]>
Commit | Line | Data |
---|---|---|
cbcc6336 AL |
1 | #include "config-host.h" |
2 | #include "trace.h" | |
3 | #include "ui/qemu-spice.h" | |
dccfcd0e | 4 | #include "sysemu/char.h" |
cbcc6336 AL |
5 | #include <spice.h> |
6 | #include <spice-experimental.h> | |
5a49d3e9 | 7 | #include <spice/protocol.h> |
cbcc6336 | 8 | |
1de7afc9 | 9 | #include "qemu/osdep.h" |
cbcc6336 | 10 | |
cbcc6336 AL |
11 | typedef struct SpiceCharDriver { |
12 | CharDriverState* chr; | |
13 | SpiceCharDeviceInstance sin; | |
14 | char *subtype; | |
15 | bool active; | |
16 | uint8_t *buffer; | |
17 | uint8_t *datapos; | |
18 | ssize_t bufsize, datalen; | |
7a5448ce | 19 | QLIST_ENTRY(SpiceCharDriver) next; |
cbcc6336 AL |
20 | } SpiceCharDriver; |
21 | ||
7a5448ce MAL |
22 | static QLIST_HEAD(, SpiceCharDriver) spice_chars = |
23 | QLIST_HEAD_INITIALIZER(spice_chars); | |
24 | ||
cbcc6336 AL |
25 | static int vmc_write(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len) |
26 | { | |
27 | SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); | |
28 | ssize_t out = 0; | |
29 | ssize_t last_out; | |
30 | uint8_t* p = (uint8_t*)buf; | |
31 | ||
32 | while (len > 0) { | |
07a54d70 MAL |
33 | last_out = MIN(len, qemu_chr_be_can_write(scd->chr)); |
34 | if (last_out <= 0) { | |
cbcc6336 AL |
35 | break; |
36 | } | |
fa5efccb | 37 | qemu_chr_be_write(scd->chr, p, last_out); |
35106c2d HG |
38 | out += last_out; |
39 | len -= last_out; | |
40 | p += last_out; | |
cbcc6336 AL |
41 | } |
42 | ||
cbcc6336 AL |
43 | trace_spice_vmc_write(out, len + out); |
44 | return out; | |
45 | } | |
46 | ||
47 | static int vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len) | |
48 | { | |
49 | SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); | |
50 | int bytes = MIN(len, scd->datalen); | |
51 | ||
cbcc6336 AL |
52 | if (bytes > 0) { |
53 | memcpy(buf, scd->datapos, bytes); | |
54 | scd->datapos += bytes; | |
55 | scd->datalen -= bytes; | |
56 | assert(scd->datalen >= 0); | |
57 | if (scd->datalen == 0) { | |
58 | scd->datapos = 0; | |
59 | } | |
60 | } | |
61 | trace_spice_vmc_read(bytes, len); | |
62 | return bytes; | |
63 | } | |
64 | ||
5a49d3e9 MAL |
65 | #if SPICE_SERVER_VERSION >= 0x000c02 |
66 | static void vmc_event(SpiceCharDeviceInstance *sin, uint8_t event) | |
67 | { | |
68 | SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); | |
69 | int chr_event; | |
70 | ||
71 | switch (event) { | |
72 | case SPICE_PORT_EVENT_BREAK: | |
73 | chr_event = CHR_EVENT_BREAK; | |
74 | break; | |
75 | default: | |
5a49d3e9 MAL |
76 | return; |
77 | } | |
78 | ||
5a49d3e9 MAL |
79 | trace_spice_vmc_event(chr_event); |
80 | qemu_chr_be_event(scd->chr, chr_event); | |
81 | } | |
82 | #endif | |
83 | ||
f76e4c7f HG |
84 | static void vmc_state(SpiceCharDeviceInstance *sin, int connected) |
85 | { | |
86 | SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); | |
87 | ||
16665b94 HG |
88 | if ((scd->chr->be_open && connected) || |
89 | (!scd->chr->be_open && !connected)) { | |
f76e4c7f HG |
90 | return; |
91 | } | |
92 | ||
93 | qemu_chr_be_event(scd->chr, | |
94 | connected ? CHR_EVENT_OPENED : CHR_EVENT_CLOSED); | |
95 | } | |
96 | ||
cbcc6336 AL |
97 | static SpiceCharDeviceInterface vmc_interface = { |
98 | .base.type = SPICE_INTERFACE_CHAR_DEVICE, | |
99 | .base.description = "spice virtual channel char device", | |
100 | .base.major_version = SPICE_INTERFACE_CHAR_DEVICE_MAJOR, | |
101 | .base.minor_version = SPICE_INTERFACE_CHAR_DEVICE_MINOR, | |
f76e4c7f | 102 | .state = vmc_state, |
cbcc6336 AL |
103 | .write = vmc_write, |
104 | .read = vmc_read, | |
5a49d3e9 MAL |
105 | #if SPICE_SERVER_VERSION >= 0x000c02 |
106 | .event = vmc_event, | |
107 | #endif | |
cbcc6336 AL |
108 | }; |
109 | ||
110 | ||
111 | static void vmc_register_interface(SpiceCharDriver *scd) | |
112 | { | |
113 | if (scd->active) { | |
114 | return; | |
115 | } | |
cbcc6336 AL |
116 | scd->sin.base.sif = &vmc_interface.base; |
117 | qemu_spice_add_interface(&scd->sin.base); | |
118 | scd->active = true; | |
119 | trace_spice_vmc_register_interface(scd); | |
120 | } | |
121 | ||
122 | static void vmc_unregister_interface(SpiceCharDriver *scd) | |
123 | { | |
124 | if (!scd->active) { | |
125 | return; | |
126 | } | |
cbcc6336 AL |
127 | spice_server_remove_interface(&scd->sin.base); |
128 | scd->active = false; | |
129 | trace_spice_vmc_unregister_interface(scd); | |
130 | } | |
131 | ||
132 | ||
133 | static int spice_chr_write(CharDriverState *chr, const uint8_t *buf, int len) | |
134 | { | |
135 | SpiceCharDriver *s = chr->opaque; | |
136 | ||
cbcc6336 AL |
137 | assert(s->datalen == 0); |
138 | if (s->bufsize < len) { | |
139 | s->bufsize = len; | |
7267c094 | 140 | s->buffer = g_realloc(s->buffer, s->bufsize); |
cbcc6336 AL |
141 | } |
142 | memcpy(s->buffer, buf, len); | |
143 | s->datapos = s->buffer; | |
144 | s->datalen = len; | |
145 | spice_server_char_device_wakeup(&s->sin); | |
146 | return len; | |
147 | } | |
148 | ||
149 | static void spice_chr_close(struct CharDriverState *chr) | |
150 | { | |
151 | SpiceCharDriver *s = chr->opaque; | |
152 | ||
cbcc6336 | 153 | vmc_unregister_interface(s); |
7a5448ce | 154 | QLIST_REMOVE(s, next); |
5e9b473a HG |
155 | |
156 | g_free((char *)s->sin.subtype); | |
157 | #if SPICE_SERVER_VERSION >= 0x000c02 | |
158 | g_free((char *)s->sin.portname); | |
159 | #endif | |
7267c094 | 160 | g_free(s); |
cbcc6336 AL |
161 | } |
162 | ||
574b711a | 163 | static void spice_chr_set_fe_open(struct CharDriverState *chr, int fe_open) |
cd8f7df2 HG |
164 | { |
165 | SpiceCharDriver *s = chr->opaque; | |
574b711a HG |
166 | if (fe_open) { |
167 | vmc_register_interface(s); | |
168 | } else { | |
169 | vmc_unregister_interface(s); | |
170 | } | |
cd8f7df2 HG |
171 | } |
172 | ||
cbcc6336 AL |
173 | static void print_allowed_subtypes(void) |
174 | { | |
175 | const char** psubtype; | |
176 | int i; | |
177 | ||
178 | fprintf(stderr, "allowed names: "); | |
179 | for(i=0, psubtype = spice_server_char_device_recognized_subtypes(); | |
180 | *psubtype != NULL; ++psubtype, ++i) { | |
181 | if (i == 0) { | |
182 | fprintf(stderr, "%s", *psubtype); | |
183 | } else { | |
184 | fprintf(stderr, ", %s", *psubtype); | |
185 | } | |
186 | } | |
187 | fprintf(stderr, "\n"); | |
188 | } | |
189 | ||
cd153e2a | 190 | static CharDriverState *chr_open(const char *subtype) |
cbcc6336 AL |
191 | { |
192 | CharDriverState *chr; | |
193 | SpiceCharDriver *s; | |
71b423f4 MAL |
194 | |
195 | chr = g_malloc0(sizeof(CharDriverState)); | |
196 | s = g_malloc0(sizeof(SpiceCharDriver)); | |
197 | s->chr = chr; | |
71b423f4 | 198 | s->active = false; |
5e9b473a | 199 | s->sin.subtype = g_strdup(subtype); |
71b423f4 MAL |
200 | chr->opaque = s; |
201 | chr->chr_write = spice_chr_write; | |
202 | chr->chr_close = spice_chr_close; | |
574b711a | 203 | chr->chr_set_fe_open = spice_chr_set_fe_open; |
71b423f4 | 204 | |
7a5448ce MAL |
205 | QLIST_INSERT_HEAD(&spice_chars, s, next); |
206 | ||
71b423f4 MAL |
207 | return chr; |
208 | } | |
209 | ||
cd153e2a | 210 | CharDriverState *qemu_chr_open_spice_vmc(const char *type) |
71b423f4 | 211 | { |
71b423f4 | 212 | const char **psubtype = spice_server_char_device_recognized_subtypes(); |
cbcc6336 | 213 | |
cd153e2a | 214 | if (type == NULL) { |
cbcc6336 AL |
215 | fprintf(stderr, "spice-qemu-char: missing name parameter\n"); |
216 | print_allowed_subtypes(); | |
1f51470d | 217 | return NULL; |
cbcc6336 | 218 | } |
cd153e2a GH |
219 | for (; *psubtype != NULL; ++psubtype) { |
220 | if (strcmp(type, *psubtype) == 0) { | |
cbcc6336 AL |
221 | break; |
222 | } | |
223 | } | |
cd153e2a GH |
224 | if (*psubtype == NULL) { |
225 | fprintf(stderr, "spice-qemu-char: unsupported type: %s\n", type); | |
cbcc6336 | 226 | print_allowed_subtypes(); |
1f51470d | 227 | return NULL; |
cbcc6336 AL |
228 | } |
229 | ||
52fe0e75 | 230 | return chr_open(type); |
cbcc6336 | 231 | } |
5a49d3e9 MAL |
232 | |
233 | #if SPICE_SERVER_VERSION >= 0x000c02 | |
cd153e2a | 234 | CharDriverState *qemu_chr_open_spice_port(const char *name) |
5a49d3e9 MAL |
235 | { |
236 | CharDriverState *chr; | |
237 | SpiceCharDriver *s; | |
5a49d3e9 MAL |
238 | |
239 | if (name == NULL) { | |
240 | fprintf(stderr, "spice-qemu-char: missing name parameter\n"); | |
241 | return NULL; | |
242 | } | |
243 | ||
cd153e2a | 244 | chr = chr_open("port"); |
5a49d3e9 | 245 | s = chr->opaque; |
5e9b473a | 246 | s->sin.portname = g_strdup(name); |
5a49d3e9 MAL |
247 | |
248 | return chr; | |
249 | } | |
afd0b409 MAL |
250 | |
251 | void qemu_spice_register_ports(void) | |
252 | { | |
253 | SpiceCharDriver *s; | |
254 | ||
255 | QLIST_FOREACH(s, &spice_chars, next) { | |
256 | if (s->sin.portname == NULL) { | |
257 | continue; | |
258 | } | |
259 | vmc_register_interface(s); | |
260 | } | |
261 | } | |
5a49d3e9 | 262 | #endif |
26c60614 | 263 | |
cd153e2a GH |
264 | static void qemu_chr_parse_spice_vmc(QemuOpts *opts, ChardevBackend *backend, |
265 | Error **errp) | |
266 | { | |
267 | const char *name = qemu_opt_get(opts, "name"); | |
268 | ||
269 | if (name == NULL) { | |
270 | error_setg(errp, "chardev: spice channel: no name given"); | |
271 | return; | |
272 | } | |
273 | backend->spicevmc = g_new0(ChardevSpiceChannel, 1); | |
274 | backend->spicevmc->type = g_strdup(name); | |
275 | } | |
276 | ||
277 | static void qemu_chr_parse_spice_port(QemuOpts *opts, ChardevBackend *backend, | |
278 | Error **errp) | |
279 | { | |
280 | const char *name = qemu_opt_get(opts, "name"); | |
281 | ||
282 | if (name == NULL) { | |
283 | error_setg(errp, "chardev: spice port: no name given"); | |
284 | return; | |
285 | } | |
286 | backend->spiceport = g_new0(ChardevSpicePort, 1); | |
287 | backend->spiceport->fqdn = g_strdup(name); | |
288 | } | |
289 | ||
26c60614 AL |
290 | static void register_types(void) |
291 | { | |
cd153e2a GH |
292 | register_char_driver_qapi("spicevmc", CHARDEV_BACKEND_KIND_SPICEVMC, |
293 | qemu_chr_parse_spice_vmc); | |
294 | register_char_driver_qapi("spiceport", CHARDEV_BACKEND_KIND_SPICEPORT, | |
295 | qemu_chr_parse_spice_port); | |
26c60614 AL |
296 | } |
297 | ||
298 | type_init(register_types); |