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-rw-r--r--source3/auth/token_util.c183
1 files changed, 157 insertions, 26 deletions
diff --git a/source3/auth/token_util.c b/source3/auth/token_util.c
index d2a03b4031..660fcf6192 100644
--- a/source3/auth/token_util.c
+++ b/source3/auth/token_util.c
@@ -335,6 +335,120 @@ NTSTATUS create_builtin_administrators(const struct dom_sid *dom_sid)
return status;
}
+static NTSTATUS finalize_local_nt_token(struct nt_user_token *result,
+ bool is_guest);
+
+NTSTATUS create_local_nt_token_from_info3(TALLOC_CTX *mem_ctx,
+ bool is_guest,
+ struct netr_SamInfo3 *info3,
+ struct extra_auth_info *extra,
+ struct nt_user_token **ntok)
+{
+ struct nt_user_token *usrtok = NULL;
+ NTSTATUS status;
+ int i;
+
+ DEBUG(10, ("Create local NT token for %s\n",
+ info3->base.account_name.string));
+
+ usrtok = talloc_zero(mem_ctx, struct nt_user_token);
+ if (!usrtok) {
+ DEBUG(0, ("talloc failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* Add the user and primary group sid FIRST */
+ /* check if the user rid is the special "Domain Guests" rid.
+ * If so pick the first sid for the extra sids instead as it
+ * is a local fake account */
+ usrtok->user_sids = talloc_array(usrtok, struct dom_sid, 2);
+ if (!usrtok->user_sids) {
+ TALLOC_FREE(usrtok);
+ return NT_STATUS_NO_MEMORY;
+ }
+ usrtok->num_sids = 2;
+
+ /* USER SID */
+ if (info3->base.rid == (uint32_t)(-1)) {
+ /* this is a signal the user was fake and generated,
+ * the actual SID we want to use is stored in the extra
+ * sids */
+ if (is_null_sid(&extra->user_sid)) {
+ /* we couldn't find the user sid, bail out */
+ DEBUG(3, ("Invalid user SID\n"));
+ TALLOC_FREE(usrtok);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ sid_copy(&usrtok->user_sids[0], &extra->user_sid);
+ } else {
+ sid_copy(&usrtok->user_sids[0], info3->base.domain_sid);
+ sid_append_rid(&usrtok->user_sids[0], info3->base.rid);
+ }
+
+ /* GROUP SID */
+ if (info3->base.primary_gid == (uint32_t)(-1)) {
+ /* this is a signal the user was fake and generated,
+ * the actual SID we want to use is stored in the extra
+ * sids */
+ if (is_null_sid(&extra->pgid_sid)) {
+ /* we couldn't find the user sid, bail out */
+ DEBUG(3, ("Invalid group SID\n"));
+ TALLOC_FREE(usrtok);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+ sid_copy(&usrtok->user_sids[1], &extra->pgid_sid);
+ } else {
+ sid_copy(&usrtok->user_sids[1], info3->base.domain_sid);
+ sid_append_rid(&usrtok->user_sids[1],
+ info3->base.primary_gid);
+ }
+
+ /* Now the SIDs we got from authentication. These are the ones from
+ * the info3 struct or from the pdb_enum_group_memberships, depending
+ * on who authenticated the user.
+ * Note that we start the for loop at "1" here, we already added the
+ * first group sid as primary above. */
+
+ for (i = 0; i < info3->base.groups.count; i++) {
+ struct dom_sid tmp_sid;
+
+ sid_copy(&tmp_sid, info3->base.domain_sid);
+ sid_append_rid(&tmp_sid, info3->base.groups.rids[i].rid);
+
+ status = add_sid_to_array_unique(usrtok, &tmp_sid,
+ &usrtok->user_sids,
+ &usrtok->num_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Failed to add SID to nt token\n"));
+ TALLOC_FREE(usrtok);
+ return status;
+ }
+ }
+
+ /* now also add extra sids if they are not the special user/group
+ * sids */
+ for (i = 0; i < info3->sidcount; i++) {
+ status = add_sid_to_array_unique(usrtok,
+ info3->sids[i].sid,
+ &usrtok->user_sids,
+ &usrtok->num_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Failed to add SID to nt token\n"));
+ TALLOC_FREE(usrtok);
+ return status;
+ }
+ }
+
+ status = finalize_local_nt_token(usrtok, is_guest);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Failed to finalize nt token\n"));
+ TALLOC_FREE(usrtok);
+ return status;
+ }
+
+ *ntok = usrtok;
+ return NT_STATUS_OK;
+}
/*******************************************************************
Create a NT token for the user, expanding local aliases
@@ -349,8 +463,6 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
struct nt_user_token *result = NULL;
int i;
NTSTATUS status;
- gid_t gid;
- struct dom_sid dom_sid;
DEBUG(10, ("Create local NT token for %s\n",
sid_string_dbg(user_sid)));
@@ -365,6 +477,7 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
status = add_sid_to_array(result, user_sid,
&result->user_sids, &result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(result);
return NULL;
}
@@ -374,21 +487,54 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
&result->user_sids,
&result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(result);
return NULL;
}
}
+ /* Now the SIDs we got from authentication. These are the ones from
+ * the info3 struct or from the pdb_enum_group_memberships, depending
+ * on who authenticated the user.
+ * Note that we start the for loop at "1" here, we already added the
+ * first group sid as primary above. */
+
+ for (i=1; i<num_groupsids; i++) {
+ status = add_sid_to_array_unique(result, &groupsids[i],
+ &result->user_sids,
+ &result->num_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(result);
+ return NULL;
+ }
+ }
+
+ status = finalize_local_nt_token(result, is_guest);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(result);
+ return NULL;
+ }
+
+ return result;
+}
+
+static NTSTATUS finalize_local_nt_token(struct nt_user_token *result,
+ bool is_guest)
+{
+ struct dom_sid dom_sid;
+ gid_t gid;
+ NTSTATUS status;
+
/* Add in BUILTIN sids */
status = add_sid_to_array(result, &global_sid_World,
&result->user_sids, &result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
- return NULL;
+ return status;
}
status = add_sid_to_array(result, &global_sid_Network,
&result->user_sids, &result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
- return NULL;
+ return status;
}
if (is_guest) {
@@ -396,7 +542,7 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
&result->user_sids,
&result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
- return NULL;
+ return status;
}
} else {
status = add_sid_to_array(result,
@@ -404,22 +550,7 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
&result->user_sids,
&result->num_sids);
if (!NT_STATUS_IS_OK(status)) {
- return NULL;
- }
- }
-
- /* Now the SIDs we got from authentication. These are the ones from
- * the info3 struct or from the pdb_enum_group_memberships, depending
- * on who authenticated the user.
- * Note that we start the for loop at "1" here, we already added the
- * first group sid as primary above. */
-
- for (i=1; i<num_groupsids; i++) {
- status = add_sid_to_array_unique(result, &groupsids[i],
- &result->user_sids,
- &result->num_sids);
- if (!NT_STATUS_IS_OK(status)) {
- return NULL;
+ return status;
}
}
@@ -490,8 +621,7 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
if (!NT_STATUS_IS_OK(status)) {
unbecome_root();
- TALLOC_FREE(result);
- return NULL;
+ return status;
}
/* Finally the builtin ones */
@@ -500,17 +630,18 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
if (!NT_STATUS_IS_OK(status)) {
unbecome_root();
- TALLOC_FREE(result);
- return NULL;
+ return status;
}
unbecome_root();
}
+ /* Add privileges based on current user sids */
get_privileges_for_sids(&result->privileges, result->user_sids,
result->num_sids);
- return result;
+
+ return NT_STATUS_OK;
}
/****************************************************************************
generated by cgit (git 2.34.1) at 2024-10-30 05:21:00 +0000