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https://github.com/FEX-Emu/linux.git
synced 2025-01-11 11:56:48 +00:00
Bluetooth: mgmt: Move command handlers into a table
By moving the command handlers into a table (the index being equal to the opcode) the lookup is made a bit more efficient. Having a struct to describe each handler also paves the way to add more meta-data for each handler, e.g. the minimum message size for the command and allow handling of common tasks like this in a centralized place. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg
parent
6a919082e9
commit
0f4e68cf6e
@ -267,7 +267,8 @@ static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
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return err;
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}
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static int read_version(struct sock *sk)
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static int read_version(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_rp_read_version rp;
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@ -280,7 +281,8 @@ static int read_version(struct sock *sk)
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sizeof(rp));
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}
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static int read_commands(struct sock *sk)
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static int read_commands(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_rp_read_commands *rp;
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u16 num_commands = ARRAY_SIZE(mgmt_commands);
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@ -313,7 +315,8 @@ static int read_commands(struct sock *sk)
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return err;
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}
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static int read_index_list(struct sock *sk)
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static int read_index_list(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_rp_read_index_list *rp;
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struct list_head *p;
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@ -627,7 +630,8 @@ static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
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}
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}
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static int read_controller_info(struct sock *sk, struct hci_dev *hdev)
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static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_rp_read_info rp;
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@ -1689,7 +1693,8 @@ static u8 link_to_mgmt(u8 link_type, u8 addr_type)
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}
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}
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static int get_connections(struct sock *sk, struct hci_dev *hdev)
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static int get_connections(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct mgmt_rp_get_connections *rp;
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struct hci_conn *c;
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@ -2015,9 +2020,9 @@ unlock:
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}
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static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev,
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unsigned char *data, u16 len)
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void *data, u16 len)
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{
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struct mgmt_addr_info *addr = (void *) data;
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struct mgmt_addr_info *addr = data;
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struct pending_cmd *cmd;
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struct hci_conn *conn;
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int err;
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@ -2240,7 +2245,8 @@ failed:
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return err;
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}
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static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev)
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static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len)
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{
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struct pending_cmd *cmd;
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int err;
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@ -2718,6 +2724,53 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
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return 0;
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}
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struct mgmt_handler {
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int (*func) (struct sock *sk, struct hci_dev *hdev,
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void *data, u16 data_len);
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} mgmt_handlers[] = {
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{ NULL }, /* 0x0000 (no command) */
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{ read_version, },
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{ read_commands, },
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{ read_index_list, },
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{ read_controller_info, },
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{ set_powered, },
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{ set_discoverable, },
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{ set_connectable, },
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{ set_fast_connectable, },
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{ set_pairable, },
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{ set_link_security, },
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{ set_ssp, },
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{ set_hs, },
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{ set_le, },
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{ set_dev_class, },
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{ set_local_name, },
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{ add_uuid, },
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{ remove_uuid, },
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{ load_link_keys, },
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{ load_long_term_keys, },
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{ disconnect, },
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{ get_connections, },
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{ pin_code_reply, },
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{ pin_code_neg_reply, },
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{ set_io_capability, },
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{ pair_device, },
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{ cancel_pair_device, },
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{ unpair_device, },
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{ user_confirm_reply, },
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{ user_confirm_neg_reply, },
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{ user_passkey_reply, },
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{ user_passkey_neg_reply, },
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{ read_local_oob_data, },
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{ add_remote_oob_data, },
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{ remove_remote_oob_data, },
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{ start_discovery, },
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{ stop_discovery, },
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{ confirm_name, },
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{ block_device, },
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{ unblock_device, },
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};
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int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
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{
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void *buf;
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@ -2751,150 +2804,36 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
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goto done;
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}
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if (opcode < MGMT_OP_READ_INFO) {
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if (index != MGMT_INDEX_NONE) {
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err = cmd_status(sk, index, opcode,
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MGMT_STATUS_INVALID_PARAMS);
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goto done;
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}
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} else {
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hdev = hci_dev_get(index);
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if (!hdev) {
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err = cmd_status(sk, index, opcode,
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MGMT_STATUS_INVALID_PARAMS);
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goto done;
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}
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mgmt_init_hdev(sk, hdev);
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}
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cp = buf + sizeof(*hdr);
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switch (opcode) {
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case MGMT_OP_READ_VERSION:
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err = read_version(sk);
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break;
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case MGMT_OP_READ_COMMANDS:
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err = read_commands(sk);
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break;
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case MGMT_OP_READ_INDEX_LIST:
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err = read_index_list(sk);
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break;
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case MGMT_OP_READ_INFO:
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err = read_controller_info(sk, hdev);
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break;
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case MGMT_OP_SET_POWERED:
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err = set_powered(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_DISCOVERABLE:
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err = set_discoverable(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_CONNECTABLE:
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err = set_connectable(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_FAST_CONNECTABLE:
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err = set_fast_connectable(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_PAIRABLE:
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err = set_pairable(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_LINK_SECURITY:
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err = set_link_security(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_SSP:
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err = set_ssp(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_HS:
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err = set_hs(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_LE:
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err = set_le(sk, hdev, cp, len);
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break;
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case MGMT_OP_ADD_UUID:
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err = add_uuid(sk, hdev, cp, len);
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break;
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case MGMT_OP_REMOVE_UUID:
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err = remove_uuid(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_DEV_CLASS:
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err = set_dev_class(sk, hdev, cp, len);
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break;
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case MGMT_OP_LOAD_LINK_KEYS:
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err = load_link_keys(sk, hdev, cp, len);
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break;
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case MGMT_OP_DISCONNECT:
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err = disconnect(sk, hdev, cp, len);
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break;
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case MGMT_OP_GET_CONNECTIONS:
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err = get_connections(sk, hdev);
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break;
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case MGMT_OP_PIN_CODE_REPLY:
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err = pin_code_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_PIN_CODE_NEG_REPLY:
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err = pin_code_neg_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_IO_CAPABILITY:
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err = set_io_capability(sk, hdev, cp, len);
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break;
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case MGMT_OP_PAIR_DEVICE:
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err = pair_device(sk, hdev, cp, len);
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break;
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case MGMT_OP_CANCEL_PAIR_DEVICE:
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err = cancel_pair_device(sk, hdev, buf + sizeof(*hdr), len);
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break;
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case MGMT_OP_UNPAIR_DEVICE:
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err = unpair_device(sk, hdev, cp, len);
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break;
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case MGMT_OP_USER_CONFIRM_REPLY:
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err = user_confirm_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_USER_CONFIRM_NEG_REPLY:
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err = user_confirm_neg_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_USER_PASSKEY_REPLY:
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err = user_passkey_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_USER_PASSKEY_NEG_REPLY:
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err = user_passkey_neg_reply(sk, hdev, cp, len);
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break;
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case MGMT_OP_SET_LOCAL_NAME:
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err = set_local_name(sk, hdev, cp, len);
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break;
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case MGMT_OP_READ_LOCAL_OOB_DATA:
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err = read_local_oob_data(sk, hdev);
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break;
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case MGMT_OP_ADD_REMOTE_OOB_DATA:
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err = add_remote_oob_data(sk, hdev, cp, len);
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break;
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case MGMT_OP_REMOVE_REMOTE_OOB_DATA:
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err = remove_remote_oob_data(sk, hdev, cp, len);
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break;
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case MGMT_OP_START_DISCOVERY:
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err = start_discovery(sk, hdev, cp, len);
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break;
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case MGMT_OP_STOP_DISCOVERY:
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err = stop_discovery(sk, hdev, cp, len);
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break;
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case MGMT_OP_CONFIRM_NAME:
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err = confirm_name(sk, hdev, cp, len);
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break;
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case MGMT_OP_BLOCK_DEVICE:
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err = block_device(sk, hdev, cp, len);
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break;
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case MGMT_OP_UNBLOCK_DEVICE:
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err = unblock_device(sk, hdev, cp, len);
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break;
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case MGMT_OP_LOAD_LONG_TERM_KEYS:
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err = load_long_term_keys(sk, hdev, cp, len);
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break;
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default:
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if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
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mgmt_handlers[opcode].func == NULL) {
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BT_DBG("Unknown op %u", opcode);
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err = cmd_status(sk, index, opcode,
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MGMT_STATUS_UNKNOWN_COMMAND);
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break;
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goto done;
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}
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if ((hdev && opcode < MGMT_OP_READ_INFO) ||
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(!hdev && opcode >= MGMT_OP_READ_INFO)) {
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err = cmd_status(sk, index, opcode,
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MGMT_STATUS_INVALID_PARAMS);
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goto done;
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}
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if (hdev)
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mgmt_init_hdev(sk, hdev);
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cp = buf + sizeof(*hdr);
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err = mgmt_handlers[opcode].func(sk, hdev, cp, len);
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if (err < 0)
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goto done;
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