aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/netlink.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/netlink.h')
-rw-r--r--include/linux/netlink.h152
1 files changed, 1 insertions, 151 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 6d3af05c107c..e0f746b7b95c 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -1,160 +1,12 @@
1#ifndef __LINUX_NETLINK_H 1#ifndef __LINUX_NETLINK_H
2#define __LINUX_NETLINK_H 2#define __LINUX_NETLINK_H
3 3
4#include <linux/socket.h> /* for __kernel_sa_family_t */
5#include <linux/types.h>
6
7#define NETLINK_ROUTE 0 /* Routing/device hook */
8#define NETLINK_UNUSED 1 /* Unused number */
9#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
10#define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */
11#define NETLINK_SOCK_DIAG 4 /* socket monitoring */
12#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
13#define NETLINK_XFRM 6 /* ipsec */
14#define NETLINK_SELINUX 7 /* SELinux event notifications */
15#define NETLINK_ISCSI 8 /* Open-iSCSI */
16#define NETLINK_AUDIT 9 /* auditing */
17#define NETLINK_FIB_LOOKUP 10
18#define NETLINK_CONNECTOR 11
19#define NETLINK_NETFILTER 12 /* netfilter subsystem */
20#define NETLINK_IP6_FW 13
21#define NETLINK_DNRTMSG 14 /* DECnet routing messages */
22#define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
23#define NETLINK_GENERIC 16
24/* leave room for NETLINK_DM (DM Events) */
25#define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
26#define NETLINK_ECRYPTFS 19
27#define NETLINK_RDMA 20
28#define NETLINK_CRYPTO 21 /* Crypto layer */
29
30#define NETLINK_INET_DIAG NETLINK_SOCK_DIAG
31
32#define MAX_LINKS 32
33
34struct sockaddr_nl {
35 __kernel_sa_family_t nl_family; /* AF_NETLINK */
36 unsigned short nl_pad; /* zero */
37 __u32 nl_pid; /* port ID */
38 __u32 nl_groups; /* multicast groups mask */
39};
40
41struct nlmsghdr {
42 __u32 nlmsg_len; /* Length of message including header */
43 __u16 nlmsg_type; /* Message content */
44 __u16 nlmsg_flags; /* Additional flags */
45 __u32 nlmsg_seq; /* Sequence number */
46 __u32 nlmsg_pid; /* Sending process port ID */
47};
48
49/* Flags values */
50
51#define NLM_F_REQUEST 1 /* It is request message. */
52#define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */
53#define NLM_F_ACK 4 /* Reply with ack, with zero or error code */
54#define NLM_F_ECHO 8 /* Echo this request */
55#define NLM_F_DUMP_INTR 16 /* Dump was inconsistent due to sequence change */
56
57/* Modifiers to GET request */
58#define NLM_F_ROOT 0x100 /* specify tree root */
59#define NLM_F_MATCH 0x200 /* return all matching */
60#define NLM_F_ATOMIC 0x400 /* atomic GET */
61#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
62
63/* Modifiers to NEW request */
64#define NLM_F_REPLACE 0x100 /* Override existing */
65#define NLM_F_EXCL 0x200 /* Do not touch, if it exists */
66#define NLM_F_CREATE 0x400 /* Create, if it does not exist */
67#define NLM_F_APPEND 0x800 /* Add to end of list */
68
69/*
70 4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL
71 4.4BSD CHANGE NLM_F_REPLACE
72
73 True CHANGE NLM_F_CREATE|NLM_F_REPLACE
74 Append NLM_F_CREATE
75 Check NLM_F_EXCL
76 */
77
78#define NLMSG_ALIGNTO 4U
79#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
80#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
81#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN))
82#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
83#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
84#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
85 (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
86#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
87 (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
88 (nlh)->nlmsg_len <= (len))
89#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
90
91#define NLMSG_NOOP 0x1 /* Nothing. */
92#define NLMSG_ERROR 0x2 /* Error */
93#define NLMSG_DONE 0x3 /* End of a dump */
94#define NLMSG_OVERRUN 0x4 /* Data lost */
95
96#define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
97
98struct nlmsgerr {
99 int error;
100 struct nlmsghdr msg;
101};
102
103#define NETLINK_ADD_MEMBERSHIP 1
104#define NETLINK_DROP_MEMBERSHIP 2
105#define NETLINK_PKTINFO 3
106#define NETLINK_BROADCAST_ERROR 4
107#define NETLINK_NO_ENOBUFS 5
108
109struct nl_pktinfo {
110 __u32 group;
111};
112
113#define NET_MAJOR 36 /* Major 36 is reserved for networking */
114
115enum {
116 NETLINK_UNCONNECTED = 0,
117 NETLINK_CONNECTED,
118};
119
120/*
121 * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
122 * +---------------------+- - -+- - - - - - - - - -+- - -+
123 * | Header | Pad | Payload | Pad |
124 * | (struct nlattr) | ing | | ing |
125 * +---------------------+- - -+- - - - - - - - - -+- - -+
126 * <-------------- nlattr->nla_len -------------->
127 */
128
129struct nlattr {
130 __u16 nla_len;
131 __u16 nla_type;
132};
133
134/*
135 * nla_type (16 bits)
136 * +---+---+-------------------------------+
137 * | N | O | Attribute Type |
138 * +---+---+-------------------------------+
139 * N := Carries nested attributes
140 * O := Payload stored in network byte order
141 *
142 * Note: The N and O flag are mutually exclusive.
143 */
144#define NLA_F_NESTED (1 << 15)
145#define NLA_F_NET_BYTEORDER (1 << 14)
146#define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
147
148#define NLA_ALIGNTO 4
149#define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
150#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
151
152#ifdef __KERNEL__
153 4
154#include <linux/capability.h> 5#include <linux/capability.h>
155#include <linux/skbuff.h> 6#include <linux/skbuff.h>
156#include <linux/export.h> 7#include <linux/export.h>
157#include <net/scm.h> 8#include <net/scm.h>
9#include <uapi/linux/netlink.h>
158 10
159struct net; 11struct net;
160 12
@@ -283,6 +135,4 @@ static inline int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
283 return __netlink_dump_start(ssk, skb, nlh, control); 135 return __netlink_dump_start(ssk, skb, nlh, control);
284} 136}
285 137
286#endif /* __KERNEL__ */
287
288#endif /* __LINUX_NETLINK_H */ 138#endif /* __LINUX_NETLINK_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-22 09:45:44 -0500