Lines Matching +full:len +full:- +full:or +full:- +full:define
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 #define _UAPI__LINUX_NETLINK_H
9 #define NETLINK_ROUTE 0 /* Routing/device hook */
10 #define NETLINK_UNUSED 1 /* Unused number */
11 #define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
12 #define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */
13 #define NETLINK_SOCK_DIAG 4 /* socket monitoring */
14 #define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
15 #define NETLINK_XFRM 6 /* ipsec */
16 #define NETLINK_SELINUX 7 /* SELinux event notifications */
17 #define NETLINK_ISCSI 8 /* Open-iSCSI */
18 #define NETLINK_AUDIT 9 /* auditing */
19 #define NETLINK_FIB_LOOKUP 10
20 #define NETLINK_CONNECTOR 11
21 #define NETLINK_NETFILTER 12 /* netfilter subsystem */
22 #define NETLINK_IP6_FW 13
23 #define NETLINK_DNRTMSG 14 /* DECnet routing messages (obsolete) */
24 #define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
25 #define NETLINK_GENERIC 16
27 #define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
28 #define NETLINK_ECRYPTFS 19
29 #define NETLINK_RDMA 20
30 #define NETLINK_CRYPTO 21 /* Crypto layer */
31 #define NETLINK_SMC 22 /* SMC monitoring */
33 #define NETLINK_INET_DIAG NETLINK_SOCK_DIAG
35 #define MAX_LINKS 32
45 * struct nlmsghdr - fixed format metadata header of Netlink messages
62 #define NLM_F_REQUEST 0x01 /* It is request message. */
63 #define NLM_F_MULTI 0x02 /* Multipart message, terminated by NLMSG_DONE */
64 #define NLM_F_ACK 0x04 /* Reply with ack, with zero or error code */
65 #define NLM_F_ECHO 0x08 /* Receive resulting notifications */
66 #define NLM_F_DUMP_INTR 0x10 /* Dump was inconsistent due to sequence change */
67 #define NLM_F_DUMP_FILTERED 0x20 /* Dump was filtered as requested */
70 #define NLM_F_ROOT 0x100 /* specify tree root */
71 #define NLM_F_MATCH 0x200 /* return all matching */
72 #define NLM_F_ATOMIC 0x400 /* atomic GET */
73 #define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
76 #define NLM_F_REPLACE 0x100 /* Override existing */
77 #define NLM_F_EXCL 0x200 /* Do not touch, if it exists */
78 #define NLM_F_CREATE 0x400 /* Create, if it does not exist */
79 #define NLM_F_APPEND 0x800 /* Add to end of list */
82 #define NLM_F_NONREC 0x100 /* Do not delete recursively */
83 #define NLM_F_BULK 0x200 /* Delete multiple objects */
86 #define NLM_F_CAPPED 0x100 /* request was capped */
87 #define NLM_F_ACK_TLVS 0x200 /* extended ACK TVLs were included */
98 #define NLMSG_ALIGNTO 4U
99 #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) ) argument
100 #define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
101 #define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN) argument
102 #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len)) argument
103 #define NLMSG_DATA(nlh) ((void *)(((char *)nlh) + NLMSG_HDRLEN))
104 #define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \ argument
106 NLMSG_ALIGN((nlh)->nlmsg_len)))
107 #define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \ argument
108 (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
109 (nlh)->nlmsg_len <= (len))
110 #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len))) argument
112 #define NLMSG_NOOP 0x1 /* Nothing. */
113 #define NLMSG_ERROR 0x2 /* Error */
114 #define NLMSG_DONE 0x3 /* End of a dump */
115 #define NLMSG_OVERRUN 0x4 /* Data lost */
117 #define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
124 * or the ACK indicates success (error == 0)
134 * enum nlmsgerr_attrs - nlmsgerr attributes
140 * be used - in the success case - to identify a created
141 * object or operation or similar (binary)
160 NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1
163 #define NETLINK_ADD_MEMBERSHIP 1
164 #define NETLINK_DROP_MEMBERSHIP 2
165 #define NETLINK_PKTINFO 3
166 #define NETLINK_BROADCAST_ERROR 4
167 #define NETLINK_NO_ENOBUFS 5
169 #define NETLINK_RX_RING 6
170 #define NETLINK_TX_RING 7
172 #define NETLINK_LISTEN_ALL_NSID 8
173 #define NETLINK_LIST_MEMBERSHIPS 9
174 #define NETLINK_CAP_ACK 10
175 #define NETLINK_EXT_ACK 11
176 #define NETLINK_GET_STRICT_CHK 12
208 #define NL_MMAP_MSG_ALIGNMENT NLMSG_ALIGNTO
209 #define NL_MMAP_MSG_ALIGN(sz) __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
210 #define NL_MMAP_HDRLEN NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
213 #define NET_MAJOR 36 /* Major 36 is reserved for networking */
221 * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
222 * +---------------------+- - -+- - - - - - - - - -+- - -+
225 * +---------------------+- - -+- - - - - - - - - -+- - -+
226 * <-------------- nlattr->nla_len -------------->
236 * +---+---+-------------------------------+
238 * +---+---+-------------------------------+
244 #define NLA_F_NESTED (1 << 15)
245 #define NLA_F_NET_BYTEORDER (1 << 14)
246 #define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
248 #define NLA_ALIGNTO 4
249 #define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1)) argument
250 #define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
271 * policy descriptions - it's specific to each family how this is used
277 * enum netlink_attribute_type - type of an attribute
280 * @NL_ATTR_TYPE_U8: 8-bit unsigned attribute
281 * @NL_ATTR_TYPE_U16: 16-bit unsigned attribute
282 * @NL_ATTR_TYPE_U32: 32-bit unsigned attribute
283 * @NL_ATTR_TYPE_U64: 64-bit unsigned attribute
284 * @NL_ATTR_TYPE_S8: 8-bit signed attribute
285 * @NL_ATTR_TYPE_S16: 16-bit signed attribute
286 * @NL_ATTR_TYPE_S32: 32-bit signed attribute
287 * @NL_ATTR_TYPE_S64: 64-bit signed attribute
290 * @NL_ATTR_TYPE_NUL_STRING: NUL-terminated string,
293 * consists of sub-attributes. The nested policy and maxtype
296 * attribute contains sub-attributes whose type is irrelevant
301 * @NL_ATTR_TYPE_SINT: 32-bit or 64-bit signed attribute, aligned to 4B
302 * @NL_ATTR_TYPE_UINT: 32-bit or 64-bit unsigned attribute, aligned to 4B
333 * enum netlink_policy_type_attr - policy type attributes
358 * @NL_POLICY_TYPE_ATTR_PAD: pad attribute for 64-bit alignment
380 NL_POLICY_TYPE_ATTR_MAX = __NL_POLICY_TYPE_ATTR_MAX - 1