#define MAX_LINKS 32
+struct net;
+
struct sockaddr_nl
{
sa_family_t nl_family; /* AF_NETLINK */
__u16 nla_type;
};
+/*
+ * nla_type (16 bits)
+ * +---+---+-------------------------------+
+ * | N | O | Attribute Type |
+ * +---+---+-------------------------------+
+ * N := Carries nested attributes
+ * O := Payload stored in network byte order
+ *
+ * Note: The N and O flag are mutually exclusive.
+ */
+#define NLA_F_NESTED (1 << 15)
+#define NLA_F_NET_BYTEORDER (1 << 14)
+#define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
+
#define NLA_ALIGNTO 4
#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
__u32 dst_group;
kernel_cap_t eff_cap;
__u32 loginuid; /* Login (audit) uid */
+ __u32 sessionid; /* Session id (audit) */
__u32 sid; /* SELinux security id */
};
#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds)
-extern struct sock *netlink_kernel_create(int unit, unsigned int groups,
- void (*input)(struct sock *sk, int len),
+extern struct sock *netlink_kernel_create(struct net *net,
+ int unit,unsigned int groups,
+ void (*input)(struct sk_buff *skb),
struct mutex *cb_mutex,
struct module *module);
+extern void netlink_kernel_release(struct sock *sk);
extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group);
extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
/* finegrained unicast helpers: */
struct sock *netlink_getsockbyfilp(struct file *filp);
int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock,
- long timeo, struct sock *ssk);
+ long *timeo, struct sock *ssk);
void netlink_detachskb(struct sock *sk, struct sk_buff *skb);
-int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol);
+int netlink_sendskb(struct sock *sk, struct sk_buff *skb);
/*
* skb should fit one page. This choice is good for headerless malloc.
int (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
int family;
- long args[5];
+ long args[6];
};
struct netlink_notify
{
+ struct net *net;
int pid;
int protocol;
};
}
#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
-({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) \
+({ if (unlikely(skb_tailroom(skb) < (int)NLMSG_SPACE(len))) \
goto nlmsg_failure; \
__nlmsg_put(skb, pid, seq, type, len, flags); })