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-rw-r--r--net/ipv6/netfilter/ip6_tables.c202
-rw-r--r--net/ipv6/netfilter/ip6t_HL.c14
-rw-r--r--net/ipv6/netfilter/ip6t_LOG.c57
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c45
-rw-r--r--net/ipv6/netfilter/ip6t_ah.c82
-rw-r--r--net/ipv6/netfilter/ip6t_eui64.c20
-rw-r--r--net/ipv6/netfilter/ip6t_frag.c111
-rw-r--r--net/ipv6/netfilter/ip6t_hbh.c88
-rw-r--r--net/ipv6/netfilter/ip6t_hl.c22
-rw-r--r--net/ipv6/netfilter/ip6t_ipv6header.c22
-rw-r--r--net/ipv6/netfilter/ip6t_mh.c30
-rw-r--r--net/ipv6/netfilter/ip6t_owner.c26
-rw-r--r--net/ipv6/netfilter/ip6t_rt.c134
-rw-r--r--net/ipv6/netfilter/ip6table_mangle.c6
-rw-r--r--net/ipv6/netfilter/ip6table_raw.c6
-rw-r--r--net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c47
-rw-r--r--net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c60
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c52
18 files changed, 522 insertions, 502 deletions
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 9aa624026688..aeda617246b7 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -96,13 +96,13 @@ ip6t_ext_hdr(u8 nexthdr)
}
/* Returns whether matches rule or not. */
-static inline int
+static inline bool
ip6_packet_match(const struct sk_buff *skb,
const char *indev,
const char *outdev,
const struct ip6t_ip6 *ip6info,
unsigned int *protoff,
- int *fragoff, int *hotdrop)
+ int *fragoff, bool *hotdrop)
{
size_t i;
unsigned long ret;
@@ -122,7 +122,7 @@ ip6_packet_match(const struct sk_buff *skb,
dprintf("DST: %u. Mask: %u. Target: %u.%s\n", ip->daddr,
ipinfo->dmsk.s_addr, ipinfo->dst.s_addr,
ipinfo->invflags & IP6T_INV_DSTIP ? " (INV)" : "");*/
- return 0;
+ return false;
}
/* Look for ifname matches; this should unroll nicely. */
@@ -136,7 +136,7 @@ ip6_packet_match(const struct sk_buff *skb,
dprintf("VIA in mismatch (%s vs %s).%s\n",
indev, ip6info->iniface,
ip6info->invflags&IP6T_INV_VIA_IN ?" (INV)":"");
- return 0;
+ return false;
}
for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned long); i++) {
@@ -149,7 +149,7 @@ ip6_packet_match(const struct sk_buff *skb,
dprintf("VIA out mismatch (%s vs %s).%s\n",
outdev, ip6info->outiface,
ip6info->invflags&IP6T_INV_VIA_OUT ?" (INV)":"");
- return 0;
+ return false;
}
/* ... might want to do something with class and flowlabel here ... */
@@ -162,8 +162,8 @@ ip6_packet_match(const struct sk_buff *skb,
protohdr = ipv6_find_hdr(skb, protoff, -1, &_frag_off);
if (protohdr < 0) {
if (_frag_off == 0)
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
*fragoff = _frag_off;
@@ -174,34 +174,34 @@ ip6_packet_match(const struct sk_buff *skb,
if (ip6info->proto == protohdr) {
if(ip6info->invflags & IP6T_INV_PROTO) {
- return 0;
+ return false;
}
- return 1;
+ return true;
}
/* We need match for the '-p all', too! */
if ((ip6info->proto != 0) &&
!(ip6info->invflags & IP6T_INV_PROTO))
- return 0;
+ return false;
}
- return 1;
+ return true;
}
/* should be ip6 safe */
-static inline int
+static inline bool
ip6_checkentry(const struct ip6t_ip6 *ipv6)
{
if (ipv6->flags & ~IP6T_F_MASK) {
duprintf("Unknown flag bits set: %08X\n",
ipv6->flags & ~IP6T_F_MASK);
- return 0;
+ return false;
}
if (ipv6->invflags & ~IP6T_INV_MASK) {
duprintf("Unknown invflag bits set: %08X\n",
ipv6->invflags & ~IP6T_INV_MASK);
- return 0;
+ return false;
}
- return 1;
+ return true;
}
static unsigned int
@@ -219,20 +219,20 @@ ip6t_error(struct sk_buff **pskb,
}
static inline
-int do_match(struct ip6t_entry_match *m,
- const struct sk_buff *skb,
- const struct net_device *in,
- const struct net_device *out,
- int offset,
- unsigned int protoff,
- int *hotdrop)
+bool do_match(struct ip6t_entry_match *m,
+ const struct sk_buff *skb,
+ const struct net_device *in,
+ const struct net_device *out,
+ int offset,
+ unsigned int protoff,
+ bool *hotdrop)
{
/* Stop iteration if it doesn't match */
if (!m->u.kernel.match->match(skb, in, out, m->u.kernel.match, m->data,
offset, protoff, hotdrop))
- return 1;
+ return true;
else
- return 0;
+ return false;
}
static inline struct ip6t_entry *
@@ -241,6 +241,113 @@ get_entry(void *base, unsigned int offset)
return (struct ip6t_entry *)(base + offset);
}
+/* All zeroes == unconditional rule. */
+static inline int
+unconditional(const struct ip6t_ip6 *ipv6)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof(*ipv6); i++)
+ if (((char *)ipv6)[i])
+ break;
+
+ return (i == sizeof(*ipv6));
+}
+
+#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
+ defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
+/* This cries for unification! */
+static const char *hooknames[] = {
+ [NF_IP6_PRE_ROUTING] = "PREROUTING",
+ [NF_IP6_LOCAL_IN] = "INPUT",
+ [NF_IP6_FORWARD] = "FORWARD",
+ [NF_IP6_LOCAL_OUT] = "OUTPUT",
+ [NF_IP6_POST_ROUTING] = "POSTROUTING",
+};
+
+enum nf_ip_trace_comments {
+ NF_IP6_TRACE_COMMENT_RULE,
+ NF_IP6_TRACE_COMMENT_RETURN,
+ NF_IP6_TRACE_COMMENT_POLICY,
+};
+
+static const char *comments[] = {
+ [NF_IP6_TRACE_COMMENT_RULE] = "rule",
+ [NF_IP6_TRACE_COMMENT_RETURN] = "return",
+ [NF_IP6_TRACE_COMMENT_POLICY] = "policy",
+};
+
+static struct nf_loginfo trace_loginfo = {
+ .type = NF_LOG_TYPE_LOG,
+ .u = {
+ .log = {
+ .level = 4,
+ .logflags = NF_LOG_MASK,
+ },
+ },
+};
+
+static inline int
+get_chainname_rulenum(struct ip6t_entry *s, struct ip6t_entry *e,
+ char *hookname, char **chainname,
+ char **comment, unsigned int *rulenum)
+{
+ struct ip6t_standard_target *t = (void *)ip6t_get_target(s);
+
+ if (strcmp(t->target.u.kernel.target->name, IP6T_ERROR_TARGET) == 0) {
+ /* Head of user chain: ERROR target with chainname */
+ *chainname = t->target.data;
+ (*rulenum) = 0;
+ } else if (s == e) {
+ (*rulenum)++;
+
+ if (s->target_offset == sizeof(struct ip6t_entry)
+ && strcmp(t->target.u.kernel.target->name,
+ IP6T_STANDARD_TARGET) == 0
+ && t->verdict < 0
+ && unconditional(&s->ipv6)) {
+ /* Tail of chains: STANDARD target (return/policy) */
+ *comment = *chainname == hookname
+ ? (char *)comments[NF_IP6_TRACE_COMMENT_POLICY]
+ : (char *)comments[NF_IP6_TRACE_COMMENT_RETURN];
+ }
+ return 1;
+ } else
+ (*rulenum)++;
+
+ return 0;
+}
+
+static void trace_packet(struct sk_buff *skb,
+ unsigned int hook,
+ const struct net_device *in,
+ const struct net_device *out,
+ char *tablename,
+ struct xt_table_info *private,
+ struct ip6t_entry *e)
+{
+ void *table_base;
+ struct ip6t_entry *root;
+ char *hookname, *chainname, *comment;
+ unsigned int rulenum = 0;
+
+ table_base = (void *)private->entries[smp_processor_id()];
+ root = get_entry(table_base, private->hook_entry[hook]);
+
+ hookname = chainname = (char *)hooknames[hook];
+ comment = (char *)comments[NF_IP6_TRACE_COMMENT_RULE];
+
+ IP6T_ENTRY_ITERATE(root,
+ private->size - private->hook_entry[hook],
+ get_chainname_rulenum,
+ e, hookname, &chainname, &comment, &rulenum);
+
+ nf_log_packet(AF_INET6, hook, skb, in, out, &trace_loginfo,
+ "TRACE: %s:%s:%s:%u ",
+ tablename, chainname, comment, rulenum);
+}
+#endif
+
/* Returns one of the generic firewall policies, like NF_ACCEPT. */
unsigned int
ip6t_do_table(struct sk_buff **pskb,
@@ -252,7 +359,7 @@ ip6t_do_table(struct sk_buff **pskb,
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
int offset = 0;
unsigned int protoff = 0;
- int hotdrop = 0;
+ bool hotdrop = false;
/* Initializing verdict to NF_DROP keeps gcc happy. */
unsigned int verdict = NF_DROP;
const char *indev, *outdev;
@@ -298,6 +405,14 @@ ip6t_do_table(struct sk_buff **pskb,
t = ip6t_get_target(e);
IP_NF_ASSERT(t->u.kernel.target);
+
+#if defined(CONFIG_NETFILTER_XT_TARGET_TRACE) || \
+ defined(CONFIG_NETFILTER_XT_TARGET_TRACE_MODULE)
+ /* The packet is traced: log it */
+ if (unlikely((*pskb)->nf_trace))
+ trace_packet(*pskb, hook, in, out,
+ table->name, private, e);
+#endif
/* Standard target? */
if (!t->u.kernel.target->target) {
int v;
@@ -377,19 +492,6 @@ ip6t_do_table(struct sk_buff **pskb,
#endif
}
-/* All zeroes == unconditional rule. */
-static inline int
-unconditional(const struct ip6t_ip6 *ipv6)
-{
- unsigned int i;
-
- for (i = 0; i < sizeof(*ipv6); i++)
- if (((char *)ipv6)[i])
- break;
-
- return (i == sizeof(*ipv6));
-}
-
/* Figures out from what hook each rule can be called: returns 0 if
there are loops. Puts hook bitmask in comefrom. */
static int
@@ -1282,16 +1384,16 @@ void ip6t_unregister_table(struct xt_table *table)
}
/* Returns 1 if the type and code is matched by the range, 0 otherwise */
-static inline int
+static inline bool
icmp6_type_code_match(u_int8_t test_type, u_int8_t min_code, u_int8_t max_code,
u_int8_t type, u_int8_t code,
- int invert)
+ bool invert)
{
return (type == test_type && code >= min_code && code <= max_code)
^ invert;
}
-static int
+static bool
icmp6_match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -1299,22 +1401,22 @@ icmp6_match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
struct icmp6hdr _icmp, *ic;
const struct ip6t_icmp *icmpinfo = matchinfo;
/* Must not be a fragment. */
if (offset)
- return 0;
+ return false;
ic = skb_header_pointer(skb, protoff, sizeof(_icmp), &_icmp);
if (ic == NULL) {
/* We've been asked to examine this packet, and we
can't. Hence, no choice but to drop. */
duprintf("Dropping evil ICMP tinygram.\n");
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
return icmp6_type_code_match(icmpinfo->type,
@@ -1325,7 +1427,7 @@ icmp6_match(const struct sk_buff *skb,
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
icmp6_checkentry(const char *tablename,
const void *entry,
const struct xt_match *match,
@@ -1339,13 +1441,13 @@ icmp6_checkentry(const char *tablename,
}
/* The built-in targets: standard (NULL) and error. */
-static struct xt_target ip6t_standard_target = {
+static struct xt_target ip6t_standard_target __read_mostly = {
.name = IP6T_STANDARD_TARGET,
.targetsize = sizeof(int),
.family = AF_INET6,
};
-static struct xt_target ip6t_error_target = {
+static struct xt_target ip6t_error_target __read_mostly = {
.name = IP6T_ERROR_TARGET,
.target = ip6t_error,
.targetsize = IP6T_FUNCTION_MAXNAMELEN,
@@ -1362,7 +1464,7 @@ static struct nf_sockopt_ops ip6t_sockopts = {
.get = do_ip6t_get_ctl,
};
-static struct xt_match icmp6_matchstruct = {
+static struct xt_match icmp6_matchstruct __read_mostly = {
.name = "icmp6",
.match = &icmp6_match,
.matchsize = sizeof(struct ip6t_icmp),
@@ -1395,7 +1497,7 @@ static int __init ip6_tables_init(void)
if (ret < 0)
goto err5;
- printk("ip6_tables: (C) 2000-2006 Netfilter Core Team\n");
+ printk(KERN_INFO "ip6_tables: (C) 2000-2006 Netfilter Core Team\n");
return 0;
err5:
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index 4115a576ba25..ad4d94310b87 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -58,28 +58,28 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
return XT_CONTINUE;
}
-static int ip6t_hl_checkentry(const char *tablename,
+static bool ip6t_hl_checkentry(const char *tablename,
const void *entry,
const struct xt_target *target,
void *targinfo,
unsigned int hook_mask)
{
- struct ip6t_HL_info *info = targinfo;
+ const struct ip6t_HL_info *info = targinfo;
if (info->mode > IP6T_HL_MAXMODE) {
printk(KERN_WARNING "ip6t_HL: invalid or unknown Mode %u\n",
info->mode);
- return 0;
+ return false;
}
- if ((info->mode != IP6T_HL_SET) && (info->hop_limit == 0)) {
+ if (info->mode != IP6T_HL_SET && info->hop_limit == 0) {
printk(KERN_WARNING "ip6t_HL: increment/decrement doesn't "
"make sense with value 0\n");
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_target ip6t_HL = {
+static struct xt_target ip6t_HL __read_mostly = {
.name = "HL",
.family = AF_INET6,
.target = ip6t_hl_target,
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 5bb9cd349350..b05327ebd332 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -32,12 +32,6 @@ struct in_device;
#include <net/route.h>
#include <linux/netfilter_ipv6/ip6t_LOG.h>
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/* Use lock to serialize, so printks don't overlap */
static DEFINE_SPINLOCK(log_lock);
@@ -48,7 +42,8 @@ static void dump_packet(const struct nf_loginfo *info,
{
u_int8_t currenthdr;
int fragment;
- struct ipv6hdr _ip6h, *ih;
+ struct ipv6hdr _ip6h;
+ const struct ipv6hdr *ih;
unsigned int ptr;
unsigned int hdrlen = 0;
unsigned int logflags;
@@ -78,7 +73,8 @@ static void dump_packet(const struct nf_loginfo *info,
ptr = ip6hoff + sizeof(struct ipv6hdr);
currenthdr = ih->nexthdr;
while (currenthdr != NEXTHDR_NONE && ip6t_ext_hdr(currenthdr)) {
- struct ipv6_opt_hdr _hdr, *hp;
+ struct ipv6_opt_hdr _hdr;
+ const struct ipv6_opt_hdr *hp;
hp = skb_header_pointer(skb, ptr, sizeof(_hdr), &_hdr);
if (hp == NULL) {
@@ -92,7 +88,8 @@ static void dump_packet(const struct nf_loginfo *info,
switch (currenthdr) {
case IPPROTO_FRAGMENT: {
- struct frag_hdr _fhdr, *fh;
+ struct frag_hdr _fhdr;
+ const struct frag_hdr *fh;
printk("FRAG:");
fh = skb_header_pointer(skb, ptr, sizeof(_fhdr),
@@ -131,7 +128,8 @@ static void dump_packet(const struct nf_loginfo *info,
/* Max Length */
case IPPROTO_AH:
if (logflags & IP6T_LOG_IPOPT) {
- struct ip_auth_hdr _ahdr, *ah;
+ struct ip_auth_hdr _ahdr;
+ const struct ip_auth_hdr *ah;
/* Max length: 3 "AH " */
printk("AH ");
@@ -162,7 +160,8 @@ static void dump_packet(const struct nf_loginfo *info,
break;
case IPPROTO_ESP:
if (logflags & IP6T_LOG_IPOPT) {
- struct ip_esp_hdr _esph, *eh;
+ struct ip_esp_hdr _esph;
+ const struct ip_esp_hdr *eh;
/* Max length: 4 "ESP " */
printk("ESP ");
@@ -202,7 +201,8 @@ static void dump_packet(const struct nf_loginfo *info,
switch (currenthdr) {
case IPPROTO_TCP: {
- struct tcphdr _tcph, *th;
+ struct tcphdr _tcph;
+ const struct tcphdr *th;
/* Max length: 10 "PROTO=TCP " */
printk("PROTO=TCP ");
@@ -250,7 +250,8 @@ static void dump_packet(const struct nf_loginfo *info,
if ((logflags & IP6T_LOG_TCPOPT)
&& th->doff * 4 > sizeof(struct tcphdr)) {
- u_int8_t _opt[60 - sizeof(struct tcphdr)], *op;
+ u_int8_t _opt[60 - sizeof(struct tcphdr)];
+ const u_int8_t *op;
unsigned int i;
unsigned int optsize = th->doff * 4
- sizeof(struct tcphdr);
@@ -273,7 +274,8 @@ static void dump_packet(const struct nf_loginfo *info,
}
case IPPROTO_UDP:
case IPPROTO_UDPLITE: {
- struct udphdr _udph, *uh;
+ struct udphdr _udph;
+ const struct udphdr *uh;
if (currenthdr == IPPROTO_UDP)
/* Max length: 10 "PROTO=UDP " */
@@ -298,7 +300,8 @@ static void dump_packet(const struct nf_loginfo *info,
break;
}
case IPPROTO_ICMPV6: {
- struct icmp6hdr _icmp6h, *ic;
+ struct icmp6hdr _icmp6h;
+ const struct icmp6hdr *ic;
/* Max length: 13 "PROTO=ICMPv6 " */
printk("PROTO=ICMPv6 ");
@@ -448,27 +451,27 @@ ip6t_log_target(struct sk_buff **pskb,
}
-static int ip6t_log_checkentry(const char *tablename,
- const void *entry,
- const struct xt_target *target,
- void *targinfo,
- unsigned int hook_mask)
+static bool ip6t_log_checkentry(const char *tablename,
+ const void *entry,
+ const struct xt_target *target,
+ void *targinfo,
+ unsigned int hook_mask)
{
const struct ip6t_log_info *loginfo = targinfo;
if (loginfo->level >= 8) {
- DEBUGP("LOG: level %u >= 8\n", loginfo->level);
- return 0;
+ pr_debug("LOG: level %u >= 8\n", loginfo->level);
+ return false;
}
if (loginfo->prefix[sizeof(loginfo->prefix)-1] != '\0') {
- DEBUGP("LOG: prefix term %i\n",
- loginfo->prefix[sizeof(loginfo->prefix)-1]);
- return 0;
+ pr_debug("LOG: prefix term %i\n",
+ loginfo->prefix[sizeof(loginfo->prefix)-1]);
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_target ip6t_log_reg = {
+static struct xt_target ip6t_log_reg __read_mostly = {
.name = "LOG",
.family = AF_INET6,
.target = ip6t_log_target,
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index cb3d2415a064..2f487cda3b6b 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -34,12 +34,6 @@ MODULE_AUTHOR("Yasuyuki KOZAKAI <yasuyuki.kozakai@toshiba.co.jp>");
MODULE_DESCRIPTION("IP6 tables REJECT target module");
MODULE_LICENSE("GPL");
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/* Send RST reply */
static void send_reset(struct sk_buff *oldskb)
{
@@ -54,7 +48,7 @@ static void send_reset(struct sk_buff *oldskb)
if ((!(ipv6_addr_type(&oip6h->saddr) & IPV6_ADDR_UNICAST)) ||
(!(ipv6_addr_type(&oip6h->daddr) & IPV6_ADDR_UNICAST))) {
- DEBUGP("ip6t_REJECT: addr is not unicast.\n");
+ pr_debug("ip6t_REJECT: addr is not unicast.\n");
return;
}
@@ -62,16 +56,17 @@ static void send_reset(struct sk_buff *oldskb)
tcphoff = ipv6_skip_exthdr(oldskb, ((u8*)(oip6h+1) - oldskb->data), &proto);
if ((tcphoff < 0) || (tcphoff > oldskb->len)) {
- DEBUGP("ip6t_REJECT: Can't get TCP header.\n");
+ pr_debug("ip6t_REJECT: Can't get TCP header.\n");
return;
}
otcplen = oldskb->len - tcphoff;
/* IP header checks: fragment, too short. */
- if ((proto != IPPROTO_TCP) || (otcplen < sizeof(struct tcphdr))) {
- DEBUGP("ip6t_REJECT: proto(%d) != IPPROTO_TCP, or too short. otcplen = %d\n",
- proto, otcplen);
+ if (proto != IPPROTO_TCP || otcplen < sizeof(struct tcphdr)) {
+ pr_debug("ip6t_REJECT: proto(%d) != IPPROTO_TCP, "
+ "or too short. otcplen = %d\n",
+ proto, otcplen);
return;
}
@@ -80,14 +75,14 @@ static void send_reset(struct sk_buff *oldskb)
/* No RST for RST. */
if (otcph.rst) {
- DEBUGP("ip6t_REJECT: RST is set\n");
+ pr_debug("ip6t_REJECT: RST is set\n");
return;
}
/* Check checksum. */
if (csum_ipv6_magic(&oip6h->saddr, &oip6h->daddr, otcplen, IPPROTO_TCP,
skb_checksum(oldskb, tcphoff, otcplen, 0))) {
- DEBUGP("ip6t_REJECT: TCP checksum is invalid\n");
+ pr_debug("ip6t_REJECT: TCP checksum is invalid\n");
return;
}
@@ -159,7 +154,7 @@ static void send_reset(struct sk_buff *oldskb)
tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr,
&ipv6_hdr(nskb)->daddr,
sizeof(struct tcphdr), IPPROTO_TCP,
- csum_partial((char *)tcph,
+ csum_partial(tcph,
sizeof(struct tcphdr), 0));
nf_ct_attach(nskb, oldskb);
@@ -186,7 +181,7 @@ static unsigned int reject6_target(struct sk_buff **pskb,
{
const struct ip6t_reject_info *reject = targinfo;
- DEBUGP(KERN_DEBUG "%s: medium point\n", __FUNCTION__);
+ pr_debug("%s: medium point\n", __FUNCTION__);
/* WARNING: This code causes reentry within ip6tables.
This means that the ip6tables jump stack is now crap. We
must return an absolute verdict. --RR */
@@ -221,30 +216,30 @@ static unsigned int reject6_target(struct sk_buff **pskb,
return NF_DROP;
}
-static int check(const char *tablename,
- const void *entry,
- const struct xt_target *target,
- void *targinfo,
- unsigned int hook_mask)
+static bool check(const char *tablename,
+ const void *entry,
+ const struct xt_target *target,
+ void *targinfo,
+ unsigned int hook_mask)
{
const struct ip6t_reject_info *rejinfo = targinfo;
const struct ip6t_entry *e = entry;
if (rejinfo->with == IP6T_ICMP6_ECHOREPLY) {
printk("ip6t_REJECT: ECHOREPLY is not supported.\n");
- return 0;
+ return false;
} else if (rejinfo->with == IP6T_TCP_RESET) {
/* Must specify that it's a TCP packet */
if (e->ipv6.proto != IPPROTO_TCP
|| (e->ipv6.invflags & XT_INV_PROTO)) {
- DEBUGP("ip6t_REJECT: TCP_RESET illegal for non-tcp\n");
- return 0;
+ printk("ip6t_REJECT: TCP_RESET illegal for non-tcp\n");
+ return false;
}
}
- return 1;
+ return true;
}
-static struct xt_target ip6t_reject_reg = {
+static struct xt_target ip6t_reject_reg __read_mostly = {
.name = "REJECT",
.family = AF_INET6,
.target = reject6_target,
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c
index d3c154371b41..2a25fe25e0e0 100644
--- a/net/ipv6/netfilter/ip6t_ah.c
+++ b/net/ipv6/netfilter/ip6t_ah.c
@@ -23,25 +23,20 @@ MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("IPv6 AH match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/* Returns 1 if the spi is matched by the range, 0 otherwise */
-static inline int
-spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, int invert)
+static inline bool
+spi_match(u_int32_t min, u_int32_t max, u_int32_t spi, bool invert)
{
- int r=0;
- DEBUGP("ah spi_match:%c 0x%x <= 0x%x <= 0x%x",invert? '!':' ',
- min,spi,max);
+ bool r;
+
+ pr_debug("ah spi_match:%c 0x%x <= 0x%x <= 0x%x",
+ invert ? '!' : ' ', min, spi, max);
r = (spi >= min && spi <= max) ^ invert;
- DEBUGP(" result %s\n",r? "PASS\n" : "FAILED\n");
+ pr_debug(" result %s\n", r ? "PASS" : "FAILED");
return r;
}
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -49,9 +44,10 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
- struct ip_auth_hdr *ah, _ah;
+ struct ip_auth_hdr _ah;
+ const struct ip_auth_hdr *ah;
const struct ip6t_ah *ahinfo = matchinfo;
unsigned int ptr;
unsigned int hdrlen = 0;
@@ -60,40 +56,40 @@ match(const struct sk_buff *skb,
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
ah = skb_header_pointer(skb, ptr, sizeof(_ah), &_ah);
if (ah == NULL) {
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
hdrlen = (ah->hdrlen + 2) << 2;
- DEBUGP("IPv6 AH LEN %u %u ", hdrlen, ah->hdrlen);
- DEBUGP("RES %04X ", ah->reserved);
- DEBUGP("SPI %u %08X\n", ntohl(ah->spi), ntohl(ah->spi));
-
- DEBUGP("IPv6 AH spi %02X ",
- (spi_match(ahinfo->spis[0], ahinfo->spis[1],
- ntohl(ah->spi),
- !!(ahinfo->invflags & IP6T_AH_INV_SPI))));
- DEBUGP("len %02X %04X %02X ",
- ahinfo->hdrlen, hdrlen,
- (!ahinfo->hdrlen ||
- (ahinfo->hdrlen == hdrlen) ^
- !!(ahinfo->invflags & IP6T_AH_INV_LEN)));
- DEBUGP("res %02X %04X %02X\n",
- ahinfo->hdrres, ah->reserved,
- !(ahinfo->hdrres && ah->reserved));
+ pr_debug("IPv6 AH LEN %u %u ", hdrlen, ah->hdrlen);
+ pr_debug("RES %04X ", ah->reserved);
+ pr_debug("SPI %u %08X\n", ntohl(ah->spi), ntohl(ah->spi));
+
+ pr_debug("IPv6 AH spi %02X ",
+ spi_match(ahinfo->spis[0], ahinfo->spis[1],
+ ntohl(ah->spi),
+ !!(ahinfo->invflags & IP6T_AH_INV_SPI)));
+ pr_debug("len %02X %04X %02X ",
+ ahinfo->hdrlen, hdrlen,
+ (!ahinfo->hdrlen ||
+ (ahinfo->hdrlen == hdrlen) ^
+ !!(ahinfo->invflags & IP6T_AH_INV_LEN)));
+ pr_debug("res %02X %04X %02X\n",
+ ahinfo->hdrres, ah->reserved,
+ !(ahinfo->hdrres && ah->reserved));
return (ah != NULL)
&&
- (spi_match(ahinfo->spis[0], ahinfo->spis[1],
- ntohl(ah->spi),
- !!(ahinfo->invflags & IP6T_AH_INV_SPI)))
+ spi_match(ahinfo->spis[0], ahinfo->spis[1],
+ ntohl(ah->spi),
+ !!(ahinfo->invflags & IP6T_AH_INV_SPI))
&&
(!ahinfo->hdrlen ||
(ahinfo->hdrlen == hdrlen) ^
@@ -103,7 +99,7 @@ match(const struct sk_buff *skb,
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
checkentry(const char *tablename,
const void *entry,
const struct xt_match *match,
@@ -113,13 +109,13 @@ checkentry(const char *tablename,
const struct ip6t_ah *ahinfo = matchinfo;
if (ahinfo->invflags & ~IP6T_AH_INV_MASK) {
- DEBUGP("ip6t_ah: unknown flags %X\n", ahinfo->invflags);
- return 0;
+ pr_debug("ip6t_ah: unknown flags %X\n", ahinfo->invflags);
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match ah_match = {
+static struct xt_match ah_match __read_mostly = {
.name = "ah",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c
index 0f3dd932f0a6..34ba150bfe5d 100644
--- a/net/ipv6/netfilter/ip6t_eui64.c
+++ b/net/ipv6/netfilter/ip6t_eui64.c
@@ -19,7 +19,7 @@ MODULE_DESCRIPTION("IPv6 EUI64 address checking match");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -27,16 +27,16 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
unsigned char eui64[8];
int i = 0;
if (!(skb_mac_header(skb) >= skb->head &&
- (skb_mac_header(skb) + ETH_HLEN) <= skb->data) &&
+ skb_mac_header(skb) + ETH_HLEN <= skb->data) &&
offset != 0) {
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
memset(eui64, 0, sizeof(eui64));
@@ -50,19 +50,19 @@ match(const struct sk_buff *skb,
eui64[0] |= 0x02;
i = 0;
- while ((ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i])
- && (i < 8))
+ while (ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i]
+ && i < 8)
i++;
if (i == 8)
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
-static struct xt_match eui64_match = {
+static struct xt_match eui64_match __read_mostly = {
.name = "eui64",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c
index 5a5da71321b6..968aeba02073 100644
--- a/net/ipv6/netfilter/ip6t_frag.c
+++ b/net/ipv6/netfilter/ip6t_frag.c
@@ -22,25 +22,19 @@ MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("IPv6 FRAG match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/* Returns 1 if the id is matched by the range, 0 otherwise */
-static inline int
-id_match(u_int32_t min, u_int32_t max, u_int32_t id, int invert)
+static inline bool
+id_match(u_int32_t min, u_int32_t max, u_int32_t id, bool invert)
{
- int r = 0;
- DEBUGP("frag id_match:%c 0x%x <= 0x%x <= 0x%x", invert ? '!' : ' ',
- min, id, max);
+ bool r;
+ pr_debug("frag id_match:%c 0x%x <= 0x%x <= 0x%x", invert ? '!' : ' ',
+ min, id, max);
r = (id >= min && id <= max) ^ invert;
- DEBUGP(" result %s\n", r ? "PASS" : "FAILED");
+ pr_debug(" result %s\n", r ? "PASS" : "FAILED");
return r;
}
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -48,9 +42,10 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
- struct frag_hdr _frag, *fh;
+ struct frag_hdr _frag;
+ const struct frag_hdr *fh;
const struct ip6t_frag *fraginfo = matchinfo;
unsigned int ptr;
int err;
@@ -58,53 +53,53 @@ match(const struct sk_buff *skb,
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_FRAGMENT, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
fh = skb_header_pointer(skb, ptr, sizeof(_frag), &_frag);
if (fh == NULL) {
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
- DEBUGP("INFO %04X ", fh->frag_off);
- DEBUGP("OFFSET %04X ", ntohs(fh->frag_off) & ~0x7);
- DEBUGP("RES %02X %04X", fh->reserved, ntohs(fh->frag_off) & 0x6);
- DEBUGP("MF %04X ", fh->frag_off & htons(IP6_MF));
- DEBUGP("ID %u %08X\n", ntohl(fh->identification),
- ntohl(fh->identification));
-
- DEBUGP("IPv6 FRAG id %02X ",
- (id_match(fraginfo->ids[0], fraginfo->ids[1],
- ntohl(fh->identification),
- !!(fraginfo->invflags & IP6T_FRAG_INV_IDS))));
- DEBUGP("res %02X %02X%04X %02X ",
- (fraginfo->flags & IP6T_FRAG_RES), fh->reserved,
- ntohs(fh->frag_off) & 0x6,
- !((fraginfo->flags & IP6T_FRAG_RES)
- && (fh->reserved || (ntohs(fh->frag_off) & 0x06))));
- DEBUGP("first %02X %02X %02X ",
- (fraginfo->flags & IP6T_FRAG_FST),
- ntohs(fh->frag_off) & ~0x7,
- !((fraginfo->flags & IP6T_FRAG_FST)
- && (ntohs(fh->frag_off) & ~0x7)));
- DEBUGP("mf %02X %02X %02X ",
- (fraginfo->flags & IP6T_FRAG_MF),
- ntohs(fh->frag_off) & IP6_MF,
- !((fraginfo->flags & IP6T_FRAG_MF)
- && !((ntohs(fh->frag_off) & IP6_MF))));
- DEBUGP("last %02X %02X %02X\n",
- (fraginfo->flags & IP6T_FRAG_NMF),
- ntohs(fh->frag_off) & IP6_MF,
- !((fraginfo->flags & IP6T_FRAG_NMF)
- && (ntohs(fh->frag_off) & IP6_MF)));
+ pr_debug("INFO %04X ", fh->frag_off);
+ pr_debug("OFFSET %04X ", ntohs(fh->frag_off) & ~0x7);
+ pr_debug("RES %02X %04X", fh->reserved, ntohs(fh->frag_off) & 0x6);
+ pr_debug("MF %04X ", fh->frag_off & htons(IP6_MF));
+ pr_debug("ID %u %08X\n", ntohl(fh->identification),
+ ntohl(fh->identification));
+
+ pr_debug("IPv6 FRAG id %02X ",
+ id_match(fraginfo->ids[0], fraginfo->ids[1],
+ ntohl(fh->identification),
+ !!(fraginfo->invflags & IP6T_FRAG_INV_IDS)));
+ pr_debug("res %02X %02X%04X %02X ",
+ fraginfo->flags & IP6T_FRAG_RES, fh->reserved,
+ ntohs(fh->frag_off) & 0x6,
+ !((fraginfo->flags & IP6T_FRAG_RES)
+ && (fh->reserved || (ntohs(fh->frag_off) & 0x06))));
+ pr_debug("first %02X %02X %02X ",
+ fraginfo->flags & IP6T_FRAG_FST,
+ ntohs(fh->frag_off) & ~0x7,
+ !((fraginfo->flags & IP6T_FRAG_FST)
+ && (ntohs(fh->frag_off) & ~0x7)));
+ pr_debug("mf %02X %02X %02X ",
+ fraginfo->flags & IP6T_FRAG_MF,
+ ntohs(fh->frag_off) & IP6_MF,
+ !((fraginfo->flags & IP6T_FRAG_MF)
+ && !((ntohs(fh->frag_off) & IP6_MF))));
+ pr_debug("last %02X %02X %02X\n",
+ fraginfo->flags & IP6T_FRAG_NMF,
+ ntohs(fh->frag_off) & IP6_MF,
+ !((fraginfo->flags & IP6T_FRAG_NMF)
+ && (ntohs(fh->frag_off) & IP6_MF)));
return (fh != NULL)
&&
- (id_match(fraginfo->ids[0], fraginfo->ids[1],
- ntohl(fh->identification),
- !!(fraginfo->invflags & IP6T_FRAG_INV_IDS)))
+ id_match(fraginfo->ids[0], fraginfo->ids[1],
+ ntohl(fh->identification),
+ !!(fraginfo->invflags & IP6T_FRAG_INV_IDS))
&&
!((fraginfo->flags & IP6T_FRAG_RES)
&& (fh->reserved || (ntohs(fh->frag_off) & 0x6)))
@@ -120,7 +115,7 @@ match(const struct sk_buff *skb,
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
checkentry(const char *tablename,
const void *ip,
const struct xt_match *match,
@@ -130,13 +125,13 @@ checkentry(const char *tablename,
const struct ip6t_frag *fraginfo = matchinfo;
if (fraginfo->invflags & ~IP6T_FRAG_INV_MASK) {
- DEBUGP("ip6t_frag: unknown flags %X\n", fraginfo->invflags);
- return 0;
+ pr_debug("ip6t_frag: unknown flags %X\n", fraginfo->invflags);
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match frag_match = {
+static struct xt_match frag_match __read_mostly = {
.name = "frag",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c
index d2373c7cd354..e6ca6018b1ea 100644
--- a/net/ipv6/netfilter/ip6t_hbh.c
+++ b/net/ipv6/netfilter/ip6t_hbh.c
@@ -25,12 +25,6 @@ MODULE_DESCRIPTION("IPv6 opts match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
MODULE_ALIAS("ip6t_dst");
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/*
* (Type & 0xC0) >> 6
* 0 -> ignorable
@@ -47,7 +41,7 @@ MODULE_ALIAS("ip6t_dst");
* 5 -> RTALERT 2 x x
*/
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -55,45 +49,48 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
- struct ipv6_opt_hdr _optsh, *oh;
+ struct ipv6_opt_hdr _optsh;
+ const struct ipv6_opt_hdr *oh;
const struct ip6t_opts *optinfo = matchinfo;
unsigned int temp;
unsigned int ptr;
unsigned int hdrlen = 0;
- unsigned int ret = 0;
- u8 _opttype, *tp = NULL;
- u8 _optlen, *lp = NULL;
+ bool ret = false;
+ u8 _opttype;
+ u8 _optlen;
+ const u_int8_t *tp = NULL;
+ const u_int8_t *lp = NULL;
unsigned int optlen;
int err;
err = ipv6_find_hdr(skb, &ptr, match->data, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
oh = skb_header_pointer(skb, ptr, sizeof(_optsh), &_optsh);
if (oh == NULL) {
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
hdrlen = ipv6_optlen(oh);
if (skb->len - ptr < hdrlen) {
/* Packet smaller than it's length field */
- return 0;
+ return false;
}
- DEBUGP("IPv6 OPTS LEN %u %u ", hdrlen, oh->hdrlen);
+ pr_debug("IPv6 OPTS LEN %u %u ", hdrlen, oh->hdrlen);
- DEBUGP("len %02X %04X %02X ",
- optinfo->hdrlen, hdrlen,
- (!(optinfo->flags & IP6T_OPTS_LEN) ||
- ((optinfo->hdrlen == hdrlen) ^
- !!(optinfo->invflags & IP6T_OPTS_INV_LEN))));
+ pr_debug("len %02X %04X %02X ",
+ optinfo->hdrlen, hdrlen,
+ (!(optinfo->flags & IP6T_OPTS_LEN) ||
+ ((optinfo->hdrlen == hdrlen) ^
+ !!(optinfo->invflags & IP6T_OPTS_INV_LEN))));
ret = (oh != NULL) &&
(!(optinfo->flags & IP6T_OPTS_LEN) ||
@@ -105,10 +102,10 @@ match(const struct sk_buff *skb,
if (!(optinfo->flags & IP6T_OPTS_OPTS)) {
return ret;
} else if (optinfo->flags & IP6T_OPTS_NSTRICT) {
- DEBUGP("Not strict - not implemented");
+ pr_debug("Not strict - not implemented");
} else {
- DEBUGP("Strict ");
- DEBUGP("#%d ", optinfo->optsnr);
+ pr_debug("Strict ");
+ pr_debug("#%d ", optinfo->optsnr);
for (temp = 0; temp < optinfo->optsnr; temp++) {
/* type field exists ? */
if (hdrlen < 1)
@@ -120,12 +117,11 @@ match(const struct sk_buff *skb,
/* Type check */
if (*tp != (optinfo->opts[temp] & 0xFF00) >> 8) {
- DEBUGP("Tbad %02X %02X\n",
- *tp,
- (optinfo->opts[temp] & 0xFF00) >> 8);
- return 0;
+ pr_debug("Tbad %02X %02X\n", *tp,
+ (optinfo->opts[temp] & 0xFF00) >> 8);
+ return false;
} else {
- DEBUGP("Tok ");
+ pr_debug("Tok ");
}
/* Length check */
if (*tp) {
@@ -142,23 +138,23 @@ match(const struct sk_buff *skb,
spec_len = optinfo->opts[temp] & 0x00FF;
if (spec_len != 0x00FF && spec_len != *lp) {
- DEBUGP("Lbad %02X %04X\n", *lp,
- spec_len);
- return 0;
+ pr_debug("Lbad %02X %04X\n", *lp,
+ spec_len);
+ return false;
}
- DEBUGP("Lok ");
+ pr_debug("Lok ");
optlen = *lp + 2;
} else {
- DEBUGP("Pad1\n");
+ pr_debug("Pad1\n");
optlen = 1;
}
/* Step to the next */
- DEBUGP("len%04X \n", optlen);
+ pr_debug("len%04X \n", optlen);
if ((ptr > skb->len - optlen || hdrlen < optlen) &&
- (temp < optinfo->optsnr - 1)) {
- DEBUGP("new pointer is too large! \n");
+ temp < optinfo->optsnr - 1) {
+ pr_debug("new pointer is too large! \n");
break;
}
ptr += optlen;
@@ -167,14 +163,14 @@ match(const struct sk_buff *skb,
if (temp == optinfo->optsnr)
return ret;
else
- return 0;
+ return false;
}
- return 0;
+ return false;
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
checkentry(const char *tablename,
const void *entry,
const struct xt_match *match,
@@ -184,13 +180,13 @@ checkentry(const char *tablename,
const struct ip6t_opts *optsinfo = matchinfo;
if (optsinfo->invflags & ~IP6T_OPTS_INV_MASK) {
- DEBUGP("ip6t_opts: unknown flags %X\n", optsinfo->invflags);
- return 0;
+ pr_debug("ip6t_opts: unknown flags %X\n", optsinfo->invflags);
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match opts_match[] = {
+static struct xt_match opts_match[] __read_mostly = {
{
.name = "hbh",
.family = AF_INET6,
diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c
index d606c0e6d6fd..ca29ec00dc18 100644
--- a/net/ipv6/netfilter/ip6t_hl.c
+++ b/net/ipv6/netfilter/ip6t_hl.c
@@ -19,37 +19,37 @@ MODULE_AUTHOR("Maciej Soltysiak <solt@dns.toxicfilms.tv>");
MODULE_DESCRIPTION("IP tables Hop Limit matching module");
MODULE_LICENSE("GPL");
-static int match(const struct sk_buff *skb,
- const struct net_device *in, const struct net_device *out,
- const struct xt_match *match, const void *matchinfo,
- int offset, unsigned int protoff, int *hotdrop)
+static bool match(const struct sk_buff *skb,
+ const struct net_device *in, const struct net_device *out,
+ const struct xt_match *match, const void *matchinfo,
+ int offset, unsigned int protoff, bool *hotdrop)
{
const struct ip6t_hl_info *info = matchinfo;
const struct ipv6hdr *ip6h = ipv6_hdr(skb);
switch (info->mode) {
case IP6T_HL_EQ:
- return (ip6h->hop_limit == info->hop_limit);
+ return ip6h->hop_limit == info->hop_limit;
break;
case IP6T_HL_NE:
- return (!(ip6h->hop_limit == info->hop_limit));
+ return ip6h->hop_limit != info->hop_limit;
break;
case IP6T_HL_LT:
- return (ip6h->hop_limit < info->hop_limit);
+ return ip6h->hop_limit < info->hop_limit;
break;
case IP6T_HL_GT:
- return (ip6h->hop_limit > info->hop_limit);
+ return ip6h->hop_limit > info->hop_limit;
break;
default:
printk(KERN_WARNING "ip6t_hl: unknown mode %d\n",
info->mode);
- return 0;
+ return false;
}
- return 0;
+ return false;
}
-static struct xt_match hl_match = {
+static struct xt_match hl_match __read_mostly = {
.name = "hl",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c
index fd6a0869099b..2c65c2f9a4ab 100644
--- a/net/ipv6/netfilter/ip6t_ipv6header.c
+++ b/net/ipv6/netfilter/ip6t_ipv6header.c
@@ -26,7 +26,7 @@ MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("IPv6 headers match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-static int
+static bool
ipv6header_match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -34,7 +34,7 @@ ipv6header_match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
const struct ip6t_ipv6header_info *info = matchinfo;
unsigned int temp;
@@ -58,7 +58,7 @@ ipv6header_match(const struct sk_buff *skb,
/* Is there enough space for the next ext header? */
if (len < (int)sizeof(struct ipv6_opt_hdr))
- return 0;
+ return false;
/* No more exthdr -> evaluate */
if (nexthdr == NEXTHDR_NONE) {
temp |= MASK_NONE;
@@ -74,9 +74,9 @@ ipv6header_match(const struct sk_buff *skb,
BUG_ON(hp == NULL);
/* Calculate the header length */
- if (nexthdr == NEXTHDR_FRAGMENT) {
+ if (nexthdr == NEXTHDR_FRAGMENT)
hdrlen = 8;
- } else if (nexthdr == NEXTHDR_AUTH)
+ else if (nexthdr == NEXTHDR_AUTH)
hdrlen = (hp->hdrlen + 2) << 2;
else
hdrlen = ipv6_optlen(hp);
@@ -99,7 +99,7 @@ ipv6header_match(const struct sk_buff *skb,
temp |= MASK_DSTOPTS;
break;
default:
- return 0;
+ return false;
break;
}
@@ -110,7 +110,7 @@ ipv6header_match(const struct sk_buff *skb,
break;
}
- if ((nexthdr != NEXTHDR_NONE) && (nexthdr != NEXTHDR_ESP))
+ if (nexthdr != NEXTHDR_NONE && nexthdr != NEXTHDR_ESP)
temp |= MASK_PROTO;
if (info->modeflag)
@@ -124,7 +124,7 @@ ipv6header_match(const struct sk_buff *skb,
}
}
-static int
+static bool
ipv6header_checkentry(const char *tablename,
const void *ip,
const struct xt_match *match,
@@ -136,12 +136,12 @@ ipv6header_checkentry(const char *tablename,
/* invflags is 0 or 0xff in hard mode */
if ((!info->modeflag) && info->invflags != 0x00 &&
info->invflags != 0xFF)
- return 0;
+ return false;
- return 1;
+ return true;
}
-static struct xt_match ip6t_ipv6header_match = {
+static struct xt_match ip6t_ipv6header_match __read_mostly = {
.name = "ipv6header",
.family = AF_INET6,
.match = &ipv6header_match,
diff --git a/net/ipv6/netfilter/ip6t_mh.c b/net/ipv6/netfilter/ip6t_mh.c
index c2a909893a64..0fa714092dc9 100644
--- a/net/ipv6/netfilter/ip6t_mh.c
+++ b/net/ipv6/netfilter/ip6t_mh.c
@@ -31,16 +31,13 @@ MODULE_LICENSE("GPL");
#endif
/* Returns 1 if the type is matched by the range, 0 otherwise */
-static inline int
-type_match(u_int8_t min, u_int8_t max, u_int8_t type, int invert)
+static inline bool
+type_match(u_int8_t min, u_int8_t max, u_int8_t type, bool invert)
{
- int ret;
-
- ret = (type >= min && type <= max) ^ invert;
- return ret;
+ return (type >= min && type <= max) ^ invert;
}
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -48,29 +45,30 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
- struct ip6_mh _mh, *mh;
+ struct ip6_mh _mh;
+ const struct ip6_mh *mh;
const struct ip6t_mh *mhinfo = matchinfo;
/* Must not be a fragment. */
if (offset)
- return 0;
+ return false;
mh = skb_header_pointer(skb, protoff, sizeof(_mh), &_mh);
if (mh == NULL) {
/* We've been asked to examine this packet, and we
can't. Hence, no choice but to drop. */
duprintf("Dropping evil MH tinygram.\n");
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
if (mh->ip6mh_proto != IPPROTO_NONE) {
duprintf("Dropping invalid MH Payload Proto: %u\n",
mh->ip6mh_proto);
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
return type_match(mhinfo->types[0], mhinfo->types[1], mh->ip6mh_type,
@@ -78,7 +76,7 @@ match(const struct sk_buff *skb,
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
mh_checkentry(const char *tablename,
const void *entry,
const struct xt_match *match,
@@ -91,7 +89,7 @@ mh_checkentry(const char *tablename,
return !(mhinfo->invflags & ~IP6T_MH_INV_MASK);
}
-static struct xt_match mh_match = {
+static struct xt_match mh_match __read_mostly = {
.name = "mh",
.family = AF_INET6,
.checkentry = mh_checkentry,
diff --git a/net/ipv6/netfilter/ip6t_owner.c b/net/ipv6/netfilter/ip6t_owner.c
index 43738bba00b5..6036613aef36 100644
--- a/net/ipv6/netfilter/ip6t_owner.c
+++ b/net/ipv6/netfilter/ip6t_owner.c
@@ -23,7 +23,7 @@ MODULE_DESCRIPTION("IP6 tables owner matching module");
MODULE_LICENSE("GPL");
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -31,29 +31,27 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
const struct ip6t_owner_info *info = matchinfo;
if (!skb->sk || !skb->sk->sk_socket || !skb->sk->sk_socket->file)
- return 0;
+ return false;
- if (info->match & IP6T_OWNER_UID) {
+ if (info->match & IP6T_OWNER_UID)
if ((skb->sk->sk_socket->file->f_uid != info->uid) ^
!!(info->invert & IP6T_OWNER_UID))
- return 0;
- }
+ return false;
- if (info->match & IP6T_OWNER_GID) {
+ if (info->match & IP6T_OWNER_GID)
if ((skb->sk->sk_socket->file->f_gid != info->gid) ^
!!(info->invert & IP6T_OWNER_GID))
- return 0;
- }
+ return false;
- return 1;
+ return true;
}
-static int
+static bool
checkentry(const char *tablename,
const void *ip,
const struct xt_match *match,
@@ -65,12 +63,12 @@ checkentry(const char *tablename,
if (info->match & (IP6T_OWNER_PID | IP6T_OWNER_SID)) {
printk("ipt_owner: pid and sid matching "
"not supported anymore\n");
- return 0;
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match owner_match = {
+static struct xt_match owner_match __read_mostly = {
.name = "owner",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 81ab00d8c182..357cea703bd9 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -24,25 +24,19 @@ MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("IPv6 RT match");
MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
/* Returns 1 if the id is matched by the range, 0 otherwise */
-static inline int
-segsleft_match(u_int32_t min, u_int32_t max, u_int32_t id, int invert)
+static inline bool
+segsleft_match(u_int32_t min, u_int32_t max, u_int32_t id, bool invert)
{
- int r = 0;
- DEBUGP("rt segsleft_match:%c 0x%x <= 0x%x <= 0x%x",
- invert ? '!' : ' ', min, id, max);
+ bool r;
+ pr_debug("rt segsleft_match:%c 0x%x <= 0x%x <= 0x%x",
+ invert ? '!' : ' ', min, id, max);
r = (id >= min && id <= max) ^ invert;
- DEBUGP(" result %s\n", r ? "PASS" : "FAILED");
+ pr_debug(" result %s\n", r ? "PASS" : "FAILED");
return r;
}
-static int
+static bool
match(const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -50,59 +44,61 @@ match(const struct sk_buff *skb,
const void *matchinfo,
int offset,
unsigned int protoff,
- int *hotdrop)
+ bool *hotdrop)
{
- struct ipv6_rt_hdr _route, *rh;
+ struct ipv6_rt_hdr _route;
+ const struct ipv6_rt_hdr *rh;
const struct ip6t_rt *rtinfo = matchinfo;
unsigned int temp;
unsigned int ptr;
unsigned int hdrlen = 0;
- unsigned int ret = 0;
- struct in6_addr *ap, _addr;
+ bool ret = false;
+ struct in6_addr _addr;
+ const struct in6_addr *ap;
int err;
err = ipv6_find_hdr(skb, &ptr, NEXTHDR_ROUTING, NULL);
if (err < 0) {
if (err != -ENOENT)
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
rh = skb_header_pointer(skb, ptr, sizeof(_route), &_route);
if (rh == NULL) {
- *hotdrop = 1;
- return 0;
+ *hotdrop = true;
+ return false;
}
hdrlen = ipv6_optlen(rh);
if (skb->len - ptr < hdrlen) {
/* Pcket smaller than its length field */
- return 0;
+ return false;
}
- DEBUGP("IPv6 RT LEN %u %u ", hdrlen, rh->hdrlen);
- DEBUGP("TYPE %04X ", rh->type);
- DEBUGP("SGS_LEFT %u %02X\n", rh->segments_left, rh->segments_left);
-
- DEBUGP("IPv6 RT segsleft %02X ",
- (segsleft_match(rtinfo->segsleft[0], rtinfo->segsleft[1],
- rh->segments_left,
- !!(rtinfo->invflags & IP6T_RT_INV_SGS))));
- DEBUGP("type %02X %02X %02X ",
- rtinfo->rt_type, rh->type,
- (!(rtinfo->flags & IP6T_RT_TYP) ||
- ((rtinfo->rt_type == rh->type) ^
- !!(rtinfo->invflags & IP6T_RT_INV_TYP))));
- DEBUGP("len %02X %04X %02X ",
- rtinfo->hdrlen, hdrlen,
- (!(rtinfo->flags & IP6T_RT_LEN) ||
- ((rtinfo->hdrlen == hdrlen) ^
- !!(rtinfo->invflags & IP6T_RT_INV_LEN))));
- DEBUGP("res %02X %02X %02X ",
- (rtinfo->flags & IP6T_RT_RES),
- ((struct rt0_hdr *)rh)->reserved,
- !((rtinfo->flags & IP6T_RT_RES) &&
- (((struct rt0_hdr *)rh)->reserved)));
+ pr_debug("IPv6 RT LEN %u %u ", hdrlen, rh->hdrlen);
+ pr_debug("TYPE %04X ", rh->type);
+ pr_debug("SGS_LEFT %u %02X\n", rh->segments_left, rh->segments_left);
+
+ pr_debug("IPv6 RT segsleft %02X ",
+ segsleft_match(rtinfo->segsleft[0], rtinfo->segsleft[1],
+ rh->segments_left,
+ !!(rtinfo->invflags & IP6T_RT_INV_SGS)));
+ pr_debug("type %02X %02X %02X ",
+ rtinfo->rt_type, rh->type,
+ (!(rtinfo->flags & IP6T_RT_TYP) ||
+ ((rtinfo->rt_type == rh->type) ^
+ !!(rtinfo->invflags & IP6T_RT_INV_TYP))));
+ pr_debug("len %02X %04X %02X ",
+ rtinfo->hdrlen, hdrlen,
+ !(rtinfo->flags & IP6T_RT_LEN) ||
+ ((rtinfo->hdrlen == hdrlen) ^
+ !!(rtinfo->invflags & IP6T_RT_INV_LEN)));
+ pr_debug("res %02X %02X %02X ",
+ rtinfo->flags & IP6T_RT_RES,
+ ((const struct rt0_hdr *)rh)->reserved,
+ !((rtinfo->flags & IP6T_RT_RES) &&
+ (((const struct rt0_hdr *)rh)->reserved)));
ret = (rh != NULL)
&&
@@ -129,18 +125,18 @@ match(const struct sk_buff *skb,
ret = (*rp == 0);
}
- DEBUGP("#%d ", rtinfo->addrnr);
+ pr_debug("#%d ", rtinfo->addrnr);
if (!(rtinfo->flags & IP6T_RT_FST)) {
return ret;
} else if (rtinfo->flags & IP6T_RT_FST_NSTRICT) {
- DEBUGP("Not strict ");
+ pr_debug("Not strict ");
if (rtinfo->addrnr > (unsigned int)((hdrlen - 8) / 16)) {
- DEBUGP("There isn't enough space\n");
- return 0;
+ pr_debug("There isn't enough space\n");
+ return false;
} else {
unsigned int i = 0;
- DEBUGP("#%d ", rtinfo->addrnr);
+ pr_debug("#%d ", rtinfo->addrnr);
for (temp = 0;
temp < (unsigned int)((hdrlen - 8) / 16);
temp++) {
@@ -154,25 +150,25 @@ match(const struct sk_buff *skb,
BUG_ON(ap == NULL);
if (ipv6_addr_equal(ap, &rtinfo->addrs[i])) {
- DEBUGP("i=%d temp=%d;\n", i, temp);
+ pr_debug("i=%d temp=%d;\n", i, temp);
i++;
}
if (i == rtinfo->addrnr)
break;
}
- DEBUGP("i=%d #%d\n", i, rtinfo->addrnr);
+ pr_debug("i=%d #%d\n", i, rtinfo->addrnr);
if (i == rtinfo->addrnr)
return ret;
else
- return 0;
+ return false;
}
} else {
- DEBUGP("Strict ");
+ pr_debug("Strict ");
if (rtinfo->addrnr > (unsigned int)((hdrlen - 8) / 16)) {
- DEBUGP("There isn't enough space\n");
- return 0;
+ pr_debug("There isn't enough space\n");
+ return false;
} else {
- DEBUGP("#%d ", rtinfo->addrnr);
+ pr_debug("#%d ", rtinfo->addrnr);
for (temp = 0; temp < rtinfo->addrnr; temp++) {
ap = skb_header_pointer(skb,
ptr
@@ -185,20 +181,20 @@ match(const struct sk_buff *skb,
if (!ipv6_addr_equal(ap, &rtinfo->addrs[temp]))
break;
}
- DEBUGP("temp=%d #%d\n", temp, rtinfo->addrnr);
- if ((temp == rtinfo->addrnr) &&
- (temp == (unsigned int)((hdrlen - 8) / 16)))
+ pr_debug("temp=%d #%d\n", temp, rtinfo->addrnr);
+ if (temp == rtinfo->addrnr &&
+ temp == (unsigned int)((hdrlen - 8) / 16))
return ret;
else
- return 0;
+ return false;
}
}
- return 0;
+ return false;
}
/* Called when user tries to insert an entry of this type. */
-static int
+static bool
checkentry(const char *tablename,
const void *entry,
const struct xt_match *match,
@@ -208,21 +204,21 @@ checkentry(const char *tablename,
const struct ip6t_rt *rtinfo = matchinfo;
if (rtinfo->invflags & ~IP6T_RT_INV_MASK) {
- DEBUGP("ip6t_rt: unknown flags %X\n", rtinfo->invflags);
- return 0;
+ pr_debug("ip6t_rt: unknown flags %X\n", rtinfo->invflags);
+ return false;
}
if ((rtinfo->flags & (IP6T_RT_RES | IP6T_RT_FST_MASK)) &&
(!(rtinfo->flags & IP6T_RT_TYP) ||
(rtinfo->rt_type != 0) ||
(rtinfo->invflags & IP6T_RT_INV_TYP))) {
- DEBUGP("`--rt-type 0' required before `--rt-0-*'");
- return 0;
+ pr_debug("`--rt-type 0' required before `--rt-0-*'");
+ return false;
}
- return 1;
+ return true;
}
-static struct xt_match rt_match = {
+static struct xt_match rt_match __read_mostly = {
.name = "rt",
.family = AF_INET6,
.match = match,
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index f2d26495f413..f0a9efa67fb5 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -21,12 +21,6 @@ MODULE_DESCRIPTION("ip6tables mangle table");
(1 << NF_IP6_LOCAL_OUT) | \
(1 << NF_IP6_POST_ROUTING))
-#if 0
-#define DEBUGP(x, args...) printk(KERN_DEBUG x, ## args)
-#else
-#define DEBUGP(x, args...)
-#endif
-
static struct
{
struct ip6t_replace repl;
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 0acda45d455d..ec290e4ebdd8 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -8,12 +8,6 @@
#define RAW_VALID_HOOKS ((1 << NF_IP6_PRE_ROUTING) | (1 << NF_IP6_LOCAL_OUT))
-#if 0
-#define DEBUGP(x, args...) printk(KERN_DEBUG x, ## args)
-#else
-#define DEBUGP(x, args...)
-#endif
-
static struct
{
struct ip6t_replace repl;
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 1b1797f1f33d..36df2218b669 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -26,12 +26,6 @@
#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_core.h>
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
static int ipv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
struct nf_conntrack_tuple *tuple)
{
@@ -92,7 +86,7 @@ static int ipv6_print_conntrack(struct seq_file *s,
* - Note also special handling of AUTH header. Thanks to IPsec wizards.
*/
-int nf_ct_ipv6_skip_exthdr(struct sk_buff *skb, int start, u8 *nexthdrp,
+int nf_ct_ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp,
int len)
{
u8 nexthdr = *nexthdrp;
@@ -123,22 +117,25 @@ int nf_ct_ipv6_skip_exthdr(struct sk_buff *skb, int start, u8 *nexthdrp,
return start;
}
-static int
-ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
- u_int8_t *protonum)
+static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
+ unsigned int *dataoff, u_int8_t *protonum)
{
- unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
- unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
- int protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
- (*pskb)->len - extoff);
+ unsigned int extoff = nhoff + sizeof(struct ipv6hdr);
+ unsigned char pnum;
+ int protoff;
+
+ if (skb_copy_bits(skb, nhoff + offsetof(struct ipv6hdr, nexthdr),
+ &pnum, sizeof(pnum)) != 0) {
+ pr_debug("ip6_conntrack_core: can't get nexthdr\n");
+ return -NF_ACCEPT;
+ }
+ protoff = nf_ct_ipv6_skip_exthdr(skb, extoff, &pnum, skb->len - extoff);
/*
- * (protoff == (*pskb)->len) mean that the packet doesn't have no data
+ * (protoff == skb->len) mean that the packet doesn't have no data
* except of IPv6 & ext headers. but it's tracked anyway. - YK
*/
- if ((protoff < 0) || (protoff > (*pskb)->len)) {
- DEBUGP("ip6_conntrack_core: can't find proto in pkt\n");
- NF_CT_STAT_INC_ATOMIC(error);
- NF_CT_STAT_INC_ATOMIC(invalid);
+ if ((protoff < 0) || (protoff > skb->len)) {
+ pr_debug("ip6_conntrack_core: can't find proto in pkt\n");
return -NF_ACCEPT;
}
@@ -147,11 +144,6 @@ ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
return NF_ACCEPT;
}
-static u_int32_t ipv6_get_features(const struct nf_conntrack_tuple *tuple)
-{
- return NF_CT_F_BASIC;
-}
-
static unsigned int ipv6_confirm(unsigned int hooknum,
struct sk_buff **pskb,
const struct net_device *in,
@@ -183,7 +175,7 @@ static unsigned int ipv6_confirm(unsigned int hooknum,
protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
(*pskb)->len - extoff);
if (protoff > (*pskb)->len || pnum == NEXTHDR_FRAGMENT) {
- DEBUGP("proto header not found\n");
+ pr_debug("proto header not found\n");
return NF_ACCEPT;
}
@@ -381,14 +373,14 @@ static int ipv6_nfattr_to_tuple(struct nfattr *tb[],
}
#endif
-struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 = {
+struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 __read_mostly = {
.l3proto = PF_INET6,
.name = "ipv6",
.pkt_to_tuple = ipv6_pkt_to_tuple,
.invert_tuple = ipv6_invert_tuple,
.print_tuple = ipv6_print_tuple,
.print_conntrack = ipv6_print_conntrack,
- .prepare = ipv6_prepare,
+ .get_l4proto = ipv6_get_l4proto,
#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
.tuple_to_nfattr = ipv6_tuple_to_nfattr,
.nfattr_to_tuple = ipv6_nfattr_to_tuple,
@@ -397,7 +389,6 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 = {
.ctl_table_path = nf_net_netfilter_sysctl_path,
.ctl_table = nf_ct_ipv6_sysctl_table,
#endif
- .get_features = ipv6_get_features,
.me = THIS_MODULE,
};
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 8814b95b2326..ab154fb90018 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -27,12 +27,6 @@
static unsigned long nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
static int icmpv6_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
@@ -125,8 +119,8 @@ static int icmpv6_new(struct nf_conn *conntrack,
if (type < 0 || type >= sizeof(valid_new) || !valid_new[type]) {
/* Can't create a new ICMPv6 `conn' with this. */
- DEBUGP("icmpv6: can't create new conn with type %u\n",
- type + 128);
+ pr_debug("icmpv6: can't create new conn with type %u\n",
+ type + 128);
NF_CT_DUMP_TUPLE(&conntrack->tuplehash[0].tuple);
return 0;
}
@@ -142,60 +136,36 @@ icmpv6_error_message(struct sk_buff *skb,
{
struct nf_conntrack_tuple intuple, origtuple;
struct nf_conntrack_tuple_hash *h;
- struct icmp6hdr _hdr, *hp;
- unsigned int inip6off;
struct nf_conntrack_l4proto *inproto;
- u_int8_t inprotonum;
- unsigned int inprotoff;
NF_CT_ASSERT(skb->nfct == NULL);
- hp = skb_header_pointer(skb, icmp6off, sizeof(_hdr), &_hdr);
- if (hp == NULL) {
- DEBUGP("icmpv6_error: Can't get ICMPv6 hdr.\n");
- return -NF_ACCEPT;
- }
-
- inip6off = icmp6off + sizeof(_hdr);
- if (skb_copy_bits(skb, inip6off+offsetof(struct ipv6hdr, nexthdr),
- &inprotonum, sizeof(inprotonum)) != 0) {
- DEBUGP("icmpv6_error: Can't get nexthdr in inner IPv6 header.\n");
- return -NF_ACCEPT;
- }
- inprotoff = nf_ct_ipv6_skip_exthdr(skb,
- inip6off + sizeof(struct ipv6hdr),
- &inprotonum,
- skb->len - inip6off
- - sizeof(struct ipv6hdr));
-
- if ((inprotoff > skb->len) || (inprotonum == NEXTHDR_FRAGMENT)) {
- DEBUGP("icmpv6_error: Can't get protocol header in ICMPv6 payload.\n");
+ /* Are they talking about one of our connections? */
+ if (!nf_ct_get_tuplepr(skb,
+ skb_network_offset(skb)
+ + sizeof(struct ipv6hdr)
+ + sizeof(struct icmp6hdr),
+ PF_INET6, &origtuple)) {
+ pr_debug("icmpv6_error: Can't get tuple\n");
return -NF_ACCEPT;
}
/* rcu_read_lock()ed by nf_hook_slow */
- inproto = __nf_ct_l4proto_find(PF_INET6, inprotonum);
-
- /* Are they talking about one of our connections? */
- if (!nf_ct_get_tuple(skb, inip6off, inprotoff, PF_INET6, inprotonum,
- &origtuple, &nf_conntrack_l3proto_ipv6, inproto)) {
- DEBUGP("icmpv6_error: Can't get tuple\n");
- return -NF_ACCEPT;
- }
+ inproto = __nf_ct_l4proto_find(PF_INET6, origtuple.dst.protonum);
/* Ordinarily, we'd expect the inverted tupleproto, but it's
been preserved inside the ICMP. */
if (!nf_ct_invert_tuple(&intuple, &origtuple,
&nf_conntrack_l3proto_ipv6, inproto)) {
- DEBUGP("icmpv6_error: Can't invert tuple\n");
+ pr_debug("icmpv6_error: Can't invert tuple\n");
return -NF_ACCEPT;
}
*ctinfo = IP_CT_RELATED;
- h = nf_conntrack_find_get(&intuple, NULL);
+ h = nf_conntrack_find_get(&intuple);
if (!h) {
- DEBUGP("icmpv6_error: no match\n");
+ pr_debug("icmpv6_error: no match\n");
return -NF_ACCEPT;
} else {
if (NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY)
@@ -306,7 +276,7 @@ static struct ctl_table icmpv6_sysctl_table[] = {
};
#endif /* CONFIG_SYSCTL */
-struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
+struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
{
.l3proto = PF_INET6,
.l4proto = IPPROTO_ICMPV6,
@@ -327,5 +297,3 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
.ctl_table = icmpv6_sysctl_table,
#endif
};
-
-EXPORT_SYMBOL(nf_conntrack_l4proto_icmpv6);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 347ab7608231..25442a8c1ba8 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -44,12 +44,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
#define NF_CT_FRAG6_HIGH_THRESH 262144 /* == 256*1024 */
#define NF_CT_FRAG6_LOW_THRESH 196608 /* == 192*1024 */
#define NF_CT_FRAG6_TIMEOUT IPV6_FRAG_TIMEOUT
@@ -343,7 +337,7 @@ nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, str
struct nf_ct_frag6_queue *fq;
if ((fq = frag_alloc_queue()) == NULL) {
- DEBUGP("Can't alloc new queue\n");
+ pr_debug("Can't alloc new queue\n");
goto oom;
}
@@ -393,7 +387,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
int offset, end;
if (fq->last_in & COMPLETE) {
- DEBUGP("Allready completed\n");
+ pr_debug("Allready completed\n");
goto err;
}
@@ -402,7 +396,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
- DEBUGP("offset is too large.\n");
+ pr_debug("offset is too large.\n");
return -1;
}
@@ -420,7 +414,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
*/
if (end < fq->len ||
((fq->last_in & LAST_IN) && end != fq->len)) {
- DEBUGP("already received last fragment\n");
+ pr_debug("already received last fragment\n");
goto err;
}
fq->last_in |= LAST_IN;
@@ -433,13 +427,13 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
/* RFC2460 says always send parameter problem in
* this case. -DaveM
*/
- DEBUGP("the end of this fragment is not rounded to 8 bytes.\n");
+ pr_debug("end of fragment not rounded to 8 bytes.\n");
return -1;
}
if (end > fq->len) {
/* Some bits beyond end -> corruption. */
if (fq->last_in & LAST_IN) {
- DEBUGP("last packet already reached.\n");
+ pr_debug("last packet already reached.\n");
goto err;
}
fq->len = end;
@@ -451,11 +445,11 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
/* Point into the IP datagram 'data' part. */
if (!pskb_pull(skb, (u8 *) (fhdr + 1) - skb->data)) {
- DEBUGP("queue: message is too short.\n");
+ pr_debug("queue: message is too short.\n");
goto err;
}
if (pskb_trim_rcsum(skb, end - offset)) {
- DEBUGP("Can't trim\n");
+ pr_debug("Can't trim\n");
goto err;
}
@@ -480,11 +474,11 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
if (i > 0) {
offset += i;
if (end <= offset) {
- DEBUGP("overlap\n");
+ pr_debug("overlap\n");
goto err;
}
if (!pskb_pull(skb, i)) {
- DEBUGP("Can't pull\n");
+ pr_debug("Can't pull\n");
goto err;
}
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
@@ -503,7 +497,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
/* Eat head of the next overlapped fragment
* and leave the loop. The next ones cannot overlap.
*/
- DEBUGP("Eat head of the overlapped parts.: %d", i);
+ pr_debug("Eat head of the overlapped parts.: %d", i);
if (!pskb_pull(next, i))
goto err;
@@ -586,13 +580,13 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
sizeof(struct ipv6hdr) + fq->len -
sizeof(struct frag_hdr));
if (payload_len > IPV6_MAXPLEN) {
- DEBUGP("payload len is too large.\n");
+ pr_debug("payload len is too large.\n");
goto out_oversize;
}
/* Head of list must not be cloned. */
if (skb_cloned(head) && pskb_expand_head(head, 0, 0, GFP_ATOMIC)) {
- DEBUGP("skb is cloned but can't expand head");
+ pr_debug("skb is cloned but can't expand head");
goto out_oom;
}
@@ -604,7 +598,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
int i, plen = 0;
if ((clone = alloc_skb(0, GFP_ATOMIC)) == NULL) {
- DEBUGP("Can't alloc skb\n");
+ pr_debug("Can't alloc skb\n");
goto out_oom;
}
clone->next = head->next;
@@ -719,11 +713,11 @@ find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff)
return -1;
}
if (len < (int)sizeof(struct ipv6_opt_hdr)) {
- DEBUGP("too short\n");
+ pr_debug("too short\n");
return -1;
}
if (nexthdr == NEXTHDR_NONE) {
- DEBUGP("next header is none\n");
+ pr_debug("next header is none\n");
return -1;
}
if (skb_copy_bits(skb, start, &hdr, sizeof(hdr)))
@@ -764,7 +758,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
/* Jumbo payload inhibits frag. header */
if (ipv6_hdr(skb)->payload_len == 0) {
- DEBUGP("payload len = 0\n");
+ pr_debug("payload len = 0\n");
return skb;
}
@@ -773,14 +767,14 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
clone = skb_clone(skb, GFP_ATOMIC);
if (clone == NULL) {
- DEBUGP("Can't clone skb\n");
+ pr_debug("Can't clone skb\n");
return skb;
}
NFCT_FRAG6_CB(clone)->orig = skb;
if (!pskb_may_pull(clone, fhoff + sizeof(*fhdr))) {
- DEBUGP("message is too short.\n");
+ pr_debug("message is too short.\n");
goto ret_orig;
}
@@ -789,7 +783,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
fhdr = (struct frag_hdr *)skb_transport_header(clone);
if (!(fhdr->frag_off & htons(0xFFF9))) {
- DEBUGP("Invalid fragment offset\n");
+ pr_debug("Invalid fragment offset\n");
/* It is not a fragmented frame */
goto ret_orig;
}
@@ -799,7 +793,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr);
if (fq == NULL) {
- DEBUGP("Can't find and can't create new queue\n");
+ pr_debug("Can't find and can't create new queue\n");
goto ret_orig;
}
@@ -807,7 +801,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
if (nf_ct_frag6_queue(fq, clone, fhdr, nhoff) < 0) {
spin_unlock(&fq->lock);
- DEBUGP("Can't insert skb to queue\n");
+ pr_debug("Can't insert skb to queue\n");
fq_put(fq, NULL);
goto ret_orig;
}
@@ -815,7 +809,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
if (fq->last_in == (FIRST_IN|LAST_IN) && fq->meat == fq->len) {
ret_skb = nf_ct_frag6_reasm(fq, dev);
if (ret_skb == NULL)
- DEBUGP("Can't reassemble fragmented packets\n");
+ pr_debug("Can't reassemble fragmented packets\n");
}
spin_unlock(&fq->lock);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.