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l2cap: introduce l2cap_config_option_type_t

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This commit is contained in:
Matthias Ringwald 2017-07-25 14:22:40 +02:00
parent 3e64cb4412
commit 671fb338cc
2 changed files with 28 additions and 6 deletions
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22
src/bluetooth.h
View File

@ -129,6 +129,28 @@ typedef enum {
L2CAP_SUPERVISORY_FUNCTION_SREJ_SELECTIVE_REJECT
} l2cap_supervisory_function_t;
/**
* @brief L2CAP Information Types used in Information Request & Response
*/
typedef enum {
L2CAP_INFO_TYPE_CONNECTIONLESS_MTU = 1,
L2CAP_INFO_TYPE_EXTENDED_FEATURES_SUPPORTED,
L2CAP_INFO_TYPE_FIXED_CHANNELS_SUPPORTED,
} l2cap_info_type_t;
/**
* @brief L2CAP Configuration Option Types used in Configurateion Request & Response
*/
typedef enum {
L2CAP_CONFIG_OPTION_TYPE_MAX_TRANSMISSION_UNIT = 1,
L2CAP_CONFIG_OPTION_TYPE_FLUSH_TIMEOUT,
L2CAP_CONFIG_OPTION_TYPE_QUALITY_OF_SERVICE,
L2CAP_CONFIG_OPTION_TYPE_RETRANSMISSION_AND_FLOW_CONTROL,
L2CAP_CONFIG_OPTION_TYPE_FRAME_CHECK_SEQUENCE,
L2CAP_CONFIG_OPTION_TYPE_EXTENDED_FLOW_SPECIFICATION,
L2CAP_CONFIG_OPTION_TYPE_EXTENDED_WINDOW_SIZE,
} l2cap_config_option_type_t;
/**
* HCI Transport
*/

12
src/l2cap.c
View File

@ -2088,7 +2088,7 @@ static void l2cap_signaling_handle_configure_request(l2cap_channel_t *channel, u
pos++;
uint8_t length = command[pos++];
// MTU { type(8): 1, len(8):2, MTU(16) }
if (option_type == 1 && length == 2){
if (option_type == L2CAP_CONFIG_OPTION_TYPE_MAX_TRANSMISSION_UNIT && length == 2){
channel->remote_mtu = little_endian_read_16(command, pos);
log_info("Remote MTU %u", channel->remote_mtu);
if (channel->remote_mtu > l2cap_max_mtu()){
@ -2098,14 +2098,14 @@ static void l2cap_signaling_handle_configure_request(l2cap_channel_t *channel, u
channelStateVarSetFlag(channel, L2CAP_CHANNEL_STATE_VAR_SEND_CONF_RSP_MTU);
}
// Flush timeout { type(8):2, len(8): 2, Flush Timeout(16)}
if (option_type == 2 && length == 2){
if (option_type == L2CAP_CONFIG_OPTION_TYPE_FLUSH_TIMEOUT && length == 2){
channel->flush_timeout = little_endian_read_16(command, pos);
log_info("Flush timeout: %u ms", channel->flush_timeout);
}
#ifdef ENABLE_L2CAP_ENHANCED_RETRANSMISSION_MODE
// Retransmission and Flow Control Option
if (option_type == 4 && length == 9){
if (option_type == L2CAP_CONFIG_OPTION_TYPE_RETRANSMISSION_AND_FLOW_CONTROL && length == 9){
l2cap_channel_mode_t mode = (l2cap_channel_mode_t) command[pos];
switch(channel->mode){
case L2CAP_CHANNEL_MODE_ENHANCED_RETRANSMISSION:
@ -2150,7 +2150,7 @@ static void l2cap_signaling_handle_configure_request(l2cap_channel_t *channel, u
}
#endif
// check for unknown options
if (option_hint == 0 && (option_type == 0 || option_type >= 0x07)){
if (option_hint == 0 && (option_type < L2CAP_CONFIG_OPTION_TYPE_MAX_TRANSMISSION_UNIT || option_type > L2CAP_CONFIG_OPTION_TYPE_EXTENDED_WINDOW_SIZE)){
log_info("l2cap cid %u, unknown options", channel->local_cid);
channelStateVarSetFlag(channel, L2CAP_CHANNEL_STATE_VAR_SEND_CONF_RSP_INVALID);
}
@ -2171,7 +2171,7 @@ static void l2cap_signaling_handle_configure_response(l2cap_channel_t *channel,
uint8_t length = command[pos++];
// Retransmission and Flow Control Option
if (option_type == 4 && length == 9){
if (option_type == L2CAP_CONFIG_OPTION_TYPE_RETRANSMISSION_AND_FLOW_CONTROL && length == 9){
switch (channel->mode){
case L2CAP_CHANNEL_MODE_ENHANCED_RETRANSMISSION:
if (channel->ertm_mandatory){
@ -2195,7 +2195,7 @@ static void l2cap_signaling_handle_configure_response(l2cap_channel_t *channel,
}
// check for unknown options
if (option_hint == 0 && (option_type == 0 || option_type >= 0x07)){
if (option_hint == 0 && (option_type < L2CAP_CONFIG_OPTION_TYPE_MAX_TRANSMISSION_UNIT || option_type > L2CAP_CONFIG_OPTION_TYPE_EXTENDED_WINDOW_SIZE)){
log_info("l2cap cid %u, unknown options", channel->local_cid);
channelStateVarSetFlag(channel, L2CAP_CHANNEL_STATE_VAR_SEND_CONF_RSP_INVALID);
}