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-rw-r--r--plugins/system_group/Makefile.in204
-rw-r--r--plugins/system_group/system_group.c157
-rw-r--r--plugins/system_group/system_group.exp1
3 files changed, 362 insertions, 0 deletions
diff --git a/plugins/system_group/Makefile.in b/plugins/system_group/Makefile.in
new file mode 100644
index 0000000..6fbb795
--- /dev/null
+++ b/plugins/system_group/Makefile.in
@@ -0,0 +1,204 @@
+#
+# Copyright (c) 2011-2018 Todd C. Miller <Todd.Miller@sudo.ws>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+# @configure_input@
+#
+
+#### Start of system configuration section. ####
+
+srcdir = @srcdir@
+devdir = @devdir@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+incdir = $(top_srcdir)/include
+cross_compiling = @CROSS_COMPILING@
+
+# Compiler & tools to use
+CC = @CC@
+LIBTOOL = @LIBTOOL@
+SED = @SED@
+AWK = @AWK@
+
+# Our install program supports extra flags...
+INSTALL = $(SHELL) $(top_srcdir)/install-sh -c
+INSTALL_OWNER = -o $(install_uid) -g $(install_gid)
+INSTALL_BACKUP = @INSTALL_BACKUP@
+
+# Libraries
+LT_LIBS = $(top_builddir)/lib/util/libsudo_util.la
+LIBS = $(LT_LIBS)
+
+# C preprocessor flags
+CPPFLAGS = -I$(incdir) -I$(top_builddir) -I$(top_srcdir) @CPPFLAGS@
+
+# Usually -O and/or -g
+CFLAGS = @CFLAGS@
+
+# Flags to pass to the link stage
+LDFLAGS = @LDFLAGS@
+LT_LDFLAGS = @LT_LDFLAGS@ @LT_LDEXPORTS@
+
+# Flags to pass to libtool
+LTFLAGS = --tag=disable-static
+
+# Address sanitizer flags
+ASAN_CFLAGS = @ASAN_CFLAGS@
+ASAN_LDFLAGS = @ASAN_LDFLAGS@
+
+# PIE flags
+PIE_CFLAGS = @PIE_CFLAGS@
+PIE_LDFLAGS = @PIE_LDFLAGS@
+
+# Stack smashing protection flags
+SSP_CFLAGS = @SSP_CFLAGS@
+SSP_LDFLAGS = @SSP_LDFLAGS@
+
+# cppcheck options, usually set in the top-level Makefile
+CPPCHECK_OPTS = -q --force --enable=warning,performance,portability --suppress=constStatement --error-exitcode=1 --inline-suppr -Dva_copy=va_copy -U__cplusplus -UQUAD_MAX -UQUAD_MIN -UUQUAD_MAX -U_POSIX_HOST_NAME_MAX -U_POSIX_PATH_MAX -U__NBBY -DNSIG=64
+
+# splint options, usually set in the top-level Makefile
+SPLINT_OPTS = -D__restrict= -checks
+
+# PVS-studio options
+PVS_CFG = $(top_srcdir)/PVS-Studio.cfg
+PVS_IGNORE = 'V707,V011,V002,V536'
+PVS_LOG_OPTS = -a 'GA:1,2' -e -t errorfile -d $(PVS_IGNORE)
+
+# Where to install things...
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+bindir = @bindir@
+sbindir = @sbindir@
+sysconfdir = @sysconfdir@
+libexecdir = @libexecdir@
+datarootdir = @datarootdir@
+localstatedir = @localstatedir@
+plugindir = @PLUGINDIR@
+
+# File mode and map file to use for shared libraries/objects
+shlib_enable = @SHLIB_ENABLE@
+shlib_mode = @SHLIB_MODE@
+shlib_exp = $(srcdir)/system_group.exp
+shlib_map = system_group.map
+shlib_opt = system_group.opt
+
+# User and group ids the installed files should be "owned" by
+install_uid = 0
+install_gid = 0
+
+#### End of system configuration section. ####
+
+SHELL = @SHELL@
+
+OBJS = system_group.lo
+
+IOBJS = system_group.i
+
+POBJS = system_group.plog
+
+LIBOBJDIR = $(top_builddir)/@ac_config_libobj_dir@/
+
+VERSION = @PACKAGE_VERSION@
+
+all: system_group.la
+
+Makefile: $(srcdir)/Makefile.in
+ cd $(top_builddir) && ./config.status --file plugins/system_group/Makefile
+
+.SUFFIXES: .c .h .i .lo .plog
+
+.c.lo:
+ $(LIBTOOL) $(LTFLAGS) --mode=compile $(CC) -c $(CPPFLAGS) $(CFLAGS) $(ASAN_CFLAGS) $(PIE_CFLAGS) $(SSP_CFLAGS) $<
+
+.c.i:
+ $(CC) -E -o $@ $(CPPFLAGS) $<
+
+.i.plog:
+ ifile=$<; rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $${ifile%i}c --i-file $< --output-file $@
+
+$(shlib_map): $(shlib_exp)
+ @$(AWK) 'BEGIN { print "{\n\tglobal:" } { print "\t\t"$$0";" } END { print "\tlocal:\n\t\t*;\n};" }' $(shlib_exp) > $@
+
+$(shlib_opt): $(shlib_exp)
+ @$(SED) 's/^/+e /' $(shlib_exp) > $@
+
+system_group.la: $(OBJS) $(LT_LIBS) @LT_LDDEP@
+ $(LIBTOOL) $(LTFLAGS) --mode=link $(CC) $(LDFLAGS) $(ASAN_LDFLAGS) $(SSP_LDFLAGS) $(LT_LDFLAGS) -o $@ $(OBJS) $(LIBS) -module -avoid-version -rpath $(plugindir) -shrext .so
+
+pre-install:
+
+install: install-plugin
+
+install-dirs:
+ $(SHELL) $(top_srcdir)/mkinstalldirs $(DESTDIR)$(plugindir)
+
+install-binaries:
+
+install-includes:
+
+install-doc:
+
+install-plugin: install-dirs system_group.la
+ if [ X"$(shlib_enable)" = X"yes" ]; then \
+ INSTALL_BACKUP='$(INSTALL_BACKUP)' $(LIBTOOL) $(LTFLAGS) --mode=install $(INSTALL) $(INSTALL_OWNER) -m $(shlib_mode) system_group.la $(DESTDIR)$(plugindir); \
+ fi
+
+uninstall:
+ -$(LIBTOOL) $(LTFLAGS) --mode=uninstall rm -f $(DESTDIR)$(plugindir)/system_group.la
+ -test -z "$(INSTALL_BACKUP)" || \
+ rm -f $(DESTDIR)$(plugindir)/system_group.so$(INSTALL_BACKUP)
+
+splint:
+ splint $(SPLINT_OPTS) -I$(incdir) -I$(top_builddir) -I$(top_srcdir) $(srcdir)/*.c
+
+cppcheck:
+ cppcheck $(CPPCHECK_OPTS) -I$(incdir) -I$(top_builddir) -I$(top_srcdir) $(srcdir)/*.c
+
+pvs-log-files: $(POBJS)
+
+pvs-studio: $(POBJS)
+ plog-converter $(PVS_LOG_OPTS) $(POBJS)
+
+check:
+
+clean:
+ -$(LIBTOOL) $(LTFLAGS) --mode=clean rm -f *.lo *.o *.la *.a *.i *.plog \
+ stamp-* core *.core core.*
+
+mostlyclean: clean
+
+distclean: clean
+ -rm -rf Makefile .libs $(shlib_map) $(shlib_opt)
+
+clobber: distclean
+
+realclean: distclean
+ rm -f TAGS tags
+
+cleandir: realclean
+
+# Autogenerated dependencies, do not modify
+system_group.lo: $(srcdir)/system_group.c $(incdir)/compat/stdbool.h \
+ $(incdir)/sudo_compat.h $(incdir)/sudo_dso.h \
+ $(incdir)/sudo_plugin.h $(incdir)/sudo_util.h \
+ $(top_builddir)/config.h
+ $(LIBTOOL) $(LTFLAGS) --mode=compile $(CC) -c $(CPPFLAGS) $(CFLAGS) $(ASAN_CFLAGS) $(PIE_CFLAGS) $(SSP_CFLAGS) $(srcdir)/system_group.c
+system_group.i: $(srcdir)/system_group.c $(incdir)/compat/stdbool.h \
+ $(incdir)/sudo_compat.h $(incdir)/sudo_dso.h \
+ $(incdir)/sudo_plugin.h $(incdir)/sudo_util.h \
+ $(top_builddir)/config.h
+ $(CC) -E -o $@ $(CPPFLAGS) $<
+system_group.plog: system_group.i
+ rm -f $@; pvs-studio --cfg $(PVS_CFG) --sourcetree-root $(top_srcdir) --skip-cl-exe yes --source-file $(srcdir)/system_group.c --i-file $< --output-file $@
diff --git a/plugins/system_group/system_group.c b/plugins/system_group/system_group.c
new file mode 100644
index 0000000..b34dea4
--- /dev/null
+++ b/plugins/system_group/system_group.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2010-2014 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include "compat/stdbool.h"
+#endif /* HAVE_STDBOOL_H */
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <grp.h>
+#include <pwd.h>
+
+#include "sudo_compat.h"
+#include "sudo_dso.h"
+#include "sudo_plugin.h"
+#include "sudo_util.h"
+
+/*
+ * Sudoers group plugin that does group name-based lookups using the system
+ * group database functions, similar to how sudo behaved prior to 1.7.3.
+ * This can be used on systems where lookups by group ID are problematic.
+ */
+
+static sudo_printf_t sudo_log;
+
+typedef struct group * (*sysgroup_getgrnam_t)(const char *);
+typedef struct group * (*sysgroup_getgrgid_t)(gid_t);
+typedef void (*sysgroup_gr_delref_t)(struct group *);
+
+static sysgroup_getgrnam_t sysgroup_getgrnam;
+static sysgroup_getgrgid_t sysgroup_getgrgid;
+static sysgroup_gr_delref_t sysgroup_gr_delref;
+static bool need_setent;
+
+static int
+sysgroup_init(int version, sudo_printf_t sudo_printf, char *const argv[])
+{
+ void *handle;
+
+ sudo_log = sudo_printf;
+
+ if (SUDO_API_VERSION_GET_MAJOR(version) != GROUP_API_VERSION_MAJOR) {
+ sudo_log(SUDO_CONV_ERROR_MSG,
+ "sysgroup_group: incompatible major version %d, expected %d\n",
+ SUDO_API_VERSION_GET_MAJOR(version),
+ GROUP_API_VERSION_MAJOR);
+ return -1;
+ }
+
+ /* Share group cache with sudo if possible. */
+ handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_getgrnam");
+ if (handle != NULL) {
+ sysgroup_getgrnam = (sysgroup_getgrnam_t)handle;
+ } else {
+ sysgroup_getgrnam = (sysgroup_getgrnam_t)getgrnam;
+ need_setent = true;
+ }
+
+ handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_getgrgid");
+ if (handle != NULL) {
+ sysgroup_getgrgid = (sysgroup_getgrgid_t)handle;
+ } else {
+ sysgroup_getgrgid = (sysgroup_getgrgid_t)getgrgid;
+ need_setent = true;
+ }
+
+ handle = sudo_dso_findsym(SUDO_DSO_DEFAULT, "sudo_gr_delref");
+ if (handle != NULL)
+ sysgroup_gr_delref = (sysgroup_gr_delref_t)handle;
+
+ if (need_setent)
+ setgrent();
+
+ return true;
+}
+
+static void
+sysgroup_cleanup(void)
+{
+ if (need_setent)
+ endgrent();
+}
+
+/*
+ * Returns true if "user" is a member of "group", else false.
+ */
+static int
+sysgroup_query(const char *user, const char *group, const struct passwd *pwd)
+{
+ char **member;
+ struct group *grp;
+
+ grp = sysgroup_getgrnam(group);
+ if (grp == NULL && group[0] == '#' && group[1] != '\0') {
+ const char *errstr;
+ gid_t gid = sudo_strtoid(group + 1, NULL, NULL, &errstr);
+ if (errstr == NULL)
+ grp = sysgroup_getgrgid(gid);
+ }
+ if (grp != NULL) {
+ if (grp->gr_mem != NULL) {
+ for (member = grp->gr_mem; *member != NULL; member++) {
+ if (strcasecmp(user, *member) == 0) {
+ if (sysgroup_gr_delref)
+ sysgroup_gr_delref(grp);
+ return true;
+ }
+ }
+ }
+ if (sysgroup_gr_delref)
+ sysgroup_gr_delref(grp);
+ }
+
+ return false;
+}
+
+__dso_public struct sudoers_group_plugin group_plugin = {
+ GROUP_API_VERSION,
+ sysgroup_init,
+ sysgroup_cleanup,
+ sysgroup_query
+};
diff --git a/plugins/system_group/system_group.exp b/plugins/system_group/system_group.exp
new file mode 100644
index 0000000..a859d6c
--- /dev/null
+++ b/plugins/system_group/system_group.exp
@@ -0,0 +1 @@
+group_plugin
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 05:22:39 +0000