Joe Perches
2017-Feb-28 22:09 UTC
[Bridge] [PATCH] 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: Joe Perches <joe at perches.com>
---
net/bridge/netfilter/ebt_log.c | 34 +++++++++++++++++-----------------
net/ipv4/netfilter/nf_nat_snmp_basic.c | 15 ++-------------
2 files changed, 19 insertions(+), 30 deletions(-)
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 98b9c8e8615e..707caea39743 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -62,10 +62,10 @@ print_ports(const struct sk_buff *skb, uint8_t protocol, int
offset)
pptr = skb_header_pointer(skb, offset,
sizeof(_ports), &_ports);
if (pptr == NULL) {
- printk(" INCOMPLETE TCP/UDP header");
+ pr_cont(" INCOMPLETE TCP/UDP header");
return;
}
- printk(" SPT=%u DPT=%u", ntohs(pptr->src), ntohs(pptr->dst));
+ pr_cont(" SPT=%u DPT=%u", ntohs(pptr->src),
ntohs(pptr->dst));
}
}
@@ -100,11 +100,11 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int
hooknum,
ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
if (ih == NULL) {
- printk(" INCOMPLETE IP header");
+ pr_cont(" INCOMPLETE IP header");
goto out;
}
- printk(" IP SRC=%pI4 IP DST=%pI4, IP tos=0x%02X, IP proto=%d",
- &ih->saddr, &ih->daddr, ih->tos, ih->protocol);
+ pr_cont(" IP SRC=%pI4 IP DST=%pI4, IP tos=0x%02X, IP proto=%d",
+ &ih->saddr, &ih->daddr, ih->tos, ih->protocol);
print_ports(skb, ih->protocol, ih->ihl*4);
goto out;
}
@@ -120,11 +120,11 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int
hooknum,
ih = skb_header_pointer(skb, 0, sizeof(_iph), &_iph);
if (ih == NULL) {
- printk(" INCOMPLETE IPv6 header");
+ pr_cont(" INCOMPLETE IPv6 header");
goto out;
}
- printk(" IPv6 SRC=%pI6 IPv6 DST=%pI6, IPv6 priority=0x%01X, Next
Header=%d",
- &ih->saddr, &ih->daddr, ih->priority,
ih->nexthdr);
+ pr_cont(" IPv6 SRC=%pI6 IPv6 DST=%pI6, IPv6 priority=0x%01X, Next
Header=%d",
+ &ih->saddr, &ih->daddr, ih->priority, ih->nexthdr);
nexthdr = ih->nexthdr;
offset_ph = ipv6_skip_exthdr(skb, sizeof(_iph), &nexthdr, &frag_off);
if (offset_ph == -1)
@@ -142,12 +142,12 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int
hooknum,
ah = skb_header_pointer(skb, 0, sizeof(_arph), &_arph);
if (ah == NULL) {
- printk(" INCOMPLETE ARP header");
+ pr_cont(" INCOMPLETE ARP header");
goto out;
}
- printk(" ARP HTYPE=%d, PTYPE=0x%04x, OPCODE=%d",
- ntohs(ah->ar_hrd), ntohs(ah->ar_pro),
- ntohs(ah->ar_op));
+ pr_cont(" ARP HTYPE=%d, PTYPE=0x%04x, OPCODE=%d",
+ ntohs(ah->ar_hrd), ntohs(ah->ar_pro),
+ ntohs(ah->ar_op));
/* If it's for Ethernet and the lengths are OK,
* then log the ARP payload
@@ -161,17 +161,17 @@ ebt_log_packet(struct net *net, u_int8_t pf, unsigned int
hooknum,
ap = skb_header_pointer(skb, sizeof(_arph),
sizeof(_arpp), &_arpp);
if (ap == NULL) {
- printk(" INCOMPLETE ARP payload");
+ pr_cont(" INCOMPLETE ARP payload");
goto out;
}
- printk(" 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);
+ 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);
}
}
out:
- printk("\n");
+ pr_cont("\n");
spin_unlock_bh(&ebt_log_lock);
-
}
static unsigned int
diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c
b/net/ipv4/netfilter/nf_nat_snmp_basic.c
index c9b52c361da2..ef49989c93b1 100644
--- a/net/ipv4/netfilter/nf_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c
@@ -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.
* (And this is the fucking 'basic' method).
@@ -1026,7 +1014,8 @@ static int snmp_parse_mangle(unsigned char *msg,
struct snmp_object *obj;
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);
--
2.10.0.rc2.1.g053435c
Pablo Neira Ayuso
2017-Mar-06 17:02 UTC
[Bridge] [PATCH] netfilter: Use pr_cont where appropriate
On Tue, Feb 28, 2017 at 02:09:24PM -0800, Joe Perches wrote:> 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 variantApplied, thanks Joe.