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path: root/net/decnet/dn_nsp_in.c
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Diffstat (limited to 'net/decnet/dn_nsp_in.c')
-rw-r--r--net/decnet/dn_nsp_in.c215
1 files changed, 106 insertions, 109 deletions
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index 5d8a2a56fd3..fe5f01485d3 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -57,9 +57,9 @@
#include <linux/netdevice.h>
#include <linux/inet.h>
#include <linux/route.h>
+#include <linux/slab.h>
#include <net/sock.h>
#include <net/tcp_states.h>
-#include <asm/system.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/termios.h>
@@ -80,12 +80,15 @@ extern int decnet_log_martians;
static void dn_log_martian(struct sk_buff *skb, const char *msg)
{
- if (decnet_log_martians && net_ratelimit()) {
+ if (decnet_log_martians) {
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, le16_to_cpu(cb->src), le16_to_cpu(cb->dst),
- le16_to_cpu(cb->src_port), le16_to_cpu(cb->dst_port));
+ net_info_ratelimited("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));
}
}
@@ -100,23 +103,27 @@ static void dn_ack(struct sock *sk, struct sk_buff *skb, unsigned short ack)
unsigned short type = ((ack >> 12) & 0x0003);
int wakeup = 0;
- switch(type) {
- case 0: /* ACK - Data */
- if (dn_after(ack, scp->ackrcv_dat)) {
- scp->ackrcv_dat = ack & 0x0fff;
- wakeup |= dn_nsp_check_xmit_queue(sk, skb, &scp->data_xmit_queue, ack);
- }
- break;
- case 1: /* NAK - Data */
- break;
- case 2: /* ACK - OtherData */
- if (dn_after(ack, scp->ackrcv_oth)) {
- scp->ackrcv_oth = ack & 0x0fff;
- wakeup |= dn_nsp_check_xmit_queue(sk, skb, &scp->other_xmit_queue, ack);
- }
- break;
- case 3: /* NAK - OtherData */
- break;
+ switch (type) {
+ case 0: /* ACK - Data */
+ if (dn_after(ack, scp->ackrcv_dat)) {
+ scp->ackrcv_dat = ack & 0x0fff;
+ wakeup |= dn_nsp_check_xmit_queue(sk, skb,
+ &scp->data_xmit_queue,
+ ack);
+ }
+ break;
+ case 1: /* NAK - Data */
+ break;
+ case 2: /* ACK - OtherData */
+ if (dn_after(ack, scp->ackrcv_oth)) {
+ scp->ackrcv_oth = ack & 0x0fff;
+ wakeup |= dn_nsp_check_xmit_queue(sk, skb,
+ &scp->other_xmit_queue,
+ ack);
+ }
+ break;
+ case 3: /* NAK - OtherData */
+ break;
}
if (wakeup && !sock_flag(sk, SOCK_DEAD))
@@ -416,19 +423,19 @@ static void dn_nsp_disc_init(struct sock *sk, struct sk_buff *skb)
scp->addrrem = cb->src_port;
sk->sk_state = TCP_CLOSE;
- switch(scp->state) {
- case DN_CI:
- case DN_CD:
- scp->state = DN_RJ;
- sk->sk_err = ECONNREFUSED;
- break;
- case DN_RUN:
- sk->sk_shutdown |= SHUTDOWN_MASK;
- scp->state = DN_DN;
- break;
- case DN_DI:
- scp->state = DN_DIC;
- break;
+ switch (scp->state) {
+ case DN_CI:
+ case DN_CD:
+ scp->state = DN_RJ;
+ sk->sk_err = ECONNREFUSED;
+ break;
+ case DN_RUN:
+ sk->sk_shutdown |= SHUTDOWN_MASK;
+ scp->state = DN_DN;
+ break;
+ case DN_DI:
+ scp->state = DN_DIC;
+ break;
}
if (!sock_flag(sk, SOCK_DEAD)) {
@@ -469,23 +476,23 @@ static void dn_nsp_disc_conf(struct sock *sk, struct sk_buff *skb)
sk->sk_state = TCP_CLOSE;
- switch(scp->state) {
- case DN_CI:
- scp->state = DN_NR;
- break;
- case DN_DR:
- if (reason == NSP_REASON_DC)
- scp->state = DN_DRC;
- if (reason == NSP_REASON_NL)
- scp->state = DN_CN;
- break;
- case DN_DI:
- scp->state = DN_DIC;
- break;
- case DN_RUN:
- sk->sk_shutdown |= SHUTDOWN_MASK;
- case DN_CC:
+ switch (scp->state) {
+ case DN_CI:
+ scp->state = DN_NR;
+ break;
+ case DN_DR:
+ if (reason == NSP_REASON_DC)
+ scp->state = DN_DRC;
+ if (reason == NSP_REASON_NL)
scp->state = DN_CN;
+ break;
+ case DN_DI:
+ scp->state = DN_DIC;
+ break;
+ case DN_RUN:
+ sk->sk_shutdown |= SHUTDOWN_MASK;
+ case DN_CC:
+ scp->state = DN_CN;
}
if (!sock_flag(sk, SOCK_DEAD)) {
@@ -583,7 +590,7 @@ static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig
number of warnings when compiling with -W --ANK
*/
if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
- (unsigned)sk->sk_rcvbuf) {
+ (unsigned int)sk->sk_rcvbuf) {
err = -ENOMEM;
goto out;
}
@@ -595,19 +602,8 @@ static __inline__ int dn_queue_skb(struct sock *sk, struct sk_buff *skb, int sig
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);
out:
return err;
}
@@ -700,16 +696,16 @@ static int dn_nsp_no_socket(struct sk_buff *skb, unsigned short reason)
goto out;
if ((reason != NSP_REASON_OK) && ((cb->nsp_flags & 0x0c) == 0x08)) {
- switch(cb->nsp_flags & 0x70) {
- case 0x10:
- case 0x60: /* (Retransmitted) Connect Init */
- dn_nsp_return_disc(skb, NSP_DISCINIT, reason);
- ret = NET_RX_SUCCESS;
- break;
- case 0x20: /* Connect Confirm */
- dn_nsp_return_disc(skb, NSP_DISCCONF, reason);
- ret = NET_RX_SUCCESS;
- break;
+ switch (cb->nsp_flags & 0x70) {
+ case 0x10:
+ case 0x60: /* (Retransmitted) Connect Init */
+ dn_nsp_return_disc(skb, NSP_DISCINIT, reason);
+ ret = NET_RX_SUCCESS;
+ break;
+ case 0x20: /* Connect Confirm */
+ dn_nsp_return_disc(skb, NSP_DISCCONF, reason);
+ ret = NET_RX_SUCCESS;
+ break;
}
}
@@ -741,17 +737,17 @@ static int dn_nsp_rx_packet(struct sk_buff *skb)
* Filter out conninits and useless packet types
*/
if ((cb->nsp_flags & 0x0c) == 0x08) {
- switch(cb->nsp_flags & 0x70) {
- case 0x00: /* NOP */
- case 0x70: /* Reserved */
- case 0x50: /* Reserved, Phase II node init */
+ switch (cb->nsp_flags & 0x70) {
+ case 0x00: /* NOP */
+ case 0x70: /* Reserved */
+ case 0x50: /* Reserved, Phase II node init */
+ goto free_out;
+ case 0x10:
+ case 0x60:
+ if (unlikely(cb->rt_flags & DN_RT_F_RTS))
goto free_out;
- case 0x10:
- case 0x60:
- if (unlikely(cb->rt_flags & DN_RT_F_RTS))
- goto free_out;
- sk = dn_find_listener(skb, &reason);
- goto got_it;
+ sk = dn_find_listener(skb, &reason);
+ goto got_it;
}
}
@@ -818,7 +814,8 @@ free_out:
int dn_nsp_rx(struct sk_buff *skb)
{
- return NF_HOOK(PF_DECnet, NF_DN_LOCAL_IN, skb, skb->dev, NULL, dn_nsp_rx_packet);
+ return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, skb, skb->dev, NULL,
+ dn_nsp_rx_packet);
}
/*
@@ -843,20 +840,20 @@ int dn_nsp_backlog_rcv(struct sock *sk, struct sk_buff *skb)
* Control packet.
*/
if ((cb->nsp_flags & 0x0c) == 0x08) {
- switch(cb->nsp_flags & 0x70) {
- case 0x10:
- case 0x60:
- dn_nsp_conn_init(sk, skb);
- break;
- case 0x20:
- dn_nsp_conn_conf(sk, skb);
- break;
- case 0x30:
- dn_nsp_disc_init(sk, skb);
- break;
- case 0x40:
- dn_nsp_disc_conf(sk, skb);
- break;
+ switch (cb->nsp_flags & 0x70) {
+ case 0x10:
+ case 0x60:
+ dn_nsp_conn_init(sk, skb);
+ break;
+ case 0x20:
+ dn_nsp_conn_conf(sk, skb);
+ break;
+ case 0x30:
+ dn_nsp_disc_init(sk, skb);
+ break;
+ case 0x40:
+ dn_nsp_disc_conf(sk, skb);
+ break;
}
} else if (cb->nsp_flags == 0x24) {
@@ -897,15 +894,15 @@ int dn_nsp_backlog_rcv(struct sock *sk, struct sk_buff *skb)
if (scp->state != DN_RUN)
goto free_out;
- switch(cb->nsp_flags) {
- case 0x10: /* LS */
- dn_nsp_linkservice(sk, skb);
- break;
- case 0x30: /* OD */
- dn_nsp_otherdata(sk, skb);
- break;
- default:
- dn_nsp_data(sk, skb);
+ switch (cb->nsp_flags) {
+ case 0x10: /* LS */
+ dn_nsp_linkservice(sk, skb);
+ break;
+ case 0x30: /* OD */
+ dn_nsp_otherdata(sk, skb);
+ break;
+ default:
+ dn_nsp_data(sk, skb);
}
} else { /* Ack, chuck it out here */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:43:27 +0000