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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 | 48 | #include "migration/register.h" |
b23db4cd | 49 | #include "migration/vmstate.h" |
d8903441 | 50 | #include "migration/qemu-file-types.h" |
68ac40d2 MM |
51 | |
52 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
53 | { | |
54 | const char *p, *p1; | |
55 | int len; | |
56 | p = *pp; | |
57 | p1 = strchr(p, sep); | |
58 | if (!p1) | |
59 | return -1; | |
60 | len = p1 - p; | |
61 | p1++; | |
62 | if (buf_size > 0) { | |
63 | if (len > buf_size - 1) | |
64 | len = buf_size - 1; | |
65 | memcpy(buf, p, len); | |
66 | buf[len] = '\0'; | |
67 | } | |
68 | *pp = p1; | |
69 | return 0; | |
70 | } | |
71 | ||
72 | /* slirp network adapter */ | |
73 | ||
74 | #define SLIRP_CFG_HOSTFWD 1 | |
68ac40d2 MM |
75 | |
76 | struct slirp_config_str { | |
77 | struct slirp_config_str *next; | |
78 | int flags; | |
79 | char str[1024]; | |
68ac40d2 MM |
80 | }; |
81 | ||
8d45a3b9 MAL |
82 | struct GuestFwd { |
83 | CharBackend hd; | |
84 | struct in_addr server; | |
85 | int port; | |
86 | Slirp *slirp; | |
87 | }; | |
88 | ||
68ac40d2 | 89 | typedef struct SlirpState { |
4e68f7a0 | 90 | NetClientState nc; |
68ac40d2 | 91 | QTAILQ_ENTRY(SlirpState) entry; |
68ac40d2 | 92 | Slirp *slirp; |
1ab67b98 | 93 | Notifier poll_notifier; |
f6c2e66a | 94 | Notifier exit_notifier; |
35acbb30 | 95 | #if defined(CONFIG_SMBD_COMMAND) |
f95cc8b6 | 96 | gchar *smb_dir; |
68ac40d2 | 97 | #endif |
8d45a3b9 | 98 | GSList *fwd; |
68ac40d2 MM |
99 | } SlirpState; |
100 | ||
101 | static struct slirp_config_str *slirp_configs; | |
b58deb34 | 102 | static QTAILQ_HEAD(, SlirpState) slirp_stacks = |
68ac40d2 MM |
103 | QTAILQ_HEAD_INITIALIZER(slirp_stacks); |
104 | ||
d18572dd TH |
105 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp); |
106 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp); | |
68ac40d2 | 107 | |
35acbb30 | 108 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 109 | static int slirp_smb(SlirpState *s, const char *exported_dir, |
5c843af2 | 110 | struct in_addr vserver_addr, Error **errp); |
68ac40d2 MM |
111 | static void slirp_smb_cleanup(SlirpState *s); |
112 | #else | |
113 | static inline void slirp_smb_cleanup(SlirpState *s) { } | |
114 | #endif | |
115 | ||
625a526b MAL |
116 | static ssize_t net_slirp_send_packet(const void *pkt, size_t pkt_len, |
117 | void *opaque) | |
68ac40d2 MM |
118 | { |
119 | SlirpState *s = opaque; | |
969e50b6 BM |
120 | uint8_t min_pkt[ETH_ZLEN]; |
121 | size_t min_pktsz = sizeof(min_pkt); | |
122 | ||
bc38e31b | 123 | if (net_peer_needs_padding(&s->nc)) { |
969e50b6 BM |
124 | if (eth_pad_short_frame(min_pkt, &min_pktsz, pkt, pkt_len)) { |
125 | pkt = min_pkt; | |
126 | pkt_len = min_pktsz; | |
127 | } | |
128 | } | |
68ac40d2 | 129 | |
625a526b | 130 | return qemu_send_packet(&s->nc, pkt, pkt_len); |
68ac40d2 MM |
131 | } |
132 | ||
4e68f7a0 | 133 | static ssize_t net_slirp_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
68ac40d2 | 134 | { |
ce20b5be | 135 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
136 | |
137 | slirp_input(s->slirp, buf, size); | |
138 | ||
139 | return size; | |
140 | } | |
141 | ||
f6c2e66a PB |
142 | static void slirp_smb_exit(Notifier *n, void *data) |
143 | { | |
144 | SlirpState *s = container_of(n, SlirpState, exit_notifier); | |
145 | slirp_smb_cleanup(s); | |
146 | } | |
147 | ||
8d45a3b9 MAL |
148 | static void slirp_free_fwd(gpointer data) |
149 | { | |
150 | struct GuestFwd *fwd = data; | |
151 | ||
152 | qemu_chr_fe_deinit(&fwd->hd, true); | |
153 | g_free(data); | |
154 | } | |
155 | ||
4e68f7a0 | 156 | static void net_slirp_cleanup(NetClientState *nc) |
68ac40d2 | 157 | { |
ce20b5be | 158 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 | 159 | |
8d45a3b9 | 160 | g_slist_free_full(s->fwd, slirp_free_fwd); |
1ab67b98 | 161 | main_loop_poll_remove_notifier(&s->poll_notifier); |
d8903441 | 162 | unregister_savevm(NULL, "slirp", s->slirp); |
68ac40d2 | 163 | slirp_cleanup(s->slirp); |
67f3280c MAL |
164 | if (s->exit_notifier.notify) { |
165 | qemu_remove_exit_notifier(&s->exit_notifier); | |
166 | } | |
68ac40d2 MM |
167 | slirp_smb_cleanup(s); |
168 | QTAILQ_REMOVE(&slirp_stacks, s, entry); | |
68ac40d2 MM |
169 | } |
170 | ||
ce20b5be | 171 | static NetClientInfo net_slirp_info = { |
f394b2e2 | 172 | .type = NET_CLIENT_DRIVER_USER, |
ce20b5be MM |
173 | .size = sizeof(SlirpState), |
174 | .receive = net_slirp_receive, | |
175 | .cleanup = net_slirp_cleanup, | |
176 | }; | |
177 | ||
3e0fad3a | 178 | static void net_slirp_guest_error(const char *msg, void *opaque) |
2addc8fb MAL |
179 | { |
180 | qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); | |
181 | } | |
182 | ||
3e0fad3a | 183 | static int64_t net_slirp_clock_get_ns(void *opaque) |
e6dbff3f MAL |
184 | { |
185 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); | |
186 | } | |
187 | ||
6222e55d | 188 | typedef struct SlirpTimer SlirpTimer; |
ad2e5b87 PB |
189 | struct SlirpTimer { |
190 | QEMUTimer timer; | |
6222e55d PB |
191 | #if SLIRP_CHECK_VERSION(4,7,0) |
192 | Slirp *slirp; | |
193 | SlirpTimerId id; | |
194 | void *cb_opaque; | |
195 | #endif | |
196 | }; | |
197 | ||
198 | #if SLIRP_CHECK_VERSION(4,7,0) | |
199 | static void net_slirp_init_completed(Slirp *slirp, void *opaque) | |
200 | { | |
201 | SlirpState *s = opaque; | |
202 | s->slirp = slirp; | |
ad2e5b87 PB |
203 | } |
204 | ||
6222e55d PB |
205 | static void net_slirp_timer_cb(void *opaque) |
206 | { | |
207 | SlirpTimer *t = opaque; | |
208 | slirp_handle_timer(t->slirp, t->id, t->cb_opaque); | |
209 | } | |
210 | ||
211 | static void *net_slirp_timer_new_opaque(SlirpTimerId id, | |
212 | void *cb_opaque, void *opaque) | |
213 | { | |
214 | SlirpState *s = opaque; | |
215 | SlirpTimer *t = g_new(SlirpTimer, 1); | |
216 | t->slirp = s->slirp; | |
217 | t->id = id; | |
218 | t->cb_opaque = cb_opaque; | |
219 | timer_init_full(&t->timer, NULL, QEMU_CLOCK_VIRTUAL, | |
220 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
221 | net_slirp_timer_cb, t); | |
222 | return t; | |
223 | } | |
224 | #else | |
3e0fad3a MAL |
225 | static void *net_slirp_timer_new(SlirpTimerCb cb, |
226 | void *cb_opaque, void *opaque) | |
07abf6d4 | 227 | { |
ad2e5b87 PB |
228 | SlirpTimer *t = g_new(SlirpTimer, 1); |
229 | timer_init_full(&t->timer, NULL, QEMU_CLOCK_VIRTUAL, | |
230 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
231 | cb, cb_opaque); | |
232 | return t; | |
07abf6d4 | 233 | } |
6222e55d | 234 | #endif |
07abf6d4 | 235 | |
3e0fad3a | 236 | static void net_slirp_timer_free(void *timer, void *opaque) |
07abf6d4 | 237 | { |
ad2e5b87 PB |
238 | SlirpTimer *t = timer; |
239 | timer_del(&t->timer); | |
240 | g_free(t); | |
07abf6d4 MAL |
241 | } |
242 | ||
3e0fad3a MAL |
243 | static void net_slirp_timer_mod(void *timer, int64_t expire_timer, |
244 | void *opaque) | |
07abf6d4 | 245 | { |
ad2e5b87 PB |
246 | SlirpTimer *t = timer; |
247 | timer_mod(&t->timer, expire_timer); | |
07abf6d4 MAL |
248 | } |
249 | ||
3e0fad3a | 250 | static void net_slirp_register_poll_fd(int fd, void *opaque) |
848c7092 | 251 | { |
faa4ec16 MAL |
252 | #ifdef WIN32 |
253 | AioContext *ctxt = qemu_get_aio_context(); | |
254 | ||
fd3c3333 | 255 | if (WSAEventSelect(fd, event_notifier_get_handle(&ctxt->notifier), |
faa4ec16 | 256 | FD_READ | FD_ACCEPT | FD_CLOSE | |
fd3c3333 MAL |
257 | FD_CONNECT | FD_WRITE | FD_OOB) != 0) { |
258 | error_setg_win32(&error_warn, WSAGetLastError(), "failed to WSAEventSelect()"); | |
259 | } | |
faa4ec16 | 260 | #endif |
848c7092 MAL |
261 | } |
262 | ||
3e0fad3a | 263 | static void net_slirp_unregister_poll_fd(int fd, void *opaque) |
f6e5aa36 | 264 | { |
21ac7284 | 265 | #ifdef WIN32 |
fd3c3333 MAL |
266 | if (WSAEventSelect(fd, NULL, 0) != 0) { |
267 | error_setg_win32(&error_warn, WSAGetLastError(), "failed to WSAEventSelect()"); | |
268 | } | |
21ac7284 | 269 | #endif |
f6e5aa36 MAL |
270 | } |
271 | ||
3e0fad3a MAL |
272 | static void net_slirp_notify(void *opaque) |
273 | { | |
274 | qemu_notify_event(); | |
275 | } | |
276 | ||
d846b927 | 277 | static const SlirpCb slirp_cb = { |
625a526b | 278 | .send_packet = net_slirp_send_packet, |
2addc8fb | 279 | .guest_error = net_slirp_guest_error, |
e6dbff3f | 280 | .clock_get_ns = net_slirp_clock_get_ns, |
6222e55d PB |
281 | #if SLIRP_CHECK_VERSION(4,7,0) |
282 | .init_completed = net_slirp_init_completed, | |
283 | .timer_new_opaque = net_slirp_timer_new_opaque, | |
284 | #else | |
07abf6d4 | 285 | .timer_new = net_slirp_timer_new, |
6222e55d | 286 | #endif |
07abf6d4 MAL |
287 | .timer_free = net_slirp_timer_free, |
288 | .timer_mod = net_slirp_timer_mod, | |
848c7092 | 289 | .register_poll_fd = net_slirp_register_poll_fd, |
f6e5aa36 | 290 | .unregister_poll_fd = net_slirp_unregister_poll_fd, |
3e0fad3a | 291 | .notify = net_slirp_notify, |
d846b927 MAL |
292 | }; |
293 | ||
deaeb3f7 MAL |
294 | static int slirp_poll_to_gio(int events) |
295 | { | |
296 | int ret = 0; | |
297 | ||
298 | if (events & SLIRP_POLL_IN) { | |
299 | ret |= G_IO_IN; | |
300 | } | |
301 | if (events & SLIRP_POLL_OUT) { | |
302 | ret |= G_IO_OUT; | |
303 | } | |
304 | if (events & SLIRP_POLL_PRI) { | |
305 | ret |= G_IO_PRI; | |
306 | } | |
307 | if (events & SLIRP_POLL_ERR) { | |
308 | ret |= G_IO_ERR; | |
309 | } | |
310 | if (events & SLIRP_POLL_HUP) { | |
311 | ret |= G_IO_HUP; | |
312 | } | |
313 | ||
314 | return ret; | |
315 | } | |
316 | ||
317 | static int net_slirp_add_poll(int fd, int events, void *opaque) | |
318 | { | |
319 | GArray *pollfds = opaque; | |
320 | GPollFD pfd = { | |
321 | .fd = fd, | |
322 | .events = slirp_poll_to_gio(events), | |
323 | }; | |
324 | int idx = pollfds->len; | |
325 | g_array_append_val(pollfds, pfd); | |
326 | return idx; | |
327 | } | |
328 | ||
329 | static int slirp_gio_to_poll(int events) | |
330 | { | |
331 | int ret = 0; | |
332 | ||
333 | if (events & G_IO_IN) { | |
334 | ret |= SLIRP_POLL_IN; | |
335 | } | |
336 | if (events & G_IO_OUT) { | |
337 | ret |= SLIRP_POLL_OUT; | |
338 | } | |
339 | if (events & G_IO_PRI) { | |
340 | ret |= SLIRP_POLL_PRI; | |
341 | } | |
342 | if (events & G_IO_ERR) { | |
343 | ret |= SLIRP_POLL_ERR; | |
344 | } | |
345 | if (events & G_IO_HUP) { | |
346 | ret |= SLIRP_POLL_HUP; | |
347 | } | |
348 | ||
349 | return ret; | |
350 | } | |
351 | ||
352 | static int net_slirp_get_revents(int idx, void *opaque) | |
353 | { | |
354 | GArray *pollfds = opaque; | |
355 | ||
356 | return slirp_gio_to_poll(g_array_index(pollfds, GPollFD, idx).revents); | |
357 | } | |
358 | ||
1ab67b98 MAL |
359 | static void net_slirp_poll_notify(Notifier *notifier, void *data) |
360 | { | |
361 | MainLoopPoll *poll = data; | |
362 | SlirpState *s = container_of(notifier, SlirpState, poll_notifier); | |
363 | ||
364 | switch (poll->state) { | |
365 | case MAIN_LOOP_POLL_FILL: | |
deaeb3f7 MAL |
366 | slirp_pollfds_fill(s->slirp, &poll->timeout, |
367 | net_slirp_add_poll, poll->pollfds); | |
1ab67b98 MAL |
368 | break; |
369 | case MAIN_LOOP_POLL_OK: | |
370 | case MAIN_LOOP_POLL_ERR: | |
deaeb3f7 MAL |
371 | slirp_pollfds_poll(s->slirp, poll->state == MAIN_LOOP_POLL_ERR, |
372 | net_slirp_get_revents, poll->pollfds); | |
1ab67b98 MAL |
373 | break; |
374 | default: | |
375 | g_assert_not_reached(); | |
376 | } | |
377 | } | |
378 | ||
d8903441 MAL |
379 | static ssize_t |
380 | net_slirp_stream_read(void *buf, size_t size, void *opaque) | |
381 | { | |
382 | QEMUFile *f = opaque; | |
383 | ||
384 | return qemu_get_buffer(f, buf, size); | |
385 | } | |
386 | ||
387 | static ssize_t | |
388 | net_slirp_stream_write(const void *buf, size_t size, void *opaque) | |
389 | { | |
390 | QEMUFile *f = opaque; | |
391 | ||
392 | qemu_put_buffer(f, buf, size); | |
393 | if (qemu_file_get_error(f)) { | |
394 | return -1; | |
395 | } | |
396 | ||
397 | return size; | |
398 | } | |
399 | ||
400 | static int net_slirp_state_load(QEMUFile *f, void *opaque, int version_id) | |
401 | { | |
402 | Slirp *slirp = opaque; | |
403 | ||
404 | return slirp_state_load(slirp, version_id, net_slirp_stream_read, f); | |
405 | } | |
406 | ||
407 | static void net_slirp_state_save(QEMUFile *f, void *opaque) | |
408 | { | |
409 | Slirp *slirp = opaque; | |
410 | ||
411 | slirp_state_save(slirp, net_slirp_stream_write, f); | |
412 | } | |
413 | ||
414 | static SaveVMHandlers savevm_slirp_state = { | |
415 | .save_state = net_slirp_state_save, | |
416 | .load_state = net_slirp_state_load, | |
417 | }; | |
418 | ||
4e68f7a0 | 419 | static int net_slirp_init(NetClientState *peer, const char *model, |
68ac40d2 | 420 | const char *name, int restricted, |
0b11c036 ST |
421 | bool ipv4, const char *vnetwork, const char *vhost, |
422 | bool ipv6, const char *vprefix6, int vprefix6_len, | |
7aac531e | 423 | const char *vhost6, |
68ac40d2 MM |
424 | const char *vhostname, const char *tftp_export, |
425 | const char *bootfile, const char *vdhcp_start, | |
7aac531e YB |
426 | const char *vnameserver, const char *vnameserver6, |
427 | const char *smb_export, const char *vsmbserver, | |
f18d1375 | 428 | const char **dnssearch, const char *vdomainname, |
0fca92b9 | 429 | const char *tftp_server_name, |
f18d1375 | 430 | Error **errp) |
68ac40d2 MM |
431 | { |
432 | /* default settings according to historic slirp */ | |
433 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ | |
434 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
435 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ | |
436 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
437 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
7aac531e YB |
438 | struct in6_addr ip6_prefix; |
439 | struct in6_addr ip6_host; | |
440 | struct in6_addr ip6_dns; | |
35acbb30 | 441 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 MM |
442 | struct in_addr smbsrv = { .s_addr = 0 }; |
443 | #endif | |
bce63ded | 444 | SlirpConfig cfg = { 0 }; |
4e68f7a0 | 445 | NetClientState *nc; |
68ac40d2 MM |
446 | SlirpState *s; |
447 | char buf[20]; | |
448 | uint32_t addr; | |
449 | int shift; | |
450 | char *end; | |
451 | struct slirp_config_str *config; | |
452 | ||
0b11c036 | 453 | if (!ipv4 && (vnetwork || vhost || vnameserver)) { |
5c843af2 | 454 | error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); |
0b11c036 ST |
455 | return -1; |
456 | } | |
457 | ||
458 | if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { | |
5c843af2 | 459 | error_setg(errp, "IPv6 disabled but prefix/host6/dns6 provided"); |
0b11c036 ST |
460 | return -1; |
461 | } | |
462 | ||
463 | if (!ipv4 && !ipv6) { | |
464 | /* It doesn't make sense to disable both */ | |
5c843af2 | 465 | error_setg(errp, "IPv4 and IPv6 disabled"); |
0b11c036 ST |
466 | return -1; |
467 | } | |
468 | ||
68ac40d2 MM |
469 | if (vnetwork) { |
470 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
471 | if (!inet_aton(vnetwork, &net)) { | |
5c843af2 | 472 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
473 | return -1; |
474 | } | |
475 | addr = ntohl(net.s_addr); | |
476 | if (!(addr & 0x80000000)) { | |
477 | mask.s_addr = htonl(0xff000000); /* class A */ | |
478 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
479 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
480 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
481 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
482 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
483 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
484 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
485 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
486 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
487 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
488 | } else { | |
489 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ | |
490 | } | |
491 | } else { | |
492 | if (!inet_aton(buf, &net)) { | |
5c843af2 | 493 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
494 | return -1; |
495 | } | |
496 | shift = strtol(vnetwork, &end, 10); | |
497 | if (*end != '\0') { | |
498 | if (!inet_aton(vnetwork, &mask)) { | |
5c843af2 HP |
499 | error_setg(errp, |
500 | "Failed to parse netmask (trailing chars)"); | |
68ac40d2 MM |
501 | return -1; |
502 | } | |
503 | } else if (shift < 4 || shift > 32) { | |
5c843af2 HP |
504 | error_setg(errp, |
505 | "Invalid netmask provided (must be in range 4-32)"); | |
68ac40d2 MM |
506 | return -1; |
507 | } else { | |
508 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
509 | } | |
510 | } | |
511 | net.s_addr &= mask.s_addr; | |
512 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
513 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
514 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
515 | } | |
516 | ||
517 | if (vhost && !inet_aton(vhost, &host)) { | |
5c843af2 | 518 | error_setg(errp, "Failed to parse host"); |
68ac40d2 MM |
519 | return -1; |
520 | } | |
521 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
5c843af2 | 522 | error_setg(errp, "Host doesn't belong to network"); |
68ac40d2 MM |
523 | return -1; |
524 | } | |
525 | ||
68756ba8 | 526 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
5c843af2 | 527 | error_setg(errp, "Failed to parse DNS"); |
68ac40d2 MM |
528 | return -1; |
529 | } | |
120b721f | 530 | if (restricted && (dns.s_addr & mask.s_addr) != net.s_addr) { |
5c843af2 HP |
531 | error_setg(errp, "DNS doesn't belong to network"); |
532 | return -1; | |
533 | } | |
534 | if (dns.s_addr == host.s_addr) { | |
535 | error_setg(errp, "DNS must be different from host"); | |
68ac40d2 MM |
536 | return -1; |
537 | } | |
538 | ||
68756ba8 | 539 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
5c843af2 | 540 | error_setg(errp, "Failed to parse DHCP start address"); |
68ac40d2 MM |
541 | return -1; |
542 | } | |
5c843af2 HP |
543 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr) { |
544 | error_setg(errp, "DHCP doesn't belong to network"); | |
545 | return -1; | |
546 | } | |
547 | if (dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
0c373c01 | 548 | error_setg(errp, "DHCP must be different from host and DNS"); |
68ac40d2 MM |
549 | return -1; |
550 | } | |
551 | ||
35acbb30 | 552 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 553 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { |
5c843af2 | 554 | error_setg(errp, "Failed to parse SMB address"); |
68ac40d2 MM |
555 | return -1; |
556 | } | |
557 | #endif | |
558 | ||
7aac531e YB |
559 | if (!vprefix6) { |
560 | vprefix6 = "fec0::"; | |
561 | } | |
562 | if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { | |
5c843af2 | 563 | error_setg(errp, "Failed to parse IPv6 prefix"); |
7aac531e YB |
564 | return -1; |
565 | } | |
7aac531e YB |
566 | |
567 | if (!vprefix6_len) { | |
568 | vprefix6_len = 64; | |
569 | } | |
570 | if (vprefix6_len < 0 || vprefix6_len > 126) { | |
5c843af2 | 571 | error_setg(errp, |
178a0a5d SG |
572 | "Invalid IPv6 prefix provided " |
573 | "(IPv6 prefix length must be between 0 and 126)"); | |
7aac531e YB |
574 | return -1; |
575 | } | |
576 | ||
577 | if (vhost6) { | |
7aac531e | 578 | if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { |
5c843af2 | 579 | error_setg(errp, "Failed to parse IPv6 host"); |
7aac531e YB |
580 | return -1; |
581 | } | |
582 | if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { | |
5c843af2 | 583 | error_setg(errp, "IPv6 Host doesn't belong to network"); |
7aac531e YB |
584 | return -1; |
585 | } | |
7aac531e YB |
586 | } else { |
587 | ip6_host = ip6_prefix; | |
588 | ip6_host.s6_addr[15] |= 2; | |
589 | } | |
590 | ||
591 | if (vnameserver6) { | |
7aac531e | 592 | if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { |
5c843af2 | 593 | error_setg(errp, "Failed to parse IPv6 DNS"); |
7aac531e YB |
594 | return -1; |
595 | } | |
120b721f | 596 | if (restricted && !in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { |
5c843af2 | 597 | error_setg(errp, "IPv6 DNS doesn't belong to network"); |
7aac531e YB |
598 | return -1; |
599 | } | |
7aac531e YB |
600 | } else { |
601 | ip6_dns = ip6_prefix; | |
602 | ip6_dns.s6_addr[15] |= 3; | |
603 | } | |
604 | ||
f18d1375 BD |
605 | if (vdomainname && !*vdomainname) { |
606 | error_setg(errp, "'domainname' parameter cannot be empty"); | |
607 | return -1; | |
608 | } | |
609 | ||
6e157a03 FZ |
610 | if (vdomainname && strlen(vdomainname) > 255) { |
611 | error_setg(errp, "'domainname' parameter cannot exceed 255 bytes"); | |
612 | return -1; | |
613 | } | |
614 | ||
615 | if (vhostname && strlen(vhostname) > 255) { | |
616 | error_setg(errp, "'vhostname' parameter cannot exceed 255 bytes"); | |
617 | return -1; | |
618 | } | |
7aac531e | 619 | |
0fca92b9 FZ |
620 | if (tftp_server_name && strlen(tftp_server_name) > 255) { |
621 | error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes"); | |
622 | return -1; | |
623 | } | |
624 | ||
ab5f3f84 | 625 | nc = qemu_new_net_client(&net_slirp_info, peer, model, name); |
ce20b5be | 626 | |
53b85d95 LV |
627 | qemu_set_info_str(nc, "net=%s,restrict=%s", inet_ntoa(net), |
628 | restricted ? "on" : "off"); | |
d89b4f83 | 629 | |
ce20b5be MM |
630 | s = DO_UPCAST(SlirpState, nc, nc); |
631 | ||
6222e55d | 632 | cfg.version = SLIRP_CHECK_VERSION(4,7,0) ? 4 : 1; |
bce63ded PB |
633 | cfg.restricted = restricted; |
634 | cfg.in_enabled = ipv4; | |
635 | cfg.vnetwork = net; | |
636 | cfg.vnetmask = mask; | |
637 | cfg.vhost = host; | |
638 | cfg.in6_enabled = ipv6; | |
639 | cfg.vprefix_addr6 = ip6_prefix; | |
640 | cfg.vprefix_len = vprefix6_len; | |
641 | cfg.vhost6 = ip6_host; | |
642 | cfg.vhostname = vhostname; | |
643 | cfg.tftp_server_name = tftp_server_name; | |
644 | cfg.tftp_path = tftp_export; | |
645 | cfg.bootfile = bootfile; | |
646 | cfg.vdhcp_start = dhcp; | |
647 | cfg.vnameserver = dns; | |
648 | cfg.vnameserver6 = ip6_dns; | |
649 | cfg.vdnssearch = dnssearch; | |
650 | cfg.vdomainname = vdomainname; | |
651 | s->slirp = slirp_new(&cfg, &slirp_cb, s); | |
68ac40d2 MM |
652 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
653 | ||
d8903441 MAL |
654 | /* |
655 | * Make sure the current bitstream version of slirp is 4, to avoid | |
656 | * QEMU migration incompatibilities, if upstream slirp bumped the | |
657 | * version. | |
658 | * | |
659 | * FIXME: use bitfields of features? teach libslirp to save with | |
660 | * specific version? | |
661 | */ | |
662 | g_assert(slirp_state_version() == 4); | |
b23db4cd JQ |
663 | register_savevm_live("slirp", VMSTATE_INSTANCE_ID_ANY, |
664 | slirp_state_version(), &savevm_slirp_state, s->slirp); | |
d8903441 | 665 | |
1ab67b98 MAL |
666 | s->poll_notifier.notify = net_slirp_poll_notify; |
667 | main_loop_poll_add_notifier(&s->poll_notifier); | |
668 | ||
68ac40d2 MM |
669 | for (config = slirp_configs; config; config = config->next) { |
670 | if (config->flags & SLIRP_CFG_HOSTFWD) { | |
d18572dd | 671 | if (slirp_hostfwd(s, config->str, errp) < 0) { |
ce20b5be | 672 | goto error; |
5c843af2 | 673 | } |
68ac40d2 | 674 | } else { |
d18572dd | 675 | if (slirp_guestfwd(s, config->str, errp) < 0) { |
ce20b5be | 676 | goto error; |
5c843af2 | 677 | } |
68ac40d2 MM |
678 | } |
679 | } | |
35acbb30 | 680 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 | 681 | if (smb_export) { |
5c843af2 | 682 | if (slirp_smb(s, smb_export, smbsrv, errp) < 0) { |
ce20b5be | 683 | goto error; |
5c843af2 | 684 | } |
68ac40d2 MM |
685 | } |
686 | #endif | |
687 | ||
f6c2e66a PB |
688 | s->exit_notifier.notify = slirp_smb_exit; |
689 | qemu_add_exit_notifier(&s->exit_notifier); | |
68ac40d2 | 690 | return 0; |
ce20b5be MM |
691 | |
692 | error: | |
b20c6b9e | 693 | qemu_del_net_client(nc); |
ce20b5be | 694 | return -1; |
68ac40d2 MM |
695 | } |
696 | ||
b4983c57 | 697 | static SlirpState *slirp_lookup(Monitor *mon, const char *id) |
68ac40d2 | 698 | { |
b4983c57 TH |
699 | if (id) { |
700 | NetClientState *nc = qemu_find_netdev(id); | |
701 | if (!nc) { | |
702 | monitor_printf(mon, "unrecognized netdev id '%s'\n", id); | |
703 | return NULL; | |
68ac40d2 | 704 | } |
ce20b5be | 705 | if (strcmp(nc->model, "user")) { |
68ac40d2 MM |
706 | monitor_printf(mon, "invalid device specified\n"); |
707 | return NULL; | |
708 | } | |
ce20b5be | 709 | return DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
710 | } else { |
711 | if (QTAILQ_EMPTY(&slirp_stacks)) { | |
712 | monitor_printf(mon, "user mode network stack not in use\n"); | |
713 | return NULL; | |
714 | } | |
715 | return QTAILQ_FIRST(&slirp_stacks); | |
716 | } | |
717 | } | |
718 | ||
3e5a50d6 | 719 | void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
68ac40d2 | 720 | { |
03555199 NN |
721 | struct sockaddr_in host_addr = { |
722 | .sin_family = AF_INET, | |
723 | .sin_addr = { | |
724 | .s_addr = INADDR_ANY, | |
725 | }, | |
726 | }; | |
68ac40d2 | 727 | int host_port; |
e30e5eb6 | 728 | char buf[256]; |
68ac40d2 MM |
729 | const char *src_str, *p; |
730 | SlirpState *s; | |
731 | int is_udp = 0; | |
732 | int err; | |
733 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
734 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 735 | |
b4983c57 TH |
736 | if (arg2) { |
737 | s = slirp_lookup(mon, arg1); | |
93653066 | 738 | src_str = arg2; |
68ac40d2 | 739 | } else { |
b4983c57 | 740 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
741 | src_str = arg1; |
742 | } | |
743 | if (!s) { | |
744 | return; | |
745 | } | |
746 | ||
68ac40d2 | 747 | p = src_str; |
e30e5eb6 MA |
748 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
749 | goto fail_syntax; | |
750 | } | |
68ac40d2 MM |
751 | |
752 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
753 | is_udp = 0; | |
754 | } else if (!strcmp(buf, "udp")) { | |
755 | is_udp = 1; | |
756 | } else { | |
757 | goto fail_syntax; | |
758 | } | |
759 | ||
760 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
761 | goto fail_syntax; | |
762 | } | |
03555199 | 763 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr.sin_addr)) { |
68ac40d2 MM |
764 | goto fail_syntax; |
765 | } | |
766 | ||
1fb3f7f2 NA |
767 | if (qemu_strtoi(p, NULL, 10, &host_port)) { |
768 | goto fail_syntax; | |
769 | } | |
03555199 | 770 | host_addr.sin_port = htons(host_port); |
68ac40d2 | 771 | |
03555199 NN |
772 | #if SLIRP_CHECK_VERSION(4, 5, 0) |
773 | err = slirp_remove_hostxfwd(s->slirp, (struct sockaddr *) &host_addr, | |
774 | sizeof(host_addr), is_udp ? SLIRP_HOSTFWD_UDP : 0); | |
775 | #else | |
776 | err = slirp_remove_hostfwd(s->slirp, is_udp, host_addr.sin_addr, host_port); | |
777 | #endif | |
68ac40d2 MM |
778 | |
779 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, | |
b15ba6c9 | 780 | err ? "not found" : "removed"); |
68ac40d2 MM |
781 | return; |
782 | ||
783 | fail_syntax: | |
784 | monitor_printf(mon, "invalid format\n"); | |
785 | } | |
786 | ||
d18572dd | 787 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp) |
68ac40d2 | 788 | { |
03555199 NN |
789 | struct sockaddr_in host_addr = { |
790 | .sin_family = AF_INET, | |
791 | .sin_addr = { | |
792 | .s_addr = INADDR_ANY, | |
793 | }, | |
794 | }; | |
795 | struct sockaddr_in guest_addr = { | |
796 | .sin_family = AF_INET, | |
797 | .sin_addr = { | |
798 | .s_addr = 0, | |
799 | }, | |
800 | }; | |
801 | int err; | |
68ac40d2 MM |
802 | int host_port, guest_port; |
803 | const char *p; | |
804 | char buf[256]; | |
805 | int is_udp; | |
03555199 | 806 | const char *end; |
0e7e4fb0 | 807 | const char *fail_reason = "Unknown reason"; |
68ac40d2 MM |
808 | |
809 | p = redir_str; | |
810 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 811 | fail_reason = "No : separators"; |
68ac40d2 MM |
812 | goto fail_syntax; |
813 | } | |
814 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
815 | is_udp = 0; | |
816 | } else if (!strcmp(buf, "udp")) { | |
817 | is_udp = 1; | |
818 | } else { | |
0e7e4fb0 | 819 | fail_reason = "Bad protocol name"; |
68ac40d2 MM |
820 | goto fail_syntax; |
821 | } | |
822 | ||
d18572dd TH |
823 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
824 | fail_reason = "Missing : separator"; | |
825 | goto fail_syntax; | |
826 | } | |
03555199 | 827 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr.sin_addr)) { |
d18572dd TH |
828 | fail_reason = "Bad host address"; |
829 | goto fail_syntax; | |
68ac40d2 MM |
830 | } |
831 | ||
d18572dd | 832 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { |
0e7e4fb0 | 833 | fail_reason = "Bad host port separator"; |
68ac40d2 MM |
834 | goto fail_syntax; |
835 | } | |
03555199 NN |
836 | err = qemu_strtoi(buf, &end, 0, &host_port); |
837 | if (err || host_port < 0 || host_port > 65535) { | |
0e7e4fb0 | 838 | fail_reason = "Bad host port"; |
68ac40d2 MM |
839 | goto fail_syntax; |
840 | } | |
03555199 | 841 | host_addr.sin_port = htons(host_port); |
68ac40d2 MM |
842 | |
843 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 844 | fail_reason = "Missing guest address"; |
68ac40d2 MM |
845 | goto fail_syntax; |
846 | } | |
03555199 | 847 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr.sin_addr)) { |
0e7e4fb0 | 848 | fail_reason = "Bad guest address"; |
68ac40d2 MM |
849 | goto fail_syntax; |
850 | } | |
851 | ||
03555199 NN |
852 | err = qemu_strtoi(p, &end, 0, &guest_port); |
853 | if (err || guest_port < 1 || guest_port > 65535) { | |
0e7e4fb0 | 854 | fail_reason = "Bad guest port"; |
68ac40d2 MM |
855 | goto fail_syntax; |
856 | } | |
03555199 NN |
857 | guest_addr.sin_port = htons(guest_port); |
858 | ||
859 | #if SLIRP_CHECK_VERSION(4, 5, 0) | |
860 | err = slirp_add_hostxfwd(s->slirp, | |
861 | (struct sockaddr *) &host_addr, sizeof(host_addr), | |
862 | (struct sockaddr *) &guest_addr, sizeof(guest_addr), | |
863 | is_udp ? SLIRP_HOSTFWD_UDP : 0); | |
864 | #else | |
865 | err = slirp_add_hostfwd(s->slirp, is_udp, | |
866 | host_addr.sin_addr, host_port, | |
867 | guest_addr.sin_addr, guest_port); | |
868 | #endif | |
68ac40d2 | 869 | |
03555199 | 870 | if (err < 0) { |
5c843af2 HP |
871 | error_setg(errp, "Could not set up host forwarding rule '%s'", |
872 | redir_str); | |
68ac40d2 MM |
873 | return -1; |
874 | } | |
875 | return 0; | |
876 | ||
877 | fail_syntax: | |
0e7e4fb0 DDAG |
878 | error_setg(errp, "Invalid host forwarding rule '%s' (%s)", redir_str, |
879 | fail_reason); | |
68ac40d2 MM |
880 | return -1; |
881 | } | |
882 | ||
3e5a50d6 | 883 | void hmp_hostfwd_add(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
884 | { |
885 | const char *redir_str; | |
886 | SlirpState *s; | |
887 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
888 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 889 | |
b4983c57 TH |
890 | if (arg2) { |
891 | s = slirp_lookup(mon, arg1); | |
93653066 | 892 | redir_str = arg2; |
68ac40d2 | 893 | } else { |
b4983c57 | 894 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
895 | redir_str = arg1; |
896 | } | |
897 | if (s) { | |
5c843af2 | 898 | Error *err = NULL; |
d18572dd | 899 | if (slirp_hostfwd(s, redir_str, &err) < 0) { |
5c843af2 HP |
900 | error_report_err(err); |
901 | } | |
68ac40d2 MM |
902 | } |
903 | ||
904 | } | |
905 | ||
35acbb30 | 906 | #if defined(CONFIG_SMBD_COMMAND) |
68ac40d2 MM |
907 | |
908 | /* automatic user mode samba server configuration */ | |
909 | static void slirp_smb_cleanup(SlirpState *s) | |
910 | { | |
5a01e99f | 911 | int ret; |
68ac40d2 | 912 | |
f95cc8b6 DDAG |
913 | if (s->smb_dir) { |
914 | gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir); | |
5a01e99f | 915 | ret = system(cmd); |
24ac07de | 916 | if (ret == -1 || !WIFEXITED(ret)) { |
1ecda02b | 917 | error_report("'%s' failed.", cmd); |
5a01e99f | 918 | } else if (WEXITSTATUS(ret)) { |
1ecda02b MA |
919 | error_report("'%s' failed. Error code: %d", |
920 | cmd, WEXITSTATUS(ret)); | |
5a01e99f | 921 | } |
f95cc8b6 DDAG |
922 | g_free(cmd); |
923 | g_free(s->smb_dir); | |
924 | s->smb_dir = NULL; | |
68ac40d2 MM |
925 | } |
926 | } | |
927 | ||
928 | static int slirp_smb(SlirpState* s, const char *exported_dir, | |
5c843af2 | 929 | struct in_addr vserver_addr, Error **errp) |
68ac40d2 | 930 | { |
f95cc8b6 DDAG |
931 | char *smb_conf; |
932 | char *smb_cmdline; | |
1cb1c5d1 | 933 | struct passwd *passwd; |
68ac40d2 MM |
934 | FILE *f; |
935 | ||
1cb1c5d1 JK |
936 | passwd = getpwuid(geteuid()); |
937 | if (!passwd) { | |
5c843af2 | 938 | error_setg(errp, "Failed to retrieve user name"); |
1cb1c5d1 JK |
939 | return -1; |
940 | } | |
941 | ||
927d811b | 942 | if (access(CONFIG_SMBD_COMMAND, F_OK)) { |
5c843af2 HP |
943 | error_setg(errp, "Could not find '%s', please install it", |
944 | CONFIG_SMBD_COMMAND); | |
927d811b DH |
945 | return -1; |
946 | } | |
947 | ||
948 | if (access(exported_dir, R_OK | X_OK)) { | |
5c843af2 HP |
949 | error_setg(errp, "Error accessing shared directory '%s': %s", |
950 | exported_dir, strerror(errno)); | |
927d811b DH |
951 | return -1; |
952 | } | |
953 | ||
f95cc8b6 DDAG |
954 | s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL); |
955 | if (!s->smb_dir) { | |
5c843af2 | 956 | error_setg(errp, "Could not create samba server dir"); |
68ac40d2 MM |
957 | return -1; |
958 | } | |
f95cc8b6 | 959 | smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf"); |
68ac40d2 MM |
960 | |
961 | f = fopen(smb_conf, "w"); | |
962 | if (!f) { | |
963 | slirp_smb_cleanup(s); | |
5c843af2 HP |
964 | error_setg(errp, |
965 | "Could not create samba server configuration file '%s'", | |
966 | smb_conf); | |
f95cc8b6 | 967 | g_free(smb_conf); |
68ac40d2 MM |
968 | return -1; |
969 | } | |
970 | fprintf(f, | |
971 | "[global]\n" | |
972 | "private dir=%s\n" | |
7912d04b PW |
973 | "interfaces=127.0.0.1\n" |
974 | "bind interfaces only=yes\n" | |
68ac40d2 MM |
975 | "pid directory=%s\n" |
976 | "lock directory=%s\n" | |
276eda57 | 977 | "state directory=%s\n" |
7912d04b | 978 | "cache directory=%s\n" |
b87b8a8b | 979 | "ncalrpc dir=%s/ncalrpc\n" |
68ac40d2 MM |
980 | "log file=%s/log.smbd\n" |
981 | "smb passwd file=%s/smbpasswd\n" | |
c2804ee6 MB |
982 | "security = user\n" |
983 | "map to guest = Bad User\n" | |
7912d04b PW |
984 | "load printers = no\n" |
985 | "printing = bsd\n" | |
986 | "disable spoolss = yes\n" | |
987 | "usershare max shares = 0\n" | |
68ac40d2 MM |
988 | "[qemu]\n" |
989 | "path=%s\n" | |
990 | "read only=no\n" | |
1cb1c5d1 JK |
991 | "guest ok=yes\n" |
992 | "force user=%s\n", | |
68ac40d2 MM |
993 | s->smb_dir, |
994 | s->smb_dir, | |
995 | s->smb_dir, | |
996 | s->smb_dir, | |
997 | s->smb_dir, | |
276eda57 | 998 | s->smb_dir, |
b87b8a8b | 999 | s->smb_dir, |
7912d04b | 1000 | s->smb_dir, |
1cb1c5d1 JK |
1001 | exported_dir, |
1002 | passwd->pw_name | |
68ac40d2 MM |
1003 | ); |
1004 | fclose(f); | |
1005 | ||
f95cc8b6 | 1006 | smb_cmdline = g_strdup_printf("%s -l %s -s %s", |
44d8d2b2 | 1007 | CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); |
f95cc8b6 | 1008 | g_free(smb_conf); |
68ac40d2 | 1009 | |
44b4ff24 MAL |
1010 | if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || |
1011 | slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { | |
68ac40d2 | 1012 | slirp_smb_cleanup(s); |
f95cc8b6 | 1013 | g_free(smb_cmdline); |
5c843af2 | 1014 | error_setg(errp, "Conflicting/invalid smbserver address"); |
68ac40d2 MM |
1015 | return -1; |
1016 | } | |
f95cc8b6 | 1017 | g_free(smb_cmdline); |
68ac40d2 MM |
1018 | return 0; |
1019 | } | |
1020 | ||
35acbb30 | 1021 | #endif /* defined(CONFIG_SMBD_COMMAND) */ |
68ac40d2 | 1022 | |
68ac40d2 MM |
1023 | static int guestfwd_can_read(void *opaque) |
1024 | { | |
1025 | struct GuestFwd *fwd = opaque; | |
1026 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); | |
1027 | } | |
1028 | ||
1029 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) | |
1030 | { | |
1031 | struct GuestFwd *fwd = opaque; | |
1032 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); | |
1033 | } | |
1034 | ||
625a526b | 1035 | static ssize_t guestfwd_write(const void *buf, size_t len, void *chr) |
44b4ff24 MAL |
1036 | { |
1037 | return qemu_chr_fe_write_all(chr, buf, len); | |
1038 | } | |
1039 | ||
d18572dd | 1040 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) |
68ac40d2 | 1041 | { |
ffe02f55 | 1042 | /* TODO: IPv6 */ |
68ac40d2 MM |
1043 | struct in_addr server = { .s_addr = 0 }; |
1044 | struct GuestFwd *fwd; | |
1045 | const char *p; | |
1046 | char buf[128]; | |
1047 | char *end; | |
1048 | int port; | |
1049 | ||
1050 | p = config_str; | |
d18572dd TH |
1051 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
1052 | goto fail_syntax; | |
1053 | } | |
1054 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
1055 | goto fail_syntax; | |
1056 | } | |
1057 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1058 | goto fail_syntax; | |
1059 | } | |
1060 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
1061 | goto fail_syntax; | |
1062 | } | |
1063 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
1064 | goto fail_syntax; | |
68ac40d2 MM |
1065 | } |
1066 | port = strtol(buf, &end, 10); | |
1067 | if (*end != '\0' || port < 1 || port > 65535) { | |
1068 | goto fail_syntax; | |
1069 | } | |
1070 | ||
a9899996 | 1071 | snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); |
68ac40d2 | 1072 | |
3624730a | 1073 | if (g_str_has_prefix(p, "cmd:")) { |
44b4ff24 | 1074 | if (slirp_add_exec(s->slirp, &p[4], &server, port) < 0) { |
5c843af2 HP |
1075 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1076 | "forwarding rule '%s'", config_str); | |
b412eb61 AG |
1077 | return -1; |
1078 | } | |
1079 | } else { | |
32a6ebec | 1080 | Error *err = NULL; |
95e30b2a MAL |
1081 | /* |
1082 | * FIXME: sure we want to support implicit | |
1083 | * muxed monitors here? | |
1084 | */ | |
4ad6f6cb | 1085 | Chardev *chr = qemu_chr_new_mux_mon(buf, p, NULL); |
32a6ebec MAL |
1086 | |
1087 | if (!chr) { | |
5c843af2 HP |
1088 | error_setg(errp, "Could not open guest forwarding device '%s'", |
1089 | buf); | |
32a6ebec MAL |
1090 | return -1; |
1091 | } | |
1092 | ||
1093 | fwd = g_new(struct GuestFwd, 1); | |
1094 | qemu_chr_fe_init(&fwd->hd, chr, &err); | |
1095 | if (err) { | |
5c843af2 | 1096 | error_propagate(errp, err); |
8e207c32 | 1097 | object_unparent(OBJECT(chr)); |
b412eb61 AG |
1098 | g_free(fwd); |
1099 | return -1; | |
1100 | } | |
68ac40d2 | 1101 | |
44b4ff24 MAL |
1102 | if (slirp_add_guestfwd(s->slirp, guestfwd_write, &fwd->hd, |
1103 | &server, port) < 0) { | |
5c843af2 HP |
1104 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1105 | "forwarding rule '%s'", config_str); | |
8e207c32 | 1106 | qemu_chr_fe_deinit(&fwd->hd, true); |
b412eb61 AG |
1107 | g_free(fwd); |
1108 | return -1; | |
1109 | } | |
1110 | fwd->server = server; | |
1111 | fwd->port = port; | |
1112 | fwd->slirp = s->slirp; | |
1113 | ||
5345fdb4 | 1114 | qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, |
81517ba3 | 1115 | NULL, NULL, fwd, NULL, true); |
8d45a3b9 | 1116 | s->fwd = g_slist_append(s->fwd, fwd); |
b412eb61 | 1117 | } |
68ac40d2 MM |
1118 | return 0; |
1119 | ||
1120 | fail_syntax: | |
5c843af2 | 1121 | error_setg(errp, "Invalid guest forwarding rule '%s'", config_str); |
68ac40d2 MM |
1122 | return -1; |
1123 | } | |
1124 | ||
1ce6be24 | 1125 | void hmp_info_usernet(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
1126 | { |
1127 | SlirpState *s; | |
1128 | ||
1129 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { | |
90d87a33 | 1130 | int id; |
442da403 | 1131 | bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; |
b7f43bf2 MAL |
1132 | char *info = slirp_connection_info(s->slirp); |
1133 | monitor_printf(mon, "Hub %d (%s):\n%s", | |
442da403 | 1134 | got_hub_id ? id : -1, |
b7f43bf2 MAL |
1135 | s->nc.name, info); |
1136 | g_free(info); | |
68ac40d2 MM |
1137 | } |
1138 | } | |
1139 | ||
094f15c5 LE |
1140 | static void |
1141 | net_init_slirp_configs(const StringList *fwd, int flags) | |
68ac40d2 | 1142 | { |
094f15c5 LE |
1143 | while (fwd) { |
1144 | struct slirp_config_str *config; | |
68ac40d2 | 1145 | |
094f15c5 LE |
1146 | config = g_malloc0(sizeof(*config)); |
1147 | pstrcpy(config->str, sizeof(config->str), fwd->value->str); | |
1148 | config->flags = flags; | |
1149 | config->next = slirp_configs; | |
1150 | slirp_configs = config; | |
68ac40d2 | 1151 | |
094f15c5 | 1152 | fwd = fwd->next; |
68ac40d2 | 1153 | } |
68ac40d2 MM |
1154 | } |
1155 | ||
63d2960b KS |
1156 | static const char **slirp_dnssearch(const StringList *dnsname) |
1157 | { | |
1158 | const StringList *c = dnsname; | |
1159 | size_t i = 0, num_opts = 0; | |
1160 | const char **ret; | |
1161 | ||
1162 | while (c) { | |
1163 | num_opts++; | |
1164 | c = c->next; | |
1165 | } | |
1166 | ||
1167 | if (num_opts == 0) { | |
1168 | return NULL; | |
1169 | } | |
1170 | ||
1171 | ret = g_malloc((num_opts + 1) * sizeof(*ret)); | |
1172 | c = dnsname; | |
1173 | while (c) { | |
1174 | ret[i++] = c->value->str; | |
1175 | c = c->next; | |
1176 | } | |
1177 | ret[i] = NULL; | |
1178 | return ret; | |
1179 | } | |
1180 | ||
cebea510 | 1181 | int net_init_slirp(const Netdev *netdev, const char *name, |
a30ecde6 | 1182 | NetClientState *peer, Error **errp) |
68ac40d2 MM |
1183 | { |
1184 | struct slirp_config_str *config; | |
094f15c5 | 1185 | char *vnet; |
68ac40d2 | 1186 | int ret; |
094f15c5 | 1187 | const NetdevUserOptions *user; |
63d2960b | 1188 | const char **dnssearch; |
0b11c036 | 1189 | bool ipv4 = true, ipv6 = true; |
68ac40d2 | 1190 | |
f394b2e2 EB |
1191 | assert(netdev->type == NET_CLIENT_DRIVER_USER); |
1192 | user = &netdev->u.user; | |
68ac40d2 | 1193 | |
0b11c036 ST |
1194 | if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || |
1195 | (user->has_ipv4 && !user->ipv4)) { | |
1196 | ipv4 = 0; | |
1197 | } | |
1198 | if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || | |
1199 | (user->has_ipv6 && !user->ipv6)) { | |
1200 | ipv6 = 0; | |
1201 | } | |
1202 | ||
7480874a MA |
1203 | vnet = user->net ? g_strdup(user->net) : |
1204 | user->ip ? g_strdup_printf("%s/24", user->ip) : | |
094f15c5 | 1205 | NULL; |
68ac40d2 | 1206 | |
63d2960b KS |
1207 | dnssearch = slirp_dnssearch(user->dnssearch); |
1208 | ||
094f15c5 | 1209 | /* all optional fields are initialized to "all bits zero" */ |
68ac40d2 | 1210 | |
094f15c5 LE |
1211 | net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); |
1212 | net_init_slirp_configs(user->guestfwd, 0); | |
68ac40d2 | 1213 | |
0b11c036 ST |
1214 | ret = net_slirp_init(peer, "user", name, user->q_restrict, |
1215 | ipv4, vnet, user->host, | |
1216 | ipv6, user->ipv6_prefix, user->ipv6_prefixlen, | |
d8eb3864 | 1217 | user->ipv6_host, user->hostname, user->tftp, |
7aac531e | 1218 | user->bootfile, user->dhcpstart, |
d8eb3864 | 1219 | user->dns, user->ipv6_dns, user->smb, |
0fca92b9 FZ |
1220 | user->smbserver, dnssearch, user->domainname, |
1221 | user->tftp_server_name, errp); | |
68ac40d2 MM |
1222 | |
1223 | while (slirp_configs) { | |
1224 | config = slirp_configs; | |
1225 | slirp_configs = config->next; | |
7267c094 | 1226 | g_free(config); |
68ac40d2 MM |
1227 | } |
1228 | ||
7267c094 | 1229 | g_free(vnet); |
63d2960b | 1230 | g_free(dnssearch); |
68ac40d2 MM |
1231 | |
1232 | return ret; | |
1233 | } |