1 /*
2 * SysDB - src/frontend/connection-private.h
3 * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 /*
29 * private data structures used by frontend modules
30 */
32 #ifndef SDB_FRONTEND_CONNECTION_PRIVATE_H
33 #define SDB_FRONTEND_CONNECTION_PRIVATE_H 1
35 #include "frontend/connection.h"
37 #include "core/object.h"
38 #include "core/store.h"
39 #include "utils/strbuf.h"
41 #include <inttypes.h>
42 #include <arpa/inet.h>
44 #include <stdlib.h>
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
50 struct sdb_conn {
51 sdb_object_t super;
53 /* file-descriptor of the open connection */
54 int fd;
56 /* connection and client information */
57 struct sockaddr_storage client_addr;
58 socklen_t client_addr_len;
60 /* read buffer */
61 sdb_strbuf_t *buf;
63 /* connection / protocol state information */
64 uint32_t cmd;
65 uint32_t cmd_len;
67 /* amount of data to skip, e.g., after receiving invalid commands; if this
68 * is non-zero, the 'skip_len' first bytes of 'buf' are invalid */
69 size_t skip_len;
71 sdb_strbuf_t *errbuf;
73 /* user information */
74 char *username; /* NULL if the user has not been authenticated */
75 };
76 #define CONN(obj) ((sdb_conn_t *)(obj))
78 /*
79 * node types
80 */
82 typedef struct {
83 sdb_conn_node_t super;
84 sdb_store_matcher_t *matcher;
85 } conn_matcher_t;
86 #define CONN_MATCHER(obj) ((conn_matcher_t *)(obj))
88 typedef struct {
89 sdb_conn_node_t super;
90 conn_matcher_t *filter;
91 } conn_list_t;
92 #define CONN_LIST(obj) ((conn_list_t *)(obj))
94 typedef struct {
95 sdb_conn_node_t super;
96 char *name;
97 conn_matcher_t *filter;
98 } conn_fetch_t;
99 #define CONN_FETCH(obj) ((conn_fetch_t *)(obj))
101 typedef struct {
102 sdb_conn_node_t super;
103 conn_matcher_t *matcher;
104 conn_matcher_t *filter;
105 } conn_lookup_t;
106 #define CONN_LOOKUP(obj) ((conn_lookup_t *)(obj))
108 /*
109 * type helper functions
110 */
112 static void __attribute__((unused))
113 conn_matcher_destroy(sdb_object_t *obj)
114 {
115 sdb_object_deref(SDB_OBJ(CONN_MATCHER(obj)->matcher));
116 } /* conn_matcher_destroy */
118 static void __attribute__((unused))
119 conn_list_destroy(sdb_object_t *obj)
120 {
121 sdb_object_deref(SDB_OBJ(CONN_LIST(obj)->filter));
122 } /* conn_list_destroy */
124 static void __attribute__((unused))
125 conn_fetch_destroy(sdb_object_t *obj)
126 {
127 if (CONN_FETCH(obj)->name)
128 free(CONN_FETCH(obj)->name);
129 sdb_object_deref(SDB_OBJ(CONN_FETCH(obj)->filter));
130 } /* conn_fetch_destroy */
132 static void __attribute__((unused))
133 conn_lookup_destroy(sdb_object_t *obj)
134 {
135 sdb_object_deref(SDB_OBJ(CONN_LOOKUP(obj)->matcher));
136 sdb_object_deref(SDB_OBJ(CONN_LOOKUP(obj)->filter));
137 } /* conn_lookup_destroy */
139 #ifdef __cplusplus
140 } /* extern "C" */
141 #endif
143 #endif /* ! SDB_FRONTEND_CONNECTION_H */
145 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */