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authorDavid S. Miller <davem@davemloft.net>2010-07-02 22:42:06 -0700
committerDavid S. Miller <davem@davemloft.net>2010-07-02 22:42:06 -0700
commite490c1defec4236a6a131fe2d13bf7ba787c02f8 (patch)
tree132325ca88cc86a74345a93b2774c5ca284b038a /net/ipv6
parent0a17d8c744e44617a3c22e7af68b4c5c9c1c5dba (diff)
parent4df53d8bab65cf2c18daebd51a5a4847e03f1943 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/netfilter/ip6t_LOG.c81
1 files changed, 53 insertions, 28 deletions
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index af4ee11f206..0a07ae7b933 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -373,6 +373,56 @@ static void dump_packet(const struct nf_loginfo *info,
printk("MARK=0x%x ", skb->mark);
}
+static void dump_mac_header(const struct nf_loginfo *info,
+ const struct sk_buff *skb)
+{
+ struct net_device *dev = skb->dev;
+ unsigned int logflags = 0;
+
+ if (info->type == NF_LOG_TYPE_LOG)
+ logflags = info->u.log.logflags;
+
+ if (!(logflags & IP6T_LOG_MACDECODE))
+ goto fallback;
+
+ switch (dev->type) {
+ case ARPHRD_ETHER:
+ printk("MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
+ eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
+ ntohs(eth_hdr(skb)->h_proto));
+ return;
+ default:
+ break;
+ }
+
+fallback:
+ printk("MAC=");
+ if (dev->hard_header_len &&
+ skb->mac_header != skb->network_header) {
+ const unsigned char *p = skb_mac_header(skb);
+ unsigned int len = dev->hard_header_len;
+ unsigned int i;
+
+ if (dev->type == ARPHRD_SIT &&
+ (p -= ETH_HLEN) < skb->head)
+ p = NULL;
+
+ if (p != NULL) {
+ printk("%02x", *p++);
+ for (i = 1; i < len; i++)
+ printk(":%02x", p[i]);
+ }
+ printk(" ");
+
+ if (dev->type == ARPHRD_SIT) {
+ const struct iphdr *iph =
+ (struct iphdr *)skb_mac_header(skb);
+ printk("TUNNEL=%pI4->%pI4 ", &iph->saddr, &iph->daddr);
+ }
+ } else
+ printk(" ");
+}
+
static struct nf_loginfo default_loginfo = {
.type = NF_LOG_TYPE_LOG,
.u = {
@@ -400,35 +450,10 @@ ip6t_log_packet(u_int8_t pf,
prefix,
in ? in->name : "",
out ? out->name : "");
- if (in && !out) {
- unsigned int len;
- /* MAC logging for input chain only. */
- printk("MAC=");
- if (skb->dev && (len = skb->dev->hard_header_len) &&
- skb->mac_header != skb->network_header) {
- const unsigned char *p = skb_mac_header(skb);
- int i;
-
- if (skb->dev->type == ARPHRD_SIT &&
- (p -= ETH_HLEN) < skb->head)
- p = NULL;
-
- if (p != NULL) {
- for (i = 0; i < len; i++)
- printk("%02x%s", p[i],
- i == len - 1 ? "" : ":");
- }
- printk(" ");
- if (skb->dev->type == ARPHRD_SIT) {
- const struct iphdr *iph =
- (struct iphdr *)skb_mac_header(skb);
- printk("TUNNEL=%pI4->%pI4 ",
- &iph->saddr, &iph->daddr);
- }
- } else
- printk(" ");
- }
+ /* MAC logging for input path only. */
+ if (in && !out)
+ dump_mac_header(loginfo, skb);
dump_packet(loginfo, skb, skb_network_offset(skb), 1);
printk("\n");