#include <linux/types.h>
#define NETLINK_ROUTE 0 /* Routing/device hook */
-#define NETLINK_SKIP 1 /* Reserved for ENskip */
+#define NETLINK_W1 1 /* 1-wire subsystem */
#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
#define NETLINK_FIREWALL 3 /* Firewalling hook */
-#define NETLINK_TCPDIAG 4 /* TCP socket monitoring */
+#define NETLINK_INET_DIAG 4 /* INET socket monitoring */
#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
#define NETLINK_XFRM 6 /* ipsec */
#define NETLINK_SELINUX 7 /* SELinux event notifications */
-#define NETLINK_ARPD 8
+#define NETLINK_ISCSI 8 /* Open-iSCSI */
#define NETLINK_AUDIT 9 /* auditing */
-#define NETLINK_ROUTE6 11 /* af_inet6 route comm channel */
+#define NETLINK_FIB_LOOKUP 10
+#define NETLINK_CONNECTOR 11
+#define NETLINK_NETFILTER 12 /* netfilter subsystem */
#define NETLINK_IP6_FW 13
#define NETLINK_DNRTMSG 14 /* DECnet routing messages */
#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
-#define NETLINK_TAPBASE 16 /* 16 to 31 are ethertap */
+#define NETLINK_GENERIC 16
#define MAX_LINKS 32
#define NLMSG_ALIGNTO 4
#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
-#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN))
#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
#define NLMSG_DONE 0x3 /* End of a dump */
#define NLMSG_OVERRUN 0x4 /* Data lost */
+#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
+
struct nlmsgerr
{
int error;
struct nlmsghdr msg;
};
+#define NETLINK_ADD_MEMBERSHIP 1
+#define NETLINK_DROP_MEMBERSHIP 2
+#define NETLINK_PKTINFO 3
+
+struct nl_pktinfo
+{
+ __u32 group;
+};
+
#define NET_MAJOR 36 /* Major 36 is reserved for networking */
enum {
NETLINK_CONNECTED,
};
+/*
+ * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
+ * +---------------------+- - -+- - - - - - - - - -+- - -+
+ * | Header | Pad | Payload | Pad |
+ * | (struct nlattr) | ing | | ing |
+ * +---------------------+- - -+- - - - - - - - - -+- - -+
+ * <-------------- nlattr->nla_len -------------->
+ */
+
+struct nlattr
+{
+ __u16 nla_len;
+ __u16 nla_type;
+};
+
+#define NLA_ALIGNTO 4
+#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
+#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
+
#ifdef __KERNEL__
#include <linux/capability.h>
{
struct ucred creds; /* Skb credentials */
__u32 pid;
- __u32 groups;
__u32 dst_pid;
- __u32 dst_groups;
+ __u32 dst_group;
kernel_cap_t eff_cap;
__u32 loginuid; /* Login (audit) uid */
+ __u32 sid; /* SELinux security id */
};
#define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb))
#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds)
-extern struct sock *netlink_kernel_create(int unit, void (*input)(struct sock *sk, int len));
+extern struct sock *netlink_kernel_create(int unit, unsigned int groups, void (*input)(struct sock *sk, int len), struct module *module);
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);
extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid,
- __u32 group, int allocation);
+ __u32 group, gfp_t allocation);
extern void netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code);
extern int netlink_register_notifier(struct notifier_block *nb);
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);
+int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock,
+ 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 (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
int family;
- long args[4];
+ long args[5];
};
struct netlink_notify
};
static __inline__ struct nlmsghdr *
-__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len)
+__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
{
struct nlmsghdr *nlh;
int size = NLMSG_LENGTH(len);
nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
nlh->nlmsg_type = type;
nlh->nlmsg_len = size;
- nlh->nlmsg_flags = 0;
+ nlh->nlmsg_flags = flags;
nlh->nlmsg_pid = pid;
nlh->nlmsg_seq = seq;
+ memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size);
return nlh;
}
+#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
+({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) \
+ goto nlmsg_failure; \
+ __nlmsg_put(skb, pid, seq, type, len, flags); })
+
#define NLMSG_PUT(skb, pid, seq, type, len) \
-({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) goto nlmsg_failure; \
- __nlmsg_put(skb, pid, seq, type, len); })
+ NLMSG_NEW(skb, pid, seq, type, len, 0)
+
+#define NLMSG_NEW_ANSWER(skb, cb, type, len, flags) \
+ NLMSG_NEW(skb, NETLINK_CB((cb)->skb).pid, \
+ (cb)->nlh->nlmsg_seq, type, len, flags)
+
+#define NLMSG_END(skb, nlh) \
+({ (nlh)->nlmsg_len = (skb)->tail - (unsigned char *) (nlh); \
+ (skb)->len; })
+
+#define NLMSG_CANCEL(skb, nlh) \
+({ skb_trim(skb, (unsigned char *) (nlh) - (skb)->data); \
+ -1; })
extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
struct nlmsghdr *nlh,
git://git.onelab.eu / linux-2.6.git / blobdiff