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20 | */ |
20 | */ |
21 | |
21 | |
22 | #ifndef UTIL_H__ |
22 | #ifndef UTIL_H__ |
23 | #define UTIL_H__ |
23 | #define UTIL_H__ |
24 | |
24 | |
25 | #include <sys/socket.h> |
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26 | #include <netinet/in.h> |
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27 | |
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28 | #include <map> |
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29 | |
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30 | #include "iom.h" |
25 | #include "iom.h" |
31 | #include "device.h" |
26 | #include "device.h" |
32 | |
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33 | #define SOCKADDR sockaddr_in // this is lame, I know |
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34 | |
27 | |
35 | /* |
28 | /* |
36 | * check for an existing vped for this net, and write pid to pidfile |
29 | * check for an existing vped for this net, and write pid to pidfile |
37 | */ |
30 | */ |
38 | extern int write_pidfile (void); |
31 | extern int write_pidfile (void); |
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55 | /* |
48 | /* |
56 | * check wether the given path is an absolute pathname |
49 | * check wether the given path is an absolute pathname |
57 | */ |
50 | */ |
58 | #define ABSOLUTE_PATH(c) ((c)[0] == '/') |
51 | #define ABSOLUTE_PATH(c) ((c)[0] == '/') |
59 | |
52 | |
60 | static inline void |
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61 | id2mac (unsigned int id, void *m) |
53 | extern void id2mac (unsigned int id, void *m); |
62 | { |
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63 | mac &p = *(mac *)m; |
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64 | |
54 | |
65 | p[0] = 0xfe; |
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66 | p[1] = 0xfd; |
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67 | p[2] = 0x80; |
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68 | p[3] = 0x00; |
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69 | p[4] = id >> 8; |
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70 | p[5] = id; |
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71 | } |
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72 | |
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73 | #define mac2id(p) (p[0] & 0x01 ? 0 : (p[4] << 8) | p[5]) |
55 | #define mac2id(p) ((p)[0] & 0x01 ? 0 : ((p)[4] << 8) | (p)[5]) |
74 | |
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75 | struct sockinfo |
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76 | { |
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77 | u32 host; |
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78 | u16 port; |
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79 | |
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80 | void set (const SOCKADDR *sa) |
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81 | { |
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82 | host = sa->sin_addr.s_addr; |
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83 | port = sa->sin_port; |
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84 | } |
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85 | |
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86 | sockinfo() |
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87 | { |
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88 | host = port = 0; |
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89 | } |
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90 | |
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91 | sockinfo(const SOCKADDR &sa) |
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92 | { |
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93 | set (&sa); |
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94 | } |
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95 | |
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96 | sockinfo(const SOCKADDR *sa) |
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97 | { |
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98 | set (sa); |
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99 | } |
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100 | |
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101 | SOCKADDR *sa() |
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102 | { |
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103 | static SOCKADDR sa; |
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104 | |
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105 | sa.sin_family = AF_INET; |
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106 | sa.sin_port = port; |
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107 | sa.sin_addr.s_addr = host; |
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108 | |
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109 | return &sa; |
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110 | } |
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111 | |
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112 | operator const char *(); |
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113 | }; |
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114 | |
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115 | inline bool |
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116 | operator == (const sockinfo &a, const sockinfo &b) |
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117 | { |
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118 | return a.host == b.host && a.port == b.port; |
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119 | } |
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120 | |
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121 | inline bool |
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122 | operator < (const sockinfo &a, const sockinfo &b) |
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123 | { |
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124 | return a.host < b.host |
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125 | || (a.host == b.host && a.port < b.port); |
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126 | } |
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127 | |
56 | |
128 | struct sliding_window { |
57 | struct sliding_window { |
129 | u32 v[(WINDOWSIZE + 31) / 32]; |
58 | u32 v[(WINDOWSIZE + 31) / 32]; |
130 | u32 seq; |
59 | u32 seq; |
131 | |
60 | |
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158 | |
87 | |
159 | u32 s = seqno % WINDOWSIZE; |
88 | u32 s = seqno % WINDOWSIZE; |
160 | u32 *cell = v + (s >> 5); |
89 | u32 *cell = v + (s >> 5); |
161 | u32 mask = 1 << (s & 31); |
90 | u32 mask = 1 << (s & 31); |
162 | |
91 | |
163 | //printf ("received seqno %08lx, seq %08lx, mask %08lx is %08lx\n", seqno, seq, mask, ismask); |
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164 | if (*cell & mask) |
92 | if (*cell & mask) |
165 | { |
93 | { |
166 | slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n" |
94 | slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n" |
167 | "possible replay attack, or just packet duplication"), seqno, seq + 1);//D |
95 | "possible replay attack, or just packet duplication"), seqno, seq + 1);//D |
168 | return false; |
96 | return false; |
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174 | } |
102 | } |
175 | } |
103 | } |
176 | } |
104 | } |
177 | }; |
105 | }; |
178 | |
106 | |
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107 | typedef callback0<const char *> run_script_cb; |
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108 | |
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109 | // run a shell script (or actually an external program). |
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110 | void run_script (const run_script_cb &cb, bool wait); |
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111 | |
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112 | #if ENABLE_HTTP_PROXY |
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113 | u8 *base64_encode (const u8 *data, unsigned int len); |
179 | #endif |
114 | #endif |
180 | |
115 | |
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116 | #endif |
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117 | |