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-rw-r--r--libcli/security/config.mk5
-rw-r--r--libcli/security/dom_sid.c312
-rw-r--r--libcli/security/dom_sid.h42
3 files changed, 359 insertions, 0 deletions
diff --git a/libcli/security/config.mk b/libcli/security/config.mk
new file mode 100644
index 0000000000..56d8e138ff
--- /dev/null
+++ b/libcli/security/config.mk
@@ -0,0 +1,5 @@
+[SUBSYSTEM::LIBSECURITY_COMMON]
+PRIVATE_DEPENDENCIES = TALLOC
+
+LIBSECURITY_COMMON_OBJ_FILES = $(addprefix $(libclicommonsrcdir)/security/, \
+ dom_sid.o)
diff --git a/libcli/security/dom_sid.c b/libcli/security/dom_sid.c
new file mode 100644
index 0000000000..f41ea677fc
--- /dev/null
+++ b/libcli/security/dom_sid.c
@@ -0,0 +1,312 @@
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+
+ Copyright (C) Stefan (metze) Metzmacher 2002-2004
+ Copyright (C) Andrew Tridgell 1992-2004
+ Copyright (C) Jeremy Allison 1999
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "librpc/gen_ndr/security.h"
+#include "libcli/security/security.h"
+
+/*****************************************************************
+ Compare the auth portion of two sids.
+*****************************************************************/
+
+static int dom_sid_compare_auth(const struct dom_sid *sid1,
+ const struct dom_sid *sid2)
+{
+ int i;
+
+ if (sid1 == sid2)
+ return 0;
+ if (!sid1)
+ return -1;
+ if (!sid2)
+ return 1;
+
+ if (sid1->sid_rev_num != sid2->sid_rev_num)
+ return sid1->sid_rev_num - sid2->sid_rev_num;
+
+ for (i = 0; i < 6; i++)
+ if (sid1->id_auth[i] != sid2->id_auth[i])
+ return sid1->id_auth[i] - sid2->id_auth[i];
+
+ return 0;
+}
+
+/*****************************************************************
+ Compare two sids.
+*****************************************************************/
+
+int dom_sid_compare(const struct dom_sid *sid1, const struct dom_sid *sid2)
+{
+ int i;
+
+ if (sid1 == sid2)
+ return 0;
+ if (!sid1)
+ return -1;
+ if (!sid2)
+ return 1;
+
+ /* Compare most likely different rids, first: i.e start at end */
+ if (sid1->num_auths != sid2->num_auths)
+ return sid1->num_auths - sid2->num_auths;
+
+ for (i = sid1->num_auths-1; i >= 0; --i)
+ if (sid1->sub_auths[i] != sid2->sub_auths[i])
+ return sid1->sub_auths[i] - sid2->sub_auths[i];
+
+ return dom_sid_compare_auth(sid1, sid2);
+}
+
+/*****************************************************************
+ Compare two sids.
+*****************************************************************/
+
+bool dom_sid_equal(const struct dom_sid *sid1, const struct dom_sid *sid2)
+{
+ return dom_sid_compare(sid1, sid2) == 0;
+}
+
+/* Yes, I did think about multibyte issues here, and for all I can see there's
+ * none of those for parsing a SID. */
+#undef strncasecmp
+
+bool dom_sid_parse(const char *sidstr, struct dom_sid *ret)
+{
+ uint_t rev, ia, num_sub_auths, i;
+ char *p;
+
+ if (strncasecmp(sidstr, "S-", 2)) {
+ return false;
+ }
+
+ sidstr += 2;
+
+ rev = strtol(sidstr, &p, 10);
+ if (*p != '-') {
+ return false;
+ }
+ sidstr = p+1;
+
+ ia = strtol(sidstr, &p, 10);
+ if (p == sidstr) {
+ return false;
+ }
+ sidstr = p;
+
+ num_sub_auths = 0;
+ for (i=0;sidstr[i];i++) {
+ if (sidstr[i] == '-') num_sub_auths++;
+ }
+
+ ret->sid_rev_num = rev;
+ ret->id_auth[0] = 0;
+ ret->id_auth[1] = 0;
+ ret->id_auth[2] = ia >> 24;
+ ret->id_auth[3] = ia >> 16;
+ ret->id_auth[4] = ia >> 8;
+ ret->id_auth[5] = ia;
+ ret->num_auths = num_sub_auths;
+
+ for (i=0;i<num_sub_auths;i++) {
+ if (sidstr[0] != '-') {
+ return false;
+ }
+ sidstr++;
+ ret->sub_auths[i] = strtoul(sidstr, &p, 10);
+ if (p == sidstr) {
+ return false;
+ }
+ sidstr = p;
+ }
+
+ return true;
+}
+
+/*
+ convert a string to a dom_sid, returning a talloc'd dom_sid
+*/
+struct dom_sid *dom_sid_parse_talloc(TALLOC_CTX *mem_ctx, const char *sidstr)
+{
+ struct dom_sid *ret;
+ ret = talloc(mem_ctx, struct dom_sid);
+ if (!ret) {
+ return NULL;
+ }
+ if (!dom_sid_parse(sidstr, ret)) {
+ talloc_free(ret);
+ return NULL;
+ }
+
+ return ret;
+}
+
+/*
+ convert a string to a dom_sid, returning a talloc'd dom_sid
+*/
+struct dom_sid *dom_sid_parse_length(TALLOC_CTX *mem_ctx, const DATA_BLOB *sid)
+{
+ struct dom_sid *ret;
+ char *p = talloc_strndup(mem_ctx, (char *)sid->data, sid->length);
+ if (!p) {
+ return NULL;
+ }
+ ret = dom_sid_parse_talloc(mem_ctx, p);
+ talloc_free(p);
+ return ret;
+}
+
+/*
+ copy a dom_sid structure
+*/
+struct dom_sid *dom_sid_dup(TALLOC_CTX *mem_ctx, const struct dom_sid *dom_sid)
+{
+ struct dom_sid *ret;
+ int i;
+
+ if (!dom_sid) {
+ return NULL;
+ }
+
+ ret = talloc(mem_ctx, struct dom_sid);
+ if (!ret) {
+ return NULL;
+ }
+
+ ret->sid_rev_num = dom_sid->sid_rev_num;
+ ret->id_auth[0] = dom_sid->id_auth[0];
+ ret->id_auth[1] = dom_sid->id_auth[1];
+ ret->id_auth[2] = dom_sid->id_auth[2];
+ ret->id_auth[3] = dom_sid->id_auth[3];
+ ret->id_auth[4] = dom_sid->id_auth[4];
+ ret->id_auth[5] = dom_sid->id_auth[5];
+ ret->num_auths = dom_sid->num_auths;
+
+ for (i=0;i<dom_sid->num_auths;i++) {
+ ret->sub_auths[i] = dom_sid->sub_auths[i];
+ }
+
+ return ret;
+}
+
+/*
+ add a rid to a domain dom_sid to make a full dom_sid. This function
+ returns a new sid in the supplied memory context
+*/
+struct dom_sid *dom_sid_add_rid(TALLOC_CTX *mem_ctx,
+ const struct dom_sid *domain_sid,
+ uint32_t rid)
+{
+ struct dom_sid *sid;
+
+ sid = talloc(mem_ctx, struct dom_sid);
+ if (!sid) return NULL;
+
+ *sid = *domain_sid;
+
+ sid->sub_auths[sid->num_auths] = rid;
+ sid->num_auths++;
+
+ return sid;
+}
+
+/*
+ Split up a SID into its domain and RID part
+*/
+NTSTATUS dom_sid_split_rid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
+ struct dom_sid **domain, uint32_t *rid)
+{
+ if (sid->num_auths == 0) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (domain) {
+ if (!(*domain = dom_sid_dup(mem_ctx, sid))) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*domain)->num_auths -= 1;
+ }
+
+ if (rid) {
+ *rid = sid->sub_auths[sid->num_auths - 1];
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ return true if the 2nd sid is in the domain given by the first sid
+*/
+bool dom_sid_in_domain(const struct dom_sid *domain_sid,
+ const struct dom_sid *sid)
+{
+ int i;
+
+ if (!domain_sid || !sid) {
+ return false;
+ }
+
+ if (domain_sid->num_auths > sid->num_auths) {
+ return false;
+ }
+
+ for (i = domain_sid->num_auths-1; i >= 0; --i) {
+ if (domain_sid->sub_auths[i] != sid->sub_auths[i]) {
+ return false;
+ }
+ }
+
+ return dom_sid_compare_auth(domain_sid, sid) == 0;
+}
+
+/*
+ convert a dom_sid to a string
+*/
+char *dom_sid_string(TALLOC_CTX *mem_ctx, const struct dom_sid *sid)
+{
+ int i, ofs, maxlen;
+ uint32_t ia;
+ char *ret;
+
+ if (!sid) {
+ return talloc_strdup(mem_ctx, "(NULL SID)");
+ }
+
+ maxlen = sid->num_auths * 11 + 25;
+ ret = talloc_array(mem_ctx, char, maxlen);
+ if (!ret) return talloc_strdup(mem_ctx, "(SID ERR)");
+
+ ia = (sid->id_auth[5]) +
+ (sid->id_auth[4] << 8 ) +
+ (sid->id_auth[3] << 16) +
+ (sid->id_auth[2] << 24);
+
+ ofs = snprintf(ret, maxlen, "S-%u-%lu",
+ (unsigned int)sid->sid_rev_num, (unsigned long)ia);
+
+ for (i = 0; i < sid->num_auths; i++) {
+ ofs += snprintf(ret + ofs, maxlen - ofs, "-%lu",
+ (unsigned long)sid->sub_auths[i]);
+ }
+
+ return ret;
+}
diff --git a/libcli/security/dom_sid.h b/libcli/security/dom_sid.h
new file mode 100644
index 0000000000..9d96392777
--- /dev/null
+++ b/libcli/security/dom_sid.h
@@ -0,0 +1,42 @@
+/*
+ Unix SMB/CIFS implementation.
+ Samba utility functions
+
+ Copyright (C) Stefan (metze) Metzmacher 2002-2004
+ Copyright (C) Andrew Tridgell 1992-2004
+ Copyright (C) Jeremy Allison 1999
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _DOM_SID_H_
+#define _DOM_SID_H_
+
+int dom_sid_compare(const struct dom_sid *sid1, const struct dom_sid *sid2);
+bool dom_sid_equal(const struct dom_sid *sid1, const struct dom_sid *sid2);
+bool dom_sid_parse(const char *sidstr, struct dom_sid *ret);
+struct dom_sid *dom_sid_parse_talloc(TALLOC_CTX *mem_ctx, const char *sidstr);
+struct dom_sid *dom_sid_parse_length(TALLOC_CTX *mem_ctx, const DATA_BLOB *sid);
+struct dom_sid *dom_sid_dup(TALLOC_CTX *mem_ctx, const struct dom_sid *dom_sid);
+struct dom_sid *dom_sid_add_rid(TALLOC_CTX *mem_ctx,
+ const struct dom_sid *domain_sid,
+ uint32_t rid);
+NTSTATUS dom_sid_split_rid(TALLOC_CTX *mem_ctx, const struct dom_sid *sid,
+ struct dom_sid **domain, uint32_t *rid);
+bool dom_sid_in_domain(const struct dom_sid *domain_sid,
+ const struct dom_sid *sid);
+char *dom_sid_string(TALLOC_CTX *mem_ctx, const struct dom_sid *sid);
+
+#endif /*_DOM_SID_H_*/
+
generated by cgit (git 2.34.1) at 2024-11-10 18:15:59 +0000