… | |
… | |
71 | } |
71 | } |
72 | |
72 | |
73 | int |
73 | int |
74 | vpn::setup () |
74 | vpn::setup () |
75 | { |
75 | { |
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76 | ipv4_fd = -1; |
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77 | |
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78 | if (THISNODE->protocols & PROT_IPv4 && ::conf.ip_proto) |
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79 | { |
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80 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
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81 | |
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82 | if (ipv4_fd < 0) |
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83 | return -1; |
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84 | |
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85 | sockinfo si (THISNODE, PROT_IPv4); |
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86 | |
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87 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
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88 | { |
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89 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
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90 | exit (1); |
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91 | } |
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92 | |
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93 | #ifdef IP_MTU_DISCOVER |
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94 | // this I really consider a linux bug. I am neither connected |
|
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95 | // nor do I fragment myself. Linux still sets DF and doesn't |
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96 | // fragment for me sometimes. |
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97 | { |
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98 | int oval = IP_PMTUDISC_DONT; |
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99 | setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
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100 | } |
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101 | #endif |
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102 | |
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103 | ipv4_ev_watcher.start (ipv4_fd, POLLIN); |
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104 | } |
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105 | |
76 | udpv4_fd = -1; |
106 | udpv4_fd = -1; |
77 | |
107 | |
78 | if (THISNODE->protocols & PROT_UDPv4) |
108 | if (THISNODE->protocols & PROT_UDPv4 && THISNODE->udp_port) |
79 | { |
109 | { |
80 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
110 | udpv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
81 | |
111 | |
82 | if (udpv4_fd < 0) |
112 | if (udpv4_fd < 0) |
83 | return -1; |
113 | return -1; |
… | |
… | |
107 | #endif |
137 | #endif |
108 | |
138 | |
109 | udpv4_ev_watcher.start (udpv4_fd, POLLIN); |
139 | udpv4_ev_watcher.start (udpv4_fd, POLLIN); |
110 | } |
140 | } |
111 | |
141 | |
112 | ipv4_fd = -1; |
142 | tcpv4_fd = -1; |
113 | if (THISNODE->protocols & PROT_IPv4) |
|
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114 | { |
|
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115 | ipv4_fd = socket (PF_INET, SOCK_RAW, ::conf.ip_proto); |
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116 | |
|
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117 | if (ipv4_fd < 0) |
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118 | return -1; |
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119 | |
|
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120 | sockinfo si (THISNODE, PROT_IPv4); |
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121 | |
|
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122 | if (bind (ipv4_fd, si.sav4 (), si.salenv4 ())) |
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123 | { |
|
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124 | slog (L_ERR, _("can't bind ipv4 socket on %s: %s"), (const char *)si, strerror (errno)); |
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125 | exit (1); |
|
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126 | } |
|
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127 | |
|
|
128 | #ifdef IP_MTU_DISCOVER |
|
|
129 | // this I really consider a linux bug. I am neither connected |
|
|
130 | // nor do I fragment myself. Linux still sets DF and doesn't |
|
|
131 | // fragment for me sometimes. |
|
|
132 | { |
|
|
133 | int oval = IP_PMTUDISC_DONT; |
|
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134 | setsockopt (ipv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
|
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135 | } |
|
|
136 | #endif |
|
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137 | |
|
|
138 | ipv4_ev_watcher.start (ipv4_fd, POLLIN); |
|
|
139 | } |
|
|
140 | |
143 | |
141 | #if ENABLE_TCP |
144 | #if ENABLE_TCP |
142 | if (THISNODE->protocols & PROT_TCPv4) |
145 | if (THISNODE->protocols & PROT_TCPv4 && THISNODE->tcp_port) |
143 | { |
146 | { |
144 | tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
147 | tcpv4_fd = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); |
145 | |
148 | |
146 | if (tcpv4_fd < 0) |
149 | if (tcpv4_fd < 0) |
147 | return -1; |
150 | return -1; |