[jail] removal by jid doesn't trigger pre/post stop scripts
This commit fixes bug: command "jail -r" didn't trigger pre/post stop commands (and others) defined in config file if jid is specified insted of name. Also it adds basic tests for usr.sbin/jail to avoid regression. Reviewed by: jamie, kevans, ray MFC after: 5 days Differential Revision: https://reviews.freebsd.org/D21328
This commit is contained in:
mizhka
parent
5abaf1af20
commit
fd4e870210
@ -1082,6 +1082,8 @@
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..
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fstyp
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..
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jail
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..
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makefs
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..
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mixer
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@ -24,4 +24,7 @@ CFLAGS+= -DINET
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CLEANFILES= y.output
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HAS_TESTS=
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SUBDIR.${MK_TESTS}+= tests
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.include <bsd.prog.mk>
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@ -44,7 +44,7 @@ static void dep_add(struct cfjail *from, struct cfjail *to, unsigned flags);
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static int cmp_jailptr(const void *a, const void *b);
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static int cmp_jailptr_name(const void *a, const void *b);
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static struct cfjail *find_jail(const char *name);
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static int running_jid(const char *name, int flags);
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static struct cfjail *running_jail(const char *name, int flags);
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static struct cfjail **jails_byname;
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static size_t njails;
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@ -72,7 +72,7 @@ dep_setup(int docf)
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if ((j = TAILQ_FIRST(&cfjails)) &&
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(p = j->intparams[IP_DEPEND])) {
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TAILQ_FOREACH(s, &p->val, tq) {
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if (running_jid(s->s, 0) < 0) {
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if (running_jail(s->s, 0) == NULL) {
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warnx("depends on nonexistent jail "
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"\"%s\"", s->s);
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j->flags |= JF_FAILED;
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@ -369,11 +369,7 @@ start_state(const char *target, int docf, unsigned state, int running)
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j = find_jail(target);
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if (j == NULL && state == JF_STOP) {
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/* Allow -[rR] to specify a currently running jail. */
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if ((jid = running_jid(target, JAIL_DYING)) > 0) {
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j = add_jail();
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j->name = estrdup(target);
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j->jid = jid;
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}
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j = running_jail(target, JAIL_DYING);
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}
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if (j == NULL) {
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warnx("\"%s\" not found", target);
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@ -446,6 +442,9 @@ static struct cfjail *
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find_jail(const char *name)
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{
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struct cfjail **jp;
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if (jails_byname == NULL)
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return NULL;
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jp = bsearch(name, jails_byname, njails, sizeof(struct cfjail *),
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cmp_jailptr_name);
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@ -453,26 +452,43 @@ find_jail(const char *name)
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}
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/*
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* Return the named jail's jid if it is running, and -1 if it isn't.
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* Return jail if it is running, and NULL if it isn't.
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*/
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static int
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running_jid(const char *name, int flags)
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static struct cfjail *
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running_jail(const char *name, int flags)
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{
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struct iovec jiov[2];
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struct iovec jiov[4];
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struct cfjail *jail;
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char *ep;
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int jid;
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char jailname[MAXHOSTNAMELEN];
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int jid, ret, len;
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if ((jid = strtol(name, &ep, 10)) && !*ep) {
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jiov[0].iov_base = __DECONST(char *, "jid");
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jiov[0].iov_len = sizeof("jid");
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jiov[1].iov_base = &jid;
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jiov[1].iov_len = sizeof(jid);
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memset(jailname,0,sizeof(jailname));
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len = sizeof(jailname);
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} else {
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jiov[0].iov_base = __DECONST(char *, "name");
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jiov[0].iov_len = sizeof("name");
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jiov[1].iov_len = strlen(name) + 1;
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jiov[1].iov_base = alloca(jiov[1].iov_len);
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strcpy(jiov[1].iov_base, name);
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strncpy(jailname, name,sizeof(jailname));
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len = strlen(name) + 1;
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jid = 0;
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}
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return jail_get(jiov, 2, flags);
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jiov[0].iov_base = __DECONST(char *, "jid");
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jiov[0].iov_len = sizeof("jid");
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jiov[1].iov_base = &jid;
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jiov[1].iov_len = sizeof(jid);
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jiov[2].iov_base = __DECONST(char *, "name");
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jiov[2].iov_len = sizeof("name");
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jiov[3].iov_base = &jailname;
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jiov[3].iov_len = len;
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if ((ret = jail_get(jiov, 4, flags)) < 0)
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return (NULL);
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if ((jail = find_jail(jailname)) == NULL) {
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jail = add_jail();
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jail->name = estrdup(jailname);
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jail->jid = ret;
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}
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return (jail);
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}
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9
usr.sbin/jail/tests/Makefile
Normal file
9
usr.sbin/jail/tests/Makefile
Normal file
@ -0,0 +1,9 @@
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# $FreeBSD$
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PACKAGE= tests
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ATF_TESTS_SH+= jail_basic_test
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${PACKAGE}FILES+= commands.jail.conf
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.include <bsd.test.mk>
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7
usr.sbin/jail/tests/commands.jail.conf
Normal file
7
usr.sbin/jail/tests/commands.jail.conf
Normal file
@ -0,0 +1,7 @@
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# $FreeBSD$
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exec.prestop = "echo STOP";
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exec.prestart = "echo START";
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persist;
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basejail {}
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136
usr.sbin/jail/tests/jail_basic_test.sh
Executable file
136
usr.sbin/jail/tests/jail_basic_test.sh
Executable file
@ -0,0 +1,136 @@
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2019 Michael Zhilin
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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# $FreeBSD$
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atf_test_case "basic" "cleanup"
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atf_test_case "nested" "cleanup"
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atf_test_case "commands" "cleanup"
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basic_head()
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{
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atf_set descr 'Basic jail test'
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atf_set require.user root
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}
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basic_body()
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{
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# Create the jail
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atf_check -s exit:0 -o ignore jail -c name=basejail persist ip4.addr=192.0.1.1
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# Check output of jls
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atf_check -s exit:0 -o ignore jls
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atf_check -s exit:0 -o ignore jls -v
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atf_check -s exit:0 -o ignore jls -n
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# Stop jail
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atf_check -s exit:0 -o ignore jail -r basejail
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jail -c name=basejail persist ip4.addr=192.0.1.1
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# Stop jail by jid
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atf_check -s exit:0 -o ignore jail -r `jls -j basejail jid`
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# Recreate
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atf_check -s exit:0 -o ignore jail -cm name=basejail persist ip4.addr=192.0.1.1
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# Restart
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atf_check -s exit:0 -o ignore jail -rc name=basejail persist ip4.addr=192.0.1.1
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}
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basic_cleanup()
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{
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jail -r basejail
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}
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nested_head()
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{
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atf_set descr 'Hierarchical jails test'
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atf_set require.user root
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}
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nested_body()
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{
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# Create the first jail
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jail -c name=basejail persist ip4.addr=192.0.1.1 children.max=1
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atf_check -s exit:0 -o empty \
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jexec basejail \
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jail -c name=nestedjail persist ip4.addr=192.0.1.1
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atf_check -s exit:1 -o empty -e inline:"jail: prison limit exceeded\n"\
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jexec basejail \
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jail -c name=secondnestedjail persist ip4.addr=192.0.1.1
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# Check output of jls
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atf_check -s exit:0 -o ignore \
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jexec basejail jls
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atf_check -s exit:0 -o ignore \
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jexec basejail jls -v
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atf_check -s exit:0 -o ignore \
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jexec basejail jls -n
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# Create jail with no child - children.max should be 0 by default
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jail -c name=basejail_nochild persist ip4.addr=192.0.1.1
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atf_check -s exit:1 -o empty \
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-e inline:"jail: jail_set: Operation not permitted\n" \
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jexec basejail_nochild \
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jail -c name=nestedjail persist ip4.addr=192.0.1.1
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}
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nested_cleanup()
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{
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jail -r nestedjail
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jail -r basejail
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jail -r basejail_nochild
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}
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commands_header()
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{
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atf_set descr 'Commands jail test'
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atf_set require.user root
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}
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commands_body()
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{
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# exec.prestart
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atf_check -s exit:0 -o inline:"START\n" \
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jail -f $(atf_get_srcdir)/commands.jail.conf -qc basejail
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# exec.prestop by jailname
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atf_check -s exit:0 -o inline:"STOP\n" \
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jail -f $(atf_get_srcdir)/commands.jail.conf -qr basejail
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# exec.prestop by jid
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jail -f $(atf_get_srcdir)/commands.jail.conf -qc basejail
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atf_check -s exit:0 -o inline:"STOP\n" \
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jail -f $(atf_get_srcdir)/commands.jail.conf -qr `jls -j basejail jid`
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}
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commands_cleanup()
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{
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jls -j basejail > /dev/null 2>&1
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if [ $? -e 0 ]
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then
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jail -r basejail
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fi
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}
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atf_init_test_cases()
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{
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atf_add_test_case "basic"
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atf_add_test_case "nested"
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atf_add_test_case "commands"
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}
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