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161 Commits

Author SHA1 Message Date
Todd C. Miller
d052f8a68b Add checks for ldap/sss functions failing due to memory allocation 
errors.
 2018-05-14 09:05:05 -06:00
Todd C. Miller
904f37e03f Let the main sudoers lookup code check the host name. We still 
check the user name so it is possible to use a single userspec
but this may change in the future.
 2018-05-14 09:05:04 -06:00
Todd C. Miller
f9be3a48a2 Simplify the nss interface such that each sudoers provider fills 
in a per-nss list of userspecs and defaults instead of using separate
lookup and list functions.  This makes it possible to have a single
implementation of the code for sudoers lookup and listing.
 2018-05-14 09:05:03 -06:00
Todd C. Miller
71e98d9493 Include parse.h in sudoers.h since it will soon be required. 2018-05-14 09:05:02 -06:00
Todd C. Miller
e26ef96a65 Add case_insensitive_group and case_insensitive_user sudoers options, 
which are enabled by default.
 2018-03-05 10:42:02 -07:00
Todd C. Miller
5c36f9dec3 Initial support for adding comments that will be emitted when 
sudoers is formatted.  Currently adds a comment for the source
sudoRole when converting from ldif -> sudoers.
 2018-03-04 07:03:43 -07:00
Todd C. Miller
ceea24b965 Initial support for parsing sudoers LDIF files in cvtsudoers. 
This makes it possible to convert from LDAP sudoers to a traditional
sudoers file.  Semantic differences between file sudoers and LDAP
sudoers mean that LDIF -> sudoers is not completely equivalent.
 2018-02-22 09:53:12 -07:00
Todd C. Miller
34820c6b15 simplify iterator 2018-02-10 04:29:43 -07:00
Todd C. Miller
4459ee42ed Use an iterator instead of fragile pointer arithmetic to iterate 
over value arrays in sudo_ldap_role_to_priv().
 2018-02-09 22:06:56 -07:00
Todd C. Miller
64e99328e3 Move sudoers formatting code into fmtsudoers. 2018-02-09 18:22:04 -07:00
Todd C. Miller
2522229e86 Rename sudo_file_append_default() -> sudo_lbuf_append_default() and 
use it for ldap and sssd too.
 2018-02-09 18:22:02 -07:00
Todd C. Miller
3226f7e28b Move common bits of ldap to sudoers conversion into ldap_common.c 
and use it in sssd.c.
 2018-02-09 18:21:40 -07:00
Todd C. Miller
a885b952fb Remove use of AC_HEADER_TIME, only obsolete platforms actually 
need this.  Also stop removing sys/time.h unless the source file
uses struct timeval.
 2018-01-17 09:52:15 -07:00
Todd C. Miller
6ca8447e00 An empty RunAsUser means run as the invoking user, similar to how 
the sudoers files works.
 2017-12-12 14:20:56 -07:00
Todd C. Miller
48fba3c2cc update my email to Todd.Miller@sudo.ws 2017-12-03 17:53:40 -07:00
Todd C. Miller
93828eca65 Avoid a double free when ipa_hostname is set in sssd.conf and it 
is an unqualified host name.  From Daniel Kopecek.

Also move the "unable to allocate memory" warning into get_ipa_hostname()
itself to make it easier to see where the allocation failed in the
debug log.
 2017-11-28 11:28:44 -07:00
Todd C. Miller
88faa58735 In list (-l) or verify (-v) mode, if we have a match but authentication 
is required, clear FLAG_NOPASSWD so that when listpw/verifypw is
set to "all" and there are multiple sudoers sources a password will
be required unless none of the entries in all sources require
authentication.  From Radovan Sroka of RedHat
 2017-11-15 15:06:45 -07:00
Todd C. Miller
2cbdc26540 When checking the results for "sudo -l" and "sudo -v", keep checking 
even after we get a match since the value of doauth may depend on
evaluating all the results.  From Radovan Sroka of RedHat.
 2017-11-15 12:27:39 -07:00
Todd C. Miller
06d52c97c2 The fix for matching when no sudoRunAsUser is present in a sudoRole 
was incomplete.  If no -g option was specified on the command line
but sudoRunAsGroup is present in a sudoRole, we need to treat the
group match as failed instead of missing.
 2017-09-01 11:36:15 -06:00
Todd C. Miller
f3daaba1c4 In sudo_sss_check_user() it is not possible for handle to be NULL. 2017-04-19 14:30:30 -06:00
Todd C. Miller
583fac17ea Fix a use after free when the fqdn sudoOption is set and no hostname 
value is present in sssd.conf.
 2017-04-19 14:15:18 -06:00
Todd C. Miller
a1322d7dd9 zero out nss->handle after it has been freed to make sure we cannot free it twice 2017-03-21 09:52:51 -06:00
Todd C. Miller
b5e7b7bd2c Move the file digest code out of match.c and into filedigest.c. 
Inspired by RedHat changes that used libgcrypt.
Also add digest_type_to_name() to map a sudo digest type (int)
to a name (string) and use it.
 2017-02-20 16:44:12 -07:00
Todd C. Miller
e954facb9d List SELinux role/type for "sudo -l" with LDAP and SSSd backends. 
Also fix printing of the timeout.
 2017-02-14 15:56:34 -07:00
Todd C. Miller
d6c30ba273 Add sudo_ldap_is_negated() and sudo_ldap_is_negated() functions 
and use them to parse negated entries instead of doing it manually.
 2016-11-16 13:46:38 -07:00
Todd C. Miller
c7d6521b49 For "sudo -l" print sudoOption sudoedit_follow as FOLLOW. 2016-11-16 11:03:12 -07:00
Todd C. Miller
79ca752802 Go back to parsing Defaults entries in update_defaults instead of 
as sudoers is read.  Otherwise, we cannot properly support early
defaults like sudoers_locale.
 2016-11-09 16:00:12 -07:00
Todd C. Miller
17868f89d7 Fix a bug in host matching where a negated sudoHost entry would 
prevent other sudoHosts following it from matching.
 2016-11-08 14:35:23 -07:00
Todd C. Miller
df8404dbd4 Instead of parsing sudoers Defaults twice, parse once while reading 
sudoers and then just set the parsed value in update_defaults().
 2016-11-06 18:59:49 -07:00
Todd C. Miller
75e29f163e Add file:linenumber prefix to all Defaults warnings so we can see 
them when running sudo too.  For LDAP/SSSD we print the sudoRole
instead of the file name and omit the line number.
 2016-11-02 17:07:32 -06:00
Todd C. Miller
0a68d6799e Fix matching when no sudoRunAsUser is present in a sudoRole. 
If only a sudoRunAsGroup is present, match on the invoking user
if the -g option was specified and the group matched.
If no sudoRunAsGroup is present and the -g option was specified,
allow it if it matches the passwd gid of the runas user.
This matches the behavior of the sudoers backend.
 2016-09-19 06:19:49 -06:00
Todd C. Miller
9a55c0c25d user_matched and group_matched must be type int, not bool 2016-09-15 15:22:06 -06:00
Todd C. Miller
b165a5ff71 Use RUNAS_USER_SPECIFIED and RUNAS_GROUP_SPECIFIED when deciding 
whether to check runas user/group instead of checking runas_pw or
runas_gr.
 2016-09-15 13:47:38 -06:00
Todd C. Miller
0ff95dfaaa When matching against runas_default use userpw_matches() instead 
of just strcasecmp().
 2016-09-15 13:36:43 -06:00
Todd C. Miller
d64153967e Fix printing of the default runas user when a RunAsGroup is specified 
but no RunAsUser is present.
 2016-09-15 11:29:27 -06:00
Todd C. Miller
fb32867e4c Only match against runas_default if both sudoRunAsUser and 
sudoRunAsGroup are missing.
 2016-09-15 10:46:57 -06:00
Todd C. Miller
ef82f792a1 Update check for whether or not the runas user was set in the ldap 
and sssd backends to match the sudoers file backend.  Introduces
the runas_user_set() macro to improve readability.  Previously,
runas_pw was set late, now it is set before checking sudoers.
 2016-09-15 09:37:53 -06:00
Todd C. Miller
37099a6e7d Fix underflow in get_ipa_hostname() when trimming trailing 
whitespace.
 2016-09-15 05:54:53 -06:00
Todd C. Miller
ff753d1e16 Support negated sudoHost entries. 2016-09-14 10:33:27 -06:00
Todd C. Miller
5b51b7f11a Fix "sudo -l command" in the LDAP and SSS backends when the command 
is not allowed.
 2016-08-29 10:04:24 -06:00
Todd C. Miller
9d94ee11c0 Avoid passing around struct defaults when it is not needed. As a 
result, we no longer need to include gram.h in the LDAP and SSSD
backends.
 2016-08-08 20:09:59 -06:00
Todd C. Miller
0bf2d9b162 Instead of deferring setting early defaults until we have traversed 
the entire defaults list, just defer running the callbacks.  Otherwise,
if the last early default setting we see has a bad value we won't
set any defaults of that type even if there was an earlier one that
was valid.
 2016-08-08 17:04:20 -06:00
Todd C. Miller
16551031f9 Add support for early defaults to the ldap and sssd backends. 2016-07-27 14:20:17 -06:00
Todd C. Miller
256ca993b9 Update defaults in visudo after sudoers has been edited so we pick 
up locale changes.  The init_defaults() function will now re-init
the sudoers locale.
 2016-07-22 10:41:56 -06:00
Todd C. Miller
d9e14bc659 LDAP sudoers doesn't support negated users, groups or netgroups. 2016-06-12 09:36:19 -06:00
Todd C. Miller
3169259821 Ignore empty ipa_hostname 2016-06-05 14:42:54 -06:00
Todd C. Miller
c6a21bd53d Better martching of ipa_hostname in sssd.conf 2016-06-05 05:40:32 -06:00
Todd C. Miller
9b027676c0 Use the value of ipa_hostname from /etc/sssd/sssd.conf if present 
instead of the system hostname.
 2016-06-04 19:52:10 -06:00
Todd C. Miller
ccf88d3bb2 When matching host, short-circuit the loop when we get a match. 
Only check username as part of the netgroup when netgroup_tuple is
enabled.
 2016-06-03 14:07:40 -06:00
Todd C. Miller
a71cac91f2 Avoid using !strcmp() 2016-06-03 13:58:12 -06:00