AcoSail/kernel_optimize_test
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[SK_BUFF]: unions of just one member don't get anything done, kill them

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Renaming skb->h to skb->transport_header, skb->nh to skb->network_header and
skb->mac to skb->mac_header, to match the names of the associated helpers
(skb[_[re]set]_{transport,network,mac}_header).

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-04-10 21:21:55 -07:00 committed by David S. Miller
parent cfe1fc7759
commit b0e380b1d8
46 changed files with 162 additions and 165 deletions
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17
drivers/net/arcnet/arcnet.c
View File

@ -519,9 +519,12 @@ static int arcnet_header(struct sk_buff *skb, struct net_device *dev,
* real header when we do rebuild_header.
*/
*(uint16_t *) skb_push(skb, 2) = type;
if (skb->nh.raw - skb->mac.raw != 2)
/*
* XXX: Why not use skb->mac_len?
*/
if (skb->network_header - skb->mac_header != 2)
BUGMSG(D_NORMAL, "arcnet_header: Yikes! diff (%d) is not 2!\n",
(int)(skb->nh.raw - skb->mac.raw));
(int)(skb->network_header - skb->mac_header));
return -2; /* return error -- can't transmit yet! */
}
else {
@ -554,11 +557,13 @@ static int arcnet_rebuild_header(struct sk_buff *skb)
unsigned short type;
uint8_t daddr=0;
struct ArcProto *proto;
if (skb->nh.raw - skb->mac.raw != 2) {
/*
* XXX: Why not use skb->mac_len?
*/
if (skb->network_header - skb->mac_header != 2) {
BUGMSG(D_NORMAL,
"rebuild_header: shouldn't be here! (hdrsize=%d)\n",
(int)(skb->nh.raw - skb->mac.raw));
"rebuild_header: shouldn't be here! (hdrsize=%d)\n",
(int)(skb->network_header - skb->mac_header));
return 0;
}
type = *(uint16_t *) skb_pull(skb, 2);

4
drivers/net/bonding/bond_3ad.c
View File

@ -885,7 +885,7 @@ static int ad_lacpdu_send(struct port *port)
skb->dev = slave->dev;
skb_reset_mac_header(skb);
skb->nh.raw = skb->mac.raw + ETH_HLEN;
skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = PKT_TYPE_LACPDU;
skb->priority = TC_PRIO_CONTROL;
@ -929,7 +929,7 @@ static int ad_marker_send(struct port *port, struct marker *marker)
skb->dev = slave->dev;
skb_reset_mac_header(skb);
skb->nh.raw = skb->mac.raw + ETH_HLEN;
skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = PKT_TYPE_LACPDU;
marker_header = (struct marker_header *)skb_put(skb, length);

2
drivers/net/bonding/bond_alb.c
View File

@ -896,7 +896,7 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[])
memcpy(data, &pkt, size);
skb_reset_mac_header(skb);
skb->nh.raw = skb->mac.raw + ETH_HLEN;
skb->network_header = skb->mac_header + ETH_HLEN;
skb->protocol = pkt.type;
skb->priority = TC_PRIO_CONTROL;
skb->dev = slave->dev;

2
drivers/net/wireless/hostap/hostap_80211_rx.c
View File

@ -1077,7 +1077,7 @@ void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb,
skb2->protocol = __constant_htons(ETH_P_802_3);
skb_reset_mac_header(skb2);
skb_reset_network_header(skb2);
/* skb2->nh.raw += ETH_HLEN; */
/* skb2->network_header += ETH_HLEN; */
dev_queue_xmit(skb2);
}

4
include/linux/if_vlan.h
View File

@ -275,8 +275,8 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, unsigned short
veth->h_vlan_TCI = htons(tag);
skb->protocol = __constant_htons(ETH_P_8021Q);
skb->mac.raw -= VLAN_HLEN;
skb->nh.raw -= VLAN_HLEN;
skb->mac_header -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
return skb;
}

49
include/linux/skbuff.h
View File

@ -69,8 +69,8 @@
* NONE: skb is checksummed by protocol or csum is not required.
*
* PARTIAL: device is required to csum packet as seen by hard_start_xmit
* from skb->h.raw to the end and to record the checksum
* at skb->h.raw+skb->csum.
* from skb->transport_header to the end and to record the checksum
* at skb->transport_header + skb->csum.
*
* Device must show its capabilities in dev->features, set
* at device setup time.
@ -188,8 +188,8 @@ enum {
* @dev: Device we arrived on/are leaving by
* @iif: ifindex of device we arrived on
* @h: Transport layer header
* @nh: Network layer header
* @mac: Link layer header
* @network_header: Network layer header
* @mac_header: Link layer header
* @dst: destination entry
* @sp: the security path, used for xfrm
* @cb: Control buffer. Free for use by every layer. Put private vars here
@ -236,18 +236,9 @@ struct sk_buff {
int iif;
/* 4 byte hole on 64 bit*/
union {
unsigned char *raw;
} h;
union {
unsigned char *raw;
} nh;
union {
unsigned char *raw;
} mac;
unsigned char *transport_header;
unsigned char *network_header;
unsigned char *mac_header;
struct dst_entry *dst;
struct sec_path *sp;
@ -953,68 +944,68 @@ static inline void skb_reserve(struct sk_buff *skb, int len)
static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
{
return skb->h.raw;
return skb->transport_header;
}
static inline void skb_reset_transport_header(struct sk_buff *skb)
{
skb->h.raw = skb->data;
skb->transport_header = skb->data;
}
static inline void skb_set_transport_header(struct sk_buff *skb,
const int offset)
{
skb->h.raw = skb->data + offset;
skb->transport_header = skb->data + offset;
}
static inline int skb_transport_offset(const struct sk_buff *skb)
{
return skb->h.raw - skb->data;
return skb->transport_header - skb->data;
}
static inline unsigned char *skb_network_header(const struct sk_buff *skb)
{
return skb->nh.raw;
return skb->network_header;
}
static inline void skb_reset_network_header(struct sk_buff *skb)
{
skb->nh.raw = skb->data;
skb->network_header = skb->data;
}
static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
{
skb->nh.raw = skb->data + offset;
skb->network_header = skb->data + offset;
}
static inline int skb_network_offset(const struct sk_buff *skb)
{
return skb->nh.raw - skb->data;
return skb->network_header - skb->data;
}
static inline u32 skb_network_header_len(const struct sk_buff *skb)
{
return skb->h.raw - skb->nh.raw;
return skb->transport_header - skb->network_header;
}
static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
{
return skb->mac.raw;
return skb->mac_header;
}
static inline int skb_mac_header_was_set(const struct sk_buff *skb)
{
return skb->mac.raw != NULL;
return skb->mac_header != NULL;
}
static inline void skb_reset_mac_header(struct sk_buff *skb)
{
skb->mac.raw = skb->data;
skb->mac_header = skb->data;
}
static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
{
skb->mac.raw = skb->data + offset;
skb->mac_header = skb->data + offset;
}
/*

2
net/802/psnap.c
View File

@ -59,7 +59,7 @@ static int snap_rcv(struct sk_buff *skb, struct net_device *dev,
proto = find_snap_client(skb_transport_header(skb));
if (proto) {
/* Pass the frame on. */
skb->h.raw += 5;
skb->transport_header += 5;
skb_pull_rcsum(skb, 5);
rc = proto->rcvfunc(skb, dev, &snap_packet_type, orig_dev);
} else {

2
net/8021q/vlan_dev.c
View File

@ -83,7 +83,7 @@ static inline struct sk_buff *vlan_check_reorder_header(struct sk_buff *skb)
/* Lifted from Gleb's VLAN code... */
memmove(skb->data - ETH_HLEN,
skb->data - VLAN_ETH_HLEN, 12);
skb->mac.raw += VLAN_HLEN;
skb->mac_header += VLAN_HLEN;
}
}

8
net/appletalk/ddp.c
View File

@ -1383,10 +1383,10 @@ static void atalk_route_packet(struct sk_buff *skb, struct net_device *dev,
* @pt - packet type
*
* Receive a packet (in skb) from device dev. This has come from the SNAP
* decoder, and on entry skb->h.raw is the DDP header, skb->len is the DDP
* header, skb->len is the DDP length. The physical headers have been
* extracted. PPP should probably pass frames marked as for this layer.
* [ie ARPHRD_ETHERTALK]
* decoder, and on entry skb->transport_header is the DDP header, skb->len
* is the DDP header, skb->len is the DDP length. The physical headers
* have been extracted. PPP should probably pass frames marked as for this
* layer. [ie ARPHRD_ETHERTALK]
*/
static int atalk_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev)

24
net/bridge/br_netfilter.c
View File

@ -174,7 +174,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
skb->dev = nf_bridge->physindev;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
skb->nh.raw -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
br_handle_frame_finish, 1);
@ -255,7 +255,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
else {
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(skb, VLAN_HLEN);
skb->nh.raw += VLAN_HLEN;
skb->network_header += VLAN_HLEN;
}
skb->dst->output(skb);
}
@ -325,7 +325,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
if (skb->protocol ==
htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
skb->nh.raw -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING,
skb, skb->dev, NULL,
@ -344,7 +344,7 @@ static int br_nf_pre_routing_finish(struct sk_buff *skb)
skb->dev = nf_bridge->physindev;
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
skb->nh.raw -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
br_handle_frame_finish, 1);
@ -497,7 +497,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull_rcsum(skb, VLAN_HLEN);
skb->nh.raw += VLAN_HLEN;
skb->network_header += VLAN_HLEN;
}
return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn);
}
@ -514,7 +514,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff **pskb,
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull_rcsum(skb, VLAN_HLEN);
skb->nh.raw += VLAN_HLEN;
skb->network_header += VLAN_HLEN;
}
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
@ -595,7 +595,7 @@ static int br_nf_forward_finish(struct sk_buff *skb)
}
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
skb->nh.raw -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
}
NF_HOOK_THRESH(PF_BRIDGE, NF_BR_FORWARD, skb, in,
skb->dev, br_forward_finish, 1);
@ -631,7 +631,7 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff **pskb,
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(*pskb, VLAN_HLEN);
(*pskb)->nh.raw += VLAN_HLEN;
(*pskb)->network_header += VLAN_HLEN;
}
nf_bridge = skb->nf_bridge;
@ -667,13 +667,13 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff **pskb,
if (!IS_VLAN_ARP(skb))
return NF_ACCEPT;
skb_pull(*pskb, VLAN_HLEN);
(*pskb)->nh.raw += VLAN_HLEN;
(*pskb)->network_header += VLAN_HLEN;
}
if (arp_hdr(skb)->ar_pln != 4) {
if (IS_VLAN_ARP(skb)) {
skb_push(*pskb, VLAN_HLEN);
(*pskb)->nh.raw -= VLAN_HLEN;
(*pskb)->network_header -= VLAN_HLEN;
}
return NF_ACCEPT;
}
@ -723,7 +723,7 @@ static unsigned int br_nf_local_out(unsigned int hook, struct sk_buff **pskb,
}
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_push(skb, VLAN_HLEN);
skb->nh.raw -= VLAN_HLEN;
skb->network_header -= VLAN_HLEN;
}
NF_HOOK(PF_BRIDGE, NF_BR_FORWARD, skb, realindev, skb->dev,
@ -790,7 +790,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
if (skb->protocol == htons(ETH_P_8021Q)) {
skb_pull(skb, VLAN_HLEN);
skb->nh.raw += VLAN_HLEN;
skb->network_header += VLAN_HLEN;
}
nf_bridge_save_header(skb);

6
net/core/dev.c
View File

@ -1077,7 +1077,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
skb_reset_network_header(skb2);
}
skb2->h.raw = skb2->nh.raw;
skb2->transport_header = skb2->network_header;
skb2->pkt_type = PACKET_OUTGOING;
ptype->func(skb2, skb->dev, ptype, skb->dev);
}
@ -1207,7 +1207,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
BUG_ON(skb_shinfo(skb)->frag_list);
skb_reset_mac_header(skb);
skb->mac_len = skb->nh.raw - skb->mac.raw;
skb->mac_len = skb->network_header - skb->mac_header;
__skb_pull(skb, skb->mac_len);
if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
@ -1774,7 +1774,7 @@ int netif_receive_skb(struct sk_buff *skb)
skb_reset_network_header(skb);
skb_reset_transport_header(skb);
skb->mac_len = skb->nh.raw - skb->mac.raw;
skb->mac_len = skb->network_header - skb->mac_header;
pt_prev = NULL;

16
net/core/pktgen.c
View File

@ -2358,7 +2358,7 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
}
skb_set_network_header(skb, skb->tail - skb->data);
skb->h.raw = skb->nh.raw + sizeof(struct iphdr);
skb->transport_header = skb->network_header + sizeof(struct iphdr);
skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
iph = ip_hdr(skb);
@ -2391,9 +2391,9 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
iph->check = 0;
iph->check = ip_fast_csum((void *)iph, iph->ihl);
skb->protocol = protocol;
skb->mac.raw = (skb->nh.raw - ETH_HLEN -
pkt_dev->nr_labels * sizeof(u32) -
VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->mac_header = (skb->network_header - ETH_HLEN -
pkt_dev->nr_labels * sizeof(u32) -
VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
@ -2697,7 +2697,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
}
skb_set_network_header(skb, skb->tail - skb->data);
skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
iph = ipv6_hdr(skb);
@ -2738,9 +2738,9 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr);
ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr);
skb->mac.raw = (skb->nh.raw - ETH_HLEN -
pkt_dev->nr_labels * sizeof(u32) -
VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->mac_header = (skb->network_header - ETH_HLEN -
pkt_dev->nr_labels * sizeof(u32) -
VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
skb->protocol = protocol;
skb->dev = odev;
skb->pkt_type = PACKET_HOST;

21
net/core/skbuff.c
View File

@ -396,9 +396,9 @@ struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
n->sk = NULL;
C(tstamp);
C(dev);
C(h);
C(nh);
C(mac);
C(transport_header);
C(network_header);
C(mac_header);
C(dst);
dst_clone(skb->dst);
C(sp);
@ -461,9 +461,9 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
#ifdef CONFIG_INET
new->sp = secpath_get(old->sp);
#endif
new->h.raw = old->h.raw + offset;
new->nh.raw = old->nh.raw + offset;
new->mac.raw = old->mac.raw + offset;
new->transport_header = old->transport_header + offset;
new->network_header = old->network_header + offset;
new->mac_header = old->mac_header + offset;
memcpy(new->cb, old->cb, sizeof(old->cb));
new->local_df = old->local_df;
new->fclone = SKB_FCLONE_UNAVAILABLE;
@ -639,9 +639,9 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
skb->end = data + size;
skb->data += off;
skb->tail += off;
skb->mac.raw += off;
skb->h.raw += off;
skb->nh.raw += off;
skb->transport_header += off;
skb->network_header += off;
skb->mac_header += off;
skb->cloned = 0;
skb->nohdr = 0;
atomic_set(&skb_shinfo(skb)->dataref, 1);
@ -1906,7 +1906,8 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
skb_reserve(nskb, headroom);
skb_reset_mac_header(nskb);
skb_set_network_header(nskb, skb->mac_len);
nskb->h.raw = nskb->nh.raw + skb_network_header_len(skb);
nskb->transport_header = (nskb->network_header +
skb_network_header_len(skb));
memcpy(skb_put(nskb, doffset), skb->data, doffset);
if (!sg) {

2
net/ieee80211/ieee80211_rx.c
View File

@ -793,7 +793,7 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
skb2->protocol = __constant_htons(ETH_P_802_3);
skb_reset_mac_header(skb2);
skb_reset_network_header(skb2);
/* skb2->nh.raw += ETH_HLEN; */
/* skb2->network_header += ETH_HLEN; */
dev_queue_xmit(skb2);
}
#endif

4
net/ipv4/ah4.c
View File

@ -181,9 +181,9 @@ static int ah_input(struct xfrm_state *x, struct sk_buff *skb)
}
}
((struct iphdr*)work_buf)->protocol = ah->nexthdr;
skb->nh.raw += ah_hlen;
skb->network_header += ah_hlen;
memcpy(skb_network_header(skb), work_buf, ihl);
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
__skb_pull(skb, ah_hlen + ihl);
return 0;

2
net/ipv4/igmp.c
View File

@ -333,7 +333,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
((u8*)&pip[1])[2] = 0;
((u8*)&pip[1])[3] = 0;
skb->h.raw = skb->nh.raw + sizeof(struct iphdr) + 4;
skb->transport_header = skb->network_header + sizeof(struct iphdr) + 4;
skb_put(skb, sizeof(*pig));
pig = igmpv3_report_hdr(skb);
pig->type = IGMPV3_HOST_MEMBERSHIP_REPORT;

2
net/ipv4/ip_gre.c
View File

@ -828,7 +828,7 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
old_iph = ip_hdr(skb);
}
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
skb_push(skb, gre_hlen);
skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));

11
net/ipv4/ip_output.c
View File

@ -582,7 +582,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff*))
skb_reserve(skb2, ll_rs);
skb_put(skb2, len + hlen);
skb_reset_network_header(skb2);
skb2->h.raw = skb2->nh.raw + hlen;
skb2->transport_header = skb2->network_header + hlen;
/*
* Charge the memory for the fragment to any owner
@ -713,7 +713,7 @@ static inline int ip_ufo_append_data(struct sock *sk,
skb_reset_network_header(skb);
/* initialize protocol header pointer */
skb->h.raw = skb->nh.raw + fragheaderlen;
skb->transport_header = skb->network_header + fragheaderlen;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
@ -918,7 +918,8 @@ int ip_append_data(struct sock *sk,
*/
data = skb_put(skb, fraglen);
skb_set_network_header(skb, exthdrlen);
skb->h.raw = skb->nh.raw + fragheaderlen;
skb->transport_header = (skb->network_header +
fragheaderlen);
data += fragheaderlen;
if (fraggap) {
@ -1112,8 +1113,8 @@ ssize_t ip_append_page(struct sock *sk, struct page *page,
*/
skb_put(skb, fragheaderlen + fraggap);
skb_reset_network_header(skb);
skb->h.raw = skb->nh.raw + fragheaderlen;
skb->transport_header = (skb->network_header +
fragheaderlen);
if (fraggap) {
skb->csum = skb_copy_and_csum_bits(skb_prev,
maxfraglen,

2
net/ipv4/ipcomp.c
View File

@ -87,7 +87,7 @@ static int ipcomp_input(struct xfrm_state *x, struct sk_buff *skb)
iph = ip_hdr(skb);
ipch = (void *)skb->data;
iph->protocol = ipch->nexthdr;
skb->h.raw = skb->nh.raw + sizeof(*ipch);
skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
err = ipcomp_decompress(x, skb);

4
net/ipv4/ipip.c
View File

@ -485,7 +485,7 @@ static int ipip_rcv(struct sk_buff *skb)
secpath_reset(skb);
skb->mac.raw = skb->nh.raw;
skb->mac_header = skb->network_header;
skb_reset_network_header(skb);
skb->protocol = htons(ETH_P_IP);
skb->pkt_type = PACKET_HOST;
@ -617,7 +617,7 @@ static int ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
old_iph = ip_hdr(skb);
}
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
skb_push(skb, sizeof(struct iphdr));
skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));

8
net/ipv4/ipmr.c
View File

@ -597,7 +597,7 @@ static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
msg->im_msgtype = assert;
igmp->code = 0;
ip_hdr(skb)->tot_len = htons(skb->len); /* Fix the length */
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
}
if (mroute_socket == NULL) {
@ -1102,7 +1102,7 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
struct iphdr *old_iph = ip_hdr(skb);
skb_push(skb, sizeof(struct iphdr));
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
skb_reset_network_header(skb);
iph = ip_hdr(skb);
@ -1461,7 +1461,7 @@ int pim_rcv_v1(struct sk_buff * skb)
if (reg_dev == NULL)
goto drop;
skb->mac.raw = skb->nh.raw;
skb->mac_header = skb->network_header;
skb_pull(skb, (u8*)encap - skb->data);
skb_reset_network_header(skb);
skb->dev = reg_dev;
@ -1517,7 +1517,7 @@ static int pim_rcv(struct sk_buff * skb)
if (reg_dev == NULL)
goto drop;
skb->mac.raw = skb->nh.raw;
skb->mac_header = skb->network_header;
skb_pull(skb, (u8*)encap - skb->data);
skb_reset_network_header(skb);
skb->dev = reg_dev;

4
net/ipv4/ipvs/ip_vs_xmit.c
View File

@ -323,7 +323,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
struct iphdr *old_iph = ip_hdr(skb);
u8 tos = old_iph->tos;
__be16 df = old_iph->frag_off;
unsigned char *old_h = skb_transport_header(skb);
unsigned char *old_transport_header = skb->transport_header;
struct iphdr *iph; /* Our new IP header */
int max_headroom; /* The extra header space needed */
int mtu;
@ -381,7 +381,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
old_iph = ip_hdr(skb);
}
skb->h.raw = old_h;
skb->transport_header = old_transport_header;
/* fix old IP header checksum */
ip_send_check(old_iph);

2
net/ipv4/netfilter/ipt_LOG.c
View File

@ -399,7 +399,7 @@ ipt_log_packet(unsigned int pf,
/* MAC logging for input chain only. */
printk("MAC=");
if (skb->dev && skb->dev->hard_header_len
&& skb->mac.raw != skb->nh.raw) {
&& skb->mac_header != skb->network_header) {
int i;
const unsigned char *p = skb_mac_header(skb);
for (i = 0; i < skb->dev->hard_header_len; i++,p++)

2
net/ipv4/netfilter/ipt_ULOG.c
View File

@ -251,7 +251,7 @@ static void ipt_ulog_packet(unsigned int hooknum,
*(pm->prefix) = '\0';
if (in && in->hard_header_len > 0
&& skb->mac.raw != skb->nh.raw
&& skb->mac_header != skb->network_header
&& in->hard_header_len <= ULOG_MAC_LEN) {
memcpy(pm->mac, skb_mac_header(skb), in->hard_header_len);
pm->mac_len = in->hard_header_len;

2
net/ipv4/raw.c
View File

@ -297,7 +297,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
skb->ip_summed = CHECKSUM_NONE;
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;

4
net/ipv4/xfrm4_mode_beet.c
View File

@ -33,7 +33,7 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
int hdrlen, optlen;
iph = ip_hdr(skb);
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
hdrlen = 0;
optlen = iph->ihl * 4 - sizeof(*iph);
@ -43,7 +43,7 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
skb_push(skb, x->props.header_len + hdrlen);
skb_reset_network_header(skb);
top_iph = ip_hdr(skb);
skb->h.raw += sizeof(*iph) - hdrlen;
skb->transport_header += sizeof(*iph) - hdrlen;
memmove(top_iph, iph, sizeof(*iph));
if (unlikely(optlen)) {

8
net/ipv4/xfrm4_mode_transport.c
View File

@ -26,9 +26,7 @@ static int xfrm4_transport_output(struct xfrm_state *x, struct sk_buff *skb)
struct iphdr *iph = ip_hdr(skb);
int ihl = iph->ihl * 4;
skb->h.raw = skb->nh.raw;
skb->h.raw += ihl;
skb->transport_header = skb->network_header + ihl;
skb_push(skb, x->props.header_len);
skb_reset_network_header(skb);
memmove(skb_network_header(skb), iph, ihl);
@ -47,10 +45,10 @@ static int xfrm4_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
int ihl = skb->data - skb_transport_header(skb);
if (skb->h.raw != skb->nh.raw) {
if (skb->transport_header != skb->network_header) {
memmove(skb_transport_header(skb),
skb_network_header(skb), ihl);
skb->nh.raw = skb->h.raw;
skb->network_header = skb->transport_header;
}
ip_hdr(skb)->tot_len = htons(skb->len + ihl);
skb_reset_transport_header(skb);

2
net/ipv4/xfrm4_mode_tunnel.c
View File

@ -47,7 +47,7 @@ static int xfrm4_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
int flags;
iph = ip_hdr(skb);
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
skb_push(skb, x->props.header_len);
skb_reset_network_header(skb);

8
net/ipv6/ah6.c
View File

@ -316,8 +316,8 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
*
* To erase AH:
* Keeping copy of cleared headers. After AH processing,
* Moving the pointer of skb->nh.raw by using skb_pull as long as AH
* header length. Then copy back the copy as long as hdr_len
* Moving the pointer of skb->network_header by using skb_pull as long
* as AH header length. Then copy back the copy as long as hdr_len
* If destination header following AH exists, copy it into after [Ext2].
*
* |<>|[IPv6][Ext1][Ext2][Dest][Payload]
@ -384,9 +384,9 @@ static int ah6_input(struct xfrm_state *x, struct sk_buff *skb)
}
}
skb->nh.raw += ah_hlen;
skb->network_header += ah_hlen;
memcpy(skb_network_header(skb), tmp_hdr, hdr_len);
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
__skb_pull(skb, ah_hlen + hdr_len);
kfree(tmp_hdr);

6
net/ipv6/exthdrs.c
View File

@ -306,7 +306,7 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
if (ip6_parse_tlv(tlvprocdestopt_lst, skbp)) {
dst_release(dst);
skb = *skbp;
skb->h.raw += (skb_transport_header(skb)[1] + 1) << 3;
skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
opt = IP6CB(skb);
#ifdef CONFIG_IPV6_MIP6
opt->nhoff = dstbuf;
@ -444,7 +444,7 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp)
}
opt->lastopt = opt->srcrt = skb_network_header_len(skb);
skb->h.raw += (hdr->hdrlen + 1) << 3;
skb->transport_header += (hdr->hdrlen + 1) << 3;
opt->dst0 = opt->dst1;
opt->dst1 = 0;
opt->nhoff = (&hdr->nexthdr) - skb_network_header(skb);
@ -752,7 +752,7 @@ int ipv6_parse_hopopts(struct sk_buff **skbp)
opt->hop = sizeof(struct ipv6hdr);
if (ip6_parse_tlv(tlvprochopopt_lst, skbp)) {
skb = *skbp;
skb->h.raw += (skb_transport_header(skb)[1] + 1) << 3;
skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
opt = IP6CB(skb);
opt->nhoff = sizeof(struct ipv6hdr);
return 1;

2
net/ipv6/ip6_input.c
View File

@ -101,7 +101,7 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if (hdr->version != 6)
goto err;
skb->h.raw = skb->nh.raw + sizeof(*hdr);
skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
pkt_len = ntohs(hdr->payload_len);

11
net/ipv6/ip6_output.c
View File

@ -733,7 +733,8 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
skb_put(frag, len + hlen + sizeof(struct frag_hdr));
skb_reset_network_header(frag);
fh = (struct frag_hdr *)(skb_network_header(frag) + hlen);
frag->h.raw = frag->nh.raw + hlen + sizeof(struct frag_hdr);
frag->transport_header = (frag->network_header + hlen +
sizeof(struct frag_hdr));
/*
* Charge the memory for the fragment to any owner
@ -761,7 +762,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
/*
* Copy a block of the IP datagram.
*/
if (skb_copy_bits(skb, ptr, frag->h.raw, len))
if (skb_copy_bits(skb, ptr, skb_transport_header(skb), len))
BUG();
left -= len;
@ -976,7 +977,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
skb_reset_network_header(skb);
/* initialize protocol header pointer */
skb->h.raw = skb->nh.raw + fragheaderlen;
skb->transport_header = skb->network_header + fragheaderlen;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum = 0;
@ -1198,8 +1199,8 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
data = skb_put(skb, fraglen);
skb_set_network_header(skb, exthdrlen);
data += fragheaderlen;
skb->h.raw = skb->nh.raw + fragheaderlen;
skb->transport_header = (skb->network_header +
fragheaderlen);
if (fraggap) {
skb->csum = skb_copy_and_csum_bits(
skb_prev, maxfraglen,

4
net/ipv6/ip6_tunnel.c
View File

@ -701,7 +701,7 @@ static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
goto discard;
}
secpath_reset(skb);
skb->mac.raw = skb->nh.raw;
skb->mac_header = skb->network_header;
skb_reset_network_header(skb);
skb->protocol = htons(protocol);
skb->pkt_type = PACKET_HOST;
@ -898,7 +898,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
dst_release(skb->dst);
skb->dst = dst_clone(dst);
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
proto = fl->proto;
if (encap_limit >= 0) {

2
net/ipv6/ipcomp6.c
View File

@ -81,7 +81,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
/* Remove ipcomp header and decompress original payload */
iph = ipv6_hdr(skb);
ipch = (void *)skb->data;
skb->h.raw = skb->nh.raw + sizeof(*ipch);
skb->transport_header = skb->network_header + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
/* decompression */

2
net/ipv6/netfilter/ip6t_LOG.c
View File

@ -396,7 +396,7 @@ ip6t_log_packet(unsigned int pf,
/* MAC logging for input chain only. */
printk("MAC=");
if (skb->dev && (len = skb->dev->hard_header_len) &&
skb->mac.raw != skb->nh.raw) {
skb->mac_header != skb->network_header) {
const unsigned char *p = skb_mac_header(skb);
int i;

4
net/ipv6/netfilter/nf_conntrack_reasm.c
View File

@ -630,8 +630,8 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
skb_network_header(head)[fq->nhoffset] = skb_transport_header(head)[0];
memmove(head->head + sizeof(struct frag_hdr), head->head,
(head->data - head->head) - sizeof(struct frag_hdr));
head->mac.raw += sizeof(struct frag_hdr);
head->nh.raw += sizeof(struct frag_hdr);
head->mac_header += sizeof(struct frag_hdr);
head->network_header += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
skb_reset_transport_header(head);

2
net/ipv6/raw.c
View File

@ -583,7 +583,7 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
skb->ip_summed = CHECKSUM_NONE;
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
err = memcpy_fromiovecend((void *)iph, from, 0, length);
if (err)
goto error_fault;

8
net/ipv6/reassembly.c
View File

@ -646,11 +646,11 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff **skb_in,
/* We have to remove fragment header from datagram and to relocate
* header in order to calculate ICV correctly. */
nhoff = fq->nhoffset;
skb_network_header(head)[nhoff] = head->h.raw[0];
skb_network_header(head)[nhoff] = skb_transport_header(head)[0];
memmove(head->head + sizeof(struct frag_hdr), head->head,
(head->data - head->head) - sizeof(struct frag_hdr));
head->mac.raw += sizeof(struct frag_hdr);
head->nh.raw += sizeof(struct frag_hdr);
head->mac_header += sizeof(struct frag_hdr);
head->network_header += sizeof(struct frag_hdr);
skb_shinfo(head)->frag_list = head->next;
skb_reset_transport_header(head);
@ -732,7 +732,7 @@ static int ipv6_frag_rcv(struct sk_buff **skbp)
if (!(fhdr->frag_off & htons(0xFFF9))) {
/* It is not a fragmented frame */
skb->h.raw += sizeof(struct frag_hdr);
skb->transport_header += sizeof(struct frag_hdr);
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMOKS);
IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);

4
net/ipv6/sit.c
View File

@ -382,7 +382,7 @@ static int ipip6_rcv(struct sk_buff *skb)
read_lock(&ipip6_lock);
if ((tunnel = ipip6_tunnel_lookup(iph->saddr, iph->daddr)) != NULL) {
secpath_reset(skb);
skb->mac.raw = skb->nh.raw;
skb->mac_header = skb->network_header;
skb_reset_network_header(skb);
IPCB(skb)->flags = 0;
skb->protocol = htons(ETH_P_IPV6);
@ -553,7 +553,7 @@ static int ipip6_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
iph6 = ipv6_hdr(skb);
}
skb->h.raw = skb->nh.raw;
skb->transport_header = skb->network_header;
skb_push(skb, sizeof(struct iphdr));
skb_reset_network_header(skb);
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));

4
net/ipv6/xfrm6_mode_beet.c
View File

@ -48,8 +48,8 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
skb_reset_network_header(skb);
top_iph = ipv6_hdr(skb);
skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
skb->nh.raw += offsetof(struct ipv6hdr, nexthdr);
skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
skb->network_header += offsetof(struct ipv6hdr, nexthdr);
ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);

4
net/ipv6/xfrm6_mode_transport.c
View File

@ -54,10 +54,10 @@ static int xfrm6_transport_input(struct xfrm_state *x, struct sk_buff *skb)
{
int ihl = skb->data - skb_transport_header(skb);
if (skb->h.raw != skb->nh.raw) {
if (skb->transport_header != skb->network_header) {
memmove(skb_transport_header(skb),
skb_network_header(skb), ihl);
skb->nh.raw = skb->h.raw;
skb->network_header = skb->transport_header;
}
ipv6_hdr(skb)->payload_len = htons(skb->len + ihl -
sizeof(struct ipv6hdr));

4
net/ipv6/xfrm6_mode_tunnel.c
View File

@ -55,8 +55,8 @@ static int xfrm6_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
skb_reset_network_header(skb);
top_iph = ipv6_hdr(skb);
skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
skb->nh.raw += offsetof(struct ipv6hdr, nexthdr);
skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
skb->network_header += offsetof(struct ipv6hdr, nexthdr);
top_iph->version = 6;
if (xdst->route->ops->family == AF_INET6) {

2
net/llc/llc_input.c
View File

@ -112,7 +112,7 @@ static inline int llc_fixup_skb(struct sk_buff *skb)
if (unlikely(!pskb_may_pull(skb, llc_len)))
return 0;
skb->h.raw += llc_len;
skb->transport_header += llc_len;
skb_pull(skb, llc_len);
if (skb->protocol == htons(ETH_P_802_2)) {
__be16 pdulen = eth_hdr(skb)->h_proto;

28
net/packet/af_packet.c
View File

@ -114,22 +114,22 @@ On receive:
-----------
Incoming, dev->hard_header!=NULL
mac.raw -> ll header
data -> data
mac_header -> ll header
data -> data
Outgoing, dev->hard_header!=NULL
mac.raw -> ll header
data -> ll header
mac_header -> ll header
data -> ll header
Incoming, dev->hard_header==NULL
mac.raw -> UNKNOWN position. It is very likely, that it points to ll header.
PPP makes it, that is wrong, because introduce assymetry
between rx and tx paths.
data -> data
mac_header -> UNKNOWN position. It is very likely, that it points to ll
header. PPP makes it, that is wrong, because introduce
assymetry between rx and tx paths.
data -> data
Outgoing, dev->hard_header==NULL
mac.raw -> data. ll header is still not built!
data -> data
mac_header -> data. ll header is still not built!
data -> data
Resume
If dev->hard_header==NULL we are unlikely to restore sensible ll header.
@ -139,12 +139,12 @@ On transmit:
------------
dev->hard_header != NULL
mac.raw -> ll header
data -> ll header
mac_header -> ll header
data -> ll header
dev->hard_header == NULL (ll header is added by device, we cannot control it)
mac.raw -> data
data -> data
mac_header -> data
data -> data
We should set nh.raw on output to correct posistion,
packet classifier depends on it.

8
net/sctp/input.c
View File

@ -522,14 +522,14 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
}
/* Fix up skb to look at the embedded net header. */
saveip = skb->nh.raw;
savesctp = skb->h.raw;
saveip = skb->network_header;
savesctp = skb->transport_header;
skb_reset_network_header(skb);
skb_set_transport_header(skb, ihlen);
sk = sctp_err_lookup(AF_INET, skb, sctp_hdr(skb), &asoc, &transport);
/* Put back, the original pointers. */
skb->nh.raw = saveip;
skb->h.raw = savesctp;
skb->network_header = saveip;
skb->transport_header = savesctp;
if (!sk) {
ICMP_INC_STATS_BH(ICMP_MIB_INERRORS);
return;

8
net/sctp/ipv6.c
View File

@ -132,14 +132,14 @@ SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
idev = in6_dev_get(skb->dev);
/* Fix up skb to look at the embedded net header. */
saveip = skb->nh.raw;
savesctp = skb->h.raw;
saveip = skb->network_header;
savesctp = skb->transport_header;
skb_reset_network_header(skb);
skb_set_transport_header(skb, offset);
sk = sctp_err_lookup(AF_INET6, skb, sctp_hdr(skb), &asoc, &transport);
/* Put back, the original pointers. */
skb->nh.raw = saveip;
skb->h.raw = savesctp;
skb->network_header = saveip;
skb->transport_header = savesctp;
if (!sk) {
ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INERRORS);
goto out;