8aab47574a
The function crypto_blkcipher_setkey() called by smp_e() can sleep, so all the crypto work has to be moved to hci_dev workqueue. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
140 lines
3.7 KiB
C
140 lines
3.7 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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#ifndef __SMP_H
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#define __SMP_H
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struct smp_command_hdr {
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__u8 code;
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} __packed;
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#define SMP_CMD_PAIRING_REQ 0x01
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#define SMP_CMD_PAIRING_RSP 0x02
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struct smp_cmd_pairing {
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__u8 io_capability;
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__u8 oob_flag;
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__u8 auth_req;
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__u8 max_key_size;
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__u8 init_key_dist;
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__u8 resp_key_dist;
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} __packed;
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#define SMP_IO_DISPLAY_ONLY 0x00
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#define SMP_IO_DISPLAY_YESNO 0x01
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#define SMP_IO_KEYBOARD_ONLY 0x02
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#define SMP_IO_NO_INPUT_OUTPUT 0x03
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#define SMP_IO_KEYBOARD_DISPLAY 0x04
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#define SMP_OOB_NOT_PRESENT 0x00
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#define SMP_OOB_PRESENT 0x01
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#define SMP_DIST_ENC_KEY 0x01
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#define SMP_DIST_ID_KEY 0x02
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#define SMP_DIST_SIGN 0x04
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#define SMP_AUTH_NONE 0x00
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#define SMP_AUTH_BONDING 0x01
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#define SMP_AUTH_MITM 0x04
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#define SMP_CMD_PAIRING_CONFIRM 0x03
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struct smp_cmd_pairing_confirm {
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__u8 confirm_val[16];
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} __packed;
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#define SMP_CMD_PAIRING_RANDOM 0x04
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struct smp_cmd_pairing_random {
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__u8 rand_val[16];
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} __packed;
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#define SMP_CMD_PAIRING_FAIL 0x05
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struct smp_cmd_pairing_fail {
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__u8 reason;
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} __packed;
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#define SMP_CMD_ENCRYPT_INFO 0x06
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struct smp_cmd_encrypt_info {
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__u8 ltk[16];
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} __packed;
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#define SMP_CMD_MASTER_IDENT 0x07
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struct smp_cmd_master_ident {
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__u16 ediv;
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__u8 rand[8];
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} __packed;
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#define SMP_CMD_IDENT_INFO 0x08
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struct smp_cmd_ident_info {
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__u8 irk[16];
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} __packed;
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#define SMP_CMD_IDENT_ADDR_INFO 0x09
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struct smp_cmd_ident_addr_info {
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__u8 addr_type;
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bdaddr_t bdaddr;
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} __packed;
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#define SMP_CMD_SIGN_INFO 0x0a
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struct smp_cmd_sign_info {
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__u8 csrk[16];
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} __packed;
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#define SMP_CMD_SECURITY_REQ 0x0b
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struct smp_cmd_security_req {
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__u8 auth_req;
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} __packed;
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#define SMP_PASSKEY_ENTRY_FAILED 0x01
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#define SMP_OOB_NOT_AVAIL 0x02
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#define SMP_AUTH_REQUIREMENTS 0x03
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#define SMP_CONFIRM_FAILED 0x04
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#define SMP_PAIRING_NOTSUPP 0x05
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#define SMP_ENC_KEY_SIZE 0x06
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#define SMP_CMD_NOTSUPP 0x07
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#define SMP_UNSPECIFIED 0x08
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#define SMP_REPEATED_ATTEMPTS 0x09
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#define SMP_MIN_ENC_KEY_SIZE 7
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#define SMP_MAX_ENC_KEY_SIZE 16
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struct smp_chan {
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struct l2cap_conn *conn;
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u8 preq[7]; /* SMP Pairing Request */
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u8 prsp[7]; /* SMP Pairing Response */
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u8 prnd[16]; /* SMP Pairing Random (local) */
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u8 rrnd[16]; /* SMP Pairing Random (remote) */
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u8 pcnf[16]; /* SMP Pairing Confirm */
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u8 tk[16]; /* SMP Temporary Key */
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u8 smp_key_size;
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struct crypto_blkcipher *tfm;
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struct work_struct confirm;
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struct work_struct random;
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};
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/* SMP Commands */
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int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level);
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int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
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int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
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void smp_chan_destroy(struct l2cap_conn *conn);
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#endif /* __SMP_H */
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