[oe-commits] Mario Schuknecht : linux-libc-headers-2.6.24: add additional tcp ioctl ( for hipox machine only)
git version control
git at git.openembedded.org
Thu Jun 16 23:19:35 UTC 2011
Module: openembedded.git
Branch: 2011.03-maintenance
Commit: 35a4775c7331ab2e825ebe89b01cb0c7e85ddb0b
URL: http://git.openembedded.org/?p=openembedded.git&a=commit;h=35a4775c7331ab2e825ebe89b01cb0c7e85ddb0b
Author: Mario Schuknecht <schuknecht at dresearch-fe.de>
Date: Thu Oct 14 12:29:21 2010 +0000
linux-libc-headers-2.6.24: add additional tcp ioctl (for hipox machine only)
Signed-off-by: Mario Schuknecht <schuknecht at dresearch-fe.de>
Acked-by: Steffen Sledz <sledz at dresearch-fe.de>
---
.../hipox/siocoutqsnd.patch | 54 ++++++++++++++++++++
.../linux-libc-headers_2.6.24.bb | 4 ++
2 files changed, 58 insertions(+), 0 deletions(-)
diff --git a/recipes/linux-libc-headers/linux-libc-headers-2.6.24/hipox/siocoutqsnd.patch b/recipes/linux-libc-headers/linux-libc-headers-2.6.24/hipox/siocoutqsnd.patch
new file mode 100644
index 0000000..616a860
--- /dev/null
+++ b/recipes/linux-libc-headers/linux-libc-headers-2.6.24/hipox/siocoutqsnd.patch
@@ -0,0 +1,54 @@
+tcp: ioctl type SIOCOUTQNSD returns amount of data not sent
+
+In contrast to SIOCOUTQ which returns the amount of data sent
+but not yet acknowledged plus data not yet sent this patch only
+returns the data not sent.
+
+For various methods of live streaming bitrate control it may
+be helpful to know how much data are in the tcp outqueue are
+not sent yet.
+
+Signed-off-by: Mario Schuknecht <m.schuknecht at dresearch.de>
+
+diff -Nurd linux-2.6.24.orig//include/asm-arm/ioctls.h linux-2.6.24/include/asm-arm/ioctls.h
+--- linux-2.6.24.orig//include/asm-arm/ioctls.h 2010-10-08 09:03:02.000000000 +0200
++++ linux-2.6.24/include/asm-arm/ioctls.h 2010-10-08 09:09:55.000000000 +0200
+@@ -53,6 +53,8 @@
+ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */
+
++#define TIOCOUTQNSD 0x5437
++
+ #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */
+ #define FIOCLEX 0x5451
+ #define FIOASYNC 0x5452
+diff -Nurd linux-2.6.24.orig//include/linux/sockios.h linux-2.6.24/include/linux/sockios.h
+--- linux-2.6.24.orig//include/linux/sockios.h 2010-10-08 09:03:02.000000000 +0200
++++ linux-2.6.24/include/linux/sockios.h 2010-10-08 09:10:43.000000000 +0200
+@@ -23,6 +23,7 @@
+ /* Linux-specific socket ioctls */
+ #define SIOCINQ FIONREAD
+ #define SIOCOUTQ TIOCOUTQ
++#define SIOCOUTQNSD TIOCOUTQNSD
+
+ /* Routing table calls. */
+ #define SIOCADDRT 0x890B /* add routing table entry */
+diff -Nurd linux-2.6.24.orig//net/ipv4/tcp.c linux-2.6.24/net/ipv4/tcp.c
+--- linux-2.6.24.orig//net/ipv4/tcp.c 2010-10-08 09:02:59.000000000 +0200
++++ linux-2.6.24/net/ipv4/tcp.c 2010-10-08 09:10:43.000000000 +0200
+@@ -444,6 +444,15 @@
+ else
+ answ = tp->write_seq - tp->snd_una;
+ break;
++ case SIOCOUTQNSD:
++ if (sk->sk_state == TCP_LISTEN)
++ return -EINVAL;
++
++ if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
++ answ = 0;
++ else
++ answ = tp->write_seq - tp->snd_nxt;
++ break;
+ default:
+ return -ENOIOCTLCMD;
+ }
diff --git a/recipes/linux-libc-headers/linux-libc-headers_2.6.24.bb b/recipes/linux-libc-headers/linux-libc-headers_2.6.24.bb
index 9c683a7..148d03f 100644
--- a/recipes/linux-libc-headers/linux-libc-headers_2.6.24.bb
+++ b/recipes/linux-libc-headers/linux-libc-headers_2.6.24.bb
@@ -10,6 +10,10 @@ SRC_URI = "${KERNELORG_MIRROR}/pub/linux/kernel/v2.6/linux-${PV}.tar.bz2 \
file://make-3.82.patch \
file://unifdef.patch"
+SRC_URI_append_hipox = " \
+ file://siocoutqsnd.patch \
+ "
+
S = "${WORKDIR}/linux-${PV}"
do_configure() {
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