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Minor lpeer refactoring

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- Packets are now dispatched based on a packet function handler map which is passed to laikaS_newPeer()
This commit is contained in:
CPunch
2022-01-30 19:10:10 -06:00
parent 1630f6277f
commit 282516797e
7 changed files with 67 additions and 62 deletions
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4
lib/include/lconfig.h
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@@ -6,8 +6,8 @@
#define LAIKA_VERSION_MINOR 0
/* keys */
#define LAIKA_PUBKEY "997d026d1c65deb6c30468525132be4ea44116d6f194c142347b67ee73d18814"
#define LAIKA_PRIVKEY "1dbd33962f1e170d1e745c6d3e19175049b5616822fac2fa3535d7477957a841"
#define LAIKA_PUBKEY "b507a9c8bc8f2c61ea019122311b64361d034ba2b6299a11628a2608ef7f4137"
#define LAIKA_PRIVKEY "4fefc9c4dba37f569432d091497b2c0e931ce78be945328e2ba57674969a3539"
#endif

3
lib/include/lpacket.h
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@@ -14,6 +14,7 @@ enum {
* uint8_t laikaMagic[LAIKA_MAGICLEN];
* uint8_t majorVer;
* uint8_t minorVer;
* uint8_t peerType;
* uint8_t encNonce[LAIKAENC_SIZE(LAIKA_NONCESIZE)]; -- encrypted using shared pubKey
* uint8_t pubKey[crypto_box_PUBLICKEYBYTES]; -- freshly generated pubKey to encrypt decrypted nonce with
*/
@@ -27,6 +28,8 @@ enum {
* uint8_t pktID;
* uint16_t pktSize;
*/
LAIKAPKT_CHALLENGE_REQ,
LAIKAPKT_CHALLENGE_RES,
LAIKAPKT_MAXNONE
};

13
lib/include/lpeer.h
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@@ -13,22 +13,25 @@ typedef enum {
PEER_AUTH /* authorized peers can send commands to cnc */
} PEERTYPE;
struct sLaika_peer;
typedef void (*PeerPktHandler)(struct sLaika_peer *peer, LAIKAPKT_SIZE sz, void *uData);
struct sLaika_peer {
struct sLaika_socket sock; /* DO NOT MOVE THIS. this member HAS TO BE FIRST so that typecasting sLaika_peer* to sLaika_sock* works as intended */
uint8_t *priv; /* key to decrypt incoming packets */
uint8_t *pub; /* pub key matching to priv */
uint8_t peerPub[crypto_box_PUBLICKEYBYTES]; /* key to encrypt outgoing packets */
struct sLaika_pollList *pList; /* pollList we're active in */
void (*pktHandler)(struct sLaika_peer *peer, uint8_t id, void *uData);
void *uData; /* data to be passed to pktHandler */
PeerPktHandler *handlers;
LAIKAPKT_SIZE *pktSizeTable; /* const table to pull pkt size data from */
uint8_t *priv; /* key to decrypt incoming packets */
uint8_t *pub; /* pub key matching to priv */
void *uData; /* data to be passed to pktHandler */
LAIKAPKT_SIZE pktSize; /* current pkt size */
LAIKAPKT_ID pktID; /* current pkt ID */
PEERTYPE type;
bool setPollOut; /* is EPOLLOUT/POLLOUT is set on sock's pollfd ? */
};
struct sLaika_peer *laikaS_newPeer(void (*pktHandler)(struct sLaika_peer *peer, LAIKAPKT_ID id, void *uData), LAIKAPKT_SIZE *pktSizeTable, struct sLaika_pollList *pList, void *uData);
struct sLaika_peer *laikaS_newPeer(PeerPktHandler *handlers, LAIKAPKT_SIZE *pktSizeTable, struct sLaika_pollList *pList, void *uData);
void laikaS_freePeer(struct sLaika_peer *peer);
void laikaS_setKeys(struct sLaika_peer *peer, uint8_t *priv, uint8_t *pub);