Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 137 insertions, 0 deletions

diff --git a/nsswitch/winbind_nss_freebsd.c b/nsswitch/winbind_nss_freebsd.c
new file mode 100644
index 0000000..d3f5489
--- /dev/null
+++ b/nsswitch/winbind_nss_freebsd.c
@@ -0,0 +1,137 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   AIX loadable authentication module, providing identification
+   routines against Samba winbind/Windows NT Domain
+
+   Copyright (C) Aaron Collins 2003
+   Copyright (C) Timur I. Bakeyev 2013
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "winbind_client.h"
+
+/* Make sure that the module gets registered needed by freebsd 5.1 */
+ns_mtab *nss_module_register(const char *, unsigned int *, nss_module_unregister_fn *);
+
+NSS_METHOD_PROTOTYPE(__nss_compat_getgrnam_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_getgrgid_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_getgrent_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_setgrent);
+NSS_METHOD_PROTOTYPE(__nss_compat_endgrent);
+
+NSS_METHOD_PROTOTYPE(__nss_compat_getpwnam_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_getpwuid_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_getpwent_r);
+NSS_METHOD_PROTOTYPE(__nss_compat_setpwent);
+NSS_METHOD_PROTOTYPE(__nss_compat_endpwent);
+NSS_METHOD_PROTOTYPE(__nss_compat_endpwent);
+
+static NSS_METHOD_PROTOTYPE(__freebsd_getgroupmembership);
+
+static ns_mtab methods[] = {
+{ NSDB_GROUP, "getgrnam_r", __nss_compat_getgrnam_r, _nss_winbind_getgrnam_r },
+{ NSDB_GROUP, "getgrgid_r", __nss_compat_getgrgid_r, _nss_winbind_getgrgid_r },
+{ NSDB_GROUP, "getgrent_r", __nss_compat_getgrent_r, _nss_winbind_getgrent_r },
+{ NSDB_GROUP, "setgrent",   __nss_compat_setgrent,   _nss_winbind_setgrent },
+{ NSDB_GROUP, "endgrent",   __nss_compat_endgrent,   _nss_winbind_endgrent },
+{ NSDB_GROUP, "getgroupmembership", __freebsd_getgroupmembership, NULL },
+
+{ NSDB_PASSWD, "getpwnam_r", __nss_compat_getpwnam_r, _nss_winbind_getpwnam_r },
+{ NSDB_PASSWD, "getpwuid_r", __nss_compat_getpwuid_r, _nss_winbind_getpwuid_r },
+{ NSDB_PASSWD, "getpwent_r", __nss_compat_getpwent_r, _nss_winbind_getpwent_r },
+{ NSDB_PASSWD, "setpwent",   __nss_compat_setpwent,   _nss_winbind_setpwent },
+{ NSDB_PASSWD, "endpwent",   __nss_compat_endpwent,   _nss_winbind_endpwent },
+
+};
+
+/* Taken from libc */
+static int
+gr_addgid(gid_t gid, gid_t *groups, int maxgrp, int *grpcnt)
+{
+	int	ret, dupc;
+
+	/* skip duplicates */
+	for (dupc = 0; dupc < MIN(maxgrp, *grpcnt); dupc++) {
+		if (groups[dupc] == gid)
+			return 1;
+	}
+
+	ret = 1;
+	if (*grpcnt < maxgrp)			/* add this gid */
+		groups[*grpcnt] = gid;
+	else
+		ret = 0;
+
+	(*grpcnt)++;
+
+	return ret;
+}
+
+/*
+    rv = _nsdispatch(NULL, dtab, NSDB_GROUP, "getgroupmembership",
+	            defaultsrc, uname, agroup, groups, maxgrp, grpcnt);
+*/
+
+static int
+__freebsd_getgroupmembership(void *retval, void *mdata, va_list ap)
+{
+	const char 	*uname  = va_arg(ap, const char *);
+	gid_t		 group  = va_arg(ap, gid_t);
+	gid_t		*groups = va_arg(ap, gid_t *);
+	int		 maxgrp = va_arg(ap, int);
+	int		*groupc = va_arg(ap, int *);
+
+	NSS_STATUS ret;
+	long int lcount, lsize;
+	int i, errnop;
+	gid_t *tmpgroups;
+
+	/* Can be realloc() inside _nss_winbind_initgroups_dyn() */
+	if ((tmpgroups=calloc(maxgrp, sizeof(gid_t))) == NULL) {
+		errno = ENOMEM;
+		return NS_TRYAGAIN;
+	}
+
+	lcount = 0;
+	lsize = maxgrp;
+	/* insert primary membership(possibly already there) */
+	gr_addgid(group, groups, maxgrp, groupc);
+	/* Don't limit number of groups, we want to know total size */
+	ret = _nss_winbind_initgroups_dyn(discard_const(uname),
+					  group,
+					  &lcount,
+					  &lsize,
+					  &tmpgroups,
+					  0,
+					  &errnop);
+	if (ret == NSS_STATUS_SUCCESS) {
+		/* lcount potentially can be bigger than maxgrp, so would groupc */
+		for (i = 0; i < lcount; i++)
+			 gr_addgid(tmpgroups[i], groups, maxgrp, groupc);
+	}
+	free(tmpgroups);
+	/* Let following nsswitch backend(s) add more groups(?) */
+	return NSS_STATUS_NOTFOUND;
+}
+
+_PUBLIC_ ns_mtab *
+nss_module_register(const char *source, unsigned int *mtabsize,
+    nss_module_unregister_fn *unreg)
+{
+        *mtabsize = sizeof(methods)/sizeof(methods[0]);
+        *unreg = NULL;
+        return (methods);
+}