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28f540f4 | 1 | /* |
a7ab6ec8 | 2 | * Copyright (c) 2010, Oracle America, Inc. |
cb636bb2 | 3 | * |
a7ab6ec8 UD |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are | |
6 | * met: | |
cb636bb2 | 7 | * |
a7ab6ec8 UD |
8 | * * Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * * Redistributions in binary form must reproduce the above | |
11 | * copyright notice, this list of conditions and the following | |
12 | * disclaimer in the documentation and/or other materials | |
13 | * provided with the distribution. | |
14 | * * Neither the name of the "Oracle America, Inc." nor the names of its | |
15 | * contributors may be used to endorse or promote products derived | |
16 | * from this software without specific prior written permission. | |
cbd3dceb | 17 | * |
a7ab6ec8 UD |
18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
25 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
27 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
925ed47c | 30 | */ |
28f540f4 RM |
31 | /* |
32 | * pmap_clnt.c | |
33 | * Client interface to pmap rpc service. | |
28f540f4 RM |
34 | */ |
35 | ||
925ed47c UD |
36 | #include <stdio.h> |
37 | #include <unistd.h> | |
4360eafd | 38 | #include <libintl.h> |
925ed47c | 39 | #include <net/if.h> |
412c954a | 40 | #include <ifaddrs.h> |
925ed47c UD |
41 | #include <sys/ioctl.h> |
42 | #include <sys/socket.h> | |
43 | #include <netinet/in.h> | |
44 | #include <arpa/inet.h> | |
28f540f4 RM |
45 | #include <rpc/rpc.h> |
46 | #include <rpc/pmap_prot.h> | |
47 | #include <rpc/pmap_clnt.h> | |
48 | ||
925ed47c UD |
49 | /* |
50 | * Same as get_myaddress, but we try to use the loopback | |
51 | * interface. portmap caches interfaces, and on DHCP clients, | |
52 | * it could be that only loopback is started at this time. | |
53 | */ | |
ec28fc7c | 54 | static bool_t |
925ed47c UD |
55 | __get_myaddress (struct sockaddr_in *addr) |
56 | { | |
412c954a | 57 | struct ifaddrs *ifa; |
925ed47c | 58 | |
21ae57c4 | 59 | if (getifaddrs (&ifa) != 0) |
925ed47c | 60 | { |
412c954a | 61 | perror ("get_myaddress: getifaddrs"); |
925ed47c UD |
62 | exit (1); |
63 | } | |
64 | ||
412c954a UD |
65 | int loopback = 1; |
66 | struct ifaddrs *run; | |
67 | ||
925ed47c | 68 | again: |
412c954a UD |
69 | run = ifa; |
70 | while (run != NULL) | |
925ed47c | 71 | { |
f7e7a396 UD |
72 | if ((run->ifa_flags & IFF_UP) |
73 | && run->ifa_addr != NULL | |
74 | && run->ifa_addr->sa_family == AF_INET | |
412c954a UD |
75 | && ((run->ifa_flags & IFF_LOOPBACK) || loopback == 0)) |
76 | { | |
77 | *addr = *((struct sockaddr_in *) run->ifa_addr); | |
78 | addr->sin_port = htons (PMAPPORT); | |
79 | goto out; | |
80 | } | |
81 | ||
82 | run = run->ifa_next; | |
925ed47c | 83 | } |
412c954a | 84 | |
925ed47c UD |
85 | if (loopback == 1) |
86 | { | |
87 | loopback = 0; | |
88 | goto again; | |
89 | } | |
412c954a UD |
90 | out: |
91 | freeifaddrs (ifa); | |
92 | ||
93 | return run == NULL ? FALSE : TRUE; | |
925ed47c UD |
94 | } |
95 | ||
96 | ||
e7fd8a39 UD |
97 | static const struct timeval timeout = {5, 0}; |
98 | static const struct timeval tottimeout = {60, 0}; | |
28f540f4 RM |
99 | |
100 | /* | |
101 | * Set a mapping between program,version and port. | |
102 | * Calls the pmap service remotely to do the mapping. | |
103 | */ | |
104 | bool_t | |
e7fd8a39 | 105 | pmap_set (u_long program, u_long version, int protocol, u_short port) |
28f540f4 | 106 | { |
e7fd8a39 UD |
107 | struct sockaddr_in myaddress; |
108 | int socket = -1; | |
109 | CLIENT *client; | |
110 | struct pmap parms; | |
111 | bool_t rslt; | |
28f540f4 | 112 | |
ec28fc7c UD |
113 | if (!__get_myaddress (&myaddress)) |
114 | return FALSE; | |
7b57bfe5 UD |
115 | client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket, |
116 | RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); | |
e7fd8a39 UD |
117 | if (client == (CLIENT *) NULL) |
118 | return (FALSE); | |
119 | parms.pm_prog = program; | |
120 | parms.pm_vers = version; | |
121 | parms.pm_prot = protocol; | |
122 | parms.pm_port = port; | |
7b57bfe5 UD |
123 | if (CLNT_CALL (client, PMAPPROC_SET, (xdrproc_t)xdr_pmap, |
124 | (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt, | |
e7fd8a39 UD |
125 | tottimeout) != RPC_SUCCESS) |
126 | { | |
127 | clnt_perror (client, _("Cannot register service")); | |
5bd4d368 | 128 | rslt = FALSE; |
e7fd8a39 UD |
129 | } |
130 | CLNT_DESTROY (client); | |
131 | /* (void)close(socket); CLNT_DESTROY closes it */ | |
132 | return rslt; | |
28f540f4 | 133 | } |
021db4be | 134 | libc_hidden_nolink_sunrpc (pmap_set, GLIBC_2_0) |
28f540f4 RM |
135 | |
136 | /* | |
137 | * Remove the mapping between program,version and port. | |
138 | * Calls the pmap service remotely to do the un-mapping. | |
139 | */ | |
140 | bool_t | |
e7fd8a39 | 141 | pmap_unset (u_long program, u_long version) |
28f540f4 | 142 | { |
e7fd8a39 UD |
143 | struct sockaddr_in myaddress; |
144 | int socket = -1; | |
145 | CLIENT *client; | |
146 | struct pmap parms; | |
147 | bool_t rslt; | |
28f540f4 | 148 | |
ec28fc7c UD |
149 | if (!__get_myaddress (&myaddress)) |
150 | return FALSE; | |
7b57bfe5 UD |
151 | client = clntudp_bufcreate (&myaddress, PMAPPROG, PMAPVERS, timeout, &socket, |
152 | RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); | |
e7fd8a39 UD |
153 | if (client == (CLIENT *) NULL) |
154 | return FALSE; | |
155 | parms.pm_prog = program; | |
156 | parms.pm_vers = version; | |
157 | parms.pm_port = parms.pm_prot = 0; | |
7b57bfe5 UD |
158 | CLNT_CALL (client, PMAPPROC_UNSET, (xdrproc_t)xdr_pmap, |
159 | (caddr_t)&parms, (xdrproc_t)xdr_bool, (caddr_t)&rslt, | |
77fe0b9c | 160 | tottimeout); |
e7fd8a39 UD |
161 | CLNT_DESTROY (client); |
162 | /* (void)close(socket); CLNT_DESTROY already closed it */ | |
163 | return rslt; | |
28f540f4 | 164 | } |
021db4be | 165 | libc_hidden_nolink_sunrpc (pmap_unset, GLIBC_2_0) |