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Protect interface queue manipulations by splnet(). Splsoftnet() is not 

enough.
This commit is contained in:
martin 2001-06-18 12:32:47 +00:00
parent 79c6c68dcc
commit 91a63a0595
1 changed files with 17 additions and 9 deletions
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26
sys/net/if_pppoe.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: if_pppoe.c,v 1.2 2001/06/14 05:44:24 itojun Exp $ */
/* $NetBSD: if_pppoe.c,v 1.3 2001/06/18 12:32:47 martin Exp $ */
/*
* Copyright (c) 2001 Martin Husemann. All rights reserved.
@ -294,21 +294,29 @@ static void
pppoe_input()
{
struct mbuf *m;
int idle = 0;
int s, disc_done, data_done;
while (!idle) {
idle = 1;
if (!IF_IS_EMPTY(&ppoediscinq)) {
do {
disc_done = 0;
data_done = 0;
for (;;) {
s = splnet();
IF_DEQUEUE(&ppoediscinq, m);
idle = 0;
splx(s);
if (m == NULL) break;
disc_done = 1;
pppoe_disc_input(m);
}
if (!IF_IS_EMPTY(&ppoeinq)) {
for (;;) {
s = splnet();
IF_DEQUEUE(&ppoeinq, m);
idle = 0;
splx(s);
if (m == NULL) break;
data_done = 1;
pppoe_data_input(m);
}
}
} while (disc_done || data_done);
}
/* analyze and handle a single received packet while not in session state */