2 a composite API for quering file system information
6 #include "libcli/raw/libcliraw.h"
7 #include "libcli/composite/composite.h"
8 #include "libcli/smb_composite/smb_composite.h"
9 #include "librpc/gen_ndr/ndr_security.h"
11 /* the stages of this call */
12 enum fsinfo_stage {FSINFO_CONNECT, FSINFO_QUERY};
15 static void fsinfo_raw_handler(struct smbcli_request *req);
16 static void fsinfo_composite_handler(struct composite_context *c);
17 static void fsinfo_state_handler(struct composite_context *c);
20 enum fsinfo_stage stage;
21 struct composite_context *creq;
22 struct smb_composite_fsinfo *io;
23 struct smb_composite_connect *connect;
24 union smb_fsinfo *fsinfo;
25 struct smbcli_tree *tree;
26 struct smbcli_request *req;
29 static NTSTATUS fsinfo_connect(struct composite_context *c,
30 struct smb_composite_fsinfo *io)
33 struct fsinfo_state *state;
34 state = talloc_get_type(c->private_data, struct fsinfo_state);
36 status = smb_composite_connect_recv(state->creq, c);
37 NT_STATUS_NOT_OK_RETURN(status);
39 state->fsinfo = talloc(state, union smb_fsinfo);
40 NT_STATUS_HAVE_NO_MEMORY(state->fsinfo);
42 state->fsinfo->generic.level = io->in.level;
44 state->req = smb_raw_fsinfo_send(state->connect->out.tree,
47 NT_STATUS_HAVE_NO_MEMORY(state->req);
49 state->req->async.private = c;
50 state->req->async.fn = fsinfo_raw_handler;
52 state->stage = FSINFO_QUERY;
53 c->event_ctx = talloc_reference(c, state->req->session->transport->socket->event.ctx);
58 static NTSTATUS fsinfo_query(struct composite_context *c,
59 struct smb_composite_fsinfo *io)
62 struct fsinfo_state *state;
63 state = talloc_get_type(c->private_data, struct fsinfo_state);
65 status = smb_raw_fsinfo_recv(state->req, state, state->fsinfo);
66 NT_STATUS_NOT_OK_RETURN(status);
68 state->io->out.fsinfo = state->fsinfo;
70 c->state = COMPOSITE_STATE_DONE;
80 handler for completion of a sub-request in fsinfo
82 static void fsinfo_state_handler(struct composite_context *creq)
84 struct fsinfo_state *state = talloc_get_type(creq->private_data, struct fsinfo_state);
86 /* when this handler is called, the stage indicates what
87 call has just finished */
88 switch (state->stage) {
90 creq->status = fsinfo_connect(creq, state->io);
94 creq->status = fsinfo_query(creq, state->io);
98 if (!NT_STATUS_IS_OK(creq->status)) {
99 creq->state = COMPOSITE_STATE_ERROR;
102 if (creq->state >= COMPOSITE_STATE_DONE && creq->async.fn) {
103 creq->async.fn(creq);
108 As raw and composite handlers take different requests, we need to handlers
109 to adapt both for the same state machine in fsinfo_state_handler()
111 static void fsinfo_raw_handler(struct smbcli_request *req)
113 struct composite_context *c = talloc_get_type(req->async.private,
114 struct composite_context);
115 fsinfo_state_handler(c);
118 static void fsinfo_composite_handler(struct composite_context *creq)
120 struct composite_context *c = talloc_get_type(creq->async.private_data,
121 struct composite_context);
122 fsinfo_state_handler(c);
126 composite fsinfo call - connects to a tree and queries a file system information
128 struct composite_context *smb_composite_fsinfo_send(struct smbcli_tree *tree,
129 struct smb_composite_fsinfo *io)
131 struct composite_context *c;
132 struct fsinfo_state *state;
134 c = talloc_zero(tree, struct composite_context);
135 if (c == NULL) goto failed;
137 state = talloc(c, struct fsinfo_state);
138 if (state == NULL) goto failed;
142 state->connect = talloc(state, struct smb_composite_connect);
144 if (state->connect == NULL) goto failed;
146 state->connect->in.dest_host = io->in.dest_host;
147 state->connect->in.port = io->in.port;
148 state->connect->in.called_name = io->in.called_name;
149 state->connect->in.service = io->in.service;
150 state->connect->in.service_type = io->in.service_type;
151 state->connect->in.credentials = io->in.credentials;
152 state->connect->in.workgroup = io->in.workgroup;
154 c->state = COMPOSITE_STATE_IN_PROGRESS;
155 state->stage = FSINFO_CONNECT;
156 c->event_ctx = talloc_reference(c, tree->session->transport->socket->event.ctx);
157 c->private_data = state;
159 state->creq = smb_composite_connect_send(state->connect, c->event_ctx);
161 if (state->creq == NULL) goto failed;
163 state->creq->async.private_data = c;
164 state->creq->async.fn = fsinfo_composite_handler;
173 composite fsinfo call - recv side
175 NTSTATUS smb_composite_fsinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx)
179 status = composite_wait(c);
181 if (NT_STATUS_IS_OK(status)) {
182 struct fsinfo_state *state = talloc_get_type(c->private_data, struct fsinfo_state);
183 talloc_steal(mem_ctx, state->io->out.fsinfo);
192 composite fsinfo call - sync interface
194 NTSTATUS smb_composite_fsinfo(struct smbcli_tree *tree,
196 struct smb_composite_fsinfo *io)
198 struct composite_context *c = smb_composite_fsinfo_send(tree, io);
199 return smb_composite_fsinfo_recv(c, mem_ctx);