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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/netlink.h

Version: ~ [ linux-6.12-rc7 ] ~ [ linux-6.11.7 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.60 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.116 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.171 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.229 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.285 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.323 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.12 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /include/uapi/linux/netlink.h (Version linux-6.12-rc7) and /include/uapi/linux/netlink.h (Version linux-5.16.20)


  1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2 #ifndef _UAPI__LINUX_NETLINK_H                      2 #ifndef _UAPI__LINUX_NETLINK_H
  3 #define _UAPI__LINUX_NETLINK_H                      3 #define _UAPI__LINUX_NETLINK_H
  4                                                     4 
  5 #include <linux/const.h>                            5 #include <linux/const.h>
  6 #include <linux/socket.h> /* for __kernel_sa_f      6 #include <linux/socket.h> /* for __kernel_sa_family_t */
  7 #include <linux/types.h>                            7 #include <linux/types.h>
  8                                                     8 
  9 #define NETLINK_ROUTE           0       /* Rou      9 #define NETLINK_ROUTE           0       /* Routing/device hook                          */
 10 #define NETLINK_UNUSED          1       /* Unu     10 #define NETLINK_UNUSED          1       /* Unused number                                */
 11 #define NETLINK_USERSOCK        2       /* Res     11 #define NETLINK_USERSOCK        2       /* Reserved for user mode socket protocols      */
 12 #define NETLINK_FIREWALL        3       /* Unu     12 #define NETLINK_FIREWALL        3       /* Unused number, formerly ip_queue             */
 13 #define NETLINK_SOCK_DIAG       4       /* soc     13 #define NETLINK_SOCK_DIAG       4       /* socket monitoring                            */
 14 #define NETLINK_NFLOG           5       /* net     14 #define NETLINK_NFLOG           5       /* netfilter/iptables ULOG */
 15 #define NETLINK_XFRM            6       /* ips     15 #define NETLINK_XFRM            6       /* ipsec */
 16 #define NETLINK_SELINUX         7       /* SEL     16 #define NETLINK_SELINUX         7       /* SELinux event notifications */
 17 #define NETLINK_ISCSI           8       /* Ope     17 #define NETLINK_ISCSI           8       /* Open-iSCSI */
 18 #define NETLINK_AUDIT           9       /* aud     18 #define NETLINK_AUDIT           9       /* auditing */
 19 #define NETLINK_FIB_LOOKUP      10                 19 #define NETLINK_FIB_LOOKUP      10      
 20 #define NETLINK_CONNECTOR       11                 20 #define NETLINK_CONNECTOR       11
 21 #define NETLINK_NETFILTER       12      /* net     21 #define NETLINK_NETFILTER       12      /* netfilter subsystem */
 22 #define NETLINK_IP6_FW          13                 22 #define NETLINK_IP6_FW          13
 23 #define NETLINK_DNRTMSG         14      /* DEC !!  23 #define NETLINK_DNRTMSG         14      /* DECnet routing messages */
 24 #define NETLINK_KOBJECT_UEVENT  15      /* Ker     24 #define NETLINK_KOBJECT_UEVENT  15      /* Kernel messages to userspace */
 25 #define NETLINK_GENERIC         16                 25 #define NETLINK_GENERIC         16
 26 /* leave room for NETLINK_DM (DM Events) */        26 /* leave room for NETLINK_DM (DM Events) */
 27 #define NETLINK_SCSITRANSPORT   18      /* SCS     27 #define NETLINK_SCSITRANSPORT   18      /* SCSI Transports */
 28 #define NETLINK_ECRYPTFS        19                 28 #define NETLINK_ECRYPTFS        19
 29 #define NETLINK_RDMA            20                 29 #define NETLINK_RDMA            20
 30 #define NETLINK_CRYPTO          21      /* Cry     30 #define NETLINK_CRYPTO          21      /* Crypto layer */
 31 #define NETLINK_SMC             22      /* SMC     31 #define NETLINK_SMC             22      /* SMC monitoring */
 32                                                    32 
 33 #define NETLINK_INET_DIAG       NETLINK_SOCK_D     33 #define NETLINK_INET_DIAG       NETLINK_SOCK_DIAG
 34                                                    34 
 35 #define MAX_LINKS 32                               35 #define MAX_LINKS 32            
 36                                                    36 
 37 struct sockaddr_nl {                               37 struct sockaddr_nl {
 38         __kernel_sa_family_t    nl_family;         38         __kernel_sa_family_t    nl_family;      /* AF_NETLINK   */
 39         unsigned short  nl_pad;         /* zer     39         unsigned short  nl_pad;         /* zero         */
 40         __u32           nl_pid;         /* por     40         __u32           nl_pid;         /* port ID      */
 41         __u32           nl_groups;      /* mul     41         __u32           nl_groups;      /* multicast groups mask */
 42 };                                                 42 };
 43                                                    43 
 44 /**                                            << 
 45  * struct nlmsghdr - fixed format metadata hea << 
 46  * @nlmsg_len:   Length of message including h << 
 47  * @nlmsg_type:  Message content type          << 
 48  * @nlmsg_flags: Additional flags              << 
 49  * @nlmsg_seq:   Sequence number               << 
 50  * @nlmsg_pid:   Sending process port ID       << 
 51  */                                            << 
 52 struct nlmsghdr {                                  44 struct nlmsghdr {
 53         __u32           nlmsg_len;             !!  45         __u32           nlmsg_len;      /* Length of message including header */
 54         __u16           nlmsg_type;            !!  46         __u16           nlmsg_type;     /* Message content */
 55         __u16           nlmsg_flags;           !!  47         __u16           nlmsg_flags;    /* Additional flags */
 56         __u32           nlmsg_seq;             !!  48         __u32           nlmsg_seq;      /* Sequence number */
 57         __u32           nlmsg_pid;             !!  49         __u32           nlmsg_pid;      /* Sending process port ID */
 58 };                                                 50 };
 59                                                    51 
 60 /* Flags values */                                 52 /* Flags values */
 61                                                    53 
 62 #define NLM_F_REQUEST           0x01    /* It      54 #define NLM_F_REQUEST           0x01    /* It is request message.       */
 63 #define NLM_F_MULTI             0x02    /* Mul     55 #define NLM_F_MULTI             0x02    /* Multipart message, terminated by NLMSG_DONE */
 64 #define NLM_F_ACK               0x04    /* Rep     56 #define NLM_F_ACK               0x04    /* Reply with ack, with zero or error code */
 65 #define NLM_F_ECHO              0x08    /* Rec !!  57 #define NLM_F_ECHO              0x08    /* Echo this request            */
 66 #define NLM_F_DUMP_INTR         0x10    /* Dum     58 #define NLM_F_DUMP_INTR         0x10    /* Dump was inconsistent due to sequence change */
 67 #define NLM_F_DUMP_FILTERED     0x20    /* Dum     59 #define NLM_F_DUMP_FILTERED     0x20    /* Dump was filtered as requested */
 68                                                    60 
 69 /* Modifiers to GET request */                     61 /* Modifiers to GET request */
 70 #define NLM_F_ROOT      0x100   /* specify tre     62 #define NLM_F_ROOT      0x100   /* specify tree root    */
 71 #define NLM_F_MATCH     0x200   /* return all      63 #define NLM_F_MATCH     0x200   /* return all matching  */
 72 #define NLM_F_ATOMIC    0x400   /* atomic GET      64 #define NLM_F_ATOMIC    0x400   /* atomic GET           */
 73 #define NLM_F_DUMP      (NLM_F_ROOT|NLM_F_MATC     65 #define NLM_F_DUMP      (NLM_F_ROOT|NLM_F_MATCH)
 74                                                    66 
 75 /* Modifiers to NEW request */                     67 /* Modifiers to NEW request */
 76 #define NLM_F_REPLACE   0x100   /* Override ex     68 #define NLM_F_REPLACE   0x100   /* Override existing            */
 77 #define NLM_F_EXCL      0x200   /* Do not touc     69 #define NLM_F_EXCL      0x200   /* Do not touch, if it exists   */
 78 #define NLM_F_CREATE    0x400   /* Create, if      70 #define NLM_F_CREATE    0x400   /* Create, if it does not exist */
 79 #define NLM_F_APPEND    0x800   /* Add to end      71 #define NLM_F_APPEND    0x800   /* Add to end of list           */
 80                                                    72 
 81 /* Modifiers to DELETE request */                  73 /* Modifiers to DELETE request */
 82 #define NLM_F_NONREC    0x100   /* Do not dele     74 #define NLM_F_NONREC    0x100   /* Do not delete recursively    */
 83 #define NLM_F_BULK      0x200   /* Delete mult << 
 84                                                    75 
 85 /* Flags for ACK message */                        76 /* Flags for ACK message */
 86 #define NLM_F_CAPPED    0x100   /* request was     77 #define NLM_F_CAPPED    0x100   /* request was capped */
 87 #define NLM_F_ACK_TLVS  0x200   /* extended AC     78 #define NLM_F_ACK_TLVS  0x200   /* extended ACK TVLs were included */
 88                                                    79 
 89 /*                                                 80 /*
 90    4.4BSD ADD           NLM_F_CREATE|NLM_F_EXC     81    4.4BSD ADD           NLM_F_CREATE|NLM_F_EXCL
 91    4.4BSD CHANGE        NLM_F_REPLACE              82    4.4BSD CHANGE        NLM_F_REPLACE
 92                                                    83 
 93    True CHANGE          NLM_F_CREATE|NLM_F_REP     84    True CHANGE          NLM_F_CREATE|NLM_F_REPLACE
 94    Append               NLM_F_CREATE               85    Append               NLM_F_CREATE
 95    Check                NLM_F_EXCL                 86    Check                NLM_F_EXCL
 96  */                                                87  */
 97                                                    88 
 98 #define NLMSG_ALIGNTO   4U                         89 #define NLMSG_ALIGNTO   4U
 99 #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNT     90 #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
100 #define NLMSG_HDRLEN     ((int) NLMSG_ALIGN(si     91 #define NLMSG_HDRLEN     ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
101 #define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLE     92 #define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
102 #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LEN     93 #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
103 #define NLMSG_DATA(nlh)  ((void *)(((char *)nl     94 #define NLMSG_DATA(nlh)  ((void *)(((char *)nlh) + NLMSG_HDRLEN))
104 #define NLMSG_NEXT(nlh,len)      ((len) -= NLM     95 #define NLMSG_NEXT(nlh,len)      ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
105                                   (struct nlms     96                                   (struct nlmsghdr *)(((char *)(nlh)) + \
106                                   NLMSG_ALIGN(     97                                   NLMSG_ALIGN((nlh)->nlmsg_len)))
107 #define NLMSG_OK(nlh,len) ((len) >= (int)sizeo     98 #define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
108                            (nlh)->nlmsg_len >=     99                            (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
109                            (nlh)->nlmsg_len <=    100                            (nlh)->nlmsg_len <= (len))
110 #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_l    101 #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
111                                                   102 
112 #define NLMSG_NOOP              0x1     /* Not    103 #define NLMSG_NOOP              0x1     /* Nothing.             */
113 #define NLMSG_ERROR             0x2     /* Err    104 #define NLMSG_ERROR             0x2     /* Error                */
114 #define NLMSG_DONE              0x3     /* End    105 #define NLMSG_DONE              0x3     /* End of a dump        */
115 #define NLMSG_OVERRUN           0x4     /* Dat    106 #define NLMSG_OVERRUN           0x4     /* Data lost            */
116                                                   107 
117 #define NLMSG_MIN_TYPE          0x10    /* < 0    108 #define NLMSG_MIN_TYPE          0x10    /* < 0x10: reserved control messages */
118                                                   109 
119 struct nlmsgerr {                                 110 struct nlmsgerr {
120         int             error;                    111         int             error;
121         struct nlmsghdr msg;                      112         struct nlmsghdr msg;
122         /*                                        113         /*
123          * followed by the message contents un    114          * followed by the message contents unless NETLINK_CAP_ACK was set
124          * or the ACK indicates success (error    115          * or the ACK indicates success (error == 0)
125          * message length is aligned with NLMS    116          * message length is aligned with NLMSG_ALIGN()
126          */                                       117          */
127         /*                                        118         /*
128          * followed by TLVs defined in enum nl    119          * followed by TLVs defined in enum nlmsgerr_attrs
129          * if NETLINK_EXT_ACK was set             120          * if NETLINK_EXT_ACK was set
130          */                                       121          */
131 };                                                122 };
132                                                   123 
133 /**                                               124 /**
134  * enum nlmsgerr_attrs - nlmsgerr attributes      125  * enum nlmsgerr_attrs - nlmsgerr attributes
135  * @NLMSGERR_ATTR_UNUSED: unused                  126  * @NLMSGERR_ATTR_UNUSED: unused
136  * @NLMSGERR_ATTR_MSG: error message string (s    127  * @NLMSGERR_ATTR_MSG: error message string (string)
137  * @NLMSGERR_ATTR_OFFS: offset of the invalid     128  * @NLMSGERR_ATTR_OFFS: offset of the invalid attribute in the original
138  *       message, counting from the beginning     129  *       message, counting from the beginning of the header (u32)
139  * @NLMSGERR_ATTR_COOKIE: arbitrary subsystem     130  * @NLMSGERR_ATTR_COOKIE: arbitrary subsystem specific cookie to
140  *      be used - in the success case - to ide    131  *      be used - in the success case - to identify a created
141  *      object or operation or similar (binary    132  *      object or operation or similar (binary)
142  * @NLMSGERR_ATTR_POLICY: policy for a rejecte    133  * @NLMSGERR_ATTR_POLICY: policy for a rejected attribute
143  * @NLMSGERR_ATTR_MISS_TYPE: type of a missing << 
144  *      %NLMSGERR_ATTR_MISS_NEST will not be p << 
145  *      missing at the message level           << 
146  * @NLMSGERR_ATTR_MISS_NEST: offset of the nes << 
147  * @__NLMSGERR_ATTR_MAX: number of attributes     134  * @__NLMSGERR_ATTR_MAX: number of attributes
148  * @NLMSGERR_ATTR_MAX: highest attribute numbe    135  * @NLMSGERR_ATTR_MAX: highest attribute number
149  */                                               136  */
150 enum nlmsgerr_attrs {                             137 enum nlmsgerr_attrs {
151         NLMSGERR_ATTR_UNUSED,                     138         NLMSGERR_ATTR_UNUSED,
152         NLMSGERR_ATTR_MSG,                        139         NLMSGERR_ATTR_MSG,
153         NLMSGERR_ATTR_OFFS,                       140         NLMSGERR_ATTR_OFFS,
154         NLMSGERR_ATTR_COOKIE,                     141         NLMSGERR_ATTR_COOKIE,
155         NLMSGERR_ATTR_POLICY,                     142         NLMSGERR_ATTR_POLICY,
156         NLMSGERR_ATTR_MISS_TYPE,               << 
157         NLMSGERR_ATTR_MISS_NEST,               << 
158                                                   143 
159         __NLMSGERR_ATTR_MAX,                      144         __NLMSGERR_ATTR_MAX,
160         NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MA    145         NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1
161 };                                                146 };
162                                                   147 
163 #define NETLINK_ADD_MEMBERSHIP          1         148 #define NETLINK_ADD_MEMBERSHIP          1
164 #define NETLINK_DROP_MEMBERSHIP         2         149 #define NETLINK_DROP_MEMBERSHIP         2
165 #define NETLINK_PKTINFO                 3         150 #define NETLINK_PKTINFO                 3
166 #define NETLINK_BROADCAST_ERROR         4         151 #define NETLINK_BROADCAST_ERROR         4
167 #define NETLINK_NO_ENOBUFS              5         152 #define NETLINK_NO_ENOBUFS              5
168 #ifndef __KERNEL__                                153 #ifndef __KERNEL__
169 #define NETLINK_RX_RING                 6         154 #define NETLINK_RX_RING                 6
170 #define NETLINK_TX_RING                 7         155 #define NETLINK_TX_RING                 7
171 #endif                                            156 #endif
172 #define NETLINK_LISTEN_ALL_NSID         8         157 #define NETLINK_LISTEN_ALL_NSID         8
173 #define NETLINK_LIST_MEMBERSHIPS        9         158 #define NETLINK_LIST_MEMBERSHIPS        9
174 #define NETLINK_CAP_ACK                 10        159 #define NETLINK_CAP_ACK                 10
175 #define NETLINK_EXT_ACK                 11        160 #define NETLINK_EXT_ACK                 11
176 #define NETLINK_GET_STRICT_CHK          12        161 #define NETLINK_GET_STRICT_CHK          12
177                                                   162 
178 struct nl_pktinfo {                               163 struct nl_pktinfo {
179         __u32   group;                            164         __u32   group;
180 };                                                165 };
181                                                   166 
182 struct nl_mmap_req {                              167 struct nl_mmap_req {
183         unsigned int    nm_block_size;            168         unsigned int    nm_block_size;
184         unsigned int    nm_block_nr;              169         unsigned int    nm_block_nr;
185         unsigned int    nm_frame_size;            170         unsigned int    nm_frame_size;
186         unsigned int    nm_frame_nr;              171         unsigned int    nm_frame_nr;
187 };                                                172 };
188                                                   173 
189 struct nl_mmap_hdr {                              174 struct nl_mmap_hdr {
190         unsigned int    nm_status;                175         unsigned int    nm_status;
191         unsigned int    nm_len;                   176         unsigned int    nm_len;
192         __u32           nm_group;                 177         __u32           nm_group;
193         /* credentials */                         178         /* credentials */
194         __u32           nm_pid;                   179         __u32           nm_pid;
195         __u32           nm_uid;                   180         __u32           nm_uid;
196         __u32           nm_gid;                   181         __u32           nm_gid;
197 };                                                182 };
198                                                   183 
199 #ifndef __KERNEL__                                184 #ifndef __KERNEL__
200 enum nl_mmap_status {                             185 enum nl_mmap_status {
201         NL_MMAP_STATUS_UNUSED,                    186         NL_MMAP_STATUS_UNUSED,
202         NL_MMAP_STATUS_RESERVED,                  187         NL_MMAP_STATUS_RESERVED,
203         NL_MMAP_STATUS_VALID,                     188         NL_MMAP_STATUS_VALID,
204         NL_MMAP_STATUS_COPY,                      189         NL_MMAP_STATUS_COPY,
205         NL_MMAP_STATUS_SKIP,                      190         NL_MMAP_STATUS_SKIP,
206 };                                                191 };
207                                                   192 
208 #define NL_MMAP_MSG_ALIGNMENT           NLMSG_    193 #define NL_MMAP_MSG_ALIGNMENT           NLMSG_ALIGNTO
209 #define NL_MMAP_MSG_ALIGN(sz)           __ALIG    194 #define NL_MMAP_MSG_ALIGN(sz)           __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
210 #define NL_MMAP_HDRLEN                  NL_MMA    195 #define NL_MMAP_HDRLEN                  NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
211 #endif                                            196 #endif
212                                                   197 
213 #define NET_MAJOR 36            /* Major 36 is    198 #define NET_MAJOR 36            /* Major 36 is reserved for networking                                          */
214                                                   199 
215 enum {                                            200 enum {
216         NETLINK_UNCONNECTED = 0,                  201         NETLINK_UNCONNECTED = 0,
217         NETLINK_CONNECTED,                        202         NETLINK_CONNECTED,
218 };                                                203 };
219                                                   204 
220 /*                                                205 /*
221  *  <------- NLA_HDRLEN ------> <-- NLA_ALIGN(    206  *  <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
222  * +---------------------+- - -+- - - - - - -     207  * +---------------------+- - -+- - - - - - - - - -+- - -+
223  * |        Header       | Pad |     Payload      208  * |        Header       | Pad |     Payload       | Pad |
224  * |   (struct nlattr)   | ing |                  209  * |   (struct nlattr)   | ing |                   | ing |
225  * +---------------------+- - -+- - - - - - -     210  * +---------------------+- - -+- - - - - - - - - -+- - -+
226  *  <-------------- nlattr->nla_len ----------    211  *  <-------------- nlattr->nla_len -------------->
227  */                                               212  */
228                                                   213 
229 struct nlattr {                                   214 struct nlattr {
230         __u16           nla_len;                  215         __u16           nla_len;
231         __u16           nla_type;                 216         __u16           nla_type;
232 };                                                217 };
233                                                   218 
234 /*                                                219 /*
235  * nla_type (16 bits)                             220  * nla_type (16 bits)
236  * +---+---+-------------------------------+      221  * +---+---+-------------------------------+
237  * | N | O | Attribute Type                |      222  * | N | O | Attribute Type                |
238  * +---+---+-------------------------------+      223  * +---+---+-------------------------------+
239  * N := Carries nested attributes                 224  * N := Carries nested attributes
240  * O := Payload stored in network byte order      225  * O := Payload stored in network byte order
241  *                                                226  *
242  * Note: The N and O flag are mutually exclusi    227  * Note: The N and O flag are mutually exclusive.
243  */                                               228  */
244 #define NLA_F_NESTED            (1 << 15)         229 #define NLA_F_NESTED            (1 << 15)
245 #define NLA_F_NET_BYTEORDER     (1 << 14)         230 #define NLA_F_NET_BYTEORDER     (1 << 14)
246 #define NLA_TYPE_MASK           ~(NLA_F_NESTED    231 #define NLA_TYPE_MASK           ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
247                                                   232 
248 #define NLA_ALIGNTO             4                 233 #define NLA_ALIGNTO             4
249 #define NLA_ALIGN(len)          (((len) + NLA_    234 #define NLA_ALIGN(len)          (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
250 #define NLA_HDRLEN              ((int) NLA_ALI    235 #define NLA_HDRLEN              ((int) NLA_ALIGN(sizeof(struct nlattr)))
251                                                   236 
252 /* Generic 32 bitflags attribute content sent     237 /* Generic 32 bitflags attribute content sent to the kernel.
253  *                                                238  *
254  * The value is a bitmap that defines the valu    239  * The value is a bitmap that defines the values being set
255  * The selector is a bitmask that defines whic    240  * The selector is a bitmask that defines which value is legit
256  *                                                241  *
257  * Examples:                                      242  * Examples:
258  *  value = 0x0, and selector = 0x1               243  *  value = 0x0, and selector = 0x1
259  *  implies we are selecting bit 1 and we want    244  *  implies we are selecting bit 1 and we want to set its value to 0.
260  *                                                245  *
261  *  value = 0x2, and selector = 0x2               246  *  value = 0x2, and selector = 0x2
262  *  implies we are selecting bit 2 and we want    247  *  implies we are selecting bit 2 and we want to set its value to 1.
263  *                                                248  *
264  */                                               249  */
265 struct nla_bitfield32 {                           250 struct nla_bitfield32 {
266         __u32 value;                              251         __u32 value;
267         __u32 selector;                           252         __u32 selector;
268 };                                                253 };
269                                                   254 
270 /*                                                255 /*
271  * policy descriptions - it's specific to each    256  * policy descriptions - it's specific to each family how this is used
272  * Normally, it should be retrieved via a dump    257  * Normally, it should be retrieved via a dump inside another attribute
273  * specifying where it applies.                   258  * specifying where it applies.
274  */                                               259  */
275                                                   260 
276 /**                                               261 /**
277  * enum netlink_attribute_type - type of an at    262  * enum netlink_attribute_type - type of an attribute
278  * @NL_ATTR_TYPE_INVALID: unused                  263  * @NL_ATTR_TYPE_INVALID: unused
279  * @NL_ATTR_TYPE_FLAG: flag attribute (present    264  * @NL_ATTR_TYPE_FLAG: flag attribute (present/not present)
280  * @NL_ATTR_TYPE_U8: 8-bit unsigned attribute     265  * @NL_ATTR_TYPE_U8: 8-bit unsigned attribute
281  * @NL_ATTR_TYPE_U16: 16-bit unsigned attribut    266  * @NL_ATTR_TYPE_U16: 16-bit unsigned attribute
282  * @NL_ATTR_TYPE_U32: 32-bit unsigned attribut    267  * @NL_ATTR_TYPE_U32: 32-bit unsigned attribute
283  * @NL_ATTR_TYPE_U64: 64-bit unsigned attribut    268  * @NL_ATTR_TYPE_U64: 64-bit unsigned attribute
284  * @NL_ATTR_TYPE_S8: 8-bit signed attribute       269  * @NL_ATTR_TYPE_S8: 8-bit signed attribute
285  * @NL_ATTR_TYPE_S16: 16-bit signed attribute     270  * @NL_ATTR_TYPE_S16: 16-bit signed attribute
286  * @NL_ATTR_TYPE_S32: 32-bit signed attribute     271  * @NL_ATTR_TYPE_S32: 32-bit signed attribute
287  * @NL_ATTR_TYPE_S64: 64-bit signed attribute     272  * @NL_ATTR_TYPE_S64: 64-bit signed attribute
288  * @NL_ATTR_TYPE_BINARY: binary data, min/max     273  * @NL_ATTR_TYPE_BINARY: binary data, min/max length may be specified
289  * @NL_ATTR_TYPE_STRING: string, min/max lengt    274  * @NL_ATTR_TYPE_STRING: string, min/max length may be specified
290  * @NL_ATTR_TYPE_NUL_STRING: NUL-terminated st    275  * @NL_ATTR_TYPE_NUL_STRING: NUL-terminated string,
291  *      min/max length may be specified           276  *      min/max length may be specified
292  * @NL_ATTR_TYPE_NESTED: nested, i.e. the cont    277  * @NL_ATTR_TYPE_NESTED: nested, i.e. the content of this attribute
293  *      consists of sub-attributes. The nested    278  *      consists of sub-attributes. The nested policy and maxtype
294  *      inside may be specified.                  279  *      inside may be specified.
295  * @NL_ATTR_TYPE_NESTED_ARRAY: nested array, i    280  * @NL_ATTR_TYPE_NESTED_ARRAY: nested array, i.e. the content of this
296  *      attribute contains sub-attributes whos    281  *      attribute contains sub-attributes whose type is irrelevant
297  *      (just used to separate the array entri    282  *      (just used to separate the array entries) and each such array
298  *      entry has attributes again, the policy    283  *      entry has attributes again, the policy for those inner ones
299  *      and the corresponding maxtype may be s    284  *      and the corresponding maxtype may be specified.
300  * @NL_ATTR_TYPE_BITFIELD32: &struct nla_bitfi    285  * @NL_ATTR_TYPE_BITFIELD32: &struct nla_bitfield32 attribute
301  * @NL_ATTR_TYPE_SINT: 32-bit or 64-bit signed << 
302  * @NL_ATTR_TYPE_UINT: 32-bit or 64-bit unsign << 
303  */                                               286  */
304 enum netlink_attribute_type {                     287 enum netlink_attribute_type {
305         NL_ATTR_TYPE_INVALID,                     288         NL_ATTR_TYPE_INVALID,
306                                                   289 
307         NL_ATTR_TYPE_FLAG,                        290         NL_ATTR_TYPE_FLAG,
308                                                   291 
309         NL_ATTR_TYPE_U8,                          292         NL_ATTR_TYPE_U8,
310         NL_ATTR_TYPE_U16,                         293         NL_ATTR_TYPE_U16,
311         NL_ATTR_TYPE_U32,                         294         NL_ATTR_TYPE_U32,
312         NL_ATTR_TYPE_U64,                         295         NL_ATTR_TYPE_U64,
313                                                   296 
314         NL_ATTR_TYPE_S8,                          297         NL_ATTR_TYPE_S8,
315         NL_ATTR_TYPE_S16,                         298         NL_ATTR_TYPE_S16,
316         NL_ATTR_TYPE_S32,                         299         NL_ATTR_TYPE_S32,
317         NL_ATTR_TYPE_S64,                         300         NL_ATTR_TYPE_S64,
318                                                   301 
319         NL_ATTR_TYPE_BINARY,                      302         NL_ATTR_TYPE_BINARY,
320         NL_ATTR_TYPE_STRING,                      303         NL_ATTR_TYPE_STRING,
321         NL_ATTR_TYPE_NUL_STRING,                  304         NL_ATTR_TYPE_NUL_STRING,
322                                                   305 
323         NL_ATTR_TYPE_NESTED,                      306         NL_ATTR_TYPE_NESTED,
324         NL_ATTR_TYPE_NESTED_ARRAY,                307         NL_ATTR_TYPE_NESTED_ARRAY,
325                                                   308 
326         NL_ATTR_TYPE_BITFIELD32,                  309         NL_ATTR_TYPE_BITFIELD32,
327                                                << 
328         NL_ATTR_TYPE_SINT,                     << 
329         NL_ATTR_TYPE_UINT,                     << 
330 };                                                310 };
331                                                   311 
332 /**                                               312 /**
333  * enum netlink_policy_type_attr - policy type    313  * enum netlink_policy_type_attr - policy type attributes
334  * @NL_POLICY_TYPE_ATTR_UNSPEC: unused            314  * @NL_POLICY_TYPE_ATTR_UNSPEC: unused
335  * @NL_POLICY_TYPE_ATTR_TYPE: type of the attr    315  * @NL_POLICY_TYPE_ATTR_TYPE: type of the attribute,
336  *      &enum netlink_attribute_type (U32)        316  *      &enum netlink_attribute_type (U32)
337  * @NL_POLICY_TYPE_ATTR_MIN_VALUE_S: minimum v    317  * @NL_POLICY_TYPE_ATTR_MIN_VALUE_S: minimum value for signed
338  *      integers (S64)                            318  *      integers (S64)
339  * @NL_POLICY_TYPE_ATTR_MAX_VALUE_S: maximum v    319  * @NL_POLICY_TYPE_ATTR_MAX_VALUE_S: maximum value for signed
340  *      integers (S64)                            320  *      integers (S64)
341  * @NL_POLICY_TYPE_ATTR_MIN_VALUE_U: minimum v    321  * @NL_POLICY_TYPE_ATTR_MIN_VALUE_U: minimum value for unsigned
342  *      integers (U64)                            322  *      integers (U64)
343  * @NL_POLICY_TYPE_ATTR_MAX_VALUE_U: maximum v    323  * @NL_POLICY_TYPE_ATTR_MAX_VALUE_U: maximum value for unsigned
344  *      integers (U64)                            324  *      integers (U64)
345  * @NL_POLICY_TYPE_ATTR_MIN_LENGTH: minimum le    325  * @NL_POLICY_TYPE_ATTR_MIN_LENGTH: minimum length for binary
346  *      attributes, no minimum if not given (U    326  *      attributes, no minimum if not given (U32)
347  * @NL_POLICY_TYPE_ATTR_MAX_LENGTH: maximum le    327  * @NL_POLICY_TYPE_ATTR_MAX_LENGTH: maximum length for binary
348  *      attributes, no maximum if not given (U    328  *      attributes, no maximum if not given (U32)
349  * @NL_POLICY_TYPE_ATTR_POLICY_IDX: sub policy    329  * @NL_POLICY_TYPE_ATTR_POLICY_IDX: sub policy for nested and
350  *      nested array types (U32)                  330  *      nested array types (U32)
351  * @NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE: maximu    331  * @NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE: maximum sub policy
352  *      attribute for nested and nested array     332  *      attribute for nested and nested array types, this can
353  *      in theory be < the size of the policy     333  *      in theory be < the size of the policy pointed to by
354  *      the index, if limited inside the nesti    334  *      the index, if limited inside the nesting (U32)
355  * @NL_POLICY_TYPE_ATTR_BITFIELD32_MASK: valid    335  * @NL_POLICY_TYPE_ATTR_BITFIELD32_MASK: valid mask for the
356  *      bitfield32 type (U32)                     336  *      bitfield32 type (U32)
357  * @NL_POLICY_TYPE_ATTR_MASK: mask of valid bi    337  * @NL_POLICY_TYPE_ATTR_MASK: mask of valid bits for unsigned integers (U64)
358  * @NL_POLICY_TYPE_ATTR_PAD: pad attribute for    338  * @NL_POLICY_TYPE_ATTR_PAD: pad attribute for 64-bit alignment
359  *                                             << 
360  * @__NL_POLICY_TYPE_ATTR_MAX: number of attri << 
361  * @NL_POLICY_TYPE_ATTR_MAX: highest attribute << 
362  */                                               339  */
363 enum netlink_policy_type_attr {                   340 enum netlink_policy_type_attr {
364         NL_POLICY_TYPE_ATTR_UNSPEC,               341         NL_POLICY_TYPE_ATTR_UNSPEC,
365         NL_POLICY_TYPE_ATTR_TYPE,                 342         NL_POLICY_TYPE_ATTR_TYPE,
366         NL_POLICY_TYPE_ATTR_MIN_VALUE_S,          343         NL_POLICY_TYPE_ATTR_MIN_VALUE_S,
367         NL_POLICY_TYPE_ATTR_MAX_VALUE_S,          344         NL_POLICY_TYPE_ATTR_MAX_VALUE_S,
368         NL_POLICY_TYPE_ATTR_MIN_VALUE_U,          345         NL_POLICY_TYPE_ATTR_MIN_VALUE_U,
369         NL_POLICY_TYPE_ATTR_MAX_VALUE_U,          346         NL_POLICY_TYPE_ATTR_MAX_VALUE_U,
370         NL_POLICY_TYPE_ATTR_MIN_LENGTH,           347         NL_POLICY_TYPE_ATTR_MIN_LENGTH,
371         NL_POLICY_TYPE_ATTR_MAX_LENGTH,           348         NL_POLICY_TYPE_ATTR_MAX_LENGTH,
372         NL_POLICY_TYPE_ATTR_POLICY_IDX,           349         NL_POLICY_TYPE_ATTR_POLICY_IDX,
373         NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE,       350         NL_POLICY_TYPE_ATTR_POLICY_MAXTYPE,
374         NL_POLICY_TYPE_ATTR_BITFIELD32_MASK,      351         NL_POLICY_TYPE_ATTR_BITFIELD32_MASK,
375         NL_POLICY_TYPE_ATTR_PAD,                  352         NL_POLICY_TYPE_ATTR_PAD,
376         NL_POLICY_TYPE_ATTR_MASK,                 353         NL_POLICY_TYPE_ATTR_MASK,
377                                                   354 
378         /* keep last */                           355         /* keep last */
379         __NL_POLICY_TYPE_ATTR_MAX,                356         __NL_POLICY_TYPE_ATTR_MAX,
380         NL_POLICY_TYPE_ATTR_MAX = __NL_POLICY_    357         NL_POLICY_TYPE_ATTR_MAX = __NL_POLICY_TYPE_ATTR_MAX - 1
381 };                                                358 };
382                                                   359 
383 #endif /* _UAPI__LINUX_NETLINK_H */               360 #endif /* _UAPI__LINUX_NETLINK_H */
384                                                   361 

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