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Add protocol (TCP, UDP, AH, ESP) debug functions for IPv6 packet debug
output.
Signed-off-by: Julius Volz <juliusv@xxxxxxxxxx>
2 files changed, 93 insertions(+), 6 deletions(-)
diff --git a/net/ipv4/ipvs/ip_vs_proto.c b/net/ipv4/ipvs/ip_vs_proto.c
index 6099a88..50f6215 100644
--- a/net/ipv4/ipvs/ip_vs_proto.c
+++ b/net/ipv4/ipvs/ip_vs_proto.c
@@ -152,10 +152,10 @@ const char * ip_vs_state_name(__u16 proto, int state)
void
-ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp,
- const struct sk_buff *skb,
- int offset,
- const char *msg)
+ip_vs_tcpudp_debug_packet_v4(struct ip_vs_protocol *pp,
+ const struct sk_buff *skb,
+ int offset,
+ const char *msg)
{
char buf[128];
struct iphdr _iph, *ih;
@@ -189,6 +189,61 @@ ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp,
printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
}
+#ifdef CONFIG_IP_VS_IPV6
+void
+ip_vs_tcpudp_debug_packet_v6(struct ip_vs_protocol *pp,
+ const struct sk_buff *skb,
+ int offset,
+ const char *msg)
+{
+ char buf[192];
+ struct ipv6hdr _iph, *ih;
+
+ ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
+ if (ih == NULL)
+ sprintf(buf, "%s TRUNCATED", pp->name);
+ else if (ih->nexthdr == IPPROTO_FRAGMENT)
+ sprintf(buf, "%s " NIP6_FMT "->" NIP6_FMT " frag",
+ pp->name, NIP6(ih->saddr),
+ NIP6(ih->daddr));
+ else {
+ __be16 _ports[2], *pptr;
+
+ pptr = skb_header_pointer(skb, offset + sizeof(struct ipv6hdr),
+ sizeof(_ports), _ports);
+ if (pptr == NULL)
+ sprintf(buf, "%s TRUNCATED " NIP6_FMT "->" NIP6_FMT,
+ pp->name,
+ NIP6(ih->saddr),
+ NIP6(ih->daddr));
+ else
+ sprintf(buf, "%s " NIP6_FMT ":%u->" NIP6_FMT ":%u",
+ pp->name,
+ NIP6(ih->saddr),
+ ntohs(pptr[0]),
+ NIP6(ih->daddr),
+ ntohs(pptr[1]));
+ }
+
+ printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
+}
+#endif
+
+
+void
+ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp,
+ const struct sk_buff *skb,
+ int offset,
+ const char *msg)
+{
+#ifdef CONFIG_IP_VS_IPV6
+ if (skb->protocol == __constant_htons(ETH_P_IPV6))
+ ip_vs_tcpudp_debug_packet_v6(pp, skb, offset, msg);
+ else
+#endif
+ ip_vs_tcpudp_debug_packet_v4(pp, skb, offset, msg);
+}
+
int __init ip_vs_protocol_init(void)
{
diff --git a/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
b/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
index 2a361a9..4b0b8f2 100644
--- a/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
+++ b/net/ipv4/ipvs/ip_vs_proto_ah_esp.c
@@ -125,8 +125,8 @@ ah_esp_conn_schedule(int af, struct sk_buff *skb, struct
ip_vs_protocol *pp,
static void
-ah_esp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
- int offset, const char *msg)
+ah_esp_debug_packet_v4(struct ip_vs_protocol *pp, const struct sk_buff *skb,
+ int offset, const char *msg)
{
char buf[256];
struct iphdr _iph, *ih;
@@ -142,6 +142,38 @@ ah_esp_debug_packet(struct ip_vs_protocol *pp, const
struct sk_buff *skb,
printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
}
+#ifdef CONFIG_IP_VS_IPV6
+static void
+ah_esp_debug_packet_v6(struct ip_vs_protocol *pp, const struct sk_buff *skb,
+ int offset, const char *msg)
+{
+ char buf[256];
+ struct ipv6hdr _iph, *ih;
+
+ ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
+ if (ih == NULL)
+ sprintf(buf, "%s TRUNCATED", pp->name);
+ else
+ sprintf(buf, "%s " NIP6_FMT "->" NIP6_FMT,
+ pp->name, NIP6(ih->saddr),
+ NIP6(ih->daddr));
+
+ printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
+}
+#endif
+
+static void
+ah_esp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
+ int offset, const char *msg)
+{
+#ifdef CONFIG_IP_VS_IPV6
+ if (skb->protocol == __constant_htons(ETH_P_IPV6))
+ ah_esp_debug_packet_v6(pp, skb, offset, msg);
+ else
+#endif
+ ah_esp_debug_packet_v4(pp, skb, offset, msg);
+}
+
static void ah_esp_init(struct ip_vs_protocol *pp)
{
--
1.5.4.5
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