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DEFINITIONS
This source file includes following definitions.
- fsinfo_connect
- fsinfo_query
- fsinfo_state_handler
- fsinfo_raw_handler
- fsinfo_composite_handler
- smb_composite_fsinfo_send
- smb_composite_fsinfo_recv
- smb_composite_fsinfo
1 /*
2 a composite API for quering file system information
3 */
4
5 #include "includes.h"
6 #include "libcli/raw/libcliraw.h"
7 #include "libcli/raw/raw_proto.h"
8 #include "libcli/composite/composite.h"
9 #include "libcli/smb_composite/smb_composite.h"
10 #include "libcli/resolve/resolve.h"
11
12 /* the stages of this call */
13 enum fsinfo_stage {FSINFO_CONNECT, FSINFO_QUERY};
14
15
16 static void fsinfo_raw_handler(struct smbcli_request *req);
17 static void fsinfo_composite_handler(struct composite_context *c);
18 static void fsinfo_state_handler(struct composite_context *c);
19
20 struct fsinfo_state {
21 enum fsinfo_stage stage;
22 struct composite_context *creq;
23 struct smb_composite_fsinfo *io;
24 struct smb_composite_connect *connect;
25 union smb_fsinfo *fsinfo;
26 struct smbcli_tree *tree;
27 struct smbcli_request *req;
28 };
29
30 static NTSTATUS fsinfo_connect(struct composite_context *c,
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31 struct smb_composite_fsinfo *io)
32 {
33 NTSTATUS status;
34 struct fsinfo_state *state;
35 state = talloc_get_type(c->private_data, struct fsinfo_state);
36
37 status = smb_composite_connect_recv(state->creq, c);
38 NT_STATUS_NOT_OK_RETURN(status);
39
40 state->fsinfo = talloc(state, union smb_fsinfo);
41 NT_STATUS_HAVE_NO_MEMORY(state->fsinfo);
42
43 state->fsinfo->generic.level = io->in.level;
44
45 state->req = smb_raw_fsinfo_send(state->connect->out.tree,
46 state,
47 state->fsinfo);
48 NT_STATUS_HAVE_NO_MEMORY(state->req);
49
50 state->req->async.private_data = c;
51 state->req->async.fn = fsinfo_raw_handler;
52
53 state->stage = FSINFO_QUERY;
54
55 return NT_STATUS_OK;
56 }
57
58 static NTSTATUS fsinfo_query(struct composite_context *c,
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59 struct smb_composite_fsinfo *io)
60 {
61 NTSTATUS status;
62 struct fsinfo_state *state;
63 state = talloc_get_type(c->private_data, struct fsinfo_state);
64
65 status = smb_raw_fsinfo_recv(state->req, state, state->fsinfo);
66 NT_STATUS_NOT_OK_RETURN(status);
67
68 state->io->out.fsinfo = state->fsinfo;
69
70 c->state = COMPOSITE_STATE_DONE;
71
72 if (c->async.fn)
73 c->async.fn(c);
74
75 return NT_STATUS_OK;
76
77 }
78
79 /*
80 handler for completion of a sub-request in fsinfo
81 */
82 static void fsinfo_state_handler(struct composite_context *creq)
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83 {
84 struct fsinfo_state *state = talloc_get_type(creq->private_data, struct fsinfo_state);
85
86 /* when this handler is called, the stage indicates what
87 call has just finished */
88 switch (state->stage) {
89 case FSINFO_CONNECT:
90 creq->status = fsinfo_connect(creq, state->io);
91 break;
92
93 case FSINFO_QUERY:
94 creq->status = fsinfo_query(creq, state->io);
95 break;
96 }
97
98 if (!NT_STATUS_IS_OK(creq->status)) {
99 creq->state = COMPOSITE_STATE_ERROR;
100 }
101
102 if (creq->state >= COMPOSITE_STATE_DONE && creq->async.fn) {
103 creq->async.fn(creq);
104 }
105 }
106
107 /*
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()
110 */
111 static void fsinfo_raw_handler(struct smbcli_request *req)
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112 {
113 struct composite_context *c = talloc_get_type(req->async.private_data,
114 struct composite_context);
115 fsinfo_state_handler(c);
116 }
117
118 static void fsinfo_composite_handler(struct composite_context *creq)
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119 {
120 struct composite_context *c = talloc_get_type(creq->async.private_data,
121 struct composite_context);
122 fsinfo_state_handler(c);
123 }
124
125 /*
126 composite fsinfo call - connects to a tree and queries a file system information
127 */
128 struct composite_context *smb_composite_fsinfo_send(struct smbcli_tree *tree,
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129 struct smb_composite_fsinfo *io,
130 struct resolve_context *resolve_ctx)
131 {
132 struct composite_context *c;
133 struct fsinfo_state *state;
134
135 c = talloc_zero(tree, struct composite_context);
136 if (c == NULL) goto failed;
137
138 state = talloc(c, struct fsinfo_state);
139 if (state == NULL) goto failed;
140
141 state->io = io;
142
143 state->connect = talloc(state, struct smb_composite_connect);
144
145 if (state->connect == NULL) goto failed;
146
147 state->connect->in.dest_host = io->in.dest_host;
148 state->connect->in.dest_ports = io->in.dest_ports;
149 state->connect->in.socket_options = io->in.socket_options;
150 state->connect->in.called_name = io->in.called_name;
151 state->connect->in.service = io->in.service;
152 state->connect->in.service_type = io->in.service_type;
153 state->connect->in.credentials = io->in.credentials;
154 state->connect->in.fallback_to_anonymous = false;
155 state->connect->in.workgroup = io->in.workgroup;
156 state->connect->in.iconv_convenience = io->in.iconv_convenience;
157 state->connect->in.gensec_settings = io->in.gensec_settings;
158
159 state->connect->in.options = tree->session->transport->options;
160 state->connect->in.session_options = tree->session->options;
161
162 c->state = COMPOSITE_STATE_IN_PROGRESS;
163 state->stage = FSINFO_CONNECT;
164 c->private_data = state;
165
166 state->creq = smb_composite_connect_send(state->connect, state,
167 resolve_ctx, c->event_ctx);
168
169 if (state->creq == NULL) goto failed;
170
171 state->creq->async.private_data = c;
172 state->creq->async.fn = fsinfo_composite_handler;
173
174 return c;
175 failed:
176 talloc_free(c);
177 return NULL;
178 }
179
180 /*
181 composite fsinfo call - recv side
182 */
183 NTSTATUS smb_composite_fsinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx)
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184 {
185 NTSTATUS status;
186
187 status = composite_wait(c);
188
189 if (NT_STATUS_IS_OK(status)) {
190 struct fsinfo_state *state = talloc_get_type(c->private_data, struct fsinfo_state);
191 talloc_steal(mem_ctx, state->io->out.fsinfo);
192 }
193
194 talloc_free(c);
195 return status;
196 }
197
198
199 /*
200 composite fsinfo call - sync interface
201 */
202 NTSTATUS smb_composite_fsinfo(struct smbcli_tree *tree,
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203 TALLOC_CTX *mem_ctx,
204 struct smb_composite_fsinfo *io,
205 struct resolve_context *resolve_ctx)
206 {
207 struct composite_context *c = smb_composite_fsinfo_send(tree, io, resolve_ctx);
208 return smb_composite_fsinfo_recv(c, mem_ctx);
209 }
210