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inet_diag: Switch from _GETSOCK to IPPROTO_ numbers 

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When dumping the AF_INET/AF_INET6 sockets user will also specify the protocol,
so prepare the protocol diag handlers to work with IPPROTO_ constants.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2011-12-06 08:05:24 +00:00 committed by David S. Miller
parent 37f352b5e3
commit f13c95f0e2
3 changed files with 27 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/dccp/diag.c
View File

@ -51,7 +51,7 @@ static void dccp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
static const struct inet_diag_handler dccp_diag_handler = { static const struct inet_diag_handler dccp_diag_handler = {
.idiag_hashinfo = &dccp_hashinfo, .idiag_hashinfo = &dccp_hashinfo,
.idiag_get_info = dccp_diag_get_info, .idiag_get_info = dccp_diag_get_info,
.idiag_type = DCCPDIAG_GETSOCK, .idiag_type = IPPROTO_DCCP,
.idiag_info_size = sizeof(struct tcp_info), .idiag_info_size = sizeof(struct tcp_info),
}; };
@ -71,4 +71,4 @@ module_exit(dccp_diag_fini);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_AUTHOR("Arnaldo Carvalho de Melo <acme@mandriva.com>"); MODULE_AUTHOR("Arnaldo Carvalho de Melo <acme@mandriva.com>");
MODULE_DESCRIPTION("DCCP inet_diag handler"); MODULE_DESCRIPTION("DCCP inet_diag handler");
MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, DCCPDIAG_GETSOCK); MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 33);

34
net/ipv4/inet_diag.c
View File

@ -50,19 +50,31 @@ static struct sock *sdiagnl;
#define INET_DIAG_PUT(skb, attrtype, attrlen) \ #define INET_DIAG_PUT(skb, attrtype, attrlen) \
RTA_DATA(__RTA_PUT(skb, attrtype, attrlen)) RTA_DATA(__RTA_PUT(skb, attrtype, attrlen))
static inline int inet_diag_type2proto(int type)
{
switch (type) {
case TCPDIAG_GETSOCK:
return IPPROTO_TCP;
case DCCPDIAG_GETSOCK:
return IPPROTO_DCCP;
default:
return 0;
}
}
static DEFINE_MUTEX(inet_diag_table_mutex); static DEFINE_MUTEX(inet_diag_table_mutex);
static const struct inet_diag_handler *inet_diag_lock_handler(int type) static const struct inet_diag_handler *inet_diag_lock_handler(int proto)
{ {
if (!inet_diag_table[type]) if (!inet_diag_table[proto])
request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK, request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
NETLINK_SOCK_DIAG, type); NETLINK_SOCK_DIAG, proto);
mutex_lock(&inet_diag_table_mutex); mutex_lock(&inet_diag_table_mutex);
if (!inet_diag_table[type]) if (!inet_diag_table[proto])
return ERR_PTR(-ENOENT); return ERR_PTR(-ENOENT);
return inet_diag_table[type]; return inet_diag_table[proto];
} }
static inline void inet_diag_unlock_handler( static inline void inet_diag_unlock_handler(
@ -85,7 +97,7 @@ static int inet_csk_diag_fill(struct sock *sk,
unsigned char *b = skb_tail_pointer(skb); unsigned char *b = skb_tail_pointer(skb);
const struct inet_diag_handler *handler; const struct inet_diag_handler *handler;
handler = inet_diag_table[unlh->nlmsg_type]; handler = inet_diag_table[inet_diag_type2proto(unlh->nlmsg_type)];
BUG_ON(handler == NULL); BUG_ON(handler == NULL);
nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r)); nlh = NLMSG_PUT(skb, pid, seq, unlh->nlmsg_type, sizeof(*r));
@ -257,7 +269,7 @@ static int inet_diag_get_exact(struct sk_buff *in_skb,
struct inet_hashinfo *hashinfo; struct inet_hashinfo *hashinfo;
const struct inet_diag_handler *handler; const struct inet_diag_handler *handler;
handler = inet_diag_lock_handler(nlh->nlmsg_type); handler = inet_diag_lock_handler(inet_diag_type2proto(nlh->nlmsg_type));
if (IS_ERR(handler)) { if (IS_ERR(handler)) {
err = PTR_ERR(handler); err = PTR_ERR(handler);
goto unlock; goto unlock;
@ -707,7 +719,7 @@ static int inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
if (nlmsg_attrlen(cb->nlh, sizeof(struct inet_diag_req))) if (nlmsg_attrlen(cb->nlh, sizeof(struct inet_diag_req)))
bc = nlmsg_find_attr(cb->nlh, sizeof(*r), INET_DIAG_REQ_BYTECODE); bc = nlmsg_find_attr(cb->nlh, sizeof(*r), INET_DIAG_REQ_BYTECODE);
handler = inet_diag_lock_handler(cb->nlh->nlmsg_type); handler = inet_diag_lock_handler(inet_diag_type2proto(cb->nlh->nlmsg_type));
if (IS_ERR(handler)) if (IS_ERR(handler))
goto unlock; goto unlock;
@ -907,7 +919,7 @@ int inet_diag_register(const struct inet_diag_handler *h)
const __u16 type = h->idiag_type; const __u16 type = h->idiag_type;
int err = -EINVAL; int err = -EINVAL;
if (type >= INET_DIAG_GETSOCK_MAX) if (type >= IPPROTO_MAX)
goto out; goto out;
mutex_lock(&inet_diag_table_mutex); mutex_lock(&inet_diag_table_mutex);
@ -926,7 +938,7 @@ void inet_diag_unregister(const struct inet_diag_handler *h)
{ {
const __u16 type = h->idiag_type; const __u16 type = h->idiag_type;
if (type >= INET_DIAG_GETSOCK_MAX) if (type >= IPPROTO_MAX)
return; return;
mutex_lock(&inet_diag_table_mutex); mutex_lock(&inet_diag_table_mutex);
@ -937,7 +949,7 @@ EXPORT_SYMBOL_GPL(inet_diag_unregister);
static int __init inet_diag_init(void) static int __init inet_diag_init(void)
{ {
const int inet_diag_table_size = (INET_DIAG_GETSOCK_MAX * const int inet_diag_table_size = (IPPROTO_MAX *
sizeof(struct inet_diag_handler *)); sizeof(struct inet_diag_handler *));
int err = -ENOMEM; int err = -ENOMEM;

4
net/ipv4/tcp_diag.c
View File

@ -37,7 +37,7 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
static const struct inet_diag_handler tcp_diag_handler = { static const struct inet_diag_handler tcp_diag_handler = {
.idiag_hashinfo = &tcp_hashinfo, .idiag_hashinfo = &tcp_hashinfo,
.idiag_get_info = tcp_diag_get_info, .idiag_get_info = tcp_diag_get_info,
.idiag_type = TCPDIAG_GETSOCK, .idiag_type = IPPROTO_TCP,
.idiag_info_size = sizeof(struct tcp_info), .idiag_info_size = sizeof(struct tcp_info),
}; };
@ -54,4 +54,4 @@ static void __exit tcp_diag_exit(void)
module_init(tcp_diag_init); module_init(tcp_diag_init);
module_exit(tcp_diag_exit); module_exit(tcp_diag_exit);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, TCPDIAG_GETSOCK); MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 6);