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/* $OpenBSD: hoststatectl.c,v 1.5 2006/12/16 17:52:21 deraadt 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 "hostated.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 hostatectl 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 hostated 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, HOSTATED_SOCKET, sizeof(sun.sun_path));
if (connect(ctl_sock, (struct sockaddr *)&sun, sizeof(sun)) == -1)
err(1, "connect: %s", HOSTATED_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%-16s\tstatus\n\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%-16s\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%-16s\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%-16s\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);
}
}
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