mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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bb6881f88c
Reformat with: clang-format version 19.1.0 (Fedora 19.1.0-1.fc41) https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2046
709 lines
24 KiB
C
709 lines
24 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2018 Red Hat, Inc.
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*/
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#ifndef __NM_NETLINK_H__
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#define __NM_NETLINK_H__
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#include <linux/genetlink.h>
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#include "libnm-std-aux/unaligned.h"
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/*****************************************************************************/
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#define NLMSGERR_ATTR_UNUSED 0
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#define NLMSGERR_ATTR_MSG 1
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#define NLMSGERR_ATTR_OFFS 2
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#define NLMSGERR_ATTR_COOKIE 3
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#define NLMSGERR_ATTR_MAX 3
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#ifndef NLM_F_ACK_TLVS
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#define NLM_F_ACK_TLVS 0x200
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#endif
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/*****************************************************************************/
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/* Basic attribute data types */
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enum {
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NLA_UNSPEC, /* Unspecified type, binary data chunk */
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NLA_U8, /* 8 bit integer */
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NLA_U16, /* 16 bit integer */
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NLA_S32, /* 32 bit integer */
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NLA_U32, /* 32 bit integer */
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NLA_U64, /* 64 bit integer */
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NLA_STRING, /* NUL terminated character string */
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NLA_FLAG, /* Flag */
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NLA_NESTED, /* Nested attributes */
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__NLA_TYPE_MAX,
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};
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#define NLA_TYPE_MAX (__NLA_TYPE_MAX - 1)
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struct nl_msg;
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/* This is similar to "struct nl_msg", in that it contains a
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* netlink message including additional information like the
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* src, creds, protocol.
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*
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* The difference is that "struct nl_msg" is an opaque type and
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* contains a copy of the message (requiring two heap allocations).
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* "struct nl_msg_lite" can be on the stack and it can directly
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* point to the receive buffer, without need to copy the message.
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* That can be useful, if you don't need to clone the message and
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* just need to pass it "down the stack" for somebody to parse
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* the message. */
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struct nl_msg_lite {
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int nm_protocol;
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const struct sockaddr_nl *nm_src;
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const struct sockaddr_nl *nm_dst;
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const struct ucred *nm_creds;
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const struct nlmsghdr *nm_nlh;
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uint32_t nm_size;
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};
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/*****************************************************************************/
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const char *nl_nlmsgtype2str(int type, char *buf, size_t size);
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const char *nl_nlmsg_flags2str(int flags, char *buf, size_t len);
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const char *nl_nlmsghdr_to_str(int netlink_protocol,
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guint32 pktinfo_group,
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const struct nlmsghdr *hdr,
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char *buf,
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gsize len);
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/*****************************************************************************/
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struct nla_policy {
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/* Type of attribute or NLA_UNSPEC */
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uint8_t type;
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/* Minimal length of payload required */
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uint8_t minlen;
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/* Maximal length of payload allowed */
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uint16_t maxlen;
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};
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/*****************************************************************************/
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/* static asserts that @tb and @policy are suitable arguments to nla_parse(). */
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#if _NM_CC_SUPPORT_GENERIC
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#define _nl_static_assert_tb(tb, policy) \
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G_STMT_START \
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{ \
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G_STATIC_ASSERT_EXPR(G_N_ELEMENTS(tb) > 0); \
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\
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/* We allow @policy to be either a C array or NULL. The sizeof()
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* must either match the expected array size or we check that
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* "policy" has typeof(NULL). This isn't a perfect compile time check,
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* but good enough. */ \
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G_STATIC_ASSERT_EXPR( \
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_Generic((policy), \
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typeof(NULL): 1, \
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default: (sizeof(policy) == G_N_ELEMENTS(tb) * sizeof(struct nla_policy)))); \
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} \
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G_STMT_END
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#else
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#define _nl_static_assert_tb(tb, policy) G_STATIC_ASSERT_EXPR(G_N_ELEMENTS(tb) > 0)
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#endif
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/*****************************************************************************/
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static inline int
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nla_attr_size(int payload)
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{
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nm_assert(payload >= 0);
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return NLA_HDRLEN + payload;
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}
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static inline int
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nla_total_size(int payload)
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{
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return NLA_ALIGN(nla_attr_size(payload));
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}
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static inline int
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nla_padlen(int payload)
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{
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return nla_total_size(payload) - nla_attr_size(payload);
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}
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struct nlattr *nla_reserve(struct nl_msg *msg, int attrtype, int attrlen);
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static inline uint16_t
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nla_len(const struct nlattr *nla)
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{
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nm_assert(nla);
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nm_assert(nla->nla_len >= NLA_HDRLEN);
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return nla->nla_len - ((uint16_t) NLA_HDRLEN);
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}
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static inline int
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nla_type(const struct nlattr *nla)
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{
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return nla->nla_type & NLA_TYPE_MASK;
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}
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static inline void *
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nla_data(const struct nlattr *nla)
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{
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return &(((char *) nla)[NLA_HDRLEN]);
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}
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#define nla_data_as(type, nla) \
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({ \
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const struct nlattr *_nla = (nla); \
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\
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nm_assert(nla_len(_nla) >= sizeof(type)); \
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\
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/* note that casting the pointer is undefined behavior in C, if
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* the data has wrong alignment. Netlink data is aligned to 4 bytes,
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* that means, if the alignment is larger than 4, this is invalid. */ \
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G_STATIC_ASSERT_EXPR(_nm_alignof(type) <= NLA_ALIGNTO); \
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\
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(type *) nla_data(_nla); \
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})
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static inline uint8_t
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nla_get_u8(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(uint8_t));
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return *((const uint8_t *) nla_data(nla));
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}
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static inline int8_t
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nla_get_s8(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(int8_t));
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return *((const int8_t *) nla_data(nla));
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}
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static inline uint8_t
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nla_get_u8_cond(/*const*/ struct nlattr *const *tb, int attr, uint8_t default_val)
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{
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nm_assert(tb);
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nm_assert(attr >= 0);
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return tb[attr] ? nla_get_u8(tb[attr]) : default_val;
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}
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static inline uint16_t
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nla_get_u16(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(uint16_t));
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return *((const uint16_t *) nla_data(nla));
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}
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static inline uint32_t
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nla_get_u32(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(uint32_t));
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return *((const uint32_t *) nla_data(nla));
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}
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static inline int32_t
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nla_get_s32(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(int32_t));
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return *((const int32_t *) nla_data(nla));
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}
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static inline uint64_t
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nla_get_u64(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(uint64_t));
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return unaligned_read_ne64(nla_data(nla));
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}
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static inline uint64_t
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nla_get_be64(const struct nlattr *nla)
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{
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nm_assert(nla_len(nla) >= sizeof(uint64_t));
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return unaligned_read_be64(nla_data(nla));
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}
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static inline char *
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nla_get_string(const struct nlattr *nla)
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{
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char *s;
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/* nla_get_string() requires that nla contains a NUL terminated string.
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* It cannot return NULL. Only use it with attributes that validate as NLA_STRING. */
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nm_assert(nla_len(nla) > 0);
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s = nla_data(nla);
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nm_assert(memchr(s, 0, nla_len(nla)));
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return s;
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}
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size_t
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_nla_strlcpy_full(char *dst, const struct nlattr *nla, size_t dstsize, gboolean wipe_remainder);
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static inline size_t
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nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize)
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{
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return _nla_strlcpy_full(dst, nla, dstsize, FALSE);
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}
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static inline size_t
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nla_strlcpy_wipe(char *dst, const struct nlattr *nla, size_t dstsize)
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{
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/* Behaves exactly like nla_strlcpy(), but (similar to strncpy()) it fills the
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* remaining @dstsize bytes with NUL. */
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return _nla_strlcpy_full(dst, nla, dstsize, TRUE);
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}
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size_t nla_memcpy(void *dst, const struct nlattr *nla, size_t dstsize);
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#define nla_memcpy_checked_size(dst, nla, dstsize) \
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G_STMT_START \
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{ \
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void *const _dst = (dst); \
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const struct nlattr *const _nla = (nla); \
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const size_t _dstsize = (dstsize); \
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size_t _srcsize; \
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\
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/* assert that, if @nla is given, that it has the exact expected
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* size. This implies that the caller previously verified the length
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* of the attribute (via minlen/maxlen at nla_parse()). */ \
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\
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if (_nla) { \
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_srcsize = nla_memcpy(_dst, _nla, _dstsize); \
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nm_assert(_srcsize == _dstsize); \
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} \
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} \
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G_STMT_END
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static inline struct in6_addr
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nla_get_in6_addr(const struct nlattr *nla)
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{
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struct in6_addr in6;
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nm_assert(nla_len(nla) >= sizeof(struct in6_addr));
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nla_memcpy(&in6, nla, sizeof(in6));
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return in6;
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}
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int nla_put(struct nl_msg *msg, int attrtype, int datalen, const void *data);
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static inline int
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nla_put_string(struct nl_msg *msg, int attrtype, const char *str)
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{
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nm_assert(str);
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return nla_put(msg, attrtype, strlen(str) + 1, str);
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}
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static inline int
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nla_put_uint8(struct nl_msg *msg, int attrtype, uint8_t val)
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{
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return nla_put(msg, attrtype, sizeof(val), &val);
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}
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static inline int
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nla_put_uint16(struct nl_msg *msg, int attrtype, uint16_t val)
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{
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return nla_put(msg, attrtype, sizeof(val), &val);
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}
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static inline int
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nla_put_uint32(struct nl_msg *msg, int attrtype, uint32_t val)
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{
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return nla_put(msg, attrtype, sizeof(val), &val);
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}
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#define NLA_PUT(msg, attrtype, attrlen, data) \
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G_STMT_START \
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{ \
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if (nla_put((msg), (attrtype), (attrlen), (data)) < 0) \
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goto nla_put_failure; \
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} \
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G_STMT_END
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#define NLA_PUT_TYPE(msg, type, attrtype, value) \
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G_STMT_START \
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{ \
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type const _nla_tmp = value; \
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\
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NLA_PUT((msg), (attrtype), sizeof(_nla_tmp), &_nla_tmp); \
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} \
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G_STMT_END
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#define NLA_PUT_U8(msg, attrtype, value) NLA_PUT_TYPE(msg, uint8_t, attrtype, value)
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#define NLA_PUT_S8(msg, attrtype, value) NLA_PUT_TYPE(msg, int8_t, attrtype, value)
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#define NLA_PUT_U16(msg, attrtype, value) NLA_PUT_TYPE(msg, uint16_t, attrtype, value)
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#define NLA_PUT_U32(msg, attrtype, value) NLA_PUT_TYPE(msg, uint32_t, attrtype, value)
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#define NLA_PUT_S32(msg, attrtype, value) NLA_PUT_TYPE(msg, int32_t, attrtype, value)
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#define NLA_PUT_U64(msg, attrtype, value) NLA_PUT_TYPE(msg, uint64_t, attrtype, value)
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#define NLA_PUT_STRING(msg, attrtype, value) NLA_PUT(msg, attrtype, (int) strlen(value) + 1, value)
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#define NLA_PUT_FLAG(msg, attrtype) NLA_PUT(msg, attrtype, 0, NULL)
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struct nlattr *nla_find(const struct nlattr *head, int len, int attrtype);
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static inline int
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nla_ok(const struct nlattr *nla, int remaining)
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{
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return remaining >= (int) sizeof(*nla) && nla->nla_len >= sizeof(*nla)
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&& nla->nla_len <= remaining;
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}
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static inline struct nlattr *
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nla_next(const struct nlattr *nla, int *remaining)
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{
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int totlen = NLA_ALIGN(nla->nla_len);
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*remaining -= totlen;
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return NM_CAST_ALIGN(struct nlattr, (((char *) nla) + totlen));
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}
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#define nla_for_each_attr(pos, head, len, rem) \
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for (pos = head, rem = len; nla_ok(pos, rem); pos = nla_next(pos, &(rem)))
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#define nla_for_each_nested(pos, nla, rem) \
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for (pos = (struct nlattr *) nla_data(nla), rem = nla_len(nla); nla_ok(pos, rem); \
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pos = nla_next(pos, &(rem)))
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void nla_nest_cancel(struct nl_msg *msg, const struct nlattr *attr);
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struct nlattr *nla_nest_start(struct nl_msg *msg, int attrtype);
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int nla_nest_end(struct nl_msg *msg, struct nlattr *start);
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#define NLA_NEST_END(msg, nest_start) \
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G_STMT_START \
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{ \
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if (nla_nest_end((msg), (nest_start)) < 0) \
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goto nla_put_failure; \
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} \
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G_STMT_END
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int nla_parse(struct nlattr *tb[],
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int maxtype,
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struct nlattr *head,
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int len,
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const struct nla_policy *policy);
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#define nla_parse_arr(tb, head, len, policy) \
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({ \
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_nl_static_assert_tb((tb), (policy)); \
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\
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nla_parse((tb), G_N_ELEMENTS(tb) - 1, (head), (len), (policy)); \
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})
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static inline int
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nla_parse_nested(struct nlattr *tb[],
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int maxtype,
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struct nlattr *nla,
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const struct nla_policy *policy)
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{
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return nla_parse(tb, maxtype, nla_data(nla), nla_len(nla), policy);
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}
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#define nla_parse_nested_arr(tb, nla, policy) \
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({ \
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_nl_static_assert_tb((tb), (policy)); \
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\
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nla_parse_nested((tb), G_N_ELEMENTS(tb) - 1, (nla), (policy)); \
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})
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/*****************************************************************************/
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struct nl_msg *nlmsg_alloc(size_t len);
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struct nl_msg *nlmsg_alloc_convert(struct nlmsghdr *hdr);
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struct nl_msg *nlmsg_alloc_new(size_t size, uint16_t nlmsgtype, uint16_t flags);
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void *nlmsg_reserve(struct nl_msg *n, uint32_t len, uint32_t pad);
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int nlmsg_append(struct nl_msg *n, const void *data, uint32_t len, uint32_t pad);
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#define nlmsg_append_struct(n, data) (nlmsg_append((n), (data), sizeof(*(data)), NLMSG_ALIGNTO))
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void nlmsg_free(struct nl_msg *msg);
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static inline int
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nlmsg_size(int payload)
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{
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nm_assert(payload >= 0 && payload < G_MAXINT - NLMSG_HDRLEN - 4);
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return NLMSG_HDRLEN + payload;
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}
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static inline int
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nlmsg_total_size(int payload)
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{
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return NLMSG_ALIGN(nlmsg_size(payload));
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}
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static inline int
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nlmsg_ok(const struct nlmsghdr *nlh, int remaining)
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{
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return (remaining >= (int) sizeof(struct nlmsghdr) && nlh->nlmsg_len >= sizeof(struct nlmsghdr)
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&& nlh->nlmsg_len <= remaining);
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}
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static inline struct nlmsghdr *
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nlmsg_next(struct nlmsghdr *nlh, int *remaining)
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{
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int totlen = NLMSG_ALIGN(nlh->nlmsg_len);
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*remaining -= totlen;
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return NM_CAST_ALIGN(struct nlmsghdr, (((char *) nlh) + totlen));
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}
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int nlmsg_get_proto(struct nl_msg *msg);
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void nlmsg_set_proto(struct nl_msg *msg, int protocol);
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void nlmsg_set_src(struct nl_msg *msg, struct sockaddr_nl *addr);
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struct ucred *nlmsg_get_creds(struct nl_msg *msg);
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void nlmsg_set_creds(struct nl_msg *msg, struct ucred *creds);
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NM_AUTO_DEFINE_FCN0(struct nl_msg *, _nm_auto_nl_msg_cleanup, nlmsg_free);
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#define nm_auto_nlmsg nm_auto(_nm_auto_nl_msg_cleanup)
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static inline const struct nlmsghdr *
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nlmsg_undata(const void *data)
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{
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/* from the data, get back the header. It's the inverse of nlmsg_data(). */
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return (void *) (((unsigned char *) data) - NLMSG_HDRLEN);
|
|
}
|
|
|
|
static inline void *
|
|
nlmsg_data(const struct nlmsghdr *nlh)
|
|
{
|
|
return ((unsigned char *) nlh) + NLMSG_HDRLEN;
|
|
}
|
|
|
|
static inline void *
|
|
nlmsg_tail(const struct nlmsghdr *nlh)
|
|
{
|
|
return ((unsigned char *) nlh) + NLMSG_ALIGN(nlh->nlmsg_len);
|
|
}
|
|
|
|
struct nlmsghdr *nlmsg_hdr(const struct nl_msg *n);
|
|
|
|
static inline int
|
|
nlmsg_valid_hdr(const struct nlmsghdr *nlh, int hdrlen)
|
|
{
|
|
if (nlh->nlmsg_len < nlmsg_size(hdrlen))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static inline int
|
|
nlmsg_datalen(const struct nlmsghdr *nlh)
|
|
{
|
|
return nlh->nlmsg_len - NLMSG_HDRLEN;
|
|
}
|
|
|
|
static inline int
|
|
nlmsg_attrlen(const struct nlmsghdr *nlh, int hdrlen)
|
|
{
|
|
return NM_MAX((int) (nlmsg_datalen(nlh) - NLMSG_ALIGN(hdrlen)), 0);
|
|
}
|
|
|
|
static inline struct nlattr *
|
|
nlmsg_attrdata(const struct nlmsghdr *nlh, int hdrlen)
|
|
{
|
|
char *data = nlmsg_data(nlh);
|
|
|
|
return NM_CAST_ALIGN(struct nlattr, (data + NLMSG_ALIGN(hdrlen)));
|
|
}
|
|
|
|
static inline struct nlattr *
|
|
nlmsg_find_attr(struct nlmsghdr *nlh, int hdrlen, int attrtype)
|
|
{
|
|
return nla_find(nlmsg_attrdata(nlh, hdrlen), nlmsg_attrlen(nlh, hdrlen), attrtype);
|
|
}
|
|
|
|
int nlmsg_parse_error(const struct nlmsghdr *nlh, const char **out_extack_msg);
|
|
|
|
int nlmsg_parse(const struct nlmsghdr *nlh,
|
|
int hdrlen,
|
|
struct nlattr *tb[],
|
|
int maxtype,
|
|
const struct nla_policy *policy);
|
|
|
|
#define nlmsg_parse_arr(nlh, hdrlen, tb, policy) \
|
|
({ \
|
|
_nl_static_assert_tb((tb), (policy)); \
|
|
G_STATIC_ASSERT_EXPR((hdrlen) >= 0); \
|
|
\
|
|
nlmsg_parse((nlh), (hdrlen), (tb), G_N_ELEMENTS(tb) - 1, (policy)); \
|
|
})
|
|
|
|
struct nlmsghdr *nlmsg_put(struct nl_msg *n,
|
|
uint32_t pid,
|
|
uint32_t seq,
|
|
uint16_t type,
|
|
uint32_t payload,
|
|
uint16_t flags);
|
|
|
|
/*****************************************************************************/
|
|
|
|
typedef enum {
|
|
NL_SOCKET_FLAGS_NONE = 0,
|
|
NL_SOCKET_FLAGS_NONBLOCK = 0x1,
|
|
NL_SOCKET_FLAGS_PASSCRED = 0x2,
|
|
NL_SOCKET_FLAGS_PKTINFO = 0x4,
|
|
NL_SOCKET_FLAGS_DISABLE_MSG_PEEK = 0x8,
|
|
|
|
_NL_SOCKET_FLAGS_ALL = (NL_SOCKET_FLAGS_DISABLE_MSG_PEEK << 1) - 1,
|
|
} NLSocketFlags;
|
|
|
|
#define NL_AUTO_PORT 0
|
|
#define NL_AUTO_SEQ 0
|
|
|
|
struct nl_sock;
|
|
|
|
int nl_socket_new(struct nl_sock **out_sk,
|
|
int protocol,
|
|
NLSocketFlags flags,
|
|
int bufsize_rx,
|
|
int bufsize_tx);
|
|
|
|
void nl_socket_free(struct nl_sock *sk);
|
|
|
|
NM_AUTO_DEFINE_FCN0(struct nl_sock *, _nm_auto_nlsock, nl_socket_free);
|
|
#define nm_auto_nlsock nm_auto(_nm_auto_nlsock)
|
|
|
|
int nl_socket_get_fd(const struct nl_sock *sk);
|
|
|
|
struct sockaddr_nl *nlmsg_get_dst(struct nl_msg *msg);
|
|
|
|
size_t nl_socket_get_msg_buf_size(struct nl_sock *sk);
|
|
int nl_socket_set_msg_buf_size(struct nl_sock *sk, size_t bufsize);
|
|
|
|
int nl_socket_set_buffer_size(struct nl_sock *sk, int rxbuf, int txbuf);
|
|
|
|
int nl_socket_set_passcred(struct nl_sock *sk, int state);
|
|
|
|
int nl_socket_set_pktinfo(struct nl_sock *sk, int state);
|
|
|
|
uint32_t nl_socket_get_local_port(const struct nl_sock *sk);
|
|
|
|
int nl_socket_add_memberships(struct nl_sock *sk, int group, ...);
|
|
|
|
int nl_connect(struct nl_sock *sk, int protocol);
|
|
|
|
int nl_recv(struct nl_sock *sk,
|
|
unsigned char *buf0,
|
|
size_t buf0_len,
|
|
struct sockaddr_nl *nla,
|
|
unsigned char **buf,
|
|
struct ucred *out_creds,
|
|
gboolean *out_creds_has,
|
|
uint32_t *out_pktinfo_group,
|
|
gboolean *out_pktinfo_has);
|
|
|
|
int nl_send(struct nl_sock *sk, struct nl_msg *msg);
|
|
|
|
int nl_send_auto(struct nl_sock *sk, struct nl_msg *msg);
|
|
|
|
/*****************************************************************************/
|
|
|
|
enum nl_cb_action {
|
|
/* Proceed with wathever would come next */
|
|
NL_OK,
|
|
/* Skip this message */
|
|
NL_SKIP,
|
|
/* Stop parsing altogether and discard remaining messages */
|
|
NL_STOP,
|
|
};
|
|
|
|
typedef int (*nl_recvmsg_msg_cb_t)(const struct nl_msg *msg, void *arg);
|
|
|
|
typedef int (*nl_recvmsg_err_cb_t)(const struct sockaddr_nl *nla,
|
|
const struct nlmsgerr *nlerr,
|
|
void *arg);
|
|
|
|
struct nl_cb {
|
|
nl_recvmsg_msg_cb_t valid_cb;
|
|
void *valid_arg;
|
|
|
|
nl_recvmsg_msg_cb_t finish_cb;
|
|
void *finish_arg;
|
|
|
|
nl_recvmsg_msg_cb_t ack_cb;
|
|
void *ack_arg;
|
|
|
|
nl_recvmsg_err_cb_t err_cb;
|
|
void *err_arg;
|
|
};
|
|
|
|
int nl_sendmsg(struct nl_sock *sk, struct nl_msg *msg, struct msghdr *hdr);
|
|
|
|
int nl_send_iovec(struct nl_sock *sk, struct nl_msg *msg, struct iovec *iov, unsigned iovlen);
|
|
|
|
void nl_complete_msg(struct nl_sock *sk, struct nl_msg *msg);
|
|
|
|
int nl_recvmsgs(struct nl_sock *sk, const struct nl_cb *cb);
|
|
|
|
int nl_wait_for_ack(struct nl_sock *sk, const struct nl_cb *cb);
|
|
|
|
/*****************************************************************************/
|
|
|
|
extern const struct nla_policy genl_ctrl_policy[8];
|
|
|
|
void *genlmsg_put(struct nl_msg *msg,
|
|
uint32_t port,
|
|
uint32_t seq,
|
|
uint16_t family,
|
|
uint32_t hdrlen,
|
|
uint16_t flags,
|
|
uint8_t cmd,
|
|
uint8_t version);
|
|
void *genlmsg_data(const struct genlmsghdr *gnlh);
|
|
void *genlmsg_user_hdr(const struct genlmsghdr *gnlh);
|
|
const struct genlmsghdr *genlmsg_hdr(const struct nlmsghdr *nlh);
|
|
void *genlmsg_user_data(const struct genlmsghdr *gnlh, const int hdrlen);
|
|
struct nlattr *genlmsg_attrdata(const struct genlmsghdr *gnlh, int hdrlen);
|
|
int genlmsg_len(const struct genlmsghdr *gnlh);
|
|
int genlmsg_attrlen(const struct genlmsghdr *gnlh, int hdrlen);
|
|
int genlmsg_valid_hdr(const struct nlmsghdr *nlh, int hdrlen);
|
|
|
|
int genlmsg_parse(const struct nlmsghdr *nlh,
|
|
int hdrlen,
|
|
struct nlattr *tb[],
|
|
int maxtype,
|
|
const struct nla_policy *policy);
|
|
|
|
#define genlmsg_parse_arr(nlh, hdrlen, tb, policy) \
|
|
({ \
|
|
_nl_static_assert_tb((tb), (policy)); \
|
|
G_STATIC_ASSERT_EXPR((hdrlen) >= 0); \
|
|
\
|
|
genlmsg_parse((nlh), (hdrlen), (tb), G_N_ELEMENTS(tb) - 1, (policy)); \
|
|
})
|
|
|
|
int genl_ctrl_resolve(struct nl_sock *sk, const char *name);
|
|
|
|
/*****************************************************************************/
|
|
|
|
#endif /* __NM_NETLINK_H__ */
|