1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 /*
27 * Routines to handle getnet* calls in nscd
28 */
29
30 #include <string.h>
31 #include <stdlib.h>
32 #include <sys/types.h>
33 #include <sys/socket.h>
34 #include <netinet/in.h>
35 #include <arpa/inet.h>
36 #include "cache.h"
37
38 #define nam_db ctx->nsc_db[0]
39 #define addr_db ctx->nsc_db[1]
40
41 #define NSC_NAME_NETWORKS_BYNAME "getnetbyname"
42 #define NSC_NAME_NETWORKS_BYADDR "getnetbyaddr"
43
44 static int netaddr_compar(const void *, const void *);
45 static uint_t netaddr_gethash(nss_XbyY_key_t *, int);
46 static void netaddr_getlogstr(char *, char *, size_t, nss_XbyY_args_t *);
47
48 void
net_init_ctx(nsc_ctx_t * ctx)49 net_init_ctx(nsc_ctx_t *ctx) {
50 ctx->dbname = NSS_DBNAM_NETWORKS;
51 ctx->db_count = 2;
52 ctx->file_name = "/etc/inet/networks";
53
54 nam_db = make_cache(nsc_key_ces,
55 NSS_DBOP_NETWORKS_BYNAME,
56 NSC_NAME_NETWORKS_BYNAME,
57 NULL, NULL, NULL, nsc_ht_default, -1);
58
59 addr_db = make_cache(nsc_key_other,
60 NSS_DBOP_NETWORKS_BYADDR,
61 NSC_NAME_NETWORKS_BYADDR,
62 netaddr_compar,
63 netaddr_getlogstr,
64 netaddr_gethash, nsc_ht_default, -1);
65 }
66
67 static void
netaddr_getlogstr(char * name,char * whoami,size_t len,nss_XbyY_args_t * argp)68 netaddr_getlogstr(char *name, char *whoami, size_t len, nss_XbyY_args_t *argp) {
69 if (argp->key.netaddr.type == AF_INET) {
70 uint32_t net;
71 uchar_t *up;
72
73 net = htonl(argp->key.netaddr.net);
74 up = (uchar_t *)&net;
75
76 if (up[0])
77 (void) snprintf(whoami, len, "%s [key=%d.%d.%d.%d]",
78 name,
79 up[0], up[1], up[2], up[3]);
80 else if (up[1])
81 (void) snprintf(whoami, len, "%s [key=%d.%d.%d]",
82 name,
83 up[1], up[2], up[3]);
84 else if (up[2])
85 (void) snprintf(whoami, len, "%s [key=%d.%d]",
86 name,
87 up[2], up[3]);
88 else
89 (void) snprintf(whoami, len, "%s [key=%d]",
90 name,
91 up[3]);
92 } else {
93 (void) snprintf(whoami, len, "%s [key=%d, %d]",
94 name,
95 argp->key.netaddr.net, argp->key.netaddr.type);
96 }
97 }
98
99 static int
netaddr_compar(const void * n1,const void * n2)100 netaddr_compar(const void *n1, const void *n2) {
101 nsc_entry_t *e1, *e2;
102
103 e1 = (nsc_entry_t *)n1;
104 e2 = (nsc_entry_t *)n2;
105
106 if (e1->key.netaddr.type > e2->key.netaddr.type)
107 return (1);
108 else if (e1->key.netaddr.type < e2->key.netaddr.type)
109 return (-1);
110
111 return (_NSC_INT_KEY_CMP(e1->key.netaddr.net, e2->key.netaddr.net));
112 }
113
114 static uint_t
netaddr_gethash(nss_XbyY_key_t * key,int htsize)115 netaddr_gethash(nss_XbyY_key_t *key, int htsize) {
116 return (db_gethash(&key->netaddr.net,
117 sizeof (key->netaddr.net), htsize));
118 }
119