/** * (C) 2007-20 - ntop.org and contributors * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not see see * */ /* N2N packet header indicators. */ #define MSG_TYPE_REGISTER 1 #define MSG_TYPE_DEREGISTER 2 #define MSG_TYPE_PACKET 3 #define MSG_TYPE_REGISTER_ACK 4 #define MSG_TYPE_REGISTER_SUPER 5 #define MSG_TYPE_REGISTER_SUPER_ACK 6 #define MSG_TYPE_REGISTER_SUPER_NAK 7 #define MSG_TYPE_FEDERATION 8 #define MSG_TYPE_PEER_INFO 9 #define MSG_TYPE_QUERY_PEER 10 #define MSG_TYPE_MAX_TYPE 10 #define SOCKET_TIMEOUT_INTERVAL_SECS 10 #define REGISTER_SUPER_INTERVAL_DFL 20 /* sec, usually UDP NAT entries in a firewall expire after 30 seconds */ #define IFACE_UPDATE_INTERVAL (30) /* sec. How long it usually takes to get an IP lease. */ #define TRANSOP_TICK_INTERVAL (10) /* sec */ #define PURGE_REGISTRATION_FREQUENCY 30 #define REGISTRATION_TIMEOUT 60 #define SORT_COMMUNITIES_INTERVAL 90 /* sec. until supernode sorts communities' hash list again */ #define ETH_FRAMESIZE 14 #define IP4_SRCOFFSET 12 #define IP4_DSTOFFSET 16 #define IP4_MIN_SIZE 20 #define UDP_SIZE 8 /* parameters for replay protection */ #define TIME_STAMP_FRAME 0x0000001000000000LL /* clocks of different computers are allowed +/- 16 seconds to be off */ #define TIME_STAMP_JITTER 0x0000000027100000LL /* we allow a packet to arrive 160 ms (== 0x27100 us) before another * set to 0x0000000000000000LL if increasing (or equal) time stamps allowed only */ /* parameter for random number generation */ #define RND_RETRIES 1000 /* syscall and inquiring random number from hardware generators might fail, so we will retry */ /* N2N compression indicators. */ /* Compression is disabled by default for outgoing packets if no cli * option is given. All edges are built with decompression support so * they are able to understand each other (this applies to lzo only). */ #define N2N_COMPRESSION_ID_NONE 0 /* default, see edge_init_conf_defaults(...) in edge_utils.c */ #define N2N_COMPRESSION_ID_LZO 1 /* set if '-z1' or '-z' cli option is present, see setOption(...) in edge.c */ #ifdef N2N_HAVE_ZSTD #define N2N_COMPRESSION_ID_ZSTD 2 /* set if '-z2' cli option is present, available only if compiled with zstd lib */ #define ZSTD_COMPRESSION_LEVEL 7 /* 1 (faster) ... 22 (more compression) */ #endif // with the next major packet structure update, make '0' = invalid, and '1' = no compression // '2' = LZO, '3' = ZSTD, ... REVISIT then (also: change all occurences in source). #define N2N_COMPRESSION_ID_BITLEN 3 /* number of bits used for encoding compression id in the uppermost bits of transform_id; will be obsolete as soon as compression gets its own field in the packet. REVISIT then. */ /* Header encryption indicators */ #define HEADER_ENCRYPTION_UNKNOWN 0 #define HEADER_ENCRYPTION_NONE 1 #define HEADER_ENCRYPTION_ENABLED 2 #define DEFAULT_MTU 1290 #define HASH_ADD_PEER(head,add) \ HASH_ADD(hh,head,mac_addr,sizeof(n2n_mac_t),add) #define HASH_FIND_PEER(head,mac,out) \ HASH_FIND(hh,head,mac,sizeof(n2n_mac_t),out) #define N2N_EDGE_SN_HOST_SIZE 48 #define N2N_EDGE_NUM_SUPERNODES 2 #define N2N_EDGE_SUP_ATTEMPTS 3 /* Number of failed attmpts before moving on to next supernode. */ #define N2N_PATHNAME_MAXLEN 256 #define N2N_EDGE_MGMT_PORT 5644 #define N2N_SN_MGMT_PORT 5645 #define N2N_NETMASK_STR_SIZE 16 /* dotted decimal 12 numbers + 3 dots */ #define N2N_MACNAMSIZ 18 /* AA:BB:CC:DD:EE:FF + NULL*/ #define N2N_IF_MODE_SIZE 16 /* static | dhcp */ #define N2N_SN_LPORT_DEFAULT 7654 #define N2N_SN_PKTBUF_SIZE 2048 /* ************************************** */ #define SUPERNODE_IP "127.0.0.1" #define SUPERNODE_PORT 1234 /* ************************************** */ #ifndef max #define max(a, b) ((a < b) ? b : a) #endif #ifndef min #define min(a, b) ((a > b) ? b : a) #endif