1 | /* |
1 | /* |
2 | sockinfo.C -- socket address management |
2 | sockinfo.C -- socket address management |
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3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
3 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
4 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify it |
5 | it under the terms of the GNU General Public License as published by |
8 | under the terms of the GNU General Public License as published by the |
6 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
7 | (at your option) any later version. |
10 | option) any later version. |
8 | |
11 | |
9 | This program is distributed in the hope that it will be useful, |
12 | This program is distributed in the hope that it will be useful, but |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
12 | GNU General Public License for more details. |
15 | Public License for more details. |
13 | |
16 | |
14 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License along |
15 | along with this program; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
16 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | |
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20 | Additional permission under GNU GPL version 3 section 7 |
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21 | |
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22 | If you modify this Program, or any covered work, by linking or |
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23 | combining it with the OpenSSL project's OpenSSL library (or a modified |
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24 | version of that library), containing parts covered by the terms of the |
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25 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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26 | additional permission to convey the resulting work. Corresponding |
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27 | Source for a non-source form of such a combination shall include the |
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28 | source code for the parts of OpenSSL used as well as that of the |
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29 | covered work. |
17 | */ |
30 | */ |
18 | |
31 | |
19 | #include "config.h" |
32 | #include "config.h" |
20 | |
33 | |
21 | #include <arpa/inet.h> |
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22 | #include <netdb.h> |
34 | #include <netdb.h> |
23 | |
35 | |
24 | #include "gettext.h" |
36 | #include "gettext.h" |
25 | |
37 | |
26 | #include "sockinfo.h" |
38 | #include "sockinfo.h" |
27 | #include "slog.h" |
39 | #include "slog.h" |
28 | |
40 | |
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41 | #include <cstring> |
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42 | #include <cstdio> |
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43 | |
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44 | // all ipv4-based protocols |
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45 | #define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4) |
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46 | |
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47 | void |
29 | void sockinfo::set (const sockaddr_in *sa, u8 prot_) |
48 | sockinfo::set (const sockaddr_in *sa, u8 prot_) |
30 | { |
49 | { |
31 | host = sa->sin_addr.s_addr; |
50 | host = sa->sin_addr.s_addr; |
32 | port = prot_ == PROT_IPv4 ? 0 : sa->sin_port; |
51 | port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port; |
33 | prot = prot_; |
52 | prot = prot_; |
34 | } |
53 | } |
35 | |
54 | |
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55 | void |
36 | void sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
56 | sockinfo::set (const char *hostname, u16 port_, u8 prot_) |
37 | { |
57 | { |
38 | prot = prot_; |
58 | prot = prot_; |
39 | host = 0; |
59 | host = 0; |
40 | port = htons (port_); |
60 | port = htons (port_); |
41 | |
61 | |
42 | if (prot & (PROT_UDPv4 | PROT_TCPv4 | PROT_IPv4) |
62 | if (prot & PROTv4 |
43 | && hostname) |
63 | && hostname) |
44 | { |
64 | { |
45 | struct hostent *he = gethostbyname (hostname); |
65 | struct hostent *he = gethostbyname (hostname); |
46 | |
66 | |
47 | if (he |
67 | if (he |
… | |
… | |
56 | } |
76 | } |
57 | |
77 | |
58 | void |
78 | void |
59 | sockinfo::set (const conf_node *conf, u8 prot_) |
79 | sockinfo::set (const conf_node *conf, u8 prot_) |
60 | { |
80 | { |
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81 | if (prot_ == PROT_DNSv4) |
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82 | { |
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83 | host = htonl (conf->id); port = 0; prot = prot_; |
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84 | } |
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85 | else |
61 | set (conf->hostname, |
86 | set (conf->hostname, |
62 | prot_ == PROT_UDPv4 ? conf->udp_port |
87 | prot_ == PROT_UDPv4 ? conf->udp_port |
63 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
88 | : prot_ == PROT_TCPv4 ? conf->tcp_port |
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89 | : prot_ == PROT_DNSv4 ? conf->dns_port |
64 | : 0, |
90 | : 0, |
65 | prot_); |
91 | prot_); |
66 | } |
92 | } |
67 | |
93 | |
68 | const sockaddr * |
94 | const sockaddr * |
69 | sockinfo::sav4() const |
95 | sockinfo::sav4() const |
70 | { |
96 | { |
… | |
… | |
102 | sockinfo::supported_protocols (conf_node *conf) |
128 | sockinfo::supported_protocols (conf_node *conf) |
103 | { |
129 | { |
104 | u8 protocols = prot; |
130 | u8 protocols = prot; |
105 | |
131 | |
106 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
132 | if (prot & (PROT_UDPv4 | PROT_TCPv4)) |
107 | protocols |= PROT_IPv4; |
133 | protocols |= PROT_IPv4 | PROT_ICMPv4; |
108 | |
134 | |
109 | if (conf |
135 | if (conf |
110 | && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
136 | && prot & PROTv4 |
111 | && conf->protocols & PROT_UDPv4 |
137 | && conf->protocols & PROT_UDPv4 |
112 | && conf->udp_port) |
138 | && conf->udp_port) |
113 | protocols |= PROT_UDPv4; |
139 | protocols |= PROT_UDPv4; |
114 | |
140 | |
115 | if (conf |
141 | if (conf |
116 | && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
142 | && prot & PROTv4 |
117 | && conf->protocols & PROT_TCPv4 |
143 | && conf->protocols & PROT_TCPv4 |
118 | && conf->tcp_port) |
144 | && conf->tcp_port) |
119 | protocols |= PROT_TCPv4; |
145 | protocols |= PROT_TCPv4; |
120 | |
146 | |
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147 | if (conf |
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148 | && prot & PROTv4 |
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149 | && conf->protocols & PROT_DNSv4 |
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150 | && conf->dns_port) |
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151 | protocols |= PROT_DNSv4; |
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152 | |
121 | return protocols; |
153 | return protocols; |
122 | } |
154 | } |
123 | |
155 | |
124 | bool |
156 | bool |
125 | sockinfo::upgrade_protocol (u8 prot_, conf_node *conf) |
157 | sockinfo::upgrade_protocol (u8 prot_, conf_node *conf) |
126 | { |
158 | { |
127 | if (prot_ == prot) |
159 | if (prot_ == prot) |
128 | return true; |
160 | return true; |
129 | |
161 | |
130 | if (prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4) |
162 | if (prot & PROTv4 |
131 | && prot_ & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4)) |
163 | && prot_ & PROTv4) |
132 | { |
164 | { |
133 | if (prot_ & PROT_IPv4) |
165 | if (prot_ & (PROT_IPv4 | PROT_ICMPv4)) |
134 | { |
166 | { |
135 | prot = prot_; |
167 | prot = prot_; |
136 | port = 0; |
168 | port = 0; |
137 | return true; |
169 | return true; |
138 | } |
170 | } |