/* SPDX-License-Identifier: GPL-2.0 *//* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org> Copyright (C) 2010 Google Inc. Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED.*/ #ifndef __L2CAP_H#define __L2CAP_H #include <linux/unaligned.h>#include <linux/atomic.h> /* L2CAP defaults */#define L2CAP_DEFAULT_MTU 672#define L2CAP_DEFAULT_MIN_MTU 48#define L2CAP_SIG_MTU 48 /* BR/EDR signaling MTU */#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF#define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF#define L2CAP_DEFAULT_TX_WINDOW 63#define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF#define L2CAP_DEFAULT_MAX_TX 3#define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */#define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */#define L2CAP_DEFAULT_MAX_PDU_SIZE 1492 /* Sized for AMP packet */#define L2CAP_DEFAULT_ACK_TO 200#define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF#define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF#define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF#define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */#define L2CAP_LE_MIN_MTU 23#define L2CAP_ECRED_CONN_SCID_MAX 5 #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100)#define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000)#define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000)#define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000)#define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000)#define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000)#define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000)#define L2CAP_WAIT_ACK_POLL_PERIOD msecs_to_jiffies(200)#define L2CAP_WAIT_ACK_TIMEOUT msecs_to_jiffies(10000) /* L2CAP socket address */struct sockaddr_l2 { sa_family_t l2_family; __le16 l2_psm; bdaddr_t l2_bdaddr; __le16 l2_cid; __u8 l2_bdaddr_type;}; /* L2CAP socket options */#define L2CAP_OPTIONS 0x01struct l2cap_options { __u16 omtu; __u16 imtu; __u16 flush_to; __u8 mode; __u8 fcs; __u8 max_tx; __u16 txwin_size;}; #define L2CAP_CONNINFO 0x02struct l2cap_conninfo { __u16 hci_handle; __u8 dev_class[3];}; #define L2CAP_LM 0x03#define L2CAP_LM_MASTER 0x0001#define L2CAP_LM_AUTH 0x0002#define L2CAP_LM_ENCRYPT 0x0004#define L2CAP_LM_TRUSTED 0x0008#define L2CAP_LM_RELIABLE 0x0010#define L2CAP_LM_SECURE 0x0020#define L2CAP_LM_FIPS 0x0040 /* L2CAP command codes */#define L2CAP_COMMAND_REJ 0x01#define L2CAP_CONN_REQ 0x02#define L2CAP_CONN_RSP 0x03#define L2CAP_CONF_REQ 0x04#define L2CAP_CONF_RSP 0x05#define L2CAP_DISCONN_REQ 0x06#define L2CAP_DISCONN_RSP 0x07#define L2CAP_ECHO_REQ 0x08#define L2CAP_ECHO_RSP 0x09#define L2CAP_INFO_REQ 0x0a#define L2CAP_INFO_RSP 0x0b#define L2CAP_CONN_PARAM_UPDATE_REQ 0x12#define L2CAP_CONN_PARAM_UPDATE_RSP 0x13#define L2CAP_LE_CONN_REQ 0x14#define L2CAP_LE_CONN_RSP 0x15#define L2CAP_LE_CREDITS 0x16#define L2CAP_ECRED_CONN_REQ 0x17#define L2CAP_ECRED_CONN_RSP 0x18#define L2CAP_ECRED_RECONF_REQ 0x19#define L2CAP_ECRED_RECONF_RSP 0x1a /* L2CAP extended feature mask */#define L2CAP_FEAT_FLOWCTL 0x00000001#define L2CAP_FEAT_RETRANS 0x00000002#define L2CAP_FEAT_BIDIR_QOS 0x00000004#define L2CAP_FEAT_ERTM 0x00000008#define L2CAP_FEAT_STREAMING 0x00000010#define L2CAP_FEAT_FCS 0x00000020#define L2CAP_FEAT_EXT_FLOW 0x00000040#define L2CAP_FEAT_FIXED_CHAN 0x00000080#define L2CAP_FEAT_EXT_WINDOW 0x00000100#define L2CAP_FEAT_UCD 0x00000200 /* L2CAP checksum option */#define L2CAP_FCS_NONE 0x00#define L2CAP_FCS_CRC16 0x01 /* L2CAP fixed channels */#define L2CAP_FC_SIG_BREDR 0x02#define L2CAP_FC_CONNLESS 0x04#define L2CAP_FC_ATT 0x10#define L2CAP_FC_SIG_LE 0x20#define L2CAP_FC_SMP_LE 0x40#define L2CAP_FC_SMP_BREDR 0x80 /* L2CAP Control Field bit masks */#define L2CAP_CTRL_SAR 0xC000#define L2CAP_CTRL_REQSEQ 0x3F00#define L2CAP_CTRL_TXSEQ 0x007E#define L2CAP_CTRL_SUPERVISE 0x000C #define L2CAP_CTRL_RETRANS 0x0080#define L2CAP_CTRL_FINAL 0x0080#define L2CAP_CTRL_POLL 0x0010#define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ #define L2CAP_CTRL_TXSEQ_SHIFT 1#define L2CAP_CTRL_SUPER_SHIFT 2#define L2CAP_CTRL_POLL_SHIFT 4#define L2CAP_CTRL_FINAL_SHIFT 7#define L2CAP_CTRL_REQSEQ_SHIFT 8#define L2CAP_CTRL_SAR_SHIFT 14 /* L2CAP Extended Control Field bit mask */#define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000#define L2CAP_EXT_CTRL_SAR 0x00030000#define L2CAP_EXT_CTRL_SUPERVISE 0x00030000#define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC #define L2CAP_EXT_CTRL_POLL 0x00040000#define L2CAP_EXT_CTRL_FINAL 0x00000002#define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ #define L2CAP_EXT_CTRL_FINAL_SHIFT 1#define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2#define L2CAP_EXT_CTRL_SAR_SHIFT 16#define L2CAP_EXT_CTRL_SUPER_SHIFT 16#define L2CAP_EXT_CTRL_POLL_SHIFT 18#define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 /* L2CAP Supervisory Function */#define L2CAP_SUPER_RR 0x00#define L2CAP_SUPER_REJ 0x01#define L2CAP_SUPER_RNR 0x02#define L2CAP_SUPER_SREJ 0x03 /* L2CAP Segmentation and Reassembly */#define L2CAP_SAR_UNSEGMENTED 0x00#define L2CAP_SAR_START 0x01#define L2CAP_SAR_END 0x02#define L2CAP_SAR_CONTINUE 0x03 /* L2CAP Command rej. reasons */#define L2CAP_REJ_NOT_UNDERSTOOD 0x0000#define L2CAP_REJ_MTU_EXCEEDED 0x0001#define L2CAP_REJ_INVALID_CID 0x0002 /* L2CAP structures */struct l2cap_hdr { __le16 len; __le16 cid;} __packed;#define L2CAP_LEN_SIZE 2#define L2CAP_HDR_SIZE 4#define L2CAP_ENH_HDR_SIZE 6#define L2CAP_EXT_HDR_SIZE 8 #define L2CAP_FCS_SIZE 2#define L2CAP_SDULEN_SIZE 2#define L2CAP_PSMLEN_SIZE 2#define L2CAP_ENH_CTRL_SIZE 2#define L2CAP_EXT_CTRL_SIZE 4 struct l2cap_cmd_hdr { __u8 code; __u8 ident; __le16 len;} __packed;#define L2CAP_CMD_HDR_SIZE 4 struct l2cap_cmd_rej_unk { __le16 reason;} __packed; struct l2cap_cmd_rej_mtu { __le16 reason; __le16 max_mtu;} __packed; struct l2cap_cmd_rej_cid { __le16 reason; __le16 scid; __le16 dcid;} __packed; struct l2cap_conn_req { __le16 psm; __le16 scid;} __packed; struct l2cap_conn_rsp { __le16 dcid; __le16 scid; __le16 result; __le16 status;} __packed; /* protocol/service multiplexer (PSM) */#define L2CAP_PSM_SDP 0x0001#define L2CAP_PSM_RFCOMM 0x0003#define L2CAP_PSM_3DSP 0x0021#define L2CAP_PSM_IPSP 0x0023 /* 6LoWPAN */ #define L2CAP_PSM_DYN_START 0x1001#define L2CAP_PSM_DYN_END 0xffff#define L2CAP_PSM_AUTO_END 0x10ff#define L2CAP_PSM_LE_DYN_START 0x0080#define L2CAP_PSM_LE_DYN_END 0x00ff /* channel identifier */#define L2CAP_CID_SIGNALING 0x0001#define L2CAP_CID_CONN_LESS 0x0002#define L2CAP_CID_ATT 0x0004#define L2CAP_CID_LE_SIGNALING 0x0005#define L2CAP_CID_SMP 0x0006#define L2CAP_CID_SMP_BREDR 0x0007#define L2CAP_CID_DYN_START 0x0040#define L2CAP_CID_DYN_END 0xffff#define L2CAP_CID_LE_DYN_END 0x007f /* connect/create channel results */#define L2CAP_CR_SUCCESS 0x0000#define L2CAP_CR_PEND 0x0001#define L2CAP_CR_BAD_PSM 0x0002#define L2CAP_CR_SEC_BLOCK 0x0003#define L2CAP_CR_NO_MEM 0x0004#define L2CAP_CR_INVALID_SCID 0x0006#define L2CAP_CR_SCID_IN_USE 0x0007 /* credit based connect results */#define L2CAP_CR_LE_SUCCESS 0x0000#define L2CAP_CR_LE_BAD_PSM 0x0002#define L2CAP_CR_LE_NO_MEM 0x0004#define L2CAP_CR_LE_AUTHENTICATION 0x0005#define L2CAP_CR_LE_AUTHORIZATION 0x0006#define L2CAP_CR_LE_BAD_KEY_SIZE 0x0007#define L2CAP_CR_LE_ENCRYPTION 0x0008#define L2CAP_CR_LE_INVALID_SCID 0x0009#define L2CAP_CR_LE_SCID_IN_USE 0x000A#define L2CAP_CR_LE_UNACCEPT_PARAMS 0x000B#define L2CAP_CR_LE_INVALID_PARAMS 0x000C /* connect/create channel status */#define L2CAP_CS_NO_INFO 0x0000#define L2CAP_CS_AUTHEN_PEND 0x0001#define L2CAP_CS_AUTHOR_PEND 0x0002 struct l2cap_conf_req { __le16 dcid; __le16 flags; __u8 data[];} __packed; struct l2cap_conf_rsp { __le16 scid; __le16 flags; __le16 result; __u8 data[];} __packed; #define L2CAP_CONF_SUCCESS 0x0000#define L2CAP_CONF_UNACCEPT 0x0001#define L2CAP_CONF_REJECT 0x0002#define L2CAP_CONF_UNKNOWN 0x0003#define L2CAP_CONF_PENDING 0x0004#define L2CAP_CONF_EFS_REJECT 0x0005 /* configuration req/rsp continuation flag */#define L2CAP_CONF_FLAG_CONTINUATION 0x0001 struct l2cap_conf_opt { __u8 type; __u8 len; __u8 val[];} __packed;#define L2CAP_CONF_OPT_SIZE 2 #define L2CAP_CONF_HINT 0x80#define L2CAP_CONF_MASK 0x7f #define L2CAP_CONF_MTU 0x01#define L2CAP_CONF_FLUSH_TO 0x02#define L2CAP_CONF_QOS 0x03#define L2CAP_CONF_RFC 0x04#define L2CAP_CONF_FCS 0x05#define L2CAP_CONF_EFS 0x06#define L2CAP_CONF_EWS 0x07 #define L2CAP_CONF_MAX_SIZE 22 struct l2cap_conf_rfc { __u8 mode; __u8 txwin_size; __u8 max_transmit; __le16 retrans_timeout; __le16 monitor_timeout; __le16 max_pdu_size;} __packed; #define L2CAP_MODE_BASIC 0x00#define L2CAP_MODE_RETRANS 0x01#define L2CAP_MODE_FLOWCTL 0x02#define L2CAP_MODE_ERTM 0x03#define L2CAP_MODE_STREAMING 0x04 /* Unlike the above this one doesn't actually map to anything that would * ever be sent over the air. Therefore, use a value that's unlikely to * ever be used in the BR/EDR configuration phase. */#define L2CAP_MODE_LE_FLOWCTL 0x80#define L2CAP_MODE_EXT_FLOWCTL 0x81 struct l2cap_conf_efs { __u8 id; __u8 stype; __le16 msdu; __le32 sdu_itime; __le32 acc_lat; __le32 flush_to;} __packed; #define L2CAP_SERV_NOTRAFIC 0x00#define L2CAP_SERV_BESTEFFORT 0x01#define L2CAP_SERV_GUARANTEED 0x02 #define L2CAP_BESTEFFORT_ID 0x01 struct l2cap_disconn_req { __le16 dcid; __le16 scid;} __packed; struct l2cap_disconn_rsp { __le16 dcid; __le16 scid;} __packed; struct l2cap_info_req { __le16 type;} __packed; struct l2cap_info_rsp { __le16 type; __le16 result; __u8 data[];} __packed; #define L2CAP_MR_SUCCESS 0x0000#define L2CAP_MR_PEND 0x0001#define L2CAP_MR_BAD_ID 0x0002#define L2CAP_MR_SAME_ID 0x0003#define L2CAP_MR_NOT_SUPP 0x0004#define L2CAP_MR_COLLISION 0x0005#define L2CAP_MR_NOT_ALLOWED 0x0006 struct l2cap_move_chan_cfm { __le16 icid; __le16 result;} __packed; #define L2CAP_MC_CONFIRMED 0x0000#define L2CAP_MC_UNCONFIRMED 0x0001 struct l2cap_move_chan_cfm_rsp { __le16 icid;} __packed; /* info type */#define L2CAP_IT_CL_MTU 0x0001#define L2CAP_IT_FEAT_MASK 0x0002#define L2CAP_IT_FIXED_CHAN 0x0003 /* info result */#define L2CAP_IR_SUCCESS 0x0000#define L2CAP_IR_NOTSUPP 0x0001 struct l2cap_conn_param_update_req { __le16 min; __le16 max; __le16 latency; __le16 to_multiplier;} __packed; struct l2cap_conn_param_update_rsp { __le16 result;} __packed; /* Connection Parameters result */#define L2CAP_CONN_PARAM_ACCEPTED 0x0000#define L2CAP_CONN_PARAM_REJECTED 0x0001 struct l2cap_le_conn_req { __le16 psm; __le16 scid; __le16 mtu; __le16 mps; __le16 credits;} __packed; struct l2cap_le_conn_rsp { __le16 dcid; __le16 mtu; __le16 mps; __le16 credits; __le16 result;} __packed; struct l2cap_le_credits { __le16 cid; __le16 credits;} __packed; #define L2CAP_ECRED_MIN_MTU 64#define L2CAP_ECRED_MIN_MPS 64#define L2CAP_ECRED_MAX_CID 5 struct l2cap_ecred_conn_req { /* New members must be added within the struct_group() macro below. */ __struct_group(l2cap_ecred_conn_req_hdr, hdr, __packed, __le16 psm; __le16 mtu; __le16 mps; __le16 credits; ); __le16 scid[];} __packed; struct l2cap_ecred_conn_rsp { /* New members must be added within the struct_group() macro below. */ struct_group_tagged(l2cap_ecred_conn_rsp_hdr, hdr, __le16 mtu; __le16 mps; __le16 credits; __le16 result; ); __le16 dcid[];}; struct l2cap_ecred_reconf_req { __le16 mtu; __le16 mps; __le16 scid[];} __packed; #define L2CAP_RECONF_SUCCESS 0x0000#define L2CAP_RECONF_INVALID_MTU 0x0001#define L2CAP_RECONF_INVALID_MPS 0x0002#define L2CAP_RECONF_INVALID_CID 0x0003#define L2CAP_RECONF_INVALID_PARAMS 0x0004 struct l2cap_ecred_reconf_rsp { __le16 result;} __packed; Lines 1–500 of 988. 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/* SPDX-License-Identifier: GPL-2.0 */ /* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated Copyright (C) 2009-2010 Gustavo F. Padovan <gustavo@padovan.org> Copyright (C) 2010 Google Inc. Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ #ifndef __L2CAP_H #define __L2CAP_H #include <linux/unaligned.h> #include <linux/atomic.h> /* L2CAP defaults */ #define L2CAP_DEFAULT_MTU 672 #define L2CAP_DEFAULT_MIN_MTU 48 #define L2CAP_SIG_MTU 48 /* BR/EDR signaling MTU */ #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF #define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF #define L2CAP_DEFAULT_TX_WINDOW 63 #define L2CAP_DEFAULT_EXT_WINDOW 0x3FFF #define L2CAP_DEFAULT_MAX_TX 3 #define L2CAP_DEFAULT_RETRANS_TO 2000 /* 2 seconds */ #define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */ #define L2CAP_DEFAULT_MAX_PDU_SIZE 1492 /* Sized for AMP packet */ #define L2CAP_DEFAULT_ACK_TO 200 #define L2CAP_DEFAULT_MAX_SDU_SIZE 0xFFFF #define L2CAP_DEFAULT_SDU_ITIME 0xFFFFFFFF #define L2CAP_DEFAULT_ACC_LAT 0xFFFFFFFF #define L2CAP_BREDR_MAX_PAYLOAD 1019 /* 3-DH5 packet */ #define L2CAP_LE_MIN_MTU 23 #define L2CAP_ECRED_CONN_SCID_MAX 5 #define L2CAP_DISC_TIMEOUT msecs_to_jiffies(100) #define L2CAP_DISC_REJ_TIMEOUT msecs_to_jiffies(5000) #define L2CAP_ENC_TIMEOUT msecs_to_jiffies(5000) #define L2CAP_CONN_TIMEOUT msecs_to_jiffies(40000) #define L2CAP_INFO_TIMEOUT msecs_to_jiffies(4000) #define L2CAP_MOVE_TIMEOUT msecs_to_jiffies(4000) #define L2CAP_MOVE_ERTX_TIMEOUT msecs_to_jiffies(60000) #define L2CAP_WAIT_ACK_POLL_PERIOD msecs_to_jiffies(200) #define L2CAP_WAIT_ACK_TIMEOUT msecs_to_jiffies(10000) /* L2CAP socket address */ struct sockaddr_l2 { sa_family_t l2_family; __le16 l2_psm; bdaddr_t l2_bdaddr; __le16 l2_cid; __u8 l2_bdaddr_type; }; /* L2CAP socket options */ #define L2CAP_OPTIONS 0x01 struct l2cap_options { __u16 omtu; __u16 imtu; __u16 flush_to; __u8 mode; __u8 fcs; __u8 max_tx; __u16 txwin_size; }; #define L2CAP_CONNINFO 0x02 struct l2cap_conninfo { __u16 hci_handle; __u8 dev_class[3]; }; #define L2CAP_LM 0x03 #define L2CAP_LM_MASTER 0x0001 #define L2CAP_LM_AUTH 0x0002 #define L2CAP_LM_ENCRYPT 0x0004 #define L2CAP_LM_TRUSTED 0x0008 #define L2CAP_LM_RELIABLE 0x0010 #define L2CAP_LM_SECURE 0x0020 #define L2CAP_LM_FIPS 0x0040 /* L2CAP command codes */ #define L2CAP_COMMAND_REJ 0x01 #define L2CAP_CONN_REQ 0x02 #define L2CAP_CONN_RSP 0x03 #define L2CAP_CONF_REQ 0x04 #define L2CAP_CONF_RSP 0x05 #define L2CAP_DISCONN_REQ 0x06 #define L2CAP_DISCONN_RSP 0x07 #define L2CAP_ECHO_REQ 0x08 #define L2CAP_ECHO_RSP 0x09 #define L2CAP_INFO_REQ 0x0a #define L2CAP_INFO_RSP 0x0b #define L2CAP_CONN_PARAM_UPDATE_REQ 0x12 #define L2CAP_CONN_PARAM_UPDATE_RSP 0x13 #define L2CAP_LE_CONN_REQ 0x14 #define L2CAP_LE_CONN_RSP 0x15 #define L2CAP_LE_CREDITS 0x16 #define L2CAP_ECRED_CONN_REQ 0x17 #define L2CAP_ECRED_CONN_RSP 0x18 #define L2CAP_ECRED_RECONF_REQ 0x19 #define L2CAP_ECRED_RECONF_RSP 0x1a /* L2CAP extended feature mask */ #define L2CAP_FEAT_FLOWCTL 0x00000001 #define L2CAP_FEAT_RETRANS 0x00000002 #define L2CAP_FEAT_BIDIR_QOS 0x00000004 #define L2CAP_FEAT_ERTM 0x00000008 #define L2CAP_FEAT_STREAMING 0x00000010 #define L2CAP_FEAT_FCS 0x00000020 #define L2CAP_FEAT_EXT_FLOW 0x00000040 #define L2CAP_FEAT_FIXED_CHAN 0x00000080 #define L2CAP_FEAT_EXT_WINDOW 0x00000100 #define L2CAP_FEAT_UCD 0x00000200 /* L2CAP checksum option */ #define L2CAP_FCS_NONE 0x00 #define L2CAP_FCS_CRC16 0x01 /* L2CAP fixed channels */ #define L2CAP_FC_SIG_BREDR 0x02 #define L2CAP_FC_CONNLESS 0x04 #define L2CAP_FC_ATT 0x10 #define L2CAP_FC_SIG_LE 0x20 #define L2CAP_FC_SMP_LE 0x40 #define L2CAP_FC_SMP_BREDR 0x80 /* L2CAP Control Field bit masks */ #define L2CAP_CTRL_SAR 0xC000 #define L2CAP_CTRL_REQSEQ 0x3F00 #define L2CAP_CTRL_TXSEQ 0x007E #define L2CAP_CTRL_SUPERVISE 0x000C #define L2CAP_CTRL_RETRANS 0x0080 #define L2CAP_CTRL_FINAL 0x0080 #define L2CAP_CTRL_POLL 0x0010 #define L2CAP_CTRL_FRAME_TYPE 0x0001 /* I- or S-Frame */ #define L2CAP_CTRL_TXSEQ_SHIFT 1 #define L2CAP_CTRL_SUPER_SHIFT 2 #define L2CAP_CTRL_POLL_SHIFT 4 #define L2CAP_CTRL_FINAL_SHIFT 7 #define L2CAP_CTRL_REQSEQ_SHIFT 8 #define L2CAP_CTRL_SAR_SHIFT 14 /* L2CAP Extended Control Field bit mask */ #define L2CAP_EXT_CTRL_TXSEQ 0xFFFC0000 #define L2CAP_EXT_CTRL_SAR 0x00030000 #define L2CAP_EXT_CTRL_SUPERVISE 0x00030000 #define L2CAP_EXT_CTRL_REQSEQ 0x0000FFFC #define L2CAP_EXT_CTRL_POLL 0x00040000 #define L2CAP_EXT_CTRL_FINAL 0x00000002 #define L2CAP_EXT_CTRL_FRAME_TYPE 0x00000001 /* I- or S-Frame */ #define L2CAP_EXT_CTRL_FINAL_SHIFT 1 #define L2CAP_EXT_CTRL_REQSEQ_SHIFT 2 #define L2CAP_EXT_CTRL_SAR_SHIFT 16 #define L2CAP_EXT_CTRL_SUPER_SHIFT 16 #define L2CAP_EXT_CTRL_POLL_SHIFT 18 #define L2CAP_EXT_CTRL_TXSEQ_SHIFT 18 /* L2CAP Supervisory Function */ #define L2CAP_SUPER_RR 0x00 #define L2CAP_SUPER_REJ 0x01 #define L2CAP_SUPER_RNR 0x02 #define L2CAP_SUPER_SREJ 0x03 /* L2CAP Segmentation and Reassembly */ #define L2CAP_SAR_UNSEGMENTED 0x00 #define L2CAP_SAR_START 0x01 #define L2CAP_SAR_END 0x02 #define L2CAP_SAR_CONTINUE 0x03 /* L2CAP Command rej. reasons */ #define L2CAP_REJ_NOT_UNDERSTOOD 0x0000 #define L2CAP_REJ_MTU_EXCEEDED 0x0001 #define L2CAP_REJ_INVALID_CID 0x0002 /* L2CAP structures */ struct l2cap_hdr { __le16 len; __le16 cid; } __packed; #define L2CAP_LEN_SIZE 2 #define L2CAP_HDR_SIZE 4 #define L2CAP_ENH_HDR_SIZE 6 #define L2CAP_EXT_HDR_SIZE 8 #define L2CAP_FCS_SIZE 2 #define L2CAP_SDULEN_SIZE 2 #define L2CAP_PSMLEN_SIZE 2 #define L2CAP_ENH_CTRL_SIZE 2 #define L2CAP_EXT_CTRL_SIZE 4 struct l2cap_cmd_hdr { __u8 code; __u8 ident; __le16 len; } __packed; #define L2CAP_CMD_HDR_SIZE 4 struct l2cap_cmd_rej_unk { __le16 reason; } __packed; struct l2cap_cmd_rej_mtu { __le16 reason; __le16 max_mtu; } __packed; struct l2cap_cmd_rej_cid { __le16 reason; __le16 scid; __le16 dcid; } __packed; struct l2cap_conn_req { __le16 psm; __le16 scid; } __packed; struct l2cap_conn_rsp { __le16 dcid; __le16 scid; __le16 result; __le16 status; } __packed; /* protocol/service multiplexer (PSM) */ #define L2CAP_PSM_SDP 0x0001 #define L2CAP_PSM_RFCOMM 0x0003 #define L2CAP_PSM_3DSP 0x0021 #define L2CAP_PSM_IPSP 0x0023 /* 6LoWPAN */ #define L2CAP_PSM_DYN_START 0x1001 #define L2CAP_PSM_DYN_END 0xffff #define L2CAP_PSM_AUTO_END 0x10ff #define L2CAP_PSM_LE_DYN_START 0x0080 #define L2CAP_PSM_LE_DYN_END 0x00ff /* channel identifier */ #define L2CAP_CID_SIGNALING 0x0001 #define L2CAP_CID_CONN_LESS 0x0002 #define L2CAP_CID_ATT 0x0004 #define L2CAP_CID_LE_SIGNALING 0x0005 #define L2CAP_CID_SMP 0x0006 #define L2CAP_CID_SMP_BREDR 0x0007 #define L2CAP_CID_DYN_START 0x0040 #define L2CAP_CID_DYN_END 0xffff #define L2CAP_CID_LE_DYN_END 0x007f /* connect/create channel results */ #define L2CAP_CR_SUCCESS 0x0000 #define L2CAP_CR_PEND 0x0001 #define L2CAP_CR_BAD_PSM 0x0002 #define L2CAP_CR_SEC_BLOCK 0x0003 #define L2CAP_CR_NO_MEM 0x0004 #define L2CAP_CR_INVALID_SCID 0x0006 #define L2CAP_CR_SCID_IN_USE 0x0007 /* credit based connect results */ #define L2CAP_CR_LE_SUCCESS 0x0000 #define L2CAP_CR_LE_BAD_PSM 0x0002 #define L2CAP_CR_LE_NO_MEM 0x0004 #define L2CAP_CR_LE_AUTHENTICATION 0x0005 #define L2CAP_CR_LE_AUTHORIZATION 0x0006 #define L2CAP_CR_LE_BAD_KEY_SIZE 0x0007 #define L2CAP_CR_LE_ENCRYPTION 0x0008 #define L2CAP_CR_LE_INVALID_SCID 0x0009 #define L2CAP_CR_LE_SCID_IN_USE 0x000A #define L2CAP_CR_LE_UNACCEPT_PARAMS 0x000B #define L2CAP_CR_LE_INVALID_PARAMS 0x000C /* connect/create channel status */ #define L2CAP_CS_NO_INFO 0x0000 #define L2CAP_CS_AUTHEN_PEND 0x0001 #define L2CAP_CS_AUTHOR_PEND 0x0002 struct l2cap_conf_req { __le16 dcid; __le16 flags; __u8 data[]; } __packed; struct l2cap_conf_rsp { __le16 scid; __le16 flags; __le16 result; __u8 data[]; } __packed; #define L2CAP_CONF_SUCCESS 0x0000 #define L2CAP_CONF_UNACCEPT 0x0001 #define L2CAP_CONF_REJECT 0x0002 #define L2CAP_CONF_UNKNOWN 0x0003 #define L2CAP_CONF_PENDING 0x0004 #define L2CAP_CONF_EFS_REJECT 0x0005 /* configuration req/rsp continuation flag */ #define L2CAP_CONF_FLAG_CONTINUATION 0x0001 struct l2cap_conf_opt { __u8 type; __u8 len; __u8 val[]; } __packed; #define L2CAP_CONF_OPT_SIZE 2 #define L2CAP_CONF_HINT 0x80 #define L2CAP_CONF_MASK 0x7f #define L2CAP_CONF_MTU 0x01 #define L2CAP_CONF_FLUSH_TO 0x02 #define L2CAP_CONF_QOS 0x03 #define L2CAP_CONF_RFC 0x04 #define L2CAP_CONF_FCS 0x05 #define L2CAP_CONF_EFS 0x06 #define L2CAP_CONF_EWS 0x07 #define L2CAP_CONF_MAX_SIZE 22 struct l2cap_conf_rfc { __u8 mode; __u8 txwin_size; __u8 max_transmit; __le16 retrans_timeout; __le16 monitor_timeout; __le16 max_pdu_size; } __packed; #define L2CAP_MODE_BASIC 0x00 #define L2CAP_MODE_RETRANS 0x01 #define L2CAP_MODE_FLOWCTL 0x02 #define L2CAP_MODE_ERTM 0x03 #define L2CAP_MODE_STREAMING 0x04 /* Unlike the above this one doesn't actually map to anything that would * ever be sent over the air. Therefore, use a value that's unlikely to * ever be used in the BR/EDR configuration phase. */ #define L2CAP_MODE_LE_FLOWCTL 0x80 #define L2CAP_MODE_EXT_FLOWCTL 0x81 struct l2cap_conf_efs { __u8 id; __u8 stype; __le16 msdu; __le32 sdu_itime; __le32 acc_lat; __le32 flush_to; } __packed; #define L2CAP_SERV_NOTRAFIC 0x00 #define L2CAP_SERV_BESTEFFORT 0x01 #define L2CAP_SERV_GUARANTEED 0x02 #define L2CAP_BESTEFFORT_ID 0x01 struct l2cap_disconn_req { __le16 dcid; __le16 scid; } __packed; struct l2cap_disconn_rsp { __le16 dcid; __le16 scid; } __packed; struct l2cap_info_req { __le16 type; } __packed; struct l2cap_info_rsp { __le16 type; __le16 result; __u8 data[]; } __packed; #define L2CAP_MR_SUCCESS 0x0000 #define L2CAP_MR_PEND 0x0001 #define L2CAP_MR_BAD_ID 0x0002 #define L2CAP_MR_SAME_ID 0x0003 #define L2CAP_MR_NOT_SUPP 0x0004 #define L2CAP_MR_COLLISION 0x0005 #define L2CAP_MR_NOT_ALLOWED 0x0006 struct l2cap_move_chan_cfm { __le16 icid; __le16 result; } __packed; #define L2CAP_MC_CONFIRMED 0x0000 #define L2CAP_MC_UNCONFIRMED 0x0001 struct l2cap_move_chan_cfm_rsp { __le16 icid; } __packed; /* info type */ #define L2CAP_IT_CL_MTU 0x0001 #define L2CAP_IT_FEAT_MASK 0x0002 #define L2CAP_IT_FIXED_CHAN 0x0003 /* info result */ #define L2CAP_IR_SUCCESS 0x0000 #define L2CAP_IR_NOTSUPP 0x0001 struct l2cap_conn_param_update_req { __le16 min; __le16 max; __le16 latency; __le16 to_multiplier; } __packed; struct l2cap_conn_param_update_rsp { __le16 result; } __packed; /* Connection Parameters result */ #define L2CAP_CONN_PARAM_ACCEPTED 0x0000 #define L2CAP_CONN_PARAM_REJECTED 0x0001 struct l2cap_le_conn_req { __le16 psm; __le16 scid; __le16 mtu; __le16 mps; __le16 credits; } __packed; struct l2cap_le_conn_rsp { __le16 dcid; __le16 mtu; __le16 mps; __le16 credits; __le16 result; } __packed; struct l2cap_le_credits { __le16 cid; __le16 credits; } __packed; #define L2CAP_ECRED_MIN_MTU 64 #define L2CAP_ECRED_MIN_MPS 64 #define L2CAP_ECRED_MAX_CID 5 struct l2cap_ecred_conn_req { /* New members must be added within the struct_group() macro below. */ __struct_group(l2cap_ecred_conn_req_hdr, hdr, __packed, __le16 psm; __le16 mtu; __le16 mps; __le16 credits; ); __le16 scid[]; } __packed; struct l2cap_ecred_conn_rsp { /* New members must be added within the struct_group() macro below. */ struct_group_tagged(l2cap_ecred_conn_rsp_hdr, hdr, __le16 mtu; __le16 mps; __le16 credits; __le16 result; ); __le16 dcid[]; }; struct l2cap_ecred_reconf_req { __le16 mtu; __le16 mps; __le16 scid[]; } __packed; #define L2CAP_RECONF_SUCCESS 0x0000 #define L2CAP_RECONF_INVALID_MTU 0x0001 #define L2CAP_RECONF_INVALID_MPS 0x0002 #define L2CAP_RECONF_INVALID_CID 0x0003 #define L2CAP_RECONF_INVALID_PARAMS 0x0004 struct l2cap_ecred_reconf_rsp { __le16 result; } __packed;