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Commit 3b047d9d authored by Julius Volz's avatar Julius Volz Committed by Simon Horman
Browse files

IPVS: Add protocol debug functions for IPv6 



Add protocol (TCP, UDP, AH, ESP) debug functions for IPv6 packet debug
output.

Signed-off-by: default avatarJulius Volz <juliusv@google.com>
Signed-off-by: default avatarSimon Horman <horms@verge.net.au>
parent 51ef348b

net/ipv4/ipvs/ip_vs_proto.c

+59 −4
Original line number Diff line number Diff line
@@ -152,7 +152,7 @@ const char * ip_vs_state_name(__u16 proto, int state) 




void

ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp,

ip_vs_tcpudp_debug_packet_v4(struct ip_vs_protocol *pp,

			     const struct sk_buff *skb,

			     int offset,

			     const char *msg)
@@ -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)

{

net/ipv4/ipvs/ip_vs_proto_ah_esp.c

+34 −2
Original line number Diff line number Diff line
@@ -125,7 +125,7 @@ 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,

ah_esp_debug_packet_v4(struct ip_vs_protocol *pp, const struct sk_buff *skb,

		       int offset, const char *msg)

{

	char buf[256];
@@ -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)

{