#include "async_smb.h"
#include "libsmb/clirap.h"
#include "trans2.h"
-#include "ntioctl.h"
#include "libcli/security/secdesc.h"
#include "libcli/security/security.h"
subreq, struct tevent_req);
struct cli_symlink_state *state = tevent_req_data(
req, struct cli_symlink_state);
- NTSTATUS status;
-
- status = cli_nt_delete_on_close_recv(subreq);
- TALLOC_FREE(subreq);
/*
* Ignore status, we can't do much anyway in case of failure
*/
+ (void)cli_nt_delete_on_close_recv(subreq);
+ TALLOC_FREE(subreq);
+
subreq = cli_close_send(state, state->ev, state->cli, state->fnum);
if (tevent_req_nomem(subreq, req)) {
return;
TALLOC_FREE(frame);
return status;
}
+
+struct cli_readlink_state {
+ struct tevent_context *ev;
+ struct cli_state *cli;
+ uint16_t fnum;
+
+ uint16_t setup[4];
+ NTSTATUS get_reparse_status;
+ uint8_t *data;
+ uint32_t num_data;
+};
+
+static void cli_readlink_opened(struct tevent_req *subreq);
+static void cli_readlink_got_reparse_data(struct tevent_req *subreq);
+static void cli_readlink_closed(struct tevent_req *subreq);
+
+struct tevent_req *cli_readlink_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct cli_state *cli,
+ const char *fname)
+{
+ struct tevent_req *req, *subreq;
+ struct cli_readlink_state *state;
+
+ req = tevent_req_create(mem_ctx, &state, struct cli_readlink_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->ev = ev;
+ state->cli = cli;
+
+ subreq = cli_ntcreate_send(
+ state, ev, cli, fname, 0, FILE_READ_ATTRIBUTES | FILE_READ_EA,
+ 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+ FILE_OPEN, FILE_OPEN_REPARSE_POINT, 0);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, cli_readlink_opened, req);
+ return req;
+}
+
+static void cli_readlink_opened(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_readlink_state *state = tevent_req_data(
+ req, struct cli_readlink_state);
+ NTSTATUS status;
+
+ status = cli_ntcreate_recv(subreq, &state->fnum);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ SIVAL(state->setup, 0, FSCTL_GET_REPARSE_POINT);
+ SSVAL(state->setup, 4, state->fnum);
+ SCVAL(state->setup, 6, 1); /* IsFcntl */
+ SCVAL(state->setup, 7, 0); /* IsFlags */
+
+ subreq = cli_trans_send(state, state->ev, state->cli, SMBnttrans,
+ NULL, -1, /* name, fid */
+ NT_TRANSACT_IOCTL, 0,
+ state->setup, 4, 0, /* setup */
+ NULL, 0, 0, /* param */
+ NULL, 0, 16384); /* data */
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, cli_readlink_got_reparse_data, req);
+}
+
+static void cli_readlink_got_reparse_data(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_readlink_state *state = tevent_req_data(
+ req, struct cli_readlink_state);
+
+ state->get_reparse_status = cli_trans_recv(
+ subreq, state, NULL,
+ NULL, 0, NULL, /* rsetup */
+ NULL, 0, NULL, /* rparam */
+ &state->data, 20, &state->num_data); /* rdata */
+ TALLOC_FREE(subreq);
+
+ subreq = cli_close_send(state, state->ev, state->cli, state->fnum);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, cli_readlink_closed, req);
+}
+
+static void cli_readlink_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_readlink_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ char **psubstitute_name, char **pprint_name,
+ uint32_t *pflags)
+{
+ struct cli_readlink_state *state = tevent_req_data(
+ req, struct cli_readlink_state);
+ NTSTATUS status;
+ char *substitute_name;
+ char *print_name;
+ uint32_t flags;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+
+ if (!symlink_reparse_buffer_parse(state->data, state->num_data,
+ talloc_tos(), &substitute_name,
+ &print_name, &flags)) {
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ }
+
+ if (psubstitute_name != NULL) {
+ *psubstitute_name = talloc_move(mem_ctx, &substitute_name);
+ }
+ TALLOC_FREE(substitute_name);
+
+ if (pprint_name != NULL) {
+ *pprint_name = talloc_move(mem_ctx, &print_name);
+ }
+ TALLOC_FREE(print_name);
+
+ if (pflags != NULL) {
+ *pflags = flags;
+ }
+ return NT_STATUS_OK;
+}
+
+NTSTATUS cli_readlink(struct cli_state *cli, const char *fname,
+ TALLOC_CTX *mem_ctx, char **psubstitute_name,
+ char **pprint_name, uint32_t *pflags)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct event_context *ev;
+ struct tevent_req *req;
+ NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+ if (cli_has_async_calls(cli)) {
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+ ev = event_context_init(frame);
+ if (ev == NULL) {
+ goto fail;
+ }
+ req = cli_readlink_send(frame, ev, cli, fname);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = cli_readlink_recv(req, mem_ctx, psubstitute_name,
+ pprint_name, pflags);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
git.samba.org / ira / wip.git / blobdiff