mirror of
https://github.com/openfaas/faasd.git
synced 2025-06-21 00:06:37 +00:00
d49011702b
The use of containerd and CNI functions has been refactored to reuse the same codebase. Added all network functionality to own directory and package. Removed netlink and weave library in favor of using CNI plugin result files. Rename containers handler to functions to clear-up functionality. Signed-off-by: Carlos de Paula <me@carlosedp.com>
218 lines
4.6 KiB
Go
218 lines
4.6 KiB
Go
package nl
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import "unsafe"
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// Track the message sizes for the correct serialization/deserialization
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const (
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SizeofNfgenmsg = 4
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SizeofNfattr = 4
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SizeofNfConntrack = 376
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SizeofNfctTupleHead = 52
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)
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var L4ProtoMap = map[uint8]string{
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6: "tcp",
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17: "udp",
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}
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// All the following constants are coming from:
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// https://github.com/torvalds/linux/blob/master/include/uapi/linux/netfilter/nfnetlink_conntrack.h
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// enum cntl_msg_types {
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// IPCTNL_MSG_CT_NEW,
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// IPCTNL_MSG_CT_GET,
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// IPCTNL_MSG_CT_DELETE,
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// IPCTNL_MSG_CT_GET_CTRZERO,
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// IPCTNL_MSG_CT_GET_STATS_CPU,
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// IPCTNL_MSG_CT_GET_STATS,
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// IPCTNL_MSG_CT_GET_DYING,
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// IPCTNL_MSG_CT_GET_UNCONFIRMED,
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//
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// IPCTNL_MSG_MAX
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// };
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const (
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IPCTNL_MSG_CT_GET = 1
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IPCTNL_MSG_CT_DELETE = 2
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)
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// #define NFNETLINK_V0 0
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const (
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NFNETLINK_V0 = 0
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)
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// #define NLA_F_NESTED (1 << 15)
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const (
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NLA_F_NESTED = (1 << 15)
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)
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// enum ctattr_type {
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// CTA_UNSPEC,
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// CTA_TUPLE_ORIG,
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// CTA_TUPLE_REPLY,
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// CTA_STATUS,
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// CTA_PROTOINFO,
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// CTA_HELP,
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// CTA_NAT_SRC,
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// #define CTA_NAT CTA_NAT_SRC /* backwards compatibility */
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// CTA_TIMEOUT,
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// CTA_MARK,
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// CTA_COUNTERS_ORIG,
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// CTA_COUNTERS_REPLY,
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// CTA_USE,
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// CTA_ID,
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// CTA_NAT_DST,
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// CTA_TUPLE_MASTER,
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// CTA_SEQ_ADJ_ORIG,
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// CTA_NAT_SEQ_ADJ_ORIG = CTA_SEQ_ADJ_ORIG,
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// CTA_SEQ_ADJ_REPLY,
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// CTA_NAT_SEQ_ADJ_REPLY = CTA_SEQ_ADJ_REPLY,
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// CTA_SECMARK, /* obsolete */
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// CTA_ZONE,
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// CTA_SECCTX,
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// CTA_TIMESTAMP,
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// CTA_MARK_MASK,
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// CTA_LABELS,
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// CTA_LABELS_MASK,
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// __CTA_MAX
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// };
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const (
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CTA_TUPLE_ORIG = 1
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CTA_TUPLE_REPLY = 2
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CTA_STATUS = 3
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CTA_PROTOINFO = 4
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CTA_TIMEOUT = 7
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CTA_MARK = 8
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CTA_COUNTERS_ORIG = 9
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CTA_COUNTERS_REPLY = 10
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CTA_USE = 11
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CTA_ID = 12
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CTA_TIMESTAMP = 20
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)
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// enum ctattr_tuple {
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// CTA_TUPLE_UNSPEC,
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// CTA_TUPLE_IP,
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// CTA_TUPLE_PROTO,
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// CTA_TUPLE_ZONE,
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// __CTA_TUPLE_MAX
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// };
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// #define CTA_TUPLE_MAX (__CTA_TUPLE_MAX - 1)
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const (
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CTA_TUPLE_IP = 1
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CTA_TUPLE_PROTO = 2
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)
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// enum ctattr_ip {
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// CTA_IP_UNSPEC,
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// CTA_IP_V4_SRC,
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// CTA_IP_V4_DST,
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// CTA_IP_V6_SRC,
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// CTA_IP_V6_DST,
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// __CTA_IP_MAX
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// };
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// #define CTA_IP_MAX (__CTA_IP_MAX - 1)
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const (
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CTA_IP_V4_SRC = 1
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CTA_IP_V4_DST = 2
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CTA_IP_V6_SRC = 3
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CTA_IP_V6_DST = 4
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)
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// enum ctattr_l4proto {
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// CTA_PROTO_UNSPEC,
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// CTA_PROTO_NUM,
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// CTA_PROTO_SRC_PORT,
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// CTA_PROTO_DST_PORT,
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// CTA_PROTO_ICMP_ID,
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// CTA_PROTO_ICMP_TYPE,
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// CTA_PROTO_ICMP_CODE,
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// CTA_PROTO_ICMPV6_ID,
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// CTA_PROTO_ICMPV6_TYPE,
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// CTA_PROTO_ICMPV6_CODE,
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// __CTA_PROTO_MAX
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// };
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// #define CTA_PROTO_MAX (__CTA_PROTO_MAX - 1)
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const (
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CTA_PROTO_NUM = 1
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CTA_PROTO_SRC_PORT = 2
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CTA_PROTO_DST_PORT = 3
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)
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// enum ctattr_protoinfo {
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// CTA_PROTOINFO_UNSPEC,
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// CTA_PROTOINFO_TCP,
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// CTA_PROTOINFO_DCCP,
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// CTA_PROTOINFO_SCTP,
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// __CTA_PROTOINFO_MAX
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// };
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// #define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
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const (
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CTA_PROTOINFO_TCP = 1
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)
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// enum ctattr_protoinfo_tcp {
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// CTA_PROTOINFO_TCP_UNSPEC,
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// CTA_PROTOINFO_TCP_STATE,
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// CTA_PROTOINFO_TCP_WSCALE_ORIGINAL,
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// CTA_PROTOINFO_TCP_WSCALE_REPLY,
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// CTA_PROTOINFO_TCP_FLAGS_ORIGINAL,
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// CTA_PROTOINFO_TCP_FLAGS_REPLY,
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// __CTA_PROTOINFO_TCP_MAX
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// };
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// #define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
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const (
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CTA_PROTOINFO_TCP_STATE = 1
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CTA_PROTOINFO_TCP_WSCALE_ORIGINAL = 2
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CTA_PROTOINFO_TCP_WSCALE_REPLY = 3
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CTA_PROTOINFO_TCP_FLAGS_ORIGINAL = 4
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CTA_PROTOINFO_TCP_FLAGS_REPLY = 5
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)
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// enum ctattr_counters {
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// CTA_COUNTERS_UNSPEC,
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// CTA_COUNTERS_PACKETS, /* 64bit counters */
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// CTA_COUNTERS_BYTES, /* 64bit counters */
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// CTA_COUNTERS32_PACKETS, /* old 32bit counters, unused */
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// CTA_COUNTERS32_BYTES, /* old 32bit counters, unused */
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// CTA_COUNTERS_PAD,
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// __CTA_COUNTERS_M
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// };
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// #define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)
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const (
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CTA_COUNTERS_PACKETS = 1
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CTA_COUNTERS_BYTES = 2
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)
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// enum CTA TIMESTAMP TLVs
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// CTA_TIMESTAMP_START /* 64bit value */
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// CTA_TIMESTAMP_STOP /* 64bit value */
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const (
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CTA_TIMESTAMP_START = 1
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CTA_TIMESTAMP_STOP = 2
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)
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// /* General form of address family dependent message.
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// */
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// struct nfgenmsg {
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// __u8 nfgen_family; /* AF_xxx */
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// __u8 version; /* nfnetlink version */
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// __be16 res_id; /* resource id */
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// };
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type Nfgenmsg struct {
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NfgenFamily uint8
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Version uint8
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ResId uint16 // big endian
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}
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func (msg *Nfgenmsg) Len() int {
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return SizeofNfgenmsg
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}
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func DeserializeNfgenmsg(b []byte) *Nfgenmsg {
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return (*Nfgenmsg)(unsafe.Pointer(&b[0:SizeofNfgenmsg][0]))
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}
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func (msg *Nfgenmsg) Serialize() []byte {
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return (*(*[SizeofNfgenmsg]byte)(unsafe.Pointer(msg)))[:]
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}
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