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[NETFILTER]: nf_conntrack: endian annotations
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Resync with Al Viro's ip_conntrack annotations and fix a missed
spot in ip_nat_proto_icmp.c.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Patrick McHardy authored and David S. Miller committed Dec 3, 2006
1 parent f9aae95 commit bff9a89
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Showing 11 changed files with 58 additions and 65 deletions.
18 changes: 9 additions & 9 deletions include/net/netfilter/nf_conntrack_tuple.h
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Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,8 @@
network order! */
union nf_conntrack_man_l3proto {
u_int32_t all[NF_CT_TUPLE_L3SIZE];
u_int32_t ip;
u_int32_t ip6[4];
__be32 ip;
__be32 ip6[4];
};

/* The protocol-specific manipulable parts of the tuple: always in
Expand All @@ -38,16 +38,16 @@ union nf_conntrack_man_proto
u_int16_t all;

struct {
u_int16_t port;
__be16 port;
} tcp;
struct {
u_int16_t port;
__be16 port;
} udp;
struct {
u_int16_t id;
__be16 id;
} icmp;
struct {
u_int16_t port;
__be16 port;
} sctp;
};

Expand Down Expand Up @@ -77,16 +77,16 @@ struct nf_conntrack_tuple
u_int16_t all;

struct {
u_int16_t port;
__be16 port;
} tcp;
struct {
u_int16_t port;
__be16 port;
} udp;
struct {
u_int8_t type, code;
} icmp;
struct {
u_int16_t port;
__be16 port;
} sctp;
} u;

Expand Down
4 changes: 2 additions & 2 deletions net/ipv4/netfilter/ip_nat_proto_icmp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -24,8 +24,8 @@ icmp_in_range(const struct ip_conntrack_tuple *tuple,
const union ip_conntrack_manip_proto *min,
const union ip_conntrack_manip_proto *max)
{
return (tuple->src.u.icmp.id >= min->icmp.id
&& tuple->src.u.icmp.id <= max->icmp.id);
return ntohs(tuple->src.u.icmp.id) >= ntohs(min->icmp.id) &&
ntohs(tuple->src.u.icmp.id) <= ntohs(max->icmp.id);
}

static int
Expand Down
8 changes: 3 additions & 5 deletions net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@
static int ipv4_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
struct nf_conntrack_tuple *tuple)
{
u_int32_t _addrs[2], *ap;
__be32 _addrs[2], *ap;
ap = skb_header_pointer(skb, nhoff + offsetof(struct iphdr, saddr),
sizeof(u_int32_t) * 2, _addrs);
if (ap == NULL)
Expand Down Expand Up @@ -410,10 +410,8 @@ static int ipv4_nfattr_to_tuple(struct nfattr *tb[],
if (nfattr_bad_size(tb, CTA_IP_MAX, cta_min_ip))
return -EINVAL;

t->src.u3.ip =
*(u_int32_t *)NFA_DATA(tb[CTA_IP_V4_SRC-1]);
t->dst.u3.ip =
*(u_int32_t *)NFA_DATA(tb[CTA_IP_V4_DST-1]);
t->src.u3.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_SRC-1]);
t->dst.u3.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_DST-1]);

return 0;
}
Expand Down
2 changes: 1 addition & 1 deletion net/ipv4/netfilter/nf_conntrack_proto_icmp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -311,7 +311,7 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
tuple->dst.u.icmp.code =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMP_CODE-1]);
tuple->src.u.icmp.id =
*(u_int16_t *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);
*(__be16 *)NFA_DATA(tb[CTA_PROTO_ICMP_ID-1]);

if (tuple->dst.u.icmp.type >= sizeof(invmap)
|| !invmap[tuple->dst.u.icmp.type])
Expand Down
2 changes: 1 addition & 1 deletion net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
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Original file line number Diff line number Diff line change
Expand Up @@ -287,7 +287,7 @@ static int icmpv6_nfattr_to_tuple(struct nfattr *tb[],
tuple->dst.u.icmp.code =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTO_ICMPV6_CODE-1]);
tuple->src.u.icmp.id =
*(u_int16_t *)NFA_DATA(tb[CTA_PROTO_ICMPV6_ID-1]);
*(__be16 *)NFA_DATA(tb[CTA_PROTO_ICMPV6_ID-1]);

if (tuple->dst.u.icmp.type < 128
|| tuple->dst.u.icmp.type - 128 >= sizeof(invmap)
Expand Down
26 changes: 13 additions & 13 deletions net/ipv6/netfilter/nf_conntrack_reasm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ struct nf_ct_frag6_queue
struct hlist_node list;
struct list_head lru_list; /* lru list member */

__u32 id; /* fragment id */
__be32 id; /* fragment id */
struct in6_addr saddr;
struct in6_addr daddr;

Expand Down Expand Up @@ -115,28 +115,28 @@ static __inline__ void fq_unlink(struct nf_ct_frag6_queue *fq)
write_unlock(&nf_ct_frag6_lock);
}

static unsigned int ip6qhashfn(u32 id, struct in6_addr *saddr,
static unsigned int ip6qhashfn(__be32 id, struct in6_addr *saddr,
struct in6_addr *daddr)
{
u32 a, b, c;

a = saddr->s6_addr32[0];
b = saddr->s6_addr32[1];
c = saddr->s6_addr32[2];
a = (__force u32)saddr->s6_addr32[0];
b = (__force u32)saddr->s6_addr32[1];
c = (__force u32)saddr->s6_addr32[2];

a += JHASH_GOLDEN_RATIO;
b += JHASH_GOLDEN_RATIO;
c += nf_ct_frag6_hash_rnd;
__jhash_mix(a, b, c);

a += saddr->s6_addr32[3];
b += daddr->s6_addr32[0];
c += daddr->s6_addr32[1];
a += (__force u32)saddr->s6_addr32[3];
b += (__force u32)daddr->s6_addr32[0];
c += (__force u32)daddr->s6_addr32[1];
__jhash_mix(a, b, c);

a += daddr->s6_addr32[2];
b += daddr->s6_addr32[3];
c += id;
a += (__force u32)daddr->s6_addr32[2];
b += (__force u32)daddr->s6_addr32[3];
c += (__force u32)id;
__jhash_mix(a, b, c);

return c & (FRAG6Q_HASHSZ - 1);
Expand Down Expand Up @@ -338,7 +338,7 @@ static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,


static struct nf_ct_frag6_queue *
nf_ct_frag6_create(unsigned int hash, u32 id, struct in6_addr *src, struct in6_addr *dst)
nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, struct in6_addr *dst)
{
struct nf_ct_frag6_queue *fq;

Expand Down Expand Up @@ -366,7 +366,7 @@ nf_ct_frag6_create(unsigned int hash, u32 id, struct in6_addr *src, struct
}

static __inline__ struct nf_ct_frag6_queue *
fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
{
struct nf_ct_frag6_queue *fq;
struct hlist_node *n;
Expand Down
6 changes: 2 additions & 4 deletions net/netfilter/nf_conntrack_core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -936,10 +936,8 @@ int nf_ct_port_nfattr_to_tuple(struct nfattr *tb[],
if (nfattr_bad_size(tb, CTA_PROTO_MAX, cta_min_proto))
return -EINVAL;

t->src.u.tcp.port =
*(u_int16_t *)NFA_DATA(tb[CTA_PROTO_SRC_PORT-1]);
t->dst.u.tcp.port =
*(u_int16_t *)NFA_DATA(tb[CTA_PROTO_DST_PORT-1]);
t->src.u.tcp.port = *(__be16 *)NFA_DATA(tb[CTA_PROTO_SRC_PORT-1]);
t->dst.u.tcp.port = *(__be16 *)NFA_DATA(tb[CTA_PROTO_DST_PORT-1]);

return 0;
}
Expand Down
10 changes: 5 additions & 5 deletions net/netfilter/nf_conntrack_ftp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -173,7 +173,7 @@ static int try_rfc959(const char *data, size_t dlen,

/* Grab port: number up to delimiter */
static int get_port(const char *data, int start, size_t dlen, char delim,
u_int16_t *port)
__be16 *port)
{
u_int16_t tmp_port = 0;
int i;
Expand Down Expand Up @@ -502,12 +502,12 @@ static int help(struct sk_buff **pskb,
.u = { .tcp = { 0 }},
},
.dst = { .protonum = 0xFF,
.u = { .tcp = { 0xFFFF }},
.u = { .tcp = { __constant_htons(0xFFFF) }},
},
};
if (cmd.l3num == PF_INET) {
exp->mask.src.u3.ip = 0xFFFFFFFF;
exp->mask.dst.u3.ip = 0xFFFFFFFF;
exp->mask.src.u3.ip = htonl(0xFFFFFFFF);
exp->mask.dst.u3.ip = htonl(0xFFFFFFFF);
} else {
memset(exp->mask.src.u3.ip6, 0xFF,
sizeof(exp->mask.src.u3.ip6));
Expand Down Expand Up @@ -588,7 +588,7 @@ static int __init nf_conntrack_ftp_init(void)
ftp[i][j].tuple.src.u.tcp.port = htons(ports[i]);
ftp[i][j].tuple.dst.protonum = IPPROTO_TCP;
ftp[i][j].mask.src.l3num = 0xFFFF;
ftp[i][j].mask.src.u.tcp.port = 0xFFFF;
ftp[i][j].mask.src.u.tcp.port = htons(0xFFFF);
ftp[i][j].mask.dst.protonum = 0xFF;
ftp[i][j].max_expected = 1;
ftp[i][j].timeout = 5 * 60; /* 5 Minutes */
Expand Down
37 changes: 18 additions & 19 deletions net/netfilter/nf_conntrack_netlink.c
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Original file line number Diff line number Diff line change
Expand Up @@ -113,7 +113,7 @@ ctnetlink_dump_tuples(struct sk_buff *skb,
static inline int
ctnetlink_dump_status(struct sk_buff *skb, const struct nf_conn *ct)
{
u_int32_t status = htonl((u_int32_t) ct->status);
__be32 status = htonl((u_int32_t) ct->status);
NFA_PUT(skb, CTA_STATUS, sizeof(status), &status);
return 0;

Expand All @@ -125,7 +125,7 @@ static inline int
ctnetlink_dump_timeout(struct sk_buff *skb, const struct nf_conn *ct)
{
long timeout_l = ct->timeout.expires - jiffies;
u_int32_t timeout;
__be32 timeout;

if (timeout_l < 0)
timeout = 0;
Expand Down Expand Up @@ -196,7 +196,7 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct,
{
enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
struct nfattr *nest_count = NFA_NEST(skb, type);
u_int32_t tmp;
__be32 tmp;

tmp = htonl(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
Expand All @@ -219,7 +219,7 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct,
static inline int
ctnetlink_dump_mark(struct sk_buff *skb, const struct nf_conn *ct)
{
u_int32_t mark = htonl(ct->mark);
__be32 mark = htonl(ct->mark);

NFA_PUT(skb, CTA_MARK, sizeof(u_int32_t), &mark);
return 0;
Expand All @@ -234,7 +234,7 @@ ctnetlink_dump_mark(struct sk_buff *skb, const struct nf_conn *ct)
static inline int
ctnetlink_dump_id(struct sk_buff *skb, const struct nf_conn *ct)
{
u_int32_t id = htonl(ct->id);
__be32 id = htonl(ct->id);
NFA_PUT(skb, CTA_ID, sizeof(u_int32_t), &id);
return 0;

Expand All @@ -245,7 +245,7 @@ ctnetlink_dump_id(struct sk_buff *skb, const struct nf_conn *ct)
static inline int
ctnetlink_dump_use(struct sk_buff *skb, const struct nf_conn *ct)
{
u_int32_t use = htonl(atomic_read(&ct->ct_general.use));
__be32 use = htonl(atomic_read(&ct->ct_general.use));

NFA_PUT(skb, CTA_USE, sizeof(u_int32_t), &use);
return 0;
Expand Down Expand Up @@ -610,12 +610,12 @@ ctnetlink_parse_nat(struct nfattr *nat,
return -EINVAL;

if (tb[CTA_NAT_MINIP-1])
range->min_ip = *(u_int32_t *)NFA_DATA(tb[CTA_NAT_MINIP-1]);
range->min_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MINIP-1]);

if (!tb[CTA_NAT_MAXIP-1])
range->max_ip = range->min_ip;
else
range->max_ip = *(u_int32_t *)NFA_DATA(tb[CTA_NAT_MAXIP-1]);
range->max_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MAXIP-1]);

if (range->min_ip)
range->flags |= IP_NAT_RANGE_MAP_IPS;
Expand Down Expand Up @@ -688,7 +688,7 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
ct = nf_ct_tuplehash_to_ctrack(h);

if (cda[CTA_ID-1]) {
u_int32_t id = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_ID-1]));
u_int32_t id = ntohl(*(__be32 *)NFA_DATA(cda[CTA_ID-1]));
if (ct->id != id) {
nf_ct_put(ct);
return -ENOENT;
Expand Down Expand Up @@ -781,7 +781,7 @@ static inline int
ctnetlink_change_status(struct nf_conn *ct, struct nfattr *cda[])
{
unsigned long d;
unsigned status = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]));
unsigned int status = ntohl(*(__be32 *)NFA_DATA(cda[CTA_STATUS-1]));
d = ct->status ^ status;

if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
Expand Down Expand Up @@ -880,7 +880,7 @@ ctnetlink_change_helper(struct nf_conn *ct, struct nfattr *cda[])
static inline int
ctnetlink_change_timeout(struct nf_conn *ct, struct nfattr *cda[])
{
u_int32_t timeout = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_TIMEOUT-1]));
u_int32_t timeout = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));

if (!del_timer(&ct->timeout))
return -ETIME;
Expand Down Expand Up @@ -942,7 +942,7 @@ ctnetlink_change_conntrack(struct nf_conn *ct, struct nfattr *cda[])

#if defined(CONFIG_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
#endif

return 0;
Expand All @@ -963,7 +963,7 @@ ctnetlink_create_conntrack(struct nfattr *cda[],

if (!cda[CTA_TIMEOUT-1])
goto err;
ct->timeout.expires = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_TIMEOUT-1]));
ct->timeout.expires = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));

ct->timeout.expires = jiffies + ct->timeout.expires * HZ;
ct->status |= IPS_CONFIRMED;
Expand All @@ -982,7 +982,7 @@ ctnetlink_create_conntrack(struct nfattr *cda[],

#if defined(CONFIG_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
#endif

help = nfct_help(ct);
Expand Down Expand Up @@ -1117,8 +1117,8 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
const struct nf_conntrack_expect *exp)
{
struct nf_conn *master = exp->master;
u_int32_t timeout = htonl((exp->timeout.expires - jiffies) / HZ);
u_int32_t id = htonl(exp->id);
__be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ);
__be32 id = htonl(exp->id);

if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0)
goto nfattr_failure;
Expand Down Expand Up @@ -1296,7 +1296,7 @@ ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
return -ENOENT;

if (cda[CTA_EXPECT_ID-1]) {
u_int32_t id = *(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
__be32 id = *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
if (exp->id != ntohl(id)) {
nf_conntrack_expect_put(exp);
return -ENOENT;
Expand Down Expand Up @@ -1351,8 +1351,7 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
return -ENOENT;

if (cda[CTA_EXPECT_ID-1]) {
u_int32_t id =
*(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
__be32 id = *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
if (exp->id != ntohl(id)) {
nf_conntrack_expect_put(exp);
return -ENOENT;
Expand Down
2 changes: 1 addition & 1 deletion net/netfilter/nf_conntrack_proto_sctp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -217,7 +217,7 @@ static int sctp_print_conntrack(struct seq_file *s,
for (offset = dataoff + sizeof(sctp_sctphdr_t), count = 0; \
offset < skb->len && \
(sch = skb_header_pointer(skb, offset, sizeof(_sch), &_sch)); \
offset += (htons(sch->length) + 3) & ~3, count++)
offset += (ntohs(sch->length) + 3) & ~3, count++)

/* Some validity checks to make sure the chunks are fine */
static int do_basic_checks(struct nf_conn *conntrack,
Expand Down
8 changes: 3 additions & 5 deletions net/netfilter/nf_conntrack_proto_tcp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -474,8 +474,8 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,

/* Fast path for timestamp-only option */
if (length == TCPOLEN_TSTAMP_ALIGNED*4
&& *(__u32 *)ptr ==
__constant_ntohl((TCPOPT_NOP << 24)
&& *(__be32 *)ptr ==
__constant_htonl((TCPOPT_NOP << 24)
| (TCPOPT_NOP << 16)
| (TCPOPT_TIMESTAMP << 8)
| TCPOLEN_TIMESTAMP))
Expand Down Expand Up @@ -506,9 +506,7 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff,
for (i = 0;
i < (opsize - TCPOLEN_SACK_BASE);
i += TCPOLEN_SACK_PERBLOCK) {
memcpy(&tmp, (__u32 *)(ptr + i) + 1,
sizeof(__u32));
tmp = ntohl(tmp);
tmp = ntohl(*((__be32 *)(ptr+i)+1));

if (after(tmp, *sack))
*sack = tmp;
Expand Down

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