In response to my own comment about trying aklog on Solaris 10 with the
built in Kerberos, I was able to get it to run. Attached are diffs
to the OpenAFS 1.4.0-rc1. Hopefully someone will find these useful, and will
cause others to ask Sun to include the krb5.h in the base distribution.
(See the note to the [EMAIL PROTECTED] asking Sun these same questions.)
To do this required using the krb5/include from http://www.opensolaris.org
to get a krb5.h the MIT krb5-1.4.1 profile.h and com_err.h.
The changes in aklog are:
o Solaris 10 does not define u_int32_t, but does have a uint32_t
o Solaris does not have 524, and aklog can be run without it, in
some situations which includes 99% of our users, so I changed the
#error to a #define, and #ifdefed out the references to the 524 code.
o Since the Solaris Kerberos does not have add_error_table, but the
MIT com_err.h defines one, I commented out the use of add_error_table
to get it to run.
o The configure was done using:
KRB5CFLAGS="-I$K5BUILD/$SYS/krb5/include"
KRB5LIBS="/usr/lib/gss/mech_krb5.so -R/usr/lib/gss"
export KRB5CFLAGS
export KRB5LIBS
./configure --enable-transarc-paths \
--with-krb5=yes \
--enable-largefile-fileserver \
--host=sparc-sun-solaris2.10
There is another subtle problem in that our AFS servers are not in the
same Kerberos realm as 99% of the users (ANL.GOV) or the cell (anl.gov).
This required the use of the aklog -c and -k options.
So this is looking promising, we will continue to use gssklog that has
no problems with using the Solaris 10 Kerberos via GSSAPI.
Douglas E. Engert wrote:
John Tang Boyland wrote:
I've been able to transition to using Kerberos V with the help
of people on this list and Ken's migration kit (thanks!). I put some
notes in the Wiki to fill in some gaps.
I notice that openafs-1.3.87 includes aklog (good!) but it seems to be
missing a PAM module that can be used with krb5. The man page
pam_afs.5 says one should use pam_krb5 instead of pam_afs but of
course, pam_krb5 doesn't get AFS tokens. Because of the way dtlogin
works on Solaris, you need to get tokens before the .profile/.cshrc is
sourced. A PAM module seems to be the right thing. There are old
notes talking about pam_aklog (on Martin Schultz's old AFS-Krb5 web
page that is only available in Google caches) including about
T. Clancy's pam_aklog with a dead URL.
(1) How do other sites handle this? Is pam_aklog passe ?
We are uisng the Solaris 10 provided pam_krb5, and Solaris provided
Kerberos which knows nothing about AFS.
We have added an additional pam_afs2 that is called after the pam_krb5
has sorted the tickets and set KRB5CCNAME in the pam_env. pam_afs2 then
fork/exec of gssklog. It could just as easily fork/exec the aklog from
1.3.87 which is on my list of thing to try. Note that pam_afs2 has
no Kerberos or AFS code, it just passes the pam_env with the KRB5CCNAME
to tha gssklog or aklog.
The above works with Solaris 10's version of SSHD, dtlogin, login, xlock
ad xscreensaver. With xlock and xscrensver the tickets and tokens are
refresehed. See attached pam.conf
Solaris 10's sshd has some problems with trying to use the default
ticket cache for a user, so we went back to using session based
credentials where each session has its own ticket cache pointed
at by KRB5CCNAME. To force the SSHD to do this, we added a
pam_krb5_ccache that calls pam_put_env to preset the KRB5CCNAME
to be used by the SSHD, thus going back to session based credentials.
(On Solaris 9 we are are using a version of Frank Cusack's pam_krb5
and pam_afs2 in some cases.)
(2) If not, how can I get it for Solaris ?
(2b) Is there some reason why it isn't integrated with
aklog in the src tree ? (or in the PAM directory.)
I believe that the pam_krb5 and pam_afs* should not be integrated,
on any system, as (I have said in the past.) Having them seperate allows
one to use the vendor's pam_krb5.
(3) Can we get some documentation/help from this from Openafs.org ?
There are many places that ancourage one to use krb5 instead
of AFS kaserver, but one's left scrounging around in unofficial
RPM's off random websites to get something to work with Solaris.
If anyone is interested, Here is one of those random sites:
ftp://achilles.ctd.anl.gov/pub/DEE/pam_afs2-0.1.tar
ftp://achilles.ctd.anl.gov/pub/DEE/gafstoken-0.3.tar
ftp://achilles.ctd.anl.gov/pup/DEE/pam_krb5_ccache-0.1.tar
ftp://achllles.ctd.anl.gov/pub/DEE/gssklog-0.11.tar
Thanks!
John
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------------------------------------------------------------------------
#
#ident "@(#)pam.conf 1.28 04/04/21 SMI"
#
# Copyright 2004 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# PAM configuration
#
# Unless explicitly defined, all services use the modules
# defined in the "other" section.
#
# Modules are defined with relative pathnames, i.e., they are
# relative to /usr/lib/security/$ISA. Absolute path names, as
# present in this file in previous releases are still acceptable.
#
# Authentication management
#
# login service (explicit because of pam_dial_auth)
#
login auth requisite pam_authtok_get.so.1
login auth required pam_dhkeys.so.1
login auth required pam_unix_cred.so.1
login auth required pam_unix_auth.so.1
login auth required pam_dial_auth.so.1
#
# rlogin service (explicit because of pam_rhost_auth)
#
rlogin auth requisite pam_authtok_get.so.1
rlogin auth required pam_dhkeys.so.1
rlogin auth required pam_unix_cred.so.1
rlogin auth required pam_unix_auth.so.1
#
# Kerberized rlogin service
#
krlogin auth required pam_unix_cred.so.1
krlogin auth binding pam_krb5.so.1
krlogin auth required /krb5/lib/pam_afs2.so.1
krlogin auth required pam_unix_auth.so.1
#
# rsh service (explicit because of pam_rhost_auth,
# and pam_unix_auth for meaningful pam_setcred)
#
rsh auth required pam_unix_cred.so.1
#
# Kerberized rsh service
#
krsh auth required pam_unix_cred.so.1
krsh auth required pam_krb5.so.1
krsh auth required /krb5/lib/pam_afs2.so.1
#krsh auth required pam_unix_auth.so.1
#
# Kerberized telnet service
#
ktelnet auth required pam_unix_cred.so.1
ktelnet auth binding pam_krb5.so.1
#DEE leave unmodified till the pam.conf and pam_afs2 are stable
#DEE leaves us a way on to machine
# But this allows password login
ktelnet auth required pam_unix_auth.so.1
#
# PPP service (explicit because of pam_dial_auth)
#
ppp auth requisite pam_authtok_get.so.1
ppp auth required pam_dhkeys.so.1
ppp auth required pam_unix_cred.so.1
ppp auth required pam_unix_auth.so.1
ppp auth required pam_dial_auth.so.1
#
# Default definitions for Authentication management
# Used when service name is not explicitly mentioned for authentication
#
other auth requisite pam_authtok_get.so.1
other auth required pam_dhkeys.so.1
other auth required pam_unix_cred.so.1
other auth required pam_unix_auth.so.1
#
# passwd command (explicit because of a different authentication module)
#
passwd auth required pam_passwd_auth.so.1
#
# cron service (explicit because of non-usage of pam_roles.so.1)
#
cron account required pam_unix_account.so.1
#
# Default definition for Account management
# Used when service name is not explicitly mentioned for account management
#
other account requisite pam_roles.so.1
other account required pam_unix_account.so.1
#
# Default definition for Session management
# Used when service name is not explicitly mentioned for session management
#
other session required pam_unix_session.so.1
#
# Default definition for Password management
# Used when service name is not explicitly mentioned for password management
#
other password required pam_dhkeys.so.1
other password requisite pam_authtok_get.so.1
other password requisite pam_authtok_check.so.1
other password required pam_authtok_store.so.1
#
# Support for Kerberos V5 authentication and example configurations can
# be found in the pam_krb5(5) man page under the "EXAMPLES" section.
#
# DEE from pam_krb5_man pages:
#DEE smartcard failed, so skip it for now
#dtlogin auth requisite pam_smartcard.so.1
dtlogin auth requisite pam_authtok_get.so.1
dtlogin auth required pam_dhkeys.so.1
dtlogin auth required pam_unix_cred.so.1
dtlogin auth optional pam_krb5.so.1
dtlogin auth required /krb5/lib/pam_afs2.so.1
# allows password login
dtlogin auth optional pam_unix_auth.so.1
#
# dtsession - lock/unlock screen, refresh creds and AFS token
#
dtsession auth requisite pam_authtok_get.so.1
dtsession auth required pam_dhkeys.so.1
dtsession auth optional pam_krb5.so.1
dtsession auth required /krb5/lib/pam_afs2.so.1 nopag
# allows unlock with local password
dtsession auth optional pam_unix_auth.so.1
#
# xlock
#
xlock auth requisite pam_authtok_get.so.1
xlock auth required pam_dhkeys.so.1
xlock auth optional pam_krb5.so.1
xlock auth required /krb5/lib/pam_afs2.so.1 nopag
# allows unlock with local password
xlock auth optional pam_unix_auth.so.1
#
# xscreensaver used by gnome or CDE
#
xscreensaver auth requisite pam_authtok_get.so.1
xscreensaver auth required pam_dhkeys.so.1
xscreensaver auth optional pam_krb5.so.1
xscreensaver auth required /krb5/lib/pam_afs2.so.1 nopag
# allows unlock with local password
xscreensaver auth optional pam_unix_auth.so.1
#
#
# sshd - keyboard interactive uses all PAM exits, but
# PAM session is called when GSSAPI delegation or
# Kerberos password used, so get AFS token in all three cases.
# We want a session type cache, so with ANL PAM
# pass in ccache= to account routine
# RedHat PAM uses session caches already
#
sshd-kbdint auth requisite pam_authtok_get.so.1
sshd-kbdint auth required pam_dhkeys.so.1
sshd-kbdint auth required pam_krb5.so.1
# allows login with local password
sshd-kbdint auth optional pam_unix_auth.so.1
sshd-kdbint account requisite pam_roles.so.1
sshd-kdbint account required pam_unix_account.so.1
sshd-kdbint account required /krb5/lib/pam_krb5_ccache.so.1 ccache=/tmp/krb5cc_pw_%u_%p
sshd-kdbint session required pam_unix_session.so.1
sshd-kdbint session required /krb5/lib/pam_afs2.so.1
# Used by GSS, but ssh has bug about saving creds, so we use session based creds.
sshd-gssapi account requisite pam_roles.so.1
sshd-gssapi account required pam_unix_account.so.1
sshd-gssapi account required /krb5/lib/pam_krb5_ccache.so.1
ccache=/tmp/krb5cc_%u_%p
sshd-gssapi session required pam_unix_session.so.1
sshd-gssapi session required /krb5/lib/pam_afs2.so.1
sshd-gssapi session required /krb5/lib/pam_krb5_ccache.so.1 clean
--
Douglas E. Engert <[EMAIL PROTECTED]>
Argonne National Laboratory
9700 South Cass Avenue
Argonne, Illinois 60439
(630) 252-5444
--- ./,aklog.h Mon Jul 11 14:07:00 2005
+++ ./aklog.h Tue Aug 23 10:50:24 2005
@@ -51,6 +51,10 @@
#define INST_SZ 40
#endif /* INST_SZ */
+#ifndef u_int32_t
+#define u_int32_t uint32_t
+#endif
+
struct ktext {
unsigned int length;
unsigned char dat[MAX_KTXT_LEN];
--- ./,aklog_main.c Mon Jul 18 21:51:53 2005
+++ ./aklog_main.c Tue Aug 23 12:44:36 2005
@@ -201,7 +201,7 @@
#if !defined(HAVE_KRB5_524_CONVERT_CREDS) &&
defined(HAVE_KRB524_CONVERT_CREDS_KDC)
#define krb5_524_convert_creds krb524_convert_creds_kdc
#elif !defined(HAVE_KRB5_524_CONVERT_CREDS) &&
!defined(HAVE_KRB524_CONVERT_CREDS_KDC)
-#error "You must have one of krb5_524_convert_creds or
krb524_convert_creds_kdc available"
+#define HAVE_NO_KRB5_524
#endif
#endif /* WINDOWS */
@@ -631,6 +631,7 @@
get_cred_keylen(v5cred));
atoken.ticketLen = v5cred->ticket.length;
memcpy(atoken.ticket, v5cred->ticket.data, atoken.ticketLen);
+#ifndef HAVE_NO_KRB5_524
} else {
CREDENTIALS cred;
@@ -665,6 +666,7 @@
memcpy(&atoken.sessionKey, cred.session, 8);
atoken.ticketLen = cred.ticket_st.length;
memcpy(atoken.ticket, cred.ticket_st.dat, atoken.ticketLen);
+#endif /* HAVE_NO_KRB5_524 */
}
if (!force &&
@@ -1187,7 +1189,11 @@
"[-d] [[-cell | -c] cell [-k krb_realm]] ",
"[[-p | -path] pathname]\n",
" [-zsubs] [-hosts] [-noauth] [-noprdb] [-force] [-setpag] \n"
- " [-linked] [-524]\n");
+ " [-linked]"
+#ifndef HAVE_NO_KRB5_524
+ " [-524]"
+#endif
+ "\n");
fprintf(stderr, " -d gives debugging information.\n");
fprintf(stderr, " krb_realm is the kerberos realm of a cell.\n");
fprintf(stderr, " pathname is the name of a directory to which ");
@@ -1199,7 +1205,9 @@
fprintf(stderr, " -force means replace identical tickets. \n");
fprintf(stderr, " -linked means if AFS node is linked, try both. \n");
fprintf(stderr, " -setpag set the AFS process authentication group.\n");
+#ifndef HAVE_NO_KRB5_524
fprintf(stderr, " -524 means use the 524 converter instead of V5
directly\n");
+#endif
fprintf(stderr, " No commandline arguments means ");
fprintf(stderr, "authenticate to the local cell.\n");
fprintf(stderr, "\n");
@@ -1272,8 +1280,10 @@
linked++;
else if (strcmp(argv[i], "-force") == 0)
force++;
+#ifndef HAVE_NO_KRB5_524
else if (strcmp(argv[i], "-524") == 0)
do524++;
+#endif
else if (strcmp(argv[i], "-setpag") == 0)
afssetpag++;
else if (((strcmp(argv[i], "-cell") == 0) ||
@@ -1527,13 +1537,13 @@
#undef error_table
#ifndef HAVE_ADD_ERROR_TABLE
-void add_error_table (const struct error_table *);
+long add_error_table (const struct error_table *);
#endif /* !HAVE_ADD_ERROR_TABLE */
void
add_to_error_table(struct et_list *new_table)
{
- add_error_table((struct error_table *) new_table->table);
+// add_error_table((struct error_table *) new_table->table);
}
#endif /* HAVE_ADD_TO_ERROR_TABLE */
