netlink: Remove nonblock parameter from netlink_attachskb

[linux-2.6.git] / include / linux / netlink.h

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index b971ddd24090e4c9f496a88ec7eb8419b6416259..9ff1b54908f3a2260a01bea28b81ab811713fdd5 100644 (file)
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -27,6 +27,8 @@
 
 #define MAX_LINKS 32           
 
+struct net;
+
 struct sockaddr_nl
 {
        sa_family_t     nl_family;      /* AF_NETLINK   */
@@ -129,6 +131,20 @@ struct nlattr
        __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)))
@@ -150,6 +166,7 @@ struct netlink_skb_parms
        __u32                   dst_group;
        kernel_cap_t            eff_cap;
        __u32                   loginuid;       /* Login (audit) uid */
+       __u32                   sessionid;      /* Session id (audit) */
        __u32                   sid;            /* SELinux security id */
 };
 
@@ -157,11 +174,14 @@ struct netlink_skb_parms
 #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);
 extern int netlink_has_listeners(struct sock *sk, unsigned int group);
 extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
@@ -173,10 +193,10 @@ extern int netlink_unregister_notifier(struct notifier_block *nb);
 
 /* 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);
+int netlink_attachskb(struct sock *sk, struct sk_buff *skb,
+                     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.
@@ -200,11 +220,12 @@ struct netlink_callback
        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;
 };
@@ -226,7 +247,7 @@ __nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
 }
 
 #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); })