mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-11-24 19:53:24 +08:00
b0fb6872ed
[atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c]
[auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c]
[auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c]
[auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c]
[auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c]
[canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.c]
[cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
[compress.c deattack.c dh.c dispatch.c dns.c entropy.c fatal.c]
[groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c]
[kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c]
[loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c]
[monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c]
[nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c]
[scard.c scp.c servconf.c serverloop.c session.c sftp-client.c]
[sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c]
[ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
[ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
[sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
[uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c]
[openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c]
[openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c]
[openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c]
[openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c]
RCSID() can die
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2001 Kevin Steves. 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 ``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 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.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#include "groupaccess.h"
|
|
#include "xmalloc.h"
|
|
#include "match.h"
|
|
#include "log.h"
|
|
|
|
static int ngroups;
|
|
static char **groups_byname;
|
|
|
|
/*
|
|
* Initialize group access list for user with primary (base) and
|
|
* supplementary groups. Return the number of groups in the list.
|
|
*/
|
|
int
|
|
ga_init(const char *user, gid_t base)
|
|
{
|
|
gid_t *groups_bygid;
|
|
int i, j;
|
|
struct group *gr;
|
|
|
|
if (ngroups > 0)
|
|
ga_free();
|
|
|
|
ngroups = NGROUPS_MAX;
|
|
#if defined(HAVE_SYSCONF) && defined(_SC_NGROUPS_MAX)
|
|
ngroups = MAX(NGROUPS_MAX, sysconf(_SC_NGROUPS_MAX));
|
|
#endif
|
|
|
|
groups_bygid = xmalloc(ngroups * sizeof(*groups_bygid));
|
|
groups_byname = xmalloc(ngroups * sizeof(*groups_byname));
|
|
|
|
if (getgrouplist(user, base, groups_bygid, &ngroups) == -1)
|
|
logit("getgrouplist: groups list too small");
|
|
for (i = 0, j = 0; i < ngroups; i++)
|
|
if ((gr = getgrgid(groups_bygid[i])) != NULL)
|
|
groups_byname[j++] = xstrdup(gr->gr_name);
|
|
xfree(groups_bygid);
|
|
return (ngroups = j);
|
|
}
|
|
|
|
/*
|
|
* Return 1 if one of user's groups is contained in groups.
|
|
* Return 0 otherwise. Use match_pattern() for string comparison.
|
|
*/
|
|
int
|
|
ga_match(char * const *groups, int n)
|
|
{
|
|
int i, j;
|
|
|
|
for (i = 0; i < ngroups; i++)
|
|
for (j = 0; j < n; j++)
|
|
if (match_pattern(groups_byname[i], groups[j]))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Free memory allocated for group access list.
|
|
*/
|
|
void
|
|
ga_free(void)
|
|
{
|
|
int i;
|
|
|
|
if (ngroups > 0) {
|
|
for (i = 0; i < ngroups; i++)
|
|
xfree(groups_byname[i]);
|
|
ngroups = 0;
|
|
xfree(groups_byname);
|
|
}
|
|
}
|