1f34f30fb5
reasonable close to and in the same format as it had always. r185435 said it would try that but I had been living with jail patches for too long to actually remember the single-line format when adding backwards compatibility back in p4. Reported by: Philipp Wuensche <cryx-freebsd@h3q.com> Tested by: Philipp Wuensche <cryx-freebsd@h3q.com> MFC after: 4 weeks (just for me to get the mail)
258 lines
6.6 KiB
C
258 lines
6.6 KiB
C
/*-
|
|
* Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
|
|
* Copyright (c) 2008 Bjoern A. Zeeb <bz@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/jail.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#define FLAG_A 0x00001
|
|
#define FLAG_V 0x00002
|
|
|
|
#ifdef SUPPORT_OLD_XPRISON
|
|
static
|
|
char *print_xprison_v1(void *p, char *end, unsigned flags)
|
|
{
|
|
struct xprison_v1 *xp;
|
|
struct in_addr in;
|
|
|
|
if ((char *)p + sizeof(struct xprison_v1) > end)
|
|
errx(1, "Invalid length for jail");
|
|
|
|
xp = (struct xprison_v1 *)p;
|
|
if (flags & FLAG_V) {
|
|
printf("%6d %-29.29s %.74s\n",
|
|
xp->pr_id, xp->pr_host, xp->pr_path);
|
|
/* We are not printing an empty line here for state and name. */
|
|
/* We are not printing an empty line here for cpusetid. */
|
|
/* IPv4 address. */
|
|
in.s_addr = htonl(xp->pr_ip);
|
|
printf("%6s %-15.15s\n", "", inet_ntoa(in));
|
|
} else {
|
|
printf("%6d %-15.15s %-29.29s %.74s\n",
|
|
xp->pr_id, inet_ntoa(in), xp->pr_host, xp->pr_path);
|
|
}
|
|
|
|
return ((char *)(xp + 1));
|
|
}
|
|
#endif
|
|
|
|
static
|
|
char *print_xprison_v3(void *p, char *end, unsigned flags)
|
|
{
|
|
struct xprison *xp;
|
|
struct in_addr *iap, in;
|
|
struct in6_addr *ia6p;
|
|
char buf[INET6_ADDRSTRLEN];
|
|
const char *state;
|
|
char *q;
|
|
uint32_t i;
|
|
|
|
if ((char *)p + sizeof(struct xprison) > end)
|
|
errx(1, "Invalid length for jail");
|
|
xp = (struct xprison *)p;
|
|
|
|
if (xp->pr_state < 0 || xp->pr_state >= (int)
|
|
((sizeof(prison_states) / sizeof(struct prison_state))))
|
|
state = "(bogus)";
|
|
else
|
|
state = prison_states[xp->pr_state].state_name;
|
|
|
|
/* See if we should print non-ACTIVE jails. No? */
|
|
if ((flags & FLAG_A) == 0 && strcmp(state, "ALIVE")) {
|
|
q = (char *)(xp + 1);
|
|
q += (xp->pr_ip4s * sizeof(struct in_addr));
|
|
if (q > end)
|
|
errx(1, "Invalid length for jail");
|
|
q += (xp->pr_ip6s * sizeof(struct in6_addr));
|
|
if (q > end)
|
|
errx(1, "Invalid length for jail");
|
|
return (q);
|
|
}
|
|
|
|
if (flags & FLAG_V)
|
|
printf("%6d %-29.29s %.74s\n",
|
|
xp->pr_id, xp->pr_host, xp->pr_path);
|
|
|
|
/* Jail state and name. */
|
|
if (flags & FLAG_V)
|
|
printf("%6s %-29.29s %.74s\n",
|
|
"", (xp->pr_name[0] != '\0') ? xp->pr_name : "", state);
|
|
|
|
/* cpusetid. */
|
|
if (flags & FLAG_V)
|
|
printf("%6s %-6d\n",
|
|
"", xp->pr_cpusetid);
|
|
|
|
q = (char *)(xp + 1);
|
|
/* IPv4 addresses. */
|
|
iap = (struct in_addr *)(void *)q;
|
|
q += (xp->pr_ip4s * sizeof(struct in_addr));
|
|
if (q > end)
|
|
errx(1, "Invalid length for jail");
|
|
in.s_addr = 0;
|
|
for (i = 0; i < xp->pr_ip4s; i++) {
|
|
if (i == 0 || flags & FLAG_V)
|
|
in.s_addr = iap[i].s_addr;
|
|
if (flags & FLAG_V)
|
|
printf("%6s %-15.15s\n", "", inet_ntoa(in));
|
|
}
|
|
/* IPv6 addresses. */
|
|
ia6p = (struct in6_addr *)(void *)q;
|
|
q += (xp->pr_ip6s * sizeof(struct in6_addr));
|
|
if (q > end)
|
|
errx(1, "Invalid length for jail");
|
|
for (i = 0; i < xp->pr_ip6s; i++) {
|
|
if (flags & FLAG_V) {
|
|
inet_ntop(AF_INET6, &ia6p[i], buf, sizeof(buf));
|
|
printf("%6s %s\n", "", buf);
|
|
}
|
|
}
|
|
|
|
/* If requested print the old style single line version. */
|
|
if (!(flags & FLAG_V))
|
|
printf("%6d %-15.15s %-29.29s %.74s\n",
|
|
xp->pr_id, (in.s_addr) ? inet_ntoa(in) : "",
|
|
xp->pr_host, xp->pr_path);
|
|
|
|
return (q);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
(void)fprintf(stderr, "usage: jls [-av]\n");
|
|
exit(1);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int ch, version;
|
|
unsigned flags;
|
|
size_t i, j, len;
|
|
void *p, *q;
|
|
|
|
flags = 0;
|
|
while ((ch = getopt(argc, argv, "av")) != -1) {
|
|
switch (ch) {
|
|
case 'a':
|
|
flags |= FLAG_A;
|
|
break;
|
|
case 'v':
|
|
flags |= FLAG_V;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (sysctlbyname("security.jail.list", NULL, &len, NULL, 0) == -1)
|
|
err(1, "sysctlbyname(): security.jail.list");
|
|
|
|
j = len;
|
|
for (i = 0; i < 4; i++) {
|
|
if (len <= 0)
|
|
exit(0);
|
|
p = q = malloc(len);
|
|
if (p == NULL)
|
|
err(1, "malloc()");
|
|
|
|
if (sysctlbyname("security.jail.list", q, &len, NULL, 0) == -1) {
|
|
if (errno == ENOMEM) {
|
|
free(p);
|
|
p = NULL;
|
|
len += j;
|
|
continue;
|
|
}
|
|
err(1, "sysctlbyname(): security.jail.list");
|
|
}
|
|
break;
|
|
}
|
|
if (p == NULL)
|
|
err(1, "sysctlbyname(): security.jail.list");
|
|
if (len < sizeof(int))
|
|
errx(1, "This is no prison. Kernel and userland out of sync?");
|
|
version = *(int *)p;
|
|
if (version > XPRISON_VERSION)
|
|
errx(1, "Sci-Fi prison. Kernel/userland out of sync?");
|
|
|
|
if (flags & FLAG_V) {
|
|
printf(" JID Hostname Path\n");
|
|
printf(" Name State\n");
|
|
printf(" CPUSetID\n");
|
|
printf(" IP Address(es)\n");
|
|
} else {
|
|
printf(" JID IP Address Hostname"
|
|
" Path\n");
|
|
}
|
|
for (; q != NULL && (char *)q + sizeof(int) < (char *)p + len;) {
|
|
version = *(int *)q;
|
|
if (version > XPRISON_VERSION)
|
|
errx(1, "Sci-Fi prison. Kernel/userland out of sync?");
|
|
switch (version) {
|
|
#ifdef SUPPORT_OLD_XPRISON
|
|
case 1:
|
|
q = print_xprison_v1(q, (char *)p + len, flags);
|
|
break;
|
|
case 2:
|
|
errx(1, "Version 2 was used by multi-IPv4 jail "
|
|
"implementations that never made it into the "
|
|
"official kernel.");
|
|
/* NOTREACHED */
|
|
break;
|
|
#endif
|
|
case 3:
|
|
q = print_xprison_v3(q, (char *)p + len, flags);
|
|
break;
|
|
default:
|
|
errx(1, "Prison unknown. Kernel/userland out of sync?");
|
|
/* NOTREACHED */
|
|
break;
|
|
}
|
|
}
|
|
|
|
free(p);
|
|
exit(0);
|
|
}
|