diff options
Diffstat (limited to 'include/uapi/linux/netlink.h')
| -rw-r--r-- | include/uapi/linux/netlink.h | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h index 855dffb4c1c3..e2ae82e3f9f7 100644 --- a/include/uapi/linux/netlink.h +++ b/include/uapi/linux/netlink.h @@ -20,7 +20,7 @@ #define NETLINK_CONNECTOR 11 #define NETLINK_NETFILTER 12 /* netfilter subsystem */ #define NETLINK_IP6_FW 13 -#define NETLINK_DNRTMSG 14 /* DECnet routing messages */ +#define NETLINK_DNRTMSG 14 /* DECnet routing messages (obsolete) */ #define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */ #define NETLINK_GENERIC 16 /* leave room for NETLINK_DM (DM Events) */ @@ -41,12 +41,20 @@ struct sockaddr_nl { __u32 nl_groups; /* multicast groups mask */ }; +/** + * struct nlmsghdr - fixed format metadata header of Netlink messages + * @nlmsg_len: Length of message including header + * @nlmsg_type: Message content type + * @nlmsg_flags: Additional flags + * @nlmsg_seq: Sequence number + * @nlmsg_pid: Sending process port ID + */ 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 port ID */ + __u32 nlmsg_len; + __u16 nlmsg_type; + __u16 nlmsg_flags; + __u32 nlmsg_seq; + __u32 nlmsg_pid; }; /* Flags values */ @@ -54,7 +62,7 @@ struct nlmsghdr { #define NLM_F_REQUEST 0x01 /* It is request message. */ #define NLM_F_MULTI 0x02 /* Multipart message, terminated by NLMSG_DONE */ #define NLM_F_ACK 0x04 /* Reply with ack, with zero or error code */ -#define NLM_F_ECHO 0x08 /* Echo this request */ +#define NLM_F_ECHO 0x08 /* Receive resulting notifications */ #define NLM_F_DUMP_INTR 0x10 /* Dump was inconsistent due to sequence change */ #define NLM_F_DUMP_FILTERED 0x20 /* Dump was filtered as requested */ @@ -132,6 +140,10 @@ struct nlmsgerr { * be used - in the success case - to identify a created * object or operation or similar (binary) * @NLMSGERR_ATTR_POLICY: policy for a rejected attribute + * @NLMSGERR_ATTR_MISS_TYPE: type of a missing required attribute, + * %NLMSGERR_ATTR_MISS_NEST will not be present if the attribute was + * missing at the message level + * @NLMSGERR_ATTR_MISS_NEST: offset of the nest where attribute was missing * @__NLMSGERR_ATTR_MAX: number of attributes * @NLMSGERR_ATTR_MAX: highest attribute number */ @@ -141,6 +153,8 @@ enum nlmsgerr_attrs { NLMSGERR_ATTR_OFFS, NLMSGERR_ATTR_COOKIE, NLMSGERR_ATTR_POLICY, + NLMSGERR_ATTR_MISS_TYPE, + NLMSGERR_ATTR_MISS_NEST, __NLMSGERR_ATTR_MAX, NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1 @@ -337,6 +351,9 @@ enum netlink_attribute_type { * bitfield32 type (U32) * @NL_POLICY_TYPE_ATTR_MASK: mask of valid bits for unsigned integers (U64) * @NL_POLICY_TYPE_ATTR_PAD: pad attribute for 64-bit alignment + * + * @__NL_POLICY_TYPE_ATTR_MAX: number of attributes + * @NL_POLICY_TYPE_ATTR_MAX: highest attribute number */ enum netlink_policy_type_attr { NL_POLICY_TYPE_ATTR_UNSPEC, |