static int bnep_sock_create(struct socket *sock, int protocol)
{
struct sock *sk;
BT_DBG("sock %p", sock);
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, &bnep_proto, 1);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock->ops = &bnep_sock_ops;
sock->state = SS_UNCONNECTED;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = protocol;
sk->sk_state = BT_OPEN;
return 0;
}
/**
* tipc_create - create a TIPC socket
* @sock: pre-allocated socket structure
* @protocol: protocol indicator (must be 0)
*
* This routine creates and attaches a 'struct sock' to the 'struct socket',
* then create and attaches a TIPC port to the 'struct sock' part.
*
* Returns 0 on success, errno otherwise
*/
static int tipc_create(struct socket *sock, int protocol)
{
struct tipc_sock *tsock;
struct tipc_port *port;
struct sock *sk;
u32 ref;
if (unlikely(protocol != 0))
return -EPROTONOSUPPORT;
ref = tipc_createport_raw(NULL, &dispatch, &wakeupdispatch, TIPC_LOW_IMPORTANCE);
if (unlikely(!ref))
return -ENOMEM;
sock->state = SS_UNCONNECTED;
switch (sock->type) {
case SOCK_STREAM:
sock->ops = &stream_ops;
break;
case SOCK_SEQPACKET:
sock->ops = &packet_ops;
break;
case SOCK_DGRAM:
tipc_set_portunreliable(ref, 1);
/* fall through */
case SOCK_RDM:
tipc_set_portunreturnable(ref, 1);
sock->ops = &msg_ops;
sock->state = SS_READY;
break;
default:
tipc_deleteport(ref);
return -EPROTOTYPE;
}
sk = sk_alloc(AF_TIPC, GFP_KERNEL, &tipc_proto);
if (!sk) {
tipc_deleteport(ref);
return -ENOMEM;
}
sock_init_data(sock, sk);
init_waitqueue_head(sk->sk_sleep);
sk->sk_rcvtimeo = 8 * HZ; /* default connect timeout = 8s */
tsock = tipc_sk(sk);
port = tipc_get_port(ref);
tsock->p = port;
port->usr_handle = tsock;
init_MUTEX(&tsock->sem);
dbg("sock_create: %x\n",tsock);
atomic_inc(&tipc_user_count);
return 0;
}
static int rawsock_create(struct net *net, struct socket *sock,
const struct nfc_protocol *nfc_proto)
{
struct sock *sk;
nfc_dbg("sock=%p", sock);
if (sock->type != SOCK_SEQPACKET)
return -ESOCKTNOSUPPORT;
sock->ops = &rawsock_ops;
sk = sk_alloc(net, PF_NFC, GFP_KERNEL, nfc_proto->proto);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sk->sk_protocol = nfc_proto->id;
sk->sk_destruct = rawsock_destruct;
sock->state = SS_UNCONNECTED;
INIT_WORK(&nfc_rawsock(sk)->tx_work, rawsock_tx_work);
nfc_rawsock(sk)->tx_work_scheduled = false;
return 0;
}
static int bnep_sock_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
struct sock *sk;
BT_DBG("sock %p", sock);
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &bnep_proto, kern);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock->ops = &bnep_sock_ops;
sock->state = SS_UNCONNECTED;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = protocol;
sk->sk_state = BT_OPEN;
bt_sock_link(&bnep_sk_list, sk);
return 0;
}
static int pn_socket_create(struct net *net, struct socket *sock, int protocol)
{
struct sock *sk;
struct pn_sock *pn;
struct phonet_protocol *pnp;
int err;
#if !defined (CONFIG_SAMSUNG_PHONE_SVNET) && !defined (CONFIG_SAMSUNG_PHONE_SVNET_MODULE)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
#endif
if (protocol == 0) {
/* Default protocol selection */
switch (sock->type) {
case SOCK_DGRAM:
protocol = PN_PROTO_PHONET;
break;
case SOCK_SEQPACKET:
protocol = PN_PROTO_PIPE;
break;
default:
return -EPROTONOSUPPORT;
}
}
pnp = phonet_proto_get(protocol);
if (pnp == NULL &&
request_module("net-pf-%d-proto-%d", PF_PHONET, protocol) == 0)
pnp = phonet_proto_get(protocol);
if (pnp == NULL)
return -EPROTONOSUPPORT;
if (sock->type != pnp->sock_type) {
err = -EPROTONOSUPPORT;
goto out;
}
sk = sk_alloc(net, PF_PHONET, GFP_KERNEL, pnp->prot);
if (sk == NULL) {
err = -ENOMEM;
goto out;
}
sock_init_data(sock, sk);
sock->state = SS_UNCONNECTED;
sock->ops = pnp->ops;
sk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
sk->sk_protocol = protocol;
pn = pn_sk(sk);
pn->sobject = 0;
pn->resource = 0;
sk->sk_prot->init(sk);
err = 0;
out:
phonet_proto_put(pnp);
return err;
}
static int
MksckCreate(struct net *net,
struct socket *sock,
int protocol,
int kern)
{
struct sock *sk;
uid_t currentUid = current_euid();
if (!(currentUid == 0 ||
currentUid == Mvpkm_vmwareUid)) {
pr_warn("MksckCreate: rejected from process %s " \
"tgid=%d, pid=%d euid:%d.\n",
current->comm,
task_tgid_vnr(current),
task_pid_vnr(current),
currentUid);
return -EPERM;
}
if (!sock)
return -EINVAL;
if (protocol)
return -EPROTONOSUPPORT;
switch (sock->type) {
case SOCK_DGRAM:
sock->ops = &mksckDgramOps;
break;
default:
return -ESOCKTNOSUPPORT;
}
sock->state = SS_UNCONNECTED;
sk = sk_alloc(net, mksckFamilyOps.family, GFP_KERNEL, &mksckProto);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sk->sk_type = SOCK_DGRAM;
sk->sk_destruct = MksckSkDestruct;
sk->sk_backlog_rcv = MksckBacklogRcv;
sk->sk_protinfo = NULL;
sock_reset_flag(sk, SOCK_DONE);
return 0;
}
/*
* Create a socket. Initialise the socket, blank the addresses
* set the state.
*/
static int ieee802154_create(struct net *net, struct socket *sock,
int protocol, int kern)
{
struct sock *sk;
int rc;
struct proto *proto;
const struct proto_ops *ops;
if (net != &init_net)
return -EAFNOSUPPORT;
switch (sock->type) {
case SOCK_RAW:
proto = &ieee802154_raw_prot;
ops = &ieee802154_raw_ops;
break;
case SOCK_DGRAM:
proto = &ieee802154_dgram_prot;
ops = &ieee802154_dgram_ops;
break;
default:
rc = -ESOCKTNOSUPPORT;
goto out;
}
rc = -ENOMEM;
sk = sk_alloc(net, PF_IEEE802154, GFP_KERNEL, proto);
if (!sk)
goto out;
rc = 0;
sock->ops = ops;
sock_init_data(sock, sk);
/* FIXME: sk->sk_destruct */
sk->sk_family = PF_IEEE802154;
/* Checksums on by default */
sock_set_flag(sk, SOCK_ZAPPED);
if (sk->sk_prot->hash)
sk->sk_prot->hash(sk);
if (sk->sk_prot->init) {
rc = sk->sk_prot->init(sk);
if (rc)
sk_common_release(sk);
}
out:
return rc;
}
static int unix_create(struct socket *sock, int protocol)
{
unix_socket *sk;
if(protocol && protocol != PF_UNIX)
return -EPROTONOSUPPORT;
sk=(unix_socket *)sk_alloc(GFP_KERNEL);
if(sk==NULL)
return -ENOMEM;
switch(sock->type)
{
case SOCK_STREAM:
break;
/*
* Believe it or not BSD has AF_UNIX, SOCK_RAW though
* nothing uses it.
*/
case SOCK_RAW:
sock->type=SOCK_DGRAM;
case SOCK_DGRAM:
break;
default:
sk_free(sk);
return -ESOCKTNOSUPPORT;
}
sk->type=sock->type;
init_timer(&sk->timer);
skb_queue_head_init(&sk->write_queue);
skb_queue_head_init(&sk->receive_queue);
skb_queue_head_init(&sk->back_log);
sk->protinfo.af_unix.family=AF_UNIX;
sk->protinfo.af_unix.inode=NULL;
sk->protinfo.af_unix.locks=1; /* Us */
sk->protinfo.af_unix.readsem=MUTEX; /* single task reading lock */
sk->rcvbuf=SK_RMEM_MAX;
sk->sndbuf=SK_WMEM_MAX;
sk->allocation=GFP_KERNEL;
sk->state=TCP_CLOSE;
sk->priority=SOPRI_NORMAL;
sk->state_change=def_callback1;
sk->data_ready=def_callback2;
sk->write_space=def_callback3;
sk->error_report=def_callback1;
sk->mtu=4096;
sk->socket=sock;
sock->data=(void *)sk;
sk->sleep=sock->wait;
unix_insert_socket(sk);
return 0;
}
/*
* create an RxRPC socket
*/
static int rxrpc_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
struct rxrpc_net *rxnet;
struct rxrpc_sock *rx;
struct sock *sk;
_enter("%p,%d", sock, protocol);
/* we support transport protocol UDP/UDP6 only */
if (protocol != PF_INET &&
IS_ENABLED(CONFIG_AF_RXRPC_IPV6) && protocol != PF_INET6)
return -EPROTONOSUPPORT;
if (sock->type != SOCK_DGRAM)
return -ESOCKTNOSUPPORT;
sock->ops = &rxrpc_rpc_ops;
sock->state = SS_UNCONNECTED;
sk = sk_alloc(net, PF_RXRPC, GFP_KERNEL, &rxrpc_proto, kern);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock_set_flag(sk, SOCK_RCU_FREE);
sk->sk_state = RXRPC_UNBOUND;
sk->sk_write_space = rxrpc_write_space;
sk->sk_max_ack_backlog = 0;
sk->sk_destruct = rxrpc_sock_destructor;
rx = rxrpc_sk(sk);
rx->family = protocol;
rx->calls = RB_ROOT;
spin_lock_init(&rx->incoming_lock);
INIT_LIST_HEAD(&rx->sock_calls);
INIT_LIST_HEAD(&rx->to_be_accepted);
INIT_LIST_HEAD(&rx->recvmsg_q);
rwlock_init(&rx->recvmsg_lock);
rwlock_init(&rx->call_lock);
memset(&rx->srx, 0, sizeof(rx->srx));
rxnet = rxrpc_net(sock_net(&rx->sk));
timer_reduce(&rxnet->peer_keepalive_timer, jiffies + 1);
_leave(" = 0 [%p]", rx);
return 0;
}
/**
* llc_sk_alloc - Allocates LLC sock
* @family: upper layer protocol family
* @priority: for allocation (%GFP_KERNEL, %GFP_ATOMIC, etc)
*
* Allocates a LLC sock and initializes it. Returns the new LLC sock
* or %NULL if there's no memory available for one
*/
struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority, struct proto *prot)
{
struct sock *sk = sk_alloc(net, family, priority, prot);
if (!sk)
goto out;
llc_sk_init(sk);
sock_init_data(NULL, sk);
#ifdef LLC_REFCNT_DEBUG
atomic_inc(&llc_sock_nr);
// printk(KERN_DEBUG "LLC socket %p created in %s, now we have %d alive\n", sk,
;
#endif
out:
return sk;
}
/*
* sys_socket -> sock_create -> __sock_create -> this
*/
static int raw_create(struct net *net, struct socket *sock, int protocol, int kern)
{
struct sock *sk;
int err;
/* init sock struct */
err = -ENOBUFS;
sk = sk_alloc(net, PF_RAW, GFP_KERNEL, &raw_proto);
if (sk == NULL)
goto out;
sock->ops = &raw_ops;
sock_init_data(sock, sk);
sk->sk_family = PF_RAW;
err = 0;
out:
return err;
}
static struct sock *nr_alloc_sock(void)
{
nr_cb *nr;
struct sock *sk = sk_alloc(PF_NETROM, GFP_ATOMIC, 1, NULL);
if (!sk)
goto out;
nr = sk->sk_protinfo = kmalloc(sizeof(*nr), GFP_ATOMIC);
if (!nr)
goto frees;
memset(nr, 0x00, sizeof(*nr));
nr->sk = sk;
out:
return sk;
frees:
sk_free(sk);
sk = NULL;
goto out;
}
static struct sock *nr_alloc_sock(void)
{
struct sock *sk;
nr_cb *nr;
if ((sk = sk_alloc(PF_NETROM, GFP_ATOMIC, 1)) == NULL)
return NULL;
if ((nr = kmalloc(sizeof(*nr), GFP_ATOMIC)) == NULL) {
sk_free(sk);
return NULL;
}
MOD_INC_USE_COUNT;
memset(nr, 0x00, sizeof(*nr));
sk->protinfo.nr = nr;
nr->sk = sk;
return sk;
}
int vcc_create(struct socket *sock, int protocol, int family)
{
struct sock *sk;
struct atm_vcc *vcc;
sock->sk = NULL;
if (sock->type == SOCK_STREAM)
return -EINVAL;
sk = sk_alloc(family, GFP_KERNEL, 1, NULL);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sk_set_owner(sk, THIS_MODULE);
sk->sk_state_change = vcc_def_wakeup;
sk->sk_write_space = vcc_write_space;
vcc = sk->sk_protinfo = kmalloc(sizeof(*vcc), GFP_KERNEL);
if (!vcc) {
sk_free(sk);
return -ENOMEM;
}
memset(vcc, 0, sizeof(*vcc));
vcc->sk = sk;
vcc->dev = NULL;
memset(&vcc->local,0,sizeof(struct sockaddr_atmsvc));
memset(&vcc->remote,0,sizeof(struct sockaddr_atmsvc));
vcc->qos.txtp.max_sdu = 1 << 16; /* for meta VCs */
atomic_set(&vcc->sk->sk_wmem_alloc, 0);
atomic_set(&vcc->sk->sk_rmem_alloc, 0);
vcc->push = NULL;
vcc->pop = NULL;
vcc->push_oam = NULL;
vcc->vpi = vcc->vci = 0; /* no VCI/VPI yet */
vcc->atm_options = vcc->aal_options = 0;
sk->sk_destruct = vcc_sock_destruct;
sock->sk = sk;
return 0;
}
static struct sock *rose_alloc_sock(void)
{
struct sock *sk;
rose_cb *rose;
if ((sk = sk_alloc(PF_ROSE, GFP_ATOMIC, 1)) == NULL)
return NULL;
if ((rose = kmalloc(sizeof(*rose), GFP_ATOMIC)) == NULL) {
sk_free(sk);
return NULL;
}
MOD_INC_USE_COUNT;
memset(rose, 0x00, sizeof(*rose));
sk->protinfo.rose = rose;
rose->sk = sk;
return sk;
}
struct sock *alloc_atm_vcc_sk(int family)
{
struct sock *sk;
struct atm_vcc *vcc;
sk = sk_alloc(family, GFP_KERNEL, 1);
if (!sk) return NULL;
vcc = sk->protinfo.af_atm = kmalloc(sizeof(*vcc),GFP_KERNEL);
if (!vcc) {
sk_free(sk);
return NULL;
}
sock_init_data(NULL,sk);
sk->destruct = atm_free_sock;
memset(vcc,0,sizeof(*vcc));
vcc->sk = sk;
if (nodev_vccs) nodev_vccs->prev = vcc;
vcc->prev = NULL;
vcc->next = nodev_vccs;
nodev_vccs = vcc;
return sk;
}
static int econet_create(struct socket *sock, int protocol)
{
struct sock *sk;
int err;
/* Econet only provides datagram services. */
if (sock->type != SOCK_DGRAM)
return -ESOCKTNOSUPPORT;
sock->state = SS_UNCONNECTED;
MOD_INC_USE_COUNT;
err = -ENOBUFS;
sk = sk_alloc(PF_ECONET, GFP_KERNEL, 1);
if (sk == NULL)
goto out;
sk->reuse = 1;
sock->ops = &econet_ops;
sock_init_data(sock,sk);
sk->protinfo.af_econet = kmalloc(sizeof(struct econet_opt), GFP_KERNEL);
if (sk->protinfo.af_econet == NULL)
goto out_free;
memset(sk->protinfo.af_econet, 0, sizeof(struct econet_opt));
sk->zapped=0;
sk->family = PF_ECONET;
sk->num = protocol;
sklist_insert_socket(&econet_sklist, sk);
return(0);
out_free:
sk_free(sk);
out:
MOD_DEC_USE_COUNT;
return err;
}
static int netlink_create(struct socket *sock, int protocol)
{
struct sock *sk;
struct netlink_opt *nlk;
sock->state = SS_UNCONNECTED;
if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
return -ESOCKTNOSUPPORT;
if (protocol<0 || protocol >= MAX_LINKS)
return -EPROTONOSUPPORT;
sock->ops = &netlink_ops;
sk = sk_alloc(PF_NETLINK, GFP_KERNEL, 1, NULL);
if (!sk)
return -ENOMEM;
sock_init_data(sock,sk);
sk_set_owner(sk, THIS_MODULE);
nlk = sk->sk_protinfo = kmalloc(sizeof(*nlk), GFP_KERNEL);
if (!nlk) {
sk_free(sk);
return -ENOMEM;
}
memset(nlk, 0, sizeof(*nlk));
spin_lock_init(&nlk->cb_lock);
init_waitqueue_head(&nlk->wait);
sk->sk_destruct = netlink_sock_destruct;
sk->sk_protocol = protocol;
return 0;
}
static int bnep_sock_create(struct socket *sock, int protocol)
{
struct sock *sk;
BT_DBG("sock %p", sock);
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
sock->ops = &bnep_sock_ops;
if (!(sk = sk_alloc(PF_BLUETOOTH, GFP_KERNEL, 1)))
return -ENOMEM;
MOD_INC_USE_COUNT;
sock->state = SS_UNCONNECTED;
sock_init_data(sock, sk);
sk->destruct = NULL;
sk->protocol = protocol;
return 0;
}
static struct sock *l2cap_sock_alloc(struct socket *sock, int proto, int prio)
{
struct sock *sk;
if (!(sk = sk_alloc(PF_BLUETOOTH, prio, 1)))
return NULL;
bluez_sock_init(sock, sk);
sk->zapped = 0;
sk->destruct = l2cap_sock_destruct;
sk->sndtimeo = L2CAP_CONN_TIMEOUT;
sk->protocol = proto;
sk->state = BT_OPEN;
l2cap_sock_init_timer(sk);
bluez_sock_link(&l2cap_sk_list, sk);
MOD_INC_USE_COUNT;
return sk;
}
struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, gfp_t prio)
{
struct sock *sk;
sk = sk_alloc(net, PF_BLUETOOTH, prio, &l2cap_proto);
if (!sk)
return NULL;
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
sk->sk_destruct = l2cap_sock_destruct;
sk->sk_sndtimeo = msecs_to_jiffies(L2CAP_CONN_TIMEOUT);
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
setup_timer(&sk->sk_timer, l2cap_sock_timeout, (unsigned long) sk);
bt_sock_link(&l2cap_sk_list, sk);
return sk;
}
struct sock *sk_clone(struct sock *sk, const gfp_t priority)
{
struct sock *newsk = sk_alloc(sk->sk_family, priority, sk->sk_prot, 0);
if (newsk != NULL) {
struct sk_filter *filter;
memcpy(newsk, sk, sk->sk_prot->obj_size);
/* SANITY */
sk_node_init(&newsk->sk_node);
sock_lock_init(newsk);
bh_lock_sock(newsk);
atomic_set(&newsk->sk_rmem_alloc, 0);
atomic_set(&newsk->sk_wmem_alloc, 0);
atomic_set(&newsk->sk_omem_alloc, 0);
skb_queue_head_init(&newsk->sk_receive_queue);
skb_queue_head_init(&newsk->sk_write_queue);
rwlock_init(&newsk->sk_dst_lock);
rwlock_init(&newsk->sk_callback_lock);
newsk->sk_dst_cache = NULL;
newsk->sk_wmem_queued = 0;
newsk->sk_forward_alloc = 0;
newsk->sk_send_head = NULL;
newsk->sk_backlog.head = newsk->sk_backlog.tail = NULL;
newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
sock_reset_flag(newsk, SOCK_DONE);
skb_queue_head_init(&newsk->sk_error_queue);
filter = newsk->sk_filter;
if (filter != NULL)
sk_filter_charge(newsk, filter);
if (sk->sk_create_child)
sk->sk_create_child(sk, newsk);
if (unlikely(xfrm_sk_clone_policy(newsk))) {
/* It is still raw copy of parent, so invalidate
* destructor and make plain sk_free() */
newsk->sk_destruct = NULL;
sk_free(newsk);
newsk = NULL;
goto out;
}
newsk->sk_err = 0;
newsk->sk_priority = 0;
atomic_set(&newsk->sk_refcnt, 2);
/*
* Increment the counter in the same struct proto as the master
* sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
* is the same as sk->sk_prot->socks, as this field was copied
* with memcpy).
*
* This _changes_ the previous behaviour, where
* tcp_create_openreq_child always was incrementing the
* equivalent to tcp_prot->socks (inet_sock_nr), so this have
* to be taken into account in all callers. -acme
*/
sk_refcnt_debug_inc(newsk);
newsk->sk_socket = NULL;
newsk->sk_sleep = NULL;
if (newsk->sk_prot->sockets_allocated)
atomic_inc(newsk->sk_prot->sockets_allocated);
}
out:
return newsk;
}
int clip6_set_vcc_netif(struct socket *sock,int number)
{
struct clip6_vcc *clip6_vcc;
struct sock *sk = NULL;
struct net_device *dev;
struct atm_vcc *vcc = ATM_SD(sock);
DPRINTK("clip6_set_vcc_netif 0x%08x\n", (unsigned int)vcc);
if (vcc->push != clip6_push) {
printk(KERN_WARNING "clip6_set_vcc_netif: non-CLIP VCC\n");
return -EBADF;
}
/* allocate a scapegoat sk and vcc */
if (sock->type == SOCK_STREAM)
return -EINVAL;
sk = sk_alloc(sock->sk->family, GFP_KERNEL, 1);
if (!sk)
return -ENOMEM;
sock_init_data(NULL, sk);
vcc = sk->protinfo.af_atm = kmalloc(sizeof(*vcc), GFP_KERNEL);
if (!vcc) {
sk_free(sk);
return -ENOMEM;
}
memset(vcc, 0, sizeof(*vcc));
vcc->sk = sk;
clip6_vcc = CLIP6_VCC(vcc);
for (dev = clip6_devs; dev; dev = PRIV(dev)->next) {
if (PRIV(dev)->number == number) {
PRIV(dev)->vccs = clip6_vcc;
clip6_vcc->dev = dev;
if (vcc->dev) {
/* copy MAC address */
/* TODO: This will cause address duplication
in case loop back.
To avoid this, dev_addr should include
the number of interface, or such. */
dev->addr_len = ESI_LEN;
memcpy(dev->dev_addr, vcc->dev->esi, dev->addr_len);
}
/* detach vcc from a soket */
sk->rcvbuf = vcc->sk->rcvbuf;
sk->sndbuf = vcc->sk->sndbuf;
PRIV(dev)->vcc = vcc;
PRIV(dev)->vcc->sk = sk;
*(&ATM_SD(sock)) = sk->protinfo.af_atm;
sk->protinfo.af_atm->sk = sock->sk;
/* TODO: ininialize lists, vcc->prev,next, nodev_vccs */
return 0;
}
}
return -ENODEV;
}
struct sock *__vsock_create(struct net *net,
struct socket *sock,
struct sock *parent,
gfp_t priority,
unsigned short type,
int kern)
{
struct sock *sk;
struct vsock_sock *psk;
struct vsock_sock *vsk;
sk = sk_alloc(net, AF_VSOCK, priority, &vsock_proto, kern);
if (!sk)
return NULL;
sock_init_data(sock, sk);
/* sk->sk_type is normally set in sock_init_data, but only if sock is
* non-NULL. We make sure that our sockets always have a type by
* setting it here if needed.
*/
if (!sock)
sk->sk_type = type;
vsk = vsock_sk(sk);
vsock_addr_init(&vsk->local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
vsock_addr_init(&vsk->remote_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
sk->sk_destruct = vsock_sk_destruct;
sk->sk_backlog_rcv = vsock_queue_rcv_skb;
sock_reset_flag(sk, SOCK_DONE);
INIT_LIST_HEAD(&vsk->bound_table);
INIT_LIST_HEAD(&vsk->connected_table);
vsk->listener = NULL;
INIT_LIST_HEAD(&vsk->pending_links);
INIT_LIST_HEAD(&vsk->accept_queue);
vsk->rejected = false;
vsk->sent_request = false;
vsk->ignore_connecting_rst = false;
vsk->peer_shutdown = 0;
psk = parent ? vsock_sk(parent) : NULL;
if (parent) {
vsk->trusted = psk->trusted;
vsk->owner = get_cred(psk->owner);
vsk->connect_timeout = psk->connect_timeout;
} else {
vsk->trusted = capable(CAP_NET_ADMIN);
vsk->owner = get_current_cred();
vsk->connect_timeout = VSOCK_DEFAULT_CONNECT_TIMEOUT;
}
if (transport->init(vsk, psk) < 0) {
sk_free(sk);
return NULL;
}
if (sock)
vsock_insert_unbound(vsk);
return sk;
}
static int pep_connreq_rcv(struct sock *sk, struct sk_buff *skb)
{
struct sock *newsk;
struct pep_sock *newpn, *pn = pep_sk(sk);
struct pnpipehdr *hdr;
struct sockaddr_pn dst;
u16 peer_type;
u8 pipe_handle, enabled, n_sb;
u8 aligned = 0;
if (!pskb_pull(skb, sizeof(*hdr) + 4))
return -EINVAL;
hdr = pnp_hdr(skb);
pipe_handle = hdr->pipe_handle;
switch (hdr->state_after_connect) {
case PN_PIPE_DISABLE:
enabled = 0;
break;
case PN_PIPE_ENABLE:
enabled = 1;
break;
default:
pep_reject_conn(sk, skb, PN_PIPE_ERR_INVALID_PARAM);
return -EINVAL;
}
peer_type = hdr->other_pep_type << 8;
if (unlikely(sk->sk_state != TCP_LISTEN) || sk_acceptq_is_full(sk)) {
pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE);
return -ENOBUFS;
}
/* Parse sub-blocks (options) */
n_sb = hdr->data[4];
while (n_sb > 0) {
u8 type, buf[1], len = sizeof(buf);
const u8 *data = pep_get_sb(skb, &type, &len, buf);
if (data == NULL)
return -EINVAL;
switch (type) {
case PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE:
if (len < 1)
return -EINVAL;
peer_type = (peer_type & 0xff00) | data[0];
break;
case PN_PIPE_SB_ALIGNED_DATA:
aligned = data[0] != 0;
break;
}
n_sb--;
}
skb = skb_clone(skb, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
/* Create a new to-be-accepted sock */
newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_ATOMIC, sk->sk_prot);
if (!newsk) {
kfree_skb(skb);
return -ENOMEM;
}
sock_init_data(NULL, newsk);
newsk->sk_state = TCP_SYN_RECV;
newsk->sk_backlog_rcv = pipe_do_rcv;
newsk->sk_protocol = sk->sk_protocol;
newsk->sk_destruct = pipe_destruct;
newpn = pep_sk(newsk);
pn_skb_get_dst_sockaddr(skb, &dst);
newpn->pn_sk.sobject = pn_sockaddr_get_object(&dst);
newpn->pn_sk.resource = pn->pn_sk.resource;
skb_queue_head_init(&newpn->ctrlreq_queue);
newpn->pipe_handle = pipe_handle;
atomic_set(&newpn->tx_credits, 0);
newpn->peer_type = peer_type;
newpn->rx_credits = 0;
newpn->rx_fc = newpn->tx_fc = PN_LEGACY_FLOW_CONTROL;
newpn->init_enable = enabled;
newpn->aligned = aligned;
BUG_ON(!skb_queue_empty(&newsk->sk_receive_queue));
skb_queue_head(&newsk->sk_receive_queue, skb);
if (!sock_flag(sk, SOCK_DEAD))
sk->sk_data_ready(sk, 0);
sk_acceptq_added(sk);
sk_add_node(newsk, &pn->ackq);
return 0;
}
static int
kni_vhost_backend_init(struct kni_dev *kni)
{
struct kni_vhost_queue *q;
struct net *net = current->nsproxy->net_ns;
int err, i, sockfd;
struct rte_kni_fifo *fifo;
struct sk_buff *elem;
if (kni->vhost_queue != NULL)
return -1;
if (!(q = (struct kni_vhost_queue *)sk_alloc(
net, AF_UNSPEC, GFP_KERNEL, &kni_raw_proto)))
return -ENOMEM;
err = sock_create_lite(AF_UNSPEC, SOCK_RAW, IPPROTO_RAW, &q->sock);
if (err)
goto free_sk;
sockfd = kni_sock_map_fd(q->sock);
if (sockfd < 0) {
err = sockfd;
goto free_sock;
}
/* cache init */
q->cache = (struct sk_buff*)
kzalloc(RTE_KNI_VHOST_MAX_CACHE_SIZE * sizeof(struct sk_buff),
GFP_KERNEL);
if (!q->cache)
goto free_fd;
fifo = (struct rte_kni_fifo*)
kzalloc(RTE_KNI_VHOST_MAX_CACHE_SIZE * sizeof(void *)
+ sizeof(struct rte_kni_fifo), GFP_KERNEL);
if (!fifo)
goto free_cache;
kni_fifo_init(fifo, RTE_KNI_VHOST_MAX_CACHE_SIZE);
for (i = 0; i < RTE_KNI_VHOST_MAX_CACHE_SIZE; i++) {
elem = &q->cache[i];
kni_fifo_put(fifo, (void**)&elem, 1);
}
q->fifo = fifo;
/* store sockfd in vhost_queue */
q->sockfd = sockfd;
/* init socket */
q->sock->type = SOCK_RAW;
q->sock->state = SS_CONNECTED;
q->sock->ops = &kni_socket_ops;
sock_init_data(q->sock, &q->sk);
/* init sock data */
q->sk.sk_write_space = kni_sk_write_space;
q->sk.sk_destruct = kni_sk_destruct;
q->flags = IFF_NO_PI | IFF_TAP;
q->vnet_hdr_sz = sizeof(struct virtio_net_hdr);
#ifdef RTE_KNI_VHOST_VNET_HDR_EN
q->flags |= IFF_VNET_HDR;
#endif
/* bind kni_dev with vhost_queue */
q->kni = kni;
kni->vhost_queue = q;
wmb();
kni->vq_status = BE_START;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)
KNI_DBG("backend init sockfd=%d, sock->wq=0x%16llx,"
"sk->sk_wq=0x%16llx",
q->sockfd, (uint64_t)q->sock->wq,
(uint64_t)q->sk.sk_wq);
#else
KNI_DBG("backend init sockfd=%d, sock->wait at 0x%16llx,"
"sk->sk_sleep=0x%16llx",
q->sockfd, (uint64_t)&q->sock->wait,
(uint64_t)q->sk.sk_sleep);
#endif
return 0;
free_cache:
kfree(q->cache);
q->cache = NULL;
free_fd:
put_unused_fd(sockfd);
free_sock:
q->kni = NULL;
kni->vhost_queue = NULL;
kni->vq_status |= BE_FINISH;
sock_release(q->sock);
q->sock->ops = NULL;
q->sock = NULL;
free_sk:
sk_free((struct sock*)q);
return err;
}
static int packet_create(struct socket *sock, int protocol)
{
struct sock *sk;
struct packet_sock *po;
int err;
if (!capable(CAP_NET_RAW))
return -EPERM;
if (sock->type != SOCK_DGRAM && sock->type != SOCK_RAW
#ifdef CONFIG_SOCK_PACKET
&& sock->type != SOCK_PACKET
#endif
)
return -ESOCKTNOSUPPORT;
sock->state = SS_UNCONNECTED;
err = -ENOBUFS;
sk = sk_alloc(PF_PACKET, GFP_KERNEL, &packet_proto, 1);
if (sk == NULL)
goto out;
sock->ops = &packet_ops;
#ifdef CONFIG_SOCK_PACKET
if (sock->type == SOCK_PACKET)
sock->ops = &packet_ops_spkt;
#endif
sock_init_data(sock, sk);
po = pkt_sk(sk);
sk->sk_family = PF_PACKET;
po->num = protocol;
sk->sk_destruct = packet_sock_destruct;
atomic_inc(&packet_socks_nr);
/*
* Attach a protocol block
*/
spin_lock_init(&po->bind_lock);
po->prot_hook.func = packet_rcv;
#ifdef CONFIG_SOCK_PACKET
if (sock->type == SOCK_PACKET)
po->prot_hook.func = packet_rcv_spkt;
#endif
po->prot_hook.af_packet_priv = sk;
if (protocol) {
po->prot_hook.type = protocol;
dev_add_pack(&po->prot_hook);
sock_hold(sk);
po->running = 1;
}
write_lock_bh(&packet_sklist_lock);
sk_add_node(sk, &packet_sklist);
write_unlock_bh(&packet_sklist_lock);
return(0);
out:
return err;
}
static int inet6_create(struct socket *sock, int protocol)
{
struct sock *sk;
struct proto *prot;
sk = sk_alloc(PF_INET6, GFP_KERNEL, 1);
if (sk == NULL)
goto do_oom;
if(sock->type == SOCK_STREAM || sock->type == SOCK_SEQPACKET) {
if (protocol && protocol != IPPROTO_TCP)
goto free_and_noproto;
protocol = IPPROTO_TCP;
prot = &tcpv6_prot;
sock->ops = &inet6_stream_ops;
} else if(sock->type == SOCK_DGRAM) {
if (protocol && protocol != IPPROTO_UDP)
goto free_and_noproto;
protocol = IPPROTO_UDP;
sk->no_check = UDP_CSUM_DEFAULT;
prot=&udpv6_prot;
sock->ops = &inet6_dgram_ops;
} else if(sock->type == SOCK_RAW) {
if (!capable(CAP_NET_RAW))
goto free_and_badperm;
if (!protocol)
goto free_and_noproto;
prot = &rawv6_prot;
sock->ops = &inet6_dgram_ops;
sk->reuse = 1;
sk->num = protocol;
} else {
goto free_and_badtype;
}
sock_init_data(sock, sk);
sk->destruct = inet6_sock_destruct;
sk->zapped = 0;
sk->family = PF_INET6;
sk->protocol = protocol;
sk->prot = prot;
sk->backlog_rcv = prot->backlog_rcv;
sk->net_pinfo.af_inet6.hop_limit = -1;
sk->net_pinfo.af_inet6.mcast_hops = -1;
sk->net_pinfo.af_inet6.mc_loop = 1;
sk->net_pinfo.af_inet6.pmtudisc = IPV6_PMTUDISC_WANT;
/* Init the ipv4 part of the socket since we can have sockets
* using v6 API for ipv4.
*/
sk->protinfo.af_inet.ttl = 64;
sk->protinfo.af_inet.mc_loop = 1;
sk->protinfo.af_inet.mc_ttl = 1;
sk->protinfo.af_inet.mc_index = 0;
sk->protinfo.af_inet.mc_list = NULL;
if (ipv4_config.no_pmtu_disc)
sk->protinfo.af_inet.pmtudisc = IP_PMTUDISC_DONT;
else
sk->protinfo.af_inet.pmtudisc = IP_PMTUDISC_WANT;
#ifdef INET_REFCNT_DEBUG
atomic_inc(&inet6_sock_nr);
atomic_inc(&inet_sock_nr);
#endif
MOD_INC_USE_COUNT;
if (sk->type==SOCK_RAW && protocol==IPPROTO_RAW)
sk->protinfo.af_inet.hdrincl=1;
if (sk->num) {
/* It assumes that any protocol which allows
* the user to assign a number at socket
* creation time automatically shares.
*/
sk->sport = ntohs(sk->num);
sk->prot->hash(sk);
}
if (sk->prot->init) {
int err = sk->prot->init(sk);
if (err != 0) {
MOD_DEC_USE_COUNT;
inet_sock_release(sk);
return(err);
}
}
return(0);
free_and_badtype:
sk_free(sk);
return -ESOCKTNOSUPPORT;
free_and_badperm:
sk_free(sk);
return -EPERM;
free_and_noproto:
sk_free(sk);
return -EPROTONOSUPPORT;
do_oom:
return -ENOBUFS;
}
static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp)
{
struct pep_sock *pn = pep_sk(sk), *newpn;
struct sock *newsk = NULL;
struct sk_buff *skb;
struct pnpipehdr *hdr;
struct sockaddr_pn dst, src;
int err;
u16 peer_type;
u8 pipe_handle, enabled, n_sb;
u8 aligned = 0;
skb = skb_recv_datagram(sk, 0, flags & O_NONBLOCK, errp);
if (!skb)
return NULL;
lock_sock(sk);
if (sk->sk_state != TCP_LISTEN) {
err = -EINVAL;
goto drop;
}
sk_acceptq_removed(sk);
err = -EPROTO;
if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
goto drop;
hdr = pnp_hdr(skb);
pipe_handle = hdr->pipe_handle;
switch (hdr->state_after_connect) {
case PN_PIPE_DISABLE:
enabled = 0;
break;
case PN_PIPE_ENABLE:
enabled = 1;
break;
default:
pep_reject_conn(sk, skb, PN_PIPE_ERR_INVALID_PARAM,
GFP_KERNEL);
goto drop;
}
peer_type = hdr->other_pep_type << 8;
/* Parse sub-blocks (options) */
n_sb = hdr->data[4];
while (n_sb > 0) {
u8 type, buf[1], len = sizeof(buf);
const u8 *data = pep_get_sb(skb, &type, &len, buf);
if (data == NULL)
goto drop;
switch (type) {
case PN_PIPE_SB_CONNECT_REQ_PEP_SUB_TYPE:
if (len < 1)
goto drop;
peer_type = (peer_type & 0xff00) | data[0];
break;
case PN_PIPE_SB_ALIGNED_DATA:
aligned = data[0] != 0;
break;
}
n_sb--;
}
/* Check for duplicate pipe handle */
newsk = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
if (unlikely(newsk)) {
__sock_put(newsk);
newsk = NULL;
pep_reject_conn(sk, skb, PN_PIPE_ERR_PEP_IN_USE, GFP_KERNEL);
goto drop;
}
/* Create a new to-be-accepted sock */
newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_KERNEL, sk->sk_prot);
if (!newsk) {
pep_reject_conn(sk, skb, PN_PIPE_ERR_OVERLOAD, GFP_KERNEL);
err = -ENOBUFS;
goto drop;
}
sock_init_data(NULL, newsk);
newsk->sk_state = TCP_SYN_RECV;
newsk->sk_backlog_rcv = pipe_do_rcv;
newsk->sk_protocol = sk->sk_protocol;
newsk->sk_destruct = pipe_destruct;
newpn = pep_sk(newsk);
pn_skb_get_dst_sockaddr(skb, &dst);
pn_skb_get_src_sockaddr(skb, &src);
newpn->pn_sk.sobject = pn_sockaddr_get_object(&dst);
newpn->pn_sk.dobject = pn_sockaddr_get_object(&src);
newpn->pn_sk.resource = pn_sockaddr_get_resource(&dst);
sock_hold(sk);
newpn->listener = sk;
skb_queue_head_init(&newpn->ctrlreq_queue);
newpn->pipe_handle = pipe_handle;
atomic_set(&newpn->tx_credits, 0);
newpn->ifindex = 0;
newpn->peer_type = peer_type;
newpn->rx_credits = 0;
newpn->rx_fc = newpn->tx_fc = PN_LEGACY_FLOW_CONTROL;
newpn->init_enable = enabled;
newpn->aligned = aligned;
err = pep_accept_conn(newsk, skb);
if (err) {
sock_put(newsk);
newsk = NULL;
goto drop;
}
sk_add_node(newsk, &pn->hlist);
drop:
release_sock(sk);
kfree_skb(skb);
*errp = err;
return newsk;
}
static int tipc_create(struct net *net, struct socket *sock, int protocol,
int kern)
{
const struct proto_ops *ops;
socket_state state;
struct sock *sk;
struct tipc_port *tp_ptr;
/* Validate arguments */
if (unlikely(protocol != 0))
return -EPROTONOSUPPORT;
switch (sock->type) {
case SOCK_STREAM:
ops = &stream_ops;
state = SS_UNCONNECTED;
break;
case SOCK_SEQPACKET:
ops = &packet_ops;
state = SS_UNCONNECTED;
break;
case SOCK_DGRAM:
case SOCK_RDM:
ops = &msg_ops;
state = SS_READY;
break;
default:
return -EPROTOTYPE;
}
/* Allocate socket's protocol area */
sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto);
if (sk == NULL)
return -ENOMEM;
/* Allocate TIPC port for socket to use */
tp_ptr = tipc_createport_raw(sk, &dispatch, &wakeupdispatch,
TIPC_LOW_IMPORTANCE);
if (unlikely(!tp_ptr)) {
sk_free(sk);
return -ENOMEM;
}
/* Finish initializing socket data structures */
sock->ops = ops;
sock->state = state;
sock_init_data(sock, sk);
sk->sk_backlog_rcv = backlog_rcv;
tipc_sk(sk)->p = tp_ptr;
tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT;
spin_unlock_bh(tp_ptr->lock);
if (sock->state == SS_READY) {
tipc_set_portunreturnable(tp_ptr->ref, 1);
if (sock->type == SOCK_DGRAM)
tipc_set_portunreliable(tp_ptr->ref, 1);
}
return 0;
}
