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Diffstat (limited to 'src/include/linux/netlink.h')
-rw-r--r--src/include/linux/netlink.h212
1 files changed, 79 insertions, 133 deletions
diff --git a/src/include/linux/netlink.h b/src/include/linux/netlink.h
index 1aeee628b..777a1b7da 100644
--- a/src/include/linux/netlink.h
+++ b/src/include/linux/netlink.h
@@ -1,14 +1,15 @@
-#ifndef __LINUX_NETLINK_H
-#define __LINUX_NETLINK_H
+#ifndef _UAPI__LINUX_NETLINK_H
+#define _UAPI__LINUX_NETLINK_H
-#include <linux/socket.h> /* for sa_family_t */
+#include <linux/kernel.h>
+#include <linux/socket.h> /* for __kernel_sa_family_t */
#include <linux/types.h>
#define NETLINK_ROUTE 0 /* Routing/device hook */
-#define NETLINK_W1 1 /* 1-wire subsystem */
+#define NETLINK_UNUSED 1 /* Unused number */
#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
-#define NETLINK_FIREWALL 3 /* Firewalling hook */
-#define NETLINK_INET_DIAG 4 /* INET socket monitoring */
+#define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */
+#define NETLINK_SOCK_DIAG 4 /* socket monitoring */
#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
#define NETLINK_XFRM 6 /* ipsec */
#define NETLINK_SELINUX 7 /* SELinux event notifications */
@@ -21,24 +22,29 @@
#define NETLINK_DNRTMSG 14 /* DECnet routing messages */
#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
#define NETLINK_GENERIC 16
+/* leave room for NETLINK_DM (DM Events) */
+#define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
+#define NETLINK_ECRYPTFS 19
+#define NETLINK_RDMA 20
+#define NETLINK_CRYPTO 21 /* Crypto layer */
+
+#define NETLINK_INET_DIAG NETLINK_SOCK_DIAG
#define MAX_LINKS 32
-struct sockaddr_nl
-{
- sa_family_t nl_family; /* AF_NETLINK */
+struct sockaddr_nl {
+ __kernel_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 */
};
-struct nlmsghdr
-{
+struct nlmsghdr {
__u32 nlmsg_len; /* Length of message including header */
__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 */
@@ -47,6 +53,7 @@ struct nlmsghdr
#define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */
#define NLM_F_ACK 4 /* Reply with ack, with zero or error code */
#define NLM_F_ECHO 8 /* Echo this request */
+#define NLM_F_DUMP_INTR 16 /* Dump was inconsistent due to sequence change */
/* Modifiers to GET request */
#define NLM_F_ROOT 0x100 /* specify tree root */
@@ -69,10 +76,10 @@ struct nlmsghdr
Check NLM_F_EXCL
*/
-#define NLMSG_ALIGNTO 4
+#define NLMSG_ALIGNTO 4U
#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
-#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN))
+#define NLMSG_LENGTH(len) ((len) + 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), \
@@ -89,21 +96,54 @@ struct nlmsghdr
#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
-struct nlmsgerr
-{
+struct nlmsgerr {
int error;
struct nlmsghdr msg;
};
-#define NETLINK_ADD_MEMBERSHIP 1
-#define NETLINK_DROP_MEMBERSHIP 2
-#define NETLINK_PKTINFO 3
-
-struct nl_pktinfo
-{
+#define NETLINK_ADD_MEMBERSHIP 1
+#define NETLINK_DROP_MEMBERSHIP 2
+#define NETLINK_PKTINFO 3
+#define NETLINK_BROADCAST_ERROR 4
+#define NETLINK_NO_ENOBUFS 5
+#define NETLINK_RX_RING 6
+#define NETLINK_TX_RING 7
+#define NETLINK_LISTEN_ALL_NSID 8
+#define NETLINK_LIST_MEMBERSHIPS 9
+
+struct nl_pktinfo {
__u32 group;
};
+struct nl_mmap_req {
+ unsigned int nm_block_size;
+ unsigned int nm_block_nr;
+ unsigned int nm_frame_size;
+ unsigned int nm_frame_nr;
+};
+
+struct nl_mmap_hdr {
+ unsigned int nm_status;
+ unsigned int nm_len;
+ __u32 nm_group;
+ /* credentials */
+ __u32 nm_pid;
+ __u32 nm_uid;
+ __u32 nm_gid;
+};
+
+enum nl_mmap_status {
+ NL_MMAP_STATUS_UNUSED,
+ NL_MMAP_STATUS_RESERVED,
+ NL_MMAP_STATUS_VALID,
+ NL_MMAP_STATUS_COPY,
+ NL_MMAP_STATUS_SKIP,
+};
+
+#define NL_MMAP_MSG_ALIGNMENT NLMSG_ALIGNTO
+#define NL_MMAP_MSG_ALIGN(sz) __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
+#define NL_MMAP_HDRLEN NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
+
#define NET_MAJOR 36 /* Major 36 is reserved for networking */
enum {
@@ -120,122 +160,28 @@ enum {
* <-------------- nlattr->nla_len -------------->
*/
-struct nlattr
-{
+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>
-#include <linux/skbuff.h>
-
-struct netlink_skb_parms
-{
- struct ucred creds; /* Skb credentials */
- __u32 pid;
- __u32 dst_pid;
- __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, 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, 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, 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);
-
/*
- * skb should fit one page. This choice is good for headerless malloc.
+ * 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 NLMSG_GOODORDER 0
-#define NLMSG_GOODSIZE (SKB_MAX_ORDER(0, NLMSG_GOODORDER))
-
-
-struct netlink_callback
-{
- struct sk_buff *skb;
- struct nlmsghdr *nlh;
- int (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
- int (*done)(struct netlink_callback *cb);
- int family;
- long args[5];
-};
-
-struct netlink_notify
-{
- int pid;
- int protocol;
-};
-
-static __inline__ struct nlmsghdr *
-__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 = 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 NLA_F_NESTED (1 << 15)
+#define NLA_F_NET_BYTEORDER (1 << 14)
+#define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
-#define 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,
- int (*dump)(struct sk_buff *skb, struct netlink_callback*),
- int (*done)(struct netlink_callback*));
-
-
-#define NL_NONROOT_RECV 0x1
-#define NL_NONROOT_SEND 0x2
-extern void netlink_set_nonroot(int protocol, unsigned flag);
+#define NLA_ALIGNTO 4
+#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
+#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
-#endif /* __KERNEL__ */
-#endif /* __LINUX_NETLINK_H */
+#endif /* _UAPI__LINUX_NETLINK_H */
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