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LWIP: move chardev message parsing into libnetsock

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Change-Id: Ie23fd003c9fa35811548f388c8e9b55e8d9de8d7
This commit is contained in:
David van Moolenbroek 2013-09-11 00:50:36 +02:00 committed by Lionel Sambuc
parent 94f7151729
commit 15e83fec25
10 changed files with 523 additions and 565 deletions
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60
include/minix/netsock.h
View file

@ -5,6 +5,7 @@
#include <minix/ipc.h>
#include <minix/endpoint.h>
#include <minix/chardriver.h>
/*
* User can set this variable to make the debugging output differ between
@ -18,19 +19,21 @@ extern char * netsock_user_name;
#define SOCK_TYPES 3
struct socket;
struct sock_req;
typedef void (* sock_op_t)(struct socket *, message *);
typedef void (* sock_op_io_t)(struct socket *, message *, int blk);
typedef int (* sock_op_open_t)(struct socket *, message *);
typedef int (* sock_op_opcl_t)(struct socket *);
typedef int (* sock_op_io_t)(struct socket *, struct sock_req *, int blk);
typedef int (* sock_op_select_t)(struct socket *, unsigned int);
typedef int (* sock_op_select_reply_t)(struct socket *);
struct sock_ops {
sock_op_open_t open;
sock_op_t close;
sock_op_io_t read;
sock_op_io_t write;
sock_op_io_t ioctl;
sock_op_t select;
sock_op_t select_reply;
sock_op_opcl_t open;
sock_op_opcl_t close;
sock_op_io_t read;
sock_op_io_t write;
sock_op_io_t ioctl;
sock_op_select_t select;
sock_op_select_reply_t select_reply;
};
struct recv_q {
@ -63,6 +66,23 @@ struct recv_q {
SOCK_FLG_SEL_ERROR); \
} while (0)
struct sock_req {
enum {
SOCK_REQ_READ,
SOCK_REQ_WRITE,
SOCK_REQ_IOCTL
} type;
devminor_t minor;
endpoint_t endpt;
cp_grant_id_t grant;
union {
size_t size; /* for SOCK_REQ_READ, SOCK_REQ_WRITE */
unsigned long req; /* for SOCK_REQ_IOCTL */
};
int flags;
cdev_id_t id;
};
struct socket {
int type;
u32_t flags;
@ -71,9 +91,7 @@ struct socket {
struct sock_ops * ops;
void * buf;
size_t buf_size;
message mess; /* store the message which initiated the
last operation on this socket in case
we have to suspend the operation */
struct sock_req req;
void * shm;
size_t shm_size;
endpoint_t select_ep;
@ -87,7 +105,7 @@ struct socket {
* Each component needs to provide a method how to initially open a socket.
* The rest is handled byt the socket library.
*/
void socket_open(message * m);
int socket_open(devminor_t minor);
#define get_sock_num(x) ((long int) ((x) - socket))
#define is_valid_sock_num(x) (x < MAX_SOCKETS)
@ -103,16 +121,10 @@ extern struct socket socket[MAX_SOCKETS];
void socket_request(message * m);
void mq_process(void);
struct socket * get_unused_sock(void);
struct socket * get_nic_sock(unsigned dev);
void send_reply(message * m, int status);
void send_reply_open(message * m, int status);
void send_reply_close(message * m, int status);
void sock_reply(struct socket * sock, int status);
void sock_reply_close(struct socket * sock, int status);
void sock_reply_select(struct socket * sock, unsigned selops);
void send_req_reply(struct sock_req * req, int status);
typedef void (* recv_data_free_fn)(void *);
@ -139,10 +151,8 @@ static inline void * debug_malloc(size_t s)
free(x); \
} while(0)
void generic_op_select(struct socket * sock, message * m);
void generic_op_select_reply(struct socket * sock, message * m);
int mq_enqueue(message * m);
int generic_op_select(struct socket * sock, unsigned int sel);
int generic_op_select_reply(struct socket * sock);
/* a function thr user has to provide to reply to the posix server */
void posix_reply(endpoint_t ep, message * m);

192
lib/libnetsock/socket.c
View file

@ -46,7 +46,7 @@ struct socket socket[MAX_SOCKETS];
#define recv_q_free debug_free
struct mq {
message m;
struct sock_req req;
struct mq * prev;
struct mq * next;
};
@ -56,18 +56,18 @@ struct mq {
static struct mq * mq_head, *mq_tail;
int mq_enqueue(message * m)
int mq_enqueue(struct sock_req * req)
{
struct mq * mq;
debug_sock_print("sock %d op %d", m->DEVICE, m->m_type);
debug_sock_print("sock %d op %d", req->minor, req->type);
mq = mq_alloc();
if (mq == NULL)
return -1;
mq->next = NULL;
mq->m = *m;
mq->req = *req;
if (mq_head) {
mq->prev = mq_tail;
@ -97,7 +97,7 @@ __unused static struct mq * mq_dequeue_head(void)
} else
mq_head = mq_tail = NULL;
debug_sock_print("socket %d\n", ret->m.DEVICE);
debug_sock_print("socket %d\n", ret->req.minor);
return ret;
}
@ -120,15 +120,14 @@ static void mq_dequeue(struct mq * mq)
}
}
static int mq_cancel(message * m)
static int mq_cancel(devminor_t minor, endpoint_t endpt, cdev_id_t id)
{
struct mq * mq;
for (mq = mq_tail; mq; mq = mq->prev) {
if (m->DEVICE == mq->m.DEVICE &&
m->USER_ENDPT == mq->m.USER_ENDPT &&
m->IO_GRANT == mq->m.IO_GRANT) {
debug_sock_print("socket %d\n", mq->m.DEVICE);
if (minor == mq->req.minor && endpt == mq->req.endpt &&
id == mq->req.id) {
debug_sock_print("socket %d\n", minor);
break;
}
}
@ -138,6 +137,7 @@ static int mq_cancel(message * m)
mq_free(mq);
}
/* FIXME: shouldn't this return (!!mq) ? */
return 1;
}
@ -203,7 +203,7 @@ static void set_reply_msg(message * m, int status)
m->REP_IO_GRANT= ref;
}
void send_reply_type(message * m, int type, int status)
static void send_reply_type(message * m, int type, int status)
{
int result;
@ -215,25 +215,44 @@ void send_reply_type(message * m, int type, int status)
netsock_panic("unable to send (err %d)", result);
}
void send_reply(message * m, int status)
void send_req_reply(struct sock_req * req, int status)
{
message m;
int result;
if (status == EDONTREPLY)
return;
m.m_type = DEV_REVIVE;
m.REP_STATUS = status;
m.REP_ENDPT = req->endpt; /* FIXME: HACK */
m.REP_IO_GRANT = req->id;
result = send(req->endpt, &m);
if (result != OK)
netsock_panic("unable to send (err %d)", result);
}
static void send_reply(message * m, int status)
{
debug_sock_print("status %d", status);
send_reply_type(m, DEV_REVIVE, status);
}
void send_reply_open(message * m, int status)
static void send_reply_open(message * m, int status)
{
debug_sock_print("status %d", status);
send_reply_type(m, DEV_OPEN_REPL, status);
}
void send_reply_close(message * m, int status)
static void send_reply_close(message * m, int status)
{
debug_sock_print("status %d", status);
send_reply_type(m, DEV_CLOSE_REPL, status);
}
void sock_reply_select(struct socket * sock, unsigned selops)
static void sock_reply_select(struct socket * sock, endpoint_t endpt,
unsigned selops)
{
int result;
message msg;
@ -244,7 +263,7 @@ void sock_reply_select(struct socket * sock, unsigned selops)
msg.DEV_MINOR = get_sock_num(sock);
msg.DEV_SEL_OPS = selops;
result = send(sock->select_ep, &msg);
result = send(endpt, &msg);
if (result != OK)
netsock_panic("unable to send (err %d)", result);
}
@ -257,8 +276,7 @@ void sock_select_notify(struct socket * sock)
debug_sock_select_print("socket num %ld", get_sock_num(sock));
assert(sock->select_ep != NONE);
msg.DEV_SEL_OPS = 0;
sock->ops->select_reply(sock, &msg);
msg.DEV_SEL_OPS = sock->ops->select_reply(sock);
if (msg.DEV_SEL_OPS == 0) {
debug_sock_select_print("called from %p sflags 0x%x TXsz %d RXsz %d\n",
__builtin_return_address(0), sock->flags,
@ -279,25 +297,6 @@ void sock_select_notify(struct socket * sock)
sock->select_ep = NONE;
}
static void sock_reply_type(struct socket * sock, int type, int status)
{
sock->mess.m_type = type;
send_reply_type(&sock->mess, type, status);
}
void sock_reply_close(struct socket * sock, int status)
{
debug_sock_print("sock %ld status %d", get_sock_num(sock), status);
sock_reply_type(sock, DEV_CLOSE_REPL, status);
}
void sock_reply(struct socket * sock, int status)
{
debug_sock_print("sock %ld status %d", get_sock_num(sock), status);
sock_reply_type(sock, DEV_REVIVE, status);
}
struct socket * get_unused_sock(void)
{
int i;
@ -313,51 +312,56 @@ struct socket * get_unused_sock(void)
return NULL;
}
static void socket_request_socket(struct socket * sock, message * m)
static int socket_request_socket(struct socket * sock, struct sock_req * req)
{
int blocking = m->FLAGS & FLG_OP_NONBLOCK ? 0 : 1;
int r, blocking = req->flags & FLG_OP_NONBLOCK ? 0 : 1;
switch (m->m_type) {
case DEV_READ_S:
switch (req->type) {
case SOCK_REQ_READ:
if (sock->ops && sock->ops->read)
sock->ops->read(sock, m, blocking);
r = sock->ops->read(sock, req, blocking);
else
send_reply(m, EINVAL);
return;
case DEV_WRITE_S:
r = EINVAL;
break;
case SOCK_REQ_WRITE:
if (sock->ops && sock->ops->write)
sock->ops->write(sock, m, blocking);
r = sock->ops->write(sock, req, blocking);
else
send_reply(m, EINVAL);
return;
case DEV_IOCTL_S:
r = EINVAL;
break;
case SOCK_REQ_IOCTL:
if (sock->ops && sock->ops->ioctl)
sock->ops->ioctl(sock, m, blocking);
r = sock->ops->ioctl(sock, req, blocking);
else
send_reply(m, EINVAL);
return;
r = EINVAL;
break;
default:
netsock_panic("cannot happen!");
}
return r;
}
void socket_request(message * m)
{
struct socket * sock;
struct sock_req req;
int r;
debug_sock_print("request %d", m->m_type);
switch (m->m_type) {
case DEV_OPEN:
socket_open(m);
r = socket_open(m->DEVICE);
send_reply_open(m, r);
return;
case DEV_CLOSE:
sock = get_sock(m->DEVICE);
if (sock->ops && sock->ops->close) {
sock->flags &= ~SOCK_FLG_OP_PENDING;
sock->mess = *m;
sock->ops->close(sock, m);
r = sock->ops->close(sock);
} else
send_reply_close(m, EINVAL);
r = EINVAL;
send_reply_close(m, r);
return;
case DEV_READ_S:
case DEV_WRITE_S:
@ -367,6 +371,24 @@ void socket_request(message * m)
send_reply(m, EINVAL);
return;
}
/* Build a request record for this request. */
req.minor = m->DEVICE;
req.endpt = m->m_source;
req.grant = (cp_grant_id_t) m->IO_GRANT;
req.id = (cdev_id_t) m->IO_GRANT;
req.flags = m->FLAGS;
switch (m->m_type) {
case DEV_READ_S:
case DEV_WRITE_S:
req.type = (m->m_type == DEV_READ_S) ?
SOCK_REQ_READ : SOCK_REQ_WRITE;
req.size = m->COUNT;
break;
case DEV_IOCTL_S:
req.type = SOCK_REQ_IOCTL;
req.req = m->REQUEST;
break;
}
/*
* If an operation is pending (blocking operation) or writing is
* still going and we want to read, suspend the new operation
@ -383,33 +405,32 @@ void socket_request(message * m)
o = "non R/W op";
debug_sock_print("socket %ld is busy by %s flgs 0x%x\n",
get_sock_num(sock), o, sock->flags);
if (mq_enqueue(m) != 0) {
if (mq_enqueue(&req) != 0) {
debug_sock_print("Enqueuing suspended "
"call failed");
send_reply(m, ENOMEM);
}
return;
}
sock->mess = *m;
socket_request_socket(sock, m);
sock->req = req;
r = socket_request_socket(sock, &req);
send_req_reply(&req, r);
return;
case CANCEL:
sock = get_sock(m->DEVICE);
printf("socket num %ld\n", get_sock_num(sock));
debug_sock_print("socket num %ld", get_sock_num(sock));
/* Cancel the last operation in the queue */
if (mq_cancel(m)) {
if (mq_cancel(m->DEVICE, m->m_source,
(cdev_id_t) m->IO_GRANT)) {
send_reply(m, EINTR);
return;
/* ... or a blocked read */
} else if (sock->flags & SOCK_FLG_OP_PENDING &&
sock->flags & SOCK_FLG_OP_READING) {
sock->flags &= ~SOCK_FLG_OP_PENDING;
send_reply(m, EINTR);
return;
} else
netsock_panic("no operation to cancel");
}
/* The request may not be found. This is OK. Do not reply. */
return;
case DEV_SELECT:
/*
@ -421,11 +442,13 @@ void socket_request(message * m)
if (sock->ops && sock->ops->select) {
sock->select_ep = m->m_source;
sock->ops->select(sock, m);
r = sock->ops->select(sock, m->DEV_SEL_OPS);
if (!sock_select_set(sock))
sock->select_ep = NONE;
} else
send_reply(m, EINVAL);
r = EINVAL;
sock_reply_select(sock, m->m_source, r);
return;
default:
netsock_error("unknown message from VFS, type %d\n",
@ -438,20 +461,22 @@ void mq_process(void)
{
struct mq * mq;
struct socket * sock;
int r;
mq = mq_head;
while(mq) {
struct mq * next = mq->next;
sock = get_sock(mq->m.DEVICE);
sock = get_sock(mq->req.minor);
if (!(sock->flags & SOCK_FLG_OP_PENDING) &&
!(mq->m.m_type == DEV_READ_S &&
!(mq->req.type == SOCK_REQ_READ &&
sock->flags & SOCK_FLG_OP_WRITING)) {
debug_sock_print("resuming op on sock %ld\n",
get_sock_num(sock));
sock->mess = mq->m;
socket_request_socket(sock, &sock->mess);
sock->req = mq->req;
r = socket_request_socket(sock, &sock->req);
send_req_reply(&sock->req, r);
mq_dequeue(mq);
mq_free(mq);
return;
@ -461,13 +486,11 @@ void mq_process(void)
}
}
void generic_op_select(struct socket * sock, message * m)
int generic_op_select(struct socket * sock, unsigned int sel)
{
int retsel = 0, sel;
int retsel = 0;
debug_sock_print("socket num %ld 0x%x", get_sock_num(sock), m->USER_ENDPT);
sel = m->USER_ENDPT;
debug_sock_print("socket num %ld 0x%x", get_sock_num(sock), sel);
/* in this case any operation would block, no error */
if (sock->flags & SOCK_FLG_OP_PENDING) {
@ -478,8 +501,7 @@ void generic_op_select(struct socket * sock, message * m)
sock->flags |= SOCK_FLG_SEL_WRITE;
/* FIXME we do not monitor error */
}
sock_reply_select(sock, 0);
return;
return 0;
}
if (sel & SEL_RD) {
@ -493,11 +515,13 @@ void generic_op_select(struct socket * sock, message * m)
retsel |= SEL_WR;
/* FIXME SEL_ERR is ignored, we do not generate exceptions */
sock_reply_select(sock, retsel);
return retsel;
}
void generic_op_select_reply(struct socket * sock, __unused message * m)
int generic_op_select_reply(struct socket * sock)
{
unsigned int sel = 0;
assert(sock->select_ep != NONE);
debug_sock_print("socket num %ld", get_sock_num(sock));
@ -506,13 +530,15 @@ void generic_op_select_reply(struct socket * sock, __unused message * m)
if (sock->flags & SOCK_FLG_OP_PENDING) {
debug_sock_print("WARNING socket still blocking!");
return;
return 0;
}
if (sock->flags & SOCK_FLG_SEL_READ && sock->recv_head)
m->DEV_SEL_OPS |= SEL_RD;
sel |= SEL_RD;
if (m->DEV_SEL_OPS)
if (sel)
sock->flags &= ~(SOCK_FLG_SEL_WRITE | SOCK_FLG_SEL_READ |
SOCK_FLG_SEL_ERROR);
return sel;
}

231
servers/lwip/driver.c
View file

@ -258,11 +258,11 @@ __unused static void print_pkt(unsigned char * pkt, int len)
printf("--- PKT END ---\n");
}
static int raw_receive(message * m,
static int raw_receive(struct sock_req *req,
struct pbuf *pbuf)
{
struct pbuf * p;
unsigned int rem_len = m->COUNT;
unsigned int rem_len = req->size;
unsigned int written = 0;
int err;
@ -272,10 +272,8 @@ static int raw_receive(message * m,
size_t cp_len;
cp_len = (rem_len < p->len) ? rem_len : p->len;
err = copy_to_user(m->m_source, p->payload, cp_len,
(cp_grant_id_t) m->IO_GRANT,
written);
err = copy_to_user(req->endpt, p->payload, cp_len,
req->grant, written);
if (err != OK)
return err;
@ -300,16 +298,13 @@ int raw_socket_input(struct pbuf * pbuf, struct nic * nic)
if (sock->flags & SOCK_FLG_OP_PENDING) {
int ret;
/* we are resuming a suspended operation */
ret = raw_receive(&sock->mess, pbuf);
ret = raw_receive(&sock->req, pbuf);
if (ret > 0) {
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
send_req_reply(&sock->req, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
if (ret > 0)
return 0;
} else {
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
}
}
/* Do not enqueue more data than allowed */
@ -453,11 +448,11 @@ static void raw_recv_free(__unused void * data)
pbuf_free((struct pbuf *) data);
}
static void nic_op_close(struct socket * sock, __unused message * m)
static int nic_op_close(struct socket * sock)
{
struct nic * nic = (struct nic *)sock->data;
debug_drv_print("socket %d", get_sock_num(sock));
debug_drv_print("socket %ld", get_sock_num(sock));
sock_dequeue_data_all(sock, raw_recv_free);
sock->ops = NULL;
@ -467,20 +462,20 @@ static void nic_op_close(struct socket * sock, __unused message * m)
debug_drv_print("no active raw sock at %s", nic->name);
}
sock_reply_close(sock, OK);
return OK;
}
static void nic_ioctl_set_conf(__unused struct socket * sock,
static int nic_ioctl_set_conf(__unused struct socket * sock,
struct nic * nic,
message * m)
endpoint_t endpt,
cp_grant_id_t grant)
{
nwio_ipconf_t ipconf;
int err;
err = copy_from_user(m->m_source, &ipconf, sizeof(ipconf),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &ipconf, sizeof(ipconf), grant, 0);
if (err != OK)
send_reply(m, err);
return err;
if (ipconf.nwic_flags & NWIC_IPADDR_SET)
netif_set_ipaddr(&nic->netif,
@ -492,51 +487,47 @@ static void nic_ioctl_set_conf(__unused struct socket * sock,
if (nic->flags & NWEO_EN_BROAD)
nic->netif.flags |= NETIF_FLAG_BROADCAST;
send_reply(m, OK);
return OK;
}
static void nic_ioctl_get_conf(__unused struct socket * sock,
static int nic_ioctl_get_conf(__unused struct socket * sock,
struct nic * nic,
message * m)
endpoint_t endpt,
cp_grant_id_t grant)
{
nwio_ipconf_t ipconf;
int err;
ipconf.nwic_flags = nic->flags;
ipconf.nwic_ipaddr = nic->netif.ip_addr.addr;
ipconf.nwic_netmask = nic->netif.netmask.addr;
ipconf.nwic_mtu = nic->netif.mtu;
err = copy_to_user(m->m_source, &ipconf, sizeof(ipconf),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
send_reply(m, err);
send_reply(m, OK);
return copy_to_user(endpt, &ipconf, sizeof(ipconf), grant, 0);
}
static void nic_ioctl_set_gateway(__unused struct socket * sock,
static int nic_ioctl_set_gateway(__unused struct socket * sock,
struct nic * nic,
message * m)
endpoint_t endpt,
cp_grant_id_t grant)
{
nwio_route_t route;
int err;
err = copy_from_user(m->m_source, &route, sizeof(route),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &route, sizeof(route), grant, 0);
if (err != OK)
send_reply(m, err);
return err;
netif_set_gw(&nic->netif, (ip_addr_t *)&route.nwr_gateway);
send_reply(m, OK);
return OK;
}
static void nic_ioctl_get_ethstat(__unused struct socket * sock,
static int nic_ioctl_get_ethstat(__unused struct socket * sock,
struct nic * nic,
message * m)
endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_ethstat_t ethstat;
debug_drv_print("device /dev/%s", nic->name);
@ -548,34 +539,27 @@ static void nic_ioctl_get_ethstat(__unused struct socket * sock,
!(nic->netif.flags & (NETIF_FLAG_ETHERNET |
NETIF_FLAG_ETHARP))) {
printf("LWIP no such device FUCK\n");
send_reply(m, ENODEV);
return;
return ENODEV;
}
memset(&ethstat, 0, sizeof(ethstat));
memcpy(&ethstat.nwes_addr, nic->netif.hwaddr, 6);
err = copy_to_user(m->m_source, &ethstat, sizeof(ethstat),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
send_reply(m, err);
send_reply(m, OK);
return copy_to_user(endpt, &ethstat, sizeof(ethstat), grant, 0);
}
static void nic_ioctl_set_ethopt(struct socket * sock,
static int nic_ioctl_set_ethopt(struct socket * sock,
struct nic * nic,
message * m)
endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_ethopt_t ethopt;
assert(nic);
if (!sock) {
send_reply(m, EINVAL);
return;
}
if (!sock)
return EINVAL;
debug_drv_print("device /dev/%s", nic->name);
/*
@ -585,83 +569,83 @@ static void nic_ioctl_set_ethopt(struct socket * sock,
if (!nic->netif.flags & NETIF_FLAG_UP ||
!(nic->netif.flags & (NETIF_FLAG_ETHERNET |
NETIF_FLAG_ETHARP))) {
send_reply(m, ENODEV);
return;
return ENODEV;
}
err = copy_from_user(m->m_source, &ethopt, sizeof(ethopt),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &ethopt, sizeof(ethopt), grant, 0);
if (err != OK)
send_reply(m, err);
return err;
/* we want to get data from this sock */
if (ethopt.nweo_flags & NWEO_COPY) {
if (nic->raw_socket) {
send_reply(m, EBUSY);
return;
}
if (nic->raw_socket)
return EBUSY;
nic->raw_socket = sock;
debug_drv_print("active raw sock %d at %s",
debug_drv_print("active raw sock %ld at %s",
get_sock_num(sock), nic->name);
}
send_reply(m, OK);
return OK;
}
static void nic_do_ioctl(struct socket * sock, struct nic * nic, message * m)
static int nic_do_ioctl(struct socket * sock, struct nic * nic,
struct sock_req * req)
{
debug_print("device /dev/%s req %c %d %d",
nic->name,
(m->REQUEST >> 8) & 0xff,
m->REQUEST & 0xff,
(m->REQUEST >> 16) & _IOCPARM_MASK);
debug_drv_print("socket %d", sock ? get_sock_num(sock) : -1);
int r;
switch (m->REQUEST) {
debug_print("device /dev/%s req %c %ld %ld",
nic->name,
(unsigned char) (req->req >> 8),
req->req & 0xff,
(req->req >> 16) & _IOCPARM_MASK);
debug_drv_print("socket %ld", sock ? get_sock_num(sock) : -1);
switch (req->req) {
case NWIOSIPCONF:
nic_ioctl_set_conf(sock, nic, m);
r = nic_ioctl_set_conf(sock, nic, req->endpt, req->grant);
break;
case NWIOGIPCONF:
nic_ioctl_get_conf(sock, nic, m);
r = nic_ioctl_get_conf(sock, nic, req->endpt, req->grant);
break;
case NWIOSIPOROUTE:
nic_ioctl_set_gateway(sock, nic, m);
r = nic_ioctl_set_gateway(sock, nic, req->endpt, req->grant);
break;
case NWIOGETHSTAT:
nic_ioctl_get_ethstat(sock, nic, m);
r = nic_ioctl_get_ethstat(sock, nic, req->endpt, req->grant);
break;
case NWIOSETHOPT:
nic_ioctl_set_ethopt(sock, nic, m);
r = nic_ioctl_set_ethopt(sock, nic, req->endpt, req->grant);
break;
default:
send_reply(m, EBADIOCTL);
return;
r = ENOTTY;
}
return r;
}
void nic_default_ioctl(message *m)
int nic_default_ioctl(struct sock_req *req)
{
struct nic * nic = lookup_nic_default();
if (nic == NULL) {
debug_print("No default nic, reporting error");
send_reply(m, EBADIOCTL);
return;
return ENOTTY;
}
nic_do_ioctl(NULL, nic, m);
return nic_do_ioctl(NULL, nic, req);
}
static void nic_op_ioctl(struct socket * sock, message * m, __unused int blk)
static int nic_op_ioctl(struct socket * sock, struct sock_req * req,
__unused int blk)
{
nic_do_ioctl(sock, (struct nic *)sock->data, m);
return nic_do_ioctl(sock, (struct nic *)sock->data, req);
}
static void nic_op_read(struct socket * sock, message * m, int blk)
static int nic_op_read(struct socket * sock, struct sock_req * req, int blk)
{
debug_drv_print("sock num %d", get_sock_num(sock));
debug_drv_print("sock num %ld", get_sock_num(sock));
if (sock->recv_head) {
/* data available receive immeditely */
@ -671,59 +655,56 @@ static void nic_op_read(struct socket * sock, message * m, int blk)
pbuf = sock->recv_head->data;
ret = raw_receive(m, pbuf);
ret = raw_receive(req, pbuf);
if (ret > 0) {
sock_dequeue_data(sock);
sock->recv_data_size -= pbuf->tot_len;
pbuf_free(pbuf);
}
sock_reply(sock, ret);
return ret;
} else if (!blk)
send_reply(m, EAGAIN);
return EAGAIN;
else {
/* store the message so we know how to reply */
sock->mess = *m;
/* store the request so we know how to reply */
sock->req = *req;
/* operation is being processes */
sock->flags |= SOCK_FLG_OP_PENDING;
debug_print("no data to read, suspending");
return EDONTREPLY;
}
}
static void nic_op_write(struct socket * sock, message * m, __unused int blk)
static int nic_op_write(struct socket * sock, struct sock_req * req,
__unused int blk)
{
int ret;
struct pbuf * pbuf;
struct nic * nic = (struct nic *)sock->data;
assert(nic);
debug_print("device %s data size %d", nic->name,
get_sock_num(sock), m->COUNT);
debug_print("device %s data size %u", nic->name, req->size);
pbuf = pbuf_alloc(PBUF_RAW, m->COUNT, PBUF_RAM);
if (!pbuf) {
ret = ENOMEM;
goto write_err;
}
pbuf = pbuf_alloc(PBUF_RAW, req->size, PBUF_RAM);
if (!pbuf)
return ENOMEM;
if ((ret = copy_from_user(m->m_source, pbuf->payload, m->COUNT,
(cp_grant_id_t) m->IO_GRANT, 0)) != OK) {
if ((ret = copy_from_user(req->endpt, pbuf->payload, req->size,
req->grant, 0)) != OK) {
pbuf_free(pbuf);
goto write_err;
return ret;
}
if ((ret = nic->netif.linkoutput(&nic->netif, pbuf) != ERR_OK)) {
debug_print("raw linkoutput failed %d", ret);
ret = EIO;
} else
ret = m->COUNT;
ret = req->size;
pbuf_free(pbuf);
write_err:
sock_reply(sock, ret);
return ret;
}
static struct sock_ops nic_ops = {
@ -735,34 +716,28 @@ static struct sock_ops nic_ops = {
.select_reply = generic_op_select_reply
};
void nic_open(message *m)
int nic_open(devminor_t minor)
{
struct socket * sock;
debug_print("device %d", m->DEVICE);
debug_print("device %d", minor);
if (m->DEVICE > MAX_DEVS || devices[m->DEVICE].drv_ep == NONE) {
send_reply_open(m, ENODEV);
return;
}
if (minor > MAX_DEVS || devices[minor].drv_ep == NONE)
return ENODEV;
sock = get_unused_sock();
if (sock == NULL) {
send_reply(m, ENODEV);
return;
}
if (sock->ops != NULL) {
send_reply(m, EBUSY);
return;
}
if (sock == NULL)
return ENODEV;
if (sock->ops != NULL)
return EBUSY;
sock->ops = &nic_ops;
sock->select_ep = NONE;
sock->recv_data_size = 0;
sock->data = &devices[m->DEVICE];
sock->data = &devices[minor];
send_reply_open(m, get_sock_num(sock));
return get_sock_num(sock);
}
static int driver_pkt_enqueue(struct packet_q ** head,

1
servers/lwip/eth.c
View file

@ -44,6 +44,7 @@
*/
#include <minix/sysutil.h>
#include <minix/netsock.h>
#include "lwip/opt.h"

3
servers/lwip/inet_config.c
View file

@ -22,11 +22,10 @@ Copyright 1995 Philip Homburg
#include <minix/type.h>
#include <minix/sysutil.h>
#include <minix/syslib.h>
#include <minix/netsock.h>
#include "inet_config.h"
#include "proto.h"
#include <minix/netsock.h>
struct eth_conf eth_conf[IP_PORT_MAX];
struct psip_conf psip_conf[IP_PORT_MAX];

27
servers/lwip/lwip.c
View file

@ -206,13 +206,13 @@ static void netif_poll_lo(void)
netif_poll(netif_lo);
}
void socket_open(message * m)
int socket_open(devminor_t minor)
{
struct sock_ops * ops;
struct socket * sock;
int ret = OK;
switch (m->DEVICE) {
switch (minor) {
case SOCK_TYPE_TCP:
ops = &sock_tcp_ops;
break;
@ -223,21 +223,17 @@ void socket_open(message * m)
ops = &sock_raw_ip_ops;
break;
default:
if (m->DEVICE - SOCK_TYPES < MAX_DEVS) {
m->DEVICE -= SOCK_TYPES;
nic_open(m);
return;
}
printf("LWIP unknown socket type %d\n", m->DEVICE);
send_reply_open(m, EINVAL);
return;
if (minor - SOCK_TYPES < MAX_DEVS)
return nic_open(minor - SOCK_TYPES);
printf("LWIP unknown socket type %d\n", minor);
return EINVAL;
}
sock = get_unused_sock();
if (!sock) {
printf("LWIP : no free socket\n");
send_reply_open(m, EAGAIN);
return;
return EAGAIN;
}
sock->ops = ops;
@ -245,15 +241,16 @@ void socket_open(message * m)
sock->recv_data_size = 0;
if (sock->ops && sock->ops->open)
ret = sock->ops->open(sock, m);
ret = sock->ops->open(sock);
if (ret == OK) {
debug_print("new socket %ld", get_sock_num(sock));
send_reply_open(m, get_sock_num(sock));
ret = get_sock_num(sock);
} else {
debug_print("failed %d", ret);
send_reply_open(m, ret);
/* FIXME: shouldn't sock be freed now? */
}
return ret;
}
int main(__unused int argc, __unused char ** argv)

4
servers/lwip/proto.h
View file

@ -28,8 +28,8 @@ void nic_init_all(void);
void driver_request(message * m);
void driver_up(const char * label, endpoint_t ep);
/* opens a raw NIC socket */
void nic_open(message *m);
void nic_default_ioctl(message *m);
int nic_open(devminor_t minor);
int nic_default_ioctl(struct sock_req *req);
/* inet_config.c */
void inet_read_conf(void);

146
servers/lwip/raw_ip.c
View file

@ -30,7 +30,7 @@ static void raw_ip_recv_free(void * data)
}
static int raw_ip_op_open(struct socket * sock, __unused message * m)
static int raw_ip_op_open(struct socket * sock)
{
debug_print("socket num %ld", get_sock_num(sock));
@ -56,31 +56,30 @@ static void raw_ip_close(struct socket * sock)
sock->ops = NULL;
}
static void raw_ip_op_close(struct socket * sock, __unused message * m)
static int raw_ip_op_close(struct socket * sock)
{
debug_print("socket num %ld", get_sock_num(sock));
raw_ip_close(sock);
sock_reply_close(sock, OK);
return OK;
}
static int raw_ip_do_receive(message * m,
static int raw_ip_do_receive(struct sock_req *req,
struct pbuf *pbuf)
{
struct pbuf * p;
unsigned int rem_len = m->COUNT;
size_t rem_len = req->size;
unsigned int written = 0, hdr_sz = 0;
int err;
debug_print("user buffer size : %d\n", rem_len);
debug_print("user buffer size : %u\n", rem_len);
for (p = pbuf; p && rem_len; p = p->next) {
size_t cp_len;
cp_len = (rem_len < p->len) ? rem_len : p->len;
err = copy_to_user(m->m_source, p->payload, cp_len,
(cp_grant_id_t) m->IO_GRANT,
err = copy_to_user(req->endpt, p->payload, cp_len, req->grant,
hdr_sz + written);
if (err != OK)
@ -108,19 +107,17 @@ static u8_t raw_ip_op_receive(void *arg,
if (sock->flags & SOCK_FLG_OP_PENDING) {
/* we are resuming a suspended operation */
ret = raw_ip_do_receive(&sock->mess, pbuf);
ret = raw_ip_do_receive(&sock->req, pbuf);
send_req_reply(&sock->req, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
if (ret > 0) {
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
if (sock->usr_flags & NWIO_EXCL) {
pbuf_free(pbuf);
return 1;
} else
return 0;
} else {
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
}
}
@ -170,14 +167,12 @@ static u8_t raw_ip_op_receive(void *arg,
return ret;
}
static void raw_ip_op_read(struct socket * sock, message * m, int blk)
static int raw_ip_op_read(struct socket * sock, struct sock_req * req, int blk)
{
debug_print("socket num %ld", get_sock_num(sock));
if (sock->pcb == NULL) {
sock_reply(sock, EIO);
return;
}
if (sock->pcb == NULL)
return EIO;
if (sock->recv_head) {
/* data available receive immeditely */
@ -187,62 +182,57 @@ static void raw_ip_op_read(struct socket * sock, message * m, int blk)
data = (struct raw_ip_recv_data *) sock->recv_head->data;
ret = raw_ip_do_receive(m, data->pbuf);
ret = raw_ip_do_receive(req, data->pbuf);
if (ret > 0) {
sock_dequeue_data(sock);
sock->recv_data_size -= data->pbuf->tot_len;
raw_ip_recv_free(data);
}
sock_reply(sock, ret);
return ret;
} else if (!blk)
sock_reply(sock, EAGAIN);
return EAGAIN;
else {
/* store the message so we know how to reply */
sock->mess = *m;
/* store the request so we know how to reply */
sock->req = *req;
/* operation is being processes */
sock->flags |= SOCK_FLG_OP_PENDING;
debug_print("no data to read, suspending");
return EDONTREPLY;
}
}
static void raw_ip_op_write(struct socket * sock, message * m, __unused int blk)
static int raw_ip_op_write(struct socket * sock, struct sock_req * req,
__unused int blk)
{
int ret;
struct pbuf * pbuf;
struct ip_hdr * ip_hdr;
debug_print("socket num %ld data size %d",
get_sock_num(sock), m->COUNT);
debug_print("socket num %ld data size %u",
get_sock_num(sock), req->size);
if (sock->pcb == NULL) {
ret = EIO;
goto write_err;
}
if (sock->pcb == NULL)
return EIO;
if ((size_t) m->COUNT > sock->buf_size) {
ret = ENOMEM;
goto write_err;
}
if (req->size > sock->buf_size)
return ENOMEM;
pbuf = pbuf_alloc(PBUF_LINK, m->COUNT, PBUF_RAM);
if (!pbuf) {
ret = ENOMEM;
goto write_err;
}
pbuf = pbuf_alloc(PBUF_LINK, req->size, PBUF_RAM);
if (!pbuf)
return ENOMEM;
if ((ret = copy_from_user(m->m_source, pbuf->payload, m->COUNT,
(cp_grant_id_t) m->IO_GRANT, 0)) != OK) {
if ((ret = copy_from_user(req->endpt, pbuf->payload, req->size,
req->grant, 0)) != OK) {
pbuf_free(pbuf);
goto write_err;
return ret;
}
ip_hdr = (struct ip_hdr *) pbuf->payload;
if (pbuf_header(pbuf, -IP_HLEN)) {
pbuf_free(pbuf);
ret = EIO;
goto write_err;
return EIO;
}
if ((ret = raw_sendto((struct raw_pcb *)sock->pcb, pbuf,
@ -250,28 +240,27 @@ static void raw_ip_op_write(struct socket * sock, message * m, __unused int blk)
debug_print("raw_sendto failed %d", ret);
ret = EIO;
} else
ret = m->COUNT;
ret = req->size;
pbuf_free(pbuf);
write_err:
sock_reply(sock, ret);
return ret;
}
static void raw_ip_set_opt(struct socket * sock, message * m)
static int raw_ip_set_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_ipopt_t ipopt;
struct raw_pcb * pcb;
err = copy_from_user(m->m_source, &ipopt, sizeof(ipopt),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &ipopt, sizeof(ipopt), grant, 0);
if (err != OK)
sock_reply(sock, err);
return err;
debug_print("ipopt.nwio_flags = 0x%lx", ipopt.nwio_flags);
debug_print("ipopt.nwio_flags = 0x%x", ipopt.nwio_flags);
debug_print("ipopt.nwio_proto = 0x%x", ipopt.nwio_proto);
debug_print("ipopt.nwio_rem = 0x%x",
(unsigned int) ipopt.nwio_rem);
@ -279,8 +268,7 @@ static void raw_ip_set_opt(struct socket * sock, message * m)
if (sock->pcb == NULL) {
if (!(pcb = raw_new(ipopt.nwio_proto))) {
raw_ip_close(sock);
sock_reply(sock, ENOMEM);
return;
return ENOMEM;
}
sock->pcb = pcb;
@ -289,7 +277,7 @@ static void raw_ip_set_opt(struct socket * sock, message * m)
if (pcb->protocol != ipopt.nwio_proto) {
debug_print("conflicting ip socket protocols\n");
sock_reply(sock, EBADIOCTL);
return EINVAL;
}
sock->usr_flags = ipopt.nwio_flags;
@ -297,20 +285,19 @@ static void raw_ip_set_opt(struct socket * sock, message * m)
#if 0
if (raw_bind(pcb, (ip_addr_t *)&ipopt.nwio_rem) == ERR_USE) {
raw_ip_close(sock);
sock_reply(sock, EADDRINUSE);
return;
return EADDRINUSE;
}
#endif
/* register a receive hook */
raw_recv((struct raw_pcb *) sock->pcb, raw_ip_op_receive, sock);
sock_reply(sock, OK);
return OK;
}
static void raw_ip_get_opt(struct socket * sock, message * m)
static int raw_ip_get_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_ipopt_t ipopt;
struct raw_pcb * pcb = (struct raw_pcb *) sock->pcb;
@ -319,43 +306,36 @@ static void raw_ip_get_opt(struct socket * sock, message * m)
ipopt.nwio_rem = pcb->remote_ip.addr;
ipopt.nwio_flags = sock->usr_flags;
if ((unsigned int) m->COUNT < sizeof(ipopt)) {
sock_reply(sock, EINVAL);
return;
}
err = copy_to_user(m->m_source, &ipopt, sizeof(ipopt),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
sock_reply(sock, err);
sock_reply(sock, OK);
return copy_to_user(endpt, &ipopt, sizeof(ipopt), grant, 0);
}
static void raw_ip_op_ioctl(struct socket * sock, message * m, __unused int blk)
static int raw_ip_op_ioctl(struct socket * sock, struct sock_req * req,
__unused int blk)
{
debug_print("socket num %ld req %c %d %d",
int r;
debug_print("socket num %ld req %c %ld %ld",
get_sock_num(sock),
(m->REQUEST >> 8) & 0xff,
m->REQUEST & 0xff,
(m->REQUEST >> 16) & _IOCPARM_MASK);
(unsigned char) (req->req >> 8),
req->req & 0xff,
(req->req >> 16) & _IOCPARM_MASK);
switch (m->REQUEST) {
switch (req->req) {
case NWIOSIPOPT:
raw_ip_set_opt(sock, m);
r = raw_ip_set_opt(sock, req->endpt, req->grant);
break;
case NWIOGIPOPT:
raw_ip_get_opt(sock, m);
r = raw_ip_get_opt(sock, req->endpt, req->grant);
break;
default:
/*
* /dev/ip can be also accessed as a default device to be
* configured
*/
nic_default_ioctl(m);
return;
r = nic_default_ioctl(req);
}
return r;
}
struct sock_ops sock_raw_ip_ops = {

290
servers/lwip/tcp.c
View file

@ -65,9 +65,10 @@ static void tcp_error_callback(void *arg, err_t err)
default:
perr = EIO;
}
/* FIXME: what if this is for a write that was already replied to? */
if (sock->flags & SOCK_FLG_OP_PENDING) {
sock_reply(sock, perr);
send_req_reply(&sock->req, perr);
sock->flags &= ~SOCK_FLG_OP_PENDING;
} else if (sock_select_set(sock))
sock_select_notify(sock);
@ -98,7 +99,7 @@ static int tcp_fill_new_socket(struct socket * sock, struct tcp_pcb * pcb)
return OK;
}
static int tcp_op_open(struct socket * sock, __unused message * m)
static int tcp_op_open(struct socket * sock)
{
struct tcp_pcb * pcb;
int ret;
@ -142,7 +143,7 @@ static void free_wbuf_chain(struct wbuf_chain * wc)
debug_free(wc);
}
static void tcp_op_close(struct socket * sock, __unused message * m)
static int tcp_op_close(struct socket * sock)
{
debug_tcp_print("socket num %ld", get_sock_num(sock));
@ -175,11 +176,12 @@ static void tcp_op_close(struct socket * sock, __unused message * m)
}
debug_tcp_print("freed TX data");
sock_reply_close(sock, OK);
debug_tcp_print("socket unused");
/* mark it as unused */
sock->ops = NULL;
return OK;
}
__unused static void print_tcp_payload(unsigned char * buf, int len)
@ -195,14 +197,14 @@ __unused static void print_tcp_payload(unsigned char * buf, int len)
kputc('\n');
}
static int read_from_tcp(struct socket * sock, message * m)
static int read_from_tcp(struct socket * sock, struct sock_req * req)
{
unsigned int rem_buf, written = 0;
struct pbuf * p;
assert(!(sock->flags & SOCK_FLG_OP_LISTENING) && sock->recv_head);
rem_buf = m->COUNT;
rem_buf = req->size;
debug_tcp_print("socket num %ld recv buff sz %d", get_sock_num(sock), rem_buf);
@ -220,8 +222,8 @@ static int read_from_tcp(struct socket * sock, message * m)
#if 0
print_tcp_payload(p->payload, p->len);
#endif
err = copy_to_user(m->m_source, p->payload, p->len,
(cp_grant_id_t) m->IO_GRANT, written);
err = copy_to_user(req->endpt, p->payload, p->len,
req->grant, written);
if (err != OK)
goto cp_error;
sock->recv_data_size -= p->len;
@ -261,8 +263,8 @@ static int read_from_tcp(struct socket * sock, message * m)
#if 0
print_tcp_payload(p->payload, rem_buf);
#endif
err = copy_to_user(m->m_source, p->payload, rem_buf,
(cp_grant_id_t) m->IO_GRANT, written);
err = copy_to_user(req->endpt, p->payload, rem_buf,
req->grant, written);
if (err != OK)
goto cp_error;
sock->recv_data_size -= rem_buf;
@ -292,37 +294,36 @@ cp_error:
return EFAULT;
}
static void tcp_op_read(struct socket * sock, message * m, int blk)
static int tcp_op_read(struct socket * sock, struct sock_req * req, int blk)
{
debug_tcp_print("socket num %ld", get_sock_num(sock));
if (!sock->pcb || ((struct tcp_pcb *) sock->pcb)->state !=
ESTABLISHED) {
debug_tcp_print("Connection not established\n");
sock_reply(sock, ENOTCONN);
return;
return ENOTCONN;
}
if (sock->recv_head) {
/* data available receive immeditely */
int ret = read_from_tcp(sock, m);
int ret = read_from_tcp(sock, req);
debug_tcp_print("read op finished");
sock_reply(sock, ret);
return ret;
} else {
if (sock->flags & SOCK_FLG_CLOSED) {
printf("socket %ld already closed!!! call from %d\n",
get_sock_num(sock), m->USER_ENDPT);
get_sock_num(sock), req->endpt);
do_tcp_debug = 1;
sock_reply(sock, 0);
return;
return 0;
}
if (!blk) {
debug_tcp_print("reading would block -> EAGAIN");
sock_reply(sock, EAGAIN);
return;
return EAGAIN;
}
/* operation is being processed */
sock->req = *req;
debug_tcp_print("no data to read, suspending");
sock->flags |= SOCK_FLG_OP_PENDING | SOCK_FLG_OP_READING;
return EDONTREPLY;
}
}
@ -389,7 +390,8 @@ static struct wbuf * wbuf_ack_sent(struct socket * sock, unsigned int sz)
return wc->head;
}
static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
static int tcp_op_write(struct socket * sock, struct sock_req * req,
__unused int blk)
{
int ret;
struct wbuf * wbuf;
@ -397,12 +399,10 @@ static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
u8_t flgs = 0;
if (!sock->pcb) {
sock_reply(sock, ENOTCONN);
return;
}
if (!sock->pcb)
return ENOTCONN;
usr_buf_len = m->COUNT;
usr_buf_len = req->size;
debug_tcp_print("socket num %ld data size %d",
get_sock_num(sock), usr_buf_len);
@ -413,8 +413,7 @@ static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
if (sock->buf_size >= TCP_BUF_SIZE) {
/* FIXME do not block for now */
debug_tcp_print("WARNING : tcp buffers too large, cannot allocate more");
sock_reply(sock, ENOMEM);
return;
return ENOMEM;
}
/*
* Never let the allocated buffers grow more than to 2xTCP_BUF_SIZE and
@ -426,13 +425,12 @@ static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
if (!wbuf) {
debug_tcp_print("cannot allocate new buffer of %d bytes", usr_buf_len);
sock_reply(sock, ENOMEM);
return ENOMEM;
}
if ((ret = copy_from_user(m->m_source, wbuf->data, usr_buf_len,
(cp_grant_id_t) m->IO_GRANT, 0)) != OK) {
sock_reply(sock, ret);
return;
if ((ret = copy_from_user(req->endpt, wbuf->data, usr_buf_len,
req->grant, 0)) != OK) {
return ret;
}
wbuf->written = 0;
@ -453,15 +451,18 @@ static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
debug_tcp_print("unsent %p remains %d\n", wbuf, wbuf->rem_len);
}
debug_tcp_print("returns %d\n", usr_buf_len);
sock_reply(sock, usr_buf_len);
/*
* We cannot accept new operations (write). We set the flag
* after sending reply not to revive only. We could deadlock.
*/
/*
* FIXME: this looks like bad logic. We acknowledge the write
* operation, so we will never reply to it or cancel it later.
*/
if (sock->buf_size >= TCP_BUF_SIZE)
sock->flags |= SOCK_FLG_OP_PENDING;
return;
return usr_buf_len;
}
/*
@ -496,15 +497,20 @@ static void tcp_op_write(struct socket * sock, message * m, __unused int blk)
* in this case, we are going to reply immediatly
*/
debug_tcp_print("returns %d\n", usr_buf_len);
sock_reply(sock, usr_buf_len);
sock->flags |= SOCK_FLG_OP_WRITING;
/*
* FIXME: this looks like bad logic. We acknowledge the write
* operation, so we will never reply to it or cancel it later.
*/
if (sock->buf_size >= TCP_BUF_SIZE)
sock->flags |= SOCK_FLG_OP_PENDING;
return usr_buf_len;
} else
sock_reply(sock, EIO);
return EIO;
}
static void tcp_set_conf(struct socket * sock, message * m)
static int tcp_set_conf(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_tcpconf_t tconf;
@ -514,13 +520,12 @@ static void tcp_set_conf(struct socket * sock, message * m)
assert(pcb);
err = copy_from_user(m->m_source, &tconf, sizeof(tconf),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &tconf, sizeof(tconf), grant, 0);
if (err != OK)
sock_reply(sock, err);
return err;
debug_tcp_print("tconf.nwtc_flags = 0x%lx", tconf.nwtc_flags);
debug_tcp_print("tconf.nwtc_flags = 0x%x", tconf.nwtc_flags);
debug_tcp_print("tconf.nwtc_remaddr = 0x%x",
(unsigned int) tconf.nwtc_remaddr);
debug_tcp_print("tconf.nwtc_remport = 0x%x", ntohs(tconf.nwtc_remport));
@ -538,17 +543,16 @@ static void tcp_set_conf(struct socket * sock, message * m)
if (sock->usr_flags & NWTC_LP_SET) {
/* FIXME the user library can only bind to ANY anyway */
if (tcp_bind(pcb, IP_ADDR_ANY, ntohs(tconf.nwtc_locport)) == ERR_USE) {
sock_reply(sock, EADDRINUSE);
return;
return EADDRINUSE;
}
}
sock_reply(sock, OK);
return OK;
}
static void tcp_get_conf(struct socket * sock, message * m)
static int tcp_get_conf(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_tcpconf_t tconf;
struct tcp_pcb * pcb = (struct tcp_pcb *) sock->pcb;
@ -562,7 +566,7 @@ static void tcp_get_conf(struct socket * sock, message * m)
tconf.nwtc_remport = htons(pcb->remote_port);
tconf.nwtc_flags = sock->usr_flags;
debug_tcp_print("tconf.nwtc_flags = 0x%lx", tconf.nwtc_flags);
debug_tcp_print("tconf.nwtc_flags = 0x%x", tconf.nwtc_flags);
debug_tcp_print("tconf.nwtc_remaddr = 0x%x",
(unsigned int) tconf.nwtc_remaddr);
debug_tcp_print("tconf.nwtc_remport = 0x%x", ntohs(tconf.nwtc_remport));
@ -570,18 +574,7 @@ static void tcp_get_conf(struct socket * sock, message * m)
(unsigned int) tconf.nwtc_locaddr);
debug_tcp_print("tconf.nwtc_locport = 0x%x", ntohs(tconf.nwtc_locport));
if ((unsigned int) m->COUNT < sizeof(tconf)) {
sock_reply(sock, EINVAL);
return;
}
err = copy_to_user(m->m_source, &tconf, sizeof(tconf),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
sock_reply(sock, err);
sock_reply(sock, OK);
return copy_to_user(endpt, &tconf, sizeof(tconf), grant, 0);
}
static int enqueue_rcv_data(struct socket * sock, struct pbuf * pbuf)
@ -627,7 +620,7 @@ static err_t tcp_recv_callback(void *arg,
/* wake up the reader and report EOF */
if (sock->flags & SOCK_FLG_OP_PENDING &&
sock->flags & SOCK_FLG_OP_READING) {
sock_reply(sock, 0);
send_req_reply(&sock->req, 0);
sock->flags &= ~(SOCK_FLG_OP_PENDING |
SOCK_FLG_OP_READING);
}
@ -655,9 +648,9 @@ static err_t tcp_recv_callback(void *arg,
*/
if (sock->flags & SOCK_FLG_OP_PENDING) {
if (sock->flags & SOCK_FLG_OP_READING) {
ret = read_from_tcp(sock, &sock->mess);
ret = read_from_tcp(sock, &sock->req);
debug_tcp_print("read op finished");
sock_reply(sock, ret);
send_req_reply(&sock->req, ret);
sock->flags &= ~(SOCK_FLG_OP_PENDING |
SOCK_FLG_OP_READING);
}
@ -692,7 +685,11 @@ static err_t tcp_sent_callback(void *arg, struct tcp_pcb *tpcb, u16_t len)
assert((struct tcp_pcb *)sock->pcb == tpcb);
/* operation must have been canceled, do not send any other data */
if (!sock->flags & SOCK_FLG_OP_PENDING)
/*
* FIXME: this looks like bad logic. We already acknowledged the write
* operation, so we should not set or check the OP_PENDING flag..
*/
if (!(sock->flags & SOCK_FLG_OP_PENDING))
return ERR_OK;
wbuf = wbuf_ack_sent(sock, len);
@ -797,7 +794,7 @@ static err_t tcp_connected_callback(void *arg,
tcp_sent(tpcb, tcp_sent_callback);
tcp_recv(tpcb, tcp_recv_callback);
sock_reply(sock, OK);
send_req_reply(&sock->req, OK);
sock->flags &= ~(SOCK_FLG_OP_PENDING | SOCK_FLG_OP_CONNECTING);
/* revive does the sock_select_notify() for us */
@ -805,7 +802,7 @@ static err_t tcp_connected_callback(void *arg,
return ERR_OK;
}
static void tcp_op_connect(struct socket * sock)
static int tcp_op_connect(struct socket * sock, struct sock_req * req)
{
ip_addr_t remaddr;
struct tcp_pcb * pcb;
@ -821,16 +818,18 @@ static void tcp_op_connect(struct socket * sock)
/* try to connect now */
pcb = (struct tcp_pcb *) sock->pcb;
remaddr = pcb->remote_ip;
sock->req = *req;
err = tcp_connect(pcb, &remaddr, pcb->remote_port,
tcp_connected_callback);
if (err == ERR_VAL)
panic("Wrong tcp_connect arguments");
if (err != ERR_OK)
panic("Other tcp_connect error %d\n", err);
return EDONTREPLY;
}
static int tcp_do_accept(struct socket * listen_sock,
message * m,
struct sock_req * req,
struct tcp_pcb * newpcb)
{
struct socket * newsock;
@ -839,8 +838,8 @@ static int tcp_do_accept(struct socket * listen_sock,
debug_tcp_print("socket num %ld", get_sock_num(listen_sock));
if ((ret = copy_from_user(m->m_source, &sock_num, sizeof(sock_num),
(cp_grant_id_t) m->IO_GRANT, 0)) != OK)
if ((ret = copy_from_user(req->endpt, &sock_num, sizeof(sock_num),
req->grant, 0)) != OK)
return EFAULT;
if (!is_valid_sock_num(sock_num))
return EBADF;
@ -877,8 +876,8 @@ static err_t tcp_accept_callback(void *arg, struct tcp_pcb *newpcb, err_t err)
if (sock->flags & SOCK_FLG_OP_PENDING) {
int ret;
ret = tcp_do_accept(sock, &sock->mess, newpcb);
sock_reply(sock, ret);
ret = tcp_do_accept(sock, &sock->req, newpcb);
send_req_reply(&sock->req, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
if (ret == OK) {
return ERR_OK;
@ -900,15 +899,18 @@ static err_t tcp_accept_callback(void *arg, struct tcp_pcb *newpcb, err_t err)
return ERR_OK;
}
static void tcp_op_listen(struct socket * sock, message * m)
static int tcp_op_listen(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int backlog, err;
struct tcp_pcb * new_pcb;
debug_tcp_print("socket num %ld", get_sock_num(sock));
err = copy_from_user(m->m_source, &backlog, sizeof(backlog),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &backlog, sizeof(backlog), grant, 0);
if (err != OK)
return err;
new_pcb = tcp_listen_with_backlog((struct tcp_pcb *) sock->pcb,
(u8_t) backlog);
@ -916,8 +918,7 @@ static void tcp_op_listen(struct socket * sock, message * m)
if (!new_pcb) {
debug_tcp_print("Cannot listen on socket %ld", get_sock_num(sock));
sock_reply(sock, EGENERIC);
return;
return EIO;
}
/* advertise that this socket is willing to accept connections */
@ -925,17 +926,16 @@ static void tcp_op_listen(struct socket * sock, message * m)
sock->flags |= SOCK_FLG_OP_LISTENING;
sock->pcb = new_pcb;
sock_reply(sock, OK);
return OK;
}
static void tcp_op_accept(struct socket * sock, message * m)
static int tcp_op_accept(struct socket * sock, struct sock_req * req)
{
debug_tcp_print("socket num %ld", get_sock_num(sock));
if (!(sock->flags & SOCK_FLG_OP_LISTENING)) {
debug_tcp_print("socket %ld does not listen\n", get_sock_num(sock));
sock_reply(sock, EINVAL);
return;
return EINVAL;
}
/* there is a connection ready to be accepted */
@ -946,19 +946,22 @@ static void tcp_op_accept(struct socket * sock, message * m)
pcb = (struct tcp_pcb *) sock->recv_head->data;
assert(pcb);
ret = tcp_do_accept(sock, m, pcb);
sock_reply(sock, ret);
ret = tcp_do_accept(sock, req, pcb);
if (ret == OK)
sock_dequeue_data(sock);
return;
return ret;
}
debug_tcp_print("no ready connection, suspending\n");
sock->req = *req;
sock->flags |= SOCK_FLG_OP_PENDING;
return EDONTREPLY;
}
static void tcp_op_shutdown_tx(struct socket * sock)
static int tcp_op_shutdown_tx(struct socket * sock)
{
err_t err;
@ -968,17 +971,16 @@ static void tcp_op_shutdown_tx(struct socket * sock)
switch (err) {
case ERR_OK:
sock_reply(sock, OK);
break;
return OK;
case ERR_CONN:
sock_reply(sock, ENOTCONN);
break;
return ENOTCONN;
default:
sock_reply(sock, EGENERIC);
return EIO;
}
}
static void tcp_op_get_cookie(struct socket * sock, message * m)
static int tcp_op_get_cookie(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
tcp_cookie_t cookie;
unsigned int sock_num;
@ -988,16 +990,12 @@ static void tcp_op_get_cookie(struct socket * sock, message * m)
sock_num = get_sock_num(sock);
memcpy(&cookie, &sock_num, sizeof(sock_num));
if (copy_to_user(m->m_source, &cookie, sizeof(sock),
(cp_grant_id_t) m->IO_GRANT, 0) == OK)
sock_reply(sock, OK);
else
sock_reply(sock, EFAULT);
return copy_to_user(endpt, &cookie, sizeof(sock), grant, 0);
}
static void tcp_get_opt(struct socket * sock, message * m)
static int tcp_get_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_tcpopt_t tcpopt;
struct tcp_pcb * pcb = (struct tcp_pcb *) sock->pcb;
@ -1005,26 +1003,15 @@ static void tcp_get_opt(struct socket * sock, message * m)
assert(pcb);
if ((unsigned int) m->COUNT < sizeof(tcpopt)) {
sock_reply(sock, EINVAL);
return;
}
/* FIXME : not used by the userspace library */
tcpopt.nwto_flags = 0;
err = copy_to_user(m->m_source, &tcpopt, sizeof(tcpopt),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
sock_reply(sock, err);
sock_reply(sock, OK);
return copy_to_user(endpt, &tcpopt, sizeof(tcpopt), grant, 0);
}
static void tcp_set_opt(struct socket * sock, message * m)
static int tcp_set_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_tcpopt_t tcpopt;
struct tcp_pcb * pcb = (struct tcp_pcb *) sock->pcb;
@ -1032,69 +1019,64 @@ static void tcp_set_opt(struct socket * sock, message * m)
assert(pcb);
err = copy_from_user(m->m_source, &tcpopt, sizeof(tcpopt),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
sock_reply(sock, err);
/* FIXME : The userspace library does not use this */
sock_reply(sock, OK);
return copy_from_user(endpt, &tcpopt, sizeof(tcpopt), grant, 0);
}
static void tcp_op_ioctl(struct socket * sock, message * m, __unused int blk)
static int tcp_op_ioctl(struct socket * sock, struct sock_req * req,
__unused int blk)
{
if (!sock->pcb) {
sock_reply(sock, ENOTCONN);
return;
}
int r;
debug_tcp_print("socket num %ld req %c %d %d",
if (!sock->pcb)
return ENOTCONN;
debug_tcp_print("socket num %ld req %c %ld %ld",
get_sock_num(sock),
(m->REQUEST >> 8) & 0xff,
m->REQUEST & 0xff,
(m->REQUEST >> 16) & _IOCPARM_MASK);
(unsigned char) (req->req >> 8),
req->req & 0xff,
(req->req >> 16) & _IOCPARM_MASK);
switch (m->REQUEST) {
switch (req->req) {
case NWIOGTCPCONF:
tcp_get_conf(sock, m);
r = tcp_get_conf(sock, req->endpt, req->grant);
break;
case NWIOSTCPCONF:
tcp_set_conf(sock, m);
r = tcp_set_conf(sock, req->endpt, req->grant);
break;
case NWIOTCPCONN:
tcp_op_connect(sock);
r = tcp_op_connect(sock, req);
break;
case NWIOTCPLISTENQ:
tcp_op_listen(sock, m);
r = tcp_op_listen(sock, req->endpt, req->grant);
break;
case NWIOGTCPCOOKIE:
tcp_op_get_cookie(sock, m);
r = tcp_op_get_cookie(sock, req->endpt, req->grant);
break;
case NWIOTCPACCEPTTO:
tcp_op_accept(sock, m);
r = tcp_op_accept(sock, req);
break;
case NWIOTCPSHUTDOWN:
tcp_op_shutdown_tx(sock);
r = tcp_op_shutdown_tx(sock);
break;
case NWIOGTCPOPT:
tcp_get_opt(sock, m);
r = tcp_get_opt(sock, req->endpt, req->grant);
break;
case NWIOSTCPOPT:
tcp_set_opt(sock, m);
r = tcp_set_opt(sock, req->endpt, req->grant);
break;
default:
sock_reply(sock, EBADIOCTL);
return;
r = ENOTTY;
}
return r;
}
static void tcp_op_select(struct socket * sock, __unused message * m)
static int tcp_op_select(struct socket * sock, unsigned int sel)
{
int retsel = 0, sel;
int retsel = 0;
sel = m->USER_ENDPT;
debug_tcp_print("socket num %ld 0x%x", get_sock_num(sock), sel);
/* in this case any operation would block, no error */
@ -1112,8 +1094,7 @@ static void tcp_op_select(struct socket * sock, __unused message * m)
if (sel & SEL_ERR)
sock->flags |= SOCK_FLG_SEL_ERROR;
}
sock_reply_select(sock, 0);
return;
return 0;
}
if (sel & SEL_RD) {
@ -1158,18 +1139,19 @@ static void tcp_op_select(struct socket * sock, __unused message * m)
if (sel & SEL_ERR && sel & SEL_NOTIFY)
sock->flags |= SOCK_FLG_SEL_ERROR;
sock_reply_select(sock, retsel);
return retsel;
}
static void tcp_op_select_reply(struct socket * sock, message * m)
static int tcp_op_select_reply(struct socket * sock)
{
unsigned int sel = 0;
assert(sock->select_ep != NONE);
debug_tcp_print("socket num %ld", get_sock_num(sock));
if (sock->flags & SOCK_FLG_OP_PENDING) {
debug_tcp_print("WARNING socket still blocking!");
return;
return EDONTREPLY;
}
if (sock->flags & SOCK_FLG_SEL_READ) {
@ -1178,7 +1160,7 @@ static void tcp_op_select_reply(struct socket * sock, message * m)
(!(sock->flags & SOCK_FLG_OP_LISTENING) &&
((struct tcp_pcb *) sock->pcb)->state !=
ESTABLISHED)) {
m->DEV_SEL_OPS |= SEL_RD;
sel |= SEL_RD;
debug_tcp_print("read won't block");
}
}
@ -1187,13 +1169,15 @@ static void tcp_op_select_reply(struct socket * sock, message * m)
(sock->pcb == NULL ||
((struct tcp_pcb *) sock->pcb)->state ==
ESTABLISHED)) {
m->DEV_SEL_OPS |= SEL_WR;
sel |= SEL_WR;
debug_tcp_print("write won't block");
}
if (m->DEV_SEL_OPS)
if (sel)
sock->flags &= ~(SOCK_FLG_SEL_WRITE | SOCK_FLG_SEL_READ |
SOCK_FLG_SEL_ERROR);
return sel;
}
struct sock_ops sock_tcp_ops = {

134
servers/lwip/udp.c
View file

@ -41,7 +41,7 @@ static void udp_recv_free(void * data)
debug_free(data);
}
static int udp_op_open(struct socket * sock, __unused message * m)
static int udp_op_open(struct socket * sock)
{
struct udp_pcb * pcb;
@ -58,7 +58,7 @@ static int udp_op_open(struct socket * sock, __unused message * m)
return OK;
}
static void udp_op_close(struct socket * sock, __unused message * m)
static int udp_op_close(struct socket * sock)
{
debug_udp_print("socket num %ld", get_sock_num(sock));
@ -72,22 +72,22 @@ static void udp_op_close(struct socket * sock, __unused message * m)
/* mark it as unused */
sock->ops = NULL;
sock_reply_close(sock, OK);
return OK;
}
static int udp_do_receive(struct socket * sock,
message * m,
struct sock_req * req,
struct udp_pcb *pcb,
struct pbuf *pbuf,
ip_addr_t *addr,
u16_t port)
{
struct pbuf * p;
unsigned int rem_len = m->COUNT;
size_t rem_len = req->size;
unsigned int written = 0, hdr_sz = 0;
int err;
debug_udp_print("user buffer size : %d", rem_len);
debug_udp_print("user buffer size : %u", rem_len);
/* FIXME make it both a single copy */
if (!(sock->usr_flags & NWUO_RWDATONLY)) {
@ -101,10 +101,8 @@ static int udp_do_receive(struct socket * sock,
hdr.uih_data_len = 0;
hdr.uih_ip_opt_len = 0;
err = copy_to_user(m->m_source,
&hdr, sizeof(hdr),
(cp_grant_id_t) m->IO_GRANT,
0);
err = copy_to_user(req->endpt, &hdr, sizeof(hdr), req->grant,
0);
if (err != OK)
return err;
@ -116,8 +114,7 @@ static int udp_do_receive(struct socket * sock,
size_t cp_len;
cp_len = (rem_len < p->len) ? rem_len : p->len;
err = copy_to_user(m->m_source, p->payload, cp_len,
(cp_grant_id_t) m->IO_GRANT,
err = copy_to_user(req->endpt, p->payload, cp_len, req->grant,
hdr_sz + written);
if (err != OK)
@ -147,16 +144,14 @@ static void udp_recv_callback(void *arg,
/* we are resuming a suspended operation */
int ret;
ret = udp_do_receive(sock, &sock->mess, pcb, pbuf, addr, port);
ret = udp_do_receive(sock, &sock->req, pcb, pbuf, addr, port);
send_req_reply(&sock->req, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
if (ret > 0) {
pbuf_free(pbuf);
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
return;
} else {
sock_reply(sock, ret);
sock->flags &= ~SOCK_FLG_OP_PENDING;
}
}
@ -193,7 +188,7 @@ static void udp_recv_callback(void *arg,
sock_select_notify(sock);
}
static void udp_op_read(struct socket * sock, message * m, int blk)
static int udp_op_read(struct socket * sock, struct sock_req * req, int blk)
{
debug_udp_print("socket num %ld", get_sock_num(sock));
@ -205,7 +200,7 @@ static void udp_op_read(struct socket * sock, message * m, int blk)
data = (struct udp_recv_data *) sock->recv_head->data;
ret = udp_do_receive(sock, m, (struct udp_pcb *) sock->pcb,
ret = udp_do_receive(sock, req, (struct udp_pcb *) sock->pcb,
data->pbuf, &data->ip, data->port);
if (ret > 0) {
@ -213,36 +208,37 @@ static void udp_op_read(struct socket * sock, message * m, int blk)
sock->recv_data_size -= data->pbuf->tot_len;
udp_recv_free(data);
}
sock_reply(sock, ret);
return ret;
} else if (!blk)
sock_reply(sock, EAGAIN);
return EAGAIN;
else {
/* store the message so we know how to reply */
sock->mess = *m;
sock->req = *req;
/* operation is being processes */
sock->flags |= SOCK_FLG_OP_PENDING;
debug_udp_print("no data to read, suspending\n");
return EDONTREPLY;
}
}
static int udp_op_send(struct socket * sock,
struct pbuf * pbuf,
message * m)
size_t size)
{
int err;
debug_udp_print("pbuf len %d\n", pbuf->len);
if ((err = udp_send(sock->pcb, pbuf)) == ERR_OK)
return m->COUNT;
return size;
else {
debug_udp_print("udp_send failed %d", err);
return EIO;
}
}
static int udp_op_sendto(struct socket * sock, struct pbuf * pbuf, message * m)
static int udp_op_sendto(struct socket * sock, struct pbuf * pbuf, size_t size)
{
int err;
udp_io_hdr_t hdr;
@ -256,47 +252,46 @@ static int udp_op_sendto(struct socket * sock, struct pbuf * pbuf, message * m)
if ((err = udp_sendto(sock->pcb, pbuf, (ip_addr_t *) &hdr.uih_dst_addr,
ntohs(hdr.uih_dst_port))) == ERR_OK)
return m->COUNT;
return size;
else {
debug_udp_print("udp_sendto failed %d", err);
return EIO;
}
}
static void udp_op_write(struct socket * sock, message * m, __unused int blk)
static int udp_op_write(struct socket * sock, struct sock_req * req,
__unused int blk)
{
int ret;
struct pbuf * pbuf;
debug_udp_print("socket num %ld data size %d",
get_sock_num(sock), m->COUNT);
debug_udp_print("socket num %ld data size %u",
get_sock_num(sock), req->size);
pbuf = pbuf_alloc(PBUF_TRANSPORT, m->COUNT, PBUF_POOL);
if (!pbuf) {
ret = ENOMEM;
goto write_err;
}
pbuf = pbuf_alloc(PBUF_TRANSPORT, req->size, PBUF_POOL);
if (!pbuf)
return ENOMEM;
if ((ret = copy_from_user(m->m_source, pbuf->payload, m->COUNT,
(cp_grant_id_t) m->IO_GRANT, 0)) != OK) {
if ((ret = copy_from_user(req->endpt, pbuf->payload, req->size,
req->grant, 0)) != OK) {
pbuf_free(pbuf);
goto write_err;
return ret;
}
if (sock->usr_flags & NWUO_RWDATONLY)
ret = udp_op_send(sock, pbuf, m);
ret = udp_op_send(sock, pbuf, req->size);
else
ret = udp_op_sendto(sock, pbuf, m);
ret = udp_op_sendto(sock, pbuf, req->size);
if (pbuf_free(pbuf) == 0) {
panic("We cannot buffer udp packets yet!");
}
write_err:
sock_reply(sock, ret);
return ret;
}
static void udp_set_opt(struct socket * sock, message * m)
static int udp_set_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_udpopt_t udpopt;
@ -305,11 +300,10 @@ static void udp_set_opt(struct socket * sock, message * m)
assert(pcb);
err = copy_from_user(m->m_source, &udpopt, sizeof(udpopt),
(cp_grant_id_t) m->IO_GRANT, 0);
err = copy_from_user(endpt, &udpopt, sizeof(udpopt), grant, 0);
if (err != OK)
sock_reply(sock, err);
return err;
debug_udp_print("udpopt.nwuo_flags = 0x%lx", udpopt.nwuo_flags);
debug_udp_print("udpopt.nwuo_remaddr = 0x%x",
@ -341,16 +335,15 @@ static void udp_set_opt(struct socket * sock, message * m)
if (sock->usr_flags & NWUO_LP_SEL)
udp_bind(pcb, &loc_ip, 0);
/* register a receive hook */
udp_recv((struct udp_pcb *) sock->pcb, udp_recv_callback, sock);
sock_reply(sock, OK);
return OK;
}
static void udp_get_opt(struct socket * sock, message * m)
static int udp_get_opt(struct socket * sock, endpoint_t endpt,
cp_grant_id_t grant)
{
int err;
nwio_udpopt_t udpopt;
struct udp_pcb * pcb = (struct udp_pcb *) sock->pcb;
@ -372,39 +365,32 @@ static void udp_get_opt(struct socket * sock, message * m)
debug_udp_print("udpopt.nwuo_locport = 0x%x",
ntohs(udpopt.nwuo_locport));
if ((unsigned int) m->COUNT < sizeof(udpopt)) {
sock_reply(sock, EINVAL);
return;
}
err = copy_to_user(m->m_source, &udpopt, sizeof(udpopt),
(cp_grant_id_t) m->IO_GRANT, 0);
if (err != OK)
sock_reply(sock, err);
sock_reply(sock, OK);
return copy_to_user(endpt, &udpopt, sizeof(udpopt), grant, 0);
}
static void udp_op_ioctl(struct socket * sock, message * m, __unused int blk)
static int udp_op_ioctl(struct socket * sock, struct sock_req * req,
__unused int blk)
{
debug_udp_print("socket num %ld req %c %d %d",
get_sock_num(sock),
(m->REQUEST >> 8) & 0xff,
m->REQUEST & 0xff,
(m->REQUEST >> 16) & _IOCPARM_MASK);
int r;
switch (m->REQUEST) {
debug_udp_print("socket num %ld req %c %ld %ld",
get_sock_num(sock),
(unsigned char) (req->req >> 8),
req->req & 0xff,
(req->req >> 16) & _IOCPARM_MASK);
switch (req->req) {
case NWIOSUDPOPT:
udp_set_opt(sock, m);
r = udp_set_opt(sock, req->endpt, req->grant);
break;
case NWIOGUDPOPT:
udp_get_opt(sock, m);
r = udp_get_opt(sock, req->endpt, req->grant);
break;
default:
sock_reply(sock, EBADIOCTL);
return;
r = ENOTTY;
}
return r;
}
struct sock_ops sock_udp_ops = {