Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 3 | #include <stdarg.h> |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 4 | #include <unistd.h> |
| 5 | #include <limits.h> |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 6 | #include <errno.h> |
| 7 | #include <fcntl.h> |
| 8 | #include <sys/poll.h> |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 9 | #include <sys/types.h> |
| 10 | #include <sys/wait.h> |
Jens Axboe | d05c4a0 | 2011-10-05 00:16:11 +0200 | [diff] [blame] | 11 | #include <sys/socket.h> |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 12 | #include <sys/stat.h> |
| 13 | #include <sys/un.h> |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 14 | #include <netinet/in.h> |
| 15 | #include <arpa/inet.h> |
| 16 | #include <netdb.h> |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 17 | #include <syslog.h> |
Jens Axboe | 9e22ecb | 2011-10-04 14:50:21 +0200 | [diff] [blame] | 18 | #include <signal.h> |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 19 | |
| 20 | #include "fio.h" |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 21 | #include "server.h" |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 22 | #include "crc/crc16.h" |
Jens Axboe | 802ad4a | 2011-10-05 09:51:58 +0200 | [diff] [blame] | 23 | #include "ieee754.h" |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 24 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 25 | int fio_net_port = 8765; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 26 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 27 | int exit_backend = 0; |
| 28 | |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 29 | static int server_fd = -1; |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 30 | static char *fio_server_arg; |
| 31 | static char *bind_sock; |
| 32 | static struct sockaddr_in saddr_in; |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 33 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 34 | int fio_send_data(int sk, const void *p, unsigned int len) |
| 35 | { |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 36 | assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_PDU); |
| 37 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 38 | do { |
| 39 | int ret = send(sk, p, len, 0); |
| 40 | |
| 41 | if (ret > 0) { |
| 42 | len -= ret; |
| 43 | if (!len) |
| 44 | break; |
| 45 | p += ret; |
| 46 | continue; |
| 47 | } else if (!ret) |
| 48 | break; |
| 49 | else if (errno == EAGAIN || errno == EINTR) |
| 50 | continue; |
| 51 | } while (!exit_backend); |
| 52 | |
| 53 | if (!len) |
| 54 | return 0; |
| 55 | |
| 56 | return 1; |
| 57 | } |
| 58 | |
| 59 | int fio_recv_data(int sk, void *p, unsigned int len) |
| 60 | { |
| 61 | do { |
| 62 | int ret = recv(sk, p, len, MSG_WAITALL); |
| 63 | |
| 64 | if (ret > 0) { |
| 65 | len -= ret; |
| 66 | if (!len) |
| 67 | break; |
| 68 | p += ret; |
| 69 | continue; |
| 70 | } else if (!ret) |
| 71 | break; |
| 72 | else if (errno == EAGAIN || errno == EINTR) |
| 73 | continue; |
| 74 | } while (!exit_backend); |
| 75 | |
| 76 | if (!len) |
| 77 | return 0; |
| 78 | |
| 79 | return -1; |
| 80 | } |
| 81 | |
| 82 | static int verify_convert_cmd(struct fio_net_cmd *cmd) |
| 83 | { |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 84 | uint16_t crc; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 85 | |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 86 | cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); |
| 87 | cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 88 | |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 89 | crc = crc16(cmd, FIO_NET_CMD_CRC_SZ); |
| 90 | if (crc != cmd->cmd_crc16) { |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 91 | log_err("fio: server bad crc on command (got %x, wanted %x)\n", |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 92 | cmd->cmd_crc16, crc); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 93 | return 1; |
| 94 | } |
| 95 | |
| 96 | cmd->version = le16_to_cpu(cmd->version); |
| 97 | cmd->opcode = le16_to_cpu(cmd->opcode); |
| 98 | cmd->flags = le32_to_cpu(cmd->flags); |
| 99 | cmd->serial = le64_to_cpu(cmd->serial); |
| 100 | cmd->pdu_len = le32_to_cpu(cmd->pdu_len); |
| 101 | |
| 102 | switch (cmd->version) { |
Jens Axboe | 178cde9 | 2011-10-05 22:14:31 +0200 | [diff] [blame] | 103 | case FIO_SERVER_VER2: |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 104 | break; |
| 105 | default: |
| 106 | log_err("fio: bad server cmd version %d\n", cmd->version); |
| 107 | return 1; |
| 108 | } |
| 109 | |
| 110 | if (cmd->pdu_len > FIO_SERVER_MAX_PDU) { |
| 111 | log_err("fio: command payload too large: %u\n", cmd->pdu_len); |
| 112 | return 1; |
| 113 | } |
| 114 | |
| 115 | return 0; |
| 116 | } |
| 117 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 118 | /* |
| 119 | * Read (and defragment, if necessary) incoming commands |
| 120 | */ |
Jens Axboe | e951bdc | 2011-10-05 21:58:45 +0200 | [diff] [blame] | 121 | struct fio_net_cmd *fio_net_recv_cmd(int sk) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 122 | { |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 123 | struct fio_net_cmd cmd, *cmdret = NULL; |
| 124 | size_t cmd_size = 0, pdu_offset = 0; |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 125 | uint16_t crc; |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 126 | int ret, first = 1; |
| 127 | void *pdu = NULL; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 128 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 129 | do { |
| 130 | ret = fio_recv_data(sk, &cmd, sizeof(cmd)); |
| 131 | if (ret) |
| 132 | break; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 133 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 134 | /* We have a command, verify it and swap if need be */ |
| 135 | ret = verify_convert_cmd(&cmd); |
| 136 | if (ret) |
| 137 | break; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 138 | |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 139 | if (first) { |
| 140 | /* if this is text, add room for \0 at the end */ |
| 141 | cmd_size = sizeof(cmd) + cmd.pdu_len + 1; |
| 142 | assert(!cmdret); |
| 143 | } else |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 144 | cmd_size += cmd.pdu_len; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 145 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 146 | cmdret = realloc(cmdret, cmd_size); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 147 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 148 | if (first) |
| 149 | memcpy(cmdret, &cmd, sizeof(cmd)); |
| 150 | else |
| 151 | assert(cmdret->opcode == cmd.opcode); |
| 152 | |
| 153 | if (!cmd.pdu_len) |
| 154 | break; |
| 155 | |
| 156 | /* There's payload, get it */ |
| 157 | pdu = (void *) cmdret->payload + pdu_offset; |
| 158 | ret = fio_recv_data(sk, pdu, cmd.pdu_len); |
| 159 | if (ret) |
| 160 | break; |
| 161 | |
| 162 | /* Verify payload crc */ |
| 163 | crc = crc16(pdu, cmd.pdu_len); |
| 164 | if (crc != cmd.pdu_crc16) { |
| 165 | log_err("fio: server bad crc on payload "); |
| 166 | log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); |
| 167 | ret = 1; |
| 168 | break; |
| 169 | } |
| 170 | |
| 171 | pdu_offset += cmd.pdu_len; |
Jens Axboe | 817f06b | 2011-10-03 15:03:08 +0200 | [diff] [blame] | 172 | if (!first) |
| 173 | cmdret->pdu_len += cmd.pdu_len; |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 174 | first = 0; |
| 175 | } while (cmd.flags & FIO_NET_CMD_F_MORE); |
| 176 | |
| 177 | if (ret) { |
| 178 | free(cmdret); |
| 179 | cmdret = NULL; |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 180 | } else if (cmdret) { |
| 181 | /* zero-terminate text input */ |
| 182 | if (cmdret->pdu_len && (cmdret->opcode == FIO_NET_CMD_TEXT || |
| 183 | cmdret->opcode == FIO_NET_CMD_JOB)) { |
| 184 | char *buf = (char *) cmdret->payload; |
| 185 | |
| 186 | buf[cmdret->pdu_len ] = '\0'; |
| 187 | } |
| 188 | /* frag flag is internal */ |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 189 | cmdret->flags &= ~FIO_NET_CMD_F_MORE; |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 190 | } |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 191 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 192 | return cmdret; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | void fio_net_cmd_crc(struct fio_net_cmd *cmd) |
| 196 | { |
| 197 | uint32_t pdu_len; |
| 198 | |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 199 | cmd->cmd_crc16 = __cpu_to_le16(crc16(cmd, FIO_NET_CMD_CRC_SZ)); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 200 | |
| 201 | pdu_len = le32_to_cpu(cmd->pdu_len); |
| 202 | if (pdu_len) |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 203 | cmd->pdu_crc16 = __cpu_to_le16(crc16(cmd->payload, pdu_len)); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 204 | } |
| 205 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 206 | int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size) |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 207 | { |
| 208 | struct fio_net_cmd *cmd; |
| 209 | size_t this_len; |
| 210 | int ret; |
| 211 | |
| 212 | do { |
| 213 | this_len = size; |
| 214 | if (this_len > FIO_SERVER_MAX_PDU) |
| 215 | this_len = FIO_SERVER_MAX_PDU; |
| 216 | |
| 217 | cmd = malloc(sizeof(*cmd) + this_len); |
| 218 | |
| 219 | fio_init_net_cmd(cmd, opcode, buf, this_len); |
| 220 | |
| 221 | if (this_len < size) |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 222 | cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 223 | |
| 224 | fio_net_cmd_crc(cmd); |
| 225 | |
| 226 | ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); |
| 227 | free(cmd); |
| 228 | size -= this_len; |
| 229 | buf += this_len; |
| 230 | } while (!ret && size); |
| 231 | |
| 232 | return ret; |
| 233 | } |
| 234 | |
Jens Axboe | cc0df00 | 2011-10-03 20:53:32 +0200 | [diff] [blame] | 235 | int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t serial) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 236 | { |
Jens Axboe | 178cde9 | 2011-10-05 22:14:31 +0200 | [diff] [blame] | 237 | struct fio_net_cmd cmd; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 238 | |
Jens Axboe | 178cde9 | 2011-10-05 22:14:31 +0200 | [diff] [blame] | 239 | fio_init_net_cmd(&cmd, opcode, NULL, 0); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 240 | fio_net_cmd_crc(&cmd); |
| 241 | |
| 242 | return fio_send_data(sk, &cmd, sizeof(cmd)); |
| 243 | } |
| 244 | |
Jens Axboe | 9abea48 | 2011-10-04 13:21:54 +0200 | [diff] [blame] | 245 | static int fio_server_send_quit_cmd(void) |
Jens Axboe | 437377e | 2011-10-01 08:31:30 -0600 | [diff] [blame] | 246 | { |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 247 | dprint(FD_NET, "server: sending quit\n"); |
Jens Axboe | cc0df00 | 2011-10-03 20:53:32 +0200 | [diff] [blame] | 248 | return fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_QUIT, 0); |
Jens Axboe | 437377e | 2011-10-01 08:31:30 -0600 | [diff] [blame] | 249 | } |
| 250 | |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 251 | static int handle_job_cmd(struct fio_net_cmd *cmd) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 252 | { |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 253 | char *buf = (char *) cmd->payload; |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 254 | int ret; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 255 | |
Jens Axboe | e6d1c66 | 2011-10-05 20:41:06 +0200 | [diff] [blame] | 256 | if (parse_jobs_ini(buf, 1, 0)) { |
| 257 | fio_server_send_quit_cmd(); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 258 | return -1; |
Jens Axboe | e6d1c66 | 2011-10-05 20:41:06 +0200 | [diff] [blame] | 259 | } |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 260 | |
| 261 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0); |
| 262 | |
| 263 | ret = exec_run(); |
Jens Axboe | 9abea48 | 2011-10-04 13:21:54 +0200 | [diff] [blame] | 264 | fio_server_send_quit_cmd(); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 265 | reset_fio_state(); |
| 266 | return ret; |
| 267 | } |
| 268 | |
| 269 | static int handle_jobline_cmd(struct fio_net_cmd *cmd) |
| 270 | { |
| 271 | struct cmd_line_pdu *pdu = (struct cmd_line_pdu *) cmd->payload; |
| 272 | char *argv[FIO_NET_CMD_JOBLINE_ARGV]; |
| 273 | int ret, i; |
| 274 | |
| 275 | pdu->argc = le16_to_cpu(pdu->argc); |
| 276 | |
Jens Axboe | 39e8e01 | 2011-10-04 13:46:08 +0200 | [diff] [blame] | 277 | dprint(FD_NET, "server: %d command line args\n", pdu->argc); |
| 278 | |
| 279 | for (i = 0; i < pdu->argc; i++) { |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 280 | argv[i] = (char *) pdu->argv[i]; |
Jens Axboe | 39e8e01 | 2011-10-04 13:46:08 +0200 | [diff] [blame] | 281 | dprint(FD_NET, "server: %d: %s\n", i, argv[i]); |
| 282 | } |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 283 | |
Jens Axboe | e6d1c66 | 2011-10-05 20:41:06 +0200 | [diff] [blame] | 284 | if (parse_cmd_line(pdu->argc, argv)) { |
| 285 | fio_server_send_quit_cmd(); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 286 | return -1; |
Jens Axboe | e6d1c66 | 2011-10-05 20:41:06 +0200 | [diff] [blame] | 287 | } |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 288 | |
| 289 | fio_net_send_simple_cmd(server_fd, FIO_NET_CMD_START, 0); |
| 290 | |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 291 | ret = exec_run(); |
Jens Axboe | 9abea48 | 2011-10-04 13:21:54 +0200 | [diff] [blame] | 292 | fio_server_send_quit_cmd(); |
Jens Axboe | 794d69c | 2011-10-01 08:48:50 -0600 | [diff] [blame] | 293 | reset_fio_state(); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 294 | return ret; |
| 295 | } |
| 296 | |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 297 | static int handle_probe_cmd(struct fio_net_cmd *cmd) |
| 298 | { |
| 299 | struct cmd_probe_pdu probe; |
| 300 | |
| 301 | memset(&probe, 0, sizeof(probe)); |
| 302 | gethostname((char *) probe.hostname, sizeof(probe.hostname)); |
Jens Axboe | 6eb2479 | 2011-10-04 15:00:30 +0200 | [diff] [blame] | 303 | #ifdef FIO_BIG_ENDIAN |
| 304 | probe.bigendian = 1; |
| 305 | #endif |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 306 | probe.fio_major = FIO_MAJOR; |
| 307 | probe.fio_minor = FIO_MINOR; |
| 308 | probe.fio_patch = FIO_PATCH; |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 309 | |
| 310 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe)); |
| 311 | } |
| 312 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 313 | static int handle_command(struct fio_net_cmd *cmd) |
| 314 | { |
| 315 | int ret; |
| 316 | |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 317 | dprint(FD_NET, "server: got opcode %d\n", cmd->opcode); |
| 318 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 319 | switch (cmd->opcode) { |
| 320 | case FIO_NET_CMD_QUIT: |
Jens Axboe | cc0df00 | 2011-10-03 20:53:32 +0200 | [diff] [blame] | 321 | fio_terminate_threads(TERMINATE_ALL); |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 322 | return -1; |
Jens Axboe | d795918 | 2011-10-03 11:48:39 +0200 | [diff] [blame] | 323 | case FIO_NET_CMD_EXIT: |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 324 | exit_backend = 1; |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 325 | return -1; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 326 | case FIO_NET_CMD_JOB: |
Jens Axboe | 0b8f30a | 2011-10-04 10:31:53 +0200 | [diff] [blame] | 327 | ret = handle_job_cmd(cmd); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 328 | break; |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 329 | case FIO_NET_CMD_JOBLINE: |
| 330 | ret = handle_jobline_cmd(cmd); |
| 331 | break; |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 332 | case FIO_NET_CMD_PROBE: |
| 333 | ret = handle_probe_cmd(cmd); |
| 334 | break; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 335 | default: |
| 336 | log_err("fio: unknown opcode: %d\n", cmd->opcode); |
| 337 | ret = 1; |
| 338 | } |
| 339 | |
| 340 | return ret; |
| 341 | } |
| 342 | |
Jens Axboe | 70e0c31 | 2011-10-04 09:18:30 +0200 | [diff] [blame] | 343 | static int handle_connection(int sk, int block) |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 344 | { |
| 345 | struct fio_net_cmd *cmd = NULL; |
| 346 | int ret = 0; |
| 347 | |
| 348 | /* read forever */ |
| 349 | while (!exit_backend) { |
Jens Axboe | e951bdc | 2011-10-05 21:58:45 +0200 | [diff] [blame] | 350 | struct pollfd pfd = { |
| 351 | .fd = sk, |
| 352 | .events = POLLIN, |
| 353 | }; |
| 354 | |
| 355 | ret = 0; |
| 356 | do { |
| 357 | ret = poll(&pfd, 1, 100); |
| 358 | if (ret < 0) { |
| 359 | if (errno == EINTR) |
| 360 | break; |
| 361 | log_err("fio: poll: %s\n", strerror(errno)); |
| 362 | break; |
Jens Axboe | 19c6517 | 2011-10-05 22:05:37 +0200 | [diff] [blame] | 363 | } else if (!ret) { |
| 364 | if (!block) |
| 365 | return 0; |
Jens Axboe | e951bdc | 2011-10-05 21:58:45 +0200 | [diff] [blame] | 366 | continue; |
Jens Axboe | 19c6517 | 2011-10-05 22:05:37 +0200 | [diff] [blame] | 367 | } |
Jens Axboe | e951bdc | 2011-10-05 21:58:45 +0200 | [diff] [blame] | 368 | |
| 369 | if (pfd.revents & POLLIN) |
| 370 | break; |
| 371 | if (pfd.revents & (POLLERR|POLLHUP)) { |
| 372 | ret = 1; |
| 373 | break; |
| 374 | } |
Jens Axboe | 19c6517 | 2011-10-05 22:05:37 +0200 | [diff] [blame] | 375 | } while (!exit_backend); |
Jens Axboe | e951bdc | 2011-10-05 21:58:45 +0200 | [diff] [blame] | 376 | |
| 377 | if (ret < 0) |
| 378 | break; |
| 379 | |
| 380 | cmd = fio_net_recv_cmd(sk); |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 381 | if (!cmd) { |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 382 | ret = -1; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 383 | break; |
| 384 | } |
| 385 | |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 386 | ret = handle_command(cmd); |
| 387 | if (ret) |
| 388 | break; |
| 389 | |
| 390 | free(cmd); |
Jens Axboe | c77a99e | 2011-10-01 16:26:42 -0400 | [diff] [blame] | 391 | cmd = NULL; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | if (cmd) |
| 395 | free(cmd); |
| 396 | |
| 397 | return ret; |
| 398 | } |
| 399 | |
Jens Axboe | cc0df00 | 2011-10-03 20:53:32 +0200 | [diff] [blame] | 400 | void fio_server_idle_loop(void) |
| 401 | { |
| 402 | if (server_fd != -1) |
Jens Axboe | 70e0c31 | 2011-10-04 09:18:30 +0200 | [diff] [blame] | 403 | handle_connection(server_fd, 0); |
Jens Axboe | cc0df00 | 2011-10-03 20:53:32 +0200 | [diff] [blame] | 404 | } |
| 405 | |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 406 | static int accept_loop(int listen_sk) |
| 407 | { |
Jens Axboe | bb447a2 | 2011-10-04 15:06:42 +0200 | [diff] [blame] | 408 | struct sockaddr_in addr; |
Jens Axboe | 5ba13ea | 2011-10-04 23:50:28 +0200 | [diff] [blame] | 409 | fio_socklen_t len = sizeof(addr); |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 410 | struct pollfd pfd; |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 411 | int ret, sk, flags, exitval = 0; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 412 | |
Jens Axboe | 60efd14 | 2011-10-04 13:30:11 +0200 | [diff] [blame] | 413 | dprint(FD_NET, "server enter accept loop\n"); |
| 414 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 415 | flags = fcntl(listen_sk, F_GETFL); |
| 416 | flags |= O_NONBLOCK; |
| 417 | fcntl(listen_sk, F_SETFL, flags); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 418 | again: |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 419 | pfd.fd = listen_sk; |
| 420 | pfd.events = POLLIN; |
| 421 | do { |
| 422 | ret = poll(&pfd, 1, 100); |
| 423 | if (ret < 0) { |
| 424 | if (errno == EINTR) |
| 425 | break; |
Jens Axboe | fcee5ff | 2011-09-30 22:50:39 -0600 | [diff] [blame] | 426 | log_err("fio: poll: %s\n", strerror(errno)); |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 427 | goto out; |
| 428 | } else if (!ret) |
| 429 | continue; |
| 430 | |
| 431 | if (pfd.revents & POLLIN) |
| 432 | break; |
| 433 | } while (!exit_backend); |
| 434 | |
| 435 | if (exit_backend) |
| 436 | goto out; |
| 437 | |
Jens Axboe | 6b976bf | 2011-10-04 15:07:43 +0200 | [diff] [blame] | 438 | sk = accept(listen_sk, (struct sockaddr *) &addr, &len); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 439 | if (sk < 0) { |
Jens Axboe | 690e09a | 2011-09-29 18:38:08 -0600 | [diff] [blame] | 440 | log_err("fio: accept: %s\n", strerror(errno)); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 441 | return -1; |
| 442 | } |
| 443 | |
Jens Axboe | bb447a2 | 2011-10-04 15:06:42 +0200 | [diff] [blame] | 444 | dprint(FD_NET, "server: connect from %s\n", inet_ntoa(addr.sin_addr)); |
Jens Axboe | 46c48f1 | 2011-10-01 12:50:51 -0600 | [diff] [blame] | 445 | |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 446 | server_fd = sk; |
| 447 | |
Jens Axboe | 70e0c31 | 2011-10-04 09:18:30 +0200 | [diff] [blame] | 448 | exitval = handle_connection(sk, 1); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 449 | |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 450 | server_fd = -1; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 451 | close(sk); |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 452 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 453 | if (!exit_backend) |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 454 | goto again; |
| 455 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame] | 456 | out: |
Jens Axboe | 132159a | 2011-09-30 15:01:32 -0600 | [diff] [blame] | 457 | return exitval; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 458 | } |
| 459 | |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 460 | int fio_server_text_output(const char *buf, unsigned int len) |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 461 | { |
Jens Axboe | 337d75a | 2011-10-01 12:36:32 -0600 | [diff] [blame] | 462 | if (server_fd != -1) |
| 463 | return fio_net_send_cmd(server_fd, FIO_NET_CMD_TEXT, buf, len); |
| 464 | |
Jens Axboe | 5037b84 | 2011-10-04 17:32:16 +0200 | [diff] [blame] | 465 | return fwrite(buf, len, 1, f_err); |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 466 | } |
| 467 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 468 | static void convert_io_stat(struct io_stat *dst, struct io_stat *src) |
| 469 | { |
| 470 | dst->max_val = cpu_to_le64(src->max_val); |
| 471 | dst->min_val = cpu_to_le64(src->min_val); |
| 472 | dst->samples = cpu_to_le64(src->samples); |
Jens Axboe | 802ad4a | 2011-10-05 09:51:58 +0200 | [diff] [blame] | 473 | |
| 474 | /* |
| 475 | * Encode to IEEE 754 for network transfer |
| 476 | */ |
| 477 | dst->mean.u.i = __cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); |
| 478 | dst->S.u.i = __cpu_to_le64(fio_double_to_uint64(src->S.u.f)); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) |
| 482 | { |
| 483 | int i; |
| 484 | |
| 485 | for (i = 0; i < 2; i++) { |
| 486 | dst->max_run[i] = cpu_to_le64(src->max_run[i]); |
| 487 | dst->min_run[i] = cpu_to_le64(src->min_run[i]); |
| 488 | dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); |
| 489 | dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); |
| 490 | dst->io_kb[i] = cpu_to_le64(src->io_kb[i]); |
| 491 | dst->agg[i] = cpu_to_le64(src->agg[i]); |
| 492 | } |
| 493 | |
| 494 | dst->kb_base = cpu_to_le32(src->kb_base); |
| 495 | dst->groupid = cpu_to_le32(src->groupid); |
| 496 | } |
| 497 | |
| 498 | /* |
| 499 | * Send a CMD_TS, which packs struct thread_stat and group_run_stats |
| 500 | * into a single payload. |
| 501 | */ |
| 502 | void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) |
| 503 | { |
| 504 | struct cmd_ts_pdu p; |
| 505 | int i, j; |
| 506 | |
Jens Axboe | 60efd14 | 2011-10-04 13:30:11 +0200 | [diff] [blame] | 507 | dprint(FD_NET, "server sending end stats\n"); |
| 508 | |
Jens Axboe | 317b3c8 | 2011-10-03 21:47:27 +0200 | [diff] [blame] | 509 | memset(&p, 0, sizeof(p)); |
| 510 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 511 | strcpy(p.ts.name, ts->name); |
| 512 | strcpy(p.ts.verror, ts->verror); |
| 513 | strcpy(p.ts.description, ts->description); |
| 514 | |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 515 | p.ts.error = cpu_to_le32(ts->error); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 516 | p.ts.groupid = cpu_to_le32(ts->groupid); |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 517 | p.ts.pid = cpu_to_le32(ts->pid); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 518 | p.ts.members = cpu_to_le32(ts->members); |
| 519 | |
| 520 | for (i = 0; i < 2; i++) { |
| 521 | convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); |
| 522 | convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); |
| 523 | convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); |
| 524 | convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); |
| 525 | } |
| 526 | |
| 527 | p.ts.usr_time = cpu_to_le64(ts->usr_time); |
| 528 | p.ts.sys_time = cpu_to_le64(ts->sys_time); |
| 529 | p.ts.ctx = cpu_to_le64(ts->ctx); |
| 530 | p.ts.minf = cpu_to_le64(ts->minf); |
| 531 | p.ts.majf = cpu_to_le64(ts->majf); |
| 532 | p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); |
Jens Axboe | 802ad4a | 2011-10-05 09:51:58 +0200 | [diff] [blame] | 533 | |
| 534 | for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { |
| 535 | fio_fp64_t *fp = &p.ts.percentile_list[i]; |
| 536 | |
| 537 | fp->u.i = __cpu_to_le64(fio_double_to_uint64(fp->u.f)); |
| 538 | } |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 539 | |
| 540 | for (i = 0; i < FIO_IO_U_MAP_NR; i++) { |
| 541 | p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); |
| 542 | p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); |
| 543 | p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); |
| 544 | } |
| 545 | |
| 546 | for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) { |
| 547 | p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); |
| 548 | p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); |
| 549 | } |
| 550 | |
| 551 | for (i = 0; i < 2; i++) |
| 552 | for (j = 0; j < FIO_IO_U_PLAT_NR; j++) |
| 553 | p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); |
| 554 | |
| 555 | for (i = 0; i < 3; i++) { |
| 556 | p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); |
Jens Axboe | 93eee04 | 2011-10-03 21:08:48 +0200 | [diff] [blame] | 557 | p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 558 | } |
| 559 | |
Jens Axboe | 93eee04 | 2011-10-03 21:08:48 +0200 | [diff] [blame] | 560 | p.ts.total_submit = cpu_to_le64(ts->total_submit); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 561 | p.ts.total_complete = cpu_to_le64(ts->total_complete); |
| 562 | |
| 563 | for (i = 0; i < 2; i++) { |
| 564 | p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); |
| 565 | p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); |
| 566 | } |
| 567 | |
| 568 | p.ts.total_run_time = cpu_to_le64(ts->total_run_time); |
| 569 | p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); |
| 570 | p.ts.total_err_count = cpu_to_le64(ts->total_err_count); |
Jens Axboe | ddcc0b6 | 2011-10-03 14:45:27 +0200 | [diff] [blame] | 571 | p.ts.first_error = cpu_to_le32(ts->first_error); |
| 572 | p.ts.kb_base = cpu_to_le32(ts->kb_base); |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 573 | |
| 574 | convert_gs(&p.rs, rs); |
| 575 | |
| 576 | fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p)); |
| 577 | } |
| 578 | |
| 579 | void fio_server_send_gs(struct group_run_stats *rs) |
| 580 | { |
| 581 | struct group_run_stats gs; |
| 582 | |
Jens Axboe | 60efd14 | 2011-10-04 13:30:11 +0200 | [diff] [blame] | 583 | dprint(FD_NET, "server sending group run stats\n"); |
| 584 | |
Jens Axboe | a64e88d | 2011-10-03 14:20:01 +0200 | [diff] [blame] | 585 | convert_gs(&gs, rs); |
| 586 | fio_net_send_cmd(server_fd, FIO_NET_CMD_GS, &gs, sizeof(gs)); |
| 587 | } |
| 588 | |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 589 | void fio_server_send_status(void) |
| 590 | { |
Jens Axboe | 1d1f45a | 2011-10-03 19:44:41 +0200 | [diff] [blame] | 591 | struct jobs_eta *je; |
| 592 | size_t size; |
| 593 | void *buf; |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 594 | int i; |
| 595 | |
Jens Axboe | 1d1f45a | 2011-10-03 19:44:41 +0200 | [diff] [blame] | 596 | size = sizeof(*je) + thread_number * sizeof(char); |
| 597 | buf = malloc(size); |
| 598 | memset(buf, 0, size); |
| 599 | je = buf; |
| 600 | |
| 601 | if (!calc_thread_status(je)) { |
| 602 | free(je); |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 603 | return; |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 604 | } |
| 605 | |
Jens Axboe | 60efd14 | 2011-10-04 13:30:11 +0200 | [diff] [blame] | 606 | dprint(FD_NET, "server sending status\n"); |
| 607 | |
Jens Axboe | 1d1f45a | 2011-10-03 19:44:41 +0200 | [diff] [blame] | 608 | je->nr_running = cpu_to_le32(je->nr_running); |
| 609 | je->nr_ramp = cpu_to_le32(je->nr_ramp); |
| 610 | je->nr_pending = cpu_to_le32(je->nr_pending); |
| 611 | je->files_open = cpu_to_le32(je->files_open); |
| 612 | je->m_rate = cpu_to_le32(je->m_rate); |
| 613 | je->t_rate = cpu_to_le32(je->t_rate); |
| 614 | je->m_iops = cpu_to_le32(je->m_iops); |
| 615 | je->t_iops = cpu_to_le32(je->t_iops); |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 616 | |
Jens Axboe | 1d1f45a | 2011-10-03 19:44:41 +0200 | [diff] [blame] | 617 | for (i = 0; i < 2; i++) { |
| 618 | je->rate[i] = cpu_to_le32(je->rate[i]); |
| 619 | je->iops[i] = cpu_to_le32(je->iops[i]); |
| 620 | } |
| 621 | |
| 622 | je->elapsed_sec = cpu_to_le32(je->nr_running); |
| 623 | je->eta_sec = cpu_to_le64(je->eta_sec); |
| 624 | |
| 625 | fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, buf, size); |
| 626 | free(je); |
Jens Axboe | cf451d1 | 2011-10-03 16:48:30 +0200 | [diff] [blame] | 627 | } |
| 628 | |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 629 | int fio_server_log(const char *format, ...) |
| 630 | { |
| 631 | char buffer[1024]; |
| 632 | va_list args; |
Jens Axboe | 82fa6b2 | 2011-09-30 22:29:08 -0600 | [diff] [blame] | 633 | size_t len; |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 634 | |
Jens Axboe | 60efd14 | 2011-10-04 13:30:11 +0200 | [diff] [blame] | 635 | dprint(FD_NET, "server log\n"); |
| 636 | |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 637 | va_start(args, format); |
Jens Axboe | 82fa6b2 | 2011-09-30 22:29:08 -0600 | [diff] [blame] | 638 | len = vsnprintf(buffer, sizeof(buffer), format, args); |
Jens Axboe | 142575e | 2011-09-30 17:35:45 -0600 | [diff] [blame] | 639 | va_end(args); |
| 640 | |
Jens Axboe | 82fa6b2 | 2011-09-30 22:29:08 -0600 | [diff] [blame] | 641 | return fio_server_text_output(buffer, len); |
Jens Axboe | 37db14f | 2011-09-30 17:00:42 -0600 | [diff] [blame] | 642 | } |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 643 | |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 644 | static int fio_init_server_ip(void) |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 645 | { |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 646 | int sk, opt; |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 647 | |
| 648 | sk = socket(AF_INET, SOCK_STREAM, 0); |
| 649 | if (sk < 0) { |
| 650 | log_err("fio: socket: %s\n", strerror(errno)); |
| 651 | return -1; |
| 652 | } |
| 653 | |
| 654 | opt = 1; |
| 655 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { |
| 656 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
Jens Axboe | b94cba4 | 2011-10-06 21:27:10 +0200 | [diff] [blame^] | 657 | close(sk); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 658 | return -1; |
| 659 | } |
| 660 | #ifdef SO_REUSEPORT |
Jens Axboe | 6eb2479 | 2011-10-04 15:00:30 +0200 | [diff] [blame] | 661 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 662 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
Jens Axboe | b94cba4 | 2011-10-06 21:27:10 +0200 | [diff] [blame^] | 663 | close(sk); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 664 | return -1; |
| 665 | } |
| 666 | #endif |
| 667 | |
| 668 | saddr_in.sin_family = AF_INET; |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 669 | saddr_in.sin_port = htons(fio_net_port); |
| 670 | |
| 671 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { |
| 672 | log_err("fio: bind: %s\n", strerror(errno)); |
Jens Axboe | b94cba4 | 2011-10-06 21:27:10 +0200 | [diff] [blame^] | 673 | close(sk); |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 674 | return -1; |
| 675 | } |
| 676 | |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 677 | return sk; |
| 678 | } |
| 679 | |
| 680 | static int fio_init_server_sock(void) |
| 681 | { |
| 682 | struct sockaddr_un addr; |
| 683 | fio_socklen_t len; |
| 684 | mode_t mode; |
| 685 | int sk; |
| 686 | |
| 687 | sk = socket(AF_UNIX, SOCK_STREAM, 0); |
| 688 | if (sk < 0) { |
| 689 | log_err("fio: socket: %s\n", strerror(errno)); |
| 690 | return -1; |
| 691 | } |
| 692 | |
| 693 | mode = umask(000); |
| 694 | |
| 695 | memset(&addr, 0, sizeof(addr)); |
| 696 | addr.sun_family = AF_UNIX; |
| 697 | strcpy(addr.sun_path, bind_sock); |
| 698 | unlink(bind_sock); |
| 699 | |
| 700 | len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; |
| 701 | |
| 702 | if (bind(sk, (struct sockaddr *) &addr, len) < 0) { |
| 703 | log_err("fio: bind: %s\n", strerror(errno)); |
Jens Axboe | b94cba4 | 2011-10-06 21:27:10 +0200 | [diff] [blame^] | 704 | close(sk); |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 705 | return -1; |
| 706 | } |
| 707 | |
| 708 | umask(mode); |
| 709 | return sk; |
| 710 | } |
| 711 | |
| 712 | static int fio_init_server_connection(void) |
| 713 | { |
| 714 | int sk; |
| 715 | |
| 716 | dprint(FD_NET, "starting server\n"); |
| 717 | |
| 718 | if (!bind_sock) |
| 719 | sk = fio_init_server_ip(); |
| 720 | else |
| 721 | sk = fio_init_server_sock(); |
| 722 | |
| 723 | if (sk < 0) |
| 724 | return sk; |
| 725 | |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 726 | if (listen(sk, 1) < 0) { |
| 727 | log_err("fio: listen: %s\n", strerror(errno)); |
| 728 | return -1; |
| 729 | } |
| 730 | |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 731 | return sk; |
| 732 | } |
| 733 | |
| 734 | /* |
| 735 | * Server arg should be one of: |
| 736 | * |
| 737 | * sock:/path/to/socket |
| 738 | * ip:1.2.3.4 |
| 739 | * 1.2.3.4 |
| 740 | * |
| 741 | * Where sock uses unix domain sockets, and ip binds the server to |
| 742 | * a specific interface. If no arguments are given to the server, it |
| 743 | * uses IP and binds to 0.0.0.0. |
| 744 | * |
| 745 | */ |
| 746 | static int fio_handle_server_arg(void) |
| 747 | { |
| 748 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); |
| 749 | |
| 750 | if (!fio_server_arg) |
| 751 | return 0; |
| 752 | if (!strncmp(fio_server_arg, "sock:", 5)) { |
| 753 | bind_sock = fio_server_arg += 5; |
| 754 | return 0; |
| 755 | } else { |
| 756 | char *host = fio_server_arg; |
| 757 | |
| 758 | if (!strncmp(host, "ip:", 3)) |
| 759 | host += 3; |
| 760 | |
| 761 | if (inet_aton(host, &saddr_in.sin_addr) != 1) { |
| 762 | struct hostent *hent; |
| 763 | |
| 764 | hent = gethostbyname(host); |
| 765 | if (hent) |
| 766 | memcpy(&saddr_in.sin_addr, hent->h_addr, 4); |
| 767 | } |
| 768 | return 0; |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 769 | } |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | static int fio_server(void) |
| 773 | { |
| 774 | int sk, ret; |
| 775 | |
| 776 | dprint(FD_NET, "starting server\n"); |
| 777 | |
| 778 | if (fio_handle_server_arg()) |
| 779 | return -1; |
| 780 | |
| 781 | sk = fio_init_server_connection(); |
| 782 | if (sk < 0) |
| 783 | return -1; |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 784 | |
| 785 | ret = accept_loop(sk); |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 786 | |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 787 | close(sk); |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 788 | |
| 789 | if (fio_server_arg) { |
| 790 | free(fio_server_arg); |
| 791 | fio_server_arg = NULL; |
| 792 | } |
| 793 | |
Jens Axboe | 81179ee | 2011-10-04 12:42:06 +0200 | [diff] [blame] | 794 | return ret; |
| 795 | } |
| 796 | |
Jens Axboe | 9abea48 | 2011-10-04 13:21:54 +0200 | [diff] [blame] | 797 | static void sig_int(int sig) |
| 798 | { |
| 799 | fio_terminate_threads(TERMINATE_ALL); |
| 800 | exit_backend = 1; |
| 801 | } |
| 802 | |
| 803 | static void server_signal_handler(void) |
| 804 | { |
| 805 | struct sigaction act; |
| 806 | |
| 807 | memset(&act, 0, sizeof(act)); |
| 808 | act.sa_handler = sig_int; |
| 809 | act.sa_flags = SA_RESTART; |
| 810 | sigaction(SIGINT, &act, NULL); |
| 811 | |
| 812 | memset(&act, 0, sizeof(act)); |
| 813 | act.sa_handler = sig_int; |
| 814 | act.sa_flags = SA_RESTART; |
| 815 | sigaction(SIGTERM, &act, NULL); |
| 816 | } |
| 817 | |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 818 | int fio_start_server(int daemonize) |
| 819 | { |
| 820 | pid_t pid; |
| 821 | |
Jens Axboe | 9abea48 | 2011-10-04 13:21:54 +0200 | [diff] [blame] | 822 | server_signal_handler(); |
| 823 | |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 824 | if (!daemonize) |
| 825 | return fio_server(); |
| 826 | |
| 827 | openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); |
| 828 | pid = fork(); |
| 829 | if (pid < 0) { |
| 830 | syslog(LOG_ERR, "failed server fork"); |
Jens Axboe | c28e8e8 | 2011-10-04 08:57:39 +0200 | [diff] [blame] | 831 | return -1; |
Jens Axboe | e46d809 | 2011-10-03 09:11:02 +0200 | [diff] [blame] | 832 | } else if (pid) |
| 833 | exit(0); |
| 834 | |
| 835 | setsid(); |
| 836 | close(STDIN_FILENO); |
| 837 | close(STDOUT_FILENO); |
| 838 | close(STDERR_FILENO); |
| 839 | f_out = NULL; |
| 840 | f_err = NULL; |
| 841 | log_syslog = 1; |
| 842 | return fio_server(); |
| 843 | } |
Jens Axboe | 87aa8f1 | 2011-10-06 21:24:13 +0200 | [diff] [blame] | 844 | |
| 845 | void fio_server_add_arg(const char *arg) |
| 846 | { |
| 847 | fio_server_arg = strdup(arg); |
| 848 | } |