Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * vlanproc.c	VLAN Module. /proc filesystem interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *		This module is completely hardware-independent and provides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *		access to the router using Linux /proc filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Author:	Ben Greear, <greearb@candelatech.com> coppied from wanproc.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *               by: Gene Kozin	<genek@compuserve.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Copyright:	(c) 1998 Ben Greear
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * ============================================================================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * Jan 20, 1998        Ben Greear     Initial Version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  *****************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/netdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/if_vlan.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include <net/netns/generic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include "vlanproc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include "vlan.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) /****** Function Prototypes *************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) /* Methods for preparing data for reading proc entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) static int vlan_seq_show(struct seq_file *seq, void *v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) static void *vlan_seq_start(struct seq_file *seq, loff_t *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static void vlan_seq_stop(struct seq_file *seq, void *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) static int vlandev_seq_show(struct seq_file *seq, void *v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  *	Global Data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  *	Names of the proc directory entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) static const char name_root[]	 = "vlan";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) static const char name_conf[]	 = "config";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  *	Structures for interfacing with the /proc filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  *	VLAN creates its own directory /proc/net/vlan with the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57)  *	entries:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58)  *	config		device status/configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  *	<device>	entry for each  device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  *	Generic /proc/net/vlan/<file> file and inode operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) static const struct seq_operations vlan_seq_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	.start = vlan_seq_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	.next = vlan_seq_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	.stop = vlan_seq_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	.show = vlan_seq_show,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  * Proc filesystem directory entries.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) /* Strings */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static const char *const vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79)     [VLAN_NAME_TYPE_RAW_PLUS_VID]        = "VLAN_NAME_TYPE_RAW_PLUS_VID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80)     [VLAN_NAME_TYPE_PLUS_VID_NO_PAD]	 = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81)     [VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82)     [VLAN_NAME_TYPE_PLUS_VID]		 = "VLAN_NAME_TYPE_PLUS_VID",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  *	Interface functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  *	Clean up /proc/net/vlan entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) void vlan_proc_cleanup(struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	struct vlan_net *vn = net_generic(net, vlan_net_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	if (vn->proc_vlan_conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		remove_proc_entry(name_conf, vn->proc_vlan_dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (vn->proc_vlan_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		remove_proc_entry(name_root, net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	/* Dynamically added entries should be cleaned up as their vlan_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	 * is removed, so we should not have to take care of it here...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)  *	Create /proc/net/vlan entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) int __net_init vlan_proc_init(struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	struct vlan_net *vn = net_generic(net, vlan_net_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	vn->proc_vlan_dir = proc_net_mkdir(net, name_root, net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (!vn->proc_vlan_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	vn->proc_vlan_conf = proc_create_net(name_conf, S_IFREG | 0600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			vn->proc_vlan_dir, &vlan_seq_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 			sizeof(struct seq_net_private));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (!vn->proc_vlan_conf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	pr_err("can't create entry in proc filesystem!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	vlan_proc_cleanup(net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)  *	Add directory entry for VLAN device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int vlan_proc_add_dev(struct net_device *vlandev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	struct vlan_net *vn = net_generic(dev_net(vlandev), vlan_net_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	if (!strcmp(vlandev->name, name_conf))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	vlan->dent = proc_create_single_data(vlandev->name, S_IFREG | 0600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 			vn->proc_vlan_dir, vlandev_seq_show, vlandev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (!vlan->dent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		return -ENOBUFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)  *	Delete directory entry for VLAN device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) void vlan_proc_rem_dev(struct net_device *vlandev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	/** NOTE:  This will consume the memory pointed to by dent, it seems. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	proc_remove(vlan_dev_priv(vlandev)->dent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	vlan_dev_priv(vlandev)->dent = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) /****** Proc filesystem entry points ****************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)  * The following few functions build the content of /proc/net/vlan/config
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) /* start read of /proc/net/vlan/config */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static void *vlan_seq_start(struct seq_file *seq, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	__acquires(rcu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct net *net = seq_file_net(seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	loff_t i = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	rcu_read_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if (*pos == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return SEQ_START_TOKEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	for_each_netdev_rcu(net, dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		if (!is_vlan_dev(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		if (i++ == *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 			return dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	return  NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct net *net = seq_file_net(seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	++*pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	dev = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	if (v == SEQ_START_TOKEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		dev = net_device_entry(&net->dev_base_head);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	for_each_netdev_continue_rcu(net, dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		if (!is_vlan_dev(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		return dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) static void vlan_seq_stop(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	__releases(rcu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	rcu_read_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static int vlan_seq_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	struct net *net = seq_file_net(seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	struct vlan_net *vn = net_generic(net, vlan_net_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (v == SEQ_START_TOKEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		const char *nmtype = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		seq_puts(seq, "VLAN Dev name	 | VLAN ID\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		if (vn->name_type < ARRAY_SIZE(vlan_name_type_str))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		    nmtype =  vlan_name_type_str[vn->name_type];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		seq_printf(seq, "Name-Type: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			   nmtype ? nmtype :  "UNKNOWN");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		const struct net_device *vlandev = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		const struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		seq_printf(seq, "%-15s| %d  | %s\n",  vlandev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 			   vlan->vlan_id,    vlan->real_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static int vlandev_seq_show(struct seq_file *seq, void *offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	struct net_device *vlandev = (struct net_device *) seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	const struct vlan_dev_priv *vlan = vlan_dev_priv(vlandev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	struct rtnl_link_stats64 temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	const struct rtnl_link_stats64 *stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	static const char fmt64[] = "%30s %12llu\n";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	if (!is_vlan_dev(vlandev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	stats = dev_get_stats(vlandev, &temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	seq_printf(seq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		   "%s  VID: %d	 REORDER_HDR: %i  dev->priv_flags: %hx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		   vlandev->name, vlan->vlan_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		   (int)(vlan->flags & 1), vlandev->priv_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	seq_printf(seq, fmt64, "total frames received", stats->rx_packets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	seq_printf(seq, fmt64, "total bytes received", stats->rx_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	seq_printf(seq, fmt64, "Broadcast/Multicast Rcvd", stats->multicast);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	seq_puts(seq, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	seq_printf(seq, fmt64, "total frames transmitted", stats->tx_packets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	seq_printf(seq, fmt64, "total bytes transmitted", stats->tx_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	seq_printf(seq, "Device: %s", vlan->real_dev->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	/* now show all PRIORITY mappings relating to this VLAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	seq_printf(seq, "\nINGRESS priority mappings: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 			"0:%u  1:%u  2:%u  3:%u  4:%u  5:%u  6:%u 7:%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		   vlan->ingress_priority_map[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		   vlan->ingress_priority_map[1],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		   vlan->ingress_priority_map[2],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		   vlan->ingress_priority_map[3],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		   vlan->ingress_priority_map[4],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 		   vlan->ingress_priority_map[5],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		   vlan->ingress_priority_map[6],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		   vlan->ingress_priority_map[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	seq_printf(seq, " EGRESS priority mappings: ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	for (i = 0; i < 16; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		const struct vlan_priority_tci_mapping *mp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			= vlan->egress_priority_map[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		while (mp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 			seq_printf(seq, "%u:%hu ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 				   mp->priority, ((mp->vlan_qos >> 13) & 0x7));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 			mp = mp->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	seq_puts(seq, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) }