mirror of
https://github.com/ipxe/ipxe
synced 2025-12-23 21:41:43 +03:00
[nfs] Add support for NFS protocol
Tested-by: Robin Smidsrød <robin@smidsrod.no> Signed-off-by: Marin Hannache <git@mareo.fr> Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Marin Hannache
committed by
Michael Brown
Michael Brown
parent
ed28c8304c
commit
30de9e8300
250
src/net/tcp/oncrpc.c
Normal file
250
src/net/tcp/oncrpc.c
Normal file
@@ -0,0 +1,250 @@
|
||||
/*
|
||||
* Copyright (C) 2013 Marin Hannache <ipxe@mareo.fr>.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of the
|
||||
* License, or any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <byteswap.h>
|
||||
#include <ipxe/socket.h>
|
||||
#include <ipxe/tcpip.h>
|
||||
#include <ipxe/in.h>
|
||||
#include <ipxe/iobuf.h>
|
||||
#include <ipxe/dhcp.h>
|
||||
#include <ipxe/xfer.h>
|
||||
#include <ipxe/open.h>
|
||||
#include <ipxe/uri.h>
|
||||
#include <ipxe/features.h>
|
||||
#include <ipxe/oncrpc.h>
|
||||
#include <ipxe/oncrpc_iob.h>
|
||||
#include <ipxe/init.h>
|
||||
#include <ipxe/settings.h>
|
||||
#include <config/general.h>
|
||||
|
||||
/** @file
|
||||
*
|
||||
* SUN ONC RPC protocol
|
||||
*
|
||||
*/
|
||||
|
||||
/** Set most significant bit to 1. */
|
||||
#define SET_LAST_FRAME( x ) ( (x) | 1 << 31 )
|
||||
#define GET_FRAME_SIZE( x ) ( (x) & ~( 1 << 31 ) )
|
||||
|
||||
#define ONCRPC_CALL 0
|
||||
#define ONCRPC_REPLY 1
|
||||
|
||||
/** AUTH NONE authentication flavor */
|
||||
struct oncrpc_cred oncrpc_auth_none = {
|
||||
.flavor = ONCRPC_AUTH_NONE,
|
||||
.length = 0
|
||||
};
|
||||
|
||||
struct setting uid_setting __setting ( SETTING_AUTH ) = {
|
||||
.name = "uid",
|
||||
.description = "User ID",
|
||||
.tag = DHCP_EB_UID,
|
||||
.type = &setting_type_uint32
|
||||
};
|
||||
|
||||
struct setting gid_setting __setting ( SETTING_AUTH ) = {
|
||||
.name = "gid",
|
||||
.description = "Group ID",
|
||||
.tag = DHCP_EB_GID,
|
||||
.type = &setting_type_uint32
|
||||
};
|
||||
|
||||
/**
|
||||
* Initialize an ONC RPC AUTH SYS credential structure
|
||||
*
|
||||
* @v auth_sys The structure to initialize
|
||||
*
|
||||
* The hostname field is filled with the value of the hostname setting, if the
|
||||
* hostname setting is empty, PRODUCT_SHORT_NAME (usually "iPXE") is used
|
||||
* instead.
|
||||
*/
|
||||
int oncrpc_init_cred_sys ( struct oncrpc_cred_sys *auth_sys ) {
|
||||
if ( ! auth_sys )
|
||||
return -EINVAL;
|
||||
|
||||
fetch_string_setting_copy ( NULL, &hostname_setting,
|
||||
&auth_sys->hostname );
|
||||
if ( ! auth_sys->hostname )
|
||||
if ( ! ( auth_sys->hostname = strdup ( PRODUCT_SHORT_NAME ) ) )
|
||||
return -ENOMEM;
|
||||
|
||||
auth_sys->uid = fetch_uintz_setting ( NULL, &uid_setting );
|
||||
auth_sys->gid = fetch_uintz_setting ( NULL, &uid_setting );
|
||||
auth_sys->aux_gid_len = 0;
|
||||
auth_sys->stamp = 0;
|
||||
|
||||
auth_sys->credential.flavor = ONCRPC_AUTH_SYS;
|
||||
auth_sys->credential.length = 16 +
|
||||
oncrpc_strlen ( auth_sys->hostname );
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepare an ONC RPC session structure to be used by the ONC RPC layer
|
||||
*
|
||||
* @v session ONC RPC session
|
||||
* @v credential Credential structure pointer
|
||||
* @v verifier Verifier structure pointer
|
||||
* @v prog_name ONC RPC program number
|
||||
* @v prog_vers ONC RPC program version number
|
||||
*/
|
||||
void oncrpc_init_session ( struct oncrpc_session *session,
|
||||
struct oncrpc_cred *credential,
|
||||
struct oncrpc_cred *verifier, uint32_t prog_name,
|
||||
uint32_t prog_vers ) {
|
||||
if ( ! session )
|
||||
return;
|
||||
|
||||
session->rpc_id = rand();
|
||||
session->credential = credential;
|
||||
session->verifier = verifier;
|
||||
session->prog_name = prog_name;
|
||||
session->prog_vers = prog_vers;
|
||||
}
|
||||
|
||||
int oncrpc_call ( struct interface *intf, struct oncrpc_session *session,
|
||||
uint32_t proc_name, const struct oncrpc_field fields[] ) {
|
||||
int rc;
|
||||
size_t frame_size;
|
||||
struct io_buffer *io_buf;
|
||||
|
||||
if ( ! session )
|
||||
return -EINVAL;
|
||||
|
||||
struct oncrpc_field header[] = {
|
||||
ONCRPC_FIELD ( int32, 0 ),
|
||||
ONCRPC_FIELD ( int32, ++session->rpc_id ),
|
||||
ONCRPC_FIELD ( int32, ONCRPC_CALL ),
|
||||
ONCRPC_FIELD ( int32, ONCRPC_VERS ),
|
||||
ONCRPC_FIELD ( int32, session->prog_name ),
|
||||
ONCRPC_FIELD ( int32, session->prog_vers ),
|
||||
ONCRPC_FIELD ( int32, proc_name ),
|
||||
ONCRPC_FIELD ( cred, session->credential ),
|
||||
ONCRPC_FIELD ( cred, session->verifier ),
|
||||
ONCRPC_FIELD_END,
|
||||
};
|
||||
|
||||
frame_size = oncrpc_compute_size ( header );
|
||||
frame_size += oncrpc_compute_size ( fields );
|
||||
|
||||
io_buf = alloc_iob ( frame_size );
|
||||
if ( ! io_buf )
|
||||
return -ENOBUFS;
|
||||
|
||||
header[0].value.int32 = SET_LAST_FRAME ( frame_size -
|
||||
sizeof ( uint32_t ) );
|
||||
|
||||
oncrpc_iob_add_fields ( io_buf, header );
|
||||
oncrpc_iob_add_fields ( io_buf, fields );
|
||||
|
||||
rc = xfer_deliver_iob ( intf, io_buf );
|
||||
if ( rc != 0 )
|
||||
free_iob ( io_buf );
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
size_t oncrpc_compute_size ( const struct oncrpc_field fields[] ) {
|
||||
|
||||
size_t i;
|
||||
size_t size = 0;
|
||||
|
||||
for ( i = 0; fields[i].type != oncrpc_none; i++ ) {
|
||||
switch ( fields[i].type ) {
|
||||
case oncrpc_int32:
|
||||
size += sizeof ( uint32_t );
|
||||
break;
|
||||
|
||||
case oncrpc_int64:
|
||||
size += sizeof ( uint64_t );
|
||||
break;
|
||||
|
||||
case oncrpc_str:
|
||||
size += oncrpc_strlen ( fields[i].value.str );
|
||||
break;
|
||||
|
||||
case oncrpc_array:
|
||||
size += oncrpc_align ( fields[i].value.array.length );
|
||||
size += sizeof ( uint32_t );
|
||||
break;
|
||||
|
||||
case oncrpc_intarray:
|
||||
size += sizeof ( uint32_t ) *
|
||||
fields[i].value.intarray.length;
|
||||
size += sizeof ( uint32_t );
|
||||
break;
|
||||
|
||||
case oncrpc_cred:
|
||||
size += fields[i].value.cred->length;
|
||||
size += 2 * sizeof ( uint32_t );
|
||||
break;
|
||||
|
||||
default:
|
||||
return size;
|
||||
}
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse an I/O buffer to extract a ONC RPC REPLY
|
||||
* @v session ONC RPC session
|
||||
* @v reply Reply structure where data will be saved
|
||||
* @v io_buf I/O buffer
|
||||
*/
|
||||
int oncrpc_get_reply ( struct oncrpc_session *session __unused,
|
||||
struct oncrpc_reply *reply, struct io_buffer *io_buf ) {
|
||||
if ( ! reply || ! io_buf )
|
||||
return -EINVAL;
|
||||
|
||||
reply->frame_size = GET_FRAME_SIZE ( oncrpc_iob_get_int ( io_buf ) );
|
||||
reply->rpc_id = oncrpc_iob_get_int ( io_buf );
|
||||
|
||||
/* iPXE has no support for handling ONC RPC call */
|
||||
if ( oncrpc_iob_get_int ( io_buf ) != ONCRPC_REPLY )
|
||||
return -ENOSYS;
|
||||
|
||||
reply->reply_state = oncrpc_iob_get_int ( io_buf );
|
||||
|
||||
if ( reply->reply_state == 0 )
|
||||
{
|
||||
/* verifier.flavor */
|
||||
oncrpc_iob_get_int ( io_buf );
|
||||
/* verifier.length */
|
||||
iob_pull ( io_buf, oncrpc_iob_get_int ( io_buf ));
|
||||
|
||||
/* We don't use the verifier in iPXE, let it be an empty
|
||||
verifier. */
|
||||
reply->verifier = &oncrpc_auth_none;
|
||||
}
|
||||
|
||||
reply->accept_state = oncrpc_iob_get_int ( io_buf );
|
||||
reply->data = io_buf;
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user