]>
Commit | Line | Data |
---|---|---|
68ac40d2 MM |
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 | */ | |
452fcdbc | 24 | |
2744d920 | 25 | #include "qemu/osdep.h" |
2addc8fb | 26 | #include "qemu/log.h" |
68ac40d2 MM |
27 | #include "net/slirp.h" |
28 | ||
68ac40d2 | 29 | |
28b150bf | 30 | #ifndef _WIN32 |
1cb1c5d1 | 31 | #include <pwd.h> |
28b150bf BS |
32 | #include <sys/wait.h> |
33 | #endif | |
1422e32d | 34 | #include "net/net.h" |
a245fc18 PB |
35 | #include "clients.h" |
36 | #include "hub.h" | |
83c9089e | 37 | #include "monitor/monitor.h" |
d49b6836 | 38 | #include "qemu/error-report.h" |
1de7afc9 | 39 | #include "qemu/sockets.h" |
68ac40d2 | 40 | #include "slirp/libslirp.h" |
4d43a603 | 41 | #include "chardev/char-fe.h" |
f6c2e66a | 42 | #include "sysemu/sysemu.h" |
f348b6d1 | 43 | #include "qemu/cutils.h" |
32a6ebec | 44 | #include "qapi/error.h" |
452fcdbc | 45 | #include "qapi/qmp/qdict.h" |
e05ae1d9 | 46 | #include "util.h" |
68ac40d2 MM |
47 | |
48 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
49 | { | |
50 | const char *p, *p1; | |
51 | int len; | |
52 | p = *pp; | |
53 | p1 = strchr(p, sep); | |
54 | if (!p1) | |
55 | return -1; | |
56 | len = p1 - p; | |
57 | p1++; | |
58 | if (buf_size > 0) { | |
59 | if (len > buf_size - 1) | |
60 | len = buf_size - 1; | |
61 | memcpy(buf, p, len); | |
62 | buf[len] = '\0'; | |
63 | } | |
64 | *pp = p1; | |
65 | return 0; | |
66 | } | |
67 | ||
68 | /* slirp network adapter */ | |
69 | ||
70 | #define SLIRP_CFG_HOSTFWD 1 | |
68ac40d2 MM |
71 | |
72 | struct slirp_config_str { | |
73 | struct slirp_config_str *next; | |
74 | int flags; | |
75 | char str[1024]; | |
68ac40d2 MM |
76 | }; |
77 | ||
8d45a3b9 MAL |
78 | struct GuestFwd { |
79 | CharBackend hd; | |
80 | struct in_addr server; | |
81 | int port; | |
82 | Slirp *slirp; | |
83 | }; | |
84 | ||
68ac40d2 | 85 | typedef struct SlirpState { |
4e68f7a0 | 86 | NetClientState nc; |
68ac40d2 | 87 | QTAILQ_ENTRY(SlirpState) entry; |
68ac40d2 | 88 | Slirp *slirp; |
1ab67b98 | 89 | Notifier poll_notifier; |
f6c2e66a | 90 | Notifier exit_notifier; |
68ac40d2 | 91 | #ifndef _WIN32 |
f95cc8b6 | 92 | gchar *smb_dir; |
68ac40d2 | 93 | #endif |
8d45a3b9 | 94 | GSList *fwd; |
68ac40d2 MM |
95 | } SlirpState; |
96 | ||
97 | static struct slirp_config_str *slirp_configs; | |
b58deb34 | 98 | static QTAILQ_HEAD(, SlirpState) slirp_stacks = |
68ac40d2 MM |
99 | QTAILQ_HEAD_INITIALIZER(slirp_stacks); |
100 | ||
d18572dd TH |
101 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp); |
102 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp); | |
68ac40d2 MM |
103 | |
104 | #ifndef _WIN32 | |
68ac40d2 | 105 | static int slirp_smb(SlirpState *s, const char *exported_dir, |
5c843af2 | 106 | struct in_addr vserver_addr, Error **errp); |
68ac40d2 MM |
107 | static void slirp_smb_cleanup(SlirpState *s); |
108 | #else | |
109 | static inline void slirp_smb_cleanup(SlirpState *s) { } | |
110 | #endif | |
111 | ||
625a526b MAL |
112 | static ssize_t net_slirp_send_packet(const void *pkt, size_t pkt_len, |
113 | void *opaque) | |
68ac40d2 MM |
114 | { |
115 | SlirpState *s = opaque; | |
116 | ||
625a526b | 117 | return qemu_send_packet(&s->nc, pkt, pkt_len); |
68ac40d2 MM |
118 | } |
119 | ||
4e68f7a0 | 120 | static ssize_t net_slirp_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
68ac40d2 | 121 | { |
ce20b5be | 122 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
123 | |
124 | slirp_input(s->slirp, buf, size); | |
125 | ||
126 | return size; | |
127 | } | |
128 | ||
f6c2e66a PB |
129 | static void slirp_smb_exit(Notifier *n, void *data) |
130 | { | |
131 | SlirpState *s = container_of(n, SlirpState, exit_notifier); | |
132 | slirp_smb_cleanup(s); | |
133 | } | |
134 | ||
8d45a3b9 MAL |
135 | static void slirp_free_fwd(gpointer data) |
136 | { | |
137 | struct GuestFwd *fwd = data; | |
138 | ||
139 | qemu_chr_fe_deinit(&fwd->hd, true); | |
140 | g_free(data); | |
141 | } | |
142 | ||
4e68f7a0 | 143 | static void net_slirp_cleanup(NetClientState *nc) |
68ac40d2 | 144 | { |
ce20b5be | 145 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 | 146 | |
8d45a3b9 | 147 | g_slist_free_full(s->fwd, slirp_free_fwd); |
1ab67b98 | 148 | main_loop_poll_remove_notifier(&s->poll_notifier); |
68ac40d2 | 149 | slirp_cleanup(s->slirp); |
67f3280c MAL |
150 | if (s->exit_notifier.notify) { |
151 | qemu_remove_exit_notifier(&s->exit_notifier); | |
152 | } | |
68ac40d2 MM |
153 | slirp_smb_cleanup(s); |
154 | QTAILQ_REMOVE(&slirp_stacks, s, entry); | |
68ac40d2 MM |
155 | } |
156 | ||
ce20b5be | 157 | static NetClientInfo net_slirp_info = { |
f394b2e2 | 158 | .type = NET_CLIENT_DRIVER_USER, |
ce20b5be MM |
159 | .size = sizeof(SlirpState), |
160 | .receive = net_slirp_receive, | |
161 | .cleanup = net_slirp_cleanup, | |
162 | }; | |
163 | ||
3e0fad3a | 164 | static void net_slirp_guest_error(const char *msg, void *opaque) |
2addc8fb MAL |
165 | { |
166 | qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); | |
167 | } | |
168 | ||
3e0fad3a | 169 | static int64_t net_slirp_clock_get_ns(void *opaque) |
e6dbff3f MAL |
170 | { |
171 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); | |
172 | } | |
173 | ||
3e0fad3a MAL |
174 | static void *net_slirp_timer_new(SlirpTimerCb cb, |
175 | void *cb_opaque, void *opaque) | |
07abf6d4 MAL |
176 | { |
177 | return timer_new_full(NULL, QEMU_CLOCK_VIRTUAL, | |
178 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
3e0fad3a | 179 | cb, cb_opaque); |
07abf6d4 MAL |
180 | } |
181 | ||
3e0fad3a | 182 | static void net_slirp_timer_free(void *timer, void *opaque) |
07abf6d4 MAL |
183 | { |
184 | timer_del(timer); | |
185 | timer_free(timer); | |
186 | } | |
187 | ||
3e0fad3a MAL |
188 | static void net_slirp_timer_mod(void *timer, int64_t expire_timer, |
189 | void *opaque) | |
07abf6d4 MAL |
190 | { |
191 | timer_mod(timer, expire_timer); | |
192 | } | |
193 | ||
3e0fad3a | 194 | static void net_slirp_register_poll_fd(int fd, void *opaque) |
848c7092 MAL |
195 | { |
196 | qemu_fd_register(fd); | |
197 | } | |
198 | ||
3e0fad3a | 199 | static void net_slirp_unregister_poll_fd(int fd, void *opaque) |
f6e5aa36 MAL |
200 | { |
201 | /* no qemu_fd_unregister */ | |
202 | } | |
203 | ||
3e0fad3a MAL |
204 | static void net_slirp_notify(void *opaque) |
205 | { | |
206 | qemu_notify_event(); | |
207 | } | |
208 | ||
d846b927 | 209 | static const SlirpCb slirp_cb = { |
625a526b | 210 | .send_packet = net_slirp_send_packet, |
2addc8fb | 211 | .guest_error = net_slirp_guest_error, |
e6dbff3f | 212 | .clock_get_ns = net_slirp_clock_get_ns, |
07abf6d4 MAL |
213 | .timer_new = net_slirp_timer_new, |
214 | .timer_free = net_slirp_timer_free, | |
215 | .timer_mod = net_slirp_timer_mod, | |
848c7092 | 216 | .register_poll_fd = net_slirp_register_poll_fd, |
f6e5aa36 | 217 | .unregister_poll_fd = net_slirp_unregister_poll_fd, |
3e0fad3a | 218 | .notify = net_slirp_notify, |
d846b927 MAL |
219 | }; |
220 | ||
deaeb3f7 MAL |
221 | static int slirp_poll_to_gio(int events) |
222 | { | |
223 | int ret = 0; | |
224 | ||
225 | if (events & SLIRP_POLL_IN) { | |
226 | ret |= G_IO_IN; | |
227 | } | |
228 | if (events & SLIRP_POLL_OUT) { | |
229 | ret |= G_IO_OUT; | |
230 | } | |
231 | if (events & SLIRP_POLL_PRI) { | |
232 | ret |= G_IO_PRI; | |
233 | } | |
234 | if (events & SLIRP_POLL_ERR) { | |
235 | ret |= G_IO_ERR; | |
236 | } | |
237 | if (events & SLIRP_POLL_HUP) { | |
238 | ret |= G_IO_HUP; | |
239 | } | |
240 | ||
241 | return ret; | |
242 | } | |
243 | ||
244 | static int net_slirp_add_poll(int fd, int events, void *opaque) | |
245 | { | |
246 | GArray *pollfds = opaque; | |
247 | GPollFD pfd = { | |
248 | .fd = fd, | |
249 | .events = slirp_poll_to_gio(events), | |
250 | }; | |
251 | int idx = pollfds->len; | |
252 | g_array_append_val(pollfds, pfd); | |
253 | return idx; | |
254 | } | |
255 | ||
256 | static int slirp_gio_to_poll(int events) | |
257 | { | |
258 | int ret = 0; | |
259 | ||
260 | if (events & G_IO_IN) { | |
261 | ret |= SLIRP_POLL_IN; | |
262 | } | |
263 | if (events & G_IO_OUT) { | |
264 | ret |= SLIRP_POLL_OUT; | |
265 | } | |
266 | if (events & G_IO_PRI) { | |
267 | ret |= SLIRP_POLL_PRI; | |
268 | } | |
269 | if (events & G_IO_ERR) { | |
270 | ret |= SLIRP_POLL_ERR; | |
271 | } | |
272 | if (events & G_IO_HUP) { | |
273 | ret |= SLIRP_POLL_HUP; | |
274 | } | |
275 | ||
276 | return ret; | |
277 | } | |
278 | ||
279 | static int net_slirp_get_revents(int idx, void *opaque) | |
280 | { | |
281 | GArray *pollfds = opaque; | |
282 | ||
283 | return slirp_gio_to_poll(g_array_index(pollfds, GPollFD, idx).revents); | |
284 | } | |
285 | ||
1ab67b98 MAL |
286 | static void net_slirp_poll_notify(Notifier *notifier, void *data) |
287 | { | |
288 | MainLoopPoll *poll = data; | |
289 | SlirpState *s = container_of(notifier, SlirpState, poll_notifier); | |
290 | ||
291 | switch (poll->state) { | |
292 | case MAIN_LOOP_POLL_FILL: | |
deaeb3f7 MAL |
293 | slirp_pollfds_fill(s->slirp, &poll->timeout, |
294 | net_slirp_add_poll, poll->pollfds); | |
1ab67b98 MAL |
295 | break; |
296 | case MAIN_LOOP_POLL_OK: | |
297 | case MAIN_LOOP_POLL_ERR: | |
deaeb3f7 MAL |
298 | slirp_pollfds_poll(s->slirp, poll->state == MAIN_LOOP_POLL_ERR, |
299 | net_slirp_get_revents, poll->pollfds); | |
1ab67b98 MAL |
300 | break; |
301 | default: | |
302 | g_assert_not_reached(); | |
303 | } | |
304 | } | |
305 | ||
4e68f7a0 | 306 | static int net_slirp_init(NetClientState *peer, const char *model, |
68ac40d2 | 307 | const char *name, int restricted, |
0b11c036 ST |
308 | bool ipv4, const char *vnetwork, const char *vhost, |
309 | bool ipv6, const char *vprefix6, int vprefix6_len, | |
7aac531e | 310 | const char *vhost6, |
68ac40d2 MM |
311 | const char *vhostname, const char *tftp_export, |
312 | const char *bootfile, const char *vdhcp_start, | |
7aac531e YB |
313 | const char *vnameserver, const char *vnameserver6, |
314 | const char *smb_export, const char *vsmbserver, | |
f18d1375 | 315 | const char **dnssearch, const char *vdomainname, |
0fca92b9 | 316 | const char *tftp_server_name, |
f18d1375 | 317 | Error **errp) |
68ac40d2 MM |
318 | { |
319 | /* default settings according to historic slirp */ | |
320 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ | |
321 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
322 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ | |
323 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
324 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
7aac531e YB |
325 | struct in6_addr ip6_prefix; |
326 | struct in6_addr ip6_host; | |
327 | struct in6_addr ip6_dns; | |
68ac40d2 MM |
328 | #ifndef _WIN32 |
329 | struct in_addr smbsrv = { .s_addr = 0 }; | |
330 | #endif | |
4e68f7a0 | 331 | NetClientState *nc; |
68ac40d2 MM |
332 | SlirpState *s; |
333 | char buf[20]; | |
334 | uint32_t addr; | |
335 | int shift; | |
336 | char *end; | |
337 | struct slirp_config_str *config; | |
338 | ||
0b11c036 | 339 | if (!ipv4 && (vnetwork || vhost || vnameserver)) { |
5c843af2 | 340 | error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); |
0b11c036 ST |
341 | return -1; |
342 | } | |
343 | ||
344 | if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { | |
5c843af2 | 345 | error_setg(errp, "IPv6 disabled but prefix/host6/dns6 provided"); |
0b11c036 ST |
346 | return -1; |
347 | } | |
348 | ||
349 | if (!ipv4 && !ipv6) { | |
350 | /* It doesn't make sense to disable both */ | |
5c843af2 | 351 | error_setg(errp, "IPv4 and IPv6 disabled"); |
0b11c036 ST |
352 | return -1; |
353 | } | |
354 | ||
68ac40d2 MM |
355 | if (vnetwork) { |
356 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
357 | if (!inet_aton(vnetwork, &net)) { | |
5c843af2 | 358 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
359 | return -1; |
360 | } | |
361 | addr = ntohl(net.s_addr); | |
362 | if (!(addr & 0x80000000)) { | |
363 | mask.s_addr = htonl(0xff000000); /* class A */ | |
364 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
365 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
366 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
367 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
368 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
369 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
370 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
371 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
372 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
373 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
374 | } else { | |
375 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ | |
376 | } | |
377 | } else { | |
378 | if (!inet_aton(buf, &net)) { | |
5c843af2 | 379 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
380 | return -1; |
381 | } | |
382 | shift = strtol(vnetwork, &end, 10); | |
383 | if (*end != '\0') { | |
384 | if (!inet_aton(vnetwork, &mask)) { | |
5c843af2 HP |
385 | error_setg(errp, |
386 | "Failed to parse netmask (trailing chars)"); | |
68ac40d2 MM |
387 | return -1; |
388 | } | |
389 | } else if (shift < 4 || shift > 32) { | |
5c843af2 HP |
390 | error_setg(errp, |
391 | "Invalid netmask provided (must be in range 4-32)"); | |
68ac40d2 MM |
392 | return -1; |
393 | } else { | |
394 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
395 | } | |
396 | } | |
397 | net.s_addr &= mask.s_addr; | |
398 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
399 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
400 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
401 | } | |
402 | ||
403 | if (vhost && !inet_aton(vhost, &host)) { | |
5c843af2 | 404 | error_setg(errp, "Failed to parse host"); |
68ac40d2 MM |
405 | return -1; |
406 | } | |
407 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
5c843af2 | 408 | error_setg(errp, "Host doesn't belong to network"); |
68ac40d2 MM |
409 | return -1; |
410 | } | |
411 | ||
68756ba8 | 412 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
5c843af2 | 413 | error_setg(errp, "Failed to parse DNS"); |
68ac40d2 MM |
414 | return -1; |
415 | } | |
5c843af2 HP |
416 | if ((dns.s_addr & mask.s_addr) != net.s_addr) { |
417 | error_setg(errp, "DNS doesn't belong to network"); | |
418 | return -1; | |
419 | } | |
420 | if (dns.s_addr == host.s_addr) { | |
421 | error_setg(errp, "DNS must be different from host"); | |
68ac40d2 MM |
422 | return -1; |
423 | } | |
424 | ||
68756ba8 | 425 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
5c843af2 | 426 | error_setg(errp, "Failed to parse DHCP start address"); |
68ac40d2 MM |
427 | return -1; |
428 | } | |
5c843af2 HP |
429 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr) { |
430 | error_setg(errp, "DHCP doesn't belong to network"); | |
431 | return -1; | |
432 | } | |
433 | if (dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
434 | error_setg(errp, "DNS must be different from host and DNS"); | |
68ac40d2 MM |
435 | return -1; |
436 | } | |
437 | ||
438 | #ifndef _WIN32 | |
439 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { | |
5c843af2 | 440 | error_setg(errp, "Failed to parse SMB address"); |
68ac40d2 MM |
441 | return -1; |
442 | } | |
443 | #endif | |
444 | ||
7aac531e YB |
445 | if (!vprefix6) { |
446 | vprefix6 = "fec0::"; | |
447 | } | |
448 | if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { | |
5c843af2 | 449 | error_setg(errp, "Failed to parse IPv6 prefix"); |
7aac531e YB |
450 | return -1; |
451 | } | |
7aac531e YB |
452 | |
453 | if (!vprefix6_len) { | |
454 | vprefix6_len = 64; | |
455 | } | |
456 | if (vprefix6_len < 0 || vprefix6_len > 126) { | |
5c843af2 HP |
457 | error_setg(errp, |
458 | "Invalid prefix provided (prefix len must be in range 0-126"); | |
7aac531e YB |
459 | return -1; |
460 | } | |
461 | ||
462 | if (vhost6) { | |
7aac531e | 463 | if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { |
5c843af2 | 464 | error_setg(errp, "Failed to parse IPv6 host"); |
7aac531e YB |
465 | return -1; |
466 | } | |
467 | if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { | |
5c843af2 | 468 | error_setg(errp, "IPv6 Host doesn't belong to network"); |
7aac531e YB |
469 | return -1; |
470 | } | |
7aac531e YB |
471 | } else { |
472 | ip6_host = ip6_prefix; | |
473 | ip6_host.s6_addr[15] |= 2; | |
474 | } | |
475 | ||
476 | if (vnameserver6) { | |
7aac531e | 477 | if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { |
5c843af2 | 478 | error_setg(errp, "Failed to parse IPv6 DNS"); |
7aac531e YB |
479 | return -1; |
480 | } | |
481 | if (!in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { | |
5c843af2 | 482 | error_setg(errp, "IPv6 DNS doesn't belong to network"); |
7aac531e YB |
483 | return -1; |
484 | } | |
7aac531e YB |
485 | } else { |
486 | ip6_dns = ip6_prefix; | |
487 | ip6_dns.s6_addr[15] |= 3; | |
488 | } | |
489 | ||
f18d1375 BD |
490 | if (vdomainname && !*vdomainname) { |
491 | error_setg(errp, "'domainname' parameter cannot be empty"); | |
492 | return -1; | |
493 | } | |
494 | ||
6e157a03 FZ |
495 | if (vdomainname && strlen(vdomainname) > 255) { |
496 | error_setg(errp, "'domainname' parameter cannot exceed 255 bytes"); | |
497 | return -1; | |
498 | } | |
499 | ||
500 | if (vhostname && strlen(vhostname) > 255) { | |
501 | error_setg(errp, "'vhostname' parameter cannot exceed 255 bytes"); | |
502 | return -1; | |
503 | } | |
7aac531e | 504 | |
0fca92b9 FZ |
505 | if (tftp_server_name && strlen(tftp_server_name) > 255) { |
506 | error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes"); | |
507 | return -1; | |
508 | } | |
509 | ||
ab5f3f84 | 510 | nc = qemu_new_net_client(&net_slirp_info, peer, model, name); |
ce20b5be MM |
511 | |
512 | snprintf(nc->info_str, sizeof(nc->info_str), | |
c54ed5bc JK |
513 | "net=%s,restrict=%s", inet_ntoa(net), |
514 | restricted ? "on" : "off"); | |
ce20b5be MM |
515 | |
516 | s = DO_UPCAST(SlirpState, nc, nc); | |
517 | ||
0b11c036 ST |
518 | s->slirp = slirp_init(restricted, ipv4, net, mask, host, |
519 | ipv6, ip6_prefix, vprefix6_len, ip6_host, | |
0fca92b9 FZ |
520 | vhostname, tftp_server_name, |
521 | tftp_export, bootfile, dhcp, | |
62c1d2c4 | 522 | dns, ip6_dns, dnssearch, vdomainname, |
d846b927 | 523 | &slirp_cb, s); |
68ac40d2 MM |
524 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
525 | ||
1ab67b98 MAL |
526 | s->poll_notifier.notify = net_slirp_poll_notify; |
527 | main_loop_poll_add_notifier(&s->poll_notifier); | |
528 | ||
68ac40d2 MM |
529 | for (config = slirp_configs; config; config = config->next) { |
530 | if (config->flags & SLIRP_CFG_HOSTFWD) { | |
d18572dd | 531 | if (slirp_hostfwd(s, config->str, errp) < 0) { |
ce20b5be | 532 | goto error; |
5c843af2 | 533 | } |
68ac40d2 | 534 | } else { |
d18572dd | 535 | if (slirp_guestfwd(s, config->str, errp) < 0) { |
ce20b5be | 536 | goto error; |
5c843af2 | 537 | } |
68ac40d2 MM |
538 | } |
539 | } | |
540 | #ifndef _WIN32 | |
68ac40d2 | 541 | if (smb_export) { |
5c843af2 | 542 | if (slirp_smb(s, smb_export, smbsrv, errp) < 0) { |
ce20b5be | 543 | goto error; |
5c843af2 | 544 | } |
68ac40d2 MM |
545 | } |
546 | #endif | |
547 | ||
f6c2e66a PB |
548 | s->exit_notifier.notify = slirp_smb_exit; |
549 | qemu_add_exit_notifier(&s->exit_notifier); | |
68ac40d2 | 550 | return 0; |
ce20b5be MM |
551 | |
552 | error: | |
b20c6b9e | 553 | qemu_del_net_client(nc); |
ce20b5be | 554 | return -1; |
68ac40d2 MM |
555 | } |
556 | ||
93653066 TH |
557 | static SlirpState *slirp_lookup(Monitor *mon, const char *hub_id, |
558 | const char *name) | |
68ac40d2 | 559 | { |
93653066 | 560 | if (name) { |
4e68f7a0 | 561 | NetClientState *nc; |
93653066 TH |
562 | if (hub_id) { |
563 | nc = net_hub_find_client_by_name(strtol(hub_id, NULL, 0), name); | |
564 | if (!nc) { | |
442da403 | 565 | monitor_printf(mon, "unrecognized (hub-id, stackname) pair\n"); |
93653066 TH |
566 | return NULL; |
567 | } | |
68cb29ea TH |
568 | warn_report("Using 'hub-id' is deprecated, specify the netdev id " |
569 | "directly instead"); | |
93653066 TH |
570 | } else { |
571 | nc = qemu_find_netdev(name); | |
572 | if (!nc) { | |
573 | monitor_printf(mon, "unrecognized netdev id '%s'\n", name); | |
574 | return NULL; | |
575 | } | |
68ac40d2 | 576 | } |
ce20b5be | 577 | if (strcmp(nc->model, "user")) { |
68ac40d2 MM |
578 | monitor_printf(mon, "invalid device specified\n"); |
579 | return NULL; | |
580 | } | |
ce20b5be | 581 | return DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
582 | } else { |
583 | if (QTAILQ_EMPTY(&slirp_stacks)) { | |
584 | monitor_printf(mon, "user mode network stack not in use\n"); | |
585 | return NULL; | |
586 | } | |
587 | return QTAILQ_FIRST(&slirp_stacks); | |
588 | } | |
589 | } | |
590 | ||
3e5a50d6 | 591 | void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
592 | { |
593 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
594 | int host_port; | |
e30e5eb6 | 595 | char buf[256]; |
68ac40d2 MM |
596 | const char *src_str, *p; |
597 | SlirpState *s; | |
598 | int is_udp = 0; | |
599 | int err; | |
600 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
601 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
602 | const char *arg3 = qdict_get_try_str(qdict, "arg3"); | |
603 | ||
93653066 | 604 | if (arg3) { |
68ac40d2 MM |
605 | s = slirp_lookup(mon, arg1, arg2); |
606 | src_str = arg3; | |
93653066 TH |
607 | } else if (arg2) { |
608 | s = slirp_lookup(mon, NULL, arg1); | |
609 | src_str = arg2; | |
68ac40d2 MM |
610 | } else { |
611 | s = slirp_lookup(mon, NULL, NULL); | |
612 | src_str = arg1; | |
613 | } | |
614 | if (!s) { | |
615 | return; | |
616 | } | |
617 | ||
68ac40d2 | 618 | p = src_str; |
e30e5eb6 MA |
619 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
620 | goto fail_syntax; | |
621 | } | |
68ac40d2 MM |
622 | |
623 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
624 | is_udp = 0; | |
625 | } else if (!strcmp(buf, "udp")) { | |
626 | is_udp = 1; | |
627 | } else { | |
628 | goto fail_syntax; | |
629 | } | |
630 | ||
631 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
632 | goto fail_syntax; | |
633 | } | |
634 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
635 | goto fail_syntax; | |
636 | } | |
637 | ||
1fb3f7f2 NA |
638 | if (qemu_strtoi(p, NULL, 10, &host_port)) { |
639 | goto fail_syntax; | |
640 | } | |
68ac40d2 | 641 | |
70381662 | 642 | err = slirp_remove_hostfwd(s->slirp, is_udp, host_addr, host_port); |
68ac40d2 MM |
643 | |
644 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, | |
b15ba6c9 | 645 | err ? "not found" : "removed"); |
68ac40d2 MM |
646 | return; |
647 | ||
648 | fail_syntax: | |
649 | monitor_printf(mon, "invalid format\n"); | |
650 | } | |
651 | ||
d18572dd | 652 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp) |
68ac40d2 MM |
653 | { |
654 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
655 | struct in_addr guest_addr = { .s_addr = 0 }; | |
656 | int host_port, guest_port; | |
657 | const char *p; | |
658 | char buf[256]; | |
659 | int is_udp; | |
660 | char *end; | |
0e7e4fb0 | 661 | const char *fail_reason = "Unknown reason"; |
68ac40d2 MM |
662 | |
663 | p = redir_str; | |
664 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 665 | fail_reason = "No : separators"; |
68ac40d2 MM |
666 | goto fail_syntax; |
667 | } | |
668 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
669 | is_udp = 0; | |
670 | } else if (!strcmp(buf, "udp")) { | |
671 | is_udp = 1; | |
672 | } else { | |
0e7e4fb0 | 673 | fail_reason = "Bad protocol name"; |
68ac40d2 MM |
674 | goto fail_syntax; |
675 | } | |
676 | ||
d18572dd TH |
677 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
678 | fail_reason = "Missing : separator"; | |
679 | goto fail_syntax; | |
680 | } | |
681 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
682 | fail_reason = "Bad host address"; | |
683 | goto fail_syntax; | |
68ac40d2 MM |
684 | } |
685 | ||
d18572dd | 686 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { |
0e7e4fb0 | 687 | fail_reason = "Bad host port separator"; |
68ac40d2 MM |
688 | goto fail_syntax; |
689 | } | |
690 | host_port = strtol(buf, &end, 0); | |
0bed71ed | 691 | if (*end != '\0' || host_port < 0 || host_port > 65535) { |
0e7e4fb0 | 692 | fail_reason = "Bad host port"; |
68ac40d2 MM |
693 | goto fail_syntax; |
694 | } | |
695 | ||
696 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 697 | fail_reason = "Missing guest address"; |
68ac40d2 MM |
698 | goto fail_syntax; |
699 | } | |
700 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { | |
0e7e4fb0 | 701 | fail_reason = "Bad guest address"; |
68ac40d2 MM |
702 | goto fail_syntax; |
703 | } | |
704 | ||
705 | guest_port = strtol(p, &end, 0); | |
706 | if (*end != '\0' || guest_port < 1 || guest_port > 65535) { | |
0e7e4fb0 | 707 | fail_reason = "Bad guest port"; |
68ac40d2 MM |
708 | goto fail_syntax; |
709 | } | |
710 | ||
711 | if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr, | |
712 | guest_port) < 0) { | |
5c843af2 HP |
713 | error_setg(errp, "Could not set up host forwarding rule '%s'", |
714 | redir_str); | |
68ac40d2 MM |
715 | return -1; |
716 | } | |
717 | return 0; | |
718 | ||
719 | fail_syntax: | |
0e7e4fb0 DDAG |
720 | error_setg(errp, "Invalid host forwarding rule '%s' (%s)", redir_str, |
721 | fail_reason); | |
68ac40d2 MM |
722 | return -1; |
723 | } | |
724 | ||
3e5a50d6 | 725 | void hmp_hostfwd_add(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
726 | { |
727 | const char *redir_str; | |
728 | SlirpState *s; | |
729 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
730 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
731 | const char *arg3 = qdict_get_try_str(qdict, "arg3"); | |
732 | ||
93653066 | 733 | if (arg3) { |
68ac40d2 MM |
734 | s = slirp_lookup(mon, arg1, arg2); |
735 | redir_str = arg3; | |
93653066 TH |
736 | } else if (arg2) { |
737 | s = slirp_lookup(mon, NULL, arg1); | |
738 | redir_str = arg2; | |
68ac40d2 MM |
739 | } else { |
740 | s = slirp_lookup(mon, NULL, NULL); | |
741 | redir_str = arg1; | |
742 | } | |
743 | if (s) { | |
5c843af2 | 744 | Error *err = NULL; |
d18572dd | 745 | if (slirp_hostfwd(s, redir_str, &err) < 0) { |
5c843af2 HP |
746 | error_report_err(err); |
747 | } | |
68ac40d2 MM |
748 | } |
749 | ||
750 | } | |
751 | ||
68ac40d2 MM |
752 | #ifndef _WIN32 |
753 | ||
754 | /* automatic user mode samba server configuration */ | |
755 | static void slirp_smb_cleanup(SlirpState *s) | |
756 | { | |
5a01e99f | 757 | int ret; |
68ac40d2 | 758 | |
f95cc8b6 DDAG |
759 | if (s->smb_dir) { |
760 | gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir); | |
5a01e99f | 761 | ret = system(cmd); |
24ac07de | 762 | if (ret == -1 || !WIFEXITED(ret)) { |
1ecda02b | 763 | error_report("'%s' failed.", cmd); |
5a01e99f | 764 | } else if (WEXITSTATUS(ret)) { |
1ecda02b MA |
765 | error_report("'%s' failed. Error code: %d", |
766 | cmd, WEXITSTATUS(ret)); | |
5a01e99f | 767 | } |
f95cc8b6 DDAG |
768 | g_free(cmd); |
769 | g_free(s->smb_dir); | |
770 | s->smb_dir = NULL; | |
68ac40d2 MM |
771 | } |
772 | } | |
773 | ||
774 | static int slirp_smb(SlirpState* s, const char *exported_dir, | |
5c843af2 | 775 | struct in_addr vserver_addr, Error **errp) |
68ac40d2 | 776 | { |
f95cc8b6 DDAG |
777 | char *smb_conf; |
778 | char *smb_cmdline; | |
1cb1c5d1 | 779 | struct passwd *passwd; |
68ac40d2 MM |
780 | FILE *f; |
781 | ||
1cb1c5d1 JK |
782 | passwd = getpwuid(geteuid()); |
783 | if (!passwd) { | |
5c843af2 | 784 | error_setg(errp, "Failed to retrieve user name"); |
1cb1c5d1 JK |
785 | return -1; |
786 | } | |
787 | ||
927d811b | 788 | if (access(CONFIG_SMBD_COMMAND, F_OK)) { |
5c843af2 HP |
789 | error_setg(errp, "Could not find '%s', please install it", |
790 | CONFIG_SMBD_COMMAND); | |
927d811b DH |
791 | return -1; |
792 | } | |
793 | ||
794 | if (access(exported_dir, R_OK | X_OK)) { | |
5c843af2 HP |
795 | error_setg(errp, "Error accessing shared directory '%s': %s", |
796 | exported_dir, strerror(errno)); | |
927d811b DH |
797 | return -1; |
798 | } | |
799 | ||
f95cc8b6 DDAG |
800 | s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL); |
801 | if (!s->smb_dir) { | |
5c843af2 | 802 | error_setg(errp, "Could not create samba server dir"); |
68ac40d2 MM |
803 | return -1; |
804 | } | |
f95cc8b6 | 805 | smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf"); |
68ac40d2 MM |
806 | |
807 | f = fopen(smb_conf, "w"); | |
808 | if (!f) { | |
809 | slirp_smb_cleanup(s); | |
5c843af2 HP |
810 | error_setg(errp, |
811 | "Could not create samba server configuration file '%s'", | |
812 | smb_conf); | |
f95cc8b6 | 813 | g_free(smb_conf); |
68ac40d2 MM |
814 | return -1; |
815 | } | |
816 | fprintf(f, | |
817 | "[global]\n" | |
818 | "private dir=%s\n" | |
7912d04b PW |
819 | "interfaces=127.0.0.1\n" |
820 | "bind interfaces only=yes\n" | |
68ac40d2 MM |
821 | "pid directory=%s\n" |
822 | "lock directory=%s\n" | |
276eda57 | 823 | "state directory=%s\n" |
7912d04b | 824 | "cache directory=%s\n" |
b87b8a8b | 825 | "ncalrpc dir=%s/ncalrpc\n" |
68ac40d2 MM |
826 | "log file=%s/log.smbd\n" |
827 | "smb passwd file=%s/smbpasswd\n" | |
c2804ee6 MB |
828 | "security = user\n" |
829 | "map to guest = Bad User\n" | |
7912d04b PW |
830 | "load printers = no\n" |
831 | "printing = bsd\n" | |
832 | "disable spoolss = yes\n" | |
833 | "usershare max shares = 0\n" | |
68ac40d2 MM |
834 | "[qemu]\n" |
835 | "path=%s\n" | |
836 | "read only=no\n" | |
1cb1c5d1 JK |
837 | "guest ok=yes\n" |
838 | "force user=%s\n", | |
68ac40d2 MM |
839 | s->smb_dir, |
840 | s->smb_dir, | |
841 | s->smb_dir, | |
842 | s->smb_dir, | |
843 | s->smb_dir, | |
276eda57 | 844 | s->smb_dir, |
b87b8a8b | 845 | s->smb_dir, |
7912d04b | 846 | s->smb_dir, |
1cb1c5d1 JK |
847 | exported_dir, |
848 | passwd->pw_name | |
68ac40d2 MM |
849 | ); |
850 | fclose(f); | |
851 | ||
f95cc8b6 | 852 | smb_cmdline = g_strdup_printf("%s -l %s -s %s", |
44d8d2b2 | 853 | CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); |
f95cc8b6 | 854 | g_free(smb_conf); |
68ac40d2 | 855 | |
44b4ff24 MAL |
856 | if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || |
857 | slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { | |
68ac40d2 | 858 | slirp_smb_cleanup(s); |
f95cc8b6 | 859 | g_free(smb_cmdline); |
5c843af2 | 860 | error_setg(errp, "Conflicting/invalid smbserver address"); |
68ac40d2 MM |
861 | return -1; |
862 | } | |
f95cc8b6 | 863 | g_free(smb_cmdline); |
68ac40d2 MM |
864 | return 0; |
865 | } | |
866 | ||
68ac40d2 MM |
867 | #endif /* !defined(_WIN32) */ |
868 | ||
68ac40d2 MM |
869 | static int guestfwd_can_read(void *opaque) |
870 | { | |
871 | struct GuestFwd *fwd = opaque; | |
872 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); | |
873 | } | |
874 | ||
875 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) | |
876 | { | |
877 | struct GuestFwd *fwd = opaque; | |
878 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); | |
879 | } | |
880 | ||
625a526b | 881 | static ssize_t guestfwd_write(const void *buf, size_t len, void *chr) |
44b4ff24 MAL |
882 | { |
883 | return qemu_chr_fe_write_all(chr, buf, len); | |
884 | } | |
885 | ||
d18572dd | 886 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) |
68ac40d2 MM |
887 | { |
888 | struct in_addr server = { .s_addr = 0 }; | |
889 | struct GuestFwd *fwd; | |
890 | const char *p; | |
891 | char buf[128]; | |
892 | char *end; | |
893 | int port; | |
894 | ||
895 | p = config_str; | |
d18572dd TH |
896 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
897 | goto fail_syntax; | |
898 | } | |
899 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
900 | goto fail_syntax; | |
901 | } | |
902 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
903 | goto fail_syntax; | |
904 | } | |
905 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
906 | goto fail_syntax; | |
907 | } | |
908 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
909 | goto fail_syntax; | |
68ac40d2 MM |
910 | } |
911 | port = strtol(buf, &end, 10); | |
912 | if (*end != '\0' || port < 1 || port > 65535) { | |
913 | goto fail_syntax; | |
914 | } | |
915 | ||
a9899996 | 916 | snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); |
68ac40d2 | 917 | |
3624730a | 918 | if (g_str_has_prefix(p, "cmd:")) { |
44b4ff24 | 919 | if (slirp_add_exec(s->slirp, &p[4], &server, port) < 0) { |
5c843af2 HP |
920 | error_setg(errp, "Conflicting/invalid host:port in guest " |
921 | "forwarding rule '%s'", config_str); | |
b412eb61 AG |
922 | return -1; |
923 | } | |
924 | } else { | |
32a6ebec | 925 | Error *err = NULL; |
95e30b2a MAL |
926 | /* |
927 | * FIXME: sure we want to support implicit | |
928 | * muxed monitors here? | |
929 | */ | |
930 | Chardev *chr = qemu_chr_new_mux_mon(buf, p); | |
32a6ebec MAL |
931 | |
932 | if (!chr) { | |
5c843af2 HP |
933 | error_setg(errp, "Could not open guest forwarding device '%s'", |
934 | buf); | |
32a6ebec MAL |
935 | return -1; |
936 | } | |
937 | ||
938 | fwd = g_new(struct GuestFwd, 1); | |
939 | qemu_chr_fe_init(&fwd->hd, chr, &err); | |
940 | if (err) { | |
5c843af2 | 941 | error_propagate(errp, err); |
8e207c32 | 942 | object_unparent(OBJECT(chr)); |
b412eb61 AG |
943 | g_free(fwd); |
944 | return -1; | |
945 | } | |
68ac40d2 | 946 | |
44b4ff24 MAL |
947 | if (slirp_add_guestfwd(s->slirp, guestfwd_write, &fwd->hd, |
948 | &server, port) < 0) { | |
5c843af2 HP |
949 | error_setg(errp, "Conflicting/invalid host:port in guest " |
950 | "forwarding rule '%s'", config_str); | |
8e207c32 | 951 | qemu_chr_fe_deinit(&fwd->hd, true); |
b412eb61 AG |
952 | g_free(fwd); |
953 | return -1; | |
954 | } | |
955 | fwd->server = server; | |
956 | fwd->port = port; | |
957 | fwd->slirp = s->slirp; | |
958 | ||
5345fdb4 | 959 | qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, |
81517ba3 | 960 | NULL, NULL, fwd, NULL, true); |
8d45a3b9 | 961 | s->fwd = g_slist_append(s->fwd, fwd); |
b412eb61 | 962 | } |
68ac40d2 MM |
963 | return 0; |
964 | ||
965 | fail_syntax: | |
5c843af2 | 966 | error_setg(errp, "Invalid guest forwarding rule '%s'", config_str); |
68ac40d2 MM |
967 | return -1; |
968 | } | |
969 | ||
1ce6be24 | 970 | void hmp_info_usernet(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
971 | { |
972 | SlirpState *s; | |
973 | ||
974 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { | |
90d87a33 | 975 | int id; |
442da403 | 976 | bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; |
b7f43bf2 MAL |
977 | char *info = slirp_connection_info(s->slirp); |
978 | monitor_printf(mon, "Hub %d (%s):\n%s", | |
442da403 | 979 | got_hub_id ? id : -1, |
b7f43bf2 MAL |
980 | s->nc.name, info); |
981 | g_free(info); | |
68ac40d2 MM |
982 | } |
983 | } | |
984 | ||
094f15c5 LE |
985 | static void |
986 | net_init_slirp_configs(const StringList *fwd, int flags) | |
68ac40d2 | 987 | { |
094f15c5 LE |
988 | while (fwd) { |
989 | struct slirp_config_str *config; | |
68ac40d2 | 990 | |
094f15c5 LE |
991 | config = g_malloc0(sizeof(*config)); |
992 | pstrcpy(config->str, sizeof(config->str), fwd->value->str); | |
993 | config->flags = flags; | |
994 | config->next = slirp_configs; | |
995 | slirp_configs = config; | |
68ac40d2 | 996 | |
094f15c5 | 997 | fwd = fwd->next; |
68ac40d2 | 998 | } |
68ac40d2 MM |
999 | } |
1000 | ||
63d2960b KS |
1001 | static const char **slirp_dnssearch(const StringList *dnsname) |
1002 | { | |
1003 | const StringList *c = dnsname; | |
1004 | size_t i = 0, num_opts = 0; | |
1005 | const char **ret; | |
1006 | ||
1007 | while (c) { | |
1008 | num_opts++; | |
1009 | c = c->next; | |
1010 | } | |
1011 | ||
1012 | if (num_opts == 0) { | |
1013 | return NULL; | |
1014 | } | |
1015 | ||
1016 | ret = g_malloc((num_opts + 1) * sizeof(*ret)); | |
1017 | c = dnsname; | |
1018 | while (c) { | |
1019 | ret[i++] = c->value->str; | |
1020 | c = c->next; | |
1021 | } | |
1022 | ret[i] = NULL; | |
1023 | return ret; | |
1024 | } | |
1025 | ||
cebea510 | 1026 | int net_init_slirp(const Netdev *netdev, const char *name, |
a30ecde6 | 1027 | NetClientState *peer, Error **errp) |
68ac40d2 MM |
1028 | { |
1029 | struct slirp_config_str *config; | |
094f15c5 | 1030 | char *vnet; |
68ac40d2 | 1031 | int ret; |
094f15c5 | 1032 | const NetdevUserOptions *user; |
63d2960b | 1033 | const char **dnssearch; |
0b11c036 | 1034 | bool ipv4 = true, ipv6 = true; |
68ac40d2 | 1035 | |
f394b2e2 EB |
1036 | assert(netdev->type == NET_CLIENT_DRIVER_USER); |
1037 | user = &netdev->u.user; | |
68ac40d2 | 1038 | |
0b11c036 ST |
1039 | if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || |
1040 | (user->has_ipv4 && !user->ipv4)) { | |
1041 | ipv4 = 0; | |
1042 | } | |
1043 | if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || | |
1044 | (user->has_ipv6 && !user->ipv6)) { | |
1045 | ipv6 = 0; | |
1046 | } | |
1047 | ||
094f15c5 LE |
1048 | vnet = user->has_net ? g_strdup(user->net) : |
1049 | user->has_ip ? g_strdup_printf("%s/24", user->ip) : | |
1050 | NULL; | |
68ac40d2 | 1051 | |
63d2960b KS |
1052 | dnssearch = slirp_dnssearch(user->dnssearch); |
1053 | ||
094f15c5 | 1054 | /* all optional fields are initialized to "all bits zero" */ |
68ac40d2 | 1055 | |
094f15c5 LE |
1056 | net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); |
1057 | net_init_slirp_configs(user->guestfwd, 0); | |
68ac40d2 | 1058 | |
0b11c036 ST |
1059 | ret = net_slirp_init(peer, "user", name, user->q_restrict, |
1060 | ipv4, vnet, user->host, | |
1061 | ipv6, user->ipv6_prefix, user->ipv6_prefixlen, | |
d8eb3864 | 1062 | user->ipv6_host, user->hostname, user->tftp, |
7aac531e | 1063 | user->bootfile, user->dhcpstart, |
d8eb3864 | 1064 | user->dns, user->ipv6_dns, user->smb, |
0fca92b9 FZ |
1065 | user->smbserver, dnssearch, user->domainname, |
1066 | user->tftp_server_name, errp); | |
68ac40d2 MM |
1067 | |
1068 | while (slirp_configs) { | |
1069 | config = slirp_configs; | |
1070 | slirp_configs = config->next; | |
7267c094 | 1071 | g_free(config); |
68ac40d2 MM |
1072 | } |
1073 | ||
7267c094 | 1074 | g_free(vnet); |
63d2960b | 1075 | g_free(dnssearch); |
68ac40d2 MM |
1076 | |
1077 | return ret; | |
1078 | } |