X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=engines%2Fnet.c;h=4be106a28307e20db7ee26d315877b41d081ffec;hb=6611e9c767bad5c903c8ac59b9ae8409315dbca2;hp=8ef781103462ce4af9dcf2e9644ddc1e937550e6;hpb=ed92ac0ce9ce1cc64697272d307d4fa7d18ed64c;p=fio.git diff --git a/engines/net.c b/engines/net.c index 8ef78110..4be106a2 100644 --- a/engines/net.c +++ b/engines/net.c @@ -1,273 +1,1292 @@ /* - * Transfer data over the net. Pretty basic setup, will only support - * 1 file per thread/job. + * net engine + * + * IO engine that reads/writes to/from sockets. + * */ #include #include #include +#include #include #include #include +#include #include #include +#include +#include +#include +#include +#include #include "../fio.h" -#include "../os.h" -struct net_data { - int send_to_net; - struct io_u *last_io_u; +struct netio_data { + int listenfd; + int use_splice; + int pipes[2]; + struct sockaddr_in addr; + struct sockaddr_in6 addr6; + struct sockaddr_un addr_un; +}; + +struct netio_options { + struct thread_data *td; + unsigned int port; + unsigned int proto; + unsigned int listen; + unsigned int pingpong; + unsigned int nodelay; + unsigned int ttl; + char *intfc; +}; + +struct udp_close_msg { + uint32_t magic; + uint32_t cmd; +}; + +enum { + FIO_LINK_CLOSE = 0x89, + FIO_LINK_OPEN_CLOSE_MAGIC = 0x6c696e6b, + FIO_LINK_OPEN = 0x98, + + FIO_TYPE_TCP = 1, + FIO_TYPE_UDP = 2, + FIO_TYPE_UNIX = 3, + FIO_TYPE_TCP_V6 = 4, + FIO_TYPE_UDP_V6 = 5, +}; + +static int str_hostname_cb(void *data, const char *input); +static struct fio_option options[] = { + { + .name = "hostname", + .lname = "net engine hostname", + .type = FIO_OPT_STR_STORE, + .cb = str_hostname_cb, + .help = "Hostname for net IO engine", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = "port", + .lname = "net engine port", + .type = FIO_OPT_INT, + .off1 = offsetof(struct netio_options, port), + .minval = 1, + .maxval = 65535, + .help = "Port to use for TCP or UDP net connections", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = "protocol", + .lname = "net engine protocol", + .alias = "proto", + .type = FIO_OPT_STR, + .off1 = offsetof(struct netio_options, proto), + .help = "Network protocol to use", + .def = "tcp", + .posval = { + { .ival = "tcp", + .oval = FIO_TYPE_TCP, + .help = "Transmission Control Protocol", + }, + { .ival = "tcpv6", + .oval = FIO_TYPE_TCP_V6, + .help = "Transmission Control Protocol V6", + }, + { .ival = "udp", + .oval = FIO_TYPE_UDP, + .help = "User Datagram Protocol", + }, + { .ival = "udpv6", + .oval = FIO_TYPE_UDP_V6, + .help = "User Datagram Protocol V6", + }, + { .ival = "unix", + .oval = FIO_TYPE_UNIX, + .help = "UNIX domain socket", + }, + }, + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, +#ifdef CONFIG_TCP_NODELAY + { + .name = "nodelay", + .type = FIO_OPT_BOOL, + .off1 = offsetof(struct netio_options, nodelay), + .help = "Use TCP_NODELAY on TCP connections", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, +#endif + { + .name = "listen", + .lname = "net engine listen", + .type = FIO_OPT_STR_SET, + .off1 = offsetof(struct netio_options, listen), + .help = "Listen for incoming TCP connections", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = "pingpong", + .type = FIO_OPT_STR_SET, + .off1 = offsetof(struct netio_options, pingpong), + .help = "Ping-pong IO requests", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = "interface", + .lname = "net engine interface", + .type = FIO_OPT_STR_STORE, + .off1 = offsetof(struct netio_options, intfc), + .help = "Network interface to use", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = "ttl", + .lname = "net engine multicast ttl", + .type = FIO_OPT_INT, + .off1 = offsetof(struct netio_options, ttl), + .def = "1", + .minval = 0, + .help = "Time-to-live value for outgoing UDP multicast packets", + .category = FIO_OPT_C_ENGINE, + .group = FIO_OPT_G_NETIO, + }, + { + .name = NULL, + }, }; -static int fio_netio_getevents(struct thread_data *td, int fio_unused min, - int max, struct timespec fio_unused *t) +static inline int is_udp(struct netio_options *o) +{ + return o->proto == FIO_TYPE_UDP || o->proto == FIO_TYPE_UDP_V6; +} + +static inline int is_tcp(struct netio_options *o) +{ + return o->proto == FIO_TYPE_TCP || o->proto == FIO_TYPE_TCP_V6; +} + +static inline int is_ipv6(struct netio_options *o) +{ + return o->proto == FIO_TYPE_UDP_V6 || o->proto == FIO_TYPE_TCP_V6; +} + +/* + * Return -1 for error and 'nr events' for a positive number + * of events + */ +static int poll_wait(struct thread_data *td, int fd, short events) +{ + struct pollfd pfd; + int ret; + + while (!td->terminate) { + pfd.fd = fd; + pfd.events = events; + ret = poll(&pfd, 1, -1); + if (ret < 0) { + if (errno == EINTR) + break; + + td_verror(td, errno, "poll"); + return -1; + } else if (!ret) + continue; + + break; + } + + if (pfd.revents & events) + return 1; + + return -1; +} + +static int fio_netio_is_multicast(const char *mcaddr) +{ + in_addr_t addr = inet_network(mcaddr); + if (addr == -1) + return 0; + + if (inet_network("224.0.0.0") <= addr && + inet_network("239.255.255.255") >= addr) + return 1; + + return 0; +} + + +static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) { - assert(max <= 1); + struct netio_options *o = td->eo; /* - * we can only have one finished io_u for sync io, since the depth - * is always 1 + * Make sure we don't see spurious reads to a receiver, and vice versa */ - if (list_empty(&td->io_u_busylist)) + if (is_tcp(o)) + return 0; + + if ((o->listen && io_u->ddir == DDIR_WRITE) || + (!o->listen && io_u->ddir == DDIR_READ)) { + td_verror(td, EINVAL, "bad direction"); + return 1; + } + + return 0; +} + +#ifdef CONFIG_LINUX_SPLICE +static int splice_io_u(int fdin, int fdout, unsigned int len) +{ + int bytes = 0; + + while (len) { + int ret = splice(fdin, NULL, fdout, NULL, len, 0); + + if (ret < 0) { + if (!bytes) + bytes = ret; + + break; + } else if (!ret) + break; + + bytes += ret; + len -= ret; + } + + return bytes; +} + +/* + * Receive bytes from a socket and fill them into the internal pipe + */ +static int splice_in(struct thread_data *td, struct io_u *io_u) +{ + struct netio_data *nd = td->io_ops->data; + + return splice_io_u(io_u->file->fd, nd->pipes[1], io_u->xfer_buflen); +} + +/* + * Transmit 'len' bytes from the internal pipe + */ +static int splice_out(struct thread_data *td, struct io_u *io_u, + unsigned int len) +{ + struct netio_data *nd = td->io_ops->data; + + return splice_io_u(nd->pipes[0], io_u->file->fd, len); +} + +static int vmsplice_io_u(struct io_u *io_u, int fd, unsigned int len) +{ + struct iovec iov = { + .iov_base = io_u->xfer_buf, + .iov_len = len, + }; + int bytes = 0; + + while (iov.iov_len) { + int ret = vmsplice(fd, &iov, 1, SPLICE_F_MOVE); + + if (ret < 0) { + if (!bytes) + bytes = ret; + break; + } else if (!ret) + break; + + iov.iov_len -= ret; + iov.iov_base += ret; + bytes += ret; + } + + return bytes; + +} + +/* + * vmsplice() pipe to io_u buffer + */ +static int vmsplice_io_u_out(struct thread_data *td, struct io_u *io_u, + unsigned int len) +{ + struct netio_data *nd = td->io_ops->data; + + return vmsplice_io_u(io_u, nd->pipes[0], len); +} + +/* + * vmsplice() io_u to pipe + */ +static int vmsplice_io_u_in(struct thread_data *td, struct io_u *io_u) +{ + struct netio_data *nd = td->io_ops->data; + + return vmsplice_io_u(io_u, nd->pipes[1], io_u->xfer_buflen); +} + +/* + * splice receive - transfer socket data into a pipe using splice, then map + * that pipe data into the io_u using vmsplice. + */ +static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) +{ + int ret; + + ret = splice_in(td, io_u); + if (ret > 0) + return vmsplice_io_u_out(td, io_u, ret); + + return ret; +} + +/* + * splice transmit - map data from the io_u into a pipe by using vmsplice, + * then transfer that pipe to a socket using splice. + */ +static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) +{ + int ret; + + ret = vmsplice_io_u_in(td, io_u); + if (ret > 0) + return splice_out(td, io_u, ret); + + return ret; +} +#else +static int fio_netio_splice_in(struct thread_data *td, struct io_u *io_u) +{ + errno = EOPNOTSUPP; + return -1; +} + +static int fio_netio_splice_out(struct thread_data *td, struct io_u *io_u) +{ + errno = EOPNOTSUPP; + return -1; +} +#endif + +static int fio_netio_send(struct thread_data *td, struct io_u *io_u) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + int ret, flags = 0; + + do { + if (is_udp(o)) { + struct sockaddr *to; + socklen_t len; + + if (is_ipv6(o)) { + to = (struct sockaddr *) &nd->addr6; + len = sizeof(nd->addr6); + } else { + to = (struct sockaddr *) &nd->addr; + len = sizeof(nd->addr); + } + + ret = sendto(io_u->file->fd, io_u->xfer_buf, + io_u->xfer_buflen, flags, to, len); + } else { + /* + * if we are going to write more, set MSG_MORE + */ +#ifdef MSG_MORE + if ((td->this_io_bytes[DDIR_WRITE] + io_u->xfer_buflen < + td->o.size) && !o->pingpong) + flags |= MSG_MORE; +#endif + ret = send(io_u->file->fd, io_u->xfer_buf, + io_u->xfer_buflen, flags); + } + if (ret > 0) + break; + + ret = poll_wait(td, io_u->file->fd, POLLOUT); + if (ret <= 0) + break; + } while (1); + + return ret; +} + +static int is_udp_close(struct io_u *io_u, int len) +{ + struct udp_close_msg *msg; + + if (len != sizeof(struct udp_close_msg)) + return 0; + + msg = io_u->xfer_buf; + if (ntohl(msg->magic) != FIO_LINK_OPEN_CLOSE_MAGIC) + return 0; + if (ntohl(msg->cmd) != FIO_LINK_CLOSE) return 0; return 1; } -static struct io_u *fio_netio_event(struct thread_data *td, int event) +static int fio_netio_recv(struct thread_data *td, struct io_u *io_u) { - struct net_data *nd = td->io_ops->data; + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + int ret, flags = 0; + + do { + if (is_udp(o)) { + struct sockaddr *from; + socklen_t l, *len = &l; + + if (o->listen) { + if (!is_ipv6(o)) { + from = (struct sockaddr *) &nd->addr; + *len = sizeof(nd->addr); + } else { + from = (struct sockaddr *) &nd->addr6; + *len = sizeof(nd->addr6); + } + } else { + from = NULL; + len = NULL; + } - assert(event == 0); + ret = recvfrom(io_u->file->fd, io_u->xfer_buf, + io_u->xfer_buflen, flags, from, len); + if (is_udp_close(io_u, ret)) { + td->done = 1; + return 0; + } + } else { + ret = recv(io_u->file->fd, io_u->xfer_buf, + io_u->xfer_buflen, flags); + } + if (ret > 0) + break; + else if (!ret && (flags & MSG_WAITALL)) + break; + + ret = poll_wait(td, io_u->file->fd, POLLIN); + if (ret <= 0) + break; + flags |= MSG_WAITALL; + } while (1); - return nd->last_io_u; + return ret; } -static int fio_netio_prep(struct thread_data *td, struct io_u *io_u) +static int __fio_netio_queue(struct thread_data *td, struct io_u *io_u, + enum fio_ddir ddir) { - struct net_data *nd = td->io_ops->data; - struct fio_file *f = io_u->file; + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + int ret; - if (nd->send_to_net) { - if (io_u->ddir == DDIR_READ) { - td_verror(td, EINVAL); - return 1; + if (ddir == DDIR_WRITE) { + if (!nd->use_splice || is_udp(o) || + o->proto == FIO_TYPE_UNIX) + ret = fio_netio_send(td, io_u); + else + ret = fio_netio_splice_out(td, io_u); + } else if (ddir == DDIR_READ) { + if (!nd->use_splice || is_udp(o) || + o->proto == FIO_TYPE_UNIX) + ret = fio_netio_recv(td, io_u); + else + ret = fio_netio_splice_in(td, io_u); + } else + ret = 0; /* must be a SYNC */ + + if (ret != (int) io_u->xfer_buflen) { + if (ret >= 0) { + io_u->resid = io_u->xfer_buflen - ret; + io_u->error = 0; + return FIO_Q_COMPLETED; + } else { + int err = errno; + + if (ddir == DDIR_WRITE && err == EMSGSIZE) + return FIO_Q_BUSY; + + io_u->error = err; } + } + + if (io_u->error) + td_verror(td, io_u->error, "xfer"); + + return FIO_Q_COMPLETED; +} + +static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) +{ + struct netio_options *o = td->eo; + int ret; + + fio_ro_check(td, io_u); + + ret = __fio_netio_queue(td, io_u, io_u->ddir); + if (!o->pingpong || ret != FIO_Q_COMPLETED) + return ret; + + /* + * For ping-pong mode, receive or send reply as needed + */ + if (td_read(td) && io_u->ddir == DDIR_READ) + ret = __fio_netio_queue(td, io_u, DDIR_WRITE); + else if (td_write(td) && io_u->ddir == DDIR_WRITE) + ret = __fio_netio_queue(td, io_u, DDIR_READ); + + return ret; +} + +static int fio_netio_connect(struct thread_data *td, struct fio_file *f) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + int type, domain; + + if (o->proto == FIO_TYPE_TCP) { + domain = AF_INET; + type = SOCK_STREAM; + } else if (o->proto == FIO_TYPE_TCP_V6) { + domain = AF_INET6; + type = SOCK_STREAM; + } else if (o->proto == FIO_TYPE_UDP) { + domain = AF_INET; + type = SOCK_DGRAM; + } else if (o->proto == FIO_TYPE_UDP_V6) { + domain = AF_INET6; + type = SOCK_DGRAM; + } else if (o->proto == FIO_TYPE_UNIX) { + domain = AF_UNIX; + type = SOCK_STREAM; } else { - if (io_u->ddir == DDIR_WRITE) { - td_verror(td, EINVAL); + log_err("fio: bad network type %d\n", o->proto); + f->fd = -1; + return 1; + } + + f->fd = socket(domain, type, 0); + if (f->fd < 0) { + td_verror(td, errno, "socket"); + return 1; + } + +#ifdef CONFIG_TCP_NODELAY + if (o->nodelay && is_tcp(o)) { + int optval = 1; + + if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { + log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); return 1; } } +#endif - if (io_u->ddir == DDIR_SYNC) + if (is_udp(o)) { + if (!fio_netio_is_multicast(td->o.filename)) + return 0; + if (is_ipv6(o)) { + log_err("fio: multicast not supported on IPv6\n"); + close(f->fd); + return 1; + } + + if (o->intfc) { + struct in_addr interface_addr; + + if (inet_aton(o->intfc, &interface_addr) == 0) { + log_err("fio: interface not valid interface IP\n"); + close(f->fd); + return 1; + } + if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_IF, (const char*)&interface_addr, sizeof(interface_addr)) < 0) { + td_verror(td, errno, "setsockopt IP_MULTICAST_IF"); + close(f->fd); + return 1; + } + } + if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_TTL, (const char*)&o->ttl, sizeof(o->ttl)) < 0) { + td_verror(td, errno, "setsockopt IP_MULTICAST_TTL"); + close(f->fd); + return 1; + } return 0; - if (io_u->offset == f->last_completed_pos) + } else if (o->proto == FIO_TYPE_TCP) { + socklen_t len = sizeof(nd->addr); + + if (connect(f->fd, (struct sockaddr *) &nd->addr, len) < 0) { + td_verror(td, errno, "connect"); + close(f->fd); + return 1; + } + } else if (o->proto == FIO_TYPE_TCP_V6) { + socklen_t len = sizeof(nd->addr6); + + if (connect(f->fd, (struct sockaddr *) &nd->addr6, len) < 0) { + td_verror(td, errno, "connect"); + close(f->fd); + return 1; + } + + } else { + struct sockaddr_un *addr = &nd->addr_un; + socklen_t len; + + len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1; + + if (connect(f->fd, (struct sockaddr *) addr, len) < 0) { + td_verror(td, errno, "connect"); + close(f->fd); + return 1; + } + } + + return 0; +} + +static int fio_netio_accept(struct thread_data *td, struct fio_file *f) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + socklen_t socklen; + int state; + + if (is_udp(o)) { + f->fd = nd->listenfd; return 0; + } + + state = td->runstate; + td_set_runstate(td, TD_SETTING_UP); + + log_info("fio: waiting for connection\n"); + + if (poll_wait(td, nd->listenfd, POLLIN) < 0) + goto err; + + if (o->proto == FIO_TYPE_TCP) { + socklen = sizeof(nd->addr); + f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr, &socklen); + } else { + socklen = sizeof(nd->addr6); + f->fd = accept(nd->listenfd, (struct sockaddr *) &nd->addr6, &socklen); + } + + if (f->fd < 0) { + td_verror(td, errno, "accept"); + goto err; + } + +#ifdef CONFIG_TCP_NODELAY + if (o->nodelay && is_tcp(o)) { + int optval = 1; + + if (setsockopt(f->fd, IPPROTO_TCP, TCP_NODELAY, (void *) &optval, sizeof(int)) < 0) { + log_err("fio: cannot set TCP_NODELAY option on socket (%s), disable with 'nodelay=0'\n", strerror(errno)); + return 1; + } + } +#endif - td_verror(td, EINVAL); + reset_all_stats(td); + td_set_runstate(td, state); + return 0; +err: + td_set_runstate(td, state); return 1; } -static int fio_netio_queue(struct thread_data *td, struct io_u *io_u) +static void fio_netio_udp_close(struct thread_data *td, struct fio_file *f) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + struct udp_close_msg msg; + struct sockaddr *to; + socklen_t len; + int ret; + + if (is_ipv6(o)) { + to = (struct sockaddr *) &nd->addr6; + len = sizeof(nd->addr6); + } else { + to = (struct sockaddr *) &nd->addr; + len = sizeof(nd->addr); + } + + msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); + msg.cmd = htonl(FIO_LINK_CLOSE); + + ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len); + if (ret < 0) + td_verror(td, errno, "sendto udp link close"); +} + +static int fio_netio_close_file(struct thread_data *td, struct fio_file *f) +{ + struct netio_options *o = td->eo; + + /* + * If this is an UDP connection, notify the receiver that we are + * closing down the link + */ + if (is_udp(o)) + fio_netio_udp_close(td, f); + + return generic_close_file(td, f); +} + +static int fio_netio_udp_recv_open(struct thread_data *td, struct fio_file *f) { - struct net_data *nd = td->io_ops->data; - struct fio_file *f = io_u->file; - unsigned int ret = 0; + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + struct udp_close_msg msg; + struct sockaddr *to; + socklen_t len; + int ret; - if (io_u->ddir == DDIR_WRITE) - ret = write(f->fd, io_u->buf, io_u->buflen); - else if (io_u->ddir == DDIR_READ) - ret = read(f->fd, io_u->buf, io_u->buflen); + if (is_ipv6(o)) { + len = sizeof(nd->addr6); + to = (struct sockaddr *) &nd->addr6; + } else { + len = sizeof(nd->addr); + to = (struct sockaddr *) &nd->addr; + } - if (ret != io_u->buflen) { - if (ret > 0) { - io_u->resid = io_u->buflen - ret; - io_u->error = EIO; - } else - io_u->error = errno; + ret = recvfrom(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, &len); + if (ret < 0) { + td_verror(td, errno, "recvfrom udp link open"); + return ret; } - if (!io_u->error) - nd->last_io_u = io_u; + if (ntohl(msg.magic) != FIO_LINK_OPEN_CLOSE_MAGIC || + ntohl(msg.cmd) != FIO_LINK_OPEN) { + log_err("fio: bad udp open magic %x/%x\n", ntohl(msg.magic), + ntohl(msg.cmd)); + return -1; + } - return io_u->error; + return 0; } -static int fio_netio_setup_connect(struct thread_data *td, const char *host, - const char *port) +static int fio_netio_udp_send_open(struct thread_data *td, struct fio_file *f) { - struct sockaddr_in addr; - struct fio_file *f; + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + struct udp_close_msg msg; + struct sockaddr *to; + socklen_t len; + int ret; - memset(&addr, 0, sizeof(addr)); - addr.sin_family = AF_INET; - addr.sin_port = htons(atoi(port)); + if (is_ipv6(o)) { + len = sizeof(nd->addr6); + to = (struct sockaddr *) &nd->addr6; + } else { + len = sizeof(nd->addr); + to = (struct sockaddr *) &nd->addr; + } - if (inet_aton(host, &addr.sin_addr) != 1) { - struct hostent *hent = gethostbyname(host); + msg.magic = htonl(FIO_LINK_OPEN_CLOSE_MAGIC); + msg.cmd = htonl(FIO_LINK_OPEN); - if (!hent) { - td_vmsg(td, errno, "gethostbyname"); - return 1; + ret = sendto(f->fd, (void *) &msg, sizeof(msg), MSG_WAITALL, to, len); + if (ret < 0) { + td_verror(td, errno, "sendto udp link open"); + return ret; + } + + return 0; +} + +static int fio_netio_open_file(struct thread_data *td, struct fio_file *f) +{ + int ret; + struct netio_options *o = td->eo; + + if (o->listen) + ret = fio_netio_accept(td, f); + else + ret = fio_netio_connect(td, f); + + if (ret) { + f->fd = -1; + return ret; + } + + if (is_udp(o)) { + if (td_write(td)) + ret = fio_netio_udp_send_open(td, f); + else { + int state; + + state = td->runstate; + td_set_runstate(td, TD_SETTING_UP); + ret = fio_netio_udp_recv_open(td, f); + td_set_runstate(td, state); } + } + + if (ret) + fio_netio_close_file(td, f); + + return ret; +} + +static int fio_fill_addr(struct thread_data *td, const char *host, int af, + void *dst, struct addrinfo **res) +{ + struct netio_options *o = td->eo; + struct addrinfo hints; + int ret; + + if (inet_pton(af, host, dst)) + return 0; + + memset(&hints, 0, sizeof(hints)); + + if (is_tcp(o)) + hints.ai_socktype = SOCK_STREAM; + else + hints.ai_socktype = SOCK_DGRAM; + + if (is_ipv6(o)) + hints.ai_family = AF_INET6; + else + hints.ai_family = AF_INET; - memcpy(&addr.sin_addr, hent->h_addr, 4); + ret = getaddrinfo(host, NULL, &hints, res); + if (ret) { + int e = EINVAL; + char str[128]; + + if (ret == EAI_SYSTEM) + e = errno; + + snprintf(str, sizeof(str), "getaddrinfo: %s", gai_strerror(ret)); + td_verror(td, e, str); + return 1; } - f = &td->files[0]; + return 0; +} - f->fd = socket(AF_INET, SOCK_STREAM, 0); - if (f->fd < 0) { - td_vmsg(td, errno, "socket"); +static int fio_netio_setup_connect_inet(struct thread_data *td, + const char *host, unsigned short port) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + struct addrinfo *res = NULL; + void *dst, *src; + int af, len; + + if (!host) { + log_err("fio: connect with no host to connect to.\n"); + if (td_read(td)) + log_err("fio: did you forget to set 'listen'?\n"); + + td_verror(td, EINVAL, "no hostname= set"); return 1; } - if (connect(f->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { - td_vmsg(td, errno, "connect"); + nd->addr.sin_family = AF_INET; + nd->addr.sin_port = htons(port); + nd->addr6.sin6_family = AF_INET6; + nd->addr6.sin6_port = htons(port); + + if (is_ipv6(o)) { + af = AF_INET6; + dst = &nd->addr6; + } else { + af = AF_INET; + dst = &nd->addr; + } + + if (fio_fill_addr(td, host, af, dst, &res)) return 1; + + if (!res) + return 0; + + if (is_ipv6(o)) { + len = sizeof(nd->addr6.sin6_addr); + src = &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr; + } else { + len = sizeof(nd->addr.sin_addr); + src = &((struct sockaddr_in *) res->ai_addr)->sin_addr; } + memcpy(dst, src, len); + freeaddrinfo(res); return 0; +} +static int fio_netio_setup_connect_unix(struct thread_data *td, + const char *path) +{ + struct netio_data *nd = td->io_ops->data; + struct sockaddr_un *soun = &nd->addr_un; + + soun->sun_family = AF_UNIX; + strcpy(soun->sun_path, path); + return 0; } -static int fio_netio_setup_listen(struct thread_data *td, const char *port) +static int fio_netio_setup_connect(struct thread_data *td) { - struct sockaddr_in addr; - socklen_t socklen; - int fd, opt; + struct netio_options *o = td->eo; - fd = socket(AF_INET, SOCK_STREAM, 0); + if (is_udp(o) || is_tcp(o)) + return fio_netio_setup_connect_inet(td, td->o.filename,o->port); + else + return fio_netio_setup_connect_unix(td, td->o.filename); +} + +static int fio_netio_setup_listen_unix(struct thread_data *td, const char *path) +{ + struct netio_data *nd = td->io_ops->data; + struct sockaddr_un *addr = &nd->addr_un; + mode_t mode; + int len, fd; + + fd = socket(AF_UNIX, SOCK_STREAM, 0); if (fd < 0) { - td_vmsg(td, errno, "socket"); - return 1; + log_err("fio: socket: %s\n", strerror(errno)); + return -1; } - opt = 1; - if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { - td_vmsg(td, errno, "setsockopt"); + mode = umask(000); + + memset(addr, 0, sizeof(*addr)); + addr->sun_family = AF_UNIX; + strcpy(addr->sun_path, path); + unlink(path); + + len = sizeof(addr->sun_family) + strlen(path) + 1; + + if (bind(fd, (struct sockaddr *) addr, len) < 0) { + log_err("fio: bind: %s\n", strerror(errno)); + close(fd); + return -1; + } + + umask(mode); + nd->listenfd = fd; + return 0; +} + +static int fio_netio_setup_listen_inet(struct thread_data *td, short port) +{ + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; + struct ip_mreq mr; + struct sockaddr_in sin; + struct sockaddr_in6 sin6; + struct sockaddr *saddr; + int fd, opt, type, domain; + socklen_t len; + + memset(&sin, 0, sizeof(sin)); + memset(&sin6, 0, sizeof(sin6)); + + if (o->proto == FIO_TYPE_TCP) { + type = SOCK_STREAM; + domain = AF_INET; + } else if (o->proto == FIO_TYPE_TCP_V6) { + type = SOCK_STREAM; + domain = AF_INET6; + } else if (o->proto == FIO_TYPE_UDP) { + type = SOCK_DGRAM; + domain = AF_INET; + } else if (o->proto == FIO_TYPE_UDP_V6) { + type = SOCK_DGRAM; + domain = AF_INET6; + } else { + log_err("fio: unknown proto %d\n", o->proto); return 1; } - memset(&addr, 0, sizeof(addr)); - addr.sin_family = AF_INET; - addr.sin_addr.s_addr = htonl(INADDR_ANY); - addr.sin_port = htons(atoi(port)); + fd = socket(domain, type, 0); + if (fd < 0) { + td_verror(td, errno, "socket"); + return 1; + } - if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { - td_vmsg(td, errno, "bind"); + opt = 1; + if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *) &opt, sizeof(opt)) < 0) { + td_verror(td, errno, "setsockopt"); + close(fd); return 1; } - if (listen(fd, 1) < 0) { - td_vmsg(td, errno, "listen"); +#ifdef SO_REUSEPORT + if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *) &opt, sizeof(opt)) < 0) { + td_verror(td, errno, "setsockopt"); + close(fd); return 1; } +#endif + + if (td->o.filename) { + if (!is_udp(o) || !fio_netio_is_multicast(td->o.filename)) { + log_err("fio: hostname not valid for non-multicast inbound network IO\n"); + close(fd); + return 1; + } + if (is_ipv6(o)) { + log_err("fio: IPv6 not supported for multicast network IO"); + close(fd); + return 1; + } + + inet_aton(td->o.filename, &sin.sin_addr); + + mr.imr_multiaddr = sin.sin_addr; + if (o->intfc) { + if (inet_aton(o->intfc, &mr.imr_interface) == 0) { + log_err("fio: interface not valid interface IP\n"); + close(fd); + return 1; + } + } else { + mr.imr_interface.s_addr = htonl(INADDR_ANY); + } + + if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char*)&mr, sizeof(mr)) < 0) { + td_verror(td, errno, "setsockopt IP_ADD_MEMBERSHIP"); + close(fd); + return 1; + } + } + + if (!is_ipv6(o)) { + saddr = (struct sockaddr *) &nd->addr; + len = sizeof(nd->addr); + + nd->addr.sin_family = AF_INET; + nd->addr.sin_addr.s_addr = sin.sin_addr.s_addr ? sin.sin_addr.s_addr : htonl(INADDR_ANY); + nd->addr.sin_port = htons(port); + } else { + saddr = (struct sockaddr *) &nd->addr6; + len = sizeof(nd->addr6); + + nd->addr6.sin6_family = AF_INET6; + nd->addr6.sin6_addr = sin6.sin6_addr.s6_addr ? sin6.sin6_addr : in6addr_any; + nd->addr6.sin6_port = htons(port); + } - socklen = sizeof(addr); - td->files[0].fd = accept(fd, (struct sockaddr *) &addr, &socklen); - if (td->files[0].fd < 0) { - td_vmsg(td, errno, "accept"); + if (bind(fd, saddr, len) < 0) { + td_verror(td, errno, "bind"); return 1; } + nd->listenfd = fd; return 0; } -static int fio_netio_setup(struct thread_data *td) +static int fio_netio_setup_listen(struct thread_data *td) { - char host[64], port[64], buf[128]; - struct net_data *nd; - char *sep; + struct netio_data *nd = td->io_ops->data; + struct netio_options *o = td->eo; int ret; - /* - * work around for late init call - */ - if (td->io_ops->init(td)) - return 1; + if (is_udp(o) || is_tcp(o)) + ret = fio_netio_setup_listen_inet(td, o->port); + else + ret = fio_netio_setup_listen_unix(td, td->o.filename); - nd = td->io_ops->data; + if (ret) + return ret; + if (is_udp(o)) + return 0; - if (td->iomix) { - log_err("fio: network connections must be read OR write\n"); - return 1; - } - if (td->nr_files > 1) { - log_err("fio: only one file supported for network\n"); + if (listen(nd->listenfd, 10) < 0) { + td_verror(td, errno, "listen"); + nd->listenfd = -1; return 1; } - strcpy(buf, td->filename); + return 0; +} - sep = strchr(buf, ':'); - if (!sep) { - log_err("fio: bad network host:port <<%s>>\n", td->filename); +static int fio_netio_init(struct thread_data *td) +{ + struct netio_options *o = td->eo; + int ret; + +#ifdef WIN32 + WSADATA wsd; + WSAStartup(MAKEWORD(2,2), &wsd); +#endif + + if (td_random(td)) { + log_err("fio: network IO can't be random\n"); return 1; } - *sep = '\0'; - sep++; - strcpy(host, buf); - strcpy(port, sep); - - if (td->ddir == READ) { - nd->send_to_net = 0; - ret = fio_netio_setup_listen(td, port); - } else { - nd->send_to_net = 1; - ret = fio_netio_setup_connect(td, host, port); + if (o->proto == FIO_TYPE_UNIX && o->port) { + log_err("fio: network IO port not valid with unix socket\n"); + return 1; + } else if (o->proto != FIO_TYPE_UNIX && !o->port) { + log_err("fio: network IO requires port for tcp or udp\n"); + return 1; } - if (!ret) { - td->io_size = td->total_file_size; - td->total_io_size = td->io_size; - td->files[0].real_file_size = td->io_size; + if (!is_tcp(o)) { + if (o->listen) { + log_err("fio: listen only valid for TCP proto IO\n"); + return 1; + } + if (td_rw(td)) { + log_err("fio: datagram network connections must be" + " read OR write\n"); + return 1; + } + if (o->proto == FIO_TYPE_UNIX && !td->o.filename) { + log_err("fio: UNIX sockets need host/filename\n"); + return 1; + } + o->listen = td_read(td); } + if (o->listen) + ret = fio_netio_setup_listen(td); + else + ret = fio_netio_setup_connect(td); + return ret; } static void fio_netio_cleanup(struct thread_data *td) { - if (td->io_ops->data) { - free(td->io_ops->data); - td->io_ops->data = NULL; + struct netio_data *nd = td->io_ops->data; + + if (nd) { + if (nd->listenfd != -1) + close(nd->listenfd); + if (nd->pipes[0] != -1) + close(nd->pipes[0]); + if (nd->pipes[1] != -1) + close(nd->pipes[1]); + + free(nd); } } -static int fio_netio_init(struct thread_data *td) +static int fio_netio_setup(struct thread_data *td) { - struct net_data *nd; + struct netio_data *nd; - if (td->io_ops->data) - return 0; + if (!td->files_index) { + add_file(td, td->o.filename ?: "net"); + td->o.nr_files = td->o.nr_files ?: 1; + } + + if (!td->io_ops->data) { + nd = malloc(sizeof(*nd));; + + memset(nd, 0, sizeof(*nd)); + nd->listenfd = -1; + nd->pipes[0] = nd->pipes[1] = -1; + td->io_ops->data = nd; + } - nd = malloc(sizeof(*nd)); - nd->last_io_u = NULL; - td->io_ops->data = nd; return 0; } -static struct ioengine_ops ioengine = { - .name = "net", - .version = FIO_IOOPS_VERSION, - .init = fio_netio_init, - .prep = fio_netio_prep, - .queue = fio_netio_queue, - .getevents = fio_netio_getevents, - .event = fio_netio_event, - .cleanup = fio_netio_cleanup, - .setup = fio_netio_setup, - .flags = FIO_SYNCIO | FIO_NETIO, +static void fio_netio_terminate(struct thread_data *td) +{ + kill(td->pid, SIGUSR2); +} + +#ifdef CONFIG_LINUX_SPLICE +static int fio_netio_setup_splice(struct thread_data *td) +{ + struct netio_data *nd; + + fio_netio_setup(td); + + nd = td->io_ops->data; + if (nd) { + if (pipe(nd->pipes) < 0) + return 1; + + nd->use_splice = 1; + return 0; + } + + return 1; +} + +static struct ioengine_ops ioengine_splice = { + .name = "netsplice", + .version = FIO_IOOPS_VERSION, + .prep = fio_netio_prep, + .queue = fio_netio_queue, + .setup = fio_netio_setup_splice, + .init = fio_netio_init, + .cleanup = fio_netio_cleanup, + .open_file = fio_netio_open_file, + .close_file = fio_netio_close_file, + .terminate = fio_netio_terminate, + .options = options, + .option_struct_size = sizeof(struct netio_options), + .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | + FIO_PIPEIO, +}; +#endif + +static struct ioengine_ops ioengine_rw = { + .name = "net", + .version = FIO_IOOPS_VERSION, + .prep = fio_netio_prep, + .queue = fio_netio_queue, + .setup = fio_netio_setup, + .init = fio_netio_init, + .cleanup = fio_netio_cleanup, + .open_file = fio_netio_open_file, + .close_file = fio_netio_close_file, + .terminate = fio_netio_terminate, + .options = options, + .option_struct_size = sizeof(struct netio_options), + .flags = FIO_SYNCIO | FIO_DISKLESSIO | FIO_UNIDIR | + FIO_PIPEIO | FIO_BIT_BASED, }; +static int str_hostname_cb(void *data, const char *input) +{ + struct netio_options *o = data; + + if (o->td->o.filename) + free(o->td->o.filename); + o->td->o.filename = strdup(input); + return 0; +} + static void fio_init fio_netio_register(void) { - register_ioengine(&ioengine); + register_ioengine(&ioengine_rw); +#ifdef CONFIG_LINUX_SPLICE + register_ioengine(&ioengine_splice); +#endif } static void fio_exit fio_netio_unregister(void) { - unregister_ioengine(&ioengine); + unregister_ioengine(&ioengine_rw); +#ifdef CONFIG_LINUX_SPLICE + unregister_ioengine(&ioengine_splice); +#endif }