mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-25 14:57:20 +00:00
[client] spice: protocol updates for performance and agent support
Note: agent support is not complete at this point due to lack of documentation.
This commit is contained in:
Geoffrey McRae
parent
5bd748680f
commit
3df4bb3a54
@ -132,4 +132,10 @@ typedef struct SpiceMsgcMousePress
|
||||
SpiceMsgcMousePress,
|
||||
SpiceMsgcMouseRelease;
|
||||
|
||||
|
||||
// spice is missing these defines, the offical reference library incorrectly uses the VD defines
|
||||
#define COMMON_CAPS_BYTES (((SPICE_COMMON_CAP_MINI_HEADER + 32) / 8) & ~3)
|
||||
#define COMMON_SET_CAPABILITY(caps, index) \
|
||||
{ (caps)[(index) / 32] |= (1 << ((index) % 32)); }
|
||||
|
||||
#pragma pack(pop)
|
||||
@ -17,6 +17,9 @@ this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
||||
Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
|
||||
//#define DEBUG_SPICE
|
||||
|
||||
#include "spice.h"
|
||||
#include "utils.h"
|
||||
#include "debug.h"
|
||||
@ -26,6 +29,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
@ -36,6 +40,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <spice/protocol.h>
|
||||
#include <spice/vd_agent.h>
|
||||
|
||||
#include "messages.h"
|
||||
#include "rsa.h"
|
||||
@ -52,6 +57,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
#define DEBUG_KEYBOARD(fmt, args...) do {} while(0)
|
||||
#endif
|
||||
|
||||
#define SPICE_AGENT_TOKENS_MAX 10
|
||||
|
||||
|
||||
// ============================================================================
|
||||
|
||||
@ -59,6 +66,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
struct SpiceChannel
|
||||
{
|
||||
bool connected;
|
||||
bool ready;
|
||||
bool initDone;
|
||||
uint8_t channelType;
|
||||
int socket;
|
||||
@ -122,18 +130,23 @@ void spice_disconnect_channel(struct SpiceChannel * channel);
|
||||
|
||||
bool spice_process_ack(struct SpiceChannel * channel);
|
||||
|
||||
bool spice_on_common_read (struct SpiceChannel * channel, SpiceDataHeader * header, bool * handled);
|
||||
bool spice_on_common_read (struct SpiceChannel * channel, SpiceMiniDataHeader * header, bool * handled);
|
||||
bool spice_on_main_channel_read ();
|
||||
bool spice_on_inputs_channel_read();
|
||||
|
||||
bool spice_agent_connect();
|
||||
void spice_agent_disconnect();
|
||||
bool spice_agent_process ();
|
||||
bool spice_agent_connect (bool startup);
|
||||
bool spice_agent_send_caps(bool request);
|
||||
|
||||
bool spice_read (const struct SpiceChannel * channel, void * buffer, const ssize_t size);
|
||||
ssize_t spice_write (const struct SpiceChannel * channel, const void * buffer, const ssize_t size);
|
||||
bool spice_write_msg(struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size);
|
||||
bool spice_discard (const struct SpiceChannel * channel, ssize_t size);
|
||||
// thread safe read/write methods
|
||||
bool spice_write_msg (struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size);
|
||||
bool spice_agent_write_msg (uint32_t type, const void * buffer, const ssize_t size);
|
||||
|
||||
// non thread safe read/write methods (nl = non-locking)
|
||||
bool spice_read_nl (const struct SpiceChannel * channel, void * buffer, const ssize_t size);
|
||||
ssize_t spice_write_nl (const struct SpiceChannel * channel, const void * buffer, const ssize_t size);
|
||||
bool spice_discard_nl (const struct SpiceChannel * channel, ssize_t size);
|
||||
bool spice_write_msg_nl( struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size);
|
||||
|
||||
// ============================================================================
|
||||
|
||||
@ -264,20 +277,19 @@ bool spice_process_ack(struct SpiceChannel * channel)
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_on_common_read(struct SpiceChannel * channel, SpiceDataHeader * header, bool * handled)
|
||||
bool spice_on_common_read(struct SpiceChannel * channel, SpiceMiniDataHeader * header, bool * handled)
|
||||
{
|
||||
*handled = false;
|
||||
if (!spice_read(channel, header, sizeof(SpiceDataHeader)))
|
||||
if (!spice_read_nl(channel, header, sizeof(SpiceMiniDataHeader)))
|
||||
{
|
||||
DEBUG_ERROR("read failure");
|
||||
return false;
|
||||
}
|
||||
|
||||
#if 0
|
||||
printf("socket: %d, serial: %6u, type: %2u, size %6u, sub_list %4u\n",
|
||||
channel->socket,
|
||||
header->serial, header->type, header->size, header->sub_list);
|
||||
#endif
|
||||
//#if 0
|
||||
DEBUG_PROTO("socket: %d, type: %2u, size %6u",
|
||||
channel->socket, header->type, header->size);
|
||||
//#endif
|
||||
|
||||
if (!channel->initDone)
|
||||
return true;
|
||||
@ -300,7 +312,7 @@ bool spice_on_common_read(struct SpiceChannel * channel, SpiceDataHeader * heade
|
||||
*handled = true;
|
||||
|
||||
SpiceMsgSetAck in;
|
||||
if (!spice_read(channel, &in, sizeof(in)))
|
||||
if (!spice_read_nl(channel, &in, sizeof(in)))
|
||||
return false;
|
||||
|
||||
channel->ackFrequency = in.window;
|
||||
@ -319,14 +331,17 @@ bool spice_on_common_read(struct SpiceChannel * channel, SpiceDataHeader * heade
|
||||
*handled = true;
|
||||
|
||||
SpiceMsgPing in;
|
||||
if (!spice_read(channel, &in, sizeof(in)))
|
||||
if (!spice_read_nl(channel, &in, sizeof(in)))
|
||||
return false;
|
||||
|
||||
if (!spice_discard(channel, header->size - sizeof(in)))
|
||||
const int discard = header->size - sizeof(in);
|
||||
if (!spice_discard_nl(channel, discard))
|
||||
{
|
||||
DEBUG_ERROR("failed discarding enough bytes from the ping packet");
|
||||
DEBUG_ERROR("failed discarding enough bytes (%d) from the ping packet", discard);
|
||||
return false;
|
||||
}
|
||||
else
|
||||
DEBUG_PROTO("discard %d", discard);
|
||||
|
||||
SpiceMsgcPong out;
|
||||
out.id = in.id;
|
||||
@ -349,11 +364,11 @@ bool spice_on_common_read(struct SpiceChannel * channel, SpiceDataHeader * heade
|
||||
{
|
||||
DEBUG_PROTO("SPICE_MSG_NOTIFY");
|
||||
SpiceMsgNotify in;
|
||||
if (!spice_read(channel, &in, sizeof(in)))
|
||||
if (!spice_read_nl(channel, &in, sizeof(in)))
|
||||
return false;
|
||||
|
||||
char msg[in.message_len+1];
|
||||
if (!spice_read(channel, msg, in.message_len+1))
|
||||
if (!spice_read_nl(channel, msg, in.message_len+1))
|
||||
return false;
|
||||
|
||||
DEBUG_INFO("notify message: %s", msg);
|
||||
@ -371,7 +386,7 @@ bool spice_on_main_channel_read()
|
||||
{
|
||||
struct SpiceChannel *channel = &spice.scMain;
|
||||
|
||||
SpiceDataHeader header;
|
||||
SpiceMiniDataHeader header;
|
||||
bool handled;
|
||||
|
||||
if (!spice_on_common_read(channel, &header, &handled))
|
||||
@ -396,7 +411,7 @@ bool spice_on_main_channel_read()
|
||||
|
||||
channel->initDone = true;
|
||||
SpiceMsgMainInit msg;
|
||||
if (!spice_read(channel, &msg, sizeof(msg)))
|
||||
if (!spice_read_nl(channel, &msg, sizeof(msg)))
|
||||
{
|
||||
spice_disconnect();
|
||||
return false;
|
||||
@ -405,13 +420,14 @@ bool spice_on_main_channel_read()
|
||||
spice.sessionID = msg.session_id;
|
||||
|
||||
spice.agentTokens = msg.agent_tokens;
|
||||
if (msg.agent_connected)
|
||||
spice.hasAgent = msg.agent_connected;
|
||||
|
||||
if (spice.hasAgent && !spice_agent_connect(true))
|
||||
{
|
||||
spice.hasAgent = true;
|
||||
spice_agent_connect();
|
||||
spice_disconnect();
|
||||
DEBUG_ERROR("failed to connect to spice agent");
|
||||
return false;
|
||||
}
|
||||
else
|
||||
spice.hasAgent = false;
|
||||
|
||||
if (msg.current_mouse_mode != SPICE_MOUSE_MODE_CLIENT && !spice_mouse_mode(false))
|
||||
{
|
||||
@ -434,7 +450,7 @@ bool spice_on_main_channel_read()
|
||||
DEBUG_PROTO("SPICE_MSG_MAIN_CHANNELS_LIST");
|
||||
|
||||
SpiceMainChannelsList msg;
|
||||
if (!spice_read(channel, &msg, sizeof(msg)))
|
||||
if (!spice_read_nl(channel, &msg, sizeof(msg)))
|
||||
{
|
||||
DEBUG_ERROR("Failed to read channel list msg");
|
||||
spice_disconnect();
|
||||
@ -443,7 +459,7 @@ bool spice_on_main_channel_read()
|
||||
|
||||
// documentation doesn't state that the array is null terminated but it seems that it is
|
||||
SpiceChannelID channels[msg.num_of_channels];
|
||||
if (!spice_read(channel, &channels, msg.num_of_channels * sizeof(SpiceChannelID)))
|
||||
if (!spice_read_nl(channel, &channels, msg.num_of_channels * sizeof(SpiceChannelID)))
|
||||
{
|
||||
DEBUG_ERROR("Failed to read channel list vector");
|
||||
spice_disconnect();
|
||||
@ -477,14 +493,19 @@ bool spice_on_main_channel_read()
|
||||
if (header.type == SPICE_MSG_MAIN_AGENT_CONNECTED)
|
||||
{
|
||||
spice.hasAgent = true;
|
||||
spice_agent_connect();
|
||||
if (!spice_agent_connect(false))
|
||||
{
|
||||
DEBUG_ERROR("failed to connect to spice agent");
|
||||
spice_disconnect();
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
if (header.type == SPICE_MSG_MAIN_AGENT_DISCONNECTED)
|
||||
{
|
||||
uint32_t error;
|
||||
if (!spice_read(channel, &error, sizeof(error)))
|
||||
if (!spice_read_nl(channel, &error, sizeof(error)))
|
||||
{
|
||||
DEBUG_ERROR("failed to read agent disconnect error code");
|
||||
spice_disconnect();
|
||||
@ -493,12 +514,22 @@ bool spice_on_main_channel_read()
|
||||
|
||||
DEBUG_INFO("Spice agent disconnected, error: %u", error);
|
||||
spice.hasAgent = false;
|
||||
spice_agent_disconnect();
|
||||
return true;
|
||||
}
|
||||
|
||||
if (header.type == SPICE_MSG_MAIN_AGENT_DATA && spice.hasAgent)
|
||||
{
|
||||
if (!spice_agent_process())
|
||||
{
|
||||
DEBUG_ERROR("failed to process spice agent message");
|
||||
spice_disconnect();
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
DEBUG_WARN("main channel unhandled message type %u", header.type);
|
||||
spice_discard(channel, header.size);
|
||||
spice_discard_nl(channel, header.size);
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -508,7 +539,7 @@ bool spice_on_inputs_channel_read()
|
||||
{
|
||||
struct SpiceChannel *channel = &spice.scInputs;
|
||||
|
||||
SpiceDataHeader header;
|
||||
SpiceMiniDataHeader header;
|
||||
bool handled;
|
||||
|
||||
if (!spice_on_common_read(channel, &header, &handled))
|
||||
@ -535,7 +566,7 @@ bool spice_on_inputs_channel_read()
|
||||
channel->initDone = true;
|
||||
|
||||
SpiceMsgInputsInit in;
|
||||
if (!spice_read(channel, &in, sizeof(in)))
|
||||
if (!spice_read_nl(channel, &in, sizeof(in)))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
@ -545,7 +576,7 @@ bool spice_on_inputs_channel_read()
|
||||
{
|
||||
DEBUG_PROTO("SPICE_MSG_INPUTS_KEY_MODIFIERS");
|
||||
SpiceMsgInputsInit in;
|
||||
if (!spice_read(channel, &in, sizeof(in)))
|
||||
if (!spice_read_nl(channel, &in, sizeof(in)))
|
||||
return false;
|
||||
|
||||
spice.kb.modifiers = in.modifiers;
|
||||
@ -566,7 +597,7 @@ bool spice_on_inputs_channel_read()
|
||||
}
|
||||
|
||||
DEBUG_WARN("inputs channel unhandled message type %u", header.type);
|
||||
spice_discard(channel, header.size);
|
||||
spice_discard_nl(channel, header.size);
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -619,12 +650,17 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
}
|
||||
channel->connected = true;
|
||||
|
||||
uint32_t supportCaps[COMMON_CAPS_BYTES / sizeof(uint32_t)];
|
||||
COMMON_SET_CAPABILITY(supportCaps, SPICE_COMMON_CAP_PROTOCOL_AUTH_SELECTION);
|
||||
COMMON_SET_CAPABILITY(supportCaps, SPICE_COMMON_CAP_AUTH_SPICE );
|
||||
COMMON_SET_CAPABILITY(supportCaps, SPICE_COMMON_CAP_MINI_HEADER );
|
||||
|
||||
SpiceLinkHeader header =
|
||||
{
|
||||
.magic = SPICE_MAGIC ,
|
||||
.major_version = SPICE_VERSION_MAJOR,
|
||||
.minor_version = SPICE_VERSION_MINOR,
|
||||
.size = sizeof(SpiceLinkMess)
|
||||
.size = sizeof(SpiceLinkMess) + sizeof(supportCaps)
|
||||
};
|
||||
|
||||
SpiceLinkMess message =
|
||||
@ -632,15 +668,23 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
.connection_id = spice.sessionID,
|
||||
.channel_type = channel->channelType,
|
||||
.channel_id = spice.channelID,
|
||||
.num_common_caps = 0,
|
||||
.num_common_caps = sizeof(supportCaps) / sizeof(uint32_t),
|
||||
.num_channel_caps = 0,
|
||||
.caps_offset = sizeof(SpiceLinkMess)
|
||||
};
|
||||
|
||||
spice_write(channel, &header , sizeof(header ));
|
||||
spice_write(channel, &message, sizeof(message));
|
||||
if (
|
||||
!spice_write_nl(channel, &header , sizeof(header )) ||
|
||||
!spice_write_nl(channel, &message , sizeof(message )) ||
|
||||
!spice_write_nl(channel, &supportCaps, sizeof(supportCaps))
|
||||
)
|
||||
{
|
||||
DEBUG_ERROR("failed to write the initial payload");
|
||||
spice_disconnect_channel(channel);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!spice_read(channel, &header, sizeof(header)))
|
||||
if (!spice_read_nl(channel, &header, sizeof(header)))
|
||||
{
|
||||
DEBUG_ERROR("failed to read SpiceLinkHeader");
|
||||
spice_disconnect_channel(channel);
|
||||
@ -662,7 +706,7 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
}
|
||||
|
||||
SpiceLinkReply reply;
|
||||
if (!spice_read(channel, &reply, sizeof(reply)))
|
||||
if (!spice_read_nl(channel, &reply, sizeof(reply)))
|
||||
{
|
||||
DEBUG_ERROR("failed to read SpiceLinkReply");
|
||||
spice_disconnect_channel(channel);
|
||||
@ -678,17 +722,34 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
|
||||
uint32_t capsCommon [reply.num_common_caps ];
|
||||
uint32_t capsChannel[reply.num_channel_caps];
|
||||
spice_read(channel, &capsCommon , sizeof(capsCommon ));
|
||||
spice_read(channel, &capsChannel, sizeof(capsChannel));
|
||||
|
||||
struct spice_password pass;
|
||||
if (!spice_rsa_encrypt_password(reply.pub_key, spice.password, &pass))
|
||||
if (
|
||||
!spice_read_nl(channel, &capsCommon , sizeof(capsCommon)) ||
|
||||
!spice_read_nl(channel, &capsChannel, sizeof(capsChannel))
|
||||
)
|
||||
{
|
||||
DEBUG_ERROR("failed to read the capabilities");
|
||||
spice_disconnect_channel(channel);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!spice_write(channel, pass.data, pass.size))
|
||||
SpiceLinkAuthMechanism auth;
|
||||
auth.auth_mechanism = SPICE_COMMON_CAP_AUTH_SPICE;
|
||||
if (!spice_write_nl(channel, &auth, sizeof(auth)))
|
||||
{
|
||||
DEBUG_ERROR("failed to write the auth mechanism");
|
||||
spice_disconnect_channel(channel);
|
||||
return false;
|
||||
}
|
||||
|
||||
struct spice_password pass;
|
||||
if (!spice_rsa_encrypt_password(reply.pub_key, spice.password, &pass))
|
||||
{
|
||||
DEBUG_ERROR("failed to encrypt the password");
|
||||
spice_disconnect_channel(channel);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!spice_write_nl(channel, pass.data, pass.size))
|
||||
{
|
||||
spice_rsa_free_password(&pass);
|
||||
DEBUG_ERROR("failed to write encrypted data");
|
||||
@ -699,7 +760,7 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
spice_rsa_free_password(&pass);
|
||||
|
||||
uint32_t linkResult;
|
||||
if (!spice_read(channel, &linkResult, sizeof(linkResult)))
|
||||
if (!spice_read_nl(channel, &linkResult, sizeof(linkResult)))
|
||||
{
|
||||
DEBUG_ERROR("failed to read SpiceLinkResult");
|
||||
spice_disconnect_channel(channel);
|
||||
@ -713,6 +774,7 @@ bool spice_connect_channel(struct SpiceChannel * channel)
|
||||
return false;
|
||||
}
|
||||
|
||||
channel->ready = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -738,16 +800,21 @@ void spice_disconnect_channel(struct SpiceChannel * channel)
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_agent_connect()
|
||||
bool spice_agent_connect(bool startup)
|
||||
{
|
||||
return true;
|
||||
DEBUG_INFO("Spice agent available, sending start");
|
||||
|
||||
if (!spice_write_msg(&spice.scMain, SPICE_MSGC_MAIN_AGENT_START, &spice.agentTokens, sizeof(spice.agentTokens)))
|
||||
const uint32_t tokens = SPICE_AGENT_TOKENS_MAX;
|
||||
if (!spice_write_msg(&spice.scMain, SPICE_MSGC_MAIN_AGENT_START, &tokens, sizeof(tokens)))
|
||||
{
|
||||
DEBUG_ERROR("failed to send agent start message");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (startup && !spice_agent_send_caps(startup))
|
||||
return false;
|
||||
|
||||
//todo, agent setup
|
||||
|
||||
return true;
|
||||
@ -755,14 +822,116 @@ bool spice_agent_connect()
|
||||
|
||||
// ============================================================================
|
||||
|
||||
void spice_agent_disconnect()
|
||||
bool spice_agent_process()
|
||||
{
|
||||
//
|
||||
VDAgentMessage msg;
|
||||
|
||||
if (!spice_read_nl(&spice.scMain, &msg, sizeof(msg)))
|
||||
{
|
||||
DEBUG_ERROR("failed to read spice agent message");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (msg.protocol != VD_AGENT_PROTOCOL)
|
||||
{
|
||||
DEBUG_ERROR("invalid or unknown spice agent protocol");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (msg.type == VD_AGENT_ANNOUNCE_CAPABILITIES)
|
||||
{
|
||||
VDAgentAnnounceCapabilities *caps = (VDAgentAnnounceCapabilities *)malloc(msg.size);
|
||||
memset(caps, 0, msg.size);
|
||||
|
||||
if (!spice_read_nl(&spice.scMain, caps, msg.size))
|
||||
{
|
||||
DEBUG_ERROR("failed to read agent message payload");
|
||||
free(caps);
|
||||
return false;
|
||||
}
|
||||
|
||||
const int capsSize = VD_AGENT_CAPS_SIZE_FROM_MSG_SIZE(msg.size);
|
||||
if (VD_AGENT_HAS_CAPABILITY(caps->caps, capsSize, VD_AGENT_CAP_CLIPBOARD_BY_DEMAND))
|
||||
{
|
||||
DEBUG_INFO("clipboard capability detected");
|
||||
}
|
||||
else
|
||||
DEBUG_INFO("no clipboard capability detected");
|
||||
|
||||
|
||||
if (caps->request && !spice_agent_send_caps(false))
|
||||
{
|
||||
free(caps);
|
||||
return false;
|
||||
}
|
||||
|
||||
free(caps);
|
||||
return true;
|
||||
}
|
||||
|
||||
DEBUG_WARN("unknown agent message type %d", msg.type);
|
||||
spice_discard_nl(&spice.scMain, msg.size);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_agent_send_caps(bool request)
|
||||
{
|
||||
const ssize_t capsSize = (sizeof(VDAgentAnnounceCapabilities) + VD_AGENT_CAPS_BYTES);
|
||||
VDAgentAnnounceCapabilities *caps = (VDAgentAnnounceCapabilities *)malloc(capsSize);
|
||||
memset(caps, 0, capsSize);
|
||||
|
||||
caps->request = request ? 1 : 0;
|
||||
VD_AGENT_SET_CAPABILITY(caps->caps, VD_AGENT_CAP_CLIPBOARD_BY_DEMAND);
|
||||
|
||||
if (!spice_agent_write_msg(VD_AGENT_ANNOUNCE_CAPABILITIES, caps, capsSize))
|
||||
{
|
||||
DEBUG_ERROR("failed to send agent capabilities");
|
||||
free(caps);
|
||||
return false;
|
||||
}
|
||||
free(caps);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
|
||||
ssize_t spice_write(const struct SpiceChannel * channel, const void * buffer, const ssize_t size)
|
||||
bool spice_agent_write_msg(uint32_t type, const void * buffer, const ssize_t size)
|
||||
{
|
||||
DEBUG_PROTO("agent_write: t=%d, b=%ld", type, size);
|
||||
|
||||
VDAgentMessage msg;
|
||||
msg.protocol = VD_AGENT_PROTOCOL;
|
||||
msg.type = type;
|
||||
msg.opaque = 0;
|
||||
msg.size = size;
|
||||
|
||||
LG_LOCK(spice.scMain.lock);
|
||||
if (!spice_write_msg_nl(&spice.scMain, SPICE_MSGC_MAIN_AGENT_DATA, &msg, sizeof(msg)))
|
||||
{
|
||||
LG_UNLOCK(spice.scMain.lock);
|
||||
DEBUG_ERROR("failed to write agent data header");
|
||||
return false;
|
||||
}
|
||||
|
||||
if (spice_write_nl(&spice.scMain, buffer, size) != size)
|
||||
{
|
||||
LG_UNLOCK(spice.scMain.lock);
|
||||
DEBUG_ERROR("failed to write agent data payload");
|
||||
return false;
|
||||
}
|
||||
|
||||
LG_UNLOCK(spice.scMain.lock);
|
||||
return true;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
|
||||
ssize_t spice_write_nl(const struct SpiceChannel * channel, const void * buffer, const ssize_t size)
|
||||
{
|
||||
if (!channel->connected)
|
||||
{
|
||||
@ -785,45 +954,60 @@ ssize_t spice_write(const struct SpiceChannel * channel, const void * buffer, co
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_write_msg(struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size)
|
||||
inline bool spice_write_msg(struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size)
|
||||
{
|
||||
bool result;
|
||||
LG_LOCK(channel->lock);
|
||||
|
||||
SpiceDataHeader header;
|
||||
header.serial = channel->serial++;
|
||||
result = spice_write_msg_nl(channel, type, buffer, size);
|
||||
|
||||
LG_UNLOCK(channel->lock);
|
||||
return result;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_write_msg_nl(struct SpiceChannel * channel, uint32_t type, const void * buffer, const ssize_t size)
|
||||
{
|
||||
if (!channel->ready)
|
||||
{
|
||||
DEBUG_ERROR("channel not ready");
|
||||
return false;
|
||||
}
|
||||
|
||||
DEBUG_PROTO("write: t=%u, b=%ld", type, size);
|
||||
|
||||
SpiceMiniDataHeader header;
|
||||
++channel->serial;
|
||||
header.type = type;
|
||||
header.size = size;
|
||||
header.sub_list = 0;
|
||||
|
||||
if (spice_write(channel, &header, sizeof(header)) != sizeof(header))
|
||||
if (spice_write_nl(channel, &header, sizeof(header)) != sizeof(header))
|
||||
{
|
||||
DEBUG_ERROR("failed to write message header");
|
||||
LG_UNLOCK(channel->lock);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (buffer && size)
|
||||
{
|
||||
if (spice_write(channel, buffer, size) != size)
|
||||
if (spice_write_nl(channel, buffer, size) != size)
|
||||
{
|
||||
DEBUG_ERROR("failed to write message body");
|
||||
LG_UNLOCK(channel->lock);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
LG_UNLOCK(channel->lock);
|
||||
return true;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_read(const struct SpiceChannel * channel, void * buffer, const ssize_t size)
|
||||
bool spice_read_nl(const struct SpiceChannel * channel, void * buffer, const ssize_t size)
|
||||
{
|
||||
if (!channel->connected)
|
||||
{
|
||||
DEBUG_ERROR("not connected");
|
||||
return false;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!buffer)
|
||||
@ -844,17 +1028,25 @@ bool spice_read(const struct SpiceChannel * channel, void * buffer, const ssize_
|
||||
|
||||
// ============================================================================
|
||||
|
||||
bool spice_discard(const struct SpiceChannel * channel, ssize_t size)
|
||||
bool spice_discard_nl(const struct SpiceChannel * channel, ssize_t size)
|
||||
{
|
||||
while(size)
|
||||
void *c = malloc(8192);
|
||||
ssize_t left = size;
|
||||
while(left)
|
||||
{
|
||||
char c[8192];
|
||||
size_t len = read(channel->socket, c, size > sizeof(c) ? sizeof(c) : size);
|
||||
size_t len = read(channel->socket, c, left > 8192 ? 8192 : left);
|
||||
if (len <= 0)
|
||||
{
|
||||
if (len == 0)
|
||||
DEBUG_ERROR("remote end closed connection after %ld byte(s)", size - left);
|
||||
free(c);
|
||||
return false;
|
||||
|
||||
size -= len;
|
||||
}
|
||||
|
||||
left -= len;
|
||||
}
|
||||
|
||||
free(c);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
@ -24,6 +24,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
bool spice_connect(const char * host, const unsigned short port, const char * password);
|
||||
void spice_disconnect();
|
||||
bool spice_process();
|
||||
bool spice_agent_process();
|
||||
bool spice_ready();
|
||||
|
||||
bool spice_key_down (uint32_t code);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user