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Commit 13fa745d authored by Joe Perches's avatar Joe Perches Committed by Pablo Neira Ayuso
Browse files

netfilter: Use pr_cont where appropriate



Logging output was changed when simple printks without KERN_CONT
are now emitted on a new line and KERN_CONT is required to continue
lines so use pr_cont.

Miscellanea:

o realign arguments
o use print_hex_dump instead of a local variant

Signed-off-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 3206cade
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+17 −17
Original line number Original line Diff line number Diff line
@@ -62,10 +62,10 @@ print_ports(const struct sk_buff *skb, uint8_t protocol, int offset)
		pptr = skb_header_pointer(skb, offset,
		pptr = skb_header_pointer(skb, offset,
					  sizeof(_ports), &_ports);
					  sizeof(_ports), &_ports);
		if (pptr == NULL) {
		if (pptr == NULL) {
			printk(" INCOMPLETE TCP/UDP header");
			pr_cont(" INCOMPLETE TCP/UDP header");
			return;
			return;
		}
		}
		printk(" SPT=%u DPT=%u", ntohs(pptr->src), ntohs(pptr->dst));
		pr_cont(" SPT=%u DPT=%u", ntohs(pptr->src), ntohs(pptr->dst));
	}
	}
}
}


@@ -100,10 +100,10 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int hooknum,


		ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
		ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
		if (ih == NULL) {
		if (ih == NULL) {
			printk(" INCOMPLETE IP header");
			pr_cont(" INCOMPLETE IP header");
			goto out;
			goto out;
		}
		}
		printk(" IP SRC=%pI4 IP DST=%pI4, IP tos=0x%02X, IP proto=%d",
		pr_cont(" IP SRC=%pI4 IP DST=%pI4, IP tos=0x%02X, IP proto=%d",
			&ih->saddr, &ih->daddr, ih->tos, ih->protocol);
			&ih->saddr, &ih->daddr, ih->tos, ih->protocol);
		print_ports(skb, ih->protocol, ih->ihl*4);
		print_ports(skb, ih->protocol, ih->ihl*4);
		goto out;
		goto out;
@@ -120,10 +120,10 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int hooknum,


		ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
		ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
		if (ih == NULL) {
		if (ih == NULL) {
			printk(" INCOMPLETE IPv6 header");
			pr_cont(" INCOMPLETE IPv6 header");
			goto out;
			goto out;
		}
		}
		printk(" IPv6 SRC=%pI6 IPv6 DST=%pI6, IPv6 priority=0x%01X, Next Header=%d",
		pr_cont(" IPv6 SRC=%pI6 IPv6 DST=%pI6, IPv6 priority=0x%01X, Next Header=%d",
			&ih->saddr, &ih->daddr, ih->priority, ih->nexthdr);
			&ih->saddr, &ih->daddr, ih->priority, ih->nexthdr);
		nexthdr = ih->nexthdr;
		nexthdr = ih->nexthdr;
		offset_ph = ipv6_skip_exthdr(skb, sizeof(_iph), &nexthdr, &frag_off);
		offset_ph = ipv6_skip_exthdr(skb, sizeof(_iph), &nexthdr, &frag_off);
@@ -142,10 +142,10 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int hooknum,


		ah = skb_header_pointer(skb, 0, sizeof(_arph), &_arph);
		ah = skb_header_pointer(skb, 0, sizeof(_arph), &_arph);
		if (ah == NULL) {
		if (ah == NULL) {
			printk(" INCOMPLETE ARP header");
			pr_cont(" INCOMPLETE ARP header");
			goto out;
			goto out;
		}
		}
		printk(" ARP HTYPE=%d, PTYPE=0x%04x, OPCODE=%d",
		pr_cont(" ARP HTYPE=%d, PTYPE=0x%04x, OPCODE=%d",
			ntohs(ah->ar_hrd), ntohs(ah->ar_pro),
			ntohs(ah->ar_hrd), ntohs(ah->ar_pro),
			ntohs(ah->ar_op));
			ntohs(ah->ar_op));


@@ -161,17 +161,17 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int hooknum,
			ap = skb_header_pointer(skb, sizeof(_arph),
			ap = skb_header_pointer(skb, sizeof(_arph),
						sizeof(_arpp), &_arpp);
						sizeof(_arpp), &_arpp);
			if (ap == NULL) {
			if (ap == NULL) {
				printk(" INCOMPLETE ARP payload");
				pr_cont(" INCOMPLETE ARP payload");
				goto out;
				goto out;
			}
			}
			printk(" ARP MAC SRC=%pM ARP IP SRC=%pI4 ARP MAC DST=%pM ARP IP DST=%pI4",
			pr_cont(" ARP MAC SRC=%pM ARP IP SRC=%pI4 ARP MAC DST=%pM ARP IP DST=%pI4",
					ap->mac_src, ap->ip_src, ap->mac_dst, ap->ip_dst);
				ap->mac_src, ap->ip_src,
				ap->mac_dst, ap->ip_dst);
		}
		}
	}
	}
out:
out:
	printk("\n");
	pr_cont("\n");
	spin_unlock_bh(&ebt_log_lock);
	spin_unlock_bh(&ebt_log_lock);

}
}


static unsigned int
static unsigned int
+2 −13
Original line number Original line Diff line number Diff line
@@ -998,18 +998,6 @@ static unsigned char snmp_trap_decode(struct asn1_ctx *ctx,
 *
 *
 *****************************************************************************/
 *****************************************************************************/


static void hex_dump(const unsigned char *buf, size_t len)
{
	size_t i;

	for (i = 0; i < len; i++) {
		if (i && !(i % 16))
			printk("\n");
		printk("%02x ", *(buf + i));
	}
	printk("\n");
}

/*
/*
 * Parse and mangle SNMP message according to mapping.
 * Parse and mangle SNMP message according to mapping.
 * (And this is the fucking 'basic' method).
 * (And this is the fucking 'basic' method).
@@ -1026,7 +1014,8 @@ static int snmp_parse_mangle(unsigned char *msg,
	struct snmp_object *obj;
	struct snmp_object *obj;


	if (debug > 1)
	if (debug > 1)
		hex_dump(msg, len);
		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_NONE, 16, 1,
			       msg, len, 0);


	asn1_open(&ctx, msg, len);
	asn1_open(&ctx, msg, len);