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Bluetooth LE Security Management channel support.

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Add a socket option to block until underlying HCI connection encrypted.

Differential Revision:	https://reviews.freebsd.org/D3981
This commit is contained in:
takawata 2015-10-27 03:42:26 +00:00
parent 3c82a7278a
commit 5e743ed2df
16 changed files with 320 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sys/netgraph/bluetooth/hci/ng_hci_evnt.c
View File

@ -929,7 +929,7 @@ encryption_change(ng_hci_unit_p unit, struct mbuf *event)
"%s: %s - invalid connection handle=%d\n",
__func__, NG_NODE_NAME(unit->node), h);
error = ENOENT;
} else if (con->link_type != NG_HCI_LINK_ACL) {
} else if (con->link_type == NG_HCI_LINK_SCO) {
NG_HCI_ALERT(
"%s: %s - invalid link type=%d\n",
__func__, NG_NODE_NAME(unit->node),
@ -940,6 +940,7 @@ encryption_change(ng_hci_unit_p unit, struct mbuf *event)
con->encryption_mode = NG_HCI_ENCRYPTION_MODE_P2P;
else
con->encryption_mode = NG_HCI_ENCRYPTION_MODE_NONE;
ng_hci_lp_enc_change(con, ep->encryption_enable);
} else
NG_HCI_ERR(
"%s: %s - failed to change encryption mode, status=%d\n",

31
sys/netgraph/bluetooth/hci/ng_hci_ulpi.c
View File

@ -814,6 +814,37 @@ ng_hci_lp_con_cfm(ng_hci_unit_con_p con, int status)
return (0);
} /* ng_hci_lp_con_cfm */
int
ng_hci_lp_enc_change(ng_hci_unit_con_p con, int status)
{
ng_hci_unit_p unit = con->unit;
struct ng_mesg *msg = NULL;
ng_hci_lp_enc_change_ep *ep = NULL;
int error;
if (con->link_type != NG_HCI_LINK_SCO) {
if (unit->acl != NULL && NG_HOOK_IS_VALID(unit->acl)) {
NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_ENC_CHG,
sizeof(*ep), M_NOWAIT);
if (msg != NULL) {
ep = (ng_hci_lp_enc_change_ep *) msg->data;
ep->status = status;
ep->link_type = con->link_type;
ep->con_handle = con->con_handle;
NG_SEND_MSG_HOOK(error, unit->node, msg,
unit->acl, 0);
}
} else
NG_HCI_INFO(
"%s: %s - ACL hook not valid, hook=%p\n",
__func__, NG_NODE_NAME(unit->node), unit->acl);
}
return (0);
} /* ng_hci_lp_con_cfm */
/*
* Send LP_ConnectInd event to the upper layer protocol
*/

1
sys/netgraph/bluetooth/hci/ng_hci_ulpi.h
View File

@ -47,6 +47,7 @@ int ng_hci_lp_discon_ind (ng_hci_unit_con_p, int);
int ng_hci_lp_qos_req (ng_hci_unit_p, item_p, hook_p);
int ng_hci_lp_qos_cfm (ng_hci_unit_con_p, int);
int ng_hci_lp_qos_ind (ng_hci_unit_con_p);
int ng_hci_lp_enc_change (ng_hci_unit_con_p, int);
void ng_hci_process_con_timeout (node_p, hook_p, void *, int);

2
sys/netgraph/bluetooth/include/ng_btsocket.h
View File

@ -255,7 +255,7 @@ struct sockaddr_l2cap {
#define SO_L2CAP_IFLOW 3 /* get incoming flow spec. */
#define SO_L2CAP_OFLOW 4 /* get/set outgoing flow spec. */
#define SO_L2CAP_FLUSH 5 /* get/set flush timeout */
#define SO_L2CAP_ENCRYPTED 6 /* get/set whether wait for encryptin on connect */
/*
* Raw L2CAP sockets ioctl's
*/

8
sys/netgraph/bluetooth/include/ng_btsocket_l2cap.h
View File

@ -136,7 +136,7 @@ struct ng_btsocket_l2cap_pcb {
u_int16_t psm; /* PSM */
u_int16_t cid; /* Local channel ID */
uint8_t idtype;
u_int16_t flags; /* socket flags */
#define NG_BTSOCKET_L2CAP_CLIENT (1 << 0) /* socket is client */
#define NG_BTSOCKET_L2CAP_TIMO (1 << 1) /* timeout pending */
@ -147,6 +147,7 @@ struct ng_btsocket_l2cap_pcb {
#define NG_BTSOCKET_L2CAP_CONFIGURING 2 /* wait for config */
#define NG_BTSOCKET_L2CAP_OPEN 3 /* socket open */
#define NG_BTSOCKET_L2CAP_DISCONNECTING 4 /* wait for disconnect */
#define NG_BTSOCKET_L2CAP_W4_ENC_CHANGE 5
u_int8_t cfg_state; /* config state */
#define NG_BTSOCKET_L2CAP_CFG_IN (1 << 0) /* incoming path done */
@ -156,7 +157,7 @@ struct ng_btsocket_l2cap_pcb {
#define NG_BTSOCKET_L2CAP_CFG_IN_SENT (1 << 2) /* L2CAP ConfigReq sent */
#define NG_BTSOCKET_L2CAP_CFG_OUT_SENT (1 << 3) /* ---/--- */
uint8_t encryption;
u_int16_t imtu; /* Incoming MTU */
ng_l2cap_flow_t iflow; /* Input flow spec */
@ -172,7 +173,8 @@ struct ng_btsocket_l2cap_pcb {
ng_btsocket_l2cap_rtentry_p rt; /* routing info */
struct mtx pcb_mtx; /* pcb mutex */
uint16_t need_encrypt; /*encryption needed*/
LIST_ENTRY(ng_btsocket_l2cap_pcb) next; /* link to next PCB */
};
typedef struct ng_btsocket_l2cap_pcb ng_btsocket_l2cap_pcb_t;

8
sys/netgraph/bluetooth/include/ng_hci.h
View File

@ -469,7 +469,13 @@ typedef struct {
typedef struct {
u_int16_t con_handle; /* connection handle */
} ng_hci_lp_qos_ind_ep;
/*Encryption Change event*/
#define NGM_HCI_LP_ENC_CHG 10 /* HCI->Upper*/
typedef struct {
uint16_t con_handle;
uint8_t status;
uint8_t link_type;
}ng_hci_lp_enc_change_ep;
/**************************************************************************
**************************************************************************
** HCI node command/event parameters

9
sys/netgraph/bluetooth/include/ng_l2cap.h
View File

@ -256,6 +256,7 @@ typedef union {
u_int16_t mtu; /* NG_L2CAP_OPT_MTU */
u_int16_t flush_timo; /* NG_L2CAP_OPT_FLUSH_TIMO */
ng_l2cap_flow_t flow; /* NG_L2CAP_OPT_QOS */
uint16_t encryption;
} ng_l2cap_cfg_opt_val_t;
typedef ng_l2cap_cfg_opt_val_t * ng_l2cap_cfg_opt_val_p;
@ -357,6 +358,7 @@ typedef struct {
#define NG_L2CAP_L2CA_IDTYPE_BREDR 0
#define NG_L2CAP_L2CA_IDTYPE_ATT 1
#define NG_L2CAP_L2CA_IDTYPE_LE 2
#define NG_L2CAP_L2CA_IDTYPE_SMP 3
/* L2CA_Connect */
#define NGM_L2CAP_L2CA_CON 0x80
/* Upper -> L2CAP */
@ -373,6 +375,7 @@ typedef struct {
uint16_t idtype; /*ID type*/
u_int16_t result; /* 0x00 - success */
u_int16_t status; /* if result != 0x00 */
uint8_t encryption;
} ng_l2cap_l2ca_con_op;
/* L2CA_ConnectInd */
@ -598,6 +601,12 @@ typedef struct {
* u_int16_t result; /* 0x00 - success */
* } ng_l2cap_l2ca_enable_clt_op;
#endif
#define NGM_L2CAP_L2CA_ENC_CHANGE 0x92
typedef struct {
uint16_t lcid;
uint16_t result;
uint8_t idtype;
} ng_l2cap_l2ca_enc_chg_op;
/**************************************************************************
**************************************************************************

6
sys/netgraph/bluetooth/l2cap/ng_l2cap_evnt.c
View File

@ -475,6 +475,8 @@ ng_l2cap_process_con_req(ng_l2cap_con_p con, u_int8_t ident)
con->rx_pkt = NULL;
if(dcid == NG_L2CAP_ATT_CID)
idtype = NG_L2CAP_L2CA_IDTYPE_ATT;
else if(dcid == NG_L2CAP_SMP_CID)
idtype = NG_L2CAP_L2CA_IDTYPE_SMP;
else if( con->linktype != NG_HCI_LINK_ACL)
idtype = NG_L2CAP_L2CA_IDTYPE_LE;
else
@ -602,7 +604,9 @@ ng_l2cap_process_con_rsp(ng_l2cap_con_p con, u_int8_t ident)
*/
cmd->ch->dcid = dcid;
cmd->ch->state = (cmd->ch->scid == NG_L2CAP_ATT_CID)?
cmd->ch->state = ((cmd->ch->scid == NG_L2CAP_ATT_CID)||
(cmd->ch->scid == NG_L2CAP_SMP_CID))
?
NG_L2CAP_OPEN : NG_L2CAP_CONFIG;
} else
/* There was an error, so close the channel */

52
sys/netgraph/bluetooth/l2cap/ng_l2cap_llpi.c
View File

@ -481,6 +481,58 @@ ng_l2cap_lp_qos_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
return (error);
} /* ng_l2cap_qos_ind */
int
ng_l2cap_lp_enc_change(ng_l2cap_p l2cap, struct ng_mesg *msg)
{
ng_hci_lp_enc_change_ep *ep = NULL;
ng_l2cap_con_p con = NULL;
int error = 0;
ng_l2cap_chan_p ch = NULL;
/* Check message */
if (msg->header.arglen != sizeof(*ep)) {
NG_L2CAP_ALERT(
"%s: %s - invalid LP_ENCChange message size\n",
__func__, NG_NODE_NAME(l2cap->node));
error = EMSGSIZE;
goto out;
}
ep = (ng_hci_lp_enc_change_ep *) (msg->data);
/* Check if we have this connection */
con = ng_l2cap_con_by_handle(l2cap, ep->con_handle);
if (con == NULL) {
NG_L2CAP_ERR(
"%s: %s - unexpected LP_Enc Change Event. " \
"Connection does not exist, con_handle=%d\n",
__func__, NG_NODE_NAME(l2cap->node), ep->con_handle);
error = ENOENT;
goto out;
}
/* Verify connection state */
if (con->state != NG_L2CAP_CON_OPEN) {
NG_L2CAP_ERR(
"%s: %s - unexpected ENC_CHANGE event. " \
"Invalid connection state, state=%d, con_handle=%d\n",
__func__, NG_NODE_NAME(l2cap->node), con->state,
con->con_handle);
error = EINVAL;
goto out;
}
con->encryption = ep->status;
LIST_FOREACH(ch, &l2cap->chan_list, next){
if((ch->con->con_handle == ep->con_handle) &&
(ch->con->linktype == ep->link_type))
ng_l2cap_l2ca_encryption_change(ch, ep->status);
}
out:
return (error);
} /* ng_l2cap_enc_change */
/*
* Prepare L2CAP packet. Prepend packet with L2CAP packet header and then
* segment it according to HCI MTU.

1
sys/netgraph/bluetooth/l2cap/ng_l2cap_llpi.h
View File

@ -41,6 +41,7 @@ int ng_l2cap_lp_discon_ind (ng_l2cap_p, struct ng_mesg *);
int ng_l2cap_lp_qos_req (ng_l2cap_p, u_int16_t, ng_l2cap_flow_p);
int ng_l2cap_lp_qos_cfm (ng_l2cap_p, struct ng_mesg *);
int ng_l2cap_lp_qos_ind (ng_l2cap_p, struct ng_mesg *);
int ng_l2cap_lp_enc_change (ng_l2cap_p, struct ng_mesg *);
int ng_l2cap_lp_send (ng_l2cap_con_p, u_int16_t,struct mbuf *);
int ng_l2cap_lp_receive (ng_l2cap_p, struct mbuf *);
void ng_l2cap_lp_deliver (ng_l2cap_con_p);

4
sys/netgraph/bluetooth/l2cap/ng_l2cap_main.c
View File

@ -350,7 +350,9 @@ ng_l2cap_lower_rcvmsg(node_p node, item_p item, hook_p lasthook)
case NGM_HCI_LP_QOS_IND:
error = ng_l2cap_lp_qos_ind(l2cap, msg);
break;
case NGM_HCI_LP_ENC_CHG:
error = ng_l2cap_lp_enc_change(l2cap, msg);
break;
default:
error = EINVAL;
break;

8
sys/netgraph/bluetooth/l2cap/ng_l2cap_misc.c
View File

@ -114,7 +114,7 @@ ng_l2cap_new_con(ng_l2cap_p l2cap, bdaddr_p bdaddr, int type)
con->l2cap = l2cap;
con->state = NG_L2CAP_CON_CLOSED;
con->encryption = 0;
/*
* XXX
*
@ -340,6 +340,8 @@ ng_l2cap_new_chan(ng_l2cap_p l2cap, ng_l2cap_con_p con, u_int16_t psm, int idtyp
return (NULL);
if(idtype == NG_L2CAP_L2CA_IDTYPE_ATT){
ch->scid = ch->dcid = NG_L2CAP_ATT_CID;
}else if(idtype == NG_L2CAP_L2CA_IDTYPE_SMP){
ch->scid = ch->dcid = NG_L2CAP_SMP_CID;
}else{
ch->scid = ng_l2cap_get_cid(l2cap,
(con->linktype!= NG_HCI_LINK_ACL));
@ -379,7 +381,8 @@ ng_l2cap_chan_by_scid(ng_l2cap_p l2cap, u_int16_t scid, int idtype)
{
ng_l2cap_chan_p ch = NULL;
if(idtype == NG_L2CAP_L2CA_IDTYPE_ATT){
if((idtype == NG_L2CAP_L2CA_IDTYPE_ATT)||
(idtype == NG_L2CAP_L2CA_IDTYPE_SMP)){
return NULL;
}
@ -390,7 +393,6 @@ ng_l2cap_chan_by_scid(ng_l2cap_p l2cap, u_int16_t scid, int idtype)
if((idtype != NG_L2CAP_L2CA_IDTYPE_LE)&&
(ch->con->linktype != NG_HCI_LINK_ACL ))
continue;
if (ch->scid == scid)
break;
}

106
sys/netgraph/bluetooth/l2cap/ng_l2cap_ulpi.c
View File

@ -130,6 +130,10 @@ ng_l2cap_l2ca_con_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
_ng_l2cap_con_rsp(cmd->aux, cmd->ident, NG_L2CAP_ATT_CID,
NG_L2CAP_ATT_CID, 0, 0);
cmd->aux->m_flags |= M_PROTO2;
}else if(ip->idtype == NG_L2CAP_L2CA_IDTYPE_SMP){
_ng_l2cap_con_rsp(cmd->aux, cmd->ident, NG_L2CAP_SMP_CID,
NG_L2CAP_SMP_CID, 0, 0);
cmd->aux->m_flags |= M_PROTO2;
}else{
_ng_l2cap_con_req(cmd->aux, cmd->ident, ch->psm, ch->scid);
}
@ -191,13 +195,16 @@ ng_l2cap_l2ca_con_rsp(ng_l2cap_chan_p ch, u_int32_t token, u_int16_t result,
if(ch->scid == NG_L2CAP_ATT_CID){
op->idtype = NG_L2CAP_L2CA_IDTYPE_ATT;
op->lcid = ch->con->con_handle;
}else if(ch->scid == NG_L2CAP_SMP_CID){
op->idtype = NG_L2CAP_L2CA_IDTYPE_SMP;
op->lcid = ch->con->con_handle;
}else{
op->idtype = (ch->con->linktype == NG_HCI_LINK_ACL)?
NG_L2CAP_L2CA_IDTYPE_BREDR :
NG_L2CAP_L2CA_IDTYPE_LE;
op->lcid = ch->scid;
}
op->encryption = ch->con->encryption;
op->result = result;
op->status = status;
@ -234,7 +241,8 @@ ng_l2cap_l2ca_con_rsp_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
ip = (ng_l2cap_l2ca_con_rsp_ip *)(msg->data);
/* Check if we have this channel */
if(ip->lcid != NG_L2CAP_ATT_CID){
if((ip->lcid != NG_L2CAP_ATT_CID)&&
(ip->lcid != NG_L2CAP_SMP_CID)){
ch = ng_l2cap_chan_by_scid(l2cap, ip->lcid
,(ip->linktype == NG_HCI_LINK_ACL)?
NG_L2CAP_L2CA_IDTYPE_BREDR:
@ -281,7 +289,8 @@ ng_l2cap_l2ca_con_rsp_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
/* Check result */
switch (ip->result) {
case NG_L2CAP_SUCCESS:
ch->state = (ch->scid == NG_L2CAP_ATT_CID)?
ch->state = ((ch->scid == NG_L2CAP_ATT_CID)||
(ch->scid == NG_L2CAP_SMP_CID))?
NG_L2CAP_OPEN : NG_L2CAP_CONFIG;
ch->cfg_state = 0;
break;
@ -324,6 +333,53 @@ ng_l2cap_l2ca_con_rsp_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
return (error);
} /* ng_l2cap_l2ca_con_rsp_req */
int ng_l2cap_l2ca_encryption_change(ng_l2cap_chan_p ch, uint16_t result)
{
ng_l2cap_p l2cap = ch->con->l2cap;
struct ng_mesg *msg = NULL;
ng_l2cap_l2ca_enc_chg_op *op = NULL;
int error = 0;
/* Check if upstream hook is connected and valid */
if (l2cap->l2c == NULL || NG_HOOK_NOT_VALID(l2cap->l2c)) {
NG_L2CAP_ERR(
"%s: %s - unable to send L2CA_ConnectRsp response message. " \
"Hook is not connected or valid, psm=%d\n",
__func__, NG_NODE_NAME(l2cap->node), ch->psm);
return (ENOTCONN);
}
/* Create and send L2CA_ConnectRsp response message */
NG_MKMESSAGE(msg, NGM_L2CAP_COOKIE, NGM_L2CAP_L2CA_ENC_CHANGE,
sizeof(*op), M_NOWAIT);
if (msg == NULL)
error = ENOMEM;
else {
msg->header.token = 0;
msg->header.flags |= NGF_RESP;
op = (ng_l2cap_l2ca_enc_chg_op *)(msg->data);
op->result = result;
if(ch->scid ==NG_L2CAP_ATT_CID||
ch->scid ==NG_L2CAP_SMP_CID){
op->lcid = ch->con->con_handle;
op->idtype = (ch->scid==NG_L2CAP_ATT_CID)?
NG_L2CAP_L2CA_IDTYPE_ATT:
NG_L2CAP_L2CA_IDTYPE_SMP;
}else{
op->idtype =(ch->con->linktype ==NG_HCI_LINK_ACL)?
NG_L2CAP_L2CA_IDTYPE_BREDR:
NG_L2CAP_L2CA_IDTYPE_LE;
}
NG_SEND_MSG_HOOK(error, l2cap->node, msg, l2cap->l2c, 0);
}
return (error);
}
/*
* Send L2CAP_ConnectRsp response to the upper layer
*/
@ -399,6 +455,7 @@ ng_l2cap_l2ca_con_ind(ng_l2cap_chan_p ch)
ip->psm = ch->psm;
ip->ident = ch->ident;
ip->linktype = ch->con->linktype;
NG_SEND_MSG_HOOK(error, l2cap->node, msg, l2cap->l2c, 0);
}
@ -501,7 +558,8 @@ ng_l2cap_l2ca_cfg_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
/* Adjust channel state for re-configuration */
if (ch->state == NG_L2CAP_OPEN) {
ch->state = (ch->scid == NG_L2CAP_ATT_CID)?
ch->state = ((ch->scid == NG_L2CAP_ATT_CID)||
(ch->scid == NG_L2CAP_SMP_CID))?
NG_L2CAP_OPEN : NG_L2CAP_CONFIG;
ch->cfg_state = 0;
}
@ -812,7 +870,10 @@ ng_l2cap_l2ca_write_req(ng_l2cap_p l2cap, struct mbuf *m)
if (l2ca_hdr->idtype == NG_L2CAP_L2CA_IDTYPE_ATT){
ch = ng_l2cap_chan_by_conhandle(l2cap, NG_L2CAP_ATT_CID,
l2ca_hdr->lcid);
} else{
} else if (l2ca_hdr->idtype == NG_L2CAP_L2CA_IDTYPE_SMP){
ch = ng_l2cap_chan_by_conhandle(l2cap, NG_L2CAP_SMP_CID,
l2ca_hdr->lcid);
}else{
if (l2ca_hdr->lcid < NG_L2CAP_FIRST_CID) {
NG_L2CAP_ERR(
"%s: %s - invalid L2CA Data packet. Inavlid channel ID, cid=%d\n",
@ -901,6 +962,9 @@ ng_l2cap_l2ca_write_rsp(ng_l2cap_chan_p ch, u_int32_t token, u_int16_t result,
if(ch->scid == NG_L2CAP_ATT_CID){
op->idtype = NG_L2CAP_L2CA_IDTYPE_ATT;
op->lcid = ch->con->con_handle;
}else if(ch->scid == NG_L2CAP_SMP_CID){
op->idtype = NG_L2CAP_L2CA_IDTYPE_SMP;
op->lcid = ch->con->con_handle;
}else{
op->idtype = (ch->con->linktype == NG_HCI_LINK_ACL)?
NG_L2CAP_L2CA_IDTYPE_BREDR :
@ -928,7 +992,8 @@ ng_l2cap_l2ca_receive(ng_l2cap_con_p con)
int error = 0;
int idtype;
uint16_t *idp;
int silent = 0;
NG_L2CAP_M_PULLUP(con->rx_pkt, sizeof(*hdr));
if (con->rx_pkt == NULL)
return (ENOBUFS);
@ -945,6 +1010,17 @@ ng_l2cap_l2ca_receive(ng_l2cap_con_p con)
* Here,ATT channel is distinguished by
* connection handle
*/
hdr->dcid = con->con_handle;
silent = 1;
}else if(hdr->dcid == NG_L2CAP_SMP_CID){
idtype = NG_L2CAP_L2CA_IDTYPE_SMP;
ch = ng_l2cap_chan_by_conhandle(l2cap, NG_L2CAP_SMP_CID,
con->con_handle);
/*
* Here,SMP channel is distinguished by
* connection handle
*/
silent = 1;
hdr->dcid = con->con_handle;
}else{
idtype = (con->linktype==NG_HCI_LINK_ACL)?
@ -953,7 +1029,8 @@ ng_l2cap_l2ca_receive(ng_l2cap_con_p con)
ch = ng_l2cap_chan_by_scid(l2cap, hdr->dcid, idtype);
}
if (ch == NULL) {
NG_L2CAP_ERR(
if(!silent)
NG_L2CAP_ERR(
"%s: %s - unexpected L2CAP data packet. Channel does not exist, cid=%d, idtype=%d\n",
__func__, NG_NODE_NAME(l2cap->node), hdr->dcid, idtype);
error = ENOENT;
@ -1165,6 +1242,21 @@ ng_l2cap_l2ca_discon_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
}else{
NG_L2CAP_ERR(
"%s: %s - unexpected L2CA_Disconnect request message. " \
"Channel does not exist, conhandle=%d\n",
__func__, NG_NODE_NAME(l2cap->node), ip->lcid);
error = EINVAL;
}
goto out;
}else if(ip->idtype == NG_L2CAP_L2CA_IDTYPE_SMP){
/* Don't send Disconnect request on L2CAP Layer*/
ch = ng_l2cap_chan_by_conhandle(l2cap, NG_L2CAP_SMP_CID,
ip->lcid);
if(ch != NULL){
ng_l2cap_free_chan(ch);
}else{
NG_L2CAP_ERR(
"%s: %s - unexpected L2CA_Disconnect request message. " \
"Channel does not exist, conhandle=%d\n",
__func__, NG_NODE_NAME(l2cap->node), ip->lcid);
error = EINVAL;

2
sys/netgraph/bluetooth/l2cap/ng_l2cap_ulpi.h
View File

@ -74,6 +74,6 @@ int ng_l2cap_l2ca_get_info_rsp (ng_l2cap_con_p, u_int32_t, u_int16_t,
struct mbuf *);
int ng_l2cap_l2ca_enable_clt (ng_l2cap_p, struct ng_mesg *);
int ng_l2cap_l2ca_encryption_change(ng_l2cap_chan_p , uint16_t );
#endif /* ndef _NETGRAPH_L2CAP_ULPI_H_ */

3
sys/netgraph/bluetooth/l2cap/ng_l2cap_var.h
View File

@ -119,7 +119,8 @@ typedef struct ng_l2cap_con {
u_int8_t ident; /* last allocated ident */
uint8_t linktype;
uint8_t encryption;
TAILQ_HEAD(, ng_l2cap_cmd) cmd_list; /* pending L2CAP cmds */
struct mbuf *tx_pkt; /* xmitted L2CAP packet */

128
sys/netgraph/bluetooth/socket/ng_btsocket_l2cap.c
View File

@ -213,7 +213,7 @@ static ng_btsocket_l2cap_pcb_p ng_btsocket_l2cap_pcb_by_cid (bdaddr_p, int,i
static int ng_btsocket_l2cap_result2errno(int);
static int ng_btsock_l2cap_addrtype_to_linktype(int addrtype);
static int ng_btsock_l2cap_pcb_to_idtype(struct ng_btsocket_l2cap_pcb *);
#define ng_btsocket_l2cap_wakeup_input_task() \
taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_queue_task)
@ -221,16 +221,6 @@ static int ng_btsock_l2cap_pcb_to_idtype(struct ng_btsocket_l2cap_pcb *);
taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_l2cap_rt_task)
int ng_btsock_l2cap_pcb_to_idtype(struct ng_btsocket_l2cap_pcb *pcb)
{
if(pcb->dsttype == BDADDR_BREDR){
return NG_L2CAP_L2CA_IDTYPE_BREDR;
}else if(pcb->psm == 0){
return NG_L2CAP_L2CA_IDTYPE_ATT;
}else{
return NG_L2CAP_L2CA_IDTYPE_LE;
}
}
int ng_btsock_l2cap_addrtype_to_linktype(int addrtype)
{
@ -473,11 +463,15 @@ ng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg,
}
if (op->result == NG_L2CAP_SUCCESS){
if(ng_btsock_l2cap_pcb_to_idtype(pcb) ==
NG_L2CAP_L2CA_IDTYPE_ATT){
pcb->state = NG_BTSOCKET_L2CAP_OPEN;
soisconnected(pcb->so);
pcb->cid = op->lcid;
if((pcb->idtype == NG_L2CAP_L2CA_IDTYPE_ATT)||
(pcb->idtype == NG_L2CAP_L2CA_IDTYPE_SMP)){
pcb->encryption = op->encryption; pcb->cid = op->lcid;
if(pcb->need_encrypt && !(pcb->encryption)){
pcb->state = NG_BTSOCKET_L2CAP_W4_ENC_CHANGE;
}else{
pcb->state = NG_BTSOCKET_L2CAP_OPEN;
soisconnected(pcb->so);
}
}else{
/*
* Channel is now open, so update local channel ID and
@ -486,7 +480,7 @@ ng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg,
*/
pcb->cid = op->lcid;
pcb->encryption = op->encryption;
error = ng_btsocket_l2cap_send_l2ca_cfg_req(pcb);
if (error != 0) {
/* Send disconnect request with "zero" token */
@ -513,7 +507,6 @@ ng_btsocket_l2cap_process_l2ca_con_req_rsp(struct ng_mesg *msg,
pcb->state = NG_BTSOCKET_L2CAP_CLOSED;
soisdisconnected(pcb->so);
}
mtx_unlock(&pcb->pcb_mtx);
mtx_unlock(&ng_btsocket_l2cap_sockets_mtx);
@ -702,7 +695,40 @@ ng_btsocket_l2cap_process_l2ca_con_ind(struct ng_mesg *msg,
return (error);
} /* ng_btsocket_l2cap_process_l2ca_con_ind */
/*Encryption Change*/
static int ng_btsocket_l2cap_process_l2ca_enc_change(struct ng_mesg *msg, ng_btsocket_l2cap_rtentry_p rt)
{
ng_l2cap_l2ca_enc_chg_op *op = NULL;
ng_btsocket_l2cap_pcb_t *pcb = NULL;
if (msg->header.arglen != sizeof(*op))
return (EMSGSIZE);
op = (ng_l2cap_l2ca_enc_chg_op *)(msg->data);
pcb = ng_btsocket_l2cap_pcb_by_cid(&rt->src, op->lcid,
op->idtype);
mtx_lock(&pcb->pcb_mtx);
pcb->encryption = op->result;
if(pcb->need_encrypt){
if(pcb->state != NG_BTSOCKET_L2CAP_W4_ENC_CHANGE){
NG_BTSOCKET_L2CAP_WARN("%s: Invalid pcb status %d",
__func__, pcb->state);
}else if(pcb->encryption){
pcb->state = NG_BTSOCKET_L2CAP_OPEN;
soisconnected(pcb->so);
}else{
pcb->so->so_error = EPERM;
pcb->state = NG_BTSOCKET_L2CAP_CLOSED;
soisdisconnected(pcb->so);
}
}
mtx_unlock(&pcb->pcb_mtx);
return 0;
}
/*
* Process L2CA_Config response
*/
@ -1215,7 +1241,7 @@ ng_btsocket_l2cap_send_l2ca_con_req(ng_btsocket_l2cap_pcb_p pcb)
bcopy(&pcb->dst, &ip->bdaddr, sizeof(ip->bdaddr));
ip->psm = pcb->psm;
ip->linktype = ng_btsock_l2cap_addrtype_to_linktype(pcb->dsttype);
ip->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb);
ip->idtype = pcb->idtype;
NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0);
return (error);
@ -1354,7 +1380,7 @@ ng_btsocket_l2cap_send_l2ca_discon_req(u_int32_t token,
ip = (ng_l2cap_l2ca_discon_ip *)(msg->data);
ip->lcid = pcb->cid;
ip->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb);
ip->idtype = pcb->idtype;
NG_SEND_MSG_HOOK(error, ng_btsocket_l2cap_node, msg,pcb->rt->hook, 0);
@ -1441,7 +1467,9 @@ ng_btsocket_l2cap_data_input(struct mbuf *m, hook_p hook)
hdr->dcid, hdr->length);
if ((hdr->dcid >= NG_L2CAP_FIRST_CID) ||
(idtype == NG_L2CAP_L2CA_IDTYPE_ATT)){
(idtype == NG_L2CAP_L2CA_IDTYPE_ATT)||
(idtype == NG_L2CAP_L2CA_IDTYPE_SMP)
){
mtx_lock(&ng_btsocket_l2cap_sockets_mtx);
@ -1707,7 +1735,10 @@ ng_btsocket_l2cap_l2ca_msg_input(struct ng_mesg *msg, hook_p hook)
case NGM_L2CAP_L2CA_WRITE: /* L2CA_Write response */
ng_btsocket_l2cap_process_l2ca_write_rsp(msg, rt);
break;
case NGM_L2CAP_L2CA_ENC_CHANGE:
ng_btsocket_l2cap_process_l2ca_enc_change(msg, rt);
break;
/* XXX FIXME add other L2CA messages */
default:
@ -1764,6 +1795,7 @@ ng_btsocket_l2cap_input(void *context, int pending)
case NGM_L2CAP_L2CA_DISCON:
case NGM_L2CAP_L2CA_DISCON_IND:
case NGM_L2CAP_L2CA_WRITE:
case NGM_L2CAP_L2CA_ENC_CHANGE:
/* XXX FIXME add other L2CA messages */
ng_btsocket_l2cap_l2ca_msg_input(msg, hook);
break;
@ -2135,7 +2167,7 @@ ng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam,
struct sockaddr_l2cap ba;
ng_btsocket_l2cap_rtentry_t *rt = NULL;
int have_src, error = 0;
int idtype = NG_L2CAP_L2CA_IDTYPE_BREDR;
/* Check socket */
if (pcb == NULL)
return (EINVAL);
@ -2164,9 +2196,16 @@ ng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam,
if((sa->l2cap_bdaddr_type == BDADDR_BREDR)&&
(sa->l2cap_psm == 0))
return EDESTADDRREQ;
if((sa->l2cap_bdaddr_type != BDADDR_BREDR)&&
(sa->l2cap_cid != NG_L2CAP_ATT_CID)){
return EINVAL;
if(sa->l2cap_bdaddr_type != BDADDR_BREDR){
if(sa->l2cap_cid == NG_L2CAP_ATT_CID){
idtype = NG_L2CAP_L2CA_IDTYPE_ATT;
}else if (sa->l2cap_cid == NG_L2CAP_SMP_CID){
idtype =NG_L2CAP_L2CA_IDTYPE_SMP;
}else{
//if cid == 0 idtype = NG_L2CAP_L2CA_IDTYPE_LE;
// Not supported yet
return EINVAL;
}
}
if (pcb->psm != 0 && pcb->psm != le16toh(sa->l2cap_psm))
return (EINVAL);
@ -2185,8 +2224,8 @@ ng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam,
bcopy(&sa->l2cap_bdaddr, &pcb->dst, sizeof(pcb->dst));
pcb->psm = le16toh(sa->l2cap_psm);
pcb->dsttype = sa->l2cap_bdaddr_type;
pcb->cid = sa->l2cap_cid;
pcb->cid = 0;
pcb->idtype = idtype;
pcb->rt = NULL;
have_src = bcmp(&pcb->src, NG_HCI_BDADDR_ANY, sizeof(pcb->src));
@ -2211,7 +2250,7 @@ ng_btsocket_l2cap_connect(struct socket *so, struct sockaddr *nam,
bcopy(&rt->src, &pcb->src, sizeof(pcb->src));
pcb->srctype =
(sa->l2cap_bdaddr_type == BDADDR_BREDR)?
BDADDR_BREDR : BDADDR_LE_RANDOM;
BDADDR_BREDR : BDADDR_LE_PUBLIC;
}
} else
error = EHOSTUNREACH;
@ -2297,6 +2336,11 @@ ng_btsocket_l2cap_ctloutput(struct socket *so, struct sockopt *sopt)
error = sooptcopyout(sopt, &pcb->flush_timo,
sizeof(pcb->flush_timo));
break;
case SO_L2CAP_ENCRYPTED: /* get encrypt required */
error = sooptcopyout(sopt, &pcb->need_encrypt,
sizeof(pcb->need_encrypt));
break;
default:
error = ENOPROTOOPT;
@ -2337,7 +2381,17 @@ ng_btsocket_l2cap_ctloutput(struct socket *so, struct sockopt *sopt)
if (error == 0)
pcb->flush_timo = v.flush_timo;
break;
case SO_L2CAP_ENCRYPTED: /*set connect encryption opt*/
if((pcb->state != NG_BTSOCKET_L2CAP_OPEN) &&
(pcb->state != NG_BTSOCKET_L2CAP_W4_ENC_CHANGE)){
error = sooptcopyin(sopt, &v, sizeof(v),
sizeof(v.encryption));
if(error == 0)
pcb->need_encrypt = (v.encryption)?1:0;
}else{
error = EINVAL;
}
break;
default:
error = ENOPROTOOPT;
break;
@ -2489,7 +2543,17 @@ ng_btsocket_l2cap_peeraddr(struct socket *so, struct sockaddr **nam)
sa.l2cap_psm = htole16(pcb->psm);
sa.l2cap_len = sizeof(sa);
sa.l2cap_family = AF_BLUETOOTH;
sa.l2cap_cid = 0;
switch(pcb->idtype){
case NG_L2CAP_L2CA_IDTYPE_ATT:
sa.l2cap_cid = NG_L2CAP_ATT_CID;
break;
case NG_L2CAP_L2CA_IDTYPE_SMP:
sa.l2cap_cid = NG_L2CAP_SMP_CID;
break;
default:
sa.l2cap_cid = 0;
break;
}
sa.l2cap_bdaddr_type = pcb->dsttype;
*nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT);
@ -2608,7 +2672,7 @@ ng_btsocket_l2cap_send2(ng_btsocket_l2cap_pcb_p pcb)
hdr->token = pcb->token;
hdr->length = m->m_pkthdr.len - sizeof(*hdr);
hdr->lcid = pcb->cid;
hdr->idtype = ng_btsock_l2cap_pcb_to_idtype(pcb);
hdr->idtype = pcb->idtype;
NG_BTSOCKET_L2CAP_INFO(
"%s: Sending packet: len=%d, length=%d, lcid=%d, token=%d, state=%d\n",
__func__, m->m_pkthdr.len, hdr->length, hdr->lcid,
@ -2721,7 +2785,7 @@ ng_btsocket_l2cap_pcb_by_cid(bdaddr_p src, int cid, int idtype)
LIST_FOREACH(p, &ng_btsocket_l2cap_sockets, next){
if (p->cid == cid &&
bcmp(src, &p->src, sizeof(p->src)) == 0&&
ng_btsock_l2cap_pcb_to_idtype(p) == idtype)
p->idtype == idtype)
break;
}