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-rw-r--r--source4/auth/config.mk1
-rw-r--r--source4/auth/system_session.c120
2 files changed, 119 insertions, 2 deletions
diff --git a/source4/auth/config.mk b/source4/auth/config.mk
index e9d5b7000c..2e9b2d86ce 100644
--- a/source4/auth/config.mk
+++ b/source4/auth/config.mk
@@ -11,6 +11,7 @@ PUBLIC_PROTO_HEADER = session_proto.h
[SUBSYSTEM::auth_system_session]
OBJ_FILES = system_session.o
PUBLIC_PROTO_HEADER = system_session_proto.h
+PRIVATE_DEPENDENCIES = auth_session
[SUBSYSTEM::auth_sam]
PRIVATE_PROTO_HEADER = auth_sam.h
diff --git a/source4/auth/system_session.c b/source4/auth/system_session.c
index ec461cda5a..c98d0b1d2c 100644
--- a/source4/auth/system_session.c
+++ b/source4/auth/system_session.c
@@ -24,7 +24,6 @@
#include "includes.h"
#include "libcli/security/security.h"
#include "libcli/auth/libcli_auth.h"
-#include "dsdb/samdb/samdb.h"
#include "auth/credentials/credentials.h"
#include "param/param.h"
#include "auth/auth.h" /* for auth_serversupplied_info */
@@ -32,6 +31,123 @@
#include "auth/system_session_proto.h"
/**
+ * Create the SID list for this user.
+ *
+ * @note Specialised version for system sessions that doesn't use the SAM.
+ */
+static NTSTATUS create_token(TALLOC_CTX *mem_ctx,
+ struct dom_sid *user_sid,
+ struct dom_sid *group_sid,
+ int n_groupSIDs,
+ struct dom_sid **groupSIDs,
+ bool is_authenticated,
+ struct security_token **token)
+{
+ struct security_token *ptoken;
+ int i;
+
+ ptoken = security_token_initialise(mem_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(ptoken);
+
+ ptoken->sids = talloc_array(ptoken, struct dom_sid *, n_groupSIDs + 5);
+ NT_STATUS_HAVE_NO_MEMORY(ptoken->sids);
+
+ ptoken->user_sid = talloc_reference(ptoken, user_sid);
+ ptoken->group_sid = talloc_reference(ptoken, group_sid);
+ ptoken->privilege_mask = 0;
+
+ ptoken->sids[0] = ptoken->user_sid;
+ ptoken->sids[1] = ptoken->group_sid;
+
+ /*
+ * Finally add the "standard" SIDs.
+ * The only difference between guest and "anonymous"
+ * is the addition of Authenticated_Users.
+ */
+ ptoken->sids[2] = dom_sid_parse_talloc(ptoken->sids, SID_WORLD);
+ NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[2]);
+ ptoken->sids[3] = dom_sid_parse_talloc(ptoken->sids, SID_NT_NETWORK);
+ NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[3]);
+ ptoken->num_sids = 4;
+
+ if (is_authenticated) {
+ ptoken->sids[4] = dom_sid_parse_talloc(ptoken->sids, SID_NT_AUTHENTICATED_USERS);
+ NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[4]);
+ ptoken->num_sids++;
+ }
+
+ for (i = 0; i < n_groupSIDs; i++) {
+ size_t check_sid_idx;
+ for (check_sid_idx = 1;
+ check_sid_idx < ptoken->num_sids;
+ check_sid_idx++) {
+ if (dom_sid_equal(ptoken->sids[check_sid_idx], groupSIDs[i])) {
+ break;
+ }
+ }
+
+ if (check_sid_idx == ptoken->num_sids) {
+ ptoken->sids[ptoken->num_sids++] = talloc_reference(ptoken->sids, groupSIDs[i]);
+ }
+ }
+
+ *token = ptoken;
+
+ /* Shortcuts to prevent recursion and avoid lookups */
+ if (ptoken->user_sid == NULL) {
+ ptoken->privilege_mask = 0;
+ return NT_STATUS_OK;
+ }
+
+ if (security_token_is_system(ptoken)) {
+ ptoken->privilege_mask = ~0;
+ return NT_STATUS_OK;
+ }
+
+ if (security_token_is_anonymous(ptoken)) {
+ ptoken->privilege_mask = 0;
+ return NT_STATUS_OK;
+ }
+
+ DEBUG(0, ("Created token was not system or anonymous token!"));
+ *token = NULL;
+ return NT_STATUS_INTERNAL_ERROR;
+}
+
+static NTSTATUS generate_session_info(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info *server_info,
+ struct auth_session_info **_session_info)
+{
+ struct auth_session_info *session_info;
+ NTSTATUS nt_status;
+
+ session_info = talloc(mem_ctx, struct auth_session_info);
+ NT_STATUS_HAVE_NO_MEMORY(session_info);
+
+ session_info->server_info = talloc_reference(session_info, server_info);
+
+ /* unless set otherwise, the session key is the user session
+ * key from the auth subsystem */
+ session_info->session_key = server_info->user_session_key;
+
+ nt_status = create_token(session_info,
+ server_info->account_sid,
+ server_info->primary_group_sid,
+ server_info->n_domain_groups,
+ server_info->domain_groups,
+ server_info->authenticated,
+ &session_info->security_token);
+ NT_STATUS_NOT_OK_RETURN(nt_status);
+
+ session_info->credentials = NULL;
+
+ *_session_info = session_info;
+ return NT_STATUS_OK;
+}
+
+
+
+/**
Create a system session, with machine account credentials
*/
_PUBLIC_ struct auth_session_info *system_session(TALLOC_CTX *mem_ctx)
@@ -63,7 +179,7 @@ static NTSTATUS _auth_system_session_info(TALLOC_CTX *parent_ctx,
}
/* references the server_info into the session_info */
- nt_status = auth_generate_session_info(parent_ctx, server_info, &session_info);
+ nt_status = generate_session_info(parent_ctx, server_info, &session_info);
talloc_free(mem_ctx);
NT_STATUS_NOT_OK_RETURN(nt_status);