tests: virtio-9p: rename PCI configuration test
[qemu.git] / net / tap-solaris.c
1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "qemu/osdep.h"
26 #include "qapi/error.h"
27 #include "tap_int.h"
28 #include "sysemu/sysemu.h"
29 #include "qemu/cutils.h"
30
31 #include <sys/ethernet.h>
32 #include <sys/sockio.h>
33 #include <netinet/arp.h>
34 #include <netinet/in.h>
35 #include <netinet/in_systm.h>
36 #include <netinet/ip.h>
37 #include <netinet/ip_icmp.h> // must come after ip.h
38 #include <netinet/udp.h>
39 #include <netinet/tcp.h>
40 #include <net/if.h>
41 #include <stropts.h>
42 #include "qemu/error-report.h"
43
44 ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
45 {
46 struct strbuf sbuf;
47 int f = 0;
48
49 sbuf.maxlen = maxlen;
50 sbuf.buf = (char *)buf;
51
52 return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
53 }
54
55 #define TUNNEWPPA (('T'<<16) | 0x0001)
56 /*
57 * Allocate TAP device, returns opened fd.
58 * Stores dev name in the first arg(must be large enough).
59 */
60 static int tap_alloc(char *dev, size_t dev_size, Error **errp)
61 {
62 /* FIXME leaks like a sieve on error paths */
63 /* FIXME suspicious: many errors are reported, then ignored */
64 int tap_fd, if_fd, ppa = -1;
65 static int ip_fd = 0;
66 char *ptr;
67
68 static int arp_fd = 0;
69 int ip_muxid, arp_muxid;
70 struct strioctl strioc_if, strioc_ppa;
71 int link_type = I_PLINK;
72 struct lifreq ifr;
73 char actual_name[32] = "";
74
75 memset(&ifr, 0x0, sizeof(ifr));
76
77 if( *dev ){
78 ptr = dev;
79 while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
80 ppa = atoi(ptr);
81 }
82
83 /* Check if IP device was opened */
84 if( ip_fd )
85 close(ip_fd);
86
87 TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
88 if (ip_fd < 0) {
89 error_setg(errp, "Can't open /dev/ip (actually /dev/udp)");
90 return -1;
91 }
92
93 TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
94 if (tap_fd < 0) {
95 error_setg(errp, "Can't open /dev/tap");
96 return -1;
97 }
98
99 /* Assign a new PPA and get its unit number. */
100 strioc_ppa.ic_cmd = TUNNEWPPA;
101 strioc_ppa.ic_timout = 0;
102 strioc_ppa.ic_len = sizeof(ppa);
103 strioc_ppa.ic_dp = (char *)&ppa;
104 if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
105 error_report("Can't assign new interface");
106
107 TFR(if_fd = open("/dev/tap", O_RDWR, 0));
108 if (if_fd < 0) {
109 error_setg(errp, "Can't open /dev/tap (2)");
110 return -1;
111 }
112 if(ioctl(if_fd, I_PUSH, "ip") < 0){
113 error_setg(errp, "Can't push IP module");
114 return -1;
115 }
116
117 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
118 error_report("Can't get flags");
119
120 snprintf (actual_name, 32, "tap%d", ppa);
121 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
122
123 ifr.lifr_ppa = ppa;
124 /* Assign ppa according to the unit number returned by tun device */
125
126 if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
127 error_report("Can't set PPA %d", ppa);
128 if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
129 error_report("Can't get flags");
130 /* Push arp module to if_fd */
131 if (ioctl (if_fd, I_PUSH, "arp") < 0)
132 error_report("Can't push ARP module (2)");
133
134 /* Push arp module to ip_fd */
135 if (ioctl (ip_fd, I_POP, NULL) < 0)
136 error_report("I_POP failed");
137 if (ioctl (ip_fd, I_PUSH, "arp") < 0)
138 error_report("Can't push ARP module (3)");
139 /* Open arp_fd */
140 TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
141 if (arp_fd < 0)
142 error_report("Can't open %s", "/dev/tap");
143
144 /* Set ifname to arp */
145 strioc_if.ic_cmd = SIOCSLIFNAME;
146 strioc_if.ic_timout = 0;
147 strioc_if.ic_len = sizeof(ifr);
148 strioc_if.ic_dp = (char *)&ifr;
149 if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
150 error_report("Can't set ifname to arp");
151 }
152
153 if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
154 error_setg(errp, "Can't link TAP device to IP");
155 return -1;
156 }
157
158 if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
159 error_report("Can't link TAP device to ARP");
160
161 close (if_fd);
162
163 memset(&ifr, 0x0, sizeof(ifr));
164 pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
165 ifr.lifr_ip_muxid = ip_muxid;
166 ifr.lifr_arp_muxid = arp_muxid;
167
168 if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
169 {
170 ioctl (ip_fd, I_PUNLINK , arp_muxid);
171 ioctl (ip_fd, I_PUNLINK, ip_muxid);
172 error_report("Can't set multiplexor id");
173 }
174
175 snprintf(dev, dev_size, "tap%d", ppa);
176 return tap_fd;
177 }
178
179 int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
180 int vnet_hdr_required, int mq_required, Error **errp)
181 {
182 char dev[10]="";
183 int fd;
184
185 fd = tap_alloc(dev, sizeof(dev), errp);
186 if (fd < 0) {
187 return -1;
188 }
189 pstrcpy(ifname, ifname_size, dev);
190 if (*vnet_hdr) {
191 /* Solaris doesn't have IFF_VNET_HDR */
192 *vnet_hdr = 0;
193
194 if (vnet_hdr_required && !*vnet_hdr) {
195 error_setg(errp, "vnet_hdr=1 requested, but no kernel "
196 "support for IFF_VNET_HDR available");
197 close(fd);
198 return -1;
199 }
200 }
201 fcntl(fd, F_SETFL, O_NONBLOCK);
202 return fd;
203 }
204
205 void tap_set_sndbuf(int fd, const NetdevTapOptions *tap, Error **errp)
206 {
207 }
208
209 int tap_probe_vnet_hdr(int fd)
210 {
211 return 0;
212 }
213
214 int tap_probe_has_ufo(int fd)
215 {
216 return 0;
217 }
218
219 int tap_probe_vnet_hdr_len(int fd, int len)
220 {
221 return 0;
222 }
223
224 void tap_fd_set_vnet_hdr_len(int fd, int len)
225 {
226 }
227
228 int tap_fd_set_vnet_le(int fd, int is_le)
229 {
230 return -EINVAL;
231 }
232
233 int tap_fd_set_vnet_be(int fd, int is_be)
234 {
235 return -EINVAL;
236 }
237
238 void tap_fd_set_offload(int fd, int csum, int tso4,
239 int tso6, int ecn, int ufo)
240 {
241 }
242
243 int tap_fd_enable(int fd)
244 {
245 return -1;
246 }
247
248 int tap_fd_disable(int fd)
249 {
250 return -1;
251 }
252
253 int tap_fd_get_ifname(int fd, char *ifname)
254 {
255 return -1;
256 }