summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--include/net/netfilter/nf_log.h6
-rw-r--r--include/net/netfilter/xt_log.h54
-rw-r--r--net/netfilter/nf_log.c57
-rw-r--r--net/netfilter/xt_LOG.c301
4 files changed, 217 insertions, 201 deletions
diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
index 06b4c6b07f52..aaec845de106 100644
--- a/include/net/netfilter/nf_log.h
+++ b/include/net/netfilter/nf_log.h
@@ -72,4 +72,10 @@ void nf_log_packet(struct net *net,
const struct nf_loginfo *li,
const char *fmt, ...);
+struct nf_log_buf;
+
+struct nf_log_buf *nf_log_buf_open(void);
+__printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...);
+void nf_log_buf_close(struct nf_log_buf *m);
+
#endif /* _NF_LOG_H */
diff --git a/include/net/netfilter/xt_log.h b/include/net/netfilter/xt_log.h
deleted file mode 100644
index 9d9756cca013..000000000000
--- a/include/net/netfilter/xt_log.h
+++ /dev/null
@@ -1,54 +0,0 @@
-#define S_SIZE (1024 - (sizeof(unsigned int) + 1))
-
-struct sbuff {
- unsigned int count;
- char buf[S_SIZE + 1];
-};
-static struct sbuff emergency, *emergency_ptr = &emergency;
-
-static __printf(2, 3) int sb_add(struct sbuff *m, const char *f, ...)
-{
- va_list args;
- int len;
-
- if (likely(m->count < S_SIZE)) {
- va_start(args, f);
- len = vsnprintf(m->buf + m->count, S_SIZE - m->count, f, args);
- va_end(args);
- if (likely(m->count + len < S_SIZE)) {
- m->count += len;
- return 0;
- }
- }
- m->count = S_SIZE;
- printk_once(KERN_ERR KBUILD_MODNAME " please increase S_SIZE\n");
- return -1;
-}
-
-static struct sbuff *sb_open(void)
-{
- struct sbuff *m = kmalloc(sizeof(*m), GFP_ATOMIC);
-
- if (unlikely(!m)) {
- local_bh_disable();
- do {
- m = xchg(&emergency_ptr, NULL);
- } while (!m);
- }
- m->count = 0;
- return m;
-}
-
-static void sb_close(struct sbuff *m)
-{
- m->buf[m->count] = 0;
- printk("%s\n", m->buf);
-
- if (likely(m != &emergency))
- kfree(m);
- else {
- emergency_ptr = m;
- local_bh_enable();
- }
-}
-
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 7a29a3a46172..0b6b2c874199 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -157,6 +157,63 @@ void nf_log_packet(struct net *net,
}
EXPORT_SYMBOL(nf_log_packet);
+#define S_SIZE (1024 - (sizeof(unsigned int) + 1))
+
+struct nf_log_buf {
+ unsigned int count;
+ char buf[S_SIZE + 1];
+};
+static struct nf_log_buf emergency, *emergency_ptr = &emergency;
+
+__printf(2, 3) int nf_log_buf_add(struct nf_log_buf *m, const char *f, ...)
+{
+ va_list args;
+ int len;
+
+ if (likely(m->count < S_SIZE)) {
+ va_start(args, f);
+ len = vsnprintf(m->buf + m->count, S_SIZE - m->count, f, args);
+ va_end(args);
+ if (likely(m->count + len < S_SIZE)) {
+ m->count += len;
+ return 0;
+ }
+ }
+ m->count = S_SIZE;
+ printk_once(KERN_ERR KBUILD_MODNAME " please increase S_SIZE\n");
+ return -1;
+}
+EXPORT_SYMBOL_GPL(nf_log_buf_add);
+
+struct nf_log_buf *nf_log_buf_open(void)
+{
+ struct nf_log_buf *m = kmalloc(sizeof(*m), GFP_ATOMIC);
+
+ if (unlikely(!m)) {
+ local_bh_disable();
+ do {
+ m = xchg(&emergency_ptr, NULL);
+ } while (!m);
+ }
+ m->count = 0;
+ return m;
+}
+EXPORT_SYMBOL_GPL(nf_log_buf_open);
+
+void nf_log_buf_close(struct nf_log_buf *m)
+{
+ m->buf[m->count] = 0;
+ printk("%s\n", m->buf);
+
+ if (likely(m != &emergency))
+ kfree(m);
+ else {
+ emergency_ptr = m;
+ local_bh_enable();
+ }
+}
+EXPORT_SYMBOL_GPL(nf_log_buf_close);
+
#ifdef CONFIG_PROC_FS
static void *seq_start(struct seq_file *seq, loff_t *pos)
{
diff --git a/net/netfilter/xt_LOG.c b/net/netfilter/xt_LOG.c
index e668d9797cf3..649b85fc5463 100644
--- a/net/netfilter/xt_LOG.c
+++ b/net/netfilter/xt_LOG.c
@@ -27,7 +27,6 @@
#include <linux/netfilter/xt_LOG.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
#include <net/netfilter/nf_log.h>
-#include <net/netfilter/xt_log.h>
static struct nf_loginfo default_loginfo = {
.type = NF_LOG_TYPE_LOG,
@@ -39,7 +38,7 @@ static struct nf_loginfo default_loginfo = {
},
};
-static int dump_udp_header(struct sbuff *m, const struct sk_buff *skb,
+static int dump_udp_header(struct nf_log_buf *m, const struct sk_buff *skb,
u8 proto, int fragment, unsigned int offset)
{
struct udphdr _udph;
@@ -47,9 +46,9 @@ static int dump_udp_header(struct sbuff *m, const struct sk_buff *skb,
if (proto == IPPROTO_UDP)
/* Max length: 10 "PROTO=UDP " */
- sb_add(m, "PROTO=UDP ");
+ nf_log_buf_add(m, "PROTO=UDP ");
else /* Max length: 14 "PROTO=UDPLITE " */
- sb_add(m, "PROTO=UDPLITE ");
+ nf_log_buf_add(m, "PROTO=UDPLITE ");
if (fragment)
goto out;
@@ -57,20 +56,20 @@ static int dump_udp_header(struct sbuff *m, const struct sk_buff *skb,
/* Max length: 25 "INCOMPLETE [65535 bytes] " */
uh = skb_header_pointer(skb, offset, sizeof(_udph), &_udph);
if (uh == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
return 1;
}
/* Max length: 20 "SPT=65535 DPT=65535 " */
- sb_add(m, "SPT=%u DPT=%u LEN=%u ", ntohs(uh->source), ntohs(uh->dest),
- ntohs(uh->len));
+ nf_log_buf_add(m, "SPT=%u DPT=%u LEN=%u ",
+ ntohs(uh->source), ntohs(uh->dest), ntohs(uh->len));
out:
return 0;
}
-static int dump_tcp_header(struct sbuff *m, const struct sk_buff *skb,
+static int dump_tcp_header(struct nf_log_buf *m, const struct sk_buff *skb,
u8 proto, int fragment, unsigned int offset,
unsigned int logflags)
{
@@ -78,7 +77,7 @@ static int dump_tcp_header(struct sbuff *m, const struct sk_buff *skb,
const struct tcphdr *th;
/* Max length: 10 "PROTO=TCP " */
- sb_add(m, "PROTO=TCP ");
+ nf_log_buf_add(m, "PROTO=TCP ");
if (fragment)
return 0;
@@ -86,40 +85,43 @@ static int dump_tcp_header(struct sbuff *m, const struct sk_buff *skb,
/* Max length: 25 "INCOMPLETE [65535 bytes] " */
th = skb_header_pointer(skb, offset, sizeof(_tcph), &_tcph);
if (th == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ", skb->len - offset);
return 1;
}
/* Max length: 20 "SPT=65535 DPT=65535 " */
- sb_add(m, "SPT=%u DPT=%u ", ntohs(th->source), ntohs(th->dest));
+ nf_log_buf_add(m, "SPT=%u DPT=%u ",
+ ntohs(th->source), ntohs(th->dest));
/* Max length: 30 "SEQ=4294967295 ACK=4294967295 " */
- if (logflags & XT_LOG_TCPSEQ)
- sb_add(m, "SEQ=%u ACK=%u ", ntohl(th->seq), ntohl(th->ack_seq));
+ if (logflags & XT_LOG_TCPSEQ) {
+ nf_log_buf_add(m, "SEQ=%u ACK=%u ",
+ ntohl(th->seq), ntohl(th->ack_seq));
+ }
/* Max length: 13 "WINDOW=65535 " */
- sb_add(m, "WINDOW=%u ", ntohs(th->window));
+ nf_log_buf_add(m, "WINDOW=%u ", ntohs(th->window));
/* Max length: 9 "RES=0x3C " */
- sb_add(m, "RES=0x%02x ", (u_int8_t)(ntohl(tcp_flag_word(th) &
+ nf_log_buf_add(m, "RES=0x%02x ", (u_int8_t)(ntohl(tcp_flag_word(th) &
TCP_RESERVED_BITS) >> 22));
/* Max length: 32 "CWR ECE URG ACK PSH RST SYN FIN " */
if (th->cwr)
- sb_add(m, "CWR ");
+ nf_log_buf_add(m, "CWR ");
if (th->ece)
- sb_add(m, "ECE ");
+ nf_log_buf_add(m, "ECE ");
if (th->urg)
- sb_add(m, "URG ");
+ nf_log_buf_add(m, "URG ");
if (th->ack)
- sb_add(m, "ACK ");
+ nf_log_buf_add(m, "ACK ");
if (th->psh)
- sb_add(m, "PSH ");
+ nf_log_buf_add(m, "PSH ");
if (th->rst)
- sb_add(m, "RST ");
+ nf_log_buf_add(m, "RST ");
if (th->syn)
- sb_add(m, "SYN ");
+ nf_log_buf_add(m, "SYN ");
if (th->fin)
- sb_add(m, "FIN ");
+ nf_log_buf_add(m, "FIN ");
/* Max length: 11 "URGP=65535 " */
- sb_add(m, "URGP=%u ", ntohs(th->urg_ptr));
+ nf_log_buf_add(m, "URGP=%u ", ntohs(th->urg_ptr));
if ((logflags & XT_LOG_TCPOPT) && th->doff*4 > sizeof(struct tcphdr)) {
u_int8_t _opt[60 - sizeof(struct tcphdr)];
@@ -130,22 +132,22 @@ static int dump_tcp_header(struct sbuff *m, const struct sk_buff *skb,
op = skb_header_pointer(skb, offset + sizeof(struct tcphdr),
optsize, _opt);
if (op == NULL) {
- sb_add(m, "OPT (TRUNCATED)");
+ nf_log_buf_add(m, "OPT (TRUNCATED)");
return 1;
}
/* Max length: 127 "OPT (" 15*4*2chars ") " */
- sb_add(m, "OPT (");
+ nf_log_buf_add(m, "OPT (");
for (i = 0; i < optsize; i++)
- sb_add(m, "%02X", op[i]);
+ nf_log_buf_add(m, "%02X", op[i]);
- sb_add(m, ") ");
+ nf_log_buf_add(m, ") ");
}
return 0;
}
-static void dump_sk_uid_gid(struct sbuff *m, struct sock *sk)
+static void dump_sk_uid_gid(struct nf_log_buf *m, struct sock *sk)
{
if (!sk || sk->sk_state == TCP_TIME_WAIT)
return;
@@ -153,7 +155,7 @@ static void dump_sk_uid_gid(struct sbuff *m, struct sock *sk)
read_lock_bh(&sk->sk_callback_lock);
if (sk->sk_socket && sk->sk_socket->file) {
const struct cred *cred = sk->sk_socket->file->f_cred;
- sb_add(m, "UID=%u GID=%u ",
+ nf_log_buf_add(m, "UID=%u GID=%u ",
from_kuid_munged(&init_user_ns, cred->fsuid),
from_kgid_munged(&init_user_ns, cred->fsgid));
}
@@ -161,10 +163,9 @@ static void dump_sk_uid_gid(struct sbuff *m, struct sock *sk)
}
/* One level of recursion won't kill us */
-static void dump_ipv4_packet(struct sbuff *m,
- const struct nf_loginfo *info,
- const struct sk_buff *skb,
- unsigned int iphoff)
+static void dump_ipv4_packet(struct nf_log_buf *m,
+ const struct nf_loginfo *info,
+ const struct sk_buff *skb, unsigned int iphoff)
{
struct iphdr _iph;
const struct iphdr *ih;
@@ -177,32 +178,32 @@ static void dump_ipv4_packet(struct sbuff *m,
ih = skb_header_pointer(skb, iphoff, sizeof(_iph), &_iph);
if (ih == NULL) {
- sb_add(m, "TRUNCATED");
+ nf_log_buf_add(m, "TRUNCATED");
return;
}
/* Important fields:
* TOS, len, DF/MF, fragment offset, TTL, src, dst, options. */
/* Max length: 40 "SRC=255.255.255.255 DST=255.255.255.255 " */
- sb_add(m, "SRC=%pI4 DST=%pI4 ",
+ nf_log_buf_add(m, "SRC=%pI4 DST=%pI4 ",
&ih->saddr, &ih->daddr);
/* Max length: 46 "LEN=65535 TOS=0xFF PREC=0xFF TTL=255 ID=65535 " */
- sb_add(m, "LEN=%u TOS=0x%02X PREC=0x%02X TTL=%u ID=%u ",
+ nf_log_buf_add(m, "LEN=%u TOS=0x%02X PREC=0x%02X TTL=%u ID=%u ",
ntohs(ih->tot_len), ih->tos & IPTOS_TOS_MASK,
ih->tos & IPTOS_PREC_MASK, ih->ttl, ntohs(ih->id));
/* Max length: 6 "CE DF MF " */
if (ntohs(ih->frag_off) & IP_CE)
- sb_add(m, "CE ");
+ nf_log_buf_add(m, "CE ");
if (ntohs(ih->frag_off) & IP_DF)
- sb_add(m, "DF ");
+ nf_log_buf_add(m, "DF ");
if (ntohs(ih->frag_off) & IP_MF)
- sb_add(m, "MF ");
+ nf_log_buf_add(m, "MF ");
/* Max length: 11 "FRAG:65535 " */
if (ntohs(ih->frag_off) & IP_OFFSET)
- sb_add(m, "FRAG:%u ", ntohs(ih->frag_off) & IP_OFFSET);
+ nf_log_buf_add(m, "FRAG:%u ", ntohs(ih->frag_off) & IP_OFFSET);
if ((logflags & XT_LOG_IPOPT) &&
ih->ihl * 4 > sizeof(struct iphdr)) {
@@ -214,15 +215,15 @@ static void dump_ipv4_packet(struct sbuff *m,
op = skb_header_pointer(skb, iphoff+sizeof(_iph),
optsize, _opt);
if (op == NULL) {
- sb_add(m, "TRUNCATED");
+ nf_log_buf_add(m, "TRUNCATED");
return;
}
/* Max length: 127 "OPT (" 15*4*2chars ") " */
- sb_add(m, "OPT (");
+ nf_log_buf_add(m, "OPT (");
for (i = 0; i < optsize; i++)
- sb_add(m, "%02X", op[i]);
- sb_add(m, ") ");
+ nf_log_buf_add(m, "%02X", op[i]);
+ nf_log_buf_add(m, ") ");
}
switch (ih->protocol) {
@@ -261,7 +262,7 @@ static void dump_ipv4_packet(struct sbuff *m,
[ICMP_ADDRESSREPLY] = 12 };
/* Max length: 11 "PROTO=ICMP " */
- sb_add(m, "PROTO=ICMP ");
+ nf_log_buf_add(m, "PROTO=ICMP ");
if (ntohs(ih->frag_off) & IP_OFFSET)
break;
@@ -270,19 +271,19 @@ static void dump_ipv4_packet(struct sbuff *m,
ich = skb_header_pointer(skb, iphoff + ih->ihl * 4,
sizeof(_icmph), &_icmph);
if (ich == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ",
- skb->len - iphoff - ih->ihl*4);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ",
+ skb->len - iphoff - ih->ihl*4);
break;
}
/* Max length: 18 "TYPE=255 CODE=255 " */
- sb_add(m, "TYPE=%u CODE=%u ", ich->type, ich->code);
+ nf_log_buf_add(m, "TYPE=%u CODE=%u ", ich->type, ich->code);
/* Max length: 25 "INCOMPLETE [65535 bytes] " */
if (ich->type <= NR_ICMP_TYPES &&
required_len[ich->type] &&
skb->len-iphoff-ih->ihl*4 < required_len[ich->type]) {
- sb_add(m, "INCOMPLETE [%u bytes] ",
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ",
skb->len - iphoff - ih->ihl*4);
break;
}
@@ -291,35 +292,37 @@ static void dump_ipv4_packet(struct sbuff *m,
case ICMP_ECHOREPLY:
case ICMP_ECHO:
/* Max length: 19 "ID=65535 SEQ=65535 " */
- sb_add(m, "ID=%u SEQ=%u ",
+ nf_log_buf_add(m, "ID=%u SEQ=%u ",
ntohs(ich->un.echo.id),
ntohs(ich->un.echo.sequence));
break;
case ICMP_PARAMETERPROB:
/* Max length: 14 "PARAMETER=255 " */
- sb_add(m, "PARAMETER=%u ",
+ nf_log_buf_add(m, "PARAMETER=%u ",
ntohl(ich->un.gateway) >> 24);
break;
case ICMP_REDIRECT:
/* Max length: 24 "GATEWAY=255.255.255.255 " */
- sb_add(m, "GATEWAY=%pI4 ", &ich->un.gateway);
+ nf_log_buf_add(m, "GATEWAY=%pI4 ", &ich->un.gateway);
/* Fall through */
case ICMP_DEST_UNREACH:
case ICMP_SOURCE_QUENCH:
case ICMP_TIME_EXCEEDED:
/* Max length: 3+maxlen */
if (!iphoff) { /* Only recurse once. */
- sb_add(m, "[");
+ nf_log_buf_add(m, "[");
dump_ipv4_packet(m, info, skb,
iphoff + ih->ihl*4+sizeof(_icmph));
- sb_add(m, "] ");
+ nf_log_buf_add(m, "] ");
}
/* Max length: 10 "MTU=65535 " */
if (ich->type == ICMP_DEST_UNREACH &&
- ich->code == ICMP_FRAG_NEEDED)
- sb_add(m, "MTU=%u ", ntohs(ich->un.frag.mtu));
+ ich->code == ICMP_FRAG_NEEDED) {
+ nf_log_buf_add(m, "MTU=%u ",
+ ntohs(ich->un.frag.mtu));
+ }
}
break;
}
@@ -332,19 +335,19 @@ static void dump_ipv4_packet(struct sbuff *m,
break;
/* Max length: 9 "PROTO=AH " */
- sb_add(m, "PROTO=AH ");
+ nf_log_buf_add(m, "PROTO=AH ");
/* Max length: 25 "INCOMPLETE [65535 bytes] " */
ah = skb_header_pointer(skb, iphoff+ih->ihl*4,
sizeof(_ahdr), &_ahdr);
if (ah == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ",
- skb->len - iphoff - ih->ihl*4);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ",
+ skb->len - iphoff - ih->ihl*4);
break;
}
/* Length: 15 "SPI=0xF1234567 " */
- sb_add(m, "SPI=0x%x ", ntohl(ah->spi));
+ nf_log_buf_add(m, "SPI=0x%x ", ntohl(ah->spi));
break;
}
case IPPROTO_ESP: {
@@ -352,7 +355,7 @@ static void dump_ipv4_packet(struct sbuff *m,
const struct ip_esp_hdr *eh;
/* Max length: 10 "PROTO=ESP " */
- sb_add(m, "PROTO=ESP ");
+ nf_log_buf_add(m, "PROTO=ESP ");
if (ntohs(ih->frag_off) & IP_OFFSET)
break;
@@ -361,18 +364,18 @@ static void dump_ipv4_packet(struct sbuff *m,
eh = skb_header_pointer(skb, iphoff+ih->ihl*4,
sizeof(_esph), &_esph);
if (eh == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ",
- skb->len - iphoff - ih->ihl*4);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ",
+ skb->len - iphoff - ih->ihl*4);
break;
}
/* Length: 15 "SPI=0xF1234567 " */
- sb_add(m, "SPI=0x%x ", ntohl(eh->spi));
+ nf_log_buf_add(m, "SPI=0x%x ", ntohl(eh->spi));
break;
}
/* Max length: 10 "PROTO 255 " */
default:
- sb_add(m, "PROTO=%u ", ih->protocol);
+ nf_log_buf_add(m, "PROTO=%u ", ih->protocol);
}
/* Max length: 15 "UID=4294967295 " */
@@ -381,7 +384,7 @@ static void dump_ipv4_packet(struct sbuff *m,
/* Max length: 16 "MARK=0xFFFFFFFF " */
if (!iphoff && skb->mark)
- sb_add(m, "MARK=0x%x ", skb->mark);
+ nf_log_buf_add(m, "MARK=0x%x ", skb->mark);
/* Proto Max log string length */
/* IP: 40+46+6+11+127 = 230 */
@@ -398,9 +401,9 @@ static void dump_ipv4_packet(struct sbuff *m,
/* maxlen = 230+ 91 + 230 + 252 = 803 */
}
-static void dump_ipv4_mac_header(struct sbuff *m,
- const struct nf_loginfo *info,
- const struct sk_buff *skb)
+static void dump_ipv4_mac_header(struct nf_log_buf *m,
+ const struct nf_loginfo *info,
+ const struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
unsigned int logflags = 0;
@@ -413,30 +416,30 @@ static void dump_ipv4_mac_header(struct sbuff *m,
switch (dev->type) {
case ARPHRD_ETHER:
- sb_add(m, "MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
- eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
- ntohs(eth_hdr(skb)->h_proto));
+ nf_log_buf_add(m, "MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
+ eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
+ ntohs(eth_hdr(skb)->h_proto));
return;
default:
break;
}
fallback:
- sb_add(m, "MAC=");
+ nf_log_buf_add(m, "MAC=");
if (dev->hard_header_len &&
skb->mac_header != skb->network_header) {
const unsigned char *p = skb_mac_header(skb);
unsigned int i;
- sb_add(m, "%02x", *p++);
+ nf_log_buf_add(m, "%02x", *p++);
for (i = 1; i < dev->hard_header_len; i++, p++)
- sb_add(m, ":%02x", *p);
+ nf_log_buf_add(m, ":%02x", *p);
}
- sb_add(m, " ");
+ nf_log_buf_add(m, " ");
}
static void
-log_packet_common(struct sbuff *m,
+log_packet_common(struct nf_log_buf *m,
u_int8_t pf,
unsigned int hooknum,
const struct sk_buff *skb,
@@ -445,10 +448,10 @@ log_packet_common(struct sbuff *m,
const struct nf_loginfo *loginfo,
const char *prefix)
{
- sb_add(m, KERN_SOH "%c%sIN=%s OUT=%s ",
- '0' + loginfo->u.log.level, prefix,
- in ? in->name : "",
- out ? out->name : "");
+ nf_log_buf_add(m, KERN_SOH "%c%sIN=%s OUT=%s ",
+ '0' + loginfo->u.log.level, prefix,
+ in ? in->name : "",
+ out ? out->name : "");
#ifdef CONFIG_BRIDGE_NETFILTER
if (skb->nf_bridge) {
const struct net_device *physindev;
@@ -456,10 +459,10 @@ log_packet_common(struct sbuff *m,
physindev = skb->nf_bridge->physindev;
if (physindev && in != physindev)
- sb_add(m, "PHYSIN=%s ", physindev->name);
+ nf_log_buf_add(m, "PHYSIN=%s ", physindev->name);
physoutdev = skb->nf_bridge->physoutdev;
if (physoutdev && out != physoutdev)
- sb_add(m, "PHYSOUT=%s ", physoutdev->name);
+ nf_log_buf_add(m, "PHYSOUT=%s ", physoutdev->name);
}
#endif
}
@@ -475,13 +478,13 @@ ipt_log_packet(struct net *net,
const struct nf_loginfo *loginfo,
const char *prefix)
{
- struct sbuff *m;
+ struct nf_log_buf *m;
/* FIXME: Disabled from containers until syslog ns is supported */
if (!net_eq(net, &init_net))
return;
- m = sb_open();
+ m = nf_log_buf_open();
if (!loginfo)
loginfo = &default_loginfo;
@@ -493,15 +496,15 @@ ipt_log_packet(struct net *net,
dump_ipv4_packet(m, loginfo, skb, 0);
- sb_close(m);
+ nf_log_buf_close(m);
}
#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
/* One level of recursion won't kill us */
-static void dump_ipv6_packet(struct sbuff *m,
- const struct nf_loginfo *info,
- const struct sk_buff *skb, unsigned int ip6hoff,
- int recurse)
+static void dump_ipv6_packet(struct nf_log_buf *m,
+ const struct nf_loginfo *info,
+ const struct sk_buff *skb, unsigned int ip6hoff,
+ int recurse)
{
u_int8_t currenthdr;
int fragment;
@@ -518,19 +521,18 @@ static void dump_ipv6_packet(struct sbuff *m,
ih = skb_header_pointer(skb, ip6hoff, sizeof(_ip6h), &_ip6h);
if (ih == NULL) {
- sb_add(m, "TRUNCATED");
+ nf_log_buf_add(m, "TRUNCATED");
return;
}
/* Max length: 88 "SRC=0000.0000.0000.0000.0000.0000.0000.0000 DST=0000.0000.0000.0000.0000.0000.0000.0000 " */
- sb_add(m, "SRC=%pI6 DST=%pI6 ", &ih->saddr, &ih->daddr);
+ nf_log_buf_add(m, "SRC=%pI6 DST=%pI6 ", &ih->saddr, &ih->daddr);
/* Max length: 44 "LEN=65535 TC=255 HOPLIMIT=255 FLOWLBL=FFFFF " */
- sb_add(m, "LEN=%Zu TC=%u HOPLIMIT=%u FLOWLBL=%u ",
- ntohs(ih->payload_len) + sizeof(struct ipv6hdr),
- (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20,
- ih->hop_limit,
- (ntohl(*(__be32 *)ih) & 0x000fffff));
+ nf_log_buf_add(m, "LEN=%Zu TC=%u HOPLIMIT=%u FLOWLBL=%u ",
+ ntohs(ih->payload_len) + sizeof(struct ipv6hdr),
+ (ntohl(*(__be32 *)ih) & 0x0ff00000) >> 20,
+ ih->hop_limit, (ntohl(*(__be32 *)ih) & 0x000fffff));
fragment = 0;
ptr = ip6hoff + sizeof(struct ipv6hdr);
@@ -541,35 +543,35 @@ static void dump_ipv6_packet(struct sbuff *m,
hp = skb_header_pointer(skb, ptr, sizeof(_hdr), &_hdr);
if (hp == NULL) {
- sb_add(m, "TRUNCATED");
+ nf_log_buf_add(m, "TRUNCATED");
return;
}
/* Max length: 48 "OPT (...) " */
if (logflags & XT_LOG_IPOPT)
- sb_add(m, "OPT ( ");
+ nf_log_buf_add(m, "OPT ( ");
switch (currenthdr) {
case IPPROTO_FRAGMENT: {
struct frag_hdr _fhdr;
const struct frag_hdr *fh;
- sb_add(m, "FRAG:");
+ nf_log_buf_add(m, "FRAG:");
fh = skb_header_pointer(skb, ptr, sizeof(_fhdr),
&_fhdr);
if (fh == NULL) {
- sb_add(m, "TRUNCATED ");
+ nf_log_buf_add(m, "TRUNCATED ");
return;
}
/* Max length: 6 "65535 " */
- sb_add(m, "%u ", ntohs(fh->frag_off) & 0xFFF8);
+ nf_log_buf_add(m, "%u ", ntohs(fh->frag_off) & 0xFFF8);
/* Max length: 11 "INCOMPLETE " */
if (fh->frag_off & htons(0x0001))
- sb_add(m, "INCOMPLETE ");
+ nf_log_buf_add(m, "INCOMPLETE ");
- sb_add(m, "ID:%08x ", ntohl(fh->identification));
+ nf_log_buf_add(m, "ID:%08x ", ntohl(fh->identification));
if (ntohs(fh->frag_off) & 0xFFF8)
fragment = 1;
@@ -583,7 +585,7 @@ static void dump_ipv6_packet(struct sbuff *m,
case IPPROTO_HOPOPTS:
if (fragment) {
if (logflags & XT_LOG_IPOPT)
- sb_add(m, ")");
+ nf_log_buf_add(m, ")");
return;
}
hdrlen = ipv6_optlen(hp);
@@ -595,10 +597,10 @@ static void dump_ipv6_packet(struct sbuff *m,
const struct ip_auth_hdr *ah;
/* Max length: 3 "AH " */
- sb_add(m, "AH ");
+ nf_log_buf_add(m, "AH ");
if (fragment) {
- sb_add(m, ")");
+ nf_log_buf_add(m, ")");
return;
}
@@ -609,13 +611,13 @@ static void dump_ipv6_packet(struct sbuff *m,
* Max length: 26 "INCOMPLETE [65535
* bytes] )"
*/
- sb_add(m, "INCOMPLETE [%u bytes] )",
- skb->len - ptr);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] )",
+ skb->len - ptr);
return;
}
/* Length: 15 "SPI=0xF1234567 */
- sb_add(m, "SPI=0x%x ", ntohl(ah->spi));
+ nf_log_buf_add(m, "SPI=0x%x ", ntohl(ah->spi));
}
@@ -627,10 +629,10 @@ static void dump_ipv6_packet(struct sbuff *m,
const struct ip_esp_hdr *eh;
/* Max length: 4 "ESP " */
- sb_add(m, "ESP ");
+ nf_log_buf_add(m, "ESP ");
if (fragment) {
- sb_add(m, ")");
+ nf_log_buf_add(m, ")");
return;
}
@@ -640,23 +642,23 @@ static void dump_ipv6_packet(struct sbuff *m,
eh = skb_header_pointer(skb, ptr, sizeof(_esph),
&_esph);
if (eh == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] )",
- skb->len - ptr);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] )",
+ skb->len - ptr);
return;
}
/* Length: 16 "SPI=0xF1234567 )" */
- sb_add(m, "SPI=0x%x )", ntohl(eh->spi));
+ nf_log_buf_add(m, "SPI=0x%x )", ntohl(eh->spi));
}
return;
default:
/* Max length: 20 "Unknown Ext Hdr 255" */
- sb_add(m, "Unknown Ext Hdr %u", currenthdr);
+ nf_log_buf_add(m, "Unknown Ext Hdr %u", currenthdr);
return;
}
if (logflags & XT_LOG_IPOPT)
- sb_add(m, ") ");
+ nf_log_buf_add(m, ") ");
currenthdr = hp->nexthdr;
ptr += hdrlen;
@@ -678,7 +680,7 @@ static void dump_ipv6_packet(struct sbuff *m,
const struct icmp6hdr *ic;
/* Max length: 13 "PROTO=ICMPv6 " */
- sb_add(m, "PROTO=ICMPv6 ");
+ nf_log_buf_add(m, "PROTO=ICMPv6 ");
if (fragment)
break;
@@ -686,20 +688,22 @@ static void dump_ipv6_packet(struct sbuff *m,
/* Max length: 25 "INCOMPLETE [65535 bytes] " */
ic = skb_header_pointer(skb, ptr, sizeof(_icmp6h), &_icmp6h);
if (ic == NULL) {
- sb_add(m, "INCOMPLETE [%u bytes] ", skb->len - ptr);
+ nf_log_buf_add(m, "INCOMPLETE [%u bytes] ",
+ skb->len - ptr);
return;
}
/* Max length: 18 "TYPE=255 CODE=255 " */
- sb_add(m, "TYPE=%u CODE=%u ", ic->icmp6_type, ic->icmp6_code);
+ nf_log_buf_add(m, "TYPE=%u CODE=%u ",
+ ic->icmp6_type, ic->icmp6_code);
switch (ic->icmp6_type) {
case ICMPV6_ECHO_REQUEST:
case ICMPV6_ECHO_REPLY:
/* Max length: 19 "ID=65535 SEQ=65535 " */
- sb_add(m, "ID=%u SEQ=%u ",
- ntohs(ic->icmp6_identifier),
- ntohs(ic->icmp6_sequence));
+ nf_log_buf_add(m, "ID=%u SEQ=%u ",
+ ntohs(ic->icmp6_identifier),
+ ntohs(ic->icmp6_sequence));
break;
case ICMPV6_MGM_QUERY:
case ICMPV6_MGM_REPORT:
@@ -708,28 +712,30 @@ static void dump_ipv6_packet(struct sbuff *m,
case ICMPV6_PARAMPROB:
/* Max length: 17 "POINTER=ffffffff " */
- sb_add(m, "POINTER=%08x ", ntohl(ic->icmp6_pointer));
+ nf_log_buf_add(m, "POINTER=%08x ",
+ ntohl(ic->icmp6_pointer));
/* Fall through */
case ICMPV6_DEST_UNREACH:
case ICMPV6_PKT_TOOBIG:
case ICMPV6_TIME_EXCEED:
/* Max length: 3+maxlen */
if (recurse) {
- sb_add(m, "[");
+ nf_log_buf_add(m, "[");
dump_ipv6_packet(m, info, skb,
ptr + sizeof(_icmp6h), 0);
- sb_add(m, "] ");
+ nf_log_buf_add(m, "] ");
}
/* Max length: 10 "MTU=65535 " */
if (ic->icmp6_type == ICMPV6_PKT_TOOBIG)
- sb_add(m, "MTU=%u ", ntohl(ic->icmp6_mtu));
+ nf_log_buf_add(m, "MTU=%u ",
+ ntohl(ic->icmp6_mtu));
}
break;
}
/* Max length: 10 "PROTO=255 " */
default:
- sb_add(m, "PROTO=%u ", currenthdr);
+ nf_log_buf_add(m, "PROTO=%u ", currenthdr);
}
/* Max length: 15 "UID=4294967295 " */
@@ -738,12 +744,12 @@ static void dump_ipv6_packet(struct sbuff *m,
/* Max length: 16 "MARK=0xFFFFFFFF " */
if (recurse && skb->mark)
- sb_add(m, "MARK=0x%x ", skb->mark);
+ nf_log_buf_add(m, "MARK=0x%x ", skb->mark);
}
-static void dump_ipv6_mac_header(struct sbuff *m,
- const struct nf_loginfo *info,
- const struct sk_buff *skb)
+static void dump_ipv6_mac_header(struct nf_log_buf *m,
+ const struct nf_loginfo *info,
+ const struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
unsigned int logflags = 0;
@@ -756,16 +762,16 @@ static void dump_ipv6_mac_header(struct sbuff *m,
switch (dev->type) {
case ARPHRD_ETHER:
- sb_add(m, "MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
- eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
- ntohs(eth_hdr(skb)->h_proto));
+ nf_log_buf_add(m, "MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
+ eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
+ ntohs(eth_hdr(skb)->h_proto));
return;
default:
break;
}
fallback:
- sb_add(m, "MAC=");
+ nf_log_buf_add(m, "MAC=");
if (dev->hard_header_len &&
skb->mac_header != skb->network_header) {
const unsigned char *p = skb_mac_header(skb);
@@ -780,20 +786,21 @@ fallback:
}
if (p != NULL) {
- sb_add(m, "%02x", *p++);
+ nf_log_buf_add(m, "%02x", *p++);
for (i = 1; i < len; i++)
- sb_add(m, ":%02x", *p++);
+ nf_log_buf_add(m, ":%02x", *p++);
}
- sb_add(m, " ");
+ nf_log_buf_add(m, " ");
if (dev->type == ARPHRD_SIT) {
const struct iphdr *iph =
(struct iphdr *)skb_mac_header(skb);
- sb_add(m, "TUNNEL=%pI4->%pI4 ", &iph->saddr,
- &iph->daddr);
+ nf_log_buf_add(m, "TUNNEL=%pI4->%pI4 ",
+ &iph->saddr, &iph->daddr);
}
- } else
- sb_add(m, " ");
+ } else {
+ nf_log_buf_add(m, " ");
+ }
}
static void
@@ -806,13 +813,13 @@ ip6t_log_packet(struct net *net,
const struct nf_loginfo *loginfo,
const char *prefix)
{
- struct sbuff *m;
+ struct nf_log_buf *m;
/* FIXME: Disabled from containers until syslog ns is supported */
if (!net_eq(net, &init_net))
return;
- m = sb_open();
+ m = nf_log_buf_open();
if (!loginfo)
loginfo = &default_loginfo;
@@ -824,7 +831,7 @@ ip6t_log_packet(struct net *net,
dump_ipv6_packet(m, loginfo, skb, skb_network_offset(skb), 1);
- sb_close(m);
+ nf_log_buf_close(m);
}
#endif
generated by cgit (git 2.34.1) at 2024-06-11 07:58:38 +0000