linux-kernel - [PATCH 1/2] LAPB: added 'delivered' interface

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1338478278-24732-1-git-send-email-slapin@ossfans.org>
Date:	Thu, 31 May 2012 11:31:17 -0400
From:	Sergey Lapin <slapin@...fans.org>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, linux-x25@...r.kernel.org,
	Sergey Lapin <slapin@...fans.org>
Subject: [PATCH 1/2] LAPB: added 'delivered' interface

When using LAPB API for non-X.25 work, it is often necessary
to know if/when data is delivered to third party using LAPB
interface (e.g over serial or other media).

Signed-off-by: Sergey Lapin <slapin@...fans.org>
---
 include/linux/lapb.h  |    1 +
 net/lapb/lapb_iface.c |    6 ++++++
 net/lapb/lapb_subr.c  |    1 +
 3 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/lapb.h b/include/linux/lapb.h
index 873c1eb..fd963be 100644
--- a/include/linux/lapb.h
+++ b/include/linux/lapb.h
@@ -30,6 +30,7 @@ struct lapb_register_struct {
 	void (*disconnect_indication)(struct net_device *dev, int reason);
 	int  (*data_indication)(struct net_device *dev, struct sk_buff *skb);
 	void (*data_transmit)(struct net_device *dev, struct sk_buff *skb);
+	void (*data_delivered)(struct net_device *dev, struct sk_buff *skb);
 };
 
 struct lapb_parms_struct {
diff --git a/net/lapb/lapb_iface.c b/net/lapb/lapb_iface.c
index 3cdaa04..0fe77ae 100644
--- a/net/lapb/lapb_iface.c
+++ b/net/lapb/lapb_iface.c
@@ -415,6 +415,12 @@ int lapb_data_transmit(struct lapb_cb *lapb, struct sk_buff *skb)
 	return used;
 }
 
+void lapb_data_delivered(struct lapb_cb *lapb, struct sk_buff *skb)
+{
+	if (lapb->callbacks->data_delivered)
+		lapb->callbacks->data_delivered(lapb->dev, skb);
+}
+
 EXPORT_SYMBOL(lapb_register);
 EXPORT_SYMBOL(lapb_unregister);
 EXPORT_SYMBOL(lapb_getparms);
diff --git a/net/lapb/lapb_subr.c b/net/lapb/lapb_subr.c
index 9d0a426..a44451d 100644
--- a/net/lapb/lapb_subr.c
+++ b/net/lapb/lapb_subr.c
@@ -61,6 +61,7 @@ void lapb_frames_acked(struct lapb_cb *lapb, unsigned short nr)
 	if (lapb->va != nr)
 		while (skb_peek(&lapb->ack_queue) && lapb->va != nr) {
 			skb = skb_dequeue(&lapb->ack_queue);
+			lapb_data_delivered(lapb, skb);
 			kfree_skb(skb);
 			lapb->va = (lapb->va + 1) % modulus;
 		}
-- 
1.7.5.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/