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authorVolker Lendecke <vl@samba.org>2009-10-12 16:43:19 +0200
committerVolker Lendecke <vl@samba.org>2009-10-13 20:34:25 +0200
commit1302526a74fe71b4cb56ff3c0ce26d6c5b71d360 (patch)
treef6b6a9ef88ece6ec2a5a6e4e39ffc4582b2da748 /source3/libsmb
parentf3869f90f5efeabd404cc0c61f41cc5fcaeefc61 (diff)
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s3:libsmb: Add cli_notify
Diffstat (limited to 'source3/libsmb')
-rw-r--r--source3/libsmb/clifile.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index b15aa8d998..9cab3f675e 100644
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -5027,3 +5027,143 @@ NTSTATUS cli_posix_rmdir(struct cli_state *cli, const char *fname)
}
return status;
}
+
+struct cli_notify_state {
+ uint8_t setup[8];
+ uint32_t num_changes;
+ struct notify_change *changes;
+};
+
+static void cli_notify_done(struct tevent_req *subreq);
+
+struct tevent_req *cli_notify_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct cli_state *cli, uint16_t fnum,
+ uint32_t buffer_size,
+ uint32_t completion_filter, bool recursive)
+{
+ struct tevent_req *req, *subreq;
+ struct cli_notify_state *state;
+
+ req = tevent_req_create(mem_ctx, &state, struct cli_notify_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ SIVAL(state->setup, 0, completion_filter);
+ SSVAL(state->setup, 4, fnum);
+ SSVAL(state->setup, 6, recursive);
+
+ subreq = cli_trans_send(
+ state, /* mem ctx. */
+ ev, /* event ctx. */
+ cli, /* cli_state. */
+ SMBnttrans, /* cmd. */
+ NULL, /* pipe name. */
+ -1, /* fid. */
+ NT_TRANSACT_NOTIFY_CHANGE, /* function. */
+ 0, /* flags. */
+ (uint16_t *)state->setup, /* setup. */
+ 4, /* num setup uint16_t words. */
+ 0, /* max returned setup. */
+ NULL, /* param. */
+ 0, /* num param. */
+ buffer_size, /* max returned param. */
+ NULL, /* data. */
+ 0, /* num data. */
+ 0); /* max returned data. */
+
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, cli_notify_done, req);
+ return req;
+}
+
+static void cli_notify_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_notify_state *state = tevent_req_data(
+ req, struct cli_notify_state);
+ NTSTATUS status;
+ uint8_t *params;
+ uint32_t i, ofs, num_params;
+
+ status = cli_trans_recv(subreq, talloc_tos(), NULL, NULL,
+ &params, &num_params, NULL, NULL);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("cli_trans_recv returned %s\n", nt_errstr(status)));
+ tevent_req_nterror(req, status);
+ return;
+ }
+
+ state->num_changes = 0;
+ ofs = 0;
+
+ while (num_params - ofs > 12) {
+ uint32_t len = IVAL(params, ofs);
+ state->num_changes += 1;
+
+ if ((len == 0) || (ofs+len >= num_params)) {
+ break;
+ }
+ ofs += len;
+ }
+
+ state->changes = talloc_array(state, struct notify_change,
+ state->num_changes);
+ if (tevent_req_nomem(state->changes, req)) {
+ TALLOC_FREE(params);
+ return;
+ }
+
+ ofs = 0;
+
+ for (i=0; i<state->num_changes; i++) {
+ uint32_t next = IVAL(params, ofs);
+ uint32_t len = IVAL(params, ofs+8);
+ ssize_t ret;
+ char *name;
+
+ if ((next != 0) && (len+12 != next)) {
+ TALLOC_FREE(params);
+ tevent_req_nterror(
+ req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ state->changes[i].action = IVAL(params, ofs+4);
+ ret = clistr_pull_talloc(params, (char *)params, &name,
+ params+ofs+12, len,
+ STR_TERMINATE|STR_UNICODE);
+ if (ret == -1) {
+ TALLOC_FREE(params);
+ tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+ return;
+ }
+ state->changes[i].name = name;
+ ofs += next;
+ }
+
+ TALLOC_FREE(params);
+ tevent_req_done(req);
+}
+
+NTSTATUS cli_notify_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ uint32_t *pnum_changes,
+ struct notify_change **pchanges)
+{
+ struct cli_notify_state *state = tevent_req_data(
+ req, struct cli_notify_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+
+ *pnum_changes = state->num_changes;
+ *pchanges = talloc_move(mem_ctx, &state->changes);
+ return NT_STATUS_OK;
+}