password must necessarily have an empty pwd->pw_passwd. Also add a check
that prevents users from setting a blank password unless the nullok option
was specified. Root is still allowed to give anyone a blank password.
to maintain, and had security issues which would have required a major
rewrite to address anyway.
This implementation currently starts a separate agent for each session
instead of connecting each new session to the agent started by the first
one. While this would be a Good Thing (and the old pam_ssh(8) tried to
do it), it's hard to get right. I'll revisit this issue when I've had a
chance to test some modifications to ssh-agent(1).
pam_wheel(8) module was written to work in spite of a broken libpam, and
has grown organically since its inception, which is reflected in both its
functionality and implementation. Rather than clean up pam_wheel(8) and
break backward compatibility, I've chosen to reimplement it under a new,
more generic name.
Sponsored by: DARPA, NAI Labs
initialize the context. This way, a failure to initialize the context is
not fatal unless we actually have work to do - because if we don't, we
return PAM_SUCCESS without even trying to initialize the context.
pam_krb5 to consolidate the copyright texts. The semi-official
pam_krb5 module has been distributed with this new license text ever
since, but I'm just now getting around to updating the text here.
time_t. Deal with the possibility that time_t != int32_t. This boils
down to this sort of thing:
- time(&ut.ut_time);
+ ut.ut_time = time(NULL);
and similar for ctime(3) etc. I've kept it minimal for the stuff
that may need to be portable (or 3rd party code), but used Matt's time32
stuff for cases where that isn't as much of a concern.
Approved by: re (jhb)
PAM module state (created in pam_sm_authenticate and referenced later
in pam_sm_setcred and pam_sm_acct_mgmt). However, the krb5_ccache
structure shares some data members with the krb5_context structure
that was used in its creation. Since a new krb5_context is created
and destroyed at each PAM entry point, this inevitably caused the
krb5_ccache structure to reference free'd memory.
Now instead of storing a pointer to the krb5_ccache structure,
we store the name of the cache (e.g. `MEMORY:0x123CACHE') in
pam_sm_authenticate, and resolve the name in the other entry points.
This bug was uncovered by phkmalloc's free'd memory scrubbing.
Approved by: re (jhb)
e.g.
Unknown error: -1765328378
we get
Client not found in Kerberos database
Another way to accomplish this would have been to leave
`error_message' alone, but to explicitly load the Kerberos com_err
error tables. However, I don't really like the idea of a PAM module
dorking with global tables.
Approved by: re (jhb)
group membership requirement if the group has no explicit members listed
in /etc/group. By default, this group is the wheel group; setting this
flag restores the default BSD behavior from 4.x.
Reviewed by: markm
Requested by: various
Sponsored by: DARPA, Network Associates Laboratories
the PAM_ECHO_PASS option on-the-fly is a NOP (though it wasn't with the
old pam_get_pass(3) code). Instead, call pam_prompt(3) directly. This
actually simplifies the code a bit.
MFC after: 3 days
obscene, or - as they say in New York - sophisticated, add pam_echo(8) and
pam_exec(8) to our ever-lengthening roster of PAM modules.
Sponsored by: DARPA, NAI Labs.
Get rid of the INTERNALSTATICLIB knob and just use plain INTERNALLIB.
INTERNALLIB now means to build static library only and don't install
anything. Added a NOINSTALLLIB knob for libpam/modules. To not
build any library at all, just do not set LIB.
- add __unused where appropriate
- PAM_RETURN -> return since OpenPAM already logs the return value.
- make PAM_LOG use openpam_log()
- make PAM_VERBOSE_ERROR use openpam_get_option() and check flags
for PAM_SILENT
- remove dummy functions since OpenPAM handles missing service
functions
- fix various warnings
Sponsored by: DARPA, NAI Labs
I've looked for this example for a long time, to demonstrate
some people why it's a really BAD idea to use ${.OBJDIR}
instead of ".". I hope these people are reading this. :-)
Approved by: des
-lroken is an installable library, there's no need to give an
explicit path to it. In any case, -L paths should be specified
in LDFLAGS if needed.
Approved by: des
login_getcapstr(3). Also fix a longer-standing bug (login_close(3)
frees the string returned by login_getcapstr(3)) by reorganizing the
code a little, and use login_getpwclass(3) instead of login_getclass(3)
if we already have a struct pwd.
Sponsored by: DARPA, NAI Labs
Andrew Korty's pam_ssh. The most notable difference is that this uses
commas rather than colons to separate items in the "keyfiles" option.
Sponsored by: DARPA, NAI Labs
chpass(8). The relations between libc, libpam, chpass, passwd, and
vipw are a mess and probably should be cleaned up.
Submitted by: Peter Pentchev <roam@ringlet.net>
applications linked with Linux-PAM will still work.
Remove pam_get_pass(); OpenPAM has pam_get_authtok().
Remove pam_prompt(); OpenPAM has pam_{,v}{error,info,prompt}().
Remove pam_set_item(3) man page as OpenPAM has its own.
Sponsored by: DARPA, NAI Labs
dependencies in the correct place, record the fact that -lssh
depends on -lcrypto and -lz.
Removed false dependencies on -lz (except ssh(1) and sshd(8)).
Removed false dependencies on -lcrypto and -lutil for scp(1).
Reviewed by: markm
is an internal Linux-PAM header which shouldn't be used outside Linux-PAM
itself, and has absolutely zero effect on pam_ftp.
Sponsored by: DARPA, NAI Labs
MFC after: 1 week
it a little and try to make it more resilient to various possible failure
conditions. Change the man page accordingly, and take advantage of this
opportunity to simplify its language.
Sponsored by: DARPA, NAI Labs
doesn't really make any difference, except it matches wtmp(5) better.
Don't do anything in pam_sm_close_session(); init(8) will take care of
utmp and wtmp when the tty is released. Clearing them here would make it
possible to create a ghost session by logging in, running 'login -f $USER'
and exiting the subshell.
Sponsored by: DARPA, NAI Labs (but the bugs are all mine)
either PAM_RHOST or PAM_TTY against /etc/login.access.o
This uncovers a problem with PAM_RHOST, in that if we always set it, there
is no way to distinguish between a user logging in locally and a user
logging in using 'ssh localhost'. This will be fixed by first making sure
that all PAM modules can handle PAM_RHOST being unset (which is currently
not the case), and then modifying su(1) and login(1) to not set it for
local logins.
Sponsored by: DARPA, NAI Labs
- Spam /usr/lib some more by making libssh a standard library.
- Tweak ${LIBPAM} and ${MINUSLPAM}.
- Garbage collect unused libssh_pic.a.
- Add fake -lz dependency to secure/ makefiles needed for
dynamic linkage with -lssh.
Reviewed by: des, markm
Approved by: markm
- Ignore the {try,use}_first_pass options by clearing PAM_AUTHTOK before
challenging the user. These options are meaningless for pam_opie(8)
since the user can't possibly know the right response before she sees
the challenge.
- Introduce the no_fake_prompts option. If this option is set, pam_opie(8)
will fail - rather than present a bogus challenge - if the target user
does not have an OPIE key. With this option, users who haven't set up
OPIE won't have to wonder what that "weird otp-md5 s**t" means :)
Reviewed by: ache, markm
Sponsored by: DARPA, NAI Labs
