Annotation of embedaddon/strongswan/src/include/linux/netlink.h, revision 1.1
1.1 ! misho 1: #ifndef _UAPI__LINUX_NETLINK_H
! 2: #define _UAPI__LINUX_NETLINK_H
! 3:
! 4: #include <linux/kernel.h>
! 5: #include <linux/socket.h> /* for __kernel_sa_family_t */
! 6: #include <linux/types.h>
! 7:
! 8: #define NETLINK_ROUTE 0 /* Routing/device hook */
! 9: #define NETLINK_UNUSED 1 /* Unused number */
! 10: #define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */
! 11: #define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */
! 12: #define NETLINK_SOCK_DIAG 4 /* socket monitoring */
! 13: #define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */
! 14: #define NETLINK_XFRM 6 /* ipsec */
! 15: #define NETLINK_SELINUX 7 /* SELinux event notifications */
! 16: #define NETLINK_ISCSI 8 /* Open-iSCSI */
! 17: #define NETLINK_AUDIT 9 /* auditing */
! 18: #define NETLINK_FIB_LOOKUP 10
! 19: #define NETLINK_CONNECTOR 11
! 20: #define NETLINK_NETFILTER 12 /* netfilter subsystem */
! 21: #define NETLINK_IP6_FW 13
! 22: #define NETLINK_DNRTMSG 14 /* DECnet routing messages */
! 23: #define NETLINK_KOBJECT_UEVENT 15 /* Kernel messages to userspace */
! 24: #define NETLINK_GENERIC 16
! 25: /* leave room for NETLINK_DM (DM Events) */
! 26: #define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
! 27: #define NETLINK_ECRYPTFS 19
! 28: #define NETLINK_RDMA 20
! 29: #define NETLINK_CRYPTO 21 /* Crypto layer */
! 30:
! 31: #define NETLINK_INET_DIAG NETLINK_SOCK_DIAG
! 32:
! 33: #define MAX_LINKS 32
! 34:
! 35: struct sockaddr_nl {
! 36: __kernel_sa_family_t nl_family; /* AF_NETLINK */
! 37: unsigned short nl_pad; /* zero */
! 38: __u32 nl_pid; /* port ID */
! 39: __u32 nl_groups; /* multicast groups mask */
! 40: };
! 41:
! 42: struct nlmsghdr {
! 43: __u32 nlmsg_len; /* Length of message including header */
! 44: __u16 nlmsg_type; /* Message content */
! 45: __u16 nlmsg_flags; /* Additional flags */
! 46: __u32 nlmsg_seq; /* Sequence number */
! 47: __u32 nlmsg_pid; /* Sending process port ID */
! 48: };
! 49:
! 50: /* Flags values */
! 51:
! 52: #define NLM_F_REQUEST 1 /* It is request message. */
! 53: #define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */
! 54: #define NLM_F_ACK 4 /* Reply with ack, with zero or error code */
! 55: #define NLM_F_ECHO 8 /* Echo this request */
! 56: #define NLM_F_DUMP_INTR 16 /* Dump was inconsistent due to sequence change */
! 57:
! 58: /* Modifiers to GET request */
! 59: #define NLM_F_ROOT 0x100 /* specify tree root */
! 60: #define NLM_F_MATCH 0x200 /* return all matching */
! 61: #define NLM_F_ATOMIC 0x400 /* atomic GET */
! 62: #define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH)
! 63:
! 64: /* Modifiers to NEW request */
! 65: #define NLM_F_REPLACE 0x100 /* Override existing */
! 66: #define NLM_F_EXCL 0x200 /* Do not touch, if it exists */
! 67: #define NLM_F_CREATE 0x400 /* Create, if it does not exist */
! 68: #define NLM_F_APPEND 0x800 /* Add to end of list */
! 69:
! 70: /*
! 71: 4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL
! 72: 4.4BSD CHANGE NLM_F_REPLACE
! 73:
! 74: True CHANGE NLM_F_CREATE|NLM_F_REPLACE
! 75: Append NLM_F_CREATE
! 76: Check NLM_F_EXCL
! 77: */
! 78:
! 79: #define NLMSG_ALIGNTO 4U
! 80: #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
! 81: #define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
! 82: #define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
! 83: #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
! 84: #define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
! 85: #define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
! 86: (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
! 87: #define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
! 88: (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
! 89: (nlh)->nlmsg_len <= (len))
! 90: #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
! 91:
! 92: #define NLMSG_NOOP 0x1 /* Nothing. */
! 93: #define NLMSG_ERROR 0x2 /* Error */
! 94: #define NLMSG_DONE 0x3 /* End of a dump */
! 95: #define NLMSG_OVERRUN 0x4 /* Data lost */
! 96:
! 97: #define NLMSG_MIN_TYPE 0x10 /* < 0x10: reserved control messages */
! 98:
! 99: struct nlmsgerr {
! 100: int error;
! 101: struct nlmsghdr msg;
! 102: };
! 103:
! 104: #define NETLINK_ADD_MEMBERSHIP 1
! 105: #define NETLINK_DROP_MEMBERSHIP 2
! 106: #define NETLINK_PKTINFO 3
! 107: #define NETLINK_BROADCAST_ERROR 4
! 108: #define NETLINK_NO_ENOBUFS 5
! 109: #define NETLINK_RX_RING 6
! 110: #define NETLINK_TX_RING 7
! 111: #define NETLINK_LISTEN_ALL_NSID 8
! 112: #define NETLINK_LIST_MEMBERSHIPS 9
! 113:
! 114: struct nl_pktinfo {
! 115: __u32 group;
! 116: };
! 117:
! 118: struct nl_mmap_req {
! 119: unsigned int nm_block_size;
! 120: unsigned int nm_block_nr;
! 121: unsigned int nm_frame_size;
! 122: unsigned int nm_frame_nr;
! 123: };
! 124:
! 125: struct nl_mmap_hdr {
! 126: unsigned int nm_status;
! 127: unsigned int nm_len;
! 128: __u32 nm_group;
! 129: /* credentials */
! 130: __u32 nm_pid;
! 131: __u32 nm_uid;
! 132: __u32 nm_gid;
! 133: };
! 134:
! 135: enum nl_mmap_status {
! 136: NL_MMAP_STATUS_UNUSED,
! 137: NL_MMAP_STATUS_RESERVED,
! 138: NL_MMAP_STATUS_VALID,
! 139: NL_MMAP_STATUS_COPY,
! 140: NL_MMAP_STATUS_SKIP,
! 141: };
! 142:
! 143: #define NL_MMAP_MSG_ALIGNMENT NLMSG_ALIGNTO
! 144: #define NL_MMAP_MSG_ALIGN(sz) __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
! 145: #define NL_MMAP_HDRLEN NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
! 146:
! 147: #define NET_MAJOR 36 /* Major 36 is reserved for networking */
! 148:
! 149: enum {
! 150: NETLINK_UNCONNECTED = 0,
! 151: NETLINK_CONNECTED,
! 152: };
! 153:
! 154: /*
! 155: * <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
! 156: * +---------------------+- - -+- - - - - - - - - -+- - -+
! 157: * | Header | Pad | Payload | Pad |
! 158: * | (struct nlattr) | ing | | ing |
! 159: * +---------------------+- - -+- - - - - - - - - -+- - -+
! 160: * <-------------- nlattr->nla_len -------------->
! 161: */
! 162:
! 163: struct nlattr {
! 164: __u16 nla_len;
! 165: __u16 nla_type;
! 166: };
! 167:
! 168: /*
! 169: * nla_type (16 bits)
! 170: * +---+---+-------------------------------+
! 171: * | N | O | Attribute Type |
! 172: * +---+---+-------------------------------+
! 173: * N := Carries nested attributes
! 174: * O := Payload stored in network byte order
! 175: *
! 176: * Note: The N and O flag are mutually exclusive.
! 177: */
! 178: #define NLA_F_NESTED (1 << 15)
! 179: #define NLA_F_NET_BYTEORDER (1 << 14)
! 180: #define NLA_TYPE_MASK ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
! 181:
! 182: #define NLA_ALIGNTO 4
! 183: #define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
! 184: #define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
! 185:
! 186:
! 187: #endif /* _UAPI__LINUX_NETLINK_H */
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