diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c b/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c deleted file mode 100644 index ef7ee8151..000000000 --- a/qemu/roms/ipxe/src/arch/i386/interface/vmware/guestrpc.c +++ /dev/null @@ -1,332 +0,0 @@ -/* - * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. - * - * 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. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * VMware GuestRPC mechanism - * - */ - -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <assert.h> -#include <ipxe/vmware.h> -#include <ipxe/guestrpc.h> - -/* Disambiguate the various error causes */ -#define EPROTO_OPEN __einfo_error ( EINFO_EPROTO_OPEN ) -#define EINFO_EPROTO_OPEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x00, "GuestRPC open failed" ) -#define EPROTO_COMMAND_LEN __einfo_error ( EINFO_EPROTO_COMMAND_LEN ) -#define EINFO_EPROTO_COMMAND_LEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x01, "GuestRPC command length failed" ) -#define EPROTO_COMMAND_DATA __einfo_error ( EINFO_EPROTO_COMMAND_DATA ) -#define EINFO_EPROTO_COMMAND_DATA \ - __einfo_uniqify ( EINFO_EPROTO, 0x02, "GuestRPC command data failed" ) -#define EPROTO_REPLY_LEN __einfo_error ( EINFO_EPROTO_REPLY_LEN ) -#define EINFO_EPROTO_REPLY_LEN \ - __einfo_uniqify ( EINFO_EPROTO, 0x03, "GuestRPC reply length failed" ) -#define EPROTO_REPLY_DATA __einfo_error ( EINFO_EPROTO_REPLY_DATA ) -#define EINFO_EPROTO_REPLY_DATA \ - __einfo_uniqify ( EINFO_EPROTO, 0x04, "GuestRPC reply data failed" ) -#define EPROTO_REPLY_FINISH __einfo_error ( EINFO_EPROTO_REPLY_FINISH ) -#define EINFO_EPROTO_REPLY_FINISH \ - __einfo_uniqify ( EINFO_EPROTO, 0x05, "GuestRPC reply finish failed" ) -#define EPROTO_CLOSE __einfo_error ( EINFO_EPROTO_CLOSE ) -#define EINFO_EPROTO_CLOSE \ - __einfo_uniqify ( EINFO_EPROTO, 0x06, "GuestRPC close failed" ) - -/** - * Open GuestRPC channel - * - * @ret channel Channel number, or negative error - */ -int guestrpc_open ( void ) { - uint16_t channel; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( 0, GUESTRPC_OPEN, GUESTRPC_MAGIC, - &channel, &discard_b ); - if ( status != GUESTRPC_OPEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC open failed: status %08x\n", - status ); - return -EPROTO_OPEN; - } - - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d opened\n", channel ); - return channel; -} - -/** - * Send GuestRPC command length - * - * @v channel Channel number - * @v len Command length - * @ret rc Return status code - */ -static int guestrpc_command_len ( int channel, size_t len ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_LEN, len, - &discard_d, &discard_b ); - if ( status != GUESTRPC_COMMAND_LEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " - "length %zd failed: status %08x\n", - channel, len, status ); - return -EPROTO_COMMAND_LEN; - } - - return 0; -} - -/** - * Send GuestRPC command data - * - * @v channel Channel number - * @v data Command data - * @ret rc Return status code - */ -static int guestrpc_command_data ( int channel, uint32_t data ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_COMMAND_DATA, data, - &discard_d, &discard_b ); - if ( status != GUESTRPC_COMMAND_DATA_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d send command " - "data %08x failed: status %08x\n", - channel, data, status ); - return -EPROTO_COMMAND_DATA; - } - - return 0; -} - -/** - * Receive GuestRPC reply length - * - * @v channel Channel number - * @ret reply_id Reply ID - * @ret len Reply length, or negative error - */ -static int guestrpc_reply_len ( int channel, uint16_t *reply_id ) { - uint32_t len; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_LEN, 0, - reply_id, &len ); - if ( status != GUESTRPC_REPLY_LEN_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " - "length failed: status %08x\n", channel, status ); - return -EPROTO_REPLY_LEN; - } - - return len; -} - -/** - * Receive GuestRPC reply data - * - * @v channel Channel number - * @v reply_id Reply ID - * @ret data Reply data - * @ret rc Return status code - */ -static int guestrpc_reply_data ( int channel, uint16_t reply_id, - uint32_t *data ) { - uint16_t discard_d; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_DATA, reply_id, - &discard_d, data ); - if ( status != GUESTRPC_REPLY_DATA_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d receive reply " - "%d data failed: status %08x\n", - channel, reply_id, status ); - return -EPROTO_REPLY_DATA; - } - - return 0; -} - -/** - * Finish receiving GuestRPC reply - * - * @v channel Channel number - * @v reply_id Reply ID - * @ret rc Return status code - */ -static int guestrpc_reply_finish ( int channel, uint16_t reply_id ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_REPLY_FINISH, reply_id, - &discard_d, &discard_b ); - if ( status != GUESTRPC_REPLY_FINISH_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d finish reply %d " - "failed: status %08x\n", channel, reply_id, status ); - return -EPROTO_REPLY_FINISH; - } - - return 0; -} - -/** - * Close GuestRPC channel - * - * @v channel Channel number - */ -void guestrpc_close ( int channel ) { - uint16_t discard_d; - uint32_t discard_b; - uint32_t status; - - /* Issue GuestRPC command */ - status = vmware_cmd_guestrpc ( channel, GUESTRPC_CLOSE, 0, - &discard_d, &discard_b ); - if ( status != GUESTRPC_CLOSE_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d close failed: " - "status %08x\n", channel, status ); - return; - } - - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d closed\n", channel ); -} - -/** - * Issue GuestRPC command - * - * @v channel Channel number - * @v command Command - * @v reply Reply buffer - * @v reply_len Length of reply buffer - * @ret len Length of reply, or negative error - * - * The actual length of the reply will be returned even if the buffer - * was too small. - */ -int guestrpc_command ( int channel, const char *command, char *reply, - size_t reply_len ) { - const uint8_t *command_bytes = ( ( const void * ) command ); - uint8_t *reply_bytes = ( ( void * ) reply ); - size_t command_len = strlen ( command ); - int orig_reply_len = reply_len; - uint16_t status; - uint8_t *status_bytes = ( ( void * ) &status ); - size_t status_len = sizeof ( status ); - uint32_t data; - uint16_t reply_id; - int len; - int remaining; - unsigned int i; - int rc; - - DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d issuing command:\n", - channel ); - DBGC2_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); - - /* Sanity check */ - assert ( ( reply != NULL ) || ( reply_len == 0 ) ); - - /* Send command length */ - if ( ( rc = guestrpc_command_len ( channel, command_len ) ) < 0 ) - return rc; - - /* Send command data */ - while ( command_len ) { - data = 0; - for ( i = sizeof ( data ) ; i ; i-- ) { - if ( command_len ) { - data = ( ( data & ~0xff ) | - *(command_bytes++) ); - command_len--; - } - data = ( ( data << 24 ) | ( data >> 8 ) ); - } - if ( ( rc = guestrpc_command_data ( channel, data ) ) < 0 ) - return rc; - } - - /* Receive reply length */ - if ( ( len = guestrpc_reply_len ( channel, &reply_id ) ) < 0 ) { - rc = len; - return rc; - } - - /* Receive reply */ - for ( remaining = len ; remaining > 0 ; remaining -= sizeof ( data ) ) { - if ( ( rc = guestrpc_reply_data ( channel, reply_id, - &data ) ) < 0 ) { - return rc; - } - for ( i = sizeof ( data ) ; i ; i-- ) { - if ( status_len ) { - *(status_bytes++) = ( data & 0xff ); - status_len--; - len--; - } else if ( reply_len ) { - *(reply_bytes++) = ( data & 0xff ); - reply_len--; - } - data = ( ( data << 24 ) | ( data >> 8 ) ); - } - } - - /* Finish receiving RPC reply */ - if ( ( rc = guestrpc_reply_finish ( channel, reply_id ) ) < 0 ) - return rc; - - DBGC2 ( GUESTRPC_MAGIC, "GuestRPC channel %d received reply (id %d, " - "length %d):\n", channel, reply_id, len ); - DBGC2_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); - DBGC2_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, - ( ( len < orig_reply_len ) ? len : orig_reply_len ) ); - - /* Check reply status */ - if ( status != GUESTRPC_SUCCESS ) { - DBGC ( GUESTRPC_MAGIC, "GuestRPC channel %d command failed " - "(status %04x, reply id %d, reply length %d):\n", - channel, status, reply_id, len ); - DBGC_HDA ( GUESTRPC_MAGIC, 0, command, command_len ); - DBGC_HDA ( GUESTRPC_MAGIC, 0, &status, sizeof ( status ) ); - DBGC_HDA ( GUESTRPC_MAGIC, sizeof ( status ), reply, - ( ( len < orig_reply_len ) ? len : orig_reply_len )); - return -EIO; - } - - return len; -} |