libsmb: Add cli_chmod

Go via create/fchmod/close. Only fchmod has to be smb2-specific this way.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index 8ea457f6132b8f71b807ee7c55f4dde88b9bddb8..449bfe4b6afe079b5f4910cb307e1d874a843886 100644 (file)
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -1139,6 +1139,157 @@ NTSTATUS cli_fchmod_recv(struct tevent_req *req)
        return tevent_req_simple_recv_ntstatus(req);
 }
 
+struct cli_chmod_state {
+       struct tevent_context *ev;
+       struct cli_state *cli;
+       mode_t mode;
+
+       uint16_t fnum;
+
+       NTSTATUS fchmod_status;
+
+       uint8_t data[100]; /* smb1 posix extensions */
+};
+
+static void cli_chmod_opened(struct tevent_req *subreq);
+static void cli_chmod_done(struct tevent_req *subreq);
+static void cli_chmod_closed(struct tevent_req *subreq);
+
+struct tevent_req *cli_chmod_send(TALLOC_CTX *mem_ctx,
+                                 struct tevent_context *ev,
+                                 struct cli_state *cli,
+                                 const char *fname,
+                                 mode_t mode)
+{
+       struct tevent_req *req = NULL, *subreq = NULL;
+       struct cli_chmod_state *state = NULL;
+
+       req = tevent_req_create(mem_ctx, &state, struct cli_chmod_state);
+       if (req == NULL) {
+               return NULL;
+       }
+       state->ev = ev;
+       state->cli = cli;
+       state->mode = mode;
+
+       subreq = cli_ntcreate_send(
+               state,                              /* mem_ctx */
+               ev,                                 /* ev */
+               cli,                                /* cli */
+               fname,                              /* fname */
+               0,                                  /* create_flags */
+               SEC_STD_WRITE_DAC,                  /* desired_access */
+               0,                                  /* file_attributes */
+               FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
+               FILE_OPEN,                          /* create_disposition */
+               0x0,                                /* create_options */
+               SMB2_IMPERSONATION_IMPERSONATION,   /* impersonation_level */
+               0x0);                               /* SecurityFlags */
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, cli_chmod_opened, req);
+       return req;
+}
+
+static void cli_chmod_opened(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(subreq,
+                                                         struct tevent_req);
+       struct cli_chmod_state *state = tevent_req_data(
+               req, struct cli_chmod_state);
+       NTSTATUS status;
+
+       status = cli_ntcreate_recv(subreq, &state->fnum, NULL);
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               return;
+       }
+
+       subreq = cli_fchmod_send(
+               state, state->ev, state->cli, state->fnum, state->mode);
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, cli_chmod_done, req);
+}
+
+static void cli_chmod_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(subreq,
+                                                         struct tevent_req);
+       struct cli_chmod_state *state = tevent_req_data(
+               req, struct cli_chmod_state);
+
+       state->fchmod_status = cli_fchmod_recv(subreq);
+       TALLOC_FREE(subreq);
+
+       subreq = cli_close_send(state, state->ev, state->cli, state->fnum, 0);
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, cli_chmod_closed, req);
+}
+
+static void cli_chmod_closed(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(subreq,
+                                                         struct tevent_req);
+       NTSTATUS status;
+
+       status = cli_close_recv(subreq);
+       TALLOC_FREE(subreq);
+       if (tevent_req_nterror(req, status)) {
+               return;
+       }
+       tevent_req_done(req);
+}
+
+NTSTATUS cli_chmod_recv(struct tevent_req *req)
+{
+       struct cli_chmod_state *state = tevent_req_data(
+               req, struct cli_chmod_state);
+       NTSTATUS status;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               tevent_req_received(req);
+               return status;
+       }
+       tevent_req_received(req);
+       return state->fchmod_status;
+}
+
+NTSTATUS cli_chmod(struct cli_state *cli, const char *fname, mode_t mode)
+{
+       TALLOC_CTX *frame = talloc_stackframe();
+       struct tevent_context *ev = NULL;
+       struct tevent_req *req = NULL;
+       NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+       if (smbXcli_conn_has_async_calls(cli->conn)) {
+               /*
+                * Can't use sync call while an async call is in flight
+                */
+               status = NT_STATUS_INVALID_PARAMETER;
+               goto fail;
+       }
+       ev = samba_tevent_context_init(frame);
+       if (ev == NULL) {
+               goto fail;
+       }
+       req = cli_chmod_send(frame, ev, cli, fname, mode);
+       if (req == NULL) {
+               goto fail;
+       }
+       if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+               goto fail;
+       }
+       status = cli_chmod_recv(req);
+fail:
+       TALLOC_FREE(frame);
+       return status;
+}
+
 /****************************************************************************
  chown a file (UNIX extensions).
 ****************************************************************************/

diff --git a/source3/libsmb/proto.h b/source3/libsmb/proto.h
index a91dd06cfec1188bae7d372af1dcdb3ce3ec48d2..50912451940303f803c26771d4792a1ea3b2712c 100644 (file)
--- a/source3/libsmb/proto.h
+++ b/source3/libsmb/proto.h
@@ -325,6 +325,13 @@ struct tevent_req *cli_fchmod_send(TALLOC_CTX *mem_ctx,
                                   uint16_t fnum,
                                   mode_t mode);
 NTSTATUS cli_fchmod_recv(struct tevent_req *req);
+struct tevent_req *cli_chmod_send(TALLOC_CTX *mem_ctx,
+                                 struct tevent_context *ev,
+                                 struct cli_state *cli,
+                                 const char *fname,
+                                 mode_t mode);
+NTSTATUS cli_chmod_recv(struct tevent_req *req);
+NTSTATUS cli_chmod(struct cli_state *cli, const char *fname, mode_t mode);
 struct tevent_req *cli_posix_chown_send(TALLOC_CTX *mem_ctx,
                                        struct tevent_context *ev,
                                        struct cli_state *cli,