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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/net/udp.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/net/udp.c')
-rw-r--r--qemu/roms/ipxe/src/net/udp.c440
1 files changed, 0 insertions, 440 deletions
diff --git a/qemu/roms/ipxe/src/net/udp.c b/qemu/roms/ipxe/src/net/udp.c
deleted file mode 100644
index 0f7dfb24a..000000000
--- a/qemu/roms/ipxe/src/net/udp.c
+++ /dev/null
@@ -1,440 +0,0 @@
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <byteswap.h>
-#include <errno.h>
-#include <ipxe/tcpip.h>
-#include <ipxe/iobuf.h>
-#include <ipxe/xfer.h>
-#include <ipxe/open.h>
-#include <ipxe/uri.h>
-#include <ipxe/netdevice.h>
-#include <ipxe/udp.h>
-
-/** @file
- *
- * UDP protocol
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-/**
- * A UDP connection
- *
- */
-struct udp_connection {
- /** Reference counter */
- struct refcnt refcnt;
- /** List of UDP connections */
- struct list_head list;
-
- /** Data transfer interface */
- struct interface xfer;
-
- /** Local socket address */
- struct sockaddr_tcpip local;
- /** Remote socket address */
- struct sockaddr_tcpip peer;
-};
-
-/**
- * List of registered UDP connections
- */
-static LIST_HEAD ( udp_conns );
-
-/* Forward declatations */
-static struct interface_descriptor udp_xfer_desc;
-struct tcpip_protocol udp_protocol __tcpip_protocol;
-
-/**
- * Check if local UDP port is available
- *
- * @v port Local port number
- * @ret port Local port number, or negative error
- */
-static int udp_port_available ( int port ) {
- struct udp_connection *udp;
-
- list_for_each_entry ( udp, &udp_conns, list ) {
- if ( udp->local.st_port == htons ( port ) )
- return -EADDRINUSE;
- }
- return port;
-}
-
-/**
- * Open a UDP connection
- *
- * @v xfer Data transfer interface
- * @v peer Peer socket address, or NULL
- * @v local Local socket address, or NULL
- * @v promisc Socket is promiscuous
- * @ret rc Return status code
- */
-static int udp_open_common ( struct interface *xfer,
- struct sockaddr *peer, struct sockaddr *local,
- int promisc ) {
- struct sockaddr_tcpip *st_peer = ( struct sockaddr_tcpip * ) peer;
- struct sockaddr_tcpip *st_local = ( struct sockaddr_tcpip * ) local;
- struct udp_connection *udp;
- int port;
- int rc;
-
- /* Allocate and initialise structure */
- udp = zalloc ( sizeof ( *udp ) );
- if ( ! udp )
- return -ENOMEM;
- DBGC ( udp, "UDP %p allocated\n", udp );
- ref_init ( &udp->refcnt, NULL );
- intf_init ( &udp->xfer, &udp_xfer_desc, &udp->refcnt );
- if ( st_peer )
- memcpy ( &udp->peer, st_peer, sizeof ( udp->peer ) );
- if ( st_local )
- memcpy ( &udp->local, st_local, sizeof ( udp->local ) );
-
- /* Bind to local port */
- if ( ! promisc ) {
- port = tcpip_bind ( st_local, udp_port_available );
- if ( port < 0 ) {
- rc = port;
- DBGC ( udp, "UDP %p could not bind: %s\n",
- udp, strerror ( rc ) );
- goto err;
- }
- udp->local.st_port = htons ( port );
- DBGC ( udp, "UDP %p bound to port %d\n",
- udp, ntohs ( udp->local.st_port ) );
- }
-
- /* Attach parent interface, transfer reference to connection
- * list and return
- */
- intf_plug_plug ( &udp->xfer, xfer );
- list_add ( &udp->list, &udp_conns );
- return 0;
-
- err:
- ref_put ( &udp->refcnt );
- return rc;
-}
-
-/**
- * Open a UDP connection
- *
- * @v xfer Data transfer interface
- * @v peer Peer socket address
- * @v local Local socket address, or NULL
- * @ret rc Return status code
- */
-int udp_open ( struct interface *xfer, struct sockaddr *peer,
- struct sockaddr *local ) {
- return udp_open_common ( xfer, peer, local, 0 );
-}
-
-/**
- * Open a promiscuous UDP connection
- *
- * @v xfer Data transfer interface
- * @ret rc Return status code
- *
- * Promiscuous UDP connections are required in order to support the
- * PXE API.
- */
-int udp_open_promisc ( struct interface *xfer ) {
- return udp_open_common ( xfer, NULL, NULL, 1 );
-}
-
-/**
- * Close a UDP connection
- *
- * @v udp UDP connection
- * @v rc Reason for close
- */
-static void udp_close ( struct udp_connection *udp, int rc ) {
-
- /* Close data transfer interface */
- intf_shutdown ( &udp->xfer, rc );
-
- /* Remove from list of connections and drop list's reference */
- list_del ( &udp->list );
- ref_put ( &udp->refcnt );
-
- DBGC ( udp, "UDP %p closed\n", udp );
-}
-
-/**
- * Transmit data via a UDP connection to a specified address
- *
- * @v udp UDP connection
- * @v iobuf I/O buffer
- * @v src Source address, or NULL to use default
- * @v dest Destination address, or NULL to use default
- * @v netdev Network device, or NULL to use default
- * @ret rc Return status code
- */
-static int udp_tx ( struct udp_connection *udp, struct io_buffer *iobuf,
- struct sockaddr_tcpip *src, struct sockaddr_tcpip *dest,
- struct net_device *netdev ) {
- struct udp_header *udphdr;
- size_t len;
- int rc;
-
- /* Check we can accommodate the header */
- if ( ( rc = iob_ensure_headroom ( iobuf,
- MAX_LL_NET_HEADER_LEN ) ) != 0 ) {
- free_iob ( iobuf );
- return rc;
- }
-
- /* Fill in default values if not explicitly provided */
- if ( ! src )
- src = &udp->local;
- if ( ! dest )
- dest = &udp->peer;
-
- /* Add the UDP header */
- udphdr = iob_push ( iobuf, sizeof ( *udphdr ) );
- len = iob_len ( iobuf );
- udphdr->dest = dest->st_port;
- udphdr->src = src->st_port;
- udphdr->len = htons ( len );
- udphdr->chksum = 0;
- udphdr->chksum = tcpip_chksum ( udphdr, len );
-
- /* Dump debugging information */
- DBGC2 ( udp, "UDP %p TX %d->%d len %d\n", udp,
- ntohs ( udphdr->src ), ntohs ( udphdr->dest ),
- ntohs ( udphdr->len ) );
-
- /* Send it to the next layer for processing */
- if ( ( rc = tcpip_tx ( iobuf, &udp_protocol, src, dest, netdev,
- &udphdr->chksum ) ) != 0 ) {
- DBGC ( udp, "UDP %p could not transmit packet: %s\n",
- udp, strerror ( rc ) );
- return rc;
- }
-
- return 0;
-}
-
-/**
- * Identify UDP connection by local address
- *
- * @v local Local address
- * @ret udp UDP connection, or NULL
- */
-static struct udp_connection * udp_demux ( struct sockaddr_tcpip *local ) {
- static const struct sockaddr_tcpip empty_sockaddr = { .pad = { 0, } };
- struct udp_connection *udp;
-
- list_for_each_entry ( udp, &udp_conns, list ) {
- if ( ( ( udp->local.st_family == local->st_family ) ||
- ( udp->local.st_family == 0 ) ) &&
- ( ( udp->local.st_port == local->st_port ) ||
- ( udp->local.st_port == 0 ) ) &&
- ( ( memcmp ( udp->local.pad, local->pad,
- sizeof ( udp->local.pad ) ) == 0 ) ||
- ( memcmp ( udp->local.pad, empty_sockaddr.pad,
- sizeof ( udp->local.pad ) ) == 0 ) ) ) {
- return udp;
- }
- }
- 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 udp_rx ( struct io_buffer *iobuf,
- struct net_device *netdev __unused,
- struct sockaddr_tcpip *st_src,
- struct sockaddr_tcpip *st_dest, uint16_t pshdr_csum ) {
- struct udp_header *udphdr = iobuf->data;
- struct udp_connection *udp;
- struct xfer_metadata meta;
- size_t ulen;
- unsigned int csum;
- int rc = 0;
-
- /* Sanity check packet */
- if ( iob_len ( iobuf ) < sizeof ( *udphdr ) ) {
- DBG ( "UDP packet too short at %zd bytes (min %zd bytes)\n",
- iob_len ( iobuf ), sizeof ( *udphdr ) );
-
- rc = -EINVAL;
- goto done;
- }
- ulen = ntohs ( udphdr->len );
- if ( ulen < sizeof ( *udphdr ) ) {
- DBG ( "UDP length too short at %zd bytes "
- "(header is %zd bytes)\n", ulen, sizeof ( *udphdr ) );
- rc = -EINVAL;
- goto done;
- }
- if ( ulen > iob_len ( iobuf ) ) {
- DBG ( "UDP length too long at %zd bytes (packet is %zd "
- "bytes)\n", ulen, iob_len ( iobuf ) );
- rc = -EINVAL;
- goto done;
- }
- if ( udphdr->chksum ) {
- csum = tcpip_continue_chksum ( pshdr_csum, iobuf->data, ulen );
- if ( csum != 0 ) {
- DBG ( "UDP checksum incorrect (is %04x including "
- "checksum field, should be 0000)\n", csum );
- rc = -EINVAL;
- goto done;
- }
- }
-
- /* Parse parameters from header and strip header */
- st_src->st_port = udphdr->src;
- st_dest->st_port = udphdr->dest;
- udp = udp_demux ( st_dest );
- iob_unput ( iobuf, ( iob_len ( iobuf ) - ulen ) );
- iob_pull ( iobuf, sizeof ( *udphdr ) );
-
- /* Dump debugging information */
- DBGC2 ( udp, "UDP %p RX %d<-%d len %zd\n", udp,
- ntohs ( udphdr->dest ), ntohs ( udphdr->src ), ulen );
-
- /* Ignore if no matching connection found */
- if ( ! udp ) {
- DBG ( "No UDP connection listening on port %d\n",
- ntohs ( udphdr->dest ) );
- rc = -ENOTCONN;
- goto done;
- }
-
- /* Pass data to application */
- memset ( &meta, 0, sizeof ( meta ) );
- meta.src = ( struct sockaddr * ) st_src;
- meta.dest = ( struct sockaddr * ) st_dest;
- rc = xfer_deliver ( &udp->xfer, iob_disown ( iobuf ), &meta );
-
- done:
- free_iob ( iobuf );
- return rc;
-}
-
-struct tcpip_protocol udp_protocol __tcpip_protocol = {
- .name = "UDP",
- .rx = udp_rx,
- .tcpip_proto = IP_UDP,
-};
-
-/***************************************************************************
- *
- * Data transfer interface
- *
- ***************************************************************************
- */
-
-/**
- * Allocate I/O buffer for UDP
- *
- * @v udp UDP connection
- * @v len Payload size
- * @ret iobuf I/O buffer, or NULL
- */
-static struct io_buffer * udp_xfer_alloc_iob ( struct udp_connection *udp,
- size_t len ) {
- struct io_buffer *iobuf;
-
- iobuf = alloc_iob ( MAX_LL_NET_HEADER_LEN + len );
- if ( ! iobuf ) {
- DBGC ( udp, "UDP %p cannot allocate buffer of length %zd\n",
- udp, len );
- return NULL;
- }
- iob_reserve ( iobuf, MAX_LL_NET_HEADER_LEN );
- return iobuf;
-}
-
-/**
- * Deliver datagram as I/O buffer
- *
- * @v udp UDP connection
- * @v iobuf Datagram I/O buffer
- * @v meta Data transfer metadata
- * @ret rc Return status code
- */
-static int udp_xfer_deliver ( struct udp_connection *udp,
- struct io_buffer *iobuf,
- struct xfer_metadata *meta ) {
-
- /* Transmit data, if possible */
- return udp_tx ( udp, iobuf, ( ( struct sockaddr_tcpip * ) meta->src ),
- ( ( struct sockaddr_tcpip * ) meta->dest ),
- meta->netdev );
-}
-
-/** UDP data transfer interface operations */
-static struct interface_operation udp_xfer_operations[] = {
- INTF_OP ( xfer_deliver, struct udp_connection *, udp_xfer_deliver ),
- INTF_OP ( xfer_alloc_iob, struct udp_connection *, udp_xfer_alloc_iob ),
- INTF_OP ( intf_close, struct udp_connection *, udp_close ),
-};
-
-/** UDP data transfer interface descriptor */
-static struct interface_descriptor udp_xfer_desc =
- INTF_DESC ( struct udp_connection, xfer, udp_xfer_operations );
-
-/***************************************************************************
- *
- * Openers
- *
- ***************************************************************************
- */
-
-/** UDP IPv4 socket opener */
-struct socket_opener udp_ipv4_socket_opener __socket_opener = {
- .semantics = UDP_SOCK_DGRAM,
- .family = AF_INET,
- .open = udp_open,
-};
-
-/** UDP IPv6 socket opener */
-struct socket_opener udp_ipv6_socket_opener __socket_opener = {
- .semantics = UDP_SOCK_DGRAM,
- .family = AF_INET6,
- .open = udp_open,
-};
-
-/** Linkage hack */
-int udp_sock_dgram = UDP_SOCK_DGRAM;
-
-/**
- * Open UDP URI
- *
- * @v xfer Data transfer interface
- * @v uri URI
- * @ret rc Return status code
- */
-static int udp_open_uri ( struct interface *xfer, struct uri *uri ) {
- struct sockaddr_tcpip peer;
-
- /* Sanity check */
- if ( ! uri->host )
- return -EINVAL;
-
- memset ( &peer, 0, sizeof ( peer ) );
- peer.st_port = htons ( uri_port ( uri, 0 ) );
- return xfer_open_named_socket ( xfer, SOCK_DGRAM,
- ( struct sockaddr * ) &peer,
- uri->host, NULL );
-}
-
-/** UDP URI opener */
-struct uri_opener udp_uri_opener __uri_opener = {
- .scheme = "udp",
- .open = udp_open_uri,
-};