static Pipe*
pipe_load( PipeDevice* dev, QEMUFile* file, int version_id )
{
Pipe* pipe;
const PipeService* service = NULL;
int state = qemu_get_byte(file);
uint64_t channel;
if (state != 0) {
/* Pipe is associated with a service. */
char* name = qemu_get_string(file);
if (name == NULL)
return NULL;
service = goldfish_pipe_find_type(name);
if (service == NULL) {
D("No QEMU pipe service named '%s'", name);
AFREE(name);
return NULL;
}
}
if (version_id == GOLDFISH_PIPE_SAVE_VERSION_LEGACY) {
channel = qemu_get_be32(file);
} else {
channel = qemu_get_be64(file);
}
pipe = pipe_new(channel, dev);
pipe->wanted = qemu_get_byte(file);
pipe->closed = qemu_get_byte(file);
if (qemu_get_byte(file) != 0) {
pipe->args = qemu_get_string(file);
}
pipe->service = service;
if (service != NULL) {
pipe->funcs = &service->funcs;
}
if (pipe->funcs->load) {
pipe->opaque = pipe->funcs->load(pipe, service ? service->opaque : NULL, pipe->args, file);
if (pipe->opaque == NULL) {
AFREE(pipe);
return NULL;
}
} else {
/* Force-close the pipe on load */
pipe->closed = 1;
}
return pipe;
}
static Pipe*
pipe_load( PipeDevice* dev, QEMUFile* file )
{
Pipe* pipe;
const PipeService* service = NULL;
int state = qemu_get_byte(file);
uint32_t channel;
if (state != 0) {
char* name = qemu_get_string(file);
if (name == NULL)
return NULL;
service = goldfish_pipe_find_type(name);
if (service == NULL) {
D("No QEMU pipe service named '%s'", name);
AFREE(name);
return NULL;
}
}
channel = qemu_get_be32(file);
pipe = pipe_new(channel, dev);
pipe->wanted = qemu_get_byte(file);
pipe->closed = qemu_get_byte(file);
if (qemu_get_byte(file) != 0) {
pipe->args = qemu_get_string(file);
}
pipe->service = service;
if (service != NULL) {
pipe->funcs = &service->funcs;
}
if (pipe->funcs->load) {
pipe->opaque = pipe->funcs->load(pipe, service ? service->opaque : NULL, pipe->args, file);
if (pipe->opaque == NULL) {
AFREE(pipe);
return NULL;
}
} else {
pipe->closed = 1;
}
return pipe;
}
static int
pipeConnector_sendBuffers( void* opaque, const GoldfishPipeBuffer* buffers, int numBuffers )
{
PipeConnector* pcon = opaque;
const GoldfishPipeBuffer* buffers_limit = buffers + numBuffers;
int ret = 0;
DD("%s: channel=0x%x numBuffers=%d", __FUNCTION__,
pcon->pipe->channel,
numBuffers);
while (buffers < buffers_limit) {
int avail;
DD("%s: buffer data (%3d bytes): '%.*s'", __FUNCTION__,
buffers[0].size, buffers[0].size, buffers[0].data);
if (buffers[0].size == 0) {
buffers++;
continue;
}
avail = sizeof(pcon->buffer) - pcon->buffpos;
if (avail > buffers[0].size)
avail = buffers[0].size;
if (avail > 0) {
memcpy(pcon->buffer + pcon->buffpos, buffers[0].data, avail);
pcon->buffpos += avail;
ret += avail;
}
buffers++;
}
if (memchr(pcon->buffer, '\0', pcon->buffpos) != NULL) {
char* pipeName;
char* pipeArgs;
D("%s: connector: '%s'", __FUNCTION__, pcon->buffer);
if (memcmp(pcon->buffer, "pipe:", 5) != 0) {
D("%s: Unknown pipe connection: '%s'", __FUNCTION__, pcon->buffer);
return PIPE_ERROR_INVAL;
}
pipeName = pcon->buffer + 5;
pipeArgs = strchr(pipeName, ':');
if (pipeArgs != NULL) {
*pipeArgs++ = '\0';
if (!*pipeArgs)
pipeArgs = NULL;
}
Pipe* pipe = pcon->pipe;
const PipeService* svc = goldfish_pipe_find_type(pipeName);
if (svc == NULL) {
D("%s: Unknown server!", __FUNCTION__);
return PIPE_ERROR_INVAL;
}
void* peer = svc->funcs.init(pipe, svc->opaque, pipeArgs);
if (peer == NULL) {
D("%s: Initialization failed!", __FUNCTION__);
return PIPE_ERROR_INVAL;
}
pipe->opaque = peer;
pipe->service = svc;
pipe->funcs = &svc->funcs;
pipe->args = ASTRDUP(pipeArgs);
AFREE(pcon);
}
return ret;
}
static int
pipeConnector_sendBuffers( void* opaque, const GoldfishPipeBuffer* buffers, int numBuffers )
{
PipeConnector* pcon = opaque;
const GoldfishPipeBuffer* buffers_limit = buffers + numBuffers;
int ret = 0;
DD("%s: channel=0x%llx numBuffers=%d", __FUNCTION__,
(unsigned long long)pcon->pipe->channel,
numBuffers);
while (buffers < buffers_limit) {
int avail;
DD("%s: buffer data (%3d bytes): '%.*s'", __FUNCTION__,
buffers[0].size, buffers[0].size, buffers[0].data);
if (buffers[0].size == 0) {
buffers++;
continue;
}
avail = sizeof(pcon->buffer) - pcon->buffpos;
if (avail > buffers[0].size)
avail = buffers[0].size;
if (avail > 0) {
memcpy(pcon->buffer + pcon->buffpos, buffers[0].data, avail);
pcon->buffpos += avail;
ret += avail;
}
buffers++;
}
/* Now check that our buffer contains a zero-terminated string */
if (memchr(pcon->buffer, '\0', pcon->buffpos) != NULL) {
/* Acceptable formats for the connection string are:
*
* pipe:<name>
* pipe:<name>:<arguments>
*/
char* pipeName;
char* pipeArgs;
D("%s: connector: '%s'", __FUNCTION__, pcon->buffer);
if (memcmp(pcon->buffer, "pipe:", 5) != 0) {
/* Nope, we don't handle these for now. */
D("%s: Unknown pipe connection: '%s'", __FUNCTION__, pcon->buffer);
return PIPE_ERROR_INVAL;
}
pipeName = pcon->buffer + 5;
pipeArgs = strchr(pipeName, ':');
if (pipeArgs != NULL) {
*pipeArgs++ = '\0';
if (!*pipeArgs)
pipeArgs = NULL;
}
Pipe* pipe = pcon->pipe;
const PipeService* svc = goldfish_pipe_find_type(pipeName);
if (svc == NULL) {
D("%s: Unknown server!", __FUNCTION__);
return PIPE_ERROR_INVAL;
}
void* peer = svc->funcs.init(pipe, svc->opaque, pipeArgs);
if (peer == NULL) {
D("%s: Initialization failed!", __FUNCTION__);
return PIPE_ERROR_INVAL;
}
/* Do the evil switch now */
pipe->opaque = peer;
pipe->service = svc;
pipe->funcs = &svc->funcs;
pipe->args = ASTRDUP(pipeArgs);
AFREE(pcon);
}
return ret;
}
