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1 #ifndef QEMU_NET_H
2 #define QEMU_NET_H
3 
4 #include "qemu-common.h"
5 
6 /* VLANs support */
7 
8 
9 typedef int (NetCanReceive)(VLANClientState *);
10 typedef ssize_t (NetReceive)(VLANClientState *, const uint8_t *, size_t);
11 typedef ssize_t (NetReceiveIOV)(VLANClientState *, const struct iovec *, int);
12 typedef void (NetCleanup) (VLANClientState *);
13 typedef void (LinkStatusChanged)(VLANClientState *);
14 
15 struct VLANClientState {
16     NetReceive *receive;
17     NetReceiveIOV *receive_iov;
18     /* Packets may still be sent if this returns zero.  It's used to
19        rate-limit the slirp code.  */
20     NetCanReceive *can_receive;
21     NetCleanup *cleanup;
22     LinkStatusChanged *link_status_changed;
23     int link_down;
24     void *opaque;
25     struct VLANClientState *next;
26     struct VLANState *vlan;
27     char *model;
28     char *name;
29     char info_str[256];
30 };
31 
32 typedef struct VLANPacket VLANPacket;
33 
34 typedef void (NetPacketSent) (VLANClientState *);
35 
36 struct VLANPacket {
37     struct VLANPacket *next;
38     VLANClientState *sender;
39     int size;
40     NetPacketSent *sent_cb;
41     uint8_t data[0];
42 };
43 
44 struct VLANState {
45     int id;
46     VLANClientState *first_client;
47     struct VLANState *next;
48     unsigned int nb_guest_devs, nb_host_devs;
49     VLANPacket *send_queue;
50     int delivering;
51 };
52 
53 VLANState *qemu_find_vlan(int id);
54 VLANClientState *qemu_new_vlan_client(VLANState *vlan,
55                                       const char *model,
56                                       const char *name,
57                                       NetCanReceive *can_receive,
58                                       NetReceive *receive,
59                                       NetReceiveIOV *receive_iov,
60                                       NetCleanup *cleanup,
61                                       void *opaque);
62 void qemu_del_vlan_client(VLANClientState *vc);
63 VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque);
64 int qemu_can_send_packet(VLANClientState *vc);
65 ssize_t qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov,
66                           int iovcnt);
67 ssize_t qemu_sendv_packet_async(VLANClientState *vc, const struct iovec *iov,
68                                 int iovcnt, NetPacketSent *sent_cb);
69 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size);
70 ssize_t qemu_send_packet_async(VLANClientState *vc, const uint8_t *buf,
71                                int size, NetPacketSent *sent_cb);
72 void qemu_flush_queued_packets(VLANClientState *vc);
73 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6]);
74 void qemu_check_nic_model(NICInfo *nd, const char *model);
75 void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
76                                const char *default_model);
77 void qemu_handler_true(void *opaque);
78 
79 void do_info_network(Monitor *mon);
80 int do_set_link(Monitor *mon, const char *name, const char *up_or_down);
81 
82 /* NIC info */
83 
84 #define MAX_NICS 8
85 
86 struct NICInfo {
87     uint8_t macaddr[6];
88     const char *model;
89     const char *name;
90     VLANState *vlan;
91     void *private;
92     int used;
93 };
94 
95 extern int nb_nics;
96 extern NICInfo nd_table[MAX_NICS];
97 
98 /* BT HCI info */
99 
100 struct HCIInfo {
101     int (*bdaddr_set)(struct HCIInfo *hci, const uint8_t *bd_addr);
102     void (*cmd_send)(struct HCIInfo *hci, const uint8_t *data, int len);
103     void (*sco_send)(struct HCIInfo *hci, const uint8_t *data, int len);
104     void (*acl_send)(struct HCIInfo *hci, const uint8_t *data, int len);
105     void *opaque;
106     void (*evt_recv)(void *opaque, const uint8_t *data, int len);
107     void (*acl_recv)(void *opaque, const uint8_t *data, int len);
108 };
109 
110 struct HCIInfo *qemu_next_hci(void);
111 
112 /* checksumming functions (net-checksum.c) */
113 uint32_t net_checksum_add(int len, uint8_t *buf);
114 uint16_t net_checksum_finish(uint32_t sum);
115 uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
116                              uint8_t *addrs, uint8_t *buf);
117 void net_checksum_calculate(uint8_t *data, int length);
118 
119 /* from net.c */
120 int net_client_init(Monitor *mon, const char *device, const char *p);
121 void net_client_uninit(NICInfo *nd);
122 int net_client_parse(const char *str);
123 void net_slirp_smb(const char *exported_dir);
124 void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2);
125 void net_cleanup(void);
126 int slirp_is_inited(void);
127 void net_client_check(void);
128 void net_host_device_add(Monitor *mon, const char *device, const char *opts);
129 void net_host_device_remove(Monitor *mon, int vlan_id, const char *device);
130 
131 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
132 #define DEFAULT_NETWORK_DOWN_SCRIPT "/etc/qemu-ifdown"
133 #ifdef __sun__
134 #define SMBD_COMMAND "/usr/sfw/sbin/smbd"
135 #else
136 #define SMBD_COMMAND "/usr/sbin/smbd"
137 #endif
138 
139 void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr);
140 VLANClientState *qdev_get_vlan_client(DeviceState *dev,
141                                       NetCanReceive *can_receive,
142                                       NetReceive *receive,
143                                       NetReceiveIOV *receive_iov,
144                                       NetCleanup *cleanup,
145                                       void *opaque);
146 
147 #endif
148