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73c1b04306d5291abde9857b51e6aaee936e57c4
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133 Commits

Author SHA1 Message Date
Todd C. Miller
73c1b04306 When converting LDAP to sudoers, ignore entries with no sudoHost attribute. 
Otherwise, sudo_ldap_role_to_priv() will treat a NULL host list as
as the "ALL" wildcard.  This regression was introduced in sudo 1.8.23,
which was the first version to convert LDAP sudoRole objects to
sudoers internal data structures.
Thanks to Andreas Mueller for reporting and debugging this problem.
 2020-06-03 20:12:04 -06:00
Todd C. Miller
446ae3f507 Include string.h unconditionally and only use strings.h for strn?casecmp() 
In the pre-POSIX days BSD had strings.h, not string.h.
Now strings.h is only used for non-ANSI string functions.
 2020-05-18 07:59:24 -06:00
Todd C. Miller
dd88460800 We no longer need to include headers we don't use for sudo*.h files. 
Previously we needed to include headers required by the various
sudo*h files.  Now those files are more self-sufficient and we
should only include headers needed by code in the various .c files.
 2020-05-18 06:47:04 -06:00
Todd C. Miller
486ee2b71f debug_decl and debug_decl_vars now require a semicolon at the end. 2019-12-22 08:48:16 -07:00
Todd C. Miller
c3ce3a84fb Refer to user-ID and group-ID instead of "user ID" and "group ID" 2019-10-19 14:26:41 -06:00
Todd C. Miller
e99082e05b Fix special handling of ipa_hostname that was lost in sudo 1.8.24. 
We now include the long and short hostname in sudo parser container.
 2019-08-15 14:20:12 -06:00
Todd C. Miller
1e1ef61902 Add SPDX-License-Identifier to files. 2019-04-29 07:21:51 -06:00
Todd C. Miller
de65d70929 Add a proper getdelim(3) replacement and use it instead of getline(3). 2019-04-08 10:37:30 -06:00
Todd C. Miller
6c3d20cb41 Convert PVS-Studio comment to ANSI C. 2018-10-26 08:39:09 -06:00
Todd C. Miller
64e5d34c57 Add comments in .c files so PVS-Studio will check them. 2018-10-21 08:46:05 -06:00
Todd C. Miller
ae04b40c05 The sssd backend used to take the first match, assuming that entries 
were sorted in descending order by sudoOrder.  That allowed it to
avoid iterating over the entire list of rules.  Now that we convert
to a sudoers parse tree, we need to convert rules in ascending
order, not descending.  The simplest way to accomplish this is to
simply iterate over the rules from last to first, reversing the
sort order.  Bug #849
 2018-08-30 08:36:09 -06:00
Todd C. Miller
1e5af35564 Refactor code to convert defaults to tags and do conversion on 
output for "sudo -l".

Remove the short_list (was long_list) global in favor of a verbose
argument.
 2018-08-05 07:17:34 -06:00
Todd C. Miller
608574a219 For ldap/sssd, include defaults in the generate privilege unless 
we are listing in short mode (in which case we convert them to tags
if possible).  Fixes a problem where sudoOptions were not being
applied to the command.
 2018-08-02 14:45:00 -06:00
Todd C. Miller
70d519c8ad o Move userspecs, defaults and aliases into a new struct sudoers_parse_tree. 
o The parse tree is now passed to the alias, match and defaults functions.
o The nss API has been changed so that the nss parse() function returns
  a pointer to a struct sudoers_parse_tree which will be filled in
  by the getdefs() and query() functions.
 2018-07-26 15:12:33 -06:00
Todd C. Miller
919b567229 The getdefs() function now get called multiple times so use the 
cached data if present.
 2018-05-29 10:53:47 -06:00
Todd C. Miller
899aedfd10 Return an empty defaults list, not NULL if there is no global sudoers 
defaults entry in sss.
 2018-05-29 10:24:57 -06:00
Todd C. Miller
c990d93a4e Remove a needless copy when parsing options. 2018-05-29 09:39:42 -06:00
Todd C. Miller
0b31f186cd Move cached userspecs and defaults into the handle object. 2018-05-29 09:39:40 -06:00
Todd C. Miller
e401f92830 Reorder things to avoid the need to declare static functions. 2018-05-28 07:35:51 -06:00
Todd C. Miller
c30ad97107 Set handle->pw before sss_to_sudoers() since sss_check_user() 
uses it.  Coverity CID 185651
 2018-05-16 10:48:50 -06:00
Todd C. Miller
f38317269d Add free_userspecs() and free_default() and use them instead of 
looping over the lists and calling free_userspec() and free_default().
 2018-05-15 16:35:07 -06:00
Todd C. Miller
9f36ae62f0 Improve comments about why we need to do a user check and how it 
related to netgroups.
 2018-05-14 10:43:51 -06:00
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