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
|
/*
Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#ifndef _SOCKET_H
#define _SOCKET_H
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "event.h"
#include "rpc-transport.h"
#include "logging.h"
#include "dict.h"
#include "mem-pool.h"
#include "globals.h"
#ifndef MAX_IOVEC
#define MAX_IOVEC 16
#endif /* MAX_IOVEC */
#define GF_DEFAULT_SOCKET_LISTEN_PORT GF_DEFAULT_BASE_PORT
#define RPC_MAX_FRAGMENT_SIZE 0x7fffffff
/* This is the size set through setsockopt for
* both the TCP receive window size and the
* send buffer size.
* Till the time iobuf size becomes configurable, this size is set to include
* two iobufs + the GlusterFS protocol headers.
* Linux allows us to over-ride the max values for the system.
* Should we over-ride them? Because if we set a value larger than the default
* setsockopt will fail. Having larger values might be beneficial for
* IB links.
*/
#define GF_DEFAULT_SOCKET_WINDOW_SIZE (512 * GF_UNIT_KB)
#define GF_MAX_SOCKET_WINDOW_SIZE (1 * GF_UNIT_MB)
#define GF_MIN_SOCKET_WINDOW_SIZE (128 * GF_UNIT_KB)
#define GF_USE_DEFAULT_KEEPALIVE (-1)
typedef enum {
SP_STATE_NADA = 0,
SP_STATE_COMPLETE,
SP_STATE_READING_FRAGHDR,
SP_STATE_READ_FRAGHDR,
SP_STATE_READING_FRAG,
} sp_rpcrecord_state_t;
typedef enum {
SP_STATE_RPCFRAG_INIT,
SP_STATE_READING_MSGTYPE,
SP_STATE_READ_MSGTYPE,
} sp_rpcfrag_state_t;
typedef enum {
SP_STATE_SIMPLE_MSG_INIT,
SP_STATE_READING_SIMPLE_MSG,
} sp_rpcfrag_simple_msg_state_t;
typedef enum {
SP_STATE_VECTORED_REQUEST_INIT,
SP_STATE_READING_CREDBYTES,
SP_STATE_READ_CREDBYTES, /* read credential data. */
SP_STATE_READING_VERFBYTES,
SP_STATE_READ_VERFBYTES, /* read verifier data */
SP_STATE_READING_PROGHDR,
SP_STATE_READ_PROGHDR,
SP_STATE_READING_PROG,
} sp_rpcfrag_vectored_request_state_t;
typedef enum {
SP_STATE_REQUEST_HEADER_INIT,
SP_STATE_READING_RPCHDR1,
SP_STATE_READ_RPCHDR1, /* read msg from beginning till and
* including credlen
*/
} sp_rpcfrag_request_header_state_t;
struct ioq {
union {
struct list_head list;
struct {
struct ioq *next;
struct ioq *prev;
};
};
uint32_t fraghdr;
struct iovec vector[MAX_IOVEC];
int count;
struct iovec *pending_vector;
int pending_count;
struct iobref *iobref;
};
typedef struct {
sp_rpcfrag_request_header_state_t header_state;
sp_rpcfrag_vectored_request_state_t vector_state;
int vector_sizer_state;
} sp_rpcfrag_request_state_t;
typedef enum {
SP_STATE_VECTORED_REPLY_STATUS_INIT,
SP_STATE_READING_REPLY_STATUS,
SP_STATE_READ_REPLY_STATUS,
} sp_rpcfrag_vectored_reply_status_state_t;
typedef enum {
SP_STATE_ACCEPTED_SUCCESS_REPLY_INIT,
SP_STATE_READING_PROC_HEADER,
SP_STATE_READ_PROC_HEADER,
} sp_rpcfrag_vectored_reply_accepted_success_state_t;
typedef enum {
SP_STATE_ACCEPTED_REPLY_INIT,
SP_STATE_READING_REPLY_VERFLEN,
SP_STATE_READ_REPLY_VERFLEN,
SP_STATE_READING_REPLY_VERFBYTES,
SP_STATE_READ_REPLY_VERFBYTES,
} sp_rpcfrag_vectored_reply_accepted_state_t;
typedef struct {
uint32_t accept_status;
sp_rpcfrag_vectored_reply_status_state_t status_state;
sp_rpcfrag_vectored_reply_accepted_state_t accepted_state;
sp_rpcfrag_vectored_reply_accepted_success_state_t accepted_success_state;
} sp_rpcfrag_vectored_reply_state_t;
typedef struct {
int32_t sock;
int32_t idx;
unsigned char connected; // -1 = not connected. 0 = in progress. 1 = connected
char bio;
char connect_finish_log;
char submit_log;
union {
struct list_head ioq;
struct {
struct ioq *ioq_next;
struct ioq *ioq_prev;
};
};
struct {
sp_rpcrecord_state_t record_state;
struct {
char *fragcurrent;
uint32_t bytes_read;
uint32_t remaining_size;
struct iovec vector;
struct iovec *pending_vector;
union {
sp_rpcfrag_request_state_t request;
sp_rpcfrag_vectored_reply_state_t reply;
} call_body;
sp_rpcfrag_simple_msg_state_t simple_state;
sp_rpcfrag_state_t state;
} frag;
struct iobuf *iobuf;
size_t iobuf_size;
struct iovec vector[2];
int count;
struct iovec payload_vector;
struct iobref *iobref;
rpc_request_info_t *request_info;
struct iovec *pending_vector;
int pending_count;
uint32_t fraghdr;
char complete_record;
msg_type_t msg_type;
size_t total_bytes_read;
} incoming;
pthread_mutex_t lock;
int windowsize;
char lowlat;
char nodelay;
int keepalive;
int keepaliveidle;
int keepaliveintvl;
uint32_t backlog;
gf_boolean_t read_fail_log;
} socket_private_t;
#endif
|
