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14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
16 | |
16 | |
17 | 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 |
18 | along with gvpe; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
20 | */ |
20 | */ |
21 | |
21 | |
22 | #ifndef GLOBAL_H__ |
22 | #ifndef GLOBAL_H__ |
23 | #define GLOBAL_H__ |
23 | #define GLOBAL_H__ |
24 | |
24 | |
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47 | #define CIPHER ENABLE_CIPHER () |
47 | #define CIPHER ENABLE_CIPHER () |
48 | #define CIPHER_KEYLEN (EVP_CIPHER_key_length (CIPHER)) |
48 | #define CIPHER_KEYLEN (EVP_CIPHER_key_length (CIPHER)) |
49 | #define DIGEST ENABLE_DIGEST () |
49 | #define DIGEST ENABLE_DIGEST () |
50 | #define HMAC_KEYLEN (256 >> 3) // number of bits used for the HMAC key (also change CHG_HMAC_KEY) |
50 | #define HMAC_KEYLEN (256 >> 3) // number of bits used for the HMAC key (also change CHG_HMAC_KEY) |
51 | |
51 | |
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52 | #define WINDOWSIZE 512 // sliding window size |
52 | #define MAX_SEQNO 0xfffffff0U |
53 | #define MAX_SEQNO (0xfffffff0U - WINDOWSIZE * 8) |
53 | |
54 | |
54 | #define CHG_SEQNO 0 // where the seqno starts within the rsa challenge |
55 | #define CHG_SEQNO 0 // where the seqno starts within the rsa challenge |
55 | #define CHG_CIPHER_KEY 4 // where the key starts within the rsa challenge |
56 | #define CHG_CIPHER_KEY 4 // where the key starts within the rsa challenge |
56 | #define CHG_HMAC_KEY 86 // where the key starts within the rsa challenge (256 bits at the end!) |
57 | #define CHG_HMAC_KEY 86 // where the key starts within the rsa challenge (256 bits at the end!) |
57 | |
58 | |
58 | // hdr seq len hmac MAC MAC |
59 | // hdr seq len hmac MAC MAC |
59 | #define VPE_OVERHEAD (4 + 4 + 4 + RAND_SIZE + HMACLENGTH - 6 - 6) |
60 | #define VPE_OVERHEAD (4 + 4 + 4 + RAND_SIZE + HMACLENGTH - 6 - 6) |
60 | #define IP_OVERHEAD 20 // size of a (normal) ip header |
61 | #define IP_OVERHEAD 20 // size of a (normal) ip header |
61 | #define GRE_OVERHEAD (IP_OVERHEAD + 4) |
62 | #define GRE_OVERHEAD (IP_OVERHEAD + 4) |
62 | #define ICMP_OVERHEAD (IP_OVERHEAD + 4) |
63 | #define ICMP_OVERHEAD (IP_OVERHEAD + 4) |
63 | #define UDP_OVERHEAD (IP_OVERHEAD + 20) // size of a (normal) ip + udp header (wrong, but don't care) |
64 | #define UDP_OVERHEAD (IP_OVERHEAD + 20) // size of a (normal) ip + udp header (wrong, but don't care) |
64 | #define TCP_OVERHEAD (IP_OVERHEAD + 22) // size of a (normal) ip + tcp header + packetlength |
65 | #define TCP_OVERHEAD (IP_OVERHEAD + 22) // size of a (normal) ip + tcp header + packetlength |
65 | #define MAX_OVERHEAD UDP_OVERHEAD // the max. overhead of any protocol (ok, tcp doesn't count) |
66 | #define MAX_OVERHEAD UDP_OVERHEAD // the max. overhead of any protocol (ok, tcp doesn't count) |
66 | #define ETH_OVERHEAD 14 // the size of an ethernet header |
67 | #define ETH_OVERHEAD 14 // the size of an ethernet header |
67 | #define MAXSIZE (MAX_MTU + VPE_OVERHEAD)// slightly too large, but who cares |
68 | #define MAXSIZE (MAX_MTU + VPE_OVERHEAD) // slightly too large, but who cares |
68 | |
69 | |
69 | #define PKTCACHESIZE 5 // the size of the memory pool for packets |
70 | #define PKTCACHESIZE 16 // the size of the memory pool for packets |
70 | |
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71 | #define QUEUEDEPTH 16 // the number of packets that will be queued (should be low) |
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72 | |
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73 | #define WINDOWSIZE 512 // sliding window size |
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74 | |
71 | |
75 | extern char *confbase; // directory in which all config files are |
72 | extern char *confbase; // directory in which all config files are |
76 | extern char *thisnode; // config for current node (TODO: remove) |
73 | extern char *thisnode; // config for current node (TODO: remove) |
77 | |
74 | |
78 | #endif |
75 | #endif |