commit 98e399f82ab3a6d863d1d4a7ea48925cc91c830e
author Arnaldo Carvalho de Melo <acme@redhat.com> Mon Mar 19 15:33:04 2007 -0700
committer David S. Miller <davem@sunset.davemloft.net> Wed Apr 25 22:24:41 2007 -0700
tree 5f84043aeec1ec27c2e8e6cc25b5d2e6c3d07343
parent 31713c333ddbb66d694829082620b69b71c4b09a

[SK_BUFF]: Introduce skb_mac_header()

For the places where we need a pointer to the mac header, it is still legal to
touch skb->mac.raw directly if just adding to, subtracting from or setting it
to another layer header.

This one also converts some more cases to skb_reset_mac_header() that my
regex missed as it had no spaces before nor after '=', ugh.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/netfilter/ipt_LOG.c

diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index d9c37fd..c697971 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -399,9 +399,9 @@
 		/* MAC logging for input chain only. */
 		printk("MAC=");
 		if (skb->dev && skb->dev->hard_header_len
-		    && skb->mac.raw != (void*)skb->nh.iph) {
+		    && skb->mac.raw != skb->nh.raw) {
 			int i;
-			unsigned char *p = skb->mac.raw;
+			const unsigned char *p = skb_mac_header(skb);
 			for (i = 0; i < skb->dev->hard_header_len; i++,p++)
 				printk("%02x%c", *p,
 				       i==skb->dev->hard_header_len - 1

net/ipv4/netfilter/ipt_ULOG.c

diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 9718b66..fae2a34 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -251,9 +251,9 @@
 		*(pm->prefix) = '\0';
 
 	if (in && in->hard_header_len > 0
-	    && skb->mac.raw != (void *) skb->nh.iph
+	    && skb->mac.raw != skb->nh.raw
 	    && in->hard_header_len <= ULOG_MAC_LEN) {
-		memcpy(pm->mac, skb->mac.raw, in->hard_header_len);
+		memcpy(pm->mac, skb_mac_header(skb), in->hard_header_len);
 		pm->mac_len = in->hard_header_len;
 	} else
 		pm->mac_len = 0;

net/ipv4/route.c

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 29ee7be..486ab93 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1698,9 +1698,9 @@
 		printk(KERN_WARNING "martian source %u.%u.%u.%u from "
 			"%u.%u.%u.%u, on dev %s\n",
 			NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
-		if (dev->hard_header_len && skb->mac.raw) {
+		if (dev->hard_header_len && skb_mac_header_was_set(skb)) {
 			int i;
-			unsigned char *p = skb->mac.raw;
+			const unsigned char *p = skb_mac_header(skb);
 			printk(KERN_WARNING "ll header: ");
 			for (i = 0; i < dev->hard_header_len; i++, p++) {
 				printk("%02x", *p);

net/ipv4/tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 1ec05bd..f5e019c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3633,7 +3633,7 @@
 		if (!nskb)
 			return;
 
-		skb_set_mac_header(nskb, skb->mac.raw - skb->head);
+		skb_set_mac_header(nskb, skb_mac_header(skb) - skb->head);
 		nskb->nh.raw = nskb->data + (skb->nh.raw - skb->head);
 		nskb->h.raw = nskb->data + (skb->h.raw - skb->head);
 

net/ipv4/xfrm4_mode_tunnel.c

diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index f09055d..8e123e3 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -126,9 +126,9 @@
 		skb->protocol = htons(ETH_P_IPV6);
 	}
 #endif
-	old_mac = skb->mac.raw;
+	old_mac = skb_mac_header(skb);
 	skb_set_mac_header(skb, -skb->mac_len);
-	memmove(skb->mac.raw, old_mac, skb->mac_len);
+	memmove(skb_mac_header(skb), old_mac, skb->mac_len);
 	skb->nh.raw = skb->data;
 	err = 0;