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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071// SPDX-License-Identifier: GPL-2.0-or-later/* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * PF_INET6 protocol dispatch tables. * * Authors: Pedro Roque <roque@di.fc.ul.pt> */
/* * Changes: * * Vince Laviano (vince@cs.stanford.edu) 16 May 2001 * - Removed unused variable 'inet6_protocol_base' * - Modified inet6_del_protocol() to correctly maintain copy bit. */#include <linux/module.h>#include <linux/netdevice.h>#include <linux/spinlock.h>#include <net/protocol.h>
#if IS_ENABLED(CONFIG_IPV6)struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;EXPORT_SYMBOL(inet6_protos);
int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol){ return !cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol], NULL, prot) ? 0 : -1;}EXPORT_SYMBOL(inet6_add_protocol);
int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol){ int ret;
ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol], prot, NULL) == prot) ? 0 : -1;
synchronize_net();
return ret;}EXPORT_SYMBOL(inet6_del_protocol);#endif
const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly;EXPORT_SYMBOL(inet6_offloads);
int inet6_add_offload(const struct net_offload *prot, unsigned char protocol){ return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol], NULL, prot) ? 0 : -1;}EXPORT_SYMBOL(inet6_add_offload);
int inet6_del_offload(const struct net_offload *prot, unsigned char protocol){ int ret;
ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol], prot, NULL) == prot) ? 0 : -1;
synchronize_net();
return ret;}EXPORT_SYMBOL(inet6_del_offload);