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netfilter: nfnetlink: constify message attributes and headers 

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy 2009-08-25 16:07:58 +02:00
parent 3a6c2b419b
commit 3993832464
9 changed files with 55 additions and 35 deletions
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3
include/linux/netfilter/nfnetlink.h
View File

@ -58,7 +58,8 @@ struct nfgenmsg {
struct nfnl_callback
{
int (*call)(struct sock *nl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[]);
const struct nlmsghdr *nlh,
const struct nlattr * const cda[]);
const struct nla_policy *policy; /* netlink attribute policy */
const u_int16_t attr_count; /* number of nlattr's */
};

2
include/net/netfilter/nf_nat_core.h
View File

@ -31,6 +31,6 @@ struct nlattr;
extern int
(*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr);
const struct nlattr *attr);
#endif /* _NF_NAT_CORE_H */

6
net/ipv4/netfilter/nf_nat_core.c
View File

@ -620,7 +620,7 @@ static const struct nla_policy nat_nla_policy[CTA_NAT_MAX+1] = {
};
static int
nfnetlink_parse_nat(struct nlattr *nat,
nfnetlink_parse_nat(const struct nlattr *nat,
const struct nf_conn *ct, struct nf_nat_range *range)
{
struct nlattr *tb[CTA_NAT_MAX+1];
@ -656,7 +656,7 @@ nfnetlink_parse_nat(struct nlattr *nat,
static int
nfnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
struct nf_nat_range range;
@ -671,7 +671,7 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
static int
nfnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
return -EOPNOTSUPP;
}

2
net/netfilter/nf_conntrack_core.c
View File

@ -47,7 +47,7 @@
int (*nfnetlink_parse_nat_setup_hook)(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr) __read_mostly;
const struct nlattr *attr) __read_mostly;
EXPORT_SYMBOL_GPL(nfnetlink_parse_nat_setup_hook);
DEFINE_SPINLOCK(nf_conntrack_lock);

54
net/netfilter/nf_conntrack_netlink.c
View File

@ -704,7 +704,8 @@ ctnetlink_parse_tuple_proto(struct nlattr *attr,
}
static int
ctnetlink_parse_tuple(struct nlattr *cda[], struct nf_conntrack_tuple *tuple,
ctnetlink_parse_tuple(const struct nlattr * const cda[],
struct nf_conntrack_tuple *tuple,
enum ctattr_tuple type, u_int8_t l3num)
{
struct nlattr *tb[CTA_TUPLE_MAX+1];
@ -740,7 +741,7 @@ ctnetlink_parse_tuple(struct nlattr *cda[], struct nf_conntrack_tuple *tuple,
}
static inline int
ctnetlink_parse_help(struct nlattr *attr, char **helper_name)
ctnetlink_parse_help(const struct nlattr *attr, char **helper_name)
{
struct nlattr *tb[CTA_HELP_MAX+1];
@ -764,7 +765,8 @@ static const struct nla_policy ct_nla_policy[CTA_MAX+1] = {
static int
ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
@ -823,7 +825,8 @@ ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
static int
ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple_hash *h;
struct nf_conntrack_tuple tuple;
@ -884,7 +887,7 @@ out:
static int
ctnetlink_parse_nat_setup(struct nf_conn *ct,
enum nf_nat_manip_type manip,
struct nlattr *attr)
const struct nlattr *attr)
{
typeof(nfnetlink_parse_nat_setup_hook) parse_nat_setup;
@ -914,7 +917,7 @@ ctnetlink_parse_nat_setup(struct nf_conn *ct,
#endif
static int
ctnetlink_change_status(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_status(struct nf_conn *ct, const struct nlattr * const cda[])
{
unsigned long d;
unsigned int status = ntohl(nla_get_be32(cda[CTA_STATUS]));
@ -940,7 +943,7 @@ ctnetlink_change_status(struct nf_conn *ct, struct nlattr *cda[])
}
static int
ctnetlink_change_nat(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_nat(struct nf_conn *ct, const struct nlattr * const cda[])
{
#ifdef CONFIG_NF_NAT_NEEDED
int ret;
@ -966,7 +969,7 @@ ctnetlink_change_nat(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_helper(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_helper(struct nf_conn *ct, const struct nlattr * const cda[])
{
struct nf_conntrack_helper *helper;
struct nf_conn_help *help = nfct_help(ct);
@ -1028,7 +1031,7 @@ ctnetlink_change_helper(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_timeout(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_timeout(struct nf_conn *ct, const struct nlattr * const cda[])
{
u_int32_t timeout = ntohl(nla_get_be32(cda[CTA_TIMEOUT]));
@ -1042,9 +1045,10 @@ ctnetlink_change_timeout(struct nf_conn *ct, struct nlattr *cda[])
}
static inline int
ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_protoinfo(struct nf_conn *ct, const struct nlattr * const cda[])
{
struct nlattr *tb[CTA_PROTOINFO_MAX+1], *attr = cda[CTA_PROTOINFO];
const struct nlattr *attr = cda[CTA_PROTOINFO];
struct nlattr *tb[CTA_PROTOINFO_MAX+1];
struct nf_conntrack_l4proto *l4proto;
int err = 0;
@ -1061,7 +1065,7 @@ ctnetlink_change_protoinfo(struct nf_conn *ct, struct nlattr *cda[])
#ifdef CONFIG_NF_NAT_NEEDED
static inline int
change_nat_seq_adj(struct nf_nat_seq *natseq, struct nlattr *attr)
change_nat_seq_adj(struct nf_nat_seq *natseq, const struct nlattr * const attr)
{
struct nlattr *cda[CTA_NAT_SEQ_MAX+1];
@ -1089,7 +1093,8 @@ change_nat_seq_adj(struct nf_nat_seq *natseq, struct nlattr *attr)
}
static int
ctnetlink_change_nat_seq_adj(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_nat_seq_adj(struct nf_conn *ct,
const struct nlattr * const cda[])
{
int ret = 0;
struct nf_conn_nat *nat = nfct_nat(ct);
@ -1120,7 +1125,8 @@ ctnetlink_change_nat_seq_adj(struct nf_conn *ct, struct nlattr *cda[])
#endif
static int
ctnetlink_change_conntrack(struct nf_conn *ct, struct nlattr *cda[])
ctnetlink_change_conntrack(struct nf_conn *ct,
const struct nlattr * const cda[])
{
int err;
@ -1169,7 +1175,7 @@ ctnetlink_change_conntrack(struct nf_conn *ct, struct nlattr *cda[])
}
static struct nf_conn *
ctnetlink_create_conntrack(struct nlattr *cda[],
ctnetlink_create_conntrack(const struct nlattr * const cda[],
struct nf_conntrack_tuple *otuple,
struct nf_conntrack_tuple *rtuple,
u8 u3)
@ -1304,7 +1310,8 @@ err1:
static int
ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple otuple, rtuple;
struct nf_conntrack_tuple_hash *h = NULL;
@ -1629,7 +1636,8 @@ static const struct nla_policy exp_nla_policy[CTA_EXPECT_MAX+1] = {
static int
ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;
@ -1689,7 +1697,8 @@ out:
static int
ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_expect *exp;
struct nf_conntrack_tuple tuple;
@ -1767,13 +1776,15 @@ ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
return 0;
}
static int
ctnetlink_change_expect(struct nf_conntrack_expect *x, struct nlattr *cda[])
ctnetlink_change_expect(struct nf_conntrack_expect *x,
const struct nlattr * const cda[])
{
return -EOPNOTSUPP;
}
static int
ctnetlink_create_expect(struct nlattr *cda[], u_int8_t u3, u32 pid, int report)
ctnetlink_create_expect(const struct nlattr * const cda[], u_int8_t u3,
u32 pid, int report)
{
struct nf_conntrack_tuple tuple, mask, master_tuple;
struct nf_conntrack_tuple_hash *h = NULL;
@ -1831,7 +1842,8 @@ out:
static int
ctnetlink_new_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *cda[])
const struct nlmsghdr *nlh,
const struct nlattr * const cda[])
{
struct nf_conntrack_tuple tuple;
struct nf_conntrack_expect *exp;

2
net/netfilter/nfnetlink.c
View File

@ -170,7 +170,7 @@ replay:
if (err < 0)
return err;
err = nc->call(nfnl, skb, nlh, cda);
err = nc->call(nfnl, skb, nlh, (const struct nlattr **)cda);
if (err == -EAGAIN)
goto replay;
return err;

6
net/netfilter/nfnetlink_log.c
View File

@ -694,7 +694,8 @@ static struct notifier_block nfulnl_rtnl_notifier = {
static int
nfulnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
return -ENOTSUPP;
}
@ -716,7 +717,8 @@ static const struct nla_policy nfula_cfg_policy[NFULA_CFG_MAX+1] = {
static int
nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfula[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfula[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t group_num = ntohs(nfmsg->res_id);

9
net/netfilter/nfnetlink_queue.c
View File

@ -608,7 +608,8 @@ static const struct nla_policy nfqa_verdict_policy[NFQA_MAX+1] = {
static int
nfqnl_recv_verdict(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);
@ -670,7 +671,8 @@ err_out_unlock:
static int
nfqnl_recv_unsupp(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
return -ENOTSUPP;
}
@ -687,7 +689,8 @@ static const struct nf_queue_handler nfqh = {
static int
nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *nfqa[])
const struct nlmsghdr *nlh,
const struct nlattr * const nfqa[])
{
struct nfgenmsg *nfmsg = NLMSG_DATA(nlh);
u_int16_t queue_num = ntohs(nfmsg->res_id);

6
net/netfilter/xt_osf.c
View File

@ -70,7 +70,8 @@ static void xt_osf_finger_free_rcu(struct rcu_head *rcu_head)
}
static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
const struct nlmsghdr *nlh,
const struct nlattr * const osf_attrs[])
{
struct xt_osf_user_finger *f;
struct xt_osf_finger *kf = NULL, *sf;
@ -112,7 +113,8 @@ static int xt_osf_add_callback(struct sock *ctnl, struct sk_buff *skb,
}
static int xt_osf_remove_callback(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nlattr *osf_attrs[])
const struct nlmsghdr *nlh,
const struct nlattr * const osf_attrs[])
{
struct xt_osf_user_finger *f;
struct xt_osf_finger *sf;