1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef _MSG_ASYNC_PROTOCOL_V2_
#define _MSG_ASYNC_PROTOCOL_V2_
#include "Protocol.h"
#include "crypto_onwire.h"
#include "frames_v2.h"
class ProtocolV2 : public Protocol {
private:
enum State {
NONE,
START_CONNECT,
BANNER_CONNECTING,
HELLO_CONNECTING,
AUTH_CONNECTING,
AUTH_CONNECTING_SIGN,
SESSION_CONNECTING,
SESSION_RECONNECTING,
START_ACCEPT,
BANNER_ACCEPTING,
HELLO_ACCEPTING,
AUTH_ACCEPTING,
AUTH_ACCEPTING_MORE,
AUTH_ACCEPTING_SIGN,
SESSION_ACCEPTING,
READY,
THROTTLE_MESSAGE,
THROTTLE_BYTES,
THROTTLE_DISPATCH_QUEUE,
THROTTLE_DONE,
READ_MESSAGE_COMPLETE,
STANDBY,
WAIT,
CLOSED
};
static const char *get_state_name(int state) {
const char *const statenames[] = {"NONE",
"START_CONNECT",
"BANNER_CONNECTING",
"HELLO_CONNECTING",
"AUTH_CONNECTING",
"AUTH_CONNECTING_SIGN",
"SESSION_CONNECTING",
"SESSION_RECONNECTING",
"START_ACCEPT",
"BANNER_ACCEPTING",
"HELLO_ACCEPTING",
"AUTH_ACCEPTING",
"AUTH_ACCEPTING_MORE",
"AUTH_ACCEPTING_SIGN",
"SESSION_ACCEPTING",
"READY",
"THROTTLE_MESSAGE",
"THROTTLE_BYTES",
"THROTTLE_DISPATCH_QUEUE",
"THROTTLE_DONE",
"READ_MESSAGE_COMPLETE",
"STANDBY",
"WAIT",
"CLOSED"};
return statenames[state];
}
// TODO: move into auth_meta?
ceph::crypto::onwire::rxtx_t session_stream_handlers;
entity_name_t peer_name;
State state;
uint64_t peer_supported_features; // CEPH_MSGR2_FEATURE_*
uint64_t client_cookie;
uint64_t server_cookie;
uint64_t global_seq;
uint64_t connect_seq;
uint64_t peer_global_seq;
uint64_t message_seq;
bool reconnecting;
bool replacing;
bool can_write;
struct out_queue_entry_t {
bool is_prepared {false};
Message* m {nullptr};
};
std::map<int, std::list<out_queue_entry_t>> out_queue;
std::list<Message *> sent;
std::atomic<uint64_t> out_seq{0};
std::atomic<uint64_t> in_seq{0};
std::atomic<uint64_t> ack_left{0};
using ProtFuncPtr = void (ProtocolV2::*)();
Ct<ProtocolV2> *bannerExchangeCallback;
ceph::msgr::v2::FrameAssembler tx_frame_asm;
ceph::msgr::v2::FrameAssembler rx_frame_asm;
ceph::bufferlist rx_preamble;
ceph::bufferlist rx_epilogue;
ceph::msgr::v2::segment_bls_t rx_segments_data;
ceph::msgr::v2::Tag next_tag;
utime_t backoff; // backoff time
utime_t recv_stamp;
utime_t throttle_stamp;
struct {
ceph::bufferlist rxbuf;
ceph::bufferlist txbuf;
bool enabled {true};
} pre_auth;
bool keepalive;
bool write_in_progress = false;
ostream &_conn_prefix(std::ostream *_dout);
void run_continuation(Ct<ProtocolV2> *pcontinuation);
void run_continuation(Ct<ProtocolV2> &continuation);
Ct<ProtocolV2> *read(CONTINUATION_RXBPTR_TYPE<ProtocolV2> &next,
rx_buffer_t&& buffer);
template <class F>
Ct<ProtocolV2> *write(const std::string &desc,
CONTINUATION_TYPE<ProtocolV2> &next,
F &frame);
Ct<ProtocolV2> *write(const std::string &desc,
CONTINUATION_TYPE<ProtocolV2> &next,
bufferlist &buffer);
template <class F>
bool append_frame(F& frame);
void requeue_sent();
uint64_t discard_requeued_up_to(uint64_t out_seq, uint64_t seq);
void reset_recv_state();
void reset_security();
void reset_throttle();
Ct<ProtocolV2> *_fault();
void discard_out_queue();
void reset_session();
void prepare_send_message(uint64_t features, Message *m);
out_queue_entry_t _get_next_outgoing();
ssize_t write_message(Message *m, bool more);
void handle_message_ack(uint64_t seq);
CONTINUATION_DECL(ProtocolV2, _wait_for_peer_banner);
READ_BPTR_HANDLER_CONTINUATION_DECL(ProtocolV2, _handle_peer_banner);
READ_BPTR_HANDLER_CONTINUATION_DECL(ProtocolV2, _handle_peer_banner_payload);
Ct<ProtocolV2> *_banner_exchange(Ct<ProtocolV2> &callback);
Ct<ProtocolV2> *_wait_for_peer_banner();
Ct<ProtocolV2> *_handle_peer_banner(rx_buffer_t &&buffer, int r);
Ct<ProtocolV2> *_handle_peer_banner_payload(rx_buffer_t &&buffer, int r);
Ct<ProtocolV2> *handle_hello(ceph::bufferlist &payload);
CONTINUATION_DECL(ProtocolV2, read_frame);
CONTINUATION_DECL(ProtocolV2, finish_auth);
READ_BPTR_HANDLER_CONTINUATION_DECL(ProtocolV2, handle_read_frame_preamble_main);
READ_BPTR_HANDLER_CONTINUATION_DECL(ProtocolV2, handle_read_frame_segment);
READ_BPTR_HANDLER_CONTINUATION_DECL(ProtocolV2, handle_read_frame_epilogue_main);
CONTINUATION_DECL(ProtocolV2, throttle_message);
CONTINUATION_DECL(ProtocolV2, throttle_bytes);
CONTINUATION_DECL(ProtocolV2, throttle_dispatch_queue);
Ct<ProtocolV2> *read_frame();
Ct<ProtocolV2> *finish_auth();
Ct<ProtocolV2> *finish_client_auth();
Ct<ProtocolV2> *handle_read_frame_preamble_main(rx_buffer_t &&buffer, int r);
Ct<ProtocolV2> *read_frame_segment();
Ct<ProtocolV2> *handle_read_frame_segment(rx_buffer_t &&rx_buffer, int r);
Ct<ProtocolV2> *_handle_read_frame_segment();
Ct<ProtocolV2> *handle_read_frame_epilogue_main(rx_buffer_t &&buffer, int r);
Ct<ProtocolV2> *_handle_read_frame_epilogue_main();
Ct<ProtocolV2> *handle_read_frame_dispatch();
Ct<ProtocolV2> *handle_frame_payload();
Ct<ProtocolV2> *ready();
Ct<ProtocolV2> *handle_message();
Ct<ProtocolV2> *throttle_message();
Ct<ProtocolV2> *throttle_bytes();
Ct<ProtocolV2> *throttle_dispatch_queue();
Ct<ProtocolV2> *read_message_data_prepare();
Ct<ProtocolV2> *handle_keepalive2(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_keepalive2_ack(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_message_ack(ceph::bufferlist &payload);
public:
uint64_t connection_features;
ProtocolV2(AsyncConnection *connection);
virtual ~ProtocolV2();
virtual void connect() override;
virtual void accept() override;
virtual bool is_connected() override;
virtual void stop() override;
virtual void fault() override;
virtual void send_message(Message *m) override;
virtual void send_keepalive() override;
virtual void read_event() override;
virtual void write_event() override;
virtual bool is_queued() override;
private:
// Client Protocol
CONTINUATION_DECL(ProtocolV2, start_client_banner_exchange);
CONTINUATION_DECL(ProtocolV2, post_client_banner_exchange);
Ct<ProtocolV2> *start_client_banner_exchange();
Ct<ProtocolV2> *post_client_banner_exchange();
inline Ct<ProtocolV2> *send_auth_request() {
std::vector<uint32_t> empty;
return send_auth_request(empty);
}
Ct<ProtocolV2> *send_auth_request(std::vector<uint32_t> &allowed_methods);
Ct<ProtocolV2> *handle_auth_bad_method(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_auth_reply_more(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_auth_done(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_auth_signature(ceph::bufferlist &payload);
Ct<ProtocolV2> *send_client_ident();
Ct<ProtocolV2> *send_reconnect();
Ct<ProtocolV2> *handle_ident_missing_features(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_session_reset(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_session_retry(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_session_retry_global(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_wait(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_reconnect_ok(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_server_ident(ceph::bufferlist &payload);
// Server Protocol
CONTINUATION_DECL(ProtocolV2, start_server_banner_exchange);
CONTINUATION_DECL(ProtocolV2, post_server_banner_exchange);
CONTINUATION_DECL(ProtocolV2, server_ready);
Ct<ProtocolV2> *start_server_banner_exchange();
Ct<ProtocolV2> *post_server_banner_exchange();
Ct<ProtocolV2> *handle_auth_request(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_auth_request_more(ceph::bufferlist &payload);
Ct<ProtocolV2> *_handle_auth_request(bufferlist& auth_payload, bool more);
Ct<ProtocolV2> *_auth_bad_method(int r);
Ct<ProtocolV2> *handle_client_ident(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_ident_missing_features_write(int r);
Ct<ProtocolV2> *handle_reconnect(ceph::bufferlist &payload);
Ct<ProtocolV2> *handle_existing_connection(AsyncConnectionRef existing);
Ct<ProtocolV2> *reuse_connection(AsyncConnectionRef existing,
ProtocolV2 *exproto);
Ct<ProtocolV2> *send_server_ident();
Ct<ProtocolV2> *send_reconnect_ok();
Ct<ProtocolV2> *server_ready();
size_t get_current_msg_size() const;
};
#endif /* _MSG_ASYNC_PROTOCOL_V2_ */
|
