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 void usbip_net_pack_uint32_t(int pack, uint32_t *num)
43 void usbip_net_pack_uint16_t(int pack, uint16_t *num)
55 void usbip_net_pack_usb_device(int pack, struct usbip_usb_device *udev)
57 usbip_net_pack_uint32_t(pack, &udev->busnum);
58 usbip_net_pack_uint32_t(pack, &udev->devnum);
59 usbip_net_pack_uint32_t(pack, &udev->speed);
61 usbip_net_pack_uint16_t(pack, &udev->idVendor);
62 usbip_net_pack_uint16_t(pack, &udev->idProduct);
63 usbip_net_pack_uint16_t(pack, &udev->bcdDevice);
66 void usbip_net_pack_usb_interface(int pack __attribute__((unused)),
67 struct usbip_usb_interface *udev
68 __attribute__((unused)))
70 /* uint8_t members need nothing */
73 static ssize_t usbip_net_xmit(int sockfd, void *buff, size_t bufflen,
84 nbytes = send(sockfd, buff, bufflen, 0);
86 nbytes = recv(sockfd, buff, bufflen, MSG_WAITALL);
91 buff = (void *)((intptr_t) buff + nbytes);
95 } while (bufflen > 0);
100 ssize_t usbip_net_recv(int sockfd, void *buff, size_t bufflen)
102 return usbip_net_xmit(sockfd, buff, bufflen, 0);
105 ssize_t usbip_net_send(int sockfd, void *buff, size_t bufflen)
107 return usbip_net_xmit(sockfd, buff, bufflen, 1);
110 int usbip_net_send_op_common(int sockfd, uint32_t code, uint32_t status)
112 struct op_common op_common;
115 memset(&op_common, 0, sizeof(op_common));
117 op_common.version = USBIP_VERSION;
118 op_common.code = code;
119 op_common.status = status;
121 PACK_OP_COMMON(1, &op_common);
123 rc = usbip_net_send(sockfd, &op_common, sizeof(op_common));
125 dbg("usbip_net_send failed: %d", rc);
132 int usbip_net_recv_op_common(int sockfd, uint16_t *code)
134 struct op_common op_common;
137 memset(&op_common, 0, sizeof(op_common));
139 rc = usbip_net_recv(sockfd, &op_common, sizeof(op_common));
141 dbg("usbip_net_recv failed: %d", rc);
145 PACK_OP_COMMON(0, &op_common);
147 if (op_common.version != USBIP_VERSION) {
148 dbg("version mismatch: %d %d", op_common.version,
157 if (op_common.code != *code) {
158 dbg("unexpected pdu %#0x for %#0x", op_common.code,
164 if (op_common.status != ST_OK) {
165 dbg("request failed at peer: %d", op_common.status);
169 *code = op_common.code;
176 int usbip_net_set_reuseaddr(int sockfd)
181 ret = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
183 dbg("setsockopt: SO_REUSEADDR");
188 int usbip_net_set_nodelay(int sockfd)
193 ret = setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
195 dbg("setsockopt: TCP_NODELAY");
200 int usbip_net_set_keepalive(int sockfd)
205 ret = setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val));
207 dbg("setsockopt: SO_KEEPALIVE");
215 int usbip_net_tcp_connect(char *hostname, char *service)
217 struct addrinfo hints, *res, *rp;
221 memset(&hints, 0, sizeof(hints));
222 hints.ai_family = AF_UNSPEC;
223 hints.ai_socktype = SOCK_STREAM;
225 /* get all possible addresses */
226 ret = getaddrinfo(hostname, service, &hints, &res);
228 dbg("getaddrinfo: %s service %s: %s", hostname, service,
233 /* try the addresses */
234 for (rp = res; rp; rp = rp->ai_next) {
235 sockfd = socket(rp->ai_family, rp->ai_socktype,
240 /* should set TCP_NODELAY for usbip */
241 usbip_net_set_nodelay(sockfd);
242 /* TODO: write code for heartbeat */
243 usbip_net_set_keepalive(sockfd);
245 if (connect(sockfd, rp->ai_addr, rp->ai_addrlen) == 0)