On Sun, Feb 03, 2002 at 12:33:59AM +0100, Krzysztof Halasa wrote:
> Hi,
>
> The attached file updates Linux 2.5.3 generic HDLC, please apply.
>
> The patch includes:
> - new SIOCDEVICE ioctl for setting all protocol and hardware parameters
> of (HDLC) network devices, instead of using PRIVATE netdev ioctls
> (details in hdlc.h and respective hdlc_*.c and/or N2 + C101 drivers)
> - the HDLC code is now split into hdlc_generic.c, hdlc_fr.c,
> hdlc_cisco.c etc. files,
> - all protocol parameters (timeouts etc.) are (should/aim) now configurable
> via SIOCDEVICE ioctl,
Linus,
Please revert, or do not apply, this patch.
ftp://ftp.pm.waw.pl/pub/linux/hdlc/experimental/hdlc-2.5.3.patch.gz
It adds undiscussed networking changed which I very much doubt DaveM
would approve of, and I do not approve of: SIOCDEVICE is far too
generic for inclusion, and it adds a structure for passing untyped
data which is very definitely non-portable.
Jeff
> It adds undiscussed networking changed which I very much doubt DaveM
> would approve of, and I do not approve of: SIOCDEVICE is far too
> generic for inclusion, and it adds a structure for passing untyped
> data which is very definitely non-portable.
You need a very generic structure for WAN interfaces because they have
ridiculously large numbers of configurable options. These changes were
discussed over a year ago.
I agree with the comment about untyped data. That does want to be cleaned
up a chunk more.
On Sun, Feb 03, 2002 at 12:46:28AM +0000, Alan Cox wrote:
> > It adds undiscussed networking changed which I very much doubt DaveM
> > would approve of, and I do not approve of: SIOCDEVICE is far too
> > generic for inclusion, and it adds a structure for passing untyped
> > data which is very definitely non-portable.
>
> You need a very generic structure for WAN interfaces because they have
> ridiculously large numbers of configurable options. These changes were
> discussed over a year ago.
>
> I agree with the comment about untyped data. That does want to be cleaned
> up a chunk more.
Ok... SIOC[GS]WANDEVICE or somesuch?
It could be made more portable and still say generic, IMHO.
Jeff
Jeff Garzik <[email protected]> :
[...]
> Ok... SIOC[GS]WANDEVICE or somesuch?
> It could be made more portable and still say generic, IMHO.
Try #1 on top of Krzysztof's patch:
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_cisco.c linux-2.5.3/drivers/net/wan/hdlc_cisco.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_cisco.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_cisco.c Sun Feb 3 16:31:05 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
#define CISCO_MULTICAST 0x8F /* Cisco multicast address */
@@ -254,14 +255,9 @@ int hdlc_cisco_ioctl(hdlc_device *hdlc,
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_CISCO;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
+ if (copy_to_user(&ifr->ifr_settings.ifs_hdlc.hdlcs_cisco,
&hdlc->state.cisco.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_CISCO:
@@ -271,11 +267,8 @@ int hdlc_cisco_ioctl(hdlc_device *hdlc,
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
if (copy_from_user(&hdlc->state.cisco.settings,
- ifr->ifr_settings.data, size))
+ &ifr->ifr_settings.ifs_hdlc.hdlcs_cisco, size))
return -EFAULT;
/* FIXME - put sanity checks here */
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_fr.c linux-2.5.3/drivers/net/wan/hdlc_fr.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_fr.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_fr.c Sun Feb 3 17:18:15 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
__inline__ pvc_device* find_pvc(hdlc_device *hdlc, u16 dlci)
@@ -784,14 +785,9 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_FR;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
+ if (copy_to_user(&ifr->ifr_settings.ifs_hdlc.hdlcs_fr,
&hdlc->state.fr.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_FR:
@@ -801,11 +797,8 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
if (copy_from_user(&hdlc->state.fr.settings,
- ifr->ifr_settings.data, size))
+ &ifr->ifr_settings.ifs_hdlc.hdlcs_fr, size))
return -EFAULT;
/* FIXME - put sanity checks here */
@@ -839,7 +832,8 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
if(!capable(CAP_NET_ADMIN))
return -EPERM;
- if (copy_from_user(&pvc, ifr->ifr_settings.data,
+ if (copy_from_user(&pvc,
+ &ifr->ifr_settings.ifs_hdlc.hdlcs_pvc,
sizeof(fr_proto_pvc)))
return -EFAULT;
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_ppp.c linux-2.5.3/drivers/net/wan/hdlc_ppp.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_ppp.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_ppp.c Sun Feb 3 16:52:30 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
static int ppp_open(hdlc_device *hdlc)
@@ -85,7 +86,6 @@ int hdlc_ppp_ioctl(hdlc_device *hdlc, st
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_PPP;
- ifr->ifr_settings.data_length = 0;
return 0; /* return protocol only, no settable parameters */
case IF_PROTO_PPP:
@@ -95,8 +95,7 @@ int hdlc_ppp_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != 0)
- return -EINVAL; /* no settable parameters */
+ /* no settable parameters */
hdlc_detach(hdlc);
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_raw.c linux-2.5.3/drivers/net/wan/hdlc_raw.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_raw.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_raw.c Sun Feb 3 17:20:12 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
static void raw_rx(struct sk_buff *skb)
@@ -37,21 +38,16 @@ static void raw_rx(struct sk_buff *skb)
int hdlc_raw_ioctl(hdlc_device *hdlc, struct ifreq *ifr)
{
- const size_t size = sizeof(hdlc_proto);
+ const size_t size = sizeof(raw_proto);
struct net_device *dev = hdlc_to_dev(hdlc);
int result;
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_HDLC;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &hdlc->state.hdlc.settings, size))
+ if (copy_to_user(&ifr->ifr_settings.ifs_hdlc.hdlcs_raw,
+ &hdlc->state.raw.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_HDLC:
@@ -61,18 +57,16 @@ int hdlc_raw_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&hdlc->state.hdlc.settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&hdlc->state.raw.settings,
+ &ifr->ifr_settings.ifs_hdlc.hdlcs_raw, size))
return -EFAULT;
+
/* FIXME - put sanity checks here */
hdlc_detach(hdlc);
- result=hdlc->attach(hdlc, hdlc->state.hdlc.settings.encoding,
- hdlc->state.hdlc.settings.parity);
+ result=hdlc->attach(hdlc, hdlc->state.raw.settings.encoding,
+ hdlc->state.raw.settings.parity);
if (result) {
hdlc->proto = -1;
return result;
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_x25.c linux-2.5.3/drivers/net/wan/hdlc_x25.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_x25.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_x25.c Sun Feb 3 16:31:35 2002
@@ -25,6 +25,8 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
+
/* These functions are callbacks called by LAPB layer */
@@ -187,7 +189,6 @@ int hdlc_x25_ioctl(hdlc_device *hdlc, st
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_X25;
- ifr->ifr_settings.data_length = 0;
return 0; /* return protocol only, no settable parameters */
case IF_PROTO_X25:
@@ -196,9 +197,6 @@ int hdlc_x25_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
-
- if (ifr->ifr_settings.data_length != 0)
- return -EINVAL; /* no settable parameters */
hdlc_detach(hdlc);
diff -burpN linux-2.5.3-kh/include/linux/hdlc/ioctl.h linux-2.5.3/include/linux/hdlc/ioctl.h
--- linux-2.5.3-kh/include/linux/hdlc/ioctl.h Thu Jan 1 01:00:00 1970
+++ linux-2.5.3/include/linux/hdlc/ioctl.h Sun Feb 3 16:51:31 2002
@@ -0,0 +1,44 @@
+#ifndef __HDLC_IOCTL_H__
+#define __HDLC_IOCTL_H__
+
+typedef struct {
+ unsigned short encoding;
+ unsigned short parity;
+} raw_proto;
+
+typedef struct {
+ unsigned int t391;
+ unsigned int t392;
+ unsigned int n391;
+ unsigned int n392;
+ unsigned int n393;
+ unsigned short lmi;
+ unsigned short dce; /* 1 for DCE (network side) operation */
+} fr_proto;
+
+typedef struct {
+ unsigned int dlci;
+} fr_proto_pvc; /* for creating/deleting FR PVCs */
+
+typedef struct {
+ unsigned int interval;
+ unsigned int timeout;
+} cisco_proto;
+
+/* PPP doesn't need any info now - supply length = 0 to ioctl */
+
+struct hdlc_settings {
+ union {
+ raw_proto raw;
+ cisco_proto cisco;
+ fr_proto fr;
+ fr_proto_pvc fr_pvc;
+ } hdlcs_hdlcu;
+};
+
+#define hdlcs_raw hdlcs_hdlcu.raw
+#define hdlcs_cisco hdlcs_hdlcu.cisco
+#define hdlcs_fr hdlcs_hdlcu.fr
+#define hdlcs_pvc hdlcs_hdlcu.fr_pvc
+
+#endif /* __HDLC_IOCTL_H__ */
diff -burpN linux-2.5.3-kh/include/linux/hdlc.h linux-2.5.3/include/linux/hdlc.h
--- linux-2.5.3-kh/include/linux/hdlc.h Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/include/linux/hdlc.h Sun Feb 3 17:35:45 2002
@@ -50,47 +50,19 @@ typedef struct {
#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */
#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */
-typedef struct {
- unsigned short encoding;
- unsigned short parity;
-}hdlc_proto;
-
-
#define LMI_DEFAULT 0 /* Default (current) setting */
#define LMI_NONE 1 /* No LMI, all PVCs are static */
#define LMI_ANSI 2 /* ANSI Annex D */
#define LMI_CCITT 3 /* ITU-T Annex A */
-typedef struct {
- unsigned int t391;
- unsigned int t392;
- unsigned int n391;
- unsigned int n392;
- unsigned int n393;
- unsigned short lmi;
- unsigned short dce; /* 1 for DCE (network side) operation */
-}fr_proto;
-
-typedef struct {
- unsigned int dlci;
-}fr_proto_pvc; /* for creating/deleting FR PVCs */
-
-
-typedef struct {
- unsigned int interval;
- unsigned int timeout;
-}cisco_proto;
-
-
-/* PPP doesn't need any info now - supply length = 0 to ioctl */
-
-
#ifdef __KERNEL__
#include <linux/skbuff.h>
#include <linux/netdevice.h>
+#include <linux/hdlc/ioctl.h>
#include <net/syncppp.h>
+
#define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */
#define HDLC_MAX_MRU (HDLC_MAX_MTU + 10) /* max 10 bytes for FR */
@@ -251,8 +223,8 @@ typedef struct hdlc_device_struct {
}cisco;
struct {
- hdlc_proto settings;
- }hdlc;
+ raw_proto settings;
+ }raw;
struct {
struct ppp_device pppdev;
diff -burpN linux-2.5.3-kh/include/linux/if.h linux-2.5.3/include/linux/if.h
--- linux-2.5.3-kh/include/linux/if.h Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/include/linux/if.h Sun Feb 3 17:15:13 2002
@@ -21,6 +21,7 @@
#include <linux/types.h> /* for "__kernel_caddr_t" et al */
#include <linux/socket.h> /* for "struct sockaddr" et al */
+#include <linux/hdlc/ioctl.h>
/* Standard interface flags (netdevice->flags). */
#define IFF_UP 0x1 /* interface is up */
@@ -95,10 +96,13 @@ struct ifmap
struct if_settings
{
unsigned int type; /* Type of physical device or protocol */
- unsigned int data_length; /* device/protocol data length */
- void * data; /* pointer to data, ignored if length = 0 */
+ union {
+ /* {atm/eth/dsl}_settings anyone ? */
+ struct hdlc_settings ifsu_hdlc;
+ } ifs_ifsu;
};
+#define ifs_hdlc ifs_ifsu.ifsu_hdlc
/*
* Interface request structure used for socket
Then turn SIOCDEVICE into whatever seems appropriate.
See <URL:http://www.cogenit.fr/dscc4/hdlc-S2> for a modified version of
Krzysztof's patch (172ko).
--
Ueimor
I like. This patch much improves things.
"SIOCDEVICE" as a constant is unacceptable, so it would need to be
SIOCWANDEVICE or something similar.
SIOCETHTOOL, for example, is an ioctl which actually provides
sub-ioctls, so that is probably a good model to follow.
More comments after I return from New York, and can review these at
length...
Jeff
Jeff Garzik <[email protected]> :
> I like. This patch much improves things.
>
> "SIOCDEVICE" as a constant is unacceptable, so it would need to be
> SIOCWANDEVICE or something similar.
>
> SIOCETHTOOL, for example, is an ioctl which actually provides
> sub-ioctls, so that is probably a good model to follow.
Actually that's what hdlc patch does: SIOCDEVICE is the main ioctl with
sub-ioctl IF_IFACE_SYNC_SERIAL, IF_GET_PROTO, IF_PROTO_{RAW/CISCO/FR/PPP/X25}.
Regarding SIOCETHTOOL, is netdev_ethtool_ioctl() weak typing a work in
progress ?
Try #2:
- what about SIOCWANDEV ?
- drivers updated
diff -burpN linux-2.5.3-kh/drivers/net/wan/Config.in linux-2.5.3/drivers/net/wan/Config.in
--- linux-2.5.3-kh/drivers/net/wan/Config.in Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/Config.in Sun Feb 3 21:00:02 2002
@@ -37,7 +37,7 @@ if [ "$CONFIG_WAN" = "y" ]; then
# The Etinc driver has not been tested as non-modular yet.
#
- dep_tristate ' Etinc PCISYNC serial board support (EXPERIMENTAL)' CONFIG_DSCC4 m
+ dep_tristate ' Etinc PCISYNC serial board support (EXPERIMENTAL)' CONFIG_DSCC4
#
diff -burpN linux-2.5.3-kh/drivers/net/wan/c101.c linux-2.5.3/drivers/net/wan/c101.c
--- linux-2.5.3-kh/drivers/net/wan/c101.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/c101.c Sun Feb 3 22:04:51 2002
@@ -24,6 +24,7 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netdevice.h>
+#include <linux/hdlc/ioctl.h>
#include <linux/hdlc.h>
#include <linux/delay.h>
#include <asm/io.h>
@@ -31,8 +32,8 @@
#include "hd64570.h"
-static const char* version = "Moxa C101 driver version: 1.09";
-static const char* devname = "C101";
+static const char version[] = "Moxa C101 driver version: 1.09";
+static const char devname[] = "C101";
#define C101_PAGE 0x1D00
#define C101_DTR 0x1E00
@@ -179,9 +180,10 @@ static int c101_close(struct net_device
static int c101_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
+ struct hdlc_settings *hdlc_s = &ifr->ifr_settings.ifs_hdlc;
+ const size_t size = sizeof(sync_serial_settings);
hdlc_device *hdlc = dev_to_hdlc(dev);
port_t *port = hdlc_to_port(hdlc);
- const size_t size = sizeof(sync_serial_settings);
#ifdef CONFIG_HDLC_DEBUG_RINGS
if (cmd == SIOCDEVPRIVATE) {
@@ -189,31 +191,21 @@ static int c101_ioctl(struct net_device
return 0;
}
#endif
- if (cmd != SIOCDEVICE)
+ if (cmd != SIOCWANDEV)
return hdlc_ioctl(dev, ifr, cmd);
switch(ifr->ifr_settings.type) {
case IF_GET_IFACE:
ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return interface type only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &port->settings, size))
+ if (copy_to_user(&hdlc_s->hdlcs_sync, &port->settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_IFACE_SYNC_SERIAL:
if(!capable(CAP_NET_ADMIN))
return -EPERM;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&port->settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&port->settings, &hdlc_s->hdlcs_sync, size))
return -EFAULT;
/* FIXME - put sanity checks here */
return c101_set_iface(port);
diff -burpN linux-2.5.3-kh/drivers/net/wan/dscc4.c linux-2.5.3/drivers/net/wan/dscc4.c
--- linux-2.5.3-kh/drivers/net/wan/dscc4.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/dscc4.c Sun Feb 3 21:59:12 2002
@@ -112,6 +112,7 @@
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <net/syncppp.h>
+#include <linux/hdlc/ioctl.h>
#include <linux/hdlc.h>
/* Version */
@@ -1065,37 +1066,29 @@ static int dscc4_set_clock(struct net_de
static int dscc4_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
+ struct hdlc_settings *hdlc_s = &ifr->ifr_settings.ifs_hdlc;
struct dscc4_dev_priv *dpriv = dscc4_priv(dev);
- struct if_settings *if_s = &ifr->ifr_settings;
const size_t size = sizeof(dpriv->settings);
int ret = 0;
if (dev->flags & IFF_UP)
return -EBUSY;
- if (cmd != SIOCDEVICE)
+ if (cmd != SIOCWANDEV)
return -EOPNOTSUPP;
switch(ifr->ifr_settings.type) {
case IF_GET_IFACE:
- if_s->type = IF_IFACE_SYNC_SERIAL;
- if (if_s->data_length == 0)
- return 0;
- if (if_s->data_length < size)
- return -ENOMEM;
- if (copy_to_user(if_s->data, &dpriv->settings, size))
+ ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
+ if (copy_to_user(&hdlc_s->hdlcs_sync, &dpriv->settings, size))
return -EFAULT;
- if_s->data_length = size;
break;
case IF_IFACE_SYNC_SERIAL:
if(!capable(CAP_NET_ADMIN))
return -EPERM;
- if (if_s->data_length != size)
- return -ENOMEM;
-
- if (copy_from_user(&dpriv->settings, if_s->data, size))
+ if (copy_from_user(&dpriv->settings, &hdlc_s->hdlcs_sync, size))
return -EFAULT;
ret = dscc4_set_iface(dev);
break;
diff -burpN linux-2.5.3-kh/drivers/net/wan/farsync.c linux-2.5.3/drivers/net/wan/farsync.c
--- linux-2.5.3-kh/drivers/net/wan/farsync.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/farsync.c Sun Feb 3 21:52:16 2002
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <asm/uaccess.h>
#include <linux/if.h>
+#include <linux/hdlc/ioctl.h>
#include <linux/hdlc.h>
#include "farsync.h"
@@ -1013,18 +1014,12 @@ static int
fst_set_iface ( struct fst_card_info *card, struct fst_port_info *port,
struct ifreq *ifr )
{
+ struct hdlc_settings *hdlc_s = &ifr->ifr_settings.ifs_hdlc;
sync_serial_settings sync;
int i;
- if ( ifr->ifr_settings.data_length != sizeof ( sync ))
- {
- return -ENOMEM;
- }
-
- if ( copy_from_user ( &sync, ifr->ifr_settings.data, sizeof ( sync )))
- {
+ if ( copy_from_user ( &sync, &hdlc_s->hdlcs_sync, sizeof ( sync )))
return -EFAULT;
- }
if ( sync.loopback )
return -EINVAL;
@@ -1076,6 +1071,7 @@ static int
fst_get_iface ( struct fst_card_info *card, struct fst_port_info *port,
struct ifreq *ifr )
{
+ struct hdlc_settings *hdlc_s = &ifr->ifr_settings.ifs_hdlc;
sync_serial_settings sync;
int i;
@@ -1096,15 +1092,6 @@ fst_get_iface ( struct fst_card_info *ca
ifr->ifr_settings.type = IF_IFACE_X21;
break;
}
- if ( ifr->ifr_settings.data_length == 0 )
- {
- return 0; /* only type requested */
- }
-
- if ( ifr->ifr_settings.data_length < sizeof ( sync ))
- {
- return -ENOMEM;
- }
i = port->index;
sync.clock_rate = FST_RDL ( card, portConfig[i].lineSpeed );
@@ -1112,12 +1099,9 @@ fst_get_iface ( struct fst_card_info *ca
sync.clock_type = FST_RDB ( card, portConfig[i].internalClock );
sync.loopback = 0;
- if ( copy_to_user ( ifr->ifr_settings.data, &sync, sizeof ( sync )))
- {
+ if ( copy_to_user (&hdlc_s->hdlcs_sync, &sync, sizeof ( sync )))
return -EFAULT;
- }
- ifr->ifr_settings.data_length = sizeof ( sync );
return 0;
}
@@ -1240,7 +1224,7 @@ fst_ioctl ( struct net_device *dev, stru
return set_conf_from_info ( card, port, &info );
- case SIOCDEVICE:
+ case SIOCWANDEV:
switch ( ifr->ifr_settings.type )
{
case IF_GET_IFACE:
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_cisco.c linux-2.5.3/drivers/net/wan/hdlc_cisco.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_cisco.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_cisco.c Sun Feb 3 22:03:35 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
#define CISCO_MULTICAST 0x8F /* Cisco multicast address */
@@ -247,6 +248,7 @@ static void cisco_close(hdlc_device *hdl
int hdlc_cisco_ioctl(hdlc_device *hdlc, struct ifreq *ifr)
{
+ cisco_proto *cisco_s = &ifr->ifr_settings.ifs_hdlc.hdlcs_cisco;
const size_t size = sizeof(cisco_proto);
struct net_device *dev = hdlc_to_dev(hdlc);
int result;
@@ -254,14 +256,8 @@ int hdlc_cisco_ioctl(hdlc_device *hdlc,
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_CISCO;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &hdlc->state.cisco.settings, size))
+ if (copy_to_user(cisco_s, &hdlc->state.cisco.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_CISCO:
@@ -271,11 +267,7 @@ int hdlc_cisco_ioctl(hdlc_device *hdlc,
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&hdlc->state.cisco.settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&hdlc->state.cisco.settings, cisco_s, size))
return -EFAULT;
/* FIXME - put sanity checks here */
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_fr.c linux-2.5.3/drivers/net/wan/hdlc_fr.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_fr.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_fr.c Sun Feb 3 22:03:22 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
__inline__ pvc_device* find_pvc(hdlc_device *hdlc, u16 dlci)
@@ -776,6 +777,7 @@ static void fr_destroy(hdlc_device *hdlc
int hdlc_fr_ioctl(hdlc_device *hdlc, struct ifreq *ifr)
{
+ fr_proto *fr_s = &ifr->ifr_settings.ifs_hdlc.hdlcs_fr;
const size_t size = sizeof(fr_proto);
struct net_device *dev = hdlc_to_dev(hdlc);
fr_proto_pvc pvc;
@@ -784,14 +786,8 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_FR;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &hdlc->state.fr.settings, size))
+ if (copy_to_user(fr_s, &hdlc->state.fr.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_FR:
@@ -801,11 +797,7 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&hdlc->state.fr.settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&hdlc->state.fr.settings, fr_s, size))
return -EFAULT;
/* FIXME - put sanity checks here */
@@ -839,7 +831,7 @@ int hdlc_fr_ioctl(hdlc_device *hdlc, str
if(!capable(CAP_NET_ADMIN))
return -EPERM;
- if (copy_from_user(&pvc, ifr->ifr_settings.data,
+ if (copy_from_user(&pvc, &ifr->ifr_settings.ifs_hdlc.hdlcs_pvc,
sizeof(fr_proto_pvc)))
return -EFAULT;
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_generic.c linux-2.5.3/drivers/net/wan/hdlc_generic.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_generic.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_generic.c Sun Feb 3 21:53:04 2002
@@ -38,7 +37,7 @@
#include <linux/hdlc.h>
-static const char* version = "HDLC support module revision 1.08";
+static const char version[] = "HDLC support module revision 1.08";
static int hdlc_change_mtu(struct net_device *dev, int new_mtu)
@@ -72,7 +71,7 @@ int hdlc_ioctl(struct net_device *dev, s
hdlc_device *hdlc = dev_to_hdlc(dev);
unsigned int proto;
- if (cmd != SIOCDEVICE)
+ if (cmd != SIOCWANDEV)
return -EINVAL;
switch(ifr->ifr_settings.type) {
@@ -102,6 +101,7 @@ int hdlc_ioctl(struct net_device *dev, s
case IF_PROTO_FR: return hdlc_fr_ioctl(hdlc, ifr);
#endif
#ifdef CONFIG_HDLC_X25
+
case IF_PROTO_X25: return hdlc_x25_ioctl(hdlc, ifr);
#endif
default: return -ENOSYS;
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_ppp.c linux-2.5.3/drivers/net/wan/hdlc_ppp.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_ppp.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_ppp.c Sun Feb 3 16:52:30 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
static int ppp_open(hdlc_device *hdlc)
@@ -85,7 +86,6 @@ int hdlc_ppp_ioctl(hdlc_device *hdlc, st
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_PPP;
- ifr->ifr_settings.data_length = 0;
return 0; /* return protocol only, no settable parameters */
case IF_PROTO_PPP:
@@ -95,8 +95,7 @@ int hdlc_ppp_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != 0)
- return -EINVAL; /* no settable parameters */
+ /* no settable parameters */
hdlc_detach(hdlc);
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_raw.c linux-2.5.3/drivers/net/wan/hdlc_raw.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_raw.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_raw.c Sun Feb 3 22:03:11 2002
@@ -25,6 +25,7 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
static void raw_rx(struct sk_buff *skb)
@@ -37,21 +38,16 @@ static void raw_rx(struct sk_buff *skb)
int hdlc_raw_ioctl(hdlc_device *hdlc, struct ifreq *ifr)
{
- const size_t size = sizeof(hdlc_proto);
+ raw_proto *raw_s = &ifr->ifr_settings.ifs_hdlc.hdlcs_raw;
+ const size_t size = sizeof(raw_proto);
struct net_device *dev = hdlc_to_dev(hdlc);
int result;
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_HDLC;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return protocol only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &hdlc->state.hdlc.settings, size))
+ if (copy_to_user(raw_s, &hdlc->state.raw.settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_PROTO_HDLC:
@@ -61,18 +57,15 @@ int hdlc_raw_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&hdlc->state.hdlc.settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&hdlc->state.raw.settings, raw_s, size))
return -EFAULT;
+
/* FIXME - put sanity checks here */
hdlc_detach(hdlc);
- result=hdlc->attach(hdlc, hdlc->state.hdlc.settings.encoding,
- hdlc->state.hdlc.settings.parity);
+ result=hdlc->attach(hdlc, hdlc->state.raw.settings.encoding,
+ hdlc->state.raw.settings.parity);
if (result) {
hdlc->proto = -1;
return result;
diff -burpN linux-2.5.3-kh/drivers/net/wan/hdlc_x25.c linux-2.5.3/drivers/net/wan/hdlc_x25.c
--- linux-2.5.3-kh/drivers/net/wan/hdlc_x25.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/hdlc_x25.c Sun Feb 3 16:31:35 2002
@@ -25,6 +25,8 @@
#include <linux/lapb.h>
#include <linux/rtnetlink.h>
#include <linux/hdlc.h>
+#include <linux/hdlc/ioctl.h>
+
/* These functions are callbacks called by LAPB layer */
@@ -187,7 +189,6 @@ int hdlc_x25_ioctl(hdlc_device *hdlc, st
switch (ifr->ifr_settings.type) {
case IF_GET_PROTO:
ifr->ifr_settings.type = IF_PROTO_X25;
- ifr->ifr_settings.data_length = 0;
return 0; /* return protocol only, no settable parameters */
case IF_PROTO_X25:
@@ -196,9 +197,6 @@ int hdlc_x25_ioctl(hdlc_device *hdlc, st
if(dev->flags & IFF_UP)
return -EBUSY;
-
- if (ifr->ifr_settings.data_length != 0)
- return -EINVAL; /* no settable parameters */
hdlc_detach(hdlc);
diff -burpN linux-2.5.3-kh/drivers/net/wan/n2.c linux-2.5.3/drivers/net/wan/n2.c
--- linux-2.5.3-kh/drivers/net/wan/n2.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/drivers/net/wan/n2.c Sun Feb 3 22:05:04 2002
@@ -30,13 +30,14 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/netdevice.h>
+#include <linux/hdlc/ioctl.h>
#include <linux/hdlc.h>
#include <asm/io.h>
#include "hd64570.h"
-static const char* version = "SDL RISCom/N2 driver version: 1.09";
-static const char* devname = "RISCom/N2";
+static const char version[] = "SDL RISCom/N2 driver version: 1.09";
+static const char devname[] = "RISCom/N2";
#define USE_WINDOWSIZE 16384
#define USE_BUS16BITS 1
@@ -250,9 +251,10 @@ static int n2_close(struct net_device *d
static int n2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
+ struct hdlc_settings *hdlc_s = &ifr->ifr_settings.ifs_hdlc;
+ const size_t size = sizeof(sync_serial_settings);
hdlc_device *hdlc = dev_to_hdlc(dev);
port_t *port = hdlc_to_port(hdlc);
- const size_t size = sizeof(sync_serial_settings);
#ifdef CONFIG_HDLC_DEBUG_RINGS
if (cmd == SIOCDEVPRIVATE) {
@@ -260,31 +262,21 @@ static int n2_ioctl(struct net_device *d
return 0;
}
#endif
- if (cmd != SIOCDEVICE)
+ if (cmd != SIOCWANDEV)
return hdlc_ioctl(dev, ifr, cmd);
switch(ifr->ifr_settings.type) {
case IF_GET_IFACE:
ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
- if (ifr->ifr_settings.data_length == 0)
- return 0; /* return interface type only */
- if (ifr->ifr_settings.data_length < size)
- return -ENOMEM; /* buffer too small */
- if (copy_to_user(ifr->ifr_settings.data,
- &port->settings, size))
+ if (copy_to_user(&hdlc_s->hdlcs_sync, &port->settings, size))
return -EFAULT;
- ifr->ifr_settings.data_length = size;
return 0;
case IF_IFACE_SYNC_SERIAL:
if(!capable(CAP_NET_ADMIN))
return -EPERM;
- if (ifr->ifr_settings.data_length != size)
- return -ENOMEM; /* incorrect data length */
-
- if (copy_from_user(&port->settings,
- ifr->ifr_settings.data, size))
+ if (copy_from_user(&port->settings, &hdlc_s->hdlcs_sync, size))
return -EFAULT;
/* FIXME - put sanity checks here */
return n2_set_iface(port);
diff -burpN linux-2.5.3-kh/include/linux/hdlc/ioctl.h linux-2.5.3/include/linux/hdlc/ioctl.h
--- linux-2.5.3-kh/include/linux/hdlc/ioctl.h Thu Jan 1 01:00:00 1970
+++ linux-2.5.3/include/linux/hdlc/ioctl.h Sun Feb 3 21:46:11 2002
@@ -0,0 +1,61 @@
+#ifndef __HDLC_IOCTL_H__
+#define __HDLC_IOCTL_H__
+
+typedef struct {
+ unsigned int clock_rate; /* bits per second */
+ unsigned int clock_type; /* internal, external, TX-internal etc. */
+ unsigned short loopback;
+} sync_serial_settings; /* V.35, V.24, X.21 */
+
+typedef struct {
+ unsigned int clock_rate; /* bits per second */
+ unsigned int clock_type; /* internal, external, TX-internal etc. */
+ unsigned short loopback;
+ unsigned int slot_map;
+} te1_settings; /* T1, E1 */
+
+typedef struct {
+ unsigned short encoding;
+ unsigned short parity;
+} raw_proto;
+
+typedef struct {
+ unsigned int t391;
+ unsigned int t392;
+ unsigned int n391;
+ unsigned int n392;
+ unsigned int n393;
+ unsigned short lmi;
+ unsigned short dce; /* 1 for DCE (network side) operation */
+} fr_proto;
+
+typedef struct {
+ unsigned int dlci;
+} fr_proto_pvc; /* for creating/deleting FR PVCs */
+
+typedef struct {
+ unsigned int interval;
+ unsigned int timeout;
+} cisco_proto;
+
+/* PPP doesn't need any info now - supply length = 0 to ioctl */
+
+struct hdlc_settings {
+ union {
+ raw_proto raw;
+ cisco_proto cisco;
+ fr_proto fr;
+ fr_proto_pvc fr_pvc;
+ sync_serial_settings sync;
+ te1_settings te1;
+ } hdlcs_hdlcu;
+};
+
+#define hdlcs_raw hdlcs_hdlcu.raw
+#define hdlcs_cisco hdlcs_hdlcu.cisco
+#define hdlcs_fr hdlcs_hdlcu.fr
+#define hdlcs_pvc hdlcs_hdlcu.fr_pvc
+#define hdlcs_sync hdlcs_hdlcu.sync
+#define hdlcs_te1 hdlcs_hdlcu.te1
+
+#endif /* __HDLC_IOCTL_H__ */
diff -burpN linux-2.5.3-kh/include/linux/hdlc.h linux-2.5.3/include/linux/hdlc.h
--- linux-2.5.3-kh/include/linux/hdlc.h Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/include/linux/hdlc.h Sun Feb 3 21:56:35 2002
@@ -18,20 +18,6 @@
#define CLOCK_TXINT 3 /* Internal TX and external RX clock */
#define CLOCK_TXFROMRX 4 /* TX clock derived from external RX clock */
-typedef struct {
- unsigned int clock_rate; /* bits per second */
- unsigned int clock_type; /* internal, external, TX-internal etc. */
- unsigned short loopback;
-}sync_serial_settings; /* V.35, V.24, X.21 */
-
-typedef struct {
- unsigned int clock_rate; /* bits per second */
- unsigned int clock_type; /* internal, external, TX-internal etc. */
- unsigned short loopback;
- unsigned int slot_map;
-}te1_settings; /* T1, E1 */
-
-
#define ENCODING_DEFAULT 0 /* Default (current) setting */
#define ENCODING_NRZ 1
@@ -50,47 +36,19 @@ typedef struct {
#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */
#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */
-typedef struct {
- unsigned short encoding;
- unsigned short parity;
-}hdlc_proto;
-
-
#define LMI_DEFAULT 0 /* Default (current) setting */
#define LMI_NONE 1 /* No LMI, all PVCs are static */
#define LMI_ANSI 2 /* ANSI Annex D */
#define LMI_CCITT 3 /* ITU-T Annex A */
-typedef struct {
- unsigned int t391;
- unsigned int t392;
- unsigned int n391;
- unsigned int n392;
- unsigned int n393;
- unsigned short lmi;
- unsigned short dce; /* 1 for DCE (network side) operation */
-}fr_proto;
-
-typedef struct {
- unsigned int dlci;
-}fr_proto_pvc; /* for creating/deleting FR PVCs */
-
-
-typedef struct {
- unsigned int interval;
- unsigned int timeout;
-}cisco_proto;
-
-
-/* PPP doesn't need any info now - supply length = 0 to ioctl */
-
-
#ifdef __KERNEL__
#include <linux/skbuff.h>
#include <linux/netdevice.h>
+#include <linux/hdlc/ioctl.h>
#include <net/syncppp.h>
+
#define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */
#define HDLC_MAX_MRU (HDLC_MAX_MTU + 10) /* max 10 bytes for FR */
@@ -251,8 +209,8 @@ typedef struct hdlc_device_struct {
}cisco;
struct {
- hdlc_proto settings;
- }hdlc;
+ raw_proto settings;
+ }raw;
struct {
struct ppp_device pppdev;
diff -burpN linux-2.5.3-kh/include/linux/if.h linux-2.5.3/include/linux/if.h
--- linux-2.5.3-kh/include/linux/if.h Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/include/linux/if.h Sun Feb 3 21:56:31 2002
@@ -21,6 +21,7 @@
#include <linux/types.h> /* for "__kernel_caddr_t" et al */
#include <linux/socket.h> /* for "struct sockaddr" et al */
+#include <linux/hdlc/ioctl.h>
/* Standard interface flags (netdevice->flags). */
#define IFF_UP 0x1 /* interface is up */
@@ -95,10 +96,13 @@ struct ifmap
struct if_settings
{
unsigned int type; /* Type of physical device or protocol */
- unsigned int data_length; /* device/protocol data length */
- void * data; /* pointer to data, ignored if length = 0 */
+ union {
+ /* {atm/eth/dsl}_settings anyone ? */
+ struct hdlc_settings ifsu_hdlc;
+ } ifs_ifsu;
};
+#define ifs_hdlc ifs_ifsu.ifsu_hdlc
/*
* Interface request structure used for socket
diff -burpN linux-2.5.3-kh/include/linux/sockios.h linux-2.5.3/include/linux/sockios.h
--- linux-2.5.3-kh/include/linux/sockios.h Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/include/linux/sockios.h Sun Feb 3 21:51:00 2002
@@ -81,7 +81,7 @@
#define SIOCGMIIREG 0x8948 /* Read MII PHY register. */
#define SIOCSMIIREG 0x8949 /* Write MII PHY register. */
-#define SIOCDEVICE 0x894A /* get/set netdev parameters */
+#define SIOCWANDEV 0x894A /* get/set netdev parameters */
/* ARP cache control calls. */
/* 0x8950 - 0x8952 * obsolete calls, don't re-use */
diff -burpN linux-2.5.3-kh/net/core/dev.c linux-2.5.3/net/core/dev.c
--- linux-2.5.3-kh/net/core/dev.c Sun Feb 3 18:03:26 2002
+++ linux-2.5.3/net/core/dev.c Sun Feb 3 21:51:21 2002
@@ -2111,7 +2111,7 @@ static int dev_ifsioc(struct ifreq *ifr,
cmd == SIOCGMIIPHY ||
cmd == SIOCGMIIREG ||
cmd == SIOCSMIIREG ||
- cmd == SIOCDEVICE) {
+ cmd == SIOCWANDEV) {
if (dev->do_ioctl) {
if (!netif_device_present(dev))
return -ENODEV;
@@ -2277,7 +2277,7 @@ int dev_ioctl(unsigned int cmd, void *ar
*/
default:
- if (cmd == SIOCDEVICE ||
+ if (cmd == SIOCWANDEV ||
(cmd >= SIOCDEVPRIVATE &&
cmd <= SIOCDEVPRIVATE + 15)) {
dev_load(ifr.ifr_name);
<URL:http://www.cogenit.fr/dscc4/hdlc-S3> contains the patch against 2.5.3.
Good night.
--
Ueimor
Francois Romieu <[email protected]> writes:
> --- linux-2.5.3-kh/include/linux/hdlc/ioctl.h Thu Jan 1 01:00:00 1970
> +++ linux-2.5.3/include/linux/hdlc/ioctl.h Sun Feb 3 21:46:11 2002
> +typedef struct {
> + unsigned short encoding;
> + unsigned short parity;
> +} raw_proto;
This isn't for "raw" protocol. It's for raw _HDLC_ (or "just" HDLC),
so I think a better name is still hdlc_proto.
> +struct hdlc_settings {
> + union {
> + raw_proto raw;
> + cisco_proto cisco;
> + fr_proto fr;
> + fr_proto_pvc fr_pvc;
> + sync_serial_settings sync;
> + te1_settings te1;
> + } hdlcs_hdlcu;
> +};
I want to avoid such a union, because it's possible some of future member
structs will be large.
> @@ -95,10 +96,13 @@ struct ifmap
> struct if_settings
> {
> unsigned int type; /* Type of physical device or protocol */
> - unsigned int data_length; /* device/protocol data length */
> - void * data; /* pointer to data, ignored if length = 0 */
> + union {
> + /* {atm/eth/dsl}_settings anyone ? */
> + struct hdlc_settings ifsu_hdlc;
> + } ifs_ifsu;
> };
And here. It's currently impossible, as if_settings must be 16 bytes long
at most. Unless, of course, we have a variable-sized ifreq.
--
Krzysztof Halasa
Network Administrator
Jeff Garzik <[email protected]> writes:
> "SIOCDEVICE" as a constant is unacceptable, so it would need to be
> SIOCWANDEVICE or something similar.
Well, I was probably under impression it should be used for Ethernet
as well (see the Dec 2000 thread)... Now I think I know people
using Ethernet (with full duplex over SM fibre) for WAN connections
- so SIOCWANDEVICE is ok. Not sure about TR, though - anyone using
it for WAN networking?
> SIOCETHTOOL, for example, is an ioctl which actually provides
> sub-ioctls, so that is probably a good model to follow.
SIOCDEVICE^WSIOCWANDEVICE of course has sub-ioctls as well. It is
obviously impossible without them.
I do _not_ want to fight any ETHTOOL vs SIOCDEVICE etc. battle here.
What I want is creating the best interface for controlling network
devices. Including Token Ring and Ethernet, unless there are valid
reasons to do otherwise.
I think we should concentrate on the interface first, then I will
patch the HDLC implementation.
If we're here... maybe we should really drop using the ifreq structure
and _replace_ it with better one (variable-sized)? It can be done
gradually, as both are quite compatible.
--
Krzysztof Halasa
Network Administrator
Krzysztof Halasa <[email protected]> :
> Francois Romieu <[email protected]> writes:
[...]
> > +typedef struct {
> > + unsigned short encoding;
> > + unsigned short parity;
> > +} raw_proto;
>
> This isn't for "raw" protocol. It's for raw _HDLC_ (or "just" HDLC),
> so I think a better name is still hdlc_proto.
hdlc with address and command unspecified looks "raw" to me.
-> raw_hdlc ?
--
Ueimor
Francois Romieu <[email protected]> writes:
> hdlc with address and command unspecified looks "raw" to me.
Sure, but its raw HDLC and not just "raw". By HDLC I mean flags, CRCs,
bit stuffing etc (for async transmission at least).
> -> raw_hdlc ?
Ok.
--
Krzysztof Halasa
Network Administrator