mirror of
https://github.com/servalproject/serval-dna.git
synced 2024-12-19 05:07:56 +00:00
290 lines
8.8 KiB
C
290 lines
8.8 KiB
C
/*
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Copyright (C) 2012 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SERVALD_CONSTANTS_H
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#define __SERVALD_CONSTANTS_H
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#define NELS(a) (sizeof (a) / sizeof *(a))
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/* Packet format:
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16 bit - Magic value 0x4110
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16 bit - Version number (0001 initially)
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16 bit - Payload length
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16 bit - Cipher method (0000 = clear text)
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Ciphered payload follows:
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(needs to have no predictable data to protect against known plain-text attacks)
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64bit transaction id (random)
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8bit - payload rotation (random, to help protect encryption from cribs)
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Remainder of payload, after correcting for rotation:
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33byte did|subscriber id
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16byte salt
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16byte hash of PIN+salt
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Remainder of packet is interpretted as a series of operations
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8 bit operation:
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00 = get, 01 = set, 02 = delete, 03 = update,
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80 = decline, 81 = okay (+optional result),
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f0 = xfer HLR record
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fe = random padding follows (to help protect cryptography from cribs)
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ff = end of transaction
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get - 8 bit variable value
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*/
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#define SID_SIZE 32 // == crypto_sign_edwards25519sha512batch_PUBLICKEYBYTES
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#define SAS_SIZE 32 // == crypto_sign_edwards25519sha512batch_PUBLICKEYBYTES
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#define DID_MINSIZE 5
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#define DID_MAXSIZE 32
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#define SIDDIDFIELD_LEN (SID_SIZE+1)
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#define PINFIELD_LEN 32
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#define HEADERFIELDS_LEN (2+2+2+2+8+1)
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#define OFS_TRANSIDFIELD (2+2+2+2)
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#define TRANSID_SIZE 8
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#define OFS_ROTATIONFIELD (OFS_TRANSIDFIELD+TRANSID_SIZE)
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#define OFS_SIDDIDFIELD HEADERFIELDS_LEN
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#define OFS_PINFIELD (OFS_SIDDIDFIELD+SIDDIDFIELD_LEN)
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#define OFS_PAYLOAD (OFS_PINFIELD+16+16)
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#define SID_STRLEN (SID_SIZE*2)
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/* Array of variables that can be placed in an MPHLR */
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#define VAR_EOR 0x00
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#define VAR_CREATETIME 0x01
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#define VAR_CREATOR 0x02
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#define VAR_REVISION 0x03
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#define VAR_REVISOR 0x04
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#define VAR_PIN 0x05
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#define VAR_VOICESIG 0x08
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#define VAR_HLRMASTER 0x0f
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#define VAR_NAME 0x10
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#define VAR_DIDS 0x80
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#define VAR_LOCATIONS 0x81
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#define VAR_IEMIS 0x82
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#define VAR_TEMIS 0x83
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#define VAR_CALLS_IN 0x90
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#define VAR_CALLS_MISSED 0x91
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#define VAR_CALLS_OUT 0x92
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#define VAR_SMESSAGES 0xa0
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#define VAR_DID2SUBSCRIBER 0xb0
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#define VAR_HLRBACKUPS 0xf0
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#define VAR_NOTE 0xff
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#define ACTION_GET 0x00
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#define ACTION_SET 0x01
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#define ACTION_DEL 0x02
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#define ACTION_INSERT 0x03
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#define ACTION_DIGITALTELEGRAM 0x04
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#define ACTION_CREATEHLR 0x0f
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#define ACTION_STATS 0x40
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#define ACTION_DONE 0x7e
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#define ACTION_ERROR 0x7f
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#define ACTION_DECLINED 0x80
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#define ACTION_OKAY 0x81
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#define ACTION_DATA 0x82
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#define ACTION_WROTE 0x83
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#define ACTION_XFER 0xf0
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#define ACTION_RECVTTL 0xfd
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#define ACTION_PAD 0xfe
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#define ACTION_EOT 0xff
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#define OVERLAY_MAX_INTERFACES 16
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#define CRYPT_CIPHERED 1
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#define CRYPT_SIGNED 2
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#define CRYPT_PUBLIC 4
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#define OVERLAY_INTERFACE_UNKNOWN 0
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#define OVERLAY_INTERFACE_ETHERNET 1
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#define OVERLAY_INTERFACE_WIFI 2
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#define OVERLAY_INTERFACE_PACKETRADIO 3
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#define OQ_ISOCHRONOUS_VOICE 0
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#define OQ_MESH_MANAGEMENT 1
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#define OQ_ISOCHRONOUS_VIDEO 2
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#define OQ_ORDINARY 3
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#define OQ_OPPORTUNISTIC 4
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#define OQ_MAX 5
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#define OVERLAY_MAX_LOCAL_IDENTITIES 256
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/* Overlay mesh packet codes */
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#define OF_TYPE_BITS 0xf0
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#define OF_TYPE_SELFANNOUNCE 0x10 /* BATMAN style announcement frames */
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#define OF_TYPE_SELFANNOUNCE_ACK 0x20 /* BATMAN style "I saw your announcment" frames */
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#define OF_TYPE_DATA 0x30 /* Ordinary data frame.
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Upto MTU bytes of payload.
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32 bit channel/port indicator for each end.
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*/
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#define OF_TYPE_DATA_VOICE 0x40 /* Voice data frame.
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Limited to 255 bytes of payload.
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1 byte channel/port indicator for each end */
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#define OF_TYPE_RHIZOME_ADVERT 0x50 /* Advertisment of file availability via Rhizome */
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#define OF_TYPE_PLEASEEXPLAIN 0x60 /* Request for resolution of an abbreviated address */
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#define OF_TYPE_NODEANNOUNCE 0x70
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#define OF_TYPE_IDENTITYENQUIRY 0x80
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#define OF_TYPE_RESERVED_09 0x90
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#define OF_TYPE_RESERVED_0a 0xa0
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#define OF_TYPE_RESERVED_0b 0xb0
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#define OF_TYPE_RESERVED_0c 0xc0
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#define OF_TYPE_RESERVED_0d 0xd0
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#define OF_TYPE_EXTENDED12 0xe0 /* modifier bits and next byte provide 12 bits extended format
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(for future expansion, just allows us to skip the frame) */
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#define OF_TYPE_EXTENDED20 0xf0 /* modifier bits and next 2 bytes provide 20 bits extended format
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(for future expansion, just allows us to skip the frame) */
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/* Flags used to control the interpretation of the resolved type field */
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#define OF_TYPE_FLAG_BITS 0xf0000000
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#define OF_TYPE_FLAG_NORMAL 0x0
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#define OF_TYPE_FLAG_E12 0x10000000
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#define OF_TYPE_FLAG_E20 0x20000000
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/* Modifiers that indicate the disposition of the frame */
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#define OF_MODIFIER_BITS 0x0f
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/* Crypto/security options */
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#define OF_CRYPTO_BITS 0x0c
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#define OF_CRYPTO_NONE 0x00
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#define OF_CRYPTO_CIPHERED 0x04 /* Encrypted frame */
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#define OF_CRYPTO_SIGNED 0x08 /* signed frame */
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/* The following was previously considered, but is not being implemented at this
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time.
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#define OF_CRYPTO_PARANOID 0x0c Encrypted and digitally signed frame, with final destination address also encrypted. */
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/* QOS packet queue bits */
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#define OF_QUEUE_BITS 0x03
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#define RFS_PLUS250 0xfa
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#define RFS_PLUS456 0xfb
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#define RFS_PLUS762 0xfc
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#define RFS_PLUS1018 0xfd
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#define RFS_PLUS1274 0xfe
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#define RFS_3BYTE 0xff
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#define COMPUTE_RFS_LENGTH -1
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/* Keep track of last 32 observations of a node.
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Hopefully this is enough, if not, we will increase.
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To keep the requirement down we will collate contigious neighbour observations on each interface.
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For node observations we can just replace old observations with new ones.
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*/
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#define OVERLAY_MAX_OBSERVATIONS 32
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/* bitmask values for monitor_tell_clients */
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#define MONITOR_VOMP (1<<0)
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#define MONITOR_RHIZOME (1<<1)
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#define MONITOR_PEERS (1<<2)
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#define MONITOR_DNAHELPER (1<<3)
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#define MAX_SIGNATURES 16
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#define IDENTITY_VERIFIED (1<<0)
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#define IDENTITY_VERIFIEDBYME (1<<1)
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#define IDENTITY_NOTVERIFIED (1<<2)
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/* The value below is for caching negative results */
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#define IDENTITY_UNKNOWN (1<<3)
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#define MDP_PORT_ECHO 0x00000007
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#define MDP_PORT_KEYMAPREQUEST 0x10000001
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#define MDP_PORT_VOMP 0x10000002
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#define MDP_PORT_DNALOOKUP 0x10000003
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#define MDP_PORT_NOREPLY 0x10000000
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#define MDP_PORT_DIRECTORY 10
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#define MDP_TYPE_MASK 0xff
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#define MDP_FLAG_MASK 0xff00
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#define MDP_FORCE 0x0100
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#define MDP_NOCRYPT 0x0200
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#define MDP_NOSIGN 0x0400
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#define MDP_MTU 2000
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#define MDP_TX 1
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#define MDP_BIND 3
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#define MDP_ERROR 4
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#define MDP_GETADDRS 5
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#define MDP_ADDRLIST 6
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// These are back-compatible with the old values of 'mode' when it was 'selfP'
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#define MDP_ADDRLIST_MODE_ROUTABLE_PEERS 0
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#define MDP_ADDRLIST_MODE_SELF 1
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#define MDP_ADDRLIST_MODE_ALL_PEERS 2
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/* 59*32 < (MDP_MTU-100), so up to 59 SIDs in a single reply.
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Multiple replies can be used to respond with more. */
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#define MDP_MAX_SID_REQUEST 59
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/* Maximum amount of audio to cram into a VoMP audio packet.
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More lets us include preemptive retransmissions.
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Less reduces the chance of packets getting lost, and reduces
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the bandwidth used. */
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#define VOMP_STUFF_BYTES 800
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#define MAX_AUDIO_BYTES 1024
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#define MDP_NODEINFO 8
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#define MDP_GOODBYE 9
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#define MDP_AWAITREPLY 9999
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/* max number of recent samples to cram into a VoMP frame as well as the current
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frame of audio (preemptive audio retransmission) */
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#define VOMP_MAX_RECENT_SAMPLES 2
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#define VOMP_CODEC_NONE 0x00
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#define VOMP_CODEC_CODEC2_2400 0x01
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#define VOMP_CODEC_CODEC2_1400 0x02
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#define VOMP_CODEC_GSMHALF 0x03
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#define VOMP_CODEC_GSMFULL 0x04
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#define VOMP_CODEC_16SIGNED 0x05
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#define VOMP_CODEC_8ULAW 0x06
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#define VOMP_CODEC_8ALAW 0x07
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#define VOMP_CODEC_PCM 0x08
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#define VOMP_CODEC_DTMF 0x80
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#define VOMP_CODEC_ENGAGED 0x81
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#define VOMP_CODEC_ONHOLD 0x82
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#define CODEC_FLAGS_LENGTH 32
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/* in milliseconds of inactivity */
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// 20 seconds to start ringing
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#define VOMP_CALL_DIAL_TIMEOUT 5000
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// 60 seconds to answer
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#define VOMP_CALL_RING_TIMEOUT 60000
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// 2 minutes of zero network traffic
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#define VOMP_CALL_NETWORK_TIMEOUT 120000
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// force state packet interval
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#define VOMP_CALL_STATUS_INTERVAL 1000
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#define DEFAULT_MONITOR_SOCKET_NAME "org.servalproject.servald.monitor.socket"
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#define DEFAULT_MDP_SOCKET_NAME "org.servalproject.servald.mdp.socket"
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// flags for address types
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#define TYPE_NONE 0
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#define TYPE_BROADCAST 1
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#define TYPE_SUBSCRIBER 2
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#define TYPE_TOO_SHORT 3
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#endif // __SERVALD_CONSTANTS_H
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