2 * Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
3 * 2005-2007 Takahiro Hirofuchi
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #include <sys/socket.h>
23 #include <arpa/inet.h>
25 #include <netinet/tcp.h>
28 #include "usbip_common.h"
29 #include "usbip_network.h"
31 int usbip_port = 3240;
32 char *usbip_port_string = "3240";
34 void usbip_setup_port_number(char *arg)
36 dbg("parsing port arg '%s'", arg);
38 unsigned long int port = strtoul(arg, &end, 10);
41 err("port: could not parse '%s' as a decimal integer", arg);
46 err("port: garbage at end of '%s'", arg);
50 if (port > UINT16_MAX) {
51 err("port: %s too high (max=%d)",
57 usbip_port_string = arg;
58 info("using port %d (\"%s\")", usbip_port, usbip_port_string);
61 void usbip_net_pack_uint32_t(int pack, uint32_t *num)
73 void usbip_net_pack_uint16_t(int pack, uint16_t *num)
85 void usbip_net_pack_usb_device(int pack, struct usbip_usb_device *udev)
87 usbip_net_pack_uint32_t(pack, &udev->busnum);
88 usbip_net_pack_uint32_t(pack, &udev->devnum);
89 usbip_net_pack_uint32_t(pack, &udev->speed);
91 usbip_net_pack_uint16_t(pack, &udev->idVendor);
92 usbip_net_pack_uint16_t(pack, &udev->idProduct);
93 usbip_net_pack_uint16_t(pack, &udev->bcdDevice);
96 void usbip_net_pack_usb_interface(int pack __attribute__((unused)),
97 struct usbip_usb_interface *udev
98 __attribute__((unused)))
100 /* uint8_t members need nothing */
103 static ssize_t usbip_net_xmit(int sockfd, void *buff, size_t bufflen,
114 nbytes = send(sockfd, buff, bufflen, 0);
116 nbytes = recv(sockfd, buff, bufflen, MSG_WAITALL);
121 buff = (void *)((intptr_t) buff + nbytes);
125 } while (bufflen > 0);
130 ssize_t usbip_net_recv(int sockfd, void *buff, size_t bufflen)
132 return usbip_net_xmit(sockfd, buff, bufflen, 0);
135 ssize_t usbip_net_send(int sockfd, void *buff, size_t bufflen)
137 return usbip_net_xmit(sockfd, buff, bufflen, 1);
140 int usbip_net_send_op_common(int sockfd, uint32_t code, uint32_t status)
142 struct op_common op_common;
145 memset(&op_common, 0, sizeof(op_common));
147 op_common.version = USBIP_VERSION;
148 op_common.code = code;
149 op_common.status = status;
151 PACK_OP_COMMON(1, &op_common);
153 rc = usbip_net_send(sockfd, &op_common, sizeof(op_common));
155 dbg("usbip_net_send failed: %d", rc);
162 int usbip_net_recv_op_common(int sockfd, uint16_t *code)
164 struct op_common op_common;
167 memset(&op_common, 0, sizeof(op_common));
169 rc = usbip_net_recv(sockfd, &op_common, sizeof(op_common));
171 dbg("usbip_net_recv failed: %d", rc);
175 PACK_OP_COMMON(0, &op_common);
177 if (op_common.version != USBIP_VERSION) {
178 dbg("version mismatch: %d %d", op_common.version,
187 if (op_common.code != *code) {
188 dbg("unexpected pdu %#0x for %#0x", op_common.code,
194 if (op_common.status != ST_OK) {
195 dbg("request failed at peer: %d", op_common.status);
199 *code = op_common.code;
206 int usbip_net_set_reuseaddr(int sockfd)
211 ret = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
213 dbg("setsockopt: SO_REUSEADDR");
218 int usbip_net_set_nodelay(int sockfd)
223 ret = setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
225 dbg("setsockopt: TCP_NODELAY");
230 int usbip_net_set_keepalive(int sockfd)
235 ret = setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val));
237 dbg("setsockopt: SO_KEEPALIVE");
245 int usbip_net_tcp_connect(char *hostname, char *service)
247 struct addrinfo hints, *res, *rp;
251 memset(&hints, 0, sizeof(hints));
252 hints.ai_family = AF_UNSPEC;
253 hints.ai_socktype = SOCK_STREAM;
255 /* get all possible addresses */
256 ret = getaddrinfo(hostname, service, &hints, &res);
258 dbg("getaddrinfo: %s service %s: %s", hostname, service,
263 /* try the addresses */
264 for (rp = res; rp; rp = rp->ai_next) {
265 sockfd = socket(rp->ai_family, rp->ai_socktype,
270 /* should set TCP_NODELAY for usbip */
271 usbip_net_set_nodelay(sockfd);
272 /* TODO: write code for heartbeat */
273 usbip_net_set_keepalive(sockfd);
275 if (connect(sockfd, rp->ai_addr, rp->ai_addrlen) == 0)