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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
|
/* $OpenBSD: hoststatectl.c,v 1.8 2007/01/09 13:50:10 pyr Exp $ */
/*
* Copyright (c) 2006 Pierre-Yves Ritschard <pyr@spootnik.org>
* Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org>
* Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
* Copyright (c) 2003 Henning Brauer <henning@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/socket.h>
#include <sys/queue.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <event.h>
#include "hoststated.h"
#include "parser.h"
__dead void usage(void);
int show_summary_msg(struct imsg *);
int show_command_output(struct imsg *);
char *print_service_status(int);
char *print_host_status(int, int);
char *print_table_status(int, int);
struct imsgbuf *ibuf;
__dead void
usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s <command> [arg [...]]\n", __progname);
exit(1);
}
/* dummy function so that hoststatectl does not need libevent */
void
imsg_event_add(struct imsgbuf *i)
{
/* nothing */
}
int
main(int argc, char *argv[])
{
struct sockaddr_un sun;
struct parse_result *res;
struct imsg imsg;
int ctl_sock;
int done = 0;
int n;
/* parse options */
if ((res = parse(argc - 1, argv + 1)) == NULL)
exit(1);
/* connect to hoststated control socket */
if ((ctl_sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
err(1, "socket");
bzero(&sun, sizeof(sun));
sun.sun_family = AF_UNIX;
strlcpy(sun.sun_path, HOSTSTATED_SOCKET, sizeof(sun.sun_path));
if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1)
err(1, "connect: %s", HOSTSTATED_SOCKET);
if ((ibuf = malloc(sizeof(struct imsgbuf))) == NULL)
err(1, NULL);
imsg_init(ibuf, ctl_sock, NULL);
done = 0;
/* process user request */
switch (res->action) {
case NONE:
usage();
/* not reached */
case SHOW_SUM:
imsg_compose(ibuf, IMSG_CTL_SHOW_SUM, 0, 0, NULL, 0);
printf("Type\t%4s\t%-24s\tStatus\n", "Id", "Name");
break;
case SERV_ENABLE:
imsg_compose(ibuf, IMSG_CTL_SERVICE_ENABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case SERV_DISABLE:
imsg_compose(ibuf, IMSG_CTL_SERVICE_DISABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case TABLE_ENABLE:
imsg_compose(ibuf, IMSG_CTL_TABLE_ENABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case TABLE_DISABLE:
imsg_compose(ibuf, IMSG_CTL_TABLE_DISABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case HOST_ENABLE:
imsg_compose(ibuf, IMSG_CTL_HOST_ENABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case HOST_DISABLE:
imsg_compose(ibuf, IMSG_CTL_HOST_DISABLE, 0, 0,
&res->id, sizeof(res->id));
break;
case SHUTDOWN:
imsg_compose(ibuf, IMSG_CTL_SHUTDOWN, 0, 0, NULL, 0);
break;
case RELOAD:
imsg_compose(ibuf, IMSG_CTL_RELOAD, 0, 0, NULL, 0);
break;
}
while (ibuf->w.queued)
if (msgbuf_write(&ibuf->w) < 0)
err(1, "write error");
while (!done) {
if ((n = imsg_read(ibuf)) == -1)
errx(1, "imsg_read error");
if (n == 0)
errx(1, "pipe closed");
while (!done) {
if ((n = imsg_get(ibuf, &imsg)) == -1)
errx(1, "imsg_get error");
if (n == 0)
break;
switch (res->action) {
case SHOW_SUM:
done = show_summary_msg(&imsg);
break;
case SERV_DISABLE:
case SERV_ENABLE:
case TABLE_DISABLE:
case TABLE_ENABLE:
case HOST_DISABLE:
case HOST_ENABLE:
done = show_command_output(&imsg);
break;
case RELOAD:
case SHUTDOWN:
case NONE:
break;
}
imsg_free(&imsg);
}
}
close(ctl_sock);
free(ibuf);
return (0);
}
int
show_summary_msg(struct imsg *imsg)
{
struct service *service;
struct table *table;
struct host *host;
switch (imsg->hdr.type) {
case IMSG_CTL_SERVICE:
service = imsg->data;
printf("service\t%4u\t%-24s\t%s\n",
service->id, service->name,
print_service_status(service->flags));
break;
case IMSG_CTL_TABLE:
table = imsg->data;
printf("table\t%4u\t%-24s\t%s",
table->id, table->name,
print_table_status(table->up, table->flags));
printf("\n");
break;
case IMSG_CTL_HOST:
host = imsg->data;
printf("host\t%4u\t%-24s\t%s\n",
host->id, host->name,
print_host_status(host->up, host->flags));
break;
case IMSG_CTL_END:
return (1);
default:
errx(1, "wrong message in summary: %u", imsg->hdr.type);
break;
}
return (0);
}
int
show_command_output(struct imsg *imsg)
{
switch (imsg->hdr.type) {
case IMSG_CTL_OK:
printf("command succeeded\n");
break;
case IMSG_CTL_FAIL:
printf("command failed\n");
break;
default:
errx(1, "wrong message in summary: %u", imsg->hdr.type);
}
return (1);
}
char *
print_service_status(int flags)
{
if (flags & F_DISABLE) {
return ("disabled");
} else if (flags & F_DOWN) {
return ("down");
} else if (flags & F_BACKUP) {
return ("active (using backup table)");
} else
return ("active");
}
char *
print_table_status(int up, int fl)
{
static char buf[1024];
bzero(buf, sizeof(buf));
if (fl & F_DISABLE) {
snprintf(buf, sizeof(buf) - 1, "disabled");
} else if (!up) {
snprintf(buf, sizeof(buf) - 1, "empty");
} else
snprintf(buf, sizeof(buf) - 1, "active (%d hosts up)", up);
return (buf);
}
char *
print_host_status(int status, int fl)
{
if (fl & F_DISABLE)
return ("disabled");
switch (status) {
case HOST_DOWN:
return ("down");
case HOST_UNKNOWN:
return ("unknown");
case HOST_UP:
return ("up");
default:
errx(1, "invalid status: %d", status);
}
}
|
