diff options
Diffstat (limited to 'qemu/roms/ipxe/src/net/icmpv6.c')
| -rw-r--r-- | qemu/roms/ipxe/src/net/icmpv6.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/qemu/roms/ipxe/src/net/icmpv6.c b/qemu/roms/ipxe/src/net/icmpv6.c deleted file mode 100644 index 8555aaf0b..000000000 --- a/qemu/roms/ipxe/src/net/icmpv6.c +++ /dev/null @@ -1,259 +0,0 @@ -/* - * Copyright (C) 2013 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 <string.h> -#include <errno.h> -#include <byteswap.h> -#include <ipxe/in.h> -#include <ipxe/iobuf.h> -#include <ipxe/tcpip.h> -#include <ipxe/ping.h> -#include <ipxe/icmpv6.h> - -/** @file - * - * ICMPv6 protocol - * - */ - -/* Disambiguate the various error causes */ -#define EHOSTUNREACH_ROUTE \ - __einfo_error ( EINFO_EHOSTUNREACH_ROUTE ) -#define EINFO_EHOSTUNREACH_ROUTE \ - __einfo_uniqify ( EINFO_EHOSTUNREACH, 0, \ - "No route to destination" ) -#define EHOSTUNREACH_PROHIBITED \ - __einfo_error ( EINFO_EHOSTUNREACH_PROHIBITED ) -#define EINFO_EHOSTUNREACH_PROHIBITED \ - __einfo_uniqify ( EINFO_EHOSTUNREACH, 1, \ - "Communication administratively prohibited" ) -#define EHOSTUNREACH_ADDRESS \ - __einfo_error ( EINFO_EHOSTUNREACH_ADDRESS ) -#define EINFO_EHOSTUNREACH_ADDRESS \ - __einfo_uniqify ( EINFO_EHOSTUNREACH, 3, \ - "Address unreachable" ) -#define EHOSTUNREACH_PORT \ - __einfo_error ( EINFO_EHOSTUNREACH_PORT ) -#define EINFO_EHOSTUNREACH_PORT \ - __einfo_uniqify ( EINFO_EHOSTUNREACH, 4, \ - "Port unreachable" ) -#define EHOSTUNREACH_CODE( code ) \ - EUNIQ ( EINFO_EHOSTUNREACH, ( (code) & 0x1f ), \ - EHOSTUNREACH_ROUTE, EHOSTUNREACH_PROHIBITED, \ - EHOSTUNREACH_ADDRESS, EHOSTUNREACH_PORT ) - -#define ETIMEDOUT_HOP \ - __einfo_error ( EINFO_ETIMEDOUT_HOP ) -#define EINFO_ETIMEDOUT_HOP \ - __einfo_uniqify ( EINFO_ETIMEDOUT, 0, \ - "Hop limit exceeded in transit" ) -#define ETIMEDOUT_REASSEMBLY \ - __einfo_error ( EINFO_ETIMEDOUT_REASSEMBLY ) -#define EINFO_ETIMEDOUT_REASSEMBLY \ - __einfo_uniqify ( EINFO_ETIMEDOUT, 1, \ - "Fragment reassembly time exceeded" ) -#define ETIMEDOUT_CODE( code ) \ - EUNIQ ( EINFO_ETIMEDOUT, ( (code) & 0x1f ), \ - ETIMEDOUT_HOP, ETIMEDOUT_REASSEMBLY ) - -#define EPROTO_BAD_HEADER \ - __einfo_error ( EINFO_EPROTO_BAD_HEADER ) -#define EINFO_EPROTO_BAD_HEADER \ - __einfo_uniqify ( EINFO_EPROTO, 0, \ - "Erroneous header field" ) -#define EPROTO_NEXT_HEADER \ - __einfo_error ( EINFO_EPROTO_NEXT_HEADER ) -#define EINFO_EPROTO_NEXT_HEADER \ - __einfo_uniqify ( EINFO_EPROTO, 1, \ - "Unrecognised next header type" ) -#define EPROTO_OPTION \ - __einfo_error ( EINFO_EPROTO_OPTION ) -#define EINFO_EPROTO_OPTION \ - __einfo_uniqify ( EINFO_EPROTO, 2, \ - "Unrecognised IPv6 option" ) -#define EPROTO_CODE( code ) \ - EUNIQ ( EINFO_EPROTO, ( (code) & 0x1f ), \ - EPROTO_BAD_HEADER, EPROTO_NEXT_HEADER, EPROTO_OPTION ) - -struct icmp_echo_protocol icmpv6_echo_protocol __icmp_echo_protocol; - -/** - * Process received ICMPv6 echo request packet - * - * @v iobuf I/O buffer - * @v netdev Network device - * @v sin6_src Source socket address - * @v sin6_dest Destination socket address - * @ret rc Return status code - */ -static int icmpv6_rx_echo_request ( struct io_buffer *iobuf, - struct net_device *netdev __unused, - struct sockaddr_in6 *sin6_src, - struct sockaddr_in6 *sin6_dest __unused ) { - struct sockaddr_tcpip *st_src = - ( ( struct sockaddr_tcpip * ) sin6_src ); - - return icmp_rx_echo_request ( iobuf, st_src, &icmpv6_echo_protocol ); -} - -/** ICMPv6 echo request handler */ -struct icmpv6_handler icmpv6_echo_request_handler __icmpv6_handler = { - .type = ICMPV6_ECHO_REQUEST, - .rx = icmpv6_rx_echo_request, -}; - -/** - * Process received ICMPv6 echo reply packet - * - * @v iobuf I/O buffer - * @v netdev Network device - * @v sin6_src Source socket address - * @v sin6_dest Destination socket address - * @ret rc Return status code - */ -static int icmpv6_rx_echo_reply ( struct io_buffer *iobuf, - struct net_device *netdev __unused, - struct sockaddr_in6 *sin6_src, - struct sockaddr_in6 *sin6_dest __unused ) { - struct sockaddr_tcpip *st_src = - ( ( struct sockaddr_tcpip * ) sin6_src ); - - return icmp_rx_echo_reply ( iobuf, st_src ); -} - -/** ICMPv6 echo reply handler */ -struct icmpv6_handler icmpv6_echo_reply_handler __icmpv6_handler = { - .type = ICMPV6_ECHO_REPLY, - .rx = icmpv6_rx_echo_reply, -}; - -/** - * Identify ICMPv6 handler - * - * @v type ICMPv6 type - * @ret handler ICMPv6 handler, or NULL if not found - */ -static struct icmpv6_handler * icmpv6_handler ( unsigned int type ) { - struct icmpv6_handler *handler; - - for_each_table_entry ( handler, ICMPV6_HANDLERS ) { - if ( handler->type == type ) - return handler; - } - return NULL; -} - -/** - * Process a received packet - * - * @v iobuf I/O buffer - * @v netdev Network device - * @v st_src Partially-filled source address - * @v st_dest Partially-filled destination address - * @v pshdr_csum Pseudo-header checksum - * @ret rc Return status code - */ -static int icmpv6_rx ( struct io_buffer *iobuf, struct net_device *netdev, - struct sockaddr_tcpip *st_src, - struct sockaddr_tcpip *st_dest, uint16_t pshdr_csum ) { - struct sockaddr_in6 *sin6_src = ( ( struct sockaddr_in6 * ) st_src ); - struct sockaddr_in6 *sin6_dest = ( ( struct sockaddr_in6 * ) st_dest ); - struct icmp_header *icmp = iobuf->data; - size_t len = iob_len ( iobuf ); - struct icmpv6_handler *handler; - unsigned int csum; - int rc; - - /* Sanity check */ - if ( len < sizeof ( *icmp ) ) { - DBGC ( netdev, "ICMPv6 packet too short at %zd bytes (min %zd " - "bytes)\n", len, sizeof ( *icmp ) ); - rc = -EINVAL; - goto done; - } - - /* Verify checksum */ - csum = tcpip_continue_chksum ( pshdr_csum, icmp, len ); - if ( csum != 0 ) { - DBGC ( netdev, "ICMPv6 checksum incorrect (is %04x, should be " - "0000)\n", csum ); - DBGC_HDA ( netdev, 0, icmp, len ); - rc = -EINVAL; - goto done; - } - - /* Identify handler */ - handler = icmpv6_handler ( icmp->type ); - if ( ! handler ) { - switch ( icmp->type ) { - case ICMPV6_DESTINATION_UNREACHABLE: - rc = -EHOSTUNREACH_CODE ( icmp->code ); - break; - case ICMPV6_PACKET_TOO_BIG: - rc = -ERANGE; - break; - case ICMPV6_TIME_EXCEEDED: - rc = -ETIMEDOUT_CODE ( icmp->code ); - break; - case ICMPV6_PARAMETER_PROBLEM: - rc = -EPROTO_CODE ( icmp->code ); - break; - default: - DBGC ( netdev, "ICMPv6 unrecognised type %d code %d\n", - icmp->type, icmp->code ); - rc = -ENOTSUP; - break; - }; - goto done; - } - - /* Pass to handler */ - if ( ( rc = handler->rx ( iob_disown ( iobuf ), netdev, sin6_src, - sin6_dest ) ) != 0 ) { - DBGC ( netdev, "ICMPv6 could not handle type %d: %s\n", - icmp->type, strerror ( rc ) ); - goto done; - } - - done: - free_iob ( iobuf ); - return rc; -} - -/** ICMPv6 TCP/IP protocol */ -struct tcpip_protocol icmpv6_protocol __tcpip_protocol = { - .name = "ICMPv6", - .rx = icmpv6_rx, - .tcpip_proto = IP_ICMP6, -}; - -/** ICMPv6 echo protocol */ -struct icmp_echo_protocol icmpv6_echo_protocol __icmp_echo_protocol = { - .family = AF_INET6, - .request = ICMPV6_ECHO_REQUEST, - .reply = ICMPV6_ECHO_REPLY, - .tcpip_protocol = &icmpv6_protocol, - .net_checksum = 1, -}; |