From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/core/dev_ioctl.c | 113 ++++++++++++++++++++++++++------------------------------
1 files changed, 52 insertions(+), 61 deletions(-)
diff --git a/kernel/net/core/dev_ioctl.c b/kernel/net/core/dev_ioctl.c
index 5650c0d..993420d 100644
--- a/kernel/net/core/dev_ioctl.c
+++ b/kernel/net/core/dev_ioctl.c
@@ -1,10 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/kmod.h>
#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/net_tstamp.h>
#include <linux/wireless.h>
+#include <net/dsa.h>
#include <net/wext.h>
/*
@@ -24,26 +26,6 @@
return netdev_get_name(net, ifr->ifr_name, ifr->ifr_ifindex);
}
-static gifconf_func_t *gifconf_list[NPROTO];
-
-/**
- * register_gifconf - register a SIOCGIF handler
- * @family: Address family
- * @gifconf: Function handler
- *
- * Register protocol dependent address dumping routines. The handler
- * that is passed must not be freed or reused until it has been replaced
- * by another handler.
- */
-int register_gifconf(unsigned int family, gifconf_func_t *gifconf)
-{
- if (family >= NPROTO)
- return -EINVAL;
- gifconf_list[family] = gifconf;
- return 0;
-}
-EXPORT_SYMBOL(register_gifconf);
-
/*
* Perform a SIOCGIFCONF call. This structure will change
* size eventually, and there is nothing I can do about it.
@@ -56,7 +38,6 @@
char __user *pos;
int len;
int total;
- int i;
/*
* Fetch the caller's info block.
@@ -71,19 +52,15 @@
total = 0;
for_each_netdev(net, dev) {
- for (i = 0; i < NPROTO; i++) {
- if (gifconf_list[i]) {
- int done;
- if (!pos)
- done = gifconf_list[i](dev, NULL, 0, size);
- else
- done = gifconf_list[i](dev, pos + total,
- len - total, size);
- if (done < 0)
- return -EFAULT;
- total += done;
- }
- }
+ int done;
+ if (!pos)
+ done = inet_gifconf(dev, NULL, 0, size);
+ else
+ done = inet_gifconf(dev, pos + total,
+ len - total, size);
+ if (done < 0)
+ return -EFAULT;
+ total += done;
}
/*
@@ -120,17 +97,6 @@
case SIOCGIFMTU: /* Get the MTU of a device */
ifr->ifr_mtu = dev->mtu;
- return 0;
-
- case SIOCGIFHWADDR:
- if (!dev->addr_len)
- memset(ifr->ifr_hwaddr.sa_data, 0,
- sizeof(ifr->ifr_hwaddr.sa_data));
- else
- memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr,
- min(sizeof(ifr->ifr_hwaddr.sa_data),
- (size_t)dev->addr_len));
- ifr->ifr_hwaddr.sa_family = dev->type;
return 0;
case SIOCGIFSLAVE:
@@ -187,7 +153,11 @@
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:
case HWTSTAMP_TX_ONESTEP_SYNC:
+ case HWTSTAMP_TX_ONESTEP_P2P:
tx_type_valid = 1;
+ break;
+ case __HWTSTAMP_TX_CNT:
+ /* not a real value */
break;
}
@@ -210,12 +180,35 @@
case HWTSTAMP_FILTER_NTP_ALL:
rx_filter_valid = 1;
break;
+ case __HWTSTAMP_FILTER_CNT:
+ /* not a real value */
+ break;
}
if (!tx_type_valid || !rx_filter_valid)
return -ERANGE;
return 0;
+}
+
+static int dev_do_ioctl(struct net_device *dev,
+ struct ifreq *ifr, unsigned int cmd)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+ int err = -EOPNOTSUPP;
+
+ err = dsa_ndo_do_ioctl(dev, ifr, cmd);
+ if (err == 0 || err != -EOPNOTSUPP)
+ return err;
+
+ if (ops->ndo_do_ioctl) {
+ if (netif_device_present(dev))
+ err = ops->ndo_do_ioctl(dev, ifr, cmd);
+ else
+ err = -ENODEV;
+ }
+
+ return err;
}
/*
@@ -234,7 +227,7 @@
switch (cmd) {
case SIOCSIFFLAGS: /* Set interface flags */
- return dev_change_flags(dev, ifr->ifr_flags);
+ return dev_change_flags(dev, ifr->ifr_flags, NULL);
case SIOCSIFMETRIC: /* Set the metric on the interface
(currently unused) */
@@ -246,7 +239,7 @@
case SIOCSIFHWADDR:
if (dev->addr_len > sizeof(struct sockaddr))
return -EINVAL;
- return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
+ return dev_set_mac_address_user(dev, &ifr->ifr_hwaddr, NULL);
case SIOCSIFHWBROADCAST:
if (ifr->ifr_hwaddr.sa_family != dev->type)
@@ -294,7 +287,7 @@
err = net_hwtstamp_validate(ifr);
if (err)
return err;
- /* fall through */
+ fallthrough;
/*
* Unknown or private ioctl
@@ -316,13 +309,7 @@
cmd == SIOCSHWTSTAMP ||
cmd == SIOCGHWTSTAMP ||
cmd == SIOCWANDEV) {
- err = -EOPNOTSUPP;
- if (ops->ndo_do_ioctl) {
- if (netif_device_present(dev))
- err = ops->ndo_do_ioctl(dev, ifr, cmd);
- else
- err = -ENODEV;
- }
+ err = dev_do_ioctl(dev, ifr, cmd);
} else
err = -EINVAL;
@@ -366,7 +353,8 @@
* dev_ioctl - network device ioctl
* @net: the applicable net namespace
* @cmd: command to issue
- * @arg: pointer to a struct ifreq in user space
+ * @ifr: pointer to a struct ifreq in user space
+ * @need_copyout: whether or not copy_to_user() should be called
*
* Issue ioctl functions to devices. This is normally called by the
* user space syscall interfaces but can sometimes be useful for
@@ -395,6 +383,12 @@
*/
switch (cmd) {
+ case SIOCGIFHWADDR:
+ dev_load(net, ifr->ifr_name);
+ ret = dev_get_mac_address(&ifr->ifr_hwaddr, net, ifr->ifr_name);
+ if (colon)
+ *colon = ':';
+ return ret;
/*
* These ioctl calls:
* - can be done by all.
@@ -404,7 +398,6 @@
case SIOCGIFFLAGS:
case SIOCGIFMETRIC:
case SIOCGIFMTU:
- case SIOCGIFHWADDR:
case SIOCGIFSLAVE:
case SIOCGIFMAP:
case SIOCGIFINDEX:
@@ -417,7 +410,6 @@
*colon = ':';
return ret;
-#ifdef CONFIG_ETHTOOL
case SIOCETHTOOL:
dev_load(net, ifr->ifr_name);
rtnl_lock();
@@ -426,7 +418,6 @@
if (colon)
*colon = ':';
return ret;
-#endif
/*
* These ioctl calls:
@@ -457,7 +448,7 @@
case SIOCSIFTXQLEN:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- /* fall through */
+ fallthrough;
/*
* These ioctl calls:
* - require local superuser power.
@@ -482,7 +473,7 @@
case SIOCSHWTSTAMP:
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
- /* fall through */
+ fallthrough;
case SIOCBONDSLAVEINFOQUERY:
case SIOCBONDINFOQUERY:
dev_load(net, ifr->ifr_name);
--
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