[NETLINK]: allocate group bitmaps dynamically

[safe/jmp/linux-2.6] / include / linux / netlink.h

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index f41688f..b971ddd 100644 (file)
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -31,7 +31,7 @@ struct sockaddr_nl
 {
        sa_family_t     nl_family;      /* AF_NETLINK   */
        unsigned short  nl_pad;         /* zero         */
-       __u32           nl_pid;         /* process pid  */
+       __u32           nl_pid;         /* port ID      */
                __u32           nl_groups;      /* multicast groups mask */
 };
 
@@ -41,7 +41,7 @@ struct nlmsghdr
        __u16           nlmsg_type;     /* Message content */
        __u16           nlmsg_flags;    /* Additional flags */
        __u32           nlmsg_seq;      /* Sequence number */
-       __u32           nlmsg_pid;      /* Sending process PID */
+       __u32           nlmsg_pid;      /* Sending process port ID */
 };
 
 /* Flags values */
@@ -161,6 +161,7 @@ extern struct sock *netlink_kernel_create(int unit, unsigned int groups,
                                          void (*input)(struct sock *sk, int len),
                                          struct mutex *cb_mutex,
                                          struct module *module);
+extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
 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);