GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse source 
Conflicts:
	drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
	net/llc/af_llc.c
This commit is contained in:
David S. Miller 2010-12-08 13:15:38 -08:00
commit fe6c791570
84 changed files with 824 additions and 516 deletions
Download patch file Download diff file Expand all files Collapse all files

37
net/unix/af_unix.c
View file

@ -1344,9 +1344,25 @@ static void unix_destruct_scm(struct sk_buff *skb)
sock_wfree(skb);
}
#define MAX_RECURSION_LEVEL 4
static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
{
int i;
unsigned char max_level = 0;
int unix_sock_count = 0;
for (i = scm->fp->count - 1; i >= 0; i--) {
struct sock *sk = unix_get_socket(scm->fp->fp[i]);
if (sk) {
unix_sock_count++;
max_level = max(max_level,
unix_sk(sk)->recursion_level);
}
}
if (unlikely(max_level > MAX_RECURSION_LEVEL))
return -ETOOMANYREFS;
/*
* Need to duplicate file references for the sake of garbage
@ -1357,9 +1373,11 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
if (!UNIXCB(skb).fp)
return -ENOMEM;
for (i = scm->fp->count-1; i >= 0; i--)
unix_inflight(scm->fp->fp[i]);
return 0;
if (unix_sock_count) {
for (i = scm->fp->count - 1; i >= 0; i--)
unix_inflight(scm->fp->fp[i]);
}
return max_level;
}
static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)
@ -1394,6 +1412,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct sk_buff *skb;
long timeo;
struct scm_cookie tmp_scm;
int max_level;
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
@ -1432,8 +1451,9 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
goto out;
err = unix_scm_to_skb(siocb->scm, skb, true);
if (err)
if (err < 0)
goto out_free;
max_level = err + 1;
unix_get_secdata(siocb->scm, skb);
skb_reset_transport_header(skb);
@ -1515,6 +1535,8 @@ restart:
if (sock_flag(other, SOCK_RCVTSTAMP))
__net_timestamp(skb);
skb_queue_tail(&other->sk_receive_queue, skb);
if (max_level > unix_sk(other)->recursion_level)
unix_sk(other)->recursion_level = max_level;
unix_state_unlock(other);
other->sk_data_ready(other, len);
sock_put(other);
@ -1545,6 +1567,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
int sent = 0;
struct scm_cookie tmp_scm;
bool fds_sent = false;
int max_level;
if (NULL == siocb->scm)
siocb->scm = &tmp_scm;
@ -1608,10 +1631,11 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
/* Only send the fds in the first buffer */
err = unix_scm_to_skb(siocb->scm, skb, !fds_sent);
if (err) {
if (err < 0) {
kfree_skb(skb);
goto out_err;
}
max_level = err + 1;
fds_sent = true;
err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
@ -1627,6 +1651,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
goto pipe_err_free;
skb_queue_tail(&other->sk_receive_queue, skb);
if (max_level > unix_sk(other)->recursion_level)
unix_sk(other)->recursion_level = max_level;
unix_state_unlock(other);
other->sk_data_ready(other, size);
sent += size;
@ -1847,6 +1873,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
unix_state_lock(sk);
skb = skb_dequeue(&sk->sk_receive_queue);
if (skb == NULL) {
unix_sk(sk)->recursion_level = 0;
if (copied >= target)
goto unlock;