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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 | |
1422e32d | 34 | #include "net/net.h" |
a245fc18 PB |
35 | #include "clients.h" |
36 | #include "hub.h" | |
83c9089e | 37 | #include "monitor/monitor.h" |
d49b6836 | 38 | #include "qemu/error-report.h" |
1de7afc9 | 39 | #include "qemu/sockets.h" |
675b9b53 | 40 | #include <libslirp.h> |
4d43a603 | 41 | #include "chardev/char-fe.h" |
f6c2e66a | 42 | #include "sysemu/sysemu.h" |
f348b6d1 | 43 | #include "qemu/cutils.h" |
32a6ebec | 44 | #include "qapi/error.h" |
452fcdbc | 45 | #include "qapi/qmp/qdict.h" |
e05ae1d9 | 46 | #include "util.h" |
d8903441 MAL |
47 | #include "migration/register.h" |
48 | #include "migration/qemu-file-types.h" | |
68ac40d2 MM |
49 | |
50 | static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) | |
51 | { | |
52 | const char *p, *p1; | |
53 | int len; | |
54 | p = *pp; | |
55 | p1 = strchr(p, sep); | |
56 | if (!p1) | |
57 | return -1; | |
58 | len = p1 - p; | |
59 | p1++; | |
60 | if (buf_size > 0) { | |
61 | if (len > buf_size - 1) | |
62 | len = buf_size - 1; | |
63 | memcpy(buf, p, len); | |
64 | buf[len] = '\0'; | |
65 | } | |
66 | *pp = p1; | |
67 | return 0; | |
68 | } | |
69 | ||
70 | /* slirp network adapter */ | |
71 | ||
72 | #define SLIRP_CFG_HOSTFWD 1 | |
68ac40d2 MM |
73 | |
74 | struct slirp_config_str { | |
75 | struct slirp_config_str *next; | |
76 | int flags; | |
77 | char str[1024]; | |
68ac40d2 MM |
78 | }; |
79 | ||
8d45a3b9 MAL |
80 | struct GuestFwd { |
81 | CharBackend hd; | |
82 | struct in_addr server; | |
83 | int port; | |
84 | Slirp *slirp; | |
85 | }; | |
86 | ||
68ac40d2 | 87 | typedef struct SlirpState { |
4e68f7a0 | 88 | NetClientState nc; |
68ac40d2 | 89 | QTAILQ_ENTRY(SlirpState) entry; |
68ac40d2 | 90 | Slirp *slirp; |
1ab67b98 | 91 | Notifier poll_notifier; |
f6c2e66a | 92 | Notifier exit_notifier; |
68ac40d2 | 93 | #ifndef _WIN32 |
f95cc8b6 | 94 | gchar *smb_dir; |
68ac40d2 | 95 | #endif |
8d45a3b9 | 96 | GSList *fwd; |
68ac40d2 MM |
97 | } SlirpState; |
98 | ||
99 | static struct slirp_config_str *slirp_configs; | |
b58deb34 | 100 | static QTAILQ_HEAD(, SlirpState) slirp_stacks = |
68ac40d2 MM |
101 | QTAILQ_HEAD_INITIALIZER(slirp_stacks); |
102 | ||
d18572dd TH |
103 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp); |
104 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp); | |
68ac40d2 MM |
105 | |
106 | #ifndef _WIN32 | |
68ac40d2 | 107 | static int slirp_smb(SlirpState *s, const char *exported_dir, |
5c843af2 | 108 | struct in_addr vserver_addr, Error **errp); |
68ac40d2 MM |
109 | static void slirp_smb_cleanup(SlirpState *s); |
110 | #else | |
111 | static inline void slirp_smb_cleanup(SlirpState *s) { } | |
112 | #endif | |
113 | ||
625a526b MAL |
114 | static ssize_t net_slirp_send_packet(const void *pkt, size_t pkt_len, |
115 | void *opaque) | |
68ac40d2 MM |
116 | { |
117 | SlirpState *s = opaque; | |
118 | ||
625a526b | 119 | return qemu_send_packet(&s->nc, pkt, pkt_len); |
68ac40d2 MM |
120 | } |
121 | ||
4e68f7a0 | 122 | static ssize_t net_slirp_receive(NetClientState *nc, const uint8_t *buf, size_t size) |
68ac40d2 | 123 | { |
ce20b5be | 124 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
125 | |
126 | slirp_input(s->slirp, buf, size); | |
127 | ||
128 | return size; | |
129 | } | |
130 | ||
f6c2e66a PB |
131 | static void slirp_smb_exit(Notifier *n, void *data) |
132 | { | |
133 | SlirpState *s = container_of(n, SlirpState, exit_notifier); | |
134 | slirp_smb_cleanup(s); | |
135 | } | |
136 | ||
8d45a3b9 MAL |
137 | static void slirp_free_fwd(gpointer data) |
138 | { | |
139 | struct GuestFwd *fwd = data; | |
140 | ||
141 | qemu_chr_fe_deinit(&fwd->hd, true); | |
142 | g_free(data); | |
143 | } | |
144 | ||
4e68f7a0 | 145 | static void net_slirp_cleanup(NetClientState *nc) |
68ac40d2 | 146 | { |
ce20b5be | 147 | SlirpState *s = DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 | 148 | |
8d45a3b9 | 149 | g_slist_free_full(s->fwd, slirp_free_fwd); |
1ab67b98 | 150 | main_loop_poll_remove_notifier(&s->poll_notifier); |
d8903441 | 151 | unregister_savevm(NULL, "slirp", s->slirp); |
68ac40d2 | 152 | slirp_cleanup(s->slirp); |
67f3280c MAL |
153 | if (s->exit_notifier.notify) { |
154 | qemu_remove_exit_notifier(&s->exit_notifier); | |
155 | } | |
68ac40d2 MM |
156 | slirp_smb_cleanup(s); |
157 | QTAILQ_REMOVE(&slirp_stacks, s, entry); | |
68ac40d2 MM |
158 | } |
159 | ||
ce20b5be | 160 | static NetClientInfo net_slirp_info = { |
f394b2e2 | 161 | .type = NET_CLIENT_DRIVER_USER, |
ce20b5be MM |
162 | .size = sizeof(SlirpState), |
163 | .receive = net_slirp_receive, | |
164 | .cleanup = net_slirp_cleanup, | |
165 | }; | |
166 | ||
3e0fad3a | 167 | static void net_slirp_guest_error(const char *msg, void *opaque) |
2addc8fb MAL |
168 | { |
169 | qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); | |
170 | } | |
171 | ||
3e0fad3a | 172 | static int64_t net_slirp_clock_get_ns(void *opaque) |
e6dbff3f MAL |
173 | { |
174 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); | |
175 | } | |
176 | ||
3e0fad3a MAL |
177 | static void *net_slirp_timer_new(SlirpTimerCb cb, |
178 | void *cb_opaque, void *opaque) | |
07abf6d4 MAL |
179 | { |
180 | return timer_new_full(NULL, QEMU_CLOCK_VIRTUAL, | |
181 | SCALE_MS, QEMU_TIMER_ATTR_EXTERNAL, | |
3e0fad3a | 182 | cb, cb_opaque); |
07abf6d4 MAL |
183 | } |
184 | ||
3e0fad3a | 185 | static void net_slirp_timer_free(void *timer, void *opaque) |
07abf6d4 | 186 | { |
07abf6d4 MAL |
187 | timer_free(timer); |
188 | } | |
189 | ||
3e0fad3a MAL |
190 | static void net_slirp_timer_mod(void *timer, int64_t expire_timer, |
191 | void *opaque) | |
07abf6d4 MAL |
192 | { |
193 | timer_mod(timer, expire_timer); | |
194 | } | |
195 | ||
3e0fad3a | 196 | static void net_slirp_register_poll_fd(int fd, void *opaque) |
848c7092 MAL |
197 | { |
198 | qemu_fd_register(fd); | |
199 | } | |
200 | ||
3e0fad3a | 201 | static void net_slirp_unregister_poll_fd(int fd, void *opaque) |
f6e5aa36 MAL |
202 | { |
203 | /* no qemu_fd_unregister */ | |
204 | } | |
205 | ||
3e0fad3a MAL |
206 | static void net_slirp_notify(void *opaque) |
207 | { | |
208 | qemu_notify_event(); | |
209 | } | |
210 | ||
d846b927 | 211 | static const SlirpCb slirp_cb = { |
625a526b | 212 | .send_packet = net_slirp_send_packet, |
2addc8fb | 213 | .guest_error = net_slirp_guest_error, |
e6dbff3f | 214 | .clock_get_ns = net_slirp_clock_get_ns, |
07abf6d4 MAL |
215 | .timer_new = net_slirp_timer_new, |
216 | .timer_free = net_slirp_timer_free, | |
217 | .timer_mod = net_slirp_timer_mod, | |
848c7092 | 218 | .register_poll_fd = net_slirp_register_poll_fd, |
f6e5aa36 | 219 | .unregister_poll_fd = net_slirp_unregister_poll_fd, |
3e0fad3a | 220 | .notify = net_slirp_notify, |
d846b927 MAL |
221 | }; |
222 | ||
deaeb3f7 MAL |
223 | static int slirp_poll_to_gio(int events) |
224 | { | |
225 | int ret = 0; | |
226 | ||
227 | if (events & SLIRP_POLL_IN) { | |
228 | ret |= G_IO_IN; | |
229 | } | |
230 | if (events & SLIRP_POLL_OUT) { | |
231 | ret |= G_IO_OUT; | |
232 | } | |
233 | if (events & SLIRP_POLL_PRI) { | |
234 | ret |= G_IO_PRI; | |
235 | } | |
236 | if (events & SLIRP_POLL_ERR) { | |
237 | ret |= G_IO_ERR; | |
238 | } | |
239 | if (events & SLIRP_POLL_HUP) { | |
240 | ret |= G_IO_HUP; | |
241 | } | |
242 | ||
243 | return ret; | |
244 | } | |
245 | ||
246 | static int net_slirp_add_poll(int fd, int events, void *opaque) | |
247 | { | |
248 | GArray *pollfds = opaque; | |
249 | GPollFD pfd = { | |
250 | .fd = fd, | |
251 | .events = slirp_poll_to_gio(events), | |
252 | }; | |
253 | int idx = pollfds->len; | |
254 | g_array_append_val(pollfds, pfd); | |
255 | return idx; | |
256 | } | |
257 | ||
258 | static int slirp_gio_to_poll(int events) | |
259 | { | |
260 | int ret = 0; | |
261 | ||
262 | if (events & G_IO_IN) { | |
263 | ret |= SLIRP_POLL_IN; | |
264 | } | |
265 | if (events & G_IO_OUT) { | |
266 | ret |= SLIRP_POLL_OUT; | |
267 | } | |
268 | if (events & G_IO_PRI) { | |
269 | ret |= SLIRP_POLL_PRI; | |
270 | } | |
271 | if (events & G_IO_ERR) { | |
272 | ret |= SLIRP_POLL_ERR; | |
273 | } | |
274 | if (events & G_IO_HUP) { | |
275 | ret |= SLIRP_POLL_HUP; | |
276 | } | |
277 | ||
278 | return ret; | |
279 | } | |
280 | ||
281 | static int net_slirp_get_revents(int idx, void *opaque) | |
282 | { | |
283 | GArray *pollfds = opaque; | |
284 | ||
285 | return slirp_gio_to_poll(g_array_index(pollfds, GPollFD, idx).revents); | |
286 | } | |
287 | ||
1ab67b98 MAL |
288 | static void net_slirp_poll_notify(Notifier *notifier, void *data) |
289 | { | |
290 | MainLoopPoll *poll = data; | |
291 | SlirpState *s = container_of(notifier, SlirpState, poll_notifier); | |
292 | ||
293 | switch (poll->state) { | |
294 | case MAIN_LOOP_POLL_FILL: | |
deaeb3f7 MAL |
295 | slirp_pollfds_fill(s->slirp, &poll->timeout, |
296 | net_slirp_add_poll, poll->pollfds); | |
1ab67b98 MAL |
297 | break; |
298 | case MAIN_LOOP_POLL_OK: | |
299 | case MAIN_LOOP_POLL_ERR: | |
deaeb3f7 MAL |
300 | slirp_pollfds_poll(s->slirp, poll->state == MAIN_LOOP_POLL_ERR, |
301 | net_slirp_get_revents, poll->pollfds); | |
1ab67b98 MAL |
302 | break; |
303 | default: | |
304 | g_assert_not_reached(); | |
305 | } | |
306 | } | |
307 | ||
d8903441 MAL |
308 | static ssize_t |
309 | net_slirp_stream_read(void *buf, size_t size, void *opaque) | |
310 | { | |
311 | QEMUFile *f = opaque; | |
312 | ||
313 | return qemu_get_buffer(f, buf, size); | |
314 | } | |
315 | ||
316 | static ssize_t | |
317 | net_slirp_stream_write(const void *buf, size_t size, void *opaque) | |
318 | { | |
319 | QEMUFile *f = opaque; | |
320 | ||
321 | qemu_put_buffer(f, buf, size); | |
322 | if (qemu_file_get_error(f)) { | |
323 | return -1; | |
324 | } | |
325 | ||
326 | return size; | |
327 | } | |
328 | ||
329 | static int net_slirp_state_load(QEMUFile *f, void *opaque, int version_id) | |
330 | { | |
331 | Slirp *slirp = opaque; | |
332 | ||
333 | return slirp_state_load(slirp, version_id, net_slirp_stream_read, f); | |
334 | } | |
335 | ||
336 | static void net_slirp_state_save(QEMUFile *f, void *opaque) | |
337 | { | |
338 | Slirp *slirp = opaque; | |
339 | ||
340 | slirp_state_save(slirp, net_slirp_stream_write, f); | |
341 | } | |
342 | ||
343 | static SaveVMHandlers savevm_slirp_state = { | |
344 | .save_state = net_slirp_state_save, | |
345 | .load_state = net_slirp_state_load, | |
346 | }; | |
347 | ||
4e68f7a0 | 348 | static int net_slirp_init(NetClientState *peer, const char *model, |
68ac40d2 | 349 | const char *name, int restricted, |
0b11c036 ST |
350 | bool ipv4, const char *vnetwork, const char *vhost, |
351 | bool ipv6, const char *vprefix6, int vprefix6_len, | |
7aac531e | 352 | const char *vhost6, |
68ac40d2 MM |
353 | const char *vhostname, const char *tftp_export, |
354 | const char *bootfile, const char *vdhcp_start, | |
7aac531e YB |
355 | const char *vnameserver, const char *vnameserver6, |
356 | const char *smb_export, const char *vsmbserver, | |
f18d1375 | 357 | const char **dnssearch, const char *vdomainname, |
0fca92b9 | 358 | const char *tftp_server_name, |
f18d1375 | 359 | Error **errp) |
68ac40d2 MM |
360 | { |
361 | /* default settings according to historic slirp */ | |
362 | struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */ | |
363 | struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */ | |
364 | struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */ | |
365 | struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */ | |
366 | struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */ | |
7aac531e YB |
367 | struct in6_addr ip6_prefix; |
368 | struct in6_addr ip6_host; | |
369 | struct in6_addr ip6_dns; | |
68ac40d2 MM |
370 | #ifndef _WIN32 |
371 | struct in_addr smbsrv = { .s_addr = 0 }; | |
372 | #endif | |
4e68f7a0 | 373 | NetClientState *nc; |
68ac40d2 MM |
374 | SlirpState *s; |
375 | char buf[20]; | |
376 | uint32_t addr; | |
377 | int shift; | |
378 | char *end; | |
379 | struct slirp_config_str *config; | |
d32ad10a AK |
380 | NetdevUserOptions *stored; |
381 | StringList **stored_hostfwd; | |
382 | StringList **stored_guestfwd; | |
68ac40d2 | 383 | |
0b11c036 | 384 | if (!ipv4 && (vnetwork || vhost || vnameserver)) { |
5c843af2 | 385 | error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); |
0b11c036 ST |
386 | return -1; |
387 | } | |
388 | ||
389 | if (!ipv6 && (vprefix6 || vhost6 || vnameserver6)) { | |
5c843af2 | 390 | error_setg(errp, "IPv6 disabled but prefix/host6/dns6 provided"); |
0b11c036 ST |
391 | return -1; |
392 | } | |
393 | ||
394 | if (!ipv4 && !ipv6) { | |
395 | /* It doesn't make sense to disable both */ | |
5c843af2 | 396 | error_setg(errp, "IPv4 and IPv6 disabled"); |
0b11c036 ST |
397 | return -1; |
398 | } | |
399 | ||
68ac40d2 MM |
400 | if (vnetwork) { |
401 | if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) { | |
402 | if (!inet_aton(vnetwork, &net)) { | |
5c843af2 | 403 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
404 | return -1; |
405 | } | |
406 | addr = ntohl(net.s_addr); | |
407 | if (!(addr & 0x80000000)) { | |
408 | mask.s_addr = htonl(0xff000000); /* class A */ | |
409 | } else if ((addr & 0xfff00000) == 0xac100000) { | |
410 | mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */ | |
411 | } else if ((addr & 0xc0000000) == 0x80000000) { | |
412 | mask.s_addr = htonl(0xffff0000); /* class B */ | |
413 | } else if ((addr & 0xffff0000) == 0xc0a80000) { | |
414 | mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */ | |
415 | } else if ((addr & 0xffff0000) == 0xc6120000) { | |
416 | mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */ | |
417 | } else if ((addr & 0xe0000000) == 0xe0000000) { | |
418 | mask.s_addr = htonl(0xffffff00); /* class C */ | |
419 | } else { | |
420 | mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */ | |
421 | } | |
422 | } else { | |
423 | if (!inet_aton(buf, &net)) { | |
5c843af2 | 424 | error_setg(errp, "Failed to parse netmask"); |
68ac40d2 MM |
425 | return -1; |
426 | } | |
427 | shift = strtol(vnetwork, &end, 10); | |
428 | if (*end != '\0') { | |
429 | if (!inet_aton(vnetwork, &mask)) { | |
5c843af2 HP |
430 | error_setg(errp, |
431 | "Failed to parse netmask (trailing chars)"); | |
68ac40d2 MM |
432 | return -1; |
433 | } | |
434 | } else if (shift < 4 || shift > 32) { | |
5c843af2 HP |
435 | error_setg(errp, |
436 | "Invalid netmask provided (must be in range 4-32)"); | |
68ac40d2 MM |
437 | return -1; |
438 | } else { | |
439 | mask.s_addr = htonl(0xffffffff << (32 - shift)); | |
440 | } | |
441 | } | |
442 | net.s_addr &= mask.s_addr; | |
443 | host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr); | |
444 | dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr); | |
445 | dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr); | |
446 | } | |
447 | ||
448 | if (vhost && !inet_aton(vhost, &host)) { | |
5c843af2 | 449 | error_setg(errp, "Failed to parse host"); |
68ac40d2 MM |
450 | return -1; |
451 | } | |
452 | if ((host.s_addr & mask.s_addr) != net.s_addr) { | |
5c843af2 | 453 | error_setg(errp, "Host doesn't belong to network"); |
68ac40d2 MM |
454 | return -1; |
455 | } | |
456 | ||
68756ba8 | 457 | if (vnameserver && !inet_aton(vnameserver, &dns)) { |
5c843af2 | 458 | error_setg(errp, "Failed to parse DNS"); |
68ac40d2 MM |
459 | return -1; |
460 | } | |
120b721f | 461 | if (restricted && (dns.s_addr & mask.s_addr) != net.s_addr) { |
5c843af2 HP |
462 | error_setg(errp, "DNS doesn't belong to network"); |
463 | return -1; | |
464 | } | |
465 | if (dns.s_addr == host.s_addr) { | |
466 | error_setg(errp, "DNS must be different from host"); | |
68ac40d2 MM |
467 | return -1; |
468 | } | |
469 | ||
68756ba8 | 470 | if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) { |
5c843af2 | 471 | error_setg(errp, "Failed to parse DHCP start address"); |
68ac40d2 MM |
472 | return -1; |
473 | } | |
5c843af2 HP |
474 | if ((dhcp.s_addr & mask.s_addr) != net.s_addr) { |
475 | error_setg(errp, "DHCP doesn't belong to network"); | |
476 | return -1; | |
477 | } | |
478 | if (dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) { | |
0c373c01 | 479 | error_setg(errp, "DHCP must be different from host and DNS"); |
68ac40d2 MM |
480 | return -1; |
481 | } | |
482 | ||
483 | #ifndef _WIN32 | |
484 | if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) { | |
5c843af2 | 485 | error_setg(errp, "Failed to parse SMB address"); |
68ac40d2 MM |
486 | return -1; |
487 | } | |
488 | #endif | |
489 | ||
7aac531e YB |
490 | if (!vprefix6) { |
491 | vprefix6 = "fec0::"; | |
492 | } | |
493 | if (!inet_pton(AF_INET6, vprefix6, &ip6_prefix)) { | |
5c843af2 | 494 | error_setg(errp, "Failed to parse IPv6 prefix"); |
7aac531e YB |
495 | return -1; |
496 | } | |
7aac531e YB |
497 | |
498 | if (!vprefix6_len) { | |
499 | vprefix6_len = 64; | |
500 | } | |
501 | if (vprefix6_len < 0 || vprefix6_len > 126) { | |
5c843af2 | 502 | error_setg(errp, |
178a0a5d SG |
503 | "Invalid IPv6 prefix provided " |
504 | "(IPv6 prefix length must be between 0 and 126)"); | |
7aac531e YB |
505 | return -1; |
506 | } | |
507 | ||
508 | if (vhost6) { | |
7aac531e | 509 | if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { |
5c843af2 | 510 | error_setg(errp, "Failed to parse IPv6 host"); |
7aac531e YB |
511 | return -1; |
512 | } | |
513 | if (!in6_equal_net(&ip6_prefix, &ip6_host, vprefix6_len)) { | |
5c843af2 | 514 | error_setg(errp, "IPv6 Host doesn't belong to network"); |
7aac531e YB |
515 | return -1; |
516 | } | |
7aac531e YB |
517 | } else { |
518 | ip6_host = ip6_prefix; | |
519 | ip6_host.s6_addr[15] |= 2; | |
520 | } | |
521 | ||
522 | if (vnameserver6) { | |
7aac531e | 523 | if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { |
5c843af2 | 524 | error_setg(errp, "Failed to parse IPv6 DNS"); |
7aac531e YB |
525 | return -1; |
526 | } | |
120b721f | 527 | if (restricted && !in6_equal_net(&ip6_prefix, &ip6_dns, vprefix6_len)) { |
5c843af2 | 528 | error_setg(errp, "IPv6 DNS doesn't belong to network"); |
7aac531e YB |
529 | return -1; |
530 | } | |
7aac531e YB |
531 | } else { |
532 | ip6_dns = ip6_prefix; | |
533 | ip6_dns.s6_addr[15] |= 3; | |
534 | } | |
535 | ||
f18d1375 BD |
536 | if (vdomainname && !*vdomainname) { |
537 | error_setg(errp, "'domainname' parameter cannot be empty"); | |
538 | return -1; | |
539 | } | |
540 | ||
6e157a03 FZ |
541 | if (vdomainname && strlen(vdomainname) > 255) { |
542 | error_setg(errp, "'domainname' parameter cannot exceed 255 bytes"); | |
543 | return -1; | |
544 | } | |
545 | ||
546 | if (vhostname && strlen(vhostname) > 255) { | |
547 | error_setg(errp, "'vhostname' parameter cannot exceed 255 bytes"); | |
548 | return -1; | |
549 | } | |
7aac531e | 550 | |
0fca92b9 FZ |
551 | if (tftp_server_name && strlen(tftp_server_name) > 255) { |
552 | error_setg(errp, "'tftp-server-name' parameter cannot exceed 255 bytes"); | |
553 | return -1; | |
554 | } | |
555 | ||
ab5f3f84 | 556 | nc = qemu_new_net_client(&net_slirp_info, peer, model, name); |
ce20b5be | 557 | |
d32ad10a AK |
558 | /* Store startup parameters */ |
559 | nc->stored_config = g_new0(NetdevInfo, 1); | |
560 | nc->stored_config->type = NET_BACKEND_USER; | |
561 | stored = &nc->stored_config->u.user; | |
562 | ||
563 | if (vhostname) { | |
564 | stored->has_hostname = true; | |
565 | stored->hostname = g_strdup(vhostname); | |
566 | } | |
567 | ||
568 | stored->has_q_restrict = true; | |
569 | stored->q_restrict = restricted; | |
570 | ||
571 | stored->has_ipv4 = true; | |
572 | stored->ipv4 = ipv4; | |
573 | ||
574 | stored->has_ipv6 = true; | |
575 | stored->ipv6 = ipv6; | |
576 | ||
577 | if (ipv4) { | |
578 | uint8_t *net_bytes = (uint8_t *)&net; | |
579 | uint8_t *mask_bytes = (uint8_t *)&mask; | |
580 | ||
581 | stored->has_net = true; | |
582 | stored->net = g_strdup_printf("%d.%d.%d.%d/%d.%d.%d.%d", | |
583 | net_bytes[0], net_bytes[1], | |
584 | net_bytes[2], net_bytes[3], | |
585 | mask_bytes[0], mask_bytes[1], | |
586 | mask_bytes[2], mask_bytes[3]); | |
587 | ||
588 | stored->has_host = true; | |
589 | stored->host = g_strdup(inet_ntoa(host)); | |
590 | } | |
591 | ||
592 | if (tftp_export) { | |
593 | stored->has_tftp = true; | |
594 | stored->tftp = g_strdup(tftp_export); | |
595 | } | |
596 | ||
597 | if (bootfile) { | |
598 | stored->has_bootfile = true; | |
599 | stored->bootfile = g_strdup(bootfile); | |
600 | } | |
601 | ||
602 | if (vdhcp_start) { | |
603 | stored->has_dhcpstart = true; | |
604 | stored->dhcpstart = g_strdup(vdhcp_start); | |
605 | } | |
606 | ||
607 | if (ipv4) { | |
608 | stored->has_dns = true; | |
609 | stored->dns = g_strdup(inet_ntoa(dns)); | |
610 | } | |
611 | ||
612 | if (dnssearch) { | |
613 | stored->has_dnssearch = true; | |
614 | StringList **stored_list = &stored->dnssearch; | |
615 | ||
616 | for (int i = 0; dnssearch[i]; i++) { | |
617 | String *element = g_new0(String, 1); | |
618 | ||
619 | element->str = g_strdup(dnssearch[i]); | |
620 | QAPI_LIST_APPEND(stored_list, element); | |
621 | } | |
622 | } | |
623 | ||
624 | if (vdomainname) { | |
625 | stored->has_domainname = true; | |
626 | stored->domainname = g_strdup(vdomainname); | |
627 | } | |
628 | ||
629 | if (ipv6) { | |
630 | char addrstr[INET6_ADDRSTRLEN]; | |
631 | const char *res; | |
632 | ||
633 | stored->has_ipv6_prefix = true; | |
634 | stored->ipv6_prefix = g_strdup(vprefix6); | |
635 | ||
636 | stored->has_ipv6_prefixlen = true; | |
637 | stored->ipv6_prefixlen = vprefix6_len; | |
638 | ||
639 | res = inet_ntop(AF_INET6, &ip6_host, | |
640 | addrstr, sizeof(addrstr)); | |
641 | ||
642 | stored->has_ipv6_host = true; | |
643 | stored->ipv6_host = g_strdup(res); | |
644 | ||
645 | res = inet_ntop(AF_INET6, &ip6_dns, | |
646 | addrstr, sizeof(addrstr)); | |
647 | ||
648 | stored->has_ipv6_dns = true; | |
649 | stored->ipv6_dns = g_strdup(res); | |
650 | } | |
651 | ||
652 | if (smb_export) { | |
653 | stored->has_smb = true; | |
654 | stored->smb = g_strdup(smb_export); | |
655 | } | |
656 | ||
657 | if (vsmbserver) { | |
658 | stored->has_smbserver = true; | |
659 | stored->smbserver = g_strdup(vsmbserver); | |
660 | } | |
661 | ||
662 | if (tftp_server_name) { | |
663 | stored->has_tftp_server_name = true; | |
664 | stored->tftp_server_name = g_strdup(tftp_server_name); | |
665 | } | |
666 | ||
ce20b5be | 667 | snprintf(nc->info_str, sizeof(nc->info_str), |
c54ed5bc JK |
668 | "net=%s,restrict=%s", inet_ntoa(net), |
669 | restricted ? "on" : "off"); | |
ce20b5be MM |
670 | |
671 | s = DO_UPCAST(SlirpState, nc, nc); | |
672 | ||
0b11c036 ST |
673 | s->slirp = slirp_init(restricted, ipv4, net, mask, host, |
674 | ipv6, ip6_prefix, vprefix6_len, ip6_host, | |
0fca92b9 FZ |
675 | vhostname, tftp_server_name, |
676 | tftp_export, bootfile, dhcp, | |
62c1d2c4 | 677 | dns, ip6_dns, dnssearch, vdomainname, |
d846b927 | 678 | &slirp_cb, s); |
68ac40d2 MM |
679 | QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); |
680 | ||
d8903441 MAL |
681 | /* |
682 | * Make sure the current bitstream version of slirp is 4, to avoid | |
683 | * QEMU migration incompatibilities, if upstream slirp bumped the | |
684 | * version. | |
685 | * | |
686 | * FIXME: use bitfields of features? teach libslirp to save with | |
687 | * specific version? | |
688 | */ | |
689 | g_assert(slirp_state_version() == 4); | |
ce62df53 | 690 | register_savevm_live("slirp", 0, slirp_state_version(), |
d8903441 MAL |
691 | &savevm_slirp_state, s->slirp); |
692 | ||
1ab67b98 MAL |
693 | s->poll_notifier.notify = net_slirp_poll_notify; |
694 | main_loop_poll_add_notifier(&s->poll_notifier); | |
695 | ||
d32ad10a AK |
696 | stored_hostfwd = &stored->hostfwd; |
697 | stored_guestfwd = &stored->guestfwd; | |
698 | ||
68ac40d2 | 699 | for (config = slirp_configs; config; config = config->next) { |
d32ad10a AK |
700 | String *element = g_new0(String, 1); |
701 | ||
702 | element->str = g_strdup(config->str); | |
68ac40d2 | 703 | if (config->flags & SLIRP_CFG_HOSTFWD) { |
d18572dd | 704 | if (slirp_hostfwd(s, config->str, errp) < 0) { |
ce20b5be | 705 | goto error; |
5c843af2 | 706 | } |
d32ad10a AK |
707 | stored->has_hostfwd = true; |
708 | QAPI_LIST_APPEND(stored_hostfwd, element); | |
68ac40d2 | 709 | } else { |
d18572dd | 710 | if (slirp_guestfwd(s, config->str, errp) < 0) { |
ce20b5be | 711 | goto error; |
5c843af2 | 712 | } |
d32ad10a AK |
713 | stored->has_guestfwd = true; |
714 | QAPI_LIST_APPEND(stored_guestfwd, element); | |
68ac40d2 MM |
715 | } |
716 | } | |
717 | #ifndef _WIN32 | |
68ac40d2 | 718 | if (smb_export) { |
5c843af2 | 719 | if (slirp_smb(s, smb_export, smbsrv, errp) < 0) { |
ce20b5be | 720 | goto error; |
5c843af2 | 721 | } |
68ac40d2 MM |
722 | } |
723 | #endif | |
724 | ||
f6c2e66a PB |
725 | s->exit_notifier.notify = slirp_smb_exit; |
726 | qemu_add_exit_notifier(&s->exit_notifier); | |
68ac40d2 | 727 | return 0; |
ce20b5be MM |
728 | |
729 | error: | |
b20c6b9e | 730 | qemu_del_net_client(nc); |
ce20b5be | 731 | return -1; |
68ac40d2 MM |
732 | } |
733 | ||
b4983c57 | 734 | static SlirpState *slirp_lookup(Monitor *mon, const char *id) |
68ac40d2 | 735 | { |
b4983c57 TH |
736 | if (id) { |
737 | NetClientState *nc = qemu_find_netdev(id); | |
738 | if (!nc) { | |
739 | monitor_printf(mon, "unrecognized netdev id '%s'\n", id); | |
740 | return NULL; | |
68ac40d2 | 741 | } |
ce20b5be | 742 | if (strcmp(nc->model, "user")) { |
68ac40d2 MM |
743 | monitor_printf(mon, "invalid device specified\n"); |
744 | return NULL; | |
745 | } | |
ce20b5be | 746 | return DO_UPCAST(SlirpState, nc, nc); |
68ac40d2 MM |
747 | } else { |
748 | if (QTAILQ_EMPTY(&slirp_stacks)) { | |
749 | monitor_printf(mon, "user mode network stack not in use\n"); | |
750 | return NULL; | |
751 | } | |
752 | return QTAILQ_FIRST(&slirp_stacks); | |
753 | } | |
754 | } | |
755 | ||
3e5a50d6 | 756 | void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
757 | { |
758 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
759 | int host_port; | |
e30e5eb6 | 760 | char buf[256]; |
68ac40d2 MM |
761 | const char *src_str, *p; |
762 | SlirpState *s; | |
763 | int is_udp = 0; | |
764 | int err; | |
765 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
766 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 767 | |
b4983c57 TH |
768 | if (arg2) { |
769 | s = slirp_lookup(mon, arg1); | |
93653066 | 770 | src_str = arg2; |
68ac40d2 | 771 | } else { |
b4983c57 | 772 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
773 | src_str = arg1; |
774 | } | |
775 | if (!s) { | |
776 | return; | |
777 | } | |
778 | ||
68ac40d2 | 779 | p = src_str; |
e30e5eb6 MA |
780 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
781 | goto fail_syntax; | |
782 | } | |
68ac40d2 MM |
783 | |
784 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
785 | is_udp = 0; | |
786 | } else if (!strcmp(buf, "udp")) { | |
787 | is_udp = 1; | |
788 | } else { | |
789 | goto fail_syntax; | |
790 | } | |
791 | ||
792 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
793 | goto fail_syntax; | |
794 | } | |
795 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
796 | goto fail_syntax; | |
797 | } | |
798 | ||
1fb3f7f2 NA |
799 | if (qemu_strtoi(p, NULL, 10, &host_port)) { |
800 | goto fail_syntax; | |
801 | } | |
68ac40d2 | 802 | |
70381662 | 803 | err = slirp_remove_hostfwd(s->slirp, is_udp, host_addr, host_port); |
68ac40d2 MM |
804 | |
805 | monitor_printf(mon, "host forwarding rule for %s %s\n", src_str, | |
b15ba6c9 | 806 | err ? "not found" : "removed"); |
68ac40d2 MM |
807 | return; |
808 | ||
809 | fail_syntax: | |
810 | monitor_printf(mon, "invalid format\n"); | |
811 | } | |
812 | ||
d18572dd | 813 | static int slirp_hostfwd(SlirpState *s, const char *redir_str, Error **errp) |
68ac40d2 MM |
814 | { |
815 | struct in_addr host_addr = { .s_addr = INADDR_ANY }; | |
816 | struct in_addr guest_addr = { .s_addr = 0 }; | |
817 | int host_port, guest_port; | |
818 | const char *p; | |
819 | char buf[256]; | |
820 | int is_udp; | |
821 | char *end; | |
0e7e4fb0 | 822 | const char *fail_reason = "Unknown reason"; |
68ac40d2 MM |
823 | |
824 | p = redir_str; | |
825 | if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 826 | fail_reason = "No : separators"; |
68ac40d2 MM |
827 | goto fail_syntax; |
828 | } | |
829 | if (!strcmp(buf, "tcp") || buf[0] == '\0') { | |
830 | is_udp = 0; | |
831 | } else if (!strcmp(buf, "udp")) { | |
832 | is_udp = 1; | |
833 | } else { | |
0e7e4fb0 | 834 | fail_reason = "Bad protocol name"; |
68ac40d2 MM |
835 | goto fail_syntax; |
836 | } | |
837 | ||
d18572dd TH |
838 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
839 | fail_reason = "Missing : separator"; | |
840 | goto fail_syntax; | |
841 | } | |
842 | if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) { | |
843 | fail_reason = "Bad host address"; | |
844 | goto fail_syntax; | |
68ac40d2 MM |
845 | } |
846 | ||
d18572dd | 847 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { |
0e7e4fb0 | 848 | fail_reason = "Bad host port separator"; |
68ac40d2 MM |
849 | goto fail_syntax; |
850 | } | |
851 | host_port = strtol(buf, &end, 0); | |
0bed71ed | 852 | if (*end != '\0' || host_port < 0 || host_port > 65535) { |
0e7e4fb0 | 853 | fail_reason = "Bad host port"; |
68ac40d2 MM |
854 | goto fail_syntax; |
855 | } | |
856 | ||
857 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
0e7e4fb0 | 858 | fail_reason = "Missing guest address"; |
68ac40d2 MM |
859 | goto fail_syntax; |
860 | } | |
861 | if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) { | |
0e7e4fb0 | 862 | fail_reason = "Bad guest address"; |
68ac40d2 MM |
863 | goto fail_syntax; |
864 | } | |
865 | ||
866 | guest_port = strtol(p, &end, 0); | |
867 | if (*end != '\0' || guest_port < 1 || guest_port > 65535) { | |
0e7e4fb0 | 868 | fail_reason = "Bad guest port"; |
68ac40d2 MM |
869 | goto fail_syntax; |
870 | } | |
871 | ||
872 | if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr, | |
873 | guest_port) < 0) { | |
5c843af2 HP |
874 | error_setg(errp, "Could not set up host forwarding rule '%s'", |
875 | redir_str); | |
68ac40d2 MM |
876 | return -1; |
877 | } | |
878 | return 0; | |
879 | ||
880 | fail_syntax: | |
0e7e4fb0 DDAG |
881 | error_setg(errp, "Invalid host forwarding rule '%s' (%s)", redir_str, |
882 | fail_reason); | |
68ac40d2 MM |
883 | return -1; |
884 | } | |
885 | ||
3e5a50d6 | 886 | void hmp_hostfwd_add(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
887 | { |
888 | const char *redir_str; | |
889 | SlirpState *s; | |
890 | const char *arg1 = qdict_get_str(qdict, "arg1"); | |
891 | const char *arg2 = qdict_get_try_str(qdict, "arg2"); | |
68ac40d2 | 892 | |
b4983c57 TH |
893 | if (arg2) { |
894 | s = slirp_lookup(mon, arg1); | |
93653066 | 895 | redir_str = arg2; |
68ac40d2 | 896 | } else { |
b4983c57 | 897 | s = slirp_lookup(mon, NULL); |
68ac40d2 MM |
898 | redir_str = arg1; |
899 | } | |
900 | if (s) { | |
5c843af2 | 901 | Error *err = NULL; |
d18572dd | 902 | if (slirp_hostfwd(s, redir_str, &err) < 0) { |
5c843af2 HP |
903 | error_report_err(err); |
904 | } | |
68ac40d2 MM |
905 | } |
906 | ||
907 | } | |
908 | ||
68ac40d2 MM |
909 | #ifndef _WIN32 |
910 | ||
911 | /* automatic user mode samba server configuration */ | |
912 | static void slirp_smb_cleanup(SlirpState *s) | |
913 | { | |
5a01e99f | 914 | int ret; |
68ac40d2 | 915 | |
f95cc8b6 DDAG |
916 | if (s->smb_dir) { |
917 | gchar *cmd = g_strdup_printf("rm -rf %s", s->smb_dir); | |
5a01e99f | 918 | ret = system(cmd); |
24ac07de | 919 | if (ret == -1 || !WIFEXITED(ret)) { |
1ecda02b | 920 | error_report("'%s' failed.", cmd); |
5a01e99f | 921 | } else if (WEXITSTATUS(ret)) { |
1ecda02b MA |
922 | error_report("'%s' failed. Error code: %d", |
923 | cmd, WEXITSTATUS(ret)); | |
5a01e99f | 924 | } |
f95cc8b6 DDAG |
925 | g_free(cmd); |
926 | g_free(s->smb_dir); | |
927 | s->smb_dir = NULL; | |
68ac40d2 MM |
928 | } |
929 | } | |
930 | ||
931 | static int slirp_smb(SlirpState* s, const char *exported_dir, | |
5c843af2 | 932 | struct in_addr vserver_addr, Error **errp) |
68ac40d2 | 933 | { |
f95cc8b6 DDAG |
934 | char *smb_conf; |
935 | char *smb_cmdline; | |
1cb1c5d1 | 936 | struct passwd *passwd; |
68ac40d2 MM |
937 | FILE *f; |
938 | ||
1cb1c5d1 JK |
939 | passwd = getpwuid(geteuid()); |
940 | if (!passwd) { | |
5c843af2 | 941 | error_setg(errp, "Failed to retrieve user name"); |
1cb1c5d1 JK |
942 | return -1; |
943 | } | |
944 | ||
927d811b | 945 | if (access(CONFIG_SMBD_COMMAND, F_OK)) { |
5c843af2 HP |
946 | error_setg(errp, "Could not find '%s', please install it", |
947 | CONFIG_SMBD_COMMAND); | |
927d811b DH |
948 | return -1; |
949 | } | |
950 | ||
951 | if (access(exported_dir, R_OK | X_OK)) { | |
5c843af2 HP |
952 | error_setg(errp, "Error accessing shared directory '%s': %s", |
953 | exported_dir, strerror(errno)); | |
927d811b DH |
954 | return -1; |
955 | } | |
956 | ||
f95cc8b6 DDAG |
957 | s->smb_dir = g_dir_make_tmp("qemu-smb.XXXXXX", NULL); |
958 | if (!s->smb_dir) { | |
5c843af2 | 959 | error_setg(errp, "Could not create samba server dir"); |
68ac40d2 MM |
960 | return -1; |
961 | } | |
f95cc8b6 | 962 | smb_conf = g_strdup_printf("%s/%s", s->smb_dir, "smb.conf"); |
68ac40d2 MM |
963 | |
964 | f = fopen(smb_conf, "w"); | |
965 | if (!f) { | |
966 | slirp_smb_cleanup(s); | |
5c843af2 HP |
967 | error_setg(errp, |
968 | "Could not create samba server configuration file '%s'", | |
969 | smb_conf); | |
f95cc8b6 | 970 | g_free(smb_conf); |
68ac40d2 MM |
971 | return -1; |
972 | } | |
973 | fprintf(f, | |
974 | "[global]\n" | |
975 | "private dir=%s\n" | |
7912d04b PW |
976 | "interfaces=127.0.0.1\n" |
977 | "bind interfaces only=yes\n" | |
68ac40d2 MM |
978 | "pid directory=%s\n" |
979 | "lock directory=%s\n" | |
276eda57 | 980 | "state directory=%s\n" |
7912d04b | 981 | "cache directory=%s\n" |
b87b8a8b | 982 | "ncalrpc dir=%s/ncalrpc\n" |
68ac40d2 MM |
983 | "log file=%s/log.smbd\n" |
984 | "smb passwd file=%s/smbpasswd\n" | |
c2804ee6 MB |
985 | "security = user\n" |
986 | "map to guest = Bad User\n" | |
7912d04b PW |
987 | "load printers = no\n" |
988 | "printing = bsd\n" | |
989 | "disable spoolss = yes\n" | |
990 | "usershare max shares = 0\n" | |
68ac40d2 MM |
991 | "[qemu]\n" |
992 | "path=%s\n" | |
993 | "read only=no\n" | |
1cb1c5d1 JK |
994 | "guest ok=yes\n" |
995 | "force user=%s\n", | |
68ac40d2 MM |
996 | s->smb_dir, |
997 | s->smb_dir, | |
998 | s->smb_dir, | |
999 | s->smb_dir, | |
1000 | s->smb_dir, | |
276eda57 | 1001 | s->smb_dir, |
b87b8a8b | 1002 | s->smb_dir, |
7912d04b | 1003 | s->smb_dir, |
1cb1c5d1 JK |
1004 | exported_dir, |
1005 | passwd->pw_name | |
68ac40d2 MM |
1006 | ); |
1007 | fclose(f); | |
1008 | ||
f95cc8b6 | 1009 | smb_cmdline = g_strdup_printf("%s -l %s -s %s", |
44d8d2b2 | 1010 | CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); |
f95cc8b6 | 1011 | g_free(smb_conf); |
68ac40d2 | 1012 | |
44b4ff24 MAL |
1013 | if (slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 139) < 0 || |
1014 | slirp_add_exec(s->slirp, smb_cmdline, &vserver_addr, 445) < 0) { | |
68ac40d2 | 1015 | slirp_smb_cleanup(s); |
f95cc8b6 | 1016 | g_free(smb_cmdline); |
5c843af2 | 1017 | error_setg(errp, "Conflicting/invalid smbserver address"); |
68ac40d2 MM |
1018 | return -1; |
1019 | } | |
f95cc8b6 | 1020 | g_free(smb_cmdline); |
68ac40d2 MM |
1021 | return 0; |
1022 | } | |
1023 | ||
68ac40d2 MM |
1024 | #endif /* !defined(_WIN32) */ |
1025 | ||
68ac40d2 MM |
1026 | static int guestfwd_can_read(void *opaque) |
1027 | { | |
1028 | struct GuestFwd *fwd = opaque; | |
1029 | return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port); | |
1030 | } | |
1031 | ||
1032 | static void guestfwd_read(void *opaque, const uint8_t *buf, int size) | |
1033 | { | |
1034 | struct GuestFwd *fwd = opaque; | |
1035 | slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size); | |
1036 | } | |
1037 | ||
625a526b | 1038 | static ssize_t guestfwd_write(const void *buf, size_t len, void *chr) |
44b4ff24 MAL |
1039 | { |
1040 | return qemu_chr_fe_write_all(chr, buf, len); | |
1041 | } | |
1042 | ||
d18572dd | 1043 | static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) |
68ac40d2 | 1044 | { |
ffe02f55 | 1045 | /* TODO: IPv6 */ |
68ac40d2 MM |
1046 | struct in_addr server = { .s_addr = 0 }; |
1047 | struct GuestFwd *fwd; | |
1048 | const char *p; | |
1049 | char buf[128]; | |
1050 | char *end; | |
1051 | int port; | |
1052 | ||
1053 | p = config_str; | |
d18572dd TH |
1054 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { |
1055 | goto fail_syntax; | |
1056 | } | |
1057 | if (strcmp(buf, "tcp") && buf[0] != '\0') { | |
1058 | goto fail_syntax; | |
1059 | } | |
1060 | if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) { | |
1061 | goto fail_syntax; | |
1062 | } | |
1063 | if (buf[0] != '\0' && !inet_aton(buf, &server)) { | |
1064 | goto fail_syntax; | |
1065 | } | |
1066 | if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) { | |
1067 | goto fail_syntax; | |
68ac40d2 MM |
1068 | } |
1069 | port = strtol(buf, &end, 10); | |
1070 | if (*end != '\0' || port < 1 || port > 65535) { | |
1071 | goto fail_syntax; | |
1072 | } | |
1073 | ||
a9899996 | 1074 | snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); |
68ac40d2 | 1075 | |
3624730a | 1076 | if (g_str_has_prefix(p, "cmd:")) { |
44b4ff24 | 1077 | if (slirp_add_exec(s->slirp, &p[4], &server, port) < 0) { |
5c843af2 HP |
1078 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1079 | "forwarding rule '%s'", config_str); | |
b412eb61 AG |
1080 | return -1; |
1081 | } | |
1082 | } else { | |
32a6ebec | 1083 | Error *err = NULL; |
95e30b2a MAL |
1084 | /* |
1085 | * FIXME: sure we want to support implicit | |
1086 | * muxed monitors here? | |
1087 | */ | |
4ad6f6cb | 1088 | Chardev *chr = qemu_chr_new_mux_mon(buf, p, NULL); |
32a6ebec MAL |
1089 | |
1090 | if (!chr) { | |
5c843af2 HP |
1091 | error_setg(errp, "Could not open guest forwarding device '%s'", |
1092 | buf); | |
32a6ebec MAL |
1093 | return -1; |
1094 | } | |
1095 | ||
1096 | fwd = g_new(struct GuestFwd, 1); | |
1097 | qemu_chr_fe_init(&fwd->hd, chr, &err); | |
1098 | if (err) { | |
5c843af2 | 1099 | error_propagate(errp, err); |
8e207c32 | 1100 | object_unparent(OBJECT(chr)); |
b412eb61 AG |
1101 | g_free(fwd); |
1102 | return -1; | |
1103 | } | |
68ac40d2 | 1104 | |
44b4ff24 MAL |
1105 | if (slirp_add_guestfwd(s->slirp, guestfwd_write, &fwd->hd, |
1106 | &server, port) < 0) { | |
5c843af2 HP |
1107 | error_setg(errp, "Conflicting/invalid host:port in guest " |
1108 | "forwarding rule '%s'", config_str); | |
8e207c32 | 1109 | qemu_chr_fe_deinit(&fwd->hd, true); |
b412eb61 AG |
1110 | g_free(fwd); |
1111 | return -1; | |
1112 | } | |
1113 | fwd->server = server; | |
1114 | fwd->port = port; | |
1115 | fwd->slirp = s->slirp; | |
1116 | ||
5345fdb4 | 1117 | qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, |
81517ba3 | 1118 | NULL, NULL, fwd, NULL, true); |
8d45a3b9 | 1119 | s->fwd = g_slist_append(s->fwd, fwd); |
b412eb61 | 1120 | } |
68ac40d2 MM |
1121 | return 0; |
1122 | ||
1123 | fail_syntax: | |
5c843af2 | 1124 | error_setg(errp, "Invalid guest forwarding rule '%s'", config_str); |
68ac40d2 MM |
1125 | return -1; |
1126 | } | |
1127 | ||
1ce6be24 | 1128 | void hmp_info_usernet(Monitor *mon, const QDict *qdict) |
68ac40d2 MM |
1129 | { |
1130 | SlirpState *s; | |
1131 | ||
1132 | QTAILQ_FOREACH(s, &slirp_stacks, entry) { | |
90d87a33 | 1133 | int id; |
442da403 | 1134 | bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; |
b7f43bf2 MAL |
1135 | char *info = slirp_connection_info(s->slirp); |
1136 | monitor_printf(mon, "Hub %d (%s):\n%s", | |
442da403 | 1137 | got_hub_id ? id : -1, |
b7f43bf2 MAL |
1138 | s->nc.name, info); |
1139 | g_free(info); | |
68ac40d2 MM |
1140 | } |
1141 | } | |
1142 | ||
094f15c5 LE |
1143 | static void |
1144 | net_init_slirp_configs(const StringList *fwd, int flags) | |
68ac40d2 | 1145 | { |
094f15c5 LE |
1146 | while (fwd) { |
1147 | struct slirp_config_str *config; | |
68ac40d2 | 1148 | |
094f15c5 LE |
1149 | config = g_malloc0(sizeof(*config)); |
1150 | pstrcpy(config->str, sizeof(config->str), fwd->value->str); | |
1151 | config->flags = flags; | |
1152 | config->next = slirp_configs; | |
1153 | slirp_configs = config; | |
68ac40d2 | 1154 | |
094f15c5 | 1155 | fwd = fwd->next; |
68ac40d2 | 1156 | } |
68ac40d2 MM |
1157 | } |
1158 | ||
63d2960b KS |
1159 | static const char **slirp_dnssearch(const StringList *dnsname) |
1160 | { | |
1161 | const StringList *c = dnsname; | |
1162 | size_t i = 0, num_opts = 0; | |
1163 | const char **ret; | |
1164 | ||
1165 | while (c) { | |
1166 | num_opts++; | |
1167 | c = c->next; | |
1168 | } | |
1169 | ||
1170 | if (num_opts == 0) { | |
1171 | return NULL; | |
1172 | } | |
1173 | ||
1174 | ret = g_malloc((num_opts + 1) * sizeof(*ret)); | |
1175 | c = dnsname; | |
1176 | while (c) { | |
1177 | ret[i++] = c->value->str; | |
1178 | c = c->next; | |
1179 | } | |
1180 | ret[i] = NULL; | |
1181 | return ret; | |
1182 | } | |
1183 | ||
cebea510 | 1184 | int net_init_slirp(const Netdev *netdev, const char *name, |
a30ecde6 | 1185 | NetClientState *peer, Error **errp) |
68ac40d2 MM |
1186 | { |
1187 | struct slirp_config_str *config; | |
094f15c5 | 1188 | char *vnet; |
68ac40d2 | 1189 | int ret; |
094f15c5 | 1190 | const NetdevUserOptions *user; |
63d2960b | 1191 | const char **dnssearch; |
0b11c036 | 1192 | bool ipv4 = true, ipv6 = true; |
68ac40d2 | 1193 | |
f394b2e2 EB |
1194 | assert(netdev->type == NET_CLIENT_DRIVER_USER); |
1195 | user = &netdev->u.user; | |
68ac40d2 | 1196 | |
0b11c036 ST |
1197 | if ((user->has_ipv6 && user->ipv6 && !user->has_ipv4) || |
1198 | (user->has_ipv4 && !user->ipv4)) { | |
1199 | ipv4 = 0; | |
1200 | } | |
1201 | if ((user->has_ipv4 && user->ipv4 && !user->has_ipv6) || | |
1202 | (user->has_ipv6 && !user->ipv6)) { | |
1203 | ipv6 = 0; | |
1204 | } | |
1205 | ||
094f15c5 LE |
1206 | vnet = user->has_net ? g_strdup(user->net) : |
1207 | user->has_ip ? g_strdup_printf("%s/24", user->ip) : | |
1208 | NULL; | |
68ac40d2 | 1209 | |
63d2960b KS |
1210 | dnssearch = slirp_dnssearch(user->dnssearch); |
1211 | ||
094f15c5 | 1212 | /* all optional fields are initialized to "all bits zero" */ |
68ac40d2 | 1213 | |
094f15c5 LE |
1214 | net_init_slirp_configs(user->hostfwd, SLIRP_CFG_HOSTFWD); |
1215 | net_init_slirp_configs(user->guestfwd, 0); | |
68ac40d2 | 1216 | |
0b11c036 ST |
1217 | ret = net_slirp_init(peer, "user", name, user->q_restrict, |
1218 | ipv4, vnet, user->host, | |
1219 | ipv6, user->ipv6_prefix, user->ipv6_prefixlen, | |
d8eb3864 | 1220 | user->ipv6_host, user->hostname, user->tftp, |
7aac531e | 1221 | user->bootfile, user->dhcpstart, |
d8eb3864 | 1222 | user->dns, user->ipv6_dns, user->smb, |
0fca92b9 FZ |
1223 | user->smbserver, dnssearch, user->domainname, |
1224 | user->tftp_server_name, errp); | |
68ac40d2 MM |
1225 | |
1226 | while (slirp_configs) { | |
1227 | config = slirp_configs; | |
1228 | slirp_configs = config->next; | |
7267c094 | 1229 | g_free(config); |
68ac40d2 MM |
1230 | } |
1231 | ||
7267c094 | 1232 | g_free(vnet); |
63d2960b | 1233 | g_free(dnssearch); |
68ac40d2 MM |
1234 | |
1235 | return ret; | |
1236 | } |