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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/* $OpenBSD: vmd.h,v 1.43 2017/01/13 19:21:16 edd Exp $ */
/*
* Copyright (c) 2015 Mike Larkin <mlarkin@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <machine/vmmvar.h>
#include <net/if.h>
#include <limits.h>
#include <stdio.h>
#include <pthread.h>
#include "proc.h"
#ifndef VMD_H
#define VMD_H
#define VMD_USER "_vmd"
#define VMD_CONF "/etc/vm.conf"
#define SOCKET_NAME "/var/run/vmd.sock"
#define VMM_NODE "/dev/vmm"
#define VM_DEFAULT_KERNEL "/bsd"
#define VM_DEFAULT_DEVICE "hd0a"
#define VM_BOOT_CONF "/etc/boot.conf"
#define VM_NAME_MAX 64
#define VM_TTYNAME_MAX 16
#define MAX_TAP 256
#define NR_BACKLOG 5
#define VMD_SWITCH_TYPE "bridge"
#define VM_DEFAULT_MEMORY 512
#ifdef VMD_DEBUG
#define dprintf(x...) do { log_debug(x); } while(0)
#else
#define dprintf(x...)
#endif /* VMD_DEBUG */
enum imsg_type {
IMSG_VMDOP_START_VM_REQUEST = IMSG_PROC_MAX,
IMSG_VMDOP_START_VM_DISK,
IMSG_VMDOP_START_VM_IF,
IMSG_VMDOP_START_VM_END,
IMSG_VMDOP_START_VM_RESPONSE,
IMSG_VMDOP_TERMINATE_VM_REQUEST,
IMSG_VMDOP_TERMINATE_VM_RESPONSE,
IMSG_VMDOP_TERMINATE_VM_EVENT,
IMSG_VMDOP_GET_INFO_VM_REQUEST,
IMSG_VMDOP_GET_INFO_VM_DATA,
IMSG_VMDOP_GET_INFO_VM_END_DATA,
IMSG_VMDOP_LOAD,
IMSG_VMDOP_RELOAD,
IMSG_VMDOP_PRIV_IFDESCR,
IMSG_VMDOP_PRIV_IFADD,
IMSG_VMDOP_PRIV_IFCREATE,
IMSG_VMDOP_PRIV_IFUP,
IMSG_VMDOP_PRIV_IFDOWN,
IMSG_VMDOP_PRIV_IFGROUP,
IMSG_VMDOP_VM_SHUTDOWN,
IMSG_VMDOP_VM_REBOOT
};
struct vmop_result {
int vmr_result;
uint32_t vmr_id;
pid_t vmr_pid;
char vmr_ttyname[VM_TTYNAME_MAX];
};
struct vmop_info_result {
struct vm_info_result vir_info;
char vir_ttyname[VM_TTYNAME_MAX];
};
struct vmop_id {
uint32_t vid_id;
char vid_name[VMM_MAX_NAME_LEN];
};
struct vmop_ifreq {
uint32_t vfr_id;
char vfr_name[IF_NAMESIZE];
char vfr_value[VM_NAME_MAX];
};
struct vmop_create_params {
struct vm_create_params vmc_params;
unsigned int vmc_flags;
#define VMOP_CREATE_KERNEL 0x01
#define VMOP_CREATE_MEMORY 0x02
#define VMOP_CREATE_NETWORK 0x04
#define VMOP_CREATE_DISK 0x08
/* userland-only part of the create params */
unsigned int vmc_ifflags[VMM_MAX_NICS_PER_VM];
char vmc_ifnames[VMM_MAX_NICS_PER_VM][IF_NAMESIZE];
char vmc_ifswitch[VMM_MAX_NICS_PER_VM][VM_NAME_MAX];
char vmc_ifgroup[VMM_MAX_NICS_PER_VM][IF_NAMESIZE];
};
struct vmboot_params {
int vbp_fd;
off_t vbp_partoff;
char vbp_device[NAME_MAX];
char vbp_image[PATH_MAX];
uint32_t vbp_bootdev;
uint32_t vbp_howto;
char *vbp_arg;
};
struct vmd_if {
char *vif_name;
char *vif_switch;
char *vif_group;
int vif_fd;
unsigned int vif_flags;
TAILQ_ENTRY(vmd_if) vif_entry;
};
TAILQ_HEAD(viflist, vmd_if);
struct vmd_switch {
uint32_t sw_id;
char *sw_name;
char sw_ifname[IF_NAMESIZE];
char *sw_group;
unsigned int sw_flags;
struct viflist sw_ifs;
int sw_running;
TAILQ_ENTRY(vmd_switch) sw_entry;
};
TAILQ_HEAD(switchlist, vmd_switch);
struct vmd_vm {
struct vmop_create_params vm_params;
pid_t vm_pid;
/* Userspace ID of VM. The user never sees this */
uint32_t vm_vmid;
int vm_kernel;
int vm_disks[VMM_MAX_DISKS_PER_VM];
struct vmd_if vm_ifs[VMM_MAX_NICS_PER_VM];
char *vm_ttyname;
int vm_tty;
uint32_t vm_peerid;
/* When set, VM is running now (PROC_PARENT only) */
int vm_running;
/* When set, VM is not started by default (PROC_PARENT only) */
int vm_disabled;
/* When set, VM was defined in a config file */
int vm_from_config;
struct imsgev vm_iev;
int vm_shutdown;
TAILQ_ENTRY(vmd_vm) vm_entry;
};
TAILQ_HEAD(vmlist, vmd_vm);
struct vmd {
struct privsep vmd_ps;
const char *vmd_conffile;
int vmd_debug;
int vmd_verbose;
int vmd_noaction;
uint32_t vmd_nvm;
struct vmlist *vmd_vms;
uint32_t vmd_nswitches;
struct switchlist *vmd_switches;
int vmd_fd;
};
/* vmd.c */
void vmd_reload(unsigned int, const char *);
struct vmd_vm *vm_getbyvmid(uint32_t);
struct vmd_vm *vm_getbyid(uint32_t);
struct vmd_vm *vm_getbyname(const char *);
struct vmd_vm *vm_getbypid(pid_t);
void vm_stop(struct vmd_vm *, int);
void vm_remove(struct vmd_vm *);
int vm_register(struct privsep *, struct vmop_create_params *,
struct vmd_vm **, uint32_t);
void switch_remove(struct vmd_switch *);
struct vmd_switch *switch_getbyname(const char *);
char *get_string(uint8_t *, size_t);
/* priv.c */
void priv(struct privsep *, struct privsep_proc *);
int priv_getiftype(char *, char *, unsigned int *);
int priv_findname(const char *, const char **);
int priv_validgroup(const char *);
int vm_priv_ifconfig(struct privsep *, struct vmd_vm *);
int vm_priv_brconfig(struct privsep *, struct vmd_switch *);
/* vmm.c */
void vmm(struct privsep *, struct privsep_proc *);
void vmm_shutdown(void);
int write_mem(paddr_t, void *buf, size_t);
int read_mem(paddr_t, void *buf, size_t);
int opentap(char *);
int fd_hasdata(int);
void mutex_lock(pthread_mutex_t *);
void mutex_unlock(pthread_mutex_t *);
/* control.c */
int config_init(struct vmd *);
void config_purge(struct vmd *, unsigned int);
int config_setreset(struct vmd *, unsigned int);
int config_getreset(struct vmd *, struct imsg *);
int config_setvm(struct privsep *, struct vmd_vm *, uint32_t);
int config_getvm(struct privsep *, struct imsg *);
int config_getdisk(struct privsep *, struct imsg *);
int config_getif(struct privsep *, struct imsg *);
/* vmboot.c */
FILE *vmboot_open(int, int, struct vmboot_params *);
void vmboot_close(FILE *, struct vmboot_params *);
/* parse.y */
int parse_config(const char *);
int cmdline_symset(char *);
#endif /* VMD_H */
|
