vendor: Move virtcontainers to project's root directory

Lets have a global vendor base on virtcontainers.

Signed-off-by: Julio Montes <julio.montes@intel.com>
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>

vendor/github.com/clearcontainers/proxy/api/doc.go

@@ -0,0 +1,84 @@
+// Copyright (c) 2017 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package api defines the API cc-proxy exposes to clients (processes
+// connecting to the proxy AF_UNIX socket).
+//
+// This package contains the low level definitions of the protocol, frame
+// structure and the various payloads that can be sent and received.
+//
+// The proxy protocol is composed of commands, responses and notifications.
+// They all share the same frame structure: a header followed by an optional
+// payload.
+//
+// • Commands are always initiated by a client, never by the proxy itself.
+//
+// • Responses are sent by the proxy to acknowledge commands.
+//
+// • Notifications are sent by either the proxy or clients and do not generate
+// responses.
+//
+// Frame Structure
+//
+// The frame format is illustrated below:
+//
+//                      1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
+//  0 1 2 3 4 5 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+//  ┌───────────────────────────┬───────────────┬───────────────┐
+//  │          Version          │ Header Length │   Reserved    │
+//  ├───────────────────────────┼─────┬─┬───────┼───────────────┤
+//  │          Reserved         │ Res.│E│ Type  │    Opcode     │
+//  ├───────────────────────────┴─────┴─┴───────┴───────────────┤
+//  │                      Payload Length                       │
+//  ├───────────────────────────────────────────────────────────┤
+//  │                                                           │
+//  │                         Payload                           │
+//  │                                                           │
+//  │      (variable length, optional and opcode-specific)      │
+//  │                                                           │
+//  └───────────────────────────────────────────────────────────┘
+//
+// All header fields are encoded in network order (big endian).
+//
+// • Version (16 bits) is the proxy protocol version. See api.Version for
+// details about what information it encodes.
+//
+// • Header Length (8 bits) is the length of the header in number of 32-bit
+// words.  Header Length is greater or equal to 3 (12 bytes).
+//
+// • Type (4 bits) is the frame type: command (0x0), response (0x1),
+// stream (0x2) or notification (0x3).
+//
+// • Opcode (8 bits) specifies the kind of command, response, stream or
+// notification this frame represents. In conjunction with Type, this field
+// will dictate the payload content.
+//
+// • E, Error. This flag is set when a response returns an error. Currently
+// Error can ony be set in response frames.
+//
+// • Payload Length (32 bits) is in bytes.
+//
+// • Payload is optional data that can be sent with the various frames.
+// Commands, responses and notifications usually encode their payloads in JSON
+// while stream frames have raw data payloads.
+//
+// • Reserved fields are reserved for future use and must be zeroed.
+//
+// Frame Size and Header Length
+//
+// The full size of a frame is (Header Length + Payload Length). The Payload
+// starts at offset Header Length from the start of the frame.
+//
+// It is guaranteed that future header sizes will be at least 12 bytes.
+package api