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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2015-10-16 09:46:11 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2015-10-16 09:46:11 +0300
commit342fa5dfa053559f47caad657132522496dcf1b3 (patch)
tree0c5aec1a29aa36c0cb5272838435671af4279228 /qemu/hw/net
parentfdb8b20906f3546ba6c2f9f0686d8a5189516ba3 (diff)
These changes comes from the qemu version 2.4.0.1 bugfix release,
taken from the official qemu wiki page. No further changes included. Change-Id: I690a0aba6a986291252e766c60cf1fbea9a0cd46 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/hw/net')
-rw-r--r--qemu/hw/net/e1000.c3
-rw-r--r--qemu/hw/net/ne2000.c21
2 files changed, 18 insertions, 6 deletions
diff --git a/qemu/hw/net/e1000.c b/qemu/hw/net/e1000.c
index 5c6bcd001..09c9e9d53 100644
--- a/qemu/hw/net/e1000.c
+++ b/qemu/hw/net/e1000.c
@@ -740,7 +740,8 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp)
memmove(tp->data, tp->header, tp->hdr_len);
tp->size = tp->hdr_len;
}
- } while (split_size -= bytes);
+ split_size -= bytes;
+ } while (bytes && split_size);
} else if (!tp->tse && tp->cptse) {
// context descriptor TSE is not set, while data descriptor TSE is set
DBGOUT(TXERR, "TCP segmentation error\n");
diff --git a/qemu/hw/net/ne2000.c b/qemu/hw/net/ne2000.c
index 3492db366..2bdb4c927 100644
--- a/qemu/hw/net/ne2000.c
+++ b/qemu/hw/net/ne2000.c
@@ -230,6 +230,9 @@ ssize_t ne2000_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
}
index = s->curpag << 8;
+ if (index >= NE2000_PMEM_END) {
+ index = s->start;
+ }
/* 4 bytes for header */
total_len = size + 4;
/* address for next packet (4 bytes for CRC) */
@@ -253,7 +256,7 @@ ssize_t ne2000_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
if (index <= s->stop)
avail = s->stop - index;
else
- avail = 0;
+ break;
len = size;
if (len > avail)
len = avail;
@@ -315,13 +318,19 @@ static void ne2000_ioport_write(void *opaque, uint32_t addr, uint32_t val)
offset = addr | (page << 4);
switch(offset) {
case EN0_STARTPG:
- s->start = val << 8;
+ if (val << 8 <= NE2000_PMEM_END) {
+ s->start = val << 8;
+ }
break;
case EN0_STOPPG:
- s->stop = val << 8;
+ if (val << 8 <= NE2000_PMEM_END) {
+ s->stop = val << 8;
+ }
break;
case EN0_BOUNDARY:
- s->boundary = val;
+ if (val << 8 < NE2000_PMEM_END) {
+ s->boundary = val;
+ }
break;
case EN0_IMR:
s->imr = val;
@@ -362,7 +371,9 @@ static void ne2000_ioport_write(void *opaque, uint32_t addr, uint32_t val)
s->phys[offset - EN1_PHYS] = val;
break;
case EN1_CURPAG:
- s->curpag = val;
+ if (val << 8 < NE2000_PMEM_END) {
+ s->curpag = val;
+ }
break;
case EN1_MULT ... EN1_MULT + 7:
s->mult[offset - EN1_MULT] = val;