diff options
Diffstat (limited to 'qemu/roms/ipxe/src/net/fcns.c')
| -rw-r--r-- | qemu/roms/ipxe/src/net/fcns.c | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/qemu/roms/ipxe/src/net/fcns.c b/qemu/roms/ipxe/src/net/fcns.c deleted file mode 100644 index be4dfea24..000000000 --- a/qemu/roms/ipxe/src/net/fcns.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * Copyright (C) 2010 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 ); - -#include <stddef.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <byteswap.h> -#include <ipxe/interface.h> -#include <ipxe/iobuf.h> -#include <ipxe/process.h> -#include <ipxe/xfer.h> -#include <ipxe/fc.h> -#include <ipxe/fcns.h> - -/** @file - * - * Fibre Channel name server lookups - * - */ - -/** A Fibre Channel name server query */ -struct fc_ns_query { - /** Reference count */ - struct refcnt refcnt; - /** Fibre Channel exchange */ - struct interface xchg; - - /** Fibre Channel peer */ - struct fc_peer *peer; - /** Fibre Channel port */ - struct fc_port *port; - - /** Process */ - struct process process; - /** Success handler - * - * @v peer Fibre Channel peer - * @v port Fibre Channel port - * @v peer_port_id Peer port ID - * @ret rc Return status code - */ - int ( * done ) ( struct fc_peer *peer, struct fc_port *port, - struct fc_port_id *peer_port_id ); -}; - -/** - * Free name server query - * - * @v refcnt Reference count - */ -static void fc_ns_query_free ( struct refcnt *refcnt ) { - struct fc_ns_query *query = - container_of ( refcnt, struct fc_ns_query, refcnt ); - - fc_peer_put ( query->peer ); - fc_port_put ( query->port ); - free ( query ); -} - -/** - * Close name server query - * - * @v query Name server query - * @v rc Reason for close - */ -static void fc_ns_query_close ( struct fc_ns_query *query, int rc ) { - - /* Stop process */ - process_del ( &query->process ); - - /* Shut down interfaces */ - intf_shutdown ( &query->xchg, rc ); -} - -/** - * Receive name server query response - * - * @v query Name server query - * @v iobuf I/O buffer - * @v meta Data transfer metadata - * @ret rc Return status code - */ -static int fc_ns_query_deliver ( struct fc_ns_query *query, - struct io_buffer *iobuf, - struct xfer_metadata *meta __unused ) { - union fc_ns_response *resp = iobuf->data; - struct fc_port_id *peer_port_id; - int rc; - - /* Sanity check */ - if ( iob_len ( iobuf ) < sizeof ( resp->ct ) ) { - DBGC ( query, "FCNS %p received underlength response (%zd " - "bytes)\n", query, iob_len ( iobuf ) ); - rc = -EINVAL; - goto done; - } - - /* Handle response */ - switch ( ntohs ( resp->ct.code ) ) { - case FC_GS_ACCEPT: - if ( iob_len ( iobuf ) < sizeof ( resp->gid_pn ) ) { - DBGC ( query, "FCNS %p received underlength accept " - "response (%zd bytes)\n", - query, iob_len ( iobuf ) ); - rc = -EINVAL; - goto done; - } - peer_port_id = &resp->gid_pn.port_id.port_id; - DBGC ( query, "FCNS %p resolved %s to %s via %s\n", - query, fc_ntoa ( &query->peer->port_wwn ), - fc_id_ntoa ( peer_port_id ), query->port->name ); - if ( ( rc = query->done ( query->peer, query->port, - peer_port_id ) ) != 0 ) - goto done; - break; - case FC_GS_REJECT: - DBGC ( query, "FCNS %p rejected (reason %02x explanation " - "%02x)\n", query, resp->reject.ct.reason, - resp->reject.ct.explanation ); - break; - default: - DBGC ( query, "FCNS %p received invalid response code %04x\n", - query, ntohs ( resp->ct.code ) ); - rc = -ENOTSUP; - goto done; - } - - rc = 0; - done: - free_iob ( iobuf ); - fc_ns_query_close ( query, rc ); - return rc; -} - -/** - * Name server query process - * - * @v query Name server query - */ -static void fc_ns_query_step ( struct fc_ns_query *query ) { - struct xfer_metadata meta; - struct fc_ns_gid_pn_request gid_pn; - int xchg_id; - int rc; - - /* Create exchange */ - if ( ( xchg_id = fc_xchg_originate ( &query->xchg, query->port, - &fc_gs_port_id, - FC_TYPE_CT ) ) < 0 ) { - rc = xchg_id; - DBGC ( query, "FCNS %p could not create exchange: %s\n", - query, strerror ( rc ) ); - fc_ns_query_close ( query, rc ); - return; - } - - /* Construct query request */ - memset ( &gid_pn, 0, sizeof ( gid_pn ) ); - gid_pn.ct.revision = FC_CT_REVISION; - gid_pn.ct.type = FC_GS_TYPE_DS; - gid_pn.ct.subtype = FC_DS_SUBTYPE_NAME; - gid_pn.ct.code = htons ( FC_NS_GET ( FC_NS_PORT_NAME, FC_NS_PORT_ID )); - memcpy ( &gid_pn.port_wwn, &query->peer->port_wwn, - sizeof ( gid_pn.port_wwn ) ); - memset ( &meta, 0, sizeof ( meta ) ); - meta.flags = XFER_FL_OVER; - - /* Send query */ - if ( ( rc = xfer_deliver_raw_meta ( &query->xchg, &gid_pn, - sizeof ( gid_pn ), &meta ) ) != 0){ - DBGC ( query, "FCNS %p could not deliver query: %s\n", - query, strerror ( rc ) ); - fc_ns_query_close ( query, rc ); - return; - } -} - -/** Name server exchange interface operations */ -static struct interface_operation fc_ns_query_xchg_op[] = { - INTF_OP ( xfer_deliver, struct fc_ns_query *, fc_ns_query_deliver ), - INTF_OP ( intf_close, struct fc_ns_query *, fc_ns_query_close ), -}; - -/** Name server exchange interface descriptor */ -static struct interface_descriptor fc_ns_query_xchg_desc = - INTF_DESC ( struct fc_ns_query, xchg, fc_ns_query_xchg_op ); - -/** Name server process descriptor */ -static struct process_descriptor fc_ns_query_process_desc = - PROC_DESC_ONCE ( struct fc_ns_query, process, fc_ns_query_step ); - -/** - * Issue Fibre Channel name server query - * - * @v peer Fibre Channel peer - * @v port Fibre Channel port - * @ret rc Return status code - */ -int fc_ns_query ( struct fc_peer *peer, struct fc_port *port, - int ( * done ) ( struct fc_peer *peer, struct fc_port *port, - struct fc_port_id *peer_port_id ) ) { - struct fc_ns_query *query; - - /* Allocate and initialise structure */ - query = zalloc ( sizeof ( *query ) ); - if ( ! query ) - return -ENOMEM; - ref_init ( &query->refcnt, fc_ns_query_free ); - intf_init ( &query->xchg, &fc_ns_query_xchg_desc, &query->refcnt ); - process_init ( &query->process, &fc_ns_query_process_desc, - &query->refcnt ); - query->peer = fc_peer_get ( peer ); - query->port = fc_port_get ( port ); - query->done = done; - - DBGC ( query, "FCNS %p querying %s via %s\n", - query, fc_ntoa ( &query->peer->port_wwn ), port->name ); - - /* Mortalise self and return */ - ref_put ( &query->refcnt ); - return 0; -} |