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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 | |
28b150bf | 30 | #ifndef _WIN32 |
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; |
68ac40d2 | 94 | #ifndef _WIN32 |
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 MM |
106 | |
107 | #ifndef _WIN32 | |
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 | ||
122 | if (!s->nc.peer->do_not_pad) { | |
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 | ||
3e0fad3a MAL |
187 | static void *net_slirp_timer_new(SlirpTimerCb cb, |
188 | void *cb_opaque, void *opaque) | |
07abf6d4 MAL |
189 | { |
190 | return timer_new_full(NULL, QEMU_CLOCK_VIRTUAL, | |
191 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
3e0fad3a | 192 | cb, cb_opaque); |
07abf6d4 MAL |
193 | } |
194 | ||
3e0fad3a | 195 | static void net_slirp_timer_free(void *timer, void *opaque) |
07abf6d4 | 196 | { |
07abf6d4 MAL |
197 | timer_free(timer); |
198 | } | |
199 | ||
3e0fad3a MAL |
200 | static void net_slirp_timer_mod(void *timer, int64_t expire_timer, |
201 | void *opaque) | |
07abf6d4 MAL |
202 | { |
203 | timer_mod(timer, expire_timer); | |
204 | } | |
205 | ||
3e0fad3a | 206 | static void net_slirp_register_poll_fd(int fd, void *opaque) |
848c7092 MAL |
207 | { |
208 | qemu_fd_register(fd); | |
209 | } | |
210 | ||
3e0fad3a | 211 | static void net_slirp_unregister_poll_fd(int fd, void *opaque) |
f6e5aa36 MAL |
212 | { |
213 | /* no qemu_fd_unregister */ | |
214 | } | |
215 | ||
3e0fad3a MAL |
216 | static void net_slirp_notify(void *opaque) |
217 | { | |
218 | qemu_notify_event(); | |
219 | } | |
220 | ||
d846b927 | 221 | static const SlirpCb slirp_cb = { |
625a526b | 222 | .send_packet = net_slirp_send_packet, |
2addc8fb | 223 | .guest_error = net_slirp_guest_error, |
e6dbff3f | 224 | .clock_get_ns = net_slirp_clock_get_ns, |
07abf6d4 MAL |
225 | .timer_new = net_slirp_timer_new, |
226 | .timer_free = net_slirp_timer_free, | |
227 | .timer_mod = net_slirp_timer_mod, | |
848c7092 | 228 | .register_poll_fd = net_slirp_register_poll_fd, |
f6e5aa36 | 229 | .unregister_poll_fd = net_slirp_unregister_poll_fd, |
3e0fad3a | 230 | .notify = net_slirp_notify, |
d846b927 MAL |
231 | }; |
232 | ||
deaeb3f7 MAL |
233 | static int slirp_poll_to_gio(int events) |
234 | { | |
235 | int ret = 0; | |
236 | ||
237 | if (events & SLIRP_POLL_IN) { | |
238 | ret |= G_IO_IN; | |
239 | } | |
240 | if (events & SLIRP_POLL_OUT) { | |
241 | ret |= G_IO_OUT; | |
242 | } | |
243 | if (events & SLIRP_POLL_PRI) { | |
244 | ret |= G_IO_PRI; | |
245 | } | |
246 | if (events & SLIRP_POLL_ERR) { | |
247 | ret |= G_IO_ERR; | |
248 | } | |
249 | if (events & SLIRP_POLL_HUP) { | |
250 | ret |= G_IO_HUP; | |
251 | } | |
252 | ||
253 | return ret; | |
254 | } | |
255 | ||
256 | static int net_slirp_add_poll(int fd, int events, void *opaque) | |
257 | { | |
258 | GArray *pollfds = opaque; | |
259 | GPollFD pfd = { | |
260 | .fd = fd, | |
261 | .events = slirp_poll_to_gio(events), | |
262 | }; | |
263 | int idx = pollfds->len; | |
264 | g_array_append_val(pollfds, pfd); | |
265 | return idx; | |
266 | } | |
267 | ||
268 | static int slirp_gio_to_poll(int events) | |
269 | { | |
270 | int ret = 0; | |
271 | ||
272 | if (events & G_IO_IN) { | |
273 | ret |= SLIRP_POLL_IN; | |
274 | } | |
275 | if (events & G_IO_OUT) { | |
276 | ret |= SLIRP_POLL_OUT; | |
277 | } | |
278 | if (events & G_IO_PRI) { | |
279 | ret |= SLIRP_POLL_PRI; | |
280 | } | |
281 | if (events & G_IO_ERR) { | |
282 | ret |= SLIRP_POLL_ERR; | |
283 | } | |
284 | if (events & G_IO_HUP) { | |
285 | ret |= SLIRP_POLL_HUP; | |
286 | } | |
287 | ||
288 | return ret; | |
289 | } | |
290 | ||
291 | static int net_slirp_get_revents(int idx, void *opaque) | |
292 | { | |
293 | GArray *pollfds = opaque; | |
294 | ||
295 | return slirp_gio_to_poll(g_array_index(pollfds, GPollFD, idx).revents); | |
296 | } | |
297 | ||
1ab67b98 MAL |
298 | static void net_slirp_poll_notify(Notifier *notifier, void *data) |
299 | { | |
300 | MainLoopPoll *poll = data; | |
301 | SlirpState *s = container_of(notifier, SlirpState, poll_notifier); | |
302 | ||
303 | switch (poll->state) { | |
304 | case MAIN_LOOP_POLL_FILL: | |
deaeb3f7 MAL |
305 | slirp_pollfds_fill(s->slirp, &poll->timeout, |
306 | net_slirp_add_poll, poll->pollfds); | |
1ab67b98 MAL |
307 | break; |
308 | case MAIN_LOOP_POLL_OK: | |
309 | case MAIN_LOOP_POLL_ERR: | |
deaeb3f7 MAL |
310 | slirp_pollfds_poll(s->slirp, poll->state == MAIN_LOOP_POLL_ERR, |
311 | net_slirp_get_revents, poll->pollfds); | |
1ab67b98 MAL |
312 | break; |
313 | default: | |
314 | g_assert_not_reached(); | |
315 | } | |
316 | } | |
317 | ||
d8903441 MAL |
318 | static ssize_t |
319 | net_slirp_stream_read(void *buf, size_t size, void *opaque) | |
320 | { | |
321 | QEMUFile *f = opaque; | |
322 | ||
323 | return qemu_get_buffer(f, buf, size); | |
324 | } | |
325 | ||
326 | static ssize_t | |
327 | net_slirp_stream_write(const void *buf, size_t size, void *opaque) | |
328 | { | |
329 | QEMUFile *f = opaque; | |
330 | ||
331 | qemu_put_buffer(f, buf, size); | |
332 | if (qemu_file_get_error(f)) { | |
333 | return -1; | |
334 | } | |
335 | ||
336 | return size; | |
337 | } | |
338 | ||
339 | static int net_slirp_state_load(QEMUFile *f, void *opaque, int version_id) | |
340 | { | |
341 | Slirp *slirp = opaque; | |
342 | ||
343 | return slirp_state_load(slirp, version_id, net_slirp_stream_read, f); | |
344 | } | |
345 | ||
346 | static void net_slirp_state_save(QEMUFile *f, void *opaque) | |
347 | { | |
348 | Slirp *slirp = opaque; | |
349 | ||
350 | slirp_state_save(slirp, net_slirp_stream_write, f); | |
351 | } | |
352 | ||
353 | static SaveVMHandlers savevm_slirp_state = { | |
354 | .save_state = net_slirp_state_save, | |
355 | .load_state = net_slirp_state_load, | |
356 | }; | |
357 | ||
4e68f7a0 | 358 | static int net_slirp_init(NetClientState *peer, const char *model, |
68ac40d2 | 359 | const char *name, int restricted, |
0b11c036 ST |
360 | bool ipv4, const char *vnetwork, const char *vhost, |
361 | bool ipv6, const char *vprefix6, int vprefix6_len, | |
7aac531e | 362 | const char *vhost6, |
68ac40d2 MM |
363 | const char *vhostname, const char *tftp_export, |
364 | const char *bootfile, const char *vdhcp_start, | |
7aac531e YB |
365 | const char *vnameserver, const char *vnameserver6, |
366 | const char *smb_export, const char *vsmbserver, | |
f18d1375 | 367 | const char **dnssearch, const char *vdomainname, |
0fca92b9 | 368 | const char *tftp_server_name, |
f18d1375 | 369 | Error **errp) |
68ac40d2 MM |
370 | { |
371 | /* default settings according to historic slirp */ | |
372 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ | |
373 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
374 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ | |
375 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
376 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
7aac531e YB |
377 | struct in6_addr ip6_prefix; |
378 | struct in6_addr ip6_host; | |
379 | struct in6_addr ip6_dns; | |
68ac40d2 MM |
380 | #ifndef _WIN32 |
381 | struct in_addr smbsrv = { .s_addr = 0 }; | |
382 | #endif | |
4e68f7a0 | 383 | NetClientState *nc; |
68ac40d2 MM |
384 | SlirpState *s; |
385 | char buf[20]; | |
386 | uint32_t addr; | |
387 | int shift; | |
388 | char *end; | |
389 | struct slirp_config_str *config; | |
d32ad10a AK |
390 | NetdevUserOptions *stored; |
391 | StringList **stored_hostfwd; | |
392 | StringList **stored_guestfwd; | |
68ac40d2 | 393 | |
0b11c036 | 394 | if (!ipv4 && (vnetwork || vhost || vnameserver)) { |
5c843af2 | 395 | error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); |
0b11c036 ST |
396 | return -1; |
397 | } | |
398 | ||
399 | if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { | |
5c843af2 | 400 | error_setg(errp, "IPv6 disabled but prefix/host6/dns6 provided"); |
0b11c036 ST |
401 | return -1; |
402 | } | |
403 | ||
404 | if (!ipv4 && !ipv6) { | |
405 | /* It doesn't make sense to disable both */ | |
5c843af2 | 406 | error_setg(errp, "IPv4 and IPv6 disabled"); |
0b11c036 ST |
407 | return -1; |
408 | } | |
409 | ||
68ac40d2 MM |
410 | if (vnetwork) { |
411 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
412 | if (!inet_aton(vnetwork, &net)) { | |
5c843af2 | 413 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
414 | return -1; |
415 | } | |
416 | addr = ntohl(net.s_addr); | |
417 | if (!(addr & 0x80000000)) { | |
418 | mask.s_addr = htonl(0xff000000); /* class A */ | |
419 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
420 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
421 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
422 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
423 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
424 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
425 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
426 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
427 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
428 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
429 | } else { | |
430 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ | |
431 | } | |
432 | } else { | |
433 | if (!inet_aton(buf, &net)) { | |
5c843af2 | 434 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
435 | return -1; |
436 | } | |
437 | shift = strtol(vnetwork, &end, 10); | |
438 | if (*end != '\0') { | |
439 | if (!inet_aton(vnetwork, &mask)) { | |
5c843af2 HP |
440 | error_setg(errp, |
441 | "Failed to parse netmask (trailing chars)"); | |
68ac40d2 MM |
442 | return -1; |
443 | } | |
444 | } else if (shift < 4 || shift > 32) { | |
5c843af2 HP |
445 | error_setg(errp, |
446 | "Invalid netmask provided (must be in range 4-32)"); | |
68ac40d2 MM |
447 | return -1; |
448 | } else { | |
449 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
450 | } | |
451 | } | |
452 | net.s_addr &= mask.s_addr; | |
453 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
454 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
455 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
456 | } | |
457 | ||
458 | if (vhost && !inet_aton(vhost, &host)) { | |
5c843af2 | 459 | error_setg(errp, "Failed to parse host"); |
68ac40d2 MM |
460 | return -1; |
461 | } | |
462 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
5c843af2 | 463 | error_setg(errp, "Host doesn't belong to network"); |
68ac40d2 MM |
464 | return -1; |
465 | } | |
466 | ||
68756ba8 | 467 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
5c843af2 | 468 | error_setg(errp, "Failed to parse DNS"); |
68ac40d2 MM |
469 | return -1; |
470 | } | |
120b721f | 471 | if (restricted && (dns.s_addr & mask.s_addr) != net.s_addr) { |
5c843af2 HP |
472 | error_setg(errp, "DNS doesn't belong to network"); |
473 | return -1; | |
474 | } | |
475 | if (dns.s_addr == host.s_addr) { | |
476 | error_setg(errp, "DNS must be different from host"); | |
68ac40d2 MM |
477 | return -1; |
478 | } | |
479 | ||
68756ba8 | 480 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
5c843af2 | 481 | error_setg(errp, "Failed to parse DHCP start address"); |
68ac40d2 MM |
482 | return -1; |
483 | } | |
5c843af2 HP |
484 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr) { |
485 | error_setg(errp, "DHCP doesn't belong to network"); | |
486 | return -1; | |
487 | } | |
488 | if (dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
0c373c01 | 489 | error_setg(errp, "DHCP must be different from host and DNS"); |
68ac40d2 MM |
490 | return -1; |
491 | } | |
492 | ||
493 | #ifndef _WIN32 | |
494 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { | |
5c843af2 | 495 | error_setg(errp, "Failed to parse SMB address"); |
68ac40d2 MM |
496 | return -1; |
497 | } | |
498 | #endif | |
499 | ||
7aac531e YB |
500 | if (!vprefix6) { |
501 | vprefix6 = "fec0::"; | |
502 | } | |
503 | if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { | |
5c843af2 | 504 | error_setg(errp, "Failed to parse IPv6 prefix"); |
7aac531e YB |
505 | return -1; |
506 | } | |
7aac531e YB |
507 | |
508 | if (!vprefix6_len) { | |
509 | vprefix6_len = 64; | |
510 | } | |
511 | if (vprefix6_len < 0 || vprefix6_len > 126) { | |
5c843af2 | 512 | error_setg(errp, |
178a0a5d SG |
513 | "Invalid IPv6 prefix provided " |
514 | "(IPv6 prefix length must be between 0 and 126)"); | |
7aac531e YB |
515 | return -1; |
516 | } | |
517 | ||
518 | if (vhost6) { | |
7aac531e | 519 | if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { |
5c843af2 | 520 | error_setg(errp, "Failed to parse IPv6 host"); |
7aac531e YB |
521 | return -1; |
522 | } | |
523 | if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { | |
5c843af2 | 524 | error_setg(errp, "IPv6 Host doesn't belong to network"); |
7aac531e YB |
525 | return -1; |
526 | } | |
7aac531e YB |
527 | } else { |
528 | ip6_host = ip6_prefix; | |
529 | ip6_host.s6_addr[15] |= 2; | |
530 | } | |
531 | ||
532 | if (vnameserver6) { | |
7aac531e | 533 | if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { |
5c843af2 | 534 | error_setg(errp, "Failed to parse IPv6 DNS"); |
7aac531e YB |
535 | return -1; |
536 | } | |
120b721f | 537 | if (restricted && !in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { |
5c843af2 | 538 | error_setg(errp, "IPv6 DNS doesn't belong to network"); |
7aac531e YB |
539 | return -1; |
540 | } | |
7aac531e YB |
541 | } else { |
542 | ip6_dns = ip6_prefix; | |
543 | ip6_dns.s6_addr[15] |= 3; | |
544 | } | |
545 | ||
f18d1375 BD |
546 | if (vdomainname && !*vdomainname) { |
547 | error_setg(errp, "'domainname' parameter cannot be empty"); | |
548 | return -1; | |
549 | } | |
550 | ||
6e157a03 FZ |
551 | if (vdomainname && strlen(vdomainname) > 255) { |
552 | error_setg(errp, "'domainname' parameter cannot exceed 255 bytes"); | |
553 | return -1; | |
554 | } | |
555 | ||
556 | if (vhostname && strlen(vhostname) > 255) { | |
557 | error_setg(errp, "'vhostname' parameter cannot exceed 255 bytes"); | |
558 | return -1; | |
559 | } | |
7aac531e | 560 | |
0fca92b9 FZ |
561 | if (tftp_server_name && strlen(tftp_server_name) > 255) { |
562 | error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes"); | |
563 | return -1; | |
564 | } | |
565 | ||
ab5f3f84 | 566 | nc = qemu_new_net_client(&net_slirp_info, peer, model, name); |
ce20b5be | 567 | |
d32ad10a AK |
568 | /* Store startup parameters */ |
569 | nc->stored_config = g_new0(NetdevInfo, 1); | |
570 | nc->stored_config->type = NET_BACKEND_USER; | |
571 | stored = &nc->stored_config->u.user; | |
572 | ||
573 | if (vhostname) { | |
574 | stored->has_hostname = true; | |
575 | stored->hostname = g_strdup(vhostname); | |
576 | } | |
577 | ||
578 | stored->has_q_restrict = true; | |
579 | stored->q_restrict = restricted; | |
580 | ||
581 | stored->has_ipv4 = true; | |
582 | stored->ipv4 = ipv4; | |
583 | ||
584 | stored->has_ipv6 = true; | |
585 | stored->ipv6 = ipv6; | |
586 | ||
587 | if (ipv4) { | |
588 | uint8_t *net_bytes = (uint8_t *)&net; | |
589 | uint8_t *mask_bytes = (uint8_t *)&mask; | |
590 | ||
591 | stored->has_net = true; | |
592 | stored->net = g_strdup_printf("%d.%d.%d.%d/%d.%d.%d.%d", | |
593 | net_bytes[0], net_bytes[1], | |
594 | net_bytes[2], net_bytes[3], | |
595 | mask_bytes[0], mask_bytes[1], | |
596 | mask_bytes[2], mask_bytes[3]); | |
597 | ||
598 | stored->has_host = true; | |
599 | stored->host = g_strdup(inet_ntoa(host)); | |
600 | } | |
601 | ||
602 | if (tftp_export) { | |
603 | stored->has_tftp = true; | |
604 | stored->tftp = g_strdup(tftp_export); | |
605 | } | |
606 | ||
607 | if (bootfile) { | |
608 | stored->has_bootfile = true; | |
609 | stored->bootfile = g_strdup(bootfile); | |
610 | } | |
611 | ||
612 | if (vdhcp_start) { | |
613 | stored->has_dhcpstart = true; | |
614 | stored->dhcpstart = g_strdup(vdhcp_start); | |
615 | } | |
616 | ||
617 | if (ipv4) { | |
618 | stored->has_dns = true; | |
619 | stored->dns = g_strdup(inet_ntoa(dns)); | |
620 | } | |
621 | ||
622 | if (dnssearch) { | |
623 | stored->has_dnssearch = true; | |
624 | StringList **stored_list = &stored->dnssearch; | |
625 | ||
626 | for (int i = 0; dnssearch[i]; i++) { | |
627 | String *element = g_new0(String, 1); | |
628 | ||
629 | element->str = g_strdup(dnssearch[i]); | |
630 | QAPI_LIST_APPEND(stored_list, element); | |
631 | } | |
632 | } | |
633 | ||
634 | if (vdomainname) { | |
635 | stored->has_domainname = true; | |
636 | stored->domainname = g_strdup(vdomainname); | |
637 | } | |
638 | ||
639 | if (ipv6) { | |
640 | char addrstr[INET6_ADDRSTRLEN]; | |
641 | const char *res; | |
642 | ||
643 | stored->has_ipv6_prefix = true; | |
644 | stored->ipv6_prefix = g_strdup(vprefix6); | |
645 | ||
646 | stored->has_ipv6_prefixlen = true; | |
647 | stored->ipv6_prefixlen = vprefix6_len; | |
648 | ||
649 | res = inet_ntop(AF_INET6, &ip6_host, | |
650 | addrstr, sizeof(addrstr)); | |
651 | ||
652 | stored->has_ipv6_host = true; | |
653 | stored->ipv6_host = g_strdup(res); | |
654 | ||
655 | res = inet_ntop(AF_INET6, &ip6_dns, | |
656 | addrstr, sizeof(addrstr)); | |
657 | ||
658 | stored->has_ipv6_dns = true; | |
659 | stored->ipv6_dns = g_strdup(res); | |
660 | } | |
661 | ||
662 | if (smb_export) { | |
663 | stored->has_smb = true; | |
664 | stored->smb = g_strdup(smb_export); | |
665 | } | |
666 | ||
667 | if (vsmbserver) { | |
668 | stored->has_smbserver = true; | |
669 | stored->smbserver = g_strdup(vsmbserver); | |
670 | } | |
671 | ||
672 | if (tftp_server_name) { | |
673 | stored->has_tftp_server_name = true; | |
674 | stored->tftp_server_name = g_strdup(tftp_server_name); | |
675 | } | |
676 | ||
ce20b5be MM |
677 | s = DO_UPCAST(SlirpState, nc, nc); |
678 | ||
0b11c036 ST |
679 | s->slirp = slirp_init(restricted, ipv4, net, mask, host, |
680 | ipv6, ip6_prefix, vprefix6_len, ip6_host, | |
0fca92b9 FZ |
681 | vhostname, tftp_server_name, |
682 | tftp_export, bootfile, dhcp, | |
62c1d2c4 | 683 | dns, ip6_dns, dnssearch, vdomainname, |
d846b927 | 684 | &slirp_cb, s); |
68ac40d2 MM |
685 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
686 | ||
d8903441 MAL |
687 | /* |
688 | * Make sure the current bitstream version of slirp is 4, to avoid | |
689 | * QEMU migration incompatibilities, if upstream slirp bumped the | |
690 | * version. | |
691 | * | |
692 | * FIXME: use bitfields of features? teach libslirp to save with | |
693 | * specific version? | |
694 | */ | |
695 | g_assert(slirp_state_version() == 4); | |
ce62df53 | 696 | register_savevm_live("slirp", 0, slirp_state_version(), |
d8903441 MAL |
697 | &savevm_slirp_state, s->slirp); |
698 | ||
1ab67b98 MAL |
699 | s->poll_notifier.notify = net_slirp_poll_notify; |
700 | main_loop_poll_add_notifier(&s->poll_notifier); | |
701 | ||
d32ad10a AK |
702 | stored_hostfwd = &stored->hostfwd; |
703 | stored_guestfwd = &stored->guestfwd; | |
704 | ||
68ac40d2 | 705 | for (config = slirp_configs; config; config = config->next) { |
d32ad10a AK |
706 | String *element = g_new0(String, 1); |
707 | ||
708 | element->str = g_strdup(config->str); | |
68ac40d2 | 709 | if (config->flags & SLIRP_CFG_HOSTFWD) { |
d18572dd | 710 | if (slirp_hostfwd(s, config->str, errp) < 0) { |
ce20b5be | 711 | goto error; |
5c843af2 | 712 | } |
d32ad10a AK |
713 | stored->has_hostfwd = true; |
714 | QAPI_LIST_APPEND(stored_hostfwd, element); | |
68ac40d2 | 715 | } else { |
d18572dd | 716 | if (slirp_guestfwd(s, config->str, errp) < 0) { |
ce20b5be | 717 | goto error; |
5c843af2 | 718 | } |
d32ad10a AK |
719 | stored->has_guestfwd = true; |
720 | QAPI_LIST_APPEND(stored_guestfwd, element); | |
68ac40d2 MM |
721 | } |
722 | } | |
723 | #ifndef _WIN32 | |
68ac40d2 | 724 | if (smb_export) { |
5c843af2 | 725 | if (slirp_smb(s, smb_export, smbsrv, errp) < 0) { |
ce20b5be | 726 | goto error; |
5c843af2 | 727 | } |
68ac40d2 MM |
728 | } |
729 | #endif | |
730 | ||
f6c2e66a PB |
731 | s->exit_notifier.notify = slirp_smb_exit; |
732 | qemu_add_exit_notifier(&s->exit_notifier); | |
68ac40d2 | 733 | return 0; |
ce20b5be MM |
734 | |
735 | error: | |
b20c6b9e | 736 | qemu_del_net_client(nc); |
ce20b5be | 737 | return -1; |
68ac40d2 MM |
738 | } |
739 | ||
b4983c57 | 740 | static SlirpState *slirp_lookup(Monitor *mon, const char *id) |
68ac40d2 | 741 | { |
b4983c57 TH |
742 | if (id) { |
743 | NetClientState *nc = qemu_find_netdev(id); | |
744 | if (!nc) { | |
745 | monitor_printf(mon, "unrecognized netdev id '%s'\n", id); | |
746 | return NULL; | |
68ac40d2 | 747 | } |
ce20b5be | 748 | if (strcmp(nc->model, "user")) { |
68ac40d2 MM |
749 | monitor_printf(mon, "invalid device specified\n"); |
750 | return NULL; | |
751 | } | |
ce20b5be | 752 | return DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
753 | } else { |
754 | if (QTAILQ_EMPTY(&slirp_stacks)) { | |
755 | monitor_printf(mon, "user mode network stack not in use\n"); | |
756 | return NULL; | |
757 | } | |
758 | return QTAILQ_FIRST(&slirp_stacks); | |
759 | } | |
760 | } | |
761 | ||
3e5a50d6 | 762 | void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
763 | { |
764 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
765 | int host_port; | |
e30e5eb6 | 766 | char buf[256]; |
68ac40d2 MM |
767 | const char *src_str, *p; |
768 | SlirpState *s; | |
769 | int is_udp = 0; | |
770 | int err; | |
771 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
772 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 773 | |
b4983c57 TH |
774 | if (arg2) { |
775 | s = slirp_lookup(mon, arg1); | |
93653066 | 776 | src_str = arg2; |
68ac40d2 | 777 | } else { |
b4983c57 | 778 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
779 | src_str = arg1; |
780 | } | |
781 | if (!s) { | |
782 | return; | |
783 | } | |
784 | ||
68ac40d2 | 785 | p = src_str; |
e30e5eb6 MA |
786 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
787 | goto fail_syntax; | |
788 | } | |
68ac40d2 MM |
789 | |
790 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
791 | is_udp = 0; | |
792 | } else if (!strcmp(buf, "udp")) { | |
793 | is_udp = 1; | |
794 | } else { | |
795 | goto fail_syntax; | |
796 | } | |
797 | ||
798 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
799 | goto fail_syntax; | |
800 | } | |
801 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
802 | goto fail_syntax; | |
803 | } | |
804 | ||
1fb3f7f2 NA |
805 | if (qemu_strtoi(p, NULL, 10, &host_port)) { |
806 | goto fail_syntax; | |
807 | } | |
68ac40d2 | 808 | |
70381662 | 809 | err = slirp_remove_hostfwd(s->slirp, is_udp, host_addr, host_port); |
68ac40d2 MM |
810 | |
811 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, | |
b15ba6c9 | 812 | err ? "not found" : "removed"); |
68ac40d2 MM |
813 | return; |
814 | ||
815 | fail_syntax: | |
816 | monitor_printf(mon, "invalid format\n"); | |
817 | } | |
818 | ||
d18572dd | 819 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp) |
68ac40d2 MM |
820 | { |
821 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
822 | struct in_addr guest_addr = { .s_addr = 0 }; | |
823 | int host_port, guest_port; | |
824 | const char *p; | |
825 | char buf[256]; | |
826 | int is_udp; | |
827 | char *end; | |
0e7e4fb0 | 828 | const char *fail_reason = "Unknown reason"; |
68ac40d2 MM |
829 | |
830 | p = redir_str; | |
831 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 832 | fail_reason = "No : separators"; |
68ac40d2 MM |
833 | goto fail_syntax; |
834 | } | |
835 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
836 | is_udp = 0; | |
837 | } else if (!strcmp(buf, "udp")) { | |
838 | is_udp = 1; | |
839 | } else { | |
0e7e4fb0 | 840 | fail_reason = "Bad protocol name"; |
68ac40d2 MM |
841 | goto fail_syntax; |
842 | } | |
843 | ||
d18572dd TH |
844 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
845 | fail_reason = "Missing : separator"; | |
846 | goto fail_syntax; | |
847 | } | |
848 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
849 | fail_reason = "Bad host address"; | |
850 | goto fail_syntax; | |
68ac40d2 MM |
851 | } |
852 | ||
d18572dd | 853 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { |
0e7e4fb0 | 854 | fail_reason = "Bad host port separator"; |
68ac40d2 MM |
855 | goto fail_syntax; |
856 | } | |
857 | host_port = strtol(buf, &end, 0); | |
0bed71ed | 858 | if (*end != '\0' || host_port < 0 || host_port > 65535) { |
0e7e4fb0 | 859 | fail_reason = "Bad host port"; |
68ac40d2 MM |
860 | goto fail_syntax; |
861 | } | |
862 | ||
863 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 864 | fail_reason = "Missing guest address"; |
68ac40d2 MM |
865 | goto fail_syntax; |
866 | } | |
867 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { | |
0e7e4fb0 | 868 | fail_reason = "Bad guest address"; |
68ac40d2 MM |
869 | goto fail_syntax; |
870 | } | |
871 | ||
872 | guest_port = strtol(p, &end, 0); | |
873 | if (*end != '\0' || guest_port < 1 || guest_port > 65535) { | |
0e7e4fb0 | 874 | fail_reason = "Bad guest port"; |
68ac40d2 MM |
875 | goto fail_syntax; |
876 | } | |
877 | ||
878 | if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr, | |
879 | guest_port) < 0) { | |
5c843af2 HP |
880 | error_setg(errp, "Could not set up host forwarding rule '%s'", |
881 | redir_str); | |
68ac40d2 MM |
882 | return -1; |
883 | } | |
884 | return 0; | |
885 | ||
886 | fail_syntax: | |
0e7e4fb0 DDAG |
887 | error_setg(errp, "Invalid host forwarding rule '%s' (%s)", redir_str, |
888 | fail_reason); | |
68ac40d2 MM |
889 | return -1; |
890 | } | |
891 | ||
3e5a50d6 | 892 | void hmp_hostfwd_add(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
893 | { |
894 | const char *redir_str; | |
895 | SlirpState *s; | |
896 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
897 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 898 | |
b4983c57 TH |
899 | if (arg2) { |
900 | s = slirp_lookup(mon, arg1); | |
93653066 | 901 | redir_str = arg2; |
68ac40d2 | 902 | } else { |
b4983c57 | 903 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
904 | redir_str = arg1; |
905 | } | |
906 | if (s) { | |
5c843af2 | 907 | Error *err = NULL; |
d18572dd | 908 | if (slirp_hostfwd(s, redir_str, &err) < 0) { |
5c843af2 HP |
909 | error_report_err(err); |
910 | } | |
68ac40d2 MM |
911 | } |
912 | ||
913 | } | |
914 | ||
68ac40d2 MM |
915 | #ifndef _WIN32 |
916 | ||
917 | /* automatic user mode samba server configuration */ | |
918 | static void slirp_smb_cleanup(SlirpState *s) | |
919 | { | |
5a01e99f | 920 | int ret; |
68ac40d2 | 921 | |
f95cc8b6 DDAG |
922 | if (s->smb_dir) { |
923 | gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir); | |
5a01e99f | 924 | ret = system(cmd); |
24ac07de | 925 | if (ret == -1 || !WIFEXITED(ret)) { |
1ecda02b | 926 | error_report("'%s' failed.", cmd); |
5a01e99f | 927 | } else if (WEXITSTATUS(ret)) { |
1ecda02b MA |
928 | error_report("'%s' failed. Error code: %d", |
929 | cmd, WEXITSTATUS(ret)); | |
5a01e99f | 930 | } |
f95cc8b6 DDAG |
931 | g_free(cmd); |
932 | g_free(s->smb_dir); | |
933 | s->smb_dir = NULL; | |
68ac40d2 MM |
934 | } |
935 | } | |
936 | ||
937 | static int slirp_smb(SlirpState* s, const char *exported_dir, | |
5c843af2 | 938 | struct in_addr vserver_addr, Error **errp) |
68ac40d2 | 939 | { |
f95cc8b6 DDAG |
940 | char *smb_conf; |
941 | char *smb_cmdline; | |
1cb1c5d1 | 942 | struct passwd *passwd; |
68ac40d2 MM |
943 | FILE *f; |
944 | ||
1cb1c5d1 JK |
945 | passwd = getpwuid(geteuid()); |
946 | if (!passwd) { | |
5c843af2 | 947 | error_setg(errp, "Failed to retrieve user name"); |
1cb1c5d1 JK |
948 | return -1; |
949 | } | |
950 | ||
927d811b | 951 | if (access(CONFIG_SMBD_COMMAND, F_OK)) { |
5c843af2 HP |
952 | error_setg(errp, "Could not find '%s', please install it", |
953 | CONFIG_SMBD_COMMAND); | |
927d811b DH |
954 | return -1; |
955 | } | |
956 | ||
957 | if (access(exported_dir, R_OK | X_OK)) { | |
5c843af2 HP |
958 | error_setg(errp, "Error accessing shared directory '%s': %s", |
959 | exported_dir, strerror(errno)); | |
927d811b DH |
960 | return -1; |
961 | } | |
962 | ||
f95cc8b6 DDAG |
963 | s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL); |
964 | if (!s->smb_dir) { | |
5c843af2 | 965 | error_setg(errp, "Could not create samba server dir"); |
68ac40d2 MM |
966 | return -1; |
967 | } | |
f95cc8b6 | 968 | smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf"); |
68ac40d2 MM |
969 | |
970 | f = fopen(smb_conf, "w"); | |
971 | if (!f) { | |
972 | slirp_smb_cleanup(s); | |
5c843af2 HP |
973 | error_setg(errp, |
974 | "Could not create samba server configuration file '%s'", | |
975 | smb_conf); | |
f95cc8b6 | 976 | g_free(smb_conf); |
68ac40d2 MM |
977 | return -1; |
978 | } | |
979 | fprintf(f, | |
980 | "[global]\n" | |
981 | "private dir=%s\n" | |
7912d04b PW |
982 | "interfaces=127.0.0.1\n" |
983 | "bind interfaces only=yes\n" | |
68ac40d2 MM |
984 | "pid directory=%s\n" |
985 | "lock directory=%s\n" | |
276eda57 | 986 | "state directory=%s\n" |
7912d04b | 987 | "cache directory=%s\n" |
b87b8a8b | 988 | "ncalrpc dir=%s/ncalrpc\n" |
68ac40d2 MM |
989 | "log file=%s/log.smbd\n" |
990 | "smb passwd file=%s/smbpasswd\n" | |
c2804ee6 MB |
991 | "security = user\n" |
992 | "map to guest = Bad User\n" | |
7912d04b PW |
993 | "load printers = no\n" |
994 | "printing = bsd\n" | |
995 | "disable spoolss = yes\n" | |
996 | "usershare max shares = 0\n" | |
68ac40d2 MM |
997 | "[qemu]\n" |
998 | "path=%s\n" | |
999 | "read only=no\n" | |
1cb1c5d1 JK |
1000 | "guest ok=yes\n" |
1001 | "force user=%s\n", | |
68ac40d2 MM |
1002 | s->smb_dir, |
1003 | s->smb_dir, | |
1004 | s->smb_dir, | |
1005 | s->smb_dir, | |
1006 | s->smb_dir, | |
276eda57 | 1007 | s->smb_dir, |
b87b8a8b | 1008 | s->smb_dir, |
7912d04b | 1009 | s->smb_dir, |
1cb1c5d1 JK |
1010 | exported_dir, |
1011 | passwd->pw_name | |
68ac40d2 MM |
1012 | ); |
1013 | fclose(f); | |
1014 | ||
f95cc8b6 | 1015 | smb_cmdline = g_strdup_printf("%s -l %s -s %s", |
44d8d2b2 | 1016 | CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); |
f95cc8b6 | 1017 | g_free(smb_conf); |
68ac40d2 | 1018 | |
44b4ff24 MAL |
1019 | if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || |
1020 | slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { | |
68ac40d2 | 1021 | slirp_smb_cleanup(s); |
f95cc8b6 | 1022 | g_free(smb_cmdline); |
5c843af2 | 1023 | error_setg(errp, "Conflicting/invalid smbserver address"); |
68ac40d2 MM |
1024 | return -1; |
1025 | } | |
f95cc8b6 | 1026 | g_free(smb_cmdline); |
68ac40d2 MM |
1027 | return 0; |
1028 | } | |
1029 | ||
68ac40d2 MM |
1030 | #endif /* !defined(_WIN32) */ |
1031 | ||
68ac40d2 MM |
1032 | static int guestfwd_can_read(void *opaque) |
1033 | { | |
1034 | struct GuestFwd *fwd = opaque; | |
1035 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); | |
1036 | } | |
1037 | ||
1038 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) | |
1039 | { | |
1040 | struct GuestFwd *fwd = opaque; | |
1041 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); | |
1042 | } | |
1043 | ||
625a526b | 1044 | static ssize_t guestfwd_write(const void *buf, size_t len, void *chr) |
44b4ff24 MAL |
1045 | { |
1046 | return qemu_chr_fe_write_all(chr, buf, len); | |
1047 | } | |
1048 | ||
d18572dd | 1049 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) |
68ac40d2 | 1050 | { |
ffe02f55 | 1051 | /* TODO: IPv6 */ |
68ac40d2 MM |
1052 | struct in_addr server = { .s_addr = 0 }; |
1053 | struct GuestFwd *fwd; | |
1054 | const char *p; | |
1055 | char buf[128]; | |
1056 | char *end; | |
1057 | int port; | |
1058 | ||
1059 | p = config_str; | |
d18572dd TH |
1060 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
1061 | goto fail_syntax; | |
1062 | } | |
1063 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
1064 | goto fail_syntax; | |
1065 | } | |
1066 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1067 | goto fail_syntax; | |
1068 | } | |
1069 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
1070 | goto fail_syntax; | |
1071 | } | |
1072 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
1073 | goto fail_syntax; | |
68ac40d2 MM |
1074 | } |
1075 | port = strtol(buf, &end, 10); | |
1076 | if (*end != '\0' || port < 1 || port > 65535) { | |
1077 | goto fail_syntax; | |
1078 | } | |
1079 | ||
a9899996 | 1080 | snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); |
68ac40d2 | 1081 | |
3624730a | 1082 | if (g_str_has_prefix(p, "cmd:")) { |
44b4ff24 | 1083 | if (slirp_add_exec(s->slirp, &p[4], &server, port) < 0) { |
5c843af2 HP |
1084 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1085 | "forwarding rule '%s'", config_str); | |
b412eb61 AG |
1086 | return -1; |
1087 | } | |
1088 | } else { | |
32a6ebec | 1089 | Error *err = NULL; |
95e30b2a MAL |
1090 | /* |
1091 | * FIXME: sure we want to support implicit | |
1092 | * muxed monitors here? | |
1093 | */ | |
4ad6f6cb | 1094 | Chardev *chr = qemu_chr_new_mux_mon(buf, p, NULL); |
32a6ebec MAL |
1095 | |
1096 | if (!chr) { | |
5c843af2 HP |
1097 | error_setg(errp, "Could not open guest forwarding device '%s'", |
1098 | buf); | |
32a6ebec MAL |
1099 | return -1; |
1100 | } | |
1101 | ||
1102 | fwd = g_new(struct GuestFwd, 1); | |
1103 | qemu_chr_fe_init(&fwd->hd, chr, &err); | |
1104 | if (err) { | |
5c843af2 | 1105 | error_propagate(errp, err); |
8e207c32 | 1106 | object_unparent(OBJECT(chr)); |
b412eb61 AG |
1107 | g_free(fwd); |
1108 | return -1; | |
1109 | } | |
68ac40d2 | 1110 | |
44b4ff24 MAL |
1111 | if (slirp_add_guestfwd(s->slirp, guestfwd_write, &fwd->hd, |
1112 | &server, port) < 0) { | |
5c843af2 HP |
1113 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1114 | "forwarding rule '%s'", config_str); | |
8e207c32 | 1115 | qemu_chr_fe_deinit(&fwd->hd, true); |
b412eb61 AG |
1116 | g_free(fwd); |
1117 | return -1; | |
1118 | } | |
1119 | fwd->server = server; | |
1120 | fwd->port = port; | |
1121 | fwd->slirp = s->slirp; | |
1122 | ||
5345fdb4 | 1123 | qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, |
81517ba3 | 1124 | NULL, NULL, fwd, NULL, true); |
8d45a3b9 | 1125 | s->fwd = g_slist_append(s->fwd, fwd); |
b412eb61 | 1126 | } |
68ac40d2 MM |
1127 | return 0; |
1128 | ||
1129 | fail_syntax: | |
5c843af2 | 1130 | error_setg(errp, "Invalid guest forwarding rule '%s'", config_str); |
68ac40d2 MM |
1131 | return -1; |
1132 | } | |
1133 | ||
1ce6be24 | 1134 | void hmp_info_usernet(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
1135 | { |
1136 | SlirpState *s; | |
1137 | ||
1138 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { | |
90d87a33 | 1139 | int id; |
442da403 | 1140 | bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; |
b7f43bf2 MAL |
1141 | char *info = slirp_connection_info(s->slirp); |
1142 | monitor_printf(mon, "Hub %d (%s):\n%s", | |
442da403 | 1143 | got_hub_id ? id : -1, |
b7f43bf2 MAL |
1144 | s->nc.name, info); |
1145 | g_free(info); | |
68ac40d2 MM |
1146 | } |
1147 | } | |
1148 | ||
094f15c5 LE |
1149 | static void |
1150 | net_init_slirp_configs(const StringList *fwd, int flags) | |
68ac40d2 | 1151 | { |
094f15c5 LE |
1152 | while (fwd) { |
1153 | struct slirp_config_str *config; | |
68ac40d2 | 1154 | |
094f15c5 LE |
1155 | config = g_malloc0(sizeof(*config)); |
1156 | pstrcpy(config->str, sizeof(config->str), fwd->value->str); | |
1157 | config->flags = flags; | |
1158 | config->next = slirp_configs; | |
1159 | slirp_configs = config; | |
68ac40d2 | 1160 | |
094f15c5 | 1161 | fwd = fwd->next; |
68ac40d2 | 1162 | } |
68ac40d2 MM |
1163 | } |
1164 | ||
63d2960b KS |
1165 | static const char **slirp_dnssearch(const StringList *dnsname) |
1166 | { | |
1167 | const StringList *c = dnsname; | |
1168 | size_t i = 0, num_opts = 0; | |
1169 | const char **ret; | |
1170 | ||
1171 | while (c) { | |
1172 | num_opts++; | |
1173 | c = c->next; | |
1174 | } | |
1175 | ||
1176 | if (num_opts == 0) { | |
1177 | return NULL; | |
1178 | } | |
1179 | ||
1180 | ret = g_malloc((num_opts + 1) * sizeof(*ret)); | |
1181 | c = dnsname; | |
1182 | while (c) { | |
1183 | ret[i++] = c->value->str; | |
1184 | c = c->next; | |
1185 | } | |
1186 | ret[i] = NULL; | |
1187 | return ret; | |
1188 | } | |
1189 | ||
cebea510 | 1190 | int net_init_slirp(const Netdev *netdev, const char *name, |
a30ecde6 | 1191 | NetClientState *peer, Error **errp) |
68ac40d2 MM |
1192 | { |
1193 | struct slirp_config_str *config; | |
094f15c5 | 1194 | char *vnet; |
68ac40d2 | 1195 | int ret; |
094f15c5 | 1196 | const NetdevUserOptions *user; |
63d2960b | 1197 | const char **dnssearch; |
0b11c036 | 1198 | bool ipv4 = true, ipv6 = true; |
68ac40d2 | 1199 | |
f394b2e2 EB |
1200 | assert(netdev->type == NET_CLIENT_DRIVER_USER); |
1201 | user = &netdev->u.user; | |
68ac40d2 | 1202 | |
0b11c036 ST |
1203 | if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || |
1204 | (user->has_ipv4 && !user->ipv4)) { | |
1205 | ipv4 = 0; | |
1206 | } | |
1207 | if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || | |
1208 | (user->has_ipv6 && !user->ipv6)) { | |
1209 | ipv6 = 0; | |
1210 | } | |
1211 | ||
094f15c5 LE |
1212 | vnet = user->has_net ? g_strdup(user->net) : |
1213 | user->has_ip ? g_strdup_printf("%s/24", user->ip) : | |
1214 | NULL; | |
68ac40d2 | 1215 | |
63d2960b KS |
1216 | dnssearch = slirp_dnssearch(user->dnssearch); |
1217 | ||
094f15c5 | 1218 | /* all optional fields are initialized to "all bits zero" */ |
68ac40d2 | 1219 | |
094f15c5 LE |
1220 | net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); |
1221 | net_init_slirp_configs(user->guestfwd, 0); | |
68ac40d2 | 1222 | |
0b11c036 ST |
1223 | ret = net_slirp_init(peer, "user", name, user->q_restrict, |
1224 | ipv4, vnet, user->host, | |
1225 | ipv6, user->ipv6_prefix, user->ipv6_prefixlen, | |
d8eb3864 | 1226 | user->ipv6_host, user->hostname, user->tftp, |
7aac531e | 1227 | user->bootfile, user->dhcpstart, |
d8eb3864 | 1228 | user->dns, user->ipv6_dns, user->smb, |
0fca92b9 FZ |
1229 | user->smbserver, dnssearch, user->domainname, |
1230 | user->tftp_server_name, errp); | |
68ac40d2 MM |
1231 | |
1232 | while (slirp_configs) { | |
1233 | config = slirp_configs; | |
1234 | slirp_configs = config->next; | |
7267c094 | 1235 | g_free(config); |
68ac40d2 MM |
1236 | } |
1237 | ||
7267c094 | 1238 | g_free(vnet); |
63d2960b | 1239 | g_free(dnssearch); |
68ac40d2 MM |
1240 | |
1241 | return ret; | |
1242 | } |