xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Kods Problēmas Izmaiņu pieprasījumi Darbības Pakotnes Projekti Laidieni Vikivietne Aktivitāte

l2tp: drop ->mru from struct l2tp_session

Pārlūkot izejas kodu 
This field is not used.

Treat PPPIOC*MRU the same way as PPPIOC*FLAGS: "get" requests return 0,
while "set" requests vadidate the user supplied pointer but discard its
value.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Šī revīzija ir iekļauta:
Guillaume Nault
2018-07-27 11:00:00 +02:00
revīziju iesūtīja David S. Miller
vecāks 1998b5ed9c
revīzija 92ea4a7eec
6 mainīti faili ar 9 papildinājumiem un 51 dzēšanām
Lejupielādēt ielāpa failu Lejupielādēt izmaiņu failu Izvērst visus failus Savērst visus failus

41
net/l2tp/l2tp_ppp.c
Parādīt failu

@@ -570,10 +570,9 @@ static void pppol2tp_session_init(struct l2tp_session *session)
if (dst) {
u32 pmtu = dst_mtu(dst);
if (pmtu) {
if (pmtu)
session->mtu = pmtu - PPPOL2TP_HEADER_OVERHEAD;
session->mru = pmtu - PPPOL2TP_HEADER_OVERHEAD;
}
dst_release(dst);
}
}
@@ -781,7 +780,6 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
} else {
/* Default MTU must allow space for UDP/L2TP/PPP headers */
cfg.mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
cfg.mru = cfg.mtu;
cfg.pw_type = L2TP_PWTYPE_PPP;
session = l2tp_session_create(sizeof(struct pppol2tp_session),
@@ -885,8 +883,6 @@ static int pppol2tp_session_create(struct net *net, struct l2tp_tunnel *tunnel,
/* Default MTU values. */
if (cfg->mtu == 0)
cfg->mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
if (cfg->mru == 0)
cfg->mru = cfg->mtu;
/* Allocate and initialize a new session context. */
session = l2tp_session_create(sizeof(struct pppol2tp_session),
@@ -1101,34 +1097,6 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
break;
case PPPIOCGMRU:
err = -ENXIO;
if (!(sk->sk_state & PPPOX_CONNECTED))
break;
err = -EFAULT;
if (put_user(session->mru, (int __user *) arg))
break;
l2tp_info(session, L2TP_MSG_CONTROL, "%s: get mru=%d\n",
session->name, session->mru);
err = 0;
break;
case PPPIOCSMRU:
err = -ENXIO;
if (!(sk->sk_state & PPPOX_CONNECTED))
break;
err = -EFAULT;
if (get_user(val, (int __user *) arg))
break;
session->mru = val;
l2tp_info(session, L2TP_MSG_CONTROL, "%s: set mru=%d\n",
session->name, session->mru);
err = 0;
break;
case PPPIOCGFLAGS:
err = -EFAULT;
if (put_user(0, (int __user *)arg))
@@ -1136,6 +1104,7 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
err = 0;
break;
case PPPIOCSMRU:
case PPPIOCSFLAGS:
err = -EFAULT;
if (get_user(val, (int __user *)arg))
@@ -1723,8 +1692,8 @@ static void pppol2tp_seq_session_show(struct seq_file *m, void *v)
tunnel->peer_tunnel_id,
session->peer_session_id,
state, user_data_ok);
seq_printf(m, " %d/%d/%c/%c/%s %08x %u\n",
session->mtu, session->mru,
seq_printf(m, " %d/0/%c/%c/%s %08x %u\n",
session->mtu,
session->recv_seq ? 'R' : '-',
session->send_seq ? 'S' : '-',
session->lns_mode ? "LNS" : "LAC",