/* $OpenBSD: hci_raw.c,v 1.3 2005/01/17 18:12:49 mickey Exp $ */ /* * ng_btsocket_hci_raw.c * * Copyright (c) 2001-2002 Maksim Yevmenkin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/netgraph/bluetooth/socket/ng_btsocket_hci_raw.c,v 1.16 2004/10/18 22:19:42 rwatson Exp $ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if 0 /* Netgraph node methods */ static ng_constructor_t ng_btsocket_hci_raw_node_constructor; static ng_rcvmsg_t ng_btsocket_hci_raw_node_rcvmsg; static ng_shutdown_t ng_btsocket_hci_raw_node_shutdown; static ng_newhook_t ng_btsocket_hci_raw_node_newhook; static ng_connect_t ng_btsocket_hci_raw_node_connect; static ng_rcvdata_t ng_btsocket_hci_raw_node_rcvdata; static ng_disconnect_t ng_btsocket_hci_raw_node_disconnect; #endif void ng_btsocket_hci_raw_output(void *, int); void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p, struct mbuf **, struct mbuf *); int ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p, struct mbuf *, int); int ng_btsocket_hci_raw_send_ngmsg(char *, int, void *, int); int ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p, char *, int, void *, int); #define ng_btsocket_hci_raw_wakeup_input_task() \ taskqueue_enqueue(taskqueue_swi_giant, &ng_btsocket_hci_raw_task) /* Security filter */ struct ng_btsocket_hci_raw_sec_filter { bitstr_t bit_decl(events, 0xff); bitstr_t bit_decl(commands[0x3f], 0x3ff); }; #if 0 /* Netgraph type descriptor */ static struct ng_type typestruct = { .version = NG_ABI_VERSION, .name = NG_BTSOCKET_HCI_RAW_NODE_TYPE, .constructor = ng_btsocket_hci_raw_node_constructor, .rcvmsg = ng_btsocket_hci_raw_node_rcvmsg, .shutdown = ng_btsocket_hci_raw_node_shutdown, .newhook = ng_btsocket_hci_raw_node_newhook, .connect = ng_btsocket_hci_raw_node_connect, .rcvdata = ng_btsocket_hci_raw_node_rcvdata, .disconnect = ng_btsocket_hci_raw_node_disconnect, }; #endif /* Globals */ extern int ifqmaxlen; static u_int32_t ng_btsocket_hci_raw_debug_level; static u_int32_t ng_btsocket_hci_raw_ioctl_timeout; #if 0 static node_p ng_btsocket_hci_raw_node; #endif static struct ng_bt_itemq ng_btsocket_hci_raw_queue; #if 0 static struct mtx ng_btsocket_hci_raw_queue_mtx; static struct task ng_btsocket_hci_raw_task; #endif static LIST_HEAD(, ng_btsocket_hci_raw_pcb) ng_btsocket_hci_raw_sockets; #if 0 static struct mtx ng_btsocket_hci_raw_sockets_mtx; #endif static u_int32_t ng_btsocket_hci_raw_token; #if 0 static struct mtx ng_btsocket_hci_raw_token_mtx; #endif static struct ng_btsocket_hci_raw_sec_filter *ng_btsocket_hci_raw_sec_filter; extern struct ifqueue btintrq; /* Debug */ #define NG_BTSOCKET_HCI_RAW_INFO \ if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_INFO_LEVEL) \ printf #define NG_BTSOCKET_HCI_RAW_WARN \ if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_WARN_LEVEL) \ printf #define NG_BTSOCKET_HCI_RAW_ERR \ if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ERR_LEVEL) \ printf #define NG_BTSOCKET_HCI_RAW_ALERT \ if (ng_btsocket_hci_raw_debug_level >= NG_BTSOCKET_ALERT_LEVEL) \ printf #if 0 /**************************************************************************** **************************************************************************** ** Netgraph specific **************************************************************************** ****************************************************************************/ /* * Netgraph node constructor. Do not allow to create node of this type. */ int ng_btsocket_hci_raw_node_constructor(node_p node) { return (EINVAL); } /* ng_btsocket_hci_raw_node_constructor */ /* * Netgraph node destructor. Just let old node go and create new fresh one. */ int ng_btsocket_hci_raw_node_shutdown(node_p node) { int error = 0; NG_NODE_UNREF(node); error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); if (error != 0) { NG_BTSOCKET_HCI_RAW_ALERT( "%s: Could not create Netgraph node, error=%d\n", __func__, error); ng_btsocket_hci_raw_node = NULL; return (ENOMEM); } error = ng_name_node(ng_btsocket_hci_raw_node, NG_BTSOCKET_HCI_RAW_NODE_TYPE); if (error != 0) { NG_BTSOCKET_HCI_RAW_ALERT( "%s: Could not name Netgraph node, error=%d\n", __func__, error); NG_NODE_UNREF(ng_btsocket_hci_raw_node); ng_btsocket_hci_raw_node = NULL; return (EINVAL); } return (0); } /* ng_btsocket_hci_raw_node_shutdown */ /* * Create new hook. Just say "yes" */ int ng_btsocket_hci_raw_node_newhook(node_p node, hook_p hook, char const *name) { return (0); } /* ng_btsocket_hci_raw_node_newhook */ /* * Connect hook. Just say "yes" */ int ng_btsocket_hci_raw_node_connect(hook_p hook) { return (0); } /* ng_btsocket_hci_raw_node_connect */ /* * Disconnect hook */ int ng_btsocket_hci_raw_node_disconnect(hook_p hook) { return (0); } /* ng_btsocket_hci_raw_node_disconnect */ /* * Receive control message. * Make sure it is a message from HCI node and it is a response. * Enqueue item and schedule input task. */ int ng_btsocket_hci_raw_node_rcvmsg(node_p node, item_p item, hook_p lasthook) { struct ng_mesg *msg = NGI_MSG(item); /* item still has message */ int empty, error = 0; mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); empty = LIST_EMPTY(&ng_btsocket_hci_raw_sockets); mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); if (empty) { NG_FREE_ITEM(item); return (0); } if (msg != NULL && msg->header.typecookie == NGM_HCI_COOKIE && msg->header.flags & NGF_RESP) { if (msg->header.token == 0) { NG_FREE_ITEM(item); return (0); } mtx_lock(&ng_btsocket_hci_raw_queue_mtx); if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { NG_BTSOCKET_HCI_RAW_ERR( "%s: Input queue is full\n", __func__); NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); NG_FREE_ITEM(item); error = ENOBUFS; } else { NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); error = ng_btsocket_hci_raw_wakeup_input_task(); } mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); } else { NG_FREE_ITEM(item); error = EINVAL; } return (error); } /* ng_btsocket_hci_raw_node_rcvmsg */ #endif /* * Receive packet from the one of our hook. * Prepend every packet with sockaddr_hci and record sender's node name. * Enqueue item and schedule input task. */ int ng_btsocket_hci_raw_node_rcvdata(struct ifnet *ifp, struct mbuf *m) { struct mbuf *nam = NULL; int empty, error; int s; mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); empty = LIST_EMPTY(&ng_btsocket_hci_raw_sockets); mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); if (empty) { #if 0 NG_FREE_ITEM(item); #endif return (0); } MGET(nam, M_DONTWAIT, MT_SONAME); if (nam != NULL) { struct sockaddr_hci *sa = mtod(nam, struct sockaddr_hci *); nam->m_len = sizeof(struct sockaddr_hci); sa->hci_len = sizeof(*sa); sa->hci_family = AF_BLUETOOTH; #if 0 strlcpy(sa->hci_node, NG_PEER_NODE_NAME(hook), sizeof(sa->hci_node)); #endif strlcpy(sa->hci_node, ifp->if_xname, sizeof(sa->hci_node)); #if 0 NGI_GET_M(item, nam->m_next); NGI_M(item) = nam; #endif nam->m_next = m; mtx_lock(&ng_btsocket_hci_raw_queue_mtx); if (NG_BT_ITEMQ_FULL(&ng_btsocket_hci_raw_queue)) { NG_BTSOCKET_HCI_RAW_ERR( "%s: Input queue is full\n", __func__); NG_BT_ITEMQ_DROP(&ng_btsocket_hci_raw_queue); #if 0 NG_FREE_ITEM(item); #endif error = ENOBUFS; } else { #if 0 NG_BT_ITEMQ_ENQUEUE(&ng_btsocket_hci_raw_queue, item); error = ng_btsocket_hci_raw_wakeup_input_task(); #endif s = splimp(); IF_INPUT_ENQUEUE(&btintrq, nam); splx(s); schednetisr(NETISR_BT); } mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); } else { NG_BTSOCKET_HCI_RAW_ERR( "%s: Failed to allocate address mbuf\n", __func__); #if 0 NG_FREE_ITEM(item); #endif error = ENOBUFS; } return (error); } /* ng_btsocket_hci_raw_node_rcvdata */ /**************************************************************************** **************************************************************************** ** Sockets specific **************************************************************************** ****************************************************************************/ /* * Get next token. We need token to avoid theoretical race where process * submits ioctl() message then interrupts ioctl() and re-submits another * ioctl() on the same socket *before* first ioctl() complete. */ #if 0 void ng_btsocket_hci_raw_get_token(u_int32_t *token) { mtx_lock(&ng_btsocket_hci_raw_token_mtx); if (++ ng_btsocket_hci_raw_token == 0) ng_btsocket_hci_raw_token = 1; *token = ng_btsocket_hci_raw_token; mtx_unlock(&ng_btsocket_hci_raw_token_mtx); } /* ng_btsocket_hci_raw_get_token */ #endif /* * Send Netgraph message to the node - do not expect reply */ int ng_btsocket_hci_raw_send_ngmsg(char *path, int cmd, void *arg, int arglen) { #if 0 struct ng_mesg *msg = NULL; int error = 0; NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, arglen, M_NOWAIT); if (msg == NULL) return (ENOMEM); if (arg != NULL && arglen > 0) bcopy(arg, msg->data, arglen); NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); return (error); #endif return (0); } /* ng_btsocket_hci_raw_send_ngmsg */ /* * Send Netgraph message to the node (no data) and wait for reply */ int ng_btsocket_hci_raw_send_sync_ngmsg(ng_btsocket_hci_raw_pcb_p pcb, char *path, int cmd, void *rsp, int rsplen) { #if 0 struct ng_mesg *msg = NULL; int error = 0; mtx_assert(&pcb->pcb_mtx, MA_OWNED); NG_MKMESSAGE(msg, NGM_HCI_COOKIE, cmd, 0, M_NOWAIT); if (msg == NULL) return (ENOMEM); ng_btsocket_hci_raw_get_token(&msg->header.token); pcb->token = msg->header.token; pcb->msg = NULL; NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); if (error != 0) { pcb->token = 0; return (error); } error = msleep(&pcb->msg, &pcb->pcb_mtx, PZERO|PCATCH, "hcictl", ng_btsocket_hci_raw_ioctl_timeout * hz); pcb->token = 0; if (error != 0) return (error); if (pcb->msg != NULL && pcb->msg->header.cmd == cmd) bcopy(pcb->msg->data, rsp, rsplen); else error = EINVAL; NG_FREE_MSG(pcb->msg); /* checks for != NULL */ #endif return (0); } /* ng_btsocket_hci_raw_send_sync_ngmsg */ /* * Create control information for the packet */ void ng_btsocket_hci_raw_savctl(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf **ctl, struct mbuf *m) { int dir; #if 0 struct timeval tv; #endif mtx_assert(&pcb->pcb_mtx, MA_OWNED); if (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION) { dir = (m->m_flags & M_PROTO1)? 1 : 0; *ctl = sbcreatecontrol((caddr_t) &dir, sizeof(dir), SCM_HCI_RAW_DIRECTION, SOL_HCI_RAW); if (*ctl != NULL) ctl = &((*ctl)->m_next); } #if 0 if (pcb->so->so_options & SO_TIMESTAMP) { microtime(&tv); *ctl = sbcreatecontrol((caddr_t) &tv, sizeof(tv), SCM_TIMESTAMP, SOL_SOCKET); if (*ctl != NULL) ctl = &((*ctl)->m_next); } #endif } /* ng_btsocket_hci_raw_savctl */ /* * Raw HCI sockets data input routine */ void ng_btsocket_hci_raw_data_input(struct mbuf *nam) { ng_btsocket_hci_raw_pcb_p pcb = NULL; struct mbuf *m0 = NULL, *m = NULL; struct sockaddr_hci *sa = NULL; m0 = nam->m_next; nam->m_next = NULL; KASSERT((nam->m_type == MT_SONAME), ("%s: m_type=%d\n", __func__, nam->m_type)); KASSERT((m0->m_flags & M_PKTHDR), ("%s: m_flags=%#x\n", __func__, m0->m_flags)); sa = mtod(nam, struct sockaddr_hci *); mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { mtx_lock(&pcb->pcb_mtx); /* * If socket was bound then check address and * make sure it matches. */ if (pcb->addr.hci_node[0] != 0 && strcmp(sa->hci_node, pcb->addr.hci_node) != 0) goto next; /* * Check packet against filters * XXX do we have to call m_pullup() here? */ #if 0 if (ng_btsocket_hci_raw_filter(pcb, m0, 1) != 0) goto next; #endif /* * Make a copy of the packet, append to the socket's * receive queue and wakeup socket. sbappendaddr() * will check if socket has enough buffer space. */ #if 0 m = m_dup(m0, M_DONTWAIT); #endif m = m_copym2(m0, 0, M_COPYALL, M_DONTWAIT); if (m != NULL) { struct mbuf *ctl = NULL; ng_btsocket_hci_raw_savctl(pcb, &ctl, m); if (sbappendaddr(&pcb->so->so_rcv, (struct sockaddr *) sa, m, ctl)) { sorwakeup(pcb->so); } else { NG_BTSOCKET_HCI_RAW_INFO( "%s: sbappendaddr() failed\n", __func__); NG_FREE_M(m); NG_FREE_M(ctl); } } next: mtx_unlock(&pcb->pcb_mtx); } mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); NG_FREE_M(nam); NG_FREE_M(m0); } /* ng_btsocket_hci_raw_data_input */ #if 0 /* * Raw HCI sockets message input routine */ void ng_btsocket_hci_raw_msg_input(struct ng_mesg *msg) { ng_btsocket_hci_raw_pcb_p pcb = NULL; mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); LIST_FOREACH(pcb, &ng_btsocket_hci_raw_sockets, next) { mtx_lock(&pcb->pcb_mtx); if (msg->header.token == pcb->token) { pcb->msg = msg; wakeup(&pcb->msg); mtx_unlock(&pcb->pcb_mtx); mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); return; } mtx_unlock(&pcb->pcb_mtx); } mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); #if 0 NG_FREE_MSG(msg); /* checks for != NULL */ #endif } /* ng_btsocket_hci_raw_msg_input */ #endif #if 0 /* * Raw HCI sockets input routines */ void ng_btsocket_hci_raw_input(void *context, int pending) { item_p item = NULL; for (;;) { mtx_lock(&ng_btsocket_hci_raw_queue_mtx); NG_BT_ITEMQ_DEQUEUE(&ng_btsocket_hci_raw_queue, item); mtx_unlock(&ng_btsocket_hci_raw_queue_mtx); if (item == NULL) break; switch(item->el_flags & NGQF_TYPE) { case NGQF_DATA: { struct mbuf *m = NULL; NGI_GET_M(item, m); ng_btsocket_hci_raw_data_input(m); } break; case NGQF_MESG: { struct ng_mesg *msg = NULL; NGI_GET_MSG(item, msg); ng_btsocket_hci_raw_msg_input(msg); } break; default: KASSERT(0, ("%s: invalid item type=%ld\n", __func__, (item->el_flags & NGQF_TYPE))); break; } NG_FREE_ITEM(item); } } /* ng_btsocket_hci_raw_input */ #endif /* * Raw HCI sockets output routine */ void ng_btsocket_hci_raw_output(void *arg1, int arg2) { struct mbuf *nam = (struct mbuf *) arg1, *m = NULL; struct sockaddr_hci *sa = NULL; struct ifnet *ifp; int error; int s; m = nam->m_next; nam->m_next = NULL; KASSERT((nam->m_type == MT_SONAME), ("%s: m_type=%d\n", __func__, nam->m_type)); KASSERT((m->m_flags & M_PKTHDR), ("%s: m_flags=%#x\n", __func__, m->m_flags)); sa = mtod(nam, struct sockaddr_hci *); /* * Find downstream hook * XXX For now access node hook list directly. Should be safe because * we used ng_send_fn() and we should have exclusive lock on the node. */ #if 0 LIST_FOREACH(hook, &node->nd_hooks, hk_hooks) { if (hook == NULL || NG_HOOK_NOT_VALID(hook) || NG_NODE_NOT_VALID(NG_PEER_NODE(hook))) continue; if (strcmp(sa->hci_node, NG_PEER_NODE_NAME(hook)) == 0) { NG_SEND_DATA_ONLY(error, hook, m); /* sets m to NULL */ break; } } #endif TAILQ_FOREACH(ifp, &ifnet, if_list) { if (ifp->if_type != IFT_BLUETOOTH) continue; if (strcmp(sa->hci_node, ifp->if_xname) == 0) { s = splimp(); IFQ_ENQUEUE(&ifp->if_snd, m, NULL, error); if (error) { splx(s); return; } if ((ifp->if_flags & IFF_OACTIVE) == 0) (*ifp->if_start)(ifp); splx(s); break; } } NG_FREE_M(nam); /* check for != NULL */ #if 0 NG_FREE_M(m); #endif } /* ng_btsocket_hci_raw_output */ /* * Check frame against security and socket filters. * d (direction bit) == 1 means incoming frame. */ int ng_btsocket_hci_raw_filter(ng_btsocket_hci_raw_pcb_p pcb, struct mbuf *m, int d) { int type, event, opcode; mtx_assert(&pcb->pcb_mtx, MA_OWNED); switch ((type = *mtod(m, u_int8_t *))) { case NG_HCI_CMD_PKT: if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) { opcode = letoh16(mtod(m, ng_hci_cmd_pkt_t *)->opcode); if (!bit_test( ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF(opcode) - 1], NG_HCI_OCF(opcode) - 1)) return (EPERM); } if (d && !bit_test(pcb->filter.packet_mask, NG_HCI_CMD_PKT - 1)) return (EPERM); break; case NG_HCI_ACL_DATA_PKT: case NG_HCI_SCO_DATA_PKT: if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) || !bit_test(pcb->filter.packet_mask, type - 1) || !d) return (EPERM); break; case NG_HCI_EVENT_PKT: if (!d) return (EINVAL); event = mtod(m, ng_hci_event_pkt_t *)->event - 1; if (!(pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED)) if (!bit_test(ng_btsocket_hci_raw_sec_filter->events, event)) return (EPERM); if (!bit_test(pcb->filter.event_mask, event)) return (EPERM); break; default: return (EINVAL); } return (0); } /* ng_btsocket_hci_raw_filter */ /* * Initialize everything */ void hci_raw_init(void) { bitstr_t *f = NULL; #if 0 int error = 0; #endif #if 0 ng_btsocket_hci_raw_node = NULL; #endif ng_btsocket_hci_raw_debug_level = NG_BTSOCKET_WARN_LEVEL; ng_btsocket_hci_raw_ioctl_timeout = 5; #if 0 /* Register Netgraph node type */ error = ng_newtype(&typestruct); if (error != 0) { NG_BTSOCKET_HCI_RAW_ALERT( "%s: Could not register Netgraph node type, error=%d\n", __func__, error); return; } /* Create Netgrapg node */ error = ng_make_node_common(&typestruct, &ng_btsocket_hci_raw_node); if (error != 0) { NG_BTSOCKET_HCI_RAW_ALERT( "%s: Could not create Netgraph node, error=%d\n", __func__, error); ng_btsocket_hci_raw_node = NULL; return; } error = ng_name_node(ng_btsocket_hci_raw_node, NG_BTSOCKET_HCI_RAW_NODE_TYPE); if (error != 0) { NG_BTSOCKET_HCI_RAW_ALERT( "%s: Could not name Netgraph node, error=%d\n", __func__, error); NG_NODE_UNREF(ng_btsocket_hci_raw_node); ng_btsocket_hci_raw_node = NULL; return; } #endif /* Create input queue */ NG_BT_ITEMQ_INIT(&ng_btsocket_hci_raw_queue, ifqmaxlen); mtx_init(&ng_btsocket_hci_raw_queue_mtx, "btsocks_hci_raw_queue_mtx", NULL, MTX_DEF); #if 0 TASK_INIT(&ng_btsocket_hci_raw_task, 0, ng_btsocket_hci_raw_input, NULL); #endif /* Create list of sockets */ LIST_INIT(&ng_btsocket_hci_raw_sockets); mtx_init(&ng_btsocket_hci_raw_sockets_mtx, "btsocks_hci_raw_sockets_mtx", NULL, MTX_DEF); /* Tokens */ ng_btsocket_hci_raw_token = 0; mtx_init(&ng_btsocket_hci_raw_token_mtx, "btsocks_hci_raw_token_mtx", NULL, MTX_DEF); /* * Security filter * XXX never FREE()ed */ ng_btsocket_hci_raw_sec_filter = NULL; MALLOC(ng_btsocket_hci_raw_sec_filter, struct ng_btsocket_hci_raw_sec_filter *, sizeof(struct ng_btsocket_hci_raw_sec_filter), M_BLUETOOTH, M_NOWAIT); if (ng_btsocket_hci_raw_sec_filter == NULL) { printf("%s: Could not allocate security filter!\n", __func__); return; } bzero(ng_btsocket_hci_raw_sec_filter, sizeof(struct ng_btsocket_hci_raw_sec_filter)); /* * XXX How paranoid can we get? * * Initialize security filter. If bit is set in the mask then * unprivileged socket is allowed to send (receive) this command * (event). */ /* Enable all events */ memset(&ng_btsocket_hci_raw_sec_filter->events, 0xff, sizeof(ng_btsocket_hci_raw_sec_filter->events)/ sizeof(ng_btsocket_hci_raw_sec_filter->events[0])); /* Disable some critical events */ f = ng_btsocket_hci_raw_sec_filter->events; bit_clear(f, NG_HCI_EVENT_RETURN_LINK_KEYS - 1); bit_clear(f, NG_HCI_EVENT_LINK_KEY_NOTIFICATION - 1); bit_clear(f, NG_HCI_EVENT_VENDOR - 1); /* Commands - Link control */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_CONTROL-1]; bit_set(f, NG_HCI_OCF_INQUIRY - 1); bit_set(f, NG_HCI_OCF_INQUIRY_CANCEL - 1); bit_set(f, NG_HCI_OCF_PERIODIC_INQUIRY - 1); bit_set(f, NG_HCI_OCF_EXIT_PERIODIC_INQUIRY - 1); bit_set(f, NG_HCI_OCF_REMOTE_NAME_REQ - 1); bit_set(f, NG_HCI_OCF_READ_REMOTE_FEATURES - 1); bit_set(f, NG_HCI_OCF_READ_REMOTE_VER_INFO - 1); bit_set(f, NG_HCI_OCF_READ_CLOCK_OFFSET - 1); /* Commands - Link policy */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_LINK_POLICY-1]; bit_set(f, NG_HCI_OCF_ROLE_DISCOVERY - 1); bit_set(f, NG_HCI_OCF_READ_LINK_POLICY_SETTINGS - 1); /* Commands - Host controller and baseband */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_HC_BASEBAND-1]; bit_set(f, NG_HCI_OCF_READ_PIN_TYPE - 1); bit_set(f, NG_HCI_OCF_READ_LOCAL_NAME - 1); bit_set(f, NG_HCI_OCF_READ_CON_ACCEPT_TIMO - 1); bit_set(f, NG_HCI_OCF_READ_PAGE_TIMO - 1); bit_set(f, NG_HCI_OCF_READ_SCAN_ENABLE - 1); bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_ACTIVITY - 1); bit_set(f, NG_HCI_OCF_READ_INQUIRY_SCAN_ACTIVITY - 1); bit_set(f, NG_HCI_OCF_READ_AUTH_ENABLE - 1); bit_set(f, NG_HCI_OCF_READ_ENCRYPTION_MODE - 1); bit_set(f, NG_HCI_OCF_READ_UNIT_CLASS - 1); bit_set(f, NG_HCI_OCF_READ_VOICE_SETTINGS - 1); bit_set(f, NG_HCI_OCF_READ_AUTO_FLUSH_TIMO - 1); bit_set(f, NG_HCI_OCF_READ_NUM_BROADCAST_RETRANS - 1); bit_set(f, NG_HCI_OCF_READ_HOLD_MODE_ACTIVITY - 1); bit_set(f, NG_HCI_OCF_READ_XMIT_LEVEL - 1); bit_set(f, NG_HCI_OCF_READ_SCO_FLOW_CONTROL - 1); bit_set(f, NG_HCI_OCF_READ_LINK_SUPERVISION_TIMO - 1); bit_set(f, NG_HCI_OCF_READ_SUPPORTED_IAC_NUM - 1); bit_set(f, NG_HCI_OCF_READ_IAC_LAP - 1); bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN_PERIOD - 1); bit_set(f, NG_HCI_OCF_READ_PAGE_SCAN - 1); /* Commands - Informational */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_INFO - 1]; bit_set(f, NG_HCI_OCF_READ_LOCAL_VER - 1); bit_set(f, NG_HCI_OCF_READ_LOCAL_FEATURES - 1); bit_set(f, NG_HCI_OCF_READ_BUFFER_SIZE - 1); bit_set(f, NG_HCI_OCF_READ_COUNTRY_CODE - 1); bit_set(f, NG_HCI_OCF_READ_BDADDR - 1); /* Commands - Status */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_STATUS - 1]; bit_set(f, NG_HCI_OCF_READ_FAILED_CONTACT_CNTR - 1); bit_set(f, NG_HCI_OCF_GET_LINK_QUALITY - 1); bit_set(f, NG_HCI_OCF_READ_RSSI - 1); /* Commands - Testing */ f = ng_btsocket_hci_raw_sec_filter->commands[NG_HCI_OGF_TESTING - 1]; bit_set(f, NG_HCI_OCF_READ_LOOPBACK_MODE - 1); } /* ng_btsocket_hci_raw_init */ /* * Abort connection on socket */ int ng_btsocket_hci_raw_abort(struct socket *so) { return (ng_btsocket_hci_raw_detach(so)); } /* ng_btsocket_hci_raw_abort */ /* * Create new raw HCI socket */ int ng_btsocket_hci_raw_attach(struct socket *so, int proto, struct proc *p) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); int error = 0; if (pcb != NULL) return (EISCONN); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EPROTONOSUPPORT); #endif if (proto != BLUETOOTH_PROTO_HCI) return (EPROTONOSUPPORT); if (so->so_type != SOCK_RAW) return (ESOCKTNOSUPPORT); error = soreserve(so, NG_BTSOCKET_HCI_RAW_SENDSPACE, NG_BTSOCKET_HCI_RAW_RECVSPACE); if (error != 0) return (error); MALLOC(pcb, ng_btsocket_hci_raw_pcb_p, sizeof(*pcb), M_BLUETOOTH, M_NOWAIT); if (pcb == NULL) return (ENOMEM); bzero(pcb, sizeof(*pcb)); so->so_pcb = (caddr_t) pcb; pcb->so = so; if (suser(p, 0) == 0) pcb->flags |= NG_BTSOCKET_HCI_RAW_PRIVILEGED; /* * Set default socket filter. By default socket only accepts HCI * Command_Complete and Command_Status event packets. */ bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_COMPL - 1); bit_set(pcb->filter.event_mask, NG_HCI_EVENT_COMMAND_STATUS - 1); mtx_init(&pcb->pcb_mtx, "btsocks_hci_raw_pcb_mtx", NULL, MTX_DEF); mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); LIST_INSERT_HEAD(&ng_btsocket_hci_raw_sockets, pcb, next); mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); return (0); } /* ng_btsocket_hci_raw_attach */ /* * Bind raw HCI socket */ int ng_btsocket_hci_raw_bind(struct socket *so, struct sockaddr *nam, struct proc *p) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif if (sa == NULL) return (EINVAL); if (sa->hci_family != AF_BLUETOOTH) return (EAFNOSUPPORT); if (sa->hci_len != sizeof(*sa)) return (EINVAL); if (sa->hci_node[0] == 0) return (EINVAL); bcopy(sa, &pcb->addr, sizeof(pcb->addr)); return (0); } /* ng_btsocket_hci_raw_bind */ /* * Connect raw HCI socket */ int ng_btsocket_hci_raw_connect(struct socket *so, struct sockaddr *nam, struct proc *p) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct sockaddr_hci *sa = (struct sockaddr_hci *) nam; if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif if (sa == NULL) return (EINVAL); if (sa->hci_family != AF_BLUETOOTH) return (EAFNOSUPPORT); if (sa->hci_len != sizeof(*sa)) return (EINVAL); if (sa->hci_node[0] == 0) return (EDESTADDRREQ); if (bcmp(sa, &pcb->addr, sizeof(pcb->addr)) != 0) return (EADDRNOTAVAIL); soisconnected(so); return (0); } /* ng_btsocket_hci_raw_connect */ /* * Process ioctl on socket */ int ng_btsocket_hci_raw_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, struct proc *p) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); char path[256]; #if 0 struct ng_mesg *msg = NULL; #endif int error = 0; if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif mtx_lock(&pcb->pcb_mtx); /* Check if we have device name */ if (pcb->addr.hci_node[0] == 0) { mtx_unlock(&pcb->pcb_mtx); return (EHOSTUNREACH); } /* Check if we have pending ioctl() */ if (pcb->token != 0) { mtx_unlock(&pcb->pcb_mtx); return (EBUSY); } snprintf(path, sizeof(path), "%s:", pcb->addr.hci_node); switch (cmd) { case SIOC_HCI_RAW_NODE_GET_STATE: { struct ng_btsocket_hci_raw_node_state *p = (struct ng_btsocket_hci_raw_node_state *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_STATE, &p->state, sizeof(p->state)); } break; case SIOC_HCI_RAW_NODE_INIT: if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_INIT, NULL, 0); else error = EPERM; break; case SIOC_HCI_RAW_NODE_GET_DEBUG: { struct ng_btsocket_hci_raw_node_debug *p = (struct ng_btsocket_hci_raw_node_debug *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_DEBUG, &p->debug, sizeof(p->debug)); } break; case SIOC_HCI_RAW_NODE_SET_DEBUG: { struct ng_btsocket_hci_raw_node_debug *p = (struct ng_btsocket_hci_raw_node_debug *) data; if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_SET_DEBUG, &p->debug, sizeof(p->debug)); else error = EPERM; } break; case SIOC_HCI_RAW_NODE_GET_BUFFER: { struct ng_btsocket_hci_raw_node_buffer *p = (struct ng_btsocket_hci_raw_node_buffer *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_BUFFER, &p->buffer, sizeof(p->buffer)); } break; case SIOC_HCI_RAW_NODE_GET_BDADDR: { struct ng_btsocket_hci_raw_node_bdaddr *p = (struct ng_btsocket_hci_raw_node_bdaddr *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_BDADDR, &p->bdaddr, sizeof(p->bdaddr)); } break; case SIOC_HCI_RAW_NODE_GET_FEATURES: { struct ng_btsocket_hci_raw_node_features *p = (struct ng_btsocket_hci_raw_node_features *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_FEATURES, &p->features, sizeof(p->features)); } break; case SIOC_HCI_RAW_NODE_GET_STAT: { struct ng_btsocket_hci_raw_node_stat *p = (struct ng_btsocket_hci_raw_node_stat *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_STAT, &p->stat, sizeof(p->stat)); } break; case SIOC_HCI_RAW_NODE_RESET_STAT: if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_RESET_STAT, NULL, 0); else error = EPERM; break; case SIOC_HCI_RAW_NODE_FLUSH_NEIGHBOR_CACHE: if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_FLUSH_NEIGHBOR_CACHE, NULL, 0); else error = EPERM; break; case SIOC_HCI_RAW_NODE_GET_NEIGHBOR_CACHE: { struct ng_btsocket_hci_raw_node_neighbor_cache *p = (struct ng_btsocket_hci_raw_node_neighbor_cache *) data; #if 0 ng_hci_node_get_neighbor_cache_ep *p1 = NULL; ng_hci_node_neighbor_cache_entry_ep *p2 = NULL; #endif if (p->num_entries <= 0 || p->num_entries > NG_HCI_MAX_NEIGHBOR_NUM || p->entries == NULL) { error = EINVAL; break; } #if 0 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_NEIGHBOR_CACHE, 0, M_NOWAIT); if (msg == NULL) { error = ENOMEM; break; } ng_btsocket_hci_raw_get_token(&msg->header.token); pcb->token = msg->header.token; pcb->msg = NULL; NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); if (error != 0) { pcb->token = 0; break; } #endif error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", ng_btsocket_hci_raw_ioctl_timeout * hz); pcb->token = 0; if (error != 0) break; #if 0 if (pcb->msg != NULL && pcb->msg->header.cmd == NGM_HCI_NODE_GET_NEIGHBOR_CACHE) { /* Return data back to user space */ p1 = (ng_hci_node_get_neighbor_cache_ep *) (pcb->msg->data); p2 = (ng_hci_node_neighbor_cache_entry_ep *) (p1 + 1); p->num_entries = min(p->num_entries, p1->num_entries); if (p->num_entries > 0) error = copyout((caddr_t) p2, (caddr_t) p->entries, p->num_entries * sizeof(*p2)); } else error = EINVAL; #endif #if 0 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ #endif }break; case SIOC_HCI_RAW_NODE_GET_CON_LIST: { struct ng_btsocket_hci_raw_con_list *p = (struct ng_btsocket_hci_raw_con_list *) data; #if 0 ng_hci_node_con_list_ep *p1 = NULL; ng_hci_node_con_ep *p2 = NULL; #endif if (p->num_connections == 0 || p->num_connections > NG_HCI_MAX_CON_NUM || p->connections == NULL) { error = EINVAL; break; } #if 0 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_NODE_GET_CON_LIST, 0, M_NOWAIT); if (msg == NULL) { error = ENOMEM; break; } ng_btsocket_hci_raw_get_token(&msg->header.token); pcb->token = msg->header.token; pcb->msg = NULL; NG_SEND_MSG_PATH(error, ng_btsocket_hci_raw_node, msg, path, 0); if (error != 0) { pcb->token = 0; break; } #endif error = tsleep(&pcb->msg, PZERO|PCATCH, "hcictl", ng_btsocket_hci_raw_ioctl_timeout * hz); pcb->token = 0; if (error != 0) break; #if 0 if (pcb->msg != NULL && pcb->msg->header.cmd == NGM_HCI_NODE_GET_CON_LIST) { /* Return data back to user space */ p1 = (ng_hci_node_con_list_ep *)(pcb->msg->data); p2 = (ng_hci_node_con_ep *)(p1 + 1); p->num_connections = min(p->num_connections, p1->num_connections); if (p->num_connections > 0) error = copyout((caddr_t) p2, (caddr_t) p->connections, p->num_connections * sizeof(*p2)); } else error = EINVAL; #endif #if 0 NG_FREE_MSG(pcb->msg); /* checks for != NULL */ #endif } break; case SIOC_HCI_RAW_NODE_GET_LINK_POLICY_MASK: { struct ng_btsocket_hci_raw_node_link_policy_mask *p = (struct ng_btsocket_hci_raw_node_link_policy_mask *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_LINK_POLICY_SETTINGS_MASK, &p->policy_mask, sizeof(p->policy_mask)); } break; case SIOC_HCI_RAW_NODE_SET_LINK_POLICY_MASK: { struct ng_btsocket_hci_raw_node_link_policy_mask *p = (struct ng_btsocket_hci_raw_node_link_policy_mask *) data; if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_SET_LINK_POLICY_SETTINGS_MASK, &p->policy_mask, sizeof(p->policy_mask)); else error = EPERM; } break; case SIOC_HCI_RAW_NODE_GET_PACKET_MASK: { struct ng_btsocket_hci_raw_node_packet_mask *p = (struct ng_btsocket_hci_raw_node_packet_mask *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_PACKET_MASK, &p->packet_mask, sizeof(p->packet_mask)); } break; case SIOC_HCI_RAW_NODE_SET_PACKET_MASK: { struct ng_btsocket_hci_raw_node_packet_mask *p = (struct ng_btsocket_hci_raw_node_packet_mask *) data; if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_SET_PACKET_MASK, &p->packet_mask, sizeof(p->packet_mask)); else error = EPERM; } break; case SIOC_HCI_RAW_NODE_GET_ROLE_SWITCH: { struct ng_btsocket_hci_raw_node_role_switch *p = (struct ng_btsocket_hci_raw_node_role_switch *) data; error = ng_btsocket_hci_raw_send_sync_ngmsg(pcb, path, NGM_HCI_NODE_GET_ROLE_SWITCH, &p->role_switch, sizeof(p->role_switch)); } break; case SIOC_HCI_RAW_NODE_SET_ROLE_SWITCH: { struct ng_btsocket_hci_raw_node_role_switch *p = (struct ng_btsocket_hci_raw_node_role_switch *) data; if (pcb->flags & NG_BTSOCKET_HCI_RAW_PRIVILEGED) error = ng_btsocket_hci_raw_send_ngmsg(path, NGM_HCI_NODE_SET_ROLE_SWITCH, &p->role_switch, sizeof(p->role_switch)); else error = EPERM; } break; default: error = EINVAL; break; } mtx_unlock(&pcb->pcb_mtx); return (error); } /* ng_btsocket_hci_raw_control */ /* * Process getsockopt/setsockopt system calls */ int hci_raw_ctloutput(int op, struct socket *so, int level, int optname, struct mbuf **m) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct ng_btsocket_hci_raw_filter filter; int error = 0, dir; size_t len; if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif if (level != SOL_HCI_RAW) return (0); mtx_lock(&pcb->pcb_mtx); switch (op) { case PRCO_GETOPT: switch (optname) { case SO_HCI_RAW_FILTER: len = min((*m)->m_len, sizeof(pcb->filter)); bcopy(&pcb->filter, mtod(*m, void *), len); break; case SO_HCI_RAW_DIRECTION: len = min((*m)->m_len, sizeof(dir)); dir = (pcb->flags & NG_BTSOCKET_HCI_RAW_DIRECTION)?1:0; bcopy(&dir, mtod(*m, void *), len); break; default: error = EINVAL; break; } break; case PRCO_SETOPT: switch (optname) { case SO_HCI_RAW_FILTER: len = min((*m)->m_len, sizeof(pcb->filter)); bcopy(&filter, &pcb->filter, len); break; case SO_HCI_RAW_DIRECTION: len = min((*m)->m_len, sizeof(dir)); bcopy(mtod(*m, void *), &dir, len); if (dir) pcb->flags |= NG_BTSOCKET_HCI_RAW_DIRECTION; else pcb->flags &= ~NG_BTSOCKET_HCI_RAW_DIRECTION; break; default: error = EINVAL; break; } break; default: error = EINVAL; break; } mtx_unlock(&pcb->pcb_mtx); return (error); } /* ng_btsocket_hci_raw_ctloutput */ /* * Detach raw HCI socket */ int ng_btsocket_hci_raw_detach(struct socket *so) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif mtx_lock(&ng_btsocket_hci_raw_sockets_mtx); mtx_lock(&pcb->pcb_mtx); LIST_REMOVE(pcb, next); mtx_unlock(&pcb->pcb_mtx); mtx_unlock(&ng_btsocket_hci_raw_sockets_mtx); mtx_destroy(&pcb->pcb_mtx); bzero(pcb, sizeof(*pcb)); FREE(pcb, M_BLUETOOTH); ACCEPT_LOCK(); SOCK_LOCK(so); so->so_pcb = NULL; sofree(so); return (0); } /* ng_btsocket_hci_raw_detach */ /* * Disconnect raw HCI socket */ int ng_btsocket_hci_raw_disconnect(struct socket *so) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif soisdisconnected(so); return (0); } /* ng_btsocket_hci_raw_disconnect */ /* * Get socket peer's address */ int ng_btsocket_hci_raw_peeraddr(struct socket *so, struct sockaddr **nam) { return (ng_btsocket_hci_raw_sockaddr(so, nam)); } /* ng_btsocket_hci_raw_peeraddr */ /* * Send data */ int ng_btsocket_hci_raw_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *sa, struct mbuf *control, struct proc *p) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct mbuf *nam = NULL; int error = 0; #if 0 if (ng_btsocket_hci_raw_node == NULL) { error = ENETDOWN; goto drop; } #endif if (pcb == NULL) { error = EINVAL; goto drop; } if (control != NULL) { error = EINVAL; goto drop; } if (m->m_pkthdr.len < sizeof(ng_hci_cmd_pkt_t) || m->m_pkthdr.len > sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE) { error = EMSGSIZE; goto drop; } if (m->m_len < sizeof(ng_hci_cmd_pkt_t)) { if ((m = m_pullup(m, sizeof(ng_hci_cmd_pkt_t))) == NULL) { error = ENOBUFS; goto drop; } } if (*mtod(m, u_int8_t *) != NG_HCI_CMD_PKT) { error = EOPNOTSUPP; goto drop; } mtx_lock(&pcb->pcb_mtx); error = ng_btsocket_hci_raw_filter(pcb, m, 0); if (error != 0) { mtx_unlock(&pcb->pcb_mtx); goto drop; } if (sa == NULL) { if (pcb->addr.hci_node[0] == 0) { mtx_unlock(&pcb->pcb_mtx); error = EDESTADDRREQ; goto drop; } sa = (struct sockaddr *) &pcb->addr; } MGET(nam, M_DONTWAIT, MT_SONAME); if (nam == NULL) { mtx_unlock(&pcb->pcb_mtx); error = ENOBUFS; goto drop; } nam->m_len = sizeof(struct sockaddr_hci); bcopy(sa,mtod(nam, struct sockaddr_hci *),sizeof(struct sockaddr_hci)); nam->m_next = m; m = NULL; mtx_unlock(&pcb->pcb_mtx); #if 0 return (ng_send_fn(ng_btsocket_hci_raw_node, NULL, ng_btsocket_hci_raw_output, nam, 0)); #endif ng_btsocket_hci_raw_output(nam, 0); return (0); drop: NG_FREE_M(control); /* NG_FREE_M checks for != NULL */ NG_FREE_M(nam); NG_FREE_M(m); return (error); } /* ng_btsocket_hci_raw_send */ /* * Get socket address */ int ng_btsocket_hci_raw_sockaddr(struct socket *so, struct sockaddr **nam) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct sockaddr_hci sa; if (pcb == NULL) return (EINVAL); #if 0 if (ng_btsocket_hci_raw_node == NULL) return (EINVAL); #endif bzero(&sa, sizeof(sa)); sa.hci_len = sizeof(sa); sa.hci_family = AF_BLUETOOTH; strlcpy(sa.hci_node, pcb->addr.hci_node, sizeof(sa.hci_node)); #if 0 *nam = sodupsockaddr((struct sockaddr *) &sa, M_NOWAIT); #endif return ((*nam == NULL)? ENOMEM : 0); } /* ng_btsocket_hci_raw_sockaddr */ int hci_raw_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, struct mbuf *control) { ng_btsocket_hci_raw_pcb_p pcb = so2hci_raw_pcb(so); struct sockaddr *sa; int error = 0; /* XXX: restrict AF_BLUETOOTH sockets to root for now */ if ((error = suser(curproc, 0)) != 0) return (error); if (req == PRU_CONTROL) return (ng_btsocket_hci_raw_control(so, (u_long)m, (caddr_t)nam, (struct ifnet *)control, curproc)); if (pcb == NULL && req != PRU_ATTACH) { error = EINVAL; goto release; } switch (req) { case PRU_ATTACH: return (ng_btsocket_hci_raw_attach(so, so->so_proto->pr_protocol, curproc)); case PRU_DISCONNECT: if ((so->so_state & SS_ISCONNECTED) == 0) { error = ENOTCONN; break; } /* FALLTHROUGH */ case PRU_ABORT: soisdisconnected(so); /* FALLTHROUGH */ case PRU_DETACH: return (ng_btsocket_hci_raw_detach(so)); case PRU_BIND: sa = mtod(nam, struct sockaddr *); return (ng_btsocket_hci_raw_bind(so, sa, curproc)); case PRU_CONNECT: sa = mtod(nam, struct sockaddr *); return (ng_btsocket_hci_raw_connect(so, sa, curproc)); case PRU_CONNECT2: error = EOPNOTSUPP; break; case PRU_SHUTDOWN: socantsendmore(so); break; case PRU_SEND: sa = nam != NULL ? mtod(nam, struct sockaddr *) : NULL; return (ng_btsocket_hci_raw_send(so, 0, m, sa, control, curproc)); case PRU_SENSE: return (0); case PRU_RCVOOB: case PRU_RCVD: case PRU_LISTEN: case PRU_ACCEPT: case PRU_SENDOOB: error = EOPNOTSUPP; break; case PRU_SOCKADDR: sa = mtod(nam, struct sockaddr *); return (ng_btsocket_hci_raw_sockaddr(so, &sa)); case PRU_PEERADDR: sa = mtod(nam, struct sockaddr *); return (ng_btsocket_hci_raw_peeraddr(so, &sa)); default: panic("hci_raw_usrreq: unexpected request %d", req); } release: if (m != NULL) m_freem(m); return (error); }