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[NETFILTER]: nfnetlink: make subsystem and callbacks const

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Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-09-28 14:15:45 -07:00 committed by David S. Miller
parent 169e367425
commit 7c8d4cb419
5 changed files with 22 additions and 22 deletions
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10
include/linux/netfilter/nfnetlink.h
View File

@ -118,9 +118,9 @@ struct nfnl_callback
struct nfnetlink_subsystem
{
const char *name;
__u8 subsys_id; /* nfnetlink subsystem ID */
__u8 cb_count; /* number of callbacks */
struct nfnl_callback *cb; /* callback for individual types */
__u8 subsys_id; /* nfnetlink subsystem ID */
__u8 cb_count; /* number of callbacks */
const struct nfnl_callback *cb; /* callback for individual types */
};
extern void __nfa_fill(struct sk_buff *skb, int attrtype,
@ -129,8 +129,8 @@ extern void __nfa_fill(struct sk_buff *skb, int attrtype,
({ if (skb_tailroom(skb) < (int)NFA_SPACE(attrlen)) goto nfattr_failure; \
__nfa_fill(skb, attrtype, attrlen, data); })
extern int nfnetlink_subsys_register(struct nfnetlink_subsystem *n);
extern int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n);
extern int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
extern void nfattr_parse(struct nfattr *tb[], int maxattr,
struct nfattr *nfa, int len);

8
net/netfilter/nf_conntrack_netlink.c
View File

@ -1548,7 +1548,7 @@ static struct notifier_block ctnl_notifier_exp = {
};
#endif
static struct nfnl_callback ctnl_cb[IPCTNL_MSG_MAX] = {
static const struct nfnl_callback ctnl_cb[IPCTNL_MSG_MAX] = {
[IPCTNL_MSG_CT_NEW] = { .call = ctnetlink_new_conntrack,
.attr_count = CTA_MAX, },
[IPCTNL_MSG_CT_GET] = { .call = ctnetlink_get_conntrack,
@ -1559,7 +1559,7 @@ static struct nfnl_callback ctnl_cb[IPCTNL_MSG_MAX] = {
.attr_count = CTA_MAX, },
};
static struct nfnl_callback ctnl_exp_cb[IPCTNL_MSG_EXP_MAX] = {
static const struct nfnl_callback ctnl_exp_cb[IPCTNL_MSG_EXP_MAX] = {
[IPCTNL_MSG_EXP_GET] = { .call = ctnetlink_get_expect,
.attr_count = CTA_EXPECT_MAX, },
[IPCTNL_MSG_EXP_NEW] = { .call = ctnetlink_new_expect,
@ -1568,14 +1568,14 @@ static struct nfnl_callback ctnl_exp_cb[IPCTNL_MSG_EXP_MAX] = {
.attr_count = CTA_EXPECT_MAX, },
};
static struct nfnetlink_subsystem ctnl_subsys = {
static const struct nfnetlink_subsystem ctnl_subsys = {
.name = "conntrack",
.subsys_id = NFNL_SUBSYS_CTNETLINK,
.cb_count = IPCTNL_MSG_MAX,
.cb = ctnl_cb,
};
static struct nfnetlink_subsystem ctnl_exp_subsys = {
static const struct nfnetlink_subsystem ctnl_exp_subsys = {
.name = "conntrack_expect",
.subsys_id = NFNL_SUBSYS_CTNETLINK_EXP,
.cb_count = IPCTNL_MSG_EXP_MAX,

18
net/netfilter/nfnetlink.c
View File

@ -41,7 +41,7 @@ MODULE_ALIAS_NET_PF_PROTO(PF_NETLINK, NETLINK_NETFILTER);
static char __initdata nfversion[] = "0.30";
static struct sock *nfnl = NULL;
static struct nfnetlink_subsystem *subsys_table[NFNL_SUBSYS_COUNT];
static const struct nfnetlink_subsystem *subsys_table[NFNL_SUBSYS_COUNT];
static DEFINE_MUTEX(nfnl_mutex);
static void nfnl_lock(void)
@ -66,7 +66,7 @@ static void nfnl_unlock(void)
nfnl->sk_data_ready(nfnl, 0);
}
int nfnetlink_subsys_register(struct nfnetlink_subsystem *n)
int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n)
{
nfnl_lock();
if (subsys_table[n->subsys_id]) {
@ -80,7 +80,7 @@ int nfnetlink_subsys_register(struct nfnetlink_subsystem *n)
}
EXPORT_SYMBOL_GPL(nfnetlink_subsys_register);
int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n)
int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n)
{
nfnl_lock();
subsys_table[n->subsys_id] = NULL;
@ -90,7 +90,7 @@ int nfnetlink_subsys_unregister(struct nfnetlink_subsystem *n)
}
EXPORT_SYMBOL_GPL(nfnetlink_subsys_unregister);
static inline struct nfnetlink_subsystem *nfnetlink_get_subsys(u_int16_t type)
static inline const struct nfnetlink_subsystem *nfnetlink_get_subsys(u_int16_t type)
{
u_int8_t subsys_id = NFNL_SUBSYS_ID(type);
@ -100,8 +100,8 @@ static inline struct nfnetlink_subsystem *nfnetlink_get_subsys(u_int16_t type)
return subsys_table[subsys_id];
}
static inline struct nfnl_callback *
nfnetlink_find_client(u_int16_t type, struct nfnetlink_subsystem *ss)
static inline const struct nfnl_callback *
nfnetlink_find_client(u_int16_t type, const struct nfnetlink_subsystem *ss)
{
u_int8_t cb_id = NFNL_MSG_TYPE(type);
@ -147,7 +147,7 @@ EXPORT_SYMBOL_GPL(nfattr_parse);
*
*/
static int
nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
nfnetlink_check_attributes(const struct nfnetlink_subsystem *subsys,
struct nlmsghdr *nlh, struct nfattr *cda[])
{
int min_len = NLMSG_SPACE(sizeof(struct nfgenmsg));
@ -197,8 +197,8 @@ EXPORT_SYMBOL_GPL(nfnetlink_unicast);
/* Process one complete nfnetlink message. */
static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct nfnl_callback *nc;
struct nfnetlink_subsystem *ss;
const struct nfnl_callback *nc;
const struct nfnetlink_subsystem *ss;
int type, err;
if (security_netlink_recv(skb, CAP_NET_ADMIN))

4
net/netfilter/nfnetlink_log.c
View File

@ -883,14 +883,14 @@ nfulnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
return ret;
}
static struct nfnl_callback nfulnl_cb[NFULNL_MSG_MAX] = {
static const struct nfnl_callback nfulnl_cb[NFULNL_MSG_MAX] = {
[NFULNL_MSG_PACKET] = { .call = nfulnl_recv_unsupp,
.attr_count = NFULA_MAX, },
[NFULNL_MSG_CONFIG] = { .call = nfulnl_recv_config,
.attr_count = NFULA_CFG_MAX, },
};
static struct nfnetlink_subsystem nfulnl_subsys = {
static const struct nfnetlink_subsystem nfulnl_subsys = {
.name = "log",
.subsys_id = NFNL_SUBSYS_ULOG,
.cb_count = NFULNL_MSG_MAX,

4
net/netfilter/nfnetlink_queue.c
View File

@ -961,7 +961,7 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
return ret;
}
static struct nfnl_callback nfqnl_cb[NFQNL_MSG_MAX] = {
static const struct nfnl_callback nfqnl_cb[NFQNL_MSG_MAX] = {
[NFQNL_MSG_PACKET] = { .call = nfqnl_recv_unsupp,
.attr_count = NFQA_MAX, },
[NFQNL_MSG_VERDICT] = { .call = nfqnl_recv_verdict,
@ -970,7 +970,7 @@ static struct nfnl_callback nfqnl_cb[NFQNL_MSG_MAX] = {
.attr_count = NFQA_CFG_MAX, },
};
static struct nfnetlink_subsystem nfqnl_subsys = {
static const struct nfnetlink_subsystem nfqnl_subsys = {
.name = "nf_queue",
.subsys_id = NFNL_SUBSYS_QUEUE,
.cb_count = NFQNL_MSG_MAX,