/******************************************************************************
(c) 1995-1998 E.M. Serrat emserrat@geocities.com
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
GNU General Public License for more details.
*******************************************************************************/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/inet.h>
#include <linux/route.h>
#include <net/sock.h>
-#include <net/tcp.h>
+#include <net/tcp_states.h>
#include <asm/system.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
-#include <linux/termios.h>
+#include <linux/termios.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
if (decnet_log_martians && net_ratelimit()) {
char *devname = skb->dev ? skb->dev->name : "???";
struct dn_skb_cb *cb = DN_SKB_CB(skb);
- printk(KERN_INFO "DECnet: Martian packet (%s) dev=%s src=0x%04hx dst=0x%04hx srcport=0x%04hx dstport=0x%04hx\n", msg, devname, cb->src, cb->dst, cb->src_port, cb->dst_port);
+ printk(KERN_INFO "DECnet: Martian packet (%s) dev=%s src=0x%04hx dst=0x%04hx srcport=0x%04hx dstport=0x%04hx\n",
+ msg, devname, le16_to_cpu(cb->src), le16_to_cpu(cb->dst),
+ le16_to_cpu(cb->src_port), le16_to_cpu(cb->dst_port));
}
}
*/
static int dn_process_ack(struct sock *sk, struct sk_buff *skb, int oth)
{
- unsigned short *ptr = (unsigned short *)skb->data;
+ __le16 *ptr = (__le16 *)skb->data;
int len = 0;
unsigned short ack;
if (skb->len < 2)
return len;
- if ((ack = dn_ntohs(*ptr)) & 0x8000) {
+ if ((ack = le16_to_cpu(*ptr)) & 0x8000) {
skb_pull(skb, 2);
ptr++;
len += 2;
if ((ack & 0x4000) == 0) {
- if (oth)
+ if (oth)
ack ^= 0x2000;
dn_ack(sk, skb, ack);
}
if (skb->len < 2)
return len;
- if ((ack = dn_ntohs(*ptr)) & 0x8000) {
+ if ((ack = le16_to_cpu(*ptr)) & 0x8000) {
skb_pull(skb, 2);
len += 2;
if ((ack & 0x4000) == 0) {
- if (oth)
+ if (oth)
ack ^= 0x2000;
dn_ack(sk, skb, ack);
}
cb->dst_port = msg->dstaddr;
cb->services = msg->services;
cb->info = msg->info;
- cb->segsize = dn_ntohs(msg->segsize);
+ cb->segsize = le16_to_cpu(msg->segsize);
if (!pskb_may_pull(skb, sizeof(*msg)))
goto err_out;
ptr = skb->data;
cb->services = *ptr++;
cb->info = *ptr++;
- cb->segsize = dn_ntohs(*(__u16 *)ptr);
+ cb->segsize = le16_to_cpu(*(__le16 *)ptr);
if ((scp->state == DN_CI) || (scp->state == DN_CD)) {
scp->persist = 0;
- scp->addrrem = cb->src_port;
- sk->sk_state = TCP_ESTABLISHED;
- scp->state = DN_RUN;
+ scp->addrrem = cb->src_port;
+ sk->sk_state = TCP_ESTABLISHED;
+ scp->state = DN_RUN;
scp->services_rem = cb->services;
scp->info_rem = cb->info;
scp->segsize_rem = cb->segsize;
scp->max_window = decnet_no_fc_max_cwnd;
if (skb->len > 0) {
- unsigned char dlen = *skb->data;
+ u16 dlen = *skb->data;
if ((dlen <= 16) && (dlen <= skb->len)) {
- scp->conndata_in.opt_optl = dlen;
- memcpy(scp->conndata_in.opt_data, skb->data + 1, dlen);
+ scp->conndata_in.opt_optl = cpu_to_le16(dlen);
+ skb_copy_from_linear_data_offset(skb, 1,
+ scp->conndata_in.opt_data, dlen);
}
}
- dn_nsp_send_link(sk, DN_NOCHANGE, 0);
- if (!sock_flag(sk, SOCK_DEAD))
- sk->sk_state_change(sk);
- }
+ dn_nsp_send_link(sk, DN_NOCHANGE, 0);
+ if (!sock_flag(sk, SOCK_DEAD))
+ sk->sk_state_change(sk);
+ }
out:
- kfree_skb(skb);
+ kfree_skb(skb);
}
static void dn_nsp_conn_ack(struct sock *sk, struct sk_buff *skb)
if (skb->len < 2)
goto out;
- reason = dn_ntohs(*(__u16 *)skb->data);
+ reason = le16_to_cpu(*(__le16 *)skb->data);
skb_pull(skb, 2);
- scp->discdata_in.opt_status = reason;
+ scp->discdata_in.opt_status = cpu_to_le16(reason);
scp->discdata_in.opt_optl = 0;
memset(scp->discdata_in.opt_data, 0, 16);
if (skb->len > 0) {
- unsigned char dlen = *skb->data;
+ u16 dlen = *skb->data;
if ((dlen <= 16) && (dlen <= skb->len)) {
- scp->discdata_in.opt_optl = dlen;
- memcpy(scp->discdata_in.opt_data, skb->data + 1, dlen);
+ scp->discdata_in.opt_optl = cpu_to_le16(dlen);
+ skb_copy_from_linear_data_offset(skb, 1, scp->discdata_in.opt_data, dlen);
}
}
sk->sk_state_change(sk);
}
- /*
+ /*
* It appears that its possible for remote machines to send disc
* init messages with no port identifier if we are in the CI and
* possibly also the CD state. Obviously we shouldn't reply with
if (skb->len != 2)
goto out;
- reason = dn_ntohs(*(__u16 *)skb->data);
+ reason = le16_to_cpu(*(__le16 *)skb->data);
sk->sk_state = TCP_CLOSE;
if (skb->len != 4)
goto out;
- segnum = dn_ntohs(*(__u16 *)ptr);
+ segnum = le16_to_cpu(*(__le16 *)ptr);
ptr += 2;
lsflags = *(unsigned char *)ptr++;
fcval = *ptr;
/*
* Here we ignore erronous packets which should really
- * should cause a connection abort. It is not critical
+ * should cause a connection abort. It is not critical
* for now though.
*/
if (lsflags & 0xf8)
switch(lsflags & 0x04) { /* FCVAL INT */
case 0x00: /* Normal Request */
switch(lsflags & 0x03) { /* FCVAL MOD */
- case 0x00: /* Request count */
+ case 0x00: /* Request count */
if (fcval < 0) {
unsigned char p_fcval = -fcval;
if ((scp->flowrem_dat > p_fcval) &&
scp->flowrem_dat += fcval;
wake_up = 1;
}
- break;
+ break;
case 0x01: /* Stop outgoing data */
scp->flowrem_sw = DN_DONTSEND;
break;
wake_up = 1;
}
break;
- }
+ }
if (wake_up && !sock_flag(sk, SOCK_DEAD))
sk->sk_state_change(sk);
- }
+ }
dn_nsp_send_oth_ack(sk);
static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig, struct sk_buff_head *queue)
{
int err;
-
- /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
- number of warnings when compiling with -W --ANK
- */
- if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
+ int skb_len;
+
+ /* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
+ number of warnings when compiling with -W --ANK
+ */
+ if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
(unsigned)sk->sk_rcvbuf) {
- err = -ENOMEM;
- goto out;
- }
+ err = -ENOMEM;
+ goto out;
+ }
- err = sk_filter(sk, skb, 0);
+ err = sk_filter(sk, skb);
if (err)
goto out;
- skb_set_owner_r(skb, sk);
- skb_queue_tail(queue, skb);
+ skb_len = skb->len;
+ skb_set_owner_r(skb, sk);
+ skb_queue_tail(queue, skb);
- /* This code only runs from BH or BH protected context.
- * Therefore the plain read_lock is ok here. -DaveM
- */
- read_lock(&sk->sk_callback_lock);
- if (!sock_flag(sk, SOCK_DEAD)) {
- struct socket *sock = sk->sk_socket;
- wake_up_interruptible(sk->sk_sleep);
- if (sock && sock->fasync_list &&
- !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
- __kill_fasync(sock->fasync_list, sig,
- (sig == SIGURG) ? POLL_PRI : POLL_IN);
- }
- read_unlock(&sk->sk_callback_lock);
+ if (!sock_flag(sk, SOCK_DEAD))
+ sk->sk_data_ready(sk, skb_len);
out:
- return err;
+ return err;
}
static void dn_nsp_otherdata(struct sock *sk, struct sk_buff *skb)
if (skb->len < 2)
goto out;
- cb->segnum = segnum = dn_ntohs(*(__u16 *)skb->data);
+ cb->segnum = segnum = le16_to_cpu(*(__le16 *)skb->data);
skb_pull(skb, 2);
if (seq_next(scp->numoth_rcv, segnum)) {
if (skb->len < 2)
goto out;
- cb->segnum = segnum = dn_ntohs(*(__u16 *)skb->data);
+ cb->segnum = segnum = le16_to_cpu(*(__le16 *)skb->data);
skb_pull(skb, 2);
if (seq_next(scp->numdat_rcv, segnum)) {
- if (dn_queue_skb(sk, skb, SIGIO, &sk->sk_receive_queue) == 0) {
+ if (dn_queue_skb(sk, skb, SIGIO, &sk->sk_receive_queue) == 0) {
seq_add(&scp->numdat_rcv, 1);
- queued = 1;
- }
+ queued = 1;
+ }
if ((scp->flowloc_sw == DN_SEND) && dn_congested(sk)) {
scp->flowloc_sw = DN_DONTSEND;
dn_nsp_send_link(sk, DN_DONTSEND, 0);
}
- }
+ }
dn_nsp_send_data_ack(sk);
out:
if (!pskb_may_pull(skb, 2))
goto free_out;
- skb->h.raw = skb->data;
+ skb_reset_transport_header(skb);
cb->nsp_flags = *ptr++;
if (decnet_debug_level & 2)
printk(KERN_DEBUG "dn_nsp_rx: Message type 0x%02x\n", (int)cb->nsp_flags);
- if (cb->nsp_flags & 0x83)
+ if (cb->nsp_flags & 0x83)
goto free_out;
/*
/*
* Grab the destination address.
*/
- cb->dst_port = *(unsigned short *)ptr;
+ cb->dst_port = *(__le16 *)ptr;
cb->src_port = 0;
ptr += 2;
* If not a connack, grab the source address too.
*/
if (pskb_may_pull(skb, 5)) {
- cb->src_port = *(unsigned short *)ptr;
+ cb->src_port = *(__le16 *)ptr;
ptr += 2;
skb_pull(skb, 5);
}
* Swap src & dst and look up in the normal way.
*/
if (unlikely(cb->rt_flags & DN_RT_F_RTS)) {
- unsigned short tmp = cb->dst_port;
+ __le16 tmp = cb->dst_port;
cb->dst_port = cb->src_port;
cb->src_port = tmp;
tmp = cb->dst;
got_it:
if (sk != NULL) {
struct dn_scp *scp = DN_SK(sk);
- int ret;
/* Reset backoff */
scp->nsp_rxtshift = 0;
* We linearize everything except data segments here.
*/
if (cb->nsp_flags & ~0x60) {
- if (unlikely(skb_is_nonlinear(skb)) &&
- skb_linearize(skb, GFP_ATOMIC) != 0)
+ if (unlikely(skb_linearize(skb)))
goto free_out;
}
- bh_lock_sock(sk);
- ret = NET_RX_SUCCESS;
- if (decnet_debug_level & 8)
- printk(KERN_DEBUG "NSP: 0x%02x 0x%02x 0x%04x 0x%04x %d\n",
- (int)cb->rt_flags, (int)cb->nsp_flags,
- (int)cb->src_port, (int)cb->dst_port,
- !!sock_owned_by_user(sk));
- if (!sock_owned_by_user(sk))
- ret = dn_nsp_backlog_rcv(sk, skb);
- else
- sk_add_backlog(sk, skb);
- bh_unlock_sock(sk);
- sock_put(sk);
-
- return ret;
+ return sk_receive_skb(sk, skb, 0);
}
return dn_nsp_no_socket(skb, reason);
case 0x30:
dn_nsp_disc_init(sk, skb);
break;
- case 0x40:
+ case 0x40:
dn_nsp_disc_conf(sk, skb);
break;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff