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101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
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--- ./nsswitch/winbind_nss_freebsd.c.orig 2012-10-02 08:24:41.000000000 +0000
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+++ ./nsswitch/winbind_nss_freebsd.c 2013-03-13 09:40:37.285778609 +0000
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@@ -5,6 +5,7 @@
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routines against Samba winbind/Windows NT Domain
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Copyright (C) Aaron Collins 2003
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+ Copyright (C) Timur I. Bakeyev 2013
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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@@ -53,6 +54,9 @@
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NSS_METHOD_PROTOTYPE(__nss_compat_getpwent_r);
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NSS_METHOD_PROTOTYPE(__nss_compat_setpwent);
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NSS_METHOD_PROTOTYPE(__nss_compat_endpwent);
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+NSS_METHOD_PROTOTYPE(__nss_compat_endpwent);
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+
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+NSS_METHOD_PROTOTYPE(__freebsd_getgroupmembership);
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static ns_mtab methods[] = {
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{ NSDB_GROUP, "getgrnam_r", __nss_compat_getgrnam_r, _nss_winbind_getgrnam_r },
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@@ -60,6 +64,7 @@
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{ NSDB_GROUP, "getgrent_r", __nss_compat_getgrent_r, _nss_winbind_getgrent_r },
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{ NSDB_GROUP, "setgrent", __nss_compat_setgrent, _nss_winbind_setgrent },
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{ NSDB_GROUP, "endgrent", __nss_compat_endgrent, _nss_winbind_endgrent },
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+{ NSDB_GROUP, "getgroupmembership", __freebsd_getgroupmembership, NULL },
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{ NSDB_PASSWD, "getpwnam_r", __nss_compat_getpwnam_r, _nss_winbind_getpwnam_r },
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{ NSDB_PASSWD, "getpwuid_r", __nss_compat_getpwuid_r, _nss_winbind_getpwuid_r },
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@@ -69,6 +74,71 @@
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};
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+/* Taken from libc */
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+static int
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+gr_addgid(gid_t gid, gid_t *groups, int maxgrp, int *grpcnt)
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+{
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+ int ret, dupc;
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+
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+ /* skip duplicates */
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+ for (dupc = 0; dupc < MIN(maxgrp, *grpcnt); dupc++) {
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+ if (groups[dupc] == gid)
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+ return 1;
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+ }
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+
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+ ret = 1;
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+ if (*grpcnt < maxgrp) /* add this gid */
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+ groups[*grpcnt] = gid;
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+ else
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+ ret = 0;
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+
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+ (*grpcnt)++;
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+
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+ return ret;
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+}
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+
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+/*
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+ rv = _nsdispatch(NULL, dtab, NSDB_GROUP, "getgroupmembership",
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+ defaultsrc, uname, agroup, groups, maxgrp, grpcnt);
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+*/
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+
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+int
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+__freebsd_getgroupmembership(void *retval, void *mdata, va_list ap)
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+{
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+ const char *uname = va_arg(ap, const char *);
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+ gid_t group = va_arg(ap, gid_t);
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+ gid_t *groups = va_arg(ap, gid_t *);
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+ int maxgrp = va_arg(ap, int);
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+ int *groupc = va_arg(ap, int *);
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+
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+ NSS_STATUS ret;
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+ long int lcount, lsize;
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+ int i, errnop;
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+ gid_t *tmpgroups;
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+
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+ /* Can be realloc() inside _nss_winbind_initgroups_dyn() */
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+ if ((tmpgroups=calloc(maxgrp, sizeof(gid_t))) == NULL) {
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+ errno = ENOMEM;
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+ return NS_TRYAGAIN;
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+ }
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+
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+ lcount = 0;
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+ lsize = maxgrp;
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+ /* insert primary membership(possibly already there) */
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+ gr_addgid(group, groups, maxgrp, groupc);
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+ /* Don't limit number of groups, we want to know total size */
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+ ret = _nss_winbind_initgroups_dyn(uname, group, &lcount, &lsize,
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+ &tmpgroups, 0, &errnop);
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+ if (ret == NSS_STATUS_SUCCESS) {
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+ /* lcount potentially can be bigger than maxgrp, so would groupc */
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+ for (i = 0; i < lcount; i++)
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+ gr_addgid(tmpgroups[i], groups, maxgrp, groupc);
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+ }
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+ free(tmpgroups);
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+ /* Let following nsswitch backend(s) add more groups(?) */
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+ return NSS_STATUS_NOTFOUND;
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+}
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+
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ns_mtab *
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nss_module_register(const char *source, unsigned int *mtabsize,
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nss_module_unregister_fn *unreg)
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