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all states covered, needs double-check of state machine

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This commit is contained in:
matthias.ringwald 2011-06-20 21:03:40 +00:00
parent ae280e7320
commit 552d92a164
2 changed files with 34 additions and 21 deletions
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48
src/l2cap.c
View File

@ -260,6 +260,11 @@ void l2cap_run(void){
free (channel);
break;
case L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_ACCEPT:
l2cap_send_signaling_packet(channel->handle, CONNECTION_RESPONSE, channel->sig_id, channel->local_cid, channel->remote_cid, 0, 0);
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_OR_SEND_CONFIG_REQ;
break;
case L2CAP_STATE_WILL_SEND_CONNECTION_REQUEST:
// success, start l2cap handshake
channel->sig_id = l2cap_next_sig_id();
@ -277,7 +282,24 @@ void l2cap_run(void){
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_CONFIG_REQ;
break;
case L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_WILL_SEND_CONFIG_REQ_RSP:
l2cap_send_signaling_packet(channel->handle, CONFIGURE_RESPONSE, channel->sig_id, channel->remote_cid, 0, 0, 0, NULL);
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP;
break;
case L2CAP_STATE_WILL_SEND_CONFIG_REQ_RSP:
l2cap_send_signaling_packet(channel->handle, CONFIGURE_RESPONSE, channel->sig_id, channel->remote_cid, 0, 0, 0, NULL);
channel->state = L2CAP_STATE_OPEN;
l2cap_emit_channel_opened(channel, 0); // success
l2cap_emit_credits(channel, 1);
break;
case L2CAP_STATE_WILL_SEND_CONFIG_REQ_AND_CONFIG_REQ_RSP:
l2cap_send_signaling_packet(channel->handle, CONFIGURE_RESPONSE, channel->sig_id, channel->remote_cid, 0, 0, 0, NULL);
channel->state = L2CAP_STATE_WILL_SEND_CONFIG_REQ;
break;
case L2CAP_STATE_WILL_SEND_CONFIG_REQ:
channel->sig_id = l2cap_next_sig_id();
config_options[0] = 1; // MTU
config_options[1] = 2; // len param
@ -285,7 +307,7 @@ void l2cap_run(void){
l2cap_send_signaling_packet(channel->handle, CONFIGURE_REQUEST, channel->sig_id, channel->remote_cid, 0, 4, &config_options);
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP;
break;
case L2CAP_STATE_WILL_SEND_DISCONNECT_RESPONSE:
l2cap_send_signaling_packet( channel->handle, DISCONNECTION_RESPONSE, channel->sig_id, channel->local_cid, channel->remote_cid);
l2cap_finialize_channel_close(channel);
@ -526,19 +548,10 @@ void l2cap_accept_connection_internal(uint16_t local_cid){
return;
}
// accept connection
l2cap_send_signaling_packet(channel->handle, CONNECTION_RESPONSE, channel->sig_id, channel->local_cid, channel->remote_cid, 0, 0);
channel->state = L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_ACCEPT;
// set real sig and state and start config
channel->sig_id = l2cap_next_sig_id();
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_CONFIG_REQ;
uint8_t config_options[4];
config_options[0] = 1; // MTU
config_options[1] = 2; // len param
bt_store_16( (uint8_t*)&config_options, 2, channel->local_mtu);
l2cap_send_signaling_packet(channel->handle, CONFIGURE_REQUEST, channel->sig_id, channel->remote_cid, 0, 4, &config_options);
// log_dbg("new state %u\n", channel->state);
// process
l2cap_run();
}
void l2cap_decline_connection_internal(uint16_t local_cid, uint8_t reason){
@ -567,8 +580,7 @@ void l2cap_signaling_handle_configure_request(l2cap_channel_t *channel, uint8_t
pos += length;
}
uint8_t identifier = command[L2CAP_SIGNALING_COMMAND_SIGID_OFFSET];
// send back OK
l2cap_send_signaling_packet(channel->handle, CONFIGURE_RESPONSE, identifier, channel->remote_cid, 0, 0, 0, NULL);
channel->sig_id = command[L2CAP_SIGNALING_COMMAND_SIGID_OFFSET];
}
void l2cap_signaling_handler_channel(l2cap_channel_t *channel, uint8_t *command){
@ -650,7 +662,7 @@ void l2cap_signaling_handler_channel(l2cap_channel_t *channel, uint8_t *command)
break;
case CONFIGURE_REQUEST:
l2cap_signaling_handle_configure_request(channel, command);
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP;
channel->state = L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_WILL_SEND_CONFIG_REQ_RSP;
break;
case DISCONNECTION_REQUEST:
l2cap_handle_disconnect_request(channel, identifier);
@ -665,9 +677,7 @@ void l2cap_signaling_handler_channel(l2cap_channel_t *channel, uint8_t *command)
switch (code) {
case CONFIGURE_REQUEST:
l2cap_signaling_handle_configure_request(channel, command);
channel->state = L2CAP_STATE_OPEN;
l2cap_emit_channel_opened(channel, 0); // success
l2cap_emit_credits(channel, 1);
channel->state = L2CAP_STATE_WILL_SEND_CONFIG_REQ_RSP;
break;
case DISCONNECTION_REQUEST:
l2cap_handle_disconnect_request(channel, identifier);

7
src/l2cap.h
View File

@ -56,16 +56,19 @@ typedef enum {
L2CAP_STATE_WAIT_CONNECT_RSP, // from peer
L2CAP_STATE_WAIT_CONFIG_REQ_OR_SEND_CONFIG_REQ,
L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_CONFIG_REQ,
L2CAP_STATE_WAIT_CONFIG_REQ_RSP_OR_WILL_SEND_CONFIG_REQ_RSP,
L2CAP_STATE_WAIT_CONFIG_REQ_RSP,
L2CAP_STATE_WAIT_CONFIG_REQ,
L2CAP_STATE_OPEN,
L2CAP_STATE_WAIT_DISCONNECT, // from application
L2CAP_STATE_WILL_SEND_CONNECTION_REQUEST,
L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_DECLINE,
L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_ACCEPT,
L2CAP_STATE_WILL_SEND_CONFIG_REQ,
L2CAP_STATE_WILL_SEND_CONFIG_REQ_RSP,
L2CAP_STATE_WILL_SEND_CONFIG_REQ_AND_CONFIG_REQ_RSP,
L2CAP_STATE_WILL_SEND_DISCONNECT_REQUEST,
L2CAP_STATE_WILL_SEND_DISCONNECT_RESPONSE,
L2CAP_STATE_WILL_SEND_CONNECTION_RESPONSE_DECLINE,
} L2CAP_STATE;
// info regarding an actual coneection