summaryrefslogtreecommitdiffstats
path: root/server/reds-private.h
blob: 9358d27cab5591380e71f533f6179e78056e47ae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
#ifndef REDS_PRIVATE_H
#define REDS_PRIVATE_H

#include <time.h>

#include <spice/protocol.h>

#define MIGRATE_TIMEOUT (1000 * 10) /* 10sec */
#define MM_TIMER_GRANULARITY_MS (1000 / 30)
#define MM_TIME_DELTA 400 /*ms*/

typedef struct TicketAuthentication {
    char password[SPICE_MAX_PASSWORD_LENGTH];
    time_t expiration_time;
} TicketAuthentication;

typedef struct TicketInfo {
    RSA *rsa;
    int rsa_size;
    BIGNUM *bn;
    SpiceLinkEncryptedTicket encrypted_ticket;
} TicketInfo;

typedef struct MonitorMode {
    uint32_t x_res;
    uint32_t y_res;
} MonitorMode;

typedef struct VDIReadBuf {
    RingItem link;
    uint32_t refs;

    int len;
    uint8_t data[SPICE_AGENT_MAX_DATA_SIZE];
} VDIReadBuf;

static VDIReadBuf *vdi_port_read_buf_get(void);
static VDIReadBuf *vdi_port_read_buf_ref(VDIReadBuf *buf);
static void vdi_port_read_buf_unref(VDIReadBuf *buf);

enum {
    VDI_PORT_READ_STATE_READ_HEADER,
    VDI_PORT_READ_STATE_GET_BUFF,
    VDI_PORT_READ_STATE_READ_DATA,
};

typedef struct VDIPortState {
    SpiceCharDeviceState *base;
    uint32_t plug_generation;
    int client_agent_started;

    /* write to agent */
    SpiceCharDeviceWriteBuffer *recv_from_client_buf;
    int recv_from_client_buf_pushed;
    AgentMsgFilter write_filter;

    /* read from agent */
    Ring read_bufs;
    uint32_t read_state;
    uint32_t message_recive_len;
    uint8_t *recive_pos;
    uint32_t recive_len;
    VDIReadBuf *current_read_buf;
    AgentMsgFilter read_filter;

    VDIChunkHeader vdi_chunk_header;

    SpiceMigrateDataMain *mig_data; /* storing it when migration data arrives
                                       before agent is attached */
} VDIPortState;

/* messages that are addressed to the agent and are created in the server */
typedef struct __attribute__ ((__packed__)) VDInternalBuf {
    VDIChunkHeader chunk_header;
    VDAgentMessage header;
    union {
        VDAgentMouseState mouse_state;
    }
    u;
} VDInternalBuf;

#ifdef RED_STATISTICS

#define REDS_MAX_STAT_NODES 100
#define REDS_STAT_SHM_SIZE (sizeof(SpiceStat) + REDS_MAX_STAT_NODES * sizeof(SpiceStatNode))

typedef struct RedsStatValue {
    uint32_t value;
    uint32_t min;
    uint32_t max;
    uint32_t average;
    uint32_t count;
} RedsStatValue;

#endif

typedef struct RedsMigPendingLink {
    RingItem ring_link; // list of links that belongs to the same client
    SpiceLinkMess *link_msg;
    RedsStream *stream;
} RedsMigPendingLink;

typedef struct RedsMigTargetClient {
    RingItem link;
    RedClient *client;
    Ring pending_links;
} RedsMigTargetClient;

typedef struct RedsMigWaitDisconnectClient {
    RingItem link;
    RedClient *client;
} RedsMigWaitDisconnectClient;

typedef struct SpiceCharDeviceStateItem {
    RingItem link;
    SpiceCharDeviceState *st;
} SpiceCharDeviceStateItem;

/* Intermediate state for on going monitors config message from a single
 * client, being passed to the guest */
typedef struct RedsClientMonitorsConfig {
    MainChannelClient *mcc;
    uint8_t *buffer;
    int buffer_size;
    int buffer_pos;
} RedsClientMonitorsConfig;

typedef struct RedsState {
    int listen_socket;
    int secure_listen_socket;
    SpiceWatch *listen_watch;
    SpiceWatch *secure_listen_watch;
    VDIPortState agent_state;
    int pending_mouse_event;
    Ring clients;
    int num_clients;
    MainChannel *main_channel;

    int mig_wait_connect; /* src waits for clients to establish connection to dest
                             (before migration starts) */
    int mig_wait_disconnect; /* src waits for clients to disconnect (after migration completes) */
    Ring mig_wait_disconnect_clients; /* List of RedsMigWaitDisconnectClient. Holds the clients
                                         which the src waits for their disconnection */

    int mig_inprogress;
    int expect_migrate;
    int src_do_seamless_migrate; /* per migration. Updated after the migration handshake
                                    between the 2 servers */
    int dst_do_seamless_migrate; /* per migration. Updated after the migration handshake
                                    between the 2 servers */
    Ring mig_target_clients;
    int num_mig_target_clients;
    RedsMigSpice *mig_spice;

    int num_of_channels;
    Ring channels;
    int mouse_mode;
    int is_client_mouse_allowed;
    int dispatcher_allows_client_mouse;
    MonitorMode monitor_mode;
    SpiceTimer *mig_timer;
    SpiceTimer *mm_timer;

    int vm_running;
    Ring char_devs_states; /* list of SpiceCharDeviceStateItem */
    int seamless_migration_enabled; /* command line arg */

    SSL_CTX *ctx;

#ifdef RED_STATISTICS
    char *stat_shm_name;
    SpiceStat *stat;
    pthread_mutex_t stat_lock;
    RedsStatValue roundtrip_stat;
#endif
    int peer_minor_version;
    int allow_multiple_clients;

    RedsClientMonitorsConfig client_monitors_config;
    int mm_timer_enabled;
    uint32_t mm_time_latency;
} RedsState;

#endif