_get_client_data(connection)))
return (-1);
switch (session->ns_protocol_version) {
case NDMPV2:
nlp_event_rv_set(session, -2);
nlp_event_nw(session);
ndmpd_connect_close_v2(connection, (void *)NULL);
break;
case NDMPV3:
case NDMPV4:
nlp_event_rv_set(session, -2);
nlp_event_nw(session);
ndmpd_connect_close_v3(connection, (void *)NULL);
break;
default:
NDMP_LOG(LOG_DEBUG,
"Invalid session (0x%p) version 0x%x", session,
session->ns_protocol_version);
}
return (0);
}
/*
* Get the list of all active sessions to the clients.
*/
void
ndmp_connect_list_get(ndmp_door_ctx_t *enc_ctx)
{
int n;
struct conn_list *clp;
n = 0;
(void) mutex_lock(&cl_mutex);
LIST_FOREACH(clp, &cl_head, cl_q) {
n++;
}
/* write number of connections */
ndmp_door_put_int32(enc_ctx, n);
n = 0;
LIST_FOREACH(clp, &cl_head, cl_q) {
connection_get(clp, enc_ctx);
n++;
}
(void) mutex_unlock(&cl_mutex);
}
/*
* ndmpd_connect_kill_id
*
* Find a connection by its id and kill it.
*
* Parameters:
* id (input) - connection id.
*
* Returns:
* 0 - success
* -1 - error
*/
int
ndmpd_connect_kill_id(int id)
{
struct conn_list *clp;
if (!(clp = ndmp_connect_list_find_id(id)))
return (-1);
return (ndmpd_connect_kill(clp->cl_conn));
}
/* Get the devices info */
void
ndmpd_get_devs(ndmp_door_ctx_t *enc_ctx)
{
int i, n;
sasd_drive_t *sd;
scsi_link_t *slink;
if ((n = sasd_dev_count()) == 0) {
ndmp_door_put_int32(enc_ctx, n);
NDMP_LOG(LOG_DEBUG, "No device attached.");
return;
}
ndmp_door_put_int32(enc_ctx, n);
for (i = 0; i < n; i++) {
sd = sasd_drive(i);
slink = sasd_dev_slink(i);
ndmp_door_put_int32(enc_ctx, slink->sl_type);
ndmp_door_put_string(enc_ctx, sd->sd_name);
ndmp_door_put_int32(enc_ctx, slink->sl_lun);
ndmp_door_put_int32(enc_ctx, slink->sl_sid);
ndmp_door_put_string(enc_ctx, sd->sd_vendor);
ndmp_door_put_string(enc_ctx, sd->sd_id);
ndmp_door_put_string(enc_ctx, sd->sd_rev);
ndmp_door_put_string(enc_ctx, sd->sd_serial);
ndmp_door_put_string(enc_ctx, sd->sd_wwn);
}
}
/*
* ndmpd_connect_auth_text
*
* Checks text authorization.
*
* Parameters:
* auth_id (input) - user name
* auth_password(input) - password
*
* Returns:
* NDMP_NO_ERR: on success
* Other NDMP_ error: invalid user name and password
*/
int
ndmpd_connect_auth_text(char *uname, char *auth_id, char *auth_password)
{
char *passwd, *dec_passwd;
int rv;
if (strcmp(uname, auth_id) != 0) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
passwd = ndmpd_get_prop(NDMP_CLEARTEXT_PASSWORD);
if (!passwd || !*passwd) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
dec_passwd = ndmp_base64_decode(passwd);
if (dec_passwd == NULL || *dec_passwd == 0)
rv = NDMP_NOT_AUTHORIZED_ERR;
else if (strcmp(auth_password, dec_passwd) != 0)
rv = NDMP_NOT_AUTHORIZED_ERR;
else
rv = NDMP_NO_ERR;
free(dec_passwd);
}
}
if (rv == NDMP_NO_ERR) {
NDMP_LOG(LOG_DEBUG, "Authorization granted.");
} else {
NDMP_LOG(LOG_ERR, "Authorization denied.");
}
return (rv);
}
/*
* ndmpd_connect_auth_md5
*
* Checks MD5 authorization.
*
* Parameters:
* auth_id (input) - user name
* auth_digest(input) - MD5 digest
* This is a 16 bytes digest info which is a MD5 transform of 128 bytes
* message (password + padding + server challenge + password). Server
* challenge is a 64 bytes random string per NDMP session sent out to the
* client on demand (See NDMP_CONFIG_GET_AUTH_ATTR command).
*
* Returns:
* NDMP_NO_ERR: on success
* Other NDMP_ error: invalid user name and password
*/
int
ndmpd_connect_auth_md5(char *uname, char *auth_id, char *auth_digest,
unsigned char *auth_challenge)
{
char *passwd, *dec_passwd;
unsigned char digest[16];
int rv;
if (strcmp(uname, auth_id) != 0) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
passwd = ndmpd_get_prop(NDMP_CRAM_MD5_PASSWORD);
if (passwd == NULL || *passwd == 0) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
dec_passwd = ndmp_base64_decode(passwd);
if (dec_passwd == NULL || *dec_passwd == 0) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
create_md5_digest(digest, dec_passwd,
auth_challenge);
if (memcmp(digest, auth_digest,
sizeof (digest)) != 0) {
rv = NDMP_NOT_AUTHORIZED_ERR;
} else {
rv = NDMP_NO_ERR;
}
}
free(dec_passwd);
}
}
if (rv == NDMP_NO_ERR) {
NDMP_LOG(LOG_DEBUG, "Authorization granted.");
} else {
NDMP_LOG(LOG_ERR, "Authorization denied.");
}
return (rv);
}