1 /* ccapi/lib/ccapi_ipc.c */
2 /*
3 * Copyright 2006 Massachusetts Institute of Technology.
4 * All Rights Reserved.
5 *
6 * Export of this software from the United States of America may
7 * require a specific license from the United States Government.
8 * It is the responsibility of any person or organization contemplating
9 * export to obtain such a license before exporting.
10 *
11 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
12 * distribute this software and its documentation for any purpose and
13 * without fee is hereby granted, provided that the above copyright
14 * notice appear in all copies and that both that copyright notice and
15 * this permission notice appear in supporting documentation, and that
16 * the name of M.I.T. not be used in advertising or publicity pertaining
17 * to distribution of the software without specific, written prior
18 * permission. Furthermore if you modify this software you must label
19 * your software as modified software and not distribute it in such a
20 * fashion that it might be confused with the original M.I.T. software.
21 * M.I.T. makes no representations about the suitability of
22 * this software for any purpose. It is provided "as is" without express
23 * or implied warranty.
24 */
25
26 #include "ccapi_ipc.h"
27 #include "ccapi_os_ipc.h"
28
29 /* ------------------------------------------------------------------------ */
30
cci_ipc_process_init(void)31 cc_int32 cci_ipc_process_init (void)
32 {
33 return cci_os_ipc_process_init ();
34 }
35
36 /* ------------------------------------------------------------------------ */
37
cci_ipc_thread_init(void)38 cc_int32 cci_ipc_thread_init (void)
39 {
40 return cci_os_ipc_thread_init ();
41 }
42
43 /* ------------------------------------------------------------------------ */
44
_cci_ipc_send(enum cci_msg_id_t in_request_name,cc_int32 in_launch_server,cci_identifier_t in_identifier,k5_ipc_stream in_request_data,k5_ipc_stream * out_reply_data)45 static cc_int32 _cci_ipc_send (enum cci_msg_id_t in_request_name,
46 cc_int32 in_launch_server,
47 cci_identifier_t in_identifier,
48 k5_ipc_stream in_request_data,
49 k5_ipc_stream *out_reply_data)
50 {
51 cc_int32 err = ccNoError;
52 k5_ipc_stream request = NULL;
53 k5_ipc_stream reply = NULL;
54 cc_int32 reply_error = 0;
55
56 if (!in_identifier) { err = cci_check_error (ccErrBadParam); }
57 /* in_request_data may be NULL */
58 /* out_reply_data may be NULL */
59
60 if (!err) {
61 err = cci_message_new_request_header (&request,
62 in_request_name,
63 in_identifier);
64 }
65
66 if (!err && in_request_data) {
67 err = krb5int_ipc_stream_write (request,
68 krb5int_ipc_stream_data (in_request_data),
69 krb5int_ipc_stream_size (in_request_data));
70 }
71
72 if (!err) {
73 err = cci_os_ipc (in_launch_server, request, &reply);
74
75 if (!err && krb5int_ipc_stream_size (reply) > 0) {
76 err = cci_message_read_reply_header (reply, &reply_error);
77 }
78 }
79
80 if (!err && reply_error) {
81 err = reply_error;
82 }
83
84 if (!err && out_reply_data) {
85 *out_reply_data = reply;
86 reply = NULL; /* take ownership */
87 }
88
89 krb5int_ipc_stream_release (request);
90 krb5int_ipc_stream_release (reply);
91
92 return cci_check_error (err);
93 }
94
95 /* ------------------------------------------------------------------------ */
96
cci_ipc_send(enum cci_msg_id_t in_request_name,cci_identifier_t in_identifier,k5_ipc_stream in_request_data,k5_ipc_stream * out_reply_data)97 cc_int32 cci_ipc_send (enum cci_msg_id_t in_request_name,
98 cci_identifier_t in_identifier,
99 k5_ipc_stream in_request_data,
100 k5_ipc_stream *out_reply_data)
101 {
102 return cci_check_error (_cci_ipc_send (in_request_name, 1,
103 in_identifier,
104 in_request_data,
105 out_reply_data));
106 }
107
108 /* ------------------------------------------------------------------------ */
109
cci_ipc_send_no_launch(enum cci_msg_id_t in_request_name,cci_identifier_t in_identifier,k5_ipc_stream in_request_data,k5_ipc_stream * out_reply_data)110 cc_int32 cci_ipc_send_no_launch (enum cci_msg_id_t in_request_name,
111 cci_identifier_t in_identifier,
112 k5_ipc_stream in_request_data,
113 k5_ipc_stream *out_reply_data)
114 {
115 return cci_check_error (_cci_ipc_send (in_request_name, 0,
116 in_identifier,
117 in_request_data,
118 out_reply_data));
119 }
120