1 #ifndef FIO_SERVER_H
2 #define FIO_SERVER_H
3
4 #include <inttypes.h>
5 #include <string.h>
6 #include <sys/time.h>
7 #include <netinet/in.h>
8
9 #include "stat.h"
10 #include "os/os.h"
11 #include "diskutil.h"
12
13 #define FIO_NET_PORT 8765
14
15 /*
16 * On-wire encoding is little endian
17 */
18 struct fio_net_cmd {
19 uint16_t version; /* protocol version */
20 uint16_t opcode; /* command opcode */
21 uint32_t flags; /* modifier flags */
22 uint64_t tag; /* passed back on reply */
23 uint32_t pdu_len; /* length of post-cmd layload */
24 /*
25 * These must be immediately before the payload, anything before
26 * these fields are checksummed.
27 */
28 uint16_t cmd_crc16; /* cmd checksum */
29 uint16_t pdu_crc16; /* payload checksum */
30 uint8_t payload[]; /* payload */
31 };
32
33 struct fio_net_cmd_reply {
34 struct flist_head list;
35 struct timeval tv;
36 uint64_t saved_tag;
37 uint16_t opcode;
38 };
39
40 enum {
41 FIO_SERVER_VER = 42,
42
43 FIO_SERVER_MAX_FRAGMENT_PDU = 1024,
44 FIO_SERVER_MAX_CMD_MB = 2048,
45
46 FIO_NET_CMD_QUIT = 1,
47 FIO_NET_CMD_EXIT = 2,
48 FIO_NET_CMD_JOB = 3,
49 FIO_NET_CMD_JOBLINE = 4,
50 FIO_NET_CMD_TEXT = 5,
51 FIO_NET_CMD_TS = 6,
52 FIO_NET_CMD_GS = 7,
53 FIO_NET_CMD_SEND_ETA = 8,
54 FIO_NET_CMD_ETA = 9,
55 FIO_NET_CMD_PROBE = 10,
56 FIO_NET_CMD_START = 11,
57 FIO_NET_CMD_STOP = 12,
58 FIO_NET_CMD_DU = 13,
59 FIO_NET_CMD_SERVER_START = 14,
60 FIO_NET_CMD_ADD_JOB = 15,
61 FIO_NET_CMD_RUN = 16,
62 FIO_NET_CMD_IOLOG = 17,
63 FIO_NET_CMD_UPDATE_JOB = 18,
64 FIO_NET_CMD_LOAD_FILE = 19,
65 FIO_NET_CMD_VTRIGGER = 20,
66 FIO_NET_CMD_SENDFILE = 21,
67 FIO_NET_CMD_NR = 22,
68
69 FIO_NET_CMD_F_MORE = 1UL << 0,
70
71 /* crc does not include the crc fields */
72 FIO_NET_CMD_CRC_SZ = sizeof(struct fio_net_cmd) -
73 2 * sizeof(uint16_t),
74
75 FIO_NET_NAME_MAX = 256,
76
77 FIO_NET_CLIENT_TIMEOUT = 5000,
78
79 FIO_PROBE_FLAG_ZLIB = 1UL << 0,
80 };
81
82 struct cmd_sendfile {
83 uint8_t path[FIO_NET_NAME_MAX];
84 };
85
86 struct cmd_sendfile_reply {
87 uint32_t size;
88 uint32_t error;
89 uint8_t data[0];
90 };
91
92 /*
93 * Client sends this to server on VTRIGGER, server sends back a full
94 * all_io_list structure.
95 */
96 struct cmd_vtrigger_pdu {
97 uint16_t len;
98 uint8_t cmd[];
99 };
100
101 struct cmd_load_file_pdu {
102 uint16_t name_len;
103 uint16_t client_type;
104 uint8_t file[];
105 };
106
107 struct cmd_ts_pdu {
108 struct thread_stat ts;
109 struct group_run_stats rs;
110 };
111
112 struct cmd_du_pdu {
113 struct disk_util_stat dus;
114 struct disk_util_agg agg;
115 };
116
117 struct cmd_client_probe_pdu {
118 uint64_t flags;
119 uint8_t server[128];
120 };
121
122 struct cmd_probe_reply_pdu {
123 uint8_t hostname[64];
124 uint8_t bigendian;
125 uint8_t fio_version[32];
126 uint8_t os;
127 uint8_t arch;
128 uint8_t bpp;
129 uint32_t cpus;
130 uint64_t flags;
131 };
132
133 struct cmd_single_line_pdu {
134 uint16_t len;
135 uint8_t text[];
136 };
137
138 struct cmd_line_pdu {
139 uint16_t lines;
140 uint16_t client_type;
141 struct cmd_single_line_pdu options[];
142 };
143
144 struct cmd_job_pdu {
145 uint32_t buf_len;
146 uint32_t client_type;
147 uint8_t buf[0];
148 };
149
150 struct cmd_start_pdu {
151 uint32_t jobs;
152 uint32_t stat_outputs;
153 };
154
155 struct cmd_end_pdu {
156 uint32_t error;
157 uint32_t signal;
158 };
159
160 struct cmd_add_job_pdu {
161 uint32_t thread_number;
162 uint32_t groupid;
163 struct thread_options_pack top;
164 };
165
166 struct cmd_text_pdu {
167 uint32_t level;
168 uint32_t buf_len;
169 uint64_t log_sec;
170 uint64_t log_usec;
171 uint8_t buf[0];
172 };
173
174 struct cmd_iolog_pdu {
175 uint64_t nr_samples;
176 uint32_t thread_number;
177 uint32_t log_type;
178 uint32_t compressed;
179 uint32_t log_offset;
180 uint8_t name[FIO_NET_NAME_MAX];
181 struct io_sample samples[0];
182 };
183
184 extern int fio_start_server(char *);
185 extern int fio_server_text_output(int, const char *, size_t);
186 extern int fio_net_send_cmd(int, uint16_t, const void *, off_t, uint64_t *, struct flist_head *);
187 extern int fio_net_send_simple_cmd(int, uint16_t, uint64_t, struct flist_head *);
188 extern void fio_server_set_arg(const char *);
189 extern int fio_server_parse_string(const char *, char **, int *, int *, struct in_addr *, struct in6_addr *, int *);
190 extern int fio_server_parse_host(const char *, int, struct in_addr *, struct in6_addr *);
191 extern const char *fio_server_op(unsigned int);
192 extern void fio_server_got_signal(int);
193
194 struct thread_stat;
195 struct group_run_stats;
196 extern void fio_server_send_ts(struct thread_stat *, struct group_run_stats *);
197 extern void fio_server_send_gs(struct group_run_stats *);
198 extern void fio_server_send_du(void);
199 extern void fio_server_idle_loop(void);
200 extern int fio_server_get_verify_state(const char *, int, void **);
201
202 extern int fio_recv_data(int sk, void *p, unsigned int len);
203 extern int fio_send_data(int sk, const void *p, unsigned int len);
204 extern void fio_net_cmd_crc(struct fio_net_cmd *);
205 extern void fio_net_cmd_crc_pdu(struct fio_net_cmd *, const void *);
206 extern struct fio_net_cmd *fio_net_recv_cmd(int sk);
207
208 extern int fio_send_iolog(struct thread_data *, struct io_log *, const char *);
209 extern void fio_server_send_add_job(struct thread_data *);
210 extern void fio_server_send_start(struct thread_data *);
211 extern int fio_net_send_stop(int sk, int error, int signal);
212 extern int fio_net_send_quit(int sk);
213
214 extern int exit_backend;
215 extern int fio_net_port;
216
__fio_init_net_cmd(struct fio_net_cmd * cmd,uint16_t opcode,uint32_t pdu_len,uint64_t tag)217 static inline void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
218 uint32_t pdu_len, uint64_t tag)
219 {
220 memset(cmd, 0, sizeof(*cmd));
221
222 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
223 cmd->opcode = cpu_to_le16(opcode);
224 cmd->tag = cpu_to_le64(tag);
225 cmd->pdu_len = cpu_to_le32(pdu_len);
226 }
227
228
fio_init_net_cmd(struct fio_net_cmd * cmd,uint16_t opcode,const void * pdu,uint32_t pdu_len,uint64_t tag)229 static inline void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
230 const void *pdu, uint32_t pdu_len,
231 uint64_t tag)
232 {
233 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
234
235 if (pdu)
236 memcpy(&cmd->payload, pdu, pdu_len);
237 }
238
239 #endif
240