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-rw-r--r--qemu/net/eth.c218
1 files changed, 0 insertions, 218 deletions
diff --git a/qemu/net/eth.c b/qemu/net/eth.c
deleted file mode 100644
index 7e32d274c..000000000
--- a/qemu/net/eth.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * QEMU network structures definitions and helper functions
- *
- * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
- *
- * Developed by Daynix Computing LTD (http://www.daynix.com)
- *
- * Authors:
- * Dmitry Fleytman <dmitry@daynix.com>
- * Tamir Shomer <tamirs@daynix.com>
- * Yan Vugenfirer <yan@daynix.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "net/eth.h"
-#include "net/checksum.h"
-#include "qemu-common.h"
-#include "net/tap.h"
-
-void eth_setup_vlan_headers(struct eth_header *ehdr, uint16_t vlan_tag,
- bool *is_new)
-{
- struct vlan_header *vhdr = PKT_GET_VLAN_HDR(ehdr);
-
- switch (be16_to_cpu(ehdr->h_proto)) {
- case ETH_P_VLAN:
- case ETH_P_DVLAN:
- /* vlan hdr exists */
- *is_new = false;
- break;
-
- default:
- /* No VLAN header, put a new one */
- vhdr->h_proto = ehdr->h_proto;
- ehdr->h_proto = cpu_to_be16(ETH_P_VLAN);
- *is_new = true;
- break;
- }
- vhdr->h_tci = cpu_to_be16(vlan_tag);
-}
-
-uint8_t
-eth_get_gso_type(uint16_t l3_proto, uint8_t *l3_hdr, uint8_t l4proto)
-{
- uint8_t ecn_state = 0;
-
- if (l3_proto == ETH_P_IP) {
- struct ip_header *iphdr = (struct ip_header *) l3_hdr;
-
- if (IP_HEADER_VERSION(iphdr) == IP_HEADER_VERSION_4) {
- if (IPTOS_ECN(iphdr->ip_tos) == IPTOS_ECN_CE) {
- ecn_state = VIRTIO_NET_HDR_GSO_ECN;
- }
- if (l4proto == IP_PROTO_TCP) {
- return VIRTIO_NET_HDR_GSO_TCPV4 | ecn_state;
- } else if (l4proto == IP_PROTO_UDP) {
- return VIRTIO_NET_HDR_GSO_UDP | ecn_state;
- }
- }
- } else if (l3_proto == ETH_P_IPV6) {
- struct ip6_header *ip6hdr = (struct ip6_header *) l3_hdr;
-
- if (IP6_ECN(ip6hdr->ip6_ecn_acc) == IP6_ECN_CE) {
- ecn_state = VIRTIO_NET_HDR_GSO_ECN;
- }
-
- if (l4proto == IP_PROTO_TCP) {
- return VIRTIO_NET_HDR_GSO_TCPV6 | ecn_state;
- }
- }
-
- /* Unsupported offload */
- g_assert_not_reached();
-
- return VIRTIO_NET_HDR_GSO_NONE | ecn_state;
-}
-
-void eth_get_protocols(const uint8_t *headers,
- uint32_t hdr_length,
- bool *isip4, bool *isip6,
- bool *isudp, bool *istcp)
-{
- int proto;
- size_t l2hdr_len = eth_get_l2_hdr_length(headers);
- assert(hdr_length >= eth_get_l2_hdr_length(headers));
- *isip4 = *isip6 = *isudp = *istcp = false;
-
- proto = eth_get_l3_proto(headers, l2hdr_len);
- if (proto == ETH_P_IP) {
- *isip4 = true;
-
- struct ip_header *iphdr;
-
- assert(hdr_length >=
- eth_get_l2_hdr_length(headers) + sizeof(struct ip_header));
-
- iphdr = PKT_GET_IP_HDR(headers);
-
- if (IP_HEADER_VERSION(iphdr) == IP_HEADER_VERSION_4) {
- if (iphdr->ip_p == IP_PROTO_TCP) {
- *istcp = true;
- } else if (iphdr->ip_p == IP_PROTO_UDP) {
- *isudp = true;
- }
- }
- } else if (proto == ETH_P_IPV6) {
- uint8_t l4proto;
- size_t full_ip6hdr_len;
-
- struct iovec hdr_vec;
- hdr_vec.iov_base = (void *) headers;
- hdr_vec.iov_len = hdr_length;
-
- *isip6 = true;
- if (eth_parse_ipv6_hdr(&hdr_vec, 1, l2hdr_len,
- &l4proto, &full_ip6hdr_len)) {
- if (l4proto == IP_PROTO_TCP) {
- *istcp = true;
- } else if (l4proto == IP_PROTO_UDP) {
- *isudp = true;
- }
- }
- }
-}
-
-void
-eth_setup_ip4_fragmentation(const void *l2hdr, size_t l2hdr_len,
- void *l3hdr, size_t l3hdr_len,
- size_t l3payload_len,
- size_t frag_offset, bool more_frags)
-{
- if (eth_get_l3_proto(l2hdr, l2hdr_len) == ETH_P_IP) {
- uint16_t orig_flags;
- struct ip_header *iphdr = (struct ip_header *) l3hdr;
- uint16_t frag_off_units = frag_offset / IP_FRAG_UNIT_SIZE;
- uint16_t new_ip_off;
-
- assert(frag_offset % IP_FRAG_UNIT_SIZE == 0);
- assert((frag_off_units & ~IP_OFFMASK) == 0);
-
- orig_flags = be16_to_cpu(iphdr->ip_off) & ~(IP_OFFMASK|IP_MF);
- new_ip_off = frag_off_units | orig_flags | (more_frags ? IP_MF : 0);
- iphdr->ip_off = cpu_to_be16(new_ip_off);
- iphdr->ip_len = cpu_to_be16(l3payload_len + l3hdr_len);
- }
-}
-
-void
-eth_fix_ip4_checksum(void *l3hdr, size_t l3hdr_len)
-{
- struct ip_header *iphdr = (struct ip_header *) l3hdr;
- iphdr->ip_sum = 0;
- iphdr->ip_sum = cpu_to_be16(net_raw_checksum(l3hdr, l3hdr_len));
-}
-
-uint32_t
-eth_calc_pseudo_hdr_csum(struct ip_header *iphdr, uint16_t csl)
-{
- struct ip_pseudo_header ipph;
- ipph.ip_src = iphdr->ip_src;
- ipph.ip_dst = iphdr->ip_dst;
- ipph.ip_payload = cpu_to_be16(csl);
- ipph.ip_proto = iphdr->ip_p;
- ipph.zeros = 0;
- return net_checksum_add(sizeof(ipph), (uint8_t *) &ipph);
-}
-
-static bool
-eth_is_ip6_extension_header_type(uint8_t hdr_type)
-{
- switch (hdr_type) {
- case IP6_HOP_BY_HOP:
- case IP6_ROUTING:
- case IP6_FRAGMENT:
- case IP6_ESP:
- case IP6_AUTHENTICATION:
- case IP6_DESTINATON:
- case IP6_MOBILITY:
- return true;
- default:
- return false;
- }
-}
-
-bool eth_parse_ipv6_hdr(struct iovec *pkt, int pkt_frags,
- size_t ip6hdr_off, uint8_t *l4proto,
- size_t *full_hdr_len)
-{
- struct ip6_header ip6_hdr;
- struct ip6_ext_hdr ext_hdr;
- size_t bytes_read;
-
- bytes_read = iov_to_buf(pkt, pkt_frags, ip6hdr_off,
- &ip6_hdr, sizeof(ip6_hdr));
- if (bytes_read < sizeof(ip6_hdr)) {
- return false;
- }
-
- *full_hdr_len = sizeof(struct ip6_header);
-
- if (!eth_is_ip6_extension_header_type(ip6_hdr.ip6_nxt)) {
- *l4proto = ip6_hdr.ip6_nxt;
- return true;
- }
-
- do {
- bytes_read = iov_to_buf(pkt, pkt_frags, ip6hdr_off + *full_hdr_len,
- &ext_hdr, sizeof(ext_hdr));
- *full_hdr_len += (ext_hdr.ip6r_len + 1) * IP6_EXT_GRANULARITY;
- } while (eth_is_ip6_extension_header_type(ext_hdr.ip6r_nxt));
-
- *l4proto = ext_hdr.ip6r_nxt;
- return true;
-}