| … | |
… | |
| 27 | #include <openssl/rsa.h> |
27 | #include <openssl/rsa.h> |
| 28 | |
28 | |
| 29 | #include "gettext.h" |
29 | #include "gettext.h" |
| 30 | |
30 | |
| 31 | #include "slog.h" |
31 | #include "slog.h" |
| 32 | #include "iom.h" |
32 | #include "ev_cpp.h" |
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33 | #include "callback.h" |
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|
34 | |
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35 | typedef ev::ev_tstamp tstamp; |
| 33 | |
36 | |
| 34 | /* |
37 | /* |
| 35 | * check for an existing gvpe for this net, and write pid to pidfile |
38 | * check for an existing gvpe for this net, and write pid to pidfile |
| 36 | */ |
39 | */ |
| 37 | extern int write_pidfile (void); |
40 | extern int write_pidfile (void); |
| … | |
… | |
| 71 | |
74 | |
| 72 | bool recv_ok (u32 seqno) |
75 | bool recv_ok (u32 seqno) |
| 73 | { |
76 | { |
| 74 | if (seqno <= seq - WINDOWSIZE) |
77 | if (seqno <= seq - WINDOWSIZE) |
| 75 | slog (L_ERR, _("received duplicate or outdated packet (received %08lx, expected %08lx)\n" |
78 | slog (L_ERR, _("received duplicate or outdated packet (received %08lx, expected %08lx)\n" |
| 76 | "possible replay attack, or just massive packet reordering"), seqno, seq + 1);//D |
79 | "possible replay attack, or just massive packet reordering"), seqno, seq + 1); |
| 77 | else if (seqno > seq + WINDOWSIZE) |
80 | else if (seqno > seq + WINDOWSIZE * 4) |
| 78 | slog (L_ERR, _("received duplicate or out-of-sync packet (received %08lx, expected %08lx)\n" |
81 | slog (L_ERR, _("received duplicate or out-of-sync packet (received %08lx, expected %08lx)\n" |
| 79 | "possible replay attack, or just massive packet loss"), seqno, seq + 1);//D |
82 | "possible replay attack, or just massive packet loss"), seqno, seq + 1); |
| 80 | else |
83 | else |
| 81 | { |
84 | { |
| 82 | while (seqno > seq) |
85 | while (seqno > seq) |
| 83 | { |
86 | { |
| 84 | seq++; |
87 | seq++; |
| … | |
… | |
| 93 | u32 s = seqno % WINDOWSIZE; |
96 | u32 s = seqno % WINDOWSIZE; |
| 94 | u32 *cell = v + (s >> 5); |
97 | u32 *cell = v + (s >> 5); |
| 95 | u32 mask = 1 << (s & 31); |
98 | u32 mask = 1 << (s & 31); |
| 96 | |
99 | |
| 97 | if (*cell & mask) |
100 | if (*cell & mask) |
| 98 | { |
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|
| 99 | slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n" |
101 | slog (L_ERR, _("received duplicate packet (received %08lx, expected %08lx)\n" |
| 100 | "possible replay attack, or just packet duplication"), seqno, seq + 1);//D |
102 | "possible replay attack, or just packet duplication"), seqno, seq + 1); |
| 101 | return false; |
|
|
| 102 | } |
|
|
| 103 | else |
103 | else |
| 104 | { |
104 | { |
| 105 | *cell |= mask; |
105 | *cell |= mask; |
| 106 | return true; |
106 | return true; |
| 107 | } |
107 | } |
| 108 | } |
108 | } |
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109 | |
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|
110 | return false; |
| 109 | } |
111 | } |
| 110 | }; |
112 | }; |
| 111 | |
113 | |
| 112 | typedef callback0<const char *> run_script_cb; |
114 | typedef callback0<const char *> run_script_cb; |
| 113 | |
115 | |
