Displaying 20 results from an estimated 116 matches for "msg_iov".
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2010 Mar 03
1
[RFC][ PATCH 2/3] vhost-net: handle vnet_hdr processing for MRG_RX_BUF
...ead.iov_base = (void *)vhost_get_vq_desc(&net->dev, vq,
@@ -148,25 +146,45 @@
"out %d, int %d\n", out, in);
break;
}
+ if (vq->guest_hlen > vq->sock_hlen) {
+ if (msg.msg_iov[0].iov_len == vq->guest_hlen)
+ msg.msg_iov[0].iov_len = vq->sock_hlen;
+ else if (out == ARRAY_SIZE(vq->iov))
+ vq_err(vq, "handle_tx iov overflow!");
+ else {
+...
2010 Mar 03
1
[RFC][ PATCH 2/3] vhost-net: handle vnet_hdr processing for MRG_RX_BUF
...ead.iov_base = (void *)vhost_get_vq_desc(&net->dev, vq,
@@ -148,25 +146,45 @@
"out %d, int %d\n", out, in);
break;
}
+ if (vq->guest_hlen > vq->sock_hlen) {
+ if (msg.msg_iov[0].iov_len == vq->guest_hlen)
+ msg.msg_iov[0].iov_len = vq->sock_hlen;
+ else if (out == ARRAY_SIZE(vq->iov))
+ vq_err(vq, "handle_tx iov overflow!");
+ else {
+...
2010 Nov 29
1
[PATCH] vhost: fix typos in comment
...00644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -452,7 +452,7 @@ static void handle_rx_mergeable(struct vhost_net *net)
move_iovec_hdr(vq->iov, vq->hdr, vhost_hlen, in);
else
/* Copy the header for use in VIRTIO_NET_F_MRG_RXBUF:
- * needed because sendmsg can modify msg_iov. */
+ * needed because recvmsg can modify msg_iov. */
copy_iovec_hdr(vq->iov, vq->hdr, sock_hlen, in);
msg.msg_iovlen = in;
err = sock->ops->recvmsg(NULL, sock, &msg,
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 073d06a..2af44b7 100644
--- a/drivers/...
2010 Nov 29
1
[PATCH] vhost: fix typos in comment
...00644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -452,7 +452,7 @@ static void handle_rx_mergeable(struct vhost_net *net)
move_iovec_hdr(vq->iov, vq->hdr, vhost_hlen, in);
else
/* Copy the header for use in VIRTIO_NET_F_MRG_RXBUF:
- * needed because sendmsg can modify msg_iov. */
+ * needed because recvmsg can modify msg_iov. */
copy_iovec_hdr(vq->iov, vq->hdr, sock_hlen, in);
msg.msg_iovlen = in;
err = sock->ops->recvmsg(NULL, sock, &msg,
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 073d06a..2af44b7 100644
--- a/drivers/...
2006 May 23
11
how to debug RTNETLINK invalid argument?
Hey,
I am getting an invalid argument trying to insert a qdisc:
[root@emu-5 iproute2]# tc qdisc add dev eth0 root xcp capacity 50Mbit
limit 500
RTNETLINK answers: Invalid argument
I''m not sure whats wrong here, because i can successfully insert this
qdisc on other computers of mine.
How can i debug this?
Thanks!
George
2010 Apr 26
1
valgrind ipconfig work
.../usr/kinit/ipconfig/packet.c
+++ b/usr/kinit/ipconfig/packet.c
@@ -114,16 +114,18 @@ static char *ntoa(uint32_t addr)
int packet_send(struct netdev *dev, struct iovec *iov, int iov_len)
{
struct sockaddr_ll sll;
- struct msghdr msg = {
- .msg_name = &sll,
- .msg_namelen = sizeof(sll),
- .msg_iov = iov,
- .msg_iovlen = iov_len,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = 0
- };
int i, len = 0;
+ struct msghdr msg;
+
+ memset(&sll, 0, sizeof(sll));
+
+ msg.msg_name = &sll;
+ msg.msg_namelen = sizeof(sll);
+ msg.msg_iov = iov;
+ msg.msg_iovlen = iov_len;
+ msg.m...
2003 Mar 04
6
ip rule nat
when doing somehitng like
ip rule add fwmark 3 nat 200.42.75.183 table ppp0 prio 1
(the idea is that packets that match the fwmark 3 change their source
address to 200.42.75.183)..it first apply the nat and then routes to
table ppp0 right?
in such case the, nat, why may be nat not being applyed?
cause it doesnt work at all..it goes to that interface but does not nat
the src address of the package.
2008 Jan 28
1
Dovecot-auth crash
...= 0
23:56:00.392294 time(NULL) = 1201560960
23:56:00.392345 sendto(16,
"\24\0\0\0\26\0\1\3\200]\236G\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
23:56:00.392422 recvmsg(16, {msg_name(12)={sa_family=AF_NETLINK, pid=0,
groups=00000000},
msg_iov(1)=[{"0\0\0\0\24\0\2\0\200]\236G\300>\0\0\2\10\200\376\1\0\0"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 108
23:56:00.392516 recvmsg(16, {msg_name(12)={sa_family=AF_NETLINK, pid=0,
groups=00000000},
msg_iov(1)=[{"@\0\0\0\24\0\2\0\200]\236G\300>\0\0\n\200\200\376\1\0\0&...
2013 Nov 08
1
Rsync hanging, even with timeout and contimeout specified
...NET, SOCK_DGRAM|SOCK_NONBLOCK, IPPROTO_IP) = 3
connect(3, {sa_family=AF_INET, sin_port=htons(53),
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
gettimeofday({1383869704, 698589}, NULL) = 0
poll([{fd=3, events=POLLOUT}], 1, 0) = 1 ([{fd=3, revents=POLLOUT}])
sendmmsg(3, {{{msg_name(0)=NULL,
msg_iov(1)=[{"\250\317\1\0\0\1\0\0\0\0\0\0\6mirror\6aarnet\3edu\2a"...,
38}], msg_controllen=0, msg_flags=0}, 38}, {{msg_name(0)=NULL,
msg_iov(1)=[{"d\273\1\0\0\1\0\0\0\0\0\0\6mirror\6aarnet\3edu\2a"..., 38}],
msg_controllen=0, msg_flags=0}, 38}}, 2, MSG_NOSIGNAL) = 2
poll([{fd=3, event...
2015 Feb 11
2
Problems in SAMBA 3.3 to 4.0 migration
Hi, Rowland, and thanks for the reply.
The PDC OS is Slackware 13. The BDC OS is Slackware 14.
The choice to use Samba 4.0 was merely due to its inclusion on the Slackware
14 distro. I'll worry about upgrading that once I have the migration
complete.
I will post the two machine's respective smb.conf's later today.
--
View this message in context:
2015 Dec 10
2
[PATCH] Receive multiple packets at a time
..._t fromlen = sizeof(from[0]);
+#endif
+ int num = 1, i;
+
+#ifdef HAVE_RECVMMSG
+ for(i = 0; i < MAX_MSG; i++)
+ {
+ msg[i].msg_hdr.msg_name = &from[i].sa;
+ msg[i].msg_hdr.msg_namelen = sizeof(from[i]);
+ iov[i].iov_base = &pkt[i].seqno;
+ iov[i].iov_len = MAXSIZE;
+ msg[i].msg_hdr.msg_iov = &iov[i];
+ msg[i].msg_hdr.msg_iovlen = 1;
+ msg[i].msg_hdr.msg_control = NULL;
+ msg[i].msg_hdr.msg_controllen = 0;
+ }
+ num = recvmmsg(listen_socket[sock].udp, msg, MAX_MSG, MSG_DONTWAIT, NULL);
+#else
+ pkt[0].len = recvfrom(listen_socket[sock].udp, (char *) &pkt[0].seqno, MAXSIZE,...
2015 Feb 12
0
Problems in SAMBA 3.3 to 4.0 migration
...id=7687, groups=00000000}, [12]) = 0
time(NULL) = 1423709100
sendto(3, "\24\0\0\0\22\0\1\3\254\23\334T\0\0\0\0\0\0\0\0"..., 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\354\0\0\0\20\0\2\0\254\23\334T\7\36\0\0\0\0\4\3\1\0\0\0I\0\1\0\0\0\0\0\7"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 480
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"\24\0\0\0\3\0\2\0\254\23\334T\7\36\0\0\0\0\0\0\1\0\0\0I\0\1\0\0...
2015 Feb 12
2
Problems in SAMBA 3.3 to 4.0 migration
..., [12]) = 0
> time(NULL) = 1423709100
> sendto(3, "\24\0\0\0\22\0\1\3\254\23\334T\0\0\0\0\0\0\0\0"..., 20, 0,
> {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
> recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
> msg_iov(1)=[{"\354\0\0\0\20\0\2\0\254\23\334T\7\36\0\0\0\0\4\3\1\0\0\0I\0\1\0\0\0\0\0\7"...,
> 4096}], msg_controllen=0, msg_flags=0}, 0) = 480
> recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
> msg_iov(1)=[{"\24\0\0\0\3\0\2\0\254\23\334T\7\36\0\0\0\0\0\0\1...
2015 Jul 29
2
Bug#793921: tftpd-hpa: IPv6 address cannonization breaks IPv4
...> > results in the daemon attempting to use a socket with two address families and
> > fails:
> >
> > recvmsg(0, {msg_name(28)={sa_family=AF_INET6, sin6_port=htons(34500), inet_pton(AF_INET6, "::ffff:10.0.0.192", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, msg_iov(1)=[{"\0\1pxelinux.0\0netascii\0", 65468}], msg_controllen=40, {cmsg_len=36, cmsg_level=SOL_IPV6, cmsg_type=, ...}, msg_flags=0}, 0) = 22
> > [..]
> > [pid 3757] socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 0
> > [..]
> > [pid 3757] bind(0, {sa_family=AF_INET, sin_p...
2009 Mar 20
0
tftpd-hpa can't reopen /dev/log
...ng.
Cheers,
Feri.
$ sudo strace -f -p 2356
Process 2356 attached - interrupt to quit
select(5, [4], NULL, NULL, NULL) = 1 (in [4])
setsockopt(4, SOL_IP, IP_PKTINFO, [1], 4) = 0
recvmsg(4, {msg_name(16)={sa_family=AF_INET, sin_port=htons(57109), sin_addr=inet_addr("169.254.1.4")}, msg_iov(1)=[{"\0\1dal\0octet\0tsize\0000\0blksize\0001408\0"..., 65468}], msg_controllen=24, {cmsg_len=24, cmsg_level=SOL_IP, cmsg_type=, ...}, msg_flags=0}, 0) = 33
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 5
connect(5, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("169.254.1.1&...
2004 Nov 26
0
Dovecot 1.0-test52 and LDAP authentication
...16545] getsockname(1, <unfinished ...>
[pid 16547] <... select resumed> ) = 1 (in [5])
[pid 16545] <... getsockname resumed> 0xfef3d050, [28]) = -1 ENOTSOCK
(Socket operation on non-socket)
[pid 16547] read(5, <unfinished ...>
[pid 16545] sendmsg(3, {msg_name(0)=NULL,
msg_iov(1)=[{"\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
56}], msg_controllen=0, msg_flags=0}, 0 <unfinished ...>
[pid 16547] <... read resumed> "0\f\2\1\2e\7\n", 8) = 8
[pid 16545] <... sendmsg resumed> ) = -1 EPIPE (Broken pipe)
[pid 16547] read(...
2015 Dec 10
3
[PATCH] Receive multiple packets at a time
...AX_MSG; i++)
> {
> msg[i].msg_hdr.msg_name = &from[i].sa;
> msg[i].msg_hdr.msg_namelen = sizeof(from[i]);
> iov[i].iov_base = &pkt[i].seqno;
> iov[i].iov_len = MAXSIZE;
> msg[i].msg_hdr.msg_iov = &iov[i];
> msg[i].msg_hdr.msg_iovlen = 1;
> msg[i].msg_hdr.msg_control = NULL;
> msg[i].msg_hdr.msg_controllen = 0;
> }
Also, this is interesting. We should either reduce MAX_MSG to, say, 64,
or even 16, and/or initialize t...
2008 Aug 11
0
rsync failure with error 12
...pid=18279, groups=00000000}, [12]) = 0
time(NULL) = 1218454958
sendto(4, "\24\0\0\0\26\0\1\3\256%\240H\0\0\0\0\0\0\0\0", 20, 0,
{sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"0\0\0\0\24\0\2\0\256%\240HgG\0\0\2\10\200\376\1\0\0\0\10"...,
4096}], msg_controllen=0, msg_flags=0}, 0) = 212
recvmsg(4, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"@\0\0\0\24\0\2\0\256%\240HgG\0\0\n\200\200\376\1\0\0\0"...,
4096}], msg_...
2007 Jul 31
0
Operation failed: such conntrack doesn''t exist - when it does?
...ULL, 6632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0)
= 0xb7fdb000
mmap2(0xb7fdc000, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0) = 0xb7fdc000
close(4) = 0
sendmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"8\0\0\0\2\1\5\3\277(\257F\0\0\0\0\2\0\0\0$\0\1\200\24\0"...,
56}], msg_controllen=0, msg_flags=0}, 0) = 56
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000},
msg_iov(1)=[{"$\0\0\0\2\0\0\0\277(\257F\205\7\0\0\376\377\377\3778\0"...,
8192}], msg_cont...
2009 Sep 11
1
[PATCH] guestfish: Redirect stdout when executing remote commands
...ontrollen);
+ if (NULL == cmptr) {
+ perror ("malloc");
+ exit (1);
+ }
+ }
+
+ /* Don't specify a source */
+ msg.msg_name = NULL;
+ msg.msg_namelen = 0;
+
+ /* Initialise the msghdr to receive zero byte */
+ iov[0].iov_base = buf;
+ iov[0].iov_len = 1;
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+
+ /* Initialise the control data */
+ msg.msg_control = cmptr;
+ msg.msg_controllen = controllen;
+
+ /* Read a message from the socket */
+ ssize_t n = recvmsg (s, &msg, 0);
+ if (n < 0) {
+ perror ("recvmsg stdout fd");
+ exit...