/* * kernel/configs.c * Echo the kernel .config file used to build the kernel * * Copyright (C) 2002 Khalid Aziz * Copyright (C) 2002 Randy Dunlap * Copyright (C) 2002 Al Stone * Copyright (C) 2002 Hewlett-Packard Company * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at * your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include /**************************************************/ /* the actual current config file */ /* * Define kernel_config_data and kernel_config_data_size, which contains the * wrapped and compressed configuration file. The file is first compressed * with gzip and then bounded by two eight byte magic numbers to allow * extraction from a binary kernel image: * * IKCFG_ST * * IKCFG_ED */ #define MAGIC_START "IKCFG_ST" #define MAGIC_END "IKCFG_ED" #include "config_data.h" #define MAGIC_SIZE (sizeof(MAGIC_START) - 1) #define kernel_config_data_size \ (sizeof(kernel_config_data) - 1 - MAGIC_SIZE * 2) #ifdef CONFIG_IKCONFIG_PROC static ssize_t ikconfig_read_current(struct file *file, char __user *buf, size_t len, loff_t * offset) { return simple_read_from_buffer(buf, len, offset, kernel_config_data + MAGIC_SIZE, kernel_config_data_size); } static const struct file_operations ikconfig_file_ops = { .owner = THIS_MODULE, .read = ikconfig_read_current, .llseek = default_llseek, }; static int __init ikconfig_init(void) { struct proc_dir_entry *entry; /* create the current config file */ entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL, &ikconfig_file_ops); if (!entry) return -ENOMEM; proc_set_size(entry, kernel_config_data_size); return 0; } static void __exit ikconfig_cleanup(void) { remove_proc_entry("config.gz", NULL); } module_init(ikconfig_init); module_exit(ikconfig_cleanup); #endif /* CONFIG_IKCONFIG_PROC */ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Randy Dunlap"); MODULE_DESCRIPTION("Echo the kernel .config file used to build the kernel"); cgi/linux/net-next.git/log/?h=nds-private-remove&id=bbb27fc33d44e7b8d96369810654df4ee1837566'>root/net/wireless/Makefile

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author	Marcus Huewe <suse-tux@gmx.de>	2017-02-06 18:34:56 +0100
committer	David S. Miller <davem@davemloft.net>	2017-02-08 11:54:40 -0500
commit	a11a7f71cac209c7c9cca66eb506e1ebb033a3b3 (patch)
tree	fe6133efabecfb467bda70d77607ca29492a5537 /net/ipv6
parent	926af6273fc683cd98cd0ce7bf0d04a02eed6742 (diff)

ipv6: addrconf: fix generation of new temporary addresses

Under some circumstances it is possible that no new temporary addresses will be generated. For instance, addrconf_prefix_rcv_add_addr() indirectly calls ipv6_create_tempaddr(), which creates a tentative temporary address and starts dad. Next, addrconf_prefix_rcv_add_addr() indirectly calls addrconf_verify_rtnl(). Now, assume that the previously created temporary address has the least preferred lifetime among all existing addresses and is still tentative (that is, dad is still running). Hence, the next run of addrconf_verify_rtnl() is performed when the preferred lifetime of the temporary address ends. If dad succeeds before the next run, the temporary address becomes deprecated during the next run, but no new temporary address is generated. In order to fix this, schedule the next addrconf_verify_rtnl() run slightly before the temporary address becomes deprecated, if dad succeeded. Signed-off-by: Marcus Huewe <suse-tux@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'net/ipv6')

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net/ipv6/addrconf.c

1 files changed, 6 insertions, 0 deletions