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Commit | Line | Data |
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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 | |
35acbb30 | 30 | #if defined(CONFIG_SMBD_COMMAND) |
1cb1c5d1 | 31 | #include <pwd.h> |
28b150bf BS |
32 | #include <sys/wait.h> |
33 | #endif | |
969e50b6 | 34 | #include "net/eth.h" |
1422e32d | 35 | #include "net/net.h" |
a245fc18 PB |
36 | #include "clients.h" |
37 | #include "hub.h" | |
83c9089e | 38 | #include "monitor/monitor.h" |
d49b6836 | 39 | #include "qemu/error-report.h" |
1de7afc9 | 40 | #include "qemu/sockets.h" |
675b9b53 | 41 | #include <libslirp.h> |
4d43a603 | 42 | #include "chardev/char-fe.h" |
f6c2e66a | 43 | #include "sysemu/sysemu.h" |
f348b6d1 | 44 | #include "qemu/cutils.h" |
32a6ebec | 45 | #include "qapi/error.h" |
452fcdbc | 46 | #include "qapi/qmp/qdict.h" |
e05ae1d9 | 47 | #include "util.h" |
d8903441 MAL |
48 | #include "migration/register.h" |
49 | #include "migration/qemu-file-types.h" | |
68ac40d2 MM |
50 | |
51 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
52 | { | |
53 | const char *p, *p1; | |
54 | int len; | |
55 | p = *pp; | |
56 | p1 = strchr(p, sep); | |
57 | if (!p1) | |
58 | return -1; | |
59 | len = p1 - p; | |
60 | p1++; | |
61 | if (buf_size > 0) { | |
62 | if (len > buf_size - 1) | |
63 | len = buf_size - 1; | |
64 | memcpy(buf, p, len); | |
65 | buf[len] = '\0'; | |
66 | } | |
67 | *pp = p1; | |
68 | return 0; | |
69 | } | |
70 | ||
71 | /* slirp network adapter */ | |
72 | ||
73 | #define SLIRP_CFG_HOSTFWD 1 | |
68ac40d2 MM |
74 | |
75 | struct slirp_config_str { | |
76 | struct slirp_config_str *next; | |
77 | int flags; | |
78 | char str[1024]; | |
68ac40d2 MM |
79 | }; |
80 | ||
8d45a3b9 MAL |
81 | struct GuestFwd { |
82 | CharBackend hd; | |
83 | struct in_addr server; | |
84 | int port; | |
85 | Slirp *slirp; | |
86 | }; | |
87 | ||
68ac40d2 | 88 | typedef struct SlirpState { |
4e68f7a0 | 89 | NetClientState nc; |
68ac40d2 | 90 | QTAILQ_ENTRY(SlirpState) entry; |
68ac40d2 | 91 | Slirp *slirp; |
1ab67b98 | 92 | Notifier poll_notifier; |
f6c2e66a | 93 | Notifier exit_notifier; |
35acbb30 | 94 | #if defined(CONFIG_SMBD_COMMAND) |
f95cc8b6 | 95 | gchar *smb_dir; |
68ac40d2 | 96 | #endif |
8d45a3b9 | 97 | GSList *fwd; |
68ac40d2 MM |
98 | } SlirpState; |
99 | ||
100 | static struct slirp_config_str *slirp_configs; | |
b58deb34 | 101 | static QTAILQ_HEAD(, SlirpState) slirp_stacks = |
68ac40d2 MM |
102 | QTAILQ_HEAD_INITIALIZER(slirp_stacks); |
103 | ||
d18572dd TH |
104 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp); |
105 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp); | |
68ac40d2 | 106 | |
35acbb30 | 107 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 108 | static int slirp_smb(SlirpState *s, const char *exported_dir, |
5c843af2 | 109 | struct in_addr vserver_addr, Error **errp); |
68ac40d2 MM |
110 | static void slirp_smb_cleanup(SlirpState *s); |
111 | #else | |
112 | static inline void slirp_smb_cleanup(SlirpState *s) { } | |
113 | #endif | |
114 | ||
625a526b MAL |
115 | static ssize_t net_slirp_send_packet(const void *pkt, size_t pkt_len, |
116 | void *opaque) | |
68ac40d2 MM |
117 | { |
118 | SlirpState *s = opaque; | |
969e50b6 BM |
119 | uint8_t min_pkt[ETH_ZLEN]; |
120 | size_t min_pktsz = sizeof(min_pkt); | |
121 | ||
bc38e31b | 122 | if (net_peer_needs_padding(&s->nc)) { |
969e50b6 BM |
123 | if (eth_pad_short_frame(min_pkt, &min_pktsz, pkt, pkt_len)) { |
124 | pkt = min_pkt; | |
125 | pkt_len = min_pktsz; | |
126 | } | |
127 | } | |
68ac40d2 | 128 | |
625a526b | 129 | return qemu_send_packet(&s->nc, pkt, pkt_len); |
68ac40d2 MM |
130 | } |
131 | ||
4e68f7a0 | 132 | static ssize_t net_slirp_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
68ac40d2 | 133 | { |
ce20b5be | 134 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
135 | |
136 | slirp_input(s->slirp, buf, size); | |
137 | ||
138 | return size; | |
139 | } | |
140 | ||
f6c2e66a PB |
141 | static void slirp_smb_exit(Notifier *n, void *data) |
142 | { | |
143 | SlirpState *s = container_of(n, SlirpState, exit_notifier); | |
144 | slirp_smb_cleanup(s); | |
145 | } | |
146 | ||
8d45a3b9 MAL |
147 | static void slirp_free_fwd(gpointer data) |
148 | { | |
149 | struct GuestFwd *fwd = data; | |
150 | ||
151 | qemu_chr_fe_deinit(&fwd->hd, true); | |
152 | g_free(data); | |
153 | } | |
154 | ||
4e68f7a0 | 155 | static void net_slirp_cleanup(NetClientState *nc) |
68ac40d2 | 156 | { |
ce20b5be | 157 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 | 158 | |
8d45a3b9 | 159 | g_slist_free_full(s->fwd, slirp_free_fwd); |
1ab67b98 | 160 | main_loop_poll_remove_notifier(&s->poll_notifier); |
d8903441 | 161 | unregister_savevm(NULL, "slirp", s->slirp); |
68ac40d2 | 162 | slirp_cleanup(s->slirp); |
67f3280c MAL |
163 | if (s->exit_notifier.notify) { |
164 | qemu_remove_exit_notifier(&s->exit_notifier); | |
165 | } | |
68ac40d2 MM |
166 | slirp_smb_cleanup(s); |
167 | QTAILQ_REMOVE(&slirp_stacks, s, entry); | |
68ac40d2 MM |
168 | } |
169 | ||
ce20b5be | 170 | static NetClientInfo net_slirp_info = { |
f394b2e2 | 171 | .type = NET_CLIENT_DRIVER_USER, |
ce20b5be MM |
172 | .size = sizeof(SlirpState), |
173 | .receive = net_slirp_receive, | |
174 | .cleanup = net_slirp_cleanup, | |
175 | }; | |
176 | ||
3e0fad3a | 177 | static void net_slirp_guest_error(const char *msg, void *opaque) |
2addc8fb MAL |
178 | { |
179 | qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); | |
180 | } | |
181 | ||
3e0fad3a | 182 | static int64_t net_slirp_clock_get_ns(void *opaque) |
e6dbff3f MAL |
183 | { |
184 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); | |
185 | } | |
186 | ||
6222e55d | 187 | typedef struct SlirpTimer SlirpTimer; |
ad2e5b87 PB |
188 | struct SlirpTimer { |
189 | QEMUTimer timer; | |
6222e55d PB |
190 | #if SLIRP_CHECK_VERSION(4,7,0) |
191 | Slirp *slirp; | |
192 | SlirpTimerId id; | |
193 | void *cb_opaque; | |
194 | #endif | |
195 | }; | |
196 | ||
197 | #if SLIRP_CHECK_VERSION(4,7,0) | |
198 | static void net_slirp_init_completed(Slirp *slirp, void *opaque) | |
199 | { | |
200 | SlirpState *s = opaque; | |
201 | s->slirp = slirp; | |
ad2e5b87 PB |
202 | } |
203 | ||
6222e55d PB |
204 | static void net_slirp_timer_cb(void *opaque) |
205 | { | |
206 | SlirpTimer *t = opaque; | |
207 | slirp_handle_timer(t->slirp, t->id, t->cb_opaque); | |
208 | } | |
209 | ||
210 | static void *net_slirp_timer_new_opaque(SlirpTimerId id, | |
211 | void *cb_opaque, void *opaque) | |
212 | { | |
213 | SlirpState *s = opaque; | |
214 | SlirpTimer *t = g_new(SlirpTimer, 1); | |
215 | t->slirp = s->slirp; | |
216 | t->id = id; | |
217 | t->cb_opaque = cb_opaque; | |
218 | timer_init_full(&t->timer, NULL, QEMU_CLOCK_VIRTUAL, | |
219 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
220 | net_slirp_timer_cb, t); | |
221 | return t; | |
222 | } | |
223 | #else | |
3e0fad3a MAL |
224 | static void *net_slirp_timer_new(SlirpTimerCb cb, |
225 | void *cb_opaque, void *opaque) | |
07abf6d4 | 226 | { |
ad2e5b87 PB |
227 | SlirpTimer *t = g_new(SlirpTimer, 1); |
228 | timer_init_full(&t->timer, NULL, QEMU_CLOCK_VIRTUAL, | |
229 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
230 | cb, cb_opaque); | |
231 | return t; | |
07abf6d4 | 232 | } |
6222e55d | 233 | #endif |
07abf6d4 | 234 | |
3e0fad3a | 235 | static void net_slirp_timer_free(void *timer, void *opaque) |
07abf6d4 | 236 | { |
ad2e5b87 PB |
237 | SlirpTimer *t = timer; |
238 | timer_del(&t->timer); | |
239 | g_free(t); | |
07abf6d4 MAL |
240 | } |
241 | ||
3e0fad3a MAL |
242 | static void net_slirp_timer_mod(void *timer, int64_t expire_timer, |
243 | void *opaque) | |
07abf6d4 | 244 | { |
ad2e5b87 PB |
245 | SlirpTimer *t = timer; |
246 | timer_mod(&t->timer, expire_timer); | |
07abf6d4 MAL |
247 | } |
248 | ||
3e0fad3a | 249 | static void net_slirp_register_poll_fd(int fd, void *opaque) |
848c7092 | 250 | { |
faa4ec16 MAL |
251 | #ifdef WIN32 |
252 | AioContext *ctxt = qemu_get_aio_context(); | |
253 | ||
254 | qemu_socket_select(fd, event_notifier_get_handle(&ctxt->notifier), | |
255 | FD_READ | FD_ACCEPT | FD_CLOSE | | |
256 | FD_CONNECT | FD_WRITE | FD_OOB, NULL); | |
257 | #endif | |
848c7092 MAL |
258 | } |
259 | ||
3e0fad3a | 260 | static void net_slirp_unregister_poll_fd(int fd, void *opaque) |
f6e5aa36 | 261 | { |
21ac7284 MAL |
262 | #ifdef WIN32 |
263 | qemu_socket_unselect(fd, NULL); | |
264 | #endif | |
f6e5aa36 MAL |
265 | } |
266 | ||
3e0fad3a MAL |
267 | static void net_slirp_notify(void *opaque) |
268 | { | |
269 | qemu_notify_event(); | |
270 | } | |
271 | ||
d846b927 | 272 | static const SlirpCb slirp_cb = { |
625a526b | 273 | .send_packet = net_slirp_send_packet, |
2addc8fb | 274 | .guest_error = net_slirp_guest_error, |
e6dbff3f | 275 | .clock_get_ns = net_slirp_clock_get_ns, |
6222e55d PB |
276 | #if SLIRP_CHECK_VERSION(4,7,0) |
277 | .init_completed = net_slirp_init_completed, | |
278 | .timer_new_opaque = net_slirp_timer_new_opaque, | |
279 | #else | |
07abf6d4 | 280 | .timer_new = net_slirp_timer_new, |
6222e55d | 281 | #endif |
07abf6d4 MAL |
282 | .timer_free = net_slirp_timer_free, |
283 | .timer_mod = net_slirp_timer_mod, | |
848c7092 | 284 | .register_poll_fd = net_slirp_register_poll_fd, |
f6e5aa36 | 285 | .unregister_poll_fd = net_slirp_unregister_poll_fd, |
3e0fad3a | 286 | .notify = net_slirp_notify, |
d846b927 MAL |
287 | }; |
288 | ||
deaeb3f7 MAL |
289 | static int slirp_poll_to_gio(int events) |
290 | { | |
291 | int ret = 0; | |
292 | ||
293 | if (events & SLIRP_POLL_IN) { | |
294 | ret |= G_IO_IN; | |
295 | } | |
296 | if (events & SLIRP_POLL_OUT) { | |
297 | ret |= G_IO_OUT; | |
298 | } | |
299 | if (events & SLIRP_POLL_PRI) { | |
300 | ret |= G_IO_PRI; | |
301 | } | |
302 | if (events & SLIRP_POLL_ERR) { | |
303 | ret |= G_IO_ERR; | |
304 | } | |
305 | if (events & SLIRP_POLL_HUP) { | |
306 | ret |= G_IO_HUP; | |
307 | } | |
308 | ||
309 | return ret; | |
310 | } | |
311 | ||
312 | static int net_slirp_add_poll(int fd, int events, void *opaque) | |
313 | { | |
314 | GArray *pollfds = opaque; | |
315 | GPollFD pfd = { | |
316 | .fd = fd, | |
317 | .events = slirp_poll_to_gio(events), | |
318 | }; | |
319 | int idx = pollfds->len; | |
320 | g_array_append_val(pollfds, pfd); | |
321 | return idx; | |
322 | } | |
323 | ||
324 | static int slirp_gio_to_poll(int events) | |
325 | { | |
326 | int ret = 0; | |
327 | ||
328 | if (events & G_IO_IN) { | |
329 | ret |= SLIRP_POLL_IN; | |
330 | } | |
331 | if (events & G_IO_OUT) { | |
332 | ret |= SLIRP_POLL_OUT; | |
333 | } | |
334 | if (events & G_IO_PRI) { | |
335 | ret |= SLIRP_POLL_PRI; | |
336 | } | |
337 | if (events & G_IO_ERR) { | |
338 | ret |= SLIRP_POLL_ERR; | |
339 | } | |
340 | if (events & G_IO_HUP) { | |
341 | ret |= SLIRP_POLL_HUP; | |
342 | } | |
343 | ||
344 | return ret; | |
345 | } | |
346 | ||
347 | static int net_slirp_get_revents(int idx, void *opaque) | |
348 | { | |
349 | GArray *pollfds = opaque; | |
350 | ||
351 | return slirp_gio_to_poll(g_array_index(pollfds, GPollFD, idx).revents); | |
352 | } | |
353 | ||
1ab67b98 MAL |
354 | static void net_slirp_poll_notify(Notifier *notifier, void *data) |
355 | { | |
356 | MainLoopPoll *poll = data; | |
357 | SlirpState *s = container_of(notifier, SlirpState, poll_notifier); | |
358 | ||
359 | switch (poll->state) { | |
360 | case MAIN_LOOP_POLL_FILL: | |
deaeb3f7 MAL |
361 | slirp_pollfds_fill(s->slirp, &poll->timeout, |
362 | net_slirp_add_poll, poll->pollfds); | |
1ab67b98 MAL |
363 | break; |
364 | case MAIN_LOOP_POLL_OK: | |
365 | case MAIN_LOOP_POLL_ERR: | |
deaeb3f7 MAL |
366 | slirp_pollfds_poll(s->slirp, poll->state == MAIN_LOOP_POLL_ERR, |
367 | net_slirp_get_revents, poll->pollfds); | |
1ab67b98 MAL |
368 | break; |
369 | default: | |
370 | g_assert_not_reached(); | |
371 | } | |
372 | } | |
373 | ||
d8903441 MAL |
374 | static ssize_t |
375 | net_slirp_stream_read(void *buf, size_t size, void *opaque) | |
376 | { | |
377 | QEMUFile *f = opaque; | |
378 | ||
379 | return qemu_get_buffer(f, buf, size); | |
380 | } | |
381 | ||
382 | static ssize_t | |
383 | net_slirp_stream_write(const void *buf, size_t size, void *opaque) | |
384 | { | |
385 | QEMUFile *f = opaque; | |
386 | ||
387 | qemu_put_buffer(f, buf, size); | |
388 | if (qemu_file_get_error(f)) { | |
389 | return -1; | |
390 | } | |
391 | ||
392 | return size; | |
393 | } | |
394 | ||
395 | static int net_slirp_state_load(QEMUFile *f, void *opaque, int version_id) | |
396 | { | |
397 | Slirp *slirp = opaque; | |
398 | ||
399 | return slirp_state_load(slirp, version_id, net_slirp_stream_read, f); | |
400 | } | |
401 | ||
402 | static void net_slirp_state_save(QEMUFile *f, void *opaque) | |
403 | { | |
404 | Slirp *slirp = opaque; | |
405 | ||
406 | slirp_state_save(slirp, net_slirp_stream_write, f); | |
407 | } | |
408 | ||
409 | static SaveVMHandlers savevm_slirp_state = { | |
410 | .save_state = net_slirp_state_save, | |
411 | .load_state = net_slirp_state_load, | |
412 | }; | |
413 | ||
4e68f7a0 | 414 | static int net_slirp_init(NetClientState *peer, const char *model, |
68ac40d2 | 415 | const char *name, int restricted, |
0b11c036 ST |
416 | bool ipv4, const char *vnetwork, const char *vhost, |
417 | bool ipv6, const char *vprefix6, int vprefix6_len, | |
7aac531e | 418 | const char *vhost6, |
68ac40d2 MM |
419 | const char *vhostname, const char *tftp_export, |
420 | const char *bootfile, const char *vdhcp_start, | |
7aac531e YB |
421 | const char *vnameserver, const char *vnameserver6, |
422 | const char *smb_export, const char *vsmbserver, | |
f18d1375 | 423 | const char **dnssearch, const char *vdomainname, |
0fca92b9 | 424 | const char *tftp_server_name, |
f18d1375 | 425 | Error **errp) |
68ac40d2 MM |
426 | { |
427 | /* default settings according to historic slirp */ | |
428 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ | |
429 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
430 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ | |
431 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
432 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
7aac531e YB |
433 | struct in6_addr ip6_prefix; |
434 | struct in6_addr ip6_host; | |
435 | struct in6_addr ip6_dns; | |
35acbb30 | 436 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 MM |
437 | struct in_addr smbsrv = { .s_addr = 0 }; |
438 | #endif | |
bce63ded | 439 | SlirpConfig cfg = { 0 }; |
4e68f7a0 | 440 | NetClientState *nc; |
68ac40d2 MM |
441 | SlirpState *s; |
442 | char buf[20]; | |
443 | uint32_t addr; | |
444 | int shift; | |
445 | char *end; | |
446 | struct slirp_config_str *config; | |
447 | ||
0b11c036 | 448 | if (!ipv4 && (vnetwork || vhost || vnameserver)) { |
5c843af2 | 449 | error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); |
0b11c036 ST |
450 | return -1; |
451 | } | |
452 | ||
453 | if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { | |
5c843af2 | 454 | error_setg(errp, "IPv6 disabled but prefix/host6/dns6 provided"); |
0b11c036 ST |
455 | return -1; |
456 | } | |
457 | ||
458 | if (!ipv4 && !ipv6) { | |
459 | /* It doesn't make sense to disable both */ | |
5c843af2 | 460 | error_setg(errp, "IPv4 and IPv6 disabled"); |
0b11c036 ST |
461 | return -1; |
462 | } | |
463 | ||
68ac40d2 MM |
464 | if (vnetwork) { |
465 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
466 | if (!inet_aton(vnetwork, &net)) { | |
5c843af2 | 467 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
468 | return -1; |
469 | } | |
470 | addr = ntohl(net.s_addr); | |
471 | if (!(addr & 0x80000000)) { | |
472 | mask.s_addr = htonl(0xff000000); /* class A */ | |
473 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
474 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
475 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
476 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
477 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
478 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
479 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
480 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
481 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
482 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
483 | } else { | |
484 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ | |
485 | } | |
486 | } else { | |
487 | if (!inet_aton(buf, &net)) { | |
5c843af2 | 488 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
489 | return -1; |
490 | } | |
491 | shift = strtol(vnetwork, &end, 10); | |
492 | if (*end != '\0') { | |
493 | if (!inet_aton(vnetwork, &mask)) { | |
5c843af2 HP |
494 | error_setg(errp, |
495 | "Failed to parse netmask (trailing chars)"); | |
68ac40d2 MM |
496 | return -1; |
497 | } | |
498 | } else if (shift < 4 || shift > 32) { | |
5c843af2 HP |
499 | error_setg(errp, |
500 | "Invalid netmask provided (must be in range 4-32)"); | |
68ac40d2 MM |
501 | return -1; |
502 | } else { | |
503 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
504 | } | |
505 | } | |
506 | net.s_addr &= mask.s_addr; | |
507 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
508 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
509 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
510 | } | |
511 | ||
512 | if (vhost && !inet_aton(vhost, &host)) { | |
5c843af2 | 513 | error_setg(errp, "Failed to parse host"); |
68ac40d2 MM |
514 | return -1; |
515 | } | |
516 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
5c843af2 | 517 | error_setg(errp, "Host doesn't belong to network"); |
68ac40d2 MM |
518 | return -1; |
519 | } | |
520 | ||
68756ba8 | 521 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
5c843af2 | 522 | error_setg(errp, "Failed to parse DNS"); |
68ac40d2 MM |
523 | return -1; |
524 | } | |
120b721f | 525 | if (restricted && (dns.s_addr & mask.s_addr) != net.s_addr) { |
5c843af2 HP |
526 | error_setg(errp, "DNS doesn't belong to network"); |
527 | return -1; | |
528 | } | |
529 | if (dns.s_addr == host.s_addr) { | |
530 | error_setg(errp, "DNS must be different from host"); | |
68ac40d2 MM |
531 | return -1; |
532 | } | |
533 | ||
68756ba8 | 534 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
5c843af2 | 535 | error_setg(errp, "Failed to parse DHCP start address"); |
68ac40d2 MM |
536 | return -1; |
537 | } | |
5c843af2 HP |
538 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr) { |
539 | error_setg(errp, "DHCP doesn't belong to network"); | |
540 | return -1; | |
541 | } | |
542 | if (dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
0c373c01 | 543 | error_setg(errp, "DHCP must be different from host and DNS"); |
68ac40d2 MM |
544 | return -1; |
545 | } | |
546 | ||
35acbb30 | 547 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 548 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { |
5c843af2 | 549 | error_setg(errp, "Failed to parse SMB address"); |
68ac40d2 MM |
550 | return -1; |
551 | } | |
552 | #endif | |
553 | ||
7aac531e YB |
554 | if (!vprefix6) { |
555 | vprefix6 = "fec0::"; | |
556 | } | |
557 | if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { | |
5c843af2 | 558 | error_setg(errp, "Failed to parse IPv6 prefix"); |
7aac531e YB |
559 | return -1; |
560 | } | |
7aac531e YB |
561 | |
562 | if (!vprefix6_len) { | |
563 | vprefix6_len = 64; | |
564 | } | |
565 | if (vprefix6_len < 0 || vprefix6_len > 126) { | |
5c843af2 | 566 | error_setg(errp, |
178a0a5d SG |
567 | "Invalid IPv6 prefix provided " |
568 | "(IPv6 prefix length must be between 0 and 126)"); | |
7aac531e YB |
569 | return -1; |
570 | } | |
571 | ||
572 | if (vhost6) { | |
7aac531e | 573 | if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { |
5c843af2 | 574 | error_setg(errp, "Failed to parse IPv6 host"); |
7aac531e YB |
575 | return -1; |
576 | } | |
577 | if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { | |
5c843af2 | 578 | error_setg(errp, "IPv6 Host doesn't belong to network"); |
7aac531e YB |
579 | return -1; |
580 | } | |
7aac531e YB |
581 | } else { |
582 | ip6_host = ip6_prefix; | |
583 | ip6_host.s6_addr[15] |= 2; | |
584 | } | |
585 | ||
586 | if (vnameserver6) { | |
7aac531e | 587 | if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { |
5c843af2 | 588 | error_setg(errp, "Failed to parse IPv6 DNS"); |
7aac531e YB |
589 | return -1; |
590 | } | |
120b721f | 591 | if (restricted && !in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { |
5c843af2 | 592 | error_setg(errp, "IPv6 DNS doesn't belong to network"); |
7aac531e YB |
593 | return -1; |
594 | } | |
7aac531e YB |
595 | } else { |
596 | ip6_dns = ip6_prefix; | |
597 | ip6_dns.s6_addr[15] |= 3; | |
598 | } | |
599 | ||
f18d1375 BD |
600 | if (vdomainname && !*vdomainname) { |
601 | error_setg(errp, "'domainname' parameter cannot be empty"); | |
602 | return -1; | |
603 | } | |
604 | ||
6e157a03 FZ |
605 | if (vdomainname && strlen(vdomainname) > 255) { |
606 | error_setg(errp, "'domainname' parameter cannot exceed 255 bytes"); | |
607 | return -1; | |
608 | } | |
609 | ||
610 | if (vhostname && strlen(vhostname) > 255) { | |
611 | error_setg(errp, "'vhostname' parameter cannot exceed 255 bytes"); | |
612 | return -1; | |
613 | } | |
7aac531e | 614 | |
0fca92b9 FZ |
615 | if (tftp_server_name && strlen(tftp_server_name) > 255) { |
616 | error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes"); | |
617 | return -1; | |
618 | } | |
619 | ||
ab5f3f84 | 620 | nc = qemu_new_net_client(&net_slirp_info, peer, model, name); |
ce20b5be | 621 | |
53b85d95 LV |
622 | qemu_set_info_str(nc, "net=%s,restrict=%s", inet_ntoa(net), |
623 | restricted ? "on" : "off"); | |
d89b4f83 | 624 | |
ce20b5be MM |
625 | s = DO_UPCAST(SlirpState, nc, nc); |
626 | ||
6222e55d | 627 | cfg.version = SLIRP_CHECK_VERSION(4,7,0) ? 4 : 1; |
bce63ded PB |
628 | cfg.restricted = restricted; |
629 | cfg.in_enabled = ipv4; | |
630 | cfg.vnetwork = net; | |
631 | cfg.vnetmask = mask; | |
632 | cfg.vhost = host; | |
633 | cfg.in6_enabled = ipv6; | |
634 | cfg.vprefix_addr6 = ip6_prefix; | |
635 | cfg.vprefix_len = vprefix6_len; | |
636 | cfg.vhost6 = ip6_host; | |
637 | cfg.vhostname = vhostname; | |
638 | cfg.tftp_server_name = tftp_server_name; | |
639 | cfg.tftp_path = tftp_export; | |
640 | cfg.bootfile = bootfile; | |
641 | cfg.vdhcp_start = dhcp; | |
642 | cfg.vnameserver = dns; | |
643 | cfg.vnameserver6 = ip6_dns; | |
644 | cfg.vdnssearch = dnssearch; | |
645 | cfg.vdomainname = vdomainname; | |
646 | s->slirp = slirp_new(&cfg, &slirp_cb, s); | |
68ac40d2 MM |
647 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
648 | ||
d8903441 MAL |
649 | /* |
650 | * Make sure the current bitstream version of slirp is 4, to avoid | |
651 | * QEMU migration incompatibilities, if upstream slirp bumped the | |
652 | * version. | |
653 | * | |
654 | * FIXME: use bitfields of features? teach libslirp to save with | |
655 | * specific version? | |
656 | */ | |
657 | g_assert(slirp_state_version() == 4); | |
ce62df53 | 658 | register_savevm_live("slirp", 0, slirp_state_version(), |
d8903441 MAL |
659 | &savevm_slirp_state, s->slirp); |
660 | ||
1ab67b98 MAL |
661 | s->poll_notifier.notify = net_slirp_poll_notify; |
662 | main_loop_poll_add_notifier(&s->poll_notifier); | |
663 | ||
68ac40d2 MM |
664 | for (config = slirp_configs; config; config = config->next) { |
665 | if (config->flags & SLIRP_CFG_HOSTFWD) { | |
d18572dd | 666 | if (slirp_hostfwd(s, config->str, errp) < 0) { |
ce20b5be | 667 | goto error; |
5c843af2 | 668 | } |
68ac40d2 | 669 | } else { |
d18572dd | 670 | if (slirp_guestfwd(s, config->str, errp) < 0) { |
ce20b5be | 671 | goto error; |
5c843af2 | 672 | } |
68ac40d2 MM |
673 | } |
674 | } | |
35acbb30 | 675 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 676 | if (smb_export) { |
5c843af2 | 677 | if (slirp_smb(s, smb_export, smbsrv, errp) < 0) { |
ce20b5be | 678 | goto error; |
5c843af2 | 679 | } |
68ac40d2 MM |
680 | } |
681 | #endif | |
682 | ||
f6c2e66a PB |
683 | s->exit_notifier.notify = slirp_smb_exit; |
684 | qemu_add_exit_notifier(&s->exit_notifier); | |
68ac40d2 | 685 | return 0; |
ce20b5be MM |
686 | |
687 | error: | |
b20c6b9e | 688 | qemu_del_net_client(nc); |
ce20b5be | 689 | return -1; |
68ac40d2 MM |
690 | } |
691 | ||
b4983c57 | 692 | static SlirpState *slirp_lookup(Monitor *mon, const char *id) |
68ac40d2 | 693 | { |
b4983c57 TH |
694 | if (id) { |
695 | NetClientState *nc = qemu_find_netdev(id); | |
696 | if (!nc) { | |
697 | monitor_printf(mon, "unrecognized netdev id '%s'\n", id); | |
698 | return NULL; | |
68ac40d2 | 699 | } |
ce20b5be | 700 | if (strcmp(nc->model, "user")) { |
68ac40d2 MM |
701 | monitor_printf(mon, "invalid device specified\n"); |
702 | return NULL; | |
703 | } | |
ce20b5be | 704 | return DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
705 | } else { |
706 | if (QTAILQ_EMPTY(&slirp_stacks)) { | |
707 | monitor_printf(mon, "user mode network stack not in use\n"); | |
708 | return NULL; | |
709 | } | |
710 | return QTAILQ_FIRST(&slirp_stacks); | |
711 | } | |
712 | } | |
713 | ||
3e5a50d6 | 714 | void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
715 | { |
716 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
717 | int host_port; | |
e30e5eb6 | 718 | char buf[256]; |
68ac40d2 MM |
719 | const char *src_str, *p; |
720 | SlirpState *s; | |
721 | int is_udp = 0; | |
722 | int err; | |
723 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
724 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 725 | |
b4983c57 TH |
726 | if (arg2) { |
727 | s = slirp_lookup(mon, arg1); | |
93653066 | 728 | src_str = arg2; |
68ac40d2 | 729 | } else { |
b4983c57 | 730 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
731 | src_str = arg1; |
732 | } | |
733 | if (!s) { | |
734 | return; | |
735 | } | |
736 | ||
68ac40d2 | 737 | p = src_str; |
e30e5eb6 MA |
738 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
739 | goto fail_syntax; | |
740 | } | |
68ac40d2 MM |
741 | |
742 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
743 | is_udp = 0; | |
744 | } else if (!strcmp(buf, "udp")) { | |
745 | is_udp = 1; | |
746 | } else { | |
747 | goto fail_syntax; | |
748 | } | |
749 | ||
750 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
751 | goto fail_syntax; | |
752 | } | |
753 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
754 | goto fail_syntax; | |
755 | } | |
756 | ||
1fb3f7f2 NA |
757 | if (qemu_strtoi(p, NULL, 10, &host_port)) { |
758 | goto fail_syntax; | |
759 | } | |
68ac40d2 | 760 | |
70381662 | 761 | err = slirp_remove_hostfwd(s->slirp, is_udp, host_addr, host_port); |
68ac40d2 MM |
762 | |
763 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, | |
b15ba6c9 | 764 | err ? "not found" : "removed"); |
68ac40d2 MM |
765 | return; |
766 | ||
767 | fail_syntax: | |
768 | monitor_printf(mon, "invalid format\n"); | |
769 | } | |
770 | ||
d18572dd | 771 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp) |
68ac40d2 MM |
772 | { |
773 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
774 | struct in_addr guest_addr = { .s_addr = 0 }; | |
775 | int host_port, guest_port; | |
776 | const char *p; | |
777 | char buf[256]; | |
778 | int is_udp; | |
779 | char *end; | |
0e7e4fb0 | 780 | const char *fail_reason = "Unknown reason"; |
68ac40d2 MM |
781 | |
782 | p = redir_str; | |
783 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 784 | fail_reason = "No : separators"; |
68ac40d2 MM |
785 | goto fail_syntax; |
786 | } | |
787 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
788 | is_udp = 0; | |
789 | } else if (!strcmp(buf, "udp")) { | |
790 | is_udp = 1; | |
791 | } else { | |
0e7e4fb0 | 792 | fail_reason = "Bad protocol name"; |
68ac40d2 MM |
793 | goto fail_syntax; |
794 | } | |
795 | ||
d18572dd TH |
796 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
797 | fail_reason = "Missing : separator"; | |
798 | goto fail_syntax; | |
799 | } | |
800 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
801 | fail_reason = "Bad host address"; | |
802 | goto fail_syntax; | |
68ac40d2 MM |
803 | } |
804 | ||
d18572dd | 805 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { |
0e7e4fb0 | 806 | fail_reason = "Bad host port separator"; |
68ac40d2 MM |
807 | goto fail_syntax; |
808 | } | |
809 | host_port = strtol(buf, &end, 0); | |
0bed71ed | 810 | if (*end != '\0' || host_port < 0 || host_port > 65535) { |
0e7e4fb0 | 811 | fail_reason = "Bad host port"; |
68ac40d2 MM |
812 | goto fail_syntax; |
813 | } | |
814 | ||
815 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 816 | fail_reason = "Missing guest address"; |
68ac40d2 MM |
817 | goto fail_syntax; |
818 | } | |
819 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { | |
0e7e4fb0 | 820 | fail_reason = "Bad guest address"; |
68ac40d2 MM |
821 | goto fail_syntax; |
822 | } | |
823 | ||
824 | guest_port = strtol(p, &end, 0); | |
825 | if (*end != '\0' || guest_port < 1 || guest_port > 65535) { | |
0e7e4fb0 | 826 | fail_reason = "Bad guest port"; |
68ac40d2 MM |
827 | goto fail_syntax; |
828 | } | |
829 | ||
830 | if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr, | |
831 | guest_port) < 0) { | |
5c843af2 HP |
832 | error_setg(errp, "Could not set up host forwarding rule '%s'", |
833 | redir_str); | |
68ac40d2 MM |
834 | return -1; |
835 | } | |
836 | return 0; | |
837 | ||
838 | fail_syntax: | |
0e7e4fb0 DDAG |
839 | error_setg(errp, "Invalid host forwarding rule '%s' (%s)", redir_str, |
840 | fail_reason); | |
68ac40d2 MM |
841 | return -1; |
842 | } | |
843 | ||
3e5a50d6 | 844 | void hmp_hostfwd_add(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
845 | { |
846 | const char *redir_str; | |
847 | SlirpState *s; | |
848 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
849 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 850 | |
b4983c57 TH |
851 | if (arg2) { |
852 | s = slirp_lookup(mon, arg1); | |
93653066 | 853 | redir_str = arg2; |
68ac40d2 | 854 | } else { |
b4983c57 | 855 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
856 | redir_str = arg1; |
857 | } | |
858 | if (s) { | |
5c843af2 | 859 | Error *err = NULL; |
d18572dd | 860 | if (slirp_hostfwd(s, redir_str, &err) < 0) { |
5c843af2 HP |
861 | error_report_err(err); |
862 | } | |
68ac40d2 MM |
863 | } |
864 | ||
865 | } | |
866 | ||
35acbb30 | 867 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 MM |
868 | |
869 | /* automatic user mode samba server configuration */ | |
870 | static void slirp_smb_cleanup(SlirpState *s) | |
871 | { | |
5a01e99f | 872 | int ret; |
68ac40d2 | 873 | |
f95cc8b6 DDAG |
874 | if (s->smb_dir) { |
875 | gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir); | |
5a01e99f | 876 | ret = system(cmd); |
24ac07de | 877 | if (ret == -1 || !WIFEXITED(ret)) { |
1ecda02b | 878 | error_report("'%s' failed.", cmd); |
5a01e99f | 879 | } else if (WEXITSTATUS(ret)) { |
1ecda02b MA |
880 | error_report("'%s' failed. Error code: %d", |
881 | cmd, WEXITSTATUS(ret)); | |
5a01e99f | 882 | } |
f95cc8b6 DDAG |
883 | g_free(cmd); |
884 | g_free(s->smb_dir); | |
885 | s->smb_dir = NULL; | |
68ac40d2 MM |
886 | } |
887 | } | |
888 | ||
889 | static int slirp_smb(SlirpState* s, const char *exported_dir, | |
5c843af2 | 890 | struct in_addr vserver_addr, Error **errp) |
68ac40d2 | 891 | { |
f95cc8b6 DDAG |
892 | char *smb_conf; |
893 | char *smb_cmdline; | |
1cb1c5d1 | 894 | struct passwd *passwd; |
68ac40d2 MM |
895 | FILE *f; |
896 | ||
1cb1c5d1 JK |
897 | passwd = getpwuid(geteuid()); |
898 | if (!passwd) { | |
5c843af2 | 899 | error_setg(errp, "Failed to retrieve user name"); |
1cb1c5d1 JK |
900 | return -1; |
901 | } | |
902 | ||
927d811b | 903 | if (access(CONFIG_SMBD_COMMAND, F_OK)) { |
5c843af2 HP |
904 | error_setg(errp, "Could not find '%s', please install it", |
905 | CONFIG_SMBD_COMMAND); | |
927d811b DH |
906 | return -1; |
907 | } | |
908 | ||
909 | if (access(exported_dir, R_OK | X_OK)) { | |
5c843af2 HP |
910 | error_setg(errp, "Error accessing shared directory '%s': %s", |
911 | exported_dir, strerror(errno)); | |
927d811b DH |
912 | return -1; |
913 | } | |
914 | ||
f95cc8b6 DDAG |
915 | s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL); |
916 | if (!s->smb_dir) { | |
5c843af2 | 917 | error_setg(errp, "Could not create samba server dir"); |
68ac40d2 MM |
918 | return -1; |
919 | } | |
f95cc8b6 | 920 | smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf"); |
68ac40d2 MM |
921 | |
922 | f = fopen(smb_conf, "w"); | |
923 | if (!f) { | |
924 | slirp_smb_cleanup(s); | |
5c843af2 HP |
925 | error_setg(errp, |
926 | "Could not create samba server configuration file '%s'", | |
927 | smb_conf); | |
f95cc8b6 | 928 | g_free(smb_conf); |
68ac40d2 MM |
929 | return -1; |
930 | } | |
931 | fprintf(f, | |
932 | "[global]\n" | |
933 | "private dir=%s\n" | |
7912d04b PW |
934 | "interfaces=127.0.0.1\n" |
935 | "bind interfaces only=yes\n" | |
68ac40d2 MM |
936 | "pid directory=%s\n" |
937 | "lock directory=%s\n" | |
276eda57 | 938 | "state directory=%s\n" |
7912d04b | 939 | "cache directory=%s\n" |
b87b8a8b | 940 | "ncalrpc dir=%s/ncalrpc\n" |
68ac40d2 MM |
941 | "log file=%s/log.smbd\n" |
942 | "smb passwd file=%s/smbpasswd\n" | |
c2804ee6 MB |
943 | "security = user\n" |
944 | "map to guest = Bad User\n" | |
7912d04b PW |
945 | "load printers = no\n" |
946 | "printing = bsd\n" | |
947 | "disable spoolss = yes\n" | |
948 | "usershare max shares = 0\n" | |
68ac40d2 MM |
949 | "[qemu]\n" |
950 | "path=%s\n" | |
951 | "read only=no\n" | |
1cb1c5d1 JK |
952 | "guest ok=yes\n" |
953 | "force user=%s\n", | |
68ac40d2 MM |
954 | s->smb_dir, |
955 | s->smb_dir, | |
956 | s->smb_dir, | |
957 | s->smb_dir, | |
958 | s->smb_dir, | |
276eda57 | 959 | s->smb_dir, |
b87b8a8b | 960 | s->smb_dir, |
7912d04b | 961 | s->smb_dir, |
1cb1c5d1 JK |
962 | exported_dir, |
963 | passwd->pw_name | |
68ac40d2 MM |
964 | ); |
965 | fclose(f); | |
966 | ||
f95cc8b6 | 967 | smb_cmdline = g_strdup_printf("%s -l %s -s %s", |
44d8d2b2 | 968 | CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); |
f95cc8b6 | 969 | g_free(smb_conf); |
68ac40d2 | 970 | |
44b4ff24 MAL |
971 | if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || |
972 | slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { | |
68ac40d2 | 973 | slirp_smb_cleanup(s); |
f95cc8b6 | 974 | g_free(smb_cmdline); |
5c843af2 | 975 | error_setg(errp, "Conflicting/invalid smbserver address"); |
68ac40d2 MM |
976 | return -1; |
977 | } | |
f95cc8b6 | 978 | g_free(smb_cmdline); |
68ac40d2 MM |
979 | return 0; |
980 | } | |
981 | ||
35acbb30 | 982 | #endif /* defined(CONFIG_SMBD_COMMAND) */ |
68ac40d2 | 983 | |
68ac40d2 MM |
984 | static int guestfwd_can_read(void *opaque) |
985 | { | |
986 | struct GuestFwd *fwd = opaque; | |
987 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); | |
988 | } | |
989 | ||
990 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) | |
991 | { | |
992 | struct GuestFwd *fwd = opaque; | |
993 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); | |
994 | } | |
995 | ||
625a526b | 996 | static ssize_t guestfwd_write(const void *buf, size_t len, void *chr) |
44b4ff24 MAL |
997 | { |
998 | return qemu_chr_fe_write_all(chr, buf, len); | |
999 | } | |
1000 | ||
d18572dd | 1001 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) |
68ac40d2 | 1002 | { |
ffe02f55 | 1003 | /* TODO: IPv6 */ |
68ac40d2 MM |
1004 | struct in_addr server = { .s_addr = 0 }; |
1005 | struct GuestFwd *fwd; | |
1006 | const char *p; | |
1007 | char buf[128]; | |
1008 | char *end; | |
1009 | int port; | |
1010 | ||
1011 | p = config_str; | |
d18572dd TH |
1012 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
1013 | goto fail_syntax; | |
1014 | } | |
1015 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
1016 | goto fail_syntax; | |
1017 | } | |
1018 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1019 | goto fail_syntax; | |
1020 | } | |
1021 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
1022 | goto fail_syntax; | |
1023 | } | |
1024 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
1025 | goto fail_syntax; | |
68ac40d2 MM |
1026 | } |
1027 | port = strtol(buf, &end, 10); | |
1028 | if (*end != '\0' || port < 1 || port > 65535) { | |
1029 | goto fail_syntax; | |
1030 | } | |
1031 | ||
a9899996 | 1032 | snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); |
68ac40d2 | 1033 | |
3624730a | 1034 | if (g_str_has_prefix(p, "cmd:")) { |
44b4ff24 | 1035 | if (slirp_add_exec(s->slirp, &p[4], &server, port) < 0) { |
5c843af2 HP |
1036 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1037 | "forwarding rule '%s'", config_str); | |
b412eb61 AG |
1038 | return -1; |
1039 | } | |
1040 | } else { | |
32a6ebec | 1041 | Error *err = NULL; |
95e30b2a MAL |
1042 | /* |
1043 | * FIXME: sure we want to support implicit | |
1044 | * muxed monitors here? | |
1045 | */ | |
4ad6f6cb | 1046 | Chardev *chr = qemu_chr_new_mux_mon(buf, p, NULL); |
32a6ebec MAL |
1047 | |
1048 | if (!chr) { | |
5c843af2 HP |
1049 | error_setg(errp, "Could not open guest forwarding device '%s'", |
1050 | buf); | |
32a6ebec MAL |
1051 | return -1; |
1052 | } | |
1053 | ||
1054 | fwd = g_new(struct GuestFwd, 1); | |
1055 | qemu_chr_fe_init(&fwd->hd, chr, &err); | |
1056 | if (err) { | |
5c843af2 | 1057 | error_propagate(errp, err); |
8e207c32 | 1058 | object_unparent(OBJECT(chr)); |
b412eb61 AG |
1059 | g_free(fwd); |
1060 | return -1; | |
1061 | } | |
68ac40d2 | 1062 | |
44b4ff24 MAL |
1063 | if (slirp_add_guestfwd(s->slirp, guestfwd_write, &fwd->hd, |
1064 | &server, port) < 0) { | |
5c843af2 HP |
1065 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1066 | "forwarding rule '%s'", config_str); | |
8e207c32 | 1067 | qemu_chr_fe_deinit(&fwd->hd, true); |
b412eb61 AG |
1068 | g_free(fwd); |
1069 | return -1; | |
1070 | } | |
1071 | fwd->server = server; | |
1072 | fwd->port = port; | |
1073 | fwd->slirp = s->slirp; | |
1074 | ||
5345fdb4 | 1075 | qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, |
81517ba3 | 1076 | NULL, NULL, fwd, NULL, true); |
8d45a3b9 | 1077 | s->fwd = g_slist_append(s->fwd, fwd); |
b412eb61 | 1078 | } |
68ac40d2 MM |
1079 | return 0; |
1080 | ||
1081 | fail_syntax: | |
5c843af2 | 1082 | error_setg(errp, "Invalid guest forwarding rule '%s'", config_str); |
68ac40d2 MM |
1083 | return -1; |
1084 | } | |
1085 | ||
1ce6be24 | 1086 | void hmp_info_usernet(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
1087 | { |
1088 | SlirpState *s; | |
1089 | ||
1090 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { | |
90d87a33 | 1091 | int id; |
442da403 | 1092 | bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; |
b7f43bf2 MAL |
1093 | char *info = slirp_connection_info(s->slirp); |
1094 | monitor_printf(mon, "Hub %d (%s):\n%s", | |
442da403 | 1095 | got_hub_id ? id : -1, |
b7f43bf2 MAL |
1096 | s->nc.name, info); |
1097 | g_free(info); | |
68ac40d2 MM |
1098 | } |
1099 | } | |
1100 | ||
094f15c5 LE |
1101 | static void |
1102 | net_init_slirp_configs(const StringList *fwd, int flags) | |
68ac40d2 | 1103 | { |
094f15c5 LE |
1104 | while (fwd) { |
1105 | struct slirp_config_str *config; | |
68ac40d2 | 1106 | |
094f15c5 LE |
1107 | config = g_malloc0(sizeof(*config)); |
1108 | pstrcpy(config->str, sizeof(config->str), fwd->value->str); | |
1109 | config->flags = flags; | |
1110 | config->next = slirp_configs; | |
1111 | slirp_configs = config; | |
68ac40d2 | 1112 | |
094f15c5 | 1113 | fwd = fwd->next; |
68ac40d2 | 1114 | } |
68ac40d2 MM |
1115 | } |
1116 | ||
63d2960b KS |
1117 | static const char **slirp_dnssearch(const StringList *dnsname) |
1118 | { | |
1119 | const StringList *c = dnsname; | |
1120 | size_t i = 0, num_opts = 0; | |
1121 | const char **ret; | |
1122 | ||
1123 | while (c) { | |
1124 | num_opts++; | |
1125 | c = c->next; | |
1126 | } | |
1127 | ||
1128 | if (num_opts == 0) { | |
1129 | return NULL; | |
1130 | } | |
1131 | ||
1132 | ret = g_malloc((num_opts + 1) * sizeof(*ret)); | |
1133 | c = dnsname; | |
1134 | while (c) { | |
1135 | ret[i++] = c->value->str; | |
1136 | c = c->next; | |
1137 | } | |
1138 | ret[i] = NULL; | |
1139 | return ret; | |
1140 | } | |
1141 | ||
cebea510 | 1142 | int net_init_slirp(const Netdev *netdev, const char *name, |
a30ecde6 | 1143 | NetClientState *peer, Error **errp) |
68ac40d2 MM |
1144 | { |
1145 | struct slirp_config_str *config; | |
094f15c5 | 1146 | char *vnet; |
68ac40d2 | 1147 | int ret; |
094f15c5 | 1148 | const NetdevUserOptions *user; |
63d2960b | 1149 | const char **dnssearch; |
0b11c036 | 1150 | bool ipv4 = true, ipv6 = true; |
68ac40d2 | 1151 | |
f394b2e2 EB |
1152 | assert(netdev->type == NET_CLIENT_DRIVER_USER); |
1153 | user = &netdev->u.user; | |
68ac40d2 | 1154 | |
0b11c036 ST |
1155 | if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || |
1156 | (user->has_ipv4 && !user->ipv4)) { | |
1157 | ipv4 = 0; | |
1158 | } | |
1159 | if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || | |
1160 | (user->has_ipv6 && !user->ipv6)) { | |
1161 | ipv6 = 0; | |
1162 | } | |
1163 | ||
7480874a MA |
1164 | vnet = user->net ? g_strdup(user->net) : |
1165 | user->ip ? g_strdup_printf("%s/24", user->ip) : | |
094f15c5 | 1166 | NULL; |
68ac40d2 | 1167 | |
63d2960b KS |
1168 | dnssearch = slirp_dnssearch(user->dnssearch); |
1169 | ||
094f15c5 | 1170 | /* all optional fields are initialized to "all bits zero" */ |
68ac40d2 | 1171 | |
094f15c5 LE |
1172 | net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); |
1173 | net_init_slirp_configs(user->guestfwd, 0); | |
68ac40d2 | 1174 | |
0b11c036 ST |
1175 | ret = net_slirp_init(peer, "user", name, user->q_restrict, |
1176 | ipv4, vnet, user->host, | |
1177 | ipv6, user->ipv6_prefix, user->ipv6_prefixlen, | |
d8eb3864 | 1178 | user->ipv6_host, user->hostname, user->tftp, |
7aac531e | 1179 | user->bootfile, user->dhcpstart, |
d8eb3864 | 1180 | user->dns, user->ipv6_dns, user->smb, |
0fca92b9 FZ |
1181 | user->smbserver, dnssearch, user->domainname, |
1182 | user->tftp_server_name, errp); | |
68ac40d2 MM |
1183 | |
1184 | while (slirp_configs) { | |
1185 | config = slirp_configs; | |
1186 | slirp_configs = config->next; | |
7267c094 | 1187 | g_free(config); |
68ac40d2 MM |
1188 | } |
1189 | ||
7267c094 | 1190 | g_free(vnet); |
63d2960b | 1191 | g_free(dnssearch); |
68ac40d2 MM |
1192 | |
1193 | return ret; | |
1194 | } |