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Merge pull request #282 from emanuele-f/n2n_callbacks

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Add the callbacks API
This commit is contained in:
Luca Deri
2020-06-30 16:36:11 +02:00
committed by GitHub
parent 9dd0387d36 346631ffe8
commit cf65d9ad98
2 changed files with 83 additions and 66 deletions
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include/n2n.h
+35 -2
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@@ -215,6 +215,36 @@ typedef struct n2n_route {
in_addr_t gateway;
} n2n_route_t;
typedef struct n2n_edge n2n_edge_t; /* Opaque, see edge_utils.c */
/* *************************************************** */
typedef enum {
N2N_ACCEPT = 0,
N2N_DROP = 1
} n2n_verdict;
/* *************************************************** */
/* Callbacks allow external programs to attach functions in response to
* N2N events. */
typedef struct n2n_edge_callbacks {
/* The supernode registration has been updated */
void (*sn_registration_updated)(n2n_edge_t *eee, time_t now, const n2n_sock_t *sn);
/* A packet has been received from a peer. N2N_DROP can be returned to
* drop the packet. The packet payload can be modified. */
n2n_verdict (*packet_from_peer)(n2n_edge_t *eee, const n2n_sock_t *peer, uint8_t *payload, uint16_t payload_size);
/* A packet has been received from the TAP interface. N2N_DROP can be
* returned to drop the packet. The packet payload can be modified. */
n2n_verdict (*packet_from_tap)(n2n_edge_t *eee, uint8_t *payload, uint16_t payload_size);
void (*ip_address_changed)(n2n_edge_t *eee, uint32_t old_ip, uint32_t new_ip);
} n2n_edge_callbacks_t;
/* *************************************************** */
typedef struct n2n_edge_conf {
n2n_sn_name_t sn_ip_array[N2N_EDGE_NUM_SUPERNODES];
n2n_route_t *routes; /**< Networks to route through n2n */
@@ -239,8 +269,6 @@ typedef struct n2n_edge_conf {
int mgmt_port;
} n2n_edge_conf_t;
typedef struct n2n_edge n2n_edge_t; /* Opaque, see edge_utils.c */
typedef struct sn_stats
{
size_t errors; /* Number of errors encountered. */
@@ -353,6 +381,11 @@ void edge_term_conf(n2n_edge_conf_t *conf);
/* Public functions */
n2n_edge_t* edge_init(const tuntap_dev *dev, const n2n_edge_conf_t *conf, int *rv);
void edge_term(n2n_edge_t *eee);
void edge_set_callbacks(n2n_edge_t *eee, const n2n_edge_callbacks_t *callbacks);
void edge_set_userdata(n2n_edge_t *eee, void *user_data);
void* edge_get_userdata(n2n_edge_t *eee);
void edge_send_packet2net(n2n_edge_t *eee, uint8_t *tap_pkt, size_t len);
void edge_read_from_tap(n2n_edge_t *eee);
int run_edge_loop(n2n_edge_t *eee, int *keep_running);
int quick_edge_init(char *device_name, char *community_name,
char *encrypt_key, char *device_mac,