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path: root/net/ipv4/netfilter/nf_nat_helper.c
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Diffstat (limited to 'net/ipv4/netfilter/nf_nat_helper.c')
-rw-r--r--net/ipv4/netfilter/nf_nat_helper.c59
1 files changed, 26 insertions, 33 deletions
diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c
index 15b6e5ce3a04..93d8a0a8f035 100644
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -26,13 +26,9 @@
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_helper.h>
-#if 0
-#define DEBUGP printk
-#define DUMP_OFFSET(x) printk("offset_before=%d, offset_after=%d, correction_pos=%u\n", x->offset_before, x->offset_after, x->correction_pos);
-#else
-#define DEBUGP(format, args...)
-#define DUMP_OFFSET(x)
-#endif
+#define DUMP_OFFSET(x) \
+ pr_debug("offset_before=%d, offset_after=%d, correction_pos=%u\n", \
+ x->offset_before, x->offset_after, x->correction_pos);
static DEFINE_SPINLOCK(nf_nat_seqofs_lock);
@@ -47,15 +43,15 @@ adjust_tcp_sequence(u32 seq,
struct nf_nat_seq *this_way, *other_way;
struct nf_conn_nat *nat = nfct_nat(ct);
- DEBUGP("nf_nat_resize_packet: old_size = %u, new_size = %u\n",
- (*skb)->len, new_size);
+ pr_debug("adjust_tcp_sequence: seq = %u, sizediff = %d\n",
+ ntohl(seq), seq);
dir = CTINFO2DIR(ctinfo);
- this_way = &nat->info.seq[dir];
- other_way = &nat->info.seq[!dir];
+ this_way = &nat->seq[dir];
+ other_way = &nat->seq[!dir];
- DEBUGP("nf_nat_resize_packet: Seq_offset before: ");
+ pr_debug("nf_nat_resize_packet: Seq_offset before: ");
DUMP_OFFSET(this_way);
spin_lock_bh(&nf_nat_seqofs_lock);
@@ -72,7 +68,7 @@ adjust_tcp_sequence(u32 seq,
}
spin_unlock_bh(&nf_nat_seqofs_lock);
- DEBUGP("nf_nat_resize_packet: Seq_offset after: ");
+ pr_debug("nf_nat_resize_packet: Seq_offset after: ");
DUMP_OFFSET(this_way);
}
@@ -100,14 +96,12 @@ static void mangle_contents(struct sk_buff *skb,
/* update skb info */
if (rep_len > match_len) {
- DEBUGP("nf_nat_mangle_packet: Extending packet by "
- "%u from %u bytes\n", rep_len - match_len,
- skb->len);
+ pr_debug("nf_nat_mangle_packet: Extending packet by "
+ "%u from %u bytes\n", rep_len - match_len, skb->len);
skb_put(skb, rep_len - match_len);
} else {
- DEBUGP("nf_nat_mangle_packet: Shrinking packet from "
- "%u from %u bytes\n", match_len - rep_len,
- skb->len);
+ pr_debug("nf_nat_mangle_packet: Shrinking packet from "
+ "%u from %u bytes\n", match_len - rep_len, skb->len);
__skb_trim(skb, skb->len + rep_len - match_len);
}
@@ -178,7 +172,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff **pskb,
datalen = (*pskb)->len - iph->ihl*4;
if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
if (!(rt->rt_flags & RTCF_LOCAL) &&
- (*pskb)->dev->features & NETIF_F_ALL_CSUM) {
+ (*pskb)->dev->features & NETIF_F_V4_CSUM) {
(*pskb)->ip_summed = CHECKSUM_PARTIAL;
(*pskb)->csum_start = skb_headroom(*pskb) +
skb_network_offset(*pskb) +
@@ -190,7 +184,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff **pskb,
tcph->check = 0;
tcph->check = tcp_v4_check(datalen,
iph->saddr, iph->daddr,
- csum_partial((char *)tcph,
+ csum_partial(tcph,
datalen, 0));
}
} else
@@ -265,7 +259,7 @@ nf_nat_mangle_udp_packet(struct sk_buff **pskb,
if ((*pskb)->ip_summed != CHECKSUM_PARTIAL) {
if (!(rt->rt_flags & RTCF_LOCAL) &&
- (*pskb)->dev->features & NETIF_F_ALL_CSUM) {
+ (*pskb)->dev->features & NETIF_F_V4_CSUM) {
(*pskb)->ip_summed = CHECKSUM_PARTIAL;
(*pskb)->csum_start = skb_headroom(*pskb) +
skb_network_offset(*pskb) +
@@ -278,7 +272,7 @@ nf_nat_mangle_udp_packet(struct sk_buff **pskb,
udph->check = 0;
udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,
datalen, IPPROTO_UDP,
- csum_partial((char *)udph,
+ csum_partial(udph,
datalen, 0));
if (!udph->check)
udph->check = CSUM_MANGLED_0;
@@ -320,9 +314,9 @@ sack_adjust(struct sk_buff *skb,
new_end_seq = htonl(ntohl(sack->end_seq)
- natseq->offset_before);
- DEBUGP("sack_adjust: start_seq: %d->%d, end_seq: %d->%d\n",
- ntohl(sack->start_seq), new_start_seq,
- ntohl(sack->end_seq), new_end_seq);
+ pr_debug("sack_adjust: start_seq: %d->%d, end_seq: %d->%d\n",
+ ntohl(sack->start_seq), new_start_seq,
+ ntohl(sack->end_seq), new_end_seq);
nf_proto_csum_replace4(&tcph->check, skb,
sack->start_seq, new_start_seq, 0);
@@ -372,8 +366,7 @@ nf_nat_sack_adjust(struct sk_buff **pskb,
op[1] >= 2+TCPOLEN_SACK_PERBLOCK &&
((op[1] - 2) % TCPOLEN_SACK_PERBLOCK) == 0)
sack_adjust(*pskb, tcph, optoff+2,
- optoff+op[1],
- &nat->info.seq[!dir]);
+ optoff+op[1], &nat->seq[!dir]);
optoff += op[1];
}
}
@@ -394,8 +387,8 @@ nf_nat_seq_adjust(struct sk_buff **pskb,
dir = CTINFO2DIR(ctinfo);
- this_way = &nat->info.seq[dir];
- other_way = &nat->info.seq[!dir];
+ this_way = &nat->seq[dir];
+ other_way = &nat->seq[!dir];
if (!skb_make_writable(pskb, ip_hdrlen(*pskb) + sizeof(*tcph)))
return 0;
@@ -415,9 +408,9 @@ nf_nat_seq_adjust(struct sk_buff **pskb,
nf_proto_csum_replace4(&tcph->check, *pskb, tcph->seq, newseq, 0);
nf_proto_csum_replace4(&tcph->check, *pskb, tcph->ack_seq, newack, 0);
- DEBUGP("Adjusting sequence number from %u->%u, ack from %u->%u\n",
- ntohl(tcph->seq), ntohl(newseq), ntohl(tcph->ack_seq),
- ntohl(newack));
+ pr_debug("Adjusting sequence number from %u->%u, ack from %u->%u\n",
+ ntohl(tcph->seq), ntohl(newseq), ntohl(tcph->ack_seq),
+ ntohl(newack));
tcph->seq = newseq;
tcph->ack_seq = newack;
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-24 15:09:05 +0000